/* ========================================
 * 共通コンポーネント
 * ======================================== */
 .site-logo {
  min-width: 100px;        /* 消えないように最小幅 */
  flex-shrink: 0;          /* 縮まないようにする */
}

.site-logo img {
display: block;
width: 160px;
height: auto;
}
@media screen and (max-width: 768px) {
.site-logo img {
  width: 120px; /* モバイル用に縮小 */
}
}

.site-logo a {
  color: inherit; /* 親要素の文字色を継承 (初期は白、スクロール後はグレー) */
  text-decoration: none;
  transition: opacity 0.3s ease;
}
.site-logo a:hover {
  opacity: 0.8;
}





/* --- ボタンのスタイルを整理・修正 --- */
.btn {
  display: inline-block;
  padding: var(--space-sm) var(--space-md);
  border-radius: 50px; /* すべてのボタンのデフォルトをカプセル型に */
  font-weight: bold;
  text-align: center;
  transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
  cursor: pointer;
  border: 1px solid transparent;

}

.btn-primary {
  background-color: var(--color-primary);
  color: var(--color-white);
  border-color: var(--color-primary);
}
.btn-primary:hover {
  background-color: var(--color-primary-light-1); /* ホバー時は薄い赤に */
  color: var(--color-white);
  border-color: var(--color-primary-light-1);
}

.btn-secondary {
  background-color: var(--color-gray-medium);
  color: var(--color-white);
  border-color: var(--color-gray-medium);
}
.btn-secondary:hover {
  background-color: var(--color-white); /* ホバー時は背景白に反転 */
  color: var(--color-gray-medium);
  border-color: var(--color-gray-medium);
}

/* ボタンのサイズ調整 */
.btn-large {
  font-size: 1.125rem; /* 18px */
  padding: var(--space-md) var(--space-lg);
  /* border-radius は .btn で設定済み */
}
.btn-small {
  font-size: 1.0rem; /* 16px */
  padding: var(--space-xs) var(--space-sm);
  /* border-radius は .btn で設定済み */
}

.scroll-top {
  position: fixed;
  right: 5rem;
  bottom: 5rem;
  width: 3.5rem;
  height: 3.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 999;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}

.scroll-top img {
  width: 3.5rem;
  height: auto;
}

/* 表示状態 */
.scroll-top.is-visible {
  opacity: 1;
  visibility: visible;
}
@media (max-width: 768px){
  .scroll-top {
    right: 2rem;
    bottom: 2rem;
    width: 2.5rem;
    height: 2.5rem;
  }

}

/* --- ボタンのスタイルここまで --- */

/* ========================================
 * ユーティリティ & ヘルパークラス
 * ======================================== */
 .hamburger-btn {
  display: none;
  width: 36px;
  height: 24px;
  position: relative;
  background: none;
  border: none;
  cursor: pointer;
  z-index: 101;
}
.hamburger-btn span {
  display: block;
  height: 3px;
  width: 100%;
  background-color: var(--color-primary); /* 初期は白 */
  position: absolute;
  left: 0;
  transition: transform 0.3s ease, opacity 0.3s ease, background-color 0.3s ease; /* transitionに追加 */
}


.hamburger-btn span:nth-child(1) { top: 0; }
.hamburger-btn span:nth-child(2) { top: 10px; }
.hamburger-btn span:nth-child(3) { top: 20px; }

.hamburger-btn.is-active span:nth-child(1) {
  transform: translateY(10px) rotate(45deg);
}
.hamburger-btn.is-active span:nth-child(2) {
  opacity: 0;
}
.hamburger-btn.is-active span:nth-child(3) {
  transform: translateY(-10px) rotate(-45deg);
}

@media (max-width: 1024px) {

  .hamburger-btn {
      display: block;
  }

body.no-scroll {
overflow: hidden;
padding-right: 17px;
}

html {
overflow-y: scroll; /* ←任意で併用 */
}



}

@media (max-width: 768px) {
  .hamburger-btn {
    width: 24px;     /* ← 幅を小さく */
    height: 16px;    /* ← 高さも小さく */
  }

