.search-btn {
    padding: 2.22vw;
    border-left: 2px solid #f2f2f2;}

.search-btn img {
    width: 1.11vw;
    height: 1.11vw;
    cursor: pointer;}

/* 搜索蒙层 */
.search-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    display: none;}

.search-container {
    background-color: transparent;
    padding: 0;
    border-radius: 0;
    box-shadow: none;
    width: 50vw;
    max-width: 800px;
    text-align: center;}

.search-input-container {
    display: flex;
    align-items: center;
    background-color: white;
    border-radius: 4px;
    overflow: hidden;}

.search-input {
    flex: 1;
    padding: 1.39vw;
    font-size: 9pt;
    border: none;
    border-radius: 4px 0 0 4px;
    margin-bottom: 0;
    outline: none;}

.search-submit {
    padding: 1.39vw 1.39vw;
    color: white;
    border: none;
    border-radius: 0 4px 4px 0;
    font-size: 9pt;
    cursor: pointer;
    margin-right: 0;
    display: flex;
    align-items: center;
    justify-content: center;}

.search-submit img {
    width: 1.11vw;
    height: 1.11vw;}
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;}

body {
    font-family: 'Noto Sans SC', "思源黑体";
    font-weight: 400;
    color: #383838;
    background-color: #f5f5f5;
    overflow-x: hidden;
    min-width: 1440px;}

.container {
    margin: 0 auto;}

/* 头部 */
header {
    background-color: #fff;
    position: sticky;
    top: 0;
    z-index: 1000;}

/* 导航栏 */
nav {
    height: 6vw;
    background-color: #fff;}

.nav-container {
    display: grid;
    grid-template-columns: 4fr 15fr 1fr;
    justify-items: center;
    align-items: center;
    height: 100%;
    width: 100%;}

.nav-right {
    display: flex;
    align-items: center;}

.search-btn {
    padding: 2.21vw;
    border-left: 2px solid #f2f2f2;}

.search-btn img {
    width: 1.11vw;
    height: 1.11vw;
    cursor: pointer;}

/* 搜索蒙层 */
.search-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    display: none;}

.search-container {
    background-color: transparent;
    padding: 0;
    border-radius: 0;
    box-shadow: none;
    width: 50vw;
    max-width: 800px;
    text-align: center;}

.search-input-container {
    display: flex;
    align-items: center;
    background-color: white;
    border-radius: 4px;
    overflow: hidden;}

.search-input {
    flex: 1;
    padding: 1.39vw;
    font-size: 9pt;
    border: none;
    border-radius: 4px 0 0 4px;
    margin-bottom: 0;
    outline: none;}

.search-submit {
    padding: 1.39vw 1.39vw;
    color: white;
    border: none;
    border-radius: 0 4px 4px 0;
    font-size: 9pt;
    cursor: pointer;
    margin-right: 0;
    display: flex;
    align-items: center;
    justify-content: center;}

.search-submit img {
    width: 1.11vw;
    height: 1.11vw;}

.search-close {
    position: absolute;
    top: 2.78vw;
    right: 2.78vw;
    padding: 0.69vw;
    background-color: rgba(255, 255, 255, 0.8);
    color: #333;
    border: none;
    border-radius: 50%;
    font-size: 9pt;
    cursor: pointer;
    width: 3.47vw;
    height: 3.47vw;
    display: flex;
    align-items: center;
    justify-content: center;}

.logo {
    display: flex;
    align-items: center;
    border-right: 2px solid #f2f2f2;}

.logo img {
    height: 2.22vw;
    margin: 1.74vw 2.22vw;}

.nav-menu {
    display: flex;
    list-style: none;
    height: 100%;}

.nav-menu > li {
    display: flex;
    align-items: center;
    padding: 1vw;
    margin: 1.15vw 1.78vw;
    position: relative;}

.nav-menu > li > a {
    display: flex;
    align-items: center;
    height: 100%;
    color: #383838;
    text-decoration: none;
    font-size: 12pt;
    transition: color 0.3s;}

.nav-menu > li:hover {
    color: #023bcc;
    border-bottom: 4px solid #023bcc;}

/* 下拉菜单 */
.sub-menu {
    position: absolute;
    top: 145%;
    left: -1.78vw;
    background-color: #fff;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    list-style: none;
    display: none;
    min-width: 8.89vw;
    border-top: 1px solid #023bcc;
    z-index: 1001;}

.nav-menu > li.active > .sub-menu {
    display: block;}

.sub-menu li a {
    display: block;
    width:100%;
    padding: 1.2vw;
    color: #383838;
    text-decoration: none;
    text-align: center;
    font-size: 12pt;
    transition: background-color 0.3s;
    border-bottom: 1px solid #f2f2f2;}

.sub-menu li a:hover {
    background-color: #f0f0f0;}

/* 轮播图 */
.carousel {
    position: relative;
    height: 27.778vw;
    overflow: hidden;}

.carousel-item {
    min-width: 100%;
    height: 100%;}

.carousel-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;}

/* 内容区域 */
.content {
    width: 100%;
    padding-top: 1.389vw;
    overflow: hidden;
    background-image: url(images/picture/content_bg.png);
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;}

.section {
    width: 83%;
    padding: 1.389vw;
    margin: 0 auto;}

/* 底部 */
footer {
    color: #808080;}

.footer-background {
    width: 100%;
    height: 34.722vw;
    background-image: url(images/picture/btimg.png);
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr 1fr 1fr;
    gap: 2.778vw;
    padding: 3.472vw 1.389vw 1.389vw 1.389vw;
    width: 83%;
    margin: 0 auto;}

.footer-logo {
    display: flex;
    align-items: center;
    margin-bottom: 1.389vw;}

