/* roulang page: index */
:root{
      --bg:#0E0B16;
      --bg-soft:#121018;
      --panel:#1D1727;
      --panel-2:#211A2E;
      --line:rgba(255,255,255,.12);
      --line-strong:rgba(255,255,255,.18);
      --text:#F8FAFC;
      --muted:#CBD5E1;
      --weak:#94A3B8;
      --primary:#8B5CF6;
      --primary-2:#A855F7;
      --accent:#22D3EE;
      --mint:#2DD4BF;
      --hot:#F97316;
      --danger:#F43F5E;
      --radius:22px;
      --radius-sm:14px;
      --shadow:0 18px 60px rgba(0,0,0,.32);
      --shadow-soft:0 12px 32px rgba(0,0,0,.22);
      --max:1240px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;
      color:var(--text);
      background:
        radial-gradient(circle at 12% 8%, rgba(139,92,246,.22), transparent 34%),
        radial-gradient(circle at 86% 18%, rgba(34,211,238,.16), transparent 30%),
        radial-gradient(circle at 50% 78%, rgba(168,85,247,.14), transparent 34%),
        linear-gradient(180deg,#0E0B16 0%,#121018 46%,#0B0911 100%);
      line-height:1.75;
      overflow-x:hidden;
    }
    body:before{
      content:"";
      position:fixed;
      inset:0;
      pointer-events:none;
      opacity:.32;
      background-image:
        linear-gradient(rgba(255,255,255,.045) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,.045) 1px, transparent 1px);
      background-size:36px 36px;
      mask-image:linear-gradient(to bottom, rgba(0,0,0,.9), transparent 82%);
      z-index:-1;
    }
    a{color:inherit;text-decoration:none}
    a:hover{text-decoration:none}
    button,input{font:inherit}
    button{cursor:pointer}
    img,svg{max-width:100%;display:block}
    .site-container{width:min(var(--max), calc(100% - 32px));margin-inline:auto}
    .skip-link{
      position:absolute;left:16px;top:-80px;background:var(--accent);color:#071018;
      padding:10px 14px;border-radius:12px;font-weight:800;z-index:80;transition:.2s ease;
    }
    .skip-link:focus{top:12px}
    .topbar{
      position:sticky;top:0;z-index:60;
      background:rgba(14,11,22,.84);
      backdrop-filter:blur(14px);
      border-bottom:1px solid var(--line);
    }
    .nav-shell{
      height:74px;display:flex;align-items:center;justify-content:space-between;gap:18px;
    }
    .brand{
      display:flex;align-items:center;gap:12px;min-width:0;font-weight:900;letter-spacing:-.02em;
    }
    .brand-mark{
      width:42px;height:42px;border-radius:14px;
      background:linear-gradient(135deg,var(--primary),var(--accent));
      display:grid;place-items:center;box-shadow:0 10px 30px rgba(139,92,246,.3);
      position:relative;overflow:hidden;flex:0 0 auto;
    }
    .brand-mark:before{
      content:"";width:0;height:0;border-top:9px solid transparent;border-bottom:9px solid transparent;border-left:14px solid white;margin-left:3px;
      filter:drop-shadow(0 3px 8px rgba(0,0,0,.25));
    }
    .brand-mark:after{
      content:"";position:absolute;inset:6px;border:1px solid rgba(255,255,255,.35);border-radius:10px;
    }
    .brand-text{font-size:18px;white-space:nowrap}
    .nav-links{display:flex;align-items:center;gap:8px}
    .nav-link{
      min-height:42px;display:inline-flex;align-items:center;border-radius:999px;padding:0 15px;
      color:var(--muted);font-size:14px;font-weight:700;border:1px solid transparent;transition:.2s ease;
    }
    .nav-link:hover,.nav-link:focus-visible{
      color:#fff;border-color:rgba(34,211,238,.34);background:rgba(34,211,238,.08);outline:none;
    }
    .nav-link.active{
      color:#fff;background:rgba(139,92,246,.2);border-color:rgba(139,92,246,.45);
      box-shadow:inset 0 0 0 1px rgba(255,255,255,.04);
    }
    .nav-cta{
      min-height:42px;display:inline-flex;align-items:center;justify-content:center;border-radius:999px;
      padding:0 18px;background:linear-gradient(135deg,var(--primary),var(--accent));color:white;font-weight:900;
      box-shadow:0 14px 34px rgba(139,92,246,.22);transition:.22s ease;
    }
    .nav-cta:hover,.nav-cta:focus-visible{transform:translateY(-2px);filter:brightness(1.08);outline:none}
    .menu-btn{
      display:none;width:44px;height:44px;border-radius:14px;border:1px solid var(--line);
      background:rgba(255,255,255,.06);color:white;align-items:center;justify-content:center;
    }
    .menu-btn:focus-visible{outline:3px solid rgba(34,211,238,.45);outline-offset:2px}
    .mobile-panel{display:none;border-top:1px solid var(--line);padding:12px 0 18px}
    .btn{
      min-height:48px;display:inline-flex;align-items:center;justify-content:center;gap:10px;padding:0 20px;
      border-radius:15px;font-weight:900;border:1px solid transparent;transition:.22s ease;white-space:nowrap;
    }
    .btn-primary{background:linear-gradient(135deg,var(--primary),var(--accent));color:#fff;box-shadow:0 18px 46px rgba(139,92,246,.28)}
    .btn-primary:hover,.btn-primary:focus-visible{transform:translateY(-3px);filter:brightness(1.08);outline:none}
    .btn-secondary{background:rgba(255,255,255,.06);border-color:var(--line);color:var(--text)}
    .btn-secondary:hover,.btn-secondary:focus-visible{border-color:rgba(34,211,238,.45);background:rgba(34,211,238,.09);transform:translateY(-2px);outline:none}
    .btn-soft{background:rgba(139,92,246,.15);border-color:rgba(139,92,246,.34);color:#fff}
    .btn-soft:hover,.btn-soft:focus-visible{background:rgba(139,92,246,.25);border-color:rgba(34,211,238,.45);outline:none}
    .badge{
      display:inline-flex;align-items:center;gap:7px;border:1px solid var(--line);
      background:rgba(255,255,255,.055);color:var(--muted);border-radius:999px;
      padding:7px 11px;font-size:13px;font-weight:800;
    }
    .badge:before{content:"";width:7px;height:7px;border-radius:999px;background:var(--accent);box-shadow:0 0 16px rgba(34,211,238,.8)}
    .section{padding:84px 0;position:relative}
    .section.band{background:linear-gradient(180deg,rgba(255,255,255,.035),rgba(255,255,255,.015));border-block:1px solid var(--line)}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:22px;margin-bottom:28px}
    .section-kicker{color:var(--accent);font-weight:900;font-size:14px;margin-bottom:8px}
    .section-title{font-size:clamp(26px,4vw,42px);line-height:1.18;font-weight:900;letter-spacing:-.035em}
    .section-desc{color:var(--muted);font-size:16px;max-width:720px;margin-top:12px;line-height:1.85}
    .hero{
      padding:78px 0 74px;position:relative;overflow:hidden;
    }
    .hero:after{
      content:"";position:absolute;right:-8%;top:42px;width:58%;height:78%;
      background:linear-gradient(135deg,rgba(139,92,246,.18),rgba(34,211,238,.08));
      clip-path:polygon(16% 0,100% 0,84% 100%,0 100%);
      border-left:1px solid rgba(255,255,255,.08);z-index:-1;
    }
    .hero-stage{
      display:grid;grid-template-columns:minmax(0,1.05fr) minmax(360px,.95fr);gap:30px;align-items:stretch;
    }
    .hero-copy{
      padding:34px 0 22px;
    }
    .hero h1{
      font-size:clamp(34px,6vw,64px);line-height:1.08;font-weight:950;letter-spacing:-.055em;
      max-width:860px;
    }
    .hero h1 span{background:linear-gradient(135deg,#fff 10%,#B794F4 46%,#67E8F9 92%);-webkit-background-clip:text;background-clip:text;color:transparent}
    .hero-intro{margin-top:22px;color:var(--muted);font-size:17px;line-height:1.9;max-width:760px}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
    .hero-points{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-top:28px;max-width:780px}
    .point{
      border:1px solid var(--line);background:rgba(255,255,255,.045);border-radius:18px;padding:14px;
    }
    .point strong{display:block;font-size:20px;line-height:1.1}
    .point span{display:block;color:var(--weak);font-size:13px;margin-top:5px}
    .plan-rack{
      position:relative;border:1px solid var(--line-strong);background:linear-gradient(180deg,rgba(33,26,46,.95),rgba(29,23,39,.82));
      border-radius:30px;padding:18px;box-shadow:var(--shadow);overflow:hidden;
    }
    .plan-rack:before{
      content:"";position:absolute;inset:-1px;background:radial-gradient(circle at 70% 12%,rgba(34,211,238,.22),transparent 28%),radial-gradient(circle at 20% 80%,rgba(139,92,246,.28),transparent 34%);pointer-events:none;
    }
    .plan-rack > *{position:relative}
    .rack-top{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:14px}
    .status-pill{font-size:13px;color:#071018;background:linear-gradient(135deg,var(--accent),var(--mint));font-weight:950;border-radius:999px;padding:8px 11px}
    .rack-list{display:grid;gap:12px}
    .choice-card{
      border:1px solid var(--line);background:rgba(14,11,22,.54);border-radius:20px;padding:16px;
      transition:.22s ease;
    }
    .choice-card:hover{transform:translateY(-3px);border-color:rgba(34,211,238,.38)}
    .choice-card.reco{
      background:linear-gradient(135deg,rgba(139,92,246,.24),rgba(34,211,238,.10));
      border-color:rgba(139,92,246,.62);box-shadow:0 16px 42px rgba(139,92,246,.2);
    }
    .choice-title{display:flex;align-items:center;justify-content:space-between;gap:10px;font-weight:900}
    .choice-title b{font-size:18px}
    .mini-tag{font-size:12px;color:#fff;border-radius:999px;background:rgba(249,115,22,.92);padding:4px 8px;font-weight:900}
    .choice-card p{color:var(--muted);font-size:14px;margin-top:8px;line-height:1.75}
    .choice-meta{display:flex;flex-wrap:wrap;gap:7px;margin-top:12px}
    .choice-meta span{font-size:12px;color:var(--weak);border:1px solid var(--line);border-radius:999px;padding:4px 8px;background:rgba(255,255,255,.045)}
    .quick-filter{
      margin-top:20px;display:flex;gap:10px;overflow:auto;padding-bottom:4px;scrollbar-width:thin;
    }
    .quick-filter a{
      flex:0 0 auto;border:1px solid var(--line);background:rgba(255,255,255,.055);border-radius:999px;
      padding:9px 13px;color:var(--muted);font-weight:800;font-size:13px;transition:.2s ease;
