/* roulang page: index */
:root{
      --bg:#f5f7fb;
      --bg-strong:#ffffff;
      --ink:#121520;
      --muted:#687083;
      --soft:#8b94a7;
      --line:#e4e8f2;
      --line-dark:rgba(255,255,255,.14);
      --primary:#d81736;
      --primary-2:#ff475f;
      --primary-dark:#a80d26;
      --accent:#151b2d;
      --accent-2:#222b45;
      --warn:#ffb020;
      --success:#2bb673;
      --cyan:#48d6ff;
      --radius-sm:10px;
      --radius:18px;
      --radius-lg:28px;
      --shadow-sm:0 8px 22px rgba(18,21,32,.07);
      --shadow:0 18px 46px rgba(18,21,32,.12);
      --shadow-red:0 18px 38px rgba(216,23,54,.24);
      --container:1180px;
      --section:86px;
      --nav-h:74px;
      --ease:all .24s ease;
    }

    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      background:
        radial-gradient(circle at 12% 6%, rgba(216,23,54,.10), transparent 32%),
        radial-gradient(circle at 88% 2%, rgba(72,214,255,.10), transparent 28%),
        var(--bg);
      color:var(--ink);
      font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;
      line-height:1.78;
      letter-spacing:.01em;
      -webkit-font-smoothing:antialiased;
      text-rendering:optimizeLegibility;
    }
    a{color:inherit;text-decoration:none;transition:var(--ease)}
    a:hover{color:var(--primary)}
    img{max-width:100%;display:block}
    button,input,select,textarea{font:inherit}
    button{cursor:pointer}
    ::selection{background:rgba(216,23,54,.18);color:var(--primary-dark)}
    :focus-visible{outline:3px solid rgba(216,23,54,.28);outline-offset:3px;border-radius:10px}

    .site-shell{overflow:hidden}
    .container{
      width:min(calc(100% - 40px), var(--container));
      margin-inline:auto;
    }
    .section{padding:var(--section) 0}
    .section-tight{padding:62px 0}
    .section-head{
      display:flex;
      align-items:flex-end;
      justify-content:space-between;
      gap:28px;
      margin-bottom:32px;
    }
    .section-kicker{
      display:inline-flex;
      align-items:center;
      gap:8px;
      color:var(--primary);
      font-weight:800;
      font-size:14px;
      margin-bottom:10px;
      letter-spacing:.08em;
    }
    .section-kicker::before{
      content:"";
      width:9px;
      height:9px;
      border-radius:50%;
      background:var(--primary);
      box-shadow:0 0 0 6px rgba(216,23,54,.12);
    }
    .section-title{
      margin:0;
      color:var(--ink);
      font-size:clamp(28px,3.1vw,44px);
      line-height:1.16;
      letter-spacing:-.04em;
      font-weight:900;
    }
    .section-desc{
      margin:12px 0 0;
      color:var(--muted);
      max-width:680px;
      font-size:16px;
    }
    .section-action{
      flex:0 0 auto;
      display:flex;
      align-items:center;
      gap:12px;
    }

    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:9px;
      min-height:46px;
      padding:0 20px;
      border:1px solid transparent;
      border-radius:999px;
      font-weight:800;
      letter-spacing:.01em;
      transition:var(--ease);
      user-select:none;
      white-space:nowrap;
    }
    .btn-primary{
      color:#fff;
      background:linear-gradient(135deg,var(--primary),var(--primary-2));
      box-shadow:var(--shadow-red);
    }
    .btn-primary:hover{
      color:#fff;
      transform:translateY(-2px);
      box-shadow:0 24px 44px rgba(216,23,54,.30);
    }
    .btn-dark{
      color:#fff;
      background:var(--accent);
      border-color:rgba(255,255,255,.08);
    }
    .btn-dark:hover{color:#fff;background:#0d1324;transform:translateY(-2px)}
    .btn-ghost{
      background:#fff;
      color:var(--ink);
      border-color:var(--line);
      box-shadow:var(--shadow-sm);
    }
    .btn-ghost:hover{
      color:var(--primary);
      border-color:rgba(216,23,54,.22);
      transform:translateY(-2px);
    }
    .badge{
      display:inline-flex;
      align-items:center;
      gap:7px;
      padding:7px 12px;
      border-radius:999px;
      background:rgba(216,23,54,.08);
      color:var(--primary-dark);
      font-size:13px;
      font-weight:800;
      line-height:1;
    }
    .badge.dark{
      background:rgba(255,255,255,.10);
      color:#fff;
      border:1px solid rgba(255,255,255,.12);
    }
    .badge.neutral{
      background:#f1f4fa;
      color:#4c5568;
    }
    .dot{
      width:7px;
      height:7px;
      border-radius:50%;
      background:currentColor;
      display:inline-block;
    }

