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

/* 全局图片样式重置 */
img {
    max-width: 100%;
    height: auto;
    display: block;
}

.img-fluid {
    max-width: 100%;
    height: auto;
}

body {
    font-family: 'PingFang SC', 'Microsoft YaHei', -apple-system, BlinkMacSystemFont, sans-serif;
    line-height: 1.6;
    color: #333;
    background: #fff;
}

.container {
    width: 95%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.top-bar {
    background: #0a0a0a;
    padding: 10px 0;
    font-size: 13px;
    color: #aaa;
}

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

.top-bar-left {
    display: flex;
    gap: 30px;
}

.top-bar-item {
    display: flex;
    align-items: center;
    gap: 6px;
}

.top-bar-item i {
    color: #0066cc;
}

.top-bar-right {
    display: flex;
    gap: 20px;
}

.top-bar-right a {
    color: #aaa;
    text-decoration: none;
    transition: color 0.3s;
}

.top-bar-right a:hover {
    color: #0066cc;
}

.top-bar-right .language-switch {
    background: rgba(255, 255, 255, 0.1);
    padding: 4px 12px;
    border-radius: 15px;
}

.top-bar-right .language-switch + .language-switch {
    margin-left: 8px;
}

.top-bar-right .language-switch:hover {
    background: rgba(255, 255, 255, 0.2);
    color: #0066cc;
}

header {
    background: #fff;
    border-bottom: 1px solid #e8e8e8;
    position: sticky;
    top: 0;
    z-index: 1000;
}

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

.logo h1 {
    font-size: 26px;
    color: #111;
    font-weight: 700;
    letter-spacing: 0.5px;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 0;
}

.nav-links > li {
    position: relative;
}

.nav-links > li > a {
    display: block;
    padding: 12px 22px;
    text-decoration: none;
    color: #333;
    font-weight: 500;
    font-size: 15px;
    transition: all 0.3s;
}

.nav-links > li > a:hover,
.nav-links > li > a.active {
    color: #0066cc;
}

.nav-dropdown {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    background: #fff;
    min-width: 220px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.12);
    padding: 12px 0;
    z-index: 100;
}

.nav-links > li:hover .nav-dropdown {
    display: block;
}

.nav-dropdown li {
    list-style: none;
}

.nav-dropdown a {
    display: block;
    padding: 10px 24px;
    color: #555;
    text-decoration: none;
    font-size: 14px;
    transition: all 0.3s;
}

.nav-dropdown a:hover {
    color: #0066cc;
    background: #f8f9fa;
}

.nav-right {
    display: flex;
    align-items: center;
    gap: 20px;
}

.language-switcher {
    display: flex;
    align-items: center;
    gap: 8px;
    background: #f8f9fa;
    border-radius: 8px;
    padding: 4px;
    border: 1px solid #e8e8e8;
}

.lang-btn {
    padding: 6px 16px;
    text-decoration: none;
    color: #333;
    font-size: 14px;
    font-weight: 500;
    border-radius: 6px;
    transition: all 0.3s ease;
}

.lang-btn:hover {
    background: #e9ecef;
}

.lang-btn.active {
    background: #0066cc;
    color: #fff;
    box-shadow: 0 2px 4px rgba(0,102,204,0.2);
}

.menu-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 5px;
}

.menu-toggle span {
    width: 28px;
    height: 3px;
    background: #333;
    border-radius: 2px;
    transition: all 0.3s;
}

.hero {
    position: relative;
    height: 600px;
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><rect x="0" y="0" width="100" height="100" fill="none" stroke="rgba(255,255,255,0.03)" stroke-width="0.5"/><line x1="0" y1="50" x2="100" y2="50" stroke="rgba(255,255,255,0.05)" stroke-width="0.5"/><line x1="50" y1="0" x2="50" y2="100" stroke="rgba(255,255,255,0.05)" stroke-width="0.5"/></svg>');
    background-size: 60px 60px;
    z-index: 1;
}

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

.hero-image-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    z-index: 0;
}

.hero-image-bg::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.4);
}

.hero-content {
    position: relative;
    z-index: 1;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: flex-start;
    color: #fff;
    padding-left: 50px;
}

.hero-content h2 {
    font-size: 52px;
    font-weight: 700;
    margin-bottom: 20px;
    line-height: 1.2;
}

.hero-content p {
    font-size: 18px;
    margin-bottom: 40px;
    max-width: 600px;
    opacity: 0.85;
    line-height: 1.8;
}

.btn {
    display: inline-block;
    padding: 14px 42px;
    text-decoration: none;
    border-radius: 4px;
    font-weight: 600;
    font-size: 15px;
    transition: all 0.3s;
    border: none;
    cursor: pointer;
}

.btn-primary {
    background: #0066cc;
    color: #fff;
}

.btn-primary:hover {
    background: #0052a3;
    transform: translateY(-2px);
}

.btn-outline {
    background: transparent;
    color: #fff;
    border: 2px solid #fff;
}

.btn-outline:hover {
    background: #fff;
    color: #111;
}

section {
    padding: 90px 0;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-bottom: 60px;
}

.section-title h3 {
    font-size: 36px;
    font-weight: 700;
    color: #111;
    margin-bottom: 10px;
}

.section-title p {
    color: #888;
    font-size: 15px;
}

.section-more a {
    color: #0066cc;
    text-decoration: none;
    font-weight: 500;
    font-size: 14px;
    display: flex;
    align-items: center;
    gap: 6px;
}

.section-more a:hover {
    gap: 10px;
}

.product-categories {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.product-categories-section .section-header {
    justify-content: center;
    text-align: center;
}

.product-categories-section .section-title {
    text-align: center;
}

.product-categories-section .section-title h3 {
    font-size: 42px;
    margin-bottom: 15px;
}

.product-categories-section .section-title p {
    font-size: 18px;
    color: #666;
}

