/* roulang page: index */
/* ===== Design Variables ===== */
        :root {
            --primary: #0b1128;
            --primary-light: #141c3a;
            --primary-dark: #060a1a;
            --accent: #d4a843;
            --accent-light: #f0d68a;
            --accent-dark: #b8912e;
            --bg-dark: #080c20;
            --bg-card: #111836;
            --bg-card-hover: #1a2348;
            --text-white: #f5f7fc;
            --text-light: #c8cedf;
            --text-muted: #7a84a8;
            --border-color: rgba(212, 168, 67, 0.25);
            --border-light: rgba(255, 255, 255, 0.08);
            --radius: 16px;
            --radius-sm: 10px;
            --radius-xs: 6px;
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.45);
            --shadow-glow: 0 0 40px rgba(212, 168, 67, 0.12);
            --transition: all 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
            --max-width: 1200px;
            --header-height: 76px;
        }

        /* ===== Reset & Base ===== */
        *,
        *::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-family);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-light);
            background: var(--bg-dark);
            min-height: 100vh;
            overflow-x: hidden;
        }
        a {
            color: var(--accent);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--accent-light);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-sm);
        }
        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
            outline: none;
            border: none;
            transition: var(--transition);
        }
        button {
            cursor: pointer;
            background: none;
        }
        ul,
        ol {
            list-style: none;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            color: var(--text-white);
            font-weight: 700;
            line-height: 1.25;
        }
        h1 {
            font-size: clamp(2.2rem, 6vw, 4.2rem);
        }
        h2 {
            font-size: clamp(1.6rem, 4vw, 2.6rem);
            margin-bottom: 0.5rem;
        }
        h3 {
            font-size: clamp(1.2rem, 2.5vw, 1.6rem);
        }
        h4 {
            font-size: 1.15rem;
        }
        p {
            color: var(--text-light);
            margin-bottom: 1rem;
        }
        :focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 3px;
            border-radius: 4px;
        }

        /* ===== Container ===== */
        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        @media (max-width: 768px) {
            .container {
                padding: 0 16px;
            }
        }

        /* ===== Section Spacing ===== */
        .section {
            padding: 80px 0;
        }
        .section-header {
            text-align: center;
            margin-bottom: 56px;
        }
        .section-header h2 {
            margin-bottom: 12px;
        }
        .section-header p {
            max-width: 620px;
            margin: 0 auto;
            color: var(--text-muted);
            font-size: 1.05rem;
        }
        .section-divider {
            width: 60px;
            height: 3px;
            background: linear-gradient(90deg, var(--accent), var(--accent-light));
            border-radius: 4px;
            margin: 16px auto 20px;
        }
        @media (max-width: 768px) {
            .section {
                padding: 56px 0;
            }
            .section-header {
                margin-bottom: 40px;
            }
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--header-height);
            background: rgba(11, 17, 40, 0.88);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .site-header.scrolled {
            background: rgba(8, 12, 32, 0.96);
            box-shadow: 0 4px 30px rgba(0, 0, 0, 0.5);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--header-height);
            gap: 20px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--text-white);
            letter-spacing: 0.5px;
            white-space: nowrap;
            flex-shrink: 0;
        }
        .logo i {
            color: var(--accent);
            font-size: 1.5rem;
        }
        .logo span {
            background: linear-gradient(135deg, var(--accent-light), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .logo:hover {
            color: var(--text-white);
        }

        /* Nav panel — card style */
        .nav-panel {
            display: flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.04);
            padding: 6px 10px;
            border-radius: 50px;
            border: 1px solid var(--border-light);
            backdrop-filter: blur(10px);
        }
        .nav-panel a {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 8px 20px;
            border-radius: 40px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-light);
            transition: var(--transition);
            white-space: nowrap;
        }
        .nav-panel a i {
            font-size: 0.85rem;
            color: var(--text-muted);
            transition: var(--transition);
        }
        .nav-panel a:hover {
            color: var(--text-white);
            background: rgba(255, 255, 255, 0.06);
        }
        .nav-panel a:hover i {
            color: var(--accent);
        }
        .nav-panel a.active {
            color: var(--text-white);
            background: rgba(212, 168, 67, 0.18);
            box-shadow: 0 0 20px rgba(212, 168, 67, 0.08);
        }
        .nav-panel a.active i {
            color: var(--accent);
        }

        /* Header CTA */
        .header-cta {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }
        .header-cta .btn-ghost {
            padding: 8px 18px;
            font-size: 0.88rem;
            font-weight: 500;
            color: var(--text-light);
            border-radius: 40px;
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .header-cta .btn-ghost:hover {
            background: rgba(255, 255, 255, 0.06);
            color: var(--text-white);
            border-color: rgba(255, 255, 255, 0.15);
        }
        .header-cta .btn-primary {
            padding: 8px 24px;
            font-size: 0.88rem;
            font-weight: 600;
            color: var(--primary);
            background: linear-gradient(135deg, var(--accent-light), var(--accent));
            border-radius: 40px;
            transition: var(--transition);
            box-shadow: 0 4px 20px rgba(212, 168, 67, 0.25);
        }
        .header-cta .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(212, 168, 67, 0.35);
        }

        /* Mobile menu toggle */
        .menu-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            background: rgba(255, 255, 255, 0.05);
            border-radius: 8px;
            border: 1px solid var(--border-light);
            cursor: pointer;
        }
        .menu-toggle span {
            display: block;
            width: 22px;
            height: 2px;
            background: var(--text-light);
            border-radius: 4px;
            transition: var(--transition);
        }
        .menu-toggle.active span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .menu-toggle.active span:nth-child(2) {
            opacity: 0;
        }
        .menu-toggle.active span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        /* Mobile nav */
        .mobile-nav {
            display: none;
            position: fixed;
            top: var(--header-height);
            left: 0;
            right: 0;
            background: rgba(8, 12, 32, 0.98);
            backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-light);
            padding: 20px 24px 28px;
            z-index: 999;
            transform: translateY(-12px);
            opacity: 0;
            pointer-events: none;
            transition: var(--transition);
        }
        .mobile-nav.open {
            transform: translateY(0);
            opacity: 1;
            pointer-events: auto;
        }
        .mobile-nav a {
            display: block;
            padding: 12px 16px;
            font-size: 1rem;
            font-weight: 500;
            color: var(--text-light);
            border-radius: var(--radius-xs);
            transition: var(--transition);
        }
        .mobile-nav a:hover,
        .mobile-nav a.active {
            color: var(--text-white);
            background: rgba(212, 168, 67, 0.12);
        }
        .mobile-nav a i {
            margin-right: 10px;
            color: var(--accent);
        }
        .mobile-nav .mobile-cta {
            margin-top: 16px;
            padding: 12px 24px;
            text-align: center;
            font-weight: 600;
            color: var(--primary);
            background: linear-gradient(135deg, var(--accent-light), var(--accent));
            border-radius: 40px;
        }

