/* roulang page: index */
:root{
      --bg:#f7f5ef;
      --bg-soft:#fffaf0;
      --surface:#ffffff;
      --surface-2:#f3efe6;
      --ink:#111827;
      --muted:#64748b;
      --soft-text:#475569;
      --line:#e6dfd2;
      --line-dark:#d8cdbb;
      --brand:#111827;
      --brand-2:#c47b32;
      --brand-3:#7c3aed;
      --green:#12805c;
      --red:#c2410c;
      --blue:#2563eb;
      --shadow:0 20px 60px rgba(17,24,39,.10);
      --shadow-sm:0 10px 30px rgba(17,24,39,.08);
      --radius:24px;
      --radius-sm:14px;
      --radius-lg:34px;
      --container:1180px;
      --header-h:72px;
      --aside-w:248px;
      --ease:cubic-bezier(.2,.8,.2,1);
    }

    *{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",Arial,sans-serif;
      color:var(--ink);
      background:
        radial-gradient(circle at 12% 0%, rgba(196,123,50,.14), transparent 30%),
        radial-gradient(circle at 88% 8%, rgba(124,58,237,.10), transparent 28%),
        linear-gradient(180deg,#fbf8f1 0%,var(--bg) 38%,#fff 100%);
      line-height:1.7;
      -webkit-font-smoothing:antialiased;
      text-rendering:optimizeLegibility;
    }

    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input,select,textarea{font:inherit}
    button{cursor:pointer}
    ::selection{background:#111827;color:#fff}

    .skip-link{
      position:absolute;
      left:16px;
      top:-60px;
      z-index:2000;
      padding:10px 14px;
      border-radius:12px;
      background:var(--ink);
      color:#fff;
      transition:top .2s var(--ease);
    }
    .skip-link:focus{top:12px;outline:none}

    .topbar{
      position:sticky;
      top:0;
      z-index:1000;
      height:var(--header-h);
      background:rgba(255,250,240,.84);
      backdrop-filter:blur(18px);
      border-bottom:1px solid rgba(216,205,187,.72);
    }
    .topbar-inner{
      max-width:1440px;
      margin:0 auto;
      height:100%;
      padding:0 24px;
      display:flex;
      align-items:center;
      gap:18px;
    }
    .brand{
      display:flex;
      align-items:center;
      gap:12px;
      min-width:max-content;
      font-weight:900;
      letter-spacing:-.03em;
    }
    .brand-mark{
      width:38px;
      height:38px;
      border-radius:13px;
      display:grid;
      place-items:center;
      background:linear-gradient(135deg,#111827 0%,#2b3445 52%,#c47b32 100%);
      color:#fff;
      box-shadow:0 12px 28px rgba(17,24,39,.18);
      position:relative;
      overflow:hidden;
    }
    .brand-mark:after{
      content:"";
      width:18px;
      height:18px;
      border:2px solid rgba(255,255,255,.78);
      border-radius:50%;
      position:absolute;
      right:-4px;
      bottom:-4px;
    }
    .brand-text{
      font-size:17px;
      line-height:1.15;
    }
    .doc-search{
      flex:1;
      max-width:520px;
      position:relative;
      margin-left:8px;
    }
    .doc-search input{
      width:100%;
      height:42px;
      border:1px solid var(--line);
      border-radius:999px;
      background:rgba(255,255,255,.78);
      color:var(--ink);
      padding:0 44px 0 44px;
      outline:none;
      transition:border-color .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease);
    }
    .doc-search input:focus{
      border-color:rgba(17,24,39,.55);
      background:#fff;
      box-shadow:0 0 0 4px rgba(196,123,50,.16);
    }
    .doc-search .icon{
      position:absolute;
      left:16px;
      top:50%;
      transform:translateY(-50%);
      color:#94a3b8;
      font-size:15px;
    }
    .nav-main{
      display:flex;
      align-items:center;
      gap:6px;
      margin-left:auto;
    }
    .nav-main a{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      height:40px;
      padding:0 15px;
      border-radius:999px;
      color:#334155;
      font-weight:750;
      font-size:14px;
      transition:background .2s var(--ease),color .2s var(--ease),transform .2s var(--ease);
    }
    .nav-main a:hover{
      background:#fff;
      color:var(--ink);
      transform:translateY(-1px);
    }
    .nav-main a.active{
      background:var(--ink);
      color:#fff;
      box-shadow:0 10px 24px rgba(17,24,39,.16);
    }
    .top-meta{
      display:flex;
      align-items:center;
      gap:8px;
      margin-left:4px;
    }
    .pill{
      display:inline-flex;
      align-items:center;
      gap:7px;
      min-height:34px;
      padding:7px 11px;
      border:1px solid var(--line);
      border-radius:999px;
      background:rgba(255,255,255,.70);
      color:#475569;
      font-size:13px;
      font-weight:700;
      white-space:nowrap;
    }
    .menu-toggle{
      display:none;
      width:42px;
      height:42px;
      border:1px solid var(--line);
      border-radius:14px;
      background:#fff;
      color:var(--ink);
    }
    .menu-toggle:focus-visible,
    .btn:focus-visible,
    .faq-question:focus-visible,
    .side-toc a:focus-visible,
    .article-link:focus-visible{
      outline:3px solid rgba(196,123,50,.28);
      outline-offset:3px;
    }

