/* roulang page: index */
/* ===== 设计变量 ===== */
        :root {
            --primary: #0f0f2e;
            --primary-light: #1a1a3e;
            --primary-dark: #08081a;
            --secondary: #2a2a5e;
            --accent: #ff6b4a;
            --accent-light: #ff8a6a;
            --accent2: #ffd700;
            --bg: #0a0a1a;
            --bg-card: #12122a;
            --bg-card-hover: #1a1a3a;
            --text: #f0f0f5;
            --text-muted: #8888aa;
            --text-dim: #666688;
            --border: #2a2a4a;
            --border-light: #3a3a5a;
            --shadow: 0 8px 32px rgba(0,0,0,0.4);
            --shadow-sm: 0 4px 16px rgba(0,0,0,0.3);
            --radius: 16px;
            --radius-sm: 10px;
            --radius-xs: 6px;
            --transition: 0.3s cubic-bezier(0.4,0,0.2,1);
            --font: 'Segoe UI','PingFang SC','Microsoft YaHei',system-ui,-apple-system,sans-serif;
            --max-width: 1200px;
            --header-height: 72px;
        }

        /* ===== Reset & Base ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; font-size: 16px; }
        body {
            font-family: var(--font);
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            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; }
        button, input, textarea { font-family: inherit; font-size: inherit; outline: none; border: none; }
        ul, ol { list-style: none; }
        h1, h2, h3, h4, h5, h6 { line-height: 1.3; font-weight: 700; color: var(--text); }
        h1 { font-size: 2.8rem; }
        h2 { font-size: 2rem; }
        h3 { font-size: 1.4rem; }
        h4 { font-size: 1.1rem; }
        p { margin-bottom: 1rem; color: var(--text-muted); }
        ::selection { background: var(--accent); color: #fff; }
        :focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

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

        /* ===== Buttons ===== */
        .btn {
            display: inline-flex; align-items: center; gap: 10px;
            padding: 14px 32px; border-radius: 50px;
            font-weight: 600; font-size: 1rem;
            cursor: pointer; transition: var(--transition);
            border: 2px solid transparent;
            letter-spacing: 0.3px;
        }
        .btn-primary {
            background: var(--accent); color: #fff;
            border-color: var(--accent);
            box-shadow: 0 4px 20px rgba(255,107,74,0.3);
        }
        .btn-primary:hover {
            background: var(--accent-light); border-color: var(--accent-light);
            transform: translateY(-2px); box-shadow: 0 8px 30px rgba(255,107,74,0.4);
            color: #fff;
        }
        .btn-secondary {
            background: transparent; color: var(--text);
            border-color: var(--border-light);
        }
        .btn-secondary:hover {
            border-color: var(--accent); color: var(--accent);
            transform: translateY(-2px);
        }
        .btn-sm { padding: 10px 20px; font-size: 0.9rem; }
        .btn-lg { padding: 18px 40px; font-size: 1.1rem; }
        @media (max-width: 768px) {
            .btn { padding: 12px 24px; font-size: 0.9rem; }
            .btn-lg { padding: 14px 28px; font-size: 1rem; }
        }

        /* ===== Badge / Tag ===== */
        .badge {
            display: inline-block; padding: 4px 14px;
            border-radius: 50px; font-size: 0.8rem; font-weight: 500;
            background: rgba(255,107,74,0.15); color: var(--accent);
            border: 1px solid rgba(255,107,74,0.2);
        }
        .badge-gold {
            background: rgba(255,215,0,0.15); color: var(--accent2);
            border-color: rgba(255,215,0,0.2);
        }
        .badge-blue {
            background: rgba(100,149,237,0.15); color: #6495ed;
            border-color: rgba(100,149,237,0.2);
        }

        /* ===== Section Spacing ===== */
        .section { padding: 80px 0; }
        .section-header { text-align: center; margin-bottom: 50px; }
        .section-header h2 { margin-bottom: 12px; }
        .section-header p { max-width: 600px; margin: 0 auto; font-size: 1.1rem; }
        @media (max-width: 768px) {
            .section { padding: 50px 0; }
            .section-header { margin-bottom: 30px; }
            h1 { font-size: 2rem; }
            h2 { font-size: 1.5rem; }
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: fixed; top: 0; left: 0; right: 0;
            height: var(--header-height);
            background: rgba(10,10,26,0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border);
            z-index: 1000;
            transition: var(--transition);
        }
        .site-header.scrolled { background: rgba(10,10,26,0.98); box-shadow: var(--shadow); }
        .header-inner {
            display: flex; align-items: center; justify-content: space-between;
            height: var(--header-height);
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        .logo {
            font-size: 1.35rem; font-weight: 800;
            color: var(--text);
            display: flex; align-items: center; gap: 10px;
            letter-spacing: -0.5px;
        }
        .logo i { color: var(--accent); font-size: 1.6rem; }
        .logo span { background: linear-gradient(135deg, var(--accent), var(--accent2)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
        .logo:hover { color: var(--text); }

        /* 导航 - 分段标签风格 */
        .nav-tabs {
            display: flex; align-items: center; gap: 4px;
            background: var(--bg-card);
            padding: 4px;
            border-radius: 50px;
            border: 1px solid var(--border);
        }
        .nav-tabs a {
            padding: 8px 20px; border-radius: 50px;
            font-size: 0.9rem; font-weight: 500;
            color: var(--text-muted);
            transition: var(--transition);
            white-space: nowrap;
        }
        .nav-tabs a:hover { color: var(--text); background: rgba(255,255,255,0.05); }
        .nav-tabs a.active {
            background: var(--accent); color: #fff;
            box-shadow: 0 4px 16px rgba(255,107,74,0.3);
        }
        .nav-tabs a.active:hover { color: #fff; }

        /* Header右侧 */
        .header-actions {
            display: flex; align-items: center; gap: 16px;
        }
        .search-toggle {
            background: transparent; color: var(--text-muted);
            font-size: 1.2rem; cursor: pointer;
            padding: 8px; border-radius: 50%;
            transition: var(--transition);
        }
        .search-toggle:hover { color: var(--accent); background: rgba(255,255,255,0.05); }

