/* 关于我们专题页 */
/* 标题 */
.page_about_tit {
    text-align: center;
}
.page_about_tit h3 {
    display: block;
    font-size: 36px;
    font-weight: bold;
    font-stretch: normal;
    line-height: 1.5;
    letter-spacing: 0px;
    color: #333333;
}

@media (min-width: 1921px) {
    .page_about_tit h3 {
        font-size: 1.8vw;
    }
}
@media (max-width: 1650px) {
    .page_about_tit h3 {
        font-size: 2.2vw;
    }
}
@media (max-width: 1200px) {
    .page_about_tit h3 {
        font-size: 28px;
    }
}
@media (max-width: 990px) {
    .page_about_tit h3 {
        font-size: 26px;
    }
}
@media (max-width: 768px) {
}
@media (max-width: 640px) {
    .page_about_tit h3 {
        font-size: 22px;
    }
}

/* 公司简介 */
.page_about_intro {
    padding: 70px 0 110px; 
}
.page_about_intro {}

.about_intro_text {
    font-size: 16px;
    font-weight: normal;
    font-stretch: normal;
    line-height: 2.1;
    letter-spacing: 0px;
    color: #333333;
    margin-top: 2.84%;
}

.about_intro_uls {
    margin-top: 5.6%;
}
.about_intro_uls ul {
    justify-content: space-between;
}
.about_intro_uls li {
    width: 32%;
}
.about_intro_uls li a {
    display: block;
}
.about_intro_uls li .imgs {
    padding-top: calc(370 / 474 * 100%);
}

@media (min-width: 1921px) {
    .page_about_intro {
        padding: 3.6% 0 5.6%; 
    }
    .about_intro_text {
        font-size: 0.83vw;
    }
}
@media (max-width: 1650px) {
    .page_about_intro {
        padding: 4.2% 0 6%; 
    }
    .about_intro_text {
        font-size: 15px;
        margin-top: 2.5%;
    }
}
@media (max-width: 1200px) {
    .page_about_intro {
        padding: 40px 0 55px;
    }
    .about_intro_text {
        margin-top: 20px;
    }
    .about_intro_uls {
        margin-top: 40px;
    }
}
@media (max-width: 990px) {
    .page_about_intro {
        padding: 36px 0 45px;
    }
    .about_intro_text {
        margin-top: 15px;
    }
    .about_intro_uls {
        margin-top: 30px;
    }
}
@media (max-width: 768px) {
}
@media (max-width: 640px) {
    .page_about_intro {
        padding: 32px 0 36px;
    }
    .about_intro_text {
        font-size: 14px;
        margin-top: 10px;
    }
    .about_intro_uls {
        margin-top: 24px;
    }
    .about_intro_uls ul {
        flex-flow: column;
    }
    .about_intro_uls li {
        width: 100%;
    }
    .about_intro_uls li:nth-child(n+2) {
        margin-top: 10px;
    }
}

/* 企业文化 */
.page_about_culture {
    position: relative;
    overflow: hidden;
    z-index: 20;
}
.page_about_culture .page_about_tit {
    position: absolute;
    top: 11%;
    left: 0;
    width: 100%;
    z-index: 30;
}
.page_about_culture .page_about_tit h3 {
    color: #ffffff;
}
.about_culture_back {
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
}
.about_culture_back .imgs {
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    visibility: hidden;
    opacity: 0;
    transition: 0.5s ease;
}
.about_culture_back .imgs img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.about_culture_back .imgs.acts {
    z-index: 10;
    position: relative;
    visibility: visible;
    opacity: 1;
    transition: 0.3s all;
}

