:root {
    --primary-color: #0a3d6e;
    --secondary-color: #e31e25;
    --accent-color: #1c5ba5;
    --light-color: #f8f9fa;
    --dark-color: #333333;
    --gray-color: #777777;
    --border-color: #eaeaea;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Microsoft YaHei', 'PingFang SC', 'Segoe UI', sans-serif;
}

body {
    color: var(--dark-color);
    line-height: 1.6;
    background-color: #fff;
    overflow-x: hidden;
}
a{text-decoration: none;}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 顶部栏 */
.top-bar {
    background-color: var(--primary-color);
    color: white;
    padding: 8px 0;
    font-size: 14px;
}

.top-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.contact-info {
    display: flex;
    gap: 30px;
}

.contact-info span {
    display: flex;
    align-items: center;
    gap: 8px;
}

.top-social a {
    color: white;
    margin-left: 15px;
    font-size: 16px;
    transition: color 0.3s;
}

.top-social a:hover {
    color: var(--secondary-color);
}

/* 导航栏 */
.header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background-color: rgba(255, 255, 255, 0.95);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: all 0.3s;
}

.header.scrolled {
    background-color: rgba(255, 255, 255, 0.98);
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 0;
}

.language-switcher select {
    background: transparent;
    border: none;
    color: white;
    font-size: 14px;
    padding: 5px;
}
.language-switcher select option{color:#333;}

.logo {
    display: flex;
    align-items: center;
    gap: 15px;
}
.logo a{height: 60px;}
.logo a img{height:100%;}

.logo-img {
    height: 60px;
    width: auto;
}

.logo-text {
    font-size: 28px;
    font-weight: 700;
    color: var(--primary-color);
    letter-spacing: 1px;
}

.logo-text span {
    color: var(--secondary-color);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 40px;
}

.nav-menu a {
    text-decoration: none;
    color: var(--dark-color);
    font-weight: 600;
    font-size: 16px;
    position: relative;
    padding: 5px 0;
    transition: color 0.3s;
}

.nav-menu a:hover,
.nav-menu a.active {
    color: var(--secondary-color);
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--secondary-color);
    transition: width 0.3s;
}

.nav-menu a:hover::after,
.nav-menu a.active::after {
    width: 100%;
}

.mobile-toggle {
    display: none;
    font-size: 24px;
    color: var(--primary-color);
    cursor: pointer;
}


/* 首页横幅 */
.hero-slider {
    height: 700px;
    position: relative;
    overflow: hidden;
}

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

.swiper-slide {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    background-size: cover;
    background-position: center;
}

.slide-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
}

.slide-content {
    position: relative;
    z-index: 2;
    color: white;
    text-align: center;
    max-width: 1000px;
    padding: 0 20px;
}

.slide-content h1 {
    font-size: 56px;
    font-weight: 700;
    margin-bottom: 20px;
    text-shadow: 2px 2px 5px rgba(0, 0, 0, 0.5);
    line-height: 1.2;
}

.slide-content p {
    font-size: 22px;
    margin-bottom: 40px;
    opacity: 0.9;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.btn {
    display: inline-block;
    background-color: var(--secondary-color);
    color: white;
    padding: 16px 40px;
    border-radius: 4px;
    text-decoration: none;
    font-weight: 600;
    font-size: 18px;
    border: none;
    cursor: pointer;
    transition: all 0.3s;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.btn:hover {
    background-color: #c0171c;
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

.btn-outline {
    background-color: transparent;
    border: 2px solid white;
    margin-left: 15px;
}

.btn-outline:hover {
    background-color: white;
    color: var(--primary-color);
}

.swiper-button-next,
.swiper-button-prev {
    color: white;
    background-color: rgba(0, 0, 0, 0.3);
    width: 60px;
    height: 60px;
    border-radius: 50%;
}

.swiper-button-next:after,
.swiper-button-prev:after {
    font-size: 24px;
}

/* 关于我们 */
.about-section {
    padding: 100px 0;
    background-color: var(--light-color);
}

.section-header {
    text-align: center;
    margin-bottom: 70px;
}

.section-title {
    font-size: 42px;
    color: var(--primary-color);
    margin-bottom: 20px;
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 4px;
    background-color: var(--secondary-color);
}