    }
    .quick-filter a:hover,.quick-filter a:focus-visible{color:white;border-color:rgba(34,211,238,.5);background:rgba(34,211,238,.08);outline:none}
    .compare-wrap{overflow:auto;border-radius:24px;border:1px solid var(--line);box-shadow:var(--shadow-soft)}
    .compare-table{width:100%;border-collapse:separate;border-spacing:0;background:rgba(29,23,39,.82);min-width:760px}
    .compare-table th,.compare-table td{padding:18px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
    .compare-table th{font-size:14px;color:#fff;background:rgba(255,255,255,.055)}
    .compare-table td{color:var(--muted);font-size:15px}
    .compare-table tr:last-child td{border-bottom:0}
    .compare-table .yes{color:var(--mint);font-weight:900}
    .compare-table .mid{color:#FDE68A;font-weight:900}
    .compare-table .feature-name{color:#fff;font-weight:900}
    .recommended-grid{display:grid;grid-template-columns:1fr 1.22fr 1fr;gap:18px;align-items:stretch}
    .pricing-card{
      border:1px solid var(--line);background:rgba(29,23,39,.74);border-radius:24px;padding:22px;box-shadow:var(--shadow-soft);
      transition:.22s ease;position:relative;overflow:hidden;
    }
    .pricing-card:hover{transform:translateY(-4px);border-color:rgba(34,211,238,.34)}
    .pricing-card.highlight{border-color:rgba(139,92,246,.68);background:linear-gradient(180deg,rgba(139,92,246,.2),rgba(29,23,39,.86));box-shadow:var(--glow)}
    .corner{
      position:absolute;right:16px;top:16px;border-radius:999px;padding:5px 9px;font-size:12px;font-weight:950;
      color:#071018;background:linear-gradient(135deg,var(--accent),var(--mint));
    }
    .price-name{font-size:21px;font-weight:950}
    .price-note{color:var(--weak);font-size:14px;margin-top:6px}
    .price-line{margin:18px 0;color:#fff;font-weight:950;font-size:28px}
    .price-line small{font-size:13px;color:var(--weak);font-weight:700}
    .check-list{display:grid;gap:10px;margin:18px 0 22px}
    .check-list li{list-style:none;color:var(--muted);font-size:14px;display:flex;gap:9px}
    .check-list li:before{content:"✓";color:var(--mint);font-weight:950}
    .info-layout{display:grid;grid-template-columns:minmax(0,1.45fr) 360px;gap:22px}
    .news-list{display:grid;gap:12px}
    .news-item{
      display:grid;grid-template-columns:auto 1fr auto;gap:14px;align-items:center;
      border:1px solid var(--line);background:rgba(255,255,255,.045);border-radius:18px;padding:14px;transition:.22s ease;
    }
    .news-item:hover{transform:translateX(4px);border-color:rgba(34,211,238,.36);background:rgba(34,211,238,.06)}
    .news-num{font-weight:950;color:transparent;-webkit-text-stroke:1px rgba(34,211,238,.8);font-size:22px;line-height:1}
    .news-title{font-weight:900;color:#fff}
    .news-item p{color:var(--weak);font-size:14px;margin-top:3px}
    .news-action{color:var(--accent);font-weight:900;font-size:14px}
    .rank-card,.panel-card{
      border:1px solid var(--line);background:rgba(29,23,39,.78);border-radius:24px;padding:20px;box-shadow:var(--shadow-soft);
    }
    .rank-list{display:grid;gap:13px;margin-top:16px}
    .rank-row{display:grid;grid-template-columns:36px 1fr;gap:10px;align-items:start}
    .rank-index{color:#fff;font-weight:950;background:rgba(139,92,246,.24);border:1px solid rgba(139,92,246,.35);border-radius:12px;text-align:center;padding:5px 0;font-size:13px}
    .rank-row strong{font-size:15px;color:#fff}
    .rank-row span{display:block;color:var(--weak);font-size:13px;margin-top:2px}
    .vertical-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
    .vertical-card{
      min-height:292px;border:1px solid var(--line);border-radius:26px;padding:18px;display:flex;flex-direction:column;justify-content:space-between;
      background:
        linear-gradient(180deg,rgba(255,255,255,.04),rgba(255,255,255,.02)),
        radial-gradient(circle at 50% 12%,rgba(139,92,246,.26),transparent 38%);
      transition:.22s ease;overflow:hidden;position:relative;
    }
    .vertical-card:nth-child(2){background:radial-gradient(circle at 50% 12%,rgba(34,211,238,.22),transparent 38%),rgba(255,255,255,.035)}
    .vertical-card:nth-child(3){background:radial-gradient(circle at 50% 12%,rgba(249,115,22,.18),transparent 38%),rgba(255,255,255,.035)}
    .vertical-card:nth-child(4){background:radial-gradient(circle at 50% 12%,rgba(45,212,191,.18),transparent 38%),rgba(255,255,255,.035)}
    .vertical-card:before{
      content:"";position:absolute;inset:16px 16px auto;height:120px;border-radius:20px;border:1px solid rgba(255,255,255,.1);
      background:linear-gradient(135deg,rgba(255,255,255,.12),rgba(255,255,255,.02));
    }
    .vertical-card:hover{transform:translateY(-4px);border-color:rgba(34,211,238,.38);box-shadow:var(--cyan)}
    .vertical-card .top,.vertical-card .bottom{position:relative}
    .vertical-card h3{font-size:19px;font-weight:950;margin-top:130px}
    .vertical-card p{color:var(--muted);font-size:14px;margin-top:8px}
    .steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}
    .step{
      border:1px solid var(--line);background:rgba(255,255,255,.045);border-radius:22px;padding:20px;position:relative;overflow:hidden;
    }
    .step:before{content:attr(data-step);display:inline-flex;width:38px;height:38px;border-radius:14px;align-items:center;justify-content:center;background:rgba(34,211,238,.12);border:1px solid rgba(34,211,238,.28);color:var(--accent);font-weight:950;margin-bottom:14px}
    .step h3{font-weight:950;font-size:18px}
    .step p{color:var(--muted);font-size:14px;margin-top:8px}
    .case-grid{display:grid;grid-template-columns:1.05fr 1fr;gap:20px}
    .case-main{
      border:1px solid rgba(139,92,246,.44);background:linear-gradient(135deg,rgba(139,92,246,.2),rgba(34,211,238,.08));border-radius:28px;padding:26px;box-shadow:var(--glow);
    }
    .path-list{display:grid;gap:12px}
    .path-card{
      border:1px solid var(--line);background:rgba(255,255,255,.045);border-radius:20px;padding:17px;transition:.2s ease;
    }
    .path-card:hover{border-color:rgba(34,211,238,.36);transform:translateY(-3px)}
    .progress{height:7px;border-radius:999px;background:rgba(255,255,255,.08);overflow:hidden;margin-top:12px}
    .progress span{display:block;height:100%;border-radius:inherit;background:linear-gradient(90deg,var(--primary),var(--accent))}
    .open-panel{
      border:1px solid rgba(34,211,238,.24);border-radius:30px;padding:30px;
      background:
        linear-gradient(135deg,rgba(139,92,246,.24),rgba(34,211,238,.10)),
        rgba(29,23,39,.84);
      box-shadow:var(--shadow);display:grid;grid-template-columns:1.2fr .8fr;gap:20px;align-items:center;
    }
    .open-actions{display:flex;gap:12px;justify-content:flex-end;flex-wrap:wrap}
    .faq-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
    .faq-item{
      border:1px solid var(--line);background:rgba(29,23,39,.78);border-radius:22px;padding:20px;transition:.2s ease;
    }
    .faq-item:hover{border-color:rgba(34,211,238,.34);transform:translateY(-2px)}
    .faq-item h3{font-size:17px;font-weight:950;display:flex;gap:10px;align-items:flex-start}
    .faq-item h3:before{content:"Q";flex:0 0 auto;width:28px;height:28px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;background:rgba(139,92,246,.22);color:#fff;font-size:13px}
    .faq-item p{color:var(--muted);font-size:14px;margin-top:10px;line-height:1.85}
    .footer{
      background:#09070E;border-top:1px solid var(--line);padding:46px 0 26px;
    }
    .footer-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:28px}
    .footer-title{font-weight:950;margin-bottom:12px;color:#fff}
    .footer p,.footer a{color:var(--weak);font-size:14px}
    .footer a{display:block;padding:5px 0;transition:.2s ease}
    .footer a:hover,.footer a:focus-visible{color:var(--accent);outline:none;text-decoration:underline;text-underline-offset:4px}
    .footer-bottom{margin-top:28px;padding-top:20px;border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;color:var(--weak);font-size:13px}
    .slant-divider{height:1px;background:linear-gradient(90deg,transparent,rgba(34,211,238,.4),rgba(139,92,246,.4),transparent)}
    ::selection{background:rgba(34,211,238,.28)}
    ::-webkit-scrollbar{width:10px;height:10px}
    ::-webkit-scrollbar-track{background:#0B0911}
    ::-webkit-scrollbar-thumb{background:rgba(139,92,246,.55);border-radius:999px;border:2px solid #0B0911}
    @media (max-width:1024px){
      .hero-stage,.info-layout,.case-grid,.open-panel{grid-template-columns:1fr}
      .hero:after{width:90%;right:-38%;opacity:.75}
      .recommended-grid{grid-template-columns:1fr}
      .vertical-grid,.steps{grid-template-columns:repeat(2,minmax(0,1fr))}
      .open-actions{justify-content:flex-start}
    }
    @media (max-width:768px){
      .site-container{width:min(100% - 28px,var(--max))}
      .nav-links,.nav-cta{display:none}
      .menu-btn{display:flex}
      .mobile-panel.open{display:block}
      .mobile-panel .nav-link{display:flex;width:100%;justify-content:flex-start;margin:4px 0;border-radius:14px}
      .hero{padding:50px 0 52px}
      .hero-copy{padding-top:12px}
      .hero-points{grid-template-columns:1fr}
      .section{padding:58px 0}
      .section-head{display:block}
      .faq-grid,.footer-grid{grid-template-columns:1fr}
      .news-item{grid-template-columns:auto 1fr}
      .news-action{grid-column:2}
    }
    @media (max-width:520px){
      .brand-text{font-size:16px}
      .hero h1{font-size:34px}
      .hero-actions .btn,.open-actions .btn,.pricing-card .btn{width:100%}
      .plan-rack{border-radius:24px;padding:14px}
      .vertical-grid,.steps{grid-template-columns:1fr}
      .choice-title{align-items:flex-start;flex-direction:column}
      .section-title{font-size:27px}
      .compare-table{min-width:680px}
    }

