:root {
        color-scheme: light;
        font-family:
          Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "SF Pro Text",
          "PingFang SC", "Helvetica Neue", sans-serif;
        color: #172235;
        background: #f4f6f8;
        font-synthesis: none;
        --ink: #172235;
        --muted: #66758b;
        --line: #dce3eb;
        --surface: #ffffff;
        --navy: #17253d;
        --navy-soft: #223653;
        --blue: #2767d8;
        --blue-soft: #eaf2ff;
        --green: #16805a;
        --green-soft: #e8f7f0;
        --lime: #b4f000;
        --radius-small: 12px;
        --radius-medium: 20px;
        --radius-large: 32px;
        --shadow: 0 24px 70px rgba(24, 37, 61, 0.12);
      }

      * { box-sizing: border-box; }
      html { scroll-behavior: smooth; }
      body { margin: 0; min-width: 320px; background: #f4f6f8; }
      body, button, a { -webkit-font-smoothing: antialiased; }
      a { color: inherit; }
      img { max-width: 100%; }
      .skip-link { position: fixed; top: -80px; left: 20px; z-index: 20; padding: 10px 14px; color: #fff; background: var(--navy); border-radius: 8px; }
      .skip-link:focus { top: 16px; }
      .container { width: min(calc(100% - 48px), 1240px); margin-inline: auto; }
      .site-header {
        position: sticky;
        top: 0;
        z-index: 10;
        display: flex;
        align-items: center;
        justify-content: space-between;
        min-height: 68px;
        padding: 0 max(24px, calc((100vw - 1240px) / 2));
        border-bottom: 1px solid rgba(220, 227, 235, 0.82);
        background: rgba(244, 246, 248, 0.9);
        backdrop-filter: blur(18px);
      }
      .brand { display: inline-flex; align-items: center; gap: 10px; color: var(--ink); font-size: 15px; font-weight: 800; text-decoration: none; }
      .brand-mark { width: 32px; height: 32px; display: grid; place-content: center; gap: 3px; border: 1px solid #6684b6; border-radius: 10px; background: var(--navy); }
      .brand-mark i { display: block; width: 15px; height: 4px; border-radius: 4px; background: #8eb4f5; }
      .brand-mark i:last-child { width: 10px; }
      nav { display: flex; align-items: center; gap: 26px; }
      nav a { color: #56657a; font-size: 13px; font-weight: 650; text-decoration: none; }
      nav a:hover { color: var(--ink); }
      .header-download { min-height: 38px; padding: 0 15px; display: inline-flex; align-items: center; gap: 8px; color: #fff; background: var(--navy); border-radius: 10px; font-size: 13px; font-weight: 760; text-decoration: none; }
      .header-download:hover { background: #243957; }
      a:focus-visible, summary:focus-visible { outline: 3px solid rgba(39, 103, 216, 0.28); outline-offset: 3px; }

      .hero { padding: clamp(74px, 9vw, 128px) 0 76px; overflow: hidden; }
      .hero-copy { max-width: 970px; }
      .eyebrow, .section-label { margin: 0 0 18px; color: #55708f; font-size: 12px; font-weight: 820; letter-spacing: 0.13em; text-transform: uppercase; }
      .eyebrow { display: flex; align-items: center; gap: 9px; }
      .eyebrow::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--green); box-shadow: 0 0 0 5px rgba(22, 128, 90, 0.1); }
      h1, h2, h3, p { margin-top: 0; }
      h1 { max-width: 950px; margin-bottom: 28px; font-size: clamp(48px, 7vw, 92px); line-height: 0.98; letter-spacing: -0.065em; }
      h1 em, h2 em { color: var(--blue); font-style: normal; }
      .hero-lead { max-width: 760px; margin-bottom: 32px; color: var(--muted); font-size: clamp(18px, 2vw, 23px); line-height: 1.65; }
      .hero-actions { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
      .button { min-height: 50px; padding: 0 20px; display: inline-flex; align-items: center; justify-content: center; gap: 10px; border: 1px solid transparent; border-radius: 12px; font-size: 14px; font-weight: 780; text-decoration: none; transition: transform 150ms ease, background 150ms ease, border-color 150ms ease; }
      .button:hover { transform: translateY(-1px); }
      .button-primary { color: #fff; background: var(--blue); box-shadow: 0 12px 26px rgba(39, 103, 216, 0.2); }
      .button-primary:hover { background: #205bbf; }
      .button-secondary { color: #35465d; background: #fff; border-color: #cfd8e3; }
      .button-secondary:hover { border-color: #9fb2c8; }
      .release-note { margin: 16px 0 0; color: #8390a1; font-size: 12px; }
      .product-frame { position: relative; margin: 62px 0 0; padding: 12px; border: 1px solid #d4dce6; border-radius: 26px; background: #fff; box-shadow: var(--shadow); }
      .product-frame::before { content: "CURRENT PRODUCT"; position: absolute; top: -28px; right: 14px; color: #8390a1; font: 740 10px/1 ui-monospace, SFMono-Regular, Menlo, monospace; letter-spacing: 0.12em; }
      .product-frame img { display: block; width: 100%; height: auto; border-radius: 16px; background: #eef2f6; }
      .proof-strip { margin-top: 20px; display: grid; grid-template-columns: repeat(5, 1fr); border-block: 1px solid var(--line); }
      .proof-strip span { min-height: 58px; display: grid; place-content: center; color: #617087; border-left: 1px solid var(--line); font-size: 11px; font-weight: 760; letter-spacing: 0.04em; white-space: nowrap; }
      .proof-strip span:first-child { border-left: 0; }

