/* roulang page: index */
/* ===== 设计变量 ===== */
        :root {
            --primary: #FF5E3A;
            --primary-light: #FF7B5A;
            --primary-dark: #D94420;
            --accent: #FFD166;
            --accent-light: #FFE49A;
            --bg-dark: #0B0B1A;
            --bg-card: #141428;
            --bg-card-hover: #1C1C3A;
            --bg-elevated: #1A1A32;
            --text-white: #F5F5FA;
            --text-light: #C8C8D8;
            --text-muted: #8888A0;
            --border-subtle: rgba(255, 255, 255, 0.06);
            --border-card: rgba(255, 255, 255, 0.08);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.45);
            --shadow-hover: 0 16px 48px rgba(0, 0, 0, 0.6);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
            --container-max: 1200px;
            --header-height: 72px;
        }

        /* ===== 基础 Reset ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
        body {
            font-family: var(--font-sans);
            background: var(--bg-dark);
            color: var(--text-white);
            line-height: 1.6;
            font-size: 16px;
        }
        img { max-width: 100%; height: auto; display: block; }
        a { color: inherit; text-decoration: none; transition: color var(--transition); }
        button, input, textarea { font-family: inherit; font-size: inherit; border: none; outline: none; }
        button { cursor: pointer; background: none; }
        ul, ol { list-style: none; }
        h1, h2, h3, h4, h5, h6 { font-weight: 700; line-height: 1.25; letter-spacing: -0.01em; }

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

        /* ===== 头部导航 ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--header-height);
            background: rgba(11, 11, 26, 0.85);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-subtle);
            transition: background var(--transition);
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .header-left {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .logo-icon {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: #fff;
            flex-shrink: 0;
        }
        .logo-text {
            font-size: 22px;
            font-weight: 800;
            background: linear-gradient(135deg, var(--text-white), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            letter-spacing: -0.02em;
        }
        .header-nav {
            display: flex;
            align-items: center;
            gap: 32px;
        }
        .header-nav a {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-light);
            padding: 6px 0;
            position: relative;
            transition: color var(--transition);
        }
        .header-nav a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
            transition: width var(--transition);
        }
        .header-nav a:hover { color: var(--text-white); }
        .header-nav a:hover::after { width: 100%; }
        .header-nav a.active { color: var(--text-white); }
        .header-nav a.active::after { width: 100%; background: var(--accent); }

        .header-right {
            display: flex;
            align-items: center;
            gap: 14px;
            flex-shrink: 0;
        }
        .search-wrap {
            display: flex;
            align-items: center;
            background: rgba(255,255,255,0.06);
            border: 1px solid var(--border-subtle);
            border-radius: 40px;
            padding: 0 14px 0 18px;
            height: 40px;
            transition: border-color var(--transition), background var(--transition);
        }
        .search-wrap:focus-within {
            border-color: var(--primary);
            background: rgba(255,255,255,0.10);
        }
        .search-wrap i { color: var(--text-muted); font-size: 15px; }
        .search-wrap input {
            background: transparent;
            border: none;
            color: var(--text-white);
            padding: 0 8px;
            width: 140px;
            height: 100%;
            font-size: 14px;
        }
        .search-wrap input::placeholder { color: var(--text-muted); }
        .search-wrap input:focus { outline: none; }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            padding: 10px 24px;
            border-radius: 40px;
            font-weight: 600;
            font-size: 14px;
            transition: transform var(--transition), box-shadow var(--transition);
            box-shadow: 0 4px 16px rgba(255, 94, 58, 0.3);
            border: none;
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(255, 94, 58, 0.45);
        }
        .btn-primary i { font-size: 14px; }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            color: var(--text-light);
            padding: 8px 18px;
            border-radius: 40px;
            font-weight: 500;
            font-size: 14px;
            border: 1px solid var(--border-card);
            transition: background var(--transition), color var(--transition), border-color var(--transition);
        }
        .btn-outline:hover {
            background: rgba(255,255,255,0.06);
            color: var(--text-white);
            border-color: var(--text-muted);
        }

        /* 汉堡菜单 */
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 6px;
            background: none;
            border: none;
            cursor: pointer;
        }
        .hamburger span {
            display: block;
            width: 26px;
            height: 2.5px;
            background: var(--text-white);
            border-radius: 4px;
            transition: var(--transition);
        }
        .hamburger.active span:nth-child(1) { transform: translateY(7.5px) rotate(45deg); }
        .hamburger.active span:nth-child(2) { opacity: 0; }
        .hamburger.active span:nth-child(3) { transform: translateY(-7.5px) rotate(-45deg); }

        @media (max-width: 920px) {
            .header-nav {
                position: fixed;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: rgba(11, 11, 26, 0.97);
                backdrop-filter: blur(20px);
                flex-direction: column;
                padding: 24px 32px;
                gap: 18px;
                transform: translateY(-120%);
                opacity: 0;
                transition: transform 0.4s ease, opacity 0.4s ease;
                border-bottom: 1px solid var(--border-subtle);
                pointer-events: none;
            }
            .header-nav.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }
            .header-nav a { font-size: 17px; padding: 8px 0; }
            .hamburger { display: flex; }
            .search-wrap input { width: 100px; }
            .header-right .btn-outline { display: none; }
        }
        @media (max-width: 520px) {
            .search-wrap { display: none; }
            .header-right .btn-primary { padding: 8px 16px; font-size: 13px; }
            .logo-text { font-size: 18px; }
            .logo-icon { width: 30px; height: 30px; font-size: 16px; }
        }

        /* ===== Hero 首屏 ===== */
        .hero {
            position: relative;
            min-height: 100vh;
            display: flex;
            align-items: center;
            padding-top: var(--header-height);
            overflow: hidden;
        }
        .hero-bg {
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            filter: brightness(0.35) saturate(0.8);
            transform: scale(1.05);
            transition: transform 0.6s ease;
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(11,11,26,0.4) 0%, rgba(11,11,26,0.85) 80%, var(--bg-dark) 100%);
        }
        .hero .container {
            position: relative;
            z-index: 2;
            text-align: center;
            padding-top: 60px;
            padding-bottom: 80px;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 94, 58, 0.18);
            border: 1px solid rgba(255, 94, 58, 0.25);
            padding: 6px 18px;
            border-radius: 40px;
            font-size: 13px;
            font-weight: 500;
            color: var(--accent);
            letter-spacing: 0.3px;
            margin-bottom: 28px;
            backdrop-filter: blur(4px);
        }
        .hero-badge i { font-size: 14px; }
        .hero h1 {
            font-size: clamp(2.8rem, 8vw, 5.2rem);
            font-weight: 900;
            line-height: 1.08;
            letter-spacing: -0.03em;
            margin-bottom: 20px;
            background: linear-gradient(135deg, #fff 40%, var(--accent) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero-sub {
            font-size: clamp(1.1rem, 2.5vw, 1.5rem);
            color: var(--text-light);
            max-width: 680px;
            margin: 0 auto 36px;
            font-weight: 400;
            line-height: 1.6;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            justify-content: center;
        }
        .hero-actions .btn-primary {
            padding: 16px 40px;
            font-size: 16px;
            font-weight: 700;
        }
        .hero-actions .btn-primary i { font-size: 16px; }
        .hero-actions .btn-outline {
            padding: 16px 36px;
            font-size: 16px;
            border-radius: 40px;
            border-color: rgba(255,255,255,0.15);
            color: var(--text-light);
        }
        .hero-actions .btn-outline:hover {
            border-color: var(--text-white);
            color: var(--text-white);
            background: rgba(255,255,255,0.05);
        }
        .hero-stats {
            display: flex;
            justify-content: center;
            gap: 40px 60px;
            margin-top: 56px;
            flex-wrap: wrap;
        }
        .hero-stat { text-align: center; }
        .hero-stat .num {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--text-white);
            letter-spacing: -0.02em;
        }
        .hero-stat .num span { color: var(--primary); }
        .hero-stat .label {
            font-size: 14px;
            color: var(--text-muted);
            margin-top: 4px;
        }