        @media (max-width: 900px) {
            .nav-panel {
                display: none;
            }
            .header-cta .btn-ghost,
            .header-cta .btn-primary {
                display: none;
            }
            .menu-toggle {
                display: flex;
            }
            .mobile-nav {
                display: block;
            }
        }

        /* ===== Hero ===== */
        .hero {
            position: relative;
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 120px 0 80px;
            overflow: hidden;
            background: var(--primary-dark);
        }
        .hero-bg {
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.55;
            transform: scale(1.02);
            transition: transform 8s ease;
        }
        .hero:hover .hero-bg {
            transform: scale(1.0);
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg,
                    rgba(8, 12, 32, 0.92) 0%,
                    rgba(8, 12, 32, 0.60) 40%,
                    rgba(8, 12, 32, 0.30) 70%,
                    rgba(8, 12, 32, 0.85) 100%);
        }
        .hero-content {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 860px;
            padding: 0 24px;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 22px;
            background: rgba(212, 168, 67, 0.15);
            border: 1px solid rgba(212, 168, 67, 0.25);
            border-radius: 50px;
            font-size: 0.85rem;
            color: var(--accent-light);
            font-weight: 500;
            margin-bottom: 28px;
            letter-spacing: 1px;
            backdrop-filter: blur(8px);
        }
        .hero-badge i {
            font-size: 0.75rem;
        }
        .hero h1 {
            font-size: clamp(2.4rem, 7vw, 4.8rem);
            font-weight: 900;
            line-height: 1.1;
            margin-bottom: 20px;
            background: linear-gradient(135deg, #f5f7fc 0%, #c8cedf 50%, #f0d68a 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero h1 em {
            font-style: normal;
            background: linear-gradient(135deg, var(--accent-light), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero p {
            font-size: clamp(1rem, 2vw, 1.25rem);
            color: var(--text-light);
            max-width: 620px;
            margin: 0 auto 36px;
            line-height: 1.8;
            opacity: 0.85;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            justify-content: center;
            align-items: center;
        }
        .hero-actions .btn-primary {
            padding: 16px 44px;
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--primary);
            background: linear-gradient(135deg, var(--accent-light), var(--accent));
            border-radius: 50px;
            box-shadow: 0 8px 36px rgba(212, 168, 67, 0.30);
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }
        .hero-actions .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 48px rgba(212, 168, 67, 0.45);
        }
        .hero-actions .btn-secondary {
            padding: 16px 36px;
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text-white);
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--border-light);
            border-radius: 50px;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 10px;
            backdrop-filter: blur(8px);
        }
        .hero-actions .btn-secondary:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: rgba(255, 255, 255, 0.2);
            transform: translateY(-2px);
        }
        .hero-stats {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 40px 60px;
            margin-top: 60px;
            padding-top: 40px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }
        .hero-stat {
            text-align: center;
        }
        .hero-stat .num {
            font-size: 2rem;
            font-weight: 800;
            color: var(--text-white);
            letter-spacing: 1px;
        }
        .hero-stat .num span {
            color: var(--accent);
        }
        .hero-stat .label {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-top: 4px;
        }
        @media (max-width: 768px) {
            .hero {
                min-height: 90vh;
                padding: 100px 0 60px;
            }
            .hero-stats {
                gap: 24px 40px;
                margin-top: 40px;
                padding-top: 28px;
            }
            .hero-stat .num {
                font-size: 1.5rem;
            }
        }

        /* ===== Buttons ===== */
        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--accent);
            border: 1.5px solid var(--accent);
            border-radius: 50px;
            background: transparent;
            transition: var(--transition);
        }
        .btn-outline:hover {
            background: rgba(212, 168, 67, 0.12);
            color: var(--accent-light);
            transform: translateY(-2px);
        }

        /* ===== Features Section ===== */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 28px;
        }
        .feature-card {
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius);
            padding: 36px 28px 32px;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }
        .feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--accent), var(--accent-light));
            opacity: 0;
            transition: var(--transition);
        }
        .feature-card:hover {
            background: var(--bg-card-hover);
            transform: translateY(-6px);
            box-shadow: var(--shadow-card);
            border-color: rgba(212, 168, 67, 0.2);
        }
        .feature-card:hover::before {
            opacity: 1;
        }
        .feature-card .icon {
            width: 56px;
            height: 56px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            color: var(--accent);
            background: rgba(212, 168, 67, 0.10);
            border-radius: 14px;
            margin-bottom: 20px;
            transition: var(--transition);
        }
        .feature-card:hover .icon {
            background: rgba(212, 168, 67, 0.18);
            transform: scale(1.05);
        }
        .feature-card h3 {
            margin-bottom: 10px;
        }
        .feature-card p {
            font-size: 0.95rem;
            color: var(--text-muted);
            margin-bottom: 0;
        }
        .feature-card .tag {
            display: inline-block;
            margin-top: 16px;
            padding: 4px 14px;
            font-size: 0.75rem;
            font-weight: 500;
            color: var(--accent);
            background: rgba(212, 168, 67, 0.10);
            border-radius: 20px;
            letter-spacing: 0.3px;
        }

        /* ===== Categories Section ===== */
        .categories-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            gap: 24px;
        }
        .category-card {
            position: relative;
            border-radius: var(--radius);
            overflow: hidden;
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            transition: var(--transition);
            min-height: 260px;
            display: flex;
            align-items: flex-end;
        }
        .category-card .cat-bg {
            position: absolute;
            inset: 0;
            background-size: cover;
            background-position: center;
            opacity: 0.25;
            transition: var(--transition);
        }
        .category-card:hover .cat-bg {
            opacity: 0.35;
            transform: scale(1.03);
        }
        .category-card .cat-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(0deg, rgba(8, 12, 32, 0.92) 20%, rgba(8, 12, 32, 0.30) 70%);
        }
        .category-card .cat-body {
            position: relative;
            z-index: 2;
            padding: 28px 24px;
            width: 100%;
        }
        .category-card .cat-body h3 {
            margin-bottom: 6px;
            font-size: 1.2rem;
        }
        .category-card .cat-body p {
            font-size: 0.88rem;
            color: var(--text-muted);
            margin-bottom: 14px;
        }
        .category-card .cat-body .cat-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 0.88rem;
            font-weight: 600;
            color: var(--accent);
            transition: var(--transition);
        }
        .category-card .cat-body .cat-link i {
            transition: var(--transition);
        }
        .category-card .cat-body .cat-link:hover i {
            transform: translateX(4px);
        }

