html,
body {
    margin: 0;
    font-family: 'lato', sans-serif;
    color: white;
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    background: #8548AF;
    background: linear-gradient(135deg, rgb(224, 89, 107) 0%, rgb(165, 31, 49) 50%, rgb(221, 144, 34) 100%);
    background: -webkit-linear-gradient(-45deg, rgb(224, 89, 107) 0%, rgb(165, 31, 49) 50%, rgb(221, 144, 34) 100%);
    background: -moz-linear-gradient(-45deg, rgb(224, 89, 107) 0%, rgb(165, 31, 49) 50%, rgb(221, 144, 34) 100%);
}

noscript>* {
    z-index: 100;
}

#privacy {
    position: absolute;
    bottom: 14px;
    right: 90px;
    text-decoration: none;
    color: white;
    text-transform: uppercase;
    font-size: 10px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.5);
    z-index: 10;
}

#cookie-warning {
    position: fixed;
    z-index: 1000;
    top: 0;
    left: 0;
    width: 100%;
    min-height: 40px;
    font-size: 13px;
    background: #484946;
    color: #9E9E9E;
    text-align: center;
    box-sizing: border-box;
    padding-left: 40px;
    padding-right: 40px;
    opacity: 0;
    pointer-events: none;
    transition: 0.5s;
}

#cookie-warning.visible {
    opacity: 1;
    pointer-events: all;
}

#cookie-warning .close {
    background: url(https://www.tsinghua.edu.cn/thu109/public/publish/img/cookie-close.svg) 0 0 / 100% 100% no-repeat;
    width: 12px;
    height: 11px;
    display: block;
    position: absolute;
    right: 22px;
    top: 16px;
    cursor: pointer
}

#blob-shapes {
    display: none;
}

.column {
    display: inline-block;
    vertical-align: top;
}

.close-button {
    position: absolute;
    top: 80px;
    left: 931px;
    background: url(https://www.tsinghua.edu.cn/thu109/public/publish/img/close.svg);
    width: 27px;
    height: 27px;
    cursor: pointer;
}

.share-buttons div {
    display: inline-block;
    cursor: pointer;
}

#blurb-copy {
    display: none;
}

#warning-titles {
    opacity: 0;
    transition: 0.5s;
    pointer-events: none;
}

.small-screen #warning-titles,
.no-webgl #warning-titles {
    opacity: 1;
    pointer-events: all;
}

.small-screen #intro-scroller,
.small-screen #overlays,
.no-webgl #intro-scroller,
.no-webgl #overlays {
    pointer-events: none;
}

.small-screen #the-british-museum,
.no-webgl #the-british-museum {
    opacity: 1;
}

.no-webgl #webgl-warning {
    opacity: 1;
    pointer-events: all;
}

.small-screen #screen-size-warning {
    opacity: 1;
    pointer-events: all;
}

#audio-toggle {
    position: absolute;
    z-index: 4;
    right: 10px;
    top: 10px;
    display: block;
    width: 20px;
    height: 20px;
    cursor: pointer;
    opacity: 0;
    pointer-events: none;
    transition: 0.5s;
}

.intro-state-2 #audio-toggle,
.intro-state-3 #audio-toggle,
.intro-state-4 #audio-toggle {
    opacity: 1;
    pointer-events: all;
}

#audio-toggle svg {
    width: 100%;
    height: 100%;
}

#audio-toggle .vol {
    transition: 0.5s;
}

#audio-toggle .vol:nth-child(3) {
    transition-delay: 0.1s;
}

#audio-toggle .vol:nth-child(4) {
    transition-delay: 0.2s;
}

#audio-toggle.muted .vol {
    opacity: 0;
}

#audio-toggle:hover {
    opacity: 0.6;
    transition: 0.3s;
}

#warning-titles .main-title {
    position: absolute;
    left: 50%;
    top: 50%;
    margin-left: -115px;
    margin-top: -140px;
    width: 229px;
    height: 84px;
    color: transparent;
    line-height: 20px;
    white-space: pre-line;
    text-align: center;
    font-size: 20px;
}

