:root {
      color-scheme: light;
      --ink: #211d2b;
      --muted: #696575;
      --purple: #6936c5;
      --purple-dark: #4d238f;
      --lavender: #eee7fb;
      --line: #e7e2ee;
      --paper: #fbfaff;
      --white: #fff;
      --mint: #e5f5ef;
      --coral: #fff0e9;
      --width: 1160px;
    }
    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; scroll-padding-top: 84px; }
    body {
      margin: 0;
      color: var(--ink);
      background: var(--paper);
      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; }
    img { display: block; max-width: 100%; height: auto; }
    .container { width: min(var(--width), calc(100% - 40px)); margin-inline: auto; }
    .site-header {
      position: sticky;
      z-index: 20;
      top: 0;
      border-bottom: 1px solid rgba(231,226,238,.9);
      background: rgba(251,250,255,.94);
      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: 10px; flex: 0 0 auto; font-weight: 750; }
    .brand img { width: 38px; height: 38px; object-fit: contain; }
    .nav-links { display: flex; align-items: center; justify-content: flex-end; gap: 0; flex-wrap: wrap; }
    .nav-links a { padding: 8px 9px; color: #514b5e; font-size: 13px; transition: color .2s ease; }
    .nav-links a:hover { color: var(--purple); }
    .nav-cta, .button {
      display: inline-flex; justify-content: center; align-items: center; gap: 8px;
      border: 1px solid transparent; border-radius: 6px; padding: 11px 17px;
      background: var(--purple); color: #fff; font-weight: 700;
      transition: transform .2s ease, background .2s ease, box-shadow .2s ease;
    }
    .nav-cta { flex: 0 0 auto; padding: 9px 13px; font-size: 13px; }
    .button:hover, .nav-cta:hover { transform: translateY(-2px); background: var(--purple-dark); box-shadow: 0 8px 20px rgba(91,45,160,.2); }
    .button.secondary { color: var(--purple-dark); background: #fff; border-color: #d8c9ef; }
    .button.secondary:hover { background: var(--lavender); }
    .menu-toggle { display: none; width: 42px; height: 42px; border: 1px solid var(--line); border-radius: 6px; background: #fff; color: var(--ink); }
    .hero {
      position: relative; overflow: hidden; padding: 68px 0 54px;
      background: linear-gradient(135deg, #f4efff 0%, #fbfaff 58%, #f4f7ff 100%);
      border-bottom: 1px solid #e9e2f3;
    }
    .hero::before {
      position: absolute; content: ""; width: 420px; height: 420px; right: -100px; top: -190px;
      border: 1px solid rgba(105,54,197,.14); border-radius: 50%;
      box-shadow: 0 0 0 38px rgba(105,54,197,.035), 0 0 0 78px rgba(105,54,197,.025);
      pointer-events: none;
    }
    .hero-content { position: relative; max-width: 760px; }
    .eyebrow { margin: 0 0 14px; color: var(--purple); font-size: 13px; font-weight: 750; letter-spacing: .08em; }
    h1 { max-width: 740px; margin: 0; font-size: clamp(38px, 6vw, 66px); line-height: 1.12; letter-spacing: 0; }
    .hero-copy { max-width: 660px; margin: 21px 0 25px; color: #5f596b; font-size: 17px; }
    .hero-actions { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
    .hero-note { margin: 19px 0 0; color: #716b7d; font-size: 13px; }
    .metric-strip { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; margin-top: 44px; border-top: 1px solid #ddd4ed; }
    .metric { padding: 20px 18px 0 0; }
    .metric strong { display: block; color: var(--purple-dark); font-size: 23px; line-height: 1.25; }
    .metric span { color: var(--muted); font-size: 13px; }
    section { padding: 72px 0; }
    section.band { background: #f2eef9; border-block: 1px solid #e6dff0; }
    .section-head { display: flex; justify-content: space-between; align-items: end; gap: 30px; margin-bottom: 30px; }
    .section-head > div { max-width: 690px; }
    .section-kicker { margin: 0 0 8px; color: var(--purple); font-size: 12px; font-weight: 750; letter-spacing: .1em; text-transform: uppercase; }
    h2 { margin: 0; font-size: 31px; line-height: 1.25; letter-spacing: 0; }
    .section-intro { margin: 12px 0 0; color: var(--muted); max-width: 680px; }
    h3 { margin: 0 0 8px; font-size: 18px; line-height: 1.4; }
    .intro-layout { display: grid; grid-template-columns: 1.15fr .85fr; gap: 54px; align-items: start; }
    .intro-copy p { color: var(--muted); margin: 0 0 14px; }
    .principles { border-left: 2px solid #c8b2e8; padding-left: 24px; }
    .principle { padding: 0 0 18px; }
    .principle:last-child { padding-bottom: 0; }
    .principle strong { display: block; margin-bottom: 3px; }
    .principle span { color: var(--muted); font-size: 14px; }
    .service-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
    .service-item { padding: 19px; border: 1px solid var(--line); border-radius: 6px; background: #fff; transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease; }
