:root {
      color-scheme: light;
      --ink: #18243b;
      --muted: #5d6b80;
      --paper: #f8fbff;
      --white: #fff;
      --blue: #245cf4;
      --cyan: #00a9bf;
      --lime: #d7f247;
      --line: #dce5ef;
      --soft-blue: #eaf1ff;
      --soft-cyan: #e4f8f8;
      --shadow: 0 12px 32px rgba(26, 54, 102, .08);
      --container: 1160px;
    }
    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; scroll-padding-top: 90px; }
    body {
      margin: 0;
      color: var(--ink);
      background: var(--paper);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      line-height: 1.7;
    }
    a { color: inherit; text-decoration: none; }
    button, input, select, textarea { font: inherit; }
    button, a { -webkit-tap-highlight-color: transparent; }
    img { display: block; 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(248, 251, 255, .96); border-bottom: 1px solid rgba(220, 229, 239, .9); backdrop-filter: blur(12px); }
    .nav-bar { min-height: 74px; display: flex; align-items: center; justify-content: space-between; gap: 22px; }
    .brand { display: flex; flex: 0 0 auto; align-items: center; gap: 10px; }
    .brand img { width: 40px; height: 40px; object-fit: contain; }
    .brand-name { font-size: 17px; font-weight: 800; letter-spacing: 0; }
    .nav-links { display: flex; align-items: center; justify-content: flex-end; gap: 0; min-width: 0; }
    .nav-links a { padding: 9px 8px; color: #44536a; font-size: 13px; white-space: nowrap; border-radius: 5px; transition: color .2s, background .2s; }
    .nav-links a:hover { color: var(--blue); background: var(--soft-blue); }
    .nav-cta { color: #fff !important; background: var(--blue) !important; margin-left: 8px; padding-inline: 14px !important; }
    .menu-toggle { display: none; width: 42px; height: 42px; border: 1px solid var(--line); border-radius: 5px; background: #fff; color: var(--ink); cursor: pointer; }
    .hero { overflow: hidden; position: relative; padding: 68px 0 58px; background: #eff6ff; border-bottom: 1px solid #dbe8fb; }
    .hero::before, .hero::after { content: ""; position: absolute; pointer-events: none; }
    .hero::before { width: 440px; height: 440px; right: -100px; top: -250px; border: 1px solid rgba(36, 92, 244, .16); border-radius: 50%; box-shadow: 0 0 0 42px rgba(36, 92, 244, .035), 0 0 0 84px rgba(0, 169, 191, .035); }
    .hero::after { width: 250px; height: 250px; right: 8%; bottom: -180px; background: var(--lime); opacity: .45; transform: rotate(35deg); border-radius: 30px; }
    .hero-inner { position: relative; z-index: 1; display: grid; grid-template-columns: minmax(0, 1fr) minmax(230px, 310px); align-items: center; gap: 55px; }
    .eyebrow { display: inline-flex; align-items: center; gap: 9px; color: #3155b6; font-weight: 750; font-size: 13px; letter-spacing: 0; }
    .eyebrow::before { content: ""; width: 24px; height: 3px; background: var(--cyan); }
    h1 { max-width: 720px; margin: 16px 0; font-size: clamp(38px, 5vw, 66px); line-height: 1.15; letter-spacing: 0; }
    .hero h1 span { color: var(--blue); }
    .hero-copy { max-width: 660px; margin: 0; color: #50617a; font-size: 17px; }
    .hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
    .button { min-height: 48px; display: inline-flex; align-items: center; justify-content: center; gap: 9px; padding: 10px 20px; border: 1px solid transparent; border-radius: 5px; font-weight: 750; transition: transform .2s, box-shadow .2s, background .2s; }
    .button:hover { transform: translateY(-2px); box-shadow: 0 8px 18px rgba(36, 92, 244, .18); }
    .button-primary { color: #fff; background: var(--blue); }
    .button-secondary { color: var(--ink); background: #fff; border-color: #d5e0ee; }
    .hero-aside { position: relative; padding: 24px 0 24px 24px; border-left: 1px solid #cbd9eb; }
