/* roulang page: index */
:root{
      --bg:#050713;
      --bg-2:#070b18;
      --panel:rgba(15,23,42,.62);
      --panel-strong:rgba(8,13,28,.82);
      --text:#f8fafc;
      --muted:#cbd5e1;
      --weak:#94a3b8;
      --line:rgba(148,163,184,.18);
      --line-hover:rgba(56,189,248,.46);
      --blue:#38bdf8;
      --blue-2:#3b82f6;
      --purple:#8b5cf6;
      --pink:#e879f9;
      --cyan:#22d3ee;
      --green:#34d399;
      --radius-sm:12px;
      --radius:20px;
      --radius-lg:30px;
      --pill:999px;
      --shadow:0 22px 70px rgba(0,0,0,.38);
      --glow:0 0 34px rgba(56,189,248,.16);
      --container:1220px;
      --ease:180ms ease;
    }

    *{box-sizing:border-box;margin:0;padding:0}
    html{scroll-behavior:smooth}
    body{
      min-height:100vh;
      font-family:system-ui,-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
      color:var(--text);
      background:
        radial-gradient(circle at 12% 8%, rgba(56,189,248,.20), transparent 30%),
        radial-gradient(circle at 86% 12%, rgba(139,92,246,.22), transparent 32%),
        radial-gradient(circle at 70% 76%, rgba(217,70,239,.11), transparent 28%),
        linear-gradient(180deg,#050713 0%,#070b18 42%,#050713 100%);
      line-height:1.75;
      overflow-x:hidden;
    }
    body:before{
      content:"";
      position:fixed;
      inset:0;
      pointer-events:none;
      background-image:
        linear-gradient(rgba(148,163,184,.045) 1px, transparent 1px),
        linear-gradient(90deg, rgba(148,163,184,.045) 1px, transparent 1px);
      background-size:46px 46px;
      mask-image:linear-gradient(to bottom,rgba(0,0,0,.72),transparent 78%);
      z-index:-2;
    }
    body:after{
      content:"";
      position:fixed;
      inset:0;
      pointer-events:none;
      opacity:.18;
      background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140' viewBox='0 0 140 140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.8' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(/%23n)' opacity='.35'/%3E%3C/svg%3E");
      z-index:-1;
    }

    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input,select,textarea{font:inherit}
    button{cursor:pointer;border:0}
    ::selection{background:rgba(56,189,248,.34);color:#fff}

    .container{width:min(var(--container), calc(100% - 48px));margin-inline:auto}
    .section{padding:96px 0}
    .section-tight{padding:64px 0}
    .eyebrow{
      display:inline-flex;align-items:center;gap:8px;
      padding:7px 12px;border-radius:var(--pill);
      border:1px solid rgba(56,189,248,.26);
      color:#dff7ff;background:rgba(56,189,248,.08);
      font-size:13px;font-weight:700;letter-spacing:.02em;
      box-shadow:inset 0 0 20px rgba(56,189,248,.05);
    }
    .dot{width:7px;height:7px;border-radius:50%;background:var(--cyan);box-shadow:0 0 14px var(--cyan)}
    .section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:30px}
    .section-title{max-width:760px}
    h1,h2,h3{letter-spacing:-.03em;line-height:1.14}
    h1{font-size:clamp(36px,5vw,62px);font-weight:850;margin:18px 0 18px}
    h2{font-size:clamp(28px,3.4vw,40px);font-weight:820;margin-bottom:12px}
    h3{font-size:21px;font-weight:780}
    p{color:var(--muted)}
    .lead{font-size:17px;max-width:680px;color:#d5e3f4}
    .muted{color:var(--weak)}
    .gradient-text{
      background:linear-gradient(100deg,#fff 10%,#c7f3ff 42%,#decaff 78%,#fff);
      -webkit-background-clip:text;background-clip:text;color:transparent;
    }

    .agebar{
      position:relative;z-index:60;
      background:linear-gradient(90deg,rgba(8,13,28,.92),rgba(15,23,42,.78));
      border-bottom:1px solid var(--line);
      color:#dbeafe;
      font-size:13px;
    }
    .agebar-inner{
      min-height:42px;display:flex;align-items:center;justify-content:space-between;gap:14px;
    }
    .agebar strong{color:#fff}
    .age-actions{display:flex;gap:8px;flex-shrink:0}
    .mini-btn{
      border:1px solid rgba(148,163,184,.26);
      background:rgba(255,255,255,.04);
      color:#eef6ff;
      padding:5px 10px;border-radius:var(--pill);
      transition:var(--ease);
      font-size:12px;
    }
    .mini-btn:hover,.mini-btn:focus-visible{border-color:var(--line-hover);box-shadow:var(--glow);outline:none}
    .mini-btn.primary{background:linear-gradient(135deg,rgba(56,189,248,.26),rgba(139,92,246,.24));border-color:rgba(56,189,248,.35)}

    .site-header{
      position:sticky;top:0;z-index:50;
      background:rgba(5,7,19,.74);
      backdrop-filter:blur(18px) saturate(140%);
      border-bottom:1px solid var(--line);
    }
    .nav{
      min-height:78px;display:flex;align-items:center;justify-content:space-between;gap:18px;
    }
    .brand{
      display:flex;align-items:center;gap:11px;min-width:236px;
      font-weight:850;letter-spacing:-.03em;
    }
    .brand-mark{
      width:38px;height:38px;border-radius:14px;
      background:
        radial-gradient(circle at 30% 25%, #fff, transparent 18%),
        linear-gradient(135deg,var(--blue),var(--purple) 62%,var(--pink));
      box-shadow:0 0 30px rgba(56,189,248,.25);
      position:relative;flex:0 0 auto;
    }
    .brand-mark:after{
      content:"";position:absolute;inset:9px;border-radius:10px;
      border:1px solid rgba(255,255,255,.55);
    }
    .brand-text{font-size:15px;white-space:nowrap;max-width:270px;overflow:hidden;text-overflow:ellipsis}
    .nav-links{
      display:flex;align-items:center;gap:6px;
      padding:6px;border:1px solid rgba(148,163,184,.14);
      border-radius:var(--pill);background:rgba(15,23,42,.38);
    }
    .nav-links a{
      padding:9px 14px;border-radius:var(--pill);
      color:var(--muted);font-size:14px;font-weight:680;
      transition:var(--ease);
    }
    .nav-links a:hover,.nav-links a:focus-visible{
      color:#fff;background:rgba(56,189,248,.10);outline:none;
    }
    .nav-links a.active{
      color:#fff;background:linear-gradient(135deg,rgba(56,189,248,.19),rgba(139,92,246,.18));
      box-shadow:inset 0 0 0 1px rgba(56,189,248,.16);
    }
    .nav-actions{display:flex;align-items:center;gap:10px}
    .command-search{
      height:42px;width:220px;display:flex;align-items:center;gap:9px;
      padding:0 12px;border-radius:var(--pill);
      border:1px solid rgba(148,163,184,.18);
      background:rgba(8,13,28,.64);color:var(--weak);
      transition:var(--ease);
    }
    .command-search:focus-within{border-color:var(--line-hover);box-shadow:0 0 0 3px rgba(56,189,248,.10)}
    .command-search input{width:100%;border:0;outline:0;background:transparent;color:#fff;font-size:14px}
    .command-search kbd{
      font-size:11px;color:#cbd5e1;padding:1px 6px;border-radius:7px;
      border:1px solid rgba(148,163,184,.22);background:rgba(255,255,255,.05)
    }