.about_culture_con {
    position: relative;
    z-index: 10;
}
.about_culture_con ul {
    justify-content: space-between;
    align-items: unset;
}
.about_culture_con li {
    border-right: 1px solid rgba(255, 255, 255, 0.1);
    flex: 1;
    position: relative;
}
.about_culture_con li::after {
    content: "";
    display: block;
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
    background: linear-gradient(to top,#000000,rgba(0, 0, 0, 0));
    opacity: 0;
    transition: 0.5s ease;
    z-index: 1;
}
.about_culture_con li.acts::after {
    opacity: 0.3;
    transition: 0.3s all;
}
.about_culture_con li:last-child {
    border-right: none;
}
.about_culture_con li a {
    display: block;
    padding: 91% 17% 38.8%;
    text-align: center;
    transition: 0.5s ease;
    position: relative;
    z-index: 20;
}
.about_culture_con li .imgs {
    display: block;
    width: 100%;
    text-align: center;
    height: 60px;
    opacity: 0;
    transition: 0.5s ease;
}
.about_culture_con li.acts .imgs {
    opacity: 1;
    transform: translateY(-32px);
}
.about_culture_con li .imgs img {
    max-width: 100%;
    display: block;
    margin: 0 auto;
    height: 100%;
    object-fit: contain;
}
.about_culture_con li .text {
    margin-top: 9%;
    transition: 0.5s ease;
}
.about_culture_con li.acts .text {
    transform: translateY(-32px);
}
.about_culture_con li .text h4 {
    font-size: 24px;
	font-weight: bold;
	font-stretch: normal;
	line-height: 1.5;
	letter-spacing: 0px;
	color: #ffffff;
}
.about_culture_con li .text .sums {
    font-size: 15px;
	font-weight: normal;
	font-stretch: normal;
	line-height: 1.6;
	letter-spacing: 0px;
	color: rgba(255, 255, 255, 0.7);
    margin-top: 11%;
    
    overflow : hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 4;
    -webkit-box-orient: vertical;
}


@media (min-width: 1921px) {
    .about_culture_con li .imgs {
        height: 3.1vw;
    }
    .about_culture_con li .text h4 {
        font-size: 1.25vw;
    }
    .about_culture_con li .text .sums {
        font-size: 0.78vw;
    }
}
@media (max-width: 1650px) {
    .about_culture_con li .text h4 {
        font-size: 22px;
    }
    .about_culture_con li .imgs {
        height: 50px;
    }
    .about_culture_con li .text .sums {
        font-size: 14px;
    }
}
@media (max-width: 1400px) {
    .about_culture_con li .text h4 {
        font-size: 20px;
    }
}
@media (max-width: 1200px) {
    .about_culture_con li a {
        padding: 90% 12% 32%;
    }
    .about_culture_con li.acts .imgs,
    .about_culture_con li.acts .text {
        opacity: 1;
        transform: translateY(-24px);
    }
    .about_culture_con li .imgs {
        height: 45px;
    }
    .about_culture_con li .text h4 {
        font-size: 18px;
    }
}
@media (max-width: 990px) {
    .page_about_culture {
        padding: 36px 0 20px;
    }
    .page_about_culture .page_about_tit {
        position: relative;
        top: 0;
    }
    .about_culture_con {
        margin-top: 30px;
        overflow-y: hidden;
        overflow-x: auto;
    }
    .about_culture_con ul {
        padding-bottom: 10px;
    }
    .about_culture_con li {
        width: 40vw;
        flex: none;
    }
    .about_culture_con li a {
        padding: 40px 30px 32px;
    }
    .about_culture_con li.acts .imgs,
    .about_culture_con li.acts .text {
        opacity: 1;
        transform: translateY(-16px);
    }
    .about_culture_con li .imgs {
        opacity: 1;
        height: 42px;
    }
    .about_culture_con li .text {
        margin-top: 12px;
    }
    .about_culture_con li .text .sums {
        margin-top: 10px;
    }
}
@media (max-width: 768px) {
}
@media (max-width: 640px) {
    .about_culture_con {
        margin-top: 24px;
    }
    .about_culture_con li {
        width: 240px;
    }
    .about_culture_con li a {
        padding: 32px 20px 24px;
    }
    .about_culture_con li.acts .imgs,
    .about_culture_con li.acts .text {
        opacity: 1;
        transform: translateY(-10px);
    }
    .about_culture_con li .imgs {
        height: 36px;
    }
    .about_culture_con li .text h4 {
        font-size: 17px;
    }
    .about_culture_con li .text .sums {
        font-size: 13px;
    }
}

/* 制造能力 */
.page_about_manu {
    padding: 90px 0 130px;
    overflow: hidden;
}
.about_manu_text {
    font-size: 16px;
	font-weight: normal;
	font-stretch: normal;
	line-height: 1.8;
	letter-spacing: 0px;
	color: #333333;
    width: 87.8%;
    margin: 1.25em auto 0; 
    display: block;
    text-align: center;
}

