/* roulang page: index */
:root{
      --bg:#0b0d10;
      --bg-2:#0f1318;
      --panel:#11161c;
      --panel-2:#151b22;
      --line:rgba(255,255,255,.08);
      --line-2:rgba(67,240,168,.18);
      --text:#f3f7fb;
      --muted:#9ba7b5;
      --soft:#c7d0da;
      --brand:#43f0a8;
      --brand-2:#19cfd6;
      --accent:#ffb84d;
      --danger:#ff6b6b;
      --shadow:0 18px 40px rgba(0,0,0,.28);
      --shadow-soft:0 10px 24px rgba(0,0,0,.16);
      --radius:18px;
      --radius-lg:24px;
      --container:1200px;
      --gap:24px;
      --gap-sm:14px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
      color:var(--text);
      background:
        radial-gradient(circle at top left, rgba(67,240,168,.10), transparent 28%),
        radial-gradient(circle at top right, rgba(25,207,214,.08), transparent 24%),
        linear-gradient(180deg, #0b0d10 0%, #0d1116 100%);
      min-height:100vh;
      line-height:1.7;
      text-rendering:optimizeLegibility;
      -webkit-font-smoothing:antialiased;
    }
    body::before{
      content:"";
      position:fixed;
      inset:0;
      pointer-events:none;
      background-image:
        linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,.035) 1px, transparent 1px);
      background-size:42px 42px;
      mask-image:linear-gradient(180deg, rgba(0,0,0,.65), rgba(0,0,0,.1));
      opacity:.22;
      z-index:-1;
    }
    img{max-width:100%;display:block}
    a{color:inherit;text-decoration:none}
    button,input,select,textarea{font:inherit}
    button,input{border:none;outline:none}
    ::selection{background:rgba(67,240,168,.24);color:#fff}
    .skip-link{
      position:absolute;
      left:-999px;
      top:12px;
      padding:10px 14px;
      background:var(--brand);
      color:#08110d;
      border-radius:999px;
      z-index:1000;
      font-weight:700;
    }
    .skip-link:focus{left:12px}
    .container{
      width:min(var(--container), calc(100% - 32px));
      margin:0 auto;
    }
    .site-header{
      position:sticky;
      top:0;
      z-index:100;
      background:rgba(9,11,15,.82);
      backdrop-filter:blur(14px);
      border-bottom:1px solid rgba(255,255,255,.06);
    }
    .header-inner{
      display:flex;
      align-items:center;
      gap:18px;
      min-height:82px;
      padding:14px 0;
    }
    .brand{
      display:flex;
      align-items:center;
      gap:12px;
      min-width:0;
      flex:0 0 auto;
    }
    .brand-mark{
      width:44px;
      height:44px;
      border-radius:14px;
      display:grid;
      place-items:center;
      background:linear-gradient(135deg, rgba(67,240,168,.18), rgba(25,207,214,.18));
      border:1px solid rgba(67,240,168,.26);
      color:var(--brand);
      font-size:20px;
      font-weight:900;
      box-shadow:var(--shadow-soft);
    }
    .brand-text{display:flex;flex-direction:column;min-width:0}
    .brand-text strong{
      font-size:16px;
      letter-spacing:.2px;
      line-height:1.1;
      white-space:nowrap;
      overflow:hidden;
      text-overflow:ellipsis;
    }
    .brand-text small{
      color:var(--muted);
      font-size:12px;
      margin-top:3px;
      white-space:nowrap;
      overflow:hidden;
      text-overflow:ellipsis;
    }
    .nav{
      display:flex;
      align-items:center;
      gap:10px;
      margin-left:12px;
      flex:1 1 auto;
      min-width:0;
    }
    .nav-link{
      position:relative;
      padding:10px 14px;
      border-radius:999px;
      color:var(--soft);
      font-weight:600;
      border:1px solid transparent;
      transition:all .22s ease;
      white-space:nowrap;
    }
    .nav-link:hover,
    .nav-link:focus-visible{
      color:#fff;
      background:rgba(255,255,255,.04);
      border-color:rgba(255,255,255,.08);
      transform:translateY(-1px);
    }
    .nav-link.active{
      color:#08110d;
      background:linear-gradient(135deg, var(--brand), #8cf3c8);
      box-shadow:0 10px 26px rgba(67,240,168,.18);
    }
    .top-search{
      display:flex;
      align-items:center;
      gap:8px;
      margin-left:auto;
      padding:8px;
      border-radius:999px;
      background:rgba(255,255,255,.04);
      border:1px solid rgba(255,255,255,.08);
      box-shadow:inset 0 1px 0 rgba(255,255,255,.03);
      flex:0 0 300px;
    }
    .top-search input{
      width:100%;
      min-width:0;
      color:#fff;
      background:transparent;
      padding:8px 12px;
    }
    .top-search input::placeholder{color:#7f8a97}
    .top-search button,
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      border-radius:999px;
      padding:12px 18px;
      font-weight:700;
      letter-spacing:.2px;
      cursor:pointer;
      transition:transform .2s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease, color .2s ease;
      white-space:nowrap;
    }
    .top-search button{
      background:linear-gradient(135deg, var(--brand), #84eec8);
      color:#07110d;
      padding:10px 16px;
      box-shadow:0 10px 24px rgba(67,240,168,.18);
    }
    .btn-primary{
      background:linear-gradient(135deg, var(--brand), #86efca);
      color:#07110d;
      box-shadow:0 14px 28px rgba(67,240,168,.16);
    }
    .btn-secondary{
      background:rgba(255,255,255,.03);
      border:1px solid rgba(255,255,255,.10);
      color:#f0f6fb;
    }
    .btn-outline{
      background:transparent;
      border:1px solid rgba(67,240,168,.28);
      color:#bff7df;
    }
    .btn:hover,
    .btn:focus-visible,
    .top-search button:hover,
    .top-search button:focus-visible{
      transform:translateY(-1px);
    }
    .btn-primary:hover,.btn-primary:focus-visible{box-shadow:0 18px 34px rgba(67,240,168,.22)}
    .btn-secondary:hover,.btn-secondary:focus-visible{background:rgba(255,255,255,.06)}
    .btn-outline:hover,.btn-outline:focus-visible{background:rgba(67,240,168,.08)}
    .hero{
      position:relative;
      padding:28px 0 16px;
      overflow:hidden;
    }
    .hero::before{
      content:"";
      position:absolute;
      inset:0;
      background:
        linear-gradient(180deg, rgba(11,13,16,.18), rgba(11,13,16,.88)),
        url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
      opacity:.28;
      z-index:-2;
    }
    .hero::after{
      content:"";
      position:absolute;
      inset:auto 0 0;
      height:1px;
      background:linear-gradient(90deg, transparent, rgba(67,240,168,.35), transparent);
      z-index:-1;
    }
    .hero-shell{
      display:grid;
      grid-template-columns:1.08fr .92fr;
