:root{
      --bg:#f6f1ea;
      --bg2:#fffaf6;
      --card:#ffffff;
      --text:#1f2430;
      --muted:#5b6475;
      --line:#e9dfd3;
      --brand:#f14f6a;
      --brand2:#ff8a3d;
      --brand3:#6b7cff;
      --shadow:0 18px 50px rgba(31,36,48,.08);
      --radius:22px;
      --radius-sm:16px;
      --container:1180px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", "Segoe UI", Arial, sans-serif;
      background:
        radial-gradient(circle at top left, rgba(241,79,106,.10), transparent 26%),
        radial-gradient(circle at top right, rgba(107,124,255,.10), transparent 22%),
        linear-gradient(180deg,var(--bg),var(--bg2) 38%,#fff 100%);
      color:var(--text);
      line-height:1.7;
    }
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%;height:auto}
    .container{width:min(var(--container), calc(100% - 32px)); margin:0 auto}
    .site-header{
      position:sticky; top:0; z-index:50;
      background:rgba(246,241,234,.82);
      backdrop-filter: blur(14px);
      border-bottom:1px solid rgba(233,223,211,.9);
    }
    .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 22px rgba(0,0,0,.06)}
    .brand-text{display:flex; flex-direction:column; min-width:0}
    .brand-text strong{font-size:18px; letter-spacing:.2px}
    .brand-text span{font-size:12px; color:var(--muted)}
    .nav-links{display:flex; flex-wrap:wrap; gap:10px 14px; align-items:center; justify-content:flex-end}
    .nav-links a{font-size:14px; color:#2b3140; padding:8px 10px; border-radius:999px}
    .nav-links a:hover{background:rgba(241,79,106,.08); color:#111}
    .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:12px 18px;
      font-weight:700; font-size:14px; cursor:pointer; transition:.25s ease;
      box-shadow:0 10px 22px rgba(0,0,0,.06);
      white-space:nowrap;
    }
    .btn-primary{background:linear-gradient(135deg,var(--brand),var(--brand2)); color:#fff}
    .btn-ghost{background:#fff; color:var(--text); border-color:var(--line)}
    .btn:hover{transform:translateY(-2px); box-shadow:0 14px 26px rgba(31,36,48,.12)}
    .menu-toggle{display:none; width:44px; height:44px; border-radius:12px; border:1px solid var(--line); background:#fff}
    .menu-toggle span{display:block; width:18px; height:2px; background:var(--text); margin:4px auto; border-radius:2px}
    main{padding-bottom:24px}
    .hero{
      position:relative;
      padding:38px 0 22px;
      overflow:hidden;
    }
    .hero::before,.hero::after{
      content:""; position:absolute; inset:auto; border-radius:50%; filter:blur(4px); pointer-events:none;
    }
    .hero::before{width:260px;height:260px;background:rgba(241,79,106,.14); right:-90px; top:10px}
    .hero::after{width:200px;height:200px;background:rgba(107,124,255,.12); left:-60px; bottom:0}
    .hero-grid{display:grid; grid-template-columns:1.2fr .8fr; gap:22px; align-items:stretch}
    .hero-copy,.hero-panel,.section-card,.info-card,.review-card,.case-card,.service-card,.faq-item,.article-card,.contact-card,.table-card,.metric,.timeline-item,.price-card{
      background:rgba(255,255,255,.8);
      border:1px solid rgba(233,223,211,.9);
      box-shadow:var(--shadow);
      border-radius:var(--radius);
    }
    .hero-copy{padding:34px}
    .eyebrow{display:inline-flex; align-items:center; gap:8px; padding:8px 14px; border-radius:999px; background:rgba(241,79,106,.08); color:#b12b42; font-weight:700; font-size:13px}
    h1{margin:16px 0 14px; font-size:clamp(32px, 4vw, 54px); line-height:1.08}
    .lead{font-size:16px; color:var(--muted); max-width:58ch; margin:0 0 20px}
    .hero-meta{display:flex; flex-wrap:wrap; gap:10px; margin:18px 0 24px}
    .chip{padding:9px 12px; border-radius:999px; background:#fff; border:1px solid var(--line); color:#384152; font-size:13px}
    .hero-actions{display:flex; flex-wrap:wrap; gap:12px; margin-top:8px}
    .hero-panel{padding:26px; display:grid; gap:14px; align-content:start; position:relative; overflow:hidden}
    .hero-panel .stat-row{display:grid; grid-template-columns:repeat(2,1fr); gap:12px}
    .mini-stat{padding:16px; border-radius:18px; background:linear-gradient(180deg,#fff, #fff7f8); border:1px solid #f2d3da}
    .mini-stat strong{display:block; font-size:22px}
    .mini-stat span{font-size:12px; color:var(--muted)}
    .panel-highlight{
      padding:18px; border-radius:18px; background:linear-gradient(135deg, rgba(241,79,106,.10), rgba(107,124,255,.08));
      border:1px solid rgba(241,79,106,.14)
    }
    .panel-highlight h3{margin:0 0 8px; font-size:18px}
    .panel-list{margin:0; padding:0 0 0 18px; color:var(--muted)}
    .section{padding:18px 0}
    .section-head{display:flex; justify-content:space-between; gap:16px; align-items:end; margin-bottom:16px}
    .section-head h2{margin:0; font-size:clamp(24px,2.6vw,34px)}
    .section-head p{margin:0; color:var(--muted); max-width:68ch}
    .grid-3{display:grid; grid-template-columns:repeat(3,1fr); gap:16px}
    .grid-2{display:grid; grid-template-columns:repeat(2,1fr); gap:16px}
