:root {
      color-scheme: light;
      --ink: #25231f;
      --muted: #68635d;
      --paper: #fffaf5;
      --white: #ffffff;
      --orange: #ed5a24;
      --orange-dark: #bd3f16;
      --orange-pale: #fff0e6;
      --line: #eaded4;
      --green: #23745a;
      --container: 1180px;
    }
    * { 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; }
    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;
      z-index: 20;
      top: 0;
      background: rgba(255, 250, 245, .97);
      border-bottom: 1px solid var(--line);
      backdrop-filter: blur(12px);
    }
    .header-inner {
      min-height: 72px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 20px;
    }
    .brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; flex: 0 0 auto; }
    .brand img { width: 38px; max-height: 38px; object-fit: contain; }
    .brand strong { font-size: 17px; letter-spacing: 0; }
    .nav-links {
      display: flex;
      align-items: center;
      justify-content: flex-end;
      gap: 0;
      flex-wrap: wrap;
    }
    .nav-links a {
      padding: 8px 9px;
      color: #48433e;
      font-size: 13px;
      text-decoration: none;
      border-radius: 4px;
      transition: background .2s ease, color .2s ease;
    }
    .nav-links a:hover, .nav-links a:focus-visible { color: var(--orange-dark); background: var(--orange-pale); }
    .nav-links .nav-cta { margin-left: 8px; padding-inline: 14px; background: var(--orange); color: white; }
    .menu-toggle {
      display: none;
      border: 1px solid var(--line);
      border-radius: 4px;
      background: white;
      color: var(--ink);
      padding: 8px 11px;
      cursor: pointer;
    }
    .hero {
      position: relative;
      overflow: hidden;
      background: #fff2e9;
      border-bottom: 1px solid #f0d4c2;
    }
    .hero::before {
      content: "";
      position: absolute;
      inset: 0 0 auto;
      height: 5px;
      background: linear-gradient(90deg, #b73813, #ed5a24 55%, #f7aa4b);
    }
    .hero-inner {
      min-height: 540px;
      padding-block: 76px 56px;
      display: grid;
      grid-template-columns: minmax(0, 1.25fr) minmax(260px, .75fr);
      align-items: center;
      gap: 44px;
    }
    .eyebrow {
      margin: 0 0 16px;
      color: var(--orange-dark);
      font-size: 12px;
      font-weight: 800;
      letter-spacing: 1.5px;
      text-transform: uppercase;
    }
    h1 { max-width: 720px; margin: 0; font-size: clamp(38px, 5vw, 64px); line-height: 1.12; letter-spacing: 0; }
    .hero-copy { max-width: 620px; margin: 22px 0 0; color: #51473f; font-size: 17px; }
    .hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
    .button {
      display: inline-flex;
      min-height: 46px;
      align-items: center;
      justify-content: center;
      padding: 10px 19px;
      border: 1px solid var(--orange);
      border-radius: 4px;
      background: var(--orange);
      color: #fff;
      font-weight: 700;
      text-decoration: none;
      transition: transform .18s ease, background .18s ease, box-shadow .18s ease;
    }
    .button:hover { transform: translateY(-2px); background: var(--orange-dark); box-shadow: 0 8px 18px rgba(189,63,22,.18); }
    .button.secondary { background: transparent; color: var(--orange-dark); }
    .button.secondary:hover { background: #fff; }
    .hero-note { margin: 18px 0 0; color: var(--muted); font-size: 13px; }
    .hero-panel {
      padding: 25px;
      border: 1px solid #efc9b2;
      border-radius: 8px;
      background: rgba(255,255,255,.72);
      box-shadow: 14px 14px 0 #f7d4bf;
      animation: rise-in .7s ease both;
    }
    .hero-panel h2 { margin: 0 0 18px; font-size: 17px; }
    .hero-flow { display: grid; gap: 10px; }
    .flow-line { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 12px 14px; background: white; border: 1px solid #f1e4db; border-radius: 4px; }
    .flow-line strong { font-size: 14px; }
    .flow-line span { color: var(--orange-dark); font-size: 12px; font-weight: 700; }
    .hero-panel small { display: block; margin-top: 17px; color: var(--muted); }
    .metrics { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; padding-block: 22px; border-bottom: 1px solid var(--line); }
    .metric { padding: 4px 22px; border-right: 1px solid var(--line); }
    .metric:first-child { padding-left: 0; }
    .metric:last-child { border-right: 0; }
    .metric strong { display: block; color: var(--orange-dark); font-size: 22px; }