      gap:26px;
      align-items:stretch;
      padding:24px 0 10px;
    }
    .hero-copy{
      padding:18px 0 12px;
    }
    .eyebrow-row{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin-bottom:16px;
    }
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:6px;
      padding:7px 12px;
      border-radius:999px;
      font-size:13px;
      font-weight:700;
      color:#d8fff0;
      background:rgba(67,240,168,.08);
      border:1px solid rgba(67,240,168,.16);
    }
    .eyebrow.accent{
      background:rgba(255,184,77,.10);
      border-color:rgba(255,184,77,.18);
      color:#ffe3b4;
    }
    .hero h1{
      margin:0;
      font-size:clamp(34px, 4.2vw, 60px);
      line-height:1.08;
      letter-spacing:-.02em;
      max-width:10.6em;
    }
    .hero p{
      margin:18px 0 0;
      color:var(--soft);
      font-size:16px;
      max-width:58ch;
    }
    .hero-actions{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      margin-top:22px;
    }
    .hero-form{
      display:flex;
      gap:10px;
      margin-top:18px;
      padding:10px;
      border-radius:22px;
      background:rgba(255,255,255,.04);
      border:1px solid rgba(255,255,255,.08);
      box-shadow:var(--shadow-soft);
      max-width:620px;
    }
    .hero-form input{
      flex:1;
      background:transparent;
      color:#fff;
      padding:12px 14px;
      min-width:0;
    }
    .hero-form input::placeholder{color:#8492a1}
    .hero-form button{
      padding:12px 18px;
      border-radius:16px;
      background:linear-gradient(135deg, var(--brand-2), #71ebd8);
      color:#07110d;
      font-weight:800;
    }
    .hero-visual{
      position:relative;
      min-height:520px;
      border-radius:var(--radius-lg);
      overflow:hidden;
      border:1px solid rgba(255,255,255,.08);
      box-shadow:var(--shadow);
      background:linear-gradient(180deg, rgba(255,255,255,.04), rgba(255,255,255,.01));
    }
    .hero-visual .visual-bg{
      position:absolute;
      inset:0;
      background:
        linear-gradient(180deg, rgba(6,8,11,.05), rgba(6,8,11,.82)),
        url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
      transform:scale(1.02);
    }
    .hero-visual .visual-grid{
      position:absolute;
      inset:0;
      background:
        linear-gradient(90deg, rgba(255,255,255,.05) 1px, transparent 1px),
        linear-gradient(rgba(255,255,255,.05) 1px, transparent 1px);
      background-size:58px 58px;
      opacity:.22;
      mix-blend-mode:screen;
    }
    .visual-content{
      position:relative;
      height:100%;
      display:flex;
      flex-direction:column;
      justify-content:space-between;
      padding:20px;
      gap:18px;
    }
    .visual-hero-card{
      position:relative;
      overflow:hidden;
      border-radius:20px;
      border:1px solid rgba(255,255,255,.10);
      background:linear-gradient(180deg, rgba(17,22,28,.48), rgba(17,22,28,.18));
      box-shadow:var(--shadow-soft);
      min-height:300px;
    }
    .visual-hero-card img{
      width:100%;
      height:100%;
      object-fit:cover;
      opacity:.88;
      filter:saturate(1.05) contrast(1.02);
    }
    .visual-hero-card .overlay{
      position:absolute;
      inset:auto 0 0;
      padding:18px;
      background:linear-gradient(180deg, transparent, rgba(6,8,11,.92));
    }
    .overlay .mini-title{
      margin:10px 0 6px;
      font-size:22px;
      line-height:1.15;
    }
    .overlay p{
      margin:0;
      color:#dbe4ec;
      font-size:14px;
      max-width:34ch;
    }
    .floating-metrics{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:12px;
    }
    .floating-card{
      display:flex;
      gap:12px;
      align-items:center;
      padding:12px;
      border-radius:18px;
      background:rgba(12,16,20,.74);
      border:1px solid rgba(255,255,255,.08);
      box-shadow:var(--shadow-soft);
      min-height:94px;
    }
    .floating-card img{
      width:72px;
      height:72px;
      border-radius:14px;
      object-fit:cover;
      flex:0 0 auto;
      border:1px solid rgba(255,255,255,.08);
    }
    .floating-card strong{
      display:block;
      font-size:15px;
      line-height:1.35;
      margin-bottom:4px;
    }
    .floating-card span{
      color:var(--muted);
      font-size:13px;
    }
    .stats{
      padding:6px 0 10px;
    }
    .stats-grid{
      display:grid;
      grid-template-columns:repeat(4, minmax(0,1fr));
      gap:14px;
    }
    .stat{
      padding:18px 18px 16px;
      border-radius:20px;
      background:linear-gradient(180deg, rgba(255,255,255,.04), rgba(255,255,255,.02));
      border:1px solid rgba(255,255,255,.08);
      box-shadow:var(--shadow-soft);
    }
    .stat .label{
      color:var(--muted);
      font-size:13px;
    }
    .stat .value{
      display:flex;
      align-items:baseline;
      gap:6px;
      margin-top:8px;
      font-size:28px;
      font-weight:900;
      color:#fff;
      letter-spacing:-.02em;
    }
    .stat .value small{
      font-size:13px;
      color:#8ea0af;
      font-weight:600;
    }
    .stat .hint{
      margin-top:8px;
      color:var(--soft);
      font-size:13px;
    }
    .section{
      padding:28px 0;
    }
    .section-head{
      display:flex;
      align-items:flex-end;
      justify-content:space-between;
      gap:18px;
      margin-bottom:18px;
    }
    .section-head h2{
      margin:0;
      font-size:26px;
      line-height:1.15;
      letter-spacing:-.01em;
    }
    .section-head p{
      margin:0;
      color:var(--muted);
      max-width:64ch;
      font-size:14px;
    }
    .section-tools{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      justify-content:flex-end;
    }
    .tag{
      display:inline-flex;
      align-items:center;
      gap:6px;
      padding:8px 12px;
      border-radius:999px;
      font-size:13px;
      font-weight:700;
      color:#dfe7ef;
      background:rgba(255,255,255,.04);
      border:1px solid rgba(255,255,255,.08);
    }
    .tag.hot{
      background:rgba(255,184,77,.10);
      border-color:rgba(255,184,77,.20);
      color:#ffe1ae;
    }
    .tag.success{
      background:rgba(67,240,168,.10);
      border-color:rgba(67,240,168,.20);
      color:#d9fff0;
    }
    .feature-grid{
      display:grid;
      grid-template-columns:1.15fr .85fr;
      gap:18px;
    }
    .feature-card,
    .feed-item,
    .side-card,
    .topic-card,
    .faq-item,
    .cta-panel{
      border-radius:var(--radius);
