body {
font-family: Arial, sans-serif;
margin: 0;
padding: 0;
}
a {
text-decoration: none;
}
header {
display: flex;
justify-content: space-between;
align-items: center;
padding: 20px;
background-color: #f8f8f8;
}

header .logo {
margin-left: 10%;
font-size: 24px;
margin-right: auto;
width:10%;
}

header nav {
margin: 0 auto;
width:90%;
}

header nav ul {
list-style: none;
display: flex;
justify-content: center;
padding: 0;
margin: 0;
}

header nav ul li {
margin-right: 150px;
position: relative; /* 为伪元素定位提供上下文 */
}

header nav ul li a {
text-decoration: none;
color: #333;
font-size: 18px;
padding-bottom: 5px; /* 为下划线留出空间 */
}

header nav ul li::after {
content: "";
position: absolute;
width: 20%; /* 下划线宽度为父元素的20% */
height: 2px;
background-color: #4CAF50; /* 下划线颜色 */
bottom: -10px; /* 调整与文本的垂直距离 */
left: 50%; /* 初步将下划线左边定位在父元素的中间 */
transform: translateX(-50%) scaleX(0); /* 使用 translateX(-50%) 进行居中 */
transform-origin: bottom right;
transition: transform 0.3s ease-in-out;
}


header nav ul li:hover::after {
transform: translateX(-50%) scaleX(1);
transform-origin: bottom left;
}

/* 活动状态效果 */
header nav ul li.active::after {
transform: translateX(-50%) scaleX(1);
transform-origin: bottom left;
}
main{
    margin-bottom: 30px;
}
main .search {
text-align: center;
display: flex;
flex-direction: column;
align-items: center;
justify-content: center;
height: 300px; /* 可以根据需要调整高度 */

}

main .search h1 {
font-size: 36px;
margin-bottom: 20px;
color:white;
}
main .search p {
margin:0px;
color:white;
margin-bottom: 20px;
}
main .search-bar {
display: flex;
justify-content: center;
}

main .search-bar input {
width: 300px;
padding: 10px;
font-size: 16px;
border: 1px solid #ccc;
border-radius: 4px 0px 0px 4px;
}

main .search-bar button {
padding: 10px 20px;
font-size: 16px;
border: none;
background-color: #4CAF50;
color: white;
cursor: pointer;
border-radius: 0px 4px 4px 0px;
}

.filter{
max-width: 1400px;
margin:0 auto;
}



main .results {
display: flex;
justify-content: center;
flex-wrap: wrap;
gap: 20px;

}

main .results .result-item {
width: 325px;
border: 1px solid #ccc;
border-radius: 4px;
overflow: hidden;
background-color: #fff;
position: relative;
}

.results .result-item .fudong{
text-align: center;
position: absolute;
top:10px;
right:10px;
width:60px;
height:45px;
line-height: 45px;
background-color: rgba(0, 0, 0, 0.5);
border-radius: 10px;
}
.results .result-item .fudong p{
padding:0px;
margin:0px;
color:white;
}

main .results .result-item img {
width: 100%;
height: auto;
}

main .results .result-item p {
padding: 10px;
font-size: 16px;
color: #333;
}

main .results .result-item span {
display: block;
padding: 10px;
font-size: 14px;
color: #999;
background-color: #f8f8f8;
}

footer {
text-align: center;
padding: 20px;
background-color: #f8f8f8;
font-size: 14px;
color: #666;
}

.results-header {
display: flex; /* 使用 Flexbox 布局 */
justify-content: space-between; /* 将内容分布在两端 */
align-items: center; /* 垂直居中对齐 */
padding: 10px 20px; /* 内边距，根据需要调整 */
}

.results-header h3 {
margin: 0; /* 移除默认外边距 */
font-size: 18px;
color: #333;
}

.results-header p {
margin: 0; /* 移除默认外边距 */
font-size: 16px;
color: #666;
}

.results-header p span {
font-weight: bold;
color: #4CAF50; /* 数字颜色 */
}
.navbar {
    list-style-type: none;
    padding: 0;
    margin: 0;
    background-color: #fff; /* 白色背景色 */
    position: relative;
}
.navbar > li {
    position: relative;
    display: inline-block;
}
.navbar > li > a {
    display: block;
    padding: 10px 15px;
    color: #333;
    text-decoration: none;
    background-color: #fff;
    white-space: nowrap;
}
.navbar > li > a > i::after {
    font-size: 18px;
    margin-left: 10px;
}
.navbar > li > a:hover {
    color: #4CAF50; /* 灰色高亮 */
}
.navbar ul {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    list-style-type: none;
    padding: 0;
    margin: 0;
    background-color: #fff;
    
