body {
  margin: 0;
  font-family: "Yu Gothic", "Hiragino Sans", sans-serif;
  background: #eef3f8;
  color: #222;
}

.container {
  max-width: 900px;
  margin: 0 auto;
  padding: 1rem;
}

/* 万博写真＋タイトル */
.hero-image-wrap {
  position: relative;
}

.hero-image {
  width: 100%;
  border-radius: 10px;
}

.hero-title {
  position: absolute;
  bottom: 20px;
  right: 20px;
  color: white;
  text-shadow: 0 0 8px rgba(0,0,0,0.6);
  text-align: right;
}

.hero-title h1 {
  margin: 0;
  font-size: 2rem;
}

.hero-title p {
  margin: 0;
  font-size: 1.1rem;
}

/* 更新情報 */
.update {
  background: #ffffff;
  padding: 1rem;
  margin-top: 1rem;
  border-left: 6px solid #2a5abf;
  border-radius: 6px;
}

/* コンテンツ一覧 */
.contents {
  background: #ffffff;
  padding: 1rem;
  margin-top: 1rem;
  border-radius: 6px;
}

.content-block {
  margin-bottom: 2rem;
}

.content-block h3 {
  margin-bottom: 0.5rem;
  color: #2a5abf;
}

/* フッター */
.footer {
  text-align: center;
  margin-top: 2rem;
  padding: 1rem;
  color: #666;
}