.book-list {
  padding: 30px 0;
  width: 1100px;
  margin: 0 auto
}
.materials-title {
  font-size: 16px;
  margin-bottom: 20px;
}
.materials-title:before {
  content: '';
  display: inline-block;
  background: url("../images/gift.png") center center no-repeat;
  background-size: 15px 15px;
  width: 15px;
  height: 15px;
  margin-right: 2px;
}
.materials-title span{
  font-size: 13px;
}
/*配套教材资料 （报班赠送）*/
.book-item {
  background-color: #fcfcfc;
  box-shadow: 0 0 10px 0 rgba(0, 0, 0, .1);
  border-radius: 4px 0 0 0;
  border: solid 1px #efeeef;
  margin-bottom: 30px;
  display: flex;
  align-items: center;
}
.item-left {
  flex: 0.7;
  padding: 18px 10px 14px 50px;
  display: flex;
}
.item-left .book-cover {
  width: 220px;
  height: 220px;
  border: solid 1px #f6f6f6;
  background: #fff;
  padding: 5px;
  margin-right: 40px;
}
.item-left .book-cover .book {
  margin: 0 auto;
  width: 220px;
  height: 100%;
}
.item-left .book-detail {
  flex: 1.0;
}
.item-left .book-title {
  font-size: 16px;
  font-weight: bold;
  color: #333;
  margin-bottom: 10px;
  height: 60px;
  display: flex;
  align-items: center;
}
.item-left .book-info-row {
  display: flex;
  font-size: 14px;
  line-height: 34px;
  color: #9e9e9e;
}
.item-left .book-info-left {
  width: 80px;
  text-align-last: justify;
}
.item-left .book-info-right {
  color: #333333;
  margin-left: 5px;
}
.item-right {
  flex: 0.3;
  background: #fff;
  border-left: 1px dashed #efeeef;
  padding: 59px 25px 40px;
}
.item-right .book-price-row {
  display: flex;
  color: #9e9e9e;
  width: 180px;
  margin: 0 auto;
  font-size: 14px;
  align-items: baseline;
  line-height: 30px;
}
.item-right .book-price-left {
  width: 60px;
  text-align-last: justify;
}
.item-right .book-price-right {
  margin-left: 5px;
  color: #333;
  font-size: 12px;
  display: flex;
  align-items: baseline;
}
.item-right .book-price-right span {
  color: #ff4623;
  font-size: 14px;
}
.item-right .book-price-right .sells-price {
  font-size: 24px;
  font-weight: bold;
}
.item-right .book-btn {
  width: 238px;
  margin: 50px auto 0;
  display: flex;
}
.item-right .book-buy-btn {
  width: 148px;
  height: 40px;
  background-color: #00aaee;
  border-radius: 2px;
  border: solid 1px #00aaee;
  cursor: pointer;
  color: #fff;
  text-align: center;
  line-height: 40px;
  font-size: 14px;
  margin-right: 10px;
}
.item-right .book-detail-btn {
  width: 80px;
  height: 40px;
  background-color: #f4f4f4;
  border-radius: 2px;
  border: solid 1px #c9c9c9;
  cursor: pointer;
  color: #818181;
  text-align: center;
  line-height: 40px;
  font-size: 14px;
}

/*配套内部教辅资料 （报班学员专享）*/
.teaching-aids {
  display: flex;
  flex-wrap: wrap;
}
.aids-item {
  width: 352px;
  min-height: 134px;
  box-shadow: 0 0 10px 0 rgba(0, 0, 0, .1);
  border-radius: 4px 0px 0px 0px;
  border: solid 1px #efeeef;
  padding: 20px;
  display: flex;
  margin-bottom: 30px;
  margin-right: 20.5px;
}
.teaching-aids .aids-item:nth-child(3n){
  margin-right: 0;
}
.aids-item .book {
  height: 140px;
}
.aids-detail {
  margin-left: 18px;
  flex: 1.0;
}
.aids-title {
  font-size: 16px;
  color: #000;
  height: 52px;
  display: flex;
  align-items: center;
}
.aids-intro {
  font-size: 12px;
  color: #777;
  line-height: 22px;
}