:root {
      color-scheme: light;
      --ink: #172033;
      --muted: #5b6578;
      --line: #e4e8f0;
      --paper: #f7f8fc;
      --white: #fff;
      --blue: #2457e6;
      --blue-dark: #173eb4;
      --coral: #fa5c48;
      --lime: #c8f04a;
      --teal: #19a99a;
      --violet: #7253df;
      --shadow: 0 14px 38px rgba(29, 44, 83, .09);
      --container: 1180px;
    }
    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; scroll-padding-top: 84px; }
    body {
      margin: 0;
      background: var(--paper);
      color: var(--ink);
      font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
      line-height: 1.65;
    }
    a { color: inherit; }
    button, input, select, textarea { font: inherit; }
    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,.94);
      border-bottom: 1px solid rgba(228,232,240,.9);
      backdrop-filter: blur(14px);
    }
    .nav-shell {
      min-height: 72px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 20px;
    }
    .brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; flex: 0 0 auto; }
    .brand img { display: block; width: 42px; max-height: 42px; object-fit: contain; }
    .brand-name { font-size: 16px; font-weight: 800; letter-spacing: 0; }
    .nav-links {
      display: flex;
      align-items: center;
      justify-content: flex-end;
      flex-wrap: wrap;
      gap: 0;
      min-width: 0;
    }
    .nav-links a {
      padding: 9px 8px;
      color: #39445a;
      font-size: 12px;
      font-weight: 650;
      text-decoration: none;
      white-space: nowrap;
      border-radius: 5px;
      transition: color .2s ease, background .2s ease;
    }
    .nav-links a:hover { color: var(--blue); background: #eef2ff; }
    .nav-cta {
      margin-left: 6px;
      padding: 10px 15px !important;
      background: var(--blue);
      color: #fff !important;
    }
    .nav-cta:hover { background: var(--blue-dark) !important; }
    .menu-toggle {
      display: none;
      width: 42px;
      height: 42px;
      border: 1px solid var(--line);
      border-radius: 6px;
      background: #fff;
      color: var(--ink);
      cursor: pointer;
    }
    .hero {
      position: relative;
      overflow: hidden;
      color: #fff;
      background: #1d47cf;
      background-image: linear-gradient(118deg, #1e47cb 0%, #653be0 52%, #eb4d7b 100%);
    }
    .hero::before, .hero::after {
      position: absolute;
      content: "";
      pointer-events: none;
      border: 1px solid rgba(255,255,255,.2);
      border-radius: 50%;
    }
    .hero::before { width: 570px; height: 570px; right: -170px; top: -300px; }
    .hero::after { width: 420px; height: 420px; right: -88px; top: -220px; }
    .hero-inner {
      position: relative;
      z-index: 1;
      display: grid;
      grid-template-columns: minmax(0,1.15fr) minmax(280px,.85fr);
      gap: 52px;
      align-items: center;
      padding-top: 74px;
      padding-bottom: 70px;
    }
    .hero-copy { max-width: 690px; }
    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 9px;
      margin: 0 0 20px;
      color: #e7ecff;
      font-size: 13px;
      font-weight: 750;
      letter-spacing: 0;
    }
    .eyebrow::before { content: ""; width: 26px; height: 3px; background: var(--lime); }
    h1 { margin: 0; font-size: clamp(38px, 5vw, 66px); line-height: 1.12; letter-spacing: 0; }
    .hero-copy > p { max-width: 610px; margin: 21px 0 28px; color: #f0efff; font-size: 17px; }
    .hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
    .button {
      display: inline-flex;
      min-height: 46px;
      align-items: center;
      justify-content: center;
      gap: 9px;
      padding: 11px 18px;
      border: 1px solid transparent;
      border-radius: 5px;
