/* roulang page: index */
:root {
            --primary: #0f172a;
            --primary-light: #1e293b;
            --accent: #3b82f6;
            --accent-hover: #2563eb;
            --accent-glow: #60a5fa;
            --surface: #f8fafc;
            --surface-alt: #f1f5f9;
            --card-bg: #ffffff;
            --text-main: #0f172a;
            --text-soft: #475569;
            --text-muted: #94a3b8;
            --border: #e2e8f0;
            --border-light: #f1f5f9;
            --success: #10b981;
            --warning: #f59e0b;
            --danger: #ef4444;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 1px 2px rgba(0,0,0,0.04);
            --shadow-md: 0 4px 16px rgba(0,0,0,0.07);
            --shadow-lg: 0 12px 40px rgba(0,0,0,0.10);
            --shadow-xl: 0 20px 60px rgba(0,0,0,0.13);
            --transition-fast: 180ms ease;
            --transition-normal: 280ms ease;
        }
        *,*::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:'Inter','PingFang SC','Microsoft YaHei','Helvetica Neue',sans-serif;background:#ffffff;color:var(--text-main);line-height:1.7;overflow-x:hidden}
        img{max-width:100%;height:auto;display:block}
        a{text-decoration:none;color:inherit;transition:color var(--transition-fast)}
        button{cursor:pointer;font-family:inherit;border:none;outline:none}
        input{font-family:inherit;outline:none}
        .container{max-width:1240px;margin:0 auto;padding:0 24px}
        @media(max-width:768px){.container{padding:0 18px}}

        /* 导航 */
        .site-header{position:fixed;top:0;left:0;right:0;z-index:100;background:rgba(255,255,255,0.88);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);border-bottom:1px solid var(--border-light);transition:all var(--transition-normal)}
        .site-header.scrolled{box-shadow:var(--shadow-md)}
        .header-inner{display:flex;align-items:center;justify-content:space-between;height:64px;gap:24px}
        .logo-wrap{display:flex;align-items:center;gap:10px;flex-shrink:0}
        .logo-icon{width:38px;height:38px;background:linear-gradient(135deg,var(--accent),var(--accent-hover));border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;font-size:18px;box-shadow:0 4px 12px rgba(59,130,246,0.28)}
        .logo-text{font-size:17px;font-weight:700;color:var(--text-main);letter-spacing:-0.01em;white-space:nowrap}
        .nav-links{display:flex;align-items:center;gap:6px;list-style:none}
        .nav-links a{display:inline-flex;align-items:center;padding:8px 16px;border-radius:var(--radius-sm);font-size:14.5px;font-weight:500;color:var(--text-soft);transition:all var(--transition-fast);white-space:nowrap}
        .nav-links a:hover{color:var(--accent);background:rgba(59,130,246,0.06)}
        .nav-links a.active{color:var(--accent);background:rgba(59,130,246,0.10);font-weight:600}
        .nav-cta-btn{display:inline-flex;align-items:center;gap:6px;padding:9px 20px;background:var(--accent);color:#fff!important;border-radius:var(--radius-sm);font-size:14px;font-weight:600;transition:all var(--transition-fast);white-space:nowrap;box-shadow:0 2px 8px rgba(59,130,246,0.25)}
        .nav-cta-btn:hover{background:var(--accent-hover);box-shadow:0 6px 20px rgba(59,130,246,0.35);transform:translateY(-1px)}
        .mobile-menu-btn{display:none;width:40px;height:40px;border-radius:var(--radius-sm);background:transparent;align-items:center;justify-content:center;font-size:20px;color:var(--text-main)}
        @media(max-width:860px){
            .nav-links{display:none}
            .nav-cta-btn{display:none}
            .mobile-menu-btn{display:flex}
            .header-inner{height:56px}
        }
        .mobile-drawer{position:fixed;top:0;right:-100%;width:280px;height:100vh;background:#fff;z-index:200;padding:80px 24px 24px;transition:right var(--transition-normal);box-shadow:var(--shadow-xl);display:flex;flex-direction:column;gap:8px}
        .mobile-drawer.open{right:0}
        .mobile-drawer a{display:block;padding:12px 16px;border-radius:var(--radius-sm);font-size:15px;font-weight:500;color:var(--text-soft)}
        .mobile-drawer a.active{color:var(--accent);background:rgba(59,130,246,0.08);font-weight:600}
        .mobile-overlay{position:fixed;inset:0;background:rgba(0,0,0,0.4);z-index:150;display:none}
        .mobile-overlay.show{display:block}

