/* roulang page: index */
:root{
      --bg:#06111f;
      --bg-2:#081a2e;
      --panel:rgba(16,36,62,.72);
      --panel-strong:rgba(20,49,84,.88);
      --panel-soft:rgba(255,255,255,.06);
      --primary:#41d8ff;
      --primary-2:#6c7cff;
      --accent:#7df2b5;
      --gold:#ffd166;
      --danger:#ff6b8a;
      --text:#eef7ff;
      --muted:#9db2c9;
      --muted-2:#6f879f;
      --line:rgba(165,209,255,.16);
      --line-strong:rgba(105,216,255,.34);
      --shadow:0 24px 70px rgba(0,0,0,.34);
      --shadow-soft:0 16px 40px rgba(0,0,0,.22);
      --radius-xl:30px;
      --radius-lg:22px;
      --radius-md:16px;
      --radius-sm:12px;
      --side:288px;
      --ease:all .24s ease;
      --font:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",Arial,sans-serif;
    }

    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      min-height:100vh;
      background:
        radial-gradient(circle at 12% 8%, rgba(65,216,255,.22), transparent 32%),
        radial-gradient(circle at 82% 18%, rgba(108,124,255,.18), transparent 30%),
        linear-gradient(180deg,#04101d 0%,#071525 42%,#050b15 100%);
      color:var(--text);
      font-family:var(--font);
      line-height:1.75;
      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:38px 38px;
      mask-image:linear-gradient(to bottom, rgba(0,0,0,.7), transparent 78%);
      z-index:-1;
    }
    a{color:inherit;text-decoration:none;transition:var(--ease)}
    a:hover{color:var(--primary)}
    img{max-width:100%;height:auto;display:block}
    button,input,textarea{font:inherit}
    button{cursor:pointer;border:0}
    ::selection{background:rgba(65,216,255,.25);color:#fff}

    .skip-link{
      position:absolute;
      left:-999px;
      top:12px;
      z-index:9999;
      padding:10px 14px;
      border-radius:10px;
      background:#fff;
      color:#071525;
    }
    .skip-link:focus{left:14px}

    .app-shell{
      display:flex;
      min-height:100vh;
    }

    .sidebar{
      position:fixed;
      inset:0 auto 0 0;
      width:var(--side);
      padding:24px 18px;
      background:linear-gradient(180deg,rgba(4,16,29,.88),rgba(8,26,46,.78));
      border-right:1px solid var(--line);
      backdrop-filter:blur(22px);
      z-index:40;
      display:flex;
      flex-direction:column;
      gap:20px;
      box-shadow:12px 0 50px rgba(0,0,0,.22);
    }
    .brand{
      display:flex;
      align-items:center;
      gap:12px;
      min-height:52px;
      padding:8px 8px;
      border-radius:18px;
      outline:none;
    }
    .brand:focus-visible,.nav-link:focus-visible,.btn:focus-visible,.field:focus-visible,.footer-link:focus-visible{
      outline:3px solid rgba(65,216,255,.42);
      outline-offset:3px;
    }
    .brand-mark{
      width:42px;
      height:42px;
      flex:0 0 42px;
      border-radius:16px;
      background:
        radial-gradient(circle at 30% 20%,rgba(255,255,255,.92),transparent 18%),
        linear-gradient(135deg,var(--primary),var(--primary-2));
      box-shadow:0 0 32px rgba(65,216,255,.4);
      display:grid;
      place-items:center;
      color:#02111f;
      font-weight:900;
      letter-spacing:-.04em;
    }
    .brand-text{
      display:flex;
      flex-direction:column;
      gap:0;
    }
    .brand-text strong{
      font-size:17px;
      line-height:1.25;
      letter-spacing:.01em;
    }
    .brand-text span{
      color:var(--muted);
      font-size:12px;
    }

