:root{
      --bg:#f4fbfc;
      --panel:#ffffff;
      --panel2:#eef8fb;
      --text:#15303a;
      --muted:#5b7580;
      --line:#d7e9ee;
      --brand:#0d7c91;
      --brand2:#18b3b1;
      --brand3:#56d2c8;
      --accent:#1f8cff;
      --shadow:0 18px 50px rgba(15, 87, 99, .12);
      --radius:20px;
      --radius-sm:14px;
      --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 top left, rgba(24,179,177,.14), transparent 26%),
        radial-gradient(circle at 85% 10%, rgba(31,140,255,.10), transparent 24%),
        linear-gradient(180deg, #f8fdfe 0%, #eef9fb 42%, #f8fcfd 100%);
    }
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    .container{width:min(100% - 32px, var(--container)); margin:0 auto}
    .topbar{
      position:sticky;top:0;z-index:50;
      backdrop-filter: blur(16px);
      background:rgba(248,253,254,.82);
      border-bottom:1px solid rgba(215,233,238,.8);
    }
    .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 img{width:44px;height:44px;object-fit:cover;border-radius:12px;background:#fff;border:1px solid var(--line);box-shadow:0 10px 24px rgba(13,124,145,.08)}
    .brand-text{display:flex;flex-direction:column;line-height:1.15}
    .brand-text strong{font-size:18px;letter-spacing:.4px}
    .brand-text span{font-size:12px;color:var(--muted)}
    .menu{display:flex;align-items:center;gap:18px;flex-wrap:wrap;justify-content:flex-end}
    .menu a{font-size:14px;color:#2a4a55;font-weight:600}
    .menu a:hover{color:var(--brand)}
    .nav-actions{display:flex;align-items:center;gap:10px}
    .btn{
      display:inline-flex;align-items:center;justify-content:center;gap:8px;
      border:1px solid transparent;border-radius:999px;
      padding:12px 18px;font-weight:700;font-size:14px;cursor:pointer;transition:.25s ease;
      white-space:nowrap;
    }
    .btn-primary{background:linear-gradient(135deg,var(--brand),var(--brand2));color:#fff;box-shadow:0 14px 30px rgba(13,124,145,.24)}
    .btn-primary:hover{transform:translateY(-2px);box-shadow:0 20px 36px rgba(13,124,145,.28)}
    .btn-ghost{border-color:var(--line);background:#fff;color:var(--text)}
    .btn-ghost:hover{border-color:#b8dce4;transform:translateY(-1px)}
    .hamburger{display:none;border:1px solid var(--line);background:#fff;border-radius:12px;padding:10px 12px;cursor:pointer}
    .hero{
      padding:42px 0 26px;
    }
    .hero-grid{
      display:grid;grid-template-columns:1.25fr .9fr;gap:22px;align-items:stretch;
    }
    .hero-copy,.hero-side,.section-card,.soft-card,.faq-item,.form-card,.review-card,.case-card,.article-card,.compare-card{
      background:rgba(255,255,255,.88);
      border:1px solid rgba(215,233,238,.95);
      box-shadow:var(--shadow);
      border-radius:var(--radius);
    }
    .hero-copy{padding:30px;position:relative;overflow:hidden}
    .hero-copy:before{
      content:"";position:absolute;inset:auto -60px -70px auto;width:180px;height:180px;border-radius:50%;
      background:radial-gradient(circle, rgba(24,179,177,.18), transparent 68%);
    }
    .eyebrow{display:inline-flex;align-items:center;gap:8px;padding:8px 12px;border-radius:999px;background:linear-gradient(135deg,rgba(13,124,145,.11),rgba(24,179,177,.10));color:var(--brand);font-weight:700;font-size:13px}
    h1{margin:16px 0 12px;font-size:clamp(30px,5vw,52px);line-height:1.06;letter-spacing:-.5px}
    .lead{color:var(--muted);font-size:16px;line-height:1.8;max-width:60ch}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin:22px 0 18px}
    .hero-points{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:18px}
    .mini-stat{
      padding:14px;border-radius:16px;background:linear-gradient(180deg,#f8feff,#effbfc);border:1px solid var(--line)
    }
    .mini-stat strong{display:block;font-size:20px;color:#0f4d59}
