*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

      :root {
        --orange: #FF8F00;
        --orange-dark: #DF8200;
        --black: #000000;
        --white: #ffffff;
        --shadow: 4px 4px 0 #000;
        --shadow-sm: 2px 2px 0 #000;
      }

      body {
        font-family: "IBM Plex Sans", "Courier New", sans-serif;
        background-color: var(--white);
        color: var(--black);
        line-height: 1.6;
        min-height: 100vh;
        -webkit-font-smoothing: antialiased;
      }

      .navbar {
        display: flex;
        justify-content: flex-end;
        align-items: center;
        padding: 20px 6%;
        border-bottom: 2px solid var(--black);
      }

      .navbar ul {
        list-style: none;
        display: flex;
        gap: 32px;
      }

      .navbar a {
        text-decoration: none;
        font-size: 15px;
        font-family: "Space Mono", monospace;
        letter-spacing: 0.05em;
        color: var(--black);
        position: relative;
        transition: color 0.2s ease;
      }

      .navbar a::after {
        content: "";
        position: absolute;
        left: 0; bottom: -4px;
        width: 0; height: 2px;
        background-color: var(--orange);
        transition: width 0.2s ease;
      }

      .navbar a:hover { color: var(--orange); }
      .navbar a:hover::after { width: 100%; }

      main {
        max-width: 860px;
        margin: 0 auto;
        padding: 64px 24px 96px;
      }

      .page-label {
        font-family: "Space Mono", monospace;
        font-size: 12px;
        font-weight: 700;
        letter-spacing: 0.22em;
        text-transform: uppercase;
        color: var(--orange);
        margin-bottom: 12px;
      }

      .page-title {
        font-family: "Space Mono", monospace;
        font-size: clamp(36px, 6vw, 68px);
        font-weight: 700;
        line-height: 1.0;
        letter-spacing: -0.02em;
        color: var(--black);
        margin-bottom: 40px;
        border-bottom: 2px solid var(--black);
        padding-bottom: 28px;
      }

      .intro-block {
        background-color: var(--white);
        border: 2px solid var(--black);
        box-shadow: var(--shadow);
        padding: 28px 32px;
        margin-bottom: 32px;
      }

      .intro-block p {
        font-family: "IBM Plex Sans", sans-serif;
        font-size: 16px;
        line-height: 1.75;
        color: var(--black);
      }

      .hyperlink {
        color: var(--black);
        font-family: "Space Mono", monospace;
        font-size: 0.92em;
        text-decoration: none;
        border-bottom: 2px solid var(--orange);
        transition: background-color 0.15s ease, color 0.15s ease;
        padding: 0 2px;
      }

      .hyperlink:hover {
        background-color: var(--orange);
        color: var(--black);
      }

      .section-header {
        font-family: "Space Mono", monospace;
        font-size: 11px;
        font-weight: 700;
        letter-spacing: 0.2em;
        text-transform: uppercase;
        color: var(--black);
        opacity: 0.45;
        margin-bottom: 12px;
        margin-top: 40px;
      }

      .styled-list {
        list-style: none;
        border: 2px solid var(--black);
        box-shadow: var(--shadow);
        margin-bottom: 32px;
        overflow: hidden;
      }

      .styled-list li {
        font-family: "IBM Plex Sans", sans-serif;
        font-size: 15px;
        padding: 14px 24px;
        border-bottom: 1.5px solid var(--black);
        display: flex;
        align-items: flex-start;
        gap: 14px;
        line-height: 1.5;
      }

      .styled-list li:last-child {
        border-bottom: none;
      }

      .styled-list li::before {
        content: "→";
        font-family: "Space Mono", monospace;
        font-size: 13px;
        color: var(--orange);
        flex-shrink: 0;
        margin-top: 1px;
      }

      .team-list li {
        flex-direction: column;
        gap: 2px;
      }

      .team-list li::before {
        content: "▸";
      }

      .team-name {
        font-family: "Space Mono", monospace;
        font-size: 14px;
        font-weight: 700;
      }

      .team-affil {
        font-family: "IBM Plex Sans", sans-serif;
        font-size: 13px;
        opacity: 0.6;
        letter-spacing: 0.01em;
      }

      .highlight-box {
        background-color: var(--orange);
        border: 2px solid var(--black);
        box-shadow: var(--shadow);
        padding: 20px 28px;
        margin-bottom: 32px;
      }

      .highlight-box p {
        font-family: "IBM Plex Sans", sans-serif;
        font-size: 15px;
        line-height: 1.7;
        color: var(--black);
      }

      .contact-tag {
        display: inline-block;
        font-family: "Space Mono", monospace;
        font-size: 13px;
        padding: 6px 14px;
        background: var(--white);
        border: 2px solid var(--black);
        box-shadow: var(--shadow-sm);
        text-decoration: none;
        color: var(--black);
        margin-top: 24px;
        transition: box-shadow 0.15s ease, transform 0.15s ease, background-color 0.15s ease;
      }

      .contact-tag:hover {
        background-color: var(--orange);
        box-shadow: 0 0 0 var(--black);
        transform: translate(2px, 2px);
      }

      .footer-rule {
        border: none;
        border-top: 2px solid var(--black);
        margin: 56px 0 0;
      }

      @media (max-width: 768px) {
        .navbar { padding: 18px 5%; }
        .navbar ul { gap: 20px; }
        main { padding: 40px 16px 64px; }
        .intro-block { padding: 20px 20px; }
      }

      @media (max-width: 480px) {
        .navbar ul { gap: 14px; }
        .navbar a { font-size: 13px; }
        .page-title { font-size: clamp(28px, 9vw, 42px); }
      }