/* 全局样式重置和基础设置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* 新颜色方案 - 6-3-1占比 */
    --primary-color: #f8f9fa;
    --primary-dark: #e9ecef;
    --secondary-color: #343a40;
    --secondary-light: #495057;
    --accent-color: #007bff;
    --accent-light: #1e88e5;
    --accent-dark: #0056b3;
    
    /* 功能变量 */
    --bg-color: var(--primary-color);
    --text-primary: var(--secondary-color);
    --text-secondary: var(--secondary-light);
    --nav-bg: var(--secondary-color);
    --footer-bg: var(--secondary-color);
    --card-bg: rgba(255, 255, 255, 0.95);
    --border-color: rgba(52, 58, 64, 0.2);
    --shadow-color: rgba(52, 58, 64, 0.1);
    
    /* 状态颜色 */
    --success-color: #28a745;
    --error-color: #dc3545;
    --warning-color: #ffc107;
    --info-color: #17a2b8;
}

body {
    font-family: 'Roboto', sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-color);
    background-image: none;
    overflow-x: hidden;
}

/* 容器设置 */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 高亮文本 */
.highlight {
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: 0 0 10px rgba(0, 212, 255, 0.3);
}

/* 按钮样式 */
.btn {
    display: inline-block;
    padding: 14px 35px;
    margin: 10px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    font-size: 16px;
    position: relative;
    overflow: hidden;
}

.btn::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 0.5s ease;
}

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

.btn-primary {
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
    color: white;
    box-shadow: var(--glow-effect);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0, 212, 255, 0.6);
}

.btn-secondary {
    background: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
    box-shadow: 0 4px 15px rgba(0, 212, 255, 0.2);
}

.btn-secondary:hover {
    background: var(--primary-color);
    color: var(--dark-bg);
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0, 212, 255, 0.4);
}

.btn-outline {
    background: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
    padding: 10px 25px;
    font-size: 14px;
}

.btn-outline:hover {
    background: var(--primary-color);
    color: var(--dark-bg);
    transform: scale(1.05);
    box-shadow: 0 5px 15px rgba(0, 212, 255, 0.3);
}

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(52, 58, 64, 0.95); /* 导航栏背景 */
    backdrop-filter: blur(20px);
    z-index: 1000;
    transition: all 0.3s ease;
    border-bottom: 1px solid rgba(248, 249, 250, 0.2); /* 主色边框 */
    box-shadow: 0 2px 20px rgba(52, 58, 64, 0.1); /* 辅助色阴影 */
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
}

.logo .logo-container {
    display: flex;
    align-items: center;
    gap: 15px;
}

.logo .logo-img {
    width: 60px;
    height: 60px;
    object-fit: contain;
    transition: transform 0.3s ease;
}

.logo:hover .logo-img {
    transform: scale(1.1);
}

.logo h1 {
    font-family: 'Orbitron', sans-serif;
    font-size: 28px;
    font-weight: 900;
    color: var(--primary-color); /* 主色文本 */
    background: none;
    -webkit-background-clip: text;
    -webkit-text-fill-color: var(--primary-color);
    margin: 0;
}

.logo .tech {
    color: var(--primary-color); /* 主色文本 */
    text-shadow: 0 0 10px rgba(248, 249, 250, 0.3);
}

.logo .nova {
    color: var(--primary-color); /* 主色文本 */
    text-shadow: 0 0 10px rgba(248, 249, 250, 0.3);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 30px;
}

.nav-links a {
    color: var(--primary-color); /* 主色文本 */
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
    padding: 8px 0;
}

.nav-links a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: 0;
    left: 0;
    background: linear-gradient(90deg, var(--accent-color), var(--accent-light)); /* 强调色渐变 */
    transition: width 0.3s ease;
}

.nav-links a:hover {
    color: var(--accent-color); /* 强调色文本 */
    text-shadow: 0 0 10px rgba(0, 123, 255, 0.3);
}

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

.nav-links a.active {
    color: var(--accent-color); /* 强调色文本 */
    font-weight: 700;
}

.nav-links a.active::after {
    width: 100%;
}

.menu-toggle {
    display: none;
    color: var(--primary-color); /* 主色文本 */
    font-size: 24px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.menu-toggle:hover {
    color: var(--accent-color); /* 强调色文本 */
    transform: rotate(90deg);
}

/* 英雄区域 */
.hero {
    position: relative;
    width: 100%;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
    background-color: var(--primary-color); /* 主色背景 */
}

/* 视频背景 */
.hero .video-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: 0;
}

