:root{
      --bg:#f7f4ff;
      --bg2:#ffffff;
      --card:#ffffff;
      --text:#1c2030;
      --muted:#5f6578;
      --line:#e7e1f5;
      --pri:#6f39ff;
      --pri2:#9b5cff;
      --acc:#ff5bc8;
      --ok:#1f8b5c;
      --shadow:0 18px 45px rgba(74, 42, 153, .12);
      --radius:20px;
      --radius2:28px;
      --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 12% 10%, rgba(255,91,200,.12), transparent 22%),
        radial-gradient(circle at 86% 12%, rgba(111,57,255,.13), transparent 23%),
        linear-gradient(180deg, #fbfaff 0%, #f6f2ff 40%, #ffffff 100%);
    }
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    .container{width:min(100% - 32px, var(--container)); margin:0 auto}
    .topbar{
      position:sticky; top:0; z-index:50;
      backdrop-filter: blur(16px);
      background:rgba(255,255,255,.78);
      border-bottom:1px solid rgba(231,225,245,.9);
    }
    .nav{
      display:flex; align-items:center; justify-content:space-between; gap:18px;
      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 strong{display:block; font-size:1.02rem; letter-spacing:.3px}
    .brand span{display:block; font-size:.82rem; color:var(--muted)}
    .nav-links{display:flex; align-items:center; gap:16px; flex-wrap:wrap; justify-content:flex-end}
    .nav-links a{font-size:.95rem; color:#30354a; padding:8px 10px; border-radius:999px; transition:.2s}
    .nav-links a:hover{background:#f1ebff; color:var(--pri)}
    .nav-cta{display:flex; align-items:center; gap:10px}
    .btn{
      display:inline-flex; align-items:center; justify-content:center; gap:8px;
      border:0; cursor:pointer; border-radius:999px; padding:12px 18px;
      font-weight:700; transition:.22s; box-shadow:none;
    }
    .btn-primary{background:linear-gradient(135deg,var(--pri),var(--acc)); color:#fff; box-shadow:0 14px 30px rgba(111,57,255,.22)}
    .btn-secondary{background:#fff; color:var(--pri); border:1px solid rgba(111,57,255,.18)}
    .btn:hover{transform:translateY(-2px); box-shadow:0 14px 28px rgba(74,42,153,.14)}
    .menu-toggle{display:none; border:1px solid var(--line); background:#fff; border-radius:12px; width:44px; height:44px; align-items:center; justify-content:center}
    .menu-toggle span{display:block; width:18px; height:2px; background:var(--text); position:relative}
    .menu-toggle span:before,.menu-toggle span:after{content:""; position:absolute; left:0; width:18px; height:2px; background:var(--text)}
    .menu-toggle span:before{top:-6px}.menu-toggle span:after{top:6px}
    .hero{padding:42px 0 26px}
    .hero-grid{display:grid; grid-template-columns:1.15fr .85fr; gap:22px; align-items:stretch}
    .hero-copy{
      background:linear-gradient(135deg, rgba(255,255,255,.92), rgba(247,242,255,.94));
      border:1px solid rgba(231,225,245,.95);
      border-radius:var(--radius2);
      padding:30px;
      box-shadow:var(--shadow);
      position:relative; overflow:hidden;
    }
    .hero-copy:before,.hero-copy:after{
      content:""; position:absolute; border-radius:50%; filter:blur(4px); opacity:.9; pointer-events:none;
    }
    .hero-copy:before{width:160px;height:160px; background:radial-gradient(circle, rgba(111,57,255,.16), transparent 65%); right:-40px; top:-20px}
    .hero-copy:after{width:220px;height:220px; background:radial-gradient(circle, rgba(255,91,200,.12), transparent 68%); left:-90px; bottom:-110px}
    .eyebrow{display:inline-flex; align-items:center; gap:8px; font-size:.9rem; color:var(--pri); background:#f4edff; border:1px solid #e2d6ff; padding:8px 12px; border-radius:999px}
    h1{margin:14px 0 14px; font-size:clamp(2rem, 4vw, 3.4rem); line-height:1.1; letter-spacing:-.02em}
    .hero-copy p{margin:0 0 16px; color:var(--muted); font-size:1.02rem; line-height:1.8; max-width:62ch}
    .hero-actions{display:flex; flex-wrap:wrap; gap:12px; margin:20px 0 18px}
    .hero-meta{display:flex; flex-wrap:wrap; gap:10px}
