/* roulang page: index */
:root{
      --primary:#2563EB;
      --primary-strong:#1D4ED8;
      --primary-soft:#EFF6FF;
      --accent:#0EA5A4;
      --cyan-soft:#ECFEFF;
      --bg:#F8FBFF;
      --surface:#FFFFFF;
      --surface-2:#F1F6FC;
      --text:#102033;
      --muted:#475569;
      --weak:#64748B;
      --border:#DDE7F3;
      --border-soft:rgba(148,163,184,.24);
      --shadow:0 18px 45px rgba(15,23,42,.08);
      --shadow-hover:0 24px 58px rgba(37,99,235,.14);
      --radius:22px;
      --radius-lg:30px;
      --container:1200px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans CJK SC",Arial,sans-serif;
      color:var(--text);
      background:
        radial-gradient(circle at 8% 6%, rgba(37,99,235,.08), transparent 26%),
        radial-gradient(circle at 86% 12%, rgba(14,165,164,.08), transparent 24%),
        var(--bg);
      line-height:1.7;
      text-rendering:optimizeLegibility;
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input,select,textarea{font:inherit}
    button{cursor:pointer}
    .site-container{width:min(var(--container), calc(100% - 40px));margin-inline:auto}
    .skip-link{position:absolute;left:-999px;top:12px;background:var(--primary);color:#fff;padding:10px 14px;border-radius:999px;z-index:80}
    .skip-link:focus{left:16px}
    .site-header{
      position:sticky;top:0;z-index:50;
      background:rgba(255,255,255,.92);
      backdrop-filter:saturate(160%) blur(16px);
      border-bottom:1px solid var(--border-soft);
      box-shadow:0 8px 24px rgba(15,23,42,.04);
    }
    .nav-wrap{height:78px;display:flex;align-items:center;justify-content:space-between;gap:22px}
    .brand{display:flex;align-items:center;gap:12px;min-width:max-content}
    .brand-mark{
      width:44px;height:44px;border-radius:16px;
      background:linear-gradient(135deg,#2563EB,#60A5FA);
      position:relative;box-shadow:0 12px 26px rgba(37,99,235,.25);
    }
    .brand-mark:before{content:"";position:absolute;inset:11px;border:2px solid rgba(255,255,255,.72);border-radius:999px}
    .brand-mark:after{content:"";position:absolute;right:10px;top:9px;width:12px;height:12px;border-top:3px solid #fff;border-right:3px solid #fff;transform:rotate(45deg)}
    .brand-title{font-weight:800;letter-spacing:-.02em;color:var(--text);font-size:18px;line-height:1.2}
    .brand-sub{font-size:12px;color:var(--weak);margin-top:1px}
    .desktop-nav{display:flex;align-items:center;gap:8px;margin-left:auto}
    .nav-link{
      padding:10px 16px;border-radius:999px;color:#334155;font-size:15px;font-weight:650;
      transition:color .22s ease, background .22s ease, transform .22s ease;
    }
    .nav-link:hover{color:var(--primary);background:var(--primary-soft);transform:translateY(-1px)}
    .nav-link.active{color:var(--primary);background:#EAF3FF}
    .nav-cta,.btn-primary{
      display:inline-flex;align-items:center;justify-content:center;gap:8px;
      min-height:46px;padding:0 22px;border-radius:999px;
      background:linear-gradient(135deg,var(--primary),#3B82F6);
      color:#fff;font-weight:750;border:1px solid rgba(255,255,255,.16);
      box-shadow:0 14px 30px rgba(37,99,235,.24);
      transition:transform .22s ease, box-shadow .22s ease, background .22s ease;
    }
    .nav-cta:hover,.btn-primary:hover{transform:translateY(-2px);box-shadow:0 18px 42px rgba(37,99,235,.30);background:linear-gradient(135deg,var(--primary-strong),#2563EB)}
    .btn-secondary{
      display:inline-flex;align-items:center;justify-content:center;gap:8px;
      min-height:46px;padding:0 22px;border-radius:999px;
      color:var(--primary);font-weight:750;background:#fff;border:1px solid #BFDBFE;
      box-shadow:0 10px 24px rgba(15,23,42,.05);
      transition:background .22s ease, transform .22s ease, border-color .22s ease;
    }
    .btn-secondary:hover{background:var(--primary-soft);border-color:#93C5FD;transform:translateY(-2px)}
    .btn-ghost{
      display:inline-flex;align-items:center;gap:8px;padding:10px 14px;border-radius:999px;
      color:var(--primary);font-weight:700;transition:background .22s ease,color .22s ease;
    }
    .btn-ghost:hover{background:var(--primary-soft);color:var(--primary-strong)}
