/* roulang page: index */
:root{
    --primary:#0d9488;--primary-dark:#0f766e;--primary-light:#5eead4;
    --secondary:#1e40af;--secondary-light:#3b82f6;
    --ink:#0f172a;--ink-soft:#475569;--ink-muted:#94a3b8;
    --border:#e2e8f0;--bg-soft:#f8fafc;--bg-white:#ffffff;
    --radius:14px;--radius-sm:8px;
    --shadow:0 4px 24px rgba(15,23,42,.06);
    --shadow-lg:0 16px 48px rgba(15,23,42,.10);
    --transition:.25s ease;
  }
  *{margin:0;padding:0;box-sizing:border-box}
  html{scroll-behavior:smooth}
  body{font-family:"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;color:var(--ink);background:var(--bg-soft);line-height:1.7;-webkit-font-smoothing:antialiased}
  a{text-decoration:none;color:inherit;transition:all var(--transition)}
  img{max-width:100%;display:block}
  button{font-family:inherit;cursor:pointer;border:none;background:none}
  input{font-family:inherit}
  .container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}
  .site-header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.96);backdrop-filter:blur(12px);border-bottom:1px solid var(--border)}
  .header-top{padding:14px 0}
  .header-top-inner{display:flex;align-items:center;justify-content:space-between;gap:16px}
  .brand{display:flex;align-items:center;gap:10px;font-size:1.42rem;font-weight:800;color:var(--ink);letter-spacing:.5px}
  .brand-icon{width:40px;height:40px;border-radius:12px;background:linear-gradient(135deg,#0d9488,#0f766e);display:flex;align-items:center;justify-content:center;color:#fff;font-size:1.1rem;box-shadow:0 4px 14px rgba(13,148,136,.35)}
  .brand:hover{opacity:.88}
  .header-right{display:flex;align-items:center;gap:12px}
  .search-wrap{display:flex;align-items:center;background:var(--bg-soft);border:1px solid var(--border);border-radius:50px;padding:4px 6px 4px 16px;transition:all var(--transition)}
  .search-wrap:focus-within{border-color:var(--primary);box-shadow:0 0 0 3px rgba(13,148,136,.12)}
  .search-wrap input{border:none;background:transparent;outline:none;font-size:.92rem;width:200px;color:var(--ink)}
  .search-wrap button{width:36px;height:36px;border-radius:50%;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;font-size:.85rem;transition:all var(--transition)}
  .search-wrap button:hover{background:var(--primary-dark)}
  .btn-header{background:linear-gradient(135deg,#0d9488,#0f766e);color:#fff;padding:9px 22px;border-radius:50px;font-size:.9rem;font-weight:600;box-shadow:0 4px 14px rgba(13,148,136,.3);transition:all var(--transition)}
  .btn-header:hover{box-shadow:0 6px 20px rgba(13,148,136,.45);transform:translateY(-1px)}
  .header-nav{border-top:1px solid var(--border);background:#fff}
  .nav-tabs{display:flex;gap:6px;padding:9px 0;overflow-x:auto}
  .nav-tabs::-webkit-scrollbar{display:none}
  .nav-tab{display:inline-flex;align-items:center;gap:8px;padding:9px 20px;border-radius:50px;font-size:.9rem;font-weight:600;color:var(--ink-soft);white-space:nowrap;transition:all var(--transition)}
  .nav-tab i{font-size:.85rem}
  .nav-tab:hover{background:var(--bg-soft);color:var(--primary)}
  .nav-tab.active{background:var(--primary);color:#fff;box-shadow:0 4px 14px rgba(13,148,136,.3)}
  .hero-section{position:relative;background:url('/assets/images/backpic/back-1.png') center/cover no-repeat;padding:92px 0 96px;color:#fff;overflow:hidden}
  .hero-section::before{content:'';position:absolute;inset:0;background:linear-gradient(110deg,rgba(10,33,51,.92) 0%,rgba(13,116,108,.78) 55%,rgba(15,36,64,.65) 100%)}
  .hero-content{position:relative;z-index:2}
  .hero-badge{display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.15);border:1px solid rgba(255,255,255,.3);border-radius:50px;padding:6px 16px;font-size:.82rem;backdrop-filter:blur(4px)}
  .hero-badge i{color:#5eead4}
  .hero-title{font-size:2.9rem;font-weight:800;line-height:1.2;margin:22px 0 16px;letter-spacing:1px}
  .hero-title span{color:#5eead4}
  .hero-desc{font-size:1.08rem;max-width:620px;color:rgba(255,255,255,.88);margin-bottom:32px}
  .hero-actions{display:flex;gap:14px;flex-wrap:wrap}
  .btn-hero{display:inline-flex;align-items:center;gap:10px;padding:14px 34px;border-radius:50px;font-size:1rem;font-weight:700;transition:all var(--transition)}
  .btn-hero-primary{background:#fff;color:var(--secondary);box-shadow:0 8px 30px rgba(0,0,0,.18)}
  .btn-hero-primary:hover{transform:translateY(-3px);box-shadow:0 12px 36px rgba(0,0,0,.25)}
  .btn-hero-ghost{background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.4);color:#fff;backdrop-filter:blur(4px)}
  .btn-hero-ghost:hover{background:rgba(255,255,255,.22);transform:translateY(-3px)}
  .hero-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:58px}
  .hero-stat{background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.2);border-radius:16px;padding:18px 20px;backdrop-filter:blur(6px)}
  .hero-stat .num{font-size:1.8rem;font-weight:800;color:#5eead4}
  .hero-stat .label{font-size:.82rem;color:rgba(255,255,255,.75)}
  .section{padding:72px 0}
  .section-head{text-align:center;max-width:720px;margin:0 auto 44px}
  .section-tag{display:inline-flex;align-items:center;gap:6px;background:#ccfbf1;color:#0f766e;border-radius:50px;padding:5px 16px;font-size:.8rem;font-weight:700;letter-spacing:1px}
  .section-title{font-size:2rem;font-weight:800;color:var(--ink);margin:14px 0 10px;letter-spacing:.5px}
  .section-desc{color:var(--ink-soft);font-size:1rem}
  .card{background:var(--bg-white);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);transition:all var(--transition)}
  .card-hover:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:#99f6e4}
  .service-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
  .service-card{padding:32px 28px;text-align:center;position:relative;overflow:hidden}
  .service-icon{width:68px;height:68px;border-radius:20px;background:linear-gradient(135deg,#ccfbf1,#f0fdfa);display:flex;align-items:center;justify-content:center;font-size:1.6rem;color:var(--primary);margin:0 auto 20px}
  .service-card h3{font-size:1.12rem;font-weight:700;color:var(--ink);margin-bottom:10px}
  .service-card p{font-size:.9rem;color:var(--ink-soft);line-height:1.65}
  .category-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
  .category-card{position:relative;border-radius:var(--radius);overflow:hidden;min-height:280px;display:flex;align-items:flex-end;padding:28px;color:#fff;box-shadow:var(--shadow-lg)}
  .category-card::before{content:'';position:absolute;inset:0;background:linear-gradient(to top,rgba(10,25,50,.9) 20%,rgba(10,25,50,.2) 70%,rgba(10,25,50,.1) 100%);transition:all var(--transition)}