    .btn{
      display:inline-flex;align-items:center;justify-content:center;gap:8px;
      min-height:44px;padding:11px 18px;border-radius:var(--pill);
      color:#fff;font-weight:760;font-size:14px;
      transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease),filter var(--ease),background var(--ease);
      user-select:none;
    }
    .btn-primary{
      background:linear-gradient(135deg,var(--blue),var(--purple));
      box-shadow:0 12px 34px rgba(56,189,248,.24),0 0 24px rgba(139,92,246,.18);
    }
    .btn-secondary{
      border:1px solid rgba(148,163,184,.24);
      background:rgba(15,23,42,.56);
      color:#eff6ff;
    }
    .btn:hover,.btn:focus-visible{transform:translateY(-2px);outline:none}
    .btn-primary:hover,.btn-primary:focus-visible{filter:brightness(1.08);box-shadow:0 16px 44px rgba(56,189,248,.30),0 0 34px rgba(139,92,246,.22)}
    .btn-secondary:hover,.btn-secondary:focus-visible{border-color:var(--line-hover);box-shadow:var(--glow)}
    .btn:active{transform:translateY(0);filter:brightness(.96)}
    .btn.full{width:100%}
    .menu-toggle{display:none;width:44px;height:44px;border-radius:14px;background:rgba(15,23,42,.64);border:1px solid var(--line);color:#fff}

    .hero{padding:74px 0 48px;position:relative}
    .hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:42px;align-items:center}
    .hero-copy{position:relative;z-index:2}
    .hero-cta{display:flex;gap:12px;flex-wrap:wrap;margin-top:30px}
    .trust-row{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:28px;max-width:660px}
    .trust-item{
      border:1px solid var(--line);background:rgba(15,23,42,.44);
      border-radius:16px;padding:13px 14px;color:#dbeafe;font-size:13px;
    }
    .trust-item b{display:block;color:#fff;font-size:14px;margin-bottom:2px}

    .hero-showcase{
      position:relative;min-height:560px;
      border-radius:var(--radius-lg);
      border:1px solid rgba(148,163,184,.18);
      background:
        radial-gradient(circle at 70% 10%, rgba(232,121,249,.20), transparent 26%),
        radial-gradient(circle at 25% 78%, rgba(34,211,238,.17), transparent 32%),
        rgba(8,13,28,.64);
      box-shadow:var(--shadow);
      overflow:hidden;
      padding:26px;
      backdrop-filter:blur(18px) saturate(135%);
    }
    .hero-showcase:before{
      content:"";position:absolute;inset:0;
      background:linear-gradient(135deg,rgba(255,255,255,.09),transparent 28%,rgba(56,189,248,.07) 68%,transparent);
      pointer-events:none;
    }
    .product-card{
      position:relative;z-index:2;
      border:1px solid rgba(148,163,184,.22);
      background:rgba(15,23,42,.72);
      border-radius:26px;padding:22px;
      box-shadow:0 22px 60px rgba(0,0,0,.34);
    }
    .abstract-cover{
      height:246px;border-radius:22px;overflow:hidden;position:relative;margin-bottom:18px;
      border:1px solid rgba(255,255,255,.12);
      background:
        radial-gradient(circle at 25% 20%, rgba(255,255,255,.22), transparent 12%),
        radial-gradient(circle at 72% 28%, rgba(232,121,249,.40), transparent 20%),
        radial-gradient(circle at 38% 78%, rgba(56,189,248,.36), transparent 24%),
        linear-gradient(135deg,#0f172a,#1e1b4b 55%,#111827);
    }
    .abstract-cover:after{
      content:"会员精选";position:absolute;left:20px;bottom:18px;
      color:#fff;font-weight:850;font-size:28px;letter-spacing:-.04em;
    }
    .abstract-cover span{
      position:absolute;right:18px;top:18px;padding:7px 10px;border-radius:var(--pill);
      background:rgba(5,7,19,.52);border:1px solid rgba(255,255,255,.16);font-size:12px;color:#e0f2fe;
    }
    .product-top{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:12px}
    .rating{color:#fde68a;font-size:14px;white-space:nowrap}
    .price-line{display:flex;align-items:baseline;gap:8px;margin:14px 0 18px}
    .price-line strong{font-size:30px;letter-spacing:-.04em}
    .price-line span{color:var(--weak);font-size:13px}
    .feature-list{display:grid;gap:10px;margin:16px 0 18px}
    .feature-list li{list-style:none;display:flex;align-items:flex-start;gap:9px;color:#dbeafe;font-size:14px}
    .feature-list li:before{content:"";width:8px;height:8px;border-radius:50%;margin-top:9px;background:var(--cyan);box-shadow:0 0 12px var(--cyan);flex:0 0 auto}
    .float-card{
      position:absolute;z-index:3;
      border:1px solid rgba(148,163,184,.20);
      background:rgba(8,13,28,.78);
      backdrop-filter:blur(16px);
      border-radius:18px;
      padding:14px 16px;
      box-shadow:0 16px 48px rgba(0,0,0,.30);
    }
    .float-card.one{right:18px;top:88px;width:172px}
    .float-card.two{left:18px;bottom:74px;width:184px}
    .float-card small{color:var(--weak);display:block}
    .float-card b{font-size:20px;color:#fff}