    .metric span { color: var(--muted); font-size: 13px; }
    .section { padding-block: 76px; }
    .section.soft { background: #fff3eb; border-block: 1px solid #f1ded1; }
    .section.white { background: var(--white); border-block: 1px solid var(--line); }
    .section-heading { max-width: 710px; margin-bottom: 30px; }
    .section-heading .eyebrow { margin-bottom: 8px; }
    h2 { margin: 0; font-size: 32px; line-height: 1.25; letter-spacing: 0; }
    .section-heading p { margin: 12px 0 0; color: var(--muted); }
    h3 { margin: 0; font-size: 18px; line-height: 1.4; }
    .intro-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 36px; align-items: start; }
    .intro-copy p { margin: 0 0 16px; color: #4f4a45; }
    .principles { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
    .principle { padding: 16px; border-left: 3px solid var(--orange); background: #fff; }
    .principle strong { display: block; margin-bottom: 4px; }
    .principle span { color: var(--muted); font-size: 13px; }
    .service-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
    .service-item { min-height: 152px; padding: 20px; border: 1px solid var(--line); border-top: 3px solid var(--orange); background: white; transition: transform .2s ease, box-shadow .2s ease; }
    .service-item:hover, .review:hover { transform: translateY(-3px); box-shadow: 0 12px 24px rgba(82,52,32,.08); }
    .service-item p { margin: 9px 0 0; color: var(--muted); font-size: 14px; }
    .service-item .tag { display: inline-block; margin-top: 13px; color: var(--orange-dark); font-size: 12px; font-weight: 700; }
    .workflow { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; counter-reset: steps; }
    .workflow article { position: relative; padding: 18px 18px 18px 22px; border-top: 1px solid #e8c5ae; counter-increment: steps; }
    .workflow article::before { content: "0" counter(steps); display: block; margin-bottom: 12px; color: var(--orange); font-size: 13px; font-weight: 800; }
    .workflow p { margin: 8px 0 0; color: var(--muted); font-size: 14px; }
    .industry-list { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; }
    .industry-list span { padding: 12px 14px; border: 1px solid var(--line); background: rgba(255,255,255,.7); font-size: 14px; }
    .model-cloud { display: flex; flex-wrap: wrap; gap: 8px; }
    .model-cloud span { padding: 7px 11px; border: 1px solid #edc2a7; border-radius: 3px; background: #fff; color: #65483a; font-size: 13px; }
    .split-band { display: grid; grid-template-columns: .8fr 1.2fr; gap: 36px; align-items: start; }
    .split-band p { color: var(--muted); }
    .media-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
    .media-item { margin: 0; overflow: hidden; border: 1px solid var(--line); background: white; }
    .media-item img { display: block; width: 100%; aspect-ratio: 16 / 10; object-fit: contain; background: #fff; }
    .media-item figcaption { padding: 13px 15px; font-size: 14px; font-weight: 700; }
    .comparison-wrap { overflow-x: auto; border: 1px solid var(--line); background: white; }
    table { width: 100%; min-width: 720px; border-collapse: collapse; text-align: left; }
    th, td { padding: 14px 16px; border-bottom: 1px solid var(--line); vertical-align: top; }
    th { background: #fff0e5; color: #59331f; font-size: 14px; }
    td { font-size: 14px; }
    tbody tr:last-child td { border-bottom: 0; }
    .rating { display: flex; flex-wrap: wrap; align-items: center; gap: 14px; margin-bottom: 20px; }
    .rating strong { color: var(--orange-dark); font-size: 30px; }
    .stars { color: #d94e1f; letter-spacing: 2px; }
    .rating span { color: var(--muted); }
    .reviews { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
    .review { padding: 20px; border: 1px solid var(--line); background: #fff; transition: transform .2s ease, box-shadow .2s ease; }
    .review p { margin: 0 0 16px; color: #4e4944; font-size: 14px; }
    .review strong { display: block; font-size: 13px; }
    .review span { color: var(--muted); font-size: 12px; }
    .faq-list { display: grid; gap: 8px; }
    .faq-list details { border-bottom: 1px solid var(--line); background: white; }
    .faq-list summary { padding: 16px 18px; cursor: pointer; font-weight: 700; list-style: none; }
    .faq-list summary::-webkit-details-marker { display: none; }
    .faq-list summary::after { content: "+"; float: right; color: var(--orange-dark); font-size: 20px; line-height: 1; }
