* {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    html {
      scroll-behavior: smooth;
    }
    body {
      font-family: "Helvetica Neue", Arial, "Hiragino Kaku Gothic ProN", "Hiragino Sans", Meiryo, sans-serif;
      color: #111111;
      background: #efeeee;
      line-height: 1.7;
      font-size: 16px;
    }
    a {
      color: #00c;
      text-decoration: none;
      border-bottom: 1px solid #039;
      transition: all 0.2s ease;
    }
    a:visited { color: #03F; border-bottom-color: #006; }
    a:active { color: #F00; }
    a:hover {
      color: #900;
      text-decoration: underline;
      background: #FF6;
      border-bottom-color: #900;
    }
    img {
      max-width: 100%;
      height: auto;
      display: block;
    }

    /* ===== 固定ヘッダー ===== */
    .header {
      background: #000;
      color: #0ff;
      position: sticky;
      top: 0;
      z-index: 1000;
      box-shadow: 0 2px 10px rgba(0,0,0,0.5);
    }
    .header-banner {
      display: flex;
      justify-content: space-between;
      align-items: center;
      max-width: 1100px;
      margin: 0 auto;
      padding: 10px 15px;
      gap: 20px;
      position: relative;
    }
    .header-title {
      flex: 1;
      font-size: 1.7rem;
      font-weight: bold;
      letter-spacing: 1px;
      text-shadow: 0 0 6px #0aa;
      line-height: 1.3;
    }
    .header-title h1 {
      font-size: inherit;
      font-weight: inherit;
      color: inherit;
      margin: 0;
      text-shadow: inherit;
    }
    .header-logo {
      max-width: 300px;
      flex-shrink: 0;
    }
    .header-logo img {
      border-radius: 6px;
      box-shadow: 0 0 10px rgba(0,200,200,0.25);
    }

    /* ヘッダーのサイト名をリンクにした場合のスタイル */
    .header-title a {
      color: inherit;
      text-decoration: none;
      border-bottom: none;
      text-shadow: inherit;
    }
    .header-title a:hover {
      background: none;
      color: #9ff;
      text-decoration: none;
    }

    /* ===== ハンバーガーボタン（アニメーション対応） ===== */
    .menu-toggle {
      display: none;
      width: 44px;
      height: 44px;
      background: transparent;
      border: 2px solid #0a8f0a;
      border-radius: 4px;
      cursor: pointer;
      position: absolute;
      top: 12px;
      right: 12px;
      z-index: 1001;
      padding: 0;
    }
    .menu-toggle span {
      display: block;
      width: 22px;
      height: 2px;
      background: #0a8f0a;
      margin: 5px auto;
      transition: all 0.3s ease;
      border-radius: 1px;
    }
    .menu-toggle.open span:nth-child(1) {
      transform: translateY(7px) rotate(45deg);
    }
    .menu-toggle.open span:nth-child(2) {
      opacity: 0;
    }
    .menu-toggle.open span:nth-child(3) {
      transform: translateY(-7px) rotate(-45deg);
    }

    /* グローバルメニュー */
    .global-nav {
      background: #000;
      border-top: 1px solid #0a3a0a;
      border-bottom: 2px solid #0a8f0a;
      overflow: hidden;
      transition: max-height 0.35s ease, opacity 0.3s ease, border-bottom-width 0.3s ease;
    }
    .global-nav ul {
      list-style: none;
      display: flex;
      flex-wrap: wrap;
      max-width: 1100px;
      margin: 0 auto;
      padding: 0 8px;
      justify-content: center;
    }
    .global-nav li {
      flex: 0 0 auto;
    }
    .global-nav a {
      display: block;
      color: #06959a;
      padding: 11px 13px;
      border-bottom: none;
      font-weight: bold;
      font-size: 0.95rem;
      background: transparent;
    }
    .global-nav a:hover,
    .global-nav a:focus {
      background: #0a2a0a;
      color: #99ffee;
      text-decoration: none;
    }

    /* ===== メインレイアウト ===== */
    .container {
      max-width: 1100px;
      margin: 25px auto;
      padding: 0 15px;
      display: flex;
      gap: 30px;
    }
    .main {
      flex: 1;
      min-width: 0;
    }
    .sidebar {
      width: 260px;
      flex-shrink: 0;
    }

    /* Welcomeセクション */
    .welcome-box {
      display: flex;
      gap: 25px;
      align-items: flex-start;
      margin-bottom: 30px;
    }
    .welcome-text {
      flex: 1;
    }
    .welcome-image {
      flex: 0 0 320px;
      max-width: 320px;
    }
    .welcome-image img {
      border: 1px solid #999;
      box-shadow: 0 3px 10px rgba(0,0,0,0.15);
    }
    h1.h-title, h2.h-title {
      color: #fc0;
      background-color: #600;
      border: none;
      border-bottom: 3px solid #c30;
      padding: 10px 16px;
      margin: 0 0 20px;
      font-size: 1.35rem;
      box-shadow: 0 2px 5px rgba(0,0,0,0.2);
    }

    h3 {
      color: #C30;
      border-left: 5px solid #C30;
      padding-left: 10px;
      margin: 28px 0 12px;
      font-size: 1.15rem;
    }
    .statement {
      background: #ebe9e9;
      border: 1px solid #cdcbcb;
      padding: 20px;
      margin: 15px 0 30px;
      box-shadow: 0 2px 8px rgba(0,0,0,0.06);
    }
    .statement p { margin-bottom: 1em; }
    .statement .date { font-weight: bold; color: #600; }
    .statement .from { font-style: italic; margin-bottom: 12px; }
    .statement .sign { text-align: right; font-weight: bold; margin-top: 20px; }