.section-subtitle {
    font-size: 20px;
    color: var(--gray-color);
    max-width: 720px;
    margin: 0 auto;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-text h3 {
    font-size: 32px;
    color: var(--primary-color);
    margin-bottom: 25px;
    line-height: 1.3;
}

.about-text p {
    font-size: 18px;
    color: var(--dark-color);
    margin-bottom: 20px;
}

.about-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    margin-top: 40px;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 15px;
}

.feature-icon {
    width: 50px;
    height: 50px;
    background-color: var(--secondary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    flex-shrink: 0;
}

.feature-text h4 {
    font-size: 18px;
    color: var(--primary-color);
    margin-bottom: 5px;
}

.about-image {
    position: relative;
    border-radius: 8px;
    overflow: hidden;
    /* box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1); */
}

.about-image img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 0.5s;
}

.about-image:hover img {
    transform: scale(1.05);
}

/* 产品与服务 */
.products-section {
    padding: 100px 0;
    background-color: white;
}

.products-tabs {
    margin-top: 50px;
}

.tab-buttons {
    display: flex;
    justify-content: center;
    margin-bottom: 50px;
    flex-wrap: wrap;
    gap: 10px;
}

.tab-btn {
    padding: 15px 35px;
    background-color: #f5f5f5;
    border: none;
    border-radius: 4px;
    font-size: 18px;
    font-weight: 600;
    color: var(--dark-color);
    cursor: pointer;
    transition: all 0.3s;
}

.tab-btn:hover,
.tab-btn.active {
    background-color: var(--secondary-color);
    color: white;
}

.tab-content {
    display: none;
    animation: fadeIn 0.5s;
}

.tab-content.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.product-card {
    background-color: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s, box-shadow 0.3s;
}

.product-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.product-img {
    height: 250px;
    overflow: hidden;
}

.product-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s;
}

.product-card:hover .product-img img {
    transform: scale(1.1);
}

.product-content {
    padding: 25px;
}

.product-content h3 {
    font-size: 22px;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.product-content p {
    color: var(--gray-color);
    margin-bottom: 20px;
    font-size: 16px;
}

.product-link {
    color: var(--secondary-color);
    text-decoration: none;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    text-transform: uppercase;
    font-size: 15px;
    letter-spacing: 1px;
}

.product-link:hover {
    gap: 12px;
}

/* 技术能力大画面切换 */
.capabilities-section {
    padding: 100px 0;
    background-color: var(--light-color);
    position: relative;
    overflow: hidden;
}

.capabilities-tabs {
    margin-top: 60px;
}

.cap-tab-buttons {
    display: flex;
    justify-content: center;
    margin-bottom: 60px;
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 10px;
}

.cap-tab-btn {
    padding: 15px 40px;
    background-color: transparent;
    border: none;
    border-bottom: 4px solid transparent;
    font-size: 20px;
    font-weight: 600;
    color: var(--dark-color);
    cursor: pointer;
    transition: all 0.3s;
    position: relative;
}

.cap-tab-btn:hover,
.cap-tab-btn.active {
    color: var(--secondary-color);
    border-bottom-color: var(--secondary-color);
}

.cap-tab-content {
    display: none;
}

.cap-tab-content.active {
    display: block;
}

.cap-content-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.cap-content h3 {
    font-size: 36px;
    color: var(--primary-color);
    margin-bottom: 25px;
}

.cap-content p {
    font-size: 18px;
    color: var(--dark-color);
    margin-bottom: 30px;
}

.cap-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 25px;
}

.cap-feature {
    display: flex;
    gap: 15px;
}

.cap-feature i {
    color: var(--secondary-color);
    font-size: 24px;
    margin-top: 5px;
}

.cap-feature h4 {
    font-size: 18px;
    color: var(--primary-color);
    margin-bottom: 8px;
}

.cap-image {
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.cap-image img {
    width: 100%;
    height: auto;
    display: block;
}

/* 合作伙伴 */
.partners-section {
    padding: 80px 0;
    background-color: white;
}

