:root{
      --bg:#f7f4ff;
      --bg2:#fffaf8;
      --card:#ffffff;
      --ink:#1f2430;
      --muted:#667085;
      --line:rgba(90,68,180,.14);
      --primary:#7c3aed;
      --primary2:#a855f7;
      --accent:#ff6b8b;
      --shadow:0 18px 50px rgba(92, 56, 160, .12);
      --radius:20px;
      --max:1180px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:system-ui,-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;color:var(--ink);background:
      radial-gradient(circle at 15% 10%, rgba(168,85,247,.12), transparent 22%),
      radial-gradient(circle at 85% 0%, rgba(124,58,237,.14), transparent 24%),
      linear-gradient(180deg, var(--bg) 0%, #fff 30%, #fff7fb 100%)}
    a{color:var(--primary);text-decoration:none}
    img{display:block;max-width:100%}
    .container{width:min(100% - 32px, var(--max));margin:0 auto}
    header{position:sticky;top:0;z-index:30;background:rgba(247,244,255,.82);backdrop-filter:blur(12px);border-bottom:1px solid rgba(124,58,237,.10)}
    .topbar{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 .text{display:flex;flex-direction:column;min-width:0}
    .brand strong{font-size:18px;line-height:1.1}
    .brand span{font-size:12px;color:var(--muted)}
    .nav-toggle{display:none;border:1px solid var(--line);background:#fff;border-radius:12px;padding:10px 12px;color:var(--ink)}
    nav{display:flex;align-items:center;gap:14px;flex-wrap:wrap;justify-content:flex-end}
    nav a{font-size:14px;color:var(--ink);padding:8px 10px;border-radius:999px}
    nav a:hover, nav a:focus{background:rgba(124,58,237,.08)}
    .home-link{background:linear-gradient(135deg,var(--primary),var(--primary2));color:#fff!important;padding:10px 14px!important;box-shadow:0 10px 24px rgba(124,58,237,.22)}
    main{padding:18px 0 8px}
    section{padding:34px 0}
    .hero{padding-top:18px}
    .hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:24px;align-items:stretch}
    .hero-card,.panel,.card{background:rgba(255,255,255,.88);border:1px solid rgba(124,58,237,.12);border-radius:var(--radius);box-shadow:var(--shadow)}
    .hero-card{padding:28px;position:relative;overflow:hidden}
    .hero-card:before{content:"";position:absolute;inset:auto -10% -35% auto;width:260px;height:260px;background:radial-gradient(circle, rgba(168,85,247,.18), transparent 70%);pointer-events:none}
    h1{margin:0 0 14px;font-size:clamp(30px,5vw,52px);line-height:1.08;letter-spacing:-.02em}
    .lead{font-size:16px;line-height:1.8;color:var(--muted);margin:0 0 22px;max-width:62ch}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin:0 0 18px}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:none;border-radius:14px;padding:12px 18px;font-weight:700;cursor:pointer;transition:.25s ease;white-space:nowrap}
    .btn-primary{background:linear-gradient(135deg,var(--primary),var(--primary2));color:#fff;box-shadow:0 12px 28px rgba(124,58,237,.22)}
    .btn-ghost{background:#fff;border:1px solid rgba(124,58,237,.18);color:var(--ink)}
    .btn:hover{transform:translateY(-2px)}
    .hero-metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:18px}
    .metric{padding:16px;border-radius:16px;background:linear-gradient(180deg,#fff,rgba(248,242,255,.92));border:1px solid rgba(124,58,237,.10)}
    .metric b{display:block;font-size:22px;margin-bottom:4px}
    .metric span{font-size:13px;color:var(--muted);line-height:1.5}
    .hero-side{display:grid;gap:16px}
    .side-mini{padding:22px}
    .tags{display:flex;flex-wrap:wrap;gap:10px}
    .tag{padding:9px 12px;border-radius:999px;background:#fff;border:1px solid rgba(124,58,237,.12);font-size:13px;color:#452b7a}
    .grid-3,.grid-4{display:grid;gap:18px}
    .grid-3{grid-template-columns:repeat(3,1fr)}
    .grid-4{grid-template-columns:repeat(4,1fr)}
    .card{padding:22px}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:14px;margin-bottom:18px}
    .section-head h2{margin:0;font-size:clamp(24px,3vw,34px)}
    .section-head p{margin:0;color:var(--muted);max-width:68ch;line-height:1.7}
    .icon{width:42px;height:42px;border-radius:14px;display:grid;place-items:center;background:linear-gradient(135deg,rgba(124,58,237,.12),rgba(255,107,139,.12));color:var(--primary);font-weight:800}
    .list{margin:0;padding:0;list-style:none;display:grid;gap:12px}
    .list li{padding:12px 14px;border:1px solid rgba(124,58,237,.10);border-radius:14px;background:#fff;line-height:1.65}
    .timeline{display:grid;gap:14px}
