:root{
      --bg:#f6f7fb;
      --panel:#ffffff;
      --panel-2:#fdf8f2;
      --line:#e7e9f2;
      --text:#1f2937;
      --muted:#5f6b7d;
      --brand:#275efe;
      --brand-2:#7c3aed;
      --brand-3:#12b8a6;
      --accent:#ff8a3d;
      --shadow:0 18px 45px rgba(31,41,55,.08);
      --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,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
      color:var(--text);
      background:
        radial-gradient(circle at top left, rgba(39,94,254,.12), transparent 28%),
        radial-gradient(circle at 85% 10%, rgba(124,58,237,.10), transparent 24%),
        linear-gradient(180deg,#fbfcff 0%, #f6f7fb 42%, #f7f8fc 100%);
    }
    a{color:var(--brand);text-decoration:none}
    img{display:block;max-width:100%}
    .container{max-width:var(--container);margin:0 auto;padding:0 20px}
    header{
      position:sticky;top:0;z-index:50;
      backdrop-filter:saturate(180%) blur(16px);
      background:rgba(255,255,255,.78);
      border-bottom:1px solid rgba(231,233,242,.9);
    }
    .topbar{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:76px}
    .brand{display:flex;align-items:center;gap:14px;min-width:0}
    .brand img{width:42px;height:42px;object-fit:contain;border-radius:12px;background:#fff;padding:4px;box-shadow:0 8px 20px rgba(0,0,0,.06)}
    .brand strong{display:block;font-size:1.06rem;letter-spacing:.5px}
    .brand span{display:block;font-size:.86rem;color:var(--muted)}
    .nav{display:flex;align-items:center;gap:8px;flex-wrap:wrap;justify-content:flex-end}
    .nav a,.nav button{
      border:1px solid transparent;
      background:transparent;
      color:var(--text);
      padding:10px 12px;
      border-radius:12px;
      font-size:.95rem;
      cursor:pointer;
    }
    .nav a:hover,.nav button:hover{background:#f2f5ff;border-color:#dbe3ff;color:#173cb8}
    .nav .primary{
      background:linear-gradient(135deg,var(--brand),var(--brand-2));
      color:#fff;
      box-shadow:0 10px 22px rgba(39,94,254,.18);
    }
    .menu-toggle{display:none}
    main{padding:24px 0 8px}
    section{padding:26px 0}
    .hero{
      padding-top:18px;
    }
    .hero-grid{
      display:grid;
      grid-template-columns:1.18fr .82fr;
      gap:22px;
      align-items:stretch;
    }
    .hero-panel{
      background:
        linear-gradient(135deg, rgba(39,94,254,.10), rgba(124,58,237,.08) 45%, rgba(18,184,166,.08)),
        #fff;
      border:1px solid rgba(231,233,242,.95);
      border-radius:28px;
      padding:32px;
      box-shadow:var(--shadow);
      overflow:hidden;
      position:relative;
    }
    .hero-panel::after{
      content:"";
      position:absolute;inset:auto -70px -90px auto;
      width:220px;height:220px;border-radius:50%;
      background:radial-gradient(circle, rgba(255,138,61,.18), transparent 65%);
      pointer-events:none;
    }
    .eyebrow{
      display:inline-flex;align-items:center;gap:8px;
      padding:8px 12px;border-radius:999px;
      background:rgba(39,94,254,.08);
      color:#2147c4;font-weight:700;font-size:.88rem;
      margin-bottom:14px;
    }
    h1{margin:0 0 14px;font-size:clamp(2rem,4vw,3.6rem);line-height:1.08;letter-spacing:-.02em}
    .hero p{margin:0 0 18px;color:var(--muted);font-size:1.05rem;line-height:1.8;max-width:58ch}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px}
    .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;cursor:pointer;transition:.2s ease;min-height:48px;
    }
    .btn:hover{transform:translateY(-1px)}
    .btn-primary{background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#fff;box-shadow:0 14px 28px rgba(39,94,254,.2)}
    .btn-secondary{background:#fff;color:#23314a;border-color:#dbe1ee}