    .nav-panel{
      padding:10px;
      border:1px solid var(--line);
      border-radius:var(--radius-lg);
      background:rgba(255,255,255,.04);
    }
    .nav-title{
      margin:4px 8px 10px;
      color:var(--muted-2);
      font-size:12px;
      letter-spacing:.14em;
    }
    .nav-list{
      list-style:none;
      margin:0;
      padding:0;
      display:grid;
      gap:8px;
    }
    .nav-link{
      display:flex;
      align-items:center;
      gap:12px;
      min-height:46px;
      padding:11px 12px;
      border-radius:15px;
      color:#d7e8f7;
      border:1px solid transparent;
    }
    .nav-link i{width:20px;text-align:center;color:var(--primary)}
    .nav-link:hover{
      background:rgba(65,216,255,.08);
      border-color:rgba(65,216,255,.18);
      transform:translateX(2px);
    }
    .nav-link.active{
      background:linear-gradient(135deg,rgba(65,216,255,.18),rgba(108,124,255,.16));
      border-color:var(--line-strong);
      color:#fff;
      box-shadow:inset 0 0 28px rgba(65,216,255,.08);
    }

    .sidebar-search{
      margin-top:2px;
      padding:14px;
      border:1px solid var(--line);
      border-radius:var(--radius-lg);
      background:rgba(3,13,24,.38);
    }
    .search-label{
      display:flex;
      align-items:center;
      gap:8px;
      color:#dcecff;
      font-weight:700;
      margin-bottom:10px;
      font-size:14px;
    }
    .search-wrap{
      display:flex;
      gap:8px;
      align-items:center;
      background:rgba(255,255,255,.07);
      border:1px solid rgba(255,255,255,.11);
      border-radius:14px;
      padding:6px;
    }
    .search-wrap:focus-within{
      border-color:rgba(65,216,255,.52);
      box-shadow:0 0 0 4px rgba(65,216,255,.10);
    }
    .field{
      width:100%;
      margin:0;
      height:38px;
      color:#fff;
      background:transparent;
      border:0;
      box-shadow:none;
      padding:0 8px;
    }
    .field::placeholder{color:#7f95aa}
    .field:focus{
      background:transparent;
      border:0;
      box-shadow:none;
    }
    .icon-submit{
      width:38px;
      height:38px;
      border-radius:12px;
      display:grid;
      place-items:center;
      color:#06111f;
      background:linear-gradient(135deg,var(--primary),var(--accent));
      box-shadow:0 0 20px rgba(65,216,255,.22);
      transition:var(--ease);
    }
    .icon-submit:hover{transform:translateY(-1px);filter:saturate(1.12)}

    .side-note{
      margin-top:auto;
      padding:16px;
      border-radius:var(--radius-lg);
      background:
        linear-gradient(135deg,rgba(125,242,181,.11),rgba(65,216,255,.08));
      border:1px solid rgba(125,242,181,.18);
    }
    .side-note strong{display:block;font-size:15px;margin-bottom:6px}
    .side-note p{margin:0;color:var(--muted);font-size:13px;line-height:1.65}

    .mobile-topbar{
      display:none;
      position:sticky;
      top:0;
      z-index:60;
      padding:12px 16px;
      background:rgba(4,16,29,.86);
      border-bottom:1px solid var(--line);
      backdrop-filter:blur(18px);
      align-items:center;
      justify-content:space-between;
    }
    .mobile-brand{
      display:flex;
      align-items:center;
      gap:10px;
      font-weight:900;
    }
    .menu-toggle{
      width:44px;
      height:44px;
      border-radius:14px;
      color:#fff;
      background:rgba(255,255,255,.08);
      border:1px solid var(--line);
      transition:var(--ease);
    }
    .menu-toggle:hover,.menu-toggle.active{
      background:rgba(65,216,255,.16);
      border-color:var(--line-strong);
    }

    .main-wrap{
      width:100%;
      margin-left:var(--side);
    }
    .container{
      width:min(1180px,calc(100% - 44px));
      margin:0 auto;
    }
    main{overflow:hidden}
    .section{
      padding:58px 0;
      position:relative;
    }
    .section.tight{padding:42px 0}
    .section-head{
      display:flex;
      align-items:flex-end;
      justify-content:space-between;
      gap:24px;
      margin-bottom:24px;
    }
    .section-kicker{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:7px 12px;
      border-radius:999px;
      color:#caf6ff;
      background:rgba(65,216,255,.10);
      border:1px solid rgba(65,216,255,.2);
      font-size:13px;
      font-weight:800;
      margin-bottom:12px;
    }
    .section-title{
      margin:0;
      font-size:clamp(26px,3vw,42px);
      line-height:1.18;
      letter-spacing:-.03em;
    }
    .section-desc{
      max-width:680px;
      margin:10px 0 0;
      color:var(--muted);
      font-size:16px;
    }
    .section-action{
      flex:0 0 auto;
      color:#bdeeff;
      font-weight:800;
      display:inline-flex;
      align-items:center;
      gap:9px;
    }
    .section-action:hover{gap:12px}

