/* roulang page: index */
:root{--primary:#081e3d;--primary-light:#0f3460;--accent:#d4a853;--accent-dark:#b8893a;--bg:#f4f6fb;--card:#ffffff;--text:#172033;--text-weak:#66788f;--border:#e3e9f2;--radius:16px;--radius-sm:9px;--shadow:0 6px 28px rgba(8,30,61,.08);--shadow-lg:0 16px 48px rgba(8,30,61,.14);--spacer:90px;--nav-height:74px;--transition:.3s ease}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;line-height:1.65;color:var(--text);background:var(--bg)}
a{text-decoration:none;color:inherit;transition:var(--transition)}
img{max-width:100%;display:block}
button,input,textarea{font:inherit;border:none;outline:none}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 28px;border-radius:var(--radius-sm);font-weight:600;font-size:15px;cursor:pointer;transition:var(--transition);line-height:1.2}
.btn-primary{background:var(--accent);color:#081e3d;box-shadow:0 4px 16px rgba(212,168,83,.35)}
.btn-primary:hover{background:var(--accent-dark);transform:translateY(-3px);box-shadow:0 8px 24px rgba(212,168,83,.45)}
.btn-outline{border:2px solid rgba(255,255,255,.45);color:#fff;background:transparent}
.btn-outline:hover{background:rgba(255,255,255,.12);border-color:#fff;transform:translateY(-3px)}
.btn-dark{background:var(--primary);color:#fff;box-shadow:0 4px 16px rgba(8,30,61,.25)}
.btn-dark:hover{background:var(--primary-light);transform:translateY(-3px)}
.tag{display:inline-block;padding:5px 14px;border-radius:20px;font-size:12px;font-weight:600;background:rgba(8,30,61,.07);color:var(--primary)}
.tag-accent{background:rgba(212,168,83,.15);color:var(--accent-dark)}
.section{padding:var(--spacer) 0}
.section-head{max-width:640px;margin-bottom:48px}
.section-head h2{font-size:36px;font-weight:800;line-height:1.25;letter-spacing:-.5px;color:var(--primary);margin-bottom:12px}
.section-head p{color:var(--text-weak);font-size:16px}
.section-head.center{text-align:center;margin-left:auto;margin-right:auto}
.section-foot{text-align:center;margin-top:40px}
/* Header */
.site-header{background:var(--primary);position:sticky;top:0;z-index:100;box-shadow:0 2px 24px rgba(0,0,0,.25)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:22px;height:var(--nav-height)}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:17px;color:#fff;letter-spacing:.3px;white-space:nowrap}
.brand i{color:var(--accent);font-size:22px}
.main-nav{display:flex;gap:4px}
.main-nav a{color:rgba(255,255,255,.7);padding:9px 18px;border-radius:30px;font-size:14px;font-weight:500}
.main-nav a:hover{color:#fff;background:rgba(255,255,255,.08)}
.main-nav a.active{color:var(--accent);background:rgba(212,168,83,.14)}
.header-actions{display:flex;align-items:center;gap:12px}
.search-box{display:flex;align-items:center;background:rgba(255,255,255,.1);border-radius:24px;padding-left:16px;overflow:hidden;border:1px solid rgba(255,255,255,.08)}
.search-box input{background:transparent;color:#fff;padding:9px 10px;width:170px;font-size:13px}
.search-box input::placeholder{color:rgba(255,255,255,.5)}
.search-box button{background:transparent;color:var(--accent);padding:0 14px;cursor:pointer;font-size:15px}
.nav-toggle{display:none;background:transparent;color:#fff;font-size:22px;cursor:pointer;width:40px;height:40px;border-radius:8px;align-items:center;justify-content:center}
.nav-toggle:hover{background:rgba(255,255,255,.08)}
.mobile-nav{display:none;position:fixed;top:var(--nav-height);left:0;right:0;background:var(--primary);flex-direction:column;padding:20px 24px;gap:8px;z-index:99;box-shadow:0 20px 40px rgba(0,0,0,.3);border-top:1px solid rgba(255,255,255,.08)}
.mobile-nav.open{display:flex}
.mobile-nav a{color:rgba(255,255,255,.8);padding:12px 16px;border-radius:10px;font-size:16px}
.mobile-nav a:hover{background:rgba(255,255,255,.08);color:#fff}
.mobile-nav a.active{color:var(--accent);background:rgba(212,168,83,.12)}
/* Hero */
.hero{position:relative;padding:120px 0 100px;background:var(--primary);color:#fff;overflow:hidden}
.hero-bg{position:absolute;inset:0;background:url('/assets/images/backpic/back-1.png');background-size:cover;background-position:center;opacity:.3;transition:transform .6s}
.hero-bg::after{content:'';position:absolute;inset:0;background:linear-gradient(120deg,rgba(8,30,61,.92) 0%,rgba(8,30,61,.75) 50%,rgba(8,30,61,.55) 100%)}
.hero-content{position:relative;z-index:2;max-width:760px;margin:0 auto;text-align:center}
.hero-badge{display:inline-flex;align-items:center;gap:8px;background:rgba(212,168,83,.15);border:1px solid rgba(212,168,83,.4);color:var(--accent);padding:7px 20px;border-radius:30px;font-size:13px;font-weight:600;margin-bottom:26px}
.hero-content h1{font-size:50px;font-weight:900;line-height:1.15;letter-spacing:-1px;margin-bottom:20px}
.hero-content h1 span{color:var(--accent)}
.hero-content p{font-size:18px;color:rgba(255,255,255,.85);max-width:560px;margin:0 auto 36px}
.hero-buttons{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}
.hero-meta{display:flex;gap:32px;justify-content:center;margin-top:64px;color:rgba(255,255,255,.7);font-size:14px}
.hero-meta i{color:var(--accent);margin-right:6px}
/* Features */
.features{background:var(--card)}
.features .container{padding-top:var(--spacer);padding-bottom:var(--spacer)}
.features-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.feature-card{background:var(--bg);border:1px solid var(--border);border-radius:var(--radius);padding:36px 28px;transition:var(--transition)}
.feature-card:hover{background:var(--card);box-shadow:var(--shadow-lg);transform:translateY(-6px);border-color:transparent}
.feature-icon{width:56px;height:56px;border-radius:14px;background:rgba(212,168,83,.15);color:var(--accent-dark);display:flex;align-items:center;justify-content:center;font-size:22px;margin-bottom:20px}
