/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Arial', sans-serif;
    line-height: 1.6;
    color: #333;
    overflow-x: hidden;
}

/* Navigation Bar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background-color: rgba(0, 0, 0, 0.3);
    /* backdrop-filter: blur(4px); */
    transition: all 0.3s ease;
}

.navbar:hover,
.navbar.scrolled {
    background-color: rgba(255, 255, 255, 0.9);
}

.nav-content {
    width: 100%;
    max-width: 1600px;
    margin: 0 auto;
    padding: 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 90px;
}

.nav-left .website-name {
    font-size: 35px;
    font-weight: bold;
    color: rgba(255, 255, 255, 1);
    text-decoration: none;
    transition: all 0.3s ease;
}

.navbar:hover .nav-left .website-name,
.navbar.scrolled .nav-left .website-name {
    color: #333;
}

.nav-right .nav-links {
    list-style: none;
    display: flex;
    gap: 20px;
}

.nav-right .nav-item {
    margin: 0;
}

.nav-right .nav-link {
    display: inline-block;
    padding: 10px 25px;
    color: white;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
}

.navbar:hover .nav-right .nav-link,
.navbar.scrolled .nav-right .nav-link {
    color: #333;
}

.nav-right .nav-link:hover {
    color: rgba(0, 117, 204, 1) !important;
}

.navbar:hover .nav-right .nav-link.active,
.navbar.scrolled .nav-right .nav-link.active {
    color: rgba(0, 117, 204, 1);
}

/* Banner Slider */
.banner-slider {
    position: relative;
    width: 100%;
    height: calc(100vh - 200px);
    overflow: hidden;
    cursor: grab;
}

.banner-slider:active {
    cursor: grabbing;
}

.slides-container {
    position: relative;
    width: 100%;
    height: 100%;
    display: flex;
    transition: transform 0.5s ease-in-out;
}

.slide {
    min-width: 100%;
    height: 100%;
    position: relative;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

/* Slide Backgrounds - Using local images */
/* .slide:nth-child(1) {
    background-image: url('../images/banner/banner1.jpg');
}

.slide:nth-child(2) {
    background-image: url('../images/banner/banner2.jpg');
}

.slide:nth-child(3) {
    background-image: url('../images/banner/banner3.jpg');
}

.slide:nth-child(4) {
    background-image: url('../images/banner/banner4.jpg');
} */

/* Slogan Area */
.slogan {
    position: absolute;
    top: 55%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    color: white;
    opacity: 0;
    animation: slideUp 1s ease-out 0.5s forwards;
    z-index: 10;
    pointer-events: none;
}

.slogan-line {
    margin: 10px 0;
    font-family: 'Arial', sans-serif;
    font-weight: bold;
}

.slogan-line:first-child,
.slogan-line:nth-child(3) {
    font-size: 30px;
    font-weight: bold;
    letter-spacing: 2px;
}

.slogan-line:nth-child(2) {
    font-size: 120px;
    font-weight: bold;
    color: #2ecc71;
    letter-spacing: 4px;
    margin: 0;
}

.read-more-btn {
    display: inline-block;
    margin-top: 50px;
    padding: 10px 30px;
    background-color: transparent;
    color: white;
    text-decoration: none;
    border: 2px solid white;
    border-radius: 0;
    font-size: 18px;
    transition: all 0.3s ease;
    cursor: pointer;
    pointer-events: auto;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.read-more-btn:hover {
    background-color: white;
    color: #333;
}

/* Animation for slogan entrance */
@keyframes slideUp {
    from {
        opacity: 0;
        transform: translate(-50%, 50%);
    }

    to {
        opacity: 1;
        transform: translate(-50%, -50%);
    }
}

/* Banner Controls */
.banner-controls {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 10px;
    z-index: 20;
}

.control-dot {
    width: 15px;
    height: 15px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.5);
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
    outline: none;
}

.control-dot.active {
    background-color: white;
    transform: scale(1.2);
}

/* 公司业务介绍区域 */
.business-stats {
    background-color: rgba(244, 250, 255, 1);
    padding: 50px 0;
}

.stats-container {
    max-width: 1600px;
    width: 90%;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
}

.stat-item {
    text-align: center;
    padding: 30px 20px;
    background-color: white;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.stat-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
}

.stat-title {
    font-size: 18px;
    color: #666;
    margin-top: auto;
    margin-bottom: 0;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
    padding-top: 20px;
}

.stat-value {
    font-size: 48px;
    font-weight: 700;
    color: rgba(0, 117, 204, 1);
    line-height: 1;
    display: inline;
}

.stat-unit {
    font-size: 16px;
    color: #000;
    font-weight: 400;
    display: inline;
    margin-left: 5px;
}

/* 响应式设计 - 业务介绍区域 */
@media (max-width: 1200px) {
    .stats-container {
        grid-template-columns: repeat(2, 1fr);
    }

    .stat-value {
        font-size: 40px;
    }
}

@media (max-width: 768px) {
    .business-stats {
        padding: 20px 0;
    }

    .stats-container {
        grid-template-columns: 1fr;
        gap: 15px;
    }

    .stat-value {
        font-size: 36px;
    }

    .stat-title {
        font-size: 16px;
    }
}

/* 关于我们区域 */
.about-section {
    background-image: url('../images/about-bg.jpeg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    padding: 100px 0 60px 0;
    position: relative;
    overflow: hidden;
}

.about-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(255, 255, 255, 0.9);
    z-index: 1;
}

.about-container {
    width: 90%;
    max-width: 1600px;
    margin: 0 auto;
    display: flex;
    gap: 40px;
    position: relative;
    z-index: 2;
}

