:root{
      --bg:#fffaf4;
      --bg2:#f7fbff;
      --card:#ffffff;
      --card2:#fff6ea;
      --text:#1d2b36;
      --muted:#5d6a75;
      --line:#e8e2d8;
      --brand:#ff7a59;
      --brand2:#5b8cff;
      --brand3:#37c5a6;
      --shadow:0 14px 40px rgba(29,43,54,.08);
      --shadow2:0 10px 24px rgba(91,140,255,.12);
      --radius:22px;
      --container:1180px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:system-ui,-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
      color:var(--text);
      background:
        radial-gradient(circle at top left, rgba(255,122,89,.10), transparent 28%),
        radial-gradient(circle at top right, rgba(91,140,255,.10), transparent 24%),
        linear-gradient(180deg, var(--bg) 0%, #fff 34%, #fffdf9 100%);
    }
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    .container{width:min(var(--container), calc(100% - 32px)); margin:0 auto}
    .topbar{
      position:sticky; top:0; z-index:40;
      backdrop-filter:saturate(160%) blur(18px);
      background:rgba(255,250,244,.82);
      border-bottom:1px solid rgba(232,226,216,.8);
    }
    .nav{
      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 img{width:42px; height:42px; object-fit:contain; border-radius:12px; background:#fff; box-shadow:0 6px 18px rgba(0,0,0,.06)}
    .brand-text{display:flex; flex-direction:column; line-height:1.1}
    .brand-text strong{font-size:18px}
    .brand-text span{font-size:12px; color:var(--muted)}
    .nav-links{display:flex; align-items:center; gap:16px; flex-wrap:wrap; justify-content:flex-end}
    .nav-links a{font-size:14px; color:#34424d; padding:8px 10px; border-radius:999px}
    .nav-links a:hover,.nav-links a:focus{background:#fff; box-shadow:0 6px 16px rgba(0,0,0,.05)}
    .nav-cta{display:flex; gap:10px; align-items:center}
    .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; font-size:14px; transition:.25s ease; cursor:pointer;
      white-space:nowrap;
    }
    .btn-primary{background:linear-gradient(135deg,var(--brand),#ff9b66); color:#fff; box-shadow:var(--shadow2)}
    .btn-primary:hover{transform:translateY(-2px); filter:saturate(108%)}
    .btn-secondary{background:#fff; color:var(--text); border-color:var(--line)}
    .btn-secondary:hover{transform:translateY(-2px); box-shadow:var(--shadow)}
    .menu-toggle{display:none; background:#fff; border:1px solid var(--line); border-radius:14px; width:44px; height:44px}
    .menu-toggle span{display:block; width:18px; height:2px; margin:4px auto; background:#31424f; border-radius:2px}
    .hero{
      padding:42px 0 24px;
      position:relative;
      overflow:hidden;
    }
    .hero-grid{
      display:grid; grid-template-columns:1.15fr .85fr; gap:22px; align-items:stretch;
    }
    .hero-main,.hero-side,.section-card,.info-card,.review-card,.faq-item,.article-card,.timeline-card,.price-card,.compare-card,.form-card{
      background:rgba(255,255,255,.88);
      border:1px solid rgba(232,226,216,.9);
      border-radius:var(--radius);
      box-shadow:var(--shadow);
    }
    .hero-main{padding:34px}
    .eyebrow{
      display:inline-flex; align-items:center; gap:8px;
      background:rgba(55,197,166,.12); color:#1f7d69;
      border:1px solid rgba(55,197,166,.18);
      border-radius:999px; padding:8px 12px; font-size:13px; font-weight:700;
    }
    h1{margin:16px 0 14px; font-size:clamp(30px, 4vw, 54px); line-height:1.08}
    .lead{margin:0; font-size:16px; line-height:1.8; color:var(--muted); max-width:56ch}
    .hero-actions{display:flex; gap:12px; flex-wrap:wrap; margin:24px 0 18px}
    .hero-points{display:grid; grid-template-columns:repeat(3,1fr); gap:12px; margin-top:22px}
    .mini{
      background:linear-gradient(180deg,#fff,#fff8ef);
      border:1px solid var(--line);
      border-radius:18px; padding:14px 14px 13px;
    }
    .mini strong{display:block; font-size:20px; margin-bottom:6px}
