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

:root {
    --primary-color: #2563eb;
    --secondary-color: #1e40af;
    --accent-color: #3b82f6;
    --text-primary: #1f2937;
    --text-secondary: #6b7280;
    --text-light: #9ca3af;
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-dark: #1f2937;
    --border-color: #e5e7eb;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-secondary: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-primary);
}

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

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    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;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.nav-logo h2 {
    color: var(--primary-color);
    font-weight: 700;
    font-size: 1.5rem;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

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

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: width 0.3s ease;
}

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

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.bar {
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    margin: 3px 0;
    transition: 0.3s;
}

/* 首页横幅 */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    position: relative;
    overflow: hidden;
}

/* 科技感背景层 */
.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        /* 渐变光晕 */
        radial-gradient(circle at 20% 80%, rgba(120, 119, 198, 0.3) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(255, 119, 198, 0.3) 0%, transparent 50%),
        radial-gradient(circle at 40% 40%, rgba(120, 219, 255, 0.2) 0%, transparent 50%),
        /* 大圆环 */
        radial-gradient(circle at 10% 20%, transparent 0%, transparent 40%, rgba(255, 255, 255, 0.1) 41%, rgba(255, 255, 255, 0.1) 42%, transparent 43%),
        radial-gradient(circle at 90% 80%, transparent 0%, transparent 40%, rgba(255, 255, 255, 0.1) 41%, rgba(255, 255, 255, 0.1) 42%, transparent 43%),
        /* 小圆环 */
        radial-gradient(circle at 80% 30%, transparent 0%, transparent 60%, rgba(255, 255, 255, 0.05) 61%, rgba(255, 255, 255, 0.05) 62%, transparent 63%),
        radial-gradient(circle at 20% 70%, transparent 0%, transparent 60%, rgba(255, 255, 255, 0.05) 61%, rgba(255, 255, 255, 0.05) 62%, transparent 63%),
        /* 线条装饰 */
        linear-gradient(90deg, transparent 0%, transparent 15%, rgba(255, 255, 255, 0.1) 16%, rgba(255, 255, 255, 0.1) 17%, transparent 18%),
        linear-gradient(90deg, transparent 0%, transparent 85%, rgba(255, 255, 255, 0.1) 86%, rgba(255, 255, 255, 0.1) 87%, transparent 88%),
        linear-gradient(0deg, transparent 0%, transparent 15%, rgba(255, 255, 255, 0.1) 16%, rgba(255, 255, 255, 0.1) 17%, transparent 18%),
        linear-gradient(0deg, transparent 0%, transparent 85%, rgba(255, 255, 255, 0.1) 86%, rgba(255, 255, 255, 0.1) 87%, transparent 88%);
    z-index: 1;
}

/* 动态网格和粒子效果 */
.hero::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        /* 网格效果 */
        linear-gradient(45deg, transparent 48%, rgba(255, 255, 255, 0.1) 50%, transparent 52%),
        linear-gradient(-45deg, transparent 48%, rgba(255, 255, 255, 0.1) 50%, transparent 52%),
        /* 粒子效果 */
        radial-gradient(2px 2px at 20px 30px, rgba(255, 255, 255, 0.8), transparent),
        radial-gradient(2px 2px at 40px 70px, rgba(255, 255, 255, 0.6), transparent),
        radial-gradient(1px 1px at 90px 40px, rgba(255, 255, 255, 0.8), transparent),
        radial-gradient(1px 1px at 130px 80px, rgba(255, 255, 255, 0.6), transparent),
        radial-gradient(2px 2px at 160px 30px, rgba(255, 255, 255, 0.8), transparent);
    background-size: 60px 60px, 60px 60px, 200px 100px, 200px 100px, 200px 100px, 200px 100px, 200px 100px;
    background-repeat: repeat, repeat, repeat, repeat, repeat, repeat, repeat;
    animation: gridMove 20s linear infinite, particleFloat 15s linear infinite;
    z-index: 1;
}

@keyframes gridMove {
    0% { transform: translate(0, 0); }
    100% { transform: translate(60px, 60px); }
}

