@charset "utf-8";
/* CSS Document */
body, h1, h2, h3, h4, h5, h6, hr, p, blockquote, dl, dt, dd, ul, ol, li, pre, form, fieldset, legend, button, input, textarea, th, td { margin:0; padding:0 }



/*首页*/
.m_banner{ background:#fff;height:auto;padding-top:30%;overflow: hidden; position:relative;width: 100%;margin: 0 auto}
.m_banner > div:nth-child(1){display: block!important}
.m_banner > div.banner{display: none;}
.banner{height:0;padding-top:30% ;width:100%; position:absolute;top:0;margin: 0 auto; background-size:auto 100%;background-position: top center;}
.banner_ctrl{ height:100px;width:90%;position:absolute;top:50%;left:5%;margin:-50px 0 0 0px;z-index:2;}
.banner_ctrl a{ display:block;width:40px;height:90px; background:rgba(255,255,255,0.6); position:absolute;text-align: center;line-height: 90px;font-size: 30px;font-weight: bold;color:red;}
.banner_ctrl a.prev{left:-30px;}
.banner_ctrl a.next{right:-30px; background-position:-30px 0;}