/* 基础样式重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #002878;
    --secondary-color: #1a4a9e;
    --accent-color: #0066cc;
    --text-primary: #1a1a1a;
    --text-secondary: #666666;
    --text-light: #999999;
    --text-dark: #2c3e50;
    --text-gray: #6c757d;
    --bg-primary: #ffffff;
    --bg-secondary: #f8f9fa;
    --bg-dark: #1a1a1a;
    --border-color: #e5e5e5;
    --shadow-light: 0 2px 8px rgba(0, 0, 0, 0.06);
    --shadow-medium: 0 4px 20px rgba(0, 0, 0, 0.08);
    --shadow-heavy: 0 8px 40px rgba(0, 0, 0, 0.12);
    --border-radius: 8px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
    font-family: 'Microsoft YaHei', '微软雅黑', 'Segoe UI', -apple-system, BlinkMacSystemFont, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    font-weight: 400;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    width: 100%;
    max-width: 1600px;
    margin: 0 auto;
    padding: 0 120px;
}

/* 导航栏样式 */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    transition: var(--transition);
}

.nav-container {
    width: 100%;
    margin: 0 auto;
    padding: 0 100px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
    position: relative;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
}

.nav-logo .logo-img {
    height: 45px;
    width: auto;
}

.logo-text {
    font-size: 18px;
    font-weight: 700;
    color: var(--primary-color);
    white-space: nowrap;
}

.footer-logo-text {
    font-size: 20px;
    color: white;
    margin-bottom: 24px;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 36px;
    align-items: center;
}

.nav-item {
    position: relative;
}

.nav-item > a {
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 500;
    font-size: 15px;
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 0;
    transition: var(--transition);
}

.nav-item > a:hover {
    color: var(--primary-color);
}

.nav-item > a i {
    font-size: 12px;
    transition: var(--transition);
}

.nav-item:hover > a i {
    transform: rotate(180deg);
}

/* 下拉菜单 */
.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background: white;
    border: 1px solid var(--border-color);
   /* border-radius: var(--border-radius);*/
    box-shadow: var(--shadow-medium);
    padding: 12px 0;
    min-width: 180px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: var(--transition);
}

.nav-item:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-menu a {
    display: block;
    padding: 10px 20px;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 14px;
    transition: var(--transition);
    white-space: nowrap;
}

.dropdown-menu a:hover {
    color: var(--primary-color);
    background: var(--bg-secondary);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
}

.nav-contact {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-right: 16px;
    color: var(--primary-color);
    font-weight: 600;
    font-size: 14px;
}

.nav-contact i {
    font-size: 14px;
}

/* 语言切换 - 地球图标下拉 */
.language-dropdown {
    position: relative;
}

.language-dropdown .language-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    text-decoration: none;
    color: var(--text-secondary);
    font-size: 18px;
    transition: var(--transition);
    border-radius: 4px;
    cursor: pointer;
}

.language-dropdown .language-link:hover {
    color: var(--primary-color);
    background: var(--bg-secondary);
}

.language-dropdown .language-menu {
    position: absolute;
    top: 100%;
    right: 0;
    background: white;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-medium);
    padding: 8px 0;
    min-width: 120px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: var(--transition);
    margin-top: 8px;
}

.language-dropdown:hover .language-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.language-dropdown .language-menu a {
    display: block;
    padding: 10px 20px;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 14px;
    transition: var(--transition);
    white-space: nowrap;
}

.language-dropdown .language-menu a:hover {
    color: var(--primary-color);
    background: var(--bg-secondary);
}

.language-dropdown .language-menu a.active {
    color: var(--primary-color);
    font-weight: 500;
}

.search-icon {
    cursor: pointer;
    color: var(--text-secondary);
    font-size: 18px;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 4px;
}

.search-icon:hover {
    color: var(--primary-color);
    background: var(--bg-secondary);
}

/* 购物车图标 */
.cart-icon {
    position: relative;
    cursor: pointer;
    color: var(--text-secondary);
    font-size: 18px;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 4px;
    text-decoration: none;
}

.cart-icon:hover {
    color: var(--primary-color);
    background: var(--bg-secondary);
}

.cart-icon .cart-badge {
    position: absolute;
    top: 2px;
    right: 2px;
    background: #ff4444;
    color: white;
    font-size: 11px;
    padding: 2px 5px;
    border-radius: 10px;
    font-weight: 600;
    min-width: 18px;
    text-align: center;
    line-height: 1;
}