/* 渐变叠加层 */
.hero .hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(248, 249, 250, 0.7) 0%, rgba(248, 249, 250, 0.5) 100%);
    z-index: 1;
}

.hero .container {
    position: relative;
    z-index: 2;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.hero-content {
    text-align: left;
    max-width: 700px;
    animation: fadeInUp 1s ease-out;
}

.hero-title {
    font-family: 'Orbitron', sans-serif;
    font-size: 56px;
    font-weight: 900;
    color: var(--text-primary); /* 主要文本颜色 */
    line-height: 1.2;
    margin-bottom: 30px;
    text-shadow: 0 0 20px rgba(52, 58, 64, 0.3); /* 辅助色阴影 */
}

.hero-title .highlight {
    color: var(--accent-color); /* 强调色文本 */
    background: none;
    text-shadow: 0 0 15px rgba(0, 123, 255, 0.5);
    -webkit-background-clip: text;
    -webkit-text-fill-color: var(--accent-color);
}

.hero-subtitle {
    font-size: 24px;
    color: var(--text-secondary); /* 次要文本颜色 */
    margin-bottom: 50px;
    max-width: 600px;
    font-weight: 300;
    line-height: 1.5;
    opacity: 0.9;
}

.hero-buttons {
    display: flex;
    gap: 25px;
    flex-wrap: wrap;
    margin-top: 40px;
}

/* 按钮样式调整 */
.hero-buttons .btn-primary {
    background: linear-gradient(45deg, var(--accent-color), var(--accent-light)); /* 强调色渐变 */
    color: white;
    font-weight: 700;
    box-shadow: 0 8px 25px rgba(0, 123, 255, 0.3);
}

.hero-buttons .btn-primary:hover {
    background: linear-gradient(45deg, var(--accent-light), var(--accent-dark));
    box-shadow: 0 12px 35px rgba(0, 123, 255, 0.5);
    transform: translateY(-5px);
}

.hero-buttons .btn-secondary {
    background: transparent;
    color: var(--accent-color); /* 强调色文本 */
    border: 2px solid var(--accent-color);
    font-weight: 700;
    box-shadow: 0 4px 15px rgba(0, 123, 255, 0.2);
}

.hero-buttons .btn-secondary:hover {
    background: rgba(0, 123, 255, 0.1);
    box-shadow: 0 8px 25px rgba(0, 123, 255, 0.4);
    transform: translateY(-5px);
}

/* 动画效果 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 响应式设计 */
@media (max-width: 992px) {
    .hero-title {
        font-size: 48px;
    }
    
    .hero-subtitle {
        font-size: 20px;
    }
}

@media (max-width: 768px) {
    .hero-title {
        font-size: 36px;
    }
    
    .hero-subtitle {
        font-size: 18px;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .hero-buttons .btn {
        width: auto;
        min-width: 200px;
    }
}

/* 产品展示 */
.products {
    padding: 120px 0;
    background: var(--primary-color); /* 主色背景 */
    position: relative;
}

.section-header {
    text-align: center;
    margin-bottom: 80px;
    animation: fadeInUp 1s ease-out;
}

.section-header h2 {
    font-family: 'Orbitron', sans-serif;
    font-size: 42px;
    font-weight: 900;
    color: var(--text-primary); /* 主要文本颜色 */
    margin-bottom: 20px;
}

.section-header p {
    font-size: 18px;
    color: var(--text-secondary); /* 次要文本颜色 */
    max-width: 600px;
    margin: 0 auto;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 35px;
    margin-top: 50px;
}

.product-card {
    background: var(--card-bg); /* 卡片背景色 */
    border: 1px solid var(--border-color); /* 边框颜色 */
    border-radius: 18px;
    padding: 45px 30px;
    text-align: center;
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
    animation: fadeInUp 0.8s ease-out;
    animation-fill-mode: both;
    box-shadow: 0 5px 15px var(--shadow-color); /* 阴影颜色 */
}

.product-card:nth-child(1) { animation-delay: 0.1s; }
.product-card:nth-child(2) { animation-delay: 0.2s; }
.product-card:nth-child(3) { animation-delay: 0.3s; }
.product-card:nth-child(4) { animation-delay: 0.4s; }

.product-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--accent-color), var(--accent-light)); /* 强调色渐变 */
    transform: scaleX(0);
    transition: transform 0.4s ease;
}

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

.product-card:hover {
    transform: translateY(-15px);
    box-shadow: 0 25px 50px rgba(52, 58, 64, 0.2); /* 辅助色阴影 */
    border-color: var(--accent-color); /* 强调色边框 */
    background: rgba(255, 255, 255, 1); /* 卡片背景色 */
}