      background: var(--blue);
      color: #fff;
      font-weight: 750;
      text-decoration: none;
      cursor: pointer;
      transition: transform .18s ease, box-shadow .18s ease, background .18s ease;
    }
    .button:hover { transform: translateY(-2px); box-shadow: 0 8px 20px rgba(18,32,83,.2); }
    .button-light { background: var(--lime); color: #172033; }
    .button-outline { border-color: rgba(255,255,255,.58); background: transparent; color: #fff; }
    .button-outline:hover { background: rgba(255,255,255,.12); }
    .hero-visual { position: relative; min-height: 280px; display: grid; place-items: center; }
    .metric-board {
      width: min(100%, 410px);
      padding: 24px;
      border: 1px solid rgba(255,255,255,.28);
      border-radius: 8px;
      background: rgba(21,31,93,.2);
      box-shadow: 0 24px 60px rgba(23,16,79,.2);
      backdrop-filter: blur(8px);
      animation: rise-in .7s ease both;
    }
    .metric-board-top { display: flex; justify-content: space-between; align-items: center; color: #eeedff; font-size: 13px; }
    .signal { width: 9px; height: 9px; border-radius: 50%; background: var(--lime); box-shadow: 0 0 0 5px rgba(200,240,74,.16); }
    .metric-score { margin: 22px 0 5px; font-size: 58px; line-height: 1; font-weight: 850; letter-spacing: 0; }
    .metric-score small { font-size: 20px; font-weight: 650; }
    .metric-board p { margin: 0; color: #e4e8ff; font-size: 13px; }
    .metric-bars { display: grid; gap: 12px; margin-top: 24px; }
    .metric-bar { display: grid; grid-template-columns: 82px 1fr 32px; gap: 9px; align-items: center; color: #f4f4ff; font-size: 12px; }
    .metric-bar-track { height: 6px; border-radius: 8px; background: rgba(255,255,255,.2); overflow: hidden; }
    .metric-bar-fill { height: 100%; border-radius: inherit; background: var(--lime); }
    .hero-bottom { background: rgba(14,25,88,.22); border-top: 1px solid rgba(255,255,255,.14); }
    .hero-stats { display: grid; grid-template-columns: repeat(4,1fr); }
    .hero-stat { padding: 16px 12px; border-right: 1px solid rgba(255,255,255,.18); }
    .hero-stat:last-child { border-right: 0; }
    .hero-stat strong { display: block; font-size: 16px; }
    .hero-stat span { color: #e3e7ff; font-size: 12px; }
    .section { padding: 72px 0; }
    .section-white { background: #fff; }
    .section-tint { background: #f0f3ff; }
    .section-head { max-width: 720px; margin-bottom: 34px; }
    .section-kicker { margin: 0 0 9px; color: var(--blue); font-size: 12px; font-weight: 850; text-transform: uppercase; }
    h2 { margin: 0; font-size: clamp(27px, 3vw, 39px); line-height: 1.2; letter-spacing: 0; }
    .section-head > p:last-child { margin: 13px 0 0; color: var(--muted); }
    h3 { margin: 0; font-size: 18px; line-height: 1.35; letter-spacing: 0; }
    .intro-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 52px; align-items: start; }
    .intro-copy p { color: var(--muted); margin: 0 0 15px; }
    .intro-points { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
    .point { padding: 17px 0; border-top: 2px solid var(--line); }
    .point strong { display: block; margin-bottom: 5px; font-size: 15px; }
    .point span { color: var(--muted); font-size: 13px; }
    .model-strip { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 22px; }
    .model-chip { padding: 7px 11px; border: 1px solid #dfe4ef; border-radius: 4px; background: #fff; color: #39445a; font-size: 12px; }
    .service-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 0 24px; }
    .service-item { position: relative; padding: 23px 0 21px; border-top: 1px solid var(--line); }
    .service-number { display: inline-block; margin-bottom: 12px; color: var(--coral); font-size: 12px; font-weight: 850; }
