:root{
      --bg:#fffaf3;
      --panel:#ffffff;
      --panel-2:#fff3e7;
      --line:#f0dfd0;
      --text:#1f2a37;
      --muted:#5f6b7a;
      --brand:#ff6a3d;
      --brand-2:#ffb347;
      --brand-3:#7b61ff;
      --ok:#16a34a;
      --shadow:0 18px 40px rgba(38, 24, 12, .08);
      --radius:22px;
      --container:1180px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:system-ui,-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;
      color:var(--text);
      background:
        radial-gradient(circle at top left, rgba(255, 175, 120, .18), transparent 30%),
        radial-gradient(circle at top right, rgba(123, 97, 255, .14), transparent 26%),
        linear-gradient(180deg, #fffdf9 0%, #fff7ef 45%, #fffaf3 100%);
    }
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    .container{width:min(var(--container), calc(100% - 32px)); margin:0 auto}
    .site-header{
      position:sticky; top:0; z-index:50;
      backdrop-filter:saturate(140%) blur(16px);
      background:rgba(255,250,243,.82);
      border-bottom:1px solid rgba(240,223,208,.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}
    .ai-page-logo{width:44px; height:44px; object-fit:contain; border-radius:12px; background:#fff; border:1px solid var(--line); box-shadow:0 8px 18px rgba(0,0,0,.04)}
    .brand-text{display:flex; flex-direction:column; min-width:0}
    .brand-text strong{font-size:1rem; letter-spacing:.5px}
    .brand-text span{font-size:.82rem; color:var(--muted); white-space:nowrap; overflow:hidden; text-overflow:ellipsis}
    .nav-links{display:flex; flex-wrap:wrap; gap:12px; justify-content:flex-end; align-items:center}
    .nav-links a{font-size:.92rem; color:#334155; padding:8px 10px; border-radius:999px}
    .nav-links a:hover{background:#fff; color:var(--brand)}
    .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;
      box-shadow:none;
    }
    .btn-primary{background:linear-gradient(135deg,var(--brand),var(--brand-2)); color:#fff; box-shadow:0 14px 28px rgba(255,106,61,.22)}
    .btn-primary:hover{transform:translateY(-2px); filter:saturate(1.06)}
    .btn-ghost{background:#fff; border-color:var(--line); color:var(--text)}
    .btn-ghost:hover{border-color:#ffc8a8; transform:translateY(-2px)}
    .menu-toggle{display:none}
    .hero{padding:34px 0 10px}
    .hero-grid{
      display:grid; grid-template-columns:1.35fr .9fr; gap:22px; align-items:stretch;
    }
    .hero-main,.hero-side,.card,.panel,.faq-item,.quote,.article,.timeline-item,.price-box,.form-box,.compare-table{
      background:rgba(255,255,255,.92); border:1px solid rgba(240,223,208,.92); 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:50%; pointer-events:none;
      background:radial-gradient(circle, rgba(255,179,71,.18), transparent 62%);
    }
    .hero-main:before{width:260px;height:260px;right:-110px;top:-80px}
    .hero-main:after{width:180px;height:180px;left:-70px;bottom:-80px}
    .eyebrow{display:inline-flex; align-items:center; gap:8px; padding:7px 12px; border-radius:999px; background:var(--panel-2); color:#9a4a20; font-weight:700; font-size:.86rem}
    h1{margin:16px 0 14px; font-size:clamp(2rem, 4vw, 3.6rem); line-height:1.08}
    .lead{font-size:1.03rem; color:var(--muted); line-height:1.8; max-width:62ch}
    .hero-actions{display:flex; flex-wrap:wrap; gap:12px; margin:22px 0 18px}
    .hero-points{display:grid; grid-template-columns:repeat(3,1fr); gap:12px; margin-top:18px}
    .mini-stat{padding:14px; border-radius:18px; background:linear-gradient(180deg,#fff,#fff8f2); border:1px solid var(--line)}
    .mini-stat strong{display:block; font-size:1.12rem}
    .mini-stat span{font-size:.86rem; color:var(--muted)}
    .hero-side{padding:18px; display:grid; gap:14px}
    .hero-side .card{padding:16px}
    .stat-grid{display:grid; grid-template-columns:repeat(4,1fr); gap:14px; margin:20px 0 8px}
    .stat-card{padding:18px}
    .stat-card strong{font-size:1.65rem; display:block}
    .stat-card span{color:var(--muted); font-size:.92rem}
    section{padding:24px 0}
    .section-head{display:flex; justify-content:space-between; gap:18px; align-items:end; margin-bottom:16px}
    .section-head p{margin:0; color:var(--muted); max-width:70ch; line-height:1.75}
    h2{margin:0; font-size:clamp(1.45rem,2.3vw,2.2rem)}
    .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,.panel,.article,.quote,.timeline-item,.price-box,.form-box{padding:20px}
    .card h3,.panel h3,.article h3,.quote h3{margin:6px 0 8px; font-size:1.08rem}
    .muted{color:var(--muted); line-height:1.8}
