/* roulang page: index */
:root{
      --bg:#07111f;
      --bg-2:#0b1d34;
      --bg-3:#0e2745;
      --panel:rgba(16,39,70,.68);
      --panel-strong:rgba(20,51,91,.88);
      --glass:rgba(255,255,255,.08);
      --glass-2:rgba(255,255,255,.12);
      --text:#eef7ff;
      --muted:#a9bfd6;
      --weak:#7690aa;
      --line:rgba(161,197,255,.18);
      --line-strong:rgba(161,197,255,.32);
      --primary:#4dd8ff;
      --primary-2:#1e8fff;
      --accent:#8b5cf6;
      --success:#4ade80;
      --warning:#fbbf24;
      --danger:#fb7185;
      --white:#ffffff;
      --dark:#05101d;
      --radius-sm:12px;
      --radius:20px;
      --radius-lg:30px;
      --shadow:0 24px 80px rgba(0,0,0,.34);
      --shadow-soft:0 14px 44px rgba(0,0,0,.22);
      --glow:0 0 34px rgba(77,216,255,.34), 0 0 70px rgba(139,92,246,.18);
      --container:1180px;
      --ease:all .22s ease;
    }
    *{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(--text);
      line-height:1.7;
      background:
        radial-gradient(circle at 12% 8%, rgba(77,216,255,.24), transparent 34%),
        radial-gradient(circle at 82% 18%, rgba(139,92,246,.22), transparent 32%),
        linear-gradient(180deg,#07111f 0%,#081525 38%,#06101d 100%);
      overflow-x:hidden;
    }
    body::before{
      content:"";
      position:fixed;
      inset:0;
      pointer-events:none;
      background-image:
        linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,.035) 1px, transparent 1px);
      background-size:42px 42px;
      mask-image:linear-gradient(180deg,rgba(0,0,0,.85),transparent 78%);
      z-index:-2;
    }
    a{color:inherit;text-decoration:none;transition:var(--ease)}
    a:hover,a:focus{color:var(--primary)}
    img{max-width:100%;height:auto;display:block}
    button,input,select,textarea{font:inherit}
    button{cursor:pointer}
    ::selection{background:rgba(77,216,255,.32);color:var(--white)}
    .container{
      width:min(calc(100% - 32px),var(--container));
      margin-inline:auto;
    }
    .skip-link{
      position:absolute;left:-999px;top:10px;background:var(--primary);color:#03101d;
      padding:10px 14px;border-radius:10px;z-index:999;
    }
    .skip-link:focus{left:12px}
    .site-header{
      position:sticky;
      top:0;
      z-index:90;
      backdrop-filter:blur(18px);
      background:rgba(5,16,29,.76);
      border-bottom:1px solid var(--line);
    }
    .nav-wrap{
      min-height:76px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
    }
    .brand{
      display:flex;
      align-items:center;
      gap:12px;
      font-weight:900;
      letter-spacing:.4px;
      font-size:1.28rem;
      color:var(--white);
    }
    .brand-mark{
      width:42px;height:42px;border-radius:14px;
      display:grid;place-items:center;
      color:#03101d;
      background:linear-gradient(135deg,var(--primary),#9af7ff 42%,var(--accent));
      box-shadow:var(--glow);
      font-size:.92rem;
      font-weight:950;
    }
    .desktop-nav{
      display:flex;
      align-items:center;
      gap:8px;
      margin-left:auto;
    }
    .nav-link{
      padding:10px 14px;
      border-radius:999px;
      color:var(--muted);
      font-weight:700;
      font-size:.96rem;
    }
    .nav-link:hover,.nav-link:focus,.nav-link.active{
      color:var(--white);
      background:rgba(255,255,255,.08);
    }
    .nav-actions{
      display:flex;
      align-items:center;
      gap:10px;
    }
    .menu-toggle{
      display:none;
      width:44px;height:44px;border:1px solid var(--line);
      border-radius:14px;background:rgba(255,255,255,.06);
      color:var(--white);
    }
    .mobile-drawer{
      display:none;
      border-top:1px solid var(--line);
      padding:12px 0 18px;
    }
    .mobile-drawer.open{display:block}
    .mobile-drawer a{display:block;margin:8px 0}
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:9px;