.about-left {
    width: 50%;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.about-right {
    width: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.about-row {
    width: 100%;
}

.about-title-row .about-title {
    font-size: 60px;
    text-transform: uppercase;
    color: #333;
    margin: 0;
    font-weight: bold;
}

.company-name-row {
    position: relative;
    padding-left: 120px;
}

.company-name-row::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    width: 100px;
    height: 4px;
    background-color: #3498db;
    transform: translateY(-50%);
}

.company-name-row .company-name {
    font-size: 36px;
    color: #333;
    margin: 0;
    font-weight: 700;
}

.company-intro-row .company-intro {
    font-size: 18px;
    line-height: 1.8;
    color: #666;
    margin: 0;
    text-align: justify;
}

.learn-more-btn {
    display: inline-block;
    padding: 15px 40px;
    background-color: rgba(0, 117, 204, 1);
    color: white;
    text-decoration: none;
    font-size: 16px;
    font-weight: 600;
    border-radius: 50px;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.learn-more-btn:hover {
    background-color: #2980b9;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(52, 152, 219, 0.4);
}

.office-image {
    width: 100%;
    height: 600px;
    /* background-image: url('../images/office.jpg'); */
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    border-radius: 8px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

/* Responsive Design */
@media (max-width: 1200px) {
    .slogan-line:nth-child(2) {
        font-size: 80px;
    }

    .slogan-line:first-child,
    .slogan-line:nth-child(3) {
        font-size: 24px;
    }

    /* 关于我们区域响应式 */
    .about-title-row .about-title {
        font-size: 50px;
    }

    .company-name-row .company-name {
        font-size: 30px;
    }

    .company-intro-row .company-intro {
        font-size: 16px;
    }
}

@media (max-width: 992px) {

    /* 关于我们区域响应式 - 改为上下布局 */
    .about-container {
        flex-direction: column;
    }

    .about-left,
    .about-right {
        width: 100%;
    }

    .office-image {
        height: 300px;
    }
}

@media (max-width: 768px) {
    .nav-content {
        padding: 0 10px;
    }

    .nav-left .website-name {
        font-size: 20px;
    }

    .nav-right .nav-links {
        gap: 10px;
    }

    .nav-right .nav-link {
        padding: 8px 12px;
        font-size: 14px;
    }

    .slogan-line:first-child,
    .slogan-line:nth-child(3) {
        font-size: 18px;
    }

    .slogan-line:nth-child(2) {
        font-size: 48px;
    }

    .read-more-btn {
        padding: 12px 30px;
        font-size: 14px;
    }

    /* 关于我们区域响应式 */
    .about-section {
        padding: 30px 0;
    }

    .about-title-row .about-title {
        font-size: 40px;
    }

    .company-name-row .company-name {
        font-size: 24px;
    }
}

@media (max-width: 480px) {
    .nav-right .nav-links {
        gap: 5px;
    }

    .nav-right .nav-link {
        padding: 6px 10px;
        font-size: 12px;
    }

    .slogan-line:nth-child(2) {
        font-size: 36px;
    }

    .read-more-btn {
        padding: 10px 25px;
        font-size: 13px;
    }

    /* 关于我们区域响应式 */
    .about-title-row .about-title {
        font-size: 30px;
    }

    .company-name-row {
        padding-left: 30px;
    }

    .company-name-row::before {
        width: 20px;
    }
}

/* 产品介绍区域 */
.product-section {
    /* background-color: #333; */
    background-image: url('../images/about-bg.jpeg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    padding: 0;
    color: white;
    position: relative;
}

/* 上部：产品介绍说明 */
.product-intro {
    text-align: center;
    margin-bottom: 0;
    padding: 50px 0;
    background-color: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(5px);
    position: relative;
    z-index: 1;
}

.intro-line1 {
    font-size: 70px;
    font-weight: bold;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: white;
}

.intro-line2 {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 20px;
    color: white;
    position: relative;
    display: inline-block;
    padding-left: 120px;
}

.intro-line2::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    width: 100px;
    height: 2px;
    background-color: white;
    transform: translateY(-50%);
}

.intro-line3 {
    font-size: 16px;
    line-height: 1.8;
    color: white;
    max-width: 1200px;
    margin: 0 auto;
}

/* 下部：产品展示 */
.product-showcase {
    display: flex;
    overflow: hidden;
    gap: 10px;
    padding: 10px 0;
    background-color: rgba(255, 255, 255, 1);
}

.product-item {
    flex: 1;
    height: calc(500px - 40px);
    overflow: hidden;
    position: relative;
    transition: all 0.5s ease;
    background-color: white;
}

.product-image {
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    transition: transform 0.5s ease;
}

.product-name {
    position: absolute;
    bottom: 80px;
    left: 25%;
    transform: translateX(-25%);
    color: white;
    font-size: 32px;
    font-weight: bold;
    text-align: left;
    opacity: 0;
    animation: productNameSlideUp 1s ease-out 0.8s forwards;
    z-index: 10;
    /* border-radius: 4px;
    padding: 10px 20px;
    backdrop-filter: blur(5px);
    background-color: rgba(0, 0, 0, 0.5); */
}

/* Animation for product name entrance */
@keyframes productNameSlideUp {
    from {
        opacity: 0;
        transform: translate(-50%, 50px);
    }

    to {
        opacity: 1;
        transform: translate(-50%, 0);
    }
}

/* 产品展示悬停动画效果 */
.product-item:hover {
    flex: 1.2;
}

.product-item:hover .product-image {
    transform: scaleX(1.1);
    background-size: 110% auto;
}