    .mini span{font-size:13px; color:var(--muted); line-height:1.55}
    .hero-side{padding:18px}
    .side-panel{height:100%; display:flex; flex-direction:column; gap:14px}
    .side-head{padding:12px 14px; background:linear-gradient(135deg,#fff4ea,#edf4ff); border-radius:18px; border:1px solid #f0e4d8}
    .side-head strong{display:block; font-size:18px; margin-bottom:6px}
    .side-head p{margin:0; color:var(--muted); line-height:1.7; font-size:14px}
    .tag-cloud{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:#42515d}
    .hero-img-row{display:grid; grid-template-columns:1fr 1fr; gap:12px}
    .hero-img-row .img-box{
      border-radius:18px; overflow:hidden; border:1px solid var(--line); background:#fff;
      aspect-ratio:1/1;
    }
    .hero-img-row .img-box img{width:100%; height:100%; object-fit:cover}
    section{padding:18px 0}
    .section-head{display:flex; justify-content:space-between; gap:16px; align-items:end; margin-bottom:14px}
    .section-head h2{margin:0; font-size:clamp(24px, 2.4vw, 34px)}
    .section-head p{margin:0; color:var(--muted); line-height:1.7; max-width:64ch; font-size:14px}
    .grid-4{display:grid; grid-template-columns:repeat(4,1fr); gap:14px}
    .grid-3{display:grid; grid-template-columns:repeat(3,1fr); gap:14px}
    .grid-2{display:grid; grid-template-columns:repeat(2,1fr); gap:14px}
    .section-card,.info-card,.review-card,.article-card,.timeline-card,.price-card,.compare-card,.form-card,.faq-item{padding:20px}
    .metric{display:flex; flex-direction:column; gap:10px}
    .metric b{font-size:30px}
    .metric small{color:var(--muted); line-height:1.6}
    .chip{display:inline-flex; align-items:center; gap:8px; width:max-content; padding:7px 11px; border-radius:999px; background:#f7fbff; color:#3561c7; border:1px solid #dfeaff; font-size:12px; font-weight:700}
    .service-list,.steps,.bullet-list,.topic-list{display:grid; gap:12px; margin:0; padding:0; list-style:none}
    .service-list li,.steps li,.bullet-list li,.topic-list li{
      padding:14px 14px; border-radius:16px; border:1px solid var(--line); background:linear-gradient(180deg,#fff,#fffaf3);
      line-height:1.65; color:#32414d
    }
    .service-list strong,.steps strong,.bullet-list strong{display:block; margin-bottom:6px}
    .steps{grid-template-columns:repeat(4,1fr)}
    .steps li{position:relative; padding-top:18px}
    .steps li::before{
      content:attr(data-step); position:absolute; top:-12px; left:14px;
      background:linear-gradient(135deg,var(--brand2),#87a9ff); color:#fff; width:28px; height:28px; border-radius:999px;
      display:flex; align-items:center; justify-content:center; font-size:12px; font-weight:800; box-shadow:0 8px 18px rgba(91,140,255,.24);
    }
    .compare-wrap{overflow:auto}
    table{width:100%; border-collapse:collapse; min-width:760px}
    th,td{padding:14px 12px; border-bottom:1px solid var(--line); text-align:left; vertical-align:top; line-height:1.6}
    th{background:#fff7ef; font-size:14px}
    .rating{display:inline-flex; align-items:center; gap:6px; font-weight:800; color:#c85a00}
    .bars{display:grid; gap:12px}
    .bar{display:grid; gap:8px}
    .bar-top{display:flex; justify-content:space-between; font-size:14px}
    .bar-track{height:10px; background:#f0ece6; border-radius:999px; overflow:hidden}
    .bar-fill{height:100%; border-radius:999px; background:linear-gradient(90deg,var(--brand),#ffbb77)}
    .timeline{display:grid; grid-template-columns:repeat(3,1fr); gap:14px}
    .timeline-card{position:relative}
    .timeline-card .year{font-weight:800; color:#3561c7; margin-bottom:10px}
    .review-card .meta{display:flex; justify-content:space-between; gap:10px; margin-bottom:10px}
    .stars{color:#ffb300; letter-spacing:2px}
    .article-card h3,.review-card h3,.info-card h3,.price-card h3,.timeline-card h3{margin:0 0 10px; font-size:18px}
