:root {
      color-scheme: light;
      --ink: #172334;
      --muted: #617184;
      --paper: #f8fbff;
      --white: #ffffff;
      --line: #dce6ee;
      --blue: #1769d2;
      --blue-dark: #104e9f;
      --mint: #dff7e9;
      --lime: #d9f35b;
      --coral: #ff765f;
      --teal: #087f83;
      --shadow: 0 14px 40px rgba(25, 58, 91, .08);
      --container: 1160px;
    }
    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    body {
      margin: 0;
      color: var(--ink);
      background: var(--paper);
      font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans SC", "Microsoft YaHei", sans-serif;
      line-height: 1.65;
    }
    a { color: inherit; }
    button, input, select, textarea { font: inherit; }
    .container { width: min(var(--container), calc(100% - 40px)); margin-inline: auto; }
    .site-header { position: sticky; top: 0; z-index: 20; background: rgba(255,255,255,.94); border-bottom: 1px solid rgba(220,230,238,.9); backdrop-filter: blur(12px); }
    .header-inner { min-height: 74px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
    .brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; font-weight: 800; white-space: nowrap; }
    .brand img { width: 38px; height: 38px; object-fit: contain; }
    .brand span { font-size: 17px; }
    .nav-wrap { display: flex; align-items: center; gap: 22px; }
    .nav-links { display: flex; align-items: center; gap: 0; }
    .nav-links a { padding: 10px 11px; color: #425268; text-decoration: none; font-size: 13px; font-weight: 650; white-space: nowrap; transition: color .2s ease; }
    .nav-links a:hover { color: var(--blue); }
    .button { display: inline-flex; align-items: center; justify-content: center; min-height: 46px; padding: 0 19px; border: 1px solid transparent; border-radius: 7px; background: var(--blue); color: white; text-decoration: none; font-size: 14px; font-weight: 750; cursor: pointer; transition: transform .2s ease, box-shadow .2s ease, background .2s ease; }
    .button:hover { transform: translateY(-2px); background: var(--blue-dark); box-shadow: 0 9px 22px rgba(23,105,210,.2); }
    .button.secondary { background: white; border-color: #b9d4ef; color: var(--blue-dark); }
    .button.secondary:hover { background: #eef7ff; }
    .menu-toggle { display: none; width: 42px; height: 42px; border: 1px solid var(--line); border-radius: 6px; background: white; color: var(--ink); cursor: pointer; }
    .menu-toggle span, .menu-toggle::before, .menu-toggle::after { display: block; width: 18px; height: 2px; margin: 4px auto; background: currentColor; content: ""; }
    .hero { position: relative; overflow: hidden; padding: 78px 0 58px; background: linear-gradient(120deg,#eff8ff 0%,#f8fbff 54%,#effbf4 100%); border-bottom: 1px solid #e3edf2; }
    .hero::before { position: absolute; inset: 0 0 auto; height: 7px; background: linear-gradient(90deg,var(--blue) 0 32%,var(--lime) 32% 57%,#38c9af 57% 78%,var(--coral) 78%); content: ""; }
    .hero-grid { display: grid; grid-template-columns: minmax(0,1.25fr) minmax(270px,.75fr); gap: 50px; align-items: center; }
    .eyebrow { display: inline-flex; align-items: center; gap: 9px; color: #1657a2; font-size: 12px; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
    .eyebrow::before { width: 24px; height: 3px; background: var(--coral); content: ""; }
    h1 { max-width: 700px; margin: 17px 0 18px; font-size: clamp(38px, 5vw, 62px); line-height: 1.13; letter-spacing: 0; }
    .hero-copy { max-width: 640px; margin: 0; color: #52657a; font-size: 17px; }
    .hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
    .hero-note { margin-top: 18px; color: #647588; font-size: 13px; }
    .hero-note strong { color: #17734b; }
    .hero-art { position: relative; display: grid; gap: 12px; padding: 24px; border: 1px solid #d4e5ee; border-radius: 10px; background: rgba(255,255,255,.76); box-shadow: var(--shadow); animation: float-in .7s ease both; }
    .hero-art::after { position: absolute; right: -12px; top: -12px; width: 48px; height: 48px; border-radius: 50%; background: var(--lime); content: ""; z-index: -1; }
    .console-top { display: flex; align-items: center; justify-content: space-between; gap: 10px; padding-bottom: 13px; border-bottom: 1px solid var(--line); font-size: 13px; font-weight: 750; }
