:root {
    --dl-blue-color: #A7D0ED;
    --dl-bg-color: #ffffff;
    --dl-text-color:#2B2B2B;
}

::selection {
    background: var(--dl-blue-color);
    color: var(--dl-text-color);
}

.h3, h3 {
    font-size: 1.75rem;
    line-height: 1.2;
}

body {
    font-size: 16px;
}

.body {
    background: var(--dl-bg-color);
}

.btn-menu {
    color: white;
    display: inline-block;
    text-align: center;
    text-decoration: none;
    vertical-align: middle;
    cursor: pointer;
    -webkit-user-select: none;
    -moz-user-select: none;
    user-select: none;
    padding: 0.375rem 0.75rem;
    line-height: 30px;
    border-bottom: 3px solid transparent;
}

.btn-menu a{
    color: white;
}

.btn-menu:hover{
    color: var(--prime-color);
    border-bottom: 3px solid var(--prime-color);
    transition: 0.2s color ease-in-out;
    transition: 0.2s border-color ease-in-out;
}

.color-orange {
    color:#FFA113;
}

.text-bold {
    font-weight: bold;
}

.dl-color {
    color: var(--dl-blue-color);
}

.dl-green-color {
    color: var(--prime-color);
}

.dl-purple-color {
    color: var(--prime-color);
}

.dl-btn,
.dl-btn:hover
 {
    border-radius: 0.5rem;
    background: var(--prime-color) !important;
    box-shadow: 0px 7.4px 14.8px 0px rgba(7, 7, 26, 0.05);
    padding: 0.5rem 2rem;
    margin: 0 0.5rem 1.5rem;
    transition: all 0.2s ease-in-out;
    font-style: normal;
    font-weight: 900;
    color: white !important;
    border: none !important;
}


.dl-btn i{
    margin: 0 0 0 .7rem;
    transition: all .2s ease-in-out;

}

.dl-btn:hover {
    scale: 1.1;
}

#hero {
    text-align: center;
}

#hero > img {
    height: 100%;
    margin: auto;
    display: block;
}

#dlSearchBtn {
    border: none !important;
}

#classList > div:nth-child(even) {
    background-color: var(--bs-gray-200);
}

.class-list-link {
    text-align: center;
}

[id^="section"] .card {
    border-radius: 0.5rem;
}

[id^="section"] .card-row {
    padding-top: 1rem;
    margin-bottom: 1rem;
    row-gap: 1rem;
    justify-content: left;
}

[id^="section"] .card-row:last-child {
    padding-top: 0;
}

[id^="section"] .card-body .card-image img {
    border-radius: 0.5rem;
    width: 100%;
    aspect-ratio: 16/9;
}

[id^="section"] .card-body .card-image-tag {
    position: absolute;
    left: 1.5rem;
    top: 1.5rem;
    background-color: var(--prime-color);
    color: white;
    padding: 0 0.5rem;
    border-radius: 0.5rem;
    font-size: 0.7rem;
}

[id^="section"] .card-body .card-title {
    font-weight: bolder;
    height: 3rem;
}

.card-description {
    --max-lines: 2;
    --line-height: 1.4;

    max-height: calc(var(--max-lines) * 1rem * var(--line-height));
    line-height: var(--line-height);

    overflow: hidden;
    position: relative;
    display: -webkit-box;
    vertical-align: text-top;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: var(--max-lines);
}

.card-description:has(+ .expand-btn:not(:checked)):before  {
    content: "";
    position: absolute;
    height: calc(1rem * var(--line-height));
    width: 100%;
    bottom: 0;
    pointer-events: none;
}



.expand-btn {
    appearance: none;
    cursor: pointer;
    text-align: center;
    border: 1px solid var(--prime-color);
    color: var(--prime-color);
    background-color: white;
    width: 2rem;
    border-radius: 100px;
    height: 1rem;
    padding: 0;
    line-height: 1;
    display: block;
    margin: -20px 0 20px auto !important;
    transition: all 0.3s ease-in-out;
}
.expand-btn:hover {
    color: white;
    background-color: var(--prime-color);
}

.expand-btn:checked {
    margin-top: 0 !important;
}

.expand-btn::before {
    content: "+";
}

.expand-btn:checked::before {
    content: "-";
}

.card-description:has(+ .expand-btn:not(:checked)) {
    width: calc(100% - 2rem);
}

.card-description:has(+ .expand-btn:checked) {
    max-height: none;
    -webkit-line-clamp: unset;
}

[id^="section"] .card-body .card-details {
    display: flex;
    justify-content: center;
}

