:root{
      --bg:#f7f8fc;
      --card:#ffffff;
      --card2:#fff7f2;
      --line:#e8ebf2;
      --text:#1f2937;
      --muted:#5b6475;
      --primary:#ff7a59;
      --primary2:#6b7cff;
      --accent:#15b8a6;
      --warm:#ffd166;
      --shadow:0 18px 50px rgba(31,41,55,.08);
      --radius:22px;
      --radius2:16px;
      --max:1200px;
    }
    *{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(107,124,255,.12), transparent 24%),
        radial-gradient(circle at top right, rgba(255,122,89,.14), transparent 26%),
        linear-gradient(180deg, #fffdfb 0%, #f8f9ff 38%, #f7f8fc 100%);
    }
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    .container{width:min(var(--max), calc(100% - 32px)); margin:0 auto}
    .site-header{
      position:sticky; top:0; z-index:50;
      backdrop-filter:blur(14px);
      background:rgba(255,255,255,.78);
      border-bottom:1px solid rgba(232,235,242,.85);
    }
    .nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:14px 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:12px;background:#fff;box-shadow:0 8px 20px rgba(0,0,0,.06);padding:4px}
    .brand-txt{min-width:0}
    .brand-txt strong{display:block;font-size:1.02rem;line-height:1.1}
    .brand-txt span{display:block;font-size:.86rem;color:var(--muted);margin-top:2px}
    .nav-toggle{display:none;border:1px solid var(--line);background:#fff;border-radius:14px;padding:10px 12px;color:var(--text)}
    .nav-links{display:flex;align-items:center;gap:16px;flex-wrap:wrap;justify-content:flex-end}
    .nav-links a{font-size:.95rem;color:#374151;padding:8px 10px;border-radius:10px;transition:.2s ease}
    .nav-links a:hover{background:#fff2ec;color:#d85a35}
    .hero{padding:34px 0 18px}
    .hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:22px;align-items:stretch}
    .hero-main{
      position:relative;overflow:hidden;
      background:
        linear-gradient(135deg, rgba(255,122,89,.10), rgba(107,124,255,.10)),
        linear-gradient(180deg, #fff, #fffaf8);
      border:1px solid #f0e8e4;
      border-radius:28px;
      padding:34px;
      box-shadow:var(--shadow);
    }
    .hero-main::before,.hero-main::after{
      content:"";position:absolute;border-radius:999px;filter:blur(2px);pointer-events:none
    }
    .hero-main::before{width:220px;height:220px;background:rgba(255,209,102,.24);right:-70px;top:-70px}
    .hero-main::after{width:180px;height:180px;background:rgba(21,184,166,.18);left:-60px;bottom:-60px}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;background:#fff;padding:9px 14px;border-radius:999px;border:1px solid #f0ebe8;color:#7a4e3d;font-size:.9rem;box-shadow:0 8px 22px rgba(0,0,0,.04)}
    .eyebrow i{width:8px;height:8px;border-radius:50%;background:var(--primary);display:inline-block}
    h1{margin:16px 0 14px;font-size:clamp(2rem,4.6vw,3.9rem);line-height:1.08;letter-spacing:-.03em}
    .hero p{margin:0;color:var(--muted);font-size:1.05rem;line-height:1.85;max-width:42rem}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}
    .btn{
      display:inline-flex;align-items:center;justify-content:center;gap:8px;
      border-radius:14px;padding:12px 18px;font-weight:700;border:1px solid transparent;transition:.2s ease;
      cursor:pointer
    }
    .btn-primary{background:linear-gradient(135deg,var(--primary),#ff9f6a);color:#fff;box-shadow:0 14px 28px rgba(255,122,89,.28)}
    .btn-secondary{background:#fff;border-color:var(--line);color:var(--text)}
    .btn-ghost{background:#fff8f4;border-color:#ffd8ca;color:#a64d2d}
    .btn:hover{transform:translateY(-2px)}
    .hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
    .tag{background:#fff;border:1px solid var(--line);border-radius:999px;padding:8px 12px;font-size:.88rem;color:#4b5563}
    .hero-side{
      display:grid;gap:14px;
      background:linear-gradient(180deg,#ffffff,#fffaf7);
      border:1px solid #f0e8e4;border-radius:28px;padding:22px;box-shadow:var(--shadow)
    }
    .mini-stat{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
    .stat{
      background:linear-gradient(180deg,#fff, #fff9f6);