        /* ===== Latest News / CMS List ===== */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 28px;
        }
        .news-card {
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius);
            overflow: hidden;
            transition: var(--transition);
        }
        .news-card:hover {
            background: var(--bg-card-hover);
            transform: translateY(-4px);
            box-shadow: var(--shadow-card);
            border-color: rgba(212, 168, 67, 0.15);
        }
        .news-card .news-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            border-radius: 0;
            transition: var(--transition);
        }
        .news-card:hover .news-img {
            transform: scale(1.02);
        }
        .news-card .news-body {
            padding: 24px 20px 22px;
        }
        .news-card .news-meta {
            display: flex;
            align-items: center;
            gap: 14px;
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-bottom: 10px;
        }
        .news-card .news-meta .cat-badge {
            padding: 2px 12px;
            background: rgba(212, 168, 67, 0.12);
            color: var(--accent);
            border-radius: 20px;
            font-weight: 500;
            font-size: 0.75rem;
        }
        .news-card .news-body h3 {
            font-size: 1.1rem;
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .news-card .news-body h3 a {
            color: var(--text-white);
        }
        .news-card .news-body h3 a:hover {
            color: var(--accent-light);
        }
        .news-card .news-body p {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 0;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-empty {
            text-align: center;
            padding: 48px 24px;
            color: var(--text-muted);
            background: var(--bg-card);
            border-radius: var(--radius);
            border: 1px dashed var(--border-light);
        }
        .news-empty i {
            font-size: 2rem;
            margin-bottom: 16px;
            color: var(--text-muted);
            opacity: 0.4;
        }

        /* ===== Stats / Data Section ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 24px;
        }
        .stat-card {
            text-align: center;
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius);
            padding: 36px 20px 30px;
            transition: var(--transition);
        }
        .stat-card:hover {
            background: var(--bg-card-hover);
            transform: translateY(-4px);
            box-shadow: var(--shadow-card);
        }
        .stat-card .stat-icon {
            font-size: 2rem;
            color: var(--accent);
            margin-bottom: 12px;
            opacity: 0.7;
        }
        .stat-card .stat-num {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--text-white);
            line-height: 1.2;
        }
        .stat-card .stat-num span {
            color: var(--accent);
        }
        .stat-card .stat-label {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-top: 6px;
        }

        /* ===== Advantages /图文区块 ===== */
        .advantage-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
            margin-bottom: 60px;
        }
        .advantage-row:last-child {
            margin-bottom: 0;
        }
        .advantage-row.reverse {
            direction: rtl;
        }
        .advantage-row.reverse>* {
            direction: ltr;
        }
        .advantage-img {
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
        }
        .advantage-img img {
            width: 100%;
            height: 320px;
            object-fit: cover;
            border-radius: 0;
            transition: var(--transition);
        }
        .advantage-img:hover img {
            transform: scale(1.02);
        }
        .advantage-text h3 {
            margin-bottom: 14px;
        }
        .advantage-text p {
            color: var(--text-muted);
            font-size: 0.98rem;
        }
        .advantage-text .adv-list {
            margin-top: 18px;
        }
        .advantage-text .adv-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            padding: 8px 0;
            font-size: 0.95rem;
            color: var(--text-light);
        }
        .advantage-text .adv-list li i {
            color: var(--accent);
            font-size: 0.85rem;
            margin-top: 4px;
            flex-shrink: 0;
        }
        @media (max-width: 820px) {
            .advantage-row {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .advantage-row.reverse {
                direction: ltr;
            }
            .advantage-img img {
                height: 220px;
            }
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 780px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-sm);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: rgba(212, 168, 67, 0.15);
        }
        .faq-item .faq-q {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 24px;
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-white);
            cursor: pointer;
            gap: 16px;
            transition: var(--transition);
            background: none;
            width: 100%;
            text-align: left;
        }
        .faq-item .faq-q i {
            color: var(--accent);
            font-size: 0.85rem;
            transition: var(--transition);
            flex-shrink: 0;
        }
        .faq-item .faq-q:hover {
            color: var(--accent-light);
        }
        .faq-item.open .faq-q i {
            transform: rotate(180deg);
        }
        .faq-item .faq-a {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            padding: 0 24px;
            color: var(--text-muted);
            font-size: 0.93rem;
            line-height: 1.7;
        }
        .faq-item.open .faq-a {
            max-height: 300px;
            padding: 0 24px 20px;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary-dark) 100%);
            border: 1px solid var(--border-light);
            border-radius: var(--radius);
            padding: 60px 48px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(circle at 30% 40%, rgba(212, 168, 67, 0.05) 0%, transparent 60%);
            pointer-events: none;
        }
        .cta-section h2 {
            font-size: clamp(1.6rem, 3.5vw, 2.4rem);
            margin-bottom: 12px;
            position: relative;
        }
        .cta-section p {
            max-width: 520px;
            margin: 0 auto 28px;
            color: var(--text-muted);
            position: relative;
        }
        .cta-section .cta-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            justify-content: center;
            position: relative;
        }
        .cta-section .btn-primary {
            padding: 16px 40px;
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--primary);
            background: linear-gradient(135deg, var(--accent-light), var(--accent));
            border-radius: 50px;
            box-shadow: 0 8px 32px rgba(212, 168, 67, 0.25);
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }
        .cta-section .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 44px rgba(212, 168, 67, 0.40);
        }
        .cta-section .btn-outline {
            border-color: var(--text-muted);
            color: var(--text-light);
        }
        .cta-section .btn-outline:hover {
            border-color: var(--accent);
            color: var(--accent);
            background: rgba(212, 168, 67, 0.08);
        }
        @media (max-width: 768px) {
            .cta-section {
                padding: 40px 24px;
            }
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--primary-dark);
            border-top: 1px solid var(--border-light);
            padding: 56px 0 32px;
            margin-top: 80px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand .logo {
            font-size: 1.2rem;
            margin-bottom: 12px;
        }
        .footer-brand p {
            font-size: 0.9rem;
            color: var(--text-muted);
            max-width: 300px;
        }
        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-white);
            margin-bottom: 16px;
        }
        .footer-col a {
            display: block;
            padding: 5px 0;
            font-size: 0.88rem;
            color: var(--text-muted);
            transition: var(--transition);
        }
        .footer-col a:hover {
            color: var(--accent-light);
            padding-left: 4px;
        }
        .footer-col a i {
            margin-right: 8px;
            font-size: 0.75rem;
            color: var(--accent);
        }
        .footer-bottom {
            border-top: 1px solid var(--border-light);
            padding-top: 24px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            font-size: 0.82rem;
            color: var(--text-muted);
        }
        .footer-bottom a {
            color: var(--text-muted);
        }
        .footer-bottom a:hover {
            color: var(--accent-light);
        }
        .footer-bottom .social-links {
            display: flex;
            gap: 14px;
        }
        .footer-bottom .social-links a {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border-light);
            color: var(--text-muted);
            font-size: 0.9rem;
            transition: var(--transition);
        }
        .footer-bottom .social-links a:hover {
            background: rgba(212, 168, 67, 0.12);
            border-color: var(--accent);
            color: var(--accent);
            transform: translateY(-2px);
        }
        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px 24px;
            }
            .footer-brand {
                grid-column: 1 / -1;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }
        @media (max-width: 480px) {
            .footer-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ===== Scrollbar ===== */
        ::-webkit-scrollbar {
            width: 6px;
            height: 6px;
        }
        ::-webkit-scrollbar-track {
            background: var(--bg-dark);
        }
        ::-webkit-scrollbar-thumb {
            background: var(--text-muted);
            border-radius: 10px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: var(--accent);
        }