    .site-header{
      position:sticky;
      top:0;
      z-index:50;
      backdrop-filter:saturate(160%) blur(18px);
      background:rgba(245,247,251,.82);
      border-bottom:1px solid rgba(228,232,242,.82);
    }
    .nav-wrap{
      min-height:var(--nav-h);
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
    }
    .brand{
      display:flex;
      align-items:center;
      gap:12px;
      min-width:max-content;
      font-weight:950;
      letter-spacing:-.04em;
      color:var(--ink);
    }
    .brand-mark{
      width:38px;
      height:38px;
      border-radius:14px;
      display:grid;
      place-items:center;
      color:#fff;
      background:
        linear-gradient(135deg,rgba(255,255,255,.18),transparent 36%),
        linear-gradient(135deg,var(--accent),var(--primary));
      box-shadow:0 12px 26px rgba(216,23,54,.20);
      position:relative;
      overflow:hidden;
    }
    .brand-mark::after{
      content:"";
      width:16px;
      height:16px;
      border:2px solid rgba(255,255,255,.82);
      border-radius:50%;
      border-left-color:transparent;
      transform:rotate(-25deg);
    }
    .brand-text{
      font-size:18px;
      line-height:1.1;
    }
    .desktop-nav{
      display:flex;
      align-items:center;
      justify-content:center;
      flex:1;
    }
    .nav-menu{
      display:flex;
      align-items:center;
      gap:6px;
      margin:0;
      list-style:none;
      background:rgba(255,255,255,.68);
      border:1px solid rgba(228,232,242,.9);
      border-radius:999px;
      padding:5px;
      box-shadow:0 10px 24px rgba(18,21,32,.04);
    }
    .nav-menu a{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      min-height:36px;
      padding:0 16px;
      border-radius:999px;
      color:#505a6e;
      font-size:14px;
      font-weight:800;
    }
    .nav-menu a:hover{background:#fff;color:var(--primary)}
    .nav-menu a.active{
      background:var(--accent);
      color:#fff;
      box-shadow:0 8px 18px rgba(18,21,32,.18);
    }
    .nav-actions{
      display:flex;
      align-items:center;
      gap:10px;
    }
    .command-search{
      height:40px;
      width:224px;
      border-radius:999px;
      border:1px solid var(--line);
      background:#fff;
      display:flex;
      align-items:center;
      gap:8px;
      padding:0 10px 0 14px;
      color:var(--soft);
      box-shadow:0 8px 22px rgba(18,21,32,.05);
      transition:var(--ease);
    }
    .command-search:focus-within{
      border-color:rgba(216,23,54,.32);
      box-shadow:0 0 0 4px rgba(216,23,54,.09),0 8px 22px rgba(18,21,32,.06);
    }
    .command-search input{
      width:100%;
      border:0;
      box-shadow:none;
      margin:0;
      height:36px;
      padding:0;
      color:var(--ink);
      background:transparent;
      font-size:13px;
    }
    .command-search input:focus{border:0;box-shadow:none;background:transparent}
    .keycap{
      font-size:11px;
      line-height:1;
      padding:5px 7px;
      border-radius:8px;
      color:#596174;
      background:#f3f5f9;
      border:1px solid #e7ebf3;
      white-space:nowrap;
    }
    .quick-link{
      height:40px;
      display:inline-flex;
      align-items:center;
      padding:0 14px;
      border-radius:999px;
      background:#fff;
      color:#4f586b;
      border:1px solid var(--line);
      font-size:13px;
      font-weight:800;
    }
    .quick-link:hover{color:var(--primary);border-color:rgba(216,23,54,.24)}
    .menu-toggle{
      display:none;
      width:44px;
      height:44px;
      border:1px solid var(--line);
      background:#fff;
      border-radius:14px;
      align-items:center;
      justify-content:center;
      color:var(--ink);
      box-shadow:var(--shadow-sm);
    }
    .menu-toggle span,
    .menu-toggle span::before,
    .menu-toggle span::after{
      content:"";
      display:block;
      width:18px;
      height:2px;
      border-radius:4px;
      background:currentColor;
      transition:var(--ease);
      position:relative;
    }
    .menu-toggle span::before{position:absolute;top:-6px}
    .menu-toggle span::after{position:absolute;top:6px}
    .mobile-panel{
      display:none;
      border-top:1px solid var(--line);
      padding:14px 0 20px;
      background:rgba(255,255,255,.88);
    }
    .mobile-panel.open{display:block}
    .mobile-panel .mobile-row{
      display:flex;
      flex-direction:column;
      gap:12px;
    }
    .mobile-panel a{
      display:flex;
      align-items:center;
      justify-content:space-between;
      padding:13px 14px;
      border-radius:16px;
      background:#fff;
      border:1px solid var(--line);
      font-weight:850;
    }