[id^="section"] .card-body .card-btn .btn {
    background-color: var(--prime-color);
    width: 100%;
    --bs-btn-padding-x: 0;
    border-radius: 0.5rem;
    color: white;
    transition: all 0.2s ease-in-out;
}

[id^="section"] .card-body .card-btn .btn.outline{
    border-color: var(--prime-color);
    background: rgba(0, 0, 0, 0.00);
    width: 100%;
    --bs-btn-padding-x: 0;
    border-radius: 0.5rem;
    color: var(--prime-color);
    transition: all 0.2s ease-in-out;
}

[id^="section"] .card-body .card-btn .btn:hover {
    scale: 1.05;
    font-weight: 900;
    background-color: rgb(119, 72, 226);
}

[id^="section"] .card-body .card-btn .btn.outline:hover{
    background: rgba(0, 0, 0, 0.00);
}

[id^="section"] .card-body .card-btn{
    display: flex;
    flex-flow: row;
    justify-content: space-between;
}

[id^="section"] .card-body .card-btn a {
    color: white;
    width: 100%;
}

[id^="section"] .row.card-row.hide-cards > div
{
    display: none;
}

[id^="section"] .row.card-row.hide-cards > div:nth-child(n):nth-child(-n+4) {
    display: block;
}

[id^="section"] .btn.dl-btn.more-text>span:after {
    content: "更多";
}
[id^="section"] .btn.dl-btn.less-text>span:after {
    content: "更少";
}

[id^="section"] .btn.dl-btn.less-text i {
    transform: rotate(180deg);
}

[id^="section"] .show-btn {
    text-align: center;
}

[id^="section"] .show-btn .dl-btn {
    margin-top: 1rem;
}

[id^="section"] .show-btn a {
    font-size: 1rem;
}

[class$="-video-title"],
[class$="-partner-title"] {
    background: #111111;
    border-radius: 0 0 1rem 1rem;
    padding: 1rem;
    text-align: center;
    color: white;
}

#business {
    background-color: var(--bs-gray-100);
}

#classes .classes-search {
    color: var(--prime-color);
    background-color: rgba(125, 211, 252, 0.1);
    padding: 1.5rem;
    border-radius: 50px;
    font-size: 1.5rem;
    margin: auto;
    width: fit-content;
    font-weight: bolder;
    border: 1px solid #7DD3FC;
    transition: all 0.2s ease-in-out;
}

#classes .classes-search i {
    margin-right: 0.5rem;
}

#classes a:hover .classes-search {
    background-color: rgba(125, 211, 252, 0.2);
}

#classesInfo h3 {
    color: var(--prime-color);
}

#classesInfo .col-md-6 {
    margin: auto;
    padding: 0 2.5rem;
}

#classesInfo .row .col {
    margin: 1rem 0;
}

#classesInfo .classes-info-graph {
    margin-right: 1rem;
}

#classesInfo [class^=classes-info-graph] {
    display: inline-table;
}

#classesInfo .classes-info-graph-text span {
    font-size: 2rem;
}

#business .business-btn {
    text-align: center;
}

#business .business-btn-link .dl-btn {
    font-size: 1.5rem;
}

.scroll-to-top {
    display: none !important;
}

/* RDW */

@media (max-width: 991px) {
    #expertLead {
        background-position: right;
    }    
}

@media (max-width: 767px) {
    .card-description {
        margin-bottom: 1rem !important;
        --max-lines: 10
    }
    .expand-btn {
        display: none;
    }
    #classes .classes-search {
        font-size: 1.3rem;
    }
    #classesInfo .classes-info-graph-text span {
        font-size: 1.5rem;
    }
    #classesInfo .col {
        padding-right: 0;
    }
}

@media (max-width: 767px) {
    [id^="section"] .card-body .card-title {
        height: unset;
    }
}

@media (max-width: 575px) {
    [id^="section"] .card-body .card-title,
    [id^="section"] .card-body .card-date {
        min-height: unset !important;
        height: unset !important;
    }
}

@media (min-width: 576px) {}

@media (min-width: 768px) {
    [id^="section"] .card-body .card-title {
        vertical-align: text-top;
        display: -webkit-box;
        -webkit-box-orient: vertical;
        -webkit-line-clamp: 2;
        overflow: hidden;
    }
}

@media (min-width: 992px) {
    #hero {
        text-align: left;
        height: 165px;
    }
    #hero img {
        margin-left: -96px;
    }
}

@media (min-width: 1160px) {}

@media (min-width: 1200px) {}

@media (min-width: 1400px) {}