:root{
      --bg:#f5f7fb;
      --panel:#ffffff;
      --panel-2:#eef4ff;
      --line:#dce4f2;
      --text:#1d2940;
      --muted:#5f6b84;
      --brand:#5b6cff;
      --brand-2:#00b8d9;
      --accent:#ff7a59;
      --soft:#f1f6ff;
      --shadow:0 14px 40px rgba(24,43,83,.10);
      --shadow-2:0 10px 24px rgba(91,108,255,.18);
      --radius:20px;
      --radius-sm:14px;
      --container:1180px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:Inter, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, sans-serif;
      color:var(--text);
      background:
        radial-gradient(circle at top left, rgba(91,108,255,.10), transparent 28%),
        radial-gradient(circle at top right, rgba(0,184,217,.09), transparent 24%),
        linear-gradient(180deg, #f8fbff 0%, #f5f7fb 26%, #f4f7fc 100%);
    }
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    .container{width:min(var(--container), calc(100% - 32px)); margin:0 auto}
    .site-header{
      position:sticky;top:0;z-index:50;
      backdrop-filter:blur(14px);
      background:rgba(245,247,251,.84);
      border-bottom:1px solid rgba(220,228,242,.72);
    }
    .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 img{width:42px;height:42px;object-fit:contain;border-radius:10px;background:#fff;box-shadow:0 8px 20px rgba(30,47,90,.08)}
    .brand strong{display:block;font-size:18px;line-height:1.1}
    .brand span{display:block;font-size:12px;color:var(--muted);margin-top:3px}
    .nav-actions{display:flex;align-items:center;gap:10px}
    .menu-toggle{
      display:none;border:1px solid var(--line);background:var(--panel);color:var(--text);
      border-radius:12px;padding:10px 12px;font-size:14px;cursor:pointer;
      box-shadow:0 8px 16px rgba(24,43,83,.06)
    }
    .nav-links{
      display:flex;flex-wrap:wrap;align-items:center;justify-content:flex-end;gap:10px
    }
    .nav-links a{
      font-size:13px;color:#31415f;padding:9px 11px;border-radius:999px;
      transition:.2s ease;background:transparent
    }
    .nav-links a:hover{background:#eaf1ff;color:#223252}
    .btn{
      display:inline-flex;align-items:center;justify-content:center;gap:8px;
      border-radius:999px;border:1px solid transparent;padding:12px 18px;
      font-weight:700;transition:.25s ease;cursor:pointer;white-space:nowrap
    }
    .btn-primary{background:linear-gradient(135deg,var(--brand),#7c4dff);color:#fff;box-shadow:var(--shadow-2)}
    .btn-primary:hover{transform:translateY(-2px);filter:saturate(1.05)}
    .btn-secondary{background:#fff;border-color:var(--line);color:var(--text)}
    .btn-secondary:hover{transform:translateY(-2px);box-shadow:var(--shadow)}
    .hero{
      padding:34px 0 18px;
    }
    .hero-wrap{
      display:grid;grid-template-columns:1.3fr .9fr;gap:22px;align-items:stretch;
    }
    .hero-main,.hero-side,.section-card,.panel{
      background:linear-gradient(180deg, rgba(255,255,255,.95), rgba(255,255,255,.92));
      border:1px solid rgba(220,228,242,.9);
      border-radius:var(--radius);
      box-shadow:var(--shadow);
    }
    .hero-main{
      padding:34px;
      position:relative;overflow:hidden;
      min-height:420px;
    }
    .hero-main:before,.hero-main:after{
      content:"";position:absolute;border-radius:50%;pointer-events:none
    }
    .hero-main:before{
      width:230px;height:230px;right:-70px;top:-80px;background:radial-gradient(circle, rgba(91,108,255,.16), transparent 68%);
      animation:float 10s ease-in-out infinite;
    }
    .hero-main:after{
      width:180px;height:180px;left:42%;bottom:-70px;background:radial-gradient(circle, rgba(0,184,217,.14), transparent 68%);
      animation:float 12s ease-in-out infinite reverse;
    }
    .eyebrow{
      display:inline-flex;align-items:center;gap:8px;
      padding:8px 12px;border-radius:999px;
      background:linear-gradient(135deg, #eef4ff, #edf9ff);
      color:#3650aa;font-size:13px;font-weight:700;border:1px solid #dbe6ff
    }
    h1{