        /* ===== Extra utilities ===== */
        .text-center {
            text-align: center;
        }
        .mt-20 {
            margin-top: 20px;
        }
        .mb-20 {
            margin-bottom: 20px;
        }
        .gap-16 {
            gap: 16px;
        }
        .flex-center {
            display: flex;
            align-items: center;
            justify-content: center;
        }

/* roulang page: article */
/* ============================================
           设计变量与基础重置
           ============================================ */
        :root {
            --primary: #e63946;
            --primary-dark: #c1121f;
            --primary-light: #ff6b6b;
            --accent: #f4a261;
            --accent-dark: #e76f51;
            --bg-dark: #0b0f1a;
            --bg-card: #141a28;
            --bg-section: #0f1420;
            --bg-light: #1a2235;
            --text-primary: #f1f3f5;
            --text-secondary: #a8b2c9;
            --text-muted: #6b7a99;
            --border-color: #2a3347;
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
            --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.4);
            --shadow-lg: 0 20px 48px rgba(0, 0, 0, 0.5);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            --container-max: 1200px;
            --nav-height: 72px;
        }

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

        html { scroll-behavior: smooth; }

        body {
            font-family: var(--font-sans);
            background-color: var(--bg-dark);
            color: var(--text-primary);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a { color: var(--accent); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--primary-light); }

        img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-md); }

        ul, ol { list-style: none; }

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

        /* ============================================
           导航栏 - 卡片化导航面板
           ============================================ */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(11, 15, 26, 0.85);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid rgba(42, 51, 71, 0.5);
            height: var(--nav-height);
            transition: var(--transition);
        }

        .site-header.scrolled {
            background: rgba(11, 15, 26, 0.96);
            box-shadow: var(--shadow-md);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--nav-height);
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: -0.5px;
        }
        .logo i {
            color: var(--primary);
            font-size: 1.6rem;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .logo span { background: linear-gradient(135deg, #fff, #cbd5e1); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }

        .nav-panel {
            display: flex;
            align-items: center;
            gap: 6px;
            background: rgba(26, 34, 53, 0.7);
            padding: 4px 6px;
            border-radius: var(--radius-xl);
            border: 1px solid rgba(42, 51, 71, 0.5);
            backdrop-filter: blur(8px);
        }
        .nav-panel a {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 8px 18px;
            border-radius: var(--radius-lg);
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: var(--transition);
            white-space: nowrap;
        }
        .nav-panel a i { font-size: 0.95rem; }
        .nav-panel a:hover { color: var(--text-primary); background: rgba(255,255,255,0.06); }
        .nav-panel a.active, .nav-panel a:active {
            color: #fff;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            box-shadow: 0 4px 16px rgba(230, 57, 70, 0.35);
        }

        .nav-cta {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .nav-cta .btn-primary {
            padding: 8px 22px;
            border-radius: var(--radius-lg);
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            font-weight: 600;
            font-size: 0.9rem;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            box-shadow: 0 4px 16px rgba(230, 57, 70, 0.3);
        }
        .nav-cta .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(230, 57, 70, 0.45);
        }
        .nav-cta .btn-outline {
            padding: 8px 18px;
            border-radius: var(--radius-lg);
            background: transparent;
            color: var(--text-secondary);
            border: 1px solid var(--border-color);
            font-weight: 500;
            font-size: 0.9rem;
            cursor: pointer;
            transition: var(--transition);
        }
        .nav-cta .btn-outline:hover { border-color: var(--primary); color: var(--primary); }

        .menu-toggle { display: none; background: none; border: none; color: var(--text-primary); font-size: 1.5rem; cursor: pointer; padding: 8px; }

        /* ============================================
           文章页 Banner
           ============================================ */
        .article-banner {
            margin-top: var(--nav-height);
            position: relative;
            padding: 80px 0 60px;
            background: linear-gradient(135deg, #0f1420 0%, #1a2235 50%, #0b0f1a 100%);
            border-bottom: 1px solid var(--border-color);
            overflow: hidden;
        }
        .article-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.12;
            pointer-events: none;
        }
        .article-banner .container { position: relative; z-index: 2; }

        .article-breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: 24px;
            flex-wrap: wrap;
        }
        .article-breadcrumb a { color: var(--text-muted); }
        .article-breadcrumb a:hover { color: var(--accent); }
        .article-breadcrumb i { font-size: 0.7rem; color: var(--text-muted); }

        .article-meta-head {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
            margin-bottom: 16px;
        }
        .article-category-badge {
            display: inline-block;
            padding: 4px 16px;
            border-radius: var(--radius-lg);
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.5px;
        }
        .article-date {
            font-size: 0.85rem;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .article-date i { font-size: 0.8rem; }

