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

/* 跳过导航链接 - 提高可访问性 */
.skip-link {
    position: absolute;
    top: -40px;
    left: 6px;
    background: var(--primary-color);
    color: white;
    padding: 8px;
    text-decoration: none;
    border-radius: var(--radius-sm);
    z-index: 1001;
    transition: top 0.3s ease;
}

.skip-link:focus {
    top: 6px;
}

:root {
    /* 色彩方案 */
    --primary-color: #2563EB;
    --primary-dark: #1E40AF;
    --accent-color: #F97316;
    --text-primary: #1F2937;
    --text-secondary: #6B7280;
    --text-light: #9CA3AF;
    --bg-white: #FFFFFF;
    --bg-light: #F9FAFB;
    --bg-gray: #F3F4F6;
    --border-color: #E5E7EB;
    
    /* 字体 */
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-size-base: 16px;
    --font-size-sm: 14px;
    --font-size-lg: 18px;
    --font-size-xl: 24px;
    --font-size-2xl: 32px;
    --font-size-3xl: 48px;
    
    /* 间距 */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.4rem;
    --spacing-md: 0.5rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    
    /* 圆角 */
    --radius-sm: 0.25rem;
    --radius-md: 0.5rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    
    /* 阴影 */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-white);
}

/* 全局链接样式 - 去掉下横线 */
a {
    text-decoration: none;
    color: var(--text-light);
}


/* 容器 */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* 导航栏 */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    transition: all 0.3s ease;
}

.navbar {
    padding: var(--spacing-md) 0;
}

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

.navbar-brand .logo img {
    height: 40px;
    width: auto;
}

.navbar-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-xl);
}

/* 语言切换器 */
.language-switcher {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-left: var(--spacing-xl);
}

.lang-btn {
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: var(--font-family);
}

.lang-btn:hover {
    background: var(--bg-light);
    color: var(--text-primary);
    border-color: var(--primary-color);
}

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

.lang-btn span {
    font-weight: 500;
}

.nav-link {
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: width 0.3s ease;
}

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

.navbar-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-sm);
}

.navbar-toggle span {
    display: block;
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    margin: 5px 0;
    transition: 0.3s;
}

/* 英雄区域 */
.hero {
    padding: 120px 0 var(--spacing-3xl);
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
    position: relative;
    overflow: hidden;
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="1"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    opacity: 0.3;
    animation: gridMove 20s linear infinite;
}

/* 流动背景动画 */
@keyframes gridMove {
    0% { transform: translate(0, 0); }
    100% { transform: translate(10px, 10px); }
}

/* 浮动粒子效果 */
.hero::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        radial-gradient(circle at 20% 80%, rgba(255,255,255,0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(255,255,255,0.1) 0%, transparent 50%),
        radial-gradient(circle at 40% 40%, rgba(255,255,255,0.05) 0%, transparent 50%);
    animation: floatParticles 15s ease-in-out infinite;
}

@keyframes floatParticles {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(180deg); }
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-title {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-lg);
}

.hero-subtitle {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-xl);
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 1s ease-out 0.8s forwards;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 1s ease-out 1.1s forwards;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

/* 按钮样式 */
.btn {
    display: inline-block;
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: var(--radius-md);
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    border: 2px solid transparent;
    cursor: pointer;
}

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

.btn-primary:hover {
    background: #EA580C;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background: transparent;
    color: white;
    border-color: white;
}

.btn-secondary:hover {
    background: white;
    color: var(--primary-color);
    transform: translateY(-2px);
}

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

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

/* 区域标题 */
.section-title {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    text-align: center;
    color: var(--text-primary);
}

/* 产品特色 */
.features {
    padding: var(--spacing-3xl) 0;
    background: var(--bg-light);
}

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

.feature-card {
    background: white;
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    text-align: center;
    transition: all 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.feature-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--spacing-lg);
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
}

.feature-card h3 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

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

/* 技术优势 */
.advantages {
    padding: var(--spacing-3xl) 0;
}

.advantage-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-xl);
    text-align: center;
}

.stat-item {
    padding: var(--spacing-xl);
}

.stat-number {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
}

.stat-label {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    font-weight: 500;
}

