/* roulang page: index */
:root {
            --primary-dark: #1A1A1A;
            --primary-dark-light: #222222;
            --accent-green: #00C853;
            --accent-green-hover: #00B34A;
            --accent-green-glow: #00E676;
            --card-bg: #FFFFFF;
            --card-bg-alt: #F5F5F5;
            --card-bg-warm: #FAFAFA;
            --text-dark: #2C2C2C;
            --text-medium: #555555;
            --text-light: #888888;
            --text-muted: #AAAAAA;
            --border-color: #E8E8E8;
            --border-light: #F0F0F0;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 2px 12px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 4px 24px rgba(0, 0, 0, 0.12);
            --shadow-xl: 0 8px 40px rgba(0, 0, 0, 0.16);
            --radius-sm: 4px;
            --radius-md: 8px;
            --radius-lg: 12px;
            --radius-xl: 16px;
            --spacing-xs: 8px;
            --spacing-sm: 16px;
            --spacing-md: 24px;
            --spacing-lg: 40px;
            --spacing-xl: 56px;
            --spacing-2xl: 72px;
            --transition-fast: 0.15s ease;
            --transition-normal: 0.25s ease;
            --transition-slow: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            --font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --max-width: 1200px;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-family);
            line-height: 1.7;
            color: var(--text-dark);
            background-color: #FAFAFA;
            overflow-x: hidden;
            padding-bottom: 70px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }

        button {
            cursor: pointer;
            font-family: inherit;
        }

        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
        }

        .container-wide {
            max-width: 1320px;
            margin: 0 auto;
            padding: 0 20px;
        }

        .container-narrow {
            max-width: 900px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* ========== HEADER & NAVIGATION ========== */
        .site-header {
            background: #fff;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 1px 0 var(--border-light);
        }

        .brand-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 14px 20px;
            max-width: var(--max-width);
            margin: 0 auto;
        }

        .brand-logo {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--primary-dark);
            letter-spacing: 0.5px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .brand-logo .logo-icon {
            width: 34px;
            height: 34px;
            background: var(--accent-green);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1rem;
            font-weight: 700;
        }

        .brand-actions {
            display: flex;
            align-items: center;
            gap: 16px;
        }

        .brand-actions .icon-btn {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            border: 1px solid var(--border-color);
            background: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-medium);
            transition: all var(--transition-fast);
            font-size: 0.9rem;
        }

        .brand-actions .icon-btn:hover {
            border-color: var(--accent-green);
            color: var(--accent-green);
            background: #f9fff9;
        }

        .brand-actions .member-btn {
            padding: 8px 18px;
            border-radius: 20px;
            border: 1.5px solid var(--accent-green);
            background: #fff;
            color: var(--accent-green);
            font-size: 0.85rem;
            font-weight: 600;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .brand-actions .member-btn:hover {
            background: var(--accent-green);
            color: #fff;
        }

        .channel-row {
            background: var(--primary-dark);
            padding: 0;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
        }

        .channel-row::-webkit-scrollbar {
            height: 0;
        }

        .channel-nav {
            display: flex;
            align-items: center;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
            gap: 0;
            flex-wrap: nowrap;
            min-width: max-content;
        }

        .channel-nav a {
            display: block;
            padding: 13px 18px;
            color: #ccc;
            font-size: 0.9rem;
            font-weight: 500;
            white-space: nowrap;
            transition: all var(--transition-fast);
            border-bottom: 3px solid transparent;
            letter-spacing: 0.3px;
        }

        .channel-nav a:hover {
            color: #fff;
            border-bottom-color: rgba(255, 255, 255, 0.4);
        }

        .channel-nav a.active {
            color: var(--accent-green-glow);
            border-bottom-color: var(--accent-green);
            font-weight: 600;
        }

        .hamburger-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--primary-dark);
            padding: 8px;
            cursor: pointer;
            line-height: 1;
        }

        .mobile-menu {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: #fff;
            z-index: 2000;
            padding: 20px;
            overflow-y: auto;
            flex-direction: column;
        }

        .mobile-menu.active {
            display: flex;
        }

        .mobile-menu .close-btn {
            align-self: flex-end;
            background: none;
            border: none;
            font-size: 1.8rem;
            color: var(--text-dark);
            cursor: pointer;
            padding: 8px 12px;
        }

        .mobile-menu a {
            display: block;
            padding: 14px 0;
            font-size: 1.1rem;
            font-weight: 500;
            border-bottom: 1px solid var(--border-light);
            color: var(--text-dark);
        }

        .mobile-menu a.active {
            color: var(--accent-green);
            font-weight: 700;
        }

        @media (max-width: 768px) {
            .channel-nav {
                gap: 0;
                padding: 0 10px;
            }
            .channel-nav a {
                padding: 12px 12px;
                font-size: 0.8rem;
            }
            .brand-actions .member-btn {
                padding: 6px 12px;
                font-size: 0.78rem;
            }
            .brand-logo {
                font-size: 1.25rem;
            }
            .brand-logo .logo-icon {
                width: 28px;
                height: 28px;
                font-size: 0.85rem;
            }
            .hamburger-toggle {
                display: block;
            }
            .channel-row {
                display: none;
            }
            .channel-row.mobile-visible {
                display: block;
                position: fixed;
                top: 60px;
                left: 0;
                right: 0;
                z-index: 999;
                background: var(--primary-dark);
                box-shadow: var(--shadow-lg);
            }
        }

        @media (max-width: 520px) {
            .brand-row {
                padding: 10px 14px;
            }
            .brand-logo {
                font-size: 1.1rem;
            }
            .brand-actions {
                gap: 8px;
            }
            .brand-actions .icon-btn {
                width: 30px;
                height: 30px;
                font-size: 0.75rem;
            }
            .brand-actions .member-btn {
                padding: 5px 10px;
                font-size: 0.7rem;
            }
        }

        /* ========== HERO ========== */
        .hero-section {
            position: relative;
            background: var(--primary-dark);
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            min-height: 62vh;
            display: flex;
            align-items: center;
            overflow: hidden;
        }

        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(26, 26, 26, 0.88) 0%, rgba(26, 26, 26, 0.72) 40%, rgba(0, 0, 0, 0.55) 100%);
            z-index: 1;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            display: flex;
            align-items: center;
            gap: 40px;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 50px 20px;
            width: 100%;
        }

        .hero-text {
            flex: 1;
            min-width: 0;
        }

        .hero-badge {
            display: inline-block;
            background: rgba(0, 200, 83, 0.18);
            color: var(--accent-green-glow);
            padding: 6px 14px;
            border-radius: 20px;
            font-size: 0.82rem;
            font-weight: 600;
            letter-spacing: 0.5px;
            margin-bottom: 16px;
            border: 1px solid rgba(0, 200, 83, 0.3);
        }

        .hero-title {
            font-size: 3rem;
            font-weight: 700;
            color: #fff;
            line-height: 1.25;
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }

        .hero-title .char {
            display: inline-block;
            opacity: 0;
            transform: translateY(18px);
            animation: charIn 0.5s ease forwards;
        }

        @keyframes charIn {
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .hero-desc {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.8);
            line-height: 1.7;
            margin-bottom: 28px;
            max-width: 560px;
        }

        .hero-cta-group {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }

        .btn-primary {
            display: inline-block;
            padding: 14px 30px;
            background: var(--accent-green);
            color: #fff;
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 1rem;
            border: none;
            transition: all var(--transition-normal);
            letter-spacing: 0.3px;
            text-align: center;
            box-shadow: 0 4px 16px rgba(0, 200, 83, 0.35);
            animation: pulseGlow 2.5s ease-in-out infinite;
        }

        @keyframes pulseGlow {
            0%,
            100% {
                box-shadow: 0 4px 16px rgba(0, 200, 83, 0.35);
            }
            50% {
                box-shadow: 0 6px 28px rgba(0, 200, 83, 0.55);
            }
        }

        .btn-primary:hover {
            background: var(--accent-green-hover);
            color: #fff;
            box-shadow: 0 6px 24px rgba(0, 200, 83, 0.5);
            transform: translateY(-2px);
        }

        .btn-outline {
            display: inline-block;
            padding: 14px 30px;
            background: transparent;
            color: #fff;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 1rem;
            border: 2px solid rgba(255, 255, 255, 0.5);
            transition: all var(--transition-normal);
            letter-spacing: 0.3px;
            text-align: center;
        }

        .btn-outline:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.1);
            color: #fff;
        }

        .hero-visual {
            flex: 0 0 420px;
            background: rgba(255, 255, 255, 0.06);
            border-radius: var(--radius-lg);
            padding: 28px;
            border: 1px solid rgba(255, 255, 255, 0.12);
            backdrop-filter: blur(4px);
        }

        .hero-visual .demo-data-row {
            display: flex;
            justify-content: space-between;
            padding: 10px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            color: rgba(255, 255, 255, 0.75);
            font-size: 0.9rem;
        }

        .hero-visual .demo-data-row .live-dot {
            width: 8px;
            height: 8px;
            background: var(--accent-green);
            border-radius: 50%;
            display: inline-block;
            animation: liveBlink 1s infinite;
            margin-right: 6px;
        }

        @keyframes liveBlink {
            0%,
            100% {
                opacity: 1;
            }
            50% {
                opacity: 0.3;
            }
        }

        .hero-visual .demo-score {
            font-size: 2rem;
            font-weight: 700;
            color: #fff;
            text-align: center;
            padding: 16px 0;
        }

        @media (max-width: 1024px) {
            .hero-content {
                flex-direction: column;
                gap: 28px;
                padding: 40px 20px;
            }
            .hero-visual {
                flex: 0 0 auto;
                width: 100%;
                max-width: 500px;
            }
            .hero-title {
                font-size: 2.2rem;
            }
            .hero-section {
                min-height: 50vh;
            }
        }

        @media (max-width: 520px) {
            .hero-title {
                font-size: 1.7rem;
            }
            .hero-desc {
                font-size: 0.9rem;
            }
            .btn-primary,
            .btn-outline {
                padding: 12px 22px;
                font-size: 0.9rem;
            }
            .hero-section {
                min-height: auto;
            }
            .hero-content {
                padding: 30px 14px;
            }
        }

        /* ========== SECTION COMMON ========== */
        .section-pad {
            padding: var(--spacing-xl) 0;
        }
        .section-pad-lg {
            padding: var(--spacing-2xl) 0;
        }
        .section-pad-sm {
            padding: var(--spacing-lg) 0;
        }
        .section-dark {
            background: var(--primary-dark);
            color: #fff;
        }
        .section-light {
            background: #fff;
        }
        .section-alt {
            background: var(--card-bg-alt);
        }
        .section-warm {
            background: var(--card-bg-warm);
        }
        .section-title {
            font-size: 2rem;
            font-weight: 700;
            color: inherit;
            margin-bottom: 8px;
            letter-spacing: 0.3px;
            line-height: 1.3;
        }
        .section-subtitle {
            font-size: 1rem;
            color: var(--text-medium);
            margin-bottom: var(--spacing-lg);
            line-height: 1.6;
            max-width: 680px;
        }
        .section-dark .section-title {
            color: #fff;
        }
        .section-dark .section-subtitle {
            color: rgba(255, 255, 255, 0.7);
        }
        .section-label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 1.5px;
            color: var(--accent-green);
            margin-bottom: 8px;
        }

        @media (max-width: 768px) {
            .section-title {
                font-size: 1.5rem;
            }
            .section-pad {
                padding: var(--spacing-lg) 0;
            }
            .section-pad-lg {
                padding: var(--spacing-xl) 0;
            }
        }

        /* ========== CARDS ========== */
        .card {
            background: #fff;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-normal);
            overflow: hidden;
            height: 100%;
        }
        .card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
        }
        .card-body {
            padding: 20px;
        }
        .card-title {
            font-weight: 700;
            font-size: 1.1rem;
            margin-bottom: 6px;
            color: var(--text-dark);
        }
        .card-desc {
            font-size: 0.9rem;
            color: var(--text-medium);
            line-height: 1.6;
        }
        .card-icon {
            font-size: 2rem;
            color: var(--accent-green);
            margin-bottom: 12px;
        }

        /* ========== ASYMMETRIC GRID ========== */
        .asymmetric-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr;
            gap: 20px;
        }
        .asymmetric-grid .stack-col {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        @media (max-width: 768px) {
            .asymmetric-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ========== SCENE DEMO ========== */
        .scene-row {
            display: flex;
            align-items: center;
            gap: 40px;
            padding: 30px 0;
            flex-wrap: wrap;
        }
        .scene-row.reverse {
            flex-direction: row-reverse;
        }
        .scene-img {
            flex: 0 0 48%;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
        }
        .scene-img img {
            width: 100%;
            height: auto;
            display: block;
        }
        .scene-text {
            flex: 1;
            min-width: 280px;
        }
        .scene-text h3 {
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--text-dark);
        }
        .scene-text p {
            color: var(--text-medium);
            line-height: 1.7;
            margin-bottom: 8px;
        }
        @media (max-width: 768px) {
            .scene-row {
                flex-direction: column;
                gap: 20px;
            }
            .scene-row.reverse {
                flex-direction: column;
            }
            .scene-img {
                flex: 0 0 auto;
                width: 100%;
            }
        }

        /* ========== NEWS LIST ========== */
        .news-list {
            list-style: none;
            padding: 0;
        }
        .news-list li {
            display: flex;
            gap: 16px;
            padding: 16px 0;
            border-bottom: 1px solid var(--border-light);
            transition: all var(--transition-fast);
            border-left: 3px solid transparent;
            padding-left: 14px;
            margin-left: -14px;
        }
        .news-list li:hover {
            border-left-color: var(--accent-green);
            background: #fafffb;
        }
        .news-date {
            flex: 0 0 90px;
            font-size: 0.82rem;
            color: var(--text-muted);
            font-weight: 500;
            padding-top: 2px;
        }
        .news-info {
            flex: 1;
        }
        .news-info .news-title {
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--text-dark);
            margin-bottom: 4px;
            display: block;
        }
        .news-info .news-title:hover {
            color: var(--accent-green);
        }
        .news-info .news-summary {
            font-size: 0.82rem;
            color: var(--text-light);
            line-height: 1.5;
            margin-bottom: 6px;
        }
        .news-info .read-more {
            font-size: 0.78rem;
            color: var(--accent-green);
            font-weight: 600;
            transition: color var(--transition-fast);
        }
        .news-info .read-more:hover {
            color: var(--accent-green-hover);
        }
        @media (max-width: 520px) {
            .news-list li {
                flex-direction: column;
                gap: 4px;
                padding-left: 10px;
                margin-left: -10px;
            }
            .news-date {
                flex: 0 0 auto;
            }
        }

        /* ========== FAQ ACCORDION ========== */
        .faq-accordion {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            border-bottom: 1px solid var(--border-light);
            overflow: hidden;
        }
        .faq-question {
            width: 100%;
            text-align: left;
            padding: 18px 20px;
            background: var(--card-bg-alt);
            border: none;
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-dark);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            transition: background var(--transition-fast);
            border-radius: var(--radius-sm);
            margin: 2px 0;
        }
        .faq-question:hover {
            background: #eef9f0;
        }
        .faq-question .arrow {
            transition: transform var(--transition-slow);
            font-size: 0.8rem;
            color: var(--accent-green);
        }
        .faq-item.open .faq-question .arrow {
            transform: rotate(180deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-slow);
            padding: 0 20px;
            font-size: 0.92rem;
            color: var(--text-medium);
            line-height: 1.7;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 14px 20px;
        }

        /* ========== BOTTOM FIXED CTA ========== */
        .bottom-fixed-cta {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 999;
            background: rgba(26, 26, 26, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            padding: 12px 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 20px;
            flex-wrap: wrap;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            animation: slideUpFade 0.5s ease 0.8s both;
        }
        @keyframes slideUpFade {
            from {
                transform: translateY(100%);
                opacity: 0;
            }
            to {
                transform: translateY(0);
                opacity: 1;
            }
        }
        .bottom-fixed-cta .cta-text {
            color: #fff;
            font-weight: 600;
            font-size: 0.95rem;
            letter-spacing: 0.3px;
        }
        .bottom-fixed-cta .btn-primary-sm {
            padding: 10px 22px;
            background: var(--accent-green);
            color: #fff;
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 0.9rem;
            border: none;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .bottom-fixed-cta .btn-primary-sm:hover {
            background: var(--accent-green-hover);
            box-shadow: 0 4px 16px rgba(0, 200, 83, 0.4);
        }
        @media (max-width: 520px) {
            .bottom-fixed-cta {
                padding: 10px 14px;
                gap: 10px;
            }
            .bottom-fixed-cta .cta-text {
                font-size: 0.8rem;
            }
            .bottom-fixed-cta .btn-primary-sm {
                padding: 8px 16px;
                font-size: 0.78rem;
            }
        }

        /* ========== GUARANTEE ICONS ========== */
        .guarantee-row {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            justify-content: center;
        }
        .guarantee-item {
            flex: 0 0 auto;
            min-width: 140px;
            text-align: center;
            padding: 16px;
        }
        .guarantee-item .g-icon {
            font-size: 2.2rem;
            color: var(--accent-green);
            margin-bottom: 8px;
        }
        .guarantee-item .g-label {
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--text-dark);
        }
        .guarantee-item .g-desc {
            font-size: 0.78rem;
            color: var(--text-light);
        }

        /* ========== CHANGELOG ========== */
        .changelog-list {
            list-style: none;
            padding: 0;
            max-width: 700px;
        }
        .changelog-list li {
            padding: 12px 0;
            border-bottom: 1px solid var(--border-light);
            display: flex;
            gap: 14px;
            align-items: baseline;
        }
        .changelog-version {
            font-weight: 700;
            font-size: 0.85rem;
            color: var(--accent-green);
            flex: 0 0 70px;
        }
        .changelog-detail {
            font-size: 0.9rem;
            color: var(--text-medium);
            line-height: 1.5;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, 0.7);
            padding: 40px 20px 30px;
            font-size: 0.85rem;
            line-height: 1.8;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
            max-width: var(--max-width);
            margin: 0 auto 30px;
        }
        .footer-col h4 {
            color: #fff;
            font-weight: 700;
            font-size: 0.95rem;
            margin-bottom: 12px;
            letter-spacing: 0.3px;
        }
        .footer-col a {
            display: block;
            color: rgba(255, 255, 255, 0.6);
            transition: color var(--transition-fast);
            font-size: 0.83rem;
            padding: 2px 0;
        }
        .footer-col a:hover {
            color: var(--accent-green-glow);
        }
        .footer-bottom {
            max-width: var(--max-width);
            margin: 0 auto;
            text-align: center;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 20px;
            font-size: 0.78rem;
            color: rgba(255, 255, 255, 0.5);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.6);
            margin: 0 4px;
        }
        .footer-bottom a:hover {
            color: var(--accent-green-glow);
        }
        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
        }
        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
        }

        /* ========== STATS ROW ========== */
        .stats-row {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            justify-content: center;
        }
        .stat-card {
            background: #fff;
            border-radius: var(--radius-md);
            padding: 24px 20px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            flex: 1;
            min-width: 150px;
            max-width: 220px;
            transition: all var(--transition-normal);
        }
        .stat-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
        }
        .stat-number {
            font-size: 2.5rem;
            font-weight: 700;
            color: var(--accent-green);
            line-height: 1;
        }
        .stat-label {
            font-size: 0.85rem;
            color: var(--text-medium);
            margin-top: 6px;
        }