      background:linear-gradient(180deg, rgba(255,255,255,.045), rgba(255,255,255,.02));
      border:1px solid rgba(255,255,255,.08);
      box-shadow:var(--shadow-soft);
    }
    .feature-card{
      overflow:hidden;
      position:relative;
    }
    .feature-card .thumb{
      position:relative;
      aspect-ratio:16/10;
      overflow:hidden;
      border-bottom:1px solid rgba(255,255,255,.06);
    }
    .feature-card .thumb img{
      width:100%;
      height:100%;
      object-fit:cover;
      transition:transform .45s ease;
      filter:saturate(1.02);
    }
    .feature-card:hover .thumb img{transform:scale(1.03)}
    .feature-card .content{
      padding:18px 18px 20px;
    }
    .feature-card h3{
      margin:8px 0 10px;
      font-size:22px;
      line-height:1.25;
    }
    .feature-card p{
      margin:0;
      color:var(--soft);
      font-size:14px;
    }
    .meta-row{
      display:flex;
      flex-wrap:wrap;
      gap:8px;
      align-items:center;
      margin-top:14px;
    }
    .meta-row .meta{
      color:#8fa0ae;
      font-size:12px;
    }
    .feature-stack{
      display:grid;
      gap:18px;
    }
    .feature-stack .feature-card h3{
      font-size:18px;
      margin-top:2px;
    }
    .feature-stack .feature-card .content{
      display:grid;
      grid-template-columns:120px 1fr;
      gap:14px;
      align-items:center;
    }
    .feature-stack .thumb{
      border-bottom:none;
      border-right:1px solid rgba(255,255,255,.06);
      aspect-ratio:auto;
      min-height:120px;
      height:100%;
    }
    .feature-stack .thumb img{height:100%}
    .feed-layout{
      display:grid;
      grid-template-columns:1.1fr .9fr;
      gap:18px;
      align-items:start;
    }
    .feed-list{
      display:grid;
      gap:14px;
    }
    .feed-item{
      display:grid;
      grid-template-columns:126px 1fr;
      overflow:hidden;
    }
    .feed-item .thumb{
      min-height:100%;
      border-right:1px solid rgba(255,255,255,.06);
    }
    .feed-item .thumb img{
      width:100%;
      height:100%;
      object-fit:cover;
    }
    .feed-item .content{
      padding:16px 16px 16px 0;
      display:flex;
      flex-direction:column;
      justify-content:center;
    }
    .feed-item h3{
      margin:8px 0 8px;
      font-size:18px;
      line-height:1.3;
    }
    .feed-item p{
      margin:0;
      color:var(--soft);
      font-size:14px;
    }
    .feed-item .meta-row{margin-top:10px}
    .timeline{
      display:grid;
      gap:12px;
    }
    .timeline-card{
      padding:16px;
      border-radius:18px;
      background:rgba(255,255,255,.03);
      border:1px solid rgba(255,255,255,.08);
    }
    .timeline-card .time{
      color:#9fb0bd;
      font-size:12px;
      letter-spacing:.08em;
      text-transform:uppercase;
    }
    .timeline-card strong{
      display:block;
      margin-top:6px;
      font-size:16px;
      line-height:1.35;
    }
    .timeline-card p{
      margin:8px 0 0;
      color:var(--soft);
      font-size:13px;
    }
    .side-card{
      padding:18px;
      margin-bottom:16px;
    }
    .side-card h3{
      margin:0 0 12px;
      font-size:18px;
      line-height:1.25;
    }
    .side-card p{
      margin:0;
      color:var(--soft);
      font-size:14px;
    }
    .keyword-cloud{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
    }
    .keyword-cloud .tag{padding:9px 12px}
    .topic-grid{
      display:grid;
      grid-template-columns:1.2fr .8fr;
      gap:18px;
      align-items:stretch;
    }
    .topic-card{
      overflow:hidden;
      padding:18px;
      position:relative;
    }
    .topic-card.primary{
      min-height:280px;
      display:flex;
      flex-direction:column;
      justify-content:flex-end;
      background:
        linear-gradient(180deg, rgba(4,6,8,.05), rgba(4,6,8,.92)),
        url('/assets/images/coverpic/cover-4.webp') center/cover no-repeat;
    }
    .topic-card.primary::before{
      content:"";
      position:absolute;
      inset:0;
      background:linear-gradient(180deg, rgba(67,240,168,.06), rgba(0,0,0,.28));
      pointer-events:none;
    }
    .topic-card.primary .inner{
      position:relative;
      z-index:1;
      max-width:34ch;
    }
    .topic-card.primary h3{
      margin:10px 0 8px;
      font-size:24px;
      line-height:1.18;
    }
    .topic-card.primary p{
      margin:0;
      color:#e5edf4;
      font-size:14px;
    }
    .topic-card.primary .link-row{
      margin-top:16px;
      display:flex;
      flex-wrap:wrap;
      gap:10px;
    }
    .mini-topic-grid{
      display:grid;
      grid-template-columns:repeat(2, minmax(0,1fr));
      gap:14px;
    }
    .mini-topic{
      padding:16px;
      min-height:128px;
      display:flex;
      flex-direction:column;
      justify-content:space-between;
      background:rgba(255,255,255,.03);
      border-radius:18px;
      border:1px solid rgba(255,255,255,.08);
      transition:transform .2s ease, border-color .2s ease;
    }
    .mini-topic:hover{transform:translateY(-2px);border-color:rgba(67,240,168,.20)}
    .mini-topic strong{
      font-size:16px;
      line-height:1.3;
    }
    .mini-topic span{
      color:var(--muted);
      font-size:13px;
      margin-top:8px;
    }
    .topic-chip-row{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin-top:16px;
    }
    .topic-chip{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      padding:10px 13px;
      border-radius:999px;
      background:rgba(255,255,255,.04);
      border:1px solid rgba(255,255,255,.08);
      color:#dfe7ef;
      font-size:13px;
      font-weight:700;
    }
    .faq-grid{
      display:grid;
      gap:12px;
    }
    .faq-item{
      padding:0;
      overflow:hidden;
    }
    .faq-item summary{
      list-style:none;
      cursor:pointer;
      padding:18px 20px;
      font-weight:800;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
      outline:none;
    }
    .faq-item summary::-webkit-details-marker{display:none}
    .faq-item summary::after{
      content:"+";
      width:28px;
      height:28px;
      display:grid;
      place-items:center;
      border-radius:999px;
      background:rgba(255,255,255,.05);
      color:var(--brand);
      flex:0 0 auto;
      transition:transform .2s ease, background .2s ease;
    }
    .faq-item[open] summary::after{
      content:"–";
      background:rgba(67,240,168,.10);
    }
    .faq-item p{
      margin:0;
      padding:0 20px 18px;
      color:var(--soft);
      font-size:14px;
    }
    .cta-panel{
