:root {
      --ink: #172326;
      --muted: #5d6a6b;
      --paper: #f8f9f6;
      --white: #fff;
      --line: #dfe5df;
      --green: #1a7566;
      --green-dark: #13594f;
      --lime: #d7f36a;
      --coral: #ff705d;
      --blue: #c8e9ed;
      --max: 1160px;
    }
    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; scroll-padding-top: 88px; }
    body {
      margin: 0;
      color: var(--ink);
      background: var(--paper);
      font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
      line-height: 1.65;
    }
    a { color: inherit; }
    button, input, select, textarea { font: inherit; }
    img { max-width: 100%; height: auto; }
    .container { width: min(var(--max), calc(100% - 40px)); margin-inline: auto; }
    .site-header {
      position: sticky;
      z-index: 20;
      top: 0;
      background: rgba(248, 249, 246, .96);
      border-bottom: 1px solid var(--line);
      backdrop-filter: blur(12px);
    }
    .nav-row { min-height: 72px; display: flex; align-items: center; justify-content: space-between; gap: 20px; }
    .brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; flex: 0 0 auto; }
    .brand img { width: 42px; max-height: 42px; object-fit: contain; }
    .brand-name { font-weight: 800; font-size: 18px; letter-spacing: 0; }
    .nav-links { display: flex; align-items: center; justify-content: flex-end; gap: 0; list-style: none; padding: 0; margin: 0; }
    .nav-links a { display: block; padding: 10px 11px; font-size: 13px; color: #445253; text-decoration: none; white-space: nowrap; }
    .nav-links a:hover { color: var(--green); }
    .nav-cta, .button {
      display: inline-flex; align-items: center; justify-content: center; gap: 8px;
      padding: 11px 17px; border: 1px solid var(--green); border-radius: 4px;
      background: var(--green); color: #fff; font-weight: 700; text-decoration: none;
      transition: transform .2s ease, background .2s ease, box-shadow .2s ease;
    }
    .nav-cta:hover, .button:hover { background: var(--green-dark); box-shadow: 0 8px 18px rgba(19,89,79,.18); transform: translateY(-2px); }
    .menu-toggle { display: none; border: 1px solid var(--line); background: white; color: var(--ink); padding: 8px 11px; border-radius: 4px; cursor: pointer; }
    .hero { position: relative; overflow: hidden; padding: 80px 0 55px; background: #e8f1eb; border-bottom: 1px solid #d4dfd6; }
    .hero::before, .hero::after { content: ""; position: absolute; pointer-events: none; }
    .hero::before { width: 360px; height: 360px; right: -100px; top: -140px; border: 1px solid rgba(26,117,102,.2); border-radius: 50%; box-shadow: 0 0 0 38px rgba(26,117,102,.035), 0 0 0 78px rgba(26,117,102,.025); }
    .hero::after { width: 130px; height: 130px; right: 14%; bottom: 28px; background: var(--lime); transform: rotate(18deg); opacity: .8; }
    .hero-content { position: relative; z-index: 1; max-width: 820px; }
    .eyebrow { color: var(--green-dark); font-size: 12px; font-weight: 800; letter-spacing: 1.2px; text-transform: uppercase; }
    h1 { max-width: 750px; margin: 16px 0 18px; font-size: clamp(38px, 6vw, 68px); line-height: 1.08; letter-spacing: 0; }
    .hero p { max-width: 680px; margin: 0; color: #425252; font-size: 18px; }
    .hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 27px; }
    .button.secondary { color: var(--ink); background: transparent; border-color: #738682; }
    .button.secondary:hover { background: #fff; }
    .hero-note { margin-top: 22px !important; font-size: 13px !important; color: #5a6b68 !important; }
    .metrics { position: relative; z-index: 2; margin-top: 43px; display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid #bdcec2; }
    .metric { padding: 19px 22px 4px 0; }
    .metric strong { display: block; font-size: 19px; line-height: 1.3; }
    .metric span { display: block; margin-top: 5px; color: #5d6a67; font-size: 13px; }
    section.content-section { padding: 76px 0; border-bottom: 1px solid var(--line); }
    .section-head { max-width: 700px; margin-bottom: 30px; }
    .section-head h2 { margin: 6px 0 9px; font-size: clamp(26px, 4vw, 38px); line-height: 1.2; }
    .section-head p { margin: 0; color: var(--muted); }
    .section-kicker { color: var(--green); font-size: 12px; font-weight: 800; letter-spacing: 1px; }
    .intro-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 42px; align-items: start; }
    .intro-copy p { margin: 0 0 15px; color: #445253; }
    .feature-list { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 0 22px; margin: 0; padding: 0; list-style: none; }