      min-height:44px;
      padding:12px 18px;
      border-radius:999px;
      border:1px solid transparent;
      font-weight:850;
      line-height:1;
      transition:var(--ease);
      user-select:none;
      white-space:nowrap;
    }
    .btn-primary{
      color:#03101d;
      background:linear-gradient(135deg,var(--primary),#83efff 45%,#b6a4ff);
      box-shadow:var(--glow);
    }
    .btn-primary:hover,.btn-primary:focus{
      transform:translateY(-2px);
      color:#03101d;
      box-shadow:0 0 42px rgba(77,216,255,.46),0 20px 58px rgba(30,143,255,.24);
    }
    .btn-secondary{
      color:var(--text);
      background:rgba(255,255,255,.08);
      border-color:var(--line-strong);
    }
    .btn-secondary:hover,.btn-secondary:focus{
      background:rgba(255,255,255,.13);
      color:var(--white);
      transform:translateY(-1px);
      border-color:rgba(77,216,255,.5);
    }
    .btn-ghost{
      color:var(--primary);
      background:rgba(77,216,255,.08);
      border-color:rgba(77,216,255,.24);
    }
    .btn-ghost:hover{background:rgba(77,216,255,.15);color:#bdf7ff}
    .badge{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:7px 11px;
      border-radius:999px;
      border:1px solid var(--line);
      color:#cdf7ff;
      background:rgba(77,216,255,.08);
      font-weight:800;
      font-size:.82rem;
    }
    .section{
      padding:86px 0;
      position:relative;
    }
    .section-tight{padding:64px 0}
    .section-head{
      display:flex;
      justify-content:space-between;
      align-items:flex-end;
      gap:24px;
      margin-bottom:30px;
    }
    .section-title{
      margin:14px 0 0;
      font-size:clamp(1.85rem,3.2vw,3rem);
      line-height:1.15;
      letter-spacing:-.04em;
      font-weight:950;
      color:var(--white);
    }
    .section-desc{
      max-width:680px;
      color:var(--muted);
      margin:14px 0 0;
      font-size:1.04rem;
    }
    .hero{
      padding:72px 0 52px;
    }
    .hero-card{
      position:relative;
      overflow:hidden;
      border:1px solid var(--line);
      border-radius:var(--radius-lg);
      background:
        linear-gradient(135deg,rgba(255,255,255,.12),rgba(255,255,255,.04)),
        radial-gradient(circle at 20% 10%,rgba(77,216,255,.24),transparent 34%),
        radial-gradient(circle at 80% 40%,rgba(139,92,246,.24),transparent 40%);
      box-shadow:var(--shadow);
      padding:36px;
    }
    .hero-card::after{
      content:"";
      position:absolute;
      right:-120px;top:-120px;
      width:320px;height:320px;border-radius:50%;
      background:rgba(77,216,255,.14);
      filter:blur(10px);
    }
    .hero-layout{
      position:relative;
      z-index:1;
      display:grid;
      grid-template-columns:1.05fr .95fr;
      gap:30px;
      align-items:stretch;
    }
    h1{
      margin:18px 0 16px;
      font-size:clamp(2.35rem,5.2vw,5.35rem);
      line-height:1.02;
      letter-spacing:-.07em;
      font-weight:980;
      color:var(--white);
      max-width:760px;
    }
    .hero-lead{
      color:#c4d6e9;
      font-size:1.16rem;
      max-width:760px;
      margin:0 0 22px;
    }
    .hero-points{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      margin:26px 0 0;
    }
    .point{
      display:flex;
      align-items:center;
      gap:9px;
      padding:10px 13px;
      border:1px solid var(--line);
      background:rgba(2,12,24,.28);
      border-radius:999px;
      color:#d6e9fb;
      font-weight:750;
      font-size:.93rem;
    }
    .point i{color:var(--success)}
    .whitepaper{
      display:grid;
      grid-template-columns:.9fr 1fr;
      gap:18px;
      min-height:100%;
    }
    .cover{
      border-radius:24px;
      padding:22px;
      min-height:330px;
      background:
        linear-gradient(160deg,rgba(5,16,29,.94),rgba(16,39,70,.66)),
