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

/* CSS 变量定义 */
:root {
    /* 主色调 - 现代蓝色系 */
    --primary-color: #0070f3;
    --primary-dark: #0050c3;
    --primary-light: #3291ff;
    --primary-alpha: rgba(0, 112, 243, 0.1);
    --primary-gradient: linear-gradient(135deg, #0070f3 0%, #3291ff 100%);
    
    /* 辅助色 */
    --secondary-color: #10b981;
    --secondary-dark: #059669;
    --secondary-light: #34d399;
    --secondary-gradient: linear-gradient(135deg, #10b981 0%, #34d399 100%);
    
    /* 强调色 */
    --accent-color: #f59e0b;
    --accent-dark: #d97706;
    --accent-light: #fbbf24;
    --accent-gradient: linear-gradient(135deg, #f59e0b 0%, #fbbf24 100%);
    
    /* 中性色 */
    --dark-color: #111827;
    --dark-gray: #374151;
    --medium-gray: #6b7280;
    --light-gray: #9ca3af;
    --very-light-gray: #f9fafb;
    --white: #ffffff;
    
    /* 字体 */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-secondary: 'Inter', Arial, sans-serif;
    
    /* 字体大小 */
    --text-xs: 12px;
    --text-sm: 14px;
    --text-base: 16px;
    --text-lg: 18px;
    --text-xl: 20px;
    --text-2xl: 24px;
    --text-3xl: 30px;
    --text-4xl: 36px;
    --text-5xl: 48px;
    --text-6xl: 60px;
    
    /* 间距 */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-2xl: 48px;
    --spacing-3xl: 64px;
    --spacing-4xl: 96px;
    
    /* 圆角 */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 14px;
    --radius-xl: 18px;
    --radius-2xl: 24px;
    --radius-full: 50%;
    
    /* 阴影 */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.08), 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1), 0 4px 6px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.1), 0 10px 10px rgba(0, 0, 0, 0.04);
    --shadow-2xl: 0 25px 50px rgba(0, 0, 0, 0.15);
    
    /* 过渡 */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* 深度层级 */
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal-backdrop: 1040;
    --z-modal: 1050;
    --z-popover: 1060;
    --z-tooltip: 1070;
}

/* 全局样式 */
body {
    font-family: var(--font-primary);
    line-height: 1.6;
    color: var(--dark-gray);
    background-color: var(--white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* 懒加载图片样式 */
img.lazy {
    opacity: 0;
    transform: scale(0.95);
    transition: opacity 0.5s ease, transform 0.5s ease;
    background-color: var(--very-light-gray);
    border-radius: var(--radius-md);
}

img.lazy.loaded {
    opacity: 1;
    transform: scale(1);
}

/* 图片容器样式 */
.image-container {
    position: relative;
    overflow: hidden;
    background-color: var(--very-light-gray);
    border-radius: var(--radius-lg);
}

.service-icon {
    position: relative;
    overflow: hidden;
    background-color: var(--primary-alpha);
    border-radius: var(--radius-full);
}

/* 容器样式 */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

/* 导航栏样式 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    z-index: 1000;
    transition: all var(--transition-normal);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) var(--spacing-lg);
}

.logo-link {
    display: inline-block;
    text-decoration: none;
    color: var(--dark-color);
    font-weight: 700;
    font-size: var(--text-2xl);
    transition: color var(--transition-fast);
}

.logo-image {
    width: 80px;
    height: auto;
    display: block;
}

.logo-link:hover {
    color: var(--primary-color);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    margin-left: 10%;
    flex-wrap: nowrap;
    white-space: nowrap;
}

.nav-links .nav-button:last-child {
    margin-left: var(--spacing-sm);
}

.nav-links .nav-button:nth-last-child(2) {
    margin-left: var(--spacing-xl);
}

.nav-link {
    text-decoration: none;
    color: var(--dark-color);
    font-weight: 500;
    font-size: 16px;
    transition: all var(--transition-fast);
    position: relative;
    padding: var(--spacing-sm) 0;
    white-space: nowrap;
}

.nav-link:hover {
    color: var(--primary-color);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    transition: width var(--transition-fast);
}

