:root{
      --bg:#f6f2ff;
      --bg2:#ffffff;
      --card:#ffffff;
      --text:#1f2330;
      --muted:#61677a;
      --line:#e6def7;
      --primary:#6d2cff;
      --primary2:#8f5bff;
      --accent:#ff5db1;
      --shadow:0 18px 45px rgba(97,43,195,.12);
      --radius:22px;
      --radius-sm:16px;
      --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(109,44,255,.12), transparent 28%),
        radial-gradient(circle at top right, rgba(255,93,177,.10), transparent 30%),
        linear-gradient(180deg, #f9f7ff 0%, #fff 38%, #fbf9ff 100%);
    }
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    .container{width:min(var(--container),calc(100% - 32px));margin:0 auto}
    .topbar{
      position:sticky;top:0;z-index:40;
      backdrop-filter:saturate(160%) blur(12px);
      background:rgba(255,255,255,.82);
      border-bottom:1px solid rgba(230,222,247,.8);
    }
    .nav{
      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 18px rgba(109,44,255,.14)}
    .brand h2{margin:0;font-size:18px;line-height:1.1}
    .brand small{display:block;color:var(--muted);font-weight:500;margin-top:3px}
    .nav-links{display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:flex-end}
    .nav-links a{font-size:14px;color:#3a4052;padding:8px 10px;border-radius:999px;transition:.25s}
    .nav-links a:hover{background:#f1eaff;color:var(--primary)}
    .nav-cta{display:flex;gap:10px;align-items:center}
    .btn{
      display:inline-flex;align-items:center;justify-content:center;gap:8px;
      border:0;border-radius:999px;padding:12px 18px;font-weight:700;cursor:pointer;
      transition:.25s;white-space:nowrap
    }
    .btn-primary{background:linear-gradient(135deg,var(--primary),var(--accent));color:#fff;box-shadow:0 12px 26px rgba(109,44,255,.24)}
    .btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 34px rgba(109,44,255,.28)}
    .btn-ghost{background:#f4efff;color:var(--primary)}
    .btn-ghost:hover{transform:translateY(-2px);background:#eee4ff}
    .menu-btn{display:none}
    .hero{padding:30px 0 14px}
    .hero-grid{
      display:grid;grid-template-columns:1.15fr .85fr;gap:22px;align-items:stretch
    }
    .hero-main,.hero-side,.panel,.card,.faq-item,.review,.article,.form-box,.table-box,.timeline,.cta-strip{
      background:rgba(255,255,255,.88);border:1px solid rgba(230,222,247,.9);border-radius:var(--radius);box-shadow:var(--shadow)
    }
    .hero-main{padding:34px;position:relative;overflow:hidden}
    .hero-main:before,.hero-main:after{
      content:"";position:absolute;border-radius:999px;filter:blur(6px);pointer-events:none
    }
    .hero-main:before{width:210px;height:210px;background:rgba(109,44,255,.12);top:-60px;right:-20px}
    .hero-main:after{width:160px;height:160px;background:rgba(255,93,177,.10);bottom:-50px;left:55%}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;padding:8px 14px;border-radius:999px;background:#f3ecff;color:var(--primary);font-weight:700;font-size:13px}
    h1{margin:16px 0 12px;font-size:clamp(30px,5vw,54px);line-height:1.08;letter-spacing:-.02em}
    .lead{margin:0;color:var(--muted);font-size:16px;line-height:1.75;max-width:60ch}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}
    .hero-points{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:26px}
    .mini{
      padding:14px;border-radius:18px;background:linear-gradient(180deg,#fff,#faf7ff);border:1px solid var(--line)
    }
    .mini strong{display:block;font-size:18px}
    .mini span{display:block;color:var(--muted);font-size:13px;margin-top:4px;line-height:1.5}
    .hero-side{padding:20px;display:grid;gap:14px}
    .side-box{padding:18px;border-radius:18px;background:linear-gradient(135deg,#1f163b,#4927a8 58%,#7f3dff);color:#fff}
