* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html,
body {
    position: relative;
    height: 100%;
    font-size: 18px;
}

body {
    background: rgb(251, 247, 243);
    /* background: #000; */
    font-family: Source Han Sans, sans-serif;
    margin: 0;
    padding: 0;
    color: #333;
    font-size: 1rem;
}

/* 覆盖a标签的各种状态样式 */
a:link,
a:visited,
a:hover,
a:active {
    text-decoration: none;
    /* 在所有状态下都去掉下划线 */
    color: inherit;
    /* 或者设置为你需要的颜色 */
}

.body_box {
    width: 100%;
    height: 100%;
    overflow: hidden;
    position: relative;
}

.header {
    position: absolute;
    top: 0;
    width: 100%;
    height: 6rem;
    z-index: 10000;
    padding: 0 10rem;
    display: flex;
    justify-content: space-between;
    color: #fff;
    background-color: rgba(255, 255, 255, 0);
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

.header_logo_box {
    width: 12rem;
}

.header_logo_box img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.header_language {
    display: flex;
    align-items: center;
    position: relative;
}

.header_language_logo {
    width: 1.5rem;
    height: 1.5rem;
}

.header_language_logo img {
    width: 100%;
    height: 100%;
}

.header_language_text {
    display: flex;
    align-items: center;
}

.header_language_text span {
    margin: 0 0.5rem;
}

.header_language_arrow {
    width: 1rem;
    height: 1rem;
}

.header_language_arrow img {
    width: 100%;
    height: 100%;
}

.header_language_dropdown {
    position: absolute;
    left: 0;
    top: 4rem;
    background-color: #fff;
    color: #333;
    border-radius: 5px;
    box-shadow: 0 0 6px rgba(115, 115, 115, .2);
    overflow: hidden;
    max-height: 0;
    transition: max-height 0.5s;
}

.header_language:hover .header_language_dropdown {
    max-height: 1000px;
}

.header_language_dropdown_item {
    margin: 1rem;
}

.header_fixed {
    display: none;
    align-items: center;
}

.header_fixed_pic {
    width: 1.5rem;
    height: 1.5rem;
    cursor: pointer;
}

.header_fixed_pic img {
    width: 100%;
    height: 100%;
}

.header_navigation_box {
    display: flex;
    width: 50%;
}

.header_navigation_item {
    /* min-width: 1rem; */
    position: relative;
    overflow: hidden;
    display: flex;
    width: calc(100% / 7);
}

.fixed_link {
    display: flex;
    width: 100%;
    height: 100%;
    align-items: center;
    position: absolute;
    white-space: nowrap;
    justify-content: center;
    transition: top 0.5s ease;
}

.fixed_top.fixed_link {
    top: -6rem;
    background-color: #f0f0f0;
    color: #333;
}

.fixed_center {
    top: 0;
}

.product_select_box {
    width: 100vw;
    max-height: 0;
    /* height: 0; */
    overflow: hidden;
    position: fixed;
    top: 6rem;
    left: 0;
    z-index: 1;
    transition: max-height 1s;
}

.product_select_div {
    padding: 2rem 10rem;
    display: flex;
    align-items: center;
    opacity: 0;
    transition: opacity 1s;
    background-color: #fff;
}

.header_navigation_product:hover .product_select_box {
    max-height: 500px;
}

.header_navigation_product:hover .product_select_div {
    opacity: 1;
}

.product_select_left {
    width: 55%;
    font-size: 0.9rem;
    color: #333;
}

.product_select_box_right {
    width: 20rem;
    height: 10rem;
    overflow: hidden;
    border-radius: 5px;
    margin-left: 10%;
}

.product_select_box_right img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.product_select_box_list {
    display: flex;
    flex-flow: wrap;
}

.product_select_left_title {
    font-size: 1.1rem;
    font-weight: bold;
    margin-bottom: 1rem;
}

