/* roulang page: index */
:root {
            --bg: #f3f4f7;
            --bg-deep: #0b1121;
            --bg-deep2: #111827;
            --surface: #ffffff;
            --surface-hover: #f8fafc;
            --brand: #4361ee;
            --brand-light: #6d8af7;
            --brand-dark: #2d4bc4;
            --accent: #f97316;
            --accent-light: #fb923c;
            --accent-dark: #ea580c;
            --gradient-brand: linear-gradient(135deg, #4361ee 0%, #7c3aed 100%);
            --gradient-accent: linear-gradient(135deg, #f97316 0%, #ef4444 100%);
            --gradient-hero: linear-gradient(160deg, #0b1121 0%, #1a1f3a 40%, #0f1832 100%);
            --text: #1e293b;
            --text-soft: #475569;
            --text-muted: #94a3b8;
            --text-inverse: #f1f5f9;
            --border: #e2e8f0;
            --border-light: #f1f5f9;
            --radius-sm: 8px;
            --radius: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --radius-full: 9999px;
            --shadow-xs: 0 1px 2px rgba(0,0,0,0.04);
            --shadow-sm: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
            --shadow: 0 4px 14px rgba(0,0,0,0.07), 0 1px 3px rgba(0,0,0,0.05);
            --shadow-md: 0 8px 28px rgba(0,0,0,0.09), 0 2px 6px rgba(0,0,0,0.05);
            --shadow-lg: 0 16px 40px rgba(0,0,0,0.11), 0 4px 10px rgba(0,0,0,0.06);
            --shadow-glow: 0 0 28px rgba(67,97,238,0.18);
            --font-sans: 'Inter', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --font-mono: 'SF Mono', 'Fira Code', 'Consolas', monospace;
            --transition-fast: 0.15s ease;
            --transition: 0.25s ease;
            --transition-slow: 0.4s cubic-bezier(0.25, 0.8, 0.25, 1.2);
            --max-width: 1240px;
            --nav-height: 64px;
        }

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

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

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.65;
            color: var(--text);
            background: var(--bg);
            min-height: 100vh;
            -webkit-tap-highlight-color: transparent;
        }

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

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

        button, input, select, textarea {
            font-family: inherit;
            font-size: inherit;
        }

        button {
            cursor: pointer;
            border: none;
            background: none;
        }

        ul, ol {
            list-style: none;
        }

        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* Header / Nav */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--nav-height);
            background: rgba(11,17,33,0.92);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid rgba(255,255,255,0.08);
            transition: background var(--transition), box-shadow var(--transition);
        }

        .site-header.scrolled {
            background: rgba(11,17,33,0.97);
            box-shadow: 0 2px 20px rgba(0,0,0,0.25);
        }

        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--nav-height);
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 1.2rem;
            color: #fff;
            white-space: nowrap;
            letter-spacing: -0.01em;
            flex-shrink: 0;
        }

        .nav-logo .logo-icon {
            width: 36px;
            height: 36px;
            border-radius: var(--radius-sm);
            background: var(--gradient-brand);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            color: #fff;
            font-weight: 800;
            flex-shrink: 0;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
            position: absolute;
            left: 50%;
            transform: translateX(-50%);
        }

        .nav-links a {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 16px;
            border-radius: var(--radius-full);
            font-size: 0.925rem;
            font-weight: 500;
            color: #cbd5e1;
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
        }

        .nav-links a:hover {
            color: #fff;
            background: rgba(255,255,255,0.07);
        }

        .nav-links a.active {
            color: #fff;
            background: rgba(67,97,238,0.25);
        }

        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 18px;
            height: 3px;
            border-radius: 99px;
            background: var(--brand-light);
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .nav-search {
            position: relative;
            display: flex;
            align-items: center;
        }

        .nav-search input {
            width: 180px;
            height: 38px;
            padding: 0 14px 0 36px;
            border-radius: var(--radius-full);
            border: 1px solid rgba(255,255,255,0.15);
            background: rgba(255,255,255,0.06);
            color: #fff;
            font-size: 0.875rem;
            outline: none;
            transition: all var(--transition-fast);
        }

        .nav-search input::placeholder {
            color: #94a3b8;
        }

        .nav-search input:focus {
            width: 220px;
            border-color: var(--brand-light);
            background: rgba(255,255,255,0.1);
            box-shadow: 0 0 0 3px rgba(67,97,238,0.15);
        }

        .nav-search .search-icon {
            position: absolute;
            left: 12px;
            top: 50%;
            transform: translateY(-50%);
            color: #94a3b8;
            font-size: 0.9rem;
            pointer-events: none;
        }

        .btn-nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            height: 38px;
            padding: 0 18px;
            border-radius: var(--radius-full);
            background: var(--gradient-brand);
            color: #fff;
            font-weight: 600;
            font-size: 0.875rem;
            white-space: nowrap;
            transition: all var(--transition-fast);
            box-shadow: 0 2px 8px rgba(67,97,238,0.3);
        }

        .btn-nav-cta:hover {
            transform: translateY(-1px);
            box-shadow: 0 4px 16px rgba(67,97,238,0.45);
        }

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

        /* Mobile menu toggle */
        .nav-toggle {
            display: none;
            width: 40px;
            height: 40px;
            align-items: center;
            justify-content: center;
            border-radius: var(--radius-sm);
            color: #fff;
            font-size: 1.3rem;
            flex-shrink: 0;
        }

        /* Mobile nav */
        .mobile-nav-overlay {
            display: none;
            position: fixed;
            inset: 0;
            z-index: 999;
            background: rgba(0,0,0,0.55);
            opacity: 0;
            transition: opacity var(--transition);
        }

        .mobile-nav-overlay.open {
            opacity: 1;
        }

        .mobile-nav-panel {
            position: fixed;
            top: 0;
            right: -300px;
            width: 280px;
            height: 100vh;
            z-index: 1001;
            background: var(--bg-deep2);
            padding: 24px;
            transition: right var(--transition);
            display: flex;
            flex-direction: column;
            gap: 16px;
            border-left: 1px solid rgba(255,255,255,0.08);
        }

        .mobile-nav-panel.open {
            right: 0;
        }

        .mobile-nav-panel a {
            display: block;
            padding: 12px 16px;
            border-radius: var(--radius);
            color: #cbd5e1;
            font-weight: 500;
            transition: all var(--transition-fast);
        }

        .mobile-nav-panel a:hover,
        .mobile-nav-panel a.active {
            background: rgba(255,255,255,0.06);
            color: #fff;
        }

        .mobile-nav-close {
            align-self: flex-end;
            width: 36px;
            height: 36px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: var(--radius-sm);
            color: #fff;
            font-size: 1.2rem;
        }