      position:relative;
      overflow:hidden;
      padding:28px;
      background:
        linear-gradient(135deg, rgba(11,13,16,.9), rgba(11,13,16,.72)),
        url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
    }
    .cta-panel::after{
      content:"";
      position:absolute;
      inset:0;
      background:linear-gradient(90deg, rgba(67,240,168,.08), transparent 54%);
      pointer-events:none;
    }
    .cta-inner{
      position:relative;
      z-index:1;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:22px;
    }
    .cta-inner h2{
      margin:0;
      font-size:28px;
      line-height:1.2;
    }
    .cta-inner p{
      margin:10px 0 0;
      color:#dbe5ee;
      max-width:64ch;
    }
    .cta-actions{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      flex:0 0 auto;
    }
    .site-footer{
      margin-top:18px;
      padding:28px 0 22px;
      border-top:1px solid rgba(255,255,255,.08);
      background:rgba(8,10,14,.72);
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.3fr .8fr .9fr;
      gap:22px;
      align-items:start;
    }
    .footer-brand strong{
      display:block;
      font-size:18px;
      margin-bottom:8px;
    }
    .footer-brand p{
      margin:0;
      color:var(--soft);
      font-size:14px;
      max-width:56ch;
    }
    .footer-col h3{
      margin:0 0 12px;
      font-size:15px;
      color:#fff;
    }
    .footer-links{
      display:grid;
      gap:10px;
    }
    .footer-links a{
      color:var(--muted);
      transition:color .2s ease, transform .2s ease;
      width:max-content;
    }
    .footer-links a:hover,
    .footer-links a:focus-visible{
      color:#fff;
      transform:translateX(2px);
    }
    .footer-meta{
      margin-top:18px;
      padding-top:14px;
      border-top:1px solid rgba(255,255,255,.08);
      color:#8d98a6;
      font-size:13px;
      display:flex;
      flex-wrap:wrap;
      justify-content:space-between;
      gap:12px;
    }
    .focus-ring:focus-visible,
    a:focus-visible,
    button:focus-visible,
    input:focus-visible,
    summary:focus-visible{
      outline:2px solid rgba(67,240,168,.5);
      outline-offset:2px;
    }
    @media (max-width: 1200px){
      .header-inner{flex-wrap:wrap}
      .top-search{flex:1 1 100%; order:4; margin-left:0}
      .feature-grid,
      .feed-layout,
      .topic-grid,
      .footer-grid,
      .hero-shell{grid-template-columns:1fr}
      .hero-visual{min-height:460px}
      .stats-grid{grid-template-columns:repeat(2, minmax(0,1fr))}
      .section-head{align-items:flex-start; flex-direction:column}
      .section-tools{justify-content:flex-start}
    }
    @media (max-width: 768px){
      .container{width:min(var(--container), calc(100% - 22px))}
      .header-inner{min-height:auto}
      .nav{order:3; flex:1 1 100%; margin-left:0; overflow:auto; padding-bottom:2px}
      .brand{flex:1 1 auto}
      .hero{padding-top:18px}
      .hero h1{max-width:100%}
      .hero-form{flex-direction:column; border-radius:22px}
      .hero-form button{width:100%}
      .floating-metrics{grid-template-columns:1fr}
      .feature-stack .feature-card .content,
      .feed-item{grid-template-columns:1fr}
      .feature-stack .thumb,
      .feed-item .thumb{border-right:none; border-bottom:1px solid rgba(255,255,255,.06)}
      .cta-inner{flex-direction:column; align-items:flex-start}
      .footer-meta{flex-direction:column}
      .mini-topic-grid{grid-template-columns:1fr}
    }
    @media (max-width: 520px){
      .brand-text strong{font-size:15px}
      .brand-mark{width:40px;height:40px;border-radius:13px}
      .nav-link{padding:9px 12px}
      .hero h1{font-size:clamp(30px, 10vw, 42px)}
      .hero p{font-size:15px}
      .stats-grid{grid-template-columns:1fr}
      .section{padding:22px 0}
      .section-head h2{font-size:22px}
      .feature-card h3{font-size:19px}
      .topic-card.primary h3{font-size:22px}
      .cta-panel{padding:20px}
      .cta-inner h2{font-size:24px}
      .btn,.top-search button{width:100%}
      .hero-actions{flex-direction:column}
      .hero-actions .btn{width:100%}
    }

/* roulang page: category1 */
:root{
      --bg: #08110e;
      --bg-2: #0d1512;
      --panel: #111915;
      --panel-2: #0f1714;
      --card: #13211d;
      --line: rgba(255,255,255,.08);
      --line-2: rgba(65,227,154,.18);
      --text: #eef7f1;
      --muted: #9aaba3;
      --soft: #c7d3cd;
      --accent: #3fe39a;
      --accent-2: #2ec7b2;
      --warm: #f0a94f;
      --warn: #ffca72;
      --shadow: 0 18px 48px rgba(0,0,0,.34);
      --shadow-soft: 0 10px 24px rgba(0,0,0,.24);
      --radius: 18px;
      --radius-sm: 12px;
      --radius-xs: 10px;
      --container: 1240px;
      --gap: 24px;
      --gap-sm: 16px;
      --speed: 180ms ease;
      --focus: 0 0 0 3px rgba(63,227,154,.18), 0 0 0 1px rgba(63,227,154,.45) inset;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      color:var(--text);
      background:
        radial-gradient(circle at top left, rgba(63,227,154,.08), transparent 24%),
        radial-gradient(circle at 85% 15%, rgba(240,169,79,.08), transparent 18%),
        linear-gradient(180deg, #07100d 0%, #0a1210 34%, #09100e 100%);
      font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
      line-height:1.7;
      overflow-x:hidden;
    }
    body::before{
      content:"";
      position:fixed;
      inset:0;
      pointer-events:none;
      background-image:
        linear-gradient(rgba(255,255,255,.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,.03) 1px, transparent 1px);
      background-size: 42px 42px;
      mask-image: linear-gradient(180deg, rgba(0,0,0,.36), rgba(0,0,0,.08) 50%, transparent 100%);
      opacity:.35;
      z-index:0;
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input,select,textarea{font:inherit}
    ::selection{background:rgba(63,227,154,.25);color:#fff}
    .container{
      width:min(var(--container), calc(100% - 32px));
      margin-inline:auto;
      position:relative;
      z-index:1;
    }
    .focus-ring:focus-visible,
    .nav-link:focus-visible,
    .btn:focus-visible,
    .top-search input:focus-visible,
    .top-search button:focus-visible,
    .chip:focus-visible,
    .footer-links a:focus-visible,
    summary:focus-visible{
      outline:none;
      box-shadow:var(--focus);
    }

    .site-header{
      position:sticky;
      top:0;
      z-index:40;
      background:rgba(7, 12, 10, .88);
      backdrop-filter:saturate(140%) blur(10px);
