:root {
      color-scheme: light;
      --ink: #20322e;
      --muted: #60716b;
      --green: #13795b;
      --green-dark: #0d5d45;
      --mint: #dff5e9;
      --lime: #d7f36b;
      --paper: #f7faf8;
      --line: #dce8e1;
      --white: #fff;
      --coral: #f1785d;
      --container: 1180px;
    }
    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    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; text-decoration: none; }
    img { display: block; max-width: 100%; height: auto; }
    button, input, select, textarea { font: inherit; }
    .container { width: min(var(--container), calc(100% - 40px)); margin-inline: auto; }
    .site-header { background: rgba(255,255,255,.94); border-bottom: 1px solid var(--line); }
    .nav-wrap { min-height: 76px; display: flex; align-items: center; justify-content: space-between; gap: 20px; }
    .brand { display: inline-flex; align-items: center; flex: 0 0 auto; }
    .brand img { width: 142px; max-height: 48px; object-fit: contain; }
    .nav-links { display: flex; align-items: center; justify-content: flex-end; gap: 0; flex-wrap: wrap; }
    .nav-links a { padding: 9px 10px; font-size: 13px; color: #42564e; border-radius: 5px; }
    .nav-links a:hover, .nav-links a:focus-visible { background: #eaf6ef; color: var(--green-dark); }
    .nav-cta, .button {
      display: inline-flex; justify-content: center; align-items: center; gap: 8px;
      border: 1px solid transparent; border-radius: 5px; padding: 12px 18px;
      background: var(--green); color: white; font-weight: 700; cursor: pointer;
      transition: transform .2s ease, background .2s ease, box-shadow .2s ease;
    }
    .nav-cta { flex: 0 0 auto; padding: 10px 15px; font-size: 14px; }
    .button:hover, .nav-cta:hover { transform: translateY(-2px); background: var(--green-dark); box-shadow: 0 8px 20px rgba(19,121,91,.18); }
    .button-light { background: var(--lime); color: #243324; }
    .button-light:hover { background: #c9e65d; }
    .button-outline { background: transparent; border-color: #a9c5b6; color: var(--green-dark); }
    .button-outline:hover { background: #eaf6ef; box-shadow: none; }
    .menu-toggle { display: none; border: 1px solid var(--line); background: white; border-radius: 5px; padding: 9px 12px; color: var(--ink); }
    .hero { overflow: hidden; background: linear-gradient(120deg, #e8f8ef 0%, #f7faf8 58%, #eff7cd 100%); border-bottom: 1px solid var(--line); }
    .hero-inner { padding-top: 70px; padding-bottom: 54px; }
    .hero-copy { max-width: 780px; }
    .eyebrow { margin: 0 0 16px; color: var(--green-dark); font-size: 13px; font-weight: 800; letter-spacing: 0; text-transform: uppercase; }
    h1 { max-width: 740px; margin: 0; font-size: clamp(38px, 7vw, 68px); line-height: 1.12; letter-spacing: 0; }
    .hero-copy > p:not(.eyebrow) { max-width: 660px; margin: 22px 0 26px; color: #4d6259; font-size: 18px; }
    .hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
    .hero-proof { display: flex; flex-wrap: wrap; gap: 10px 24px; margin-top: 30px; color: #426252; font-size: 14px; }
    .hero-proof span::before { content: "✓"; display: inline-grid; place-items: center; width: 20px; height: 20px; margin-right: 7px; border-radius: 50%; background: var(--lime); color: var(--green-dark); font-weight: 900; }
    .hero-bottom { display: grid; grid-template-columns: repeat(4,1fr); gap: 0; border-top: 1px solid #cfe2d6; }
    .metric { padding: 19px 20px 0 0; }
    .metric strong { display: block; color: var(--green-dark); font-size: 21px; line-height: 1.3; }
    .metric span { color: var(--muted); font-size: 13px; }
    main { overflow: hidden; }
    .section { padding: 76px 0; border-bottom: 1px solid var(--line); }
    .section-head { max-width: 720px; margin-bottom: 32px; }
    .section-head h2 { margin: 0 0 10px; font-size: clamp(27px, 4vw, 38px); line-height: 1.2; letter-spacing: 0; }
    .section-head p { margin: 0; color: var(--muted); }
    .intro-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 54px; align-items: start; }
    .intro-copy p { margin: 0 0 15px; color: #50635b; }
    .intro-copy strong { color: var(--green-dark); }
    .intro-list { display: grid; grid-template-columns: 1fr 1fr; gap: 0 24px; border-top: 1px solid var(--line); }
    .intro-list div { padding: 15px 0; border-bottom: 1px solid var(--line); }