      margin:18px 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:740px
    }
    .hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}
    .hero-points{
      display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:26px
    }
    .point{
      padding:14px 14px 16px;border-radius:16px;background:rgba(245,248,255,.95);border:1px solid #e2e9f5
    }
    .point b{display:block;font-size:18px;margin-bottom:6px}
    .point span{color:var(--muted);font-size:13px;line-height:1.6}
    .hero-side{padding:22px}
    .side-stat{
      padding:16px;border-radius:18px;background:linear-gradient(135deg,#f3f7ff,#eefbff);border:1px solid #dfe9fb;margin-bottom:12px
    }
    .side-stat small{display:block;color:#4c5a77}
    .side-stat strong{display:block;font-size:26px;margin-top:6px}
    .mini-list{display:grid;gap:10px;margin-top:14px}
    .mini-item{
      display:flex;gap:10px;align-items:flex-start;padding:12px;border-radius:14px;background:#fff;border:1px solid #edf1f8
    }
    .dot{width:10px;height:10px;border-radius:50%;margin-top:6px;background:linear-gradient(135deg,var(--brand),var(--brand-2))}
    section{padding:22px 0}
    .section-head{
      display:flex;justify-content:space-between;gap:14px;align-items:end;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}
    .grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
    .grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .card{
      background:var(--panel);border:1px solid rgba(220,228,242,.9);border-radius:18px;padding:18px;box-shadow:0 10px 28px rgba(24,43,83,.06);
      transition:.25s ease
    }
    .card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
    .metric strong{display:block;font-size:28px;margin-bottom:8px}
    .metric span{color:var(--muted);font-size:13px;line-height:1.65}
    .feature h3,.case h3,.review h3,.news h3{margin:0 0 10px;font-size:18px}
    .feature p,.case p,.review p,.news p{margin:0;color:var(--muted);line-height:1.75;font-size:14px}
    .tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
    .tag{
      padding:7px 10px;border-radius:999px;background:#f2f6ff;color:#39508b;font-size:12px;border:1px solid #dce6fb
    }
    .stack{display:grid;gap:12px}
    .process{
      display:grid;grid-template-columns:repeat(4,1fr);gap:14px
    }
    .step{
      position:relative;padding:18px;border-radius:18px;background:linear-gradient(180deg,#fff,#f8fbff);border:1px solid #dfe7f4
    }
    .step b{
      display:inline-flex;width:30px;height:30px;border-radius:10px;align-items:center;justify-content:center;
      background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#fff;margin-bottom:12px
    }
    .compare{
      overflow:auto;border-radius:18px;border:1px solid #dce4f2;background:#fff
    }
    table{width:100%;border-collapse:collapse;min-width:860px}
    th,td{padding:14px 16px;border-bottom:1px solid #ecf1f8;text-align:left;vertical-align:top}
    th{background:#f7faff;color:#2b3750;font-size:14px}
    td{color:#45546f;font-size:14px;line-height:1.7}
    .badge{
      display:inline-flex;padding:6px 10px;border-radius:999px;font-size:12px;font-weight:700
    }
    .badge.hot{background:#fff1ea;color:#b84c2b}
    .badge.ok{background:#edf9ff;color:#11738b}
    .rating{
      display:grid;grid-template-columns:1.1fr .9fr;gap:16px;align-items:stretch
    }
    .rating-box{
      background:linear-gradient(135deg,#101f4a,#273e89);
      color:#fff;border-radius:20px;padding:22px;box-shadow:var(--shadow-2)
    }
    .rating-box h3,.rating-box p{margin:0}
    .rating-box p{opacity:.88;line-height:1.8;margin-top:10px}
    .rating-meta{display:flex;gap:18px;flex-wrap:wrap;margin-top:16px}
    .rating-meta div{background:rgba(255,255,255,.09);padding:12px 14px;border-radius:14px}
    .contact-grid{display:grid;grid-template-columns:1fr .9fr;gap:16px}
    form{display:grid;gap:12px}
    .field-row{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
    input,select,textarea{
