:root {
      color-scheme: light;
      --ink: #182c2b;
      --muted: #5d706e;
      --paper: #f7faf8;
      --white: #fff;
      --line: #dce8e2;
      --green: #087f68;
      --green-dark: #075d50;
      --mint: #dff4eb;
      --lime: #d5f06b;
      --coral: #ff775e;
      --blue: #dceeff;
      --shadow: 0 16px 40px rgba(23, 62, 53, .08);
      --container: 1160px;
    }
    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; scroll-padding-top: 84px; }
    body {
      margin: 0;
      background: var(--paper);
      color: var(--ink);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      line-height: 1.65;
    }
    a { color: inherit; text-decoration: none; }
    button, input, select, textarea { font: inherit; }
    button, a { -webkit-tap-highlight-color: transparent; }
    img { max-width: 100%; }
    .container { width: min(var(--container), calc(100% - 40px)); margin-inline: auto; }
    .site-header { position: sticky; z-index: 20; top: 0; border-bottom: 1px solid rgba(220,232,226,.85); background: rgba(247,250,248,.94); backdrop-filter: blur(14px); }
    .nav { min-height: 72px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
    .brand { display: flex; align-items: center; gap: 10px; flex: 0 0 auto; font-weight: 800; font-size: 18px; }
    .ai-page-logo { display: block; width: 38px; height: 38px; object-fit: contain; }
    .nav-links { display: flex; align-items: center; justify-content: flex-end; gap: 0; flex-wrap: wrap; color: #38514d; font-size: 13px; }
    .nav-links a { padding: 9px 10px; border-radius: 6px; transition: background .2s, color .2s; }
    .nav-links a:hover { background: var(--mint); color: var(--green-dark); }
    .nav-cta, .button { display: inline-flex; align-items: center; justify-content: center; gap: 8px; border: 0; border-radius: 6px; padding: 12px 18px; background: var(--green); color: #fff; font-weight: 700; transition: transform .2s, background .2s, box-shadow .2s; cursor: pointer; }
    .nav-cta { white-space: nowrap; padding: 10px 15px; font-size: 13px; }
    .button:hover, .nav-cta:hover { transform: translateY(-2px); background: var(--green-dark); box-shadow: 0 9px 20px rgba(8,127,104,.18); }
    .button.secondary { background: #fff; color: var(--green-dark); border: 1px solid var(--line); }
    .button.secondary:hover { background: var(--mint); }
    .menu-toggle { display: none; width: 42px; height: 42px; border: 1px solid var(--line); border-radius: 6px; background: #fff; color: var(--ink); cursor: pointer; }
    .hero { position: relative; overflow: hidden; padding: 68px 0 45px; background: linear-gradient(135deg, #effaf4 0%, #f9fbf6 58%, #eaf5ff 100%); }
    .hero::before { content: ""; position: absolute; inset: 0; pointer-events: none; opacity: .42; background-image: linear-gradient(rgba(8,127,104,.045) 1px, transparent 1px), linear-gradient(90deg, rgba(8,127,104,.045) 1px, transparent 1px); background-size: 34px 34px; mask-image: linear-gradient(to bottom, #000, transparent 85%); }
    .hero-inner { position: relative; display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(280px, .85fr); align-items: center; gap: 56px; }
    .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: 25px; height: 2px; background: var(--coral); }
    h1 { max-width: 700px; margin: 17px 0 16px; font-size: clamp(38px, 5vw, 62px); line-height: 1.12; letter-spacing: 0; }
    .hero-copy { max-width: 630px; margin: 0; color: #526864; font-size: 17px; }
    .hero-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 27px; }
    .hero-note { margin-top: 17px; color: #60736e; font-size: 13px; }
    .hero-visual { position: relative; padding: 26px 0; }
    .visual-panel { position: relative; overflow: hidden; padding: 24px; border: 1px solid rgba(8,127,104,.14); border-radius: 10px; background: rgba(255,255,255,.88); box-shadow: var(--shadow); animation: rise-in .7s both; }
