:root{
      --bg:#f5faf9;
      --bg2:#eef8f7;
      --card:#ffffff;
      --text:#17303a;
      --muted:#5f7380;
      --line:#d7e7e5;
      --primary:#0a9ea0;
      --primary2:#2cc7b7;
      --accent:#1c7be0;
      --shadow:0 18px 40px rgba(11, 63, 72, .10);
      --radius:22px;
      --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",sans-serif;color:var(--text);background:
      radial-gradient(circle at top left, rgba(44,199,183,.14), transparent 30%),
      radial-gradient(circle at top right, rgba(28,123,224,.10), transparent 22%),
      linear-gradient(180deg, #ffffff 0%, var(--bg) 30%, #f7fbfb 100%);
      overflow-x:hidden}
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    .container{width:min(var(--container), calc(100% - 32px));margin:0 auto}
    header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.82);backdrop-filter:blur(14px);border-bottom:1px solid rgba(215,231,229,.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;border-radius:12px;background:#fff;box-shadow:0 10px 22px rgba(10,158,160,.12)}
    .brand .name{display:flex;flex-direction:column;line-height:1.1}
    .brand strong{font-size:18px;letter-spacing:.5px}
    .brand span{font-size:12px;color:var(--muted)}
    .nav-links{display:flex;align-items:center;gap:16px;flex-wrap:wrap;justify-content:flex-end}
    .nav-links a{font-size:14px;color:#35525d;padding:8px 10px;border-radius:999px;transition:.25s}
    .nav-links a:hover,.nav-links a.active{background:rgba(10,158,160,.10);color:var(--primary)}
    .nav-actions{display:flex;align-items:center;gap:10px}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 18px;border-radius:999px;border:1px solid transparent;font-weight:700;transition:.25s;cursor:pointer;white-space:nowrap}
    .btn-primary{background:linear-gradient(135deg,var(--primary),var(--primary2));color:#fff;box-shadow:0 14px 26px rgba(10,158,160,.24)}
    .btn-primary:hover{transform:translateY(-2px);box-shadow:0 18px 30px rgba(10,158,160,.28)}
    .btn-ghost{background:#fff;border-color:var(--line);color:var(--text)}
    .btn-ghost:hover{border-color:rgba(10,158,160,.42);color:var(--primary);transform:translateY(-1px)}
    .menu-toggle{display:none;background:#fff;border:1px solid var(--line);width:44px;height:44px;border-radius:14px}
    main{display:block}
    section{padding:72px 0}
    .hero{padding:38px 0 46px;position:relative;overflow:hidden}
    .hero::before,.hero::after{content:"";position:absolute;border-radius:999px;pointer-events:none}
    .hero::before{width:320px;height:320px;background:radial-gradient(circle, rgba(44,199,183,.18), transparent 66%);top:-80px;right:-120px}
    .hero::after{width:260px;height:260px;background:radial-gradient(circle, rgba(28,123,224,.14), transparent 66%);bottom:-110px;left:-120px}
    .hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:28px;align-items:stretch}
    .hero-copy,.hero-panel,.panel-card,.section-card,.form-card,.faq-item,.review-card,.case-card,.article-card,.compare-wrap,.timeline-card,.network-card{background:rgba(255,255,255,.9);border:1px solid rgba(215,231,229,.9);box-shadow:var(--shadow);border-radius:var(--radius)}
    .hero-copy{padding:34px}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;padding:8px 12px;border-radius:999px;background:rgba(10,158,160,.10);color:var(--primary);font-weight:700;font-size:13px}
    h1{margin:18px 0 14px;font-size:clamp(32px,4vw,54px);line-height:1.06;letter-spacing:-.02em}
    .lead{font-size:17px;line-height:1.8;color:var(--muted);margin:0 0 22px}
    .hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin:18px 0 22px}
    .hero-points{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
    .mini-stat{padding:14px 15px;border-radius:18px;background:linear-gradient(180deg,#fff,#f8fcfc);border:1px solid var(--line)}