/* roulang page: category2 */
:root{
      --bg:#0E0B16;
      --bg-2:#121018;
      --panel:#1D1727;
      --panel-2:#211A2E;
      --panel-soft:rgba(255,255,255,.06);
      --text:#F8FAFC;
      --muted:#CBD5E1;
      --weak:#94A3B8;
      --border:rgba(255,255,255,.12);
      --border-2:rgba(255,255,255,.18);
      --primary:#8B5CF6;
      --primary-2:#A855F7;
      --cyan:#22D3EE;
      --teal:#2DD4BF;
      --hot:#F97316;
      --rose:#F43F5E;
      --radius:22px;
      --radius-sm:14px;
      --shadow:0 22px 70px rgba(0,0,0,.32);
      --shadow-soft:0 14px 40px rgba(139,92,246,.14);
      --container:1220px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;
      color:var(--text);
      background:
        radial-gradient(circle at 12% 8%, rgba(168,85,247,.22), transparent 32%),
        radial-gradient(circle at 88% 12%, rgba(34,211,238,.16), transparent 34%),
        radial-gradient(circle at 60% 70%, rgba(249,115,22,.08), transparent 28%),
        linear-gradient(180deg,#0E0B16 0%,#121018 52%,#0B0910 100%);
      line-height:1.75;
      overflow-x:hidden;
    }
    body:before{
      content:"";
      position:fixed;
      inset:0;
      pointer-events:none;
      z-index:-1;
      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:44px 44px;
      mask-image:linear-gradient(to bottom, rgba(0,0,0,.7), transparent 80%);
    }
    a{color:inherit;text-decoration:none}
    a,button,input{transition:all .22s ease}
    button,input{font:inherit}
    a:focus-visible,button:focus-visible,input:focus-visible{
      outline:3px solid rgba(34,211,238,.55);
      outline-offset:3px;
      border-radius:12px;
    }
    .site-container{
      width:min(var(--container), calc(100% - 32px));
      margin:0 auto;
    }
    .header{
      position:sticky;
      top:0;
      z-index:50;
      background:rgba(14,11,22,.88);
      backdrop-filter:blur(16px);
      border-bottom:1px solid var(--border);
    }
    .nav-wrap{
      min-height:76px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:22px;
    }
    .brand{
      display:inline-flex;
      align-items:center;
      gap:12px;
      min-height:44px;
      font-weight:900;
      letter-spacing:-.02em;
    }
    .brand:hover .brand-mark{transform:rotate(8deg) scale(1.04);box-shadow:0 0 26px rgba(34,211,238,.38)}
    .brand-mark{
      width:38px;
      height:38px;
      border-radius:14px;
      position:relative;
      display:inline-block;
      background:
        linear-gradient(135deg, rgba(139,92,246,1), rgba(34,211,238,.88));
      box-shadow:0 0 0 1px rgba(255,255,255,.12),0 12px 34px rgba(139,92,246,.34);
    }
    .brand-mark:before{
      content:"";
      position:absolute;
      left:14px;
      top:10px;
      width:0;height:0;
      border-left:12px solid #fff;
      border-top:8px solid transparent;
      border-bottom:8px solid transparent;
      filter:drop-shadow(0 3px 8px rgba(0,0,0,.22));
    }
    .brand-mark:after{
      content:"";
      position:absolute;
      right:6px;
      bottom:6px;
      width:6px;
      height:6px;
      border-radius:50%;
      background:var(--teal);
    }
    .brand-text{font-size:18px;color:#fff;white-space:nowrap}
    .nav-links{
      display:flex;
      align-items:center;
      gap:8px;
      padding:8px;
      border:1px solid var(--border);
      border-radius:999px;
      background:rgba(255,255,255,.045);
    }
    .nav-link{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      min-height:42px;
      padding:0 16px;
      border-radius:999px;
      color:var(--muted);
      font-size:14px;
      font-weight:700;
      white-space:nowrap;
    }
    .nav-link:hover{
      color:#fff;
      background:rgba(34,211,238,.12);
      box-shadow:inset 0 0 0 1px rgba(34,211,238,.2);
    }
    .nav-link.active{
      color:#fff;
      background:linear-gradient(135deg, rgba(139,92,246,.95), rgba(168,85,247,.72));
      box-shadow:0 10px 28px rgba(139,92,246,.25);
    }
    .mobile-toggle{
      display:none;
      min-width:46px;
      height:46px;
      border:1px solid var(--border);
      border-radius:14px;
      background:rgba(255,255,255,.06);
      color:#fff;
      font-size:22px;
    }
    .breadcrumb-bar{
      border-bottom:1px solid var(--border);
      background:rgba(18,16,24,.66);
    }
    .breadcrumb-inner{
      min-height:58px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:16px;
      color:var(--weak);
      font-size:14px;
    }
    .breadcrumb{
      display:flex;
      align-items:center;
      gap:9px;
      flex-wrap:wrap;
    }
    .breadcrumb a:hover{color:var(--cyan);text-decoration:underline;text-underline-offset:4px}
    .back-link{
      display:inline-flex;
      align-items:center;
      gap:8px;
      min-height:38px;
      padding:0 13px;
      border-radius:999px;
      border:1px solid var(--border);
      color:var(--muted);
      background:rgba(255,255,255,.04);
      font-weight:700;
    }
    .back-link:hover{border-color:rgba(34,211,238,.42);color:#fff;background:rgba(34,211,238,.1)}
    .section{
      padding:76px 0;
      position:relative;
    }
    .section-tight{padding:50px 0}
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      min-height:32px;
      padding:0 12px;
      border:1px solid rgba(34,211,238,.2);
      border-radius:999px;
      color:#DDFBFF;
      background:rgba(34,211,238,.09);
      font-size:13px;
      font-weight:800;
    }
    .eyebrow:before{
      content:"";
      width:7px;height:7px;border-radius:50%;
      background:var(--teal);
      box-shadow:0 0 14px rgba(45,212,191,.8);
    }
    .hero-panel{
      display:grid;
      grid-template-columns:minmax(0,1.08fr) minmax(360px,.92fr);
      gap:28px;
      align-items:stretch;
    }
    .topic-hero{
      position:relative;
      overflow:hidden;
      border:1px solid var(--border);
      border-radius:30px;
      padding:42px;
      min-height:520px;
      background:
        linear-gradient(135deg, rgba(139,92,246,.18), transparent 36%),
        linear-gradient(160deg, rgba(33,26,46,.96), rgba(14,11,22,.94)),
        radial-gradient(circle at 90% 80%, rgba(34,211,238,.15), transparent 28%);
      box-shadow:var(--shadow);
    }
    .topic-hero:before{
      content:"";
      position:absolute;
      inset:auto -80px -120px auto;
      width:340px;height:340px;
      border-radius:50%;
      background:radial-gradient(circle, rgba(34,211,238,.24), transparent 68%);
      pointer-events:none;
    }
    .topic-hero:after{
      content:"";
      position:absolute;
      right:30px;
      top:34px;
      width:190px;
      height:260px;
      border-radius:28px;
      background:
        linear-gradient(145deg, rgba(255,255,255,.12), rgba(255,255,255,.02)),
        repeating-linear-gradient(90deg, rgba(255,255,255,.08) 0 2px, transparent 2px 16px);
      transform:rotate(8deg);
      opacity:.55;
      border:1px solid rgba(255,255,255,.13);
    }
    h1{
      position:relative;
      z-index:1;
      margin:18px 0 18px;
      max-width:780px;
      font-size:clamp(34px,6vw,62px);
      line-height:1.1;
      font-weight:900;
      letter-spacing:-.05em;
    }
    .hero-desc{
      position:relative;
      z-index:1;
      max-width:720px;
      color:var(--muted);
      font-size:17px;
      line-height:1.9;
      margin:0;
    }
    .hero-actions{
      position:relative;
      z-index:1;
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      margin-top:28px;
    }
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:9px;
      min-height:48px;
      padding:0 18px;
      border-radius:15px;
      font-size:15px;
      font-weight:850;
      border:1px solid transparent;
      cursor:pointer;
      user-select:none;
    }
    .btn-primary{
      color:#fff;
      background:linear-gradient(135deg, var(--primary), var(--cyan));
      box-shadow:0 14px 34px rgba(139,92,246,.28);
    }
    .btn-primary:hover{transform:translateY(-2px);filter:brightness(1.08);box-shadow:0 18px 42px rgba(34,211,238,.22)}
    .btn-secondary{
      color:var(--muted);
      background:rgba(255,255,255,.055);
      border-color:var(--border);
    }
    .btn-secondary:hover{color:#fff;border-color:rgba(34,211,238,.45);background:rgba(34,211,238,.1);transform:translateY(-2px)}
    .tag-row{
      position:relative;
      z-index:1;
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin-top:32px;
    }
    .tag{
      display:inline-flex;
      align-items:center;
      gap:7px;
      min-height:34px;
      padding:0 12px;
      border-radius:999px;
      border:1px solid var(--border);
      color:var(--muted);
      background:rgba(255,255,255,.045);
      font-size:13px;
      font-weight:750;
      white-space:nowrap;
    }
    .tag.hot{border-color:rgba(249,115,22,.35);color:#FFE7D5;background:rgba(249,115,22,.12)}
    .tag.active{border-color:rgba(139,92,246,.55);color:#fff;background:rgba(139,92,246,.22)}
    .tag.cyan{border-color:rgba(34,211,238,.35);color:#DDFBFF;background:rgba(34,211,238,.1)}
    .dashboard-card{
      border:1px solid var(--border);
      border-radius:30px;
      padding:24px;
      background:linear-gradient(180deg, rgba(255,255,255,.075), rgba(255,255,255,.035));
      box-shadow:var(--shadow);
      overflow:hidden;
      position:relative;
    }
    .dashboard-card:before{
      content:"";
      position:absolute;
      inset:0;
      background:radial-gradient(circle at 80% 0%, rgba(168,85,247,.22), transparent 42%);
      pointer-events:none;
    }
    .dash-top{
      position:relative;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:14px;
      padding-bottom:16px;
      border-bottom:1px solid var(--border);
    }
    .dash-title{font-weight:900;font-size:18px}
    .status-badge{
      display:inline-flex;
      align-items:center;
      gap:7px;
      min-height:30px;
      padding:0 11px;
      border-radius:999px;
      color:#DDFBFF;
      background:rgba(34,211,238,.12);
      border:1px solid rgba(34,211,238,.25);
      font-size:12px;
      font-weight:850;
    }
    .status-badge:before{
      content:"";
      width:7px;height:7px;border-radius:50%;
      background:var(--cyan);
      box-shadow:0 0 14px rgba(34,211,238,.7);
    }
    .calendar-grid{
      position:relative;
      display:grid;
      grid-template-columns:repeat(7,1fr);
      gap:8px;
      margin-top:20px;
    }
    .day-cell{
      min-height:58px;
      border-radius:15px;
      border:1px solid var(--border);
      background:rgba(14,11,22,.42);
      display:flex;
      flex-direction:column;
      align-items:center;
      justify-content:center;
      gap:2px;
      color:var(--weak);
      font-size:12px;
      font-weight:750;
    }
    .day-cell strong{color:#fff;font-size:15px}
    .day-cell.on{
      background:linear-gradient(135deg, rgba(139,92,246,.36), rgba(34,211,238,.14));
