:root{
      --bg:#fffaf4;
      --bg2:#fff2e3;
      --card:#ffffff;
      --text:#1f2430;
      --muted:#5f6778;
      --line:#e9dfd1;
      --brand:#ff4d4f;
      --brand2:#ff9f1c;
      --brand3:#4c7dff;
      --shadow:0 18px 40px rgba(42,52,74,.10);
      --radius:20px;
      --radius2:28px;
      --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;color:var(--text);background:
      radial-gradient(circle at top left, rgba(255,159,28,.16), transparent 28%),
      radial-gradient(circle at top right, rgba(76,125,255,.14), transparent 25%),
      linear-gradient(180deg, #fffdf9 0%, var(--bg) 32%, #fff 100%);
      line-height:1.7}
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    .container{width:min(100% - 32px, var(--container));margin:0 auto}
    header{position:sticky;top:0;z-index:50;background:rgba(255,250,244,.86);backdrop-filter:blur(18px);border-bottom:1px solid rgba(233,223,209,.7)}
    .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 10px 22px rgba(0,0,0,.06)}
    .brand .text{min-width:0}
    .brand strong{display:block;font-size:16px;line-height:1.2}
    .brand span{display:block;font-size:12px;color:var(--muted)}
    .nav-toggle{display:none;border:1px solid var(--line);background:#fff;border-radius:12px;padding:10px 12px;color:var(--text)}
    .nav-links{display:flex;align-items:center;gap:18px;flex-wrap:wrap;justify-content:flex-end}
    .nav-links a{font-size:14px;color:#2c3444;padding:8px 0;position:relative}
    .nav-links a::after{content:"";position:absolute;left:0;bottom:0;width:0;height:2px;background:linear-gradient(90deg,var(--brand),var(--brand2));transition:.25s}
    .nav-links a:hover::after{width:100%}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:none;border-radius:999px;padding:13px 18px;font-weight:700;cursor:pointer;transition:.25s;box-shadow:0 12px 24px rgba(255,77,79,.16)}
    .btn-primary{background:linear-gradient(135deg,var(--brand) 0%, var(--brand2) 100%);color:#fff}
    .btn-ghost{background:#fff;border:1px solid var(--line);color:var(--text);box-shadow:none}
    .btn:hover{transform:translateY(-2px)}
    main{padding-bottom:18px}
    section{padding:56px 0}
    .hero{padding:34px 0 30px}
    .hero-shell{display:grid;grid-template-columns:1.15fr .85fr;gap:24px;align-items:stretch}
    .hero-copy{background:linear-gradient(145deg, rgba(255,255,255,.92), rgba(255,245,232,.92));border:1px solid rgba(233,223,209,.9);border-radius:var(--radius2);padding:34px;box-shadow:var(--shadow);position:relative;overflow:hidden}
    .hero-copy::before{content:"";position:absolute;inset:auto -120px -120px auto;width:260px;height:260px;background:radial-gradient(circle, rgba(255,77,79,.18), transparent 65%);border-radius:50%}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;color:#b84316;background:#fff3e8;border:1px solid #ffd6bb;padding:7px 12px;border-radius:999px}
    h1{margin:18px 0 12px;font-size:clamp(30px, 5vw, 54px);line-height:1.08;letter-spacing:-.03em}
    .lead{font-size:16px;color:var(--muted);max-width:60ch;margin:0 0 22px}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:22px}
    .mini-stats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}
    .stat{background:#fff;border:1px solid var(--line);border-radius:18px;padding:16px 14px}
    .stat strong{display:block;font-size:22px;line-height:1;color:#151922}
    .stat span{display:block;margin-top:6px;font-size:13px;color:var(--muted)}
    .hero-panel{display:grid;gap:14px}
    .glass{background:linear-gradient(160deg, rgba(255,255,255,.96), rgba(255,240,222,.92));border:1px solid rgba(233,223,209,.95);border-radius:var(--radius2);padding:22px;box-shadow:var(--shadow)}
    .tool-tags{display:flex;flex-wrap:wrap;gap:10px}
    .tag{padding:8px 12px;border-radius:999px;background:#fff;border:1px solid var(--line);font-size:13px;color:#334}
    .grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}
    .card{background:var(--card);border:1px solid var(--line);border-radius:22px;padding:22px;box-shadow:0 14px 30px rgba(36,42,58,.06);transition:transform .25s, box-shadow .25s}
    .card:hover{transform:translateY(-4px);box-shadow:0 20px 42px rgba(36,42,58,.10)}
    .card h3,.card h2{margin:0 0 10px}
    .card p{margin:0;color:var(--muted)}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:16px;margin-bottom:20px}
    .section-head h2{margin:0;font-size:clamp(24px,3vw,36px);line-height:1.15}
    .section-head p{margin:0;color:var(--muted);max-width:62ch}
    .chip-row{display:flex;flex-wrap:wrap;gap:10px}
    .chip{background:#fff;border:1px solid var(--line);border-radius:999px;padding:8px 12px;font-size:13px;color:#314}
    .split{display:grid;grid-template-columns:1fr 1fr;gap:20px;align-items:start}
    .steps{display:grid;gap:14px}
    .step{display:flex;gap:14px;align-items:flex-start;padding:18px;border-radius:20px;background:#fff;border:1px solid var(--line)}
