.container-fluid{padding:0;}
.active{color:#38b9fd!important}
.help_mainbody .help_tip{height: 70px;background: #f8fcff;width: 100%;}
.help_mainbody .help_tip h3{line-height: 70px;font-size: 19px;}

.help_mainbody .help_tip h3{background:url('../images/help_logoshow.jpg') no-repeat 20px 50% ; padding-left: 20px; }
.help_mainbody .help_tip h3 span{display: block;padding-left: 30px;}

.help_mainbody .help_tip h2{line-height: 70px;font-size: 19px;}

.help_mainbody .help_tip h2{background:url('../images/help_close.jpg') no-repeat 20px 50% ; padding-left: 20px; }
.help_mainbody .help_tip h2 span{display: block;padding-left: 30px;}
.down-li p{cursor:pointer;}
/*主体部分*/
.help_mainbody .main_sectionHelp .operating_guide .teacher_baseuse ul li:nth-child(4) {border-bottom:  1px solid #e5e8ea!important;}
.help_mainbody .main_sectionHelp .operating_guide .teacher_courseuse ul li:nth-child(4) {border-bottom:  1px solid #e5e8ea!important;}
.help_mainbody .main_sectionHelp .operating_guide .student_baseuse ul li:nth-child(4) {border-bottom:  1px solid #e5e8ea!important;}
.help_mainbody .main_sectionHelp .operating_guide .student_courseuse ul li:nth-child(4) {border-bottom:  1px solid #e5e8ea!important;}

.help_mainbody{padding:57px 0 150px 0;}
.help_mainbody .main_sectionHelp .operating_guide{padding-left: 28px;padding-right: 50px;}
.help_mainbody .main_sectionHelp .operating_guide h3{font:normal normal 20px/46px "微软雅黑";border-bottom: 1px solid #e5e8ea; color:#010101;}
/*教师基本使用*/
.help_mainbody .main_sectionHelp .operating_guide .teacher_baseuse p{font:normal normal 20px/45px "微软雅黑";color:#373a41;border-bottom: 1px solid #e5e8ea;background:url('../images/helpe_up.jpg') no-repeat 100% 50% ;}
.help_mainbody .main_sectionHelp .operating_guide .teacher_baseuse ul{ padding-left:20px; }
.help_mainbody .main_sectionHelp .operating_guide .teacher_baseuse ul li{padding-left:20px;font:normal normal 16px/45px "微软雅黑";
                                                                            background:url('../images/help_close.jpg') no-repeat 1px 50% ;
                                                                            border-bottom:  1px solid #e5e8ea;
                                                                            }
.help_mainbody .main_sectionHelp .operating_guide .teacher_baseuse ul li:nth-child(4){padding-left:20px;font:normal normal 16px/45px "微软雅黑";
                                                                            background:url('../images/help_close.jpg') no-repeat 1px 50% ;
                                                                            border-bottom:none;
                                                                            }
/*教师课程使用                                                                          */
.help_mainbody .main_sectionHelp .operating_guide .teacher_courseuse p{font:normal normal 20px/45px "微软雅黑";color:#373a41;border-bottom: 1px solid #e5e8ea;background:url('../images/helpe_up.jpg') no-repeat 100% 50% ;}
.help_mainbody .main_sectionHelp .operating_guide .teacher_courseuse ul{ padding-left:20px; }
.help_mainbody .main_sectionHelp .operating_guide .teacher_courseuse ul li{padding-left:20px;font:normal normal 16px/45px "微软雅黑";
                                                                            background:url('../images/help_close.jpg') no-repeat 1px 50% ;
                                                                            border-bottom:  1px solid #e5e8ea;
                                                                            }
.help_mainbody .main_sectionHelp .operating_guide .teacher_courseuse ul li:nth-child(4){padding-left:20px;font:normal normal 16px/45px "微软雅黑";
                                                                            background:url('../images/help_close.jpg') no-repeat 1px 50% ;
                                                                            border-bottom:none;
                                                                            }
/*学生基本使用                                                                          */
.help_mainbody .main_sectionHelp .operating_guide .student_baseuse p{font:normal normal 20px/45px "微软雅黑";color:#373a41;border-bottom: 1px solid #e5e8ea;background:url('../images/helpe_up.jpg') no-repeat 100% 50% ;}
.help_mainbody .main_sectionHelp .operating_guide .student_baseuse ul{ padding-left:20px; }
.help_mainbody .main_sectionHelp .operating_guide .student_baseuse ul li{padding-left:20px;font:normal normal 16px/45px "微软雅黑";
                                                                            background:url('../images/help_close.jpg') no-repeat 1px 50% ;
                                                                            border-bottom:  1px solid #e5e8ea;
                                                                            }
.help_mainbody .main_sectionHelp .operating_guide .student_baseuse ul li:nth-child(4){padding-left:20px;font:normal normal 16px/45px "微软雅黑";
                                                                            background:url('../images/help_close.jpg') no-repeat 1px 50% ;
                                                                            border-bottom:none;
                                                                            }
/*学生课程使用                                                                          */
.help_mainbody .main_sectionHelp .operating_guide .student_courseuse p{font:normal normal 20px/45px "微软雅黑";color:#373a41;border-bottom: 1px solid #e5e8ea;background:url('../images/helpe_up.jpg') no-repeat 100% 50% ;}
.help_mainbody .main_sectionHelp .operating_guide .student_courseuse ul{ padding-left:20px; }
.help_mainbody .main_sectionHelp .operating_guide .student_courseuse ul li{padding-left:20px;font:normal normal 16px/45px "微软雅黑";
                                                                            background:url('../images/help_close.jpg') no-repeat 1px 50% ;
                                                                            border-bottom:  1px solid #e5e8ea;
                                                                            }
.help_mainbody .main_sectionHelp .operating_guide .student_courseuse ul li:nth-child(4){padding-left:20px;font:normal normal 16px/45px "微软雅黑";
                                                                            background:url('../images/help_close.jpg') no-repeat 1px 50% ;
                                                                            border-bottom:none;
                                                                            }
/*账号注册*/
.account_register h3{font:normal normal 20px/46px "微软雅黑";border-bottom: 1px solid #38b9fd; color:#010101;margin-bottom: 20px;
    text-align: center;}
/* .account_register  img{margin-left: 40px;} */
.account_register .frist_step p{font:normal normal 16px/70px "微软雅黑";}

