:root {
      color-scheme: light;
      --ink: #18251d;
      --muted: #5e6c62;
      --green: #287a43;
      --green-dark: #175b32;
      --lime: #c9ed68;
      --mint: #eaf3e8;
      --paper: #f5f8f3;
      --line: #dce5d9;
      --white: #fff;
      --container: 1160px;
    }
    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    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; }
    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(245,248,243,.96); border-bottom: 1px solid var(--line); backdrop-filter: blur(12px); }
    .nav-wrap { min-height: 72px; display: flex; align-items: center; justify-content: space-between; gap: 20px; }
    .brand { display: inline-flex; align-items: center; gap: 10px; flex: 0 0 auto; font-weight: 800; font-size: 19px; }
    .ai-page-logo { width: 38px; max-width: 100%; height: auto; }
    .nav-links { display: flex; align-items: center; justify-content: flex-end; gap: 0; flex-wrap: wrap; font-size: 13px; color: #3f5044; }
    .nav-links a { padding: 8px 9px; border-radius: 5px; }
    .nav-links a:hover { background: #e6efe3; color: var(--green-dark); }
    .nav-actions { display: flex; gap: 9px; align-items: center; flex: 0 0 auto; }
    .menu-toggle { display: none; border: 1px solid var(--line); border-radius: 5px; background: white; color: var(--ink); padding: 8px 12px; }
    .button { display: inline-flex; justify-content: center; align-items: center; gap: 8px; min-height: 45px; padding: 10px 18px; border: 1px solid transparent; border-radius: 5px; background: var(--green); color: white; font-weight: 700; transition: transform .18s ease, box-shadow .18s ease, background .18s ease; }
    .button:hover { transform: translateY(-2px); box-shadow: 0 8px 20px rgba(25,86,48,.18); background: var(--green-dark); }
    .button-outline { background: transparent; color: var(--green-dark); border-color: #8aaa8e; }
    .button-outline:hover { color: white; }
    .hero { position: relative; overflow: hidden; padding: 74px 0 62px; background: #e9f3e5; border-bottom: 1px solid #d9e7d5; }
    .hero::before { content: ""; position: absolute; width: 380px; height: 380px; right: -110px; top: -190px; border: 1px solid rgba(40,122,67,.15); border-radius: 50%; box-shadow: 0 0 0 35px rgba(40,122,67,.035), 0 0 0 75px rgba(40,122,67,.025); }
    .hero::after { content: ""; position: absolute; right: 12%; bottom: 28px; width: 68px; height: 68px; border: 1px solid rgba(40,122,67,.25); transform: rotate(45deg); }
    .hero-inner { position: relative; z-index: 1; max-width: 850px; }
    .eyebrow { display: inline-flex; align-items: center; gap: 9px; color: var(--green-dark); font-size: 13px; font-weight: 800; letter-spacing: 0; }
    .eyebrow::before { content: ""; width: 24px; height: 3px; background: var(--green); }
    h1 { max-width: 800px; margin: 18px 0 16px; font-size: clamp(36px, 5vw, 62px); line-height: 1.15; letter-spacing: 0; }
    .hero-copy { max-width: 710px; margin: 0; color: #46594a; font-size: 18px; }
    .hero-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 28px; }
    .hero-note { margin-top: 17px; color: #526455; font-size: 13px; }
    .hero-note strong { color: var(--green-dark); }
    .stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; margin-top: 48px; border-top: 1px solid #cbdcc8; }
    .stat { padding: 20px 22px 0 0; }
    .stat + .stat { padding-left: 22px; border-left: 1px solid #cbdcc8; }
    .stat strong { display: block; color: var(--green-dark); font-size: 19px; }
    .stat span { color: var(--muted); font-size: 13px; }
    main { overflow: hidden; }
    .section { padding: 66px 0; }
    .section-tint { background: #edf4e9; border-block: 1px solid #e0e9dc; }
    .section-head { display: flex; align-items: end; justify-content: space-between; gap: 24px; margin-bottom: 28px; }