    .service-item p { margin: 8px 0 0; color: var(--muted); font-size: 13px; }
    .service-area { display: grid; grid-template-columns: repeat(3,1fr); gap: 0 26px; margin-top: 8px; }
    .workflows { display: grid; grid-template-columns: repeat(4,1fr); gap: 16px; counter-reset: flow; }
    .workflow { padding: 22px 18px; border-left: 3px solid var(--teal); background: #fff; }
    .workflow::before { counter-increment: flow; content: "0" counter(flow); display: block; margin-bottom: 15px; color: var(--teal); font-size: 12px; font-weight: 850; }
    .workflow p { margin: 8px 0 0; color: var(--muted); font-size: 13px; }
    .solution-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 24px; }
    .solution { padding: 22px 0; border-top: 3px solid var(--violet); }
    .solution:nth-child(2) { border-color: var(--coral); }
    .solution:nth-child(3) { border-color: var(--teal); }
    .solution p { margin: 9px 0 0; color: var(--muted); font-size: 14px; }
    .solution a { display: inline-block; margin-top: 15px; color: var(--blue); font-size: 13px; font-weight: 750; text-decoration: none; }
    .network { display: grid; grid-template-columns: 1fr 1fr; gap: 42px; align-items: center; }
    .network-copy p { color: var(--muted); }
    .network-tags { display: flex; flex-wrap: wrap; gap: 9px; margin-top: 20px; }
    .network-tags span { padding: 8px 12px; border-radius: 3px; background: #e6eaff; color: #243f9f; font-size: 13px; font-weight: 700; }
    .network-aside { padding: 24px; border-left: 4px solid var(--coral); background: #fff; }
    .network-aside p { margin: 8px 0 0; color: var(--muted); font-size: 14px; }
    .case-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 18px; }
    .case { overflow: hidden; border: 1px solid var(--line); background: #fff; }
    .case-image { aspect-ratio: 16 / 9; overflow: hidden; background: #e9ecf5; }
    .case-image img { display: block; width: 100%; height: 100%; object-fit: cover; transition: transform .35s ease; }
    .case:hover .case-image img { transform: scale(1.035); }
    .case-copy { padding: 17px; }
    .case-copy p { margin: 7px 0 0; color: var(--muted); font-size: 13px; }
    .evaluation { display: grid; grid-template-columns: 280px 1fr; gap: 34px; align-items: start; }
    .rating { padding: 24px; background: #183ba9; color: #fff; }
    .rating-label { color: #dbe3ff; font-size: 13px; }
    .rating-score { margin: 12px 0 0; font-size: 58px; font-weight: 850; line-height: 1; }
    .rating-score small { font-size: 18px; }
    .stars { margin-top: 10px; color: var(--lime); font-size: 22px; letter-spacing: 0; }
    .rating p { margin: 10px 0 0; color: #e1e7ff; font-size: 13px; }
    .table-wrap { overflow-x: auto; border: 1px solid var(--line); background: #fff; }
    table { width: 100%; min-width: 640px; border-collapse: collapse; text-align: left; }
    th, td { padding: 13px 15px; border-bottom: 1px solid var(--line); font-size: 13px; vertical-align: top; }
    th { background: #f0f3fb; color: #33405a; font-size: 12px; }
    tr:last-child td { border-bottom: 0; }
    td:first-child { font-weight: 750; }
    .positive { color: #087c68; font-weight: 750; }
    .reviews { display: grid; grid-template-columns: repeat(3,1fr); gap: 0 24px; }
    .review { padding: 20px 0; border-top: 1px solid var(--line); }
    .review p { margin: 0 0 15px; color: #364158; font-size: 14px; }
    .reviewer { display: flex; justify-content: space-between; gap: 12px; color: var(--muted); font-size: 12px; }
    .reviewer strong { color: var(--ink); font-size: 13px; }
    .match-layout { display: grid; grid-template-columns: .8fr 1.2fr; gap: 46px; align-items: start; }
    .match-aside { padding: 20px 0; border-top: 3px solid var(--coral); }
