.sprite {
  background-size: 1228.5px 799px;
  background: url(/uploads/pages/sprite2.png) no-repeat center;
}
.nav .nav_pc .nav_right .list .active a {
  color: #3d8bff;
}
.nav .nav_pc .nav_right .list li a:hover {
  color: #3d8bff;
}
.banner {
  background: url(/uploads/pages/bg.png) no-repeat center;
  background-size: cover;
  display: flex;
  align-items: center;
  justify-content: center;
  height: 250px;
}
.banner-title {
  font-size: 40px;
  width: 720px;
  text-align: center;
  font-weight: 700;
}
h2 {
  text-align: center;
  font-size: 32px;
  color: #313758;
}
.requirements {
  padding: 64px 0 100px 0;
}
.requirements-box {
  width: 677px;
  margin: 0 auto;
}
.requirements-list {
  width: 677px;
  border: 1px solid #DFE3EB;
  border-radius: 10px;
  margin-top: 43px;
  overflow: hidden;
}
.requirements-list_item {
  display: flex;
  font-size: 16px;
  border-bottom: 1px solid #DFE3EB;
}
.requirements-list_item .item-label {
  width: 229px;
  background: #F2FAFF;
  line-height: 61px;
  color: #080F30;
  display: flex;
  align-items: center;
  font-weight: 500;
  font-weight: bold;
}
.requirements-list_item .item-label_icon {
  background-size: 1228.5px 799px;
  background: url(/uploads/pages/sprite2.png) no-repeat center;
  margin-right: 16px;
  margin-left: 26px;
}
.requirements-list_item .item-value {
  color: #4A4A4C;
  padding: 17px 24px;
  line-height: 28px;
  font-weight: 600;
}
.requirements-list_item .item-label_icon {
  width: 28px;
  height: 28px;
}
.requirements-list_item:nth-child(1) .item-label_icon {
  background-position: -900px -278px;
}
.requirements-list_item:nth-child(2) .item-label_icon {
  background-position: -862px -278px;
}
.requirements-list_item:nth-child(3) .item-label_icon {
  background-position: -824px -278px;
}
.requirements-list_item:nth-child(4) .item-label_icon {
  background-position: -938px -278px;
}
.requirements-list_item:last-child {
  border: unset;
}
.article {
  text-align: center;
  padding: 60px 0 100px 0;
  font-weight: 600;
  background: url(/uploads/pages/videone-tech-spec/bg.png);
  background-size: cover;
}
.article-title {
  margin-bottom: 40px;
}
.article-content {
  font-size: 16px;
  color: #444;
  line-height: 1.5;
  width: 640px;
  margin: 0 auto;
  box-sizing: border-box;
  padding: 22px 60px;
  background: #fff;
  box-shadow: 0px 4px 13.5px 0px rgba(110, 142, 178, 0.08);
  border-radius: 18px;
}
.article-content_item {
  display: flex;
  align-items: center;
  padding: 18px 0;
  border-bottom: 1px solid #EFEFEF;
  padding-left: 60px;
}
.article-content_item:last-child {
  border: unset;
}
.article-content .title {
  font-size: 20px;
  color: #313758;
  width: 120px;
  text-align: left;
}
.article-content img {
  margin-right: 24px;
}
.support {
  line-height: 1.7;
}
.support .support-box {
  width: 800px;
  margin: 34px auto 100px auto;
  border-top: 1px solid #DFE3EB;
  border-left: 1px solid #DFE3EB;
  border-radius: 10px;
  overflow: hidden;
  box-sizing: border-box;
}
.support .support-box,
.support .support-box_left,
.support .support-box_right {
  display: flex;
}
.support .support-box_left {
  width: 250px;
}
.support .support-box_right {
  flex: 1;
}
.support .support-box_left,
.support .support-box_right {
  flex-direction: column;
}
.support .support-box_left div,
.support .support-box_right div {
  display: flex;
  align-items: center;
  padding: 16px 0 16px 30px;
  border-bottom: 1px solid #DFE3EB;
  border-right: 1px solid #DFE3EB;
  font-weight: 600;
  color: #606060;
}
.support .flex-one {
  flex: 1;
}
.support .support-box_left div:first-child,
.support .support-box_right div:first-child {
  background-color: #F2FAFF;
  font-weight: 700;
  border-radius: 10px 0 0 0;
  color: #444;
}
.support .support-box_right div:last-child {
  border-radius: 0 0 10px 0;
}

.support .support-box tr td {
  align-items: center;
  padding: 16px 30px;
  border-bottom: 1px solid #DFE3EB;
  border-right: 1px solid #DFE3EB;
  font-weight: 600;
  color: #606060;
}
.support .support-box tr td:first-child {
  width: 250px;
}

/*.grey-bg {*/
/*  background: #F5F8FA;*/
/*}*/
.history {
  padding: 50px 0;
}
.history-title {
  font-size: 35px;
  text-align: center;
  position: relative;
  padding-bottom: 37px;
