/* roulang page: index */
:root{
      --bg:#f6f3ec;
      --bg-soft:#fffaf0;
      --panel:#ffffff;
      --panel-2:#12130f;
      --text:#171713;
      --muted:#686b5d;
      --subtle:#8b8d7d;
      --line:#e7dfcf;
      --line-dark:rgba(255,255,255,.14);
      --primary:#6d5dfc;
      --primary-dark:#5143d8;
      --primary-soft:#eceaff;
      --accent:#ff9f43;
      --accent-soft:#fff0d9;
      --mint:#24c08a;
      --mint-soft:#e7fbf3;
      --danger:#e95858;
      --radius-xs:10px;
      --radius-sm:14px;
      --radius-md:22px;
      --radius-lg:32px;
      --shadow-sm:0 8px 24px rgba(35,31,18,.07);
      --shadow-md:0 18px 50px rgba(35,31,18,.11);
      --shadow-lg:0 28px 90px rgba(35,31,18,.16);
      --container:1180px;
      --nav-height:76px;
      --font:"Inter","PingFang SC","Microsoft YaHei",system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
    }

    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:var(--font);
      color:var(--text);
      line-height:1.72;
      background:
        radial-gradient(circle at 8% 3%, rgba(109,93,252,.18), transparent 28%),
        radial-gradient(circle at 92% 10%, rgba(255,159,67,.18), transparent 26%),
        linear-gradient(180deg,#faf6ee 0%, var(--bg) 52%, #fbf8f0 100%);
      -webkit-font-smoothing:antialiased;
      text-rendering:optimizeLegibility;
      padding-bottom:82px;
    }
    a{color:inherit;text-decoration:none;transition:color .2s ease,background .2s ease,box-shadow .2s ease,transform .2s ease}
    a:hover{color:var(--primary)}
    img{max-width:100%;display:block}
    button,input,textarea,select{font-family:inherit}
    button{cursor:pointer}
    ::selection{background:var(--primary);color:#fff}
    :focus-visible{outline:3px solid rgba(109,93,252,.35);outline-offset:3px}

    .container{
      width:min(calc(100% - 40px), var(--container));
      margin-inline:auto;
    }
    .section{
      padding:86px 0;
      position:relative;
    }
    .section.compact{padding:58px 0}
    .section-dark{
      background:#14150f;
      color:#fff;
      border-radius:36px;
      overflow:hidden;
      margin:32px auto;
      width:min(calc(100% - 32px), 1240px);
      box-shadow:var(--shadow-lg);
    }
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      color:var(--primary-dark);
      background:rgba(109,93,252,.1);
      border:1px solid rgba(109,93,252,.16);
      padding:7px 12px;
      border-radius:999px;
      font-size:13px;
      font-weight:800;
      letter-spacing:.02em;
      margin-bottom:14px;
    }
    .eyebrow.dark{
      color:#fff;
      background:rgba(255,255,255,.08);
      border-color:rgba(255,255,255,.16);
    }
    .section-title{
      margin:0 0 14px;
      font-size:clamp(28px, 4vw, 46px);
      line-height:1.12;
      letter-spacing:-.04em;
      font-weight:900;
    }
    .section-desc{
      margin:0;
      color:var(--muted);
      font-size:17px;
      max-width:760px;
    }
    .section-dark .section-desc{color:rgba(255,255,255,.72)}
    .section-head{
      display:flex;
      justify-content:space-between;
      align-items:flex-end;
      gap:24px;
      margin-bottom:34px;
    }
    .section-head .section-desc{max-width:600px}
    .badge{
      display:inline-flex;
      align-items:center;
      gap:6px;
      min-height:28px;
      border-radius:999px;
      padding:5px 10px;
      font-size:12px;
      font-weight:800;
      color:#3c3422;
      background:var(--accent-soft);
      border:1px solid rgba(255,159,67,.25);
      white-space:nowrap;
    }
    .badge.green{background:var(--mint-soft);border-color:rgba(36,192,138,.22);color:#08714e}
    .badge.purple{background:var(--primary-soft);border-color:rgba(109,93,252,.2);color:var(--primary-dark)}
    .badge.dark{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.16);color:#fff}

