/* roulang page: index */
:root {
            --bg-primary: #0E0C12;
            --bg-secondary: #141116;
            --bg-card: #1C1821;
            --border-subtle: rgba(255,255,255,0.08);
            --accent-red: #FF3A3D;
            --accent-red-hover: #d92b2e;
            --accent-gold: #E8B34B;
            --text-primary: #F5F2F7;
            --text-secondary: #B9B3C2;
            --font-sans: 'PingFang SC','Microsoft YaHei','Noto Sans SC',system-ui,-apple-system,sans-serif;
            --radius-card: 16px;
            --radius-btn: 999px;
            --radius-sm: 12px;
            --shadow-card: 0 20px 40px rgba(0,0,0,0.45);
            --shadow-hover: 0 28px 56px rgba(0,0,0,0.6);
            --transition: all 0.3s cubic-bezier(0.4,0,0.2,1);
            --container-max: 1200px;
        }

        * { box-sizing: border-box; }

        html { scroll-behavior: smooth; }

        body {
            font-family: var(--font-sans);
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.6;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

        a { text-decoration: none; color: inherit; transition: var(--transition); }
        img { max-width: 100%; height: auto; display: block; }
        button { font-family: inherit; }
        input, textarea, select { font-family: inherit; }

        .container { max-width: var(--container-max); padding-left: 24px; padding-right: 24px; }

        /* ===== Section Base ===== */
        .section-block {
            padding: 80px 0;
            position: relative;
        }
        .section-block.bg-alt {
            background-color: var(--bg-secondary);
        }
        .section-label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 700;
            letter-spacing: 0.12em;
            text-transform: uppercase;
            color: var(--accent-red);
            margin-bottom: 12px;
        }
        .section-title {
            font-size: 2.6rem;
            font-weight: 800;
            line-height: 1.15;
            letter-spacing: -0.01em;
            margin-bottom: 16px;
        }
        .section-title .highlight {
            color: var(--accent-red);
        }
        .section-desc {
            font-size: 1.05rem;
            color: var(--text-secondary);
            max-width: 720px;
            line-height: 1.7;
        }
        .section-header {
            margin-bottom: 48px;
        }

        /* ===== Buttons ===== */
        .btn-custom {
            border-radius: var(--radius-btn);
            padding: 14px 32px;
            font-weight: 700;
            font-size: 0.95rem;
            letter-spacing: 0.02em;
            transition: var(--transition);
            border: 2px solid transparent;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .btn-primary-custom {
            background-color: var(--accent-red);
            color: #fff;
            border-color: var(--accent-red);
        }
        .btn-primary-custom:hover {
            background-color: var(--accent-red-hover);
            border-color: var(--accent-red-hover);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 12px 28px rgba(255,58,61,0.35);
        }
        .btn-primary-custom:active { transform: translateY(0); }
        .btn-outline-custom {
            background-color: transparent;
            color: var(--text-primary);
            border-color: rgba(255,255,255,0.25);
        }
        .btn-outline-custom:hover {
            background-color: rgba(255,255,255,0.06);
            border-color: var(--accent-red);
            color: var(--accent-red);
            transform: translateY(-2px);
        }
        .btn-sm-custom {
            padding: 10px 22px;
            font-size: 0.88rem;
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background-color: rgba(14,12,18,0.88);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-subtle);
            transition: var(--transition);
        }
        .site-header.scrolled {
            background-color: rgba(14,12,18,0.96);
            box-shadow: 0 4px 24px rgba(0,0,0,0.5);
        }
        .navbar-custom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 16px 24px;
            max-width: var(--container-max);
            margin: 0 auto;
            gap: 24px;
        }
        .navbar-logo {
            font-size: 1.25rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            color: var(--text-primary);
            white-space: nowrap;
        }
        .navbar-logo span {
            color: var(--accent-red);
        }
        .navbar-links {
            display: flex;
            align-items: center;
            gap: 32px;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .navbar-links a {
            font-size: 0.92rem;
            font-weight: 500;
            color: var(--text-secondary);
            position: relative;
            padding: 4px 0;
            white-space: nowrap;
        }
        .navbar-links a:hover,
        .navbar-links a.active {
            color: var(--text-primary);
        }
        .navbar-links a.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 2px;
            background-color: var(--accent-red);
            border-radius: 1px;
        }
        .navbar-links a:hover::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 2px;
            background-color: var(--accent-red);
            border-radius: 1px;
        }
        .navbar-badge {
            display: inline-block;
            background-color: rgba(255,58,61,0.15);
            color: var(--accent-red);
            font-size: 0.7rem;
            font-weight: 700;
            padding: 3px 10px;
            border-radius: 999px;
            letter-spacing: 0.05em;
            margin-left: 8px;
            border: 1px solid rgba(255,58,61,0.3);
            animation: pulse-badge 2s ease-in-out infinite;
        }
        @keyframes pulse-badge {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.6; }
        }
        .navbar-cta {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }
        .navbar-toggle {
            display: none;
            background: none;
            border: 1px solid var(--border-subtle);
            border-radius: 10px;
            padding: 8px 12px;
            color: var(--text-primary);
            font-size: 1.2rem;
            cursor: pointer;
        }
        .navbar-toggle:hover {
            border-color: var(--accent-red);
            color: var(--accent-red);
        }

        /* ===== Hero ===== */
        .hero-section {
            min-height: 80vh;
            display: flex;
            align-items: center;
            padding: 60px 0;
            background-image: linear-gradient(135deg, rgba(14,12,18,0.92) 0%, rgba(20,17,22,0.82) 50%, rgba(14,12,18,0.9) 100%), url('/assets/images/71f1e8a688f7b370.jpg');
            background-size: cover;
            background-position: center;
            position: relative;
            overflow: hidden;
        }
        .hero-section::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 120px;
            background: linear-gradient(to top, var(--bg-primary), transparent);
            pointer-events: none;
        }
        .hero-content {
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 48px;
            align-items: center;
            position: relative;
            z-index: 2;
        }
        .hero-title {
            font-size: 4rem;
            font-weight: 900;
            line-height: 1.08;
            letter-spacing: -0.02em;
            margin-bottom: 24px;
        }
        .hero-title .highlight {
            color: var(--accent-red);
            position: relative;
        }
        .hero-subtitle {
            font-size: 1.15rem;
            color: var(--text-secondary);
            line-height: 1.7;
            max-width: 540px;
            margin-bottom: 32px;
        }
        .hero-actions {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            margin-bottom: 28px;
        }
        .hero-status {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.85rem;
            color: var(--text-secondary);
        }
        .hero-status .dot {
            display: inline-block;
            width: 8px;
            height: 8px;
            background-color: var(--accent-gold);
            border-radius: 50%;
            animation: pulse-dot 1.5s ease-in-out infinite;
        }
        @keyframes pulse-dot {
            0%, 100% { box-shadow: 0 0 0 0 rgba(232,179,75,0.5); }
            50% { box-shadow: 0 0 0 6px rgba(232,179,75,0); }
        }
        .hero-panel {
            background-color: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-card);
            padding: 32px 28px;
            box-shadow: var(--shadow-card);
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .hero-panel .panel-item {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding-bottom: 16px;
            border-bottom: 1px solid var(--border-subtle);
        }
        .hero-panel .panel-item:last-child {
            border-bottom: none;
            padding-bottom: 0;
        }
        .hero-panel .panel-label {
            font-size: 0.85rem;
            color: var(--text-secondary);
        }
        .hero-panel .panel-value {
            font-size: 1.1rem;
            font-weight: 800;
            color: var(--accent-gold);
            font-family: 'SF Mono','Consolas',monospace;
        }
        .hero-panel .panel-note {
            font-size: 0.75rem;
            color: var(--text-secondary);
            margin-top: 4px;
        }

        /* ===== Pain Points ===== */
        .pain-card {
            background-color: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-card);
            padding: 28px;
            height: 100%;
            transition: var(--transition);
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .pain-card:hover {
            border-color: var(--accent-red);
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .pain-card .pain-icon {
            font-size: 2rem;
            color: var(--accent-red);
        }
        .pain-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin: 0;
        }
        .pain-card p {
            font-size: 0.92rem;
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.6;
        }

        /* ===== Solution ===== */
        .solution-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }
        .solution-image {
            border-radius: var(--radius-card);
            overflow: hidden;
            border: 1px solid var(--border-subtle);
            box-shadow: var(--shadow-card);
        }
        .solution-image img {
            width: 100%;
            height: 320px;
            object-fit: cover;
            transition: transform 0.6s ease;
        }
        .solution-image:hover img {
            transform: scale(1.04);
        }
        .solution-features {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .solution-feature-item {
            display: flex;
            align-items: flex-start;
            gap: 14px;
            padding: 16px 18px;
            background-color: rgba(255,255,255,0.03);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-subtle);
            transition: var(--transition);
        }
        .solution-feature-item:hover {
            border-color: var(--accent-red);
            background-color: rgba(255,58,61,0.05);
        }
        .solution-feature-item .feature-icon {
            font-size: 1.3rem;
            color: var(--accent-red);
            flex-shrink: 0;
            margin-top: 2px;
        }
        .solution-feature-item .feature-text h4 {
            font-size: 0.98rem;
            font-weight: 700;
            margin: 0 0 4px;
        }
        .solution-feature-item .feature-text p {
            font-size: 0.87rem;
            color: var(--text-secondary);
            margin: 0;
        }

        /* ===== Steps ===== */
        .steps-row {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
            position: relative;
        }
        .step-card {
            text-align: left;
            padding: 32px 28px;
            background-color: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-card);
            transition: var(--transition);
        }
        .step-card:hover {
            border-color: var(--accent-red);
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .step-number {
            font-size: 3rem;
            font-weight: 900;
            color: var(--accent-red);
            line-height: 1;
            margin-bottom: 16px;
            font-family: 'SF Mono','Consolas',monospace;
        }
        .step-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 10px;
        }
        .step-card p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin: 0;
        }

        /* ===== Stats ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .stat-item {
            text-align: center;
            padding: 36px 20px;
            background-color: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-card);
            transition: var(--transition);
        }
        .stat-item:hover {
            border-color: var(--accent-red);
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .stat-number {
            font-size: 2.8rem;
            font-weight: 900;
            color: var(--accent-gold);
            font-family: 'SF Mono','Consolas',monospace;
            line-height: 1.1;
            margin-bottom: 8px;
        }
        .stat-label {
            font-size: 0.9rem;
            color: var(--text-secondary);
            font-weight: 500;
        }

        /* ===== Testimonials ===== */
        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .testimonial-card {
            background-color: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-card);
            padding: 28px;
            display: flex;
            flex-direction: column;
            gap: 16px;
            transition: var(--transition);
        }
        .testimonial-card:hover {
            border-color: var(--accent-red);
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .testimonial-card .quote {
            font-size: 0.95rem;
            color: var(--text-primary);
            line-height: 1.65;
        }
        .testimonial-card .rating {
            color: var(--accent-gold);
            font-size: 0.85rem;
            letter-spacing: 2px;
        }
        .testimonial-card .author {
            font-size: 0.82rem;
            color: var(--text-secondary);
            font-weight: 500;
        }

        /* ===== Scenarios ===== */
        .scenario-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .scenario-card {
            background-color: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-card);
            padding: 28px 22px;
            text-align: center;
            transition: var(--transition);
        }
        .scenario-card:hover {
            border-color: var(--accent-red);
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .scenario-card .scenario-icon {
            font-size: 2rem;
            color: var(--accent-red);
            margin-bottom: 14px;
        }
        .scenario-card h3 {
            font-size: 1.02rem;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .scenario-card p {
            font-size: 0.85rem;
            color: var(--text-secondary);
            margin: 0;
        }

        /* ===== News ===== */
        .news-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
        }
        .news-card {
            display: flex;
            gap: 16px;
            background-color: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-card);
            padding: 18px;
            transition: var(--transition);
        }
        .news-card:hover {
            border-color: var(--accent-red);
            transform: translateY(-2px);
            box-shadow: var(--shadow-card);
        }
        .news-card img {
            width: 140px;
            height: 100px;
            object-fit: cover;
            border-radius: var(--radius-sm);
            flex-shrink: 0;
        }
        .news-card .news-info {
            flex: 1;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }
        .news-card .news-title {
            font-size: 0.98rem;
            font-weight: 700;
            line-height: 1.45;
            margin-bottom: 6px;
        }
        .news-card .news-meta {
            font-size: 0.78rem;
            color: var(--text-secondary);
            display: flex;
            gap: 12px;
            align-items: center;
        }
        .news-card .news-tag {
            font-size: 0.7rem;
            color: var(--accent-red);
            font-weight: 600;
            background-color: rgba(255,58,61,0.12);
            padding: 3px 8px;
            border-radius: 999px;
        }

        /* ===== Progress ===== */
        .progress-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
        }
        .progress-item {
            margin-bottom: 22px;
        }
        .progress-item .progress-label {
            display: flex;
            justify-content: space-between;
            font-size: 0.9rem;
            font-weight: 600;
            margin-bottom: 8px;
        }
        .progress-item .progress-value {
            color: var(--accent-gold);
            font-family: 'SF Mono','Consolas',monospace;
        }
        .progress-bar-custom {
            height: 8px;
            background-color: rgba(255,255,255,0.06);
            border-radius: 999px;
            overflow: hidden;
        }
        .progress-bar-custom .fill {
            height: 100%;
            background-color: var(--accent-red);
            border-radius: 999px;
            transition: width 1.2s cubic-bezier(0.22,1,0.36,1);
        }
        .progress-bar-custom .fill-gold {
            background-color: var(--accent-gold);
        }

