.copyright{
    width: 100%;
    padding-right: 15px;
    padding-left: 15px;
    margin-right: auto;
    margin-left: auto;
}
.pri_pro_box {
    width: 100%;
    background: rgba(0, 0, 0, .65);
    padding: 1.5rem 2rem;
    position: fixed;
    right: 0px;
    bottom: 0px;
    z-index: 999;
    transition: .3s;
    display: flex;
    justify-content: center;
}

#div_background span {
    color: #fff;
}

.pri_pro_box a {
    color: #35a7e9;
}

.pri_pro_box a:hover {
    color: #ff8552;
}

.pri_btn {
    width: auto;
    position: relative;
    margin-left: 1rem;
    min-width: 150px;
}

.pri_pro_box a.btn_agree {
    background: rgba(255, 255, 255, .3);
    padding: 10px 20px;
    color: #fff;
    transition: .3s;
    border: 1px solid #fff;
}

.pri_pro_box a.btn_agree:hover {
    background: #ff8552;
    border-radius: 10px;
    transition: .3s;
    color: #fff;
}

.page_pri strong {
    margin-bottom: 2rem;
}

.page_pri ul li {
    position: relative;
    padding: 0 0 0.5rem 30px;
    font-size: 18px;
}

.page_pri ul li::before {
    content: ">";
    width: 25px;
    height: 25px;
    color: #ff8552;
    font-size: 2rem;
    line-height: 1;
    position: absolute;
    top: -6px;
    left: 0;
}
.pri_link{
    color: #35a7e9;
}
.pri_link:hover{
    color: #ff8552;
}

@media screen and (max-width:1200px) {
    .pri_pro_box {
        flex-direction: column;
    }
    .pri_btn {
        width: 100%;
        margin-top: 1rem;
        display: flex;
        justify-content: flex-end;
    }
}
@media screen and (max-width:991px){
    .copyright{
        position: relative;
    }
    .copyright>a {
        position: absolute;
        top: -30px;
        left: calc(50% - 330px);
    }
}
@media screen and (max-width: 767px){
    .copyright>a {
        left: calc(50% - 240px);
    }
}
@media screen and (max-width:575px){
    .copyright>a{
        left: 30px;
    }
}