.product_select_left_describe {
    margin-bottom: 1rem;
}

.product_select_item {
    min-width: 40%;
    padding: 0.8rem 0;
    border-bottom: 1px solid #e4e4e4;
    margin-right: 5%;
    position: relative;
}

.product_select_item a {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.product_select_item a::after {
    display: block;
    content: "";
    width: 15px;
    height: 15px;
    background: url(/v2/d/images/diagonal.png) no-repeat;
    background-size: contain;
    background-position: center;
    transition: margin-right 0.5s ease;
    margin-right: 5%;
}

.product_select_item:hover a::after {
    background: url(/v2/d/images/arrow.png) no-repeat;
    background-size: contain;
    background-position: center;
    margin-right: 10%;
}

.product_select_item::after {
    content: '';
    width: 0%;
    height: 1px;
    background: #999;
    position: absolute;
    bottom: -1px;
    left: 0;
    transition: width 1s;
}

.product_select_item:hover::after {
    width: 100%;
}

.header_navigation_item:hover .fixed_top {
    top: 0;
}

.header_navigation_item:hover .fixed_center {
    top: 6rem;
}

.fixed_header_box {
    left: 100vw;
    width: 100vw;
    height: 100vh;
    z-index: 10000;
    position: absolute;
    background-color: rgba(0, 0, 0, 0.5);
}

.fixed_header_select_box {
    width: 80%;
    left: 100%;
    height: 100%;
    position: absolute;
    transition: left 1s;
    background-color: #fff;
    border-top-left-radius: 10px;
    border-bottom-left-radius: 10px;
}

.fixed_header_close {
    width: 100%;
    height: 6rem;
    display: flex;
    cursor: pointer;
    align-items: center;
    justify-content: end;
    padding-right: 1rem;
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

.fixed_header_close img {
    width: 2rem;
    height: 2rem;
}

.header_select_box {
    padding: 2rem 10%;
    font-size: 1.2rem;
}

.header_select_item {
    padding: 1.2rem 5% 1.2rem 0;
    border-bottom: 1px solid #e1e1e1;
}

.header_select_item_content {
    display: flex;
    position: relative;
    align-items: center;
    justify-content: space-between;
}

.header_select_item_icon {
    width: 1rem;
    height: 1rem;
    cursor: pointer;
    transition: all 1s;
    transform: rotate(0deg);
}

.header_select_item_icon.rotated {
    transform: rotate(90deg);
}

.header_select_item_icon img {
    width: 100%;
    height: 100%;
}

.header_select_item_list {
    max-height: 0;
    overflow: hidden;
    transition: all 1s;
}

.header_select_item_list.rotated {
    max-height: 1000px;
}

.header_select_item_list_box {
    padding: 1rem;
}

.list_li {
    padding: 0.5rem 0;
}



.swiper-container {
    width: 100%;
    height: 100%;
}

.swiper-slide {
    /* padding-top: 6rem; */
}

.swiper-container-vertical>.swiper-pagination-bullets .swiper-pagination-bullet {
    margin-bottom: 5vh;
    position: relative;
    height: auto;
    width: auto;
    opacity: 1;
}

.swiper-container-vertical>.swiper-pagination-bullets .swiper-pagination-bullet-active {
    margin-bottom: 9vh;
    margin-top: 6vh;
    /* opacity: 1; */
}

.swiper-pagination-bullet .swiper-pagination-point {
    border: 0;
    z-index: 1;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: #fff;
}

.swiper-container-vertical>.swiper-pagination-bullets {
    right: 20px;
}

@keyframes rotate {
    0% {
        transform: rotate(0deg);
    }

    100% {
        transform: rotate(360deg);
    }
}

.swiper-pagination-bullet::before {
    content: '';
    display: block;
    z-index: 999;
    position: absolute;
    width: 28px;
    height: 28px;
    left: -10px;
    top: -10px;
    background: conic-gradient(transparent 0deg,
            transparent 90deg,
            transparent 180deg);
    animation: rotate 1.5s linear infinite;
    border: 1px dashed transparent;
    border-radius: 50%;
    transition: all 1s;
}