    .layout{
      max-width:1440px;
      margin:0 auto;
      display:grid;
      grid-template-columns:var(--aside-w) minmax(0,1fr);
      gap:0;
    }
    .side-toc{
      position:sticky;
      top:var(--header-h);
      height:calc(100vh - var(--header-h));
      padding:28px 20px 28px 24px;
      border-right:1px solid rgba(216,205,187,.72);
      overflow:auto;
      background:linear-gradient(180deg,rgba(255,250,240,.55),rgba(255,255,255,.28));
    }
    .toc-title{
      font-size:13px;
      font-weight:900;
      color:#0f172a;
      margin:0 0 14px;
      letter-spacing:.08em;
    }
    .side-toc a{
      display:flex;
      align-items:center;
      gap:10px;
      padding:10px 12px;
      margin:4px 0;
      border-radius:14px;
      color:#64748b;
      font-size:14px;
      font-weight:700;
      transition:background .2s var(--ease),color .2s var(--ease),transform .2s var(--ease);
    }
    .side-toc a:before{
      content:"";
      width:6px;
      height:6px;
      border-radius:50%;
      background:#cbd5e1;
      transition:background .2s var(--ease),transform .2s var(--ease);
    }
    .side-toc a:hover{
      color:var(--ink);
      background:rgba(255,255,255,.88);
      transform:translateX(2px);
    }
    .side-toc a:hover:before{background:var(--brand-2);transform:scale(1.25)}
    .side-card{
      margin-top:24px;
      padding:16px;
      border:1px solid var(--line);
      border-radius:20px;
      background:#fff;
      box-shadow:var(--shadow-sm);
    }
    .side-card strong{
      display:block;
      font-size:14px;
      margin-bottom:6px;
    }
    .side-card p{
      margin:0;
      color:var(--muted);
      font-size:13px;
      line-height:1.65;
    }

    .page{
      min-width:0;
      padding-bottom:0;
    }
    .container{
      width:min(var(--container),calc(100% - 56px));
      margin:0 auto;
    }
    .section{
      padding:78px 0;
      position:relative;
    }
    .section.compact{padding:54px 0}
    .section-kicker{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:7px 12px;
      border-radius:999px;
      background:#fff;
      border:1px solid var(--line);
      color:#7c4a1f;
      font-weight:900;
      font-size:13px;
      box-shadow:0 8px 22px rgba(17,24,39,.05);
    }
    .section-kicker:before{
      content:"";
      width:7px;
      height:7px;
      border-radius:50%;
      background:var(--brand-2);
      box-shadow:0 0 0 5px rgba(196,123,50,.13);
    }
    .section-head{
      display:grid;
      grid-template-columns:minmax(0,1fr) minmax(260px,420px);
      gap:28px;
      align-items:end;
      margin-bottom:30px;
    }
    .section-head h2{
      margin:14px 0 0;
      font-size:clamp(28px,3.4vw,46px);
      line-height:1.12;
      letter-spacing:-.055em;
    }
    .section-head p{
      margin:0;
      color:var(--soft-text);
      font-size:16px;
    }