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

.nav-button {
    text-decoration: none;
    background-color: var(--primary-color);
    color: var(--white);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    font-weight: 500;
    font-size: 16px;
    transition: all var(--transition-fast);
    box-shadow: var(--shadow-sm);
    white-space: nowrap;
}

.nav-button:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    color: var(--white);
}

.mobile-menu {
    display: none;
}

.menu-toggle {
    background: none;
    border: none;
    font-size: var(--text-2xl);
    color: var(--dark-color);
    cursor: pointer;
    transition: color var(--transition-fast);
}

.menu-toggle:hover {
    color: var(--primary-color);
}

/* 首页横幅样式 - 重新设计 */
.hero {
    background: linear-gradient(135deg, #f5f7fa 0%, #e4eaf1 100%);
    min-height: 53vh;
    display: flex;
    align-items: flex-start;
    padding-top: calc(53vh * 0.35);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(0, 112, 243, 0.1) 0%, transparent 70%);
    z-index: 0;
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0% {
        transform: translate(0, 0) rotate(0deg);
    }
    50% {
        transform: translate(-10px, -10px) rotate(5deg);
    }
    100% {
        transform: translate(0, 0) rotate(0deg);
    }
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-4xl);
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-content {
    max-width: 550px;
}

.hero-title {
    font-size: var(--text-6xl);
    font-weight: 700;
    line-height: 1.1;
    color: var(--dark-color);
    margin-bottom: var(--spacing-xl);
    animation: fadeInUp 1s ease-out;
    background: linear-gradient(135deg, var(--dark-color) 0%, var(--primary-dark) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: var(--text-xl);
    color: var(--medium-gray);
    margin-bottom: var(--spacing-2xl);
    animation: fadeInUp 1s ease-out 0.2s both;
    line-height: 1.6;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-3xl);
    animation: fadeInUp 1s ease-out 0.4s both;
}

.hero-buttons .btn-primary,
.hero-buttons .btn-secondary {
    padding: var(--spacing-lg) var(--spacing-2xl);
    font-size: var(--text-lg);
}

.hero-stats {
    display: flex;
    gap: var(--spacing-2xl);
    padding-top: var(--spacing-xl);
    border-top: 1px solid rgba(0, 0, 0, 0.08);
    animation: fadeInUp 1s ease-out 0.6s both;
}

.stat-item {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.stat-number {
    font-size: var(--text-3xl);
    font-weight: 700;
    color: var(--primary-color);
    font-family: var(--font-primary);
}

.stat-label {
    font-size: var(--text-base);
    color: var(--medium-gray);
    margin-top: var(--spacing-xs);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.hero-image {
    position: relative;
    animation: fadeInRight 1s ease-out;
    border-radius: var(--radius-2xl);
    overflow: hidden;
    box-shadow: var(--shadow-2xl);
    transform: perspective(1000px) rotateY(-5deg) rotateX(5deg);
    transition: transform 0.5s ease;
    max-height: 600px;
}

.hero-image:hover {
    transform: perspective(1000px) rotateY(0) rotateX(0);
}

.hero-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: var(--radius-2xl);
    transition: transform 0.5s ease;
}

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

/* 按钮样式 */
.btn-primary {
    background: var(--primary-gradient);
    color: var(--white);
    padding: var(--spacing-md) calc(var(--spacing-xl) * 0.67);
    border: none;
    border-radius: var(--radius-md);
    font-size: var(--text-base);
    font-weight: 700;
    cursor: pointer;
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-sm);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    position: relative;
    overflow: hidden;
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left var(--transition-slow);
}

.btn-primary:hover::before {
    left: 100%;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-secondary {
    background-color: var(--white);
    color: var(--primary-color);
    padding: var(--spacing-md) var(--spacing-xl);
    border: 1px solid var(--primary-light);
    border-radius: var(--radius-md);
    font-size: var(--text-base);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-sm);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    position: relative;
    overflow: hidden;
    white-space: nowrap;
}

.btn-secondary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: var(--primary-gradient);
    opacity: 0;
    transition: all var(--transition-normal);
    z-index: 0;
}

.btn-secondary:hover::before {
    left: 0;
    opacity: 0.1;
}

.btn-secondary:hover {
    border-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-secondary:active {
    transform: translateY(0);
}

