body {
		  margin: 0;
		  font-family: "Helvetica Neue", Arial, "Hiragino Kaku Gothic ProN", "Hiragino Sans", Meiryo, sans-serif;
		  background-color: #fff;
		}
		
		.container {
		  display: flex;
		  min-height: 100vh;
		}
		
		/* サイドバー */
		.sidebar {
		  width: 200px;
		  background-color: #e0e0e0;
		  border-right: 1px solid #ccc;
		}
		
		.sidebar-header {
		  padding: 20px 15px;
		  font-size: 16px;
		  font-weight: bold;
		  text-align: center;
		  line-height: 1.4;
		  border-bottom: 1px solid #ccc;
		}
		
		.sidebar-nav ul {
		  list-style: none;
		  padding: 0;
		  margin: 0;
		}
		
		.sidebar-nav li {
		  padding: 15px;
		  font-size: 14px;
		  cursor: pointer;
		  border-bottom: 1px solid #ccc;
		  text-align: center;
		}
		
		.sidebar-nav li.active {
		  background-color: #ccc;
		  font-weight: bold;
		}
		
		/* メインコンテンツ */
		.main-content {
		max-width: 1200px;
		  flex: 1;
		  padding: 40px;
		}
		
.content-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 20px;
}

.header-left {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
}

.header-left h1 {
  font-size: 20px;
  margin: 0 15px 0 0;
}
		
.sub-title {
  font-size: 14px;
  font-weight: bold;
  margin-right: 20px;
}

.breadcrumb {
  font-size: 14px;
  color: #000;
}