  .category-card:hover::before{background:linear-gradient(to top,rgba(8,20,45,.95) 18%,rgba(10,25,50,.3) 70%,rgba(10,25,50,.15) 100%)}
  .category-card img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:0;transition:transform .5s}
  .category-card:hover img{transform:scale(1.05)}
  .category-info{position:relative;z-index:2}
  .category-info h3{font-size:1.5rem;font-weight:800;margin-bottom:6px}
  .category-info p{font-size:.9rem;color:rgba(255,255,255,.82);max-width:360px;margin-bottom:14px}
  .category-link{display:inline-flex;align-items:center;gap:8px;background:#fff;color:var(--secondary);font-size:.85rem;font-weight:700;padding:8px 22px;border-radius:50px;transition:all var(--transition)}
  .category-link:hover{background:var(--primary);color:#fff}
  .news-section{background:var(--bg-white)}
  .news-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
  .news-card{display:flex;background:var(--bg-white);border:1px solid var(--border);border-radius:var(--radius-sm);padding:22px 24px;transition:all var(--transition)}
  .news-card:hover{border-color:var(--primary);box-shadow:var(--shadow)}
  .news-card-icon{width:42px;height:42px;border-radius:12px;background:#f0fdfa;color:var(--primary);display:flex;align-items:center;justify-content:center;font-size:1rem;margin-right:16px;flex-shrink:0}
  .news-card-body{flex:1;min-width:0}
  .news-card-body h3{font-size:1rem;font-weight:700;color:var(--ink);margin-bottom:4px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
  .news-card-body p{font-size:.85rem;color:var(--ink-soft);line-height:1.5;margin-bottom:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
  .news-meta{display:flex;align-items:center;gap:12px;font-size:.78rem;color:var(--ink-muted)}
  .news-meta .tag{background:#f0fdfa;color:#0f766e;padding:2px 10px;border-radius:30px;font-weight:600;font-size:.72rem}
  .flow-section{background:var(--bg-soft)}
  .flow-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
  .flow-item{text-align:center;position:relative}
  .flow-item::after{content:'';position:absolute;top:34px;left:calc(50% + 80px);width:calc(100% - 120px);border-top:2px dashed var(--primary-light)}
  .flow-item:last-child::after{display:none}
  .flow-num{width:68px;height:68px;border-radius:50%;background:linear-gradient(135deg,#0d9488,#0f766e);color:#fff;display:flex;align-items:center;justify-content:center;font-size:1.3rem;font-weight:800;margin:0 auto 16px;box-shadow:0 8px 24px rgba(13,148,136,.3)}
  .flow-item h4{font-size:1rem;font-weight:700;margin-bottom:6px}
  .flow-item p{font-size:.85rem;color:var(--ink-soft);line-height:1.6}
  .faq-list{max-width:820px;margin:0 auto;display:flex;flex-direction:column;gap:14px}
  .faq-item{background:var(--bg-white);border:1px solid var(--border);border-radius:var(--radius-sm);overflow:hidden;transition:all var(--transition)}
  .faq-item:hover{border-color:var(--primary)}
  .faq-question{width:100%;display:flex;align-items:center;justify-content:space-between;padding:18px 24px;font-size:.98rem;font-weight:600;color:var(--ink);text-align:left}
  .faq-question i{color:var(--primary);transition:transform var(--transition)}
  .faq-item.open .faq-question i{transform:rotate(180deg)}
  .faq-answer{padding:0 24px;max-height:0;overflow:hidden;transition:max-height .3s ease}
  .faq-item.open .faq-answer{max-height:220px;padding:0 24px 18px}
  .faq-answer p{font-size:.9rem;color:var(--ink-soft);line-height:1.7}
  .cta-section{background:url('/assets/images/backpic/back-2.png') center/cover no-repeat;position:relative;padding:70px 0;color:#fff;text-align:center}
  .cta-section::before{content:'';position:absolute;inset:0;background:rgba(13,70,80,.92)}
  .cta-content{position:relative;z-index:2}
  .cta-title{font-size:2rem;font-weight:800;margin-bottom:12px}
  .cta-desc{font-size:1rem;color:rgba(255,255,255,.85);max-width:600px;margin:0 auto 28px}
  .cta-btns{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
  .btn-cta{display:inline-flex;align-items:center;gap:10px;padding:14px 36px;border-radius:50px;font-size:1rem;font-weight:700;transition:all var(--transition)}
  .btn-cta-primary{background:#fff;color:var(--primary-dark)}
  .btn-cta-primary:hover{transform:translateY(-3px);box-shadow:0 12px 30px rgba(0,0,0,.2)}
  .btn-cta-outline{border:2px solid rgba(255,255,255,.8);color:#fff}
  .btn-cta-outline:hover{background:rgba(255,255,255,.15)}
  .site-footer{background:#0f2440;color:rgba(255,255,255,.75);padding:60px 0 0}
  .footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:36px}
  .footer-brand{font-size:1.35rem;font-weight:800;color:#fff;margin-bottom:12px;display:flex;align-items:center;gap:10px}
  .footer-brand i{color:#5eead4}
  .footer-about p{font-size:.88rem;line-height:1.7}
  .footer-col h4{color:#fff;font-size:.92rem;font-weight:700;margin-bottom:14px}
  .footer-col a{display:block;font-size:.85rem;padding:5px 0;color:rgba(255,255,255,.65)}
  .footer-col a:hover{color:#5eead4;padding-left:6px}
  .footer-col p{font-size:.85rem;padding:4px 0;color:rgba(255,255,255,.65)}
  .footer-col i{margin-right:8px;color:#5eead4}
  .footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:20px 0;text-align:center;font-size:.8rem;color:rgba(255,255,255,.45)}
  .footer-bottom a{color:rgba(255,255,255,.6)}
  .footer-bottom a:hover{color:#5eead4}
  @media (max-width:1024px){
    .hero-title{font-size:2.3rem}
    .service-grid{grid-template-columns:repeat(2,1fr)}
    .flow-grid{grid-template-columns:repeat(2,1fr);gap:32px 20px}
    .flow-item::after{display:none}
    .category-grid{grid-template-columns:1fr}
    .footer-grid{grid-template-columns:1fr 1fr}
  }
  @media (max-width:768px){
    .search-wrap input{width:130px}
    .hero-section{padding:68px 0 72px}
    .hero-title{font-size:1.8rem}
    .hero-desc{font-size:1rem}
    .hero-stats{grid-template-columns:repeat(2,1fr)}
    .header-top-inner{flex-wrap:wrap;gap:12px}
    .header-right{width:100%;justify-content:space-between}
    .news-grid{grid-template-columns:1fr}
    .section{padding:50px 0}
    .section-title{font-size:1.6rem}
    .service-grid{grid-template-columns:1fr}
    .category-grid{grid-template-columns:1fr}
  }
  @media (max-width:520px){
    .container{padding:0 16px}
    .search-wrap{flex:1}
    .search-wrap input{width:100%}
    .btn-header{padding:8px 16px;font-size:.82rem}
    .hero-stats{grid-template-columns:1fr 1fr;gap:10px}
    .hero-title{font-size:1.45rem}
    .btn-hero{padding:12px 24px;font-size:.9rem}
    .flow-grid{grid-template-columns:1fr}
    .footer-grid{grid-template-columns:1fr}
    .footer-bottom{padding:16px 0}
  }

