:root{
      --bg:#f6f2ea;
      --bg2:#fffaf2;
      --card:#ffffff;
      --text:#1f2937;
      --muted:#5f6b7a;
      --line:#eadfce;
      --primary:#ff4d6d;
      --primary2:#6c5ce7;
      --accent:#ffb703;
      --green:#1b998b;
      --shadow:0 18px 50px rgba(31,41,55,.08);
      --shadow2:0 10px 24px rgba(255,77,109,.12);
      --radius:22px;
      --radius2:16px;
      --container:1180px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Segoe UI, Roboto, Helvetica, Arial, sans-serif;
      color:var(--text);
      background:
        radial-gradient(circle at top left, rgba(255,77,109,.08), transparent 28%),
        radial-gradient(circle at top right, rgba(108,92,231,.10), transparent 25%),
        linear-gradient(180deg, #fffdf9 0%, #f7f2ea 34%, #f6f2ea 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:blur(14px);
      background:rgba(255,250,242,.86);
      border-bottom:1px solid rgba(234,223,206,.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:42px; height:42px; object-fit:contain; border-radius:12px; background:#fff; box-shadow:0 8px 20px rgba(0,0,0,.06)}
    .brand strong{font-size:1.02rem}
    .brand span{display:block; font-size:.82rem; color:var(--muted)}
    .nav-links{display:flex; flex-wrap:wrap; justify-content:flex-end; gap:14px; align-items:center}
    .nav-links a{font-size:.94rem; color:#344054; padding:8px 10px; border-radius:999px}
    .nav-links a:hover,.nav-links a:focus-visible{background:rgba(255,77,109,.09); color:var(--primary)}
    .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:11px 16px;
      font-weight:700; cursor:pointer; transition:.25s ease;
      box-shadow:none; white-space:nowrap
    }
    .btn-primary{background:linear-gradient(135deg,var(--primary),#ff7a59); color:#fff; box-shadow:var(--shadow2)}
    .btn-secondary{background:#fff; color:var(--text); border-color:var(--line)}
    .btn:hover{transform:translateY(-2px)}
    .menu-btn{display:none; background:#fff; border:1px solid var(--line); border-radius:12px; width:44px; height:44px}
    .hero{padding:34px 0 18px}
    .hero-grid{display:grid; grid-template-columns:1.2fr .8fr; gap:22px; align-items:stretch}
    .hero-main,.hero-side,.section-card,.pricing-card,.faq-item,.review-card,.feature-card,.case-card,.article-card,.form-card,.compare-card,.timeline-card,.tag-card,.network-card{background:rgba(255,255,255,.88); border:1px solid rgba(234,223,206,.9); box-shadow:var(--shadow); border-radius:var(--radius)}
    .hero-main{padding:34px; position:relative; overflow:hidden}
    .hero-main::before,.hero-main::after{
      content:""; position:absolute; border-radius:50%; filter:blur(5px); pointer-events:none
    }
    .hero-main::before{width:260px;height:260px; background:rgba(255,77,109,.12); right:-60px; top:-70px}
    .hero-main::after{width:200px;height:200px; background:rgba(108,92,231,.12); left:-70px; bottom:-80px}
    .eyebrow{display:inline-flex; align-items:center; gap:8px; padding:8px 12px; border-radius:999px; background:rgba(255,183,3,.12); color:#8a5a00; font-weight:700; font-size:.88rem}
    h1{margin:16px 0 14px; font-size:clamp(2rem, 4vw, 4rem); line-height:1.08; letter-spacing:-.03em}
    .lead{font-size:1.05rem; line-height:1.8; color:var(--muted); max-width:62ch}
    .hero-actions{display:flex; flex-wrap:wrap; gap:12px; margin:24px 0 22px}
    .hero-stats{display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:14px; margin-top:18px}
    .stat{padding:16px; border-radius:18px; background:linear-gradient(180deg,#fff, #fff7f6); border:1px solid rgba(255,77,109,.10)}
    .stat b{display:block; font-size:1.3rem; margin-bottom:4px}
    .stat span{font-size:.92rem; color:var(--muted)}
    .hero-side{padding:22px; display:grid; gap:14px; align-content:start}
    .mini-card{padding:18px; border-radius:18px; background:linear-gradient(135deg, rgba(255,77,109,.10), rgba(108,92,231,.09)); border:1px solid rgba(108,92,231,.12)}
    .mini-card h3{margin:0 0 6px; font-size:1.02rem}
    .mini-card p{margin:0; color:var(--muted); line-height:1.75; font-size:.95rem}
    .section{padding:16px 0}
    .section-head{display:flex; justify-content:space-between; align-items:end; gap:16px; margin-bottom:16px}
    .section-head h2{margin:0; font-size:clamp(1.45rem, 2vw, 2.2rem)}
    .section-head p{margin:0; color:var(--muted); max-width:58ch; line-height:1.7}
    .section-card{padding:24px}
    .grid-3{display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:16px}
    .grid-2{display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:16px}
    .feature-card,.case-card,.article-card,.review-card,.faq-item,.compare-card,.form-card,.timeline-card,.tag-card,.network-card,.pricing-card{padding:20px}
    .feature-card h3,.case-card h3,.article-card h3,.review-card h3,.pricing-card h3,.timeline-card h3{margin:0 0 8px; font-size:1.05rem}
    .feature-card p,.case-card p,.article-card p,.review-card p,.pricing-card p,.timeline-card p,.network-card p{margin:0; color:var(--muted); line-height:1.75}