.product-icon {
    width: 90px;
    height: 90px;
    margin: 0 auto 30px;
    background: linear-gradient(45deg, var(--accent-color), var(--accent-light)); /* 强调色渐变 */
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 36px;
    color: white;
    box-shadow: 0 0 25px rgba(0, 123, 255, 0.3); /* 强调色阴影 */
    transition: all 0.3s ease;
}

.product-card:hover .product-icon {
    transform: scale(1.1) rotate(5deg);
    box-shadow: 0 0 35px rgba(0, 123, 255, 0.5); /* 强调色阴影 */
}

.product-card h3 {
    font-size: 24px;
    color: var(--text-primary); /* 主要文本颜色 */
    margin-bottom: 20px;
    font-weight: 700;
}

.product-card p {
    color: var(--text-secondary); /* 次要文本颜色 */
    line-height: 1.7;
    margin-bottom: 30px;
    font-size: 15px;
    opacity: 0.9;
}

/* 业务范围 */
.business {
    padding: 120px 0;
    background: var(--primary-color); /* 主色背景 */
    position: relative;
}

.business-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 35px;
    margin-top: 60px;
}

.business-item {
    background: var(--card-bg); /* 卡片背景色 */
    border: 1px solid var(--border-color); /* 边框颜色 */
    border-radius: 18px;
    padding: 45px 30px;
    text-align: center;
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
    animation: fadeInUp 0.8s ease-out;
    animation-fill-mode: both;
    box-shadow: 0 5px 15px var(--shadow-color); /* 阴影颜色 */
}

.business-item:nth-child(1) { animation-delay: 0.1s; }
.business-item:nth-child(2) { animation-delay: 0.2s; }
.business-item:nth-child(3) { animation-delay: 0.3s; }
.business-item:nth-child(4) { animation-delay: 0.4s; }

.business-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--accent-color), var(--accent-light)); /* 强调色渐变 */
    transform: scaleX(0);
    transition: transform 0.4s ease;
}

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

.business-item:hover {
    transform: translateY(-15px);
    box-shadow: 0 25px 50px rgba(52, 58, 64, 0.2); /* 辅助色阴影 */
    border-color: var(--accent-color); /* 强调色边框 */
    background: rgba(255, 255, 255, 1); /* 卡片背景色 */
}

.business-icon {
    width: 90px;
    height: 90px;
    margin: 0 auto 30px;
    background: linear-gradient(45deg, var(--accent-color), var(--accent-light)); /* 强调色渐变 */
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 36px;
    color: white;
    box-shadow: 0 0 25px rgba(0, 123, 255, 0.3); /* 强调色阴影 */
    transition: all 0.3s ease;
}

.business-item:hover .business-icon {
    transform: scale(1.1) rotate(-5deg);
    box-shadow: 0 0 35px rgba(0, 123, 255, 0.5); /* 强调色阴影 */
}

.business-item h3 {
    font-size: 24px;
    color: var(--text-primary); /* 主要文本颜色 */
    margin-bottom: 20px;
    font-weight: 700;
}

.business-item p {
    color: var(--text-secondary); /* 次要文本颜色 */
    line-height: 1.7;
    margin-bottom: 0;
    font-size: 15px;
    opacity: 0.9;
}

.business-more {
    text-align: center;
    margin-top: 70px;
    animation: fadeInUp 1s ease-out;
}

/* 公司新闻 */
.news {
    padding: 120px 0;
    background: var(--primary-color); /* 主色背景 */
    position: relative;
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 35px;
    margin-top: 60px;
}

.news-card {
    background: var(--card-bg); /* 卡片背景色 */
    border: 1px solid var(--border-color); /* 边框颜色 */
    border-radius: 18px;
    padding: 35px;
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
    animation: fadeInUp 0.8s ease-out;
    animation-fill-mode: both;
    box-shadow: 0 5px 15px var(--shadow-color); /* 阴影颜色 */
}

.news-card:nth-child(1) { animation-delay: 0.1s; }
.news-card:nth-child(2) { animation-delay: 0.2s; }
.news-card:nth-child(3) { animation-delay: 0.3s; }

.news-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--accent-color), var(--accent-light)); /* 强调色渐变 */
    transform: scaleX(0);
    transition: transform 0.4s ease;
}

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

.news-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(52, 58, 64, 0.2); /* 辅助色阴影 */
    border-color: var(--accent-color); /* 强调色边框 */
    background: rgba(255, 255, 255, 1); /* 卡片背景色 */
}