    .hero-aside strong { display: block; font-size: 22px; line-height: 1.4; }
    .hero-aside p { margin: 8px 0 18px; color: var(--muted); font-size: 14px; }
    .hero-aside .mini-link { color: var(--blue); font-size: 14px; font-weight: 750; }
    .hero-aside .mini-link:hover { text-decoration: underline; }
    .metrics { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--line); border-bottom: 1px solid var(--line); }
    .metric { padding: 20px 12px; background: #fff; text-align: center; }
    .metric strong { display: block; color: var(--blue); font-size: 23px; line-height: 1.2; }
    .metric span { color: var(--muted); font-size: 13px; }
    .section { padding: 76px 0; }
    .section-tint { background: #f0f6fb; border-block: 1px solid #e2eaf2; }
    .section-dark { color: #fff; background: #173153; }
    .section-head { max-width: 700px; margin-bottom: 34px; }
    .section-kicker { margin: 0 0 8px; color: var(--cyan); font-weight: 800; font-size: 12px; letter-spacing: 0; }
    h2 { margin: 0 0 12px; font-size: clamp(27px, 3vw, 39px); line-height: 1.25; letter-spacing: 0; }
    .section-head p { margin: 0; color: var(--muted); }
    .section-dark .section-head p { color: #d5dfec; }
    h3 { margin: 0 0 9px; font-size: 18px; line-height: 1.4; }
    .intro-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 42px; align-items: start; }
    .intro-copy { color: #4d5e74; }
    .intro-copy p { margin: 0 0 14px; }
    .capability-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px 20px; }
    .capability { padding: 15px 0 13px; border-top: 2px solid #b9d7e8; }
    .capability b { display: block; margin-bottom: 4px; color: #193b66; font-size: 15px; }
    .capability span { display: block; color: var(--muted); font-size: 13px; }
    .service-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
    .service-item { min-height: 146px; padding: 21px; background: #fff; border: 1px solid var(--line); border-top: 3px solid var(--cyan); transition: transform .2s, box-shadow .2s; }
    .service-item:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
    .service-item p { margin: 0; color: var(--muted); font-size: 14px; }
    .service-number { display: block; margin-bottom: 13px; color: #1499a8; font-size: 12px; font-weight: 800; }
    .wide-visual { display: grid; grid-template-columns: 1.1fr .9fr; align-items: stretch; gap: 18px; }
    .media-frame { overflow: hidden; background: #e9f0f7; }
    .media-frame img { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; }
    .visual-copy { padding: 21px 0; }
    .visual-copy p { color: var(--muted); }
    .visual-copy .button { margin-top: 10px; }
    .platform-tags { display: flex; flex-wrap: wrap; gap: 9px; margin-top: 26px; }
    .platform-tags span { padding: 6px 11px; border: 1px solid rgba(255,255,255,.28); color: #fff; border-radius: 3px; font-size: 13px; }
    .platform-note { margin: 17px 0 0; color: #d5dfec; font-size: 13px; }
    .industry-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0 22px; }
    .industry { padding: 17px 0; border-top: 1px solid var(--line); }
    .industry h3 { font-size: 16px; }
    .industry p { margin: 0; color: var(--muted); font-size: 13px; }
    .steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; counter-reset: step; }
    .step { position: relative; padding: 18px 18px 18px 0; border-top: 2px solid #9dc7d7; }
    .step::before { counter-increment: step; content: "0" counter(step); display: block; margin-bottom: 14px; color: var(--blue); font-size: 13px; font-weight: 850; }
    .step p { margin: 0; color: var(--muted); font-size: 14px; }
    .network-row { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; align-items: start; }
    .network-copy p { color: var(--muted); }
    .network-links { display: flex; flex-wrap: wrap; gap: 10px; }
    .network-links a { padding: 9px 13px; border: 1px solid var(--line); background: #fff; color: #3155b6; font-size: 13px; transition: border-color .2s, transform .2s; }
