:root{
      --bg:#f7f8fc;
      --panel:#ffffff;
      --panel-2:#f2f5ff;
      --text:#1f2430;
      --muted:#5f687a;
      --line:#dfe5f1;
      --brand:#e83f7a;
      --brand-2:#5a67ff;
      --brand-3:#0fb7a7;
      --warn:#ff9f43;
      --shadow:0 18px 40px rgba(29, 44, 78, .08);
      --shadow-soft:0 10px 24px rgba(29, 44, 78, .06);
      --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",Segoe UI,Roboto,Helvetica,Arial,sans-serif;
      background:
        radial-gradient(circle at top left, rgba(90,103,255,.12), transparent 30%),
        radial-gradient(circle at top right, rgba(232,63,122,.10), transparent 24%),
        linear-gradient(180deg,#fbfcff 0%, #f6f8fe 50%, #f7f8fc 100%);
      color:var(--text);
      line-height:1.7;
      overflow-x:hidden;
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    .container{max-width:var(--container);margin:0 auto;padding:0 20px}
    .site-header{
      position:sticky;top:0;z-index:50;
      backdrop-filter:blur(14px);
      background:rgba(247,248,252,.82);
      border-bottom:1px solid rgba(223,229,241,.8);
    }
    .header-inner{display:flex;align-items:center;justify-content:space-between;gap:18px;min-height:76px}
    .brand{display:flex;align-items:center;gap:12px;min-width:0}
    .brand img{width:42px;height:42px;object-fit:contain}
    .brand strong{display:block;font-size:18px;line-height:1.1}
    .brand span{display:block;font-size:12px;color:var(--muted)}
    .nav-toggle{display:none;border:1px solid var(--line);background:#fff;border-radius:14px;padding:10px 12px;color:var(--text)}
    .nav{display:flex;align-items:center;gap:16px;flex-wrap:wrap;justify-content:flex-end}
    .nav a{font-size:14px;color:var(--muted);padding:9px 10px;border-radius:999px;transition:.2s ease}
    .nav a:hover,.nav a.active{color:var(--text);background:rgba(90,103,255,.10)}
    .header-cta{display:flex;align-items:center;gap:10px}
    .btn{
      display:inline-flex;align-items:center;justify-content:center;gap:8px;
      border:0;cursor:pointer;font-weight:700;border-radius:999px;
      padding:12px 18px;transition:.25s ease;white-space:nowrap;
    }
    .btn-primary{background:linear-gradient(135deg,var(--brand) 0%, #ff6b8a 45%, var(--brand-2) 100%);color:#fff;box-shadow:0 14px 26px rgba(232,63,122,.20)}
    .btn-primary:hover{transform:translateY(-2px);box-shadow:0 18px 32px rgba(232,63,122,.26)}
    .btn-light{background:#fff;color:var(--text);border:1px solid var(--line)}
    .btn-light:hover{transform:translateY(-2px);box-shadow:var(--shadow-soft)}
    .hero{
      position:relative;overflow:hidden;
      padding:54px 0 28px;
    }
    .hero::before,.hero::after{
      content:"";position:absolute;inset:auto;border-radius:50%;pointer-events:none;filter:blur(2px)
    }
    .hero::before{width:360px;height:360px;right:-120px;top:-70px;background:radial-gradient(circle, rgba(232,63,122,.16), transparent 65%)}
    .hero::after{width:300px;height:300px;left:-120px;bottom:-120px;background:radial-gradient(circle, rgba(90,103,255,.14), transparent 65%)}
    .hero-grid{display:grid;grid-template-columns:1.22fr .78fr;gap:26px;align-items:stretch}
    .hero-main,.hero-side,.card,.panel,.review,.faq-item,.form-wrap,.price-box,.case-item,.step,.stat,.compare-card,.article{
      background:linear-gradient(180deg, rgba(255,255,255,.98), rgba(250,251,255,.96));
      border:1px solid rgba(223,229,241,.9);
      box-shadow:var(--shadow-soft);
      border-radius:var(--radius);
    }
    .hero-main{padding:30px}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;color:#7b2dbd;background:rgba(90,103,255,.10);border:1px solid rgba(90,103,255,.14);border-radius:999px;padding:7px 12px;font-size:13px;font-weight:700}
    h1{margin:14px 0 14px;font-size:clamp(34px,5vw,54px);line-height:1.08;letter-spacing:-.03em}
    .hero p{margin:0;color:var(--muted);font-size:16px;max-width:62ch}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}
