:root {
      color-scheme: light;
      --ink: #17243a;
      --muted: #596a80;
      --blue: #1749c8;
      --blue-dark: #10379d;
      --cyan: #16a9c8;
      --line: #dce4ef;
      --paper: #fff;
      --wash: #f3f6fb;
      --green: #147a62;
      --container: 1160px;
    }
    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    body {
      margin: 0;
      color: var(--ink);
      background: var(--wash);
      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; }
    button, a { -webkit-tap-highlight-color: transparent; }
    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(255,255,255,.96); border-bottom: 1px solid var(--line); }
    .header-row { min-height: 72px; display: flex; align-items: center; justify-content: space-between; gap: 20px; }
    .brand { display: inline-flex; align-items: center; gap: 10px; flex: 0 0 auto; font-size: 18px; font-weight: 800; }
    .brand img { width: 38px; max-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: #394a61; font-size: 13px; border-radius: 4px; }
    .nav-links a:hover, .nav-links a:focus-visible { color: var(--blue); background: #edf3ff; }
    .nav-cta { margin-left: 6px; padding: 9px 14px !important; color: #fff !important; background: var(--blue); }
    .menu-toggle { display: none; border: 1px solid var(--line); background: #fff; color: var(--ink); padding: 8px 11px; border-radius: 4px; }
    .hero { overflow: hidden; color: #fff; background: linear-gradient(118deg, #1239a6 0%, #1755d6 54%, #087dba 100%); }
    .hero-inner { position: relative; padding: 78px 0 58px; }
    .hero-inner::after { position: absolute; content: ""; width: 300px; height: 300px; right: 5%; top: 38px; border: 1px solid rgba(255,255,255,.2); transform: rotate(45deg); box-shadow: 0 0 0 36px rgba(255,255,255,.035), 0 0 0 72px rgba(255,255,255,.025); pointer-events: none; }
    .hero-copy { position: relative; z-index: 1; max-width: 720px; }
    .eyebrow { margin: 0 0 14px; color: #bcecff; font-size: 13px; font-weight: 700; letter-spacing: .08em; }
    h1 { max-width: 680px; margin: 0; font-size: clamp(34px, 5vw, 58px); line-height: 1.15; letter-spacing: 0; }
    .hero-copy > p:not(.eyebrow) { max-width: 650px; margin: 20px 0 26px; color: #e3efff; font-size: 17px; }
    .actions { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }
    .button { min-height: 46px; display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 11px 18px; border: 1px solid transparent; border-radius: 4px; font-weight: 700; transition: transform .2s, background .2s, box-shadow .2s; }
    .button:hover { transform: translateY(-2px); }
    .button-light { color: #1239a6; background: #fff; }
    .button-outline { color: #fff; border-color: rgba(255,255,255,.65); background: transparent; }
    .button-primary { color: #fff; background: var(--blue); }
    .button-primary:hover { background: var(--blue-dark); box-shadow: 0 8px 20px rgba(23,73,200,.2); }
    .hero-points { display: flex; flex-wrap: wrap; gap: 10px 22px; margin-top: 28px; color: #e6f1ff; font-size: 13px; }
    .hero-points span::before { content: "✓"; margin-right: 7px; color: #85e2d0; font-weight: 800; }
    .metrics { display: grid; grid-template-columns: repeat(4, 1fr); border-bottom: 1px solid var(--line); background: var(--paper); }
    .metric { padding: 22px 16px; text-align: center; border-right: 1px solid var(--line); }
    .metric:last-child { border-right: 0; }
    .metric strong { display: block; color: var(--blue); font-size: 20px; }
    .metric span { color: var(--muted); font-size: 13px; }
    main { overflow: hidden; }
    .section { padding: 66px 0; }
    .section-white { background: var(--paper); }
    .section-head { max-width: 720px; margin-bottom: 28px; }
    .section-kicker { margin: 0 0 7px; color: var(--blue); font-size: 12px; font-weight: 800; letter-spacing: .1em; }
    h2 { margin: 0 0 10px; font-size: 30px; line-height: 1.25; letter-spacing: 0; }
    h3 { margin: 0 0 8px; font-size: 18px; line-height: 1.4; }