.news-date {
    font-size: 14px;
    color: var(--accent-color); /* 强调色文本 */
    margin-bottom: 20px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.news-card h3 {
    font-size: 22px;
    color: var(--text-primary); /* 主要文本颜色 */
    margin-bottom: 20px;
    line-height: 1.4;
    font-weight: 700;
    transition: all 0.3s ease;
}

.news-card:hover h3 {
    color: var(--text-primary); /* 主要文本颜色 */
    text-shadow: 0 0 10px rgba(52, 58, 64, 0.2);
}

.news-card p {
    color: var(--text-secondary); /* 次要文本颜色 */
    margin-bottom: 25px;
    line-height: 1.7;
    font-size: 15px;
    opacity: 0.9;
}

.read-more {
    color: var(--accent-color); /* 强调色文本 */
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    font-size: 14px;
}

.read-more:hover {
    color: var(--accent-dark); /* 强调色深色 */
    transform: translateX(10px);
    text-shadow: 0 0 10px rgba(0, 123, 255, 0.2);
}

.read-more i {
    margin-left: 8px;
    font-size: 12px;
    color: var(--accent-color); /* 强调色文本 */
    transition: all 0.3s ease;
}

.read-more:hover i {
    transform: translateX(5px);
}

.news-more {
    text-align: center;
    margin-top: 70px;
    animation: fadeInUp 1s ease-out;
}

/* 关于我们 */
.about {
    padding: 120px 0;
    background: var(--primary-color); /* 主色背景 */
    position: relative;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
    margin-top: 70px;
    animation: fadeInUp 1s ease-out;
}

.about-text h3 {
    font-size: 30px;
    color: var(--text-primary); /* 主要文本颜色 */
    margin-bottom: 30px;
    font-weight: 700;
    font-family: 'Orbitron', sans-serif;
}

.about-text p {
    color: var(--text-secondary); /* 次要文本颜色 */
    margin-bottom: 25px;
    line-height: 1.8;
    font-size: 16px;
    opacity: 0.9;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 35px;
}

.stat-item {
    text-align: center;
    padding: 40px 30px;
    background: var(--card-bg); /* 卡片背景色 */
    border: 1px solid var(--border-color); /* 边框颜色 */
    border-radius: 18px;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    box-shadow: 0 5px 15px var(--shadow-color); /* 阴影颜色 */
}

.stat-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--accent-color), var(--accent-light)); /* 强调色渐变 */
    transform: scaleX(0);
    transition: transform 0.4s ease;
}

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

.stat-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(52, 58, 64, 0.2); /* 辅助色阴影 */
    border-color: var(--accent-color); /* 强调色边框 */
    background: rgba(255, 255, 255, 1); /* 卡片背景色 */
}

.stat-number {
    font-family: 'Orbitron', sans-serif;
    font-size: 52px;
    font-weight: 900;
    color: var(--accent-color); /* 强调色文本 */
    margin-bottom: 15px;
    text-shadow: 0 0 15px rgba(0, 123, 255, 0.3);
    animation: countUp 2s ease-out;
}

.stat-label {
    font-size: 16px;
    color: var(--text-primary); /* 主要文本颜色 */
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
    opacity: 0.8;
}

/* 联系我们 */
.contact {
    padding: 120px 0;
    background: var(--primary-color); /* 主色背景 */
    position: relative;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    margin-top: 70px;
    animation: fadeInUp 1s ease-out;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 25px;
    padding: 30px;
    background: var(--card-bg); /* 卡片背景色 */
    border: 1px solid var(--border-color); /* 边框颜色 */
    border-radius: 18px;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    box-shadow: 0 5px 15px var(--shadow-color); /* 阴影颜色 */
}

.contact-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--accent-color), var(--accent-light)); /* 强调色渐变 */
    transform: scaleX(0);
    transition: transform 0.4s ease;
}

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

.contact-item:hover {
    transform: translateX(15px);
    box-shadow: 0 20px 40px rgba(52, 58, 64, 0.2); /* 辅助色阴影 */
    border-color: var(--accent-color); /* 强调色边框 */
    background: rgba(255, 255, 255, 1); /* 卡片背景色 */
}

.contact-item i {
    font-size: 28px;
    color: var(--accent-color); /* 强调色文本 */
    margin-top: 5px;
    flex-shrink: 0;
    transition: all 0.3s ease;
}

.contact-item:hover i {
    transform: scale(1.2) rotate(10deg);
    color: var(--accent-dark); /* 强调色深色 */
    text-shadow: 0 0 10px rgba(0, 123, 255, 0.3);
}

