:root{
      --bg:#f7f5f0;
      --bg2:#fcfbf8;
      --panel:#ffffff;
      --line:#e7dfd2;
      --text:#1f2937;
      --muted:#5f6877;
      --brand:#5b5ef7;
      --brand2:#a855f7;
      --accent:#f97316;
      --success:#0f9d7a;
      --shadow:0 18px 50px rgba(39, 49, 68, .08);
      --radius:20px;
      --radius-sm:14px;
      --container:1180px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
      color:var(--text);
      background:
        radial-gradient(circle at top left, rgba(91,94,247,.09), transparent 30%),
        radial-gradient(circle at 85% 8%, rgba(168,85,247,.08), transparent 25%),
        linear-gradient(180deg, #fffdf8 0%, var(--bg) 28%, #f8f7f2 100%);
      line-height:1.6;
    }
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    .container{width:min(var(--container), calc(100% - 32px));margin:0 auto}
    header,main,footer{width:100%}
    .topbar{
      position:sticky;top:0;z-index:50;
      backdrop-filter:blur(14px);
      background:rgba(247,245,240,.82);
      border-bottom:1px solid rgba(231,223,210,.85);
    }
    .nav{
      display:flex;align-items:center;justify-content:space-between;gap:16px;
      min-height:76px;padding:10px 0;
    }
    .brand{display:flex;align-items:center;gap:12px;min-width:0}
    .brand .ai-page-logo{width:42px;height:42px;object-fit:contain;border-radius:10px;background:#fff;border:1px solid var(--line);box-shadow:0 8px 20px rgba(0,0,0,.05)}
    .brand-txt{min-width:0}
    .brand-txt strong{display:block;font-size:18px;letter-spacing:.4px}
    .brand-txt span{display:block;font-size:12px;color:var(--muted)}
    .nav-links{display:flex;align-items:center;gap:16px;flex-wrap:wrap;justify-content:flex-end}
    .nav-links a{font-size:14px;color:#344054;padding:8px 10px;border-radius:999px;transition:.2s ease}
    .nav-links a:hover,.nav-links a:focus{background:rgba(91,94,247,.08);color:#1f2a44}
    .nav-actions{display:flex;align-items:center;gap:10px}
    .btn{
      display:inline-flex;align-items:center;justify-content:center;gap:8px;
      border:1px solid transparent;border-radius:999px;
      padding:12px 18px;font-weight:700;font-size:14px;
      transition:.22s ease;cursor:pointer;white-space:nowrap;
    }
    .btn-primary{background:linear-gradient(135deg,var(--brand),var(--brand2));color:#fff;box-shadow:0 12px 28px rgba(91,94,247,.28)}
    .btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 30px rgba(91,94,247,.34)}
    .btn-ghost{background:#fff;border-color:var(--line);color:#263244}
    .btn-ghost:hover{transform:translateY(-1px);border-color:#cfc4b2}
    .menu-btn{display:none}
    .hero{padding:38px 0 18px}
    .hero-grid{
      display:grid;grid-template-columns:1.2fr .8fr;gap:22px;align-items:stretch
    }
    .hero-copy,.hero-side,.panel,.card,.faq-item,.review,.timeline-item,.article,.form-wrap,.table-wrap,.compare-box,.price-box{
      background:rgba(255,255,255,.82);
      border:1px solid rgba(231,223,210,.9);
      border-radius:var(--radius);
      box-shadow:var(--shadow);
    }
    .hero-copy{padding:34px;position:relative;overflow:hidden}
    .hero-copy:before{
      content:"";position:absolute;inset:auto -10% -30% auto;width:360px;height:360px;border-radius:50%;
      background:radial-gradient(circle, rgba(91,94,247,.12), transparent 62%);
      pointer-events:none;
    }
    .kicker{
      display:inline-flex;align-items:center;gap:8px;
      padding:7px 12px;border-radius:999px;background:rgba(91,94,247,.08);
      color:#3a3fd6;font-size:13px;font-weight:700
    }
    h1{font-size:clamp(32px,5vw,54px);line-height:1.08;margin:16px 0 14px;letter-spacing:-.02em}
    .hero p{margin:0;color:var(--muted);font-size:16px;max-width:58ch}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin:24px 0 20px}
    .hero-points{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-top:18px}