        @media (max-width: 768px) {
            .hero { min-height: 92vh; }
            .hero .container { padding-top: 40px; padding-bottom: 60px; }
            .hero-stats { gap: 24px 40px; }
            .hero-stat .num { font-size: 1.8rem; }
        }
        @media (max-width: 520px) {
            .hero h1 { font-size: 2.2rem; }
            .hero-sub { font-size: 1rem; }
            .hero-actions .btn-primary { padding: 14px 28px; font-size: 15px; }
            .hero-actions .btn-outline { padding: 14px 24px; font-size: 15px; }
            .hero-stats { gap: 16px 28px; }
        }

        /* ===== 通用板块标题 ===== */
        .section-title {
            font-size: clamp(1.8rem, 4vw, 2.6rem);
            font-weight: 800;
            margin-bottom: 8px;
            letter-spacing: -0.02em;
        }
        .section-sub {
            font-size: 16px;
            color: var(--text-muted);
            max-width: 580px;
            line-height: 1.6;
        }
        .section-header {
            display: flex;
            flex-wrap: wrap;
            align-items: flex-end;
            justify-content: space-between;
            margin-bottom: 44px;
            gap: 16px;
        }
        .section-header .section-sub { margin-bottom: 0; }

        /* ===== 板块间距 ===== */
        .section { padding: 80px 0; }
        .section-dark { background: var(--bg-card); }
        .section-divider { border-top: 1px solid var(--border-subtle); }

        @media (max-width: 768px) { .section { padding: 56px 0; } }

        /* ===== 特色卡片 ===== */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .feature-card {
            background: var(--bg-card);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-md);
            padding: 36px 28px 32px;
            transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
        }
        .feature-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-card);
            border-color: rgba(255, 94, 58, 0.2);
        }
        .feature-icon {
            width: 56px;
            height: 56px;
            border-radius: 16px;
            background: linear-gradient(135deg, rgba(255,94,58,0.15), rgba(255,209,102,0.10));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 26px;
            color: var(--primary);
            margin-bottom: 20px;
        }
        .feature-card h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 10px;
        }
        .feature-card p {
            color: var(--text-muted);
            font-size: 15px;
            line-height: 1.7;
        }
        @media (max-width: 920px) { .features-grid { grid-template-columns: repeat(2, 1fr); } }
        @media (max-width: 560px) { .features-grid { grid-template-columns: 1fr; } }

        /* ===== 分类入口 ===== */
        .category-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 28px;
        }
        .category-card {
            position: relative;
            border-radius: var(--radius-md);
            overflow: hidden;
            background: var(--bg-card);
            border: 1px solid var(--border-card);
            transition: transform var(--transition), box-shadow var(--transition);
            aspect-ratio: 16 / 9;
            display: flex;
            align-items: flex-end;
        }
        .category-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card);
        }
        .category-card img {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            filter: brightness(0.55);
            transition: filter var(--transition), transform 0.5s ease;
        }
        .category-card:hover img {
            filter: brightness(0.4);
            transform: scale(1.05);
        }
        .category-card .overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(0deg, rgba(11,11,26,0.85) 0%, transparent 60%);
        }
        .category-card .content {
            position: relative;
            z-index: 2;
            padding: 28px 26px 24px;
            width: 100%;
        }
        .category-card .content h3 {
            font-size: 22px;
            font-weight: 700;
            margin-bottom: 6px;
        }
        .category-card .content p {
            font-size: 14px;
            color: var(--text-light);
            opacity: 0.85;
        }
        .category-card .content .tag {
            display: inline-block;
            background: rgba(255,94,58,0.2);
            border: 1px solid rgba(255,94,58,0.2);
            padding: 2px 14px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 600;
            color: var(--accent);
            margin-bottom: 10px;
        }
        @media (max-width: 600px) { .category-grid { grid-template-columns: 1fr; } }

        /* ===== 最新资讯列表（CMS 区域） ===== */
        .news-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }
        .news-item {
            background: var(--bg-card);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-md);
            padding: 24px 26px;
            transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
        }
        .news-item:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card);
            border-color: rgba(255, 94, 58, 0.15);
        }
        .news-item .meta {
            display: flex;
            align-items: center;
            gap: 14px;
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 10px;
        }
        .news-item .meta .badge-cat {
            background: rgba(255,209,102,0.12);
            color: var(--accent);
            padding: 2px 14px;
            border-radius: 20px;
            font-weight: 600;
            font-size: 12px;
        }
        .news-item .meta .date { font-size: 13px; }
        .news-item h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 8px;
            line-height: 1.35;
        }
        .news-item h3 a { color: var(--text-white); transition: color var(--transition); }
        .news-item h3 a:hover { color: var(--primary-light); }
        .news-item p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.65;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-empty {
            grid-column: 1 / -1;
            text-align: center;
            padding: 48px 20px;
            color: var(--text-muted);
            font-size: 16px;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px dashed var(--border-card);
        }
        .news-empty i { font-size: 36px; margin-bottom: 16px; display: block; color: var(--text-muted); opacity: 0.4; }

        @media (max-width: 768px) { .news-list { grid-template-columns: 1fr; } }

        /* ===== 精选内容卡片 ===== */
        .featured-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .featured-card {
            background: var(--bg-card);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: transform var(--transition), box-shadow var(--transition);
        }
        .featured-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-card);
        }
        .featured-card .thumb {
            position: relative;
            aspect-ratio: 16 / 10;
            overflow: hidden;
        }
        .featured-card .thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .featured-card:hover .thumb img { transform: scale(1.05); }
        .featured-card .thumb .play-overlay {
            position: absolute;
            inset: 0;
            background: rgba(11,11,26,0.3);
            display: flex;
            align-items: center;
            justify-content: center;
            opacity: 0;
            transition: opacity var(--transition);
        }
        .featured-card:hover .thumb .play-overlay { opacity: 1; }
        .featured-card .thumb .play-overlay i {
            font-size: 48px;
            color: rgba(255,255,255,0.85);
            filter: drop-shadow(0 4px 16px rgba(0,0,0,0.5));
        }
        .featured-card .info {
            padding: 20px 22px 24px;
        }
        .featured-card .info .tag {
            display: inline-block;
            background: rgba(255,94,58,0.12);
            color: var(--primary-light);
            padding: 2px 14px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 600;
            margin-bottom: 10px;
        }
        .featured-card .info h3 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 6px;
            line-height: 1.3;
        }
        .featured-card .info p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.6;
        }
        @media (max-width: 920px) { .featured-grid { grid-template-columns: repeat(2, 1fr); } }
        @media (max-width: 560px) { .featured-grid { grid-template-columns: 1fr; } }

        /* ===== 数据/流程 ===== */
        .process-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .process-step {
            text-align: center;
            padding: 32px 18px;
            background: var(--bg-card);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-md);
            transition: transform var(--transition), box-shadow var(--transition);
        }
        .process-step:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card);
        }
        .process-step .step-num {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            font-weight: 800;
            color: #fff;
            margin: 0 auto 16px;
        }
        .process-step h4 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .process-step p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.6;
        }
        @media (max-width: 920px) { .process-grid { grid-template-columns: repeat(2, 1fr); } }
        @media (max-width: 480px) { .process-grid { grid-template-columns: 1fr; } }

