:root {
      color-scheme: light;
      --ink: #14213d;
      --muted: #5b6880;
      --blue: #1457d9;
      --blue-dark: #0d3d9f;
      --cyan: #1aa6bd;
      --line: #dce5f3;
      --paper: #f5f8ff;
      --white: #fff;
      --green: #14866d;
      --container: 1160px;
    }

    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; scroll-padding-top: 82px; }
    body {
      margin: 0;
      background: var(--paper);
      color: var(--ink);
      font-family: Inter, "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
      line-height: 1.65;
    }
    a { color: inherit; }
    img { max-width: 100%; height: auto; }
    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;
      top: 0;
      z-index: 20;
      background: rgba(255,255,255,.96);
      border-bottom: 1px solid var(--line);
      backdrop-filter: blur(14px);
    }
    .header-inner {
      min-height: 72px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 22px;
    }
    .brand {
      display: inline-flex;
      align-items: center;
      gap: 11px;
      flex: 0 0 auto;
      color: var(--ink);
      text-decoration: none;
      font-weight: 800;
    }
    .brand img { width: 42px; }
    .brand span { line-height: 1.2; }
    .brand small {
      display: block;
      margin-top: 4px;
      color: var(--muted);
      font-size: 11px;
      font-weight: 600;
    }
    .nav-area { display: flex; align-items: center; gap: 20px; }
    .nav-links {
      display: flex;
      align-items: center;
      justify-content: flex-end;
      gap: 0;
    }
    .nav-links a {
      padding: 10px 9px;
      color: #36445d;
      font-size: 13px;
      text-decoration: none;
      white-space: nowrap;
      transition: color .2s ease;
    }
    .nav-links a:hover, .nav-links a:focus-visible { color: var(--blue); }
    .button {
      min-height: 46px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 9px;
      padding: 0 20px;
      border: 1px solid transparent;
      border-radius: 7px;
      background: var(--blue);
      color: #fff;
      font-weight: 700;
      text-decoration: none;
      cursor: pointer;
      transition: background .2s ease, transform .2s ease, box-shadow .2s ease;
    }
    .button:hover { transform: translateY(-2px); background: var(--blue-dark); box-shadow: 0 9px 20px rgba(20,87,217,.19); }
    .button-outline { border-color: #bed0ef; background: #fff; color: var(--blue-dark); }
    .button-outline:hover { background: #edf4ff; color: var(--blue-dark); }
    .menu-toggle { display: none; }

    .hero {
      position: relative;
      overflow: hidden;
      background: #eaf2ff;
      border-bottom: 1px solid #d6e3f8;
    }
    .hero::before {
      position: absolute;
      inset: 0;
      content: "";
      background-image: linear-gradient(rgba(20,87,217,.045) 1px, transparent 1px), linear-gradient(90deg, rgba(20,87,217,.045) 1px, transparent 1px);
      background-size: 38px 38px;
      mask-image: linear-gradient(to right, #000, transparent 88%);
      pointer-events: none;
    }
    .hero-inner {
      position: relative;
      display: grid;
      grid-template-columns: minmax(0, 1.15fr) minmax(280px, .85fr);
      align-items: center;
      gap: 48px;
      padding-block: 72px 48px;
    }
    .hero-copy { max-width: 680px; }
    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 9px;
      color: var(--blue-dark);
      font-size: 13px;
      font-weight: 800;
      letter-spacing: 0;
    }
    .eyebrow::before { width: 22px; height: 2px; background: var(--cyan); content: ""; }
    h1 {
      max-width: 680px;
      margin: 18px 0 18px;
      font-size: clamp(38px, 5vw, 62px);
      line-height: 1.1;
      letter-spacing: 0;
    }
    .hero-copy p { max-width: 620px; margin: 0; color: #42516c; font-size: 17px; }
    .hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
    .hero-points { display: flex; flex-wrap: wrap; gap: 10px 22px; margin: 23px 0 0; padding: 0; list-style: none; color: #41516c; font-size: 13px; }
    .hero-points li::before { margin-right: 8px; color: var(--green); content: "✓"; font-weight: 900; }
    .hero-console {
      padding: 22px;
      border: 1px solid #c8d9f4;
      border-radius: 10px;
      background: rgba(255,255,255,.8);
      box-shadow: 0 18px 46px rgba(25,68,132,.1);
      animation: enter-up .65s both;
    }
    .console-top { display: flex; justify-content: space-between; gap: 12px; align-items: center; padding-bottom: 15px; border-bottom: 1px solid var(--line); }
    .console-top strong { font-size: 15px; }
    .live-label { color: var(--green); font-size: 12px; font-weight: 700; }
    .live-label::before { display: inline-block; width: 7px; height: 7px; margin-right: 7px; border-radius: 50%; background: #32b38d; content: ""; }
    .console-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 16px; }
    .console-item { min-height: 80px; padding: 14px; border: 1px solid #e0e9f6; border-radius: 6px; background: #f8faff; }
    .console-item b { display: block; color: var(--blue-dark); font-size: 14px; }
    .console-item span { display: block; margin-top: 5px; color: var(--muted); font-size: 12px; }
    .hero-stats {
      position: relative;
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 0;
      padding: 20px 0 24px;
      border-top: 1px solid #d5e1f3;
    }
    .stat { padding: 5px 20px; border-right: 1px solid #d5e1f3; }
    .stat:first-child { padding-left: 0; }
    .stat:last-child { border-right: 0; }
    .stat strong { display: block; color: var(--blue-dark); font-size: 20px; }
    .stat span { color: var(--muted); font-size: 12px; }