    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:9px;
      border:0;
      border-radius:16px;
      min-height:48px;
      padding:0 18px;
      font-weight:900;
      font-size:15px;
      line-height:1;
      transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border .2s ease;
      user-select:none;
    }
    .btn-primary{
      background:linear-gradient(135deg,var(--primary),#887cff);
      color:#fff;
      box-shadow:0 16px 32px rgba(109,93,252,.28);
    }
    .btn-primary:hover{
      color:#fff;
      transform:translateY(-2px);
      box-shadow:0 22px 45px rgba(109,93,252,.35);
    }
    .btn-secondary{
      color:var(--text);
      background:#fff;
      border:1px solid var(--line);
      box-shadow:var(--shadow-sm);
    }
    .btn-secondary:hover{
      color:var(--primary-dark);
      transform:translateY(-2px);
      box-shadow:var(--shadow-md);
    }
    .btn-dark{
      color:#fff;
      background:#191b14;
      border:1px solid rgba(255,255,255,.1);
    }
    .btn-dark:hover{color:#fff;background:#26281f;transform:translateY(-2px)}
    .btn-ghost{
      background:rgba(109,93,252,.08);
      color:var(--primary-dark);
      border:1px solid rgba(109,93,252,.12);
    }
    .btn-ghost:hover{background:rgba(109,93,252,.13);color:var(--primary-dark)}
    .btn-block{width:100%}

    .site-header{
      position:sticky;
      top:0;
      z-index:1000;
      backdrop-filter:saturate(160%) blur(18px);
      background:rgba(250,246,238,.82);
      border-bottom:1px solid rgba(231,223,207,.74);
    }
    .toolbar{
      min-height:var(--nav-height);
      display:flex;
      align-items:center;
      gap:14px;
    }
    .brand{
      display:flex;
      align-items:center;
      gap:10px;
      min-width:max-content;
      font-weight:950;
      letter-spacing:-.04em;
      color:var(--text);
    }
    .brand-mark{
      width:40px;
      height:40px;
      display:grid;
      place-items:center;
      border-radius:14px;
      color:#fff;
      background:
        linear-gradient(135deg,rgba(255,255,255,.16),transparent),
        linear-gradient(135deg,var(--primary),var(--accent));
      box-shadow:0 14px 30px rgba(109,93,252,.25);
    }
    .brand span:last-child{
      max-width:270px;
      overflow:hidden;
      text-overflow:ellipsis;
      white-space:nowrap;
    }
    .tool-nav{
      display:flex;
      align-items:center;
      gap:6px;
      margin-left:12px;
      padding:6px;
      background:rgba(255,255,255,.62);
      border:1px solid rgba(231,223,207,.72);
      border-radius:18px;
      box-shadow:0 8px 24px rgba(35,31,18,.04);
    }
    .tool-nav a{
      display:inline-flex;
      align-items:center;
      gap:8px;
      min-height:38px;
      padding:0 13px;
      border-radius:13px;
      color:#55584d;
      font-weight:850;
      font-size:14px;
    }
    .tool-nav a:hover,
    .tool-nav a.active{
      color:var(--text);
      background:#fff;
      box-shadow:0 8px 20px rgba(35,31,18,.07);
    }
    .nav-spacer{flex:1}
    .nav-search{
      width:250px;
      height:42px;
      display:flex;
      align-items:center;
      gap:8px;
      padding:0 12px;
      border:1px solid rgba(231,223,207,.86);
      border-radius:15px;
      background:#fff;
      color:var(--subtle);
    }
    .nav-search input{
      border:0;
      background:transparent;
      box-shadow:none;
      height:100%;
      margin:0;
      padding:0;
      color:var(--text);
      font-size:14px;
    }
    .nav-search input:focus{box-shadow:none;border:0;background:transparent}
    .status-pill{
      display:inline-flex;
      align-items:center;
      gap:8px;
      color:#445044;
      background:rgba(36,192,138,.1);
      border:1px solid rgba(36,192,138,.18);
      border-radius:999px;
      padding:10px 12px;
      font-size:13px;
      font-weight:900;
      white-space:nowrap;
    }
    .status-dot{
      width:8px;
      height:8px;
      border-radius:50%;
      background:var(--mint);
      box-shadow:0 0 0 5px rgba(36,192,138,.13);
    }
    .icon-btn{
      width:42px;
      height:42px;
      display:grid;
      place-items:center;
      border-radius:15px;
      color:#55584d;
      background:#fff;
      border:1px solid rgba(231,223,207,.82);
      position:relative;
    }
    .icon-btn:hover{color:var(--primary);box-shadow:var(--shadow-sm);transform:translateY(-1px)}
    .icon-btn .ping{
      position:absolute;
      top:9px;
      right:10px;
      width:7px;
      height:7px;
      border-radius:50%;
      background:var(--danger);
    }
    .mobile-toggle{display:none}

