@charset "gb2312";
/* 全局重置 & 基础样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
body {
    font-family: "微软雅黑", "PingFang SC", Arial, sans-serif;
    font-size: 14px;
    line-height: 1.6;
    color: #333;
    background-color: #BADFE7; /* 淡蓝色背景 */
    -webkit-text-size-adjust: none;
    padding-top: 0; 
}
a {
    text-decoration: none;
    color: #388087; /* 主深色（#388087） */
    transition: all 0.3s ease;
}
a:hover {
    color: #2a6065; /* 主深色加深 */
}
ul, li {
    list-style: none;
}
img {
    max-width: 100%;
    border: none;
}
table {
    border-collapse: collapse;
    width: 100%;
}
input:focus, textarea:focus {
    outline: none;
}

/* 通用工具类 */
.clear { clear: both; }
.fl { float: left; }
.fr { float: right; }
.tc { text-align: center; }
.tl { text-align: left; }
.tr { text-align: right; }
.fb { font-weight: 600; }




/* 头部样式（移除悬浮放大） */
#head {
    background: #ffffff;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
    padding: 10px 0;
    width: 100%;
    position: fixed;
    top: 0;
    left: 0;
    z-index: 998;
    box-sizing: border-box;
}
.header {
    width: 90%;
    max-width: 1280px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
}
.header .logo-left {
    width: auto;
    max-height: 85px;
    image-rendering: -webkit-optimize-contrast;
    image-rendering: crisp-edges;
    /* 移除悬浮放大的transition */
}
.header .logo-right {
    width: auto;
    max-height: 66px;
    image-rendering: -webkit-optimize-contrast;
    image-rendering: crisp-edges;
    /* 移除悬浮放大的transition */
}
/* 删除悬浮放大的hover样式 */

/* 响应式适配保持不变 */
@media (max-width: 992px) {
    .header .logo-left {
        max-height: 60px;
    }
    .header .logo-right {
        max-height: 45px;
    }
}
@media (max-width: 768px) {
    .header {
        flex-direction: column;
        padding: 5px 0;
    }
    .header .logo-left,
    .header .logo-right {
        max-height: 50px;
    }
    #head {
        padding: 5px 0;
    }
}

/* 修复轮播图间距的核心：调整body的padding-top（原数值过大导致轮播图上移后间距大） */
body {
    padding-top: 90px !important; /* 原120px→90px，适配头部实际高度 */
}




/* 导航栏样式 - 固定在头部图片下方（核心修改） */
#nav {
    background: linear-gradient(90deg, #388087, #2a6065); /* 主深色渐变 */
    position: fixed;
    top: 105px; /* 紧贴头部下方（头部高度约105px） */
    left: 0;
    width: 100%;
    z-index: 999; /* 最高层级 */
    height: 60px;
    line-height: 60px;
}
.nav {
    width: 1280px;
    margin: 0 auto;
}
.nav ul {
    display: flex;
    justify-content: center;
}
.nav a {
    display: block;
    padding: 0 25px;
    height: 60px;
    line-height: 60px;
    color: #ffffff;
    font-size: 17px;
    position: relative;
}
.nav a:hover {
    background: rgba(255,255,255,0.15);
}
.nav a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 4px;
    background: #6FB3B8; /* 主浅色（#6FB3B8） */
    transition: all 0.4s ease;
    transform: translateX(-50%);
    border-radius: 2px;
}
.nav a:hover::after {
    width: 70%;
}