        /* ========== FORM ========== */
        .subscribe-form {
            display: flex;
            gap: 10px;
            max-width: 500px;
            flex-wrap: wrap;
        }
        .subscribe-form input {
            flex: 1;
            min-width: 200px;
            padding: 12px 16px;
            border: 2px solid var(--border-color);
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            font-family: inherit;
            transition: border-color var(--transition-fast);
            outline: none;
        }
        .subscribe-form input:focus {
            border-color: var(--accent-green);
        }
        .subscribe-form .btn-submit {
            padding: 12px 26px;
            background: var(--accent-green);
            color: #fff;
            border: none;
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 0.95rem;
            cursor: pointer;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .subscribe-form .btn-submit:hover {
            background: var(--accent-green-hover);
        }

        /* ========== BADGE / TAG ========== */
        .tag {
            display: inline-block;
            padding: 4px 10px;
            background: #e8f8ed;
            color: var(--accent-green);
            border-radius: 12px;
            font-size: 0.75rem;
            font-weight: 600;
            letter-spacing: 0.3px;
        }

        /* ========== DEEP CONTENT ========== */
        .deep-content-block {
            background: #fff;
            border-radius: var(--radius-md);
            padding: 28px 24px;
            box-shadow: var(--shadow-sm);
            margin-bottom: 20px;
        }
        .deep-content-block h3 {
            font-size: 1.3rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text-dark);
        }
        .deep-content-block .meta {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-bottom: 14px;
        }
        .deep-content-block .content-body {
            font-size: 0.95rem;
            color: var(--text-medium);
            line-height: 1.8;
            text-indent: 2em;
        }
        .deep-content-block .content-body blockquote {
            border-left: 4px solid var(--accent-green);
            margin: 16px 0;
            padding: 10px 16px;
            background: #f9fdf9;
            color: var(--text-dark);
            font-style: italic;
            text-indent: 0;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
        }

        /* ========== UTILITY ========== */
        .text-center {
            text-align: center;
        }
        .mb-1 {
            margin-bottom: 8px;
        }
        .mb-2 {
            margin-bottom: 16px;
        }
        .mb-3 {
            margin-bottom: 24px;
        }
        .mb-4 {
            margin-bottom: 32px;
        }
        .mt-2 {
            margin-top: 16px;
        }
        .mt-3 {
            margin-top: 24px;
        }

        /* ========== FADE IN ON SCROLL ========== */
        .fade-in-section {
            opacity: 0;
            transform: translateY(30px);
            transition: opacity 0.6s ease, transform 0.6s ease;
        }
        .fade-in-section.visible {
            opacity: 1;
            transform: translateY(0);
        }

        /* ========== CATEGORY GRID ========== */
        .category-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }
        .category-grid .cat-card {
            background: #fff;
            border-radius: var(--radius-md);
            padding: 20px 16px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-normal);
            cursor: pointer;
            border: 2px solid transparent;
            display: block;
            color: inherit;
        }
        .category-grid .cat-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
            border-color: var(--accent-green);
        }
        .category-grid .cat-card .cat-icon {
            font-size: 2rem;
            margin-bottom: 8px;
        }
        .category-grid .cat-card .cat-name {
            font-weight: 700;
            font-size: 0.95rem;
            color: var(--text-dark);
        }
        .category-grid .cat-card .cat-hint {
            font-size: 0.75rem;
            color: var(--text-light);
            margin-top: 4px;
        }
        @media (max-width: 768px) {
            .category-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 400px) {
            .category-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
        }

        /* ========== TESTIMONIAL ========== */
        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .testimonial-card {
            background: #fff;
            border-radius: var(--radius-md);
            padding: 22px 18px;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-normal);
        }
        .testimonial-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .testimonial-card .quote {
            font-size: 0.9rem;
            color: var(--text-medium);
            line-height: 1.6;
            font-style: italic;
            margin-bottom: 10px;
            position: relative;
            padding-left: 16px;
            border-left: 3px solid var(--accent-green);
        }
        .testimonial-card .author {
            font-size: 0.8rem;
            color: var(--text-light);
            font-weight: 600;
        }
        @media (max-width: 768px) {
            .testimonial-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ========== PROCESS STEPS ========== */
        .process-steps {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
            justify-content: center;
        }
        .process-step {
            flex: 1;
            min-width: 200px;
            max-width: 260px;
            text-align: center;
            padding: 20px 14px;
            background: #fff;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            position: relative;
            transition: all var(--transition-normal);
        }
        .process-step:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
        }
        .process-step .step-num {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--accent-green);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1.1rem;
            margin: 0 auto 10px;
        }
        .process-step h4 {
            font-weight: 700;
            font-size: 0.95rem;
            margin-bottom: 4px;
            color: var(--text-dark);
        }
        .process-step p {
            font-size: 0.82rem;
            color: var(--text-light);
            line-height: 1.5;
        }

/* roulang page: category1 */
:root {
            --primary-dark: #1A1A1A;
            --primary-dark-light: #222222;
            --accent-green: #00C853;
            --accent-green-hover: #00B34A;
            --accent-green-glow: #00E676;
            --card-bg: #FFFFFF;
            --card-bg-alt: #F5F5F5;
            --card-bg-warm: #FAFAFA;
            --text-dark: #2C2C2C;
            --text-medium: #555555;
            --text-light: #888888;
            --text-muted: #AAAAAA;
            --border-color: #E8E8E8;
            --border-light: #F0F0F0;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 2px 12px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 4px 24px rgba(0, 0, 0, 0.12);
            --shadow-xl: 0 8px 40px rgba(0, 0, 0, 0.16);
            --radius-sm: 4px;
            --radius-md: 8px;
            --radius-lg: 12px;
            --radius-xl: 16px;
            --spacing-xs: 8px;
            --spacing-sm: 16px;
            --spacing-md: 24px;
            --spacing-lg: 40px;
            --spacing-xl: 56px;
            --spacing-2xl: 72px;
            --transition-fast: 0.15s ease;
            --transition-normal: 0.25s ease;
            --transition-slow: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            --font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --max-width: 1200px;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        body {
            font-family: var(--font-family);
            line-height: 1.7;
            color: var(--text-dark);
            background-color: #FAFAFA;
            overflow-x: hidden;
            margin: 0;
            padding: 0;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }
        button {
            cursor: pointer;
            font-family: inherit;
        }
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
        }
        .container-wide {
            max-width: 1320px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .container-narrow {
            max-width: 900px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: #fff;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 1px 0 var(--border-light);
        }
        .brand-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 14px 20px;
            max-width: var(--max-width);
            margin: 0 auto;
        }
        .brand-logo {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--primary-dark);
            letter-spacing: 0.5px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .brand-logo .logo-icon {
            width: 34px;
            height: 34px;
            background: var(--accent-green);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1rem;
            font-weight: 700;
            flex-shrink: 0;
        }
        .brand-actions {
            display: flex;
            align-items: center;
            gap: 16px;
        }
        .brand-actions .icon-btn {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            border: 1px solid var(--border-color);
            background: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-medium);
            transition: all var(--transition-fast);
            font-size: 0.9rem;
        }
        .brand-actions .icon-btn:hover {
            border-color: var(--accent-green);
            color: var(--accent-green);
            background: #f9fff9;
        }
        .brand-actions .member-btn {
            padding: 8px 18px;
            border-radius: 20px;
            border: 1.5px solid var(--accent-green);
            background: #fff;
            color: var(--accent-green);
            font-size: 0.85rem;
            font-weight: 600;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .brand-actions .member-btn:hover {
            background: var(--accent-green);
            color: #fff;
        }
        .channel-row {
            background: var(--primary-dark);
            padding: 0;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
        }
        .channel-row::-webkit-scrollbar {
            height: 0;
        }
        .channel-nav {
            display: flex;
            align-items: center;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
            gap: 0;
            flex-wrap: nowrap;
            min-width: max-content;
        }
        .channel-nav a {
            display: block;
            padding: 13px 18px;
            color: #ccc;
            font-size: 0.9rem;
            font-weight: 500;
            white-space: nowrap;
            transition: all var(--transition-fast);
            border-bottom: 3px solid transparent;
            letter-spacing: 0.3px;
        }
        .channel-nav a:hover {
            color: #fff;
            border-bottom-color: rgba(255, 255, 255, 0.4);
        }
        .channel-nav a.active {
            color: #fff;
            border-bottom-color: var(--accent-green);
            font-weight: 600;
        }
        .btn {
            display: inline-block;
            padding: 12px 28px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.95rem;
            text-align: center;
            transition: all var(--transition-normal);
            border: none;
            cursor: pointer;
            letter-spacing: 0.3px;
        }
        .btn-primary {
            background: var(--accent-green);
            color: #fff;
            box-shadow: 0 2px 8px rgba(0, 200, 83, 0.3);
        }
        .btn-primary:hover {
            background: var(--accent-green-hover);
            box-shadow: 0 4px 16px rgba(0, 200, 83, 0.45);
            transform: translateY(-1px);
            color: #fff;
        }
        .btn-outline {
            background: transparent;
            color: var(--accent-green);
            border: 2px solid var(--accent-green);
        }
        .btn-outline:hover {
            background: var(--accent-green);
            color: #fff;
        }
        .btn-lg {
            padding: 16px 36px;
            font-size: 1.05rem;
            border-radius: var(--radius-md);
        }
        .btn-white {
            background: #fff;
            color: var(--primary-dark);
            font-weight: 600;
        }
        .btn-white:hover {
            background: #f0f0f0;
            color: var(--primary-dark);
        }
        .section {
            padding: var(--spacing-xl) 0;
        }
        .section-dark {
            background: var(--primary-dark);
            color: #fff;
        }
        .section-light {
            background: #fff;
        }
        .section-alt {
            background: var(--card-bg-alt);
        }
        .section-label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 1.5px;
            color: var(--accent-green);
            margin-bottom: 8px;
        }
        .section-title {
            font-size: 2rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 12px;
            line-height: 1.35;
        }
        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-medium);
            margin-bottom: var(--spacing-md);
            line-height: 1.6;
        }
        .section-dark .section-title {
            color: #fff;
        }
        .section-dark .section-subtitle {
            color: #ccc;
        }
        .card {
            background: var(--card-bg);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            padding: var(--spacing-md);
            transition: all var(--transition-normal);
            border: 1px solid var(--border-light);
            height: 100%;
        }
        .card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
            border-color: transparent;
        }
        .card-icon {
            width: 48px;
            height: 48px;
            border-radius: var(--radius-sm);
            background: #E8F5E9;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            color: var(--accent-green);
            margin-bottom: 14px;
            flex-shrink: 0;
        }
        .card-title {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 6px;
        }
        .card-desc {
            font-size: 0.9rem;
            color: var(--text-medium);
            line-height: 1.6;
        }
        .hero-section {
            position: relative;
            min-height: 70vh;
            display: flex;
            align-items: center;
            background: var(--primary-dark);
            overflow: hidden;
        }
        .hero-bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.35;
            z-index: 0;
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(26, 26, 26, 0.85) 0%, rgba(26, 26, 26, 0.55) 100%);
            z-index: 1;
        }
        .hero-content {
            position: relative;
            z-index: 2;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 40px 20px;
            width: 100%;
        }
        .hero-content h1 {
            font-size: 2.8rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
            line-height: 1.3;
            letter-spacing: -0.5px;
        }
        .hero-content .hero-subtitle {
            font-size: 1.15rem;
            color: #ddd;
            margin-bottom: 28px;
            line-height: 1.7;
            max-width: 600px;
        }
        .hero-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }
        .hero-stats {
            display: flex;
            gap: 32px;
            margin-top: 32px;
            flex-wrap: wrap;
        }
        .hero-stat {
            text-align: left;
        }
        .hero-stat .stat-num {
            font-size: 2rem;
            font-weight: 700;
            color: var(--accent-green-glow);
            line-height: 1;
        }
        .hero-stat .stat-label {
            font-size: 0.8rem;
            color: #bbb;
            margin-top: 4px;
        }
        .feature-grid {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr;
            gap: 20px;
        }
        .feature-grid.asymmetric {
            grid-template-columns: 1.4fr 1fr 1fr;
        }
        .feature-card {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 28px;
            border: 1px solid var(--border-light);
            transition: all var(--transition-normal);
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .feature-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
            border-color: transparent;
        }
        .feature-card.large {
            grid-row: span 2;
            background: var(--primary-dark);
            color: #fff;
            border: none;
        }
        .feature-card.large .card-title {
            color: #fff;
            font-size: 1.3rem;
        }
        .feature-card.large .card-desc {
            color: #ccc;
        }
        .feature-card.large .card-icon {
            background: rgba(0, 200, 83, 0.2);
            color: var(--accent-green-glow);
        }
        .image-text-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }
        .image-text-block.reverse {
            direction: rtl;
        }
        .image-text-block.reverse .text-col {
            direction: ltr;
        }
        .image-col img {
            border-radius: var(--radius-lg);
            width: 100%;
            box-shadow: var(--shadow-lg);
        }
        .text-col h3 {
            font-size: 1.6rem;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--text-dark);
        }
        .text-col p {
            color: var(--text-medium);
            line-height: 1.7;
            margin-bottom: 10px;
        }
        .section-dark .text-col h3 {
            color: #fff;
        }
        .section-dark .text-col p {
            color: #ccc;
        }
        .league-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }
        .league-card {
            background: #fff;
            border-radius: var(--radius-md);
            padding: 20px;
            text-align: center;
            border: 1px solid var(--border-light);
            transition: all var(--transition-normal);
            cursor: pointer;
        }
        .league-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
            border-color: var(--accent-green);
        }
        .league-card .league-icon {
            font-size: 2rem;
            margin-bottom: 8px;
        }
        .league-card .league-name {
            font-weight: 700;
            font-size: 0.95rem;
            color: var(--text-dark);
        }
        .league-card .league-count {
            font-size: 0.8rem;
            color: var(--text-light);
            margin-top: 2px;
        }
        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .testimonial-card {
            background: #fff;
            border-radius: var(--radius-md);
            padding: 24px;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            position: relative;
        }
        .testimonial-card .quote-mark {
            font-size: 3rem;
            color: var(--accent-green);
            opacity: 0.3;
            line-height: 1;
            position: absolute;
            top: 10px;
            left: 16px;
        }
        .testimonial-card .quote-text {
            font-size: 0.9rem;
            color: var(--text-medium);
            line-height: 1.7;
            margin-top: 10px;
            font-style: italic;
        }
        .testimonial-card .quote-author {
            font-size: 0.8rem;
            color: var(--text-light);
            margin-top: 12px;
            font-weight: 600;
        }
        .faq-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .faq-item {
            border-bottom: 1px solid var(--border-color);
            margin-bottom: 0;
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 0;
            cursor: pointer;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-dark);
            transition: color var(--transition-fast);
            gap: 12px;
            user-select: none;
        }
        .faq-question:hover {
            color: var(--accent-green);
        }
        .faq-question .faq-arrow {
            transition: transform var(--transition-normal);
            font-size: 0.8rem;
            color: var(--text-light);
            flex-shrink: 0;
        }
        .faq-item.open .faq-question .faq-arrow {
            transform: rotate(180deg);
            color: var(--accent-green);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-normal);
            padding: 0;
            color: var(--text-medium);
            font-size: 0.9rem;
            line-height: 1.7;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding-bottom: 16px;
        }
        .cta-bar {
            background: var(--primary-dark);
            padding: var(--spacing-lg) 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-bar::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at center, rgba(0, 200, 83, 0.12) 0%, transparent 70%);
            pointer-events: none;
        }
        .cta-bar h2 {
            font-size: 1.8rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 8px;
            position: relative;
        }
        .cta-bar p {
            color: #ccc;
            margin-bottom: 20px;
            position: relative;
        }
        .site-footer {
            background: #111;
            color: #bbb;
            padding: var(--spacing-xl) 0 var(--spacing-md);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
        }
        .footer-col h4 {
            font-size: 0.9rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: 0.5px;
        }
        .footer-col a {
            display: block;
            font-size: 0.85rem;
            color: #999;
            padding: 4px 0;
            transition: color var(--transition-fast);
        }
        .footer-col a:hover {
            color: var(--accent-green);
        }
        .footer-bottom {
            text-align: center;
            padding-top: var(--spacing-md);
            margin-top: var(--spacing-md);
            border-top: 1px solid #2a2a2a;
            font-size: 0.8rem;
            color: #777;
            max-width: var(--max-width);
            margin-left: auto;
            margin-right: auto;
            padding-left: 20px;
            padding-right: 20px;
        }
        .footer-bottom a {
            color: #999;
        }
        .footer-bottom a:hover {
            color: var(--accent-green);
        }
        .fade-in {
            opacity: 0;
            transform: translateY(24px);
            transition: opacity 0.6s ease, transform 0.6s ease;
        }
        .fade-in.visible {
            opacity: 1;
            transform: translateY(0);
        }
        @media (max-width: 1024px) {
            .feature-grid,
            .feature-grid.asymmetric {
                grid-template-columns: 1fr 1fr;
            }
            .feature-card.large {
                grid-row: span 1;
                grid-column: span 2;
            }
            .image-text-block {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .image-text-block.reverse {
                direction: ltr;
            }
            .league-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .testimonial-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .hero-content h1 {
                font-size: 2.2rem;
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 768px) {
            .feature-grid,
            .feature-grid.asymmetric {
                grid-template-columns: 1fr;
            }
            .feature-card.large {
                grid-column: span 1;
            }
            .league-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .testimonial-grid {
                grid-template-columns: 1fr;
            }
            .hero-content h1 {
                font-size: 1.7rem;
            }
            .hero-stats {
                gap: 18px;
            }
            .hero-stat .stat-num {
                font-size: 1.5rem;
            }
            .section {
                padding: var(--spacing-lg) 0;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .brand-actions .member-btn {
                padding: 6px 12px;
                font-size: 0.75rem;
            }
            .channel-nav a {
                padding: 10px 12px;
                font-size: 0.8rem;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
            .hero-section {
                min-height: 55vh;
            }
        }
        @media (max-width: 520px) {
            .hero-content h1 {
                font-size: 1.45rem;
            }
            .hero-content .hero-subtitle {
                font-size: 0.9rem;
            }
            .hero-actions {
                flex-direction: column;
                gap: 10px;
            }
            .hero-actions .btn {
                width: 100%;
                text-align: center;
            }
            .hero-stats {
                gap: 12px;
            }
            .hero-stat .stat-num {
                font-size: 1.3rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .brand-row {
                padding: 10px 14px;
            }
            .brand-logo {
                font-size: 1.2rem;
                gap: 6px;
            }
            .brand-logo .logo-icon {
                width: 28px;
                height: 28px;
                font-size: 0.8rem;
            }
            .league-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
        }

/* roulang page: category2 */
:root {
            --primary-dark: #1A1A1A;
            --primary-dark-light: #222222;
            --accent-green: #00C853;
            --accent-green-hover: #00B34A;
            --accent-green-glow: #00E676;
            --card-bg: #FFFFFF;
            --card-bg-alt: #F5F5F5;
            --card-bg-warm: #FAFAFA;
            --text-dark: #2C2C2C;
            --text-medium: #555555;
            --text-light: #888888;
            --text-muted: #AAAAAA;
            --border-color: #E8E8E8;
            --border-light: #F0F0F0;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 2px 12px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 4px 24px rgba(0, 0, 0, 0.12);
            --shadow-xl: 0 8px 40px rgba(0, 0, 0, 0.16);
            --radius-sm: 4px;
            --radius-md: 8px;
            --radius-lg: 12px;
            --radius-xl: 16px;
            --spacing-xs: 8px;
            --spacing-sm: 16px;
            --spacing-md: 24px;
            --spacing-lg: 40px;
            --spacing-xl: 56px;
            --spacing-2xl: 72px;
            --transition-fast: 0.15s ease;
            --transition-normal: 0.25s ease;
            --transition-slow: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            --font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --max-width: 1200px;
        }

        html {
            scroll-behavior: smooth;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-family);
            line-height: 1.7;
            color: var(--text-dark);
            background-color: #FAFAFA;
            overflow-x: hidden;
            padding-bottom: 70px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }

        button {
            cursor: pointer;
            font-family: inherit;
        }

