/* roulang page: index */
:root{
  --primary:#2563eb;--primary-dark:#1e40af;--accent:#0d9488;--bg:#f5f7fb;
  --text:#14213d;--muted:#5b6b7c;--border:#e2e8f0;--radius:16px;
  --shadow:0 8px 30px rgba(20,33,61,.08);--shadow-lg:0 16px 50px rgba(20,33,61,.14);
  --max-w:1280px;
}
*{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","Helvetica Neue",Arial,sans-serif;background:var(--bg);color:var(--text);line-height:1.7;font-size:16px}
a{text-decoration:none;color:inherit;transition:color .2s ease,border-color .2s ease,background .2s ease}
img{max-width:100%;height:auto;display:block}
button,input{font-family:inherit;font-size:inherit}
ul{list-style:none}
.container{max-width:var(--max-w);margin:0 auto;padding:0 24px}
.section{padding:80px 0}
.section-head{text-align:center;margin-bottom:48px}
.section-head .eyebrow{display:inline-flex;align-items:center;gap:8px;background:#eef2ff;color:#4f46e5;font-size:13px;font-weight:600;padding:6px 16px;border-radius:999px;letter-spacing:.5px;margin-bottom:16px}
.section-head .eyebrow::before{content:'';width:6px;height:6px;background:#4f46e5;border-radius:50%}
.section-head h2{font-size:clamp(1.6rem,3vw,2.4rem);font-weight:800;letter-spacing:-.02em;margin-bottom:12px}
.section-head p{color:var(--muted);max-width:640px;margin:0 auto;font-size:1.05rem}
.site-header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.92);backdrop-filter:blur(18px);border-bottom:1px solid rgba(226,232,240,.8);transition:box-shadow .3s}
.site-header.scrolled{box-shadow:0 4px 20px rgba(0,0,0,.06)}
.header-top{display:flex;align-items:center;justify-content:space-between;height:68px}
.logo{display:flex;align-items:center;gap:12px;font-weight:800;font-size:1.15rem;color:var(--text);white-space:nowrap}
.logo-icon{display:flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:12px;background:linear-gradient(135deg,#2563eb,#0d9488);color:#fff;font-size:1rem;box-shadow:0 4px 12px rgba(37,99,235,.3)}
.logo-text{background:linear-gradient(135deg,#1e40af,#0d9488);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.main-nav{display:flex;align-items:center;gap:4px}
.nav-link{display:inline-block;padding:8px 18px;border-radius:10px;font-size:.95rem;font-weight:500;color:var(--muted);transition:all .25s}
.nav-link:hover{color:var(--primary);background:#eef4ff}
.nav-link.active{color:var(--primary);background:#eef4ff;font-weight:600}
.header-right{display:flex;align-items:center;gap:12px}
.search-box{position:relative}
.search-box input{width:220px;height:38px;border:1px solid var(--border);border-radius:999px;padding:0 40px 0 16px;font-size:.9rem;background:#f8fafc;transition:all .25s;outline:none}
.search-box input:focus{border-color:var(--primary);background:#fff;box-shadow:0 0 0 4px rgba(37,99,235,.12)}
.search-box i{position:absolute;right:14px;top:50%;transform:translateY(-50%);color:#94a3b8;font-size:.85rem}
.menu-toggle{display:none;background:none;border:none;font-size:1.4rem;color:var(--text);cursor:pointer;width:42px;height:42px;border-radius:10px;align-items:center;justify-content:center}
@media(max-width:768px){
  .main-nav,.search-box{display:none}
  .menu-toggle{display:flex}
  .mobile-nav{position:fixed;top:68px;left:0;right:0;background:#fff;border-bottom:1px solid var(--border);padding:16px 24px;display:flex;flex-direction:column;gap:8px;z-index:99;box-shadow:0 10px 30px rgba(0,0,0,.08)}
  .mobile-nav.closed{display:none}
  .mobile-nav .nav-link{padding:12px 16px;font-size:1rem;border-radius:10px}
}
.hero{position:relative;padding:100px 0 0;background:linear-gradient(180deg,#f0f4ff 0%,#f8fafc 100%);overflow:hidden}
@media(min-width:1200px){.hero{padding:140px 0 0}}
.hero-bg{position:absolute;inset:0;background-image:url('/assets/images/backpic/back-1.png');background-size:cover;background-position:center;opacity:.22;z-index:0}
.hero-inner{position:relative;z-index:1;display:grid;grid-template-columns:1.2fr .8fr;gap:60px;align-items:center;padding-bottom:80px}
.hero-badge{display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.8);border:1px solid #dbeafe;color:#1d4ed8;padding:6px 16px;border-radius:999px;font-size:.85rem;font-weight:500;margin-bottom:24px;box-shadow:0 2px 8px rgba(37,99,235,.08)}
.hero-badge i{color:#14b8a6}
.hero h1{font-size:clamp(2rem,5vw,3.4rem);line-height:1.18;font-weight:800;letter-spacing:-.03em;margin-bottom:20px}
.hero h1 .gradient{background:linear-gradient(120deg,#1e40af,#0d9488);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.hero-desc{font-size:1.1rem;color:var(--muted);max-width:520px;margin-bottom:32px;line-height:1.75}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:8px;padding:13px 28px;border-radius:12px;font-size:1rem;font-weight:600;border:none;cursor:pointer;transition:all .25s;outline:none}
.btn-primary{background:linear-gradient(135deg,#2563eb,#0d9488);color:#fff;box-shadow:0 8px 24px rgba(37,99,235,.3)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 32px rgba(37,99,235,.4)}
.btn-outline{background:transparent;border:2px solid #cbd5e1;color:var(--text)}
.btn-outline:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-2px)}
.hero-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:40px}
.hero-stat{background:rgba(255,255,255,.85);border:1px solid rgba(226,232,240,.9);border-radius:14px;padding:16px;text-align:center;backdrop-filter:blur(6px)}
.hero-stat .num{font-size:1.4rem;font-weight:800;color:var(--primary)}
.hero-stat .label{font-size:.8rem;color:var(--muted);margin-top:2px}
.hero-visual{position:relative}
.hero-card-main{background:#fff;border-radius:20px;padding:32px;box-shadow:var(--shadow-lg);border:1px solid var(--border);position:relative}
.hero-card-main::before{content:'';position:absolute;top:-1px;left:24px;right:24px;height:4px;background:linear-gradient(90deg,#2563eb,#0d9488);border-radius:20px 20px 0 0}
.hero-card-main .hc-icon{width:56px;height:56px;border-radius:14px;background:#eef4ff;color:#2563eb;display:flex;align-items:center;justify-content:center;font-size:1.4rem;margin-bottom:18px}
.hero-card-main h3{font-size:1.1rem;font-weight:700;margin-bottom:8px}
.hero-card-main p{color:var(--muted);font-size:.9rem}
.hero-card-float{position:absolute;background:#fff;border-radius:14px;padding:14px 18px;box-shadow:var(--shadow);border:1px solid var(--border);display:flex;align-items:center;gap:10px;font-size:.85rem;animation:float 4s ease-in-out infinite}
.hero-card-float.f1{bottom:-18px;left:-20px}
.hero-card-float.f2{top:40px;right:-24px;animation-delay:1.5s}
.hero-card-float i{color:#14b8a6;font-size:1.1rem}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-8px)}}
@media(max-width:1024px){
  .hero-inner{grid-template-columns:1fr;gap:48px}
  .hero-visual{max-width:520px;margin:0 auto}
}
@media(max-width:768px){
  .hero{padding:80px 0 0}
  .hero-stats{grid-template-columns:repeat(3,1fr)}
  .hero-card-float.f1{left:-8px}.hero-card-float.f2{right:-8px}
}
.feature-card{background:#fff;border:1px solid var(--border);border-radius:18px;padding:32px 28px;transition:all .3s;position:relative;overflow:hidden}
.feature-card::after{content:'';position:absolute;bottom:0;left:0;right:0;height:3px;background:linear-gradient(90deg,#2563eb,#0d9488);transform:scaleX(0);transform-origin:left;transition:transform .3s}
.feature-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.feature-card:hover::after{transform:scaleX(1)}
.feature-icon{width:56px;height:56px;border-radius:14px;display:flex;align-items:center;justify-content:center;font-size:1.3rem;margin-bottom:20px}
.feature-icon.blue{background:#eef4ff;color:#2563eb}
.feature-icon.green{background:#ecfdf5;color:#14b8a6}
.feature-icon.orange{background:#fffbeb;color:#d97706}
.feature-card h3{font-size:1.05rem;font-weight:700;margin-bottom:10px}
.feature-card p{color:var(--muted);font-size:.92rem;line-height:1.7}
.cat-card{position:relative;border-radius:20px;overflow:hidden;background:#fff;box-shadow:var(--shadow);transition:all .35s;border:1px solid var(--border)}
.cat-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.cat-card .cat-img{height:220px;overflow:hidden;position:relative}
.cat-card .cat-img img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.cat-card:hover .cat-img img{transform:scale(1.05)}
.cat-card .cat-img::after{content:'';position:absolute;inset:0;background:linear-gradient(180deg,transparent 60%,rgba(0,0,0,.45))}
.cat-card .cat-tag{position:absolute;top:16px;left:16px;z-index:2;background:rgba(255,255,255,.92);color:#1e40af;font-size:.75rem;font-weight:600;padding:5px 14px;border-radius:999px}
.cat-card .cat-body{padding:24px}
.cat-card .cat-body h3{font-size:1.15rem;font-weight:700;margin-bottom:8px}
.cat-card .cat-body p{color:var(--muted);font-size:.9rem;line-height:1.7}
