:root{
   --color-primary:rgb(114, 120, 99);/* 鼠标指上去换色 */
   --color-white:rgb(252, 252, 252);/* 字体颜色 */
   --color-black:rgb(0, 0, 0);/* 背景颜色 */
   --color-black-l:rgb(255, 0, 153);
}
*{
   margin: 0;
   padding: 0;
   box-sizing: border-box;
   font-family: 'open-sans','sans-serif';
}
/* 导航栏开始 */
li{
   list-style: none;
   white-space: nowrap;
}
a{
   text-decoration: none;
   color: #fff;
   font-size: 1rem;
   
}

a:hover{
   color:blue;
}
header{
   position: relative;
   padding: 0 2rem;
   background-color: var(--color-black);
   border: 1px solid rgb(100, 146, 215);
} 


.navbar{
   width: 100%;
   height: 60px;
   max-width: 100%;
   margin: 0 auto;
   display: flex;
   align-items: center;
   justify-content: space-between;
}
.navbar .logo a{
   font-size: 1.5rem;
   font-weight: bold;
}
.navbar .logo img{/* 艾登堡logo */
   width: 200px;
   height: 150px;
}
.navbar .links{
   display: flex;
   gap: 2rem;
}

.navbar .toggle_btn{
   color: #fff;
   font-size: 1.5rem;
   cursor: pointer;
   display: none;
}
.action-btn{
   background-color: blueviolet;
   color: #fff;
   padding: 0.5rem 1rem;
   border: none;
   outline: none;
   font-size: 0.8rem;
   font-weight: bold;
   cursor: pointer;
} 
.action-btn:hover{
   scale: 1.0s;
   color:#fff;
}

.action-btn:active{
   scale: 0.9s;
}


.dropdown_menu{
 /*   position: absolute;  */
   display: none;
   /* right: 1rem; */
   /* top: 60px; */
   height: 0;
   width: 100%;  /* 缩小栏大小  */
   background: #000000;
   backdrop-filter: blur(15px);
   overflow: hidden;
   transition: height 0.2s cubic-bezier(0.175, 0.885, 0.32,1.275);
} 

.dropdown_menu.open{
   height: 240px;

}

.dropdown_menu li{
   padding: 0.7rem;
   display: flex;
   align-items: center;
   justify-content: center;
}
.dropdown_menu .action-btn{
   width: 100%;
   display: flex;
   justify-content: center;
}

section#hero{
   height: calc(100vh - 60px);
   display: flex;
   flex-direction: column;
   align-items: center;
   justify-content: center;
   text-align: center;
   color: #fff;
}




@media (max-width:1250px){
   .navbar .links,
   .navbar .action-btn{
       display: none;
   }
   .navbar .toggle_btn{
       display: block;
   }

   .dropdown_menu{
       display: block;
   }
}

@media (max-width:500px){
   .dropdown_menu{
       left: 2rem;
       width: unset;
   }
}






.navbar{   
   
   display: flex;
   justify-content: space-between;
   align-items: center;
   padding: 0 5%;
   position: relative;

}
.navbar ul{
   list-style: none;
   display: flex;
}
.navbar ul li{
   padding: 10px 30px;
   position: relative;
}
.navbar ul li a{
   font-size: 20px;
   color: var(--color-white);
   text-decoration: none;
   transition: all 0.3s;
}
.navbar ul li a:hover{
   color:rgba(170, 170, 170, 0.626);
} 
.fas{
   float:right;
   margin-left: 10px;
   padding-top: 3px;
}
.dropdown-menu{
   display: none;
   z-index: 8;
} 
.navbar ul li:hover .dropdown-menu{
   display: block;
   position: absolute;
   left: 0;
   top:100%;
   background-color: var(--color-black);
}
.navbar ul li:hover .dropdown-menu ul{
   display: block;
   margin: 10px;
}
.navbar ul li:hover .dropdown-menu ul li{
   width: 150px;
   padding-left: 15px;
   
