/* 添加颜色变量 */
:root {
    --primary-color: #001B48; /* 深邃科技蓝背景 */
    --accent-color: #00A6FB; /* 明亮科技蓝 */
    --gradient-start: #001B48; /* 渐变起始色 */
    --gradient-end: #003D7A; /* 渐变结束色 */
    --glow-color: #00A6FB; /* 光晕效果色 */
    --text-color: #ffffff; /* 文字颜色 */
    --card-bg: rgba(0, 61, 122, 0.4); /* 卡片背景 */
}

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

body {
    font-family: 'Microsoft YaHei', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--primary-color);
}

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

/* 导航栏样式 */
nav {
    background-color: rgba(0, 27, 72, 0.95);
    border-bottom: 1px solid rgba(0, 166, 251, 0.1);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

.logo {
    font-size: 24px;
    font-weight: bold;
    color: var(--accent-color);
}

nav .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

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

.nav-links li {
    margin-left: 30px;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 500;
    transition: color 0.3s;
}

.nav-links a:hover {
    color: var(--accent-color);
    text-shadow: 0 0 10px rgba(0, 166, 251, 0.5);
}

/* 首页横幅样式 */
.hero {
    background: linear-gradient(135deg, #001B48 0%, #0050d1 100%);
    position: relative;
    overflow: hidden;
    color: white;
    padding: 220px 0 180px;
    text-align: center;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 50%, rgba(0, 166, 251, 0.2) 0%, transparent 50%),
        radial-gradient(circle at 80% 50%, rgba(0, 166, 251, 0.2) 0%, transparent 50%),
        linear-gradient(45deg, rgba(0, 166, 251, 0.1) 0%, transparent 70%);
    animation: glowPulse 8s infinite alternate;
}

@keyframes glowPulse {
    0% {
        opacity: 0.5;
    }
    100% {
        opacity: 1;
    }
}

.hero h1 {
    font-size: 64px;
    margin-bottom: 30px;
    text-shadow: 0 0 30px rgba(0, 166, 251, 0.5);
    position: relative;
    font-weight: 700;
    letter-spacing: 2px;
    animation: titleFadeIn 1.5s ease-out;
}

.hero p {
    font-size: 28px;
    color: #00A6FB;
    text-shadow: 0 0 15px rgba(0, 166, 251, 0.7);
    letter-spacing: 4px;
    font-weight: 500;
    animation: subtitleFadeIn 1.5s ease-out 0.5s both;
    margin-top: 20px;
}

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

@keyframes subtitleFadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.cta-button {
    display: inline-block;
    padding: 15px 40px;
    background-color: transparent;
    color: var(--accent-color);
    text-decoration: none;
    border-radius: 30px;
    font-weight: bold;
    transition: transform 0.3s;
    border: 1px solid var(--accent-color);
}

.cta-button:hover {
    transform: translateY(-3px);
    background-color: rgba(0, 212, 255, 0.1);
}

/* 各部分通用样式 */
section {
    padding: 80px 0;
}

h2 {
    text-align: center;
    color: var(--accent-color);
    margin-bottom: 40px;
}

/* 服务部分样式 */
.service-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.service-item {
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(0, 166, 251, 0.2);
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 166, 251, 0.1);
    text-align: center;
}

.service-item h3 {
    color: var(--accent-color);
    margin-bottom: 15px;
}

/* 服务部分样式补充 */
.service-item i {
    font-size: 40px;
    color: var(--accent-color);
    margin-bottom: 20px;
}

/* 联系我们样式 */
.contact {
    background-color: var(--primary-color);
}

.contact-info {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
}

.info-item {
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(0, 166, 251, 0.2);
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 166, 251, 0.1);
}

.info-item i {
    font-size: 40px;
    color: var(--accent-color);
    margin-bottom: 20px;
}

.info-item h3 {
    color: var(--accent-color);
    margin-bottom: 15px;
}

/* 页脚样式 */
footer {
    background-color: var(--gradient-start);
    border-top: 1px solid rgba(0, 166, 251, 0.1);
    color: white;
    padding: 20px 0;
    text-align: center;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .hero {
        padding: 180px 0 140px;
    }
    
    .hero h1 {
        font-size: 36px;
    }
    
    .hero p {
        font-size: 20px;
        letter-spacing: 2px;
    }
    
    .contact-info {
        grid-template-columns: 1fr;
    }
} 

/* 添加 Font Awesome 图标支持 */
@import url('https://cdnjs.cloudflare.com/ajax/libs/font-awesome/5.15.4/css/all.min.css');

/* Logo样式优化 */
.logo {
    display: flex;
    align-items: center;
}

.logo-img {
    height: 40px;
    margin-right: 10px;
}

/* 关于我们部分样式 */
.about-content {
    max-width: 900px;
    margin: 0 auto;
}

.about-text {
    text-align: center;
}

.company-intro {
    margin-bottom: 40px;
    font-size: 18px;
    line-height: 1.8;
}

.company-features {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-top: 30px;
}

.feature {
    text-align: center;
    padding: 20px;
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(0, 166, 251, 0.2);
    border-radius: 10px;
}

.feature h4 {
    color: var(--accent-color);
    font-size: 24px;
    margin-bottom: 10px;
}

.about-image {
    flex: 1;
}

.about-image img {
    width: 100%;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

/* 核心优势样式 */
.advantages {
    background: var(--primary-color);
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.advantage-item {
    text-align: center;
    padding: 30px;
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(0, 166, 251, 0.2);
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 166, 251, 0.1);
}

.advantage-item i {
    font-size: 40px;
    color: var(--accent-color);
    margin-bottom: 20px;
}

.advantage-item h3 {
    color: var(--accent-color);
    margin-bottom: 15px;
}

/* 联系我们样式优化 */
.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
}

.contact-form form {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.contact-form input,
.contact-form textarea {
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 5px;
}

.contact-form textarea {
    height: 150px;
}

.submit-btn {
    background: #1e88e5;
    color: white;
    padding: 15px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    transition: background 0.3s;
}

.submit-btn:hover {
    background: #1565c0;
}

/* 响应式设计补充 */
@media (max-width: 768px) {
    .about-content,
    .advantages-grid,
    .cases-grid,
    .news-grid,
    .contact-wrapper {
        grid-template-columns: 1fr;
    }
    
    .company-features {
        grid-template-columns: repeat(2, 1fr);
    }
} 

/* 添加卡片悬停效果 */
.service-item:hover, .advantage-item:hover, .info-item:hover {
    border-color: var(--accent-color);
    box-shadow: 0 8px 25px rgba(0, 166, 251, 0.2);
    transform: translateY(-5px);
    transition: all 0.3s ease;
}