:root {
      color-scheme: light;
      --ink: #27231f;
      --muted: #70675f;
      --paper: #fffaf5;
      --white: #ffffff;
      --orange: #ed5b2a;
      --orange-dark: #b83b17;
      --peach: #fff0e6;
      --line: #eadfd5;
      --green: #276b57;
      --container: 1160px;
    }
    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; scroll-padding-top: 90px; }
    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; }
    img { max-width: 100%; height: auto; }
    button, input, select, textarea { font: inherit; }
    button, a { -webkit-tap-highlight-color: transparent; }
    .container { width: min(var(--container), calc(100% - 40px)); margin-inline: auto; }
    .site-header {
      position: sticky; top: 0; z-index: 20; background: rgba(255,250,245,.96);
      border-bottom: 1px solid rgba(234,223,213,.86); backdrop-filter: blur(12px);
    }
    .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; }
    .brand img { display: block; width: 42px; max-height: 42px; object-fit: contain; }
    .brand-name { font-size: 18px; font-weight: 800; letter-spacing: 0; }
    .nav-links { display: flex; align-items: center; justify-content: flex-end; gap: 0; flex-wrap: wrap; }
    .nav-links a { padding: 10px 11px; text-decoration: none; color: #554b43; font-size: 13px; transition: color .2s ease; }
    .nav-links a:hover { color: var(--orange-dark); }
    .nav-links .nav-cta { margin-left: 9px; color: white; background: var(--orange); padding: 10px 16px; border-radius: 4px; font-weight: 700; }
    .menu-toggle { display: none; border: 1px solid var(--line); color: var(--ink); background: white; border-radius: 4px; padding: 8px 12px; cursor: pointer; }
    .hero {
      position: relative; overflow: hidden; background: #fff3e8;
      border-bottom: 1px solid #f2dfd0;
    }
    .hero::before {
      content: ""; position: absolute; width: 390px; height: 390px; right: -85px; top: -150px;
      border: 1px solid rgba(237,91,42,.24); border-radius: 50%;
      box-shadow: 0 0 0 38px rgba(237,91,42,.035), 0 0 0 78px rgba(237,91,42,.025);
    }
    .hero::after { content: ""; position: absolute; width: 9px; height: 9px; right: 18%; top: 30%; background: var(--orange); transform: rotate(45deg); }
    .hero-inner { position: relative; z-index: 1; padding-block: 76px 64px; max-width: 900px; }
    .eyebrow { display: inline-flex; align-items: center; gap: 9px; color: var(--orange-dark); font-size: 12px; font-weight: 800; letter-spacing: 0; text-transform: uppercase; }
    .eyebrow::before { content: ""; width: 25px; height: 2px; background: var(--orange); }
    h1 { max-width: 790px; margin: 18px 0 16px; font-size: clamp(38px, 6vw, 66px); line-height: 1.12; letter-spacing: 0; }
    .hero-copy { max-width: 660px; margin: 0; font-size: 17px; color: #5e5147; }
    .hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
    .button { display: inline-flex; align-items: center; justify-content: center; min-height: 46px; padding: 11px 19px; border: 1px solid var(--orange); border-radius: 4px; background: var(--orange); color: white; text-decoration: none; font-weight: 750; transition: transform .18s ease, box-shadow .18s ease, background .18s ease; }
    .button:hover { background: var(--orange-dark); border-color: var(--orange-dark); box-shadow: 0 8px 18px rgba(184,59,23,.17); transform: translateY(-2px); }
    .button.secondary { color: var(--ink); background: transparent; border-color: #c9b6a8; }
    .button.secondary:hover { background: white; border-color: var(--orange); }
    .hero-note { margin-top: 17px; font-size: 13px; color: var(--muted); }
    .hero-ribbon { display: flex; flex-wrap: wrap; gap: 9px 22px; margin-top: 33px; color: #56483f; font-size: 13px; }
    .hero-ribbon span::before { content: "✓"; color: var(--green); font-weight: 900; margin-right: 7px; }