        /* 移动端菜单按钮 */
        .menu-toggle {
            display: none; background: transparent; color: var(--text);
            font-size: 1.5rem; cursor: pointer;
            padding: 8px; border-radius: var(--radius-xs);
        }
        @media (max-width: 768px) {
            .menu-toggle { display: block; }
            .nav-tabs {
                position: fixed; top: var(--header-height); left: 0; right: 0;
                flex-direction: column; background: var(--primary-dark);
                border-radius: 0; border: none;
                border-bottom: 1px solid var(--border);
                padding: 16px; gap: 8px;
                transform: translateY(-120%); opacity: 0;
                transition: var(--transition);
                pointer-events: none;
            }
            .nav-tabs.open {
                transform: translateY(0); opacity: 1;
                pointer-events: all;
            }
            .nav-tabs a { width: 100%; text-align: center; padding: 12px 20px; }
            .header-actions .btn { display: none; }
        }

        /* ===== Hero ===== */
        .hero {
            min-height: 90vh;
            display: flex; align-items: center;
            position: relative;
            padding: 120px 0 80px;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
        }
        .hero::before {
            content: ''; position: absolute; inset: 0;
            background: linear-gradient(135deg, rgba(10,10,26,0.85) 0%, rgba(10,10,26,0.5) 50%, rgba(15,15,46,0.8) 100%);
        }
        .hero .container { position: relative; z-index: 2; }
        .hero-content { max-width: 700px; }
        .hero-badge {
            display: inline-block; padding: 6px 18px;
            border-radius: 50px; font-size: 0.85rem; font-weight: 500;
            background: rgba(255,215,0,0.15); color: var(--accent2);
            border: 1px solid rgba(255,215,0,0.2);
            margin-bottom: 20px;
            backdrop-filter: blur(10px);
        }
        .hero h1 { font-size: 3.5rem; margin-bottom: 16px; line-height: 1.15; }
        .hero h1 span { background: linear-gradient(135deg, var(--accent), var(--accent2)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
        .hero p { font-size: 1.2rem; margin-bottom: 32px; max-width: 580px; color: var(--text-muted); }
        .hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
        .hero-stats {
            display: flex; gap: 40px; margin-top: 50px;
            padding-top: 30px;
            border-top: 1px solid var(--border);
        }
        .hero-stat h3 { font-size: 2rem; color: var(--accent2); }
        .hero-stat p { font-size: 0.9rem; margin: 0; color: var(--text-dim); }
        @media (max-width: 768px) {
            .hero { min-height: 70vh; padding: 100px 0 50px; }
            .hero h1 { font-size: 2.2rem; }
            .hero p { font-size: 1rem; }
            .hero-stats { gap: 24px; flex-wrap: wrap; }
            .hero-stat h3 { font-size: 1.5rem; }
        }
        @media (max-width: 520px) {
            .hero h1 { font-size: 1.8rem; }
            .hero-actions { flex-direction: column; }
            .hero-actions .btn { width: 100%; justify-content: center; }
        }

        /* ===== Card Grid ===== */
        .grid-2 { display: grid; grid-template-columns: repeat(2,1fr); gap: 28px; }
        .grid-3 { display: grid; grid-template-columns: repeat(3,1fr); gap: 28px; }
        .grid-4 { display: grid; grid-template-columns: repeat(4,1fr); gap: 24px; }
        @media (max-width: 1024px) {
            .grid-4 { grid-template-columns: repeat(2,1fr); }
            .grid-3 { grid-template-columns: repeat(2,1fr); }
        }
        @media (max-width: 768px) {
            .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; gap: 20px; }
        }

        /* ===== Cards ===== */
        .card {
            background: var(--bg-card);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            padding: 28px;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }
        .card:hover {
            background: var(--bg-card-hover);
            border-color: var(--border-light);
            transform: translateY(-4px);
            box-shadow: var(--shadow-sm);
        }
        .card-icon {
            width: 52px; height: 52px;
            border-radius: var(--radius-sm);
            display: flex; align-items: center; justify-content: center;
            font-size: 1.4rem;
            margin-bottom: 18px;
            background: rgba(255,107,74,0.12); color: var(--accent);
        }
        .card h3 { margin-bottom: 10px; font-size: 1.2rem; }
        .card p { font-size: 0.95rem; margin-bottom: 0; }
        .card .badge { margin-bottom: 12px; }

        /* ===== Cover Card (图片卡片) ===== */
        .cover-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            overflow: hidden;
            transition: var(--transition);
        }
        .cover-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-sm);
            border-color: var(--border-light);
        }
        .cover-card .cover-img {
            width: 100%; height: 200px;
            object-fit: cover;
            display: block;
            border-bottom: 1px solid var(--border);
        }
        .cover-card .cover-body { padding: 20px 24px 24px; }
        .cover-card .cover-body h3 { font-size: 1.15rem; margin-bottom: 8px; }
        .cover-card .cover-body p { font-size: 0.9rem; margin-bottom: 14px; }
        .cover-meta { display: flex; align-items: center; gap: 16px; font-size: 0.8rem; color: var(--text-dim); }
        .cover-meta i { margin-right: 4px; }

        /* ===== 内容列表（CMS） ===== */
        .post-list { display: flex; flex-direction: column; gap: 16px; }
        .post-item {
            display: flex; align-items: center; gap: 20px;
            background: var(--bg-card);
            border-radius: var(--radius-sm);
            padding: 20px 24px;
            border: 1px solid var(--border);
            transition: var(--transition);
        }
        .post-item:hover {
            background: var(--bg-card-hover);
            border-color: var(--border-light);
            transform: translateX(4px);
        }
        .post-item .post-num {
            width: 40px; height: 40px;
            border-radius: 50%;
            display: flex; align-items: center; justify-content: center;
            font-weight: 700; font-size: 1rem;
            background: rgba(255,107,74,0.1); color: var(--accent);
            flex-shrink: 0;
        }
        .post-item .post-info { flex: 1; min-width: 0; }
        .post-item .post-info h4 { font-size: 1rem; margin-bottom: 4px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
        .post-item .post-info h4 a { color: var(--text); }
        .post-item .post-info h4 a:hover { color: var(--accent); }
        .post-item .post-info p { font-size: 0.85rem; margin: 0; color: var(--text-dim); }
        .post-item .post-meta { font-size: 0.8rem; color: var(--text-dim); white-space: nowrap; }
        @media (max-width: 768px) {
            .post-item { flex-wrap: wrap; gap: 12px; }
            .post-item .post-meta { width: 100%; text-align: left; }
        }

