:root {
      color-scheme: light;
      --ink: #182620;
      --muted: #586760;
      --paper: #f8faf8;
      --white: #fff;
      --line: #dce6df;
      --green: #146e52;
      --green-dark: #0d4939;
      --lime: #c5ef70;
      --coral: #ef795d;
      --blue: #d9eff3;
      --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: 1.65;
    }
    a { color: inherit; }
    button, input, select, textarea { font: inherit; }
    .container { width: min(var(--container), calc(100% - 40px)); margin-inline: auto; }
    .site-header { position: relative; z-index: 5; background: rgba(248,250,248,.96); border-bottom: 1px solid var(--line); }
    .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; text-decoration: none; flex: 0 0 auto; font-weight: 800; }
    .ai-page-logo { display: block; width: 42px; max-width: 100%; height: auto; }
    .brand span { font-size: 18px; }
    .nav-links { display: flex; align-items: center; justify-content: flex-end; flex-wrap: wrap; gap: 0; }
    .nav-links a { padding: 8px 10px; color: #405149; text-decoration: none; font-size: 13px; }
    .nav-links a:hover { color: var(--green); }
    .nav-actions { display: flex; align-items: center; gap: 10px; flex: 0 0 auto; }
    .menu-toggle { display: none; border: 1px solid var(--line); background: var(--white); color: var(--ink); width: 42px; height: 42px; border-radius: 4px; cursor: pointer; }
    .button { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 46px; padding: 0 19px; border: 1px solid transparent; border-radius: 3px; background: var(--green); color: #fff; font-weight: 700; text-decoration: none; cursor: pointer; transition: transform .2s ease, background .2s ease, box-shadow .2s ease; }
    .button:hover { transform: translateY(-2px); background: var(--green-dark); box-shadow: 0 8px 18px rgba(13,73,57,.16); }
    .button-light { background: #fff; color: var(--green-dark); border-color: #b9d1c3; }
    .button-light:hover { background: #eff8f1; }
    .button-coral { background: var(--coral); color: #241d19; }
    .button-coral:hover { background: #f58b71; }
    .hero { overflow: hidden; position: relative; padding: 78px 0 52px; color: #fff; background: linear-gradient(118deg, #0c493a 0%, #146e52 53%, #208c69 100%); }
    .hero:before { content: ""; position: absolute; inset: 0; opacity: .22; background-image: linear-gradient(rgba(255,255,255,.16) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.16) 1px, transparent 1px); background-size: 46px 46px; mask-image: linear-gradient(90deg, transparent, #000 35%, #000); }
    .hero:after { content: ""; position: absolute; width: 360px; aspect-ratio: 1; border: 1px solid rgba(197,239,112,.32); border-radius: 50%; right: -90px; top: 32px; box-shadow: 0 0 0 32px rgba(197,239,112,.06), 0 0 0 68px rgba(197,239,112,.04); }
    .hero-inner { position: relative; z-index: 1; display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(250px, .8fr); gap: 50px; align-items: center; }
    .eyebrow { display: inline-flex; align-items: center; gap: 9px; color: var(--lime); font-size: 13px; font-weight: 700; letter-spacing: 0; }
    .eyebrow:before { content: ""; width: 22px; height: 2px; background: currentColor; }
    h1 { max-width: 680px; margin: 18px 0 16px; font-size: clamp(38px, 6vw, 66px); line-height: 1.12; letter-spacing: 0; }
    .hero-copy { max-width: 620px; margin: 0; color: #e1f0e8; font-size: 17px; }
    .hero-buttons { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
    .hero .button { min-height: 50px; }
    .hero .button-light { background: var(--lime); border-color: var(--lime); color: #183b2a; }
    .hero-note { margin: 15px 0 0; color: #d0e3d8; font-size: 13px; }
    .hero-panel { position: relative; padding: 26px; border: 1px solid rgba(255,255,255,.27); background: rgba(9,52,40,.37); backdrop-filter: blur(4px); }
    .hero-panel h2 { margin: 0 0 18px; font-size: 18px; }
    .hero-points { display: grid; gap: 0; margin: 0; padding: 0; list-style: none; }
    .hero-points li { display: flex; justify-content: space-between; gap: 16px; padding: 13px 0; border-top: 1px solid rgba(255,255,255,.2); color: #e8f3ec; font-size: 14px; }
    .hero-points strong { color: var(--lime); text-align: right; }
