@charset "utf-8";

:root {
    --wine: #7b051e;
    --paper: #f7f6f2;
    --content-width: 1400px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 90px; }
body { font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif; color: #333; background: var(--paper); }
button, a { -webkit-tap-highlight-color: transparent; }
a:focus-visible, button:focus-visible, .experiment-card:focus-visible { outline: 3px solid #bd4765; outline-offset: 5px; }
.container { width: min(var(--content-width), calc(100% - 64px)); margin: 0 auto; }

.site-header { height: 76px; background: #fff; position: relative; z-index: 10; }
.header-inner { height: 100%; display: flex; align-items: center; justify-content: space-between; gap: 32px; }
.brand { display: flex; align-items: center; gap: 17px; flex-shrink: 0; }
.university-logo { width: 181px; height: 51px; object-fit: contain; }
.platform-name { width: 307px; height: 23px; object-fit: contain; }
.primary-nav { display: flex; align-items: center; gap: 38px; white-space: nowrap; font-size: 14px; }
.primary-nav a { color: #3b3b3b; transition: color .18s; }
.primary-nav a:hover { color: var(--wine); }
.primary-nav .login-link { border: 0; font: inherit; color: #fff; background: var(--wine); min-width: 112px; height: 40px; display: flex; align-items: center; justify-content: center; border-radius: 5px; margin-left: -18px; }
.primary-nav .login-link:hover { color: #fff; background: #a21b3c; }
.menu-toggle { display: none; }

.hero { width: 100%; height: calc(100vw * 730 / 1920); overflow: hidden; }
.hero > img { width: 100%; height: auto; display: block; }
.section-title { text-align: center; line-height: 1; font-size: 0; }
.section-title img { width: 325px; height: 68px; object-fit: contain; }
.resources { padding-top: 34px; padding-bottom: 84px; background: url("/vlab_files/img/图层 512.png") center bottom / 100% auto no-repeat; }
.resource-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); width: 101.7143%; margin-left: -2%; margin-top: 6px; }
.resource-card { position: relative; display: block; width: 103.9326%; aspect-ratio: 370 / 400; background: url("/vlab_files/img/图层 554 拷贝.png") center / 100% 100% no-repeat; transition: transform .2s; }
.resource-card:hover { transform: translateY(-5px); }
.resource-card h2 { position: absolute; left: 21.3514%; top: 19%; width: 67.027%; font-size: 20px; line-height: 1.3; font-weight: 700; color: #303030; }
.resource-image { position: absolute; left: 21.0811%; top: 38.5%; width: 61.6216%; aspect-ratio: 228 / 152; object-fit: cover; }

.teaching-data { padding-bottom: 107px; }
.teaching-diagram { position: relative; aspect-ratio: 1400 / 650; margin-top: 29px; }
.teaching-orbit { position: absolute; left: 28.8571%; top: 0; width: 41.4286%; height: auto; }
.metric { position: absolute; width: 26.3571%; height: 16.9231%; border: 1px solid #d8a6af; border-radius: 10px; background: #fff; display: flex; align-items: center; justify-content: center; line-height: 1; }
.metric dt, .metric dd > span { font-size: 22px; font-weight: 400; }
.metric dd { display: flex; align-items: baseline; }
.metric dd strong { font-size: 64px; font-family: Arial, sans-serif; font-style: italic; font-weight: 400; line-height: 1; }
.metric > img { position: absolute; width: 22.2222%; height: auto; top: 12.7273%; }
.metric-course { left: 12.6429%; top: 10.9231%; padding-right: 31px; }
.metric-discipline { left: 60.3571%; top: 10.9231%; padding-left: 28px; }
.metric-major { left: 6%; top: 46.3077%; padding-right: 27px; }
.metric-base { left: 64.7143%; top: 46.9231%; padding-left: 30px; }
.metric-users { left: 37.2857%; top: 82.4615%; padding-top: 7px; }
.metric-course > img, .metric-major > img { right: -11.1111%; }
.metric-discipline > img, .metric-base > img { left: -11.1111%; }
.metric-users > img { left: 38.8889%; top: -55.4545%; }

