.ctn1 {
  padding: 4vw 0 5vw;
  overflow: hidden;
  background: url(../img/decoration/bg2.jpg) no-repeat;
  background-size: cover;
}
.ctn1 .ctn-list {
  margin-top: 3vw;
}
.ctn1 .ctn-list ul li {
  margin-top: 1.5vw;
  background: #fff;
  border-radius: 8px;
  box-shadow: 0px 8px 20px 0px rgba(156, 156, 156, 0.05);
  padding: 0 3vw;
  position: relative;
}
.ctn1 .ctn-list ul li:before {
  content: '';
  width: 0;
  height: 4px;
  background: #f9d255;
  position: absolute;
  left: 0;
  top: 0;
  transition: all 1s;
  -webkit-transition: all 1s;
  -moz-transition: all 1s;
  -ms-transition: all 1s;
}
.ctn1 .ctn-list ul li .top {
  display: flex;
  position: relative;
  padding: 30px 50px 30px 0;
  cursor: pointer;
}
.ctn1 .ctn-list ul li .top span {
  color: #999;
  letter-spacing: 2px;
  font-family: Arial;
}
.ctn1 .ctn-list ul li .top h2 {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  color: #4e515c;
}
.ctn1 .ctn-list ul li .top .add {
  position: absolute;
  width: 36px;
  height: 36px;
  right: 0;
  top: 36px;
}
.ctn1 .ctn-list ul li .top .add:before {
  content: '';
  width: 100%;
  height: 3px;
  background: #ccc;
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  -webkit-transform: translateY(-50%);
  -moz-transform: translateY(-50%);
  -ms-transform: translateY(-50%);
  transition: all 0.5s;
  -webkit-transition: all 0.5s;
  -moz-transition: all 0.5s;
  -ms-transition: all 0.5s;
}
.ctn1 .ctn-list ul li .top .add:after {
  content: '';
  width: 3px;
  height: 100%;
  background: #ccc;
  position: absolute;
  left: 50%;
  top: 0;
  transform: translateX(-50%);
  -webkit-transform: translateX(-50%);
  -moz-transform: translateX(-50%);
  -ms-transform: translateX(-50%);
  transition: all 0.5s;
  -webkit-transition: all 0.5s;
  -moz-transition: all 0.5s;
  -ms-transition: all 0.5s;
}
.ctn1 .ctn-list ul li .bottom {
  padding-bottom: 2vw;
  display: none;
}
.ctn1 .ctn-list ul li .bottom .text {
  background: #fbfbfb;
  border-radius: 8px;
  padding: 1vw 2vw;
}
.ctn1 .ctn-list ul li .bottom .text p {
  color: #4e515c;
  line-height: 1.8;
  text-align: justify;
}
.ctn1 .ctn-list ul li .bottom .text p:not(:first-child) {
  margin-top: 1vw;
}
.ctn1 .ctn-list ul li:hover:before {
  width: 100%;
}
.ctn1 .ctn-list ul li.active:before {
  width: 100%;
}
.ctn1 .ctn-list ul li.active .top h2 {
  white-space: inherit;
}
.ctn1 .ctn-list ul li.active .top .add:before {
  background: #f9d255;
}
.ctn1 .ctn-list ul li.active .top .add:after {
  opacity: 0;
}
@media screen and (max-width: 1600px) {
  .ctn1 .ctn-list ul li .top {
    padding: 24px 50px 24px 0;
  }
  .ctn1 .ctn-list ul li .top .add {
    width: 30px;
    height: 30px;
    top: 31px;
  }
}
@media screen and (max-width: 1440px) {
  .ctn1 .ctn-list ul li .top {
    padding: 20px 40px 20px 0;
  }
  .ctn1 .ctn-list ul li .top .add {
    width: 24px;
    height: 24px;
    top: 30px;
  }
  .ctn1 .ctn-list ul li .top .add:before {
    height: 2px;
  }
  .ctn1 .ctn-list ul li .top .add:after {
    width: 2px;
  }
}
@media screen and (max-width: 1200px) {
  .ctn1 .ctn-list ul li .top span {
    position: relative;
    top: -1px;
  }
}
@media screen and (max-width: 1024px) {
  .ctn1 .ctn-list ul li .top span {
    font-size: 22px;
    top: 0;
  }
}
@media screen and (max-width: 768px) {
  .ctn1 {
    padding: 40px 0;
  }
  .ctn1 .ctn-list {
    margin-top: 30px;
  }
  .ctn1 .ctn-list ul li {
    padding: 0 14px;
    margin-top: 14px;
  }
  .ctn1 .ctn-list ul li:before {
    height: 2px;
  }
  .ctn1 .ctn-list ul li .top {
    padding: 14px 30px 14px 0;
  }
  .ctn1 .ctn-list ul li .top span {
    font-size: 16px;
    letter-spacing: 0;
    top: 1px;
  }
  .ctn1 .ctn-list ul li .top h2 {
    font-size: 16px;
  }
  .ctn1 .ctn-list ul li .top .add {
    width: 16px;
    height: 16px;
    top: 18px;
  }
  .ctn1 .ctn-list ul li .bottom {
    padding-bottom: 20px;
  }
  .ctn1 .ctn-list ul li .bottom .text {
    padding: 14px;
  }
  .ctn1 .ctn-list ul li .bottom .text p {
    line-height: 1.6;
  }
  .ctn1 .ctn-list ul li .bottom .text p:not(:first-child) {
    margin-top: 10px;
  }
}