      border-color:rgba(34,211,238,.35);
      color:#DDFBFF;
      box-shadow:0 12px 24px rgba(34,211,238,.08);
    }
    .mini-rank{
      position:relative;
      margin-top:22px;
      display:grid;
      gap:11px;
    }
    .rank-line{
      display:grid;
      grid-template-columns:42px 1fr auto;
      align-items:center;
      gap:12px;
      padding:13px;
      border-radius:17px;
      border:1px solid var(--border);
      background:rgba(255,255,255,.045);
    }
    .rank-no{
      font-size:18px;
      font-weight:950;
      color:transparent;
      -webkit-text-stroke:1px rgba(34,211,238,.8);
    }
    .rank-line b{font-size:15px}
    .rank-line small{color:var(--weak)}
    .section-head{
      display:grid;
      grid-template-columns:minmax(0,1fr) auto;
      align-items:end;
      gap:20px;
      margin-bottom:28px;
    }
    .section-head h2{
      margin:10px 0 0;
      font-size:clamp(28px,4vw,42px);
      line-height:1.2;
      font-weight:900;
      letter-spacing:-.035em;
    }
    .section-head p{
      margin:10px 0 0;
      max-width:720px;
      color:var(--muted);
      line-height:1.85;
    }
    .section-link{
      color:var(--cyan);
      font-weight:850;
      white-space:nowrap;
    }
    .section-link:hover{text-decoration:underline;text-underline-offset:5px}
    .feature-flow{
      display:grid;
      grid-template-columns:1.12fr .88fr;
      gap:24px;
      align-items:stretch;
    }
    .spot-card{
      position:relative;
      min-height:390px;
      overflow:hidden;
      border:1px solid rgba(139,92,246,.32);
      border-radius:28px;
      padding:30px;
      background:
        linear-gradient(135deg, rgba(139,92,246,.30), rgba(34,211,238,.10) 46%, rgba(249,115,22,.09)),
        linear-gradient(180deg, rgba(33,26,46,.92), rgba(14,11,22,.94));
      box-shadow:var(--shadow-soft);
    }
    .spot-card:after{
      content:"";
      position:absolute;
      right:-28px;
      bottom:-46px;
      width:230px;height:230px;
      border-radius:42px;
      transform:rotate(12deg);
      background:
        linear-gradient(145deg, rgba(255,255,255,.16), rgba(255,255,255,.02)),
        linear-gradient(90deg, transparent 0 18%, rgba(255,255,255,.08) 18% 20%, transparent 20% 38%, rgba(255,255,255,.08) 38% 40%, transparent 40%);
      border:1px solid rgba(255,255,255,.14);
    }
    .spot-card h3,.spot-card p,.spot-card .tag-row,.spot-card .btn{position:relative;z-index:1}
    .spot-card h3{margin:16px 0 12px;font-size:30px;line-height:1.25;font-weight:900}
    .spot-card p{color:var(--muted);max-width:650px}
    .stack-list{display:grid;gap:14px}
    .mini-card{
      border:1px solid var(--border);
      border-radius:22px;
      padding:20px;
      background:rgba(255,255,255,.055);
    }
    .mini-card:hover,.group-card:hover,.guide-card:hover,.related-card:hover{
      transform:translateY(-3px);
      border-color:rgba(34,211,238,.38);
      box-shadow:0 18px 42px rgba(0,0,0,.18);
    }
    .mini-card h3{margin:10px 0 6px;font-size:19px;font-weight:900}
    .mini-card p,.group-card p,.guide-card p,.related-card p{color:var(--muted);font-size:14px;line-height:1.8}
    .meta-row{
      display:flex;
      flex-wrap:wrap;
      gap:8px;
      margin-top:14px;
      color:var(--weak);
      font-size:13px;
    }
    .topic-grid{
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:16px;
    }
    .group-card{
      min-height:230px;
      border:1px solid var(--border);
      border-radius:24px;
      padding:22px;
      background:linear-gradient(180deg, rgba(255,255,255,.065), rgba(255,255,255,.035));
      position:relative;
      overflow:hidden;
    }
    .group-card:before{
      content:"";
      position:absolute;
      right:-34px;
      top:-34px;
      width:110px;
      height:110px;
      border-radius:50%;
      background:rgba(139,92,246,.18);
    }
    .group-card h3{position:relative;margin:14px 0 8px;font-size:20px;font-weight:900}
    .icon-box{
      width:46px;height:46px;
      border-radius:16px;
      display:flex;
      align-items:center;
      justify-content:center;
      background:rgba(139,92,246,.18);
      border:1px solid rgba(139,92,246,.32);
      color:#fff;
      font-weight:900;
    }
    .guide-layout{
      display:grid;
      grid-template-columns:.85fr 1.15fr;
      gap:24px;
      align-items:start;
    }
    .rank-board{
      border:1px solid var(--border);
      border-radius:28px;
      padding:24px;
      background:rgba(255,255,255,.055);
      position:sticky;
      top:104px;
    }
    .rank-board h3{margin:0 0 18px;font-size:22px;font-weight:950}
    .progress-item{
      display:grid;
      gap:8px;
      padding:16px 0;
      border-top:1px solid var(--border);
    }
    .progress-item:first-of-type{border-top:0;padding-top:0}
    .progress-head{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      font-weight:850;
    }
    .bar{
      height:8px;
      border-radius:999px;
      background:rgba(255,255,255,.08);
      overflow:hidden;
    }
    .bar span{
      display:block;
      height:100%;
      border-radius:inherit;
      background:linear-gradient(90deg,var(--primary),var(--cyan));
    }
    .guide-cards{
      display:grid;
      grid-template-columns:repeat(2,1fr);
      gap:16px;
    }
    .guide-card{
      border:1px solid var(--border);
      border-radius:24px;
      padding:22px;
      background:linear-gradient(180deg, rgba(33,26,46,.86), rgba(255,255,255,.035));
    }
    .guide-card h3{margin:12px 0 8px;font-size:19px;font-weight:900}
    .step-list{
      display:grid;
      gap:12px;
      margin-top:18px;
    }
    .step{
      display:flex;
      gap:12px;
      padding:14px;
      border:1px solid var(--border);
      border-radius:18px;
      background:rgba(14,11,22,.36);
    }
    .step-no{
      flex:0 0 32px;
      width:32px;height:32px;
      border-radius:12px;
      display:flex;
      align-items:center;
      justify-content:center;
      color:#fff;
      font-weight:950;
      background:rgba(139,92,246,.34);
      border:1px solid rgba(139,92,246,.38);
    }
    .related-wrap{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:20px;
    }
    .related-card{
      border:1px solid var(--border);
      border-radius:26px;
      padding:24px;
      background:
        linear-gradient(135deg, rgba(34,211,238,.08), transparent),
        rgba(255,255,255,.052);
    }
    .related-card h3{margin:12px 0 8px;font-size:22px;font-weight:950}
    .faq-grid{
      display:grid;
      grid-template-columns:repeat(2,1fr);
      gap:16px;
    }
    .faq-card{
      border:1px solid var(--border);
      border-radius:22px;
      padding:22px;
      background:rgba(255,255,255,.052);
    }
    .faq-card:hover{border-color:rgba(139,92,246,.42);background:rgba(139,92,246,.08)}
    .faq-q{
      display:flex;
      gap:12px;
      align-items:flex-start;
      margin:0 0 8px;
      font-size:17px;
      font-weight:900;
      line-height:1.45;
    }
    .faq-q span{
      flex:0 0 28px;
      width:28px;height:28px;
      border-radius:10px;
      display:flex;align-items:center;justify-content:center;
      color:#fff;
      background:rgba(34,211,238,.16);
      border:1px solid rgba(34,211,238,.26);
      font-size:13px;
    }
    .faq-card p{margin:0;color:var(--muted);font-size:14px;line-height:1.85}
    .cta-band{
      border:1px solid rgba(34,211,238,.22);
      border-radius:30px;
      padding:30px;
      background:
        radial-gradient(circle at 88% 30%, rgba(34,211,238,.18), transparent 30%),
        linear-gradient(135deg, rgba(139,92,246,.22), rgba(14,11,22,.88));
      display:grid;
      grid-template-columns:1fr auto;
      align-items:center;
      gap:22px;
      box-shadow:var(--shadow-soft);
    }
    .cta-band h2{margin:0 0 8px;font-size:30px;font-weight:950;line-height:1.25}
    .cta-band p{margin:0;color:var(--muted)}
    .footer{
      padding:54px 0 28px;
      background:#09070D;
      border-top:1px solid var(--border);
      color:var(--weak);
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.5fr .75fr .75fr;
      gap:34px;
      align-items:start;
    }
    .footer-title{
      color:#fff;
      font-weight:900;
      margin-bottom:14px;
    }
    .footer a:not(.brand){
      display:block;
      padding:7px 0;
      color:var(--weak);
      font-size:14px;
    }
    .footer a:not(.brand):hover{color:var(--cyan);transform:translateX(3px)}
    .footer-bottom{
      margin-top:34px;
      padding-top:22px;
      border-top:1px solid var(--border);
      display:flex;
      justify-content:space-between;
      gap:18px;
      flex-wrap:wrap;
      font-size:13px;
      color:#7C8798;
    }
    ::selection{background:rgba(139,92,246,.45);color:#fff}
    ::-webkit-scrollbar{width:10px;height:10px}
    ::-webkit-scrollbar-track{background:#0B0910}
    ::-webkit-scrollbar-thumb{background:rgba(139,92,246,.55);border-radius:999px;border:2px solid #0B0910}
    @media (max-width:1024px){
      .hero-panel,.feature-flow,.guide-layout{grid-template-columns:1fr}
      .topic-grid{grid-template-columns:repeat(2,1fr)}
      .rank-board{position:relative;top:auto}
      .topic-hero{min-height:auto}
      .topic-hero:after{opacity:.3}
    }
    @media (max-width:768px){
      .nav-wrap{min-height:66px}
      .mobile-toggle{display:inline-flex;align-items:center;justify-content:center}
      .nav-links{
        position:absolute;
        left:16px;
        right:16px;
        top:70px;
        display:none;
        flex-direction:column;
        align-items:stretch;
        border-radius:22px;
        padding:10px;
        background:rgba(14,11,22,.98);
        box-shadow:var(--shadow);
      }
      .header.open .nav-links{display:flex}
      .nav-link{justify-content:flex-start;padding:0 16px}
      .breadcrumb-inner{align-items:flex-start;flex-direction:column;padding:12px 0}
      .section{padding:58px 0}
      .topic-hero,.dashboard-card{border-radius:24px;padding:24px}
      .hero-actions .btn{width:100%}
      .section-head{grid-template-columns:1fr}
      .guide-cards,.related-wrap,.faq-grid,.footer-grid{grid-template-columns:1fr}
      .cta-band{grid-template-columns:1fr;padding:24px}
      .cta-band .btn{width:100%}
      .calendar-grid{gap:6px}
      .day-cell{min-height:48px;border-radius:12px}
      .footer-bottom{flex-direction:column}
    }
    @media (max-width:520px){
      .site-container{width:min(100% - 24px,var(--container))}
      .brand-text{font-size:16px}
      h1{font-size:34px}
      .topic-grid{grid-template-columns:1fr}
      .rank-line{grid-template-columns:34px 1fr}
      .rank-line .tag{grid-column:2}
      .tag-row{overflow-x:auto;flex-wrap:nowrap;padding-bottom:4px}
      .tag-row::-webkit-scrollbar{height:4px}
    }

