:root {
      color-scheme: light;
      --ink: #29211f;
      --muted: #706561;
      --red: #c82925;
      --red-dark: #a91f1c;
      --coral: #f07856;
      --orange: #f5b64b;
      --cream: #fff9f5;
      --paper: #ffffff;
      --line: #eadbd3;
      --green: #236e58;
      --container: 1180px;
    }
    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; scroll-padding-top: 84px; }
    body {
      margin: 0;
      background: var(--cream);
      color: var(--ink);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
      line-height: 1.65;
    }
    a { color: inherit; text-decoration: none; }
    button, input, select, textarea { font: inherit; }
    button, a, input, select, textarea { -webkit-tap-highlight-color: transparent; }
    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(255,249,245,.96); border-bottom: 1px solid rgba(234,219,211,.85); backdrop-filter: blur(12px); }
    .nav-row { min-height: 72px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
    .brand { display: inline-flex; align-items: center; gap: 11px; flex: 0 0 auto; font-weight: 800; font-size: 18px; }
    .brand img { width: 42px; max-height: 42px; object-fit: contain; }
    .nav-links { display: flex; align-items: center; justify-content: flex-end; gap: 0; min-width: 0; }
    .nav-links a { color: #514642; padding: 10px 11px; font-size: 13px; white-space: nowrap; border-radius: 4px; transition: background .2s, color .2s; }
    .nav-links a:hover { background: #f8e6df; color: var(--red-dark); }
    .nav-links .nav-cta { color: #fff; background: var(--red); padding-inline: 16px; margin-left: 8px; }
    .nav-links .nav-cta:hover { background: var(--red-dark); color: #fff; }
    .menu-toggle { display: none; border: 1px solid var(--line); background: var(--paper); color: var(--ink); width: 42px; height: 42px; border-radius: 4px; cursor: pointer; }
    .menu-toggle span, .menu-toggle::before, .menu-toggle::after { content: ""; display: block; width: 18px; height: 2px; background: currentColor; margin: 4px auto; }
    .hero { position: relative; overflow: hidden; background: #fff1e9; border-bottom: 1px solid #f2d8ca; }
    .hero::before { content: ""; position: absolute; inset: 0; background: linear-gradient(115deg, transparent 48%, rgba(200,41,37,.055) 48%, rgba(200,41,37,.055) 49%, transparent 49%), linear-gradient(25deg, transparent 69%, rgba(240,120,86,.08) 69%, rgba(240,120,86,.08) 70%, transparent 70%); pointer-events: none; }
    .hero-inner { position: relative; padding: 70px 0 58px; }
    .hero-copy { max-width: 760px; }
    .eyebrow { display: inline-flex; align-items: center; gap: 9px; color: var(--red-dark); text-transform: uppercase; font-size: 12px; font-weight: 800; letter-spacing: 1px; }
    .eyebrow::before { content: ""; width: 25px; height: 2px; background: var(--coral); }
    h1 { max-width: 700px; margin: 16px 0 16px; font-size: clamp(38px, 6vw, 66px); line-height: 1.12; letter-spacing: 0; }
    .hero-copy p { max-width: 650px; margin: 0; color: #63534d; font-size: 17px; }
    .hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 27px; }
    .button { display: inline-flex; align-items: center; justify-content: center; min-height: 48px; padding: 11px 20px; border: 1px solid transparent; border-radius: 4px; font-weight: 750; transition: transform .2s, background .2s, box-shadow .2s; cursor: pointer; }
    .button:hover { transform: translateY(-2px); box-shadow: 0 8px 18px rgba(101,39,26,.16); }
    .button-primary { background: var(--red); color: #fff; }
    .button-primary:hover { background: var(--red-dark); }
    .button-outline { border-color: #cfa89a; color: #5a3029; background: rgba(255,255,255,.65); }
    .hero-proof { display: flex; flex-wrap: wrap; gap: 10px 22px; margin-top: 30px; color: #685952; font-size: 13px; }
    .hero-proof span::before { content: "✓"; color: var(--green); font-weight: 900; margin-right: 7px; }
    .hero-band { position: relative; padding: 17px 0; background: #bb2723; color: #fff; }
    .hero-band-inner { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 14px 28px; align-items: center; }
    .hero-band strong { font-size: 15px; }