.experiments { position: relative; isolation: isolate; padding-bottom: 108px; }
.experiments::before { content: ""; position: absolute; inset: 0; z-index: -1; background: url("/vlab_files/img/虚拟实验 .png") center 61px / 100% auto no-repeat; pointer-events: none; }
.experiment-gallery { margin-top: 48px; display: flex; gap: 18px; height: 445px; }
.experiment-card { position: relative; flex: 1; min-width: 0; height: 100%; overflow: hidden; border-radius: 10px; background: var(--wine); transition: flex .45s ease; }
.experiment-card.is-active { flex: 2.8; }
.experiment-card > img { display: block; width: 100%; height: 100%; object-fit: cover; }
.experiment-card::after { content: ""; position: absolute; inset: 0; background: linear-gradient(to bottom, rgba(123, 5, 30, .32) 3%, rgba(123, 5, 30, .36) 22%, rgba(123, 5, 30, .52) 45%, rgba(123, 5, 30, .76) 67%, rgba(123, 5, 30, .924) 90%, rgba(123, 5, 30, .97) 100%); }
.experiment-card:first-child::after { background: linear-gradient(to bottom, rgba(123, 5, 30, .188) 3%, rgba(123, 5, 30, .246) 22%, rgba(123, 5, 30, .486) 45%, rgba(123, 5, 30, .768) 67%, rgba(123, 5, 30, .89) 90%, rgba(123, 5, 30, .97) 100%); }
.experiment-copy { position: absolute; left: 20px; right: 20px; bottom: 63px; color: #fff; z-index: 1; }
.experiment-copy h3 { font-size: 18px; line-height: 1.2; font-weight: 400; }
.experiment-copy p { margin-top: 12px; font-size: 13px; line-height: 1.7; color: #ebc3ca; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; opacity: 0; transition: opacity .2s; }
.experiment-card.is-active .experiment-copy p { opacity: 1; }

.footer-links-section { height: 291px; background: url("/vlab_files/img/未标题-2.png") center / 100% 100% no-repeat; }
.footer-links-inner { position: relative; height: 100%; display: flex; align-items: flex-start; justify-content: space-between; }
.related-links { margin-top: 37px; width: 435px; display: flex; flex-direction: column; gap: 5px; }
.related-links a { background: url("/vlab_files/img/图层 505 拷贝 4.png") center / 100% 100% no-repeat; min-height: 59px; display: flex; align-items: center; justify-content: center; font-size: 16px; color: #3b3b3b; }
.related-links a:hover { color: var(--wine); }
.footer-qr { width: 113px; height: 113px; object-fit: contain; margin: 85px 64px 0 0; }
.footer-meta { min-height: 100px; background: #313234; color: #ccc; font-size: 14px; line-height: 1.7; }
.footer-meta-inner { display: flex; align-items: center; justify-content: space-between; min-height: 100px; gap: 32px; }

@media (min-width: 1921px) {
    .hero { height: 730px; }
    .hero > img { width: 1920px; margin: 0 auto; }
}

@media (max-width: 1463px) and (min-width: 901px) {
    .container { width: calc(100% - 64px); }
    .resources { padding-top: 28px; padding-bottom: 78px; }
    .resource-card h2 { font-size: 1.35vw; }
    .metric dt, .metric dd > span { font-size: clamp(14px, 1.503vw, 22px); }
    .metric dd strong { font-size: clamp(38px, 4.375vw, 64px); }
    .teaching-data { padding-bottom: 80px; }
    .experiments { padding-bottom: 85px; }
    .experiment-gallery { height: calc((100vw - 64px) * 445 / 1400); gap: 16px; }
    .experiment-copy { left: 17px; right: 17px; bottom: 45px; }
    .experiment-copy h3 { font-size: 16px; }
    .header-inner { gap: 20px; }
    .brand { gap: 13px; }
    .university-logo { width: 160px; height: auto; }
    .platform-name { width: 260px; height: auto; }
    .primary-nav { gap: 25px; }
    .primary-nav .login-link { margin-left: 0; }
}