        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
        }

        .container-wide {
            max-width: 1320px;
            margin: 0 auto;
            padding: 0 20px;
        }

        .container-narrow {
            max-width: 900px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* ========== HEADER & NAVIGATION ========== */
        .site-header {
            background: #fff;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 1px 0 var(--border-light);
        }

        .brand-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 14px 20px;
            max-width: var(--max-width);
            margin: 0 auto;
        }

        .brand-logo {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--primary-dark);
            letter-spacing: 0.5px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .brand-logo .logo-icon {
            width: 34px;
            height: 34px;
            background: var(--accent-green);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1rem;
            font-weight: 700;
        }

        .brand-actions {
            display: flex;
            align-items: center;
            gap: 16px;
        }

        .brand-actions .icon-btn {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            border: 1px solid var(--border-color);
            background: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-medium);
            transition: all var(--transition-fast);
            font-size: 0.9rem;
        }

        .brand-actions .icon-btn:hover {
            border-color: var(--accent-green);
            color: var(--accent-green);
            background: #f9fff9;
        }

        .brand-actions .member-btn {
            padding: 8px 18px;
            border-radius: 20px;
            border: 1.5px solid var(--accent-green);
            background: #fff;
            color: var(--accent-green);
            font-size: 0.85rem;
            font-weight: 600;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .brand-actions .member-btn:hover {
            background: var(--accent-green);
            color: #fff;
        }

        .channel-row {
            background: var(--primary-dark);
            padding: 0;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
        }

        .channel-row::-webkit-scrollbar {
            height: 0;
        }

        .channel-nav {
            display: flex;
            align-items: center;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
            gap: 0;
            flex-wrap: nowrap;
            min-width: max-content;
        }

        .channel-nav a {
            display: block;
            padding: 13px 18px;
            color: #ccc;
            font-size: 0.9rem;
            font-weight: 500;
            white-space: nowrap;
            transition: all var(--transition-fast);
            border-bottom: 3px solid transparent;
            letter-spacing: 0.3px;
        }

        .channel-nav a:hover {
            color: #fff;
            border-bottom-color: rgba(255, 255, 255, 0.3);
        }

        .channel-nav a.active {
            color: #fff;
            border-bottom-color: var(--accent-green);
            font-weight: 600;
        }

        /* ========== HERO ========== */
        .hero-section {
            background: var(--primary-dark);
            position: relative;
            min-height: 70vh;
            display: flex;
            align-items: center;
            overflow: hidden;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
            opacity: 0.25;
            z-index: 0;
        }

        .hero-section::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(26, 26, 26, 0.92) 0%, rgba(26, 26, 26, 0.78) 40%, rgba(0, 0, 0, 0.65) 100%);
            z-index: 1;
        }

        .hero-inner {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 60px 20px;
            width: 100%;
        }

        .hero-text {
            color: #fff;
        }

        .hero-badge {
            display: inline-block;
            padding: 6px 16px;
            background: rgba(0, 200, 83, 0.15);
            border: 1px solid rgba(0, 200, 83, 0.35);
            border-radius: 20px;
            color: var(--accent-green-glow);
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.5px;
            margin-bottom: 20px;
            animation: fadeInUp 0.6s ease forwards;
        }

        .hero-text h1 {
            font-size: 2.8rem;
            font-weight: 700;
            line-height: 1.25;
            margin-bottom: 16px;
            color: #fff;
            letter-spacing: 0.5px;
            animation: fadeInUp 0.7s ease forwards;
            animation-delay: 0.1s;
            opacity: 0;
            animation-fill-mode: forwards;
        }

        .hero-text h1 .highlight {
            color: var(--accent-green-glow);
            position: relative;
        }

        .hero-text .hero-subtitle {
            font-size: 1.1rem;
            color: #ccc;
            line-height: 1.7;
            margin-bottom: 28px;
            max-width: 520px;
            animation: fadeInUp 0.7s ease forwards;
            animation-delay: 0.2s;
            opacity: 0;
            animation-fill-mode: forwards;
        }

        .hero-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            animation: fadeInUp 0.7s ease forwards;
            animation-delay: 0.3s;
            opacity: 0;
            animation-fill-mode: forwards;
        }

        .btn-primary {
            display: inline-block;
            padding: 14px 32px;
            background: var(--accent-green);
            color: #fff;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 1rem;
            letter-spacing: 0.3px;
            transition: all var(--transition-normal);
            border: none;
            box-shadow: 0 4px 16px rgba(0, 200, 83, 0.3);
        }

        .btn-primary:hover {
            background: var(--accent-green-hover);
            box-shadow: 0 6px 24px rgba(0, 200, 83, 0.45);
            transform: translateY(-2px);
            color: #fff;
        }

        .btn-outline-light {
            display: inline-block;
            padding: 14px 32px;
            background: transparent;
            color: #fff;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 1rem;
            letter-spacing: 0.3px;
            transition: all var(--transition-normal);
            border: 2px solid rgba(255, 255, 255, 0.5);
        }

        .btn-outline-light:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
        }

        .hero-visual {
            position: relative;
            animation: fadeInUp 0.8s ease forwards;
            animation-delay: 0.25s;
            opacity: 0;
            animation-fill-mode: forwards;
        }

        .hero-visual img {
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-xl);
            width: 100%;
            object-fit: cover;
            aspect-ratio: 4/3;
        }

        .hero-visual .data-tag {
            position: absolute;
            background: var(--accent-green);
            color: #fff;
            padding: 8px 16px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 700;
            white-space: nowrap;
            box-shadow: var(--shadow-lg);
        }

        .hero-visual .data-tag.tag-top {
            top: -12px;
            right: 20px;
            animation: floatTag 3s ease-in-out infinite;
        }

        .hero-visual .data-tag.tag-bottom {
            bottom: -12px;
            left: 20px;
            animation: floatTag 3s ease-in-out infinite;
            animation-delay: 1.5s;
        }

        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        @keyframes floatTag {
            0%,
            100% {
                transform: translateY(0);
            }
            50% {
                transform: translateY(-8px);
            }
        }

        /* ========== SECTION STYLES ========== */
        .section {
            padding: var(--spacing-2xl) 0;
        }

        .section-dark {
            background: var(--primary-dark);
            color: #fff;
        }

        .section-light {
            background: #fff;
        }

        .section-alt {
            background: var(--card-bg-alt);
        }

        .section-warm {
            background: var(--card-bg-warm);
        }

        .section-header {
            text-align: center;
            margin-bottom: var(--spacing-xl);
        }

        .section-header h2 {
            font-size: 2rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 10px;
            letter-spacing: 0.3px;
        }

        .section-dark .section-header h2 {
            color: #fff;
        }

        .section-header .section-subtitle {
            font-size: 1rem;
            color: var(--text-light);
            max-width: 600px;
            margin: 0 auto;
        }

        .section-dark .section-header .section-subtitle {
            color: #aaa;
        }

        .section-divider {
            width: 50px;
            height: 3px;
            background: var(--accent-green);
            border-radius: 2px;
            margin: 12px auto 0;
        }

        /* ========== STATS CARDS ========== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .stat-card {
            background: #fff;
            border-radius: var(--radius-md);
            padding: 28px 20px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-normal);
            border: 1px solid var(--border-light);
        }

        .stat-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
            border-color: var(--accent-green);
        }

        .stat-card .stat-icon {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: rgba(0, 200, 83, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 14px;
            color: var(--accent-green);
            font-size: 1.3rem;
        }

        .stat-card .stat-number {
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--text-dark);
            letter-spacing: -0.5px;
            margin-bottom: 4px;
        }

        .stat-card .stat-label {
            font-size: 0.85rem;
            color: var(--text-light);
            font-weight: 500;
        }

        /* ========== FEATURE CARDS ========== */
        .features-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr;
            gap: 24px;
        }

        .feature-card-large {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 36px 32px;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border-light);
            display: flex;
            gap: 28px;
            align-items: flex-start;
            transition: all var(--transition-normal);
        }

        .feature-card-large:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
        }

        .feature-card-large .feature-icon-wrap {
            flex-shrink: 0;
            width: 64px;
            height: 64px;
            border-radius: var(--radius-md);
            background: rgba(0, 200, 83, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-green);
            font-size: 1.6rem;
        }

        .feature-card-large .feature-content h3 {
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text-dark);
        }

        .feature-card-large .feature-content p {
            color: var(--text-medium);
            font-size: 0.95rem;
            line-height: 1.7;
            margin: 0;
        }

        .feature-cards-stack {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .feature-card-small {
            background: #fff;
            border-radius: var(--radius-md);
            padding: 22px 20px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            display: flex;
            gap: 16px;
            align-items: flex-start;
            transition: all var(--transition-normal);
        }

        .feature-card-small:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
            border-color: var(--accent-green);
        }

        .feature-card-small .feature-icon-sm {
            flex-shrink: 0;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: rgba(0, 200, 83, 0.06);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-green);
            font-size: 1.1rem;
        }

        .feature-card-small h4 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 4px;
            color: var(--text-dark);
        }

        .feature-card-small p {
            color: var(--text-medium);
            font-size: 0.85rem;
            line-height: 1.6;
            margin: 0;
        }

        /* ========== SCENE CARDS ========== */
        .scene-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
            margin-bottom: 40px;
        }

        .scene-block:last-child {
            margin-bottom: 0;
        }

        .scene-block.reverse {
            direction: rtl;
        }

        .scene-block.reverse .scene-text {
            direction: ltr;
        }

        .scene-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }

        .scene-image img {
            width: 100%;
            aspect-ratio: 16/10;
            object-fit: cover;
            border-radius: var(--radius-lg);
        }

        .scene-text h3 {
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--text-dark);
        }

        .scene-text p {
            color: var(--text-medium);
            line-height: 1.75;
            margin-bottom: 16px;
        }

        .scene-text .scene-list {
            list-style: none;
            padding: 0;
            margin: 0 0 16px;
        }

        .scene-text .scene-list li {
            padding: 6px 0 6px 24px;
            position: relative;
            color: var(--text-medium);
            font-size: 0.95rem;
        }

        .scene-text .scene-list li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 13px;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--accent-green);
        }

        .btn-text {
            display: inline-block;
            color: var(--accent-green);
            font-weight: 600;
            font-size: 0.95rem;
            transition: all var(--transition-fast);
            letter-spacing: 0.3px;
        }

        .btn-text:hover {
            color: var(--accent-green-hover);
            text-decoration: underline;
        }

        .btn-text i {
            margin-left: 6px;
            transition: transform var(--transition-fast);
        }

        .btn-text:hover i {
            transform: translateX(4px);
        }

        /* ========== PRODUCT CARDS GRID ========== */
        .product-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .product-card {
            background: #fff;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: all var(--transition-normal);
        }

        .product-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-6px);
        }

        .product-card .product-img {
            aspect-ratio: 16/10;
            overflow: hidden;
        }

        .product-card .product-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }

        .product-card:hover .product-img img {
            transform: scale(1.05);
        }

        .product-card .product-body {
            padding: 20px;
        }

        .product-card .product-body h4 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text-dark);
        }

        .product-card .product-body p {
            font-size: 0.9rem;
            color: var(--text-medium);
            line-height: 1.6;
            margin-bottom: 12px;
        }

        .product-card .product-tags {
            display: flex;
            gap: 6px;
            flex-wrap: wrap;
        }

        .product-tag {
            display: inline-block;
            padding: 3px 10px;
            background: rgba(0, 200, 83, 0.08);
            color: var(--accent-green);
            border-radius: 12px;
            font-size: 0.75rem;
            font-weight: 600;
        }

        /* ========== SOCIAL PROOF ========== */
        .partner-logos {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 28px;
            align-items: center;
        }

        .partner-logo-item {
            width: 100px;
            height: 44px;
            background: #eaeaea;
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.75rem;
            color: var(--text-muted);
            font-weight: 600;
            letter-spacing: 0.5px;
            transition: all var(--transition-fast);
            opacity: 0.7;
        }

        .partner-logo-item:hover {
            opacity: 1;
            background: #e0e0e0;
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background: #fff;
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            border: 1px solid var(--border-light);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
        }

        .faq-question {
            padding: 18px 24px;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-dark);
            transition: all var(--transition-fast);
            user-select: none;
            gap: 16px;
        }

        .faq-question:hover {
            color: var(--accent-green);
            background: #fafffa;
        }

        .faq-question .faq-arrow {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--card-bg-alt);
            display: flex;
            align-items: center;
            justify-content: center;
            transition: transform var(--transition-normal);
            font-size: 0.7rem;
            color: var(--text-light);
        }

        .faq-item.open .faq-question .faq-arrow {
            transform: rotate(180deg);
            background: var(--accent-green);
            color: #fff;
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
        }

        .faq-answer-inner {
            padding: 0 24px 20px;
            color: var(--text-medium);
            font-size: 0.95rem;
            line-height: 1.75;
        }

        /* ========== CTA STRIP ========== */
        .cta-strip {
            background: linear-gradient(135deg, #1a1a1a 0%, #1f2a1f 50%, #1a1a1a 100%);
            padding: var(--spacing-xl) 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-strip::before {
            content: '';
            position: absolute;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(0, 200, 83, 0.12) 0%, transparent 70%);
            top: -100px;
            right: -60px;
            border-radius: 50%;
        }

        .cta-strip-inner {
            position: relative;
            z-index: 1;
            max-width: 700px;
            margin: 0 auto;
            padding: 0 20px;
        }

        .cta-strip h2 {
            color: #fff;
            font-size: 1.8rem;
            font-weight: 700;
            margin-bottom: 10px;
        }

        .cta-strip p {
            color: #bbb;
            font-size: 1rem;
            margin-bottom: 24px;
        }

        .cta-strip .btn-primary {
            font-size: 1.05rem;
            padding: 16px 36px;
            letter-spacing: 0.5px;
        }

        /* ========== BOTTOM FIXED BAR ========== */
        .bottom-fixed-bar {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            background: rgba(26, 26, 26, 0.94);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            z-index: 999;
            padding: 14px 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            animation: slideUpBar 0.5s ease forwards;
        }

        @keyframes slideUpBar {
            from {
                transform: translateY(100%);
            }
            to {
                transform: translateY(0);
            }
        }

        .bottom-fixed-bar .bar-text {
            color: #fff;
            font-size: 0.95rem;
            font-weight: 500;
            letter-spacing: 0.3px;
        }

        .bottom-fixed-bar .btn-primary-sm {
            padding: 10px 24px;
            background: var(--accent-green);
            color: #fff;
            border-radius: 20px;
            font-weight: 600;
            font-size: 0.9rem;
            letter-spacing: 0.3px;
            transition: all var(--transition-fast);
            border: none;
            white-space: nowrap;
        }

        .bottom-fixed-bar .btn-primary-sm:hover {
            background: var(--accent-green-hover);
            box-shadow: 0 4px 16px rgba(0, 200, 83, 0.4);
            color: #fff;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--primary-dark);
            color: #bbb;
            padding: var(--spacing-xl) 0 var(--spacing-md);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px 32px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .footer-col h4 {
            color: #fff;
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 14px;
            letter-spacing: 0.3px;
        }

        .footer-col a {
            display: block;
            color: #999;
            font-size: 0.85rem;
            padding: 5px 0;
            transition: color var(--transition-fast);
        }

        .footer-col a:hover {
            color: var(--accent-green-glow);
        }

        .footer-bottom {
            text-align: center;
            padding: 20px;
            font-size: 0.8rem;
            color: #777;
            max-width: var(--max-width);
            margin: 0 auto;
        }

        .footer-bottom a {
            color: #999;
            transition: color var(--transition-fast);
        }

        .footer-bottom a:hover {
            color: var(--accent-green-glow);
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .hero-inner {
                grid-template-columns: 1fr;
                gap: 32px;
                text-align: center;
            }
            .hero-text h1 {
                font-size: 2.2rem;
            }
            .hero-text .hero-subtitle {
                max-width: 100%;
                margin-left: auto;
                margin-right: auto;
            }
            .hero-actions {
                justify-content: center;
            }
            .hero-visual {
                max-width: 500px;
                margin: 0 auto;
            }
            .features-grid {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .product-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .scene-block {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .scene-block.reverse {
                direction: ltr;
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .hero-text h1 {
                font-size: 1.7rem;
            }
            .hero-text .hero-subtitle {
                font-size: 0.95rem;
            }
            .hero-section {
                min-height: auto;
                padding: 40px 0;
            }
            .hero-inner {
                padding: 30px 16px;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .stat-card {
                padding: 20px 14px;
            }
            .stat-card .stat-number {
                font-size: 1.6rem;
            }
            .product-grid {
                grid-template-columns: 1fr;
            }
            .section {
                padding: var(--spacing-xl) 0;
            }
            .section-header h2 {
                font-size: 1.5rem;
            }
            .feature-card-large {
                flex-direction: column;
                padding: 24px 20px;
            }
            .bottom-fixed-bar {
                flex-direction: column;
                gap: 10px;
                text-align: center;
                padding: 12px 16px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
            .brand-actions .member-btn {
                padding: 6px 12px;
                font-size: 0.75rem;
            }
            .channel-nav a {
                padding: 10px 12px;
                font-size: 0.8rem;
            }
            .cta-strip h2 {
                font-size: 1.4rem;
            }
        }

        @media (max-width: 520px) {
            .hero-text h1 {
                font-size: 1.4rem;
            }
            .hero-text .hero-subtitle {
                font-size: 0.85rem;
            }
            .stats-grid {
                grid-template-columns: 1fr;
                gap: 10px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .brand-logo {
                font-size: 1.2rem;
            }
            .brand-actions {
                gap: 8px;
            }
            .btn-primary,
            .btn-outline-light {
                padding: 10px 20px;
                font-size: 0.9rem;
            }
            .hero-actions {
                flex-direction: column;
                align-items: center;
            }
            .partner-logos {
                gap: 16px;
            }
            .partner-logo-item {
                width: 70px;
                height: 34px;
                font-size: 0.65rem;
            }
        }

