/* 大屏幕（大桌面显示器，大于等于 1600px） */

@media screen and (min-width:1921px) {
    .mobile,
    .m_img,
    .m_nav {
        display: none;
    }
    .about-section,
    .nybanner,
    .contact-section {
        background-size: 100% auto !important;
    }
}

@media only screen and (min-width: 1600px) and (max-width: 1920px) {
    .mobile,
    .m_img,
    .m_nav {
        display: none;
    }
}

@media only screen and (min-width: 1200px) and (max-width: 1600px) {
    .mobile,
    .m_img,
    .m_nav {
        display: none;
    }
    .container,
    .wrap {
        width: 1200px;
    }
    .about-section .main-title {
        font-size: 40px;
    }
    .about-section {
        padding-bottom: 70px;
    }
    .advantage-slider {
        height: 730px;
    }
    .product-section .product-card {
        min-width: calc(23.3% - 15px);
    }
    .news-section .card-title {
        font-size: 20px;
    }
    .product-section .card-image {
        aspect-ratio: 1 / 1.2;
    }
    .data-container {
        flex-wrap: wrap;
        justify-content: center;
    }
    .data-card {
        flex: 0 0 calc(50% - 15px);
        min-width: 300px;
    }
    /* 中屏时取消错落，改为整齐排列 */
    .card-2,
    .card-4 {
        margin-top: 0;
    }
    .zhf-about-showcase {
        grid-template-columns: 0.6fr 1.3fr 0.6fr;
    }
    .image-area {
        width: 460px;
        height: 460px;
    }
    .circle-img {
        width: 400px;
        height: 400px;
    }
    .rotating-ring {
        width: 460px;
        height: 460px;
    }
    .text-info {
        width: 400px;
    }
    .timeline-left {
        width: 130px;
    }
    .timeline-right {
        padding-left: 40px;
    }
    .product-section .card-list li{
        font-size: 16px;
    }
    .product-section .product-card .listBox{
        display: block;
    }
    .global-section .header-right{
        max-width: 100%;
    }
    .zhf-pdp-title{
        font-size: 16px;
    }
    .zhf-about-title{
        font-size: 30px;
    }
    .zhf-data-desc{
        font-size: 16px;
    }
    .zhf-sol-title h2{
        font-size: 30px;
    }
    .zhf-step-title{
        font-size: 20px;
    }
    .accordion-container .accordion-header{
        font-size: 20px;
    }
    .section-subtitle{
        font-size: 26px;
    }
    .cs-info-item{
        font-size: 20px;
    }
    .search-input{
        font-size: 22px;
    }
}


/* 小屏幕（手机） */

@media only screen and (min-width: 320px) and (max-width: 1200px) {
    .pc,
    .top-bar,
    header,
    .header-nav {
        display: none;
    }
    .mobile {
        display: block;
    }
    .container,
    .wrap {
        padding: 0 .2rem;
        overflow: hidden;
        width: auto;
    }
    .m_img {
        display: block;
        height: 1.1rem;
        background: #ffffff;
        width: 100%;
        overflow: hidden;
        display: flex;
        align-items: Center;
        position: fixed;
        z-index: 999;
        top: 0;
        padding: 0 .2rem;
        -moz-box-shadow: 0px 4px 6px #d4d5d6;
        -webkit-box-shadow: 0px 4px 6px #d4d5d6;
        box-shadow: 0px 4px 6px #d4d5d6;
    }
    .m_img .headlf {
        float: left;
    }
    .m_img .headcent {
        float: left;
        margin-left: .2rem;
        color: #e61c42;
        font-size: .18rem;
        line-height: .3rem;
    }
    .m_img .headcent select {
        width: 1.2rem;
        height: .4rem;
        border: 0;
        appearance: none;
        -moz-appearance: none;
        -webkit-appearance: none;
        background: url('../images/arrow_06.jpg') 80% center no-repeat;
        background-size: .13rem;
        background-color: #e5e5e5;
        display: block;
        padding-left: .1rem;
        margin-left: .3rem;
    }
    .m_img .headlf .m_logo {
        height: auto;
        width: 70%;
        display: block
    }
    .m_img .headrg {
        position: absolute;
        right: .2rem;
    }
    .m_img .headrg a .m_menuimg {
        height: .45rem;
        width: .53rem;
        display: block
    }
    .m_nav {
        display: block;
        position: fixed;
        top: 0px;
        left: 0px;
        width: 0px;
        height: 0px;
        overflow: hidden;
        z-index: 10000
    }
    .m_nav .closecover {
        position: absolute;
        width: 100%;
        height: 100%;
