:root{
      --bg:#f6f8fc;
      --panel:#ffffff;
      --panel-2:#f3f7ff;
      --text:#172033;
      --muted:#5e687c;
      --line:#dbe4f1;
      --brand:#2d6cff;
      --brand-2:#ff6b81;
      --brand-3:#12c8a8;
      --shadow:0 16px 40px rgba(31,59,122,.10);
      --shadow-sm:0 10px 24px rgba(31,59,122,.08);
      --radius:20px;
      --radius-sm:14px;
      --container:1180px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;
      color:var(--text);
      background:
        radial-gradient(circle at top left, rgba(45,108,255,.09), transparent 28%),
        radial-gradient(circle at top right, rgba(255,107,129,.10), transparent 24%),
        linear-gradient(180deg,#f9fbff 0%,#f4f7fc 100%);
      min-width:320px;
    }
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    .container{width:min(100% - 32px, var(--container)); margin:0 auto}
    .topbar{
      position:sticky;top:0;z-index:50;
      backdrop-filter: blur(12px);
      background:rgba(246,248,252,.82);
      border-bottom:1px solid rgba(219,228,241,.8);
    }
    .nav{
      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 .mark{
      width:42px;height:42px;border-radius:14px;
      background:linear-gradient(135deg,var(--brand),var(--brand-2));
      display:grid;place-items:center;color:#fff;font-weight:800;box-shadow:0 12px 24px rgba(45,108,255,.20);
      flex:0 0 auto;
    }
    .brand .text{min-width:0}
    .brand h1,.brand .site-name{font-size:18px;line-height:1.1;margin:0;font-weight:800}
    .brand p{margin:4px 0 0;color:var(--muted);font-size:12px}
    .nav-links{display:flex;align-items:center;gap:8px;flex-wrap:wrap;justify-content:flex-end}
    .nav-links a,.nav-cta{
      padding:10px 14px;border:1px solid transparent;border-radius:999px;
      font-size:14px;font-weight:600;transition:.22s ease;
    }
    .nav-links a:hover,.nav-cta:hover{transform:translateY(-1px);background:rgba(45,108,255,.08);border-color:rgba(45,108,255,.14)}
    .nav-cta{background:linear-gradient(135deg,var(--brand),#4c8cff);color:#fff;box-shadow:0 12px 24px rgba(45,108,255,.18)}
    .menu-btn{display:none;border:1px solid var(--line);background:#fff;border-radius:12px;padding:10px 12px;font-size:14px;color:var(--text)}
    .hero{
      padding:34px 0 24px;
    }
    .hero-grid{
      display:grid;grid-template-columns:1.15fr .85fr;gap:22px;align-items:stretch;
    }
    .hero-main,.hero-side,.panel,.card,.faq-item,.review,.article,.compare,.form-wrap,.timeline-item,.metric,.service,.price-item,.case,.help-box{
      background:rgba(255,255,255,.88);
      border:1px solid rgba(219,228,241,.95);
      box-shadow:var(--shadow-sm);
      border-radius:var(--radius);
    }
    .hero-main{
      padding:30px;
      position:relative;overflow:hidden;
      background:
        linear-gradient(180deg, rgba(255,255,255,.95), rgba(247,250,255,.95)),
        radial-gradient(circle at 20% 15%, rgba(45,108,255,.12), transparent 22%),
        radial-gradient(circle at 80% 10%, rgba(255,107,129,.10), transparent 18%);
    }
    .eyebrow{
      display:inline-flex;align-items:center;gap:8px;
      background:rgba(45,108,255,.09);color:#234ba8;border:1px solid rgba(45,108,255,.12);
      border-radius:999px;padding:8px 12px;font-size:13px;font-weight:700;
    }
    .hero h2{
      margin:16px 0 12px;font-size:clamp(30px,4vw,54px);line-height:1.06;letter-spacing:-.02em;
    }
    .hero p.lead{
      margin:0;color:var(--muted);font-size:16px;line-height:1.8;max-width:62ch;
    }
    .hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:22px}
    .btn{
      display:inline-flex;align-items:center;justify-content:center;gap:8px;
      padding:13px 18px;border-radius:14px;font-weight:700;font-size:15px;
      border:1px solid transparent;transition:.22s ease;cursor:pointer;