        /* Hero */
        .hero-section {
            position: relative;
            min-height: 620px;
            display: flex;
            align-items: center;
            padding: 100px 0 80px;
            background: var(--gradient-hero);
            overflow: hidden;
        }

        .hero-bg-img {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            opacity: 0.35;
            mix-blend-mode: overlay;
            pointer-events: none;
        }

        .hero-glow {
            position: absolute;
            width: 500px;
            height: 500px;
            border-radius: 50%;
            filter: blur(120px);
            opacity: 0.3;
            pointer-events: none;
        }

        .hero-glow.g1 {
            top: -100px;
            right: -80px;
            background: #4361ee;
        }

        .hero-glow.g2 {
            bottom: -120px;
            left: -60px;
            background: #7c3aed;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 680px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 16px;
            border-radius: var(--radius-full);
            background: rgba(255,255,255,0.08);
            border: 1px solid rgba(255,255,255,0.14);
            color: #cbd5e1;
            font-size: 0.85rem;
            font-weight: 500;
            margin-bottom: 20px;
        }

        .hero-badge .dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: #10b981;
            animation: pulse-dot 2s infinite;
        }

        @keyframes pulse-dot {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.4; }
        }

        .hero-title {
            font-size: 3.2rem;
            font-weight: 800;
            line-height: 1.2;
            color: #fff;
            margin-bottom: 18px;
            letter-spacing: -0.02em;
        }

        .hero-title span {
            background: linear-gradient(135deg, #818cf8 0%, #c084fc 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-desc {
            font-size: 1.15rem;
            color: #cbd5e1;
            line-height: 1.7;
            margin-bottom: 32px;
            max-width: 540px;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            align-items: center;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 28px;
            border-radius: var(--radius-full);
            background: var(--gradient-brand);
            color: #fff;
            font-weight: 600;
            font-size: 1rem;
            transition: all var(--transition);
            box-shadow: var(--shadow-glow);
            white-space: nowrap;
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 0 36px rgba(67,97,238,0.3);
        }

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

        .btn-outline-light {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 28px;
            border-radius: var(--radius-full);
            border: 1.5px solid rgba(255,255,255,0.3);
            color: #fff;
            font-weight: 500;
            font-size: 1rem;
            transition: all var(--transition);
            white-space: nowrap;
        }

        .btn-outline-light:hover {
            background: rgba(255,255,255,0.08);
            border-color: rgba(255,255,255,0.5);
        }

        .hero-stats {
            display: flex;
            gap: 32px;
            margin-top: 36px;
            flex-wrap: wrap;
        }

        .hero-stat {
            display: flex;
            flex-direction: column;
            gap: 2px;
        }

        .hero-stat .stat-num {
            font-size: 1.8rem;
            font-weight: 700;
            color: #fff;
            letter-spacing: -0.01em;
        }

        .hero-stat .stat-label {
            font-size: 0.85rem;
            color: #94a3b8;
        }

        /* Sections */
        .section {
            padding: 72px 0;
        }

        .section-header {
            text-align: center;
            margin-bottom: 48px;
        }

        .section-label {
            display: inline-block;
            padding: 5px 14px;
            border-radius: var(--radius-full);
            background: rgba(67,97,238,0.08);
            color: var(--brand);
            font-weight: 600;
            font-size: 0.85rem;
            margin-bottom: 12px;
        }

        .section-title {
            font-size: 2.1rem;
            font-weight: 700;
            color: var(--text);
            letter-spacing: -0.01em;
            margin-bottom: 10px;
        }

        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-soft);
            max-width: 560px;
            margin: 0 auto;
        }

        /* Feature cards grid */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .feature-card {
            background: var(--surface);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            border: 1px solid var(--border);
            transition: all var(--transition);
            position: relative;
            overflow: hidden;
        }

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

        .feature-card .card-icon {
            width: 48px;
            height: 48px;
            border-radius: var(--radius);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            margin-bottom: 16px;
            background: rgba(67,97,238,0.08);
            color: var(--brand);
        }

        .feature-card h3 {
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 8px;
        }

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

        /* Category entrance */
        .category-cards {
            display: grid;
            grid-template-columns: repeat(1, 1fr);
            gap: 16px;
            max-width: 720px;
            margin: 0 auto;
        }

        .category-card {
            display: flex;
            align-items: center;
            gap: 20px;
            background: var(--surface);
            border-radius: var(--radius-lg);
            padding: 22px 28px;
            border: 1px solid var(--border);
            transition: all var(--transition);
            cursor: pointer;
        }

        .category-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-md);
            border-color: var(--brand-light);
        }

        .category-card .cat-img {
            width: 80px;
            height: 80px;
            border-radius: var(--radius);
            object-fit: cover;
            flex-shrink: 0;
        }

        .category-card .cat-info h3 {
            font-size: 1.15rem;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 4px;
        }

        .category-card .cat-info p {
            font-size: 0.9rem;
            color: var(--text-soft);
        }

        .category-card .cat-arrow {
            margin-left: auto;
            color: var(--brand);
            font-size: 1.2rem;
            flex-shrink: 0;
        }

        /* News list */
        .news-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 16px;
        }

        .news-card {
            display: flex;
            gap: 16px;
            background: var(--surface);
            border-radius: var(--radius-lg);
            padding: 18px 20px;
            border: 1px solid var(--border);
            transition: all var(--transition);
            align-items: flex-start;
        }

        .news-card:hover {
            box-shadow: var(--shadow);
            border-color: #cbd5e1;
        }

        .news-card .news-thumb {
            width: 100px;
            height: 70px;
            border-radius: var(--radius-sm);
            object-fit: cover;
            flex-shrink: 0;
            background: #e2e8f0;
        }

        .news-card .news-body h4 {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 4px;
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-card .news-body .news-meta {
            font-size: 0.8rem;
            color: var(--text-muted);
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
        }

        .news-card .news-body .news-excerpt {
            font-size: 0.83rem;
            color: var(--text-soft);
            margin-top: 4px;
            display: -webkit-box;
            -webkit-line-clamp: 1;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-empty {
            text-align: center;
            color: var(--text-muted);
            padding: 40px 20px;
            font-size: 0.95rem;
            grid-column: 1 / -1;
        }

        /* Stats section */
        .stats-section {
            background: var(--bg-deep);
            color: #fff;
            padding: 60px 0;
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            text-align: center;
        }

        .stat-card {
            padding: 24px 16px;
            border-radius: var(--radius-lg);
            background: rgba(255,255,255,0.04);
            border: 1px solid rgba(255,255,255,0.06);
        }

        .stat-card .stat-value {
            font-size: 2.4rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            background: linear-gradient(135deg, #818cf8 0%, #c084fc 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .stat-card .stat-desc {
            font-size: 0.9rem;
            color: #94a3b8;
            margin-top: 4px;
        }