        /* ===== Ranking ===== */
        .ranking-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .ranking-item {
            display: flex;
            align-items: center;
            gap: 18px;
            background-color: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-card);
            padding: 16px 20px;
            transition: var(--transition);
        }
        .ranking-item:hover {
            border-color: var(--accent-red);
            transform: translateX(6px);
            box-shadow: var(--shadow-card);
        }
        .ranking-number {
            font-size: 1.6rem;
            font-weight: 900;
            color: var(--accent-gold);
            width: 48px;
            text-align: center;
            font-family: 'SF Mono','Consolas',monospace;
            flex-shrink: 0;
        }
        .ranking-item img {
            width: 90px;
            height: 60px;
            object-fit: cover;
            border-radius: 8px;
            flex-shrink: 0;
        }
        .ranking-item .ranking-info {
            flex: 1;
        }
        .ranking-item .ranking-title {
            font-size: 0.95rem;
            font-weight: 700;
            margin-bottom: 4px;
        }
        .ranking-item .ranking-meta {
            font-size: 0.78rem;
            color: var(--text-secondary);
            display: flex;
            gap: 14px;
        }
        .ranking-item .ranking-tag {
            font-size: 0.7rem;
            color: var(--accent-red);
            font-weight: 600;
            background-color: rgba(255,58,61,0.12);
            padding: 4px 10px;
            border-radius: 999px;
            white-space: nowrap;
        }

        /* ===== Category Entry ===== */
        .category-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 20px;
        }
        .category-card {
            background-color: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-card);
            padding: 24px 18px;
            text-align: center;
            transition: var(--transition);
            cursor: pointer;
            display: block;
        }
        .category-card:hover {
            border-color: var(--accent-red);
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            color: var(--accent-red);
        }
        .category-card .cat-icon {
            font-size: 1.8rem;
            color: var(--accent-red);
            margin-bottom: 10px;
        }
        .category-card h3 {
            font-size: 0.95rem;
            font-weight: 700;
            margin: 0;
        }

        /* ===== Membership ===== */
        .membership-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .membership-item {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 18px 22px;
            background-color: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-sm);
            transition: var(--transition);
        }
        .membership-item:hover {
            border-color: var(--accent-red);
            background-color: rgba(255,58,61,0.04);
        }
        .membership-item .ms-icon {
            font-size: 1.4rem;
            color: var(--accent-gold);
            flex-shrink: 0;
        }
        .membership-item .ms-text h4 {
            font-size: 0.95rem;
            font-weight: 700;
            margin: 0 0 4px;
        }
        .membership-item .ms-text p {
            font-size: 0.85rem;
            color: var(--text-secondary);
            margin: 0;
        }

        /* ===== Guide ===== */
        .guide-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .guide-item {
            display: flex;
            gap: 14px;
            align-items: flex-start;
            padding: 14px 18px;
            background-color: rgba(255,255,255,0.02);
            border-radius: var(--radius-sm);
            border-left: 3px solid var(--accent-red);
        }
        .guide-item .guide-num {
            font-weight: 900;
            color: var(--accent-red);
            font-family: 'SF Mono','Consolas',monospace;
            font-size: 1rem;
            flex-shrink: 0;
        }
        .guide-item p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.55;
        }

        /* ===== FAQ ===== */
        .faq-list .accordion-item {
            background-color: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-sm);
            margin-bottom: 12px;
            overflow: hidden;
        }
        .faq-list .accordion-button {
            background-color: transparent;
            color: var(--text-primary);
            font-weight: 700;
            font-size: 0.98rem;
            padding: 20px 24px;
            border: none;
            box-shadow: none;
            transition: var(--transition);
        }
        .faq-list .accordion-button:not(.collapsed) {
            background-color: rgba(255,58,61,0.06);
            color: var(--accent-red);
            box-shadow: none;
        }
        .faq-list .accordion-button:focus {
            box-shadow: none;
            outline: 2px solid var(--accent-red);
            outline-offset: -2px;
        }
        .faq-list .accordion-button::after {
            filter: invert(0.7);
            transition: transform 0.3s ease;
        }
        .faq-list .accordion-body {
            color: var(--text-secondary);
            font-size: 0.92rem;
            padding: 16px 24px 20px;
            line-height: 1.65;
        }

        /* ===== CTA ===== */
        .cta-section {
            background-color: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: 20px;
            padding: 56px 48px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 200px;
            height: 200px;
            background-color: rgba(255,58,61,0.1);
            border-radius: 50%;
            pointer-events: none;
        }
        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -80px;
            left: -60px;
            width: 220px;
            height: 220px;
            background-color: rgba(232,179,75,0.06);
            border-radius: 50%;
            pointer-events: none;
        }
        .cta-section .cta-title {
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 16px;
            position: relative;
            z-index: 2;
        }
        .cta-section .cta-desc {
            font-size: 1rem;
            color: var(--text-secondary);
            max-width: 560px;
            margin: 0 auto 28px;
            position: relative;
            z-index: 2;
        }
        .cta-section .cta-actions {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
            position: relative;
            z-index: 2;
        }

        /* ===== Footer ===== */
        .site-footer {
            background-color: var(--bg-secondary);
            border-top: 1px solid var(--border-subtle);
            padding: 60px 0 32px;
            margin-top: 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand h3 {
            font-size: 1.2rem;
            font-weight: 800;
            margin-bottom: 12px;
        }
        .footer-brand h3 span {
            color: var(--accent-red);
        }
        .footer-brand p {
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.65;
        }
        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 700;
            margin-bottom: 16px;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul li a {
            font-size: 0.85rem;
            color: var(--text-secondary);
        }
        .footer-col ul li a:hover {
            color: var(--accent-red);
        }
        .footer-bottom {
            border-top: 1px solid var(--border-subtle);
            padding-top: 24px;
            text-align: center;
            font-size: 0.8rem;
            color: var(--text-secondary);
        }

        /* ===== Animations ===== */
        @keyframes fadeUp {
            from { opacity: 0; transform: translateY(30px); }
            to { opacity: 1; transform: translateY(0); }
        }
        .fade-up {
            animation: fadeUp 0.8s ease-out forwards;
        }
        .fade-up-delay-1 { animation-delay: 0.1s; opacity: 0; }
        .fade-up-delay-2 { animation-delay: 0.2s; opacity: 0; }
        .fade-up-delay-3 { animation-delay: 0.3s; opacity: 0; }

        /* ===== Responsive ===== */
        @media (max-width: 1199px) {
            .hero-title { font-size: 3.2rem; }
            .stats-grid { grid-template-columns: repeat(2, 1fr); }
            .scenario-grid { grid-template-columns: repeat(2, 1fr); }
            .category-grid { grid-template-columns: repeat(3, 1fr); }
        }
        @media (max-width: 991px) {
            .section-block { padding: 60px 0; }
            .section-title { font-size: 2.1rem; }
            .hero-content { grid-template-columns: 1fr; gap: 36px; }
            .hero-title { font-size: 2.8rem; }
            .solution-grid { grid-template-columns: 1fr; gap: 32px; }
            .steps-row { grid-template-columns: 1fr; gap: 20px; }
            .testimonial-grid { grid-template-columns: 1fr; }
            .progress-grid { grid-template-columns: 1fr; }
            .news-grid { grid-template-columns: 1fr; }
            .footer-grid { grid-template-columns: 1fr 1fr; }
            .navbar-links { display: none; }
            .navbar-toggle { display: block; }
            .navbar-links.mobile-open {
                display: flex;
                flex-direction: column;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background-color: var(--bg-primary);
                padding: 20px 24px;
                gap: 16px;
                border-bottom: 1px solid var(--border-subtle);
            }
        }
        @media (max-width: 767px) {
            .hero-title { font-size: 2.2rem; }
            .hero-subtitle { font-size: 1rem; }
            .hero-actions { flex-direction: column; }
            .hero-actions .btn-custom { width: 100%; justify-content: center; }
            .stats-grid { grid-template-columns: 1fr 1fr; gap: 16px; }
            .scenario-grid { grid-template-columns: 1fr; }
            .category-grid { grid-template-columns: repeat(2, 1fr); }
            .news-card { flex-direction: column; }
            .news-card img { width: 100%; height: 160px; }
            .ranking-item { flex-wrap: wrap; }
            .ranking-item img { width: 100%; height: 120px; }
            .footer-grid { grid-template-columns: 1fr; gap: 28px; }
            .cta-section { padding: 36px 24px; }
            .section-title { font-size: 1.8rem; }
        }
        @media (max-width: 519px) {
            .container { padding-left: 16px; padding-right: 16px; }
            .hero-title { font-size: 1.8rem; }
            .stats-grid { grid-template-columns: 1fr; }
            .category-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
            .navbar-custom { padding: 12px 16px; }
            .navbar-logo { font-size: 1rem; }
            .navbar-cta .btn-custom { padding: 8px 16px; font-size: 0.8rem; }
            .section-block { padding: 48px 0; }
        }

/* roulang page: category1 */
:root {
  --bg-primary: #0E0C12;
  --bg-secondary: #141116;
  --bg-card: #1C1821;
  --border-subtle: rgba(255,255,255,0.08);
  --accent-red: #FF3A3D;
  --accent-red-hover: #d92b2e;
  --accent-gold: #E8B34B;
  --text-primary: #F5F2F7;
  --text-secondary: #B9B3C2;
  --font-sans: 'PingFang SC','Microsoft YaHei','Noto Sans SC',system-ui,-apple-system,sans-serif;
  --radius-card: 16px;
  --radius-btn: 999px;
  --radius-sm: 12px;
  --shadow-card: 0 20px 40px rgba(0,0,0,0.45);
  --shadow-hover: 0 28px 56px rgba(0,0,0,0.6);
  --transition: all 0.3s cubic-bezier(0.4,0,0.2,1);
  --container-max: 1200px;
}
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  margin: 0;
  padding: 0;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}
a { text-decoration: none; color: inherit; transition: var(--transition); }
img { max-width: 100%; height: auto; display: block; }
button { font-family: inherit; }
input, textarea, select { font-family: inherit; }
.container { max-width: var(--container-max); padding-left: 24px; padding-right: 24px; }

/* Section Base */
.section-block {
  padding: 80px 0;
  position: relative;
}
.section-block.bg-alt {
  background-color: var(--bg-secondary);
}
.section-label {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-red);
  margin-bottom: 12px;
}
.section-title {
  font-size: 2.6rem;
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.01em;
  margin-bottom: 16px;
}
.section-title .highlight {
  color: var(--accent-red);
}
.section-desc {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 720px;
  line-height: 1.7;
}
.section-header {
  margin-bottom: 48px;
}

/* Buttons */
.btn-custom {
  border-radius: var(--radius-btn);
  padding: 14px 32px;
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 0.02em;
  transition: var(--transition);
  border: 2px solid transparent;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.btn-primary-custom {
  background-color: var(--accent-red);
  color: #fff;
  border-color: var(--accent-red);
}
.btn-primary-custom:hover {
  background-color: var(--accent-red-hover);
  border-color: var(--accent-red-hover);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 12px 28px rgba(255,58,61,0.35);
}
.btn-primary-custom:active { transform: translateY(0); }
.btn-outline-custom {
  background-color: transparent;
  color: var(--text-primary);
  border-color: rgba(255,255,255,0.25);
}
.btn-outline-custom:hover {
  background-color: rgba(255,255,255,0.06);
  border-color: var(--accent-red);
  color: var(--accent-red);
  transform: translateY(-2px);
}
.btn-sm-custom {
  padding: 10px 22px;
  font-size: 0.88rem;
}

/* Header / Nav */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: rgba(14,12,18,0.88);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-subtle);
  transition: var(--transition);
}
.site-header.scrolled {
  background-color: rgba(14,12,18,0.96);
  box-shadow: 0 4px 24px rgba(0,0,0,0.5);
}
.navbar-custom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  max-width: var(--container-max);
  margin: 0 auto;
  gap: 24px;
}
.navbar-logo {
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  white-space: nowrap;
}
.navbar-logo span {
  color: var(--accent-red);
}
.navbar-links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
  margin: 0;
  padding: 0;
}
.navbar-links a {
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--text-secondary);
  position: relative;
  padding: 4px 0;
  white-space: nowrap;
}
.navbar-links a:hover,
.navbar-links a.active {
  color: var(--text-primary);
}
.navbar-links a.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: var(--accent-red);
  border-radius: 1px;
}
.navbar-links a:hover::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: var(--accent-red);
  border-radius: 1px;
}
.navbar-badge {
  display: inline-block;
  background-color: rgba(255,58,61,0.15);
  color: var(--accent-red);
  font-size: 0.7rem;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 999px;
  letter-spacing: 0.04em;
  white-space: nowrap;
}
.navbar-cta {
  display: flex;
  align-items: center;
  gap: 16px;
}
.navbar-toggle {
  display: none;
  background: transparent;
  border: none;
  color: var(--text-primary);
  font-size: 1.5rem;
  cursor: pointer;
  transition: var(--transition);
}
.navbar-toggle:hover {
  color: var(--accent-red);
}
@media (max-width: 991.98px) {
  .navbar-toggle {
    display: block;
  }
  .navbar-links {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: rgba(14,12,18,0.98);
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    padding: 16px 24px;
    border-bottom: 1px solid var(--border-subtle);
    display: none;
  }
  .navbar-links.show {
    display: flex;
  }
  .navbar-links li {
    width: 100%;
  }
  .navbar-links a {
    display: block;
    padding: 12px 0;
    width: 100%;
    font-size: 1rem;
  }
  .navbar-links a.active::after,
  .navbar-links a:hover::after {
    display: none;
  }
  .navbar-cta {
    gap: 10px;
  }
  .navbar-badge {
    display: none;
  }
}