/* roulang page: category3 */
:root {
            --primary-dark: #1A1A1A;
            --primary-dark-light: #222222;
            --accent-green: #00C853;
            --accent-green-hover: #00B34A;
            --accent-green-glow: #00E676;
            --card-bg: #FFFFFF;
            --card-bg-alt: #F5F5F5;
            --card-bg-warm: #FAFAFA;
            --text-dark: #2C2C2C;
            --text-medium: #555555;
            --text-light: #888888;
            --text-muted: #AAAAAA;
            --border-color: #E8E8E8;
            --border-light: #F0F0F0;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 2px 12px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 4px 24px rgba(0, 0, 0, 0.12);
            --shadow-xl: 0 8px 40px rgba(0, 0, 0, 0.16);
            --radius-sm: 4px;
            --radius-md: 8px;
            --radius-lg: 12px;
            --radius-xl: 16px;
            --spacing-xs: 8px;
            --spacing-sm: 16px;
            --spacing-md: 24px;
            --spacing-lg: 40px;
            --spacing-xl: 56px;
            --spacing-2xl: 72px;
            --transition-fast: 0.15s ease;
            --transition-normal: 0.25s ease;
            --transition-slow: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            --font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --max-width: 1200px;
        }

        html {
            scroll-behavior: smooth;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-family);
            line-height: 1.7;
            color: var(--text-dark);
            background-color: #FAFAFA;
            overflow-x: hidden;
            padding-bottom: 70px;
            margin: 0;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }

        button {
            cursor: pointer;
            font-family: inherit;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            margin: 0;
            line-height: 1.3;
            font-weight: 700;
            color: var(--text-dark);
        }

        p {
            margin: 0 0 1rem;
        }

        ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
        }
        .container-wide {
            max-width: 1320px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .container-narrow {
            max-width: 900px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* ========== HEADER & NAVIGATION ========== */
        .site-header {
            background: #fff;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 1px 0 var(--border-light);
        }
        .brand-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 14px 20px;
            max-width: var(--max-width);
            margin: 0 auto;
        }
        .brand-logo {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--primary-dark);
            letter-spacing: 0.5px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .brand-logo .logo-icon {
            width: 34px;
            height: 34px;
            background: var(--accent-green);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1rem;
            font-weight: 700;
        }
        .brand-actions {
            display: flex;
            align-items: center;
            gap: 16px;
        }
        .brand-actions .icon-btn {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            border: 1px solid var(--border-color);
            background: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-medium);
            transition: all var(--transition-fast);
            font-size: 0.9rem;
            cursor: pointer;
        }
        .brand-actions .icon-btn:hover {
            border-color: var(--accent-green);
            color: var(--accent-green);
            background: #f9fff9;
        }
        .brand-actions .member-btn {
            padding: 8px 18px;
            border-radius: 20px;
            border: 1.5px solid var(--accent-green);
            background: #fff;
            color: var(--accent-green);
            font-size: 0.85rem;
            font-weight: 600;
            transition: all var(--transition-fast);
            white-space: nowrap;
            cursor: pointer;
        }
        .brand-actions .member-btn:hover {
            background: var(--accent-green);
            color: #fff;
        }
        .channel-row {
            background: var(--primary-dark);
            padding: 0;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
        }
        .channel-row::-webkit-scrollbar {
            height: 0;
        }
        .channel-nav {
            display: flex;
            align-items: center;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
            gap: 0;
            flex-wrap: nowrap;
            min-width: max-content;
        }
        .channel-nav a {
            display: block;
            padding: 13px 18px;
            color: #ccc;
            font-size: 0.9rem;
            font-weight: 500;
            white-space: nowrap;
            transition: all var(--transition-fast);
            border-bottom: 3px solid transparent;
            letter-spacing: 0.3px;
        }
        .channel-nav a:hover {
            color: #fff;
            border-bottom-color: rgba(255, 255, 255, 0.3);
        }
        .channel-nav a.active {
            color: #fff;
            border-bottom-color: var(--accent-green);
            font-weight: 600;
        }

        /* ========== SECTION BASE ========== */
        .section {
            padding: var(--spacing-xl) 0;
        }
        .section-sm {
            padding: var(--spacing-lg) 0;
        }
        .section-lg {
            padding: var(--spacing-2xl) 0;
        }
        .section-dark {
            background: var(--primary-dark);
            color: #e0e0e0;
        }
        .section-dark h2,
        .section-dark h3 {
            color: #fff;
        }
        .section-alt {
            background: var(--card-bg-alt);
        }
        .section-white {
            background: #fff;
        }

        /* ========== CATEGORY HERO ========== */
        .category-hero {
            position: relative;
            background: var(--primary-dark);
            min-height: 420px;
            display: flex;
            align-items: center;
            overflow: hidden;
        }
        .category-hero .hero-bg {
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
            opacity: 0.35;
            z-index: 0;
        }
        .category-hero .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(26, 26, 26, 0.85) 0%, rgba(26, 26, 26, 0.5) 60%, rgba(0, 200, 83, 0.15) 100%);
            z-index: 1;
        }
        .category-hero .hero-content {
            position: relative;
            z-index: 2;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
            width: 100%;
        }
        .category-hero .hero-badge {
            display: inline-block;
            background: var(--accent-green);
            color: #fff;
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 1px;
            margin-bottom: 16px;
        }
        .category-hero h1 {
            font-size: 3rem;
            color: #fff;
            margin-bottom: 16px;
            font-weight: 700;
            letter-spacing: 0.5px;
        }
        .category-hero .hero-subtitle {
            font-size: 1.15rem;
            color: #ccc;
            max-width: 600px;
            line-height: 1.8;
            margin-bottom: 24px;
        }
        .category-hero .hero-stats {
            display: flex;
            gap: 32px;
            flex-wrap: wrap;
        }
        .category-hero .hero-stat {
            text-align: left;
        }
        .category-hero .hero-stat .stat-num {
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--accent-green-glow);
            line-height: 1;
        }
        .category-hero .hero-stat .stat-label {
            font-size: 0.8rem;
            color: #aaa;
            margin-top: 4px;
        }

        /* ========== BUTTONS ========== */
        .btn {
            display: inline-block;
            padding: 12px 24px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.95rem;
            letter-spacing: 0.3px;
            transition: all var(--transition-normal);
            cursor: pointer;
            border: none;
            text-align: center;
            white-space: nowrap;
        }
        .btn-primary {
            background: var(--accent-green);
            color: #fff;
            box-shadow: 0 4px 16px rgba(0, 200, 83, 0.3);
        }
        .btn-primary:hover {
            background: var(--accent-green-hover);
            box-shadow: 0 6px 24px rgba(0, 200, 83, 0.4);
            transform: translateY(-2px);
            color: #fff;
        }
        .btn-outline {
            background: transparent;
            color: #fff;
            border: 2px solid #fff;
        }
        .btn-outline:hover {
            background: #fff;
            color: var(--primary-dark);
            transform: translateY(-2px);
        }
        .btn-outline-dark {
            background: transparent;
            color: var(--primary-dark);
            border: 2px solid var(--primary-dark);
        }
        .btn-outline-dark:hover {
            background: var(--primary-dark);
            color: #fff;
            transform: translateY(-2px);
        }
        .btn-sm {
            padding: 8px 16px;
            font-size: 0.8rem;
            border-radius: var(--radius-sm);
        }
        .btn-lg {
            padding: 16px 32px;
            font-size: 1.1rem;
            border-radius: var(--radius-md);
        }

        /* ========== CARDS ========== */
        .card {
            background: var(--card-bg);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: all var(--transition-normal);
            border: 1px solid var(--border-light);
        }
        .card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
        }
        .card .card-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            display: block;
        }
        .card .card-body {
            padding: 20px;
        }
        .card .card-tag {
            display: inline-block;
            background: #e8f5e9;
            color: var(--accent-green-hover);
            padding: 3px 10px;
            border-radius: 12px;
            font-size: 0.75rem;
            font-weight: 600;
            margin-bottom: 8px;
        }
        .card .card-title {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text-dark);
            line-height: 1.4;
        }
        .card .card-desc {
            font-size: 0.85rem;
            color: var(--text-medium);
            line-height: 1.6;
            margin-bottom: 12px;
        }
        .card .card-meta {
            font-size: 0.75rem;
            color: var(--text-muted);
        }
        .card .card-link {
            color: var(--accent-green);
            font-weight: 600;
            font-size: 0.85rem;
            transition: all var(--transition-fast);
        }
        .card .card-link:hover {
            color: var(--accent-green-hover);
            text-decoration: underline;
        }

        /* ========== NEWS LIST ========== */
        .news-list-item {
            display: flex;
            gap: 20px;
            padding: 20px 0;
            border-bottom: 1px solid var(--border-light);
            transition: all var(--transition-fast);
            align-items: flex-start;
        }
        .news-list-item:hover {
            background: #fafafa;
            padding-left: 12px;
            border-radius: var(--radius-sm);
        }
        .news-list-item .news-date {
            min-width: 70px;
            padding: 8px 12px;
            background: var(--primary-dark);
            color: #fff;
            border-radius: var(--radius-sm);
            text-align: center;
            font-size: 0.8rem;
            font-weight: 600;
            line-height: 1.3;
            flex-shrink: 0;
        }
        .news-list-item .news-date .day {
            font-size: 1.5rem;
            display: block;
            line-height: 1;
        }
        .news-list-item .news-info {
            flex: 1;
        }
        .news-list-item .news-title {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 6px;
            line-height: 1.4;
        }
        .news-list-item .news-summary {
            font-size: 0.85rem;
            color: var(--text-medium);
            line-height: 1.6;
            margin-bottom: 8px;
        }
        .news-list-item .news-link {
            font-size: 0.8rem;
            color: var(--accent-green);
            font-weight: 600;
        }
        .news-list-item .news-link:hover {
            color: var(--accent-green-hover);
        }

        /* ========== RANKING TABLE ========== */
        .ranking-table-wrap {
            overflow-x: auto;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-md);
            background: #fff;
        }
        .ranking-table {
            width: 100%;
            border-collapse: collapse;
            min-width: 600px;
        }
        .ranking-table th {
            background: var(--primary-dark);
            color: #fff;
            padding: 14px 16px;
            font-size: 0.8rem;
            font-weight: 600;
            text-align: left;
            letter-spacing: 0.5px;
            white-space: nowrap;
        }
        .ranking-table td {
            padding: 12px 16px;
            border-bottom: 1px solid var(--border-light);
            font-size: 0.9rem;
            color: var(--text-dark);
        }
        .ranking-table tbody tr {
            transition: background var(--transition-fast);
        }
        .ranking-table tbody tr:hover {
            background: #f9fff9;
        }
        .ranking-table .rank-badge {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 30px;
            height: 30px;
            border-radius: 50%;
            font-weight: 700;
            font-size: 0.85rem;
        }
        .rank-1 {
            background: #FFD700;
            color: #333;
        }
        .rank-2 {
            background: #C0C0C0;
            color: #333;
        }
        .rank-3 {
            background: #CD7F32;
            color: #fff;
        }
        .rank-other {
            background: #eee;
            color: #666;
        }
        .ranking-table .trend-up {
            color: #00C853;
            font-weight: 600;
        }
        .ranking-table .trend-down {
            color: #e53935;
            font-weight: 600;
        }
        .ranking-table .trend-stable {
            color: #888;
        }

        /* ========== FEATURE BLOCK ========== */
        .feature-block {
            display: flex;
            align-items: center;
            gap: var(--spacing-lg);
            flex-wrap: wrap;
        }
        .feature-block.reverse {
            flex-direction: row-reverse;
        }
        .feature-block .feature-img-wrap {
            flex: 1 1 45%;
            min-width: 300px;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }
        .feature-block .feature-img-wrap img {
            width: 100%;
            height: 380px;
            object-fit: cover;
            display: block;
        }
        .feature-block .feature-text {
            flex: 1 1 45%;
            min-width: 300px;
        }
        .feature-block .feature-label {
            display: inline-block;
            color: var(--accent-green);
            font-weight: 600;
            font-size: 0.8rem;
            letter-spacing: 1px;
            margin-bottom: 8px;
            text-transform: uppercase;
        }
        .feature-block h3 {
            font-size: 1.6rem;
            margin-bottom: 12px;
            font-weight: 700;
        }
        .feature-block p {
            color: var(--text-medium);
            line-height: 1.8;
            margin-bottom: 16px;
        }

        /* ========== FAQ ========== */
        .faq-item {
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            overflow: hidden;
            background: #fff;
            transition: all var(--transition-normal);
        }
        .faq-item:hover {
            box-shadow: var(--shadow-sm);
        }
        .faq-question {
            padding: 18px 24px;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-dark);
            background: #fff;
            transition: background var(--transition-fast);
            user-select: none;
            gap: 16px;
        }
        .faq-question:hover {
            background: #fafafa;
        }
        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--card-bg-alt);
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all var(--transition-normal);
            font-size: 0.75rem;
            color: var(--text-medium);
        }
        .faq-item.open .faq-icon {
            background: var(--accent-green);
            color: #fff;
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-slow);
            padding: 0 24px;
            color: var(--text-medium);
            line-height: 1.8;
            font-size: 0.9rem;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 24px 20px;
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary-dark) 0%, #1a2e1a 100%);
            padding: var(--spacing-xl) 0;
            text-align: center;
            border-radius: var(--radius-lg);
            margin: var(--spacing-lg) 20px;
        }
        .cta-section h2 {
            color: #fff;
            font-size: 1.8rem;
            margin-bottom: 12px;
        }
        .cta-section p {
            color: #ccc;
            font-size: 1rem;
            margin-bottom: 24px;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
        }
        .cta-section .btn-primary {
            font-size: 1.1rem;
            padding: 16px 36px;
        }

        /* ========== BOTTOM STICKY BAR ========== */
        .bottom-sticky-bar {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            background: rgba(26, 26, 26, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            z-index: 999;
            padding: 14px 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 20px;
            flex-wrap: wrap;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
        }
        .bottom-sticky-bar .sticky-text {
            color: #fff;
            font-size: 0.95rem;
            font-weight: 500;
        }
        .bottom-sticky-bar .btn-primary {
            box-shadow: 0 4px 20px rgba(0, 200, 83, 0.5);
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--primary-dark);
            color: #bbb;
            padding: var(--spacing-xl) 20px var(--spacing-md);
            margin-top: var(--spacing-xl);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            max-width: var(--max-width);
            margin: 0 auto;
            padding-bottom: var(--spacing-lg);
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }
        .footer-col h4 {
            color: #fff;
            font-size: 0.95rem;
            font-weight: 600;
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }
        .footer-col a {
            display: block;
            color: #999;
            font-size: 0.85rem;
            padding: 5px 0;
            transition: color var(--transition-fast);
        }
        .footer-col a:hover {
            color: var(--accent-green-glow);
        }
        .footer-bottom {
            max-width: var(--max-width);
            margin: 0 auto;
            padding-top: var(--spacing-md);
            text-align: center;
            font-size: 0.78rem;
            color: #777;
        }
        .footer-bottom a {
            color: #999;
            transition: color var(--transition-fast);
        }
        .footer-bottom a:hover {
            color: var(--accent-green-glow);
        }
        .footer-bottom p {
            margin-bottom: 4px;
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .category-hero h1 {
                font-size: 2.2rem;
            }
            .category-hero .hero-stats {
                gap: 20px;
            }
            .category-hero .hero-stat .stat-num {
                font-size: 1.6rem;
            }
            .feature-block {
                flex-direction: column !important;
                gap: 24px;
            }
            .feature-block .feature-img-wrap img {
                height: 260px;
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }
            .section {
                padding: var(--spacing-lg) 0;
            }
            .cta-section {
                margin: var(--spacing-md) 16px;
                padding: var(--spacing-lg) 20px;
            }
        }

        @media (max-width: 768px) {
            .category-hero {
                min-height: 320px;
            }
            .category-hero h1 {
                font-size: 1.7rem;
            }
            .category-hero .hero-subtitle {
                font-size: 0.9rem;
            }
            .category-hero .hero-stats {
                gap: 16px;
            }
            .category-hero .hero-stat .stat-num {
                font-size: 1.3rem;
            }
            .news-list-item {
                flex-direction: column;
                gap: 10px;
                padding: 16px 0;
            }
            .news-list-item .news-date {
                min-width: auto;
                display: inline-flex;
                gap: 4px;
                padding: 6px 12px;
                font-size: 0.75rem;
            }
            .news-list-item .news-date .day {
                font-size: 1rem;
            }
            .card .card-img {
                height: 160px;
            }
            .bottom-sticky-bar {
                flex-direction: column;
                text-align: center;
                gap: 10px;
                padding: 12px 16px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
            .brand-row {
                padding: 10px 16px;
            }
            .brand-logo {
                font-size: 1.2rem;
            }
            .brand-actions .member-btn {
                font-size: 0.75rem;
                padding: 6px 12px;
            }
            .channel-nav a {
                padding: 10px 12px;
                font-size: 0.78rem;
            }
            .ranking-table {
                min-width: 500px;
            }
            .ranking-table th,
            .ranking-table td {
                padding: 10px 12px;
                font-size: 0.78rem;
            }
            .faq-question {
                padding: 14px 18px;
                font-size: 0.9rem;
            }
            .cta-section h2 {
                font-size: 1.4rem;
            }
        }

        @media (max-width: 520px) {
            .category-hero {
                min-height: 280px;
            }
            .category-hero h1 {
                font-size: 1.4rem;
            }
            .category-hero .hero-subtitle {
                font-size: 0.8rem;
            }
            .category-hero .hero-stats {
                gap: 12px;
            }
            .category-hero .hero-stat .stat-num {
                font-size: 1.1rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .card .card-img {
                height: 140px;
            }
            .btn-lg {
                padding: 12px 24px;
                font-size: 0.95rem;
            }
            .feature-block .feature-img-wrap img {
                height: 200px;
            }
            .section {
                padding: var(--spacing-md) 0;
            }
            .cta-section {
                margin: var(--spacing-sm) 10px;
                padding: var(--spacing-md) 16px;
                border-radius: var(--radius-md);
            }
        }

        /* ========== ANIMATIONS ========== */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(20px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        .animate-fade-in {
            animation: fadeInUp 0.5s ease forwards;
        }
        .delay-1 {
            animation-delay: 0.1s;
        }
        .delay-2 {
            animation-delay: 0.2s;
        }
        .delay-3 {
            animation-delay: 0.3s;
        }

        /* ========== TAG / BADGE ========== */
        .tag {
            display: inline-block;
            padding: 4px 12px;
            border-radius: 14px;
            font-size: 0.75rem;
            font-weight: 600;
            letter-spacing: 0.3px;
        }
        .tag-green {
            background: #e8f5e9;
            color: #00B34A;
        }
        .tag-dark {
            background: #333;
            color: #fff;
        }
        .tag-outline {
            background: transparent;
            border: 1px solid var(--border-color);
            color: var(--text-medium);
        }

        /* ========== DIVIDER ========== */
        .divider {
            height: 1px;
            background: var(--border-light);
            margin: var(--spacing-lg) 0;
        }
        .divider-accent {
            height: 3px;
            width: 50px;
            background: var(--accent-green);
            border-radius: 2px;
            margin: 12px 0 20px;
        }

/* roulang page: category4 */
:root {
            --primary-dark: #1A1A1A;
            --primary-dark-light: #222222;
            --accent-green: #00C853;
            --accent-green-hover: #00B34A;
            --accent-green-glow: #00E676;
            --card-bg: #FFFFFF;
            --card-bg-alt: #F5F5F5;
            --card-bg-warm: #FAFAFA;
            --text-dark: #2C2C2C;
            --text-medium: #555555;
            --text-light: #888888;
            --text-muted: #AAAAAA;
            --border-color: #E8E8E8;
            --border-light: #F0F0F0;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 2px 12px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 4px 24px rgba(0, 0, 0, 0.12);
            --shadow-xl: 0 8px 40px rgba(0, 0, 0, 0.16);
            --radius-sm: 4px;
            --radius-md: 8px;
            --radius-lg: 12px;
            --radius-xl: 16px;
            --spacing-xs: 8px;
            --spacing-sm: 16px;
            --spacing-md: 24px;
            --spacing-lg: 40px;
            --spacing-xl: 56px;
            --spacing-2xl: 72px;
            --transition-fast: 0.15s ease;
            --transition-normal: 0.25s ease;
            --transition-slow: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            --font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --max-width: 1200px;
        }

        html {
            scroll-behavior: smooth;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-family);
            line-height: 1.7;
            color: var(--text-dark);
            background-color: #FAFAFA;
            overflow-x: hidden;
            padding-bottom: 70px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }

        button {
            cursor: pointer;
            font-family: inherit;
        }

