:root{
      --bg:#f6f2ee;
      --bg2:#fff9f2;
      --card:#ffffff;
      --text:#1f2733;
      --muted:#5f6877;
      --line:#e7dfd5;
      --primary:#ff4f73;
      --primary2:#ff8a3d;
      --accent:#5b6cff;
      --teal:#14b8a6;
      --shadow:0 14px 40px rgba(25,30,50,.10);
      --shadow2:0 10px 24px rgba(255,79,115,.12);
      --radius:22px;
      --radius2:16px;
      --container:1200px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",Segoe UI,Roboto,Helvetica,Arial,sans-serif;
      color:var(--text);
      background:
        radial-gradient(circle at top left, rgba(255,79,115,.10), transparent 24%),
        radial-gradient(circle at top right, rgba(91,108,255,.10), transparent 28%),
        linear-gradient(180deg, var(--bg2), var(--bg) 44%, #f8f6f2 100%);
      line-height:1.7;
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    .container{width:min(var(--container), calc(100% - 32px)); margin:0 auto}
    .site-header{
      position:sticky; top:0; z-index:1000;
      backdrop-filter:saturate(180%) blur(14px);
      background:rgba(255,250,246,.82);
      border-bottom:1px solid rgba(231,223,213,.78);
    }
    .header-inner{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:44px;height:44px;object-fit:contain;border-radius:12px;background:#fff;box-shadow:0 6px 16px rgba(0,0,0,.06)}
    .brand-text{display:flex; flex-direction:column; min-width:0}
    .brand-text strong{font-size:16px; letter-spacing:.4px}
    .brand-text span{font-size:12px; color:var(--muted); white-space:nowrap; overflow:hidden; text-overflow:ellipsis}
    .nav-toggle{display:none; border:1px solid var(--line); background:#fff; border-radius:12px; width:44px;height:44px; align-items:center; justify-content:center; cursor:pointer}
    .nav-toggle span{display:block; width:18px; height:2px; background:#243042; position:relative}
    .nav-toggle span:before,.nav-toggle span:after{content:""; position:absolute; left:0; width:18px; height:2px; background:#243042}
    .nav-toggle span:before{top:-6px}.nav-toggle span:after{top:6px}
    .nav-wrap{display:flex; align-items:center; gap:18px}
    .nav{display:flex; flex-wrap:wrap; gap:10px 14px; align-items:center; justify-content:flex-end}
    .nav a{font-size:14px; color:#304055; padding:8px 10px; border-radius:999px; transition:.2s}
    .nav a:hover,.nav a:focus{background:rgba(255,79,115,.10); color:#cc1d4a}
    .header-cta{display:flex; gap:10px; align-items:center}
    .btn{
      display:inline-flex; align-items:center; justify-content:center; gap:8px;
      border:1px solid transparent; border-radius:14px; padding:12px 16px;
      font-weight:700; cursor:pointer; transition:transform .2s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease;
      white-space:nowrap;
    }
    .btn:hover{transform:translateY(-1px)}
    .btn-primary{background:linear-gradient(135deg,var(--primary),var(--primary2)); color:#fff; box-shadow:var(--shadow2)}
    .btn-ghost{background:#fff; border-color:var(--line); color:#263244}
    .hero{
      padding:36px 0 22px;
    }
    .hero-grid{
      display:grid; grid-template-columns:1.15fr .85fr; gap:22px; align-items:stretch;
    }
    .hero-card, .glass-card, .panel{
      background:rgba(255,255,255,.84);
      border:1px solid rgba(231,223,213,.92);
      border-radius:var(--radius);
      box-shadow:var(--shadow);
    }
    .hero-card{padding:32px; position:relative; overflow:hidden}
    .hero-card:before{
      content:""; position:absolute; inset:auto -90px -80px auto; width:240px; height:240px; border-radius:50%;