        linear-gradient(135deg,var(--primary),var(--accent));
      border:1px solid rgba(255,255,255,.18);
      box-shadow:inset 0 1px 0 rgba(255,255,255,.15),var(--shadow-soft);
      display:flex;
      flex-direction:column;
      justify-content:space-between;
      position:relative;
      overflow:hidden;
    }
    .cover::before{
      content:"";
      position:absolute;
      width:160px;height:160px;border-radius:42px;
      right:-50px;bottom:-46px;
      background:linear-gradient(135deg,rgba(77,216,255,.5),rgba(139,92,246,.35));
      transform:rotate(18deg);
      filter:blur(.2px);
    }
    .cover-kicker{color:var(--primary);font-weight:900;font-size:.9rem}
    .cover-title{font-size:2.1rem;line-height:1.1;font-weight:950;margin:14px 0;color:var(--white)}
    .cover-meta{color:var(--muted);font-size:.95rem;position:relative;z-index:1}
    .download-panel{
      border-radius:24px;
      background:rgba(4,16,31,.52);
      border:1px solid var(--line);
      padding:20px;
      backdrop-filter:blur(14px);
    }
    .toc{
      margin:0 0 18px;
      padding:0;
      list-style:none;
      display:grid;
      gap:10px;
    }
    .toc li{
      display:flex;
      align-items:center;
      gap:10px;
      color:#d6e9fb;
      padding:10px 0;
      border-bottom:1px solid rgba(255,255,255,.08);
      font-weight:750;
    }
    .toc span{
      width:26px;height:26px;border-radius:9px;
      display:grid;place-items:center;
      background:rgba(77,216,255,.12);
      color:var(--primary);
      font-size:.82rem;
      flex:none;
    }
    .lead-form{
      display:grid;
      gap:10px;
    }
    .lead-form label{
      color:#d7e6f6;
      font-weight:850;
      font-size:.92rem;
    }
    .field{
      width:100%;
      height:48px;
      border-radius:14px;
      border:1px solid var(--line-strong);
      color:var(--white);
      background:rgba(255,255,255,.07);
      padding:0 14px;
      outline:none;
      box-shadow:none;
      margin:0;
    }
    .field::placeholder{color:#8aa2bb}
    .field:focus{
      border-color:var(--primary);
      box-shadow:0 0 0 4px rgba(77,216,255,.13);
      background:rgba(255,255,255,.1);
    }
    .form-note{
      color:var(--weak);
      font-size:.82rem;
      margin:2px 0 0;
    }
    .form-message{
      min-height:24px;
      color:#bdf7ff;
      font-weight:800;
      font-size:.9rem;
    }
    .kpi-wrap{
      display:grid;
      grid-template-columns:1.1fr .9fr;
      gap:24px;
      align-items:stretch;
    }
    .glass-card{
      border:1px solid var(--line);
      background:linear-gradient(180deg,rgba(255,255,255,.09),rgba(255,255,255,.045));
      border-radius:var(--radius);
      padding:24px;
      box-shadow:var(--shadow-soft);
      backdrop-filter:blur(14px);
      transition:var(--ease);
    }
    .glass-card:hover{
      transform:translateY(-4px);
      border-color:rgba(77,216,255,.42);
      box-shadow:0 24px 70px rgba(0,0,0,.3);
    }
    .intro-card p{color:var(--muted);margin:0}
    .metric-grid{
      display:grid;
      grid-template-columns:repeat(2,1fr);
      gap:14px;
    }
    .metric{
      padding:18px;
      border-radius:18px;
      background:rgba(255,255,255,.06);
      border:1px solid rgba(255,255,255,.1);
    }
    .metric strong{
      display:block;
      font-size:2.05rem;
      line-height:1;
      color:var(--white);
      letter-spacing:-.04em;
    }
    .metric span{display:block;color:var(--muted);margin-top:8px;font-size:.93rem}
    .news-layout{
      display:grid;
      grid-template-columns:1.45fr .72fr;
      gap:24px;
    }
    .news-list{
      border:1px solid var(--line);
      border-radius:var(--radius);
      overflow:hidden;
      background:rgba(255,255,255,.055);
    }
    .news-item{
      display:grid;
      grid-template-columns:112px 1fr auto;
      gap:18px;
      align-items:center;
