.technical-advantages-content {
    max-width: 1400px;
    margin: 0 auto;
}

.technical-advantages-content * {
    box-sizing: border-box;
}

.technical-advantages .trade-title {
    font-size: 24px;
    color: #333;
    text-align: center;
    margin: 50px 0;
    position: relative;
}

.technical-advantages {
    height: 600px;
}

.technical-box {
    margin: 0 auto;
    position: relative;
    transition: all .3s ease;
}

.technical-box-list {
    display: flex;
    flex-direction: row;
    justify-content: center;
    align-items: center;
}

.technical-box-item {
    flex: 1;
    text-align: center;
    position: relative;
    height: 600px;
    background: no-repeat center;
    background-size: cover;
    transition: all .3s ease-in-out;
    overflow: hidden;
}

.technical-advantages-content .technical-box-item:before {
    content: "";
    position: absolute;
    width: 100%;
    height: 60%;
    left: 0;
    top: 0;
    background-color: rgba(0, 117, 194, .2);
    transition: all .4s cubic-bezier(.4, 0, .2, 1);
}

.technical-box-item a {
    position: absolute;
    width: 100%;
    height: 60%;
    left: 0;
    top: 0;
    padding: 0 10%;
    overflow: hidden;
    text-decoration: none;
}

.technical-box-item a .item-title {
    font-size: 26px;
    color: #fff;
    padding: 20px 0;
    padding-top: 26%;
    position: relative;
    transform: scale3d(.8, .8, 1);
    transition: transform .35s;
}

.technical-box-item a .item-text {
    position: relative;
    transition: all .4s cubic-bezier(.4, 0, .2, 1);
    opacity: 1;
    margin-top: 10px;
    text-decoration: none;
    color: #fff;
    font-size: 16px;
    margin-bottom: 44px;
    line-height: 2;
    transform: scale3d(.8, .8, 1);
}

.technical-advantages-content .technical-box-item:hover:before {
    background-color: rgba(0, 117, 194, .6);
}

.technical-advantages-content .technical-box-item:hover .item-text,
.technical-advantages-content .technical-box-item:hover .item-title {
    transform: scale3d(1, 1, 1);
}

.technical-advantages-content .technical-box-item:hover .item-title:before {
    opacity: 0;
    margin-bottom: 0;
}

.technical-advantages-content .technical-box-item .item-text {
    text-align: center;
    font-size: 14px;
    color: #fff;
    margin: 0 auto;
    opacity: 0;
}

.technical-advantages-content .technical-box-item:hover .item-text {
    opacity: 1;
}

.technical-advantages-content .technical-box-item .technical-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    position: absolute;
    left: 0;
    z-index: -1;
    transition: all .3s ease-in-out;
    display: block;
    border: none;
}

.technical-advantages-content .technical-box-item:hover .technical-img {
    transform: scale(1.1);
}