* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: 'Segoe UI', 'Hiragino Sans', 'Yu Gothic', sans-serif;
            background-color: #f5f5f5;
            padding: 20px;
        }

        #newscontainer {
            max-width: 800px;
            margin: 40px auto;
            background-color: #ffffff;
            border-radius: 10px;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
            padding: 30px;
        }

        #newscontainer h2 {
            font-size: 24px;
            color: #333;
            text-align: center;
            margin-bottom: 25px;
            padding-bottom: 15px;
            border-bottom: 3px solid orange;
        }

        #whatsnewtext {
            line-height: 1.8;
        }

        #content {
            font-size: 16px;
            color: #555;
        }

        #content a {
            display: block;
            padding: 15px;
            margin-bottom: 10px;
            background-color: #f9f9f9;
            border-left: 4px solid orange;
            text-decoration: none;
            color: #333;
            border-radius: 4px;
            transition: all 0.3s ease;
        }

        #content a:hover {
            background-color: #e8f5e9;
            border-left-color: #2e7d32;
            transform: translateX(5px);
        }

        #content span[style*="color: red"] {
            background-color: gray;
            color: #fff !important;
            padding: 3px 8px;
            border-radius: 3px;
            font-size: 1.2rem;
            font-weight: bold;
            margin-right: 8px;
        }

        /* レスポンシブ対応 */
        @media (max-width: 768px) {
            #newscontainer {
                margin: 20px auto;
                padding: 20px;
            }

            #newscontainer h2 {
                font-size: 20px;
            }

            #content {
                font-size: 14px;
            }
        }