:root{
      --bg:#f6f7fb;
      --panel:#ffffff;
      --panel-2:#fff7f3;
      --text:#132238;
      --muted:#5f6b7a;
      --line:#e7eaf0;
      --brand:#f43f5e;
      --brand-2:#f59e0b;
      --brand-3:#2563eb;
      --brand-4:#14b8a6;
      --shadow:0 18px 50px rgba(15,23,42,.08);
      --radius:22px;
      --radius-sm:16px;
      --max:1200px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:Inter, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;
      color:var(--text);
      background:
        radial-gradient(circle at top left, rgba(244,63,94,.08), transparent 28%),
        radial-gradient(circle at top right, rgba(37,99,235,.08), transparent 26%),
        linear-gradient(180deg,#f8fafc 0%, #f6f7fb 28%, #f6f7fb 100%);
      line-height:1.7;
    }
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    .container{width:min(100% - 32px, var(--max)); margin:0 auto}
    .topbar{
      position:sticky; top:0; z-index:50;
      backdrop-filter:saturate(180%) blur(14px);
      background:rgba(255,255,255,.82);
      border-bottom:1px solid rgba(231,234,240,.9);
    }
    .nav{
      display:flex; align-items:center; justify-content:space-between; gap:18px;
      padding:14px 0;
    }
    .brand{display:flex; align-items:center; gap:12px; min-width:0}
    .brand img{width:42px; height:42px; object-fit:contain; border-radius:12px; background:#fff; box-shadow:0 8px 24px rgba(0,0,0,.06)}
    .brand .name{font-weight:800; font-size:1.05rem; letter-spacing:.02em}
    .brand .sub{font-size:.82rem; color:var(--muted)}
    .nav-toggle{
      display:none; border:1px solid var(--line); background:#fff; color:var(--text);
      padding:10px 12px; border-radius:12px; font-weight:700;
    }
    .nav-links{display:flex; align-items:center; gap:18px; flex-wrap:wrap; justify-content:flex-end}
    .nav-links a{font-size:.94rem; color:#2d3a4d; padding:8px 10px; border-radius:10px; transition:.2s}
    .nav-links a:hover,.nav-links a:focus{background:#f2f5fb; color:var(--brand)}
    .hero{
      padding:34px 0 18px;
    }
    .hero-grid{
      display:grid; grid-template-columns:1.15fr .85fr; gap:22px; align-items:stretch;
    }
    .hero-card{
      border:1px solid rgba(231,234,240,.9);
      background:
        linear-gradient(135deg, rgba(244,63,94,.11), rgba(37,99,235,.08) 36%, rgba(255,255,255,.92) 74%),
        linear-gradient(180deg,#fff 0%, #fff 100%);
      border-radius:28px;
      padding:28px;
      box-shadow:var(--shadow);
      position:relative;
      overflow:hidden;
    }
    .hero-card::after{
      content:""; position:absolute; inset:auto -40px -40px auto; width:180px; height:180px;
      background:radial-gradient(circle, rgba(245,158,11,.18), transparent 68%);
      pointer-events:none;
    }
    .eyebrow{
      display:inline-flex; align-items:center; gap:8px;
      padding:7px 12px; border-radius:999px;
      background:rgba(244,63,94,.09); color:#b91c1c; font-weight:700; font-size:.86rem;
    }
    h1{
      margin:14px 0 12px; font-size:clamp(2rem, 4vw, 3.55rem); line-height:1.08; letter-spacing:-.03em;
    }
    .lead{margin:0; color:var(--muted); font-size:1.02rem; max-width:62ch}
    .hero-actions{display:flex; flex-wrap:wrap; gap:12px; margin-top:22px}
    .btn{
      display:inline-flex; align-items:center; justify-content:center; gap:10px;
      padding:13px 18px; border-radius:14px; font-weight:800;
      border:1px solid transparent; transition:.22s ease; cursor:pointer;
      min-height:46px;
    }
    .btn-primary{background:linear-gradient(135deg, var(--brand), #fb7185); color:#fff; box-shadow:0 14px 28px rgba(244,63,94,.22)}
    .btn-primary:hover{transform:translateY(-2px); box-shadow:0 18px 36px rgba(244,63,94,.26)}
    .btn-secondary{background:#fff; border-color:var(--line); color:var(--text)}
    .btn-secondary:hover{transform:translateY(-2px); border-color:#ccd5e1}
    .hero-metrics{
      display:grid; grid-template-columns:repeat(2,1fr); gap:14px; margin-top:22px;
    }
