:root{
      --bg:#fffaf4;
      --bg2:#fff3e7;
      --card:#ffffff;
      --text:#1d2430;
      --muted:#5d6472;
      --line:#f0dcc7;
      --brand:#ff6b1b;
      --brand2:#ff8b2b;
      --brand3:#ffb14a;
      --shadow:0 18px 50px rgba(122,63,12,.12);
      --radius:22px;
      --radius2:16px;
      --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(255,177,74,.18), transparent 26%),
        radial-gradient(circle at 85% 10%, rgba(255,107,27,.12), transparent 24%),
        linear-gradient(180deg,#fff9f3 0%, #fff7ef 34%, #fffdfb 100%);
    }
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    .container{width:min(100% - 32px,var(--container));margin:0 auto}
    .topbar,.site-header,.site-footer,.section{position:relative}
    .topbar{
      background:rgba(255,255,255,.65);
      border-bottom:1px solid rgba(240,220,199,.8);
      backdrop-filter:blur(14px);
    }
    .topbar-inner,.header-inner,.footer-inner,.section-head{display:flex;align-items:center;justify-content:space-between;gap:16px}
    .topbar-inner{padding:10px 0;font-size:14px;color:var(--muted);flex-wrap:wrap}
    .topbar strong{color:var(--text)}
    .header-inner{padding:18px 0}
    .brand{display:flex;align-items:center;gap:14px;min-width:0}
    .ai-page-logo{width:48px;height:48px;object-fit:contain;border-radius:14px;background:#fff;box-shadow:0 10px 24px rgba(255,107,27,.12);padding:6px}
    .brand h1,.brand .site-name{font-size:18px;line-height:1.2;margin:0;font-weight:800}
    .brand small{display:block;color:var(--muted);font-size:12px;margin-top:4px}
    .nav-toggle{display:none;border:1px solid var(--line);background:#fff;border-radius:12px;padding:10px 12px;color:var(--text)}
    nav ul{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:10px;align-items:center}
    nav a{
      display:inline-flex;align-items:center;justify-content:center;
      padding:10px 14px;border-radius:999px;border:1px solid transparent;
      color:var(--text);font-weight:600;font-size:14px;
      transition:.22s ease;
    }
    nav a:hover,nav a:focus,.pill:hover,.btn:hover,.btn:focus,.card:hover,.review:hover,.article:hover{transform:translateY(-2px)}
    nav a:hover{border-color:rgba(255,107,27,.25);background:#fff}
    .btns{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
    .btn{
      display:inline-flex;align-items:center;justify-content:center;gap:8px;
      padding:12px 18px;border-radius:14px;font-weight:700;border:1px solid transparent;
      transition:.22s ease;cursor:pointer
    }
    .btn-primary{background:linear-gradient(135deg,var(--brand),var(--brand2));color:#fff;box-shadow:0 14px 30px rgba(255,107,27,.22)}
    .btn-secondary{background:#fff;border-color:var(--line);color:var(--text)}
    .hero{padding:28px 0 18px}
    .hero-shell{
      display:grid;grid-template-columns:1.18fr .82fr;gap:18px;align-items:stretch;
    }
    .hero-main,.hero-side,.card,.metric,.service,.step,.review,.article,.faq-item,.form-wrap,.panel,.price-card,.timeline-item,.compare-box,.network{
      background:rgba(255,255,255,.82);
      border:1px solid rgba(240,220,199,.9);
      box-shadow:var(--shadow);
      border-radius:var(--radius)
    }
    .hero-main{padding:30px;overflow:hidden;position:relative}
    .hero-main:before{
      content:"";position:absolute;inset:auto -80px -120px auto;width:260px;height:260px;border-radius:50%;
      background:radial-gradient(circle, rgba(255,107,27,.18), transparent 60%);
    }
    .eyebrow{
      display:inline-flex;align-items:center;gap:8px;
      padding:8px 12px;border-radius:999px;background:#fff3e7;border:1px solid #ffd8bd;
      color:#b24600;font-weight:700;font-size:13px