        /* Hero 分屏 */
        .hero-section{display:grid;grid-template-columns:1fr 1fr;min-height:100vh;padding-top:64px;align-items:center;gap:60px}
        @media(max-width:860px){
            .hero-section{grid-template-columns:1fr;min-height:auto;padding-top:90px;padding-bottom:60px;gap:40px;text-align:center}
            .hero-visual{order:-1}
        }
        .hero-content{padding:40px 0}
        .hero-badge{display:inline-flex;align-items:center;gap:8px;background:rgba(59,130,246,0.08);color:var(--accent);padding:6px 16px;border-radius:50px;font-size:13px;font-weight:600;margin-bottom:20px;letter-spacing:0.02em}
        .hero-badge-dot{width:7px;height:7px;border-radius:50%;background:var(--success);animation:pulse-dot 2s infinite}
        @keyframes pulse-dot{0%,100%{opacity:1}50%{opacity:0.35}}
        .hero-content h1{font-size:clamp(2rem,3.8vw,2.9rem);font-weight:800;line-height:1.22;color:var(--text-main);margin-bottom:18px;letter-spacing:-0.02em}
        .hero-content h1 span{color:var(--accent)}
        .hero-desc{font-size:16px;color:var(--text-soft);line-height:1.8;margin-bottom:32px;max-width:480px}
        @media(max-width:860px){.hero-desc{margin:0 auto 32px}}
        .hero-actions{display:flex;gap:14px;flex-wrap:wrap}
        @media(max-width:860px){.hero-actions{justify-content:center}}
        .btn-primary{display:inline-flex;align-items:center;gap:8px;padding:14px 28px;background:var(--accent);color:#fff;border-radius:var(--radius-sm);font-size:15px;font-weight:600;transition:all var(--transition-fast);box-shadow:0 4px 16px rgba(59,130,246,0.30)}
        .btn-primary:hover{background:var(--accent-hover);box-shadow:0 8px 28px rgba(59,130,246,0.40);transform:translateY(-2px)}
        .btn-outline{display:inline-flex;align-items:center;gap:8px;padding:14px 28px;background:transparent;color:var(--text-main);border:2px solid var(--border);border-radius:var(--radius-sm);font-size:15px;font-weight:600;transition:all var(--transition-fast)}
        .btn-outline:hover{border-color:var(--accent);color:var(--accent);background:rgba(59,130,246,0.03)}
        .hero-visual{position:relative;display:flex;align-items:center;justify-content:center}
        .hero-img-wrap{position:relative;width:100%;max-width:520px;border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-xl)}
        .hero-img-wrap img{width:100%;height:auto;object-fit:cover}
        .hero-stat-cards{position:absolute;display:flex;gap:12px;bottom:-16px;left:50%;transform:translateX(-50%);z-index:5}
        .hero-stat-card{background:#fff;border-radius:var(--radius-md);padding:14px 20px;box-shadow:var(--shadow-lg);text-align:center;min-width:90px}
        .hero-stat-card .stat-num{font-size:22px;font-weight:800;color:var(--accent);line-height:1.1}
        .hero-stat-card .stat-label{font-size:11px;color:var(--text-muted);margin-top:3px}
        @media(max-width:860px){.hero-stat-cards{position:relative;bottom:auto;left:auto;transform:none;justify-content:center;margin-top:16px}}

        /* 板块通用 */
        .section{padding:80px 0}
        @media(max-width:768px){.section{padding:50px 0}}
        .section-header{text-align:center;margin-bottom:50px}
        .section-label{display:inline-block;font-size:12.5px;font-weight:700;text-transform:uppercase;letter-spacing:0.08em;color:var(--accent);margin-bottom:10px}
        .section-title{font-size:clamp(1.6rem,2.8vw,2.1rem);font-weight:750;color:var(--text-main);margin-bottom:12px;letter-spacing:-0.01em}
        .section-subtitle{font-size:15px;color:var(--text-soft);max-width:560px;margin:0 auto;line-height:1.7}

        /* 特色卡片网格 */
        .features-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
        @media(max-width:900px){.features-grid{grid-template-columns:repeat(2,1fr)}}
        @media(max-width:560px){.features-grid{grid-template-columns:1fr}}
        .feature-card{background:var(--card-bg);border:1px solid var(--border-light);border-radius:var(--radius-lg);padding:32px 28px;transition:all var(--transition-normal);position:relative;overflow:hidden}
        .feature-card:hover{border-color:var(--accent);box-shadow:var(--shadow-lg);transform:translateY(-3px)}
        .feature-card-icon{width:50px;height:50px;border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;font-size:22px;margin-bottom:18px;background:rgba(59,130,246,0.08);color:var(--accent)}
        .feature-card h3{font-size:17px;font-weight:700;margin-bottom:8px;color:var(--text-main)}
        .feature-card p{font-size:14px;color:var(--text-soft);line-height:1.7}

        /* 仪表盘数据区 */
        .dashboard-band{background:var(--primary);color:#fff;padding:70px 0;position:relative;overflow:hidden}
        .dashboard-band::before{content:'';position:absolute;top:-80px;right:-120px;width:400px;height:400px;border-radius:50%;background:rgba(59,130,246,0.10);pointer-events:none}
        .dashboard-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;position:relative;z-index:1}
        @media(max-width:900px){.dashboard-grid{grid-template-columns:repeat(2,1fr)}}
        @media(max-width:500px){.dashboard-grid{grid-template-columns:1fr}}
        .dash-card{background:rgba(255,255,255,0.06);border:1px solid rgba(255,255,255,0.10);border-radius:var(--radius-lg);padding:28px 24px;text-align:center;backdrop-filter:blur(8px);transition:all var(--transition-normal)}
        .dash-card:hover{background:rgba(255,255,255,0.10);border-color:rgba(255,255,255,0.20)}
        .dash-value{font-size:clamp(2rem,3.5vw,2.8rem);font-weight:800;color:var(--accent-glow);line-height:1.1;margin-bottom:6px}
        .dash-unit{font-size:14px;color:rgba(255,255,255,0.6)}
        .dash-label{font-size:13px;color:rgba(255,255,255,0.7);margin-top:8px}

        /* 资讯列表 */
        .news-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
        @media(max-width:700px){.news-grid{grid-template-columns:1fr}}
        .news-card{display:flex;gap:18px;background:var(--card-bg);border:1px solid var(--border-light);border-radius:var(--radius-lg);padding:20px;transition:all var(--transition-normal);align-items:flex-start}
        .news-card:hover{border-color:var(--accent);box-shadow:var(--shadow-md);transform:translateY(-2px)}
        .news-card-img{width:90px;height:70px;border-radius:var(--radius-sm);overflow:hidden;flex-shrink:0;background:var(--surface-alt)}
        .news-card-img img{width:100%;height:100%;object-fit:cover}
        .news-card-info{flex:1;min-width:0}
        .news-card-tag{display:inline-block;font-size:11px;font-weight:600;color:var(--accent);background:rgba(59,130,246,0.07);padding:3px 10px;border-radius:50px;margin-bottom:6px}
        .news-card h4{font-size:15px;font-weight:650;color:var(--text-main);line-height:1.4;margin-bottom:4px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
        .news-card .news-date{font-size:12px;color:var(--text-muted)}
        .news-empty{text-align:center;padding:40px;color:var(--text-muted);font-size:14px;grid-column:1/-1}