.cat-card .cat-link{display:inline-flex;align-items:center;gap:6px;margin-top:16px;font-size:.9rem;font-weight:600;color:var(--primary)}
.cat-card .cat-link i{transition:transform .2s}
.cat-card:hover .cat-link i{transform:translateX(4px)}
.news-card{background:#fff;border:1px solid var(--border);border-radius:16px;overflow:hidden;transition:all .3s;display:flex;flex-direction:column}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.news-card .news-img{height:170px;overflow:hidden;position:relative}
.news-card .news-img img{width:100%;height:100%;object-fit:cover}
.news-card .news-badge{position:absolute;top:12px;left:12px;background:rgba(37,99,235,.92);color:#fff;font-size:.72rem;padding:3px 12px;border-radius:999px;font-weight:500}
.news-card .news-body{padding:20px;flex:1;display:flex;flex-direction:column}
.news-card .news-title{font-size:.95rem;font-weight:600;line-height:1.5;margin-bottom:10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-card .news-meta{display:flex;align-items:center;gap:12px;color:#94a3b8;font-size:.78rem;margin-top:auto}
.news-card .news-meta i{font-size:.7rem}
.empty-tip{text-align:center;padding:48px;color:var(--muted);background:#fff;border-radius:16px;border:1px dashed var(--border)}
.stat-block{background:linear-gradient(135deg,#1e3a8a,#0f766e);border-radius:24px;padding:48px;position:relative;overflow:hidden}
.stat-block::before{content:'';position:absolute;top:-60px;right:-60px;width:200px;height:200px;background:rgba(255,255,255,.06);border-radius:50%}
.stat-block::after{content:'';position:absolute;bottom:-40px;left:10%;width:120px;height:120px;background:rgba(255,255,255,.04);border-radius:50%}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:32px;position:relative;z-index:1}
.stat-item{text-align:center;color:#fff;padding:20px}
.stat-item .num{font-size:2.4rem;font-weight:800;line-height:1.1;letter-spacing:-.02em}
.stat-item .num span{font-size:1.4rem;font-weight:600;margin-left:2px}
.stat-item .lbl{font-size:.85rem;opacity:.8;margin-top:8px}
@media(max-width:1024px){.stat-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:640px){.stat-grid{grid-template-columns:1fr 1fr;gap:16px}.stat-item .num{font-size:1.6rem}}
.flow-wrap{background:linear-gradient(180deg,#fff,#f8fafc);border-radius:24px;border:1px solid var(--border);padding:48px 32px}
.flow-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;position:relative}
.flow-step{text-align:center;position:relative;padding:24px 12px}
.flow-step .step-num{width:44px;height:44px;border-radius:12px;background:linear-gradient(135deg,#2563eb,#0d9488);color:#fff;font-weight:800;font-size:1.1rem;display:flex;align-items:center;justify-content:center;margin:0 auto 16px;box-shadow:0 6px 18px rgba(37,99,235,.25)}
.flow-step .step-icon{font-size:1.6rem;color:var(--primary);margin-bottom:12px}
.flow-step h4{font-size:.95rem;font-weight:700;margin-bottom:6px}
.flow-step p{font-size:.8rem;color:var(--muted)}
.flow-arrow{position:absolute;top:50%;right:-14px;transform:translateY(-50%);color:#cbd5e1;font-size:1.2rem;z-index:2}
@media(max-width:1024px){.flow-grid{grid-template-columns:repeat(2,1fr)}.flow-arrow{display:none}}
@media(max-width:640px){.flow-grid{grid-template-columns:1fr}}
.faq-item{background:#fff;border:1px solid var(--border);border-radius:14px;margin-bottom:12px;overflow:hidden;transition:box-shadow .25s}
.faq-item:hover{box-shadow:var(--shadow)}
.faq-q{display:flex;align-items:center;justify-content:space-between;padding:20px 24px;cursor:pointer;font-weight:600;font-size:.98rem}
.faq-q i{color:#94a3b8;transition:transform .3s;font-size:.85rem}
.faq-item.open .faq-q i{transform:rotate(180deg);color:var(--primary)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease;padding:0 24px;color:var(--muted);font-size:.9rem;line-height:1.75}
.faq-item.open .faq-a{max-height:300px;padding:0 24px 20px}
.cta-band{position:relative;border-radius:24px;overflow:hidden;background:linear-gradient(135deg,#1e3a8a,#0f766e);padding:64px 48px;text-align:center;color:#fff}
.cta-band::before{content:'';position:absolute;top:-50px;left:-50px;width:200px;height:200px;background:rgba(255,255,255,.05);border-radius:50%}
.cta-band::after{content:'';position:absolute;bottom:-80px;right:-20px;width:240px;height:240px;background:rgba(255,255,255,.04);border-radius:50%}
.cta-band h2{font-size:2rem;font-weight:800;margin-bottom:12px;position:relative;z-index:1}
.cta-band p{opacity:.9;margin-bottom:32px;position:relative;z-index:1}
.cta-band .btn{position:relative;z-index:1}
.cta-band .btn-white{background:#fff;color:#1e3a8a}
.cta-band .btn-white:hover{background:#f0f9ff;transform:translateY(-2px)}
.site-footer{background:#0f172a;color:#94a3b8;padding-top:64px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:48px;padding-bottom:40px}
.footer-brand .logo{color:#fff;margin-bottom:16px}
.footer-brand .logo-icon{background:linear-gradient(135deg,#2563eb,#0d9488)}
.footer-brand p{font-size:.85rem;line-height:1.8;max-width:360px}
.footer-title{color:#fff;font-size:.9rem;font-weight:700;margin-bottom:18px;letter-spacing:.05em}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:.85rem;color:#94a3b8;transition:all .2s}
.footer-links a:hover{color:#fff;padding-left:4px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.08);padding:24px 0;text-align:center;font-size:.8rem;color:#64748b}
@media(max-width:1024px){.footer-grid{grid-template-columns:1fr 1fr}}
@media(max-width:640px){.footer-grid{grid-template-columns:1fr;gap:32px}}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:.85rem;color:var(--muted);flex-wrap:wrap}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb i{font-size:.7rem;color:#cbd5e1}
.page-banner{position:relative;padding:80px 0;background-image:url('/assets/images/backpic/back-2.png');background-size:cover;background-position:center}
.page-banner::before{content:'';position:absolute;inset:0;background:linear-gradient(135deg,rgba(15,23,42,.82),rgba(15,23,42,.55))}
.page-banner .container{position:relative;z-index:1}
.page-banner h1{color:#fff;font-size:clamp(1.8rem,4vw,2.6rem);font-weight:800;margin-bottom:12px}
.page-banner .desc{color:rgba(255,255,255,.85);max-width:640px;font-size:1rem}
.article-card{background:#fff;border-radius:16px;border:1px solid var(--border);padding:28px;transition:all .3s;height:100%}
.article-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-4px)}
.article-card .cat{font-size:.75rem;color:var(--primary);background:#eef4ff;padding:3px 12px;border-radius:999px;display:inline-block;margin-bottom:12px;font-weight:600}
.article-card h3{font-size:1.05rem;font-weight:700;margin-bottom:8px;line-height:1.55}
.article-card p{font-size:.87rem;color:var(--muted);line-height:1.7;margin-bottom:14px}
.article-card .meta{display:flex;gap:16px;font-size:.78rem;color:#94a3b8}
.article-card .meta i{font-size:.75rem;margin-right:4px}
.side-card{background:#fff;border:1px solid var(--border);border-radius:16px;padding:24px;margin-bottom:24px}
.side-card .side-title{font-size:1rem;font-weight:700;margin-bottom:18px;padding-bottom:12px;border-bottom:2px solid #eef2ff;display:flex;align-items:center;gap:8px}
.side-card .side-title i{color:var(--primary)}
.side-list li{display:flex;align-items:center;gap:10px;padding:10px 0;border-bottom:1px solid #f1f5f9;font-size:.87rem}
.side-list li:last-child{border-bottom:none}
.side-list li i{color:#14b8a6;font-size:.75rem}
.side-list li:hover{color:var(--primary)}
.star-rate{display:flex;gap:2px;color:#f59e0b;font-size:.8rem}
.article-body{background:#fff;border-radius:20px;padding:40px;border:1px solid var(--border);box-shadow:var(--shadow)}
.article-body h1{font-size:1.8rem;font-weight:800;line-height:1.4;margin-bottom:16px}
.article-meta-bar{display:flex;flex-wrap:wrap;gap:16px;align-items:center;padding-bottom:20px;border-bottom:1px solid #f1f5f9;margin-bottom:24px;color:#94a3b8;font-size:.85rem}
.article-meta-bar .badge{background:#eef4ff;color:#1d4ed8;padding:4px 14px;border-radius:999px;font-size:.75rem;font-weight:600}
.article-content{font-size:1rem;line-height:1.9;color:#334155}
.article-content h2{font-size:1.3rem;font-weight:700;margin:28px 0 14px}
.article-content p{margin-bottom:16px}
.article-content img{border-radius:12px;margin:20px 0}
.article-content ul{margin:16px 0 20px 20px;list-style:disc}
.article-content ul li{margin-bottom:8px}
.not-found{text-align:center;padding:80px 0}
.not-found i{font-size:3rem;color:#94a3b8;margin-bottom:20px}
.not-found h1{font-size:1.6rem;margin-bottom:10px}
.not-found p{color:var(--muted);margin-bottom:24px}
@media(max-width:768px){
  .section{padding:48px 0}
  .article-body{padding:24px}
  .stat-block{padding:32px 20px}
  .cta-band{padding:40px 24px}
}