    .hero{
      padding:72px 0 44px;
    }
    .hero-panel{
      position:relative;
      overflow:hidden;
      border-radius:38px;
      background:
        linear-gradient(120deg, rgba(18,19,15,.92), rgba(18,19,15,.78)),
        radial-gradient(circle at 75% 0%, rgba(109,93,252,.42), transparent 34%),
        radial-gradient(circle at 18% 100%, rgba(255,159,67,.36), transparent 30%),
        #151610;
      box-shadow:var(--shadow-lg);
      color:#fff;
      padding:clamp(28px, 5vw, 62px);
      min-height:520px;
    }
    .hero-panel:before{
      content:"";
      position:absolute;
      inset:0;
      background-image:
        linear-gradient(rgba(255,255,255,.05) 1px, transparent 1px),
        linear-gradient(90deg,rgba(255,255,255,.05) 1px, transparent 1px);
      background-size:42px 42px;
      mask-image:linear-gradient(90deg, rgba(0,0,0,.9), transparent 86%);
      pointer-events:none;
    }
    .hero-content{
      position:relative;
      display:grid;
      grid-template-columns:minmax(0,1.1fr) minmax(320px,.82fr);
      gap:34px;
      align-items:stretch;
    }
    .hero-kicker{
      display:flex;
      flex-wrap:wrap;
      align-items:center;
      gap:10px;
      margin-bottom:18px;
    }
    h1{
      margin:0;
      max-width:780px;
      font-size:clamp(38px,6vw,74px);
      line-height:1.02;
      letter-spacing:-.065em;
      font-weight:950;
    }
    .hero-lead{
      max-width:760px;
      margin:22px 0 0;
      color:rgba(255,255,255,.78);
      font-size:18px;
    }
    .hero-actions{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      margin-top:28px;
    }
    .hero-metrics{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      margin-top:30px;
    }
    .metric-chip{
      display:flex;
      align-items:center;
      gap:10px;
      min-height:58px;
      padding:10px 14px;
      border:1px solid rgba(255,255,255,.13);
      background:rgba(255,255,255,.08);
      border-radius:18px;
    }
    .metric-chip strong{display:block;font-size:20px;line-height:1;font-weight:950}
    .metric-chip span{display:block;color:rgba(255,255,255,.62);font-size:12px;margin-top:3px}
    .lead-card{
      background:rgba(255,255,255,.92);
      color:var(--text);
      border-radius:28px;
      padding:24px;
      box-shadow:0 24px 80px rgba(0,0,0,.22);
      border:1px solid rgba(255,255,255,.42);
    }
    .lead-card h2{
      margin:0 0 8px;
      font-size:24px;
      line-height:1.2;
      letter-spacing:-.03em;
      font-weight:950;
    }
    .lead-card p{
      margin:0 0 18px;
      color:var(--muted);
      font-size:14px;
    }
    .lead-form label{
      color:#3c3d36;
      font-weight:850;
      font-size:13px;
      margin-bottom:7px;
    }
    .lead-form input,
    .lead-form select,
    .lead-form textarea{
      border:1px solid var(--line);
      border-radius:14px;
      background:#fff;
      box-shadow:none;
      min-height:46px;
      margin-bottom:12px;
      color:var(--text);
      font-size:14px;
    }
    .lead-form textarea{min-height:88px;resize:vertical}
    .lead-form input:focus,
    .lead-form select:focus,
    .lead-form textarea:focus{
      border-color:rgba(109,93,252,.55);
      box-shadow:0 0 0 4px rgba(109,93,252,.12);
      background:#fff;
    }
    .countdown{
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:8px;
      margin:16px 0 18px;
    }
    .count-box{
      border-radius:14px;
      background:#f7f3ea;
      border:1px solid var(--line);
      text-align:center;
      padding:10px 6px;
    }
    .count-box b{display:block;font-size:22px;line-height:1;font-weight:950;color:var(--primary-dark)}
    .count-box small{font-size:11px;color:var(--subtle);font-weight:800}
    .form-note{
      display:flex;
      gap:9px;
      align-items:flex-start;
      margin-top:12px;
      color:var(--muted);
      font-size:12px;
      line-height:1.55;
    }