        /* 流程步骤 */
        .steps-list{display:flex;gap:0;position:relative;max-width:900px;margin:0 auto}
        @media(max-width:768px){.steps-list{flex-direction:column;gap:32px}}
        .steps-list::before{content:'';position:absolute;top:40px;left:50px;right:50px;height:2px;background:var(--border);z-index:0}
        @media(max-width:768px){.steps-list::before{display:none}}
        .step-item{flex:1;text-align:center;position:relative;z-index:1;padding:0 16px}
        .step-num{width:60px;height:60px;border-radius:50%;background:var(--accent);color:#fff;font-size:22px;font-weight:800;display:flex;align-items:center;justify-content:center;margin:0 auto 16px;box-shadow:0 6px 20px rgba(59,130,246,0.28);position:relative;z-index:2}
        .step-item h4{font-size:16px;font-weight:700;margin-bottom:6px}
        .step-item p{font-size:13px;color:var(--text-soft);line-height:1.6}

        /* FAQ */
        .faq-list{max-width:760px;margin:0 auto;display:flex;flex-direction:column;gap:12px}
        .faq-item{border:1px solid var(--border);border-radius:var(--radius-md);overflow:hidden;transition:all var(--transition-fast);background:var(--card-bg)}
        .faq-item:hover{border-color:var(--accent)}
        .faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;padding:18px 22px;background:transparent;font-size:15px;font-weight:600;color:var(--text-main);text-align:left;gap:16px;transition:all var(--transition-fast)}
        .faq-q:hover{color:var(--accent)}
        .faq-q i{transition:transform var(--transition-fast);color:var(--text-muted);font-size:14px}
        .faq-a{padding:0 22px 20px;font-size:14px;color:var(--text-soft);line-height:1.75;display:none}
        .faq-item.open .faq-a{display:block}
        .faq-item.open .faq-q i{transform:rotate(180deg);color:var(--accent)}
        .faq-item.open{border-color:var(--accent);box-shadow:0 2px 12px rgba(59,130,246,0.08)}

        /* CTA */
        .cta-section{background:linear-gradient(135deg,var(--primary),var(--primary-light));color:#fff;text-align:center;padding:70px 0;border-radius:var(--radius-xl);margin:0 24px 60px;position:relative;overflow:hidden}
        @media(max-width:768px){.cta-section{margin:0 12px 40px;padding:50px 20px;border-radius:var(--radius-lg)}}
        .cta-section::after{content:'';position:absolute;bottom:-60px;right:-60px;width:260px;height:260px;border-radius:50%;background:rgba(59,130,246,0.15);pointer-events:none}
        .cta-section h2{font-size:clamp(1.5rem,2.5vw,1.9rem);font-weight:750;margin-bottom:12px;position:relative;z-index:1}
        .cta-section p{font-size:15px;color:rgba(255,255,255,0.75);margin-bottom:28px;max-width:500px;margin-left:auto;margin-right:auto;position:relative;z-index:1}
        .cta-section .btn-primary{background:#fff;color:var(--accent);box-shadow:0 6px 24px rgba(255,255,255,0.20)}
        .cta-section .btn-primary:hover{background:#f0f4ff;box-shadow:0 10px 32px rgba(255,255,255,0.28)}

        /* 页脚 */
        .site-footer{background:var(--surface-alt);border-top:1px solid var(--border);padding:50px 0 30px}
        .footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:40px;margin-bottom:36px}
        @media(max-width:768px){.footer-grid{grid-template-columns:1fr;gap:28px}}
        .footer-brand .logo-text{font-size:18px;margin-bottom:8px;display:block}
        .footer-brand p{font-size:13px;color:var(--text-muted);line-height:1.7;max-width:300px}
        .footer-col h4{font-size:14px;font-weight:700;margin-bottom:14px;color:var(--text-main)}
        .footer-col a{display:block;font-size:13px;color:var(--text-soft);padding:5px 0;transition:color var(--transition-fast)}
        .footer-col a:hover{color:var(--accent)}
        .footer-bottom{text-align:center;padding-top:24px;border-top:1px solid var(--border);font-size:12px;color:var(--text-muted)}

        /* 背景图板块 */
        .bg-visual-section{position:relative;padding:80px 0;overflow:hidden}
        .bg-visual-section .bg-layer{position:absolute;inset:0;z-index:0}
        .bg-visual-section .bg-layer img{width:100%;height:100%;object-fit:cover;opacity:0.08}
        .bg-visual-section .bg-content{position:relative;z-index:1}

/* roulang page: category1 */
:root {
            --color-primary: #1a56db;
            --color-primary-dark: #1343b0;
            --color-primary-light: #e8f0fe;
            --color-accent: #10b981;
            --color-dark: #0f172a;
            --color-surface: #ffffff;
            --color-muted: #94a3b8;
            --color-border: #e2e8f0;
            --radius-card: 16px;
            --radius-btn: 10px;
            --shadow-card: 0 1px 3px 0 rgba(0,0,0,0.06), 0 1px 2px -1px rgba(0,0,0,0.06);
            --shadow-card-hover: 0 10px 25px -5px rgba(0,0,0,0.1), 0 8px 10px -6px rgba(0,0,0,0.06);
        }

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

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

        body {
            margin: 0;
            padding: 0;
            font-family: "Inter", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            font-size: 16px;
            line-height: 1.7;
            color: #1e293b;
            background-color: #f8fafc;
            overflow-x: hidden;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color 0.2s ease;
        }

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

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

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

        .container {
            width: 100%;
            max-width: 1200px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* Header & Navigation - Split Hero Linked */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(226, 232, 240, 0.7);
            box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.04);
            transition: all 0.3s ease;
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
            gap: 24px;
        }

        .logo-wrap {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
            z-index: 101;
        }

        .logo-icon {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: linear-gradient(135deg, #1a56db 0%, #2563eb 50%, #3b82f6 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 700;
            font-size: 18px;
            box-shadow: 0 4px 12px rgba(26, 86, 219, 0.3);
        }

        .logo-text {
            font-weight: 700;
            font-size: 18px;
            color: #0f172a;
            letter-spacing: -0.01em;
            white-space: nowrap;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-links a {
            display: inline-flex;
            align-items: center;
            padding: 8px 18px;
            border-radius: 8px;
            font-weight: 500;
            font-size: 15px;
            color: #475569;
            transition: all 0.2s ease;
            white-space: nowrap;
            position: relative;
        }