    .section { padding-block: 70px; }
    .section-white { background: #fff; border-block: 1px solid #e3eaf5; }
    .section-heading { max-width: 730px; margin: 0 0 30px; }
    .section-heading h2 { margin: 8px 0 10px; font-size: clamp(27px, 3.3vw, 38px); line-height: 1.2; letter-spacing: 0; }
    .section-heading p { margin: 0; color: var(--muted); }
    .section-kicker { color: var(--blue); font-size: 12px; font-weight: 800; }
    .intro-layout { display: grid; grid-template-columns: .92fr 1.08fr; gap: 45px; align-items: start; }
    .intro-copy p { margin: 0 0 16px; color: #45536b; }
    .intro-copy p:last-child { margin-bottom: 0; }
    .model-cloud { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 22px; }
    .model-cloud span { padding: 6px 10px; border: 1px solid #ccdaef; border-radius: 4px; background: #f8faff; color: #324769; font-size: 12px; }
    .capability-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0 22px; margin: 0; padding: 0; list-style: none; }
    .capability-list li { padding: 15px 0; border-bottom: 1px solid #dce5f3; }
    .capability-list strong { display: block; font-size: 15px; }
    .capability-list span { display: block; margin-top: 4px; color: var(--muted); font-size: 13px; }

    .product-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px 18px; }
    .product-item {
      min-height: 116px;
      padding: 17px 17px 16px;
      border-top: 2px solid #2c6ce0;
      background: #fff;
      box-shadow: 0 4px 14px rgba(29,66,120,.045);
      transition: transform .2s ease, box-shadow .2s ease;
    }
    .product-item:hover { transform: translateY(-3px); box-shadow: 0 10px 24px rgba(29,66,120,.1); }
    .product-item h3 { margin: 0 0 7px; font-size: 16px; }
    .product-item p { margin: 0; color: var(--muted); font-size: 13px; }
    .catalog-note { margin: 22px 0 0; padding: 14px 17px; border-left: 3px solid var(--cyan); background: #eaf7f9; color: #31505f; font-size: 13px; }
    .two-column { display: grid; grid-template-columns: 1fr 1fr; gap: 44px; align-items: start; }
    .workflow { display: grid; gap: 0; margin: 0; padding: 0; list-style: none; counter-reset: step; }
    .workflow li { position: relative; padding: 0 0 21px 52px; counter-increment: step; }
    .workflow li::before { position: absolute; left: 0; top: 0; display: grid; place-items: center; width: 32px; height: 32px; border: 1px solid #9bb8e9; border-radius: 50%; background: #fff; color: var(--blue-dark); content: counter(step, decimal-leading-zero); font-size: 11px; font-weight: 800; }
    .workflow li:not(:last-child)::after { position: absolute; top: 34px; bottom: 0; left: 15px; width: 1px; background: #cddaf0; content: ""; }
    .workflow strong { display: block; font-size: 15px; }
    .workflow span { color: var(--muted); font-size: 13px; }
    .use-case-band { padding: 24px; border-left: 4px solid var(--cyan); background: #eaf7f9; }
    .use-case-band h3 { margin: 0 0 10px; font-size: 18px; }
    .use-case-band p { margin: 0; color: #42566c; font-size: 14px; }
    .industry-list { display: flex; flex-wrap: wrap; gap: 9px; margin-top: 18px; }
    .industry-list span { padding: 8px 11px; border: 1px solid #cbd9ed; background: #fff; color: #344966; font-size: 12px; }
    .service-network { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
    .network-item { padding: 19px 0; border-top: 2px solid var(--blue); }
    .network-item h3 { margin: 0 0 6px; font-size: 16px; }
    .network-item p { margin: 0; color: var(--muted); font-size: 13px; }

