/* roulang page: index */
:root{
    --primary:#0b1d3a;--primary-light:#173a5e;--primary-rgb:11,29,58;
    --accent:#c9a227;--accent-hover:#b08d1f;--accent-rgb:201,162,39;
    --bg:#f8f7f4;--bg-alt:#f0ede6;--bg-dark:#0b1d3a;
    --text:#1e1e24;--text-light:#6b7280;--border:#e5e0d8;--white:#fff;
    --radius:16px;--radius-sm:8px;--radius-lg:24px;
    --shadow:0 4px 24px rgba(0,0,0,.06);--shadow-lg:0 16px 48px rgba(0,0,0,.12);
    --transition:all .3s ease;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:'PingFang SC','Hiragino Sans GB','Microsoft YaHei','Helvetica Neue',Arial,sans-serif;background:var(--bg);color:var(--text);line-height:1.7;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{text-decoration:none;color:inherit;transition:var(--transition)}
a:hover{color:var(--accent)}
ul,ol{list-style:none}
button,input,select{font-family:inherit;font-size:inherit}
.container{max-width:1200px;padding-left:20px;padding-right:20px;margin:0 auto}
section{position:relative}
.section-pad{padding:90px 0}
.section-head{text-align:center;max-width:720px;margin:0 auto 50px}
.section-tag{display:inline-block;background:rgba(var(--accent-rgb),.12);color:var(--accent-hover);font-size:.85rem;font-weight:700;letter-spacing:1px;padding:6px 18px;border-radius:30px;margin-bottom:14px}
.section-title{font-size:2rem;font-weight:800;color:var(--primary);line-height:1.3;margin-bottom:14px}
.section-sub{color:var(--text-light);font-size:1.05rem}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 28px;border-radius:40px;font-weight:600;border:none;transition:var(--transition);font-size:.95rem;cursor:pointer}
.btn-accent{background:var(--accent);color:var(--primary)}
.btn-accent:hover{background:var(--accent-hover);color:var(--primary);transform:translateY(-2px);box-shadow:0 8px 24px rgba(var(--accent-rgb),.35)}
.btn-outline{background:transparent;color:var(--white);border:1.5px solid rgba(255,255,255,.5)}
.btn-outline:hover{border-color:var(--white);background:rgba(255,255,255,.1);color:var(--white);transform:translateY(-2px)}
/* Header */
.site-header{position:fixed;top:0;left:0;right:0;z-index:1000;padding:15px 0;transition:var(--transition);background:transparent}
.site-header.scrolled{background:rgba(255,255,255,.96);box-shadow:0 4px 30px rgba(0,0,0,.08);padding:10px 0}
.site-header.scrolled .brand-text{color:var(--primary)}
.site-header.scrolled .nav-links a{color:var(--text)}
.site-header.scrolled .nav-links a:after{background:var(--accent)}
.main-nav{display:flex;align-items:center;justify-content:space-between;gap:20px}
.brand{display:flex;align-items:center;gap:10px}
.brand-icon{width:42px;height:42px;background:var(--accent);border-radius:12px;display:flex;align-items:center;justify-content:center;color:var(--primary);font-size:1.1rem;font-weight:700;flex-shrink:0}
.brand-text{font-size:1.15rem;font-weight:800;color:var(--white);letter-spacing:.3px;white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:30px;margin:0}
.nav-links li a{position:relative;font-weight:600;font-size:.95rem;color:rgba(255,255,255,.9);padding:6px 0}
.nav-links li a:after{content:'';position:absolute;bottom:0;left:0;width:0;height:2px;background:var(--accent);transition:var(--transition)}
.nav-links li a:hover:after,.nav-links li a.active:after{width:100%}
.nav-links li a.active{color:var(--accent)}
.btn-nav{background:var(--accent);color:var(--primary);padding:10px 22px;border-radius:30px;font-weight:700;font-size:.9rem;display:inline-flex;align-items:center;gap:8px;transition:var(--transition);white-space:nowrap}
.btn-nav:hover{background:var(--accent-hover);color:var(--primary);transform:translateY(-2px)}
.nav-toggle{display:none;background:none;border:none;color:var(--white);font-size:1.4rem;cursor:pointer;padding:5px}
.site-header.scrolled .nav-toggle{color:var(--primary)}
/* Hero */
.hero{min-height:92vh;display:flex;align-items:center;position:relative;background:linear-gradient(135deg,rgba(11,29,58,.92) 0%,rgba(11,29,58,.75) 50%,rgba(23,58,94,.7) 100%),url('/assets/images/backpic/back-1.png') center/cover no-repeat;color:var(--white);padding:140px 0 100px;overflow:hidden}
.hero-wave{position:absolute;bottom:-2px;left:0;right:0;line-height:0;z-index:2}
.hero-wave svg{width:100%;height:80px}
.hero-content{max-width:760px;z-index:2}
.hero-badge{display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.12);backdrop-filter:blur(4px);padding:8px 20px;border-radius:30px;font-size:.85rem;letter-spacing:1px;margin-bottom:22px;border:1px solid rgba(255,255,255,.18)}
.hero h1{font-size:3.2rem;font-weight:900;line-height:1.2;margin-bottom:20px;letter-spacing:-1px}
.hero h1 span{color:var(--accent)}
.hero-desc{font-size:1.15rem;color:rgba(255,255,255,.85);margin-bottom:28px;max-width:600px;line-height:1.8}
.hero-btn-group{display:flex;gap:15px;flex-wrap:wrap}
.hero-stats{display:flex;gap:35px;margin-top:45px;flex-wrap:wrap}
.hero-stat{text-align:center}
.hero-stat-num{font-size:1.8rem;font-weight:900;color:var(--accent);line-height:1.2}
.hero-stat-label{font-size:.83rem;color:rgba(255,255,255,.7)}
/* 数据统计 */
.stats-section{background:var(--bg-dark);padding:60px 0;color:var(--white);position:relative;overflow:hidden}
.stats-section:before{content:'';position:absolute;top:-50%;right:-10%;width:400px;height:400px;border-radius:50%;background:rgba(var(--accent-rgb),.08)}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:30px;position:relative;z-index:2}
.stat-card{text-align:center;padding:30px 20px;border-radius:var(--radius);background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.08);transition:var(--transition)}
.stat-card:hover{border-color:rgba(var(--accent-rgb),.4);transform:translateY(-5px)}
.stat-icon{font-size:2rem;color:var(--accent);margin-bottom:12px}
.stat-num{font-size:2.4rem;font-weight:900;color:var(--white);line-height:1.2}
.stat-label{color:rgba(255,255,255,.7);font-size:.95rem;margin-top:5px}
/* 核心介绍 */
.about-section{background:var(--bg)}
.about-wrap{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.about-img{border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-lg);position:relative}
.about-img img{width:100%;height:100%;object-fit:cover;min-height:420px}
.about-img:after{content:'';position:absolute;inset:0;background:linear-gradient(to top,rgba(11,29,58,.2),transparent)}
.about-tag{color:var(--accent-hover);font-weight:700;letter-spacing:1px;font-size:.9rem;margin-bottom:10px}
.about-title{font-size:2.2rem;font-weight:800;color:var(--primary);line-height:1.3;margin-bottom:20px}
.about-text{color:var(--text-light);margin-bottom:16px;line-height:1.9}
.about-list{margin-top:25px}
.about-list li{display:flex;align-items:flex-start;gap:12px;margin-bottom:14px;font-weight:500}
.about-list li i{color:var(--accent);margin-top:5px}
/* 分类入口 */
.cat-section{background:var(--bg-alt)}
.cat-card{background:var(--white);border-radius:var(--radius-lg);padding:40px;text-align:center;box-shadow:var(--shadow);border:1px solid var(--border);transition:var(--transition);position:relative;overflow:hidden}
.cat-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-lg);border-color:rgba(var(--accent-rgb),.4)}