    .mini-stat span{display:block;margin-top:4px;color:var(--muted);font-size:13px;line-height:1.5}
    .hero-side{padding:22px;display:flex;flex-direction:column;gap:14px}
    .side-badge{display:flex;justify-content:space-between;gap:12px;align-items:center;padding:16px;border-radius:18px;background:linear-gradient(135deg,rgba(13,124,145,.08),rgba(31,140,255,.06));border:1px solid #d8eef2}
    .side-badge strong{font-size:18px}
    .side-badge span{display:block;color:var(--muted);font-size:13px;margin-top:4px}
    .site-links{display:flex;flex-wrap:wrap;gap:10px}
    .chip{padding:9px 12px;border-radius:999px;background:#f4fbfc;border:1px solid var(--line);font-size:13px;color:#25515e}
    .grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
    .grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .section{padding:20px 0}
    .section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:14px;margin-bottom:16px}
    .section-head h2{margin:0;font-size:clamp(24px,3vw,34px)}
    .section-head p{margin:0;color:var(--muted);max-width:70ch;line-height:1.7}
    .section-card,.soft-card,.case-card,.article-card,.review-card,.form-card,.compare-card,.faq-item{padding:22px}
    .metric strong{display:block;font-size:30px;color:#0f4d59}
    .metric span{display:block;margin-top:8px;color:var(--muted);line-height:1.6}
    .service-card h3,.case-card h3,.article-card h3,.review-card h3,.soft-card h3{margin:0 0 10px;font-size:18px}
    .service-card p,.case-card p,.article-card p,.review-card p,.soft-card p,.compare-card p{margin:0;color:var(--muted);line-height:1.75}
    .service-card{padding:22px;border-radius:18px;background:linear-gradient(180deg,#fff,#f7fcfd);border:1px solid var(--line);transition:.25s ease}
    .service-card:hover,.case-card:hover,.article-card:hover,.review-card:hover,.soft-card:hover{transform:translateY(-3px);box-shadow:0 22px 42px rgba(15,87,99,.12)}
    .tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px}
    .tag{padding:8px 10px;border-radius:999px;background:#eef9fb;border:1px solid #d7e9ee;color:#26525e;font-size:13px}
    .timeline{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
    .step{padding:18px;border-radius:18px;background:linear-gradient(180deg,#fff,#f6fcfd);border:1px solid var(--line);position:relative}
    .step:before{content:"";position:absolute;top:18px;right:18px;width:12px;height:12px;border-radius:50%;background:linear-gradient(135deg,var(--brand),var(--brand3))}
    .step strong{display:block;font-size:16px;margin-bottom:8px}
    .step span{color:var(--muted);line-height:1.7;font-size:14px}
    .compare-wrap{overflow:auto;border-radius:18px;border:1px solid var(--line)}
    table{border-collapse:collapse;width:100%;min-width:760px;background:#fff}
    th,td{padding:16px 14px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top;font-size:14px;line-height:1.65}
    th{background:#f2fbfd;color:#214955}
    .scorebox{display:grid;grid-template-columns:1.1fr .9fr;gap:16px}
    .score-main{padding:20px;border-radius:18px;background:linear-gradient(135deg,rgba(13,124,145,.11),rgba(24,179,177,.08));border:1px solid #d6edf1}
    .score-main .rating{font-size:28px;font-weight:800;color:#0b5160}
    .stars{color:#ffb02e;font-size:18px;letter-spacing:2px}
    .faq{display:grid;gap:12px}
    .faq-item{padding:0;overflow:hidden}
    .faq-q{width:100%;background:none;border:0;padding:18px 20px;font-size:16px;font-weight:700;color:var(--text);text-align:left;display:flex;justify-content:space-between;gap:16px;cursor:pointer}
    .faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease,padding .28s ease;border-top:1px solid transparent}
    .faq-a p{margin:0;padding:0 20px 18px;color:var(--muted);line-height:1.75}