/* 轮播图样式 - 100%生效版 */
#banner {
    width: 1280px;
    margin: 0 auto 25px;
    margin-top: 98px; /* 调整body的padding-top（原数值过大导致轮播图上移后间距大） */
    position: relative;
}
#focus {
    width: 100%;
    height: 450px;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(56,128,135,0.2);
    position: relative;
    background: #f5f9fa;
}
.slider-wrapper {
    width: 100%;
    height: 100%;
    position: relative;
    overflow: hidden;
}
.slider-list {
    width: 200%;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
    transition: left 0.5s ease-in-out; /* 必须保留，时长500ms */
}
.slider-item {
    width: 50%;
    height: 100%;
    float: left;
    position: relative;
}
.slider-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}
.slider-text {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: 40px 50px;
    background: linear-gradient(transparent, rgba(0,0,0,0.6));
    color: #fff;
    z-index: 2;
}
.slider-text h3 {
    font-size: 28px;
    margin-bottom: 10px;
    font-weight: 600;
    text-shadow: 0 2px 4px rgba(0,0,0,0.3);
}
.slider-text p {
    font-size: 18px;
    opacity: 0.9;
    max-width: 800px;
    text-shadow: 0 1px 3px rgba(0,0,0,0.3);
}
/* 轮播箭头 */
.slider-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 10;
    box-shadow: 0 2px 8px rgba(0,0,0,0.2);
    border: none;
    outline: none;
}
.arrow-prev {
    left: 30px;
}
.arrow-next {
    right: 30px;
}
.slider-arrow i {
    font-size: 24px;
    color: #388087;
}
.slider-arrow:hover {
    background: #6FB3B8;
}
.slider-arrow:hover i {
    color: #fff;
}
/* 轮播指示器 */
.slider-dots {
    position: absolute;
    bottom: 30px;
    right: 50px;
    display: flex;
    gap: 15px;
    z-index: 10;
}
.slider-dot {
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: rgba(255,255,255,0.5);
    border: 2px solid #388087;
    cursor: pointer;
    transition: all 0.3s ease;
}
.slider-dot.active {
    background: #388087;
    transform: scale(1.3);
    box-shadow: 0 0 10px rgba(111,179,184,0.8);
}

/* 主内容容器 - 侧边栏左置 */
.dc {
    width: 1280px;
    margin: 0 auto 40px;
    display: flex;
    flex-direction: row;
    gap: 25px;
}

/* 侧边栏样式 - 白色背景 */
#left {
    width: 230px;
    flex-shrink: 0;
    background: #ffffff; /* 白色背景 */
    border-radius: 16px;
    box-shadow: 0 6px 20px rgba(0,0,0,0.07);
    overflow: hidden;
    height: fit-content; 
    min-height: 300px; 
}
.col_left a.home {
    display: block;
    height: 80px;
    line-height: 80px;
    text-align: center;
    font-size: 22px;
    color: #ffffff !important;
    font-weight: 600;
    background: linear-gradient(135deg, #388087, #2a6065); /* 主深色渐变 */
    position: relative;
    overflow: hidden;
    border-bottom: 3px solid #6FB3B8; /* 主浅色（#6FB3B8） */
}
/* 表头流光动画 */
.col_left a.home::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
    animation: shine-header 3s infinite linear;
}
.col_left a:not(.home) {
    display: block;
    height: 65px;
    line-height: 65px;
    text-align: center;
    font-size: 18px;
    color: #388087; /* 主深色文字 */
    border-bottom: 1px solid #e0e0e0; /* 浅灰分隔线，适配白色背景 */
    position: relative;
}
.col_left a:not(.home):last-child {
    border-bottom: none;
}
.col_left a:not(.home):hover {
    background: #f9e8d9;
    color: #388087; 
    font-weight: 500;
    padding-left: 15px;
}
.col_left a:not(.home)::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    width: 4px;
    background: transparent;
    transition: all 0.3s ease;
}
.col_left a:not(.home):hover::before {
    background: #6FB3B8; /* 主浅色装饰线（#6FB3B8） */
}

/* 右侧内容区 - 路径导航与标题同行居右 */
.dc .cleft {
    flex: 1;
    background: #ffffff;
    border-radius: 16px;
    box-shadow: 0 6px 20px rgba(0,0,0,0.07);
    overflow: hidden;
}
/* 第二张图区域：保留原背景色（浅米色） */
.cleft .mHd {
    padding: 25px;
    border-bottom: 1px solid #e0e0e0;
    background: #f9e8d9; /* 保留原浅米色背景，不修改 */
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.cleft .mHd h3 {
    font-size: 22px;
    color: #388087; /* 主深色标题 */
    font-weight: 600;
    display: flex;
    align-items: center;
}
.cleft .mHd h3::before {
    content: '';
    display: inline-block;
    width: 6px;
    height: 22px;
    background: #388087; /* 主深色装饰条 */
    border-radius: 3px;
    margin-right: 12px;
}