/* roulang page: article */
:root {
  --primary: #2563eb;
  --primary-dark: #1e40af;
  --primary-light: #dbeafe;
  --accent: #06b6d4;
  --accent-dark: #0891b2;
  --night: #0f172a;
  --night-light: #1e293b;
  --body-bg: #f8fafc;
  --text-main: #1e293b;
  --text-muted: #64748b;
  --border: #e2e8f0;
  --radius: 12px;
  --shadow-soft: 0 4px 24px rgba(15, 23, 42, 0.06);
  --shadow-lift: 0 12px 40px rgba(37, 99, 235, 0.12);
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { background: var(--body-bg); color: var(--text-main); font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif; line-height: 1.7; margin: 0; }
img { max-width: 100%; height: auto; display: block; }
a { color: var(--primary); text-decoration: none; transition: color 0.2s ease; }
a:hover { color: var(--primary-dark); }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* Header & Nav */
.site-header { position: sticky; top: 0; z-index: 50; background: rgba(255,255,255,0.92); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); border-bottom: 1px solid var(--border); }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 72px; gap: 20px; }
.logo { display: flex; align-items: center; gap: 10px; font-size: 20px; font-weight: 800; color: var(--night); letter-spacing: -0.02em; }
.logo-icon { width: 38px; height: 38px; border-radius: 10px; background: linear-gradient(135deg, var(--primary), var(--accent)); display: flex; align-items: center; justify-content: center; color: #fff; font-size: 16px; flex-shrink: 0; }
.main-nav { display: flex; align-items: center; gap: 4px; }
.nav-link { display: inline-flex; align-items: center; gap: 6px; padding: 8px 14px; border-radius: 999px; font-size: 14px; font-weight: 600; color: var(--text-muted); transition: all 0.2s ease; }
.nav-link:hover { color: var(--primary); background: var(--primary-light); }
.nav-link.active { color: var(--primary); background: var(--primary-light); }
.header-right { display: flex; align-items: center; gap: 12px; }
.header-search { display: flex; align-items: center; background: #f1f5f9; border-radius: 999px; padding: 6px 6px 6px 16px; border: 1px solid transparent; transition: all 0.2s ease; }
.header-search:focus-within { background: #fff; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(37,99,235,0.15); }
.header-search input { border: none; outline: none; background: transparent; font-size: 13px; width: 140px; color: var(--text-main); }
.header-search button { background: var(--primary); color: #fff; border: none; border-radius: 999px; padding: 6px 14px; font-size: 13px; cursor: pointer; transition: background 0.2s ease; }
.header-search button:hover { background: var(--primary-dark); }
.menu-toggle { display: none; width: 42px; height: 42px; border: none; background: var(--primary-light); border-radius: 10px; color: var(--primary); font-size: 18px; cursor: pointer; align-items: center; justify-content: center; }
.mobile-menu { display: none; }