.feature-card h3{font-size:19px;color:var(--primary);margin-bottom:10px;font-weight:700}
.feature-card p{color:var(--text-weak);font-size:14px;line-height:1.7}
/* Category Entry */
.cat-entry{background:var(--bg)}
.cat-entry .container{padding-top:var(--spacer);padding-bottom:var(--spacer)}
.cat-list{display:grid;grid-template-columns:repeat(2,1fr);gap:28px}
.cat-card{background:var(--card);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:var(--transition);display:block;position:relative}
.cat-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-lg)}
.cat-card-img{height:260px;overflow:hidden;position:relative}
.cat-card-img img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.cat-card:hover .cat-card-img img{transform:scale(1.05)}
.cat-card-img::after{content:'';position:absolute;inset:0;background:linear-gradient(to top,rgba(8,30,61,.6),transparent)}
.cat-card-body{position:absolute;left:0;right:0;bottom:0;padding:26px;z-index:2;color:#fff}
.cat-card-body h3{font-size:22px;font-weight:700;margin-bottom:6px}
.cat-card-body p{font-size:14px;color:rgba(255,255,255,.85);margin-bottom:12px}
.cat-card-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--accent)}
.cat-card-link:hover{gap:12px}
/* Stats */
.stats{position:relative;padding:90px 0;background:var(--primary);color:#fff;overflow:hidden}
.stats-bg{position:absolute;inset:0;background:url('/assets/images/backpic/back-2.png');background-size:cover;background-position:center;opacity:.18}
.stats-bg::after{content:'';position:absolute;inset:0;background:linear-gradient(180deg,rgba(8,30,61,.92),rgba(8,30,61,.85))}
.stats-inner{position:relative;z-index:2}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:36px;text-align:center}
.stat-item .num{font-size:52px;font-weight:900;color:var(--accent);line-height:1.1}
.stat-item .label{font-size:15px;color:rgba(255,255,255,.75);margin-top:8px}
/* News */
.news{background:var(--card)}
.news .container{padding-top:var(--spacer);padding-bottom:var(--spacer)}
.news-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:28px}
.news-card{background:var(--bg);border:1px solid var(--border);border-radius:var(--radius);padding:28px;transition:var(--transition);display:flex;flex-direction:column}
.news-card:hover{background:var(--card);box-shadow:var(--shadow-lg);transform:translateY(-5px);border-color:transparent}
.news-meta{display:flex;gap:12px;align-items:center;margin-bottom:14px;font-size:13px;color:var(--text-weak)}
.news-card h3{font-size:18px;font-weight:700;color:var(--primary);line-height:1.4;margin-bottom:10px}
.news-card p{font-size:14px;color:var(--text-weak);line-height:1.65;margin-bottom:16px;flex:1}
.news-date i{margin-right:4px}
.news-empty{grid-column:1/-1;text-align:center;padding:60px 24px;color:var(--text-weak);font-size:16px;background:var(--bg);border-radius:var(--radius)}
/* Steps */
.steps{background:var(--bg)}
.steps .container{padding-top:var(--spacer);padding-bottom:var(--spacer)}
.steps-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.step-item{background:var(--card);border-radius:var(--radius);padding:32px 24px;text-align:center;box-shadow:var(--shadow);transition:var(--transition);position:relative}
.step-item:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.step-no{width:44px;height:44px;border-radius:50%;background:var(--accent);color:#081e3d;font-weight:800;font-size:18px;display:inline-flex;align-items:center;justify-content:center;margin-bottom:18px}
.step-item h3{font-size:17px;color:var(--primary);margin-bottom:8px;font-weight:700}
.step-item p{font-size:13px;color:var(--text-weak)}
/* FAQ */
.faq{background:var(--card)}
.faq .container{padding-top:var(--spacer);padding-bottom:var(--spacer)}
.faq-list{max-width:860px;margin:0 auto}
.faq-item{border:1px solid var(--border);border-radius:14px;margin-bottom:14px;overflow:hidden;background:var(--bg);transition:var(--transition)}
.faq-item:hover{border-color:rgba(212,168,83,.4)}
.faq-item details summary{display:flex;justify-content:space-between;align-items:center;padding:22px 28px;cursor:pointer;font-weight:600;font-size:16px;color:var(--primary);list-style:none}
.faq-item details summary::-webkit-details-marker{display:none}
.faq-item details summary i{color:var(--accent);transition:var(--transition)}
.faq-item details[open] summary i{transform:rotate(45deg)}
.faq-item details p{padding:0 28px 24px;font-size:15px;color:var(--text-weak);line-height:1.7}
/* CTA */
.cta{position:relative;padding:90px 0;background:var(--primary);color:#fff;text-align:center;overflow:hidden}
.cta-bg{position:absolute;inset:0;background:url('/assets/images/backpic/back-3.png');background-size:cover;background-position:center;opacity:.2}
.cta-bg::after{content:'';position:absolute;inset:0;background:linear-gradient(180deg,rgba(8,30,61,.9),rgba(8,30,61,.8))}
.cta-inner{position:relative;z-index:2}
.cta-inner h2{font-size:38px;font-weight:800;margin-bottom:16px}
.cta-inner p{font-size:17px;color:rgba(255,255,255,.8);margin-bottom:36px;max-width:520px;margin-left:auto;margin-right:auto}
.cta-buttons{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}
/* Footer */
.site-footer{background:#050d1a;color:#9fb0c3;padding:70px 0 28px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:48px;padding-bottom:48px;border-bottom:1px solid rgba(255,255,255,.08)}
.footer-brand h3{font-size:20px;color:#fff;font-weight:800;margin-bottom:14px}
.footer-brand p{font-size:14px;line-height:1.7;color:#9fb0c3}
.footer-col h4{color:#fff;font-size:16px;font-weight:600;margin-bottom:18px}
.footer-col ul{list-style:none}
.footer-col ul li{margin-bottom:12px}
.footer-col ul li a{font-size:14px;color:#9fb0c3}
.footer-col ul li a:hover{color:var(--accent)}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;font-size:14px;margin-bottom:12px}