        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
        }
        .container-wide {
            max-width: 1320px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .container-narrow {
            max-width: 900px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* ========== HEADER ========== */
        .site-header {
            background: #fff;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 1px 0 var(--border-light);
        }
        .brand-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 14px 20px;
            max-width: var(--max-width);
            margin: 0 auto;
        }
        .brand-logo {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--primary-dark);
            letter-spacing: 0.5px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .brand-logo .logo-icon {
            width: 34px;
            height: 34px;
            background: var(--accent-green);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1rem;
            font-weight: 700;
        }
        .brand-actions {
            display: flex;
            align-items: center;
            gap: 16px;
        }
        .brand-actions .icon-btn {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            border: 1px solid var(--border-color);
            background: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-medium);
            transition: all var(--transition-fast);
            font-size: 0.9rem;
        }
        .brand-actions .icon-btn:hover {
            border-color: var(--accent-green);
            color: var(--accent-green);
            background: #f9fff9;
        }
        .brand-actions .member-btn {
            padding: 8px 18px;
            border-radius: 20px;
            border: 1.5px solid var(--accent-green);
            background: #fff;
            color: var(--accent-green);
            font-size: 0.85rem;
            font-weight: 600;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .brand-actions .member-btn:hover {
            background: var(--accent-green);
            color: #fff;
        }
        .channel-row {
            background: var(--primary-dark);
            padding: 0;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
        }
        .channel-row::-webkit-scrollbar {
            height: 0;
        }
        .channel-nav {
            display: flex;
            align-items: center;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
            gap: 0;
            flex-wrap: nowrap;
            min-width: max-content;
        }
        .channel-nav a {
            display: block;
            padding: 13px 18px;
            color: #ccc;
            font-size: 0.9rem;
            font-weight: 500;
            white-space: nowrap;
            transition: all var(--transition-fast);
            border-bottom: 3px solid transparent;
            letter-spacing: 0.3px;
        }
        .channel-nav a:hover {
            color: #fff;
            border-bottom-color: rgba(255, 255, 255, 0.3);
        }
        .channel-nav a.active {
            color: #fff;
            border-bottom-color: var(--accent-green);
            background: rgba(255, 255, 255, 0.04);
        }

        /* ========== HERO ========== */
        .category-hero {
            background: var(--primary-dark);
            position: relative;
            overflow: hidden;
            min-height: 520px;
            display: flex;
            align-items: center;
        }
        .category-hero::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -80px;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(0, 200, 83, 0.12) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .category-hero::after {
            content: '';
            position: absolute;
            bottom: -40px;
            left: -60px;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(0, 230, 118, 0.08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .hero-inner {
            display: flex;
            align-items: center;
            gap: 48px;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 60px 20px;
            position: relative;
            z-index: 1;
            width: 100%;
        }
        .hero-text {
            flex: 0 0 42%;
        }
        .hero-badge {
            display: inline-block;
            padding: 6px 14px;
            background: rgba(0, 200, 83, 0.15);
            color: var(--accent-green-glow);
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.5px;
            margin-bottom: 16px;
            border: 1px solid rgba(0, 200, 83, 0.25);
        }
        .hero-text h1 {
            font-size: 2.8rem;
            font-weight: 700;
            color: #fff;
            line-height: 1.25;
            margin-bottom: 16px;
            letter-spacing: -0.5px;
        }
        .hero-text h1 .highlight {
            color: var(--accent-green-glow);
            position: relative;
        }
        .hero-text .hero-subtitle {
            font-size: 1.1rem;
            color: #bbb;
            line-height: 1.7;
            margin-bottom: 28px;
            max-width: 440px;
        }
        .hero-cta-group {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            align-items: center;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 28px;
            background: var(--accent-green);
            color: #fff;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 1rem;
            border: none;
            transition: all var(--transition-normal);
            letter-spacing: 0.3px;
            white-space: nowrap;
        }
        .btn-primary:hover {
            background: var(--accent-green-hover);
            box-shadow: 0 6px 24px rgba(0, 200, 83, 0.35);
            transform: translateY(-2px);
            color: #fff;
        }
        .btn-outline-light {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 26px;
            background: transparent;
            color: #fff;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 1rem;
            border: 1.5px solid rgba(255, 255, 255, 0.35);
            transition: all var(--transition-normal);
            white-space: nowrap;
        }
        .btn-outline-light:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.06);
            color: #fff;
        }
        .hero-visual {
            flex: 0 0 50%;
            position: relative;
            margin-left: auto;
        }
        .hero-visual .visual-frame {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-xl);
            transform: rotate(-1.5deg);
            transition: transform var(--transition-slow);
            position: relative;
            z-index: 2;
        }
        .hero-visual .visual-frame:hover {
            transform: rotate(0deg);
        }
        .hero-visual .visual-frame img {
            width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-lg);
        }
        .hero-visual .visual-accent {
            position: absolute;
            top: 20px;
            left: -16px;
            width: 100%;
            height: 100%;
            border: 2px solid var(--accent-green);
            border-radius: var(--radius-lg);
            z-index: 1;
            opacity: 0.5;
            transform: rotate(2deg);
        }
        .hero-kpi-row {
            display: flex;
            gap: 28px;
            margin-top: 20px;
            flex-wrap: wrap;
        }
        .hero-kpi {
            text-align: left;
        }
        .hero-kpi .kpi-num {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--accent-green-glow);
            line-height: 1;
        }
        .hero-kpi .kpi-label {
            font-size: 0.8rem;
            color: #999;
            margin-top: 4px;
        }

        /* ========== SECTIONS ========== */
        .section {
            padding: var(--spacing-xl) 0;
        }
        .section-sm {
            padding: var(--spacing-lg) 0;
        }
        .section-dark {
            background: var(--primary-dark);
            color: #fff;
        }
        .section-alt {
            background: #f0f2f0;
        }
        .section-white {
            background: #fff;
        }
        .section-label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--accent-green);
            letter-spacing: 1px;
            text-transform: uppercase;
            margin-bottom: 8px;
        }
        .section-title {
            font-size: 2rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 12px;
            line-height: 1.3;
            letter-spacing: -0.3px;
        }
        .section-dark .section-title {
            color: #fff;
        }
        .section-desc {
            font-size: 1.05rem;
            color: var(--text-medium);
            line-height: 1.7;
            max-width: 640px;
            margin-bottom: 32px;
        }
        .section-dark .section-desc {
            color: #bbb;
        }

        /* ========== CARDS ========== */
        .card {
            background: var(--card-bg);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-md);
            transition: all var(--transition-normal);
            overflow: hidden;
        }
        .card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
        }
        .card-body {
            padding: 24px;
        }
        .card-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            border-radius: var(--radius-md) var(--radius-md) 0 0;
        }
        .card-tag {
            display: inline-block;
            padding: 4px 10px;
            background: rgba(0, 200, 83, 0.1);
            color: var(--accent-green);
            border-radius: 12px;
            font-size: 0.75rem;
            font-weight: 600;
            margin-bottom: 10px;
        }
        .card-title {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .card-desc {
            font-size: 0.9rem;
            color: var(--text-medium);
            line-height: 1.6;
        }

        /* ========== FEATURE GRID ========== */
        .feature-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
        }
        .feature-item {
            display: flex;
            gap: 18px;
            align-items: flex-start;
            padding: 20px;
            background: #fff;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-normal);
            border-left: 3px solid transparent;
        }
        .feature-item:hover {
            box-shadow: var(--shadow-md);
            border-left-color: var(--accent-green);
            transform: translateX(3px);
        }
        .feature-icon {
            flex-shrink: 0;
            width: 48px;
            height: 48px;
            border-radius: var(--radius-sm);
            background: rgba(0, 200, 83, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-green);
            font-size: 1.3rem;
        }
        .feature-content h4 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 4px;
        }
        .feature-content p {
            font-size: 0.9rem;
            color: var(--text-medium);
            line-height: 1.6;
            margin: 0;
        }

        /* ========== SCENE BLOCK ========== */
        .scene-block {
            display: flex;
            align-items: center;
            gap: 48px;
            margin-bottom: 48px;
        }
        .scene-block.reverse {
            flex-direction: row-reverse;
        }
        .scene-block:last-child {
            margin-bottom: 0;
        }
        .scene-img {
            flex: 0 0 48%;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }
        .scene-img img {
            width: 100%;
            height: auto;
            display: block;
        }
        .scene-text {
            flex: 1;
        }
        .scene-text h3 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 12px;
            line-height: 1.3;
        }
        .scene-text p {
            font-size: 1rem;
            color: var(--text-medium);
            line-height: 1.8;
            margin-bottom: 16px;
        }
        .scene-text .scene-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .scene-text .scene-list li {
            padding: 6px 0;
            padding-left: 22px;
            position: relative;
            font-size: 0.95rem;
            color: var(--text-medium);
        }
        .scene-text .scene-list li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 13px;
            width: 8px;
            height: 8px;
            background: var(--accent-green);
            border-radius: 50%;
        }

        /* ========== STATS ROW ========== */
        .stats-row {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
            justify-content: center;
        }
        .stat-card {
            flex: 1 1 180px;
            max-width: 220px;
            text-align: center;
            padding: 28px 20px;
            background: #fff;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-normal);
        }
        .stat-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
        }
        .stat-num {
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--accent-green);
            line-height: 1;
        }
        .stat-label {
            font-size: 0.85rem;
            color: var(--text-light);
            margin-top: 8px;
        }

        /* ========== TESTIMONIAL ========== */
        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .testimonial-card {
            background: #fff;
            border-radius: var(--radius-md);
            padding: 24px;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-normal);
            border-top: 3px solid var(--accent-green);
        }
        .testimonial-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
        }
        .testimonial-card .quote {
            font-size: 0.95rem;
            color: var(--text-medium);
            line-height: 1.7;
            font-style: italic;
            margin-bottom: 16px;
            position: relative;
            padding-left: 20px;
        }
        .testimonial-card .quote::before {
            content: '"';
            position: absolute;
            left: 0;
            top: -4px;
            font-size: 2rem;
            color: var(--accent-green);
            font-style: normal;
            line-height: 1;
        }
        .testimonial-card .author {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--text-dark);
        }
        .testimonial-card .author-role {
            font-size: 0.75rem;
            color: var(--text-muted);
        }

        /* ========== FAQ ========== */
        .faq-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .faq-item {
            border-bottom: 1px solid var(--border-light);
            padding: 0;
        }
        .faq-question {
            width: 100%;
            text-align: left;
            padding: 18px 20px;
            background: #fff;
            border: none;
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-dark);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            transition: all var(--transition-fast);
            gap: 12px;
            line-height: 1.4;
        }
        .faq-question:hover {
            background: #f9fff9;
            color: var(--accent-green);
        }
        .faq-question .faq-arrow {
            flex-shrink: 0;
            transition: transform var(--transition-normal);
            color: var(--text-muted);
            font-size: 0.8rem;
        }
        .faq-item.open .faq-question .faq-arrow {
            transform: rotate(180deg);
            color: var(--accent-green);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-normal);
            padding: 0 20px;
            background: #fafafa;
            font-size: 0.95rem;
            color: var(--text-medium);
            line-height: 1.7;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 16px 20px;
        }

        /* ========== CTA BAR ========== */
        .cta-bar-fixed {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 999;
            background: rgba(26, 26, 26, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            padding: 14px 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 20px;
            flex-wrap: wrap;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
        }
        .cta-bar-fixed .cta-text {
            color: #ddd;
            font-size: 0.95rem;
            font-weight: 500;
            letter-spacing: 0.3px;
            text-align: center;
        }
        .cta-bar-fixed .btn-primary {
            padding: 12px 24px;
            font-size: 0.9rem;
            border-radius: 20px;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--primary-dark);
            color: #ccc;
            padding: 48px 0 24px;
            margin-top: 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
        }
        .footer-col h4 {
            color: #fff;
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 16px;
            letter-spacing: 0.3px;
        }
        .footer-col a {
            display: block;
            color: #aaa;
            font-size: 0.85rem;
            padding: 4px 0;
            transition: color var(--transition-fast);
            line-height: 1.8;
        }
        .footer-col a:hover {
            color: var(--accent-green-glow);
        }
        .footer-bottom {
            max-width: var(--max-width);
            margin: 32px auto 0;
            padding: 20px 20px 0;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            text-align: center;
            font-size: 0.8rem;
            color: #888;
        }
        .footer-bottom a {
            color: #aaa;
            transition: color var(--transition-fast);
        }
        .footer-bottom a:hover {
            color: var(--accent-green-glow);
        }
        .footer-bottom p {
            margin: 4px 0;
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .hero-inner {
                flex-direction: column;
                gap: 32px;
                padding: 40px 20px;
            }
            .hero-text {
                flex: 0 0 100%;
                text-align: center;
            }
            .hero-text .hero-subtitle {
                max-width: 100%;
                margin-left: auto;
                margin-right: auto;
            }
            .hero-cta-group {
                justify-content: center;
            }
            .hero-visual {
                flex: 0 0 100%;
                max-width: 500px;
                margin: 0 auto;
            }
            .hero-kpi-row {
                justify-content: center;
            }
            .hero-text h1 {
                font-size: 2.2rem;
            }
            .feature-grid {
                grid-template-columns: 1fr;
            }
            .scene-block {
                flex-direction: column !important;
                gap: 24px;
            }
            .scene-img {
                flex: 0 0 100%;
                max-width: 100%;
            }
            .testimonial-grid {
                grid-template-columns: 1fr 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .section-title {
                font-size: 1.6rem;
            }
            .stats-row {
                gap: 12px;
            }
            .stat-card {
                flex: 1 1 140px;
                max-width: 160px;
                padding: 20px 14px;
            }
            .stat-num {
                font-size: 1.6rem;
            }
        }
        @media (max-width: 768px) {
            .hero-text h1 {
                font-size: 1.7rem;
            }
            .hero-text .hero-subtitle {
                font-size: 0.95rem;
            }
            .hero-visual .visual-accent {
                display: none;
            }
            .hero-visual .visual-frame {
                transform: none;
            }
            .testimonial-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .cta-bar-fixed {
                flex-direction: column;
                gap: 10px;
                padding: 12px 16px;
                text-align: center;
            }
            .cta-bar-fixed .cta-text {
                font-size: 0.85rem;
            }
            .section {
                padding: var(--spacing-lg) 0;
            }
            .section-title {
                font-size: 1.4rem;
            }
            .feature-item {
                padding: 14px;
                gap: 12px;
            }
            .feature-icon {
                width: 40px;
                height: 40px;
                font-size: 1.1rem;
            }
            .stats-row {
                gap: 8px;
            }
            .stat-card {
                flex: 1 1 100px;
                max-width: 130px;
                padding: 16px 10px;
            }
            .stat-num {
                font-size: 1.4rem;
            }
            .stat-label {
                font-size: 0.75rem;
            }
            .brand-actions .member-btn {
                padding: 6px 12px;
                font-size: 0.75rem;
            }
            .brand-logo {
                font-size: 1.2rem;
            }
            .channel-nav a {
                padding: 10px 12px;
                font-size: 0.8rem;
            }
            .category-hero {
                min-height: auto;
            }
        }
        @media (max-width: 520px) {
            .hero-text h1 {
                font-size: 1.5rem;
            }
            .hero-badge {
                font-size: 0.7rem;
                padding: 4px 10px;
            }
            .btn-primary,
            .btn-outline-light {
                padding: 10px 18px;
                font-size: 0.85rem;
            }
            .hero-kpi-row {
                gap: 16px;
            }
            .hero-kpi .kpi-num {
                font-size: 1.3rem;
            }
            .stats-row {
                flex-wrap: wrap;
            }
            .stat-card {
                flex: 1 1 90px;
                max-width: 110px;
                padding: 14px 8px;
            }
            .stat-num {
                font-size: 1.2rem;
            }
            .faq-question {
                font-size: 0.9rem;
                padding: 14px 16px;
            }
            .card-body {
                padding: 16px;
            }
            .card-title {
                font-size: 1rem;
            }
        }

/* roulang page: category5 */
:root {
            --primary-dark: #1A1A1A;
            --primary-dark-light: #222222;
            --accent-green: #00C853;
            --accent-green-hover: #00B34A;
            --accent-green-glow: #00E676;
            --card-bg: #FFFFFF;
            --card-bg-alt: #F5F5F5;
            --card-bg-warm: #FAFAFA;
            --text-dark: #2C2C2C;
            --text-medium: #555555;
            --text-light: #888888;
            --text-muted: #AAAAAA;
            --border-color: #E8E8E8;
            --border-light: #F0F0F0;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 2px 12px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 4px 24px rgba(0, 0, 0, 0.12);
            --shadow-xl: 0 8px 40px rgba(0, 0, 0, 0.16);
            --radius-sm: 4px;
            --radius-md: 8px;
            --radius-lg: 12px;
            --radius-xl: 16px;
            --spacing-xs: 8px;
            --spacing-sm: 16px;
            --spacing-md: 24px;
            --spacing-lg: 40px;
            --spacing-xl: 56px;
            --spacing-2xl: 72px;
            --transition-fast: 0.15s ease;
            --transition-normal: 0.25s ease;
            --transition-slow: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            --font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --max-width: 1200px;
        }

        html {
            scroll-behavior: smooth;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        body {
            font-family: var(--font-family);
            line-height: 1.7;
            color: var(--text-dark);
            background-color: #FAFAFA;
            overflow-x: hidden;
            padding-bottom: 70px;
            margin: 0;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }

        button {
            cursor: pointer;
            font-family: inherit;
        }

        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
        }

        .container-wide {
            max-width: 1320px;
            margin: 0 auto;
            padding: 0 20px;
        }

        .container-narrow {
            max-width: 900px;
            margin: 0 auto;
            padding: 0 20px;
        }

        .container-medium {
            max-width: 1050px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* ========== HEADER & NAVIGATION ========== */
        .site-header {
            background: #fff;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 1px 0 var(--border-light);
        }

        .brand-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 14px 20px;
            max-width: var(--max-width);
            margin: 0 auto;
        }

        .brand-logo {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--primary-dark);
            letter-spacing: 0.5px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .brand-logo .logo-icon {
            width: 34px;
            height: 34px;
            background: var(--accent-green);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1rem;
            font-weight: 700;
        }

        .brand-actions {
            display: flex;
            align-items: center;
            gap: 16px;
        }

        .brand-actions .icon-btn {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            border: 1px solid var(--border-color);
            background: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-medium);
            transition: all var(--transition-fast);
            font-size: 0.9rem;
        }

        .brand-actions .icon-btn:hover {
            border-color: var(--accent-green);
            color: var(--accent-green);
            background: #f9fff9;
        }

        .brand-actions .member-btn {
            padding: 8px 18px;
            border-radius: 20px;
            border: 1.5px solid var(--accent-green);
            background: #fff;
            color: var(--accent-green);
            font-size: 0.85rem;
            font-weight: 600;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .brand-actions .member-btn:hover {
            background: var(--accent-green);
            color: #fff;
        }

        .channel-row {
            background: var(--primary-dark);
            padding: 0;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
        }

        .channel-row::-webkit-scrollbar {
            height: 0;
        }

        .channel-nav {
            display: flex;
            align-items: center;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
            gap: 0;
            flex-wrap: nowrap;
            min-width: max-content;
        }