@media (max-width: 768px) {
  .main-nav, .header-search { display: none; }
  .menu-toggle { display: flex; }
  .mobile-menu { display: block; }
  .mobile-menu.open { display: block; }
  .mobile-menu .nav-link { display: block; padding: 12px 24px; border-radius: 0; border-bottom: 1px solid var(--border); font-size: 15px; }
  .header-inner { height: 62px; }
}

/* Hero / Article Banner */
.article-banner { position: relative; padding: 80px 0 56px; background: linear-gradient(135deg, #0f172a 0%, #1e3a8a 55%, #0e7490 100%); overflow: hidden; }
.article-banner::before { content: ''; position: absolute; inset: 0; background-image: url('/assets/images/backpic/back-1.png'); background-size: cover; background-position: center; opacity: 0.25; }
.article-banner .container { position: relative; z-index: 1; }
.article-breadcrumb { display: flex; align-items: center; gap: 10px; color: rgba(255,255,255,0.6); font-size: 13px; margin-bottom: 20px; flex-wrap: wrap; }
.article-breadcrumb a { color: rgba(255,255,255,0.8); }
.article-breadcrumb a:hover { color: #fff; }
.article-banner h1 { color: #fff; font-size: 38px; font-weight: 800; line-height: 1.3; margin: 0 0 16px; max-width: 860px; letter-spacing: -0.02em; }
.article-banner .meta { display: flex; align-items: center; gap: 20px; color: rgba(255,255,255,0.75); font-size: 14px; flex-wrap: wrap; }
.article-banner .meta span { display: inline-flex; align-items: center; gap: 6px; }
.banner-tag { display: inline-flex; align-items: center; background: rgba(255,255,255,0.15); border: 1px solid rgba(255,255,255,0.2); backdrop-filter: blur(6px); color: #fff; padding: 4px 14px; border-radius: 999px; font-size: 13px; font-weight: 600; }

/* Main Article */
.article-main { padding: 64px 0 80px; }
.article-layout { display: grid; grid-template-columns: 1fr 360px; gap: 48px; align-items: start; }
.article-card { background: #fff; border-radius: 16px; box-shadow: var(--shadow-soft); border: 1px solid var(--border); overflow: hidden; }
.article-content { padding: 40px; font-size: 16px; line-height: 1.9; color: #334155; }
.article-content p { margin: 0 0 20px; }
.article-content h2 { font-size: 24px; font-weight: 800; color: var(--night); margin: 40px 0 16px; padding-left: 16px; border-left: 4px solid var(--primary); }
.article-content h3 { font-size: 19px; font-weight: 700; color: var(--night); margin: 28px 0 12px; }
.article-content ul, .article-content ol { margin: 0 0 20px; padding-left: 24px; }
.article-content li { margin-bottom: 8px; }
.article-content img { border-radius: 12px; margin: 24px 0; }
.article-content .notice-box { background: #eff6ff; border-left: 4px solid var(--primary); padding: 16px 20px; border-radius: 0 10px 10px 0; margin: 24px 0; }
.article-content .warning-box { background: #fff7ed; border-left: 4px solid #f59e0b; padding: 16px 20px; border-radius: 0 10px 10px 0; margin: 24px 0; }

/* Sidebar */
.article-sidebar { display: flex; flex-direction: column; gap: 24px; }
.side-card { background: #fff; border-radius: 14px; border: 1px solid var(--border); box-shadow: var(--shadow-soft); padding: 28px; }
.side-card-title { display: flex; align-items: center; gap: 10px; font-size: 17px; font-weight: 800; color: var(--night); margin: 0 0 20px; }
.side-card-title .icon-box { width: 34px; height: 34px; border-radius: 9px; background: var(--primary-light); color: var(--primary); display: flex; align-items: center; justify-content: center; font-size: 14px; }
.side-list { list-style: none; padding: 0; margin: 0; }
.side-list li + li { border-top: 1px solid var(--border); }
.side-list a { display: block; padding: 14px 0; color: var(--text-main); font-size: 14px; font-weight: 500; }
.side-list a:hover { color: var(--primary); }
.side-list .date { display: block; font-size: 12px; color: var(--text-muted); margin-top: 4px; }
.cta-box { background: linear-gradient(135deg, var(--primary), var(--accent)); border-radius: 14px; padding: 32px 28px; color: #fff; position: relative; overflow: hidden; }
.cta-box::before { content: ''; position: absolute; inset: 0; background-image: url('/assets/images/backpic/back-2.png'); background-size: cover; opacity: 0.12; }
.cta-box > * { position: relative; z-index: 1; }
.cta-box h3 { margin: 0 0 8px; font-size: 20px; font-weight: 800; }
.cta-box p { margin: 0 0 20px; font-size: 14px; opacity: 0.85; }
.cta-btn { display: inline-flex; align-items: center; gap: 8px; background: #fff; color: var(--primary); font-weight: 800; font-size: 14px; padding: 10px 22px; border-radius: 999px; transition: transform 0.2s ease, box-shadow 0.2s ease; }
.cta-btn:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(255,255,255,0.25); color: var(--primary-dark); }

