/* 联创云智企业官网 - 全局样式 */

/* ==================== 重置和基础样式 ==================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* 主色调 - 参考logo的蓝色 */
    --primary-color: #1a5a8e;
    --primary-dark: #0f3d6b;
    --primary-light: #2875ae;

    /* 辅助色 - 参考logo的橙色 */
    --secondary-color: #e07843;
    --accent-color: #f8f9fa;
    --accent-orange: #e89850;
    --accent-gold: #d9a558;

    /* 文字颜色 */
    --text-primary: #333333;
    --text-secondary: #666666;
    --text-light: #999999;
    --border-color: #e0e0e0;
    --bg-gray: #f5f7fa;

    /* 字体 */
    --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", "微软雅黑", sans-serif;

    /* 间距 */
    --section-padding: 80px 0;
    --container-padding: 0 20px;
    --max-width: 1200px;
}

body {
    font-family: var(--font-family);
    color: var(--text-primary);
    line-height: 1.6;
    background-color: #ffffff;
}

a {
    text-decoration: none;
    color: inherit;
    transition: color 0.3s ease;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* ==================== 容器 ==================== */
.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: var(--container-padding);
}

/* ==================== 页面标题样式 ==================== */
.page-header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
    padding: 120px 0 60px;
    text-align: center;
}

.page-header h1 {
    font-size: 42px;
    font-weight: 600;
    margin-bottom: 15px;
}

.page-header p {
    font-size: 18px;
    opacity: 0.9;
}

/* ==================== 章节标题 ==================== */
.section-title {
    text-align: center;
    margin-bottom: 60px;
}

.section-title h2 {
    font-size: 36px;
    color: var(--primary-color);
    margin-bottom: 15px;
    font-weight: 600;
}

.section-title p {
    font-size: 16px;
    color: var(--text-secondary);
}

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background-color: var(--secondary-color);
    margin: 20px auto 0;
}

/* ==================== 按钮样式 ==================== */
.btn {
    display: inline-block;
    padding: 12px 32px;
    font-size: 16px;
    font-weight: 500;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
    text-align: center;
}

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

.btn-primary:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(26, 58, 107, 0.3);
}

.btn-outline {
    background-color: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

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

/* ==================== 卡片样式 ==================== */
.card {
    background: white;
    border-radius: 8px;
    padding: 30px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    height: 100%;
}

.card:hover {
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
    transform: translateY(-5px);
}

.card-icon {
    width: 64px;
    height: 64px;
    background-color: var(--accent-color);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    color: var(--primary-color);
    font-size: 32px;
}

.card h3 {
    font-size: 20px;
    color: var(--primary-color);
    margin-bottom: 15px;
    font-weight: 600;
}

.card p {
    color: var(--text-secondary);
    font-size: 15px;
    line-height: 1.8;
}

/* ==================== 网格布局 ==================== */
.grid {
    display: grid;
    gap: 30px;
}

.grid-2 {
    grid-template-columns: repeat(2, 1fr);
}

.grid-3 {
    grid-template-columns: repeat(3, 1fr);
}

.grid-4 {
    grid-template-columns: repeat(4, 1fr);
}

/* ==================== 响应式设计 ==================== */
@media (max-width: 992px) {
    .grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .grid-3 {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .page-header h1 {
        font-size: 36px;
    }
    
    .section-title h2 {
        font-size: 32px;
    }
}

@media (max-width: 768px) {
    :root {
        --section-padding: 50px 0;
    }
    
    .grid-2,
    .grid-3,
    .grid-4 {
        grid-template-columns: 1fr;
    }
    
    .page-header {
        padding: 100px 0 40px;
    }
    
    .page-header h1 {
        font-size: 28px;
    }
    
    .section-title h2 {
        font-size: 28px;
    }
    
    .section-title {
        margin-bottom: 40px;
    }
}

/* ==================== 工具类 ==================== */
.text-center {
    text-align: center;
}

.mb-20 {
    margin-bottom: 20px;
}

.mb-30 {
    margin-bottom: 30px;
}

.mb-40 {
    margin-bottom: 40px;
}

.mt-40 {
    margin-top: 40px;
}

.section {
    padding: var(--section-padding);
}

.section-gray {
    background-color: var(--bg-gray);
}

.section-white {
    background-color: white;
}