:root{
      --bg:#f7f4ef;
      --bg2:#fffaf2;
      --card:#ffffff;
      --line:#eadfce;
      --text:#1f2937;
      --muted:#5b6472;
      --brand:#ff6a4d;
      --brand2:#5b7cff;
      --brand3:#17b8a6;
      --shadow:0 18px 40px rgba(42,52,73,.08);
      --shadow2:0 12px 28px rgba(42,52,73,.10);
      --radius:22px;
      --radius2:16px;
      --max:1180px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family: -apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;
      color:var(--text);
      background:
        radial-gradient(circle at top left, rgba(255,106,77,.10), transparent 26%),
        radial-gradient(circle at top right, rgba(91,124,255,.10), transparent 22%),
        linear-gradient(180deg, #fffdf9 0%, var(--bg) 30%, #fff 100%);
      line-height:1.65;
    }
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%;height:auto}
    .container{width:min(100% - 32px, var(--max)); margin:0 auto}
    .topbar{
      position:sticky; top:0; z-index:60;
      backdrop-filter:saturate(160%) blur(14px);
      background:rgba(247,244,239,.84);
      border-bottom:1px solid rgba(234,223,206,.8);
    }
    .nav{
      display:flex; align-items:center; justify-content:space-between; gap:18px;
      min-height:74px;
    }
    .brand{display:flex; align-items:center; gap:12px; min-width:0}
    .brand img{width:42px; height:42px; object-fit:contain}
    .brand strong{display:block; font-size:18px; line-height:1.1}
    .brand span{display:block; font-size:12px; color:var(--muted)}
    .menu-btn{
      display:none; border:1px solid var(--line); background:#fff; color:var(--text);
      border-radius:12px; padding:10px 12px; box-shadow:var(--shadow); cursor:pointer
    }
    .navlinks{display:flex; align-items:center; gap:16px; flex-wrap:wrap; justify-content:flex-end}
    .navlinks a{font-size:14px; color:var(--muted); padding:8px 0; position:relative}
    .navlinks a::after{
      content:""; position:absolute; left:0; bottom:0; width:0; height:2px; background:linear-gradient(90deg,var(--brand),var(--brand2));
      transition:.25s ease
    }
    .navlinks a:hover{color:var(--text)}
    .navlinks a:hover::after{width:100%}
    .hero{padding:30px 0 18px}
    .hero-grid{
      display:grid; grid-template-columns:1.18fr .82fr; gap:22px; align-items:stretch
    }
    .hero-main,.hero-side,.section-card,.info-card,.form-card,.review-card,.case-card,.article-card,.faq-item,.compare-card,.price-card,.timeline-card,.network-card,.footer-card{
      background:var(--card); border:1px solid rgba(234,223,206,.9); border-radius:var(--radius); box-shadow:var(--shadow)
    }
    .hero-main{padding:34px; position:relative; overflow:hidden}
    .hero-main::before,.hero-main::after{
      content:""; position:absolute; border-radius:999px; pointer-events:none
    }
    .hero-main::before{width:230px;height:230px;background:radial-gradient(circle, rgba(255,106,77,.12), transparent 68%); right:-50px; top:-50px}
    .hero-main::after{width:180px;height:180px;background:radial-gradient(circle, rgba(91,124,255,.12), transparent 68%); left:-50px; bottom:-40px}
    .eyebrow{
      display:inline-flex; gap:8px; align-items:center;
      padding:8px 14px; border-radius:999px; background:#fff7f2; color:#b94d33; font-weight:700; font-size:13px;
      border:1px solid #ffd3c7
    }
    h1{font-size:clamp(32px, 5vw, 54px); line-height:1.08; margin:18px 0 14px}
    .lead{font-size:16px; color:var(--muted); max-width:60ch; margin:0}
    .hero-actions{display:flex; flex-wrap:wrap; gap:12px; margin-top:22px}
    .btn{
      display:inline-flex; align-items:center; justify-content:center; gap:8px;
      padding:13px 18px; border-radius:14px; font-weight:700; border:1px solid transparent; transition:.22s ease;
      cursor:pointer
    }
    .btn-primary{background:linear-gradient(135deg,var(--brand),#ff8a5f); color:#fff; box-shadow:0 14px 26px rgba(255,106,77,.22)}