.cat-card:before{content:'';position:absolute;top:0;left:0;right:0;height:4px;background:linear-gradient(90deg,var(--accent),#e8c84a)}
.cat-icon{width:70px;height:70px;border-radius:20px;background:rgba(var(--accent-rgb),.12);display:flex;align-items:center;justify-content:center;margin:0 auto 20px;font-size:1.8rem;color:var(--accent-hover)}
.cat-card h3{font-size:1.4rem;font-weight:700;color:var(--primary);margin-bottom:12px}
.cat-card p{color:var(--text-light);margin-bottom:20px;line-height:1.8}
.cat-link{color:var(--accent-hover);font-weight:700;font-size:.95rem;display:inline-flex;align-items:center;gap:6px}
/* 资讯列表 */
.news-section{background:var(--white)}
.news-card{background:var(--bg);border-radius:var(--radius);padding:28px;height:100%;border:1px solid var(--border);transition:var(--transition);display:flex;flex-direction:column}
.news-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg);border-color:rgba(var(--accent-rgb),.3)}
.badge-cat{display:inline-block;background:rgba(var(--accent-rgb),.12);color:var(--accent-hover);font-size:.75rem;font-weight:700;padding:4px 14px;border-radius:20px;margin-bottom:14px}
.news-card h3{font-size:1.1rem;font-weight:700;line-height:1.5;margin-bottom:10px;flex:1}
.news-card h3 a{color:var(--text)}
.news-card h3 a:hover{color:var(--accent-hover)}
.news-card p{font-size:.9rem;color:var(--text-light);margin-bottom:18px;line-height:1.7}
.news-meta{display:flex;align-items:center;justify-content:space-between;font-size:.82rem;color:var(--text-light);border-top:1px solid var(--border);padding-top:14px}
.news-meta a{color:var(--accent-hover);font-weight:600;display:inline-flex;align-items:center;gap:5px}
.empty-tip{background:var(--bg-alt);border:1px dashed var(--border);border-radius:var(--radius);padding:50px;text-align:center;color:var(--text-light);font-size:1rem}
/* 特色亮点 */
.feature-section{background:var(--bg-dark);color:var(--white)}
.feature-section .section-title{color:var(--white)}
.feature-section .section-sub{color:rgba(255,255,255,.7)}
.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:30px}
.feature-card{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.1);border-radius:var(--radius-lg);overflow:hidden;transition:var(--transition)}
.feature-card:hover{transform:translateY(-6px);border-color:rgba(var(--accent-rgb),.5);box-shadow:0 16px 40px rgba(0,0,0,.3)}
.feature-img{position:relative;overflow:hidden;height:200px}
.feature-img img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.feature-card:hover .feature-img img{transform:scale(1.05)}
.feature-body{padding:25px}
.feature-body h3{font-size:1.15rem;font-weight:700;margin-bottom:10px;color:var(--white)}
.feature-body p{font-size:.9rem;color:rgba(255,255,255,.7);line-height:1.7}
/* 流程 */
.process-section{background:var(--bg-alt)}
.process-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:30px}
.process-step{text-align:center;padding:30px 20px;position:relative}
.process-num{width:56px;height:56px;border-radius:50%;background:var(--accent);color:var(--primary);font-weight:900;font-size:1.3rem;display:flex;align-items:center;justify-content:center;margin:0 auto 20px;box-shadow:0 6px 20px rgba(var(--accent-rgb),.3)}
.process-step h4{font-weight:700;color:var(--primary);margin-bottom:10px}
.process-step p{font-size:.88rem;color:var(--text-light);line-height:1.7}
.process-step:not(:last-child):before{content:'';position:absolute;top:45px;right:-15px;width:30px;height:2px;background:var(--border);display:none}
/* FAQ */
.faq-section{background:var(--white)}
.faq-wrap{max-width:820px;margin:0 auto}
.faq-item{background:var(--bg);border:1px solid var(--border);border-radius:var(--radius);margin-bottom:14px;overflow:hidden}
.faq-q{display:flex;align-items:center;justify-content:space-between;padding:20px 25px;cursor:pointer;font-weight:600;color:var(--primary);font-size:1rem;transition:var(--transition)}
.faq-q i{color:var(--accent);transition:transform .3s}
.faq-item.open .faq-q i{transform:rotate(180deg)}
.faq-q:hover{background:rgba(var(--accent-rgb),.06)}
.faq-a{display:none;padding:0 25px 20px;color:var(--text-light);line-height:1.8;font-size:.95rem}
.faq-item.open .faq-a{display:block}
/* CTA */
.cta-section{background:linear-gradient(135deg,var(--primary) 0%,var(--primary-light) 100%);color:var(--white);padding:80px 0;text-align:center;position:relative;overflow:hidden}
.cta-section:before{content:'';position:absolute;top:-30%;left:-10%;width:500px;height:500px;border-radius:50%;background:rgba(var(--accent-rgb),.1)}
.cta-section:after{content:'';position:absolute;bottom:-40%;right:-5%;width:400px;height:400px;border-radius:50%;background:rgba(var(--accent-rgb),.06)}
.cta-content{position:relative;z-index:2}
.cta-content h2{font-size:2.2rem;font-weight:800;margin-bottom:15px}
.cta-content p{color:rgba(255,255,255,.8);max-width:560px;margin:0 auto 30px;line-height:1.8}
/* Footer */
.site-footer{background:var(--bg-dark);color:rgba(255,255,255,.7);padding:60px 0 0}
.footer-top{display:grid;grid-template-columns:2fr 1fr 1fr;gap:40px;padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.1)}
.footer-brand-name{font-size:1.2rem;font-weight:800;color:var(--white);display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-desc{font-size:.9rem;line-height:1.8;max-width:380px}
.footer-col h4{color:var(--white);font-size:1rem;margin-bottom:16px;font-weight:700}
.footer-col ul li{margin-bottom:8px}
.footer-col ul li a{font-size:.9rem;color:rgba(255,255,255,.65)}
.footer-col ul li a:hover{color:var(--accent)}
.footer-bottom{padding:20px 0;text-align:center;font-size:.82rem;color:rgba(255,255,255,.4);border-top:1px solid rgba(255,255,255,.06)}
.footer-bottom p{margin-bottom:4px}
/* 响应式 */
@media (max-width:1024px){
    .stats-grid{grid-template-columns:repeat(2,1fr)}
    .feature-grid{grid-template-columns:repeat(2,1fr)}
    .process-grid{grid-template-columns:repeat(2,1fr)}
    .footer-top{grid-template-columns:1fr 1fr}
}
@media (max-width:768px){
    .section-pad{padding:60px 0}
    .section-title{font-size:1.5rem}
    .hero h1{font-size:2.2rem}
    .hero-desc{font-size:1rem}
    .about-wrap{grid-template-columns:1fr;gap:30px}
    .nav-links{display:none;position:absolute;top:100%;left:0;right:0;background:var(--primary);flex-direction:column;padding:20px;gap:15px;max-height:80vh;overflow-y:auto}
    .nav-links.open{display:flex}
    .nav-links li a{color:var(--white)}
    .nav-toggle{display:block}
    .btn-nav{display:none}
    .stats-grid{grid-template-columns:repeat(2,1fr)}
    .feature-grid{grid-template-columns:1fr}
    .process-grid{grid-template-columns:1fr 1fr;gap:20px}
    .process-step:not(:last-child):before{display:none}
    .footer-top{grid-template-columns:1fr}
    .hero-stats{gap:20px}
    .hero-btn-group{flex-direction:column;align-items:flex-start}
}
@media (max-width:520px){
    .hero h1{font-size:1.7rem}
    .stats-grid{grid-template-columns:1fr}
    .process-grid{grid-template-columns:1fr}
    .hero-stats{flex-direction:column;gap:15px}
    .brand-text{font-size:1rem}
    .section-title{font-size:1.3rem}
    .cat-card{padding:30px 20px}
    .news-card{padding:20px}
}