      border-bottom:1px solid var(--line);
    }
    .header-inner{
      min-height:76px;
      display:flex;
      align-items:center;
      gap:18px;
      padding:12px 0;
    }
    .brand{
      display:flex;
      align-items:center;
      gap:12px;
      flex:0 0 auto;
      min-width:0;
    }
    .brand-mark{
      width:42px;
      height:42px;
      border-radius:14px;
      display:grid;
      place-items:center;
      font-weight:800;
      letter-spacing:.03em;
      color:#052114;
      background:linear-gradient(145deg, var(--accent) 0%, #87f0bf 100%);
      box-shadow:0 12px 26px rgba(63,227,154,.22);
    }
    .brand-text{
      display:flex;
      flex-direction:column;
      min-width:0;
    }
    .brand-text strong{
      display:block;
      font-size:1.02rem;
      line-height:1.2;
      letter-spacing:.01em;
      white-space:nowrap;
      overflow:hidden;
      text-overflow:ellipsis;
    }
    .brand-text small{
      color:var(--muted);
      font-size:.82rem;
      white-space:nowrap;
      overflow:hidden;
      text-overflow:ellipsis;
    }
    .nav{
      display:flex;
      align-items:center;
      gap:10px;
      margin-left:auto;
      flex-wrap:wrap;
    }
    .nav-link{
      padding:10px 14px;
      border-radius:999px;
      color:var(--soft);
      border:1px solid transparent;
      transition:transform var(--speed), background var(--speed), border-color var(--speed), color var(--speed);
      font-size:.95rem;
      line-height:1.2;
    }
    .nav-link:hover{
      background:rgba(255,255,255,.04);
      border-color:var(--line);
      transform:translateY(-1px);
      color:#fff;
    }
    .nav-link.active{
      background:rgba(63,227,154,.1);
      color:#c8ffe6;
      border-color:rgba(63,227,154,.22);
      box-shadow:inset 0 1px 0 rgba(255,255,255,.04);
    }
    .top-search{
      display:flex;
      align-items:center;
      gap:0;
      flex:0 0 320px;
      margin-left:6px;
      background:rgba(255,255,255,.04);
      border:1px solid var(--line);
      border-radius:999px;
      overflow:hidden;
      box-shadow:inset 0 1px 0 rgba(255,255,255,.03);
    }
    .top-search input{
      width:100%;
      border:0;
      background:transparent;
      color:var(--text);
      padding:11px 16px;
      min-width:0;
      outline:none;
    }
    .top-search input::placeholder{color:#799087}
    .top-search button{
      border:0;
      padding:11px 16px;
      color:#071411;
      font-weight:700;
      background:linear-gradient(145deg, var(--accent) 0%, #86eec0 100%);
      cursor:pointer;
      transition:transform var(--speed), filter var(--speed);
      white-space:nowrap;
    }
    .top-search button:hover{filter:brightness(1.02);transform:translateY(-1px)}
    .top-search button:active{transform:translateY(0)}

    main{position:relative;z-index:1}
    .breadcrumb-row{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:16px;
      padding:20px 0 0;
    }
    .breadcrumb{
      display:flex;
      align-items:center;
      flex-wrap:wrap;
      gap:8px;
      font-size:.92rem;
      color:var(--muted);
    }
    .breadcrumb a{
      color:#d8ece4;
      transition:color var(--speed);
    }
    .breadcrumb a:hover{color:var(--accent)}
    .breadcrumb span{color:var(--muted)}
    .page-pill{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:8px 12px;
      border-radius:999px;
      color:#dffbe9;
      background:rgba(63,227,154,.08);
      border:1px solid rgba(63,227,154,.18);
      font-size:.86rem;
      white-space:nowrap;
    }

    .hero-section{
      padding:18px 0 10px;
    }
    .hero-shell{
      border:1px solid var(--line);
      border-radius:28px;
      overflow:hidden;
      position:relative;
      background:
        linear-gradient(180deg, rgba(6,10,8,.18), rgba(6,10,8,.7)),
        url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
      box-shadow:var(--shadow);
    }
    .hero-shell::after{
      content:"";
      position:absolute;
      inset:0;
      background:
        linear-gradient(135deg, rgba(8,17,14,.88) 0%, rgba(8,17,14,.76) 54%, rgba(8,17,14,.46) 100%);
    }
    .hero-grid{
      position:relative;
      z-index:1;
      display:grid;
      grid-template-columns: 1.2fr .8fr;
      gap:24px;
      padding:34px;
      min-height: 520px;
      align-items:stretch;
    }
    .hero-copy{
      display:flex;
      flex-direction:column;
      justify-content:center;
      gap:18px;
      max-width:760px;
    }
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:10px;
      width:max-content;
      padding:8px 12px;
      border-radius:999px;
      background:rgba(63,227,154,.1);
      border:1px solid rgba(63,227,154,.18);
      color:#dffbe9;
      font-size:.88rem;
      letter-spacing:.02em;
    }
    .hero-copy h1{
      margin:0;
      font-size:clamp(2rem, 4vw, 4rem);
      line-height:1.1;
      letter-spacing:-.03em;
      max-width:14em;
    }
    .hero-copy p{
      margin:0;
      color:#d1ded8;
      font-size:1.05rem;
      max-width:58ch;
    }
    .hero-meta{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
    }
    .meta-tag{
      display:inline-flex;
      align-items:center;
      gap:6px;
      padding:8px 12px;
      border-radius:999px;
      background:rgba(255,255,255,.04);
      border:1px solid var(--line);
      color:#e9f5ef;
      font-size:.88rem;
    }
    .hero-actions{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      align-items:center;
      padding-top:4px;
    }
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      border-radius:999px;
      padding:12px 18px;
      border:1px solid transparent;
      transition:transform var(--speed), background var(--speed), border-color var(--speed), color var(--speed), box-shadow var(--speed), filter var(--speed);
      font-weight:700;
      cursor:pointer;
      line-height:1;
      white-space:nowrap;
    }
    .btn:hover{transform:translateY(-1px)}
    .btn:active{transform:translateY(0)}
    .btn-primary{
      color:#051611;
      background:linear-gradient(145deg, var(--accent) 0%, #94f6cb 100%);
      box-shadow:0 14px 28px rgba(63,227,154,.16);
    }
    .btn-primary:hover{filter:brightness(1.03)}
    .btn-ghost{
      color:#eaf5ef;
      background:rgba(255,255,255,.03);
      border-color:var(--line);
    }
    .btn-ghost:hover{
      background:rgba(255,255,255,.06);
      border-color:rgba(255,255,255,.16);
    }
    .hero-panel{
      display:flex;
      flex-direction:column;
      gap:16px;