    .section-head > p:last-child, .lead { margin: 0; color: var(--muted); }
    .intro-grid { display: grid; grid-template-columns: 1.2fr .8fr; gap: 44px; align-items: start; }
    .intro-copy p { color: var(--muted); }
    .intro-aside { padding: 20px 22px; border-left: 3px solid var(--cyan); background: #eef8fc; }
    .intro-aside p { margin: 0; color: #27445a; }
    .service-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
    .service-item { padding: 20px; border: 1px solid var(--line); border-top: 3px solid var(--cyan); background: #fff; transition: transform .2s, box-shadow .2s; }
    .service-item:hover { transform: translateY(-3px); box-shadow: 0 12px 26px rgba(22,54,100,.09); }
    .service-item p { margin: 0; color: var(--muted); font-size: 14px; }
    .tag-row { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; }
    .tag { padding: 5px 10px; border: 1px solid #d7e3f1; color: #314b67; background: #f8fbff; font-size: 12px; border-radius: 3px; }
    .steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; counter-reset: step; }
    .step { position: relative; padding: 18px 18px 18px 48px; border-top: 1px solid #b8c9dd; }
    .step::before { counter-increment: step; content: "0" counter(step); position: absolute; left: 0; top: 14px; color: var(--blue); font-size: 19px; font-weight: 800; }
    .step p { margin: 0; color: var(--muted); font-size: 14px; }
    .process-band { background: #edf3fb; }
    .flow-note { margin-top: 18px; padding: 14px 18px; color: #29445d; border-left: 3px solid var(--blue); background: #fff; }
    .industry-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px 24px; }
    .industry { padding: 16px 0; border-bottom: 1px solid var(--line); }
    .industry p { margin: 0; color: var(--muted); font-size: 14px; }
    .comparison-wrap { overflow-x: auto; border: 1px solid var(--line); background: #fff; }
    table { width: 100%; min-width: 680px; border-collapse: collapse; }
    th, td { padding: 14px 16px; text-align: left; border-bottom: 1px solid var(--line); vertical-align: top; }
    th { color: #fff; background: #193d9b; font-size: 14px; }
    td { color: #405168; font-size: 14px; }
    tbody tr:last-child td { border-bottom: 0; }
    .score-panel { display: flex; align-items: center; justify-content: space-between; gap: 20px; margin-bottom: 18px; padding: 20px 24px; color: #fff; background: #1749c8; }
    .score-panel p { margin: 0; }
    .score { color: #fff; font-size: 24px; font-weight: 800; white-space: nowrap; }
    .stars { color: #ffe394; letter-spacing: 0; }
    .case-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
    .case { overflow: hidden; border: 1px solid var(--line); background: #fff; }
    .case img { display: block; width: 100%; aspect-ratio: 16 / 8; object-fit: cover; }
    .case-copy { padding: 18px 20px; }
    .case-copy p { margin: 0; color: var(--muted); font-size: 14px; }
    .square-case { display: grid; grid-template-columns: 150px 1fr; align-items: center; gap: 20px; margin-top: 18px; padding: 16px; border: 1px solid var(--line); background: #fff; }
    .square-case img { width: 150px; aspect-ratio: 1; object-fit: cover; }
    .reviews { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
    .review { padding: 18px; border-left: 2px solid var(--cyan); background: #f1f5fa; }
    .review p { margin: 0 0 12px; color: #33465d; font-size: 14px; }
    .review strong { color: #52657b; font-size: 12px; }
    .faq-list { border-top: 1px solid var(--line); }
    .faq-item { border-bottom: 1px solid var(--line); }
    .faq-item summary { position: relative; padding: 17px 34px 17px 0; cursor: pointer; list-style: none; font-weight: 700; }
    .faq-item summary::-webkit-details-marker { display: none; }
    .faq-item summary::after { content: "+"; position: absolute; right: 4px; top: 12px; color: var(--blue); font-size: 22px; }
    .faq-item[open] summary::after { content: "−"; }