/* roulang page: category1 */
:root {
            --primary: #c19a5b;
            --primary-dark: #a67c42;
            --primary-light: #f0e5d2;
            --secondary: #1b2a41;
            --secondary-soft: #253652;
            --accent: #e0705a;
            --accent-soft: #fbe8e4;
            --bg: #faf8f5;
            --bg-soft: #f2ede4;
            --bg-deep: #0f1a28;
            --text: #2b2b2b;
            --muted: #78716a;
            --border: #e6ddd0;
            --white: #ffffff;
            --radius: 18px;
            --radius-sm: 12px;
            --radius-lg: 26px;
            --shadow: 0 14px 38px rgba(31, 24, 10, .08);
            --shadow-sm: 0 5px 18px rgba(31, 24, 10, .06);
            --shadow-primary: 0 10px 26px rgba(193, 154, 91, .32);
            --transition: all .28s cubic-bezier(.4, 0, .2, 1);
            --font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.75;
            color: var(--text);
            background-color: var(--bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

        a:hover {
            color: var(--primary);
        }

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

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

        .container {
            max-width: 1240px;
            padding-left: 20px;
            padding-right: 20px;
        }

        /* ===== 导航 ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1040;
            background: rgba(255, 255, 255, .92);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border);
            transition: var(--transition);
        }

        .site-header.scrolled {
            box-shadow: 0 6px 28px rgba(27, 42, 65, .08);
        }

        .main-nav {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 76px;
            gap: 20px;
        }

        .brand {
            display: flex;
            align-items: center;
            gap: 11px;
            flex-shrink: 0;
        }

        .brand-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 42px;
            height: 42px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            font-size: 18px;
            box-shadow: 0 6px 16px rgba(193, 154, 91, .35);
        }

        .brand-text {
            font-size: 18px;
            font-weight: 800;
            letter-spacing: .5px;
            color: var(--secondary);
            white-space: nowrap;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-links li a {
            display: inline-block;
            padding: 9px 20px;
            border-radius: 999px;
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
            transition: var(--transition);
        }

        .nav-links li a:hover {
            color: var(--primary-dark);
            background: var(--primary-light);
        }

        .nav-links li a.active {
            color: #fff;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            box-shadow: var(--shadow-primary);
        }

        .btn-nav {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 11px 24px;
            border-radius: 999px;
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            background: linear-gradient(135deg, var(--secondary), var(--secondary-soft));
            box-shadow: 0 8px 22px rgba(27, 42, 65, .25);
            transition: var(--transition);
            white-space: nowrap;
            border: none;
        }

        .btn-nav:hover {
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 12px 28px rgba(27, 42, 65, .32);
        }

        .btn-nav i {
            font-size: 13px;
            transition: transform .28s ease;
        }

        .btn-nav:hover i {
            transform: translateX(4px);
        }

        .nav-toggle {
            display: none;
            background: transparent;
            color: var(--secondary);
            font-size: 22px;
            padding: 8px 10px;
            border-radius: 8px;
            cursor: pointer;
        }

        /* ===== Hero Banner ===== */
        .category-hero {
            position: relative;
            padding: 120px 0 96px;
            background: linear-gradient(135deg, rgba(15, 26, 40, .88), rgba(27, 42, 65, .78)), url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            color: #fff;
            overflow: hidden;
        }

        .category-hero::after {
            content: '';
            position: absolute;
            right: -80px;
            bottom: -80px;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: rgba(193, 154, 91, .18);
            filter: blur(40px);
            pointer-events: none;
        }

        .category-hero .container {
            position: relative;
            z-index: 2;
        }

        .crumb {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 7px 16px;
            border-radius: 999px;
            background: rgba(255, 255, 255, .12);
            border: 1px solid rgba(255, 255, 255, .16);
            font-size: 13px;
            color: rgba(255, 255, 255, .85);
            margin-bottom: 24px;
            backdrop-filter: blur(6px);
        }

        .crumb a {
            color: rgba(255, 255, 255, .75);
        }

        .crumb a:hover {
            color: #fff;
        }

        .crumb .sep {
            font-size: 10px;
            opacity: .6;
        }

        .category-hero h1 {
            font-size: 48px;
            font-weight: 900;
            line-height: 1.15;
            letter-spacing: 1px;
            margin-bottom: 18px;
            max-width: 720px;
            text-shadow: 0 4px 20px rgba(0, 0, 0, .2);
        }