/* Category Hero */
.category-hero {
  padding: 48px 0 32px;
  background-color: var(--bg-primary);
}
.breadcrumb-custom {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 16px;
  flex-wrap: wrap;
}
.breadcrumb-custom a {
  color: var(--text-secondary);
}
.breadcrumb-custom a:hover {
  color: var(--accent-red);
}
.breadcrumb-custom .sep {
  color: rgba(255,255,255,0.3);
}
.breadcrumb-custom .current {
  color: var(--text-primary);
  font-weight: 600;
}
.category-hero h1 {
  font-size: 3rem;
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.01em;
  margin-bottom: 12px;
}
.category-hero h1 .highlight {
  color: var(--accent-red);
}
.category-hero .lead {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 720px;
  line-height: 1.7;
}

/* Filter Tabs */
.filter-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}
.filter-tab {
  background-color: transparent;
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  padding: 8px 18px;
  border-radius: var(--radius-btn);
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
}
.filter-tab:hover {
  border-color: rgba(255,255,255,0.25);
  color: var(--text-primary);
}
.filter-tab.active {
  background-color: var(--accent-red);
  border-color: var(--accent-red);
  color: #fff;
}
.filter-tab:focus-visible {
  outline: 2px solid var(--accent-red);
  outline-offset: 2px;
}

/* Sort Bar */
.sort-bar {
  background-color: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-card);
  padding: 16px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 32px;
}
.sort-result {
  font-size: 0.9rem;
  color: var(--text-secondary);
}
.sort-result strong {
  color: var(--text-primary);
  font-weight: 700;
}
.sort-options {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}
.sort-btn {
  background: transparent;
  border: 1px solid transparent;
  color: var(--text-secondary);
  padding: 6px 14px;
  border-radius: var(--radius-btn);
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
}
.sort-btn:hover {
  color: var(--text-primary);
  background-color: rgba(255,255,255,0.04);
}
.sort-btn.active {
  background-color: rgba(255,58,61,0.12);
  border-color: var(--accent-red);
  color: var(--accent-red);
}
.sort-btn:focus-visible {
  outline: 2px solid var(--accent-red);
  outline-offset: 2px;
}

/* Video Grid */
.video-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 40px;
}
.video-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-card);
  overflow: hidden;
  transition: var(--transition);
  box-shadow: 0 10px 20px rgba(0,0,0,0.2);
  display: flex;
  flex-direction: column;
}
.video-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(255,58,61,0.35);
}
.video-thumb {
  position: relative;
  aspect-ratio: 16/9;
  background-color: #2a2430;
  overflow: hidden;
}
.video-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s cubic-bezier(0.4,0,0.2,1);
}
.video-card:hover .video-thumb img {
  transform: scale(1.05);
}
.video-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  background-color: rgba(14,12,18,0.72);
  backdrop-filter: blur(8px);
  color: #fff;
  font-size: 0.7rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 999px;
  letter-spacing: 0.04em;
  display: flex;
  align-items: center;
  gap: 4px;
}
.video-badge.gold {
  background-color: rgba(232,179,75,0.18);
  color: var(--accent-gold);
}
.video-badge.red {
  background-color: rgba(255,58,61,0.18);
  color: var(--accent-red);
}
.video-duration {
  position: absolute;
  bottom: 12px;
  right: 12px;
  background-color: rgba(14,12,18,0.8);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 3px 8px;
  border-radius: 6px;
}
.video-play {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background-color: rgba(255,58,61,0.9);
  color: #fff;
  border: none;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  cursor: pointer;
  transition: var(--transition);
  opacity: 0;
  pointer-events: none;
}
.video-card:hover .video-play {
  opacity: 1;
  pointer-events: auto;
  transform: translate(-50%, -50%) scale(1.1);
}
.video-body {
  padding: 16px 18px;
  display: flex;
  flex-direction: column;
  flex: 1;
}
.video-title {
  font-size: 0.98rem;
  font-weight: 700;
  line-height: 1.4;
  color: var(--text-primary);
  margin-bottom: 8px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  min-height: 2.8em;
}
.video-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.78rem;
  color: var(--text-secondary);
  margin-top: auto;
}
.video-meta .heat {
  color: var(--accent-gold);
  font-weight: 600;
}
.video-meta .update {
  color: var(--text-secondary);
}
.video-card .btn-play {
  margin-top: 12px;
  width: 100%;
  background-color: rgba(255,255,255,0.06);
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
  border-radius: var(--radius-sm);
  padding: 8px 12px;
  font-size: 0.82rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  transition: var(--transition);
  cursor: pointer;
}
.video-card .btn-play:hover {
  background-color: var(--accent-red);
  border-color: var(--accent-red);
  color: #fff;
}
.load-more-wrap {
  text-align: center;
  margin: 20px 0 0;
}

/* Article List */
.article-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.article-item {
  background-color: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-card);
  padding: 14px;
  display: flex;
  gap: 16px;
  transition: var(--transition);
}
.article-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card);
  border-color: rgba(255,255,255,0.15);
}
.article-thumb {
  width: 120px;
  height: 80px;
  border-radius: 10px;
  overflow: hidden;
  flex-shrink: 0;
  background-color: #2a2430;
}
.article-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.article-item:hover .article-thumb img {
  transform: scale(1.05);
}
.article-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.article-title {
  font-size: 0.95rem;
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 6px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.article-meta {
  font-size: 0.75rem;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 12px;
}
.article-meta .tag {
  color: var(--accent-red);
  font-weight: 600;
}

/* Guide List */
.guide-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.guide-item {
  background-color: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-card);
  padding: 18px 20px;
  display: flex;
  align-items: flex-start;
  gap: 14px;
  transition: var(--transition);
}
.guide-item:hover {
  border-color: rgba(255,58,61,0.3);
  transform: translateY(-2px);
}
.guide-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background-color: rgba(255,58,61,0.12);
  color: var(--accent-red);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  flex-shrink: 0;
}
.guide-item h5 {
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 4px;
  color: var(--text-primary);
}
.guide-item p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin: 0;
  line-height: 1.5;
}

/* Rating Section */
.rating-wrap {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 24px;
  align-items: stretch;
}
.rating-summary {
  background-color: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-card);
  padding: 24px;
  text-align: center;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.rating-big {
  font-size: 3.2rem;
  font-weight: 800;
  color: var(--accent-gold);
  line-height: 1;
  margin-bottom: 8px;
}
.rating-stars {
  color: var(--accent-gold);
  font-size: 1.2rem;
  margin-bottom: 8px;
}
.rating-count {
  font-size: 0.85rem;
  color: var(--text-secondary);
}
.rating-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.rating-item {
  background-color: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 16px 18px;
}
.rating-item p {
  font-size: 0.85rem;
  color: var(--text-primary);
  margin: 0 0 8px;
  line-height: 1.5;
}
.rating-item .user {
  font-size: 0.75rem;
  color: var(--text-secondary);
}
.rating-bar {
  height: 6px;
  background-color: rgba(255,255,255,0.08);
  border-radius: 999px;
  overflow: hidden;
  margin-top: 8px;
}
.rating-bar span {
  display: block;
  height: 100%;
  background-color: var(--accent-gold);
  border-radius: 999px;
  width: 0;
  transition: width 1s ease;
}

/* Metric Strip */
.metric-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.metric-item {
  background-color: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-card);
  padding: 22px 18px;
  text-align: center;
  transition: var(--transition);
}
.metric-item:hover {
  border-color: rgba(255,58,61,0.3);
  transform: translateY(-4px);
  box-shadow: 0 12px 24px rgba(0,0,0,0.3);
}
.metric-number {
  font-size: 2.2rem;
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 6px;
}
.metric-number .unit {
  font-size: 1rem;
  font-weight: 600;
  color: var(--accent-red);
  margin-left: 2px;
}
.metric-label {
  font-size: 0.82rem;
  color: var(--text-secondary);
  font-weight: 500;
}
.metric-item.gold .metric-number {
  color: var(--accent-gold);
}
.metric-item.red .metric-number {
  color: var(--accent-red);
}
.metric-item.white .metric-number {
  color: var(--text-primary);
}

/* CTA Panel */
.cta-panel {
  background: linear-gradient(135deg, rgba(255,58,61,0.06), rgba(255,58,61,0.0)), var(--bg-card);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 24px;
  padding: 48px 40px;
  position: relative;
  overflow: hidden;
}
.cta-panel::before {
  content: '';
  position: absolute;
  top: -40%;
  right: -20%;
  width: 350px;
  height: 350px;
  border-radius: 50%;
  background-color: rgba(255,58,61,0.08);
  pointer-events: none;
}
.cta-panel .cta-content {
  position: relative;
  z-index: 1;
}
.cta-panel h2 {
  font-size: 2.2rem;
  font-weight: 800;
  margin-bottom: 12px;
  letter-spacing: -0.01em;
}
.cta-panel p {
  font-size: 1rem;
  color: var(--text-secondary);
  max-width: 560px;
  margin-bottom: 24px;
}
.cta-form {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  max-width: 540px;
}
.cta-form input {
  flex: 1;
  min-width: 200px;
  background-color: rgba(14,12,18,0.7);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-btn);
  padding: 14px 20px;
  color: var(--text-primary);
  outline: none;
  font-size: 0.9rem;
  transition: var(--transition);
}
.cta-form input::placeholder {
  color: var(--text-secondary);
  opacity: 0.7;
}
.cta-form input:focus {
  border-color: var(--accent-red);
  box-shadow: 0 0 0 3px rgba(255,58,61,0.15);
}

/* FAQ */
.faq-wrap {
  max-width: 800px;
  margin: 0 auto;
}
.accordion-custom .accordion-item {
  background-color: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm) !important;
  margin-bottom: 12px;
  overflow: hidden;
}
.accordion-custom .accordion-button {
  background-color: transparent;
  color: var(--text-primary);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 18px 22px;
  border: none;
  border-radius: 0;
  box-shadow: none;
}
.accordion-custom .accordion-button:not(.collapsed) {
  background-color: rgba(255,58,61,0.06);
  color: var(--text-primary);
  box-shadow: none;
}
.accordion-custom .accordion-button:focus {
  box-shadow: none;
  outline: none;
}
.accordion-custom .accordion-button::after {
  filter: invert(1);
  transition: var(--transition);
}
.accordion-custom .accordion-button:not(.collapsed)::after {
  transform: rotate(180deg);
}
.accordion-custom .accordion-body {
  font-size: 0.88rem;
  color: var(--text-secondary);
  padding: 0 22px 18px;
  line-height: 1.7;
}

/* Footer */
.site-footer {
  background-color: var(--bg-secondary);
  border-top: 1px solid var(--border-subtle);
  padding: 56px 0 24px;
  margin-top: 40px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 32px;
  margin-bottom: 40px;
}
.footer-brand h3 {
  font-size: 1.4rem;
  font-weight: 800;
  letter-spacing: -0.01em;
  margin-bottom: 12px;
}
.footer-brand h3 span {
  color: var(--accent-red);
}
.footer-brand p {
  font-size: 0.88rem;
  color: var(--text-secondary);
  max-width: 300px;
  line-height: 1.7;
  margin: 0;
}
.footer-col h4 {
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 16px;
}
.footer-col ul {
  list-style: none;
  padding: 0;
  margin: 0;
}
.footer-col li {
  margin-bottom: 10px;
}
.footer-col a {
  font-size: 0.85rem;
  color: var(--text-secondary);
  transition: var(--transition);
}
.footer-col a:hover {
  color: var(--accent-red);
}
.footer-bottom {
  border-top: 1px solid var(--border-subtle);
  padding-top: 20px;
  font-size: 0.8rem;
  color: var(--text-secondary);
  text-align: center;
}
.footer-bottom span {
  color: var(--text-secondary);
}

/* Animations */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Responsive */
@media (max-width: 991.98px) {
  .video-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .article-list {
    grid-template-columns: 1fr;
  }
  .rating-wrap {
    grid-template-columns: 1fr;
  }
  .metric-strip {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 24px;
  }
}
@media (max-width: 767.98px) {
  .section-block {
    padding: 56px 0;
  }
  .section-title {
    font-size: 1.9rem;
  }
  .category-hero h1 {
    font-size: 2.4rem;
  }
  .video-grid {
    grid-template-columns: 1fr;
  }
  .guide-list {
    grid-template-columns: 1fr;
  }
  .cta-panel {
    padding: 32px 24px;
  }
  .cta-panel h2 {
    font-size: 1.8rem;
  }
}
@media (max-width: 575.98px) {
  .section-title {
    font-size: 1.6rem;
  }
  .category-hero h1 {
    font-size: 2rem;
  }
  .sort-bar {
    flex-direction: column;
    align-items: flex-start;
  }
  .metric-strip {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .navbar-custom {
    padding: 12px 16px;
  }
  .btn-custom {
    padding: 12px 20px;
    font-size: 0.88rem;
  }
  .btn-primary-custom.btn-sm-custom {
    padding: 8px 16px;
    font-size: 0.78rem;
  }
}

