.banner {
  width: 100%;
  position: relative;
  overflow: hidden;
  margin-top: 68px;
}
.banner img {
  width: 100%;
}
.banner .txt {
  position: absolute;
  top: 30%;
  left: 10%;
  z-index: 2;
}
.banner h1 {
  color: #141414;
  line-height: 1.3;
}
.banner p {
  color: #fff;
}
.sub_nav ul {
  width: 100%;
  display: flex;
  justify-content: flex-start;
  padding: 2% 0;
}
.sub_nav ul li {
  color: #999999;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.sub_nav ul li i {
  margin-right: 15px;
}
.sub_nav ul li span {
  margin: 0 8px;
}
.sub_nav ul li.on {
  color: #007bf5;
}
.cont_1 {
  width: 100%;
  position: relative;
  padding: 2% 0 5%;
}
.cont_1 .w1480_f {
  display: flex;
  justify-content: space-between;
  position: relative;
}
.cont_1 .w1480_f .l-side {
  width: 26%;
  background-color: #f2f3f5;
  padding: 30px 0;
}
.cont_1 .w1480_f .l-side .close {
  display: none;
}
.cont_1 .w1480_f .l-side .slide_show {
  display: none;
}
.cont_1 .w1480_f .l-side .first {
  margin-bottom: 10px;
}
.cont_1 .w1480_f .l-side .first .d-firstNav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-right: 15px;
  cursor: pointer;
}
.cont_1 .w1480_f .l-side .first .d-firstNav span {
  display: inline-block;
  font-size: 18px;
  padding-left: 25px;
  line-height: 2.5;
}
.cont_1 .w1480_f .l-side .first .d-firstNav i {
  display: block;
  font-size: 18px;
  transition: all 0.3s;
}
.cont_1 .w1480_f .l-side .first.on .d-firstNav span {
  border-left: 2px solid #007bf5;
}
.cont_1 .w1480_f .l-side .first.on .d-firstNav i {
  transform: rotate(90deg);
}
.cont_1 .w1480_f .l-side .first .d-firstDrop {
  display: none;
  padding: 10px 0;
}
.cont_1 .w1480_f .l-side .first .d-firstDrop .d-secondNav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-right: 15px;
  cursor: pointer;
}
.cont_1 .w1480_f .l-side .first .d-firstDrop .d-secondNav span {
  display: inline-block;
  font-size: 16px;
  padding-left: 35px;
  line-height: 2.3;
}
.cont_1 .w1480_f .l-side .first .d-firstDrop .d-secondNav i {
  display: block;
  font-size: 18px;
  transition: all 0.3s;
}
.cont_1 .w1480_f .l-side .first .d-firstDrop .d-secondNav.on i {
  transform: rotate(90deg);
}
.cont_1 .w1480_f .l-side .first .d-firstDrop .d-secondDrop {
  display: none;
  padding-left: 15px;
  padding-right: 30px;
}
.cont_1 .w1480_f .l-side .first .d-firstDrop .d-secondDrop a {
  font-size: 14px;
  display: block;
  background-color: #fff;
  border-radius: 100px;
  padding: 10px 25px;
  margin: 5px 0;
  color: #007bf5;
}
.cont_1 .w1480_f .r-cont {
  margin-left: 40px;
  width: 73%;
  text-align: center;
}
.cont_1 .w1480_f .r-cont li {
  text-align: left;
}
.cont_1 .w1480_f .r-cont li .title {
  background-color: #f2f3f5;
  padding: 2.5%;
}
.cont_1 .w1480_f .r-cont li .title span {
  color: #888;
}
.cont_1 .w1480_f .r-cont li span {
  display: inline-block;
  font-size: 16px;
}
.cont_1 .w1480_f .r-cont li p {
  font-size: 16px;
  line-height: 1.6;
}
.cont_1 .w1480_f .r-cont li .t_name {
  width: 62%;
}
.cont_1 .w1480_f .r-cont li .t_time {
  width: 28%;
}
.cont_1 .w1480_f .r-cont li .t_icon {
  width: 8%;
  text-align: right;
}
.cont_1 .w1480_f .r-cont li .t_icon i {
  display: inline-block;
  font-size: 16px;
  transition: all 0.3s;
}
.cont_1 .w1480_f .r-cont li .collapsing {
  padding: 2.5%;
  border-bottom: 1px solid #eaeaea;
  cursor: pointer;
}
.cont_1 .w1480_f .r-cont li .collapsing.on {
  border-bottom: 1px solid #fff;
}
.cont_1 .w1480_f .r-cont li .collapsing.on .t_icon i {
  transform: rotate(180deg);
}
.cont_1 .w1480_f .r-cont li .coll_body {
  border-top: 1px solid #007bf5;
  background-color: #f2f3f5;
  padding: 20px 25px;
  display: none;
}
.cont_1 .w1480_f .r-cont li .coll_body a {
  display: inline-block;
  padding: 8px 30px;
  border: 1px solid #007bf5;
  border-radius: 100px;
  color: #007bf5;
  font-size: 14px;
  margin-top: 30px;
}
.cont_1 .w1480_f .r-cont li .coll_body a::before {
  content: '';
  width: 24px;
  height: 24px;
  background: url('../img/download/down.png') no-repeat center center;
  background-size: 100%;
  display: inline-block;
  vertical-align: middle;
  margin-right: 8px;
}
.cont_1 .w1480_f .r-cont .more {
  display: inline-block;
  margin-top: 3%;
  color: #888;
  background-color: #f2f3f5;
  padding: 8px 30px;
  font-size: 14px;
  border-radius: 100px;
}
@media screen and (max-width: 900px) {
  .banner {
    margin-top: 50px;
  }
}
@media screen and (max-width: 768px) {
  .banner {
    height: 240px;
  }
  .banner img {
    height: 100%;
    position: absolute;
    top: 0%;
    left: 50%;
    width: auto;
    transform: translateX(-50%);
  }
  .cont_1 .w1480_f .l-side {
    position: fixed;
    top: 60px;
    left: 0;
    bottom: 0;
    right: 0;
    width: 100%;
    z-index: 10;
    padding-top: 50px;
    transition: all 0.3s;
    transform: translateX(-100%);
  }
  .cont_1 .w1480_f .l-side .close {
    position: absolute;
    top: 10px;
    right: 10px;
    font-size: 20px;
    color: #999999;
    display: block;
  }
  .cont_1 .w1480_f .l-side .slide_show {
    display: block;
    position: absolute;
    top: 0;
    right: -46px;
    width: 30px;
    padding: 6px 8px;
    font-size: 20px;
    color: #999999;
    background-color: #fff;
    box-sizing: content-box;
    letter-spacing: -9px;
  }
  .cont_1 .w1480_f .r-cont {
    width: 100%;
    margin: 0;
  }
  .cont_1 .w1480_f .r-cont li .collapsing {
    display: flex;
    justify-content: space-between;
    align-items: center;
  }
  .cont_1 .w1480_f .r-cont span {
    font-size: 12px!important;
  }
  .cont_1 .w1480_f .r-cont p {
    font-size: 14px!important;
  }
  .cont_1 .w1480_f .r-cont a {
    padding: 5px 20px!important;
    margin-top: 20px!important;
  }
}
/*# sourceMappingURL=download.css.map */