        .article-banner h1 {
            font-size: 2.6rem;
            font-weight: 800;
            line-height: 1.25;
            letter-spacing: -0.02em;
            color: #fff;
            max-width: 900px;
            text-shadow: 0 2px 20px rgba(0,0,0,0.3);
        }

        /* ============================================
           文章正文区域
           ============================================ */
        .article-main {
            padding: 60px 0 80px;
            background: var(--bg-dark);
        }

        .article-layout {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 48px;
        }

        .article-content {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 40px;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
        }

        .article-content .content-body {
            font-size: 1.05rem;
            line-height: 1.9;
            color: var(--text-primary);
        }
        .article-content .content-body p {
            margin-bottom: 1.4em;
        }
        .article-content .content-body h2,
        .article-content .content-body h3 {
            margin-top: 1.6em;
            margin-bottom: 0.6em;
            font-weight: 700;
            color: #fff;
        }
        .article-content .content-body h2 { font-size: 1.6rem; }
        .article-content .content-body h3 { font-size: 1.25rem; }
        .article-content .content-body img {
            border-radius: var(--radius-md);
            margin: 1.5em 0;
            box-shadow: var(--shadow-sm);
        }
        .article-content .content-body ul,
        .article-content .content-body ol {
            margin: 1em 0;
            padding-left: 1.5em;
        }
        .article-content .content-body li {
            margin-bottom: 0.5em;
            list-style: disc;
        }
        .article-content .content-body blockquote {
            border-left: 4px solid var(--primary);
            padding: 12px 20px;
            margin: 1.5em 0;
            background: rgba(230, 57, 70, 0.06);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-secondary);
            font-style: italic;
        }
        .article-content .content-body a {
            color: var(--accent);
            text-decoration: underline;
        }
        .article-content .content-body a:hover { color: var(--primary-light); }

        .article-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 32px;
            padding-top: 24px;
            border-top: 1px solid var(--border-color);
        }
        .article-tags .tag {
            display: inline-block;
            padding: 4px 14px;
            border-radius: var(--radius-lg);
            background: var(--bg-light);
            color: var(--text-secondary);
            font-size: 0.8rem;
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }
        .article-tags .tag:hover { border-color: var(--primary); color: var(--primary); }

        /* 侧栏 */
        .article-sidebar {
            display: flex;
            flex-direction: column;
            gap: 32px;
        }

        .sidebar-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 28px;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
        }
        .sidebar-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .sidebar-card h3 i { color: var(--primary); }

        .sidebar-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .sidebar-list-item {
            display: flex;
            gap: 12px;
            align-items: flex-start;
            padding: 10px 0;
            border-bottom: 1px solid rgba(42, 51, 71, 0.4);
        }
        .sidebar-list-item:last-child { border-bottom: none; }
        .sidebar-list-item img {
            width: 70px;
            height: 50px;
            object-fit: cover;
            border-radius: var(--radius-sm);
            flex-shrink: 0;
        }
        .sidebar-list-item .info {
            flex: 1;
            min-width: 0;
        }
        .sidebar-list-item .info h4 {
            font-size: 0.88rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 4px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .sidebar-list-item .info h4 a { color: inherit; }
        .sidebar-list-item .info h4 a:hover { color: var(--accent); }
        .sidebar-list-item .info span {
            font-size: 0.75rem;
            color: var(--text-muted);
        }

        .sidebar-cta {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            border: none;
            text-align: center;
        }
        .sidebar-cta h3 { color: #fff; justify-content: center; }
        .sidebar-cta p { color: rgba(255,255,255,0.8); font-size: 0.9rem; margin-bottom: 16px; }
        .sidebar-cta .btn-light {
            display: inline-block;
            padding: 10px 30px;
            border-radius: var(--radius-lg);
            background: #fff;
            color: var(--primary-dark);
            font-weight: 700;
            font-size: 0.95rem;
            transition: var(--transition);
        }
        .sidebar-cta .btn-light:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(0,0,0,0.3); }

        /* 未找到文章 */
        .article-not-found {
            text-align: center;
            padding: 80px 20px;
        }
        .article-not-found i { font-size: 4rem; color: var(--text-muted); margin-bottom: 24px; }
        .article-not-found h2 { font-size: 2rem; color: var(--text-primary); margin-bottom: 12px; }
        .article-not-found p { color: var(--text-secondary); margin-bottom: 24px; }
        .article-not-found .btn-back {
            display: inline-block;
            padding: 12px 32px;
            border-radius: var(--radius-lg);
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            font-weight: 600;
            transition: var(--transition);
        }
        .article-not-found .btn-back:hover { transform: translateY(-2px); box-shadow: 0 8px 28px rgba(230,57,70,0.4); }

        /* ============================================
           页脚
           ============================================ */
        .site-footer {
            background: var(--bg-card);
            border-top: 1px solid var(--border-color);
            padding: 60px 0 30px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand .logo { margin-bottom: 16px; }
        .footer-brand p { color: var(--text-secondary); font-size: 0.9rem; line-height: 1.7; max-width: 360px; }
        .footer-col h4 { color: #fff; font-size: 1rem; font-weight: 700; margin-bottom: 16px; }
        .footer-col a {
            display: flex; align-items: center; gap: 6px;
            color: var(--text-secondary); font-size: 0.9rem; padding: 5px 0;
            transition: var(--transition);
        }
        .footer-col a i { font-size: 0.65rem; color: var(--text-muted); }
        .footer-col a:hover { color: var(--accent); padding-left: 4px; }
        .footer-bottom {
            display: flex; align-items: center; justify-content: space-between;
            padding-top: 24px; border-top: 1px solid var(--border-color);
            font-size: 0.85rem; color: var(--text-muted); flex-wrap: wrap; gap: 16px;
        }
        .footer-bottom a { color: var(--text-muted); }
        .footer-bottom a:hover { color: var(--accent); }
        .social-links { display: flex; gap: 12px; }
        .social-links a {
            display: flex; align-items: center; justify-content: center;
            width: 38px; height: 38px; border-radius: 50%;
            background: var(--bg-light); color: var(--text-secondary);
            font-size: 1.1rem; transition: var(--transition);
        }
        .social-links a:hover { background: var(--primary); color: #fff; transform: translateY(-2px); }