.footer-logo img {
    height: 4.583vw;
    width: 22.222vw;
    margin-right: 1.389vw;}

.footer-qrcode {
    display: flex;
    align-items: center;
    margin-top: 1.389vw;}

.footer-qrcode img {
    height: 6.944vw;
    width: 6.944vw;
    margin-right: 2.361vw;}

.footer-logo h2 {
    font-size: 15pt;
    font-weight: bold;}

.footer-info {
    font-size: 12pt;
    letter-spacing: 0.8px;
    line-height: 1.5;}

.footer-links h3 {
    font-size: 12pt;
    margin-bottom: 1.041vw;
    letter-spacing: 1px;
    color: #383838;}

.footer-links ul {
    list-style: none;}

.footer-links li {
    margin-bottom: 0.694vw;}

.footer-links a {
    color: #808080;
    text-decoration: none;
    transition: color 0.3s;
    letter-spacing: 0.8px;
    font-size: 10.5pt;}

.footer-links a:hover {
    color: #808080;}

.footer-bottom {
    text-align: center;
    padding-top: 1.389vw;
    font-size: 10.5pt;
    letter-spacing: 0.8px;
    color: #999;
    padding: 1.389vw;}

/* 学院概况页面样式 */
.college-section {
    padding: 0;}

.college-container {
    display: flex;
    width: 100%;
    margin-bottom: 13.89vw;}

.college-nav {
    width: 13.889vw;
    min-height: 34.722vw;
    padding: 0 2.083vw 2.083vw 2.083vw;}

.college-nav-header {
    background-color: #023bcc;
    padding: 1.041vw;
    color: #ffffff;
    font-size: 18pt;
    text-align: center;
    margin-bottom: 1.111vw;}

.college-nav ul {
    list-style: none;
    padding: 0;
    margin: 0;}

.college-nav li {
    position: relative;}

.college-nav a {
    display: block;
    padding: 1.111vw;
    color: #383838;
    text-decoration: none;
    font-size: 12pt;
    transition: all 0.3s;
    background-color: white;
    position: relative;}

.college-nav a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 5%;
    width: 8.75vw;
    height: 1px;
    background-color: rgba(229, 229, 229, 1);}

.college-nav .sub-menu {
    position: absolute;
    top: 0;
    left: 100%;
    width: 11.806vw;
    background-color: white;
    list-style: none;
    padding: 0;
    margin: 0;
    display: none;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    z-index: 1000;}

.college-nav .sub-menu li {
    margin-bottom: 0;}

.college-nav .sub-menu a {
    font-size: 9pt;
    padding: 1.25vw;
    text-align: center;
    font-weight: 400;
    letter-spacing: 0px;
    vertical-align: top;
    background-color: #f7f7f7;}

.college-nav .sub-menu a::after{
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%; /* 居中 */
    transform: translateX(-50%);
    width: 8.75vw; /* 自定义长度 */
    height: 1px; /* 边框粗细 */
    background: rgba(229, 229, 229, 1);}

.college-nav .sub-menu a:hover {
    color: #023bcc;
    background-color: #f7f7f7;}

.college-nav ul:hover li:not(:hover) a.active + .sub-menu {
    display: none;}

.college-nav li:hover .sub-menu {
    display: block;}

.college-nav li a.active + .sub-menu {
    display: block;}

.college-nav a.active {
    color: #023bcc;
    background-color: #f7f7f7;}

.college-nav a:hover {
    color: #023bcc;
    background-color: #f7f7f7;}

.college-content {
    flex: 1;
    background-color: white;
    padding: 2.0833vw;}

.breadcrumb {
    font-size: 13.5pt;
    color: #666;}

.breadcrumb a {
    color: #666;
    text-decoration: none;}

.breadcrumb .current {
    color: #002fa7;}

.college-content h2 {
    font-size: 15pt;
    color: #383838;
    margin: 0;}

.college-content h3{
    font-size: 13.5pt;
    color: rgba(56, 56, 56, 1);
    margin-bottom: 3.472vw;
    text-align: center;}

.college-content p {
    line-height: 1.8;
    color: #808080;
    font-size: 12pt;
    margin: 0 0 1.0417vw 0;}

.college-content p:last-child {
    margin-bottom: 0;}

.content-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid rgba(166, 166, 166, 1);
    padding-bottom: 1.111vw;
    margin-bottom: 3.472vw;}

/* 文件列表样式 */
.file-list {
    margin-top: 2.083vw;}

.file-table {
    width: 100%;
    border-collapse: collapse;}

.file-table th {
    background-color: #f5f5f5;
    padding: 1.0417vw;
    text-align: left;
    border-bottom: 2px dashed #e0e0e0;
    font-weight: bold;
    color: #383838;}

.file-table td {
    padding: 1.0417vw;
    border-bottom: 1px dashed #e0e0e0;}

.file-table tr:hover {
    background-color: #f9f9f9;}

.file-table a {
    color: #383838;
    text-decoration: none;
    transition: color 0.3s;}

.file-table a:hover {
    color: #002fa7;}

/* 分页样式 */
.pagination {
    margin-top: 2.083vw;
    text-align: center;}

.pagination span {
    margin: 0 0.694vw;
    color: #a6a6a6;}

.pagination a {
    display: inline-block;
    padding: 0.347vw 0.694vw;
    margin: 0 0.347vw;
    color: #a6a6a6;
    text-decoration: none;
    border: 1px solid #e0e0e0;
    transition: all 0.3s;}

.pagination a:hover {
    background-color: #f5f5f5;}

.pagination a.active {
    background-color: #002fa7;
    color: #fff;
    border-color: #002fa7;}