    .metric-strip { position: relative; z-index: 1; display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; margin-top: 54px; border-top: 1px solid rgba(255,255,255,.28); }
    .metric { padding: 18px 20px 0 0; }
    .metric strong { display: block; color: var(--lime); font-size: 21px; }
    .metric span { color: #d9ebe1; font-size: 13px; }
    .section { padding: 76px 0; }
    .section-tint { background: #edf4ef; border-block: 1px solid #e0e9e2; }
    .section-heading { display: flex; justify-content: space-between; align-items: end; gap: 30px; margin-bottom: 32px; }
    .section-heading > div { max-width: 680px; }
    .section-kicker { margin: 0 0 8px; color: var(--green); font-size: 12px; font-weight: 800; text-transform: uppercase; }
    h2 { margin: 0; font-size: clamp(27px, 3.5vw, 39px); line-height: 1.2; letter-spacing: 0; }
    .section-heading p:last-child { max-width: 490px; margin: 0; color: var(--muted); }
    .intro-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 46px; align-items: start; }
    .intro-copy p { margin: 0 0 15px; color: var(--muted); }
    .intro-copy p strong { color: var(--ink); }
    .intro-aside { padding: 24px 26px; border-left: 4px solid var(--coral); background: #fff; }
    .intro-aside h3 { margin: 0 0 8px; font-size: 18px; }
    .intro-aside p { margin: 0; color: var(--muted); }
    .pill-list { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; }
    .pill { padding: 6px 10px; border: 1px solid #c8d9ce; border-radius: 2px; color: #325342; background: #f8fbf8; font-size: 12px; }
    .service-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
    .service-item { min-height: 158px; padding: 21px; background: #fff; border: 1px solid var(--line); transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease; }
    .service-item:hover { transform: translateY(-3px); border-color: #8ebba3; box-shadow: 0 12px 24px rgba(22,65,46,.08); }
    .service-item .num { color: var(--coral); font-size: 12px; font-weight: 800; }
    .service-item h3 { margin: 7px 0 6px; font-size: 17px; }
    .service-item p { margin: 0; color: var(--muted); font-size: 14px; }
    .process { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; counter-reset: step; }
    .process-step { position: relative; padding: 20px 22px 20px 0; border-top: 2px solid #a9c6b5; counter-increment: step; }
    .process-step:before { content: "0" counter(step); display: block; margin-bottom: 15px; color: var(--green); font-weight: 800; }
    .process-step h3 { margin: 0 0 7px; font-size: 17px; }
    .process-step p { margin: 0; color: var(--muted); font-size: 14px; }
    .industry-layout { display: grid; grid-template-columns: .8fr 1.2fr; gap: 42px; }
    .industry-lead { padding: 28px; color: #fff; background: var(--green-dark); }
    .industry-lead h3 { margin: 0 0 12px; color: var(--lime); font-size: 23px; }
    .industry-lead p { margin: 0 0 18px; color: #e0eee5; }
    .industry-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0 25px; }
    .industry-list div { padding: 15px 0; border-bottom: 1px solid var(--line); }
    .industry-list strong { display: block; margin-bottom: 4px; }
    .industry-list span { color: var(--muted); font-size: 13px; }
    .network { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: center; }
    .network-visual { padding: 27px; color: #fff; background: #1c624b; }
    .network-visual h3 { margin: 0 0 16px; font-size: 20px; }
    .network-nodes { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
    .network-nodes span { padding: 11px 8px; text-align: center; border: 1px solid rgba(255,255,255,.32); color: #f2faf4; font-size: 13px; }
    .network-copy p { color: var(--muted); }
    .network-copy ul { padding-left: 20px; color: var(--muted); }
    .showcase-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
    .showcase { overflow: hidden; background: #fff; border: 1px solid var(--line); }
    .media-frame { overflow: hidden; background: #e4eee7; }
    .media-frame img { display: block; width: 100%; height: auto; object-fit: contain; }
    .showcase-copy { padding: 19px 21px; }
    .showcase-copy h3 { margin: 0 0 5px; font-size: 18px; }