    .metrics { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: #e9d8ca; border-block: 1px solid #e9d8ca; }
    .metric { padding: 22px 18px; background: #fffaf5; text-align: center; }
    .metric strong { display: block; color: var(--orange-dark); font-size: 23px; line-height: 1.2; }
    .metric span { display: block; margin-top: 6px; color: var(--muted); font-size: 12px; }
    section.content-section { padding-block: 76px; }
    .section-heading { max-width: 720px; margin-bottom: 31px; }
    .section-heading h2 { margin: 8px 0 10px; font-size: clamp(27px, 4vw, 38px); line-height: 1.2; letter-spacing: 0; }
    .section-heading p { margin: 0; color: var(--muted); }
    .intro-layout { display: grid; grid-template-columns: 1.15fr .85fr; gap: 50px; align-items: start; }
    .intro-text p { margin: 0 0 15px; color: #574e47; }
    .intro-points { border-top: 2px solid var(--orange); padding-top: 16px; display: grid; gap: 13px; }
    .intro-point { display: grid; grid-template-columns: 34px 1fr; gap: 12px; align-items: start; }
    .intro-point b { color: var(--orange-dark); font-size: 13px; }
    .intro-point span { color: #574e47; font-size: 14px; }
    .model-band { padding: 19px 0; background: #f8eee5; border-block: 1px solid #ebddd0; }
    .model-band p { margin: 0; color: #62564d; font-size: 13px; }
    .model-band strong { color: var(--ink); }
    .service-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0 26px; border-top: 1px solid var(--line); }
    .service-item { padding: 23px 0 21px; border-bottom: 1px solid var(--line); }
    .service-item h3 { margin: 0 0 7px; font-size: 17px; }
    .service-item p { margin: 0; color: var(--muted); font-size: 13px; }
    .service-tag { display: inline-block; margin-top: 11px; color: var(--orange-dark); font-size: 11px; font-weight: 750; }
    .workflow { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; counter-reset: step; }
    .workflow article { position: relative; padding-top: 17px; border-top: 2px solid #edc2a9; }
    .workflow article::before { counter-increment: step; content: "0" counter(step); color: var(--orange); font-size: 12px; font-weight: 850; }
    .workflow h3 { margin: 8px 0 6px; font-size: 17px; }
    .workflow p { margin: 0; color: var(--muted); font-size: 13px; }
    .solution-band { background: #2e3732; color: white; }
    .solution-band .section-heading p { color: #d8d7cf; }
    .solution-band .eyebrow { color: #ffc29f; }
    .solution-band .eyebrow::before { background: #ffc29f; }
    .solution-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: #58615b; border: 1px solid #58615b; }
    .solution-item { background: #2e3732; padding: 22px; }
    .solution-item h3 { margin: 0 0 7px; font-size: 16px; color: #fff5ed; }
    .solution-item p { margin: 0; color: #d2d5d0; font-size: 13px; }
    .network-list { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 23px; }
    .network-list span { padding: 6px 10px; border: 1px solid #66716b; color: #f3e9df; font-size: 12px; }
    .case-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 26px; align-items: start; }
    .case { border-bottom: 1px solid var(--line); padding-bottom: 19px; }
    .case h3 { margin: 0 0 7px; font-size: 19px; }
    .case p { margin: 0 0 15px; color: var(--muted); font-size: 14px; }
    .media-frame { overflow: hidden; background: #f2e8df; border: 1px solid var(--line); }
    .media-frame img { display: block; width: 100%; height: auto; }
    .case-square { max-width: 420px; }
    .comparison { display: grid; grid-template-columns: .75fr 1.25fr; gap: 35px; align-items: start; }
    .score-panel { padding: 26px; border-left: 4px solid var(--orange); background: #fff0e6; }
    .score-panel strong { display: block; color: var(--orange-dark); font-size: 46px; line-height: 1.1; }