.footer-contact i{color:var(--accent);margin-top:4px}
.footer-bottom{display:flex;justify-content:space-between;align-items:center;padding-top:28px;font-size:13px;color:#7a8ba0;flex-wrap:wrap;gap:12px}
.footer-bottom a{color:#9fb0c3}
.footer-bottom a:hover{color:var(--accent)}
/* Article page */
.breadcrumb{background:var(--bg);padding:16px 0;border-bottom:1px solid var(--border)}
.breadcrumb .crumb-wrap{display:flex;gap:8px;align-items:center;font-size:14px;color:var(--text-weak)}
.breadcrumb a:hover{color:var(--accent)}
.article-hero{background:var(--primary);padding:64px 0;color:#fff;position:relative;overflow:hidden}
.article-hero .bg{position:absolute;inset:0;background:url('/assets/images/backpic/back-1.png');background-size:cover;opacity:.15}
.article-hero .bg::after{content:'';position:absolute;inset:0;background:linear-gradient(120deg,rgba(8,30,61,.85),rgba(8,30,61,.7))}
.article-hero-inner{position:relative;z-index:2;max-width:860px}
.article-hero h1{font-size:38px;font-weight:800;line-height:1.3;margin-bottom:18px}
.article-meta{display:flex;gap:20px;flex-wrap:wrap;align-items:center;font-size:14px;color:rgba(255,255,255,.7)}
.article-meta i{margin-right:5px;color:var(--accent)}
.article-main{max-width:860px;margin:-40px auto 0;position:relative;z-index:3;background:var(--card);border-radius:16px;box-shadow:var(--shadow-lg);padding:48px}
.article-body{font-size:16px;line-height:1.85;color:var(--text)}
.article-body h2{font-size:24px;color:var(--primary);margin:32px 0 14px;font-weight:700}
.article-body h3{font-size:19px;color:var(--primary);margin:26px 0 12px}
.article-body p{margin-bottom:18px}
.article-body img{border-radius:12px;margin:20px 0}
.article-body blockquote{border-left:4px solid var(--accent);background:var(--bg);padding:18px 22px;border-radius:0 12px 12px 0;margin:20px 0;color:var(--text-weak)}
.article-not-found{padding:80px 0;text-align:center}
.article-not-found h2{font-size:32px;color:var(--primary);margin-bottom:16px}
.article-not-found p{color:var(--text-weak);margin-bottom:28px}
/* Category page */
.cat-banner{position:relative;padding:100px 0;background:var(--primary);color:#fff;overflow:hidden}
.cat-banner-bg{position:absolute;inset:0;background:url('/assets/images/backpic/back-3.png');background-size:cover;background-position:center;opacity:.3}
.cat-banner-bg::after{content:'';position:absolute;inset:0;background:linear-gradient(120deg,rgba(8,30,61,.92),rgba(8,30,61,.65))}
.cat-banner-inner{position:relative;z-index:2;max-width:720px}
.cat-banner-inner h1{font-size:44px;font-weight:900;margin-bottom:18px;line-height:1.15}
.cat-banner-inner p{font-size:17px;color:rgba(255,255,255,.85);margin-bottom:28px}
.cat-intro{background:var(--card)}
.cat-intro .container{padding-top:var(--spacer);padding-bottom:var(--spacer)}
.cat-intro-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.cat-intro-img{border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-lg)}
.cat-intro-img img{width:100%;height:100%;object-fit:cover}
.cat-intro-content h2{font-size:30px;color:var(--primary);font-weight:800;margin-bottom:18px}
.cat-intro-content p{color:var(--text-weak);font-size:15px;line-height:1.75;margin-bottom:18px}
.cat-tags{display:flex;gap:10px;flex-wrap:wrap;margin-top:24px}
/* Sub category cards */
.sub-cats{background:var(--bg)}
.sub-cats .container{padding-top:var(--spacer);padding-bottom:var(--spacer)}
.sub-cats-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.sub-cat-card{background:var(--card);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:var(--transition)}
.sub-cat-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.sub-cat-img{height:200px;overflow:hidden}
.sub-cat-img img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.sub-cat-card:hover .sub-cat-img img{transform:scale(1.05)}
.sub-cat-body{padding:24px}
.sub-cat-body h3{font-size:18px;color:var(--primary);margin-bottom:10px;font-weight:700}
.sub-cat-body p{font-size:14px;color:var(--text-weak);line-height:1.65}
/* Responsive */
@media(max-width:1024px){
.news-grid{grid-template-columns:1fr}
.features-grid{grid-template-columns:repeat(3,1fr)}
.steps-grid{grid-template-columns:repeat(2,1fr)}
.stats-grid{grid-template-columns:repeat(2,1fr)}
.cat-list{grid-template-columns:1fr 1fr}
.sub-cats-grid{grid-template-columns:repeat(2,1fr)}
.cat-intro-grid{grid-template-columns:1fr;gap:36px}
.search-box input{width:120px}
}
@media(max-width:768px){
:root{--spacer:60px}
.header-inner{gap:14px}
.main-nav{display:none}
.header-actions .btn{display:none}
.nav-toggle{display:flex}
.search-box input{width:100px}
.hero{padding:80px 0 70px}
.hero-content h1{font-size:34px}
.hero-content p{font-size:16px}
.hero-meta{flex-wrap:wrap;gap:16px}
.features-grid{grid-template-columns:1fr}
.footer-grid{grid-template-columns:1fr 1fr;gap:32px}
.article-main{padding:28px;margin-top:-24px}
.article-hero h1{font-size:28px}
.cat-banner-inner h1{font-size:32px}
.sub-cats-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:520px){
.container{padding:0 18px}
.brand{font-size:14px}
.brand i{font-size:18px}
.search-box{display:none}
.hero{padding:60px 0 56px}
.hero-content h1{font-size:28px}
.hero-buttons{flex-direction:column;align-items:center}
.hero-buttons .btn{width:100%;max-width:260px}
.stats-grid{grid-template-columns:1fr 1fr;gap:24px}
.stat-item .num{font-size:34px}
.steps-grid{grid-template-columns:1fr}
.cat-list{grid-template-columns:1fr}
.sub-cats-grid{grid-template-columns:1fr}
.footer-grid{grid-template-columns:1fr}
.article-main{padding:22px}
.section-head h2{font-size:26px}
.cta-inner h2{font-size:26px}
.cta-buttons{flex-direction:column;align-items:center}
.cta-buttons .btn{width:100%;max-width:260px}
.footer-bottom{flex-direction:column;text-align:center}
}