        /* FAQ */
        .faq-list {
            max-width: 720px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            background: var(--surface);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            overflow: hidden;
            transition: all var(--transition);
        }

        .faq-item:hover {
            border-color: #cbd5e1;
        }

        .faq-question {
            padding: 18px 22px;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            user-select: none;
        }

        .faq-question .faq-icon {
            transition: transform var(--transition);
            color: var(--brand);
            font-size: 1.1rem;
            flex-shrink: 0;
        }

        .faq-item.open .faq-question .faq-icon {
            transform: rotate(45deg);
        }

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

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 22px 18px;
        }

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

        /* CTA Section */
        .cta-section {
            background: var(--gradient-brand);
            padding: 64px 0;
            text-align: center;
            color: #fff;
        }

        .cta-section .cta-title {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 12px;
            letter-spacing: -0.01em;
        }

        .cta-section .cta-desc {
            font-size: 1.05rem;
            opacity: 0.9;
            margin-bottom: 28px;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
        }

        .btn-cta-large {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 16px 36px;
            border-radius: var(--radius-full);
            background: #fff;
            color: var(--brand-dark);
            font-weight: 700;
            font-size: 1.05rem;
            transition: all var(--transition);
            box-shadow: 0 8px 28px rgba(0,0,0,0.2);
        }

        .btn-cta-large:hover {
            transform: translateY(-3px);
            box-shadow: 0 14px 36px rgba(0,0,0,0.28);
        }

        .btn-cta-large:active {
            transform: translateY(-1px);
        }

        /* Footer */
        .site-footer {
            background: var(--bg-deep);
            color: #cbd5e1;
            padding: 48px 0 28px;
            border-top: 1px solid rgba(255,255,255,0.06);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }

        .footer-brand .footer-logo {
            font-weight: 700;
            font-size: 1.15rem;
            color: #fff;
            margin-bottom: 10px;
        }

        .footer-brand p {
            font-size: 0.85rem;
            color: #94a3b8;
            line-height: 1.6;
        }

        .footer-col h4 {
            font-weight: 600;
            color: #fff;
            font-size: 0.95rem;
            margin-bottom: 12px;
        }

        .footer-col a {
            display: block;
            font-size: 0.85rem;
            color: #94a3b8;
            padding: 3px 0;
            transition: color var(--transition-fast);
        }

        .footer-col a:hover {
            color: #fff;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.08);
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.82rem;
            color: #64748b;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .features-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .hero-title {
                font-size: 2.5rem;
            }
            .nav-links {
                gap: 0;
            }
            .nav-links a {
                padding: 8px 10px;
                font-size: 0.85rem;
            }
            .nav-search input {
                width: 130px;
            }
            .nav-search input:focus {
                width: 160px;
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
            }
            .nav-search {
                display: none;
            }
            .nav-toggle {
                display: flex;
            }
            .mobile-nav-overlay,
            .mobile-nav-panel {
                display: block;
            }
            .hero-section {
                min-height: 500px;
                padding: 80px 0 50px;
            }
            .hero-title {
                font-size: 2rem;
            }
            .hero-desc {
                font-size: 1rem;
            }
            .hero-stats {
                gap: 18px;
            }
            .hero-stat .stat-num {
                font-size: 1.4rem;
            }
            .features-grid {
                grid-template-columns: 1fr;
            }
            .news-list {
                grid-template-columns: 1fr;
            }
            .category-cards {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .section {
                padding: 48px 0;
            }
            .section-title {
                font-size: 1.6rem;
            }
            .cta-section .cta-title {
                font-size: 1.5rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .btn-nav-cta span.btn-label {
                display: none;
            }
            .btn-nav-cta {
                padding: 0 14px;
                height: 36px;
            }
        }

        @media (max-width: 520px) {
            .hero-title {
                font-size: 1.7rem;
            }
            .hero-actions {
                flex-direction: column;
                align-items: flex-start;
            }
            .hero-stats {
                gap: 12px;
            }
            .hero-stat .stat-num {
                font-size: 1.2rem;
            }
            .stats-grid {
                grid-template-columns: 1fr;
            }
            .news-card {
                flex-direction: column;
            }
            .news-card .news-thumb {
                width: 100%;
                height: 140px;
            }
            .category-card {
                flex-direction: column;
                text-align: center;
            }
            .category-card .cat-arrow {
                margin-left: 0;
            }
            .container {
                padding: 0 16px;
            }
            .btn-primary,
            .btn-outline-light {
                padding: 12px 20px;
                font-size: 0.9rem;
            }
        }

/* roulang page: article */
:root {
            --primary: #1a5cff;
            --primary-dark: #1345cc;
            --secondary: #ff6b35;
            --secondary-hover: #e55a2b;
            --accent: #00b4d8;
            --dark: #0b1121;
            --dark-soft: #1e293b;
            --light-bg: #f4f6fb;
            --white: #ffffff;
            --text: #1e293b;
            --text-light: #64748b;
            --text-superlight: #94a3b8;
            --border: #e2e8f0;
            --border-light: #f1f5f9;
            --radius: 14px;
            --radius-sm: 10px;
            --radius-xs: 6px;
            --shadow-sm: 0 2px 10px rgba(0,0,0,0.04);
            --shadow: 0 6px 24px rgba(0,0,0,0.08);
            --shadow-hover: 0 12px 32px rgba(0,0,0,0.12);
            --transition: 0.2s ease;
        }

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

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", "PingFang SC", "Microsoft YaHei", sans-serif;
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background: var(--white);
            -webkit-font-smoothing: antialiased;
        }

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

        a {
            color: inherit;
            text-decoration: none;
        }

        button, input, textarea {
            font: inherit;
            border: none;
            background: none;
            outline: none;
        }

        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .container--narrow {
            max-width: 860px;
        }

