#content {
  flex: 1;
  width: 1280px;
  margin: 0 auto;
  padding: 24px 100px;
}
#content .top_list {
  margin-bottom: 24px;
  display: grid;
  grid-template-columns: repeat(1, minmax(100px, 1fr));
  grid-gap: 24px;
}
#content .top_list .top_item {
  border-radius: 0px 0px 0px 0px;
  border: 1px solid #E1E1E1;
  display: flex;
}
#content .top_list .top_item img {
  width: calc(100% / 2);
  object-fit: cover;
}
#content .top_list .top_item .r_box {
  width: calc(100% / 2);
  border-left: 1px solid #E1E1E1;
  padding: 32px;
}
#content .top_list .top_item .r_box .top_item_r .title {
  width: 100%;
  font-family: b;
  font-weight: bold;
  font-size: 36px;
  line-height: 42px;
  color: #333333;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  margin-bottom: 16px;
}
#content .top_list .top_item .r_box .top_item_r .text {
  width: 100%;
  height: 96px;
  font-family: s;
  font-size: 16px;
  color: #666666;
  line-height: 24px;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 4;
  -webkit-box-orient: vertical;
  margin-bottom: 24px;
}
#content .top_list .top_item .r_box .top_item_r .r_btm {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}
#content .top_list .top_item .r_box .top_item_r .r_btm span {
  font-family: b;
  font-weight: bold;
  font-size: 18px;
  color: #333333;
}
#content .top_list .top_item .r_box .top_item_r .r_btm div {
  width: 149px;
  height: 42px;
  background: #3C3C3C;
  border-radius: 38px 38px 38px 38px;
  font-family: s;
  font-size: 16px;
  color: #FFFFFF;
  text-align: center;
  line-height: 42px;
}
#content .top_list .top_item .r_box .m_top_item_r {
  display: none;
  align-items: center;
  justify-content: space-between;
}
#content .top_list .top_item .r_box .m_top_item_r .m_r_l h3 {
  font-family: b;
  font-weight: bold;
  font-size: 18px;
  color: #333333;
}
#content .top_list .top_item .r_box .m_top_item_r .m_r_l span {
  font-family: m;
  font-weight: 500;
  font-size: 14px;
  color: #999999;
}
#content .top_list .top_item .r_box .m_top_item_r .open {
  width: 67px;
  height: 32px;
  background: #007FFC;
  box-shadow: 0px 2px 6px 0px rgba(0, 0, 0, 0.25);
  border-radius: 38px 38px 38px 38px;
  font-family: m;
  font-weight: 500;
  font-size: 14px;
  color: #FFFFFF;
  line-height: 32px;
  text-align: center;
}
#content .ad_box .ad_title {
  text-align: center;
  font-family: m;
  font-weight: 500;
  font-size: 12px;
  color: #D0D0D0;
}
#content .ad_box .ad_cont {
  width: 100%;
  min-height: 90px;
  margin-bottom: 24px;
}
#content .free_box {
  margin-bottom: 24px;
}
#content .free_box .top_title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  margin-bottom: 24px;
}
#content .free_box .top_title h3 {
  font-family: b;
  font-weight: bold;
  font-size: 32px;
  color: #333333;
}
#content .free_box .top_title .learn {
  display: block;
  width: 149px;
  height: 42px;
  background: #3C3C3C;
  border-radius: 38px 38px 38px 38px;
  font-family: s;
  font-size: 16px;
  color: #FFFFFF;
  text-align: center;
  line-height: 42px;
}
#content .free_box .free_list {
  display: grid;
  grid-template-columns: repeat(4, minmax(100px, 1fr));
  grid-gap: 32px;
}
#content .free_box .free_list .free_item {
  border: 1px solid #E1E1E1;
}
#content .free_box .free_list .free_item .top_box img {
  width: 100%;
}
#content .free_box .free_list .free_item .itam_btm {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 10px;
}
#content .free_box .free_list .free_item .itam_btm .btm_l h3 {
  font-family: b;
  font-weight: bold;
  font-size: 18px;
  color: #333333;
}
#content .free_box .free_list .free_item .itam_btm .btm_l span {
  font-family: m;
  font-weight: 500;
  font-size: 14px;
  color: #999999;
}
#content .free_box .free_list .free_item .itam_btm .r_hei {
  width: 32px;
  height: 32px;
}
#content .free_box .free_list .free_item .itam_btm .open {
  display: none;
  width: 67px;
  height: 32px;
  background: #007FFC;
  box-shadow: 0px 2px 6px 0px rgba(0, 0, 0, 0.25);
  border-radius: 38px 38px 38px 38px;