        /* ===== FAQ ===== */
        .faq-grid {
            max-width: 780px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-sm);
            overflow: hidden;
            transition: border-color var(--transition);
        }
        .faq-item.active { border-color: rgba(255,94,58,0.25); }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 24px;
            font-size: 16px;
            font-weight: 600;
            cursor: pointer;
            background: none;
            border: none;
            color: var(--text-white);
            width: 100%;
            text-align: left;
            gap: 16px;
            transition: background var(--transition);
        }
        .faq-question:hover { background: rgba(255,255,255,0.02); }
        .faq-question i {
            font-size: 18px;
            color: var(--text-muted);
            transition: transform var(--transition);
            flex-shrink: 0;
        }
        .faq-item.active .faq-question i { transform: rotate(180deg); color: var(--primary); }
        .faq-answer {
            padding: 0 24px 0;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
        }
        .faq-item.active .faq-answer {
            max-height: 260px;
            padding: 0 24px 22px;
        }
        .faq-answer p {
            font-size: 15px;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* ===== CTA ===== */
        .cta-block {
            background: linear-gradient(135deg, rgba(255,94,58,0.08), rgba(255,209,102,0.05));
            border: 1px solid rgba(255,94,58,0.12);
            border-radius: var(--radius-lg);
            padding: 56px 48px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-block::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -30%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(255,94,58,0.08) 0%, transparent 70%);
            pointer-events: none;
        }
        .cta-block h2 {
            font-size: clamp(1.6rem, 3.5vw, 2.4rem);
            font-weight: 800;
            margin-bottom: 12px;
        }
        .cta-block p {
            font-size: 16px;
            color: var(--text-muted);
            max-width: 550px;
            margin: 0 auto 28px;
        }
        .cta-block .btn-primary {
            padding: 16px 44px;
            font-size: 16px;
            font-weight: 700;
        }
        @media (max-width: 600px) {
            .cta-block { padding: 36px 24px; }
        }

        /* ===== 页脚 ===== */
        .site-footer {
            border-top: 1px solid var(--border-subtle);
            padding: 48px 0 32px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 36px;
            margin-bottom: 36px;
        }
        .footer-brand .logo-text { font-size: 20px; }
        .footer-brand p {
            font-size: 14px;
            color: var(--text-muted);
            margin-top: 12px;
            line-height: 1.7;
            max-width: 280px;
        }
        .footer-col h4 {
            font-size: 15px;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--text-white);
        }
        .footer-col ul li { margin-bottom: 10px; }
        .footer-col ul li a {
            font-size: 14px;
            color: var(--text-muted);
            transition: color var(--transition);
        }
        .footer-col ul li a:hover { color: var(--text-light); }
        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            padding-top: 24px;
            border-top: 1px solid var(--border-subtle);
            font-size: 13px;
            color: var(--text-muted);
            gap: 12px;
        }
        .footer-bottom a { color: var(--text-muted); }
        .footer-bottom a:hover { color: var(--text-light); }
        .footer-socials {
            display: flex;
            gap: 14px;
        }
        .footer-socials a {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(255,255,255,0.04);
            border: 1px solid var(--border-subtle);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-muted);
            font-size: 16px;
            transition: background var(--transition), color var(--transition), border-color var(--transition);
        }
        .footer-socials a:hover {
            background: rgba(255,94,58,0.12);
            color: var(--primary-light);
            border-color: rgba(255,94,58,0.2);
        }

        @media (max-width: 820px) {
            .footer-grid { grid-template-columns: repeat(2, 1fr); gap: 28px; }
        }
        @media (max-width: 520px) {
            .footer-grid { grid-template-columns: 1fr; gap: 24px; }
            .footer-bottom { flex-direction: column; text-align: center; }
        }

        /* ===== 工具类 ===== */
        .text-center { text-align: center; }
        .mt-16 { margin-top: 16px; }
        .mt-24 { margin-top: 24px; }
        .mt-32 { margin-top: 32px; }
        .mb-16 { margin-bottom: 16px; }
        .mb-24 { margin-bottom: 24px; }

        /* ===== 响应式微调 ===== */
        @media (max-width: 480px) {
            .section-title { font-size: 1.6rem; }
            .section-sub { font-size: 14px; }
            .hero-actions { flex-direction: column; align-items: center; }
            .hero-actions .btn-primary,
            .hero-actions .btn-outline { width: 100%; max-width: 280px; justify-content: center; }
        }

/* roulang page: article */
/* ===== Design Variables ===== */
    :root {
        --primary: #e85d3a;
        --primary-dark: #d04a2a;
        --primary-light: #fce8e2;
        --primary-gradient: linear-gradient(135deg, #e85d3a 0%, #f08e6b 100%);
        --secondary: #2b2d42;
        --secondary-light: #41446a;
        --accent: #f7c948;
        --bg-dark: #0f0f14;
        --bg-darker: #0a0a0e;
        --bg-card: #1a1a24;
        --bg-elevated: #22222e;
        --bg-body: #f5f3f0;
        --bg-white: #ffffff;
        --text-primary: #1c1c1e;
        --text-secondary: #555560;
        --text-light: #8a8a96;
        --text-white: #f0ece8;
        --border-light: rgba(255, 255, 255, 0.08);
        --border-card: rgba(255, 255, 255, 0.06);
        --radius-sm: 8px;
        --radius-md: 14px;
        --radius-lg: 20px;
        --radius-xl: 28px;
        --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
        --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.4);
        --shadow-lg: 0 20px 60px 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;
        --font-serif: 'Georgia', 'Noto Serif SC', serif;
        --container: 1200px;
        --nav-height: 72px;
    }

    /* ===== 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-sans);
        background: var(--bg-body);
        color: var(--text-primary);
        line-height: 1.7;
        font-size: 16px;
    }
    img {
        max-width: 100%;
        height: auto;
        display: block;
    }
    a {
        color: inherit;
        text-decoration: none;
        transition: var(--transition);
    }
    button,
    input,
    textarea {
        font-family: inherit;
        font-size: inherit;
        border: none;
        outline: none;
        background: none;
    }
    ul,
    ol {
        list-style: none;
    }
    .container {
        max-width: var(--container);
        margin: 0 auto;
        padding: 0 24px;
    }
    .container-narrow {
        max-width: 800px;
        margin: 0 auto;
        padding: 0 24px;
    }
    .section {
        padding: 80px 0;
    }
    .section-title {
        font-size: 2rem;
        font-weight: 700;
        margin-bottom: 12px;
        letter-spacing: -0.01em;
        color: var(--text-primary);
    }
    .section-sub {
        font-size: 1.05rem;
        color: var(--text-secondary);
        max-width: 600px;
        line-height: 1.6;
    }
    .section-header {
        text-align: center;
        margin-bottom: 48px;
    }
    .section-header .section-sub {
        margin: 0 auto;
    }