/* roulang page: category1 */
:root{
      --bg:#0e0b16;
      --bg-2:#121018;
      --panel:#1d1727;
      --panel-2:#211a2e;
      --panel-3:rgba(255,255,255,.06);
      --text:#f8fafc;
      --muted:#cbd5e1;
      --weak:#94a3b8;
      --line:rgba(255,255,255,.1);
      --line-strong:rgba(255,255,255,.16);
      --primary:#8b5cf6;
      --primary-2:#a855f7;
      --accent:#22d3ee;
      --accent-2:#2dd4bf;
      --hot:#f97316;
      --rose:#f43f5e;
      --radius:22px;
      --radius-sm:14px;
      --shadow:0 20px 70px rgba(0,0,0,.34);
      --container:1220px;
    }

    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      min-height:100vh;
      font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;
      color:var(--text);
      background:
        radial-gradient(circle at 12% 8%, rgba(139,92,246,.30), transparent 34%),
        radial-gradient(circle at 88% 20%, rgba(34,211,238,.18), transparent 30%),
        linear-gradient(180deg,#0e0b16 0%,#121018 52%,#0b0811 100%);
      line-height:1.75;
      overflow-x:hidden;
    }
    body:before{
      content:"";
      position:fixed;
      inset:0;
      pointer-events:none;
      opacity:.32;
      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(to bottom, #000 0%, transparent 86%);
      z-index:-1;
    }
    a{color:inherit;text-decoration:none}
    img,svg{display:block;max-width:100%}
    button,input{font:inherit}
    ::selection{background:rgba(139,92,246,.55);color:#fff}
    ::-webkit-scrollbar{width:10px;height:10px}
    ::-webkit-scrollbar-track{background:#0b0811}
    ::-webkit-scrollbar-thumb{background:rgba(139,92,246,.55);border-radius:999px;border:2px solid #0b0811}
    :focus-visible{outline:3px solid rgba(34,211,238,.55);outline-offset:3px;border-radius:12px}

