:root{
      --bg:#fbf7f4;
      --panel:#ffffff;
      --panel-2:#fff4f0;
      --line:#ead9d2;
      --text:#2f2220;
      --muted:#6b5a57;
      --brand:#e73f7f;
      --brand-2:#ff7a59;
      --accent:#7a4cff;
      --shadow:0 18px 40px rgba(94,54,46,.08);
      --shadow-soft:0 10px 24px rgba(94,54,46,.06);
      --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;background:
      radial-gradient(circle at top left, rgba(231,63,127,.10), transparent 28%),
      radial-gradient(circle at 80% 12%, rgba(255,122,89,.10), transparent 22%),
      linear-gradient(180deg,#fffdfb 0%, #fbf7f4 48%, #f8f1ed 100%);
      color:var(--text);line-height:1.6}
    img{display:block;max-width:100%}
    a{color:inherit;text-decoration:none}
    .container{width:min(var(--container),calc(100% - 32px));margin:0 auto}
    .topbar{position:sticky;top:0;z-index:80;background:rgba(255,250,248,.82);backdrop-filter:blur(14px);border-bottom:1px solid rgba(234,217,210,.7)}
    .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;border:1px solid var(--line);padding:4px;box-shadow:var(--shadow-soft)}
    .brand-text{min-width:0}
    .brand-text strong{display:block;font-size:1.02rem;letter-spacing:.5px}
    .brand-text span{display:block;font-size:.84rem;color:var(--muted)}
    .nav-toggle{display:none;border:1px solid var(--line);background:#fff;border-radius:14px;padding:10px 12px;color:var(--text)}
    .nav-links{display:flex;flex-wrap:wrap;justify-content:flex-end;gap:8px}
    .nav-links a{font-size:.92rem;padding:9px 12px;border-radius:999px;color:#4b3835;transition:.25s ease}
    .nav-links a:hover{background:#fff;color:var(--brand);box-shadow:0 8px 18px rgba(231,63,127,.12)}
    .home-link{background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#fff !important;box-shadow:0 10px 24px rgba(231,63,127,.18)}
    .hero{padding:32px 0 22px}
    .hero-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:22px;align-items:stretch}
    .hero-main,.hero-side,.panel{background:linear-gradient(180deg, rgba(255,255,255,.95), rgba(255,248,245,.98));border:1px solid rgba(234,217,210,.88);border-radius:var(--radius);box-shadow:var(--shadow)}
    .hero-main{padding:28px;position:relative;overflow:hidden}
    .hero-main::before,.hero-main::after{content:"";position:absolute;border-radius:50%;pointer-events:none}
    .hero-main::before{width:220px;height:220px;background:radial-gradient(circle, rgba(231,63,127,.16), transparent 68%);top:-72px;right:-60px}
    .hero-main::after{width:160px;height:160px;background:radial-gradient(circle, rgba(122,76,255,.12), transparent 68%);bottom:-70px;right:60px}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;padding:7px 12px;border-radius:999px;background:#fff1f6;color:#b31f57;font-weight:700;font-size:.86rem;border:1px solid #ffd4e2}
    h1{margin:16px 0 14px;font-size:clamp(2rem,4.6vw,3.7rem);line-height:1.08;letter-spacing:-.03em}
    .lead{max-width:58ch;font-size:1.04rem;color:var(--muted);margin:0 0 18px}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin:22px 0 18px}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 18px;border-radius:14px;border:1px solid transparent;font-weight:700;transition:.25s ease;cursor:pointer}
    .btn-primary{background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#fff;box-shadow:0 14px 28px rgba(231,63,127,.22)}
    .btn-secondary{background:#fff;border-color:var(--line);color:var(--text)}
    .btn:hover{transform:translateY(-2px)}
    .hero-metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:18px}
    .metric{background:#fff;border:1px solid var(--line);border-radius:18px;padding:16px;box-shadow:var(--shadow-soft)}
    .metric strong{display:block;font-size:1.3rem}
    .metric span{display:block;color:var(--muted);font-size:.88rem;margin-top:4px}
    .hero-side{padding:22px;display:grid;gap:14px}
    .side-badge{display:flex;justify-content:space-between;gap:10px;align-items:center;background:linear-gradient(135deg,#fff4f8,#fff7f2);border:1px solid #f4d7df;border-radius:18px;padding:16px}
    .side-badge h2{margin:0;font-size:1.06rem}
    .side-badge p{margin:4px 0 0;color:var(--muted);font-size:.92rem}
    .mini-list{display:grid;gap:10px}
    .mini-item{display:flex;gap:10px;align-items:flex-start;padding:12px 0;border-top:1px dashed #edd9d1}
    .mini-item:first-child{border-top:0;padding-top:0}
    .dot{width:10px;height:10px;border-radius:50%;margin-top:6px;background:linear-gradient(135deg,var(--brand),var(--accent))}
    .section{padding:12px 0 22px}
    .section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:16px}
    .section-head h2{margin:0;font-size:clamp(1.45rem,2.8vw,2.2rem)}
    .section-head p{margin:0;color:var(--muted);max-width:62ch}
    .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{background:var(--panel);border:1px solid var(--line);border-radius:20px;padding:18px;box-shadow:var(--shadow-soft);transition:.25s ease}
    .card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
    .chip{display:inline-flex;align-items:center;padding:6px 10px;border-radius:999px;background:#fff0f4;color:#b31f57;font-size:.82rem;font-weight:700}
    .card h3{margin:12px 0 8px;font-size:1.08rem}
    .card p,.card li{color:var(--muted)}
    .pill-wrap{display:flex;flex-wrap:wrap;gap:10px}
    .pill{padding:9px 12px;border-radius:999px;background:#fff;border:1px solid var(--line);color:#503c39;font-size:.9rem}