        .nav-links a:hover {
            color: #1a56db;
            background: #f1f5f9;
        }

        .nav-links a.active {
            color: #1a56db;
            background: #e8f0fe;
            font-weight: 600;
        }

        .nav-cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 20px;
            border-radius: 10px;
            font-weight: 600;
            font-size: 14px;
            background: #1a56db;
            color: #fff !important;
            border: none;
            cursor: pointer;
            transition: all 0.25s ease;
            box-shadow: 0 2px 4px -1px rgba(0, 0, 0, 0.08), 0 1px 2px -1px rgba(0, 0, 0, 0.04);
            white-space: nowrap;
        }

        .nav-cta-btn:hover {
            background: #1343b0;
            box-shadow: 0 6px 16px -4px rgba(26, 86, 219, 0.35), 0 2px 6px -2px rgba(26, 86, 219, 0.15);
            transform: translateY(-1px);
            color: #fff !important;
        }

        /* Mobile nav toggle */
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            cursor: pointer;
            padding: 8px;
            z-index: 101;
            flex-direction: column;
            gap: 5px;
        }

        .nav-toggle span {
            display: block;
            width: 24px;
            height: 2px;
            background: #0f172a;
            border-radius: 2px;
            transition: all 0.3s ease;
        }

        .nav-toggle.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }

        .nav-toggle.active span:nth-child(2) {
            opacity: 0;
        }

        .nav-toggle.active span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }

        /* Hero */
        .category-hero {
            position: relative;
            padding: 80px 0 70px;
            background: linear-gradient(170deg, #f0f5ff 0%, #f8fafc 30%, #ffffff 70%);
            overflow: hidden;
        }

        .category-hero::before {
            content: '';
            position: absolute;
            top: -120px;
            right: -80px;
            width: 500px;
            height: 500px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(26, 86, 219, 0.06) 0%, transparent 70%);
            pointer-events: none;
        }

        .category-hero::after {
            content: '';
            position: absolute;
            bottom: -60px;
            left: -40px;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(16, 185, 129, 0.05) 0%, transparent 70%);
            pointer-events: none;
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
            position: relative;
            z-index: 1;
        }

        .hero-content h1 {
            font-size: 2.8rem;
            font-weight: 800;
            line-height: 1.2;
            color: #0f172a;
            margin: 0 0 18px;
            letter-spacing: -0.02em;
        }

        .hero-content h1 .highlight {
            background: linear-gradient(135deg, #1a56db 0%, #3b82f6 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-content .hero-sub {
            font-size: 1.15rem;
            color: #64748b;
            line-height: 1.7;
            margin-bottom: 28px;
            max-width: 480px;
        }

        .hero-badges {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-bottom: 28px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 16px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 600;
            background: #fff;
            border: 1px solid #e2e8f0;
            color: #475569;
            white-space: nowrap;
        }

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

        .hero-badge .badge-dot.blue {
            background: #1a56db;
        }

        .hero-visual {
            position: relative;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .hero-visual img {
            width: 100%;
            max-width: 480px;
            border-radius: 20px;
            box-shadow: 0 20px 50px -15px rgba(0, 0, 0, 0.18);
            position: relative;
            z-index: 1;
        }

        .hero-visual .glow-ring {
            position: absolute;
            width: 320px;
            height: 320px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(26, 86, 219, 0.12) 0%, transparent 65%);
            z-index: 0;
            pointer-events: none;
        }

        /* Section titles */
        .section-label {
            display: inline-block;
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 0.06em;
            text-transform: uppercase;
            color: #1a56db;
            margin-bottom: 10px;
            padding: 5px 12px;
            background: #e8f0fe;
            border-radius: 6px;
        }

        .section-title {
            font-size: 2rem;
            font-weight: 800;
            color: #0f172a;
            margin: 0 0 12px;
            letter-spacing: -0.01em;
            line-height: 1.25;
        }

        .section-desc {
            font-size: 1.05rem;
            color: #64748b;
            max-width: 600px;
            line-height: 1.7;
        }

        /* Cards */
        .feature-card {
            background: #fff;
            border-radius: 16px;
            padding: 28px 24px;
            border: 1px solid #e2e8f0;
            box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.06), 0 1px 2px -1px rgba(0, 0, 0, 0.06);
            transition: all 0.3s ease;
            position: relative;
            overflow: hidden;
        }

        .feature-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.06);
            border-color: #cbd5e1;
        }

        .feature-card .card-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            margin-bottom: 16px;
            font-weight: 700;
        }

        .feature-card .card-icon.blue {
            background: #e8f0fe;
            color: #1a56db;
        }

        .feature-card .card-icon.green {
            background: #ecfdf5;
            color: #10b981;
        }

        .feature-card .card-icon.amber {
            background: #fffbeb;
            color: #f59e0b;
        }

        .feature-card .card-icon.rose {
            background: #fff1f2;
            color: #ef4444;
        }

        .feature-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: #0f172a;
            margin: 0 0 8px;
        }

        .feature-card p {
            font-size: 0.95rem;
            color: #64748b;
            margin: 0;
            line-height: 1.65;
        }

        /* Step cards */
        .step-card {
            display: flex;
            gap: 20px;
            background: #fff;
            border-radius: 16px;
            padding: 24px 28px;
            border: 1px solid #e2e8f0;
            box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.06), 0 1px 2px -1px rgba(0, 0, 0, 0.06);
            transition: all 0.3s ease;
            align-items: flex-start;
        }

        .step-card:hover {
            box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.06);
            transform: translateY(-2px);
        }

        .step-number {
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: #1a56db;
            color: #fff;
            font-weight: 800;
            font-size: 18px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }

        .step-info h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: #0f172a;
            margin: 0 0 6px;
        }

        .step-info p {
            font-size: 0.93rem;
            color: #64748b;
            margin: 0;
            line-height: 1.65;
        }

        /* FAQ */
        .faq-item {
            background: #fff;
            border-radius: 14px;
            border: 1px solid #e2e8f0;
            padding: 20px 24px;
            transition: all 0.2s ease;
            cursor: pointer;
        }