    .hero-band span { color: #ffe4d8; font-size: 13px; }
    .metrics { display: grid; grid-template-columns: repeat(4, 1fr); border-left: 1px solid var(--line); border-bottom: 1px solid var(--line); }
    .metric { padding: 24px 22px; border-right: 1px solid var(--line); background: rgba(255,255,255,.55); }
    .metric strong { display: block; color: var(--red-dark); font-size: 24px; line-height: 1.2; }
    .metric span { display: block; margin-top: 7px; color: var(--muted); font-size: 13px; }
    .section { padding: 68px 0; }
    .section-tint { background: #fff2eb; border-block: 1px solid #f1ded4; }
    .section-heading { display: flex; justify-content: space-between; align-items: end; gap: 24px; margin-bottom: 30px; }
    .section-heading > div { max-width: 720px; }
    .section-kicker { margin: 0 0 7px; color: var(--red); font-size: 12px; font-weight: 800; letter-spacing: 1px; }
    h2 { margin: 0; font-size: clamp(27px, 4vw, 38px); line-height: 1.2; letter-spacing: 0; }
    .section-heading p { max-width: 450px; margin: 0; color: var(--muted); font-size: 14px; }
    .intro-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 38px; align-items: start; }
    .intro-copy { color: #514743; font-size: 16px; }
    .intro-copy p { margin: 0 0 15px; }
    .intro-points { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0 24px; padding: 0; margin: 22px 0 0; list-style: none; }
    .intro-points li { padding: 11px 0; border-bottom: 1px solid var(--line); font-size: 14px; }
    .intro-points li::before { content: "＋"; color: var(--red); font-weight: 800; margin-right: 8px; }
    .model-panel { padding: 23px; background: #fff; border-top: 3px solid var(--red); }
    .model-panel h3 { margin: 0 0 13px; font-size: 17px; }
    .tag-cloud { display: flex; flex-wrap: wrap; gap: 8px; }
    .tag-cloud span { padding: 5px 9px; border: 1px solid #eedbd2; color: #59413a; background: #fffaf7; font-size: 12px; }
    .service-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0 26px; border-top: 1px solid var(--line); }
    .service-item { min-height: 150px; padding: 22px 4px; border-bottom: 1px solid var(--line); transition: transform .2s, color .2s; }
    .service-item:hover { transform: translateY(-3px); }
    .service-item h3 { margin: 0 0 8px; color: #382b27; font-size: 17px; }
    .service-item p { margin: 0; color: var(--muted); font-size: 13px; }
    .service-index { color: var(--red); font-size: 11px; font-weight: 800; letter-spacing: 1px; }
    .workflow { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; counter-reset: steps; }
    .step { position: relative; padding: 21px 22px 20px 0; border-top: 2px solid #e6b9a8; counter-increment: steps; }
    .step::before { content: "0" counter(steps); display: block; margin-bottom: 14px; color: var(--red); font-size: 13px; font-weight: 800; }
    .step h3 { margin: 0 0 7px; font-size: 16px; }
    .step p { margin: 0; color: var(--muted); font-size: 13px; }
    .industry-list { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }
    .industry-list div { background: #fff; padding: 17px 16px; }
    .industry-list strong { display: block; font-size: 14px; }
    .industry-list span { display: block; margin-top: 4px; color: var(--muted); font-size: 12px; }
    .network-row { display: grid; grid-template-columns: repeat(3, 1fr); border-block: 1px solid var(--line); }
    .network-item { padding: 22px 24px 22px 0; }
    .network-item + .network-item { padding-left: 24px; border-left: 1px solid var(--line); }
    .network-item h3 { margin: 0 0 7px; font-size: 16px; }
    .network-item p { margin: 0; color: var(--muted); font-size: 13px; }
    .review-score { display: flex; flex-wrap: wrap; align-items: center; gap: 18px; padding: 20px 22px; margin-bottom: 19px; background: #fff0e8; border-left: 4px solid var(--red); }
    .review-score strong { color: var(--red-dark); font-size: 32px; line-height: 1; }
    .stars { color: #cf7824; letter-spacing: 2px; font-size: 18px; }
    .review-score span { color: #654e45; font-size: 13px; }
    .table-wrap { overflow-x: auto; border: 1px solid var(--line); background: #fff; }