    .side-box p{margin:8px 0 0;line-height:1.7;color:rgba(255,255,255,.88)}
    .side-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
    .stat{padding:16px;border-radius:18px;background:#fff;border:1px solid var(--line)}
    .stat strong{display:block;font-size:22px;color:var(--primary)}
    .stat span{display:block;margin-top:5px;color:var(--muted);font-size:13px;line-height:1.4}
    section{padding:18px 0}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:16px;margin-bottom:14px}
    .section-head h2{margin:0;font-size:clamp(22px,3vw,32px)}
    .section-head p{margin:0;color:var(--muted);max-width:66ch;line-height:1.7}
    .grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
    .card{padding:20px}
    .card h3{margin:10px 0 8px;font-size:18px}
    .card p,.card li,.review p,.article p{color:var(--muted);line-height:1.75}
    .icon{
      width:44px;height:44px;border-radius:14px;display:grid;place-items:center;
      background:linear-gradient(135deg,rgba(109,44,255,.12),rgba(255,93,177,.14));color:var(--primary);font-size:20px
    }
    .tags{display:flex;flex-wrap:wrap;gap:10px}
    .tag{padding:8px 12px;border-radius:999px;background:#f5f0ff;border:1px solid #eadfff;color:#3d3357;font-size:13px}
    .panel{padding:20px}
    .feature-list{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
    .feature{padding:16px;border-radius:18px;background:#fcfaff;border:1px solid var(--line)}
    .feature strong{display:block;margin-bottom:6px}
    .timeline{padding:20px}
    .steps{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
    .step{padding:16px;border-radius:18px;background:#fff;border:1px solid var(--line)}
    .step .num{display:inline-grid;place-items:center;width:34px;height:34px;border-radius:50%;background:linear-gradient(135deg,var(--primary),var(--accent));color:#fff;font-weight:700}
    .step h3{margin:12px 0 8px;font-size:16px}
    .table-box{padding:18px;overflow:auto}
    table{width:100%;border-collapse:collapse;min-width:760px}
    th,td{padding:14px 12px;border-bottom:1px solid #ece6f7;text-align:left;vertical-align:top}
    th{background:#faf7ff;color:#2b3140}
    .highlight{color:var(--primary);font-weight:800}
    .rating{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-top:10px}
    .stars{color:#ffb400;font-size:20px;letter-spacing:2px}
    .split{display:grid;grid-template-columns:1fr 1fr;gap:16px}
    .review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .review{padding:18px}
    .review .who{display:flex;align-items:center;gap:12px;margin-bottom:10px}
    .avatar{width:42px;height:42px;border-radius:50%;background:linear-gradient(135deg,#e4d7ff,#ffd6ea);display:grid;place-items:center;color:#5a2fe0;font-weight:800}
    .article-list{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .article{padding:18px}
    .article time{display:block;color:#8a819f;font-size:13px;margin-bottom:10px}
    .faq{display:grid;gap:12px}
    .faq-item{padding:0;overflow:hidden}
    .faq-q{
      width:100%;background:none;border:0;padding:18px 20px;font:inherit;text-align:left;cursor:pointer;
      display:flex;align-items:center;justify-content:space-between;gap:12px;color:var(--text)
    }
    .faq-q strong{font-size:16px}
    .faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease;padding:0 20px}
    .faq-item.open .faq-a{max-height:220px;padding-bottom:18px}
    .faq-a p{margin:0;color:var(--muted);line-height:1.75}
    .form-box{padding:20px}
    form{display:grid;gap:14px}
    .form-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
    label{display:block;font-weight:700;margin-bottom:8px}
    input,select,textarea{