    .band{
      display:grid;grid-template-columns:repeat(4,1fr);gap:1px;
      border:1px solid var(--line);border-radius:24px;overflow:hidden;
      background:rgba(148,163,184,.08);
    }
    .band-item{padding:22px;background:rgba(8,13,28,.62)}
    .band-icon{width:40px;height:40px;border-radius:14px;display:grid;place-items:center;margin-bottom:10px;background:rgba(34,211,238,.10);color:#bff7ff;border:1px solid rgba(34,211,238,.20)}
    .band-item b{display:block;margin-bottom:4px}
    .band-item span{color:var(--weak);font-size:13px}

    .bento{
      display:grid;grid-template-columns:1.2fr .8fr .8fr;grid-auto-rows:minmax(210px,auto);gap:16px;
    }
    .card{
      position:relative;overflow:hidden;
      border:1px solid var(--line);
      background:var(--panel);
      border-radius:var(--radius);
      box-shadow:0 16px 46px rgba(0,0,0,.22);
      transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease),background var(--ease);
      backdrop-filter:blur(16px) saturate(130%);
    }
    .card:hover{transform:translateY(-4px);border-color:var(--line-hover);box-shadow:var(--shadow),var(--glow)}
    .card.pad{padding:24px}
    .bento-main{grid-row:span 2;padding:28px}
    .tag{
      display:inline-flex;align-items:center;gap:7px;
      padding:6px 10px;border-radius:var(--pill);
      background:rgba(139,92,246,.12);
      border:1px solid rgba(139,92,246,.24);
      color:#ede9fe;font-size:12px;font-weight:760;
    }
    .tag.hot{background:rgba(232,121,249,.12);border-color:rgba(232,121,249,.24);color:#fce7f3}
    .metric-row{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}
    .metric{
      padding:10px 12px;border-radius:14px;background:rgba(255,255,255,.045);border:1px solid rgba(148,163,184,.14);
      min-width:96px;
    }
    .metric b{display:block;font-size:20px;line-height:1.15}
    .metric span{color:var(--weak);font-size:12px}
    .mini-cover{
      height:116px;border-radius:16px;margin:16px 0;border:1px solid rgba(255,255,255,.11);
      background:
        radial-gradient(circle at 70% 30%, rgba(56,189,248,.36), transparent 24%),
        radial-gradient(circle at 30% 72%, rgba(139,92,246,.36), transparent 27%),
        linear-gradient(135deg,#111827,#1e1b4b);
      position:relative;overflow:hidden;
    }
    .mini-cover:after{content:attr(data-no);position:absolute;right:16px;bottom:9px;color:rgba(255,255,255,.42);font-size:38px;font-weight:900}

    .reviews-wrap{position:relative}
    .reviews{
      display:grid;grid-template-columns:repeat(3,1fr);gap:16px;
    }
    .review{padding:22px}
    .review-head{display:flex;align-items:center;gap:12px;margin-bottom:14px}
    .avatar{
      width:44px;height:44px;border-radius:50%;
      display:grid;place-items:center;font-weight:850;
      background:linear-gradient(135deg,var(--blue),var(--purple));
      box-shadow:0 0 24px rgba(56,189,248,.18);
    }
    .stars{color:#fde68a;font-size:13px;margin-top:2px}
    .review p{font-size:14px}
    .review-controls{display:flex;gap:8px;justify-content:center;margin-top:18px}
    .dot-btn{width:9px;height:9px;border-radius:50%;background:rgba(148,163,184,.32);border:1px solid rgba(255,255,255,.08)}
    .dot-btn.active{background:var(--blue);box-shadow:0 0 16px rgba(56,189,248,.6)}

    .category-panel{
      display:grid;grid-template-columns:1fr .9fr;gap:18px;align-items:stretch;
    }
    .category-card{padding:28px}
    .category-card .icon{
      width:52px;height:52px;border-radius:18px;display:grid;place-items:center;margin-bottom:18px;
      background:linear-gradient(135deg,rgba(56,189,248,.18),rgba(139,92,246,.18));
      border:1px solid rgba(56,189,248,.22);font-size:24px;
    }
    .tag-cloud{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
    .cloud-item{padding:9px 12px;border-radius:var(--pill);border:1px solid var(--line);background:rgba(255,255,255,.04);color:#dbeafe;font-size:13px}

    .steps{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
    .step{padding:22px}
    .step-no{width:34px;height:34px;border-radius:12px;background:rgba(56,189,248,.12);border:1px solid rgba(56,189,248,.20);display:grid;place-items:center;color:#dff7ff;font-weight:850;margin-bottom:14px}

    .faq-list{display:grid;gap:12px;max-width:900px;margin:0 auto}
    .faq-item{
      border:1px solid var(--line);border-radius:18px;background:rgba(15,23,42,.54);overflow:hidden;
      transition:var(--ease);
    }
    .faq-item:hover{border-color:rgba(56,189,248,.30)}
    .faq-q{
      width:100%;display:flex;justify-content:space-between;align-items:center;gap:18px;
      padding:18px 20px;background:transparent;color:#fff;text-align:left;font-weight:760;
    }
    .faq-q span:last-child{color:var(--blue);font-size:20px;line-height:1}
    .faq-a{display:none;padding:0 20px 18px;color:var(--muted);font-size:14px}
    .faq-item.open .faq-a{display:block}
    .faq-item.open .faq-q span:last-child{transform:rotate(45deg)}

    .cta{
      position:relative;overflow:hidden;
      border:1px solid rgba(56,189,248,.22);
      background:
        radial-gradient(circle at 20% 10%,rgba(56,189,248,.18),transparent 28%),
        radial-gradient(circle at 80% 80%,rgba(139,92,246,.18),transparent 30%),
        rgba(8,13,28,.76);
      border-radius:30px;padding:34px;
      box-shadow:var(--shadow);
    }
    .cta-grid{display:grid;grid-template-columns:1fr .86fr;gap:28px;align-items:start}
    .check-list{display:grid;gap:10px;margin-top:18px}
    .check-list li{list-style:none;color:#dbeafe;display:flex;gap:10px;align-items:flex-start}
    .check-list li:before{content:"✓";color:#a7f3d0;font-weight:900}
    .form-card{
      border:1px solid rgba(148,163,184,.20);
      background:rgba(15,23,42,.64);
      border-radius:24px;padding:22px;
    }
    .field{display:grid;gap:7px;margin-bottom:13px}
    .field label{font-size:13px;color:#dbeafe;font-weight:720}
    .field input,.field select,.field textarea{
      width:100%;border:1px solid rgba(148,163,184,.18);
      background:rgba(5,7,19,.58);color:#fff;border-radius:15px;
      padding:12px 13px;outline:none;transition:var(--ease);
    }
    .field textarea{min-height:86px;resize:vertical}
    .field input:focus,.field select:focus,.field textarea:focus{
      border-color:var(--line-hover);box-shadow:0 0 0 3px rgba(56,189,248,.10);
    }
    .privacy-note{font-size:12px;color:var(--weak);margin-top:10px}