@media (max-width: 1100px) and (min-width: 901px) {
    .university-logo { width: 145px; }
    .platform-name { width: 230px; }
    .primary-nav { gap: 19px; font-size: 13px; }
    .primary-nav .login-link { min-width: 94px; }
    .experiment-copy { bottom: 32px; }
    .experiment-copy h3 { font-size: 14px; }
    .experiment-copy p { font-size: 11px; }
}

@media (max-width: 900px) {
    html { scroll-padding-top: 80px; }
    .container { width: calc(100% - 40px); }
    .site-header { height: 70px; }
    .brand { gap: 12px; }
    .university-logo { width: 145px; height: auto; }
    .platform-name { width: 230px; height: auto; }
    .menu-toggle { display: flex; flex-direction: column; justify-content: center; gap: 5px; flex-shrink: 0; width: 36px; height: 36px; border: 0; background: transparent; padding: 5px; }
    .menu-toggle span { display: block; height: 2px; width: 26px; background: var(--wine); }
    .primary-nav { position: absolute; top: 70px; left: 0; right: 0; padding: 18px 20px; background: #fff; box-shadow: 0 8px 12px #0001; display: none; justify-content: center; flex-wrap: wrap; gap: 24px; }
    .primary-nav.is-open { display: flex; }
    .primary-nav .login-link { margin: 0; height: 36px; min-width: 100px; }
    .section-title img { width: 260px; height: auto; }
    .resources { padding: 30px 0 60px; }
    .resource-grid { width: 100%; margin-left: 0; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 22px; margin-top: 28px; }
    .resource-card { width: 100%; }
    .resource-card h2 { font-size: 17px; }
    .desktop-break { display: none; }
    .teaching-data { padding-bottom: 65px; }
    .teaching-diagram { aspect-ratio: auto; height: auto; margin-top: 24px; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; padding-top: 250px; }
    .teaching-orbit { width: 260px; height: 260px; left: calc(50% - 130px); }
    .metric { position: relative; left: auto; top: auto; width: 100%; height: 90px; padding: 10px 8px 10px 38px; border-radius: 8px; }
    .metric dt, .metric dd > span { font-size: 16px; }
    .metric dd strong { font-size: 42px; }
    .metric > img, .metric-course > img, .metric-major > img, .metric-discipline > img, .metric-base > img, .metric-users > img { left: -9px; right: auto; top: calc(50% - 25px); width: 50px; height: 50px; }
    .metric-users { grid-column: 1 / -1; width: calc(50% - 8px); justify-self: center; }
    .experiments { padding-bottom: 65px; }
    .experiments::before { background-size: auto 665px; }
    .experiment-gallery { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); height: auto; gap: 18px; margin-top: 30px; }
    .experiment-card { height: 310px; }
    .experiment-copy { left: 18px; right: 18px; bottom: 26px; }
    .experiment-copy h3 { font-size: 17px; }
    .experiment-copy p { opacity: 1; margin-top: 9px; }
    .footer-links-section { height: 265px; background-size: cover; }
    .related-links { width: 390px; margin-top: 30px; }
    .related-links a { min-height: 58px; font-size: 14px; }
    .footer-qr { margin: 80px 15px 0; width: 110px; height: 110px; }
    .footer-meta { font-size: 12px; }
}