    .faq-item.active .faq-a{max-height:180px;border-top-color:var(--line)}
    .faq-item.active .faq-q .icon{transform:rotate(45deg)}
    .icon{transition:.25s ease;color:var(--brand)}
    .review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .review-card .meta{display:flex;justify-content:space-between;gap:10px;align-items:center;margin-top:14px;color:var(--muted);font-size:13px}
    .case-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
    .article-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .form-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
    .field{display:flex;flex-direction:column;gap:8px}
    label{font-size:14px;font-weight:700;color:#254550}
    input,select,textarea{
      width:100%;border:1px solid var(--line);background:#fbfeff;color:var(--text);
      border-radius:14px;padding:13px 14px;font:inherit;outline:none;transition:.2s ease
    }
    textarea{min-height:120px;resize:vertical}
    input:focus,select:focus,textarea:focus{border-color:#8fd6dd;box-shadow:0 0 0 4px rgba(24,179,177,.10)}
    .span-2{grid-column:span 2}
    .footer{
      padding:24px 0 30px;margin-top:10px;
      border-top:1px solid rgba(215,233,238,.9);
      background:linear-gradient(180deg, rgba(255,255,255,.6), rgba(239,248,250,.92));
    }
    .footer-grid{display:grid;grid-template-columns:1.1fr .9fr .9fr;gap:18px}
    .footer h3{margin:0 0 12px;font-size:16px}
    .footer p,.footer a,.footer li{color:#355763;line-height:1.8;font-size:14px}
    .footer ul{list-style:none;padding:0;margin:0;display:grid;gap:8px}
    .footer .links{display:flex;flex-wrap:wrap;gap:10px}
    .copyright{margin-top:18px;padding-top:16px;border-top:1px solid var(--line);color:#56747f;font-size:13px}
    .float-tools{
      position:fixed;right:18px;bottom:18px;z-index:60;display:flex;flex-direction:column;gap:10px
    }
    .float-btn{
      width:52px;height:52px;border-radius:50%;display:grid;place-items:center;
      background:linear-gradient(135deg,var(--brand),var(--brand2));color:#fff;box-shadow:0 16px 30px rgba(13,124,145,.26)
    }
    .float-btn:hover{transform:translateY(-2px)}
    .sticky-contact{
      position:fixed;left:18px;bottom:18px;z-index:60;
      display:flex;align-items:center;gap:12px;padding:10px 12px 10px 10px;border-radius:18px;
      background:rgba(255,255,255,.94);border:1px solid var(--line);box-shadow:var(--shadow)
    }
    .sticky-contact img{width:56px;height:56px;object-fit:cover;border-radius:12px;border:1px solid var(--line)}
    .sticky-contact span{display:block;font-size:12px;color:var(--muted)}
    .sticky-contact strong{display:block;font-size:14px}
    .hidden{display:none}
    .reveal{opacity:0;transform:translateY(14px);transition:.6s ease}
    .reveal.in-view{opacity:1;transform:none}
    @media (max-width: 1024px){
      .hero-grid,.scorebox,.footer-grid,.grid-4,.grid-3,.review-grid,.case-grid,.article-grid,.timeline{grid-template-columns:1fr 1fr}
    }
    @media (max-width: 760px){
      .menu{display:none}
      .hamburger{display:inline-flex}
      .nav-actions .btn-ghost{display:none}
      .hero-grid,.scorebox,.footer-grid,.grid-4,.grid-3,.review-grid,.case-grid,.article-grid,.timeline,.form-grid{grid-template-columns:1fr}
      .hero{padding-top:22px}
      .hero-copy{padding:22px}
      .hero-points{grid-template-columns:1fr}
      .span-2{grid-column:span 1}
      .section-head{flex-direction:column;align-items:flex-start}
      .sticky-contact{max-width:calc(100vw - 120px)}
    }
    .mobile-menu{
      display:none;border-top:1px solid var(--line);background:rgba(248,253,254,.95)
    }
    .mobile-menu.open{display:block}
    .mobile-menu .container{padding:10px 0 16px}
    .mobile-menu a{display:block;padding:10px 0;color:#274955;font-weight:700;border-bottom:1px dashed #e4eef1}