        .faq-item:hover {
            border-color: #cbd5e1;
            box-shadow: 0 4px 12px -3px rgba(0, 0, 0, 0.06);
        }

        .faq-item h3 {
            font-size: 1.05rem;
            font-weight: 700;
            color: #0f172a;
            margin: 0 0 6px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .faq-item h3 .faq-q {
            color: #1a56db;
            font-weight: 800;
            flex-shrink: 0;
        }

        .faq-item p {
            font-size: 0.95rem;
            color: #64748b;
            margin: 4px 0 0 26px;
            line-height: 1.65;
        }

        /* CTA section */
        .cta-section {
            background: linear-gradient(150deg, #0f172a 0%, #1e293b 40%, #1a3a5c 100%);
            border-radius: 24px;
            padding: 56px 40px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -80px;
            right: -60px;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(26, 86, 219, 0.2) 0%, transparent 65%);
            pointer-events: none;
        }

        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -50px;
            left: -40px;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(16, 185, 129, 0.15) 0%, transparent 65%);
            pointer-events: none;
        }

        .cta-section h2 {
            font-size: 2rem;
            font-weight: 800;
            color: #fff;
            margin: 0 0 12px;
            position: relative;
            z-index: 1;
        }

        .cta-section p {
            font-size: 1.05rem;
            color: #cbd5e1;
            margin: 0 auto 28px;
            max-width: 500px;
            position: relative;
            z-index: 1;
            line-height: 1.6;
        }

        .btn-primary-lg {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 32px;
            border-radius: 12px;
            font-weight: 700;
            font-size: 16px;
            background: #1a56db;
            color: #fff;
            border: none;
            cursor: pointer;
            transition: all 0.25s ease;
            box-shadow: 0 6px 16px -4px rgba(26, 86, 219, 0.4);
            position: relative;
            z-index: 1;
            text-decoration: none;
        }

        .btn-primary-lg:hover {
            background: #2563eb;
            box-shadow: 0 10px 24px -6px rgba(26, 86, 219, 0.5);
            transform: translateY(-2px);
            color: #fff;
        }

        .btn-outline-lg {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 32px;
            border-radius: 12px;
            font-weight: 700;
            font-size: 16px;
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255, 255, 255, 0.35);
            cursor: pointer;
            transition: all 0.25s ease;
            position: relative;
            z-index: 1;
            text-decoration: none;
        }

        .btn-outline-lg:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: rgba(255, 255, 255, 0.6);
            color: #fff;
        }

        /* Footer */
        .site-footer {
            background: #0f172a;
            color: #e2e8f0;
            padding: 48px 0 28px;
            margin-top: 60px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr;
            gap: 36px;
            margin-bottom: 32px;
        }

        .footer-brand .logo-text {
            color: #fff;
            font-size: 18px;
            font-weight: 700;
            display: block;
            margin-bottom: 10px;
        }

        .footer-brand p {
            font-size: 0.9rem;
            color: #94a3b8;
            line-height: 1.65;
            margin: 0;
            max-width: 300px;
        }

        .footer-col h4 {
            font-size: 14px;
            font-weight: 700;
            color: #fff;
            margin: 0 0 14px;
            letter-spacing: 0.03em;
        }

        .footer-col a {
            display: block;
            font-size: 0.9rem;
            color: #94a3b8;
            padding: 5px 0;
            transition: color 0.2s ease;
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 20px;
            text-align: center;
            font-size: 0.85rem;
            color: #64748b;
        }

        .footer-bottom p {
            margin: 0;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .hero-content {
                text-align: center;
            }
            .hero-content .hero-sub {
                max-width: 100%;
                margin-left: auto;
                margin-right: auto;
            }
            .hero-badges {
                justify-content: center;
            }
            .hero-visual img {
                max-width: 360px;
                margin: 0 auto;
            }
            .hero-content h1 {
                font-size: 2.2rem;
            }
            .section-title {
                font-size: 1.65rem;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
            .footer-brand {
                grid-column: 1 / -1;
            }
        }

        @media (max-width: 768px) {
            .header-inner {
                height: 56px;
            }
            .nav-links {
                position: fixed;
                top: 56px;
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                padding: 16px 20px;
                gap: 2px;
                border-bottom: 1px solid #e2e8f0;
                box-shadow: 0 8px 20px -6px rgba(0, 0, 0, 0.1);
                display: none;
                z-index: 99;
            }
            .nav-links.open {
                display: flex;
            }
            .nav-links a {
                width: 100%;
                padding: 12px 16px;
                border-radius: 8px;
            }
            .nav-toggle {
                display: flex;
            }
            .nav-cta-btn {
                display: none;
            }
            .nav-cta-btn-mobile {
                display: inline-flex !important;
                width: 100%;
                justify-content: center;
                margin-top: 8px;
                background: #1a56db;
                color: #fff !important;
                padding: 12px 20px;
                border-radius: 10px;
                font-weight: 600;
            }
            .category-hero {
                padding: 48px 0 40px;
            }
            .hero-content h1 {
                font-size: 1.7rem;
            }
            .hero-content .hero-sub {
                font-size: 1rem;
            }
            .hero-visual img {
                max-width: 280px;
            }
            .hero-badges {
                gap: 6px;
            }
            .hero-badge {
                font-size: 12px;
                padding: 6px 12px;
            }
            .section-title {
                font-size: 1.4rem;
            }
            .section-desc {
                font-size: 0.95rem;
            }
            .cta-section {
                padding: 36px 20px;
                border-radius: 16px;
            }
            .cta-section h2 {
                font-size: 1.5rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

        @media (max-width: 520px) {
            .hero-content h1 {
                font-size: 1.5rem;
            }
            .hero-visual img {
                max-width: 220px;
            }
            .feature-card {
                padding: 20px 16px;
            }
            .step-card {
                flex-direction: column;
                gap: 12px;
                padding: 18px 16px;
            }
            .btn-primary-lg,
            .btn-outline-lg {
                width: 100%;
                justify-content: center;
                padding: 12px 24px;
                font-size: 15px;
            }
            .cta-section .btn-primary-lg,
            .cta-section .btn-outline-lg {
                width: auto;
                margin: 6px;
            }
        }

