:root {
      color-scheme: light;
      --ink: #17243a;
      --muted: #59677b;
      --line: #dfe7ef;
      --paper: #f8fbff;
      --white: #fff;
      --blue: #1769e0;
      --cyan: #0a9db3;
      --coral: #f0785f;
      --lime: #c4eb75;
      --navy: #152c48;
      --container: 1160px;
      font-family: Inter, "Noto Sans SC", "Microsoft YaHei", sans-serif;
    }
    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    body {
      margin: 0;
      background: var(--paper);
      color: var(--ink);
      line-height: 1.65;
      -webkit-font-smoothing: antialiased;
    }
    a { color: inherit; }
    img { max-width: 100%; height: auto; }
    button, input, select, textarea { font: inherit; }
    .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(220, 229, 238, .85);
      background: rgba(248, 251, 255, .94);
      backdrop-filter: blur(14px);
    }
    .nav-wrap { 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; font-weight: 800; white-space: nowrap; }
    .brand img { width: 38px; height: 38px; object-fit: contain; }
    .nav-links { display: flex; align-items: center; justify-content: flex-end; gap: 0; list-style: none; margin: 0; padding: 0; }
    .nav-links a { display: block; padding: 10px 11px; color: #3d4c61; font-size: 13px; text-decoration: none; transition: color .2s, background .2s; border-radius: 4px; }
    .nav-links a:hover, .nav-links a:focus-visible { color: var(--blue); background: #edf4ff; }
    .nav-actions { display: flex; align-items: center; gap: 10px; }
    .menu-toggle { display: none; border: 1px solid var(--line); background: var(--white); color: var(--ink); width: 42px; height: 42px; border-radius: 5px; cursor: pointer; }
    .button { display: inline-flex; justify-content: center; align-items: center; gap: 8px; min-height: 46px; padding: 11px 19px; border: 1px solid transparent; border-radius: 5px; background: var(--blue); color: #fff; text-decoration: none; font-weight: 700; transition: transform .2s, box-shadow .2s, background .2s; cursor: pointer; }
    .button:hover { transform: translateY(-2px); box-shadow: 0 9px 22px rgba(23, 105, 224, .2); }
    .button--outline { border-color: #bfd1e4; background: transparent; color: var(--ink); }
    .button--light { background: var(--white); color: var(--navy); }
    .button--small { min-height: 40px; padding: 8px 14px; font-size: 13px; }
    .hero { position: relative; overflow: hidden; background: linear-gradient(124deg, #f4faff 0%, #e7f7fb 50%, #fff6ec 100%); }
    .hero::before, .hero::after { content: ""; position: absolute; pointer-events: none; border: 1px solid rgba(23, 105, 224, .15); transform: rotate(32deg); }
    .hero::before { width: 430px; height: 180px; right: -130px; top: 42px; border-radius: 48% 16% 42% 20%; }
    .hero::after { width: 280px; height: 120px; right: 70px; bottom: 2px; border-color: rgba(10, 157, 179, .22); border-radius: 18% 45% 15% 42%; }
    .hero-inner { position: relative; z-index: 1; padding-top: 74px; padding-bottom: 52px; }
    .hero-copy { max-width: 760px; }
    .eyebrow { display: inline-flex; align-items: center; gap: 9px; margin: 0 0 18px; color: #197d9a; font-size: 13px; font-weight: 800; letter-spacing: 1.2px; }
    .eyebrow::before { width: 22px; height: 2px; background: var(--coral); content: ""; }
    h1, h2, h3, p { margin-top: 0; }
    h1 { max-width: 700px; margin-bottom: 18px; font-size: clamp(38px, 6vw, 66px); line-height: 1.13; letter-spacing: 0; }
    .hero-copy > p:not(.eyebrow) { max-width: 650px; color: #45566d; font-size: 17px; }
    .hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 26px; }
    .hero-points { display: flex; flex-wrap: wrap; gap: 10px 24px; margin-top: 24px; color: #46576d; font-size: 13px; }
    .hero-points span::before { content: "✓"; margin-right: 7px; color: #098d88; font-weight: 800; }
    .hero-bottom { position: relative; z-index: 2; display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; margin-top: 62px; background: rgba(184, 203, 220, .8); border: 1px solid rgba(184, 203, 220, .8); }
    .metric { min-height: 102px; padding: 17px 21px; background: rgba(255, 255, 255, .82); }
    .metric strong { display: block; margin-bottom: 4px; color: #1a5578; font-size: 22px; }
    .metric span { color: var(--muted); font-size: 13px; }
    .section { padding: 78px 0; }
    .section--white { background: var(--white); }
    .section--tint { background: #eff7fa; }
    .section--navy { background: var(--navy); color: #f2f7fc; }
    .section--navy .section-lead, .section--navy .eyebrow { color: #b9cede; }
    .section-head { max-width: 720px; margin-bottom: 34px; }
    .section-head h2 { margin-bottom: 12px; font-size: clamp(29px, 4vw, 42px); line-height: 1.2; letter-spacing: 0; }