.btn-outline {
    background-color: transparent;
    color: var(--primary-color);
    padding: var(--spacing-sm) var(--spacing-lg);
    border: 1px solid var(--primary-light);
    border-radius: var(--radius-md);
    font-size: var(--text-sm);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-normal);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    position: relative;
    overflow: hidden;
    white-space: nowrap;
}

.btn-outline::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: var(--primary-gradient);
    opacity: 0;
    transition: all var(--transition-normal);
    z-index: 0;
}

.btn-outline:hover::before {
    left: 0;
    opacity: 0.1;
}

.btn-outline:hover {
    border-color: var(--primary-color);
    transform: translateY(-1px);
}

.btn-outline:active {
    transform: translateY(0);
}

/* 通用部分样式 */
.section-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.section-title {
    font-size: var(--text-3xl);
    font-weight: 700;
    color: var(--dark-color);
    margin-bottom: var(--spacing-sm);
}

.section-subtitle {
    font-size: var(--text-lg);
    color: var(--medium-gray);
    max-width: 600px;
    margin: 0 auto;
}

/* 关于我们部分样式 */
.about {
    padding: var(--spacing-3xl) 0;
    background-color: var(--white);
    margin-top: 80px;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
}

.about-image {
    position: relative;
    animation: fadeInLeft 1s ease-out;
}

.about-image img {
    width: 100%;
    height: auto;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
}

.about-text {
    animation: fadeInRight 1s ease-out;
}

.about-title {
    font-size: var(--text-2xl);
    font-weight: 600;
    color: var(--dark-color);
    margin-bottom: var(--spacing-lg);
}

.about-description {
    font-size: var(--text-base);
    color: var(--medium-gray);
    line-height: 1.7;
    margin-bottom: var(--spacing-lg);
}

.about-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.feature-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.feature-icon {
    background-color: var(--primary-alpha);
    color: var(--primary-color);
    width: 24px;
    height: 24px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--text-sm);
    font-weight: 700;
}

.feature-text {
    font-size: var(--text-sm);
    color: var(--medium-gray);
}

/* 服务部分样式 */
.services {
    padding: var(--spacing-3xl) 0;
    background-color: var(--very-light-gray);
    margin-top: 80px;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-xl);
}

@media (min-width: 1200px) {
    .services-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

.service-card {
    background-color: var(--white);
    padding: var(--spacing-2xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(0, 0, 0, 0.05);
    backdrop-filter: blur(10px);
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--primary-gradient);
    transform: scaleX(0);
    transition: transform var(--transition-normal);
}

.service-card:hover::before {
    transform: scaleX(1);
}

.service-card:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-light);
}

.service-icon {
    width: 80px;
    height: 80px;
    border-radius: var(--radius-full);
    background-color: var(--primary-alpha);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-lg);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.service-icon::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: var(--primary-gradient);
    transition: all var(--transition-normal);
    z-index: 0;
}

.service-card:hover .service-icon {
    background-color: var(--primary-color);
    transform: scale(1.1);
}

.service-card:hover .service-icon::before {
    left: 0;
}

.service-icon img {
    width: 40px;
    height: 40px;
    object-fit: contain;
    position: relative;
    z-index: 1;
    transition: all var(--transition-normal);
}

.service-card:hover .service-icon img {
    filter: brightness(0) invert(1);
    transform: rotate(15deg);
}

.service-title {
    font-size: var(--text-xl);
    font-weight: 600;
    color: var(--dark-color);
    margin-bottom: var(--spacing-md);
    transition: color var(--transition-fast);
    position: relative;
    z-index: 1;
}

.service-card:hover .service-title {
    color: var(--primary-color);
}

.service-description {
    font-size: var(--text-base);
    color: var(--medium-gray);
    line-height: 1.6;
    margin-bottom: var(--spacing-lg);
    position: relative;
    z-index: 1;
}

.service-link {
    text-decoration: none;
    color: var(--primary-color);
    font-size: var(--text-sm);
    font-weight: 500;
    transition: all var(--transition-fast);
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    position: relative;
    z-index: 1;
}

.service-card:hover .service-link {
    transform: translateX(10px);
}

.service-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-gradient);
    transition: width var(--transition-fast);
}

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

/* 产品部分样式 */
.products {
    padding: var(--spacing-3xl) 0;
    background-color: var(--white);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-xl);
}

