:root{
      --bg:#f5f8ff;
      --bg2:#eef4ff;
      --card:#ffffff;
      --line:rgba(60,78,120,.12);
      --text:#162033;
      --muted:#5d6a83;
      --brand:#4f6df5;
      --brand2:#8b5cf6;
      --brand3:#22c1c3;
      --warm:#ffb84d;
      --shadow:0 18px 50px rgba(28,42,90,.10);
      --shadow2:0 10px 24px rgba(79,109,245,.14);
      --radius:20px;
      --radius2:14px;
      --max:1200px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:Arial,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
      color:var(--text);
      background:
        radial-gradient(circle at top left, rgba(79,109,245,.12), transparent 28%),
        radial-gradient(circle at 80% 0%, rgba(34,193,195,.14), transparent 24%),
        linear-gradient(180deg,var(--bg),#fff 36%, #f8fbff 100%);
    }
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%;height:auto}
    .container{width:min(var(--max),calc(100% - 32px));margin:0 auto}
    .topbar{
      position:sticky;top:0;z-index:80;
      backdrop-filter:saturate(140%) blur(14px);
      background:rgba(245,248,255,.88);
      border-bottom:1px solid rgba(60,78,120,.08);
    }
    .nav{
      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:40px;height:40px;object-fit:contain;border-radius:10px;background:#fff;box-shadow:0 8px 20px rgba(0,0,0,.06)}
    .brand-text{display:flex;flex-direction:column;line-height:1.1}
    .brand-text strong{font-size:18px;letter-spacing:.5px}
    .brand-text span{font-size:12px;color:var(--muted)}
    .navlinks{display:flex;align-items:center;gap:16px;flex-wrap:wrap;justify-content:flex-end}
    .navlinks a{font-size:14px;color:#22304a;padding:8px 0;position:relative}
    .navlinks a::after{content:"";position:absolute;left:0;bottom:2px;width:100%;height:2px;background:linear-gradient(90deg,var(--brand),var(--brand3));transform:scaleX(0);transform-origin:left;transition:.25s}
    .navlinks a:hover::after,.navlinks a:focus-visible::after{transform:scaleX(1)}
    .nav-cta{display:flex;align-items:center;gap:10px}
    .btn{
      display:inline-flex;align-items:center;justify-content:center;gap:8px;
      border:1px solid transparent;border-radius:999px;padding:12px 18px;
      font-weight:700;font-size:14px;cursor:pointer;transition:.25s ease;
      box-shadow:0 8px 18px rgba(79,109,245,.12);
    }
    .btn-primary{color:#fff;background:linear-gradient(135deg,var(--brand),var(--brand2));}
    .btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 28px rgba(79,109,245,.24)}
    .btn-ghost{background:#fff;border-color:rgba(79,109,245,.16);color:#21314d}
    .btn-ghost:hover{transform:translateY(-2px);box-shadow:var(--shadow2)}
    .menu-btn{display:none;background:#fff;border:1px solid rgba(60,78,120,.14);width:44px;height:44px;border-radius:12px;align-items:center;justify-content:center}
    .menu-btn span{display:block;width:18px;height:2px;background:#24324d;position:relative}
    .menu-btn span::before,.menu-btn span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:#24324d}
    .menu-btn span::before{top:-6px}.menu-btn span::after{top:6px}
    .hero{
      padding:28px 0 14px;
    }
    .hero-grid{
      display:grid;grid-template-columns:1.15fr .85fr;gap:24px;align-items:stretch;
    }
    .hero-main,.hero-side,.section-card,.mini-card,.review-card,.step,.faq-item,.form-wrap,.case-card,.article-card,.compare-card,.pricing-card{
      background:rgba(255,255,255,.86);
      border:1px solid rgba(60,78,120,.12);
      border-radius:var(--radius);
      box-shadow:var(--shadow);
    }
    .hero-main{padding:28px;position:relative;overflow:hidden}
    .hero-main::before,.hero-main::after{
      content:"";position:absolute;border-radius:50%;filter:blur(2px);pointer-events:none;
      background:radial-gradient(circle,rgba(79,109,245,.18),transparent 60%);
    }
    .hero-main::before{width:240px;height:240px;right:-70px;top:-40px}