        .category-hero .hero-lead {
            font-size: 17px;
            color: rgba(255, 255, 255, .82);
            max-width: 620px;
            margin-bottom: 32px;
            line-height: 1.8;
        }

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

        .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            padding: 8px 16px;
            border-radius: 999px;
            background: rgba(255, 255, 255, .14);
            border: 1px solid rgba(255, 255, 255, .18);
            font-size: 13px;
            font-weight: 600;
            color: rgba(255, 255, 255, .92);
        }

        .hero-tag i {
            color: var(--primary);
        }

        /* ===== 板块通用 ===== */
        .section {
            padding: 96px 0;
        }

        .section-soft {
            background: var(--bg-soft);
        }

        .section-deep {
            background: var(--bg-deep);
            color: #fff;
        }

        .section-head {
            max-width: 720px;
            margin-bottom: 52px;
        }

        .section-head.center {
            margin-left: auto;
            margin-right: auto;
            text-align: center;
        }

        .section-eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 2px;
            text-transform: uppercase;
            color: var(--primary-dark);
            margin-bottom: 14px;
        }

        .section-eyebrow::before {
            content: '';
            width: 22px;
            height: 3px;
            border-radius: 3px;
            background: var(--primary);
        }

        .section-head.center .section-eyebrow::after {
            content: '';
            width: 22px;
            height: 3px;
            border-radius: 3px;
            background: var(--primary);
        }

        .section-title {
            font-size: 36px;
            font-weight: 800;
            line-height: 1.22;
            color: var(--secondary);
            margin-bottom: 16px;
            letter-spacing: .5px;
        }

        .section-deep .section-title {
            color: #fff;
        }

        .section-sub {
            font-size: 16px;
            color: var(--muted);
            line-height: 1.8;
        }

        .section-deep .section-sub {
            color: rgba(255, 255, 255, .72);
        }

        /* ===== 导读 ===== */
        .intro-wrap {
            display: grid;
            grid-template-columns: 1.15fr .85fr;
            gap: 56px;
            align-items: center;
        }

        .intro-text h2 {
            font-size: 30px;
            font-weight: 800;
            color: var(--secondary);
            margin-bottom: 18px;
            line-height: 1.3;
        }

        .intro-text p {
            color: var(--muted);
            margin-bottom: 18px;
            line-height: 1.85;
            font-size: 16px;
        }

        .intro-points {
            list-style: none;
            margin-top: 22px;
            display: grid;
            gap: 14px;
        }

        .intro-points li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 14px 18px;
            background: var(--white);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            font-weight: 500;
            font-size: 15px;
        }

        .intro-points li i {
            color: var(--primary);
            font-size: 16px;
            margin-top: 3px;
        }

        .intro-image {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow);
            min-height: 360px;
        }

        .intro-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .6s ease;
        }

        .intro-image:hover img {
            transform: scale(1.04);
        }

        .intro-image .img-badge {
            position: absolute;
            bottom: 18px;
            left: 18px;
            padding: 8px 16px;
            border-radius: 999px;
            background: rgba(255, 255, 255, .9);
            color: var(--secondary);
            font-size: 13px;
            font-weight: 700;
            backdrop-filter: blur(8px);
            box-shadow: var(--shadow-sm);
        }

        /* ===== 卡片区 ===== */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .guide-card {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }

        .guide-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow);
            border-color: rgba(193, 154, 91, .4);
        }

        .guide-card .card-media {
            position: relative;
            height: 220px;
            overflow: hidden;
        }

        .guide-card .card-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .55s ease;
        }

        .guide-card:hover .card-media img {
            transform: scale(1.06);
        }

        .card-media .card-tag {
            position: absolute;
            top: 14px;
            left: 14px;
            padding: 5px 14px;
            border-radius: 999px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            font-size: 12px;
            font-weight: 700;
            letter-spacing: .5px;
            box-shadow: 0 4px 12px rgba(193, 154, 91, .4);
        }

        .card-body {
            padding: 26px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .card-body h3 {
            font-size: 19px;
            font-weight: 700;
            color: var(--secondary);
            margin-bottom: 10px;
            line-height: 1.4;
        }

        .card-body h3 a {
            color: inherit;
        }

        .card-body h3 a:hover {
            color: var(--primary-dark);
        }

        .card-body p {
            color: var(--muted);
            font-size: 14.5px;
            line-height: 1.8;
            margin-bottom: 16px;
            flex: 1;
        }

        .card-link {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            font-size: 14px;
            font-weight: 700;
            color: var(--primary-dark);
            margin-top: auto;
        }

        .card-link i {
            transition: transform .28s ease;
            font-size: 12px;
        }

        .card-link:hover {
            color: var(--primary);
        }

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

        /* ===== 热门排行 ===== */
        .rank-row {
            display: grid;
            grid-template-columns: 1.1fr .9fr;
            gap: 50px;
            align-items: center;
        }

        .rank-list {
            list-style: none;
            display: grid;
            gap: 14px;
        }

        .rank-list li {
            display: flex;
            align-items: center;
            gap: 18px;
            padding: 20px 22px;
            background: var(--white);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }

        .rank-list li:hover {
            transform: translateX(6px);
            border-color: rgba(193, 154, 91, .42);
            box-shadow: var(--shadow);
        }

        .rank-num {
            flex-shrink: 0;
            width: 42px;
            height: 42px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            font-weight: 800;
            background: var(--primary-light);
            color: var(--primary-dark);
        }

        .rank-list li:nth-child(1) .rank-num {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            box-shadow: var(--shadow-primary);
        }

        .rank-info {
            flex: 1;
        }

        .rank-info h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--secondary);
            margin-bottom: 3px;
        }

        .rank-info p {
            font-size: 13.5px;
            color: var(--muted);
            margin: 0;
        }

        .rank-pop {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            font-size: 13px;
            font-weight: 700;
            color: var(--accent);
            white-space: nowrap;
        }

        .rank-visual {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow);
            position: relative;
            min-height: 400px;
        }

        .rank-visual img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            min-height: 400px;
        }

        .rank-visual .visual-caption {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            padding: 32px 26px 22px;
            background: linear-gradient(transparent, rgba(15, 26, 40, .82));
            color: #fff;
        }

        .rank-visual .visual-caption h4 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 4px;
        }

        .rank-visual .visual-caption p {
            font-size: 14px;
            color: rgba(255, 255, 255, .78);
            margin: 0;
        }

        /* ===== 流程步骤 ===== */
        .steps-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 26px;
            counter-reset: step;
        }

        .step-item {
            position: relative;
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 34px 28px;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            counter-increment: step;
        }

        .step-item:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow);
            border-color: rgba(193, 154, 91, .38);
        }

