body {
    position: relative;
}

/* 上面的背景 */

.page-bg-top {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 260px;

    
    background-image: url("../images/background1.png");
    background-repeat: no-repeat;

    /* 水平居中，垂直位置保持原样 */
    background-position: center -150px;

    /* 图片宽度始终适应网页 */
    background-size: 100% 550px;

    opacity: 0.8;
    pointer-events: none;
    z-index: 1;
}

/* 下面的背景 */
.page-bg-bottom {
    position: absolute;
    left: 0;
    bottom: 0;
    width: 100%;
    height: 500px;

    background-image: url("../images/background2.png");
    background-repeat: no-repeat;
    background-position: center bottom;
    background-size: 100% auto;

    opacity: 0.4;
    pointer-events: none;
    z-index: 0;
}

/* 正文必须在背景上面 */
body > .container-fluid {
    position: relative;
}

/* Header 整体在正文上面 */
.Header {
    position: relative;
    z-index: 10000 !important;
}

/* 导航区域 */
.Header .navbar,
.Header .navbar-collapse,
.Header .navbar-nav {
    position: relative;
    z-index: 10001 !important;
}

/* 下拉菜单最高 */
.Header .dropdown-menu {
    position: absolute !important;
    z-index: 100000 !important;
}

/* 正文明确放到导航下面 */
.Content {
    position: relative;
    z-index: 1 !important;
}

.Footer {
    position: relative;
    z-index: 1;
}

.dropdown:hover>.dropdown-menu {
    display: block;
}

.dropdown>.dropdown-toggle:active {
    pointer-events: none;
}

.Header {}

.container-fluid {
    /* display: flex;
  flex-direction: column;
  align-items: stretch;
  justify-content: center; */
}

.Header_img {
    display: flex;
    width: 1500px;
    align-items: center;
    justify-content: space-between;
    transform: translateY(-38px);
    padding: 20px 0px;
    margin: 10px auto;
}

.logo_left {
    display: flex;
}

.logo_left img.xuexiao_logo {
    height: 200px;
    width: auto;
    object-fit: contain;
}

.xueyuan_title {
    font-size: 1.2rem;
    margin-top: 5px;
    font-weight: 400;
}

.xueyuan_logo {
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
}

.footer_logo {
  width: 80px;
  height: 80px;
  object-fit: contain;
}


.xueyuan_logo img {
    height: 63px;
}

.xueyuan_logo_2 {
    margin-left: 5px;
}

.search-group {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    display: -webkit-flex;
    padding: 0 5px;
    -webkit-box-flex: 1;
    -ms-flex: 1;
    flex: 1;
    -webkit-box-pack: end;
    -ms-flex-pack: end;
    justify-content: flex-end;
    margin: 0;
}

.search-input {
    padding: 0 10px;
    height: 30px;
    width: 210px;
    outline: 0;
    border: 1px solid #c6c6c6;
    border-radius: 20px 0 0 20px;
    -webkit-writing-mode: horizontal-tb !important;
    text-rendering: auto;
}

.search-button {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    display: -webkit-flex;
    font-size: 13px;
    -webkit-box-align: center;
    -ms-flex-align: center;
    align-items: center;
    -webkit-align-items: center;
    padding-right: 10px;
    height: 30px;
    outline: 0;
    border: 1px solid #009b4c;
    border-radius: 0 20px 20px 0;
    background: #009688;
    color: #fff;
    line-height: 30px;
    margin: 0;
    padding: 0;
    appearance: auto;
}

.search_right {
    height: 110px;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
}

.dateTip {
    font-size: 1.6rem;
    text-align: right;
    font-weight: bolder;
    color: black;
    display: flex;   
    padding: 10px 28px;
}
.xiaoli {
margin-left:10px;
}
.dateTip a {
    color: black;
}

.mynav {
    background-color: #397d68 !important;
}

.nav-link {
    color: white;
    font-size: 2rem;
}

.navbar-collapse {
    display: flex;
    justify-content: center;
}

.navbar-nav {
    width: 1500px;
    display: flex;
    height: 100%;
    justify-content: space-between;
}

.navbar-nav .nav-item {
    height: 100%;
}

.Content {
    width: 100%;
    display: flex;
    justify-content: center;
    /* margin-bottom: 150px; */
}

.ContentBox {
    width: 1200px;
    min-height: 600px;
}

.footerContent {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 60px;
    width: min(1400px, calc(100% - 80px));
    padding: 24px 0;
}

.details {
    display: flex;
    flex-direction: column;
    justify-content: center;
    flex-shrink: 0;
}

.details h4 {
    margin: 0;
    line-height: 28px;
    font-weight: bolder;
    font-family: inherit;
    font-size: 15px;
}

.footerContent h4 {
    line-height: 28px;
}

.others {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 35px;
    flex: 1;
    max-width: 620px;
    font-size: 15px;
    font-weight: bolder;
}

.others div {
    display: flex;
    align-items: center;
    white-space: nowrap;
}

.others div a {
    display: flex;
    align-items: center;
    color: white;
    text-decoration: none;
    transition: opacity 0.2s ease;
}

.others div a:hover {
    opacity: 0.75;
}

.others div span {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    margin-right: 8px;
}

.others div span svg {
    width: 32px;
    height: 32px;
    margin: 0;
}

.contact {
    display: flex;
    align-items: center;
    flex-shrink: 0;
}

.contactMe {
    display: flex;
    align-items: center;
    margin-left: 0;
}

.contactMe h4 {
    margin: 0 10px 0 0;
    font-size: 15px;
    line-height: 32px;
    font-weight: bolder;
}

.contactMe a {
    display: flex;
    align-items: center;
}

.contactMe svg {
    width: 30px;
    height: 30px;
    margin-left: 8px;
}

footer {
    display: flex;
    width: 100%;
    min-height: 150px;
    background: #397d68;
    color: #fff;
    align-items: center;
    justify-content: center;
}

.others div a {
    color: white;
    text-decoration: none;
}

/*定义滚动条高宽及背景 高宽分别对应横竖滚动条的尺寸*/

::-webkit-scrollbar {
    width: 7px;
    height: 7px;
    background-color: #F5F5F5;
}


/*定义滚动条轨道 内阴影+圆角*/

::-webkit-scrollbar-track {
    box-shadow: inset 0 0 6px rgba(0, 0, 0, 0.3);
    -webkit-box-shadow: inset 0 0 6px rgba(0, 0, 0, 0.3);
    border-radius: 10px;
    background-color: #F5F5F5;
}


/*定义滑块 内阴影+圆角*/

::-webkit-scrollbar-thumb {
    border-radius: 10px;
    box-shadow: inset 0 0 6px rgba(0, 0, 0, .1);
    -webkit-box-shadow: inset 0 0 6px rgba(0, 0, 0, .1);
    background-color: #c8c8c8;
}