}
.history-title::before {
  width: 50px;
  height: 5px;
  content: '';
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  bottom: 0;
  background: #4690E5;
}
.history .toggle {
  position: relative;
  z-index: 2;
  height: 40px;
  width: 280px;
  border: 1px solid #4A4A4C;
  border-radius: 20px;
  margin: 30px auto;
}
.history .toggle .active {
  color: #fff;
}
.history .toggle-choose {
  width: 280px;
  height: 40px;
  position: absolute;
  z-index: 2;
}
.history .toggle-choose_btn {
  width: 130px;
  color: #000000;
  font-size: 16px;
  display: flex;
  align-items: center;
  cursor: pointer;
  justify-content: center;
  font-weight: 600;
}
.history .toggle-choose_btn img {
  margin-right: 10px;
}
.history .toggle .current_active {
  position: absolute;
  content: '';
  width: 135px;
  height: 36px;
  top: 0;
  left: 0;
  bottom: 0;
  margin: auto;
  border-radius: 17px;
  background: #4690E5;
  z-index: 1;
}
.history .steps-mac {
  display: none;
}
.history .history-steps {
  width: fit-content;
  margin: 60px auto 0 auto;
  font-weight: 600;
}
.history .history-steps_item {
  display: flex;
  position: relative;
}
.history .history-steps-item_left {
  width: 180px;
  text-align: right;
  padding-right: 40px;
  position: relative;
  height: 50px;
  line-height: 1.5;
}
.history .history-steps-item_left .version {
  color: #484A4A;
  font-size: 18px;
}
.history .history-steps-item_left .date {
  color: #666666;
  font-size: 14px;
  margin-top: 5px;
}
.history .history-steps-item_left::before {
  position: absolute;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: #285E7B;
  content: '';
  top: 0;
  bottom: 0;
  right: -4.5px;
  margin: auto;
}
.history .history-steps-item_right {
  padding-left: 40px;
  line-height: 26px;
  font-size: 14px;
  color: #484A4A;
  padding-bottom: 40px;
  position: relative;
}
.history .history-steps-item_right::after {
  content: '';
  width: 1px;
  position: absolute;
  left: -1px;
  top: 0;
  bottom: 0;
  border-right: 1px solid #285E7B;
}
.history .history-steps_item:first-child .history-steps-item_left::after {
  position: absolute;
  width: 0px;
  height: 0px;
  border-left: 8px solid transparent;
  border-right: 8px solid transparent;
  border-bottom: 13px solid #285E7B;
  top: -12px;
  right: -8px;
  content: '';
}
.history .history-steps_item:last-child .history-steps-item_right::after {
  height: 30px;
}
@media screen and (max-width: 768px) {
  h2 {
    font-size: 22px;
  }
  .requirements-box::-webkit-scrollbar,
  .support-wrap::-webkit-scrollbar {
    height: 8px;
  }
  .requirements-box::-webkit-scrollbar-thumb,
  .support-wrap::-webkit-scrollbar-thumb {
    background: #DAE9FF;
    border-radius: 4px;
  }
  .requirements-box::-webkit-scrollbar-track,
  .support-wrap::-webkit-scrollbar-track {
    background: #f1f1f1;
  }
  .banner {
    height: 160px;
    padding: 0 var(--page-padding-x);
    background-image: url(/uploads/pages/mb-bg.png);
  }
  .banner-title {
    font-size: 24px;
    line-height: 40px;
  }
  .requirements {
    padding: 45px var(--page-padding-x);
  }
  .requirements-box {
    width: 100%;
    overflow-x: scroll;
  }
  .requirements-list {
    margin-top: 40px;
    margin-bottom: 20px;
  }
  .support {
    padding: 0 var(--page-padding-x);
  }
  .support .support-wrap {
    width: 100%;
    overflow-x: scroll;
  }
  .support .support-box {
    margin: 40px auto 20px auto;
  }
  .article {
    padding: 40px 0 60px 0;
    margin-top: 40px;
    padding-inline: var(--page-padding-x);
    background-image: url(/uploads/pages/videone-tech-spec/mb-bg.png);
  }
  .article-title {
    font-size: 24px;
    margin-bottom: 10px;
  }
  .article-content {
    font-size: 16px;
    line-height: 28px;
    font-weight: 600;
    width: auto;
    padding: 0 15px;
    margin-top: 32px;
  }
  .article-content_item {
    padding: 22px 0;
    font-size: 12px;
  }
  .article-content_item img {
    width: 25px;
    height: auto;
    margin-right: 10px;
  }
  .article-content .title {
    font-size: 18px;
    width: 90px;
  }
  .history .history-steps .history-steps-item_left {
    width: 110px;
  }
  .history .history-steps .history-steps-item_right {
    padding-right: 20px;
    flex: 1;
  }
}