/* roulang page: article */
:root {
  --primary: #0d9488;
  --primary-dark: #0f766e;
  --primary-light: #5eead4;
  --accent: #f59e0b;
  --accent-light: #fbbf24;
  --bg: #f8fafc;
  --bg-dark: #0f172a;
  --bg-card: #ffffff;
  --text: #1e293b;
  --text-light: #64748b;
  --text-lighter: #94a3b8;
  --border: #e2e8f0;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 4px 24px rgba(0,0,0,0.06);
  --shadow-lg: 0 12px 40px rgba(0,0,0,0.1);
  --transition: all 0.3s cubic-bezier(0.4,0,0.2,1);
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;background:var(--bg);color:var(--text);line-height:1.7;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none;transition:var(--transition)}
button{font-family:inherit;cursor:pointer}
input,textarea{font-family:inherit}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
@media (max-width:768px){.container{padding:0 16px}}

/* ===== Header ===== */
.site-header{background:#fff;border-bottom:1px solid var(--border);position:sticky;top:0;z-index:100;box-shadow:0 2px 12px rgba(0,0,0,0.04)}
.header-top{padding:14px 0}
.header-top-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:10px;font-size:1.35rem;font-weight:800;color:var(--primary);letter-spacing:-0.02em}
.brand-icon{width:40px;height:40px;background:linear-gradient(135deg,var(--primary),var(--primary-dark));border-radius:12px;display:flex;align-items:center;justify-content:center;color:#fff;font-size:1.1rem;box-shadow:0 4px 12px rgba(13,148,136,0.3)}
.header-right{display:flex;align-items:center;gap:14px}
.search-wrap{display:flex;align-items:center;background:var(--bg);border:1px solid var(--border);border-radius:999px;padding:4px 6px 4px 16px;transition:var(--transition)}
.search-wrap:focus-within{border-color:var(--primary);box-shadow:0 0 0 3px rgba(13,148,136,0.1)}
.search-wrap input{border:none;background:transparent;outline:none;font-size:0.875rem;width:200px;color:var(--text)}
.search-wrap button{background:var(--primary);border:none;color:#fff;width:32px;height:32px;border-radius:50%;display:flex;align-items:center;justify-content:center;transition:var(--transition)}
.search-wrap button:hover{background:var(--primary-dark)}
.btn-header{background:var(--primary);color:#fff;padding:8px 18px;border-radius:999px;font-size:0.875rem;font-weight:600;display:inline-flex;align-items:center;gap:6px;transition:var(--transition)}
.btn-header:hover{background:var(--primary-dark);transform:translateY(-1px);box-shadow:0 6px 16px rgba(13,148,136,0.3)}
.header-nav{background:#fff;border-top:1px solid var(--border)}
.nav-tabs{display:flex;gap:4px;padding:8px 0;overflow-x:auto;scrollbar-width:none}
.nav-tabs::-webkit-scrollbar{display:none}
.nav-tab{display:inline-flex;align-items:center;gap:8px;padding:10px 22px;border-radius:999px;font-size:0.925rem;font-weight:600;color:var(--text-light);white-space:nowrap;transition:var(--transition)}
.nav-tab:hover{background:var(--bg);color:var(--primary)}
.nav-tab.active{background:var(--primary);color:#fff;box-shadow:0 4px 14px rgba(13,148,136,0.35)}
.nav-tab i{font-size:0.875rem}

/* ===== Breadcrumb ===== */
.breadcrumb-section{background:var(--bg-dark);padding:18px 0;border-bottom:1px solid rgba(255,255,255,0.08)}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:0.875rem;color:#94a3b8;flex-wrap:wrap}
.breadcrumb a{color:#cbd5e1;transition:var(--transition)}
.breadcrumb a:hover{color:var(--primary-light)}
.breadcrumb .sep{color:#64748b}
.breadcrumb .current{color:var(--primary-light)}

/* ===== Article Header ===== */
.article-header-section{background:var(--bg-dark);padding:48px 0 56px;position:relative;overflow:hidden}
.article-header-section::before{content:'';position:absolute;top:0;left:0;right:0;bottom:0;background:url('/assets/images/backpic/back-2.png') center/cover no-repeat;opacity:0.18}
.article-header-section .container{position:relative;z-index:2}
.article-category-badge{display:inline-flex;align-items:center;gap:6px;background:rgba(245,158,11,0.15);border:1px solid rgba(245,158,11,0.4);color:var(--accent-light);padding:5px 16px;border-radius:999px;font-size:0.8125rem;font-weight:600;margin-bottom:16px}
.article-header-title{color:#fff;font-size:2.2rem;font-weight:800;line-height:1.3;letter-spacing:-0.02em;margin-bottom:16px;max-width:860px}
.article-meta{display:flex;align-items:center;gap:20px;color:#94a3b8;font-size:0.875rem;flex-wrap:wrap}
.article-meta span{display:inline-flex;align-items:center;gap:6px}
.article-meta i{color:var(--primary-light)}

/* ===== Article Main Layout ===== */
.article-main-section{padding:40px 0 0;background:var(--bg)}
.article-layout{display:grid;grid-template-columns:1fr 340px;gap:32px;align-items:start}
.article-content-wrap{background:#fff;border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden;padding:32px 40px 40px}
.article-cover{border-radius:var(--radius);overflow:hidden;margin-bottom:28px;position:relative}
.article-cover img{width:100%;height:auto;min-height:220px;object-fit:cover}
.article-content{font-size:1.0625rem;line-height:1.9;color:var(--text)}
.article-content p{margin-bottom:1.25rem}
.article-content h2{font-size:1.45rem;font-weight:700;margin:2.2rem 0 1rem;padding-left:0.875rem;border-left:4px solid var(--primary);line-height:1.4}
.article-content h3{font-size:1.2rem;font-weight:600;margin:1.6rem 0 0.75rem}
.article-content img{border-radius:12px;margin:1.5rem 0}
.article-content ul,.article-content ol{margin:1rem 0 1.25rem 1.5rem}
.article-content ul{list-style:disc}
.article-content ol{list-style:decimal}
.article-content li{margin-bottom:0.5rem}
.article-content blockquote{border-left:4px solid var(--primary);padding:0.875rem 1.25rem;background:#f0fdfa;border-radius:0 10px 10px 0;margin:1.5rem 0;color:var(--text-light)}
.article-content a{color:var(--primary);text-decoration:underline}
.article-content a:hover{color:var(--primary-dark)}
.article-content table{width:100%;border-collapse:collapse;margin:1.5rem 0}
.article-content table th,.article-content table td{border:1px solid var(--border);padding:10px 14px;text-align:left}
.article-content table th{background:var(--bg);font-weight:600}

/* not found */
.not-found-panel{text-align:center;padding:80px 20px;background:#fff;border-radius:var(--radius);box-shadow:var(--shadow)}
.not-found-panel i{font-size:3.5rem;color:var(--text-lighter);margin-bottom:20px;display:block}
.not-found-panel h2{font-size:1.5rem;color:var(--text);margin-bottom:12px}
.not-found-panel p{color:var(--text-light);margin-bottom:24px}

/* ===== Tags & Share ===== */
.article-tags-share{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-top:32px;padding-top:24px;border-top:1px solid var(--border);flex-wrap:wrap}
.article-tags{display:flex;gap:8px;flex-wrap:wrap}
.tag{display:inline-flex;align-items:center;gap:5px;background:var(--bg);border:1px solid var(--border);color:var(--text-light);font-size:0.8125rem;padding:5px 14px;border-radius:999px;transition:var(--transition)}
.tag:hover{border-color:var(--primary);color:var(--primary);background:#f0fdfa}
.article-share{display:flex;gap:8px}
.share-btn{width:36px;height:36px;border-radius:50%;background:var(--bg);border:1px solid var(--border);display:flex;align-items:center;justify-content:center;color:var(--text-light);transition:var(--transition)}
.share-btn:hover{background:var(--primary);border-color:var(--primary);color:#fff;transform:translateY(-2px)}