    .visual-panel::after { content: ""; position: absolute; right: -42px; top: -50px; width: 150px; height: 150px; border: 1px solid rgba(255,119,94,.32); border-radius: 50%; box-shadow: 0 0 0 18px rgba(255,119,94,.06), 0 0 0 38px rgba(8,127,104,.045); }
    .visual-head { display: flex; justify-content: space-between; align-items: center; gap: 12px; padding-bottom: 17px; border-bottom: 1px solid var(--line); }
    .visual-head strong { font-size: 15px; }
    .live-mark { color: var(--green); font-size: 12px; font-weight: 700; }
    .live-mark::before { content: ""; display: inline-block; width: 7px; height: 7px; margin-right: 7px; border-radius: 50%; background: #70c769; }
    .model-cloud { display: flex; flex-wrap: wrap; gap: 8px; margin: 19px 0; }
    .model-cloud span, .tag { padding: 6px 10px; border: 1px solid #dcebe3; border-radius: 5px; background: #f3faf6; color: #345b51; font-size: 12px; }
    .visual-flow { display: grid; grid-template-columns: 1fr auto 1fr auto 1fr; align-items: center; gap: 9px; margin-top: 20px; }
    .flow-node { padding: 12px 8px; border-radius: 6px; background: #eef8f3; text-align: center; color: #28564a; font-size: 12px; font-weight: 700; }
    .flow-arrow { color: var(--coral); font-weight: 800; }
    .metric-strip { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; margin-top: 46px; border-top: 1px solid rgba(8,127,104,.18); border-bottom: 1px solid rgba(8,127,104,.18); }
    .metric { padding: 19px 22px; border-right: 1px solid rgba(8,127,104,.16); }
    .metric:last-child { border-right: 0; }
    .metric strong { display: block; color: var(--green-dark); font-size: 19px; }
    .metric span { color: var(--muted); font-size: 12px; }
    section { padding: 68px 0; }
    .section-head { display: flex; align-items: end; justify-content: space-between; gap: 24px; margin-bottom: 29px; }
    .section-head > div { max-width: 680px; }
    .section-kicker { margin: 0 0 7px; color: var(--green); font-size: 12px; font-weight: 800; text-transform: uppercase; }
    h2 { margin: 0; font-size: clamp(27px, 3vw, 38px); line-height: 1.22; letter-spacing: 0; }
    .section-intro { margin: 10px 0 0; color: var(--muted); }
    .text-link { color: var(--green-dark); font-weight: 700; white-space: nowrap; }
    .intro-band { background: #fff; }
    .intro-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 46px; align-items: start; }
    .intro-copy { color: #526864; }
    .intro-copy p { margin: 0 0 14px; }
    .capability-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px 24px; margin: 0; padding: 0; list-style: none; }
    .capability-list li { position: relative; padding: 12px 12px 12px 34px; border-bottom: 1px solid var(--line); color: #36524c; }
    .capability-list li::before { content: "✓"; position: absolute; left: 8px; color: var(--green); font-weight: 800; }
    .services { background: #eff7f3; }
    .service-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
    .service-item { min-height: 170px; padding: 21px; border: 1px solid #dce9e2; border-radius: 7px; background: #fff; transition: transform .22s, box-shadow .22s, border-color .22s; }
    .service-item:hover { transform: translateY(-4px); border-color: #acd7c4; box-shadow: 0 14px 28px rgba(23,62,53,.08); }
    .service-index { color: var(--coral); font-size: 12px; font-weight: 800; }
    .service-item h3 { margin: 8px 0 6px; font-size: 17px; }
    .service-item p { margin: 0; color: var(--muted); font-size: 13px; }
    .workshop { background: #fff; }
    .workshop-layout { display: grid; grid-template-columns: minmax(0,1fr) 300px; gap: 36px; align-items: start; }
    .tool-groups { display: grid; grid-template-columns: repeat(2, 1fr); gap: 25px 34px; }
    .tool-group { border-top: 2px solid var(--green); padding-top: 13px; }
    .tool-group h3 { margin: 0 0 10px; font-size: 16px; }
    .tool-group p { margin: 0; color: var(--muted); font-size: 13px; }
    .tool-group .tag { display: inline-block; margin: 3px 2px 3px 0; }