    .intro-list strong { display: block; margin-bottom: 4px; }
    .intro-list span { color: var(--muted); font-size: 14px; }
    .service-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 1px; border: 1px solid var(--line); background: var(--line); }
    .service-item { min-width: 0; padding: 23px; background: white; transition: background .2s ease; }
    .service-item:hover { background: #f0faf4; }
    .service-item .index { color: var(--green); font-size: 12px; font-weight: 800; }
    .service-item h3 { margin: 8px 0 7px; font-size: 18px; }
    .service-item p { margin: 0; color: var(--muted); font-size: 14px; }
    .tool-band { padding: 32px; background: #e8f5ec; border-left: 5px solid var(--green); }
    .tool-band h3 { margin: 0 0 10px; font-size: 20px; }
    .tag-list { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; }
    .tag-list span { display: inline-block; padding: 6px 10px; background: white; border: 1px solid #cfe2d6; color: #35584a; font-size: 13px; }
    .steps { display: grid; grid-template-columns: repeat(4,1fr); gap: 22px; counter-reset: step; }
    .step { padding-top: 16px; border-top: 3px solid var(--green); counter-increment: step; }
    .step::before { content: "0" counter(step); display: block; margin-bottom: 18px; color: var(--green); font-size: 13px; font-weight: 800; }
    .step h3 { margin: 0 0 7px; font-size: 18px; }
    .step p { margin: 0; color: var(--muted); font-size: 14px; }
    .industry-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 28px; }
    .industry { border-top: 1px solid var(--line); padding-top: 18px; }
    .industry h3 { margin: 0 0 8px; font-size: 18px; }
    .industry p { margin: 0; color: var(--muted); font-size: 14px; }
    .network { display: grid; grid-template-columns: 1.1fr .9fr; gap: 44px; align-items: start; }
    .network p { color: var(--muted); }
    .network-list { display: grid; grid-template-columns: 1fr 1fr; gap: 0 20px; }
    .network-list div { padding: 12px 0; border-bottom: 1px solid var(--line); font-weight: 650; }
    .case-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; }
    .case { overflow: hidden; background: white; border: 1px solid var(--line); }
    .case .media { aspect-ratio: 16 / 8; overflow: hidden; background: #eaf3ed; }
    .case .media img { width: 100%; height: 100%; object-fit: cover; }
    .case-copy { padding: 20px 22px 23px; }
    .case-copy h3 { margin: 0 0 7px; }
    .case-copy p { margin: 0; color: var(--muted); font-size: 14px; }
    .score-panel { display: grid; grid-template-columns: .75fr 1.25fr; gap: 36px; align-items: start; padding: 30px; background: #e7f5eb; }
    .score { border-right: 1px solid #bdd9c8; }
    .score strong { display: block; color: var(--green-dark); font-size: 54px; line-height: 1.1; }
    .stars { color: #d28321; font-size: 23px; letter-spacing: 0; }
    .score small { color: var(--muted); }
    .table-wrap { overflow-x: auto; }
    table { width: 100%; border-collapse: collapse; background: white; font-size: 14px; }
    th, td { padding: 13px 14px; border: 1px solid var(--line); text-align: left; vertical-align: top; }
    th { background: #f1f8f3; color: #29483a; }
    .comparison { min-width: 570px; }
    .highlight { color: var(--green-dark); font-weight: 750; }
    .match-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 44px; align-items: start; }
    .match-copy p { color: var(--muted); }
    .form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 15px; }
    .field { display: flex; flex-direction: column; gap: 6px; }
    .field-wide { grid-column: 1 / -1; }
    label { font-size: 13px; font-weight: 700; }
    input, select, textarea { width: 100%; border: 1px solid #c9d9d0; border-radius: 4px; background: white; color: var(--ink); padding: 12px; }
    input:focus, select:focus, textarea:focus { outline: 2px solid #9ed6b6; border-color: var(--green); }
    textarea { min-height: 115px; resize: vertical; }
    .form-note { margin: 10px 0 0; color: var(--muted); font-size: 12px; }
    .price-note { padding: 21px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); color: var(--muted); }
    .price-note strong { color: var(--ink); }
    .review-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 1px; border: 1px solid var(--line); background: var(--line); }
    .review { padding: 21px; background: white; }