/* ===== Sidebar ===== */
.article-sidebar .sidebar-card{background:#fff;border-radius:var(--radius);box-shadow:var(--shadow);padding:24px;margin-bottom:24px}
.sidebar-card h3{font-size:1.0625rem;font-weight:700;color:var(--text);margin-bottom:16px;padding-bottom:12px;border-bottom:2px solid var(--border);position:relative}
.sidebar-card h3::after{content:'';position:absolute;bottom:-2px;left:0;width:48px;height:2px;background:var(--primary)}
.sidebar-card ul{list-style:none}
.sidebar-card li a{display:flex;align-items:center;gap:10px;padding:10px 0;color:var(--text-light);font-size:0.925rem;border-bottom:1px solid #f1f5f9;transition:var(--transition)}
.sidebar-card li:last-child a{border-bottom:none}
.sidebar-card li a:hover{color:var(--primary);padding-left:6px}
.sidebar-card li a i{color:var(--primary);font-size:0.875rem;width:20px;text-align:center}
.sidebar-post{display:flex;gap:12px;padding:12px 0;border-bottom:1px solid #f1f5f9;align-items:center}
.sidebar-post:last-of-type{border-bottom:none}
.sidebar-post img{width:72px;height:56px;object-fit:cover;border-radius:8px;flex-shrink:0}
.sidebar-post a{font-size:0.875rem;font-weight:600;color:var(--text);line-height:1.4;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.sidebar-post a:hover{color:var(--primary)}
.sidebar-post span{font-size:0.75rem;color:var(--text-lighter);display:block;margin-top:4px}
.sidebar-cta{background:var(--bg-dark);border-radius:var(--radius);padding:28px 24px;text-align:center;position:relative;overflow:hidden;color:#fff}
.sidebar-cta img{position:absolute;top:0;left:0;width:100%;height:100%;object-fit:cover;opacity:0.25}
.sidebar-cta>*{position:relative;z-index:2}
.sidebar-cta h4{font-size:1.125rem;font-weight:700;margin-bottom:8px}
.sidebar-cta p{font-size:0.875rem;color:#cbd5e1;margin-bottom:18px}
.sidebar-cta .btn-primary{display:inline-block;background:var(--accent);color:#fff;padding:9px 24px;border-radius:999px;font-size:0.875rem;font-weight:600;transition:var(--transition)}
.sidebar-cta .btn-primary:hover{background:#d97706;transform:translateY(-1px)}

/* ===== Buttons ===== */
.btn-primary{display:inline-flex;align-items:center;gap:8px;background:var(--primary);color:#fff;padding:11px 24px;border-radius:999px;font-size:0.925rem;font-weight:600;transition:var(--transition);border:none}
.btn-primary:hover{background:var(--primary-dark);transform:translateY(-2px);box-shadow:0 8px 20px rgba(13,148,136,0.3)}
.btn-accent{display:inline-flex;align-items:center;gap:8px;background:var(--accent);color:#fff;padding:11px 24px;border-radius:999px;font-size:0.925rem;font-weight:600;transition:var(--transition)}
.btn-accent:hover{background:#d97706;transform:translateY(-2px);box-shadow:0 8px 20px rgba(245,158,11,0.3)}
.btn-outline-light{display:inline-flex;align-items:center;gap:8px;border:1px solid rgba(255,255,255,0.5);color:#fff;padding:11px 24px;border-radius:999px;font-size:0.925rem;font-weight:600;transition:var(--transition)}
.btn-outline-light:hover{background:rgba(255,255,255,0.1);border-color:#fff;transform:translateY(-2px)}

/* ===== Related Section ===== */
.related-section{padding:64px 0;background:var(--bg)}
.section-header{margin-bottom:36px;text-align:center}
.section-tag{display:inline-block;background:rgba(13,148,136,0.1);color:var(--primary);font-size:0.8125rem;font-weight:600;padding:4px 16px;border-radius:999px;margin-bottom:10px}
.section-header h2{font-size:1.875rem;font-weight:800;color:var(--text);letter-spacing:-0.02em;margin-bottom:6px}
.section-header p{color:var(--text-light);font-size:0.9375rem}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.related-card{background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:var(--transition);display:block}
.related-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.related-img{overflow:hidden;position:relative;aspect-ratio:16/9}
.related-img img{width:100%;height:100%;object-fit:cover;transition:transform 0.5s ease}
.related-card:hover .related-img img{transform:scale(1.06)}
.related-body{padding:20px 22px 22px}
.badge{display:inline-block;background:rgba(13,148,136,0.1);color:var(--primary);font-size:0.75rem;font-weight:600;padding:3px 12px;border-radius:999px;margin-bottom:10px}
.related-body h3{font-size:1.0625rem;font-weight:700;color:var(--text);margin-bottom:8px;line-height:1.4}
.related-body p{font-size:0.875rem;color:var(--text-light);line-height:1.6;margin-bottom:12px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.related-meta{font-size:0.8125rem;color:var(--text-lighter)}

/* ===== CTA ===== */
.cta-section{padding:72px 0;background:var(--bg-dark);position:relative;overflow:hidden}
.cta-section::before{content:'';position:absolute;top:0;left:0;right:0;bottom:0;background:url('/assets/images/backpic/back-3.png') center/cover no-repeat;opacity:0.15}
.cta-inner{position:relative;z-index:2;max-width:640px;margin:0 auto;text-align:center;color:#fff}
.cta-icon{width:64px;height:64px;border-radius:20px;background:linear-gradient(135deg,var(--accent),#d97706);display:flex;align-items:center;justify-content:center;font-size:1.5rem;margin:0 auto 20px;box-shadow:0 8px 24px rgba(245,158,11,0.35)}
.cta-inner h2{font-size:1.875rem;font-weight:800;margin-bottom:12px}
.cta-inner p{color:#cbd5e1;font-size:1rem;margin-bottom:28px;line-height:1.7}
.cta-buttons{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}

/* ===== Footer ===== */
.site-footer{background:var(--bg-dark);color:#94a3b8;border-top:1px solid rgba(255,255,255,0.06)}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.2fr;gap:40px;padding:56px 0 40px}
.footer-brand{display:flex;align-items:center;gap:8px;font-size:1.25rem;font-weight:800;color:#fff;margin-bottom:16px}
.footer-brand i{color:var(--primary-light)}
.footer-about p{font-size:0.875rem;line-height:1.8;max-width:340px}
.footer-col h4{color:#fff;font-size:0.9375rem;font-weight:700;margin-bottom:18px;position:relative;padding-bottom:10px}
.footer-col h4::after{content:'';position:absolute;bottom:0;left:0;width:28px;height:2px;background:var(--primary)}
.footer-col a{display:block;color:#94a3b8;font-size:0.875rem;padding:5px 0;transition:var(--transition)}
.footer-col a:hover{color:var(--primary-light);padding-left:6px}
.footer-col p{font-size:0.875rem;padding:5px 0}
.footer-col p i{color:var(--primary-light);margin-right:8px;width:16px}
.footer-bottom{border-top:1px solid rgba(255,255,255,0.06);padding:18px 0;text-align:center;font-size:0.8125rem;color:#64748b}

/* ===== Responsive ===== */
@media (max-width:1024px){
  .article-layout{grid-template-columns:1fr 300px;gap:24px}
  .article-content-wrap{padding:28px 28px 32px}
  .article-header-title{font-size:1.8rem}
  .related-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:768px){
  .header-top-inner{flex-direction:column;gap:12px;align-items:stretch}
  .search-wrap input{width:100%}
  .header-right{justify-content:space-between}
  .article-layout{grid-template-columns:1fr}
  .article-sidebar{order:2}
  .article-header-title{font-size:1.5rem}
  .article-content-wrap{padding:20px 16px 24px}
  .article-tags-share{flex-direction:column;align-items:flex-start}
  .related-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding:40px 0 32px}
  .cta-buttons{flex-direction:column;align-items:center}
  .breadcrumb-section{padding:14px 0}
  .nav-tab{padding:8px 16px;font-size:0.875rem}
}
@media (max-width:520px){
  .brand{font-size:1.15rem}
  .brand-icon{width:36px;height:36px}
  .search-wrap{padding:3px 4px 3px 12px}
  .search-wrap input{width:140px;font-size:0.8125rem}
  .btn-header{padding:7px 14px;font-size:0.8125rem}
  .article-header-title{font-size:1.3rem}
  .article-meta{gap:10px;font-size:0.8125rem}
  .related-grid{grid-template-columns:1fr}
  .section-header h2{font-size:1.5rem}
  .cta-inner p{font-size:0.9375rem;padding:0 16px}
}

/* roulang page: category1 */
:root {
            --primary: #1e5eff;
            --primary-dark: #0d47d4;
            --accent: #0ec4d8;
            --bg: #f3f6fb;
            --surface: #ffffff;
            --text: #10203f;
            --text-weak: #5a6b8c;
            --border: #e3e9f2;
            --radius: 16px;
            --shadow: 0 10px 30px rgba(16, 32, 63, .08);
            --shadow-hover: 0 16px 40px rgba(16, 32, 63, .14);
        }