/* 用户登录按钮（简化版） */
.login-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    text-decoration: none;
    color: var(--text-primary);
    font-size: 14px;
    font-weight: 500;
    transition: var(--transition);
    padding: 8px 16px;
    border-radius: 4px;
    background: var(--bg-secondary);
}

.login-btn:hover {
    color: var(--primary-color);
    background: linear-gradient(135deg, rgba(0, 40, 120, 0.1) 0%, rgba(26, 74, 158, 0.1) 100%);
}

.login-btn i {
    font-size: 16px;
}

/* 已登录用户信息 */
.nav-user-info {
    position: relative;
}

.nav-user-info .user-link {
    display: flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
    color: var(--text-primary);
    font-size: 14px;
    font-weight: 500;
    padding: 6px 12px;
    border-radius: 4px;
    transition: var(--transition);
}

.nav-user-info .user-link:hover {
    background: var(--bg-secondary);
}

.nav-user-info .user-avatar {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--border-color);
}

.nav-user-info .user-link i.fa-user-circle {
    font-size: 28px;
    color: var(--text-light);
}

.nav-user-info .user-name {
    max-width: 100px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.nav-user-info .fa-chevron-down {
    font-size: 12px;
    transition: var(--transition);
}

.nav-user-info:hover .fa-chevron-down {
    transform: rotate(180deg);
}

/* 用户下拉菜单 */
.nav-user-info .user-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    background: white;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-medium);
    padding: 8px 0;
    min-width: 180px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: var(--transition);
    margin-top: 8px;
}

.nav-user-info:hover .user-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.nav-user-info .user-dropdown a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 20px;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 14px;
    transition: var(--transition);
    white-space: nowrap;
}

.nav-user-info .user-dropdown a:hover {
    color: var(--primary-color);
    background: var(--bg-secondary);
}

.nav-user-info .user-dropdown a i {
    width: 16px;
    text-align: center;
    color: var(--text-light);
}

.nav-user-info .user-dropdown a:hover i {
    color: var(--primary-color);
}

.nav-user-info .cart-badge {
    background: var(--primary-color);
    color: white;
    font-size: 11px;
    padding: 2px 6px;
    border-radius: 10px;
    margin-left: auto;
    font-weight: 600;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
    flex-shrink: 0;
    z-index: 1100;
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    transition: var(--transition);
}

.nav-toggle.active span:nth-child(1) {
    transform: translateY(6px) rotate(45deg);
}

.nav-toggle.active span:nth-child(2) {
    opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
    transform: translateY(-6px) rotate(-45deg);
}

.nav-item.dropdown.open > a i {
    transform: rotate(180deg);
}

body.nav-open {
    overflow: hidden;
}

/* 主横幅区域 - 新布局 */
.hero {
    height: 60vh;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-color);
    overflow: hidden;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    color: white;
    width: 100%;
    padding: 0 24px;
}

.hero-banner-title {
    font-size: 3rem;
    font-weight: 400;
    letter-spacing: 2px;
    margin: 0;
    opacity: 0.9;
}

/* 清理不再使用的hero样式 */

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 60px;
    margin-bottom: 48px;
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--accent-color);
    margin-bottom: 8px;
}

.stat-label {
    font-size: 0.9rem;
    opacity: 0.8;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    align-items: center;
}

.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    color: white;
    opacity: 0.7;
    animation: bounce 2s infinite;
}

.scroll-line {
    width: 1px;
    height: 40px;
    background: white;
    opacity: 0.5;
}

.scroll-indicator span {
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateX(-50%) translateY(0);
    }
    40% {
        transform: translateX(-50%) translateY(-10px);
    }
    60% {
        transform: translateX(-50%) translateY(-5px);
    }
}

/* 按钮样式 */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 16px 32px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 500;
    font-size: 15px;
    transition: var(--transition);
    border: 2px solid transparent;
    cursor: pointer;
    white-space: nowrap;
}

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

.btn-primary:hover {
    background: transparent;
    color: white;
    border-color: white;
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(255, 255, 255, 0.2);
}

.btn-secondary {
    background: transparent;
    color: white;
    border-color: rgba(255, 255, 255, 0.3);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: white;
    transform: translateY(-2px);
}

.btn-outline {
    background: transparent;
    color: var(--primary-color);
    border-color: var(--primary-color);
    padding: 12px 24px;
    font-size: 14px;
}