    .hero-main::after{width:180px;height:180px;left:-60px;bottom:-40px;background:radial-gradient(circle,rgba(34,193,195,.16),transparent 64%)}
    .eyebrow{
      display:inline-flex;align-items:center;gap:8px;
      padding:8px 12px;border-radius:999px;
      background:linear-gradient(90deg,rgba(79,109,245,.12),rgba(34,193,195,.12));
      color:#244; font-size:13px;font-weight:700;
    }
    h1{margin:16px 0 14px;font-size:clamp(30px,4vw,54px);line-height:1.08;letter-spacing:-.02em}
    .hero p{margin:0;color:var(--muted);font-size:16px;line-height:1.8;max-width:760px}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px}
    .hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
    .tag{padding:8px 12px;border-radius:999px;background:#f4f7ff;border:1px solid rgba(79,109,245,.12);font-size:13px;color:#254}
    .hero-side{padding:22px}
    .hero-side h2{margin:0 0 12px;font-size:20px}
    .stat-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
    .mini-card{padding:16px;background:linear-gradient(180deg,#fff, #f8fbff)}
    .mini-card strong{display:block;font-size:24px;margin-bottom:6px}
    .mini-card span{font-size:13px;color:var(--muted);line-height:1.5}
    .section{padding:16px 0 8px}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:16px;margin-bottom:14px}
    .section-head h2{margin:0;font-size:28px}
    .section-head p{margin:0;color:var(--muted);max-width:760px;line-height:1.7}
    .section-card{padding:22px}
    .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:18px;border:1px solid rgba(60,78,120,.10);border-radius:18px;background:#fff;box-shadow:0 8px 18px rgba(26,42,79,.06);transition:.25s}
    .card:hover{transform:translateY(-4px);box-shadow:0 18px 30px rgba(26,42,79,.10)}
    .card h3,.card h4{margin:0 0 10px}
    .card p{margin:0;color:var(--muted);line-height:1.7}
    .icon{
      width:42px;height:42px;border-radius:14px;display:grid;place-items:center;margin-bottom:12px;
      background:linear-gradient(135deg,rgba(79,109,245,.14),rgba(34,193,195,.14));
      color:#325; font-weight:800;
    }
    .flow{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
    .step{padding:18px}
    .step-num{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:999px;color:#fff;font-weight:800;background:linear-gradient(135deg,var(--brand),var(--brand2));margin-bottom:12px}
    .table-wrap{overflow:auto;border-radius:18px;border:1px solid rgba(60,78,120,.10)}
    table{width:100%;border-collapse:collapse;min-width:760px;background:#fff}
    th,td{padding:14px 14px;border-bottom:1px solid rgba(60,78,120,.10);text-align:left;font-size:14px;vertical-align:top}
    th{background:#f7faff;color:#223}
    tr:hover td{background:#fbfcff}
    .rating{display:flex;gap:4px;color:#ffb84d;font-size:18px}
    .compare-card{padding:22px}
    .compare-top{display:grid;grid-template-columns:1fr .88fr;gap:16px;align-items:center}
    .score-box{
      padding:18px;border-radius:18px;background:linear-gradient(135deg,rgba(79,109,245,.10),rgba(34,193,195,.12));
      border:1px solid rgba(79,109,245,.12)
    }
    .score-box strong{font-size:38px;display:block;line-height:1}
    .score-box span{color:var(--muted)}
    .faq-list{display:grid;gap:12px}
    .faq-item{overflow:hidden}
    .faq-q{
      width:100%;border:0;background:transparent;padding:18px 18px;font-size:16px;font-weight:700;color:#1d2a42;
      display:flex;align-items:center;justify-content:space-between;gap:12px;cursor:pointer;text-align:left
    }
    .faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease;padding:0 18px;color:var(--muted);line-height:1.75}
    .faq-item.open .faq-a{max-height:180px;padding-bottom:18px}
    .faq-toggle{width:26px;height:26px;border-radius:999px;border:1px solid rgba(79,109,245,.16);display:grid;place-items:center;flex:0 0 auto;color:var(--brand)}
    .reviews,.articles,.cases,.pricing,.links-cloud{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .review-card,.case-card,.article-card,.pricing-card{padding:18px}