      justify-content:center;
      padding-left:6px;
    }
    .hero-visual{
      position:relative;
      margin:0;
      border-radius:24px;
      overflow:hidden;
      min-height:280px;
      background:var(--panel);
      border:1px solid var(--line);
      box-shadow:var(--shadow-soft);
    }
    .hero-visual img{
      width:100%;
      height:100%;
      min-height:280px;
      object-fit:cover;
      filter:saturate(1.02) contrast(1.02);
    }
    .hero-visual::after{
      content:"";
      position:absolute;
      inset:0;
      background:linear-gradient(180deg, rgba(4,8,6,.06), rgba(4,8,6,.76));
    }
    .hero-visual figcaption{
      position:absolute;
      left:18px;
      right:18px;
      bottom:16px;
      z-index:1;
      display:flex;
      align-items:flex-end;
      justify-content:space-between;
      gap:16px;
      color:#f2faf5;
      font-size:.94rem;
    }
    .hero-caption-main{
      display:flex;
      flex-direction:column;
      gap:4px;
    }
    .hero-caption-main strong{font-size:1.02rem}
    .hero-caption-main span{color:#bfd1c8;font-size:.86rem}
    .hero-caption-badge{
      padding:8px 12px;
      border-radius:999px;
      background:rgba(8,16,13,.72);
      border:1px solid rgba(255,255,255,.12);
      color:#dffbe9;
      backdrop-filter:blur(4px);
      white-space:nowrap;
    }
    .hero-mini-grid{
      display:grid;
      grid-template-columns:repeat(2, minmax(0, 1fr));
      gap:12px;
    }
    .mini-stat{
      padding:14px 14px 12px;
      border-radius:20px;
      background:rgba(255,255,255,.04);
      border:1px solid var(--line);
      box-shadow:var(--shadow-soft);
      min-height:116px;
      display:flex;
      flex-direction:column;
      justify-content:space-between;
      gap:8px;
    }
    .mini-stat span{
      color:var(--muted);
      font-size:.86rem;
    }
    .mini-stat strong{
      font-size:1.7rem;
      line-height:1;
      letter-spacing:-.03em;
    }
    .mini-stat small{
      color:#c7d5cf;
      font-size:.86rem;
    }

    .section{
      padding:20px 0;
    }
    .section-head{
      display:flex;
      align-items:flex-end;
      justify-content:space-between;
      gap:16px;
      margin-bottom:16px;
    }
    .section-kicker{
      display:inline-flex;
      align-items:center;
      gap:8px;
      margin-bottom:10px;
      color:#a9bcb4;
      font-size:.86rem;
      letter-spacing:.08em;
      text-transform:uppercase;
    }
    .section-title{
      margin:0;
      font-size:clamp(1.35rem, 2vw, 2rem);
      line-height:1.2;
      letter-spacing:-.02em;
    }
    .section-note{
      margin:6px 0 0;
      color:var(--muted);
      max-width:70ch;
      font-size:.96rem;
    }
    .section-tools{
      display:flex;
      gap:10px;
      align-items:center;
      flex-wrap:wrap;
      justify-content:flex-end;
    }
    .link-inline{
      color:#dffbe9;
      font-weight:700;
      font-size:.94rem;
      transition:color var(--speed);
    }
    .link-inline:hover{color:var(--accent)}
    .overview-grid{
      display:grid;
      grid-template-columns:repeat(4, minmax(0, 1fr));
      gap:14px;
    }
    .overview-card{
      border-radius:22px;
      background:linear-gradient(180deg, rgba(255,255,255,.04), rgba(255,255,255,.025));
      border:1px solid var(--line);
      padding:18px;
      box-shadow:var(--shadow-soft);
      display:flex;
      flex-direction:column;
      gap:10px;
      min-height:132px;
      transition:transform var(--speed), border-color var(--speed), background var(--speed);
    }
    .overview-card:hover{
      transform:translateY(-2px);
      border-color:rgba(63,227,154,.18);
      background:linear-gradient(180deg, rgba(63,227,154,.08), rgba(255,255,255,.03));
    }
    .overview-label{
      display:flex;
      align-items:center;
      gap:8px;
      color:#cfe0d8;
      font-size:.9rem;
    }
    .overview-value{
      font-size:1.55rem;
      line-height:1.1;
      letter-spacing:-.03em;
      font-weight:800;
    }
    .overview-desc{
      color:var(--muted);
      font-size:.9rem;
    }

    .chips-bar{
      display:flex;
      gap:10px;
      flex-wrap:wrap;
      margin:18px 0 0;
    }
    .chip{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:9px 14px;
      border-radius:999px;
      border:1px solid var(--line);
      background:rgba(255,255,255,.03);
      color:#dce7e1;
      transition:transform var(--speed), background var(--speed), border-color var(--speed), color var(--speed);
      font-size:.92rem;
    }
    .chip:hover{
      transform:translateY(-1px);
      background:rgba(63,227,154,.08);
      border-color:rgba(63,227,154,.2);
      color:#f1fff8;
    }
    .chip.active{
      background:rgba(63,227,154,.12);
      border-color:rgba(63,227,154,.24);
      color:#eafff4;
      box-shadow:inset 0 1px 0 rgba(255,255,255,.04);
    }

    .content-layout{
      display:grid;
      grid-template-columns:minmax(0, 1.7fr) minmax(300px, .95fr);
      gap:22px;
      align-items:start;
      padding:22px 0;
    }
    .feed-column,
    .side-column{
      display:flex;
      flex-direction:column;
      gap:16px;
      min-width:0;
    }
    .featured-card,
    .story-card,
    .side-card,
    .matrix-card,
    .faq-card,
    .cta-card{
      border-radius:24px;
      border:1px solid var(--line);
      background:linear-gradient(180deg, rgba(255,255,255,.045), rgba(255,255,255,.025));
      box-shadow:var(--shadow-soft);
      overflow:hidden;
    }
    .featured-card{
      display:grid;
      grid-template-columns: 1.08fr .92fr;
      min-height: 320px;
    }
    .featured-media{
      position:relative;
      min-height:320px;
      background:#101715;
    }
    .featured-media img{
      width:100%;
      height:100%;
      object-fit:cover;
    }
    .featured-media::after{
      content:"";
      position:absolute;
      inset:0;
      background:linear-gradient(180deg, rgba(5,8,7,.06), rgba(5,8,7,.82));
    }
    .featured-content{
      padding:24px;
      display:flex;
      flex-direction:column;
      justify-content:space-between;
      gap:16px;
    }
    .label-row{
      display:flex;
      align-items:center;
      gap:10px;
      flex-wrap:wrap;
    }
    .label{
      display:inline-flex;
      align-items:center;
      gap:6px;
      padding:7px 10px;
      border-radius:999px;
      font-size:.82rem;
      color:#def9eb;
      background:rgba(63,227,154,.1);
      border:1px solid rgba(63,227,154,.18);