      background:radial-gradient(circle, rgba(255,79,115,.18), transparent 65%);
      pointer-events:none;
    }
    .eyebrow{display:inline-flex; align-items:center; gap:8px; color:#b93255; background:rgba(255,79,115,.10); border:1px solid rgba(255,79,115,.14); padding:7px 12px; border-radius:999px; font-size:13px; font-weight:700}
    h1{margin:16px 0 14px; font-size:clamp(30px, 4.2vw, 54px); line-height:1.08; letter-spacing:-.8px}
    .hero p{margin:0; color:var(--muted); font-size:16px; max-width:56ch}
    .hero-actions{display:flex; flex-wrap:wrap; gap:12px; margin-top:24px}
    .hero-meta{display:flex; flex-wrap:wrap; gap:10px; margin-top:22px}
    .chip{
      display:inline-flex; align-items:center; gap:8px;
      padding:9px 12px; border-radius:999px; background:#fff; border:1px solid var(--line);
      color:#324055; font-size:13px;
    }
    .hero-side{display:grid; gap:16px}
    .stat-grid{display:grid; grid-template-columns:repeat(2,1fr); gap:16px}
    .stat{padding:18px; border-radius:20px; background:linear-gradient(180deg,#fff, #fff8f3); border:1px solid var(--line); box-shadow:0 10px 24px rgba(17,24,39,.06)}
    .stat strong{display:block; font-size:28px; line-height:1; margin-bottom:8px; color:#182234}
    .stat span{font-size:13px; color:var(--muted)}
    .hero-note{padding:20px}
    .hero-note h2{font-size:18px; margin:0 0 10px}
    .hero-note ul{margin:0; padding:0; list-style:none; display:grid; gap:10px}
    .hero-note li{display:flex; gap:10px; align-items:flex-start; color:#364457; font-size:14px}
    .dot{width:9px;height:9px;border-radius:50%; background:linear-gradient(135deg,var(--primary),var(--accent)); margin-top:8px; flex:none}
    main{padding-bottom:10px}
    section{padding:22px 0}
    .section-head{display:flex; align-items:end; justify-content:space-between; gap:16px; margin-bottom:16px}
    .section-head h2{margin:0; font-size:clamp(22px, 2.5vw, 34px); line-height:1.15}
    .section-head p{margin:0; color:var(--muted); max-width:62ch}
    .grid-3{display:grid; grid-template-columns:repeat(3,1fr); gap:16px}
    .grid-4{display:grid; grid-template-columns:repeat(4,1fr); gap:16px}
    .card{background:rgba(255,255,255,.9); border:1px solid rgba(231,223,213,.92); border-radius:var(--radius2); padding:20px; box-shadow:0 10px 26px rgba(18,24,40,.06); transition:transform .22s ease, box-shadow .22s ease}
    .card:hover{transform:translateY(-3px); box-shadow:0 16px 34px rgba(18,24,40,.10)}
    .card h3{margin:0 0 10px; font-size:18px}
    .card p{margin:0; color:var(--muted)}
    .tag-cloud{display:flex; flex-wrap:wrap; gap:10px}
    .tag{padding:9px 12px; background:#fff; border:1px solid var(--line); border-radius:999px; font-size:13px; color:#314055}
    .split{display:grid; grid-template-columns:1fr 1fr; gap:16px; align-items:start}
    .list{display:grid; gap:12px; margin:0; padding:0; list-style:none}
    .list li{display:flex; gap:12px; align-items:flex-start; padding:12px 0; border-bottom:1px dashed #eadfd2}
    .list li:last-child{border-bottom:0}
    .badge{display:inline-flex; align-items:center; gap:6px; font-size:12px; padding:6px 10px; border-radius:999px; background:rgba(91,108,255,.09); color:#4253d8; font-weight:700}
    .steps{display:grid; grid-template-columns:repeat(4,1fr); gap:16px}
    .step{
      padding:18px; background:linear-gradient(180deg,#fff, #fff7f1); border:1px solid var(--line); border-radius:20px; position:relative;
    }