.btn-outline:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
}

/* 通用板块样式 */
section {
    padding: 0;
}

.section-header {
    text-align: center;
    margin-bottom: 80px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.section-tag {
    display: inline-block;
    background: var(--bg-secondary);
    color: var(--primary-color);
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 16px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.section-header h2 {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 16px;
    line-height: 1.2;
}

.section-header p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* 产品展示区域 */
.products-section {
    background: var(--bg-secondary);
    padding: 120px 0;
}

.products-header {
    text-align: center;
    margin-bottom: 80px;
}

.products-title-en {
    font-size: 2.2rem;
    font-weight: 300;
    letter-spacing: 3px;
    color: var(--text-light);
    margin-bottom: 16px;
    line-height: 100%;
}

.products-title-zh {
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0;
}

.products-showcase {
    width: 100%;
    margin: 0 auto;
}

.product-tabs {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-bottom: 80px;
    background: white;
    padding: 8px;
    border-radius: 50px;
    box-shadow: var(--shadow-light);
    width: fit-content;
    margin-left: auto;
    margin-right: auto;
}

.tab-btn {
    padding: 12px 32px;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 15px;
    border-radius: 50px;
    cursor: pointer;
    transition: var(--transition);
}

.tab-btn.active {
    background: var(--primary-color);
    color: white;
    box-shadow: var(--shadow-light);
}

.tab-content {
    display: none;
}

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

.products-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
    width: 100%;
}

.product-card {
    background: white;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow-light);
    transition: var(--transition);
    position: relative;
    width: 100%;
    min-width: 0;
}

.product-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-heavy);
}

.product-card.featured {
    border: 2px solid var(--primary-color);
}

.product-image {
    position: relative;
    overflow: hidden;
   /* height: 300px;*/
}

.product-image img,
.product-image .product-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.image-placeholder {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-light);
    font-size: 14px;
    font-weight: 500;
    border: 2px dashed #dee2e6;
    transition: var(--transition);
}

.product-card:hover .image-placeholder,
.application-item:hover .image-placeholder,
.news-item:hover .image-placeholder,
.featured-news:hover .image-placeholder {
    background: linear-gradient(135deg, #e9ecef 0%, #dee2e6 100%);
    color: var(--text-secondary);
}

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

.product-badge {
    position: absolute;
    top: 16px;
    right: 16px;
    background: var(--accent-color);
    color: white;
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.product-info {
    padding: 32px;
}

.product-info h3 {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.product-info p {
    color: var(--text-secondary);
    margin-bottom: 24px;
    line-height: 1.6;
}

.product-specs {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 16px;
    margin-bottom: 32px;
}

.spec-item {
    text-align: center;
    padding: 16px;
    background: var(--bg-secondary);
    border-radius: var(--border-radius);
}

.spec-label {
    display: block;
    font-size: 12px;
    color: var(--text-light);
    margin-bottom: 4px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.spec-value {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--primary-color);
}

/* 应用场景 */
.applications-section {
    background: white;
}

.applications-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    margin: 0 auto;
}

.application-item {
    background: white;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow-light);
    transition: var(--transition);
}

.application-item:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-heavy);
}



.app-image {
    position: relative;
    height: 400px;
    overflow: hidden;
}

.app-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.app-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(0, 102, 204, 0.8), rgba(0, 82, 163, 0.8));
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition);
}

.application-item:hover .app-overlay {
    opacity: 1;
}

.app-icon {
    width: 80px;
    height: 80px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(10px);
}

.app-icon i {
    font-size: 2rem;
    color: white;
}

.app-content {
    padding: 40px;
}

.app-content h3 {
    font-size: 1.8rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 16px;
}

.app-content p {
    color: var(--text-secondary);
    margin-bottom: 24px;
    line-height: 1.6;
}

.app-features {
    list-style: none;
    margin-bottom: 32px;
}

.app-features li {
    padding: 8px 0;
    color: var(--text-secondary);
    position: relative;
    padding-left: 24px;
}

.app-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
}

.app-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: var(--transition);
}

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

/* 新闻动态区域 - 新布局 */
.news-section {
    background: url('/public/static/img/aboutbg.jpg') center center / cover no-repeat;
    padding: 80px 0;
    position: relative;
    overflow: hidden;
}



.news-layout {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: 260px 1fr;
    gap: 80px;
    align-items: start;
}

.news-sidebar {
    background: white;
    padding: 40px 30px;
    border-radius: 0;
    box-shadow: none;
    position: sticky;
    