/* roulang page: index */
:root {
            --color-ink: #1A1410;
            --color-ink-soft: #231B15;
            --color-carmine: #C84B31;
            --color-carmine-dark: #B8402A;
            --color-carmine-glow: rgba(200, 75, 49, 0.18);
            --color-amber: #C68A3D;
            --color-amber-soft: rgba(198, 138, 61, 0.15);
            --color-bone: #FAF7F2;
            --color-bone-deep: #F3EDE6;
            --color-text: #2A2320;
            --color-text-muted: #7A706A;
            --color-text-light: #C9BFB5;
            --color-border: rgba(26, 20, 16, 0.08);
            --color-border-strong: rgba(26, 20, 16, 0.16);
            --radius-card: 12px;
            --radius-btn: 8px;
            --radius-input: 4px;
            --shadow-hover: 0 12px 32px rgba(26, 20, 16, 0.16);
            --font-title: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
            --font-body: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
            --transition-fast: 0.25s ease;
            --transition-card: 0.3s cubic-bezier(0.2, 0.8, 0.2, 1);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-body);
            font-size: 16px;
            line-height: 1.85;
            color: var(--color-text);
            background-color: var(--color-bone);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

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

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

        a:hover {
            color: var(--color-carmine-dark);
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--color-amber);
            outline-offset: 3px;
            border-radius: 4px;
        }

        button {
            font-family: var(--font-body);
        }

        .container {
            max-width: 1200px;
            padding-left: 24px;
            padding-right: 24px;
        }

        @media (max-width: 575.98px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

        /* ====== Header / Nav ====== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1050;
            background: rgba(26, 20, 16, 0.96);
            border-bottom: 2px solid var(--color-carmine);
            transition: background var(--transition-fast), box-shadow var(--transition-fast);
        }

        .site-header.scrolled {
            background: rgba(26, 20, 16, 0.99);
            box-shadow: 0 4px 24px rgba(26, 20, 16, 0.35);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: nowrap;
            min-height: 68px;
            gap: 16px;
        }

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
            min-width: 118px;
            color: #FAF7F2;
            text-decoration: none;
            font-family: var(--font-title);
            font-weight: 800;
            font-size: 1.18rem;
            letter-spacing: -0.02em;
            white-space: nowrap;
        }

        .brand-logo:hover {
            color: var(--color-amber);
        }

        .brand-logo .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 34px;
            height: 34px;
            background: var(--color-carmine);
            border-radius: 8px;
            color: #fff;
            font-size: 0.95rem;
            flex-shrink: 0;
            transition: background var(--transition-fast);
        }

        .brand-logo:hover .logo-icon {
            background: var(--color-carmine-dark);
        }

        .nav-desktop {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: nowrap;
        }

        .nav-desktop a {
            color: #FAF7F2;
            text-decoration: none;
            font-size: 0.92rem;
            font-weight: 500;
            padding: 8px 14px;
            border-radius: 6px;
            transition: color var(--transition-fast), background var(--transition-fast);
            white-space: nowrap;
        }

        .nav-desktop a:hover {
            color: var(--color-amber);
            background: rgba(198, 138, 61, 0.08);
        }

        .nav-desktop a.active {
            color: var(--color-amber);
            font-weight: 700;
        }

        .nav-desktop .nav-badge {
            display: inline-block;
            background: var(--color-carmine);
            color: #fff;
            font-size: 0.65rem;
            font-weight: 700;
            padding: 1px 7px;
            border-radius: 4px;
            margin-left: 5px;
            letter-spacing: 0.04em;
            animation: pulse-badge 1.8s ease-in-out infinite;
        }

        @keyframes pulse-badge {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.7; transform: scale(0.95); }
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .countdown-badge {
            display: flex;
            align-items: center;
            gap: 6px;
            color: var(--color-amber);
            font-size: 0.78rem;
            font-weight: 600;
            white-space: nowrap;
            font-family: 'SF Mono', 'Consolas', 'Monaco', monospace;
            letter-spacing: 0.01em;
        }

        .countdown-badge .countdown-dot {
            display: inline-block;
            width: 7px;
            height: 7px;
            background: var(--color-carmine);
            border-radius: 50%;
            animation: pulse-dot 2s ease-in-out infinite;
        }

        @keyframes pulse-dot {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.45; transform: scale(0.7); }
        }

        .btn-nav-cta {
            background: var(--color-carmine);
            color: #fff;
            border: none;
            padding: 9px 20px;
            border-radius: var(--radius-btn);
            font-weight: 700;
            font-size: 0.88rem;
            letter-spacing: 0.02em;
            transition: background var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
            white-space: nowrap;
        }

        .btn-nav-cta:hover {
            background: var(--color-carmine-dark);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 4px 16px rgba(200, 75, 49, 0.4);
        }

        .btn-nav-cta:active {
            transform: translateY(0);
        }

        .navbar-toggler-custom {
            display: none;
            background: none;
            border: 1px solid rgba(250, 247, 242, 0.25);
            border-radius: 6px;
            width: 42px;
            height: 38px;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            flex-direction: column;
            gap: 5px;
            transition: border-color var(--transition-fast);
        }

        .navbar-toggler-custom:hover {
            border-color: var(--color-amber);
        }

        .navbar-toggler-custom span {
            display: block;
            width: 20px;
            height: 2px;
            background: #FAF7F2;
            border-radius: 2px;
            transition: all var(--transition-fast);
        }

        .navbar-toggler-custom.open span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

        .navbar-toggler-custom.open span:nth-child(2) {
            opacity: 0;
            transform: scaleX(0);
        }

        .navbar-toggler-custom.open span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        .mobile-nav-overlay {
            display: none;
            position: fixed;
            top: 68px;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(26, 20, 16, 0.98);
            z-index: 1049;
            flex-direction: column;
            padding: 24px 20px;
            gap: 6px;
            overflow-y: auto;
        }

        .mobile-nav-overlay.show {
            display: flex;
        }

        .mobile-nav-overlay a {
            color: #FAF7F2;
            text-decoration: none;
            font-size: 1.05rem;
            font-weight: 500;
            padding: 14px 16px;
            border-radius: 8px;
            border-bottom: 1px solid rgba(250, 247, 242, 0.08);
            transition: background var(--transition-fast), color var(--transition-fast);
        }

        .mobile-nav-overlay a:hover {
            background: rgba(198, 138, 61, 0.08);
            color: var(--color-amber);
        }

        .mobile-nav-overlay .mobile-nav-cta {
            margin-top: 16px;
            text-align: center;
            background: var(--color-carmine);
            color: #fff;
            font-weight: 700;
            padding: 16px 20px;
            border-radius: var(--radius-btn);
            border-bottom: none;
        }

        .mobile-nav-overlay .mobile-nav-cta:hover {
            background: var(--color-carmine-dark);
            color: #fff;
        }

        .mobile-countdown {
            color: var(--color-amber);
            font-size: 0.9rem;
            font-weight: 600;
            padding: 10px 16px;
            font-family: 'SF Mono', 'Consolas', 'Monaco', monospace;
            border-bottom: 1px solid rgba(250, 247, 242, 0.1);
            margin-bottom: 8px;
        }

        @media (max-width: 991.98px) {
            .nav-desktop {
                display: none;
            }
            .navbar-toggler-custom {
                display: flex;
            }
            .countdown-badge {
                display: none;
            }
            .btn-nav-cta {
                display: none;
            }
            .header-inner {
                min-height: 60px;
            }
            .mobile-nav-overlay {
                top: 60px;
            }
        }

        @media (max-width: 575.98px) {
            .brand-logo {
                font-size: 1.02rem;
                gap: 7px;
            }
            .brand-logo .logo-icon {
                width: 28px;
                height: 28px;
                font-size: 0.8rem;
            }
        }

        /* ====== Buttons ====== */
        .btn-carmine {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--color-carmine);
            color: #fff;
            border: none;
            padding: 13px 28px;
            border-radius: var(--radius-btn);
            font-weight: 700;
            font-size: 0.95rem;
            letter-spacing: 0.02em;
            transition: background var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
            cursor: pointer;
            text-decoration: none;
        }

        .btn-carmine:hover {
            background: var(--color-carmine-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(200, 75, 49, 0.35);
        }

        .btn-carmine:active {
            transform: translateY(0);
        }

        .btn-carmine .arrow {
            transition: transform var(--transition-fast);
        }

        .btn-carmine:hover .arrow {
            transform: translateX(4px);
        }

        .btn-outline-bone {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: transparent;
            color: #FAF7F2;
            border: 1.5px solid rgba(250, 247, 242, 0.6);
            padding: 12px 26px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 0.95rem;
            letter-spacing: 0.02em;
            transition: border-color var(--transition-fast), color var(--transition-fast), background var(--transition-fast);
            cursor: pointer;
            text-decoration: none;
        }

        .btn-outline-bone:hover {
            border-color: var(--color-amber);
            color: var(--color-amber);
            background: rgba(198, 138, 61, 0.06);
        }

        .btn-outline-dark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: transparent;
            color: var(--color-text);
            border: 1.5px solid var(--color-border-strong);
            padding: 12px 26px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 0.95rem;
            letter-spacing: 0.02em;
            transition: border-color var(--transition-fast), color var(--transition-fast), background var(--transition-fast);
            cursor: pointer;
            text-decoration: none;
        }

        .btn-outline-dark:hover {
            border-color: var(--color-carmine);
            color: var(--color-carmine);
            background: var(--color-carmine-glow);
        }

        /* ====== Sections Common ====== */
        section {
            position: relative;
        }

        .section-pad {
            padding: 80px 0;
        }

        @media (max-width: 767.98px) {
            .section-pad {
                padding: 52px 0;
            }
        }

        .section-label {
            display: inline-block;
            font-size: 0.78rem;
            font-weight: 700;
            letter-spacing: 0.12em;
            text-transform: uppercase;
            color: var(--color-carmine);
            margin-bottom: 12px;
        }

        .section-title {
            font-family: var(--font-title);
            font-weight: 800;
            font-size: 1.85rem;
            letter-spacing: -0.02em;
            color: var(--color-ink);
            margin-bottom: 16px;
            line-height: 1.35;
        }

        .section-desc {
            font-size: 0.98rem;
            color: var(--color-text-muted);
            line-height: 1.9;
            max-width: 640px;
        }

        @media (max-width: 767.98px) {
            .section-title {
                font-size: 1.45rem;
            }
            .section-desc {
                font-size: 0.9rem;
            }
        }

        /* ====== Hero ====== */
        .hero-section {
            padding-top: 140px;
            padding-bottom: 80px;
            background: var(--color-ink);
            color: #FAF7F2;
            overflow: hidden;
            position: relative;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            width: 48%;
            height: 100%;
            background: url('/assets/images/71f1e8a688f7b370.jpg') center/cover no-repeat;
            opacity: 0.12;
            pointer-events: none;
        }

        .hero-section::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--color-carmine) 0%, var(--color-amber) 50%, var(--color-carmine) 100%);
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 48px;
            align-items: center;
            position: relative;
            z-index: 2;
        }

        @media (max-width: 991.98px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 36px;
            }
            .hero-section::before {
                width: 100%;
                opacity: 0.07;
            }
        }

        .hero-title {
            font-family: var(--font-title);
            font-weight: 800;
            font-size: 2.6rem;
            line-height: 1.3;
            letter-spacing: -0.03em;
            margin-bottom: 20px;
            color: #FAF7F2;
        }

        .hero-title .highlight-amber {
            color: var(--color-amber);
        }

        .hero-title .highlight-carmine {
            color: var(--color-carmine);
        }

        .hero-subtitle {
            font-size: 1.05rem;
            line-height: 1.95;
            color: var(--color-text-light);
            max-width: 540px;
            margin-bottom: 28px;
        }

        .hero-cta-group {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            margin-bottom: 28px;
        }

        .hero-trust-tags {
            display: flex;
            gap: 18px;
            flex-wrap: wrap;
            align-items: center;
            padding-top: 20px;
            border-top: 1px solid rgba(250, 247, 242, 0.12);
        }

        .hero-trust-tag {
            display: flex;
            align-items: center;
            gap: 7px;
            font-size: 0.83rem;
            color: var(--color-text-light);
            font-weight: 500;
        }

        .hero-trust-tag i {
            color: var(--color-amber);
            font-size: 0.9rem;
        }

        .hero-visual-card {
            background: rgba(26, 20, 16, 0.7);
            border: 1px solid rgba(250, 247, 242, 0.1);
            border-radius: 16px;
            padding: 28px 24px;
            display: flex;
            flex-direction: column;
            gap: 14px;
            position: relative;
            min-height: 320px;
            justify-content: center;
        }

        .hero-visual-card::before {
            content: '';
            position: absolute;
            top: -1px;
            left: -1px;
            right: -1px;
            bottom: -1px;
            border-radius: 16px;
            background: linear-gradient(135deg, rgba(200, 75, 49, 0.25) 0%, transparent 40%, rgba(198, 138, 61, 0.2) 100%);
            pointer-events: none;
            z-index: 0;
        }

        .hero-visual-card .visual-bg {
            position: absolute;
            inset: 0;
            border-radius: 16px;
            background: url('/assets/images/761c3c3345a71823.jpg') center/cover no-repeat;
            opacity: 0.22;
            z-index: 0;
        }

        .hero-visual-card .visual-content {
            position: relative;
            z-index: 1;
        }

        .hero-visual-head {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.78rem;
            font-weight: 600;
            color: var(--color-amber);
            letter-spacing: 0.06em;
            text-transform: uppercase;
            margin-bottom: 6px;
        }

        .hero-visual-head .live-dot {
            width: 8px;
            height: 8px;
            background: var(--color-carmine);
            border-radius: 50%;
            animation: pulse-dot 2s ease-in-out infinite;
        }

        .hero-visual-title {
            font-family: var(--font-title);
            font-weight: 700;
            font-size: 1.15rem;
            color: #FAF7F2;
            margin-bottom: 4px;
        }

