/* 基础重置与全局设置 */
body {
    font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; /* 选用现代、干净的字体 */
    margin: 0;
    padding: 0;
    line-height: 1.6;
    color: #333; /* 经典深色文字 */
    background-color: #f9f9f9; /* 柔和的背景色 */
}

.container {
    width: 90%;
    max-width: 1200px; /* 限制最大宽度，增强大气感 */
    margin: 0 auto;
    padding: 20px 0;
}

a {
    text-decoration: none;
    color: #007bff; /* 强调色，可根据企业VI调整 */
    transition: color 0.3s;
}

a:hover {
    color: #0056b3;
}

/* 头部导航栏 */
header {
    background: #fff; /* 简洁的白色背景 */
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
    position: sticky;
    top: 0;
    z-index: 1000;
}

header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 0;
}

.logo {
    font-size: 1.8em;
    font-weight: 700;
    color: #333;
    margin: 0;
}

nav ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
}

nav ul li {
    margin-left: 30px;
}

nav ul li a {
    color: #555;
    font-size: 1.1em;
    font-weight: 500;
    padding: 5px 0;
    border-bottom: 2px solid transparent; /* 保持简约，用下划线做hover效果 */
}

nav ul li a:hover {
    color: #007bff;
    border-bottom-color: #007bff;
}

/* 主视觉区域/英雄区域 */
.hero {
    background: url('C:/Users/Administrator/Desktop/Kuaci_website/main/airplane.jpg') no-repeat center center/cover;
    /* 替换为实际图片路径 */
    color: #fff;
    text-align: center;
    padding: 150px 0;
    min-height: 500px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    /* 添加半透明遮罩增强文字可读性 */
    box-shadow: inset 0 0 0 1000px rgba(0, 0, 0, 0.5); 
}

.hero h2 {
    font-size: 3.5em;
    margin-bottom: 15px;
    font-weight: 300; /* 使用细体增强大气感 */
}

.hero p {
    font-size: 1.5em;
    font-weight: 300;
    margin-bottom: 40px;
}

.highlight {
    font-weight: 700;
    color: #007bff; /* 突出强调色 */
}

.cta-button {
    background: #007bff;
    color: #fff;
    padding: 12px 30px;
    border-radius: 5px;
    font-weight: 600;
    letter-spacing: 1px;
    display: inline-block;
    transition: background-color 0.3s;
}

.cta-button:hover {
    background: #0056b3;
}

/* 通用区块样式 */
.section {
    padding: 80px 0;
    text-align: center;
}

.section h3 {
    font-size: 2.5em;
    margin-bottom: 50px;
    font-weight: 300;
    border-bottom: 2px solid #ccc;
    display: inline-block;
    padding-bottom: 10px;
}

.dark-bg {
    background-color: #eef1f6; /* 浅灰色背景，用于区分区块 */
    color: #333;
}

/* 关于我们区块 */
#about .content-wrapper {
    display: flex;
    align-items: center;
    text-align: left;
    gap: 40px;
}

#about .text-content {
    flex: 1;
    font-size: 1.1em;
}

#about .image-content {
    flex: 1;
}

#about .image-content img {
    width: 100%;
    height: auto;
    border-radius: 5px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
}

/* 核心业务区块 */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    text-align: center;
}

.service-item {
    background: #fff;
    padding: 40px 20px;
    border-radius: 5px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s, box-shadow 0.3s;
}

.service-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.service-item img {
    width: 60px; /* 图标尺寸 */
    height: 60px;
    margin-bottom: 20px;
}

.service-item h4 {
    font-size: 1.5em;
    margin-top: 0;
    margin-bottom: 15px;
}

/* 团队介绍区块 */
.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.team-member {
    text-align: center;
    padding: 20px;
    background: #fff;
    border-radius: 5px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
}

.team-member img {
    width: 150px;
    height: 150px;
    object-fit: cover;
    border-radius: 50%; /* 圆形头像 */
    margin-bottom: 15px;
    border: 3px solid #007bff; /* 强调色边框 */
}

.team-member h4 {
    margin-bottom: 5px;
    font-size: 1.3em;
}

.team-member .title {
    color: #888;
    margin-top: 0;
    font-style: italic;
    margin-bottom: 10px;
}

/* 联系我们区块 */
#contact address {
    font-style: normal;
    font-size: 1.2em;
}

#contact p {
    margin-bottom: 10px;
}

/* 页脚 */
footer {
    background: #333;
    color: #fff;
    padding: 30px 0;
    text-align: center;
    font-size: 0.9em;
}

/* 响应式设计 */
@media (max-width: 768px) {
    header .container {
        flex-direction: column;
    }

    nav ul {
        margin-top: 10px;
    }

    nav ul li {
        margin: 0 10px;
    }

    .hero {
        padding: 100px 20px;
    }
    
    .hero h2 {
        font-size: 2.5em;
    }

    .hero p {
        font-size: 1.2em;
    }

    #about .content-wrapper {
        flex-direction: column;
        text-align: center;
    }
}