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

body {
    font-family: 'Noto Sans SC', sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f8f9fa;
}

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

/* 导航栏样式 */
.navbar {
    background-color: #2c3e50;
    color: white;
    padding: 1rem 0;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

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

.navbar-brand h1 {
    font-size: 1.5rem;
    font-weight: 500;
}

.navbar-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.navbar-link {
    color: white;
    text-decoration: none;
    font-weight: 400;
    transition: color 0.3s ease;
}

.navbar-link:hover {
    color: #3498db;
}

.navbar-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    cursor: pointer;
}

.navbar-toggle .bar {
    width: 25px;
    height: 3px;
    background-color: white;
    border-radius: 2px;
    transition: all 0.3s ease;
}

/* 英雄区域样式 */
.hero {
    background: linear-gradient(135deg, #3498db, #2980b9);
    color: white;
    padding: 8rem 0 4rem;
    margin-top: 60px;
    text-align: center;
}

.hero h1 {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    font-weight: 700;
}

.report-info {
    display: flex;
    justify-content: center;
    gap: 3rem;
    flex-wrap: wrap;
    font-size: 1.1rem;
}

/* 主要内容样式 */
.main-content {
    padding: 2rem 0;
}

.section {
    margin-bottom: 4rem;
    background-color: white;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    padding: 2rem;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

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

.section-header {
    margin-bottom: 1.5rem;
    border-bottom: 2px solid #3498db;
    padding-bottom: 0.5rem;
}

.section-header h2 {
    font-size: 1.8rem;
    color: #2c3e50;
    font-weight: 600;
}

.section-content {
    font-size: 1rem;
    color: #555;
}

.section-content p {
    margin-bottom: 1rem;
}

.section-content ul,
.section-content ol {
    margin-bottom: 1.5rem;
    padding-left: 2rem;
}

.section-content li {
    margin-bottom: 0.8rem;
}

.section-content h3 {
    font-size: 1.4rem;
    color: #2c3e50;
    margin: 1.5rem 0 1rem;
    font-weight: 600;
}

.section-content h4 {
    font-size: 1.2rem;
    color: #34495e;
    margin: 1rem 0 0.5rem;
    font-weight: 500;
}

/* 卡片样式 */
.card {
    background-color: #f8f9fa;
    border-radius: 8px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    border-left: 4px solid #3498db;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
    transform: translateX(5px);
    box-shadow: 0 3px 15px rgba(0, 0, 0, 0.1);
}

.card h3 {
    margin-top: 0;
}

/* 表格样式 */
.table-container {
    overflow-x: auto;
    margin: 1.5rem 0;
}

.responsive-table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 1.5rem;
}

.responsive-table th,
.responsive-table td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid #e0e0e0;
}

.responsive-table th {
    background-color: #f8f9fa;
    font-weight: 600;
    color: #2c3e50;
    position: sticky;
    top: 0;
}

.responsive-table tr:hover {
    background-color: #f8f9fa;
}

.responsive-table tr:last-child td {
    border-bottom: none;
}

/* 页脚样式 */
.footer {
    background-color: #2c3e50;
    color: white;
    padding: 2rem 0;
    text-align: center;
}

.footer-content {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .navbar-brand h1 {
        font-size: 1.2rem;
    }
    
    .navbar-toggle {
        display: flex;
    }
    
    .navbar-menu {
        position: fixed;
        left: -100%;
        top: 60px;
        flex-direction: column;
        background-color: #2c3e50;
        width: 100%;
        text-align: center;
        transition: 0.3s ease;
        box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
        padding: 1rem 0;
        gap: 1rem;
    }
    
    .navbar-menu.active {
        left: 0;
    }
    
    .hero {
        padding: 6rem 0 3rem;
        margin-top: 50px;
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    .report-info {
        flex-direction: column;
        gap: 1rem;
        align-items: center;
    }
    
    .section {
        padding: 1.5rem;
        margin-bottom: 2rem;
    }
    
    .section-header h2 {
        font-size: 1.5rem;
    }
    
    .section-content h3 {
        font-size: 1.3rem;
    }
    
    .section-content h4 {
        font-size: 1.1rem;
    }
    
    .responsive-table th,
    .responsive-table td {
        padding: 0.8rem 0.5rem;
        font-size: 0.9rem;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 1.6rem;
    }
    
    .section-header h2 {
        font-size: 1.3rem;
    }
    
    .section-content {
        font-size: 0.95rem;
    }
    
    .card {
        padding: 1rem;
    }
    
    .section-content ul,
    .section-content ol {
        padding-left: 1.5rem;
    }
}