    .hero{
      padding:48px 0 36px;
    }
    .hero-board{
      position:relative;
      border-radius:34px;
      background:
        linear-gradient(135deg,rgba(216,23,54,.16),transparent 32%),
        radial-gradient(circle at 82% 16%,rgba(72,214,255,.18),transparent 28%),
        linear-gradient(135deg,#101524,#1a2238 58%,#0d1220);
      color:#fff;
      box-shadow:0 28px 80px rgba(18,21,32,.24);
      overflow:hidden;
      border:1px solid rgba(255,255,255,.12);
    }
    .hero-board::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:34px 34px;
      mask-image:linear-gradient(180deg,rgba(0,0,0,.8),transparent 86%);
      pointer-events:none;
    }
    .hero-inner{
      position:relative;
      display:grid;
      grid-template-columns:.92fr 1.1fr .9fr;
      gap:20px;
      padding:28px;
      align-items:stretch;
    }
    .whitepaper-cover{
      min-height:430px;
      border-radius:26px;
      padding:24px;
      background:
        linear-gradient(160deg,rgba(255,255,255,.18),rgba(255,255,255,.06)),
        radial-gradient(circle at 20% 15%,rgba(255,71,95,.42),transparent 26%),
        rgba(255,255,255,.07);
      border:1px solid rgba(255,255,255,.16);
      box-shadow:inset 0 1px 0 rgba(255,255,255,.18);
      display:flex;
      flex-direction:column;
      justify-content:space-between;
      overflow:hidden;
      position:relative;
    }
    .whitepaper-cover::after{
      content:"";
      position:absolute;
      width:220px;
      height:220px;
      right:-60px;
      bottom:-70px;
      border-radius:50%;
      border:36px solid rgba(255,255,255,.07);
    }
    .cover-top{position:relative;z-index:1}
    .cover-type{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:8px 12px;
      border-radius:999px;
      color:#fff;
      background:rgba(216,23,54,.88);
      font-size:13px;
      font-weight:900;
    }
    .cover-title{
      margin:28px 0 10px;
      font-size:32px;
      line-height:1.1;
      font-weight:950;
      letter-spacing:-.06em;
    }
    .cover-meta{
      color:rgba(255,255,255,.72);
      font-size:14px;
      max-width:260px;
    }
    .cover-code{
      position:relative;
      z-index:1;
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:8px;
      margin-top:24px;
    }
    .code-cell{
      min-height:48px;
      border-radius:14px;
      background:rgba(255,255,255,.10);
      border:1px solid rgba(255,255,255,.13);
      display:flex;
      align-items:center;
      justify-content:center;
      color:rgba(255,255,255,.78);
      font-weight:850;
      font-size:12px;
    }
    .hero-copy{
      padding:12px 6px;
      display:flex;
      flex-direction:column;
      justify-content:center;
      min-width:0;
    }
    .hero h1{
      margin:16px 0 18px;
      font-size:clamp(34px,5vw,64px);
      line-height:1.03;
      letter-spacing:-.075em;
      font-weight:950;
      color:#fff;
    }
    .hero-lead{
      max-width:610px;
      margin:0;
      color:rgba(255,255,255,.78);
      font-size:17px;
      line-height:1.9;
    }
    .hero-cta{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      margin-top:26px;
    }
    .hero-points{
      margin-top:26px;
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:10px;
    }
    .point{
      padding:14px;
      border-radius:18px;
      background:rgba(255,255,255,.08);
      border:1px solid rgba(255,255,255,.12);
    }
    .point strong{
      display:block;
      font-size:22px;
      line-height:1.1;
      color:#fff;
      letter-spacing:-.04em;
    }
    .point span{
      display:block;
      margin-top:7px;
      color:rgba(255,255,255,.62);
      font-size:12px;
      line-height:1.45;
    }
    .lead-card{
      border-radius:26px;
      background:#fff;
      color:var(--ink);
      box-shadow:0 26px 56px rgba(0,0,0,.22);
      overflow:hidden;
      align-self:stretch;
      border:1px solid rgba(255,255,255,.18);
      display:flex;
      flex-direction:column;
    }
    .toc-box{
      padding:22px 22px 16px;
      border-bottom:1px solid var(--line);
      background:
        linear-gradient(180deg,#fff,#f7f8fc);
    }
    .toc-box h2{
      margin:0 0 12px;
      font-size:20px;
      font-weight:950;
      letter-spacing:-.04em;
    }
    .toc-list{
      list-style:none;
      margin:0;
      padding:0;
      display:grid;
      gap:9px;
    }
    .toc-list li{
      display:flex;
      gap:10px;
      color:#4f586b;
      font-size:14px;
      line-height:1.5;
    }
    .toc-list i{
      flex:0 0 22px;
      width:22px;
      height:22px;
      border-radius:8px;
      display:grid;
      place-items:center;
      background:rgba(216,23,54,.09);
      color:var(--primary);
      font-style:normal;
      font-size:12px;
      font-weight:950;
    }
    .download-form{
      padding:20px 22px 22px;
      display:grid;
      gap:12px;
    }
    .form-title{
      margin:0;
      font-weight:950;
      letter-spacing:-.03em;
      font-size:18px;
    }
    .field{
      display:grid;
      gap:7px;
    }
    .field label{
      color:#596174;
      font-size:13px;
      font-weight:800;
    }
    .field input,
    .field select,
    .field textarea{
      width:100%;
      height:46px;
      border-radius:14px;
      border:1px solid var(--line);
      background:#fff;
      color:var(--ink);
      padding:0 14px;
      margin:0;
      box-shadow:none;
      transition:var(--ease);
    }
    .field textarea{
      height:86px;
      padding-top:12px;
      resize:vertical;
    }
    .field input:focus,
    .field select:focus,
    .field textarea:focus{
      border-color:rgba(216,23,54,.35);
      box-shadow:0 0 0 4px rgba(216,23,54,.08);
      background:#fff;
    }
    .form-note{
      margin:0;
      color:var(--soft);
      font-size:12px;
      line-height:1.55;
    }
    .form-message{
      display:none;
      padding:10px 12px;
      border-radius:14px;
      color:#17663f;
      background:rgba(43,182,115,.10);
      border:1px solid rgba(43,182,115,.20);
      font-size:13px;
      font-weight:800;
    }
    .form-message.show{display:block}

