.trade-content * {
    box-sizing: border-box;
}

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

.trade-title:before {
    content: "";
    position: absolute;
    width: 0;
    height: 0;
    bottom: -19px;
    left: 50%;
    transform: translateX(-50%);
    border: 6px solid;
    border-color: #20b09f transparent transparent;
}

.trade-title:after {
    content: "";
    position: absolute;
    width: 52px;
    height: 3px;
    background-color: #20b09f;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%)
}

.trade-black {
    height: 600px;
}

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

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

.trade-box-item {
    margin-right: 20px;
    flex: 1;
    text-align: center;
    position: relative;
    height: 400px;
    background: no-repeat center;
    background-size: cover;
    overflow: hidden;
}

.trade-content .trade-box-item:before {
    content: "";
    position: absolute;
    width: 100%;
    height: 100%;
    left: 0;
    top: 0;
    background-color: rgba(19, 172, 239, .4);
    transition: all .4s cubic-bezier(.4, 0, .2, 1);
    z-index: 0;
}

.trade-box-item a {
    position: absolute;
    width: 100%;
    height: 100%;
    left: 0;
    top: 0;
    padding: 0 10%;
}

.trade-box-item a:hover {
    text-decoration: none;
}

.trade-box-item .item-logo {
    margin: 0 auto;
    display: block;
}

.trade-content .trade-box-item .item-logo {
    position: relative;
    margin-top: 17%;
    transition: all .4s cubic-bezier(.4, 0, .2, 1);
}

.trade-content .trade-box-item .item-logo img {
    display: block;
    margin: 0 auto;
    max-width: 100%;
}

.trade-content .trade-box-item .item-title {
    font-size: 24px;
    font-weight: 700;
    color: #fff;
    padding: 12px 0;
    position: relative;
}

.trade-content .trade-box-item .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;
    overflow: hidden;
    text-overflow: ellipsis;
    -webkit-line-clamp: 6;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    height: 95px;
}

.trade-content .trade-img {
    max-width: 100%;
    width: 100%;
    height: 100%;
    display: block;
    border: none;
    position: absolute;
    left: 0;
    z-index: -1;
    object-fit: cover;
}

.trade-content .trade-box-item:hover .item-text {
    display: block;
    opacity: 1;
    margin-top: 0;
}

.trade-content .trade-box-item:hover:before {
    background-color: rgba(0, 50, 113, .8);
}

.trade-content .trade-box-item:hover .item-logo {
    margin-top: 80px;
}

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

.trade-content .trade-box-item .item-go {
    width: 138px;
    height: 38px;
    line-height: 38px;
    border: 1px solid #fff;
    text-align: center;
    font-size: 14px;
    color: #fff;
    margin: 0 auto;
    opacity: 0;
}

.trade-content .trade-box-item:hover .item-go {
    opacity: 1;
}