:root{
      --bg:#f5f2ff;
      --bg-2:#ffffff;
      --panel:#fff9ff;
      --text:#1f1630;
      --muted:#685d7f;
      --line:rgba(113,73,255,.16);
      --brand:#d64cff;
      --brand-2:#7d4dff;
      --accent:#ff4fd8;
      --accent-2:#ffb3ef;
      --shadow:0 18px 48px rgba(70,26,128,.12);
      --radius:22px;
      --radius-sm:16px;
      --max:1200px;
    }
    *{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(--text);
      background:
        radial-gradient(circle at top left, rgba(214,76,255,.14), transparent 24%),
        radial-gradient(circle at 85% 10%, rgba(255,79,216,.12), transparent 20%),
        linear-gradient(180deg,#fbf8ff 0%, #f6f2ff 50%, #f8f5ff 100%);
    }
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%;height:auto}
    .container{width:min(var(--max), calc(100% - 32px)); margin:0 auto}
    .site-header{
      position:sticky;top:0;z-index:50;
      backdrop-filter:blur(18px);
      background:rgba(251,248,255,.8);
      border-bottom:1px solid rgba(113,73,255,.1);
    }
    .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 20px rgba(92,44,178,.12)}
    .brand strong{display:block;font-size:1rem;line-height:1.1}
    .brand span{display:block;font-size:.82rem;color:var(--muted)}
    .nav-links{display:flex;align-items:center;gap:10px;flex-wrap:wrap;justify-content:flex-end}
    .nav-links a{
      font-size:.92rem;color:var(--text);padding:8px 11px;border-radius:999px;
    }
    .nav-links a:hover,.nav-links a:focus-visible{background:rgba(214,76,255,.1);outline:none}
    .nav-cta{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:12px 18px;
      font-weight:700;cursor:pointer;transition:.25s ease;box-shadow:none;
    }
    .btn-primary{background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#fff;box-shadow:0 12px 26px rgba(125,77,255,.22)}
    .btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 30px rgba(125,77,255,.28)}
    .btn-ghost{background:#fff;border-color:rgba(125,77,255,.16);color:var(--text)}
    .btn-ghost:hover{transform:translateY(-2px);border-color:rgba(214,76,255,.32)}
    .menu-btn{display:none;background:#fff;border:1px solid rgba(125,77,255,.16);border-radius:12px;padding:10px 12px}
    .hero{
      padding:34px 0 24px;
    }
    .hero-grid{
      display:grid;grid-template-columns:1.2fr .8fr;gap:22px;align-items:stretch;
    }
    .hero-main,.hero-side,.card,.section-block,.compare-wrap,.faq-item,.comment,.article,.form-wrap,.timeline,.price-box{
      background:rgba(255,255,255,.85);
      border:1px solid rgba(113,73,255,.14);
      border-radius:var(--radius);
      box-shadow:var(--shadow);
    }
    .hero-main{padding:30px;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:220px;height:220px;background:radial-gradient(circle, rgba(255,79,216,.18), transparent 68%);right:-60px;top:-40px}
    .hero-main::after{width:180px;height:180px;background:radial-gradient(circle, rgba(125,77,255,.16), transparent 68%);left:-40px;bottom:-70px}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;padding:8px 12px;border-radius:999px;background:rgba(214,76,255,.08);color:#7b2cc2;font-weight:700;font-size:.9rem}
    h1{margin:14px 0 12px;font-size:clamp(2rem,4vw,3.7rem);line-height:1.08;letter-spacing:-.03em}
    .lead{margin:0;color:var(--muted);font-size:1.03rem;line-height:1.8;max-width:60ch}
    .hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:22px}
    .hero-points{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:24px}
    .mini-stat{
      padding:14px;border-radius:18px;background:linear-gradient(180deg,rgba(247,240,255,.9),rgba(255,255,255,.95));border:1px solid rgba(125,77,255,.12)
    }
    .mini-stat strong{display:block;font-size:1.16rem}
    .mini-stat span{display:block;margin-top:4px;color:var(--muted);font-size:.9rem;line-height:1.5}
