header {
    padding: 10px 20px;
    font-size: 1.2rem;
    border-right: var(--defaultBorder);
    border-left: var(--defaultBorder);
    border-bottom: var(--defaultBorder);
    border-radius: 0px 0px 10px 10px;
    background-color: var(--elementBG);
    width: 1000px;
    margin-bottom: -10px;
}

/* Navigation */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: var(--elementBG);
    position: relative;
}
.link {
    color: var(--mainColor);
    font-weight: bolder;
    cursor: pointer;
    font-family:
        "Microsoft YaHei",
        "PingFang SC",
        "Hiragino Sans GB",
        "STHeiti",
        sans-serif;
        font-size: 1rem;
}

#title_link {
    font-family: Verdana;
}

.link:hover {
    color: lightblue;
}

.nav_links {
    display: none;
}

.nav_links.active {
    display: flex;
    flex-direction: column;
    align-content: center;
    align-items: center;
    gap: 10px;
    padding: 10px;
    position: absolute;
    top: 35px;
    right: 0;
    width: 200px;
    background-color: var(--elementBG);
    box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.2);
    z-index: 999;
    border-right: var(--defaultBorder);
    border-left: var(--defaultBorder);
    border-bottom: var(--defaultBorder);
    border-radius: 0px 0px 10px 10px;
    font-size: 1.5rem;
    
}

.menu-toggle {
    display: block;
    cursor: pointer;
    z-index: 1000;
}

.menu-toggle .bar {
    display: block;
    width: 25px;
    height: 3px;
    margin: 5px auto;
    background-color: var(--mainColor);
    transition: all 0.3s ease-in-out;
}


footer {
    padding: 10px 20px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    align-items: center;
    border: var(--defaultBorder);
    border-radius: 10px 10px 0px 0px;
    background-color: var(--elementBG);
    width: 1000px;
    gap: 10px;
    margin-top: 25px;
}
.footer_section {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.footer_box {
    display: flex;
    flex-direction: column;
    align-content: center;
    align-items: center;
    gap: 10px;
}
.footer_text {
    color: var(--mainColor);
    font: var(--normalFont);
    font-weight: bolder;
    text-align: center;
    font-size: 1rem;
}
.footer_link {
    font: var(--normalFont);
    font-size: 0.8rem;
    /*width: 50px;*/
    height: 10px;
    padding: 10px;
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
}



 /*Tablet and Desktop Styles */
/*@media (min-width: 1000px) {*/
/*    .nav_links {*/
/*        display: flex;*/
/*        gap: 20px;*/
/*        width: 400px;*/
/*    }*/

/*    .menu-toggle {*/
/*        display: none;*/
/*    }*/
/*}*/

@media (max-width: 999px) {
    .link:NOT(#title_link) {
        border: var(--defaultBorder);
        border-radius: 10px;
        padding: 20px;
        background-color: var(--mainBG);
        width: 180px;
        text-align: center;
    }
    header, footer {
        width: 100%;
    }
}









/*Tablet and Desktop Styles */
@media (max-width: 768px) {
    .footer_text {
        font-size: 0.7rem;
    }
}
@media (max-width: 450px) {
    footer {
        flex-direction: row;
    }
    .footer_section {
        flex-direction: column;;
        justify-content: center;
        gap: 10px;
    }
}