#j_content{width:100%;overflow: hidden;}
#j_content .banner{width:100%;height:360px;margin:0 auto;position: relative;display: flex;justify-content: center;align-items: center;overflow: hidden;position: relative;}
#j_content .banner:after{content: ""; position: absolute;top: 0;left: 0;bottom: 0;right: 0;background: linear-gradient(0deg, rgba(0,0,0,0.5), rgba(0,0,0,0.5));z-index: 1;}
#j_content .banner video{width:100%;height: auto;left: 50%;bottom: 0%;transform: translate(-50%, 20%); position: absolute;}
#j_content .banner  .banner_ct{width:1200px;height:100%;display: flex;justify-content: center;align-items: center;position: relative;}
#j_content .banner .banner_ct .icon{position: relative;z-index: 99;}
#j_content .banner .banner_ct .banner_text{font-size:14px;color:#ffffff;position: absolute;right:60px;bottom:20px;z-index: 99; }
#j_content .banner .banner_ct .banner_text:hover{text-decoration: none;}
#j_content .main_content{width:1200px;padding:70px 0;margin:0 auto;text-align:center;color:#444444;}
#j_content .main_content .btit{font-size: 32px;font-weight: 700;color: #000;text-align: center;line-height: 60px;}
#j_content .main_content .stit{font-size: 14px; color: #555;text-align: center;line-height: 30px;font-weight: 400;}
#j_content .main_content .user_box{width:1200px;margin:30px auto 0;display: flex;flex-wrap: wrap;}
#j_content .main_content .user_box a{display:block;}
#j_content .main_content .user_box a img{transition:0.3s;}
#j_content .main_content .user_box a:hover img{transform: translateY(-5px);}