    .nav-cta:focus-visible,.btn-primary:focus-visible,.btn-secondary:focus-visible,.btn-ghost:focus-visible,.nav-link:focus-visible,.menu-toggle:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,summary:focus-visible{
      outline:3px solid rgba(37,99,235,.28);outline-offset:3px;
    }
    .menu-toggle{
      display:none;width:46px;height:46px;border-radius:15px;border:1px solid var(--border);
      background:#fff;color:var(--text);align-items:center;justify-content:center;
    }
    .menu-line{width:20px;height:2px;background:var(--text);position:relative;border-radius:99px}
    .menu-line:before,.menu-line:after{content:"";position:absolute;left:0;width:20px;height:2px;background:var(--text);border-radius:99px}
    .menu-line:before{top:-7px}.menu-line:after{top:7px}
    .mobile-panel{display:none;border-top:1px solid var(--border);padding:12px 0 18px;background:#fff}
    .mobile-panel.open{display:block}
    .mobile-panel a{display:flex;margin:8px 0;padding:12px 14px;border-radius:16px;font-weight:700;color:#334155}
    .mobile-panel a.active,.mobile-panel a:hover{background:var(--primary-soft);color:var(--primary)}
    .hero{padding:86px 0 68px;position:relative;overflow:hidden}
    .hero-grid{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(360px,.9fr);gap:46px;align-items:center}
    .eyebrow,.badge{
      display:inline-flex;align-items:center;gap:8px;
      padding:8px 12px;border-radius:999px;background:#EAF3FF;color:var(--primary);
      font-size:14px;font-weight:750;border:1px solid #BFDBFE;
    }
    .dot{width:8px;height:8px;border-radius:999px;background:var(--accent);box-shadow:0 0 0 6px rgba(14,165,164,.12)}
    h1{font-size:clamp(36px,5vw,62px);line-height:1.12;letter-spacing:-.045em;margin:18px 0 18px;font-weight:900;color:var(--text)}
    h2{font-size:clamp(28px,3.4vw,40px);line-height:1.22;letter-spacing:-.03em;font-weight:850;color:var(--text)}
    h3{font-size:21px;line-height:1.35;font-weight:820;color:var(--text)}
    .lead{font-size:18px;color:var(--muted);max-width:680px}
    .hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:28px}
    .trust-row{display:flex;gap:10px;flex-wrap:wrap;margin-top:24px}
    .trust-pill{display:inline-flex;align-items:center;gap:7px;padding:8px 12px;border:1px solid var(--border);background:rgba(255,255,255,.78);border-radius:999px;color:#334155;font-size:14px;font-weight:650}
    .hero-panel{
      position:relative;border-radius:var(--radius-lg);padding:18px;background:#fff;
      border:1px solid var(--border-soft);box-shadow:var(--shadow);
    }
    .hero-image{height:210px;border-radius:24px;overflow:hidden;position:relative;margin-bottom:16px;background:#EAF3FF}
    .hero-image img{width:100%;height:100%;object-fit:cover}
    .hero-image:after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(255,255,255,.08),rgba(15,23,42,.18))}
    .status-card{
      position:absolute;left:28px;right:28px;top:154px;
      background:rgba(255,255,255,.96);border:1px solid var(--border-soft);
      border-radius:20px;padding:14px;box-shadow:0 18px 34px rgba(15,23,42,.12);
    }
    .status-top{display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:14px;color:var(--weak);font-weight:700}
    .progress{height:8px;background:#E2E8F0;border-radius:999px;overflow:hidden;margin-top:12px}
    .progress span{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,var(--accent),var(--primary))}
    .metric-mini{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin-top:42px}
    .metric-box,.card{
      background:#fff;border:1px solid var(--border-soft);border-radius:var(--radius);
      box-shadow:var(--shadow);transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
    }
    .metric-box{padding:18px}
    .metric-box:hover,.card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:#BFDBFE}
    .metric-num{font-size:30px;font-weight:900;color:var(--primary);letter-spacing:-.03em}
    .metric-label{font-size:14px;color:var(--weak);font-weight:650}
    .section{padding:82px 0}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:24px;margin-bottom:30px}
    .section-head p{max-width:620px;color:var(--muted);font-size:17px;margin:10px 0 0}