      width:100%;border:1px solid #d9e1ef;background:#fff;border-radius:14px;padding:13px 14px;
      font:inherit;color:var(--text);outline:none;transition:.2s ease
    }
    textarea{min-height:120px;resize:vertical}
    input:focus,select:focus,textarea:focus{border-color:#8da2ff;box-shadow:0 0 0 4px rgba(91,108,255,.10)}
    .faq{display:grid;gap:12px}
    details{
      background:#fff;border:1px solid #dce4f2;border-radius:16px;box-shadow:0 8px 20px rgba(24,43,83,.05);overflow:hidden
    }
    summary{
      cursor:pointer;list-style:none;padding:16px 18px;font-weight:700;color:#223252
    }
    summary::-webkit-details-marker{display:none}
    details p{margin:0;padding:0 18px 16px;color:var(--muted);line-height:1.8}
    .timeline{display:grid;gap:12px}
    .timeline-item{
      display:grid;grid-template-columns:80px 1fr;gap:14px;align-items:start;
      padding:16px;border-radius:16px;background:#fff;border:1px solid #dce4f2
    }
    .timeline-item strong{display:block;color:#24334e}
    .timeline-item span{display:block;color:var(--muted);line-height:1.7;font-size:14px}
    .media-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
    .media-card{
      overflow:hidden;border-radius:18px;border:1px solid #dce4f2;background:#fff
    }
    .media-card img{width:100%;height:auto;display:block}
    .media-card .caption{padding:14px 16px;color:var(--muted);line-height:1.7}
    .footer{
      padding:22px 0 90px;border-top:1px solid rgba(220,228,242,.85);margin-top:8px;background:rgba(246,249,253,.82)
    }
    .footer a{color:#2f55c6}
    .footer-top{display:grid;grid-template-columns:1.2fr .8fr 1fr;gap:16px;align-items:start}
    .footer small,.footer p,.footer li{color:var(--muted);line-height:1.8}
    .footer ul{margin:0;padding-left:18px}
    .floating{
      position:fixed;right:18px;bottom:18px;z-index:60;display:grid;gap:10px
    }
    .float-btn{
      display:inline-flex;align-items:center;justify-content:center;
      width:52px;height:52px;border-radius:16px;background:linear-gradient(135deg,var(--brand),#7c4dff);
      color:#fff;box-shadow:var(--shadow-2);font-weight:700
    }
    .customer{
      position:fixed;left:18px;bottom:18px;z-index:60;
      width:60px;height:60px;border-radius:18px;background:#fff;border:1px solid #dce4f2;box-shadow:var(--shadow);
      display:flex;align-items:center;justify-content:center;overflow:hidden
    }
    .customer img{width:100%;height:100%;object-fit:cover}
    .scroll-anim{opacity:0;transform:translateY(18px);transition:.6s ease}
    .scroll-anim.in{opacity:1;transform:none}
    .service-cloud{display:flex;flex-wrap:wrap;gap:10px}
    .cloud-item{
      padding:10px 12px;border-radius:999px;background:linear-gradient(135deg,#f4f7ff,#edf9ff);border:1px solid #dee8fb;color:#33456b;font-size:13px
    }
    .article-list{display:grid;gap:12px}
    .article-item{
      display:flex;justify-content:space-between;gap:12px;align-items:center;padding:14px 16px;border-radius:14px;background:#fff;border:1px solid #dce4f2
    }
    .article-item span{color:var(--muted);font-size:13px}
    .menu-panel{display:none}
    @keyframes float{50%{transform:translateY(10px)}}
    @media (max-width: 1024px){
      .hero-wrap,.grid-4,.process,.rating,.contact-grid,.footer-top,.media-grid{grid-template-columns:1fr}
      .hero-points,.grid-3{grid-template-columns:1fr 1fr}
    }
    @media (max-width: 860px){
      .menu-toggle{display:inline-flex}
      .nav{flex-wrap:wrap}
      .nav-links{
        display:none;flex-direction:column;align-items:stretch;width:100%;
        padding:10px;border:1px solid var(--line);border-radius:16px;background:#fff
      }
      .nav-links.open{display:flex}
      .nav-links a{padding:12px 14px;border-radius:12px}
      .field-row,.hero-points,.grid-3{grid-template-columns:1fr}
      .hero-main{padding:24px;min-height:auto}
      .section-head{flex-direction:column;align-items:start}
      h1{font-size:clamp(28px,8vw,42px)}
      .timeline-item{grid-template-columns:1fr}
    }