        background: #0b0d19;
        filter: alpha(opacity=0);
        opacity: 0;
        left: 0px;
        top: 0px;
        z-index: 1
    }
    .m_nav .closeicon {
        position: absolute;
        width: 20%;
        left: 0;
        top: 5%;
        z-index: 100;
        text-align: center;
        filter: alpha(opacity=0);
        opacity: 0
    }
    .m_nav .m_navList {
        position: absolute;
        width: 80%;
        right: 0px;
        top: 0px;
        background: #0b0d19;
        height: 100%;
        z-index: 100;
        right: -80%;
        overflow-y: scroll;
    }
    .m_nav .m_navList ul {
        padding-left: 5%;
        padding-right: 5%
    }
    .m_nav .m_navList ul li {
        border-bottom: 1px solid #232530
    }
    .m_nav .m_navList ul li a {
        display: block;
        height: 45px;
        color: #fff;
        line-height: 45px;
        padding-left: 5%;
        font-size: 16px
    }
    .m_nav .m_navList ul li .m_f_a {
        display: flex;
        align-items: center;
        justify-content: space-between;
        width: 100%
    }
    .m_nav .m_navList ul li .m_f_a a {
        flex: 1;
    }
    .m_nav .m_navList ul li .m_f_a i {
        width: 40px;
        height: 35px;
        box-sizing: border-box;
        padding: 0 5px;
        display: block;
    }
    .m_nav .icon {
        background: url(../images/plus.png) 100% no-repeat;
        background-position: 50% 50%;
        -webkit-transition: all 0s;
        -moz-transition: all 0s;
        transition: all 0s
    }
    .icon_on {
        background: url(../images/reduce.jpg) 50% no-repeat!important;
        background-position: 50% 50%;
        -webkit-transition: all 0s;
        -moz-transition: all 0s;
        transition: all 0s
    }
    .m_nav .m_navList ul li .m_s_nav {
        display: none;
        width: 100%;
    }
    .m_nav .m_navList ul li .m_s_nav a {
        display: block;
        height: 40px;
        line-height: 40px;
        font-size: 13px;
        padding-left: 10%;
        overflow: hidden;
        white-space: nowrap;
        width: 90%;
        text-overflow: ellipsis;
    }
    .m_img .language {
        position: absolute;
        right: .8rem;
    }
    .m_img .language img {
        width: 80%;
    }
    .header-nav {
        padding: 15px 20px;
    }
    .nav-links {
        display: none;
        /* Hide on mobile for simplicity */
    }
    .slide-content {
        padding-left: 5%;
        padding-right: 5%;
    }
    .slide-title {
        font-size: .3rem;
    }
    .slide-year {
        font-size: .3rem;
    }
    .banner-slider {
        height: 40vh;
        margin-top: 1.1rem;
    }
    .banner-pagination {
        left: 5%;
    }
    .about-section {
        background-size: 100% auto;
        margin-top: -.3rem;
        padding-bottom: 0;
    }
    .current-page {
        font-size: .28rem;
    }
    .total-pages {
        font-size: .24rem;
    }
    .about-container {
        width: 100%;
        /* 屏幕变窄时，容器改为百分比 */
        flex-direction: column;
        /* 改为上下排列 */
        text-align: center;
    }
    .about-text {
        width: 100%;
        margin-bottom: 50px;
    }
    .about-section .about-image {
        top: 90%;
    }
    .data-section .data-container {
        flex-wrap: wrap;
        gap: .3rem;
        padding: 0 .2rem;
    }
    .data-section .data-card {
        flex: initial;
        min-width: auto;
        width: 47%;
    }
    .data-section .card-2,
    .data-section .card-4 {
        margin-top: 0;
    }
    .data-section .card-header h3 {
        font-size: .22rem;
    }
    .data-section .card-number {
        padding: 0 .24rem .2rem;
        font-size: .4rem;
    }
    .data-section .card-number .unit{
        font-size: .2rem;
    }
    .data-section .card-header {
        padding: .2rem;
        gap: .1rem;
    }
    .about-section .btn-learn-more {
        margin-top: .8rem;
        padding: .12rem .3rem;
        font-size: .24rem;
        width: 2.6rem;
    }
    .wave-decoration {
        height: 80px;
        /* 小屏幕波浪变矮一点 */
    }
    .about-container {
        margin-top: .4rem;
        background: #f3f4f8;
    }
    .about-section .text-content p {
        font-size: .22rem;
        line-height: .36rem;
    }
    .about-text {
        margin-top: .4rem;
    }