    /* ===== Header & Navigation ===== */
    .site-header {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        z-index: 1000;
        background: rgba(15, 15, 20, 0.88);
        backdrop-filter: blur(20px) saturate(1.2);
        -webkit-backdrop-filter: blur(20px) saturate(1.2);
        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: 1.35rem;
        font-weight: 700;
        color: var(--text-white);
        letter-spacing: -0.02em;
    }
    .logo i {
        font-size: 1.5rem;
        color: var(--primary);
        background: var(--primary-gradient);
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
        background-clip: text;
    }
    .logo span {
        background: var(--primary-gradient);
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
        background-clip: text;
    }
    .header-nav {
        display: flex;
        align-items: center;
        gap: 32px;
    }
    .header-nav a {
        color: rgba(255, 255, 255, 0.7);
        font-size: 0.95rem;
        font-weight: 500;
        padding: 6px 0;
        position: relative;
        transition: var(--transition);
        letter-spacing: 0.01em;
    }
    .header-nav a::after {
        content: '';
        position: absolute;
        bottom: 0;
        left: 0;
        width: 0;
        height: 2px;
        background: var(--primary-gradient);
        border-radius: 2px;
        transition: var(--transition);
    }
    .header-nav a:hover {
        color: var(--text-white);
    }
    .header-nav a:hover::after {
        width: 100%;
    }
    .header-nav a.active {
        color: var(--text-white);
    }
    .header-nav a.active::after {
        width: 100%;
    }
    .header-actions {
        display: flex;
        align-items: center;
        gap: 16px;
    }
    .search-toggle {
        color: rgba(255, 255, 255, 0.6);
        font-size: 1.1rem;
        padding: 8px 10px;
        border-radius: var(--radius-sm);
        cursor: pointer;
        transition: var(--transition);
    }
    .search-toggle:hover {
        color: var(--text-white);
        background: rgba(255, 255, 255, 0.06);
    }
    .btn-header {
        background: var(--primary-gradient);
        color: #fff;
        padding: 10px 24px;
        border-radius: 50px;
        font-weight: 600;
        font-size: 0.9rem;
        cursor: pointer;
        transition: var(--transition);
        box-shadow: 0 4px 16px rgba(232, 93, 58, 0.3);
        border: none;
    }
    .btn-header:hover {
        transform: translateY(-2px);
        box-shadow: 0 8px 28px rgba(232, 93, 58, 0.4);
    }
    .btn-header i {
        margin-right: 6px;
    }
    .mobile-toggle {
        display: none;
        color: var(--text-white);
        font-size: 1.4rem;
        cursor: pointer;
        padding: 6px;
        border-radius: var(--radius-sm);
        transition: var(--transition);
    }
    .mobile-toggle:hover {
        background: rgba(255, 255, 255, 0.06);
    }

    /* ===== Article Hero ===== */
    .article-hero {
        padding-top: calc(var(--nav-height) + 40px);
        padding-bottom: 60px;
        background: var(--bg-dark);
        position: relative;
        overflow: hidden;
        min-height: 340px;
        display: flex;
        align-items: center;
    }
    .article-hero::before {
        content: '';
        position: absolute;
        inset: 0;
        background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
        opacity: 0.25;
        z-index: 0;
    }
    .article-hero::after {
        content: '';
        position: absolute;
        inset: 0;
        background: linear-gradient(180deg, rgba(15, 15, 20, 0.7) 0%, rgba(15, 15, 20, 0.95) 100%);
        z-index: 1;
    }
    .article-hero .container {
        position: relative;
        z-index: 2;
        text-align: center;
    }
    .article-hero .hero-badge {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        background: rgba(232, 93, 58, 0.2);
        color: var(--primary);
        padding: 6px 16px;
        border-radius: 50px;
        font-size: 0.85rem;
        font-weight: 600;
        margin-bottom: 20px;
        border: 1px solid rgba(232, 93, 58, 0.15);
    }
    .article-hero h1 {
        font-size: 2.8rem;
        font-weight: 800;
        color: var(--text-white);
        line-height: 1.25;
        max-width: 800px;
        margin: 0 auto 16px;
        letter-spacing: -0.02em;
    }
    .article-hero .hero-meta {
        display: flex;
        align-items: center;
        justify-content: center;
        gap: 20px;
        flex-wrap: wrap;
        color: rgba(255, 255, 255, 0.6);
        font-size: 0.95rem;
    }
    .article-hero .hero-meta span {
        display: flex;
        align-items: center;
        gap: 6px;
    }
    .article-hero .hero-meta i {
        font-size: 0.85rem;
        color: var(--primary);
    }
    .article-hero .hero-desc {
        color: rgba(255, 255, 255, 0.7);
        font-size: 1.1rem;
        max-width: 640px;
        margin: 20px auto 0;
        line-height: 1.6;
    }

    /* ===== Article Content ===== */
    .article-main {
        padding: 60px 0 80px;
        background: var(--bg-body);
    }
    .article-body {
        background: var(--bg-white);
        border-radius: var(--radius-lg);
        padding: 48px 56px;
        box-shadow: 0 4px 24px rgba(0, 0, 0, 0.04);
        border: 1px solid rgba(0, 0, 0, 0.04);
    }
    .article-body .content {
        font-size: 1.05rem;
        line-height: 1.85;
        color: var(--text-primary);
    }
    .article-body .content h2 {
        font-size: 1.6rem;
        font-weight: 700;
        margin-top: 40px;
        margin-bottom: 16px;
        color: var(--text-primary);
        letter-spacing: -0.01em;
    }
    .article-body .content h3 {
        font-size: 1.25rem;
        font-weight: 600;
        margin-top: 32px;
        margin-bottom: 12px;
        color: var(--text-primary);
    }
    .article-body .content p {
        margin-bottom: 18px;
        color: var(--text-secondary);
    }
    .article-body .content p:last-child {
        margin-bottom: 0;
    }
    .article-body .content img {
        border-radius: var(--radius-md);
        margin: 28px auto;
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
    }
    .article-body .content blockquote {
        border-left: 4px solid var(--primary);
        padding: 16px 24px;
        margin: 28px 0;
        background: var(--primary-light);
        border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
        color: var(--text-secondary);
        font-style: italic;
    }
    .article-body .content ul,
    .article-body .content ol {
        margin: 18px 0;
        padding-left: 24px;
        color: var(--text-secondary);
    }
    .article-body .content ul li {
        list-style: disc;
        margin-bottom: 8px;
    }
    .article-body .content ol li {
        list-style: decimal;
        margin-bottom: 8px;
    }
    .article-body .content a {
        color: var(--primary);
        border-bottom: 1px solid rgba(232, 93, 58, 0.2);
    }
    .article-body .content a:hover {
        color: var(--primary-dark);
        border-bottom-color: var(--primary);
    }
    .article-body .content pre {
        background: var(--bg-dark);
        color: #e4e4e7;
        padding: 20px 24px;
        border-radius: var(--radius-md);
        overflow-x: auto;
        margin: 24px 0;
        font-size: 0.9rem;
        line-height: 1.6;
    }
    .article-body .content code {
        font-family: 'JetBrains Mono', monospace;
        font-size: 0.9em;
    }

    /* ===== Article Tags & Share ===== */
    .article-footer-bar {
        display: flex;
        align-items: center;
        justify-content: space-between;
        flex-wrap: wrap;
        gap: 20px;
        margin-top: 40px;
        padding-top: 28px;
        border-top: 1px solid rgba(0, 0, 0, 0.06);
    }
    .article-tags {
        display: flex;
        align-items: center;
        gap: 8px;
        flex-wrap: wrap;
    }
    .article-tags .tag {
        display: inline-block;
        padding: 4px 14px;
        border-radius: 50px;
        font-size: 0.82rem;
        font-weight: 500;
        background: var(--primary-light);
        color: var(--primary-dark);
        transition: var(--transition);
    }
    .article-tags .tag:hover {
        background: var(--primary);
        color: #fff;
    }
    .article-share {
        display: flex;
        align-items: center;
        gap: 10px;
    }
    .article-share span {
        font-size: 0.9rem;
        color: var(--text-light);
        font-weight: 500;
    }
    .article-share a {
        width: 38px;
        height: 38px;
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        background: var(--bg-body);
        color: var(--text-secondary);
        font-size: 0.95rem;
        transition: var(--transition);
        border: 1px solid rgba(0, 0, 0, 0.04);
    }
    .article-share a:hover {
        background: var(--primary);
        color: #fff;
        transform: translateY(-2px);
        box-shadow: 0 4px 14px rgba(232, 93, 58, 0.25);
    }