    .footer{
      margin-top:86px;padding:54px 0 30px;
      background:rgba(3,6,15,.72);
      border-top:1px solid var(--line);
    }
    .footer-grid{display:grid;grid-template-columns:1.4fr .7fr .7fr 1fr;gap:28px}
    .footer h4{font-size:14px;margin-bottom:12px;color:#fff}
    .footer p,.footer a{font-size:13px;color:var(--weak)}
    .footer a{display:block;margin:8px 0;transition:var(--ease)}
    .footer a:hover,.footer a:focus-visible{color:#fff;outline:none}
    .footer .brand{min-width:0;margin-bottom:14px}
    .copyright{
      margin-top:34px;padding-top:20px;border-top:1px solid rgba(148,163,184,.14);
      display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;color:var(--weak);font-size:12px;
    }

    @media (max-width:1100px){
      .command-search{width:170px}
      .brand{min-width:190px}
      .brand-text{max-width:220px}
      .hero-grid{grid-template-columns:1fr;gap:28px}
      .hero-showcase{min-height:auto}
      .bento{grid-template-columns:1fr 1fr}
      .bento-main{grid-column:span 2;grid-row:auto}
      .footer-grid{grid-template-columns:1fr 1fr}
    }
    @media (max-width:860px){
      .container{width:min(100% - 36px,var(--container))}
      .section{padding:72px 0}
      .nav{min-height:68px}
      .menu-toggle{display:grid;place-items:center}
      .nav-links,.nav-actions{display:none}
      .site-header.open .nav-links,.site-header.open .nav-actions{
        display:flex;position:absolute;left:18px;right:18px;top:76px;
        flex-direction:column;align-items:stretch;border-radius:22px;padding:14px;
        background:rgba(8,13,28,.94);border:1px solid var(--line);box-shadow:var(--shadow);
      }
      .site-header.open .nav-actions{top:204px}
      .site-header.open .nav-links a{text-align:center}
      .site-header.open .command-search{width:100%}
      .hero{padding-top:48px}
      .trust-row,.band,.reviews,.steps,.category-panel,.cta-grid{grid-template-columns:1fr 1fr}
      .float-card{display:none}
      .section-head{display:block}
      .section-head .btn{margin-top:14px}
    }
    @media (max-width:620px){
      .container{width:min(100% - 32px,var(--container))}
      .agebar-inner{align-items:flex-start;flex-direction:column;padding:10px 0}
      .brand-text{max-width:210px}
      .hero-cta .btn{width:100%}
      .hero-showcase{padding:16px;border-radius:24px}
      .product-card{padding:16px;border-radius:22px}
      .abstract-cover{height:206px}
      .trust-row,.band,.reviews,.steps,.category-panel,.cta-grid,.bento,.footer-grid{grid-template-columns:1fr}
      .bento-main{grid-column:auto}
      .cta{padding:22px;border-radius:24px}
      .copyright{display:block}
      .copyright span{display:block;margin-top:6px}
    }
    @media (max-width:380px){
      .brand-text{max-width:170px}
      h1{font-size:33px}
      .abstract-cover:after{font-size:24px}
    }
    @media (prefers-reduced-motion:reduce){
      *{scroll-behavior:auto!important;transition:none!important;animation:none!important}
    }

/* roulang page: category1 */
:root {
      --bg: #050713;
      --bg-2: #070b18;
      --panel: rgba(15, 23, 42, .62);
      --panel-strong: rgba(8, 13, 28, .82);
      --text: #f8fafc;
      --muted: #cbd5e1;
      --weak: #94a3b8;
      --line: rgba(148, 163, 184, .18);
      --line-hover: rgba(56, 189, 248, .48);
      --blue: #38bdf8;
      --blue-2: #3b82f6;
      --purple: #8b5cf6;
      --pink: #e879f9;
      --cyan: #22d3ee;
      --success: #34d399;
      --warning: #fbbf24;
      --radius-sm: 12px;
      --radius: 20px;
      --radius-lg: 30px;
      --pill: 999px;
      --shadow: 0 24px 70px rgba(0, 0, 0, .42);
      --shadow-soft: 0 18px 46px rgba(0, 0, 0, .28);
      --glow: 0 0 42px rgba(56, 189, 248, .18);
      --container: 1220px;
      --nav-h: 78px;
      --ease: 220ms ease;
    }

    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }

    html {
      scroll-behavior: smooth;
      background: var(--bg);
    }

    body {
      min-height: 100vh;
      font-family: system-ui, -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
      color: var(--text);
      background:
        radial-gradient(circle at 18% 8%, rgba(59, 130, 246, .24), transparent 32%),
        radial-gradient(circle at 82% 18%, rgba(217, 70, 239, .18), transparent 30%),
        radial-gradient(circle at 50% 72%, rgba(34, 211, 238, .12), transparent 34%),
        linear-gradient(180deg, #050713 0%, #070b18 42%, #050713 100%);
      line-height: 1.75;
      overflow-x: hidden;
    }

    body::before {
      content: "";
      position: fixed;
      inset: 0;
      pointer-events: none;
      z-index: -2;
      background-image:
        linear-gradient(rgba(148, 163, 184, .045) 1px, transparent 1px),
        linear-gradient(90deg, rgba(148, 163, 184, .045) 1px, transparent 1px);
      background-size: 44px 44px;
      mask-image: linear-gradient(to bottom, rgba(0,0,0,.9), rgba(0,0,0,.25), transparent);
    }

    body::after {
      content: "";
      position: fixed;
      inset: 0;
      pointer-events: none;
      z-index: -1;
      opacity: .12;
      background-image: radial-gradient(rgba(255,255,255,.45) 1px, transparent 1px);
      background-size: 4px 4px;
      mix-blend-mode: overlay;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: color var(--ease), border-color var(--ease), background var(--ease), transform var(--ease);
    }

    img, svg {
      max-width: 100%;
      display: block;
    }

    button, input, textarea, select {
      font: inherit;
      color: inherit;
    }

    button {
      border: 0;
      cursor: pointer;
    }

    input, textarea, select {
      width: 100%;
      border: 1px solid var(--line);
      background: rgba(2, 6, 23, .52);
      border-radius: 15px;
      padding: 13px 15px;
      outline: none;
      transition: border-color var(--ease), box-shadow var(--ease), background var(--ease);
    }

    input::placeholder,
    textarea::placeholder {
      color: rgba(148, 163, 184, .78);
    }

    input:focus,
    textarea:focus,
    select:focus {
      border-color: rgba(56, 189, 248, .72);
      box-shadow: 0 0 0 4px rgba(56, 189, 248, .12);
      background: rgba(2, 6, 23, .72);
    }

    a:focus-visible,
    button:focus-visible,
    input:focus-visible,
    textarea:focus-visible,
    select:focus-visible {
      outline: 2px solid rgba(34, 211, 238, .9);
      outline-offset: 3px;
    }