    .showcase-copy p { margin: 0; color: var(--muted); font-size: 14px; }
    .square-case { display: grid; grid-template-columns: minmax(0, .7fr) 1.3fr; align-items: center; gap: 24px; margin-top: 18px; padding: 18px; background: #fff; border: 1px solid var(--line); }
    .square-case .media-frame { max-width: 250px; }
    .table-wrap { overflow-x: auto; border: 1px solid var(--line); background: #fff; }
    table { width: 100%; min-width: 700px; border-collapse: collapse; text-align: left; }
    th, td { padding: 15px 16px; border-bottom: 1px solid var(--line); vertical-align: top; }
    thead th { color: #fff; background: var(--green-dark); font-size: 14px; }
    tbody th { width: 22%; background: #f2f7f3; font-size: 14px; }
    td { color: var(--muted); font-size: 14px; }
    .rating-band { display: flex; align-items: center; justify-content: space-between; gap: 24px; margin-bottom: 20px; padding: 20px 23px; background: #e4f2e7; }
    .rating-band strong { color: var(--green-dark); font-size: 25px; }
    .rating-band span { color: #425c4b; }
    .stars { color: #c66c3e; font-size: 21px; letter-spacing: 0; }
    .match-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 42px; align-items: start; }
    .match-copy { padding-top: 8px; }
    .match-copy p { color: var(--muted); }
    .match-copy .button { margin-top: 9px; }
    .price-line { display: grid; grid-template-columns: 1fr auto; gap: 22px; align-items: center; padding: 18px 0; border-bottom: 1px solid var(--line); }
    .price-line h3 { margin: 0 0 4px; font-size: 16px; }
    .price-line p { margin: 0; color: var(--muted); font-size: 13px; }
    .price-line strong { color: var(--green); white-space: nowrap; }
    .reviews { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
    .review { padding: 20px; background: #fff; border-top: 3px solid var(--lime); }
    .review blockquote { margin: 0 0 15px; color: #36463d; font-size: 14px; }
    .review cite { color: var(--muted); font-size: 12px; font-style: normal; font-weight: 700; }
    .faq-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0 28px; }
    details { border-bottom: 1px solid var(--line); }
    summary { position: relative; padding: 17px 34px 17px 0; cursor: pointer; font-weight: 700; list-style: none; }
    summary::-webkit-details-marker { display: none; }
    summary:after { content: "+"; position: absolute; right: 3px; top: 12px; color: var(--green); font-size: 24px; font-weight: 400; }
    details[open] summary:after { content: "−"; }
    details p { margin: 0; padding: 0 22px 17px 0; color: var(--muted); font-size: 14px; }
    .article-section { display: grid; grid-template-columns: .8fr 1.2fr; gap: 40px; align-items: start; }
    .article-list { display: grid; grid-template-columns: 1fr 1fr; gap: 0 24px; }
    .article-list a { display: block; padding: 14px 0; border-bottom: 1px solid var(--line); color: var(--ink); text-decoration: none; }
    .article-list a:hover { color: var(--green); }
    .article-list small { display: block; color: var(--muted); }
    .form-layout { display: grid; grid-template-columns: .75fr 1.25fr; gap: 45px; align-items: start; }
    .contact-info { padding: 26px; background: var(--green-dark); color: #fff; }
    .contact-info h3 { margin: 0 0 10px; color: var(--lime); font-size: 22px; }
    .contact-info p { margin: 8px 0; color: #e1eee6; }
    .contact-info a { color: var(--lime); }
    .contact-qr { width: 150px; margin-top: 16px; padding: 7px; background: #fff; }
    .contact-qr img { display: block; width: 100%; height: auto; }
    .form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 15px; }
    .field { display: grid; gap: 6px; }
    .field-wide { grid-column: 1 / -1; }
    .field label { font-size: 13px; font-weight: 700; }
    .field input, .field select, .field textarea { width: 100%; min-height: 45px; border: 1px solid #cbd8ce; border-radius: 2px; padding: 10px 12px; color: var(--ink); background: #fff; }
    .field textarea { min-height: 120px; resize: vertical; }
    .form-actions { display: flex; align-items: center; gap: 14px; margin-top: 16px; }
    .form-note { color: var(--muted); font-size: 12px; }