    }
    .hero h2{font-size:clamp(30px,4vw,52px);line-height:1.08;margin:16px 0 14px;letter-spacing:-.02em}
    .hero p{margin:0;color:var(--muted);font-size:16px;line-height:1.8;max-width:58ch}
    .hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin:24px 0 18px}
    .hero-highlights{display:flex;gap:10px;flex-wrap:wrap}
    .pill{
      border:1px solid #f0dcc7;background:#fff;display:inline-flex;align-items:center;gap:8px;
      padding:10px 14px;border-radius:999px;color:#4b5160;font-weight:650;transition:.2s ease
    }
    .hero-side{padding:22px;display:grid;gap:14px}
    .mini-stat{padding:16px;border-radius:18px;background:linear-gradient(180deg,#fff 0%,#fff8f1 100%);border:1px solid #f4e0cf}
    .mini-stat strong{display:block;font-size:28px;color:#b24600;margin-bottom:4px}
    .mini-stat span{color:var(--muted);font-size:13px}
    .mini-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
    .mini-box{padding:14px;border-radius:16px;background:#fff;border:1px solid #f2dfce}
    .mini-box b{display:block;font-size:15px;margin-bottom:6px}
    .mini-box p{margin:0;color:var(--muted);font-size:13px;line-height:1.65}
    .section{padding:18px 0}
    .section-title{display:flex;align-items:end;justify-content:space-between;gap:16px;margin-bottom:16px;flex-wrap:wrap}
    .section-title h3{margin:0;font-size:28px;line-height:1.2}
    .section-title p{margin:0;color:var(--muted);max-width:68ch;line-height:1.7}
    .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}
    .metric,.service,.step,.review,.article,.faq-item,.panel,.price-card,.compare-box,.network,.form-wrap{padding:18px}
    .metric strong,.service h4,.step h4,.review h4,.article h4,.price-card h4{margin:0 0 8px}
    .metric strong{display:block;font-size:24px;color:var(--brand)}
    .metric p,.service p,.step p,.review p,.article p,.panel p,.price-card p,.network p{margin:0;color:var(--muted);line-height:1.7}
    .icon{
      width:42px;height:42px;border-radius:14px;display:inline-flex;align-items:center;justify-content:center;
      background:linear-gradient(135deg,rgba(255,107,27,.15),rgba(255,177,74,.22));color:#b24600;font-weight:900;margin-bottom:12px
    }
    .tag-cloud,.services-tags{display:flex;flex-wrap:wrap;gap:10px}
    .tag-cloud span,.services-tags span{
      padding:9px 12px;border-radius:999px;background:#fff;border:1px solid #f0dcc7;color:#5c6270;font-size:13px
    }
    .feature-list{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
    .feature{padding:14px;border-radius:16px;background:#fff;border:1px solid #f1e0cf}
    .feature b{display:block;margin-bottom:6px}
    .feature span{color:var(--muted);font-size:13px;line-height:1.6}
    .table-wrap{overflow:auto;border-radius:18px;border:1px solid #f0dcc7;background:#fff}
    table{width:100%;border-collapse:collapse;min-width:820px}
    th,td{padding:14px 16px;border-bottom:1px solid #f4e7db;text-align:left;vertical-align:top}
    th{background:#fff7ef;font-size:14px}
    td{color:#3c4453;line-height:1.65}
    .badge{display:inline-flex;align-items:center;padding:5px 10px;border-radius:999px;background:#fff2e6;color:#b24600;font-weight:700;font-size:12px}
    .timeline{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
    .timeline-item{position:relative}
    .timeline-item:before{
      content:"";position:absolute;top:18px;left:18px;width:12px;height:12px;border-radius:50%;background:linear-gradient(135deg,var(--brand),var(--brand3))
    }
    .timeline-item h4{padding-left:24px;margin-top:0}
    .timeline-item p{padding-left:24px}
    .compare-score{display:grid;grid-template-columns:1fr auto;gap:16px;align-items:center}
    .score{
