:root {
      color-scheme: light;
      --ink: #172c32;
      --muted: #567078;
      --teal: #087e78;
      --teal-dark: #075e5b;
      --mint: #d8f4ec;
      --line: #d5e8e4;
      --paper: #f4faf8;
      --white: #ffffff;
      --coral: #e57555;
      --yellow: #f1c75b;
      --shadow: 0 16px 40px rgba(23, 66, 63, .08);
      --container: 1160px;
    }
    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; scroll-padding-top: 88px; }
    body {
      margin: 0;
      background: var(--paper);
      color: var(--ink);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
      line-height: 1.7;
    }
    a { color: inherit; text-decoration: none; }
    button, input, select, textarea { font: inherit; }
    button, a { -webkit-tap-highlight-color: transparent; }
    .container { width: min(var(--container), calc(100% - 40px)); margin-inline: auto; }
    .site-header {
      position: sticky;
      z-index: 20;
      top: 0;
      background: rgba(244, 250, 248, .94);
      border-bottom: 1px solid rgba(213, 232, 228, .85);
      backdrop-filter: blur(14px);
    }
    .nav-row {
      min-height: 76px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 24px;
    }
    .brand { display: inline-flex; align-items: center; gap: 11px; flex: 0 0 auto; }
    .brand-mark {
      width: 42px;
      height: 42px;
      display: grid;
      place-items: center;
      overflow: hidden;
      background: #fff;
      border: 1px solid var(--line);
      border-radius: 12px;
    }
    .brand-mark img { display: block; max-width: 100%; height: auto; }
    .brand-name { font-size: 17px; font-weight: 800; letter-spacing: 0; }
    .nav-links { display: flex; align-items: center; justify-content: flex-end; gap: 0; flex-wrap: wrap; }
    .nav-links a { padding: 8px 9px; color: #36545a; font-size: 13px; white-space: nowrap; transition: color .2s ease; }
    .nav-links a:hover { color: var(--teal); }
    .nav-cta, .button {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      min-height: 46px;
      padding: 11px 18px;
      border: 1px solid var(--teal);
      border-radius: 8px;
      background: var(--teal);
      color: #fff;
      font-weight: 750;
      transition: transform .2s ease, background .2s ease, box-shadow .2s ease;
    }
    .nav-cta { flex: 0 0 auto; min-height: 40px; padding: 8px 14px; font-size: 13px; }
    .button:hover, .nav-cta:hover { background: var(--teal-dark); box-shadow: 0 8px 22px rgba(8, 126, 120, .2); transform: translateY(-2px); }
    .button.secondary { background: transparent; color: var(--teal-dark); }
    .button.secondary:hover { background: #e5f5f0; }
    .menu-toggle { display: none; width: 42px; height: 42px; border: 1px solid var(--line); border-radius: 8px; background: #fff; color: var(--ink); cursor: pointer; }
    .hero {
      position: relative;
      overflow: hidden;
      background:
        linear-gradient(118deg, rgba(220, 249, 239, .92), rgba(234, 248, 246, .94) 48%, rgba(250, 252, 245, .98)),
        repeating-linear-gradient(135deg, transparent 0 25px, rgba(8, 126, 120, .035) 25px 26px);
      border-bottom: 1px solid var(--line);
    }
    .hero::after {
      content: "";
      position: absolute;
      right: -110px;
      top: 44px;
      width: 390px;
      aspect-ratio: 1;
      border: 1px solid rgba(8, 126, 120, .17);
      border-radius: 50%;
      box-shadow: 0 0 0 28px rgba(8, 126, 120, .035), 0 0 0 58px rgba(8, 126, 120, .025);
      pointer-events: none;
    }
    .hero-inner { position: relative; z-index: 1; padding-block: 76px 54px; }
    .hero-copy { max-width: 760px; }
    .eyebrow { display: inline-flex; align-items: center; gap: 9px; color: var(--teal-dark); font-size: 13px; font-weight: 800; }
    .eyebrow::before { content: ""; width: 24px; height: 2px; background: var(--coral); }
    h1 { max-width: 740px; margin: 18px 0 16px; font-size: clamp(38px, 5vw, 62px); line-height: 1.12; letter-spacing: 0; }
    .hero-copy > p { max-width: 650px; margin: 0; color: #45636a; font-size: 17px; }
    .hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
    .hero-proof { display: flex; flex-wrap: wrap; gap: 10px 24px; margin-top: 28px; color: #385a60; font-size: 13px; }
    .hero-proof span::before { content: "✓"; margin-right: 7px; color: var(--teal); font-weight: 900; }
    .hero-strip { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; margin-top: 52px; border-top: 1px solid rgba(8, 126, 120, .2); }
    .hero-stat { padding: 18px 20px 0 0; }
