:root{
      --bg:#fff8f4;
      --panel:#ffffff;
      --panel-2:#fff1ea;
      --text:#231815;
      --muted:#6a5b57;
      --line:#f1d6c9;
      --brand:#d62828;
      --brand-2:#ff5a36;
      --brand-dark:#8d1111;
      --shadow:0 18px 45px rgba(160, 52, 28, .12);
      --shadow-soft:0 10px 28px rgba(160, 52, 28, .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;
      color:var(--text);
      background:
        radial-gradient(circle at top left, rgba(255,90,54,.13), transparent 26%),
        radial-gradient(circle at top right, rgba(214,40,40,.08), transparent 22%),
        linear-gradient(180deg, #fff7f3 0%, #fffaf8 42%, #fffefe 100%);
    }
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    .container{width:min(100% - 32px, var(--container)); margin:0 auto}
    .topbar{
      position:sticky; top:0; z-index:50;
      backdrop-filter:saturate(170%) blur(14px);
      background:rgba(255,248,244,.86);
      border-bottom:1px solid rgba(241,214,201,.8);
    }
    .nav{
      display:flex; align-items:center; justify-content:space-between; gap:14px;
      min-height:76px;
    }
    .brand{display:flex; align-items:center; gap:12px; min-width:0}
    .brand .ai-page-logo{width:42px; height:42px; object-fit:contain; border-radius:12px; box-shadow:0 8px 18px rgba(214,40,40,.12)}
    .brand strong{display:block; font-size:1.02rem; letter-spacing:.5px}
    .brand span{display:block; font-size:.82rem; color:var(--muted)}
    .nav-links{display:flex; align-items:center; gap:18px; flex-wrap:wrap; justify-content:flex-end}
    .nav-links a{font-size:.95rem; color:#4d3f3b; 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(--brand-2)); transition:.25s ease;
    }
    .nav-links a:hover::after{width:100%}
    .nav-cta{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:.25s ease; white-space:nowrap;
    }
    .btn-primary{color:#fff; background:linear-gradient(135deg,var(--brand),var(--brand-2)); box-shadow:0 14px 30px rgba(214,40,40,.22)}
    .btn-primary:hover{transform:translateY(-2px); box-shadow:0 18px 36px rgba(214,40,40,.28)}
    .btn-ghost{color:var(--brand-dark); background:#fff; border-color:rgba(214,40,40,.16)}
    .btn-ghost:hover{transform:translateY(-2px); box-shadow:var(--shadow-soft)}
    .menu-toggle{display:none; background:#fff; border:1px solid rgba(214,40,40,.15); color:var(--brand-dark); border-radius:14px; padding:10px 12px}
    .hero{padding:30px 0 18px}
    .hero-grid{display:grid; grid-template-columns:1.1fr .9fr; gap:22px; align-items:stretch}
    .hero-main{
      position:relative; overflow:hidden;
      background:linear-gradient(135deg,#9f0d16 0%, #d61d25 46%, #ff6238 100%);
      color:#fff; border-radius:28px; padding:34px; box-shadow:var(--shadow);
      min-height:420px;
    }
    .hero-main::before,.hero-main::after{
      content:""; position:absolute; border-radius:50%; background:rgba(255,255,255,.12); filter:blur(2px);
    }
    .hero-main::before{width:260px; height:260px; top:-120px; right:-80px}
    .hero-main::after{width:180px; height:180px; bottom:-70px; left:-70px}
    .eyebrow{display:inline-flex; align-items:center; gap:8px; padding:8px 12px; border-radius:999px; background:rgba(255,255,255,.14); font-size:.88rem}
    h1{margin:16px 0 14px; font-size:clamp(2rem,4vw,3.6rem); line-height:1.12}
    .hero p{margin:0; color:rgba(255,255,255,.92); line-height:1.8}
    .hero-actions{display:flex; flex-wrap:wrap; gap:12px; margin-top:24px}
    .hero-points{display:grid; grid-template-columns:repeat(3,1fr); gap:12px; margin-top:26px}
    .point{
      background:rgba(255,255,255,.12); border:1px solid rgba(255,255,255,.18); border-radius:18px; padding:14px;
      backdrop-filter:blur(8px);
    }
    .point b{display:block; font-size:1.06rem; margin-bottom:4px}