      section { scroll-margin-top: 76px; }
      .section-head { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(300px, 0.8fr); gap: 70px; align-items: end; }
      .section-head h2, .agent-copy h2, .trust-copy h2, .download-copy h2 { margin-bottom: 0; font-size: clamp(38px, 5vw, 66px); line-height: 1.03; letter-spacing: -0.055em; }
      .section-head > p { margin-bottom: 4px; color: var(--muted); font-size: 17px; line-height: 1.75; }

      .context-section { padding: 118px 0; background: #fff; border-block: 1px solid var(--line); }
      .context-map { margin-top: 56px; display: grid; grid-template-columns: minmax(0, 1fr) 160px minmax(0, 1fr); gap: 18px; align-items: stretch; }
      .context-sources { display: grid; gap: 12px; }
      .context-card { padding: 22px; display: grid; grid-template-columns: 42px minmax(0, 1fr); gap: 15px; align-items: center; border: 1px solid var(--line); border-radius: var(--radius-small); background: #fbfcfd; }
      .context-card > span { width: 42px; height: 42px; display: grid; place-content: center; color: var(--blue); background: var(--blue-soft); border-radius: 11px; font-size: 12px; font-weight: 840; }
      .context-card b { display: block; font-size: 16px; }
      .context-card p { margin: 4px 0 0; color: var(--muted); font-size: 13px; line-height: 1.55; }
      .context-route { display: grid; place-content: center; justify-items: center; gap: 10px; color: #7c8b9f; font-size: 11px; font-weight: 750; text-align: center; }
      .context-route::before, .context-route::after { content: ""; width: 1px; height: 48px; background: #cbd6e2; }
      .repository-card { padding: 34px; display: flex; flex-direction: column; justify-content: space-between; border-radius: var(--radius-medium); color: #fff; background: var(--navy); }
      .repository-card .repo-mark { width: 52px; height: 52px; display: grid; place-content: center; border: 1px solid #6684b6; border-radius: 15px; color: #8eb4f5; font-size: 12px; font-weight: 840; }
      .repository-card h3 { margin: 38px 0 8px; font-size: 26px; letter-spacing: -0.03em; }
      .repository-card p { color: #afbdd0; font-size: 14px; line-height: 1.65; }
      .repository-card small { color: #7f93ae; font: 650 11px/1.5 ui-monospace, SFMono-Regular, Menlo, monospace; }

      .features-section { padding: 118px 0; }
      .feature-list { margin-top: 48px; border-top: 1px solid var(--line); }
      .feature-row { padding: 27px 0; display: grid; grid-template-columns: 70px minmax(220px, 0.7fr) minmax(300px, 1.3fr); gap: 24px; border-bottom: 1px solid var(--line); }
      .feature-row > span { color: #95a1b1; font: 700 11px/1.5 ui-monospace, SFMono-Regular, Menlo, monospace; }
      .feature-row h3 { margin: 0; font-size: 20px; letter-spacing: -0.025em; }
      .feature-row p { margin: 0; color: var(--muted); font-size: 15px; line-height: 1.7; }

