/* common  */

header {
  width: 100%;
  height: 60px;
  /* background: #156BBC; */
}

@media (min-width: 1024px) {
  header {
    width: 100%;
    height: 40px;
  }
}


/* vedio-list */

.main-width {
  max-width: 1280px;
  margin: 0 auto;
}

@media only screen and (max-width: 1280px) {
  .main-width {
    width: auto;
    margin: 0 16px;
  }
}

@media only screen and (max-width: 1023px) {
  .main-width > .br-230-100 {
    border: none;
  }
}

.item-wrap li:nth-last-of-type(-n+2) {
  border: none;
}

.item-box .icon-bofang {
  font-size: 40px;
  color: rgba(255, 255, 255, 1);
  opacity: 0.6;
  transition: all 0.3s;
}

.item-box:hover .icon-bofang {
  opacity: 1;
}