      width:100%;border:1px solid #ddd3f4;border-radius:14px;background:#fff;padding:13px 14px;
      font:inherit;color:var(--text);outline:none;transition:.2s
    }
    input:focus,select:focus,textarea:focus{border-color:var(--primary);box-shadow:0 0 0 4px rgba(109,44,255,.10)}
    textarea{min-height:118px;resize:vertical}
    .submit{justify-content:flex-start}
    .footer{
      margin-top:16px;padding:24px 0 28px;background:#171224;color:#f4efff
    }
    .footer .container{display:grid;gap:16px}
    .footer-top{display:grid;grid-template-columns:1.2fr .8fr .8fr;gap:18px;align-items:start}
    .footer h3,.footer h4,.footer p,.footer a,.footer li{color:#f4efff}
    .footer a{opacity:.92}
    .footer a:hover{opacity:1;text-decoration:underline}
    .footer small{color:#d7cdf6}
    .footer-links{display:flex;flex-wrap:wrap;gap:10px}
    .footer-links a{padding:8px 12px;border-radius:999px;background:rgba(255,255,255,.08)}
    .float-bar{
      position:fixed;right:16px;bottom:16px;z-index:50;display:grid;gap:10px
    }
    .float-btn{
      width:52px;height:52px;border-radius:50%;display:grid;place-items:center;
      background:linear-gradient(135deg,var(--primary),var(--accent));color:#fff;box-shadow:0 12px 26px rgba(109,44,255,.28)
    }
    .kefu{
      position:fixed;left:16px;bottom:16px;z-index:50;width:min(310px,calc(100vw - 32px));
      background:#fff;border:1px solid var(--line);border-radius:20px;box-shadow:var(--shadow);overflow:hidden
    }
    .kefu .head{padding:14px 16px;background:linear-gradient(135deg,#f4ecff,#fff);display:flex;justify-content:space-between;align-items:center;gap:12px}
    .kefu .body{padding:14px 16px;display:grid;grid-template-columns:110px 1fr;gap:14px;align-items:center}
    .kefu .body img{width:110px;height:110px;object-fit:cover;border-radius:16px;border:1px solid var(--line)}
    .muted{color:var(--muted)}
    .mobile-only{display:none}
    .section-note{font-size:13px;color:#7a728a}
    .service-net{display:grid;grid-template-columns:repeat(5,1fr);gap:12px}
    .service-net .mini{text-align:center}
    .price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .price{padding:18px;border-radius:18px;border:1px solid var(--line);background:linear-gradient(180deg,#fff,#faf7ff)}
    .price strong{font-size:28px;color:var(--primary)}
    .price ul{margin:12px 0 0;padding-left:18px;color:var(--muted);line-height:1.8}
    .list-cols{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
    .bullet{display:grid;gap:10px;padding-left:18px}
    .bullet li{line-height:1.7;color:var(--muted)}
    .banner-wrap{display:grid;grid-template-columns:1fr 1fr;gap:16px}
    .ai-page-image{border-radius:20px;border:1px solid var(--line);box-shadow:var(--shadow)}
    @media (max-width: 980px){
      .hero-grid,.grid-3,.grid-4,.review-grid,.article-list,.footer-top,.split,.banner-wrap,.price-grid,.service-net,.steps{grid-template-columns:1fr 1fr}
      .hero-points,.feature-list,.list-cols{grid-template-columns:1fr}
      .nav-links{display:none}
      .menu-btn{display:inline-flex}
      .mobile-only{display:block}
    }
    @media (max-width: 720px){
      .container{width:min(var(--container),calc(100% - 20px))}
      .hero-main{padding:22px}
      .hero-grid,.grid-3,.grid-4,.review-grid,.article-list,.footer-top,.split,.banner-wrap,.price-grid,.service-net,.steps,.form-grid{grid-template-columns:1fr}
      .hero-points{grid-template-columns:1fr}
      .kefu{display:none}
      .float-bar{right:12px;bottom:12px}
      .section-head{flex-direction:column;align-items:start}
      h1{font-size:clamp(28px,9vw,42px)}
    }
    .reveal{animation:up .8s ease both}
    @keyframes up{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:none}}