        .channel-nav a {
            display: block;
            padding: 13px 18px;
            color: #ccc;
            font-size: 0.9rem;
            font-weight: 500;
            white-space: nowrap;
            transition: all var(--transition-fast);
            border-bottom: 3px solid transparent;
            letter-spacing: 0.3px;
        }

        .channel-nav a:hover {
            color: #fff;
            border-bottom-color: rgba(255, 255, 255, 0.4);
        }

        .channel-nav a.active {
            color: #fff;
            border-bottom-color: var(--accent-green);
            font-weight: 600;
        }

        /* Mobile nav toggle */
        .mobile-nav-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--primary-dark);
            font-size: 1.4rem;
            padding: 4px;
            cursor: pointer;
        }

        /* ========== HERO SECTION - 拼团转化 ========== */
        .hero-section {
            position: relative;
            background: var(--primary-dark);
            min-height: 520px;
            display: flex;
            align-items: center;
            overflow: hidden;
            padding: var(--spacing-xl) 0;
        }

        .hero-section .hero-bg {
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
            opacity: 0.25;
            z-index: 0;
        }

        .hero-section .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(26, 26, 26, 0.92) 0%, rgba(26, 26, 26, 0.7) 60%, rgba(0, 200, 83, 0.08) 100%);
            z-index: 1;
        }

        .hero-section .container {
            position: relative;
            z-index: 2;
            display: flex;
            align-items: center;
            gap: var(--spacing-xl);
            flex-wrap: wrap;
        }

        .hero-text {
            flex: 1 1 480px;
        }

        .hero-text .hero-badge {
            display: inline-block;
            background: rgba(0, 200, 83, 0.18);
            color: var(--accent-green-glow);
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.5px;
            margin-bottom: var(--spacing-sm);
            border: 1px solid rgba(0, 200, 83, 0.3);
        }

        .hero-text h1 {
            font-size: 2.8rem;
            font-weight: 700;
            color: #fff;
            line-height: 1.25;
            margin-bottom: var(--spacing-sm);
            letter-spacing: 0.3px;
        }

        .hero-text h1 .highlight {
            color: var(--accent-green-glow);
        }

        .hero-text .hero-subtitle {
            font-size: 1.1rem;
            color: #ccc;
            line-height: 1.6;
            margin-bottom: var(--spacing-md);
            max-width: 520px;
        }

        .hero-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            margin-bottom: var(--spacing-md);
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 28px;
            background: var(--accent-green);
            color: #fff;
            border: none;
            border-radius: var(--radius-sm);
            font-size: 1rem;
            font-weight: 600;
            letter-spacing: 0.4px;
            transition: all var(--transition-normal);
            white-space: nowrap;
            box-shadow: 0 4px 16px rgba(0, 200, 83, 0.3);
        }

        .btn-primary:hover {
            background: var(--accent-green-hover);
            box-shadow: 0 6px 24px rgba(0, 200, 83, 0.45);
            transform: translateY(-2px);
            color: #fff;
        }

        .btn-outline-light {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 28px;
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255, 255, 255, 0.5);
            border-radius: var(--radius-sm);
            font-size: 1rem;
            font-weight: 600;
            letter-spacing: 0.4px;
            transition: all var(--transition-normal);
            white-space: nowrap;
        }

        .btn-outline-light:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
            transform: translateY(-2px);
        }

        .hero-group-progress {
            display: flex;
            align-items: center;
            gap: 12px;
            color: #ccc;
            font-size: 0.9rem;
            flex-wrap: wrap;
        }

        .group-avatars {
            display: flex;
            align-items: center;
        }

        .group-avatars .avatar-dot {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: var(--accent-green);
            border: 2px solid var(--primary-dark);
            margin-right: -8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.7rem;
            color: #fff;
            font-weight: 700;
        }

        .group-avatars .avatar-dot.empty {
            background: #555;
            border-color: #444;
        }

        .group-count {
            font-weight: 700;
            color: var(--accent-green-glow);
            font-size: 1.1rem;
        }

        .hero-visual {
            flex: 1 1 380px;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .hero-visual .hero-card {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: var(--spacing-md);
            box-shadow: var(--shadow-xl);
            max-width: 380px;
            width: 100%;
        }

        .hero-visual .hero-card img {
            border-radius: var(--radius-md);
            width: 100%;
            height: 200px;
            object-fit: cover;
            margin-bottom: var(--spacing-sm);
        }

        .hero-visual .hero-card .card-info {
            padding: 0 4px;
        }

        .hero-visual .hero-card .card-info h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 4px;
        }

        .hero-visual .hero-card .card-info p {
            font-size: 0.85rem;
            color: var(--text-light);
            margin: 0;
        }

        .hero-visual .hero-card .price-tag {
            display: flex;
            align-items: baseline;
            gap: 6px;
            margin-top: 8px;
            padding-top: 8px;
            border-top: 1px solid var(--border-light);
        }

        .hero-visual .hero-card .price-tag .original {
            font-size: 0.8rem;
            color: var(--text-muted);
            text-decoration: line-through;
        }

        .hero-visual .hero-card .price-tag .group-price {
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--accent-green);
        }

        .hero-visual .hero-card .price-tag .per {
            font-size: 0.8rem;
            color: var(--text-light);
        }

        /* ========== SECTION COMMONS ========== */
        .section {
            padding: var(--spacing-xl) 0;
        }

        .section-alt {
            background: #fff;
        }

        .section-dark {
            background: var(--primary-dark);
            color: #fff;
        }

        .section-header {
            text-align: center;
            margin-bottom: var(--spacing-lg);
        }

        .section-header h2 {
            font-size: 2rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 8px;
            letter-spacing: 0.3px;
        }

        .section-dark .section-header h2 {
            color: #fff;
        }

        .section-header .section-subtitle {
            font-size: 1rem;
            color: var(--text-light);
            max-width: 600px;
            margin: 0 auto;
        }

        .section-dark .section-header .section-subtitle {
            color: #bbb;
        }

        .section-divider {
            width: 48px;
            height: 3px;
            background: var(--accent-green);
            border-radius: 2px;
            margin: 10px auto 16px;
        }

        /* ========== FEATURES GRID - 非对称 ========== */
        .features-asymmetric {
            display: grid;
            grid-template-columns: 1.4fr 1fr;
            gap: 20px;
            align-items: stretch;
        }

        .feature-card-large {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: var(--spacing-lg);
            box-shadow: var(--shadow-md);
            transition: all var(--transition-normal);
            display: flex;
            flex-direction: column;
            justify-content: center;
            position: relative;
            overflow: hidden;
            border: 1px solid var(--border-light);
        }

        .feature-card-large:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
            border-color: transparent;
        }

        .feature-card-large .feature-icon {
            width: 52px;
            height: 52px;
            border-radius: var(--radius-md);
            background: rgba(0, 200, 83, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            color: var(--accent-green);
            margin-bottom: var(--spacing-sm);
        }

        .feature-card-large h3 {
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 6px;
        }

        .feature-card-large p {
            font-size: 0.95rem;
            color: var(--text-medium);
            margin: 0;
            line-height: 1.7;
        }

        .feature-cards-stack {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .feature-card-small {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: var(--spacing-md);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-normal);
            border: 1px solid var(--border-light);
            display: flex;
            align-items: flex-start;
            gap: 14px;
        }

        .feature-card-small:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
            border-color: transparent;
        }

        .feature-card-small .fc-icon {
            width: 40px;
            height: 40px;
            border-radius: var(--radius-sm);
            background: rgba(0, 200, 83, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            color: var(--accent-green);
            flex-shrink: 0;
        }

        .feature-card-small .fc-content h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 2px;
        }

        .feature-card-small .fc-content p {
            font-size: 0.85rem;
            color: var(--text-medium);
            margin: 0;
            line-height: 1.5;
        }

        /* ========== SCENE DEMO - 图文混排 ========== */
        .scene-row {
            display: flex;
            align-items: center;
            gap: var(--spacing-xl);
            flex-wrap: wrap;
            padding: var(--spacing-lg) 0;
        }

        .scene-row.reverse {
            flex-direction: row-reverse;
        }

        .scene-image {
            flex: 1 1 420px;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }

        .scene-image img {
            width: 100%;
            height: 340px;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }

        .scene-image:hover img {
            transform: scale(1.04);
        }

        .scene-content {
            flex: 1 1 380px;
        }

        .scene-content .scene-label {
            display: inline-block;
            font-size: 0.78rem;
            font-weight: 600;
            color: var(--accent-green);
            text-transform: uppercase;
            letter-spacing: 1px;
            margin-bottom: 8px;
        }

        .scene-content h3 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 10px;
            line-height: 1.35;
        }

        .scene-content p {
            font-size: 0.95rem;
            color: var(--text-medium);
            line-height: 1.75;
            margin-bottom: 12px;
        }

        .scene-content .scene-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .scene-content .scene-list li {
            padding: 6px 0 6px 22px;
            position: relative;
            font-size: 0.9rem;
            color: var(--text-medium);
        }

        .scene-content .scene-list li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 13px;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--accent-green);
        }

        /* ========== SPORTS CATEGORY GRID ========== */
        .sports-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }

        .sport-category-card {
            background: #fff;
            border-radius: var(--radius-md);
            padding: var(--spacing-md);
            text-align: center;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-normal);
            border: 1px solid var(--border-light);
            cursor: pointer;
        }

        .sport-category-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
            border-color: var(--accent-green);
        }

        .sport-category-card .sport-icon {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background: rgba(0, 200, 83, 0.08);
            margin: 0 auto 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            color: var(--accent-green);
        }

        .sport-category-card h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 4px;
        }

        .sport-category-card .count {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        /* ========== DATA STATS ROW ========== */
        .stats-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .stat-card {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--radius-lg);
            padding: var(--spacing-md);
            text-align: center;
            transition: all var(--transition-normal);
        }

        .stat-card:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: rgba(0, 200, 83, 0.4);
            transform: translateY(-3px);
        }

        .stat-card .stat-number {
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--accent-green-glow);
            letter-spacing: 0.5px;
        }

        .stat-card .stat-label {
            font-size: 0.85rem;
            color: #bbb;
            margin-top: 4px;
        }

        /* ========== DEEP CONTENT ========== */
        .deep-content-block {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: var(--spacing-lg);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            margin-bottom: var(--spacing-md);
        }

        .deep-content-block .dc-meta {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-bottom: 6px;
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .deep-content-block h3 {
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 10px;
            line-height: 1.4;
        }

        .deep-content-block p {
            font-size: 0.95rem;
            color: var(--text-medium);
            line-height: 1.8;
            text-indent: 2em;
            margin-bottom: 8px;
        }

        .deep-content-block blockquote {
            border-left: 3px solid var(--accent-green);
            padding: 10px 16px;
            margin: 12px 0;
            background: #f9fdf9;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            font-size: 0.9rem;
            color: var(--text-medium);
            font-style: italic;
        }

        .btn-text {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--accent-green);
            font-weight: 600;
            font-size: 0.9rem;
            transition: all var(--transition-fast);
            border: none;
            background: none;
            padding: 0;
        }

        .btn-text:hover {
            color: var(--accent-green-hover);
            gap: 10px;
        }

        /* ========== TESTIMONIALS ========== */
        .testimonials-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .testimonial-card {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: var(--spacing-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: all var(--transition-normal);
        }

        .testimonial-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }

        .testimonial-card .t-quote {
            font-size: 0.9rem;
            color: var(--text-medium);
            line-height: 1.7;
            margin-bottom: 12px;
            position: relative;
            padding-left: 16px;
            border-left: 2px solid var(--accent-green);
        }

        .testimonial-card .t-author {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .testimonial-card .t-author .t-avatar {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: #e0e0e0;
            flex-shrink: 0;
        }

        .testimonial-card .t-author .t-name {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--text-dark);
        }

        .testimonial-card .t-author .t-role {
            font-size: 0.75rem;
            color: var(--text-muted);
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 780px;
            margin: 0 auto;
        }

        .faq-item {
            background: #fff;
            border-radius: var(--radius-md);
            margin-bottom: 10px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: all var(--transition-normal);
        }

        .faq-item.active {
            box-shadow: var(--shadow-md);
            border-color: rgba(0, 200, 83, 0.25);
        }

        .faq-question {
            padding: 16px 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            cursor: pointer;
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--text-dark);
            user-select: none;
            transition: background var(--transition-fast);
            gap: 12px;
        }

        .faq-question:hover {
            background: #fafafa;
        }

        .faq-question .faq-arrow {
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: transform var(--transition-normal);
            color: var(--text-muted);
            font-size: 0.8rem;
        }

        .faq-item.active .faq-question .faq-arrow {
            transform: rotate(180deg);
            color: var(--accent-green);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-normal);
        }

        .faq-item.active .faq-answer {
            max-height: 300px;
        }

        .faq-answer-inner {
            padding: 0 20px 16px;
            font-size: 0.9rem;
            color: var(--text-medium);
            line-height: 1.7;
        }

        /* ========== CTA STRIP ========== */
        .cta-strip {
            background: linear-gradient(135deg, var(--primary-dark) 0%, #1a2a1a 100%);
            padding: var(--spacing-lg) 0;
            text-align: center;
            border-radius: var(--radius-lg);
            margin: var(--spacing-lg) auto;
            max-width: var(--max-width);
            margin-left: 20px;
            margin-right: 20px;
        }

        .cta-strip h2 {
            font-size: 1.6rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 6px;
        }

        .cta-strip p {
            font-size: 0.95rem;
            color: #ccc;
            margin-bottom: var(--spacing-md);
        }

        .cta-strip .btn-primary {
            font-size: 1.05rem;
            padding: 14px 32px;
        }

        /* ========== BOTTOM FIXED BAR ========== */
        .bottom-fixed-bar {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            background: rgba(26, 26, 26, 0.94);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            z-index: 999;
            padding: 12px 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 20px;
            flex-wrap: wrap;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
        }

        .bottom-fixed-bar .bar-text {
            color: #eee;
            font-size: 0.9rem;
            font-weight: 500;
        }

        .bottom-fixed-bar .bar-text strong {
            color: var(--accent-green-glow);
        }

        .bottom-fixed-bar .btn-primary-sm {
            padding: 10px 22px;
            background: var(--accent-green);
            color: #fff;
            border: none;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.9rem;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .bottom-fixed-bar .btn-primary-sm:hover {
            background: var(--accent-green-hover);
            box-shadow: 0 4px 16px rgba(0, 200, 83, 0.4);
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--primary-dark);
            color: #bbb;
            padding: var(--spacing-xl) 20px var(--spacing-md);
            margin-top: var(--spacing-xl);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
            max-width: var(--max-width);
            margin: 0 auto;
            padding-bottom: var(--spacing-md);
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }

        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
            letter-spacing: 0.3px;
        }

        .footer-col a {
            display: block;
            font-size: 0.85rem;
            color: #999;
            padding: 4px 0;
            transition: color var(--transition-fast);
        }

        .footer-col a:hover {
            color: var(--accent-green-glow);
        }

        .footer-bottom {
            max-width: var(--max-width);
            margin: 0 auto;
            padding-top: var(--spacing-md);
            text-align: center;
            font-size: 0.78rem;
            color: #888;
            line-height: 2;
        }

        .footer-bottom a {
            color: #999;
            transition: color var(--transition-fast);
        }

        .footer-bottom a:hover {
            color: var(--accent-green-glow);
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .hero-text h1 {
                font-size: 2.2rem;
            }
            .features-asymmetric {
                grid-template-columns: 1fr;
            }
            .sports-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .stats-row {
                grid-template-columns: repeat(2, 1fr);
            }
            .testimonials-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .scene-row,
            .scene-row.reverse {
                flex-direction: column;
            }
            .scene-image img {
                height: 260px;
            }
            .hero-section .container {
                flex-direction: column;
            }
            .hero-visual {
                flex: 1 1 auto;
                width: 100%;
            }
            .hero-visual .hero-card {
                max-width: 100%;
            }
        }

        @media (max-width: 768px) {
            .hero-text h1 {
                font-size: 1.8rem;
            }
            .hero-section {
                min-height: auto;
                padding: var(--spacing-lg) 0;
            }
            .sports-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-row {
                grid-template-columns: repeat(2, 1fr);
            }
            .testimonials-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
            .section {
                padding: var(--spacing-lg) 0;
            }
            .section-header h2 {
                font-size: 1.5rem;
            }
            .bottom-fixed-bar {
                flex-direction: column;
                gap: 8px;
                text-align: center;
            }
            .brand-actions .member-btn {
                display: none;
            }
            .channel-nav a {
                padding: 10px 12px;
                font-size: 0.8rem;
            }
            .cta-strip {
                margin-left: 12px;
                margin-right: 12px;
                border-radius: var(--radius-md);
            }
            .scene-image img {
                height: 220px;
            }
        }

        @media (max-width: 520px) {
            .hero-text h1 {
                font-size: 1.5rem;
            }
            .hero-actions {
                flex-direction: column;
            }
            .hero-actions .btn-primary,
            .hero-actions .btn-outline-light {
                width: 100%;
                justify-content: center;
            }
            .sports-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 10px;
            }
            .stats-row {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .stat-card .stat-number {
                font-size: 1.6rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .features-asymmetric {
                gap: 12px;
            }
            .feature-card-large {
                padding: var(--spacing-md);
            }
            .deep-content-block {
                padding: var(--spacing-md);
            }
            .deep-content-block p {
                text-indent: 1.5em;
                font-size: 0.88rem;
            }
            .sport-category-card {
                padding: 12px 8px;
            }
            .sport-category-card .sport-icon {
                width: 38px;
                height: 38px;
                font-size: 1rem;
            }
            .sport-category-card h4 {
                font-size: 0.8rem;
            }
        }

        /* Animation utilities */
        .fade-in-up {
            opacity: 0;
            transform: translateY(20px);
            transition: opacity 0.6s ease, transform 0.6s ease;
        }
        .fade-in-up.visible {
            opacity: 1;
            transform: translateY(0);
        }

        @keyframes pulse-glow {
            0%,
            100% {
                box-shadow: 0 4px 16px rgba(0, 200, 83, 0.3);
            }
            50% {
                box-shadow: 0 4px 28px rgba(0, 200, 83, 0.55);
            }
        }
        .btn-primary.pulse {
            animation: pulse-glow 2s infinite;
        }

/* roulang page: category6 */
:root {
            --primary-dark: #1A1A1A;
            --primary-dark-light: #222222;
            --accent-green: #00C853;
            --accent-green-hover: #00B34A;
            --accent-green-glow: #00E676;
            --card-bg: #FFFFFF;
            --card-bg-alt: #F5F5F5;
            --card-bg-warm: #FAFAFA;
            --text-dark: #2C2C2C;
            --text-medium: #555555;
            --text-light: #888888;
            --text-muted: #AAAAAA;
            --border-color: #E8E8E8;
            --border-light: #F0F0F0;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 2px 12px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 4px 24px rgba(0, 0, 0, 0.12);
            --shadow-xl: 0 8px 40px rgba(0, 0, 0, 0.16);
            --radius-sm: 4px;
            --radius-md: 8px;
            --radius-lg: 12px;
            --radius-xl: 16px;
            --spacing-xs: 8px;
            --spacing-sm: 16px;
            --spacing-md: 24px;
            --spacing-lg: 40px;
            --spacing-xl: 56px;
            --spacing-2xl: 72px;
            --transition-fast: 0.15s ease;
            --transition-normal: 0.25s ease;
            --transition-slow: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            --font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --max-width: 1200px;
        }

        html {
            scroll-behavior: smooth;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-family);
            line-height: 1.7;
            color: var(--text-dark);
            background-color: #FAFAFA;
            overflow-x: hidden;
            padding-bottom: 80px;
            margin: 0;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }

        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            outline: none;
        }

        input {
            font-family: inherit;
            outline: none;
        }

        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
        }

        .container-wide {
            max-width: 1320px;
            margin: 0 auto;
            padding: 0 20px;
        }

        .container-narrow {
            max-width: 900px;
            margin: 0 auto;
            padding: 0 20px;
        }

        .container-medium {
            max-width: 1050px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* ========== HEADER & NAVIGATION ========== */
        .site-header {
            background: #fff;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 1px 0 var(--border-light);
        }

        .brand-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 14px 20px;
            max-width: var(--max-width);
            margin: 0 auto;
        }

        .brand-logo {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--primary-dark);
            letter-spacing: 0.5px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .brand-logo .logo-icon {
            width: 34px;
            height: 34px;
            background: var(--accent-green);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1rem;
            font-weight: 700;
        }

        .brand-actions {
            display: flex;
            align-items: center;
            gap: 16px;
        }

        .brand-actions .icon-btn {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            border: 1px solid var(--border-color);
            background: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-medium);
            transition: all var(--transition-fast);
            font-size: 0.9rem;
        }

        .brand-actions .icon-btn:hover {
            border-color: var(--accent-green);
            color: var(--accent-green);
            background: #f9fff9;
        }

        .brand-actions .member-btn {
            padding: 8px 18px;
            border-radius: 20px;
            border: 1.5px solid var(--accent-green);
            background: #fff;
            color: var(--accent-green);
            font-size: 0.85rem;
            font-weight: 600;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .brand-actions .member-btn:hover {
            background: var(--accent-green);
            color: #fff;
        }

        .channel-row {
            background: var(--primary-dark);
            padding: 0;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
        }

        .channel-row::-webkit-scrollbar {
            height: 0;
        }

        .channel-nav {
            display: flex;
            align-items: center;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
            gap: 0;
            flex-wrap: nowrap;
            min-width: max-content;
        }

        .channel-nav a {
            display: block;
            padding: 13px 18px;
            color: #ccc;
            font-size: 0.9rem;
            font-weight: 500;
            white-space: nowrap;
            transition: all var(--transition-fast);
            border-bottom: 3px solid transparent;
            letter-spacing: 0.3px;
        }

        .channel-nav a:hover {
            color: #fff;
            border-bottom-color: rgba(255, 255, 255, 0.3);
        }

        .channel-nav a.active {
            color: #fff;
            border-bottom-color: var(--accent-green);
            font-weight: 600;
        }

        /* ========== HERO SECTION ========== */
        .hero-section {
            position: relative;
            min-height: 75vh;
            display: flex;
            align-items: center;
            background: var(--primary-dark);
            overflow: hidden;
        }

        .hero-bg {
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            opacity: 0.35;
            z-index: 0;
        }

        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(26, 26, 26, 0.85) 0%, rgba(26, 26, 26, 0.6) 50%, rgba(26, 26, 26, 0.8) 100%);
            z-index: 1;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            width: 100%;
            padding: var(--spacing-xl) 0;
        }

        .hero-inner {
            display: flex;
            align-items: center;
            gap: 48px;
            flex-wrap: wrap;
        }

        .hero-text {
            flex: 1 1 480px;
            min-width: 300px;
            animation: fadeInUp 0.7s ease forwards;
        }

        .hero-badge {
            display: inline-block;
            background: rgba(0, 200, 83, 0.15);
            color: var(--accent-green-glow);
            padding: 6px 14px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.5px;
            margin-bottom: var(--spacing-sm);
            border: 1px solid rgba(0, 200, 83, 0.25);
        }

        .hero-text h1 {
            font-size: 2.8rem;
            font-weight: 700;
            color: #fff;
            line-height: 1.25;
            margin: 0 0 var(--spacing-sm) 0;
            letter-spacing: 0.3px;
        }

        .hero-text h1 .highlight {
            color: var(--accent-green-glow);
            position: relative;
        }

        .hero-text .hero-subtitle {
            font-size: 1.15rem;
            color: #ccc;
            line-height: 1.6;
            margin-bottom: var(--spacing-md);
            max-width: 520px;
        }

        .hero-form-wrap {
            display: flex;
            gap: 10px;
            max-width: 480px;
            flex-wrap: wrap;
        }

        .hero-form-wrap input {
            flex: 1 1 260px;
            padding: 14px 18px;
            border-radius: var(--radius-md);
            border: 1.5px solid rgba(255, 255, 255, 0.25);
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
            font-size: 0.95rem;
            transition: all var(--transition-normal);
            min-width: 200px;
        }

        .hero-form-wrap input::placeholder {
            color: #aaa;
        }

        .hero-form-wrap input:focus {
            border-color: var(--accent-green);
            background: rgba(255, 255, 255, 0.14);
            box-shadow: 0 0 0 4px rgba(0, 200, 83, 0.1);
        }

        .hero-form-wrap .btn-hero {
            padding: 14px 28px;
            border-radius: var(--radius-md);
            background: var(--accent-green);
            color: #fff;
            font-weight: 600;
            font-size: 0.95rem;
            white-space: nowrap;
            transition: all var(--transition-normal);
            letter-spacing: 0.3px;
        }

        .hero-form-wrap .btn-hero:hover {
            background: var(--accent-green-hover);
            box-shadow: 0 4px 20px rgba(0, 200, 83, 0.35);
            transform: translateY(-1px);
        }

        .hero-visual {
            flex: 1 1 400px;
            min-width: 280px;
            animation: fadeInUp 0.9s ease forwards;
            animation-delay: 0.15s;
            opacity: 0;
            animation-fill-mode: forwards;
        }

        .hero-visual-card {
            background: rgba(255, 255, 255, 0.05);
            border-radius: var(--radius-xl);
            padding: var(--spacing-md);
            border: 1px solid rgba(255, 255, 255, 0.1);
            backdrop-filter: blur(4px);
        }

        .hero-visual-card img {
            border-radius: var(--radius-lg);
            width: 100%;
            aspect-ratio: 16/10;
            object-fit: cover;
        }

        .hero-visual-stats {
            display: flex;
            gap: 20px;
            margin-top: var(--spacing-sm);
            justify-content: space-around;
        }

        .hero-stat-item {
            text-align: center;
            color: #fff;
        }

        .hero-stat-item .stat-num {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--accent-green-glow);
            display: block;
        }

        .hero-stat-item .stat-label {
            font-size: 0.75rem;
            color: #aaa;
            display: block;
            margin-top: 2px;
        }

        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(28px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        /* ========== SECTION COMMON ========== */
        .section {
            padding: var(--spacing-xl) 0;
        }

        .section-dark {
            background: var(--primary-dark);
            color: #fff;
        }

        .section-light {
            background: #fff;
        }

        .section-alt {
            background: var(--card-bg-alt);
        }

        .section-warm {
            background: var(--card-bg-warm);
        }

        .section-header {
            text-align: center;
            margin-bottom: var(--spacing-lg);
        }

        .section-header h2 {
            font-size: 2rem;
            font-weight: 700;
            color: var(--text-dark);
            margin: 0 0 var(--spacing-xs) 0;
            letter-spacing: 0.2px;
        }

        .section-dark .section-header h2 {
            color: #fff;
        }

        .section-header .section-tag {
            display: inline-block;
            font-size: 0.8rem;
            color: var(--accent-green);
            font-weight: 600;
            letter-spacing: 0.8px;
            text-transform: uppercase;
            margin-bottom: var(--spacing-xs);
        }

        .section-header .section-desc {
            font-size: 1rem;
            color: var(--text-light);
            max-width: 600px;
            margin: 0 auto;
            line-height: 1.6;
        }

        .section-dark .section-header .section-desc {
            color: #bbb;
        }

        /* ========== SELLING POINTS - ASYMMETRIC ========== */
        .selling-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr;
            grid-template-rows: auto auto;
            gap: 20px;
            align-items: stretch;
        }

        .selling-card {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: var(--spacing-md);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-normal);
            display: flex;
            flex-direction: column;
            justify-content: center;
            border: 1px solid var(--border-light);
            position: relative;
            overflow: hidden;
        }

        .selling-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
            border-color: transparent;
        }

        .selling-card.card-large {
            grid-row: 1 / 3;
            padding: var(--spacing-lg);
        }

        .selling-card .card-icon {
            width: 48px;
            height: 48px;
            border-radius: var(--radius-md);
            background: rgba(0, 200, 83, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: var(--spacing-sm);
            font-size: 1.3rem;
            color: var(--accent-green);
            flex-shrink: 0;
        }

        .selling-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text-dark);
            margin: 0 0 6px 0;
            letter-spacing: 0.2px;
        }

        .selling-card p {
            font-size: 0.9rem;
            color: var(--text-medium);
            margin: 0;
            line-height: 1.6;
        }

        .selling-card.card-large h3 {
            font-size: 1.5rem;
        }

        .selling-card.card-large p {
            font-size: 1rem;
        }

        .selling-card .card-accent-line {
            position: absolute;
            left: 0;
            top: 20%;
            bottom: 20%;
            width: 3px;
            background: var(--accent-green);
            border-radius: 0 3px 3px 0;
            opacity: 0;
            transition: opacity var(--transition-normal);
        }

        .selling-card:hover .card-accent-line {
            opacity: 1;
        }

        /* ========== SCENE DEMO ========== */
        .scene-block {
            display: flex;
            align-items: center;
            gap: 40px;
            flex-wrap: wrap;
            margin-bottom: var(--spacing-lg);
        }

        .scene-block:last-child {
            margin-bottom: 0;
        }

        .scene-block.reverse {
            flex-direction: row-reverse;
        }

        .scene-img {
            flex: 1 1 420px;
            min-width: 280px;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
        }

        .scene-img img {
            width: 100%;
            aspect-ratio: 16/10;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }

        .scene-img:hover img {
            transform: scale(1.03);
        }

        .scene-text {
            flex: 1 1 380px;
            min-width: 260px;
        }

        .scene-text h3 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--text-dark);
            margin: 0 0 var(--spacing-sm) 0;
            letter-spacing: 0.2px;
        }

        .scene-text p {
            font-size: 0.95rem;
            color: var(--text-medium);
            line-height: 1.7;
            margin: 0 0 var(--spacing-sm) 0;
        }

        .scene-text .scene-features {
            list-style: none;
            padding: 0;
            margin: 0 0 var(--spacing-sm) 0;
        }

        .scene-text .scene-features li {
            padding: 6px 0 6px 22px;
            position: relative;
            font-size: 0.9rem;
            color: var(--text-medium);
        }

        .scene-text .scene-features li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 12px;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--accent-green);
        }

        .scene-text .btn-outline {
            display: inline-block;
            padding: 10px 22px;
            border-radius: var(--radius-sm);
            border: 1.5px solid var(--accent-green);
            color: var(--accent-green);
            font-weight: 600;
            font-size: 0.9rem;
            transition: all var(--transition-fast);
            letter-spacing: 0.2px;
        }

        .scene-text .btn-outline:hover {
            background: var(--accent-green);
            color: #fff;
        }

        /* ========== DEEP CONTENT ========== */
        .deep-content-block {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: var(--spacing-lg);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            margin-bottom: var(--spacing-md);
        }

        .deep-content-block:last-child {
            margin-bottom: 0;
        }

        .deep-content-block h3 {
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--text-dark);
            margin: 0 0 var(--spacing-sm) 0;
            letter-spacing: 0.2px;
        }

        .deep-content-block p {
            font-size: 0.95rem;
            color: var(--text-medium);
            line-height: 1.8;
            margin: 0 0 var(--spacing-sm) 0;
            text-indent: 2em;
        }

        .deep-content-block p:last-child {
            margin-bottom: 0;
        }

        .deep-content-block .blockquote {
            border-left: 4px solid var(--accent-green);
            padding: var(--spacing-sm) var(--spacing-md);
            margin: var(--spacing-sm) 0;
            background: var(--card-bg-alt);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            font-style: italic;
            color: var(--text-medium);
        }

        /* ========== DATA SHOWCASE ========== */
        .data-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .data-card {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: var(--spacing-md);
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: all var(--transition-normal);
        }

        .data-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
        }

        .data-card .data-num {
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--accent-green);
            display: block;
            letter-spacing: 0.5px;
        }

        .data-card .data-label {
            font-size: 0.85rem;
            color: var(--text-light);
            margin-top: 4px;
            display: block;
        }

        /* ========== TESTIMONIALS ========== */
        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .testimonial-card {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: var(--spacing-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: all var(--transition-normal);
            position: relative;
        }

        .testimonial-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }

        .testimonial-card .quote-mark {
            font-size: 2.5rem;
            color: var(--accent-green);
            opacity: 0.3;
            line-height: 1;
            position: absolute;
            top: 12px;
            left: 16px;
        }

        .testimonial-card .testimonial-text {
            font-size: 0.9rem;
            color: var(--text-medium);
            line-height: 1.7;
            padding-top: 8px;
            margin-bottom: var(--spacing-sm);
        }

        .testimonial-card .testimonial-author {
            font-size: 0.8rem;
            color: var(--text-light);
            font-weight: 600;
        }

        .testimonial-card .testimonial-author span {
            color: var(--text-muted);
            font-weight: 400;
        }

        /* ========== FEATURE GRID ========== */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .feature-card {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: var(--spacing-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: all var(--transition-normal);
            text-align: center;
        }

        .feature-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
        }

        .feature-card .feature-icon {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: rgba(0, 200, 83, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto var(--spacing-sm);
            font-size: 1.4rem;
            color: var(--accent-green);
            transition: all var(--transition-normal);
        }

        .feature-card:hover .feature-icon {
            background: var(--accent-green);
            color: #fff;
        }

        .feature-card h4 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-dark);
            margin: 0 0 6px 0;
        }

        .feature-card p {
            font-size: 0.85rem;
            color: var(--text-medium);
            margin: 0;
            line-height: 1.6;
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background: #fff;
            border-radius: var(--radius-md);
            margin-bottom: 10px;
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: all var(--transition-normal);
        }

        .faq-item.active {
            box-shadow: var(--shadow-md);
            border-color: transparent;
        }

        .faq-question {
            padding: 16px 20px;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--text-dark);
            user-select: none;
            transition: background var(--transition-fast);
            gap: 12px;
        }

        .faq-question:hover {
            background: var(--card-bg-alt);
        }

        .faq-question .faq-arrow {
            font-size: 0.8rem;
            color: var(--text-light);
            transition: transform var(--transition-normal);
            flex-shrink: 0;
        }

        .faq-item.active .faq-question .faq-arrow {
            transform: rotate(180deg);
            color: var(--accent-green);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-normal);
            padding: 0 20px;
        }

        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 20px 16px;
        }

        .faq-answer p {
            font-size: 0.9rem;
            color: var(--text-medium);
            line-height: 1.7;
            margin: 0;
        }

        /* ========== CTA BANNER ========== */
        .cta-banner {
            background: var(--primary-dark);
            border-radius: var(--radius-xl);
            padding: var(--spacing-lg);
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
            opacity: 0.15;
            z-index: 0;
        }

        .cta-banner>* {
            position: relative;
            z-index: 1;
        }

        .cta-banner h2 {
            font-size: 1.8rem;
            font-weight: 700;
            color: #fff;
            margin: 0 0 var(--spacing-sm) 0;
        }

        .cta-banner p {
            font-size: 1rem;
            color: #ccc;
            margin: 0 0 var(--spacing-md) 0;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
        }

        .cta-banner .btn-cta-large {
            display: inline-block;
            padding: 14px 36px;
            border-radius: var(--radius-md);
            background: var(--accent-green);
            color: #fff;
            font-weight: 700;
            font-size: 1rem;
            letter-spacing: 0.3px;
            transition: all var(--transition-normal);
            box-shadow: 0 4px 16px rgba(0, 200, 83, 0.3);
        }

        .cta-banner .btn-cta-large:hover {
            background: var(--accent-green-hover);
            box-shadow: 0 6px 28px rgba(0, 200, 83, 0.45);
            transform: translateY(-2px);
        }

        /* ========== FIXED BOTTOM BAR ========== */
        .fixed-bottom-bar {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 999;
            background: rgba(26, 26, 26, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            padding: 12px 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 20px;
            flex-wrap: wrap;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            animation: slideUpBar 0.5s ease forwards;
        }

        @keyframes slideUpBar {
            from {
                transform: translateY(100%);
            }
            to {
                transform: translateY(0);
            }
        }

        .fixed-bottom-bar .bar-text {
            color: #fff;
            font-size: 0.95rem;
            font-weight: 500;
            letter-spacing: 0.2px;
            white-space: nowrap;
        }

        .fixed-bottom-bar .bar-text strong {
            color: var(--accent-green-glow);
        }

        .fixed-bottom-bar .btn-bar {
            padding: 10px 24px;
            border-radius: 20px;
            background: var(--accent-green);
            color: #fff;
            font-weight: 600;
            font-size: 0.9rem;
            white-space: nowrap;
            transition: all var(--transition-fast);
            letter-spacing: 0.3px;
        }

        .fixed-bottom-bar .btn-bar:hover {
            background: var(--accent-green-hover);
            box-shadow: 0 4px 16px rgba(0, 200, 83, 0.4);
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--primary-dark);
            color: #bbb;
            padding: var(--spacing-lg) 0 var(--spacing-md);
            margin-top: 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
        }

        .footer-col h4 {
            color: #fff;
            font-size: 0.95rem;
            font-weight: 700;
            margin: 0 0 var(--spacing-sm) 0;
            letter-spacing: 0.3px;
        }

        .footer-col a {
            display: block;
            color: #999;
            font-size: 0.85rem;
            padding: 4px 0;
            transition: color var(--transition-fast);
        }

        .footer-col a:hover {
            color: var(--accent-green-glow);
        }

        .footer-bottom {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: var(--spacing-md) 20px 0;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            margin-top: var(--spacing-md);
            text-align: center;
            font-size: 0.8rem;
            color: #888;
        }

        .footer-bottom p {
            margin: 4px 0;
        }

        .footer-bottom a {
            color: #999;
            transition: color var(--transition-fast);
        }

        .footer-bottom a:hover {
            color: var(--accent-green-glow);
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .selling-grid {
                grid-template-columns: 1fr 1fr;
                grid-template-rows: auto;
            }
            .selling-card.card-large {
                grid-row: auto;
                grid-column: 1 / -1;
            }
            .data-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .testimonial-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .feature-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .hero-inner {
                gap: 30px;
            }
            .hero-text h1 {
                font-size: 2.2rem;
            }
            .scene-block {
                gap: 24px;
            }
            .scene-text h3 {
                font-size: 1.3rem;
            }
        }

