.cl-main {
    color: var(--cl-main);
}
.m-bottom-20 {
    margin-bottom: 20px;
}
.fw-800 {
    font-weight: 800;
}
.fz-55 {
    font-size: 55px;
}
p {
    margin-top: 0;
    margin-bottom: 1rem;
}
p {
    margin-bottom: 1.5em;
}

img.img-background {
    position: absolute;
    width: 100%;
    height: 100%;
    left: 0;
    top: 0;
    object-fit: cover;
    z-index: 1;
    pointer-events: none;
    transition: var(--transition);
}

.about3 .container {
    position: relative;
    z-index: 3;
}
.about3_items {
    margin-top: 100px;
}

.about3_items .wrap-sliders .slick-list {
    padding-bottom: 25px !important;
}

.about3_items .content {
    color: #003333;
}

.about3_items .item>.inner {
    position: relative;
    flex-direction: column;
}

.about3_items .slick-slide:nth-child(even) .item>.inner {
    flex-direction: column-reverse;
}

.about3_items .slick-slide:nth-child(even) .wrap-content,
.about3_items .slick-slide:nth-child(odd) .img {
    margin-bottom: 60px;
}

.about3_items .wrap-content {
    padding: 0 15px;
    height: 178px;
}

.about3_items .wrap-content .year {
    line-height: 40px;
}

.about3_items .wrap-sliders::before {
    content: '';
    display: block;
    position: absolute;
    left: 0;
    top: 208px;
    width: 100%;
    height: 2px;
    background: url('../img-page-child/about_line_slider.png') center no-repeat;
    background-size: 100%;
}

.about3_items .img {
    box-shadow: 16px 9px 20px rgb(94 94 94 / 25%);
    border-radius: 20px;
}

.about3_items img {
    width: 245px;
    height: 178px;
    border-radius: 20px;
}

.about3_items .item>.inner::before {
    content: '';
    display: block;
    position: absolute;
    left: 50%;
    top: 208px;
    transform: translate(-50%, -50%);
    width: 26px;
    height: 26px;
    border: 1px solid #0d4f8c;
    background-color: #e0e6ee;
    border-radius: 50%;
    transition: var(--transition);
}

.about3_items .slick-current .item>.inner::before {
    width: 40px;
    height: 40px;
    border: 1px solid #0d4f8c;
}

.about3_items .item>.inner::after {
    content: '';
    display: block;
    position: absolute;
    left: 50%;
    top: 208px;
    transform: translate(-50%, -50%);
    width: 0;
    height: 0;
    background-color: #0d4f8c;
    border-radius: 50%;
    transition: var(--transition);
}

.about3_items .slick-current .item>.inner::after {
    width: 20px;
    height: 20px;
}

.slick-arrow.arrow {
    position: absolute;
    top: 50%;
    z-index: 50;
    transform: translateY(-50%);
    width: 50px;
    height: 50px;
    opacity: 0.2;
    color: #ffffff;
    font-size: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    cursor: pointer;
}

.slick-arrow.arrow:hover {
    opacity: 1;
    background-color: var(--cl-main);
}

.slick-arrow.arrow.prev {
    left: 30px;
}

.slick-arrow.arrow.next {
    right: 30px;
}

.arrow_style_ab span {
    width: 24px;
    height: 33px;
    background: url('../img-page-child/arrow_style_ab.png') center no-repeat;
    background-size: 100%;
}

.arrow_style_ab.slick-arrow.arrow {
    opacity: 1;
}
.slick-disabled {
    opacity: 0 !important;
}

.arrow_style_ab.slick-arrow.arrow:hover span {
    filter: brightness(0) invert(1);
}

.arrow_style_ab.slick-arrow.arrow.prev {
    left: -150px;
}

.arrow_style_ab.slick-arrow.arrow.prev span {
    transform: scaleX(-1);
}

.arrow_style_ab.slick-arrow.arrow.next {
    right: -150px;
}
ul.slick-dots {
    position: absolute;
    z-index: 40;
    bottom: 50px;
    width: 100%;
    left: 0;
    display: flex;
    justify-content: center;
    margin: 0;
    list-style: none;
}

ul.slick-dots button {
    display: none;
}

ul.slick-dots li {
    cursor: pointer;
    width: 15px;
    height: 15px;
    background-color: var(--cl-white);
    border-radius: 50%;
    margin: 0 5px;
    transition: var(--transition);
    opacity: 0.7;
    box-shadow: 0 0 4px rgb(255 255 255);
}

ul.slick-dots li:hover,
ul.slick-dots li.slick-active {
    background-color: var(--cl-main);
    opacity: 1;
}

@media only screen and (max-width: 1440px) {
    .fz-55 {
        font-size: 45px;
    }
    .about3_items {
        margin-top: 20px;
    }

    .about3 .group_content {
        margin-top: 0;
    }

    .about3_items img {
        width: 200px;
        height: 145px;
    }

    .about3_items .wrap-content {
        height: 145px;
    }

    .about3_items .slick-slide:nth-child(even) .wrap-content,
    .about3_items .slick-slide:nth-child(odd) .img {
        margin-bottom: 20px;
    }