      width:120px;height:120px;border-radius:50%;display:grid;place-items:center;
      background:conic-gradient(from 240deg,var(--brand) 0 356deg,#f3e0cf 356deg 360deg);
      margin-left:auto
    }
    .score span{width:92px;height:92px;border-radius:50%;display:grid;place-items:center;background:#fff;font-size:26px;font-weight:900;color:#b24600}
    .faq-item summary{cursor:pointer;list-style:none;font-weight:700}
    .faq-item summary::-webkit-details-marker{display:none}
    .faq-item p{margin-top:10px}
    .reviews,.articles,.faq-list,.prices,.networks,.services,.steps,.compare-grid,.about-grid,.form-grid{display:grid;gap:14px}
    .articles{grid-template-columns:repeat(3,1fr)}
    .form-grid{grid-template-columns:repeat(2,1fr)}
    .form-wrap label{display:block;font-weight:700;margin-bottom:8px}
    .form-wrap input,.form-wrap select,.form-wrap textarea{
      width:100%;border:1px solid #e8d6c4;background:#fff;border-radius:14px;padding:13px 14px;
      font:inherit;color:var(--text);outline:none
    }
    .form-wrap textarea{min-height:140px;resize:vertical}
    .form-wrap input:focus,.form-wrap select:focus,.form-wrap textarea:focus{border-color:#ffb06b;box-shadow:0 0 0 4px rgba(255,107,27,.08)}
    .aside-card{display:grid;gap:12px}
    .qrcode{width:146px;aspect-ratio:1;border-radius:18px;overflow:hidden;border:1px solid #f0dcc7;background:#fff}
    .qrcode img{width:100%;height:100%;object-fit:cover}
    .site-footer{
      margin-top:18px;border-top:1px solid rgba(240,220,199,.95);
      background:linear-gradient(180deg,#fffaf4 0%, #fff4e8 100%);
      color:#344055
    }
    .site-footer a{color:#9a3f00}
    .footer-inner{padding:26px 0;align-items:flex-start}
    .footer-col{flex:1;min-width:220px}
    .footer-col h4{margin:0 0 12px}
    .footer-links{display:flex;flex-wrap:wrap;gap:10px}
    .footer-links a{padding:8px 11px;border-radius:999px;background:#fff;border:1px solid #f0dcc7}
    .copyright{padding:0 0 22px;color:#7a6f62;font-size:13px;line-height:1.7}
    .floating{
      position:fixed;right:18px;bottom:18px;z-index:40;display:grid;gap:10px
    }
    .float-btn{
      width:52px;height:52px;border-radius:16px;background:linear-gradient(135deg,var(--brand),var(--brand2));
      color:#fff;display:grid;place-items:center;box-shadow:0 16px 32px rgba(255,107,27,.24);border:none;cursor:pointer
    }
    .float-panel{
      width:min(320px,calc(100vw - 36px));padding:16px;border-radius:18px;background:#fff;border:1px solid #f0dcc7;box-shadow:var(--shadow);
      display:none
    }
    .float-panel.show{display:block}
    .float-panel strong{display:block;margin-bottom:8px}
    .mobile-only{display:none}
    .scroll-anim{opacity:0;transform:translateY(14px);transition:.6s ease}
    .scroll-anim.in{opacity:1;transform:none}
    @media (max-width: 1024px){
      .hero-shell,.grid-4,.grid-3,.articles,.timeline{grid-template-columns:repeat(2,1fr)}
      .hero-shell{grid-template-columns:1fr}
      .form-grid,.grid-2,.about-grid,.compare-grid{grid-template-columns:1fr}
    }
    @media (max-width: 768px){
      .nav-toggle{display:inline-flex}
      nav{display:none;width:100%}
      nav.open{display:block}
      nav ul{padding:12px 0;gap:8px}
      .header-inner{flex-wrap:wrap}
      .btns{width:100%}
      .hero-main{padding:22px}
      .section-title h3{font-size:24px}
      .grid-4,.grid-3,.articles,.timeline,.grid-2,.form-grid{grid-template-columns:1fr}
      .topbar-inner{font-size:13px}
      .floating{right:12px;bottom:12px}
      .desktop-only{display:none}
      .mobile-only{display:block}
      .score{margin-left:0}
      .compare-score{grid-template-columns:1fr}
    }