/*全局*/
* {
  margin: 0;
  padding: 0;
}

/*exprolist*/
.exprolist {
  position: relative;
  height: 332px;
  padding: 0px 0;
}
.exprolist .title {
  width: 100%;
  height: 60px;
  line-height: 60px;
  font-size: 18px;
  color: #000;
}
.exprolist .title font {
  color: #000;
  padding-left: 10px;
}
.exprolist .left {
  width: 1200px;
  height: 332px;
  position: absolute;
  left: 0;
  top: 0px;
  overflow: hidden;
}
.exprolist .left .list_m {
  height: 332px;
  position: relative;
}
.exprolist .left .list_m li {
  float: left;
  width: 1200px;
  height: 332px;
  overflow: hidden;
  background: url(../images/indbg.jpg);
  color: #fff;
}
.exprolist .left .list_m li img {
    height: 332px;
  display: block;
}

.exprolist .left #left_btn,
.exprolist .left #right_btn {
  width: 0px;
  height: 50px;
  position: absolute;
  top: 200px;
  margin-top: -50px;/* 箭头高度 */
  background-color: rgba(0, 0, 0, 0.6);
  cursor: pointer;
  color: #fff;
  z-index: 999;
  font-size: 30px;
  text-align: center;
  line-height: 55px;
  filter: alpha(opacity=0);/* IE */
  -moz-opacity: 0;/* 老版Mozilla */
  -khtml-opacity: 0;/* 老版Safari */
  opacity: 0;
  transition: all 0.5s;
  -webkit-transition: all 0.5s;
  -moz-transition: all 0.5s;
}
.exprolist .left #right_btn {
  right: 0px;
}
.exprolist .left:hover #left_btn,
.exprolist .left:hover #right_btn {
  width: 45px;
  filter: alpha(opacity=100);/* IE */
  -moz-opacity: 1;/* 老版Mozilla */
  -khtml-opacity: 1;/* 老版Safari */
  opacity: 1;
}
.exprolist .right_t {
  height: 298px;
  width: 505px;
  position: absolute;
  right: 0;
  top: 60px;
}
.exprolist .right_b {
  height: 296px;
  width: 505px;
  position: absolute;
  right: 0;
  bottom: 75px;
}