:root {
      color-scheme: light;
      --ink: #202b31;
      --muted: #56656b;
      --paper: #f7f8f5;
      --white: #fff;
      --line: #dce3df;
      --teal: #087f79;
      --teal-dark: #075b58;
      --coral: #e46f54;
      --yellow: #f0c957;
      --mint: #d9eee5;
      --lavender: #e9e4f4;
      --container: 1180px;
    }
    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; scroll-padding-top: 82px; }
    body {
      margin: 0;
      color: var(--ink);
      background: var(--paper);
      font-family: Inter, "Noto Sans SC", "Microsoft YaHei", system-ui, 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(--container), calc(100% - 40px)); margin-inline: auto; }
    .site-header {
      position: sticky;
      top: 0;
      z-index: 20;
      background: rgba(247, 248, 245, .96);
      border-bottom: 1px solid rgba(32, 43, 49, .1);
      backdrop-filter: blur(14px);
    }
    .header-inner { min-height: 72px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
    .brand { display: inline-flex; align-items: center; gap: 11px; text-decoration: none; font-weight: 800; white-space: nowrap; }
    .brand img { width: 38px; height: 38px; object-fit: contain; }
    .nav-wrap { display: flex; align-items: center; gap: 18px; }
    .nav-links { display: flex; align-items: center; justify-content: flex-end; flex-wrap: wrap; gap: 0; }
    .nav-links a { padding: 8px 9px; color: #435158; font-size: 13px; text-decoration: none; }
    .nav-links a:hover { color: var(--teal); }
    .nav-cta, .button {
      display: inline-flex; justify-content: center; align-items: center; gap: 8px;
      min-height: 44px; padding: 10px 18px; border: 0; border-radius: 4px;
      background: var(--teal); color: #fff; font-weight: 700; text-decoration: none;
      transition: transform .2s ease, background .2s ease, box-shadow .2s ease;
    }
    .nav-cta:hover, .button:hover { transform: translateY(-2px); background: var(--teal-dark); box-shadow: 0 8px 20px rgba(7, 91, 88, .18); }
    .menu-toggle { display: none; width: 42px; height: 42px; border: 1px solid var(--line); border-radius: 4px; background: var(--white); color: var(--ink); }
    .hero { position: relative; overflow: hidden; padding: 68px 0 52px; background: #e7f2eb; }
    .hero::before {
      content: ""; position: absolute; inset: 0; pointer-events: none;
      background: linear-gradient(112deg, transparent 0 55%, rgba(240,201,87,.25) 55% 72%, transparent 72%),
                  linear-gradient(155deg, transparent 0 70%, rgba(228,111,84,.15) 70% 88%, transparent 88%);
    }
    .hero-inner { position: relative; display: grid; grid-template-columns: 1.15fr .85fr; align-items: center; gap: 42px; }
    .eyebrow { display: inline-flex; align-items: center; gap: 9px; color: var(--teal-dark); font-size: 13px; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
    .eyebrow::before { content: ""; width: 23px; height: 2px; background: var(--coral); }
    h1, h2, h3, p { margin-top: 0; }
    h1 { max-width: 650px; margin: 16px 0; font-size: clamp(38px, 5vw, 64px); line-height: 1.12; letter-spacing: 0; }
    .hero-copy { max-width: 620px; color: #44545a; font-size: 18px; }
    .hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 27px; }
    .button.secondary { color: var(--ink); background: #fff; border: 1px solid #cbd7d1; }
    .button.secondary:hover { color: var(--teal-dark); background: #f8fffb; }
    .hero-note { margin-top: 17px; color: #52635f; font-size: 13px; }
    .hero-visual { position: relative; min-height: 330px; padding: 24px; border: 1px solid #b8cec4; background: rgba(255,255,255,.72); }
    .visual-top { display: flex; align-items: center; justify-content: space-between; gap: 10px; padding-bottom: 16px; border-bottom: 1px solid var(--line); font-size: 13px; font-weight: 700; }
