:root{
      --bg:#f6f7fb;
      --bg2:#eef3ff;
      --card:#ffffff;
      --text:#162033;
      --muted:#5d6b83;
      --line:#dbe3f0;
      --brand:#ff4d6d;
      --brand2:#7c5cff;
      --brand3:#12b3a8;
      --accent:#ffb703;
      --shadow:0 18px 50px rgba(23, 35, 71, .08);
      --radius:22px;
      --container:1180px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;background:linear-gradient(180deg,#f9fbff 0%, #f5f7fc 32%, #f8f9fd 100%);color:var(--text);line-height:1.6}
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    .container{width:min(var(--container), calc(100% - 32px));margin:0 auto}
    header{position:sticky;top:0;z-index:50;background:rgba(248,250,255,.88);backdrop-filter:blur(14px);border-bottom:1px solid rgba(219,227,240,.8)}
    .topbar{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 img{width:42px;height:42px;object-fit:contain;border-radius:12px;background:#fff;border:1px solid var(--line);padding:4px;box-shadow:0 8px 20px rgba(0,0,0,.05)}
    .brand strong{display:block;font-size:16px;letter-spacing:.5px}
    .brand span{display:block;font-size:12px;color:var(--muted)}
    nav{display:flex;align-items:center;gap:18px}
    nav a{font-size:14px;color:var(--muted);padding:8px 0;position:relative;white-space:nowrap}
    nav a::after{content:"";position:absolute;left:0;bottom:0;width:100%;height:2px;background:linear-gradient(90deg,var(--brand),var(--brand2));transform:scaleX(0);transform-origin:left;transition:transform .25s ease}
    nav a:hover::after, nav a.active::after{transform:scaleX(1)}
    .nav-actions{display:flex;align-items:center;gap:10px}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:none;border-radius:999px;padding:12px 18px;font-weight:700;cursor:pointer;transition:.25s ease;box-shadow:none}
    .btn-primary{color:#fff;background:linear-gradient(135deg,var(--brand),var(--brand2));box-shadow:0 14px 28px rgba(124,92,255,.22)}
    .btn-primary:hover{transform:translateY(-2px);box-shadow:0 18px 34px rgba(124,92,255,.28)}
    .btn-ghost{background:#fff;color:var(--text);border:1px solid var(--line)}
    .btn-ghost:hover{transform:translateY(-2px);border-color:#c9d5ea}
    .menu-toggle{display:none;background:#fff;border:1px solid var(--line);border-radius:14px;padding:10px 12px}
    main{overflow:hidden}
    section{padding:64px 0}
    .hero{padding:34px 0 40px;background:
      radial-gradient(circle at 16% 18%, rgba(255,77,109,.12), transparent 28%),
      radial-gradient(circle at 82% 22%, rgba(124,92,255,.14), transparent 24%),
      radial-gradient(circle at 50% 78%, rgba(18,179,168,.11), transparent 28%)}
    .hero-grid{display:grid;grid-template-columns:1.18fr .82fr;gap:28px;align-items:stretch}
    .hero-card,.panel,.card,.faq-item,.review-card,.case-card,.article-card,.service-card,.step,.metric,.compare{background:rgba(255,255,255,.9);border:1px solid rgba(219,227,240,.85);border-radius:var(--radius);box-shadow:var(--shadow)}
    .hero-card{padding:34px;position:relative;overflow:hidden}
    .hero-card::before{content:"";position:absolute;inset:auto -70px -70px auto;width:220px;height:220px;background:radial-gradient(circle, rgba(255,77,109,.16), transparent 62%);border-radius:50%}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;padding:8px 14px;border-radius:999px;background:linear-gradient(135deg, rgba(255,77,109,.12), rgba(124,92,255,.12));color:#b12b4a;font-weight:700;font-size:13px}
    h1{margin:18px 0 14px;font-size:clamp(34px,5vw,58px);line-height:1.08;letter-spacing:-.02em}
    .hero p{margin:0;color:var(--muted);font-size:16px;max-width:62ch}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin:24px 0 20px}
    .hero-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:22px}
    .metric{padding:16px}
    .metric strong{display:block;font-size:24px}
    .metric span{font-size:13px;color:var(--muted)}
    .hero-side{display:grid;gap:14px}
    .panel{padding:22px}
    .panel h3{margin:0 0 10px;font-size:18px}
    .list{display:grid;gap:10px;padding:0;margin:0;list-style:none}
    .list li{display:flex;gap:10px;align-items:flex-start;color:var(--muted);font-size:14px}
    .dot{width:10px;height:10px;border-radius:50%;margin-top:7px;background:linear-gradient(135deg,var(--brand),var(--brand2));flex:0 0 auto}
    .marquee{display:flex;flex-wrap:wrap;gap:10px}
    .tag{padding:9px 12px;border-radius:999px;background:#fff;border:1px solid var(--line);color:#3d4c68;font-size:13px}
    .grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
    .section-title{display:flex;align-items:end;justify-content:space-between;gap:18px;margin-bottom:22px}
    .section-title h2{margin:0;font-size:clamp(24px,3vw,38px)}
    .section-title p{margin:0;color:var(--muted);max-width:62ch}
    .card,.service-card,.case-card,.article-card,.review-card,.faq-item,.step,.compare{padding:22px}