/* 客户案例 */
.cases {
    padding: var(--spacing-3xl) 0;
    background: var(--bg-light);
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-xl);
}

.case-card {
    background: white;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
}

.case-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.case-image {
    height: 200px;
    overflow: hidden;
}

.case-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

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

.case-content {
    padding: var(--spacing-xl);
}

.case-content h3 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

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

/* 关于我们预览 */
.about-preview {
    padding: var(--spacing-3xl) 0;
    text-align: center;
}

.about-content h2 {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
    color: var(--text-primary);
}

.about-content p {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto var(--spacing-xl);
    line-height: 1.6;
}

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

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer-section h3,
.footer-section h4 {
    margin-bottom: var(--spacing-md);
    font-weight: 600;
}

.footer-section p {
    color: var(--text-light);
    margin-bottom: var(--spacing-sm);
}

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

.footer-section ul li {
    margin-bottom: var(--spacing-sm);
}

.footer-section ul li a {
    color: var(--text-light);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section ul li a:hover {
    color: white;
}

.social-links {
    display: flex;
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.social-links a {
    color: var(--text-light);
    transition: color 0.3s ease;
}

.social-links a:hover {
    color: white;
}

.footer-bottom {
    border-top: 1px solid var(--text-secondary);
    padding-top: var(--spacing-lg);
    text-align: center;
    color: var(--text-light);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .navbar-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: white;
        flex-direction: column;
        padding: var(--spacing-lg);
        box-shadow: var(--shadow-lg);
        border-top: 1px solid var(--border-color);
    }
    
    .navbar-menu.active {
        display: flex;
    }
    
    .navbar-toggle {
        display: block;
    }
    
    /* 在移动端保持语言切换按钮可见 */
    .language-switcher {
        margin-left: auto;
        margin-right: var(--spacing-md);
    }
    
    .hero .container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-title {
        font-size: var(--font-size-2xl);
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .advantage-stats {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .cases-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    .hero {
        padding: 100px 0 var(--spacing-2xl);
    }
    
    .hero-title {
        font-size: var(--font-size-xl);
    }
    
    .hero-subtitle {
        font-size: var(--font-size-base);
    }
    
    .btn {
        padding: var(--spacing-sm) var(--spacing-lg);
        font-size: var(--font-size-sm);
    }
    
    .advantage-stats {
        grid-template-columns: 1fr;
    }
    
    .stat-number {
        font-size: var(--font-size-2xl);
    }
}

/* 动画效果 */
@keyframes fadeInUp {
    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);
    }
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.8);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes slideInFromBottom {
    from {
        opacity: 0;
        transform: translateY(50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.feature-card,
.case-card,
.stat-item {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease-out;
}

.feature-card.animate,
.case-card.animate,
.stat-item.animate {
    opacity: 1;
    transform: translateY(0);
}

/* 滚动动画 */
.scroll-animate {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease-out;
}

.scroll-animate.animate {
    opacity: 1;
    transform: translateY(0);
}

/* 视差滚动效果 */
.parallax-section {
    position: relative;
    overflow: hidden;
}

.parallax-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 120%;
    background-size: cover;
    background-position: center;
    transform: translateY(0);
    transition: transform 0.1s ease-out;
}

/* 流动线条效果 */
.flowing-lines {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    pointer-events: none;
}

.flowing-line {
    position: absolute;
    width: 2px;
    height: 100px;
    background: linear-gradient(to bottom, transparent, rgba(255,255,255,0.3), transparent);
    animation: flowDown 8s linear infinite;
}

.flowing-line:nth-child(1) { left: 10%; animation-delay: 0s; }
.flowing-line:nth-child(2) { left: 30%; animation-delay: 2s; }
.flowing-line:nth-child(3) { left: 50%; animation-delay: 4s; }
.flowing-line:nth-child(4) { left: 70%; animation-delay: 6s; }
.flowing-line:nth-child(5) { left: 90%; animation-delay: 1s; }

