.IndexTitle {
    font-size: 28px;
    color: #555;
    width: 96%;
    height: 64px;
    text-align: center;
    line-height: 64px;
    margin: 0 auto;
    position: relative;
}

.IndexTitle:after {
    box-sizing: border-box;
    content: "";
    width: 80px;
    height: 4px;
    position: absolute;
    left: 50%;
    margin-left: -40px;
    bottom: -4px;
    background: #27924E;
}

@media (max-width: 1280px) {
    .IndexTitCom {
        width: 96%;
    }
}

.IndexBrief {
    margin-top: 44px;
    background: url(../img/ser-bg.jpg) no-repeat right 42px top 0;
}

.IndexTitCom {
    max-width: 1280px;
    height: auto;
    padding-top: 24px;
    padding-bottom: 34px;
    margin: 0 auto;
    line-height: 28px;
    font-size: 14px;
    color: #666;
}
/* region ↓ 六个业务部分 ↓ */
.IndexSerBody .col {
    height: 500px;
    text-align: center;
}

.IndexSerBody .bg-img {
    width: 100%;
    height: 100%;
    /*position: relative;*/
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
    border-bottom: 3px solid rgba(1, 99, 51, 1);
}

/* 绿条 */
.IndexSerBody .bjs {
    width: 100%;
    height: 3px;
    background: rgba(1,99,51,1);
    position: relative;
    bottom: 0;
    left: 0;
    /*z-index: 100;*/
}

.IndexSerBody .title {
    z-index: 200;
    position: relative;
    top: 60%;
    font-size: 20px;
    font-weight: bold;
    line-height: 45px;
    color: white;
    transition: all 0.5s ease 0s;
}
.IndexSerBody .col:hover .title {
    transition: transform 0.5s ease;
    transform: translateY(-160%);
}

.IndexSerBody .col img {
    transition: all 0.5s ease 0s;
}
.IndexSerBody .col:hover img {
    transition: transform 0.5s;
    transform: scaleX(1.1) scaleY(1.1);
}

.IndexSerBody .col .detail-block {
    display: none;
    overflow: visible;
    position: relative;
    clip-path: polygon(0 -1000%, 100% -1000%, 100% 1100%, 0 1100%);
    /*z-index: 202;*/
    width: 100%;
    height: 100%;
    background-color: #016334;
    transition: all 0.5s ease 0.5s;
}

.IndexSerBody .col:hover .detail-block {
    display: block;
    animation: grow 0.5s ease forwards;
}

.IndexSerBody .col:not(:hover) .detail-block {
    display: block;
    animation: shrink 0.5s ease forwards;
}

/* 六个业务栏的描述栏目鼠标hover时的生长动画 */
@keyframes grow {
    from {
        height: 0;
        top: 0;
    }
    to {
        height: 100%;
        top: -100%;
    }
}

@keyframes shrink {
    from {
        height: 100%;
        top: -100%;
    }
    to {
        height: 0;
        top: 0;
    }
}

.IndexSerBody .col .detail-body {
    /*display: none;*/
    width: 100%;
    height: 100%;
    /*z-index: 201;*/
    color: white;
    position: relative;
}
.IndexSerBody .col:hover .detail-body {
    /*display: block;*/
    /*transition-delay: 0.5s;
    transition: transform 0.5s ease;
    transform: translateY(-100%);*/
    /*animation: grow 0.5s ease forwards;*/
}

.IndexSerBody .detail-body .sub-title {
    font-size: 18px;
    line-height: 38px;
    margin-bottom: 18px;
}

.IndexSerBody .detail-body .description {
    text-align: left;
    padding: 0 4%;
    font-size: 14px;
    max-height: 30%;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 6;
    -webkit-box-orient: vertical;
}

.IndexSerBody .arrow-btn {
    display: block;
    width: 108px;
    height: 36px;
    line-height: 36px;
    letter-spacing: -2px;
    text-align: center;
    text-decoration: none;
    color: white;
    border: 1px solid white;
    margin: 40px auto;
}

.IndexSerBody .arrow-btn:hover {
    animation: arrow-hover 0.5s forwards;
}

.IndexSerBody .arrow-btn:not(:hover) {
    animation: arrow-un-hover 0.5s;
}

@keyframes arrow-hover {
    from {
        background: transparent;
        border-color: white;
    }
    to {
        background: #c3d62e;
        border-color: #c3d62e;
    }
}

@keyframes arrow-un-hover {
    from {
        background: #c3d62e;
        border-color: #c3d62e;
    }
    to {
        background: transparent;
        border-color: white;
    }
}
/* endregion ↑六个业务部分↑ */

.video .col:hover .btn {
    background-color: #016334;
    color: white;
}

.video .col:hover .card-text {
    color: #016334;
}

.video .col img {
    transition: all 0.5s ease;
}
.video .col:hover img {
    transition: transform 0.5s;
    transform: scaleX(1.1) scaleY(1.1);
}

.arrow-btn {
    display: block;
    width: 150px;
    height: 40px;
    line-height: 40px;
    letter-spacing: -2px;
    text-align: center;
    text-decoration: none;
    color: #333;
    border: 1px solid #333;
    margin: 40px auto;
}