    }
    .label.orange{
      background:rgba(240,169,79,.1);
      border-color:rgba(240,169,79,.2);
      color:#ffe1b4;
    }
    .featured-title{
      margin:0;
      font-size:clamp(1.45rem, 2.1vw, 2.2rem);
      line-height:1.18;
      letter-spacing:-.02em;
    }
    .featured-summary{
      margin:0;
      color:#ccd9d3;
      max-width:56ch;
      font-size:.98rem;
    }
    .featured-meta{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      color:var(--muted);
      font-size:.9rem;
    }
    .meta-dot::before{
      content:"";
      display:inline-block;
      width:5px;
      height:5px;
      border-radius:999px;
      background:rgba(255,255,255,.3);
      margin-right:10px;
      vertical-align:middle;
    }
    .story-grid{
      display:grid;
      grid-template-columns:repeat(2, minmax(0, 1fr));
      gap:16px;
    }
    .story-card{
      display:flex;
      flex-direction:column;
      overflow:hidden;
      min-height:100%;
      transition:transform var(--speed), border-color var(--speed);
    }
    .story-card:hover{
      transform:translateY(-2px);
      border-color:rgba(63,227,154,.18);
    }
    .story-thumb{
      position:relative;
      aspect-ratio: 16/10;
      background:#101715;
      overflow:hidden;
    }
    .story-thumb img{
      width:100%;
      height:100%;
      object-fit:cover;
      transition:transform .5s ease, filter .5s ease;
    }
    .story-card:hover .story-thumb img{
      transform:scale(1.03);
      filter:saturate(1.08);
    }
    .story-thumb::after{
      content:"";
      position:absolute;
      inset:0;
      background:linear-gradient(180deg, rgba(7,11,9,.02), rgba(7,11,9,.58));
    }
    .story-body{
      padding:16px 16px 18px;
      display:flex;
      flex-direction:column;
      gap:10px;
    }
    .story-title{
      margin:0;
      font-size:1.05rem;
      line-height:1.35;
      letter-spacing:-.01em;
    }
    .story-text{
      margin:0;
      color:var(--muted);
      font-size:.92rem;
      line-height:1.65;
    }
    .story-foot{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      color:#ced9d4;
      font-size:.84rem;
      padding-top:2px;
    }
    .tag-list{
      display:flex;
      flex-wrap:wrap;
      gap:8px;
    }
    .tag{
      display:inline-flex;
      align-items:center;
      gap:6px;
      padding:7px 10px;
      border-radius:999px;
      background:rgba(255,255,255,.04);
      border:1px solid var(--line);
      color:#e2eee8;
      font-size:.85rem;
    }
    .pagination{
      display:flex;
      align-items:center;
      justify-content:center;
      gap:10px;
      padding-top:8px;
      flex-wrap:wrap;
    }
    .page-link{
      min-width:42px;
      height:42px;
      border-radius:12px;
      display:grid;
      place-items:center;
      border:1px solid var(--line);
      color:#e1ece7;
      background:rgba(255,255,255,.03);
      transition:transform var(--speed), background var(--speed), border-color var(--speed);
      padding:0 12px;
      font-size:.94rem;
    }
    .page-link:hover{
      transform:translateY(-1px);
      background:rgba(63,227,154,.08);
      border-color:rgba(63,227,154,.18);
    }
    .page-link.active{
      background:rgba(63,227,154,.12);
      border-color:rgba(63,227,154,.24);
      color:#f7fffb;
      font-weight:700;
    }

    .side-card{
      padding:18px;
    }
    .side-card h3{
      margin:0 0 12px;
      font-size:1.03rem;
      line-height:1.3;
      letter-spacing:-.01em;
    }
    .side-card p{
      margin:0;
      color:var(--muted);
      font-size:.93rem;
    }
    .side-cover{
      position:relative;
      border-radius:18px;
      overflow:hidden;
      margin-bottom:14px;
      min-height:180px;
      border:1px solid var(--line);
    }
    .side-cover img{
      width:100%;
      height:100%;
      min-height:180px;
      object-fit:cover;
    }
    .side-cover::after{
      content:"";
      position:absolute;
      inset:0;
      background:linear-gradient(180deg, rgba(8,12,10,.04), rgba(8,12,10,.72));
    }
    .side-cover span{
      position:absolute;
      left:14px;
      bottom:12px;
      z-index:1;
      color:#f3faf6;
      font-size:.92rem;
      font-weight:700;
    }
    .bullet-list{
      margin:0;
      padding:0;
      list-style:none;
      display:grid;
      gap:12px;
    }
    .bullet-list li{
      display:flex;
      gap:10px;
      align-items:flex-start;
      color:#dbe6e1;
      font-size:.92rem;
    }
    .bullet-list li::before{
      content:"";
      flex:0 0 auto;
      width:8px;
      height:8px;
      border-radius:999px;
      margin-top:.55em;
      background:linear-gradient(145deg, var(--accent), var(--warm));
      box-shadow:0 0 0 4px rgba(63,227,154,.08);
    }
    .quick-links{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin-top:6px;
    }
    .keyword-cloud{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
    }
    .keyword-cloud .tag{
      background:rgba(63,227,154,.07);
      border-color:rgba(63,227,154,.16);
      color:#ddffee;
    }
    .timeline{
      display:grid;
      gap:12px;
      margin-top:4px;
    }
    .timeline-item{
      display:grid;
      grid-template-columns:56px minmax(0, 1fr);
      gap:12px;
      align-items:start;
      padding:10px 0;
      border-top:1px dashed rgba(255,255,255,.08);
    }
    .timeline-item:first-child{border-top:0;padding-top:0}
    .timeline-time{
      color:#8fb5a4;
      font-size:.84rem;
      white-space:nowrap;
    }
    .timeline-body strong{
      display:block;
      margin-bottom:4px;
      font-size:.95rem;
    }
    .timeline-body span{
      color:var(--muted);
      font-size:.88rem;
    }

    .matrix-section{
      padding:10px 0 22px;
    }
    .matrix-grid{
      display:grid;
      grid-template-columns:repeat(4, minmax(0, 1fr));
      gap:14px;
    }
    .matrix-card{
      padding:18px;
      display:flex;
      flex-direction:column;
      gap:12px;
      min-height:186px;
      transition:transform var(--speed), border-color var(--speed), background var(--speed);
    }
    .matrix-card:hover{
      transform:translateY(-2px);
      border-color:rgba(63,227,154,.18);
      background:linear-gradient(180deg, rgba(63,227,154,.08), rgba(255,255,255,.03));
    }
    .matrix-head{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:10px;
    }
    .matrix-card h3{
      margin:0;
      font-size:1.02rem;
      line-height:1.35;
    }
    .matrix-card p{
      margin:0;