        /* ============================================
           响应式
           ============================================ */
        @media (max-width: 1024px) {
            .article-layout { grid-template-columns: 1fr; }
            .article-sidebar { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
            .footer-grid { grid-template-columns: 1fr 1fr; }
        }

        @media (max-width: 768px) {
            .menu-toggle { display: block; }
            .nav-panel {
                position: fixed;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: rgba(11,15,26,0.98);
                flex-direction: column;
                padding: 16px;
                border-radius: 0;
                border: none;
                border-bottom: 1px solid var(--border-color);
                transform: translateY(-120%);
                opacity: 0;
                transition: var(--transition);
                pointer-events: none;
                backdrop-filter: blur(20px);
            }
            .nav-panel.open { transform: translateY(0); opacity: 1; pointer-events: auto; }
            .nav-panel a { width: 100%; justify-content: center; padding: 12px; font-size: 1rem; }
            .nav-cta { display: none; }
            .nav-cta.mobile-show { display: flex; margin-top: 8px; width: 100%; justify-content: center; }

            .article-banner { padding: 60px 0 40px; }
            .article-banner h1 { font-size: 1.8rem; }
            .article-content { padding: 24px; }
            .article-content .content-body { font-size: 0.98rem; }

            .article-sidebar { grid-template-columns: 1fr; }

            .footer-grid { grid-template-columns: 1fr; gap: 24px; }
            .footer-bottom { flex-direction: column; text-align: center; }
        }

        @media (max-width: 520px) {
            .container { padding: 0 16px; }
            .article-banner h1 { font-size: 1.4rem; }
            .article-content { padding: 16px; }
            .article-meta-head { gap: 10px; }
            .article-content .content-body { font-size: 0.92rem; }
            .sidebar-list-item img { width: 56px; height: 42px; }
        }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #0f1a2e;
            --primary-light: #1c3d6b;
            --primary-dark: #070b14;
            --accent: #d4a843;
            --accent-hover: #e8bc5a;
            --accent-glow: rgba(212, 168, 67, 0.25);
            --bg-light: #f5f7fa;
            --bg-white: #ffffff;
            --bg-card: #ffffff;
            --bg-dark: #0a0f1a;
            --text-primary: #1a2332;
            --text-secondary: #6b7a8d;
            --text-light: #ffffff;
            --text-muted: #9aa8b9;
            --border: #e0e4ea;
            --border-light: #f0f2f5;
            --radius: 16px;
            --radius-sm: 10px;
            --radius-xs: 6px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.05);
            --shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.12);
            --shadow-accent: 0 8px 30px rgba(212, 168, 67, 0.25);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-family: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --nav-height: 72px;
            --container-max: 1240px;
            --grid-gap: 28px;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-family);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background: var(--bg-light);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            transition: var(--transition);
        }

        button {
            cursor: pointer;
            background: none;
        }

        ul,
        ol {
            list-style: none;
        }

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

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

        /* ===== 导航栏 ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(15, 26, 46, 0.95);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            height: var(--nav-height);
            transition: var(--transition);
        }

        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 900;
            color: var(--text-light);
            letter-spacing: 1px;
        }

        .logo i {
            font-size: 28px;
            color: var(--accent);
            background: var(--accent-glow);
            width: 44px;
            height: 44px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 12px;
        }

        .logo span {
            background: linear-gradient(135deg, #ffffff 30%, var(--accent) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .nav-panel {
            display: flex;
            align-items: center;
            gap: 6px;
            background: rgba(255, 255, 255, 0.06);
            padding: 4px;
            border-radius: 14px;
            border: 1px solid rgba(255, 255, 255, 0.08);
        }

        .nav-panel a {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 10px 22px;
            border-radius: 10px;
            font-size: 15px;
            font-weight: 500;
            color: rgba(255, 255, 255, 0.7);
            transition: var(--transition);
            letter-spacing: 0.3px;
            white-space: nowrap;
        }

        .nav-panel a i {
            font-size: 16px;
        }

        .nav-panel a:hover {
            color: var(--text-light);
            background: rgba(255, 255, 255, 0.1);
        }

        .nav-panel a.active {
            color: var(--primary);
            background: var(--accent);
            box-shadow: 0 4px 15px var(--accent-glow);
        }

        .nav-panel a.active i {
            color: var(--primary);
        }

        /* 移动端导航 */
        .nav-toggle {
            display: none;
            width: 44px;
            height: 44px;
            align-items: center;
            justify-content: center;
            color: var(--text-light);
            font-size: 24px;
            border-radius: 10px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.08);
        }

        .mobile-menu {
            display: none;
            position: fixed;
            top: var(--nav-height);
            left: 0;
            right: 0;
            background: rgba(15, 26, 46, 0.98);
            backdrop-filter: blur(20px);
            padding: 20px 24px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            z-index: 999;
            transform: translateY(-120%);
            transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        }

        .mobile-menu.open {
            transform: translateY(0);
        }

        .mobile-menu a {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 14px 18px;
            border-radius: 10px;
            font-size: 16px;
            font-weight: 500;
            color: rgba(255, 255, 255, 0.7);
            border-bottom: 1px solid rgba(255, 255, 255, 0.04);
        }

        .mobile-menu a:last-child {
            border-bottom: none;
        }

        .mobile-menu a i {
            width: 24px;
            text-align: center;
            font-size: 18px;
        }

        .mobile-menu a.active {
            color: var(--accent);
            background: var(--accent-glow);
        }

        .mobile-menu a:hover {
            color: var(--text-light);
            background: rgba(255, 255, 255, 0.06);
        }

        /* ===== Hero / Banner ===== */
        .category-hero {
            padding-top: var(--nav-height);
            min-height: 480px;
            display: flex;
            align-items: center;
            position: relative;
            background: var(--bg-dark);
            overflow: hidden;
        }

        .category-hero .hero-bg {
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.45;
            transform: scale(1.05);
            transition: transform 8s ease;
        }

        .category-hero:hover .hero-bg {
            transform: scale(1);
        }

        .category-hero .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 26, 46, 0.92) 0%, rgba(15, 26, 46, 0.6) 50%, rgba(10, 15, 26, 0.85) 100%);
        }

        .category-hero .hero-content {
            position: relative;
            z-index: 2;
            max-width: 760px;
            padding: 80px 0 70px;
        }

        .category-hero .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--accent-glow);
            color: var(--accent);
            font-size: 14px;
            font-weight: 600;
            padding: 6px 18px;
            border-radius: 50px;
            border: 1px solid rgba(212, 168, 67, 0.3);
            margin-bottom: 24px;
            letter-spacing: 0.5px;
        }