        /* ===== 流程步骤 ===== */
        .steps { display: grid; grid-template-columns: repeat(3,1fr); gap: 32px; counter-reset: step; }
        .step-item {
            text-align: center;
            position: relative;
            padding: 32px 20px;
            background: var(--bg-card);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            transition: var(--transition);
        }
        .step-item:hover { border-color: var(--accent); transform: translateY(-4px); }
        .step-item::before {
            counter-increment: step;
            content: "0" counter(step);
            position: absolute; top: 16px; right: 20px;
            font-size: 2.8rem; font-weight: 900;
            color: rgba(255,107,74,0.08);
            line-height: 1;
        }
        .step-icon {
            width: 64px; height: 64px;
            border-radius: 50%;
            display: flex; align-items: center; justify-content: center;
            font-size: 1.6rem;
            margin: 0 auto 18px;
            background: rgba(255,107,74,0.12); color: var(--accent);
        }
        .step-item h3 { font-size: 1.15rem; margin-bottom: 8px; }
        .step-item p { font-size: 0.9rem; margin: 0; }
        @media (max-width: 768px) {
            .steps { grid-template-columns: 1fr; gap: 20px; }
        }

        /* ===== FAQ ===== */
        .faq-list { max-width: 800px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover { border-color: var(--border-light); }
        .faq-question {
            width: 100%; text-align: left;
            padding: 18px 24px;
            background: transparent;
            color: var(--text);
            font-weight: 600; font-size: 1rem;
            cursor: pointer;
            display: flex; justify-content: space-between; align-items: center;
            gap: 16px;
        }
        .faq-question i { color: var(--accent); transition: var(--transition); font-size: 0.9rem; }
        .faq-item.open .faq-question i { transform: rotate(180deg); }
        .faq-answer {
            max-height: 0; overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 24px;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 24px 18px;
        }
        .faq-answer p { font-size: 0.95rem; margin: 0; color: var(--text-muted); }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary-light), var(--secondary));
            border-radius: var(--radius);
            padding: 60px 48px;
            text-align: center;
            border: 1px solid var(--border);
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: ''; position: absolute; inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.1;
        }
        .cta-section .container { position: relative; z-index: 2; }
        .cta-section h2 { font-size: 2.2rem; margin-bottom: 12px; }
        .cta-section p { max-width: 560px; margin: 0 auto 28px; font-size: 1.05rem; }
        .cta-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
        @media (max-width: 768px) {
            .cta-section { padding: 40px 24px; }
            .cta-section h2 { font-size: 1.5rem; }
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--primary-dark);
            border-top: 1px solid var(--border);
            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 { font-size: 0.9rem; max-width: 320px; }
        .footer-col h4 { font-size: 1rem; margin-bottom: 16px; color: var(--text); }
        .footer-col a {
            display: block; padding: 6px 0;
            font-size: 0.9rem; color: var(--text-muted);
        }
        .footer-col a:hover { color: var(--accent); }
        .footer-bottom {
            border-top: 1px solid var(--border);
            padding-top: 24px;
            display: flex; justify-content: space-between; align-items: center;
            flex-wrap: wrap; gap: 12px;
            font-size: 0.85rem; color: var(--text-dim);
        }
        .footer-bottom a { color: var(--text-dim); }
        .footer-bottom a:hover { color: var(--accent); }
        @media (max-width: 768px) {
            .footer-grid { grid-template-columns: 1fr 1fr; gap: 30px; }
            .footer-bottom { flex-direction: column; text-align: center; }
        }
        @media (max-width: 520px) {
            .footer-grid { grid-template-columns: 1fr; }
        }

        /* ===== 文章页专用 ===== */
        .article-banner {
            padding: 120px 0 40px;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            position: relative;
        }
        .article-banner::before {
            content: ''; position: absolute; inset: 0;
            background: linear-gradient(135deg, rgba(10,10,26,0.9), rgba(10,10,26,0.6));
        }
        .article-banner .container { position: relative; z-index: 2; }
        .article-meta { display: flex; gap: 20px; font-size: 0.9rem; color: var(--text-muted); margin-bottom: 12px; flex-wrap: wrap; }
        .article-meta span { display: flex; align-items: center; gap: 6px; }
        .article-body {
            max-width: 800px; margin: 0 auto;
            background: var(--bg-card);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            padding: 40px 48px;
            margin-top: -40px;
            position: relative; z-index: 3;
        }
        .article-body h1 { font-size: 2rem; margin-bottom: 20px; }
        .article-body p { font-size: 1.05rem; line-height: 1.9; margin-bottom: 1.2rem; }
        .article-body img { border-radius: var(--radius-sm); margin: 24px 0; }
        .article-body blockquote {
            border-left: 4px solid var(--accent);
            padding: 16px 24px;
            background: rgba(255,107,74,0.05);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            margin: 24px 0;
        }
        .article-body blockquote p { margin: 0; }
        .article-nav {
            display: flex; justify-content: space-between;
            margin-top: 40px; padding-top: 24px;
            border-top: 1px solid var(--border);
        }
        @media (max-width: 768px) {
            .article-body { padding: 24px 20px; margin-top: -20px; }
            .article-body h1 { font-size: 1.4rem; }
        }

        /* ===== 分类页Banner ===== */
        .category-banner {
            padding: 120px 0 60px;
            background: url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
            position: relative;
            text-align: center;
        }
        .category-banner::before {
            content: ''; position: absolute; inset: 0;
            background: linear-gradient(135deg, rgba(10,10,26,0.85), rgba(10,10,26,0.6));
        }
        .category-banner .container { position: relative; z-index: 2; }
        .category-banner h1 { font-size: 2.8rem; margin-bottom: 12px; }
        .category-banner p { max-width: 560px; margin: 0 auto; font-size: 1.1rem; }

