:root{
      --bg:#f6f8f3;
      --panel:#ffffff;
      --panel2:#f0f7ee;
      --text:#16311e;
      --muted:#5f6f62;
      --line:#d9e6d6;
      --brand:#17b857;
      --brand2:#0f8f45;
      --brand3:#dff8e7;
      --accent:#49d67a;
      --shadow:0 18px 50px rgba(20, 70, 35, .10);
      --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;
      background:
        radial-gradient(circle at top left, rgba(23,184,87,.12), transparent 26%),
        radial-gradient(circle at 80% 0%, rgba(73,214,122,.12), transparent 24%),
        linear-gradient(180deg, #fbfdf9 0%, #f4faf4 100%);
      color:var(--text);
      line-height:1.7;
    }
    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}
    .topbar, header, main, footer{position:relative; z-index:1}
    .topbar{
      border-bottom:1px solid rgba(217,230,214,.8);
      background:rgba(255,255,255,.75);
      backdrop-filter:saturate(1.2) blur(10px);
    }
    .topbar-inner, .nav-inner{
      display:flex;align-items:center;justify-content:space-between;gap:16px;
      min-height:72px;
    }
    .brand{
      display:flex;align-items:center;gap:12px;font-weight:800;letter-spacing:.2px;
    }
    .brand .mark{
      width:40px;height:40px;border-radius:12px;
      display:grid;place-items:center;
      background:linear-gradient(135deg,var(--brand),#66e28f);
      box-shadow:0 10px 24px rgba(23,184,87,.26);
      color:#fff;font-weight:900;
    }
    .brand strong{font-size:1rem}
    .brand small{display:block;color:var(--muted);font-weight:600;font-size:.78rem}
    .top-links{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
    .home-link, .ghost-btn, .primary-btn, .secondary-btn, .tag{
      display:inline-flex;align-items:center;justify-content:center;gap:8px;
      border-radius:999px;transition:.25s ease;
    }
    .home-link,.ghost-btn{
      padding:10px 14px;border:1px solid var(--line);background:#fff;color:var(--text);
    }
    .primary-btn,.secondary-btn{
      padding:12px 18px;font-weight:700;border:1px solid transparent;
    }
    .primary-btn{background:linear-gradient(135deg,var(--brand),var(--brand2));color:#fff;box-shadow:0 14px 28px rgba(23,184,87,.22)}
    .secondary-btn{background:var(--panel2);color:var(--brand2);border-color:#cfe7d0}
    .home-link:hover,.ghost-btn:hover,.secondary-btn:hover,.primary-btn:hover,.card:hover,.review-card:hover,.service-card:hover,.article-card:hover,.benefit:hover,.step:hover,.case-card:hover{
      transform:translateY(-3px);
      box-shadow:var(--shadow);
    }
    header{
      position:sticky;top:0;background:rgba(251,253,249,.86);backdrop-filter:saturate(1.1) blur(12px);
      border-bottom:1px solid rgba(217,230,214,.8);
    }
    .nav-inner{min-height:76px}
    .logo-row{display:flex;align-items:center;gap:12px}
    .logo-row img{width:54px}
    nav{display:flex;align-items:center;gap:16px}
    .menu{display:flex;align-items:center;gap:8px;flex-wrap:wrap;justify-content:flex-end}
    .menu a{
      padding:9px 12px;border-radius:999px;color:var(--muted);font-weight:650;font-size:.92rem;
    }
    .menu a:hover,.menu a.active{background:var(--brand3);color:var(--brand2)}
    .menu-toggle{display:none;border:1px solid var(--line);background:#fff;border-radius:12px;padding:10px 12px;color:var(--text)}
    .hero{
      padding:42px 0 24px;
      background:
        linear-gradient(180deg, rgba(255,255,255,.75), rgba(255,255,255,.2)),
        linear-gradient(135deg, rgba(23,184,87,.12), rgba(73,214,122,.06));
      border-bottom:1px solid rgba(217,230,214,.8);
    }
    .hero-grid{
      display:grid;grid-template-columns:1.2fr .8fr;gap:24px;align-items:stretch;
    }
    .hero-copy,.hero-panel,.card,.service-card,.step,.benefit,.case-card,.review-card,.article-card,.faq-item,.pricing-card,.contact-card,.timeline-item,.network-item,.compare-table,.form-card,.about-card,.help-card{
      background:rgba(255,255,255,.88);
      border:1px solid rgba(217,230,214,.95);
      border-radius:var(--radius);
      box-shadow:0 10px 28px rgba(21,68,34,.06);