    table { width: 100%; min-width: 680px; border-collapse: collapse; text-align: left; }
    th, td { padding: 13px 15px; border-bottom: 1px solid #eee3dd; font-size: 13px; vertical-align: top; }
    th { background: #f8e8e0; color: #4d322a; font-weight: 750; }
    td:first-child { font-weight: 700; }
    td:last-child { color: #365b4b; }
    .case-layout { display: grid; grid-template-columns: 1.25fr .75fr; gap: 34px; align-items: start; }
    .case-copy { padding: 24px 0; border-top: 2px solid var(--red); }
    .case-copy h3 { margin: 0 0 9px; font-size: 20px; }
    .case-copy p { margin: 0 0 14px; color: var(--muted); font-size: 14px; }
    .case-copy ul { margin: 0; padding-left: 19px; color: #514743; font-size: 13px; }
    .case-copy li + li { margin-top: 5px; }
    .case-media { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
    .case-media figure { margin: 0; padding: 9px; background: #fff; border: 1px solid var(--line); }
    .case-media figure:first-child { grid-column: 1 / -1; }
    .case-media img { display: block; width: 100%; aspect-ratio: 16 / 9; object-fit: contain; background: #fff7f2; }
    .case-media figcaption { padding-top: 7px; color: var(--muted); font-size: 11px; }
    .reviews { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
    .review { padding: 19px 0; border-top: 2px solid #e2a28a; }
    .review blockquote { margin: 0; color: #51433e; font-size: 14px; }
    .review cite { display: block; margin-top: 12px; color: var(--red-dark); font-size: 12px; font-style: normal; font-weight: 750; }
    .faq-list { border-top: 1px solid var(--line); }
    .faq-item { border-bottom: 1px solid var(--line); }
    .faq-item summary { position: relative; padding: 17px 38px 17px 0; cursor: pointer; font-weight: 700; list-style: none; }
    .faq-item summary::-webkit-details-marker { display: none; }
    .faq-item summary::after { content: "+"; position: absolute; right: 3px; top: 12px; color: var(--red); font-size: 23px; font-weight: 400; transition: transform .2s; }
    .faq-item[open] summary::after { transform: rotate(45deg); }
    .faq-item p { max-width: 850px; margin: 0; padding: 0 38px 17px 0; color: var(--muted); font-size: 14px; }
    .article-links { display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; }
    .article-link { padding: 15px 0; border-top: 1px solid #d9aaa0; }
    .article-link strong { display: block; font-size: 14px; }
    .article-link span { display: block; margin-top: 5px; color: var(--muted); font-size: 12px; }
    .article-shortcode { margin-top: 20px; padding-top: 17px; border-top: 1px solid var(--line); color: var(--muted); font-size: 13px; }
    .join-band { padding: 26px; background: #3a2824; color: #fff6ef; display: flex; align-items: center; justify-content: space-between; gap: 22px; }
    .join-band h3 { margin: 0 0 5px; font-size: 20px; }
    .join-band p { margin: 0; color: #e0c9be; font-size: 13px; }
    .join-band .button { background: var(--orange); color: #38261f; white-space: nowrap; }
    .contact-grid { display: grid; grid-template-columns: .78fr 1.22fr; gap: 50px; align-items: start; }
    .contact-info h3 { margin: 0 0 10px; font-size: 20px; }
    .contact-info p { margin: 0 0 16px; color: var(--muted); font-size: 14px; }
    .contact-lines { padding: 0; margin: 20px 0 0; list-style: none; }
    .contact-lines li { padding: 10px 0; border-bottom: 1px solid var(--line); font-size: 14px; }
    .contact-lines a { color: var(--red-dark); }
    .qr-wrap { width: 146px; margin-top: 20px; padding: 8px; background: #fff; border: 1px solid var(--line); }
    .qr-wrap img { display: block; width: 100%; aspect-ratio: 1; object-fit: contain; }
    .qr-wrap span { display: block; padding-top: 6px; text-align: center; color: var(--muted); font-size: 11px; }
    .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; }
    .field label { font-size: 13px; font-weight: 700; }
    .field input, .field select, .field textarea { width: 100%; border: 1px solid #d9c8bf; border-radius: 3px; padding: 11px 12px; background: #fff; color: var(--ink); outline: none; }
    .field input:focus, .field select:focus, .field textarea:focus { border-color: var(--red); box-shadow: 0 0 0 3px rgba(200,41,37,.1); }