    .commission-layout{
      display:grid;
      grid-template-columns:.8fr 1.2fr;
      gap:26px;
      align-items:start;
    }
    .commission-summary{
      position:sticky;
      top:104px;
      border-radius:28px;
      background:var(--panel);
      border:1px solid var(--line);
      box-shadow:var(--shadow-md);
      padding:28px;
    }
    .commission-summary .big-number{
      font-size:64px;
      font-weight:950;
      line-height:.95;
      letter-spacing:-.07em;
      color:var(--primary-dark);
      margin:16px 0 8px;
    }
    .commission-summary p{color:var(--muted);margin:0}
    .commission-list{
      display:grid;
      gap:14px;
    }
    .tier-card{
      display:grid;
      grid-template-columns:72px 1fr auto;
      gap:18px;
      align-items:center;
      background:rgba(255,255,255,.72);
      border:1px solid var(--line);
      border-radius:24px;
      padding:18px;
      box-shadow:var(--shadow-sm);
      transition:transform .2s ease,box-shadow .2s ease,border .2s ease;
    }
    .tier-card:hover{
      transform:translateY(-3px);
      box-shadow:var(--shadow-md);
      border-color:rgba(109,93,252,.24);
    }
    .tier-icon{
      width:64px;
      height:64px;
      display:grid;
      place-items:center;
      border-radius:20px;
      background:var(--primary-soft);
      color:var(--primary-dark);
      font-size:22px;
    }
    .tier-card:nth-child(2) .tier-icon{background:var(--accent-soft);color:#ad6412}
    .tier-card:nth-child(3) .tier-icon{background:var(--mint-soft);color:#08714e}
    .tier-card h3{margin:0 0 4px;font-size:20px;font-weight:950;letter-spacing:-.025em}
    .tier-card p{margin:0;color:var(--muted);font-size:14px}
    .tier-value{
      font-weight:950;
      color:#3c3422;
      background:#fff8e8;
      border:1px solid rgba(255,159,67,.22);
      padding:10px 12px;
      border-radius:14px;
      white-space:nowrap;
    }