/* 响应式设计 - 产品介绍区域 */
@media (max-width: 1200px) {
    .product-section {
        padding: 0;
    }

    .intro-line1 {
        font-size: 50px;
    }

    .intro-line2 {
        font-size: 30px;
    }

    .product-item {
        height: calc(400px - 40px);
    }

    .product-name {
        font-size: 20px;
    }
}

@media (max-width: 768px) {
    .product-section {
        padding: 0;
    }

    .intro-line1 {
        font-size: 40px;
    }

    .intro-line2 {
        font-size: 24px;
        padding-left: 40px;
    }

    .intro-line2::before {
        width: 30px;
    }

    .intro-line3 {
        font-size: 14px;
    }

    .product-showcase {
        gap: 10px;
        padding: 10px 0;
    }

    .product-item {
        height: 300px;
    }

    .product-name {
        font-size: 18px;
    }

    .product-item:hover {
        flex: 1;
    }

    .product-item:hover .product-image {
        transform: none;
        background-size: cover;
    }
}

@media (max-width: 480px) {
    .intro-line1 {
        font-size: 30px;
    }

    .intro-line2 {
        font-size: 20px;
        padding-left: 30px;
    }

    .intro-line2::before {
        width: 20px;
    }

    .product-item {
        height: 250px;
    }

    .product-name {
        font-size: 16px;
        padding: 8px 16px;
    }
}

/* 我们的优势区域 */
.our-advantages {
    /* background-image: url('../images/about-bg.jpeg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat; */
    padding: 0;
    position: relative;
    background-color: rgba(244, 250, 255, 1);
}

/* 上部：我们的优势说明 */
.advantages-intro {
    text-align: center;
    margin-bottom: 0;
    padding: 50px 0;
    backdrop-filter: blur(5px);
    position: relative;
    z-index: 1;
}

.advantages-intro .intro-line1,
.advantages-intro .intro-line2 {
    color: #000;
}

.advantages-intro .intro-line2::before {
    background-color: #000;
}

/* 下部：优势展示 */
.advantages-showcase {
    position: relative;
    height: 500px;
    overflow: hidden;
    display: flex;
    align-items: center;
    width: 90%;
    max-width: 1600px;
    margin: 0 auto;
}

.advantages-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('../images/about-bg.jpeg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    z-index: 0;
    transition: background-image 0.5s ease-in-out;
}

/* 左边：优势说明 */
.advantages-left {
    position: relative;
    z-index: 1;
    width: 65%;
    padding: 0 50px;
    color: white;
}

.advantage-eng {
    font-size: 32px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 10px;
    transition: all 0.5s ease;
}

.advantage-cn {
    font-size: 60px;
    font-weight: 700;
    margin-bottom: 30px;
    position: relative;
    display: inline-block;
    padding-left: 0;
    transition: all 0.5s ease;
}

.advantage-cn::before {
    display: none;
}

.advantage-desc {
    font-size: 16px;
    line-height: 1.8;
    margin-bottom: 40px;
    max-width: 600px;
    transition: all 0.5s ease;
}

.advantage-btn {
    display: inline-block;
    padding: 10px 25px;
    background-color: transparent;
    color: white;
    text-decoration: none;
    border: 2px solid white;
    border-radius: 50px;
    font-size: 14px;
    font-weight: 600;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.advantage-btn:hover {
    background-color: white;
    color: #333;
}

/* 右边：四行区域 */
.advantages-right {
    position: relative;
    z-index: 1;
    width: 35%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(5px);
    display: flex;
    flex-direction: column;
    justify-content: space-around;
    align-items: center;
    box-sizing: border-box;
}

.advantage-item {
    font-size: 24px;
    font-weight: bold;
    color: white;
    text-align: center;
    padding: 20px 0;
    width: 100%;
    border-bottom: 1px solid rgba(255, 255, 255, 0.3);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    height: 25%;
}

.advantage-item:last-child {
    border-bottom: none;
}

.advantage-icon {
    width: 48px;
    height: 48px;
    display: block;
    object-fit: contain;
}

.advantage-text {
    font-size: 18px;
    font-weight: normal;
    display: block;
}

/* 响应式设计 - 我们的优势区域 */
@media (max-width: 1200px) {
    .advantages-showcase {
        height: 500px;
    }

    .advantage-eng {
        font-size: 24px;
    }

    .advantage-cn {
        font-size: 48px;
    }

    .advantage-desc {
        font-size: 14px;
    }

    .advantage-item {
        font-size: 20px;
    }
}

@media (max-width: 768px) {
    .advantages-showcase {
        flex-direction: column;
        height: auto;
    }

    .advantages-left,
    .advantages-right {
        width: 100%;
    }

    .advantages-left {
        padding: 50px 20px;
        text-align: center;
    }

    .advantages-right {
        height: auto;
        padding: 30px 20px;
    }

    .advantage-item {
        padding: 15px 0;
        font-size: 18px;
        height: auto;
    }

    .advantage-icon {
        width: 36px;
        height: 36px;
        margin-bottom: 8px;
    }

    .advantage-text {
        font-size: 18px;
    }

    .advantage-eng {
        font-size: 20px;
    }

    .advantage-cn {
        font-size: 36px;
        padding-left: 0;
        margin-bottom: 20px;
    }

    .advantage-cn::before {
        display: none;
    }
}

@media (max-width: 480px) {
    .advantage-eng {
        font-size: 18px;
    }

    .advantage-cn {
        font-size: 30px;
    }

    .advantage-btn {
        padding: 12px 30px;
        font-size: 14px;
    }
}

/* 新闻资讯区域 */
.news-section {
    padding: 0;
    position: relative;
    background-image: url('../images/about-bg.jpeg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