    /* ===== Post Navigation ===== */
    .post-nav {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 24px;
        margin-top: 48px;
    }
    .post-nav a {
        display: flex;
        flex-direction: column;
        gap: 4px;
        padding: 20px 24px;
        background: var(--bg-white);
        border-radius: var(--radius-md);
        border: 1px solid rgba(0, 0, 0, 0.04);
        transition: var(--transition);
        box-shadow: 0 2px 8px rgba(0, 0, 0, 0.02);
    }
    .post-nav a:hover {
        transform: translateY(-2px);
        box-shadow: 0 8px 24px rgba(0, 0, 0, 0.06);
        border-color: rgba(232, 93, 58, 0.15);
    }
    .post-nav .nav-label {
        font-size: 0.82rem;
        color: var(--text-light);
        font-weight: 500;
        display: flex;
        align-items: center;
        gap: 6px;
    }
    .post-nav .nav-title {
        font-size: 1rem;
        font-weight: 600;
        color: var(--text-primary);
        line-height: 1.4;
    }
    .post-nav a.next {
        text-align: right;
    }
    .post-nav a.next .nav-label {
        justify-content: flex-end;
    }

    /* ===== Related Posts ===== */
    .related-section {
        padding: 60px 0 80px;
        background: var(--bg-dark);
    }
    .related-section .section-title {
        color: var(--text-white);
    }
    .related-section .section-sub {
        color: rgba(255, 255, 255, 0.6);
    }
    .related-grid {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 24px;
        margin-top: 40px;
    }
    .related-card {
        background: var(--bg-card);
        border-radius: var(--radius-md);
        overflow: hidden;
        border: 1px solid var(--border-card);
        transition: var(--transition);
    }
    .related-card:hover {
        transform: translateY(-4px);
        border-color: rgba(232, 93, 58, 0.2);
        box-shadow: var(--shadow-md);
    }
    .related-card .card-img {
        width: 100%;
        aspect-ratio: 16 / 10;
        object-fit: cover;
        display: block;
        background: var(--bg-elevated);
    }
    .related-card .card-body {
        padding: 18px 20px 20px;
    }
    .related-card .card-cat {
        font-size: 0.75rem;
        font-weight: 600;
        color: var(--primary);
        text-transform: uppercase;
        letter-spacing: 0.05em;
        margin-bottom: 6px;
        display: block;
    }
    .related-card .card-title {
        font-size: 1rem;
        font-weight: 600;
        color: var(--text-white);
        line-height: 1.4;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
        transition: var(--transition);
    }
    .related-card:hover .card-title {
        color: var(--primary);
    }
    .related-card .card-meta {
        font-size: 0.82rem;
        color: rgba(255, 255, 255, 0.4);
        margin-top: 10px;
        display: flex;
        align-items: center;
        gap: 12px;
    }

    /* ===== CTA Section ===== */
    .cta-section {
        padding: 80px 0;
        background: var(--bg-white);
        text-align: center;
    }
    .cta-section .cta-box {
        background: var(--bg-dark);
        border-radius: var(--radius-xl);
        padding: 64px 48px;
        position: relative;
        overflow: hidden;
    }
    .cta-section .cta-box::before {
        content: '';
        position: absolute;
        inset: 0;
        background: url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
        opacity: 0.1;
        z-index: 0;
    }
    .cta-section .cta-box>* {
        position: relative;
        z-index: 1;
    }
    .cta-section .cta-box h2 {
        font-size: 2rem;
        font-weight: 700;
        color: var(--text-white);
        margin-bottom: 12px;
    }
    .cta-section .cta-box p {
        color: rgba(255, 255, 255, 0.65);
        font-size: 1.05rem;
        max-width: 520px;
        margin: 0 auto 28px;
        line-height: 1.6;
    }
    .cta-section .btn-cta {
        display: inline-flex;
        align-items: center;
        gap: 10px;
        background: var(--primary-gradient);
        color: #fff;
        padding: 14px 36px;
        border-radius: 50px;
        font-weight: 600;
        font-size: 1rem;
        cursor: pointer;
        transition: var(--transition);
        box-shadow: 0 6px 24px rgba(232, 93, 58, 0.35);
        border: none;
    }
    .cta-section .btn-cta:hover {
        transform: translateY(-3px);
        box-shadow: 0 12px 40px rgba(232, 93, 58, 0.45);
    }

    /* ===== Footer ===== */
    .site-footer {
        background: var(--bg-darker);
        color: rgba(255, 255, 255, 0.7);
        padding: 56px 0 0;
        border-top: 1px solid rgba(255, 255, 255, 0.04);
    }
    .footer-grid {
        display: grid;
        grid-template-columns: 2fr 1fr 1fr 1.2fr;
        gap: 40px;
        padding-bottom: 40px;
        border-bottom: 1px solid rgba(255, 255, 255, 0.04);
    }
    .footer-brand .logo-text {
        font-size: 1.3rem;
        font-weight: 700;
        background: var(--primary-gradient);
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
        background-clip: text;
        display: inline-block;
        margin-bottom: 12px;
    }
    .footer-brand p {
        font-size: 0.92rem;
        line-height: 1.7;
        color: rgba(255, 255, 255, 0.5);
        max-width: 360px;
    }
    .footer-col h4 {
        font-size: 0.95rem;
        font-weight: 600;
        color: var(--text-white);
        margin-bottom: 16px;
        letter-spacing: 0.02em;
    }
    .footer-col ul li {
        margin-bottom: 10px;
    }
    .footer-col ul li a {
        font-size: 0.9rem;
        color: rgba(255, 255, 255, 0.5);
        transition: var(--transition);
    }
    .footer-col ul li a:hover {
        color: var(--primary);
        padding-left: 4px;
    }
    .footer-socials {
        display: flex;
        gap: 12px;
        flex-wrap: wrap;
    }
    .footer-socials a {
        width: 40px;
        height: 40px;
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        background: rgba(255, 255, 255, 0.06);
        color: rgba(255, 255, 255, 0.5);
        font-size: 1.1rem;
        transition: var(--transition);
    }
    .footer-socials a:hover {
        background: var(--primary);
        color: #fff;
        transform: translateY(-2px);
    }
    .footer-bottom {
        display: flex;
        align-items: center;
        justify-content: space-between;
        flex-wrap: wrap;
        gap: 12px;
        padding: 20px 0;
        font-size: 0.85rem;
        color: rgba(255, 255, 255, 0.3);
    }

    /* ===== 404 / Not Found ===== */
    .not-found-box {
        text-align: center;
        padding: 80px 24px;
        max-width: 520px;
        margin: 0 auto;
    }
    .not-found-box .nf-icon {
        font-size: 4rem;
        color: var(--text-light);
        margin-bottom: 20px;
        display: block;
    }
    .not-found-box h2 {
        font-size: 1.8rem;
        font-weight: 700;
        margin-bottom: 12px;
        color: var(--text-primary);
    }
    .not-found-box p {
        font-size: 1.05rem;
        color: var(--text-secondary);
        margin-bottom: 28px;
        line-height: 1.6;
    }
    .not-found-box .btn-back {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        background: var(--primary-gradient);
        color: #fff;
        padding: 12px 28px;
        border-radius: 50px;
        font-weight: 600;
        font-size: 0.95rem;
        transition: var(--transition);
        box-shadow: 0 4px 16px rgba(232, 93, 58, 0.3);
    }
    .not-found-box .btn-back:hover {
        transform: translateY(-2px);
        box-shadow: 0 8px 28px rgba(232, 93, 58, 0.4);
    }

    /* ===== Mobile Nav ===== */
    @media (max-width: 1024px) {
        .related-grid {
            grid-template-columns: repeat(2, 1fr);
        }
        .footer-grid {
            grid-template-columns: 1fr 1fr;
            gap: 32px;
        }
        .article-body {
            padding: 32px 28px;
        }
        .article-hero h1 {
            font-size: 2.2rem;
        }
    }