        * {
            box-sizing: border-box;
        }

        body {
            margin: 0;
            font-family: "PingFang SC", "Microsoft YaHei", "Segoe UI", system-ui, sans-serif;
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }

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

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

        button,
        input {
            font-family: inherit;
        }

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

        .section {
            padding: 80px 0;
        }

        .section-light {
            background: var(--surface);
        }

        .section-gray {
            background: #eef2f8;
        }

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

        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(30, 94, 255, .08);
            color: var(--primary);
            font-size: .8rem;
            font-weight: 700;
            padding: 6px 14px;
            border-radius: 20px;
            letter-spacing: .5px;
        }

        .section-head h2 {
            font-size: 2rem;
            font-weight: 800;
            margin: 14px 0 10px;
            color: var(--text);
            letter-spacing: .5px;
        }

        .section-head p {
            color: var(--text-weak);
            font-size: .98rem;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 12px 24px;
            border-radius: 12px;
            font-weight: 600;
            font-size: .95rem;
            text-decoration: none;
            transition: all .25s ease;
            border: none;
            cursor: pointer;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            box-shadow: 0 8px 20px rgba(30, 94, 255, .3);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 12px 28px rgba(30, 94, 255, .42);
        }

        .btn-outline {
            background: transparent;
            border: 1.5px solid rgba(255, 255, 255, .75);
            color: #fff;
        }

        .btn-outline:hover {
            background: rgba(255, 255, 255, .12);
            transform: translateY(-2px);
        }

        .site-header {
            position: sticky;
            top: 0;
            z-index: 50;
            background: linear-gradient(135deg, #f8fbff 0%, #ffffff 100%);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 2px 16px rgba(16, 32, 63, .06);
        }

        .header-top-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 14px 0;
        }

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

        .brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--text);
            text-decoration: none;
            white-space: nowrap;
        }

        .brand-icon {
            width: 40px;
            height: 40px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.05rem;
            box-shadow: 0 6px 16px rgba(30, 94, 255, .3);
        }

        .search-wrap {
            display: flex;
            align-items: center;
            background: #fff;
            border: 1px solid var(--border);
            border-radius: 12px;
            padding: 6px 6px 6px 14px;
            width: 300px;
            box-shadow: 0 2px 8px rgba(16, 32, 63, .04);
            transition: border-color .2s;
        }

        .search-wrap:focus-within {
            border-color: var(--primary);
        }

        .search-wrap input {
            border: none;
            outline: none;
            flex: 1;
            font-size: .9rem;
            background: transparent;
            color: var(--text);
            min-width: 0;
        }

        .search-wrap button {
            width: 34px;
            height: 34px;
            border: none;
            border-radius: 9px;
            background: var(--primary);
            color: #fff;
            cursor: pointer;
            transition: background .2s;
            flex-shrink: 0;
        }

        .search-wrap button:hover {
            background: var(--primary-dark);
        }

        .btn-header {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 18px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--primary), #0d47d4);
            color: #fff;
            font-weight: 600;
            font-size: .9rem;
            text-decoration: none;
            box-shadow: 0 6px 16px rgba(30, 94, 255, .25);
            transition: all .25s;
            white-space: nowrap;
        }

        .btn-header:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 22px rgba(30, 94, 255, .35);
        }

        .header-nav {
            border-top: 1px solid var(--border);
            background: #fff;
        }

        .nav-tabs {
            display: flex;
            gap: 6px;
            overflow-x: auto;
            padding: 8px 0;
            scrollbar-width: none;
        }

        .nav-tabs::-webkit-scrollbar {
            display: none;
        }

        .nav-tab {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 22px;
            border-radius: 12px;
            font-weight: 600;
            font-size: .92rem;
            color: var(--text-weak);
            text-decoration: none;
            white-space: nowrap;
            transition: all .2s;
            border: 1px solid transparent;
        }

        .nav-tab:hover {
            background: #f0f4fb;
            color: var(--primary);
        }

        .nav-tab.active {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 6px 16px rgba(30, 94, 255, .25);
        }

        .hero-banner {
            position: relative;
            min-height: 500px;
            display: flex;
            align-items: center;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
        }

        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(115deg, rgba(8, 18, 40, .94) 20%, rgba(10, 38, 70, .78));
        }

        .hero-content {
            position: relative;
            z-index: 2;
            width: 100%;
            padding: 80px 0;
        }

        .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(14, 196, 216, .16);
            color: #7fe9f4;
            font-size: .8rem;
            font-weight: 700;
            padding: 6px 14px;
            border-radius: 20px;
            border: 1px solid rgba(14, 196, 216, .35);
        }

        .hero-content h1 {
            font-size: 2.8rem;
            font-weight: 800;
            color: #fff;
            line-height: 1.3;
            margin: 18px 0;
        }

        .hero-content .hero-desc {
            color: rgba(255, 255, 255, .85);
            font-size: 1.08rem;
            max-width: 640px;
        }

        .hero-stats {
            display: flex;
            gap: 24px;
            margin-top: 36px;
            flex-wrap: wrap;
        }

        .hero-stat {
            border-left: 2px solid rgba(14, 196, 216, .6);
            padding: 4px 0 4px 14px;
        }

        .hero-stat strong {
            display: block;
            font-size: 1.5rem;
            color: #fff;
            line-height: 1.3;
        }

        .hero-stat span {
            color: rgba(255, 255, 255, .7);
            font-size: .84rem;
        }

        .kpi-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .kpi-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 24px;
            box-shadow: var(--shadow);
            display: flex;
            align-items: center;
            gap: 16px;
            transition: all .3s ease;
        }

        .kpi-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }

        .kpi-icon {
            width: 52px;
            height: 52px;
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.25rem;
            flex-shrink: 0;
        }

        .kpi-icon.blue {
            background: rgba(30, 94, 255, .1);
            color: var(--primary);
        }

        .kpi-icon.cyan {
            background: rgba(14, 196, 216, .1);
            color: #0e9fb3;
        }

        .kpi-icon.green {
            background: rgba(22, 163, 74, .1);
            color: #16a34a;
        }

        .kpi-icon.orange {
            background: rgba(245, 158, 11, .1);
            color: #f59e0b;
        }

        .kpi-meta h3 {
            font-size: 1.55rem;
            font-weight: 800;
            color: var(--text);
            line-height: 1.2;
        }

        .kpi-meta span {
            font-size: .85rem;
            color: var(--text-weak);
        }

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

        .article-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: all .3s ease;
            display: flex;
            flex-direction: column;
        }

        .article-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
        }

        .article-thumb {
            position: relative;
            height: 190px;
            overflow: hidden;
        }

        .article-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .5s ease;
        }

        .article-card:hover .article-thumb img {
            transform: scale(1.06);
        }

        .article-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            background: rgba(8, 18, 40, .75);
            color: #fff;
            font-size: .75rem;
            padding: 4px 10px;
            border-radius: 8px;
            backdrop-filter: blur(6px);
        }

        .article-body {
            padding: 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .article-body h3 {
            font-size: 1.02rem;
            font-weight: 700;
            line-height: 1.5;
            margin: 0 0 8px;
        }

        .article-body h3 a {
            color: var(--text);
            text-decoration: none;
            transition: color .2s;
        }

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

        .article-body p {
            color: var(--text-weak);
            font-size: .88rem;
            flex: 1;
            margin: 0;
        }

        .article-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-top: 14px;
            font-size: .8rem;
            color: var(--text-weak);
            border-top: 1px dashed var(--border);
            padding-top: 12px;
        }

        .article-meta i {
            margin-right: 4px;
        }

        .rank-card {
            background: var(--surface);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
            overflow: hidden;
        }

        .rank-row {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 16px 20px;
            border-bottom: 1px solid var(--border);
            transition: background .2s;
        }

