:root{
      --bg:#fff7f4;
      --bg2:#fffdfc;
      --card:#ffffff;
      --text:#1f2937;
      --muted:#5f6b7a;
      --line:#eadfd8;
      --brand:#ff4d5a;
      --brand2:#ff8a3d;
      --accent:#6b5cff;
      --shadow:0 14px 40px rgba(31,41,55,.08);
      --radius:22px;
      --container:1180px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;background:linear-gradient(180deg,#fff7f4 0%,#fffdfc 50%,#fff7f4 100%);color:var(--text)}
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    .container{width:min(var(--container),calc(100% - 32px));margin:0 auto}
    header{position:sticky;top:0;z-index:50;background:rgba(255,247,244,.84);backdrop-filter:saturate(140%) blur(14px);border-bottom:1px solid rgba(234,223,216,.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 img{width:42px;height:42px;object-fit:contain;border-radius:12px;background:#fff;box-shadow:0 8px 20px rgba(255,77,90,.12)}
    .brand strong{display:block;font-size:16px;line-height:1.2}
    .brand span{display:block;font-size:12px;color:var(--muted)}
    .nav-links{display:flex;align-items:center;gap:18px;flex-wrap:wrap;justify-content:flex-end}
    .nav-links a{font-size:14px;color:var(--muted)}
    .nav-links a:hover{color:var(--text)}
    .nav-cta{display:flex;align-items:center;gap:10px}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:0;border-radius:999px;padding:12px 18px;font-weight:700;cursor:pointer;transition:.25s ease;white-space:nowrap}
    .btn-primary{background:linear-gradient(135deg,var(--brand),var(--brand2));color:#fff;box-shadow:0 14px 28px rgba(255,77,90,.22)}
    .btn-secondary{background:#fff;border:1px solid var(--line);color:var(--text)}
    .btn:hover{transform:translateY(-2px);box-shadow:0 14px 30px rgba(31,41,55,.12)}
    .menu-btn{display:none;background:#fff;border:1px solid var(--line);border-radius:12px;padding:10px}
    .hero{position:relative;overflow:hidden;padding:38px 0 24px}
    .hero::before,.hero::after{content:"";position:absolute;border-radius:50%;pointer-events:none}
    .hero::before{width:420px;height:420px;right:-180px;top:-160px;background:radial-gradient(circle,rgba(255,77,90,.14),transparent 60%)}
    .hero::after{width:320px;height:320px;left:-140px;bottom:-120px;background:radial-gradient(circle,rgba(107,92,255,.12),transparent 58%)}
    .hero-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:22px;align-items:stretch}
    .hero-copy,.hero-panel{background:rgba(255,255,255,.72);border:1px solid rgba(234,223,216,.9);box-shadow:var(--shadow);border-radius:28px;overflow:hidden}
    .hero-copy{padding:34px}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;padding:8px 12px;border-radius:999px;background:#fff1ef;color:#d83a4a;font-size:13px;font-weight:700;margin-bottom:16px}
    h1{margin:0 0 14px;font-size:clamp(30px,5vw,52px);line-height:1.06;letter-spacing:-.03em}
    .hero p{margin:0;color:var(--muted);font-size:16px;line-height:1.8}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin:24px 0 18px}
    .hero-points{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:18px}
    .mini-stat{background:#fff;border:1px solid var(--line);border-radius:18px;padding:14px}
    .mini-stat b{display:block;font-size:18px}
    .mini-stat span{font-size:12px;color:var(--muted)}
    .hero-panel{padding:24px}
    .panel-card{background:linear-gradient(180deg,#fff,#fff7f4);border:1px solid var(--line);border-radius:22px;padding:18px;margin-bottom:14px}
    .panel-card h3{margin:0 0 8px;font-size:16px}
    .panel-card p{margin:0;color:var(--muted);font-size:14px;line-height:1.7}
    .tags{display:flex;flex-wrap:wrap;gap:10px}
    .tag{padding:9px 12px;border-radius:999px;background:#fff;border:1px solid var(--line);font-size:13px;color:#3b4552}
    section{padding:22px 0}
    .section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:14px;margin-bottom:16px}
    .section-head h2{margin:0;font-size:28px;line-height:1.15}
    .section-head p{margin:0;color:var(--muted);max-width:700px;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}
    .grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
    .card{background:rgba(255,255,255,.9);border:1px solid var(--line);border-radius:24px;padding:20px;box-shadow:0 10px 24px rgba(31,41,55,.04);transition:.25s ease}
    .card:hover{transform:translateY(-4px);box-shadow:0 18px 34px rgba(31,41,55,.09)}