    .metric,.mini-panel,.card,.step,.faq-item,.review,.price-box,.case-card,.article-card,.contact-card,.compare-box{
      background:rgba(255,255,255,.92);
      border:1px solid var(--line);
      border-radius:var(--radius);
      box-shadow:0 10px 30px rgba(15,23,42,.05);
    }
    .metric{padding:18px}
    .metric .k{font-size:1.5rem; font-weight:900; color:#0f172a}
    .metric .t{font-weight:700; margin-top:4px}
    .metric .d{color:var(--muted); font-size:.92rem; margin-top:4px}
    .hero-side{
      display:grid; gap:14px;
    }
    .mini-panel{padding:20px}
    .mini-title{font-weight:900; margin:0 0 10px; font-size:1.05rem}
    .chip-cloud{display:flex; flex-wrap:wrap; gap:10px}
    .chip{
      padding:8px 12px; border-radius:999px; font-size:.9rem; background:#f8fafc;
      border:1px solid #e8edf4; color:#273449
    }
    .section{padding:20px 0}
    .section-head{display:flex; align-items:end; justify-content:space-between; gap:16px; margin-bottom:16px}
    .section h2{margin:0; font-size:1.65rem; line-height:1.2}
    .section p.desc{margin:0; color:var(--muted); max-width:70ch}
    .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{padding:20px}
    .card h3{margin:0 0 8px; font-size:1.06rem}
    .card p{margin:0; color:var(--muted)}
    .icon{
      width:42px; height:42px; border-radius:14px; display:grid; place-items:center; margin-bottom:12px;
      background:linear-gradient(135deg, rgba(244,63,94,.13), rgba(245,158,11,.13));
      color:#b91c1c; font-weight:900;
    }
    .tag-row{display:flex; flex-wrap:wrap; gap:10px}
    .tag-row span{padding:8px 12px; border-radius:999px; background:#fff; border:1px solid var(--line); color:#304157; font-size:.88rem}
    .split{
      display:grid; grid-template-columns:1fr 1fr; gap:16px; align-items:start;
    }
    .timeline{display:grid; gap:14px}
    .step{padding:18px; position:relative}
    .step .no{display:inline-flex; align-items:center; justify-content:center; width:32px; height:32px; border-radius:10px; background:rgba(37,99,235,.1); color:var(--brand-3); font-weight:900; margin-bottom:10px}
    .table-wrap{overflow:auto; border-radius:var(--radius); border:1px solid var(--line); background:#fff}
    table{width:100%; border-collapse:collapse; min-width:900px}
    th,td{padding:14px 14px; border-bottom:1px solid #edf1f6; text-align:left; vertical-align:top}
    th{background:#fbfcfe; font-size:.92rem}
    tr:last-child td{border-bottom:none}
    .compare-box{padding:20px}
    .rating{
      display:flex; flex-wrap:wrap; gap:10px; align-items:center; margin-top:12px
    }
    .stars{color:#f59e0b; letter-spacing:2px; font-size:1.1rem}
    .strong{font-weight:800}
    .form-grid{display:grid; grid-template-columns:1fr 1fr; gap:14px}
    .field{display:grid; gap:7px}
    label{font-weight:700; font-size:.94rem}
    input,select,textarea{
      width:100%; padding:13px 14px; border-radius:14px; border:1px solid #dce3ec; background:#fff; color:var(--text);
      font:inherit; outline:none; transition:.2s
    }
    input:focus,select:focus,textarea:focus{border-color:#f59e0b; box-shadow:0 0 0 4px rgba(245,158,11,.12)}
    textarea{min-height:128px; resize:vertical}
    .form-actions{display:flex; gap:12px; flex-wrap:wrap; margin-top:6px}
    .review-grid{display:grid; grid-template-columns:repeat(3,1fr); gap:16px}
    .review{padding:20px}
    .review .meta{display:flex; justify-content:space-between; gap:10px; align-items:center; margin-bottom:10px}
    .avatar{width:40px; height:40px; border-radius:14px; background:linear-gradient(135deg, #f43f5e, #f59e0b); color:#fff; display:grid; place-items:center; font-weight:900}
    .review .role{color:var(--muted); font-size:.9rem}
    .article-list{display:grid; gap:12px}
    .article-card{padding:18px; display:flex; justify-content:space-between; gap:14px; align-items:center}
    .article-card strong{display:block; margin-bottom:4px}
    .article-card span{color:var(--muted); font-size:.92rem}
    .faq{display:grid; gap:12px}
    .faq-item{overflow:hidden}
    .faq-q{
