:root{
      --bg:#f4f7ff;
      --bg2:#eef4ff;
      --card:#ffffff;
      --text:#14213d;
      --muted:#5b6780;
      --primary:#0b4dff;
      --primary2:#1b77ff;
      --accent:#00a3ff;
      --line:#dbe4ff;
      --shadow:0 18px 40px rgba(15, 52, 120, .10);
      --shadow2:0 10px 28px rgba(11, 77, 255, .12);
      --radius:22px;
      --container:1180px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:Inter, "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
      color:var(--text);
      background:
        radial-gradient(circle at top left, rgba(11,77,255,.08), transparent 30%),
        radial-gradient(circle at top right, rgba(0,163,255,.08), transparent 24%),
        linear-gradient(180deg, #ffffff 0%, var(--bg) 100%);
    }
    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:60;
      backdrop-filter:saturate(180%) blur(14px);
      background:rgba(244,247,255,.82);
      border-bottom:1px solid rgba(219,228,255,.8);
    }
    .nav{
      display:flex;align-items:center;justify-content:space-between;gap:16px;
      min-height:78px;
    }
    .brand{display:flex;align-items:center;gap:12px;font-weight:800}
    .brand .name{font-size:1.08rem;letter-spacing:.5px}
    .brand img{width:44px;height:44px;object-fit:contain;border-radius:12px;background:#fff;box-shadow:0 8px 20px rgba(11,77,255,.08)}
    .menu{display:flex;align-items:center;gap:18px;flex-wrap:wrap;justify-content:flex-end}
    .menu a{font-size:.95rem;color:var(--muted);padding:10px 0;position:relative;white-space:nowrap}
    .menu a::after{content:"";position:absolute;left:0;bottom:4px;width:0;height:2px;background:var(--primary);transition:.22s ease}
    .menu a:hover{color:var(--text)}
    .menu a:hover::after{width:100%}
    .nav-actions{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;cursor:pointer;transition:.22s ease;
      box-shadow:none;
    }
    .btn-primary{background:linear-gradient(135deg,var(--primary),var(--primary2));color:#fff;box-shadow:var(--shadow2)}
    .btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 30px rgba(11,77,255,.22)}
    .btn-ghost{background:#fff;color:var(--primary);border-color:rgba(11,77,255,.16)}
    .btn-ghost:hover{transform:translateY(-2px);box-shadow:var(--shadow)}
    .mobile-toggle{display:none;background:#fff;border:1px solid var(--line);width:46px;height:46px;border-radius:14px}
    .mobile-toggle span{display:block;width:18px;height:2px;background:var(--text);margin:4px auto;border-radius:2px}
    .mobile-panel{display:none;padding:0 0 18px}
    .mobile-panel .menu{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}
    .mobile-panel .menu a{background:#fff;border:1px solid var(--line);border-radius:14px;padding:11px 12px;text-align:center}
    main{padding-bottom:18px}
    section{padding:22px 0}
    .hero{
      padding:28px 0 12px;
    }
    .hero-grid{
      display:grid;grid-template-columns:1.25fr .75fr;gap:22px;align-items:stretch;
    }
    .hero-card,.panel,.card,.stat,.review,.article,.faq-item,.form-card,.timeline-card,.price-card,.compare-card,.help-card{
      background:var(--card);border:1px solid rgba(219,228,255,.92);border-radius:var(--radius);box-shadow:var(--shadow)
    }
    .hero-card{padding:30px;overflow:hidden;position:relative}
    .hero-card::before,.hero-card::after{
      content:"";position:absolute;border-radius:999px;pointer-events:none;
      background:linear-gradient(135deg, rgba(11,77,255,.12), rgba(0,163,255,.06));
    }
    .hero-card::before{width:240px;height:240px;right:-110px;top:-90px}
    .hero-card::after{width:160px;height:160px;right:90px;bottom:-80px}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;padding:8px 14px;border-radius:999px;background:rgba(11,77,255,.08);color:var(--primary);font-weight:700;font-size:.92rem}
    h1{font-size:clamp(2rem,5vw,3.55rem);line-height:1.08;margin:16px 0 14px;letter-spacing:-.02em}