/* roulang page: category1 */
/* ========== 设计变量 ========== */
:root {
  --primary: #0F2A4A;
  --primary-2: #1A3C6E;
  --dark-bg: #0B1D36;
  --accent: #C9A15A;
  --accent-2: #E0C58A;
  --bg: #F5F7FA;
  --white: #FFFFFF;
  --text: #1E2D3D;
  --text-light: #5A6B7E;
  --border: #E3E9F0;
  --radius: 14px;
  --radius-lg: 24px;
  --shadow: 0 4px 20px rgba(15,42,74,0.08);
  --shadow-hover: 0 10px 32px rgba(15,42,74,0.14);
  --transition: all .3s ease;
  --header-h: 76px;
  --container-w: 1280px;
}

/* ========== Reset / 基础 ========== */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  line-height: 1.7;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
button, input { font-family: inherit; border: none; outline: none; }
ul, ol { list-style: none; }

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

/* ========== 按钮 ========== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: 24px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
  line-height: 1.4;
}
.btn:focus-visible,
a:focus-visible {
  outline: 3px solid rgba(201,161,90,0.5);
  outline-offset: 2px;
}
.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-2));
  color: #fff;
  box-shadow: 0 4px 16px rgba(15,42,74,0.25);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 28px rgba(15,42,74,0.32); }
.btn-accent {
  background: linear-gradient(135deg, var(--accent), #E0C58A);
  color: var(--primary);
  font-weight: 700;
}
.btn-accent:hover { transform: translateY(-2px); box-shadow: 0 8px 28px rgba(201,161,90,0.35); }
.btn-ghost {
  background: rgba(255,255,255,0.13);
  color: #fff;
  border: 1px solid rgba(255,255,255,0.3);
  backdrop-filter: blur(8px);
}
.btn-ghost:hover { background: rgba(255,255,255,0.22); transform: translateY(-2px); }
.btn-lg { padding: 15px 38px; font-size: 16px; border-radius: 30px; }
.btn-sm { padding: 8px 20px; font-size: 14px; border-radius: 20px; }

/* ========== 导航 ========== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 999;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 0 24px;
  height: var(--header-h);
  display: flex;
  align-items: center;
  gap: 28px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.brand-icon {
  width: 42px;
  height: 42px;
  background: linear-gradient(135deg, var(--primary), var(--primary-2));
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  font-size: 19px;
  box-shadow: 0 3px 10px rgba(15,42,74,0.2);
}
.brand-text {
  font-size: 18px;
  font-weight: 700;
  color: var(--primary);
  letter-spacing: 1px;
  white-space: nowrap;
}
.main-nav {
  display: flex;
  gap: 4px;
  flex: 1;
}
.main-nav a {
  padding: 8px 18px;
  border-radius: 20px;
  color: var(--text-light);
  font-size: 15px;
  font-weight: 500;
  transition: var(--transition);
  white-space: nowrap;
}
.main-nav a:hover { color: var(--primary); background: rgba(15,42,74,0.05); }
.main-nav a.active { color: var(--primary); background: rgba(15,42,74,0.08); font-weight: 600; }
.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}
.search-box { position: relative; }
.search-box input {
  width: 180px;
  height: 40px;
  border: 1px solid var(--border);
  border-radius: 22px;
  padding: 0 40px 0 16px;
  font-size: 14px;
  background: var(--bg);
  transition: var(--transition);
  color: var(--text);
}
.search-box input::placeholder { color: var(--text-light); }
.search-box input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(201,161,90,0.15);
  width: 220px;
  background: var(--white);
}
.search-box i {
  position: absolute;
  right: 15px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-light);
  font-size: 14px;
  pointer-events: none;
}
.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: var(--bg);
  color: var(--primary);
  font-size: 18px;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}
.nav-toggle:hover { background: rgba(15,42,74,0.08); }
.mobile-nav {
  display: none;
  flex-direction: column;
  padding: 10px 24px 18px;
  border-top: 1px solid var(--border);
  background: var(--white);
  gap: 4px;
}
.mobile-nav a {
  padding: 12px 16px;
  border-radius: 10px;
  color: var(--text-light);
  font-size: 16px;
  font-weight: 500;
}
.mobile-nav a.active { color: var(--primary); background: rgba(15,42,74,0.06); font-weight: 600; }
.mobile-nav.open { display: flex; }

/* ========== Hero ========== */
.category-hero {
  position: relative;
  background:
    linear-gradient(135deg, rgba(11,29,54,0.93), rgba(15,42,74,0.82)),
    url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  color: #fff;
  padding: 100px 0 90px;
  text-align: center;
}
.hero-breadcrumb {
  font-size: 14px;
  color: rgba(255,255,255,0.7);
  margin-bottom: 20px;
  letter-spacing: 1px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}
.hero-breadcrumb a { color: var(--accent-2); transition: var(--transition); }
.hero-breadcrumb a:hover { color: #fff; }
.hero-breadcrumb i { font-size: 10px; }
.category-hero h1 {
  font-size: 46px;
  font-weight: 800;
  letter-spacing: 3px;
  line-height: 1.2;
  margin-bottom: 18px;
  text-shadow: 0 4px 20px rgba(0,0,0,0.3);
}
.hero-subtitle {
  font-size: 17px;
  color: rgba(255,255,255,0.88);
  max-width: 700px;
  margin: 0 auto 34px;
  line-height: 1.8;
}
.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}
.hero-tags {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 36px;
}
.hero-tags span {
  background: rgba(255,255,255,0.1);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255,255,255,0.18);
  padding: 6px 18px;
  border-radius: 22px;
  font-size: 13px;
  color: rgba(255,255,255,0.9);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.hero-tags i { color: var(--accent-2); }

/* ========== 板块通用 ========== */
.section { padding: 84px 0; }
.section-alt { background: var(--white); }
.section-dark { background: var(--dark-bg); }
.section-head { text-align: center; margin-bottom: 52px; }
.section-tag {
  display: inline-block;
  background: rgba(201,161,90,0.12);
  color: #9A7B3C;
  font-size: 13px;
  font-weight: 600;
  padding: 6px 20px;
  border-radius: 20px;
  letter-spacing: 1px;
  margin-bottom: 14px;
}
.section-dark .section-tag { background: rgba(201,161,90,0.18); color: var(--accent-2); }
.section-head h2 {
  font-size: 32px;
  color: var(--primary);
  font-weight: 800;
  margin-bottom: 12px;
  line-height: 1.3;
}
.section-dark .section-head h2 { color: #fff; }
.section-head p {
  color: var(--text-light);
  font-size: 16px;
  max-width: 680px;
  margin: 0 auto;
}
.section-dark .section-head p { color: rgba(255,255,255,0.65); }