.contact-item h4 {
    font-size: 20px;
    color: var(--text-primary); /* 主要文本颜色 */
    margin-bottom: 10px;
    font-weight: 700;
}

.contact-item p {
    color: var(--text-secondary); /* 次要文本颜色 */
    line-height: 1.6;
    font-size: 15px;
    margin: 0;
    opacity: 0.9;
}

.contact-form {
    background: var(--card-bg); /* 卡片背景色 */
    border: 1px solid var(--border-color); /* 边框颜色 */
    border-radius: 18px;
    padding: 50px;
    box-shadow: 0 10px 30px var(--shadow-color); /* 阴影颜色 */
    transition: all 0.3s ease;
}

.contact-form:hover {
    box-shadow: 0 20px 50px rgba(52, 58, 64, 0.2); /* 辅助色阴影 */
    border-color: var(--accent-color); /* 强调色边框 */
    background: rgba(255, 255, 255, 1); /* 卡片背景色 */
}

.form-group {
    margin-bottom: 30px;
    position: relative;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 18px 25px;
    background: rgba(255, 255, 255, 0.8); /* 卡片背景色 */
    border: 2px solid var(--border-color); /* 边框颜色 */
    border-radius: 12px;
    color: var(--text-primary); /* 主要文本颜色 */
    font-size: 16px;
    transition: all 0.3s ease;
    font-family: 'Roboto', sans-serif;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-color); /* 强调色边框 */
    box-shadow: 0 0 25px rgba(0, 123, 255, 0.2); /* 强调色阴影 */
    background: rgba(255, 255, 255, 1); /* 卡片背景色 */
    transform: translateY(-2px);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: rgba(52, 58, 64, 0.5); /* 次要文本颜色 */
}

.form-group textarea {
    resize: vertical;
    min-height: 180px;
    max-height: 300px;
}

/* 页脚 */
.footer {
    background: var(--footer-bg); /* 页脚背景色 */
    border-top: 1px solid rgba(248, 249, 250, 0.2); /* 主色边框 */
    padding: 100px 0 40px;
    position: relative;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 60px;
    margin-bottom: 80px;
    animation: fadeInUp 1s ease-out;
}

.footer-logo h3 {
    font-family: 'Orbitron', sans-serif;
    font-size: 28px;
    font-weight: 900;
    margin-bottom: 25px;
    background: linear-gradient(45deg, var(--primary-color), var(--primary-dark)); /* 主色渐变 */
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.footer-logo p {
    color: rgba(248, 249, 250, 0.8); /* 主色文本 */
    line-height: 1.7;
    font-size: 15px;
}

.footer-links h4,
.footer-contact h4,
.footer-social h4 {
    font-size: 20px;
    color: var(--primary-color); /* 主色文本 */
    margin-bottom: 30px;
    font-weight: 700;
    position: relative;
    display: inline-block;
}

.footer-links h4::after,
.footer-contact h4::after,
.footer-social h4::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 50px;
    height: 3px;
    background: linear-gradient(90deg, var(--accent-color), var(--accent-light)); /* 强调色渐变 */
    border-radius: 2px;
}

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

.footer-links li {
    margin-bottom: 15px;
}

.footer-links a {
    color: rgba(248, 249, 250, 0.8); /* 主色文本 */
    text-decoration: none;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    font-size: 15px;
}

.footer-links a:hover {
    color: var(--accent-color); /* 强调色文本 */
    transform: translateX(10px);
}

.footer-links a i {
    margin-right: 10px;
    font-size: 12px;
    color: var(--accent-color); /* 强调色文本 */
    transition: all 0.3s ease;
}

.footer-links a:hover i {
    transform: translateX(5px);
}

.footer-contact p {
    color: rgba(248, 249, 250, 0.8); /* 主色文本 */
    line-height: 1.8;
    margin-bottom: 20px;
    font-size: 15px;
}

.social-icons {
    display: flex;
    gap: 20px;
    margin-top: 30px;
}

.social-icons a {
    width: 50px;
    height: 50px;
    background: rgba(248, 249, 250, 0.1); /* 主色透明背景 */
    border: 2px solid rgba(248, 249, 250, 0.2); /* 主色边框 */
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(248, 249, 250, 0.8); /* 主色文本 */
    transition: all 0.3s ease;
    font-size: 20px;
}

.social-icons a:hover {
    background: var(--accent-color); /* 强调色背景 */
    color: var(--primary-color); /* 主色文本 */
    transform: translateY(-8px) rotate(15deg);
    box-shadow: 0 10px 25px rgba(0, 123, 255, 0.4); /* 强调色阴影 */
    border-color: var(--accent-color); /* 强调色边框 */
}

