:root {
      color-scheme: light;
      --ink: #18243a;
      --muted: #58677e;
      --line: #dce4ef;
      --paper: #f7f9fc;
      --white: #fff;
      --blue: #2357ed;
      --cyan: #00a9c7;
      --pink: #ed4d91;
      --lime: #d8f65e;
      --navy: #111c34;
      --max: 1160px;
    }
    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; scroll-padding-top: 88px; }
    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; }
    .container { width: min(var(--max), calc(100% - 40px)); margin-inline: auto; }
    .site-header {
      position: sticky; top: 0; z-index: 20;
      background: rgba(247,249,252,.94);
      border-bottom: 1px solid rgba(220,228,239,.9);
      backdrop-filter: blur(14px);
    }
    .nav-row { min-height: 74px; display: flex; align-items: center; justify-content: space-between; gap: 22px; }
    .brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; flex: 0 0 auto; }
    .brand img { width: 42px; height: 42px; 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; flex-wrap: wrap; }
    .nav-links a { padding: 9px 10px; color: #445269; font-size: 13px; text-decoration: none; transition: color .2s ease; }
    .nav-links a:hover { color: var(--blue); }
    .nav-cta, .button {
      display: inline-flex; align-items: center; justify-content: center; gap: 8px;
      border: 0; border-radius: 5px; background: var(--blue); color: #fff;
      font-weight: 700; text-decoration: none; padding: 12px 18px;
      box-shadow: 0 8px 18px rgba(35,87,237,.18);
      transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
    }
    .nav-cta { white-space: nowrap; padding: 10px 15px; font-size: 13px; }
    .button:hover, .nav-cta:hover { transform: translateY(-2px); box-shadow: 0 12px 24px rgba(35,87,237,.24); }
    .button.secondary { color: var(--ink); background: #fff; border: 1px solid var(--line); box-shadow: none; }
    .menu-toggle { display: none; color: var(--ink); border: 1px solid var(--line); background: #fff; border-radius: 5px; width: 42px; height: 42px; font-size: 20px; }
    main { overflow: hidden; }
    .hero {
      position: relative; isolation: isolate; overflow: hidden;
      background:
        linear-gradient(112deg, #f4f7ff 0%, #edfaff 52%, #fff4f8 100%);
      border-bottom: 1px solid #e1e8f2;
    }
    .hero::before {
      content: ""; position: absolute; z-index: -1; inset: 0;
      background-image: linear-gradient(rgba(35,87,237,.055) 1px, transparent 1px), linear-gradient(90deg, rgba(35,87,237,.055) 1px, transparent 1px);
      background-size: 42px 42px;
      mask-image: linear-gradient(90deg, #000, transparent 92%);
    }
    .hero-inner { padding-block: 76px 58px; }
    .hero-layout { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(280px, .85fr); gap: 50px; align-items: center; }
    .eyebrow { display: inline-flex; align-items: center; gap: 9px; color: #3152a5; font-size: 12px; font-weight: 800; letter-spacing: 1px; text-transform: uppercase; }
    .eyebrow::before { content: ""; width: 22px; height: 2px; background: var(--pink); }
    h1 { max-width: 680px; margin: 16px 0 18px; font-size: clamp(38px, 5vw, 64px); line-height: 1.12; letter-spacing: 0; }
    .hero h1 em { color: var(--blue); font-style: normal; }
    .hero-copy { max-width: 610px; color: #53627a; font-size: 17px; margin: 0; }
    .hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
    .hero-note { margin-top: 20px; font-size: 12px; color: #5e6c80; }
    .hero-note strong { color: var(--ink); }
    .hero-console { padding: 22px 0 22px 26px; border-left: 1px solid #cad6e7; }
    .console-head { display: flex; align-items: center; justify-content: space-between; padding-bottom: 15px; border-bottom: 1px solid #cfdae9; font-size: 12px; color: #50617a; }
    .live-mark { display: inline-flex; align-items: center; gap: 7px; color: #147356; font-weight: 700; }
    .live-mark::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: #29bd85; box-shadow: 0 0 0 4px rgba(41,189,133,.12); }
    .console-main { padding: 24px 0 20px; }
    .console-main h2 { margin: 0 0 9px; font-size: 20px; }
    .console-main p { margin: 0; color: var(--muted); font-size: 13px; }
    .model-cloud { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; }
    .model-cloud span { padding: 6px 9px; color: #33425a; border: 1px solid #d4deec; background: rgba(255,255,255,.72); border-radius: 3px; font-size: 11px; }