@media (max-width: 520px) {
    .container { width: calc(100% - 28px); }
    .site-header { height: 64px; }
    .brand { gap: 8px; min-width: 0; }
    .university-logo { width: 112px; }
    .platform-name { width: min(43vw, 178px); }
    .header-inner { gap: 8px; }
    .menu-toggle { width: 30px; padding: 3px; }
    .menu-toggle span { width: 24px; }
    .primary-nav { top: 64px; font-size: 13px; gap: 20px; }
    .hero { height: 50vw; }
    .hero > img { width: 132%; max-width: none; margin-left: -16%; }
    .section-title img { width: 220px; }
    .resources { padding-top: 28px; padding-bottom: 48px; }
    .resource-grid { gap: 12px; margin-top: 24px; }
    .resource-card h2 { font-size: 12px; line-height: 1.35; }
    .teaching-data { padding-bottom: 48px; }
    .teaching-diagram { padding-top: 226px; gap: 12px; }
    .teaching-orbit { width: 236px; height: 236px; left: calc(50% - 118px); }
    .metric { height: 76px; padding-left: 24px; }
    .metric dt, .metric dd > span { font-size: 12px; }
    .metric dd strong { font-size: 32px; }
    .metric > img, .metric-course > img, .metric-major > img, .metric-discipline > img, .metric-base > img, .metric-users > img { width: 36px; height: 36px; left: -6px; top: calc(50% - 18px); }
    .metric-users { width: 70%; }
    .experiment-gallery { gap: 12px; }
    .experiment-card { height: 245px; border-radius: 7px; }
    .experiment-copy { left: 12px; right: 12px; bottom: 22px; }
    .experiment-copy h3 { font-size: 13px; }
    .experiment-copy p { font-size: 10px; line-height: 1.5; }
    .experiments { padding-bottom: 48px; }
    .footer-links-section { height: 240px; }
    .related-links { width: 65%; margin-top: 37px; }
    .related-links a { min-height: 47px; font-size: 10px; }
    .footer-qr { width: 82px; height: 82px; margin: 75px 2px 0 12px; }
    .footer-meta-inner { align-items: flex-start; flex-direction: column; justify-content: center; gap: 10px; padding-top: 18px; padding-bottom: 18px; }
    .footer-meta { font-size: 10px; }
}

@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    .resource-card, .experiment-card, .experiment-copy p { transition: none; }
}

@media (max-width: 359px) {
    .university-logo { width: 100px; }
    .resource-card h2 { font-size: 10px; }
}



.breadcrumb {height:35px;border-bottom:1px dashed #eee;overflow: hidden;margin-bottom:25px;padding-left:22px;}
.breadcrumb span{line-height: 35px;font-family:"Microsoft YaHei";font-size: 28px;color:#fff;display: block;padding: 0 20px;float: left;background: #3591e0;}
.breadcrumb ul {float:left;}
.breadcrumb ul li a, .breadcrumb ul li {color:#666; font-size:12px; line-height:35px;font-family: serif;}
.breadcrumb ul li a:hover {text-decoration:none;color:#3591e0;}
.breadcrumb b{float:left;padding:0 15px;height:35px;line-height:35px;font-size: 18px;color: #3591e0;border-bottom: 2px #3591e0 solid;font-weight: normal;}



.contentCategory {width:1400px;padding:15px;min-height:860px;margin:30px auto 20px;background: #fff;border-radius:5px;-moz-box-shadow: 0 1px 30px rgba(70, 70, 70, 0.36);-webkit-box-shadow: 0px 0px 10px rgba(70, 70, 70, 0.36);box-shadow: 0px 0px 10px rgba(70, 70, 70, 0.36);}

