:root{
      --bg:#f6f7fb;
      --panel:#ffffff;
      --panel-2:#fff7f1;
      --text:#172033;
      --muted:#5f6b85;
      --line:#e8ecf4;
      --brand:#ff4d7d;
      --brand-2:#7c4dff;
      --brand-3:#ff8a3d;
      --shadow:0 18px 48px rgba(24,39,75,.10);
      --shadow-soft:0 10px 28px rgba(24,39,75,.08);
      --radius:20px;
      --radius-sm:14px;
      --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(255,77,125,.12), transparent 24%),
        radial-gradient(circle at top right, rgba(124,77,255,.10), transparent 26%),
        linear-gradient(180deg, #fff 0%, #f7f8fc 35%, #f4f6fb 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:50;
      backdrop-filter:saturate(180%) blur(16px);
      background:rgba(255,255,255,.82);
      border-bottom:1px solid rgba(231,235,244,.9);
    }
    .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:44px;height:44px;object-fit:contain; border-radius:12px; background:#fff; box-shadow:var(--shadow-soft)}
    .brand .name{font-weight:800; font-size:18px; letter-spacing:.2px}
    .brand .sub{font-size:12px; color:var(--muted); margin-top:2px}
    .nav-right{display:flex; align-items:center; gap:14px}
    .menu{display:flex; align-items:center; gap:18px; flex-wrap:wrap; justify-content:flex-end}
    .menu a{font-size:14px; color:#32405d; font-weight:600; padding:8px 10px; border-radius:999px}
    .menu a:hover{background:#fff0f5; color:#d53061}
    .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),var(--brand-2)); color:#fff; box-shadow:0 12px 24px rgba(255,77,125,.24)}
    .btn-primary:hover{transform:translateY(-2px); box-shadow:0 16px 28px rgba(255,77,125,.28)}
    .btn-secondary{background:#fff; color:#29344b; border-color:#dde3ee}
    .btn-secondary:hover{border-color:#ffb4c6; color:#d53061; transform:translateY(-1px)}
    .mobile-toggle{display:none; background:#fff; border:1px solid #dfe6f0; width:44px; height:44px; border-radius:12px; align-items:center; justify-content:center; cursor:pointer}
    .mobile-toggle span,.mobile-toggle span::before,.mobile-toggle span::after{
      content:""; display:block; width:18px; height:2px; background:#27324a; border-radius:2px; position:relative;
    }
    .mobile-toggle span::before{position:absolute; top:-6px}
    .mobile-toggle span::after{position:absolute; top:6px}
    .mobile-panel{display:none; padding:0 0 16px}
    .mobile-panel .menu{display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:10px}
    .mobile-panel .menu a{background:#fff; border:1px solid #edf0f6; text-align:center}
    .hero{padding:42px 0 22px}
    .hero-grid{display:grid; grid-template-columns:1.15fr .85fr; gap:24px; align-items:stretch}
    .hero-main,.hero-side,.section-card,.info-card,.feature-card,.step-card,.review-card,.article-card,.faq-item,.timeline-item,.price-card,.network-card,.compare-card,.form-card{
      background:rgba(255,255,255,.92); border:1px solid rgba(232,236,244,.95); border-radius:var(--radius); box-shadow:var(--shadow)
    }
    .hero-main{padding:34px; position:relative; overflow:hidden}
    .hero-main::before{
      content:""; position:absolute; inset:auto -120px -140px auto; width:320px; height:320px; border-radius:50%;
      background:radial-gradient(circle, rgba(255,77,125,.18), rgba(255,77,125,0) 68%);
    }
    .eyebrow{display:inline-flex; align-items:center; gap:8px; background:#fff3f7; color:#cc2c5b; border:1px solid #ffd3df; border-radius:999px; padding:8px 12px; font-size:13px; font-weight:700}
    h1{margin:16px 0 12px; font-size:clamp(34px, 5vw, 56px); line-height:1.06; letter-spacing:-.02em}
    .lead{margin:0; color:var(--muted); font-size:16px; line-height:1.8; max-width:60ch}
    .hero-actions{display:flex; flex-wrap:wrap; gap:12px; margin:24px 0 20px}
    .hero-points{display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:12px; margin-top:24px}
    .point{padding:14px; background:linear-gradient(180deg,#fff,#fff8fb); border:1px solid #f1dfe7; border-radius:16px}
    .point strong{display:block; font-size:18px; margin-bottom:4px}
    .point span{color:var(--muted); font-size:13px; line-height:1.5}