    .mini-stat strong{display:block;font-size:18px;color:var(--text)}
    .mini-stat span{display:block;margin-top:5px;font-size:13px;color:var(--muted);line-height:1.55}
    .hero-panel{padding:22px;display:flex;flex-direction:column;gap:14px;justify-content:space-between}
    .panel-card{padding:18px;background:linear-gradient(180deg, rgba(10,158,160,.06), rgba(44,199,183,.03));box-shadow:none}
    .panel-title{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:8px}
    .panel-title h3,.section-head h2{margin:0;font-size:24px}
    .panel-title small{color:var(--muted)}
    .chips{display:flex;flex-wrap:wrap;gap:10px}
    .chip{padding:8px 12px;border-radius:999px;background:#fff;border:1px solid var(--line);font-size:13px;color:#32515d}
    .grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
    .stat-card,.service-card,.feature-card,.review-card,.case-card,.article-card,.help-card{padding:22px;position:relative;overflow:hidden}
    .stat-card::after,.service-card::after,.feature-card::after,.case-card::after{content:"";position:absolute;inset:auto -30px -40px auto;width:120px;height:120px;border-radius:50%;background:radial-gradient(circle, rgba(10,158,160,.12), transparent 65%)}
    .stat-card strong{display:block;font-size:30px;line-height:1;color:var(--text)}
    .stat-card p{margin:10px 0 0;color:var(--muted);line-height:1.6}
    .section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:18px;margin-bottom:24px}
    .section-head p{margin:0;color:var(--muted);line-height:1.7;max-width:760px}
    .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}
    .service-card h3,.feature-card h3,.case-card h3,.article-card h3,.help-card h3,.timeline-card h3{margin:10px 0 8px;font-size:18px}
    .service-card p,.feature-card p,.case-card p,.article-card p,.help-card p,.timeline-card p,.review-card p{margin:0;color:var(--muted);line-height:1.75}
    .icon-badge{width:46px;height:46px;border-radius:14px;background:linear-gradient(135deg, rgba(10,158,160,.14), rgba(28,123,224,.12));display:grid;place-items:center;color:var(--primary);font-weight:800}
    .list{margin:14px 0 0;padding:0;list-style:none;display:grid;gap:10px}
    .list li{display:flex;gap:10px;align-items:flex-start;color:#334f5a;line-height:1.65}
    .list li::before{content:"";width:8px;height:8px;border-radius:50%;background:linear-gradient(135deg,var(--primary),var(--accent));margin-top:9px;flex:0 0 auto}
    .tags{display:flex;flex-wrap:wrap;gap:10px}
    .tag{padding:10px 12px;border:1px solid var(--line);background:#fff;border-radius:999px;font-size:13px;color:#35525d}
    .timeline{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
    .timeline-card{padding:20px}
    .timeline-card .step{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:12px;background:linear-gradient(135deg,var(--primary),var(--primary2));color:#fff;font-weight:800}
    .compare-wrap{padding:8px;overflow:hidden}
    .table-scroll{overflow-x:auto}
    table{width:100%;border-collapse:separate;border-spacing:0;min-width:900px}
    th,td{padding:16px 14px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}
    th{background:#f4fbfb;color:#23404a;font-size:14px}
    td{color:#35515d;font-size:14px;line-height:1.65}
    .score{display:inline-flex;align-items:center;gap:6px;padding:8px 12px;border-radius:999px;background:rgba(10,158,160,.10);color:var(--primary);font-weight:700}
    .faq-item{padding:0;overflow:hidden}
    .faq-q{width:100%;background:none;border:0;padding:18px 20px;display:flex;align-items:center;justify-content:space-between;gap:16px;font-size:16px;font-weight:700;color:var(--text);cursor:pointer;text-align:left}
    .faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease;padding:0 20px}
    .faq-item.open .faq-a{max-height:180px;padding-bottom:18px}
    .faq-a p{margin:0;color:var(--muted);line-height:1.75}