}

.news-header h2 {
    font-size: 2.2rem;
    font-weight: 300;
    color: var(--text-light);
    margin-bottom: 8px;
    letter-spacing: 2px;
}

.news-title-zh {
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 40px;
}

.news-categories {
    list-style: none;
    padding: 0;
    margin: 0;
}

.news-categories li {
    margin-bottom: 20px;
}

.news-categories a {
    display: block;
    padding: 12px 0;
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    border-left: 3px solid transparent;
    padding-left: 16px;
    font-size: 1rem;
}

.news-categories a.active,
.news-categories a:hover {
    color: var(--primary-color);
    border-left-color: var(--primary-color);
}

/* 新闻内容网格布局 */
.news-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px 60px;
}

.news-item {
    display: flex;
    gap: 20px;
    background: white;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
    transition: var(--transition);
    align-items: flex-start;
}

.news-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.12);
}

.news-date {
    min-width: 80px;
    text-align: left;
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    padding-bottom: 20px;
    position: relative;
}

.news-date::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 22%;
    transform: translateX(-50%);
    width: 40px;
    height: 2px;
    background: var(--primary-color);
}

.news-date-main {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--primary-color);
    line-height: 1;
    margin-bottom: 10px;
}

.news-date-year {
    font-size: 0.8rem;
    font-weight: 400;
    color: var(--text-light);
    line-height: 1;
}

.news-info {
    flex: 1;
}

.news-info h4 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 12px;
    line-height: 1.4;
}

.news-info p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.6;
}

/* 新闻导航圆点 */
.news-navigation {
    position: absolute;
    left: 200px;
    bottom: 80px;
    z-index: 10;
}

.news-nav-dot {
    width: 60px;
    height: 60px;
    background: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.2rem;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: 0 4px 20px rgba(0, 40, 120, 0.3);
}

.news-nav-dot:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 25px rgba(0, 40, 120, 0.4);
}

.news-container {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 60px;
    margin-bottom: 60px;
}

.featured-news {
    background: white;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow-light);
    transition: var(--transition);
}

.featured-news:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-heavy);
}

.featured-news .news-image {
    position: relative;
    height: 300px;
    overflow: hidden;
}

.featured-news .news-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

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

.news-category {
    position: absolute;
    top: 20px;
    left: 20px;
    background: var(--primary-color);
    color: white;
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.featured-news .news-content {
    padding: 40px;
}

.news-meta {
    margin-bottom: 16px;
}

.news-date {
    color: var(--text-light);
    font-size: 14px;
}

.featured-news h3 {
    font-size: 1.8rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 16px;
    line-height: 1.3;
}

.featured-news p {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 24px;
}

.read-more {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: var(--transition);
}

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

.news-list {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.news-item {
    background: white;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow-light);
    transition: var(--transition);
    display: grid;
    grid-template-columns: 100px 1fr;
    gap: 0;
    min-height: 120px;
    text-decoration: none;
}

.news-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-medium);
}

.news-item .news-image {
    height: 100%;
    overflow: hidden;
    min-height: 120px;
}

.news-item .news-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

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

.news-item .news-content {
    padding: 20px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 0;
}

.news-item .news-content {
    padding: 20px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.news-item .news-meta {
    display: flex;
    gap: 12px;
    align-items: center;
    margin-bottom: 8px;
}

.news-item .news-category {
    position: static;
    background: var(--bg-secondary);
    color: var(--primary-color);
    padding: 4px 8px;
    font-size: 11px;
}

.news-item h4 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
    line-height: 1.4;
}

.news-item p {
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-more {
    text-align: center;
}



/* 页脚 */
.footer {
    background: var(--bg-dark);
    color: white;
    padding: 80px 0 0;
    width: 100%;
}

.footer-content {
    margin-bottom: 60px;
}

.footer-main {
    display: grid;
    grid-template-columns: 1.2fr 2.5fr;
    gap: 60px;
    margin-bottom: 60px;
}

.footer-logo {
    max-width: 450px;
}

.footer-logo {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.footer-logo .footer-logo-img {
    height: 50px;
    width: auto;
    margin-bottom: 16px;
}

.footer-logo p {
    color: #cccccc;
    line-height: 1.6;
    margin-bottom: 32px;
}

.footer-links {
    display: grid;
    grid-template-columns: 1.2fr 1fr 1fr 1.3fr;
    gap: 50px;
}