    @media (max-width: 768px) {
        .header-nav {
            display: none;
            position: absolute;
            top: var(--nav-height);
            left: 0;
            width: 100%;
            background: rgba(15, 15, 20, 0.98);
            backdrop-filter: blur(20px);
            flex-direction: column;
            padding: 20px 28px;
            gap: 16px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }
        .header-nav.open {
            display: flex;
        }
        .header-nav a {
            font-size: 1.05rem;
            padding: 8px 0;
        }
        .mobile-toggle {
            display: block;
        }
        .header-actions .btn-header span {
            display: none;
        }
        .header-actions .btn-header i {
            margin-right: 0;
        }
        .header-actions .btn-header {
            padding: 10px 14px;
        }
        .article-hero {
            min-height: 260px;
            padding-top: calc(var(--nav-height) + 24px);
            padding-bottom: 40px;
        }
        .article-hero h1 {
            font-size: 1.8rem;
        }
        .article-hero .hero-desc {
            font-size: 1rem;
        }
        .article-body {
            padding: 24px 20px;
            border-radius: var(--radius-md);
        }
        .article-body .content {
            font-size: 1rem;
        }
        .article-body .content h2 {
            font-size: 1.35rem;
        }
        .article-footer-bar {
            flex-direction: column;
            align-items: flex-start;
        }
        .post-nav {
            grid-template-columns: 1fr;
        }
        .related-grid {
            grid-template-columns: 1fr 1fr;
            gap: 16px;
        }
        .footer-grid {
            grid-template-columns: 1fr;
            gap: 28px;
        }
        .footer-bottom {
            flex-direction: column;
            text-align: center;
        }
        .cta-section .cta-box {
            padding: 40px 24px;
        }
        .cta-section .cta-box h2 {
            font-size: 1.5rem;
        }
        .section {
            padding: 48px 0;
        }
        .section-title {
            font-size: 1.6rem;
        }
        .container {
            padding: 0 16px;
        }
    }

    @media (max-width: 520px) {
        .related-grid {
            grid-template-columns: 1fr;
        }
        .article-hero h1 {
            font-size: 1.5rem;
        }
        .article-hero .hero-meta {
            gap: 12px;
            font-size: 0.85rem;
        }
        .article-body {
            padding: 20px 16px;
        }
        .article-body .content h2 {
            font-size: 1.2rem;
        }
        .article-body .content h3 {
            font-size: 1.1rem;
        }
        .cta-section .cta-box h2 {
            font-size: 1.3rem;
        }
        .cta-section .cta-box p {
            font-size: 0.95rem;
        }
        .cta-section .btn-cta {
            padding: 12px 24px;
            font-size: 0.9rem;
        }
        .logo {
            font-size: 1.15rem;
        }
        .logo i {
            font-size: 1.25rem;
        }
    }

    /* ===== Misc ===== */
    .sr-only {
        position: absolute;
        width: 1px;
        height: 1px;
        padding: 0;
        margin: -1px;
        overflow: hidden;
        clip: rect(0, 0, 0, 0);
        border: 0;
    }
    .text-primary {
        color: var(--primary);
    }
    .mt-2 {
        margin-top: 8px;
    }
    .mt-4 {
        margin-top: 16px;
    }
    .mb-2 {
        margin-bottom: 8px;
    }
    .mb-4 {
        margin-bottom: 16px;
    }
    .gap-2 {
        gap: 8px;
    }
    .gap-4 {
        gap: 16px;
    }
    .flex {
        display: flex;
    }
    .flex-wrap {
        flex-wrap: wrap;
    }
    .items-center {
        align-items: center;
    }
    .justify-center {
        justify-content: center;
    }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --color-bg: #0b0b14;
            --color-bg-alt: #12121f;
            --color-card: #1a1a2e;
            --color-card-hover: #222240;
            --color-primary: #ff6b35;
            --color-primary-dark: #e55a2b;
            --color-secondary: #ffd700;
            --color-accent: #ff3366;
            --color-text: #e8e8f0;
            --color-text-soft: #9a9ab0;
            --color-text-muted: #6b6b85;
            --color-border: #2a2a44;
            --color-border-light: #35355a;
            --gradient-hero: linear-gradient(135deg, #0b0b14 0%, #1a1a2e 50%, #0b0b14 100%);
            --gradient-primary: linear-gradient(135deg, #ff6b35, #ffd700);
            --gradient-accent: linear-gradient(135deg, #ff3366, #ff6b35);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 24px;
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.45);
            --shadow-card-hover: 0 14px 48px rgba(0, 0, 0, 0.55);
            --shadow-btn: 0 4px 20px rgba(255, 107, 53, 0.35);
            --transition: 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --font-sans: 'Segoe UI', system-ui, -apple-system, BlinkMacSystemFont, 'Helvetica Neue', Arial, sans-serif;
            --container-max: 1240px;
            --header-height: 72px;
        }

        /* ===== 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-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--color-text);
            background: var(--color-bg);
            min-height: 100vh;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            background: none;
            color: inherit;
        }
        button {
            cursor: pointer;
        }
        ul,
        ol {
            list-style: none;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.25;
            font-weight: 700;
        }

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

        /* ===== 导航 ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--header-height);
            background: rgba(11, 11, 20, 0.85);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--color-border);
            transition: background var(--transition);
        }
        .site-header .container {
            height: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        .header-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.3px;
        }
        .header-logo i {
            font-size: 26px;
            background: var(--gradient-primary);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .header-logo span {
            background: var(--gradient-primary);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .header-nav {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .header-nav a {
            position: relative;
            padding: 8px 18px;
            font-size: 15px;
            font-weight: 500;
            color: var(--color-text-soft);
            border-radius: var(--radius-sm);
            transition: color var(--transition), background var(--transition);
        }
        .header-nav a:hover {
            color: #fff;
            background: rgba(255, 255, 255, 0.06);
        }
        .header-nav a.active {
            color: #fff;
            background: rgba(255, 107, 53, 0.15);
        }
        .header-nav a.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 18px;
            right: 18px;
            height: 2px;
            background: var(--gradient-primary);
            border-radius: 2px;
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .header-search {
            display: flex;
            align-items: center;
            background: rgba(255, 255, 255, 0.07);
            border: 1px solid var(--color-border);
            border-radius: 50px;
            padding: 0 16px;
            height: 40px;
            width: 200px;
            transition: border-color var(--transition), width var(--transition);
        }
        .header-search:focus-within {
            border-color: var(--color-primary);
            width: 240px;
        }
        .header-search i {
            color: var(--color-text-muted);
            font-size: 14px;
            margin-right: 10px;
        }
        .header-search input {
            flex: 1;
            background: transparent;
            border: none;
            color: #fff;
            font-size: 14px;
            height: 100%;
        }
        .header-search input::placeholder {
            color: var(--color-text-muted);
        }
        .header-search input:focus {
            outline: none;
        }
        .header-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 9px 22px;
            font-size: 14px;
            font-weight: 600;
            border-radius: 50px;
            background: var(--gradient-primary);
            color: #0b0b14 !important;
            box-shadow: var(--shadow-btn);
            transition: transform var(--transition), box-shadow var(--transition);
        }
        .header-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(255, 107, 53, 0.45);
        }
        .mobile-toggle {
            display: none;
            font-size: 24px;
            color: #fff;
            background: none;
            border: none;
            padding: 4px;
        }
        @media (max-width: 1024px) {
            .header-search {
                width: 140px;
            }
            .header-search:focus-within {
                width: 180px;
            }
            .header-nav a {
                padding: 6px 14px;
                font-size: 14px;
            }
        }
        @media (max-width: 768px) {
            .header-search {
                display: none;
            }
            .header-btn {
                display: none;
            }
            .mobile-toggle {
                display: block;
            }
            .header-nav {
                position: fixed;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: rgba(11, 11, 20, 0.98);
                backdrop-filter: blur(20px);
                flex-direction: column;
                padding: 16px 24px 24px;
                gap: 4px;
                transform: translateY(-110%);
                opacity: 0;
                pointer-events: none;
                transition: transform 0.4s ease, opacity 0.4s ease;
                border-bottom: 1px solid var(--color-border);
            }
            .header-nav.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }
            .header-nav a {
                padding: 12px 16px;
                font-size: 16px;
                width: 100%;
                border-radius: var(--radius-sm);
            }
            .header-nav a.active::after {
                display: none;
            }
            .header-nav a.active {
                background: rgba(255, 107, 53, 0.15);
            }
        }

