.app {
    display: flex;
    flex-direction: column;
    height: 100%;
}
.footer {
    margin-top: auto;
}
.main-qa {
    width: 100%;
    margin-top: 0.98rem;
    height: auto;
    display: flex;
    flex-direction: column;
    margin-bottom: 80px;
}
.qa {
    min-height: 100%;
    padding-top: 20px;
    padding-bottom: 20px;
}
.qa .qa-title {
    text-align: center;
    line-height: 1.5em;
    margin: 0 auto 40px;
    font-size: 20px;
    font-weight: bold;
    white-space: pre-line;
}
.qa .faq-list .faq-item {
    padding: 20px 0;
    border-bottom: 1px solid #E8EAEC;
}
.qa .faq-list .faq-item .item-title {
    margin-bottom: 10px;
    display: flex;
}
.qa .faq-list .faq-item .item-title .title-h2 {
    flex: 1;
    font-size: 16px;
    cursor: pointer;
    margin-right: 20px;
    line-height: 1.5em;
}
.qa .faq-list .faq-item .item-title .title-h2:hover {
    color: #555;
}
.qa .faq-list .faq-item .item-title .icon {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background-color: #E5E5E5;
    cursor: pointer;
    font-family: "SimSun";
    line-height: 25px;
    text-align: center;
    color: #979797;
    transform: rotate(90deg);
    font-size: 18px;
    font-weight: bold;
}
.qa .faq-list .faq-item .faq-content {
    font-size: 14px;
    line-height: 1.5em;
    display: none;
}
.qa .faq-list .is-show .faq-content {
    display: block;
}