:root{
      --bg:#fff9f4;
      --bg2:#fff;
      --card:#ffffff;
      --text:#1f2430;
      --muted:#5f6b7a;
      --line:#e8e1d8;
      --brand:#ff4d6d;
      --brand2:#ffb703;
      --brand3:#2563eb;
      --shadow:0 18px 50px rgba(31,36,48,.08);
      --shadow2:0 12px 24px rgba(255,77,109,.12);
      --radius:20px;
      --radius2:14px;
      --max: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;background:linear-gradient(180deg,#fff6ee 0%,#fffaf7 25%,#ffffff 100%);color:var(--text)}
    img{display:block;max-width:100%}
    a{color:inherit;text-decoration:none}
    .container{width:min(var(--max),calc(100% - 32px));margin:0 auto}
    .site-header{position:sticky;top:0;z-index:50;background:rgba(255,250,247,.88);backdrop-filter:blur(12px);border-bottom:1px solid rgba(232,225,216,.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 8px 20px rgba(0,0,0,.06)}
    .brand strong{display:block;font-size:16px;line-height:1.1}
    .brand span{display:block;font-size:12px;color:var(--muted)}
    .nav-links{display:flex;align-items:center;gap:18px;flex-wrap:wrap}
    .nav-links a{font-size:14px;color:#344054;padding:8px 0;position:relative}
    .nav-links a::after{content:"";position:absolute;left:0;bottom:2px;width:0;height:2px;background:linear-gradient(90deg,var(--brand),var(--brand2));transition:.25s}
    .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;font-size:14px;transition:.25s ease;cursor:pointer;white-space:nowrap}
    .btn-primary{background:linear-gradient(135deg,var(--brand),#ff6b35);color:#fff;box-shadow:var(--shadow2)}
    .btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 30px rgba(255,77,109,.2)}
    .btn-ghost{background:#fff;border-color:var(--line);color:var(--text)}
    .btn-ghost:hover{transform:translateY(-2px);border-color:#f2c6cf}
    .menu-btn{display:none;background:#fff;border:1px solid var(--line);border-radius:12px;padding:10px 12px}
    .hero{position:relative;overflow:hidden;padding:34px 0 24px}
    .hero::before,.hero::after{content:"";position:absolute;border-radius:50%;filter:blur(10px);opacity:.55;pointer-events:none}
    .hero::before{width:240px;height:240px;background:radial-gradient(circle,rgba(255,77,109,.18),rgba(255,77,109,0) 70%);right:-70px;top:20px}
    .hero::after{width:280px;height:280px;background:radial-gradient(circle,rgba(37,99,235,.12),rgba(37,99,235,0) 70%);left:-100px;bottom:-80px}
    .hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:24px;align-items:stretch}
    .hero-copy,.hero-panel,.card,.price,.faq-item,.review,.article,.timeline li,.service-box,.form-wrap,.compare,.network,.quote{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
    .hero-copy{padding:34px}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;background:rgba(255,77,109,.08);color:#c62842;border-radius:999px;padding:8px 12px;font-size:13px;font-weight:700}
    h1{margin:16px 0 14px;font-size:clamp(30px,5vw,54px);line-height:1.06;letter-spacing:-.03em}
    .lead{font-size:16px;line-height:1.8;color:var(--muted);max-width:54ch}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin:24px 0 18px}
    .hero-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:18px}
    .stat{padding:14px;border-radius:16px;background:linear-gradient(180deg,#fff,#fff8f4);border:1px solid #f0e6de}
    .stat strong{display:block;font-size:24px;color:#111827}
    .stat span{display:block;font-size:13px;color:var(--muted);margin-top:4px}
    .hero-panel{padding:22px;display:grid;gap:14px;align-content:start}
    .panel-top{display:flex;justify-content:space-between;gap:12px;align-items:flex-start}
    .panel-top h3{margin:0;font-size:18px}