    .service-item:hover { transform: translateY(-3px); border-color: #cdbce7; box-shadow: 0 10px 25px rgba(53,37,77,.07); }
    .service-item p { margin: 0; color: var(--muted); font-size: 14px; }
    .service-index { color: var(--purple); font-size: 12px; font-weight: 750; }
    .capability-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 42px; align-items: center; }
    .capability-list { display: grid; grid-template-columns: 1fr 1fr; gap: 18px 24px; }
    .capability-list article { border-top: 1px solid #d9cfea; padding-top: 13px; }
    .capability-list p { margin: 0; color: var(--muted); font-size: 14px; }
    .model-panel { padding: 23px; border-radius: 6px; color: #fff; background: #322447; }
    .model-panel h3 { color: #fff; }
    .model-panel p { margin: 8px 0 17px; color: #e2d9ed; font-size: 14px; }
    .tag-cloud { display: flex; flex-wrap: wrap; gap: 8px; }
    .tag-cloud span { border: 1px solid #756287; border-radius: 4px; padding: 5px 9px; color: #f6f1fb; font-size: 12px; }
    .steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; counter-reset: step; }
    .step { position: relative; padding: 4px 20px 0 0; }
    .step::before { counter-increment: step; content: "0" counter(step); display: block; margin-bottom: 16px; color: var(--purple); font-size: 13px; font-weight: 800; }
    .step::after { position: absolute; content: ""; top: 11px; left: 35px; right: 20px; height: 1px; background: #d7cde4; }
    .step:last-child::after { display: none; }
    .step p { margin: 0; color: var(--muted); font-size: 14px; }
    .industry-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
    .industry { padding: 16px; border-left: 2px solid var(--purple); background: #fff; }
    .industry strong { display: block; margin-bottom: 4px; }
    .industry span { color: var(--muted); font-size: 13px; }
    .network-row { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 30px; }
    .network-row article { border-top: 2px solid var(--purple); padding-top: 16px; }
    .network-row p { margin: 0; color: var(--muted); font-size: 14px; }
    .media-grid { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 18px; }
    .media-card { overflow: hidden; border: 1px solid var(--line); border-radius: 6px; background: #fff; }
    .media-card .image-wrap { aspect-ratio: 16 / 10; overflow: hidden; background: #eeeaf4; }
    .media-card.square .image-wrap { aspect-ratio: 1 / 1; }
    .media-card img { width: 100%; height: 100%; object-fit: cover; }
    .media-caption { padding: 14px 16px; color: #514b5e; font-size: 14px; }
    .comparison { overflow-x: auto; border: 1px solid var(--line); border-radius: 6px; background: #fff; }
    table { width: 100%; border-collapse: collapse; min-width: 720px; text-align: left; }
    th, td { padding: 14px 16px; border-bottom: 1px solid #eeeaf2; vertical-align: top; }
    th { color: #40384d; background: #f3eff9; font-size: 13px; }
    td { color: #5e5868; font-size: 14px; }
    tr:last-child td { border-bottom: 0; }
    .score-row { display: flex; align-items: center; gap: 22px; margin: 0 0 23px; padding: 20px 22px; border-radius: 6px; color: #fff; background: var(--purple-dark); }
    .score { font-size: 33px; font-weight: 800; line-height: 1; }
    .stars { color: #ffd76d; letter-spacing: 0; }
    .score-row p { margin: 0; color: #eee7f8; font-size: 13px; }
    .match-layout { display: grid; grid-template-columns: .8fr 1.2fr; gap: 42px; align-items: start; }
    .match-options { display: grid; gap: 0; }
    .match-options div { padding: 13px 0; border-bottom: 1px solid var(--line); }
    .match-options strong { display: block; }
    .match-options span { color: var(--muted); font-size: 13px; }
    .article-links { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0 28px; }
    .article-links a { display: flex; justify-content: space-between; gap: 15px; padding: 13px 0; border-bottom: 1px solid var(--line); color: #51475f; }
    .article-links a:hover { color: var(--purple); }
    .article-links span { color: var(--muted); font-size: 12px; white-space: nowrap; }
    .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; font-weight: 700; list-style: none; }
    .faq-list summary::-webkit-details-marker { display: none; }
    .faq-list summary::after { position: absolute; right: 4px; content: "+"; color: var(--purple); font-size: 22px; top: 12px; }
    .faq-list details[open] summary::after { content: "−"; }
    .faq-list details p { max-width: 850px; margin: -2px 0 17px; color: var(--muted); font-size: 14px; }
    .reviews { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
    .review { padding: 18px; border: 1px solid var(--line); border-radius: 6px; background: #fff; }
    .review blockquote { margin: 0 0 15px; color: #504a5b; font-size: 14px; }