.news-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(255, 255, 255, 0.7);
    z-index: 0;
}

/* 上部：新闻资讯说明 */
.news-intro {
    text-align: center;
    padding: 50px 0;
    position: relative;
    z-index: 1;
    background-color: rgba(255, 255, 255, 0.7);
}

.news-intro .intro-line1,
.news-intro .intro-line2 {
    color: #000;
}

.news-intro .intro-line2::before {
    background-color: #000;
}

/* 下部：新闻展示 */
.news-showcase {
    width: 90%;
    max-width: 1600px;
    display: flex;
    gap: 20px;
    padding: 40px 0;
    position: relative;
    margin: 0 auto;
    z-index: 1;
}

.news-showcase .news-item {
    position: relative;
    z-index: 1;
    width: calc(33.333% - 10px);
}

/* 新闻项 */
.news-item {
    background-color: white;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    border-radius: 8px;
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

/* 调整第一个和最后一个新闻项的间距 */
.news-showcase .news-item:first-child {
    margin-left: 0;
}

.news-showcase .news-item:last-child {
    margin-right: 0;
}

.news-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
}

/* 新闻图片 */
.news-image {
    width: 100%;
    height: 330px;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

/* 新闻内容 */
.news-content {
    padding: 20px;
}

/* 新闻日期 */
.news-date {
    font-size: 14px;
    color: #999;
    margin-bottom: 10px;
    display: block;
}

/* 新闻标题 */
.news-title {
    font-size: 20px;
    font-weight: bold;
    color: #333;
    margin-bottom: 15px;
    display: block;
}

/* 新闻摘要 */
.news-excerpt {
    font-size: 14px;
    line-height: 1.6;
    color: #666;
    margin-bottom: 20px;
    display: block;
    display: -webkit-box;
    -webkit-line-clamp: 1;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* 查看更多链接 */
.news-more {
    display: inline-block;
    color: #0075cc;
    text-decoration: none;
    font-size: 14px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.news-more:hover {
    color: #005fa3;
    text-decoration: underline;
}

/* 新闻垂直布局 */
.news-showcase .news-item.vertical-layout {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
    width: 100%;
    margin-bottom: 20px;
    overflow: hidden;
}

/* 新闻垂直布局 - 左侧内容 */
.news-item.vertical-layout .news-content-left {
    flex: 1;
    padding-right: 40px;
}

/* 新闻垂直布局 - 左侧标题 */
.news-item.vertical-layout .news-content-left .news-title {
    font-size: 20px;
    line-height: 1.3;
}

/* 新闻垂直布局 - 左侧摘要 */
.news-item.vertical-layout .news-content-left .news-excerpt {
    font-size: 16px;
    -webkit-line-clamp: 2;
}

/* 新闻垂直布局 - 右侧内容 */
.news-item.vertical-layout .news-content-right {
    text-align: center;
    position: relative;
    min-width: 80px;
}

/* 新闻垂直布局 - 右侧日期 */
.news-item.vertical-layout .news-content-right .news-date {
    font-size: 16px;
    color: #999;
    display: block;
}

/* 新闻垂直布局 - 右侧编号 */
.news-item.vertical-layout .news-content-right .news-number {
    font-size: 60px;
    font-weight: bold;
    color: rgba(0, 117, 204, 0.4);
    line-height: 1;
    display: block;
    text-align: center;
}

/* 响应式设计 - 新闻资讯区域 */
/* 新闻展示容器通用响应式 */
@media (max-width: 1200px) {
    /* 仅适用于非垂直布局的新闻展示 */
    .news-showcase {
        flex-wrap: wrap;
    }
    
    /* 仅适用于网格布局的新闻项 */
    .news-showcase .news-item:not(.vertical-layout) {
        width: calc(50% - 10px);
    }
}

@media (max-width: 768px) {
    /* 仅适用于非垂直布局的新闻展示 */
    .news-showcase {
        gap: 20px;
        flex-direction: row;
    }

    /* 仅适用于网格布局的新闻项 */
    .news-showcase .news-item:not(.vertical-layout) {
        width: 100%;
    }
    
    /* 垂直布局新闻展示特殊处理 */
    .news-showcase[style*="flex-direction: column"] {
        flex-direction: column;
    }

    .news-intro {
        margin-bottom: 30px;
        padding: 30px 0;
    }

    /* 仅适用于网格布局的新闻展示 */
    .news-showcase {
        padding: 0 0 40px 0;
    }
    
    /* 垂直布局新闻展示特殊处理 */
    .news-showcase[style*="flex-direction: column"] {
        padding: 20px 0;
        gap: 0;
    }

    /* 新闻垂直布局响应式 */
    .news-item.vertical-layout {
        padding: 25px;
        flex-direction: column;
        align-items: flex-start;
    }

    .news-item.vertical-layout .news-content-left {
        padding-right: 0;
        margin-bottom: 20px;
    }

    .news-item.vertical-layout .news-content-left .news-title {
        font-size: 20px;
    }

    .news-item.vertical-layout .news-content-left .news-excerpt {
        font-size: 14px;
    }

    .news-item.vertical-layout .news-content-right {
        text-align: left;
        width: 100%;
        position: relative;
    }

    .news-item.vertical-layout .news-content-right .news-number {
        font-size: 48px;
        position: absolute;
        right: 0;
        top: -20px;
        opacity: 0.05;
    }
}

@media (max-width: 480px) {
    .news-image {
        height: 150px;
    }
    
    /* 新闻展示容器移动端响应式 */
    .news-showcase {
        width: 100%;
        gap: 20px;
    }
    