      .agent-section { padding: 84px 0; color: #fff; background: var(--navy); }
      .agent-grid { display: grid; grid-template-columns: minmax(320px, 0.72fr) minmax(0, 1.28fr); gap: 64px; align-items: center; }
      .agent-copy .section-label { color: #8eb4f5; }
      .agent-copy h2 { max-width: 540px; }
      .agent-copy > p { margin: 24px 0 0; color: #afbdd0; font-size: 17px; line-height: 1.75; }
      .agent-steps { margin: 28px 0 0; padding: 0; display: grid; gap: 14px; list-style: none; counter-reset: agent; }
      .agent-steps li { counter-increment: agent; display: grid; grid-template-columns: 28px minmax(0, 1fr); gap: 12px; color: #d6deea; font-size: 14px; line-height: 1.6; }
      .agent-steps li::before { content: counter(agent); width: 26px; height: 26px; display: grid; place-content: center; color: #17253d; background: var(--lime); border-radius: 8px; font-size: 11px; font-weight: 850; }
      .agent-shot { margin: 0; padding: 10px; border: 1px solid #354965; border-radius: 20px; background: #22344f; box-shadow: 0 28px 70px rgba(0, 0, 0, 0.24); }
      .agent-shot img { display: block; width: 100%; height: auto; aspect-ratio: 8 / 5; object-fit: contain; border-radius: 12px; }

      .trust-section { padding: 118px 0; background: #fff; }
      .trust-grid { display: grid; grid-template-columns: minmax(300px, 0.75fr) minmax(0, 1.25fr); gap: 72px; }
      .trust-copy p { margin: 24px 0 0; color: var(--muted); font-size: 17px; line-height: 1.75; }
      .trust-items { border-top: 1px solid var(--line); }
      .trust-item { padding: 22px 0; display: grid; grid-template-columns: 42px minmax(0, 1fr); gap: 15px; border-bottom: 1px solid var(--line); }
      .trust-item > span { width: 34px; height: 34px; display: grid; place-content: center; color: var(--green); background: var(--green-soft); border-radius: 10px; font-size: 13px; font-weight: 850; }
      .trust-item b { display: block; font-size: 16px; }
      .trust-item p { margin: 5px 0 0; color: var(--muted); font-size: 14px; line-height: 1.65; }

      .download-section { padding: 52px 0 118px; }
      .download-panel { padding: clamp(34px, 6vw, 72px); display: grid; grid-template-columns: minmax(0, 1fr) 350px; gap: 60px; align-items: center; border-radius: var(--radius-large); color: #102037; background: var(--lime); }
      .download-copy .section-label { color: #456000; }
      .download-copy h2 { max-width: 690px; }
      .download-action { padding: 24px; border-radius: 18px; background: rgba(255, 255, 255, 0.52); }
      .download-action p { margin-bottom: 16px; color: #3f550a; font-size: 14px; line-height: 1.6; }
      .download-action .button { width: 100%; color: #fff; background: var(--navy); }
      .download-action small { display: block; margin-top: 12px; color: #536b1b; font-size: 11px; line-height: 1.5; }
      .checksum { margin: 12px 0 0; color: #668328; font-size: 9px; line-height: 1.5; word-break: break-all; }

      .faq-section { padding: 0 0 112px; }
      .faq-grid { display: grid; grid-template-columns: minmax(280px, 0.72fr) minmax(0, 1.28fr); gap: 72px; }
      .faq-grid h2 { max-width: 500px; margin: 0; font-size: clamp(36px, 4.5vw, 60px); line-height: 1.05; letter-spacing: -0.05em; }
      .faq-list { border-top: 1px solid var(--line); }
      details { border-bottom: 1px solid var(--line); }
      summary { padding: 22px 2px; display: grid; grid-template-columns: 34px minmax(0, 1fr) 18px; gap: 12px; align-items: center; cursor: pointer; font-size: 15px; font-weight: 740; list-style: none; }
      summary::-webkit-details-marker { display: none; }
      summary span { color: #95a1b1; font: 700 10px/1 ui-monospace, SFMono-Regular, Menlo, monospace; }
      summary::after { content: "+"; color: var(--blue); font-size: 20px; font-weight: 500; }
      details[open] summary::after { content: "–"; }
      details p { margin: -5px 0 22px 46px; color: var(--muted); font-size: 14px; line-height: 1.75; }

      footer { padding: 28px max(24px, calc((100vw - 1240px) / 2)); display: grid; grid-template-columns: 1fr auto auto; gap: 24px; align-items: center; color: #8b98a9; border-top: 1px solid var(--line); font-size: 12px; }
      .footer-links { display: flex; gap: 20px; }
      .footer-links a { text-decoration: none; }
      .footer-links a:hover { color: var(--ink); }