.account_register .second_step p{font:normal normal 16px/70px "微软雅黑";}
.account_register .thid_step p{font:normal normal 16px/70px "微软雅黑";}
.account_register .fourth_step p{font:normal normal 16px/70px "微软雅黑";}
.account_register .fifth_step p{font:normal normal 16px/70px "微软雅黑";}
.account_register  .remark{margin-top:20px;}
.account_register  .remark h4{font:normal normal 16px "微软雅黑";}
.account_register  .remark p{font:normal normal 16px/50px "微软雅黑";}

/*动态添加样式*/
.hide{display:none;}
/*手机自适应*/
@media screen and (max-width: 420px) {
img{width: 100%;}
.help_mainbody .main_sectionHelp .operating_guide {
    padding-left: 0px;
    padding-right: 0px;
}
.help_mainbody .main_sectionHelp .operating_guide .teacher_baseuse p{
  font: normal normal 0.2rem/0.5rem "微软雅黑";
  padding:0.3rem 0.3rem 0.3rem 0;
}
.help_mainbody .main_sectionHelp .operating_guide .teacher_courseuse p{
  font: normal normal 0.2rem/0.5rem "微软雅黑";
   padding:0.3rem 0.3rem 0.3rem 0;
}
.help_mainbody .main_sectionHelp .operating_guide .student_baseuse p{
  font: normal normal 0.2rem/0.5rem "微软雅黑";
   padding:0.3rem 0.3rem 0.3rem 0;
}
.help_mainbody .main_sectionHelp .operating_guide .student_courseuse p{
  font: normal normal 0.2rem/0.5rem "微软雅黑";
   padding:0.3rem 0.3rem 0.3rem 0;
}
.account_register img{width: 100%;margin-left:0;}
.account_register .frist_step p {font:normal normal 0.3rem/0.5rem "微软雅黑"; padding:0.3rem 0;} 
.account_register .second_step p {font:normal normal 0.3rem/0.5rem "微软雅黑"; padding:0.3rem 0;} 
.account_register .thid_step  p {font:normal normal 0.3rem/0.5rem "微软雅黑"; padding:0.3rem 0;} 
.account_register .fourth_step  p {font:normal normal 0.3rem/0.5rem "微软雅黑"; padding:0.3rem 0;} 
.account_register .fifth_step  p {font:normal normal 0.3rem/0.5rem "微软雅黑"; padding:0.3rem 0;} 
.account_register .remark h4{font:normal normal 0.3rem "微软雅黑";}
.account_register .remark p{font:normal normal 0.26rem/0.4rem "微软雅黑"; padding:0.2rem 0;}
}