.banner{
  margin-top: 90px;
  height: 240px;
  background: url(/img/case/case.jpg);
  background-position: center;
  background-repeat: no-repeat;  
}
.banner .title{
  text-align: center;
  line-height: 240px;
}
.banner span{
  color: #fff;
  font-size: 40px;
}
.container{ 
  display: flex;  
}
.container .menu{
  margin-left: 180px;
  width: 200px;
} 
.container .menu ul{
  background-color: #0b1354;
}
.container .menu li{
  border-bottom: 1px solid #eaeaea;
  padding: 20px 0 20px 35px; 
  text-align: left;
  line-height: 50px;
  font-size: 20px; 
}
.container .menu .inactive {
  color: #fff;
}
.container .menu .active{
  color: rgb(255,220,2);
}
.container .menu li a:hover{
  color:rgb(255,220,2);
}
.content{
  /* width: calc(100% - 350px); */
  width: 1000px;
}
.container .case-card{
  padding: 50px;
  display: flex;
}
.case-card .pic{
  width: 300px;
} 
.case-card .pic img{
  width: 100%;
}
.case-card .text{
  width: calc(100% - 400px);
  padding-left: 50px;
}
.case-card .text .title{
  font-size: 24px;
  font-weight: 500;
  margin-bottom: 20px;
}
.case-card .text .bg{
  font-weight: 300;
  text-align: justify;
}
.case-card .solution{
  display: flex;  
}
.case-card .solution .left{
  margin-right: 50px;
}
.case-card .sec-title{
  margin-top: 10px; 
  font-weight: 500;
}
.case-card .sec-text{
  font-weight: 300;
}
.case-card .result{
  margin-top: 20px;
  font-size: 18px;
  text-align: justify;
}
.trial{
  width: 600px;
  margin-top: 50px;
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}
.trial .title{
  font-size: 32px;
  font-weight: 500;    
}
.form{
  margin-top: 30px;
}
form{
  display: flex;
  flex-direction: column;
}
form input,form select{
  height: 45px;
  margin-bottom: 20px;
  font-size: 16px;
  line-height: 45px;
  border: 1px solid #b4b4b4;
  outline: none;
}
input:-webkit-autofill { box-shadow: 0 0 0px 1000px white inset !important;}
#welcome{
  height: 45px;
  margin-top: 30px;
  font-size: 24px;
  color: #fff;
  background-color: #003399;
  border: none;
  border-radius: 6px;
  cursor: pointer;
}
#result{
  display: none;
  margin-top: 30px;
  height: 45px;
  font-size: 24px;
  color: #fff;
  background-color: #003399;
  border: none;
  border-radius: 6px;
}
@media(max-width:1000px) {
  .container{ 
    display: block;  
  }
  .container .menu{
    width: 100%;
  } 
  .container .menu ul{
    display: flex;
    justify-content: space-around;
  }
  .container .menu li{    
    padding: 30px 0;
    text-align: center;
    border-bottom: none; 
  }
  .content{
    width: 100%;
  }
  .container .case-card{
    display: block;
  }
  .case-card .text{
    width: 100%;
    padding-left: 0px;
  }
  .case-card .pic{
    width: 70%;
    height: 70%;
    margin: 0 auto;
  }
  .case-card .solution{
    display: block; 
  } 
}