.partners-slider {
    margin-top: 50px;
}

.partner-slide {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 120px;
    padding: 20px;
    background-color: white;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s;
}

.partner-slide:hover {
    transform: translateY(-5px);
}

.partner-slide div {
    font-size: 24px;
    font-weight: 700;
    color: var(--primary-color);
    text-align: center;
}

/* 页脚 */
.footer {
    background-color: #0d2b4e;
    color: white;
    padding-top: 80px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 50px;
    padding-bottom: 50px;
}

.footer-column h3 {
    font-size: 22px;
    margin-bottom: 30px;
    position: relative;
    padding-bottom: 15px;
}

.footer-column h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 50px;
    height: 3px;
    background-color: var(--secondary-color);
}

.footer-column p {
    color: #bbb;
    margin-bottom: 20px;
    line-height: 1.8;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 15px;
}

.footer-links a {
    color: #bbb;
    text-decoration: none;
    transition: color 0.3s;
    display: flex;
    align-items: center;
    gap: 10px;
}

.footer-links a:hover {
    color: white;
    padding-left: 5px;
}

.footer-links i {
    color: var(--secondary-color);
    font-size: 14px;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: 25px 0;
    text-align: center;
    color: #999;
    font-size: 15px;
}
.footer-bottom a{color:#999;}
.footer-bottom a:hover{color:#e31e25;}

/* 页面标题横幅 */
.page-hero {
    height: 450px;
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: white;
    position: relative;
}

.page-hero-content h1 {
    font-size: 56px;
    font-weight: 700;
    margin-bottom: 20px;
    text-shadow: 2px 2px 5px rgba(0, 0, 0, 0.3);
}

.page-hero-content p {
    font-size: 22px;
    max-width: 800px;
    margin: 0 auto;
    opacity: 0.9;
}

.filter-btn a{color:#333;}
.filter-btn.active a,.filter-btn a:hover{color:#fff;}
.products-tabs .tab-btn a{color:#333;}
.products-tabs .tab-btn a:hover, .products-tabs .tab-btn.active a{
    background-color: var(--secondary-color);
    color: white;
}

/* 分页 */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-top: 40px;
    gap: 10px;
}

.pagination a {
    padding: 0 17px;
    height: 45px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: white;
    color: var(--dark-color);
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s;
    border: 1px solid var(--border-color);
}

.pagination a:hover,
.pagination a.active {
    background-color: var(--secondary-color);
    color: white;
    border-color: var(--secondary-color);
}

.show_news{background:#fff;box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);border-radius: 12px;padding: 30px;}
.show_news .news_title h2{font-size: 20px;line-height:1.5;text-align:center;}
.news_time{margin-top:20px;text-align: center;}
.news_time p{display:inline-block;margin-right:10px;font-size:14px;color:#999;}
.news_time p:nth-child{margin-right:0;}
.show_content{margin-top:40px;font-size:14px;color:#666;line-height:1.7;}
.show_content p{font-size:16px;color:#666;line-height:1.7;margin:5px 0;}
.show_content img{max-width:100%;}
.prevnext{margin-top:40px;}
.prevnext a{height:40px;line-height:40px;display:block;color:#999;font-size:14px;}
.prevnext a:hover{color:#c0171c;}


.litpic{position:relative;width:100%;height:auto;padding-bottom:75%;overflow: hidden;}
.litpic img{position:absolute;width:100%;height:100%;top:0;left:0;object-fit: cover;}
/* show product */
.miaodian{padding-top:100px;margin-top:-100px;}
.cpxxqh {
width: 40%;
height: auto;
float: left;
position: relative;
overflow: hidden;
}
.cpxxqh .swiper {
width: 100%;
height: 100%;