    .catalog-section{
      background:linear-gradient(180deg,transparent,#fff 18%,#fff 82%,transparent);
    }
    .catalog-layout{
      display:grid;
      grid-template-columns:1fr 1.35fr;
      gap:24px;
      align-items:start;
    }
    .catalog-panel{
      position:sticky;
      top:96px;
      border-radius:28px;
      background:#fff;
      border:1px solid var(--line);
      box-shadow:var(--shadow-sm);
      padding:24px;
    }
    .status-strip{
      margin-top:18px;
      display:grid;
      gap:12px;
    }
    .status-item{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:14px;
      padding:13px 14px;
      border-radius:16px;
      background:#f7f9fd;
      border:1px solid #edf0f6;
    }
    .status-item span{
      color:#596174;
      font-size:13px;
      font-weight:800;
    }
    .status-item strong{
      color:var(--ink);
      font-size:18px;
      line-height:1;
    }
    .catalog-grid{
      display:grid;
      grid-template-columns:repeat(2,1fr);
      gap:16px;
    }
    .catalog-card{
      position:relative;
      min-height:190px;
      padding:20px;
      border-radius:24px;
      background:#fff;
      border:1px solid var(--line);
      box-shadow:var(--shadow-sm);
      overflow:hidden;
      transition:var(--ease);
    }
    .catalog-card:hover{
      transform:translateY(-5px);
      box-shadow:var(--shadow);
      border-color:rgba(216,23,54,.20);
    }
    .catalog-card::after{
      content:"";
      position:absolute;
      width:86px;
      height:86px;
      right:-30px;
      top:-30px;
      border-radius:50%;
      background:rgba(216,23,54,.08);
      transition:var(--ease);
    }
    .catalog-card:hover::after{transform:scale(1.25);background:rgba(216,23,54,.12)}
    .card-index{
      width:38px;
      height:38px;
      display:grid;
      place-items:center;
      border-radius:14px;
      color:#fff;
      background:var(--accent);
      font-weight:950;
      margin-bottom:18px;
      box-shadow:0 12px 22px rgba(18,21,32,.15);
    }
    .catalog-card h3{
      margin:0 0 9px;
      font-size:20px;
      font-weight:950;
      letter-spacing:-.035em;
    }
    .catalog-card p{
      margin:0;
      color:var(--muted);
      font-size:14px;
      line-height:1.75;
    }
    .card-tags{
      display:flex;
      flex-wrap:wrap;
      gap:8px;
      margin-top:18px;
    }

