:root {
  --mianBackGroundColor: #ffc930;
  --commonFontColor: #000;
}
html::-webkit-scrollbar {
  width: 0;
  height: 0;
}
* {
  padding: 0;
  margin: 0;
  -webkit-user-drag: none;
  user-select: none;
}
* img {
  object-fit: cover;
}
a {
  text-decoration: none;
  color: #000;
}
.mainBg {
  /* background-color: var(--mianBackGroundColor); */
  background-color: #0057b2;
  animation: all 300ms;
}
#logo {
  display: flex;
  flex-direction: row;
  justify-content: center;
  padding: 10px;
}
#logo a {
  transition: margin 0.35s ease-out;
}
#logo img {
  transition: inherit;
}
@media (min-width: 960px) {
  #logo img {
    height: 200px;
  }
}
@media (max-width: 959px) {
  #logo img {
    height: 125px;
  }
}
@media (max-width: 569px) {
  #logo img {
    height: 60px;
  }
}
.logo-icon-sw {
  display: inline-block;
  position: relative;
}
.logo-icon-sw::before {
  content: "";
  display: inline-block;
  height: 20px;
  width: 40px;
  background: url("../img/logo_sb.png");
  background-size: cover;
  overflow: hidden;
  transform: translate(10%, 23%);
}
.link {
  color: pink;
  font-weight: 700;
  text-decoration: underline;
  cursor: pointer;
}
.link:hover {
  color: #fff;
  text-decoration: none;
}
footer .about::before,
footer .acknowledgement::before {
  display: block;
  margin-bottom: 7px;
  font-weight: 500;
}
footer .about .content,
footer .acknowledgement .content {
  position: relative;
  display: inline-block;
  /* color: var(--commonFontColor); */
  color: #000;
  font-size: 14px;
  line-height: 25px;
  height: 25px;
  font-weight: 300;
}
footer .about::before {
  content: "About";
}
footer .acknowledgement::before {
  content: "Acknowledgement";
}
@media (min-width: 960px) {
  footer {
    padding: 72px 36px;
    display: flex;
  }
  footer .about,
  footer .acknowledgement {
    flex: 1;
  }
  footer .acknowledgement {
    margin-right: 25px;
  }
  footer .about {
    margin-left: 25px;
  }
}
@media (max-width: 959px) {
  footer {
    padding: 72px 36px;
  }
  footer .about,
  footer .acknowledgement {
    text-align: left !important;
  }
  footer .acknowledgement {
    margin-bottom: 20px;
  }
  footer .about {
    margin-top: 20px;
  }
}
@media (max-width: 569px) {
  footer {
    padding: 36px 36px;
  }
  footer .about,
  footer .acknowledgement {
    display: none;
  }
}
.main-container {
  display: flex;
  justify-content: center;
  position: relative;
}
@media (max-width: 850px) {
  .main-container {
    flex-direction: column;
    align-items: center;
  }
}
.main-container #main {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-around;
  margin-top: 30px;
  overflow: hidden;
  min-width: 300px !important;
}
.main-container #main div {
  height: 365px;
  width: 225px;
  cursor: pointer;
  margin-left: 18px;
  margin-right: 18px;
  margin-top: 18px;
  margin-bottom: 18px;
  position: relative;
}
.main-container #main div.Album,
.main-container #main div.PicFilm,
.main-container #main div.E-Book {
  background-repeat: no-repeat;
  background-size: contain;
  background-position: center;
  opacity: 1;
  transition: opacity 0.15s ease-out, width 0.15s ease-out;
  display: inline-block;
}
.main-container #main div.Album[active],
.main-container #main div.PicFilm[active],
.main-container #main div.E-Book[active] {
  position: relative;
}
@media (max-width: 850px) {
  .main-container #main div.Album[active]::after,
  .main-container #main div.PicFilm[active]::after,
  .main-container #main div.E-Book[active]::after {
    content: url('data:image/svg+xml;base64,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');
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    bottom: 0;
    height: 64px;
    width: 64px;
    animation: buling 1500ms linear infinite;
    cursor: grab;
    pointer-events: auto;
  }
  @keyframes buling {
    0% {
      opacity: 0;
    }
    25% {
      opacity: 0.5;
    }
    50% {
      opacity: 1;
    }
    75% {
      opacity: 0.5;
    }
    to {
      opacity: 0;
    }
  }
}
.main-container #main div.Album {
  background-image: url("../img/main/cover/album.png");
}
.main-container #main div.PicFilm {
  background-image: url("../img/main/cover/video.png");
}
.main-container #main div.E-Book {
  background-image: url("../img/main/cover/book.png");
}
.main-container #content-card .child-card-container {
  width: 0;
  margin: 0 0;
  height: 300px;
  overflow: hidden;
  overflow-x: auto;
  white-space: nowrap;
  display: none;
  opacity: 0;
  transition: width 0.35s ease-out, margin 0.35s ease-out, opacity 0.4s ease-out;
  scroll-behavior: smooth;
  overflow: scroll;
  max-width: calc(100vw - 300px);
  position: relative;
}
@media (min-width: 850px) {
  .main-container #content-card .child-card-container {
    top: 50%;
    transform: translateY(-50%);
  }
}
.main-container #content-card .child-card-container.active {
  height: auto;
  overflow: auto;
  margin: 0;
  opacity: 1;
}
@media (max-width: 850px) {
  .main-container #content-card .child-card-container.active {
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: space-around;
    width: 100vw !important;
    max-width: 100vw !important;
  }
}
.main-container #content-card .child-card-container::-webkit-scrollbar {
  width: 20px;
  height: 0;
}
.main-container #content-card .child-card-container::-webkit-scrollbar-thumb {
  border-radius: 20px;
  background: #fcfcfc;
}
.main-container #content-card .child-card-container::-webkit-scrollbar-track {
  background: transparent;
}
.main-container #content-card .child-card-container .child-card {
  text-align: center;
  height: 250px;
  flex-shrink: 0;
  margin: 10px;
  cursor: pointer;
}
@media (min-width: 960px) {
  .main-container #content-card .child-card-container[data-page="PicFilm"] {
    box-sizing: border-box;
    padding: 0 80px 0 80px;
  }
}
.main-container #content-card .child-card-container[data-page="PicFilm"] video {
  height: 300px;
  width: 100%;
  object-fit: cover;
  cursor: pointer;
}
@media (max-width: 850px) {
  .main-container #content-card .child-card-container[data-page="PicFilm"] video {
    height: auto;
  }
}
.main-container #content-card .child-card-container[data-page="E-Book"] a {
  width: 100%;
  height: 100%;
  display: block;
}
.main-container #content-card .child-card-container[data-page="E-Book"] a img {
  height: 100%;
  object-fit: cover;
}
.main-container #content-card .child-card-container[data-page="Album"] a {
  width: 100%;
  height: 100%;
  display: block;
}
.main-container #content-card .child-card-container[data-page="Album"] a img {
  height: 100%;
  object-fit: cover;
  border-radius: 5px;
  box-shadow: -8px 7px 5px 0px #18202654;
}