        /* ===== Hero / Banner ===== */
        .category-hero {
            position: relative;
            min-height: 480px;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            padding: 120px 24px 80px;
            background: var(--gradient-hero);
            overflow: hidden;
        }
        .category-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.25;
            filter: saturate(0.6) brightness(0.5);
            z-index: 0;
        }
        .category-hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 50%, rgba(255, 107, 53, 0.12) 0%, transparent 60%),
                radial-gradient(ellipse at 70% 50%, rgba(255, 215, 0, 0.08) 0%, transparent 60%);
            z-index: 1;
        }
        .category-hero .hero-content {
            position: relative;
            z-index: 2;
            max-width: 780px;
        }
        .category-hero .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 18px;
            font-size: 13px;
            font-weight: 600;
            color: var(--color-secondary);
            background: rgba(255, 215, 0, 0.12);
            border: 1px solid rgba(255, 215, 0, 0.2);
            border-radius: 50px;
            letter-spacing: 0.5px;
            margin-bottom: 20px;
        }
        .category-hero h1 {
            font-size: 56px;
            font-weight: 900;
            line-height: 1.1;
            color: #fff;
            margin-bottom: 20px;
            letter-spacing: -1px;
        }
        .category-hero h1 .highlight {
            background: var(--gradient-primary);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .category-hero p {
            font-size: 20px;
            color: var(--color-text-soft);
            max-width: 620px;
            margin: 0 auto 32px;
            line-height: 1.6;
        }
        .category-hero .hero-actions {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        .category-hero .hero-actions .btn-primary {
            padding: 14px 36px;
            font-size: 16px;
            font-weight: 700;
            border-radius: 50px;
            background: var(--gradient-primary);
            color: #0b0b14;
            box-shadow: var(--shadow-btn);
            transition: transform var(--transition), box-shadow var(--transition);
        }
        .category-hero .hero-actions .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 32px rgba(255, 107, 53, 0.5);
        }
        .category-hero .hero-actions .btn-outline {
            padding: 14px 36px;
            font-size: 16px;
            font-weight: 600;
            border-radius: 50px;
            border: 1px solid var(--color-border-light);
            color: var(--color-text-soft);
            transition: background var(--transition), color var(--transition), border-color var(--transition);
        }
        .category-hero .hero-actions .btn-outline:hover {
            background: rgba(255, 255, 255, 0.06);
            color: #fff;
            border-color: var(--color-text-soft);
        }
        @media (max-width: 768px) {
            .category-hero {
                min-height: 380px;
                padding: 100px 16px 60px;
            }
            .category-hero h1 {
                font-size: 34px;
            }
            .category-hero p {
                font-size: 17px;
            }
            .category-hero .hero-actions .btn-primary,
            .category-hero .hero-actions .btn-outline {
                padding: 12px 28px;
                font-size: 14px;
            }
        }
        @media (max-width: 480px) {
            .category-hero h1 {
                font-size: 28px;
            }
            .category-hero p {
                font-size: 15px;
            }
        }

        /* ===== 通用板块标题 ===== */
        .section-header {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-header .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 16px;
            font-size: 13px;
            font-weight: 600;
            color: var(--color-primary);
            background: rgba(255, 107, 53, 0.1);
            border-radius: 50px;
            letter-spacing: 0.3px;
            margin-bottom: 12px;
        }
        .section-header h2 {
            font-size: 36px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
            letter-spacing: -0.5px;
        }
        .section-header p {
            font-size: 17px;
            color: var(--color-text-soft);
            max-width: 580px;
            margin: 0 auto;
        }
        @media (max-width: 768px) {
            .section-header {
                margin-bottom: 32px;
            }
            .section-header h2 {
                font-size: 26px;
            }
            .section-header p {
                font-size: 15px;
            }
        }

        /* ===== 板块间距 ===== */
        .section {
            padding: 80px 0;
        }
        .section-alt {
            background: var(--color-bg-alt);
        }
        @media (max-width: 768px) {
            .section {
                padding: 50px 0;
            }
        }

        /* ===== 特色卡片网格 ===== */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .feature-card {
            background: var(--color-card);
            border-radius: var(--radius-md);
            padding: 36px 28px 32px;
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-card);
            transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
            text-align: center;
        }
        .feature-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-card-hover);
            border-color: var(--color-border-light);
        }
        .feature-card .card-icon {
            width: 64px;
            height: 64px;
            margin: 0 auto 20px;
            border-radius: 50%;
            background: rgba(255, 107, 53, 0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 28px;
            color: var(--color-primary);
            transition: background var(--transition), transform var(--transition);
        }
        .feature-card:hover .card-icon {
            background: rgba(255, 107, 53, 0.2);
            transform: scale(1.05);
        }
        .feature-card .card-img {
            border-radius: var(--radius-sm);
            overflow: hidden;
            margin-bottom: 20px;
            aspect-ratio: 16 / 9;
            background: var(--color-bg-alt);
        }
        .feature-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .feature-card:hover .card-img img {
            transform: scale(1.05);
        }
        .feature-card h3 {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 10px;
        }
        .feature-card p {
            font-size: 15px;
            color: var(--color-text-soft);
            line-height: 1.6;
        }
        @media (max-width: 1024px) {
            .features-grid {
                gap: 20px;
            }
        }
        @media (max-width: 768px) {
            .features-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .feature-card {
                padding: 24px 18px 22px;
            }
            .feature-card h3 {
                font-size: 17px;
            }
            .feature-card p {
                font-size: 14px;
            }
        }
        @media (max-width: 480px) {
            .features-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ===== 内容卡片 ===== */
        .cards-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .content-card {
            background: var(--color-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-card);
            transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
        }
        .content-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-card-hover);
            border-color: var(--color-border-light);
        }
        .content-card .card-cover {
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background: var(--color-bg-alt);
            position: relative;
        }
        .content-card .card-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .content-card:hover .card-cover img {
            transform: scale(1.06);
        }
        .content-card .card-cover .play-overlay {
            position: absolute;
            inset: 0;
            background: rgba(0, 0, 0, 0.3);
            display: flex;
            align-items: center;
            justify-content: center;
            opacity: 0;
            transition: opacity var(--transition);
        }
        .content-card:hover .card-cover .play-overlay {
            opacity: 1;
        }
        .content-card .card-cover .play-overlay i {
            font-size: 44px;
            color: #fff;
            background: rgba(255, 107, 53, 0.85);
            width: 64px;
            height: 64px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 24px rgba(255, 107, 53, 0.4);
        }
        .content-card .card-body {
            padding: 22px 24px 24px;
        }
        .content-card .card-body .card-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 10px;
        }
        .content-card .card-body .card-tags span {
            padding: 2px 12px;
            font-size: 12px;
            font-weight: 500;
            background: rgba(255, 255, 255, 0.06);
            border-radius: 50px;
            color: var(--color-text-muted);
        }
        .content-card .card-body h3 {
            font-size: 18px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 8px;
            line-height: 1.35;
        }
        .content-card .card-body p {
            font-size: 14px;
            color: var(--color-text-soft);
            line-height: 1.6;
            margin-bottom: 14px;
        }
        .content-card .card-body .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 13px;
            color: var(--color-text-muted);
        }
        .content-card .card-body .card-meta i {
            margin-right: 4px;
        }
        @media (max-width: 1024px) {
            .cards-grid {
                gap: 20px;
            }
        }
        @media (max-width: 768px) {
            .cards-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .content-card .card-body {
                padding: 16px 18px 18px;
            }
            .content-card .card-body h3 {
                font-size: 16px;
            }
        }
        @media (max-width: 480px) {
            .cards-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ===== 数据统计 ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
        }
        .stat-item {
            text-align: center;
            padding: 32px 16px;
            background: var(--color-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--color-border);
            transition: transform var(--transition), border-color var(--transition);
        }
        .stat-item:hover {
            transform: translateY(-4px);
            border-color: var(--color-border-light);
        }
        .stat-item .stat-number {
            font-size: 44px;
            font-weight: 900;
            background: var(--gradient-primary);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            line-height: 1.1;
            margin-bottom: 6px;
        }
        .stat-item .stat-label {
            font-size: 15px;
            color: var(--color-text-soft);
            font-weight: 500;
        }
        @media (max-width: 768px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .stat-item .stat-number {
                font-size: 34px;
            }
            .stat-item .stat-label {
                font-size: 14px;
            }
        }
        @media (max-width: 480px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .stat-item {
                padding: 20px 12px;
            }
            .stat-item .stat-number {
                font-size: 28px;
            }
        }