.footer-bottom {
    text-align: center;
    padding-top: 50px;
    border-top: 1px solid rgba(248, 249, 250, 0.2); /* 主色边框 */
    color: rgba(248, 249, 250, 0.8); /* 主色文本 */
    font-size: 14px;
    animation: fadeInUp 1s ease-out;
    animation-delay: 0.3s;
}

/* 产品详情页 */
.products-hero {
    padding: 150px 0 80px;
    background: linear-gradient(135deg, var(--dark-bg) 0%, var(--darker-bg) 100%);
    text-align: center;
    animation: fadeInUp 1s ease-out;
}

.products-hero .hero-title {
    font-size: 48px;
    margin-bottom: 15px;
}

.core-products {
    padding: 120px 0;
    background: var(--dark-bg);
    position: relative;
}

.core-products .section-header {
    margin-bottom: 70px;
}

.core-products .section-header h3 {
    font-family: 'Orbitron', sans-serif;
    font-size: 36px;
    font-weight: 900;
    color: var(--text-primary);
    margin-bottom: 20px;
}

.core-products-grid {
    display: flex;
    flex-direction: column;
    gap: 60px;
    margin-top: 70px;
}

.product-card-large {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    overflow: hidden;
    transition: all 0.4s ease;
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 60px;
    padding: 60px;
    animation: fadeInUp 0.8s ease-out;
}

.product-card-large:nth-child(1) { animation-delay: 0.1s; }
.product-card-large:nth-child(2) { animation-delay: 0.2s; }
.product-card-large:nth-child(3) { animation-delay: 0.3s; }

.product-card-large:hover {
    transform: translateY(-10px);
    box-shadow: 0 30px 60px rgba(0, 212, 255, 0.15);
    border-color: rgba(0, 212, 255, 0.5);
    background: rgba(26, 31, 58, 0.95);
}

.product-card-large.reverse {
    grid-template-columns: 2fr 1fr;
}

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

.product-icon-large {
    width: 150px;
    height: 150px;
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 64px;
    color: white;
    box-shadow: 0 0 40px rgba(0, 212, 255, 0.5);
    transition: all 0.3s ease;
}

.product-card-large:hover .product-icon-large {
    transform: scale(1.1) rotate(10deg);
    box-shadow: 0 0 60px rgba(0, 212, 255, 0.7);
}

.product-detail-content h3 {
    font-size: 32px;
    color: var(--text-primary);
    margin-bottom: 25px;
    font-weight: 900;
    font-family: 'Orbitron', sans-serif;
}

.product-description {
    color: var(--text-secondary);
    margin-bottom: 40px;
    line-height: 1.8;
    font-size: 16px;
}

.product-features h4 {
    font-size: 22px;
    color: var(--primary-color);
    margin-bottom: 25px;
    font-weight: 700;
}

.product-features ul {
    list-style: none;
    margin-bottom: 40px;
}

.product-features li {
    color: var(--text-secondary);
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    gap: 15px;
    font-size: 15px;
    line-height: 1.7;
}

.product-features li i {
    color: var(--accent-color);
    font-size: 18px;
    flex-shrink: 0;
    transition: all 0.3s ease;
}

.product-card-large:hover .product-features li i {
    transform: scale(1.2) rotate(10deg);
    color: var(--primary-color);
}

.product-cta {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.product-advantages {
    padding: 120px 0;
    background: linear-gradient(135deg, var(--dark-bg) 0%, var(--darker-bg) 100%);
    position: relative;
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 40px;
    margin-top: 70px;
}

.advantage-item {
    text-align: center;
    padding: 50px 40px;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
    animation: fadeInUp 0.8s ease-out;
}

.advantage-item:nth-child(1) { animation-delay: 0.1s; }
.advantage-item:nth-child(2) { animation-delay: 0.2s; }
.advantage-item:nth-child(3) { animation-delay: 0.3s; }
.advantage-item:nth-child(4) { animation-delay: 0.4s; }

.advantage-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.1) 0%, transparent 100%);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.advantage-item:hover::before {
    opacity: 1;
}

.advantage-item:hover {
    transform: translateY(-15px);
    box-shadow: 0 30px 60px rgba(0, 212, 255, 0.15);
    border-color: rgba(0, 212, 255, 0.5);
}

.advantage-item i {
    font-size: 56px;
    color: var(--primary-color);
    margin-bottom: 30px;
    transition: all 0.3s ease;
}