    .board-grid{display:grid;grid-template-columns:1.15fr .85fr .85fr .85fr;gap:18px}
    .board-card{padding:26px;min-height:170px}
    .board-card.feature{background:linear-gradient(135deg,#fff,#EFF6FF)}
    .small-tag{display:inline-flex;padding:6px 10px;border-radius:999px;background:var(--primary-soft);color:var(--primary);font-size:13px;font-weight:760}
    .board-number{font-size:42px;font-weight:920;color:var(--primary);line-height:1;margin:18px 0 8px}
    .board-text{color:var(--muted);font-size:15px}
    .matrix{display:grid;grid-template-columns:.9fr 1.1fr;gap:24px;align-items:stretch}
    .matrix-intro{
      padding:32px;border-radius:var(--radius-lg);background:linear-gradient(145deg,#EAF3FF,#FFFFFF);
      border:1px solid #BFDBFE;box-shadow:var(--shadow);position:relative;overflow:hidden;
    }
    .matrix-intro:after{content:"";position:absolute;right:-45px;bottom:-45px;width:170px;height:170px;border-radius:50%;background:rgba(37,99,235,.10)}
    .matrix-list{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
    .service-card{padding:24px}
    .icon-chip{
      width:46px;height:46px;border-radius:16px;background:var(--primary-soft);color:var(--primary);
      display:flex;align-items:center;justify-content:center;font-weight:900;margin-bottom:16px;
    }
    .service-card:nth-child(2) .icon-chip{background:var(--cyan-soft);color:var(--accent)}
    .service-card:nth-child(3) .icon-chip{background:#F5F3FF;color:#6D5BD0}
    .service-card:nth-child(4) .icon-chip{background:#F8FAFC;color:#334155}
    .compare-wrap{display:grid;grid-template-columns:1fr 1fr;gap:22px}
    .compare-card{padding:30px;border-radius:var(--radius-lg);border:1px solid var(--border-soft);box-shadow:var(--shadow)}
    .compare-card.muted{background:#F8FAFC;color:#475569}
    .compare-card.focus{background:linear-gradient(145deg,#FFFFFF,#EFF6FF);border-color:#BFDBFE}
    .compare-list{display:grid;gap:12px;margin-top:20px}
    .compare-item{display:flex;gap:10px;align-items:flex-start;padding:12px;border-radius:16px;background:rgba(255,255,255,.72);border:1px solid rgba(226,232,240,.86)}
    .check{width:22px;height:22px;border-radius:999px;display:flex;align-items:center;justify-content:center;flex:0 0 auto;background:var(--primary);color:#fff;font-size:13px;font-weight:900;margin-top:2px}
    .content-layout{display:grid;grid-template-columns:1.2fr .8fr;gap:22px}
    .feature-article{overflow:hidden}
    .feature-article img{height:260px;width:100%;object-fit:cover}
    .feature-body{padding:26px}
    .side-stack{display:grid;gap:18px}
    .media-card{display:grid;grid-template-columns:130px 1fr;gap:16px;padding:14px;align-items:center}
    .media-card img{height:108px;width:130px;object-fit:cover;border-radius:18px}
    .faq-grid{display:grid;grid-template-columns:.82fr 1.18fr;gap:26px;align-items:start}
    details{
      background:#fff;border:1px solid var(--border-soft);border-radius:20px;padding:0;
      box-shadow:0 12px 30px rgba(15,23,42,.05);overflow:hidden;
    }
    details+details{margin-top:12px}
    summary{list-style:none;padding:18px 20px;font-weight:800;color:var(--text);cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px}
    summary::-webkit-details-marker{display:none}
    summary:after{content:"+";width:28px;height:28px;border-radius:999px;background:var(--primary-soft);color:var(--primary);display:flex;align-items:center;justify-content:center;font-weight:900}
    details[open]{background:#F8FBFF;border-color:#BFDBFE}
    details[open] summary:after{content:"−"}
    details p{padding:0 20px 18px;margin:0;color:var(--muted)}
    .cta-section{padding:84px 0 98px}
    .cta-wrap{
      display:grid;grid-template-columns:.9fr 1.1fr;gap:28px;align-items:center;
      padding:34px;border-radius:34px;background:linear-gradient(135deg,#EAF3FF,#FFFFFF 58%,#ECFEFF);
      border:1px solid #BFDBFE;box-shadow:var(--shadow);
    }
    .form-card{background:#fff;border:1px solid var(--border-soft);border-radius:28px;padding:26px;box-shadow:0 18px 44px rgba(15,23,42,.08)}
    .form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
    .field{display:grid;gap:7px}
    .field.full{grid-column:1/-1}