    .side-note { padding: 22px; background: #f0f7ff; border-left: 3px solid #528bc0; }
    .side-note h3 { margin: 0 0 9px; font-size: 17px; }
    .side-note p { margin: 0 0 15px; color: #526777; font-size: 13px; }
    .solutions { background: linear-gradient(180deg, #f7faf8, #edf5f0); }
    .solution-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
    .solution { padding: 18px 20px; border-top: 1px solid #c8ddd2; background: rgba(255,255,255,.62); }
    .solution strong { display: block; margin-bottom: 5px; }
    .solution span { color: var(--muted); font-size: 13px; }
    .network { background: #fff; }
    .network-panel { display: grid; grid-template-columns: 1.1fr .9fr; gap: 32px; align-items: center; padding: 28px; border: 1px solid var(--line); border-radius: 8px; background: linear-gradient(115deg, #f2faf5, #f3f8ff); }
    .network-panel h3 { margin: 0 0 8px; font-size: 21px; }
    .network-panel p { margin: 0; color: var(--muted); }
    .network-points { display: grid; grid-template-columns: repeat(2, 1fr); gap: 11px; }
    .network-points span { padding: 11px 12px; border: 1px solid #d9e9e0; border-radius: 5px; background: #fff; color: #36524c; font-size: 13px; }
    .process { background: #eaf4ef; }
    .steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; }
    .step { position: relative; padding: 0 23px 0 0; }
    .step:not(:last-child)::after { content: ""; position: absolute; left: 44px; right: 15px; top: 20px; height: 1px; background: #b7d6c6; }
    .step-number { position: relative; z-index: 1; display: grid; place-items: center; width: 42px; height: 42px; border: 1px solid #9dc9b4; border-radius: 50%; background: #fff; color: var(--green-dark); font-weight: 800; }
    .step h3 { margin: 15px 0 5px; font-size: 16px; }
    .step p { margin: 0; color: var(--muted); font-size: 13px; }
    .cases { background: #fff; }
    .case-grid { display: grid; grid-template-columns: 1.2fr .8fr; gap: 16px; }
    .case-feature { overflow: hidden; border: 1px solid var(--line); border-radius: 8px; background: #f4faf6; }
    .case-feature img { display: block; width: 100%; height: auto; aspect-ratio: 16 / 8; object-fit: cover; }
    .case-caption { padding: 16px 19px; }
    .case-caption h3 { margin: 0 0 4px; font-size: 17px; }
    .case-caption p { margin: 0; color: var(--muted); font-size: 13px; }
    .case-stack { display: grid; gap: 16px; }
    .case-mini { display: grid; grid-template-columns: 100px 1fr; gap: 15px; align-items: center; padding: 14px; border: 1px solid var(--line); border-radius: 7px; }
    .case-mini img { display: block; width: 100%; aspect-ratio: 1; object-fit: cover; border-radius: 5px; }
    .case-mini h3 { margin: 0 0 4px; font-size: 15px; }
    .case-mini p { margin: 0; color: var(--muted); font-size: 12px; }
    .reviews { background: #eff7f3; }
    .review-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 13px; }
    .review { padding: 20px; border-bottom: 3px solid var(--lime); background: #fff; }
    .review p { margin: 0 0 15px; color: #425a54; font-size: 14px; }
    .review strong { display: block; font-size: 13px; }
    .review span { color: var(--muted); font-size: 12px; }
    .comparison { background: #fff; }
    .rating-banner { display: flex; align-items: center; gap: 20px; margin-bottom: 22px; padding: 18px 22px; border-radius: 7px; background: #e9f7ef; }
    .rating-score { color: var(--green-dark); font-size: 32px; font-weight: 850; line-height: 1; }
    .stars { color: #e5a424; letter-spacing: 0; font-size: 19px; }
    .rating-banner p { margin: 3px 0 0; color: var(--muted); font-size: 13px; }
    .table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 7px; }
    table { width: 100%; border-collapse: collapse; min-width: 680px; background: #fff; }
    th, td { padding: 13px 15px; border-bottom: 1px solid var(--line); text-align: left; font-size: 13px; }
    th { background: #f0f7f3; color: #31574c; }