@media (min-width: 992px) {
    .products-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.product-card {
    background-color: var(--white);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
    border: 1px solid rgba(0, 0, 0, 0.05);
    position: relative;
    backdrop-filter: blur(10px);
}

.product-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--accent-gradient);
    transform: scaleX(0);
    transition: transform var(--transition-normal);
}

.product-card:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: var(--shadow-xl);
    border-color: var(--accent-light);
}

.product-card:hover::before {
    transform: scaleX(1);
}

.image-container {
    position: relative;
    overflow: hidden;
    height: 200px;
}

.image-container img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow), filter var(--transition-normal);
}

.product-card:hover .image-container img {
    transform: scale(1.1);
    filter: brightness(1.05);
}

.image-container::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(0, 112, 243, 0.1) 0%, rgba(16, 185, 129, 0.1) 100%);
    opacity: 0;
    transition: opacity var(--transition-normal);
    z-index: 1;
}

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

.product-badge {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    background: var(--accent-gradient);
    color: var(--white);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    font-size: var(--text-xs);
    font-weight: 600;
    z-index: 2;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
}

.product-card:hover .product-badge {
    transform: scale(1.1);
    box-shadow: var(--shadow-md);
}

.product-content {
    padding: var(--spacing-xl);
    position: relative;
    z-index: 1;
}

.product-title {
    font-size: var(--text-xl);
    font-weight: 600;
    color: var(--dark-color);
    margin-bottom: var(--spacing-sm);
    transition: color var(--transition-fast);
}

.product-card:hover .product-title {
    color: var(--accent-color);
}

.product-description {
    font-size: var(--text-sm);
    color: var(--medium-gray);
    line-height: 1.6;
    margin-bottom: var(--spacing-lg);
    transition: color var(--transition-fast);
}

.product-card:hover .product-description {
    color: var(--dark-gray);
}

.product-features {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-lg);
}

.feature-tag {
    background-color: var(--very-light-gray);
    color: var(--medium-gray);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    font-size: var(--text-xs);
    transition: all var(--transition-normal);
}

.product-card:hover .feature-tag {
    background-color: var(--accent-alpha, rgba(245, 158, 11, 0.1));
    color: var(--accent-color);
    transform: translateY(-2px);
}

.product-buttons {
    display: flex;
    gap: var(--spacing-sm);
    transition: all var(--transition-normal);
}

.product-card:hover .product-buttons {
    gap: var(--spacing-md);
}

/* 联系我们部分样式 */
.contact {
    padding: var(--spacing-3xl) 0;
    background-color: var(--very-light-gray);
    margin-top: 80px;
}

/* 人才招聘部分样式 */
.careers {
    padding: var(--spacing-3xl) 0;
    background-color: var(--white);
    margin-top: 80px;
}

.careers-content {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
}

.job-listings {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
}

.careers-intro {
    background-color: var(--very-light-gray);
    padding: var(--spacing-2xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
}

.careers-title {
    font-size: var(--text-2xl);
    font-weight: 600;
    color: var(--dark-color);
    margin-bottom: var(--spacing-lg);
}

.careers-description {
    font-size: var(--text-base);
    color: var(--medium-gray);
    line-height: 1.7;
    margin-bottom: var(--spacing-xl);
}

.benefits-title {
    font-size: var(--text-lg);
    font-weight: 600;
    color: var(--dark-color);
    margin-bottom: var(--spacing-lg);
}

.benefits-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.benefit-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
}

.benefit-icon {
    background-color: var(--primary-alpha);
    color: var(--primary-color);
    width: 24px;
    height: 24px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--text-sm);
    font-weight: 700;
    margin-top: 2px;
    flex-shrink: 0;
}

.benefit-text {
    font-size: var(--text-base);
    color: var(--medium-gray);
}

.job-listings {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
}

.jobs-title {
    font-size: var(--text-2xl);
    font-weight: 600;
    color: var(--dark-color);
    margin-bottom: var(--spacing-lg);
}

.job-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
}

/* 分页样式 */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-2xl);
}

.pagination button {
    background-color: var(--white);
    color: var(--medium-gray);
    border: 1px solid rgba(0, 0, 0, 0.05);
    border-radius: var(--radius-md);
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: var(--text-base);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-sm);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
}