    .recommend-zone{
      background:var(--accent);
      color:#fff;
      position:relative;
      overflow:hidden;
    }
    .recommend-zone::before{
      content:"";
      position:absolute;
      inset:0;
      background:
        radial-gradient(circle at 82% 12%,rgba(216,23,54,.20),transparent 34%),
        linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);
      background-size:auto,42px 42px;
      pointer-events:none;
    }
    .recommend-zone .container{position:relative}
    .recommend-zone .section-title{color:#fff}
    .recommend-zone .section-desc{color:rgba(255,255,255,.68)}
    .vertical-feed{
      display:grid;
      grid-template-columns:1.05fr .95fr 1.05fr .95fr;
      gap:16px;
      align-items:stretch;
    }
    .vertical-card{
      min-height:330px;
      border-radius:28px;
      padding:18px;
      background:
        linear-gradient(180deg,rgba(255,255,255,.13),rgba(255,255,255,.07)),
        rgba(255,255,255,.06);
      border:1px solid rgba(255,255,255,.14);
      display:flex;
      flex-direction:column;
      justify-content:space-between;
      overflow:hidden;
      position:relative;
      transition:var(--ease);
    }
    .vertical-card:nth-child(even){margin-top:34px}
    .vertical-card:hover{
      transform:translateY(-6px);
      border-color:rgba(255,71,95,.55);
      box-shadow:0 24px 48px rgba(0,0,0,.28);
    }
    .cover-visual{
      min-height:150px;
      border-radius:22px;
      background:
        linear-gradient(135deg,rgba(216,23,54,.88),rgba(255,176,32,.34)),
        radial-gradient(circle at 32% 28%,rgba(255,255,255,.38),transparent 24%);
      position:relative;
      overflow:hidden;
    }
    .cover-visual::after{
      content:"";
      position:absolute;
      inset:18px;
      border:1px solid rgba(255,255,255,.24);
      border-radius:18px;
    }
    .vertical-card h3{
      margin:18px 0 8px;
      color:#fff;
      font-size:20px;
      line-height:1.25;
      font-weight:950;
      letter-spacing:-.04em;
    }
    .vertical-card p{
      margin:0;
      color:rgba(255,255,255,.68);
      font-size:14px;
      line-height:1.7;
    }
    .mini-action{
      margin-top:18px;
      display:inline-flex;
      align-items:center;
      gap:8px;
      color:#fff;
      font-weight:900;
      font-size:14px;
    }
    .mini-action:hover{color:#ffd7de}

    .metrics-grid{
      display:grid;
      grid-template-columns:1.1fr .9fr;
      gap:22px;
      align-items:stretch;
    }
    .dashboard-card{
      border-radius:30px;
      background:#fff;
      border:1px solid var(--line);
      box-shadow:var(--shadow-sm);
      padding:24px;
      overflow:hidden;
    }
    .metric-bars{
      display:grid;
      gap:16px;
      margin-top:20px;
    }
    .bar-row{
      display:grid;
      gap:8px;
    }
    .bar-top{
      display:flex;
      justify-content:space-between;
      color:#525b6f;
      font-size:14px;
      font-weight:850;
    }
    .bar{
      height:12px;
      border-radius:999px;
      background:#edf1f8;
      overflow:hidden;
    }
    .bar i{
      display:block;
      height:100%;
      border-radius:inherit;
      background:linear-gradient(90deg,var(--primary),var(--primary-2));
    }
    .radar-list{
      display:grid;
      grid-template-columns:repeat(2,1fr);
      gap:14px;
    }
    .radar-item{
      min-height:150px;
      padding:18px;
      border-radius:22px;
      border:1px solid var(--line);
      background:#fff;
      box-shadow:var(--shadow-sm);
      transition:var(--ease);
    }
    .radar-item:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
    .radar-icon{
      width:42px;
      height:42px;
      border-radius:16px;
      background:rgba(216,23,54,.09);
      color:var(--primary);
      display:grid;
      place-items:center;
      font-weight:950;
      margin-bottom:12px;
    }
    .radar-item strong{
      display:block;
      font-size:19px;
      letter-spacing:-.03em;
    }
    .radar-item span{
      display:block;
      margin-top:7px;
      color:var(--muted);
      font-size:14px;
      line-height:1.65;
    }

    .compare-wrap{
      display:grid;
      grid-template-columns:.82fr 1.18fr;
      gap:22px;
      align-items:start;
    }
    .compare-callout{
      border-radius:30px;
      padding:28px;
      color:#fff;
      background:
        radial-gradient(circle at 80% 10%,rgba(255,255,255,.14),transparent 30%),
        linear-gradient(135deg,var(--primary-dark),var(--primary));
      box-shadow:var(--shadow-red);
      position:relative;
      overflow:hidden;
    }
    .compare-callout h2{
      color:#fff;
      font-size:34px;
      line-height:1.16;
      letter-spacing:-.055em;
      margin:16px 0 12px;
      font-weight:950;
    }
    .compare-callout p{
      color:rgba(255,255,255,.78);
      margin:0 0 22px;
    }
    .compare-table-card{
      border-radius:30px;
      overflow:hidden;
      background:#fff;
      border:1px solid var(--line);
      box-shadow:var(--shadow-sm);
    }
    .compare-row{
      display:grid;
      grid-template-columns:1fr 1fr 1fr;
      border-bottom:1px solid var(--line);
    }
    .compare-row:last-child{border-bottom:0}
    .compare-cell{
      padding:18px 20px;
      min-height:74px;
      display:flex;
      align-items:center;
      color:#566074;
      font-size:14px;
      line-height:1.55;
      border-right:1px solid var(--line);
    }
    .compare-cell:last-child{border-right:0}
    .compare-row.head .compare-cell{
      background:#111827;
      color:#fff;
      font-weight:950;
      font-size:15px;
    }
    .compare-cell.feature{
      font-weight:900;
      color:var(--ink);
      background:#f9fbff;
    }
    .compare-cell.good{
      color:#22543d;
      background:rgba(43,182,115,.08);
    }
    .compare-cell.normal{
      color:#7a4c00;
      background:rgba(255,176,32,.10);
    }

