.operation_guide{width:100%;color:#333;background:#e9e9e9}.operation_guide .operation_guide_box{width:1080px;height:auto;background:#fff;margin:0 auto;padding:20px}.operation_guide .operation_guide_box .operation_guide_step{margin-top:20px}.operation_guide h2{font-size:28px;margin:0 auto;text-align:center;line-height:60px}.operation_guide h3{font-size:24px}.operation_guide .con_title{font-weight:700;font-size:18px;line-height:36px}.operation_guide .con_subtitle{font-size:18px;line-height:36px;color:#00f;margin-left:20px}.operation_guide .con_text{color:#666;font-size:18px;line-height:36px;margin-left:20px}.operation_guide .img_xcx{width:200px;margin-left:10px}.operation_guide .img_pc{display:inline-block;width:500px;margin:20px;border-radius:10px;margin-left:20px}.operation_guide .img_pc1{display:inline-block;width:800px;margin:20px;border-radius:10px}.operation_guide .mb20{margin-bottom:20px}.operation_guide .font-blue{color:red}