.swiper-pagination-bullet-active::before {
    border: 1px dashed #fff;
}

.swiper-pagination-bullet::after {
    content: '';
    display: block;
    position: absolute;
    top: calc(1vh + 14px);
    left: 4px;
    width: 1px;
    height: 2vh;
    border-left: 1px solid #fff;
    z-index: 2;
    transition: height 0.5s;
}

.swiper-pagination-bullet-active::after {
    height: 6vh;
}

.swiper-pagination-bullet-active {
    font-size: 1.2rem;
    font-weight: bold;
    background: none;
}

.swiper-pagination-bullet:last-child::after {
    content: none;
}

.c_888888 {
    color: #888888;
}

.c_ca2e2f {
    color: #ca2e2f;
}

.video {
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
    object-fit: cover;
}

.video_text {
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    background-color: rgba(0, 0, 0, 0.2);
    color: #fff;
}

.video_text p,
.video_text h1 {
    max-width: 80%;
    text-align: center;
}

.video_text h1 {
    font-size: 6rem;
    margin-bottom: 3rem;
}

.video_text p {
    font-size: 2rem;
}

.swiper_slide_box {
    width: 100%;
    height: 100%;
    padding: 8rem 10rem 2rem;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    justify-content: center;
    background-color: rgba(0, 0, 0, 0.3);
}

.swiper_slide_title_center {
    font-size: 2.5rem;
    text-align: center;
    color: #fff;
}

.swiper_slide_title_left {
    font-size: 2.5rem;
    text-align: left;
}


.swiper_slide_describe {
    font-size: 1rem;
    margin: 2rem auto;
    width: 80%;
    text-align: center;
    color: #fff;
}

/* 产品中心 */
.product_center {
    background: url(/v2/d/images/equipment_display2.jpg) no-repeat;
    background-size: cover;
    background-position: center;
}

.product_center_list {
    display: flex;
}

.product_center_item {
    width: 43%;
    margin: 1%;
}

.product_center_box {
    margin-top: 4rem;
    height: 60vh;
    display: none;
}

.product_center_item_title {
    text-align: center;
    color: #fff;
}

.product_center_item_pic {
    width: 15rem;
    height: 15rem;
    border-radius: 50%;
    overflow: hidden;
    background-color: #fff;
    margin-top: 2rem;
    /* padding: 1rem; */
    margin: 2rem auto 0;
    display: flex;

}

.product_center_item_pic img {
    width: 100%;
}

.product_center_swiper {
    width: 100%;
    height: 50vh;
    margin-top: 4rem;
    overflow: hidden;
    position: relative;
}

.product_center_swiper .swiper-slide {
    /* display: flex; */
    /* align-items: center; */
}

.product_slide_item {
    background: rgba(255, 255, 255, 0.7);
    width: 100%;
    height: 80%;
    margin-top: 10%;
    box-shadow: rgba(255, 255, 255, 0.2) 0px 5px 5px 5px;
}

.product_slide_item:hover img {
    transform: scale(1.2);
}

.product_slide_item:hover .product_slide_item_bottom {
    background-color: #ca2e2f;
}

.product_slide_item:hover .product_slide_item_title {
    color: #fff;
}

.product_slide_item:hover .product_slide_item_content::after {
    width: 100%;
    background-color: #fff;
}

.product_slide_item:hover .product_slide_item_icon {
    background: url(/v2/d/images/eye_white.png) no-repeat;
    background-size: contain;
    background-position: center;
}

.product_slide_item_top {
    width: 100%;
    height: 70%;
    overflow: hidden;
    display: flex;
}

.product_slide_item_top img {
    width: 100%;
    object-fit: contain;
    transition: all 1s;
}

