.bt { width:100%; height:auto; margin-top:1.5rem}

.bt img { width:100%; height:auto;}

.c4_main{ border-bottom:1px solid #EBEBEB;  padding:0px 7px 10px; overflow:hidden; margin:0rem 0rem 1rem; font-size:75%; margin:0 auto; color:#333;max-width:640px;min-width:320px;position: relative;height:100%;}



.c4_gun{ margin:0 4.6%; margin-top:10px;font-size:16px;}

.c4_gun dl{ overflow:hidden;zoom:1; padding-bottom:10px;}

.c4_gun dl dt{ float:left; width:5%;}

.c4_gun dl dd{ float:left; width:74%;margin-left:7%}

.c4_gun dl dd h3{ font-family:"微软雅黑"; font-size:14px; color:##178586; font-weight:bold;}

.c4_gun dl dd p{ color:#333333; line-height:22px; text-indent:2em;font-size:12px; font-family:"微软雅黑";}



.c4_main_top { margin:0 4.6%; height:auto;padding-bottom:1rem; font-size:1.4rem; color:#1e5c93; border-bottom:0.1rem solid #dedede; line-height:48px;  }

.c4_main_top img { width:55px; height:48px; margin-right:3%;  }

.c4_main_cen {  margin:0 4.6%; height:auto; /*padding-bottom:1rem;*/padding-top:0.5rem;/*border-bottom:0.1rem solid #dedede;*/ }

.c4_main_cen_p {width:100%; height:25px; line-height:25px; font-size:14px;}

.c4_main_cen_c { width:100%; height:30px; margin-bottom:5px;} 

.c4_main_cen_cl { width:48%; line-height:28px;border:1px solid #EBEBEB; color:#545a61;  text-align:center; float:left; font-size:12px; }

.c4_main_cen_cr { width:43%; line-height:30px;border:1px solid #EBEBEB; color:#545a61;  text-align:center; float:left; font-size:12px; }