    .point span{font-size:.9rem; color:rgba(255,255,255,.85)}
    .hero-side{
      display:grid; gap:14px;
    }
    .side-card{
      background:rgba(255,255,255,.86); border:1px solid rgba(241,214,201,.8);
      border-radius:24px; padding:18px; box-shadow:var(--shadow-soft);
    }
    .side-card h3{margin:0 0 10px; font-size:1.05rem}
    .metrics{display:grid; grid-template-columns:repeat(2,1fr); gap:12px}
    .metric{
      background:linear-gradient(180deg,#fff 0%, #fff7f3 100%); border:1px solid rgba(241,214,201,.85);
      border-radius:18px; padding:14px;
    }
    .metric strong{display:block; font-size:1.35rem; color:var(--brand-dark)}
    .metric span{display:block; margin-top:4px; color:var(--muted); font-size:.88rem; line-height:1.5}
    .tag-cloud{display:flex; flex-wrap:wrap; gap:10px}
    .tag{padding:8px 12px; background:#fff4ef; border:1px solid rgba(214,40,40,.12); border-radius:999px; color:#8a3f2a; font-size:.88rem}
    main{padding-bottom:12px}
    section{padding:18px 0}
    .section-title{display:flex; align-items:end; justify-content:space-between; gap:14px; margin-bottom:16px}
    .section-title h2{margin:0; font-size:clamp(1.35rem,2.5vw,2rem)}
    .section-title p{margin:0; color:var(--muted); line-height:1.7}
    .grid-3{display:grid; grid-template-columns:repeat(3,1fr); gap:16px}
    .grid-4{display:grid; grid-template-columns:repeat(4,1fr); gap:16px}
    .card{
      background:var(--panel); border:1px solid rgba(241,214,201,.95); border-radius:var(--radius);
      box-shadow:var(--shadow-soft); padding:20px; transition:.25s ease;
    }
    .card:hover{transform:translateY(-4px); box-shadow:var(--shadow)}
    .card h3{margin:0 0 10px; font-size:1.08rem}
    .card p, .card li{color:var(--muted); line-height:1.8}
    .card ul{margin:0; padding-left:18px}
    .stats{display:grid; grid-template-columns:repeat(4,1fr); gap:16px}
    .stat{
      background:linear-gradient(180deg,#fff 0%, #fff1ea 100%);
      border:1px solid rgba(241,214,201,.92); border-radius:22px; padding:18px;
    }
    .stat strong{display:block; font-size:1.7rem; color:var(--brand-dark)}
    .stat span{display:block; margin-top:5px; color:var(--muted)}
    .media-split{display:grid; grid-template-columns:repeat(2,1fr); gap:16px}
    .media-split .card img{border-radius:16px; margin-top:12px}
    .steps{counter-reset:s;}
    .step{position:relative; padding-left:54px}
    .step::before{
      counter-increment:s; content:counter(s);
      position:absolute; left:18px; top:20px; width:28px; height:28px; border-radius:50%;
      background:linear-gradient(135deg,var(--brand),var(--brand-2)); color:#fff; display:grid; place-items:center; font-weight:700;
    }
    .table-wrap{overflow:auto; border:1px solid rgba(241,214,201,.95); border-radius:20px; background:#fff}
    table{width:100%; border-collapse:collapse; min-width:820px}
    th,td{padding:14px 16px; border-bottom:1px solid #f4dfd4; text-align:left; vertical-align:top}
    th{background:#fff5f0; color:#5b2a22}
    .rating{
      display:flex; flex-wrap:wrap; gap:10px; align-items:center; margin-top:8px
    }
    .stars{color:#ff8a00; letter-spacing:2px; font-size:1.15rem}
    details{
      background:var(--panel); border:1px solid rgba(241,214,201,.95); border-radius:18px; box-shadow:var(--shadow-soft); overflow:hidden
    }
    details + details{margin-top:12px}
    summary{
      list-style:none; cursor:pointer; padding:18px 20px; font-weight:700; color:#382724;
      display:flex; align-items:center; justify-content:space-between; gap:12px;
    }
    summary::-webkit-details-marker{display:none}
    summary::after{content:"＋"; color:var(--brand)}
    details[open] summary::after{content:"－"}