.product_slide_item_bottom {
    width: 100%;
    height: 30%;
    padding: 3%;
    background-color: rgba(255, 255, 255, 0.5);
    transition: background-color 1s;
    display: flex;
    align-items: center;
    justify-content: center;
}

.product_slide_item_content {
    width: 80%;
    padding: 1.5rem 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: relative;
}

.product_slide_item_content::after {
    content: "";
    position: absolute;
    bottom: 0;
    right: 0;
    width: 10%;
    height: 2px;
    background-color: gray;
    transition: all 1s ease;
}

.product_slide_item_title {
    width: 80%;
    font-size: 1.2rem;
    font-weight: bold;
    transition: all 1s;
}

.product_slide_item_icon {
    width: 2rem;
    height: 2rem;
    background: url(/v2/d/images/eye_gray.png) no-repeat;
    background-size: contain;
    background-position: center;
    transition: all 1s;
}

.swiper-button-next,
.swiper-button-prev {
    width: 3rem;
    height: 3rem;
    border-radius: 50%;
}

.swiper-button-next {
    background: url(/v2/d/images/arrow_right_white.png) no-repeat;
    background-size: 50%;
    background-position: center;
    background-color: #ca2e2f;
}

.swiper-button-prev {
    background: url(/v2/d/images/arrow_left_white.png) no-repeat;
    background-size: 50%;
    background-position: center;
    background-color: #ca2e2f;
}

/* 生产设备展示 */
.equipment_display {
    background: url(/v2/d/images/equipment_display3.jpg) no-repeat;
    background-size: cover;
    background-position: center;
}

.equipment_display_box {
    width: 100%;
}

.equipment_display_box .swiper-button-next {
    width: 3rem;
    height: 6rem;
    border-radius: 5px;
    background: url(/v2/d/images/arrow_right_white.png) no-repeat;
    background-size: 80%;
    background-position: center;
    background-color: rgba(255, 255, 255,0.2);
    right: calc(-3rem - 15px);
}

.equipment_display_box .swiper-button-prev {
    width: 3rem;
    height: 6rem;
    border-radius: 5px;
    background: url(/v2/d/images/arrow_left_white.png) no-repeat;
    background-size: 80%;
    background-position: center;
    background-color: rgba(255, 255, 255,0.2);
    left: calc(-3rem - 15px);
}

.equipment-swiper-container {
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.equipment-swiper-container .swiper-slide {
    padding: 0;
}

.equipment-swiper-image {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

/* 关于我们 */
.about_us {
    position: relative;
}

.about_us_left {
    width: 100%;
    height: 70%;
    display: flex;
    flex-direction: column;
    position: relative;
    z-index: 3;
}

.about_us_left_top {
    width: 45%;
}

.swiper_slide_company_name {
    font-size: 1.5rem;
    padding: 1rem 0;
    margin: 1rem 0;
    border-bottom: 1px solid #e0e0e0;
}

.about_us_describe {
    font-size: 1rem;
    line-height: 2;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 3;
    overflow: hidden;
    text-overflow: ellipsis;
    word-break: break-word;
}

.about_us_learn_more {
    text-align: right;
    margin-top: 1rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid #e0e0e0;
}




.about_us_right {
    width: 50%;
    position: absolute;
    right: 0;
    top: 0;
    bottom: 0;
    background: url(/v2/d/images/quality_02.jpg) no-repeat;
    background-size: cover;
    background-position: center;
    -webkit-clip-path: polygon(25% 0%, 100% 0, 100% 100%, 25% 100%, 0% 50%);
    clip-path: polygon(25% 0%, 100% 0, 100% 100%, 25% 100%, 0% 50%);
    -webkit-filter: blur(2px);
}

.about_us_position {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: 2rem 10rem;
    background-color: rgba(255, 255, 255, 0.5);
}

.counters {
    display: flex;
    justify-content: space-between;
    flex-flow: wrap;
}