    .faq-list details[open] summary::after { content: "−"; }
    .faq-list details p { margin: 0; padding: 0 18px 16px; color: var(--muted); font-size: 14px; }
    .article-links { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0 28px; border-top: 1px solid var(--line); }
    .article-links a { padding: 14px 0; border-bottom: 1px solid var(--line); text-decoration: none; }
    .article-links a:hover { color: var(--orange-dark); }
    .article-links small { display: block; color: var(--muted); }
    .form-layout { display: grid; grid-template-columns: .78fr 1.22fr; gap: 42px; align-items: start; }
    .contact-info p { color: var(--muted); }
    .contact-links { display: grid; gap: 7px; margin-top: 18px; }
    .contact-links a { color: var(--orange-dark); text-decoration-thickness: 1px; text-underline-offset: 3px; }
    .contact-qr { width: 150px; margin-top: 18px; border: 1px solid var(--line); padding: 6px; background: white; }
    .contact-form { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
    .field { display: grid; gap: 6px; }
    .field.full { grid-column: 1 / -1; }
    .field label { font-size: 13px; font-weight: 700; }
    .field input, .field select, .field textarea { width: 100%; padding: 11px 12px; border: 1px solid #d9cbc0; border-radius: 3px; background: white; color: var(--ink); }
    .field textarea { min-height: 120px; resize: vertical; }
    .contact-form .button { justify-self: start; cursor: pointer; }
    .links-row { display: flex; flex-wrap: wrap; gap: 8px 18px; }
    .links-row a { color: #5a4d43; font-size: 13px; text-decoration: none; }
    .links-row a:hover { color: var(--orange-dark); text-decoration: underline; }
    .site-footer { padding-block: 26px; background: #fff4ec; color: #35302b; border-top: 1px solid var(--line); }
    .footer-inner { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
    .footer-inner p { margin: 0; font-size: 13px; }
    .footer-inner a { color: #653d29; }
    .float-contact { position: fixed; z-index: 15; right: 18px; bottom: 18px; display: grid; gap: 8px; }
    .float-contact a { display: inline-flex; min-height: 42px; align-items: center; justify-content: center; padding: 9px 14px; border: 1px solid var(--orange-dark); border-radius: 4px; background: var(--orange); color: white; text-decoration: none; font-size: 13px; font-weight: 700; box-shadow: 0 5px 16px rgba(93,43,18,.18); }
    .reveal { opacity: 0; transform: translateY(14px); transition: opacity .55s ease, transform .55s ease; }
    .reveal.is-visible { opacity: 1; transform: translateY(0); }
    @keyframes rise-in { from { opacity: 0; transform: translateY(10px); } 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: 1000px) {
      .header-inner { flex-wrap: wrap; padding-block: 12px; }
      .menu-toggle { display: inline-flex; }
      .nav-links { display: none; width: 100%; justify-content: flex-start; padding-bottom: 8px; }
      .nav-links.is-open { display: flex; }
      .nav-links a { padding: 7px 9px; }
      .hero-inner { grid-template-columns: 1fr .8fr; gap: 28px; }
      .industry-list { grid-template-columns: repeat(3, 1fr); }
    }
    @media (max-width: 700px) {
      .container { width: min(var(--container), calc(100% - 32px)); }
      .hero-inner { min-height: 0; grid-template-columns: 1fr; padding-block: 54px 38px; gap: 32px; }
      h1 { font-size: 42px; }
      .hero-copy { font-size: 16px; }
      .metrics { grid-template-columns: repeat(2, 1fr); row-gap: 18px; }
      .metric:nth-child(2) { border-right: 0; }
      .metric:nth-child(3) { padding-left: 0; }
      .section { padding-block: 54px; }
      h2 { font-size: 27px; }
      .intro-grid, .split-band, .form-layout { grid-template-columns: 1fr; gap: 22px; }
      .service-grid, .reviews { grid-template-columns: repeat(2, 1fr); }
      .workflow { grid-template-columns: repeat(2, 1fr); row-gap: 10px; }
      .industry-list { grid-template-columns: repeat(2, 1fr); }
      .media-grid { grid-template-columns: 1fr; }
      .article-links { grid-template-columns: 1fr; }
      .footer-inner { align-items: flex-start; flex-direction: column; }
      .float-contact { right: 10px; bottom: 10px; }
    }
    @media (max-width: 460px) {
      .service-grid, .reviews, .principles, .contact-form { grid-template-columns: 1fr; }
      .field.full { grid-column: auto; }
      .nav-links a { font-size: 12px; padding: 6px 7px; }
      .hero-panel { box-shadow: 7px 7px 0 #f7d4bf; }
    }