    .step b{flex:0 0 34px;width:34px;height:34px;border-radius:12px;display:grid;place-items:center;background:linear-gradient(135deg,var(--brand3),#77a6ff);color:#fff}
    .table-wrap{overflow-x:auto;border-radius:22px;border:1px solid var(--line);background:#fff;box-shadow:var(--shadow)}
    table{width:100%;border-collapse:collapse;min-width:760px}
    th,td{padding:16px 14px;text-align:left;border-bottom:1px solid #efe7dd;font-size:14px;vertical-align:top}
    th{background:#fff6eb;color:#2a3242}
    tr:last-child td{border-bottom:none}
    .rating{display:flex;flex-wrap:wrap;gap:14px}
    .rating .big{font-size:44px;font-weight:900;line-height:1;background:linear-gradient(135deg,var(--brand),var(--brand2));-webkit-background-clip:text;background-clip:text;color:transparent}
    .review-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
    .review{padding:22px;border-radius:22px;background:#fff;border:1px solid var(--line)}
    .review .meta{display:flex;justify-content:space-between;gap:10px;margin-bottom:10px;color:var(--muted);font-size:13px}
    .rating-stars{color:#ff9f1c;letter-spacing:1px}
    .media-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
    .media-grid img{border-radius:20px;border:1px solid var(--line);box-shadow:var(--shadow);width:100%;height:auto}
    .price-list{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
    .price{padding:20px;border-radius:22px;border:1px solid var(--line);background:linear-gradient(180deg,#fff,#fff7ee)}
    .price strong{font-size:28px}
    .accordion{display:grid;gap:12px}
    details{background:#fff;border:1px solid var(--line);border-radius:18px;padding:16px 18px;box-shadow:0 10px 24px rgba(36,42,58,.05)}
    summary{cursor:pointer;font-weight:700;list-style:none}
    summary::-webkit-details-marker{display:none}
    details p{margin:12px 0 0;color:var(--muted)}
    .form-wrap{display:grid;grid-template-columns:1fr .85fr;gap:20px;align-items:start}
    form{display:grid;gap:14px}
    .field{display:grid;gap:8px}
    .field label{font-weight:700;font-size:14px}
    .field input,.field select,.field textarea{width:100%;border:1px solid var(--line);border-radius:14px;padding:13px 14px;font:inherit;background:#fff;color:var(--text);outline:none}
    .field textarea{min-height:120px;resize:vertical}
    .field input:focus,.field select:focus,.field textarea:focus{border-color:#ff9f1c;box-shadow:0 0 0 4px rgba(255,159,28,.14)}
    footer{background:#1f2430;color:#f4f6fa;padding:34px 0 26px;margin-top:12px}
    footer a{color:#fff}
    footer .muted{color:#c6cfdf}
    .footer-grid{display:grid;grid-template-columns:1.1fr .9fr .9fr;gap:18px}
    .footer-box{padding:18px;border-radius:18px;background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.08)}
    .floating{position:fixed;right:16px;bottom:16px;z-index:60;display:grid;gap:10px}
    .floating a,.floating button{width:48px;height:48px;border-radius:50%;display:grid;place-items:center;border:none;background:linear-gradient(135deg,var(--brand),var(--brand2));color:#fff;box-shadow:0 14px 30px rgba(255,77,79,.28);cursor:pointer}
    .floating .wechat{background:linear-gradient(135deg,#00c853,#00bfa5)}
    .backtop{opacity:0;pointer-events:none;transform:translateY(6px);transition:.25s}
    .backtop.show{opacity:1;pointer-events:auto;transform:translateY(0)}
    .float-panel{position:fixed;right:16px;bottom:76px;z-index:59;width:290px;max-width:calc(100vw - 32px);background:#fff;border:1px solid var(--line);border-radius:20px;box-shadow:var(--shadow);padding:16px;display:none}
    .float-panel.show{display:block}
    .float-panel img{border-radius:14px;border:1px solid var(--line)}
    .scroll-reveal{opacity:0;transform:translateY(14px);transition:.7s ease}
    .scroll-reveal.visible{opacity:1;transform:none}
    .subtle{color:var(--muted)}
    .timeline{display:grid;gap:12px}
    .timeline-item{display:grid;grid-template-columns:18px 1fr;gap:12px;align-items:start}
    .timeline-item i{width:18px;height:18px;border-radius:50%;margin-top:6px;background:linear-gradient(135deg,var(--brand3),var(--brand2))}
    .compare-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:10px}
    .compare-badges span{background:#fff;border:1px solid var(--line);padding:8px 12px;border-radius:999px;font-size:13px}
    .mobile-only{display:none}
    @media (max-width: 980px){
      .hero-shell,.split,.form-wrap,.footer-grid,.grid-4,.review-grid,.media-grid,.price-list{grid-template-columns:1fr}
      .nav-toggle{display:inline-flex}
      .nav-links{display:none;position:absolute;left:16px;right:16px;top:68px;background:#fff;border:1px solid var(--line);border-radius:18px;padding:14px;box-shadow:var(--shadow);flex-direction:column;align-items:flex-start}
      .nav-links.show{display:flex}
      .mini-stats{grid-template-columns:1fr}
      .desktop-only{display:none}
      .mobile-only{display:block}
      .section-head{flex-direction:column;align-items:flex-start}
    }