    .voice-wall{
      display:grid;
      grid-template-columns:repeat(12,1fr);
      gap:16px;
    }
    .voice-bubble{
      grid-column:span 4;
      padding:20px;
      border-radius:26px;
      background:#fff;
      border:1px solid var(--line);
      box-shadow:var(--shadow-sm);
      position:relative;
      transition:var(--ease);
    }
    .voice-bubble:nth-child(2),
    .voice-bubble:nth-child(5){grid-column:span 5}
    .voice-bubble:nth-child(3),
    .voice-bubble:nth-child(6){grid-column:span 3}
    .voice-bubble:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
    .voice-bubble p{
      margin:0;
      color:#3e4657;
      font-size:15px;
      line-height:1.8;
    }
    .voice-user{
      margin-top:18px;
      display:flex;
      align-items:center;
      gap:12px;
    }
    .avatar{
      width:42px;
      height:42px;
      border-radius:50%;
      background:
        linear-gradient(135deg,rgba(216,23,54,.92),rgba(21,27,45,.92));
      display:grid;
      place-items:center;
      color:#fff;
      font-weight:950;
      box-shadow:0 10px 20px rgba(216,23,54,.18);
    }
    .voice-user strong{
      display:block;
      font-size:14px;
      line-height:1.2;
    }
    .voice-user span{
      display:block;
      color:var(--soft);
      font-size:12px;
      margin-top:3px;
    }

    .news-layout{
      display:grid;
      grid-template-columns:1.35fr .65fr;
      gap:22px;
      align-items:start;
    }
    .news-list{
      background:#fff;
      border:1px solid var(--line);
      border-radius:30px;
      box-shadow:var(--shadow-sm);
      overflow:hidden;
    }
    .news-item{
      display:grid;
      grid-template-columns:130px 1fr auto;
      gap:18px;
      align-items:center;
      padding:20px 22px;
      border-bottom:1px solid var(--line);
      transition:var(--ease);
    }
    .news-item:last-child{border-bottom:0}
    .news-item:hover{
      background:#fafbff;
      transform:translateX(4px);
    }
    .news-date{
      color:var(--soft);
      font-weight:850;
      font-size:13px;
    }
    .news-main a{
      display:inline;
      color:var(--ink);
      font-weight:950;
      font-size:18px;
      line-height:1.42;
      letter-spacing:-.02em;
    }
    .news-main a:hover{color:var(--primary)}
    .news-main p{
      margin:7px 0 0;
      color:var(--muted);
      font-size:14px;
      line-height:1.65;
    }
    .arrow-chip{
      width:38px;
      height:38px;
      border-radius:14px;
      display:grid;
      place-items:center;
      color:var(--primary);
      background:rgba(216,23,54,.08);
      font-weight:950;
      transition:var(--ease);
    }
    .news-item:hover .arrow-chip{
      background:var(--primary);
      color:#fff;
    }
    .side-panel{
      border-radius:30px;
      background:#fff;
      border:1px solid var(--line);
      box-shadow:var(--shadow-sm);
      padding:22px;
    }
    .side-panel h3{
      margin:0 0 14px;
      font-size:22px;
      font-weight:950;
      letter-spacing:-.04em;
    }
    .topic-list{
      display:grid;
      gap:10px;
      margin:0;
      padding:0;
      list-style:none;
    }
    .topic-list a{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      padding:13px 14px;
      border-radius:16px;
      color:#4f586b;
      background:#f7f9fd;
      border:1px solid #edf0f6;
      font-weight:800;
      font-size:14px;
    }
    .topic-list a:hover{
      color:var(--primary);
      background:#fff;
      border-color:rgba(216,23,54,.20);
      transform:translateX(3px);
    }