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1); /* 阴影效果 */
    z-index: 1;
}
.navbar li:hover > ul {
    display: block;
}
.navbar ul li {
    position: relative;
    height:40px;
}
.navbar ul li a {
    padding: 10px 20px;
    background-color: #fff;
    color: #333;
    text-decoration: none;
/*            border-bottom: 1px solid #ddd;*/
    white-space: nowrap;
}
.navbar ul li a:hover {
    background-color: #ccc; /* 灰色高亮 */
}
.navbar ul li > a::after {
    content: '>'; /* 向右箭头 */
    font-size: 12px;
    margin-left: 10px;
}
.navbar ul ul li > a::after {
    content: '>'; /* 向右箭头 */
}
/* 不显示第四层箭头 */
.navbar ul ul ul li > a::after {
    content: ''; /* 去掉箭头 */
}
.navbar ul ul {
    left: 100%;
    top: 0;
    display: none;
}
.navbar ul li:hover > ul {
    display: block;
}
.navbar ul ul ul {
    left: 100%;
    top: 0;
}
/* 自定义宽度 */
.level1 {
    width: 150px;
}
.level2 {
    width: 200px;
}
.level3 {
    width: 250px;
}
.level4 {
    width: 300px;
}
/* 给每层菜单设置相应的类名 */
.navbar > li > ul {
    width: auto; /* 设置为 auto 使其不受父级宽度影响 */
}
.navbar ul ul {
    width: auto;
}
.navbar ul ul ul {
    width: auto;
}
.navbar {
    padding:10px 5px;
}
.results{
    max-width: 1400px;
    margin:0 auto;
}
.content {
    display: flex;
    justify-content: center;
    padding: 40px;
    background-color: #eceff1;
}
.details {
    width: 60%; 
    padding: 20px;
    display: flex;
    justify-content: space-between;
}
.details .text {
    background-color: #ffffff;
    width: 70%;
    font-size: 18px;
    padding:10px;
    color: #333333;
    margin-right: 30px;
}
.details .image {
    padding:30px;
    background-color: #ffffff;
    width: 25%;
    text-align: left;
}
.details .image span{
    font-size: 14px;
    color:#c8c8c8;
}
.details .image img {
    max-width: 100%;
    height: auto;
}
.details .image .download {
    text-align: center;
    margin-top: 10px;
    display: block;
    padding: 10px 20px;
    background-color: #009688;
    color: #ffffff;
    text-decoration: none;
    border-radius: 4px;
    font-size: 16px;
}

.pagination {
  display: inline-block;
  padding-left: 0;
  margin: 20px 0;
  border-radius: 4px;
}
.pagination > li {
  display: inline;
}
.pagination > li > a,
.pagination > li > span {
  position: relative;
  float: left;
  padding: 6px 12px;
  margin-left: -1px;
  line-height: 1.42857143;
  color: #4CAF50;
  text-decoration: none;
  background-color: #fff;
  border: 1px solid #ddd;
}
.pagination > li > a:hover,
.pagination > li > span:hover,
.pagination > li > a:focus,
.pagination > li > span:focus {
  z-index: 2;
  color: #23527c;
  background-color: #eeeeee;
  border-color: #ddd;
}
.pagination > li:first-child > a,
.pagination > li:first-child > span {
  margin-left: 0;
  border-top-left-radius: 4px;
  border-bottom-left-radius: 4px;
}
.pagination > li:last-child > a,
.pagination > li:last-child > span {
  border-top-right-radius: 4px;
  border-bottom-right-radius: 4px;
}
.pagination > .active > a,
.pagination > .active > span,
.pagination > .active > a:hover,
.pagination > .active > span:hover,
.pagination > .active > a:focus,
.pagination > .active > span:focus {
  z-index: 3;
  color: #fff;
  cursor: default;
  background-color: #4CAF50;
  border-color: #4CAF50;
}
.pagination > .disabled > span,
.pagination > .disabled > span:hover,
.pagination > .disabled > span:focus,
.pagination > .disabled > a,
.pagination > .disabled > a:hover,
.pagination > .disabled > a:focus {
  color: #777777;
  cursor: not-allowed;
  background-color: #fff;
  border-color: #ddd;
}
.pagination-lg > li > a,
.pagination-lg > li > span {
  padding: 10px 16px;
  font-size: 18px;
  line-height: 1.3333333;
}
.pagination-lg > li:first-child > a,
.pagination-lg > li:first-child > span {
  border-top-left-radius: 6px;
  border-bottom-left-radius: 6px;
}
.pagination-lg > li:last-child > a,
.pagination-lg > li:last-child > span {
  border-top-right-radius: 6px;
  border-bottom-right-radius: 6px;
}
.pagination-sm > li > a,
.pagination-sm > li > span {
  padding: 5px 10px;
  font-size: 12px;
  line-height: 1.5;
}
.pagination-sm > li:first-child > a,
.pagination-sm > li:first-child > span {
  border-top-left-radius: 3px;
  border-bottom-left-radius: 3px;
}
.pagination-sm > li:last-child > a,
.pagination-sm > li:last-child > span {
  border-top-right-radius: 3px;
  border-bottom-right-radius: 3px;
}