    .review-card .meta{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:12px}
    .stars{color:#f0b400;font-size:15px;letter-spacing:1px}
    .reviews{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
    .case-card{display:flex;flex-direction:column;gap:12px}
    .case-pill{display:inline-flex;width:max-content;padding:6px 10px;border-radius:999px;background:rgba(28,123,224,.10);color:#1c5aa2;font-size:12px;font-weight:700}
    .articles{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
    .article-card time{font-size:13px;color:var(--muted)}
    .form-card{padding:24px}
    form{display:grid;gap:14px}
    .field-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
    label{display:grid;gap:8px;font-size:14px;font-weight:700;color:#2c4955}
    input,select,textarea{width:100%;padding:13px 14px;border-radius:14px;border:1px solid var(--line);background:#fff;color:var(--text);font:inherit;outline:none;transition:.2s}
    input:focus,select:focus,textarea:focus{border-color:rgba(10,158,160,.7);box-shadow:0 0 0 4px rgba(10,158,160,.10)}
    textarea{min-height:128px;resize:vertical}
    .footer-cta{display:flex;gap:12px;flex-wrap:wrap;margin-top:12px}
    footer{padding:26px 0 36px;border-top:1px solid var(--line);background:#f9fcfc;color:#23404a}
    .footer-grid{display:grid;grid-template-columns:1.1fr .9fr .9fr;gap:18px;align-items:start}
    .footer-grid h3{margin:0 0 12px;font-size:18px}
    .footer-grid p,.footer-grid li,.footer-grid a{color:#3b5a66;line-height:1.8;font-size:14px}
    .footer-grid ul{margin:0;padding:0;list-style:none;display:grid;gap:8px}
    .footer-copy{margin-top:18px;padding-top:14px;border-top:1px solid var(--line);font-size:13px;color:#55717d}
    .float-tools{position:fixed;right:16px;bottom:16px;display:grid;gap:10px;z-index:60}
    .float-btn{width:48px;height:48px;border-radius:16px;background:linear-gradient(135deg,var(--primary),var(--primary2));color:#fff;border:0;box-shadow:0 14px 26px rgba(10,158,160,.24);cursor:pointer}
    .float-link{display:grid;place-items:center;width:48px;height:48px;border-radius:16px;background:#fff;border:1px solid var(--line);box-shadow:0 12px 24px rgba(18,53,61,.10)}
    .service-strip{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:10px}
    .strip-item{padding:14px;border:1px solid var(--line);background:#fff;border-radius:16px;font-size:13px;color:#35515d;text-align:center;line-height:1.5}
    .responsive-media{display:grid;grid-template-columns:1fr 1fr;gap:12px}
    .responsive-media img{border-radius:18px;border:1px solid var(--line);box-shadow:0 14px 28px rgba(18,53,61,.08)}
    .center{text-align:center}
    .muted{color:var(--muted)}
    .reveal{opacity:0;transform:translateY(16px);transition:.6s ease}
    .reveal.in{opacity:1;transform:none}
    @media (max-width: 1080px){
      .hero-grid,.grid-4,.grid-3,.reviews,.articles,.timeline,.footer-grid,.service-strip{grid-template-columns:repeat(2,minmax(0,1fr))}
      .hero-copy,.hero-panel{padding:24px}
    }
    @media (max-width: 760px){
      .nav{min-height:64px}
      .nav-links,.nav-actions{display:none}
      .menu-toggle{display:inline-grid;place-items:center}
      .mobile-nav{display:none;padding:0 0 14px}
      .mobile-nav.open{display:grid;gap:8px}
      .mobile-nav a{padding:12px 14px;border:1px solid var(--line);border-radius:14px;background:#fff;color:#35525d}
      .hero-grid,.grid-4,.grid-3,.grid-2,.reviews,.articles,.timeline,.footer-grid,.service-strip,.responsive-media,.field-grid{grid-template-columns:1fr}
      section{padding:58px 0}
      .hero{padding-top:22px}
      .hero-copy h1{font-size:clamp(30px,8vw,42px)}
      .hero-points{grid-template-columns:1fr}
      .section-head{flex-direction:column;align-items:flex-start}
      table{min-width:760px}
      .float-tools{right:12px;bottom:12px}
    }