        /* header */
        .site-header {
            background: var(--white);
            border-bottom: 1px solid var(--border-light);
            position: sticky;
            top: 0;
            z-index: 100;
            backdrop-filter: blur(8px);
            background: rgba(255,255,255,0.92);
        }
        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
            height: 70px;
        }
        .nav-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--dark);
            letter-spacing: -0.3px;
        }
        .logo-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            color: white;
            border-radius: var(--radius-xs);
            font-weight: 800;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 32px;
        }
        .nav-links a {
            color: var(--text-light);
            font-weight: 500;
            font-size: 0.95rem;
            transition: color var(--transition);
            position: relative;
        }
        .nav-links a:hover,
        .nav-links a.active {
            color: var(--primary);
        }
        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: -8px;
            left: 0;
            right: 0;
            height: 3px;
            background: var(--primary);
            border-radius: 4px;
        }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 16px;
        }
        .nav-search {
            display: flex;
            align-items: center;
            background: var(--light-bg);
            border-radius: 30px;
            padding: 6px 16px;
            gap: 8px;
            transition: box-shadow var(--transition);
        }
        .nav-search:focus-within {
            box-shadow: 0 0 0 3px rgba(26,92,255,0.15);
        }
        .search-icon {
            font-size: 0.9rem;
            opacity: 0.6;
        }
        .nav-search input {
            width: 140px;
            font-size: 0.9rem;
            color: var(--text);
        }
        .nav-search input::placeholder {
            color: var(--text-superlight);
        }
        .btn-nav-cta {
            display: flex;
            align-items: center;
            gap: 6px;
            background: var(--secondary);
            color: white;
            font-weight: 600;
            padding: 10px 20px;
            border-radius: 30px;
            font-size: 0.9rem;
            transition: background var(--transition), transform var(--transition);
        }
        .btn-nav-cta:hover {
            background: var(--secondary-hover);
            transform: translateY(-1px);
        }
        .btn-label {
            letter-spacing: 0.3px;
        }
        .nav-toggle {
            display: none;
            font-size: 1.6rem;
            color: var(--dark);
            cursor: pointer;
        }

        /* article page main */
        .article-page {
            min-height: 60vh;
        }
        .article-header {
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center 30%;
            position: relative;
            padding: 100px 0 80px;
            color: white;
        }
        .article-header::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(11,17,33,0.75) 0%, rgba(11,17,33,0.92) 100%);
        }
        .article-header-content {
            position: relative;
            z-index: 2;
            max-width: 900px;
            margin: 0 auto;
            padding: 0 24px;
            text-align: center;
        }
        .article-category-tag {
            display: inline-block;
            background: rgba(255,255,255,0.15);
            backdrop-filter: blur(4px);
            color: white;
            padding: 6px 16px;
            border-radius: 30px;
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 20px;
            border: 1px solid rgba(255,255,255,0.25);
        }
        .article-header h1 {
            font-size: 2.6rem;
            font-weight: 700;
            line-height: 1.35;
            margin-bottom: 20px;
            letter-spacing: -0.4px;
            text-shadow: 0 2px 10px rgba(0,0,0,0.5);
        }
        .article-meta {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 24px;
            font-size: 0.95rem;
            color: rgba(255,255,255,0.85);
        }
        .article-meta time {
            display: flex;
            align-items: center;
            gap: 6px;
        }

        /* article body */
        .article-body-wrapper {
            background: var(--white);
            position: relative;
            z-index: 3;
            margin-top: -40px;
            padding: 0 24px;
        }
        .article-body-card {
            max-width: 820px;
            margin: 0 auto;
            background: var(--white);
            border-radius: var(--radius) var(--radius) 0 0;
            box-shadow: var(--shadow);
            padding: 48px 48px 60px;
            color: var(--text);
        }
        .article-content {
            font-size: 1.05rem;
            line-height: 1.8;
            color: var(--dark-soft);
        }
        .article-content h2 {
            font-size: 1.6rem;
            margin: 2em 0 0.8em;
            color: var(--dark);
        }
        .article-content h3 {
            font-size: 1.3rem;
            margin: 1.8em 0 0.6em;
        }
        .article-content p {
            margin-bottom: 1.6em;
        }
        .article-content img {
            border-radius: var(--radius-sm);
            margin: 2em 0;
        }
        .not-found-message {
            text-align: center;
            padding: 100px 24px;
            max-width: 600px;
            margin: 0 auto;
        }
        .not-found-message h2 {
            font-size: 2rem;
            color: var(--dark);
            margin-bottom: 16px;
        }
        .not-found-message p {
            color: var(--text-light);
            margin-bottom: 30px;
        }
        .btn-back {
            display: inline-block;
            background: var(--primary);
            color: white;
            font-weight: 600;
            padding: 12px 28px;
            border-radius: 30px;
            transition: background var(--transition);
        }
        .btn-back:hover {
            background: var(--primary-dark);
        }

        /* footer */
        .site-footer {
            background: var(--dark);
            color: #cbd5e1;
            padding: 60px 0 30px;
            margin-top: 80px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-logo {
            font-size: 1.4rem;
            font-weight: 700;
            color: white;
            margin-bottom: 14px;
        }
        .footer-brand p {
            font-size: 0.9rem;
            line-height: 1.6;
            color: #94a3b8;
            max-width: 280px;
        }
        .footer-col h4 {
            font-size: 1rem;
            color: white;
            margin-bottom: 18px;
            font-weight: 600;
        }
        .footer-col a {
            display: block;
            color: #94a3b8;
            margin-bottom: 10px;
            font-size: 0.9rem;
            transition: color var(--transition);
        }
        .footer-col a:hover {
            color: white;
        }
        .footer-bottom {
            border-top: 1px solid #334155;
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            font-size: 0.85rem;
            color: #64748b;
        }

        /* responsive */
        @media (max-width: 1024px) {
            .nav-links {
                gap: 20px;
            }
            .nav-search input {
                width: 100px;
            }
            .article-header h1 {
                font-size: 2rem;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            .nav-links {
                position: fixed;
                top: 70px;
                left: 0;
                right: 0;
                background: white;
                flex-direction: column;
                padding: 24px;
                gap: 18px;
                box-shadow: var(--shadow);
                display: none;
            }
            .nav-links.active {
                display: flex;
            }
            .nav-toggle {
                display: block;
            }
            .nav-actions .nav-search {
                display: none;
            }
            .btn-nav-cta .btn-label {
                display: none;
            }
            .article-body-card {
                padding: 32px 24px;
            }
            .article-header {
                padding: 70px 0 60px;
            }
            .article-header h1 {
                font-size: 1.7rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 30px;
            }
            .footer-bottom {
                flex-direction: column;
                gap: 8px;
                text-align: center;
            }
        }

/* roulang page: category1 */
/* ==================== 设计变量 ==================== */
        :root {
            --primary: #FF6B35;
            --primary-dark: #E55A2B;
            --primary-light: #FF8F63;
            --secondary: #FFB800;
            --secondary-light: #FFD54F;
            --accent: #FF3D5C;
            --bg: #F7F8FB;
            --bg-dark: #1B1C2E;
            --bg-card: #FFFFFF;
            --bg-card-alt: #F0F2F7;
            --text: #1E1F2E;
            --text-secondary: #5A5C6E;
            --text-muted: #8B8D9E;
            --text-light: #B0B2C0;
            --border: #E2E4EC;
            --border-light: #EEF0F5;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08), 0 2px 6px rgba(0, 0, 0, 0.04);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.10), 0 3px 10px rgba(0, 0, 0, 0.05);
            --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.14), 0 6px 18px rgba(0, 0, 0, 0.06);
            --shadow-glow: 0 0 30px rgba(255, 107, 53, 0.25), 0 4px 20px rgba(255, 107, 53, 0.12);
            --radius-xs: 6px;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --radius-2xl: 24px;
            --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
            --transition-fast: 0.18s ease;
            --transition-normal: 0.28s ease;
            --transition-slow: 0.4s cubic-bezier(0.25, 0.8, 0.25, 1.2);
            --container-max: 1200px;
            --container-narrow: 960px;
            --nav-height: 68px;
        }