    .affiliate { display: flex; align-items: center; justify-content: space-between; gap: 25px; padding: 27px 0; border-block: 1px solid var(--line); }
    .affiliate h3 { margin: 0 0 5px; font-size: 21px; }
    .affiliate p { margin: 0; color: var(--muted); }
    .site-footer { margin-top: 0; padding: 29px 0 22px; background: #e8efe9; color: #26382e; }
    .footer-row { display: flex; align-items: center; justify-content: space-between; gap: 22px; }
    .footer-brand { font-weight: 800; }
    .footer-links { display: flex; flex-wrap: wrap; gap: 8px 17px; }
    .footer-links a { color: #405649; font-size: 13px; text-decoration: none; }
    .footer-bottom { display: flex; justify-content: space-between; gap: 20px; margin-top: 19px; padding-top: 13px; border-top: 1px solid #cedbd1; color: #586a5e; font-size: 12px; }
    .float-contact { position: fixed; z-index: 6; right: 16px; bottom: 18px; display: grid; gap: 8px; }
    .float-contact a { display: grid; place-items: center; min-width: 46px; min-height: 46px; padding: 0 13px; color: #fff; background: var(--green-dark); border: 1px solid rgba(255,255,255,.3); text-decoration: none; font-size: 12px; box-shadow: 0 5px 15px rgba(18,56,40,.16); }
    .float-contact a:first-child { color: #193521; background: var(--lime); }
    .reveal { opacity: 0; transform: translateY(12px); transition: opacity .55s ease, transform .55s ease; }
    .reveal.is-visible { opacity: 1; transform: translateY(0); }
    @media (max-width: 1000px) {
      .nav-links { display: none; position: absolute; top: 76px; left: 0; right: 0; padding: 12px 20px 18px; background: var(--paper); border-bottom: 1px solid var(--line); box-shadow: 0 12px 18px rgba(20,45,30,.08); }
      .nav-links.is-open { display: grid; grid-template-columns: repeat(3, 1fr); }
      .nav-links a { padding: 10px; }
      .menu-toggle { display: inline-grid; place-items: center; }
      .nav-row { gap: 10px; }
      .hero-inner { gap: 28px; }
    }
    @media (max-width: 720px) {
      .container { width: min(var(--container), calc(100% - 30px)); }
      .nav-row { min-height: 68px; }
      .nav-links { top: 68px; }
      .nav-actions .button { display: none; }
      .hero { padding: 57px 0 35px; }
      .hero-inner, .intro-grid, .industry-layout, .network, .match-grid, .article-section, .form-layout { grid-template-columns: 1fr; }
      .hero-inner { gap: 30px; }
      h1 { font-size: 43px; }
      .hero-copy { font-size: 16px; }
      .hero-panel { max-width: 500px; }
      .metric-strip { grid-template-columns: 1fr 1fr; margin-top: 34px; }
      .metric { padding: 14px 8px 0 0; }
      .section { padding: 56px 0; }
      .section-heading { display: block; }
      .section-heading p:last-child { margin-top: 13px; }
      .service-grid { grid-template-columns: 1fr 1fr; }
      .process { grid-template-columns: 1fr 1fr; gap: 10px 18px; }
      .industry-list { gap: 0 16px; }
      .reviews { grid-template-columns: 1fr 1fr; }
      .faq-grid { grid-template-columns: 1fr; }
      .square-case { grid-template-columns: 1fr; }
      .square-case .media-frame { max-width: 230px; }
      .form-grid { grid-template-columns: 1fr; }
      .field-wide { grid-column: auto; }
      .footer-row, .footer-bottom, .affiliate { align-items: flex-start; flex-direction: column; }
      .float-contact { right: 10px; bottom: 10px; }
    }
    @media (max-width: 460px) {
      .brand span { font-size: 16px; }
      .nav-links.is-open { grid-template-columns: repeat(2, 1fr); }
      .hero-buttons { display: grid; grid-template-columns: 1fr; }
      .hero-buttons .button { width: 100%; }
      .service-grid, .reviews, .article-list { grid-template-columns: 1fr; }
      .process { grid-template-columns: 1fr; }
      .network-nodes { grid-template-columns: repeat(2, 1fr); }
      .rating-band { align-items: flex-start; flex-direction: column; gap: 6px; }
      .form-actions { align-items: flex-start; flex-direction: column; }
    }
    @media (prefers-reduced-motion: reduce) {
      *, *:before, *:after { scroll-behavior: auto !important; animation-duration: .01ms !important; transition-duration: .01ms !important; }
      .reveal { opacity: 1; transform: none; }
    }