@keyframes particleFloat {
    0% { transform: translateY(0px); }
    100% { transform: translateY(-100px); }
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    position: relative;
    z-index: 2;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    opacity: 0.9;
    line-height: 1.6;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

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

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

.btn-secondary {
    background: transparent;
    color: white;
    border: 2px solid white;
}

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

.hero-graphic {
    position: relative;
    height: 400px;
}

.floating-card {
    position: absolute;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 16px;
    padding: 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    animation: float 6s ease-in-out infinite;
}

.floating-card i {
    font-size: 2rem;
    color: white;
}

.floating-card span {
    color: white;
    font-weight: 600;
}

.card-1 {
    top: 20%;
    left: 10%;
    animation-delay: 0s;
}

.card-2 {
    top: 50%;
    right: 20%;
    animation-delay: 2s;
}

.card-3 {
    bottom: 20%;
    left: 30%;
    animation-delay: 4s;
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
}

/* 通用区块样式 */
.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.section-header p {
    font-size: 1.125rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* 关于我们 */
.about {
    padding: 100px 0;
    background: var(--bg-secondary);
    position: relative;
    overflow: hidden;
}

/* 关于我们背景装饰 */
.about::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        /* 几何装饰 */
        radial-gradient(circle at 10% 10%, rgba(37, 99, 235, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 90% 90%, rgba(30, 64, 175, 0.05) 0%, transparent 50%),
        /* 网格线条 */
        linear-gradient(90deg, transparent 0%, transparent 49%, rgba(37, 99, 235, 0.03) 50%, transparent 51%),
        linear-gradient(0deg, transparent 0%, transparent 49%, rgba(37, 99, 235, 0.03) 50%, transparent 51%);
    background-size: 200px 200px, 200px 200px, 100px 100px, 100px 100px;
    z-index: 1;
}

.about::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(37, 99, 235, 0.02) 0%, transparent 70%);
    transform: translate(-50%, -50%);
    z-index: 1;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    position: relative;
    z-index: 2;
}

.about-text h3 {
    font-size: 1.75rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

.about-text p {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    line-height: 1.7;
}

.company-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

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

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

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

.about-image {
    display: flex;
    justify-content: center;
}

.image-placeholder {
    width: 300px;
    height: 300px;
    background: var(--gradient-primary);
    border-radius: 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: white;
    box-shadow: var(--shadow-lg);
}

.image-placeholder i {
    font-size: 4rem;
    margin-bottom: 1rem;
}

.image-placeholder p {
    font-size: 1.125rem;
    font-weight: 600;
}

/* 服务方案 */
.services {
    padding: 100px 0;
    position: relative;
    overflow: hidden;
}

/* 服务方案背景装饰 */
.services::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        /* 渐变背景 */
        linear-gradient(135deg, rgba(37, 99, 235, 0.02) 0%, rgba(30, 64, 175, 0.02) 100%),
        /* 装饰性圆点 */
        radial-gradient(3px 3px at 50px 100px, rgba(37, 99, 235, 0.1), transparent),
        radial-gradient(2px 2px at 150px 200px, rgba(59, 130, 246, 0.08), transparent),
        radial-gradient(4px 4px at 300px 150px, rgba(37, 99, 235, 0.06), transparent),
        radial-gradient(2px 2px at 400px 300px, rgba(59, 130, 246, 0.08), transparent),
        radial-gradient(3px 3px at 500px 100px, rgba(37, 99, 235, 0.1), transparent);
    z-index: 1;
}

.services::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        /* 连接线 */
        linear-gradient(45deg, transparent 0%, transparent 48%, rgba(37, 99, 235, 0.03) 49%, rgba(37, 99, 235, 0.03) 51%, transparent 52%);
    background-size: 80px 80px;
    animation: serviceGrid 25s linear infinite;
    z-index: 1;
}

@keyframes serviceGrid {
    0% { transform: translate(0, 0); }
    100% { transform: translate(80px, 80px); }
}