    label{font-weight:750;color:#334155;font-size:14px}
    input,select,textarea{
      width:100%;border:1px solid var(--border);background:#fff;border-radius:16px;
      min-height:48px;padding:12px 14px;color:var(--text);transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
    }
    textarea{min-height:108px;resize:vertical}
    input:focus,select:focus,textarea:focus{border-color:#60A5FA;box-shadow:0 0 0 4px rgba(37,99,235,.10);outline:none;background:#FCFDFF}
    .hint{font-size:13px;color:var(--weak);margin-top:10px}
    .site-footer{background:#EEF4FA;border-top:1px solid var(--border);padding:54px 0 24px;color:#334155}
    .footer-grid{display:grid;grid-template-columns:1.2fr .8fr .8fr .9fr;gap:28px}
    .footer-title{font-weight:850;color:var(--text);margin-bottom:12px}
    .footer-links{display:grid;gap:9px}
    .footer-links a{color:#475569;font-weight:650;transition:color .2s ease,transform .2s ease}
    .footer-links a:hover{color:var(--primary);transform:translateX(2px)}
    .copyright{border-top:1px solid #DDE7F3;margin-top:34px;padding-top:18px;font-size:13px;color:#64748B;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}
    .soft-divider{height:1px;background:linear-gradient(90deg,transparent,#DDE7F3,transparent);margin:4px 0 0}
    @media (max-width:1024px){
      .desktop-nav,.nav-cta{display:none}
      .menu-toggle{display:flex}
      .nav-wrap{height:72px}
      .hero-grid,.matrix,.content-layout,.faq-grid,.cta-wrap{grid-template-columns:1fr}
      .board-grid{grid-template-columns:repeat(2,1fr)}
      .hero{padding-top:62px}
      .status-card{position:relative;left:auto;right:auto;top:auto;margin:-54px 12px 0}
      .metric-mini{margin-top:16px}
      .footer-grid{grid-template-columns:repeat(2,1fr)}
    }
    @media (max-width:768px){
      .site-container{width:min(100% - 28px,var(--container))}
      .section{padding:62px 0}
      .section-head{display:block}
      .board-grid,.matrix-list,.compare-wrap,.form-grid{grid-template-columns:1fr}
      .metric-mini{grid-template-columns:1fr}
      .media-card{grid-template-columns:92px 1fr}
      .media-card img{width:92px;height:92px}
      .hero-actions .btn-primary,.hero-actions .btn-secondary{width:100%}
      .cta-wrap{padding:22px;border-radius:26px}
      .footer-grid{grid-template-columns:1fr}
      h1{letter-spacing:-.035em}
    }
    @media (max-width:520px){
      .brand-title{font-size:16px}
      .brand-sub{display:none}
      .hero{padding:48px 0 46px}
      .hero-image{height:180px}
      .board-number{font-size:36px}
      .feature-article img{height:200px}
      .copyright{display:block}
    }

/* roulang page: category1 */
:root{
      --primary:#2563eb;
      --primary-dark:#1d4ed8;
      --primary-soft:#eff6ff;
      --accent:#0ea5a4;
      --accent-soft:#ecfeff;
      --ink:#102033;
      --text:#475569;
      --muted:#64748b;
      --line:#dde7f3;
      --line-strong:#cbd5e1;
      --bg:#f8fbff;
      --card:#ffffff;
      --footer:#eef4fa;
      --radius:22px;
      --radius-lg:30px;
      --shadow:0 18px 45px rgba(15,23,42,.08);
      --shadow-hover:0 24px 60px rgba(37,99,235,.14);
      --container:1200px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans CJK SC",Arial,sans-serif;
      color:var(--text);
      background:
        radial-gradient(circle at 8% 8%, rgba(37,99,235,.08), transparent 30%),
        linear-gradient(180deg,#fbfdff 0%, var(--bg) 48%, #fff 100%);
      line-height:1.7;
      overflow-x:hidden;
    }
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%;height:auto}
    button,input,textarea,select{font:inherit}
    button{cursor:pointer}
    ::selection{background:rgba(37,99,235,.16);color:var(--ink)}
    .site-container{
      width:min(var(--container), calc(100% - 40px));
      margin-inline:auto;
    }
    .site-header{
      position:sticky;
      top:0;
      z-index:50;
      background:rgba(255,255,255,.92);
      backdrop-filter:blur(16px);
      border-bottom:1px solid rgba(221,231,243,.9);
      box-shadow:0 10px 30px rgba(15,23,42,.04);
    }
    .nav-wrap{
      height:78px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:22px;
    }
    .brand{