    .case-grid { display: grid; grid-template-columns: 1.2fr .8fr; gap: 26px; align-items: start; }
    .case-feature { overflow: hidden; border: 1px solid var(--line); background: #fff; }
    .case-feature img { display: block; width: 100%; aspect-ratio: 16 / 8; object-fit: cover; }
    .case-caption { padding: 17px 19px; }
    .case-caption h3 { margin: 0 0 6px; font-size: 18px; }
    .case-caption p { margin: 0; color: var(--muted); font-size: 13px; }
    .case-side { display: grid; gap: 14px; }
    .case-side img { display: block; width: 100%; aspect-ratio: 4 / 3; object-fit: cover; border: 1px solid var(--line); background: #fff; }
    .case-side p { margin: 0; color: var(--muted); font-size: 13px; }

    .score-row { display: flex; flex-wrap: wrap; align-items: center; gap: 16px; margin-bottom: 20px; }
    .score { display: inline-flex; align-items: baseline; gap: 6px; padding: 12px 16px; border: 1px solid #bad0f1; background: #fff; color: var(--blue-dark); }
    .score strong { font-size: 29px; line-height: 1; }
    .stars { color: #db8a16; font-size: 19px; letter-spacing: 0; }
    .table-wrap { overflow-x: auto; border: 1px solid var(--line); background: #fff; }
    .comparison { width: 100%; min-width: 700px; border-collapse: collapse; text-align: left; }
    .comparison th, .comparison td { padding: 13px 15px; border-bottom: 1px solid #e4eaf4; vertical-align: top; }
    .comparison th { background: #eaf1fc; color: #233a5e; font-size: 13px; }
    .comparison td { color: #46546b; font-size: 13px; }
    .comparison td:nth-child(2) { color: #134dac; font-weight: 700; }
    .comparison tr:last-child td { border-bottom: 0; }
    .review-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 15px; }
    .review { padding: 18px; border-left: 2px solid #2f72df; background: #fff; }
    .review p { margin: 0 0 15px; color: #3f4e65; font-size: 14px; }
    .review strong { display: block; font-size: 13px; }
    .review span { color: var(--muted); font-size: 12px; }

    .form-layout { display: grid; grid-template-columns: .8fr 1.2fr; gap: 50px; align-items: start; }
    .contact-copy p { color: var(--muted); }
    .contact-list { display: grid; gap: 9px; margin-top: 20px; color: #3c4c65; font-size: 14px; }
    .contact-list a { color: var(--blue-dark); text-decoration-thickness: 1px; text-underline-offset: 3px; }
    .qr-wrap { display: flex; align-items: center; gap: 16px; margin-top: 22px; }
    .qr-wrap img { width: 108px; border: 1px solid var(--line); background: #fff; }
    .qr-wrap span { color: var(--muted); font-size: 13px; }
    .contact-form { display: grid; grid-template-columns: 1fr 1fr; gap: 15px; padding: 22px; border: 1px solid var(--line); background: #fff; }
    .field { display: grid; gap: 6px; }
    .field-full { grid-column: 1 / -1; }
    .field label { color: #34445e; font-size: 13px; font-weight: 700; }
    .field input, .field select, .field textarea {
      width: 100%;
      min-height: 44px;
      padding: 10px 12px;
      border: 1px solid #cbd6e7;
      border-radius: 4px;
      outline: none;
      background: #fff;
      color: var(--ink);
    }
    .field textarea { min-height: 112px; resize: vertical; }
    .field input:focus, .field select:focus, .field textarea:focus { border-color: var(--blue); box-shadow: 0 0 0 3px rgba(20,87,217,.1); }
    .contact-form .button { justify-self: start; }
    .faq-list { max-width: 900px; border-top: 1px solid var(--line); }
    .faq-item { border-bottom: 1px solid var(--line); }
    .faq-item summary { position: relative; padding: 17px 38px 17px 0; cursor: pointer; font-weight: 700; list-style: none; }
    .faq-item summary::-webkit-details-marker { display: none; }
    .faq-item summary::after { position: absolute; right: 3px; top: 17px; color: var(--blue); content: "+"; font-size: 21px; line-height: 1; }
    .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: 12px; margin-top: 24px; }
    .article-links a { padding: 14px; border: 1px solid var(--line); background: #fff; color: var(--blue-dark); text-decoration: none; font-size: 13px; }
    .article-links a:hover { border-color: #9ebbe9; background: #f7faff; }
    .partner-links { display: flex; flex-wrap: wrap; gap: 11px 20px; margin-top: 23px; }
    .partner-links a { color: #335176; font-size: 13px; text-decoration-color: #9eacc1; text-underline-offset: 4px; }