.services .container {
    position: relative;
    z-index: 2;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.service-card {
    background: white;
    padding: 2.5rem;
    border-radius: 16px;
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
}

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

.service-icon {
    width: 80px;
    height: 80px;
    background: var(--gradient-primary);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

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

.service-card h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

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

/* 解决方案 */
.solutions {
    padding: 100px 0;
    background: var(--bg-secondary);
    position: relative;
    overflow: hidden;
}

/* 解决方案背景装饰 */
.solutions::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        /* 波浪效果 */
        radial-gradient(ellipse 800px 200px at 50% 20%, rgba(37, 99, 235, 0.03) 0%, transparent 50%),
        radial-gradient(ellipse 600px 150px at 50% 80%, rgba(59, 130, 246, 0.03) 0%, transparent 50%),
        /* 几何装饰 */
        radial-gradient(circle at 20% 30%, rgba(37, 99, 235, 0.04) 0%, transparent 40%),
        radial-gradient(circle at 80% 70%, rgba(59, 130, 246, 0.04) 0%, transparent 40%);
    z-index: 1;
}

.solutions::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        /* 六边形网格 */
        linear-gradient(60deg, transparent 0%, transparent 48%, rgba(37, 99, 235, 0.02) 49%, rgba(37, 99, 235, 0.02) 51%, transparent 52%),
        linear-gradient(-60deg, transparent 0%, transparent 48%, rgba(37, 99, 235, 0.02) 49%, rgba(37, 99, 235, 0.02) 51%, transparent 52%);
    background-size: 60px 60px;
    animation: solutionHex 30s linear infinite;
    z-index: 1;
}

@keyframes solutionHex {
    0% { transform: translate(0, 0) rotate(0deg); }
    100% { transform: translate(60px, 60px) rotate(360deg); }
}

.solutions .container {
    position: relative;
    z-index: 2;
}

.solutions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 3rem;
}

.solution-card {
    background: white;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
}

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

.solution-image {
    height: 200px;
    background: var(--gradient-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
}

.solution-image .image-placeholder {
    width: 100%;
    height: 100%;
    border-radius: 0;
    background: var(--gradient-secondary);
}

.solution-content {
    padding: 2rem;
}

.solution-content h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.solution-content p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.solution-features {
    list-style: none;
}

.solution-features li {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
}

.solution-features i {
    color: var(--primary-color);
    font-size: 0.875rem;
}

/* 技术优势 */
.advantages {
    padding: 100px 0;
    position: relative;
    overflow: hidden;
}

/* 技术优势背景装饰 */
.advantages::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        /* 渐变背景 */
        linear-gradient(45deg, rgba(37, 99, 235, 0.01) 0%, rgba(59, 130, 246, 0.01) 50%, rgba(37, 99, 235, 0.01) 100%),
        /* 圆形装饰 */
        radial-gradient(circle at 15% 15%, rgba(37, 99, 235, 0.06) 0%, transparent 50%),
        radial-gradient(circle at 85% 85%, rgba(59, 130, 246, 0.06) 0%, transparent 50%),
        radial-gradient(circle at 50% 50%, rgba(37, 99, 235, 0.03) 0%, transparent 70%);
    z-index: 1;
}

.advantages::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        /* 点阵效果 */
        radial-gradient(1px 1px at 25px 25px, rgba(37, 99, 235, 0.1), transparent),
        radial-gradient(1px 1px at 75px 75px, rgba(59, 130, 246, 0.1), transparent),
        radial-gradient(1px 1px at 125px 125px, rgba(37, 99, 235, 0.1), transparent),
        radial-gradient(1px 1px at 175px 175px, rgba(59, 130, 246, 0.1), transparent);
    background-size: 100px 100px;
    animation: advantageDots 20s linear infinite;
    z-index: 1;
}

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

.advantages .container {
    position: relative;
    z-index: 2;
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.advantage-item {
    text-align: center;
    padding: 2rem;
}

.advantage-icon {
    width: 80px;
    height: 80px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
}

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

.advantage-item h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

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

/* 联系我们 */
.contact {
    padding: 100px 0;
    background: var(--bg-secondary);
    position: relative;
    overflow: hidden;
}