        /* ===== 空状态 ===== */
        .empty-state { text-align: center; padding: 40px 20px; color: var(--text-dim); }
        .empty-state i { font-size: 3rem; margin-bottom: 16px; opacity: 0.3; }
        .empty-state p { font-size: 1rem; }

        /* ===== 额外工具类 ===== */
        .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; }
        .relative { position: relative; }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #6c5ce7;
            --primary-dark: #5a4bd1;
            --primary-light: #a29bfe;
            --secondary: #fd79a8;
            --accent: #fdcb6e;
            --bg-body: #0f0d1a;
            --bg-card: #1a1730;
            --bg-card-hover: #221f3a;
            --bg-section: #141127;
            --bg-header: rgba(15, 13, 26, 0.95);
            --text-main: #f0ecff;
            --text-muted: #9b94b8;
            --text-weak: #6e6790;
            --border-color: #2d2750;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 22px;
            --shadow-sm: 0 2px 12px rgba(108, 92, 231, 0.12);
            --shadow-md: 0 8px 32px rgba(108, 92, 231, 0.18);
            --shadow-lg: 0 16px 56px rgba(108, 92, 231, 0.25);
            --space-xs: 8px;
            --space-sm: 16px;
            --space-md: 28px;
            --space-lg: 48px;
            --space-xl: 72px;
            --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', system-ui, -apple-system, sans-serif;
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

        /* ===== Reset & Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
        }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-main);
            background: var(--bg-body);
            min-height: 100vh;
        }
        a {
            color: var(--primary-light);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: #fff;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-sm);
        }
        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            transition: all var(--transition);
        }
        ul,
        ol {
            list-style: none;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.3;
            color: #fff;
        }

        /* ===== Container ===== */
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 var(--space-md);
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: var(--bg-header);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-color);
            padding: 0 var(--space-md);
        }
        .header-inner {
            max-width: 1200px;
            margin: 0 auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 70px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 22px;
            font-weight: 800;
            color: #fff;
            letter-spacing: 0.5px;
        }
        .logo i {
            color: var(--primary-light);
            font-size: 28px;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .logo span {
            background: linear-gradient(135deg, #fff, var(--primary-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .nav-tabs {
            display: flex;
            align-items: center;
            gap: 4px;
            background: var(--bg-card);
            padding: 4px;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
        }
        .nav-tabs a {
            padding: 10px 22px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 500;
            color: var(--text-muted);
            transition: all var(--transition);
            white-space: nowrap;
        }
        .nav-tabs a:hover {
            color: #fff;
            background: rgba(108, 92, 231, 0.15);
        }
        .nav-tabs a.active {
            color: #fff;
            background: var(--primary);
            box-shadow: 0 4px 16px rgba(108, 92, 231, 0.35);
        }
        .nav-cta {
            display: none;
        }
        .mobile-toggle {
            display: none;
            background: none;
            color: #fff;
            font-size: 26px;
            cursor: pointer;
            padding: 8px;
        }

        /* ===== Hero / Banner ===== */
        .page-banner {
            position: relative;
            padding: var(--space-xl) 0 var(--space-lg);
            background: linear-gradient(135deg, var(--bg-section) 0%, #1a1535 100%);
            overflow: hidden;
            min-height: 320px;
            display: flex;
            align-items: center;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            opacity: 0.25;
            mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.6), transparent);
            -webkit-mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.6), transparent);
        }
        .page-banner::after {
            content: '';
            position: absolute;
            top: -30%;
            right: -10%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(108, 92, 231, 0.15), transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .banner-content {
            position: relative;
            z-index: 2;
            text-align: center;
        }
        .banner-content h1 {
            font-size: 48px;
            font-weight: 800;
            margin-bottom: var(--space-sm);
            background: linear-gradient(135deg, #fff, var(--primary-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .banner-content p {
            font-size: 18px;
            color: var(--text-muted);
            max-width: 640px;
            margin: 0 auto var(--space-md);
        }
        .banner-tags {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 10px;
        }
        .banner-tags .tag {
            padding: 6px 18px;
            border-radius: 50px;
            font-size: 14px;
            font-weight: 500;
            background: rgba(108, 92, 231, 0.18);
            color: var(--primary-light);
            border: 1px solid rgba(108, 92, 231, 0.25);
            transition: all var(--transition);
        }
        .banner-tags .tag:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            transform: translateY(-2px);
        }

        /* ===== Section共用 ===== */
        .section {
            padding: var(--space-xl) 0;
        }
        .section-alt {
            background: var(--bg-section);
        }
        .section-title {
            font-size: 34px;
            font-weight: 800;
            text-align: center;
            margin-bottom: 12px;
        }
        .section-sub {
            text-align: center;
            color: var(--text-muted);
            font-size: 17px;
            max-width: 640px;
            margin: 0 auto var(--space-lg);
        }
        .section-divider {
            width: 60px;
            height: 4px;
            background: linear-gradient(90deg, var(--primary), var(--secondary));
            border-radius: 4px;
            margin: 0 auto var(--space-md);
        }

        /* ===== 卡片网格 ===== */
        .card-grid {
            display: grid;
            gap: var(--space-md);
            grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
        }
        .card-game {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border-color);
            transition: all var(--transition);
            cursor: default;
        }
        .card-game:hover {
            transform: translateY(-6px);
            border-color: var(--primary);
            box-shadow: var(--shadow-md);
            background: var(--bg-card-hover);
        }
        .card-game .card-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            border-radius: 0;
            display: block;
        }
        .card-game .card-body {
            padding: var(--space-md);
        }
        .card-game .card-body h3 {
            font-size: 20px;
            margin-bottom: 8px;
        }
        .card-game .card-body p {
            color: var(--text-muted);
            font-size: 15px;
            margin-bottom: var(--space-sm);
        }
        .card-game .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 13px;
            color: var(--text-weak);
        }
        .card-game .card-meta .badge {
            padding: 4px 12px;
            border-radius: 50px;
            font-size: 12px;
            font-weight: 600;
            background: rgba(108, 92, 231, 0.2);
            color: var(--primary-light);
        }
        .card-game .card-meta .badge.hot {
            background: rgba(253, 121, 168, 0.2);
            color: var(--secondary);
        }
        .card-game .card-meta .badge.new {
            background: rgba(253, 203, 110, 0.2);
            color: var(--accent);
        }