        .category-hero .hero-tag i {
            font-size: 12px;
        }

        .category-hero h1 {
            font-size: clamp(36px, 5.5vw, 64px);
            font-weight: 900;
            color: var(--text-light);
            line-height: 1.15;
            margin-bottom: 20px;
            letter-spacing: -0.5px;
        }

        .category-hero h1 span {
            background: linear-gradient(135deg, var(--accent) 0%, #f0d080 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .category-hero p {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.75);
            line-height: 1.8;
            max-width: 620px;
            margin-bottom: 32px;
            font-weight: 400;
        }

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

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 32px;
            border-radius: 50px;
            font-size: 16px;
            font-weight: 600;
            transition: var(--transition);
            border: none;
            letter-spacing: 0.3px;
        }

        .btn-primary {
            background: var(--accent);
            color: var(--primary);
            box-shadow: 0 4px 20px var(--accent-glow);
        }

        .btn-primary:hover {
            background: var(--accent-hover);
            box-shadow: 0 8px 35px var(--accent-glow);
            transform: translateY(-2px);
        }

        .btn-outline-light {
            background: transparent;
            color: var(--text-light);
            border: 2px solid rgba(255, 255, 255, 0.25);
        }

        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: var(--accent);
            color: var(--accent);
            transform: translateY(-2px);
        }

        /* ===== 通用板块样式 ===== */
        .section {
            padding: 80px 0;
        }

        .section-header {
            text-align: center;
            margin-bottom: 52px;
        }

        .section-header h2 {
            font-size: clamp(28px, 3.2vw, 40px);
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 14px;
            letter-spacing: -0.3px;
        }

        .section-header h2 i {
            color: var(--accent);
            margin-right: 8px;
        }

        .section-header .subtitle {
            font-size: 17px;
            color: var(--text-secondary);
            max-width: 600px;
            margin: 0 auto;
            line-height: 1.7;
        }

        .section-header .divider {
            width: 60px;
            height: 4px;
            background: linear-gradient(90deg, var(--accent), var(--accent-hover));
            border-radius: 4px;
            margin: 18px auto 0;
        }

        .bg-white {
            background: var(--bg-white);
        }

        .bg-light {
            background: var(--bg-light);
        }

        .bg-dark-section {
            background: var(--bg-dark);
            color: var(--text-light);
        }

        .bg-dark-section .section-header h2 {
            color: var(--text-light);
        }

        .bg-dark-section .section-header .subtitle {
            color: rgba(255, 255, 255, 0.65);
        }

        /* ===== 分类导语 ===== */
        .intro-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .intro-text h3 {
            font-size: 28px;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--text-primary);
        }

        .intro-text p {
            color: var(--text-secondary);
            font-size: 16px;
            line-height: 1.8;
            margin-bottom: 20px;
        }

        .intro-text .feature-list {
            display: grid;
            gap: 12px;
        }

        .intro-text .feature-list li {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 15px;
            color: var(--text-primary);
        }

        .intro-text .feature-list li i {
            color: var(--accent);
            font-size: 18px;
            width: 28px;
            height: 28px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(212, 168, 67, 0.1);
            border-radius: 8px;
            flex-shrink: 0;
        }

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

        .intro-image img {
            width: 100%;
            height: 380px;
            object-fit: cover;
            transition: var(--transition);
        }

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

        .intro-image .image-badge {
            position: absolute;
            bottom: 20px;
            left: 20px;
            background: rgba(15, 26, 46, 0.85);
            backdrop-filter: blur(10px);
            color: var(--text-light);
            padding: 10px 20px;
            border-radius: 10px;
            font-size: 14px;
            font-weight: 500;
            display: flex;
            align-items: center;
            gap: 8px;
            border: 1px solid rgba(255, 255, 255, 0.1);
        }

        .intro-image .image-badge i {
            color: var(--accent);
        }

        /* ===== 资讯卡片网格 ===== */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--grid-gap);
        }

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

        .news-card:hover {
            box-shadow: var(--shadow);
            transform: translateY(-4px);
            border-color: rgba(212, 168, 67, 0.2);
        }

        .news-card .card-image {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 10;
        }

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

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

        .news-card .card-image .card-tag {
            position: absolute;
            top: 14px;
            left: 14px;
            background: var(--accent);
            color: var(--primary);
            font-size: 12px;
            font-weight: 700;
            padding: 4px 14px;
            border-radius: 50px;
            letter-spacing: 0.3px;
        }

        .news-card .card-body {
            padding: 24px 22px 22px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .news-card .card-body .card-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 10px;
        }

        .news-card .card-body .card-meta i {
            margin-right: 4px;
        }

        .news-card .card-body h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 10px;
            line-height: 1.4;
            transition: var(--transition);
        }

        .news-card:hover .card-body h3 {
            color: var(--primary-light);
        }

        .news-card .card-body p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            flex: 1;
            margin-bottom: 16px;
        }

        .news-card .card-body .card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--accent);
            transition: var(--transition);
        }

        .news-card .card-body .card-link i {
            font-size: 12px;
            transition: var(--transition);
        }

        .news-card .card-body .card-link:hover {
            color: var(--accent-hover);
        }

        .news-card .card-body .card-link:hover i {
            transform: translateX(4px);
        }

        /* ===== 热门标签 ===== */
        .tags-cloud {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 14px;
            max-width: 800px;
            margin: 0 auto;
        }

        .tags-cloud .tag-item {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 24px;
            border-radius: 50px;
            background: var(--bg-white);
            border: 1px solid var(--border);
            font-size: 15px;
            font-weight: 500;
            color: var(--text-secondary);
            transition: var(--transition);
            box-shadow: var(--shadow-sm);
        }

        .tags-cloud .tag-item i {
            color: var(--accent);
            font-size: 14px;
        }

        .tags-cloud .tag-item:hover {
            background: var(--accent);
            color: var(--primary);
            border-color: var(--accent);
            box-shadow: var(--shadow-accent);
            transform: translateY(-2px);
        }

        .tags-cloud .tag-item:hover i {
            color: var(--primary);
        }

        .tags-cloud .tag-item.hot {
            background: rgba(212, 168, 67, 0.08);
            border-color: rgba(212, 168, 67, 0.25);
            color: var(--text-primary);
        }