    .container {
      width: min(100% - 48px, var(--container));
      margin-inline: auto;
    }

    .section {
      padding: 92px 0;
      position: relative;
    }

    .section-tight {
      padding: 64px 0;
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 7px 12px;
      border: 1px solid rgba(56, 189, 248, .28);
      border-radius: var(--pill);
      background: rgba(56, 189, 248, .08);
      color: #dbeafe;
      font-size: 13px;
      line-height: 1;
      box-shadow: inset 0 0 20px rgba(56, 189, 248, .05);
    }

    .eyebrow::before {
      content: "";
      width: 7px;
      height: 7px;
      border-radius: 50%;
      background: var(--cyan);
      box-shadow: 0 0 18px rgba(34, 211, 238, .9);
    }

    .section-head {
      max-width: 760px;
      margin-bottom: 30px;
    }

    .section-head.center {
      margin-inline: auto;
      text-align: center;
    }

    h1, h2, h3 {
      letter-spacing: -.04em;
      line-height: 1.14;
    }

    h1 {
      margin-top: 18px;
      font-size: clamp(34px, 5vw, 62px);
      font-weight: 820;
    }

    h2 {
      font-size: clamp(28px, 3.3vw, 40px);
      font-weight: 780;
      margin-top: 14px;
    }

    h3 {
      font-size: 22px;
      font-weight: 760;
    }

    p {
      color: var(--muted);
    }

    .lead {
      margin-top: 20px;
      font-size: 17px;
      color: #dbe7f7;
      max-width: 720px;
    }

    .muted {
      color: var(--weak);
    }

    .top-notice {
      position: relative;
      z-index: 30;
      background: rgba(2, 6, 23, .74);
      border-bottom: 1px solid rgba(148, 163, 184, .12);
      backdrop-filter: blur(16px);
    }

    .notice-inner {
      min-height: 38px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 14px;
      font-size: 13px;
      color: var(--muted);
    }

    .notice-actions {
      display: flex;
      gap: 8px;
      flex: 0 0 auto;
    }

    .notice-btn {
      border: 1px solid rgba(148, 163, 184, .22);
      border-radius: var(--pill);
      padding: 5px 10px;
      background: rgba(15, 23, 42, .72);
      color: var(--text);
      font-size: 12px;
    }

    .notice-btn:hover {
      border-color: rgba(56, 189, 248, .5);
      color: #e0f2fe;
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 25;
      height: var(--nav-h);
      background: rgba(5, 7, 19, .72);
      border-bottom: 1px solid rgba(148, 163, 184, .14);
      backdrop-filter: blur(18px) saturate(130%);
    }

    .nav-wrap {
      height: 100%;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 22px;
    }

    .brand {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      min-width: 0;
      font-weight: 800;
      letter-spacing: -.03em;
      color: var(--text);
    }

    .brand-mark {
      width: 36px;
      height: 36px;
      flex: 0 0 auto;
      border-radius: 14px;
      background:
        radial-gradient(circle at 32% 28%, #fff 0 7%, transparent 8%),
        linear-gradient(135deg, var(--blue), var(--purple) 62%, var(--pink));
      box-shadow: 0 0 28px rgba(56, 189, 248, .34);
      position: relative;
    }

    .brand-mark::after {
      content: "";
      position: absolute;
      inset: 8px;
      border-radius: 10px;
      border: 1px solid rgba(255,255,255,.45);
    }

    .brand-text {
      max-width: 250px;
      overflow: hidden;
      text-overflow: ellipsis;
      white-space: nowrap;
    }

    .nav-links {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 6px;
      padding: 6px;
      border: 1px solid rgba(148, 163, 184, .12);
      border-radius: var(--pill);
      background: rgba(15, 23, 42, .34);
      flex: 0 0 auto;
    }

    .nav-links a {
      padding: 9px 15px;
      border-radius: var(--pill);
      color: var(--muted);
      font-size: 14px;
      line-height: 1;
    }

    .nav-links a:hover,
    .nav-links a.active {
      color: var(--text);
      background: rgba(56, 189, 248, .12);
      box-shadow: inset 0 0 18px rgba(56, 189, 248, .06);
    }

    .nav-actions {
      display: flex;
      align-items: center;
      gap: 10px;
      min-width: 0;
    }

    .command-search {
      width: 210px;
      height: 42px;
      display: flex;
      align-items: center;
      gap: 9px;
      padding: 0 11px;
      border: 1px solid rgba(148, 163, 184, .16);
      border-radius: 15px;
      color: var(--weak);
      background: rgba(2, 6, 23, .42);
      transition: border-color var(--ease), box-shadow var(--ease), background var(--ease);
    }

    .command-search:focus-within {
      border-color: rgba(56, 189, 248, .58);
      box-shadow: 0 0 0 4px rgba(56, 189, 248, .11);
      background: rgba(2, 6, 23, .68);
    }

    .command-search input {
      border: 0;
      padding: 0;
      border-radius: 0;
      box-shadow: none;
      background: transparent;
      font-size: 13px;
    }

    .command-search input:focus {
      box-shadow: none;
      background: transparent;
    }

    .keycap {
      margin-left: auto;
      font-size: 11px;
      line-height: 1;
      color: rgba(203, 213, 225, .78);
      padding: 4px 6px;
      border: 1px solid rgba(148, 163, 184, .18);
      border-radius: 7px;
      background: rgba(15, 23, 42, .72);
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      min-height: 44px;
      padding: 12px 18px;
      border-radius: var(--pill);
      font-weight: 720;
      line-height: 1;
      white-space: nowrap;
      transition: transform var(--ease), box-shadow var(--ease), filter var(--ease), border-color var(--ease), background var(--ease);
    }

    .btn-primary {
      color: white;
      background: linear-gradient(135deg, var(--blue), var(--purple));
      box-shadow: 0 14px 34px rgba(59, 130, 246, .28), 0 0 26px rgba(139, 92, 246, .15);
    }