    .stars { color: #cc4b21; font-size: 22px; letter-spacing: 0; }
    .score-panel p { margin: 9px 0 0; color: #61554b; font-size: 13px; }
    .table-wrap { overflow-x: auto; border: 1px solid var(--line); background: white; }
    table { width: 100%; border-collapse: collapse; min-width: 620px; font-size: 13px; }
    th, td { padding: 13px 14px; border-bottom: 1px solid #eee5dd; text-align: left; vertical-align: top; }
    th { color: #463d36; background: #f8eee5; }
    td:last-child { color: var(--green); font-weight: 650; }
    .price-strip { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 25px; padding: 25px 0; border-block: 1px solid var(--line); }
    .price-strip h3 { margin: 0 0 5px; font-size: 18px; }
    .price-strip p { margin: 0; color: var(--muted); font-size: 13px; }
    .price-label { padding: 9px 13px; border: 1px solid #e5a47f; color: var(--orange-dark); font-weight: 750; white-space: nowrap; }
    .testimonials { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0 24px; border-top: 1px solid var(--line); }
    .quote { padding: 22px 0; border-bottom: 1px solid var(--line); }
    .quote p { margin: 0 0 15px; color: #514940; font-size: 14px; }
    .quote cite { color: var(--muted); font-size: 12px; font-style: normal; }
    .quote cite strong { color: var(--ink); }
    .faq-list { border-top: 1px solid var(--line); }
    .faq-list details { border-bottom: 1px solid var(--line); }
    .faq-list summary { position: relative; padding: 17px 38px 17px 0; cursor: pointer; list-style: none; font-weight: 700; }
    .faq-list summary::-webkit-details-marker { display: none; }
    .faq-list summary::after { content: "+"; position: absolute; right: 5px; top: 12px; color: var(--orange-dark); font-size: 22px; font-weight: 400; }
    .faq-list details[open] summary::after { content: "−"; }
    .faq-list details p { margin: -3px 38px 17px 0; color: var(--muted); font-size: 14px; }
    .article-list { display: grid; grid-template-columns: repeat(5, 1fr); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
    .article-list a { min-height: 104px; padding: 17px 15px; border-right: 1px solid var(--line); text-decoration: none; font-size: 14px; font-weight: 700; transition: background .2s ease; }
    .article-list a:last-child { border-right: 0; }
    .article-list a:hover { background: #fff0e6; }
    .article-list span { display: block; margin-top: 9px; color: var(--orange-dark); font-size: 11px; font-weight: 650; }
    .glossary { display: flex; flex-wrap: wrap; gap: 8px; }
    .glossary span { padding: 7px 11px; background: #f2e8df; color: #574a40; font-size: 12px; }
    .contact-layout { display: grid; grid-template-columns: .8fr 1.2fr; gap: 44px; align-items: start; }
    .contact-info p { color: var(--muted); font-size: 14px; }
    .contact-info a { color: var(--orange-dark); text-decoration-thickness: 1px; text-underline-offset: 3px; }
    .contact-info dl { margin: 20px 0 0; }
    .contact-info dt { margin-top: 13px; color: var(--muted); font-size: 12px; }
    .contact-info dd { margin: 2px 0 0; font-weight: 700; }
    .qr { width: 154px; margin-top: 19px; padding: 8px; background: white; border: 1px solid var(--line); }
    .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.full { grid-column: 1 / -1; }
    .field label { font-size: 12px; font-weight: 750; }
    .field input, .field select, .field textarea { width: 100%; padding: 11px 12px; border: 1px solid #d9cec4; border-radius: 3px; background: white; color: var(--ink); outline: none; }
    .field input:focus, .field select:focus, .field textarea:focus { border-color: var(--orange); box-shadow: 0 0 0 3px rgba(237,91,42,.11); }
    .field textarea { min-height: 112px; resize: vertical; }
    .form-submit { margin-top: 16px; }
    .partners { padding-block: 28px; background: #f4e9df; }