    .faq-grid{
      display:grid;
      grid-template-columns:.8fr 1.2fr;
      gap:24px;
      align-items:start;
    }
    .faq-aside{
      border-radius:30px;
      padding:26px;
      background:
        linear-gradient(135deg,#111827,#212b45);
      color:#fff;
      box-shadow:var(--shadow);
      position:sticky;
      top:96px;
    }
    .faq-aside h2{
      color:#fff;
      margin:14px 0 12px;
      font-size:34px;
      line-height:1.15;
      letter-spacing:-.055em;
      font-weight:950;
    }
    .faq-aside p{margin:0;color:rgba(255,255,255,.70)}
    .faq-list{
      display:grid;
      gap:14px;
    }
    .faq-item{
      border:1px solid var(--line);
      border-radius:22px;
      background:#fff;
      box-shadow:var(--shadow-sm);
      overflow:hidden;
    }
    .faq-question{
      width:100%;
      border:0;
      background:#fff;
      color:var(--ink);
      padding:18px 20px;
      display:flex;
      justify-content:space-between;
      align-items:center;
      gap:18px;
      text-align:left;
      font-weight:950;
      letter-spacing:-.02em;
    }
    .faq-question:hover{color:var(--primary);background:#fbfcff}
    .faq-question i{
      width:28px;
      height:28px;
      border-radius:10px;
      background:#f1f4fa;
      display:grid;
      place-items:center;
      font-style:normal;
      flex:0 0 auto;
      transition:var(--ease);
    }
    .faq-item.open .faq-question i{
      background:var(--primary);
      color:#fff;
      transform:rotate(45deg);
    }
    .faq-answer{
      display:none;
      padding:0 20px 20px;
      color:var(--muted);
      font-size:15px;
      line-height:1.85;
    }
    .faq-item.open .faq-answer{display:block}

    .share-section{
      padding-bottom:96px;
    }
    .share-card{
      display:grid;
      grid-template-columns:1fr .88fr;
      gap:22px;
      border-radius:34px;
      background:
        linear-gradient(135deg,rgba(255,255,255,.94),rgba(255,255,255,.78));
      border:1px solid var(--line);
      box-shadow:var(--shadow);
      padding:24px;
      overflow:hidden;
      position:relative;
    }
    .share-card::before{
      content:"";
      position:absolute;
      width:360px;
      height:360px;
      right:-160px;
      top:-160px;
      border-radius:50%;
      background:rgba(216,23,54,.08);
    }
    .share-info{
      position:relative;
      padding:20px;
      display:flex;
      flex-direction:column;
      justify-content:center;
    }
    .share-info h2{
      margin:14px 0 12px;
      font-size:clamp(30px,3.5vw,48px);
      line-height:1.12;
      letter-spacing:-.06em;
      font-weight:950;
    }
    .share-info p{
      margin:0;
      color:var(--muted);
      max-width:640px;
    }
    .share-actions{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      margin-top:24px;
    }
    .contact-panel{
      position:relative;
      border-radius:28px;
      background:var(--accent);
      color:#fff;
      padding:24px;
      border:1px solid rgba(255,255,255,.12);
      box-shadow:0 22px 44px rgba(18,21,32,.20);
    }
    .contact-panel h3{
      margin:0 0 14px;
      color:#fff;
      font-size:24px;
      font-weight:950;
      letter-spacing:-.04em;
    }
    .contact-panel .field label{color:rgba(255,255,255,.72)}
    .contact-panel .field input,
    .contact-panel .field select{
      background:rgba(255,255,255,.08);
      border-color:rgba(255,255,255,.15);
      color:#fff;
    }
    .contact-panel .field input::placeholder{color:rgba(255,255,255,.42)}
    .contact-panel .field input:focus,
    .contact-panel .field select:focus{
      background:rgba(255,255,255,.12);
      border-color:rgba(255,255,255,.35);
      box-shadow:0 0 0 4px rgba(255,255,255,.08);
    }
    .contact-panel select option{color:#111827}
    .contact-panel .form-note{color:rgba(255,255,255,.58)}
    .copy-tip{
      display:none;
      margin-top:12px;
      color:#cfffe5;
      font-weight:850;
      font-size:13px;
    }
    .copy-tip.show{display:block}

    .site-footer{
      color:#cbd3e6;
      background:
        radial-gradient(circle at 12% 0,rgba(216,23,54,.20),transparent 28%),
        #0c111f;
      border-top:1px solid rgba(255,255,255,.08);
      padding:54px 0 26px;
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.1fr .9fr .9fr;
      gap:28px;
      padding-bottom:34px;
      border-bottom:1px solid rgba(255,255,255,.10);
    }
    .footer-brand{
      display:flex;
      align-items:center;
      gap:12px;
      color:#fff;
      font-weight:950;
      letter-spacing:-.04em;
      font-size:18px;
      margin-bottom:14px;
    }
    .footer-brand .brand-mark{
      width:36px;
      height:36px;
      box-shadow:none;
    }
    .footer-desc{
      margin:0;
      max-width:470px;
      color:rgba(203,211,230,.72);
      font-size:14px;
    }
    .footer-block h3{
      margin:0 0 14px;
      color:#fff;
      font-size:16px;
      font-weight:950;
    }
    .footer-links{
      list-style:none;
      margin:0;
      padding:0;
      display:grid;
      gap:10px;
    }
    .footer-links a{
      color:rgba(203,211,230,.74);
      font-size:14px;
    }
    .footer-links a:hover{color:#fff;transform:translateX(3px)}
    .footer-bottom{
      display:flex;
      justify-content:space-between;
      gap:18px;
      align-items:center;
      padding-top:22px;
      color:rgba(203,211,230,.58);
      font-size:13px;
    }
    .footer-badges{
      display:flex;
      flex-wrap:wrap;
      gap:8px;
    }
    .footer-badges span{
      padding:6px 10px;
      border-radius:999px;
      background:rgba(255,255,255,.07);
      border:1px solid rgba(255,255,255,.09);
    }

