.container {
            max-width: 800px;
            margin: 0 auto 60px;;
            display: flex;
            gap: 20px;
        }

        /* 左側のメインエリア */
        .main-section {
            flex: 0 0 390px;
            background-color: white;
            border: 2px solid #004896;
        }

        .main-header {
            background-color: #004896;
            color: white;
            padding: 8px 20px;
            font-size: 0.94em;
            font-weight: bold;
        }

        .main-header a {
            color: white;
            text-decoration: none;
        }

        .main-header a:hover {
            opacity: 0.8;
        }

        .main-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
            padding: 20px;
        }

        .main-item {
            display: flex;
            flex-direction: column;
            align-items: flex-start;
            text-decoration: none;
            transition: opacity 0.3s;
            margin-bottom: 40px;
        }

        .main-item:hover {
            opacity: 0.7;
        }

        .main-item-image {
            width: 100%;
            aspect-ratio: 1.5;
            margin-bottom: 10px;
			border: 1px solid #004896;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #004896;
        }

        .main-item-text {
            font-size: 0.9em;
            text-align: left;
        }

        /* 右側のサイドエリア */
        .side-section {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 18px;
            flex: 1;
        }
	.side-item {
            border: 2px solid #004896;
            text-decoration: none;
            color: inherit;
            display: flex;
            flex-direction: column;
            transition: opacity 0.3s;
        }

        .side-item:hover {
            opacity: 0.7;
        }
        .side-header {
            background-color: #004896;
            color: white;
            padding: 8px 15px;
            font-size: 0.9em;
            font-weight: bold;
            text-align: center;
            flex-shrink: 0;
        }
        .side-content {
            flex: 1;
            border-top: 1px solid #004896;
            display: block;
            line-height: 0;
            overflow: hidden;
            min-height: 0;
		}
		.side-content img{
			object-fit: cover;
			display: block;
		}
        /* スマートフォン対応 */
        @media (max-width: 768px) {
            .container {
                flex-direction: column;
                gap: 20px;
            }

            .main-section {
                min-width: 100%;
                width: 100%;
				flex: 0 0 0;
            }

            .main-grid {
                grid-template-columns: repeat(3, 1fr);
                grid-template-rows: repeat(2, 1fr);
                gap: 15px;
                padding: 15px;
            }

            .main-item-text {
                font-size: 12px;
            }

            .side-section {
                width: 100%;
                grid-template-columns: repeat(3, 1fr);
                grid-template-rows: repeat(3, 1fr);
                gap: 15px;
            }

            .side-header {
                font-size: 12px;
                padding: 10px 5px;
            }
        }

        @media (max-width: 480px) {

            .main-grid {
                grid-template-columns: repeat(2, 1fr);
                grid-template-rows: repeat(3, 1fr);
                gap: 10px;
                padding: 10px;
            }

            .side-section {
                gap: 10px;
            }
			.main-item{
	            margin-bottom: 20px;
			}
            .main-item-text {
                font-size: 11px;
            }

			.side-section{
                grid-template-columns: repeat(2, 1fr);
                grid-template-rows: repeat(4, 1fr);
				gap:10px;
	
			}
            .side-header {
                font-size: 11px;
                padding: 8px 3px;
            }
			.side-content img{
			object-fit: cover;
			display: block;
		}
}