.rightint-case-list.main {
    padding: 70px 0;
}

.rightint-case-list .app-list h3 {
    font-size: 40px;
    color: #212121;
    font-weight: 700;
    line-height: 1;
    position: relative;
    z-index: 20;
}

.rightint-case-list .app-list h3::before {
    display: block;
    content: attr(data-tit);
    white-space: nowrap;
    color: #fff;
    position: absolute;
    left: 0;
    top: -38px;
    font-size: 98px;
    line-height: 1;
    z-index: -1;
    text-shadow: rgba(210, 217, 221, 0.75) 1px 0 0, rgba(210, 217, 221, 0.75) 0 1px 0, rgba(210, 217, 221, 0.75) -1px 0 0, rgba(210, 217, 221, 0.75) 0 -1px 0;
}

.rightint-case-list .app-list h3::after {
    display: block;
    content: '';
    width: 80px;
    height: 2px;
    background: var(--color-primary);
    margin: 10px auto 0 0;
}

.rightint-case-list .app-list>p {
    margin: 40px 0 0;
    line-height: 36px;
    font-size: 17px;
    color: #666;
}

.rightint-case-list .app-list ul {
    margin: 37px -20px 0;
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
}

.rightint-case-list .app-list ul li {
    width: 33.3333%;
    padding: 15px 20px;
    position: relative;
}

.rightint-case-list .app-list ul li>a::before {
    content: "";
    display: block;
    position: absolute;
    top: 0;
    left: 0;
    background: rgb(0 0 0 / 22%);
    width: 100%;
    height: 100%;
}

.rightint-case-list .app-list ul li>a {
    position: relative;
    overflow: hidden;
    display: block;
}

.rightint-case-list .app-list ul li img {
    display: block;
    width: 100%;
    aspect-ratio: 1/ 1;
    object-fit: cover;
}

.rightint-case-list .app-list ul li .txt {
    position: absolute;
    left: 0;
    top: 0;
    right: 0;
    bottom: 0;
    width: 100%;
    z-index: 105;
    padding: 0 34px 29px;
    transition: opacity 0.2s, transform 0.35s;
    display: flex;
    justify-content: flex-end;
    -webkit-flex-direction: column;
    flex-direction: column;
}

.rightint-case-list .app-list ul li .txt::after {
    content: "";
    background: var(--color-primary);
    opacity: 0.85;
    height: 0;
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    transition: all 0.3s ease 0s;
}

.rightint-case-list .app-list ul li .txt>* {
    position: relative;
    z-index: 10;
}

.rightint-case-list .app-list ul li .txt h6 {
    font-size: 20px;
    font-weight: 700;
    color: #fff;
    line-height: 1;
    white-space: nowrap;
    overflow: hidden;
    width: 100%;
    text-overflow: ellipsis;
}

.rightint-case-list .app-list ul li .txt p {
    font-size: 15px;
    color: var(--btn-hover);
    line-height: 28px;
    height: 0;
    overflow: hidden;
    transition: all 0.5s ease 0s;
    margin: 15px 0 0;
    display: -webkit-box;
	-webkit-box-orient: vertical;
	-webkit-line-clamp: 4;
	text-overflow: ellipsis;
}

.rightint-case-list .app-list ul li .txt .more {
    display: inline-block;
    font-size: 14px;
    font-weight: 500;
    color: #fff;
    margin: 25px 0 0;
}

.rightint-case-list .app-list ul li .txt .more i {
    color: #fff;
    font-size: 12px;
    border-radius: 50%;
    width: 26px;
    height: 26px;
    border: 1px solid #fff;
    line-height: 24px;
    display: inline-block;
    text-align: center;
    margin-right: 20px;
}

.rightint-case-list .app-list ul li:hover .txt::after {
    height: 100%;
}

.rightint-case-list .app-list ul li:hover .txt h6 {
    color: #fff;
}

.rightint-case-list .app-list ul li:hover .txt p {
    height: 112px;
    color: #fff;
}

.rightint-case-list .app-list ul li:hover .txt .more {
    color: #fff;
}

.rightint-case-list .app-list ul li:hover .more i {
    /*border-color: #fff;*/
    color: #fff;
    border-color: #fff;
}

@media screen and (max-width: 992px) {
    .rightint-case-list .app-list ul li .txt .more {
        display: none;
    }
}

@media screen and (max-width:768px) {
    .rightint-case-list.app-list h1 {
        text-align: center;
    }

    .rightint-case-list .app-list h1::before {
        font-size: 40px;
        left: 0;
        right: 0;
        top: -25px;
    }

    .rightint-case-list .app-list h1::after {
        margin: 15px auto 0;
    }

    .rightint-case-list .app-list ul {
        margin: 20px -10px 0;
    }

    .rightint-case-list .app-list ul li {
        padding: 10px;
    }

    .rightint-case-list .app-list ul li .txt {
        padding: 0 10px 5px;
    }

    .app-list ul li .txt h6 {
        font-size: 17px;
    }

    .rightint-case-list .app-list h3::before {
        font-size: 58px;
    }
}

@media screen and (max-width:480px) {
    .rightint-case-list .app-list ul {
        margin: 14px 0 0;
    }

    .rightint-case-list .app-list ul li {
        padding: 6px 0;
        width: 100%;
    }
}