    .floating-cta{
      position:fixed;
      left:50%;
      bottom:18px;
      transform:translateX(-50%);
      z-index:45;
      display:flex;
      align-items:center;
      gap:14px;
      padding:10px 12px 10px 16px;
      border-radius:999px;
      background:rgba(17,24,39,.92);
      color:#fff;
      box-shadow:0 18px 45px rgba(17,24,39,.24);
      border:1px solid rgba(255,255,255,.12);
      backdrop-filter:blur(14px);
    }
    .floating-cta span{
      font-size:13px;
      font-weight:850;
      white-space:nowrap;
      color:rgba(255,255,255,.78);
    }
    .floating-cta .btn{
      min-height:38px;
      padding:0 15px;
      font-size:13px;
      box-shadow:none;
    }

    @media screen and (max-width: 1024px){
      :root{--section:72px}
      .desktop-nav{display:none}
      .command-search,.quick-link,.nav-actions .btn{display:none}
      .menu-toggle{display:flex}
      .hero-inner{grid-template-columns:1fr 1fr}
      .whitepaper-cover{min-height:360px}
      .lead-card{grid-column:1 / -1}
      .catalog-layout,
      .metrics-grid,
      .compare-wrap,
      .faq-grid,
      .share-card,
      .news-layout{grid-template-columns:1fr}
      .catalog-panel,
      .faq-aside{position:static}
      .vertical-feed{grid-template-columns:repeat(2,1fr)}
      .vertical-card:nth-child(even){margin-top:0}
      .footer-grid{grid-template-columns:1fr 1fr}
      .footer-grid>div:first-child{grid-column:1/-1}
    }

    @media screen and (max-width: 768px){
      .container{width:min(calc(100% - 28px), var(--container))}
      .section-head{
        flex-direction:column;
        align-items:flex-start;
        gap:16px;
      }
      .section-action{width:100%;flex-wrap:wrap}
      .hero{padding-top:24px}
      .hero-board{border-radius:26px}
      .hero-inner{
        grid-template-columns:1fr;
        padding:16px;
      }
      .hero-copy{padding:4px}
      .hero h1{font-size:40px}
      .hero-lead{font-size:15px}
      .hero-points{grid-template-columns:1fr}
      .whitepaper-cover{min-height:300px}
      .cover-title{font-size:27px}
      .catalog-grid,
      .radar-list,
      .vertical-feed{grid-template-columns:1fr}
      .compare-row{grid-template-columns:1fr}
      .compare-cell{
        border-right:0;
        border-bottom:1px solid var(--line);
      }
      .compare-row .compare-cell:last-child{border-bottom:0}
      .voice-wall{grid-template-columns:1fr}
      .voice-bubble,
      .voice-bubble:nth-child(2),
      .voice-bubble:nth-child(3),
      .voice-bubble:nth-child(5),
      .voice-bubble:nth-child(6){grid-column:auto}
      .news-item{
        grid-template-columns:1fr;
        gap:8px;
      }
      .arrow-chip{display:none}
      .share-info{padding:8px}
      .footer-grid{grid-template-columns:1fr}
      .footer-bottom{
        flex-direction:column;
        align-items:flex-start;
      }
      .floating-cta{
        width:calc(100% - 24px);
        justify-content:space-between;
        border-radius:18px;
      }
      .floating-cta span{
        white-space:normal;
        line-height:1.35;
      }
    }

    @media screen and (max-width: 520px){
      :root{--section:58px;--nav-h:66px}
      .brand-text{font-size:15px;max-width:210px}
      .brand-mark{width:34px;height:34px;border-radius:12px}
      .hero h1{font-size:34px}
      .btn{width:100%;min-height:48px}
      .hero-cta .btn{width:100%}
      .whitepaper-cover{padding:18px}
      .lead-card{border-radius:22px}
      .toc-box,.download-form{padding-left:18px;padding-right:18px}
      .section-title{font-size:30px}
      .compare-callout h2,
      .faq-aside h2{font-size:30px}
      .share-actions .btn{width:100%}
      .footer-badges{width:100%}
      .floating-cta{display:none}
    }