html{
    background-color: #f2f2f2;
}
.categoryNav{
    width: 93%;
}
.categoryNav p a{
    font-size:18px;
    font-family:SegoeUI;
    font-weight:400;
    color:rgba(0,0,0,1);
}
.categoryNav p .cDetail{
    font-size:18px;
    font-family:SegoeUI;
    font-weight:400;
    color:rgba(0,0,0,1);
}
.categoryNav .serach{
    width: 19px;
    height:20px;
}
.mainBox{
    width: 950px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
}
.mainBox .list{
    width: 440px;
}
.mainBox .list li{
    font-family:SegoeUI;
    font-weight:400;
    font-size:16px;
    margin: 40px 0;
    color:rgba(0,0,0,.8);
}
.mainBox .list li:nth-child(1){
    margin: 60px 0;
    font-size:24px;
    line-height:30px;
    font-family:SegoeUI;
    font-weight:400;
    color:rgba(0,0,0,.9);
    line-height:30px;
}
.imgBg{
    width:320px;
    height:640px;
    margin: 60px 0;
}

.imgBg_call{
   background: url('../imgs/usermanual/call.png')no-repeat;
   background-size: 100% 100%;
}
.imgBg_anonymouschat{
   background: url('../imgs/usermanual/anony.png')no-repeat;
   background-size: 100% 100%;
}
.imgBg_chat{
    background: url('../imgs/usermanual/chat.png')no-repeat;
    background-size: 100% 100%;
}


.isShow{
    display: none;
  }

.lock{
    padding-top: 120px;
}
.imgBg_pwd{
    background: url('../imgs/usermanual/pwd.png')no-repeat;
    background-size: 100% 100%;
}
  
   .imgBg_lock{
      background: url('../imgs/usermanual/unlock_pwd.png')no-repeat;
      background-size: 100% 100%;
   }
  
   .imgBg_destory{
      background: url('../imgs/usermanual/destory_pwd.png')no-repeat;
      background-size: 100% 100%;
   }
   .imgBg_sendMsg{
   background: url('../imgs/usermanual/send_msg.png')no-repeat;
   background-size: 100% 100%;
   }


@media screen and (max-width: 900px) {
    .container{
        width: 100%;
        padding-top: 0px;
    }
    .categoryNav{
        width: 95%;
    }
    .categoryNav p a{
        font-size:14px;
    }
    .categoryNav p .cDetail{
        font-size:14px;
    }
    .categoryNav .serach{
        width: 14px;
        height:15px;
    }
    .mainBox{
        width: 90%;
        flex-direction: column;
        align-items: center;
    }


    .mainBox .list{
        width: 100%;
        text-align: center;
    }
    .mainBox .list li{
        font-size:14px;
        margin: 30px 0;

    }
    .mainBox .list li:nth-child(1){
        margin: 40px 0;
        font-size:18px;
    }

    .imgBg{
        margin: 23px auto;
        width: 260px;
        height:516px;
    }

    .imgBg_call{
        background: url('../imgs/usermanual/call.png')no-repeat;
        background-position: center;
        background-size: cover;
     }
     .imgBg_anonymouschat{
        background: url('../imgs/usermanual/anony.png')no-repeat;
        background-position: center;
        background-size: cover;
    }
    .imgBg_chat{
        background: url('../imgs/usermanual/chat.png')no-repeat;
        background-position: center;
        background-size: cover;
    }


    .isShowPc{
        display: none;
    }
    .isShow{
        display:block;
    }
      .lock{
        padding-top: 0px;
    }
     .imgBg_pwd{
        background: url('../imgs/usermanual/pwd.png')no-repeat;
        background-position: center;
        background-size: cover;
     }
     .imgBg_lock{
        background: url('../imgs/usermanual/unlock_pwd.png')no-repeat;
        background-position: center;
        background-size: cover;
     }
     .imgBg_destory{
        background: url('../imgs/usermanual/destory_pwd.png')no-repeat;
        background-position: center;
        background-size: cover;
     }

     .imgBg_sendMsg{
        background: url('../imgs/usermanual/send_msg.png')no-repeat;
        background-position: center;
        background-size: cover;
     }



}
@media screen and (max-width: 360px) {
    .categoryNav p a{
        font-size:12px;
    }
    .categoryNav p .cDetail{
        font-size:12px;
    }
}