/* 只定义内容区样式，确保与全局样式无冲突 */
        .feature-cards-section {
            padding: 3rem 0 4rem;
            background-color: #ffffff;
        }
        /* 描述文本颜色 #444444 */
        .section-description {
            text-align: center;
            max-width: 780px;
            margin: 0 auto 2.8rem auto;
            font-size: 1.08rem;
            color: #444444;
            line-height: 1.55;
        }
        /* 卡片样式：每块包含图片、标题 (#20477C)、简介 (#333333) */
        .feature-card {
            height: 100%;
        }
        
        /* 图片样式：保持比例美观 */
        .card-img-wrapper {
            margin-bottom: 1.5rem;
        }
        .feature-img {
            width: 100%;
            height: auto;
        }
        
        /* 标题颜色 #20477C */
        .feature-title {
            font-size: 1.45rem;
            font-weight: 700;
            color: #20477C;
            margin-bottom: 0.35rem;
            letter-spacing: -0.2px;
        }
        /* 简介颜色 #333333 */
        .feature-description {
            font-size: 0.96rem;
            color: #333333;
            line-height: 1.5;
            margin-bottom: 0;
            padding: 0 0rem;
        }
        /* 响应式布局：一行3块，平板变成2块，手机变成1块 */
        @media (max-width: 991.98px) {
            .feature-cards-section {
                padding: 2rem 0;
            }
            .feature-title {
                font-size: 1.3rem;
            }
            .feature-description {
                font-size: 0.9rem;
            }
        }
        @media (max-width: 767.98px) {
            .section-description {
                font-size: 0.95rem;
                margin-bottom: 2rem;
            }
            .feature-card {
                padding: 0rem 1rem;
            }
            .feature-img {
                width: 100%;
            }
            .feature-title {
                font-size: 1.2rem;
            }
        }