:root {
      color-scheme: light;
      --ink: #162333;
      --muted: #58697c;
      --line: #d9e2eb;
      --paper: #f4f7fb;
      --white: #fff;
      --blue: #1265d6;
      --teal: #087f83;
      --coral: #c64b37;
      --lime: #d5f178;
      --navy: #10283a;
      --container: 1160px;
    }
    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; scroll-padding-top: 82px; }
    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; }
    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;
      z-index: 20;
      top: 0;
      border-bottom: 1px solid rgba(217,226,235,.9);
      background: rgba(255,255,255,.94);
      backdrop-filter: blur(14px);
    }
    .header-inner { min-height: 72px; display: flex; align-items: center; justify-content: space-between; gap: 20px; }
    .brand { display: flex; align-items: center; gap: 11px; text-decoration: none; font-weight: 800; white-space: nowrap; }
    .brand img { width: 40px; height: 40px; object-fit: contain; }
    .nav-links { display: flex; align-items: center; justify-content: flex-end; gap: 0; flex-wrap: wrap; }
    .nav-links a { padding: 8px 10px; color: #34465a; font-size: 13px; text-decoration: none; }
    .nav-links a:hover { color: var(--blue); }
    .nav-cta, .button {
      display: inline-flex; align-items: center; justify-content: center; gap: 8px;
      min-height: 44px; padding: 10px 18px; border: 0; border-radius: 4px;
      background: var(--blue); color: #fff; font-weight: 700; text-decoration: none;
      transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
    }
    .nav-cta { min-height: 38px; padding: 8px 13px; margin-left: 10px; font-size: 13px; }
    .button:hover, .nav-cta:hover { transform: translateY(-2px); box-shadow: 0 9px 22px rgba(18,101,214,.2); background: #0d55b8; }
    .button.secondary { background: var(--white); color: var(--ink); border: 1px solid var(--line); }
    .menu-toggle { display: none; width: 42px; height: 42px; border: 1px solid var(--line); border-radius: 4px; background: #fff; color: var(--ink); }
    .hero {
      position: relative; overflow: hidden; isolation: isolate;
      padding: 78px 0 48px;
      background: linear-gradient(120deg, #e9f2f7 0%, #f7f8f2 53%, #e7f3ef 100%);
      border-bottom: 1px solid #d4e1e9;
    }
    .hero::before {
      content: ""; position: absolute; inset: 0; z-index: -1; opacity: .5;
      background-image: linear-gradient(rgba(38,83,116,.07) 1px, transparent 1px), linear-gradient(90deg, rgba(38,83,116,.07) 1px, transparent 1px);
      background-size: 42px 42px;
      mask-image: linear-gradient(90deg, #000 0%, transparent 80%);
    }
    .hero-layout { display: grid; grid-template-columns: minmax(0, 1.45fr) minmax(260px, .7fr); align-items: center; gap: 50px; }
    .eyebrow { margin: 0 0 14px; color: var(--teal); font-size: 12px; font-weight: 800; letter-spacing: .12em; 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: 650px; margin: 20px 0 26px; color: #43576b; font-size: 17px; }
    .hero-actions { display: flex; gap: 12px; flex-wrap: wrap; }
    .hero-note { margin: 20px 0 0; color: #607183; font-size: 13px; }
    .hero-aside { padding: 23px 0 23px 25px; border-left: 1px solid #a8bdc9; }
    .hero-aside strong { display: block; margin-bottom: 7px; font-size: 20px; }
    .hero-aside p { margin: 0; color: #526678; font-size: 14px; }
    .signal { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 20px; }
    .signal div { padding: 13px; border: 1px solid #cfdee4; background: rgba(255,255,255,.72); }
    .signal b { display: block; color: var(--blue); font-size: 18px; }
    .signal span { color: var(--muted); font-size: 12px; }
    .quick-strip { padding: 19px 0; background: var(--navy); color: #fff; }
    .quick-inner { display: flex; align-items: center; justify-content: space-between; gap: 22px; flex-wrap: wrap; }
    .quick-inner strong { color: var(--lime); font-size: 14px; }
    .quick-inner span { color: #e0e8ee; font-size: 13px; }
    .section { padding: 68px 0; }
    .section.alt { background: #edf2f6; border-block: 1px solid #e0e7ed; }
    .section.dark { color: #f5f8fb; background: var(--navy); }
    .section-heading { max-width: 720px; margin-bottom: 30px; }
    .section-heading h2 { margin: 0 0 9px; font-size: 32px; line-height: 1.25; }
    .section-heading p { margin: 0; color: var(--muted); }
    .dark .section-heading p { color: #c6d4df; }
    .kicker { margin: 0 0 9px; color: var(--teal); font-size: 12px; font-weight: 800; }
    .grid { display: grid; gap: 14px; }
    .metrics { grid-template-columns: repeat(4, 1fr); }