/* ========== 图文分栏 ========== */
.split-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
.split-media {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-hover);
}
.split-media img {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
  transition: transform .5s ease;
}
.split-media img:hover { transform: scale(1.03); }
.split-media::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(15,42,74,0.08), transparent 45%);
  pointer-events: none;
}
.split-content h2 {
  font-size: 30px;
  color: var(--primary);
  margin-bottom: 16px;
  line-height: 1.4;
}
.split-content p { color: var(--text-light); margin-bottom: 16px; font-size: 15px; }
.feature-list { margin: 24px 0; }
.feature-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 8px 0;
  font-size: 15px;
  color: var(--text);
}
.feature-list i { color: var(--accent); margin-top: 4px; }

/* ========== 产品卡片 ========== */
.card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.product-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  transition: var(--transition);
}
.product-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
}
.product-media {
  position: relative;
  overflow: hidden;
  aspect-ratio: 4/3;
}
.product-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .5s ease;
}
.product-card:hover .product-media img { transform: scale(1.06); }
.product-badge {
  position: absolute;
  top: 14px;
  left: 14px;
  background: rgba(15,42,74,0.88);
  backdrop-filter: blur(8px);
  color: #fff;
  font-size: 12px;
  font-weight: 600;
  padding: 4px 14px;
  border-radius: 16px;
  letter-spacing: 1px;
}
.product-body { padding: 22px; }
.product-body h3 {
  font-size: 18px;
  color: var(--text);
  margin-bottom: 6px;
  font-weight: 600;
}
.product-desc { font-size: 14px; color: var(--text-light); margin-bottom: 14px; line-height: 1.6; }
.product-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}
.product-price { font-size: 20px; font-weight: 800; color: #B8860B; }
.product-price small { font-size: 13px; color: var(--text-light); font-weight: 400; margin-left: 4px; }
.product-rate { color: var(--accent); font-size: 14px; }
.product-rate i { margin-right: 3px; }
.btn-buy {
  display: block;
  width: 100%;
  text-align: center;
  padding: 11px;
  border-radius: 12px;
  background: rgba(15,42,74,0.05);
  color: var(--primary);
  font-size: 15px;
  font-weight: 600;
  transition: var(--transition);
}
.btn-buy:hover { background: var(--primary); color: #fff; }

/* ========== 数据卡片 ========== */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.stat-card {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius-lg);
  padding: 34px 24px;
  text-align: center;
  backdrop-filter: blur(10px);
  transition: var(--transition);
}
.stat-card:hover {
  background: rgba(255,255,255,0.1);
  transform: translateY(-4px);
  border-color: rgba(201,161,90,0.4);
}
.stat-num {
  font-size: 42px;
  font-weight: 800;
  color: var(--accent-2);
  line-height: 1.2;
  letter-spacing: 1px;
}
.stat-label { font-size: 15px; color: rgba(255,255,255,0.82); margin-top: 10px; }

/* ========== 流程卡片 ========== */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 20px;
}
.step-card {
  text-align: center;
  padding: 32px 20px;
  background: var(--white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  transition: var(--transition);
  position: relative;
}
.step-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(201,161,90,0.35);
}
.step-num {
  position: absolute;
  top: 14px;
  left: 14px;
  font-size: 13px;
  font-weight: 700;
  color: rgba(201,161,90,0.7);
  background: rgba(201,161,90,0.1);
  padding: 2px 10px;
  border-radius: 12px;
}
.step-icon {
  font-size: 30px;
  color: var(--primary);
  margin-bottom: 14px;
  margin-top: 10px;
}
.step-title { font-size: 16px; font-weight: 600; color: var(--text); margin-bottom: 6px; }
.step-desc { font-size: 13px; color: var(--text-light); line-height: 1.6; }

/* ========== FAQ ========== */
.faq-list { max-width: 860px; margin: 0 auto; }
.faq-item {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 14px;
  overflow: hidden;
  transition: var(--transition);
}
.faq-item:hover { border-color: rgba(201,161,90,0.4); box-shadow: var(--shadow); }
.faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 26px;
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
}
.faq-question i {
  color: var(--accent);
  transition: transform .35s ease;
  font-size: 15px;
}
.faq-item.open .faq-question i { transform: rotate(45deg); }
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height .4s ease;
  padding: 0 26px;
  color: var(--text-light);
  font-size: 15px;
  line-height: 1.8;
}
.faq-item.open .faq-answer {
  max-height: 300px;
  padding-bottom: 22px;
}

/* ========== CTA ========== */
.cta-band {
  position: relative;
  background:
    linear-gradient(135deg, rgba(11,29,54,0.92), rgba(26,60,110,0.85)),
    url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  border-radius: var(--radius-lg);
  padding: 70px 50px;
  text-align: center;
  color: #fff;
  overflow: hidden;
  box-shadow: var(--shadow-hover);
}
.cta-band h2 {
  font-size: 34px;
  font-weight: 800;
  margin-bottom: 12px;
  letter-spacing: 2px;
}
.cta-band p {
  color: rgba(255,255,255,0.82);
  font-size: 16px;
  margin-bottom: 30px;
  max-width: 620px;
  margin-left: auto;
  margin-right: auto;
}
.cta-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ========== 页脚 ========== */
.site-footer {
  background: var(--dark-bg);
  color: rgba(255,255,255,0.72);
  padding: 64px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 52px;
  padding-bottom: 44px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}
.footer-brand h3 {
  color: #fff;
  font-size: 20px;
  margin-bottom: 16px;
}
.footer-brand p {
  font-size: 14px;
  line-height: 1.8;
  color: rgba(255,255,255,0.6);
}
.footer-col h4 {
  color: #fff;
  font-size: 16px;
  margin-bottom: 18px;
}
.footer-col ul li { margin-bottom: 10px; }
.footer-col a {
  color: rgba(255,255,255,0.6);
  font-size: 14px;
  transition: var(--transition);
}
.footer-col a:hover { color: var(--accent-2); padding-left: 4px; }
.footer-contact li {
  color: rgba(255,255,255,0.6);
  font-size: 14px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.footer-contact i { color: var(--accent); width: 16px; text-align: center; }
.footer-bottom {
  padding: 24px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 14px;
  color: rgba(255,255,255,0.45);
  gap: 16px;
  flex-wrap: wrap;
}

/* ========== 响应式 ========== */
@media (max-width: 1100px) {
  .search-box input { width: 140px; }
  .search-box input:focus { width: 160px; }
  .card-grid { grid-template-columns: repeat(2, 1fr); }
  .steps-grid { grid-template-columns: repeat(3, 1fr); }
  .split-block { gap: 40px; }
}