    .hero-stat + .hero-stat { padding-left: 20px; border-left: 1px solid rgba(8, 126, 120, .18); }
    .hero-stat strong { display: block; font-size: 15px; }
    .hero-stat span { color: var(--muted); font-size: 12px; }
    .section { padding-block: 76px; }
    .section.alt { background: #eaf6f2; border-block: 1px solid #dbece7; }
    .section-heading { max-width: 720px; margin-bottom: 32px; }
    .section-kicker { margin: 0 0 8px; color: var(--teal); font-size: 12px; font-weight: 850; letter-spacing: 0; }
    h2 { margin: 0; font-size: 32px; line-height: 1.25; letter-spacing: 0; }
    .section-heading > p:last-child { margin: 12px 0 0; color: var(--muted); }
    .intro-layout { display: grid; grid-template-columns: 1.1fr .9fr; gap: 48px; align-items: start; }
    .intro-copy p { margin: 0 0 16px; color: #45636a; }
    .intro-points { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0 24px; border-top: 1px solid var(--line); }
    .intro-point { padding: 15px 0; border-bottom: 1px solid var(--line); }
    .intro-point strong { display: block; font-size: 14px; }
    .intro-point span { color: var(--muted); font-size: 13px; }
    .model-band { margin-top: 34px; padding: 22px 24px; border-left: 3px solid var(--teal); background: #fff; }
    .model-band strong { display: block; margin-bottom: 10px; }
    .tag-cloud { display: flex; flex-wrap: wrap; gap: 8px; }
    .tag-cloud span { padding: 5px 10px; border: 1px solid #cfe4df; border-radius: 5px; background: #f5fbf9; color: #395b60; font-size: 12px; }
    .service-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
    .service-item { min-width: 0; padding: 21px; border: 1px solid var(--line); border-radius: 8px; background: #fff; transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease; }
    .service-item:hover { transform: translateY(-3px); border-color: #9acdc2; box-shadow: var(--shadow); }
    .service-item h3 { margin: 0 0 7px; font-size: 16px; }
    .service-item p { margin: 0; color: var(--muted); font-size: 13px; }
    .service-group { margin-top: 28px; }
    .service-group h3 { margin: 0 0 14px; font-size: 19px; }
    .delivery-layout { display: grid; grid-template-columns: .9fr 1.1fr; gap: 44px; align-items: center; }
    .delivery-copy p { color: var(--muted); }
    .delivery-image { overflow: hidden; border-radius: 8px; background: #d9ece7; }
    .delivery-image img { display: block; width: 100%; height: auto; }
    .delivery-image.square { width: min(280px, 72%); margin: 18px 0 0 auto; }
    .delivery-image.square img { width: 100%; height: auto; }
    .industry-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
    .industry { padding: 17px 16px; border-top: 2px solid #75bdb0; background: rgba(255,255,255,.78); }
    .industry strong { display: block; font-size: 14px; }
    .industry span { display: block; margin-top: 5px; color: var(--muted); font-size: 12px; }
    .network-panel { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; padding: 28px; border: 1px solid var(--line); background: #fff; }
    .network-panel h3 { margin: 0 0 9px; font-size: 18px; }
    .network-panel p { margin: 0; color: var(--muted); font-size: 14px; }
    .process { display: grid; grid-template-columns: repeat(5, 1fr); gap: 0; counter-reset: step; }
    .process-step { position: relative; padding: 0 20px 0 0; counter-increment: step; }
    .process-step::before { content: "0" counter(step); display: block; margin-bottom: 12px; color: var(--teal); font-size: 13px; font-weight: 900; }
    .process-step:not(:last-child)::after { content: ""; position: absolute; top: 9px; left: 38px; right: 16px; height: 1px; background: #a9d5cb; }
    .process-step h3 { margin: 0 0 6px; font-size: 15px; }
    .process-step p { margin: 0; color: var(--muted); font-size: 13px; }
    .case-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
    .case-item { padding: 22px 0; border-top: 3px solid var(--teal); }
    .case-item:nth-child(2) { border-color: var(--coral); }
    .case-item:nth-child(3) { border-color: #c79a2a; }
    .case-item small { color: var(--muted); font-weight: 700; }
    .case-item h3 { margin: 9px 0 7px; font-size: 18px; }
    .case-item p { margin: 0; color: var(--muted); font-size: 14px; }
    .review-score { display: flex; align-items: center; gap: 22px; margin: 4px 0 24px; padding: 20px 24px; border: 1px solid #a7d6cb; background: #e3f5ef; }
    .review-score strong { font-size: 37px; line-height: 1; }