    .feature-list li { padding: 13px 0; border-bottom: 1px solid var(--line); font-weight: 650; }
    .feature-list li::before { content: "＋"; color: var(--green); margin-right: 9px; font-weight: 800; }
    .service-grid { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 14px; }
    .service-item { padding: 20px; background: var(--white); border: 1px solid var(--line); border-top: 3px solid var(--green); transition: transform .2s ease, box-shadow .2s ease; }
    .service-item:hover { transform: translateY(-4px); box-shadow: 0 12px 24px rgba(29,55,46,.08); }
    .service-item h3 { margin: 0 0 7px; font-size: 17px; }
    .service-item p { margin: 0; color: var(--muted); font-size: 14px; }
    .service-item:nth-child(3n+2) { border-top-color: var(--coral); }
    .service-item:nth-child(3n) { border-top-color: #6b9fd0; }
    .workflow { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 0; counter-reset: step; }
    .workflow article { position: relative; padding: 19px 22px 20px 0; border-top: 2px solid #a8b9b1; }
    .workflow article::before { counter-increment: step; content: "0" counter(step); display: block; margin-bottom: 13px; color: var(--green); font-size: 13px; font-weight: 800; }
    .workflow h3 { margin: 0 0 6px; font-size: 17px; }
    .workflow p { margin: 0; color: var(--muted); font-size: 14px; }
    .split-band { background: #e9f1ee; }
    .solutions { display: grid; grid-template-columns: 1fr 1fr; gap: 38px; align-items: start; }
    .solution-list { display: grid; gap: 14px; }
    .solution-row { padding: 15px 0; border-bottom: 1px solid #cbd9d2; }
    .solution-row h3 { margin: 0 0 5px; font-size: 16px; }
    .solution-row p { margin: 0; color: var(--muted); font-size: 14px; }
    .tag-cloud { display: flex; flex-wrap: wrap; gap: 8px; }
    .tag-cloud span { padding: 7px 10px; border: 1px solid #c4d0c8; background: rgba(255,255,255,.62); color: #314542; font-size: 13px; }
    .service-network { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 20px; }
    .network-block { border-left: 3px solid var(--coral); padding: 3px 0 3px 17px; }
    .network-block h3 { margin: 0 0 7px; font-size: 17px; }
    .network-block p { margin: 0; color: var(--muted); font-size: 14px; }
    .case-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
    .case { overflow: hidden; border: 1px solid var(--line); background: #fff; }
    .case .media { aspect-ratio: 16 / 9; background: #e8efe9; display: flex; align-items: center; justify-content: center; }
    .case .media img { display: block; width: 100%; height: 100%; object-fit: cover; }
    .case-copy { padding: 18px 20px 20px; }
    .case-copy h3 { margin: 0 0 6px; font-size: 18px; }
    .case-copy p { margin: 0; color: var(--muted); font-size: 14px; }
    .review-grid { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 14px; }
    .review { margin: 0; padding: 18px; background: #fff; border: 1px solid var(--line); }
    .review blockquote { margin: 0 0 15px; color: #344243; font-size: 14px; }
    .review figcaption { color: var(--green-dark); font-size: 13px; font-weight: 750; }
    .review-note { margin: 16px 0 0; color: #687574; font-size: 12px; }
    .comparison-wrap { overflow-x: auto; border: 1px solid var(--line); background: #fff; }
    table { width: 100%; min-width: 680px; border-collapse: collapse; text-align: left; }
    th, td { padding: 13px 15px; border-bottom: 1px solid var(--line); vertical-align: top; }
    thead th { background: #e7f0eb; font-size: 14px; }
    tbody th { width: 22%; font-size: 14px; }
    td { color: #4c5a59; font-size: 14px; }
    .rating { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; margin-bottom: 19px; }
    .rating strong { font-size: 26px; }
    .stars { color: #e76d47; letter-spacing: 0; font-size: 21px; }
    .rating span:last-child { color: var(--muted); font-size: 14px; }
    .article-list { display: grid; grid-template-columns: repeat(5, minmax(0,1fr)); gap: 12px; }
    .article-list a { display: block; padding: 16px; border: 1px solid var(--line); background: #fff; color: var(--green-dark); font-weight: 700; text-decoration: none; }
    .article-list a:hover { border-color: var(--green); }
    .article-list small { display: block; margin-top: 5px; color: var(--muted); font-weight: 400; }
    .faq-list { border-top: 1px solid var(--line); }
    .faq-list details { border-bottom: 1px solid var(--line); }
    .faq-list summary { position: relative; padding: 17px 35px 17px 0; cursor: pointer; list-style: none; font-weight: 700; }
    .faq-list summary::-webkit-details-marker { display: none; }