#warning-titles .motw-blobs {
    position: absolute;
    left: 50%;
    margin-left: -60px;
    top: 50%;
    margin-top: 25px;
    width: 120px;
    height: 88px;
}

.motw-blobs svg {
    display: inline-block;
    margin-top: -60px;
    width: 120px;
    height: 88px;
}

#screen-size-warning,
#webgl-warning,
#noscript-warning {
    opacity: 0;
    pointer-events: none;
    transition: 1s;
    position: absolute;
    top: 50%;
    left: 50%;
    width: 270px;
    margin-left: -135px;
    color: #B1B1B1;
    text-align: center;
    font-size: 14px;
    margin-top: 80px;
}

#noscript-warning {
    opacity: 1;
    pointer-events: all;
}

#screen-size-warning a,
#webgl-warning a,
#noscript-warning a {
    color: white;
    text-decoration: none;
}

#main-canvas {
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}

.dg.ac,
#stats {
    z-index: 2 !important;
}

#overlays {
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

#dot-dot-dot,
#main-share,
#arrows,
#categories,
#geographies>div {
    transition: 0.5s;
    pointer-events: none;
    opacity: 0;
}

.intro-state-4 #dot-dot-dot,
.intro-state-4 #main-share,
.intro-state-4 #arrows,
.intro-state-4 #categories,
.intro-state-4 #geographies>div {
    pointer-events: all;
    opacity: 1;
}

#main-title {
    display: block;
    position: absolute;
    top: 0px;
    width: 100%;
    /*318px;*/
    color: transparent;
    text-align: center;
}

#main-title img {
    width: 450px;
}

#main-title span {
    display: block;
    color: #fff;
    opacity: 0.5;
}

#background-gradient-block {
    background: linear-gradient(135deg, rgb(190, 155, 208) 0%, rgb(106, 40, 162) 50%, rgb(213, 152, 24) 100%);
    background: -webkit-linear-gradient(-45deg, rgb(190, 155, 208) 0%, rgb(106, 40, 162) 50%, rgb(213, 152, 24) 100%);
    background: -moz-linear-gradient(-45deg, rgb(190, 155, 208) 0%, rgb(106, 40, 162) 50%, rgb(213, 152, 24) 100%);
    position: absolute;
    width: 100%;
    height: 100%;
    z-index: -1;
}

#categories {
    position: absolute;
    right: 0;
    top: 37%;
    margin-top: -50px;
    width: 62px;
    height: 108px;
    border-bottom-left-radius: 8px;
    border-top-left-radius: 8px;
    background: #484946;
    box-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

#categories-logo {
    background: url(https://www.tsinghua.edu.cn/thu109/public/publish/img/eye.svg) 50% 50% / 100% no-repeat;
    position: absolute;
    top: 51px;
    left: 10px;
    width: 35px;
    height: 35px;
    margin-top: -17px;
    cursor: pointer;
}

#arrows {
    position: absolute;
    left: 0;
    top: 37%;
    margin-top: -50px;
    width: 62px;
    height: 108px;
    border-bottom-right-radius: 8px;
    border-top-right-radius: 8px;
    background: #484946;
    box-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

#arrows #up-arrow,
#arrows #down-arrow {
    position: absolute;
    top: 0px;
    left: 20px;
    font-size: 40px;
    font-family: arial;
    font-weight: normal;
    width: 28px;
    height: 28px;
    transition: 0.5s;
    cursor: pointer;
}

#arrows #arrow-divider {
    position: absolute;
    top: 54px;
    left: 20px;
    width: 28px;
    height: 1px;
    background-color: white;
}

#arrows #up-arrow {
    background: url(https://www.tsinghua.edu.cn/thu109/public/publish/img/up-arrow.svg) 0 0 / 100% 100% no-repeat;
    top: 16px;
}

#arrows #down-arrow {
    background: url(https://www.tsinghua.edu.cn/thu109/public/publish/img/down-arrow.svg) 0 0 / 100% 100% no-repeat;
    top: 64px;
}