    tr:last-child td { border-bottom: 0; }
    td:first-child { font-weight: 700; }
    .comparison-note { margin: 10px 0 0; color: var(--muted); font-size: 12px; }
    .match { background: #f1f8f4; }
    .match-layout { display: grid; grid-template-columns: .8fr 1.2fr; gap: 40px; align-items: start; }
    .match-copy p { color: var(--muted); }
    .match-copy .button { margin-top: 8px; }
    .price { background: #fff; }
    .price-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 36px; align-items: center; }
    .price-box { padding: 21px 23px; border-left: 3px solid var(--coral); background: #fff6f2; }
    .price-box h3 { margin: 0 0 7px; font-size: 17px; }
    .price-box p { margin: 0; color: #665b56; font-size: 13px; }
    .price-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 15px; }
    .price-tags span { padding: 7px 10px; border: 1px solid #e4e9e5; border-radius: 4px; background: #f8faf8; font-size: 12px; }
    .faq { background: #edf5f0; }
    .faq-list { display: grid; grid-template-columns: 1fr 1fr; gap: 10px 16px; }
    details { border-bottom: 1px solid #cddfd4; background: rgba(255,255,255,.62); }
    summary { position: relative; padding: 15px 42px 15px 15px; cursor: pointer; list-style: none; font-weight: 700; font-size: 14px; }
    summary::-webkit-details-marker { display: none; }
    summary::after { content: "+"; position: absolute; right: 15px; top: 12px; color: var(--green); font-size: 21px; font-weight: 400; }
    details[open] summary::after { content: "−"; }
    details p { margin: 0; padding: 0 15px 15px; color: var(--muted); font-size: 13px; }
    .knowledge { background: #fff; }
    .knowledge-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; }
    .knowledge-copy p { color: var(--muted); }
    .article-list { display: grid; gap: 0; }
    .article-list a { display: flex; justify-content: space-between; gap: 16px; padding: 13px 0; border-bottom: 1px solid var(--line); font-size: 14px; }
    .article-list a span:last-child { color: var(--green); font-size: 12px; white-space: nowrap; }
    .contact { background: #eaf4ef; }
    .contact-grid { display: grid; grid-template-columns: .85fr 1.15fr; gap: 38px; align-items: start; }
    .contact-info { display: grid; gap: 12px; }
    .contact-item { padding: 14px 0; border-bottom: 1px solid #cbded3; }
    .contact-item strong { display: block; font-size: 14px; }
    .contact-item span, .contact-item a { color: var(--muted); font-size: 13px; }
    .qr { width: 132px; margin-top: 7px; padding: 6px; border: 1px solid var(--line); background: #fff; }
    .qr img { display: block; width: 100%; height: auto; }
    .contact-form { display: grid; grid-template-columns: 1fr 1fr; gap: 13px; padding: 23px; border: 1px solid #d5e4da; border-radius: 7px; background: #fff; }
    .field { display: grid; gap: 6px; }
    .field.full { grid-column: 1 / -1; }
    .field label { color: #38524b; font-size: 13px; font-weight: 700; }
    .field input, .field select, .field textarea { width: 100%; min-width: 0; padding: 11px 12px; border: 1px solid #d4e0d9; border-radius: 5px; outline: none; background: #fbfdfb; color: var(--ink); }
    .field input:focus, .field select:focus, .field textarea:focus { border-color: var(--green); box-shadow: 0 0 0 3px rgba(8,127,104,.1); }
    .field textarea { min-height: 112px; resize: vertical; }
    .contact-form .button { justify-self: start; }
    .footer { padding: 27px 0; background: #183b34; color: #f3fbf6; }
    .footer-main { display: flex; align-items: center; justify-content: space-between; gap: 22px; }
    .footer-brand { font-weight: 800; }
    .footer p { margin: 4px 0 0; color: #c5d8cf; font-size: 12px; }
    .footer-links { display: flex; flex-wrap: wrap; gap: 7px 17px; color: #e0eee7; font-size: 12px; }
    .footer-bottom { display: flex; justify-content: space-between; gap: 18px; margin-top: 18px; padding-top: 14px; border-top: 1px solid rgba(255,255,255,.17); color: #c5d8cf; font-size: 11px; }