    .card h3{margin:0 0 10px;font-size:18px}
    .card p{margin:0;color:var(--muted);line-height:1.75}
    .stat strong{display:block;font-size:30px;line-height:1;margin-bottom:8px;color:#101828}
    .stat small{color:var(--muted)}
    .workflow{display:grid;grid-template-columns:repeat(5,1fr);gap:14px}
    .step{position:relative;background:#fff;border:1px solid var(--line);border-radius:22px;padding:18px}
    .step .num{display:inline-flex;width:32px;height:32px;align-items:center;justify-content:center;border-radius:50%;background:linear-gradient(135deg,var(--brand),var(--brand2));color:#fff;font-weight:800;margin-bottom:12px}
    .step h3{margin-bottom:8px}
    .table-wrap{overflow:auto;background:#fff;border:1px solid var(--line);border-radius:24px;box-shadow:var(--shadow)}
    table{width:100%;border-collapse:collapse;min-width:900px}
    th,td{padding:16px 18px;border-bottom:1px solid #f0e6df;text-align:left;vertical-align:top}
    th{background:#fff7f4;font-size:14px}
    .badge{display:inline-flex;align-items:center;gap:6px;padding:7px 10px;border-radius:999px;background:#f5f7ff;color:#4438ca;font-size:12px;font-weight:700}
    details{background:#fff;border:1px solid var(--line);border-radius:18px;padding:16px 18px}
    details+details{margin-top:12px}
    summary{cursor:pointer;font-weight:700;list-style:none}
    summary::-webkit-details-marker{display:none}
    .reviews{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .review{background:#fff;border:1px solid var(--line);border-radius:22px;padding:20px}
    .review .meta{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:10px}
    .stars{color:#ff9a1f;letter-spacing:2px}
    .case-list,.article-list{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .case-thumb{border-radius:18px;overflow:hidden;background:#f5efe9;margin-bottom:12px}
    .case-thumb img{width:100%;height:auto}
    .article-item{display:flex;flex-direction:column;gap:10px}
    .form{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
    .field{display:flex;flex-direction:column;gap:8px}
    label{font-size:14px;font-weight:700}
    input,select,textarea{width:100%;border:1px solid var(--line);border-radius:14px;background:#fff;padding:13px 14px;font:inherit;color:var(--text);outline:none}
    textarea{min-height:120px;resize:vertical}
    input:focus,select:focus,textarea:focus{border-color:#ff9a8e;box-shadow:0 0 0 4px rgba(255,77,90,.08)}
    .form .full{grid-column:1/-1}
    .support{display:grid;grid-template-columns:1.1fr .9fr;gap:16px;align-items:start}
    .floating{position:fixed;right:16px;bottom:18px;z-index:60;display:flex;flex-direction:column;gap:10px}
    .float-btn{display:inline-flex;align-items:center;justify-content:center;min-width:48px;height:48px;padding:0 14px;border-radius:999px;background:linear-gradient(135deg,var(--brand),var(--brand2));color:#fff;box-shadow:0 12px 22px rgba(255,77,90,.2);font-weight:800}
    footer{margin-top:8px;background:#1f2430;color:#e9edf3;padding:26px 0 18px}
    footer a{color:#ffd6d1}
    .footer-grid{display:grid;grid-template-columns:1.2fr .8fr .9fr;gap:18px}
    .footer-grid p,.footer-grid li{color:#c9d0da;line-height:1.75}
    .footer-grid ul{margin:0;padding:0;list-style:none}
    .mobile-only{display:none}
    .scroll-enter{opacity:0;transform:translateY(18px);transition:.55s ease}
    .scroll-enter.in{opacity:1;transform:none}
    @media (max-width: 1024px){
      .hero-grid,.grid-4,.workflow,.reviews,.case-list,.article-list,.support,.footer-grid{grid-template-columns:1fr 1fr}
      .grid-3{grid-template-columns:1fr 1fr}
    }
    @media (max-width: 780px){
      .nav-links,.nav-cta{display:none}
      .menu-btn{display:inline-flex}
      .mobile-only{display:block}
      .hero-grid,.grid-4,.grid-3,.grid-2,.workflow,.reviews,.case-list,.article-list,.support,.footer-grid,.form{grid-template-columns:1fr}
      .hero-copy{padding:24px}
      .hero-points{grid-template-columns:1fr}
      .section-head{align-items:flex-start;flex-direction:column}
      .floating{right:12px;bottom:12px}
      .nav.open .nav-links,.nav.open .nav-cta{display:flex}
      .nav.open{align-items:flex-start;flex-direction:column}
      .nav.open .nav-links{width:100%;justify-content:flex-start;gap:12px;padding:10px 0 2px}
      .nav.open .nav-cta{display:flex;width:100%;padding-bottom:8px}
      .nav.open .nav-cta .btn{flex:1}
    }