        .tags-cloud .tag-item.hot i {
            color: var(--accent);
        }

        /* ===== 数据统计 ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
        }

        .stat-card {
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--radius);
            padding: 36px 24px;
            text-align: center;
            transition: var(--transition);
            backdrop-filter: blur(10px);
        }

        .stat-card:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: var(--accent);
            transform: translateY(-4px);
        }

        .stat-card .stat-icon {
            font-size: 36px;
            color: var(--accent);
            margin-bottom: 16px;
        }

        .stat-card .stat-number {
            font-size: 40px;
            font-weight: 900;
            color: var(--text-light);
            line-height: 1.2;
            margin-bottom: 6px;
        }

        .stat-card .stat-number span {
            color: var(--accent);
        }

        .stat-card .stat-label {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.6);
            font-weight: 400;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: grid;
            gap: 16px;
        }

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

        .faq-item:hover {
            border-color: rgba(212, 168, 67, 0.2);
            box-shadow: var(--shadow-sm);
        }

        .faq-item .faq-question {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 20px 24px;
            font-size: 17px;
            font-weight: 600;
            color: var(--text-primary);
            cursor: pointer;
            background: none;
            width: 100%;
            text-align: left;
            transition: var(--transition);
        }

        .faq-item .faq-question i {
            color: var(--accent);
            font-size: 16px;
            width: 28px;
            flex-shrink: 0;
        }

        .faq-item .faq-question .arrow {
            margin-left: auto;
            color: var(--text-muted);
            transition: var(--transition);
            font-size: 14px;
        }

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

        .faq-item .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 24px;
        }

        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 24px 22px;
        }

        .faq-item .faq-answer p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            border-top: 1px solid var(--border-light);
            padding-top: 16px;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
            border-radius: var(--radius);
            padding: 64px 48px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
            opacity: 0.08;
            pointer-events: none;
        }

        .cta-section .cta-content {
            position: relative;
            z-index: 1;
        }

        .cta-section h2 {
            font-size: clamp(26px, 3vw, 38px);
            font-weight: 800;
            color: var(--text-light);
            margin-bottom: 14px;
        }

        .cta-section p {
            font-size: 17px;
            color: rgba(255, 255, 255, 0.7);
            max-width: 560px;
            margin: 0 auto 32px;
            line-height: 1.7;
        }

        .cta-section .btn {
            font-size: 17px;
            padding: 16px 44px;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, 0.7);
            padding: 60px 0 30px;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
        }

        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }

        .site-footer .footer-brand .logo {
            margin-bottom: 16px;
        }

        .site-footer .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.55);
            max-width: 340px;
        }

        .site-footer .footer-col h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-light);
            margin-bottom: 18px;
            letter-spacing: 0.3px;
        }

        .site-footer .footer-col a {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.55);
            padding: 6px 0;
            transition: var(--transition);
        }

        .site-footer .footer-col a i {
            font-size: 10px;
            color: var(--accent);
            transition: var(--transition);
        }

        .site-footer .footer-col a:hover {
            color: var(--accent);
            padding-left: 4px;
        }

        .site-footer .footer-col a:hover i {
            transform: translateX(3px);
        }

        .site-footer .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-top: 28px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
            flex-wrap: wrap;
            gap: 16px;
        }

        .site-footer .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
        }

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

        .site-footer .social-links {
            display: flex;
            gap: 12px;
        }

        .site-footer .social-links a {
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 10px;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.06);
            font-size: 18px;
            color: rgba(255, 255, 255, 0.5);
            transition: var(--transition);
        }

        .site-footer .social-links a:hover {
            background: var(--accent);
            color: var(--primary);
            border-color: var(--accent);
            transform: translateY(-2px);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .news-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .site-footer .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }

            .intro-grid {
                gap: 32px;
            }
        }

        @media (max-width: 768px) {
            .nav-panel {
                display: none;
            }

            .nav-toggle {
                display: flex;
            }

            .mobile-menu {
                display: block;
            }

            .category-hero {
                min-height: 380px;
            }

            .category-hero .hero-content {
                padding: 60px 0 50px;
            }

            .category-hero h1 {
                font-size: 32px;
            }

            .category-hero p {
                font-size: 16px;
            }

            .section {
                padding: 56px 0;
            }

            .section-header {
                margin-bottom: 36px;
            }

            .intro-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }

            .intro-image img {
                height: 260px;
            }

            .news-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }

            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }

            .stat-card {
                padding: 24px 16px;
            }

            .stat-card .stat-number {
                font-size: 30px;
            }

            .tags-cloud {
                gap: 10px;
            }

            .tags-cloud .tag-item {
                font-size: 13px;
                padding: 8px 18px;
            }

            .cta-section {
                padding: 40px 24px;
            }

            .site-footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }

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

            .faq-item .faq-question {
                font-size: 15px;
                padding: 16px 18px;
            }

            .hero-actions {
                flex-direction: column;
                align-items: flex-start;
            }

            .hero-actions .btn {
                width: 100%;
                justify-content: center;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }

            .category-hero h1 {
                font-size: 26px;
            }

            .category-hero p {
                font-size: 14px;
            }

            .section-header h2 {
                font-size: 24px;
            }

            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }

            .stat-card .stat-number {
                font-size: 26px;
            }

            .stat-card .stat-icon {
                font-size: 28px;
                margin-bottom: 10px;
            }

            .news-card .card-body {
                padding: 18px 16px;
            }

            .news-card .card-body h3 {
                font-size: 16px;
            }

            .cta-section h2 {
                font-size: 22px;
            }

            .cta-section p {
                font-size: 15px;
            }

            .btn {
                padding: 12px 24px;
                font-size: 14px;
            }

            .logo {
                font-size: 18px;
            }

            .logo i {
                width: 36px;
                height: 36px;
                font-size: 20px;
            }

            .intro-text h3 {
                font-size: 22px;
            }
        }

        /* ===== 辅助类 ===== */
        .text-accent {
            color: var(--accent);
        }

        .mt-1 {
            margin-top: 8px;
        }
        .mt-2 {
            margin-top: 16px;
        }
        .mt-3 {
            margin-top: 24px;
        }
        .mt-4 {
            margin-top: 32px;
        }
        .mb-2 {
            margin-bottom: 16px;
        }
        .mb-3 {
            margin-bottom: 24px;
        }
        .text-center {
            text-align: center;
        }
        .flex-center {
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .gap-2 {
            gap: 12px;
        }
        .gap-3 {
            gap: 20px;
        }