    .match-aside p { color: var(--muted); }
    .contact-details { display: grid; gap: 12px; margin-top: 18px; }
    .contact-details a { color: var(--blue); font-weight: 700; text-decoration: none; }
    .form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 15px; }
    .field { display: grid; gap: 6px; }
    .field-wide { grid-column: 1 / -1; }
    .field label { color: #39445a; font-size: 13px; font-weight: 700; }
    .field input, .field select, .field textarea {
      width: 100%;
      min-height: 44px;
      padding: 10px 12px;
      border: 1px solid #d9deea;
      border-radius: 4px;
      background: #fff;
      color: var(--ink);
      outline: none;
    }
    .field textarea { min-height: 116px; resize: vertical; }
    .field input:focus, .field select:focus, .field textarea:focus { border-color: var(--blue); box-shadow: 0 0 0 3px rgba(36,87,230,.12); }
    .form-note { margin: 10px 0 0; color: var(--muted); font-size: 12px; }
    .price-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 38px; align-items: center; }
    .price-copy p { color: var(--muted); }
    .price-callout { padding: 22px; border: 1px solid #dfe3f0; background: #fff; }
    .price-callout strong { display: block; margin-bottom: 7px; font-size: 17px; }
    .price-callout p { margin: 0; color: var(--muted); font-size: 13px; }
    .faq-list { border-top: 1px solid var(--line); }
    .faq-item { border-bottom: 1px solid var(--line); }
    .faq-item summary { position: relative; padding: 17px 38px 17px 0; color: var(--ink); font-weight: 750; cursor: pointer; list-style: none; }
    .faq-item summary::-webkit-details-marker { display: none; }
    .faq-item summary::after { position: absolute; right: 5px; top: 15px; content: "+"; color: var(--blue); font-size: 23px; font-weight: 500; }
    .faq-item[open] summary::after { content: "−"; }
    .faq-answer { max-width: 850px; padding: 0 25px 16px 0; color: var(--muted); font-size: 14px; }
    .article-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 0 22px; }
    .article { display: flex; justify-content: space-between; gap: 12px; padding: 15px 0; border-top: 1px solid var(--line); text-decoration: none; }
    .article span { color: #2c3850; font-weight: 700; }
    .article small { flex: 0 0 auto; color: var(--blue); }
    .knowledge-strip { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; }
    .knowledge-strip span { padding: 7px 10px; border: 1px solid #dfe4ef; border-radius: 3px; color: #4b566a; font-size: 12px; }
    .join-band { padding: 27px 30px; display: flex; align-items: center; justify-content: space-between; gap: 24px; background: #d9f64e; }
    .join-band p { margin: 6px 0 0; color: #36441b; font-size: 14px; }
    .join-band .button { flex: 0 0 auto; background: #19233a; }
    .site-footer { padding: 34px 0 24px; background: #172033; color: #f3f5fa; }
    .footer-main { display: grid; grid-template-columns: 1.2fr 1fr; gap: 36px; padding-bottom: 25px; }
    .footer-brand { display: flex; align-items: center; gap: 12px; }
    .footer-brand img { width: 38px; max-height: 38px; object-fit: contain; }
    .footer-main p { max-width: 520px; margin: 12px 0 0; color: #c2cada; font-size: 13px; }
    .footer-links { display: flex; flex-wrap: wrap; gap: 8px 16px; align-content: start; }
    .footer-links a { color: #e2e8f5; font-size: 13px; text-decoration: none; }
    .footer-links a:hover { color: var(--lime); }
    .footer-bottom { display: flex; justify-content: space-between; gap: 16px; padding-top: 16px; border-top: 1px solid rgba(255,255,255,.15); color: #b9c2d1; font-size: 12px; }
    .footer-bottom a { color: #e2e8f5; text-decoration: none; }
    .qr-float {
      position: fixed;
      z-index: 18;
      right: 18px;