      padding:20px;
      border-bottom:1px solid rgba(255,255,255,.08);
      transition:var(--ease);
    }
    .news-item:last-child{border-bottom:0}
    .news-item:hover{
      background:rgba(77,216,255,.07);
      transform:translateX(2px);
    }
    .news-date{
      color:var(--primary);
      font-weight:900;
      font-size:.95rem;
    }
    .news-title{
      margin:0 0 5px;
      font-weight:900;
      color:var(--white);
      font-size:1.08rem;
    }
    .news-summary{
      margin:0;
      color:var(--muted);
      font-size:.94rem;
    }
    .arrow{
      width:38px;height:38px;border-radius:50%;
      display:grid;place-items:center;
      border:1px solid var(--line);
      color:var(--primary);
      flex:none;
    }
    .recommend{
      display:flex;
      flex-direction:column;
      gap:14px;
    }
    .recommend-card{
      border-radius:var(--radius);
      padding:22px;
      min-height:142px;
      background:
        linear-gradient(135deg,rgba(77,216,255,.16),rgba(139,92,246,.1)),
        rgba(255,255,255,.06);
      border:1px solid var(--line);
    }
    .recommend-card h3,.service-card h3,.scenario h3,.price-card h3,.faq-question,.catalog-card h3{
      margin:0 0 10px;
      color:var(--white);
      font-weight:930;
      line-height:1.25;
    }
    .recommend-card p,.service-card p,.scenario p,.price-card p,.catalog-card p{color:var(--muted);margin:0}
    .service-stage{
      display:grid;
      grid-template-columns:.82fr 1.18fr;
      gap:24px;
      align-items:start;
    }
    .service-menu{
      position:sticky;
      top:96px;
      display:grid;
      gap:12px;
    }
    .service-pill{
      display:flex;
      align-items:center;
      gap:12px;
      padding:15px;
      border-radius:18px;
      border:1px solid var(--line);
      background:rgba(255,255,255,.06);
      color:#dcecff;
      font-weight:850;
    }
    .service-pill i{
      width:34px;height:34px;border-radius:12px;
      display:grid;place-items:center;
      background:rgba(77,216,255,.12);
      color:var(--primary);
    }
    .service-grid{
      display:grid;
      grid-template-columns:repeat(2,1fr);
      gap:16px;
    }
    .service-card{
      min-height:218px;
      position:relative;
      overflow:hidden;
    }
    .service-card .icon{
      width:48px;height:48px;border-radius:16px;
      display:grid;place-items:center;
      color:#03101d;
      background:linear-gradient(135deg,var(--primary),#d7fbff);
      margin-bottom:18px;
      box-shadow:0 0 26px rgba(77,216,255,.28);
    }
    .service-card::after{
      content:"";
      position:absolute;
      right:-34px;bottom:-34px;
      width:110px;height:110px;border-radius:36px;
      background:rgba(77,216,255,.08);
      transform:rotate(18deg);
    }
    .triple-grid{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:16px;
    }
    .value-card{
      padding:24px;
      border-radius:24px;
      border:1px solid var(--line);
      background:linear-gradient(180deg,rgba(255,255,255,.1),rgba(255,255,255,.04));
      min-height:220px;
    }
    .value-card:nth-child(2){
      background:linear-gradient(180deg,rgba(77,216,255,.18),rgba(255,255,255,.05));
      border-color:rgba(77,216,255,.34);
    }
    .value-icon{
      width:54px;height:54px;border-radius:18px;
      display:grid;place-items:center;
      font-size:1.25rem;
      margin-bottom:18px;
      color:var(--primary);
      background:rgba(77,216,255,.1);
      border:1px solid rgba(77,216,255,.22);
    }
    .value-card h3{font-weight:950;margin:0 0 10px;color:var(--white)}
    .value-card p{margin:0;color:var(--muted)}
    .scenario-grid{
      display:grid;
      grid-template-columns:1.2fr .8fr;
      gap:20px;
    }
    .scenario{
      border-radius:24px;
      padding:24px;
      border:1px solid var(--line);