    .lead{font-size:1.03rem;line-height:1.85;color:var(--muted);max-width:64ch}
    .hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin:24px 0 22px}
    .mini-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:10px}
    .mini-tags span,.tag{
      background:#f6f9ff;border:1px solid var(--line);color:#26406b;
      padding:8px 12px;border-radius:999px;font-size:.92rem
    }
    .hero-side{
      display:grid;gap:14px;
    }
    .info-box{padding:22px}
    .info-box h3{margin:0 0 10px;font-size:1.08rem}
    .info-box p,.info-box li{color:var(--muted);line-height:1.72}
    .info-box ul{margin:10px 0 0;padding-left:18px}
    .stats{
      display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px
    }
    .stat{padding:20px}
    .stat strong{display:block;font-size:1.65rem;color:var(--primary);margin-bottom:8px}
    .stat span{color:var(--muted);line-height:1.5}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:16px;margin-bottom:16px}
    .section-head h2{margin:0;font-size:1.72rem}
    .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{padding:22px}
    .card h3{margin:0 0 10px;font-size:1.1rem}
    .card p,.card li{color:var(--muted);line-height:1.75}
    .feature-list{display:grid;gap:12px;margin-top:14px}
    .feature-item{display:flex;gap:12px;align-items:flex-start;padding:14px;border-radius:16px;background:#f8faff;border:1px solid #e8efff}
    .dot{width:10px;height:10px;border-radius:50%;background:linear-gradient(135deg,var(--primary),var(--accent));margin-top:7px;flex:none}
    .workflow{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}
    .step{padding:20px;position:relative}
    .step .num{font-size:1.05rem;font-weight:800;color:var(--primary);margin-bottom:10px}
    .step:not(:last-child)::after{content:"";position:absolute;top:28px;right:-7px;width:14px;height:14px;border-top:2px solid var(--line);border-right:2px solid var(--line);transform:rotate(45deg)}
    .table-wrap{overflow:auto;border-radius:22px;border:1px solid var(--line);background:#fff;box-shadow:var(--shadow)}
    table{width:100%;border-collapse:collapse;min-width:820px}
    th,td{padding:16px 14px;border-bottom:1px solid #edf2ff;text-align:left;vertical-align:top}
    th{background:#f6f9ff;color:#17315f}
    td{color:var(--muted)}
    .rating{
      display:grid;grid-template-columns:1fr 1fr;gap:16px;align-items:stretch
    }
    .rating-card{padding:24px}
    .score{font-size:3rem;font-weight:900;line-height:1;color:var(--primary)}
    .stars{color:#ffb400;font-size:1.2rem;letter-spacing:2px;margin-top:8px}
    .badge-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px}
    .price-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
    .price-card{padding:22px}
    .price-card .price{font-size:1.8rem;font-weight:900;color:var(--primary);margin:10px 0}
    .compare-card,.timeline-card,.help-card{padding:22px}
    .timeline{display:grid;gap:14px}
    .timeline-item{display:grid;grid-template-columns:auto 1fr;gap:14px;align-items:flex-start}
    .timeline-item .tmark{width:14px;height:14px;border-radius:50%;background:linear-gradient(135deg,var(--primary),var(--accent));margin-top:6px;box-shadow:0 0 0 5px rgba(11,77,255,.08)}
    .reviews{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
    .review{padding:22px}
    .review .role{color:var(--primary);font-weight:700;margin-bottom:8px}
    .review .quote{color:var(--muted);line-height:1.8}
    .case-grid,.article-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
    .case,.article{padding:0;overflow:hidden}
    .case .inner,.article .inner{padding:20px}
    .media-row{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
    .media-box{background:#fff;border:1px solid var(--line);border-radius:20px;padding:14px;box-shadow:var(--shadow)}
    .media-box img{width:100%;border-radius:14px;object-fit:cover}