        .hero-visual-desc {
            font-size: 0.85rem;
            color: var(--color-text-light);
            line-height: 1.7;
        }

        .hero-mini-metrics {
            display: flex;
            gap: 20px;
            margin-top: 12px;
            flex-wrap: wrap;
        }

        .hero-mini-metric {
            text-align: left;
        }

        .hero-mini-metric .num {
            font-family: 'SF Mono', 'Consolas', 'Monaco', monospace;
            font-weight: 700;
            font-size: 1.3rem;
            color: var(--color-amber);
        }

        .hero-mini-metric .lbl {
            font-size: 0.72rem;
            color: var(--color-text-light);
            letter-spacing: 0.04em;
        }

        @media (max-width: 767.98px) {
            .hero-section {
                padding-top: 110px;
                padding-bottom: 48px;
            }
            .hero-title {
                font-size: 1.75rem;
            }
            .hero-subtitle {
                font-size: 0.92rem;
            }
            .hero-visual-card {
                min-height: 240px;
                padding: 22px 18px;
            }
        }

        @media (max-width: 575.98px) {
            .hero-title {
                font-size: 1.45rem;
            }
            .hero-trust-tags {
                gap: 12px;
            }
            .hero-trust-tag {
                font-size: 0.75rem;
            }
        }

        /* ====== Data trust strip ====== */
        .trust-strip {
            background: var(--color-bone);
            border-bottom: 1px solid var(--color-border);
            padding: 32px 0;
        }

        .trust-strip-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 20px;
        }

        .trust-metric {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .trust-metric .metric-value {
            font-family: 'SF Mono', 'Consolas', 'Monaco', monospace;
            font-weight: 700;
            font-size: 1.6rem;
            color: var(--color-carmine);
            line-height: 1.2;
        }

        .trust-metric .metric-label {
            font-size: 0.83rem;
            color: var(--color-text-muted);
            line-height: 1.4;
        }

        .trust-divider {
            width: 1px;
            height: 36px;
            background: var(--color-border-strong);
        }

        @media (max-width: 767.98px) {
            .trust-strip-inner {
                flex-direction: row;
                flex-wrap: wrap;
                gap: 16px 12px;
            }
            .trust-divider {
                display: none;
            }
            .trust-metric {
                width: calc(50% - 12px);
            }
            .trust-metric .metric-value {
                font-size: 1.3rem;
            }
            .trust-metric .metric-label {
                font-size: 0.75rem;
            }
        }

        /* ====== Pain points ====== */
        .pain-section {
            background: var(--color-bone);
        }

        .pain-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 18px;
            margin-top: 36px;
        }

        .pain-card {
            background: #fff;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 24px 22px;
            transition: border-color var(--transition-card), box-shadow var(--transition-card), transform var(--transition-card);
            position: relative;
        }

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

        .pain-card .pain-index {
            font-family: 'SF Mono', 'Consolas', 'Monaco', monospace;
            font-weight: 700;
            font-size: 2rem;
            color: rgba(200, 75, 49, 0.25);
            line-height: 1;
            margin-bottom: 12px;
        }

        .pain-card .pain-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            background: var(--color-carmine-glow);
            border-radius: 8px;
            color: var(--color-carmine);
            font-size: 1rem;
            margin-bottom: 14px;
        }

        .pain-card h3 {
            font-family: var(--font-title);
            font-weight: 700;
            font-size: 1.1rem;
            color: var(--color-ink);
            margin-bottom: 8px;
        }

        .pain-card p {
            font-size: 0.88rem;
            color: var(--color-text-muted);
            line-height: 1.75;
            margin-bottom: 0;
        }

        @media (max-width: 991.98px) {
            .pain-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }
        }

        @media (max-width: 575.98px) {
            .pain-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ====== Solution ====== */
        .solution-section {
            background: var(--color-bone-deep);
        }

        .solution-grid {
            display: grid;
            grid-template-columns: 1fr 0.85fr;
            gap: 48px;
            align-items: center;
            margin-top: 36px;
        }

        .solution-content .solution-lead {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--color-ink);
            margin-bottom: 22px;
            line-height: 1.8;
        }

        .solution-items {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .solution-item {
            display: flex;
            align-items: flex-start;
            gap: 16px;
            padding: 18px 20px;
            background: #fff;
            border: 1px solid var(--color-border);
            border-radius: 10px;
            transition: border-color var(--transition-card), transform var(--transition-card), box-shadow var(--transition-card);
        }

        .solution-item:hover {
            border-color: var(--color-amber);
            transform: translateX(4px);
            box-shadow: 0 4px 16px rgba(26, 20, 16, 0.08);
        }

        .solution-item .item-num {
            font-family: 'SF Mono', 'Consolas', 'Monaco', monospace;
            font-weight: 700;
            font-size: 1.2rem;
            color: var(--color-amber);
            flex-shrink: 0;
            line-height: 1.4;
        }

        .solution-item h4 {
            font-family: var(--font-title);
            font-weight: 700;
            font-size: 1rem;
            color: var(--color-ink);
            margin-bottom: 4px;
        }

        .solution-item p {
            font-size: 0.87rem;
            color: var(--color-text-muted);
            margin-bottom: 0;
            line-height: 1.7;
        }

        .solution-visual {
            position: relative;
            border-radius: 16px;
            overflow: hidden;
            min-height: 380px;
            background: url('/assets/images/761c3c3345a71823.jpg') center/cover no-repeat;
            border: 1px solid var(--color-border);
        }

        .solution-visual::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 40%, rgba(26, 20, 16, 0.75) 100%);
        }

        .solution-visual-overlay {
            position: absolute;
            bottom: 24px;
            left: 24px;
            right: 24px;
            z-index: 2;
            color: #FAF7F2;
        }

        .solution-visual-overlay h4 {
            font-family: var(--font-title);
            font-weight: 700;
            font-size: 1.15rem;
            margin-bottom: 6px;
        }

        .solution-visual-overlay p {
            font-size: 0.85rem;
            color: rgba(250, 247, 242, 0.85);
            margin-bottom: 0;
        }

        @media (max-width: 991.98px) {
            .solution-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .solution-visual {
                min-height: 260px;
                order: -1;
            }
        }

        /* ====== Steps ====== */
        .steps-section {
            background: var(--color-bone);
        }

        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 0;
            margin-top: 40px;
            position: relative;
        }

        .steps-grid::before {
            content: '';
            position: absolute;
            top: 32px;
            left: 12.5%;
            right: 12.5%;
            height: 2px;
            background: var(--color-border-strong);
        }

        .step-item {
            text-align: center;
            padding: 0 16px;
            position: relative;
            z-index: 1;
        }

        .step-num {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 56px;
            height: 56px;
            background: var(--color-ink);
            color: var(--color-amber);
            border-radius: 50%;
            font-family: 'SF Mono', 'Consolas', 'Monaco', monospace;
            font-weight: 700;
            font-size: 1.1rem;
            margin-bottom: 20px;
            position: relative;
            z-index: 2;
        }

        .step-item h3 {
            font-family: var(--font-title);
            font-weight: 700;
            font-size: 1.05rem;
            color: var(--color-ink);
            margin-bottom: 8px;
        }

        .step-item p {
            font-size: 0.86rem;
            color: var(--color-text-muted);
            line-height: 1.7;
            margin-bottom: 0;
        }

        @media (max-width: 767.98px) {
            .steps-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .steps-grid::before {
                display: none;
            }
            .step-item {
                padding: 0;
                display: flex;
                flex-direction: column;
                align-items: center;
            }
            .step-num {
                margin-bottom: 12px;
            }
        }

        /* ====== Category entries ====== */
        .category-section {
            background: var(--color-bone-deep);
        }

        .category-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 18px;
            margin-top: 36px;
        }

        .category-card {
            position: relative;
            border-radius: var(--radius-card);
            overflow: hidden;
            aspect-ratio: 16/10;
            background: var(--color-ink);
            text-decoration: none;
            display: block;
            transition: transform var(--transition-card), box-shadow var(--transition-card);
            border: 1px solid transparent;
        }

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

        .category-card img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            opacity: 0.72;
            transition: opacity var(--transition-card), transform var(--transition-card);
        }

        .category-card:hover img {
            opacity: 0.85;
            transform: scale(1.03);
        }

        .category-card::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 30%, rgba(26, 20, 16, 0.85) 100%);
            pointer-events: none;
        }

        .category-card .cat-info {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            padding: 18px 20px;
            z-index: 2;
            color: #FAF7F2;
        }

        .category-card .cat-name {
            font-family: var(--font-title);
            font-weight: 700;
            font-size: 1.1rem;
            margin-bottom: 4px;
        }

        .category-card .cat-count {
            font-size: 0.78rem;
            color: rgba(250, 247, 242, 0.75);
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .category-card .cat-count .badge-cat {
            background: var(--color-carmine);
            color: #fff;
            font-size: 0.65rem;
            font-weight: 700;
            padding: 2px 8px;
            border-radius: 4px;
        }

        @media (max-width: 991.98px) {
            .category-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 575.98px) {
            .category-grid {
                grid-template-columns: 1fr;
            }
            .category-card {
                aspect-ratio: 16/9;
            }
        }

        /* ====== Hot content ====== */
        .hot-section {
            background: var(--color-bone);
        }

        .hot-main-card {
            display: grid;
            grid-template-columns: 1.1fr 1fr;
            gap: 24px;
            background: #fff;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            overflow: hidden;
            margin-bottom: 20px;
            transition: border-color var(--transition-card), box-shadow var(--transition-card), transform var(--transition-card);
        }

        .hot-main-card:hover {
            border-color: var(--color-carmine);
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }

        .hot-main-card .hot-main-img {
            min-height: 280px;
            background: url('/assets/images/628ff42704bc14ce.webp') center/cover no-repeat;
            position: relative;
        }

        .hot-main-card .hot-main-img::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, transparent 60%, rgba(250, 247, 242, 0.9) 100%);
        }

        .hot-main-card .hot-main-body {
            padding: 28px 24px 24px 8px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .hot-main-body .hot-tags {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
            margin-bottom: 10px;
        }

        .hot-tags .tag-badge {
            display: inline-block;
            background: var(--color-carmine-glow);
            color: var(--color-carmine);
            font-size: 0.72rem;
            font-weight: 700;
            padding: 3px 10px;
            border-radius: 4px;
            letter-spacing: 0.03em;
        }

        .hot-tags .tag-badge.amber {
            background: var(--color-amber-soft);
            color: var(--color-amber);
        }

        .hot-main-body h3 {
            font-family: var(--font-title);
            font-weight: 700;
            font-size: 1.3rem;
            color: var(--color-ink);
            margin-bottom: 8px;
        }

        .hot-main-body p {
            font-size: 0.88rem;
            color: var(--color-text-muted);
            line-height: 1.75;
            margin-bottom: 12px;
        }

        .hot-rating {
            display: flex;
            align-items: center;
            gap: 6px;
            color: var(--color-amber);
            font-size: 0.85rem;
            font-weight: 600;
        }

        .hot-rating .stars {
            display: flex;
            gap: 2px;
        }

        .hot-rating .stars i {
            font-size: 0.8rem;
        }

        .hot-small-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 18px;
            margin-top: 20px;
        }

        .hot-mini-card {
            background: #fff;
            border: 1px solid var(--color-border);
            border-radius: 10px;
            overflow: hidden;
            transition: border-color var(--transition-card), box-shadow var(--transition-card), transform var(--transition-card);
            display: flex;
            flex-direction: column;
        }

        .hot-mini-card:hover {
            border-color: var(--color-carmine);
            box-shadow: 0 4px 16px rgba(26, 20, 16, 0.1);
            transform: translateY(-3px);
        }

        .hot-mini-card .mini-img {
            aspect-ratio: 16/9;
            background-size: cover;
            background-position: center;
            position: relative;
        }

        .hot-mini-card .mini-img::after {
            content: '\f04b';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            color: #fff;
            font-size: 1.4rem;
            text-shadow: 0 2px 12px rgba(0,0,0,0.5);
            opacity: 0;
            transition: opacity var(--transition-fast);
        }

        .hot-mini-card:hover .mini-img::after {
            opacity: 1;
        }

        .hot-mini-card .mini-body {
            padding: 14px 16px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .hot-mini-card .mini-title {
            font-family: var(--font-title);
            font-weight: 700;
            font-size: 0.92rem;
            color: var(--color-ink);
            margin-bottom: 4px;
            line-height: 1.5;
        }

        .hot-mini-card .mini-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 8px;
            margin-top: auto;
            padding-top: 6px;
        }

        .hot-mini-card .mini-meta .mini-tags {
            display: flex;
            gap: 5px;
            flex-wrap: wrap;
        }

        .hot-mini-card .mini-tag {
            font-size: 0.65rem;
            font-weight: 700;
            padding: 2px 7px;
            border-radius: 3px;
            background: var(--color-bone-deep);
            color: var(--color-text-muted);
        }

        .hot-mini-card .mini-tag.hd {
            background: var(--color-carmine-glow);
            color: var(--color-carmine);
        }

        .hot-mini-card .mini-tag.hot {
            background: var(--color-amber-soft);
            color: var(--color-amber);
        }

        .hot-mini-card .mini-rating {
            color: var(--color-amber);
            font-size: 0.72rem;
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 3px;
            white-space: nowrap;
        }