@media (max-width: 768px) {
  .main-nav { display: none; }
  .nav-toggle { display: flex; }
  .header-actions .search-box { display: none; }
  .header-actions .btn-sm { display: none; }
  .category-hero { padding: 70px 0 60px; }
  .category-hero h1 { font-size: 30px; letter-spacing: 1px; }
  .hero-subtitle { font-size: 15px; }
  .section { padding: 60px 0; }
  .section-head h2 { font-size: 26px; }
  .split-block { grid-template-columns: 1fr; gap: 32px; }
  .split-content h2 { font-size: 26px; }
  .card-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .steps-grid { grid-template-columns: repeat(2, 1fr); }
  .cta-band { padding: 48px 24px; }
  .cta-band h2 { font-size: 26px; }
  .footer-grid { grid-template-columns: 1fr; gap: 36px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .hero-actions .btn { width: 100%; }
  .cta-actions .btn { width: 100%; }
}

@media (max-width: 520px) {
  .header-inner { padding: 0 16px; gap: 12px; }
  .brand-text { font-size: 15px; letter-spacing: 0; }
  .brand-icon { width: 36px; height: 36px; font-size: 16px; }
  .category-hero h1 { font-size: 25px; }
  .hero-subtitle { font-size: 14px; line-height: 1.7; }
  .section-head h2 { font-size: 23px; }
  .stats-grid { gap: 12px; }
  .stat-card { padding: 24px 16px; }
  .stat-num { font-size: 32px; }
  .steps-grid { grid-template-columns: 1fr; max-width: 340px; margin: 0 auto; }
  .step-card { padding: 26px 20px; }
  .cta-band { padding: 40px 20px; }
  .cta-band h2 { font-size: 23px; }
  .faq-question { font-size: 15px; padding: 18px 20px; }
  .faq-answer { padding: 0 20px; }
}

/* roulang page: article */
/* ===== Design Variables ===== */
:root {
  --primary: #0f1c3f;
  --primary-light: #1a2a52;
  --primary-dark: #080f24;
  --accent: #c9a45c;
  --accent-light: #f0d690;
  --accent-dark: #a8863e;
  --bg: #f5f7fb;
  --bg-alt: #eef1f6;
  --card-bg: #ffffff;
  --text: #1c2434;
  --text-body: #3d4a5c;
  --text-weak: #6b7a8d;
  --border: #e4e8f0;
  --radius: 18px;
  --radius-sm: 12px;
  --radius-lg: 24px;
  --shadow: 0 6px 24px rgba(15, 28, 63, 0.07);
  --shadow-lg: 0 16px 48px rgba(15, 28, 63, 0.12);
  --transition: all 0.3s ease;
}

/* ===== Reset & Base ===== */
*, *::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;
  font-size: 16px;
  line-height: 1.7;
  color: var(--text-body);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
img {
  max-width: 100%;
  display: block;
}
a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition);
}
ul, ol {
  list-style: none;
}
button {
  font-family: inherit;
  border: none;
  cursor: pointer;
  background: none;
}
input {
  font-family: inherit;
  border: none;
  outline: none;
}
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== Header & Nav ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 1px 12px rgba(15, 28, 63, 0.05);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: 24px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 18px;
  font-weight: 800;
  color: var(--primary);
  white-space: nowrap;
  letter-spacing: -0.01em;
}
.logo i {
  font-size: 24px;
  color: var(--accent);
  transition: transform 0.4s ease;
}
.logo:hover i {
  transform: rotate(-12deg) scale(1.08);
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 6px;
  flex: 1;
  margin-left: 18px;
}
.main-nav a {
  padding: 9px 16px;
  border-radius: 10px;
  font-size: 15px;
  font-weight: 600;
  color: var(--text-body);
  white-space: nowrap;
  transition: var(--transition);
}
.main-nav a:hover {
  color: var(--primary);
  background: rgba(15, 28, 63, 0.05);
}
.main-nav a.active {
  color: var(--primary);
  background: rgba(15, 28, 63, 0.08);
  font-weight: 700;
}
.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}
.search-box {
  display: flex;
  align-items: center;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 5px 5px 5px 16px;
  width: 210px;
  transition: var(--transition);
}
.search-box:focus-within {
  border-color: var(--accent);
  background: #fff;
  box-shadow: 0 0 0 3px rgba(201, 164, 92, 0.14);
}
.search-box input {
  background: transparent;
  flex: 1;
  font-size: 14px;
  color: var(--text);
  min-width: 0;
}
.search-box input::placeholder {
  color: var(--text-weak);
}
.search-box button {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  transition: var(--transition);
  flex-shrink: 0;
}
.search-box button:hover {
  background: var(--accent);
  color: var(--primary);
}
.hamburger {
  display: none;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: var(--bg-alt);
  color: var(--primary);
  font-size: 18px;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}
.hamburger:hover {
  background: rgba(15, 28, 63, 0.1);
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 26px;
  border-radius: 12px;
  font-size: 15px;
  font-weight: 600;
  border: 2px solid transparent;
  transition: var(--transition);
  line-height: 1.4;
  white-space: nowrap;
}
.btn-primary {
  background: var(--primary);
  color: #fff;
}
.btn-primary:hover {
  background: var(--accent);
  color: var(--primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}
.btn-primary:active {
  transform: translateY(0);
}
.btn-accent {
  background: var(--accent);
  color: var(--primary);
}
.btn-accent:hover {
  background: var(--accent-light);
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}
.btn-outline {
  border-color: rgba(15, 28, 63, 0.35);
  color: var(--primary);
  background: transparent;
}
.btn-outline:hover {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
}
.btn-sm {
  padding: 8px 16px;
  font-size: 14px;
  border-radius: 10px;
}
.btn-lg {
  padding: 16px 38px;
  font-size: 16px;
  border-radius: 14px;
}
.btn-white {
  background: #fff;
  color: var(--primary);
  font-size: 13px;
  padding: 9px 20px;
  border-radius: 999px;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.15);
}
.btn-white:hover {
  background: var(--accent);
  color: var(--primary);
  transform: translateY(-2px);
}
.btn:focus-visible {
  outline: 3px solid rgba(201, 164, 92, 0.45);
  outline-offset: 2px;
}

