body {
    margin: 0;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f4f6f9;
    color: #333;
}

.header {
    background-color: #76a5d7; /* 修改为新的颜色 */
    color: white;
    text-align: center;
    padding: 20px;
    font-size: 24px;
    font-weight: bold;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.container {
    display: flex;
    flex-direction: row;
    height: calc(100vh - 120px);
}

.sidebar {
    flex: 1;
    background-color: #e9ecef;
}

.main {
    flex: 3;
    display: flex;
    flex-direction: column;
    background-color: white;
    border-radius: 8px;
    margin: 10px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.search-bar {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 15px;
    background-color: #f8f9fa;
    border-bottom: 1px solid #ddd;
    border-radius: 8px 8px 0 0;
    gap: 10px; /* 增加输入框和其他元素之间的间距 */
}.search-bar-container {
    display: flex;
    align-items: center;
    padding: 10px;
    border: 1px solid #ccc; /* 添加边框 */
    border-radius: 8px; /* 圆角 */
    background-color: #ffffff; /* 背景颜色 */
    gap: 5px; /* 内部元素间距 */
}.search-bar input {
    width: 120px; /* 调整输入框宽度 */
    padding: 8px;
    border: 1px solid #ccc;
    border-radius: 4px;
    font-size: 14px; /* 调整字体大小 */
    transition: border-color 0.3s;
}.search-bar input:focus {
    border-color: #007bff;
    outline: none;
}.search-bar span {
    font-size: 14px;
    color: #555; /* 调整固定文本颜色 */
}.search-bar button {
    padding: 8px 16px;
    background-color: #007bff;
    color: white;
    border: none;
    border-radius: 4px;
    font-size: 14px; /* 调整按钮字体大小 */
    cursor: pointer;
    transition: background-color 0.3s;
}.search-bar button:hover {
    background-color: #0056b3;
}.content {
    display: flex;
    flex: 1;
    overflow: hidden;
}.email-list {
    flex: none; /* 取消flex布局的自动调整 */
    width: 300px; /* 固定宽度 */
    background-color: #f8f9fa;
    overflow-y: auto;
    border-right: 1px solid #ddd;
    padding: 10px;
    position: relative;
}.email-body {
    flex: none; /* 取消flex布局的自动调整 */
    width: 800px; /* 固定宽度为800px */
    padding: 20px;
    overflow-y: auto; /* 确保垂直方向出现滚动条 */
    overflow-x: hidden; /* 隐藏水平方向的溢出 */
    background-color: #ffffff;
    border-radius: 0 8px 8px 0;
    word-break: break-all; /* 添加此行以应用word-break样式 */
}.email-list-header {
    font-size: 16px;
    font-weight: bold;
    color: #333;
    margin-bottom: 10px;
    text-align: center;
}.email-item {
    padding: 10px;
    margin-bottom: 8px;
    background-color: white;
    border: 1px solid #ddd;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.3s, box-shadow 0.3s;
    display: flex;
    flex-direction: column;
}.email-item-title {
    font-size: 16px;
    font-weight: bold;
    color: #333;
    margin-bottom: 5px;
}.email-item-time {
    font-size: 14px;
    color: #888;
}.email-item-sender {
    font-size: 14px;
    color: #666;
    margin-top: 5px;
}.email-item:hover {
    background-color: #f1f1f1;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}.email-item.selected {
    background-color: #e0f7fa; /* 高亮背景颜色 */
    border-color: #007bff; /* 高亮边框颜色 */
}.email-body {
    flex: 2;
    padding: 20px;
    overflow-y: auto;
    background-color: #ffffff;
    border-radius: 0 8px 8px 0;
}.email-body h2 {
    font-size: 20px;
    margin-bottom: 10px;
    color: #007bff;
}.email-body p {
    margin: 5px 0;
    font-size: 16px;
}.email-body hr {
    margin: 20px 0;
    border: none;
    border-top: 1px solid #ddd;
}.footer {
    background-color: #76a5d7; /* 修改为新的颜色 */
    color: white;
    text-align: center;
    padding: 10px;
    font-size: 14px;
    box-shadow: 0 -2px 4px rgba(0, 0, 0, 0.1);
}