        .step-item::before {
            content: counter(step, decimal-leading-zero);
            position: absolute;
            top: 24px;
            right: 24px;
            font-size: 34px;
            font-weight: 900;
            line-height: 1;
            color: rgba(193, 154, 91, .22);
            letter-spacing: -1px;
        }

        .step-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 54px;
            height: 54px;
            border-radius: 16px;
            background: linear-gradient(135deg, var(--primary-light), #f7eedc);
            color: var(--primary-dark);
            font-size: 22px;
            margin-bottom: 22px;
            transition: var(--transition);
        }

        .step-item:hover .step-icon {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            box-shadow: var(--shadow-primary);
        }

        .step-item h4 {
            font-size: 17px;
            font-weight: 700;
            color: var(--secondary);
            margin-bottom: 10px;
        }

        .step-item p {
            font-size: 14px;
            color: var(--muted);
            line-height: 1.75;
            margin: 0;
        }

        /* ===== FAQ ===== */
        .faq-wrap {
            max-width: 860px;
            margin: 0 auto;
            display: grid;
            gap: 16px;
        }

        .faq-item {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            overflow: hidden;
        }

        .faq-item:hover {
            border-color: rgba(193, 154, 91, .36);
            box-shadow: var(--shadow);
        }

        .faq-q {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            text-align: left;
            padding: 22px 26px;
            background: transparent;
            font-size: 16px;
            font-weight: 600;
            color: var(--secondary);
            cursor: pointer;
        }

        .faq-q .faq-icon {
            flex-shrink: 0;
            width: 32px;
            height: 32px;
            border-radius: 50%;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--primary-light);
            color: var(--primary-dark);
            font-size: 14px;
            transition: var(--transition);
        }

        .faq-item.open .faq-icon {
            background: var(--primary);
            color: #fff;
            transform: rotate(180deg);
        }

        .faq-q .faq-icon i {
            pointer-events: none;
        }

        .faq-a {
            max-height: 0;
            overflow: hidden;
            transition: max-height .36s ease;
        }

        .faq-a-inner {
            padding: 0 26px 24px 26px;
            color: var(--muted);
            font-size: 15px;
            line-height: 1.85;
            border-top: 1px solid var(--border);
            padding-top: 18px;
            margin: 0 26px 0 26px;
            padding-left: 0;
            padding-right: 0;
        }

        .faq-a-inner p {
            margin-bottom: 8px;
        }

        .faq-a-inner p:last-child {
            margin-bottom: 0;
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: 90px 0;
            background: linear-gradient(135deg, rgba(15, 26, 40, .92), rgba(27, 42, 65, .88)), url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
            color: #fff;
            text-align: center;
            border-radius: 0;
        }

        .cta-section .container {
            position: relative;
            z-index: 2;
        }

        .cta-section h2 {
            font-size: 34px;
            font-weight: 800;
            margin-bottom: 14px;
            letter-spacing: 1px;
        }

        .cta-section p {
            font-size: 16px;
            color: rgba(255, 255, 255, .78);
            max-width: 560px;
            margin: 0 auto 32px;
            line-height: 1.8;
        }

        .btn-lg-primary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 16px 38px;
            border-radius: 999px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            font-size: 16px;
            font-weight: 700;
            box-shadow: var(--shadow-primary);
            transition: var(--transition);
        }

        .btn-lg-primary:hover {
            color: #fff;
            transform: translateY(-3px) scale(1.02);
            box-shadow: 0 16px 36px rgba(193, 154, 91, .45);
        }

        .btn-lg-primary i {
            font-size: 14px;
            transition: transform .28s ease;
        }

        .btn-lg-primary:hover i {
            transform: translateX(5px);
        }

        .cta-note {
            margin-top: 18px;
            font-size: 13px;
            color: rgba(255, 255, 255, .55);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-deep);
            color: rgba(255, 255, 255, .72);
            padding: 70px 0 28px;
        }

        .footer-top {
            display: grid;
            grid-template-columns: 2fr 1fr 1.2fr;
            gap: 48px;
            padding-bottom: 48px;
            border-bottom: 1px solid rgba(255, 255, 255, .08);
        }

        .footer-brand-name {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 19px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 14px;
        }

        .footer-desc {
            font-size: 14px;
            color: rgba(255, 255, 255, .6);
            line-height: 1.85;
            max-width: 380px;
            margin: 0;
        }

        .footer-col h4 {
            color: #fff;
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 18px;
        }

        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
            display: grid;
            gap: 11px;
        }

        .footer-col ul li a {
            font-size: 14px;
            color: rgba(255, 255, 255, .62);
            transition: var(--transition);
        }

        .footer-col ul li a:hover {
            color: var(--primary);
            padding-left: 4px;
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding-top: 28px;
            flex-wrap: wrap;
        }

        .footer-bottom p {
            font-size: 13px;
            color: rgba(255, 255, 255, .42);
            margin: 0;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .card-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 22px;
            }

            .intro-wrap {
                grid-template-columns: 1fr;
                gap: 36px;
            }

            .rank-row {
                grid-template-columns: 1fr;
                gap: 36px;
            }

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

            .category-hero {
                padding: 96px 0 72px;
            }

            .category-hero h1 {
                font-size: 40px;
            }

            .section {
                padding: 76px 0;
            }

            .section-title {
                font-size: 30px;
            }
        }

        @media (max-width: 768px) {
            .main-nav {
                height: 66px;
            }

            .nav-links {
                position: fixed;
                top: 66px;
                left: 0;
                right: 0;
                background: var(--white);
                flex-direction: column;
                align-items: flex-start;
                gap: 4px;
                padding: 16px 20px 20px;
                border-bottom: 1px solid var(--border);
                box-shadow: 0 20px 40px rgba(27, 42, 65, .12);
                transform: translateY(-16px);
                opacity: 0;
                visibility: hidden;
                transition: var(--transition);
                z-index: 1030;
                border-radius: 0 0 18px 18px;
            }

            .nav-links.show {
                transform: translateY(0);
                opacity: 1;
                visibility: visible;
            }

            .nav-links li {
                width: 100%;
            }

            .nav-links li a {
                display: block;
                width: 100%;
                padding: 12px 16px;
                border-radius: 10px;
                font-size: 15px;
            }

            .btn-nav {
                display: none;
            }

            .nav-toggle {
                display: block;
            }

            .brand-text {
                font-size: 15px;
            }

            .brand-icon {
                width: 36px;
                height: 36px;
                font-size: 15px;
                border-radius: 10px;
            }

            .category-hero {
                padding: 64px 0 52px;
            }

            .category-hero h1 {
                font-size: 30px;
            }

            .category-hero .hero-lead {
                font-size: 15px;
            }

            .hero-tag {
                font-size: 12px;
                padding: 6px 12px;
            }