        /* ===== 特色列表 ===== */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: var(--space-md);
        }
        .feature-item {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: var(--space-md);
            text-align: center;
            transition: all var(--transition);
        }
        .feature-item:hover {
            transform: translateY(-4px);
            border-color: var(--primary);
            box-shadow: var(--shadow-sm);
        }
        .feature-item .icon {
            font-size: 40px;
            width: 70px;
            height: 70px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto var(--space-sm);
            border-radius: 50%;
            background: rgba(108, 92, 231, 0.12);
            color: var(--primary-light);
        }
        .feature-item h4 {
            font-size: 18px;
            margin-bottom: 6px;
        }
        .feature-item p {
            font-size: 14px;
            color: var(--text-muted);
        }

        /* ===== 步骤流程 ===== */
        .steps {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: var(--space-md);
            counter-reset: step;
        }
        .step-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: var(--space-md);
            text-align: center;
            position: relative;
            transition: all var(--transition);
        }
        .step-card:hover {
            border-color: var(--primary);
            transform: translateY(-3px);
            box-shadow: var(--shadow-sm);
        }
        .step-card::before {
            counter-increment: step;
            content: counter(step);
            position: absolute;
            top: -14px;
            left: 50%;
            transform: translateX(-50%);
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            font-weight: 700;
            font-size: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 14px rgba(108, 92, 231, 0.3);
        }
        .step-card h4 {
            font-size: 18px;
            margin: 12px 0 6px;
        }
        .step-card p {
            font-size: 14px;
            color: var(--text-muted);
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 0;
            overflow: hidden;
            transition: border-color var(--transition);
        }
        .faq-item:hover {
            border-color: var(--primary);
        }
        .faq-question {
            padding: var(--space-sm) var(--space-md);
            font-size: 17px;
            font-weight: 600;
            color: #fff;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            background: none;
            width: 100%;
            text-align: left;
            transition: background var(--transition);
        }
        .faq-question:hover {
            background: rgba(108, 92, 231, 0.08);
        }
        .faq-question i {
            color: var(--primary-light);
            transition: transform var(--transition);
            font-size: 18px;
        }
        .faq-question.open i {
            transform: rotate(180deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            padding: 0 var(--space-md);
            color: var(--text-muted);
            font-size: 15px;
            line-height: 1.8;
        }
        .faq-answer.open {
            max-height: 400px;
            padding: 0 var(--space-md) var(--space-md);
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary-dark), #4a3fbf);
            border-radius: var(--radius-lg);
            padding: var(--space-lg) var(--space-md);
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.png') center/cover no-repeat;
            opacity: 0.1;
            mix-blend-mode: overlay;
        }
        .cta-section h2 {
            font-size: 34px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
            position: relative;
        }
        .cta-section p {
            font-size: 17px;
            color: rgba(255, 255, 255, 0.85);
            max-width: 560px;
            margin: 0 auto var(--space-md);
            position: relative;
        }
        .btn-group {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 14px;
            position: relative;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 34px;
            border-radius: 50px;
            font-size: 16px;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: all var(--transition);
            color: #fff;
            background: rgba(255, 255, 255, 0.12);
            backdrop-filter: blur(8px);
            border: 1px solid rgba(255, 255, 255, 0.2);
        }
        .btn:hover {
            background: rgba(255, 255, 255, 0.22);
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.2);
            color: #fff;
        }
        .btn-primary {
            background: #fff;
            color: var(--primary-dark);
            border-color: #fff;
        }
        .btn-primary:hover {
            background: var(--primary-light);
            color: #fff;
            border-color: var(--primary-light);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-section);
            border-top: 1px solid var(--border-color);
            padding: var(--space-lg) 0 var(--space-md);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: var(--space-lg);
            margin-bottom: var(--space-lg);
        }
        .footer-brand .logo {
            margin-bottom: var(--space-sm);
        }
        .footer-brand p {
            color: var(--text-muted);
            font-size: 15px;
            max-width: 320px;
        }
        .footer-col h4 {
            font-size: 16px;
            margin-bottom: var(--space-sm);
            color: #fff;
        }
        .footer-col a {
            display: block;
            color: var(--text-muted);
            font-size: 14px;
            padding: 5px 0;
            transition: all var(--transition);
        }
        .footer-col a:hover {
            color: #fff;
            padding-left: 4px;
        }
        .footer-col a i {
            width: 20px;
            color: var(--primary-light);
        }
        .footer-bottom {
            border-top: 1px solid var(--border-color);
            padding-top: var(--space-md);
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 14px;
            color: var(--text-weak);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .banner-content h1 {
                font-size: 38px;
            }
        }
        @media (max-width: 768px) {
            .mobile-toggle {
                display: block;
            }
            .nav-tabs {
                position: absolute;
                top: 70px;
                left: var(--space-md);
                right: var(--space-md);
                flex-direction: column;
                background: var(--bg-card);
                border: 1px solid var(--border-color);
                border-radius: var(--radius-md);
                padding: 8px;
                display: none;
                box-shadow: var(--shadow-lg);
                z-index: 99;
            }
            .nav-tabs.open {
                display: flex;
            }
            .nav-tabs a {
                width: 100%;
                text-align: center;
                padding: 12px;
            }
            .header-inner {
                height: 60px;
            }
            .logo {
                font-size: 18px;
            }
            .logo i {
                font-size: 22px;
            }
            .banner-content h1 {
                font-size: 28px;
            }
            .banner-content p {
                font-size: 16px;
            }
            .section-title {
                font-size: 26px;
            }
            .card-grid {
                grid-template-columns: 1fr;
            }
            .feature-grid {
                grid-template-columns: 1fr 1fr;
            }
            .steps {
                grid-template-columns: 1fr 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: var(--space-md);
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .cta-section h2 {
                font-size: 26px;
            }
            .page-banner {
                min-height: 240px;
                padding: var(--space-lg) 0;
            }
        }
        @media (max-width: 520px) {
            .feature-grid {
                grid-template-columns: 1fr;
            }
            .steps {
                grid-template-columns: 1fr;
            }
            .banner-content h1 {
                font-size: 24px;
            }
            .btn {
                width: 100%;
                justify-content: center;
            }
            .section {
                padding: var(--space-lg) 0;
            }
            .container {
                padding: 0 var(--space-sm);
            }
        }