/* 路径导航 - 居右+上下对齐 */
.path {
    display: flex;
    align-items: center;
    font-size: 14px;
    color: #388087; /* 主深色文字 */
    line-height: 1.5;
}
.path em {
    display: flex;
    align-items: center;
    font-style: normal;
    font-weight: 500;
    margin-right: 5px;
}
.path em img {
    width: 18px;
    height: 18px;
    margin-right: 5px;
    vertical-align: middle;
}
.path a {
    color: #388087; /* 主深色文字 */
    text-decoration: none;
    margin: 0 3px;
}
.path a:hover {
    color: #6FB3B8; /* 主浅色hover */
    text-decoration: underline;
}
.path span {
    margin: 0 3px;
}

/* 内容区域 */
.dc .sub_body {
    padding: 30px;
}
.dc .sub_show {
    font-size: 16px;
    line-height: 1.8;
    color: #444;
}
.dc .sub_show iframe {
    width: 100%;
    height: 750px;
    border: none;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.05);
}




/* 紧凑对称布局的页脚样式 */
.footer_area {
    background: #388087; /* 匹配截图背景色 */
    color: #ffffff;
    padding: 20px 0;
    margin-top: 50px;
    font-family: "微软雅黑", "PingFang SC", sans-serif;
}
footer .container {
    width: 90%;
    max-width: 1000px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-around; /* 替换space-between，内容均匀分布且向中间靠 */
    flex-wrap: wrap;
    gap: 600px; /* 限制左右区域最小间距，避免太分散 */
}
/* 左侧logo区域 */
footer .container-left {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    flex: 0 1 auto; /* 不拉伸，保持紧凑 */
}
footer .container-left img {
    width: 120px;
}
footer .container-left .college-name {
    font-size: 18px;
    font-weight: 500;
    text-align: center;
}
footer .container-left .college-en {
    font-size: 14px;
    color: #e0e9ea;
}
/* 右侧信息区域 */
footer .container-right {
    text-align: left; /* 改为左对齐，和左侧logo区域视觉呼应 */
    flex: 0 1 auto; /* 不拉伸，保持紧凑 */
}
footer .container-right p {
    margin: 8px 0;
    font-size: 15px;
    line-height: 1.5;
}
/* 版权信息 */
footer .copyright {
    text-align: center;
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 14px;
    color: #d0e0e1;
}
footer .copyright a {
    color: #92c5c8;
    text-decoration: none;
    border-bottom: 1px dotted #92c5c8;
    transition: all 0.3s ease;
}
footer .copyright a:hover {
    color: #fff;
    border-bottom-color: #fff;
}

/* 移动端适配 */
@media (max-width: 768px) {
    footer .container {
        flex-direction: column;
        gap: 20px;
    }
    footer .container-right {
        text-align: center;
    }
}







/* 动画效果 */
@keyframes shine-header {
    0% { left: -100%; }
    100% { left: 100%; }
}

/* 响应式适配 */
@media (max-width: 1280px) {
    #head, .header, .nav, #banner, .dc, footer .container {
        width: 95%;
    }
    #focus {
        height: 400px;
    }
    #nav {
        top: 95px; /* 小屏调整头部高度 */
    }
    #banner {
        margin-top: 170px; /* 小屏调整间距 */
    }
}
@media (max-width: 768px) {
    .dc {
        flex-direction: column;
        gap: 15px;
    }
    #left {
        width: 100%;
        height: auto;
    }
    #focus {
        height: 280px;
    }
    .slider-text h3 {
        font-size: 22px;
    }
    .slider-text p {
        font-size: 14px;
    }
    .slider-arrow {
        width: 40px;
        height: 40px;
    }
    .nav ul {
        flex-wrap: wrap;
    }
    .nav a {
        padding: 0 15px;
        height: 55px;
        line-height: 55px;
        font-size: 16px;
    }
    .dc .sub_show iframe {
        height: 500px;
    }
    .cleft .mHd {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }
    #nav {
        top: 85px; /* 移动端调整头部高度 */
        height: 55px;
        line-height: 55px;
    }
    #banner {
        margin-top: 150px; /* 移动端调整间距 */
    }
}