    .site-footer { padding: 26px 0; background: #e8eef8; color: #30415b; border-top: 1px solid #d6dfed; }
    .footer-inner { display: flex; justify-content: space-between; align-items: center; gap: 20px; }
    .footer-inner p { margin: 0; font-size: 12px; }
    .footer-contact { display: flex; flex-wrap: wrap; gap: 8px 18px; font-size: 12px; }
    .footer-contact a { color: #244e91; text-decoration: none; }
    .floating-contact {
      position: fixed;
      right: 18px;
      bottom: 22px;
      z-index: 15;
      display: grid;
      gap: 8px;
    }
    .floating-contact a { min-width: 54px; padding: 10px 12px; border: 1px solid #b8cbed; background: #fff; color: var(--blue-dark); text-align: center; text-decoration: none; font-size: 12px; font-weight: 700; box-shadow: 0 5px 18px rgba(20,47,91,.1); }
    .floating-contact a:hover { background: #edf4ff; }
    .to-top { position: fixed; right: 19px; bottom: 105px; z-index: 14; display: none; width: 42px; height: 42px; border: 1px solid #b8cbed; background: #fff; color: var(--blue-dark); cursor: pointer; font-size: 20px; }
    .to-top.visible { display: block; }
    .reveal { opacity: 0; transform: translateY(14px); transition: opacity .5s ease, transform .5s ease; }
    .reveal.is-visible { opacity: 1; transform: translateY(0); }
    @keyframes enter-up { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: translateY(0); } }
    @media (prefers-reduced-motion: reduce) {
      *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; transition-duration: .01ms !important; }
      .reveal { opacity: 1; transform: none; }
    }
    @media (max-width: 1040px) {
      .nav-links { display: none; }
      .menu-toggle { display: inline-grid; place-items: center; width: 42px; height: 42px; border: 1px solid var(--line); border-radius: 5px; background: #fff; color: var(--ink); cursor: pointer; font-size: 20px; }
      .nav-area { gap: 10px; }
      .nav-links.open { position: absolute; top: 72px; left: 0; right: 0; display: grid; grid-template-columns: repeat(3, 1fr); padding: 12px 20px 17px; border-bottom: 1px solid var(--line); background: #fff; box-shadow: 0 12px 18px rgba(24,50,90,.08); }
      .nav-links a { padding: 10px; }
      .nav-links a:last-child { display: block; }
    }
    @media (max-width: 760px) {
      .container { width: min(var(--container), calc(100% - 30px)); }
      .header-inner { min-height: 66px; }
      .brand img { width: 36px; }
      .brand { font-size: 14px; }
      .brand small { font-size: 10px; }
      .nav-links.open { top: 66px; grid-template-columns: repeat(2, 1fr); }
      .header-cta { display: none; }
      .hero-inner { grid-template-columns: 1fr; gap: 28px; padding-block: 48px 28px; }
      h1 { font-size: 42px; }
      .hero-copy p { font-size: 15px; }
      .hero-stats { grid-template-columns: repeat(2, 1fr); gap: 12px 0; }
      .stat:nth-child(2) { border-right: 0; }
      .stat:nth-child(3) { padding-left: 0; }
      .section { padding-block: 52px; }
      .intro-layout, .two-column, .case-grid, .form-layout { grid-template-columns: 1fr; gap: 28px; }
      .product-grid { grid-template-columns: repeat(2, 1fr); }
      .service-network { grid-template-columns: repeat(2, 1fr); }
      .review-grid { grid-template-columns: repeat(2, 1fr); }
      .article-links { grid-template-columns: repeat(2, 1fr); }
      .footer-inner { align-items: flex-start; flex-direction: column; }
      .floating-contact { right: 10px; bottom: 12px; }
      .floating-contact a { min-width: 48px; padding: 9px; }
      .to-top { right: 13px; bottom: 89px; }
    }
    @media (max-width: 480px) {
      .hero-actions { align-items: stretch; flex-direction: column; }
      .hero-actions .button { width: 100%; }
      .console-grid, .product-grid, .capability-list, .service-network, .review-grid, .contact-form { grid-template-columns: 1fr; }
      .field-full { grid-column: auto; }
      .contact-form { padding: 17px; }
      .article-links { grid-template-columns: 1fr; }
      .stat { padding-inline: 12px; }
      .stat strong { font-size: 18px; }
      .hero-console { padding: 17px; }
      .case-side { grid-template-columns: 1fr; }
      .score-row { align-items: flex-start; flex-direction: column; }
    }