      border:1px solid #f0ebe8;border-radius:18px;padding:16px
    }
    .stat strong{display:block;font-size:1.3rem}
    .stat span{display:block;color:var(--muted);font-size:.9rem;margin-top:4px}
    .hero-card{
      border-radius:20px;padding:16px 16px 14px;background:linear-gradient(135deg,#f9fbff,#fff6ef);
      border:1px solid #f1e6dd
    }
    .hero-card h3{margin:0 0 8px;font-size:1.02rem}
    .hero-card p{margin:0;color:var(--muted);font-size:.94rem;line-height:1.7}
    .quick-links{display:flex;flex-wrap:wrap;gap:10px;margin-top:10px}
    .quick-links a{font-size:.88rem;background:#fff;border:1px solid var(--line);padding:8px 10px;border-radius:999px;color:#445}
    .section{padding:18px 0}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:16px;margin-bottom:16px}
    .section-head h2{margin:0;font-size:1.55rem}
    .section-head p{margin:0;color:var(--muted);max-width:52rem;line-height:1.75}
    .grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
    .grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
    .grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
    .card{
      background:var(--card);border:1px solid var(--line);border-radius:var(--radius2);
      box-shadow:0 10px 30px rgba(31,41,55,.05);padding:18px;transition:.2s ease
    }
    .card:hover{transform:translateY(-3px);box-shadow:0 18px 40px rgba(31,41,55,.08)}
    .metric strong{display:block;font-size:1.45rem}
    .metric span{display:block;color:var(--muted);margin-top:6px;line-height:1.7}
    .icon{
      width:42px;height:42px;border-radius:14px;display:grid;place-items:center;font-size:1.1rem;
      background:linear-gradient(135deg,rgba(255,122,89,.15),rgba(107,124,255,.14));color:#b94f31;margin-bottom:12px
    }
    .service h3,.step h3,.case h3,.review h3{margin:0 0 10px;font-size:1.05rem}
    .service p,.step p,.case p,.review p{margin:0;color:var(--muted);line-height:1.75;font-size:.95rem}
    .steps{counter-reset:step}
    .step{position:relative;overflow:hidden}
    .step::before{
      counter-increment:step;content:counter(step);
      position:absolute;right:16px;top:14px;font-size:2.2rem;font-weight:800;color:rgba(107,124,255,.12)
    }
    .step .line{height:4px;width:52px;border-radius:999px;background:linear-gradient(90deg,var(--primary),var(--primary2));margin-bottom:14px}
    .table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:20px;background:#fff}
    table{width:100%;border-collapse:collapse;min-width:860px}
    th,td{padding:14px 16px;border-bottom:1px solid #eef1f5;text-align:left;vertical-align:top}
    th{background:#fff8f4;color:#8a4d32;font-size:.95rem}
    td{color:#374151;line-height:1.7}
    .price-box{
      background:linear-gradient(135deg,#fff,#fff7f0);
      border:1px solid #f0e4dc;border-radius:20px;padding:18px
    }
    .price-box .row{display:flex;justify-content:space-between;gap:12px;padding:11px 0;border-bottom:1px dashed #edded5}
    .price-box .row:last-child{border-bottom:none}
    .price-box b{font-size:1rem}
    .progress{
      height:10px;background:#edf0f7;border-radius:999px;overflow:hidden;margin-top:10px
    }
    .progress span{display:block;height:100%;border-radius:inherit;background:linear-gradient(90deg,var(--primary),var(--primary2))}
    .tag-cloud{display:flex;flex-wrap:wrap;gap:10px}
    .tag-cloud span{padding:9px 12px;border-radius:999px;background:#fff;border:1px solid var(--line);color:#4b5563;font-size:.88rem}
    .case-grid .card{background:linear-gradient(180deg,#fff,#fffaf7)}
    .review .meta{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:10px}
    .stars{color:#f59e0b;letter-spacing:2px}
    details{
      background:#fff;border:1px solid var(--line);border-radius:18px;padding:14px 16px;box-shadow:0 10px 24px rgba(31,41,55,.04)
    }
    details+details{margin-top:12px}
    summary{cursor:pointer;list-style:none;font-weight:700;color:#273042}
    summary::-webkit-details-marker{display:none}
    details p{margin:10px 0 0;color:var(--muted);line-height:1.8}
    .articles{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
    .article-item{display:flex;gap:14px;align-items:flex-start}
