/* ===============================
   環坂ヘッダー（固有クラス）
=============================== */
.kansaka-header{
  position: sticky;
  top: 0;
  z-index: 1000;
  backdrop-filter: blur(4px);
  background: rgba(255,255,255,.92);
  border-bottom: 1px solid rgba(0,0,0,.06);
}

.kansaka-header-inner{
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 12px 20px;
}

.kansaka-logo img{
  display: block;
  height: 44px;
  width: auto;
}

/* ---------- ナビ ---------- */
.kansaka-nav ul{
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  align-items: center;
  gap: clamp(14px, 3.5vw, 36px);
  white-space: nowrap;
}

.kansaka-nav a{
  position: relative;
  display: inline-block;
  text-decoration: none;
  color: #1a1a1a;
  font-weight: normal;   /* ← 太字解除 */
  font-family: "Noto Serif JP", "Hiragino Mincho ProN", serif; /* ← フォント維持 */
  font-size: clamp(14px, 1.6vw, 18px);
  letter-spacing: .02em;
  padding: 6px 2px;
  transition: opacity .2s ease;
}
.kansaka-nav a:hover{ opacity: .7; }

/* 下線アニメ */
.kansaka-nav a::after{
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  height: 2px;
  width: 0%;
  background: #000;
  transition: width .25s ease;
  opacity: .8;
}
.kansaka-nav a:hover::after{ width: 100%; }

/* ---------- レスポンシブ ---------- */
@media (max-width: 640px){
  .kansaka-header-inner{ padding: 10px 14px; gap: 14px; }
  .kansaka-logo img{ height: 36px; }
  .kansaka-nav a{ font-size: clamp(13px, 3.6vw, 16px); }
  .kansaka-nav ul{ gap: clamp(10px, 3vw, 18px); }
}

@media (max-width: 360px){
  .kansaka-nav a{ font-size: 12px; }
  .kansaka-logo img{ height: 32px; }
}
.kansaka-header{
  position: fixed;   /* ← fixed に変更 */
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  backdrop-filter: blur(4px);
  background: rgba(255,255,255,.92);
  border-bottom: 1px solid rgba(0,0,0,.06);
}

/* ヘッダー分の高さをコンテンツに余白として確保 */
body{
  margin: 0;
  padding-top: 70px;   /* ヘッダーの高さ分を空ける（高さに合わせて調整） */
  font: 15px/1.6 "Noto Serif JP", "Hiragino Mincho ProN", serif;
  background: #f7f7f5;
  color: #1a1a1a;
}