    .hero{
      padding:48px 0 70px;
    }
    .hero-panel{
      min-height:620px;
      border:1px solid rgba(216,205,187,.85);
      border-radius:var(--radius-lg);
      background:
        linear-gradient(135deg,rgba(255,255,255,.94),rgba(255,250,240,.84)),
        radial-gradient(circle at 80% 18%,rgba(196,123,50,.16),transparent 30%);
      box-shadow:var(--shadow);
      overflow:hidden;
      position:relative;
    }
    .hero-panel:before{
      content:"";
      position:absolute;
      inset:0;
      background-image:
        linear-gradient(rgba(17,24,39,.035) 1px, transparent 1px),
        linear-gradient(90deg, rgba(17,24,39,.035) 1px, transparent 1px);
      background-size:34px 34px;
      mask-image:linear-gradient(180deg,rgba(0,0,0,.60),transparent 70%);
      pointer-events:none;
    }
    .hero-grid{
      position:relative;
      display:grid;
      grid-template-columns:minmax(0,1.04fr) minmax(360px,.96fr);
      gap:34px;
      padding:44px;
      align-items:stretch;
    }
    .hero-copy{
      display:flex;
      flex-direction:column;
      justify-content:space-between;
      min-height:532px;
    }
    .hero-topline{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      align-items:center;
      margin-bottom:28px;
    }
    .badge{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:7px 12px;
      border-radius:999px;
      border:1px solid var(--line);
      background:rgba(255,255,255,.82);
      color:#475569;
      font-weight:800;
      font-size:13px;
    }
    .badge.dark{
      background:var(--ink);
      color:#fff;
      border-color:var(--ink);
    }
    .hero h1{
      margin:0;
      max-width:780px;
      font-size:clamp(38px,6vw,76px);
      line-height:.98;
      letter-spacing:-.075em;
    }
    .hero h1 span{
      color:var(--brand-2);
      white-space:nowrap;
    }
    .hero-desc{
      max-width:720px;
      margin:24px 0 0;
      color:#334155;
      font-size:18px;
      line-height:1.85;
    }
    .hero-actions{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      margin-top:30px;
    }
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:9px;
      min-height:48px;
      padding:0 18px;
      border:1px solid transparent;
      border-radius:999px;
      font-weight:900;
      transition:transform .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease),border-color .22s var(--ease),color .22s var(--ease);
      user-select:none;
    }
    .btn:hover{transform:translateY(-2px)}
    .btn:active{transform:translateY(0) scale(.99)}
    .btn-primary{
      background:var(--ink);
      color:#fff;
      box-shadow:0 14px 34px rgba(17,24,39,.22);
    }
    .btn-primary:hover{box-shadow:0 18px 42px rgba(17,24,39,.28)}
    .btn-secondary{
      background:#fff;
      color:var(--ink);
      border-color:var(--line);
      box-shadow:0 10px 26px rgba(17,24,39,.07);
    }
    .btn-secondary:hover{
      border-color:#c9b79e;
      box-shadow:0 14px 32px rgba(17,24,39,.10);
    }
    .btn-ghost{
      background:transparent;
      color:#334155;
      border-color:rgba(100,116,139,.25);
    }
    .btn-ghost:hover{
      background:rgba(255,255,255,.72);
      color:var(--ink);
    }
    .hero-metrics{
      display:grid;
      grid-template-columns:repeat(3,minmax(0,1fr));
      gap:12px;
      margin-top:34px;
      max-width:760px;
    }
    .metric{
      padding:18px;
      border:1px solid var(--line);
      border-radius:20px;
      background:rgba(255,255,255,.72);
      backdrop-filter:blur(12px);
    }
    .metric strong{
      display:block;
      font-size:26px;
      line-height:1;
      letter-spacing:-.04em;
    }
    .metric span{
      display:block;
      margin-top:8px;
      color:var(--muted);
      font-size:13px;
      font-weight:700;
    }

