 /* 核心布局修复 */
    .hansen-main-content {
        padding: 60px 0;
        background-color: #f9f9f9;
    }

    /* 标题居中 */
    .hansen-section-title {
        text-align: center;
        margin-bottom: 50px;
    }
    .hansen-section-title h2 {
        font-size: 32px;
        color: #333;
        margin-bottom: 15px;
        font-weight: bold;
    }
    .hansen-section-title p {
        color: #888;
        font-size: 16px;
    }

    /* 网格居中且自适应 */
    .hansen-video-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(360px, 1fr));
        gap: 30px;
        justify-content: center; /* 确保内容不足一行时也居中 */
    }

    /* 卡片样式优化 */
    .hansen-video-card {
        background: #fff;
        border-radius: 8px;
        overflow: hidden;
        box-shadow: 0 10px 25px rgba(0,0,0,0.08);
        transition: all 0.3s ease;
    }
    .hansen-video-card:hover {
        transform: translateY(-10px);
        box-shadow: 0 15px 35px rgba(0,0,0,0.15);
    }

    /* 视频比例 16:9 */
    .hansen-video-wrapper {
        position: relative;
        padding-bottom: 56.25%;
        height: 0;
        background: #000;
    }
    .hansen-video-wrapper iframe {
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        border: none;
    }

    /* 文字区域 */
    .hansen-video-info {
        padding: 25px;
        text-align: left;
    }
    .hansen-video-info h3 {
        font-size: 20px;
        color: #0056b3;
        margin-bottom: 12px;
        font-weight: 600;
    }
    .hansen-video-info p {
        font-size: 14px;
        color: #666;
        line-height: 1.6;
        margin-bottom: 20px;
        height: 45px; /* 限制高度保持对齐 */
        overflow: hidden;
    }

    /* 按钮 */
    .hansen-case-btn {
        display: inline-block;
        padding: 10px 25px;
        background-color: #0056b3;
        color: #fff !important;
        text-decoration: none;
        border-radius: 4px;
        font-weight: 500;
        transition: background 0.3s;
    }
    .hansen-case-btn:hover {
        background-color: #003d82;
    }

    /* 移动端适配 */
    @media (max-width: 768px) {
        .hansen-video-grid {
            grid-template-columns: 1fr; /* 手机端每行一个 */
        }
        .hansen-section-title h2 {
            font-size: 24px;
        }
    }