    .btn-primary:hover {
      transform: translateY(-2px);
      filter: brightness(1.08);
      box-shadow: 0 18px 46px rgba(59, 130, 246, .36), 0 0 34px rgba(139, 92, 246, .24);
    }

    .btn-primary:active,
    .btn-secondary:active {
      transform: translateY(0) scale(.99);
      box-shadow: var(--shadow-soft);
    }

    .btn-secondary {
      color: #e0f2fe;
      border: 1px solid rgba(148, 163, 184, .22);
      background: rgba(15, 23, 42, .52);
    }

    .btn-secondary:hover {
      border-color: rgba(56, 189, 248, .54);
      background: rgba(56, 189, 248, .09);
      transform: translateY(-2px);
      box-shadow: var(--glow);
    }

    .menu-toggle {
      display: none;
      width: 44px;
      height: 44px;
      border-radius: 14px;
      border: 1px solid rgba(148, 163, 184, .16);
      background: rgba(15, 23, 42, .58);
      color: var(--text);
    }

    .menu-toggle span {
      display: block;
      width: 18px;
      height: 2px;
      margin: 4px auto;
      border-radius: 2px;
      background: currentColor;
      transition: transform var(--ease), opacity var(--ease);
    }

    .mobile-panel {
      display: none;
    }

    .hero {
      padding: 84px 0 58px;
    }

    .hero-grid {
      display: grid;
      grid-template-columns: minmax(0, 1.08fr) minmax(360px, .92fr);
      gap: 44px;
      align-items: center;
    }

    .hero-copy {
      position: relative;
      z-index: 1;
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-top: 28px;
    }

    .trust-row {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 12px;
      margin-top: 30px;
      max-width: 690px;
    }

    .trust-item {
      display: flex;
      align-items: center;
      gap: 10px;
      padding: 13px 14px;
      border: 1px solid rgba(148, 163, 184, .14);
      border-radius: 16px;
      background: rgba(15, 23, 42, .38);
      color: var(--muted);
      font-size: 14px;
    }

    .trust-item i {
      width: 26px;
      height: 26px;
      display: inline-grid;
      place-items: center;
      border-radius: 9px;
      color: var(--cyan);
      background: rgba(34, 211, 238, .1);
      font-style: normal;
    }

    .hero-panel {
      position: relative;
      border-radius: var(--radius-lg);
      padding: 24px;
      border: 1px solid rgba(148, 163, 184, .18);
      background:
        linear-gradient(145deg, rgba(15, 23, 42, .74), rgba(8, 13, 28, .62)),
        radial-gradient(circle at 25% 18%, rgba(56, 189, 248, .2), transparent 30%);
      box-shadow: var(--shadow);
      backdrop-filter: blur(18px) saturate(130%);
      overflow: hidden;
    }

    .hero-panel::before {
      content: "";
      position: absolute;
      width: 220px;
      height: 220px;
      right: -78px;
      top: -70px;
      border-radius: 50%;
      background: rgba(232, 121, 249, .17);
      filter: blur(8px);
    }

    .panel-top {
      position: relative;
      z-index: 1;
      display: flex;
      align-items: flex-start;
      justify-content: space-between;
      gap: 16px;
      margin-bottom: 18px;
    }

    .score {
      display: inline-flex;
      align-items: center;
      gap: 5px;
      padding: 8px 10px;
      border-radius: var(--pill);
      color: #fef3c7;
      background: rgba(251, 191, 36, .12);
      border: 1px solid rgba(251, 191, 36, .22);
      font-size: 13px;
      line-height: 1;
      white-space: nowrap;
    }

    .abstract-cover {
      position: relative;
      min-height: 260px;
      border-radius: 24px;
      overflow: hidden;
      border: 1px solid rgba(148, 163, 184, .18);
      background:
        radial-gradient(circle at 35% 28%, rgba(56, 189, 248, .45), transparent 25%),
        radial-gradient(circle at 70% 62%, rgba(139, 92, 246, .42), transparent 30%),
        linear-gradient(135deg, rgba(2, 6, 23, .96), rgba(30, 41, 59, .72));
    }

    .abstract-cover::before {
      content: "";
      position: absolute;
      inset: 20px;
      border-radius: 22px;
      border: 1px solid rgba(255,255,255,.13);
      background:
        linear-gradient(90deg, transparent 0 46%, rgba(255,255,255,.08) 48% 52%, transparent 54%),
        linear-gradient(rgba(255,255,255,.05) 1px, transparent 1px);
      background-size: auto, 100% 30px;
      transform: skewY(-5deg);
    }

    .cover-label {
      position: absolute;
      left: 20px;
      bottom: 20px;
      right: 20px;
      display: flex;
      align-items: end;
      justify-content: space-between;
      gap: 16px;
    }

    .cover-label strong {
      font-size: 24px;
      letter-spacing: -.04em;
    }

    .cover-label span {
      color: var(--muted);
      font-size: 13px;
    }

    .metric-strip {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 10px;
      margin-top: 14px;
    }

    .metric {
      padding: 14px;
      border-radius: 16px;
      border: 1px solid rgba(148, 163, 184, .14);
      background: rgba(2, 6, 23, .36);
    }

    .metric strong {
      display: block;
      font-size: 20px;
      line-height: 1.1;
    }

    .metric span {
      color: var(--weak);
      font-size: 12px;
    }

    .filter-bar {
      display: grid;
      grid-template-columns: minmax(260px, 1fr) auto auto;
      gap: 12px;
      padding: 16px;
      border: 1px solid rgba(148, 163, 184, .16);
      border-radius: 24px;
      background: rgba(15, 23, 42, .45);
      backdrop-filter: blur(18px);
      box-shadow: var(--shadow-soft);
    }

    .filter-search {
      display: flex;
      align-items: center;
      gap: 10px;
      padding-inline: 14px;
      border: 1px solid rgba(148, 163, 184, .16);
      border-radius: 16px;
      background: rgba(2, 6, 23, .42);
    }

    .filter-search input {
      border: 0;
      background: transparent;
      padding-inline: 0;
      box-shadow: none;
    }

    .filter-search input:focus {
      box-shadow: none;
      background: transparent;
    }

    .tag-row {
      display: flex;
      align-items: center;
      gap: 8px;
      flex-wrap: wrap;
    }

    .tag,
    .sort-chip,
    .badge {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 6px;
      border-radius: var(--pill);
      border: 1px solid rgba(148, 163, 184, .18);
      background: rgba(15, 23, 42, .48);
      color: var(--muted);
      font-size: 13px;
      line-height: 1;
      white-space: nowrap;
    }