@keyframes flowDown {
    0% {
        transform: translateY(-100px);
        opacity: 0;
    }
    10% {
        opacity: 1;
    }
    90% {
        opacity: 1;
    }
    100% {
        transform: translateY(100vh);
        opacity: 0;
    }
}

/* 悬浮卡片效果 */
.floating-card {
    transition: all 0.3s ease;
}

.floating-card:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: 0 20px 40px rgba(0,0,0,0.1);
}

/* 渐变文字效果 */
.gradient-text {
    background: linear-gradient(135deg, #e5e7ec, var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* 脉冲动画 */
.pulse {
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
    100% {
        transform: scale(1);
    }
}

/* 加载动画 */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: white;
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* 无障碍设计 */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* 焦点样式 */
a:focus,
button:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* 页面标题 */
.page-header {
    padding: 80px 0 var(--spacing-xl);
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
    text-align: center;
}

.page-header h1 {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
}

.page-header p {
    font-size: var(--font-size-lg);
    opacity: 0.9;
}

/* 产品页面样式 */
.products {
    padding: var(--spacing-xl) 0;
}

.product-category {
    margin-bottom: var(--spacing-3xl);
}

.product-category h2 {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    margin-bottom: var(--spacing-xl);
    color: var(--text-primary);
    text-align: center;
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
}

.product-card {
    background: white;
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    height: 100%;
}

.product-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.product-icon {
    width: 100px;
    height: 100px;
    margin: 0 auto var(--spacing-xl);
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    box-shadow: 0 8px 25px rgba(37, 99, 235, 0.3);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.product-icon svg {
    width: 48px;
    height: 48px;
    display: block;
    margin: 0 auto;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 2;
}

.product-icon::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, transparent, rgba(255,255,255,0.2), transparent);
    transform: translateX(-100%);
    transition: transform 0.6s ease;
}

.product-card:hover .product-icon::before {
    transform: translateX(100%);
}

.product-card:hover .product-icon {
    transform: scale(1.1);
    box-shadow: 0 12px 35px rgba(37, 99, 235, 0.4);
}

.product-card h3 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
    text-align: center;
}

.product-card p {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: var(--spacing-lg);
    text-align: center;
}

.product-features {
    list-style: none;
    margin-bottom: var(--spacing-lg);
    width: 100%;
    text-align: left;
}

.product-features li {
    padding: var(--spacing-xs) 0;
    color: var(--text-secondary);
    position: relative;
    padding-left: var(--spacing-lg);
    margin-bottom: var(--spacing-xs);
}

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

.product-card .btn {
    width: 100%;
    text-align: center;
    margin-top: auto;
    padding: var(--spacing-md) var(--spacing-xl);
    font-weight: 600;
    border-radius: var(--radius-md);
    transition: all 0.3s ease;
}

/* 技术规格 */
.specifications {
    padding: var(--spacing-3xl) 0;
    background: var(--bg-light);
}

.spec-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
}

.spec-item {
    background: white;
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

.spec-item h3 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.spec-item ul {
    list-style: none;
}

.spec-item ul li {
    padding: var(--spacing-xs) 0;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border-color);
}

.spec-item ul li:last-child {
    border-bottom: none;
}

/* 应用场景 */
.applications {
    padding: var(--spacing-3xl) 0;
}

.app-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
}

.app-card {
    background: white;
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    text-align: center;
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
}

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

.app-card h3 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

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

/* 联系我们CTA */
.contact-cta {
    padding: var(--spacing-3xl) 0;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
    text-align: center;
}

.contact-cta h2 {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
}

.contact-cta p {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-xl);
    opacity: 0.9;
}

/* 联系信息 */
.contact-info {
    padding: var(--spacing-3xl) 0;
    background: var(--bg-light);
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
}

.contact-card {
    background: white;
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    text-align: center;
    transition: all 0.3s ease;
}

.contact-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.contact-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--spacing-lg);
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    box-shadow: 0 8px 25px rgba(37, 99, 235, 0.3);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.contact-icon svg {
    width: 48px;
    height: 48px;
    display: block;
    margin: 0 auto;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 2;
}

.contact-card:hover .contact-icon {
    transform: scale(1.1);
    box-shadow: 0 12px 35px rgba(37, 99, 235, 0.4);
}