    .hero-points{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:24px}
    .point{
      padding:14px;border-radius:18px;background:linear-gradient(180deg,#f8faff,#eef2ff);
      border:1px solid rgba(223,229,241,.95)
    }
    .point b{display:block;font-size:18px;color:var(--text)}
    .point span{display:block;font-size:12px;color:var(--muted);margin-top:4px}
    .hero-side{padding:24px;display:grid;gap:14px;align-content:start}
    .hero-side .stat{padding:16px}
    .stat-top{display:flex;align-items:flex-start;justify-content:space-between;gap:12px}
    .stat strong{font-size:28px;line-height:1;color:var(--text)}
    .stat p{margin:10px 0 0;color:var(--muted);font-size:13px}
    .section{padding:24px 0 8px}
    .section h2{margin:0 0 14px;font-size:clamp(24px,3vw,36px);line-height:1.15}
    .section-lead{margin:0 0 20px;color:var(--muted);max-width:72ch}
    .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:20px}
    .card h3,.panel h3,.price-box h3,.compare-card h3{margin:0 0 10px;font-size:20px}
    .card p,.panel p,.article p,.review p,.case-item p,.price-box p{margin:0;color:var(--muted)}
    .tag-cloud{display:flex;flex-wrap:wrap;gap:10px}
    .tag{padding:9px 12px;border-radius:999px;background:#fff;border:1px solid var(--line);color:#344055;font-size:13px}
    .split{
      display:grid;grid-template-columns:1fr 1fr;gap:16px;align-items:start
    }
    .panel{padding:22px}
    .bullet-list{padding:0;margin:14px 0 0;list-style:none;display:grid;gap:10px}
    .bullet-list li{display:flex;gap:10px;align-items:flex-start;color:var(--muted)}
    .bullet-list li::before{content:"";width:10px;height:10px;border-radius:50%;margin-top:8px;background:linear-gradient(135deg,var(--brand),var(--brand-2))}
    .table-wrap{overflow:auto;border-radius:18px;border:1px solid var(--line);background:#fff}
    table{width:100%;border-collapse:collapse;min-width:760px;background:#fff}
    th,td{padding:14px 16px;text-align:left;border-bottom:1px solid #edf1f7;font-size:14px;vertical-align:top}
    th{background:#f8faff;color:#223049}
    .badge{display:inline-flex;align-items:center;padding:6px 10px;border-radius:999px;font-size:12px;font-weight:700}
    .badge.hot{background:rgba(232,63,122,.10);color:#bc1f55}
    .badge.cool{background:rgba(90,103,255,.10);color:#3f4fd0}
    .steps{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
    .step{padding:18px;position:relative}
    .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(--brand-2));color:#fff;font-weight:800;margin-bottom:12px}
    .reviews{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .review{padding:20px}
    .review .who{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-bottom:10px}
    .stars{color:#ffb400;letter-spacing:2px}
    .case-list,.article-list{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .case-item,.article{padding:20px}
    .case-item h3,.article h3{margin:0 0 10px}
    .price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .price-box{padding:22px;border-top:4px solid var(--brand-2)}
    .price-box:nth-child(2){border-top-color:var(--brand)}
    .price-box:nth-child(3){border-top-color:var(--brand-3)}
    .price{font-size:32px;font-weight:900;margin:8px 0 4px}
    .form-wrap{padding:22px}
    form{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
    .field{display:grid;gap:8px}
    .field.full{grid-column:1/-1}
    label{font-size:14px;font-weight:700;color:#2b3447}
    input,select,textarea{
      width:100%;border:1px solid var(--line);background:#fff;color:var(--text);
      border-radius:14px;padding:13px 14px;font:inherit;outline:none;transition:.2s ease
    }
    input:focus,select:focus,textarea:focus{border-color:rgba(90,103,255,.55);box-shadow:0 0 0 4px rgba(90,103,255,.10)}
    textarea{min-height:120px;resize:vertical}