    .lead-stage{
      display:grid;
      grid-template-rows:auto 1fr;
      gap:16px;
    }
    .whitepaper{
      border-radius:30px;
      background:
        linear-gradient(145deg,#1f2937,#111827 58%,#3b2415);
      color:#fff;
      min-height:345px;
      padding:26px;
      position:relative;
      overflow:hidden;
      box-shadow:0 28px 70px rgba(17,24,39,.22);
    }
    .whitepaper:before{
      content:"";
      position:absolute;
      width:220px;
      height:220px;
      border-radius:50%;
      right:-70px;
      top:-70px;
      background:rgba(196,123,50,.30);
      filter:blur(2px);
    }
    .whitepaper:after{
      content:"";
      position:absolute;
      inset:auto 24px 24px auto;
      width:96px;
      height:132px;
      border:1px solid rgba(255,255,255,.18);
      border-radius:18px;
      background:linear-gradient(180deg,rgba(255,255,255,.13),rgba(255,255,255,.04));
      transform:rotate(-4deg);
    }
    .paper-label{
      position:relative;
      display:inline-flex;
      padding:7px 10px;
      border-radius:999px;
      background:rgba(255,255,255,.12);
      border:1px solid rgba(255,255,255,.18);
      font-size:12px;
      font-weight:900;
      color:#fdebd4;
    }
    .whitepaper h2{
      position:relative;
      margin:54px 0 14px;
      max-width:360px;
      font-size:36px;
      line-height:1.08;
      letter-spacing:-.055em;
    }
    .whitepaper p{
      position:relative;
      max-width:360px;
      margin:0;
      color:#dbe4ef;
      font-size:14px;
    }
    .paper-chapters{
      position:relative;
      display:grid;
      grid-template-columns:repeat(2,minmax(0,1fr));
      gap:10px;
      margin-top:26px;
      max-width:390px;
    }
    .chapter{
      padding:11px 12px;
      border-radius:14px;
      background:rgba(255,255,255,.09);
      border:1px solid rgba(255,255,255,.12);
      color:#fff;
      font-size:13px;
      font-weight:800;
    }
    .lead-form{
      border:1px solid var(--line);
      border-radius:28px;
      background:rgba(255,255,255,.88);
      padding:22px;
      box-shadow:var(--shadow-sm);
    }
    .lead-form h3{
      margin:0 0 6px;
      font-size:20px;
      letter-spacing:-.03em;
    }
    .lead-form p{
      margin:0 0 16px;
      color:var(--muted);
      font-size:14px;
    }
    .form-grid{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:12px;
    }
    .field{
      display:flex;
      flex-direction:column;
      gap:6px;
    }
    .field.full{grid-column:1/-1}
    .field label{
      color:#334155;
      font-size:13px;
      font-weight:900;
    }
    .field input,
    .field select{
      height:44px;
      border:1px solid var(--line);
      border-radius:14px;
      background:#fff;
      padding:0 12px;
      outline:none;
      color:var(--ink);
      transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
    }
    .field input:focus,
    .field select:focus{
      border-color:rgba(17,24,39,.62);
      box-shadow:0 0 0 4px rgba(196,123,50,.14);
    }
    .form-note{
      display:flex;
      gap:8px;
      align-items:flex-start;
      margin-top:12px;
      color:#64748b;
      font-size:12px;
      line-height:1.55;
    }
    .form-note .lock{
      color:var(--green);
      font-weight:900;
    }
    .form-message{
      display:none;
      margin-top:12px;
      padding:10px 12px;
      border-radius:14px;
      background:#ecfdf5;
      color:#047857;
      font-weight:800;
      font-size:13px;
    }
    .form-message.show{display:block}

    .news-wrap{
      display:grid;
      grid-template-columns:minmax(0,1.2fr) minmax(320px,.8fr);
      gap:24px;
      align-items:start;
    }
    .news-list{
      border:1px solid var(--line);
      border-radius:var(--radius);
      background:#fff;
      overflow:hidden;
      box-shadow:var(--shadow-sm);
    }
    .article-link{
      display:grid;
      grid-template-columns:112px minmax(0,1fr) auto;
      gap:18px;
      align-items:center;
      padding:20px 22px;
      border-bottom:1px solid var(--line);
      transition:background .2s var(--ease);
    }
    .article-link:last-child{border-bottom:0}
    .article-link:hover{background:#fff8ec}
    .article-date{
      color:#7c4a1f;
      font-weight:950;
      font-size:13px;
    }
    .article-link h3{
      margin:0 0 4px;
      font-size:18px;
      letter-spacing:-.025em;
    }
    .article-link p{
      margin:0;
      color:var(--muted);
      font-size:14px;
    }
    .article-arrow{
      width:34px;
      height:34px;
      border-radius:50%;
      display:grid;
      place-items:center;
      background:#f6efe4;
      color:#7c4a1f;
      transition:transform .2s var(--ease),background .2s var(--ease);
    }
    .article-link:hover .article-arrow{
      transform:translateX(3px);
      background:#f0dfc9;
    }
    .recommend{
      border-radius:var(--radius);
      background:#111827;
      color:#fff;
      padding:26px;
      box-shadow:var(--shadow);
      position:relative;
      overflow:hidden;
    }
    .recommend:after{
      content:"";
      position:absolute;
      right:-80px;
      bottom:-90px;
      width:230px;
      height:230px;
      border-radius:50%;
      background:rgba(196,123,50,.20);
    }
    .recommend h3{
      position:relative;
      margin:0 0 12px;
      font-size:24px;
      letter-spacing:-.04em;
    }
    .recommend p{
      position:relative;
      margin:0;
      color:#cbd5e1;
    }
    .check-list{
      position:relative;
      list-style:none;
      padding:0;
      margin:22px 0 0;
      display:grid;
      gap:11px;
    }
    .check-list li{
      display:flex;
      gap:10px;
      align-items:flex-start;
      padding:12px;
      border-radius:16px;
      background:rgba(255,255,255,.08);
      border:1px solid rgba(255,255,255,.10);
      color:#eef2ff;
      font-size:14px;
      font-weight:750;
    }
    .check-list li:before{
      content:"✓";
      flex:0 0 22px;
      width:22px;
      height:22px;
      display:grid;
      place-items:center;
      border-radius:50%;
      background:#f59e0b;
      color:#111827;
      font-size:12px;
      font-weight:950;
    }