        /* ===== 内容列表 ===== */
        .list-section {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .list-item {
            display: flex;
            align-items: center;
            gap: 20px;
            background: var(--color-card);
            padding: 18px 24px;
            border-radius: var(--radius-md);
            border: 1px solid var(--color-border);
            transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
            cursor: default;
        }
        .list-item:hover {
            transform: translateX(6px);
            border-color: var(--color-border-light);
            box-shadow: var(--shadow-card);
        }
        .list-item .item-index {
            font-size: 22px;
            font-weight: 800;
            color: var(--color-text-muted);
            min-width: 36px;
            text-align: center;
        }
        .list-item .item-index.hot {
            color: var(--color-primary);
        }
        .list-item .item-content {
            flex: 1;
        }
        .list-item .item-content h4 {
            font-size: 17px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 4px;
        }
        .list-item .item-content p {
            font-size: 14px;
            color: var(--color-text-soft);
            line-height: 1.5;
        }
        .list-item .item-meta {
            font-size: 13px;
            color: var(--color-text-muted);
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .list-item .item-meta i {
            margin-right: 4px;
        }
        @media (max-width: 768px) {
            .list-item {
                flex-wrap: wrap;
                padding: 14px 16px;
                gap: 12px;
            }
            .list-item .item-index {
                font-size: 18px;
                min-width: 28px;
            }
            .list-item .item-content h4 {
                font-size: 15px;
            }
            .list-item .item-meta {
                font-size: 12px;
                width: 100%;
                justify-content: flex-end;
                padding-top: 4px;
                border-top: 1px solid var(--color-border);
            }
        }

        /* ===== FAQ ===== */
        .faq-grid {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .faq-item {
            background: var(--color-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--color-border);
            overflow: hidden;
            transition: border-color var(--transition);
        }
        .faq-item:hover {
            border-color: var(--color-border-light);
        }
        .faq-item .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 24px;
            font-size: 16px;
            font-weight: 600;
            color: #fff;
            cursor: pointer;
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            transition: background var(--transition);
            gap: 16px;
        }
        .faq-item .faq-question:hover {
            background: rgba(255, 255, 255, 0.03);
        }
        .faq-item .faq-question i {
            font-size: 18px;
            color: var(--color-primary);
            transition: transform var(--transition);
            flex-shrink: 0;
        }
        .faq-item.open .faq-question i {
            transform: rotate(180deg);
        }
        .faq-item .faq-answer {
            padding: 0 24px 18px;
            font-size: 15px;
            color: var(--color-text-soft);
            line-height: 1.7;
            display: none;
        }
        .faq-item.open .faq-answer {
            display: block;
        }
        @media (max-width: 768px) {
            .faq-item .faq-question {
                padding: 14px 16px;
                font-size: 15px;
            }
            .faq-item .faq-answer {
                padding: 0 16px 14px;
                font-size: 14px;
            }
        }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--gradient-hero);
            border-top: 1px solid var(--color-border);
            border-bottom: 1px solid var(--color-border);
        }
        .cta-box {
            text-align: center;
            padding: 64px 24px;
            max-width: 680px;
            margin: 0 auto;
        }
        .cta-box h2 {
            font-size: 36px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
        }
        .cta-box p {
            font-size: 18px;
            color: var(--color-text-soft);
            margin-bottom: 32px;
        }
        .cta-box .cta-actions {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        .cta-box .btn-cta {
            padding: 16px 42px;
            font-size: 17px;
            font-weight: 700;
            border-radius: 50px;
            background: var(--gradient-primary);
            color: #0b0b14;
            box-shadow: var(--shadow-btn);
            transition: transform var(--transition), box-shadow var(--transition);
        }
        .cta-box .btn-cta:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 36px rgba(255, 107, 53, 0.5);
        }
        .cta-box .btn-cta-second {
            padding: 16px 36px;
            font-size: 16px;
            font-weight: 600;
            border-radius: 50px;
            border: 1px solid var(--color-border-light);
            color: var(--color-text-soft);
            transition: background var(--transition), color var(--transition), border-color var(--transition);
        }
        .cta-box .btn-cta-second:hover {
            background: rgba(255, 255, 255, 0.06);
            color: #fff;
            border-color: var(--color-text-soft);
        }
        @media (max-width: 768px) {
            .cta-box {
                padding: 40px 16px;
            }
            .cta-box h2 {
                font-size: 26px;
            }
            .cta-box p {
                font-size: 15px;
            }
            .cta-box .btn-cta,
            .cta-box .btn-cta-second {
                padding: 14px 28px;
                font-size: 15px;
            }
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: #07070e;
            border-top: 1px solid var(--color-border);
            padding: 60px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid var(--color-border);
        }
        .footer-brand .logo-text {
            font-size: 22px;
            font-weight: 800;
            background: var(--gradient-primary);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            display: inline-block;
            margin-bottom: 14px;
        }
        .footer-brand p {
            font-size: 14px;
            color: var(--color-text-muted);
            line-height: 1.7;
            max-width: 340px;
        }
        .footer-col h4 {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: 0.3px;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul li a {
            font-size: 14px;
            color: var(--color-text-muted);
            transition: color var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--color-primary);
        }
        .footer-socials {
            display: flex;
            gap: 14px;
        }
        .footer-socials a {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
            color: var(--color-text-muted);
            font-size: 18px;
            transition: background var(--transition), color var(--transition), transform var(--transition);
        }
        .footer-socials a:hover {
            background: var(--color-primary);
            color: #fff;
            transform: translateY(-3px);
        }
        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px 0;
            font-size: 13px;
            color: var(--color-text-muted);
        }
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 30px;
            }
            .footer-brand {
                grid-column: 1 / -1;
            }
        }
        @media (max-width: 768px) {
            .site-footer {
                padding: 40px 0 0;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                gap: 6px;
                text-align: center;
            }
        }
        @media (max-width: 480px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
        }

        /* ===== 移动端导航脚本样式辅助 ===== */
        .no-scroll {
            overflow: hidden;
        }

        /* ===== 分隔线 ===== */
        .divider {
            width: 60px;
            height: 3px;
            background: var(--gradient-primary);
            border-radius: 4px;
            margin: 0 auto 20px;
        }

        /* ===== 小屏适配 ===== */
        @media (max-width: 520px) {
            .container {
                padding: 0 12px;
            }
            .section {
                padding: 36px 0;
            }
            .category-hero {
                min-height: 300px;
                padding: 80px 12px 40px;
            }
            .category-hero h1 {
                font-size: 24px;
            }
            .category-hero p {
                font-size: 14px;
            }
            .section-header h2 {
                font-size: 22px;
            }
            .feature-card h3 {
                font-size: 16px;
            }
            .content-card .card-body h3 {
                font-size: 15px;
            }
            .stat-item .stat-number {
                font-size: 24px;
            }
            .cta-box h2 {
                font-size: 22px;
            }
        }