:root{
      --bg:#f7f4ff;
      --panel:#ffffff;
      --panel-2:#fbf9ff;
      --text:#1f2330;
      --muted:#606677;
      --line:#e6ddff;
      --brand:#6f3cff;
      --brand-2:#9c5bff;
      --brand-3:#2ec5ff;
      --accent:#ff5da8;
      --shadow:0 18px 50px rgba(86, 48, 180, .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,"PingFang SC","Microsoft YaHei",sans-serif;
      color:var(--text);
      background:
        radial-gradient(circle at top left, rgba(111,60,255,.12), transparent 28%),
        radial-gradient(circle at 85% 5%, rgba(46,197,255,.10), transparent 24%),
        linear-gradient(180deg, #faf8ff 0%, #f4f1ff 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:40;
      backdrop-filter:blur(16px);
      background:rgba(255,255,255,.78);
      border-bottom:1px solid rgba(230,221,255,.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; flex:none}
    .brand-text{display:flex; flex-direction:column; gap:2px; min-width:0}
    .brand-text strong{font-size:18px; letter-spacing:.4px}
    .brand-text span{font-size:12px; color:var(--muted)}
    .menu{display:flex; align-items:center; gap:18px; flex-wrap:wrap; justify-content:flex-end}
    .menu a{font-size:14px; color:#2c3140; padding:8px 10px; border-radius:999px; transition:.25s}
    .menu a:hover,.menu a:focus{background:#f1eaff; color:var(--brand)}
    .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:11px 16px;
      font-weight:600; font-size:14px; cursor:pointer; transition:.25s;
      box-shadow:0 10px 24px rgba(111,60,255,.16);
    }
    .btn-primary{background:linear-gradient(135deg,var(--brand),var(--brand-2)); color:#fff}
    .btn-primary:hover{transform:translateY(-2px); box-shadow:0 16px 28px rgba(111,60,255,.24)}
    .btn-ghost{background:#fff; color:var(--brand); border-color:var(--line)}
    .btn-ghost:hover{transform:translateY(-2px); border-color:#cab5ff}
    .menu-toggle{display:none; background:#fff; color:var(--text); border:1px solid var(--line); box-shadow:none}
    main{padding-bottom:24px}
    section{padding:46px 0}
    .hero{padding:42px 0 22px}
    .hero-grid{
      display:grid; grid-template-columns:1.18fr .82fr; gap:22px; align-items:stretch;
    }
    .hero-card,.panel,.card,.faq-item,.comment,.article,.quote,.timeline li,.form-wrap,.price-box,.compare-box{
      background:rgba(255,255,255,.88);
      border:1px solid rgba(230,221,255,.92);
      border-radius:var(--radius);
      box-shadow:var(--shadow);
    }
    .hero-card{padding:34px; position:relative; overflow:hidden}
    .hero-card::before{
      content:""; position:absolute; inset:-2px -2px auto auto; width:260px; height:260px;
      background:radial-gradient(circle, rgba(156,91,255,.20), transparent 62%);
      pointer-events:none;
    }
    .eyebrow{
      display:inline-flex; align-items:center; gap:8px; padding:8px 12px; border-radius:999px;
      background:linear-gradient(135deg, rgba(111,60,255,.12), rgba(46,197,255,.10));
      color:var(--brand); font-weight:700; font-size:13px;
    }
    h1{margin:16px 0 14px; font-size:clamp(30px,4.5vw,54px); line-height:1.08}
    .hero p{margin:0; color:var(--muted); line-height:1.8}
    .hero-actions{display:flex; flex-wrap:wrap; gap:12px; margin:26px 0 22px}
    .hero-points{display:grid; grid-template-columns:repeat(3,1fr); gap:12px; margin-top:18px}
    .mini{
      background:linear-gradient(180deg,#fff, #f7f3ff);
      border:1px solid var(--line); border-radius:18px; padding:14px;
    }
    .mini strong{display:block; font-size:18px; margin-bottom:6px}
    .mini span{font-size:13px; color:var(--muted)}
    .hero-side{display:grid; gap:14px}
    .stats{
      display:grid; grid-template-columns:repeat(2,1fr); gap:12px;
    }
    .stat{padding:18px}
    .stat b{display:block; font-size:28px; color:var(--brand); line-height:1}