}
.dropdown-menu-1{
   display: none;
}
.navbar ul li:hover .dropdown-menu-1{
display: block;
position: absolute;
left: 150px;
top:0;
background-color: var(--color-black);
}
.navbar ul li:hover .dropdown-menu-2{
   display: block;
   position: absolute;
   left: 0;
   top:100%;
   background-color: var(--color-black);
}
.dropdown-menu-2{
   display: none;
   z-index: 8;
}
.navbar ul li:hover .dropdown-menu-2 ul{
   display: block;
   margin: 10px;
}
.navbar ul li:hover .dropdown-menu-2 ul li{
   width: 150px;
   padding-left: 40px;
}

.navbar ul li:hover .dropdown-menu-4{
   display: block;
   position: absolute;
   left: 0;
   top:100%;
   background-color: var(--color-black);
}
.dropdown-menu-4{
   display: none;
   z-index: 8;
}
.navbar ul li:hover .dropdown-menu-4 ul{
   display: block;
   margin: 10px;
}
.navbar ul li:hover .dropdown-menu-4 ul li{
   width: 150px;
   padding-left: 20px;
}

.btn a{
   padding-right: 45px;
}
 /* 导航栏结束 */
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
     

 /* 页脚开始 */
 *{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: "Poppins" , sans-serif;
}

body{
    min-height: 100vh;
    width: 100%;
    background: #eeeceb;
}
footer{
    position:relative;
    background: rgb(0, 0, 0);
    width: 100%;
    bottom:0;
    left: 0;
}
footer::before{
    content: '';
    position: absolute;
    left: 0;
    top: 100px;
    height: 1px;
    width: 100%;
    background: #AFAF86;
}
footer .content{
    background: rgb(0, 0, 0);
    max-width: 1250px;
    margin: auto;
    padding: 30px 40px 40px 40px;
}
footer .content .top{
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 50px;

}
.content .top .logo-details{
    color: #fff;
    font-size: 30px;
}
.content .top .media-icons{
    display: flex;
}
.content .top .media-icons a{
    height: 40px;
    width: 40px;
    background: rgb(232, 10, 10);
    margin: 0 8px;
    border-radius: 50%;
    text-align: center;
    line-height: 40px;
    color: #fff;
    font-size: 17px;
    text-decoration: none;
    transition: all 0.4s ease;
}

.top .media-icons a:nth-child(1){
background: #db1b1b;
}
.top .media-icons a:nth-child(1):hover{
     color:#4267B2;
    background: #fff;
   
}

.top .media-icons a:nth-child(2){
    background: #1DA1F2;
    }
.top .media-icons a:nth-child(2):hover{
        color:#1DA1F2;
        background: #fff;
    }
    
.top .media-icons a:nth-child(3){
        background: #E1306C;
        }
.top .media-icons a:nth-child(3):hover{
            color:#E1306C;
            background: #fff;
        }    

 .top .media-icons a:nth-child(4){
            background: #0077b5;
            }
.top .media-icons a:nth-child(4):hover{
                color:#0077b5;
                background: #fff;
            }   
            
.top .media-icons a:nth-child(5){
                background: #FF0000;
                }
.top .media-icons a:nth-child(5):hover{
                    color:#FF0000;
                    background: #fff;
 }  
footer .content .link-boxes{
    width: 100%;
    display: flex;
    justify-content: space-between;
}
footer .content .link-boxes .box{
background: rgb(0, 0, 0);
width: calc(100% / 5 - 10px);
}
.content .link-boxes .box .link_name{
    color: #fff;
    font-size: 18px;
    font-weight: 400;
    margin-bottom: 10px;
    position: relative;
}