            .section {
                padding: 56px 0;
            }

            .section-title {
                font-size: 25px;
            }

            .section-eyebrow {
                font-size: 12px;
            }

            .card-grid {
                grid-template-columns: 1fr;
            }

            .guide-card .card-media {
                height: 200px;
            }

            .steps-row {
                grid-template-columns: 1fr;
            }

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

            .rank-visual,
            .rank-visual img {
                min-height: 280px;
            }

            .cta-section {
                padding: 60px 0;
            }

            .cta-section h2 {
                font-size: 26px;
            }

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

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

        @media (max-width: 520px) {
            .category-hero h1 {
                font-size: 26px;
                line-height: 1.25;
            }

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

            .hero-meta {
                gap: 8px;
            }

            .hero-tag {
                padding: 5px 10px;
                font-size: 11px;
            }

            .section {
                padding: 44px 0;
            }

            .section-title {
                font-size: 22px;
            }

            .card-body {
                padding: 20px 18px;
            }

            .card-body h3 {
                font-size: 17px;
            }

            .rank-list li {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
                padding: 16px;
            }

            .rank-num {
                width: 36px;
                height: 36px;
                font-size: 14px;
            }

            .faq-q {
                padding: 17px 18px;
                font-size: 14px;
            }

            .faq-a-inner {
                margin: 0 18px;
                padding: 14px 0 18px 0;
                font-size: 14px;
            }

            .btn-lg-primary {
                padding: 14px 28px;
                font-size: 14px;
            }

            .steps-row {
                gap: 18px;
            }

            .step-item {
                padding: 26px 20px;
            }

            .step-item::before {
                font-size: 28px;
                top: 18px;
                right: 18px;
            }

            .step-icon {
                width: 46px;
                height: 46px;
                font-size: 18px;
            }
        }

        @media (max-width: 360px) {
            .brand-text {
                font-size: 13px;
                letter-spacing: 0;
            }

            .brand-icon {
                width: 32px;
                height: 32px;
                font-size: 13px;
            }

            .category-hero h1 {
                font-size: 23px;
            }
        }

        /* ===== 焦点态 ===== */
        a:focus-visible,
        button:focus-visible {
            outline: 3px solid rgba(193, 154, 91, .55);
            outline-offset: 3px;
            border-radius: 6px;
        }

        .btn-nav:active,
        .btn-lg-primary:active {
            transform: scale(.97);
        }

/* roulang page: article */
:root {
    --primary: #0f1c2e;
    --primary-light: #1a2c42;
    --primary-dark: #0a1420;
    --accent: #c9a227;
    --accent-hover: #e0b83a;
    --accent-soft: rgba(201, 162, 39, 0.12);
    --bg-body: #f4f5f7;
    --bg-card: #ffffff;
    --bg-dark: #0b1520;
    --text-main: #1a2332;
    --text-weak: #5f6b7a;
    --text-white: #ffffff;
    --border-color: #e3e8ef;
    --radius-lg: 18px;
    --radius-md: 12px;
    --radius-sm: 8px;
    --shadow-card: 0 4px 20px rgba(15, 28, 46, 0.06);
    --shadow-hover: 0 12px 35px rgba(15, 28, 46, 0.12);
    --transition: all .3s ease;
    --font-main: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Helvetica Neue", Arial, sans-serif;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    font-family: var(--font-main);
    color: var(--text-main);
    background-color: var(--bg-body);
    line-height: 1.75;
    -webkit-font-smoothing: antialiased;
    margin: 0;
    padding: 0;
}
img { max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
button { border: none; outline: none; cursor: pointer; }
.container { max-width: 1200px; }

/* ===== Header / Nav ===== */
.site-header {
    background: rgba(255, 255, 255, 0.96);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 12px rgba(15, 28, 46, 0.05);
}
.main-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
    gap: 24px;
}
.brand {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
}
.brand-icon {
    width: 44px;
    height: 44px;
    background: var(--primary);
    color: var(--accent);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 19px;
    box-shadow: 0 4px 10px rgba(15, 28, 46, 0.15);
}
.brand-text {
    font-size: 19px;
    font-weight: 800;
    color: var(--primary);
    letter-spacing: 1px;
    white-space: nowrap;
}
.nav-links {
    display: flex;
    gap: 30px;
    list-style: none;
    margin: 0;
    padding: 0;
    align-items: center;
}
.nav-links a {
    display: inline-block;
    text-decoration: none;
    color: var(--text-weak);
    font-weight: 500;
    font-size: 16px;
    padding: 10px 4px;
    position: relative;
    transition: var(--transition);
}
.nav-links a:hover { color: var(--primary); }
.nav-links a.active { color: var(--primary); font-weight: 600; }
.nav-links a.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--accent);
    border-radius: 3px;
}
.btn-nav {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--primary);
    color: #ffffff;
    padding: 10px 24px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    font-size: 15px;
    border: 2px solid transparent;
    transition: var(--transition);
    white-space: nowrap;
}
.btn-nav:hover {
    background: var(--accent);
    color: var(--primary-dark);
    border-color: var(--accent);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(201, 162, 39, 0.3);
}
.nav-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 24px;
    color: var(--primary);
    cursor: pointer;
    padding: 8px;
    border-radius: var(--radius-sm);
    transition: var(--transition);
}
.nav-toggle:hover { background: var(--accent-soft); }

/* ===== Article Banner ===== */
.article-banner {
    background: linear-gradient(135deg, #0b1520 0%, #16283b 100%);
    position: relative;
    padding: 88px 0 76px;
    color: #ffffff;
    overflow: hidden;
}
.article-banner::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: url('/assets/images/backpic/back-2.png');
    background-size: cover;
    background-position: center;
    opacity: 0.28;
}
.article-banner::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, rgba(11, 21, 32, 0.88) 0%, rgba(11, 21, 32, 0.55) 60%, rgba(11, 21, 32, 0.35) 100%);
}
.article-banner .container {
    position: relative;
    z-index: 2;
}
.breadcrumb-nav {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.75);
    margin-bottom: 22px;
}
.breadcrumb-nav a {
    color: rgba(255, 255, 255, 0.75);
    text-decoration: none;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 4px;
}
.breadcrumb-nav a:hover { color: var(--accent); }
.breadcrumb-nav .sep { color: rgba(255, 255, 255, 0.4); }
.article-hero-title {
    font-size: 40px;
    font-weight: 800;
    line-height: 1.3;
    margin-bottom: 22px;
    letter-spacing: 1px;
    word-break: break-word;
    max-width: 880px;
}
.article-hero-meta {
    display: flex;
    gap: 22px;
    flex-wrap: wrap;
    font-size: 15px;
    color: rgba(255, 255, 255, 0.85);
}
.article-hero-meta span {
    display: flex;
    align-items: center;
    gap: 7px;
}
.article-hero-meta i { color: var(--accent); }