    .hero{
      min-height:720px;
      padding:44px 0 62px;
      display:flex;
      align-items:center;
    }
    .hero-stage{
      position:relative;
      border:1px solid rgba(165,209,255,.18);
      border-radius:36px;
      padding:34px;
      overflow:hidden;
      background:
        linear-gradient(145deg,rgba(18,46,78,.76),rgba(6,17,31,.9) 58%),
        radial-gradient(circle at 78% 18%,rgba(65,216,255,.22),transparent 32%);
      box-shadow:var(--shadow);
    }
    .hero-stage::before{
      content:"";
      position:absolute;
      inset:-1px;
      background:
        radial-gradient(circle at 16% 15%,rgba(125,242,181,.18),transparent 28%),
        radial-gradient(circle at 92% 22%,rgba(108,124,255,.26),transparent 28%),
        linear-gradient(90deg,transparent,rgba(255,255,255,.055),transparent);
      pointer-events:none;
    }
    .hero-content{
      position:relative;
      z-index:1;
      display:grid;
      grid-template-columns:1.05fr .95fr;
      gap:26px;
      align-items:stretch;
    }
    .hero-copy{
      padding:18px 6px 8px 8px;
    }
    .eyebrow{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin-bottom:20px;
    }
    .badge{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:8px 12px;
      border-radius:999px;
      border:1px solid rgba(255,255,255,.14);
      color:#dff7ff;
      background:rgba(255,255,255,.075);
      backdrop-filter:blur(12px);
      font-size:13px;
      font-weight:800;
    }
    h1{
      margin:0;
      max-width:840px;
      font-size:clamp(38px,5.4vw,72px);
      line-height:1.05;
      letter-spacing:-.06em;
    }
    .gradient-text{
      background:linear-gradient(90deg,#fff 0%,#bdf5ff 44%,#7df2b5 100%);
      -webkit-background-clip:text;
      background-clip:text;
      color:transparent;
    }
    .hero-lead{
      margin:22px 0 0;
      max-width:760px;
      color:#c4d7e9;
      font-size:18px;
      line-height:1.9;
    }
    .sell-list{
      display:grid;
      grid-template-columns:repeat(2,minmax(0,1fr));
      gap:12px;
      margin:24px 0 0;
      padding:0;
      list-style:none;
    }
    .sell-list li{
      display:flex;
      gap:10px;
      align-items:flex-start;
      padding:12px 13px;
      border-radius:16px;
      background:rgba(255,255,255,.06);
      border:1px solid rgba(255,255,255,.10);
      color:#d6e9f8;
      font-size:14px;
    }
    .sell-list i{
      color:var(--accent);
      margin-top:5px;
    }
    .hero-actions{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      margin-top:28px;
    }
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:10px;
      min-height:50px;
      padding:0 20px;
      border-radius:16px;
      font-weight:900;
      letter-spacing:.01em;
      border:1px solid transparent;
      transition:var(--ease);
      user-select:none;
    }
    .btn-primary{
      color:#03111f;
      background:linear-gradient(135deg,var(--primary),var(--accent));
      box-shadow:0 0 28px rgba(65,216,255,.34),0 14px 28px rgba(0,0,0,.20);
    }
    .btn-primary:hover{
      color:#03111f;
      transform:translateY(-2px);
      box-shadow:0 0 38px rgba(65,216,255,.48),0 18px 34px rgba(0,0,0,.26);
    }
    .btn-secondary{
      color:#eaf7ff;
      background:rgba(255,255,255,.08);
      border-color:rgba(255,255,255,.16);
    }
    .btn-secondary:hover{
      color:#fff;
      background:rgba(65,216,255,.13);
      border-color:rgba(65,216,255,.32);
      transform:translateY(-2px);
    }
    .btn-ghost{
      color:#cceaff;
      background:transparent;
      border-color:rgba(255,255,255,.16);
    }
    .btn-ghost:hover{
      background:rgba(255,255,255,.08);
      color:#fff;
    }

