* {
    box-sizing: border-box;
    line-height: 1
}

.introContainer {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: none;
    justify-content: center;
    align-items: start;
    z-index: 100
}

.introContainer .introBg {
    width: 100%;
    max-width: 640px;
    height: 100%;
    background: rgba(0, 0, 0, .5);
    position: relative;
    margin: 0 auto;
}

.introContainer .introBg .introModal {
    width: 100%;
    background: #fff;
    border-top-left-radius: 5px;
    border-top-right-radius: 5px;
    padding: 5px;
    position: absolute;
    bottom: 0;
    left: 0;
    animation: slideIn .3s ease-in-out
}

.introContainer .introBg .introModal .closeCon {
    width: 100%;
    font-size: 26px;
    color: #575555;
    text-align: right;
    padding: 0 10px
}

.introContainer .introBg .introModal .introTitle {
    width: 100%;
    text-align: center;
    font-weight: 500;
    margin: 4px 0 15px 0;
    font-size: 24px
}

.introContainer .introBg .introModal .introContent {
    width: 100%
}

.introContainer .introBg .introModal .introContent .introRow {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    font-size: 16px;
    padding: 18px 8px
}

.introContainer .introBg .introModal .introContent .introRow:not(:last-child) {
    border-bottom: 1px solid #e5e5e5
}

.introContainer .introBg .introModal .introContent .introRow .introLabel {
    color: #575555
}

.introContainer .introBg .introModal .introContent .introRow .introCont {
    flex: 1;
    display: flex;
    justify-content: flex-end
}

.introContainer .introBg .introModal .introContent .introRow .introCont.justStart {
    margin-left: 20px;
    justify-content: flex-start
}

.introContainer .introBg .introModal .introContent .introRow .introCont .introArrow {
    width: 20px;
    transition: all linear .2s
}

.introContainer .introBg .introModal .introContent .introRow .introArticle {
    width: 100%;
    transition: max-height .5s ease-in-out;
    max-height: 0vh;
    overflow: hidden
}

.introContainer .introBg .introModal .introContent .introRow .introArticle div {
    padding: 10px 0px;
    line-height: 1.5;
    overflow-wrap: break-word;
    word-break: break-all;
    text-indent: 28px;
    font-size: 14px;
    color: #000
}

.introContainer .introBg .introModal .introContent .introRow.introActive .introArrow {
    transform: rotate(90deg)
}

.introContainer .introBg .introModal .introContent .introRow.introActive .introArticle {
    max-height: 70vh;
    overflow-y: scroll
}

@keyframes slideIn {
    0% {
        transform: translateY(100%)
    }

    100% {
        transform: translateY(0)
    }
}