:root{
      --bg:#f7f4fb;
      --bg2:#fff7fb;
      --card:#ffffff;
      --text:#1f2330;
      --muted:#5b6375;
      --line:rgba(120,82,170,.16);
      --primary:#c23bff;
      --primary2:#ff4db8;
      --accent:#7b5cff;
      --shadow:0 18px 50px rgba(66,28,98,.12);
      --radius:22px;
      --radius2:16px;
      --container:1180px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:-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(194,59,255,.09), transparent 28%),
        radial-gradient(circle at top right, rgba(255,77,184,.08), transparent 22%),
        linear-gradient(180deg, #fff 0%, var(--bg) 42%, #fff 100%);
    }
    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(255,255,255,.78);
      border-bottom:1px solid rgba(122,92,180,.12);
    }
    .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 6px 20px rgba(0,0,0,.08)}
    .brand-text{min-width:0}
    .brand-text strong{display:block;font-size:18px;line-height:1.1}
    .brand-text span{display:block;font-size:12px;color:var(--muted);margin-top:3px}
    .nav-links{display:flex;align-items:center;gap:18px;flex-wrap:wrap;justify-content:flex-end}
    .nav-links a{font-size:14px;color:#3b4150;padding:8px 10px;border-radius:999px;transition:.2s ease}
    .nav-links a:hover,.nav-links a:focus{background:rgba(194,59,255,.09);color:#23172f}
    .nav-cta{display:flex;align-items:center;gap:10px}
    .btn{
      display:inline-flex;align-items:center;justify-content:center;gap:8px;
      padding:12px 18px;border-radius:14px;border:1px solid transparent;
      font-weight:700;font-size:14px;transition:.22s ease;cursor:pointer;
      box-shadow:none;
    }
    .btn-primary{color:#fff;background:linear-gradient(135deg,var(--primary),var(--primary2));box-shadow:0 14px 30px rgba(194,59,255,.28)}
    .btn-primary:hover{transform:translateY(-2px);box-shadow:0 18px 34px rgba(194,59,255,.34)}
    .btn-ghost{background:#fff;border-color:rgba(120,82,170,.18);color:#2b2940}
    .btn-ghost:hover{transform:translateY(-2px);border-color:rgba(194,59,255,.32)}
    .menu-btn{display:none}
    .hero{
      padding:32px 0 26px;
      position:relative;
      overflow:hidden;
    }
    .hero-grid{
      display:grid;grid-template-columns:1.12fr .88fr;gap:22px;align-items:stretch;
      padding:22px 0 6px;
    }
    .hero-copy,.hero-panel,.section-card,.info-card,.review-card,.price-card,.timeline-card,.faq-item,.article-card,.case-card,.compare-card,.form-card{
      background:linear-gradient(180deg,rgba(255,255,255,.95),rgba(255,255,255,.88));
      border:1px solid var(--line);
      border-radius:var(--radius);
      box-shadow:var(--shadow);
    }
    .hero-copy{padding:30px}
    .kicker{display:inline-flex;align-items:center;gap:8px;padding:7px 12px;border-radius:999px;background:rgba(194,59,255,.08);color:#7629a8;font-weight:700;font-size:13px}
    h1{margin:16px 0 14px;font-size:clamp(30px,5vw,56px);line-height:1.06;letter-spacing:-.02em}
    .lead{margin:0;color:var(--muted);font-size:16px;line-height:1.85;max-width:62ch}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px}
    .hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
    .tag{padding:8px 12px;border-radius:999px;background:#fff;border:1px solid rgba(123,92,255,.16);color:#493d66;font-size:13px}
    .hero-panel{padding:22px;position:relative;overflow:hidden}
    .hero-panel::before,.hero-panel::after{
      content:"";position:absolute;border-radius:50%;filter:blur(10px);opacity:.95;pointer-events:none
    }
    .hero-panel::before{width:170px;height:170px;background:radial-gradient(circle,rgba(255,77,184,.36),transparent 65%);top:-35px;right:-35px}
    .hero-panel::after{width:130px;height:130px;background:radial-gradient(circle,rgba(123,92,255,.28),transparent 68%);bottom:-20px;left:-20px}
    .panel-grid{display:grid;gap:14px;grid-template-columns:repeat(2,minmax(0,1fr));position:relative;z-index:1}
    .mini{
      padding:18px;border-radius:18px;background:rgba(255,255,255,.82);
      border:1px solid rgba(123,92,255,.13)
    }
    .mini strong{display:block;font-size:22px;color:#201330}
    .mini span{display:block;margin-top:4px;color:var(--muted);font-size:13px;line-height:1.55}
    .mini.full{grid-column:1/-1}
    .section{padding:16px 0}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:14px;margin-bottom:16px}
    .section-head h2{margin:0;font-size:28px;line-height:1.15}
    .section-head p{margin:0;color:var(--muted);max-width:64ch;line-height:1.75}
    .grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
    .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}
    .info-card,.service-card,.case-card,.review-card,.article-card,.price-card,.timeline-card,.compare-card,.form-card,.faq-item{padding:20px}
    .info-card h3,.service-card h3,.case-card h3,.review-card h3,.article-card h3,.price-card h3,.timeline-card h3,.compare-card h3{margin:0 0 10px;font-size:18px}
    .info-card p,.service-card p,.case-card p,.review-card p,.article-card p,.price-card p,.timeline-card p,.compare-card p{margin:0;color:var(--muted);line-height:1.8}
    .metric{font-size:30px;font-weight:800;background:linear-gradient(135deg,var(--primary),var(--accent));-webkit-background-clip:text;background-clip:text;color:transparent}
    .list{margin:14px 0 0;padding:0;list-style:none;display:grid;gap:10px}
