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

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Hiragino Kaku Gothic ProN", "Yu Gothic", Meiryo, sans-serif;
      color: #222;
      line-height: 1.8;
      background: #f7f7f5;
    }

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

    .container {
      width: min(1120px, 92%);
      margin: 0 auto;
    }

    header {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      z-index: 100;
      background: rgba(255, 255, 255, 0.94);
      border-bottom: 1px solid #e6e2d8;
      backdrop-filter: blur(8px);
    }

    .header-inner {
      height: 72px;
      display: flex;
      align-items: center;
      justify-content: space-between;
    }

    .logo {
      font-size: 24px;
      font-weight: 700;
      letter-spacing: 0.08em;
      color: #1f2b24;
    }

    .logo span {
      display: block;
      font-size: 11px;
      font-weight: 500;
      letter-spacing: 0.16em;
      color: #7a6a47;
      margin-top: -4px;
    }

    nav ul {
      display: flex;
      gap: 28px;
      list-style: none;
      font-size: 14px;
      font-weight: 600;
    }

    nav a:hover {
      color: #9b7b2f;
    }

    .hero {
      min-height: 720px;
      padding-top: 72px;
      display: flex;
      align-items: center;
      background:
        linear-gradient(rgba(19, 32, 26, 0.66), rgba(19, 32, 26, 0.66)),
        url("https://images.unsplash.com/photo-1503387762-592deb58ef4e?auto=format&fit=crop&w=1600&q=80") center/cover no-repeat;
      color: #fff;
    }

    .hero-content {
      max-width: 760px;
    }

    .hero-sub {
      display: inline-block;
      padding: 6px 16px;
      margin-bottom: 24px;
      border: 1px solid rgba(255, 255, 255, 0.55);
      font-size: 14px;
      letter-spacing: 0.12em;
    }

    .hero h1 {
      font-size: clamp(34px, 5vw, 64px);
      line-height: 1.35;
      letter-spacing: 0.08em;
      margin-bottom: 24px;
    }

    .hero p {
      font-size: 18px;
      max-width: 680px;
      color: #f2f2ed;
      margin-bottom: 36px;
    }

    .btn-group {
      display: flex;
      gap: 16px;
      flex-wrap: wrap;
    }

    .btn {
      display: inline-block;
      padding: 14px 30px;
      border-radius: 4px;
      font-weight: 700;
      letter-spacing: 0.04em;
      transition: 0.25s;
    }

    .btn-primary {
      background: #b08a36;
      color: #fff;
    }

    .btn-primary:hover {
      background: #967428;
    }

    .btn-outline {
      border: 1px solid #fff;
      color: #fff;
    }

    .btn-outline:hover {
      background: #fff;
      color: #1f2b24;
    }

    section {
      padding: 96px 0;
    }

    .section-title {
      margin-bottom: 48px;
    }

    .section-title .en {
      display: block;
      color: #b08a36;
      font-size: 13px;
      font-weight: 700;
      letter-spacing: 0.18em;
      margin-bottom: 8px;
    }

    .section-title h2 {
      font-size: clamp(28px, 4vw, 42px);
      letter-spacing: 0.08em;
      line-height: 1.4;
    }

    .about-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 56px;
      align-items: center;
    }

    .about-text p + p {
      margin-top: 20px;
    }

    .about-card {
      background: #fff;
      padding: 42px;
      box-shadow: 0 18px 46px rgba(0, 0, 0, 0.08);
      border-left: 6px solid #b08a36;
    }

    .about-card strong {
      display: block;
      font-size: 26px;
      line-height: 1.5;
      margin-bottom: 16px;
    }

    .services {
      background: #fff;
    }

    .service-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .service-card {
      padding: 34px 28px;
      background: #f7f7f5;
      border: 1px solid #ebe6dc;
      min-height: 220px;
    }

    .service-card .num {
      color: #b08a36;
      font-size: 13px;
      font-weight: 700;
      letter-spacing: 0.12em;
      margin-bottom: 14px;
    }

    .service-card h3 {
      font-size: 21px;
      margin-bottom: 14px;
    }

    .strength {
      background: #1f2b24;
      color: #fff;
    }

    .strength .section-title h2,
    .strength p {
      color: #fff;
    }

    .strength-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
    }

    .strength-item {
      border-top: 1px solid rgba(255, 255, 255, 0.28);
      padding-top: 26px;
    }

    .strength-item h3 {
      font-size: 22px;
      margin-bottom: 12px;
      color: #e4c377;
    }

    .company-table {
      width: 100%;
      border-collapse: collapse;
      background: #fff;
      box-shadow: 0 12px 34px rgba(0, 0, 0, 0.06);
    }

    .company-table th,
    .company-table td {
      padding: 20px 24px;
      border-bottom: 1px solid #eee8dc;
      text-align: left;
      vertical-align: top;
    }

    .company-table th {
      width: 220px;
      background: #f2eee5;
      font-weight: 700;
      color: #4b4028;
    }

    .contact {
      background: linear-gradient(135deg, #f6f1e7 0%, #ffffff 100%);
      text-align: center;
    }

    .contact-box {
      max-width: 780px;
      margin: 0 auto;
      background: #fff;
      padding: 50px 34px;
      box-shadow: 0 18px 46px rgba(0, 0, 0, 0.08);
    }

    .mail-link {
      display: inline-block;
      margin-top: 24px;
      font-size: clamp(22px, 4vw, 34px);
      font-weight: 700;
      color: #1f2b24;
      border-bottom: 3px solid #b08a36;
    }

    footer {
      padding: 28px 0;
      background: #17201a;
      color: #cfcfc8;
      text-align: center;
      font-size: 13px;
    }

    @media (max-width: 820px) {
      .header-inner {
        height: 64px;
      }

      nav {
        display: none;
      }

      .hero {
        min-height: 640px;
        padding-top: 64px;
      }

      section {
        padding: 72px 0;
      }

      .about-grid,
      .service-grid,
      .strength-grid {
        grid-template-columns: 1fr;
      }

      .company-table th,
      .company-table td {
        display: block;
        width: 100%;
      }

      .company-table th {
        padding-bottom: 8px;
      }

      .company-table td {
        padding-top: 8px;
      }
    }