.on-tc {
  z-index: 10;
  width: 52px;
  height: 56px;
  position: fixed;
  right: 6px;
  top: 58%;
}

.tc-box {
  z-index: 10;
  display: none;
  width: 100%;
  height: 100%;
  position: fixed;
  left: 0;
  top: 0;
  align-items: center;
  justify-content: center;
  background-color: #00000030;
}

.tc-box .tc {
  width: 274px;
  height: 300px;
  background: url(/res/m-tc/bg.png) no-repeat;
  background-size: 100% 100%;
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  padding: 28px 0 23px;
  box-sizing: border-box;
}

.tc-box .tc a img {
  width: 210px;
  height: 54px;
}

.off-tc {
  width: 26px;
  height: 26px;
  position: absolute;
  right: -26px;
  top: -26px;
}