/* ===== Article Body ===== */
.article-main-section { padding: 56px 0 40px; }
.article-content-wrap {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: 44px 44px 36px;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-card);
}
.article-content {
    font-size: 16.5px;
    line-height: 1.95;
    color: var(--text-main);
}
.article-content p { margin-bottom: 20px; }
.article-content h2 {
    font-size: 27px;
    font-weight: 700;
    color: var(--primary);
    margin: 40px 0 16px;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--border-color);
    position: relative;
}
.article-content h2::before {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 56px;
    height: 3px;
    background: var(--accent);
    border-radius: 3px;
}
.article-content h3 {
    font-size: 22px;
    font-weight: 700;
    color: var(--primary);
    margin: 30px 0 14px;
}
.article-content h4 {
    font-size: 19px;
    font-weight: 700;
    color: var(--primary);
    margin: 24px 0 12px;
}
.article-content img {
    max-width: 100%;
    border-radius: var(--radius-md);
    margin: 24px 0;
    box-shadow: var(--shadow-card);
}
.article-content ul,
.article-content ol { margin-bottom: 20px; padding-left: 22px; }
.article-content li { margin-bottom: 8px; }
.article-content blockquote {
    border-left: 4px solid var(--accent);
    background: var(--accent-soft);
    padding: 16px 22px;
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    margin: 24px 0;
    color: var(--text-weak);
    font-style: normal;
}
.article-content a {
    color: var(--accent);
    font-weight: 600;
    border-bottom: 1px solid transparent;
    transition: var(--transition);
}
.article-content a:hover { border-bottom-color: var(--accent); }
.article-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 24px 0;
    border-radius: var(--radius-md);
    overflow: hidden;
    border: 1px solid var(--border-color);
}
.article-content table th,
.article-content table td {
    border: 1px solid var(--border-color);
    padding: 12px 16px;
    text-align: left;
}
.article-content table th {
    background: var(--primary);
    color: #ffffff;
    font-weight: 600;
}
.article-content table tr:nth-child(even) { background: #f8f9fb; }

/* Article Tags */
.article-tags {
    margin-top: 32px;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    align-items: center;
}
.article-tags .tag {
    background: var(--accent-soft);
    color: var(--primary);
    padding: 6px 16px;
    border-radius: 30px;
    font-size: 13px;
    font-weight: 600;
    transition: var(--transition);
}
.article-tags .tag:hover {
    background: var(--primary);
    color: #ffffff;
}
.article-tags .tag-label {
    color: var(--text-weak);
    font-size: 14px;
    margin-right: 4px;
}

/* Post Navigation */
.post-nav {
    margin-top: 36px;
    padding: 24px 0 0;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
}
.post-nav a {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--text-weak);
    font-size: 15px;
    font-weight: 500;
    transition: var(--transition);
    padding: 8px 16px;
    border-radius: 30px;
    border: 1px solid var(--border-color);
}
.post-nav a:hover {
    color: var(--primary);
    border-color: var(--accent);
    background: var(--accent-soft);
    transform: translateY(-2px);
}

/* ===== Sidebar ===== */
.sidebar { position: sticky; top: 100px; }
.sidebar-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-card);
    padding: 28px;
    margin-bottom: 24px;
    position: relative;
    overflow: hidden;
}
.sidebar-card h3 {
    font-size: 18px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 18px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--border-color);
    position: relative;
}
.sidebar-card h3::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 46px;
    height: 3px;
    background: var(--accent);
    border-radius: 3px;
}
.sidebar-card .sidebar-intro {
    font-size: 14px;
    color: var(--text-weak);
    margin-bottom: 14px;
}
.sidebar-img {
    width: 100%;
    border-radius: var(--radius-md);
    margin-bottom: 14px;
    box-shadow: var(--shadow-card);
}
.sidebar-list {
    list-style: none;
    padding: 0;
    margin: 0;
}
.sidebar-list li {
    border-bottom: 1px dashed var(--border-color);
    padding: 12px 0;
}
.sidebar-list li:last-child { border-bottom: none; }
.sidebar-list a {
    text-decoration: none;
    color: var(--text-main);
    font-size: 14.5px;
    display: flex;
    align-items: flex-start;
    gap: 10px;
    transition: var(--transition);
    line-height: 1.6;
}
.sidebar-list a i {
    color: var(--accent);
    font-size: 10px;
    margin-top: 6px;
    flex-shrink: 0;
}
.sidebar-list a:hover {
    color: var(--accent);
    transform: translateX(4px);
}
.sidebar-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--primary);
    color: #ffffff;
    padding: 10px 24px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    font-size: 14px;
    transition: var(--transition);
    margin-top: 12px;
}
.sidebar-btn:hover {
    background: var(--accent);
    color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(201, 162, 39, 0.3);
}
.sidebar-cta {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    border: none;
    color: #ffffff;
    text-align: center;
}
.sidebar-cta h3 {
    color: #ffffff;
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}
.sidebar-cta h3::after { background: var(--accent); }
.sidebar-cta p {
    color: rgba(255, 255, 255, 0.8);
    font-size: 14px;
    margin-bottom: 18px;
}
.sidebar-cta .btn-main {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--accent);
    color: var(--primary-dark);
    padding: 10px 24px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 700;
    font-size: 15px;
    transition: var(--transition);
}
.sidebar-cta .btn-main:hover {
    background: #ffffff;
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
}

/* ===== Related Section ===== */
.related-section {
    background: var(--bg-card);
    padding: 64px 0;
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}
.section-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 32px;
    flex-wrap: wrap;
    gap: 12px;
}
.section-head h2 {
    font-size: 30px;
    font-weight: 800;
    color: var(--primary);
    margin: 0;
    position: relative;
    padding-left: 18px;
}
.section-head h2::before {
    content: '';
    position: absolute;
    left: 0;
    top: 6px;
    width: 5px;
    height: 28px;
    background: var(--accent);
    border-radius: 4px;
}
.section-head .section-sub {
    color: var(--text-weak);
    font-size: 15px;
}
.related-card {
    background: #ffffff;
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-card);
    transition: var(--transition);
    height: 100%;
    display: flex;
    flex-direction: column;
}
.related-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-hover);
    border-color: transparent;
}
.related-card-img {
    width: 100%;
    aspect-ratio: 16 / 10;
    object-fit: cover;
    display: block;
    transition: transform .5s ease;
}
.related-card:hover .related-card-img { transform: scale(1.05); }
.related-card-body {
    padding: 22px;
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.related-card-body h3 {
    font-size: 17px;
    font-weight: 700;
    color: var(--text-main);
    line-height: 1.45;
    margin: 0;
    transition: var(--transition);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.related-card:hover .related-card-body h3 { color: var(--accent); }
.related-card-body p {
    font-size: 14px;
    color: var(--text-weak);
    line-height: 1.6;
    margin: 0;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    flex: 1;
}
.related-card-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 13px;
    color: var(--text-weak);
    border-top: 1px solid var(--border-color);
    padding-top: 12px;
    margin-top: 4px;
}
.related-card-meta span { display: flex; align-items: center; gap: 6px; }
.related-card-meta i { color: var(--accent); font-size: 12px; }