    .review-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:14px;color:var(--muted);font-size:13px}
    .form-wrap{padding:22px}
    form{display:grid;gap:14px}
    .form-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
    label{display:grid;gap:8px;font-size:14px;font-weight:700;color:#21304a}
    input,select,textarea{
      width:100%;border:1px solid rgba(60,78,120,.16);border-radius:14px;padding:13px 14px;font:inherit;color:#152033;background:#fff;
      outline:none;transition:.2s ease;
    }
    input:focus,select:focus,textarea:focus{border-color:rgba(79,109,245,.55);box-shadow:0 0 0 4px rgba(79,109,245,.10)}
    textarea{min-height:120px;resize:vertical}
    .footer{
      margin-top:22px;padding:24px 0 30px;background:#f3f7ff;border-top:1px solid rgba(60,78,120,.10);color:#24324a
    }
    .footer-grid{display:grid;grid-template-columns:1.1fr .9fr .9fr;gap:18px}
    .footer a{color:#20304d}
    .footer small,.footer p{color:#53647f;line-height:1.7}
    .floating{
      position:fixed;right:18px;bottom:18px;z-index:90;display:grid;gap:10px
    }
    .float-btn{
      width:48px;height:48px;border-radius:16px;display:grid;place-items:center;background:linear-gradient(135deg,var(--brand),var(--brand2));color:#fff;box-shadow:0 14px 28px rgba(79,109,245,.28)
    }
    .float-panel{
      width:320px;max-width:calc(100vw - 36px);padding:16px;border-radius:18px;background:#fff;border:1px solid rgba(60,78,120,.14);box-shadow:var(--shadow);display:none
    }
    .floating.open .float-panel{display:block}
    .float-panel img{width:100%;border-radius:14px;margin-top:10px}
    .backtop{position:fixed;left:18px;bottom:18px;z-index:90;opacity:0;pointer-events:none;transition:.25s}
    .backtop.show{opacity:1;pointer-events:auto}
    .backtop .btn{padding:12px 14px}
    .mobile-menu{display:none}
    .muted{color:var(--muted)}
    .badge-row{display:flex;flex-wrap:wrap;gap:8px}
    .pill{font-size:12px;padding:7px 10px;border-radius:999px;background:#f5f8ff;border:1px solid rgba(79,109,245,.12)}
    .news-list{display:grid;gap:10px}
    .news-list a{padding:14px 16px;border-radius:14px;background:#fff;border:1px solid rgba(60,78,120,.10);display:flex;justify-content:space-between;gap:12px}
    .news-list a:hover{box-shadow:var(--shadow2)}
    .anchor-offset{scroll-margin-top:92px}
    .image-banner{border-radius:20px;overflow:hidden;border:1px solid rgba(60,78,120,.12);box-shadow:var(--shadow)}
    .service-network{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
    .network-item{padding:16px;border-radius:16px;background:linear-gradient(180deg,#fff,#f8fbff);border:1px solid rgba(60,78,120,.10)}
    @media (max-width: 1024px){
      .hero-grid,.compare-top,.footer-grid,.grid-4,.grid-3,.reviews,.articles,.cases,.pricing,.links-cloud,.service-network,.flow{grid-template-columns:repeat(2,1fr)}
      .footer-grid{grid-template-columns:1fr}
    }
    @media (max-width: 760px){
      .navlinks,.nav-cta{display:none}
      .menu-btn{display:inline-flex}
      .mobile-menu{display:none;padding:0 0 16px}
      .mobile-menu.open{display:block}
      .mobile-menu .panel{display:grid;gap:10px;padding:14px;background:#fff;border:1px solid rgba(60,78,120,.12);border-radius:16px}
      .mobile-menu a{padding:10px 0;border-bottom:1px solid rgba(60,78,120,.08)}
      .hero-grid,.compare-top,.grid-4,.grid-3,.reviews,.articles,.cases,.pricing,.links-cloud,.form-grid,.service-network,.flow{grid-template-columns:1fr}
      .hero-main,.hero-side,.section-card,.compare-card,.form-wrap{padding:18px}
      h1{font-size:30px}
      .section-head{flex-direction:column;align-items:flex-start}
      .floating{right:12px;bottom:12px}
      .backtop{left:12px;bottom:12px}
      .float-panel{width:280px}
    }
    .reveal{opacity:0;transform:translateY(18px);transition:.55s ease}
    .reveal.in{opacity:1;transform:none}