.product-categories-section .section-more {
    display: none;
}

.product-category {
    background: #fff;
    border-radius: 16px;
    padding: 50px 40px;
    transition: all 0.3s ease;
    border: 1px solid #e8e8e8;
    box-shadow: 0 4px 20px rgba(0,0,0,0.05);
}

.product-category:hover {
    background: #0066cc;
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0,102,204,0.2);
    border-color: #0066cc;
}

.product-category:hover h4,
.product-category:hover a {
    color: #fff;
}

.product-category h4 {
    font-size: 26px;
    color: #111;
    margin-bottom: 30px;
    font-weight: 700;
    transition: color 0.3s;
    display: flex;
    align-items: center;
    gap: 12px;
}

.product-category h4::before {
    content: '';
    display: inline-block;
    width: 4px;
    height: 28px;
    background: #0066cc;
    border-radius: 2px;
}

.product-category:hover h4::before {
    background: #fff;
}

.product-category ul {
    list-style: none;
}

.product-category li {
    margin-bottom: 16px;
}

.product-category a {
    color: #555;
    text-decoration: none;
    font-size: 16px;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    gap: 10px;
}

.product-category a::before {
    content: '→';
    font-size: 14px;
    opacity: 0;
    transform: translateX(-10px);
    transition: all 0.3s;
}

.product-category:hover a::before {
    opacity: 1;
    transform: translateX(0);
}

.product-category:hover a {
    color: rgba(255,255,255,0.9);
    padding-left: 5px;
}

.features {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
}

.features .section-header {
    justify-content: center;
    text-align: center;
}

.features .section-title {
    text-align: center;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
}

.feature-item {
    background: #fff;
    padding: 40px 25px;
    border-radius: 16px;
    text-align: center;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    border: 1px solid transparent;
    position: relative;
    overflow: hidden;
}

.feature-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, #0066cc, #00a8ff);
    transform: scaleX(0);
    transition: transform 0.4s;
}

.feature-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.1);
    border-color: #e8e8e8;
}

.feature-item:hover::before {
    transform: scaleX(1);
}

.feature-number {
    font-size: 52px;
    font-weight: 800;
    background: linear-gradient(135deg, #0066cc, #00a8ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 15px;
    line-height: 1;
}

.feature-item h4 {
    font-size: 20px;
    color: #111;
    margin-bottom: 15px;
    font-weight: 700;
}

.feature-item p {
    color: #666;
    line-height: 1.8;
    font-size: 14px;
}

.products {
    background: #fff;
}

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

.products .section-header {
    justify-content: center;
    text-align: center;
}

.products .section-title {
    text-align: center;
}

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

.product-card {
    background: #fff;
    border: 1px solid #e8e8e8;
    border-radius: 16px;
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.product-card:hover {
    border-color: #0066cc;
    box-shadow: 0 20px 40px rgba(0,102,204,0.15);
    transform: translateY(-8px);
}

.product-image {
    width: 100%;
    height: 240px;
    background: linear-gradient(135deg, #f5f7fa 0%, #e9ecef 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 64px;
    color: #0066cc;
    position: relative;
    overflow: hidden;
}

.product-image::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(0,102,204,0.1) 0%, transparent 100%);
    opacity: 0;
    transition: opacity 0.3s;
}

.product-card:hover .product-image::after {
    opacity: 1;
}

.product-info {
    padding: 28px;
}

.product-info h5 {
    font-size: 20px;
    color: #111;
    margin-bottom: 12px;
    font-weight: 700;
}

.product-info p {
    color: #666;
    margin-bottom: 20px;
    line-height: 1.7;
    font-size: 14px;
}

.product-link {
    color: #0066cc;
    text-decoration: none;
    font-weight: 600;
    font-size: 14px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: all 0.3s;
    padding: 8px 0;
}

.product-link:hover {
    gap: 12px;
    color: #0052a3;
}

.product-link::after {
    content: '';
    display: block;
    width: 0;
    height: 2px;
    background: #0066cc;
    transition: width 0.3s;
    position: absolute;
    bottom: 0;
    left: 0;
}

.product-link {
    position: relative;
}

.product-link:hover::after {
    width: 100%;
}

.news {
    background: #fff;
}

.news .section-header {
    justify-content: center;
    text-align: center;
}

.news .section-title {
    text-align: center;
}

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

.news-card {
    background: #fff;
    border-radius: 16px;
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    border: 1px solid #e8e8e8;
}

.news-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.1);
    border-color: #0066cc;
}

/* 首页新闻卡片 - 作为链接的整块卡片 */
.news-card-link {
    display: flex;
    flex-direction: column;
    background: #fff;
    border-radius: 16px;
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    border: 1px solid #e8e8e8;
    text-decoration: none;
    color: inherit;
}

.news-card-link:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.12);
    border-color: #0066cc;
    color: inherit;
}

/* 图片上的箭头遮罩 */
.news-image-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 102, 204, 0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.news-image-overlay i {
    color: #fff;
    font-size: 28px;
}

.news-card-link:hover .news-image-overlay {
    opacity: 1;
}

.news-card-link:hover .news-image img {
    transform: scale(1.08);
}

/* 卡片内"阅读全文"按钮 */
.news-read-more {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: #0066cc;
    font-size: 13px;
    font-weight: 600;
    margin-top: 14px;
    transition: gap 0.3s ease;
}

.news-read-more i {
    font-size: 11px;
    transition: transform 0.3s ease;
}

.news-card-link:hover .news-read-more {
    gap: 10px;
}

.news-card-link:hover .news-read-more i {
    transform: translateX(3px);
}

.news-image {
    width: 100%;
    height: 200px;
    background: linear-gradient(135deg, #0066cc 0%, #00a8ff 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 48px;
    color: rgba(255,255,255,0.3);
    position: relative;
    overflow: hidden;
}

.news-image img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    display: block;
    transition: transform 0.4s ease;
}