    .service-layout{
      display:grid;
      grid-template-columns:minmax(280px,.78fr) minmax(0,1.22fr);
      gap:24px;
      align-items:stretch;
    }
    .service-intro{
      padding:30px;
      border-radius:var(--radius);
      background:#fff;
      border:1px solid var(--line);
      box-shadow:var(--shadow-sm);
    }
    .service-intro h3{
      margin:0;
      font-size:30px;
      line-height:1.12;
      letter-spacing:-.05em;
    }
    .service-intro p{
      margin:16px 0 0;
      color:var(--soft-text);
    }
    .service-tags{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin-top:24px;
    }
    .tag{
      display:inline-flex;
      padding:7px 11px;
      border-radius:999px;
      background:#f6efe4;
      color:#7c4a1f;
      font-size:13px;
      font-weight:900;
      border:1px solid #ead8c0;
    }
    .solution-grid{
      display:grid;
      grid-template-columns:repeat(2,minmax(0,1fr));
      gap:16px;
    }
    .solution-card{
      padding:24px;
      border-radius:22px;
      background:rgba(255,255,255,.86);
      border:1px solid var(--line);
      box-shadow:0 12px 32px rgba(17,24,39,.06);
      transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
    }
    .solution-card:hover{
      transform:translateY(-4px);
      box-shadow:0 20px 44px rgba(17,24,39,.10);
      border-color:#d5c4ad;
    }
    .solution-icon{
      width:44px;
      height:44px;
      display:grid;
      place-items:center;
      border-radius:16px;
      background:#111827;
      color:#fff;
      margin-bottom:18px;
      font-size:20px;
    }
    .solution-card:nth-child(2) .solution-icon{background:#7c3aed}
    .solution-card:nth-child(3) .solution-icon{background:#c47b32}
    .solution-card:nth-child(4) .solution-icon{background:#12805c}
    .solution-card h3{
      margin:0 0 8px;
      font-size:20px;
      letter-spacing:-.03em;
    }
    .solution-card p{
      margin:0;
      color:var(--muted);
      font-size:14px;
    }