    .console-dots { display: flex; gap: 5px; }
    .console-dots i { width: 7px; height: 7px; border-radius: 50%; background: #fb8771; }
    .console-dots i:nth-child(2) { background: #e5bc39; }
    .console-dots i:nth-child(3) { background: #41b884; }
    .model-row { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 10px 12px; border-radius: 5px; background: #f2f7fa; font-size: 13px; }
    .model-row strong { font-weight: 750; }
    .model-tag { color: #16734e; font-size: 11px; font-weight: 750; }
    .hero-stat { display: flex; justify-content: space-between; gap: 14px; padding-top: 8px; color: #687a8b; font-size: 12px; }
    .hero-stat b { color: var(--blue-dark); font-size: 16px; }
    .section { padding: 68px 0; }
    .section-head { display: flex; align-items: end; justify-content: space-between; gap: 22px; margin-bottom: 28px; }
    .section-head h2 { margin: 0; font-size: 32px; line-height: 1.2; letter-spacing: 0; }
    .section-head p { max-width: 570px; margin: 8px 0 0; color: var(--muted); }
    .kicker { margin-bottom: 9px; color: var(--teal); font-size: 12px; font-weight: 800; }
    .metrics { display: grid; grid-template-columns: repeat(4,1fr); border-block: 1px solid var(--line); background: #fff; }
    .metric { padding: 24px 20px; border-right: 1px solid var(--line); }
    .metric:last-child { border-right: 0; }
    .metric strong { display: block; color: var(--blue-dark); font-size: 25px; line-height: 1.2; }
    .metric span { display: block; margin-top: 6px; color: var(--muted); font-size: 13px; }
    .intro-band { background: #eaf5f1; }
    .intro-layout { display: grid; grid-template-columns: .9fr 1.1fr; gap: 54px; align-items: start; }
    .intro-layout h2 { margin: 0 0 14px; font-size: 32px; line-height: 1.25; }
    .intro-layout p { margin: 0; color: #536a69; }
    .intro-points { display: grid; grid-template-columns: repeat(2,1fr); gap: 18px 24px; }
    .intro-point { padding-top: 13px; border-top: 2px solid #8fcbb7; }
    .intro-point strong { display: block; margin-bottom: 4px; font-size: 15px; }
    .intro-point span { color: #596d70; font-size: 13px; }
    .services { display: grid; grid-template-columns: repeat(3,1fr); gap: 0 22px; border-top: 1px solid var(--line); }
    .service { padding: 23px 0 20px; border-bottom: 1px solid var(--line); }
    .service h3 { margin: 0 0 7px; font-size: 17px; }
    .service p { margin: 0; color: var(--muted); font-size: 13px; }
    .service-label { display: inline-block; margin-bottom: 9px; color: #087f83; font-size: 11px; font-weight: 800; }
    .platforms { display: flex; flex-wrap: wrap; gap: 9px; margin-top: 28px; }
    .platforms span { padding: 7px 11px; border: 1px solid #d8e4ec; border-radius: 4px; background: white; color: #3e5266; font-size: 12px; }
    .workflow { background: #162e43; color: white; }
    .workflow .section-head p, .workflow .kicker { color: #bdceda; }
    .workflow-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 0; }
    .step { position: relative; padding: 20px 22px 18px 0; border-top: 1px solid #597080; }
    .step:not(:last-child)::after { position: absolute; top: -4px; right: 12px; width: 7px; height: 7px; border-radius: 50%; background: var(--lime); content: ""; }
    .step-number { color: var(--lime); font-size: 12px; font-weight: 800; }
    .step h3 { margin: 10px 0 5px; font-size: 18px; }
    .step p { margin: 0; color: #c2d0da; font-size: 13px; }
    .industry-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 0 30px; }
    .industry-item { padding: 18px 0; border-bottom: 1px solid var(--line); }
    .industry-item h3 { margin: 0 0 5px; font-size: 16px; }
    .industry-item p { margin: 0; color: var(--muted); font-size: 13px; }
    .network-band { background: #f0f6fc; }
    .network-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; }
    .network-layout h2 { margin: 0 0 12px; font-size: 30px; }
    .network-layout p { color: var(--muted); }
    .network-list { display: grid; grid-template-columns: 1fr 1fr; gap: 13px; padding: 0; margin: 0; list-style: none; }
    .network-list li { padding: 13px 14px; border-left: 3px solid #2bb69a; background: white; font-size: 13px; font-weight: 700; }
    .case-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; }
    .case { overflow: hidden; border: 1px solid var(--line); background: white; }