    .floating-contact { position: fixed; z-index: 15; right: 18px; bottom: 18px; display: grid; gap: 8px; }
    .floating-contact a { display: grid; place-items: center; min-width: 48px; min-height: 48px; padding: 0 12px; border: 1px solid #cfe2d8; border-radius: 6px; background: #fff; color: var(--green-dark); box-shadow: 0 7px 20px rgba(22,59,49,.13); font-size: 12px; font-weight: 800; transition: transform .2s; }
    .floating-contact a:hover { transform: translateY(-3px); }
    .reveal { opacity: 0; transform: translateY(14px); transition: opacity .55s ease, transform .55s ease; }
    .reveal.visible { opacity: 1; transform: translateY(0); }
    @keyframes rise-in { from { opacity: 0; transform: translateY(12px); } to { 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: 980px) {
      .nav { gap: 12px; }
      .menu-toggle { display: inline-grid; place-items: center; flex: 0 0 auto; }
      .nav-cta { margin-left: auto; }
      .nav-links { display: none; position: absolute; top: 71px; left: 0; right: 0; padding: 13px 20px 18px; border-bottom: 1px solid var(--line); background: var(--paper); box-shadow: 0 12px 20px rgba(23,62,53,.08); }
      .nav-links.open { display: grid; grid-template-columns: repeat(3, 1fr); }
      .nav-links a { padding: 10px; }
      .hero-inner { gap: 28px; }
      .service-grid { grid-template-columns: repeat(2, 1fr); }
    }
    @media (max-width: 700px) {
      .container { width: min(var(--container), calc(100% - 32px)); }
      .nav { min-height: 64px; }
      .nav-links { top: 63px; }
      .brand { font-size: 16px; }
      .ai-page-logo { width: 33px; height: 33px; }
      .nav-cta { padding: 9px 11px; font-size: 12px; }
      .hero { padding: 48px 0 31px; }
      .hero-inner { grid-template-columns: 1fr; gap: 18px; }
      h1 { max-width: 540px; font-size: 42px; }
      .hero-copy { font-size: 15px; }
      .hero-visual { padding: 8px 0 0; }
      .visual-panel { padding: 19px; }
      .metric-strip { grid-template-columns: repeat(2, 1fr); margin-top: 30px; }
      .metric { padding: 13px 12px; }
      .metric:nth-child(2) { border-right: 0; }
      .metric:nth-child(-n+2) { border-bottom: 1px solid rgba(8,127,104,.16); }
      section { padding: 51px 0; }
      .section-head { display: block; margin-bottom: 23px; }
      .section-head .text-link { display: inline-block; margin-top: 12px; }
      .intro-grid, .workshop-layout, .network-panel, .case-grid, .match-layout, .price-layout, .knowledge-grid, .contact-grid { grid-template-columns: 1fr; gap: 23px; }
      .service-grid { grid-template-columns: 1fr 1fr; gap: 10px; }
      .service-item { min-height: 0; padding: 16px; }
      .service-item h3 { font-size: 15px; }
      .service-item p { font-size: 12px; }
      .tool-groups { gap: 20px; }
      .solution-row { grid-template-columns: 1fr 1fr; }
      .steps { grid-template-columns: 1fr 1fr; gap: 24px 10px; }
      .step { padding-right: 8px; }
      .step:not(:last-child)::after { display: none; }
      .review-grid { grid-template-columns: 1fr 1fr; }
      .faq-list { grid-template-columns: 1fr; }
      .contact-form { padding: 17px; }
      .footer-main, .footer-bottom { align-items: flex-start; flex-direction: column; }
      .floating-contact { right: 10px; bottom: 10px; }
      .floating-contact a { min-width: 43px; min-height: 43px; }
    }
    @media (max-width: 430px) {
      .nav-links.open { grid-template-columns: repeat(2, 1fr); }
      .hero-actions .button { width: 100%; }
      .visual-flow { gap: 5px; }
      .flow-node { padding: 10px 4px; font-size: 11px; }
      .tool-groups, .solution-row, .review-grid { grid-template-columns: 1fr; }
      .network-points { grid-template-columns: 1fr; }
      .case-mini { grid-template-columns: 82px 1fr; }
      .contact-form { grid-template-columns: 1fr; }
      .field.full { grid-column: auto; }
      .rating-banner { align-items: flex-start; }
    }