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

.news-image::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, transparent 0%, rgba(0,0,0,0.1) 100%);
}

.news-content {
    padding: 28px;
}

.news-date {
    color: #0066cc;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 6px;
}

.news-date::before {
    content: '';
    display: inline-block;
    width: 8px;
    height: 8px;
    background: #0066cc;
    border-radius: 50%;
}

.news-content h5 {
    font-size: 18px;
    color: #111;
    margin-bottom: 12px;
    font-weight: 700;
    line-height: 1.5;
    transition: color 0.3s;
}

.news-card:hover .news-content h5 {
    color: #0066cc;
}

.news-content p {
    color: #666;
    font-size: 14px;
    line-height: 1.7;
}

.about {
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #1e3a5f 100%);
    color: #fff;
    position: relative;
    overflow: hidden;
}

.about::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="50" cy="50" r="40" fill="none" stroke="rgba(255,255,255,0.03)" stroke-width="0.5"/></svg>');
    background-size: 100px 100px;
}

.about .container {
    position: relative;
    z-index: 1;
}

.about .section-header {
    justify-content: center;
    text-align: center;
}

.about .section-title {
    text-align: center;
}

.about .section-title h3,
.about .section-title p {
    color: #fff;
}

.about-content {
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
    padding: 40px;
    background: rgba(255,255,255,0.05);
    border-radius: 20px;
    border: 1px solid rgba(255,255,255,0.1);
    backdrop-filter: blur(10px);
}

.about-content h4 {
    font-size: 32px;
    margin-bottom: 25px;
    font-weight: 700;
    background: linear-gradient(135deg, #fff, #a0c4ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.about-content p {
    font-size: 18px;
    line-height: 2;
    opacity: 0.9;
    color: rgba(255,255,255,0.85);
}

footer {
    background: #0a0a0a;
    color: #999;
    padding: 70px 0 30px;
}

footer .container {
    width: 95%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    box-sizing: border-box;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 50px;
    margin-bottom: 50px;
    width: 100%;
    align-items: start;
}

.footer-info {
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.footer-info h4 {
    font-size: 22px;
    color: #fff;
    margin-bottom: 25px;
    font-weight: 700;
}

.footer-info p {
    margin-bottom: 15px;
    font-size: 14px;
    line-height: 1.8;
    display: flex;
    align-items: center;
    gap: 10px;
}

.social-icons {
    display: flex;
    gap: 16px;
    margin-top: 20px;
}

.social-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 80px;
    height: 80px;
    border-radius: 12px;
    background: #1e293b;
    color: #fff;
    text-decoration: none;
    transition: all 0.3s ease;
    font-size: 32px;
}

.social-icon:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0,0,0,0.2);
}

.social-icon:nth-child(1) {
    background: #07C160;
}

.social-icon:nth-child(2) {
    background: #E6162D;
}

.social-icon:nth-child(3) {
    background: #000000;
}

.social-icon:nth-child(4) {
    background: #FF0000;
}

.social-icon:nth-child(5) {
    background: #1877F2;
}

.social-icon:nth-child(6) {
    background: #1DA1F2;
}

/* 英文模式社交媒体图标颜色 */
body[lang="en-US"] .social-icon:nth-child(1) {
    background: #FF0000;
}

body[lang="en-US"] .social-icon:nth-child(2) {
    background: #E6162D;
}

body[lang="en-US"] .social-icon:nth-child(3) {
    background: #1877F2;
}

body[lang="en-US"] .social-icon:nth-child(4) {
    background: #1DA1F2;
}

.footer-info i {
    color: #0066cc;
    width: 16px;
}

.footer-nav {
    width: 100%;
}

.footer-nav h5 {
    font-size: 16px;
    color: #fff;
    margin-bottom: 25px;
    font-weight: 600;
}

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

.footer-nav li {
    margin-bottom: 12px;
}

.footer-nav a {
    color: #999;
    text-decoration: none;
    font-size: 14px;
    transition: color 0.3s;
}

.footer-nav a:hover {
    color: #fff;
}

.footer-bottom {
    border-top: 1px solid #222;
    padding-top: 30px;
    text-align: center;
    font-size: 14px;
    color: #666;
}

.page-header {
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    padding: 100px 0;
    color: #fff;
    text-align: center;
}

.page-header h1 {
    font-size: 42px;
    font-weight: 700;
    margin-bottom: 15px;
}

.page-header p {
    font-size: 16px;
    opacity: 0.8;
}

.page-content {
    padding: 70px 0;
}

.filter-section {
    display: flex;
    gap: 10px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 10px 24px;
    border: 1px solid #ddd;
    background: #fff;
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
    transition: all 0.3s;
    color: #666;
}

.filter-btn:hover,
.filter-btn.active {
    background: #0066cc;
    border-color: #0066cc;
    color: #fff;
}

@media (max-width: 992px) {
    .nav-links {
        display: none;
    }
    
    .menu-toggle {
        display: flex;
    }
    
    .top-bar-left {
        gap: 20px;
    }
    
    .product-categories,
    .feature-grid,
    .product-grid,
    .news-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
}

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

.product-item {
    background: #fff;
    border: 1px solid #e8e8e8;
    border-radius: 8px;
    overflow: hidden;
    transition: all 0.3s;
}

.product-item:hover {
    border-color: #0066cc;
    box-shadow: 0 10px 30px rgba(0,0,0,0.08);
    transform: translateY(-5px);
}

.product-item .product-image {
    width: 100%;
    height: 260px;
    background: #f5f7fa;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 64px;
    color: #ccc;
}

.product-item .product-info {
    padding: 28px;
}

.product-item .product-info h3 {
    font-size: 20px;
    color: #111;
    margin-bottom: 12px;
    font-weight: 600;
}

.product-item .product-info p {
    color: #777;
    line-height: 1.6;
    font-size: 14px;
}

/* ============================================================
   新闻中心 - Banner
   ============================================================ */
.news-banner {
    position: relative;
    padding: 90px 0 70px;
    overflow: hidden;
}