    .status { color: var(--teal-dark); }
    .workflow { display: grid; gap: 12px; margin: 18px 0; }
    .workflow-row { display: grid; grid-template-columns: 30px 1fr auto; align-items: center; gap: 12px; padding: 12px; background: #f2f7f3; }
    .step-no { display: grid; place-items: center; width: 28px; height: 28px; border-radius: 50%; background: var(--yellow); font-size: 12px; font-weight: 800; }
    .workflow-row small { color: var(--muted); }
    .workflow-row strong { font-size: 14px; }
    .flow-line { height: 5px; margin-top: 17px; overflow: hidden; border-radius: 5px; background: #dce6e0; }
    .flow-line span { display: block; width: 72%; height: 100%; background: var(--teal); animation: flow 2.8s ease-in-out infinite alternate; }
    @keyframes flow { from { width: 48%; } to { width: 88%; } }
    .section { padding: 68px 0; }
    .section-tint { background: #eef3ef; }
    .section-head { display: flex; align-items: end; justify-content: space-between; gap: 28px; margin-bottom: 30px; }
    .section-head h2 { max-width: 650px; margin: 8px 0 0; font-size: clamp(28px, 3.2vw, 42px); line-height: 1.2; }
    .section-head p { max-width: 470px; margin: 0; color: var(--muted); }
    .intro-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 44px; align-items: center; }
    .intro-copy p { color: var(--muted); }
    .intro-points { display: grid; grid-template-columns: 1fr 1fr; gap: 0 24px; padding: 0; margin: 24px 0 0; list-style: none; }
    .intro-points li { padding: 12px 0; border-top: 1px solid var(--line); font-weight: 700; }
    .media-frame { overflow: hidden; background: #dfece4; }
    .media-frame img { display: block; width: 100%; height: auto; }
    .services-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
    .service-item { padding: 22px; border-top: 3px solid var(--teal); background: #fff; transition: transform .2s ease, box-shadow .2s ease; }
    .service-item:hover { transform: translateY(-3px); box-shadow: 0 12px 26px rgba(32,43,49,.08); }
    .service-item h3 { margin-bottom: 7px; font-size: 18px; }
    .service-item p { margin: 0; color: var(--muted); font-size: 14px; }
    .service-item:nth-child(3n+2) { border-color: var(--coral); }
    .service-item:nth-child(3n) { border-color: #c59c23; }
    .process-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; counter-reset: flow; }
    .process-step { position: relative; padding: 0 16px 0 0; border-top: 1px solid #aebbb5; counter-increment: flow; }
    .process-step::before { content: "0" counter(flow); display: inline-block; margin: 16px 0 12px; color: var(--coral); font-size: 13px; font-weight: 800; }
    .process-step h3 { margin-bottom: 7px; font-size: 18px; }
    .process-step p { color: var(--muted); font-size: 14px; }
    .solution-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; align-items: center; }
    .solution-copy { padding: 10px 0; }
    .solution-copy h3 { margin: 12px 0; font-size: 27px; }
    .solution-copy p { color: var(--muted); }
    .solution-tags { display: flex; flex-wrap: wrap; gap: 8px; margin: 20px 0; }
    .solution-tags span { padding: 6px 10px; border: 1px solid #cad9d0; color: #34524b; background: #f7fbf8; font-size: 13px; }
    .network-band { display: flex; justify-content: space-between; align-items: center; gap: 28px; padding: 28px; color: #fff; background: var(--teal-dark); }
    .network-band h3 { margin: 0; font-size: 24px; }
    .network-band p { max-width: 650px; margin: 5px 0 0; color: #d5e6e1; }
    .network-band .button { flex-shrink: 0; color: var(--ink); background: var(--yellow); }
    .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: 14px 16px; border-bottom: 1px solid var(--line); vertical-align: top; }