    .page-top {
      text-align: right;
      margin: 30px 0 10px;
    }
    .page-top a {
      display: inline-block;
      background: #f7f3f3;
      color: #0015ff;
      padding: 8px 16px;
      border-radius: 4px;
      border-bottom: none;
      font-weight: bold;
      font-size: 0.8rem;
    }
    .page-top a:hover {
      background: #900;
      color: #fff;
      text-decoration: none;
    }

    /* サイドバー */
    .sidebar-box {
      background: #efeeee;
      border: 1px solid #ccc;
      margin-bottom: 20px;
      box-shadow: 0 2px 6px rgba(0,0,0,0.08);
    }
    .sidebar-box h3 {
      color: #0f9;
      background-color: #036;
      border: none;
      border-bottom: 2px solid #066;
      margin: 0;
      padding: 10px 14px;
      font-size: 1rem;
    }
    .sidebar-box ul {
      list-style: none;
      padding: 12px 14px;
    }
    .sidebar-box li {
      margin-bottom: 8px;
      padding-left: 14px;
      position: relative;
    }
    .sidebar-box li::before {
      content: "▶";
      position: absolute;
      left: 0;
      color: #036;
      font-size: 0.7rem;
      top: 3px;
    }
    .sidebar-box a {
      border-bottom: 1px dotted #039;
    }
    .lang-box {
      text-align: center;
      padding: 12px;
      font-size: 0.95rem;
    }
    .lang-box a {
      margin: 0 6px;
      border-bottom: none;
    }

    /* フッター */
    .footer {
      background: #262626;
      color: #ccc;
      padding: 25px 15px;
      margin-top: 40px;
      border-top: 4px solid #900;
      font-size: 0.9rem;
    }
    .footer-inner {
      max-width: 1100px;
      margin: 0 auto;
      text-align: center;
    }
    .footer-nav {
      margin-bottom: 15px;
      line-height: 1.8;
    }
    .footer-nav a {
      color: #06959a;
      margin: 0 7px;
      border-bottom: none;
      font-size: 0.9rem;
    }
    .footer-nav a:hover {
      color: #99ffee;
      background: none;
      text-decoration: underline;
    }
    .footer-sns {
      margin: 12px 0;
    }
    .footer-sns a {
      color: #fc0;
      margin: 0 10px;
      border-bottom: none;
    }
    .footer-sns a:hover {
      color: #fff;
      background: none;
    }
    .footer-copy {
      margin-top: 15px;
      color: #888;
      font-size: 0.85rem;
    }
    .footer-copy a {
      color: #06959a;
    }

    /* ===== スマホ対応 + アニメーション ===== */
    @media (max-width: 768px) {
      .header-banner {
        flex-direction: column;
        text-align: center;
      }
      .header-title {
        font-size: 1.25rem;
        padding-right: 55px;
      }
      .header-logo {
        max-width: 240px;
      }
      .menu-toggle {
        display: block;
      }
      .global-nav {
        max-height: 0;
        opacity: 0;
        border-bottom-width: 0;
      }
      .global-nav.open {
        max-height: 600px;
        opacity: 1;
        border-bottom-width: 2px;
      }
      .global-nav ul {
        flex-direction: column;
      }
      .global-nav a {
        border-bottom: 1px solid #0a3a0a;
        text-align: center;
        padding: 14px;
      }
      .container {
        flex-direction: column;
      }
      .sidebar {
        width: 100%;
      }
      .welcome-box {
        flex-direction: column;
      }
      .welcome-image {
        max-width: 100%;
        flex: none;
      }
    }


/* ===== 子メニュー対応 ===== */
.global-nav {
  /* 既存の overflow: hidden; を上書き */
  overflow: visible !important;  /* ← これが最重要 */
}

.global-nav .has-sub {
  position: relative;
}

.global-nav .submenu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 180px;
  background: #111;
  border: 1px solid #0a8f0a;
  z-index: 2000;               /* 高くする */
  list-style: none;
  padding: 0;
  margin: 0;
  box-shadow: 0 8px 20px rgba(0,0,0,0.5);
}

.global-nav .submenu li {
  width: 100%;
  border-bottom: 1px solid #0a3a0a;
}

.global-nav .submenu a {
  display: block;
  padding: 12px 18px;
  color: #06959a;
  text-align: left;
  white-space: nowrap;
}

.global-nav .submenu a:hover {
  background: #0a2a0a;
  color: #99ffee;
}

/* PC：ホバーで表示 */
@media (min-width: 769px) {
  .global-nav .has-sub:hover > .submenu,
  .global-nav .has-sub:focus-within > .submenu {
    display: block;
  }
}

/* スマホ：タップで開閉するためのクラス */
.global-nav .has-sub.open > .submenu {
  display: block;
}

/* スマホ時の見た目調整 */
@media (max-width: 768px) {
  .global-nav {
    overflow: hidden; /* ハンバーガー時は元に戻す */
  }

  .global-nav .submenu {
    position: static;
    background: #0a1a0a;
    border: none;
    box-shadow: none;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
  }

  .global-nav .has-sub.open > .submenu {
    max-height: 300px; /* 必要に応じて調整 */
  }

  .global-nav .submenu a {
    padding-left: 28px;
    font-size: 0.92rem;
  }

  /* 親リンクの見た目（▼を付けるなど） */
  .global-nav .sub-toggle::after {
    content: " ▼";
    font-size: 0.7em;
  }
  .global-nav .has-sub.open .sub-toggle::after {
    content: " ▲";
  }
}