      bottom: 22px;
      width: 82px;
      padding: 7px;
      border: 1px solid #e1e5ed;
      background: #fff;
      box-shadow: var(--shadow);
      text-align: center;
    }
    .qr-float img { display: block; width: 100%; aspect-ratio: 1; object-fit: cover; }
    .qr-float span { display: block; padding-top: 4px; color: #26334a; font-size: 10px; font-weight: 750; }
    .back-top {
      position: fixed;
      z-index: 17;
      right: 30px;
      bottom: 122px;
      display: none;
      width: 40px;
      height: 40px;
      border: 0;
      border-radius: 4px;
      background: #192c68;
      color: #fff;
      cursor: pointer;
      font-size: 18px;
    }
    .back-top.visible { display: block; }
    .reveal { opacity: 0; transform: translateY(14px); transition: opacity .55s ease, transform .55s ease; }
    .reveal.is-visible { opacity: 1; transform: translateY(0); }
    @keyframes rise-in { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }
    @media (max-width: 1060px) {
      .nav-links a { padding-inline: 6px; font-size: 11px; }
      .nav-cta { display: none !important; }
      .service-grid { grid-template-columns: repeat(3,1fr); }
    }
    @media (max-width: 820px) {
      .nav-shell { min-height: 66px; }
      .menu-toggle { display: inline-grid; place-items: center; }
      .nav-links {
        position: absolute;
        top: 66px;
        left: 0;
        right: 0;
        display: none;
        align-items: stretch;
        padding: 10px 20px 16px;
        border-bottom: 1px solid var(--line);
        background: #fff;
        box-shadow: 0 14px 22px rgba(20,31,59,.08);
      }
      .nav-links.is-open { display: grid; grid-template-columns: repeat(2,1fr); }
      .nav-links a { padding: 10px; font-size: 13px; }
      .nav-links .nav-cta { display: block !important; margin: 5px 0 0; text-align: center; }
      .hero-inner { grid-template-columns: 1fr; gap: 30px; padding-top: 56px; padding-bottom: 38px; }
      .hero-visual { min-height: auto; }
      .metric-board { width: 100%; max-width: 520px; }
      .intro-layout, .network, .evaluation, .match-layout, .price-layout { grid-template-columns: 1fr; gap: 28px; }
      .service-grid { grid-template-columns: repeat(2,1fr); }
      .service-area { grid-template-columns: repeat(2,1fr); }
      .workflows { grid-template-columns: repeat(2,1fr); }
      .reviews { grid-template-columns: repeat(2,1fr); }
      .article-grid { grid-template-columns: repeat(2,1fr); }
      .rating { max-width: 360px; }
      .footer-main { grid-template-columns: 1fr; gap: 24px; }
    }
    @media (max-width: 560px) {
      .container { width: min(var(--container), calc(100% - 30px)); }
      .section { padding: 54px 0; }
      .hero-inner { padding-top: 44px; }
      h1 { font-size: 40px; }
      .hero-copy > p { font-size: 15px; }
      .hero-stats { grid-template-columns: repeat(2,1fr); }
      .hero-stat:nth-child(2) { border-right: 0; }
      .hero-stat:nth-child(-n+2) { border-bottom: 1px solid rgba(255,255,255,.18); }
      .intro-points, .service-grid, .service-area, .workflows, .solution-grid, .case-grid, .reviews, .article-grid { grid-template-columns: 1fr; }
      .service-grid { gap: 0; }
      .form-grid { grid-template-columns: 1fr; }
      .field-wide { grid-column: auto; }
      .join-band { align-items: flex-start; flex-direction: column; padding: 22px; }
      .footer-bottom { flex-direction: column; }
      .qr-float { right: 10px; bottom: 12px; width: 66px; }
      .back-top { right: 22px; bottom: 98px; }
    }
    @media (prefers-reduced-motion: reduce) {
      *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; transition-duration: .01ms !important; }
      .reveal { opacity: 1; transform: none; }
    }