.postTitle a:hover {
    margin-left: 15px;
}
#topics .postTitle {
    border: 0;
    font-size: 25px; 
}

/* 全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
    background-color: #f5f7fa;
    color: #333;
    line-height: 1.6;
    min-height: 100vh;
}

/* 容器 */
.custom_container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 20px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* 头部 */
.custom_header {
    text-align: center;
    padding: 40px 20px;
    background-color: #ffffff;
    border-radius: 12px;
    margin-bottom: 30px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.custom_title {
    font-size: 2.5rem;
    color: #2c3e50;
    margin-bottom: 10px;
    font-weight: 600;
}

.custom_subtitle {
    font-size: 1.1rem;
    color: #7f8c8d;
}

/* 主内容区域 */
.custom_main {
    flex: 1;
}

/* 卡片网格布局 */
.custom_card_grid {
    display: flex;
    flex-wrap: wrap;
    gap: 24px;
    justify-content: flex-start;
}

/* 卡片样式 */
.custom_card {
    background-color: #ffffff;
    border-radius: 12px;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: flex;
    flex-direction: column;
    flex: 0 1 400px;
    max-width: 400px;
    overflow: hidden;
}

.custom_card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
}

/* 卡片内容 */
.custom_card_content {
    padding: 24px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

/* 卡片标题 */
.custom_card_title {
    font-size: 1.4rem;
    color: #2c3e50;
    margin-bottom: 12px;
    font-weight: 600;
}

/* 卡片描述 */
.custom_card_description {
    font-size: 0.95rem;
    color: #5a6c7d;
    line-height: 1.7;
    margin-bottom: 16px;
    flex: 1;
}

/* 卡片元信息 */
.custom_card_meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: auto;
    padding-top: 12px;
    border-top: 1px solid #ecf0f1;
}

.custom_card_date {
    font-size: 0.85rem;
    color: #95a5a6;
}

/* 卡片链接 */
.custom_card_link {
    font-size: 0.9rem;
    color: #3498db;
    text-decoration: none;
    transition: color 0.3s ease;
}

.custom_card_link:hover {
    color: #2980b9;
}

.custom_card_link:active {
    color: #21618c;
}

/* 页脚 */
.custom_footer {
    text-align: center;
    padding: 30px 20px;
    margin-top: 40px;
    color: #95a5a6;
    font-size: 0.9rem;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .custom_container {
        padding: 15px;
    }

    .custom_card_grid {
        gap: 16px;
    }

    .custom_card {
        flex: 1 1 100%;
        max-width: 100%;
    }

    .custom_card_content {
        padding: 20px;
    }

    .custom_card_title {
        font-size: 1.3rem;
    }
}

@media (max-width: 480px) {
    .custom_card_content {
        padding: 16px;
    }

    .custom_card_title {
        font-size: 1.2rem;
    }

    .custom_card_description {
        font-size: 0.9rem;
    }
}
    .custom_card_title {
        font-size: 1.2rem;
    }

    .custom_card_description {
        font-size: 0.9rem;
    }
}