body {
    margin: 0;
    font-family: Arial, sans-serif;
}
.header {
    position: fixed;
    top: 0;
    width: 100%;
    background-color: white;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 10px;
    padding-bottom: 10px;
    z-index: 1000;
    min-height: 30px;
}
@media (min-width: 481px) {
    .header {
        max-width: 480px;
        left: 50%;
        transform: translateX(-50%);
    }
}
.header .title {
    text-align: center;
    flex: 1;
}
.titlelogo{
    width: 80px;
}
.header .logout-btn {
    margin-left: auto;
}


.layui-container{
    padding: 15px 0 0 0;
}
.footer {
    position: fixed;
    bottom: 0;
    width: 100%;
    background-color: white;
    box-shadow: 0 -2px 4px rgba(0, 0, 0, 0.1);
    display: flex;
    justify-content: space-around;
    align-items: center;
    padding-bottom: 10px;
    z-index: 1000;
}
@media (min-width: 481px) {
    .footer {
        max-width: 480px;
        left: 50%;
        transform: translateX(-50%);
        box-shadow: 0 -2px 12px rgba(0,0,0,0.08);
    }
}
.footer .nav-btn {
    flex: 1;
    text-align: center;
}
.footer .nav-btn a {
    display: block;
    padding: 10px;
    color: #333;
    text-decoration: none;
    font-size: 14px; /* 修改: 调小文字大小 */
    line-height: 1.2; /* 修改: 调整行高以适应图标的大小 */
}
.footer .nav-btn a:hover {
    color: #ff5722;
}
.footer .nav-btn a.active {
    color: #ff5722;
    font-weight: bold;
}
.btomnav{
    font-size: 10px;
}
.btomicon{
    padding-bottom: 2px !important;
    font-size: 20px !important;
}

.content {
    padding: 60px 0px 60px; /* 顶部和底部留出空间给导航栏 */
}
.content h1,h2,h3,h4,h5,h6,p{
    margin: 5px !important;
}
.content p{
    font-size: 17px;
}
.content h3{
    font-size: 20px;
}
.content h4{
    font-size: 18px;
}

/* 修改水印样式 */
.watermark, .watermark2, .watermark3, .watermark4{
    position: fixed;
    opacity: 0.5; /* 透明度*/
    transform: rotate(45deg);/* 旋转45度*/
    pointer-events: none; /* 防止水印影响页面交互 */
    z-index: 999; /* 确保水印在最上层 */
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    color: #aaa;
    font-size: 20px;
}
.watermark {
    top: 20%;
    width: 50%;
    height: 20%;

}
.watermark2 {
    top: 40%;
    left: 40%;
    width: 50%;
    height: 20%;

}
.watermark3 {
    top: 60%;
    width: 50%;
    height: 20%;

}
.watermark4 {
    top: 80%;
    left: 40%;
    width: 50%;
    height: 20%;
}