    .materials-board{
      display:grid;
      grid-template-columns:1.05fr .95fr;
      gap:24px;
      align-items:stretch;
    }
    .asset-stack{
      border-radius:30px;
      padding:22px;
      background:#fff;
      border:1px solid var(--line);
      box-shadow:var(--shadow-md);
    }
    .asset-tabs{
      display:flex;
      flex-wrap:wrap;
      gap:8px;
      margin-bottom:18px;
    }
    .asset-tab{
      border:1px solid var(--line);
      background:#faf7ef;
      border-radius:999px;
      padding:9px 13px;
      font-size:13px;
      font-weight:900;
      color:#56584e;
    }
    .asset-tab.active,
    .asset-tab:hover{background:var(--primary);color:#fff;border-color:var(--primary)}
    .asset-item{
      display:flex;
      gap:14px;
      align-items:flex-start;
      padding:16px;
      border-radius:20px;
      border:1px solid var(--line);
      background:linear-gradient(180deg,#fff,#fffaf2);
      margin-bottom:12px;
    }
    .asset-item:last-child{margin-bottom:0}
    .asset-item i{
      width:42px;
      height:42px;
      display:grid;
      place-items:center;
      border-radius:15px;
      background:var(--primary-soft);
      color:var(--primary-dark);
      flex:0 0 auto;
    }
    .asset-item h3{margin:0 0 3px;font-size:17px;font-weight:950}
    .asset-item p{margin:0;color:var(--muted);font-size:14px}
    .parameter-panel{
      border-radius:30px;
      background:#171813;
      color:#fff;
      padding:24px;
      position:relative;
      overflow:hidden;
    }
    .parameter-panel:after{
      content:"";
      position:absolute;
      width:260px;
      height:260px;
      right:-120px;
      top:-120px;
      border-radius:50%;
      background:rgba(109,93,252,.38);
      filter:blur(8px);
    }
    .parameter-panel > *{position:relative;z-index:1}
    .parameter-grid{
      display:grid;
      grid-template-columns:repeat(2,1fr);
      gap:12px;
      margin-top:18px;
    }
    .parameter{
      padding:16px;
      border-radius:18px;
      background:rgba(255,255,255,.07);
      border:1px solid rgba(255,255,255,.12);
    }
    .parameter b{display:block;font-size:24px;line-height:1;font-weight:950}
    .parameter span{display:block;margin-top:7px;color:rgba(255,255,255,.62);font-size:12px;font-weight:750}
    .feature-rotator{
      margin-top:18px;
      border-radius:20px;
      padding:16px;
      background:rgba(255,159,67,.12);
      border:1px solid rgba(255,159,67,.22);
      min-height:100px;
    }
    .feature-rotator strong{display:block;margin-bottom:6px;color:#ffca8a}
    .feature-rotator p{margin:0;color:rgba(255,255,255,.72)}

    .news-layout{
      display:grid;
      grid-template-columns:minmax(0,1fr) 340px;
      gap:24px;
    }
    .news-list{
      border-radius:30px;
      background:#fff;
      border:1px solid var(--line);
      box-shadow:var(--shadow-md);
      overflow:hidden;
    }
    .news-row{
      display:grid;
      grid-template-columns:110px 1fr auto;
      gap:16px;
      align-items:center;
      padding:19px 22px;
      border-bottom:1px solid var(--line);
    }
    .news-row:last-child{border-bottom:0}
    .news-row:hover{background:#fffaf2}
    .news-date{
      color:var(--subtle);
      font-size:13px;
      font-weight:850;
    }
    .news-row h3{
      margin:0 0 3px;
      font-size:18px;
      line-height:1.35;
      font-weight:950;
      letter-spacing:-.02em;
    }
    .news-row p{margin:0;color:var(--muted);font-size:14px}
    .news-arrow{
      width:36px;
      height:36px;
      display:grid;
      place-items:center;
      border-radius:12px;
      background:#f5f1e8;
      color:#55584d;
    }
    .news-row:hover .news-arrow{background:var(--primary);color:#fff}
    .recommend-box{
      border-radius:30px;
      background:linear-gradient(180deg,#fff8e8,#fff);
      border:1px solid var(--line);
      box-shadow:var(--shadow-sm);
      padding:24px;
      position:sticky;
      top:104px;
    }
    .recommend-box h3{margin:0 0 12px;font-size:22px;font-weight:950;letter-spacing:-.03em}
    .recommend-box p{color:var(--muted);margin:0 0 16px}
    .check-list{
      list-style:none;
      padding:0;
      margin:0;
      display:grid;
      gap:10px;
    }
    .check-list li{
      display:flex;
      gap:10px;
      align-items:flex-start;
      color:#46483f;
      font-size:14px;
    }
    .check-list i{
      color:var(--mint);
      margin-top:5px;
      flex:0 0 auto;
    }

    .topic-grid{
      display:grid;
      grid-template-columns:repeat(12,1fr);
      gap:16px;
    }
    .topic-card{
      grid-column:span 4;
      position:relative;
      min-height:210px;
      border-radius:28px;
      padding:22px;
      background:#fff;
      border:1px solid var(--line);
      box-shadow:var(--shadow-sm);
      overflow:hidden;
      transition:transform .2s ease,box-shadow .2s ease,border .2s ease;
    }
    .topic-card.large{grid-column:span 6;background:linear-gradient(135deg,#1a1b14,#2a2148);color:#fff;border-color:rgba(255,255,255,.12)}
    .topic-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:rgba(109,93,252,.24)}
    .topic-card h3{margin:14px 0 8px;font-size:23px;font-weight:950;letter-spacing:-.035em}
    .topic-card p{margin:0;color:var(--muted)}
    .topic-card.large p{color:rgba(255,255,255,.68)}
    .topic-number{
      width:44px;
      height:44px;
      display:grid;
      place-items:center;
      border-radius:16px;
      background:var(--primary-soft);
      color:var(--primary-dark);
      font-weight:950;
    }
    .topic-card.large .topic-number{background:rgba(255,255,255,.1);color:#fff}