.news-banner-bg {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, #0a0f1e 0%, #0f2040 40%, #0a1a3a 100%);
    z-index: 0;
}

.news-banner-bg::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(0,102,204,0.15) 0%, transparent 70%);
    pointer-events: none;
}

.news-banner-inner {
    position: relative;
    z-index: 1;
}

.news-banner-title {
    font-size: 46px;
    font-weight: 800;
    color: #fff;
    margin-bottom: 16px;
    letter-spacing: 2px;
}

.news-banner-subtitle {
    font-size: 17px;
    color: rgba(255,255,255,0.65);
    margin-bottom: 40px;
}

.news-banner-stats {
    display: flex;
    align-items: center;
    gap: 0;
}

.stat-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 0 32px;
}

.stat-item:first-child {
    padding-left: 0;
}

.stat-num {
    font-size: 32px;
    font-weight: 800;
    color: #3b9eff;
    line-height: 1;
    margin-bottom: 6px;
}

.stat-label {
    font-size: 13px;
    color: rgba(255,255,255,0.55);
}

.stat-divider {
    width: 1px;
    height: 40px;
    background: rgba(255,255,255,0.15);
}

/* ============================================================
   面包屑（公用）
   ============================================================ */
.breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 24px;
    font-size: 14px;
    color: rgba(255,255,255,0.55);
}

.breadcrumb a {
    color: rgba(255,255,255,0.65);
    text-decoration: none;
    transition: color 0.3s;
}

.breadcrumb a:hover {
    color: #fff;
}

.breadcrumb .separator {
    font-size: 10px;
    opacity: 0.5;
}

.breadcrumb .current {
    color: rgba(255,255,255,0.9);
}

/* ============================================================
   新闻列表区
   ============================================================ */
.news-section {
    padding: 70px 0 90px;
    background: #f7f9fc;
}

/* 筛选栏 */
.news-filter {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 50px;
    gap: 20px;
    flex-wrap: wrap;
}

.news-tabs {
    display: flex;
    gap: 8px;
    background: #fff;
    border-radius: 50px;
    padding: 6px;
    box-shadow: 0 2px 12px rgba(0,0,0,0.06);
}

.tab-btn {
    display: flex;
    align-items: center;
    gap: 7px;
    padding: 10px 22px;
    border: none;
    background: transparent;
    color: #666;
    font-size: 15px;
    font-weight: 500;
    border-radius: 50px;
    cursor: pointer;
    transition: all 0.3s;
    font-family: inherit;
}

.tab-btn i {
    font-size: 13px;
}

.tab-btn em {
    font-style: normal;
    font-size: 12px;
    background: #f0f0f0;
    color: #999;
    padding: 1px 7px;
    border-radius: 20px;
    font-weight: 600;
    transition: all 0.3s;
}

.tab-btn:hover {
    color: #0066cc;
}

.tab-btn.active {
    background: #0066cc;
    color: #fff;
    box-shadow: 0 4px 16px rgba(0,102,204,0.3);
}

.tab-btn.active em {
    background: rgba(255,255,255,0.25);
    color: #fff;
}

/* 搜索框 */
.news-search {
    display: flex;
    align-items: center;
    gap: 10px;
    background: #fff;
    border: 1.5px solid #e8e8e8;
    border-radius: 50px;
    padding: 10px 20px;
    min-width: 240px;
    transition: border-color 0.3s, box-shadow 0.3s;
}

.news-search:focus-within {
    border-color: #0066cc;
    box-shadow: 0 0 0 3px rgba(0,102,204,0.1);
}

.news-search i {
    color: #aaa;
    font-size: 15px;
}

.news-search input {
    border: none;
    outline: none;
    font-size: 14px;
    color: #333;
    background: transparent;
    flex: 1;
}

.news-search input::placeholder {
    color: #bbb;
}

/* 置顶大卡片 */
.news-featured {
    margin-bottom: 40px;
}

.featured-news-card {
    display: flex;
    gap: 0;
    background: #fff;
    border-radius: 16px;
    overflow: hidden;
    text-decoration: none;
    color: inherit;
    box-shadow: 0 4px 20px rgba(0,0,0,0.07);
    transition: all 0.4s ease;
}

.featured-news-card:hover {
    box-shadow: 0 16px 50px rgba(0,0,0,0.13);
    transform: translateY(-4px);
}

.featured-news-image {
    position: relative;
    flex-shrink: 0;
    width: 480px;
    min-height: 300px;
    overflow: hidden;
    background: linear-gradient(135deg, #0a2540 0%, #0066cc 100%);
}

.featured-news-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.featured-news-card:hover .featured-news-image img {
    transform: scale(1.05);
}

.featured-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 72px;
    color: rgba(255,255,255,0.2);
    min-height: 300px;
}

.featured-badge {
    position: absolute;
    top: 20px;
    left: 20px;
    background: #ff4b1f;
    color: #fff;
    padding: 5px 14px;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 5px;
}

.featured-news-info {
    flex: 1;
    padding: 40px 45px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.featured-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
    margin-bottom: 18px;
}

.news-category-tag {
    background: rgba(0,102,204,0.1);
    color: #0066cc;
    font-size: 12px;
    font-weight: 600;
    padding: 4px 12px;
    border-radius: 4px;
}

.news-date-tag,
.news-views-tag {
    font-size: 13px;
    color: #999;
    display: flex;
    align-items: center;
    gap: 5px;
}

.featured-title {
    font-size: 26px;
    font-weight: 700;
    color: #111;
    line-height: 1.45;
    margin-bottom: 18px;
    transition: color 0.3s;
}

.featured-news-card:hover .featured-title {
    color: #0066cc;
}

.featured-excerpt {
    color: #666;
    font-size: 15px;
    line-height: 1.8;
    margin-bottom: 28px;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.featured-read-more {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: #0066cc;
    font-size: 15px;
    font-weight: 600;
    transition: gap 0.3s;
}