.contact-card h3 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.contact-card p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
}

.contact-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

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

/* 联系表单 */
.contact-form-section {
    padding: var(--spacing-3xl) 0;
}

.form-container {
    max-width: 600px;
    margin: 0 auto;
    background: white;
    padding: var(--spacing-2xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

.form-container h2 {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
    text-align: center;
}

.form-container p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
    text-align: center;
}

.contact-form {
    display: grid;
    gap: var(--spacing-lg);
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group label {
    font-weight: 500;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: var(--spacing-md);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: var(--font-size-base);
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

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

/* 在线咨询 */
.online-consultation {
    padding: var(--spacing-3xl) 0;
    background: var(--bg-light);
}

.online-consultation h2 {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    text-align: center;
    margin-bottom: var(--spacing-3xl);
    color: var(--text-primary);
}

.consultation-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
}

.consultation-card {
    background: white;
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    text-align: center;
    transition: all 0.3s ease;
}

.consultation-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.consultation-card h3 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.consultation-card p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
}

.qr-code {
    margin: var(--spacing-lg) 0;
}

.qr-placeholder {
    width: 150px;
    height: 150px;
    margin: 0 auto;
    background: var(--bg-gray);
    border: 2px dashed var(--border-color);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
}

.phone-number {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: var(--spacing-lg);
}

/* 招聘信息 */
.careers {
    padding: var(--spacing-3xl) 0;
}

.careers h2 {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    text-align: center;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.careers > .container > p {
    text-align: center;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-3xl);
}

.careers-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
}

.career-card {
    background: white;
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
}

.career-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.career-card h3 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.career-card p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
}

.career-card ul {
    list-style: none;
    margin-bottom: var(--spacing-lg);
}

.career-card ul li {
    padding: var(--spacing-xs) 0;
    color: var(--text-secondary);
    position: relative;
    padding-left: var(--spacing-lg);
}

.career-card ul li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
}

.career-card .btn {
    width: 100%;
    text-align: center;
}

/* 解决方案页面样式 */
.solutions-overview {
    padding: var(--spacing-3xl) 0;
}

.section-subtitle {
    text-align: center;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-3xl);
    font-size: var(--font-size-lg);
}

.solutions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-xl);
}

.solution-card {
    background: white;
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
}

.solution-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.solution-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--spacing-lg);
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
}

.solution-card h3 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
    text-align: center;
}

.solution-card p {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: var(--spacing-lg);
    text-align: center;
}

.solution-features {
    list-style: none;
    margin-bottom: var(--spacing-lg);
}

.solution-features li {
    padding: var(--spacing-xs) 0;
    color: var(--text-secondary);
    position: relative;
    padding-left: var(--spacing-lg);
}

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

.solution-card .btn {
    width: 100%;
    text-align: center;
}

/* 详细解决方案 */
.detailed-solutions {
    padding: var(--spacing-3xl) 0;
    background: var(--bg-light);
}

.solution-detail {
    margin-bottom: var(--spacing-3xl);
    background: white;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.solution-header {
    padding: var(--spacing-xl);
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
}

.solution-header h2 {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.solution-header p {
    opacity: 0.9;
}

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

.solution-text h3 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.solution-text ul {
    list-style: none;
    margin-bottom: var(--spacing-lg);
}

.solution-text ul li {
    padding: var(--spacing-xs) 0;
    color: var(--text-secondary);
    position: relative;
    padding-left: var(--spacing-lg);
}

.solution-text ul li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
}

.solution-image {
    display: flex;
    align-items: center;
    justify-content: center;
}

.image-placeholder {
    width: 100%;
    height: 200px;
    background: var(--bg-gray);
    border: 2px dashed var(--border-color);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
}

/* 定制化服务 */
.customization {
    padding: var(--spacing-3xl) 0;
}

.customization-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
}

.customization-card {
    background: white;
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    text-align: center;
    transition: all 0.3s ease;
}

.customization-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.customization-card h3 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

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

/* 成功案例 */
.success-cases {
    padding: var(--spacing-3xl) 0;
    background: var(--bg-light);
}