    .tag{padding:8px 12px; border-radius:999px; background:#fff; border:1px solid var(--line); color:#40465d; font-size:.92rem}
    .hero-panel{
      display:grid; gap:14px;
      grid-template-rows:auto auto 1fr;
    }
    .panel-card{
      background:linear-gradient(180deg,#ffffff, #fbf8ff);
      border:1px solid rgba(231,225,245,.95);
      border-radius:var(--radius);
      padding:18px;
      box-shadow:var(--shadow);
    }
    .stats{display:grid; grid-template-columns:repeat(4,1fr); gap:14px; margin-top:18px}
    .stat{
      background:#fff; border:1px solid var(--line); border-radius:18px; padding:18px;
      box-shadow:0 12px 26px rgba(82,44,165,.08);
    }
    .stat strong{display:block; font-size:1.45rem; color:var(--pri)}
    .stat span{display:block; margin-top:6px; color:var(--muted); font-size:.92rem; line-height:1.55}
    section{padding:24px 0}
    .section-head{display:flex; align-items:flex-end; justify-content:space-between; gap:16px; margin-bottom:16px}
    .section-head h2{margin:0; font-size:clamp(1.4rem, 2.6vw, 2.1rem)}
    .section-head p{margin:0; color:var(--muted); max-width:68ch; line-height:1.7}
    .grid-3{display:grid; grid-template-columns:repeat(3,1fr); gap:16px}
    .grid-2{display:grid; grid-template-columns:repeat(2,1fr); gap:16px}
    .card{
      background:var(--card); border:1px solid var(--line); border-radius:20px; padding:20px;
      box-shadow:0 14px 35px rgba(77, 46, 146, .07); transition:.22s;
    }
    .card:hover{transform:translateY(-4px); box-shadow:0 20px 42px rgba(77,46,146,.12)}
    .card h3{margin:0 0 10px; font-size:1.08rem}
    .card p, .card li{color:var(--muted); line-height:1.75}
    .feature-list{display:grid; gap:10px; margin:0; padding:0; list-style:none}
    .feature-list li{padding-left:18px; position:relative}
    .feature-list li:before{content:""; width:8px; height:8px; border-radius:50%; background:linear-gradient(135deg,var(--pri),var(--acc)); position:absolute; left:0; top:.7em}
    .band{
      background:linear-gradient(135deg, rgba(111,57,255,.08), rgba(255,91,200,.06));
      border:1px solid rgba(111,57,255,.12);
      border-radius:var(--radius2);
      padding:22px;
    }
    .pill-cloud{display:flex; flex-wrap:wrap; gap:10px}
    .pill{background:#fff; border:1px solid var(--line); border-radius:999px; padding:9px 13px; font-size:.92rem; color:#384057}
    .table-wrap{overflow:auto; border-radius:18px; border:1px solid var(--line); background:#fff; box-shadow:var(--shadow)}
    table{width:100%; border-collapse:collapse; min-width:760px}
    th,td{padding:14px 16px; text-align:left; border-bottom:1px solid #edf0f7; vertical-align:top}
    th{background:#faf8ff; color:#22283a; font-size:.95rem}
    td{color:#4c5368}
    .score{font-size:1.3rem; font-weight:800; color:var(--pri)}
    .timeline{display:grid; grid-template-columns:repeat(4,1fr); gap:14px}
    .step{
      background:#fff; border:1px solid var(--line); border-radius:18px; padding:18px; position:relative;
    }
    .step .no{display:inline-flex; width:34px; height:34px; align-items:center; justify-content:center; border-radius:12px; color:#fff; font-weight:800; background:linear-gradient(135deg,var(--pri),var(--acc)); margin-bottom:12px}
    .two-col{display:grid; grid-template-columns:1fr 1fr; gap:16px; align-items:start}
    .compare-box{display:grid; gap:12px}
    .compare-row{display:grid; grid-template-columns:1.2fr .9fr .9fr; gap:12px; padding:14px 16px; background:#fff; border:1px solid var(--line); border-radius:16px}
    .compare-row strong{color:var(--text)}
    .highlight{background:linear-gradient(135deg,#f6f0ff,#fff2fb); border:1px solid rgba(111,57,255,.14)}
    .form{
      display:grid; grid-template-columns:repeat(2,1fr); gap:14px;
    }
    .field{display:grid; gap:8px}
    .field.full{grid-column:1 / -1}
    label{font-weight:700; font-size:.94rem}
    input, select, textarea{
      width:100%; border:1px solid #dcdff0; background:#fff; color:var(--text);