    .step .num{width:34px;height:34px;border-radius:12px; background:linear-gradient(135deg,var(--primary),var(--accent)); color:#fff; display:grid; place-items:center; font-weight:800; margin-bottom:12px}
    .step h3{margin:0 0 8px; font-size:17px}
    .step p{margin:0; color:var(--muted); font-size:14px}
    .table-wrap{overflow:auto; border-radius:20px; border:1px solid var(--line); background:#fff}
    table{width:100%; border-collapse:collapse; min-width:820px}
    th,td{padding:14px 16px; border-bottom:1px solid #efe6db; text-align:left; vertical-align:top}
    th{background:#fff8f4; font-size:14px}
    td{font-size:14px; color:#314055}
    .compare-spot{background:linear-gradient(135deg, rgba(255,79,115,.10), rgba(91,108,255,.08)); border:1px solid rgba(255,79,115,.16); border-radius:18px; padding:18px}
    .rating{display:flex; align-items:center; gap:12px; flex-wrap:wrap}
    .stars{color:#ff9a1f; letter-spacing:2px; font-size:18px}
    .accordion{display:grid; gap:12px}
    details{background:#fff; border:1px solid var(--line); border-radius:18px; box-shadow:0 8px 20px rgba(16,24,40,.05); overflow:hidden}
    summary{list-style:none; cursor:pointer; padding:16px 18px; font-weight:700; color:#233041; display:flex; align-items:center; justify-content:space-between; gap:14px}
    summary::-webkit-details-marker{display:none}
    summary:after{content:"+"; font-size:20px; color:#ff4f73}
    details[open] summary:after{content:"−"}
    details .answer{padding:0 18px 18px; color:var(--muted)}
    .reviews{display:grid; grid-template-columns:repeat(3,1fr); gap:16px}
    .review{padding:18px; border-radius:20px; background:#fff; border:1px solid var(--line)}
    .review .who{display:flex; align-items:center; justify-content:space-between; gap:8px; margin-bottom:10px}
    .review strong{font-size:15px}
    .review p{margin:0; color:var(--muted)}
    .timeline{display:grid; gap:12px}
    .time-item{display:grid; grid-template-columns:110px 1fr; gap:16px; align-items:start; padding:14px 0; border-bottom:1px dashed #eadfd2}
    .time-item:last-child{border-bottom:0}
    .time-item b{color:#b93255}
    .article-list{display:grid; gap:12px}
    .article-item{display:flex; justify-content:space-between; gap:16px; padding:14px 16px; border:1px solid var(--line); background:#fff; border-radius:16px}
    .article-item span{color:var(--muted); font-size:13px}
    .form-grid{display:grid; grid-template-columns:1fr 1fr; gap:14px}
    .field{display:flex; flex-direction:column; gap:8px}
    label{font-size:14px; font-weight:700; color:#2a3443}
    input,select,textarea{
      width:100%; border:1px solid #d9cfc2; border-radius:14px; padding:13px 14px; font:inherit; color:#243042; background:#fff;
      outline:none; transition:border-color .2s ease, box-shadow .2s ease;
    }
    input:focus,select:focus,textarea:focus{border-color:#ff4f73; box-shadow:0 0 0 4px rgba(255,79,115,.10)}
    textarea{min-height:120px; resize:vertical}
    .full{grid-column:1/-1}
    .contact-box{display:grid; grid-template-columns:1fr 280px; gap:16px; align-items:start}
    .qr{
      padding:18px; background:linear-gradient(180deg,#fff, #fff7f1); border:1px solid var(--line); border-radius:20px;
      display:grid; gap:12px; justify-items:center; text-align:center;
    }
    .qr img{width:180px; aspect-ratio:1/1; object-fit:cover; border-radius:16px; border:1px solid var(--line)}
    .footer{
      padding:24px 0 30px;
      background:#121a24;
      color:#dbe4ef;
      margin-top:8px;
    }