    }
    .hero-copy{padding:32px}
    .eyebrow{
      display:inline-flex;align-items:center;gap:8px;
      padding:8px 12px;border-radius:999px;background:var(--brand3);color:var(--brand2);font-weight:700;font-size:.86rem;
    }
    h1{font-size:clamp(2rem, 4vw, 3.55rem);line-height:1.08;margin:16px 0 14px}
    .hero p{margin:0;color:var(--muted);font-size:1.03rem}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px}
    .hero-points{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:24px}
    .mini{
      padding:14px;border-radius:16px;background:linear-gradient(180deg,#fff,#f4fbf2);border:1px solid #deeadb;
    }
    .mini strong{display:block;font-size:1.05rem}
    .mini span{color:var(--muted);font-size:.9rem}
    .hero-panel{padding:22px;display:grid;gap:14px;align-content:start}
    .panel-badge{display:flex;gap:10px;flex-wrap:wrap}
    .stat-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
    .stat{
      padding:16px;border-radius:18px;background:linear-gradient(180deg,#f7fff8,#eefaf0);border:1px solid #dcecdc;
    }
    .stat strong{display:block;font-size:1.45rem;color:var(--brand2)}
    .stat span{color:var(--muted);font-size:.88rem}
    section{padding:26px 0}
    .section-head{
      display:flex;align-items:end;justify-content:space-between;gap:16px;margin-bottom:18px;flex-wrap:wrap;
    }
    .section-head h2{margin:0;font-size:clamp(1.45rem,2.4vw,2.1rem)}
    .section-head p{margin:0;color:var(--muted);max-width:760px}
    .grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
    .grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
    .card,.service-card,.step,.benefit,.case-card,.review-card,.article-card,.pricing-card,.contact-card,.faq-item,.help-card,.timeline-item,.network-item,.about-card,.form-card{padding:20px}
    .card h3,.service-card h3,.step h3,.benefit h3,.case-card h3,.review-card h3,.article-card h3,.pricing-card h3,.contact-card h3,.help-card h3,.about-card h3{margin:0 0 10px;font-size:1.05rem}
    .card p,.service-card p,.step p,.benefit p,.case-card p,.review-card p,.article-card p,.pricing-card p,.contact-card p,.help-card p,.about-card p{margin:0;color:var(--muted)}
    .tag-cloud{display:flex;flex-wrap:wrap;gap:10px}
    .tag{padding:9px 12px;background:#fff;border:1px solid #d8e8d7;color:var(--text);font-size:.92rem}
    .highlight{color:var(--brand2);font-weight:800}
    .table-wrap{overflow:auto}
    table{width:100%;border-collapse:collapse;min-width:820px}
    th,td{padding:14px 12px;border-bottom:1px solid #e3eee1;text-align:left;vertical-align:top}
    th{background:#f3faf1;color:#184126;font-size:.95rem}
    .score{font-weight:800;color:var(--brand2)}
    .faq-item{padding:0;overflow:hidden}
    .faq-q{
      width:100%;border:0;background:transparent;padding:18px 20px;text-align:left;
      display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:1rem;font-weight:700;color:var(--text);
    }
    .faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease,padding .28s ease;border-top:1px solid transparent;padding:0 20px}
    .faq-item.active .faq-a{max-height:180px;padding:0 20px 18px;border-top-color:#e2eee0}
    .faq-item.active .faq-q span{transform:rotate(45deg)}
    .faq-q span{font-size:1.25rem;color:var(--brand2);transition:.25s ease}
    .timeline{display:grid;gap:14px}
    .timeline-item{display:flex;gap:14px;align-items:flex-start}
    .dot{width:12px;height:12px;border-radius:50%;background:linear-gradient(135deg,var(--brand),var(--accent));margin-top:8px;box-shadow:0 0 0 6px rgba(23,184,87,.1)}
    .timeline-item strong{display:block;margin-bottom:6px}
    .reviews{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .stars{color:#1a9d4e;letter-spacing:1px;font-weight:800}
    .article-list{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
    .article-card small{display:inline-block;margin-bottom:10px;color:var(--brand2);font-weight:700}
    .article-card a.more{display:inline-flex;margin-top:14px;color:var(--brand2);font-weight:700}
