o;
            padding: 40px 20px;
        }

        section {
            margin-bottom: 60px;
        }

        h2 {
            font-size: 2rem;
            margin-bottom: 30px;
            text-align: center;
            color: #4A90E2;
        }

        /* 特徴セクション */
        .features {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
        }

        .feature {
            flex: 0 0 calc(33.333% - 20px);
            margin-bottom: 4