/* roulang page: article */
:root {
            --brand-600: #1a4ef5;
            --brand-700: #143de0;
            --brand-800: #1632b5;
            --surface-50: #f8fafc;
            --surface-100: #f1f5f9;
            --surface-200: #e2e8f0;
            --surface-700: #334155;
            --surface-800: #1e293b;
            --surface-900: #0f172a;
            --surface-950: #020617;
            --accent-500: #1abe8d;
            --radius-xl: 0.875rem;
            --radius-2xl: 1rem;
            --radius-3xl: 1.25rem;
            --shadow-card: 0 1px 3px 0 rgba(0,0,0,0.06), 0 1px 2px -1px rgba(0,0,0,0.06);
            --shadow-card-hover: 0 10px 25px -5px rgba(0,0,0,0.1), 0 8px 10px -6px rgba(0,0,0,0.06);
            --transition-base: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

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

        body {
            margin: 0;
            padding: 0;
            font-family: "Inter", "SF Pro Display", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
            line-height: 1.7;
            color: #1e293b;
            background-color: #f8fafc;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        /* ===== 导航系统 ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255,255,255,0.88);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid rgba(226,232,240,0.7);
            box-shadow: 0 1px 3px 0 rgba(0,0,0,0.04), 0 1px 2px -1px rgba(0,0,0,0.03);
            transition: box-shadow var(--transition-base);
        }
        .site-header.scrolled {
            box-shadow: 0 4px 20px -6px rgba(0,0,0,0.1);
        }
        .header-inner {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 1.5rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 60px;
        }
        .logo-wrap {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            text-decoration: none;
            flex-shrink: 0;
        }
        .logo-icon {
            width: 34px;
            height: 34px;
            border-radius: 8px;
            background: linear-gradient(135deg, #1a4ef5 0%, #1632b5 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 700;
            font-size: 1.1rem;
        }
        .logo-text {
            font-weight: 700;
            font-size: 1.1rem;
            color: #0f172a;
            letter-spacing: -0.01em;
            white-space: nowrap;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 0.25rem;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .nav-links a {
            display: inline-flex;
            align-items: center;
            padding: 0.5rem 1rem;
            border-radius: 8px;
            text-decoration: none;
            font-size: 0.925rem;
            font-weight: 500;
            color: #475569;
            transition: all var(--transition-base);
            white-space: nowrap;
        }
        .nav-links a:hover {
            color: #1a4ef5;
            background: #eef5ff;
        }
        .nav-links a.active {
            color: #1a4ef5;
            background: #eef5ff;
            font-weight: 600;
        }
        .nav-cta-link {
            background: #1a4ef5 !important;
            color: #fff !important;
            padding: 0.5rem 1.25rem !important;
            border-radius: 8px !important;
            font-weight: 600 !important;
            transition: all var(--transition-base);
        }
        .nav-cta-link:hover {
            background: #143de0 !important;
            box-shadow: 0 4px 16px -4px rgba(26,78,245,0.45);
            color: #fff !important;
        }
        .mobile-menu-btn {
            display: none;
            background: none;
            border: none;
            font-size: 1.35rem;
            color: #475569;
            cursor: pointer;
            padding: 0.4rem;
            border-radius: 8px;
            transition: all var(--transition-base);
        }
        .mobile-menu-btn:hover {
            background: #f1f5f9;
            color: #1e293b;
        }

        /* ===== 面包屑 ===== */
        .breadcrumb-wrap {
            max-width: 1280px;
            margin: 0 auto;
            padding: 1rem 1.5rem 0;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 0.4rem;
            flex-wrap: wrap;
            font-size: 0.85rem;
            color: #64748b;
        }
        .breadcrumb a {
            color: #475569;
            text-decoration: none;
            transition: color var(--transition-base);
        }
        .breadcrumb a:hover {
            color: #1a4ef5;
        }
        .breadcrumb .sep {
            color: #cbd5e1;
            font-size: 0.7rem;
        }
        .breadcrumb .current {
            color: #1e293b;
            font-weight: 500;
        }

        /* ===== 文章Banner ===== */
        .article-banner {
            position: relative;
            background: linear-gradient(160deg, #0f172a 0%, #1e293b 40%, #1632b5 100%);
            min-height: 220px;
            display: flex;
            align-items: center;
            overflow: hidden;
        }
        .article-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            opacity: 0.22;
            mix-blend-mode: overlay;
        }
        .article-banner::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 60px;
            background: linear-gradient(to top, #f8fafc 0%, transparent 100%);
        }
        .article-banner-inner {
            position: relative;
            z-index: 2;
            max-width: 1280px;
            margin: 0 auto;
            padding: 2rem 1.5rem;
            width: 100%;
        }
        .article-banner-category {
            display: inline-block;
            background: rgba(255,255,255,0.15);
            color: #e2e8f0;
            padding: 0.3rem 0.85rem;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 500;
            letter-spacing: 0.02em;
            margin-bottom: 0.75rem;
            backdrop-filter: blur(6px);
        }
        .article-banner h1 {
            color: #fff;
            font-size: 1.85rem;
            font-weight: 700;
            line-height: 1.35;
            letter-spacing: -0.015em;
            margin: 0 0 0.5rem 0;
            max-width: 800px;
        }
        .article-banner-meta {
            display: flex;
            align-items: center;
            gap: 1rem;
            flex-wrap: wrap;
            color: #cbd5e1;
            font-size: 0.85rem;
        }
        .article-banner-meta span {
            display: inline-flex;
            align-items: center;
            gap: 0.3rem;
        }

        /* ===== 主内容区 ===== */
        .main-content-area {
            max-width: 1280px;
            margin: 0 auto;
            padding: 2rem 1.5rem 3rem;
            display: grid;
            grid-template-columns: 1fr 340px;
            gap: 2.5rem;
            align-items: start;
        }