#up-arrow:hover,
#down-arrow:hover {
    opacity: 0.5;
}

#main-share {
    background: url(https://www.tsinghua.edu.cn/thu109/public/publish/img/share-icon.svg) 0 0 / 100% 100% no-repeat;
    position: absolute;
    z-index: 3;
    top: 108px;
    left: 18px;
    width: 22px;
    height: 24px;
    margin-top: -20px;
    cursor: pointer;
}

#dot-dot-dot {
    background: url(https://www.tsinghua.edu.cn/thu109/public/publish/img/dot-dot-dot.png) 0 0 / 100% 100% no-repeat;
    position: absolute;
    z-index: 5;
    top: 25px;
    left: 10px;
    width: 40px;
    height: 40px;
    cursor: pointer;
}

#main-share:hover,
#dot-dot-dot:hover {
    opacity: 0.6;
    transition: 0.3s;
}

#google-cultural-institute {
    background: url(https://www.tsinghua.edu.cn/thu109/public/publish/img/google-cultural-institute.svg) 100% 100% / 100% no-repeat;
    display: block;
    position: absolute;
    bottom: 14px;
    right: 14px;
    width: 56px;
    height: 32px;
    cursor: pointer;
    z-index: 10;
}

#the-british-museum {
    background: url(https://www.tsinghua.edu.cn/thu109/public/publish/img/the-british-museum.svg) 0 100% / 100% no-repeat;
    display: block;
    position: absolute;
    bottom: 14px;
    left: 14px;
    width: 107px;
    height: 35px;
    cursor: pointer;
    z-index: 10;
}

#main-menu {
    position: absolute;
    top: 0;
    left: 0;
    width: 183px;
    box-sizing: border-box;
    background: #484946;
    z-index: 4;
    padding: 20px;
    pointer-events: none;
    opacity: 0;
    transition: 0.5s;
    font-size: 13px;
    color: #7D7D7D;
    box-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

#main-menu.visible {
    opacity: 1;
    pointer-events: all;
}

#main-menu h2 {
    padding-left: 40px;
    font-size: 22px;
    line-height: 60px;
    margin-top: -6px;
    padding-bottom: 8px;
    margin-bottom: 16px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.4);
    color: #FFFFFF;
    text-transform: uppercase;
    font-weight: normal;
}

#main-menu p,
#main-menu li {
    cursor: pointer;
    border-bottom: 1px solid #7D7D7D;
    margin: 0;
    margin-bottom: 3px;
    padding-bottom: 4px;
    text-decoration: none;
    color: #7D7D7D;
    transition: 0.5s;
}

#main-menu a {
    color: #7D7D7D;
    text-decoration: none;
    color: #7D7D7D;
    transition: 0.5s;
}

#main-menu li:last-child {
    border-bottom: 0;
}

#main-menu sup {
    font-size: x-small;
}

#main-menu p:hover,
#main-menu li:hover {
    color: white;
}

#main-menu a:hover {
    color: #FFFFFF;
}

#main-menu li:last-child {
    border-bottom: 0;
}

#main-menu sup {
    font-size: x-small;
}

#main-menu p:hover,
#main-menu li:hover {
    color: white;
}

#main-menu h3 {
    margin-top: 16px;
    margin-bottom: 4px;
    padding-bottom: 4px;
    font-size: 13px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.4);
}

#menu-timeline {
    list-style: none;
    padding: 0;
    margin: 0;
}

#categories {
    color: white;
    transition: 0.5s;
    overflow: hidden;
}

#categories.visible {
    width: 170px;
    height: 276px;
}

#categories-logo {
    transition: 0.5s;
}

#categories.visible #categories-logo {
    left: 70px;
    top: 25px;
}

#categories-list {
    list-style: none;
    padding: 0;
    margin: 0;
    padding-top: 8px;
    margin-left: 26px;
    margin-right: 24px;
    border-top: 1px solid rgba(255, 255, 255, 0.4);
    margin-top: 48px;
    margin-bottom: 10px;
    opacity: 0;
    pointer-events: none;
    transition: 0.5s;
}

#categories.visible #categories-list {
    opacity: 1;
    pointer-events: all;
    transition: 0.5s 0.5s;
}

#categories-list li {
    text-align: center;
    cursor: pointer;
    margin-bottom: 0px;
    padding-left: 0px;
    margin-left: 0px;
    white-space: nowrap;
    height: 40px;
    line-height: 40px;
    transition: 0.3s;
    opacity: 0.49;
    font-size: 14px;
}