.advantage-item:hover i {
    transform: scale(1.2) rotate(15deg);
    color: var(--secondary-color);
}

.advantage-item h4 {
    font-size: 22px;
    color: var(--text-primary);
    margin-bottom: 20px;
    font-weight: 700;
}

.advantage-item p {
    color: var(--text-secondary);
    line-height: 1.7;
    font-size: 15px;
    margin: 0;
}

.contact-cta {
    padding: 120px 0;
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
    text-align: center;
    position: relative;
    overflow: hidden;
    animation: fadeInUp 1s ease-out;
}

.contact-cta::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('../images/tech-bg.png') center/cover no-repeat;
    opacity: 0.1;
}

.contact-cta h3 {
    font-size: 40px;
    color: white;
    margin-bottom: 20px;
    font-weight: 900;
    font-family: 'Orbitron', sans-serif;
    position: relative;
    z-index: 1;
    text-shadow: 0 0 20px rgba(0, 0, 0, 0.3);
}

.contact-cta p {
    font-size: 20px;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 40px;
    position: relative;
    z-index: 1;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.contact-cta .btn-primary {
    background: white;
    color: var(--primary-color);
    box-shadow: 0 8px 25px rgba(255, 255, 255, 0.3);
    position: relative;
    z-index: 1;
}

.contact-cta .btn-primary:hover {
    background: rgba(255, 255, 255, 0.9);
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(255, 255, 255, 0.4);
}

/* 业务范围页面 */
.business-hero {
    padding: 150px 0 80px;
    background: linear-gradient(135deg, var(--dark-bg) 0%, var(--darker-bg) 100%);
    text-align: center;
    animation: fadeInUp 1s ease-out;
}

.business-hero .hero-title {
    font-size: 48px;
    margin-bottom: 15px;
}

.business-showcase {
    padding: 120px 0;
    background: var(--dark-bg);
    position: relative;
}

.business-showcase .business-grid {
    margin-top: 70px;
}

.business-advantages {
    padding: 120px 0;
    background: linear-gradient(135deg, var(--dark-bg) 0%, var(--darker-bg) 100%);
    position: relative;
}

.service-process {
    padding: 120px 0;
    background: var(--dark-bg);
    position: relative;
}

.service-process .section-header {
    margin-bottom: 70px;
}

.process-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    margin-top: 70px;
}

.process-step {
    text-align: center;
    padding: 50px 30px;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
    animation: fadeInUp 0.8s ease-out;
}

.process-step:nth-child(1) { animation-delay: 0.1s; }
.process-step:nth-child(2) { animation-delay: 0.2s; }
.process-step:nth-child(3) { animation-delay: 0.3s; }
.process-step:nth-child(4) { animation-delay: 0.4s; }
.process-step:nth-child(5) { animation-delay: 0.5s; }

.process-step::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.1) 0%, transparent 100%);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.process-step:hover::before {
    opacity: 1;
}

.process-step:hover {
    transform: translateY(-15px);
    box-shadow: 0 30px 60px rgba(0, 212, 255, 0.15);
    border-color: rgba(0, 212, 255, 0.5);
}

.step-number {
    font-family: 'Orbitron', sans-serif;
    font-size: 48px;
    font-weight: 900;
    color: var(--primary-color);
    margin-bottom: 25px;
    text-shadow: 0 0 20px rgba(0, 212, 255, 0.5);
    transition: all 0.3s ease;
}

.process-step:hover .step-number {
    transform: scale(1.2);
    color: var(--secondary-color);
}

.process-step h4 {
    font-size: 22px;
    color: var(--text-primary);
    margin-bottom: 15px;
    font-weight: 700;
}

.process-step p {
    color: var(--text-secondary);
    line-height: 1.7;
    font-size: 15px;
    margin: 0;
}

/* 动画定义 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

@keyframes countUp {
    from {
        opacity: 0;
        transform: scale(0.5);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* 滚动触发动画 */
.animate-in {
    animation: fadeInUp 0.8s ease-out forwards;
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .hero .container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 40px;
    }
    
    .hero-content {
        order: 2;
    }
    
    .hero-animation {
        order: 1;
        height: 400px;
    }
    
    .about-content,
    .contact-content {
        grid-template-columns: 1fr;
        gap: 60px;
    }
    
    .product-card-large,
    .product-card-large.reverse {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }
    
    .product-cta {
        justify-content: center;
    }
    
    .about-stats {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .news-grid {
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    }
}