.about_manu_uls {
    margin-top: 5%;
    overflow: hidden;
}
.about_manu_uls .swiper {
    margin: 0 -47.5%;
    width: 195%;
}
.about_manu_uls li {
    
}
.about_manu_uls li a {
    display: block;
    opacity: 0.26;
}
.about_manu_uls li .imgs {
    padding-top: calc(510 / 958 * 100%);
}

.about_manu_uls li.swiper-slide-active a {
    opacity: 1;
}


@media (min-width: 1921px) {
    .about_manu_text {
        font-size: 0.83vw;
    }
}
@media (max-width: 1650px) {
    .page_about_manu {
        padding: 5% 0 6%;
    }
    .about_manu_uls {
        margin-top: 4%;
    }
    .about_manu_text {
        font-size: 15px;
    }
}
@media (max-width: 1200px) {
    .about_manu_text {
        width: 100%;
    }
}
@media (max-width: 990px) {
    .page_about_manu {
        padding: 36px 0 45px;
    }
    .about_manu_text {
        margin-top: 15px;
    }
    .about_manu_uls {
        margin-top: 24px;
    }
}
@media (max-width: 768px) {
}
@media (max-width: 640px) {
    .page_about_manu {
        padding: 36px 0 40px;
    }
    .about_manu_text {
        margin-top: 10px;
    }
    .about_manu_uls {
        margin-top: 20px;
        margin-left: -12px;
        margin-right: -12px;
    }
    .about_manu_uls .swiper {
        margin: 0 -75%;
        width: 250%;
    }
}

/* 发展历程 */
.page_about_course {
    background-repeat: no-repeat;
    background-position: center;
    background-size: cover;
    padding: 80px 0 220px;
    overflow: hidden;
}

.about_course_swiper1 {
    position: relative;
    z-index: 20;
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    margin-top: 6%;
}
.about_course_swiper1::before {
    content: "";
    display: block;
    width: 100vw;
    height: 1px;
    background-color: #000000;
    opacity: 0.1;
    position: absolute;
    left: 50%;
    top: 24px;
    transform: translateX(-50%);
    z-index: -1;
}
.about_course_swiper1 .swiper-button-prev,
.about_course_swiper1 .swiper-button-next {
    display: block;
    width: 49px;
	height: 49px;
	background-color: #06428B;
    border-radius: 50%;
    background-repeat: no-repeat;
    background-position: center;
    background-size: contain;
    background-image: url("../imgs/9691dc2e36479abad33153a9761363be535b0931.png");
    position: relative;
    left: 0;
    top: 0;
    margin: 0;
    flex-shrink: 0;
}
.about_course_swiper1 .swiper-button-prev::after,
.about_course_swiper1 .swiper-button-next::after {
    display: none;
}
.about_course_swiper1 .swiper-button-prev {}
.about_course_swiper1 .swiper-button-prev {}

.about_course_swiper1 .swiper {
    margin: 0 30px;
    flex-grow: 1;
}
.about_course_swiper1 li {
    text-align: center;
}
.about_course_swiper1 li a {
    display: block;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-size: inherit;
    color: inherit;
    line-height: inherit;
    padding-top: 13px;
}
.about_course_swiper1 li span {
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto;
    width: 23px;
	height: 23px;
	border: solid 2px transparent;
    border-radius: 50%;
}
.about_course_swiper1 li.swiper-slide-active span {
    border-color: #06428B;
}
.about_course_swiper1 li span::before {
    content: "";
    display: block;
	background-color: #a5a5a5;
    width: calc(11 / 19 * 100%);
    height: calc(11 / 19 * 100%);
    border-radius: 50%;
}
.about_course_swiper1 li.swiper-slide-active span::before {
    background-color: #06428B;
}
.about_course_swiper1 li h4 {
    display: block;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-family: Arial, Helvetica, sans-serif;
	font-size: 30px;
	font-weight: normal;
	font-stretch: normal;
	line-height: 1.5;
	letter-spacing: 0px;
	color: #a5a5a5;
    margin-top: 0.5em;
}
.about_course_swiper1 li.swiper-slide-active h4 {
    font-weight: bold;
    color: #06428B;
}