    .form-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
    label{display:block;font-size:.92rem;font-weight:700;margin-bottom:8px}
    input,select,textarea{
      width:100%;padding:13px 14px;border-radius:14px;border:1px solid #d7e4d5;background:#fff;color:var(--text);
      font:inherit;outline:none;
    }
    textarea{min-height:120px;resize:vertical}
    input:focus,select:focus,textarea:focus{border-color:var(--brand);box-shadow:0 0 0 4px rgba(23,184,87,.12)}
    .form-actions{display:flex;flex-wrap:wrap;gap:12px;align-items:center;margin-top:8px}
    .note{color:var(--muted);font-size:.92rem}
    .floating{
      position:fixed;right:16px;bottom:16px;display:grid;gap:10px;z-index:20;
    }
    .float-btn{
      width:52px;height:52px;border-radius:16px;background:linear-gradient(135deg,var(--brand),var(--brand2));color:#fff;
      display:grid;place-items:center;box-shadow:0 16px 30px rgba(23,184,87,.24);font-weight:900;
    }
    .float-btn.small{background:#fff;color:var(--brand2);border:1px solid #d7e4d5}
    footer{
      margin-top:10px;padding:24px 0;border-top:1px solid rgba(217,230,214,.9);
      background:#f3faf1;color:var(--text);
    }
    .footer-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:18px}
    .footer-links{display:flex;flex-wrap:wrap;gap:10px}
    .footer-links a{padding:8px 11px;border-radius:999px;background:#fff;border:1px solid #d9e6d6}
    .footer-meta{color:var(--muted);font-size:.94rem}
    .icon{
      width:38px;height:38px;border-radius:12px;background:var(--brand3);display:grid;place-items:center;color:var(--brand2);font-weight:900;
      flex:0 0 auto;
    }
    .about-card .row,.service-card .row,.contact-row{display:flex;gap:12px;align-items:flex-start}
    .about-card .row+.row,.service-card .row+.row,.contact-row+.contact-row{margin-top:14px}
    .inline-list{display:grid;gap:10px;margin:12px 0 0;padding:0;list-style:none}
    .inline-list li{display:flex;gap:10px;align-items:flex-start;color:var(--muted)}
    .inline-list li:before{content:"•";color:var(--brand2);font-weight:900}
    .compare-card{display:grid;gap:14px}
    .rating{
      display:flex;align-items:center;justify-content:space-between;gap:10px;padding:16px;border-radius:18px;background:linear-gradient(135deg,#effbf1,#fff);
      border:1px solid #dbead8;
    }
    .rating strong{font-size:1.2rem}
    .scrollable-x{overflow-x:auto}
    .service-card ul{margin:0;padding-left:18px;color:var(--muted)}
    .service-card li{margin:6px 0}
    .center{display:flex;justify-content:center}
    .map-list{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
    .network-item{padding:18px}
    .network-item strong{display:block;margin-bottom:8px}
    .compact{padding:18px}
    .hero-badge-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px}
    .chip{padding:8px 11px;border-radius:999px;background:#fff;border:1px solid #dfeadf;color:var(--muted);font-size:.9rem}
    .split{
      display:grid;grid-template-columns:1fr 1fr;gap:16px;
    }
    .visible-on-mobile{display:none}
    @media (max-width: 1024px){
      .hero-grid,.grid-4,.reviews,.map-list{grid-template-columns:repeat(2,1fr)}
      .grid-3,.article-list,.footer-grid,.split{grid-template-columns:1fr}
    }
    @media (max-width: 768px){
      .menu-toggle{display:inline-flex}
      nav{position:relative}
      .menu{
        display:none;position:absolute;top:58px;right:0;left:0;padding:12px;background:#fff;border:1px solid var(--line);
        border-radius:18px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch;z-index:10;
      }
      .menu.open{display:flex}
      .topbar-inner,.nav-inner{flex-wrap:wrap}
      .hero{padding-top:26px}
      .hero-grid,.grid-2,.hero-points,.grid-4,.reviews,.map-list,.stat-grid,.form-grid{grid-template-columns:1fr}
      .hero-copy,.hero-panel{padding:22px}
      .visible-on-mobile{display:block}
      .table-wrap table{min-width:920px}
    }
    .reveal{opacity:0;transform:translateY(16px);transition:.6s ease}
    .reveal.show{opacity:1;transform:none}