  .hamburger-btn span {
    height: 2px;     /* ← 線の太さを細く */
    top: 0;          /* 念のためリセット */
  }

  .hamburger-btn span:nth-child(1) { top: 0; }
  .hamburger-btn span:nth-child(2) { top: 7px; }
  .hamburger-btn span:nth-child(3) { top: 14px; }

  .hamburger-btn.is-active span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }
  .hamburger-btn.is-active span:nth-child(2) {
    opacity: 0;
  }
  .hamburger-btn.is-active span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }
}

/* --- --- */
/* --- セクションボタン --- */
/* ---  --- */

.button-wrapper--center {
  margin-top: var(--space-2xl);
  text-align: center;
}

.btn-base {
  display: inline-flex;
  background-color: var(--color-primary);
  color: #fff;
  padding: var(--space-sm) var(--space-2xl);
  border-radius: 999px;
  text-decoration: none;
  font-weight: bold;
  transition: all 0.2s ease;
  box-shadow: 0 3px 6px rgba(0,0,0,0.2);
  min-width: 180px; /* 両端揃え用に幅確保 */
  justify-content: space-between;
  align-items: center;
}

.btn-base:hover {
  background-color: var(--color-primary-light-2);
  color: var(--color-background-light);
}
.btn-base:active {
  transform: translateY(2px);
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.button-wrapper--left {
  text-align: left;
}

.btn-base .btn-label,
.btn-base .arrow {
  display: inline-block;
}

.arrow{
  font-size: 1rem;
  transition: transform 0.3s ease;
  padding-left: 1rem;
}

.btn-base:hover .arrow {
  transform: translateX(14px);
}

@media (max-width: 768px) {
  .button-wrapper--center {
    margin-top: var(--space-xl);
    text-align: center;
  }
  .button-wrapper--left {
    text-align: center;
  }

}
/* ===============================
   最新のニュースセクション
   =============================== */
   .news-section {
    background-color: var(--color-background-light);
    padding: var(--space-2xl) 0 var(--space-3xl);
  }

  .news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-xl);
    margin-bottom: var(--space-2xl);
  }

  .news-card {
    background-color: #fff;
    padding: 0 ; /* 上のpaddingを0に調整 */
    display: flex;
    flex-direction: column;
    border-radius: 8px;
    overflow: hidden;
    position: relative;
    transition: box-shadow 0.3s ease;
    height: 100%;
  }

  .news-card:hover {
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
  }

  .news-thumbnail {
    width: 100%;
    height: 160px;
    background-color: #ddd;
    margin: 0; /* ← 余白を完全に無くす */
    border-radius: 0; /* ← 角丸除去（必要なら） */
    position: relative;
  }
  /* ラベル配置と見た目調整 */
  .news-label {
    position: absolute;
    top: 0.5rem;
    right: 0.5rem;
    font-size: 0.75rem;
    font-weight: bold;
    color: var(--color-white);
    background-color: var(--color-primary);
    padding: 0.25rem 0.75rem;
    border: 1px solid var(--color-white); /* 白いアウトライン追加 */
    border-radius: 0; /* 角丸を除去 */
    z-index: 2;
  }

  .news-content {
    padding: var(--space-sm);
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
  }

  .news-date {
    font-size: 0.875rem;
    font-weight: bold;
    color: var(--color-primary);
    margin-bottom: var(--space-xs);
  }

  .news-excerpt {
    font-size: 0.9rem;
    color: var(--color-gray-dark);
    line-height: 1.7;
  }

  /* レスポンシブ */
  @media (max-width: 1024px) {
    .news-grid {
      grid-template-columns: repeat(2, 1fr);
    }
  }
  @media (max-width: 768px) {
    .news-grid {
      grid-template-columns: 1fr;
    }

    .news-thumbnail {
      height: 180px;
    }
  }