    .network-links a:hover { border-color: var(--blue); transform: translateY(-2px); }
    .case-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
    .case { display: grid; grid-template-columns: .9fr 1.1fr; align-items: center; gap: 20px; padding: 16px; border: 1px solid var(--line); background: #fff; }
    .case img { width: 100%; aspect-ratio: 1 / 1; object-fit: cover; }
    .case p { margin: 0; color: var(--muted); font-size: 14px; }
    .case-label { display: inline-block; margin-bottom: 8px; color: #158898; font-size: 12px; font-weight: 800; }
    .review-score { display: flex; align-items: center; justify-content: space-between; gap: 20px; margin-bottom: 23px; padding: 18px 21px; background: #eaf1ff; }
    .review-score strong { font-size: 23px; }
    .stars { color: #cc8c00; letter-spacing: 0; font-size: 20px; }
    .table-wrap { overflow-x: auto; border: 1px solid var(--line); background: #fff; }
    table { width: 100%; border-collapse: collapse; min-width: 680px; }
    th, td { padding: 14px 16px; text-align: left; border-bottom: 1px solid var(--line); }
    th { color: #193b66; background: #eff5fb; font-size: 13px; }
    td { color: #4f5e73; font-size: 14px; }
    tbody tr:last-child td { border-bottom: 0; }
    td:first-child { color: var(--ink); font-weight: 700; }
    .score-value { color: var(--blue); font-weight: 800; }
    .form-layout { display: grid; grid-template-columns: .75fr 1.25fr; gap: 45px; align-items: start; }
    .form-info p { color: #d3deec; }
    .contact-list { padding: 0; margin: 20px 0 0; list-style: none; }
    .contact-list li { padding: 8px 0; border-bottom: 1px solid rgba(255,255,255,.16); color: #fff; }
    .contact-list a { text-decoration: underline; text-underline-offset: 3px; }
    .form { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; padding: 22px; color: var(--ink); background: #fff; }
    .field { display: grid; gap: 6px; }
    .field-full { grid-column: 1 / -1; }
    .field label { font-size: 13px; font-weight: 700; }
    .field input, .field select, .field textarea { width: 100%; min-width: 0; padding: 11px 12px; border: 1px solid #cfd9e5; border-radius: 3px; color: var(--ink); background: #fff; outline: none; }
    .field input:focus, .field select:focus, .field textarea:focus { border-color: var(--blue); box-shadow: 0 0 0 3px rgba(36,92,244,.1); }
    .field textarea { min-height: 110px; resize: vertical; }
    .form .button { justify-self: start; cursor: pointer; }
    .faq-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0 28px; }
    details { padding: 16px 0; border-top: 1px solid var(--line); }
    summary { position: relative; padding-right: 25px; cursor: pointer; font-weight: 750; list-style: none; }
    summary::-webkit-details-marker { display: none; }
    summary::after { content: "+"; position: absolute; right: 2px; top: -3px; color: var(--blue); font-size: 22px; font-weight: 400; }
    details[open] summary::after { content: "−"; }
    details p { margin: 9px 0 0; color: var(--muted); font-size: 14px; }
    .quote-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
    .quote { padding: 19px; border-left: 3px solid var(--lime); background: rgba(255,255,255,.08); }
    .quote p { margin: 0 0 14px; color: #f1f5fb; font-size: 14px; }
    .quote strong { color: #fff; font-size: 13px; }
    .quote span { display: block; color: #c7d6e8; font-size: 12px; }
    .article-list { display: grid; grid-template-columns: repeat(5, 1fr); gap: 12px; }
    .article-list a { padding: 15px; border-top: 2px solid #a5c6d5; background: #fff; font-size: 14px; font-weight: 700; transition: color .2s, border-color .2s; }
    .article-list a:hover { color: var(--blue); border-color: var(--blue); }
    .knowledge-row { display: grid; grid-template-columns: 1fr 1fr; gap: 36px; }