    .site-container{
      width:min(100% - 32px, var(--container));
      margin-inline:auto;
    }

    .site-header{
      position:sticky;
      top:0;
      z-index:50;
      background:rgba(14,11,22,.86);
      border-bottom:1px solid var(--line);
      backdrop-filter:blur(14px);
    }
    .nav-wrap{
      min-height:76px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:22px;
    }
    .brand{
      display:inline-flex;
      align-items:center;
      gap:12px;
      min-height:46px;
      font-weight:900;
      letter-spacing:-.02em;
      color:#fff;
    }
    .brand-mark{
      width:40px;
      height:40px;
      border-radius:15px;
      position:relative;
      flex:0 0 auto;
      background:
        linear-gradient(135deg, rgba(139,92,246,1), rgba(34,211,238,.95));
      box-shadow:0 0 34px rgba(139,92,246,.36);
    }
    .brand-mark:before{
      content:"";
      position:absolute;
      left:15px;
      top:11px;
      width:0;
      height:0;
      border-top:9px solid transparent;
      border-bottom:9px solid transparent;
      border-left:14px solid #fff;
      filter:drop-shadow(0 2px 5px rgba(0,0,0,.28));
    }
    .brand-mark:after{
      content:"";
      position:absolute;
      inset:7px;
      border:1px solid rgba(255,255,255,.34);
      border-radius:11px;
    }
    .brand-text{font-size:19px;white-space:nowrap}
    .nav-links{
      display:flex;
      align-items:center;
      justify-content:flex-end;
      gap:8px;
    }
    .nav-link{
      display:inline-flex;
      align-items:center;
      min-height:42px;
      padding:0 15px;
      border-radius:999px;
      color:var(--muted);
      border:1px solid transparent;
      font-size:15px;
      font-weight:700;
      transition:background .22s ease,border-color .22s ease,color .22s ease,transform .22s ease;
    }
    .nav-link:hover{
      color:#fff;
      border-color:rgba(34,211,238,.25);
      background:rgba(34,211,238,.08);
      transform:translateY(-1px);
    }
    .nav-link.active{
      color:#fff;
      background:linear-gradient(135deg, rgba(139,92,246,.95), rgba(168,85,247,.74));
      border-color:rgba(255,255,255,.18);
      box-shadow:0 10px 28px rgba(139,92,246,.24);
    }
    .menu-toggle{
      display:none;
      width:46px;
      height:46px;
      border:1px solid var(--line);
      border-radius:14px;
      color:#fff;
      background:rgba(255,255,255,.06);
      cursor:pointer;
      transition:.22s ease;
    }
    .menu-toggle:hover{border-color:rgba(34,211,238,.35);background:rgba(34,211,238,.08)}
    .menu-toggle span{
      display:block;
      width:20px;
      height:2px;
      margin:5px auto;
      border-radius:99px;
      background:#fff;
    }

    .breadcrumb-bar{
      border-bottom:1px solid var(--line);
      background:rgba(18,16,24,.74);
    }
    .breadcrumb-inner{
      min-height:58px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:14px;
      color:var(--weak);
      font-size:14px;
    }
    .crumbs{
      display:flex;
      align-items:center;
      gap:9px;
      flex-wrap:wrap;
    }
    .crumbs a{
      color:var(--muted);
      transition:.2s ease;
    }
    .crumbs a:hover{color:var(--accent);text-decoration:underline;text-underline-offset:4px}
    .back-link{
      display:inline-flex;
      align-items:center;
      gap:8px;
      min-height:38px;
      padding:0 13px;
      border-radius:999px;
      background:rgba(255,255,255,.05);
      border:1px solid var(--line);
      color:var(--muted);
      font-weight:700;
      transition:.22s ease;
      white-space:nowrap;
    }
    .back-link:hover{
      color:#fff;
      border-color:rgba(34,211,238,.32);
      background:rgba(34,211,238,.08);
    }