/* Footer */
.site-footer { background: var(--night); color: #94a3b8; padding: 60px 0 0; margin-top: 0; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1.2fr; gap: 40px; padding-bottom: 48px; }
.footer-brand .logo { color: #fff; margin-bottom: 16px; }
.footer-brand p { font-size: 14px; line-height: 1.8; color: #94a3b8; max-width: 360px; margin: 0; }
.footer-title { color: #fff; font-size: 15px; font-weight: 700; margin-bottom: 16px; }
.footer-links { display: flex; flex-direction: column; gap: 10px; }
.footer-links a { color: #94a3b8; font-size: 14px; }
.footer-links a:hover { color: #fff; }
.footer-links span { display: flex; align-items: center; gap: 8px; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.08); padding: 20px 0; text-align: center; font-size: 13px; color: #64748b; }
.footer-bottom p { margin: 0; }

@media (max-width: 768px) {
  .article-layout { grid-template-columns: 1fr; }
  .article-content { padding: 24px; }
  .article-banner h1 { font-size: 28px; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .article-banner { padding: 48px 0 40px; }
  .mobile-menu { background: #fff; border-bottom: 1px solid var(--border); box-shadow: var(--shadow-soft); }
}
@media (max-width: 520px) {
  .article-banner h1 { font-size: 22px; }
  .article-content { padding: 20px; font-size: 15px; }
  .article-banner .meta { gap: 10px; font-size: 12px; flex-direction: column; align-items: flex-start; }
}

/* roulang page: category1 */
:root {
    --color-brand-500: #2d8bff;
    --color-brand-600: #166bf4;
    --color-brand-700: #0e53e0;
    --color-dark-bg: #0b1120;
    --color-dark-card: #101a35;
    --color-text: #0f172a;
    --color-text-weak: #64748b;
    --color-border: #e2e8f0;
    --radius-sm: 0.5rem;
    --radius-md: 0.75rem;
    --radius-lg: 1rem;
    --shadow-card: 0 2px 12px rgba(15, 23, 42, 0.08);
    --shadow-hover: 0 12px 32px rgba(15, 23, 42, 0.14);
  }

  /* base reset */
  * { box-sizing: border-box; margin: 0; padding: 0; }
  body {
    font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', system-ui, -apple-system, sans-serif;
    color: var(--color-text);
    font-size: 16px;
    line-height: 1.7;
    background: #ffffff;
    -webkit-font-smoothing: antialiased;
  }
  img { max-width: 100%; height: auto; display: block; }
  a { color: inherit; text-decoration: none; }
  button { font-family: inherit; }

  .container-content {
    max-width: 1200px;
    margin: 0 auto;
    padding-left: 1.25rem;
    padding-right: 1.25rem;
  }

  /* hero */
  .hero-category {
    position: relative;
    background-color: #0b1120;
    background-image: linear-gradient(135deg, rgba(11,17,32,0.94) 0%, rgba(14,30,66,0.88) 55%, rgba(22,107,244,0.55) 100%), url('/assets/images/backpic/back-2.png');
    background-size: cover;
    background-position: center;
    padding: 5.5rem 0 4.5rem;
    color: #fff;
    overflow: hidden;
  }
  .hero-category::after {
    content: '';
    position: absolute;
    bottom: -60px;
    right: -60px;
    width: 260px;
    height: 260px;
    border-radius: 50%;
    background: rgba(45, 139, 255, 0.18);
    filter: blur(60px);
    pointer-events: none;
  }
  .hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(255,255,255,0.12);
    border: 1px solid rgba(255,255,255,0.18);
    color: #dbeafe;
    padding: 0.35rem 1rem;
    border-radius: 9999px;
    font-size: 0.875rem;
    font-weight: 500;
    backdrop-filter: blur(6px);
  }

  /* cards */
  .card-item {
    background: #fff;
    border: 1px solid #e2e8f0;
    border-radius: 1rem;
    box-shadow: var(--shadow-card);
    overflow: hidden;
    transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
  }
  .card-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
    border-color: #bae0ff;
  }
  .step-card {
    position: relative;
    background: #fff;
    border: 1px solid #e2e8f0;
    border-radius: 1rem;
    padding: 1.75rem 1.5rem;
    transition: all 0.25s ease;
  }
  .step-card:hover {
    box-shadow: var(--shadow-hover);
    transform: translateY(-3px);
    border-color: #bae0ff;
  }
  .step-num {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #2d8bff, #166bf4);
    color: #fff;
    font-weight: 700;
    font-size: 1.25rem;
    border-radius: 14px;
    margin-bottom: 1rem;
    box-shadow: 0 6px 16px rgba(22, 107, 244, 0.25);
  }

  /* sticky nav */
  .site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(255,255,255,0.92);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(226,232,240,0.7);
    transition: box-shadow 0.2s ease;
  }
  .site-header.scrolled {
    box-shadow: 0 4px 20px rgba(15,23,42,0.08);
  }
  .nav-link {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    padding: 0.4rem 0.9rem;
    font-size: 0.9375rem;
    font-weight: 500;
    color: #475569;
    border-radius: 0.5rem;
    transition: all 0.2s ease;
    white-space: nowrap;
  }
  .nav-link:hover {
    color: #166bf4;
    background: #f0f7ff;
  }
  .nav-link.active {
    color: #fff;
    background: linear-gradient(135deg, #166bf4, #2d8bff);
    box-shadow: 0 4px 12px rgba(22, 107, 244, 0.3);
  }
  .logo-text-nav {
    font-size: 1.1rem;
    font-weight: 800;
    background: linear-gradient(120deg, #166bf4, #2d8bff);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    white-space: nowrap;
  }

  /* faq */
  .faq-item {
    border: 1px solid #e2e8f0;
    border-radius: 0.875rem;
    background: #ffffff;
    transition: all 0.2s ease;
  }
  .faq-item:hover {
    border-color: #bae0ff;
    box-shadow: 0 4px 16px rgba(15,23,42,0.06);
  }
  .faq-item summary {
    cursor: pointer;
    padding: 1.2rem 1.5rem;
    font-weight: 600;
    list-style: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
  }
  .faq-item summary::-webkit-details-marker { display: none; }
  .faq-item summary::after {
    content: '';
    width: 10px;
    height: 10px;
    border-right: 2px solid #94a3b8;
    border-bottom: 2px solid #94a3b8;
    transform: rotate(45deg);
    transition: transform 0.25s ease;
    flex-shrink: 0;
    margin-top: -4px;
  }
  .faq-item[open] summary::after {
    transform: rotate(-135deg);
    margin-top: 4px;
  }
  .faq-item .faq-body {
    padding: 0 1.5rem 1.4rem;
    color: #64748b;
    line-height: 1.8;
  }