    .btn-secondary{background:#fff; color:var(--text); border-color:var(--line)}
    .btn:hover{transform:translateY(-2px); box-shadow:var(--shadow2)}
    .hero-points{display:grid; grid-template-columns:repeat(3,1fr); gap:12px; margin-top:22px}
    .mini{
      background:rgba(255,255,255,.72); border:1px solid rgba(234,223,206,.9); border-radius:18px; padding:14px
    }
    .mini b{display:block; font-size:18px; margin-bottom:4px}
    .mini span{font-size:13px; color:var(--muted)}
    .hero-side{padding:18px; display:grid; gap:14px}
    .side-panel{padding:18px; border-radius:18px; background:linear-gradient(180deg,#fff 0%, #fff9f2 100%); border:1px solid var(--line)}
    .side-panel h3{margin:0 0 10px; font-size:18px}
    .tag-cloud{display:flex; flex-wrap:wrap; gap:8px}
    .tag{padding:8px 10px; border-radius:999px; background:#fff; border:1px solid var(--line); color:var(--muted); font-size:13px}
    section{padding:14px 0}
    .section-card{padding:24px}
    .section-head{display:flex; align-items:end; justify-content:space-between; gap:16px; margin-bottom:18px}
    .section-head h2{margin:0; font-size:28px}
    .section-head p{margin:0; color:var(--muted); max-width:68ch}
    .grid-4{display:grid; grid-template-columns:repeat(4,1fr); gap:16px}
    .grid-3{display:grid; grid-template-columns:repeat(3,1fr); gap:16px}
    .info-card,.case-card,.article-card,.review-card,.compare-card,.price-card,.timeline-card,.network-card{padding:18px}
    .info-card h3,.case-card h3,.article-card h3,.review-card h3{margin:0 0 8px; font-size:18px}
    .info-card p,.case-card p,.article-card p,.review-card p,.timeline-card p,.network-card p{margin:0; color:var(--muted)}
    .metric{display:flex; align-items:flex-end; justify-content:space-between; gap:10px; margin-top:12px}
    .metric strong{font-size:28px}
    .accent{color:var(--brand)}
    .two-col{display:grid; grid-template-columns:1fr 1fr; gap:16px}
    .steps{display:grid; grid-template-columns:repeat(4,1fr); gap:16px}
    .step{
      padding:18px; border-radius:18px; background:#fff; border:1px solid var(--line); position:relative
    }
    .step .num{display:inline-flex; width:34px; height:34px; align-items:center; justify-content:center; border-radius:12px; background:linear-gradient(135deg, rgba(255,106,77,.14), rgba(91,124,255,.14)); color:#233; font-weight:800; margin-bottom:10px}
    table{width:100%; border-collapse:collapse; min-width:760px}
    th,td{padding:14px 12px; text-align:left; border-bottom:1px solid var(--line); vertical-align:top}
    th{background:#fff8f1; font-size:14px}
    .table-wrap{overflow-x:auto; border:1px solid var(--line); border-radius:18px; background:#fff}
    .rating{
      display:inline-flex; gap:4px; align-items:center; padding:8px 12px; border-radius:999px; background:#fff7ed; color:#a85a00; font-weight:700
    }
    .stars{color:#ffad33; letter-spacing:1px}
    .compare-grid{display:grid; grid-template-columns:1.1fr .9fr; gap:16px}
    .split-list{display:grid; gap:10px}
    .split-item{display:flex; gap:10px; align-items:flex-start; padding:12px 0; border-bottom:1px dashed var(--line)}
    .split-item:last-child{border-bottom:0}
    .split-item i{width:20px;height:20px;border-radius:50%;background:linear-gradient(135deg,var(--brand),var(--brand2));display:inline-block; margin-top:3px}
    .faq{display:grid; gap:12px}
    .faq-item{overflow:hidden}
    .faq-q{
      width:100%; background:none; border:0; padding:18px; text-align:left; cursor:pointer; display:flex; justify-content:space-between; gap:12px; align-items:center;
      color:var(--text); font-size:16px; font-weight:700
    }
    .faq-a{max-height:0; overflow:hidden; transition:max-height .28s ease; padding:0 18px}
    .faq-item.open .faq-a{max-height:220px; padding-bottom:18px}
    .faq-item.open .faq-q .chev{transform:rotate(180deg)}
    .chev{transition:.25s ease; color:var(--muted)}
    .form{display:grid; gap:14px}