      display:inline-flex;
      align-items:center;
      gap:12px;
      min-width:max-content;
    }
    .brand-mark{
      width:42px;
      height:42px;
      border-radius:16px;
      background:
        linear-gradient(135deg,#2563eb,#38bdf8);
      position:relative;
      box-shadow:0 14px 30px rgba(37,99,235,.22);
    }
    .brand-mark:before{
      content:"";
      position:absolute;
      inset:10px 9px 9px 10px;
      border:2px solid rgba(255,255,255,.78);
      border-left-color:transparent;
      border-bottom-color:transparent;
      border-radius:50%;
      transform:rotate(38deg);
    }
    .brand-mark:after{
      content:"";
      position:absolute;
      right:10px;
      top:11px;
      width:9px;
      height:9px;
      border-radius:999px;
      background:#fff;
    }
    .brand-title{
      display:block;
      color:var(--ink);
      font-weight:800;
      font-size:18px;
      letter-spacing:.2px;
      line-height:1.1;
    }
    .brand-sub{
      display:block;
      margin-top:3px;
      color:var(--muted);
      font-size:12px;
      line-height:1.1;
    }
    .desktop-nav{
      display:flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      flex:1;
    }
    .nav-link{
      color:#334155;
      font-size:15px;
      font-weight:650;
      padding:10px 15px;
      border-radius:999px;
      transition:.22s ease;
      outline:none;
    }
    .nav-link:hover{
      color:var(--primary);
      background:#f1f7ff;
    }
    .nav-link.active{
      color:var(--primary);
      background:var(--primary-soft);
      box-shadow:inset 0 0 0 1px rgba(37,99,235,.12);
    }
    .nav-cta,.btn-primary,.btn-secondary,.btn-ghost{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      min-height:46px;
      border-radius:999px;
      font-weight:750;
      font-size:15px;
      transition:transform .22s ease, box-shadow .22s ease, background .22s ease, border-color .22s ease, color .22s ease;
      outline:none;
    }
    .nav-cta,.btn-primary{
      color:#fff;
      background:linear-gradient(135deg,var(--primary),#3b82f6);
      box-shadow:0 14px 30px rgba(37,99,235,.22);
      padding:12px 20px;
    }
    .nav-cta:hover,.btn-primary:hover{
      transform:translateY(-2px);
      background:linear-gradient(135deg,var(--primary-dark),#2563eb);
      box-shadow:0 20px 40px rgba(37,99,235,.28);
    }
    .btn-secondary{
      color:var(--primary);
      background:#fff;
      border:1px solid rgba(37,99,235,.22);
      padding:12px 20px;
      box-shadow:0 10px 26px rgba(15,23,42,.05);
    }
    .btn-secondary:hover{
      transform:translateY(-2px);
      background:#f5f9ff;
      border-color:rgba(37,99,235,.42);
    }
    .btn-ghost{
      color:#334155;
      background:transparent;
      padding:10px 14px;
    }
    .btn-ghost:hover{
      color:var(--primary);
      background:#eef6ff;
    }
    .nav-cta:focus-visible,.btn-primary:focus-visible,.btn-secondary:focus-visible,.btn-ghost:focus-visible,.nav-link:focus-visible,.menu-toggle:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible,summary:focus-visible{
      outline:3px solid rgba(37,99,235,.22);
      outline-offset:3px;
    }
    .menu-toggle{
      width:46px;
      height:46px;
      border:1px solid var(--line);
      background:#fff;
      border-radius:16px;
      display:none;
      align-items:center;
      justify-content:center;
      box-shadow:0 10px 24px rgba(15,23,42,.05);
    }
    .menu-line,.menu-line:before,.menu-line:after{
      display:block;
      width:20px;
      height:2px;
      border-radius:999px;
      background:#1e293b;
      position:relative;
      transition:.22s ease;
    }
    .menu-line:before,.menu-line:after{
      content:"";
      position:absolute;
      left:0;
    }
    .menu-line:before{top:-7px}
    .menu-line:after{top:7px}
    .menu-toggle[aria-expanded="true"] .menu-line{background:transparent}
    .menu-toggle[aria-expanded="true"] .menu-line:before{top:0;transform:rotate(45deg)}
    .menu-toggle[aria-expanded="true"] .menu-line:after{top:0;transform:rotate(-45deg)}
    .mobile-panel{
      display:none;
      padding:0 0 18px;
    }
    .mobile-panel a{
      display:flex;