    .panel-top p{margin:6px 0 0;color:var(--muted);font-size:14px;line-height:1.7}
    .tag-cloud{display:flex;flex-wrap:wrap;gap:10px}
    .tag-cloud span{font-size:12px;padding:8px 10px;border-radius:999px;background:#fff3f6;color:#a21d3a;border:1px solid #ffd0d9}
    .section{padding:22px 0}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:16px;margin-bottom:16px}
    .section-head h2{margin:0;font-size:28px;line-height:1.15}
    .section-head p{margin:0;color:var(--muted);line-height:1.7;max-width:62ch}
    .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{padding:20px}
    .card h3{margin:0 0 10px;font-size:18px}
    .card p,.card li{color:var(--muted);line-height:1.75}
    .metric{display:flex;align-items:flex-start;gap:14px}
    .metric .icon{width:44px;height:44px;border-radius:14px;background:linear-gradient(135deg,rgba(255,77,109,.15),rgba(255,183,3,.18));display:grid;place-items:center;font-size:20px}
    .list{margin:0;padding-left:18px}
    .list li+li{margin-top:8px}
    .workflow{display:grid;grid-template-columns:repeat(5,1fr);gap:14px}
    .step{padding:18px;border-radius:18px;background:linear-gradient(180deg,#fff,#fff7f1);border:1px solid #f0e5da;position:relative}
    .step .num{display:inline-flex;width:34px;height:34px;border-radius:50%;align-items:center;justify-content:center;background:linear-gradient(135deg,var(--brand),#ff8a5b);color:#fff;font-weight:800;margin-bottom:12px}
    .step h3{margin:0 0 8px;font-size:16px}
    .step p{margin:0;color:var(--muted);font-size:14px;line-height:1.7}
    .table-wrap{overflow-x:auto;border-radius:var(--radius);border:1px solid var(--line);box-shadow:var(--shadow);background:#fff}
    table{width:100%;border-collapse:collapse;min-width:780px}
    th,td{padding:16px 14px;border-bottom:1px solid #f0e6dd;text-align:left;vertical-align:top}
    th{background:#fff7f3;font-size:14px}
    td{color:#374151}
    .rating{font-weight:800;color:#b42318}
    .pill{display:inline-flex;align-items:center;padding:6px 10px;border-radius:999px;background:#eef7ff;color:#1d4ed8;font-size:12px;font-weight:700}
    .split{display:grid;grid-template-columns:1.15fr .85fr;gap:16px}
    .price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .price{padding:22px;position:relative;overflow:hidden}
    .price.featured{border-color:#ffb8c4;box-shadow:0 20px 40px rgba(255,77,109,.12)}
    .price h3{margin:0 0 8px}
    .price .num{font-size:30px;font-weight:900;color:#111827}
    .price ul{margin:14px 0 0;padding-left:18px;color:var(--muted);line-height:1.8}
    .reviews,.articles,.faq,.network-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
    .review .meta,.article .meta{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:10px}
    .review .name{font-weight:800}
    .review .role,.article .date{font-size:12px;color:var(--muted)}
    .quote{padding:18px;background:linear-gradient(180deg,#fff,#fff9f7)}
    .faq-item{overflow:hidden}
    .faq-btn{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 20px;background:none;border:0;color:var(--text);font-size:16px;font-weight:700;text-align:left;cursor:pointer}
    .faq-panel{max-height:0;overflow:hidden;transition:max-height .3s ease}
    .faq-panel p{margin:0;padding:0 20px 18px;color:var(--muted);line-height:1.8}
    .faq-item.open .faq-panel{max-height:220px}
    .faq-item.open .faq-btn .arrow{transform:rotate(180deg)}
    .arrow{transition:.25s}
    .articles .article{padding:18px}
    .article h3{margin:0 0 8px;font-size:17px}
    .article p{margin:0;color:var(--muted);line-height:1.75}
    .form-wrap{padding:22px}
    form{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
    .field{display:grid;gap:8px}