    /* 垂直布局新闻展示特殊处理 */
    .news-showcase[style*="flex-direction: column"] {
        padding: 10px 0;
        gap: 0;
    }
}

/* 页脚区域 */
.footer-section {
    background-color: rgba(0, 78, 162, 1);
    color: white;
    padding: 40px 0 20px 0;
    position: relative;
}

.footer-container {
    width: 90%;
    max-width: 1600px;
    margin: 0 auto;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: flex-start;
    gap: 60px;
}

/* 左侧：logo和二维码 */
.footer-left {
    flex: 0 0 auto;
    text-align: left;
}

.footer-logo {
    font-size: 32px;
    font-weight: bold;
    display: block;
}

.footer-qrcode {
    display: flex;
    gap: 30px;
    margin-top: 20px;
}

.qrcode-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.footer-qrcode img {
    display: block;
    background-color: white;
    border-radius: 8px;
    width: 120px;
    height: 120px;
    margin-bottom: 10px;
}

.footer-qrcode p {
    font-size: 14px;
    margin: 0;
    color: #666;
}

/* 中间：导航链接 */
.footer-nav {
    flex: 0 1 auto;
    display: flex;
    gap: 80px;
    flex-wrap: wrap;
    margin-top: 15px;
    justify-content: center;
}

.nav-column h4 {
    font-size: 16px;
    font-weight: bold;
    margin-bottom: 15px;
    padding-bottom: 5px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.3);
}

.nav-column ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.nav-column ul li {
    margin-bottom: 10px;
}

.nav-column ul li a {
    color: white;
    text-decoration: none;
    font-size: 14px;
    transition: opacity 0.3s ease;
}

.nav-column ul li a:hover {
    opacity: 0.8;
}

/* 右侧：联系信息 */
.footer-contact {
    flex: 0 0 auto;
    text-align: left;
    margin-top: 15px;
}

.footer-contact h4 {
    font-size: 18px;
    font-weight: bold;
    margin-bottom: 15px;
    padding-bottom: 5px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.3);
}

.footer-contact p {
    font-size: 14px;
    line-height: 1.8;
    margin: 0 0 10px 0;
}

/* 底部：版权信息 */
.footer-bottom {
    width: 90%;
    max-width: 1600px;
    margin: 30px auto 0 auto;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.3);
    text-align: center;
    font-size: 12px;
    opacity: 0.8;
}

.footer-bottom p {
    margin: 5px 0;
}

/* 响应式设计 - 页脚 */
@media (max-width: 1200px) {
    .footer-container {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }

    .footer-nav {
        justify-content: center;
        gap: 40px;
        flex-wrap: wrap;
    }

    .nav-column {
        flex: 0 0 180px;
    }
    
    .footer-left,
    .footer-contact {
        width: 100%;
        text-align: center;
        margin-bottom: 30px;
    }
    
    .footer-qrcode {
        margin: 20px auto 0;
        display: flex;
        justify-content: center;
    }
}

@media (max-width: 992px) {
    .footer-nav {
        gap: 30px;
    }
    
    .nav-column {
        flex: 0 0 150px;
    }
}

@media (max-width: 768px) {
    .footer-section {
        padding: 30px 0 15px 0;
    }
    
    .footer-container {
        gap: 30px;
    }
    
    .footer-nav {
        flex-direction: row;
        flex-wrap: wrap;
        gap: 15px;
        justify-content: center;
    }

    .nav-column {
        flex: 1;
        min-width: 75px;
        margin-bottom: 20px;
        text-align: center;
    }
    
    .nav-column h4 {
        font-size: 16px;
        margin-bottom: 15px;
        padding-bottom: 10px;
    }
    
    .nav-column ul li {
        margin-bottom: 8px;
    }
    
    .nav-column ul li a {
        font-size: 13px;
    }
    
    .footer-left {
        margin-bottom: 0;
    }
    
    .footer-logo {
        font-size: 24px;
        margin-bottom: 20px;
    }
    
    .footer-qrcode img {
        width: 80px;
        height: 80px;
    }
    
    .footer-qrcode p {
        font-size: 12px;
    }
    
    .footer-qrcode {
        gap: 20px;
    }
    
    .footer-contact {
        margin-bottom: 0;
    }
    
    .footer-contact h4 {
        font-size: 16px;
        margin-bottom: 15px;
    }
    
    .footer-contact p {
        font-size: 13px;
        line-height: 1.6;
        margin-bottom: 8px;
    }
    
    .footer-bottom {
        margin-top: 25px;
        padding-top: 15px;
    }
    
    .footer-bottom p {
        font-size: 11px;
        margin: 4px 0;
    }
}

@media (max-width: 480px) {
    .footer-section {
        padding: 20px 0 10px 0;
    }
    
    .footer-container {
        gap: 10px;
        width: 95%;
    }
    
    .footer-nav {
        gap: 20px;
    }
    
    .nav-column h4 {
        font-size: 15px;
        margin-bottom: 12px;
    }
    
    .nav-column ul li a {
        font-size: 12px;
    }
    
    .footer-logo {
        font-size: 20px;
        margin-bottom: 15px;
    }
    
    .footer-qrcode img {
        width: 70px;
        height: 70px;
    }
    
    .footer-contact p {
        font-size: 12px;
    }
    
    .footer-bottom {
        margin-top: 20px;
        padding-top: 12px;
    }
    
    .footer-bottom p {
        font-size: 10px;
        margin: 3px 0;
    }
}

/* Common Styles */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Hide text that should be accessible but not visible */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* 面包屑导航样式 */
.breadcrumb {
    background-color: #f5f5f5;
    padding: 15px 0;
    border-bottom: 1px solid #eee;
}