    .metric { padding: 20px; border-top: 3px solid var(--teal); background: #fff; }
    .metric strong { display: block; font-size: 25px; line-height: 1.25; }
    .metric span { color: var(--muted); font-size: 13px; }
    .intro-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 42px; align-items: start; }
    .intro-copy { max-width: 680px; color: #43576b; }
    .intro-copy p:first-child { margin-top: 0; }
    .principles { border-left: 2px solid var(--teal); padding-left: 20px; }
    .principles p { margin: 0 0 14px; }
    .principles b { color: var(--ink); }
    .capabilities { grid-template-columns: repeat(3, 1fr); }
    .capability { padding: 20px; background: #fff; border: 1px solid var(--line); transition: transform .2s ease, box-shadow .2s ease; }
    .capability:hover { transform: translateY(-3px); box-shadow: 0 12px 28px rgba(24,54,79,.09); }
    .capability .index { color: var(--teal); font-size: 12px; font-weight: 800; }
    .capability h3 { margin: 7px 0; font-size: 18px; }
    .capability p { margin: 0; color: var(--muted); font-size: 14px; }
    .wide-callout { display: flex; justify-content: space-between; align-items: center; gap: 22px; padding: 22px 24px; background: var(--lime); color: #26351b; }
    .wide-callout p { margin: 0; font-weight: 650; }
    .wide-callout a { flex: none; color: #26351b; font-weight: 800; }
    .workflow { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; border-top: 1px solid #aebdc9; }
    .step { padding: 22px 18px 10px 0; margin-right: 18px; }
    .step strong { display: inline-grid; place-items: center; width: 30px; height: 30px; margin-bottom: 13px; border-radius: 50%; background: var(--teal); color: #fff; font-size: 13px; }
    .step h3 { margin: 0 0 6px; font-size: 17px; }
    .step p { margin: 0; color: var(--muted); font-size: 14px; }
    .solutions { grid-template-columns: repeat(3, 1fr); }
    .solution { padding: 19px 0 17px; border-top: 1px solid #aebdc9; }
    .solution h3 { margin: 0 0 5px; font-size: 17px; }
    .solution p { margin: 0; color: var(--muted); font-size: 14px; }
    .network { display: flex; flex-wrap: wrap; gap: 8px; }
    .network span { padding: 8px 12px; border: 1px solid #cbd7e0; background: #fff; color: #34485b; font-size: 13px; }
    .asset-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; align-items: start; }
    .asset { margin: 0; }
    .asset .image-frame { overflow: hidden; border: 1px solid var(--line); background: #fff; }
    .asset img { display: block; width: 100%; height: auto; }
    .asset figcaption { padding-top: 8px; color: var(--muted); font-size: 13px; }
    .asset-square { max-width: 500px; }
    .compare-wrap { overflow-x: auto; border: 1px solid var(--line); background: #fff; }
    table { width: 100%; border-collapse: collapse; min-width: 690px; }
    th, td { padding: 14px 16px; border-bottom: 1px solid #e2e8ee; text-align: left; vertical-align: top; }
    th { background: #eaf1f5; color: #34485b; font-size: 13px; }
    td { font-size: 14px; }
    tr:last-child td { border-bottom: 0; }
    .rating-band { display: flex; align-items: center; justify-content: space-between; gap: 20px; margin-bottom: 17px; padding: 19px 22px; background: var(--navy); color: #fff; }
    .rating-band strong { font-size: 20px; }
    .rating-band .score { color: var(--lime); font-size: 22px; font-weight: 800; }
    .stars { color: #f3bd32; letter-spacing: 2px; }
    .tag-cloud { display: flex; flex-wrap: wrap; gap: 9px; }
    .tag-cloud span { padding: 8px 12px; border-left: 2px solid var(--teal); background: #fff; color: #34485b; font-size: 13px; }
    .faq-list { border-top: 1px solid #aebdc9; }
    details { border-bottom: 1px solid #aebdc9; }
    summary { position: relative; padding: 17px 38px 17px 0; cursor: pointer; font-weight: 700; list-style: none; }
    summary::-webkit-details-marker { display: none; }
    summary::after { content: "+"; position: absolute; right: 4px; top: 14px; color: var(--teal); font-size: 22px; font-weight: 400; }
    details[open] summary::after { content: "−"; }
    details p { max-width: 850px; margin: -3px 0 18px; color: var(--muted); }
    .reviews { grid-template-columns: repeat(3, 1fr); }
    .review { padding: 19px; background: #fff; border: 1px solid var(--line); }
    .review p { margin: 0 0 15px; color: #34485b; font-size: 14px; }
    .review strong { display: block; font-size: 13px; }
    .review span { color: var(--muted); font-size: 12px; }
    .case-grid { grid-template-columns: repeat(3, 1fr); }
    .case { padding: 20px; border-top: 3px solid var(--coral); background: #fff; }
    .case h3 { margin: 0 0 8px; font-size: 17px; }