    .about-section .sub-title {
        font-size: .3rem;
    }
    .about-section .main-title {
        font-size: .4rem;
        margin: 0 0 .3rem 0;
    }
    .advantage-slider .h1 {
        font-size: .4rem;
        margin-top: .6rem;
    }
    .advantage-slider {
        height: 7rem;
    }
    .advantage-btn {
        width: .6rem;
        height: .6rem;
    }
    .advantage-slider .prev-btn {
        left: .4rem;
    }
    .advantage-slider .next-btn {
        right: .4rem;
    }
    .advantage-slide-content h2 {
        font-size: .3rem;
        margin-right: .4rem;
    }
    .advantage-slide-content p {
        font-size: .2rem;
    }
    .data-box .num-scroll {
        font-size: .8rem;
    }
    .data-box .unit {
        font-size: .24rem;
    }
    .advantage-slider .data-box .txt {
        font-size: .3rem;
    }
    .advantage-slide-content .t2 {
        font-size: .2rem;
    margin-top: .5rem;
    width: 70%;
    }
    .data-card {
        flex: 0 0 100%;
        max-width: 400px;
    }
    .card-number {
        font-size: 40px;
    }
    .data-section .card-image {
        height: 1.8rem;
        overflow: hidden;
    }
    .data-section {
        padding: 0 0 .8rem 0;
    }
    .product-section .product-card {
        min-width: calc(50% - 10px);
    }
    .product-section .section-header {
        justify-content: space-between;
        align-items: center;
        gap: .2rem;
        margin-bottom: .3rem;
        margin-top: .6rem;
        padding-right: 0;
    }
    .global-section .header-left h2 {
        font-size: .3rem;
        margin-bottom: .1rem;
    }
    .global-section .header-left h1 {
        font-size: .4rem;
    }
    .product-section .listBox {
        flex-wrap: wrap;
        margin-bottom: .3rem;
    }
    .global-section .section-header {
        margin-bottom: 1em;
        margin-top: 1rem;
        flex-wrap: wrap;
    }
    .global-section .section-header .header-left {
        width: 100%;
    }
    .global-section .header-right {
        max-width: 100%;
        font-size: .22rem;
        margin-top: .2rem;
    }
    .global-section .map-tag {
        padding: .02rem .1rem;
    font-size: .12rem;
    }
    .news-section .header-left h2 {
        font-size: .3rem;
    }
    .news-section .header-left h1 {
        font-size: .3rem;
    }
    .product-section .card-list {
        width: 100%;
    }
    .product-section .card-list li {
        font-size: .22rem;
    }
    .product-section .card-footer {
        margin-top: .2rem;
    }
    .product-section .arrow-btn {
        width: .6rem;
        height: .6rem;
    }
    .product-section .product-list {
        gap: .2rem;
    }
    .product-section .card-image {
        aspect-ratio: 1 / 1.25;
    }
    .product-section .card-title {
        font-size: .28rem;
        margin-bottom: .1rem;
    }
    .product-section .title-group h3 {
        font-size: .3rem;
    }
    .product-section .title-group h2 {
        font-size: .4rem;
    }
    .product-section .nav-arrows {
        align-self: flex-end;
        margin-top: -40px;
    }
    .news-section .news-list {
        grid-template-columns: 1fr;
    }
    .news-section .section-header {
        gap: .2rem;
        padding: .3rem 0;
        margin-bottom: .3rem;
    }
    .news-section .card-content {
        padding: .2rem;
    }
    .news-section .card-title {
        font-size: .3rem;
        margin-bottom: .2rem;
    }
    .news-section .news-date {
        font-size: .2rem;
    }
    .news-section {
        margin-bottom: .6rem;
    }
    .site-footer {
        padding: .6rem 0 .2rem;
        font-size: .24rem;
    }
    .site-footer .footer-logo {
        margin-bottom: .3rem;
    }
    .site-footer .divider {
        margin-bottom: .4rem;
    }
    .site-footer .col-title {
        font-size: .26rem;
        margin-bottom: .25rem;
    }
    .site-footer .contact-list li {
        margin-bottom: .2rem;
    }
    .site-footer .quick-links {
        display: flex;
        justify-content: space-between;
    }
    .site-footer .quick-links li {
        margin-bottom: .1rem;
        font-size: .22rem;
    }
    footer p {
        font-size: .24rem !important;
    }
    .site-footer .footer-input {
        padding: .2rem;
        font-size: .24rem;
    }
    .site-footer .footer-bottom {