.breadcrumb-container {
    width: 90%;
    max-width: 1600px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: #666;
}

.breadcrumb-item {
    color: #666;
    text-decoration: none;
    transition: color 0.3s ease;
}

.breadcrumb-item:hover {
    color: #0075cc;
}

.breadcrumb-item.active {
    color: #333;
    font-weight: 500;
}

.breadcrumb-separator {
    color: #999;
    font-size: 12px;
}

/* 响应式设计 - 面包屑导航 */
@media (max-width: 768px) {
    .breadcrumb {
        padding: 10px 0;
    }

    .breadcrumb-container {
        font-size: 12px;
        gap: 5px;
    }
}

/* 产品列表区域样式 */
.products-section {
    padding: 30px 0;
    background-color: #f9f9f9;
}

.products-container {
    width: 90%;
    max-width: 1600px;
    margin: 0 auto;
    display: flex;
    gap: 30px;
}

/* 左侧：产品分类 */
.products-sidebar {
    flex: 0 0 300px;
    background-color: white;
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    overflow: hidden;
}

.sidebar-title {
    background-color: #004ea2;
    color: white;
    padding: 15px 20px;
    font-size: 18px;
    font-weight: bold;
    margin: 0;
}

.category-list {
    list-style: none;
    padding: 0;
    margin: 20px 0 0 0;
}

.category-item {
    border-bottom: 1px solid #f0f0f0;
}

.category-item:last-child {
    border-bottom: none;
}

.category-link {
    display: block;
    padding: 15px 20px;
    color: #333;
    text-decoration: none;
    font-size: 14px;
    transition: all 0.3s ease;
}

.category-item.active .category-link {
    background-color: #f0f8ff;
    color: #0075cc;
    font-weight: 500;
}

.category-link:hover {
    background-color: #f5f5f5;
    color: #0075cc;
}

/* 左侧联系信息 */
.sidebar-contact {
    margin-top: 20px;
    background-color: #004ea2;
    color: white;
}

.contact-image {
    width: 100%;
    height: 150px;
    overflow: hidden;
}

.contact-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.contact-info {
    padding: 20px;
}

.contact-title {
    font-size: 14px;
    margin-bottom: 10px;
    opacity: 0.9;
}

.contact-phone {
    font-size: 24px;
    font-weight: bold;
    margin-bottom: 15px;
}

.contact-btn {
    display: inline-block;
    padding: 10px 20px;
    background-color: white;
    color: #004ea2;
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    border-radius: 5px;
    transition: all 0.3s ease;
}

.contact-btn:hover {
    background-color: #f0f0f0;
    transform: translateY(-2px);
}

/* 右侧：产品展示 */
.products-main {
    flex: 1;
    background-color: white;
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    padding: 30px;
}

.products-title {
    font-size: 24px;
    font-weight: bold;
    color: #333;
    margin: 0 0 30px 0;
}

/* 产品网格 */
.products-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.product-card {
    background-color: white;
    border: 1px solid #f0f0f0;
    border-radius: 8px;
    overflow: hidden;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
}

.product-card:hover {
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
    transform: translateY(-5px);
}

.product-card-img-container {
    padding: 20px;
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: #fafafa;
    min-height: 250px;
}

.product-card-img {
    max-width: 100%;
    max-height: 200px;
    object-fit: contain;
    transition: transform 0.3s ease;
}

.product-card:hover .product-card-img {
    transform: scale(1.05);
}

.product-card-name {
    padding: 15px 20px;
    text-align: center;
    font-size: 16px;
    font-weight: 500;
    color: #333;
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* 响应式设计 - 产品列表 */
@media (max-width: 1024px) {
    .products-container {
        flex-direction: column;
    }

    .products-sidebar {
        flex: 0 0 auto;
    }

    .products-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .products-main {
        padding: 20px;
    }

    .products-title {
        font-size: 20px;
        margin-bottom: 20px;
    }

    .products-grid {
        grid-template-columns: 1fr;
        gap: 15px;
    }

    .product-card-img-container {
        padding: 15px;
        min-height: 200px;
    }

    .product-card-img {
        max-height: 150px;
    }

    .product-card-name {
        padding: 12px 15px;
        font-size: 14px;
    }
}

/* 联系我们页面样式 */
.contact-section {
    padding: 50px 0;
}

/* 联系方式 */
.contact-showcase {
    width: 100%;
    max-width: 1600px;
    display: flex;
    position: relative;
    margin: 0 auto;
    z-index: 1;
    overflow: hidden;
}

/* 联系信息 */
.contact-info {
    flex: 0 0 45%;
    background-color: #004ea2;
    padding: 30px;
    color: white;
    flex-direction: column;
    justify-content: center;
}

.contact-info h3 {
    font-size: 24px;
    font-weight: bold;
    color: white;
    margin-bottom: 20px;
    padding-bottom: 20px;
    border-bottom: 2px solid white;
}

.contact-info p {
    font-size: 16px;
    line-height: 2.5;
    color: white;
}

.contact-info p strong {
    color: white;
    font-weight: 400;
}

/* 二维码容器 */
.contact-qrcodes {
    display: flex;
    gap: 40px;
    margin-top: 30px;
}

/* 单个二维码 */
.qrcode-item {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.qrcode-item img {
    width: 120px;
    height: 120px;
    background-color: white;
    padding: 0px;
    border-radius: 8px;
    margin-bottom: 15px;
}

.qrcode-item p {
    font-size: 16px;
    color: white;
    margin: 0;
    text-align: center;
}

/* 联系地图 */
.contact-map {
    flex: 1;
    position: relative;
    overflow: hidden;
}