    .case p { margin: 0; color: var(--muted); font-size: 14px; }
    .articles { display: grid; grid-template-columns: repeat(5, 1fr); gap: 12px; }
    .article-link { min-height: 74px; display: flex; align-items: center; padding: 13px; border: 1px solid var(--line); background: #fff; color: #24435e; font-size: 13px; font-weight: 650; text-decoration: none; overflow-wrap: anywhere; }
    .article-link:hover { border-color: var(--blue); color: var(--blue); }
    .form-layout { display: grid; grid-template-columns: .8fr 1.2fr; gap: 35px; align-items: start; }
    .contact-info p { margin: 0 0 14px; color: #c6d4df; }
    .contact-info a { color: #fff; }
    .contact-info h3 { margin-top: 0; font-size: 21px; }
    .contact-form { display: grid; grid-template-columns: 1fr 1fr; gap: 13px; padding: 22px; background: #fff; color: var(--ink); }
    .field { display: grid; gap: 6px; }
    .field.full { grid-column: 1 / -1; }
    .field label { color: #3b4e60; font-size: 13px; font-weight: 700; }
    .field input, .field select, .field textarea { width: 100%; min-height: 44px; padding: 10px 11px; border: 1px solid #cbd6df; border-radius: 3px; background: #fff; color: var(--ink); }
    .field textarea { min-height: 110px; resize: vertical; }
    .form-note { grid-column: 1 / -1; margin: 0; color: var(--muted); font-size: 12px; }
    .contact-form .button { justify-self: start; }
    .footer { padding: 24px 0; background: #e5ebf0; color: #324457; }
    .footer-inner { display: flex; align-items: start; justify-content: space-between; gap: 24px; }
    .footer p { margin: 0; font-size: 13px; }
    .footer-links { display: flex; flex-wrap: wrap; gap: 6px 16px; }
    .footer-links a { color: #344e66; font-size: 13px; text-decoration: none; }
    .footer-links a:hover { color: var(--blue); }
    .service-float { position: fixed; z-index: 15; right: 18px; bottom: 20px; display: grid; gap: 8px; }
    .service-float a { display: grid; place-items: center; width: 48px; height: 48px; border: 1px solid #c8d6df; border-radius: 50%; background: #fff; color: var(--navy); font-size: 12px; font-weight: 800; text-decoration: none; box-shadow: 0 5px 18px rgba(17,40,58,.14); }
    .service-float a:hover { background: var(--lime); }
    .reveal { opacity: 0; transform: translateY(12px); transition: opacity .5s ease, transform .5s ease; }
    .reveal.visible { opacity: 1; transform: translateY(0); }
    @media (max-width: 980px) {
      .nav-links { display: none; position: absolute; top: 72px; left: 0; right: 0; max-height: calc(100vh - 72px); overflow-y: auto; padding: 10px 20px 16px; border-bottom: 1px solid var(--line); background: #fff; }
      .nav-links.open { display: grid; grid-template-columns: repeat(3, 1fr); }
      .nav-links a { padding: 10px; }
      .nav-cta { margin: 7px 0 0; }
      .menu-toggle { display: inline-grid; place-items: center; }
      .header-inner { position: relative; }
      .hero-layout { gap: 26px; }
      .articles { grid-template-columns: repeat(3, 1fr); }
    }
    @media (max-width: 700px) {
      .container { width: min(var(--container), calc(100% - 30px)); }
      .hero { padding: 56px 0 37px; }
      .hero-layout, .intro-grid, .form-layout { grid-template-columns: 1fr; }
      .hero-aside { padding: 17px 0 0; border-left: 0; border-top: 1px solid #a8bdc9; }
      .section { padding: 50px 0; }
      .section-heading h2 { font-size: 27px; }
      .metrics { grid-template-columns: repeat(2, 1fr); }
      .capabilities, .solutions, .reviews, .case-grid { grid-template-columns: repeat(2, 1fr); }
      .workflow { grid-template-columns: repeat(2, 1fr); }
      .step { margin-right: 8px; }
      .articles { grid-template-columns: repeat(2, 1fr); }
      .footer-inner { flex-direction: column; }
    }
    @media (max-width: 460px) {
      .brand span { font-size: 14px; }
      .nav-links.open { grid-template-columns: repeat(2, 1fr); }
      .hero-actions { align-items: stretch; flex-direction: column; }
      .hero-actions .button { width: 100%; }
      .capabilities, .solutions, .reviews, .case-grid, .workflow { grid-template-columns: 1fr; }
      .asset-grid { grid-template-columns: 1fr; }
      .wide-callout, .rating-band { align-items: flex-start; flex-direction: column; }
      .contact-form { grid-template-columns: 1fr; padding: 17px; }
      .field.full, .form-note { grid-column: auto; }
      .service-float { right: 10px; bottom: 12px; }
    }
    @media (prefers-reduced-motion: reduce) {
      *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; }
      .reveal { opacity: 1; transform: none; }
    }