        /* ==================== 基础 Reset ==================== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

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

        body {
            font-family: var(--font-sans);
            line-height: 1.6;
            color: var(--text);
            background-color: var(--bg);
            min-height: 100vh;
            overflow-x: hidden;
        }

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

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

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

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

        ul,
        ol {
            list-style: none;
        }

        /* ==================== 容器 ==================== */
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }

        .container-narrow {
            max-width: var(--container-narrow);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ==================== Header / 导航 ==================== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.94);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            height: var(--nav-height);
            display: flex;
            align-items: center;
            transition: box-shadow var(--transition-normal);
        }

        .site-header.scrolled {
            box-shadow: var(--shadow-md);
            border-bottom-color: var(--border);
        }

        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
            gap: 20px;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-weight: 700;
            font-size: 1.25rem;
            color: var(--text);
            white-space: nowrap;
            letter-spacing: -0.01em;
            transition: opacity var(--transition-fast);
            flex-shrink: 0;
        }

        .nav-logo:hover {
            opacity: 0.82;
        }

        .logo-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: #fff;
            font-weight: 800;
            font-size: 1.1rem;
            border-radius: var(--radius-sm);
            box-shadow: 0 2px 8px rgba(255, 107, 53, 0.25);
            flex-shrink: 0;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-shrink: 0;
        }

        .nav-links a {
            display: inline-flex;
            align-items: center;
            padding: 8px 16px;
            border-radius: var(--radius-sm);
            font-weight: 500;
            font-size: 0.93rem;
            color: var(--text-secondary);
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
        }

        .nav-links a:hover {
            color: var(--text);
            background: var(--bg-card-alt);
        }

        .nav-links a.active {
            color: var(--primary);
            background: rgba(255, 107, 53, 0.07);
            font-weight: 600;
        }

        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--primary);
            border-radius: 3px;
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .nav-search {
            display: flex;
            align-items: center;
            background: var(--bg-card-alt);
            border: 1.5px solid var(--border-light);
            border-radius: 24px;
            padding: 7px 14px;
            gap: 8px;
            transition: all var(--transition-fast);
            min-width: 170px;
        }

        .nav-search:focus-within {
            border-color: var(--primary-light);
            box-shadow: 0 0 0 3px rgba(255, 107, 53, 0.08);
            background: var(--bg-card);
        }

        .nav-search .search-icon {
            font-size: 0.9rem;
            opacity: 0.6;
            flex-shrink: 0;
        }

        .nav-search input {
            background: transparent;
            font-size: 0.88rem;
            color: var(--text);
            width: 100%;
            min-width: 0;
        }

        .nav-search input::placeholder {
            color: var(--text-muted);
        }

        .btn-nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 9px 18px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            font-weight: 600;
            font-size: 0.9rem;
            border-radius: 24px;
            white-space: nowrap;
            transition: all var(--transition-fast);
            box-shadow: 0 2px 10px rgba(255, 107, 53, 0.3);
            letter-spacing: 0.01em;
        }

        .btn-nav-cta:hover {
            box-shadow: 0 4px 18px rgba(255, 107, 53, 0.4);
            transform: translateY(-1px);
            background: linear-gradient(135deg, var(--primary-light), var(--primary));
        }

        .btn-nav-cta:active {
            transform: translateY(0);
            box-shadow: 0 1px 5px rgba(255, 107, 53, 0.25);
        }

        .nav-toggle {
            display: none;
            font-size: 1.4rem;
            padding: 8px;
            border-radius: var(--radius-sm);
            color: var(--text);
            transition: background var(--transition-fast);
            flex-shrink: 0;
        }

        .nav-toggle:hover {
            background: var(--bg-card-alt);
        }

        /* 移动端导航 */
        @media (max-width: 920px) {
            .nav-links {
                position: fixed;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: rgba(255, 255, 255, 0.98);
                backdrop-filter: blur(16px);
                -webkit-backdrop-filter: blur(16px);
                flex-direction: column;
                gap: 2px;
                padding: 12px 20px;
                border-bottom: 1px solid var(--border);
                box-shadow: var(--shadow-lg);
                transform: translateY(-120%);
                opacity: 0;
                transition: all var(--transition-normal);
                pointer-events: none;
                z-index: 999;
            }

            .nav-links.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }

            .nav-links a {
                width: 100%;
                padding: 12px 16px;
                font-size: 1rem;
                border-radius: var(--radius-sm);
                justify-content: center;
            }

            .nav-links a.active::after {
                display: none;
            }

            .nav-search {
                min-width: auto;
                flex: 1;
                max-width: 160px;
            }

            .btn-nav-cta .btn-label {
                display: none;
            }

            .btn-nav-cta {
                padding: 9px 13px;
                border-radius: 50%;
                aspect-ratio: 1;
                justify-content: center;
            }

            .nav-toggle {
                display: flex;
                align-items: center;
                justify-content: center;
            }
        }

        @media (max-width: 600px) {
            .nav-search {
                display: none;
            }

            .nav-inner {
                gap: 12px;
                padding: 0 16px;
            }

            .nav-logo {
                font-size: 1.05rem;
            }

            .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 0.95rem;
            }
        }

        /* ==================== 分类页 Banner ==================== */
        .category-banner {
            position: relative;
            padding: 70px 0 60px;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            color: #fff;
            overflow: hidden;
            min-height: 320px;
            display: flex;
            align-items: center;
        }

        .category-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(160deg, rgba(27, 28, 46, 0.88) 0%, rgba(27, 28, 46, 0.65) 50%, rgba(27, 28, 46, 0.82) 100%);
            z-index: 1;
        }

        .category-banner::after {
            content: '';
            position: absolute;
            top: -60px;
            right: -80px;
            width: 350px;
            height: 350px;
            background: radial-gradient(circle, rgba(255, 107, 53, 0.22) 0%, transparent 70%);
            border-radius: 50%;
            z-index: 1;
            pointer-events: none;
        }

        .banner-content {
            position: relative;
            z-index: 2;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
            width: 100%;
        }

        .banner-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(255, 255, 255, 0.15);
            backdrop-filter: blur(8px);
            border: 1px solid rgba(255, 255, 255, 0.25);
            padding: 7px 16px;
            border-radius: 24px;
            font-size: 0.85rem;
            font-weight: 500;
            letter-spacing: 0.03em;
            color: var(--secondary-light);
            margin-bottom: 16px;
        }