    .console-foot { display: flex; gap: 24px; padding-top: 17px; border-top: 1px solid #cfdae9; }
    .console-foot strong { display: block; color: var(--blue); font-size: 18px; }
    .console-foot span { color: #647188; font-size: 11px; }
    .metrics { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; padding-block: 22px; }
    .metric { padding: 5px 22px; border-left: 1px solid var(--line); }
    .metric:first-child { border-left: 0; padding-left: 0; }
    .metric strong { display: block; font-size: 19px; }
    .metric span { color: var(--muted); font-size: 12px; }
    .section { padding-block: 76px; }
    .section.alt { background: #eef3fa; border-block: 1px solid #e1e8f1; }
    .section.dark { color: #f2f5fb; background: var(--navy); }
    .section-head { max-width: 720px; margin-bottom: 32px; }
    .section-kicker { color: #3157cc; font-size: 12px; font-weight: 800; letter-spacing: 1.2px; }
    .dark .section-kicker { color: #a8f2f3; }
    h2 { margin: 8px 0 10px; font-size: clamp(27px, 3.2vw, 38px); line-height: 1.2; letter-spacing: 0; }
    .section-head p { margin: 0; color: var(--muted); }
    .dark .section-head p { color: #bdc8dc; }
    .intro-grid { display: grid; grid-template-columns: 1.05fr .95fr; align-items: start; gap: 48px; }
    .intro-copy { font-size: 16px; color: #4c5b72; }
    .intro-copy p { margin: 0 0 15px; }
    .intro-points { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0 22px; border-top: 1px solid var(--line); }
    .intro-point { padding: 15px 0; border-bottom: 1px solid var(--line); }
    .intro-point strong { display: block; font-size: 14px; }
    .intro-point span { color: var(--muted); font-size: 12px; }
    .service-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
    .service-item { min-width: 0; padding: 20px; background: #fff; border: 1px solid #dbe3ee; border-top: 3px solid var(--accent, var(--blue)); transition: transform .22s ease, box-shadow .22s ease; }
    .service-item:hover { transform: translateY(-4px); box-shadow: 0 12px 26px rgba(28,48,86,.09); }
    .service-item h3 { margin: 0 0 7px; font-size: 16px; }
    .service-item p { margin: 0; color: var(--muted); font-size: 13px; }
    .service-item small { display: block; margin-top: 12px; color: #3157cc; font-weight: 700; font-size: 11px; }
    .workflow { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; border-top: 1px solid #30405e; border-bottom: 1px solid #30405e; }
    .step { position: relative; padding: 24px 22px 25px 0; }
    .step + .step { padding-left: 22px; border-left: 1px solid #30405e; }
    .step-number { color: #a8f2f3; font-size: 12px; font-weight: 800; }
    .step h3 { margin: 9px 0 6px; font-size: 17px; }
    .step p { margin: 0; color: #bdc8dc; font-size: 13px; }
    .solutions { display: grid; grid-template-columns: 1fr 1fr; gap: 34px; align-items: start; }
    .solution-list { list-style: none; padding: 0; margin: 0; border-top: 1px solid var(--line); }
    .solution-list li { padding: 14px 0; border-bottom: 1px solid var(--line); }
    .solution-list strong { display: block; font-size: 14px; }
    .solution-list span { color: var(--muted); font-size: 12px; }
    .solution-aside { padding: 22px 24px; background: #e8f7f5; border-left: 4px solid #12a890; }
    .solution-aside h3 { margin: 0 0 9px; font-size: 18px; }
    .solution-aside p { margin: 0; color: #445d66; font-size: 13px; }
    .solution-aside .button { margin-top: 16px; }
    .network { display: grid; grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr); align-items: start; gap: 44px; }
    .network p { margin: 0 0 12px; color: #bdc8dc; }
    .network .model-cloud span { color: #e5ebf6; background: #1a2945; border-color: #354562; }
    .network-details { display: grid; grid-template-columns: 1fr 1fr; gap: 0 20px; border-top: 1px solid #30405e; }
    .network-details div { padding: 15px 0; border-bottom: 1px solid #30405e; }
    .network-details strong { display: block; font-size: 14px; }
    .network-details span { color: #bdc8dc; font-size: 12px; }
    .case-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
    .case { background: #fff; border: 1px solid var(--line); }
    .case .media { aspect-ratio: 16 / 9; overflow: hidden; background: #e9eef5; }
    .case img { display: block; width: 100%; height: 100%; object-fit: cover; transition: transform .45s ease; }
    .case:hover img { transform: scale(1.035); }
    .case-body { padding: 17px 18px 19px; }