#categories-list li.highlight {
    opacity: 1;
}

#main-share-buttons {
    position: absolute;
    left: 0px;
    top: 77px;
    z-index: 2;
    width: 183px;
    box-sizing: border-box;
    padding: 20px;
    padding-top: 8px;
    padding-bottom: 8px;
    background: #484946;
    color: white;
    box-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
    opacity: 0;
    pointer-events: none;
    transition: 0.5s;
}

#main-share-buttons.visible {
    opacity: 1;
    pointer-events: all;
}

#main-share-buttons h2 {
    padding-left: 40px;
    font-size: 22px;
    line-height: 30px;
    padding-bottom: 6px;
    margin-bottom: 8px;
    margin-top: 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.4);
    color: #FFFFFF;
    text-transform: uppercase;
    font-weight: normal;
}

#main-share-buttons>div {
    opacity: 0.4;
    transition: 0.5s;
    margin-right: 8px;
}

#main-share-buttons>div:hover {
    opacity: 1;
}

#scroll-help-background {
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    background: rgba(102, 104, 93, 0.8);
    opacity: 0;
    pointer-events: none;
    transition: 1s;
}

#scroll-help-background.visible {
    pointer-events: all;
    opacity: 1;
}

#scroll-help-overlay {
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    z-index: 2;
    opacity: 0;
    pointer-events: none;
    transition: 1s;
}

#scroll-help-overlay.visible {
    pointer-events: all;
    opacity: 1;
}

#scroll-help-arrows {
    position: absolute;
    display: block;
    left: 80px;
    top: 37%;
    width: 124px;
    height: 21px;
    margin-top: -5px;
}

#scroll-help-menu {
    position: absolute;
    display: block;
    left: 80px;
    top: 20px;
    width: 86px;
    height: 36px;
}

#scroll-help-categories {
    position: absolute;
    display: block;
    right: 190px;
    top: 37%;
    margin-top: -13px;
    width: 126px;
    height: 21px;
}

#scroll-help-message {
    position: absolute;
    display: block;
    left: 50%;
    top: 50%;
    width: 472px;
    height: 220px;
    margin-left: -236px;
    margin-top: -110px;
}

#scroll-help-share {
    position: absolute;
    display: block;
    left: 80px;
    top: 89px;
    width: 86px;
    height: 20px;
}

#object-details,
#about-overlay,
#credits-overlay {
    position: absolute;
    left: 40px;
    right: 40px;
    top: 100px;
    bottom: 80px;
    z-index: 3;
    height: auto;
    width: auto;
    border: 1px solid black;
    background: white;
    opacity: 0;
    pointer-events: none;
    transition: 1s;
    color: black;
}

#object-details.visible,
#about-overlay.visible,
#credits-overlay.visible {
    opacity: 1;
    pointer-events: all;
}

#video-overlay,
#map-overlay {
    background: black;
    position: fixed;
    left: 60px;
    top: 60px;
    right: 60px;
    bottom: 60px;
    width: auto;
    height: auto;
    border-radius: 8px;
    padding: 20px;
    box-sizing: border-box;
    color: white;
    transition: 0.5s;
    overflow: hidden;
    opacity: 0;
    pointer-events: none;
    z-index: 7;
}

#video-overlay.visible,
#map-overlay.visible {
    opacity: 1;
    pointer-events: all;
}

.video-container,
.map-container {
    width: 100%;
    height: 100%;
}

@media (max-width: 480px) {
    #arrows,
    #categories,
    #scroll-help-arrows,
    #scroll-help-categories {
        display: none;
    }
    #main-title img {
        width: 260px;
    }
    .object-hover-name span {
        width: 260px;
    }
}

@media (max-height: 480px) {
    #arrows {
        top: 178px;
    }
    #categories {
        top: 78px;
    }
    #scroll-help-arrows {
        top: 178px;
    }
    #scroll-help-categories {
        top: 78px;
    }
}

@media (max-width: 350px) {
    #main-title img {
        width: 200px;
    }
}