.counter_box {
    margin: 2rem;
}

.counter_count {
    display: flex;
    align-items: center;
}

.counter_count span {
    margin-left: 0.3rem;
    font-size: 1.3rem;
}

.counter {
    font-size: 2rem;
    font-weight: bold;
}

/* 联系我们 */
.contact_us {
    background: url(/v2/d/images/contact_us1.jpg) no-repeat;
    background-size: cover;
    background-position: center;
}

.contact_us_bottom {
    margin-top: 3rem;
}

.contact_us_list {
    display: flex;
    position: relative;
    z-index: 2;
    flex-flow: wrap;
}

.contact_us_item {
    margin: 0 1%;
    background-color: rgba(255, 255, 255, 0.8);
    box-shadow: rgba(153, 153, 153, 0.2) 5px 5px 5px;
    width: 31%;
    border-radius: 10px;
    padding: 1rem 1.5rem;
    cursor: pointer;
    transform: none;
    transition: transform 0.5s ease;
    box-sizing: border-box;
    font-size: 1rem;
}

.contact_us_item .item_name {
    font-size: 1.5rem;
}

.contact_us_item:hover {
    transform: translateY(-20px);
}

.item_line {
    width: 100%;
    height: 1px;
    background-color: #949292;
    margin: 1.6rem 0;
}

.item_line_background {
    background-color: #ca2e2f;
    width: 20%;
    height: 3px;
    transition: width 1s ease;
}

.contact_us_item:hover .item_line_background {
    width: 100%;
}



/* 企业文化 */
.enterprise_culture {
    background: url(/v2/d/images/enterprise_culture.jpg) no-repeat;
    background-size: cover;
    background-position: center;
}

.enterprise_culture_list {
    display: flex;
    height: 50vh;
    flex-flow: wrap;
}

.enterprise_culture_item {
    width: 23%;
    height: 100%;
    margin: 0 1%;
    border-radius: 10px;
    overflow: hidden;
    cursor: pointer;
}

.good_faith {
    background: url(/v2/d/images/good_faith.png) no-repeat;
    background-size: cover;
    background-position: center;
}

.responsibility {
    background: url(/v2/d/images/responsibility.png) no-repeat;
    background-size: cover;
    background-position: center;
}

.cooperation {
    background: url(/v2/d/images/cooperation.png) no-repeat;
    background-size: cover;
    background-position: center;
}

.identification {
    background: url(/v2/d/images/identification.png) no-repeat;
    background-size: cover;
    background-position: center;
}

.enterprise_culture_item_background {
    width: 100%;
    height: 100%;
    overflow: hidden;
    /* position: relative; */
    transition: all 1s;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: #fff;
}

.good_faith .enterprise_culture_item_background {
    background-color: rgba(202, 46, 47, 0.75);
}

.responsibility .enterprise_culture_item_background {
    background-color: rgba(30, 116, 74, 0.75);
}

.cooperation .enterprise_culture_item_background {
    background-color: rgba(5, 86, 139, 0.75);
}

.identification .enterprise_culture_item_background {
    background-color: rgba(235, 124, 0, 0.75);
}

.enterprise_culture_item:hover .enterprise_culture_item_background {
    background-color: transparent;
    /* opacity: 0; */
}

.enterprise_culture_item:hover .enterprise_culture_item_sketch,
.enterprise_culture_item:hover .icon {
    display: none;
    /* opacity: 0; */
}

.enterprise_culture_item:hover .enterprise_culture_item_background {
    justify-content: end;
}

.enterprise_culture_item:hover .enterprise_culture_item_title {
    color: #ca2e2f;
    /* font-size: 2rem; */
}

.enterprise_culture_item_title {
    /* position: absolute; */
    bottom: 0;
    width: 100%;
    padding: 1rem;
    text-align: center;
    font-size: 1.7rem;
    font-weight: bold;
    transition: color 1s;
}