        /* ===== 文章正文区 ===== */
        .article-main {
            background: #fff;
            border-radius: var(--radius-2xl);
            padding: 2.25rem 2.5rem;
            box-shadow: var(--shadow-card);
            border: 1px solid #e2e8f0;
        }
        .article-content {
            font-size: 1rem;
            line-height: 1.85;
            color: #334155;
        }
        .article-content h2 {
            font-size: 1.4rem;
            font-weight: 700;
            color: #0f172a;
            margin: 2rem 0 0.85rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #eef5ff;
            letter-spacing: -0.01em;
        }
        .article-content h3 {
            font-size: 1.15rem;
            font-weight: 600;
            color: #1e293b;
            margin: 1.5rem 0 0.6rem;
        }
        .article-content p {
            margin: 0 0 1rem;
        }
        .article-content img {
            max-width: 100%;
            height: auto;
            border-radius: var(--radius-xl);
            margin: 1.25rem 0;
            box-shadow: 0 2px 8px rgba(0,0,0,0.06);
        }
        .article-content ul,
        .article-content ol {
            margin: 0.75rem 0 1.25rem;
            padding-left: 1.5rem;
        }
        .article-content li {
            margin-bottom: 0.4rem;
        }
        .article-content blockquote {
            border-left: 4px solid #1a4ef5;
            background: #f8fafc;
            padding: 1rem 1.25rem;
            margin: 1.25rem 0;
            border-radius: 0 10px 10px 0;
            color: #475569;
            font-style: italic;
        }
        .article-content a {
            color: #1a4ef5;
            text-decoration: underline;
            text-underline-offset: 2px;
            transition: color var(--transition-base);
        }
        .article-content a:hover {
            color: #143de0;
        }
        .article-content table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.25rem 0;
            font-size: 0.9rem;
        }
        .article-content th,
        .article-content td {
            border: 1px solid #e2e8f0;
            padding: 0.65rem 0.85rem;
            text-align: left;
        }
        .article-content th {
            background: #f8fafc;
            font-weight: 600;
            color: #1e293b;
        }
        .article-content code {
            background: #f1f5f9;
            padding: 0.15rem 0.4rem;
            border-radius: 5px;
            font-size: 0.88em;
            color: #1632b5;
        }
        .article-content pre {
            background: #0f172a;
            color: #e2e8f0;
            padding: 1.25rem;
            border-radius: var(--radius-xl);
            overflow-x: auto;
            margin: 1.25rem 0;
            font-size: 0.88rem;
            line-height: 1.6;
        }
        .article-content pre code {
            background: none;
            color: inherit;
            padding: 0;
            border-radius: 0;
        }

        /* ===== 无内容状态 ===== */
        .article-empty-state {
            text-align: center;
            padding: 3rem 1.5rem;
            color: #64748b;
        }
        .article-empty-state .empty-icon {
            font-size: 3rem;
            color: #cbd5e1;
            margin-bottom: 1rem;
        }
        .article-empty-state h3 {
            font-size: 1.2rem;
            color: #475569;
            margin-bottom: 0.5rem;
        }
        .article-empty-state a {
            display: inline-block;
            margin-top: 1rem;
            padding: 0.65rem 1.5rem;
            background: #1a4ef5;
            color: #fff;
            border-radius: 8px;
            text-decoration: none;
            font-weight: 600;
            transition: all var(--transition-base);
        }
        .article-empty-state a:hover {
            background: #143de0;
            box-shadow: 0 4px 16px -4px rgba(26,78,245,0.45);
        }

        /* ===== 侧边栏 ===== */
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 1.5rem;
            position: sticky;
            top: 80px;
        }
        .sidebar-card {
            background: #fff;
            border-radius: var(--radius-2xl);
            padding: 1.5rem;
            box-shadow: var(--shadow-card);
            border: 1px solid #e2e8f0;
        }
        .sidebar-card h4 {
            font-size: 1rem;
            font-weight: 700;
            color: #0f172a;
            margin: 0 0 1rem;
            letter-spacing: -0.01em;
            padding-bottom: 0.65rem;
            border-bottom: 2px solid #f1f5f9;
        }
        .sidebar-recommend-item {
            display: flex;
            gap: 0.75rem;
            padding: 0.65rem 0;
            border-bottom: 1px solid #f1f5f9;
            text-decoration: none;
            color: inherit;
            transition: all var(--transition-base);
            border-radius: 8px;
            padding: 0.65rem 0.5rem;
            margin: 0 -0.5rem;
        }
        .sidebar-recommend-item:last-child {
            border-bottom: none;
        }
        .sidebar-recommend-item:hover {
            background: #f8fafc;
        }
        .sidebar-recommend-item img {
            width: 70px;
            height: 52px;
            object-fit: cover;
            border-radius: 8px;
            flex-shrink: 0;
        }
        .sidebar-recommend-item .info {
            display: flex;
            flex-direction: column;
            justify-content: center;
            min-width: 0;
        }
        .sidebar-recommend-item .info .title {
            font-size: 0.85rem;
            font-weight: 600;
            color: #1e293b;
            line-height: 1.35;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .sidebar-recommend-item:hover .info .title {
            color: #1a4ef5;
        }
        .sidebar-recommend-item .info .date {
            font-size: 0.73rem;
            color: #94a3b8;
            margin-top: 0.2rem;
        }
        .sidebar-cta {
            background: linear-gradient(135deg, #1a4ef5 0%, #1632b5 100%);
            color: #fff;
            border-radius: var(--radius-2xl);
            padding: 1.5rem;
            text-align: center;
        }
        .sidebar-cta h4 {
            color: #fff;
            font-size: 1.05rem;
            font-weight: 700;
            margin: 0 0 0.5rem;
            border: none;
            padding: 0;
        }
        .sidebar-cta p {
            font-size: 0.85rem;
            color: rgba(255,255,255,0.85);
            margin: 0 0 1rem;
            line-height: 1.5;
        }
        .sidebar-cta a {
            display: inline-block;
            background: #fff;
            color: #1a4ef5;
            padding: 0.6rem 1.5rem;
            border-radius: 8px;
            text-decoration: none;
            font-weight: 600;
            font-size: 0.9rem;
            transition: all var(--transition-base);
        }
        .sidebar-cta a:hover {
            background: #eef5ff;
            box-shadow: 0 6px 20px -4px rgba(0,0,0,0.25);
            transform: translateY(-1px);
        }
        .sidebar-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 0.45rem;
        }
        .sidebar-tags a {
            display: inline-block;
            padding: 0.3rem 0.75rem;
            background: #f1f5f9;
            color: #475569;
            border-radius: 20px;
            font-size: 0.78rem;
            text-decoration: none;
            transition: all var(--transition-base);
            font-weight: 500;
        }
        .sidebar-tags a:hover {
            background: #eef5ff;
            color: #1a4ef5;
        }