    .hero-side{padding:18px; display:grid; gap:12px}
    .mini-panel{padding:18px; border-radius:18px; background:linear-gradient(180deg,#fff,#fff7f1); border:1px solid #f4e4d5}
    .mini-title{font-size:15px; font-weight:800; margin:0 0 10px}
    .mini-list{margin:0; padding:0; list-style:none; display:grid; gap:10px}
    .mini-list li{display:flex; justify-content:space-between; gap:12px; color:#2b364f; font-size:14px; padding:10px 12px; background:#fff; border:1px solid #edf0f6; border-radius:12px}
    .mini-list b{color:#182238}
    .stats{padding:20px 0 4px}
    .section-head{display:flex; justify-content:space-between; align-items:end; gap:16px; margin:0 0 18px}
    .section-head h2{margin:0; font-size:28px; line-height:1.2}
    .section-head p{margin:0; color:var(--muted); max-width:64ch}
    .stats-grid,.feature-grid,.review-grid,.article-grid,.network-grid,.price-grid,.gallery-grid,.timeline-grid{display:grid; gap:16px}
    .stats-grid{grid-template-columns:repeat(4,minmax(0,1fr))}
    .info-card{padding:22px}
    .info-card .num{font-size:30px; font-weight:900; background:linear-gradient(135deg,var(--brand),var(--brand-2)); -webkit-background-clip:text; color:transparent}
    .info-card .label{margin-top:6px; font-weight:700}
    .info-card p{margin:8px 0 0; color:var(--muted); font-size:14px; line-height:1.7}
    .feature-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
    .feature-card{padding:22px}
    .feature-card h3{margin:10px 0 8px; font-size:18px}
    .feature-card p,.section-copy,.muted{color:var(--muted); line-height:1.8}
    .pill-row{display:flex; flex-wrap:wrap; gap:8px; margin-top:14px}
    .pill{padding:7px 10px; border-radius:999px; background:#f7f8fd; border:1px solid #e6eaf4; font-size:12px; color:#3a4760}
    .split{display:grid; grid-template-columns:1fr 1fr; gap:16px; align-items:start}
    .section{padding:22px 0}
    .section-card{padding:24px}
    .gallery-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
    .gallery-grid img{border-radius:18px; border:1px solid #edf0f6; box-shadow:var(--shadow-soft)}
    .step-grid{display:grid; grid-template-columns:repeat(4,minmax(0,1fr)); gap:16px}
    .step-card{padding:22px; position:relative}
    .step-card .idx{display:inline-flex; width:34px; height:34px; border-radius:50%; align-items:center; justify-content:center; font-weight:800; color:#fff; background:linear-gradient(135deg,var(--brand),var(--brand-2))}
    .step-card h3{margin:12px 0 8px; font-size:17px}
    .table-wrap{overflow:auto; border-radius:18px; border:1px solid #e6ebf4; background:#fff}
    table{width:100%; border-collapse:collapse; min-width:760px}
    th,td{padding:15px 14px; text-align:left; border-bottom:1px solid #edf1f7; vertical-align:top}
    th{background:#fff7fb; font-size:14px}
    td{font-size:14px; color:#34415d}
    .highlight{font-weight:800; color:#cb2459}
    .compare-card{padding:24px}
    .rating{display:flex; flex-wrap:wrap; gap:12px; margin:14px 0 0}
    .rating .badge{background:#fff0f5; color:#c6285c; border:1px solid #ffd4e0; border-radius:999px; padding:8px 12px; font-weight:800}
    .price-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
    .price-card{padding:22px}
    .price-card .price{font-size:28px; font-weight:900; color:#1d2740}
    .price-card ul{margin:14px 0 0; padding-left:18px; color:var(--muted); line-height:1.8}
    .network-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
    .network-card{padding:22px}
    .network-card h3{margin:0 0 8px}
    .timeline-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
    .timeline-item{padding:22px; border-left:4px solid #ff4d7d}
    .timeline-item h3{margin:0 0 8px}
    .review-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
    .review-card{padding:22px}
    .stars{color:#ff9b1a; letter-spacing:2px; font-size:16px}
    .article-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
    .article-card{padding:22px}
    .article-card .tag{display:inline-block; margin-bottom:10px; font-size:12px; color:#c1295b; background:#fff0f5; border:1px solid #ffd4e0; border-radius:999px; padding:6px 10px}