.enterprise_culture_item_sketch {
    width: 80%;
    text-align: center;
}

.enterprise_culture_item_background .icon {
    width: 5rem;
    height: 5rem;
    /* position: absolute; */
    left: calc(50% - 2.5rem);
    top: calc(50% - 5rem);
}

.icon_good_faith {
    background: url(/v2/d/images/icon_good_faith.png) no-repeat;
    background-size: contain;
    background-position: center;
}

.icon_responsibility {
    background: url(/v2/d/images/icon_responsibility.png) no-repeat;
    background-size: contain;
    background-position: center;
}

.icon_cooperation {
    background: url(/v2/d/images/icon_cooperation.png) no-repeat;
    background-size: contain;
    background-position: center;
}

.icon_identification {
    background: url(/v2/d/images/icon_identification.png) no-repeat;
    background-size: contain;
    background-position: center;
}







.footer_slide {
    height: 60vh !important;
    background-color: #05568b;
}




.fixed_footer {
    position: absolute;
    width: 100%;
    background: #000;
    bottom: 0;
}

.fixed_footer_box {
    padding: 2vh 10%;
    display: flex;
    justify-content: space-between;
    font-size: 0.8rem;
    color: hsla(0, 0%, 100%, .4);
}

.fixed_footer_link span {
    margin-right: 1rem;
}

.fixed_footer_link span::after {
    content: "|";
    margin-left: 1rem;
}

.fixed_footer_link span:last-child:after {
    content: none;
}

.fixed_footer_box span a:hover {
    color: #fff;
}





.float_fixed_list {
    width: 50px;
    display: flex;
    flex-direction: column;
    position: fixed;
    left: 0;
    top: 50%;
    z-index: 100000;
}

.float_fixed_item {
    width: 50px;
    height: 50px;
    margin: 2px 0;
    background-color: #1057a0;
    position: relative;
    cursor: pointer;
}

.float_fixed_list>a .float_fixed_item {
    border-top-right-radius: 6px;
}

.float_fixed_list>.float_fixed_item {
    border-bottom-right-radius: 6px;
}

.float_fixed_item_icon {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.float_fixed_item_icon img {
    width: 70%;
    height: 70%;
}

.float_fixed_item_position {
    position: absolute;
    top: 0;
    left: -255px;
    height: 100%;
    transition: all 0.5s;
    white-space: nowrap;
    z-index: -1;
}

.float_fixed_item:hover .float_fixed_item_position {
    left: 65px;
}

.float_fixed_item_position .item_con {
    height: 100%;
    transition: all 0.5s;
    width: 255px;
    padding-right: 15px;
}

.float_fixed_item_position .item_con::before {
    content: "";
    width: 15px;
    height: 15px;
    background-color: #1057a0;
    position: absolute;
    top: 35%;
    left: -7.5px;
    transform: rotate(45deg);
}

.float_fixed_item_position .item_con .con {
    background-color: #1057a0;
    border-radius: 3px;
    color: #fff;
    font-size: 16px;
    display: block;
    height: 100%;
    box-shadow: -2px 3px 5px rgba(0, 0, 0, 0.15);
    display: flex;
    align-items: center;
    justify-content: center;
}





@media (max-width: 1760px) {
    html {
        font-size: 17px;
    }

}

@media (max-width: 1640px) {
    html {
        font-size: 16px;
    }

}

@media (max-width: 1520px) {
    html {
        font-size: 15px;
    }

}

@media (max-width: 1460px) {
    html {
        font-size: 14px;
    }

}

@media (max-width: 1340px) {
    html {
        font-size: 13px;
    }


}

@media (max-width: 1230px) {
    html {
        font-size: 12px;
    }

}

@media (max-width: 1140px) {
    html {
        font-size: 11px;
    }

    .enterprise_culture_list {
        display: flex;
        justify-content: space-around;
    }

    .enterprise_culture_item {
        width: 45%;
        height: 48%;
        margin: 1%;
    }
}