    .about3_items .slick-slide:nth-child(odd) .wrap-content,
    .about3_items .slick-slide:nth-child(even) .img {
        margin-top: 20px;
    }

    .about3_items .item>.inner::after,
    .about3_items .item>.inner::before,
    .about3_items .wrap-sliders::before {
        top: 163px;
    }

    .about3_items .item>.inner::before {
        width: 20px;
        height: 20px;
    }

    .about3_items .slick-current .item>.inner::after {
        width: 15px;
        height: 15px;
    }

    .about3_items .slick-current .item>.inner::before {
        width: 26px;
        height: 26px;
    }

    .about3_items .wrap-content .year {
        font-size: 40px;
        line-height: 30px;
    }
    .arrow_style_ab.slick-arrow.arrow.prev {
        left: -40px;
    }

    .arrow_style_ab.slick-arrow.arrow.next {
        right: -40px;
    }

    .arrow_style_ab span {
        width: 17px;
        height: 26px;
    }
}
@media only screen and (max-width: 1199px) {
    .arrow_style_ab.slick-arrow.arrow.prev {
        left: -65px;
    }

    .arrow_style_ab.slick-arrow.arrow.next {
        right: -65px;
    }
}
@media only screen and (max-height: 800px) and (min-width: 1500px) {
    .about3_items {
        margin-top: 40px;
    }

    .about3 .group_content {
        /* margin-top: 0; */
    }

    .about3_items .wrap-sliders {
        max-width: 80%;
        margin: 0 auto;
    }

    .about3_items img {
        width: 200px;
        height: 145px;
    }

    .about3_items .wrap-content {
        height: 145px;
    }

    .about3_items .slick-slide:nth-child(even) .wrap-content,
    .about3_items .slick-slide:nth-child(odd) .img {
        margin-bottom: 40px;
    }

    .about3_items .item>.inner::after,
    .about3_items .item>.inner::before,
    .about3_items .wrap-sliders::before {
        top: 163px;
    }

    .about3_items .item>.inner::before {
        width: 20px;
        height: 20px;
    }

    .about3_items .slick-current .item>.inner::after {
        width: 15px;
        height: 15px;
    }

    .about3_items .slick-current .item>.inner::before {
        width: 26px;
        height: 26px;
    }

    .about3_items .wrap-content .year {
        font-size: 40px;
        line-height: 30px;
    }

    .arrow_style_ab.slick-arrow.arrow.prev {
        left: -65px;
    }

    .arrow_style_ab.slick-arrow.arrow.next {
        right: -65px;
    }

    .about3_items .content {
        font-size: 13px;
    }
}
@media only screen and (min-width: 2400px) {
    .fz-55,
    .fz-50,
    .group_content h2.title,
    .banner_sliders .content {
        font-size: 105px;
    }
    .about3_items .img img {
        width: 415px;
        height: 300px;
        object-fit: cover;
    }

    .about3_items .slick-slide:nth-child(even) .wrap-content,
    .about3_items .slick-slide:nth-child(odd) .img {
        margin-bottom: 280px;
    }

    .about3_items .slick-slide:nth-child(even) .wrap-content,
    .about3_items .slick-slide:nth-child(odd) .img {
        margin-bottom: 100px;
    }

    .about3_items .wrap-content {
        padding: 0 15px;
        height: 378px;
    }

    .about3_items .wrap-content .year {
        line-height: 120px;
    }

    .about3_items .item>.inner::after,
    .about3_items .item>.inner::before,
    .about3_items .wrap-sliders::before {
        top: 408px;
    }

    .about3_items .slick-current .item>.inner::after {
        width: 40px;
        height: 40px;
    }

    .about3_items .slick-current .item>.inner::before {
        width: 60px;
        height: 60px;
    }

    .about3_items .item>.inner::before {
        width: 46px;
        height: 46px;
    }
    ul.slick-dots li {
        width: 35px;
        height: 35px;
        margin: 0 15px;
    }
}
@media only screen and (min-width: 2400px) and (max-width: 3029px) {
    .fz-55,
    .fz-50,
    .group_content h2.title,
    .banner_sliders .content {
        font-size: 75px;
    }
}
@media only screen and (max-width: 767px) {
    .fz-55 {
        font-size: 28px;
    }
    .arrow_style_ab.slick-arrow.arrow.prev {
        left: -15px;
    }

    .arrow_style_ab.slick-arrow.arrow.next {
        right: -15px;
    }
    ul.slick-dots li {
        width: 10px;
        height: 10px;
    }
    ul.slick-dots {
        bottom: 20px;
    }
}
@media only screen and (max-width: 575px) {
    .about3 .slide-nav-mobile {
        display: flex;
        align-items: center;
        gap: 0.521rem;
    }
    .about3 .arrow {
        position: unset;
        transform: unset;
    }
    .about3 ul.slick-dots {
        position: static;
        margin-top: 0;
        padding: 0;
    }
    .about3 .slick-arrow.arrow {
        height: 100%;
    }
}