        /* ===== 工具类 ===== */
        .text-center {
            text-align: center;
        }
        .mt-sm {
            margin-top: var(--space-sm);
        }
        .mt-md {
            margin-top: var(--space-md);
        }
        .mb-sm {
            margin-bottom: var(--space-sm);
        }
        .mb-md {
            margin-bottom: var(--space-md);
        }
        .gap-sm {
            gap: var(--space-sm);
        }
        .flex-wrap {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            justify-content: center;
        }

/* roulang page: article */
/* ===== Design Variables ===== */
        :root {
            --primary: #6c3ef5;
            --primary-light: #8b6bf7;
            --primary-dark: #5128d4;
            --primary-bg: #f0ebff;
            --secondary: #f59e3e;
            --secondary-light: #f7b86b;
            --accent: #10b981;
            --bg: #f9fafc;
            --bg-alt: #f0f2f8;
            --bg-card: #ffffff;
            --text: #1a1a2e;
            --text-light: #6b7280;
            --text-white: #ffffff;
            --border: #e5e7eb;
            --border-light: #f3f4f6;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
            --shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.12);
            --radius: 12px;
            --radius-sm: 8px;
            --radius-lg: 20px;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
            --max-width: 1200px;
            --nav-height: 72px;
        }

        /* ===== Reset & Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: var(--font);
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary-dark);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-sm);
        }
        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }
        ul,
        ol {
            list-style: none;
        }

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

        /* ===== Header & Navigation ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-light);
            height: var(--nav-height);
            transition: var(--transition);
        }
        .site-header.scrolled {
            background: rgba(255, 255, 255, 0.98);
            box-shadow: var(--shadow-sm);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--nav-height);
            gap: 24px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--text);
            flex-shrink: 0;
        }
        .logo i {
            color: var(--primary);
            font-size: 1.6rem;
        }
        .logo:hover {
            color: var(--primary);
        }
        .nav-tabs {
            display: flex;
            align-items: center;
            gap: 4px;
            background: var(--bg-alt);
            border-radius: var(--radius);
            padding: 4px;
            overflow-x: auto;
            scrollbar-width: none;
            -ms-overflow-style: none;
        }
        .nav-tabs::-webkit-scrollbar {
            display: none;
        }
        .nav-tabs a {
            padding: 8px 20px;
            border-radius: var(--radius-sm);
            font-weight: 500;
            font-size: 0.92rem;
            color: var(--text-light);
            white-space: nowrap;
            transition: var(--transition);
            position: relative;
        }
        .nav-tabs a:hover {
            color: var(--text);
            background: rgba(108, 62, 245, 0.08);
        }
        .nav-tabs a.active {
            background: var(--bg-card);
            color: var(--primary);
            box-shadow: var(--shadow-sm);
            font-weight: 600;
        }
        .nav-cta {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }
        .nav-cta .btn-primary {
            padding: 10px 24px;
            border-radius: var(--radius);
            background: var(--primary);
            color: var(--text-white);
            font-weight: 600;
            font-size: 0.9rem;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-cta .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(108, 62, 245, 0.3);
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--text);
            cursor: pointer;
            padding: 4px 8px;
            border-radius: var(--radius-sm);
            transition: var(--transition);
        }
        .nav-toggle:hover {
            background: var(--bg-alt);
        }

        /* ===== Mobile Nav ===== */
        .mobile-nav {
            display: none;
            position: fixed;
            top: var(--nav-height);
            left: 0;
            right: 0;
            background: var(--bg-card);
            border-bottom: 1px solid var(--border);
            box-shadow: var(--shadow-lg);
            padding: 16px 24px;
            z-index: 999;
            transform: translateY(-100%);
            opacity: 0;
            transition: var(--transition);
            pointer-events: none;
        }
        .mobile-nav.open {
            transform: translateY(0);
            opacity: 1;
            pointer-events: auto;
        }
        .mobile-nav a {
            display: block;
            padding: 12px 16px;
            border-radius: var(--radius-sm);
            font-weight: 500;
            color: var(--text);
            transition: var(--transition);
        }
        .mobile-nav a:hover {
            background: var(--primary-bg);
            color: var(--primary);
        }
        .mobile-nav a.active {
            background: var(--primary-bg);
            color: var(--primary);
            font-weight: 600;
        }

        /* ===== Hero / Banner ===== */
        .article-banner {
            padding: 140px 0 60px;
            background: linear-gradient(135deg, #1a1a2e 0%, #2d1b69 50%, #1a1a2e 100%);
            position: relative;
            overflow: hidden;
            min-height: 320px;
            display: flex;
            align-items: center;
        }
        .article-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.15;
            mix-blend-mode: overlay;
        }
        .article-banner::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(to bottom, rgba(26, 26, 46, 0.6) 0%, rgba(26, 26, 46, 0.9) 100%);
        }
        .article-banner .container {
            position: relative;
            z-index: 2;
        }
        .article-banner .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.6);
            margin-bottom: 20px;
            flex-wrap: wrap;
        }
        .article-banner .breadcrumb a {
            color: rgba(255, 255, 255, 0.7);
            transition: var(--transition);
        }
        .article-banner .breadcrumb a:hover {
            color: var(--secondary);
        }
        .article-banner .breadcrumb span {
            color: rgba(255, 255, 255, 0.9);
        }
        .article-banner .banner-category {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 20px;
            background: rgba(108, 62, 245, 0.3);
            color: #c4b0ff;
            font-size: 0.82rem;
            font-weight: 500;
            margin-bottom: 16px;
            backdrop-filter: blur(4px);
            border: 1px solid rgba(108, 62, 245, 0.2);
        }
        .article-banner h1 {
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--text-white);
            line-height: 1.2;
            max-width: 820px;
            margin-bottom: 20px;
            letter-spacing: -0.02em;
        }
        .article-banner .banner-meta {
            display: flex;
            align-items: center;
            gap: 20px;
            color: rgba(255, 255, 255, 0.65);
            font-size: 0.92rem;
            flex-wrap: wrap;
        }
        .article-banner .banner-meta i {
            margin-right: 6px;
            opacity: 0.7;
        }
        .article-banner .banner-meta span {
            display: flex;
            align-items: center;
        }

