body{overflow-x: hidden;}
.bm{width: 100%;height: 920px;margin:auto auto;background:url(../images/online_pc.jpg);background-position:center; background-repeat: no-repeat;color: #fff;text-align: center;}
.bm h1{height: 200px;line-height: 200px;font-size: 48px;letter-spacing: 15px;}
.bm>.bm_info{width: 100%;height: 400px;}
.bm>.bm_info p{font-size: 30px;margin-top: 50px;margin-right: 360px;margin-bottom: 25px;}
.text-input{height: 50px;width: 480px;border-radius:15px;border: 1px solid #fff;font-size: 18px;padding-left: 10px;color: #a8a8a8;}
button{width: 500px;height: 50px;line-height: 50px;font-size: 30px;font-weight: bold;background-color: #ffc331;color: #fff;border: 1px solid #ffc331;border-radius:15px;cursor: pointer;margin: 60px 0;}
.zx_tel{font-size: 18px;}

input::-webkit-input-placeholder {
        color: #bfbfbf;
      }
      input::-moz-input-placeholder {
        color: #bfbfbf;
      }
      input::-ms-input-placeholder {
        color: #bfbfbf;
      }