    .security-grid{
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:16px;
      margin-top:28px;
    }
    .security-card{
      padding:22px;
      border-radius:24px;
      background:rgba(255,255,255,.07);
      border:1px solid rgba(255,255,255,.12);
      min-height:190px;
      transition:transform .2s ease,background .2s ease;
    }
    .security-card:hover{transform:translateY(-3px);background:rgba(255,255,255,.1)}
    .security-card i{
      width:48px;
      height:48px;
      display:grid;
      place-items:center;
      border-radius:18px;
      background:rgba(36,192,138,.14);
      color:#71f0bf;
      font-size:20px;
      margin-bottom:14px;
    }
    .security-card h3{margin:0 0 7px;font-size:18px;font-weight:950}
    .security-card p{margin:0;color:rgba(255,255,255,.66);font-size:14px}

    .changelog{
      display:grid;
      grid-template-columns:360px 1fr;
      gap:28px;
      align-items:start;
    }
    .release-card{
      border-radius:30px;
      background:#fff;
      border:1px solid var(--line);
      box-shadow:var(--shadow-md);
      padding:26px;
    }
    .release-card h3{font-size:28px;margin:10px 0 8px;font-weight:950;letter-spacing:-.04em}
    .release-card p{margin:0;color:var(--muted)}
    .release-timeline{
      border-left:2px solid #e7dfcf;
      padding-left:24px;
      display:grid;
      gap:18px;
    }
    .release-item{
      position:relative;
      background:#fff;
      border:1px solid var(--line);
      border-radius:22px;
      padding:18px 20px;
      box-shadow:var(--shadow-sm);
    }
    .release-item:before{
      content:"";
      position:absolute;
      left:-32px;
      top:24px;
      width:14px;
      height:14px;
      border-radius:50%;
      background:var(--primary);
      box-shadow:0 0 0 6px var(--primary-soft);
    }
    .release-item h3{margin:0 0 6px;font-size:18px;font-weight:950}
    .release-item p{margin:0;color:var(--muted);font-size:14px}

    .voice-wall{
      display:grid;
      grid-template-columns:1.1fr .9fr;
      gap:20px;
      align-items:stretch;
    }
    .quote-main,
    .quote-list{
      border-radius:30px;
      background:#fff;
      border:1px solid var(--line);
      box-shadow:var(--shadow-md);
      padding:28px;
    }
    .quote-main blockquote{
      margin:0;
      font-size:28px;
      line-height:1.35;
      letter-spacing:-.035em;
      font-weight:900;
    }
    .quote-main p{margin:18px 0 0;color:var(--muted)}
    .quote-avatar{
      display:flex;
      gap:12px;
      align-items:center;
      margin-top:24px;
      padding-top:20px;
      border-top:1px solid var(--line);
    }
    .avatar{
      width:46px;
      height:46px;
      border-radius:16px;
      display:grid;
      place-items:center;
      background:linear-gradient(135deg,var(--primary),var(--accent));
      color:#fff;
      font-weight:950;
    }
    .quote-mini{
      padding:16px 0;
      border-bottom:1px solid var(--line);
    }
    .quote-mini:first-child{padding-top:0}
    .quote-mini:last-child{border-bottom:0;padding-bottom:0}
    .quote-mini strong{display:block;margin-bottom:5px}
    .quote-mini span{color:var(--muted);font-size:14px}