    .hero-side{padding:20px;display:grid;gap:14px;align-content:start}
    .side-metric{padding:16px;border-radius:18px;background:linear-gradient(135deg,rgba(214,76,255,.09),rgba(125,77,255,.06));border:1px solid rgba(214,76,255,.14)}
    .side-metric strong{display:block;font-size:1.45rem}
    .side-metric span{color:var(--muted);font-size:.92rem}
    .site-logo-box{display:flex;align-items:center;gap:14px;padding:14px;border-radius:18px;background:#fff;border:1px solid rgba(125,77,255,.12)}
    .site-logo-box img{width:58px;height:58px;object-fit:contain}
    .site-logo-box p{margin:4px 0 0;color:var(--muted);font-size:.92rem;line-height:1.55}
    .section{padding:18px 0}
    .section-head{display:flex;justify-content:space-between;gap:14px;align-items:end;margin-bottom:16px}
    .section-head h2{margin:0;font-size:1.65rem}
    .section-head p{margin:0;color:var(--muted);line-height:1.7;max-width:60ch}
    .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{padding:18px}
    .card h3{margin:0 0 8px;font-size:1.1rem}
    .card p,.card li,.article p,.faq-item p,.comment p{color:var(--muted);line-height:1.75}
    .tag-cloud{display:flex;flex-wrap:wrap;gap:10px}
    .tag{padding:9px 12px;border-radius:999px;background:#fff;border:1px solid rgba(125,77,255,.14);font-size:.9rem}
    .workflow{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
    .step{padding:18px;border-radius:18px;background:linear-gradient(180deg,#fff,rgba(247,240,255,.92));border:1px solid rgba(125,77,255,.14)}
    .step b{display:inline-flex;width:32px;height:32px;align-items:center;justify-content:center;border-radius:10px;background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#fff;margin-bottom:10px}
    .table-wrap{overflow-x:auto}
    table{width:100%;border-collapse:separate;border-spacing:0;min-width:760px;background:#fff;border-radius:18px;overflow:hidden}
    th,td{padding:14px 12px;border-bottom:1px solid rgba(113,73,255,.12);text-align:left;vertical-align:top}
    th{background:linear-gradient(180deg,rgba(214,76,255,.08),rgba(125,77,255,.05));color:var(--text)}
    tr:last-child td{border-bottom:none}
    .ok{color:#0d8f62;font-weight:700}
    .bad{color:#a34b60}
    .highlight{background:rgba(214,76,255,.08);font-weight:700}
    .compare-hero{display:grid;grid-template-columns:.9fr 1.1fr;gap:16px;align-items:start}
    .rating-box{padding:22px;border-radius:20px;background:linear-gradient(135deg,rgba(214,76,255,.12),rgba(125,77,255,.08));border:1px solid rgba(214,76,255,.16)}
    .rating{font-size:2.6rem;font-weight:900;line-height:1}
    .stars{color:#ff6ccf;font-size:1.1rem;letter-spacing:2px}
    .faq-list{display:grid;gap:12px}
    .faq-item{overflow:hidden}
    .faq-q{
      width:100%;text-align:left;background:none;border:0;padding:18px 18px;display:flex;justify-content:space-between;align-items:center;gap:14px;font-size:1rem;font-weight:700;color:var(--text);cursor:pointer
    }
    .faq-q span{flex:1}
    .faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease;padding:0 18px}
    .faq-item.open .faq-a{padding-bottom:18px}
    .faq-item.open .faq-q .icon{transform:rotate(45deg)}
    .icon{transition:transform .25s ease;color:var(--brand)}
    .comments{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .comment{padding:18px}
    .comment .role{display:inline-block;margin-bottom:10px;padding:7px 10px;border-radius:999px;background:rgba(214,76,255,.08);color:#7b2cc2;font-size:.84rem;font-weight:700}
    .articles{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .article{padding:18px}
    .article a{color:#5b25c9;font-weight:700}
    .form-wrap{padding:20px}
    .form-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
    .field{display:grid;gap:8px}
    .field.full{grid-column:1 / -1}
    input,select,textarea{
