:root{
      --bg:#f7f4ee;
      --bg2:#fffaf1;
      --card:#ffffff;
      --card2:#fff4e8;
      --text:#1f2a37;
      --muted:#5f6b7a;
      --line:#e7dccb;
      --brand:#ff7a45;
      --brand2:#8b5cf6;
      --brand3:#13b8a6;
      --shadow:0 18px 50px rgba(65, 44, 23, .08);
      --radius:22px;
      --radius-sm:16px;
      --container: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 10% 10%, rgba(255,122,69,.12), transparent 24%),
        radial-gradient(circle at 90% 0%, rgba(139,92,246,.12), transparent 22%),
        radial-gradient(circle at 15% 85%, rgba(19,184,166,.10), transparent 25%),
        linear-gradient(180deg, var(--bg) 0%, var(--bg2) 100%);
      line-height:1.65;
      overflow-x:hidden;
    }
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%;height:auto}
    .container{width:min(var(--container), calc(100% - 32px));margin:0 auto}
    .site-header{
      position:sticky;top:0;z-index:50;
      backdrop-filter:saturate(150%) blur(14px);
      background:rgba(247,244,238,.82);
      border-bottom:1px solid rgba(231,220,203,.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 .logo-wrap{
      width:44px;height:44px;border-radius:14px;overflow:hidden;background:#fff;
      box-shadow:0 10px 24px rgba(17,24,39,.08);flex:none;
      display:grid;place-items:center;border:1px solid rgba(231,220,203,.8);
    }
    .brand img{width:100%;height:100%;object-fit:contain}
    .brand strong{display:block;font-size:1.02rem;line-height:1.1}
    .brand span{display:block;color:var(--muted);font-size:.82rem}
    .menu-toggle{
      display:none;border:1px solid var(--line);background:#fff;border-radius:14px;
      padding:10px 12px;color:var(--text);font-size:14px
    }
    .nav-links{display:flex;align-items:center;gap:18px;flex-wrap:wrap;justify-content:flex-end}
    .nav-links a{color:#3b4654;font-size:14px;padding:8px 10px;border-radius:999px;transition:.2s ease}
    .nav-links a:hover,.nav-links a.active{background:rgba(255,122,69,.11);color:#9b3412}
    .hero{
      padding:44px 0 22px;
      position:relative;
    }
    .hero-grid{
      display:grid;grid-template-columns:1.25fr .75fr;gap:22px;align-items:stretch;
    }
    .hero-main{
      background:
        linear-gradient(135deg, rgba(255,255,255,.92), rgba(255,247,236,.95)),
        radial-gradient(circle at top right, rgba(255,122,69,.12), transparent 30%);
      border:1px solid rgba(231,220,203,.85);
      border-radius:30px;
      padding:30px;
      box-shadow:var(--shadow);
      position:relative;overflow:hidden;
    }
    .hero-main:before,.hero-main:after{
      content:"";position:absolute;border-radius:999px;pointer-events:none;
      background:linear-gradient(135deg, rgba(255,122,69,.16), rgba(139,92,246,.12));
      filter:blur(2px);
    }
    .hero-main:before{width:210px;height:210px;right:-90px;top:-80px}
    .hero-main:after{width:140px;height:140px;left:-50px;bottom:-40px}
    .kicker{display:inline-flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--line);border-radius:999px;padding:8px 12px;font-size:13px;color:#7c3f18}
    h1{font-size:clamp(2rem, 4.8vw, 3.6rem);line-height:1.08;margin:18px 0 14px;letter-spacing:-.03em}
    .lead{font-size:1.05rem;color:#415064;max-width:64ch;margin:0 0 20px}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px}
    .btn{
      display:inline-flex;align-items:center;justify-content:center;gap:8px;
      border-radius:14px;padding:13px 18px;font-weight:700;border:1px solid transparent;
      transition:transform .2s ease, box-shadow .2s ease, background .2s ease, color .2s ease;
      cursor:pointer;
    }
    .btn:hover{transform:translateY(-2px);box-shadow:0 14px 26px rgba(27,31,38,.12)}
    .btn-primary{background:linear-gradient(135deg, var(--brand), #ffb15d);color:#fff}
    .btn-secondary{background:#fff;border-color:var(--line);color:var(--text)}
    .btn-ghost{background:rgba(139,92,246,.08);border-color:rgba(139,92,246,.16);color:#5b21b6}
    .hero-points{
      display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:24px
    }
    .point{
      background:rgba(255,255,255,.82);border:1px solid rgba(231,220,203,.8);
      border-radius:18px;padding:14px 14px 13px;min-height:106px
    }
    .point b{display:block;font-size:1.15rem;margin-bottom:4px}
    .point span{color:var(--muted);font-size:13px}
    .hero-side{