    .section-head > div { max-width: 720px; }
    .section-kicker { color: var(--green); font-weight: 800; font-size: 12px; }
    h2 { margin: 6px 0 8px; font-size: 30px; line-height: 1.25; letter-spacing: 0; }
    .section-head p { margin: 0; max-width: 700px; color: var(--muted); }
    h3 { margin: 0 0 8px; font-size: 18px; line-height: 1.4; }
    .intro-grid { display: grid; grid-template-columns: 1.3fr .7fr; gap: 36px; align-items: start; }
    .intro-copy { font-size: 16px; color: #405044; }
    .intro-copy p { margin: 0 0 16px; }
    .intro-aside { padding: 22px 0 22px 25px; border-left: 3px solid var(--lime); }
    .intro-aside strong { display: block; margin-bottom: 7px; color: var(--green-dark); font-size: 18px; }
    .intro-aside p { margin: 0; color: var(--muted); font-size: 14px; }
    .capabilities { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px 28px; }
    .capability { padding: 22px 0 19px; border-top: 2px solid #b5d49e; }
    .capability p { margin: 0; color: var(--muted); font-size: 14px; }
    .capability-index { display: block; margin-bottom: 12px; color: #67966b; font-size: 12px; font-weight: 800; }
    .scenario-list { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0 22px; }
    .scenario { padding: 19px 0; border-top: 1px solid var(--line); }
    .scenario p { margin: 0; color: var(--muted); font-size: 13px; }
    .scenario h3 { font-size: 16px; }
    .workflow { display: grid; grid-template-columns: repeat(5, 1fr); gap: 14px; counter-reset: flow; }
    .step { position: relative; padding: 18px 16px 16px; background: white; border: 1px solid var(--line); border-radius: 5px; }
    .step::before { counter-increment: flow; content: "0" counter(flow); display: block; margin-bottom: 18px; color: var(--green); font-size: 12px; font-weight: 800; }
    .step p { margin: 0; color: var(--muted); font-size: 13px; }
    .offer-strip { display: flex; align-items: center; justify-content: space-between; gap: 24px; margin-top: 25px; padding: 20px 22px; background: var(--green-dark); color: white; border-radius: 5px; }
    .offer-strip p { margin: 3px 0 0; color: #e0efdf; font-size: 14px; }
    .offer-strip .button { background: var(--lime); color: #18321d; }
    .offer-strip .button:hover { background: #d9f392; }
    .industries { display: grid; grid-template-columns: 1fr 1fr; gap: 34px; }
    .industry { padding: 23px 0; border-top: 2px solid var(--green); }
    .industry p { margin: 0; color: var(--muted); }
    .industry-tags, .tag-cloud { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
    .industry-tags span, .tag-cloud span { padding: 5px 10px; border: 1px solid #cfddc9; border-radius: 3px; color: #385640; background: #f7faf5; font-size: 12px; }
    .network { display: flex; flex-wrap: wrap; gap: 10px 20px; padding: 20px 0; border-block: 1px solid var(--line); }
    .network span { color: #374c3d; font-weight: 700; font-size: 14px; }
    .network span::before { content: ""; display: inline-block; width: 7px; height: 7px; margin: 0 8px 1px 0; border-radius: 50%; background: #73a94b; }
    .table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 5px; background: white; }
    table { width: 100%; min-width: 720px; border-collapse: collapse; text-align: left; }
    th, td { padding: 14px 16px; border-bottom: 1px solid #e7ece4; vertical-align: top; }
    th { background: #eaf3e8; color: #244b30; font-size: 13px; }
    td { color: #49574c; font-size: 14px; }
    tbody tr:last-child td { border-bottom: 0; }
    .rating { display: flex; align-items: center; gap: 18px; margin-bottom: 20px; padding: 20px 22px; background: #e9f3e5; border-left: 4px solid var(--green); }
    .rating-score { color: var(--green-dark); font-size: 34px; font-weight: 800; line-height: 1; }