        .rank-row:last-child {
            border-bottom: none;
        }

        .rank-row:hover {
            background: #f6f9fe;
        }

        .rank-num {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: #eef2f8;
            color: var(--text-weak);
            font-weight: 800;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: .9rem;
            flex-shrink: 0;
        }

        .rank-num.top {
            background: linear-gradient(135deg, var(--primary), var(--accent));
            color: #fff;
        }

        .rank-name {
            flex: 1;
            font-weight: 600;
            font-size: .95rem;
        }

        .rank-hot {
            font-weight: 800;
            color: var(--primary);
            width: 60px;
            text-align: right;
            font-size: .95rem;
        }

        .rank-trend {
            width: 90px;
            font-size: .8rem;
            color: var(--text-weak);
            text-align: right;
        }

        .rank-trend i {
            color: #16a34a;
            margin-right: 2px;
        }

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

        .category-card {
            position: relative;
            border-radius: var(--radius);
            overflow: hidden;
            height: 220px;
            display: flex;
            align-items: flex-end;
            box-shadow: var(--shadow);
            transition: all .3s ease;
            text-decoration: none;
        }

        .category-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
        }

        .category-card img {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .category-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(8, 18, 40, 0) 30%, rgba(8, 18, 40, .85));
        }

        .category-body {
            position: relative;
            z-index: 2;
            padding: 22px;
            color: #fff;
        }

        .category-body h3 {
            font-size: 1.12rem;
            font-weight: 700;
            margin: 0 0 4px;
        }

        .category-body p {
            font-size: .82rem;
            opacity: .85;
            margin: 0;
        }

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

        .step-card {
            text-align: center;
            padding: 30px 20px;
            background: var(--surface);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            transition: all .3s ease;
        }

        .step-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }

        .step-num {
            width: 48px;
            height: 48px;
            margin: 0 auto 16px;
            border-radius: 14px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            color: #fff;
            font-weight: 800;
            font-size: 1.15rem;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 8px 20px rgba(30, 94, 255, .25);
        }

        .step-card h3 {
            font-size: 1.03rem;
            font-weight: 700;
            margin: 0 0 8px;
        }

        .step-card p {
            color: var(--text-weak);
            font-size: .85rem;
            margin: 0;
        }

        .faq-grid {
            max-width: 760px;
            margin: 0 auto;
            display: grid;
            gap: 14px;
        }

        .faq-item {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: 14px;
            overflow: hidden;
            box-shadow: 0 2px 10px rgba(16, 32, 63, .04);
        }

        .faq-item summary {
            padding: 18px 22px;
            font-weight: 600;
            cursor: pointer;
            list-style: none;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            font-size: .95rem;
        }

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

        .faq-item summary i.fa-chevron-down {
            transition: transform .3s;
            color: var(--text-weak);
        }

        .faq-item[open] summary i.fa-chevron-down {
            transform: rotate(180deg);
            color: var(--primary);
        }

        .faq-answer {
            padding: 0 22px 18px;
            color: var(--text-weak);
            font-size: .92rem;
            line-height: 1.8;
        }

        .cta-section {
            padding: 80px 0;
        }

        .cta-box {
            position: relative;
            border-radius: 24px;
            overflow: hidden;
            padding: 60px 40px;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            text-align: center;
        }

        .cta-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(120deg, rgba(11, 31, 72, .94), rgba(14, 196, 216, .72));
        }

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

        .cta-content h2 {
            font-size: 2rem;
            color: #fff;
            font-weight: 800;
            margin: 0 0 12px;
        }

        .cta-content p {
            color: rgba(255, 255, 255, .9);
            max-width: 560px;
            margin: 0 auto 28px;
        }

        .site-footer {
            background: #0a1630;
            color: rgba(255, 255, 255, .8);
            padding: 60px 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, .1);
        }

        .footer-brand {
            font-size: 1.2rem;
            font-weight: 800;
            color: #fff;
            display: flex;
            gap: 10px;
            align-items: center;
            margin-bottom: 14px;
        }

        .footer-about p {
            font-size: .88rem;
            line-height: 1.8;
            margin: 0;
        }

        .footer-col h4 {
            color: #fff;
            font-size: .95rem;
            margin: 0 0 14px;
            font-weight: 700;
        }

        .footer-col a {
            display: block;
            color: rgba(255, 255, 255, .7);
            text-decoration: none;
            font-size: .88rem;
            padding: 4px 0;
            transition: color .2s;
        }

        .footer-col a:hover {
            color: #7fe9f4;
        }

        .footer-col p {
            font-size: .86rem;
            margin: 4px 0;
        }

        .footer-bottom {
            padding: 20px 0;
            text-align: center;
            font-size: .82rem;
            color: rgba(255, 255, 255, .5);
        }

        @media (max-width: 992px) {
            .kpi-grid,
            .card-grid,
            .category-grid,
            .step-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .hero-content h1 {
                font-size: 2.2rem;
            }
            .search-wrap {
                width: 220px;
            }
        }

        @media (max-width: 768px) {
            .header-top-inner {
                flex-wrap: wrap;
            }
            .search-wrap {
                width: 100%;
                order: 3;
            }
            .section {
                padding: 56px 0;
            }
            .hero-banner {
                min-height: 440px;
            }
            .hero-content {
                padding: 56px 0;
            }
            .section-head h2 {
                font-size: 1.6rem;
            }
            .cta-box {
                padding: 44px 24px;
            }
            .cta-content h2 {
                font-size: 1.5rem;
            }
        }

        @media (max-width: 520px) {
            .kpi-grid,
            .card-grid,
            .category-grid,
            .step-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .hero-content h1 {
                font-size: 1.65rem;
            }
            .hero-stats {
                gap: 14px;
            }
            .hero-stat {
                width: calc(50% - 7px);
            }
            .btn {
                padding: 10px 18px;
            }
            .rank-row {
                flex-wrap: wrap;
                gap: 10px;
            }
            .rank-trend {
                width: auto;
                text-align: left;
            }
        }

/* roulang page: category2 */
:root {
    --brand: #0f6f69;
    --brand-dark: #0b5a55;
    --accent: #e8b04b;
    --bg: #f5f8f9;
    --bg-deep: #0b2b27;
    --text: #1e2a32;
    --text-weak: #66777f;
    --border: #dce5e8;
    --radius: 12px;
    --shadow: 0 4px 24px rgba(11, 43, 39, 0.06);
    --shadow-hover: 0 12px 32px rgba(11, 43, 39, 0.1);
    --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  }
  *,
  *::before,
  *::after {
    box-sizing: border-box;
  }
  html {
    scroll-behavior: smooth;
  }
  body {
    margin: 0;
    font-family: var(--font);
    font-size: 16px;
    line-height: 1.7;
    color: var(--text);
    background: var(--bg);
    -webkit-font-smoothing: antialiased;
  }
  a {
    color: inherit;
    text-decoration: none;
  }
  img {
    max-width: 100%;
    display: block;
  }
  button,
  input {
    font-family: inherit;
  }