      align-items:center;
      min-height:46px;
      border-radius:16px;
      padding:10px 14px;
      color:#334155;
      font-weight:700;
    }
    .mobile-panel a:hover,.mobile-panel a.active{
      color:var(--primary);
      background:var(--primary-soft);
    }
    .section{
      padding:84px 0;
    }
    .section-tight{
      padding:58px 0;
    }
    .eyebrow,.tag,.pill{
      display:inline-flex;
      align-items:center;
      gap:7px;
      border-radius:999px;
      font-size:13px;
      font-weight:750;
      line-height:1;
    }
    .eyebrow{
      color:var(--primary);
      background:#eaf3ff;
      border:1px solid rgba(37,99,235,.14);
      padding:9px 13px;
    }
    .tag{
      color:#0f766e;
      background:var(--accent-soft);
      border:1px solid rgba(14,165,164,.14);
      padding:8px 11px;
    }
    .pill{
      color:#334155;
      background:#fff;
      border:1px solid var(--line);
      padding:9px 12px;
      box-shadow:0 10px 22px rgba(15,23,42,.04);
    }
    .hero-guide{
      position:relative;
      padding:74px 0 54px;
      overflow:hidden;
    }
    .hero-guide:before{
      content:"";
      position:absolute;
      inset:0;
      background:
        linear-gradient(90deg,rgba(248,251,255,.98) 0%,rgba(248,251,255,.9) 48%,rgba(248,251,255,.72) 100%),
        url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
      z-index:-2;
    }
    .hero-guide:after{
      content:"";
      position:absolute;
      right:-120px;
      top:90px;
      width:360px;
      height:360px;
      border-radius:999px;
      background:radial-gradient(circle,rgba(14,165,164,.12),transparent 68%);
      z-index:-1;
    }
    .breadcrumb{
      display:flex;
      align-items:center;
      gap:8px;
      color:#64748b;
      font-size:14px;
      margin-bottom:22px;
    }
    .breadcrumb a{
      color:#475569;
      font-weight:650;
    }
    .breadcrumb a:hover{color:var(--primary)}
    h1,h2,h3{
      color:var(--ink);
      margin:0;
      letter-spacing:-.02em;
    }
    h1{
      font-size:clamp(36px,5vw,58px);
      line-height:1.12;
      max-width:780px;
      font-weight:850;
    }
    h2{
      font-size:clamp(29px,3.4vw,40px);
      line-height:1.18;
      font-weight:820;
    }
    h3{
      font-size:21px;
      line-height:1.28;
      font-weight:780;
    }
    .lead{
      margin-top:20px;
      max-width:720px;
      color:#475569;
      font-size:18px;
      line-height:1.75;
    }
    .hero-panel{
      background:rgba(255,255,255,.92);
      border:1px solid rgba(221,231,243,.95);
      border-radius:var(--radius-lg);
      padding:18px;
      box-shadow:var(--shadow);
    }
    .hero-panel img{
      width:100%;
      aspect-ratio:16/10;
      object-fit:cover;
      border-radius:24px;
      box-shadow:0 18px 36px rgba(15,23,42,.08);
    }
    .status-strip{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:10px;
      margin-top:14px;
    }
    .status-mini{
      border:1px solid var(--line);
      background:#fbfdff;
      border-radius:18px;
      padding:13px;
    }
    .status-mini strong{
      display:block;
      color:var(--ink);
      font-size:18px;
      line-height:1.1;
    }
    .status-mini span{
      display:block;
      color:var(--muted);
      font-size:12px;
      margin-top:4px;
    }
    .section-head{
      display:flex;
      align-items:flex-end;
      justify-content:space-between;
      gap:28px;
      margin-bottom:34px;
    }
    .section-head p{
      max-width:610px;
      color:var(--muted);
      margin:0;
      font-size:16px;
    }
    .card{
      background:var(--card);
      border:1px solid rgba(148,163,184,.24);
      border-radius:var(--radius);
      box-shadow:0 12px 34px rgba(15,23,42,.055);
      transition:transform .24s ease, box-shadow .24s ease, border-color .24s ease;
    }
    .card:hover{
      transform:translateY(-3px);
      border-color:rgba(37,99,235,.28);
      box-shadow:var(--shadow-hover);
    }
    .metric-row{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:18px;
    }
    .metric-card{
      padding:24px;
    }
    .metric-card .num{
      display:flex;
      align-items:baseline;
