.collapse-contentabout {
    width: 100%;
}
.collapse-contentabout .collapse-item {
    margin-bottom: 12px;
}
.collapse-contentabout .collapse-item:last-child {
    margin-bottom: 0;
}
.collapse-contentabout .collapse-item-title {
    background-color: #EEEEEE;
    color: #333333;
    padding: 14px 20px;
    text-align: center;
    cursor: pointer;
    user-select: none;
    font-size: 16px;
    line-height: 1.4;
    transition: background-color 0.2s, color 0.2s;
}
.collapse-contentabout .collapse-item-title:hover {
    background-color: #E0E0E0;
}
.collapse-contentabout .collapse-item-title.active {
    background-color: #002C5F;
    color: #fff;
}
.collapse-contentabout .collapse-item-title.active:hover {
    background-color: #003d7a;
}
.collapse-contentabout .collapse-item-title p {
    margin: 0;
    color: inherit;
}
.collapse-contentabout .collapse-item-content {
    max-height: 0;
    overflow: hidden;
    background-color: #fff;
    color: #333333;
    padding: 0 24px;
    border: 1px solid #e8e8e8;
    border-top: none;
    line-height: 1.6;
    font-size: 14px;
    transition: max-height 0.35s ease, padding 0.35s ease, opacity 0.25s ease;
    opacity: 0;
}
.collapse-contentabout .collapse-item-content.active {
    max-height: 800px;
    padding: 20px 24px 24px;
    opacity: 1;
}
.collapse-contentabout .collapse-item-content p {
    margin: 0 0 12px 0;
}
.collapse-contentabout .collapse-item-content p:last-child {
    margin-bottom: 0;
}
.collapse-contentabout .collapse-item-content strong {
    font-weight: 700;
    margin-right: 4px;
}
/* 展开时与下一项间距加大 */
.collapse-contentabout .collapse-item:has(.collapse-item-content.active) {
    margin-bottom: 24px;
}