  .container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
  }

  /* ===== Header ===== */
  .site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: #fff;
    box-shadow: 0 2px 14px rgba(11, 43, 39, 0.08);
  }
  .header-top {
    background: linear-gradient(135deg, #07322f 0%, #0f6f69 60%, #218d84 100%);
    color: #fff;
  }
  .header-top-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 74px;
    gap: 20px;
  }
  .brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 22px;
    font-weight: 800;
    color: #fff;
    letter-spacing: 0.5px;
    white-space: nowrap;
  }
  .brand-icon {
    width: 40px;
    height: 40px;
    display: grid;
    place-items: center;
    background: rgba(255, 255, 255, 0.14);
    border-radius: 10px;
    font-size: 18px;
    color: var(--accent);
  }
  .header-right {
    display: flex;
    align-items: center;
    gap: 14px;
  }
  .search-wrap {
    display: flex;
    align-items: center;
    background: rgba(255, 255, 255, 0.14);
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: 24px;
    overflow: hidden;
    transition: background 0.3s ease, border-color 0.3s ease;
  }
  .search-wrap:focus-within {
    background: rgba(255, 255, 255, 0.22);
    border-color: rgba(255, 255, 255, 0.4);
  }
  .search-wrap input {
    width: 220px;
    padding: 8px 16px;
    background: transparent;
    border: none;
    color: #fff;
    outline: none;
    font-size: 13px;
  }
  .search-wrap input::placeholder {
    color: rgba(255, 255, 255, 0.7);
  }
  .search-wrap button {
    background: transparent;
    border: none;
    color: #fff;
    padding: 8px 14px;
    cursor: pointer;
    font-size: 14px;
    transition: transform 0.2s ease;
  }
  .search-wrap button:hover {
    transform: scale(1.1);
  }
  .btn-header {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 20px;
    background: var(--accent);
    color: #0b2b27;
    border-radius: 24px;
    font-weight: 600;
    font-size: 14px;
    white-space: nowrap;
    box-shadow: 0 2px 8px rgba(232, 176, 75, 0.3);
    transition: all 0.25s ease;
  }
  .btn-header:hover {
    background: #f5c261;
    transform: translateY(-1px);
    box-shadow: 0 4px 14px rgba(232, 176, 75, 0.4);
  }
  .header-nav {
    background: #fff;
    border-bottom: 1px solid var(--border);
  }
  .nav-tabs {
    display: flex;
    gap: 6px;
    overflow-x: auto;
    padding: 10px 0;
    scrollbar-width: none;
  }
  .nav-tabs::-webkit-scrollbar {
    display: none;
  }
  .nav-tab {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: 8px 20px;
    border-radius: 24px;
    font-size: 14px;
    font-weight: 500;
    color: #334b55;
    white-space: nowrap;
    transition: all 0.2s ease;
  }
  .nav-tab:hover {
    background: var(--brand-50, #eef7f6);
    color: var(--brand);
  }
  .nav-tab.active {
    background: var(--brand);
    color: #fff;
    font-weight: 600;
    box-shadow: 0 2px 8px rgba(15, 111, 105, 0.25);
  }

  /* ===== Footer ===== */
  .site-footer {
    background: #0b2b27;
    color: #c9d8d6;
    padding: 64px 0 0;
    font-size: 14px;
  }
  .footer-grid {
    display: grid;
    grid-template-columns: 1.6fr 1fr 1fr 1fr;
    gap: 48px;
    padding-bottom: 48px;
  }
  .footer-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 20px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 16px;
  }
  .footer-brand i {
    color: var(--accent);
    font-size: 18px;
  }
  .footer-about p {
    line-height: 1.8;
    color: #93aaa7;
    max-width: 360px;
  }
  .footer-col h4 {
    color: #fff;
    font-size: 15px;
    font-weight: 600;
    margin: 0 0 16px;
    letter-spacing: 0.5px;
  }
  .footer-col a {
    display: block;
    color: #93aaa7;
    padding: 5px 0;
    transition: color 0.2s ease, padding-left 0.2s ease;
  }
  .footer-col a:hover {
    color: #fff;
    padding-left: 4px;
  }
  .footer-col p {
    color: #93aaa7;
    margin: 8px 0;
    display: flex;
    align-items: center;
    gap: 8px;
  }
  .footer-col p i {
    color: var(--accent);
    width: 16px;
  }
  .footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding: 20px 0;
    text-align: center;
    color: #768f8b;
    font-size: 13px;
  }

  /* ===== Page Banner ===== */
  .page-banner {
    position: relative;
    background: linear-gradient(135deg, rgba(7, 50, 47, 0.92) 0%, rgba(15, 111, 105, 0.82) 100%), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
    color: #fff;
    padding: 96px 0 88px;
  }
  .banner-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 255, 255, 0.12);
    border: 1px solid rgba(255, 255, 255, 0.2);
    padding: 6px 16px;
    border-radius: 24px;
    font-size: 13px;
    letter-spacing: 0.5px;
    margin-bottom: 18px;
    backdrop-filter: blur(8px);
  }
  .page-banner h1 {
    font-size: 44px;
    font-weight: 800;
    margin: 0 0 16px;
    letter-spacing: 1px;
    line-height: 1.2;
  }
  .page-banner .banner-desc {
    font-size: 16px;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.85);
    max-width: 640px;
    margin: 0 0 28px;
  }
  .banner-actions {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
  }
  .btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 28px;
    background: var(--accent);
    color: #0b2b27;
    border-radius: 32px;
    font-weight: 600;
    font-size: 14px;
    box-shadow: 0 4px 16px rgba(232, 176, 75, 0.35);
    transition: all 0.25s ease;
  }
  .btn-primary:hover {
    background: #f5c261;
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(232, 176, 75, 0.45);
  }
  .btn-ghost {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 28px;
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 32px;
    font-weight: 500;
    font-size: 14px;
    transition: all 0.25s ease;
  }
  .btn-ghost:hover {
    background: rgba(255, 255, 255, 0.18);
    border-color: rgba(255, 255, 255, 0.5);
  }
  .banner-metrics {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin-top: 40px;
  }
  .banner-metric {
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 14px;
    padding: 18px 16px;
    backdrop-filter: blur(8px);
    text-align: center;
  }
  .banner-metric .num {
    font-size: 26px;
    font-weight: 800;
    color: #fff;
  }
  .banner-metric .label {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.65);
    margin-top: 4px;
  }

  /* ===== Section common ===== */
  .section-pad {
    padding: 80px 0;
  }
  .section-head {
    max-width: 640px;
    margin-bottom: 48px;
  }
  .section-head.center {
    margin-left: auto;
    margin-right: auto;
    text-align: center;
  }
  .section-tag {
    display: inline-block;
    background: var(--brand-50, #eef7f6);
    color: var(--brand);
    font-size: 12px;
    font-weight: 700;
    padding: 5px 14px;
    border-radius: 20px;
    letter-spacing: 1px;
    margin-bottom: 12px;
  }
  .section-head h2 {
    font-size: 30px;
    font-weight: 800;
    color: #12202a;
    line-height: 1.3;
    margin: 0 0 12px;
  }
  .section-head p {
    color: var(--text-weak);
    font-size: 15px;
    line-height: 1.7;
    margin: 0;
  }

  /* ===== Stat Card ===== */
  .stat-card {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 28px 24px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
  }
  .stat-card::after {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, var(--brand), var(--accent));
    opacity: 0;
    transition: opacity 0.3s ease;
  }
  .stat-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
  }
  .stat-card:hover::after {
    opacity: 1;
  }
  .stat-card .stat-icon {
    width: 52px;
    height: 52px;
    background: var(--brand-50, #eef7f6);
    color: var(--brand);
    border-radius: 14px;
    display: grid;
    place-items: center;
    font-size: 22px;
    margin: 0 auto 16px;
  }
  .stat-card .stat-num {
    font-size: 30px;
    font-weight: 800;
    color: #12202a;
    line-height: 1.2;
  }
  .stat-card .stat-label {
    font-size: 13px;
    color: var(--text-weak);
    margin-top: 6px;
  }

  /* ===== Quick Entry Cards ===== */
  .quick-card {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 28px 24px;
    transition: all 0.3s ease;
    display: flex;
    gap: 16px;
    align-items: flex-start;
  }
  .quick-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
    border-color: var(--brand);
  }
  .quick-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: grid;
    place-items: center;
    font-size: 20px;
    background: var(--brand-50, #eef7f6);
    color: var(--brand);
    flex-shrink: 0;
  }
  .quick-card h3 {
    font-size: 16px;
    font-weight: 700;
    margin: 0 0 6px;
    color: #12202a;
  }
  .quick-card p {
    font-size: 13px;
    color: var(--text-weak);
    margin: 0 0 12px;
    line-height: 1.6;
  }
  .quick-card .link {
    font-size: 13px;
    font-weight: 600;
    color: var(--brand);
    transition: color 0.2s ease;
  }
  .quick-card .link:hover {
    color: var(--accent);
  }