.pagination button:hover {
    background-color: var(--primary-color);
    color: var(--white);
    border-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.pagination button.active {
    background-color: var(--primary-color);
    color: var(--white);
    border-color: var(--primary-color);
}

.pagination button:disabled {
    background-color: var(--very-light-gray);
    color: var(--light-gray);
    border-color: rgba(0, 0, 0, 0.05);
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.more-products .btn-outline {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 50px;
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: var(--text-lg);
    font-weight: 600;
    border: 2px solid var(--primary-color);
    border-radius: var(--radius-lg);
    background-color: var(--white);
    color: var(--primary-color);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
    line-height: 1;
    position: relative;
    overflow: hidden;
    gap: var(--spacing-sm);
    transform: translateY(40%);
}

.more-products .btn-outline::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: var(--primary-gradient);
    transition: left var(--transition-slow);
    z-index: 0;
}

.more-products .btn-outline span {
    position: relative;
    z-index: 1;
}

.more-products .btn-outline:hover {
    color: var(--white);
    border-color: var(--primary-color);
    transform: translateY(40%) translateY(-4px) scale(1.05);
    box-shadow: var(--shadow-xl);
    z-index: 1;
}

.more-products .btn-outline:hover::before {
    left: 0;
    z-index: -1;
}

.more-products .btn-outline:active {
    transform: translateY(40%);
}

.more-products .btn-outline:hover::after {
    content: '→';
    position: absolute;
    right: 15px;
    transition: right var(--transition-normal);
    animation: arrowMove 0.5s ease-in-out infinite;
}

@keyframes arrowMove {
    0% {
        transform: translateX(0);
    }
    50% {
        transform: translateX(5px);
    }
    100% {
        transform: translateX(0);
    }
}

.job-card {
    background-color: var(--white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
    border: 1px solid rgba(0, 0, 0, 0.05);
    transition: all var(--transition-normal);
}

.job-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-light);
}

.job-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
}

.job-title {
    font-size: var(--text-xl);
    font-weight: 600;
    color: var(--dark-color);
}

.job-salary {
    background-color: var(--primary-alpha);
    color: var(--primary-color);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    font-size: var(--text-sm);
    font-weight: 500;
}

.job-info {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    flex-wrap: wrap;
}

.job-location, .job-experience, .job-education {
    background-color: var(--very-light-gray);
    color: var(--medium-gray);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    font-size: var(--text-xs);
}

.job-description {
    font-size: var(--text-base);
    color: var(--medium-gray);
    line-height: 1.6;
    margin-bottom: var(--spacing-lg);
}

.job-skills {
    display: flex;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-lg);
    flex-wrap: wrap;
}

.skill-tag {
    background-color: var(--very-light-gray);
    color: var(--medium-gray);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    font-size: var(--text-xs);
    transition: all var(--transition-fast);
}

.job-card:hover .skill-tag {
    background-color: var(--primary-alpha);
    color: var(--primary-color);
}

.job-apply {
    display: inline-block;
    text-decoration: none;
    background-color: var(--primary-color);
    color: var(--white);
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-md);
    font-weight: 500;
    font-size: var(--text-base);
    transition: all var(--transition-fast);
    box-shadow: var(--shadow-sm);
}

.job-apply:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    color: var(--white);
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .careers-content {
        grid-template-columns: 1fr;
    }
    
    .careers-intro {
        order: 2;
    }
    
    .job-listings {
        order: 1;
    }
}

@media (max-width: 768px) {
    .job-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-sm);
    }
    
    .job-info {
        gap: var(--spacing-sm);
    }
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
}

.contact-info {
    background-color: var(--white);
    padding: var(--spacing-2xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
    border: 1px solid rgba(0, 0, 0, 0.05);
    position: relative;
    backdrop-filter: blur(10px);
}

.contact-info:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: var(--shadow-xl);
    border-color: var(--accent-light);
}

.contact-title {
    font-size: var(--text-2xl);
    font-weight: 600;
    color: var(--dark-color);
    margin-bottom: var(--spacing-md);
}

.contact-description {
    font-size: var(--text-base);
    color: var(--medium-gray);
    line-height: 1.6;
    margin-bottom: var(--spacing-xl);
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
}

.contact-icon {
    font-size: var(--text-xl);
    color: var(--primary-color);
    margin-top: 2px;
}