@media (max-width: 899px) {
    .header {
        padding: 0 5rem;
    }

    .header_fixed {
        display: flex;
    }

    .header_navigation_box,
    .header_language {
        display: none;
    }

    .contact_us_item {
        width: 48%;
        margin-bottom: 2.5rem;
    }

    .about_us_right {
        width: 100%;
        -webkit-clip-path: polygon(25% 0%, 100% 0, 100% 100%, 25% 100%, 0% 50%);
        clip-path: polygon(0% 0%, 100% 0%, 100% 50%, 100% 100%, 0% 100%);
        -webkit-filter: blur(2px);
    }

    .about_us_left_top {
        color: #fff;
        width: 100%;
    }

    .about_us_left_top .c_888888 {
        color: #fff;
    }

    .about_us_position {
        padding-bottom: calc(50px + 1rem) !important;
    }

    .enterprise_culture_item {
        width: 48%;
    }
}

@media screen and (max-width: 768px) {
    html {
        font-size: 10px;
    }

    .fixed_footer_box {
        display: none;
    }

    .float_fixed_list {
        bottom: 0;
        top: auto;
        width: 100%;
        flex-direction: row;
        justify-content: space-between;
        background-color: #fff;
    }

    .float_fixed_list a {
        display: block;
        width: 33%;
        flex: 1;
        border-right: 1px solid #fff;
    }

    .float_fixed_item {
        width: 33%;
        background-color: rgba(0, 0, 0, 0.2);
        border-radius: 0 !important;
        margin: 0;
    }

    .float_fixed_list a .float_fixed_item {
        width: 100%;
    }

    .float_fixed_item_icon {
        width: auto;
    }

    .float_fixed_item_icon img {
        width: auto;
        height: 70%;
    }

    .float_fixed_item_position {
        left: 0;
        top: auto;
        bottom: -70px;
        background-color: #fff;
        border-radius: 5px;
        min-width: 100%;
    }

    .float_fixed_item:hover .float_fixed_item_position {
        bottom: 65px;
        left: 0;
        top: auto;
    }

    .float_fixed_item_position .item_con {
        width: auto;
        padding: 0;
    }

    .float_fixed_item_position .item_con .con {
        background-color: #fff;
        color: #000;
    }

    .float_fixed_item_position .item_con::before {
        content: "";
        width: 15px;
        height: 15px;
        background-color: #fff;
        position: absolute;
        top: auto;
        bottom: -7.5px;
        left: calc(50% - 7.5px);
        transform: rotate(45deg);
    }

    .tt {
        padding: 1rem;
    }
}

@media (max-width: 650px) {

    .swiper_slide_box {
        padding: 8rem 5rem 2rem;
    }

    .about_us_position {
        padding: 2rem;
    }

    .contact_us_list {
        justify-content: space-around;
    }

    .contact_us_item {
        width: 70%;
        margin-bottom: 2.5rem;
    }

}

@media (max-width: 550px) {}

@media (max-width: 400px) {
    .header {
        padding: 0 2rem;
    }

    .swiper_slide_box {
        padding: 8rem 5rem 2rem 2rem;
    }

    .contact_us_bottom {
        margin-top: 1rem;
    }

    .contact_us_item {
        width: 100%;
        margin-bottom: 25px;
    }
}

@media (max-height: 650px) {
    .swiper_slide_box {
        justify-content: start;
    }

    .swiper_slide_describe {
        margin: 1rem auto;
        width: 100%;
    }

    .video_text {
        padding-bottom: 50px;
    }


    .counter_box {
        margin: 1rem;
    }

    /* .equipment_display_box {
        height: 45%;
    } */

    .contact_us_list {
        justify-content: space-between;
    }

    .contact_us_item {
        width: 48%;
        margin-bottom: 15px;
    }

    .contact_us_item:hover {
        transform: none;
    }
}