    .tag,
    .sort-chip {
      min-height: 42px;
      padding: 10px 13px;
    }

    .tag:hover,
    .sort-chip:hover,
    .sort-chip.active {
      color: var(--text);
      border-color: rgba(56, 189, 248, .45);
      background: rgba(56, 189, 248, .1);
      box-shadow: 0 0 22px rgba(56, 189, 248, .11);
    }

    .badge {
      padding: 7px 10px;
      color: #e0f2fe;
      background: rgba(56, 189, 248, .1);
      border-color: rgba(56, 189, 248, .22);
    }

    .badge.hot {
      color: #fce7f3;
      background: rgba(232, 121, 249, .12);
      border-color: rgba(232, 121, 249, .26);
    }

    .content-layout {
      display: grid;
      grid-template-columns: minmax(290px, .82fr) minmax(0, 1.18fr);
      gap: 20px;
      align-items: stretch;
    }

    .card {
      position: relative;
      border: 1px solid rgba(148, 163, 184, .16);
      background: var(--panel);
      border-radius: var(--radius);
      box-shadow: var(--shadow-soft);
      backdrop-filter: blur(18px) saturate(130%);
      overflow: hidden;
      transition: transform var(--ease), border-color var(--ease), box-shadow var(--ease), background var(--ease);
    }

    .card:hover {
      transform: translateY(-4px);
      border-color: var(--line-hover);
      box-shadow: var(--shadow), var(--glow);
      background: rgba(15, 23, 42, .72);
    }

    .featured-card {
      padding: 28px;
      min-height: 100%;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .mini-cover {
      height: 190px;
      margin: 20px 0;
      border-radius: 22px;
      border: 1px solid rgba(148, 163, 184, .16);
      background:
        radial-gradient(circle at 28% 32%, rgba(56, 189, 248, .36), transparent 25%),
        radial-gradient(circle at 82% 68%, rgba(232, 121, 249, .26), transparent 30%),
        linear-gradient(135deg, rgba(15, 23, 42, .94), rgba(30, 41, 59, .64));
      position: relative;
      overflow: hidden;
    }

    .mini-cover::after {
      content: "精选";
      position: absolute;
      right: 18px;
      top: 16px;
      padding: 7px 10px;
      border-radius: var(--pill);
      color: #dbeafe;
      border: 1px solid rgba(255,255,255,.14);
      background: rgba(2, 6, 23, .44);
      font-size: 12px;
    }

    .feature-list {
      display: grid;
      gap: 12px;
      margin: 20px 0 24px;
      list-style: none;
    }

    .feature-list li {
      display: flex;
      gap: 10px;
      color: var(--muted);
      font-size: 15px;
    }

    .feature-list li::before {
      content: "✓";
      flex: 0 0 22px;
      width: 22px;
      height: 22px;
      display: inline-grid;
      place-items: center;
      border-radius: 8px;
      color: #ecfeff;
      background: rgba(34, 211, 238, .13);
      border: 1px solid rgba(34, 211, 238, .18);
      line-height: 1;
    }

    .compact-grid {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 18px;
    }

    .selection-card {
      padding: 22px;
      min-height: 248px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .selection-card .card-head {
      display: flex;
      align-items: flex-start;
      justify-content: space-between;
      gap: 12px;
      margin-bottom: 14px;
    }

    .icon-tile {
      width: 44px;
      height: 44px;
      display: grid;
      place-items: center;
      border-radius: 15px;
      color: white;
      background: linear-gradient(135deg, rgba(56, 189, 248, .32), rgba(139, 92, 246, .32));
      border: 1px solid rgba(255,255,255,.12);
      box-shadow: inset 0 0 24px rgba(255,255,255,.04);
    }

    .selection-card p {
      margin-top: 10px;
      font-size: 14px;
    }

    .card-meta {
      margin-top: 16px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      color: var(--weak);
      font-size: 13px;
    }

    .inline-link {
      color: #bae6fd;
      font-weight: 720;
    }

    .inline-link:hover {
      color: white;
    }

    .upgrade-banner {
      display: grid;
      grid-template-columns: 1fr auto;
      gap: 24px;
      align-items: center;
      padding: 30px;
      border-radius: 28px;
      border: 1px solid rgba(56, 189, 248, .26);
      background:
        radial-gradient(circle at 14% 30%, rgba(56, 189, 248, .22), transparent 30%),
        radial-gradient(circle at 80% 46%, rgba(139, 92, 246, .2), transparent 28%),
        rgba(15, 23, 42, .62);
      box-shadow: var(--shadow), inset 0 0 0 1px rgba(255,255,255,.03);
      overflow: hidden;
    }

    .upgrade-banner p {
      margin-top: 8px;
      max-width: 780px;
    }

    .steps {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
    }

    .step {
      padding: 22px;
      border-radius: var(--radius);
      border: 1px solid rgba(148, 163, 184, .16);
      background: rgba(15, 23, 42, .48);
      position: relative;
      overflow: hidden;
    }

    .step::before {
      content: attr(data-step);
      display: inline-grid;
      place-items: center;
      width: 36px;
      height: 36px;
      margin-bottom: 18px;
      border-radius: 13px;
      color: white;
      font-weight: 800;
      background: linear-gradient(135deg, var(--blue), var(--purple));
      box-shadow: 0 0 24px rgba(56, 189, 248, .18);
    }

    .step h3 {
      font-size: 19px;
      margin-bottom: 9px;
    }

    .step p {
      font-size: 14px;
    }

    .assurance-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 14px;
    }

    .assurance {
      padding: 20px;
      border-radius: var(--radius);
      border: 1px solid rgba(148, 163, 184, .15);
      background: rgba(8, 13, 28, .68);
    }

    .assurance strong {
      display: block;
      margin: 10px 0 5px;
      font-size: 17px;
    }

    .assurance p {
      font-size: 14px;
    }

    .assurance .icon-tile {
      width: 38px;
      height: 38px;
      color: var(--cyan);
    }

    .faq-list {
      display: grid;
      gap: 12px;
      max-width: 900px;
      margin: 0 auto;
    }

    .faq-item {
      border: 1px solid rgba(148, 163, 184, .16);
      border-radius: 18px;
      background: rgba(15, 23, 42, .52);
      overflow: hidden;
      backdrop-filter: blur(18px);
    }

    .faq-q {
      width: 100%;
      min-height: 62px;
      padding: 18px 20px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      color: var(--text);
      background: transparent;
      text-align: left;
      font-weight: 720;
    }