.contact-text {
    font-size: var(--text-base);
    color: var(--medium-gray);
}

.social-links {
    display: flex;
    gap: var(--spacing-sm);
}

.social-link {
    background: var(--primary-gradient);
    color: #ffffff;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-sm);
    border: none;
    position: relative;
}

.social-link:hover {
    background: var(--primary-gradient);
    transform: translateY(-3px) scale(1.05);
    box-shadow: var(--shadow-lg);
}

.social-link span {
    position: relative;
    z-index: 1;
    font-weight: 500;
    transition: all var(--transition-normal);
    font-size: 16px;
}

.social-link:hover span {
    transform: scale(1.1);
}

.contact-form {
    background-color: var(--white);
    padding: var(--spacing-2xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
    border: 1px solid rgba(0, 0, 0, 0.05);
    position: relative;
    backdrop-filter: blur(10px);
}

.contact-form:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: var(--shadow-xl);
    border-color: var(--accent-light);
}

.form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.form-group label {
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--dark-gray);
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid rgba(0, 0, 0, 0.1);
    border-radius: var(--radius-md);
    font-size: var(--text-base);
    font-family: inherit;
    transition: all var(--transition-fast);
    background-color: var(--very-light-gray);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    background-color: var(--white);
    box-shadow: 0 0 0 3px var(--primary-alpha);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

/* 页脚样式 */
.footer {
    background-color: var(--dark-color);
    color: var(--white);
    padding: var(--spacing-3xl) 0 var(--spacing-xl);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-2xl);
}

.footer-logo {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.footer-logo-link {
    text-decoration: none;
    color: var(--white);
    font-size: var(--text-2xl);
    font-weight: 700;
    transition: color var(--transition-fast);
}

.footer-logo-link .logo-image {
    width: 100px;
    height: auto;
}

.footer-logo-link:hover {
    color: var(--primary-color);
}

.footer-description {
    font-size: var(--text-sm);
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.6;
    max-width: 300px;
}

.footer-social {
    display: flex;
    gap: var(--spacing-sm);
}

.social-icon {
    background: var(--primary-gradient);
    color: #ffffff;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    transition: all var(--transition-normal);
    font-size: 16px;
    border: none;
    position: relative;
}

.social-icon:hover {
    background: var(--primary-gradient);
    transform: translateY(-3px) scale(1.05);
    box-shadow: var(--shadow-lg);
}

.social-icon span {
    position: relative;
    z-index: 1;
    font-weight: 500;
    transition: all var(--transition-normal);
}

.social-icon:hover span {
    transform: scale(1.1);
}

.footer-heading {
    font-size: var(--text-base);
    font-weight: 600;
    color: var(--white);
    margin-bottom: var(--spacing-lg);
    position: relative;
    padding-bottom: var(--spacing-sm);
}

.footer-heading::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 2px;
    background-color: var(--primary-color);
}

.footer-nav {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.footer-nav li {
    text-decoration: none;
    color: rgba(255, 255, 255, 0.7);
    font-size: var(--text-sm);
    transition: all var(--transition-fast);
    display: inline-block;
    position: relative;
    padding-left: var(--spacing-sm);
}

.footer-nav li a {
    text-decoration: none;
    color: inherit;
    font-size: inherit;
    transition: all var(--transition-fast);
    display: inline-block;
    position: relative;
    padding-left: 0;
}

.footer-nav li:hover {
    color: var(--primary-color);
    transform: translateX(5px);
}

.footer-nav li::before {
    content: '→';
    position: absolute;
    left: 0;
    opacity: 0;
    transition: opacity var(--transition-fast), transform var(--transition-fast);
    color: var(--primary-color);
    font-size: var(--text-xs);
}

.footer-nav li:hover::before {
    opacity: 1;
    transform: translateX(0);
}

.footer-nav li a:hover {
    color: var(--primary-color);
    transform: none;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--spacing-xl);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-copyright {
    font-size: var(--text-xs);
    color: rgba(255, 255, 255, 0.5);
}

.footer-legal {
    display: flex;
    gap: var(--spacing-md);
}

.footer-legal a {
    text-decoration: none;
    color: rgba(255, 255, 255, 0.5);
    font-size: var(--text-xs);
    transition: color var(--transition-fast);
}