        /* ===== Article Content ===== */
        .article-main {
            padding: 48px 0 60px;
        }
        .article-layout {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
        }
        .article-body {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 40px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
        }
        .article-body .featured-image {
            border-radius: var(--radius);
            overflow: hidden;
            margin-bottom: 32px;
            box-shadow: var(--shadow-sm);
        }
        .article-body .featured-image img {
            width: 100%;
            aspect-ratio: 16 / 9;
            object-fit: cover;
            border-radius: var(--radius);
        }
        .article-body .content {
            font-size: 1.05rem;
            line-height: 1.9;
            color: var(--text);
        }
        .article-body .content p {
            margin-bottom: 1.2em;
        }
        .article-body .content h2,
        .article-body .content h3 {
            margin-top: 1.8em;
            margin-bottom: 0.6em;
            font-weight: 700;
            color: var(--text);
        }
        .article-body .content h2 {
            font-size: 1.6rem;
        }
        .article-body .content h3 {
            font-size: 1.25rem;
        }
        .article-body .content ul,
        .article-body .content ol {
            margin-bottom: 1.2em;
            padding-left: 1.5em;
        }
        .article-body .content ul li {
            list-style: disc;
            margin-bottom: 0.4em;
        }
        .article-body .content ol li {
            list-style: decimal;
            margin-bottom: 0.4em;
        }
        .article-body .content a {
            color: var(--primary);
            text-decoration: underline;
            text-underline-offset: 2px;
        }
        .article-body .content a:hover {
            color: var(--primary-dark);
        }
        .article-body .content blockquote {
            border-left: 4px solid var(--primary);
            padding: 16px 20px;
            margin: 1.5em 0;
            background: var(--primary-bg);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-light);
        }
        .article-body .content img {
            border-radius: var(--radius);
            margin: 1.5em 0;
            box-shadow: var(--shadow-sm);
        }
        .article-body .content code {
            background: var(--bg-alt);
            padding: 2px 8px;
            border-radius: 4px;
            font-size: 0.9em;
            font-family: 'SF Mono', 'Fira Code', monospace;
        }
        .article-body .content pre {
            background: #1a1a2e;
            padding: 20px 24px;
            border-radius: var(--radius);
            overflow-x: auto;
            margin: 1.5em 0;
        }
        .article-body .content pre code {
            background: transparent;
            padding: 0;
            color: #e5e7eb;
        }

        /* ===== Tags ===== */
        .article-tags {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 10px;
            padding-top: 28px;
            margin-top: 28px;
            border-top: 1px solid var(--border-light);
        }
        .article-tags .tag-label {
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--text-light);
            margin-right: 4px;
        }
        .article-tags .tag-item {
            padding: 4px 14px;
            border-radius: 20px;
            background: var(--primary-bg);
            color: var(--primary);
            font-size: 0.82rem;
            font-weight: 500;
            transition: var(--transition);
        }
        .article-tags .tag-item:hover {
            background: var(--primary);
            color: var(--text-white);
        }

        /* ===== Sidebar ===== */
        .article-sidebar {
            display: flex;
            flex-direction: column;
            gap: 24px;
        }
        .sidebar-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 24px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
        }
        .sidebar-card h3 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--text);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .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;
            transition: var(--transition);
        }
        .sidebar-list-item:hover {
            transform: translateX(4px);
        }
        .sidebar-list-item .item-thumb {
            width: 60px;
            height: 60px;
            border-radius: var(--radius-sm);
            object-fit: cover;
            flex-shrink: 0;
            background: var(--bg-alt);
        }
        .sidebar-list-item .item-info {
            flex: 1;
            min-width: 0;
        }
        .sidebar-list-item .item-title {
            font-size: 0.88rem;
            font-weight: 600;
            color: var(--text);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            line-height: 1.4;
            transition: var(--transition);
        }
        .sidebar-list-item:hover .item-title {
            color: var(--primary);
        }
        .sidebar-list-item .item-date {
            font-size: 0.75rem;
            color: var(--text-light);
            margin-top: 4px;
        }
        .sidebar-cta {
            margin-top: 8px;
        }
        .sidebar-cta .btn-outline {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            width: 100%;
            padding: 10px 20px;
            border-radius: var(--radius-sm);
            border: 2px solid var(--border);
            color: var(--text);
            font-weight: 600;
            font-size: 0.88rem;
            transition: var(--transition);
            background: transparent;
            cursor: pointer;
        }
        .sidebar-cta .btn-outline:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: var(--primary-bg);
        }

        /* ===== Related Section ===== */
        .related-section {
            padding: 60px 0;
            background: var(--bg-alt);
        }
        .related-section .section-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 32px;
            flex-wrap: wrap;
            gap: 12px;
        }
        .related-section .section-header h2 {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--text);
        }
        .related-section .section-header .section-link {
            font-size: 0.9rem;
            color: var(--primary);
            font-weight: 500;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .related-section .section-header .section-link:hover {
            gap: 10px;
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .related-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);
        }
        .related-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
        }
        .related-card .card-img {
            width: 100%;
            aspect-ratio: 16 / 10;
            object-fit: cover;
            background: var(--bg-alt);
        }
        .related-card .card-body {
            padding: 16px 18px 20px;
        }
        .related-card .card-category {
            display: inline-block;
            padding: 2px 10px;
            border-radius: 12px;
            background: var(--primary-bg);
            color: var(--primary);
            font-size: 0.72rem;
            font-weight: 500;
            margin-bottom: 8px;
        }
        .related-card .card-title {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            line-height: 1.45;
            transition: var(--transition);
        }
        .related-card:hover .card-title {
            color: var(--primary);
        }
        .related-card .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-top: 10px;
            font-size: 0.78rem;
            color: var(--text-light);
        }

