/* ===== Font Face ===== */

    /* ===== Reset & Base ===== */
    *, *::before, *::after {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }

    :root {
      --color-black: #000;
      --color-white: #fff;
      --color-gray-50: #f8f8f8;
      --color-gray-100: #f0f0f0;
      --color-gray-200: #e0e0e0;
      --color-gray-400: #999;
      --color-gray-600: #666;
      --color-gray-800: #333;
      --color-teal: #00857c;
      --color-teal-dark: #006b63;
      --font-sans: 'Helvetica Neue', 'Noto Sans JP', Arial, sans-serif;
      --font-serif: 'Tiempos Headline', 'Noto Serif JP', Georgia, 'Times New Roman', serif;
      --max-width: 1280px;
      --header-height: 64px;
    }

    html {
      font-size: 16px;
      -webkit-font-smoothing: antialiased;
      -moz-osx-font-smoothing: grayscale;
    }

    body {
      font-family: var(--font-sans);
      color: var(--color-black);
      background: var(--color-white);
      line-height: 1.6;
    }

    a {
      color: inherit;
      text-decoration: none;
    }

    img {
      max-width: 100%;
      height: auto;
      display: block;
    }

    ul {
      list-style: none;
    }

    .container {
      max-width: var(--max-width);
      margin: 0 auto;
      padding: 0 24px;
    }

    /* ===== Header ===== */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: var(--color-white);
      border-bottom: 1px solid var(--color-gray-200);
      height: var(--header-height);
    }

    .header-inner {
      max-width: var(--max-width);
      margin: 0 auto;
      padding: 0 24px;
      height: 100%;
      display: flex;
      align-items: center;
      justify-content: space-between;
    }

    .header-logo a {
      display: flex;
      align-items: center;
    }

    .header-logo img {
      height: 20px;
      width: auto;
    }

    .header-logo .logo-text {
      font-family: var(--font-sans);
      font-size: 18px;
      font-weight: 700;
      letter-spacing: 0.5px;
      text-transform: uppercase;
    }

    .header-nav {
      display: flex;
      align-items: center;
      gap: 32px;
    }

    .header-nav a {
      font-size: 14px;
      font-weight: 500;
      letter-spacing: 0.02em;
      transition: color 0.2s;
      position: relative;
    }

    .header-nav a:hover {
      color: var(--color-teal);
    }

    .header-nav a.active::after {
      content: '';
      position: absolute;
      bottom: -4px;
      left: 0;
      right: 0;
      height: 2px;
      background: var(--color-teal);
    }

    .header-right {
      display: flex;
      align-items: center;
      gap: 16px;
    }

    .region-selector {
      font-size: 13px;
      color: var(--color-gray-600);
      font-weight: 500;
    }

    .search-btn {
      display: flex;
      align-items: center;
      cursor: pointer;
      background: none;
      border: none;
      padding: 0;
    }

    .search-btn svg {
      width: 20px;
      height: 20px;
      stroke: var(--color-black);
    }

    .menu-toggle {
      display: none;
      background: none;
      border: none;
      cursor: pointer;
      padding: 4px;
    }

    .menu-toggle span {
      display: block;
      width: 24px;
      height: 2px;
      background: var(--color-black);
      margin: 5px 0;
      transition: 0.3s;
    }

    /* ===== Hero ===== */
    .tech-hero {
      background: var(--color-black);
      color: var(--color-white);
      padding: 120px 0 80px;
    }

    .tech-hero h1 {
      font-family: 'Sohne Wide', 'Helvetica Neue', Arial, sans-serif;
      font-size: 72px;
      font-weight: 700;
      text-transform: uppercase;
      line-height: 1.1;
      margin-bottom: 16px;
    }

    .tech-hero p {
      font-family: 'Tiempos Headline', 'Noto Serif JP', Georgia, serif;
      font-size: 32px;
      font-weight: 300;
      line-height: 1.2;
      color: rgba(255, 255, 255, 0.8);
    }

    /* ===== Tech Section (alternating) ===== */
    .tech-section {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 0;
      min-height: 500px;
    }

    .tech-section:nth-child(even) .tech-section__image {
      order: -1;
    }

    .tech-section__text {
      padding: 80px 60px;
      background: var(--color-white);
      display: flex;
      flex-direction: column;
      justify-content: center;
    }

    .tech-section__text h2 {
      font-family: var(--font-serif);
      font-size: 36px;
      font-weight: 400;
      letter-spacing: -0.02em;
      margin-bottom: 24px;
      color: var(--color-black);
    }

    .tech-section__text p {
      font-size: 16px;
      color: var(--color-gray-600);
      line-height: 1.8;
      margin-bottom: 16px;
    }

    .tech-section__text p:last-child {
      margin-bottom: 0;
    }

    .tech-section__image {
      overflow: hidden;
      background: var(--color-gray-100);
    }

    .tech-section__image img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }

    /* ===== Footer ===== */
    .site-footer {
      background: var(--color-black);
      color: var(--color-white);
      padding: 64px 0 32px;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 40px;
      padding-bottom: 48px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.15);
      margin-bottom: 32px;
    }

    .footer-col h3 {
      font-size: 14px;
      font-weight: 600;
      margin-bottom: 16px;
      letter-spacing: 0.02em;
    }

    .footer-col a {
      display: block;
      font-size: 13px;
      color: rgba(255, 255, 255, 0.6);
      margin-bottom: 10px;
      transition: color 0.2s;
    }

    .footer-col a:hover {
      color: var(--color-white);
    }

    .footer-bottom {
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 16px;
    }

    .footer-bottom p {
      font-size: 12px;
      color: rgba(255, 255, 255, 0.7);
    }

    .footer-bottom-links {
      display: flex;
      gap: 20px;
    }

    .footer-bottom-links a {
      font-size: 12px;
      color: rgba(255, 255, 255, 0.7);
      transition: color 0.2s;
    }

    .footer-bottom-links a:hover {
      color: var(--color-white);
    }

    /* ===== Responsive ===== */
    @media (max-width: 1024px) {
      .tech-hero h1 {
        font-size: 48px;
      }

      .tech-hero p {
        font-size: 26px;
      }

      .tech-section__text {
        padding: 60px 40px;
      }

      .tech-section__text h2 {
        font-size: 30px;
      }
    }

    @media (max-width: 768px) {
      .header-nav {
        display: none;
      }

      .menu-toggle {
        display: block;
      }

      .tech-hero {
        padding: 96px 0 60px;
      }

      .tech-hero h1 {
        font-size: 36px;
      }

      .tech-hero p {
        font-size: 22px;
      }

      .tech-section {
        grid-template-columns: 1fr;
        min-height: auto;
      }

      .tech-section:nth-child(even) .tech-section__image {
        order: 0;
      }

      .tech-section__image {
        aspect-ratio: 16 / 9;
      }

      .tech-section__text {
        padding: 48px 24px;
      }

      .tech-section__text h2 {
        font-size: 26px;
      }

      .footer-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 32px;
      }
    }

    @media (max-width: 480px) {
      .tech-hero h1 {
        font-size: 28px;
      }

      .tech-hero p {
        font-size: 20px;
      }

      .tech-section__text h2 {
        font-size: 24px;
      }

      .footer-grid {
        grid-template-columns: 1fr;
      }

      .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
      }
    }