.title{line-height: 50px;font-size: 36px;text-align: center;}
.main{position: relative;width: 1000px;height: 420px;margin: 0 auto 50px;}
.main-carousel{position: absolute;top: 0;left: 0;right: 0;bottom: 0;overflow: hidden;}
.main-item{z-index: 0;position: absolute;top: 0;left: 0;right: 0;bottom: 0;text-align: center;font-size: 36px;color: #000;font-weight: bold;line-height: 420px;opacity: 0;transition: all .5s;}
.main-item.cur{z-index: 1;opacity: 1;}
.main-trigger{z-index: 1;position: absolute;left: 0;right: 0;text-align: center;font-size: 0;bottom: -60px;}
.trigger-item{display: inline-block;width: 12px;height: 12px;background-color: #ccc;cursor: pointer;border-radius: 50%;margin: 0 11px;}
.trigger-item.active{background-color: #5198CE;}
.next-btn,.prev-btn{z-index: 1;position: absolute;width: 40px;height: 80px;top: 50%;margin-top: -40px;background-color: #dddddd;cursor: pointer;}
.next-btn{right: 0;}
.prev-btn{left: 0}