        @media (max-width: 991.98px) {
            .hot-main-card {
                grid-template-columns: 1fr;
            }
            .hot-main-card .hot-main-img::after {
                background: linear-gradient(180deg, transparent 50%, rgba(250, 247, 242, 0.85) 100%);
            }
            .hot-main-card .hot-main-body {
                padding: 20px 24px 24px;
            }
            .hot-small-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 575.98px) {
            .hot-small-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ====== Data achievement ====== */
        .achievement-section {
            background: var(--color-ink);
            color: #FAF7F2;
        }

        .achievement-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
            margin-top: 36px;
        }

        .achievement-item {
            text-align: center;
            padding: 24px 16px;
            border: 1px solid rgba(250, 247, 242, 0.1);
            border-radius: 12px;
            transition: border-color var(--transition-card), transform var(--transition-card);
        }

        .achievement-item:hover {
            border-color: var(--color-amber);
            transform: translateY(-3px);
        }

        .achievement-item .ach-num {
            font-family: 'SF Mono', 'Consolas', 'Monaco', monospace;
            font-weight: 700;
            font-size: 2.6rem;
            color: var(--color-amber);
            line-height: 1.2;
            margin-bottom: 6px;
        }

        .achievement-item .ach-label {
            font-size: 0.88rem;
            color: var(--color-text-light);
            letter-spacing: 0.04em;
        }

        .achievement-note {
            font-size: 0.75rem;
            color: rgba(201, 191, 181, 0.6);
            margin-top: 20px;
            text-align: center;
            letter-spacing: 0.04em;
        }

        @media (max-width: 767.98px) {
            .achievement-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }
            .achievement-item .ach-num {
                font-size: 1.9rem;
            }
        }

        @media (max-width: 575.98px) {
            .achievement-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ====== Feature experience ====== */
        .feature-section {
            background: var(--color-bone);
        }

        .feature-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 18px;
            margin-top: 36px;
        }

        .feature-card {
            background: #fff;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 28px 24px;
            text-align: center;
            transition: border-color var(--transition-card), box-shadow var(--transition-card), transform var(--transition-card);
        }

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

        .feature-card .feat-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 52px;
            height: 52px;
            background: var(--color-carmine-glow);
            border-radius: 12px;
            color: var(--color-carmine);
            font-size: 1.3rem;
            margin-bottom: 16px;
        }

        .feature-card h3 {
            font-family: var(--font-title);
            font-weight: 700;
            font-size: 1.05rem;
            color: var(--color-ink);
            margin-bottom: 8px;
        }

        .feature-card p {
            font-size: 0.87rem;
            color: var(--color-text-muted);
            line-height: 1.75;
            margin-bottom: 0;
        }

        @media (max-width: 767.98px) {
            .feature-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ====== Testimonials ====== */
        .testimonial-section {
            background: var(--color-bone-deep);
        }

        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
            margin-top: 36px;
        }

        .testimonial-card {
            background: #fff;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 26px 24px;
            position: relative;
            transition: border-color var(--transition-card), box-shadow var(--transition-card), transform var(--transition-card);
        }

        .testimonial-card:hover {
            border-color: var(--color-carmine);
            box-shadow: 0 6px 24px rgba(26, 20, 16, 0.1);
            transform: translateY(-3px);
        }

        .testimonial-card .quote-mark {
            font-family: Georgia, serif;
            font-size: 3.5rem;
            line-height: 1;
            color: rgba(200, 75, 49, 0.2);
            position: absolute;
            top: 14px;
            left: 20px;
            pointer-events: none;
        }

        .testimonial-card .test-rating {
            display: flex;
            gap: 3px;
            color: var(--color-amber);
            font-size: 0.8rem;
            margin-bottom: 12px;
            margin-top: 8px;
        }

        .testimonial-card .test-text {
            font-size: 0.9rem;
            color: var(--color-text-muted);
            line-height: 1.8;
            margin-bottom: 14px;
        }

        .testimonial-card .test-user {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.83rem;
            color: var(--color-text);
            font-weight: 600;
        }

        .testimonial-card .test-device {
            font-size: 0.72rem;
            color: var(--color-text-muted);
            font-weight: 400;
            margin-left: auto;
        }

        @media (max-width: 991.98px) {
            .testimonial-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
        }

        /* ====== Audience ====== */
        .audience-section {
            background: var(--color-bone);
        }

        .audience-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
            margin-top: 36px;
        }

        .audience-item {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 20px 18px;
            background: #fff;
            border: 1px solid var(--color-border);
            border-radius: 10px;
            transition: border-color var(--transition-card), transform var(--transition-card);
        }

        .audience-item:hover {
            border-color: var(--color-amber);
            transform: translateY(-3px);
        }

        .audience-item .aud-badge {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-width: 42px;
            height: 42px;
            background: var(--color-amber-soft);
            border-radius: 50%;
            color: var(--color-amber);
            font-size: 0.95rem;
            flex-shrink: 0;
        }

        .audience-item h4 {
            font-family: var(--font-title);
            font-weight: 700;
            font-size: 0.92rem;
            color: var(--color-ink);
            margin-bottom: 4px;
        }

        .audience-item p {
            font-size: 0.8rem;
            color: var(--color-text-muted);
            line-height: 1.65;
            margin-bottom: 0;
        }

        @media (max-width: 991.98px) {
            .audience-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 575.98px) {
            .audience-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ====== News / Updates ====== */
        .news-section {
            background: var(--color-bone-deep);
        }

        .news-list {
            display: flex;
            flex-direction: column;
            gap: 0;
            margin-top: 32px;
            border-top: 1px solid var(--color-border-strong);
        }

        .news-item {
            display: flex;
            align-items: center;
            gap: 20px;
            padding: 20px 4px;
            border-bottom: 1px solid var(--color-border);
            transition: background var(--transition-fast), padding var(--transition-fast);
            text-decoration: none;
            color: inherit;
            border-radius: 4px;
        }

        .news-item:hover {
            background: rgba(198, 138, 61, 0.05);
            padding-left: 16px;
        }

        .news-date {
            font-family: 'SF Mono', 'Consolas', 'Monaco', monospace;
            font-weight: 600;
            font-size: 0.78rem;
            color: var(--color-carmine);
            flex-shrink: 0;
            min-width: 64px;
            letter-spacing: 0.03em;
        }

        .news-body {
            flex: 1;
        }

        .news-body h4 {
            font-family: var(--font-title);
            font-weight: 700;
            font-size: 0.98rem;
            color: var(--color-ink);
            margin-bottom: 4px;
            line-height: 1.5;
        }

        .news-body p {
            font-size: 0.84rem;
            color: var(--color-text-muted);
            margin-bottom: 0;
            line-height: 1.7;
        }

        .news-arrow {
            color: var(--color-carmine);
            font-size: 0.9rem;
            flex-shrink: 0;
            transition: transform var(--transition-fast);
        }

        .news-item:hover .news-arrow {
            transform: translateX(4px);
        }

        @media (max-width: 576px) {
            .news-item {
                flex-wrap: wrap;
                gap: 8px;
            }
            .news-date {
                min-width: auto;
            }
            .news-body {
                width: 100%;
            }
        }

        /* ====== Data strip ====== */
        .data-strip {
            background: var(--color-ink);
            padding: 40px 0;
        }

        .data-strip-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 20px;
        }

        .data-strip-item {
            display: flex;
            align-items: baseline;
            gap: 8px;
        }

        .data-strip-item .ds-num {
            font-family: 'SF Mono', 'Consolas', 'Monaco', monospace;
            font-weight: 700;
            font-size: 1.7rem;
            color: var(--color-amber);
        }

        .data-strip-item .ds-unit {
            font-size: 0.85rem;
            color: var(--color-text-light);
        }

        .data-strip-item .ds-label {
            font-size: 0.72rem;
            color: rgba(201, 191, 181, 0.7);
            letter-spacing: 0.04em;
            display: block;
        }

        .data-strip-divider {
            width: 1px;
            height: 36px;
            background: rgba(198, 138, 61, 0.4);
        }

        @media (max-width: 767.98px) {
            .data-strip-inner {
                gap: 14px 10px;
            }
            .data-strip-divider {
                display: none;
            }
            .data-strip-item {
                width: calc(50% - 10px);
                flex-wrap: wrap;
            }
            .data-strip-item .ds-num {
                font-size: 1.3rem;
            }
        }

        /* ====== CTA ====== */
        .cta-section {
            background: var(--color-bone);
            padding: 70px 0;
            position: relative;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: var(--color-carmine);
        }

        .cta-box {
            background: #fff;
            border: 2px solid var(--color-amber);
            border-radius: 16px;
            padding: 48px 36px;
            text-align: center;
            max-width: 760px;
            margin: 0 auto;
        }

        .cta-box h2 {
            font-family: var(--font-title);
            font-weight: 800;
            font-size: 1.9rem;
            color: var(--color-ink);
            margin-bottom: 14px;
            letter-spacing: -0.02em;
        }

        .cta-box p {
            font-size: 0.98rem;
            color: var(--color-text-muted);
            line-height: 1.85;
            margin-bottom: 26px;
            max-width: 560px;
            margin-left: auto;
            margin-right: auto;
        }

        .cta-btn-group {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        @media (max-width: 767.98px) {
            .cta-section {
                padding: 48px 0;
            }
            .cta-box {
                padding: 32px 20px;
            }
            .cta-box h2 {
                font-size: 1.4rem;
            }
        }

        /* ====== FAQ ====== */
        .faq-section {
            background: var(--color-bone);
        }

        .faq-accordion {
            max-width: 800px;
            margin: 36px auto 0;
        }

        .faq-accordion .accordion-item {
            background: #fff;
            border: 1px solid var(--color-border);
            border-radius: 10px !important;
            margin-bottom: 10px;
            overflow: hidden;
            transition: border-color var(--transition-fast);
        }

        .faq-accordion .accordion-item:focus-within {
            border-color: var(--color-amber);
        }

        .faq-accordion .accordion-button {
            background: #fff;
            color: var(--color-ink);
            font-weight: 700;
            font-size: 0.95rem;
            padding: 18px 20px;
            border: none;
            box-shadow: none !important;
            border-radius: 10px !important;
            font-family: var(--font-title);
            transition: color var(--transition-fast), background var(--transition-fast);
        }

        .faq-accordion .accordion-button:not(.collapsed) {
            background: var(--color-bone-deep);
            color: var(--color-carmine);
            box-shadow: none;
        }

        .faq-accordion .accordion-button:focus {
            box-shadow: none;
            border-color: transparent;
        }

        .faq-accordion .accordion-button::after {
            content: '\f067';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            background-image: none;
            width: 16px;
            height: 16px;
            font-size: 0.75rem;
            color: var(--color-text-muted);
            transition: transform var(--transition-fast), color var(--transition-fast);
        }

        .faq-accordion .accordion-button:not(.collapsed)::after {
            content: '\f068';
            transform: none;
            color: var(--color-carmine);
        }

        .faq-accordion .accordion-body {
            padding: 16px 20px 20px;
            font-size: 0.88rem;
            color: var(--color-text-muted);
            line-height: 1.8;
            background: #fff;
        }

        /* ====== Footer ====== */
        .site-footer {
            background: var(--color-ink);
            color: var(--color-text-light);
            padding: 60px 0 28px;
            border-top: 2px solid var(--color-carmine);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.3fr 1fr 1fr 1fr;
            gap: 36px;
            margin-bottom: 36px;
        }

        .footer-brand .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            color: #FAF7F2;
            font-family: var(--font-title);
            font-weight: 800;
            font-size: 1.05rem;
            text-decoration: none;
            margin-bottom: 12px;
        }

        .footer-brand .footer-logo:hover {
            color: var(--color-amber);
        }

        .footer-brand .footer-logo .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 30px;
            height: 30px;
            background: var(--color-carmine);
            border-radius: 6px;
            color: #fff;
            font-size: 0.8rem;
            flex-shrink: 0;
        }

        .footer-brand .footer-desc {
            font-size: 0.82rem;
            line-height: 1.8;
            color: rgba(201, 191, 181, 0.7);
            margin-bottom: 14px;
            max-width: 280px;
        }

        .footer-social {
            display: flex;
            gap: 10px;
        }

        .footer-social a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 34px;
            height: 34px;
            border: 1px solid rgba(250, 247, 242, 0.2);
            border-radius: 6px;
            color: rgba(250, 247, 242, 0.7);
            font-size: 0.85rem;
            transition: border-color var(--transition-fast), color var(--transition-fast), background var(--transition-fast);
            text-decoration: none;
        }

        .footer-social a:hover {
            border-color: var(--color-amber);
            color: var(--color-amber);
            background: rgba(198, 138, 61, 0.08);
        }

        .footer-col h4 {
            font-family: var(--font-title);
            font-weight: 700;
            font-size: 0.9rem;
            color: #FAF7F2;
            margin-bottom: 14px;
            letter-spacing: 0.04em;
        }

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

        .footer-col ul li {
            margin-bottom: 8px;
        }

        .footer-col ul li a {
            color: rgba(201, 191, 181, 0.7);
            text-decoration: none;
            font-size: 0.82rem;
            transition: color var(--transition-fast), padding var(--transition-fast);
        }

        .footer-col ul li a:hover {
            color: var(--color-amber);
            padding-left: 4px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(250, 247, 242, 0.1);
            padding-top: 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 10px;
            font-size: 0.75rem;
            color: rgba(201, 191, 181, 0.5);
        }

        .footer-bottom .domain-text {
            color: rgba(201, 191, 181, 0.55);
        }

        @media (max-width: 991.98px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
        }