.featured-news-card:hover .featured-read-more {
    gap: 14px;
}

/* 新闻卡片列表 */
.news-list {
    display: grid;
    grid-template-columns: 1fr;
    gap: 24px;
}

.news-card {
    background: #fff;
    border-radius: 14px;
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    transition: all 0.35s ease;
}

.news-card:hover {
    box-shadow: 0 12px 40px rgba(0,0,0,0.10);
    transform: translateY(-4px);
}

.news-card-link {
    display: flex;
    text-decoration: none;
    color: inherit;
    height: 100%;
}

.news-card-image {
    position: relative;
    flex-shrink: 0;
    width: 300px;
    min-width: 300px;
    height: 210px;
    overflow: hidden;
    background: linear-gradient(135deg, #0a2540 0%, #0066cc 100%);
}

.news-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.45s ease;
}

.news-card:hover .news-card-image img {
    transform: scale(1.08);
}

.news-card-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 52px;
    color: rgba(255,255,255,0.2);
}

.news-card-badge {
    position: absolute;
    top: 14px;
    left: 14px;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 4px;
}

.top-badge {
    background: #ff8c00;
    color: #fff;
}

.news-card-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0,102,204,0.75);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.35s;
    color: #fff;
    font-size: 15px;
    font-weight: 600;
}

.news-card:hover .news-card-overlay {
    opacity: 1;
}

.news-card-body {
    flex: 1;
    display: flex;
    align-items: stretch;
    padding: 28px 32px;
    gap: 24px;
}

/* 日期块 */
.news-card-date-block {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    min-width: 56px;
    padding-top: 4px;
    border-right: 2px solid #f0f0f0;
    padding-right: 22px;
    gap: 4px;
}

.date-day {
    font-size: 34px;
    font-weight: 800;
    color: #0066cc;
    line-height: 1;
}

.date-month-year {
    font-size: 13px;
    color: #aaa;
    white-space: nowrap;
}

.news-card-main {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.news-card-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
}

.tag-category {
    background: rgba(0,102,204,0.08);
    color: #0066cc;
    font-size: 12px;
    font-weight: 600;
    padding: 3px 10px;
    border-radius: 4px;
}

.tag-views {
    font-size: 13px;
    color: #bbb;
    display: flex;
    align-items: center;
    gap: 4px;
}

.news-card-title {
    font-size: 20px;
    font-weight: 700;
    color: #111;
    line-height: 1.45;
    margin-bottom: 12px;
    transition: color 0.3s;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-card:hover .news-card-title {
    color: #0066cc;
}

.news-card-excerpt {
    font-size: 14px;
    color: #777;
    line-height: 1.75;
    flex: 1;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    margin-bottom: 16px;
}

.news-card-footer {
    margin-top: auto;
}

.read-more-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 14px;
    color: #0066cc;
    font-weight: 600;
    transition: gap 0.3s;
}

.news-card:hover .read-more-link {
    gap: 12px;
}

/* 空状态 */
.news-empty {
    text-align: center;
    padding: 100px 0;
    color: #bbb;
}

.news-empty i {
    font-size: 64px;
    margin-bottom: 20px;
    display: block;
}

.news-empty h3 {
    font-size: 22px;
    margin-bottom: 10px;
    color: #ccc;
}

.news-empty p {
    font-size: 15px;
    color: #ddd;
}

.news-empty-search {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 80px 0;
    color: #bbb;
    gap: 14px;
}

.news-empty-search i {
    font-size: 48px;
}

.news-empty-search p {
    font-size: 16px;
}

/* ============================================================
   新闻详情 - Banner
   ============================================================ */
.news-detail-banner {
    position: relative;
    padding: 40px 0 35px;
    overflow: hidden;
}

.news-detail-banner-bg {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, #0a0f1e 0%, #0f2040 100%);
    z-index: 0;
}

.news-detail-banner .container {
    position: relative;
    z-index: 1;
}

.news-detail-banner .breadcrumb {
    margin-bottom: 0;
}

/* ============================================================
   新闻详情 - 主体
   ============================================================ */
.news-detail-section {
    padding: 60px 0 90px;
    background: #f7f9fc;
}

.news-detail-layout {
    display: grid;
    grid-template-columns: 1fr 320px;
    gap: 40px;
    align-items: start;
}

/* 文章 */
.news-detail-article {
    background: #fff;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0,0,0,0.06);
}

.article-header {
    padding: 45px 50px 35px;
    border-bottom: 1.5px solid #f0f0f0;
}

.article-category-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: rgba(0,102,204,0.08);
    color: #0066cc;
    font-size: 13px;
    font-weight: 600;
    padding: 5px 14px;
    border-radius: 6px;
    margin-bottom: 18px;
}

.article-title {
    font-size: 30px;
    font-weight: 800;
    color: #111;
    line-height: 1.4;
    margin-bottom: 22px;
}

.article-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 18px;
}

.meta-item {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 14px;
    color: #999;
}

.meta-item i {
    color: #bbb;
    font-size: 13px;
}

/* 封面图 */
.article-cover {
    width: 100%;
    overflow: hidden;
    max-height: 500px;
}

.article-cover img {
    width: 100%;
    height: auto;
    max-height: 500px;
    object-fit: cover;
    object-position: center;
    display: block;
    transition: transform 0.4s ease;
}

.news-detail-article:hover .article-cover img {
    transform: scale(1.02);
}

/* 正文 */
.article-body {
    padding: 40px 50px;
    line-height: 1.9;
    color: #444;
    font-size: 16px;
}

.article-body p {
    margin-bottom: 22px;
}

.article-body h2,
.article-body h3,
.article-body h4 {
    color: #111;
    font-weight: 700;
    margin: 30px 0 16px;
    line-height: 1.4;
}