    .review-score span { color: #355a59; font-size: 14px; }
    .stars { color: #a56d0a; font-size: 17px; letter-spacing: 0; }
    .table-wrap { overflow-x: auto; border: 1px solid var(--line); background: #fff; }
    table { width: 100%; min-width: 720px; border-collapse: collapse; text-align: left; }
    th, td { padding: 13px 16px; border-bottom: 1px solid #e4efec; vertical-align: top; font-size: 13px; }
    th { background: #eaf6f2; color: #27474b; font-weight: 800; }
    td:first-child { font-weight: 750; }
    .recommended { color: var(--teal-dark); font-weight: 800; }
    .match-layout { display: grid; grid-template-columns: .85fr 1.15fr; gap: 36px; align-items: start; }
    .match-copy { padding: 24px; background: #dff2ed; border-left: 3px solid var(--teal); }
    .match-copy h3 { margin: 0 0 9px; font-size: 19px; }
    .match-copy p { margin: 0 0 14px; color: #466368; font-size: 14px; }
    .match-copy ul { margin: 0; padding-left: 19px; color: #395a5e; font-size: 13px; }
    .form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
    .field { display: flex; flex-direction: column; gap: 6px; }
    .field.full { grid-column: 1 / -1; }
    .field label { color: #39575d; font-size: 13px; font-weight: 750; }
    .field input, .field select, .field textarea { width: 100%; min-width: 0; padding: 11px 12px; border: 1px solid #c9ded9; border-radius: 6px; outline: none; background: #fff; color: var(--ink); }
    .field input:focus, .field select:focus, .field textarea:focus { border-color: var(--teal); box-shadow: 0 0 0 3px rgba(8,126,120,.1); }
    .field textarea { min-height: 110px; resize: vertical; }
    .form-submit { margin-top: 14px; }
    .pricing-note { display: grid; grid-template-columns: 1fr auto; gap: 24px; align-items: center; padding: 26px 28px; border: 1px solid #c9e5dc; background: #e2f4ee; }
    .pricing-note h3 { margin: 0 0 5px; font-size: 19px; }
    .pricing-note p { margin: 0; color: #48676a; font-size: 14px; }
    .faq-list { border-top: 1px solid var(--line); }
    details { border-bottom: 1px solid var(--line); }
    summary { position: relative; padding: 17px 38px 17px 0; cursor: pointer; list-style: none; font-weight: 750; }
    summary::-webkit-details-marker { display: none; }
    summary::after { content: "+"; position: absolute; right: 4px; top: 14px; color: var(--teal); font-size: 21px; font-weight: 500; }
    details[open] summary::after { content: "−"; }
    details p { max-width: 850px; margin: -3px 0 18px; color: var(--muted); font-size: 14px; }
    .reviews { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
    .review { padding: 19px; border: 1px solid var(--line); background: #fff; }
    .review p { margin: 0 0 14px; color: #496369; font-size: 14px; }
    .review strong { display: block; font-size: 13px; }
    .review span { color: var(--muted); font-size: 12px; }
    .knowledge-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; }
    .knowledge-layout h3 { margin: 0 0 12px; font-size: 19px; }
    .article-list { border-top: 1px solid var(--line); }
    .article-link { display: flex; justify-content: space-between; gap: 20px; padding: 12px 0; border-bottom: 1px solid var(--line); color: #36545a; font-size: 14px; }
    .article-link span:last-child { color: var(--teal); white-space: nowrap; }
    .timeline { display: grid; gap: 0; border-left: 1px solid #9acdc2; padding-left: 20px; }
    .timeline-item { position: relative; padding: 0 0 18px; }
    .timeline-item::before { content: ""; position: absolute; top: 8px; left: -25px; width: 9px; height: 9px; border: 2px solid var(--teal); border-radius: 50%; background: var(--paper); }
    .timeline-item strong { display: block; font-size: 14px; }
    .timeline-item span { color: var(--muted); font-size: 13px; }
    .contact-band { padding-block: 52px; background: #dff2ed; border-top: 1px solid #cfe7df; }
    .contact-layout { display: grid; grid-template-columns: 1fr auto; gap: 30px; align-items: center; }
    .contact-layout h2 { font-size: 28px; }
    .contact-layout p { margin: 9px 0 0; color: #45646a; }
    .contact-links { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 16px; font-size: 14px; }
    .contact-links a { color: var(--teal-dark); text-decoration: underline; text-underline-offset: 3px; }
    .qr { width: 124px; padding: 7px; border: 1px solid var(--line); background: #fff; }
    .qr img { display: block; width: 100%; height: auto; }