    .review blockquote { margin: 0 0 16px; color: #40564c; font-size: 14px; }
    .review cite { color: var(--green-dark); font-size: 13px; font-style: normal; font-weight: 750; }
    .faq-list { border-top: 1px solid var(--line); }
    .faq-list details { border-bottom: 1px solid var(--line); }
    .faq-list summary { position: relative; padding: 17px 36px 17px 0; cursor: pointer; font-weight: 700; list-style: none; }
    .faq-list summary::-webkit-details-marker { display: none; }
    .faq-list summary::after { content: "+"; position: absolute; right: 4px; top: 13px; color: var(--green); font-size: 23px; }
    .faq-list details[open] summary::after { content: "−"; }
    .faq-list details p { margin: 0; padding: 0 35px 17px 0; color: var(--muted); font-size: 14px; }
    .article-links { display: grid; grid-template-columns: repeat(2,1fr); gap: 0 28px; }
    .article-links a { display: flex; align-items: center; justify-content: space-between; gap: 15px; padding: 15px 0; border-bottom: 1px solid var(--line); color: var(--green-dark); font-weight: 650; }
    .article-links a::after { content: "↗"; flex: 0 0 auto; }
    .contact-row { display: grid; grid-template-columns: 1fr 1fr; gap: 30px; align-items: start; }
    .contact-details { display: grid; gap: 12px; }
    .contact-details p { margin: 0; color: var(--muted); }
    .contact-details a { color: var(--green-dark); font-weight: 700; }
    .qr { width: 152px; padding: 8px; background: white; border: 1px solid var(--line); }
    .partner-links { display: flex; flex-wrap: wrap; gap: 10px 20px; margin-top: 22px; }
    .partner-links a { color: var(--green-dark); text-decoration: underline; text-underline-offset: 3px; font-size: 14px; }
    .footer { padding: 25px 0; background: #e8f2eb; color: #314b3d; }
    .footer-inner { display: flex; align-items: center; justify-content: space-between; gap: 16px; font-size: 13px; }
    .footer p { margin: 0; }
    .footer a { color: #1d6348; }
    .float-contact { position: fixed; z-index: 10; right: 18px; bottom: 20px; display: grid; gap: 8px; }
    .float-contact a { display: grid; place-items: center; width: 48px; height: 48px; border-radius: 50%; background: var(--green); color: white; box-shadow: 0 5px 18px rgba(20,75,52,.2); font-size: 13px; font-weight: 800; }
    .float-contact a:last-child { background: var(--ink); }
    .reveal { opacity: 0; transform: translateY(12px); transition: opacity .5s ease, transform .5s ease; }
    .reveal.visible { opacity: 1; transform: translateY(0); }
    @media (max-width: 980px) {
      .nav-wrap { flex-wrap: wrap; padding: 13px 0; }
      .menu-toggle { display: inline-flex; align-items: center; }
      .nav-links { display: none; order: 3; width: 100%; justify-content: flex-start; padding-top: 8px; border-top: 1px solid var(--line); }
      .nav-links.open { display: flex; }
      .nav-links a { padding: 9px 12px; }
      .nav-cta { margin-left: auto; }
      .service-grid { grid-template-columns: repeat(2,1fr); }
      .steps { grid-template-columns: repeat(2,1fr); }
    }
    @media (max-width: 680px) {
      .container { width: min(var(--container), calc(100% - 30px)); }
      .hero-inner { padding-top: 48px; padding-bottom: 36px; }
      .hero-copy > p:not(.eyebrow) { font-size: 16px; }
      .hero-bottom { grid-template-columns: repeat(2,1fr); row-gap: 16px; }
      .metric { padding-right: 10px; }
      .section { padding: 54px 0; }
      .intro-grid, .network, .match-grid, .contact-row, .score-panel { grid-template-columns: 1fr; gap: 25px; }
      .intro-list, .industry-grid, .review-grid { grid-template-columns: 1fr; }
      .service-grid { grid-template-columns: 1fr; }
      .case-grid, .article-links { grid-template-columns: 1fr; }
      .steps { grid-template-columns: 1fr 1fr; gap: 24px 16px; }
      .score { border-right: 0; border-bottom: 1px solid #bdd9c8; padding-bottom: 20px; }
      .form-grid { grid-template-columns: 1fr; }
      .field-wide { grid-column: auto; }
      .tool-band { padding: 23px; }
      .footer-inner { align-items: flex-start; flex-direction: column; }
      .float-contact { right: 12px; bottom: 12px; }
      .float-contact a { width: 44px; height: 44px; }
    }
    @media (prefers-reduced-motion: reduce) {
      *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; }
      .reveal { opacity: 1; transform: none; }
    }