    .case img { display: block; width: 100%; max-width: 100%; height: auto; }
    .case-copy { padding: 18px 20px 21px; }
    .case-copy h3 { margin: 0 0 5px; font-size: 17px; }
    .case-copy p { margin: 0; color: var(--muted); font-size: 13px; }
    .rating-band { background: #fff6e6; }
    .rating-layout { display: grid; grid-template-columns: .8fr 1.2fr; gap: 40px; align-items: center; }
    .rating-summary { padding: 26px; border-left: 4px solid #f4b835; background: white; }
    .rating-summary .stars { color: #e79b00; font-size: 23px; letter-spacing: 0; }
    .rating-summary strong { display: block; margin-top: 6px; font-size: 42px; line-height: 1; }
    .rating-summary span { color: var(--muted); font-size: 13px; }
    .table-wrap { overflow-x: auto; border: 1px solid #e8ddc6; background: white; }
    table { width: 100%; min-width: 540px; border-collapse: collapse; font-size: 13px; }
    th, td { padding: 12px 14px; border-bottom: 1px solid #eee7d9; text-align: left; vertical-align: top; }
    th { background: #fffaf0; color: #374452; font-weight: 800; }
    tr:last-child td { border-bottom: 0; }
    .reviews { display: grid; grid-template-columns: repeat(3,1fr); gap: 20px; }
    .review { padding: 19px 0; border-top: 2px solid #82cdbb; border-bottom: 1px solid var(--line); }
    .review p { margin: 0 0 15px; color: #47596b; font-size: 14px; }
    .review strong { display: block; font-size: 13px; }
    .review span { color: var(--muted); font-size: 12px; }
    .quote-mark { color: #0b8d82; font-size: 26px; line-height: 1; }
    .faq-layout { display: grid; grid-template-columns: .7fr 1.3fr; gap: 50px; align-items: start; }
    .faq-layout h2 { margin: 0; font-size: 32px; }
    .faq-layout > div:first-child p { color: var(--muted); }
    .faq-list details { border-top: 1px solid var(--line); }
    .faq-list details:last-child { border-bottom: 1px solid var(--line); }
    .faq-list summary { position: relative; padding: 15px 35px 15px 0; cursor: pointer; font-size: 14px; font-weight: 750; list-style: none; }
    .faq-list summary::-webkit-details-marker { display: none; }
    .faq-list summary::after { position: absolute; top: 14px; right: 3px; content: "+"; color: var(--blue); font-size: 20px; }
    .faq-list details[open] summary::after { content: "−"; }
    .faq-list details p { margin: 0; padding: 0 28px 16px 0; color: var(--muted); font-size: 13px; }
    .article-strip { background: #eff8f5; }
    .article-list { display: grid; grid-template-columns: repeat(5,1fr); gap: 14px; }
    .article-list a { min-height: 102px; display: flex; flex-direction: column; justify-content: space-between; padding: 15px; border: 1px solid #d6e8e1; background: white; color: var(--ink); text-decoration: none; transition: transform .2s ease, border-color .2s ease; }
    .article-list a:hover { transform: translateY(-3px); border-color: #76bda7; }
    .article-list strong { font-size: 13px; }
    .article-list span { color: var(--teal); font-size: 11px; font-weight: 750; }
    .knowledge { display: flex; flex-wrap: wrap; gap: 9px; }
    .knowledge span { padding: 7px 10px; background: #e6f3ff; color: #23588a; font-size: 12px; }
    .contact-band { background: #e9f5f1; }
    .contact-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: start; }
    .contact-layout h2 { margin: 0 0 12px; font-size: 32px; }
    .contact-layout p { color: #526a68; }
    .contact-detail { margin-top: 22px; padding-top: 16px; border-top: 1px solid #c9dfd7; color: #385854; font-size: 14px; }
    .contact-form { display: grid; grid-template-columns: 1fr 1fr; gap: 13px; }
    .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%; min-height: 44px; padding: 10px 11px; border: 1px solid #c8d9d2; border-radius: 4px; background: white; color: var(--ink); outline: none; }
    .field textarea { min-height: 100px; resize: vertical; }
    .field input:focus, .field select:focus, .field textarea:focus { border-color: var(--blue); box-shadow: 0 0 0 3px rgba(23,105,210,.1); }
    .contact-form button { justify-self: start; }
    .join-band { padding: 37px 0; background: var(--blue); color: white; }
    .join-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; }
    .join-inner h2 { margin: 0 0 5px; font-size: 25px; }
    .join-inner p { margin: 0; color: #d9eaff; font-size: 14px; }