    .mini-stat{padding:14px 14px 12px;border-radius:16px;background:linear-gradient(180deg,#fff, #faf8f3);border:1px solid var(--line)}
    .mini-stat strong{display:block;font-size:20px}
    .mini-stat span{font-size:13px;color:var(--muted)}
    .hero-side{padding:20px;display:grid;gap:14px;align-content:start}
    .side-card{padding:18px;border-radius:18px;background:linear-gradient(135deg,rgba(91,94,247,.08),rgba(168,85,247,.06));border:1px solid rgba(91,94,247,.12)}
    .side-card h3,.section-title h2{margin:0 0 8px;font-size:22px}
    .side-card p,.card p,.review p,.article p,.faq-item p,.timeline-item p,.panel p{margin:0;color:var(--muted)}
    .tag-cloud{display:flex;flex-wrap:wrap;gap:10px}
    .tag-cloud span,.pill{
      padding:8px 11px;border-radius:999px;background:#fff;border:1px solid var(--line);font-size:13px;color:#425066
    }
    .section{padding:18px 0}
    .section-title{display:flex;align-items:end;justify-content:space-between;gap:16px;margin:8px 0 16px}
    .section-title p{margin:0;color:var(--muted);max-width:66ch}
    .grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
    .grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
    .card{padding:22px;transition:.2s ease}
    .card:hover,.review:hover,.article:hover,.timeline-item:hover{transform:translateY(-3px)}
    .card h3{margin:0 0 8px;font-size:18px}
    .icon{
      width:44px;height:44px;border-radius:14px;display:grid;place-items:center;
      background:linear-gradient(135deg,rgba(91,94,247,.14),rgba(168,85,247,.10));color:#3f46e5;font-weight:800;margin-bottom:14px
    }
    .workflow{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
    .step{position:relative;padding:22px}
    .step-num{font-size:12px;font-weight:800;letter-spacing:.12em;color:#7c3aed}
    .step h3{margin:8px 0 6px;font-size:17px}
    .table-wrap{overflow:auto;padding:10px}
    table{width:100%;border-collapse:separate;border-spacing:0;min-width:860px}
    th,td{padding:14px 14px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
    th{background:#faf7f2;font-size:14px;color:#344054}
    td{font-size:14px;color:#374151}
    .badge{display:inline-flex;align-items:center;gap:6px;padding:7px 10px;border-radius:999px;font-size:12px;font-weight:700}
    .badge.ok{background:rgba(15,157,122,.10);color:#0e7d62}
    .badge.warn{background:rgba(249,115,22,.12);color:#b45309}
    .compare-box{padding:24px}
    .score{
      display:flex;flex-wrap:wrap;gap:12px;align-items:center;margin-top:12px
    }
    .score strong{font-size:28px}
    .price-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:16px}
    .price-box{padding:24px}
    .price-list{display:grid;gap:12px;margin-top:14px}
    .price-item{display:flex;justify-content:space-between;gap:16px;padding:12px 0;border-bottom:1px dashed var(--line);font-size:14px}
    .price-item:last-child{border-bottom:none}
    .reviews{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
    .review{padding:20px}
    .stars{color:#f59e0b;letter-spacing:2px;font-size:15px;margin-bottom:10px}
    .review .meta{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:14px;font-size:13px;color:var(--muted)}
    .faq{display:grid;gap:12px}
    .faq-item{padding:0;overflow:hidden}
    .faq-q{width:100%;border:0;background:transparent;padding:18px 20px;text-align:left;font-size:16px;font-weight:700;color:#243041;display:flex;justify-content:space-between;gap:14px;cursor:pointer}
    .faq-a{padding:0 20px 18px;color:var(--muted);display:none}
    .faq-item.open .faq-a{display:block}
    .faq-item.open .faq-q span{transform:rotate(45deg)}
    .articles{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
    .article{padding:20px}
    .article .label{font-size:12px;color:#7c3aed;font-weight:800;letter-spacing:.08em;margin-bottom:10px}
    .panel{padding:24px}
    .contact-grid{display:grid;grid-template-columns:.92fr 1.08fr;gap:16px;align-items:start}