    .list li{padding-left:18px;position:relative;color:#3b4150;line-height:1.7}
    .list li::before{content:"";position:absolute;left:0;top:.7em;width:7px;height:7px;border-radius:50%;background:linear-gradient(135deg,var(--primary),var(--primary2))}
    .service-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
    .service-card{border-top:3px solid rgba(194,59,255,.5)}
    .badge{display:inline-flex;align-items:center;gap:6px;padding:6px 10px;border-radius:999px;background:rgba(123,92,255,.09);color:#5c43a3;font-size:12px;font-weight:700}
    .media-strip{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
    .media-box{
      border-radius:20px;overflow:hidden;border:1px solid rgba(123,92,255,.14);
      background:linear-gradient(180deg,#fff,#f7f0ff)
    }
    .media-box img{width:100%;height:auto;display:block}
    .table-wrap{overflow:auto;border-radius:18px;border:1px solid rgba(120,82,170,.14)}
    table{width:100%;border-collapse:collapse;min-width:840px;background:#fff}
    th,td{padding:14px 16px;border-bottom:1px solid rgba(120,82,170,.12);text-align:left;vertical-align:top}
    th{background:#fbf7ff;color:#281d3a;font-size:14px}
    td{color:#374051;font-size:14px;line-height:1.7}
    .rating{
      display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin:8px 0 14px
    }
    .stars{color:#ffb800;font-size:20px;letter-spacing:2px}
    .accordion{display:grid;gap:12px}
    .faq-item{padding:0;overflow:hidden}
    .faq-q{
      width:100%;display:flex;justify-content:space-between;align-items:center;gap:16px;
      border:0;background:transparent;padding:18px 20px;font:inherit;color:#1f2330;text-align:left;cursor:pointer
    }
    .faq-q span{font-weight:700}
    .faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease;padding:0 20px;color:var(--muted);line-height:1.8}
    .faq-item.active .faq-a{max-height:160px;padding-bottom:18px}
    .faq-item.active .chev{transform:rotate(180deg)}
    .chev{transition:.25s ease}
    .quote{display:grid;gap:10px}
    .quote p{margin:0;color:#364152;line-height:1.8}
    .quote strong{font-size:14px;color:#23172f}
    .timeline{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
    .step{padding:18px;border-radius:20px;background:#fff;border:1px solid rgba(123,92,255,.14)}
    .step .num{font-weight:800;color:#7b5cff;font-size:18px}
    .step h3{margin:10px 0 8px;font-size:17px}
    .step p{margin:0;color:var(--muted);line-height:1.8}
    .article-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
    .article-card .meta,.case-card .meta{color:#7a688f;font-size:13px;margin-bottom:8px}
    .form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
    .field{display:grid;gap:8px}
    .field.full{grid-column:1/-1}
    label{font-size:14px;font-weight:700;color:#2b2940}
    input,select,textarea{
      width:100%;padding:13px 14px;border-radius:14px;border:1px solid rgba(123,92,255,.18);
      background:#fff;color:#1f2330;font:inherit;outline:none;transition:.2s ease
    }
    input:focus,select:focus,textarea:focus{border-color:rgba(194,59,255,.55);box-shadow:0 0 0 4px rgba(194,59,255,.08)}
    textarea{min-height:120px;resize:vertical}
    .footer{
      margin-top:18px;padding:24px 0 28px;border-top:1px solid rgba(120,82,170,.12);
      background:linear-gradient(180deg,rgba(255,255,255,.82),rgba(250,245,255,.92))
    }
    .footer-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:18px;align-items:start}
    .footer h3{margin:0 0 10px}
    .footer p,.footer a,.footer li{color:#424a59;line-height:1.8}
    .footer-links{display:flex;flex-wrap:wrap;gap:10px}
    .footer-links a{padding:8px 10px;border-radius:12px;background:#fff;border:1px solid rgba(123,92,255,.14)}
    .copyright{margin-top:16px;color:#697387;font-size:13px}
    .floating{
      position:fixed;right:16px;bottom:16px;z-index:60;display:grid;gap:10px
    }
    .float-btn{
      width:48px;height:48px;border-radius:16px;background:linear-gradient(135deg,var(--primary),var(--primary2));
      color:#fff;display:flex;align-items:center;justify-content:center;box-shadow:0 14px 30px rgba(194,59,255,.28)
    }
    .客服{
      position:fixed;left:16px;bottom:16px;z-index:60;display:grid;gap:10px
    }
    .contact-chip{
      display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:16px;background:#fff;
      border:1px solid rgba(123,92,255,.18);box-shadow:0 10px 24px rgba(66,28,98,.10)
    }
    .contact-chip img{width:48px;height:48px;object-fit:cover;border-radius:12px}
    .contact-chip span{display:block;font-size:13px;color:#374051;line-height:1.45}
    .reveal{opacity:0;transform:translateY(14px);transition:.55s ease}
    .reveal.show{opacity:1;transform:none}
    @media (max-width: 980px){
      .hero-grid,.grid-4,.grid-3,.service-grid,.timeline,.article-list,.footer-grid,.grid-2,.media-strip{grid-template-columns:1fr}
      .nav-links{display:none}
      .menu-btn{display:inline-flex}
      .nav.open .nav-links{
        display:flex;position:absolute;left:0;right:0;top:100%;
        flex-direction:column;align-items:flex-start;padding:14px 16px 18px;background:rgba(255,255,255,.98);
        border-bottom:1px solid rgba(122,92,180,.12);box-shadow:0 18px 24px rgba(66,28,98,.08)
      }
      .nav{position:relative}
      .nav-cta{display:none}
      .section-head{flex-direction:column;align-items:flex-start}
    }