    .faq-item p { max-width: 850px; margin: 0; padding: 0 30px 17px 0; color: var(--muted); font-size: 14px; }
    .article-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
    .article-list a { display: block; padding: 17px; border: 1px solid var(--line); color: var(--blue); background: #fff; }
    .article-list a:hover { border-color: var(--blue); }
    .form-layout { display: grid; grid-template-columns: .8fr 1.2fr; gap: 42px; align-items: start; }
    .contact-details p { color: var(--muted); }
    .contact-details a { color: var(--blue); }
    .contact-qr { width: 132px; padding: 6px; border: 1px solid var(--line); background: #fff; }
    .contact-qr img { display: block; width: 100%; }
    form { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
    .field { display: grid; gap: 6px; }
    .field-wide { grid-column: 1 / -1; }
    label { color: #3c4f66; font-size: 13px; font-weight: 700; }
    input, select, textarea { width: 100%; padding: 11px 12px; border: 1px solid #cbd6e3; border-radius: 3px; color: var(--ink); background: #fff; }
    input:focus, select:focus, textarea:focus { outline: 2px solid #b3d8fa; border-color: var(--blue); }
    textarea { min-height: 110px; resize: vertical; }
    .form-note { grid-column: 1 / -1; margin: 0; color: var(--muted); font-size: 12px; }
    .footer { padding: 28px 0; color: #31445b; background: #e8eef6; border-top: 1px solid #d6e0eb; }
    .footer-row { display: flex; flex-wrap: wrap; align-items: flex-start; justify-content: space-between; gap: 20px; }
    .footer p { margin: 0; font-size: 13px; }
    .footer-links { display: flex; flex-wrap: wrap; gap: 8px 16px; font-size: 13px; }
    .footer-links a { color: #294f91; }
    .float-tools { position: fixed; z-index: 15; right: 16px; bottom: 18px; display: grid; gap: 8px; }
    .float-tools a, .float-tools button { display: grid; place-items: center; min-width: 44px; min-height: 44px; padding: 7px 10px; border: 1px solid #cbd8e8; border-radius: 4px; color: #143d9f; background: #fff; box-shadow: 0 4px 15px rgba(20,45,80,.12); font-size: 12px; cursor: pointer; }
    .reveal { opacity: 0; transform: translateY(12px); transition: opacity .55s, transform .55s; }
    .reveal.is-visible { opacity: 1; transform: translateY(0); }
    @media (max-width: 980px) {
      .menu-toggle { display: inline-flex; }
      .header-row { flex-wrap: wrap; padding: 12px 0; }
      .nav-links { display: none; width: 100%; justify-content: flex-start; padding: 8px 0 2px; border-top: 1px solid var(--line); }
      .nav-links.is-open { display: flex; }
      .nav-links a { padding: 8px 10px; }
    }
    @media (max-width: 720px) {
      .container { width: min(var(--container), calc(100% - 28px)); }
      .hero-inner { padding: 58px 0 42px; }
      .hero-inner::after { right: -150px; top: 80px; }
      .hero-copy > p:not(.eyebrow) { font-size: 15px; }
      .metrics { grid-template-columns: repeat(2, 1fr); }
      .metric:nth-child(2) { border-right: 0; }
      .metric:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
      .section { padding: 48px 0; }
      h2 { font-size: 25px; }
      .intro-grid, .form-layout { grid-template-columns: 1fr; gap: 22px; }
      .service-grid, .industry-grid { grid-template-columns: repeat(2, 1fr); }
      .steps { grid-template-columns: repeat(2, 1fr); }
      .case-grid, .reviews { grid-template-columns: 1fr; }
      .article-list { grid-template-columns: 1fr; }
      .score-panel { align-items: flex-start; flex-direction: column; }
    }
    @media (max-width: 460px) {
      .service-grid, .industry-grid, .steps, form { grid-template-columns: 1fr; }
      .field-wide, .form-note { grid-column: auto; }
      .square-case { grid-template-columns: 92px 1fr; gap: 13px; }
      .square-case img { width: 92px; }
      .nav-links a { font-size: 12px; }
      .brand { font-size: 16px; }
    }
    @media (prefers-reduced-motion: reduce) {
      *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; }
      .reveal { opacity: 1; transform: none; }
    }