    .review cite { color: var(--purple-dark); font-size: 13px; font-style: normal; font-weight: 700; }
    .contact-band { padding: 45px 0; background: #eee7f8; border-block: 1px solid #ddd2ed; }
    .contact-inner { display: flex; justify-content: space-between; align-items: center; gap: 24px; }
    .contact-inner p { margin: 7px 0 0; color: var(--muted); }
    .contact-options { display: flex; gap: 11px; flex-wrap: wrap; }
    .contact-layout { display: grid; grid-template-columns: 1.1fr .9fr; gap: 42px; align-items: start; }
    .form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
    .field { display: grid; gap: 6px; }
    .field.full { grid-column: 1 / -1; }
    .field label { color: #4d4658; font-size: 13px; font-weight: 650; }
    .field input, .field select, .field textarea { width: 100%; border: 1px solid #d9d3e2; border-radius: 5px; padding: 11px 12px; color: var(--ink); background: #fff; outline: none; }
    .field input:focus, .field select:focus, .field textarea:focus { border-color: var(--purple); box-shadow: 0 0 0 3px rgba(105,54,197,.1); }
    .field textarea { min-height: 112px; resize: vertical; }
    .contact-details { display: grid; gap: 18px; }
    .contact-details p { margin: 4px 0 0; color: var(--muted); }
    .qr-box { width: 156px; padding: 8px; border: 1px solid var(--line); background: #fff; }
    .footer { padding: 28px 0; color: #3f3949; background: #f0edf5; border-top: 1px solid #e0dbe7; }
    .footer-row { display: flex; justify-content: space-between; align-items: start; gap: 26px; }
    .footer p { margin: 6px 0 0; color: #625c6b; font-size: 13px; }
    .footer-links { display: flex; justify-content: flex-end; flex-wrap: wrap; gap: 7px 16px; max-width: 610px; }
    .footer-links a { color: #51475f; font-size: 13px; }
    .footer-links a:hover { color: var(--purple); }
    .floating-contact { position: fixed; z-index: 15; right: 18px; bottom: 20px; display: grid; gap: 8px; }
    .floating-contact a { display: grid; place-items: center; width: 48px; height: 48px; border-radius: 50%; color: #fff; background: var(--purple); box-shadow: 0 5px 17px rgba(48,29,75,.22); font-size: 13px; font-weight: 700; }
    .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) {
      html { scroll-behavior: auto; }
      *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
      .reveal { opacity: 1; transform: none; }
    }
    @media (max-width: 980px) {
      .nav-row { position: relative; }
      .menu-toggle { display: inline-grid; place-items: center; margin-left: auto; }
      .nav-cta { margin-left: 0; }
      .nav-links { display: none; position: absolute; left: 0; right: 0; top: 71px; padding: 12px; border: 1px solid var(--line); background: #fff; box-shadow: 0 12px 24px rgba(35,26,48,.1); justify-content: flex-start; }
      .nav-links.is-open { display: grid; grid-template-columns: repeat(3, 1fr); }
      .nav-links a { padding: 10px; }
      .service-grid { grid-template-columns: repeat(2, 1fr); }
      .industry-grid { grid-template-columns: repeat(2, 1fr); }
      .reviews { grid-template-columns: repeat(2, 1fr); }
    }
    @media (max-width: 680px) {
      .container { width: min(var(--width), calc(100% - 32px)); }
      .nav-row { min-height: 64px; gap: 10px; }
      .nav-links { top: 63px; }
      .nav-links.is-open { grid-template-columns: repeat(2, 1fr); }
      .nav-cta { padding: 8px 10px; font-size: 12px; }
      .brand img { width: 32px; height: 32px; }
      .hero { padding: 52px 0 38px; }
      .hero-copy { font-size: 15px; }
      .metric-strip { grid-template-columns: repeat(2, 1fr); row-gap: 18px; margin-top: 34px; }
      .metric { padding-top: 14px; }
      section { padding: 52px 0; }
      .section-head { display: block; margin-bottom: 22px; }
      h2 { font-size: 27px; }
      .intro-layout, .capability-layout, .match-layout, .contact-layout { grid-template-columns: 1fr; gap: 26px; }
      .service-grid { grid-template-columns: 1fr; }
      .capability-list { gap: 15px; }
      .steps { grid-template-columns: 1fr 1fr; gap: 25px 16px; }
      .step::after { display: none; }
      .industry-grid { grid-template-columns: 1fr 1fr; gap: 9px; }
      .industry { padding: 13px; }
      .network-row { grid-template-columns: 1fr; gap: 20px; }
      .media-grid { grid-template-columns: 1fr; }
      .article-links { grid-template-columns: 1fr; }
      .reviews { grid-template-columns: 1fr; }
      .contact-inner, .footer-row { align-items: flex-start; flex-direction: column; }
      .form-grid { grid-template-columns: 1fr; }
      .field.full { grid-column: auto; }
      .footer-links { justify-content: flex-start; }
      .score-row { align-items: flex-start; flex-direction: column; gap: 10px; }
    }