.footer-section h4 {
    color: white;
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 20px;
}

.footer-section ul {
    list-style: none;
}

.footer-section li {
    margin-bottom: 9px;
}

.footer-section a {
    color: #cccccc;
    text-decoration: none;
    font-size: 13px;
    transition: var(--transition);
    word-break: keep-all;
    white-space: nowrap;
}

.footer-section a:hover {
    color: var(--accent-color);
}

.contact-info p {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
    color: #cccccc;
    font-size: 14px;
}

.contact-info i {
    color: var(--accent-color);
    width: 16px;
}

.social-links {
    display: flex;
    gap: 16px;
    margin-top: 8px;
}

.social-links a {
    width: 44px;
    height: 44px;
    background: #333333;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.social-links a:hover {
    background: var(--primary-color);
    transform: translateY(-2px);
}

.footer-bottom {
    border-top: 1px solid #333333;
    padding: 32px 0;
}

.footer-bottom-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-bottom p {
    color: #999999;
    font-size: 14px;
}

.footer-bottom-links {
    display: flex;
    gap: 24px;
}

.footer-bottom-links a {
    color: #999999;
    text-decoration: none;
    font-size: 14px;
    transition: var(--transition);
}

.footer-bottom-links a:hover {
    color: var(--accent-color);
}

/* 碳路中国 钠是未来 区域 */
.carbon-future-section {
    position: relative;
    height: 80vh; /* 全屏高度 */
    min-height: 600px;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    /* 背景图设置 */
    background-image: url('/public/static/img/indexc.jpg');
    background-size: cover; /* 覆盖整个区域 */
    background-position: center center; /* 居中显示 */
    background-attachment: fixed; /* 固定背景，实现视差效果 */
    background-repeat: no-repeat; /* 不重复 */
}

/* 添加深色遮罩层 */
.carbon-future-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.2); /* 轻微的深色遮罩 */
    z-index: 1;
}

/* 应用场景区域 */
.applications-section {
    position: relative;
    padding: 120px 0 0 0;
    overflow: hidden;
    min-height: 600px;
}

.applications-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.applications-bg-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.applications-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(0, 40, 120, 0.65) 0%, rgba(0, 102, 204, 0.45) 100%);
    z-index: 2;
}

.applications-content {
    position: relative;
    z-index: 3;
    color: white;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    min-height: 500px;
}

.applications-header {
    margin-bottom: 30px;
}

.applications-title-en {
    font-size: 2.2rem;
    font-weight: 300;
    letter-spacing: 3px;
    margin-bottom: 8px;
    opacity: 0.9;
    line-height: 100%;
}

.applications-title-zh {
    font-size: 1.4rem;
    font-weight: 600;
    margin-bottom: 0;
}

/* 应用场景列表 - 紧跟在标题下方 */
.applications-list {
    display: flex;
    flex-direction: column;
    gap: 15px;
    margin-bottom: 60px;
}

.application-category {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 15px 0;
    background: transparent;
    border-radius: 0;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    position: relative;
}

.application-category:hover {
    background: transparent;
    transform: none;
}

.application-category.active .category-name::after {
    content: '';
    position: absolute;
    bottom: -6px;
    left: 0;
    width: 100%;
    height: 3px;
    background: white;
}

.category-icon {
    width: 32px;
    height: 32px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    color: white;
    flex-shrink: 0;
}

.category-name {
    font-size: 1.1rem;
    font-weight: 500;
    color: white;
    position: relative;
}

/* 右下角场景介绍 */
.applications-detail {
    position: absolute;
    bottom: 0;
    right: 0;
    left: 50%;
    background: rgba(0, 40, 120, 0.9);
    padding: 0;
    border-radius: 20px 0 0 0;
    backdrop-filter: blur(10px);
    border: none;
    height: auto;
    min-height: 200px;
    z-index: 999;
}

.applications-detail .detail-content {
    max-width: 600px;
    margin-left: auto;
    margin-right: max(100px, calc((100vw - 1440px) / 2 + 100px));
    padding: 40px 0;
    padding-left: 40px;
    text-align: left;
}

.applications-detail .detail-content {
    display: none;
}

.applications-detail .detail-content.active {
    display: block;
}

.applications-detail .detail-content h4 {
    font-size: 1.3rem;
    font-weight: 600;
    color: white;
    margin-bottom: 15px;
}

.applications-detail .detail-content p {
    font-size: 0.9rem;
    line-height: 1.6;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 20px;
}