    thead th { color: #fff; background: #244a45; font-size: 14px; }
    tbody th { width: 22%; background: #f2f6f3; }
    td { color: #4f5d62; font-size: 14px; }
    .rating-panel { display: flex; align-items: center; gap: 20px; margin-bottom: 22px; padding: 20px 24px; background: #f4e9c6; }
    .rating-score { color: #20473f; font-size: 43px; font-weight: 850; line-height: 1; }
    .stars { color: #b78308; letter-spacing: 3px; font-size: 20px; }
    .rating-panel p { margin: 4px 0 0; color: #4f5a51; }
    .match-form { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; padding: 24px; background: #fff; border: 1px solid var(--line); }
    .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 #cbd5d1; border-radius: 3px; color: var(--ink); background: #fff; }
    .field textarea { min-height: 120px; resize: vertical; }
    .form-foot { display: flex; align-items: center; justify-content: space-between; gap: 16px; grid-column: 1 / -1; }
    .form-foot small { color: var(--muted); }
    .reviews-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
    .review { padding: 21px; border-left: 3px solid var(--coral); background: #fff; }
    .review p { color: #435158; font-size: 14px; }
    .review strong { display: block; font-size: 14px; }
    .review span { color: var(--muted); font-size: 12px; }
    .faq-list { display: grid; grid-template-columns: 1fr 1fr; gap: 0 24px; border-top: 1px solid var(--line); }
    details { border-bottom: 1px solid var(--line); }
    summary { position: relative; padding: 17px 32px 17px 0; cursor: pointer; font-weight: 700; list-style: none; }
    summary::-webkit-details-marker { display: none; }
    summary::after { content: "+"; position: absolute; right: 3px; top: 14px; color: var(--teal); font-size: 22px; transition: transform .2s ease; }
    details[open] summary::after { transform: rotate(45deg); }
    details p { padding: 0 10px 16px 0; margin: 0; color: var(--muted); font-size: 14px; }
    .article-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
    .article-link { display: flex; flex-direction: column; min-height: 138px; padding: 18px; border: 1px solid var(--line); background: #fff; text-decoration: none; transition: border-color .2s ease, transform .2s ease; }
    .article-link:hover { transform: translateY(-2px); border-color: var(--teal); }
    .article-link small { margin-bottom: 10px; color: var(--teal); font-weight: 700; }
    .article-link strong { font-size: 16px; }
    .article-link span { margin-top: auto; padding-top: 14px; color: var(--muted); font-size: 13px; }
    .platforms { display: flex; flex-wrap: wrap; gap: 8px; }
    .platforms span { padding: 7px 11px; background: #e6eee9; color: #314c45; font-size: 13px; }
    .friend-links { display: flex; flex-wrap: wrap; gap: 8px 18px; }
    .friend-links a { color: #d8e7e2; font-size: 13px; text-decoration-color: #92b7aa; }
    .contact-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 30px; align-items: start; }
    .contact-details { display: grid; gap: 12px; margin: 22px 0; }
    .contact-details a { color: var(--teal-dark); }
    .contact-qr { display: flex; align-items: center; gap: 18px; padding: 16px; border: 1px solid var(--line); background: #fff; }
    .contact-qr img { width: 110px; height: 110px; object-fit: contain; }
    .contact-qr p { margin: 0; color: var(--muted); font-size: 14px; }
    .case-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
    .case-card { display: grid; grid-template-columns: .9fr 1.1fr; align-items: center; gap: 18px; padding: 14px; background: #fff; }
    .case-card img { display: block; width: 100%; height: auto; }
    .case-card h3 { margin: 0 0 7px; }
    .case-card p { margin: 0; color: var(--muted); font-size: 14px; }