.article-body h2 { font-size: 24px; }
.article-body h3 { font-size: 20px; }
.article-body h4 { font-size: 18px; }

.article-body img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    margin: 20px auto;
    display: block;
    box-shadow: 0 4px 16px rgba(0,0,0,0.08);
}

.article-body ul,
.article-body ol {
    padding-left: 24px;
    margin-bottom: 20px;
}

.article-body li {
    margin-bottom: 8px;
}

.article-body blockquote {
    border-left: 4px solid #0066cc;
    background: rgba(0,102,204,0.04);
    padding: 16px 24px;
    margin: 24px 0;
    border-radius: 0 8px 8px 0;
    color: #555;
    font-style: italic;
}

/* 文章底部 */
.article-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 24px 50px;
    border-top: 1.5px solid #f0f0f0;
    border-bottom: 1.5px solid #f0f0f0;
    flex-wrap: wrap;
    gap: 16px;
}

.article-share {
    display: flex;
    align-items: center;
    gap: 12px;
}

.share-label {
    font-size: 14px;
    color: #888;
    display: flex;
    align-items: center;
    gap: 6px;
}

.share-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    font-size: 16px;
    text-decoration: none;
    transition: all 0.3s;
    cursor: pointer;
    border: none;
}

.share-btn.wechat {
    background: #07c160;
    color: #fff;
}

.share-btn.weibo {
    background: #e6162d;
    color: #fff;
}

.share-btn:hover {
    opacity: 0.85;
    transform: scale(1.1);
}

.btn-back-list {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 24px;
    background: #f7f9fc;
    border: 1.5px solid #e0e4eb;
    border-radius: 50px;
    color: #555;
    font-size: 14px;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.3s;
}

.btn-back-list:hover {
    background: #0066cc;
    color: #fff;
    border-color: #0066cc;
}

/* 上下篇导航 */
.article-nav {
    display: flex;
    align-items: stretch;
    border-top: 1.5px solid #f0f0f0;
}

.article-nav-item {
    flex: 1;
    padding: 24px 30px;
}

.article-nav-item a {
    display: flex;
    flex-direction: column;
    gap: 6px;
    text-decoration: none;
    color: inherit;
    height: 100%;
    transition: color 0.3s;
}

.article-nav-item a:hover {
    color: #0066cc;
}

.article-nav-item.next {
    text-align: right;
    padding: 24px 50px;
}

.article-nav-item.prev {
    padding: 24px 50px;
}

.nav-dir {
    font-size: 13px;
    color: #aaa;
    display: flex;
    align-items: center;
    gap: 4px;
}

.article-nav-item.next .nav-dir {
    justify-content: flex-end;
}

.nav-title {
    font-size: 15px;
    color: #333;
    font-weight: 500;
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    transition: color 0.3s;
}

.article-nav-item a:hover .nav-title {
    color: #0066cc;
}

.nav-none {
    font-size: 14px;
    color: #ccc;
}

.article-nav-divider {
    width: 1.5px;
    background: #f0f0f0;
    flex-shrink: 0;
}

/* ============================================================
   详情 - 侧边栏
   ============================================================ */
.news-detail-sidebar {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.sidebar-widget {
    background: #fff;
    border-radius: 14px;
    padding: 28px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.06);
}

.widget-title {
    font-size: 17px;
    font-weight: 700;
    color: #111;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 8px;
    padding-bottom: 16px;
    border-bottom: 2px solid #f0f0f0;
}

.widget-title i {
    color: #ff4b1f;
}

.sidebar-news-item {
    display: flex;
    gap: 12px;
    padding: 14px 0;
    border-bottom: 1px solid #f5f5f5;
    text-decoration: none;
    color: inherit;
    transition: all 0.3s;
}

.sidebar-news-item:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.sidebar-news-item:hover {
    color: #0066cc;
}

.sidebar-news-img {
    flex-shrink: 0;
    width: 68px;
    height: 52px;
    border-radius: 6px;
    overflow: hidden;
    background: #f0f0f0;
}

.sidebar-news-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.sidebar-news-info {
    flex: 1;
    min-width: 0;
}

.sidebar-news-title {
    font-size: 14px;
    line-height: 1.5;
    color: #333;
    margin-bottom: 6px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    transition: color 0.3s;
}

.sidebar-news-item:hover .sidebar-news-title {
    color: #0066cc;
}

.sidebar-news-date {
    font-size: 12px;
    color: #bbb;
    display: flex;
    align-items: center;
    gap: 4px;
}

.about-content-page {
    max-width: 900px;
    margin: 0 auto;
}

.about-content-page h3 {
    font-size: 28px;
    color: #111;
    margin-bottom: 20px;
    font-weight: 700;
}

.about-content-page h4 {
    font-size: 22px;
    color: #111;
    margin: 35px 0 15px;
    font-weight: 600;
}

.about-content-page p {
    color: #555;
    font-size: 16px;
    line-height: 1.9;
    margin-bottom: 20px;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
}

.contact-info h3,
.contact-form h3 {
    font-size: 24px;
    color: #111;
    margin-bottom: 30px;
    font-weight: 600;
}

.contact-info p {
    display: flex;
    align-items: center;
    gap: 12px;
    color: #555;
    font-size: 15px;
    margin-bottom: 20px;
}

.contact-info i {
    color: #0066cc;
    width: 20px;
    font-size: 18px;
}

.success-message {
    background: #e6f7ff;
    border: 1px solid #91d5ff;
    color: #0050b3;
    padding: 15px 20px;
    border-radius: 6px;
    margin-bottom: 25px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    color: #333;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 8px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid #ddd;
    border-radius: 6px;
    font-size: 14px;
    transition: border-color 0.3s;
    font-family: inherit;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #0066cc;
}

.no-data {
    text-align: center;
    padding: 80px 0;
    color: #999;
    font-size: 16px;
}

/* Hero Popup Modal */
.hero-popup-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.9);
    z-index: 9999;
    justify-content: center;
    align-items: center;
    padding: 20px;
}