      gap:5px;
      color:var(--primary);
      font-size:36px;
      font-weight:850;
      line-height:1;
      margin:14px 0 10px;
    }
    .metric-card .num small{
      font-size:15px;
      color:var(--accent);
      font-weight:800;
    }
    .main-layout{
      display:grid;
      grid-template-columns:330px minmax(0,1fr);
      gap:28px;
      align-items:start;
    }
    .side-stack{
      position:sticky;
      top:104px;
      display:grid;
      gap:18px;
    }
    .side-card{
      padding:24px;
    }
    .side-card p{
      margin:12px 0 0;
      color:var(--muted);
    }
    .tag-cloud{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin-top:16px;
    }
    .quick-list{
      display:grid;
      gap:12px;
      margin-top:16px;
    }
    .quick-list a{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      padding:13px 14px;
      border:1px solid var(--line);
      border-radius:16px;
      color:#334155;
      font-weight:700;
      background:#fbfdff;
      transition:.22s ease;
    }
    .quick-list a:hover{
      color:var(--primary);
      border-color:rgba(37,99,235,.26);
      background:var(--primary-soft);
      transform:translateX(2px);
    }
    .content-stack{
      display:grid;
      gap:18px;
    }
    .guide-card{
      display:grid;
      grid-template-columns:178px 1fr;
      gap:22px;
      padding:18px;
      overflow:hidden;
    }
    .guide-card.featured{
      background:linear-gradient(135deg,#ffffff 0%,#eef6ff 100%);
      border-color:rgba(37,99,235,.22);
    }
    .guide-cover{
      border-radius:20px;
      overflow:hidden;
      min-height:168px;
      background:#eaf3ff;
    }
    .guide-cover img{
      width:100%;
      height:100%;
      min-height:168px;
      object-fit:cover;
      transition:transform .3s ease;
    }
    .guide-card:hover .guide-cover img{
      transform:scale(1.04);
    }
    .guide-body{
      padding:6px 6px 4px 0;
    }
    .guide-meta{
      display:flex;
      flex-wrap:wrap;
      align-items:center;
      gap:10px;
      margin-bottom:10px;
    }
    .guide-meta span{
      color:var(--muted);
      font-size:13px;
    }
    .guide-body p{
      margin:10px 0 0;
      color:#526173;
    }
    .point-list{
      display:grid;
      gap:8px;
      margin:14px 0 0;
      padding:0;
      list-style:none;
    }
    .point-list li{
      display:flex;
      gap:9px;
      color:#475569;
      font-size:15px;
    }
    .point-list li:before{
      content:"";
      width:7px;
      height:7px;
      margin-top:9px;
      flex:0 0 auto;
      border-radius:999px;
      background:var(--accent);
      box-shadow:0 0 0 4px rgba(14,165,164,.1);
    }
    .guide-actions{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:14px;
      margin-top:16px;
      border-top:1px solid var(--line);
      padding-top:14px;
    }
    .read-time{
      color:var(--muted);
      font-size:13px;
    }
    .inline-link{
      color:var(--primary);
      font-weight:780;
      display:inline-flex;
      align-items:center;
      gap:6px;
    }
    .inline-link:hover{
      color:var(--primary-dark);
      text-decoration:underline;
      text-underline-offset:4px;
    }
    .notice-grid{
      display:grid;
      grid-template-columns:1.05fr .95fr;
      gap:24px;
      align-items:stretch;
    }
    .notice-card{
      padding:28px;
      background:linear-gradient(180deg,#fff,#f8fbff);
    }
    .notice-card strong{
      color:var(--ink);
    }
    .timeline{
      display:grid;
      gap:14px;
      margin-top:18px;
    }
    .timeline-item{
      display:grid;
      grid-template-columns:86px 1fr;
      gap:14px;
      padding:14px;
      border:1px solid var(--line);
      border-radius:18px;
      background:#fff;
    }
    .timeline-item span{
      color:var(--primary);
      font-weight:850;
    }
    .timeline-item p{
      margin:0;
      color:#526173;
    }
    .faq-wrap{
      display:grid;
      grid-template-columns:.82fr 1.18fr;
      gap:28px;
      align-items:start;
    }
    details{
      background:#fff;
      border:1px solid rgba(148,163,184,.24);
      border-radius:20px;
      padding:0;
      box-shadow:0 10px 26px rgba(15,23,42,.045);