    .form-actions{display:flex;flex-wrap:wrap;gap:12px;align-items:center}
    .help-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:16px}
    .faq{display:grid;gap:12px}
    .faq-item{padding:0;overflow:hidden}
    .faq-q{
      width:100%;display:flex;align-items:center;justify-content:space-between;gap:14px;
      background:transparent;border:0;color:var(--text);padding:18px 20px;font:inherit;font-weight:800;cursor:pointer;text-align:left
    }
    .faq-a{max-height:0;overflow:hidden;padding:0 20px;color:var(--muted);transition:max-height .28s ease,padding .28s ease}
    .faq-item.open .faq-a{max-height:180px;padding:0 20px 18px}
    .faq-icon{width:28px;height:28px;border-radius:50%;background:rgba(90,103,255,.10);display:inline-flex;align-items:center;justify-content:center;color:#3f4fd0;font-size:18px;flex:0 0 auto}
    .footer{
      margin-top:24px;padding:26px 0 34px;background:#eef2fb;color:#243047;border-top:1px solid #d7deed
    }
    .footer a{color:#243047}
    .footer-grid{display:grid;grid-template-columns:1.1fr .9fr .9fr;gap:16px;align-items:start}
    .footer small{color:#59657a}
    .mini-links{display:flex;flex-wrap:wrap;gap:10px}
    .mini-links a{padding:8px 10px;border-radius:999px;background:#fff;border:1px solid var(--line);font-size:13px}
    .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;
      width:52px;height:52px;border-radius:50%;background:linear-gradient(135deg,var(--brand),var(--brand-2));
      color:#fff;box-shadow:0 16px 30px rgba(90,103,255,.24)
    }
    .float-panel{
      position:absolute;right:60px;bottom:0;width:280px;background:#fff;border:1px solid var(--line);
      border-radius:20px;box-shadow:var(--shadow);padding:16px;display:none
    }
    .float-panel.open{display:block}
    .float-panel img{border-radius:14px;border:1px solid var(--line)}
    .reveal{opacity:0;transform:translateY(16px);transition:.6s ease}
    .reveal.visible{opacity:1;transform:none}
    .subtle{color:var(--muted)}
    .divider{height:1px;background:linear-gradient(90deg, transparent, rgba(223,229,241,1), transparent);margin:18px 0}
    .service-net{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
    .net-item{padding:16px;border-radius:18px;background:#fff;border:1px solid var(--line)}
    .net-item b{display:block;margin-bottom:6px}
    .sticky-home{display:inline-flex;align-items:center;gap:8px}
    .top-strip{padding:10px 0;background:linear-gradient(90deg, rgba(232,63,122,.08), rgba(90,103,255,.08));border-bottom:1px solid rgba(223,229,241,.85)}
    .top-strip .container{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;align-items:center;font-size:13px;color:var(--muted)}
    .top-strip .left,.top-strip .right{display:flex;gap:12px;flex-wrap:wrap;align-items:center}
    .top-strip a{color:#36435a;font-weight:700}
    @media (max-width: 1080px){
      .hero-grid,.split,.help-grid,.footer-grid{grid-template-columns:1fr}
      .grid-3,.reviews,.case-list,.article-list,.price-grid,.service-net,.steps{grid-template-columns:repeat(2,1fr)}
      .hero-points{grid-template-columns:1fr}
    }
    @media (max-width: 780px){
      .header-inner{min-height:68px}
      .nav-toggle{display:inline-flex}
      .nav{
        display:none;position:absolute;left:20px;right:20px;top:78px;padding:12px;background:#fff;border:1px solid var(--line);
        border-radius:18px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch;gap:4px
      }
      .nav.open{display:flex}
      .header-cta{display:none}
      .grid-3,.reviews,.case-list,.article-list,.price-grid,.service-net,.steps{grid-template-columns:1fr}
      form{grid-template-columns:1fr}
      .hero{padding-top:28px}
      .hero-main,.hero-side,.card,.panel,.review,.faq-item,.form-wrap,.price-box,.case-item,.step,.stat,.compare-card,.article{border-radius:18px}
      .floating{right:12px;bottom:12px}
      .float-panel{right:58px;width:min(280px,calc(100vw - 92px))}
    }