    .case-body span { color: #3157cc; font-size: 11px; font-weight: 800; }
    .case-body h3 { margin: 5px 0; font-size: 16px; }
    .case-body p { margin: 0; color: var(--muted); font-size: 12px; }
    .review-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0 22px; border-top: 1px solid #34425f; }
    .review { padding: 19px 0 20px; border-bottom: 1px solid #34425f; }
    .review blockquote { margin: 0 0 14px; color: #e0e7f2; font-size: 13px; }
    .review cite { color: #a8f2f3; font-size: 12px; font-style: normal; font-weight: 700; }
    .comparison-wrap { overflow-x: auto; border: 1px solid var(--line); background: #fff; }
    .comparison { width: 100%; min-width: 720px; border-collapse: collapse; text-align: left; }
    .comparison th, .comparison td { padding: 13px 16px; border-bottom: 1px solid #e4eaf2; font-size: 13px; }
    .comparison thead th { background: #edf2fb; color: #273752; }
    .comparison tbody th { width: 22%; color: #33415a; font-weight: 700; }
    .comparison td { color: #53627a; }
    .comparison .highlight { color: #194acb; font-weight: 700; }
    .scoreline { display: flex; align-items: center; flex-wrap: wrap; gap: 12px 22px; margin: 0 0 18px; }
    .score { color: var(--blue); font-size: 28px; font-weight: 800; }
    .stars { color: #e49a14; letter-spacing: 2px; }
    .scoreline span:last-child { color: var(--muted); font-size: 13px; }
    .match-layout { display: grid; grid-template-columns: .8fr 1.2fr; gap: 45px; align-items: start; }
    .match-copy p { color: var(--muted); margin-top: 0; }
    .match-points { display: flex; flex-wrap: wrap; gap: 8px; }
    .match-points span { padding: 6px 10px; border: 1px solid #cbd6e5; color: #3c4d66; font-size: 11px; background: #fff; }
    .token-panel { display: grid; grid-template-columns: 1fr auto; gap: 24px; align-items: center; padding: 24px 0; border-block: 1px solid #34425f; }
    .token-panel h3 { margin: 0 0 5px; font-size: 18px; }
    .token-panel p { margin: 0; color: #bdc8dc; font-size: 13px; }
    .token-panel .button { white-space: nowrap; background: var(--lime); color: #19243b; box-shadow: none; }
    .faq-list { border-top: 1px solid var(--line); }
    .faq-item { border-bottom: 1px solid var(--line); }
    .faq-item summary { cursor: pointer; list-style: none; padding: 17px 32px 17px 0; position: relative; font-weight: 700; font-size: 14px; }
    .faq-item summary::-webkit-details-marker { display: none; }
    .faq-item summary::after { content: "+"; position: absolute; right: 4px; top: 13px; color: var(--blue); font-size: 21px; font-weight: 400; }
    .faq-item[open] summary::after { content: "−"; }
    .faq-item p { margin: -4px 32px 17px 0; color: var(--muted); font-size: 13px; }
    .articles { display: grid; grid-template-columns: repeat(5, 1fr); gap: 10px; }
    .article-link { min-height: 92px; display: flex; flex-direction: column; justify-content: space-between; padding: 15px; text-decoration: none; background: #fff; border: 1px solid var(--line); transition: border-color .2s ease, transform .2s ease; }
    .article-link:hover { border-color: var(--blue); transform: translateY(-2px); }
    .article-link strong { font-size: 13px; }
    .article-link span { color: #3157cc; font-size: 11px; }
    .contact-layout { display: grid; grid-template-columns: .78fr 1.22fr; gap: 48px; align-items: start; }
    .contact-info { border-top: 1px solid var(--line); }
    .contact-row { padding: 13px 0; border-bottom: 1px solid var(--line); }
    .contact-row strong { display: block; font-size: 13px; }
    .contact-row a, .contact-row span { color: var(--muted); font-size: 13px; text-decoration: none; overflow-wrap: anywhere; }
    .contact-row a:hover { color: var(--blue); }
    .contact-form { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
    .field { display: flex; flex-direction: column; gap: 6px; }
    .field.full { grid-column: 1 / -1; }
    .field label { font-size: 12px; font-weight: 700; }
    .field input, .field select, .field textarea { min-width: 0; width: 100%; padding: 11px 12px; border: 1px solid #cbd6e5; 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(35,87,237,.1); }
    .field textarea { min-height: 112px; resize: vertical; }
    .form-status { grid-column: 1 / -1; margin: 0; color: #365271; font-size: 12px; }
    .form-submit { justify-self: start; cursor: pointer; }
    .join-band { display: flex; justify-content: space-between; align-items: center; gap: 24px; padding: 24px 0; border-top: 1px solid var(--line); }