}
.cpxxqh .swiper-slide {
text-align: center;

font-size: 18px;
display: flex;
justify-content: center;
align-items: center;
}
.cpxxqh .swiper-slide .litpic{border:1px solid #eee;box-sizing: border-box;}
.cpxxqh .mySwiper2{margin-top:20px;}
.cpxxqh .swiper-slide img {
display: block;
max-width: 100%;
max-height: 100%;
}
.cpxxqh .swiper-button-next {
width: 30px;
height: 60px;
overflow: hidden;
top: 50%;
margin-top: -30px;
background: url(../images/sprites1008r.png) no-repeat center center / 100% 100%;
border-radius: 0;
right: 30px;
font-size: 30px;
color: #000;
text-align: center;
}
.cpxxqh .swiper-button-prev {
overflow: hidden;
width: 30px;
height: 60px;
top: 50%;
margin-top: -30px;
background: url(../images/sprites1008l.png) no-repeat center center / 100% 100%;
border-radius: 0;
left: 30px;
font-size: 30px;
color: #000;
text-align: center;
}

.cpxxqh .swiper-button-next:after,
.cpxxqh .swiper-container-rtl .swiper-button-prev:after {
display: none;
}
.cpxxqh .swiper-button-prev:after,
.cpxxqh .swiper-container-rtl .swiper-button-next:after {
display: none;
}
.cpxxqh .swiper-container-horizontal>.swiper-pagination-bullets,
.cpxxqh .swiper-pagination-custom,
.cpxxqh .swiper-pagination-fraction {
bottom: 0px;
display: flex;
justify-content: center;
align-items: center;
}
.cpxxqh .swiper-container-horizontal>.swiper-pagination-bullets .swiper-pagination-bullet {
width: 10px;
height: 10px;
background: #DEDEDE;
opacity: 1;
}
.cpxxqh .swiper-container-horizontal>.swiper-pagination-bullets .swiper-pagination-bullet-active {
opacity: 1;
width: 10px;
height: 10px;
background: #d9271b;
}
.cpxx .info {
width: 55%;
height: auto;
float: right;
}
.cpxx .info h1 {
width: 100%;
height: auto;
float: left;
font-weight: 500;
font-size: 32px;
color: #333333;
line-height: 45px;
letter-spacing: 1px;
margin-top: 42px;
margin-bottom: 13px;
}
.cpxx .info .tag {
width: 100%;
height: auto;
float: left;
margin-bottom: 24px;
}
.cpxx .info .tag span {
padding: 0 10px;
height: 28px;
background: rgba(22, 122, 255, 0.1);
border-radius: 4px;
border: 1px solid #91D5FF;
font-weight: 400;
font-size: 16px;
color: #046BA6;
line-height: 26px;
float: left;
}
.cpxx .info .infoitem {
width: 100%;
height: auto;
float: left;
border-top: 1px dashed #D2D2D2;
padding-top: 16px;
margin-bottom: 9px;
color:#999;line-height:1.6;
}
.cpxx .info .infoitem b {
width: 100%;
height: auto;
font-weight: bold;

font-size: 20px;
color: #333333;
line-height: 28px;
margin-bottom: 5px;
}
.cpxx .info .infoitem b:before {
content: "";
width: 3px;
height: 18px;
background: #046BA6;
float: left;
margin-top: 5px;
margin-right: 10px;
}
.cpxx .info .infoitem div{margin-top:15px;}

.cpxx .info .infoitem p {
width: 100%;
height: auto;

font-weight: 500;
font-size: 16px;
color: #666666;
line-height: 30px;
margin: 8px 0;
position: relative;
padding-left: 15px;

}
.cpxx .info .infoitem p::before{
    content: '';
    position: absolute;
    top: 12.5px;
    left: 0;
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: #046BA6;
}
.cpxx .info .buy {
width: 100%;
height: auto;
float: left;
margin-top: 23px;
}
.cpxx .info .buy a {
margin-right: 16px;
float: left;
}

.cpxq {
    width: 100%;
    height: auto;

    margin-top: 80px;
}

.cpxq h2 {
    width: 100%;
    height: 43px;
    border-bottom: 1px solid #E8E8E8;
    margin-bottom: 24px;
    line-height: 27px;
    font-size: 20px;
    color: #d9271b;
}

.cpxq .content {
    width: 100%;
    height: auto;
}

.cpxq .content p {
    line-height: 30px;
    margin: 5px 0;
    font-size: 16px;
    color: #666;
    text-wrap: initial!important;
    /*text-align: justify!important;*/
}