  /* cta */
  .cta-band {
    background: linear-gradient(120deg, #0b1120 0%, #12224a 55%, #142f6b 100%);
    border-radius: 1.5rem;
    position: relative;
    overflow: hidden;
  }
  .cta-band::before {
    content: '';
    position: absolute;
    top: -80px;
    right: -40px;
    width: 200px;
    height: 200px;
    border-radius: 50%;
    background: rgba(45, 139, 255, 0.2);
    filter: blur(50px);
  }

  /* footer */
  .site-footer {
    background: #0b1120;
    color: #cbd5e1;
    padding: 4rem 0 0;
    margin-top: 4rem;
  }
  .footer-grid {
    display: grid;
    grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
    gap: 2.5rem;
    padding-bottom: 2.5rem;
  }
  .footer-links {
    display: flex;
    flex-direction: column;
    gap: 0.7rem;
  }
  .footer-links a {
    color: #94a3b8;
    font-size: 0.9375rem;
    transition: color 0.2s ease;
  }
  .footer-links a:hover { color: #2d8bff; }
  .footer-bottom {
    border-top: 1px solid rgba(148,163,184,0.15);
    padding: 1.5rem 0;
    text-align: center;
    color: #64748b;
    font-size: 0.875rem;
  }

  /* content grid */
  .article-card {
    display: flex;
    gap: 1.25rem;
    padding: 1.5rem;
    border: 1px solid #e2e8f0;
    border-radius: 1rem;
    background: #fff;
    transition: all 0.25s ease;
  }
  .article-card:hover {
    border-color: #bae0ff;
    box-shadow: var(--shadow-hover);
    transform: translateY(-2px);
  }
  .article-card .thumb {
    width: 180px;
    height: 120px;
    border-radius: 0.75rem;
    object-fit: cover;
    flex-shrink: 0;
  }
  @media (max-width: 768px) {
    .article-card { flex-direction: column; }
    .article-card .thumb { width: 100%; height: 180px; }
  }

  /* chip */
  .chip {
    display: inline-block;
    padding: 0.2rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.8125rem;
    font-weight: 500;
    background: #f0f7ff;
    color: #166bf4;
  }
  .chip-green {
    background: #ecfdf5;
    color: #059669;
  }
  .chip-orange {
    background: #fff7ed;
    color: #d97706;
  }

  /* mobile nav */
  .mobile-menu {
    display: none;
  }
  @media (max-width: 768px) {
    .desktop-nav { display: none; }
    .mobile-menu { display: flex; }
    .footer-grid { grid-template-columns: 1fr; gap: 2rem; }
  }
  @media (max-width: 520px) {
    .hero-category { padding: 3.5rem 0 3rem; }
  }

  /* focus */
  a:focus-visible, button:focus-visible {
    outline: 3px solid rgba(45,139,255,0.4);
    outline-offset: 2px;
    border-radius: 6px;
  }

/* roulang page: category2 */
:root {
      --primary: #2563eb;
      --primary-dark: #1e40af;
      --primary-light: #60a5fa;
      --accent: #f59e0b;
      --deep-bg: #0b1222;
      --body-bg: #f4f6fb;
      --card-bg: #ffffff;
      --text-main: #0f172a;
      --text-muted: #5b6b7f;
      --border-soft: #e2e8f0;
      --radius-md: 14px;
      --radius-lg: 22px;
      --shadow-soft: 0 6px 30px rgba(15, 23, 42, 0.06);
      --shadow-hover: 0 14px 40px rgba(15, 23, 42, 0.12);
    }

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

    html {
      scroll-behavior: smooth;
    }

    body {
      font-family: "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
      background: var(--body-bg);
      color: var(--text-main);
      line-height: 1.6;
      -webkit-font-smoothing: antialiased;
    }

    a {
      text-decoration: none;
      color: inherit;
    }

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

    .container {
      width: 100%;
      max-width: 1200px;
      margin: 0 auto;
      padding-left: 20px;
      padding-right: 20px;
    }

    /* ===== Header ===== */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 100;
      background: rgba(255, 255, 255, 0.92);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-soft);
    }

    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 68px;
      gap: 24px;
    }

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

    .logo-icon {
      width: 38px;
      height: 38px;
      border-radius: 10px;
      background: linear-gradient(135deg, #2563eb, #3b82f6);
      color: #fff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 16px;
      box-shadow: 0 4px 12px rgba(37, 99, 235, 0.25);
    }

    .logo-text {
      font-size: 18px;
      font-weight: 700;
      color: var(--text-main);
      letter-spacing: -0.2px;
      white-space: nowrap;
    }

    .main-nav {
      display: flex;
      align-items: center;
      gap: 6px;
      margin-left: auto;
    }

    .nav-link {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 8px 16px;
      border-radius: 999px;
      font-size: 14px;
      font-weight: 500;
      color: #475569;
      transition: all 0.25s ease;
      border: 1px solid transparent;
    }

    .nav-link:hover {
      color: var(--primary);
      background: rgba(37, 99, 235, 0.06);
    }

    .nav-link.active {
      color: #fff;
      background: var(--primary);
      box-shadow: 0 4px 14px rgba(37, 99, 235, 0.3);
    }

    .header-actions {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .nav-toggle {
      display: none;
      width: 40px;
      height: 40px;
      border-radius: 10px;
      border: 1px solid var(--border-soft);
      background: #fff;
      color: var(--text-main);
      font-size: 16px;
      cursor: pointer;
      align-items: center;
      justify-content: center;
      transition: all 0.2s ease;
    }

    .nav-toggle:hover {
      border-color: var(--primary);
      color: var(--primary);
    }

    /* ===== Hero ===== */
    .page-hero {
      position: relative;
      padding: 80px 0 72px;
      background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
      background-color: var(--deep-bg);
      color: #fff;
    }

    .page-hero::before {
      content: '';
      position: absolute;
      inset: 0;
      background: linear-gradient(100deg, rgba(11, 18, 34, 0.96) 20%, rgba(11, 18, 34, 0.72) 55%, rgba(37, 99, 235, 0.35) 100%);
    }

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

    .breadcrumb {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 13px;
      color: rgba(255, 255, 255, 0.65);
      margin-bottom: 20px;
    }

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

    .hero-title {
      font-size: 40px;
      line-height: 1.25;
      font-weight: 800;
      letter-spacing: -0.5px;
      max-width: 720px;
      margin-bottom: 16px;
    }

    .hero-title span {
      color: #f59e0b;
    }

    .hero-sub {
      font-size: 17px;
      color: rgba(255, 255, 255, 0.8);
      max-width: 640px;
      margin-bottom: 36px;
      line-height: 1.7;
    }

    .hero-stats {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      max-width: 780px;
    }

    .hero-stat {
      background: rgba(255, 255, 255, 0.08);
      border: 1px solid rgba(255, 255, 255, 0.14);
      border-radius: 16px;
      padding: 18px 20px;
      backdrop-filter: blur(6px);
      transition: all 0.25s ease;
    }