      color:var(--muted);
      font-size:.92rem;
      line-height:1.65;
    }
    .matrix-card .btn{
      width:100%;
      margin-top:auto;
    }

    .faq-section{
      padding:12px 0 20px;
    }
    .faq-grid{
      display:grid;
      grid-template-columns:repeat(2, minmax(0, 1fr));
      gap:14px;
    }
    .faq-card{
      padding:8px 18px;
    }
    details{
      border-bottom:1px solid rgba(255,255,255,.07);
      padding:14px 0;
    }
    details:last-child{border-bottom:0}
    summary{
      cursor:pointer;
      list-style:none;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      font-weight:700;
      line-height:1.45;
    }
    summary::-webkit-details-marker{display:none}
    summary::after{
      content:"+";
      flex:0 0 auto;
      width:28px;
      height:28px;
      display:grid;
      place-items:center;
      border-radius:999px;
      background:rgba(255,255,255,.04);
      border:1px solid var(--line);
      color:#edf8f2;
      transition:transform var(--speed), background var(--speed);
    }
    details[open] summary::after{
      content:"–";
      background:rgba(63,227,154,.1);
      border-color:rgba(63,227,154,.18);
    }
    details p{
      margin:12px 0 0;
      color:var(--muted);
      font-size:.93rem;
      line-height:1.75;
      max-width:72ch;
    }

    .cta-section{
      padding:16px 0 34px;
    }
    .cta-card{
      position:relative;
      overflow:hidden;
      background:
        linear-gradient(135deg, rgba(6,13,11,.88) 0%, rgba(8,17,14,.78) 44%, rgba(8,17,14,.92) 100%),
        url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
      min-height:240px;
    }
    .cta-card::after{
      content:"";
      position:absolute;
      inset:0;
      background:
        radial-gradient(circle at 15% 30%, rgba(63,227,154,.16), transparent 24%),
        radial-gradient(circle at 82% 18%, rgba(240,169,79,.12), transparent 20%);
      pointer-events:none;
    }
    .cta-inner{
      position:relative;
      z-index:1;
      padding:28px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:20px;
      flex-wrap:wrap;
    }
    .cta-copy{
      max-width:780px;
    }
    .cta-copy h2{
      margin:0 0 10px;
      font-size:clamp(1.45rem, 2.4vw, 2.3rem);
      line-height:1.18;
    }
    .cta-copy p{
      margin:0;
      color:#d5e2dc;
      max-width:70ch;
      font-size:.98rem;
    }
    .cta-actions{
      display:flex;
      align-items:center;
      gap:12px;
      flex-wrap:wrap;
    }

    .site-footer{
      border-top:1px solid var(--line);
      background:#07100d;
      position:relative;
      z-index:1;
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.2fr .8fr .8fr;
      gap:24px;
      padding:28px 0 18px;
    }
    .footer-brand strong{
      display:block;
      margin-bottom:10px;
      font-size:1.06rem;
      letter-spacing:.01em;
    }
    .footer-brand p{
      margin:0;
      color:var(--muted);
      max-width:42ch;
      font-size:.94rem;
      line-height:1.8;
    }
    .footer-col h3{
      margin:0 0 14px;
      font-size:.98rem;
      color:#eff7f2;
    }
    .footer-links{
      display:flex;
      flex-wrap:wrap;
      gap:10px 14px;
    }
    .footer-links a{
      color:#cfddd7;
      transition:color var(--speed), transform var(--speed);
      font-size:.92rem;
    }
    .footer-links a:hover{
      color:var(--accent);
      transform:translateX(2px);
    }
    .footer-meta{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      flex-wrap:wrap;
      padding:14px 0 24px;
      border-top:1px solid var(--line);
      color:#8ea196;
      font-size:.88rem;
    }

    @media (max-width: 1200px){
      .hero-grid{
        grid-template-columns:1fr .88fr;
      }
      .overview-grid,
      .matrix-grid{
        grid-template-columns:repeat(2, minmax(0, 1fr));
      }
      .content-layout{
        grid-template-columns:1.45fr .95fr;
      }
    }
    @media (max-width: 1024px){
      .header-inner{
        flex-wrap:wrap;
      }
      .nav{
        margin-left:0;
        order:3;
        width:100%;
      }
      .top-search{
        flex:1 1 100%;
        margin-left:0;
        order:4;
      }
      .hero-grid{
        grid-template-columns:1fr;
        min-height:auto;
      }
      .hero-panel{
        padding-left:0;
      }
      .content-layout{
        grid-template-columns:1fr;
      }
      .faq-grid{
        grid-template-columns:1fr;
      }
      .footer-grid{
        grid-template-columns:1fr;
      }
    }
    @media (max-width: 768px){
      .container{
        width:min(var(--container), calc(100% - 24px));
      }
      .breadcrumb-row{
        flex-direction:column;
        align-items:flex-start;
      }
      .hero-shell{
        border-radius:24px;
      }
      .hero-grid{
        padding:22px;
      }
      .hero-copy h1{
        max-width:unset;
      }
      .hero-mini-grid{
        grid-template-columns:1fr;
      }
      .overview-grid,
      .story-grid,
      .matrix-grid{
        grid-template-columns:1fr;
      }
      .featured-card{
        grid-template-columns:1fr;
      }
      .featured-media{
        min-height:240px;
      }
      .section-head{
        flex-direction:column;
        align-items:flex-start;
      }
      .section-tools{
        width:100%;
        justify-content:flex-start;
      }
      .cta-inner{
        padding:22px;
      }
    }
    @media (max-width: 520px){
      .header-inner{
        gap:12px;
      }
      .brand-mark{
        width:38px;
        height:38px;
        border-radius:12px;
      }
      .brand-text strong{
        font-size:.98rem;
      }
      .brand-text small{
        font-size:.78rem;
      }
      .nav{
        gap:8px;
      }
      .nav-link{
        padding:9px 12px;
        font-size:.9rem;
      }
      .top-search{
        border-radius:16px;
        flex-direction:column;
      }
      .top-search button,
      .top-search input{
        width:100%;
        border-radius:0;
      }
      .top-search button{
        border-top:1px solid var(--line);
      }
      .hero-copy p,
      .section-note,
      .story-text,
      .featured-summary,
      .cta-copy p{
        font-size:.95rem;
      }
      .hero-actions,
      .cta-actions{
        width:100%;
      }
      .btn{
        width:100%;
      }
      .pagination{
        justify-content:flex-start;
      }
      .page-link{
        min-width:40px;
      }
      .footer-meta{
        align-items:flex-start;
      }
    }