    .step{display:grid;grid-template-columns:auto 1fr;gap:12px;align-items:start;padding:16px;border:1px solid rgba(124,58,237,.10);border-radius:16px;background:#fff}
    .step .num{width:34px;height:34px;border-radius:50%;display:grid;place-items:center;background:linear-gradient(135deg,var(--primary),var(--accent));color:#fff;font-weight:800}
    .table-wrap{overflow:auto;border-radius:18px;border:1px solid rgba(124,58,237,.12);background:#fff}
    table{width:100%;border-collapse:collapse;min-width:760px}
    th,td{padding:14px 16px;text-align:left;border-bottom:1px solid rgba(124,58,237,.09);vertical-align:top}
    th{background:linear-gradient(180deg,#faf7ff,#fff);color:#2a2048}
    .rating{display:flex;align-items:center;gap:8px;color:#8a4bff;font-weight:700}
    .stars{letter-spacing:2px}
    .faq details{background:#fff;border:1px solid rgba(124,58,237,.12);border-radius:16px;padding:0 16px;box-shadow:0 8px 26px rgba(92,56,160,.06)}
    .faq summary{cursor:pointer;list-style:none;padding:16px 0;font-weight:700}
    .faq summary::-webkit-details-marker{display:none}
    .faq p{margin:0 0 16px;color:var(--muted);line-height:1.8}
    .comments{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .comment{padding:20px;border-radius:18px;background:linear-gradient(180deg,#fff,rgba(248,242,255,.92));border:1px solid rgba(124,58,237,.10)}
    .comment strong{display:block;margin-bottom:6px}
    .comment em{display:block;font-style:normal;color:#8b5cf6;font-size:13px;margin-bottom:10px}
    .case{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
    .case-item{padding:18px;border:1px solid rgba(124,58,237,.10);border-radius:18px;background:#fff}
    .article-list{display:grid;gap:12px}
    .article-list a{padding:14px 16px;border-radius:14px;background:#fff;border:1px solid rgba(124,58,237,.10);display:flex;justify-content:space-between;gap:10px;color:var(--ink)}
    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;color:#2b2540;font-weight:600}
    input,select,textarea{width:100%;border:1px solid rgba(124,58,237,.16);border-radius:14px;padding:13px 14px;font:inherit;background:#fff;color:var(--ink);outline:none}
    input:focus,select:focus,textarea:focus{border-color:rgba(124,58,237,.45);box-shadow:0 0 0 4px rgba(124,58,237,.08)}
    textarea{min-height:120px;resize:vertical}
    .form-actions{display:flex;flex-wrap:wrap;gap:12px;align-items:center}
    footer{padding:22px 0 28px;border-top:1px solid rgba(124,58,237,.10);background:linear-gradient(180deg,rgba(255,255,255,.7),rgba(247,244,255,.92));color:var(--ink)}
    footer a{color:var(--primary)}
    .footer-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:18px;align-items:start}
    .footer-links{display:flex;flex-wrap:wrap;gap:10px}
    .footer-links a{padding:8px 11px;border-radius:999px;background:#fff;border:1px solid rgba(124,58,237,.12)}
    .floating{position:fixed;right:16px;bottom:16px;z-index:40;display:grid;gap:10px}
    .float-btn{display:grid;place-items:center;width:48px;height:48px;border-radius:16px;background:linear-gradient(135deg,var(--primary),var(--accent));color:#fff;box-shadow:0 12px 28px rgba(124,58,237,.28)}
    .float-panel{position:fixed;right:16px;bottom:76px;z-index:40;width:min(320px,calc(100vw - 32px));padding:16px;border-radius:18px;background:#fff;border:1px solid rgba(124,58,237,.12);box-shadow:var(--shadow);display:none}
    .float-panel.open{display:block}
    .float-panel img{border-radius:14px;border:1px solid rgba(124,58,237,.12)}
    .reveal{opacity:0;transform:translateY(16px);transition:.6s ease}
    .reveal.visible{opacity:1;transform:none}
    .badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:10px}
    .badge{font-size:12px;padding:7px 10px;border-radius:999px;background:rgba(124,58,237,.08);color:#5b2fb3}
    .price{display:grid;gap:12px}
    .price .row{display:flex;justify-content:space-between;gap:12px;padding:12px 14px;border-radius:14px;background:#fff;border:1px solid rgba(124,58,237,.10)}
    .muted{color:var(--muted)}
    @media (max-width: 980px){
      .hero-grid,.grid-3,.grid-4,.comments,.case,.footer-grid{grid-template-columns:1fr}
      .hero-metrics{grid-template-columns:1fr}
      .section-head{align-items:start;flex-direction:column}
      nav{display:none}
      nav.open{display:flex;flex-direction:column;align-items:flex-start;padding:12px 0 18px}
      .nav-toggle{display:inline-flex}
      .topbar{flex-wrap:wrap}
      .form-grid{grid-template-columns:1fr}
    }