.contact-map img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

/* 联系我们页面响应式设计 */
@media (max-width: 1200px) {
    .contact-showcase {
        width: 90%;
        height: 500px;
    }
    
    .contact-info {
        flex: 0 0 50%;
        padding: 50px 30px;
    }
    
    .contact-info h3 {
        font-size: 24px;
        margin-bottom: 30px;
    }
    
    .contact-info p {
        font-size: 16px;
        line-height: 2;
    }
    
    .contact-qrcodes {
        gap: 30px;
        margin-top: 30px;
    }
    
    .qrcode-item img {
        width: 100px;
        height: 100px;
    }
}

@media (max-width: 992px) {
    .contact-showcase {
        width: 90%;
        flex-direction: column;
        height: auto;
    }
    
    .contact-info {
        flex: 0 0 auto;
        width: 100%;
        padding: 40px 30px;
    }
    
    .contact-map {
        height: 400px;
    }
    
    .contact-qrcodes {
        justify-content: center;
    }
}

@media (max-width: 768px) {
    .contact-info {
        padding: 30px 25px;
    }
    
    .contact-info h3 {
        font-size: 22px;
        margin-bottom: 25px;
    }
    
    .contact-info p {
        font-size: 16px;
        line-height: 1.8;
        margin-bottom: 20px;
    }
    
    .contact-qrcodes {
        gap: 20px;
        margin-top: 25px;
    }
    
    .qrcode-item img {
        width: 90px;
        height: 90px;
    }
    
    .qrcode-item p {
        font-size: 14px;
    }
    
    .contact-map {
        height: 350px;
    }
}

@media (max-width: 480px) {
    .contact-info {
        padding: 25px 20px;
    }
    
    .contact-info h3 {
        font-size: 20px;
        margin-bottom: 20px;
    }
    
    .contact-info p {
        font-size: 14px;
        line-height: 1.6;
        margin-bottom: 15px;
    }
    
    .contact-qrcodes {
        gap: 15px;
        margin-top: 20px;
    }
    
    .qrcode-item img {
        width: 80px;
        height: 80px;
    }
    
    .qrcode-item p {
        font-size: 12px;
    }
    
    .contact-map {
        height: 300px;
    }
}



/* 在线留言页面样式 */
.message-section {
    padding: 50px 0;
}

.message-container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    background-color: white;
    padding: 50px;
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.message-title {
    font-size: 32px;
    font-weight: bold;
    color: #333;
    margin-bottom: 30px;
    text-align: center;
    padding-bottom: 20px;
    border-bottom: 2px solid #0075cc;
}

/* 消息提示 */
.success-message,
.error-message {
    padding: 15px 20px;
    border-radius: 4px;
    margin-bottom: 30px;
    font-size: 16px;
    text-align: center;
}

.success-message {
    background-color: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.error-message {
    background-color: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

/* 留言表单 */
.message-form {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.form-row {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.form-group {
    flex: 1;
    min-width: 250px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group.full-width {
    flex: 1 1 100%;
    min-width: 100%;
}

.form-group label {
    font-size: 16px;
    font-weight: 600;
    color: #333;
}

.form-group .required {
    color: #dc3545;
    font-size: 14px;
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 15px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 16px;
    color: #333;
    transition: all 0.3s ease;
    background-color: #f9f9f9;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #0075cc;
    background-color: white;
    box-shadow: 0 0 0 2px rgba(0, 117, 204, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 150px;
}

.form-actions {
    display: flex;
    justify-content: center;
    margin-top: 10px;
}

.submit-btn {
    display: inline-block;
    padding: 15px 50px;
    background-color: rgba(0, 117, 204, 1);
    color: white;
    text-decoration: none;
    font-size: 18px;
    font-weight: 600;
    border: none;
    border-radius: 50px;
    cursor: pointer;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.submit-btn:hover {
    background-color: #005fa3;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(52, 152, 219, 0.4);
}

/* 在线留言页面响应式设计 */
@media (max-width: 1200px) {
    .message-container {
        padding: 40px;
    }
    
    .message-title {
        font-size: 28px;
    }
}

@media (max-width: 992px) {
    .message-container {
        padding: 35px;
    }
    
    .form-row {
        flex-direction: column;
        gap: 20px;
    }
    
    .form-group {
        flex: 1 1 100%;
        min-width: 100%;
    }
}

@media (max-width: 768px) {
    .message-section {
        padding: 40px 0;
    }
    
    .message-container {
        width: 90%;
        padding: 30px 25px;
    }
    
    .message-title {
        font-size: 24px;
        margin-bottom: 25px;
        padding-bottom: 15px;
    }
    
    .success-message,
    .error-message {
        padding: 12px 15px;
        font-size: 14px;
        margin-bottom: 25px;
    }
    
    .form-group input,
    .form-group select,
    .form-group textarea {
        padding: 12px;
        font-size: 14px;
    }
    
    .submit-btn {
        padding: 12px 40px;
        font-size: 16px;
    }
}

@media (max-width: 480px) {
    .message-section {
        padding: 30px 0;
    }
    
    .message-container {
        width: 98%;
        padding: 20px 15px;
    }
    
    .message-title {
        font-size: 20px;
        margin-bottom: 20px;
    }
    
    .form-group label {
        font-size: 14px;
    }
    
    .form-group input,
    .form-group select,
    .form-group textarea {
        padding: 10px;
        font-size: 13px;
    }
    
    .submit-btn {
        padding: 10px 30px;
        font-size: 14px;
    }
}

/* 标签式布局样式 - 仅用于关于我们页面 */
.about-page-tabs {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 20px;
    border-bottom: 1px solid #eee;
    padding-bottom: 10px;
}