    .hero-stats{
      display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;
    }
    .stat,.card,.info-box,.review,.case,.faq-item,.article,.flow-step,.metric{
      background:var(--panel);
      border:1px solid rgba(231,233,242,.95);
      border-radius:var(--radius-sm);
      box-shadow:0 10px 28px rgba(31,41,55,.05);
    }
    .stat{padding:18px}
    .stat b{display:block;font-size:1.55rem;margin-bottom:6px}
    .stat span{color:var(--muted);font-size:.92rem;line-height:1.6}
    .mini-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}
    .metric{padding:18px 18px 16px;background:linear-gradient(180deg,#fff, #fbfcff)}
    .metric .k{font-size:.9rem;color:var(--muted);margin-bottom:10px}
    .metric .v{font-size:1.5rem;font-weight:800;margin-bottom:8px}
    .metric .d{font-size:.92rem;color:var(--muted);line-height:1.6}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:18px;margin-bottom:16px}
    .section-head h2{margin:0;font-size:1.7rem}
    .section-head p{margin:0;color:var(--muted);max-width:66ch;line-height:1.7}
    .grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
    .grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
    .card{padding:20px}
    .card h3{margin:10px 0 8px;font-size:1.08rem}
    .card p,.card li{color:var(--muted);line-height:1.75}
    .tag-cloud{display:flex;flex-wrap:wrap;gap:10px}
    .tag{padding:9px 12px;border-radius:999px;background:#f3f6ff;border:1px solid #dce4ff;color:#173cb8;font-size:.92rem}
    .bullet-list{margin:0;padding-left:18px}
    .bullet-list li{margin:8px 0}
    .flow{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}
    .flow-step{padding:18px}
    .flow-step .num{
      width:34px;height:34px;border-radius:12px;
      display:inline-flex;align-items:center;justify-content:center;
      background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#fff;font-weight:800;margin-bottom:12px;
    }
    .table-wrap{overflow-x:auto;border-radius:20px;border:1px solid var(--line);background:#fff;box-shadow:var(--shadow)}
    table{width:100%;border-collapse:collapse;min-width:860px}
    th,td{padding:14px 16px;border-bottom:1px solid #edf0f6;text-align:left;vertical-align:top}
    th{background:#f7f9ff;color:#26324a;font-size:.95rem}
    td{color:var(--muted);line-height:1.7}
    .highlight{color:#163bb5;font-weight:700}
    .rating{display:flex;flex-wrap:wrap;gap:10px;align-items:center}
    .stars{color:#ff9a1f;font-size:1.1rem;letter-spacing:2px}
    .accordion{display:grid;gap:12px}
    .faq-item summary{
      list-style:none;cursor:pointer;padding:18px 18px 18px 20px;font-weight:700;color:#24314a;
      display:flex;align-items:center;justify-content:space-between;gap:12px;
    }
    .faq-item summary::-webkit-details-marker{display:none}
    .faq-item summary::after{content:"+";font-size:1.25rem;color:#5570d8}
    .faq-item[open] summary::after{content:"−"}
    .faq-item .answer{padding:0 20px 18px;color:var(--muted);line-height:1.8}
    .review-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:10px}
    .review .name{font-weight:800}
    .review .role{color:var(--muted);font-size:.92rem}
    .review .text{color:var(--muted);line-height:1.8}
    .case small,.article small{color:#6b7280}
    .pill{display:inline-flex;align-items:center;padding:6px 10px;border-radius:999px;background:#edf8f7;color:#148c7c;font-size:.85rem;font-weight:700}
    .timeline{display:grid;gap:12px}
    .timeline-item{display:grid;grid-template-columns:110px 1fr;gap:14px;padding:16px 18px;border-radius:18px;background:#fff;border:1px solid var(--line)}
    .timeline-item b{color:#24314a}
    .timeline-item p{margin:0;color:var(--muted);line-height:1.7}
