.footer{

    width:100%;

    background:#202020;

    color:#b8c3cf;

    padding:80px 0 0;

    font-family:
    "Microsoft YaHei",
    Arial,
    sans-serif; 

}


.footer-container{

    max-width:1400px;

    margin:auto;

    padding:0 40px;

    display:grid;

    grid-template-columns:
    1.6fr
    1fr
    1fr
    1fr
    1.3fr;


    gap:45px;

}


.footer-brand{

    padding-right:30px;

}


.footer-logo{

    font-size:32px;

    font-weight:700;

    letter-spacing:-1px;

    color:#ffffff;

    margin-bottom:22px;

}


.footer-brand p{

    font-size:15px;

    line-height:1.8;

    color:#aeb9c6;

    margin-bottom:25px;

}



.footer-cert{

    display:inline-block;

    padding:8px 16px;

    border-radius:30px;

    background:
    rgba(255,255,255,.08);

    font-size:13px;

    color:#d9e4ef;

}




.footer-column h4,
.footer-contact h4{

    color:#ffffff;

    font-size:17px;

    font-weight:600;

    line-height:24px;

    margin:0 0 25px 0;

    padding-bottom:12px;

    position:relative;

    text-align:left;

}


.footer-column h4::after,
.footer-contact h4::after{

    content:"";

    width:28px;

    height:2px;

    background:#2b8cff;

    position:absolute;

    left:0;

    bottom:0;

}



.footer-column a{

    display:block;

    color:#aeb9c6;

    text-decoration:none;

    font-size:15px;

    margin-bottom:14px;

    transition:.3s;

}



.footer-column a:hover{

    color:#ffffff;

    transform:translateX(4px);

}




.footer-contact p{

    font-size:15px;

    line-height:1.8;

    margin-bottom:12px;

}




.footer-contact button{


    margin-top:18px;

    padding:13px 30px;


    border-radius:30px;

    border:0;


    background:
    linear-gradient(
        135deg,
        #1677ff,
        #00b4ff
    );


    color:white;

    font-size:15px;

    cursor:pointer;


    transition:.3s;

}



.footer-contact button:hover{


    transform:
    translateY(-3px);


    box-shadow:
    0 10px 30px
    rgba(0,120,255,.35);

}




.footer-bottom{


    max-width:1400px;

    margin:60px auto 0;


    padding:
    25px 40px;


    border-top:
    1px solid
    rgba(255,255,255,.1);


    display:flex;


    justify-content:space-between;


    align-items:center;


    font-size:14px;


}



.footer-bottom a{


    color:#9ca8b5;

    text-decoration:none;

    margin-left:25px;

}


.footer-bottom a:hover{

    color:white;

}



/* ===========================
   Responsive
=========================== */


@media(max-width:1100px){


.footer-container{


    grid-template-columns:
    repeat(3,1fr);

}



.footer-brand{


    grid-column:
    span 3;

}



}



@media(max-width:768px){



.footer-container{


    padding:0 25px;


    grid-template-columns:
    1fr;


    gap:35px;

}



.footer-brand{

    grid-column:auto;

}


.footer-bottom{


    padding:
    25px;


    flex-direction:column;


    gap:20px;


    text-align:center;

}



.footer-bottom a{

    margin:0 10px;

}

/* =========================
   Mobile Footer 2026
========================= */


.footer{

    padding-top:45px;

}


.footer-container{

    width:92%;

    margin:auto;

    padding:0;

}



/* 公司介绍 */

.footer-brand{

    text-align:center;

    margin-bottom:35px;

}



.footer-logo img{

    width:180px;

}



.footer-brand p{

    font-size:14px;

    line-height:28px;

    margin-top:15px;

}



.footer-cert{

    font-size:13px;

    line-height:25px;

    color:#999;

}





/* 三个栏目 */

.footer-column{

    width:100%;

    border-top:1px solid rgba(255,255,255,.15);

    margin:0;

    padding:18px 5px; padding-bottom:0;

    position:relative;

}



.footer-column h4{

    font-size:16px;

    margin:0;

    padding:0;

}



.footer-column h4:after{

    display:none;

}


/* 隐藏大量链接 */

.footer-column a{

    display:none; 

}




/* 添加右侧箭头 */

.footer-column h4:before{

content:"+";

position:absolute;

right:15px;

top:50%;

transform:translateY(-50%);

font-size:22px;

color:#aaa;

transition:.3s;

}
.footer-column.open h4:before{

content:"−";

color:#00a896;

}






/* 联系方式 */

.footer-contact{

    border-top:1px solid rgba(255,255,255,.15);

    padding:25px 5px;

    text-align:center;

}



.footer-contact h4{

    font-size:18px;

    margin-bottom:20px;

}



.footer-contact p{

    font-size:14px;

    line-height:28px;

}



.footer-contact button{

    margin-top:15px;

    width:150px;

    height:42px;

    border-radius:25px;

}





/* 底部版权 */


.footer-bottom{

    margin-top:25px;

    padding:20px 10px;

    text-align:center;

    font-size:12px;

    line-height:25px;

}



.footer-bottom div{

    margin-top:10px;

}

.footer-column a{
    display:none;
}


.footer-column.open a{

    display:block !important;

    font-size:14px;

    line-height:24px;

    padding:8px 15px; margin-top:5px;

    color:#b8c3cf;

    border-bottom:1px solid rgba(255,255,255,.05);

}


.footer-column.open h4:before{

    content:"−";

}
}