.detail-features {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-bottom: 20px;
}

.feature-tag {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    padding: 4px 12px;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 500;
}

.detail-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: white;
    text-decoration: none;
    font-weight: 500;
    font-size: 0.9rem;
    padding: 8px 16px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 6px;
    transition: var(--transition);
}

.detail-link:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-1px);
}

/* 党建工作区域 */
.party-section {
    padding: 120px 0;
    background: white;
}

.party-layout {
    display: grid;
    grid-template-columns: 400px 1fr;
    gap: 80px;
    align-items: start;
}

.party-image {
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow-medium);
}

.party-img {
    width: 100%;
    height: 500px;
    object-fit: cover;
}

.party-content {
    padding-top: 20px;
}

.party-title-en {
    font-size: 2.5rem;
    font-weight: 300;
    color: var(--text-light);
    margin-bottom: 8px;
    letter-spacing: 2px;
}

.party-title-zh {
    font-size: 1.8rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 30px;
}

.party-description {
    margin-bottom: 40px;
}

.party-description p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

.party-activities {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.activity-item {
    display: flex;
    gap: 20px;
    padding: 20px 0;
    border-bottom: 1px solid var(--border-color);
}

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

.activity-date {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--primary-color);
    min-width: 60px;
    text-align: center;
}

.activity-content h4 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
    line-height: 1.4;
}

.activity-content p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.6;
}

/* 关于我们区域 */
.about-section {
    position: relative;
    padding: 120px 0;
    overflow: hidden;
    min-height: 600px;
}

.about-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.about-bg-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.about-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    /*background: linear-gradient(135deg, rgba(0, 40, 120, 0.85) 0%, rgba(0, 102, 204, 0.75) 100%);*/
    z-index: 2;
}

.about-content {
    position: relative;
    z-index: 3;
    color: white;
    max-width: 700px;
    background: rgba(0, 40, 120, 0.5);
    padding: 60px 50px;
    border-radius: 20px;
    backdrop-filter: blur(10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.about-title-en {
    font-size: 2.2rem;
    font-weight: 300;
    letter-spacing: 3px;
    margin-bottom: 16px;
    opacity: 0.9;
    line-height: 100%;
}

.about-title-zh {
    font-size: 1.4rem;
    font-weight: 600;
    margin-bottom: 40px;
}

.about-description p {
    font-size: 1rem;
    line-height: 1.8;
    margin-bottom: 30px;
    opacity: 0.9;
}

/* 合作伙伴区域 */
.partners-section {
    padding: 80px 0;
    background: var(--bg-secondary);
}

.partners-content {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
    max-width: 800px;
    margin: 0 auto;
}

.partner-item {
    background: white;
    padding: 40px 30px;
    border-radius: 16px;
    text-align: center;
    box-shadow: var(--shadow-light);
    transition: var(--transition);
}

.partner-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-medium);
}

.partner-icon {
    width: 80px;
    height: 80px;
    background: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    color: white;
    font-size: 2rem;
}

.partner-item h4 {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.partner-item p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* 碳路中国 - 内容区域 */
.carbon-content {
    position: relative;
    z-index: 3; /* 在遮罩层之上 */
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column; /* 改为纵向排列 */
    align-items: center;
    justify-content: center;
    gap: 40px; /* 文字和按钮之间的间距 */
}

.carbon-text {
    text-align: center;
}

.carbon-text h2 {
    font-size: 3.5rem; /* 大标题字体 */
    font-weight: 600;
    color: white;
    letter-spacing: 8px; /* 字间距 */
    line-height: 1.5;
    text-shadow: 0 4px 12px rgba(0, 0, 0, 0.3); /* 文字阴影 */
    margin: 0;
}

/* 碳路中国 - 按钮（带文字） */
.carbon-button {
    position: relative; /* 改为相对定位，自然居中 */
    padding: 16px 32px; /* 内边距 */
    background: rgba(0, 40, 120, 0.85); /* 主色调蓝色，半透明 */
    border-radius: 50px; /* 圆角矩形 */
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px; /* 文字和箭头之间的间距 */
    color: white;
    font-size: 1.1rem; /* 文字大小 */
    font-weight: 500;
    text-decoration: none;
    transition: all 0.3s ease;
    box-shadow: 0 4px 20px rgba(0, 40, 120, 0.4); /* 蓝色阴影 */
    white-space: nowrap; /* 不换行 */
}