/* ===== Article Hero ===== */
.article-hero {
  position: relative;
  background-size: cover;
  background-position: center;
  padding: 76px 0 60px;
}
.article-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(8, 15, 36, 0.93) 0%, rgba(15, 28, 63, 0.86) 50%, rgba(26, 42, 82, 0.76) 100%);
}
.article-hero-inner {
  position: relative;
  z-index: 2;
  max-width: 900px;
}
.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.65);
  margin-bottom: 24px;
}
.breadcrumb a {
  color: rgba(255, 255, 255, 0.85);
  transition: var(--transition);
}
.breadcrumb a:hover {
  color: var(--accent);
}
.breadcrumb i {
  font-size: 11px;
  color: rgba(255, 255, 255, 0.4);
}
.article-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
  margin-bottom: 18px;
}
.badge {
  display: inline-flex;
  align-items: center;
  padding: 5px 14px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 700;
  background: rgba(255, 255, 255, 0.14);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.22);
  letter-spacing: 0.02em;
}
.badge-accent {
  background: var(--accent);
  color: var(--primary);
  border: none;
}
.meta-time {
  color: rgba(255, 255, 255, 0.8);
  font-size: 14px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.meta-time i {
  font-size: 13px;
}
.article-hero h1 {
  font-size: 40px;
  font-weight: 800;
  color: #fff;
  line-height: 1.35;
  margin-bottom: 18px;
  letter-spacing: -0.02em;
}
.article-summary {
  font-size: 16px;
  color: rgba(255, 255, 255, 0.76);
  line-height: 1.75;
  max-width: 720px;
}

/* ===== Article Section ===== */
.article-section {
  padding: 60px 0;
}
.article-layout {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 40px;
  align-items: start;
}
.article-main {
  background: var(--card-bg);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  overflow: hidden;
  border: 1px solid var(--border);
}
.article-cover {
  width: 100%;
  height: 380px;
  overflow: hidden;
  position: relative;
}
.article-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.article-body {
  padding: 42px 48px 36px;
}
.article-body h2 {
  font-size: 24px;
  color: var(--primary);
  margin: 34px 0 16px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--accent);
  letter-spacing: -0.01em;
}
.article-body h2:first-child {
  margin-top: 0;
}
.article-body h3 {
  font-size: 19px;
  color: var(--primary);
  margin: 28px 0 12px;
}
.article-body p {
  margin-bottom: 18px;
  line-height: 1.9;
  color: var(--text-body);
}
.article-body strong {
  color: var(--primary);
  font-weight: 700;
}
.article-body ul {
  margin: 16px 0 26px;
  padding-left: 8px;
}
.article-body ul li {
  position: relative;
  padding-left: 22px;
  margin-bottom: 10px;
  line-height: 1.8;
  color: var(--text-body);
}
.article-body ul li::before {
  content: "◆";
  position: absolute;
  left: 0;
  color: var(--accent);
  font-size: 9px;
  top: 7px;
}
.article-body blockquote {
  margin: 26px 0;
  padding: 20px 26px;
  background: linear-gradient(135deg, rgba(201, 164, 92, 0.08), rgba(15, 28, 63, 0.03));
  border-left: 4px solid var(--accent);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--text-body);
  font-size: 15px;
  line-height: 1.8;
}
.article-body img {
  border-radius: var(--radius);
  margin: 24px 0;
}
.article-body a {
  color: var(--accent-dark);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.article-body a:hover {
  color: var(--accent);
}
.article-empty {
  padding: 90px 48px;
  text-align: center;
}
.article-empty i {
  font-size: 54px;
  color: var(--accent);
  margin-bottom: 18px;
  display: block;
}
.article-empty h2 {
  font-size: 28px;
  color: var(--primary);
  margin-bottom: 12px;
  font-weight: 800;
}
.article-empty p {
  color: var(--text-weak);
  margin-bottom: 26px;
  font-size: 15px;
}
.article-footer-bar {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 20px 48px;
  border-top: 1px solid var(--border);
  background: var(--bg);
}
.article-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.tag {
  display: inline-block;
  padding: 5px 14px;
  border-radius: 999px;
  background: rgba(201, 164, 92, 0.14);
  color: var(--accent-dark);
  font-size: 13px;
  font-weight: 600;
  transition: var(--transition);
}
.tag:hover {
  background: var(--accent);
  color: var(--primary);
}
.share-icons {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  color: var(--text-weak);
}
.share-icons a {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: #fff;
  border: 1px solid var(--border);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--text-body);
  font-size: 14px;
  transition: var(--transition);
}
.share-icons a:hover {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
  transform: translateY(-2px);
}

/* ===== Sidebar ===== */
.article-sidebar {
  position: sticky;
  top: 96px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.sidebar-card {
  background: var(--card-bg);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
}
.sidebar-card h3 {
  font-size: 17px;
  color: var(--primary);
  margin-bottom: 18px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--accent);
  display: inline-block;
  font-weight: 700;
}
.service-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 0;
  color: var(--text-body);
  font-size: 14px;
  border-bottom: 1px dashed var(--border);
  transition: var(--transition);
}
.service-list li:last-child {
  border-bottom: none;
}
.service-list li i {
  color: var(--accent);
  width: 18px;
  text-align: center;
}
.service-list li:hover {
  padding-left: 6px;
  color: var(--primary);
}
.sidebar-banner {
  position: relative;
  background-size: cover;
  background-position: center;
  color: #fff;
  padding: 36px 28px;
  border: none;
  overflow: hidden;
}
.sidebar-banner::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(160deg, rgba(8, 15, 36, 0.88), rgba(15, 28, 63, 0.72));
}
.sidebar-banner h3,
.sidebar-banner p,
.sidebar-banner a {
  position: relative;
  z-index: 1;
}
.sidebar-banner h3 {
  color: #fff;
  border: none;
  margin-bottom: 12px;
}
.sidebar-banner p {
  color: rgba(255, 255, 255, 0.8);
  font-size: 14px;
  line-height: 1.7;
  margin-bottom: 18px;
}

/* ===== Related Section ===== */
.related-section {
  padding: 70px 0;
  background: var(--bg-alt);
}
.section-head {
  text-align: center;
  margin-bottom: 44px;
}
.section-head h2 {
  font-size: 30px;
  color: var(--primary);
  font-weight: 800;
  letter-spacing: -0.02em;
}
.section-head h2::after {
  content: "";
  display: block;
  width: 48px;
  height: 4px;
  background: var(--accent);
  border-radius: 2px;
  margin: 14px auto 0;
}
.section-head p {
  color: var(--text-weak);
  margin-top: 10px;
  font-size: 15px;
}
.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
}
.related-card {
  background: var(--card-bg);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  transition: var(--transition);
  display: block;
}
.related-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(201, 164, 92, 0.4);
}
.related-card-img {
  height: 184px;
  overflow: hidden;
  position: relative;
}
.related-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.related-card:hover .related-card-img img {
  transform: scale(1.06);
}
.related-card-body {
  padding: 20px 22px 24px;
}
.related-card-body h3 {
  font-size: 16px;
  color: var(--primary);
  margin-bottom: 8px;
  line-height: 1.5;
  font-weight: 700;
  transition: var(--transition);
}
.related-card:hover .related-card-body h3 {
  color: var(--accent-dark);
}
.related-card-body p {
  font-size: 13px;
  color: var(--text-weak);
  line-height: 1.65;
}