    }
    .btn.primary{background:linear-gradient(135deg,var(--brand),#57a0ff);color:#fff;box-shadow:0 14px 30px rgba(45,108,255,.22)}
    .btn.secondary{background:#fff;border-color:var(--line);color:var(--text)}
    .btn:hover{transform:translateY(-2px)}
    .hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
    .badge{
      padding:9px 12px;border-radius:999px;background:#f4f7ff;border:1px solid #dbe4f1;font-size:13px;color:#29415e;font-weight:600
    }
    .hero-side{padding:22px;display:grid;gap:14px}
    .metric-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
    .metric{padding:16px}
    .metric strong{display:block;font-size:24px;line-height:1;margin-bottom:8px}
    .metric span{color:var(--muted);font-size:13px;line-height:1.5}
    section{padding:12px 0 26px}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:16px;margin-bottom:16px}
    .section-head h3{margin:0;font-size:28px;line-height:1.15}
    .section-head p{margin:0;color:var(--muted);max-width:68ch;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,.service,.compare,.help-box,.case,.review,.article,.form-wrap,.price-item,.timeline-item,.faq-item{padding:20px}
    .card h4,.service h4,.case h4,.review h4,.article h4,.price-item h4,.help-box h4{margin:0 0 10px;font-size:18px}
    .card p,.service p,.case p,.review p,.article p,.price-item p,.help-box p{margin:0;color:var(--muted);line-height:1.75}
    .icon{
      width:44px;height:44px;border-radius:14px;
      display:grid;place-items:center;margin-bottom:14px;
      background:linear-gradient(135deg,rgba(45,108,255,.12),rgba(255,107,129,.12));
      color:#284d9b;font-weight:800;
    }
    .tag-cloud{display:flex;flex-wrap:wrap;gap:10px}
    .tag-cloud span{
      padding:8px 11px;border:1px solid var(--line);border-radius:999px;background:#fff;font-size:13px;color:#3a4a63
    }
    .workflow{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}
    .step{
      padding:18px;border-radius:18px;border:1px solid var(--line);background:linear-gradient(180deg,#fff, #f8fbff)
    }
    .step .num{
      width:32px;height:32px;border-radius:10px;margin-bottom:12px;
      display:grid;place-items:center;background:rgba(45,108,255,.10);color:#234ba8;font-weight:800
    }
    .compare table{width:100%;border-collapse:collapse;min-width:780px}
    .table-wrap{overflow-x:auto;border-radius:16px}
    th,td{padding:14px 12px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
    th{background:#f5f8ff;font-size:14px;color:#30405a}
    td{color:#405067;font-size:14px;line-height:1.65}
    .highlight{background:linear-gradient(90deg,rgba(45,108,255,.10),rgba(255,107,129,.08));font-weight:700;color:#203258}
    .compare-note{
      display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;
      margin-top:14px;padding:14px 16px;border-radius:16px;background:#f4f8ff;border:1px solid #dbe4f1
    }
    .rating{font-size:20px;font-weight:800;color:#173f9b}
    .timeline{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}
    .timeline-item .time{color:#234ba8;font-weight:800;font-size:13px;margin-bottom:8px}
    .reviews,.articles,.faq-list,.help-grid,.cases,.prices{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
    .review .meta{display:flex;align-items:center;gap:12px;margin-bottom:14px}
    .avatar{
      width:42px;height:42px;border-radius:50%;
      background:linear-gradient(135deg,#2d6cff,#ff6b81);color:#fff;display:grid;place-items:center;font-weight:800;flex:0 0 auto
    }
    .review small{color:var(--muted)}
    .article a,.case a{color:#234ba8;font-weight:700}
    .faq-item{padding:0;overflow:hidden}
    .faq-q{
      width:100%;padding:18px 20px;border:0;background:transparent;display:flex;justify-content:space-between;gap:16px;