      .legal-page { min-height: calc(100vh - 137px); padding: clamp(64px, 9vw, 112px) 0; }
      .legal-shell { width: min(calc(100% - 48px), 860px); margin-inline: auto; }
      .legal-shell .eyebrow { margin-bottom: 20px; }
      .legal-shell h1 { max-width: 760px; margin-bottom: 24px; font-size: clamp(44px, 7vw, 72px); }
      .legal-lead { max-width: 760px; color: var(--muted); font-size: 18px; line-height: 1.75; }
      .legal-meta { margin: 26px 0 0; padding: 14px 16px; color: #4f6179; border: 1px solid var(--line); border-radius: 12px; background: #fff; font-size: 13px; }
      .legal-content { margin-top: 52px; display: grid; gap: 38px; }
      .legal-content section { scroll-margin-top: 90px; }
      .legal-content h2 { margin-bottom: 12px; font-size: 25px; letter-spacing: -0.025em; }
      .legal-content h3 { margin: 20px 0 8px; font-size: 17px; }
      .legal-content p, .legal-content li { color: #526177; font-size: 15px; line-height: 1.8; }
      .legal-content ul, .legal-content ol { margin: 12px 0 0; padding-left: 22px; }
      .legal-content li + li { margin-top: 8px; }
      .legal-content a { color: var(--blue); text-underline-offset: 3px; }
      .legal-callout { padding: 20px; border: 1px solid #cddbef; border-radius: 16px; background: var(--blue-soft); }
      .legal-callout p:last-child { margin-bottom: 0; }
      .support-grid { margin-top: 26px; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
      .support-card { padding: 22px; border: 1px solid var(--line); border-radius: 16px; background: #fff; }
      .support-card h2 { font-size: 18px; }
      .support-card p { margin-bottom: 0; font-size: 14px; }

      @media (max-width: 900px) {
        nav { display: none; }
        .section-head, .agent-grid, .trust-grid, .download-panel, .faq-grid { grid-template-columns: 1fr; gap: 34px; }
        .context-map { grid-template-columns: 1fr; }
        .context-route { grid-template-columns: 48px auto 48px; }
        .context-route::before, .context-route::after { width: 48px; height: 1px; }
        .feature-row { grid-template-columns: 44px minmax(220px, 0.7fr) minmax(260px, 1.3fr); }
        .proof-strip { grid-template-columns: repeat(3, 1fr); }
        .proof-strip span:nth-child(4) { border-left: 0; }
        .download-action { max-width: 500px; }
      }
      @media (max-width: 700px) {
        .feature-row { grid-template-columns: 38px minmax(0, 1fr); gap: 14px; }
        .feature-row p { grid-column: 2; }
      }
      @media (max-width: 620px) {
        .container { width: min(calc(100% - 32px), 1240px); }
        .site-header { min-height: 60px; padding-inline: 16px; }
        .brand { font-size: 14px; }
        .header-download { min-height: 36px; padding-inline: 12px; font-size: 12px; }
        .hero { padding-top: 64px; }
        h1 { font-size: clamp(43px, 15vw, 64px); }
        .hero-lead { font-size: 17px; }
        .hero-actions .button { width: 100%; }
        .product-frame { margin-top: 50px; padding: 6px; border-radius: 17px; }
        .product-frame img { border-radius: 11px; }
        .proof-strip { grid-template-columns: 1fr 1fr; }
        .proof-strip span:nth-child(odd) { border-left: 0; }
        .proof-strip span:nth-child(4) { border-left: 1px solid var(--line); }
        .context-section, .features-section, .trust-section { padding: 84px 0; }
        .feature-row h3 { font-size: 18px; }
        .agent-section { padding: 72px 0; }
        .download-section { padding-bottom: 84px; }
        .download-panel { padding: 30px 22px; border-radius: 22px; }
        details p { margin-left: 0; }
        footer { grid-template-columns: 1fr; }
        .legal-shell { width: min(calc(100% - 32px), 860px); }
        .support-grid { grid-template-columns: 1fr; }
      }
      @media (prefers-reduced-motion: reduce) {
        html { scroll-behavior: auto; }
        .button { transition: none; }
      }