    .rating-stars { color: #377e42; font-size: 18px; letter-spacing: 0; }
    .rating small { display: block; color: var(--muted); font-size: 12px; }
    .stories { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
    .story { padding: 0 0 18px; border-bottom: 1px solid #cadbc5; }
    .story-label { color: var(--green); font-size: 12px; font-weight: 800; }
    .story h3 { margin-top: 8px; }
    .story p { margin: 0; color: var(--muted); font-size: 14px; }
    .quotes { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
    .quote { margin: 0; padding: 17px; border: 1px solid var(--line); border-radius: 5px; background: white; }
    .quote p { margin: 0 0 12px; color: #46564a; font-size: 14px; }
    .quote cite { color: var(--green-dark); font-size: 12px; font-style: normal; font-weight: 800; }
    .price-band { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 22px; padding: 24px 0; border-block: 1px solid var(--line); }
    .price-band p { margin: 6px 0 0; color: var(--muted); }
    .price-band strong { color: var(--green-dark); font-size: 17px; }
    .price-note { font-size: 12px; }
    .faq-list { border-top: 1px solid var(--line); }
    details { border-bottom: 1px solid var(--line); }
    summary { position: relative; padding: 16px 34px 16px 0; cursor: pointer; font-weight: 700; list-style: none; }
    summary::-webkit-details-marker { display: none; }
    summary::after { content: "+"; position: absolute; right: 5px; top: 13px; color: var(--green); font-size: 21px; }
    details[open] summary::after { content: "−"; }
    details p { margin: 0; padding: 0 34px 17px 0; color: var(--muted); font-size: 14px; }
    .articles { display: grid; grid-template-columns: repeat(5, 1fr); gap: 12px; }
    .article-link { display: flex; min-height: 76px; align-items: center; justify-content: space-between; gap: 10px; padding: 14px; border: 1px solid var(--line); border-radius: 4px; background: #fff; font-size: 13px; font-weight: 700; }
    .article-link span:last-child { color: var(--green); }
    .asset-grid { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 16px; }
    .asset { margin: 0; }
    .asset img { display: block; width: 100%; height: auto; border-radius: 4px; }
    .asset figcaption { margin-top: 7px; color: var(--muted); font-size: 12px; }
    .contact-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 44px; align-items: start; }
    .contact-info p { color: var(--muted); }
    .contact-line { padding: 11px 0; border-bottom: 1px solid var(--line); font-size: 14px; }
    .contact-line strong { display: inline-block; min-width: 88px; color: var(--green-dark); }
    .contact-form { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
    .field { display: grid; gap: 6px; }
    .field-wide { grid-column: 1 / -1; }
    label { color: #3e5144; font-size: 13px; font-weight: 700; }
    input, select, textarea { width: 100%; min-height: 44px; padding: 10px 12px; border: 1px solid #cbd8c8; border-radius: 4px; background: white; color: var(--ink); }
    textarea { min-height: 110px; resize: vertical; }
    input:focus, select:focus, textarea:focus { outline: 2px solid #9ecb7c; outline-offset: 1px; }
    .form-submit { grid-column: 1 / -1; display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
    .form-submit small { color: var(--muted); }
    .qr-wrap { width: 132px; margin-top: 15px; }
    .qr-wrap img { display: block; width: 132px; height: auto; border: 1px solid var(--line); }
    .site-footer { padding: 30px 0 24px; background: #e7efe4; color: #26382b; border-top: 1px solid #d5e2d1; }
    .footer-top { display: flex; align-items: start; justify-content: space-between; gap: 30px; }
    .footer-top p { margin: 7px 0 0; color: #526255; font-size: 13px; }