      display:grid;gap:14px
    }
    .side-card{
      background:rgba(255,255,255,.88);border:1px solid rgba(231,220,203,.9);
      border-radius:24px;padding:20px;box-shadow:var(--shadow)
    }
    .side-card h3{margin:0 0 10px;font-size:1.08rem}
    .side-card p{margin:0;color:var(--muted)}
    .tag-cloud{display:flex;flex-wrap:wrap;gap:10px}
    .tag{
      padding:8px 12px;border-radius:999px;background:#fff;border:1px solid var(--line);
      color:#374151;font-size:13px
    }
    .metric-grid,.service-grid,.case-grid,.review-grid,.article-grid,.network-grid,.process-grid,.compare-grid,.help-grid,.faq-grid,.channel-grid,.focus-grid{
      display:grid;gap:16px
    }
    .metric-grid{grid-template-columns:repeat(4,1fr)}
    .metric{
      background:linear-gradient(180deg, rgba(255,255,255,.96), rgba(255,248,240,.98));
      border:1px solid rgba(231,220,203,.88);border-radius:22px;padding:18px;box-shadow:var(--shadow)
    }
    .metric strong{display:block;font-size:1.7rem;line-height:1;color:#0f172a}
    .metric span{display:block;color:var(--muted);margin-top:8px}
    section{padding:22px 0}
    .section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:18px;margin-bottom:16px}
    .section-head h2{margin:0;font-size:1.6rem}
    .section-head p{margin:0;color:var(--muted);max-width:64ch}
    .card{
      background:rgba(255,255,255,.92);
      border:1px solid rgba(231,220,203,.88);
      border-radius:24px;
      box-shadow:var(--shadow);
    }
    .about-box{padding:24px}
    .about-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:16px}
    .about-list{display:grid;gap:12px;margin-top:14px}
    .about-item{display:flex;gap:12px;align-items:flex-start}
    .about-dot{width:12px;height:12px;border-radius:999px;background:linear-gradient(135deg,var(--brand),var(--brand2));margin-top:7px;flex:none}
    .panel{padding:22px}
    .service-grid{grid-template-columns:repeat(3,1fr)}
    .service-card,.case-card,.review-card,.article-card,.help-card,.focus-card,.network-card{padding:20px}
    .service-card h3,.case-card h3,.review-card h3,.article-card h3,.help-card h3,.focus-card h3,.network-card h3{margin:0 0 10px;font-size:1.04rem}
    .service-card p,.case-card p,.review-card p,.article-card p,.help-card p,.focus-card p,.network-card p{margin:0;color:var(--muted)}
    .service-card ul,.help-card ul{margin:14px 0 0;padding-left:18px;color:#425466}
    .service-card li,.help-card li{margin:6px 0}
    .image-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
    .image-strip img{border-radius:20px;border:1px solid rgba(231,220,203,.9);box-shadow:var(--shadow);aspect-ratio:1/1;object-fit:cover}
    .workflow{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
    .step{padding:20px;position:relative}
    .step .n{width:38px;height:38px;border-radius:12px;display:grid;place-items:center;background:linear-gradient(135deg, rgba(255,122,69,.14), rgba(139,92,246,.12));font-weight:800;margin-bottom:12px}
    .table-wrap{overflow-x:auto;border-radius:24px}
    table{width:100%;border-collapse:collapse;min-width:920px;background:#fff}
    th,td{padding:16px 14px;border-bottom:1px solid #eee3d3;text-align:left;vertical-align:top}
    th{background:#fff7ef;color:#7c2d12;font-size:14px}
    td{color:#344054}
    tr:hover td{background:#fffdfa}
    .compare-note{display:grid;grid-template-columns:1.08fr .92fr;gap:16px}
    .rating{
      padding:22px;background:linear-gradient(135deg, rgba(255,122,69,.10), rgba(139,92,246,.08));
      border:1px solid rgba(255,122,69,.16);border-radius:22px
    }
    .stars{color:#f59e0b;font-size:1.15rem;letter-spacing:2px}
    .focus-grid{grid-template-columns:repeat(2,1fr)}
    .focus-card{border-left:5px solid transparent;background:linear-gradient(180deg,#fff, #fffaf5)}
    .focus-card:nth-child(1){border-left-color:#ff7a45}
    .focus-card:nth-child(2){border-left-color:#8b5cf6}
    .focus-card:nth-child(3){border-left-color:#13b8a6}
    .focus-card:nth-child(4){border-left-color:#f59e0b}
    .focus-card small{display:inline-block;margin-bottom:8px;color:#92400e;font-weight:700}
    .channel-grid{grid-template-columns:repeat(3,1fr)}
    .channel-card{padding:20px}
    .channel-card .price{font-size:1.35rem;font-weight:800;color:#111827}
    .network-grid{grid-template-columns:repeat(3,1fr)}
    .network-card{min-height:172px}
    .review-grid{grid-template-columns:repeat(3,1fr)}