    .app-section{
      background:#111827;
      color:#fff;
      overflow:hidden;
    }
    .app-section .section-kicker{
      background:rgba(255,255,255,.08);
      border-color:rgba(255,255,255,.12);
      color:#f8d7ad;
      box-shadow:none;
    }
    .app-section .section-head p{color:#cbd5e1}
    .app-shell{
      display:grid;
      grid-template-columns:minmax(0,1fr) 390px;
      gap:24px;
      align-items:stretch;
    }
    .steps{
      display:grid;
      gap:14px;
    }
    .step{
      display:grid;
      grid-template-columns:54px minmax(0,1fr);
      gap:16px;
      padding:20px;
      border-radius:22px;
      background:rgba(255,255,255,.07);
      border:1px solid rgba(255,255,255,.10);
      transition:background .2s var(--ease),transform .2s var(--ease);
    }
    .step:hover{
      background:rgba(255,255,255,.10);
      transform:translateX(4px);
    }
    .step-num{
      width:54px;
      height:54px;
      border-radius:18px;
      background:#f59e0b;
      color:#111827;
      display:grid;
      place-items:center;
      font-weight:950;
      font-size:18px;
    }
    .step h3{
      margin:0 0 5px;
      font-size:20px;
      letter-spacing:-.03em;
    }
    .step p{
      margin:0;
      color:#cbd5e1;
      font-size:14px;
    }
    .download-card{
      border-radius:30px;
      padding:28px;
      background:
        linear-gradient(180deg,rgba(255,255,255,.12),rgba(255,255,255,.06));
      border:1px solid rgba(255,255,255,.14);
      box-shadow:0 24px 70px rgba(0,0,0,.20);
    }
    .download-card h3{
      margin:0;
      font-size:28px;
      line-height:1.15;
      letter-spacing:-.05em;
    }
    .download-card p{
      margin:12px 0 22px;
      color:#dbe4ef;
      font-size:14px;
    }
    .qr-box{
      height:180px;
      border-radius:24px;
      background:
        linear-gradient(45deg,rgba(255,255,255,.92) 25%,transparent 25%),
        linear-gradient(-45deg,rgba(255,255,255,.92) 25%,transparent 25%),
        linear-gradient(45deg,transparent 75%,rgba(255,255,255,.92) 75%),
        linear-gradient(-45deg,transparent 75%,rgba(255,255,255,.92) 75%),
        #f59e0b;
      background-size:22px 22px;
      background-position:0 0,0 11px,11px -11px,-11px 0;
      display:grid;
      place-items:center;
      color:#111827;
      font-weight:950;
      text-align:center;
      padding:20px;
    }
    .download-meta{
      display:grid;
      grid-template-columns:repeat(2,minmax(0,1fr));
      gap:10px;
      margin-top:16px;
    }
    .download-meta span{
      padding:10px;
      border-radius:14px;
      background:rgba(255,255,255,.08);
      color:#e2e8f0;
      font-size:13px;
      font-weight:800;
    }

    .security-grid{
      display:grid;
      grid-template-columns:repeat(4,minmax(0,1fr));
      gap:16px;
    }
    .security-card{
      padding:22px;
      border-radius:22px;
      background:#fff;
      border:1px solid var(--line);
      box-shadow:var(--shadow-sm);
    }
    .security-card .shield{
      width:46px;
      height:46px;
      border-radius:16px;
      display:grid;
      place-items:center;
      background:#ecfdf5;
      color:#047857;
      font-size:22px;
      margin-bottom:16px;
    }
    .security-card h3{
      margin:0 0 8px;
      font-size:18px;
      letter-spacing:-.03em;
    }
    .security-card p{
      margin:0;
      color:var(--muted);
      font-size:14px;
    }

    .progress-wrap{
      display:grid;
      grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);
      gap:24px;
      align-items:center;
      border-radius:var(--radius-lg);
      background:#fff;
      border:1px solid var(--line);
      box-shadow:var(--shadow);
      padding:32px;
    }
    .progress-text h2{
      margin:12px 0 0;
      font-size:clamp(28px,3.4vw,44px);
      line-height:1.12;
      letter-spacing:-.055em;
    }
    .progress-text p{
      color:var(--soft-text);
      margin:14px 0 0;
    }
    .progress-box{
      padding:24px;
      border-radius:24px;
      background:#f8f3ea;
      border:1px solid var(--line);
    }
    .progress-row{
      display:flex;
      justify-content:space-between;
      gap:12px;
      font-weight:950;
      margin-bottom:12px;
    }
    .bar{
      height:12px;
      border-radius:999px;
      background:#e8dccb;
      overflow:hidden;
    }
    .bar span{
      display:block;
      height:100%;
      width:72%;
      border-radius:999px;
      background:linear-gradient(90deg,#111827,#c47b32);
      animation:grow 1.1s var(--ease) both;
    }
    @keyframes grow{from{width:18%}to{width:72%}}
    .task-list{
      list-style:none;
      padding:0;
      margin:18px 0 0;
      display:grid;
      gap:10px;
    }
    .task-list li{
      display:flex;
      gap:12px;
      align-items:flex-start;
      padding:13px;
      border-radius:16px;
      background:#fff;
      border:1px solid var(--line);
      color:#475569;
      font-size:14px;
      font-weight:750;
    }
    .task-list li:before{
      content:"";
      width:18px;
      height:18px;
      flex:0 0 18px;
      margin-top:3px;
      border-radius:6px;
      background:#111827;
      box-shadow:inset 0 0 0 5px #fff,0 0 0 1px #111827;
    }
    .task-list li.done:before{
      content:"✓";
      display:grid;
      place-items:center;
      background:#12805c;
      color:#fff;
      box-shadow:none;
      font-size:12px;
      font-weight:950;
    }