    .pill-cloud{display:flex; flex-wrap:wrap; gap:10px}
    .pill{padding:9px 12px; border-radius:999px; background:#fff7ef; border:1px solid var(--line); color:#7a4b2e; font-size:.92rem}
    .steps{display:grid; grid-template-columns:repeat(4,1fr); gap:16px}
    .step-num{width:38px; height:38px; display:grid; place-items:center; border-radius:50%; background:linear-gradient(135deg,var(--brand),var(--brand-2)); color:#fff; font-weight:800; margin-bottom:10px}
    .compare-wrap{overflow:auto}
    table{width:100%; border-collapse:collapse; min-width:760px; background:#fff}
    th,td{padding:14px 12px; border-bottom:1px solid var(--line); text-align:left; vertical-align:top}
    th{background:#fff7ef; color:#9a4a20}
    .rating{color:#f59e0b; font-weight:800}
    .faq-item{overflow:hidden}
    .faq-q{width:100%; background:transparent; border:0; padding:18px 20px; text-align:left; display:flex; justify-content:space-between; gap:16px; align-items:center; font:inherit; color:var(--text); cursor:pointer}
    .faq-a{max-height:0; overflow:hidden; transition:max-height .28s ease; padding:0 20px}
    .faq-item.open .faq-a{max-height:180px; padding-bottom:18px}
    .faq-item.open .faq-q .arrow{transform:rotate(180deg)}
    .arrow{transition:transform .25s ease; color:var(--brand)}
    .quotes{display:grid; grid-template-columns:repeat(3,1fr); gap:16px}
    .quote{position:relative}
    .quote:before{content:"“"; position:absolute; right:16px; top:8px; font-size:3rem; color:#ffd8c2; font-family:serif}
    .article-list{display:grid; grid-template-columns:repeat(3,1fr); gap:16px}
    .article .meta{display:flex; justify-content:space-between; color:var(--muted); font-size:.88rem; margin-top:12px}
    .timeline{display:grid; grid-template-columns:repeat(4,1fr); gap:16px}
    .timeline-item{border-top:4px solid #ffd0ad}
    .price-grid{display:grid; grid-template-columns:1.1fr .9fr; gap:16px}
    .price-box ul{margin:12px 0 0; padding-left:18px; color:var(--muted); line-height:1.9}
    .form-grid{display:grid; grid-template-columns:repeat(2,1fr); gap:12px}
    .form-box input,.form-box select,.form-box textarea{
      width:100%; padding:13px 14px; border-radius:14px; border:1px solid #e6d6c9; background:#fff; color:var(--text); outline:none;
    }
    .form-box input:focus,.form-box select:focus,.form-box textarea:focus{border-color:#ffb084; box-shadow:0 0 0 4px rgba(255,176,132,.16)}
    .form-box textarea{min-height:118px; resize:vertical}
    .full{grid-column:1/-1}
    .footer{
      margin-top:8px; padding:26px 0 18px; background:#fff5ea; border-top:1px solid var(--line); color:var(--text)
    }
    .footer a{color:#9a4a20}
    .footer-grid{display:grid; grid-template-columns:1.1fr .9fr .9fr; gap:16px}
    .service-tags{display:grid; grid-template-columns:repeat(2,1fr); gap:10px}
    .tag-box{padding:12px 14px; border-radius:16px; background:#fff; border:1px solid var(--line)}
    .floating{
      position:fixed; right:16px; bottom:16px; z-index:60; display:grid; gap:10px;
    }
    .floating a,.floating button{
      display:grid; place-items:center; width:48px; height:48px; border-radius:50%; border:0; background:linear-gradient(135deg,var(--brand),var(--brand-2)); color:#fff; box-shadow:0 14px 24px rgba(255,106,61,.26); cursor:pointer
    }
    .mobile-panel{display:none}
    .scroll-reveal{opacity:0; transform:translateY(14px); transition:.55s ease}
    .scroll-reveal.in-view{opacity:1; transform:none}
    .ai-page-home-link{font-weight:700}
    @media (max-width: 980px){
      .hero-grid,.price-grid,.footer-grid,.grid-3,.grid-2,.quotes,.article-list,.timeline,.steps,.stat-grid{grid-template-columns:1fr 1fr}
      .hero-points{grid-template-columns:1fr}
      .nav-links{display:none}
      .menu-toggle{display:inline-flex}
      .mobile-panel{display:none; padding:0 0 14px}
      .mobile-panel.open{display:block}
      .mobile-panel .nav-links{display:grid; grid-template-columns:repeat(2,1fr); gap:8px; padding-top:10px}
    }
    @media (max-width: 720px){
      .hero-main,.hero-side,.card,.panel,.faq-q,.faq-a,.quote,.article,.timeline-item,.price-box,.form-box{padding:16px}
      .hero,.section{padding:18px 0}
      .hero-grid,.price-grid,.footer-grid,.grid-3,.grid-2,.quotes,.article-list,.timeline,.steps,.stat-grid,.form-grid{grid-template-columns:1fr}
      .section-head{flex-direction:column; align-items:flex-start}
      h1{font-size:2rem}
      .nav{padding:12px 0}
      .brand-text span{display:none}
      .btn{padding:11px 14px}
      .floating{right:12px; bottom:12px}
    }