    .faq-q::after {
      content: "+";
      width: 28px;
      height: 28px;
      display: grid;
      place-items: center;
      border-radius: 10px;
      color: var(--cyan);
      border: 1px solid rgba(34, 211, 238, .18);
      background: rgba(34, 211, 238, .08);
      flex: 0 0 auto;
      transition: transform var(--ease);
    }

    .faq-item.open .faq-q::after {
      content: "–";
      transform: rotate(180deg);
    }

    .faq-a {
      display: none;
      padding: 0 20px 20px;
      color: var(--muted);
      font-size: 15px;
    }

    .faq-item.open .faq-a {
      display: block;
    }

    .consult {
      display: grid;
      grid-template-columns: .9fr 1.1fr;
      gap: 22px;
      align-items: stretch;
      padding: 30px;
      border-radius: var(--radius-lg);
      border: 1px solid rgba(148, 163, 184, .16);
      background:
        radial-gradient(circle at 18% 18%, rgba(56, 189, 248, .16), transparent 28%),
        radial-gradient(circle at 86% 80%, rgba(232, 121, 249, .12), transparent 26%),
        rgba(8, 13, 28, .72);
      box-shadow: var(--shadow);
      backdrop-filter: blur(18px);
    }

    .consult-list {
      margin-top: 22px;
      display: grid;
      gap: 12px;
      list-style: none;
    }

    .consult-list li {
      display: flex;
      align-items: flex-start;
      gap: 10px;
      color: var(--muted);
    }

    .consult-list li::before {
      content: "";
      width: 9px;
      height: 9px;
      margin-top: 10px;
      border-radius: 50%;
      background: var(--cyan);
      box-shadow: 0 0 16px rgba(34, 211, 238, .72);
      flex: 0 0 auto;
    }

    .form-card {
      padding: 22px;
      border-radius: 24px;
      border: 1px solid rgba(148, 163, 184, .16);
      background: rgba(2, 6, 23, .34);
    }

    .form-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 14px;
    }

    .form-grid .full {
      grid-column: 1 / -1;
    }

    label {
      display: grid;
      gap: 8px;
      color: #dbeafe;
      font-size: 13px;
      font-weight: 680;
    }

    textarea {
      min-height: 110px;
      resize: vertical;
    }

    .form-note {
      margin-top: 12px;
      font-size: 13px;
      color: var(--weak);
    }

    .footer {
      padding: 58px 0 28px;
      border-top: 1px solid rgba(148, 163, 184, .14);
      background: rgba(2, 6, 23, .68);
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.45fr .8fr .8fr 1.05fr;
      gap: 30px;
    }

    .footer p,
    .footer a {
      color: var(--weak);
      font-size: 14px;
    }

    .footer .brand {
      margin-bottom: 14px;
    }

    .footer h4 {
      margin-bottom: 14px;
      color: var(--text);
      font-size: 15px;
    }

    .footer a:not(.brand) {
      display: block;
      margin: 9px 0;
    }

    .footer a:hover {
      color: #e0f2fe;
    }

    .copyright {
      margin-top: 34px;
      padding-top: 20px;
      border-top: 1px solid rgba(148, 163, 184, .12);
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      color: rgba(148, 163, 184, .84);
      font-size: 13px;
    }

    @media (max-width: 1100px) {
      .command-search {
        width: 170px;
      }

      .hero-grid {
        grid-template-columns: 1fr;
      }

      .hero-panel {
        max-width: 680px;
      }

      .content-layout {
        grid-template-columns: 1fr;
      }

      .steps,
      .assurance-grid {
        grid-template-columns: repeat(2, 1fr);
      }

      .footer-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    @media (max-width: 860px) {
      :root {
        --nav-h: 70px;
      }

      .container {
        width: min(100% - 36px, var(--container));
      }

      .site-header {
        height: auto;
        min-height: var(--nav-h);
      }

      .nav-wrap {
        min-height: var(--nav-h);
      }

      .nav-links,
      .nav-actions {
        display: none;
      }

      .menu-toggle {
        display: inline-block;
      }

      .mobile-panel {
        display: none;
        padding: 0 0 16px;
      }

      .mobile-panel.open {
        display: block;
      }

      .mobile-panel-inner {
        display: grid;
        gap: 10px;
        padding: 14px;
        border: 1px solid rgba(148, 163, 184, .16);
        border-radius: 22px;
        background: rgba(15, 23, 42, .72);
        box-shadow: var(--shadow-soft);
      }

      .mobile-panel a {
        padding: 12px 14px;
        border-radius: 14px;
        color: var(--muted);
      }

      .mobile-panel a.active,
      .mobile-panel a:hover {
        color: var(--text);
        background: rgba(56, 189, 248, .1);
      }

      .mobile-panel .command-search {
        display: flex;
        width: 100%;
      }

      .hero {
        padding-top: 58px;
      }

      .trust-row,
      .metric-strip,
      .compact-grid,
      .form-grid {
        grid-template-columns: 1fr;
      }

      .filter-bar {
        grid-template-columns: 1fr;
      }

      .tag-row {
        overflow-x: auto;
        flex-wrap: nowrap;
        padding-bottom: 2px;
      }

      .upgrade-banner,
      .consult {
        grid-template-columns: 1fr;
      }

      .upgrade-banner .btn {
        width: 100%;
      }
    }

    @media (max-width: 560px) {
      .container {
        width: min(100% - 28px, var(--container));
      }

      .section {
        padding: 66px 0;
      }

      .notice-inner {
        align-items: flex-start;
        flex-direction: column;
        padding: 10px 0;
      }

      .brand-text {
        max-width: 210px;
        font-size: 14px;
      }

      h1 {
        font-size: 36px;
      }

      .lead {
        font-size: 15px;
      }

      .hero-actions,
      .notice-actions {
        width: 100%;
      }

      .hero-actions .btn,
      .notice-actions .notice-btn {
        flex: 1;
      }

      .hero-panel,
      .consult,
      .upgrade-banner {
        padding: 20px;
        border-radius: 24px;
      }

      .abstract-cover {
        min-height: 220px;
      }

      .cover-label {
        align-items: flex-start;
        flex-direction: column;
      }

      .steps,
      .assurance-grid,
      .footer-grid {
        grid-template-columns: 1fr;
      }

      .copyright {
        align-items: flex-start;
        flex-direction: column;
      }
    }

    @media (prefers-reduced-motion: reduce) {
      *, *::before, *::after {
        scroll-behavior: auto !important;
        transition-duration: 1ms !important;
        animation-duration: 1ms !important;
      }
    }