    .section{padding:72px 0}
    .section-tight{padding:52px 0}
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:7px 12px;
      border-radius:999px;
      color:#dbeafe;
      background:rgba(139,92,246,.14);
      border:1px solid rgba(139,92,246,.28);
      font-size:13px;
      font-weight:800;
    }
    .eyebrow:before{
      content:"";
      width:8px;
      height:8px;
      border-radius:999px;
      background:var(--accent);
      box-shadow:0 0 18px rgba(34,211,238,.78);
    }
    .page-hero{
      padding:58px 0 42px;
      position:relative;
    }
    .page-hero:after{
      content:"";
      position:absolute;
      inset:auto -10% -40px auto;
      width:420px;
      height:420px;
      border-radius:999px;
      background:radial-gradient(circle, rgba(168,85,247,.18), transparent 66%);
      pointer-events:none;
    }
    .hero-card{
      position:relative;
      overflow:hidden;
      border-radius:30px;
      border:1px solid var(--line-strong);
      background:
        linear-gradient(135deg, rgba(33,26,46,.94), rgba(29,23,39,.78)),
        radial-gradient(circle at 80% 20%, rgba(34,211,238,.17), transparent 38%);
      box-shadow:var(--shadow);
      padding:42px;
    }
    .hero-card:before{
      content:"";
      position:absolute;
      inset:0;
      pointer-events:none;
      background:
        linear-gradient(120deg, transparent 0%, rgba(255,255,255,.06) 35%, transparent 70%),
        repeating-linear-gradient(90deg, rgba(255,255,255,.035) 0 1px, transparent 1px 18px);
      opacity:.45;
    }
    .hero-content{position:relative;z-index:1;text-align:center;max-width:900px;margin-inline:auto}
    h1{
      margin:18px 0 16px;
      font-size:clamp(34px,5vw,58px);
      line-height:1.12;
      letter-spacing:-.05em;
      font-weight:900;
    }
    .hero-desc{
      max-width:790px;
      margin:0 auto;
      color:var(--muted);
      font-size:17px;
      line-height:1.9;
    }
    .search-panel{
      max-width:780px;
      margin:28px auto 0;
      padding:8px;
      display:flex;
      gap:8px;
      border-radius:18px;
      background:rgba(10,8,16,.72);
      border:1px solid var(--line);
      box-shadow:0 18px 50px rgba(0,0,0,.24);
    }
    .search-panel input{
      width:100%;
      min-height:52px;
      border:0;
      outline:0;
      color:#fff;
      background:transparent;
      padding:0 16px;
      border-radius:14px;
    }
    .search-panel input::placeholder{color:var(--weak)}
    .search-panel:focus-within{
      border-color:rgba(34,211,238,.42);
      box-shadow:0 0 0 4px rgba(34,211,238,.12), 0 18px 50px rgba(0,0,0,.25);
    }
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      min-height:46px;
      padding:0 18px;
      border-radius:14px;
      border:1px solid transparent;
      font-weight:800;
      font-size:15px;
      cursor:pointer;
      transition:transform .22s ease, box-shadow .22s ease, border-color .22s ease, background .22s ease, color .22s ease;
      white-space:nowrap;
    }
    .btn-primary{
      color:#fff;
      background:linear-gradient(135deg, var(--primary), var(--accent));
      box-shadow:0 16px 38px rgba(139,92,246,.26);
    }
    .btn-primary:hover{transform:translateY(-2px);box-shadow:0 20px 48px rgba(34,211,238,.22)}
    .btn-secondary{
      color:var(--muted);
      background:rgba(255,255,255,.05);
      border-color:var(--line);
    }
    .btn-secondary:hover{color:#fff;border-color:rgba(34,211,238,.35);background:rgba(34,211,238,.08);transform:translateY(-2px)}
    .quick-tags{
      margin-top:18px;
      display:flex;
      justify-content:center;
      gap:10px;
      flex-wrap:wrap;
    }
    .tag,.filter-chip{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      min-height:34px;
      padding:0 12px;
      border-radius:999px;
      color:var(--muted);
      background:rgba(255,255,255,.055);
      border:1px solid var(--line);
      font-size:13px;
      font-weight:750;
      transition:.22s ease;
    }
    .tag:hover,.filter-chip:hover{
      color:#fff;
      border-color:rgba(34,211,238,.35);
      background:rgba(34,211,238,.08);
    }
    .tag.hot{color:#fff;border-color:rgba(249,115,22,.28);background:rgba(249,115,22,.12)}
    .filter-chip.active{
      color:#fff;
      background:rgba(139,92,246,.95);
      border-color:rgba(255,255,255,.18);
    }

    .section-head{
      display:flex;
      align-items:end;
      justify-content:space-between;
      gap:22px;
      margin-bottom:24px;
    }
    .section-title{
      margin:0;
      font-size:clamp(26px,3.5vw,40px);
      line-height:1.2;
      letter-spacing:-.035em;
      font-weight:900;
    }
    .section-copy{
      max-width:680px;
      margin:10px 0 0;
      color:var(--muted);
      font-size:16px;
      line-height:1.85;
    }

    .filter-strip{
      display:flex;
      gap:10px;
      overflow:auto;
      padding:12px;
      border-radius:20px;
      background:rgba(255,255,255,.04);
      border:1px solid var(--line);
      margin-bottom:24px;
    }
    .layout-grid{
      display:grid;
      grid-template-columns:260px minmax(0,1fr) 286px;
      gap:22px;
      align-items:start;
    }
    .panel,.card{
      border:1px solid var(--line);
      background:linear-gradient(180deg, rgba(33,26,46,.86), rgba(29,23,39,.74));
      border-radius:var(--radius);
      box-shadow:0 16px 46px rgba(0,0,0,.18);
    }
    .panel{padding:20px}
    .side-panel{
      position:sticky;
      top:100px;
    }
    .filter-group + .filter-group{margin-top:22px;padding-top:20px;border-top:1px solid var(--line)}
    .filter-title{
      color:#fff;
      font-weight:900;
      font-size:15px;
      margin-bottom:12px;
    }
    .filter-list{
      display:flex;
      flex-wrap:wrap;
      gap:9px;
    }
    .filter-list .filter-chip{min-height:32px;font-size:13px;padding:0 10px}
    .hint-box{
      margin-top:18px;
      padding:14px;
      border-radius:16px;
      background:rgba(34,211,238,.075);
      border:1px solid rgba(34,211,238,.18);
      color:var(--muted);
      font-size:14px;
      line-height:1.8;
    }

    .content-list{display:grid;gap:14px}
    .entry-card{
      position:relative;
      display:grid;
      grid-template-columns:118px minmax(0,1fr);
      gap:16px;
      padding:16px;
      overflow:hidden;
      transition:.24s ease;
    }
    .entry-card:hover{
      transform:translateY(-3px);
      border-color:rgba(34,211,238,.32);
      box-shadow:0 22px 58px rgba(0,0,0,.28),0 0 0 1px rgba(34,211,238,.08) inset;
    }
    .thumb{
      min-height:118px;
      border-radius:18px;
      background:
        radial-gradient(circle at 70% 22%, rgba(34,211,238,.45), transparent 26%),
        linear-gradient(135deg, rgba(139,92,246,.72), rgba(18,16,24,.76));
      border:1px solid rgba(255,255,255,.14);
      position:relative;
      overflow:hidden;
    }
    .thumb:before{
      content:"";
      position:absolute;
      inset:14px;
      border-radius:13px;
      border:1px solid rgba(255,255,255,.22);
    }
    .thumb:after{
      content:"";
      position:absolute;
      left:45px;
      top:41px;
      width:0;height:0;
      border-top:18px solid transparent;
      border-bottom:18px solid transparent;
      border-left:26px solid rgba(255,255,255,.92);
      filter:drop-shadow(0 5px 10px rgba(0,0,0,.3));
    }
    .entry-tags{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:8px}
    .mini-badge{
      display:inline-flex;
      align-items:center;
      min-height:24px;
      padding:0 8px;
      border-radius:999px;
      color:#dbeafe;
      background:rgba(139,92,246,.14);
      border:1px solid rgba(139,92,246,.28);
      font-size:12px;
      font-weight:800;
    }
    .mini-badge.cyan{color:#ccfbf1;background:rgba(45,212,191,.12);border-color:rgba(45,212,191,.24)}
    .mini-badge.orange{color:#fed7aa;background:rgba(249,115,22,.12);border-color:rgba(249,115,22,.25)}
    .entry-title{
      display:inline-block;
      color:#fff;
      font-size:19px;
      line-height:1.35;
      font-weight:900;
      letter-spacing:-.02em;
      transition:.22s ease;
    }
    .entry-card:hover .entry-title{color:var(--accent)}
    .entry-summary{
      margin:8px 0 12px;
      color:var(--muted);
      font-size:14.5px;
      line-height:1.8;
    }
    .entry-meta{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      flex-wrap:wrap;
      color:var(--weak);
      font-size:13px;
    }
    .link-btn{
      color:#fff;
      font-weight:900;
      padding:8px 11px;
      border-radius:12px;
      background:rgba(255,255,255,.06);
      border:1px solid var(--line);
      transition:.22s ease;
    }
    .link-btn:hover{background:rgba(34,211,238,.1);border-color:rgba(34,211,238,.32);transform:translateY(-1px)}