      border-radius:14px; padding:12px 14px; outline:none; transition:.2s;
      font:inherit;
    }
    textarea{min-height:120px; resize:vertical}
    input:focus,select:focus,textarea:focus{border-color:rgba(111,57,255,.6); box-shadow:0 0 0 4px rgba(111,57,255,.12)}
    .faq{display:grid; gap:12px}
    details{
      background:#fff; border:1px solid var(--line); border-radius:16px; padding:0 16px; box-shadow:0 12px 26px rgba(77,46,146,.06)
    }
    summary{
      list-style:none; cursor:pointer; padding:16px 0; font-weight:700; color:#22283a;
      display:flex; align-items:center; justify-content:space-between; gap:12px;
    }
    summary::-webkit-details-marker{display:none}
    summary:after{content:"＋"; color:var(--pri); font-size:1.2rem}
    details[open] summary:after{content:"－"}
    details p{margin:0 0 16px; color:var(--muted); line-height:1.8}
    .reviews{display:grid; grid-template-columns:repeat(3,1fr); gap:16px}
    .review .role{color:var(--pri); font-weight:700; font-size:.92rem; margin-bottom:8px}
    .review .stars{color:#ff9b24; letter-spacing:2px; margin-bottom:10px}
    .news{display:grid; grid-template-columns:repeat(2,1fr); gap:16px}
    .article-list{display:grid; gap:12px}
    .article{
      display:flex; justify-content:space-between; gap:12px; padding:14px 16px; border:1px solid var(--line);
      border-radius:16px; background:#fff;
    }
    .article span{color:var(--muted); font-size:.9rem}
    .contact-grid{display:grid; grid-template-columns:1.1fr .9fr; gap:16px}
    .contact-card{background:linear-gradient(180deg,#fff, #fbf8ff); border:1px solid var(--line); border-radius:20px; padding:20px}
    .footer{
      margin-top:18px;
      background:#1d1730;
      color:#eef0ff;
      padding:26px 0 20px;
    }
    .footer a{color:#ffffff}
    .footer .muted{color:#c9d0ff}
    .footer-grid{display:grid; grid-template-columns:1.2fr .8fr 1fr; gap:18px}
    .footer small{color:#c9d0ff}
    .footer-links{display:flex; flex-wrap:wrap; gap:10px}
    .footer-links a{padding:8px 12px; border-radius:999px; background:rgba(255,255,255,.08)}
    .floating{
      position:fixed; right:16px; bottom:16px; z-index:60; display:grid; gap:10px
    }
    .float-btn{
      width:48px;height:48px;border-radius:14px; display:flex; align-items:center; justify-content:center;
      background:linear-gradient(135deg,var(--pri),var(--acc)); color:#fff; box-shadow:0 16px 28px rgba(111,57,255,.24)
    }
    .service-flow{display:grid; grid-template-columns:repeat(3,1fr); gap:16px}
    .banner-images{display:grid; grid-template-columns:repeat(3,1fr); gap:12px}
    .banner-images img{border-radius:18px; border:1px solid var(--line); box-shadow:var(--shadow)}
    .mobile-only{display:none}
    .reveal{opacity:0; transform:translateY(18px); transition:.6s ease}
    .reveal.in{opacity:1; transform:none}
    @media (max-width: 980px){
      .hero-grid,.grid-3,.grid-2,.reviews,.news,.contact-grid,.footer-grid,.service-flow,.timeline,.two-col,.banner-images{grid-template-columns:1fr}
      .stats{grid-template-columns:repeat(2,1fr)}
      .nav-links{display:none}
      .menu-toggle{display:inline-flex}
      .nav.open .nav-links{
        display:flex; position:absolute; left:16px; right:16px; top:72px; background:#fff; border:1px solid var(--line);
        border-radius:18px; padding:12px; box-shadow:var(--shadow); flex-direction:column; align-items:flex-start;
      }
      .nav{position:relative}
      .nav-cta{display:none}
      .mobile-only{display:block}
      .form{grid-template-columns:1fr}
    }
    @media (max-width: 640px){
      .hero{padding-top:24px}
      .hero-copy{padding:22px}
      .stats{grid-template-columns:1fr 1fr}
      .compare-row{grid-template-columns:1fr}
      .section-head{flex-direction:column; align-items:flex-start}
      .brand span{display:none}
      .container{width:min(100% - 22px, var(--container))}
    }