        /* ===== 分享区 ===== */
        .share-section {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 1.5rem 2rem;
        }
        .share-inner {
            background: #fff;
            border-radius: var(--radius-2xl);
            padding: 1.5rem 2rem;
            box-shadow: var(--shadow-card);
            border: 1px solid #e2e8f0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 1rem;
        }
        .share-label {
            font-weight: 600;
            color: #1e293b;
            font-size: 0.95rem;
        }
        .share-buttons {
            display: flex;
            gap: 0.5rem;
            flex-wrap: wrap;
        }
        .share-btn {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            padding: 0.5rem 1rem;
            border-radius: 8px;
            font-size: 0.85rem;
            font-weight: 500;
            text-decoration: none;
            transition: all var(--transition-base);
            cursor: pointer;
            border: 1px solid #e2e8f0;
            background: #fff;
            color: #475569;
        }
        .share-btn:hover {
            background: #f8fafc;
            border-color: #cbd5e1;
            box-shadow: 0 2px 8px rgba(0,0,0,0.05);
        }
        .share-btn.copy-btn {
            background: #1a4ef5;
            color: #fff;
            border-color: #1a4ef5;
        }
        .share-btn.copy-btn:hover {
            background: #143de0;
            border-color: #143de0;
        }

        /* ===== 相关推荐区 ===== */
        .related-section {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 1.5rem 3rem;
        }
        .related-section h3 {
            font-size: 1.3rem;
            font-weight: 700;
            color: #0f172a;
            margin: 0 0 1.25rem;
            letter-spacing: -0.01em;
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.25rem;
        }
        .related-card {
            background: #fff;
            border-radius: var(--radius-2xl);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            border: 1px solid #e2e8f0;
            text-decoration: none;
            color: inherit;
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
        }
        .related-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
            border-color: #cbd5e1;
        }
        .related-card img {
            width: 100%;
            height: 150px;
            object-fit: cover;
        }
        .related-card-body {
            padding: 1rem 1.15rem;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .related-card-body .card-tag {
            font-size: 0.73rem;
            color: #1a4ef5;
            font-weight: 600;
            margin-bottom: 0.3rem;
        }
        .related-card-body .card-title {
            font-size: 0.95rem;
            font-weight: 600;
            color: #1e293b;
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 0.5rem;
        }
        .related-card:hover .card-title {
            color: #1a4ef5;
        }
        .related-card-body .card-date {
            font-size: 0.75rem;
            color: #94a3b8;
            margin-top: auto;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: #0f172a;
            color: #cbd5e1;
            padding: 2.5rem 1.5rem 1.5rem;
            margin-top: auto;
        }
        .site-footer .container {
            max-width: 1280px;
            margin: 0 auto;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr;
            gap: 2rem;
            margin-bottom: 1.5rem;
        }
        .footer-brand .logo-text {
            color: #fff;
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 0.5rem;
            display: block;
        }
        .footer-brand p {
            font-size: 0.85rem;
            color: #94a3b8;
            line-height: 1.6;
            margin: 0;
        }
        .footer-col h4 {
            color: #fff;
            font-size: 0.9rem;
            font-weight: 600;
            margin: 0 0 0.75rem;
        }
        .footer-col a {
            display: block;
            color: #94a3b8;
            text-decoration: none;
            font-size: 0.85rem;
            padding: 0.25rem 0;
            transition: color var(--transition-base);
        }
        .footer-col a:hover {
            color: #fff;
        }
        .footer-bottom {
            border-top: 1px solid #1e293b;
            padding-top: 1.25rem;
            text-align: center;
            font-size: 0.8rem;
            color: #64748b;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .main-content-area {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }
            .sidebar {
                position: static;
                top: auto;
                display: grid;
                grid-template-columns: repeat(2, 1fr);
                gap: 1rem;
            }
            .sidebar-cta {
                grid-column: 1 / -1;
            }
            .related-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .article-main {
                padding: 1.5rem;
            }
            .article-banner h1 {
                font-size: 1.5rem;
            }
        }
        @media (max-width: 768px) {
            .header-inner {
                height: 54px;
                padding: 0 1rem;
            }
            .mobile-menu-btn {
                display: block;
            }
            .nav-links {
                position: fixed;
                top: 54px;
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                padding: 0.75rem 1rem;
                gap: 0.15rem;
                border-bottom: 1px solid #e2e8f0;
                box-shadow: 0 8px 24px -8px rgba(0,0,0,0.12);
                display: none;
                z-index: 99;
            }
            .nav-links.open {
                display: flex;
            }
            .nav-links a {
                width: 100%;
                padding: 0.65rem 1rem;
                border-radius: 8px;
            }
            .nav-cta-link {
                text-align: center;
                justify-content: center;
            }
            .sidebar {
                grid-template-columns: 1fr;
            }
            .related-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }
            .share-inner {
                flex-direction: column;
                text-align: center;
            }
            .article-banner {
                min-height: 160px;
            }
            .article-banner h1 {
                font-size: 1.25rem;
            }
            .article-banner-inner {
                padding: 1.5rem 1rem;
            }
            .main-content-area {
                padding: 1.25rem 1rem 2rem;
            }
            .article-main {
                padding: 1.25rem;
                border-radius: var(--radius-xl);
            }
            .breadcrumb-wrap {
                padding: 0.75rem 1rem 0;
            }
        }
        @media (max-width: 520px) {
            .logo-text {
                font-size: 0.95rem;
            }
            .article-banner h1 {
                font-size: 1.1rem;
            }
            .article-content {
                font-size: 0.9rem;
            }
            .article-content h2 {
                font-size: 1.15rem;
            }
            .article-content h3 {
                font-size: 1rem;
            }
        }