    .field textarea { min-height: 120px; resize: vertical; }
    .form-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 14px; margin-top: 16px; }
    .form-note { color: var(--muted); font-size: 12px; }
    .site-footer { padding: 27px 0; background: #f4e7df; color: #382e2b; border-top: 1px solid #e5d4ca; }
    .footer-top { display: flex; justify-content: space-between; align-items: start; gap: 26px; }
    .footer-brand { font-weight: 800; font-size: 15px; }
    .footer-links { display: flex; flex-wrap: wrap; gap: 8px 18px; max-width: 740px; }
    .footer-links a { color: #574640; font-size: 12px; }
    .footer-links a:hover { color: var(--red-dark); text-decoration: underline; }
    .copyright { margin-top: 20px; padding-top: 14px; border-top: 1px solid #dfcec4; color: #70615a; font-size: 11px; }
    .float-tools { position: fixed; z-index: 15; right: 18px; bottom: 18px; display: grid; gap: 8px; }
    .float-tools a, .float-tools button { display: grid; place-items: center; width: 46px; height: 46px; border: 1px solid #e8c8bb; border-radius: 50%; background: #fff; color: var(--red-dark); box-shadow: 0 5px 16px rgba(61,38,29,.12); font-size: 11px; font-weight: 800; cursor: pointer; }
    .reveal { opacity: 0; transform: translateY(12px); transition: opacity .55s ease, transform .55s ease; }
    .reveal.is-visible { opacity: 1; transform: translateY(0); }
    @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: 980px) {
      .nav-links a { padding-inline: 8px; font-size: 12px; }
      .nav-links .nav-cta { padding-inline: 11px; }
      .service-grid { grid-template-columns: repeat(2, 1fr); }
      .industry-list { grid-template-columns: repeat(2, 1fr); }
      .article-links { grid-template-columns: repeat(3, 1fr); }
    }
    @media (max-width: 760px) {
      .container { width: min(var(--container), calc(100% - 32px)); }
      .nav-row { min-height: 64px; }
      .brand { font-size: 16px; }
      .brand img { width: 36px; max-height: 36px; }
      .menu-toggle { display: block; flex: 0 0 auto; }
      .nav-links { display: none; position: absolute; left: 0; right: 0; top: 64px; padding: 10px 16px 16px; background: var(--cream); border-bottom: 1px solid var(--line); box-shadow: 0 9px 14px rgba(52,32,25,.08); align-items: stretch; }
      .nav-links.is-open { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 2px; }
      .nav-links a { padding: 10px; font-size: 14px; }
      .nav-links .nav-cta { margin: 0; text-align: center; }
      .hero-inner { padding: 54px 0 42px; }
      h1 { font-size: 42px; }
      .hero-copy p { font-size: 15px; }
      .metrics { grid-template-columns: repeat(2, 1fr); }
      .metric { padding: 18px 15px; }
      .section { padding: 52px 0; }
      .section-heading { display: block; }
      .section-heading p { margin-top: 12px; }
      .intro-grid, .case-layout, .contact-grid { grid-template-columns: 1fr; gap: 25px; }
      .workflow { grid-template-columns: repeat(2, 1fr); gap: 10px 20px; }
      .network-row { grid-template-columns: 1fr; }
      .network-item, .network-item + .network-item { padding: 18px 0; border-left: 0; }
      .network-item + .network-item { border-top: 1px solid var(--line); }
      .reviews { grid-template-columns: repeat(2, 1fr); gap: 8px 20px; }
      .article-links { grid-template-columns: repeat(2, 1fr); }
      .join-band { align-items: flex-start; flex-direction: column; }
      .footer-top { flex-direction: column; }
    }
    @media (max-width: 480px) {
      .hero-actions .button { flex: 1 1 100%; }
      .hero-proof { display: grid; gap: 8px; }
      .service-grid { grid-template-columns: 1fr; }
      .service-item { min-height: 0; }
      .intro-points { grid-template-columns: 1fr; }
      .industry-list { grid-template-columns: 1fr 1fr; }
      .reviews { grid-template-columns: 1fr; }
      .form-grid { grid-template-columns: 1fr; }
      .field-wide { grid-column: auto; }
      .article-links { grid-template-columns: 1fr 1fr; gap: 10px; }
      .float-tools { right: 10px; bottom: 10px; }
      .float-tools a, .float-tools button { width: 42px; height: 42px; }
    }