    .site-footer { padding: 34px 0 24px; color: #e4efeb; background: #203b38; }
    .footer-top { display: grid; grid-template-columns: 1fr 1fr; gap: 30px; align-items: start; }
    .site-footer h2 { margin: 0 0 10px; color: #fff; font-size: 19px; }
    .site-footer p { color: #cbd8d3; font-size: 14px; }
    .footer-links { display: flex; flex-wrap: wrap; gap: 8px 16px; }
    .footer-links a { color: #e0ece7; font-size: 13px; text-decoration-color: #8eaaa1; }
    .footer-bottom { display: flex; justify-content: space-between; gap: 18px; margin-top: 24px; padding-top: 16px; border-top: 1px solid #49615d; color: #cbd8d3; font-size: 12px; }
    .floating-contact { position: fixed; right: 18px; bottom: 18px; z-index: 15; display: flex; flex-direction: column; gap: 8px; }
    .floating-contact a { display: grid; place-items: center; width: 48px; height: 48px; border-radius: 50%; color: #fff; background: var(--teal); box-shadow: 0 5px 18px rgba(0,0,0,.18); text-decoration: none; font-size: 12px; font-weight: 800; }
    .floating-contact a:last-child { color: var(--ink); background: var(--yellow); }
    .reveal { opacity: 0; transform: translateY(14px); transition: opacity .55s ease, transform .55s ease; }
    .reveal.visible { opacity: 1; transform: translateY(0); }
    @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: 1000px) {
      .nav-links { display: none; position: absolute; top: 72px; left: 0; right: 0; padding: 12px 20px 18px; border-bottom: 1px solid var(--line); background: var(--paper); }
      .nav-links.open { display: grid; grid-template-columns: repeat(3, 1fr); }
      .nav-links a { padding: 10px; }
      .menu-toggle { display: inline-grid; place-items: center; }
      .nav-wrap { gap: 10px; }
    }
    @media (max-width: 760px) {
      .container { width: min(var(--container), calc(100% - 32px)); }
      .header-inner { min-height: 64px; }
      .nav-links { top: 64px; }
      .nav-links.open { grid-template-columns: repeat(2, 1fr); }
      .nav-cta { min-height: 40px; padding: 8px 12px; font-size: 13px; }
      .hero { padding: 50px 0 38px; }
      .hero-inner, .intro-grid, .solution-grid, .contact-grid { grid-template-columns: 1fr; }
      .hero-inner { gap: 28px; }
      .hero-visual { min-height: 0; }
      .section { padding: 50px 0; }
      .section-head { display: block; }
      .section-head p { margin-top: 12px; }
      .services-grid, .reviews-grid { grid-template-columns: repeat(2, 1fr); }
      .process-grid { grid-template-columns: repeat(2, 1fr); row-gap: 8px; }
      .faq-list { grid-template-columns: 1fr; }
      .article-grid { grid-template-columns: 1fr 1fr; }
      .network-band { align-items: flex-start; flex-direction: column; }
      .case-grid { grid-template-columns: 1fr; }
      .footer-top { grid-template-columns: 1fr; }
    }
    @media (max-width: 480px) {
      .brand { gap: 7px; font-size: 14px; }
      .brand img { width: 32px; height: 32px; }
      .nav-cta { display: none; }
      h1 { font-size: 40px; }
      .hero-copy { font-size: 16px; }
      .hero-visual { padding: 16px; }
      .workflow-row { grid-template-columns: 28px 1fr; }
      .workflow-row small { grid-column: 2; }
      .services-grid, .reviews-grid, .article-grid { grid-template-columns: 1fr; }
      .intro-points { grid-template-columns: 1fr; }
      .process-grid { gap: 10px; }
      .match-form { grid-template-columns: 1fr; padding: 18px; }
      .field.full, .form-foot { grid-column: auto; }
      .form-foot { align-items: flex-start; flex-direction: column; }
      .case-card { grid-template-columns: 1fr; }
      .contact-qr { align-items: flex-start; flex-direction: column; }
      .footer-bottom { flex-direction: column; }
      .rating-panel { align-items: flex-start; flex-direction: column; gap: 10px; }
    }