.case-metrics {
    display: flex;
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
    flex-wrap: wrap;
}

.case-metrics span {
    background: var(--primary-color);
    color: white;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-sm);
    font-weight: 500;
}

/* 关于我们页面样式 */
.company-intro {
    padding: var(--spacing-3xl) 0;
}

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

.intro-text h2 {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
    color: var(--text-primary);
}

.intro-text p {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: var(--spacing-lg);
}

.intro-image {
    display: flex;
    align-items: center;
    justify-content: center;
}

.intro-image img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-lg);
    object-fit: cover;
    width: 100%;
    max-height: 400px;
}

/* 企业文化 */
.company-culture {
    padding: var(--spacing-3xl) 0;
    background: var(--bg-light);
}

.culture-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
}

.culture-card {
    background: white;
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    text-align: center;
    transition: all 0.3s ease;
}

.culture-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.culture-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--spacing-lg);
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
}

.culture-card h3 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

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

/* 发展历程 */
.company-history {
    padding: var(--spacing-3xl) 0;
}

.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--primary-color);
    transform: translateX(-50%);
}

.timeline-item {
    position: relative;
    margin-bottom: var(--spacing-2xl);
    display: flex;
    align-items: center;
}

.timeline-item:nth-child(odd) {
    flex-direction: row;
}

.timeline-item:nth-child(even) {
    flex-direction: row-reverse;
}

.timeline-date {
    background: var(--primary-color);
    color: white;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    font-weight: 600;
    min-width: 100px;
    text-align: center;
    z-index: 1;
}

.timeline-content {
    background: white;
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    margin: 0 var(--spacing-lg);
    flex: 1;
}

.timeline-content h3 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

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

/* 团队介绍 */
.team-intro {
    padding: var(--spacing-3xl) 0;
    background: var(--bg-light);
}

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

.team-card {
    background: white;
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    text-align: center;
    transition: all 0.3s ease;
}

.team-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.team-avatar {
    margin-bottom: var(--spacing-lg);
}

.avatar-placeholder {
    width: 100px;
    height: 100px;
    margin: 0 auto;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 600;
    font-size: var(--font-size-lg);
}

.team-card h3 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    color: var(--text-primary);
}

.team-title {
    color: var(--primary-color);
    font-weight: 500;
    margin-bottom: var(--spacing-md);
}

.team-desc {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* 技术优势 */
.tech-advantages {
    padding: var(--spacing-xl) 0;
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
}

.advantage-item {
    background: white;
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
}

.advantage-item:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.advantage-item h3 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

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

/* 荣誉资质 */
.honors {
    padding: var(--spacing-3xl) 0;
    background: var(--bg-light);
}

.honors-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
}

.honor-card {
    background: white;
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    text-align: center;
    transition: all 0.3s ease;
}

.honor-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.honor-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--spacing-lg);
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
}

.honor-card h3 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

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

/* 响应式设计补充 */
@media (max-width: 768px) {
    .solution-content {
        grid-template-columns: 1fr;
    }
    
    .intro-content {
        grid-template-columns: 1fr;
    }
    
    .timeline::before {
        left: 20px;
    }
    
    .timeline-item {
        flex-direction: column !important;
        align-items: flex-start;
        padding-left: 40px;
    }
    
    .timeline-date {
        position: absolute;
        left: 0;
        top: 0;
    }
    
    .timeline-content {
        margin: var(--spacing-lg) 0 0 0;
    }
}

/* 高对比度模式 */
@media (prefers-contrast: high) {
    :root {
        --text-primary: #000000;
        --text-secondary: #333333;
        --border-color: #000000;
    }
} 

/* 统一流动现代化风格 */

/* 流动背景效果 - 适用于所有页面头部 */
.page-header {
    position: relative;
    overflow: hidden;
}

.page-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 80%, rgba(255,255,255,0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(255,255,255,0.1) 0%, transparent 50%),
        radial-gradient(circle at 40% 40%, rgba(255,255,255,0.05) 0%, transparent 50%);
    animation: floatParticles 20s ease-in-out infinite;
}

.page-header::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="1"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    opacity: 0.3;
    animation: gridMove 25s linear infinite;
}