    .footer .container{display:grid; gap:16px}
    .footer-top{display:grid; grid-template-columns:1.2fr .8fr; gap:16px; align-items:start}
    .footer a{color:#ffffff}
    .footer .muted{color:#b4c0ce}
    .footer-links{display:flex; flex-wrap:wrap; gap:10px}
    .footer-links a{padding:8px 12px; border-radius:999px; background:rgba(255,255,255,.08)}
    .copyright{padding-top:14px; border-top:1px solid rgba(255,255,255,.12); font-size:13px; color:#b4c0ce}
    .floating{
      position:fixed; right:16px; bottom:16px; z-index:1200; display:grid; gap:10px;
    }
    .float-btn{
      width:54px; height:54px; border-radius:18px; display:grid; place-items:center; box-shadow:0 12px 28px rgba(0,0,0,.16);
      background:linear-gradient(135deg,var(--primary),var(--primary2)); color:#fff; border:0; cursor:pointer;
    }
    .float-btn.secondary{background:#fff; color:#243042; border:1px solid var(--line)}
    .backtop{opacity:0; transform:translateY(8px); pointer-events:none; transition:.2s}
    .backtop.show{opacity:1; transform:translateY(0); pointer-events:auto}
    .floating-panel{
      position:fixed; right:16px; bottom:84px; width:min(92vw,340px); background:#fff; border:1px solid var(--line); border-radius:22px; box-shadow:var(--shadow); padding:16px; z-index:1199; display:none;
    }
    .floating-panel.show{display:block}
    .floating-panel h3{margin:0 0 8px; font-size:16px}
    .floating-panel p{margin:0 0 12px; color:var(--muted); font-size:14px}
    .mini-links{display:grid; gap:8px}
    .mini-links a{padding:10px 12px; border-radius:12px; background:#f8f5f1; color:#243042}
    .scroll-reveal{opacity:0; transform:translateY(18px); transition:opacity .6s ease, transform .6s ease}
    .scroll-reveal.visible{opacity:1; transform:translateY(0)}
    .banner-grid{display:grid; grid-template-columns:repeat(2,1fr); gap:16px}
    .banner-grid img,.square-grid img{border-radius:18px; border:1px solid var(--line); box-shadow:0 10px 24px rgba(0,0,0,.06); width:100%; height:auto}
    .square-grid{display:grid; grid-template-columns:repeat(3,1fr); gap:16px}
    .toc{
      display:flex; flex-wrap:wrap; gap:10px;
      background:rgba(255,255,255,.72); border:1px solid rgba(231,223,213,.9); border-radius:22px; padding:14px;
    }
    .toc a{padding:8px 10px; border-radius:999px; background:#fff; border:1px solid var(--line); font-size:13px; color:#334154}
    @media (max-width: 1024px){
      .hero-grid,.split,.contact-box,.footer-top,.grid-4,.grid-3,.reviews,.steps{grid-template-columns:1fr 1fr}
      .grid-4,.steps{grid-template-columns:repeat(2,1fr)}
      .reviews{grid-template-columns:1fr 1fr}
      .contact-box,.footer-top,.split{grid-template-columns:1fr}
    }
    @media (max-width: 760px){
      .nav-toggle{display:inline-flex}
      .nav-wrap{
        position:absolute; left:16px; right:16px; top:72px; padding:14px;
        background:#fff; border:1px solid var(--line); border-radius:20px; box-shadow:var(--shadow);
        flex-direction:column; align-items:stretch; display:none;
      }
      .nav-wrap.show{display:flex}
      .nav{justify-content:flex-start}
      .header-cta{flex-direction:column; align-items:stretch}
      .hero{padding-top:22px}
      .hero-card{padding:24px}
      .hero-actions,.hero-meta{gap:10px}
      .stat-grid,.grid-4,.grid-3,.reviews,.steps,.square-grid,.banner-grid,.form-grid{grid-template-columns:1fr}
      .section-head{flex-direction:column; align-items:flex-start}
      .time-item{grid-template-columns:1fr}
    }