.wp {
  width: 1550px;
}

.main-cover {
  width: 100%;
  height: 718px;
  box-shadow: 0 3px 10px 0px #888888;
  position: relative;
}

.main-cover .bd {
  background: 50% 50% no-repeat;
  position: absolute;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
}

.main-cover .tt {
  height: 100%;
  color: #fff;
  user-select: none;
  position: relative;
  font-family: 'Source Han Sans CN';
  padding: 0;
}

.main-bd {
  margin: 10.3rem auto 0.98rem;
  overflow: hidden;
  display: flex;
  width: 13.6rem !important;
}
.main-bd .aside {
  width: 2.68rem;
  background: url(../images/line-bg.jpg) 0.16rem 0 repeat-y;
  padding: 0.92rem 0;
}
.main-bd .aside h4 {
  background: url(../images/icon-historical.png) 0 -0.36rem no-repeat;
  height: 0.36rem;
  color: #c2aa70;
  font-size: 0.28rem;
  line-height: 0.36rem;
  padding-left: 0.83rem;
  cursor: pointer;
  background-size: 0.36rem auto;
}
.main-bd .aside h4.active {
  background-position: 0 0;
  color: #5d1012;
}
.main-bd .aside h4 + .cell {
  margin-top: 0.6rem;
}
.main-bd .article {
  flex: 1;
}
.main-bd .article .cells {
  display: none;
  opacity: 0;
  transform: translateY(10px);
  transition: all 0.2s linear 0.2s;
}
.main-bd .article .cells .cell {
  background-image: url('../images/cell-bg-b.jpg');
  width: 100%;
  padding: 0.43rem;
}
.main-bd .article .cells .cell h5 {
  font-size: 0.24rem;
  color: #5d1012;
  font-weight: bold;
  line-height: 1;
}
.main-bd .article .cells .cell h6 {
  font-size: 0.2rem;
  color: #000000;
  line-height: 1.5em;
  margin-top: 0.1rem;
}
.main-bd .article .cells .cell + .cell {
  margin-top: 0.3rem;
}
.main-bd .article .cells.active {
  display: block;
  opacity: 1;
  transform: translateY(0px);
}
/* 年份 */
.tt-m .bd::after {
  display: none;
}
.btn-year {
  position: absolute;
  right: 0.16rem;
  top: 50%;
  transform: translate(0, -50%);
}
.chronology {
  background: #fff;
  padding: 0.08rem;
  box-sizing: border-box;
  width: 100%;
  transition: all 0.2s;
  position: fixed;
  transform: translate(0, -100%);
  z-index: 99;
  top: 0.74rem;
  left: 0;
  bottom: 0;
  display: none;
}
.chronology.active {
  transform: translate(0, 0);
}
.chronology .cell {
  display: block;
  margin: 0;
  float: left;
  width: 20%;
  position: relative;
}
.chronology .cell a {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 18px;
  color: #c2aa70;
}
.chronology .cell::after {
  display: block;
  content: '';
  padding-top: 100%;
}
.chronology .cell::before {
  display: block;
  content: '';
  position: absolute;
  border: 0.02rem solid #c2aa70;
  right: 0.08rem;
  top: 0.08rem;
  left: 0.08rem;
  bottom: 0.08rem;
}
.chronology .cell.active {
}
.chronology .cell.active a {
  color: #5d1012;
}
.chronology .cell.active::before {
  border-color: #5d1012;
}
.chronology .cell.active::after {
}
/* ===== 媒体查询 ===== */
@media screen and (max-width: 1024px) {
  .wp.main-bd {
    width: 100% !important;
    margin-top: 0.16rem !important;
    padding-left: 0.16rem;
    padding-right: 0.16rem;
  }
  .main-bd .article .cells .cell {
    padding: 0.43rem;
  }
  .main-bd .aside {
    display: none;
  }

  .chronology {
    display: block;
  }
  .chronology .cell {
    width: 14.285%;
  }
}
@media screen and (max-width: 720px) {
  .wp.main-bd {
    margin-top: 0.16rem !important;
    padding-bottom: 0 !important;
    margin-bottom: 0 !important;
  }
  .tt-m {
    margin-top: 0.16rem !important;
  }
  .main-bd .article .cells .cell {
    padding: 0.16rem;
  }

  .main-bd .article .cells .cell + .cell {
    margin-top: 0.16rem !important;
    margin-bottom: 0.16rem !important;
  }
  .chronology .cell {
    width: 20%;
  }
}