/* =========================
   基本設定
========================= */
* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background-color: #000;
  color: #fff;
  font-family:
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    "Noto Sans JP",
    "Hiragino Kaku Gothic ProN",
    Meiryo,
    sans-serif;
  line-height: 1.9;
  overflow-wrap: anywhere;
}

p {
  line-height: 3;
}

/* =========================
   メインコンテンツ
========================= */
.operator-container {
  width: 100%;
  max-width: 800px;
  margin: 0 auto;
  padding: 64px 24px 20px;
}

/* =========================
   ページタイトル
========================= */
.page-header {
  text-align: center;
}

.page-header h1 {
  margin: 0 0 12px;
  font-size: 30px;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.page-description {
  margin: 0;
  color: #ccc;
  font-size: 14px;
}

/* =========================
   基本情報テーブル
========================= */

.info-table {
  border: 1px solid #333;
  overflow: hidden;
}

.info-row {
  display: grid;
  grid-template-columns: 180px minmax(0, 1fr);
  border-bottom: 1px solid #333;
}

.info-row:last-child {
  border-bottom: none;
}

.info-label {
  display: flex;
  align-items: center;
  padding: 18px 20px;
  border-right: 1px solid #333;
  font-weight: 600;
}

.info-value {
  min-width: 0;
  padding: 18px 20px;
}

.info-value a {
  color: #fff;
  text-decoration: underline;
  text-underline-offset: 4px;
  transition: opacity 0.2s ease;
}

.info-value a:hover {
  opacity: 0.7;
}

footer {
  text-align: center;

  font-size: 11px;

  opacity: 0.8;

  letter-spacing: 0.04em;
}


.site-footer {
  width: 100%;
  box-sizing: border-box;
  padding: 24px 16px;
  text-align: center;
  font-size: 13px;
  color: #ffffff;
}

.site-footer .copyright {
  margin: 0 0 10px;
}

.footer-links {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.footer-links a {
  color: inherit;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.footer-links a:hover {
  color: #3984e8;
}

/* =========================
   タブレット・スマートフォン
========================= */
@media (max-width: 600px) {
  .operator-container {
    padding: 36px 16px 56px;
  }

  .page-header {
    margin-bottom: 28px;
    padding-bottom: 20px;
  }

  .page-header h1 {
    font-size: 25px;
  }

  .page-description {
    font-size: 13px;
  }

  .info-section {
    margin-bottom: 36px;
  }

  .info-row {
    grid-template-columns: 1fr;
  }

  .info-label {
    padding: 10px 16px;
    border-right: none;
    border-bottom: 1px solid #333;
    font-size: 13px;
  }

  .info-value {
    padding: 12px 16px;
    font-size: 14px;
  }

  .content-section {
    margin-bottom: 24px;
    padding: 20px 18px;
  }

  .content-section h2 {
    margin-bottom: 14px;
    font-size: 19px;
  }

  .content-section p {
    font-size: 14px;
  }
}

/* =========================
   動きを抑える設定への対応
========================= */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
  }
}