    .faq-wrap{
      display:grid;
      grid-template-columns:360px 1fr;
      gap:28px;
      align-items:start;
    }
    .faq-list{
      display:grid;
      gap:12px;
    }
    .faq-item{
      background:#fff;
      border:1px solid var(--line);
      border-radius:22px;
      overflow:hidden;
      box-shadow:var(--shadow-sm);
    }
    .faq-question{
      width:100%;
      min-height:62px;
      padding:18px 20px;
      border:0;
      background:#fff;
      display:flex;
      justify-content:space-between;
      align-items:center;
      gap:16px;
      text-align:left;
      font-size:17px;
      font-weight:950;
      color:var(--text);
    }
    .faq-question:hover{background:#fffaf2}
    .faq-answer{
      display:none;
      padding:0 20px 20px;
      color:var(--muted);
      font-size:15px;
    }
    .faq-item.open .faq-answer{display:block}
    .faq-item.open .faq-question i{transform:rotate(180deg)}
    .faq-question i{transition:transform .2s ease;color:var(--primary)}

    .join-panel{
      border-radius:38px;
      background:
        radial-gradient(circle at 10% 20%, rgba(255,159,67,.26), transparent 30%),
        radial-gradient(circle at 90% 20%, rgba(109,93,252,.24), transparent 28%),
        #fff;
      border:1px solid var(--line);
      box-shadow:var(--shadow-lg);
      padding:clamp(26px,5vw,54px);
      display:grid;
      grid-template-columns:1fr 410px;
      gap:28px;
      align-items:center;
    }
    .join-steps{
      display:grid;
      gap:12px;
      margin-top:24px;
    }
    .join-step{
      display:flex;
      gap:14px;
      align-items:flex-start;
      padding:15px;
      border:1px solid var(--line);
      border-radius:20px;
      background:rgba(255,255,255,.68);
    }
    .join-step b{
      width:34px;
      height:34px;
      display:grid;
      place-items:center;
      border-radius:12px;
      background:var(--text);
      color:#fff;
      flex:0 0 auto;
    }
    .join-step strong{display:block;margin-bottom:2px}
    .join-step span{color:var(--muted);font-size:14px}
    .join-form-card{
      border-radius:28px;
      background:#161711;
      color:#fff;
      padding:24px;
      box-shadow:0 22px 60px rgba(20,21,15,.22);
    }
    .join-form-card h3{margin:0 0 8px;font-size:24px;font-weight:950}
    .join-form-card p{margin:0 0 16px;color:rgba(255,255,255,.66)}
    .join-form-card input,
    .join-form-card select{
      border:1px solid rgba(255,255,255,.12);
      background:rgba(255,255,255,.08);
      border-radius:14px;
      color:#fff;
      min-height:46px;
      box-shadow:none;
      margin-bottom:12px;
    }
    .join-form-card input::placeholder{color:rgba(255,255,255,.42)}
    .join-form-card input:focus,
    .join-form-card select:focus{
      border-color:rgba(255,159,67,.55);
      box-shadow:0 0 0 4px rgba(255,159,67,.14);
      background:rgba(255,255,255,.1);
    }
    .join-form-card option{color:#111;background:#fff}

    .site-footer{
      background:#12130f;
      color:#fff;
      padding:54px 0 34px;
      margin-top:28px;
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.2fr .8fr .8fr;
      gap:28px;
      padding-bottom:30px;
      border-bottom:1px solid rgba(255,255,255,.1);
    }
    .footer-brand{
      display:flex;
      align-items:center;
      gap:10px;
      font-size:18px;
      font-weight:950;
      letter-spacing:-.03em;
      margin-bottom:12px;
    }
    .footer-brand .brand-mark{width:38px;height:38px}
    .footer-text{color:rgba(255,255,255,.62);max-width:520px;margin:0}
    .footer-col h3{font-size:15px;font-weight:950;margin:0 0 12px}
    .footer-links{
      list-style:none;
      padding:0;
      margin:0;
      display:grid;
      gap:8px;
    }
    .footer-links a{color:rgba(255,255,255,.62);font-size:14px}
    .footer-links a:hover{color:#fff}
    .footer-bottom{
      display:flex;
      justify-content:space-between;
      gap:16px;
      flex-wrap:wrap;
      padding-top:22px;
      color:rgba(255,255,255,.5);
      font-size:13px;
    }