/* 流动线条效果 - 适用于所有页面 */
.flowing-lines-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    pointer-events: none;
    z-index: 1;
}

.flowing-line {
    position: absolute;
    width: 2px;
    height: 100px;
    background: linear-gradient(to bottom, transparent, rgba(255,255,255,0.3), transparent);
    animation: flowDown 12s linear infinite;
}

.flowing-line:nth-child(1) { left: 10%; animation-delay: 0s; }
.flowing-line:nth-child(2) { left: 30%; animation-delay: 3s; }
.flowing-line:nth-child(3) { left: 50%; animation-delay: 6s; }
.flowing-line:nth-child(4) { left: 70%; animation-delay: 9s; }
.flowing-line:nth-child(5) { left: 90%; animation-delay: 1.5s; }
.flowing-line:nth-child(6) { left: 20%; animation-delay: 4.5s; }
.flowing-line:nth-child(7) { left: 40%; animation-delay: 7.5s; }
.flowing-line:nth-child(8) { left: 60%; animation-delay: 10.5s; }
.flowing-line:nth-child(9) { left: 80%; animation-delay: 13.5s; }

@keyframes flowDown {
    0% {
        transform: translateY(-100px);
        opacity: 0;
    }
    10% {
        opacity: 1;
    }
    90% {
        opacity: 1;
    }
    100% {
        transform: translateY(100vh);
        opacity: 0;
    }
}

/* 悬浮粒子效果 */
.floating-particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1;
}

.particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: rgba(255, 255, 255, 0.6);
    border-radius: 50%;
    animation: float 15s infinite linear;
}

.particle:nth-child(1) { left: 10%; animation-delay: 0s; }
.particle:nth-child(2) { left: 20%; animation-delay: 2s; }
.particle:nth-child(3) { left: 30%; animation-delay: 4s; }
.particle:nth-child(4) { left: 40%; animation-delay: 6s; }
.particle:nth-child(5) { left: 50%; animation-delay: 8s; }
.particle:nth-child(6) { left: 60%; animation-delay: 10s; }
.particle:nth-child(7) { left: 70%; animation-delay: 12s; }
.particle:nth-child(8) { left: 80%; animation-delay: 14s; }
.particle:nth-child(9) { left: 90%; animation-delay: 1s; }
.particle:nth-child(10) { left: 15%; animation-delay: 3s; }
.particle:nth-child(11) { left: 25%; animation-delay: 5s; }
.particle:nth-child(12) { left: 35%; animation-delay: 7s; }
.particle:nth-child(13) { left: 45%; animation-delay: 9s; }
.particle:nth-child(14) { left: 55%; animation-delay: 11s; }
.particle:nth-child(15) { left: 65%; animation-delay: 13s; }

@keyframes float {
    0% {
        transform: translateY(100vh) rotate(0deg);
        opacity: 0;
    }
    10% {
        opacity: 1;
    }
    90% {
        opacity: 1;
    }
    100% {
        transform: translateY(-100px) rotate(360deg);
        opacity: 0;
    }
}

/* 渐变边框效果 */
.gradient-border {
    position: relative;
    background: white;
    border-radius: var(--radius-lg);
    padding: 2px;
}

.gradient-border::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, var(--primary-color), var(--accent-color), var(--primary-dark), var(--accent-color));
    border-radius: var(--radius-lg);
    z-index: -1;
    animation: gradientRotate 3s ease infinite;
}

@keyframes gradientRotate {
    0%, 100% {
        background: linear-gradient(45deg, var(--primary-color), var(--accent-color), var(--primary-dark), var(--accent-color));
    }
    25% {
        background: linear-gradient(135deg, var(--primary-color), var(--accent-color), var(--primary-dark), var(--accent-color));
    }
    50% {
        background: linear-gradient(225deg, var(--primary-color), var(--accent-color), var(--primary-dark), var(--accent-color));
    }
    75% {
        background: linear-gradient(315deg, var(--primary-color), var(--accent-color), var(--primary-dark), var(--accent-color));
    }
}