    .hero-bento{
      display:grid;
      grid-template-columns:1fr 1fr;
      grid-template-rows:auto auto auto;
      gap:14px;
    }
    .glass-card{
      position:relative;
      border:1px solid rgba(165,209,255,.16);
      border-radius:var(--radius-lg);
      background:linear-gradient(180deg,rgba(255,255,255,.10),rgba(255,255,255,.045));
      box-shadow:var(--shadow-soft);
      backdrop-filter:blur(18px);
      overflow:hidden;
      transition:var(--ease);
    }
    .glass-card:hover{
      transform:translateY(-4px);
      border-color:rgba(65,216,255,.32);
      box-shadow:0 22px 56px rgba(0,0,0,.30);
    }
    .hero-metric{
      padding:20px;
      min-height:148px;
    }
    .hero-metric.large{
      grid-column:span 2;
      min-height:188px;
      display:flex;
      align-items:flex-end;
      justify-content:space-between;
      gap:18px;
      background:
        linear-gradient(135deg,rgba(65,216,255,.18),rgba(108,124,255,.10)),
        rgba(255,255,255,.06);
    }
    .metric-label{
      color:var(--muted);
      font-size:13px;
      font-weight:800;
    }
    .metric-value{
      margin:8px 0 4px;
      font-size:clamp(30px,4vw,52px);
      line-height:1;
      letter-spacing:-.04em;
      font-weight:900;
    }
    .metric-text{
      margin:0;
      color:#c7d8e8;
      font-size:14px;
    }
    .signal-ring{
      width:118px;
      height:118px;
      border-radius:50%;
      flex:0 0 118px;
      display:grid;
      place-items:center;
      background:
        radial-gradient(circle,rgba(125,242,181,.22) 0 32%,transparent 33%),
        conic-gradient(from 20deg,var(--primary),var(--primary-2),var(--accent),var(--primary));
      box-shadow:0 0 42px rgba(65,216,255,.25);
      padding:8px;
    }
    .signal-ring span{
      width:100%;
      height:100%;
      border-radius:50%;
      display:grid;
      place-items:center;
      background:#071525;
      font-weight:900;
      color:#eafaff;
      text-align:center;
      line-height:1.2;
      font-size:14px;
    }
    .trust-strip{
      position:relative;
      z-index:1;
      margin-top:22px;
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      align-items:center;
      padding:12px;
      border-radius:18px;
      border:1px solid rgba(255,255,255,.12);
      background:rgba(3,13,24,.34);
    }
    .trust-item{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:8px 10px;
      color:#cfe6f8;
      font-size:13px;
    }
    .trust-item i{color:var(--accent)}

    .dashboard-grid{
      display:grid;
      grid-template-columns:repeat(4,minmax(0,1fr));
      gap:14px;
    }
    .dash-card{
      padding:22px;
      min-height:150px;
    }
    .dash-card .num{
      font-size:36px;
      line-height:1;
      font-weight:900;
      letter-spacing:-.04em;
      margin-bottom:12px;
    }
    .dash-card .num small{font-size:18px;color:var(--muted)}
    .dash-card p{margin:0;color:var(--muted);font-size:14px}
    .progress{
      height:8px;
      margin-top:18px;
      border-radius:999px;
      background:rgba(255,255,255,.08);
      overflow:hidden;
    }
    .progress span{
      display:block;
      height:100%;
      border-radius:999px;
      background:linear-gradient(90deg,var(--primary),var(--accent));
      box-shadow:0 0 16px rgba(65,216,255,.45);
    }