    .article-card p,.review-card p,.info-card p,.price-card p,.timeline-card p,.faq-item p{margin:0; color:var(--muted); line-height:1.75}
    details{border-radius:18px}
    summary{list-style:none; cursor:pointer; font-weight:700}
    summary::-webkit-details-marker{display:none}
    .faq-item{padding:0; overflow:hidden}
    .faq-item summary{padding:18px 20px}
    .faq-item p{padding:0 20px 18px}
    .faq-item[open]{box-shadow:var(--shadow2)}
    .contact-wrap{display:grid; grid-template-columns:1.05fr .95fr; gap:14px}
    form{display:grid; gap:12px}
    .field{display:grid; gap:8px}
    label{font-size:14px; font-weight:700; color:#33424d}
    input,select,textarea{
      width:100%; border:1px solid var(--line); border-radius:14px; padding:13px 14px;
      font:inherit; background:#fff; color:var(--text); outline:none;
    }
    textarea{min-height:132px; resize:vertical}
    input:focus,select:focus,textarea:focus{border-color:#a8c2ff; box-shadow:0 0 0 4px rgba(91,140,255,.12)}
    .contact-cards{display:grid; gap:12px}
    .contact-mini{padding:16px; border-radius:18px; background:linear-gradient(180deg,#fff,#fffaf3); border:1px solid var(--line)}
    .contact-mini strong{display:block; margin-bottom:6px}
    .floating{
      position:fixed; right:16px; bottom:16px; z-index:50; display:grid; gap:10px;
    }
    .float-btn{
      width:52px; height:52px; border-radius:50%; display:flex; align-items:center; justify-content:center;
      background:linear-gradient(135deg,var(--brand2),#7db0ff); color:#fff; box-shadow:0 14px 30px rgba(91,140,255,.26)
    }
    .float-btn.secondary{background:linear-gradient(135deg,var(--brand),#ff9a6a)}
    footer{
      margin-top:18px; padding:24px 0 22px; background:#1f2a33; color:#eaf1f6;
    }
    footer a{color:#fff7ca}
    footer .footer-grid{display:grid; grid-template-columns:1.2fr .8fr; gap:14px}
    .footer-box{padding:18px; border-radius:20px; background:rgba(255,255,255,.06); border:1px solid rgba(255,255,255,.10)}
    .footer-box p{margin:0; color:#c8d3dc; line-height:1.75}
    .footer-links{display:flex; flex-wrap:wrap; gap:10px; margin-top:10px}
    .footer-links a{padding:8px 11px; background:rgba(255,255,255,.08); border-radius:999px}
    .mobile-only{display:none}
    .scrolltop{position:fixed; right:16px; bottom:82px; z-index:49}
    .hidden{display:none !important}
    .divider{height:1px; background:linear-gradient(90deg,transparent,#e8e2d8,transparent); margin:14px 0}
    @media (max-width: 1024px){
      .hero-grid,.contact-wrap,.grid-4,.grid-3,.grid-2,.timeline,footer .footer-grid{grid-template-columns:1fr}
      .steps{grid-template-columns:1fr 1fr}
      .hero-points{grid-template-columns:1fr}
      .nav-links{display:none}
      .menu-toggle{display:inline-flex; align-items:center; justify-content:center; flex-direction:column}
      .nav.open .nav-links{
        display:flex; position:absolute; left:16px; right:16px; top:72px; padding:12px; flex-direction:column; align-items:flex-start;
        background:#fff; border:1px solid var(--line); border-radius:18px; box-shadow:var(--shadow);
      }
      .nav.open .nav-cta{display:flex}
      .nav{position:relative}
      .mobile-only{display:block}
    }
    @media (max-width: 640px){
      .container{width:min(var(--container), calc(100% - 24px))}
      .hero-main,.hero-side,.section-card,.info-card,.review-card,.faq-item,.article-card,.timeline-card,.price-card,.compare-card,.form-card{padding:16px}
      .hero{padding-top:22px}
      h1{font-size:30px}
      .hero-actions .btn{width:100%}
      .nav-cta .btn-secondary{display:none}
      .steps{grid-template-columns:1fr}
      .hero-main{padding:22px 16px}
      .hero-points{gap:10px}
      .metric b{font-size:24px}
      table{min-width:640px}
    }
    .reveal{opacity:0; transform:translateY(14px); transition:.7s ease}
    .reveal.show{opacity:1; transform:none}