.about_course_swiper2 {
    margin-top: 6%;
}
.about_course_swiper2 li {}
.about_course_swiper2 li a {
    justify-content: center;
    align-items: center;
    padding: 0 50px;
}
.about_course_swiper2 li .time {
    display: flex;
    align-items: center;
    justify-content: center;
}
.about_course_swiper2 li .time h4 {
    font-family: Arial, Helvetica, sans-serif;
	font-size: 88px;
	font-weight: bold;
	font-stretch: normal;
	line-height: 1;
	letter-spacing: 0px;
	color: #06428B;
}
.about_course_swiper2 li .time p {
    font-size: 30px;
	font-weight: normal;
	font-stretch: normal;
	line-height: 1;
	letter-spacing: 0px;
	color: #06428B;
    margin-left: 1em;
}
.about_course_swiper2 li .sum {
    font-size: 16px;
	font-weight: normal;
	font-stretch: normal;
	line-height: 2;
	letter-spacing: 0px;
	color: #666666;
    margin-left: 7em;
}


@media (min-width: 1921px) {
    .about_course_swiper1 li h4 {
        font-size: 1.56vw;
    }
    .about_course_swiper2 li .sum {
        font-size: 0.83vw;
    }
    .about_course_swiper1 .swiper-button-prev, 
    .about_course_swiper1 .swiper-button-next {
        width: 2.55vw;
        height: 2.55vw;
    }
    .about_course_swiper2 li .time h4 {
        font-size: 4.5vw;
    }
    .about_course_swiper2 li .time p {
        font-size: 1.5vw;
    }
}
@media (max-width: 1650px) {
    .page_about_course {
        padding: 4.8% 0 12%;
    }
    .about_course_swiper1 li h4 {
        font-size: 1.8vw;
    }
    .about_course_swiper2 li .time h4 {
        font-size: 5.3vw;
    }
    .about_course_swiper2 li .time p {
        font-size: 1.8vw;
    }
    .about_course_swiper2 li .sum {
        margin-left: 4.5%;
    }
}
@media (max-width: 1200px) {
    .about_course_swiper1 li h4 {
        font-size: 20px;
    }
    .about_course_swiper2 li .time h4 {
        font-size: 52px;
    }
    .about_course_swiper2 li .time p {
        font-size: 20px;
        margin-left: 0.5em;
    }
    .about_course_swiper2 li .sum {
        font-size: 15px;
        margin-left: 2em;
    }
}
@media (max-width: 990px) {
    .page_about_course {
        padding: 50px 0 80px;
    }
    .about_course_swiper1::before {
        top: 22px;
    }
    .about_course_swiper1 .swiper-button-prev, 
    .about_course_swiper1 .swiper-button-next {
        width: 45px;
        height: 45px;
    }
    .about_course_swiper2 li a {
        flex-flow: column;
        align-items: flex-start;
        justify-content: flex-start;
    }
    .about_course_swiper2 li .time {
        justify-content: flex-start;
    }
    .about_course_swiper2 li .time h4 {
        font-size: 45px;
    }
    .about_course_swiper2 li .sum {
        line-height: 1.8;
        margin-left: 0;
        margin-top: 0.5em;
    }
}
@media (max-width: 768px) {
}
@media (max-width: 640px) {
    .page_about_course {
        padding: 36px 0 42px;
    }
    .about_course_swiper1 {
        margin-top: 15px;
    }
    .about_course_swiper1::before {
        top: 20px;
    }
    .about_course_swiper1 .swiper-button-prev, 
    .about_course_swiper1 .swiper-button-next {
        width: 40px;
        height: 40px;
    }
    .about_course_swiper1 li a {
        padding-top: 11px;
    }
    .about_course_swiper1 li span {
        width: 20px;
        height: 20px;
    }
    .about_course_swiper2 {
        margin-top: 20px;
    }
    .about_course_swiper2 li a {
        padding: 0 20px;
    }
    .about_course_swiper2 li .time h4 {
        font-size: 32px;
    }
    .about_course_swiper2 li .time p {
        font-size: 16px;
    }
    .about_course_swiper2 li .sum {
        font-size: 14px;
    }
}