    .hero-stat:hover {
      background: rgba(255, 255, 255, 0.14);
      transform: translateY(-4px);
    }

    .hero-stat .num {
      font-size: 26px;
      font-weight: 800;
      color: #fff;
      line-height: 1.2;
    }

    .hero-stat .desc {
      font-size: 13px;
      color: rgba(255, 255, 255, 0.65);
      margin-top: 4px;
    }

    /* ===== Section ===== */
    .section {
      padding: 76px 0;
    }

    .section-head {
      text-align: center;
      max-width: 680px;
      margin: 0 auto 48px;
    }

    .section-head .tag {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      font-size: 13px;
      font-weight: 600;
      color: var(--primary);
      background: rgba(37, 99, 235, 0.08);
      padding: 6px 14px;
      border-radius: 999px;
      margin-bottom: 14px;
    }

    .section-head h2 {
      font-size: 32px;
      font-weight: 800;
      color: var(--text-main);
      line-height: 1.3;
      margin-bottom: 12px;
    }

    .section-head p {
      color: var(--text-muted);
      font-size: 15px;
      line-height: 1.7;
    }

    /* ===== Cards ===== */
    .grid-4 {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }

    .grid-3 {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .dim-card {
      background: var(--card-bg);
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-soft);
      padding: 30px 26px;
      box-shadow: var(--shadow-soft);
      transition: all 0.3s ease;
      position: relative;
      overflow: hidden;
    }

    .dim-card::after {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      height: 3px;
      background: linear-gradient(90deg, #2563eb, #60a5fa);
      opacity: 0;
      transition: opacity 0.3s ease;
    }

    .dim-card:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-hover);
      border-color: rgba(37, 99, 235, 0.25);
    }

    .dim-card:hover::after {
      opacity: 1;
    }

    .dim-icon {
      width: 52px;
      height: 52px;
      border-radius: 14px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 20px;
      color: #fff;
      margin-bottom: 20px;
      background: linear-gradient(135deg, #2563eb, #3b82f6);
      box-shadow: 0 8px 20px rgba(37, 99, 235, 0.2);
    }

    .dim-card .dim-title {
      font-size: 18px;
      font-weight: 700;
      margin-bottom: 10px;
    }

    .dim-card .dim-desc {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 14px;
    }

    .dim-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 6px;
    }

    .dim-tags span {
      font-size: 12px;
      padding: 4px 10px;
      border-radius: 999px;
      background: #f1f5f9;
      color: #475569;
    }

    /* ===== Review cards ===== */
    .review-card {
      background: #fff;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-soft);
      box-shadow: var(--shadow-soft);
      overflow: hidden;
      transition: all 0.3s ease;
      display: flex;
      flex-direction: column;
    }

    .review-card:hover {
      transform: translateY(-8px);
      box-shadow: var(--shadow-hover);
    }

    .review-cover {
      position: relative;
      height: 200px;
      overflow: hidden;
    }

    .review-cover img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }

    .review-card:hover .review-cover img {
      transform: scale(1.05);
    }

    .review-badge {
      position: absolute;
      top: 14px;
      left: 14px;
      background: rgba(11, 18, 34, 0.72);
      backdrop-filter: blur(6px);
      color: #fff;
      font-size: 12px;
      font-weight: 600;
      padding: 5px 12px;
      border-radius: 999px;
      display: flex;
      align-items: center;
      gap: 5px;
    }

    .score-badge {
      position: absolute;
      top: 14px;
      right: 14px;
      background: linear-gradient(135deg, #f59e0b, #fbbf24);
      color: #1e293b;
      font-size: 13px;
      font-weight: 800;
      padding: 5px 12px;
      border-radius: 999px;
      box-shadow: 0 4px 12px rgba(245, 158, 11, 0.35);
    }

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

    .review-meta {
      display: flex;
      align-items: center;
      gap: 14px;
      font-size: 12px;
      color: var(--text-muted);
      margin-bottom: 12px;
    }

    .review-meta span {
      display: inline-flex;
      align-items: center;
      gap: 5px;
    }

    .review-body h3 {
      font-size: 19px;
      font-weight: 700;
      line-height: 1.45;
      margin-bottom: 10px;
      color: var(--text-main);
      transition: color 0.2s;
    }

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

    .review-excerpt {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
      flex: 1;
    }

    .review-footer {
      margin-top: 18px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding-top: 16px;
      border-top: 1px solid var(--border-soft);
    }

    .review-link {
      font-size: 14px;
      font-weight: 600;
      color: var(--primary);
      display: inline-flex;
      align-items: center;
      gap: 6px;
      transition: gap 0.2s ease;
    }

    .review-link:hover {
      gap: 10px;
    }

    .review-read {
      font-size: 12px;
      color: var(--text-muted);
    }

    /* ===== Dark stats panel ===== */
    .stats-band {
      background: var(--deep-bg);
      position: relative;
      overflow: hidden;
    }

    .stats-band::before {
      content: '';
      position: absolute;
      inset: 0;
      background: linear-gradient(135deg, rgba(37, 99, 235, 0.15) 0%, transparent 40%, rgba(245, 158, 11, 0.08) 100%);
    }

    .stats-band .container {
      position: relative;
      z-index: 2;
    }

    .stats-band .section-head h2 {
      color: #fff;
    }

    .stats-band .section-head p {
      color: rgba(255, 255, 255, 0.6);
    }

    .stats-band .section-head .tag {
      background: rgba(255, 255, 255, 0.1);
      color: #93c5fd;
    }

    .stats-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .stat-panel {
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid rgba(255, 255, 255, 0.1);
      border-radius: 20px;
      padding: 32px 28px;
      text-align: center;
      backdrop-filter: blur(6px);
      transition: all 0.3s ease;
    }

    .stat-panel:hover {
      background: rgba(255, 255, 255, 0.1);
      transform: translateY(-4px);
    }

    .stat-icon {
      font-size: 26px;
      color: #60a5fa;
      margin-bottom: 12px;
    }

    .stat-num {
      font-size: 38px;
      font-weight: 800;
      color: #fff;
      line-height: 1.2;
    }

    .stat-label {
      font-size: 14px;
      color: rgba(255, 255, 255, 0.55);
      margin-top: 6px;
    }

    .stat-bar {
      margin-top: 18px;
      height: 6px;
      background: rgba(255, 255, 255, 0.1);
      border-radius: 99px;
      overflow: hidden;
    }

    .stat-bar-inner {
      height: 100%;
      border-radius: 99px;
      background: linear-gradient(90deg, #2563eb, #60a5fa);
    }

    .stat-bar-inner.amber {
      background: linear-gradient(90deg, #f59e0b, #fbbf24);
    }

    /* ===== Method ===== */
    .method-section {
      background: #fff;
    }

    .steps {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 28px;
      counter-reset: step;
    }