      overflow:hidden;
    }
    details + details{margin-top:14px}
    summary{
      list-style:none;
      cursor:pointer;
      padding:19px 22px;
      color:var(--ink);
      font-weight:780;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
    }
    summary::-webkit-details-marker{display:none}
    summary:after{
      content:"+";
      width:28px;
      height:28px;
      border-radius:999px;
      background:var(--primary-soft);
      color:var(--primary);
      display:grid;
      place-items:center;
      flex:0 0 auto;
      font-weight:850;
    }
    details[open]{
      border-color:rgba(37,99,235,.24);
      background:#fbfdff;
    }
    details[open] summary{
      background:var(--primary-soft);
    }
    details[open] summary:after{
      content:"−";
      background:#fff;
    }
    details p{
      margin:0;
      padding:18px 22px 22px;
      color:#526173;
      border-top:1px solid rgba(221,231,243,.9);
    }
    .cta-band{
      position:relative;
      overflow:hidden;
      border-radius:32px;
      padding:36px;
      background:
        radial-gradient(circle at 90% 15%,rgba(14,165,164,.16),transparent 30%),
        linear-gradient(135deg,#eaf3ff 0%,#ffffff 56%,#f4fbff 100%);
      border:1px solid rgba(37,99,235,.14);
      box-shadow:var(--shadow);
    }
    .cta-band:before{
      content:"";
      position:absolute;
      inset:auto -40px -70px auto;
      width:240px;
      height:240px;
      border-radius:999px;
      background:rgba(37,99,235,.08);
    }
    .cta-content{
      position:relative;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:28px;
    }
    .cta-content p{
      margin:12px 0 0;
      max-width:680px;
      color:#526173;
    }
    .site-footer{
      background:var(--footer);
      border-top:1px solid rgba(203,213,225,.75);
      padding:58px 0 28px;
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.4fr .75fr .85fr 1fr;
      gap:32px;
      align-items:start;
    }
    .footer-title{
      color:var(--ink);
      font-weight:820;
      margin-bottom:14px;
    }
    .footer-links{
      display:grid;
      gap:10px;
    }
    .footer-links a{
      color:#526173;
      transition:.2s ease;
    }
    .footer-links a:hover{
      color:var(--primary);
      transform:translateX(2px);
    }
    .copyright{
      margin-top:34px;
      padding-top:20px;
      border-top:1px solid rgba(148,163,184,.24);
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
      color:#64748b;
      font-size:14px;
    }
    @media (max-width:1024px){
      .desktop-nav,.nav-cta{display:none}
      .menu-toggle{display:flex}
      .mobile-panel.open{display:grid;gap:6px}
      .metric-row{grid-template-columns:1fr}
      .main-layout{grid-template-columns:1fr}
      .side-stack{position:static}
      .notice-grid,.faq-wrap{grid-template-columns:1fr}
      .footer-grid{grid-template-columns:1fr 1fr}
      .cta-content{align-items:flex-start;flex-direction:column}
    }
    @media (max-width:768px){
      .site-container{width:min(100% - 28px,var(--container))}
      .nav-wrap{height:70px}
      .brand-title{font-size:16px}
      .brand-mark{width:38px;height:38px;border-radius:14px}
      .section{padding:64px 0}
      .section-tight{padding:46px 0}
      .hero-guide{padding:46px 0 40px}
      .section-head{display:grid;gap:12px;margin-bottom:24px}
      .status-strip{grid-template-columns:1fr}
      .guide-card{grid-template-columns:1fr;padding:16px}
      .guide-body{padding:0}
      .guide-actions{align-items:flex-start;flex-direction:column}
      .timeline-item{grid-template-columns:1fr;gap:6px}
      .cta-band{padding:26px 20px;border-radius:26px}
      .footer-grid{grid-template-columns:1fr}
      .copyright{align-items:flex-start;flex-direction:column}
    }
    @media (max-width:520px){
      h1{font-size:34px}
      .lead{font-size:16px}
      .breadcrumb{flex-wrap:wrap}
      .hero-panel{padding:12px;border-radius:24px}
      .metric-card,.side-card,.notice-card{padding:20px}
      .btn-primary,.btn-secondary{width:100%}
      .guide-meta{gap:8px}
      summary{padding:17px 18px}
      details p{padding:16px 18px 20px}
    }