    .footer-links { display: flex; flex-wrap: wrap; gap: 7px 16px; max-width: 650px; font-size: 13px; }
    .footer-links a { color: #33533b; }
    .footer-links a:hover { text-decoration: underline; }
    .footer-bottom { margin-top: 22px; padding-top: 14px; border-top: 1px solid #ccd9c9; color: #5b685d; font-size: 12px; }
    .float-contact { position: fixed; right: 18px; bottom: 20px; z-index: 15; }
    .float-contact a { display: flex; align-items: center; gap: 8px; padding: 11px 15px; border-radius: 5px; background: var(--green-dark); color: white; box-shadow: 0 5px 18px rgba(24,64,34,.2); font-size: 13px; font-weight: 700; }
    .reveal { opacity: 0; transform: translateY(12px); transition: opacity .5s ease, transform .5s ease; }
    .reveal.is-visible { opacity: 1; transform: none; }
    @media (prefers-reduced-motion: reduce) {
      *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; }
      .reveal { opacity: 1; transform: none; }
    }
    @media (max-width: 1050px) {
      .nav-links { display: none; position: absolute; top: 71px; left: 0; right: 0; padding: 12px 20px 18px; background: var(--paper); border-bottom: 1px solid var(--line); }
      .nav-links.is-open { display: flex; justify-content: flex-start; }
      .menu-toggle { display: inline-flex; }
      .nav-actions .button-outline { display: none; }
    }
    @media (max-width: 760px) {
      .container { width: min(var(--container), calc(100% - 32px)); }
      .nav-wrap { min-height: 64px; }
      .nav-links { top: 63px; }
      .nav-links.is-open { gap: 2px 5px; }
      .nav-links a { padding: 7px 9px; }
      .hero { padding: 52px 0 40px; }
      .hero::after { right: 10%; bottom: 20px; width: 42px; height: 42px; }
      .hero-copy { font-size: 16px; }
      .stats { grid-template-columns: 1fr 1fr; margin-top: 34px; }
      .stat { padding: 15px 10px 12px 0; }
      .stat + .stat { padding-left: 14px; }
      .stat:nth-child(3) { border-left: 0; padding-left: 0; border-top: 1px solid #cbdcc8; }
      .stat:nth-child(4) { border-top: 1px solid #cbdcc8; }
      .section { padding: 48px 0; }
      .section-head { display: block; }
      .section-head .button { margin-top: 15px; }
      h2 { font-size: 26px; }
      .intro-grid, .contact-grid { grid-template-columns: 1fr; gap: 20px; }
      .intro-aside { padding-left: 18px; }
      .capabilities { grid-template-columns: 1fr 1fr; gap: 10px 18px; }
      .scenario-list { grid-template-columns: 1fr 1fr; gap: 0 18px; }
      .workflow { grid-template-columns: 1fr 1fr; }
      .step:last-child { grid-column: 1 / -1; }
      .industries { grid-template-columns: 1fr; gap: 8px; }
      .stories, .quotes { grid-template-columns: 1fr 1fr; }
      .articles { grid-template-columns: 1fr 1fr; }
      .asset-grid { grid-template-columns: 1fr 1fr; }
      .asset:last-child { grid-column: 1 / -1; max-width: 420px; }
      .footer-top { flex-direction: column; }
      .offer-strip { align-items: flex-start; flex-direction: column; }
    }
    @media (max-width: 460px) {
      .brand { font-size: 17px; }
      .nav-actions { gap: 6px; }
      .nav-actions .button { min-height: 39px; padding: 8px 11px; font-size: 13px; }
      .hero-actions .button { flex: 1 1 auto; }
      .capabilities, .scenario-list, .workflow, .stories, .quotes, .articles, .asset-grid { grid-template-columns: 1fr; }
      .step:last-child, .asset:last-child { grid-column: auto; }
      .asset:last-child { max-width: none; }
      .price-band { grid-template-columns: 1fr; }
      .contact-form { grid-template-columns: 1fr; }
      .field-wide, .form-submit { grid-column: auto; }
      .rating { align-items: flex-start; flex-wrap: wrap; }
      .float-contact { right: 12px; bottom: 12px; }
    }