.section4 {
    padding: 0;

}

.box4 {
    overflow: hidden;
    display: flex;
    flex-wrap: wrap;
}

.box4text {
    width: 50%;
    padding-left: var(--paddingLeft);
    position: relative;
}

.box4text .title {
    margin-top: 200px;
    position: relative;
    z-index: 2;
}

.box4text .title .desc {
    max-width: 600px;
    width: 90%;
}

.box4text .number {
    background-size: 100% 100% !important;
    position: absolute;
    z-index: 1;
    width: 100%;
    height: 100%;
    left: 0;
    top: 0;
}

.box4text .number .item {
    position: absolute;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.box4text .number .item:nth-child(1) {
    bottom: 32%;
    left: 28%;
}

.box4text .number .item:nth-child(2) {
    bottom: 17%;
    left: 31%;
}

.box4text .number .item:nth-child(3) {
    bottom: 24%;
    left: 62%;
}

.box4text .number .item h1 {
    color: var(--color);
    font-size: 26px;
    font-weight: 700;
    line-height: 1;text-transform:uppercase;
}


.box4text .number .item h1 i{font-weight:bold;}



.box4text .number .item sup {
    color: var(--color);
    font-size: 26px;
    font-weight: 700;
    line-height: 1;
}

.box4text .number .item h2 {
    color: #898989;
    font-size: 14px;
    line-height: 1;
    margin: 10px 0 20px;
}

.box4text .number .item span {
    display: block;
    width: 15px;
    height: 15px;
    border-radius: 50%;
    background: var(--color);
    position: relative;
    z-index: 9;
    opacity: .75;
}

@keyframes halo {
    0% {
        opacity: 0;
        transform: scale(0);
    }

    50% {
        opacity: 1;
    }

    100% {
        opacity: 0;
        transform: scale(1);
    }
}

.box4text .number .item span:after {
    content: '';
    position: absolute;
    width: 40px;
    height: 40px;
    left: 50%;
    margin-left: -20px;
    top: 50%;
    margin-top: -20px;
    border-radius: 50%;
    background: var(--color);
    opacity: 0.8;
    z-index: 3;
    opacity: 0;
    transform-origin: center;
    animation: halo 1.5s 0.9s infinite ease-out;
}

/* 右侧图片 */
.box4img {
    width: 50%;
    overflow: hidden;
    position: relative;

}

.box4img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: 10s;
    position: relative;
    z-index: 1;
}

.box4img:hover img {
    transform: scale(1.1);
}

.box4img .text {
    position: absolute;
    z-index: 2;
    width: 100%;
    left: 0;
    bottom: 15px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.box4img .text h1 {
    color: #fff;
    font-size: 48px;
    font-weight: bold;
    line-height: 1;
}

.box4img .text h2 {
    color:#fff;
    font-size: 17px;
    font-weight: 400;
    line-height: 1;
    margin: 15px 0;
}

.box4img .text span {
    color: var(--color);
    font-size: 48px;
    font-weight: 400;
    line-height: 1;
}

@media (max-width: 1600px) {
    .box4text .title {
        margin-top: 100px;
    }

    section .title .desc {
        margin-top: 30px;
        margin-bottom: 30px;
    }
}

@media (max-width: 1440px) {
        .box4text .number .item h2{font-size:12px;}
}

@media (max-width: 1200px) {
    .box4text .title {
        margin-top: 60px;
    }

    .box4 {
        min-height: 600px;
    }

    section .title .desc {
        line-height: 1.5;
    }

    .box4text .number {
        top: 30px;
    }

}

@media (max-width: 992px) {}

@media (max-width: 640px) {
    .box4 {
        min-height: auto;
    }

    .box4text {
        width: 100%;
        padding-bottom: 300px;
    }

    .box4img {
        width: 100%;
    }

    .box4text .number .item:nth-child(1) {
        bottom: 37%;
        left: 23%;
    }

    .box4text .number .item:nth-child(2) {
        bottom: 16%;
        left: 27%;
    }
}