        padding-top: .2rem;
        font-size: .22rem;
    }
    .site-footer .footer-content {
        grid-template-columns: 1fr;
        /* 手机端单栏 */
        gap: 40px;
    }
    .site-footer .form-row {
        flex-direction: column;
        gap: 15px;
    }
    .zhf-pdp-content {
        flex-direction: column;
    }
    .zhf-pdp-sidebar {
        width: 100%;
        padding: .2rem 0;
    }
    .zhf-pdp-menu-item {
        margin-bottom: .2rem;
    }
    .zhf-pdp-menu-item a {
        font-size: .26rem;
    }
    .zhf-pdp-breadcrumb {
        font-size: .2rem;
        margin: .2rem auto;
    }
    .nybanner .wrap {
        height: 3rem;
        font-size: .5rem;
        margin-top: 1.1rem;
    }
    .zhf-pdp-title {
        font-size: .26rem;
    }
    .zhf-pdp-pagination {
        margin-top: .6rem;
        gap: .1rem;
    }
    .zhf-pdp-page-btn {
        min-width: .4rem;
        height: .4rem;
        font-size: .2rem;
    }
    .zhf-pdp-wrapper {
        margin-bottom: .6rem;
    }
    .zhf-pdp-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .zhf-about-showcase {
        display: flex;
        flex-direction: column;
        gap: 40px;
    }
    .zhf-data-left,
    .zhf-data-right {
        text-align: center;
        padding: 0;
    }
    .zhf-center-image-wrapper {
        order: -1;
        margin-bottom: 20px;
    }
    /* 图片在移动端置顶 */
    .zhf-center-image {
        transform: scale(1);
    }
    .zhf-sol-steps {
        grid-template-columns: repeat(2, 1fr);
    }
    .zhf-inner-card {
        flex-direction: column;
    }
    .zhf-image-block {
        width: 100%;
        height: 200px;
    }
    .zhf-header {
        padding: 0 20px;
    }
    .zhf-content-wrapper {
        padding: 0 20px;
    }
    .zhf-item.active .zhf-content-wrapper {
        padding-bottom: 20px;
    }
    .timeline-section .content-wrapper {
        flex-direction: column;
        height: auto;
        padding: .4rem .2rem;
    }
    .timeline-section .timeline-left {
        width: 100%;
        height: 1rem;
        overflow-x: auto;
        overflow-y: hidden;
        align-items: center;
        margin-bottom: 0;
        /* 隐藏滚动条（可选，为了美观） */
        -ms-overflow-style: none;
        /* IE and Edge */
        scrollbar-width: none;
        /* Firefox */
    }
    .year-item.active {
        font-size: .36rem;
    }
    .timeline-section .timeline-left::-webkit-scrollbar {
        display: none;
        /* Chrome, Safari and Opera */
    }
    .timeline-section .year-list-track {
        flex-direction: row;
        gap: 20px;
    }
    .section-subtitle {
        font-size: .3rem;
        margin-bottom: 1.2rem;
    }
    .timeline-section {
        height: 12rem;
    }
    .timeline-section .year-item {
        padding-left: 0;
        padding-bottom: .2rem;
        font-size: .3rem;
        height: 1rem;
    }
    .timeline-section .year-item::before {
        left: 50%;
        top: 0;
        transform: translateX(-50%);
        width: 2px;
        height: 10px;
    }
    .timeline-section .timeline-right {
        padding-left: 0;
    }
    .timeline-section .content-display {
        flex-direction: column-reverse;
        text-align: center;
    }
    .timeline-section .section-subtitle::after {
        left: 50%;
        transform: translateX(-50%);
    }
    .timeline-section .big-year {
        font-size: 1rem;
    }
    .timeline-section .text-info {
        width: 100%;
    }
    .timeline-section .desc-text {
        font-size: .26rem;
    }
    .timeline-section .image-area {
        width: 3.4rem;
        height: 3.4rem;
        margin: 0 auto;
    }
    .timeline-section .circle-img {
        width: 3rem;
        height: 3rem;
    }
    .timeline-section .rotating-ring {
        width: 260px;
        height: 260px;
    }
    .contact-section {
        padding: 0 .2rem;
    }
    .cs-card {
        padding: .3rem;
    }
    /* 信息列表变为单列 */
    .cs-info-list {
        grid-template-columns: 1fr;
        gap: .2rem;
    }
    .cs-full-width {
        grid-column: span 1;
    }
    .cs-icon-dot {
        width: .2rem;
        height: .2rem;
    }
    .cs-info-item {
        font-size: .25rem;
    }
    .cs-subtitle {
        font-size: .26rem;
        margin-bottom: .1rem;
    }
    /* 表单行变为单列堆叠 */
    .cs-row {