/* ===== CTA Section ===== */
.cta-section {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
    color: #ffffff;
    position: relative;
    overflow: hidden;
}
.cta-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: url('/assets/images/backpic/back-1.png');
    background-size: cover;
    background-position: center;
    opacity: 0.2;
}
.cta-section::after {
    content: '';
    position: absolute;
    top: -80px;
    right: -80px;
    width: 260px;
    height: 260px;
    border-radius: 50%;
    background: rgba(201, 162, 39, 0.1);
}
.cta-section .container { position: relative; z-index: 2; text-align: center; }
.cta-section h2 {
    font-size: 32px;
    font-weight: 800;
    margin-bottom: 14px;
    letter-spacing: 1px;
}
.cta-section p {
    font-size: 17px;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 28px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}
.cta-buttons {
    display: flex;
    gap: 14px;
    justify-content: center;
    flex-wrap: wrap;
}
.btn-main {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--accent);
    color: var(--primary-dark);
    padding: 12px 28px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 700;
    font-size: 16px;
    border: 2px solid var(--accent);
    transition: var(--transition);
}
.btn-main:hover {
    background: var(--accent-hover);
    border-color: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(201, 162, 39, 0.35);
    color: var(--primary-dark);
}
.btn-outline {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: transparent;
    color: #ffffff;
    padding: 12px 28px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    font-size: 16px;
    border: 2px solid rgba(255, 255, 255, 0.6);
    transition: var(--transition);
}
.btn-outline:hover {
    border-color: #ffffff;
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-2px);
}

/* ===== Article Not Found ===== */
.article-not-found {
    text-align: center;
    padding: 40px 20px;
}
.article-not-found i {
    font-size: 48px;
    color: var(--accent);
    margin-bottom: 18px;
    display: block;
}
.article-not-found h2 {
    font-size: 28px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 12px;
}
.article-not-found p {
    color: var(--text-weak);
    font-size: 16px;
    margin-bottom: 22px;
}

/* ===== Footer ===== */
.site-footer {
    background: var(--bg-dark);
    color: rgba(255, 255, 255, 0.7);
    padding: 64px 0 24px;
    font-size: 14px;
    line-height: 1.8;
}
.footer-top {
    display: grid;
    grid-template-columns: 1.6fr 1fr 1fr;
    gap: 48px;
    margin-bottom: 42px;
}
.footer-brand-name {
    display: flex;
    align-items: center;
    gap: 10px;
    color: #ffffff;
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 14px;
    letter-spacing: 1px;
}
.footer-brand-name .brand-icon {
    background: rgba(255, 255, 255, 0.12);
    color: var(--accent);
    border-radius: 10px;
}
.footer-desc {
    color: rgba(255, 255, 255, 0.55);
    font-size: 14px;
    max-width: 420px;
    line-height: 1.8;
    margin: 0;
}
.footer-col h4 {
    color: #ffffff;
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 16px;
    position: relative;
    padding-bottom: 10px;
}
.footer-col h4::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 30px;
    height: 2px;
    background: var(--accent);
    border-radius: 2px;
}
.footer-col ul {
    list-style: none;
    padding: 0;
    margin: 0;
}
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul a {
    color: rgba(255, 255, 255, 0.55);
    transition: var(--transition);
    text-decoration: none;
}
.footer-col ul a:hover {
    color: var(--accent);
    padding-left: 4px;
}
.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 22px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
    color: rgba(255, 255, 255, 0.45);
    font-size: 13px;
}
.footer-bottom p { margin: 0; }

/* ===== Buttons General ===== */
.btn-primary-custom {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--primary);
    color: #ffffff;
    padding: 12px 28px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    font-size: 16px;
    border: 2px solid transparent;
    transition: var(--transition);
}
.btn-primary-custom:hover {
    background: var(--accent);
    color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(201, 162, 39, 0.3);
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
    .article-hero-title { font-size: 34px; }
    .footer-top { grid-template-columns: 1fr 1fr; }
    .sidebar { position: static; margin-top: 32px; }
}
@media (max-width: 768px) {
    .container { padding-left: 20px; padding-right: 20px; }
    .main-nav { height: 70px; }
    .brand-text { font-size: 16px; letter-spacing: 0.5px; }
    .brand-icon { width: 38px; height: 38px; font-size: 16px; }
    .nav-toggle { display: block; }
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: #ffffff;
        flex-direction: column;
        padding: 10px 0 16px;
        border-bottom: 1px solid var(--border-color);
        box-shadow: 0 16px 30px rgba(15, 28, 46, 0.1);
        gap: 0;
        align-items: stretch;
    }
    .nav-links.open { display: flex; }
    .nav-links li { width: 100%; }
    .nav-links a {
        display: block;
        padding: 13px 24px;
        border-bottom: 1px solid #f0f2f5;
        font-size: 16px;
        text-align: left;
    }
    .nav-links a.active::after { display: none; }
    .nav-links a.active { background: var(--accent-soft); }
    .btn-nav { display: none; }
    .article-banner { padding: 56px 0 48px; }
    .article-hero-title { font-size: 28px; line-height: 1.35; }
    .article-hero-meta { gap: 14px; font-size: 14px; }
    .article-content-wrap { padding: 24px 20px; }
    .article-content { font-size: 15.5px; }
    .section-head h2 { font-size: 24px; }
    .cta-section { padding: 56px 0; }
    .cta-section h2 { font-size: 26px; }
    .footer-top { grid-template-columns: 1fr; gap: 32px; }
    .footer-bottom { flex-direction: column; text-align: center; }
    .related-card-body h3 { font-size: 16px; }
    .post-nav { flex-direction: column; align-items: stretch; }
    .post-nav a { justify-content: center; }
}
@media (max-width: 520px) {
    .container { padding-left: 16px; padding-right: 16px; }
    .article-hero-title { font-size: 24px; }
    .article-hero-meta { flex-direction: column; gap: 8px; }
    .article-content-wrap { padding: 20px 16px; border-radius: 14px; }
    .article-content { font-size: 15px; line-height: 1.85; }
    .sidebar-card { padding: 22px 18px; }
    .section-head h2 { font-size: 22px; }
    .cta-buttons .btn-main,
    .cta-buttons .btn-outline { width: 100%; justify-content: center; }
}