        .banner-badge .badge-dot {
            width: 8px;
            height: 8px;
            background: var(--secondary);
            border-radius: 50%;
            animation: pulse-dot 1.8s ease-in-out infinite;
        }

        @keyframes pulse-dot {
            0%,
            100% {
                box-shadow: 0 0 0 0 rgba(255, 184, 0, 0.6);
            }
            50% {
                box-shadow: 0 0 0 12px rgba(255, 184, 0, 0);
            }
        }

        .banner-content h1 {
            font-size: 2.8rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            line-height: 1.2;
            margin-bottom: 12px;
            color: #fff;
        }

        .banner-content h1 .highlight {
            background: linear-gradient(135deg, var(--secondary), var(--secondary-light));
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .banner-desc {
            font-size: 1.12rem;
            color: rgba(255, 255, 255, 0.85);
            max-width: 560px;
            line-height: 1.7;
            margin-bottom: 24px;
        }

        .banner-stats {
            display: flex;
            gap: 28px;
            flex-wrap: wrap;
        }

        .banner-stat-item {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .banner-stat-num {
            font-size: 2rem;
            font-weight: 800;
            color: var(--secondary);
            line-height: 1;
        }

        .banner-stat-label {
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.75);
        }

        @media (max-width: 768px) {
            .category-banner {
                padding: 50px 0 40px;
                min-height: 260px;
            }

            .banner-content h1 {
                font-size: 2rem;
            }

            .banner-desc {
                font-size: 1rem;
            }

            .banner-stat-num {
                font-size: 1.5rem;
            }

            .banner-stats {
                gap: 16px;
            }
        }

        @media (max-width: 520px) {
            .category-banner {
                padding: 40px 0 32px;
                min-height: 220px;
            }

            .banner-content h1 {
                font-size: 1.6rem;
            }

            .banner-desc {
                font-size: 0.9rem;
            }

            .banner-stats {
                gap: 12px;
            }

            .banner-stat-num {
                font-size: 1.3rem;
            }

            .banner-stat-label {
                font-size: 0.78rem;
            }
        }

        /* ==================== 板块通用样式 ==================== */
        .section {
            padding: 64px 0;
        }

        .section-header {
            text-align: center;
            margin-bottom: 44px;
        }

        .section-header h2 {
            font-size: 2rem;
            font-weight: 700;
            color: var(--text);
            letter-spacing: -0.01em;
            margin-bottom: 8px;
        }

        .section-header .section-subtitle {
            font-size: 0.95rem;
            color: var(--text-muted);
            max-width: 500px;
            margin: 0 auto;
        }

        .section-tag {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--primary);
            background: rgba(255, 107, 53, 0.08);
            padding: 5px 14px;
            border-radius: 20px;
            letter-spacing: 0.04em;
            margin-bottom: 10px;
        }

        @media (max-width: 768px) {
            .section {
                padding: 44px 0;
            }

            .section-header h2 {
                font-size: 1.55rem;
            }

            .section-header {
                margin-bottom: 30px;
            }
        }

        @media (max-width: 520px) {
            .section {
                padding: 34px 0;
            }

            .section-header h2 {
                font-size: 1.35rem;
            }
        }

        /* ==================== 倒计时模块 ==================== */
        .countdown-section {
            background: var(--bg-dark);
            color: #fff;
            padding: 48px 0;
            position: relative;
            overflow: hidden;
        }

        .countdown-section::before {
            content: '';
            position: absolute;
            top: -100px;
            left: -120px;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(255, 107, 53, 0.15) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .countdown-inner {
            position: relative;
            z-index: 1;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 36px;
            flex-wrap: wrap;
        }

        .countdown-info {
            flex: 1;
            min-width: 260px;
        }

        .countdown-label {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.82rem;
            font-weight: 600;
            color: var(--secondary);
            background: rgba(255, 184, 0, 0.12);
            padding: 5px 14px;
            border-radius: 20px;
            letter-spacing: 0.03em;
            margin-bottom: 10px;
        }

        .countdown-label .live-dot {
            width: 8px;
            height: 8px;
            background: #FF3D5C;
            border-radius: 50%;
            animation: pulse-dot 1.5s ease-in-out infinite;
        }

        .countdown-info h3 {
            font-size: 1.6rem;
            font-weight: 700;
            margin-bottom: 6px;
            letter-spacing: -0.01em;
        }

        .countdown-info .countdown-desc {
            font-size: 0.93rem;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 16px;
            line-height: 1.6;
        }

        .countdown-timer {
            display: flex;
            gap: 14px;
            flex-shrink: 0;
        }

        .timer-block {
            text-align: center;
            min-width: 70px;
        }

        .timer-block .timer-num {
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 3rem;
            font-weight: 800;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: var(--radius-md);
            padding: 10px 6px;
            min-width: 72px;
            letter-spacing: 0.02em;
            color: #fff;
            line-height: 1;
            backdrop-filter: blur(4px);
        }

        .timer-block .timer-label {
            font-size: 0.78rem;
            color: rgba(255, 255, 255, 0.6);
            margin-top: 6px;
            letter-spacing: 0.03em;
        }

        .timer-separator {
            font-size: 2.5rem;
            font-weight: 700;
            color: rgba(255, 255, 255, 0.5);
            align-self: flex-start;
            padding-top: 14px;
        }

        @media (max-width: 768px) {
            .countdown-inner {
                flex-direction: column;
                align-items: flex-start;
                gap: 24px;
            }

            .countdown-timer {
                gap: 8px;
            }

            .timer-block .timer-num {
                font-size: 2.2rem;
                min-width: 55px;
                padding: 8px 4px;
            }

            .timer-separator {
                font-size: 1.8rem;
                padding-top: 8px;
            }

            .countdown-info h3 {
                font-size: 1.3rem;
            }
        }

        @media (max-width: 520px) {
            .timer-block .timer-num {
                font-size: 1.7rem;
                min-width: 44px;
                padding: 6px 3px;
                border-radius: var(--radius-sm);
            }

            .timer-separator {
                font-size: 1.3rem;
                padding-top: 6px;
            }

            .timer-block .timer-label {
                font-size: 0.7rem;
            }

            .countdown-timer {
                gap: 5px;
            }

            .timer-block {
                min-width: 48px;
            }
        }

        /* ==================== 票券式活动卡片 ==================== */
        .ticket-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
            gap: 24px;
        }

        .ticket-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: all var(--transition-normal);
            position: relative;
            display: flex;
            flex-direction: column;
        }

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

        .ticket-card-image {
            position: relative;
            height: 200px;
            overflow: hidden;
        }