    .stat span{display:block; margin-top:8px; color:var(--muted); font-size:13px}
    .panel{padding:20px}
    .panel h3,.section-title h2{margin:0 0 8px; font-size:28px}
    .section-title{margin-bottom:18px}
    .section-title p{margin:0; color:var(--muted); line-height:1.8}
    .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,.card h4{margin:0 0 10px}
    .card p{margin:0; color:var(--muted); line-height:1.75}
    .tag-cloud{display:flex; flex-wrap:wrap; gap:10px}
    .tag{padding:10px 14px; background:#fff; border:1px solid var(--line); border-radius:999px; font-size:13px; color:#3a4050}
    .service-list{display:grid; grid-template-columns:repeat(2,1fr); gap:14px}
    .service-item{
      padding:18px; border-radius:18px; background:linear-gradient(180deg,#fff, #fbf8ff);
      border:1px solid var(--line)
    }
    .service-item strong{display:block; margin-bottom:8px}
    .service-item span{color:var(--muted); font-size:13px; line-height:1.75}
    .steps{display:grid; grid-template-columns:repeat(4,1fr); gap:14px}
    .step{padding:18px; position:relative}
    .step .num{
      width:34px; height:34px; border-radius:50%; display:grid; place-items:center;
      background:linear-gradient(135deg,var(--brand),var(--brand-3)); color:#fff; font-weight:700; margin-bottom:12px
    }
    .step p{margin:0; color:var(--muted); line-height:1.75}
    .table-wrap{overflow:auto; border-radius:18px; border:1px solid var(--line); background:#fff}
    table{width:100%; border-collapse:collapse; min-width:860px}
    th,td{padding:14px 16px; border-bottom:1px solid #efe8ff; text-align:left; vertical-align:top}
    th{background:#f7f2ff; color:#38235e}
    td{color:#3b4150; font-size:14px}
    .badge{display:inline-flex; align-items:center; padding:6px 10px; border-radius:999px; background:#f2ebff; color:var(--brand); font-size:12px; font-weight:700}
    .compare-box{padding:22px}
    .score{
      display:flex; flex-wrap:wrap; gap:10px; align-items:center; margin-top:12px
    }
    .score .star{color:#ffb400; font-size:20px; letter-spacing:2px}
    .gallery{
      display:grid; grid-template-columns:repeat(3,1fr); gap:16px
    }
    .gallery .card{overflow:hidden}
    .gallery img{border-radius:16px; margin-bottom:12px}
    .comment-grid{display:grid; grid-template-columns:repeat(3,1fr); gap:16px}
    .comment{padding:20px}
    .comment .role{color:var(--brand); font-weight:700; margin-bottom:8px; font-size:13px}
    .comment p{margin:0; color:var(--muted); line-height:1.8}
    .article-list{display:grid; grid-template-columns:repeat(3,1fr); gap:16px}
    .article{padding:20px}
    .article small{color:var(--brand); font-weight:700}
    .article a{display:block; margin-top:12px; color:#1f2431; font-weight:700}
    .article p{margin:10px 0 0; color:var(--muted); line-height:1.75}
    .faq{display:grid; gap:12px}
    .faq-item{padding:0; overflow:hidden}
    .faq-q{
      width:100%; text-align:left; padding:18px 20px; border:0; background:transparent;
      color:var(--text); font-weight:700; font-size:15px; display:flex; justify-content:space-between; gap:12px; cursor:pointer
    }
    .faq-a{max-height:0; overflow:hidden; transition:max-height .3s ease; padding:0 20px}
    .faq-item.open .faq-a{max-height:180px; padding-bottom:18px}
    .faq-a p{margin:0; color:var(--muted); line-height:1.8}
    .form-wrap{padding:24px}
    form{display:grid; gap:14px}
    .form-grid{display:grid; grid-template-columns:repeat(2,1fr); gap:14px}
    label{display:grid; gap:8px; font-size:14px; font-weight:700; color:#2a3040}
    input,select,textarea{
      width:100%; border:1px solid #dccfff; border-radius:14px; padding:13px 14px;
      font:inherit; background:#fff; color:var(--text); outline:none; transition:.2s
    }