    .article-thumb{
      width:98px;aspect-ratio:1/1;border-radius:16px;overflow:hidden;background:#f3f5fb;border:1px solid #e8ebf2;flex:none
    }
    .article-thumb img{width:100%;height:100%;object-fit:cover}
    .article-item h3{margin:0 0 8px;font-size:1.03rem}
    .article-item p{margin:0;color:var(--muted);line-height:1.7;font-size:.94rem}
    form{display:grid;gap:12px}
    .form-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
    .field{display:grid;gap:8px}
    label{font-size:.92rem;color:#374151;font-weight:600}
    input,select,textarea{
      width:100%;border:1px solid #dfe5ef;background:#fff;border-radius:14px;padding:13px 14px;
      font:inherit;color:var(--text);outline:none;transition:.2s ease
    }
    input:focus,select:focus,textarea:focus{border-color:#ff9f6a;box-shadow:0 0 0 4px rgba(255,122,89,.12)}
    textarea{min-height:124px;resize:vertical}
    .footer{
      margin-top:24px;background:#fff;border-top:1px solid var(--line);color:#344054
    }
    .footer .container{padding:24px 0}
    .footer-grid{display:grid;grid-template-columns:1.1fr .9fr .9fr;gap:16px;align-items:start}
    .footer a{color:#3b82f6}
    .footer p,.footer li{color:#566074;line-height:1.8}
    .footer ul{padding:0;margin:0;list-style:none;display:grid;gap:8px}
    .fine{border-top:1px solid #edf1f5;margin-top:18px;padding-top:14px;font-size:.9rem;color:#6b7280;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}
    .floating{
      position:fixed;right:16px;bottom:18px;z-index:60;display:grid;gap:10px
    }
    .floating a,.floating button{
      width:52px;height:52px;border-radius:16px;border:1px solid #f0e1d8;background:#fff;box-shadow:0 14px 30px rgba(0,0,0,.12);
      display:grid;place-items:center;color:#d35f36;font-size:1.05rem;cursor:pointer
    }
    .back-top{opacity:0;pointer-events:none;transition:.2s ease}
    .back-top.show{opacity:1;pointer-events:auto}
    .qr-pop{
      position:absolute;right:62px;bottom:0;background:#fff;border:1px solid #e8ebf2;border-radius:18px;padding:12px;
      box-shadow:0 18px 48px rgba(31,41,55,.14);display:none;width:180px
    }
    .qr-wrap{position:relative}
    .qr-wrap:hover .qr-pop{display:block}
    .mobile-only{display:none}
    .marquee{
      overflow:hidden;border:1px solid #f0e9e4;background:#fff;border-radius:18px;padding:11px 0;margin-top:14px
    }
    .marquee div{
      display:inline-block;white-space:nowrap;padding-left:100%;
      animation:scroll 24s linear infinite;color:#4b5563
    }
    .marquee span{margin-right:24px}
    .soft-panel{
      background:linear-gradient(135deg,#fff,#fff6ef);border:1px solid #f1e3d8;border-radius:24px;padding:18px
    }
    .step-links{display:flex;flex-wrap:wrap;gap:10px}
    .step-links a{padding:9px 12px;border-radius:999px;background:#fff;border:1px solid var(--line);font-size:.9rem;color:#445}
    .timeline{display:grid;gap:12px}
    .timeline .item{
      display:grid;grid-template-columns:64px 1fr;gap:14px;align-items:start;background:#fff;border:1px solid var(--line);border-radius:18px;padding:14px
    }
    .timeline .year{font-weight:800;color:#b24d2d;background:#fff7f2;border:1px solid #f0ddd4;border-radius:14px;padding:10px;text-align:center}
    .reveal{opacity:0;transform:translateY(14px);transition:.55s ease}
    .reveal.show{opacity:1;transform:none}
    .home-link{font-weight:700}
    .home-link:hover{text-decoration:underline}
    @keyframes scroll{0%{transform:translateX(0)}100%{transform:translateX(-100%)}}
    @media (max-width: 980px){
      .hero-grid,.grid-4,.grid-3,.grid-2,.footer-grid,.articles{grid-template-columns:1fr}
      .nav-toggle{display:inline-flex}
      .nav-links{display:none;position:absolute;left:0;right:0;top:100%;background:rgba(255,255,255,.98);border-bottom:1px solid var(--line);padding:12px 16px;box-shadow:0 10px 30px rgba(0,0,0,.05)}
      .nav-links.open{display:flex;flex-direction:column;align-items:flex-start;gap:6px}
      .nav-wrap{position:relative}
      .form-grid{grid-template-columns:1fr}
      .mobile-only{display:inline-flex}
      table{min-width:760px}
    }