      width:100%; background:none; border:none; padding:18px 18px; text-align:left; display:flex; justify-content:space-between; gap:12px;
      align-items:center; font:inherit; font-weight:800; color:var(--text); cursor:pointer;
    }
    .faq-a{max-height:0; overflow:hidden; transition:max-height .28s ease; padding:0 18px}
    .faq-item.active .faq-a{padding-bottom:18px}
    .faq-item.active .faq-icon{transform:rotate(45deg)}
    .faq-icon{transition:.2s; font-size:1.2rem; color:var(--brand)}
    .footer{
      margin-top:22px;
      padding:26px 0 28px;
      background:#0f172a;
      color:#e5e7eb;
    }
    .footer a{color:#fda4af}
    .footer-grid{display:grid; grid-template-columns:1.2fr .8fr .9fr; gap:18px}
    .footer small,.footer p{color:#cbd5e1}
    .footer .muted{color:#cbd5e1}
    .footer-card{padding:0}
    .footer-box{padding:0}
    .footer-links{display:flex; flex-wrap:wrap; gap:10px}
    .footer-links a{padding:8px 10px; border:1px solid rgba(255,255,255,.12); border-radius:10px; background:rgba(255,255,255,.04)}
    .floating{
      position:fixed; right:18px; bottom:18px; z-index:60; display:grid; gap:10px;
    }
    .float-btn{
      width:50px; height:50px; border-radius:16px; display:grid; place-items:center; border:none; cursor:pointer;
      background:linear-gradient(135deg, var(--brand), var(--brand-2)); color:#fff; box-shadow:0 14px 24px rgba(244,63,94,.26);
    }
    .contact-pop{
      position:fixed; right:18px; bottom:78px; width:min(340px, calc(100vw - 36px));
      background:#fff; border:1px solid var(--line); border-radius:22px; box-shadow:var(--shadow);
      padding:16px; display:none; z-index:59;
    }
    .contact-pop.open{display:block}
    .contact-pop h3{margin:0 0 10px}
    .contact-pop .qrcode{display:grid; grid-template-columns:84px 1fr; gap:12px; align-items:center}
    .contact-pop img{width:84px; height:84px; object-fit:cover; border-radius:14px; border:1px solid var(--line)}
    .top-links{display:flex; flex-wrap:wrap; gap:10px; align-items:center}
    .home-link{color:var(--brand-3); font-weight:800}
    .scroll-top{position:fixed; right:18px; bottom:140px; display:none}
    .visible{display:grid}
    .price-grid{display:grid; grid-template-columns:repeat(3,1fr); gap:16px}
    .price-box{padding:20px}
    .price{font-size:1.7rem; font-weight:900}
    .case-grid{display:grid; grid-template-columns:repeat(2,1fr); gap:16px}
    .case-card{padding:20px}
    .badge{
      display:inline-flex; padding:6px 10px; border-radius:999px; background:rgba(20,184,166,.1); color:#0f766e; font-weight:700; font-size:.84rem
    }
    .anchor-offset{scroll-margin-top:92px}
    .hidden{display:none}
    @media (max-width: 980px){
      .hero-grid,.grid-3,.grid-4,.split,.review-grid,.price-grid,.case-grid,.footer-grid{grid-template-columns:1fr}
      .hero{padding-top:22px}
      .nav-toggle{display:inline-flex}
      .nav-links{
        display:none; position:absolute; left:16px; right:16px; top:70px; background:#fff; border:1px solid var(--line);
        border-radius:20px; padding:14px; box-shadow:var(--shadow)
      }
      .nav-links.open{display:flex; flex-direction:column; align-items:flex-start}
      .section-head{flex-direction:column; align-items:flex-start}
      .form-grid{grid-template-columns:1fr}
      .hero-metrics{grid-template-columns:1fr 1fr}
    }
    @media (max-width: 640px){
      .container{width:min(100% - 24px, var(--max))}
      .hero-card,.mini-panel,.card,.step,.review,.price-box,.case-card,.article-card,.contact-card,.compare-box{border-radius:20px}
      .hero-card{padding:22px}
      .hero-metrics{grid-template-columns:1fr}
      .nav{padding:12px 0}
      .brand .sub{display:none}
      h1{font-size:2.1rem}
      .btn{width:100%}
      .hero-actions{flex-direction:column}
      .article-card{flex-direction:column; align-items:flex-start}
      .floating{right:12px; bottom:12px}
      .contact-pop{right:12px; bottom:72px}
    }
    .reveal{opacity:0; transform:translateY(18px); transition:all .6s ease}
    .reveal.show{opacity:1; transform:none}