    .section-lead { margin-bottom: 0; color: var(--muted); }
    .split { display: grid; grid-template-columns: 1.1fr .9fr; gap: 52px; align-items: start; }
    .intro-copy p { color: var(--muted); }
    .intro-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px 24px; padding: 0; margin: 24px 0 0; list-style: none; }
    .intro-list li { padding-left: 18px; position: relative; font-weight: 650; }
    .intro-list li::before { content: ""; position: absolute; top: 10px; left: 0; width: 7px; height: 7px; background: var(--coral); border-radius: 50%; }
    .capability-rail { border-left: 2px solid #b8d5e7; padding-left: 24px; }
    .capability-rail article { padding: 2px 0 19px; }
    .capability-rail h3 { margin-bottom: 6px; font-size: 17px; }
    .capability-rail p { margin: 0; color: var(--muted); font-size: 14px; }
    .service-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0 25px; }
    .service-item { padding: 24px 0; border-top: 1px solid var(--line); }
    .service-index { color: #168e9a; font-size: 12px; font-weight: 800; }
    .service-item h3 { margin: 7px 0; font-size: 18px; }
    .service-item p { margin: 0; color: var(--muted); font-size: 14px; }
    .platform-strip { display: flex; flex-wrap: wrap; gap: 9px; margin-top: 28px; }
    .platform-strip span { padding: 6px 11px; border: 1px solid #cbdce7; border-radius: 3px; background: #fff; color: #3d5065; font-size: 12px; }
    .workflow { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; counter-reset: steps; }
    .workflow article { position: relative; padding-top: 18px; border-top: 2px solid #b5d4de; counter-increment: steps; }
    .workflow article::before { content: "0" counter(steps); display: block; margin-bottom: 15px; color: #128394; font-size: 13px; font-weight: 800; }
    .workflow h3 { margin-bottom: 7px; font-size: 17px; }
    .workflow p { margin: 0; color: var(--muted); font-size: 14px; }
    .industry-list { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 0 22px; }
    .industry-list article { padding: 16px 0; border-bottom: 1px solid #d9e3e9; }
    .industry-list h3 { margin-bottom: 5px; font-size: 16px; }
    .industry-list p { margin: 0; color: var(--muted); font-size: 13px; }
    .network-layout { display: grid; grid-template-columns: .9fr 1.1fr; gap: 42px; align-items: start; }
    .network-note { padding: 20px 22px; border-left: 3px solid var(--coral); background: #fff; color: #485a70; }
    .network-note p:last-child { margin-bottom: 0; }
    .network-tags { display: flex; flex-wrap: wrap; gap: 10px; }
    .network-tags span { padding: 9px 13px; background: #e5f2f5; color: #24566a; font-size: 13px; }
    .case-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
    .case { border-bottom: 2px solid #c9dce8; background: #fff; }
    .case-image { padding: 12px; background: #edf4f7; }
    .case-image img { display: block; width: 100%; aspect-ratio: 16 / 9; object-fit: contain; }
    .case-copy { padding: 17px 18px 20px; }
    .case-copy h3 { margin-bottom: 7px; font-size: 17px; }
    .case-copy p { margin: 0; color: var(--muted); font-size: 13px; }
    .score-panel { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 24px 28px; margin-bottom: 22px; background: #eaf6f3; border-left: 4px solid #15967f; }
    .score-panel strong { display: block; color: #146955; font-size: 32px; line-height: 1.15; }
    .stars { color: #d18122; letter-spacing: 2px; font-size: 18px; }
    .table-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 var(--line); text-align: left; vertical-align: top; }
    th { background: #eef5fa; color: #2d4359; font-size: 13px; }
    td { color: #46576a; font-size: 13px; }
    td:first-child { color: var(--ink); font-weight: 700; }
    .reviews { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
    .review { padding: 20px 0; border-top: 2px solid #c7dde6; }
    .review blockquote { margin: 0 0 15px; color: #35475b; font-size: 14px; }
    .review cite { color: #087d8b; font-size: 13px; font-style: normal; font-weight: 750; }
    .form-layout { display: grid; grid-template-columns: .8fr 1.2fr; gap: 48px; align-items: start; }
    .contact-methods { display: grid; gap: 12px; margin-top: 23px; }
    .contact-methods a { color: #d9edf6; text-decoration-color: #7798ab; text-underline-offset: 3px; }
    .contact-form { display: grid; grid-template-columns: repeat(2, 1fr); gap: 15px; }
    .field { display: grid; gap: 6px; }
    .field--full { grid-column: 1 / -1; }
    .field label { color: #eff6fa; font-size: 13px; font-weight: 700; }
    .field input, .field select, .field textarea { width: 100%; padding: 11px 12px; border: 1px solid #70879b; border-radius: 3px; background: #fff; color: #17243a; }