    .grid-4{display:grid; grid-template-columns:repeat(4,1fr); gap:16px}
    .metric,.service-card,.case-card,.review-card,.article-card,.contact-card,.table-card,.faq-item,.price-card,.info-card,.timeline-item{padding:20px}
    .metric strong{font-size:28px; display:block}
    .metric span{color:var(--muted); font-size:14px}
    .section-card{padding:22px}
    .service-card h3,.case-card h3,.review-card h3,.article-card h3,.info-card h3,.price-card h3,.contact-card h3{margin:0 0 10px; font-size:18px}
    .service-card p,.case-card p,.review-card p,.article-card p,.info-card p,.price-card p,.contact-card p{margin:0; color:var(--muted)}
    .tag-cloud{display:flex; flex-wrap:wrap; gap:10px}
    .tag-cloud .chip{background:#fff}
    .split{display:grid; grid-template-columns:1fr 1fr; gap:16px; align-items:start}
    .step{display:flex; gap:14px; padding:18px 0; border-top:1px solid var(--line)}
    .step:first-child{border-top:0; padding-top:0}
    .step-num{
      flex:0 0 42px; height:42px; border-radius:14px; display:grid; place-items:center; font-weight:800; color:#fff;
      background:linear-gradient(135deg,var(--brand),var(--brand3));
    }
    .step h3{margin:0 0 4px; font-size:17px}
    .step p{margin:0; color:var(--muted)}
    .table-wrap{overflow:auto; border-radius:18px; border:1px solid var(--line)}
    table{width:100%; border-collapse:collapse; min-width:720px; background:#fff}
    th,td{padding:14px 16px; border-bottom:1px solid var(--line); text-align:left; vertical-align:top}
    th{background:#fff7f8; font-size:14px}
    .rating{display:inline-flex; align-items:center; gap:6px; padding:8px 12px; border-radius:999px; background:rgba(241,79,106,.08); color:#a61f37; font-weight:700}
    .faq-item summary{cursor:pointer; list-style:none; font-weight:700; font-size:16px}
    .faq-item summary::-webkit-details-marker{display:none}
    .faq-item p{margin:12px 0 0; color:var(--muted)}
    .reviews .review-card{position:relative}
    .review-card .role{font-size:13px; color:#8a5965; margin-bottom:10px}
    .review-card .stars{color:#f39c12; letter-spacing:2px; margin-bottom:10px}
    .article-card time{display:inline-block; font-size:13px; color:#8a5965; margin-bottom:10px}
    .article-card a{color:#111}
    .article-card a:hover{text-decoration:underline}
    .contact-form{
      display:grid; grid-template-columns:repeat(2,1fr); gap:14px;
    }
    .field{display:flex; flex-direction:column; gap:8px}
    .field.full{grid-column:1 / -1}
    label{font-size:14px; font-weight:700}
    input,select,textarea{
      width:100%; padding:14px 16px; border:1px solid var(--line); border-radius:14px; background:#fff; color:var(--text);
      font:inherit; outline:none; transition:.2s ease;
    }
    input:focus,select:focus,textarea:focus{border-color:rgba(241,79,106,.55); box-shadow:0 0 0 4px rgba(241,79,106,.08)}
    textarea{min-height:130px; resize:vertical}
    .footer{
      margin-top:18px; background:#1f2430; color:#e9edf5; padding:28px 0 18px;
    }
    .footer a{color:#fff}
    .footer .muted{color:#c8cfdd}
    .footer-grid{display:grid; grid-template-columns:1.1fr .9fr .9fr; gap:16px}
    .footer-card{padding:0}
    .footer-bottom{margin-top:16px; padding-top:14px; border-top:1px solid rgba(255,255,255,.12); font-size:13px; color:#c8cfdd}
    .footer-links{display:flex; flex-wrap:wrap; gap:10px 14px}
    .floating{
      position:fixed; right:16px; bottom:16px; z-index:60; display:flex; flex-direction:column; gap:10px;
    }
    .floating a,.floating button{
      width:48px; height:48px; border-radius:16px; display:grid; place-items:center; border:0; cursor:pointer;
      background:linear-gradient(135deg,var(--brand),var(--brand2)); color:#fff; box-shadow:0 14px 30px rgba(241,79,106,.26);
    }
    .floating .secondary{background:#fff; color:var(--text); border:1px solid var(--line)}
    .fade-in{opacity:0; transform:translateY(18px); transition:.7s ease}
    .fade-in.show{opacity:1; transform:none}
    .hero-copy,.hero-panel{animation:pop .8s ease both}
    @keyframes pop{from{opacity:0; transform:translateY(14px)}to{opacity:1; transform:none}}
    @media (max-width: 980px){
      .hero-grid,.grid-3,.grid-4,.split,.footer-grid{grid-template-columns:1fr}
      .nav-links{display:none; position:absolute; left:16px; right:16px; top:70px; background:#fff; padding:14px; border-radius:18px; border:1px solid var(--line); box-shadow:var(--shadow)}
      .nav-links.open{display:flex; flex-direction:column; align-items:flex-start}
      .menu-toggle{display:inline-grid; place-items:center}
      .contact-form{grid-template-columns:1fr}
    }
    @media (max-width: 640px){
      .container{width:min(var(--container), calc(100% - 24px))}
      .hero-copy,.hero-panel,.section-card,.metric,.service-card,.case-card,.review-card,.article-card,.contact-card,.table-card,.faq-item,.price-card,.info-card,.timeline-item{padding:18px}
      .nav{padding:12px 0}
      .hero{padding-top:24px}
      .hero-actions .btn{width:100%}
      .nav-actions .btn-ghost{display:none}
    }