    .partners-inner { display: flex; align-items: center; flex-wrap: wrap; gap: 11px 21px; }
    .partners strong { margin-right: 5px; font-size: 13px; }
    .partners a { color: #5c4e43; font-size: 12px; text-decoration-thickness: 1px; text-underline-offset: 3px; }
    .site-footer { background: #fffaf5; color: #423a34; border-top: 1px solid var(--line); }
    .footer-row { display: flex; justify-content: space-between; align-items: center; gap: 20px; padding-block: 21px; font-size: 12px; }
    .footer-row p { margin: 0; }
    .footer-links { display: flex; flex-wrap: wrap; gap: 14px; }
    .footer-links a { color: #564c44; text-decoration: none; }
    .join-band { padding-block: 50px; background: #fff0e6; border-top: 1px solid #efddce; }
    .join-inner { display: flex; justify-content: space-between; align-items: center; gap: 25px; }
    .join-inner h2 { margin: 0 0 5px; font-size: 25px; }
    .join-inner p { margin: 0; color: var(--muted); font-size: 14px; }
    .floating { position: fixed; z-index: 15; right: 18px; bottom: 18px; display: grid; gap: 8px; }
    .floating a, .floating button { min-width: 48px; min-height: 44px; padding: 9px 12px; border: 1px solid #e6c5b2; border-radius: 4px; background: white; color: var(--ink); text-decoration: none; text-align: center; font-size: 12px; cursor: pointer; box-shadow: 0 4px 15px rgba(49,34,23,.09); }
    .floating a:hover, .floating button:hover { color: var(--orange-dark); border-color: var(--orange); }
    .reveal { opacity: 0; transform: translateY(14px); 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: 900px) {
      .menu-toggle { display: inline-flex; align-items: center; gap: 7px; }
      .nav-row { position: relative; }
      .nav-links { display: none; position: absolute; top: calc(100% - 1px); left: 0; right: 0; padding: 9px 12px 14px; background: var(--paper); border: 1px solid var(--line); border-top: 0; align-items: stretch; flex-direction: column; }
      .nav-links.is-open { display: flex; }
      .nav-links a { padding: 10px 8px; }
      .nav-links .nav-cta { margin: 6px 0 0; text-align: center; }
      .service-grid { grid-template-columns: repeat(2, 1fr); }
      .solution-grid { grid-template-columns: repeat(2, 1fr); }
      .article-list { grid-template-columns: repeat(3, 1fr); }
      .article-list a:nth-child(3) { border-right: 0; }
      .article-list a:nth-child(n+4) { border-top: 1px solid var(--line); }
    }
    @media (max-width: 650px) {
      .container { width: min(var(--container), calc(100% - 30px)); }
      .nav-row { min-height: 66px; }
      .hero-inner { padding-block: 55px 45px; }
      .hero-copy { font-size: 15px; }
      .metrics { grid-template-columns: repeat(2, 1fr); }
      .metric { padding: 18px 10px; }
      section.content-section { padding-block: 55px; }
      .intro-layout, .comparison, .contact-layout, .case-grid { grid-template-columns: 1fr; gap: 25px; }
      .service-grid, .solution-grid { grid-template-columns: 1fr; }
      .workflow { grid-template-columns: repeat(2, 1fr); gap: 23px 17px; }
      .testimonials { grid-template-columns: 1fr; }
      .article-list { grid-template-columns: 1fr 1fr; }
      .article-list a { border-right: 1px solid var(--line); }
      .article-list a:nth-child(2n) { border-right: 0; }
      .article-list a:nth-child(3) { border-right: 1px solid var(--line); }
      .article-list a:nth-child(n+3) { border-top: 1px solid var(--line); }
      .price-strip { grid-template-columns: 1fr; }
      .price-label { justify-self: start; }
      .form-grid { grid-template-columns: 1fr; }
      .field.full { grid-column: auto; }
      .join-inner { align-items: flex-start; flex-direction: column; }
      .footer-row { align-items: flex-start; flex-direction: column; }
      .floating { right: 10px; bottom: 10px; }
    }