        flex-direction: column;
        gap: 0;
    }
    .cs-col input {
        padding: .2rem 0;
        font-size: .24rem;
    }
    .cs-form {
        gap: 0;
    }
    .cs-title {
        font-size: .26rem;
    }
    .cs-form-header {
        margin-bottom: .2rem;
    }
    .cs-submit-area {
        justify-content: center;
        /* 手机上按钮居中可能更好看，或者保持 flex-end */
    }
    .cs-btn-submit {
        width: 100%;
        /* 手机上按钮全宽 */
        justify-content: center;
    }
    .news-detail-container .news-title {
        font-size: .3rem;
    }
    .news-detail-container .news-date {
        font-size: .26rem;
        margin-bottom: .24rem;
    }
    .news-detail-container .news-content p {
        font-size: .24rem;
    }
    .news-item {
        flex-direction: column;
        /* 日期也变到上方或隐藏，这里选择放在上方 */
        gap: 15px;
    }
    .news-date-col {
        width: 100%;
        display: flex;
        align-items: baseline;
        gap: 10px;
        border-bottom: 1px solid #eee;
        padding-bottom: 10px;
        margin-bottom: 10px;
    }
    .news-day {
        font-size: 24px;
    }
    .news-title {
        font-size: 18px;
    }
    .news-detail-container {
        margin: 20px 10px;
        padding: 20px 15px;
    }
    .news-title {
        font-size: 22px;
    }
    .news-content {
        font-size: 15px;
    }
    .scroll-down-indicator {
        top: 39%;
    }
    .nybanner {
        background-size: 180% auto !important;
    }
    .zhf-about-title {
        font-size: .4rem;
        font-weight: bold;
        padding-bottom: .2rem;
    }
    .zhf-about-header {
        margin-bottom: .3rem;
    }
    .zhf-about-text {
        font-size: .22rem;
        margin: 0 auto .8rem;
    }
    .zhf-data-number {
        font-size: .5rem;
    }
    .zhf-data-desc {
        font-size: .3rem;
    }
    .zhf-about-section {
        padding-bottom: 1rem;
    }
    .zhf-solution-section {
        min-height: 6rem;
        padding: 1rem .3rem;
    }
    .zhf-sol-title h2 {
        font-size: .4rem;
        margin: 0 .2rem;
    }
    .zhf-sol-top {
        display: block;
        margin-bottom: .5rem;
        gap: .2rem;
    }
    .zhf-sol-desc {
        font-size: .24rem;
        width: 100%;
        line-height: 1.4;
    }
    .zhf-sol-title {
        overflow: hidden;
        margin-bottom: .3rem;
    }
    .zhf-solution-card {
        padding: 1rem .2rem;
    }
    .zhf-sol-divider {
        margin-bottom: .5rem;
    }
    .zhf-step-item {
        padding: .2rem;
    }
    .zhf-step-item img {
        height: 1rem;
    }
    .zhf-step-title {
        font-size: .3rem;
        margin-top: .2rem;
    }
    .accordion-container {
        gap: .2rem;
        margin: .5rem auto;
    }
    .accordion-container .accordion-header {
        height: 1.4rem;
        padding: 0 .3rem;
        font-size: .24rem;
    }
    .accordion-container .accordion-item.active .accordion-content {
        min-height: auto;
        margin-top: .2rem;
        padding: .2rem;
        max-height: none;
    }
    .accordion-container .content-title {
        font-size: .3rem;
        margin-bottom: .2rem;
    }
    .accordion-container .content-text {
        font-size: .22rem;
        max-width: 100%;
        line-height: 1.4;
    }
    .newslist-section .news-container {
        gap: .3rem;
    }
    .newslist-section .news-item {
        flex-direction: column;
        gap: .2rem;
        margin-bottom: .2rem;
    }
    .newslist-section .news-date-col {
        width: 100%;
        text-align: left;
        padding-top: 0;
        display: flex;
        align-items: baseline;
        gap: .1rem;
        margin-bottom: 0;
    }
    .newslist-section .news-content-card {
        flex-direction: column;
        gap: .2rem;
    }
    .newslist-section .news-img-wrapper {
        width: 100%;
        height: auto;
        aspect-ratio: 16 / 9;
    }
    .newslist-section .news-text-area {
        padding: .2rem;
    }
    .newslist-section .news-title {
        font-size: .3rem;
        margin-bottom: .1rem;
    }
    .newslist-section .news-desc {
        font-size: .26rem;
        line-height: 1.6;
        margin-bottom: .15rem;
    }
    /* 调整“更多”链接 */
    .newslist-section .news-more-link {
        font-size: .26rem;
        margin-bottom: .3rem;
    }
}