    .catalog-layout{
      display:grid;
      grid-template-columns:.85fr 1.15fr;
      gap:18px;
      align-items:stretch;
    }
    .catalog-feature{
      padding:28px;
      min-height:100%;
      background:
        linear-gradient(160deg,rgba(65,216,255,.14),rgba(255,255,255,.05)),
        rgba(255,255,255,.04);
    }
    .catalog-feature h3,.card h3,.compare-card h3,.faq-item h3{
      margin:0 0 10px;
      font-size:20px;
      line-height:1.35;
    }
    .catalog-feature p,.card p,.compare-card p{
      margin:0;
      color:var(--muted);
      font-size:15px;
    }
    .catalog-pills{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin-top:22px;
    }
    .pill{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:9px 12px;
      border-radius:999px;
      color:#dff5ff;
      background:rgba(255,255,255,.07);
      border:1px solid rgba(255,255,255,.11);
      font-size:13px;
      font-weight:800;
    }
    .catalog-grid{
      display:grid;
      grid-template-columns:repeat(2,minmax(0,1fr));
      gap:14px;
    }
    .catalog-item{
      padding:22px;
      min-height:168px;
    }
    .icon-box{
      width:42px;
      height:42px;
      border-radius:14px;
      display:grid;
      place-items:center;
      margin-bottom:16px;
      color:#04101d;
      background:linear-gradient(135deg,var(--primary),var(--accent));
      box-shadow:0 0 24px rgba(65,216,255,.24);
    }

    .recommend-row{
      display:grid;
      grid-template-columns:1.1fr .9fr;
      gap:18px;
    }
    .recommend-stack{
      display:grid;
      gap:14px;
    }
    .wide-card{
      padding:24px;
      display:grid;
      grid-template-columns:auto 1fr auto;
      gap:18px;
      align-items:center;
    }
    .rank{
      width:48px;
      height:48px;
      border-radius:16px;
      display:grid;
      place-items:center;
      font-weight:900;
      color:#06111f;
      background:linear-gradient(135deg,var(--gold),var(--accent));
    }
    .wide-card h3{margin:0 0 6px;font-size:19px}
    .wide-card p{margin:0;color:var(--muted);font-size:14px}
    .tag-list{
      display:flex;
      flex-wrap:wrap;
      gap:8px;
      margin-top:12px;
    }
    .tag{
      padding:6px 9px;
      border-radius:10px;
      background:rgba(65,216,255,.09);
      border:1px solid rgba(65,216,255,.15);
      color:#cfefff;
      font-size:12px;
      font-weight:800;
    }
    .side-highlight{
      padding:26px;
      min-height:100%;
      display:flex;
      flex-direction:column;
      justify-content:space-between;
      background:
        radial-gradient(circle at 80% 12%,rgba(125,242,181,.20),transparent 32%),
        linear-gradient(160deg,rgba(108,124,255,.18),rgba(255,255,255,.05));
    }
    .device-orbit{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:10px;
      margin-top:24px;
    }
    .device-chip{
      min-height:86px;
      border-radius:18px;
      padding:12px;
      background:rgba(3,13,24,.34);
      border:1px solid rgba(255,255,255,.10);
      display:flex;
      flex-direction:column;
      justify-content:flex-end;
    }
    .device-chip strong{font-size:13px}
    .device-chip span{font-size:12px;color:var(--muted)}

    .steps{
      display:grid;
      grid-template-columns:repeat(4,minmax(0,1fr));
      gap:14px;
      counter-reset:step;
    }
    .step-card{
      padding:22px;
      min-height:214px;
      counter-increment:step;
    }
    .step-card::before{
      content:"0" counter(step);
      display:inline-flex;
      margin-bottom:18px;
      width:44px;
      height:44px;
      border-radius:15px;
      align-items:center;
      justify-content:center;
      background:rgba(65,216,255,.12);
      border:1px solid rgba(65,216,255,.22);
      color:var(--primary);
      font-weight:900;
    }

    .security-band{
      display:grid;
      grid-template-columns:1fr 1fr 1fr;
      gap:14px;
    }
    .security-card{
      padding:24px;
      min-height:210px;
    }
    .security-card i{
      font-size:26px;
      color:var(--accent);
      margin-bottom:16px;
      filter:drop-shadow(0 0 16px rgba(125,242,181,.28));
    }