.hero-popup-modal.active {
    display: flex;
}

.hero-popup-content {
    position: relative;
    max-width: 90%;
    max-height: 90%;
    background: #000;
    border-radius: 8px;
    overflow: hidden;
}

.hero-popup-close {
    position: absolute;
    top: -40px;
    right: 0;
    background: none;
    border: none;
    color: #fff;
    font-size: 36px;
    cursor: pointer;
    z-index: 10;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-popup-close:hover {
    color: #ccc;
}

#heroPopupBody img,
#heroPopupBody video {
    display: block;
    max-width: 90vw;
    max-height: 85vh;
}

@media (max-width: 992px) {
    .nav-links {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100vh;
        background: #fff;
        flex-direction: column;
        padding: 80px 30px 30px;
        z-index: 999;
        gap: 0;
        overflow-y: auto;
    }
    
    .nav-links.active {
        display: flex;
    }
    
    .nav-links > li > a {
        padding: 15px 0;
        border-bottom: 1px solid #eee;
        font-size: 16px;
    }
    
    .nav-dropdown {
        position: static;
        display: none;
        box-shadow: none;
        padding: 0 0 0 15px;
        background: #f8f9fa;
        margin: 5px 0;
        border-radius: 4px;
    }
    
    .nav-links > li:hover .nav-dropdown {
        display: none;
    }
    
    .nav-links > li.dropdown-open .nav-dropdown {
        display: block;
    }
    
    .nav-dropdown a {
        padding: 12px 15px;
        border-bottom: 1px solid #eee;
    }
    
    .nav-dropdown a:last-child {
        border-bottom: none;
    }
    
    .menu-toggle {
        display: flex;
        z-index: 1000;
        position: relative;
    }
    
    .menu-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    
    .menu-toggle.active span:nth-child(2) {
        opacity: 0;
    }
    
    .menu-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }
    
    .top-bar-left {
        gap: 20px;
    }
    
    .language-switcher {
        gap: 4px;
    }
    
    .lang-btn {
        padding: 4px 12px;
        font-size: 13px;
    }
    
    /* 平板版产品分类改为1列 */
    .product-categories {
        grid-template-columns: 1fr;
        max-width: 600px;
        margin: 0 auto;
    }
    
    .feature-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .product-grid,
    .news-grid,
    .product-list {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-grid,
    .contact-content {
        grid-template-columns: 1fr 1fr;
    }
    
    /* 平板端新闻卡片 */
    .news-card-image {
        width: 240px;
        min-width: 240px;
        height: 180px;
    }

    .featured-news-image {
        width: 360px;
    }

    /* 详情页平板 */
    .news-detail-layout {
        grid-template-columns: 1fr 260px;
        gap: 28px;
    }
    
    /* 平板版首页优化 */
    .hero {
        height: 500px;
    }
    
    .hero-content {
        padding: 0 30px;
        text-align: center;
        align-items: center;
    }
    
    .hero-content h2 {
        font-size: 40px;
    }
    
    section {
        padding: 60px 0;
    }
    
    .product-category {
        padding: 40px 35px;
    }
}

@media (max-width: 768px) {
    .top-bar {
        display: none;
    }
    
    header {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
    }
    
    body {
        padding-top: 70px;
    }
    
    .nav-right {
        gap: 10px;
    }
    
    .language-switcher {
        padding: 2px;
    }
    
    .lang-btn {
        padding: 3px 8px;
        font-size: 12px;
    }
    
    .hero {
        height: 100vh;
        min-height: 500px;
        max-height: 700px;
    }
    
    .hero-content {
        padding: 0 25px;
        text-align: center;
        align-items: center;
        justify-content: center;
    }
    
    .hero-content h2 {
        font-size: 32px;
        line-height: 1.3;
        margin-bottom: 20px;
    }
    
    .hero-content p {
        font-size: 16px;
        line-height: 1.8;
        margin-bottom: 35px;
        max-width: 100%;
    }
    
    .btn {
        padding: 14px 40px;
        font-size: 16px;
    }
    
    section {
        padding: 50px 0;
    }
    
    .section-header {
        flex-direction: column;
        align-items: center;
        gap: 15px;
        text-align: center;
        margin-bottom: 40px;
    }
    
    .section-title h3 {
        font-size: 26px;
        margin-bottom: 8px;
    }
    
    .section-title p {
        font-size: 14px;
    }
    
    /* 产品分类手机版 */
    .product-categories {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .product-category {
        padding: 30px 25px;
    }
    
    .product-category h4 {
        font-size: 22px;
        margin-bottom: 20px;
    }
    
    .product-category h4::before {
        height: 24px;
    }
    
    .product-category li {
        margin-bottom: 12px;
    }
    
    .product-category a {
        font-size: 15px;
    }
    
    /* 核心优势手机版 */
    .feature-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
    }
    
    .feature-item {
        padding: 25px 15px;
    }
    
    .feature-number {
        font-size: 32px;
    }
    
    .feature-item h4 {
        font-size: 15px;
        margin-bottom: 8px;
    }
    
    .feature-item p {
        font-size: 12px;
        line-height: 1.6;
    }
    
    /* 产品列表手机版 */
    .product-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .product-card {
        display: flex;
        flex-direction: row;
        align-items: stretch;
    }
    
    .product-image {
        width: 120px;
        min-width: 120px;
        height: auto;
        font-size: 36px;
    }
    
    .product-info {
        flex: 1;
        padding: 20px;
        display: flex;
        flex-direction: column;
        justify-content: center;
    }
    
    .product-info h5 {
        font-size: 16px;
        margin-bottom: 8px;
    }
    
    .product-info p {
        font-size: 13px;
        margin-bottom: 12px;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
    }
    