    details .detail-body{padding:0 20px 18px; color:var(--muted); line-height:1.8}
    .reviews{display:grid; grid-template-columns:repeat(3,1fr); gap:16px}
    .review .meta{display:flex; align-items:center; justify-content:space-between; gap:10px; margin-bottom:12px}
    .review .role{color:var(--brand-dark); font-weight:700}
    .review .quote{color:var(--text); line-height:1.8}
    .articles{display:grid; grid-template-columns:repeat(3,1fr); gap:16px}
    .article a{display:block; color:var(--brand-dark); font-weight:700; margin-top:10px}
    .form-wrap{display:grid; grid-template-columns:1.05fr .95fr; gap:16px}
    form{
      display:grid; grid-template-columns:repeat(2,1fr); gap:12px;
    }
    .field{display:grid; gap:8px}
    .field.full{grid-column:1 / -1}
    label{font-weight:700; color:#3a2925}
    input,select,textarea{
      width:100%; border:1px solid #e8cfc1; background:#fff; color:var(--text); border-radius:14px; padding:13px 14px; font:inherit; outline:none;
    }
    textarea{min-height:120px; resize:vertical}
    input:focus,select:focus,textarea:focus{border-color:#ff7b57; box-shadow:0 0 0 4px rgba(255,122,87,.12)}
    .contact-box{display:grid; gap:12px}
    .mini-list{display:grid; gap:10px}
    .mini-item{display:flex; gap:10px; align-items:flex-start; color:var(--muted); line-height:1.7}
    .dot{width:10px; height:10px; border-radius:50%; margin-top:8px; background:linear-gradient(135deg,var(--brand),var(--brand-2)); flex:0 0 auto}
    .footer{
      margin-top:12px; background:#1f1312; color:#f9e8e3; padding:26px 0 18px; border-top:1px solid rgba(255,255,255,.08)
    }
    .footer a{color:#ffd1c3}
    .footer-grid{display:grid; grid-template-columns:1.2fr .8fr .9fr; gap:18px; align-items:start}
    .footer small,.footer p{color:#f1ccc2; line-height:1.7}
    .footer .tag{background:rgba(255,255,255,.06); border-color:rgba(255,255,255,.1); color:#ffd7cc}
    .footer-bottom{margin-top:18px; padding-top:14px; border-top:1px solid rgba(255,255,255,.1); color:#eecdc2; font-size:.92rem}
    .float-box{
      position:fixed; right:18px; bottom:18px; z-index:60; display:grid; gap:10px;
    }
    .float-btn{
      width:54px; height:54px; border-radius:18px; display:grid; place-items:center;
      background:linear-gradient(135deg,var(--brand),var(--brand-2)); color:#fff; box-shadow:0 12px 24px rgba(214,40,40,.28)
    }
    .float-btn:hover{transform:translateY(-2px)}
    .mobile-nav{display:none}
    .scroll-reveal{opacity:0; transform:translateY(18px); transition:.6s ease}
    .scroll-reveal.show{opacity:1; transform:translateY(0)}
    .home-link{font-weight:700}
    .qrcode{
      width:150px; border-radius:16px; border:1px solid rgba(241,214,201,.9); overflow:hidden;
    }
    @media (max-width: 980px){
      .hero-grid,.form-wrap,.footer-grid,.media-split,.grid-4,.grid-3,.stats,.reviews,.articles{grid-template-columns:1fr 1fr}
      .hero-main{min-height:auto}
    }
    @media (max-width: 760px){
      .nav-links,.nav-cta{display:none}
      .menu-toggle{display:inline-flex}
      .mobile-nav{display:none; padding:0 0 16px}
      .mobile-nav.open{display:block}
      .mobile-nav .panel{
        background:#fff; border:1px solid rgba(241,214,201,.95); border-radius:20px; padding:14px; box-shadow:var(--shadow-soft)
      }
      .mobile-nav a{display:block; padding:11px 6px; border-bottom:1px solid #f5e4dc; color:#43302b}
      .mobile-nav a:last-child{border-bottom:none}
      .hero-grid,.form-wrap,.footer-grid,.media-split,.grid-4,.grid-3,.stats,.reviews,.articles,.hero-points{grid-template-columns:1fr}
      form{grid-template-columns:1fr}
      .section-title{flex-direction:column; align-items:flex-start}
      .hero-main{padding:24px}
      .hero{padding-top:18px}
    }