        @media (max-width: 768px) {
            .selling-grid {
                grid-template-columns: 1fr;
            }
            .selling-card.card-large {
                grid-column: auto;
            }
            .data-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .testimonial-grid {
                grid-template-columns: 1fr;
            }
            .feature-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
            .hero-section {
                min-height: auto;
                padding: var(--spacing-lg) 0;
            }
            .hero-inner {
                flex-direction: column;
                gap: 24px;
            }
            .hero-text h1 {
                font-size: 1.8rem;
            }
            .hero-text .hero-subtitle {
                font-size: 1rem;
            }
            .hero-visual {
                flex: 1 1 auto;
                width: 100%;
            }
            .scene-block {
                flex-direction: column !important;
                gap: 16px;
            }
            .scene-img {
                flex: 1 1 auto;
                width: 100%;
            }
            .scene-text {
                flex: 1 1 auto;
                width: 100%;
            }
            .section-header h2 {
                font-size: 1.5rem;
            }
            .cta-banner h2 {
                font-size: 1.4rem;
            }
            .fixed-bottom-bar {
                flex-direction: column;
                gap: 10px;
                text-align: center;
                padding: 10px 16px;
            }
            .fixed-bottom-bar .bar-text {
                font-size: 0.85rem;
                white-space: normal;
            }
            .channel-nav a {
                padding: 11px 12px;
                font-size: 0.8rem;
            }
            .brand-logo {
                font-size: 1.25rem;
            }
            .brand-actions .member-btn {
                padding: 6px 12px;
                font-size: 0.75rem;
            }
            .hero-form-wrap {
                flex-direction: column;
            }
            .hero-form-wrap input {
                flex: 1 1 auto;
                width: 100%;
            }
            .hero-form-wrap .btn-hero {
                width: 100%;
                text-align: center;
            }
            .data-card .data-num {
                font-size: 1.6rem;
            }
        }

        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .hero-text h1 {
                font-size: 1.5rem;
            }
            .section {
                padding: var(--spacing-lg) 0;
            }
            .data-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .data-card {
                padding: var(--spacing-sm);
            }
            .selling-card {
                padding: var(--spacing-sm);
            }
            .selling-card.card-large {
                padding: var(--spacing-sm);
            }
            .deep-content-block {
                padding: var(--spacing-sm);
            }
            .testimonial-card {
                padding: var(--spacing-sm);
            }
            .feature-card {
                padding: var(--spacing-sm);
            }
            .cta-banner {
                padding: var(--spacing-md);
            }
            .brand-actions .icon-btn {
                width: 30px;
                height: 30px;
                font-size: 0.75rem;
            }
            .brand-actions {
                gap: 8px;
            }
        }

/* roulang page: category7 */
:root {
            --primary-dark: #1A1A1A;
            --primary-dark-light: #222222;
            --accent-green: #00C853;
            --accent-green-hover: #00B34A;
            --accent-green-glow: #00E676;
            --card-bg: #FFFFFF;
            --card-bg-alt: #F5F5F5;
            --card-bg-warm: #FAFAFA;
            --text-dark: #2C2C2C;
            --text-medium: #555555;
            --text-light: #888888;
            --text-muted: #AAAAAA;
            --border-color: #E8E8E8;
            --border-light: #F0F0F0;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 2px 12px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 4px 24px rgba(0, 0, 0, 0.12);
            --shadow-xl: 0 8px 40px rgba(0, 0, 0, 0.16);
            --radius-sm: 4px;
            --radius-md: 8px;
            --radius-lg: 12px;
            --radius-xl: 16px;
            --spacing-xs: 8px;
            --spacing-sm: 16px;
            --spacing-md: 24px;
            --spacing-lg: 40px;
            --spacing-xl: 56px;
            --spacing-2xl: 72px;
            --transition-fast: 0.15s ease;
            --transition-normal: 0.25s ease;
            --transition-slow: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            --font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --max-width: 1200px;
        }

        html {
            scroll-behavior: smooth;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-family);
            line-height: 1.7;
            color: var(--text-dark);
            background-color: #FAFAFA;
            overflow-x: hidden;
            padding-bottom: 70px;
            margin: 0;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }

        button {
            cursor: pointer;
            font-family: inherit;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            margin: 0 0 0.5em 0;
            line-height: 1.3;
            font-weight: 700;
            color: var(--text-dark);
        }

        h1 {
            font-size: 2.4rem;
        }
        h2 {
            font-size: 1.9rem;
        }
        h3 {
            font-size: 1.35rem;
        }
        h4 {
            font-size: 1.1rem;
        }

        p {
            margin: 0 0 1em 0;
        }

        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
        }
        .container-wide {
            max-width: 1320px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .container-narrow {
            max-width: 900px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* ========== HEADER & NAVIGATION ========== */
        .site-header {
            background: #fff;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 1px 0 var(--border-light);
        }

        .brand-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 14px 20px;
            max-width: var(--max-width);
            margin: 0 auto;
        }

        .brand-logo {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--primary-dark);
            letter-spacing: 0.5px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .brand-logo .logo-icon {
            width: 34px;
            height: 34px;
            background: var(--accent-green);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1rem;
            font-weight: 700;
        }

        .brand-actions {
            display: flex;
            align-items: center;
            gap: 16px;
        }

        .brand-actions .icon-btn {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            border: 1px solid var(--border-color);
            background: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-medium);
            transition: all var(--transition-fast);
            font-size: 0.9rem;
        }

        .brand-actions .icon-btn:hover {
            border-color: var(--accent-green);
            color: var(--accent-green);
            background: #f9fff9;
        }

        .brand-actions .member-btn {
            padding: 8px 18px;
            border-radius: 20px;
            border: 1.5px solid var(--accent-green);
            background: #fff;
            color: var(--accent-green);
            font-size: 0.85rem;
            font-weight: 600;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .brand-actions .member-btn:hover {
            background: var(--accent-green);
            color: #fff;
        }

        .channel-row {
            background: var(--primary-dark);
            padding: 0;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
        }

        .channel-row::-webkit-scrollbar {
            height: 0;
        }

        .channel-nav {
            display: flex;
            align-items: center;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
            gap: 0;
            flex-wrap: nowrap;
            min-width: max-content;
        }

        .channel-nav a {
            display: block;
            padding: 13px 18px;
            color: #ccc;
            font-size: 0.9rem;
            font-weight: 500;
            white-space: nowrap;
            transition: all var(--transition-fast);
            border-bottom: 3px solid transparent;
            letter-spacing: 0.3px;
        }

        .channel-nav a:hover {
            color: #fff;
            border-bottom-color: var(--accent-green-glow);
        }

        .channel-nav a.active {
            color: #fff;
            border-bottom-color: var(--accent-green);
            font-weight: 700;
        }

        /* ========== BUTTONS ========== */
        .btn {
            display: inline-block;
            padding: 12px 24px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.95rem;
            letter-spacing: 0.3px;
            transition: all var(--transition-normal);
            text-align: center;
            border: none;
            white-space: nowrap;
        }

        .btn-primary {
            background: var(--accent-green);
            color: #fff;
            box-shadow: 0 2px 8px rgba(0, 200, 83, 0.3);
        }

        .btn-primary:hover {
            background: var(--accent-green-hover);
            box-shadow: 0 4px 16px rgba(0, 200, 83, 0.4);
            transform: translateY(-1px);
            color: #fff;
        }

        .btn-outline {
            background: transparent;
            color: var(--accent-green);
            border: 2px solid var(--accent-green);
        }

        .btn-outline:hover {
            background: var(--accent-green);
            color: #fff;
        }

        .btn-lg {
            padding: 16px 32px;
            font-size: 1.05rem;
            border-radius: var(--radius-md);
        }

        .btn-sm {
            padding: 8px 16px;
            font-size: 0.82rem;
            border-radius: var(--radius-sm);
        }

        /* ========== SECTION SPACING ========== */
        .section {
            padding: var(--spacing-xl) 0;
        }
        .section-alt {
            background: #fff;
        }
        .section-dark {
            background: var(--primary-dark);
            color: #ddd;
        }
        .section-dark h2,
        .section-dark h3 {
            color: #fff;
        }
        .section-accent-bg {
            background: #f0faf4;
        }

        /* ========== HERO (矮横幅) ========== */
        .hero-banner {
            background: linear-gradient(135deg, #f8faf9 0%, #e8f5e9 30%, #f5f5f5 100%);
            padding: var(--spacing-xl) 0 var(--spacing-lg);
            border-bottom: 1px solid var(--border-light);
            position: relative;
            overflow: hidden;
        }

        .hero-banner::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -80px;
            width: 320px;
            height: 320px;
            border-radius: 50%;
            background: rgba(0, 200, 83, 0.06);
            pointer-events: none;
        }

        .hero-banner::after {
            content: '';
            position: absolute;
            bottom: -40px;
            left: -60px;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: rgba(0, 200, 83, 0.04);
            pointer-events: none;
        }

        .hero-banner .hero-inner {
            display: flex;
            align-items: center;
            gap: var(--spacing-lg);
            position: relative;
            z-index: 2;
            flex-wrap: wrap;
        }

        .hero-banner .hero-text {
            flex: 1 1 400px;
            min-width: 280px;
        }

        .hero-banner .hero-text h1 {
            font-size: 2.4rem;
            color: var(--primary-dark);
            margin-bottom: 0.35em;
            line-height: 1.25;
        }

        .hero-banner .hero-text h1 .highlight {
            color: var(--accent-green);
            position: relative;
        }

        .hero-banner .hero-text .hero-desc {
            font-size: 1.05rem;
            color: var(--text-medium);
            line-height: 1.7;
            margin-bottom: var(--spacing-md);
            max-width: 520px;
        }

        .hero-banner .hero-visual {
            flex: 1 1 380px;
            min-width: 260px;
            display: flex;
            justify-content: center;
            align-items: center;
        }

        .hero-banner .hero-visual img {
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-lg);
            max-width: 100%;
            height: auto;
        }

        /* ========== CARDS ========== */
        .card {
            background: var(--card-bg);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            padding: var(--spacing-md);
            transition: all var(--transition-normal);
            border: 1px solid var(--border-light);
            height: 100%;
        }

        .card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
            border-color: transparent;
        }

        .card-icon {
            width: 48px;
            height: 48px;
            border-radius: var(--radius-sm);
            background: #e8f8ef;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-green);
            font-size: 1.3rem;
            margin-bottom: var(--spacing-sm);
        }

        .card h3 {
            font-size: 1.15rem;
            margin-bottom: 0.4em;
        }

        .card p {
            color: var(--text-medium);
            font-size: 0.9rem;
            line-height: 1.6;
            margin: 0;
        }

        /* ========== FEATURE GRID ========== */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--spacing-md);
        }

        .feature-grid.asymmetric {
            grid-template-columns: 1.4fr 1fr 1fr;
        }

        .feature-grid.asymmetric .card:first-child {
            grid-row: span 2;
        }

        /* ========== DATA TABLE CARD ========== */
        .data-table-wrap {
            background: #fff;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            overflow: hidden;
            border: 1px solid var(--border-light);
        }

        .data-table-wrap .table-header {
            background: var(--primary-dark);
            color: #fff;
            padding: 14px 20px;
            font-weight: 700;
            font-size: 1rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .data-table-wrap .table-header .live-dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: var(--accent-green-glow);
            display: inline-block;
            margin-right: 6px;
            animation: pulse-dot 1.5s infinite;
        }

        @keyframes pulse-dot {
            0%,
            100% {
                box-shadow: 0 0 0 0 rgba(0, 230, 118, 0.6);
            }
            50% {
                box-shadow: 0 0 0 10px rgba(0, 230, 118, 0);
            }
        }

        .mini-table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.9rem;
        }

        .mini-table th {
            background: #f9f9f9;
            padding: 10px 14px;
            text-align: left;
            font-weight: 600;
            color: var(--text-medium);
            font-size: 0.8rem;
            text-transform: uppercase;
            letter-spacing: 0.5px;
            border-bottom: 2px solid var(--border-color);
        }

        .mini-table td {
            padding: 10px 14px;
            border-bottom: 1px solid var(--border-light);
            color: var(--text-dark);
        }

        .mini-table tbody tr:hover {
            background: #fafffb;
        }

        .mini-table .rank-cell {
            font-weight: 700;
            color: var(--accent-green);
            font-size: 1.1rem;
        }

        .mini-table .trend-up {
            color: var(--accent-green);
        }
        .mini-table .trend-down {
            color: #e57373;
        }

        /* ========== STAT CARDS ROW ========== */
        .stat-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--spacing-md);
        }

        .stat-card {
            background: #fff;
            border-radius: var(--radius-md);
            padding: var(--spacing-md);
            text-align: center;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-normal);
        }

        .stat-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }

        .stat-card .stat-number {
            font-size: 2.4rem;
            font-weight: 700;
            color: var(--accent-green);
            line-height: 1;
            margin-bottom: 6px;
        }

        .stat-card .stat-label {
            font-size: 0.85rem;
            color: var(--text-light);
            font-weight: 500;
        }

        /* ========== SCENARIO CARDS ========== */
        .scenario-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: var(--spacing-md);
        }

        .scenario-card {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: var(--spacing-lg);
            border: 1px solid var(--border-light);
            display: flex;
            gap: var(--spacing-md);
            align-items: flex-start;
            transition: all var(--transition-normal);
            box-shadow: var(--shadow-sm);
        }

        .scenario-card:hover {
            box-shadow: var(--shadow-lg);
            border-color: transparent;
            transform: translateY(-2px);
        }

        .scenario-card .sc-icon {
            width: 52px;
            height: 52px;
            border-radius: var(--radius-md);
            background: #e8f8ef;
            flex-shrink: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-green);
            font-size: 1.4rem;
        }

        .scenario-card .sc-info h3 {
            font-size: 1.1rem;
            margin-bottom: 4px;
        }
        .scenario-card .sc-info p {
            font-size: 0.88rem;
            color: var(--text-medium);
            margin: 0;
            line-height: 1.6;
        }

        /* ========== PROCESS STEPS ========== */
        .process-steps {
            display: flex;
            gap: 0;
            align-items: stretch;
            flex-wrap: wrap;
        }

        .process-step {
            flex: 1 1 200px;
            min-width: 180px;
            text-align: center;
            padding: var(--spacing-md);
            position: relative;
            background: #fff;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            margin: 0 4px;
        }

        .process-step .step-num {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--accent-green);
            color: #fff;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1.1rem;
            margin-bottom: 10px;
        }

        .process-step h4 {
            font-size: 1rem;
            margin-bottom: 4px;
        }
        .process-step p {
            font-size: 0.82rem;
            color: var(--text-light);
            margin: 0;
        }

        .process-arrow {
            display: flex;
            align-items: center;
            color: var(--accent-green);
            font-size: 1.5rem;
            flex-shrink: 0;
        }

        /* ========== FAQ ========== */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .faq-item {
            background: #fff;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: all var(--transition-normal);
        }

        .faq-item.active {
            border-color: var(--accent-green);
            box-shadow: var(--shadow-md);
        }

        .faq-question {
            padding: 16px 20px;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-dark);
            background: #fafafa;
            transition: background var(--transition-fast);
            user-select: none;
        }

        .faq-question:hover {
            background: #f0faf4;
        }

        .faq-item.active .faq-question {
            background: #f0faf4;
            color: var(--accent-green);
        }

        .faq-question .faq-arrow {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            border: 1px solid var(--border-color);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.7rem;
            transition: transform var(--transition-normal);
            flex-shrink: 0;
            background: #fff;
        }

        .faq-item.active .faq-arrow {
            transform: rotate(180deg);
            border-color: var(--accent-green);
            color: var(--accent-green);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-normal);
            padding: 0 20px;
            color: var(--text-medium);
            font-size: 0.9rem;
            line-height: 1.7;
        }

        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 20px 16px;
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            background: linear-gradient(135deg, #1A1A1A 0%, #222 100%);
            padding: var(--spacing-xl) 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -80px;
            right: -80px;
            width: 260px;
            height: 260px;
            border-radius: 50%;
            background: rgba(0, 200, 83, 0.08);
            pointer-events: none;
        }

        .cta-section h2 {
            color: #fff;
            font-size: 1.9rem;
            margin-bottom: 0.3em;
            position: relative;
            z-index: 2;
        }

        .cta-section p {
            color: #bbb;
            font-size: 1rem;
            margin-bottom: var(--spacing-md);
            position: relative;
            z-index: 2;
        }

        .cta-section .btn {
            position: relative;
            z-index: 2;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--primary-dark);
            color: #ccc;
            padding: var(--spacing-xl) 0 var(--spacing-md);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--spacing-lg);
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
        }

        .footer-col h4 {
            color: #fff;
            font-size: 1rem;
            margin-bottom: var(--spacing-sm);
            font-weight: 700;
        }

        .footer-col a {
            display: block;
            color: #aaa;
            font-size: 0.85rem;
            padding: 4px 0;
            transition: color var(--transition-fast);
        }

        .footer-col a:hover {
            color: var(--accent-green-glow);
        }

        .footer-bottom {
            max-width: var(--max-width);
            margin: var(--spacing-lg) auto 0;
            padding: var(--spacing-md) 20px 0;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            text-align: center;
            font-size: 0.78rem;
            color: #999;
        }

        .footer-bottom a {
            color: #aaa;
            transition: color var(--transition-fast);
        }
        .footer-bottom a:hover {
            color: var(--accent-green-glow);
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .feature-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .feature-grid.asymmetric {
                grid-template-columns: 1fr 1fr;
            }
            .feature-grid.asymmetric .card:first-child {
                grid-row: span 1;
                grid-column: span 2;
            }
            .stat-row {
                grid-template-columns: repeat(2, 1fr);
            }
            .scenario-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .hero-banner .hero-text h1 {
                font-size: 1.9rem;
            }
            .process-steps {
                flex-direction: column;
                gap: var(--spacing-sm);
            }
            .process-arrow {
                display: none;
            }
            .process-step {
                margin: 0;
            }
        }

        @media (max-width: 768px) {
            .feature-grid {
                grid-template-columns: 1fr;
            }
            .feature-grid.asymmetric {
                grid-template-columns: 1fr;
            }
            .feature-grid.asymmetric .card:first-child {
                grid-column: span 1;
            }
            .stat-row {
                grid-template-columns: repeat(2, 1fr);
            }
            .hero-banner .hero-inner {
                flex-direction: column;
                text-align: center;
            }
            .hero-banner .hero-text .hero-desc {
                max-width: 100%;
                margin-left: auto;
                margin-right: auto;
            }
            .hero-banner .hero-text h1 {
                font-size: 1.6rem;
            }
            .hero-banner {
                padding: var(--spacing-lg) 0;
            }
            .section {
                padding: var(--spacing-lg) 0;
            }
            .brand-actions .icon-btn {
                width: 30px;
                height: 30px;
                font-size: 0.75rem;
            }
            .brand-actions .member-btn {
                padding: 6px 12px;
                font-size: 0.75rem;
            }
            .brand-logo {
                font-size: 1.2rem;
            }
            .channel-nav a {
                padding: 10px 12px;
                font-size: 0.78rem;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: var(--spacing-md);
            }
            .btn-lg {
                padding: 14px 24px;
                font-size: 0.95rem;
            }
            h1 {
                font-size: 1.7rem;
            }
            h2 {
                font-size: 1.4rem;
            }
            .scenario-card {
                flex-direction: column;
                text-align: center;
                align-items: center;
            }
        }

        @media (max-width: 520px) {
            .stat-row {
                grid-template-columns: 1fr 1fr;
                gap: var(--spacing-sm);
            }
            .stat-card .stat-number {
                font-size: 1.8rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: var(--spacing-sm);
            }
            .brand-row {
                padding: 10px 14px;
            }
            .brand-logo {
                font-size: 1.1rem;
            }
            .brand-logo .logo-icon {
                width: 28px;
                height: 28px;
                font-size: 0.8rem;
            }
            .hero-banner .hero-text h1 {
                font-size: 1.4rem;
            }
            .hero-banner .hero-text .hero-desc {
                font-size: 0.9rem;
            }
            .channel-nav a {
                padding: 9px 10px;
                font-size: 0.72rem;
            }
            .mini-table {
                font-size: 0.72rem;
            }
            .mini-table th,
            .mini-table td {
                padding: 6px 8px;
            }
        }