.footer-legal a:hover {
    color: var(--primary-color);
}

.footer-beian {
    display: flex;
    gap: var(--spacing-md);
    align-items: center;
}

.footer-beian a {
    text-decoration: none;
    color: rgba(255, 255, 255, 0.5);
    font-size: var(--text-xs);
    transition: color var(--transition-fast);
}

.footer-beian a:hover {
    color: var(--primary-color);
}

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

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* 响应式设计增强 */
/* 大型桌面设备 */
@media (max-width: 1200px) {
    .container {
        max-width: 95%;
    }
    
    .hero-title {
        font-size: var(--text-4xl);
    }
}

/* 中型桌面设备 */
@media (max-width: 1024px) {
    .hero .container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-content {
        max-width: 100%;
        order: 2;
    }
    
    .hero-image {
        order: 1;
    }
    
    .hero-stats {
        justify-content: center;
    }
    
    .about-content {
        grid-template-columns: 1fr;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr 1fr;
    }
    
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .products-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* 平板设备 */
@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background-color: var(--white);
        flex-direction: column;
        align-items: flex-start;
        padding: var(--spacing-xl);
        box-shadow: var(--shadow-md);
        border-top: 1px solid rgba(0, 0, 0, 0.05);
        gap: var(--spacing-md);
        z-index: 999;
    }
    
    .nav-links.active {
        display: flex;
        animation: slideIn 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }
    
    .mobile-menu {
        display: block;
    }
    
    .hero {
        padding: var(--spacing-3xl) 0 var(--spacing-2xl);
    }
    
    .hero-title {
        font-size: var(--text-4xl);
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .hero-stats {
        flex-direction: column;
        align-items: center;
        gap: var(--spacing-lg);
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: var(--spacing-md);
        text-align: center;
    }
    
    .footer-beian {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .products-grid {
        grid-template-columns: 1fr;
    }
    
    /* 确保移动设备上的触摸目标足够大 */
    button,
    a {
        min-height: 44px;
        min-width: 44px;
    }
}

/* 移动设备 */
@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-md);
    }
    
    .hero-title {
        font-size: var(--text-3xl);
    }
    
    .section-title {
        font-size: var(--text-2xl);
    }
    
    .about-features {
        grid-template-columns: 1fr;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .products-grid {
        grid-template-columns: 1fr;
    }
    
    .product-buttons {
        flex-direction: column;
    }
    
    .contact-info,
    .contact-form {
        padding: var(--spacing-xl);
    }
    
    .footer-content {
        gap: var(--spacing-xl);
    }
    
    /* 移动设备上的字体大小调整 */
    :root {
        --text-base: 15px;
        --text-lg: 17px;
    }
    
    /* 优化移动设备上的触摸体验 */
    .btn-primary,
    .btn-secondary {
        width: 100%;
        justify-content: center;
    }
}

/* 横屏移动设备 */
@media (max-height: 500px) and (orientation: landscape) {
    .hero {
        padding: var(--spacing-2xl) 0;
    }
    
    .hero-title {
        font-size: var(--text-3xl);
    }
    
    .services-grid,
    .products-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* 高分辨率屏幕 */
@media (-webkit-device-pixel-ratio: 2), (resolution: 192dpi) {
    /* 优化高分辨率屏幕上的显示效果 */
    .service-icon,
    .social-link {
        transform: translateZ(0);
        backface-visibility: hidden;
    }
}

/* 滚动条样式 */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--very-light-gray);
}

::-webkit-scrollbar-thumb {
    background: var(--light-gray);
    border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--medium-gray);
}

/* 选择文本样式 */
::selection {
    background-color: var(--primary-alpha);
    color: var(--primary-dark);
}

/* 焦点样式 - 移除导航栏链接的蓝色方框 */
*:focus {
    outline: none;
    outline-offset: 0;
}

/* 为非导航栏元素保留焦点样式，提高可访问性 */
input:focus,
select:focus,
textarea:focus,
button:focus:not(.nav-link):not(.nav-button):not(.menu-toggle) {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* 无障碍样式 */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* 打印样式 */
@media print {
    .navbar,
    .mobile-menu,
    .hero-buttons,
    .footer {
        display: none;
    }
    
    body {
        background-color: var(--white);
        color: var(--dark-color);
    }
}