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

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

        .ticket-card-badge {
            position: absolute;
            top: 14px;
            left: 14px;
            background: var(--accent);
            color: #fff;
            font-size: 0.75rem;
            font-weight: 700;
            padding: 5px 12px;
            border-radius: 20px;
            letter-spacing: 0.03em;
            z-index: 2;
        }

        .ticket-card-badge.upcoming {
            background: #5B6CF0;
        }

        .ticket-card-badge.ongoing {
            background: var(--accent);
            animation: pulse-badge 2s ease-in-out infinite;
        }

        @keyframes pulse-badge {
            0%,
            100% {
                box-shadow: 0 0 0 0 rgba(255, 61, 92, 0.5);
            }
            50% {
                box-shadow: 0 0 0 10px rgba(255, 61, 92, 0);
            }
        }

        .ticket-card-body {
            padding: 20px 22px;
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .ticket-card-body h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text);
            line-height: 1.4;
            letter-spacing: -0.01em;
        }

        .ticket-card-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        .ticket-card-meta span {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .ticket-card-meta .meta-icon {
            opacity: 0.7;
            font-size: 0.85rem;
        }

        .ticket-card-desc {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        .ticket-card-footer {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 14px 22px;
            border-top: 1px dashed var(--border-light);
            gap: 12px;
        }

        .ticket-reward {
            display: flex;
            align-items: center;
            gap: 5px;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--secondary);
        }

        .ticket-reward .reward-icon {
            font-size: 1rem;
        }

        .btn-ticket-cta {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            padding: 8px 18px;
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            font-size: 0.88rem;
            border-radius: 20px;
            transition: all var(--transition-fast);
            white-space: nowrap;
            letter-spacing: 0.01em;
        }

        .btn-ticket-cta:hover {
            background: var(--primary-dark);
            box-shadow: var(--shadow-glow);
            transform: translateY(-1px);
        }

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

        .btn-ticket-cta.outline {
            background: transparent;
            color: var(--primary);
            border: 1.5px solid var(--primary);
        }

        .btn-ticket-cta.outline:hover {
            background: rgba(255, 107, 53, 0.06);
            box-shadow: none;
        }

        @media (max-width: 768px) {
            .ticket-grid {
                grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
                gap: 16px;
            }

            .ticket-card-image {
                height: 170px;
            }

            .ticket-card-body {
                padding: 16px;
            }

            .ticket-card-footer {
                padding: 12px 16px;
                flex-wrap: wrap;
            }
        }

        @media (max-width: 520px) {
            .ticket-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }

            .ticket-card-image {
                height: 180px;
            }

            .ticket-card-body h3 {
                font-size: 1.05rem;
            }
        }

        /* ==================== 活动时间轴 ==================== */
        .timeline-section {
            background: var(--bg-card);
        }

        .timeline {
            position: relative;
            padding-left: 40px;
            max-width: 800px;
            margin: 0 auto;
        }

        .timeline::before {
            content: '';
            position: absolute;
            left: 16px;
            top: 0;
            bottom: 0;
            width: 3px;
            background: var(--border);
            border-radius: 3px;
        }

        .timeline-item {
            position: relative;
            margin-bottom: 32px;
            padding-left: 20px;
        }

        .timeline-item:last-child {
            margin-bottom: 0;
        }

        .timeline-dot {
            position: absolute;
            left: -40px;
            top: 4px;
            width: 16px;
            height: 16px;
            border-radius: 50%;
            background: var(--bg-card);
            border: 3px solid var(--border);
            z-index: 2;
            transition: all var(--transition-fast);
        }

        .timeline-item.active .timeline-dot {
            background: var(--primary);
            border-color: var(--primary);
            box-shadow: 0 0 0 6px rgba(255, 107, 53, 0.15);
            animation: pulse-dot-timeline 2s ease-in-out infinite;
        }

        @keyframes pulse-dot-timeline {
            0%,
            100% {
                box-shadow: 0 0 0 6px rgba(255, 107, 53, 0.15);
            }
            50% {
                box-shadow: 0 0 0 16px rgba(255, 107, 53, 0);
            }
        }

        .timeline-item.completed .timeline-dot {
            background: #4CAF50;
            border-color: #4CAF50;
        }

        .timeline-card {
            background: var(--bg);
            border-radius: var(--radius-md);
            padding: 20px 22px;
            border: 1px solid var(--border-light);
            transition: all var(--transition-normal);
        }

        .timeline-item.active .timeline-card {
            border-color: rgba(255, 107, 53, 0.3);
            box-shadow: var(--shadow-md);
        }

        .timeline-date {
            font-size: 0.82rem;
            font-weight: 600;
            color: var(--primary);
            letter-spacing: 0.03em;
            margin-bottom: 4px;
        }

        .timeline-item.completed .timeline-date {
            color: #4CAF50;
        }

        .timeline-card h4 {
            font-size: 1.08rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 4px;
        }

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

        .timeline-tag {
            display: inline-block;
            font-size: 0.72rem;
            font-weight: 600;
            padding: 2px 10px;
            border-radius: 12px;
            letter-spacing: 0.03em;
            margin-top: 6px;
        }

        .timeline-tag.ongoing-tag {
            background: rgba(255, 61, 92, 0.1);
            color: var(--accent);
        }

        .timeline-tag.upcoming-tag {
            background: rgba(91, 108, 240, 0.1);
            color: #5B6CF0;
        }

        .timeline-tag.done-tag {
            background: rgba(76, 175, 80, 0.1);
            color: #4CAF50;
        }

        @media (max-width: 768px) {
            .timeline {
                padding-left: 32px;
            }

            .timeline::before {
                left: 12px;
            }

            .timeline-dot {
                left: -32px;
                width: 14px;
                height: 14px;
            }

            .timeline-item {
                padding-left: 10px;
                margin-bottom: 24px;
            }

            .timeline-card {
                padding: 16px;
            }
        }

        @media (max-width: 520px) {
            .timeline {
                padding-left: 26px;
            }

            .timeline::before {
                left: 9px;
                width: 2px;
            }

            .timeline-dot {
                left: -26px;
                width: 12px;
                height: 12px;
                border-width: 2px;
            }

            .timeline-card h4 {
                font-size: 0.98rem;
            }
        }

        /* ==================== 数据信息条 ==================== */
        .info-strip {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            padding: 36px 0;
        }

        .info-strip-grid {
            display: flex;
            justify-content: space-around;
            flex-wrap: wrap;
            gap: 20px;
            text-align: center;
        }

        .info-strip-item .strip-num {
            font-size: 2.6rem;
            font-weight: 800;
            line-height: 1;
            letter-spacing: -0.01em;
        }

        .info-strip-item .strip-label {
            font-size: 0.9rem;
            opacity: 0.85;
            margin-top: 4px;
            letter-spacing: 0.02em;
        }

        @media (max-width: 768px) {
            .info-strip {
                padding: 28px 0;
            }