      background:rgba(255,255,255,.06);
    }
    .scenario.large{
      min-height:310px;
      background:
        linear-gradient(135deg,rgba(77,216,255,.16),rgba(139,92,246,.11)),
        rgba(255,255,255,.06);
    }
    .scenario-list{
      display:grid;
      gap:14px;
    }
    .quote{
      margin-top:22px;
      padding:18px;
      border-left:3px solid var(--primary);
      background:rgba(3,16,29,.34);
      color:#dcecff;
      border-radius:0 16px 16px 0;
    }
    .catalog-grid{
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:16px;
    }
    .catalog-card{
      padding:20px;
      border-radius:22px;
      border:1px solid var(--line);
      background:rgba(255,255,255,.06);
    }
    .catalog-count{
      display:inline-flex;
      margin:14px 0 18px;
      color:var(--warning);
      font-weight:900;
      font-size:.92rem;
    }
    .compare-wrap{
      overflow:auto;
      border:1px solid var(--line);
      border-radius:var(--radius);
      background:rgba(255,255,255,.055);
      box-shadow:var(--shadow-soft);
    }
    .compare-table{
      width:100%;
      min-width:760px;
      border-collapse:separate;
      border-spacing:0;
      margin:0;
      color:var(--text);
    }
    .compare-table th,.compare-table td{
      padding:18px;
      border-bottom:1px solid rgba(255,255,255,.09);
      border-right:1px solid rgba(255,255,255,.08);
      vertical-align:middle;
      background:transparent;
    }
    .compare-table th{
      color:var(--white);
      font-size:1.02rem;
      background:rgba(255,255,255,.06);
    }
    .compare-table td{color:#c6d8ea}
    .compare-table tr:last-child td{border-bottom:0}
    .compare-table th:last-child,.compare-table td:last-child{border-right:0}
    .recommend-col{
      background:linear-gradient(180deg,rgba(77,216,255,.14),rgba(139,92,246,.08))!important;
      box-shadow:inset 0 0 0 1px rgba(77,216,255,.26);
    }
    .check{color:var(--success);font-weight:900}
    .price-note{
      margin-top:16px;
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      color:var(--muted);
    }
    .app-panel{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:24px;
      align-items:center;
      border-radius:var(--radius-lg);
      border:1px solid var(--line);
      background:
        radial-gradient(circle at 18% 20%,rgba(77,216,255,.18),transparent 34%),
        linear-gradient(135deg,rgba(255,255,255,.1),rgba(255,255,255,.04));
      padding:30px;
      box-shadow:var(--shadow-soft);
    }
    .device-stack{
      min-height:300px;
      position:relative;
      display:grid;
      place-items:center;
    }
    .device{
      width:min(92%,420px);
      border-radius:28px;
      border:1px solid var(--line-strong);
      background:rgba(3,16,29,.58);
      padding:18px;
      box-shadow:var(--shadow);
    }
    .device-bar{
      display:flex;gap:8px;margin-bottom:18px;
    }
    .dot{width:10px;height:10px;border-radius:50%;background:var(--danger)}
    .dot:nth-child(2){background:var(--warning)}
    .dot:nth-child(3){background:var(--success)}
    .device-line{
      height:14px;border-radius:999px;
      background:rgba(255,255,255,.1);
      margin:12px 0;
    }
    .device-line.short{width:62%}
    .download-actions{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      margin-top:22px;
    }
    .guarantee-strip{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:16px;
    }
    .guarantee{
      display:flex;
      gap:14px;
      padding:20px;
      border-radius:22px;
      border:1px solid var(--line);
      background:rgba(255,255,255,.06);
    }
    .guarantee i{
      width:42px;height:42px;border-radius:15px;display:grid;place-items:center;
      background:rgba(74,222,128,.1);
      color:var(--success);
      flex:none;
    }
    .guarantee strong{display:block;color:var(--white);margin-bottom:4px}