.aside {width:180px;position:relative;}
.aside h2 {height:40px;line-height:40px; color:#fff; font-weight:normal;font-size:16px;font-family:"Microsoft YaHei";background:#7b051e;text-align:center;margin-bottom:10px;}
.aside h2 a{display:block;text-decoration:none;color:#fff;}
.aside ul li {background:#f0f0f0;margin-top:5px;}
.aside ul li a{display:block; height:40px;line-height:40px;color:#666;font-size:14px;font-family:"Microsoft YaHei"; font-weight: normal; text-decoration: none;padding-left:40px; background: #f9f9f9;}
.aside ul li a:hover {color:#8fba3d ;background:url("../img/leftBtn.png") #fff 20px center no-repeat;-moz-box-shadow: 0 0 5px #a9a9a9; -webkit-box-shadow: 0px 0px 5px #a9a9a9;
    box-shadow: 0px 0px 5px #a9a9a9;}
.level3 {display: block !important;}
.level3 > li > a {font-size: 14px !important;padding-left: 60px !important;background-position-x: 35px !important;}
.level4 {display: none;}
.level4 > li > a {padding-left:10px;background: #E36776;}
.level2 > li > a.arrow:hover,
.level3 > li > a.arrow:hover,
.level4 > li > a.arrow:hover,
.level2 > li > a.current,
.level3 > li > a.current,
.level4 > li > a.current {color:#8fba3d ;background:url("../img/leftBtn.png") #f7f7f7 20px center no-repeat;-moz-box-shadow: 0 0 5px #a9a9a9; -webkit-box-shadow: 0px 0px 5px #a9a9a9;
    box-shadow: 0px 0px 5px #a9a9a9;}

.level3 li a:hover{background: url("../img/bg-btn3.png") #eee no-repeat !important; color: #333 !important;}
.arrow{background:#3591e0 !important;color: #fff !important;}


.contentLi {width:1160px;}

.articleLi {margin-top:5px;min-height:550px;}
.articleLi ul {margin: 10px;}
.articleLi ul li {height:35px;line-height: 35px;border-bottom: 1px dashed #bfbfbf;padding-left:20px;}
.articleLi ul li a {display:block;font-size:12px;color:#787878;text-decoration: none;cursor: pointer;}
.articleLi ul li a h3 {font-size: 14px;font-weight: normal;}
.articleLi ul li a:hover {color:#061888;}


.contentArt {width:1400px;padding:15px;min-height:600px;margin:30px auto 20px;background:#fff;border-radius:5px;-moz-box-shadow: 0 1px 30px rgba(70, 70, 70, 0.36);-webkit-box-shadow: 0px 0px 10px rgba(70, 70, 70, 0.36);box-shadow: 0px 0px 10px rgba(70, 70, 70, 0.36);}
.title_info {font-family:serif;width:100%;color:#666;text-align: center;padding: 20px 0;font-size: 15px;border-bottom:2px solid #ededed;}
.secondContent{width:750px;}

.articlePage {margin-top:30px;min-height:450px;}
.articlePage h2 {text-align:center;font-size:27px;color:#061888;font-weight:normal;line-height:35px;}

.article-detail {padding:15px;}
.article-detail > p img {display:block;margin: 10px auto;}
.article-detail > p {font-family: serif;line-height: 30px;padding-top:10px;text-align: justify;color: #666;text-indent: 2em;font-size: 14px;}
.article-detail table {margin:0 auto;}
.article-detail table td {text-align:left;font-size:14px;color:#666;padding:10px;line-height:22px;}
.article-detail table td p{text-indent:0;font-size:14px;text-align:left;font-family:"Microsoft YaHei";color:#666;line-height:25px;}
.article-detail object{margin-left: -2em;}


.page {
    height: 40px;
    text-align: center;
    color: #888;
    margin: 20px auto 0;
    background: #f2f2f2;
}

.pagelist {
    font-size: 0;
    background: #fff;
    height: 50px;
    line-height: 50px;
}

.pagelist span {
    font-size: 14px;
}

.pagelist .bgprimary {
    cursor: default;
    color: #fff;
    background: #337ab7;
    border-color: #337ab7;
}

.pagelist .jump {
    border: 1px solid #ccc;
    padding: 3px 8px;
    -webkit-border-radius: 4px;
    -moz-border-radius: 4px;
    border-radius: 4px;
    cursor: pointer;
    margin-left: 5px;
}
.ellipsis {
    padding: 0px 8px;
}

.bgprimary {
    cursor: default;
    color: #fff;
    background: #337ab7;
    border-color: #337ab7;
}

.pagelist .jump.disabled{
    pointer-events: none;
    background: #ddd;
}