    /* 新闻手机版 */
    .news-banner-title {
        font-size: 30px;
    }
    
    .news-banner-stats {
        flex-wrap: wrap;
        gap: 12px;
    }
    
    .stat-item {
        padding: 0 16px;
    }

    .news-filter {
        flex-direction: column;
        align-items: stretch;
        margin-bottom: 30px;
    }

    .news-tabs {
        overflow-x: auto;
        padding: 5px;
        gap: 6px;
    }

    .tab-btn {
        flex-shrink: 0;
        padding: 9px 16px;
        font-size: 14px;
    }

    .news-search {
        min-width: auto;
    }

    .featured-news-card {
        flex-direction: column;
    }

    .featured-news-image {
        width: 100%;
        min-height: 200px;
    }

    .featured-news-info {
        padding: 24px;
    }

    .featured-title {
        font-size: 20px;
    }

    .news-card-link {
        flex-direction: column;
    }

    .news-card-image {
        width: 100%;
        min-width: 100%;
        height: 200px;
    }

    .news-card-body {
        padding: 20px;
        gap: 16px;
    }

    .news-card-date-block {
        min-width: 44px;
        padding-right: 16px;
    }

    .date-day {
        font-size: 26px;
    }

    .news-card-title {
        font-size: 17px;
    }

    /* 详情页手机版 */
    .news-detail-layout {
        grid-template-columns: 1fr;
    }

    .news-detail-sidebar {
        order: -1;
    }

    .article-header {
        padding: 28px 20px 22px;
    }

    .article-title {
        font-size: 22px;
    }

    .article-body {
        padding: 24px 20px;
        font-size: 15px;
    }

    .article-footer {
        padding: 18px 20px;
        flex-direction: column;
        align-items: flex-start;
    }

    .article-nav-item.prev,
    .article-nav-item.next {
        padding: 18px 20px;
    }
    }
    
    /* 关于我们手机版 */
    .about-content {
        padding: 25px 20px;
    }
    
    .about-content h4 {
        font-size: 22px;
        margin-bottom: 15px;
    }
    
    .about-content p {
        font-size: 15px;
        line-height: 1.8;
    }
    
    /* 页脚手机版：4列紧凑排列 */
    .footer-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 20px 14px;
    }

    .footer-info {
        grid-column: auto;
        align-items: flex-start;
        padding-right: 0;
    }

    .footer-info h4 {
        font-size: 12px;
        font-weight: 700;
        color: #fff;
        margin-bottom: 12px;
        white-space: nowrap;
    }

    .footer-info p {
        justify-content: flex-start;
        margin-bottom: 7px;
        font-size: 11px;
        line-height: 1.5;
    }

    .footer-info .social-icons {
        justify-content: flex-start;
        margin-top: 8px;
    }

    .footer-info .social-icons a {
        width: 50px;
        height: 50px;
        font-size: 20px;
    }

    .footer-nav h5 {
        font-size: 12px;
        font-weight: 700;
        color: #fff;
        margin-bottom: 10px;
        padding-bottom: 8px;
    }

    .footer-nav li {
        margin-bottom: 7px;
    }

    .footer-nav a {
        font-size: 11px;
        color: #999;
    }

    footer {
        padding: 40px 0 20px;
    }

    .footer-bottom {
        margin-top: 20px;
        padding-top: 16px;
    }

    .footer-bottom p {
        font-size: 11px;
    }
}

/* ==================== 分享功能样式 ==================== */

/* 分享弹窗遮罩 */
.share-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.share-modal.active {
    opacity: 1;
    visibility: visible;
}

.share-modal-content {
    background: #fff;
    border-radius: 16px;
    padding: 40px;
    max-width: 400px;
    width: 90%;
    text-align: center;
    position: relative;
    transform: scale(0.9);
    transition: transform 0.3s ease;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.share-modal.active .share-modal-content {
    transform: scale(1);
}

.share-modal-close {
    position: absolute;
    top: 15px;
    right: 20px;
    background: none;
    border: none;
    font-size: 28px;
    color: #999;
    cursor: pointer;
    transition: color 0.3s;
    line-height: 1;
}

.share-modal-close:hover {
    color: #333;
}

.share-modal-content h3 {
    font-size: 22px;
    color: #333;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.share-modal-content h3 i {
    font-size: 28px;
}

.wechat-modal h3 {
    color: #07c160;
}

.share-tip {
    font-size: 15px;
    color: #666;
    margin-bottom: 25px;
}

.wechat-qrcode {
    margin: 20px auto;
    padding: 20px;
    background: #f8f8f8;
    border-radius: 12px;
    display: inline-block;
}

.wechat-qrcode img {
    width: 180px;
    height: 180px;
    border-radius: 8px;
}

.share-url {
    margin: 20px 0;
    font-size: 13px;
    color: #666;
}

.share-url input {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid #e0e0e0;
    border-radius: 6px;
    font-size: 12px;
    margin-top: 10px;
    color: #333;
    background: #f9f9f9;
}

.btn-copy-url {
    background: linear-gradient(135deg, #0066cc, #0052a3);
    color: #fff;
    border: none;
    padding: 12px 30px;
    border-radius: 50px;
    font-size: 15px;
    cursor: pointer;
    transition: all 0.3s;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.btn-copy-url:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 102, 204, 0.3);
}

/* Toast 消息提示 */
.toast-message {
    position: fixed;
    top: 20px;
    left: 50%;
    transform: translateX(-50%) translateY(-100px);
    background: #333;
    color: #fff;
    padding: 14px 28px;
    border-radius: 50px;
    font-size: 15px;
    z-index: 10000;
    display: flex;
    align-items: center;
    gap: 10px;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.3);
    transition: transform 0.3s ease;
    opacity: 0;
}

.toast-message.active {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
}

.toast-message.success {
    background: linear-gradient(135deg, #07c160, #05a050);
}

.toast-message.error {
    background: linear-gradient(135deg, #e6162d, #c01025);
}

.toast-message i {
    font-size: 18px;
}