            .info-strip-item .strip-num {
                font-size: 2rem;
            }

            .info-strip-item .strip-label {
                font-size: 0.8rem;
            }
        }

        @media (max-width: 520px) {
            .info-strip-grid {
                gap: 16px;
            }

            .info-strip-item .strip-num {
                font-size: 1.6rem;
            }
        }

        /* ==================== 往期回顾 ==================== */
        .past-events-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
            gap: 18px;
        }

        .past-event-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border-light);
            transition: all var(--transition-normal);
            box-shadow: var(--shadow-sm);
        }

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

        .past-event-card img {
            width: 100%;
            height: 150px;
            object-fit: cover;
            opacity: 0.75;
            filter: grayscale(20%);
            transition: all var(--transition-normal);
        }

        .past-event-card:hover img {
            opacity: 0.9;
            filter: grayscale(0%);
        }

        .past-event-body {
            padding: 14px 16px;
        }

        .past-event-body h4 {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 4px;
        }

        .past-event-body .past-date {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        .past-event-body .past-tag {
            display: inline-block;
            font-size: 0.7rem;
            font-weight: 500;
            background: rgba(76, 175, 80, 0.1);
            color: #4CAF50;
            padding: 2px 10px;
            border-radius: 10px;
            margin-top: 6px;
        }

        @media (max-width: 768px) {
            .past-events-grid {
                grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
                gap: 14px;
            }

            .past-event-card img {
                height: 120px;
            }
        }

        @media (max-width: 520px) {
            .past-events-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }

            .past-event-card img {
                height: 100px;
            }

            .past-event-body {
                padding: 10px 12px;
            }

            .past-event-body h4 {
                font-size: 0.82rem;
            }
        }

        /* ==================== CTA 板块 ==================== */
        .cta-section {
            background: var(--bg-dark);
            color: #fff;
            padding: 60px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            bottom: -60px;
            right: -80px;
            width: 320px;
            height: 320px;
            background: radial-gradient(circle, rgba(255, 184, 0, 0.18) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-section h2 {
            font-size: 2.2rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            margin-bottom: 12px;
            position: relative;
            z-index: 1;
        }

        .cta-section p {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.78);
            max-width: 520px;
            margin: 0 auto 28px;
            position: relative;
            z-index: 1;
            line-height: 1.7;
        }

        .cta-buttons {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
            position: relative;
            z-index: 1;
        }

        .btn-cta-primary {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            padding: 14px 32px;
            background: linear-gradient(135deg, var(--secondary), #FFA000);
            color: #1B1C2E;
            font-weight: 700;
            font-size: 1rem;
            border-radius: 28px;
            letter-spacing: 0.02em;
            transition: all var(--transition-fast);
            box-shadow: 0 4px 20px rgba(255, 184, 0, 0.35);
        }

        .btn-cta-primary:hover {
            box-shadow: 0 6px 28px rgba(255, 184, 0, 0.5);
            transform: translateY(-2px);
        }

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

        .btn-cta-secondary {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            padding: 14px 32px;
            background: transparent;
            color: #fff;
            font-weight: 600;
            font-size: 1rem;
            border-radius: 28px;
            border: 2px solid rgba(255, 255, 255, 0.35);
            letter-spacing: 0.02em;
            transition: all var(--transition-fast);
        }

        .btn-cta-secondary:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.06);
        }

        @media (max-width: 768px) {
            .cta-section {
                padding: 44px 0;
            }

            .cta-section h2 {
                font-size: 1.7rem;
            }

            .cta-section p {
                font-size: 0.95rem;
            }

            .btn-cta-primary,
            .btn-cta-secondary {
                padding: 12px 24px;
                font-size: 0.9rem;
            }
        }

        @media (max-width: 520px) {
            .cta-section h2 {
                font-size: 1.4rem;
            }

            .btn-cta-primary,
            .btn-cta-secondary {
                padding: 10px 20px;
                font-size: 0.85rem;
                border-radius: 22px;
            }

            .cta-buttons {
                gap: 10px;
            }
        }

        /* ==================== FAQ ==================== */
        .faq-list {
            max-width: 760px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition-normal);
            box-shadow: var(--shadow-sm);
        }

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

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 22px;
            font-size: 1rem;
            font-weight: 600;
            color: var(--text);
            text-align: left;
            cursor: pointer;
            transition: all var(--transition-fast);
            gap: 14px;
            letter-spacing: 0.01em;
        }

        .faq-question:hover {
            color: var(--primary);
            background: rgba(255, 107, 53, 0.02);
        }

        .faq-icon {
            font-size: 1.2rem;
            color: var(--text-muted);
            transition: transform var(--transition-normal);
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: var(--bg-card-alt);
        }

        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            color: var(--primary);
            background: rgba(255, 107, 53, 0.1);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-normal), padding var(--transition-normal);
            padding: 0 22px;
            font-size: 0.93rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 22px 18px;
        }

        @media (max-width: 520px) {
            .faq-question {
                padding: 14px 16px;
                font-size: 0.9rem;
            }

            .faq-answer {
                padding: 0 16px;
                font-size: 0.85rem;
            }

            .faq-item.open .faq-answer {
                padding: 0 16px 14px;
            }
        }

        /* ==================== Footer ==================== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.78);
            padding: 50px 0 28px;
            font-size: 0.9rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 36px;
            margin-bottom: 36px;
        }

        .footer-brand .footer-logo {
            font-size: 1.2rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 10px;
            letter-spacing: -0.01em;
        }

        .footer-brand p {
            color: rgba(255, 255, 255, 0.6);
            line-height: 1.7;
            font-size: 0.88rem;
        }

        .footer-col h4 {
            font-size: 0.9rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: 0.02em;
        }

        .footer-col a {
            display: block;
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.88rem;
            padding: 5px 0;
            transition: color var(--transition-fast);
        }

        .footer-col a:hover {
            color: var(--secondary-light);
        }

        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 10px;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.45);
        }

        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }

            .footer-brand {
                grid-column: 1/-1;
            }
        }

        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }

            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        /* ==================== 响应式通用辅助 ==================== */
        @media (max-width: 1024px) {
            .container {
                padding: 0 20px;
            }
        }

        @media (max-width: 768px) {
            .container {
                padding: 0 16px;
            }
        }

        /* 无障碍焦点样式 */
        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 3px solid rgba(255, 107, 53, 0.5);
            outline-offset: 2px;
            border-radius: 4px;
        }

        .btn-nav-cta:focus-visible,
        .btn-ticket-cta:focus-visible,
        .btn-cta-primary:focus-visible,
        .btn-cta-secondary:focus-visible {
            outline: 3px solid rgba(255, 184, 0, 0.7);
            outline-offset: 3px;
        }