:root{
      --bg:#f7f6f2;
      --bg2:#eef4ff;
      --card:#ffffff;
      --text:#1f2937;
      --muted:#5f6b7a;
      --line:#dde3ee;
      --primary:#2b6dff;
      --primary2:#7c4dff;
      --accent:#ff6f91;
      --accent2:#20b7a8;
      --shadow:0 18px 40px rgba(31,41,55,.08);
      --shadow2:0 10px 24px rgba(43,109,255,.12);
      --radius:22px;
      --radius2:16px;
      --max:1180px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family: system-ui,-apple-system,"PingFang SC","Microsoft YaHei",Arial,sans-serif;
      color:var(--text);
      background:
        radial-gradient(circle at 15% 10%, rgba(43,109,255,.10), transparent 28%),
        radial-gradient(circle at 88% 12%, rgba(255,111,145,.12), transparent 24%),
        radial-gradient(circle at 78% 78%, rgba(124,77,255,.10), transparent 26%),
        linear-gradient(180deg, #ffffff 0%, #f7f8fc 26%, var(--bg) 100%);
    }
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    .container{width:min(100% - 32px, var(--max));margin:0 auto}
    .skip{position:absolute;left:-9999px;top:auto}
    .skip:focus{left:16px;top:16px;background:#fff;padding:10px 14px;border-radius:10px;z-index:9999;box-shadow:var(--shadow)}
    header{
      position:sticky;top:0;z-index:50;
      backdrop-filter:blur(14px);
      background:rgba(247,246,242,.82);
      border-bottom:1px solid rgba(221,227,238,.8);
    }
    .topbar{
      display:flex;align-items:center;justify-content:space-between;gap:18px;
      padding:14px 0;
    }
    .brand{display:flex;align-items:center;gap:12px;min-width:0}
    .brand .logo-wrap{
      width:42px;height:42px;border-radius:14px;background:linear-gradient(135deg,#fff,#eaf1ff);
      border:1px solid var(--line);display:grid;place-items:center;box-shadow:0 8px 20px rgba(43,109,255,.08);overflow:hidden;
    }
    .brand h1,.brand strong{font-size:16px;line-height:1.1;margin:0}
    .brand p{margin:4px 0 0;color:var(--muted);font-size:12px}
    .nav{display:flex;align-items:center;gap:14px;flex-wrap:wrap;justify-content:flex-end}
    .nav a{font-size:14px;color:#304156;padding:8px 0;opacity:.9}
    .nav a:hover{color:var(--primary)}
    .menu-btn{
      display:none;border:1px solid var(--line);background:#fff;border-radius:12px;padding:10px 12px;color:var(--text)
    }
    .hero{
      padding:38px 0 18px;
    }
    .hero-grid{
      display:grid;grid-template-columns:1.12fr .88fr;gap:22px;align-items:stretch;
    }
    .hero-main,.hero-side,.panel,.card,.table-card,.faq-item,.form-card,.article-item,.review,.step,.metric,.price-card{
      background:rgba(255,255,255,.88);border:1px solid rgba(221,227,238,.95);border-radius:var(--radius);box-shadow:var(--shadow);
    }
    .hero-main{padding:30px;position:relative;overflow:hidden}
    .hero-main:before,.hero-main:after{
      content:"";position:absolute;border-radius:999px;filter:blur(2px);pointer-events:none;
    }
    .hero-main:before{right:-40px;top:-30px;width:180px;height:180px;background:radial-gradient(circle, rgba(43,109,255,.18), transparent 65%)}
    .hero-main:after{left:48%;bottom:-50px;width:220px;height:220px;background:radial-gradient(circle, rgba(255,111,145,.14), transparent 66%)}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;padding:8px 12px;border-radius:999px;background:linear-gradient(135deg, rgba(43,109,255,.12), rgba(255,111,145,.10));color:#244070;font-size:13px;font-weight:700}
    .hero h2{font-size:clamp(32px,4vw,52px);line-height:1.05;margin:16px 0 14px;letter-spacing:-.02em}
    .hero p{margin:0;color:var(--muted);font-size:16px;line-height:1.8;max-width:62ch}
    .cta-row{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;font-size:15px;
      transition:.25s ease;cursor:pointer;
    }
    .btn-primary{background:linear-gradient(135deg,var(--primary),var(--primary2));color:#fff;box-shadow:var(--shadow2)}
    .btn-secondary{background:#fff;color:#22314b;border-color:var(--line)}
    .btn:hover{transform:translateY(-2px)}
    .hero-meta{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:24px}
    .metric{padding:16px;border-radius:18px}
    .metric strong{display:block;font-size:22px}
    .metric span{display:block;margin-top:6px;color:var(--muted);font-size:13px;line-height:1.5}
    .hero-side{padding:22px;display:grid;gap:14px}
    .side-list{display:grid;gap:10px}
    .side-pill{display:flex;justify-content:space-between;gap:12px;padding:12px 14px;border-radius:14px;background:linear-gradient(135deg,#f7faff,#fef8fb);border:1px solid #e7ecf7;font-size:14px;color:#334155}
    .side-pill b{color:#13233a}
    .section{padding:22px 0}
    .section h3{font-size:28px;margin:0 0 10px}
    .section .lead{margin:0 0 20px;color:var(--muted);line-height:1.8}
    .grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
    .card{padding:20px}
    .card h4{margin:10px 0 8px;font-size:18px}
    .card p,.card li{color:var(--muted);line-height:1.75}
    .badge{display:inline-flex;align-items:center;gap:6px;padding:7px 10px;border-radius:999px;background:#eef4ff;color:#2650b8;font-size:12px;font-weight:700}