        /* ===== CTA Section ===== */
        .cta-section {
            padding: 72px 0;
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 50%, var(--primary-light) 100%);
            position: relative;
            overflow: hidden;
            text-align: center;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.08;
            mix-blend-mode: overlay;
        }
        .cta-section .container {
            position: relative;
            z-index: 2;
        }
        .cta-section h2 {
            font-size: 2rem;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 12px;
        }
        .cta-section p {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.85);
            max-width: 600px;
            margin: 0 auto 28px;
            line-height: 1.6;
        }
        .cta-section .cta-buttons {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        .cta-section .btn-cta-primary {
            padding: 14px 34px;
            border-radius: var(--radius);
            background: var(--text-white);
            color: var(--primary);
            font-weight: 700;
            font-size: 1rem;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }
        .cta-section .btn-cta-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 32px rgba(0, 0, 0, 0.25);
            background: var(--secondary);
            color: var(--text-white);
        }
        .cta-section .btn-cta-secondary {
            padding: 14px 34px;
            border-radius: var(--radius);
            background: transparent;
            color: var(--text-white);
            font-weight: 600;
            font-size: 1rem;
            border: 2px solid rgba(255, 255, 255, 0.4);
            cursor: pointer;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }
        .cta-section .btn-cta-secondary:hover {
            border-color: var(--text-white);
            background: rgba(255, 255, 255, 0.1);
            transform: translateY(-3px);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: #1a1a2e;
            color: rgba(255, 255, 255, 0.8);
            padding: 56px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .footer-brand .logo {
            color: var(--text-white);
            margin-bottom: 16px;
            font-size: 1.3rem;
        }
        .footer-brand .logo i {
            color: var(--secondary);
        }
        .footer-brand p {
            font-size: 0.9rem;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.6);
            max-width: 360px;
        }
        .footer-col h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 16px;
            position: relative;
            padding-bottom: 8px;
        }
        .footer-col h4::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 28px;
            height: 3px;
            background: var(--secondary);
            border-radius: 2px;
        }
        .footer-col a {
            display: block;
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.88rem;
            padding: 6px 0;
            transition: var(--transition);
        }
        .footer-col a:hover {
            color: var(--secondary);
            padding-left: 4px;
        }
        .footer-col a i {
            margin-right: 8px;
            width: 16px;
            text-align: center;
        }
        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px 0;
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.4);
            flex-wrap: wrap;
            gap: 8px;
        }

        /* ===== Not Found ===== */
        .not-found-box {
            text-align: center;
            padding: 60px 20px;
        }
        .not-found-box .nf-icon {
            font-size: 4rem;
            color: var(--text-light);
            margin-bottom: 20px;
            opacity: 0.5;
        }
        .not-found-box h2 {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 12px;
        }
        .not-found-box p {
            font-size: 1.05rem;
            color: var(--text-light);
            margin-bottom: 24px;
        }
        .not-found-box .btn-home {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: var(--radius);
            background: var(--primary);
            color: var(--text-white);
            font-weight: 600;
            transition: var(--transition);
        }
        .not-found-box .btn-home:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(108, 62, 245, 0.3);
        }

        /* ===== Empty Related ===== */
        .empty-related {
            text-align: center;
            padding: 32px;
            color: var(--text-light);
            font-size: 0.95rem;
            background: var(--bg-card);
            border-radius: var(--radius);
            border: 1px dashed var(--border);
        }

        /* ===== Not Found Article State ===== */
        .article-not-found {
            padding: 80px 0;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .article-layout {
                grid-template-columns: 1fr;
            }
            .related-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .article-banner h1 {
                font-size: 2.2rem;
            }
        }

        @media (max-width: 768px) {
            :root {
                --nav-height: 64px;
            }
            .container {
                padding: 0 16px;
            }
            .nav-tabs {
                display: none;
            }
            .nav-cta .btn-primary {
                display: none;
            }
            .nav-toggle {
                display: block;
            }
            .mobile-nav {
                display: block;
            }
            .article-banner {
                padding: 110px 0 40px;
                min-height: 240px;
            }
            .article-banner h1 {
                font-size: 1.6rem;
            }
            .article-banner .banner-meta {
                font-size: 0.82rem;
                gap: 12px;
            }
            .article-body {
                padding: 24px;
                border-radius: var(--radius);
            }
            .article-body .content {
                font-size: 0.98rem;
            }
            .related-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .related-section .section-header h2 {
                font-size: 1.3rem;
            }
            .cta-section h2 {
                font-size: 1.5rem;
            }
            .cta-section p {
                font-size: 0.95rem;
            }
            .cta-section .btn-cta-primary,
            .cta-section .btn-cta-secondary {
                padding: 12px 24px;
                font-size: 0.9rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .sidebar-card {
                padding: 18px;
            }
        }

        @media (max-width: 520px) {
            .article-banner h1 {
                font-size: 1.3rem;
            }
            .article-body {
                padding: 16px;
            }
            .related-grid {
                grid-template-columns: 1fr;
            }
            .article-banner .breadcrumb {
                font-size: 0.75rem;
            }
            .article-banner .banner-category {
                font-size: 0.72rem;
                padding: 2px 10px;
            }
            .article-tags .tag-item {
                font-size: 0.72rem;
                padding: 2px 10px;
            }
            .nav-cta .btn-primary {
                display: none;
            }
            .logo {
                font-size: 1.1rem;
            }
            .logo i {
                font-size: 1.2rem;
            }
            .sidebar-list-item .item-thumb {
                width: 48px;
                height: 48px;
            }
            .sidebar-list-item .item-title {
                font-size: 0.8rem;
            }
        }