main {
  /* background-image: url('../images/join-bg.png');
  background-repeat: no-repeat;
  background-size: cover;
  min-height: 869px;
  background-position: 50% 50%;
  display: block;
  outline: none;
  margin: 0px auto;
  position: relative;
  overflow: hidden; */

  background-image: url("../images/join-bg.png");
  min-height: 869px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  background-attachment: fixed;
  background-position: center center;
  background-repeat: no-repeat;
  background-size: cover;

}

.one .left {
  width: 50%;
  margin: 100px 0;
}

.one .left .title {
  font-size: 48px;
  font-family: 'sansRegular';
  padding-bottom: 30px;
}

.one .left .bcolor {
  color: #3877fd;
  padding-left: 20px;
}

.o-list {
  width: 81%;
}

.o-list li {
  background: #fff;
  border: 1px solid #fff;
  padding: 5% 5% 0;
  margin-bottom: 38px;  
}

.o-list li:last-child {
  margin-bottom: 8%;
}

.o-list li:hover {
  border-left: 2px solid #3877fd;
  box-shadow: 0 0.5rem 1rem rgba(33, 37, 41, .15) !important;
	border-radius: 0.375rem !important;
	transition: all 0.8s ease;
}

.o-list .title1 {
  font-size: 18px;
  font-family: 'sansBold';
}

.o-list .date,
.o-list .txt {
  color: #7e7e7e;
  font-family: 'sansRegular';
}

.o-list .date {
  font-size: 14px;
}

.o-list li .top {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
}

.o-list .t-list {
  padding-top: 20px;
}

.o-list .t-list p {
  font-size: 14px;
  color: #7e7e7e;
  font-family: 'sansRegular';
  line-height: 28px;
}

.o-list .view {
  color: #3877fd;
  font-size: 14px;
  font-family: 'sansRegular';
  padding-top: 28px;
  display: inline-block;
  padding-bottom: 23px;
}

/* 笔记本 */
@media screen and (max-width: 1024px) {
  .one .left {
    width: 85%;
  }

  .one .left .title {
    font-size: 28px;
    padding-top: 50px;
  }
}

/* 大型笔记本 */
@media screen and (min-width: 1025px) and (max-width: 1440px) {
  .one .left {
    width: 70%;
  }

  .one .left .title {
    font-size: 28px;
  }
}

/* 手机端 */
@media (max-width: 768px) {
  .one {
    margin: 50px 0;
  }

  .one .left {
    width: 100%;
    margin: 0;
}

  .o-list {
    width: 100%;
  }

  .one .left .title {
    padding-top: 0;
  }

}