    .knowledge-row p { margin: 0; color: var(--muted); }
    .knowledge-row a { color: var(--blue); font-weight: 750; text-decoration: underline; text-underline-offset: 3px; }
    .footer { padding: 30px 0; color: #33445d; background: #eaf1f7; border-top: 1px solid #d8e2eb; }
    .footer-inner { display: flex; align-items: center; justify-content: space-between; gap: 25px; }
    .footer-links { display: flex; flex-wrap: wrap; gap: 12px 18px; }
    .footer-links a { color: #33445d; font-size: 13px; }
    .footer-links a:hover { color: var(--blue); }
    .copyright { margin: 8px 0 0; color: #5d6b80; font-size: 12px; }
    .floating-contact { position: fixed; z-index: 15; right: 16px; bottom: 18px; display: grid; gap: 8px; }
    .floating-contact a { display: grid; place-items: center; width: 48px; height: 48px; color: #fff; background: var(--blue); border: 2px solid #fff; border-radius: 50%; box-shadow: 0 4px 14px rgba(20, 46, 90, .2); font-size: 12px; font-weight: 800; }
    .floating-contact a:first-child { color: var(--ink); background: var(--lime); }
    .reveal { opacity: 0; transform: translateY(12px); transition: opacity .55s ease, transform .55s ease; }
    .reveal.is-visible { opacity: 1; transform: none; }
    @media (max-width: 1050px) {
      .nav-links a { padding-inline: 6px; font-size: 12px; }
      .industry-grid { grid-template-columns: repeat(3, 1fr); }
    }
    @media (max-width: 820px) {
      .container { width: min(var(--container), calc(100% - 32px)); }
      .nav-bar { min-height: 66px; }
      .menu-toggle { display: grid; place-items: center; }
      .nav-links { display: none; position: absolute; top: 65px; left: 0; right: 0; padding: 10px 16px 16px; align-items: stretch; flex-direction: column; background: var(--paper); border-bottom: 1px solid var(--line); box-shadow: 0 12px 20px rgba(26,54,102,.08); }
      .nav-links.is-open { display: flex; }
      .nav-links a { padding: 10px 12px; font-size: 14px; }
      .nav-cta { margin: 5px 0 0; text-align: center; }
      .hero { padding: 54px 0 44px; }
      .hero-inner { grid-template-columns: 1fr; gap: 30px; }
      .hero-aside { max-width: 460px; padding: 17px 0 0; border-left: 0; border-top: 1px solid #cbd9eb; }
      .intro-grid, .wide-visual, .network-row, .form-layout { grid-template-columns: 1fr; gap: 25px; }
      .service-grid { grid-template-columns: repeat(2, 1fr); }
      .industry-grid { grid-template-columns: repeat(2, 1fr); }
      .steps { grid-template-columns: repeat(2, 1fr); column-gap: 22px; }
      .case-grid { grid-template-columns: 1fr; }
      .article-list { grid-template-columns: repeat(3, 1fr); }
      .section { padding: 60px 0; }
    }
    @media (max-width: 560px) {
      .hero { padding-top: 42px; }
      h1 { font-size: 40px; }
      .hero-copy { font-size: 15px; }
      .metrics { grid-template-columns: repeat(2, 1fr); }
      .metric { padding: 16px 8px; }
      .service-grid, .capability-list, .industry-grid, .steps, .faq-grid, .quote-grid, .knowledge-row { grid-template-columns: 1fr; }
      .service-item { min-height: auto; }
      .section { padding: 49px 0; }
      .case { grid-template-columns: 1fr; }
      .case img { aspect-ratio: 16 / 9; }
      .review-score { align-items: flex-start; flex-direction: column; gap: 4px; }
      .form { grid-template-columns: 1fr; padding: 17px; }
      .field-full { grid-column: auto; }
      .article-list { grid-template-columns: 1fr 1fr; }
      .footer-inner { align-items: flex-start; flex-direction: column; }
      .floating-contact { right: 10px; bottom: 12px; }
      .floating-contact a { width: 44px; height: 44px; }
    }
    @media (prefers-reduced-motion: reduce) {
      *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; transition-duration: .01ms !important; }
      .reveal { opacity: 1; transform: none; }
    }