    .compare-wrap{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:18px;
    }
    .compare-card{
      padding:26px;
    }
    .compare-card.featured{
      border-color:rgba(65,216,255,.34);
      background:
        linear-gradient(150deg,rgba(65,216,255,.16),rgba(125,242,181,.07)),
        rgba(255,255,255,.05);
    }
    .compare-list{
      margin:18px 0 0;
      padding:0;
      list-style:none;
      display:grid;
      gap:12px;
    }
    .compare-list li{
      display:flex;
      gap:10px;
      align-items:flex-start;
      color:#d7e8f6;
      font-size:14px;
    }
    .compare-list i{
      margin-top:5px;
      color:var(--accent);
    }
    .compare-card.muted .compare-list i{color:var(--danger)}

    .faq-grid{
      display:grid;
      grid-template-columns:.85fr 1.15fr;
      gap:18px;
      align-items:start;
    }
    .faq-aside{
      padding:26px;
      position:sticky;
      top:24px;
    }
    .faq-list{
      display:grid;
      gap:12px;
    }
    .faq-item{
      padding:20px 22px;
    }
    .faq-item h3{
      display:flex;
      align-items:flex-start;
      gap:10px;
      font-size:17px;
    }
    .faq-item h3 i{
      color:var(--primary);
      margin-top:4px;
    }
    .faq-item p{
      margin:0;
      color:var(--muted);
      font-size:15px;
    }

    .news-layout{
      display:grid;
      grid-template-columns:1.2fr .8fr;
      gap:18px;
    }
    .news-list{
      padding:10px;
    }
    .news-link{
      display:grid;
      grid-template-columns:120px 1fr auto;
      gap:16px;
      align-items:center;
      padding:16px;
      border-radius:18px;
      border:1px solid transparent;
      color:#e8f6ff;
    }
    .news-link:hover{
      background:rgba(255,255,255,.06);
      border-color:rgba(65,216,255,.18);
      transform:translateX(2px);
    }
    .news-date{
      color:var(--muted-2);
      font-size:13px;
      font-weight:800;
    }
    .news-title{
      font-weight:900;
      line-height:1.45;
    }
    .news-meta{
      color:var(--muted);
      font-size:13px;
    }
    .recommend-box{
      padding:24px;
      background:
        linear-gradient(160deg,rgba(255,209,102,.10),rgba(65,216,255,.06)),
        rgba(255,255,255,.04);
    }
    .mini-list{
      list-style:none;
      padding:0;
      margin:18px 0 0;
      display:grid;
      gap:12px;
    }
    .mini-list a{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      padding:13px 14px;
      border-radius:15px;
      background:rgba(255,255,255,.055);
      border:1px solid rgba(255,255,255,.08);
      color:#dceeff;
      font-weight:800;
      font-size:14px;
    }
    .mini-list a:hover{
      background:rgba(65,216,255,.10);
      border-color:rgba(65,216,255,.20);
    }

    .share-section{
      padding-bottom:74px;
    }
    .share-card{
      display:grid;
      grid-template-columns:1fr .86fr;
      gap:22px;
      align-items:center;
      padding:30px;
      border-radius:32px;
      border:1px solid rgba(65,216,255,.24);
      background:
        radial-gradient(circle at 16% 28%,rgba(65,216,255,.20),transparent 30%),
        radial-gradient(circle at 82% 26%,rgba(125,242,181,.16),transparent 28%),
        linear-gradient(145deg,rgba(18,46,78,.82),rgba(5,15,28,.94));
      box-shadow:var(--shadow);
    }
    .share-actions{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      margin-top:22px;
    }
    .lead-form{
      padding:22px;
      border-radius:24px;
      background:rgba(255,255,255,.06);
      border:1px solid rgba(255,255,255,.12);
    }
    .form-row{
      display:grid;
      grid-template-columns:1fr auto;
      gap:10px;
      margin-top:14px;
    }
    .email-input{
      height:52px;
      margin:0;
      color:#fff;
      border-radius:16px;
      border:1px solid rgba(255,255,255,.14);
      background:rgba(3,13,24,.42);
      box-shadow:none;
      padding:0 15px;
    }
    .email-input::placeholder{color:#7f95aa}
    .email-input:focus{
      border-color:rgba(65,216,255,.52);
      background:rgba(3,13,24,.55);
      box-shadow:0 0 0 4px rgba(65,216,255,.10);
    }
    .form-tip{
      margin:12px 0 0;
      color:var(--muted);
      font-size:13px;
    }