    form{display:grid;gap:12px}
    .field{display:grid;gap:8px}
    .field label{font-size:14px;font-weight:700;color:#334155}
    .field input,.field select,.field textarea{
      width:100%;border:1px solid var(--line);border-radius:14px;background:#fff;color:#1f2937;
      padding:13px 14px;font:inherit;outline:none;transition:.18s ease
    }
    .field input:focus,.field select:focus,.field textarea:focus{border-color:#8b5cf6;box-shadow:0 0 0 4px rgba(139,92,246,.12)}
    .field textarea{min-height:124px;resize:vertical}
    .contact-list{display:grid;gap:12px;margin-top:14px}
    .contact-row{display:flex;gap:12px;align-items:flex-start;padding:14px;border-radius:16px;background:#fff;border:1px solid var(--line)}
    .contact-row strong{display:block}
    .footer{
      margin-top:20px;padding:22px 0 26px;border-top:1px solid rgba(231,223,210,.95);
      background:linear-gradient(180deg, rgba(255,255,255,.65), rgba(247,245,240,.95));
      color:#334155
    }
    .footer-grid{display:grid;grid-template-columns:1.15fr .85fr 1fr;gap:16px;align-items:start}
    .footer a{color:#2942b8}
    .footer h3{margin:0 0 10px;font-size:16px}
    .footer p,.footer li{color:#475569}
    .footer ul{margin:0;padding-left:18px}
    .muted{color:var(--muted)}
    .floating{
      position:fixed;right:18px;bottom:18px;z-index:60;display:grid;gap:10px
    }
    .float-btn{
      width:48px;height:48px;border-radius:50%;display:grid;place-items:center;
      background:linear-gradient(135deg,var(--brand),var(--brand2));color:#fff;box-shadow:0 14px 30px rgba(91,94,247,.28)
    }
    .service-float{
      position:fixed;left:18px;bottom:18px;z-index:60;
      background:rgba(255,255,255,.92);border:1px solid var(--line);border-radius:18px;padding:12px;box-shadow:var(--shadow);width:min(292px,calc(100vw - 36px))
    }
    .service-float .qrcode{display:flex;gap:12px;align-items:center}
    .service-float .qrcode img{width:72px;height:72px;object-fit:cover;border-radius:14px;border:1px solid var(--line)}
    .service-float strong{display:block;margin-bottom:4px}
    .timeline{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
    .timeline-item{padding:20px}
    .images-row{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
    .images-row img{border-radius:18px;border:1px solid var(--line);background:#fff;aspect-ratio: 4 / 3;object-fit:cover}
    .sticky-home{margin-left:8px}
    .scroll-reveal{opacity:0;transform:translateY(14px);transition:.55s ease}
    .scroll-reveal.show{opacity:1;transform:none}
    .mobile-only{display:none}
    @media (max-width: 1024px){
      .hero-grid,.price-grid,.contact-grid,.footer-grid{grid-template-columns:1fr}
      .workflow,.grid-3,.reviews,.articles,.timeline,.images-row{grid-template-columns:1fr 1fr}
      .hero-points{grid-template-columns:1fr}
    }
    @media (max-width: 760px){
      .container{width:min(var(--container), calc(100% - 24px))}
      .nav{min-height:64px}
      .nav-links{display:none;position:absolute;left:12px;right:12px;top:74px;background:#fff;border:1px solid var(--line);border-radius:18px;padding:12px;box-shadow:var(--shadow);z-index:55}
      .nav-links.open{display:flex;flex-direction:column;align-items:flex-start;gap:4px}
      .nav-links a{width:100%;padding:12px 10px}
      .menu-btn{display:inline-flex}
      .nav-actions .btn-ghost{display:none}
      .hero{padding-top:20px}
      .hero-copy{padding:22px}
      .hero-actions{display:grid;grid-template-columns:1fr;gap:10px}
      .grid-3,.grid-2,.workflow,.reviews,.articles,.timeline,.images-row{grid-template-columns:1fr}
      .section-title{align-items:flex-start;flex-direction:column}
      .mobile-only{display:block}
      .service-float{left:12px;right:12px;bottom:82px;width:auto}
      .floating{right:12px;bottom:12px}
      table{min-width:720px}
    }