@media (max-width: 992px) {
    .nav-links {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: rgba(242, 224, 189, 0.98); /* 颜色1 */
        backdrop-filter: blur(20px);
        padding: 30px 20px;
        gap: 20px;
        box-shadow: 0 10px 25px rgba(34, 36, 39, 0.2); /* 颜色2的阴影 */
        border-top: 1px solid rgba(34, 36, 39, 0.2); /* 颜色2的边框 */
        z-index: 999;
        animation: fadeInUp 0.3s ease-out;
    }
    
    .nav-links.active {
        display: flex;
    }
    
    .menu-toggle {
        display: block;
    }
    
    .hero-title {
        font-size: 48px;
    }
    
    .section-header h2 {
        font-size: 36px;
    }
    
    .products-grid,
    .business-grid,
    .news-grid,
    .advantages-grid {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
        gap: 30px;
    }
    
    .process-steps {
        grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
        gap: 30px;
    }
}

@media (max-width: 768px) {
    .hero-title {
        font-size: 38px;
    }
    
    .hero-subtitle {
        font-size: 18px;
    }
    
    .section-header h2 {
        font-size: 32px;
    }
    
    .section-header p {
        font-size: 16px;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
        gap: 15px;
    }
    
    .btn {
        margin: 5px;
        width: 200px;
    }
    
    .about-stats {
        grid-template-columns: 1fr;
    }
    
    .contact-item {
        flex-direction: column;
        align-items: center;
        text-align: center;
        gap: 20px;
    }
    
    .contact-form {
        padding: 40px 30px;
    }
    
    .product-card-large {
        padding: 40px 30px;
    }
    
    .process-steps {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 50px;
        text-align: center;
    }
    
    .social-icons {
        justify-content: center;
    }
    
    .products-hero .hero-title,
    .business-hero .hero-title {
        font-size: 42px;
    }
    
    .contact-cta h3 {
        font-size: 32px;
    }
    
    .contact-cta p {
        font-size: 18px;
    }
}

@media (max-width: 576px) {
    .hero-title {
        font-size: 32px;
    }
    
    .hero-subtitle {
        font-size: 16px;
    }
    
    .section-header h2 {
        font-size: 28px;
    }
    
    .logo h1 {
        font-size: 24px;
    }
    
    .container {
        padding: 0 15px;
    }
    
    .products,
    .business,
    .news,
    .about,
    .contact,
    .core-products,
    .product-advantages,
    .business-showcase,
    .business-advantages,
    .service-process {
        padding: 80px 0;
    }
    
    .product-card,
    .business-item,
    .news-card,
    .stat-item,
    .contact-item,
    .advantage-item,
    .process-step {
        padding: 30px 20px;
    }
    
    .product-icon,
    .business-icon {
        width: 70px;
        height: 70px;
        font-size: 28px;
        margin-bottom: 25px;
    }
    
    .step-number {
        font-size: 40px;
    }
    
    .product-card-large {
        padding: 30px 20px;
    }
    
    .product-detail-content h3 {
        font-size: 28px;
    }
    
    .contact-cta {
        padding: 80px 20px;
    }
    
    .contact-cta h3 {
        font-size: 28px;
    }
    
    .footer {
        padding: 80px 0 30px;
    }
    
    .footer-content {
        gap: 40px;
    }
}

/* 滚动条样式 */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: var(--darker-bg);
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(45deg, var(--secondary-color), var(--primary-color));
    box-shadow: 0 0 15px rgba(0, 212, 255, 0.5);
}

/* 选择文本样式 */
::selection {
    background: rgba(0, 212, 255, 0.2);
    color: var(--primary-color);
}

::-moz-selection {
    background: rgba(0, 212, 255, 0.2);
    color: var(--primary-color);
}

/* 加载动画 */
.loading {
    display: inline-block;
    width: 40px;
    height: 40px;
    border: 3px solid var(--border-color);
    border-radius: 50%;
    border-top-color: var(--primary-color);
    animation: spin 1s ease-in-out infinite;
}

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

/* 脉动动画 */
@keyframes pulse {
    0%, 100% {
        opacity: 1;
        transform: scale(1);
    }
    50% {
        opacity: 0.7;
        transform: scale(1.05);
    }
}

/* 悬停缩放动画 */
@keyframes hoverScale {
    0% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
    100% {
        transform: scale(1);
    }
}

/* 添加到动态元素的类 */
.pulse {
    animation: pulse 2s ease-in-out infinite;
}

.hover-scale {
    transition: transform 0.3s ease;
}

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

/* 页面过渡效果 */
.page-transition {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
    z-index: 9999;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.5s ease;
}

.page-transition.active {
    opacity: 1;
}