/* 基础容器设置 */
    .about-module {
        max-width: 1000px;
        margin: 50px auto;
        padding: 20px;
        font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
        box-sizing: border-box;
    }

    .about-module * {
        box-sizing: border-box;
    }

    /* 标题样式 */
    .section-title {
        text-align: center;
        color: #333;
        font-size: 32px;
        font-weight: 700;
        margin-bottom: 40px;
        text-transform: uppercase;
        letter-spacing: 1px;
    }

    .section-title span {
        color: #5F50AB; /* 品牌主色调点缀 */
    }

    /* About Us 卡片设计 */
    .about-card {
        background-color: #fff;
        border-radius: 10px;
        padding: 40px;
        margin-bottom: 70px;
        box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
        border: 1px solid transparent;
        transition: all 0.3s ease;
    }

    .about-card:hover {
        border-color: rgba(95, 80, 171, 0.3);
        box-shadow: 0 6px 20px rgba(95, 80, 171, 0.1);
    }

    .about-card p {
        font-size: 16px;
        line-height: 1.8;
        letter-spacing: 0.5px; /* 增加字间距，提升阅读舒适度 */
        color: #666;
        margin-top: 0;
        margin-bottom: 20px;
        text-align: justify;
    }

    /* 调整图片大小并居中 */
    .about-card img {
        max-width: 65%; /* 缩小图片比例 */
        height: auto;
        border-radius: 8px;
        margin: 30px auto 0; /* 顶部留白并居中 */
        display: block;
        box-shadow: 0 4px 12px rgba(0,0,0,0.08); /* 增加一点微投影让图片更有质感 */
    }

    /* 时间轴设计 */
    .timeline-container {
        position: relative;
        margin-left: 20px;
        padding-top: 10px;
        padding-bottom: 20px;
    }

    .timeline-container::before {
        content: '';
        position: absolute;
        left: 0;
        top: 0;
        bottom: 0;
        width: 2px;
        background: rgba(95, 80, 171, 0.2);
    }

    .timeline-item {
        position: relative;
        padding-left: 45px;
        margin-bottom: 30px;
    }

    /* 默认时间轴实心圆点 */
    .timeline-dot {
        position: absolute;
        left: -7px;
        top: 28px;
        width: 16px;
        height: 16px;
        border-radius: 50%;
        background: #5F50AB;
        box-shadow: 0 0 0 4px #fff, 0 0 0 6px rgba(95, 80, 171, 0.2);
        z-index: 2;
    }
    
    /* 针对未来的空心圆点设计 */
    .timeline-dot.future-dot {
        background: #fff;
        border: 4px solid #5F50AB;
        box-shadow: 0 0 0 4px rgba(95, 80, 171, 0.1);
    }

    /* 时间轴内容卡片 */
    .timeline-content {
        background-color: #fff;
        border-radius: 10px;
        padding: 24px 30px;
        box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
        border: 1px solid transparent;
        transition: all 0.3s ease;
    }

    .timeline-content:hover {
        border-color: rgba(95, 80, 171, 0.3);
        box-shadow: 0 6px 20px rgba(95, 80, 171, 0.1);
    }

    .timeline-year {
        font-size: 24px;
        font-weight: 700;
        color: #5F50AB;
        margin-top: 0;
        margin-bottom: 12px;
    }

    .timeline-text {
        font-size: 15px;
        line-height: 1.6;
        letter-spacing: 0.3px; /* 稍微增加时间轴正文字间距 */
        color: #666;
        margin: 0;
    }

    /* 奖项列表样式 */
    .timeline-awards {
        list-style: none;
        padding: 0;
        margin: 15px 0 0 0;
    }

    .timeline-awards li {
        position: relative;
        padding-left: 24px;
        margin-bottom: 8px;
        font-size: 14px;
        color: #444;
        font-weight: 500;
        letter-spacing: 0.3px;
    }

    .timeline-awards li::before {
        content: '';
        position: absolute;
        left: 0;
        top: 0;
        font-size: 14px;
    }

    /* 响应式适配 (移动端) */
    @media screen and (max-width: 768px) {
        .about-module {
            padding: 15px;
            margin: 30px auto;
        }
        .section-title {
            font-size: 26px;
            margin-bottom: 30px;
        }
        .about-card {
            padding: 25px;
            margin-bottom: 50px;
        }
        .about-card p {
            font-size: 15px;
        }
        .about-card img {
            max-width: 100%; /* 手机端图片铺满 */
        }
        .timeline-container {
            margin-left: 10px;
        }
        .timeline-item {
            padding-left: 35px;
        }
        .timeline-content {
            padding: 20px;
        }
        .timeline-year {
            font-size: 20px;
        }
    }