    .field.full{grid-column:1/-1}
    label{font-size:14px;font-weight:700;color:#374151}
    input,select,textarea{width:100%;border:1px solid #d8dce3;background:#fff;border-radius:14px;padding:13px 14px;font:inherit;color:var(--text);outline:none;transition:.2s}
    input:focus,select:focus,textarea:focus{border-color:#ff8ea0;box-shadow:0 0 0 4px rgba(255,77,109,.1)}
    textarea{min-height:124px;resize:vertical}
    .submit-row{grid-column:1/-1;display:flex;flex-wrap:wrap;gap:12px;align-items:center}
    .support{display:grid;grid-template-columns:1fr 1fr;gap:16px}
    .contact-card{padding:22px}
    .contact-card h3{margin:0 0 10px}
    .contact-list{margin:0;padding:0;list-style:none;display:grid;gap:10px}
    .contact-list li{display:flex;justify-content:space-between;gap:14px;padding:12px 0;border-bottom:1px dashed #eee0d5;color:var(--muted)}
    .contact-list li strong{color:var(--text)}
    .footer{margin-top:8px;background:#111827;color:#e5e7eb;padding:26px 0 30px}
    .footer a{color:#fff}
    .footer-grid{display:grid;grid-template-columns:1.2fr .8fr .9fr;gap:18px}
    .footer h3{margin:0 0 10px;font-size:16px;color:#fff}
    .footer p,.footer li{color:#cbd5e1;line-height:1.8}
    .footer ul{margin:0;padding-left:18px}
    .footer-bottom{margin-top:16px;padding-top:14px;border-top:1px solid rgba(255,255,255,.12);font-size:13px;color:#cbd5e1}
    .floating{position:fixed;right:16px;bottom:16px;z-index:60;display:grid;gap:10px}
    .floating a,.floating button{width:52px;height:52px;border-radius:16px;border:0;display:grid;place-items:center;box-shadow:0 14px 28px rgba(0,0,0,.16);cursor:pointer}
    .floating .wx{background:linear-gradient(135deg,#10b981,#0ea5e9);color:#fff}
    .floating .top{background:#fff;color:#111827;border:1px solid var(--line)}
    .mobile-panel{display:none}
    .fade-up{opacity:0;transform:translateY(18px);transition:.6s ease}
    .fade-up.in{opacity:1;transform:none}
    .media-row{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
    .media-row img{border-radius:18px;border:1px solid var(--line);box-shadow:var(--shadow)}
    .timeline{display:grid;gap:12px}
    .timeline li{list-style:none;padding:16px 18px}
    .timeline strong{display:block;margin-bottom:6px}
    .network-grid .network,.compare,.timeline li{padding:18px}
    .network-grid .network h3,.compare h3{margin:0 0 8px}
    .accordion-note{font-size:13px;color:var(--muted);margin-top:10px}
    @media (max-width: 1024px){
      .hero-grid,.split,.support,.footer-grid,.grid-4,.grid-3,.workflow,.price-grid,.reviews,.articles,.network-grid,.media-row{grid-template-columns:1fr 1fr}
    }
    @media (max-width: 860px){
      .nav-links,.nav-cta{display:none}
      .menu-btn{display:inline-grid;place-items:center}
      .mobile-panel{display:none;padding:0 0 14px}
      .mobile-panel.open{display:block}
      .mobile-panel .stack{display:grid;gap:10px;padding:12px 0 2px}
      .mobile-panel a{padding:12px 14px;border-radius:14px;background:#fff;border:1px solid var(--line);font-weight:600}
      .hero-grid,.split,.support,.footer-grid,.grid-4,.grid-3,.workflow,.price-grid,.reviews,.articles,.network-grid,.media-row,form{grid-template-columns:1fr}
      .hero-copy{padding:24px}
      .hero-stats{grid-template-columns:1fr}
      .section-head{flex-direction:column;align-items:flex-start}
    }
    @media (max-width: 540px){
      .container{width:min(var(--max),calc(100% - 24px))}
      h1{font-size:30px}
      .section-head h2{font-size:24px}
      .btn{width:100%}
      .hero-actions,.submit-row{flex-direction:column;align-items:stretch}
      .floating{right:12px;bottom:12px}
    }