    .step-list{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
    .step{position:relative;padding:18px;background:linear-gradient(180deg,#fff, #fff8f6);border:1px solid var(--line);border-radius:18px}
    .step .num{display:inline-flex;width:34px;height:34px;border-radius:50%;align-items:center;justify-content:center;background:linear-gradient(135deg,var(--brand),var(--accent));color:#fff;font-weight:800}
    .step h3{margin:12px 0 8px}
    .table-wrap{overflow:auto;border-radius:20px;border:1px solid var(--line);background:#fff;box-shadow:var(--shadow-soft)}
    table{width:100%;border-collapse:collapse;min-width:760px}
    th,td{padding:14px 16px;border-bottom:1px solid #f1e4dd;text-align:left;vertical-align:top}
    th{background:#fff6f5;font-size:.92rem}
    tr:last-child td{border-bottom:0}
    .compare-hero{display:grid;grid-template-columns:.92fr 1.08fr;gap:16px;align-items:stretch}
    .rating-box{background:linear-gradient(135deg,#fff6fa,#fff2ec);border:1px solid #f5d9e0;border-radius:22px;padding:22px}
    .rating{font-size:2.2rem;font-weight:900;color:#c81f5d}
    .stars{color:#ff9c2f;font-size:1.2rem;letter-spacing:2px}
    .comment-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .commenter{display:flex;align-items:center;gap:10px;margin-bottom:12px}
    .avatar{width:44px;height:44px;border-radius:14px;background:linear-gradient(135deg,#ffb0c9,#ffcfbe);display:flex;align-items:center;justify-content:center;color:#8a183f;font-weight:800}
    .form{display:grid;gap:12px}
    .field{display:grid;gap:7px}
    label{font-weight:700;font-size:.92rem}
    input,select,textarea{width:100%;border:1px solid var(--line);border-radius:14px;padding:13px 14px;background:#fff;color:var(--text);font:inherit;outline:none;transition:.2s}
    input:focus,select:focus,textarea:focus{border-color:#ff86a9;box-shadow:0 0 0 4px rgba(231,63,127,.08)}
    textarea{min-height:120px;resize:vertical}
    .form-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
    .form-grid .full{grid-column:1/-1}
    .footer{margin-top:12px;padding:24px 0 26px;background:#faf2ee;border-top:1px solid var(--line);color:#423532}
    .footer a{color:#8c2353}
    .footer-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:18px;align-items:start}
    .foot-mini{display:grid;gap:8px}
    .tiny{font-size:.9rem;color:var(--muted)}
    .faq details{background:#fff;border:1px solid var(--line);border-radius:16px;padding:14px 16px;box-shadow:var(--shadow-soft)}
    .faq details + details{margin-top:12px}
    .faq summary{cursor:pointer;font-weight:700;list-style:none}
    .faq summary::-webkit-details-marker{display:none}
    .faq p{margin:10px 0 0;color:var(--muted)}
    .timeline{display:grid;grid-template-columns:repeat(5,1fr);gap:14px}
    .time{padding:16px;border-radius:18px;border:1px solid var(--line);background:#fff}
    .time strong{display:block;color:#b31f57}
    .article-list{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .article-list a{display:block;padding:16px;border-radius:18px;border:1px solid var(--line);background:#fff;box-shadow:var(--shadow-soft);transition:.25s}
    .article-list a:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
    .float-tools{position:fixed;right:16px;bottom:18px;z-index:90;display:grid;gap:10px}
    .float-tools a,.float-tools button{width:48px;height:48px;border-radius:16px;border:1px solid var(--line);background:#fff;box-shadow:var(--shadow-soft);display:flex;align-items:center;justify-content:center;cursor:pointer}
    .floating-kefu{position:fixed;left:16px;bottom:18px;z-index:90}
    .floating-kefu .panel{width:min(320px,calc(100vw - 32px));padding:14px;display:grid;gap:10px}
    .floating-kefu img{border-radius:14px;border:1px solid var(--line)}
    .reveal{opacity:0;transform:translateY(16px);transition:.55s ease}
    .reveal.in{opacity:1;transform:none}
    .note-tags{display:flex;flex-wrap:wrap;gap:10px}
    .tag-title{font-weight:800;margin:0 0 10px}
    .service-network{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
    .service-network .card{min-height:100%}
    .kpi-band{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
    .kpi-band .card{padding:16px}
    .mobile-only{display:none}
    @media (max-width: 980px){
      .hero-grid,.compare-hero,.footer-grid,.grid-2,.grid-3,.comment-grid,.article-list,.service-network,.kpi-band,.step-list,.timeline{grid-template-columns:1fr 1fr}
      .step-list,.timeline{overflow:auto}
      .hero{padding-top:22px}
    }
    @media (max-width: 760px){
      .nav-toggle{display:inline-flex}
      .nav-links{display:none;position:absolute;left:16px;right:16px;top:68px;background:#fff;border:1px solid var(--line);border-radius:18px;padding:10px;box-shadow:var(--shadow);flex-direction:column}
      .nav-links.open{display:flex}
      .hero-grid,.compare-hero,.footer-grid,.grid-2,.grid-3,.comment-grid,.article-list,.service-network,.kpi-band{grid-template-columns:1fr}
      .mobile-only{display:block}
      .hero-main{padding:22px}
      .hero-metrics{grid-template-columns:1fr}
      .form-grid{grid-template-columns:1fr}
      .section-head{flex-direction:column;align-items:flex-start}
      .step-list,.timeline{grid-template-columns:repeat(4, minmax(220px,1fr));overflow:auto;padding-bottom:4px}
      .nav{position:relative}
      .floating-kefu{left:12px;right:12px;bottom:76px}
      .floating-kefu .panel{width:auto}
    }