/* 联系我们背景装饰 */
.contact::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        /* 波浪背景 */
        radial-gradient(ellipse 1000px 300px at 50% 0%, rgba(37, 99, 235, 0.04) 0%, transparent 50%),
        radial-gradient(ellipse 800px 200px at 50% 100%, rgba(59, 130, 246, 0.04) 0%, transparent 50%),
        /* 装饰性元素 */
        radial-gradient(circle at 25% 25%, rgba(37, 99, 235, 0.05) 0%, transparent 40%),
        radial-gradient(circle at 75% 75%, rgba(59, 130, 246, 0.05) 0%, transparent 40%);
    z-index: 1;
}

.contact::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        /* 连接线网络 */
        linear-gradient(90deg, transparent 0%, transparent 49%, rgba(37, 99, 235, 0.02) 50%, transparent 51%),
        linear-gradient(0deg, transparent 0%, transparent 49%, rgba(37, 99, 235, 0.02) 50%, transparent 51%);
    background-size: 120px 120px;
    animation: contactNetwork 35s linear infinite;
    z-index: 1;
}

@keyframes contactNetwork {
    0% { transform: translate(0, 0); }
    100% { transform: translate(120px, 120px); }
}

.contact .container {
    position: relative;
    z-index: 2;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.contact-icon {
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.contact-icon i {
    font-size: 1.5rem;
    color: white;
}

.contact-details h4 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.contact-details p {
    color: var(--text-secondary);
}

.contact-form {
    background: white;
    padding: 2.5rem;
    border-radius: 16px;
    box-shadow: var(--shadow-md);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
    font-family: inherit;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

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

/* 页脚 */
.footer {
    background: var(--bg-dark);
    color: white;
    padding: 60px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h3,
.footer-section h4 {
    margin-bottom: 1rem;
    color: white;
}

.footer-section p {
    color: #9ca3af;
    line-height: 1.6;
    margin-bottom: 1rem;
}

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

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section ul li a {
    color: #9ca3af;
    text-decoration: none;
    transition: color 0.3s ease;
}

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

.social-links {
    display: flex;
    gap: 1rem;
}

.social-links a {
    width: 40px;
    height: 40px;
    background: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    text-decoration: none;
    transition: all 0.3s ease;
}

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

.footer-bottom {
    border-top: 1px solid #374151;
    padding-top: 2rem;
    text-align: center;
    color: #9ca3af;
}

.footer-bottom p {
    margin-bottom: 0.5rem;
}

.footer-bottom a {
    color: #9ca3af;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-bottom a:hover {
    color: white;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: white;
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: var(--shadow-md);
        padding: 2rem 0;
    }

    .nav-menu.active {
        left: 0;
    }

    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2rem;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-buttons {
        justify-content: center;
    }

    /* 移动端科技背景优化 */
    .hero::before {
        background: 
            /* 简化渐变光晕 */
            radial-gradient(circle at 30% 70%, rgba(120, 119, 198, 0.4) 0%, transparent 60%),
            radial-gradient(circle at 70% 30%, rgba(255, 119, 198, 0.4) 0%, transparent 60%),
            /* 简化圆环 */
            radial-gradient(circle at 20% 30%, transparent 0%, transparent 50%, rgba(255, 255, 255, 0.15) 51%, rgba(255, 255, 255, 0.15) 52%, transparent 53%),
            radial-gradient(circle at 80% 70%, transparent 0%, transparent 50%, rgba(255, 255, 255, 0.15) 51%, rgba(255, 255, 255, 0.15) 52%, transparent 53%);
    }

    .hero::after {
        background-image: 
            /* 简化网格效果 */
            linear-gradient(45deg, transparent 48%, rgba(255, 255, 255, 0.08) 50%, transparent 52%),
            /* 简化粒子效果 */
            radial-gradient(1.5px 1.5px at 30px 50px, rgba(255, 255, 255, 0.7), transparent),
            radial-gradient(1px 1px at 80px 30px, rgba(255, 255, 255, 0.6), transparent),
            radial-gradient(1.5px 1.5px at 120px 70px, rgba(255, 255, 255, 0.7), transparent);
        background-size: 40px 40px, 150px 80px, 150px 80px, 150px 80px;
        animation: gridMoveMobile 15s linear infinite, particleFloatMobile 12s linear infinite;
    }