    .review-meta{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:10px}
    .review-tag{font-size:12px;padding:6px 10px;border-radius:999px;background:rgba(19,184,166,.10);color:#0f766e}
    .article-grid{grid-template-columns:repeat(3,1fr)}
    .article-card time{display:block;color:#7c8a99;font-size:13px;margin-bottom:8px}
    .faq-grid{gap:12px}
    details{
      background:#fff;border:1px solid rgba(231,220,203,.88);border-radius:18px;box-shadow:var(--shadow);overflow:hidden
    }
    summary{
      cursor:pointer;list-style:none;padding:18px 18px 18px 20px;font-weight:700;display:flex;align-items:center;justify-content:space-between;gap:12px
    }
    summary::-webkit-details-marker{display:none}
    summary:after{content:"+";font-size:1.25rem;color:#9a3412}
    details[open] summary:after{content:"–"}
    details .answer{padding:0 20px 18px;color:#475569}
    .contact-grid{display:grid;grid-template-columns:1fr .72fr;gap:16px}
    form{
      padding:22px
    }
    .form-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
    .field{display:flex;flex-direction:column;gap:8px}
    label{font-weight:700;font-size:14px}
    input,select,textarea{
      width:100%;border:1px solid #d9ccb8;border-radius:14px;background:#fff;padding:13px 14px;
      font:inherit;color:var(--text);outline:none;transition:border-color .2s ease, box-shadow .2s ease
    }
    textarea{min-height:124px;resize:vertical}
    input:focus,select:focus,textarea:focus{border-color:#ffb180;box-shadow:0 0 0 4px rgba(255,122,69,.12)}
    .full{grid-column:1/-1}
    .form-actions{display:flex;flex-wrap:wrap;gap:12px;align-items:center;margin-top:16px}
    .helper{color:var(--muted);font-size:13px}
    .footer{
      padding:24px 0 30px;
      border-top:1px solid rgba(231,220,203,.8);
      background:rgba(255,250,242,.96);
      color:#334155;
    }
    .footer-grid{display:grid;grid-template-columns:1.1fr .9fr 1fr;gap:18px}
    .footer h3{margin:0 0 12px;font-size:1.02rem;color:#1e293b}
    .footer a{color:#334155}
    .footer a:hover{color:#9a3412}
    .footer-links{display:flex;flex-wrap:wrap;gap:10px}
    .footer-links a{padding:8px 12px;border:1px solid var(--line);border-radius:999px;background:#fff}
    .foot-note{margin-top:18px;padding-top:16px;border-top:1px solid rgba(231,220,203,.75);font-size:13px;color:#64748b}
    .floating{
      position:fixed;right:18px;bottom:18px;z-index:60;display:flex;flex-direction:column;gap:10px
    }
    .float-btn{
      width:50px;height:50px;border-radius:16px;display:grid;place-items:center;
      background:linear-gradient(135deg, var(--brand), #ffb15d);color:#fff;border:none;box-shadow:0 16px 24px rgba(255,122,69,.28)
    }
    .float-btn.secondary{background:#fff;color:#7c2d12;border:1px solid var(--line)}
    .fade-up{opacity:0;transform:translateY(18px);transition:opacity .6s ease, transform .6s ease}
    .fade-up.in-view{opacity:1;transform:none}
    .mobile-only{display:none}
    @media (max-width: 1024px){
      .hero-grid,.about-grid,.compare-note,.contact-grid,.footer-grid{grid-template-columns:1fr}
      .metric-grid,.service-grid,.workflow,.review-grid,.article-grid,.network-grid,.channel-grid{grid-template-columns:repeat(2,1fr)}
      .image-strip{grid-template-columns:repeat(2,1fr)}
      .focus-grid{grid-template-columns:1fr}
      .hero-points{grid-template-columns:1fr}
    }
    @media (max-width: 760px){
      .container{width:min(var(--container), calc(100% - 24px))}
      .menu-toggle{display:inline-flex}
      .nav-links{
        display:none;position:absolute;left:16px;right:16px;top:68px;background:#fff;padding:14px;border:1px solid var(--line);
        border-radius:20px;box-shadow:var(--shadow);flex-direction:column;align-items:flex-start
      }
      .nav-links.open{display:flex}
      .metric-grid,.service-grid,.workflow,.review-grid,.article-grid,.network-grid,.channel-grid,.image-strip,.metric-grid,.form-grid{grid-template-columns:1fr}
      .hero-main,.panel,.about-box,.card,form,.service-card,.case-card,.review-card,.article-card,.help-card,.focus-card,.network-card,.step,.channel-card{padding:18px}
      h1{font-size:2rem}
      .section-head{flex-direction:column;align-items:flex-start}
      .mobile-only{display:inline-flex}
      .floating{right:12px;bottom:12px}
      table{min-width:760px}
    }