.video-nav {
    width: 100%;
    height: 60px;
    line-height: 60px;
    background-color: #f5f5f5;
}
.video-nav ul li {
    float: left;
    text-align: center;
    font-size: 16px;
    width: 25%;
    position: relative;
}
.video-nav ul li a {
    color: #666;
}
.video-nav ul li.active,
.video-nav ul li:hover {
    background-color: #fff;
}
.video-nav ul li.active a,
.video-nav ul li:hover a {
    color: var(--text-red);
}
.video-nav ul li.active:after,
.video-nav ul li:hover:after {
    content: '';
    width: 100%;
    height: 2px;
    background-color: var(--text-red);
    position: absolute;
    bottom: 0;
    left: 0;
}
.enterprise-list {
    margin: 40px auto;
}
.enterprise-list ul li {
    width: 343px;
    float: left;
    display: block;
    margin-left: 40px;
    margin-bottom: 40px;
    border-radius: 5px;
}
.video-enterprise-img:hover img{
   transform: scale(1.1);
}
.video-enterprise-img {
    border-radius: 5px 5px 0 0;
    position: relative;
    overflow: hidden; 
}
.video-enterprise-img img {
    vertical-align: bottom;
    border-radius: 10px 10px 0 0;
    transition: all 0.3s;
}
.video-enterprise-tit {
    line-height: 55px;
    border-radius: 0 0 10px 10px;
    font-size: 16px;
    text-align: center;
    height: 55px;
    overflow: hidden;
    text-overflow: ellipsis;
    box-shadow: 2px 5px 6px #ebebeb;
    word-spacing: normal;
}
.video-enterprise-tit a {
    color: #333;
}
.enterprise-list ul li:hover {
    /* box-shadow: 2px 5px 6px #ebebeb; */
}
.video-enterprise-img a::before {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    border-radius: 10px 10px 0 0;
    /* background-color: #07183f; */
    background-color: rgba(13, 72, 168, 0.32);
    z-index: 5;
    /* opacity: 0.8; */
}
.video-enterprise-img a::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    background: url('../img/css_sprites.png') no-repeat -15px -187px;
    width: 54px;
    height: 54px;
    transform: translate(-50%, -50%);
    z-index: 10;
}
.enterprise-list ul li:hover .video-enterprise-tit {
    background-color: var(--text-write);
}
.enterprise-list ul li:hover .video-enterprise-tit a {
    color: var(--text-red);
}
.enterprise .title-l {
    color: var(--text-black);
    font-size: 22px;
    font-weight: 400;
}
.enterprise .title-l:before {
    background-color: var(--text-red);
}
i.qy0 {
    width: 26px;
    height: 22px;
    display: inline-block;
    vertical-align: middle;
    background-position: -355px -290px;
}
i.qy1 {
    width: 22px;
    height: 22px;
    display: inline-block;
    vertical-align: middle;
    background-position: -378px -332px;
}
i.qy2 {
    width: 20px;
    height: 20px;
    display: inline-block;
    vertical-align: middle;
    background-position: -477px -10px;
}
i.qy3 {
    width: 20px;
    height: 22px;
    display: inline-block;
    vertical-align: middle;
    background-position: -99px -406px;
}
.video-nav ul li.active i.qy0,
.video-nav ul li:hover i.qy0 {
    background-position: -333px -332px;
}
.video-nav ul li.active i.qy1,
.video-nav ul li:hover i.qy1 {
    background-position: -57px -406px;
}
.video-nav ul li.active i.qy2,
.video-nav ul li:hover i.qy2 {
    background-position: -477px -50px;
}
.video-nav ul li.active i.qy3,
.video-nav ul li:hover i.qy3 {
    background-position: -139px -406px;
}
a.zx-dj {
    display: block;
    margin: 0 auto;
    width: 140px;
    height: 45px;
    border: 1px solid #ccc;
    border-radius: 25px;
    color: var(--text-red);
    text-align: center;
    line-height: 45px;
}