/* Import Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+SC:wght@100..900&display=swap');

/* Reset styles */
html, body {
    height:auto;
    margin: 0;
    padding: 0;
    overflow-x: hidden; /* 禁止横向滚动 */
    overflow-y: auto; /* 允许垂直滚动 */
}

body {
    font-family: 'Helvetica', sans-serif; /* 使用 Helvetica 字体 */
    color: #333;
    background-color: #fff;
}

/* Header styles */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    display: flex;
    align-items: center;
    padding: 10px 20px;
}

.logo {
    width: 60px;
    margin-right: 20px;
}


nav {
    flex-grow: 1;
    display: flex;
    align-items: center;
}

nav ul {
    list-style: none;
    display: flex;
    margin: 0;
    padding: 0;
    justify-content: center;
    align-items: center;
    margin-top: 5px;
}

nav ul li {
    margin-left: 20px;
}

nav ul li:first-child {
    margin-left: 0;
}

nav ul li a {
    position: relative; /* 相对定位，让伪元素基于 a 元素定位 */
    text-decoration: none;
    font-family: "Helvetica", sans-serif;
    font-weight: 700;
    font-size: 10px;
    padding-bottom: 5px; /* 为下划线留出空间 */
    color: rgb(58, 58, 58);
}

nav ul li a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 1px; /* 下划线的高度 */
    background-color: #333; /* 下划线的颜色 */
    left: 0;
    bottom: 0;
    transition: width 0.3s ease-in-out; /* 添加过渡效果 */
    transform: scaleX(0);
    transform-origin: bottom left;
}

nav ul li a:hover::after {
    width: 100%;
    transform: scaleX(1); /* 悬停时展开下划线 */
}

nav ul li a.clicked::after, 
nav ul li a.active::after {
    width: 100%;
    transform: scaleX(1); /* 点击时保持下划线 */
}


/* 确保图片容器居中 */
a {
    display: block;
    text-align: center;
}

/* 确保图片在容器中居中 */
a img {
    display:inline-block;
    max-width: 100%; /* 使图片适应容器宽度 */
    height: auto;    /* 保持图片的纵横比 */
}


/* Main content styles */
main {
    padding: 0; /* 去掉之前的 padding 设置 */
}
body {
    margin: 0;
    padding: 0;
}

.container {
    display: flex;
    justify-content: space-between;
    padding: 10px;
}

.box {
    width: 18%;
    background: #f0f0f0;
    border: 1px solid #ddd;
    box-sizing: border-box;
    text-align: center;
}

.box img {
    width: 100%;
    height: auto;
}

.box p {
    margin: 10px 0;
    font-size: 14px;
}

.table-container {
    display: flex;
    flex-wrap: wrap; /* 允许元素换行 */
    justify-content: space-between; /* 元素之间均匀分布 */
    gap: 0; /* 让单元格之间没有间距 */
    width: 100%; /* 容器占据全部宽度 */
    margin-top: 100px;
    
}

.table-container a {
    text-decoration: none; /* 去掉下划线 */
    color: inherit; /* 继承父元素的字体颜色 */
}

.table {
    flex: 1 1 calc(20%); /* 每行5个单元格，均分宽度 */
    max-width: calc(20%); /* 控制单元格的最大宽度 */
    border: 0.5px solid rgb(147, 147, 147);
    background: #fff;
    text-align: center;
    padding: 0; /* 取消内边距 */
    box-sizing: border-box;
    position: relative;
    height: 550px; /* 设置表格的高度，按需调整 */
    overflow: hidden; /* 隐藏超出的内容 */
}

.table img {
    width: 100%;
    height: auto;
}

@media (max-width: 768px) {
    .table {
        flex: 1 1 calc(50% - 10px); /* 适应较小屏幕的两列布局 */
        max-width: calc(50% - 10px);
    }
}

.small-title{
    font-family: "Helvetica", sans-serif;
    font-size: 10px;
    margin-top: 10px;
    text-align: center;
    font-weight: 1000;
}

.big-title{
    font-family: "Helvetica", sans-serif;
    font-size: 30px;
    margin-top: 10px;
    text-align: center;
    font-weight: 500;
    max-width: 100%; /* 你可以根据需要调整这个值，控制文字换行的宽度 */
    word-wrap: break-word; /* 保证长单词在超出宽度时换行 */
}

.small-text{
    display: block;
    font-family: "Helvetica", sans-serif;
    font-size: 10px;
    text-align: center;
    font-weight: 580;
    
}

.creator-text {
    position: absolute;
    bottom: 10px;
    left: 0;
    right: 0;
    text-align: center;
    font-family: "Helvetica", sans-serif;
    font-size: 10px;
    text-align: center;
    font-weight: 580;
}

/* Footer styles */
footer {
    position: fixed;
    height: 12px;
    bottom: 0;
    left: 0;
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: #f8f8f8;
    border-top: 1px solid #ddd;
    font-size: 8px;
    font-weight: 400;
    padding: 0;
    padding-bottom: 0px;
}


.back-link
{
    
    font-size: 10px;
    text-decoration: none; /* 去掉下划线 */
    color: #000000; /* 设置链接颜色 */
    font-weight: 1000;
    transition: color 0.3s ease; /* 鼠标悬停时颜色过渡效果 */
    animation: fadeInUp 1.5s ease-out; /* 1.5秒淡入动画 */
    margin-top: 40px;
    text-align: center;
    padding: 5px 10px; /* 增加内边距，使椭圆圈更明显 */
    display: flex; /* 让元素根据内容大小调整自身宽度 */
    justify-content: center; /* 垂直居中 */
    margin: 200px auto; /* 自动左右边距使容器水平居中 */
    width: 1000px;
    line-height: 1;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px); /* 从30px的下方开始 */
    }
    to {
        opacity: 1;
        transform: translateY(0); /* 逐渐移动到原始位置 */
    }
}



/* Thumbnail Image */
.thumbnail {
    display: block;
    width: 300px; /* Adjust size as needed */
    height: auto;
    transition: 0.3s;
}

.thumbnail:hover {
    filter: grayscale(100%); /* Gray out image on hover */
}

.thumbnail:hover + .overlay {
    opacity: 1;
}

/* Overlay with Zoom Icon */
.overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5); /* Semi-transparent background */
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    transition: opacity 0.3s;
}

.zoom-icon {
    color: white;
    font-size: 24px;
}


.popup-link {
    position: relative;
    display: inline-block;
    cursor: pointer; /* 手型指针，表示可点击 */
}


/* Popup Overlay */
.popup-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    display: none; /* 初始隐藏 */
    justify-content: center;
    align-items: center;
    z-index: 1000; /* 确保弹出窗口在最前方 */
}

.popup-link:hover .overlay {
    opacity: 1; /* 悬停时显示放大图标的背景 */
}

 /* Popup Content */
 .popup-content {
    position: relative;
    max-width: 90%;
    max-height: 80%;
}

.popup-content img {
    height:600px;
    display: block;
    
}

/* Close Button */
.close {
    position: absolute;
    top: 10px;
    right: 15px;
    color: white;
    text-decoration: none;
    cursor: pointer;
    font-size: 20px;
}