    @keyframes gridMoveMobile {
        0% { transform: translate(0, 0); }
        100% { transform: translate(40px, 40px); }
    }

    @keyframes particleFloatMobile {
        0% { transform: translateY(0px); }
        100% { transform: translateY(-80px); }
    }

    .about-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .company-stats {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .contact-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .services-grid,
    .solutions-grid,
    .advantages-grid {
        grid-template-columns: 1fr;
    }

    .section-header h2 {
        font-size: 2rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }

    .hero-title {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    /* 小屏幕进一步简化背景 */
    .hero::before {
        background: 
            radial-gradient(circle at 50% 50%, rgba(120, 119, 198, 0.3) 0%, transparent 70%),
            radial-gradient(circle at 25% 75%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
            radial-gradient(circle at 75% 25%, rgba(255, 255, 255, 0.1) 0%, transparent 50%);
    }

    .hero::after {
        background-image: 
            linear-gradient(45deg, transparent 48%, rgba(255, 255, 255, 0.05) 50%, transparent 52%),
            radial-gradient(1px 1px at 50px 40px, rgba(255, 255, 255, 0.6), transparent),
            radial-gradient(1px 1px at 100px 60px, rgba(255, 255, 255, 0.6), transparent);
        background-size: 30px 30px, 100px 60px, 100px 60px;
        animation: gridMoveSmall 12s linear infinite, particleFloatSmall 10s linear infinite;
    }

    @keyframes gridMoveSmall {
        0% { transform: translate(0, 0); }
        100% { transform: translate(30px, 30px); }
    }

    @keyframes particleFloatSmall {
        0% { transform: translateY(0px); }
        100% { transform: translateY(-60px); }
    }

    .btn {
        padding: 10px 20px;
        font-size: 0.875rem;
    }

    .service-card,
    .contact-form {
        padding: 1.5rem;
    }
}

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

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

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

.animate-on-scroll {
    animation: fadeInUp 0.6s ease forwards;
}

/* 移动端其他部分背景优化 */
.about::before {
    background: 
        radial-gradient(circle at 20% 20%, rgba(37, 99, 235, 0.03) 0%, transparent 60%),
        radial-gradient(circle at 80% 80%, rgba(30, 64, 175, 0.03) 0%, transparent 60%);
    background-size: 150px 150px, 150px 150px;
}

.services::before {
    background: 
        linear-gradient(135deg, rgba(37, 99, 235, 0.01) 0%, rgba(30, 64, 175, 0.01) 100%),
        radial-gradient(2px 2px at 50px 100px, rgba(37, 99, 235, 0.08), transparent),
        radial-gradient(2px 2px at 150px 200px, rgba(59, 130, 246, 0.06), transparent);
}

.solutions::before {
    background: 
        radial-gradient(ellipse 600px 150px at 50% 20%, rgba(37, 99, 235, 0.02) 0%, transparent 50%),
        radial-gradient(ellipse 400px 100px at 50% 80%, rgba(59, 130, 246, 0.02) 0%, transparent 50%);
}

.advantages::before {
    background: 
        linear-gradient(45deg, rgba(37, 99, 235, 0.005) 0%, rgba(59, 130, 246, 0.005) 50%, rgba(37, 99, 235, 0.005) 100%),
        radial-gradient(circle at 25% 25%, rgba(37, 99, 235, 0.04) 0%, transparent 60%);
}

.contact::before {
    background: 
        radial-gradient(ellipse 700px 200px at 50% 0%, rgba(37, 99, 235, 0.03) 0%, transparent 50%),
        radial-gradient(ellipse 500px 150px at 50% 100%, rgba(59, 130, 246, 0.03) 0%, transparent 50%);
}