    .join-inner .button { flex: 0 0 auto; background: var(--lime); color: #20341d; }
    .site-footer { padding: 33px 0 22px; background: #f7fafc; color: #243447; border-top: 1px solid var(--line); }
    .footer-main { display: grid; grid-template-columns: 1.1fr .9fr; gap: 32px; padding-bottom: 22px; }
    .footer-main p { margin: 9px 0 0; color: #5d6c7a; font-size: 13px; }
    .footer-links { display: flex; flex-wrap: wrap; align-content: start; gap: 8px 17px; }
    .footer-links a { color: #275a8a; font-size: 12px; text-decoration: none; }
    .footer-links a:hover { text-decoration: underline; }
    .footer-bottom { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding-top: 14px; border-top: 1px solid var(--line); color: #667484; font-size: 12px; }
    .float-contact { position: fixed; right: 18px; bottom: 20px; z-index: 15; display: grid; gap: 8px; }
    .float-contact a, .to-top { display: grid; place-items: center; width: 46px; height: 46px; border: 1px solid #d2e0e8; border-radius: 50%; background: white; color: var(--blue-dark); text-decoration: none; box-shadow: 0 6px 20px rgba(25,58,91,.12); font-size: 12px; font-weight: 800; cursor: pointer; }
    .to-top { display: none; }
    .reveal { opacity: 0; transform: translateY(14px); transition: opacity .55s ease, transform .55s ease; }
    .reveal.visible { opacity: 1; transform: translateY(0); }
    @keyframes float-in { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: translateY(0); } }
    @media (max-width: 940px) {
      .nav-wrap { gap: 10px; }
      .nav-links a { padding-inline: 7px; font-size: 12px; }
      .header-cta { display: none; }
      .hero-grid { gap: 30px; }
      .services { grid-template-columns: repeat(2,1fr); }
      .industry-grid { grid-template-columns: repeat(2,1fr); }
      .article-list { grid-template-columns: repeat(3,1fr); }
    }
    @media (max-width: 720px) {
      .container { width: min(var(--container), calc(100% - 32px)); }
      .header-inner { min-height: 65px; }
      .menu-toggle { display: block; flex: 0 0 auto; }
      .nav-wrap { gap: 8px; }
      .nav-links { display: none; position: absolute; top: 64px; left: 0; right: 0; padding: 8px 16px 14px; background: white; border-bottom: 1px solid var(--line); box-shadow: 0 14px 22px rgba(25,58,91,.08); }
      .nav-links.open { display: grid; grid-template-columns: 1fr 1fr; }
      .nav-links a { padding: 10px 8px; font-size: 13px; }
      .hero { padding: 55px 0 42px; }
      .hero-grid, .intro-layout, .network-layout, .rating-layout, .faq-layout, .contact-layout { grid-template-columns: 1fr; gap: 28px; }
      h1 { font-size: 40px; }
      .hero-copy { font-size: 15px; }
      .hero-art { max-width: 480px; }
      .section { padding: 52px 0; }
      .section-head { display: block; }
      .section-head h2, .intro-layout h2, .network-layout h2, .contact-layout h2, .faq-layout h2 { font-size: 27px; }
      .metrics { grid-template-columns: 1fr 1fr; }
      .metric:nth-child(2) { border-right: 0; }
      .metric:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
      .workflow-grid { grid-template-columns: 1fr 1fr; gap: 20px; }
      .step:nth-child(2)::after { display: none; }
      .services, .industry-grid { grid-template-columns: 1fr 1fr; }
      .case-grid { grid-template-columns: 1fr; }
      .reviews { grid-template-columns: 1fr 1fr; gap: 15px; }
      .article-list { grid-template-columns: 1fr 1fr; }
      .footer-main { grid-template-columns: 1fr; gap: 22px; }
      .join-inner { align-items: flex-start; flex-direction: column; }
    }
    @media (max-width: 460px) {
      .brand span { font-size: 15px; }
      .hero-actions .button { width: 100%; }
      .services, .industry-grid, .reviews { grid-template-columns: 1fr; }
      .intro-points, .network-list { grid-template-columns: 1fr; }
      .workflow-grid { grid-template-columns: 1fr; }
      .step::after { display: none; }
      .article-list { grid-template-columns: 1fr; }
      .contact-form { grid-template-columns: 1fr; }
      .field.full { grid-column: auto; }
      .footer-bottom { align-items: flex-start; flex-direction: column; }
    }
    @media (prefers-reduced-motion: reduce) {
      *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; transition-duration: .01ms !important; }
      .reveal { opacity: 1; transform: none; }
    }