    input:focus,select:focus,textarea:focus{border-color:var(--brand); box-shadow:0 0 0 4px rgba(111,60,255,.10)}
    textarea{min-height:120px; resize:vertical}
    .footer{
      padding:22px 0 30px;
      background:#f1ebff;
      border-top:1px solid #e1d4ff;
      color:#1f2330;
    }
    .footer a{color:#2a2f40}
    .footer .footer-grid{display:grid; grid-template-columns:1.2fr .8fr .8fr; gap:18px}
    .footer p,.footer li{color:#4c5161; line-height:1.8}
    .footer ul{margin:0; padding:0; list-style:none}
    .footer h3{margin:0 0 10px}
    .bottom{margin-top:18px; padding-top:16px; border-top:1px solid #ddd1ff; font-size:13px; color:#5c6170}
    .float-tools{
      position:fixed; right:18px; bottom:18px; z-index:50; display:grid; gap:10px
    }
    .float-tools a,.float-tools button{
      width:52px; height:52px; border-radius:16px; border:1px solid rgba(230,221,255,.95);
      background:#fff; box-shadow:var(--shadow); display:grid; place-items:center; color:var(--brand); cursor:pointer;
      transition:.25s; font-weight:700
    }
    .float-tools a:hover,.float-tools button:hover{transform:translateY(-2px)}
    .mobile-menu{display:none}
    .cover-note{display:flex; flex-wrap:wrap; gap:10px; margin-top:16px}
    .notice{
      padding:14px 16px; border-radius:16px; background:linear-gradient(135deg, rgba(111,60,255,.10), rgba(255,93,168,.08));
      border:1px solid rgba(156,91,255,.18); color:#3a234f; font-size:14px; line-height:1.7
    }
    .service-network{
      display:grid; grid-template-columns:repeat(3,1fr); gap:16px
    }
    .timeline{display:grid; gap:12px; list-style:none; padding:0; margin:0}
    .timeline li{padding:18px 18px 18px 22px; border-left:4px solid var(--brand)}
    .timeline strong{display:block; margin-bottom:6px}
    .timeline span{color:var(--muted); font-size:13px; line-height:1.75}
    .price-box{padding:20px}
    .price-grid{display:grid; grid-template-columns:repeat(3,1fr); gap:14px}
    .price{padding:18px; border-radius:18px; background:#fff; border:1px solid var(--line)}
    .price b{display:block; color:var(--brand); font-size:24px; margin:4px 0 10px}
    .price small{color:var(--muted)}
    .hero-badges{display:flex; flex-wrap:wrap; gap:10px; margin-top:14px}
    .hero-badges .badge{background:#fff;border-color:#eadfff}
    .ai-page-home-link{font-weight:700}
    .section-anchor{scroll-margin-top:92px}
    .trust-row{display:grid; grid-template-columns:repeat(5,1fr); gap:12px}
    .trust{padding:14px; text-align:center; border-radius:16px; background:#fff; border:1px solid var(--line); font-size:13px; color:#414758}
    @keyframes floatUp{from{opacity:0; transform:translateY(18px)} to{opacity:1; transform:none}}
    .reveal{animation:floatUp .55s ease both}
    @media (max-width: 1024px){
      .hero-grid,.grid-3,.grid-4,.gallery,.comment-grid,.article-list,.service-network,.price-grid,.steps,.footer .footer-grid,.trust-row{grid-template-columns:repeat(2,1fr)}
      .service-list{grid-template-columns:1fr}
    }
    @media (max-width: 768px){
      .menu-toggle{display:inline-flex}
      .menu{
        display:none; position:absolute; left:16px; right:16px; top:70px; flex-direction:column; align-items:flex-start;
        background:#fff; border:1px solid var(--line); border-radius:18px; padding:12px; box-shadow:var(--shadow)
      }
      .menu.open{display:flex}
      .nav{position:relative}
      .nav-actions .btn-ghost{display:none}
      .hero-grid,.grid-3,.grid-4,.gallery,.comment-grid,.article-list,.service-network,.price-grid,.steps,.footer .footer-grid,.trust-row,.form-grid,.stats,.hero-points{grid-template-columns:1fr}
      .hero-card{padding:24px}
      .hero-actions{flex-direction:column}
      .btn{width:100%}
      .float-tools{right:12px; bottom:12px}
      .float-tools a,.float-tools button{width:48px; height:48px}
    }