.cpxq .content table{width: 49% !important;margin:5px 2% 5px 0;border-collapse:collapse;float:left;}
.cpxq .content table:nth-child(2n){margin-right:0;}
.cpxq .content table td,.cpxq .content table th{
    border:1px solid #fff !important;text-align:center;width:unset !important;background:unset !important;
    font-size: 14px;padding: 6px 0;line-height: 2;min-width: 100px;
}
.cpxq .content table tr:first-of-type{background:#046BA6;color:#fff;}
.cpxq .content table tr{background:#F9F9F9;}
.cpxq .content table tr:nth-of-type(2n){background:#F0F0F0;}
.cpxq .content h2{border:0;font-size:14px;height:auto;float:unset;margin:5px 0;font-weight:normal;}

.cpxq .content p span{
    text-wrap: initial!important;
    text-align: justify!important;
    }

.cpxq .content img {
    max-width: 100%;
}
.clearfix{clear:both;}

/* 行业解决方案提示部分 */
.solution-cta {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--accent-color) 100%);
    color: white;
    text-align: center;
    background-image: linear-gradient(rgba(10, 61, 110, 0.85), rgba(10, 61, 110, 0.8))/* , url('../images/laowai.jpg') */;
}

.solution-cta h2 {
    font-size: 36px;
    margin-bottom: 20px;
}

.solution-cta p {
    font-size: 18px;
    /* max-width: 700px; */
    margin: 0 auto 40px;
    opacity: 0.9;
}

.cta-btn {
    display: inline-block;
    background-color: var(--secondary-color);
    color: white;
    padding: 18px 45px;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 600;
    font-size: 18px;
    transition: all 0.3s;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.cta-btn:hover {
    background-color: #c0171c;
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}







/* 小屏幕缩放 */
/* @media  (max-width: 1400px) {html{zoom: 0.85;} } */

/* 响应式设计 */
@media (max-width: 1200px) {
    .products-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .footer-content {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 992px) {
    .about-content {
        grid-template-columns: 1fr;
    }
    
    .cap-content-wrapper {
        grid-template-columns: 1fr;
    }
    
    .cap-features {
        grid-template-columns: 1fr;
    }
    
    .hero-slider {
        height: 600px;
    }
    
    .slide-content h1 {
        font-size: 46px;
    }
}

@media (max-width: 768px) {
    .nav-container{padding:15px;}
    .mobile-toggle {
        display: block;
    }
    
    .nav-menu {
        position: fixed;
        top: 90px;
        left: -100%;
        width: 100%;
        flex-direction: column;
        background-color: white;
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
        padding: 30px;
        gap: 20px;
        transition: left 0.3s;
        z-index: 999;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .top-bar {
        display: none;
    }
    
    .products-grid {
        grid-template-columns: 1fr;
    }
    
    .tab-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .tab-btn {
        width: 100%;
        max-width: 300px;
    }
    
    .cap-tab-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .cap-tab-btn {
        width: 100%;
        max-width: 300px;
    }
    
    .hero-slider {
        height: 500px;
    }
    
    .slide-content h1 {
        font-size: 36px;
    }
    
    .slide-content p {
        font-size: 18px;
    }
    
    .btn {
        padding: 14px 30px;
        font-size: 16px;
    }
    .page-hero-content h1{font-size:24px;}
    .page-hero-content p{font-size:18px;}
    .table_con{overflow-x: auto;}
}

@media (max-width: 576px) {
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    .hero-slider {
        height: 450px;
    }
    
    .slide-content h1 {
        font-size: 32px;
    }
    
    .section-title {
        font-size: 36px;
    }

    .cpxxqh{width:100%;}
    .cpxx .info h1{font-size:24px;}
    .cpxx .info{width:100%;}
    .cpxq{margin-top:40px;}
}


/* 小屏幕缩放 - 使用标准的transform替代zoom */
@media (max-width: 1400px) {
  html {
    /* 使用scale缩放，origin确保从左上角开始缩放 */
    transform: scale(0.75);
    transform-origin: top left;
    /* 补偿scale导致的尺寸变化，保持视口占满 */
    width: calc(100% / 0.75);
    height: calc(100% / 0.75);
  }
}