      font-size:16px;font-weight:700;color:var(--text);text-align:left;cursor:pointer
    }
    .faq-a{padding:0 20px 18px;color:var(--muted);line-height:1.8;display:none}
    .faq-item.open .faq-a{display:block}
    .faq-item.open .faq-q{background:#f7faff}
    .form-wrap form{display:grid;gap:14px}
    .field-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
    label{display:grid;gap:8px;font-size:14px;font-weight:700;color:#30405a}
    input,select,textarea{
      width:100%;padding:13px 14px;border-radius:14px;border:1px solid #d7e0ee;background:#fff;
      font:inherit;color:var(--text);outline:none;transition:.2s ease
    }
    input:focus,select:focus,textarea:focus{border-color:#7ca7ff;box-shadow:0 0 0 4px rgba(45,108,255,.10)}
    textarea{min-height:120px;resize:vertical}
    .submit-row{display:flex;gap:12px;flex-wrap:wrap;align-items:center}
    .footer{
      margin-top:12px;
      padding:28px 0 26px;
      border-top:1px solid rgba(219,228,241,.9);
      background:linear-gradient(180deg,#f7faff,#eef3fb);
    }
    .footer-inner{
      display:grid;grid-template-columns:1.2fr .8fr;gap:18px;align-items:start
    }
    .footer a{color:#234ba8}
    .footer small,.footer p{color:#5f6a7f}
    .footer-links{display:flex;flex-wrap:wrap;gap:10px;margin-top:10px}
    .footer-links a,.link-pill{
      padding:8px 11px;border-radius:999px;background:#fff;border:1px solid var(--line);font-size:13px;font-weight:600
    }
    .float-box{
      position:fixed;right:16px;bottom:16px;z-index:60;display:grid;gap:10px
    }
    .float-box a,.backtop{
      width:52px;height:52px;border-radius:16px;border:0;cursor:pointer;
      box-shadow:var(--shadow-sm);display:grid;place-items:center;font-weight:800
    }
    .float-box a{background:linear-gradient(135deg,var(--brand),#4f96ff);color:#fff}
    .backtop{background:#fff;color:#21406d;border:1px solid var(--line);opacity:0;pointer-events:none;transition:.2s ease}
    .backtop.show{opacity:1;pointer-events:auto}
    .side-visual{
      display:grid;gap:14px
    }
    .mini-banner{
      border-radius:18px;overflow:hidden;border:1px solid var(--line);background:#fff
    }
    .mini-banner img{width:100%;height:auto}
    .list-check{margin:0;padding:0;list-style:none;display:grid;gap:10px}
    .list-check li{display:flex;gap:10px;align-items:flex-start;color:#3e4d67;line-height:1.7}
    .list-check li::before{content:"";width:8px;height:8px;border-radius:50%;background:linear-gradient(135deg,var(--brand),var(--brand-2));margin-top:9px;flex:0 0 auto}
    .focus-strip{
      padding:16px 18px;border-radius:18px;background:linear-gradient(135deg,rgba(45,108,255,.09),rgba(18,200,168,.10));
      border:1px solid rgba(45,108,255,.12)
    }
    .subtle{color:var(--muted)}
    .divider{height:1px;background:var(--line);margin:14px 0}
    .two-col{display:grid;grid-template-columns:1fr 1fr;gap:16px}
    .mobile-only{display:none}
    [data-reveal]{opacity:0;transform:translateY(16px);transition: .6s ease}
    [data-reveal].show{opacity:1;transform:none}
    @media (max-width: 1024px){
      .hero-grid,.grid-3,.workflow,.timeline,.reviews,.articles,.faq-list,.help-grid,.cases,.prices,.footer-inner,.grid-2,.two-col{grid-template-columns:1fr}
      .section-head{align-items:flex-start;flex-direction:column}
      .field-grid{grid-template-columns:1fr}
      .nav-links{display:none}
      .menu-btn{display:inline-flex}
      .nav.open .nav-links{
        display:flex;position:absolute;left:16px;right:16px;top:68px;flex-direction:column;align-items:stretch;
        background:#fff;padding:12px;border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow)
      }
      .nav.open .nav-links a,.nav.open .nav-cta{justify-content:center}
      .mobile-only{display:block}
    }