    .badge{display:inline-flex; align-items:center; gap:6px; font-size:.82rem; font-weight:700; color:#7b2cbf; background:rgba(123,44,191,.09); padding:7px 10px; border-radius:999px; margin-bottom:12px}
    .tag-cloud{display:flex; flex-wrap:wrap; gap:10px}
    .tag{padding:9px 12px; border-radius:999px; background:#fff; border:1px solid var(--line); color:#334155; font-size:.92rem}
    .steps{display:grid; grid-template-columns:repeat(4,minmax(0,1fr)); gap:16px}
    .step{padding:20px; border-radius:18px; background:linear-gradient(180deg,#fff, #fff6f4); border:1px solid rgba(255,77,109,.10)}
    .step .n{display:inline-flex; width:34px; height:34px; align-items:center; justify-content:center; border-radius:50%; background:linear-gradient(135deg,var(--primary),var(--primary2)); color:#fff; font-weight:800; margin-bottom:12px}
    .table-wrap{overflow-x:auto; border-radius:18px; border:1px solid var(--line); background:#fff}
    table{width:100%; border-collapse:collapse; min-width:760px}
    th,td{padding:14px 16px; border-bottom:1px solid #f0e6d8; text-align:left; vertical-align:top}
    th{background:#fff8f6; font-size:.95rem}
    td{color:#334155; line-height:1.7}
    .score{font-weight:800; color:var(--primary)}
    .accordion{display:grid; gap:12px}
    .faq-item{padding:0; overflow:hidden}
    .faq-q{width:100%; background:none; border:0; padding:18px 20px; font:inherit; text-align:left; color:var(--text); font-weight:700; display:flex; justify-content:space-between; gap:18px; cursor:pointer}
    .faq-a{max-height:0; overflow:hidden; transition:max-height .28s ease}
    .faq-a div{padding:0 20px 18px; color:var(--muted); line-height:1.8}
    .faq-item.active .faq-a{max-height:220px}
    .faq-item.active .faq-q span{transform:rotate(45deg)}
    .reviews,.articles,.cases,.network,.pricing,.timeline{display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:16px}
    .review-meta{display:flex; align-items:center; justify-content:space-between; gap:10px; margin-bottom:10px}
    .stars{color:#f59e0b; letter-spacing:1px}
    .avatar{width:42px; height:42px; border-radius:50%; background:linear-gradient(135deg,var(--primary),var(--accent)); color:#fff; display:grid; place-items:center; font-weight:800}
    .media{
      border-radius:18px; overflow:hidden; border:1px solid var(--line); background:#fff;
    }
    .media img{width:100%; height:auto}
    .form-grid{display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:14px}
    .field{display:grid; gap:8px}
    .field label{font-weight:700; font-size:.94rem}
    .field input,.field select,.field textarea{
      width:100%; border:1px solid var(--line); background:#fff; border-radius:14px; padding:13px 14px;
      font:inherit; color:var(--text); outline:none; transition:.2s ease
    }
    .field textarea{min-height:120px; resize:vertical}
    .field input:focus,.field select:focus,.field textarea:focus{border-color:rgba(255,77,109,.5); box-shadow:0 0 0 4px rgba(255,77,109,.08)}
    .full{grid-column:1/-1}
    .footer{
      margin-top:18px; padding:24px 0 32px; border-top:1px solid rgba(234,223,206,.95);
      background:linear-gradient(180deg, rgba(255,250,242,.5), rgba(255,250,242,.95));
      color:#243041
    }
    .footer a{color:#1d4ed8}
    .footer-grid{display:grid; grid-template-columns:1.1fr .9fr .9fr; gap:16px}
    .footer small,.footer p{color:#4b5563; line-height:1.8}
    .float-box{
      position:fixed; right:16px; bottom:16px; z-index:60; display:grid; gap:10px
    }
    .float-btn{
      width:54px; height:54px; border-radius:18px; border:1px solid rgba(234,223,206,.95); background:#fff; box-shadow:var(--shadow);
      display:grid; place-items:center; font-weight:800; color:var(--text)
    }
    .mobile-only{display:none}
    .reveal{opacity:0; transform:translateY(16px); transition:.6s ease}
    .reveal.show{opacity:1; transform:none}
    .kefu{
      display:flex; gap:14px; align-items:center
    }
    .kefu img{width:112px; border-radius:16px; border:1px solid var(--line)}
    @media (max-width: 980px){
      .hero-grid,.grid-3,.grid-2,.reviews,.articles,.cases,.network,.pricing,.timeline,.steps,.footer-grid{grid-template-columns:1fr}
      .hero-stats{grid-template-columns:1fr}
      .nav-links{display:none}
      .menu-btn{display:inline-grid; place-items:center}
      .nav-cta .btn-secondary{display:none}
      .mobile-only{display:block}
      .nav.open .nav-links{
        display:flex; position:absolute; left:0; right:0; top:100%;
        background:rgba(255,250,242,.98); border-bottom:1px solid var(--line);
        padding:14px 16px 18px; flex-direction:column; align-items:flex-start; box-shadow:0 18px 28px rgba(0,0,0,.06)
      }
      .nav{position:relative}
      .form-grid{grid-template-columns:1fr}
      .hero-main{padding:24px}
      .section-card{padding:20px}
    }