    .faq-layout{
      display:grid;
      grid-template-columns:minmax(280px,.72fr) minmax(0,1.28fr);
      gap:26px;
      align-items:start;
    }
    .faq-note{
      position:sticky;
      top:100px;
      padding:28px;
      border-radius:var(--radius);
      background:#fff;
      border:1px solid var(--line);
      box-shadow:var(--shadow-sm);
    }
    .faq-note h2{
      margin:12px 0 0;
      font-size:clamp(28px,3vw,42px);
      line-height:1.13;
      letter-spacing:-.055em;
    }
    .faq-note p{
      margin:14px 0 0;
      color:var(--soft-text);
    }
    .faq-list{
      display:grid;
      gap:12px;
    }
    .faq-item{
      border:1px solid var(--line);
      border-radius:22px;
      background:#fff;
      box-shadow:0 10px 28px rgba(17,24,39,.05);
      overflow:hidden;
    }
    .faq-question{
      width:100%;
      min-height:64px;
      padding:18px 22px;
      border:0;
      background:transparent;
      color:var(--ink);
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
      text-align:left;
      font-weight:950;
      letter-spacing:-.02em;
    }
    .faq-question span:last-child{
      width:28px;
      height:28px;
      border-radius:50%;
      background:#f6efe4;
      color:#7c4a1f;
      display:grid;
      place-items:center;
      flex:0 0 28px;
      transition:transform .2s var(--ease),background .2s var(--ease);
    }
    .faq-answer{
      padding:0 22px 20px;
      color:var(--soft-text);
      font-size:15px;
    }
    .faq-item:hover .faq-question span:last-child{
      transform:rotate(45deg);
      background:#ead8c0;
    }

    .about-panel{
      display:grid;
      grid-template-columns:minmax(0,1fr) 360px;
      gap:24px;
      padding:34px;
      border-radius:var(--radius-lg);
      background:
        linear-gradient(135deg,#fff,#fff7eb);
      border:1px solid var(--line);
      box-shadow:var(--shadow);
      overflow:hidden;
      position:relative;
    }
    .about-panel:after{
      content:"";
      position:absolute;
      right:-100px;
      top:-100px;
      width:240px;
      height:240px;
      border-radius:50%;
      background:rgba(196,123,50,.12);
    }
    .about-copy{position:relative}
    .about-copy h2{
      margin:12px 0 0;
      font-size:clamp(30px,3.6vw,48px);
      line-height:1.1;
      letter-spacing:-.06em;
    }
    .about-copy p{
      margin:16px 0 0;
      color:var(--soft-text);
      max-width:760px;
    }
    .trust-row{
      display:grid;
      grid-template-columns:repeat(3,minmax(0,1fr));
      gap:12px;
      margin-top:24px;
    }
    .trust-item{
      padding:16px;
      border-radius:18px;
      background:#fff;
      border:1px solid var(--line);
    }
    .trust-item strong{
      display:block;
      font-size:22px;
      letter-spacing:-.04em;
    }
    .trust-item span{
      display:block;
      margin-top:4px;
      color:var(--muted);
      font-size:13px;
      font-weight:750;
    }
    .contact-mini{
      position:relative;
      z-index:1;
      padding:24px;
      border-radius:26px;
      background:#111827;
      color:#fff;
      align-self:stretch;
      display:flex;
      flex-direction:column;
      justify-content:space-between;
    }
    .contact-mini h3{
      margin:0;
      font-size:24px;
      line-height:1.2;
      letter-spacing:-.04em;
    }
    .contact-mini p{
      margin:12px 0 22px;
      color:#cbd5e1;
      font-size:14px;
    }
    .privacy-line{
      display:flex;
      gap:10px;
      align-items:flex-start;
      padding:14px;
      border-radius:18px;
      background:rgba(255,255,255,.08);
      border:1px solid rgba(255,255,255,.10);
      color:#e2e8f0;
      font-size:13px;
    }