  font-family: m;
  font-weight: 500;
  font-size: 14px;
  color: #FFFFFF;
  line-height: 32px;
  text-align: center;
}
#content .free_box .free_list .free_item:hover {
  box-shadow: 0px 4px 16px 0px rgba(0, 0, 0, 0.25);
}
@media (min-width: 860px) and (max-width: 1200px) {
  #content {
    width: 100%;
    padding: 16px;
  }
  #content .top_list {
    grid-template-columns: repeat(3, minmax(100px, 1fr));
  }
  #content .top_list .top_item {
    width: 100%;
    flex-direction: column;
  }
  #content .top_list .top_item img {
    width: 100%;
  }
  #content .top_list .top_item .r_box {
    width: 100%;
    padding: 12px;
    border-left: none;
  }
  #content .top_list .top_item .r_box .top_item_r {
    display: none;
  }
  #content .top_list .top_item .r_box .m_top_item_r {
    display: flex;
  }
  #content .free_box .top_title .learn {
    background: #007FFC;
  }
  #content .free_box .free_list {
    grid-template-columns: repeat(3, minmax(100px, 1fr));
    grid-gap: 12px;
  }
  #content .free_box .free_list .free_item .itam_btm .r_hei {
    display: none;
  }
  #content .free_box .free_list .free_item .itam_btm .open {
    display: block;
  }
}
@media (min-width: 750px) and (max-width: 859px) {
  #content {
    width: 100%;
    padding: 16px;
  }
  #content .top_list {
    grid-template-columns: repeat(2, minmax(100px, 1fr));
  }
  #content .top_list .top_item {
    width: 100%;
    flex-direction: column;
  }
  #content .top_list .top_item img {
    width: 100%;
  }
  #content .top_list .top_item .r_box {
    width: 100%;
    padding: 12px;
    border-left: none;
  }
  #content .top_list .top_item .r_box .top_item_r {
    display: none;
  }
  #content .top_list .top_item .r_box .m_top_item_r {
    display: flex;
  }
  #content .free_box .top_title .learn {
    background: #007FFC;
  }
  #content .free_box .free_list {
    grid-template-columns: repeat(2, minmax(100px, 1fr));
    grid-gap: 12px;
  }
  #content .free_box .free_list .free_item .itam_btm .r_hei {
    display: none;
  }
  #content .free_box .free_list .free_item .itam_btm .open {
    display: block;
  }
}
@media (min-width: 560px) and (max-width: 749px) {
  #content {
    width: 100%;
    padding: 16px;
  }
  #content .top_list {
    grid-template-columns: repeat(2, minmax(100px, 1fr));
  }
  #content .top_list .top_item {
    width: 100%;
    flex-direction: column;
  }
  #content .top_list .top_item img {
    width: 100%;
  }
  #content .top_list .top_item .r_box {
    width: 100%;
    padding: 12px;
    border-left: none;
  }
  #content .top_list .top_item .r_box .top_item_r {
    display: none;
  }
  #content .top_list .top_item .r_box .m_top_item_r {
    display: flex;
  }
  #content .free_box .top_title .learn {
    background: #007FFC;
  }
  #content .free_box .free_list {
    grid-template-columns: repeat(2, minmax(100px, 1fr));
    grid-gap: 12px;
  }
  #content .free_box .free_list .free_item .itam_btm .r_hei {
    display: none;
  }
  #content .free_box .free_list .free_item .itam_btm .open {
    display: block;
  }
}
@media (min-width: 0px) and (max-width: 559px) {
  #content {
    width: 100%;
    padding: 16px;
  }
  #content .top_list {
    grid-template-columns: repeat(1, minmax(100px, 1fr));
  }
  #content .top_list .top_item {
    width: 100%;
    flex-direction: column;
  }
  #content .top_list .top_item img {
    width: 100%;
  }
  #content .top_list .top_item .r_box {
    width: 100%;
    padding: 12px;
    border-left: none;
  }
  #content .top_list .top_item .r_box .top_item_r {
    display: none;
  }
  #content .top_list .top_item .r_box .m_top_item_r {
    display: flex;
  }
  #content .free_box .top_title .learn {
    background: #007FFC;
  }
  #content .free_box .free_list {
    grid-template-columns: repeat(1, minmax(100px, 1fr));
    grid-gap: 12px;
  }
  #content .free_box .free_list .free_item .itam_btm .r_hei {
    display: none;
  }
  #content .free_box .free_list .free_item .itam_btm .open {
    display: block;
  }
}