.tab-btn {
    background: none;
    border: none;
    padding: 10px 20px;
    font-size: 16px;
    font-weight: 500;
    color: #666;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    text-decoration: none;
}

.tab-btn.active {
    color: #0075cc;
    font-weight: bold;
}

.tab-btn.active::after {
    content: '';
    position: absolute;
    bottom: -11px;
    left: 0;
    width: 100%;
    height: 3px;
    background-color: #0075cc;
}

.tab-btn:hover {
    color: #0075cc;
}

/* 标签内容 */
.tab-content {
    display: none;
    width: 90%;
    max-width: 1600px;
    margin: 0 auto;
}

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

/* 业务内容布局 */
.business-content {
    display: flex;
    gap: 40px;
    align-items: flex-start;
}

.business-text {
    flex: 1;
    font-size: 16px;
    line-height: 1.8;
    color: #666;
}

.business-text h2 {
    font-size: 24px;
    font-weight: bold;
    color: #333;
    margin-bottom: 20px;
}

.business-text p {
    margin-bottom: 10px;
}

.business-image {
    flex: 1;
    max-width: 100%;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    align-items: start;
}

/* 图片项容器 */
.image-item {
    display: flex;
    flex-direction: column;
    gap: 10px;
    background-color: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
}

/* 图片标题 */
.image-caption {
    padding: 10px 15px;
    font-size: 14px;
    font-weight: 500;
    color: #333;
    text-align: center;
    background-color: white;
    border-radius: 0 0 8px 8px;
}

/* 图片项悬停效果 */
.image-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
}

/* 当文字和图片同时存在时，图片区域保持合适宽度 */
.business-text + .business-image {
    flex: 0 0 50%;
    max-width: 600px;
    grid-template-columns: 1fr;
}

/* 当只有图片时，容器使用100%宽度 */
.business-content > .business-image:only-child {
    flex: 1;
    max-width: 100%;
}

/* 响应式调整列数 */
@media (max-width: 1200px) {
    .business-image {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .business-image {
        grid-template-columns: 1fr;
    }
    
    /* 文字和图片同时存在时，在移动端单列显示 */
    .business-text + .business-image {
        flex: 1;
        max-width: 100%;
    }
}

.business-image img {
    width: 100%;
    height: auto;
    object-fit: cover;
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    display: block;
}

/* 单张图片特殊处理 */
.business-image img:only-child {
    width: 100%;
    max-width: 100%;
}

.business-image img:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
}

/* 响应式设计 - 标签布局 */
@media (max-width: 1200px) {
    .about-page-tabs {
        gap: 15px;
    }

    .tab-btn {
        padding: 10px 18px;
        font-size: 15px;
    }
}

@media (max-width: 768px) {
    .about-page-tabs {
        flex-wrap: wrap;
        gap: 10px;
    }

    .tab-btn {
        padding: 8px 15px;
        font-size: 14px;
    }

    .business-content {
        flex-direction: column;
        gap: 20px;
    }

    .business-image {
        flex: 0 0 100%;
        max-width: 100%;
    }

    .business-text h2 {
        font-size: 20px;
    }

    .business-text {
        font-size: 14px;
    }

    /* 新闻展示区域响应式 */
    .news-showcase {
        width: 100%;
        gap: 30px;
    }

    /* 垂直布局新闻展示特殊处理 */
    .news-showcase[style*="flex-direction: column"] {
        padding: 20px 0;
        gap: 0;
    }

    /* 新闻项响应式 */
    .news-item.vertical-layout {
        padding: 25px;
    }
    
    /* advantages-intro 响应式 */
    .advantages-intro {
        padding: 30px 0;
    }
    
    /* learn-more-btn 响应式 */
    .learn-more-btn {
        padding: 12px 30px;
        font-size: 14px;
    }
    
    /* product-intro 响应式 */
    .product-intro {
        padding: 30px 0;
    }
}

@media (max-width: 480px) {
    .about-page-tabs {
        gap: 8px;
    }

    .tab-btn {
        padding: 6px 12px;
        font-size: 12px;
    }

    /* 新闻展示区域响应式 */
    .news-showcase {
        width: 100%;
        gap: 30px;
    }

    /* 垂直布局新闻展示特殊处理 */
    .news-showcase[style*="flex-direction: column"] {
        padding: 10px 0;
        gap: 0;
    }

    /* 新闻项响应式 */
    .news-item.vertical-layout {
        padding: 15px;
    }
    
    /* advantages-intro 响应式 */
    .advantages-intro {
        padding: 30px 0;
    }
    
    /* learn-more-btn 响应式 */
    .learn-more-btn {
        padding: 10px 25px;
        font-size: 13px;
        letter-spacing: 0.5px;
    }
    
    /* product-intro 响应式 */
    .product-intro {
        padding: 30px 0;
    }

    /* 分页响应式 */
    .pagination {
        gap: 2px;
    }

    .pagination a {
        padding: 4px 8px;
        font-size: 12px;
        min-width: 28px;
    }
}

/* 分页 */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 30px 0;
    gap: 3px;
}

.pagination a {
    display: inline-block;
    padding: 6px 10px;
    color: #666;
    text-decoration: none;
    border: 1px solid #ddd;
    min-width: 32px;
    text-align: center;
    transition: all 0.3s ease;
}

.pagination a:hover,
.pagination a.active {
    color: #fff;
    background: #004ea2;
    border-color: #004ea2;
}

.pagination .page-info {
    margin-left: 8px;
    color: #999;
    padding: 6px 10px;
    border: 1px solid #ddd;
}