        @media (max-width: 575.98px) {
            .site-footer {
                padding: 40px 0 20px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 22px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        /* ====== Animations ====== */
        @keyframes heroFadeUp {
            from {
                opacity: 0;
                transform: translateY(24px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .hero-title,
        .hero-subtitle,
        .hero-cta-group,
        .hero-trust-tags {
            animation: heroFadeUp 0.7s cubic-bezier(0.2, 0.8, 0.2, 1) both;
        }

        .hero-subtitle {
            animation-delay: 0.12s;
        }

        .hero-cta-group {
            animation-delay: 0.24s;
        }

        .hero-trust-tags {
            animation-delay: 0.36s;
        }

        .hero-visual-card {
            animation: heroFadeUp 0.7s cubic-bezier(0.2, 0.8, 0.2, 1) 0.2s both;
        }

/* roulang page: category1 */
:root {
            --bg-dark: #1A1410;
            --bg-dark-soft: #231B15;
            --bg-bone: #FAF7F2;
            --bg-bone-deep: #F3EDE6;
            --bg-card-light: #FFFFFF;
            --accent-carmine: #C84B31;
            --accent-carmine-dark: #B8402A;
            --accent-carmine-glow: rgba(200, 75, 49, 0.18);
            --accent-amber: #C68A3D;
            --accent-amber-soft: rgba(198, 138, 61, 0.15);
            --text-dark: #2A2320;
            --text-muted: #7A706A;
            --text-light: #FAF7F2;
            --text-light-muted: #C9BFB5;
            --border-subtle: rgba(26, 20, 16, 0.08);
            --border-strong: rgba(26, 20, 16, 0.16);
            --border-light: rgba(250, 247, 242, 0.12);
            --radius-card: 12px;
            --radius-btn: 8px;
            --radius-input: 4px;
            --shadow-hover: 0 12px 32px rgba(26, 20, 16, 0.16);
            --shadow-card-hover-dark: 0 16px 40px rgba(0, 0, 0, 0.4);
            --font-title: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
            --font-body: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
            --transition-fast: 0.25s ease;
            --transition-card: 0.3s cubic-bezier(0.2, 0.8, 0.2, 1);
            --container-max: 1200px;
            --section-padding: 72px;
        }

        * { box-sizing: border-box; }
        html { scroll-behavior: smooth; }
        body {
            font-family: var(--font-body);
            background-color: var(--bg-bone);
            color: var(--text-dark);
            line-height: 1.7;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }
        a { text-decoration: none; color: inherit; transition: var(--transition-fast); }
        img { max-width: 100%; height: auto; display: block; }
        button { font-family: inherit; cursor: pointer; }
        input, textarea, select { font-family: inherit; }
        .container { max-width: var(--container-max); padding-left: 24px; padding-right: 24px; }

        /* ===== Section Base ===== */
        .section-block { padding: var(--section-padding) 0; position: relative; }
        .section-block.bg-alt { background-color: var(--bg-bone-deep); }
        .section-block.bg-dark { background-color: var(--bg-dark); color: var(--text-light); }
        .section-label {
            display: inline-block;
            font-size: 0.78rem;
            font-weight: 700;
            letter-spacing: 0.14em;
            text-transform: uppercase;
            color: var(--accent-carmine);
            margin-bottom: 10px;
        }
        .section-title {
            font-size: 2.2rem;
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: -0.01em;
            margin-bottom: 14px;
            color: inherit;
        }
        .section-title .highlight { color: var(--accent-carmine); }
        .section-desc {
            font-size: 1.02rem;
            color: var(--text-muted);
            max-width: 760px;
            line-height: 1.8;
        }
        .section-header { margin-bottom: 40px; }
        .bg-dark .section-desc { color: var(--text-light-muted); }
        .bg-dark .section-title { color: var(--text-light); }

        /* ===== Buttons ===== */
        .btn-custom {
            border-radius: var(--radius-btn);
            padding: 14px 32px;
            font-weight: 700;
            font-size: 0.95rem;
            letter-spacing: 0.02em;
            transition: var(--transition-fast);
            border: 2px solid transparent;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .btn-carmine {
            background-color: var(--accent-carmine);
            color: #fff;
            border-color: var(--accent-carmine);
        }
        .btn-carmine:hover {
            background-color: var(--accent-carmine-dark);
            border-color: var(--accent-carmine-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 10px 24px rgba(200, 75, 49, 0.35);
        }
        .btn-carmine:active { transform: translateY(0); }
        .btn-outline-carmine {
            background-color: transparent;
            color: var(--accent-carmine);
            border-color: var(--accent-carmine);
        }
        .btn-outline-carmine:hover {
            background-color: var(--accent-carmine);
            border-color: var(--accent-carmine);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 10px 24px rgba(200, 75, 49, 0.3);
        }
        .btn-outline-light-custom {
            background-color: transparent;
            color: var(--text-light);
            border-color: rgba(250, 247, 242, 0.35);
        }
        .btn-outline-light-custom:hover {
            background-color: rgba(250, 247, 242, 0.08);
            border-color: var(--accent-amber);
            color: var(--accent-amber);
            transform: translateY(-2px);
        }
        .btn-sm-custom { padding: 8px 18px; font-size: 0.85rem; }

        /* ===== Header / Nav ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background-color: rgba(26, 20, 16, 0.9);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 2px solid var(--accent-carmine);
            transition: var(--transition-fast);
        }
        .site-header.scrolled {
            background-color: rgba(26, 20, 16, 0.98);
            box-shadow: 0 6px 30px rgba(0, 0, 0, 0.45);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 14px 0;
            gap: 20px;
        }
        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.18rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            color: var(--text-light);
            white-space: nowrap;
            min-width: 118px;
        }
        .brand-logo .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background-color: var(--accent-carmine);
            color: #fff;
            font-size: 0.9rem;
            flex-shrink: 0;
        }
        .brand-logo:hover { color: var(--accent-amber); }
        .nav-desktop {
            display: flex;
            align-items: center;
            gap: 28px;
        }
        .nav-desktop a {
            color: var(--text-light);
            font-size: 0.92rem;
            font-weight: 500;
            padding: 6px 2px;
            position: relative;
            transition: var(--transition-fast);
            white-space: nowrap;
        }
        .nav-desktop a::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: -2px;
            width: 0;
            height: 2px;
            background-color: var(--accent-amber);
            transition: var(--transition-fast);
        }
        .nav-desktop a:hover { color: var(--accent-amber); }
        .nav-desktop a:hover::after { width: 100%; }
        .nav-desktop a.active { color: var(--accent-amber); font-weight: 700; }
        .nav-desktop a.active::after { width: 100%; }
        .nav-badge {
            display: inline-block;
            background-color: var(--accent-carmine);
            color: #fff;
            font-size: 0.6rem;
            font-weight: 800;
            padding: 2px 6px;
            border-radius: 4px;
            margin-left: 4px;
            letter-spacing: 0.05em;
            animation: nav-badge-pulse 2s ease-in-out infinite;
        }
        @keyframes nav-badge-pulse {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.7; transform: scale(0.96); }
        }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-shrink: 0;
        }
        .countdown-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.82rem;
            font-weight: 600;
            color: var(--text-light-muted);
            white-space: nowrap;
            padding: 6px 12px;
            border-radius: 999px;
            border: 1px solid rgba(198, 138, 61, 0.35);
            background-color: rgba(198, 138, 61, 0.08);
        }
        .countdown-badge .countdown-dot {
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background-color: var(--accent-amber);
            animation: dot-pulse 2s ease-in-out infinite;
        }
        .countdown-badge #countdownTime { color: var(--accent-amber); font-weight: 700; letter-spacing: 0.04em; }
        @keyframes dot-pulse {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.4; transform: scale(0.8); }
        }
        .btn-nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background-color: var(--accent-carmine);
            color: #fff;
            font-size: 0.85rem;
            font-weight: 700;
            padding: 10px 20px;
            border-radius: var(--radius-btn);
            border: none;
            transition: var(--transition-fast);
            white-space: nowrap;
        }
        .btn-nav-cta:hover {
            background-color: var(--accent-carmine-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(200, 75, 49, 0.35);
        }
        .navbar-toggler-custom {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: none;
            border: none;
            padding: 8px;
            cursor: pointer;
        }
        .navbar-toggler-custom span {
            display: block;
            width: 24px;
            height: 2px;
            background-color: var(--text-light);
            border-radius: 2px;
            transition: var(--transition-fast);
        }
        .navbar-toggler-custom[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
        .navbar-toggler-custom[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
        .navbar-toggler-custom[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

        /* ===== Category H1 Section ===== */
        .section-category-hero {
            padding: 48px 0 36px;
            background-color: var(--bg-bone);
            border-bottom: 1px solid var(--border-subtle);
        }
        .category-hero-grid {
            display: grid;
            grid-template-columns: 1fr auto;
            gap: 32px;
            align-items: start;
        }
        .category-hero-left h1 {
            font-size: 2.6rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            line-height: 1.2;
            color: var(--text-dark);
            margin-bottom: 20px;
        }
        .category-hero-left h1 .accent { color: var(--accent-carmine); }
        .category-hero-desc {
            font-size: 1rem;
            color: var(--text-muted);
            line-height: 1.85;
            max-width: 780px;
            margin-bottom: 0;
        }
        .category-hero-desc p { margin-bottom: 10px; }
        .category-hero-desc p:last-child { margin-bottom: 0; }
        .category-hero-stats {
            display: flex;
            flex-direction: column;
            gap: 12px;
            background-color: var(--bg-dark);
            border-radius: var(--radius-card);
            padding: 24px 20px;
            min-width: 180px;
            align-self: start;
        }
        .hero-stat-item {
            display: flex;
            align-items: baseline;
            justify-content: space-between;
            gap: 12px;
        }
        .hero-stat-item .stat-num {
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--accent-amber);
            letter-spacing: -0.01em;
            line-height: 1.2;
        }
        .hero-stat-item .stat-label {
            font-size: 0.78rem;
            color: var(--text-light-muted);
            font-weight: 500;
            text-align: right;
        }

        /* ===== Filter Toolbar ===== */
        .section-filter {
            padding: 20px 0;
            background-color: var(--bg-bone);
            border-bottom: 1px solid var(--border-subtle);
            position: sticky;
            top: 68px;
            z-index: 100;
        }
        .filter-toolbar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
        }
        .filter-tags {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: nowrap;
            overflow-x: auto;
            scrollbar-width: thin;
            -webkit-overflow-scrolling: touch;
            padding-bottom: 4px;
        }
        .filter-tag {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 8px 16px;
            border-radius: 999px;
            font-size: 0.82rem;
            font-weight: 600;
            color: var(--text-dark);
            background-color: var(--bg-card-light);
            border: 1px solid var(--border-subtle);
            transition: var(--transition-fast);
            white-space: nowrap;
            cursor: pointer;
            flex-shrink: 0;
        }
        .filter-tag:hover {
            border-color: var(--accent-amber);
            color: var(--accent-amber);
        }
        .filter-tag.active {
            background-color: var(--accent-carmine);
            border-color: var(--accent-carmine);
            color: #fff;
        }
        .filter-tag.filter-tag-all { background-color: var(--accent-carmine); border-color: var(--accent-carmine); color: #fff; }
        .filter-right {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }
        .sort-select-wrapper {
            position: relative;
        }
        .sort-select {
            appearance: none;
            -webkit-appearance: none;
            padding: 9px 36px 9px 16px;
            border-radius: var(--radius-btn);
            border: 1px solid var(--border-strong);
            background-color: var(--bg-card-light);
            font-size: 0.85rem;
            font-weight: 500;
            color: var(--text-dark);
            cursor: pointer;
            transition: var(--transition-fast);
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%237A706A' d='M6 8L0 0h12z'/%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right 14px center;
        }
        .sort-select:hover, .sort-select:focus {
            border-color: var(--accent-amber);
            outline: none;
            box-shadow: 0 0 0 3px var(--accent-carmine-glow);
        }
        .count-badge {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 8px 16px;
            border-radius: 999px;
            background-color: var(--accent-amber-soft);
            color: var(--accent-carmine);
            font-size: 0.82rem;
            font-weight: 700;
            white-space: nowrap;
        }
        .count-badge strong { color: var(--accent-carmine); font-size: 0.9rem; }