    .faq-list{display:grid; gap:12px}
    .faq-item{overflow:hidden}
    .faq-q{width:100%; border:0; background:transparent; padding:18px 20px; text-align:left; display:flex; justify-content:space-between; gap:16px; align-items:center; cursor:pointer; font-size:16px; font-weight:700; color:#20304c}
    .faq-a{max-height:0; overflow:hidden; transition:max-height .3s ease; color:var(--muted); padding:0 20px}
    .faq-item.open .faq-a{max-height:200px; padding-bottom:18px}
    .faq-item.open .faq-q .arrow{transform:rotate(180deg)}
    .arrow{transition:transform .25s ease; color:#8a93a8}
    .form-grid{display:grid; grid-template-columns:1.05fr .95fr; gap:16px}
    .form-card{padding:24px}
    form{display:grid; gap:12px}
    .field{display:grid; gap:8px}
    label{font-weight:700; font-size:14px}
    input,select,textarea{
      width:100%; border:1px solid #dfe5ef; background:#fff; color:#172033;
      border-radius:14px; padding:13px 14px; font:inherit; outline:none;
    }
    input:focus,select:focus,textarea:focus{border-color:#ff7ea0; box-shadow:0 0 0 4px rgba(255,77,125,.10)}
    textarea{min-height:120px; resize:vertical}
    .contact-box{padding:24px; background:linear-gradient(180deg,#fff,#fff7fb); border:1px solid #f0dfe8; border-radius:var(--radius); box-shadow:var(--shadow)}
    .contact-list{display:grid; gap:10px; margin:14px 0 0; padding:0; list-style:none}
    .contact-list li{display:flex; justify-content:space-between; gap:12px; padding:12px 14px; background:#fff; border:1px solid #edf0f6; border-radius:14px}
    .tag-cloud{display:flex; flex-wrap:wrap; gap:10px}
    .tag-cloud span{padding:9px 12px; border-radius:999px; background:#fff; border:1px solid #e7ebf4; color:#31405d; font-size:13px}
    footer{margin-top:16px; padding:24px 0 30px; border-top:1px solid #e7ebf4; background:#fff}
    footer,footer a,footer p{color:#2b364f}
    .footer-grid{display:grid; grid-template-columns:1.2fr .8fr; gap:16px}
    .footer-note{color:#5b6781; line-height:1.8; font-size:14px}
    .footer-links{display:flex; flex-wrap:wrap; gap:10px}
    .footer-links a{padding:8px 10px; background:#f7f8fd; border:1px solid #e6eaf4; border-radius:999px; font-size:13px}
    .floating{
      position:fixed; right:16px; bottom:16px; z-index:60; display:grid; gap:10px;
    }
    .float-btn{
      width:52px; height:52px; border-radius:16px; display:flex; align-items:center; justify-content:center;
      background:linear-gradient(135deg,var(--brand),var(--brand-2)); color:#fff; box-shadow:var(--shadow); font-weight:800
    }
    .kefu{
      position:fixed; left:16px; bottom:16px; z-index:60; width:76px; display:grid; gap:8px; justify-items:center;
    }
    .kefu .card{
      background:#fff; border:1px solid #e7ebf4; border-radius:16px; padding:10px; box-shadow:var(--shadow-soft); text-align:center
    }
    .kefu img{width:100%; border-radius:12px}
    .reveal{opacity:0; transform:translateY(14px); transition:.6s ease}
    .reveal.visible{opacity:1; transform:none}
    @media (max-width: 1024px){
      .hero-grid,.split,.form-grid,.footer-grid{grid-template-columns:1fr}
      .stats-grid,.feature-grid,.step-grid,.price-grid,.network-grid,.timeline-grid,.review-grid,.article-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
      .menu{display:none}
      .mobile-toggle{display:inline-flex}
      .nav-right{margin-left:auto}
    }
    @media (max-width: 720px){
      .container{width:min(var(--container), calc(100% - 24px))}
      .hero{padding-top:24px}
      .hero-main,.hero-side,.section-card,.compare-card,.form-card,.contact-box{padding:20px}
      .hero-points,.stats-grid,.feature-grid,.step-grid,.price-grid,.network-grid,.timeline-grid,.review-grid,.article-grid,.gallery-grid{grid-template-columns:1fr}
      .section-head{align-items:start; flex-direction:column}
      .nav{padding:12px 0}
      .brand .sub{display:none}
      .kefu{left:10px; bottom:10px; width:68px}
      .floating{right:10px; bottom:10px}
      .mobile-panel.open{display:block}
      h1{font-size:31px}
      .lead{font-size:15px}
    }