:root {
    --primary-color: #3498db;
    --secondary-color: #2c3e50;
    --accent-color: #e74c3c;
    --light-bg: #f8f9fa;
    --dark-text: #2c3e50;
    --light-text: #ffffff;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Microsoft YaHei', Arial, sans-serif;
    line-height: 1.6;
    color: var(--dark-text);
    background: var(--light-bg);
}
.zhengshu{
	width:300px;
}
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 头部样式 */
header {
    background: linear-gradient(135deg, var(--secondary-color), var(--primary-color));
    color: var(--light-text);
    padding: 1rem 0;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

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

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

.logo img {
    width: 50px;
    height: 50px;
    border-radius: 8px;
}

.logo-text {
    font-size: 1.5rem;
    font-weight: bold;
}

.logo-subtext {
    font-size: 0.9rem;
    opacity: 0.9;
}

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

nav a {
    color: var(--light-text);
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: 5px;
    transition: background-color 0.3s ease;
}

nav a:hover {
    background-color: rgba(255,255,255,0.1);
}

/* 主内容区 */
main {
    margin-top: 80px;
    min-height: calc(100vh - 200px);
}

.hero {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
    color: var(--light-text);
    text-align: center;
    padding: 100px 0 80px;
    margin-bottom: 40px;
    position: relative;
    overflow: hidden;
    color:white;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('images/hero-bg.jpg') center/cover;
    opacity: 0.08;
    z-index: 1;
}

.hero::after {
    display: none;
}

.hero .container {
    position: relative;
    z-index: 3;
}

.hero h1 {
    font-size: 2.8rem;
    font-weight: 600;
    margin-bottom: 1rem;
    text-shadow: 1px 1px 3px rgba(0,0,0,0.3);
    animation: fadeInUp 0.6s ease;
    letter-spacing: 1px;
}

.hero .subtitle {
    font-size: 1.2rem;
    margin-bottom: 0.8rem;
    opacity: 0.85;
    font-weight: 400;
    animation: fadeInUp 0.6s ease 0.1s both;
}

.hero p {
    font-size: 1rem;
    max-width: 600px;
    margin: 0 auto 1.8rem;
    opacity: 0.8;
    line-height: 1.6;
    animation: fadeInUp 0.6s ease 0.2s both;
}

.hero .controls {
    display: flex;
    gap: 15px;
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeInUp 0.6s ease 0.3s both;
}

.hero .lzui-button {
    padding: 12px 35px;
    font-size: 0.95rem;
    font-weight: 500;
    border-radius: 8px;
    transition: all 0.2s ease;
    box-shadow: 0 2px 10px rgba(0,0,0,0.2);
}

.hero .lzui-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0,0,0,0.25);
}

.hero .lzui-button:not(:first-child) {
    background: transparent;
    border: 1px solid rgba(255,255,255,0.6);
    color: white;
}

.hero .lzui-button:not(:first-child):hover {
    background: rgba(255,255,255,0.1);
    border-color: white;
}

/* 装饰性圆点 - 简化 */
.hero-dots {
    display: none;
}

.section {
    padding: 60px 0;
}

.section-title {
    text-align: center;
    margin-bottom: 3rem;
    color: var(--secondary-color);
}

.section-title h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.section-title p {
    color: #666;
    font-size: 1.1rem;
}

.services-grid,
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

/* 产品分类样式 */
.product-category {
    margin-bottom: 3rem;
}

.category-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 1.5rem;
    padding-bottom: 0.8rem;
    border-bottom: 2px solid var(--primary-color);
}

.category-icon {
    font-size: 1.5rem;
}

.category-header h3 {
    font-size: 1.3rem;
    color: var(--secondary-color);
    margin: 0;
}

.service-card,
.product-card {
    background: white;
    padding: 1.5rem;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    transition: transform 0.3s ease;
}

.service-card {
    text-align: center;
}

.service-card:hover,
.product-card:hover {
    transform: translateY(-5px);
}

.service-icon {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.product-image {
    position: relative;
    overflow: hidden;
    border-radius: 8px;
    margin-bottom: 1rem;
    height: 200px;
    background: #f5f7fa;
}

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

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

.product-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.product-image:hover .product-overlay {
    opacity: 1;
}

.product-info {
    padding: 0 1rem;
}

.product-info h3,
.partner-info h3 {
    color: var(--secondary-color);
    margin-bottom: 0.5rem;
}

.product-info p,
.partner-info p {
    color: #666;
    font-size: 0.9rem;
}

.partners-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.partner-card {
    background: white;
    padding: 1.5rem;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    transition: transform 0.3s ease;
    text-align: center;
}

.partner-card:hover {
    transform: translateY(-5px);
}

/* 案例画廊样式 */
.case-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.case-item {
    background: white;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    cursor: pointer;
}

.case-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0,0,0,0.15);
}

.case-image {
    width: 100%;
    height: 200px;
    overflow: hidden;
}

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

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

.case-title {
    padding: 1rem;
    text-align: center;
}

.case-title h3 {
    font-size: 1.1rem;
    color: var(--secondary-color);
    margin: 0;
}

/* 隐藏气路产品标题 */
.product-category[data-category="气路产品"] .product-info {
    display: none;
}

.product-category[data-category="气路产品"] .product-image {
    height: 250px;
}

.partner-logo {
    height: 100px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1rem;
}

.partner-logo img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

/* 页脚样式 */
footer {
    background: var(--secondary-color);
    color: var(--light-text);
    padding: 2rem 0;
    text-align: center;
}

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

.footer-section h3 {
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.footer-bottom {
    margin-top: 2rem;
    padding-top: 1rem;
    border-top: 1px solid rgba(255,255,255,0.1);
}

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

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

/* 响应式设计 */
@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        gap: 1rem;
    }
    
    nav ul {
        flex-direction: column;
        gap: 1rem;
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    .hero p {
        font-size: 1rem;
    }
}