    .faq-list summary::after { content: "+"; position: absolute; right: 5px; color: var(--green); font-size: 20px; }
    .faq-list details[open] summary::after { content: "−"; }
    .faq-list details p { max-width: 850px; margin: 0 0 17px; color: var(--muted); font-size: 14px; }
    .contact-layout { display: grid; grid-template-columns: .8fr 1.2fr; gap: 42px; align-items: start; }
    .contact-info p { color: var(--muted); }
    .contact-details { margin-top: 22px; display: grid; gap: 9px; }
    .contact-details a { color: var(--green-dark); font-weight: 700; text-decoration-thickness: 1px; text-underline-offset: 3px; }
    .contact-form { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
    .field { display: grid; gap: 6px; }
    .field.full { grid-column: 1 / -1; }
    .field label { font-size: 13px; font-weight: 700; }
    .field input, .field select, .field textarea { width: 100%; padding: 11px 12px; border: 1px solid #cbd5cf; border-radius: 3px; background: #fff; color: var(--ink); }
    .field textarea { min-height: 112px; resize: vertical; }
    .contact-form .button { justify-self: start; cursor: pointer; }
    .join-strip { padding: 29px; background: var(--lime); display: flex; align-items: center; justify-content: space-between; gap: 22px; }
    .join-strip h2 { margin: 0 0 5px; font-size: 23px; }
    .join-strip p { margin: 0; color: #45513a; font-size: 14px; }
    .join-strip .button { flex: 0 0 auto; border-color: var(--ink); background: var(--ink); }
    .site-footer { padding: 30px 0 24px; background: #e8eeea; color: #263535; }
    .footer-top { display: flex; align-items: flex-start; justify-content: space-between; gap: 30px; }
    .footer-copy { max-width: 460px; font-size: 13px; color: #52605e; }
    .footer-links { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 8px 16px; }
    .footer-links a { color: #315d56; font-size: 13px; text-decoration: none; }
    .footer-bottom { margin-top: 20px; padding-top: 14px; border-top: 1px solid #cdd7d0; color: #5c6866; font-size: 12px; }
    .float-contact { position: fixed; z-index: 15; right: 18px; bottom: 18px; display: grid; gap: 8px; }
    .float-contact a { display: inline-flex; justify-content: center; align-items: center; min-width: 48px; min-height: 44px; padding: 0 12px; border: 1px solid var(--green); background: var(--green); color: #fff; text-decoration: none; font-weight: 700; font-size: 13px; box-shadow: 0 4px 12px rgba(22,72,62,.16); }
    .float-contact a.top { min-width: 44px; background: #fff; color: var(--green-dark); }
    .reveal { opacity: 0; transform: translateY(14px); transition: opacity .55s ease, transform .55s ease; }
    .reveal.visible { opacity: 1; transform: none; }
    @media (prefers-reduced-motion: reduce) {
      *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; transition-duration: .01ms !important; }
      .reveal { opacity: 1; transform: none; }
    }
    @media (max-width: 980px) {
      .menu-toggle { display: inline-flex; align-items: center; }
      .nav-cta { display: none; }
      .nav-links { display: none; position: absolute; top: 72px; left: 0; right: 0; padding: 10px 20px 16px; background: var(--paper); border-bottom: 1px solid var(--line); align-items: stretch; flex-direction: column; }
      .nav-links.open { display: flex; }
      .nav-links a { padding: 10px 0; }
      .service-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
      .article-list { grid-template-columns: repeat(3, minmax(0,1fr)); }
    }
    @media (max-width: 680px) {
      .container { width: min(var(--max), calc(100% - 30px)); }
      .hero { padding: 58px 0 38px; }
      .hero p { font-size: 16px; }
      .metrics { grid-template-columns: repeat(2, 1fr); margin-top: 31px; }
      .metric { padding: 15px 10px 5px 0; }
      section.content-section { padding: 55px 0; }
      .intro-grid, .solutions, .contact-layout { grid-template-columns: 1fr; gap: 24px; }
      .feature-list { grid-template-columns: 1fr; }
      .service-grid, .service-network { grid-template-columns: 1fr; }
      .workflow { grid-template-columns: 1fr 1fr; column-gap: 18px; row-gap: 15px; }
      .case-grid, .review-grid { grid-template-columns: 1fr; }
      .article-list { grid-template-columns: 1fr 1fr; }
      .contact-form { grid-template-columns: 1fr; }
      .field.full { grid-column: auto; }
      .join-strip, .footer-top { flex-direction: column; align-items: flex-start; }
      .footer-links { justify-content: flex-start; }
      .float-contact { right: 10px; bottom: 10px; }
    }