    .step-item {
      position: relative;
      padding-top: 20px;
    }

    .step-item::before {
      counter-increment: step;
      content: counter(step, decimal-leading-zero);
      display: block;
      width: 46px;
      height: 46px;
      border-radius: 14px;
      background: linear-gradient(135deg, #2563eb, #3b82f6);
      color: #fff;
      font-size: 16px;
      font-weight: 800;
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 20px;
      box-shadow: 0 8px 20px rgba(37, 99, 235, 0.2);
    }

    .step-item h3 {
      font-size: 17px;
      font-weight: 700;
      margin-bottom: 8px;
    }

    .step-item p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
    }

    .step-line {
      position: absolute;
      top: 43px;
      left: 60px;
      right: -20px;
      height: 2px;
      background: linear-gradient(90deg, #dbeafe, transparent);
    }

    .step-item:last-child .step-line {
      display: none;
    }

    /* ===== FAQ ===== */
    .faq-section {
      background: var(--body-bg);
    }

    .faq-wrap {
      max-width: 800px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }

    .faq-item {
      background: #fff;
      border: 1px solid var(--border-soft);
      border-radius: 16px;
      overflow: hidden;
      box-shadow: var(--shadow-soft);
      transition: all 0.25s ease;
    }

    .faq-item:hover {
      border-color: rgba(37, 99, 235, 0.25);
    }

    .faq-item summary {
      padding: 20px 24px;
      font-size: 16px;
      font-weight: 600;
      cursor: pointer;
      list-style: none;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      transition: color 0.2s;
    }

    .faq-item summary::-webkit-details-marker {
      display: none;
    }

    .faq-item summary::after {
      content: '\f107';
      font-family: 'Font Awesome 6 Free';
      font-weight: 900;
      color: var(--primary);
      font-size: 16px;
      transition: transform 0.3s ease;
      flex-shrink: 0;
    }

    .faq-item[open] summary::after {
      transform: rotate(180deg);
    }

    .faq-item[open] summary {
      color: var(--primary);
    }

    .faq-answer {
      padding: 0 24px 20px;
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.75;
    }

    /* ===== CTA ===== */
    .cta-section {
      padding: 60px 0;
    }

    .cta-box {
      background: linear-gradient(120deg, #0b1222 0%, #182c5c 60%, #2563eb 130%);
      border-radius: 28px;
      padding: 56px 48px;
      text-align: center;
      position: relative;
      overflow: hidden;
      color: #fff;
    }

    .cta-box::before {
      content: '';
      position: absolute;
      width: 360px;
      height: 360px;
      border-radius: 50%;
      background: rgba(59, 130, 246, 0.2);
      top: -180px;
      right: -100px;
    }

    .cta-box h2 {
      font-size: 30px;
      font-weight: 800;
      margin-bottom: 12px;
    }

    .cta-box p {
      color: rgba(255, 255, 255, 0.75);
      font-size: 16px;
      max-width: 560px;
      margin: 0 auto 30px;
    }

    .cta-btns {
      display: flex;
      justify-content: center;
      gap: 14px;
      flex-wrap: wrap;
    }

    .btn-primary,
    .btn-outline {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 14px 30px;
      border-radius: 999px;
      font-size: 15px;
      font-weight: 600;
      transition: all 0.25s ease;
      cursor: pointer;
      border: none;
    }

    .btn-primary {
      background: linear-gradient(135deg, #2563eb, #3b82f6);
      color: #fff;
      box-shadow: 0 8px 20px rgba(37, 99, 235, 0.35);
    }

    .btn-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 12px 28px rgba(37, 99, 235, 0.4);
    }

    .btn-outline {
      background: rgba(255, 255, 255, 0.08);
      border: 1px solid rgba(255, 255, 255, 0.25);
      color: #fff;
      backdrop-filter: blur(4px);
    }

    .btn-outline:hover {
      background: rgba(255, 255, 255, 0.15);
      border-color: rgba(255, 255, 255, 0.4);
      transform: translateY(-2px);
    }

    /* ===== Footer ===== */
    .site-footer {
      background: #0b1222;
      color: #94a3b8;
      padding: 60px 0 24px;
    }

    .site-footer .logo-text {
      color: #fff;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.6fr 0.8fr 0.8fr 1fr;
      gap: 40px;
      padding-bottom: 40px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }

    .footer-brand p {
      font-size: 14px;
      line-height: 1.7;
      margin-top: 16px;
      color: #64748b;
    }

    .footer-title {
      font-size: 15px;
      font-weight: 700;
      color: #fff;
      margin-bottom: 16px;
    }

    .footer-links {
      display: flex;
      flex-direction: column;
      gap: 10px;
      font-size: 14px;
    }

    .footer-links a {
      color: #94a3b8;
      transition: color 0.2s;
      cursor: pointer;
    }

    .footer-links a:hover {
      color: #60a5fa;
    }

    .footer-bottom {
      display: flex;
      justify-content: center;
      align-items: center;
      padding-top: 24px;
      font-size: 13px;
      color: #475569;
      text-align: center;
    }

    /* ===== Responsive ===== */
    @media (max-width: 1024px) {
      .grid-4 {
        grid-template-columns: repeat(2, 1fr);
      }

      .grid-3 {
        grid-template-columns: repeat(2, 1fr);
      }

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

      .step-line {
        display: none;
      }

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

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

      .hero-title {
        font-size: 34px;
      }
    }

    @media (max-width: 768px) {
      .header-inner {
        height: 60px;
      }

      .main-nav {
        display: none;
        position: absolute;
        top: 60px;
        left: 0;
        right: 0;
        background: #fff;
        flex-direction: column;
        align-items: stretch;
        padding: 16px 20px;
        gap: 4px;
        border-bottom: 1px solid var(--border-soft);
        box-shadow: 0 12px 30px rgba(15, 23, 42, 0.08);
      }

      .main-nav.open {
        display: flex;
      }

      .nav-link {
        padding: 12px 16px;
        border-radius: 10px;
      }

      .nav-toggle {
        display: flex;
      }

      .section {
        padding: 56px 0;
      }

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

      .hero-title {
        font-size: 28px;
      }

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

      .cta-box {
        padding: 40px 24px;
      }

      .cta-box h2 {
        font-size: 24px;
      }
    }

    @media (max-width: 520px) {
      .grid-4,
      .grid-3,
      .steps,
      .stats-grid {
        grid-template-columns: 1fr;
      }

      .hero-stats {
        grid-template-columns: 1fr 1fr;
        gap: 12px;
      }

      .hero-stat {
        padding: 14px 16px;
      }

      .hero-stat .num {
        font-size: 20px;
      }

      .footer-grid {
        grid-template-columns: 1fr;
        gap: 28px;
      }

      .footer-bottom {
        font-size: 12px;
      }

      .logo-text {
        font-size: 16px;
      }

      .hero-sub {
        font-size: 15px;
      }
    }