.carbon-button:hover {
    background: rgba(0, 40, 120, 1); /* 悬停时变为不透明 */
    transform: translateY(-2px); /* 悬停时向上移动 */
    box-shadow: 0 6px 30px rgba(0, 40, 120, 0.6); /* 更强的阴影 */
}

.carbon-button span {
    font-weight: 500;
    letter-spacing: 1px; /* 字间距 */
}

.carbon-button i {
    font-size: 1rem;
    transition: transform 0.3s ease;
}

.carbon-button:hover i {
    transform: translateX(4px); /* 悬停时箭头向右移动 */
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .container {
        padding: 0 50px;
    }
    
    .nav-container {
        padding: 0 50px;
    }
    
    /* 中等屏幕导航优化 */
    .nav-menu {
        gap: 24px;
    }
    
    .nav-contact {
        margin-right: 12px;
        font-size: 13px;
    }
    
    .nav-contact span {
        display: none; /* 隐藏电话号码，只显示图标 */
    }
    
    .nav-actions {
        gap: 10px;
    }
    
    .hero-stats {
        gap: 40px;
    }
    
    .stat-number {
        font-size: 2rem;
    }
    
    .products-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 32px;
    }
    
    .applications-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .application-item {
        grid-template-columns: 1fr;
        gap: 0;
    }
    
    .application-item:nth-child(even) {
        direction: ltr;
    }
    
    .news-container {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .footer-main {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .footer-links {
        grid-template-columns: repeat(2, 1fr);
        gap: 32px;
    }
}

@media (max-width: 768px) {
    .container {
        padding: 0 20px;
    }
    
    .nav-container {
        padding: 0 20px;
        height: 68px;
        gap: 12px;
    }
    
    .nav-contact {
        margin-right: 12px;
        font-size: 0.9rem;
    }
    
    .nav-menu {
        position: absolute;
        top: calc(100% + 1px);
        left: 0;
        right: 0;
        width: auto;
        display: none;
        flex-direction: column;
        gap: 0;
        background: rgba(255, 255, 255, 0.97);
        padding: 16px 20px 24px;
        border-top: 1px solid var(--border-color);
        box-shadow: var(--shadow-medium);
        max-height: calc(100vh - 68px);
        overflow-y: auto;
        z-index: 1200;
    }
    
    .nav-menu.active {
        display: flex;
    }
    
    .nav-item {
        width: 100%;
    }
    
    .nav-item > a {
        width: 100%;
        justify-content: space-between;
        padding: 12px 0;
        border-bottom: 1px solid #f1f1f1;
    }
    
    .nav-item:last-child > a {
        border-bottom: none;
    }
    
    .nav-logo .logo-img {
        height: 36px;
    }
    
    .nav-actions {
        gap: 8px;
        margin-left: auto;
    }
    
    .nav-contact {
        display: none; /* 在小屏幕隐藏电话号码 */
    }
    
    .language-dropdown .language-link {
        width: 32px;
        height: 32px;
        font-size: 16px;
    }
    
    .search-icon {
        width: 32px;
        height: 32px;
        font-size: 16px;
    }
    
    .cart-icon {
        width: 32px;
        height: 32px;
        font-size: 16px;
    }
    
    .cart-icon .cart-badge {
        top: 0;
        right: 0;
        font-size: 10px;
        padding: 1px 4px;
        min-width: 16px;
    }
    
    /* 响应式：登录按钮 */
    .login-btn {
        padding: 6px 12px;
        font-size: 13px;
    }
    
    .login-btn span {
        display: none; /* 小屏幕只显示图标 */
    }
    
    .login-btn i {
        font-size: 16px;
    }
    
    .nav-user-info .user-avatar {
        width: 24px;
        height: 24px;
    }
    
    .nav-user-info .user-link {
        padding: 4px 8px;
        font-size: 13px;
    }
    
    .nav-user-info .user-name {
        display: none; /* 小屏幕只显示头像 */
    }
    
    .nav-toggle {
        display: flex;
        margin-left: 12px;
    }
    
    .nav-item.dropdown .dropdown-menu {
        position: static;
        opacity: 1;
        visibility: hidden;
        transform: none;
        max-height: 0;
        overflow: hidden;
        border: none;
        box-shadow: none;
        padding: 0;
        margin-top: 0;
        background: transparent;
        transition: max-height 0.3s ease;
    }
    
