@charset "UTF-8";
body { overflow-x: hidden; margin: 0px; padding: 0px; font-size: 13px; font-family: Arial, Helvetica, sans-serif,"微软雅黑","宋体"; color: #000000; font-weight: 500; overflow-x: hidden; }
div, from, li, ul, dl, dd, dt, img, p, span { margin: 0; padding: 0; border: 0; font-size: 12px; font-weight: 500; font-family: "微软雅黑","宋体"; }
ul { list-style-type: none; }
li { list-style: none; }
a { text-decoration: none; cursor: pointer; }
a:hover { text-decoration: none; }

.m-con { width: 1200px; margin: 0 auto; }
.tt { text-align: center; padding-top: 100px; }

.banner .b1 { width: 100%; height: 403px; background: url("/statics/aist/zt/lyjd2020/images/b1.jpg") center no-repeat; }
.banner .b2 { width: 100%; height: 403px; background: url("/statics/aist/zt/lyjd2020/images/b2.jpg") center no-repeat; }

.m1 .mm1{ width: 100%; height: 515px; background: url("/statics/aist/zt/lyjd2020/images/lyjd_02.jpg") center no-repeat; }
.m1 .mm2{ width: 100%; height: 515px; background: url("/statics/aist/zt/lyjd2020/images/lyjd_03.jpg") center no-repeat; }

.m2 { width: 100%; height: 687px; background: url("/statics/aist/zt/lyjd2020/images/lyjd_04.jpg") center no-repeat; }
.m2 .tt {padding-top: 70px; }
.m2 .m-con { width:1110px; }
.m2 .m-con ul{width: 100%;height: 350px;padding-top: 40px;}
.m2 .m-con ul li {float: left;position: relative;}
.m2 .m-con ul li p{padding-top: 20px;font-size: 22px;color: #333333;text-align: center;}

.m3 .mm1{ width: 100%; height: 545px; background: url("/statics/aist/zt/lyjd2020/images/lyjd_11.jpg") center no-repeat; }
.m3 .mm2{ width: 100%; height: 485px; background: url("/statics/aist/zt/lyjd2020/images/lyjd_12.jpg") center no-repeat; }

.m4 { width: 100%; height: 792px; background: url("/statics/aist/zt/lyjd2020/images/lyjd_15.jpg") center no-repeat; }
.m4 .m-con ul{width: 100%;height: 420px;padding-top: 50px;}
.m4 .m-con ul li {float: left;position: relative;}

.m5 { width: 100%; height: 766px; background: url("/statics/aist/zt/lyjd2020/images/lyjd_25.jpg") center no-repeat; }
.m5 .m-con ul{width: 100%;height: 350px;padding-top: 100px;}
.m5 .m-con ul li {float: left;position: relative;}

.m6 { width: 100%; height: 1431px; background: url("/statics/aist/zt/lyjd2020/images/lyjd_36.jpg") center no-repeat; }
.m6 .m-con { padding-top: 125px; }
.m6 .mdesc { width: 635px; height:630px; padding-left: 565px; }
.m6 .mdesc .ptt { color: #333333; font-size: 33px;  }
.m6 .mdesc .pptt{ color: #444444; font-size: 20px; margin-top: 15px;}
.m6 .mdesc .md2 { margin: 0 auto; width: 470px; height: 264px; padding: 5px; margin-top: 30px; background-color:#fff;}


.m7 { width: 100%; height: 1332px;  background: url("/statics/aist/zt/lyjd2020/images/lyjd_44.jpg") center no-repeat; }
.m7 .tt {padding-top: 80px; }
.m7 .m-con { margin-top: 30px;  height:595px;background: url("/statics/aist/zt/lyjd2020/images/lyjd_48.png") center no-repeat;}
.m7 .m-con .mdesc{padding-top: 165px; padding-left: 670px;  width: 310px;}
.m7 .m-con .mdesc .ptt { color: #ffffff; font-size: 42px; text-align: center;margin-bottom: 50px; }
.m7 .m-con .mdesc .pptt{ color: #ffffff; font-size: 20px; line-height:28px;}
.m7 .m-con2 { width:1287px; height:370px;margin: 0 auto; }

.m8 { width: 100%; height: 822px;  background: url("/statics/aist/zt/lyjd2020/images/lyjd_51.jpg") center no-repeat; }