/* 流动卡片效果 */
.flowing-card {
    position: relative;
    overflow: visible;
    transition: all 0.3s ease;
}

.flowing-card::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, transparent, rgba(255,255,255,0.1), transparent);
    transform: rotate(45deg);
    transition: all 0.6s ease;
    opacity: 0;
}

.flowing-card:hover::before {
    opacity: 1;
    transform: rotate(45deg) translate(50%, 50%);
}

.flowing-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0,0,0,0.1);
}

/* 脉冲光环效果 */
.pulse-ring {
    position: relative;
}

.pulse-ring::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 100%;
    height: 100%;
    border: 2px solid var(--primary-color);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    animation: pulseRing 2s infinite;
}

@keyframes pulseRing {
    0% {
        transform: translate(-50%, -50%) scale(0.8);
        opacity: 1;
    }
    100% {
        transform: translate(-50%, -50%) scale(1.5);
        opacity: 0;
    }
}

/* 流动文字效果 */
.flowing-text {
    background: linear-gradient(45deg, var(--primary-color), var(--accent-color), var(--primary-dark));
    background-size: 200% 200%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: gradientFlow 3s ease infinite;
}

@keyframes gradientFlow {
    0%, 100% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
}

/* 流动图标效果 */
.flowing-icon {
    position: relative;
    transition: all 0.3s ease;
}

.flowing-icon::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, rgba(37, 99, 235, 0.2) 0%, transparent 70%);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    animation: iconPulse 2s infinite;
}

@keyframes iconPulse {
    0%, 100% {
        transform: translate(-50%, -50%) scale(1);
        opacity: 0.5;
    }
    50% {
        transform: translate(-50%, -50%) scale(1.2);
        opacity: 0.8;
    }
}

/* 流动网格背景 */
.flowing-grid {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(rgba(255,255,255,0.1) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.1) 1px, transparent 1px);
    background-size: 20px 20px;
    animation: gridFlow 20s linear infinite;
}

@keyframes gridFlow {
    0% {
        transform: translate(0, 0);
    }
    100% {
        transform: translate(20px, 20px);
    }
}

/* 流动波浪效果 */
.flowing-wave {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 100px;
    background: linear-gradient(45deg, transparent 30%, rgba(255,255,255,0.1) 50%, transparent 70%);
    animation: waveFlow 4s ease-in-out infinite;
}

@keyframes waveFlow {
    0%, 100% {
        transform: translateX(-100%);
    }
    50% {
        transform: translateX(100%);
    }
}

/* 流动光效 */
.flowing-light {
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    animation: lightFlow 3s ease-in-out infinite;
}

@keyframes lightFlow {
    0% {
        left: -100%;
    }
    100% {
        left: 100%;
    }
}

/* 统一应用到所有模块的流动效果 */
.products,
.solutions-overview,
.company-intro,
.contact-info {
    position: relative;
    overflow: hidden;
    padding: var(--spacing-xl) 0;
}

.products::before,
.solutions-overview::before,
.company-intro::before,
.contact-info::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 80%, rgba(37, 99, 235, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(249, 115, 22, 0.05) 0%, transparent 50%);
    pointer-events: none;
}

/* 流动卡片增强效果 */
.product-card,
.solution-card,
.culture-card,
.contact-card {
    position: relative;
    overflow: hidden;
}

.product-card::before,
.solution-card::before,
.culture-card::before,
.contact-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
    transition: left 0.6s ease;
}

.product-card:hover::before,
.solution-card:hover::before,
.culture-card:hover::before,
.contact-card:hover::before {
    left: 100%;
}

/* 流动按钮效果 */
.btn-flowing {
    position: relative;
    overflow: hidden;
}

.btn-flowing::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255,255,255,0.3);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.6s ease, height 0.6s ease;
}

.btn-flowing:hover::before {
    width: 300px;
    height: 300px;
}

/* 流动标题效果 */
.section-title.flowing {
    position: relative;
    display: inline-block;
}

.section-title.flowing::after {
    content: '';
    position: absolute;
    left: 0;
    width: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
}

@keyframes titleFlow {
    0%, 100% {
        width: 0;
    }
    50% {
        width: 100%;
    }
}