    .nav-item.dropdown.open .dropdown-menu {
        visibility: visible;
        max-height: 400px;
        padding: 8px 0 0 12px;
    }
    
    .nav-item.dropdown .dropdown-menu a {
        padding: 10px 0 10px 12px;
        color: var(--text-primary);
    }
    
    .nav-item.dropdown .dropdown-menu a:hover {
        background: transparent;
        color: var(--primary-color);
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 24px;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 100%;
        max-width: 280px;
        justify-content: center;
    }
    
    section {
        padding: 80px 0;
    }
    
    .section-header {
        margin-bottom: 60px;
    }
    
    .products-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    
    .applications-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .product-tabs {
        width: 100%;
        justify-content: stretch;
    }
    
    .tab-btn {
        flex: 1;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
        gap: 24px;
        text-align: center;
    }
    
    .footer-bottom-content {
        flex-direction: column;
        gap: 16px;
        text-align: center;
    }
    
    /* 新闻动态响应式 */
    .news-layout {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .news-sidebar {
        position: static;
        order: 2;
        padding: 30px 20px;
    }
    
    .news-content {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    /* 应用场景响应式 */
    .applications-content {
        max-width: 100%;
        min-height: auto;
    }
    
    .applications-detail {
        position: static;
        width: 100%;
        left: auto;
        right: auto;
        margin-top: 30px;
        border-radius: 12px;
    }
    
        .applications-detail .detail-content {
            max-width: 100%;
            margin: 0;
            padding: 30px 20px;
        }

        /* 产品展示区域响应式 */
        .products-section {
            padding: 80px 0;
        }

        .products-header {
            margin-bottom: 60px;
        }

        .products-title-en {
            font-size: 1.8rem;
            letter-spacing: 2px;
        }

        .products-title-zh {
            font-size: 1.2rem;
        }

        .products-grid {
            grid-template-columns: 1fr;
            gap: 30px;
        }

        .product-tabs {
            margin-bottom: 50px;
            padding: 6px;
        }

        .tab-btn {
            padding: 10px 24px;
            font-size: 14px;
        }

        /* 关于我们区域响应式 */
        .about-title-en {
            font-size: 1.8rem;
            letter-spacing: 2px;
        }

        .about-title-zh {
            font-size: 1.2rem;
        }

        .about-content {
            max-width: 90%;
            padding: 40px 30px;
            margin: 0 auto;
        }

        /* 主横幅响应式 */
        .hero {
            height: 50vh;
        }

        .hero-banner-title {
            font-size: 2rem;
            letter-spacing: 1px;
        }
    
    .applications-list {
        margin-bottom: 20px;
    }
    
    /* 碳路中国区域响应式 */
    .carbon-future-section {
        height: 60vh;
        min-height: 400px;
    }
    
    .carbon-content {
        gap: 30px; /* 移动端间距稍小 */
    }
    
    .carbon-text h2 {
        font-size: 2rem;
        letter-spacing: 4px;
    }
    
    .carbon-button {
        padding: 14px 28px; /* 移动端稍小的内边距 */
        font-size: 1rem;
    }
    
    .carbon-button:hover {
        transform: translateY(-2px);
    }
    
    /* 党建工作响应式 */
    .party-layout {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .party-img {
        height: 300px;
    }
    
    /* 合作伙伴响应式 */
    .partners-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .news-item .news-image {
        height: 200px;
    }
    
    .news-item .news-content {
        padding: 20px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }
    
    .nav-container {
        padding: 0 16px;
        height: 70px;
        gap: 10px;
    }
    
    .nav-contact {
        display: none;
    }
    
    .language-switch {
        display: none;
    }
    
    .nav-actions {
        gap: 0;
    }
    
    .nav-actions .search-icon {
        display: none;
    }
    
    .nav-toggle {
        margin-left: auto;
    }
    
    .nav-menu {
        padding: 12px 16px 20px;
        max-height: calc(100vh - 70px);
    }
    
    .hero {
        height: 100vh;
        padding: 0 16px;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .section-header h2 {
        font-size: 1.8rem;
    }
    
    .product-card {
        margin: 0;
    }
    
    .product-info {
        padding: 24px 20px;
    }
    
    .app-content {
        padding: 24px 20px;
    }
}

/* 滚动动画 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

/* 平滑滚动 */
html {
    scroll-behavior: smooth;
}

/* 加载状态 */
.loading {
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.6s ease;
}

.loading.loaded {
    opacity: 1;
    transform: translateY(0);
}