body {
    font-family: "Roboto","Noto Sans TC",-apple-system,BlinkMacSystemFont,"Microsoft JhengHei",Segoe UI,Helvetica,Arial,sans-serif,Apple Color Emoji,Segoe UI Emoji;
    font-size: 1rem;
    font-weight: 400;
    line-height: 1.5;
    color: #000;
}
.footer {
    background-color: #333;
    color: white;
    padding: 20px 0;
}
.footer .container {
    display: flex;
    justify-content: space-between;
    margin-top: 20px;
}
.nav-tabs .nav-item.show .nav-link, .nav-tabs .nav-link.active {
    background-color: #007bff;
    color: white;
}
#header_logo {
    max-height: 41px;
}
#response_ai_logo_block{
    margin-left: 10px;
}
#structure_img{
    width: 70%;
    height: 70%;
}
#nine_img{
    width: 70%;
    height: 70%;
}
#footer_logo {
    max-height: 41px;
}
#footer_left_text_block {
    margin-top: 20px;
}
#footer_qe_code_img {
    width: 30%;
    height: 30%
}
#footer_qr_code_a {
    text-decoration: none;
    color: white;
}
#footer_qr_code_a:hover {
    color: white;
}
main, #header_menu, #case_goback_btn_block button {
    font-size: 1.2rem;
}
main{
    line-height: 2;
}
.li_title, .highlight_content, .caseTitle, .caseSubtitle {
    font-weight: bold;
}
.underline_content {
    text-decoration: underline;
}
.card-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-top: 20px;
    background-color: #f8f9fa;
}
.card {
    background-color: white;
    border: 1px solid #ddd;
    border-radius: 8px;
    padding: 20px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
    transition: transform 0.2s, box-shadow 0.2s;
}
.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
    background-color: #fffaf7;
}
.card h3 {
    margin-top: 0;
    color: #4a6fa5;
    font-weight: bold;
}
.card p {
    color: #000;
}
.case_image_align, #case_goback_btn_block {
    text-align: center;
}
.case_image_illastrate_text, .case_hr, #case_goback_btn_block, .case_vidoe {
    margin-top: 20px;
    margin-bottom: 20px;
}