    .card h3,.service-card h3,.step h3,.case-card h3,.article-card h3,.review-card h3{margin:0 0 10px;font-size:18px}
    .card p,.service-card p,.step p,.case-card p,.article-card p,.review-card p{margin:0;color:var(--muted)}
    .icon{width:44px;height:44px;border-radius:14px;display:grid;place-items:center;background:linear-gradient(135deg, rgba(255,77,109,.12), rgba(124,92,255,.12));color:#d93558;font-weight:800;margin-bottom:14px}
    .flow{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
    .step{position:relative;overflow:hidden}
    .step .n{position:absolute;right:16px;top:14px;font-size:34px;font-weight:900;color:rgba(124,92,255,.12)}
    .table-wrap{overflow:auto;border-radius:var(--radius);border:1px solid var(--line);background:#fff;box-shadow:var(--shadow)}
    table{width:100%;border-collapse:collapse;min-width:820px}
    th,td{padding:16px 18px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}
    th{background:#f5f7ff;color:#1d2a44;font-size:14px}
    td{color:#33415c;font-size:14px}
    .good{color:#0f8a60;font-weight:700}
    .badge{display:inline-flex;align-items:center;gap:6px;padding:7px 10px;border-radius:999px;background:#f2f6ff;border:1px solid #dce6ff;color:#3d4c68;font-size:12px;margin:0 8px 8px 0}
    .compare-head{display:grid;grid-template-columns:1.1fr .9fr;gap:18px;align-items:stretch}
    .scorebox{padding:24px;background:linear-gradient(135deg,#ffffff 0%, #f8f4ff 100%);border:1px solid #e5dcff}
    .score{font-size:52px;font-weight:900;line-height:1;color:#5638c6}
    .stars{color:#ff9d00;font-size:20px;letter-spacing:2px}
    .timeline{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .timeline .step p{min-height:72px}
    .form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
    .form-grid .full{grid-column:1/-1}
    label{display:block;font-size:13px;font-weight:700;margin-bottom:8px;color:#2a3954}
    input,select,textarea{width:100%;border:1px solid #d8e0ee;background:#fff;border-radius:14px;padding:13px 14px;font:inherit;color:var(--text);outline:none;transition:.2s ease}
    input:focus,select:focus,textarea:focus{border-color:#9fb0dd;box-shadow:0 0 0 4px rgba(124,92,255,.08)}
    textarea{min-height:128px;resize:vertical}
    .footer{padding:34px 0 24px;background:#0f1728;color:#d7e1f8;margin-top:0}
    .footer .container{width:min(var(--container), calc(100% - 32px))}
    .footer a{color:#ffffff}
    .footer-top{display:grid;grid-template-columns:1.15fr .85fr .9fr;gap:20px}
    .footer h3,.footer h4{margin:0 0 12px;color:#fff}
    .footer p,.footer li,.footer small{color:#b9c6e4}
    .footer ul{list-style:none;padding:0;margin:0;display:grid;gap:8px}
    .footer-bottom{margin-top:22px;padding-top:16px;border-top:1px solid rgba(255,255,255,.12);display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap}
    .floating{position:fixed;right:16px;bottom:16px;z-index:60;display:grid;gap:10px}
    .floating a,.floating button{width:48px;height:48px;border-radius:50%;border:none;display:grid;place-items:center;box-shadow:0 12px 24px rgba(0,0,0,.16);cursor:pointer}
    .floating .kefu{background:linear-gradient(135deg,var(--brand),var(--brand2));color:#fff}
    .floating .top{background:#fff;color:var(--text);border:1px solid var(--line)}
    .reveal{opacity:0;transform:translateY(16px);transition:.7s ease}
    .reveal.show{opacity:1;transform:none}
    .accordion{display:grid;gap:12px}
    .faq-item{padding:0;overflow:hidden}
    .faq-q{width:100%;text-align:left;background:none;border:none;padding:18px 20px;font:inherit;font-weight:700;color:var(--text);display:flex;justify-content:space-between;align-items:center;gap:16px}
    .faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease;padding:0 20px}
    .faq-item.open .faq-a{max-height:180px;padding-bottom:18px}
    .chev{transition:transform .3s ease}
    .faq-item.open .chev{transform:rotate(180deg)}
    .mobile-nav{display:none}
    @media (max-width: 1024px){
      .hero-grid,.compare-head,.footer-top,.grid-3,.flow,.timeline{grid-template-columns:1fr}
      nav{display:none}
      .menu-toggle{display:inline-grid}
      .mobile-nav{display:none;padding:0 0 14px}
      .mobile-nav.open{display:block}
      .mobile-nav .links{display:grid;grid-template-columns:repeat(2,1fr);gap:8px}
      .mobile-nav a{padding:12px 14px;border:1px solid var(--line);border-radius:14px;background:#fff;color:var(--text);font-size:14px}
    }
    @media (max-width: 720px){
      section{padding:52px 0}
      .hero-card{padding:24px}
      .hero-stats,.form-grid{grid-template-columns:1fr}
      .section-title{flex-direction:column;align-items:flex-start}
      .btn{width:100%}
      .hero-actions{grid-template-columns:1fr}
      .floating{right:12px;bottom:12px}
    }