    .join-block { display: flex; justify-content: space-between; gap: 24px; align-items: center; padding-top: 25px; margin-top: 26px; border-top: 1px solid #c4ded6; }
    .join-block h3 { margin: 0; font-size: 18px; }
    .join-block p { margin: 5px 0 0; color: #45646a; font-size: 14px; }
    .site-footer { padding: 30px 0; background: #e7f3ef; color: #26464b; border-top: 1px solid #d1e5df; }
    .footer-top { display: flex; justify-content: space-between; gap: 30px; align-items: flex-start; }
    .footer-copy { max-width: 430px; color: #4c686d; font-size: 13px; }
    .footer-links { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 8px 18px; max-width: 600px; }
    .footer-links a { color: #315b5b; font-size: 12px; }
    .footer-bottom { display: flex; justify-content: space-between; gap: 16px; padding-top: 17px; margin-top: 20px; border-top: 1px solid #cfe1dc; color: #547075; font-size: 12px; }
    .floating-contact { position: fixed; z-index: 15; right: 18px; bottom: 20px; display: grid; gap: 8px; }
    .floating-contact a, .to-top { display: grid; place-items: center; width: 48px; height: 48px; border: 1px solid #b8dad1; border-radius: 8px; background: #fff; color: var(--teal-dark); box-shadow: 0 5px 18px rgba(22, 73, 68, .12); font-size: 12px; font-weight: 800; }
    .to-top { cursor: pointer; }
    .reveal { opacity: 0; transform: translateY(14px); transition: opacity .55s ease, transform .55s ease; }
    .reveal.is-visible { opacity: 1; transform: translateY(0); }
    @media (max-width: 1020px) {
      .nav-links { display: none; position: absolute; top: 76px; left: 0; right: 0; padding: 12px 20px 18px; border-bottom: 1px solid var(--line); background: #f4faf8; box-shadow: 0 12px 18px rgba(23,66,63,.08); }
      .nav-links.is-open { display: flex; justify-content: flex-start; }
      .nav-links a { padding: 8px 10px; }
      .menu-toggle { display: grid; place-items: center; margin-left: auto; }
      .nav-cta { margin-left: 4px; }
      .service-grid { grid-template-columns: repeat(2, 1fr); }
      .industry-grid { grid-template-columns: repeat(2, 1fr); }
    }
    @media (max-width: 700px) {
      .container { width: min(var(--container), calc(100% - 32px)); }
      .nav-row { min-height: 66px; gap: 10px; }
      .brand-name { font-size: 15px; }
      .brand-mark { width: 38px; height: 38px; }
      .nav-links { top: 66px; }
      .nav-links.is-open { display: grid; grid-template-columns: repeat(2, 1fr); }
      .nav-links a { white-space: normal; }
      .nav-cta { min-height: 38px; padding: 7px 10px; font-size: 12px; }
      .hero-inner { padding-block: 56px 34px; }
      .hero::after { right: -220px; top: 90px; }
      h1 { font-size: 40px; }
      .hero-copy > p { font-size: 15px; }
      .hero-strip { grid-template-columns: repeat(2, 1fr); row-gap: 16px; margin-top: 38px; }
      .hero-stat:nth-child(3) { padding-left: 0; border-left: 0; }
      .section { padding-block: 56px; }
      h2 { font-size: 27px; }
      .intro-layout, .delivery-layout, .match-layout, .knowledge-layout { grid-template-columns: 1fr; gap: 26px; }
      .service-grid { grid-template-columns: 1fr; }
      .industry-grid { grid-template-columns: repeat(2, 1fr); gap: 8px; }
      .network-panel { grid-template-columns: 1fr; gap: 20px; padding: 22px; }
      .process { grid-template-columns: 1fr; gap: 17px; }
      .process-step { padding: 0 0 0 42px; }
      .process-step::before { position: absolute; left: 0; top: 1px; margin: 0; }
      .process-step:not(:last-child)::after { top: 25px; bottom: -14px; left: 9px; right: auto; width: 1px; height: auto; }
      .case-grid, .reviews { grid-template-columns: 1fr; }
      .review-score { gap: 14px; padding: 17px; }
      .review-score strong { font-size: 32px; }
      .pricing-note { grid-template-columns: 1fr; }
      .form-grid { grid-template-columns: 1fr; }
      .field.full { grid-column: auto; }
      .contact-layout { grid-template-columns: 1fr auto; gap: 14px; }
      .contact-layout h2 { font-size: 24px; }
      .qr { width: 92px; }
      .join-block, .footer-top, .footer-bottom { flex-direction: column; align-items: flex-start; }
      .footer-links { justify-content: flex-start; }
      .floating-contact { right: 10px; bottom: 12px; }
      .floating-contact a, .to-top { width: 43px; height: 43px; }
    }
    @media (prefers-reduced-motion: reduce) {
      *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; transition-duration: .01ms !important; }
      .reveal { opacity: 1; transform: none; }
    }