    .tag-cloud{display:flex;flex-wrap:wrap;gap:10px}
    .form-card{padding:24px}
    form{display:grid;gap:14px}
    .form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
    label{display:grid;gap:8px;font-weight:700;color:#19315d}
    input,select,textarea{
      width:100%;border:1px solid #d7e0f7;background:#fbfcff;border-radius:16px;
      padding:14px 15px;font:inherit;color:var(--text);outline:none;transition:.2s ease
    }
    input:focus,select:focus,textarea:focus{border-color:rgba(11,77,255,.55);box-shadow:0 0 0 4px rgba(11,77,255,.10)}
    textarea{min-height:128px;resize:vertical}
    .faq-list{display:grid;gap:12px}
    .faq-item{overflow:hidden}
    .faq-q{
      width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
      padding:18px 20px;background:transparent;border:0;color:var(--text);font:inherit;font-weight:800;cursor:pointer;text-align:left
    }
    .faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease;padding:0 20px}
    .faq-a p{margin:0 0 18px;color:var(--muted);line-height:1.8}
    .faq-item.open .faq-a{max-height:220px}
    .faq-item.open .chev{transform:rotate(180deg)}
    .chev{transition:.22s ease;color:var(--primary)}
    .help-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
    .footer-top{
      background:linear-gradient(135deg,#0b4dff,#1769ff 55%, #0d8fff);
      color:#fff;margin-top:24px
    }
    .footer-top .container{padding:28px 0}
    .footer-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:18px;align-items:start}
    .footer-card{background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.18);border-radius:22px;padding:22px}
    .footer-card a{color:#fff;text-decoration:underline;text-underline-offset:3px}
    footer{
      background:#081935;color:#dbe7ff;border-top:1px solid rgba(255,255,255,.08)
    }
    footer .container{padding:16px 0}
    footer a{color:#fff}
    .floating{
      position:fixed;right:18px;bottom:18px;z-index:70;display:grid;gap:10px
    }
    .float-btn{
      width:52px;height:52px;border-radius:16px;display:grid;place-items:center;
      background:linear-gradient(135deg,var(--primary),var(--accent));color:#fff;box-shadow:var(--shadow2)
    }
    .float-btn:hover{transform:translateY(-2px)}
    .qc{
      position:fixed;left:18px;bottom:18px;z-index:70;max-width:210px;background:#fff;border:1px solid var(--line);
      border-radius:20px;padding:12px;box-shadow:var(--shadow)
    }
    .qc img{border-radius:14px}
    .small{font-size:.92rem;color:var(--muted)}
    .divider{height:1px;background:linear-gradient(90deg,transparent,rgba(11,77,255,.18),transparent);margin:12px 0}
    .scroll-anim{opacity:0;transform:translateY(18px);transition:.55s ease}
    .scroll-anim.in{opacity:1;transform:none}
    .topline{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin-top:14px}
    .topline .tag{background:linear-gradient(135deg,#fff,#f4f8ff)}
    .nav-home{color:var(--primary);font-weight:800}
    @media (max-width: 1024px){
      .hero-grid,.grid-3,.grid-2,.reviews,.case-grid,.article-grid,.price-grid,.footer-grid,.help-grid,.rating,.stats,.workflow,.media-row{grid-template-columns:1fr 1fr}
      .workflow{grid-template-columns:1fr 1fr}
      .hero-card{padding:24px}
      .step:not(:last-child)::after{display:none}
    }
    @media (max-width: 760px){
      .menu,.nav-actions{display:none}
      .mobile-toggle{display:inline-grid;place-items:center}
      .mobile-panel.open{display:block}
      .hero-grid,.grid-3,.grid-2,.reviews,.case-grid,.article-grid,.price-grid,.footer-grid,.help-grid,.rating,.stats,.workflow,.media-row,.form-grid{grid-template-columns:1fr}
      .hero{padding-top:18px}
      h1{font-size:clamp(1.9rem,10vw,2.6rem)}
      .section-head{flex-direction:column;align-items:flex-start}
      .qc{max-width:160px}
      .container{width:min(var(--container), calc(100% - 24px))}
    }