    .fields{display:grid; grid-template-columns:repeat(2,1fr); gap:12px}
    label{display:block; font-size:13px; color:var(--muted); margin-bottom:8px}
    input,select,textarea{
      width:100%; border:1px solid var(--line); background:#fff; border-radius:14px; padding:13px 14px; font:inherit; color:var(--text); outline:none
    }
    textarea{min-height:120px; resize:vertical}
    input:focus,select:focus,textarea:focus{border-color:#ffb29e; box-shadow:0 0 0 4px rgba(255,106,77,.08)}
    .foot{
      padding:18px 0 28px;
    }
    .footer-card{padding:24px}
    .footer-grid{display:grid; grid-template-columns:1.05fr .95fr .8fr; gap:18px}
    .footer-links{display:flex; flex-wrap:wrap; gap:10px}
    .footer-links a{padding:8px 10px; border-radius:10px; background:#fff7ef; border:1px solid #f1d8c6; color:#7d4f35; font-size:13px}
    .small{font-size:13px; color:var(--muted)}
    .floating{
      position:fixed; right:16px; bottom:18px; z-index:80; display:grid; gap:10px
    }
    .float-btn{
      width:52px; height:52px; border-radius:16px; border:1px solid var(--line); background:#fff; box-shadow:var(--shadow2);
      display:grid; place-items:center; font-weight:800; color:#344; cursor:pointer
    }
    .float-contact{
      position:fixed; right:16px; bottom:84px; z-index:80; width:min(320px, calc(100vw - 32px));
      background:#fff; border:1px solid var(--line); box-shadow:var(--shadow2); border-radius:20px; overflow:hidden; display:none
    }
    .float-contact.open{display:block}
    .float-contact .inner{padding:16px}
    .float-contact h3{margin:0 0 8px}
    .float-contact .qrcode{display:flex; gap:14px; align-items:center}
    .float-contact .qrcode img{width:88px; height:88px; object-fit:cover; border-radius:14px; border:1px solid var(--line)}
    .scroll-in{opacity:0; transform:translateY(16px); transition:.55s ease}
    .scroll-in.visible{opacity:1; transform:none}
    .timeline{display:grid; gap:12px}
    .timeline-item{display:flex; gap:14px; align-items:flex-start; padding:14px 0; border-bottom:1px solid var(--line)}
    .timeline-item:last-child{border-bottom:0}
    .timeline-dot{width:12px; height:12px; margin-top:7px; border-radius:50%; background:linear-gradient(135deg,var(--brand),var(--brand2)); box-shadow:0 0 0 6px rgba(255,106,77,.08)}
    .article-list{display:grid; grid-template-columns:repeat(2,1fr); gap:16px}
    .article-card .meta{font-size:13px; color:var(--muted); margin-top:10px}
    .logo-inline{display:flex; align-items:center; gap:10px; flex-wrap:wrap}
    .logo-inline img{width:44px; height:44px; object-fit:contain}
    .sidenote{padding:14px; border-radius:16px; background:linear-gradient(180deg,#fff 0%,#fff8f0 100%); border:1px solid var(--line)}
    .review-meta{margin-top:12px; display:flex; justify-content:space-between; gap:8px; color:var(--muted); font-size:13px}
    .anchor-list{display:flex; flex-wrap:wrap; gap:8px}
    .anchor-list a{padding:8px 12px; border-radius:12px; background:#fff; border:1px solid var(--line); color:var(--text); font-size:13px}
    @media (max-width: 1024px){
      .hero-grid,.compare-grid,.footer-grid,.two-col,.grid-4,.grid-3,.steps,.article-list{grid-template-columns:1fr 1fr}
      .hero-main{padding:28px}
    }
    @media (max-width: 760px){
      .navlinks{display:none}
      .menu-btn{display:inline-flex}
      .navlinks.open{
        display:flex; position:absolute; left:16px; right:16px; top:78px; background:#fff; padding:14px; border:1px solid var(--line);
        border-radius:18px; box-shadow:var(--shadow2); flex-direction:column; align-items:flex-start
      }
      .hero-grid,.compare-grid,.footer-grid,.two-col,.grid-4,.grid-3,.steps,.article-list,.fields{grid-template-columns:1fr}
      .hero{padding-top:18px}
      .hero-main,.section-card{padding:20px}
      .hero-points{grid-template-columns:1fr}
      .section-head{flex-direction:column; align-items:flex-start}
      table{min-width:860px}
    }