    .articles{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
    .article{padding:18px}
    .article h3{margin:10px 0 8px;font-size:1.02rem}
    .form-wrap{display:grid;grid-template-columns:1.05fr .95fr;gap:16px}
    form{display:grid;gap:12px}
    .field{display:grid;gap:8px}
    label{font-weight:700;font-size:.95rem}
    input,select,textarea{
      width:100%;border:1px solid #dfe4ef;border-radius:14px;padding:13px 14px;
      font:inherit;background:#fff;color:var(--text);outline:none;
    }
    input:focus,select:focus,textarea:focus{border-color:#7c8dff;box-shadow:0 0 0 4px rgba(39,94,254,.10)}
    textarea{min-height:124px;resize:vertical}
    .submit-row{display:flex;flex-wrap:wrap;gap:10px;align-items:center}
    .note{color:var(--muted);font-size:.92rem;line-height:1.7}
    .floating{
      position:fixed;right:18px;bottom:18px;z-index:60;display:grid;gap:10px
    }
    .floating a,.floating button{
      width:54px;height:54px;border-radius:18px;border:1px solid rgba(231,233,242,.95);
      background:#fff;box-shadow:var(--shadow);display:flex;align-items:center;justify-content:center;
      cursor:pointer;font-size:1rem;color:#2742c5;
    }
    .floating .top{display:none}
    footer{
      margin-top:8px;
      background:#111827;
      color:#e5e7eb;
      padding:28px 0 20px;
      border-top:1px solid rgba(255,255,255,.08);
    }
    footer a{color:#c7d7ff}
    .footer-grid{display:grid;grid-template-columns:1.15fr .85fr .85fr;gap:18px;align-items:start}
    .footer-grid h3{margin:0 0 12px;font-size:1.02rem;color:#fff}
    .footer-grid p,.footer-grid li{color:#cbd5e1;line-height:1.75}
    .footer-grid ul{margin:0;padding-left:18px}
    .copyright{margin-top:18px;padding-top:16px;border-top:1px solid rgba(255,255,255,.08);color:#cbd5e1;font-size:.92rem}
    .contact-card{
      background:linear-gradient(180deg,#fff,#fcfdff);
      border:1px solid var(--line);
      border-radius:24px;
      padding:20px;
      box-shadow:var(--shadow);
    }
    .contact-card img{width:100%;border-radius:18px;object-fit:cover}
    .contact-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px}
    .links{display:flex;flex-wrap:wrap;gap:10px}
    .links a{padding:8px 10px;border-radius:10px;background:#f4f7ff;border:1px solid #dde5ff}
    .center{text-align:center}
    .muted{color:var(--muted)}
    .split-note{display:flex;gap:12px;flex-wrap:wrap;align-items:center}
    .split-note .pill{background:#fff1e8;color:#b14f00}
    .scroll-reveal{opacity:0;transform:translateY(16px);transition:.7s ease}
    .scroll-reveal.show{opacity:1;transform:translateY(0)}
    .nav-panel{display:flex;align-items:center;gap:10px}
    @media (max-width: 1080px){
      .hero-grid,.form-wrap,.footer-grid{grid-template-columns:1fr}
      .mini-grid,.grid-3,.grid-2,.flow,.articles{grid-template-columns:repeat(2,minmax(0,1fr))}
      .section-head{align-items:flex-start;flex-direction:column}
    }
    @media (max-width: 760px){
      .container{padding:0 16px}
      .topbar{min-height:68px}
      .menu-toggle{display:inline-flex}
      .nav{display:none;position:absolute;left:16px;right:16px;top:72px;background:#fff;border:1px solid var(--line);border-radius:20px;padding:12px;box-shadow:var(--shadow);justify-content:flex-start}
      .nav.open{display:flex}
      .nav a,.nav button{width:100%;text-align:left}
      .hero-panel{padding:24px}
      .hero-stats,.mini-grid,.grid-3,.grid-2,.flow,.articles{grid-template-columns:1fr}
      .timeline-item{grid-template-columns:1fr}
      h1{font-size:2rem}
      .floating .top{display:flex}
      .floating a,.floating button{width:50px;height:50px;border-radius:16px}
    }