/* 资质荣誉 */
.page_about_honor {
    background-repeat: no-repeat;
    background-position: center;
    background-size: cover;
    padding: 70px 0 66px;
}

.about_honor_swiper {
    margin-top: 4.2%;
    position: relative;
}
.about_honor_swiper::after {
    content: "";
    display: block;
    width: 108%;
    margin: 0 -4%;
    background-repeat: no-repeat;
    background-position: center;
    background-size: cover;
    padding-top: calc(83 / 1480 * 100%);
    background-image: url("../imgs/dccc386359f765c170fe591546dc550af5fe4f2c.png");
    margin-top: 1.6%;
}

.about_honor_swiper .swiper-button-prev,
.about_honor_swiper .swiper-button-next {
    display: flex;
    width: 36px;
    height: 60px;
    top: 40%;
    margin: 0;
}
.about_honor_swiper .swiper-button-prev::after, 
.about_honor_swiper .swiper-button-next::after {
    width: 26px;
    height: 26px;
    border-width: 4px;
    border-color: transparent transparent #cccccc #cccccc;
    left: 10px;
}
.about_honor_swiper .swiper-button-prev:hover::after, 
.about_honor_swiper .swiper-button-next:hover::after {
    border-color: transparent transparent #06428B #06428B;
}
.about_honor_swiper .swiper-button-prev {
    left: -6%;
}
.about_honor_swiper .swiper-button-next {
    right: -6%;
}

.about_honor_swiper .swiper {}
.about_honor_swiper li {
}
.about_honor_swiper li a {
    display: block;
    transform-origin: center 90%;
    transform: scale(0.71);
}
.about_honor_swiper li.swiper-slide-active a {
    transform: scale(1);
}
.about_honor_swiper li .imgs {
    position: relative;
    padding: 6% 5.625%;
}
.about_honor_swiper li .imgs .fixed_ratio {
    padding-top: calc(410 / 284 * 100%);
    z-index: 10;
}
.about_honor_swiper li .imgs::after {
    content: "";
    display: block;
    width: 100%;
    height: 100%;
    position: absolute;
    left: 0;
    top: 0;
    background-repeat: no-repeat;
    background-position: center;
    background-size: cover;
    background-image: url("../imgs/52bf10bb153abed3ea4efb679096e1ebe7cdeb69.png");
    z-index: 20;
}
.about_honor_swiper li h4 {
    display: block;
    text-align: center;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-size: 16px;
	font-weight: normal;
	font-stretch: normal;
	line-height: 2;
	letter-spacing: 0px;
	color: #666666;
    margin-top: 1em;
    opacity: 0;
    visibility: hidden;
    padding: 0 1em;
}
.about_honor_swiper li.swiper-slide-active h4 {
    opacity: 1;
    visibility: visible;
}

@media (min-width: 1921px) {
    .page_about_honor {
        padding: 3.6vw 0 3.4vw;
    }
    .about_honor_swiper li h4 {
        font-size: 0.83vw;
    }
}
@media (max-width: 1650px) {
    .page_about_honor {
        padding: 4.2% 0 4%;
    }
    .about_honor_swiper {
        padding: 0 30px;
    }
    .about_honor_swiper .swiper-button-prev, 
    .about_honor_swiper .swiper-button-next {
        width: 30px;
    }
    .about_honor_swiper .swiper-button-prev {
        left: 0;
    }
    .about_honor_swiper .swiper-button-next {
        right: 0;
    }
    .about_honor_swiper .swiper-button-prev::after, 
    .about_honor_swiper .swiper-button-next::after {
        width: 22px;
        height: 22px;
        left: 7px;
    }
}
@media (max-width: 1200px) {
    .about_honor_swiper li h4 {
        font-size: 15px;
        margin-top: 0.8em;
    }
}
@media (max-width: 990px) {
}
@media (max-width: 768px) {
}
@media (max-width: 640px) {
    .page_about_honor {
        padding: 36px 0;
    }
    .about_honor_swiper {
        margin-top: 24px;
    }
    .about_honor_swiper .swiper {
        margin: 0 -50%;
        width: 200%;
    }
    .about_honor_swiper li h4 {
        font-size: 14px;
        margin-top: 0.5em;
    }
}