        /* ===== Card Grid ===== */
        .section-grid {
            background-color: var(--bg-bone);
            padding-bottom: 56px;
        }
        .card-grid-title {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--text-dark);
            margin-bottom: 24px;
        }
        .card-grid-title .accent { color: var(--accent-carmine); }
        .video-card-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
            gap: 20px;
        }
        .video-card {
            background-color: var(--bg-card-light);
            border-radius: var(--radius-card);
            border: 1px solid var(--border-subtle);
            overflow: hidden;
            transition: var(--transition-card);
            display: flex;
            flex-direction: column;
        }
        .video-card:hover {
            transform: translateY(-4px);
            border-color: var(--accent-carmine);
            box-shadow: var(--shadow-hover);
        }
        .video-card-thumb {
            position: relative;
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background-color: var(--bg-bone-deep);
        }
        .video-card-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition-card);
        }
        .video-card:hover .video-card-thumb img { transform: scale(1.04); }
        .video-card-thumb .overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(26, 20, 16, 0.55) 0%, rgba(26, 20, 16, 0.1) 40%, transparent 60%);
            display: flex;
            align-items: flex-end;
            justify-content: flex-start;
            padding: 12px;
            opacity: 0;
            transition: var(--transition-card);
        }
        .video-card:hover .video-card-thumb .overlay { opacity: 1; }
        .thumb-badges {
            position: absolute;
            top: 10px;
            left: 10px;
            display: flex;
            gap: 6px;
            flex-wrap: wrap;
        }
        .thumb-badge {
            display: inline-block;
            padding: 3px 8px;
            border-radius: 4px;
            font-size: 0.68rem;
            font-weight: 700;
            letter-spacing: 0.04em;
            text-transform: uppercase;
            color: #fff;
        }
        .thumb-badge.badge-hd { background-color: var(--accent-amber); }
        .thumb-badge.badge-new { background-color: var(--accent-carmine); }
        .thumb-badge.badge-hot { background-color: #D45D43; }
        .play-btn-overlay {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background-color: rgba(200, 75, 49, 0.9);
            color: #fff;
            font-size: 0.85rem;
            transition: var(--transition-fast);
            border: 2px solid rgba(255, 255, 255, 0.5);
        }
        .play-btn-overlay:hover {
            background-color: var(--accent-carmine);
            transform: scale(1.1);
        }
        .video-card-body {
            padding: 16px 16px 18px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .video-card-title {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 6px;
            line-height: 1.35;
        }
        .video-card-meta {
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 8px;
            flex-wrap: wrap;
        }
        .video-card-tags {
            display: flex;
            gap: 6px;
            flex-wrap: wrap;
        }
        .video-card-tag {
            font-size: 0.7rem;
            font-weight: 600;
            color: var(--text-muted);
            background-color: var(--bg-bone);
            border-radius: 4px;
            padding: 2px 8px;
        }
        .video-card-rating {
            display: flex;
            align-items: center;
            gap: 4px;
            font-size: 0.78rem;
            font-weight: 700;
            color: var(--accent-amber);
            margin-left: auto;
        }
        .video-card-rating i { color: var(--accent-amber); font-size: 0.72rem; }
        .video-card-desc {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 12px;
            flex: 1;
        }
        .video-card-footer {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 10px;
        }
        .btn-play-sm {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.82rem;
            font-weight: 700;
            color: var(--accent-carmine);
            background: none;
            border: 1.5px solid var(--accent-carmine);
            border-radius: 6px;
            padding: 6px 14px;
            transition: var(--transition-fast);
        }
        .btn-play-sm:hover {
            background-color: var(--accent-carmine);
            color: #fff;
            box-shadow: 0 6px 14px rgba(200, 75, 49, 0.3);
        }

        /* ===== More Link ===== */
        .section-more {
            padding: 16px 0 56px;
            background-color: var(--bg-bone);
            text-align: center;
        }
        .btn-more-carmine {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 32px;
            border-radius: var(--radius-btn);
            border: 2px solid var(--accent-carmine);
            background: transparent;
            color: var(--accent-carmine);
            font-weight: 700;
            font-size: 0.92rem;
            transition: var(--transition-fast);
        }
        .btn-more-carmine:hover {
            background-color: var(--accent-carmine);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(200, 75, 49, 0.3);
        }
        .btn-more-carmine i { transition: var(--transition-fast); }
        .btn-more-carmine:hover i { transform: translateX(4px); }

        /* ===== Stats Bar ===== */
        .section-stats-bar {
            padding: 40px 0;
            background-color: var(--bg-dark);
            border-top: 2px solid var(--accent-amber);
        }
        .stats-bar-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            text-align: center;
        }
        .stats-bar-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 4px;
        }
        .stats-bar-item .stat-value {
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--accent-amber);
            letter-spacing: -0.02em;
            line-height: 1.2;
        }
        .stats-bar-item .stat-value .unit {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text-light-muted);
            margin-left: 2px;
        }
        .stats-bar-item .stat-label {
            font-size: 0.85rem;
            color: var(--text-light-muted);
            font-weight: 500;
        }

        /* ===== Related Tags ===== */
        .section-related-tags {
            background-color: var(--bg-bone);
            border-bottom: 1px solid var(--border-subtle);
        }
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .tag-cloud-item {
            display: inline-block;
            padding: 8px 18px;
            border-radius: 999px;
            font-size: 0.82rem;
            font-weight: 500;
            color: var(--text-dark);
            background-color: var(--bg-card-light);
            border: 1px solid var(--border-subtle);
            transition: var(--transition-fast);
        }
        .tag-cloud-item:hover {
            border-color: var(--accent-amber);
            color: var(--accent-carmine);
            background-color: var(--accent-amber-soft);
            transform: translateY(-2px);
        }

        /* ===== Update News ===== */
        .section-update-news {
            background-color: var(--bg-bone);
        }
        .news-list-compact {
            display: flex;
            flex-direction: column;
            gap: 0;
            border-top: 1px solid var(--border-subtle);
        }
        .news-list-item {
            display: flex;
            align-items: flex-start;
            gap: 20px;
            padding: 18px 4px;
            border-bottom: 1px solid var(--border-subtle);
            transition: var(--transition-fast);
        }
        .news-list-item:hover {
            background-color: var(--bg-bone-deep);
            padding-left: 12px;
        }
        .news-date {
            flex-shrink: 0;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--accent-carmine);
            min-width: 80px;
            padding-top: 2px;
        }
        .news-content {
            flex: 1;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
        }
        .news-text h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 4px;
        }
        .news-text p {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 0;
            line-height: 1.6;
        }
        .news-arrow-link {
            flex-shrink: 0;
            color: var(--accent-carmine);
            font-size: 0.9rem;
            font-weight: 700;
            transition: var(--transition-fast);
        }
        .news-arrow-link i { margin-left: 4px; transition: var(--transition-fast); }
        .news-arrow-link:hover { color: var(--accent-carmine-dark); }
        .news-arrow-link:hover i { transform: translateX(4px); }

        /* ===== Subscribe CTA ===== */
        .section-subscribe {
            background-color: var(--bg-bone-deep);
            border-top: 1px solid var(--border-subtle);
        }
        .subscribe-box {
            max-width: 560px;
            margin: 0 auto;
            text-align: center;
            background-color: var(--bg-card-light);
            border-radius: var(--radius-card);
            border: 1px solid var(--border-subtle);
            border-top: 3px solid var(--accent-carmine);
            padding: 40px 32px;
        }
        .subscribe-box h2 {
            font-size: 1.7rem;
            font-weight: 800;
            color: var(--text-dark);
            margin-bottom: 10px;
            letter-spacing: -0.01em;
        }
        .subscribe-box p {
            font-size: 0.98rem;
            color: var(--text-muted);
            margin-bottom: 22px;
            line-height: 1.7;
        }
        .subscribe-form {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
            justify-content: center;
        }
        .subscribe-form label {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            white-space: nowrap;
            border: 0;
        }
        .subscribe-input {
            flex: 1;
            min-width: 220px;
            padding: 12px 18px;
            border-radius: var(--radius-input);
            border: 1px solid var(--border-strong);
            background-color: var(--bg-bone);
            font-size: 0.92rem;
            color: var(--text-dark);
            transition: var(--transition-fast);
            outline: none;
        }
        .subscribe-input:hover {
            border-color: var(--accent-amber);
        }
        .subscribe-input:focus {
            border-color: var(--accent-amber);
            box-shadow: 0 0 0 3px var(--accent-carmine-glow);
        }
        .subscribe-note {
            font-size: 0.78rem;
            color: var(--text-muted);
            margin-top: 12px;
            margin-bottom: 0;
        }

        /* ===== Footer ===== */
        .site-footer {
            background-color: var(--bg-dark);
            color: var(--text-light-muted);
            padding: 56px 0 0;
            border-top: 2px solid var(--accent-carmine);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(250, 247, 242, 0.08);
        }
        .footer-brand .footer-logo {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 1.1rem;
            font-weight: 800;
            color: var(--text-light);
            margin-bottom: 14px;
        }
        .footer-brand .footer-logo .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 30px;
            height: 30px;
            border-radius: 50%;
            background-color: var(--accent-carmine);
            color: #fff;
            font-size: 0.7rem;
        }
        .footer-desc {
            font-size: 0.9rem;
            line-height: 1.7;
            color: var(--text-light-muted);
            margin-bottom: 18px;
            max-width: 320px;
        }
        .footer-social {
            display: flex;
            gap: 10px;
        }
        .footer-social a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            border: 1px solid rgba(250, 247, 242, 0.2);
            color: var(--text-light-muted);
            font-size: 0.85rem;
            transition: var(--transition-fast);
        }
        .footer-social a:hover {
            border-color: var(--accent-amber);
            color: var(--accent-amber);
            background-color: rgba(198, 138, 61, 0.1);
            transform: translateY(-2px);
        }
        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--text-light);
            margin-bottom: 16px;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer-col ul li a {
            font-size: 0.9rem;
            color: var(--text-light-muted);
            transition: var(--transition-fast);
        }
        .footer-col ul li a:hover {
            color: var(--accent-amber);
            padding-left: 4px;
        }
        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 10px;
            padding: 18px 0;
            font-size: 0.82rem;
            color: var(--text-light-muted);
        }
        .footer-bottom .domain-text {
            color: var(--accent-amber);
            font-weight: 600;
            letter-spacing: 0.03em;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            :root { --section-padding: 56px; }
            .section-title { font-size: 1.8rem; }
            .category-hero-left h1 { font-size: 2rem; }
            .video-card-grid { grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); }
        }
        @media (max-width: 768px) {
            :root { --section-padding: 44px; }
            .nav-desktop { display: none; }
            .countdown-badge { display: none; }
            .btn-nav-cta { display: none; }
            .navbar-toggler-custom { display: flex; }
            .category-hero-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .category-hero-left h1 { font-size: 1.65rem; }
            .category-hero-stats {
                flex-direction: row;
                flex-wrap: wrap;
                min-width: auto;
                gap: 16px;
                padding: 16px 18px;
            }
            .hero-stat-item { gap: 8px; }
            .hero-stat-item .stat-num { font-size: 1.3rem; }
            .filter-toolbar { flex-direction: column; align-items: flex-start; }
            .filter-right { width: 100%; justify-content: space-between; }
            .video-card-grid { grid-template-columns: repeat(2, 1fr); gap: 14px; }
            .card-grid-title { font-size: 1.3rem; }
            .stats-bar-grid { grid-template-columns: repeat(3, 1fr); gap: 14px; }
            .stats-bar-item .stat-value { font-size: 2rem; }
            .news-list-item { flex-direction: column; gap: 8px; }
            .footer-grid { grid-template-columns: 1fr 1fr; gap: 28px; }
            .footer-bottom { flex-direction: column; text-align: center; }
        }
        @media (max-width: 520px) {
            :root { --section-padding: 36px; }
            .container { padding-left: 16px; padding-right: 16px; }
            .canvas-open .nav-mobile-panel { display: flex; }
            .section-title { font-size: 1.5rem; }
            .category-hero-left h1 { font-size: 1.4rem; }
            .video-card-grid { grid-template-columns: 1fr; }
            .video-card-title { font-size: 0.98rem; }
            .stats-bar-grid { grid-template-columns: 1fr 1fr; gap: 16px; }
            .stats-bar-item .stat-value { font-size: 1.8rem; }
            .subscribe-form { flex-direction: column; }
            .subscribe-input { min-width: auto; width: 100%; }
            .footer-grid { grid-template-columns: 1fr; gap: 24px; }
            .footer-bottom { font-size: 0.75rem; }
        }

        /* Mobile Nav Panel (fullscreen dropdown) */
        .nav-mobile-panel {
            display: none;
            position: fixed;
            top: 68px;
            left: 0;
            right: 0;
            bottom: 0;
            background-color: rgba(26, 20, 16, 0.98);
            z-index: 999;
            padding: 32px 24px;
            flex-direction: column;
            gap: 8px;
            overflow-y: auto;
        }
        .nav-mobile-panel.show { display: flex; }
        .nav-mobile-panel a {
            color: var(--text-light);
            font-size: 1.1rem;
            font-weight: 600;
            padding: 14px 8px;
            border-bottom: 1px solid rgba(250, 247, 242, 0.08);
            display: flex;
            align-items: center;
            justify-content: space-between;
            transition: var(--transition-fast);
        }
        .nav-mobile-panel a:hover { color: var(--accent-amber); padding-left: 16px; }
        .nav-mobile-panel a.active { color: var(--accent-amber); }
        .nav-mobile-panel .btn-nav-cta-mobile {
            margin-top: 20px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background-color: var(--accent-carmine);
            color: #fff;
            font-size: 1rem;
            font-weight: 700;
            padding: 16px 24px;
            border-radius: var(--radius-btn);
            border: none;
            transition: var(--transition-fast);
            text-align: center;
        }
        .nav-mobile-panel .btn-nav-cta-mobile:hover {
            background-color: var(--accent-carmine-dark);
            box-shadow: 0 8px 20px rgba(200, 75, 49, 0.35);
        }
        .nav-mobile-countdown {
            display: flex;
            align-items: center;
            gap: 8px;
            color: var(--text-light-muted);
            font-size: 0.9rem;
            font-weight: 600;
            padding: 12px 8px;
            margin-bottom: 12px;
        }
        .nav-mobile-countdown .countdown-dot {
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background-color: var(--accent-amber);
            animation: dot-pulse 2s ease-in-out infinite;
        }
        .nav-mobile-countdown #countdownTimeMobile { color: var(--accent-amber); font-weight: 700; }

/* roulang: framework shim */
/* 覆盖 Bootstrap 等对 a/btn 的全局默认，避免导航出现下划线/蓝链 */
.site-header a,.site-header a:hover,.navbar a,.navbar a:hover,.nav-links a,.nav-links a:hover,header nav a,header nav a:hover{text-decoration:none}
.site-header .btn,.navbar .btn,.nav-cta{text-decoration:none}