/* ===== CTA ===== */
.cta-section {
  padding: 70px 0;
}
.cta-box {
  position: relative;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  border-radius: var(--radius-lg);
  padding: 60px 50px;
  text-align: center;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}
.cta-box::before {
  content: "";
  position: absolute;
  top: -80px;
  right: -60px;
  width: 260px;
  height: 260px;
  border-radius: 50%;
  background: rgba(201, 164, 92, 0.18);
}
.cta-box::after {
  content: "";
  position: absolute;
  bottom: -60px;
  left: -40px;
  width: 180px;
  height: 180px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.05);
}
.cta-box h2 {
  position: relative;
  z-index: 1;
  font-size: 30px;
  color: #fff;
  margin-bottom: 14px;
  font-weight: 800;
  letter-spacing: -0.01em;
}
.cta-box p {
  position: relative;
  z-index: 1;
  color: rgba(255, 255, 255, 0.82);
  font-size: 16px;
  margin-bottom: 28px;
}
.cta-box .btn {
  position: relative;
  z-index: 1;
}

/* ===== FAQ ===== */
.faq-section {
  padding: 70px 0;
  background: var(--bg-alt);
}
.faq-grid {
  max-width: 860px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.faq-item {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: var(--transition);
}
.faq-item:hover {
  border-color: rgba(201, 164, 92, 0.5);
}
.faq-item.active {
  border-color: var(--accent);
  box-shadow: 0 8px 30px rgba(15, 28, 63, 0.1);
}
.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  background: var(--card-bg);
  transition: var(--transition);
  width: 100%;
  text-align: left;
  gap: 16px;
}
.faq-question:hover {
  color: var(--primary);
}
.faq-question i {
  font-size: 14px;
  color: var(--accent);
  transition: transform 0.3s ease;
  flex-shrink: 0;
}
.faq-item.active .faq-question i {
  transform: rotate(45deg);
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease;
}
.faq-answer p {
  padding: 0 24px 22px;
  color: var(--text-weak);
  font-size: 14px;
  line-height: 1.85;
}

/* ===== Footer ===== */
.site-footer {
  background: #0a1120;
  color: #94a3b8;
  padding: 60px 0 30px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}
.footer-brand h3 {
  color: #fff;
  font-size: 20px;
  margin-bottom: 14px;
  font-weight: 800;
}
.footer-brand p {
  font-size: 14px;
  line-height: 1.8;
  max-width: 360px;
  color: #8a9bb5;
}
.footer-col h4 {
  color: #fff;
  font-size: 16px;
  margin-bottom: 18px;
  font-weight: 700;
}
.footer-col ul li {
  margin-bottom: 10px;
}
.footer-col ul li a {
  color: #94a3b8;
  font-size: 14px;
  transition: var(--transition);
}
.footer-col ul li a:hover {
  color: var(--accent);
  padding-left: 6px;
}
.footer-contact li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: #94a3b8;
  line-height: 1.7;
}
.footer-contact i {
  color: var(--accent);
  width: 18px;
  text-align: center;
  flex-shrink: 0;
}
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 24px;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 10px;
  font-size: 13px;
  color: #7a8ba3;
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .header-inner {
    gap: 16px;
  }
  .search-box {
    width: 160px;
  }
  .article-layout {
    grid-template-columns: 1fr;
  }
  .article-sidebar {
    position: static;
    flex-direction: row;
    flex-wrap: wrap;
  }
  .sidebar-card {
    flex: 1;
    min-width: 240px;
  }
  .related-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-grid {
    grid-template-columns: 1.4fr 1fr 1fr;
    gap: 30px;
  }
}
@media (max-width: 768px) {
  .header-inner {
    height: 64px;
  }
  .main-nav {
    display: none;
  }
  .main-nav.mobile-open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: #fff;
    padding: 12px 20px;
    border-bottom: 1px solid var(--border);
    box-shadow: 0 16px 30px rgba(15, 28, 63, 0.12);
    z-index: 998;
    gap: 2px;
  }
  .main-nav.mobile-open a {
    padding: 12px 10px;
    border-radius: 10px;
    font-size: 15px;
    width: 100%;
  }
  .search-box {
    display: none;
  }
  .header-actions .btn-outline {
    display: none;
  }
  .hamburger {
    display: flex;
  }
  .header-actions .btn-primary {
    padding: 8px 14px;
    font-size: 13px;
  }
  .article-hero {
    padding: 52px 0 42px;
  }
  .article-hero h1 {
    font-size: 26px;
  }
  .article-summary {
    font-size: 14px;
  }
  .article-cover {
    height: 240px;
  }
  .article-body {
    padding: 26px 22px 24px;
  }
  .article-footer-bar {
    padding: 16px 22px;
  }
  .article-empty {
    padding: 60px 24px;
  }
  .cta-box {
    padding: 42px 24px;
  }
  .cta-box h2 {
    font-size: 24px;
  }
  .section-head h2 {
    font-size: 24px;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .faq-question {
    font-size: 15px;
    padding: 18px 20px;
  }
  .faq-answer p {
    padding: 0 20px 18px;
  }
  .site-footer {
    padding: 44px 0 24px;
  }
}
@media (max-width: 520px) {
  .container {
    padding: 0 16px;
  }
  .related-grid {
    grid-template-columns: 1fr;
  }
  .breadcrumb {
    font-size: 12px;
    gap: 6px;
  }
  .article-meta {
    gap: 10px;
  }
  .logo {
    font-size: 15px;
  }
  .logo i {
    font-size: 20px;
  }
  .article-hero h1 {
    font-size: 22px;
  }
  .article-cover {
    height: 200px;
  }
  .article-body h2 {
    font-size: 20px;
  }
  .sidebar-card {
    min-width: 100%;
  }
  .cta-box {
    padding: 36px 20px;
    border-radius: 16px;
  }
  .cta-box h2 {
    font-size: 21px;
  }
  .section-head h2 {
    font-size: 21px;
  }
  .footer-bottom {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }
}