    .tag-cloud{display:flex;flex-wrap:wrap;gap:10px}
    .tag{padding:10px 12px;border-radius:999px;background:#fff;border:1px solid var(--line);color:#334155;font-size:13px;box-shadow:0 6px 16px rgba(31,41,55,.04)}
    .timeline,.steps{display:grid;gap:14px}
    .step{padding:18px}
    .step strong{display:block;font-size:16px;margin-bottom:8px}
    .compare{width:100%;border-collapse:separate;border-spacing:0;overflow:hidden}
    .table-wrap{overflow-x:auto}
    table{width:100%;min-width:760px;border-collapse:separate;border-spacing:0}
    th,td{padding:14px 16px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}
    th{background:#f5f8ff;color:#24364f;font-size:14px}
    td{background:#fff;color:#314157;font-size:14px}
    tr:last-child td{border-bottom:none}
    .stars{color:#f59e0b;font-size:18px;letter-spacing:2px}
    .review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .review small{color:var(--muted)}
    .review p{margin:10px 0 0;color:#364152;line-height:1.8}
    .article-list{display:grid;gap:12px}
    .article-item{display:flex;justify-content:space-between;gap:14px;padding:16px 18px;align-items:center}
    .article-item span{color:var(--muted);font-size:13px}
    .faq{display:grid;gap:12px}
    .faq-item{padding:4px 18px}
    .faq-q{display:flex;justify-content:space-between;gap:16px;align-items:center;padding:16px 0;cursor:pointer;font-weight:700}
    .faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease, padding .28s ease;color:var(--muted);line-height:1.8;padding:0}
    .faq-item.open .faq-a{max-height:220px;padding:0 0 16px}
    .faq-icon{width:22px;height:22px;display:grid;place-items:center;border-radius:50%;background:#eef4ff;color:#2b6dff;flex:none}
    .form-card{padding:22px}
    form{display:grid;gap:14px}
    .fields{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
    label{display:block;font-size:13px;color:#324155;font-weight:700;margin-bottom:8px}
    input,select,textarea{
      width:100%;padding:13px 14px;border:1px solid var(--line);border-radius:14px;background:#fff;color:var(--text);
      font:inherit;outline:none;transition:border-color .2s,box-shadow .2s;
    }
    textarea{min-height:120px;resize:vertical}
    input:focus,select:focus,textarea:focus{border-color:rgba(43,109,255,.65);box-shadow:0 0 0 4px rgba(43,109,255,.10)}
    .split{display:grid;grid-template-columns:1fr .88fr;gap:16px;align-items:start}
    .mini-image-list{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
    .mini-image-list img,.showcase img,.kefu img{width:100%;border-radius:18px;border:1px solid var(--line);background:#fff}
    .showcase{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
    .footer-links{display:flex;flex-wrap:wrap;gap:10px}
    .footer-links a{padding:9px 11px;border-radius:999px;background:#fff;border:1px solid var(--line);font-size:13px;color:#314157}
    footer{margin-top:22px;padding:22px 0 28px;border-top:1px solid var(--line);background:#f7f8fc;color:#22314b}
    .footer-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:18px}
    .copyright{margin-top:14px;color:#5f6b7a;font-size:13px;line-height:1.8}
    .floating{
      position:fixed;right:16px;bottom:16px;z-index:60;display:grid;gap:10px
    }
    .float-btn{
      width:52px;height:52px;border-radius:16px;background:linear-gradient(135deg,var(--primary),var(--primary2));
      color:#fff;display:grid;place-items:center;box-shadow:var(--shadow2);border:none;cursor:pointer
    }
    .backtop{display:none}
    .kefu{
      position:fixed;left:16px;bottom:16px;z-index:60;
      background:rgba(255,255,255,.96);border:1px solid var(--line);border-radius:18px;padding:12px;box-shadow:var(--shadow);width:160px
    }
    .kefu p{margin:8px 0 0;font-size:12px;color:var(--muted);line-height:1.6}
    .section-anchor{scroll-margin-top:92px}
    .muted{color:var(--muted)}
    .hero-side .panel{padding:18px}
    .panel h4{margin:0 0 10px}
    .nav-panel{display:none}
    @media (max-width: 980px){
      .hero-grid,.split,.footer-grid,.grid-3,.review-grid,.grid-2{grid-template-columns:1fr}
      .showcase,.mini-image-list,.fields,.hero-meta{grid-template-columns:1fr 1fr}
      .nav{display:none}
      .menu-btn{display:inline-flex}
      .nav-panel{
        display:none;padding:0 0 14px
      }
      .nav-panel.open{display:block}
      .nav-panel .nav{
        display:flex;flex-direction:column;align-items:flex-start;gap:8px;padding:12px 0 0
      }
      .topbar{flex-wrap:wrap}
    }
    @media (max-width: 640px){
      .container{width:min(100% - 22px, var(--max))}
      .hero{padding-top:24px}
      .hero-main,.hero-side,.card,.form-card{padding:18px}
      .hero-meta,.showcase,.mini-image-list,.fields{grid-template-columns:1fr}
      .article-item{flex-direction:column;align-items:flex-start}
      .kefu{width:138px}
    }
    .reveal{opacity:0;transform:translateY(14px);transition:all .6s ease}
    .reveal.in{opacity:1;transform:none}