    .rank-list{display:grid;gap:12px}
    .rank-item{
      display:grid;
      grid-template-columns:44px 1fr;
      gap:12px;
      align-items:center;
      padding:13px;
      border-radius:17px;
      background:rgba(255,255,255,.045);
      border:1px solid rgba(255,255,255,.07);
      transition:.22s ease;
    }
    .rank-item:hover{background:rgba(34,211,238,.07);border-color:rgba(34,211,238,.22)}
    .rank-no{
      font-size:22px;
      line-height:1;
      font-weight:950;
      color:transparent;
      -webkit-text-stroke:1px rgba(34,211,238,.85);
      text-shadow:0 0 24px rgba(34,211,238,.22);
    }
    .rank-title{font-size:14.5px;font-weight:900;color:#fff;line-height:1.45}
    .rank-desc{font-size:12.5px;color:var(--weak);margin-top:3px}
    .progress{
      width:100%;
      height:6px;
      margin-top:8px;
      border-radius:999px;
      background:rgba(255,255,255,.08);
      overflow:hidden;
    }
    .progress span{
      display:block;height:100%;
      border-radius:999px;
      background:linear-gradient(90deg,var(--primary),var(--accent));
    }

    .pagination{
      display:flex;
      justify-content:center;
      gap:9px;
      flex-wrap:wrap;
      margin-top:24px;
    }
    .page-btn{
      min-width:42px;
      min-height:42px;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      padding:0 14px;
      border-radius:13px;
      color:var(--muted);
      background:rgba(255,255,255,.05);
      border:1px solid var(--line);
      font-weight:800;
      transition:.22s ease;
    }
    .page-btn:hover{color:#fff;border-color:rgba(34,211,238,.32);background:rgba(34,211,238,.08)}
    .page-btn.active{color:#fff;background:var(--primary);border-color:rgba(255,255,255,.18)}

    .steps-grid{
      display:grid;
      grid-template-columns:1.1fr .9fr;
      gap:22px;
    }
    .timeline{
      display:grid;
      gap:14px;
      padding:20px;
    }
    .step-item{
      display:grid;
      grid-template-columns:42px 1fr;
      gap:14px;
      padding:14px;
      border-radius:18px;
      background:rgba(255,255,255,.045);
      border:1px solid rgba(255,255,255,.07);
    }
    .step-no{
      width:42px;height:42px;
      border-radius:15px;
      display:flex;
      align-items:center;
      justify-content:center;
      color:#fff;
      font-weight:950;
      background:linear-gradient(135deg,var(--primary),var(--accent));
    }
    .step-item h3{margin:0;color:#fff;font-size:17px;font-weight:900}
    .step-item p{margin:5px 0 0;color:var(--muted);font-size:14.5px;line-height:1.75}
    .device-card{
      padding:24px;
      display:flex;
      flex-direction:column;
      justify-content:space-between;
      min-height:100%;
    }
    .device-grid{
      display:grid;
      grid-template-columns:repeat(2,1fr);
      gap:12px;
      margin-top:18px;
    }
    .device-box{
      min-height:86px;
      border-radius:18px;
      padding:14px;
      background:rgba(10,8,16,.38);
      border:1px solid rgba(255,255,255,.08);
    }
    .device-box strong{display:block;color:#fff;font-size:15px}
    .device-box span{display:block;color:var(--weak);font-size:13px;margin-top:4px}

    .faq-grid{
      display:grid;
      grid-template-columns:repeat(2,minmax(0,1fr));
      gap:16px;
    }
    .faq-card{
      padding:20px;
      transition:.22s ease;
    }
    .faq-card:hover{border-color:rgba(34,211,238,.25);transform:translateY(-2px)}
    .faq-q{
      display:flex;
      gap:10px;
      color:#fff;
      font-size:17px;
      font-weight:900;
      line-height:1.45;
    }
    .q-mark{
      flex:0 0 auto;
      width:28px;height:28px;
      border-radius:10px;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      color:#fff;
      font-size:13px;
      background:rgba(139,92,246,.95);
    }
    .faq-card p{margin:10px 0 0;color:var(--muted);font-size:14.5px;line-height:1.85}

    .cta-panel{
      position:relative;
      overflow:hidden;
      border-radius:30px;
      border:1px solid rgba(255,255,255,.14);
      background:
        radial-gradient(circle at 80% 22%, rgba(34,211,238,.22), transparent 34%),
        linear-gradient(135deg, rgba(139,92,246,.32), rgba(33,26,46,.9));
      padding:34px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:24px;
      box-shadow:var(--shadow);
    }
    .cta-panel h2{margin:0;color:#fff;font-size:clamp(24px,3vw,36px);line-height:1.22;font-weight:950;letter-spacing:-.035em}
    .cta-panel p{margin:9px 0 0;color:var(--muted);max-width:680px}

    .footer{
      margin-top:46px;
      padding:54px 0 26px;
      color:var(--weak);
      background:#09070d;
      border-top:1px solid var(--line);
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.4fr .7fr .7fr;
      gap:32px;
    }
    .footer-title{
      color:#fff;
      font-weight:900;
      margin-bottom:12px;
    }
    .footer a:not(.brand){
      display:block;
      color:var(--weak);
      padding:5px 0;
      transition:.2s ease;
    }
    .footer a:not(.brand):hover{color:var(--accent);transform:translateX(2px)}
    .footer-bottom{
      margin-top:34px;
      padding-top:18px;
      border-top:1px solid var(--line);
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:16px;
      flex-wrap:wrap;
      font-size:13px;
      color:#7f8da3;
    }

    @media (max-width:1100px){
      .layout-grid{grid-template-columns:230px minmax(0,1fr)}
      .rank-panel{grid-column:1 / -1;position:static}
      .rank-list{grid-template-columns:repeat(3,minmax(0,1fr))}
    }
    @media (max-width:900px){
      .menu-toggle{display:block}
      .nav-links{
        position:absolute;
        left:16px;
        right:16px;
        top:76px;
        display:none;
        flex-direction:column;
        align-items:stretch;
        padding:12px;
        border-radius:20px;
        background:rgba(14,11,22,.96);
        border:1px solid var(--line);
        box-shadow:var(--shadow);
      }
      .nav-links.open{display:flex}
      .nav-link{justify-content:center}
      .breadcrumb-inner{align-items:flex-start;flex-direction:column;padding:13px 0}
      .hero-card{padding:30px 20px}
      .search-panel{flex-direction:column}
      .search-panel .btn{width:100%}
      .section-head{align-items:flex-start;flex-direction:column}
      .layout-grid{grid-template-columns:1fr}
      .side-panel{position:static}
      .rank-list{grid-template-columns:1fr}
      .steps-grid{grid-template-columns:1fr}
      .faq-grid{grid-template-columns:1fr}
      .cta-panel{align-items:flex-start;flex-direction:column}
      .footer-grid{grid-template-columns:1fr}
    }
    @media (max-width:620px){
      .site-container{width:min(100% - 24px,var(--container))}
      .nav-wrap{min-height:68px}
      .nav-links{top:68px}
      .brand-text{font-size:17px}
      .brand-mark{width:36px;height:36px;border-radius:13px}
      .page-hero{padding:36px 0 28px}
      .section{padding:52px 0}
      .section-tight{padding:40px 0}
      .entry-card{grid-template-columns:1fr}
      .thumb{min-height:150px}
      .device-grid{grid-template-columns:1fr}
      .quick-tags{justify-content:flex-start;overflow:auto;flex-wrap:nowrap;padding-bottom:3px}
      .tag{flex:0 0 auto}
      .cta-panel{padding:24px}
      .footer-bottom{align-items:flex-start;flex-direction:column}
    }