    .site-footer{
      border-top:1px solid var(--line);
      background:#0f172a;
      color:#fff;
      padding:44px 0 26px;
    }
    .footer-grid{
      display:grid;
      grid-template-columns:minmax(0,1fr) minmax(260px,360px);
      gap:28px;
      align-items:start;
    }
    .footer-brand{
      display:flex;
      align-items:center;
      gap:12px;
      font-weight:950;
      font-size:18px;
      letter-spacing:-.03em;
      margin-bottom:14px;
    }
    .footer-brand .brand-mark{
      width:36px;
      height:36px;
      box-shadow:none;
    }
    .footer-text{
      max-width:760px;
      margin:0;
      color:#cbd5e1;
    }
    .footer-links{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      justify-content:flex-end;
    }
    .footer-links a{
      padding:9px 12px;
      border-radius:999px;
      background:rgba(255,255,255,.08);
      color:#e2e8f0;
      font-size:13px;
      font-weight:800;
      transition:background .2s var(--ease),color .2s var(--ease),transform .2s var(--ease);
    }
    .footer-links a:hover{
      background:#fff;
      color:#111827;
      transform:translateY(-2px);
    }
    .copyright{
      margin-top:30px;
      padding-top:20px;
      border-top:1px solid rgba(255,255,255,.10);
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      justify-content:space-between;
      color:#94a3b8;
      font-size:13px;
    }

    .float-cta{
      position:fixed;
      left:50%;
      bottom:18px;
      transform:translateX(-50%);
      z-index:900;
      width:min(720px,calc(100% - 28px));
      padding:10px;
      border-radius:999px;
      background:rgba(17,24,39,.86);
      backdrop-filter:blur(18px);
      border:1px solid rgba(255,255,255,.12);
      box-shadow:0 18px 50px rgba(0,0,0,.22);
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:14px;
      color:#fff;
    }
    .float-cta span{
      padding-left:12px;
      font-size:14px;
      color:#e2e8f0;
      font-weight:800;
    }
    .float-cta .btn{
      min-height:40px;
      padding:0 15px;
      background:#fff;
      color:#111827;
      box-shadow:none;
    }

    @media (max-width:1180px){
      .layout{grid-template-columns:1fr}
      .side-toc{display:none}
      .container{width:min(var(--container),calc(100% - 40px))}
      .hero-grid{grid-template-columns:1fr;padding:34px}
      .hero-copy{min-height:auto}
      .hero-metrics{margin-bottom:10px}
      .lead-stage{grid-template-columns:1fr 1fr}
      .whitepaper{min-height:100%}
      .top-meta .pill:first-child{display:none}
    }
    @media (max-width:920px){
      .topbar{height:auto;min-height:var(--header-h)}
      .topbar-inner{flex-wrap:wrap;padding:12px 18px;gap:10px}
      .brand{order:1}
      .menu-toggle{display:inline-grid;place-items:center;order:2;margin-left:auto}
      .doc-search{order:4;flex-basis:100%;max-width:none;margin:0}
      .nav-main{
        order:5;
        flex-basis:100%;
        display:none;
        padding-top:4px;
      }
      .nav-main.open{display:flex}
      .top-meta{display:none}
      .section{padding:58px 0}
      .section-head,
      .news-wrap,
      .service-layout,
      .app-shell,
      .progress-wrap,
      .faq-layout,
      .about-panel,
      .footer-grid{
        grid-template-columns:1fr;
      }
      .lead-stage{grid-template-columns:1fr}
      .security-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
      .faq-note{position:relative;top:auto}
      .footer-links{justify-content:flex-start}
    }
    @media (max-width:640px){
      .container{width:calc(100% - 28px)}
      .hero{padding:28px 0 48px}
      .hero-panel{border-radius:26px}
      .hero-grid{padding:22px;gap:22px}
      .hero h1{font-size:42px}
      .hero-desc{font-size:16px}
      .hero-actions{flex-direction:column}
      .btn{width:100%}
      .hero-metrics,
      .solution-grid,
      .security-grid,
      .trust-row,
      .download-meta,
      .paper-chapters,
      .form-grid{
        grid-template-columns:1fr;
      }
      .article-link{
        grid-template-columns:1fr auto;
        gap:10px;
      }
      .article-date{grid-column:1/-1}
      .whitepaper h2{font-size:30px;margin-top:36px}
      .section-head h2,
      .progress-text h2,
      .about-copy h2,
      .faq-note h2{font-size:30px}
      .app-section{border-radius:0}
      .progress-wrap,
      .about-panel{padding:22px;border-radius:26px}
      .float-cta{
        align-items:stretch;
        border-radius:22px;
        flex-direction:column;
        bottom:10px;
      }
      .float-cta span{padding:4px 8px 0}
      .float-cta .btn{width:100%}
      .copyright{padding-bottom:116px}
    }