  /* ===== Article Card ===== */
  .article-card {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
  }
  .article-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
    border-color: rgba(15, 111, 105, 0.3);
  }
  .cover-wrap {
    position: relative;
    overflow: hidden;
    aspect-ratio: 16 / 9;
  }
  .cover-wrap img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
  }
  .article-card:hover .cover-wrap img {
    transform: scale(1.05);
  }
  .cover-tag {
    position: absolute;
    top: 12px;
    left: 12px;
    background: rgba(11, 43, 39, 0.82);
    color: #fff;
    font-size: 12px;
    padding: 4px 12px;
    border-radius: 16px;
    backdrop-filter: blur(4px);
    letter-spacing: 0.5px;
  }
  .card-body {
    padding: 22px;
    display: flex;
    flex-direction: column;
    flex: 1;
  }
  .meta {
    display: flex;
    gap: 16px;
    font-size: 12px;
    color: var(--text-weak);
    margin-bottom: 10px;
  }
  .meta span {
    display: flex;
    align-items: center;
    gap: 5px;
  }
  .card-body h3 {
    font-size: 17px;
    font-weight: 700;
    line-height: 1.55;
    margin: 0 0 10px;
  }
  .card-body h3 a {
    color: #12202a;
    transition: color 0.2s ease;
  }
  .card-body h3 a:hover {
    color: var(--brand);
  }
  .card-body p {
    font-size: 14px;
    color: var(--text-weak);
    line-height: 1.7;
    margin: 0 0 16px;
    flex: 1;
  }
  .read-more {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    font-weight: 600;
    color: var(--brand);
    transition: gap 0.2s ease, color 0.2s ease;
  }
  .read-more:hover {
    gap: 10px;
    color: var(--accent);
  }

  /* ===== Process ===== */
  .process-section {
    background: var(--bg-deep);
    color: #fff;
  }
  .process-step {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 16px;
    padding: 32px 24px;
    position: relative;
    transition: all 0.3s ease;
  }
  .process-step:hover {
    background: rgba(255, 255, 255, 0.09);
    transform: translateY(-4px);
  }
  .step-num {
    font-size: 40px;
    font-weight: 800;
    color: var(--accent);
    line-height: 1;
    margin-bottom: 16px;
    opacity: 0.9;
  }
  .process-step h3 {
    font-size: 17px;
    font-weight: 700;
    margin: 0 0 10px;
    color: #fff;
  }
  .process-step p {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.65);
    line-height: 1.7;
    margin: 0;
  }

  /* ===== FAQ ===== */
  .faq-list {
    max-width: 820px;
    margin: 0 auto;
  }
  .faq-item {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 14px;
    margin-bottom: 14px;
    overflow: hidden;
    transition: all 0.3s ease;
  }
  .faq-item:hover {
    border-color: rgba(15, 111, 105, 0.35);
  }
  .faq-item summary {
    list-style: none;
    cursor: pointer;
    padding: 20px 24px;
    font-size: 15px;
    font-weight: 600;
    color: #12202a;
    display: flex;
    align-items: center;
    gap: 12px;
    transition: color 0.2s ease;
  }
  .faq-item summary::-webkit-details-marker {
    display: none;
  }
  .faq-item summary::before {
    content: "\f059";
    font-family: "Font Awesome 6 Free";
    font-weight: 400;
    color: var(--brand);
    font-size: 18px;
    flex-shrink: 0;
  }
  .faq-item summary::after {
    content: "\f078";
    font-family: "Font Awesome 6 Free";
    font-weight: 900;
    margin-left: auto;
    font-size: 12px;
    color: var(--text-weak);
    transition: transform 0.3s ease;
  }
  .faq-item[open] summary::after {
    transform: rotate(180deg);
  }
  .faq-item[open] summary {
    color: var(--brand);
  }
  .faq-answer {
    padding: 0 24px 22px 54px;
    font-size: 14px;
    color: var(--text-weak);
    line-height: 1.8;
  }

  /* ===== CTA ===== */
  .cta-section {
    background: linear-gradient(135deg, #07322f 0%, #0f6f69 100%);
    border-radius: 0;
    padding: 80px 0;
    color: #fff;
    text-align: center;
    position: relative;
    overflow: hidden;
  }
  .cta-section::before {
    content: "";
    position: absolute;
    top: -60px;
    right: -60px;
    width: 260px;
    height: 260px;
    background: rgba(232, 176, 75, 0.12);
    border-radius: 50%;
  }
  .cta-section::after {
    content: "";
    position: absolute;
    bottom: -80px;
    left: -40px;
    width: 220px;
    height: 220px;
    background: rgba(255, 255, 255, 0.06);
    border-radius: 50%;
  }
  .cta-section .container {
    position: relative;
    z-index: 2;
  }
  .cta-section h2 {
    font-size: 30px;
    font-weight: 800;
    margin: 0 0 12px;
  }
  .cta-section p {
    font-size: 15px;
    color: rgba(255, 255, 255, 0.8);
    max-width: 560px;
    margin: 0 auto 28px;
  }
  .btn-light {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 30px;
    background: #fff;
    color: #0b2b27;
    border-radius: 32px;
    font-weight: 600;
    font-size: 14px;
    transition: all 0.25s ease;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
  }
  .btn-light:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
    background: #eef7f6;
  }
  .cta-meta {
    margin-top: 20px;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.7);
  }

  /* ===== Responsive ===== */
  @media (max-width: 1024px) {
    .footer-grid {
      grid-template-columns: 1fr 1fr;
      gap: 36px;
    }
    .banner-metrics {
      grid-template-columns: repeat(2, 1fr);
    }
    .page-banner h1 {
      font-size: 36px;
    }
    .section-head h2 {
      font-size: 26px;
    }
  }

  @media (max-width: 768px) {
    .header-top-inner {
      height: auto;
      flex-wrap: wrap;
      padding: 14px 0;
      gap: 12px;
    }
    .brand {
      font-size: 18px;
    }
    .brand-icon {
      width: 34px;
      height: 34px;
      font-size: 15px;
    }
    .search-wrap input {
      width: 130px;
    }
    .btn-header {
      padding: 7px 14px;
      font-size: 13px;
    }
    .nav-tab {
      padding: 7px 14px;
      font-size: 13px;
    }
    .page-banner {
      padding: 64px 0 56px;
    }
    .page-banner h1 {
      font-size: 30px;
    }
    .banner-actions {
      flex-direction: column;
      align-items: flex-start;
    }
    .section-pad {
      padding: 56px 0;
    }
    .section-head {
      margin-bottom: 32px;
    }
    .section-head h2 {
      font-size: 23px;
    }
    .footer-grid {
      grid-template-columns: 1fr;
      gap: 28px;
      padding-bottom: 32px;
    }
    .footer-about p {
      max-width: 100%;
    }
    .cta-section {
      padding: 56px 0;
    }
    .cta-section h2 {
      font-size: 24px;
    }
  }

  @media (max-width: 520px) {
    .container {
      padding: 0 16px;
    }
    .header-right {
      width: 100%;
      justify-content: space-between;
    }
    .search-wrap {
      flex: 1;
    }
    .search-wrap input {
      width: 100%;
    }
    .page-banner h1 {
      font-size: 25px;
    }
    .banner-metrics {
      grid-template-columns: 1fr 1fr;
      gap: 12px;
    }
    .banner-metric .num {
      font-size: 20px;
    }
    .btn-primary,
    .btn-ghost {
      width: 100%;
      justify-content: center;
    }
  }

  a:focus-visible,
  button:focus-visible,
  input:focus-visible {
    outline: 3px solid var(--accent);
    outline-offset: 2px;
  }