    .guarantee span{color:var(--muted);font-size:.94rem}
    .faq-layout{
      display:grid;
      grid-template-columns:.72fr 1.28fr;
      gap:24px;
      align-items:start;
    }
    .faq-list{
      display:grid;
      gap:12px;
    }
    .faq-item{
      border:1px solid var(--line);
      border-radius:20px;
      background:rgba(255,255,255,.06);
      overflow:hidden;
    }
    .faq-question{
      width:100%;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:16px;
      padding:20px;
      background:transparent;
      border:0;
      color:var(--white);
      text-align:left;
      cursor:pointer;
    }
    .faq-question i{color:var(--primary);transition:var(--ease)}
    .faq-answer{
      display:none;
      padding:0 20px 20px;
      color:var(--muted);
    }
    .faq-item.open .faq-answer{display:block}
    .faq-item.open .faq-question i{transform:rotate(180deg)}
    .cta-band{
      margin:18px 0 0;
      border-radius:var(--radius-lg);
      padding:32px;
      border:1px solid rgba(77,216,255,.3);
      background:
        linear-gradient(135deg,rgba(77,216,255,.2),rgba(139,92,246,.14)),
        rgba(255,255,255,.06);
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:22px;
      box-shadow:var(--glow);
    }
    .cta-band h2{margin:0 0 8px;color:var(--white);font-weight:950;letter-spacing:-.03em}
    .cta-band p{margin:0;color:#c8d9eb}
    .site-footer{
      padding:46px 0 28px;
      border-top:1px solid var(--line);
      background:rgba(2,10,20,.44);
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.1fr .9fr .8fr;
      gap:24px;
      align-items:start;
    }
    .footer-title{
      font-weight:950;
      color:var(--white);
      font-size:1.2rem;
      margin:0 0 12px;
    }
    .footer-text,.footer-links a,.copyright{
      color:var(--muted);
      font-size:.94rem;
    }
    .footer-links{
      display:grid;
      gap:9px;
    }
    .footer-links a:hover{color:var(--primary);transform:translateX(2px)}
    .copyright{
      margin-top:30px;
      padding-top:18px;
      border-top:1px solid rgba(255,255,255,.08);
      display:flex;
      justify-content:space-between;
      gap:12px;
      flex-wrap:wrap;
    }
    :focus-visible{
      outline:3px solid rgba(77,216,255,.55);
      outline-offset:3px;
    }
    @media (max-width:1024px){
      .hero-layout,.whitepaper,.kpi-wrap,.news-layout,.service-stage,.scenario-grid,.app-panel,.faq-layout{
        grid-template-columns:1fr;
      }
      .service-menu{position:static;grid-template-columns:repeat(2,1fr)}
      .catalog-grid{grid-template-columns:repeat(2,1fr)}
      .footer-grid{grid-template-columns:1fr 1fr}
    }
    @media (max-width:768px){
      .desktop-nav,.nav-actions{display:none}
      .menu-toggle{display:grid;place-items:center}
      .nav-wrap{min-height:66px}
      .hero{padding:34px 0 34px}
      .hero-card{padding:22px;border-radius:24px}
      .section{padding:62px 0}
      .section-tight{padding:48px 0}
      .section-head{display:block}
      .hero-points{gap:8px}
      .point{width:100%;justify-content:flex-start}
      .metric-grid,.service-grid,.triple-grid,.guarantee-strip{grid-template-columns:1fr}
      .news-item{grid-template-columns:1fr;gap:8px}
      .arrow{display:none}
      .service-menu{grid-template-columns:1fr}
      .cta-band{display:block}
      .cta-band .btn{margin-top:18px}
      .footer-grid{grid-template-columns:1fr}
      .cover{min-height:260px}
    }
    @media (max-width:520px){
      .container{width:min(calc(100% - 22px),var(--container))}
      h1{font-size:2.32rem}
      .section-title{font-size:1.82rem}
      .btn{width:100%;padding-inline:14px}
      .hero-card,.app-panel,.cta-band{padding:18px}
      .catalog-grid{grid-template-columns:1fr}
      .download-actions{display:grid}
      .copyright{display:block}
      .mobile-drawer .btn{margin-top:8px}
    }