      width:100%;border:1px solid rgba(125,77,255,.18);background:#fff;border-radius:14px;padding:13px 14px;font:inherit;color:var(--text);outline:none
    }
    textarea{min-height:120px;resize:vertical}
    input:focus,select:focus,textarea:focus{border-color:rgba(214,76,255,.45);box-shadow:0 0 0 4px rgba(214,76,255,.08)}
    .footer{
      margin-top:26px;background:#140c25;color:#efe9ff;border-top:1px solid rgba(255,255,255,.1)
    }
    .footer a{color:#ffd6fb}
    .footer .container{padding:28px 0}
    .footer-grid{display:grid;grid-template-columns:1.1fr .9fr .9fr;gap:18px;align-items:start}
    .footer small,.footer p,.footer li{color:#d7cdea;line-height:1.8}
    .foot-links{display:flex;flex-wrap:wrap;gap:10px}
    .foot-links a{padding:8px 11px;border-radius:999px;background:rgba(255,255,255,.06)}
    .floating{
      position:fixed;right:16px;bottom:16px;z-index:60;display:grid;gap:10px
    }
    .float-btn{
      display:inline-flex;align-items:center;justify-content:center;padding:12px 14px;border-radius:999px;background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#fff;box-shadow:0 14px 30px rgba(125,77,255,.25)
    }
    .backtop{background:#fff;color:var(--text);border:1px solid rgba(125,77,255,.16)}
    .wechat-card{
      position:fixed;right:16px;bottom:126px;width:220px;z-index:59;background:#fff;border:1px solid rgba(125,77,255,.14);border-radius:18px;box-shadow:var(--shadow);padding:14px;display:none
    }
    .wechat-card img{width:100%;border-radius:14px}
    .reveal{opacity:0;transform:translateY(16px);transition:.55s ease}
    .reveal.show{opacity:1;transform:none}
    .muted{color:var(--muted)}
    .pill{display:inline-flex;padding:7px 10px;border-radius:999px;background:rgba(214,76,255,.08);color:#7b2cc2;font-weight:700;font-size:.86rem}
    .section-block{padding:20px}
    .service-links{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
    .service-links a{padding:14px;border-radius:16px;background:#fff;border:1px solid rgba(125,77,255,.12);display:block}
    .service-links a:hover{transform:translateY(-2px)}
    .timeline{padding:20px}
    .timeline-list{display:grid;gap:14px}
    .timeline-item{display:grid;grid-template-columns:84px 1fr;gap:14px;align-items:start;padding:14px;border-radius:16px;background:#fff;border:1px solid rgba(125,77,255,.12)}
    .timeline-item b{color:#7b2cc2}
    .price-box{padding:20px}
    .price-row{display:flex;justify-content:space-between;gap:14px;padding:12px 0;border-bottom:1px dashed rgba(125,77,255,.15)}
    .price-row:last-child{border-bottom:0}
    .compare-wrap{padding:20px}
    .kbd{display:inline-flex;padding:4px 8px;border:1px solid rgba(125,77,255,.18);border-radius:8px;background:#fff;font-size:.85rem}
    .mobile-only{display:none}
    @media (max-width: 1024px){
      .hero-grid,.compare-hero,.grid-3,.grid-2,.comments,.articles,.footer-grid,.workflow,.service-links{grid-template-columns:1fr 1fr}
      .service-links{grid-template-columns:1fr 1fr}
    }
    @media (max-width: 820px){
      .nav-links,.nav-cta{display:none}
      .menu-btn{display:inline-flex}
      .mobile-only{display:block}
      .hero-grid,.compare-hero,.grid-3,.grid-2,.comments,.articles,.footer-grid,.workflow,.service-links,.form-grid{grid-template-columns:1fr}
      .hero-points{grid-template-columns:1fr}
      .section-head{flex-direction:column;align-items:start}
      .menu-panel{
        display:none; margin-top:10px; padding:10px; border-radius:18px; background:#fff; border:1px solid rgba(125,77,255,.14); box-shadow:var(--shadow)
      }
      .menu-panel.open{display:grid; gap:8px}
      .menu-panel a{padding:10px 12px;border-radius:12px;background:rgba(214,76,255,.06)}
      .floating{right:12px;bottom:12px}
      .wechat-card{right:12px;bottom:118px;width:200px}
    }