    .field textarea { min-height: 112px; resize: vertical; }
    .field input:focus, .field select:focus, .field textarea:focus { outline: 2px solid #77c8d0; outline-offset: 1px; }
    .faq-list { max-width: 900px; }
    .faq-item { border-top: 1px solid var(--line); }
    .faq-item:last-child { border-bottom: 1px solid var(--line); }
    .faq-item summary { position: relative; padding: 17px 35px 17px 0; cursor: pointer; font-weight: 700; list-style: none; }
    .faq-item summary::-webkit-details-marker { display: none; }
    .faq-item summary::after { content: "+"; position: absolute; right: 4px; top: 13px; color: var(--blue); font-size: 22px; font-weight: 400; }
    .faq-item[open] summary::after { content: "−"; }
    .faq-item p { max-width: 800px; margin: 0 0 18px; color: var(--muted); font-size: 14px; }
    .article-links { display: grid; grid-template-columns: repeat(5, 1fr); gap: 14px; }
    .article-links a { min-height: 90px; display: flex; align-items: end; padding: 13px; border-top: 2px solid #59afbd; background: #f0f8fa; color: #23465a; font-weight: 700; font-size: 13px; text-decoration: none; transition: background .2s, transform .2s; }
    .article-links a:hover { transform: translateY(-2px); background: #e4f3f5; }
    .knowledge { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
    .knowledge article { padding-top: 16px; border-top: 2px solid #eb9675; }
    .knowledge h3 { font-size: 17px; }
    .knowledge p { margin: 0; color: var(--muted); font-size: 14px; }
    .join-band { display: flex; align-items: center; justify-content: space-between; gap: 24px; padding: 25px 0; border-top: 1px solid #d6e2e9; }
    .join-band h3 { margin-bottom: 4px; font-size: 20px; }
    .join-band p { margin: 0; color: var(--muted); font-size: 14px; }
    .site-footer { padding: 26px 0; background: #e9f0f5; color: #26384b; }
    .footer-main { display: flex; justify-content: space-between; align-items: flex-start; gap: 24px; }
    .footer-main p { margin: 5px 0 0; color: #526477; font-size: 13px; }
    .footer-links { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 8px 17px; max-width: 600px; }
    .footer-links a { color: #32566f; font-size: 12px; text-underline-offset: 3px; }
    .copyright { padding-top: 15px; margin-top: 18px; border-top: 1px solid #d0dce5; color: #526477; font-size: 12px; }
    .float-help { position: fixed; z-index: 15; right: 17px; bottom: 18px; display: grid; gap: 8px; }
    .float-help a { min-width: 48px; min-height: 44px; display: grid; place-items: center; padding: 8px 11px; border: 1px solid #bdd1df; background: #fff; color: #1d526a; font-size: 12px; text-decoration: none; box-shadow: 0 5px 18px rgba(24, 52, 74, .1); }
    .reveal { opacity: 0; transform: translateY(12px); transition: opacity .55s ease, transform .55s ease; }
    .reveal.is-visible { opacity: 1; transform: none; }
    @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: 980px) {
      .nav-wrap { position: relative; }
      .menu-toggle { display: inline-grid; place-items: center; }
      .nav-actions > .button { display: none; }
      .nav-links { display: none; position: absolute; top: calc(100% - 1px); left: 0; right: 0; padding: 10px; border: 1px solid var(--line); background: #fff; box-shadow: 0 12px 24px rgba(24, 52, 74, .1); }
      .nav-links.is-open { display: grid; grid-template-columns: repeat(2, 1fr); }
      .nav-links a { padding: 12px; }
      .service-grid, .industry-list { grid-template-columns: repeat(2, minmax(0, 1fr)); }
      .article-links { grid-template-columns: repeat(3, 1fr); }
    }
    @media (max-width: 680px) {
      .container { width: min(var(--container), calc(100% - 30px)); }
      .nav-wrap { min-height: 66px; }
      .hero-inner { padding-top: 55px; padding-bottom: 38px; }
      .hero-bottom { grid-template-columns: repeat(2, 1fr); margin-top: 44px; }
      .metric { min-height: 88px; padding: 13px; }
      .section { padding: 57px 0; }
      .split, .network-layout, .form-layout { grid-template-columns: 1fr; gap: 28px; }
      .intro-list { grid-template-columns: 1fr; }
      .service-grid, .industry-list, .workflow, .case-grid, .reviews, .knowledge { grid-template-columns: 1fr; }
      .workflow { gap: 18px; }
      .workflow article { padding-top: 13px; }
      .case-image img { aspect-ratio: 16 / 9; }
      .score-panel { align-items: flex-start; flex-direction: column; padding: 20px; }
      .contact-form { grid-template-columns: 1fr; }
      .field--full { grid-column: auto; }
      .article-links { grid-template-columns: repeat(2, 1fr); }
      .join-band, .footer-main { align-items: flex-start; flex-direction: column; }
      .footer-links { justify-content: flex-start; }
      .float-help { right: 8px; bottom: 10px; }
    }