/* 流动图标容器 */
.icon-container {
    position: relative;
    display: inline-block;
}

.icon-container::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 120%;
    height: 120%;
    background: radial-gradient(circle, rgba(37, 99, 235, 0.15) 0%, transparent 70%);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    animation: containerPulse 3s infinite;
}

.icon-container::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 140%;
    height: 140%;
    background: radial-gradient(circle, rgba(249, 115, 22, 0.1) 0%, transparent 70%);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    animation: containerPulse 3s infinite 1.5s;
}

@keyframes containerPulse {
    0%, 100% {
        transform: translate(-50%, -50%) scale(1);
        opacity: 0.3;
    }
    50% {
        transform: translate(-50%, -50%) scale(1.2);
        opacity: 0.6;
    }
}

/* 流动分隔线 */
.flowing-divider {
    position: relative;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--primary-color), var(--accent-color), transparent);
    margin: var(--spacing-xl) 0;
    overflow: hidden;
}

.flowing-divider::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.8), transparent);
    animation: dividerFlow 2s ease-in-out infinite;
}

@keyframes dividerFlow {
    0% {
        left: -100%;
    }
    100% {
        left: 100%;
    }
}

/* 流动进度条 */
.flowing-progress {
    position: relative;
    height: 4px;
    background: var(--bg-gray);
    border-radius: 2px;
    overflow: hidden;
}

.flowing-progress::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    border-radius: 2px;
    animation: progressFlow 2s ease-in-out infinite;
}

@keyframes progressFlow {
    0% {
        width: 0;
    }
    50% {
        width: 100%;
    }
    100% {
        width: 0;
    }
}

/* 流动背景渐变 */
.flowing-bg {
    position: relative;
    background: linear-gradient(135deg, var(--bg-light) 0%, white 50%, var(--bg-light) 100%);
    background-size: 200% 200%;
    animation: bgFlow 10s ease-in-out infinite;
}

@keyframes bgFlow {
    0%, 100% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
}

/* 流动阴影效果 */
.flowing-shadow {
    box-shadow: 0 4px 20px rgba(37, 99, 235, 0.1);
    transition: all 0.3s ease;
}

.flowing-shadow:hover {
    box-shadow: 0 8px 30px rgba(37, 99, 235, 0.2);
    transform: translateY(-2px);
}

/* 流动边框动画 */
.flowing-border {
    position: relative;
    border: 2px solid transparent;
    background: linear-gradient(white, white) padding-box,
                linear-gradient(45deg, var(--primary-color), var(--accent-color)) border-box;
    border-radius: var(--radius-lg);
}

.flowing-border::before {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: linear-gradient(45deg, var(--primary-color), var(--accent-color), var(--primary-dark), var(--accent-color));
    border-radius: var(--radius-lg);
    z-index: -1;
    animation: borderRotate 3s linear infinite;
}

@keyframes borderRotate {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
}

/* 流动文字渐变 */
.flowing-text-gradient {
    margin-top: 10px;
    background: linear-gradient(45deg, #e5e7ec, var(--accent-color), var(--primary-dark));
    background-size: 200% 200%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: textGradientFlow 4s ease infinite;
}

@keyframes textGradientFlow {
    0%, 100% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
}

/* 流动加载动画 */
.flowing-loader {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid rgba(37, 99, 235, 0.3);
    border-radius: 50%;
    border-top-color: var(--primary-color);
    animation: flowingSpin 1s ease-in-out infinite;
}

@keyframes flowingSpin {
    to {
        transform: rotate(360deg);
    }
}

/* 流动响应式增强 */
@media (max-width: 768px) {
    .flowing-lines-container {
        display: none;
    }
    
    .floating-particles {
        display: none;
    }
    
    .flowing-card:hover {
        transform: translateY(-5px) scale(1.01);
    }
}

/* 流动无障碍优化 */
@media (prefers-reduced-motion: reduce) {
    .flowing-lines-container,
    .floating-particles,
    .flowing-card::before,
    .flowing-light,
    .flowing-wave {
        animation: none;
    }
    
    .flowing-card:hover {
        transform: none;
    }
}