    .floating-cta{
      position:fixed;
      left:50%;
      bottom:18px;
      transform:translateX(-50%);
      z-index:1200;
      width:min(calc(100% - 28px), 980px);
      display:flex;
      justify-content:space-between;
      align-items:center;
      gap:16px;
      padding:12px 14px 12px 18px;
      border-radius:22px;
      background:rgba(18,19,15,.92);
      color:#fff;
      border:1px solid rgba(255,255,255,.12);
      box-shadow:0 22px 70px rgba(0,0,0,.28);
      backdrop-filter:blur(16px);
    }
    .floating-cta strong{display:block;font-weight:950}
    .floating-cta span{display:block;color:rgba(255,255,255,.62);font-size:13px}
    .floating-cta .btn{min-height:42px;border-radius:14px}
    .toast{
      position:fixed;
      right:18px;
      top:92px;
      z-index:1300;
      min-width:260px;
      max-width:360px;
      display:none;
      padding:14px 16px;
      border-radius:18px;
      background:#171813;
      color:#fff;
      box-shadow:var(--shadow-lg);
      border:1px solid rgba(255,255,255,.12);
    }
    .toast.show{display:block;animation:toastIn .28s ease}
    @keyframes toastIn{from{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}

    @media (max-width:1024px){
      .nav-search{display:none}
      .hero-content,
      .commission-layout,
      .materials-board,
      .news-layout,
      .changelog,
      .voice-wall,
      .faq-wrap,
      .join-panel{grid-template-columns:1fr}
      .commission-summary,
      .recommend-box{position:relative;top:auto}
      .security-grid{grid-template-columns:repeat(2,1fr)}
      .topic-card,
      .topic-card.large{grid-column:span 6}
      .footer-grid{grid-template-columns:1fr 1fr}
      .hero-panel{min-height:auto}
    }
    @media (max-width:768px){
      body{padding-bottom:104px}
      .container{width:min(calc(100% - 28px), var(--container))}
      .section{padding:62px 0}
      .section-head{display:block}
      .section-head .btn{margin-top:18px}
      .toolbar{min-height:68px;gap:10px}
      .brand span:last-child{max-width:180px}
      .tool-nav{
        position:absolute;
        top:72px;
        left:14px;
        right:14px;
        display:none;
        flex-direction:column;
        align-items:stretch;
        background:rgba(255,255,255,.96);
        border-radius:20px;
        padding:10px;
        box-shadow:var(--shadow-lg);
      }
      .tool-nav.open{display:flex}
      .tool-nav a{justify-content:flex-start}
      .mobile-toggle{display:grid}
      .status-pill{display:none}
      .header-cta{display:none}
      .hero{padding-top:34px}
      .hero-panel{border-radius:28px;padding:24px}
      .lead-card{padding:20px;border-radius:24px}
      .hero-actions .btn{width:100%}
      .metric-chip{flex:1 1 calc(50% - 8px)}
      .tier-card{grid-template-columns:56px 1fr}
      .tier-value{grid-column:2;margin-top:4px;width:max-content}
      .tier-icon{width:54px;height:54px}
      .parameter-grid,
      .security-grid{grid-template-columns:1fr}
      .news-row{grid-template-columns:1fr auto;gap:10px}
      .news-date{grid-column:1 / -1}
      .topic-card,
      .topic-card.large{grid-column:span 12;min-height:auto}
      .footer-grid{grid-template-columns:1fr}
      .floating-cta{align-items:flex-start;flex-direction:column;border-radius:20px}
      .floating-cta .btn{width:100%}
      .toast{left:14px;right:14px;max-width:none}
    }
    @media (max-width:520px){
      h1{font-size:38px;letter-spacing:-.055em}
      .section-title{font-size:30px}
      .brand span:last-child{max-width:145px}
      .icon-btn:not(.mobile-toggle){display:none}
      .countdown{grid-template-columns:repeat(2,1fr)}
      .metric-chip{flex:1 1 100%}
      .news-row{padding:17px}
      .quote-main blockquote{font-size:22px}
      .join-panel{border-radius:28px}
      .section-dark{border-radius:26px;width:min(calc(100% - 20px), 1240px)}
    }