    .join-band h3 { margin: 0 0 4px; font-size: 18px; }
    .join-band p { margin: 0; color: var(--muted); font-size: 13px; }
    .tag-cloud { display: flex; flex-wrap: wrap; gap: 8px; }
    .tag-cloud span { padding: 6px 10px; background: #eaf0f8; color: #43536b; font-size: 11px; }
    .footer { color: #dce4f1; background: #111c34; }
    .footer-main { display: grid; grid-template-columns: 1.2fr .8fr; gap: 40px; padding-block: 30px; }
    .footer-brand { display: flex; align-items: center; gap: 10px; font-weight: 800; color: #fff; }
    .footer-brand img { width: 34px; height: 34px; object-fit: contain; }
    .footer p { margin: 9px 0 0; color: #b8c4d7; font-size: 12px; }
    .footer-links { display: flex; justify-content: flex-end; align-content: start; flex-wrap: wrap; gap: 8px 17px; }
    .footer-links a { color: #dce4f1; font-size: 12px; text-decoration: none; }
    .footer-links a:hover { color: #a8f2f3; }
    .footer-bottom { padding-block: 12px; border-top: 1px solid #30405e; color: #b8c4d7; font-size: 11px; }
    .float-tools { position: fixed; z-index: 15; right: 16px; bottom: 18px; display: grid; gap: 8px; }
    .float-tools a, .float-tools button { width: 44px; height: 44px; display: grid; place-items: center; border: 1px solid #d5dfeb; border-radius: 4px; color: #25344c; background: #fff; box-shadow: 0 4px 14px rgba(17,28,52,.12); text-decoration: none; cursor: pointer; font-size: 11px; font-weight: 800; }
    .float-tools button { display: none; }
    .reveal { opacity: 0; transform: translateY(14px); transition: opacity .55s ease, transform .55s ease; }
    .reveal.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: 920px) {
      .nav-row { gap: 12px; }
      .menu-toggle { display: inline-grid; place-items: center; margin-left: auto; }
      .nav-links { display: none; position: absolute; top: 73px; left: 0; right: 0; padding: 10px 20px 16px; background: #f7f9fc; border-bottom: 1px solid var(--line); align-items: stretch; }
      .nav-links.open { display: grid; grid-template-columns: repeat(3, 1fr); }
      .nav-links a { padding: 9px 8px; }
      .hero-layout { gap: 28px; }
      .service-grid { grid-template-columns: repeat(2, 1fr); }
      .articles { grid-template-columns: repeat(3, 1fr); }
    }
    @media (max-width: 680px) {
      .container { width: min(var(--max), calc(100% - 32px)); }
      .nav-row { min-height: 66px; }
      .brand img { width: 36px; height: 36px; }
      .brand-name { font-size: 15px; }
      .nav-cta { padding: 9px 11px; font-size: 12px; }
      .nav-links { top: 65px; }
      .nav-links.open { grid-template-columns: repeat(2, 1fr); }
      .hero-inner { padding-block: 53px 35px; }
      .hero-layout, .intro-grid, .solutions, .network, .match-layout, .contact-layout { grid-template-columns: 1fr; gap: 27px; }
      .hero-console { padding: 17px 0 0; border-left: 0; border-top: 1px solid #cad6e7; }
      .hero-copy { font-size: 15px; }
      .metrics { grid-template-columns: repeat(2, 1fr); gap: 14px 0; }
      .metric:nth-child(3) { border-left: 0; padding-left: 0; }
      .section { padding-block: 54px; }
      .service-grid, .case-grid { grid-template-columns: 1fr 1fr; }
      .workflow { grid-template-columns: 1fr 1fr; }
      .step { padding: 18px 14px 18px 0; }
      .step + .step { padding-left: 14px; }
      .step:nth-child(3) { padding-left: 0; border-left: 0; border-top: 1px solid #30405e; }
      .step:nth-child(4) { border-top: 1px solid #30405e; }
      .review-grid { grid-template-columns: 1fr 1fr; gap: 0 16px; }
      .articles { grid-template-columns: 1fr 1fr; }
      .token-panel { grid-template-columns: 1fr; }
      .contact-form { grid-template-columns: 1fr; }
      .field.full, .form-status { grid-column: auto; }
      .join-band { align-items: flex-start; flex-direction: column; }
      .footer-main { grid-template-columns: 1fr; gap: 18px; }
      .footer-links { justify-content: flex-start; }
      .float-tools { right: 10px; bottom: 12px; }
      .float-tools a, .float-tools button { width: 40px; height: 40px; }
    }
    @media (max-width: 420px) {
      .nav-cta { display: none; }
      .hero-actions .button { width: 100%; }
      .service-grid, .case-grid, .review-grid, .network-details { grid-template-columns: 1fr; }
      .intro-points { grid-template-columns: 1fr; }
      .articles { grid-template-columns: 1fr 1fr; }
    }