    .footer{
      margin-left:var(--side);
      border-top:1px solid var(--line);
      background:rgba(3,11,20,.62);
    }
    .footer-inner{
      padding:34px 0;
      display:grid;
      grid-template-columns:1.1fr .9fr;
      gap:24px;
      align-items:start;
    }
    .footer-brand{
      display:flex;
      align-items:center;
      gap:12px;
      margin-bottom:12px;
      font-weight:900;
      font-size:18px;
    }
    .footer p{
      margin:0;
      color:var(--muted);
      max-width:650px;
      font-size:14px;
    }
    .footer-links{
      display:flex;
      flex-wrap:wrap;
      justify-content:flex-end;
      gap:10px;
    }
    .footer-link{
      padding:9px 12px;
      border-radius:12px;
      color:#d5e9f8;
      background:rgba(255,255,255,.05);
      border:1px solid rgba(255,255,255,.08);
      font-size:13px;
      font-weight:800;
    }
    .footer-link:hover{
      background:rgba(65,216,255,.10);
      border-color:rgba(65,216,255,.22);
    }
    .copyright{
      border-top:1px solid rgba(255,255,255,.08);
      padding:18px 0 28px;
      color:var(--muted-2);
      font-size:13px;
      display:flex;
      justify-content:space-between;
      gap:14px;
      flex-wrap:wrap;
    }

    @media (max-width:1200px){
      :root{--side:248px}
      .hero-content{grid-template-columns:1fr}
      .hero-bento{grid-template-columns:repeat(3,1fr)}
      .hero-metric.large{grid-column:span 3}
      .dashboard-grid{grid-template-columns:repeat(2,1fr)}
      .steps{grid-template-columns:repeat(2,1fr)}
    }

    @media (max-width:1024px){
      .sidebar{
        transform:translateX(-105%);
        transition:var(--ease);
        width:286px;
      }
      .sidebar.open{transform:translateX(0)}
      .mobile-topbar{display:flex}
      .main-wrap,.footer{margin-left:0}
      .container{width:min(100% - 32px,980px)}
      .hero{min-height:auto;padding-top:28px}
      .catalog-layout,.recommend-row,.faq-grid,.news-layout,.share-card{
        grid-template-columns:1fr;
      }
      .faq-aside{position:relative;top:auto}
      .security-band{grid-template-columns:1fr}
      .compare-wrap{grid-template-columns:1fr}
      .footer-inner{grid-template-columns:1fr}
      .footer-links{justify-content:flex-start}
    }

    @media (max-width:768px){
      .section{padding:44px 0}
      .section-head{
        align-items:flex-start;
        flex-direction:column;
        gap:10px;
      }
      .hero-stage{padding:22px;border-radius:26px}
      .sell-list,.catalog-grid,.dashboard-grid,.steps{
        grid-template-columns:1fr;
      }
      .hero-bento{grid-template-columns:1fr}
      .hero-metric.large{
        grid-column:auto;
        flex-direction:column;
        align-items:flex-start;
      }
      .signal-ring{
        width:96px;
        height:96px;
        flex-basis:96px;
      }
      .wide-card{
        grid-template-columns:1fr;
        align-items:start;
      }
      .device-orbit{grid-template-columns:1fr}
      .news-link{
        grid-template-columns:1fr;
        gap:6px;
      }
      .form-row{grid-template-columns:1fr}
      .btn{width:100%}
      .share-actions .btn{width:100%}
    }

    @media (max-width:520px){
      .container{width:min(100% - 24px,100%)}
      .mobile-topbar{padding:10px 12px}
      .mobile-brand span{font-size:15px}
      h1{font-size:34px}
      .hero-lead{font-size:16px}
      .section-title{font-size:26px}
      .hero-actions{gap:10px}
      .trust-strip{display:grid}
      .share-card{padding:22px;border-radius:24px}
      .footer-inner{padding-top:28px}
      .copyright{flex-direction:column}
    }