.link-boxes .box .link_name::before{
    content: '';
    position: absolute;
    left: 0;
    bottom: -2px;
    height: 2px;
    width: 35px;
    background: #fff;
}
.content .link-boxes .box
.content .link-boxes .box li{
    margin: 6px 0;
    list-style: none;
}
.content .link-boxes .box li a{
    color: #fff;
    font-size: 14px;
    font-weight: 400;
    text-decoration: none;
    opacity: 0.8;
    transition: all 0.4s ease;
}
.content .link-boxes .box li a:hover{
opacity: 1;
text-decoration: underline;
}
.content .link-boxes .input-box{
    margin-right: 55px;
}
.link-boxes .input-box input{
    height: 40px;
    width: calc(100% + 55px);
    outline:none;
    border: 2px solid #AFAFB6;
    background: #000000;/*email背景  */
    border-radius: 4px;
    padding: 0 15px;
    font-size: 15px;
    color: #fff;
    margin-top: 5px ;
}
.link-boxes .input-box input::placeholder{
    color: #AFAF86;
    font-size: 16px;
}
.link-boxes .input-box input[type="button"]{
    background:#fff;
    color: #000000;
    border: none;
    font-size: 18px;
    font-weight: 500;
    margin: 4px 0;
    opacity: 0.8;
    cursor: pointer;
    transition: all 0.4s ease;
}
.input-box input[type="button"]:hover{
    opacity: 1;
}

footer .bottom-details{
    width: 100%;
    background: #01063c;/* 尾部 */
}
footer .bottom-details .bottom_text{
    max-width: 1250px;
    margin: auto;
    padding: 20px 40px;
    display: flex;
    justify-content: space-between;
}
.bottom-details .bottom_text span,
.bottom-details .bottom_text a{
    font-size: 14px;
    font-weight: 300;
    color: #fff;
    opacity: 0.8;
    text-decoration: none;
}
.bottom-details .bottom_text a:hover{
    opacity: 1;
    text-decoration: underline;
}

.bottom-details .bottom_text a{
    margin-right: 10px;
}
@media (max-width: 900px){
    footer .content .link-boxes{
        flex-wrap: wrap;
    }
    footer .content .link-boxes .input-box{
        width: 40%; 
        margin-top: 10px;
    }
}
@media (max-width: 700px){
  footer{
    position: relative;
  }
    .content .top .logo-details{
    font-size: 26px;
  }
  .content .top .media-icons a{
    height: 35px;
    width: 35px;
    font-size: 14px;
    line-height: 35px;
  }
  footer .content .link-boxes .box{
    width: calc(100% / 3 - 10px);
    }
    footer .content .link-boxes .input-box{
        width: 60%;
    }
    .bottom-details .bottom_text span,
    .bottom-details .bottom_text a{
        font-size: 12px;
    }
}
@media (max-width: 520px){
    footer::before{
        top: 145px;
    }
    footer .content .top{
      flex-direction: column;
    }
    .content .top .media-icons{
        margin-top: 16px;
    }
    footer .content .link-boxes .box{
        width:  calc(100% / 2 - 10px);
    }
    footer .content .link-boxes .input-box{
        width: 100%;
    }
}
 
 
 .title-3{
    text-align: center;/* 关于公司 */
    
 }
 .banner1 img{
    width: 100%;
    height: 500px;
 }
 
 
 
 .title-11{
    text-align: center;
    padding-top: 20px;
 }
 
 
/* 下载开始 */
.text a{
   color: rgb(0, 0, 0);
   
 }
 .text a:hover{
   color:#E1306C
 }
.articles{
padding:rem /* 上边距 */ 0rem /* 马上下载右边距 */ 20rem /* 艾登堡边距 */;
  

}
 .xinwen-item {
   display: flex;
   justify-content: space-between;
   margin: 20px 0;/* 中间上下边距 */
   padding-top: 10px;
   border-bottom:1px solid #5c655daa;

}
/* .fa {
   display: inline-block;
   font: normal normal normal 14px / 1 FontAwesome;
   font-size: inherit;
   text-rendering: auto;
   -webkit-font-smoothing: antialiased;
   -moz-osx-font-smoothing: grayscale;
   padding-top: 20px;
} */
.xinwen-item .btn a {
   font-size: 14px;
   background: #000000;
   color: #fff;
   padding: 5px 75px;
}
/* 下载结束 */
.tu2 img{    
   text-align: center;
   width: 100%;
}