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

body {
    font-family: "Noto Serif SC", "Computer Modern", "Times New Roman", "SimSun", serif;
    background: #f8f9fa; /* 更柔和的浅灰色背景 */
    color: #333333; /* 深灰色文字，提高可读性 */
    line-height: 1.7; /* 增加行高，提高可读性 */
    padding: 0;
    margin: 0;
    font-size: 16px; /* 基础字体大小 */
}

.paper {
    background: white;
    max-width: 210mm;
    margin: 2rem auto;
    padding: 2cm;
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
    position: relative;
}

/* 标题样式 */
h1 {
    color: #1a5276; /* 深蓝色标题 */
    font-size: 2.2rem;
    text-align: center;
    margin-bottom: 2rem;
    font-weight: bold;
    line-height: 1.3;
}

h2 {
    color: #1a5276; /* 深蓝色标题 */
    font-size: 1.6rem;
    margin-top: 2.5rem;
    margin-bottom: 1.5rem;
    padding-bottom: 0.5rem;
    border-bottom: 3px solid;
    border-image: linear-gradient(to right, #1a5276, #3498db) 1;
}

h3 {
    color: #1a5276;
    font-size: 1.3rem;
    margin-top: 1.5rem;
    margin-bottom: 1rem;
}

h4 {
    color: #1a5276;
    font-size: 1.15rem;
    margin-top: 1.2rem;
    margin-bottom: 0.8rem;
}

/* 段落样式 */
p {
    margin-bottom: 1rem;
    text-align: justify;
    text-indent: 2em;
    font-size: 1rem;
}

/* 目录样式 */
.toc {
    background: #f4f9fd; /* 浅蓝色背景 */
    border: 1px solid #d4e6f1;
    border-radius: 4px;
    padding: 1.5rem;
    margin: 2rem 0;
}

.toc-title {
    text-align: center;
    font-weight: bold;
    margin-bottom: 1rem;
    color: #1a5276;
}

.toc a {
    color: #2c3e50; /* 深灰色文字 */
    text-decoration: none;
    display: block;
    padding: 0.3rem 0;
    transition: color 0.3s ease;
}

.toc a:hover {
    color: #3498db;
}

.toc .toc-h2 {
    font-weight: bold;
    font-size: 1rem;
}

.toc .toc-h3 {
    padding-left: 2rem;
    font-size: 0.95rem;
}

/* 统计卡片样式 */
.stats-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
    margin: 2rem 0;
}

.stat-card {
    background: linear-gradient(135deg, #f4f9fd 0%, #eaf4fd 100%);
    border: 1px solid #d4e6f1;
    border-radius: 6px;
    padding: 1.5rem;
    text-align: center;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.stat-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.stat-value {
    font-size: 2.2rem;
    font-weight: bold;
    color: #2874a6; /* 深蓝色数字 */
    margin: 0.5rem 0;
}

.stat-label {
    color: #1a5276;
    font-size: 1rem;
}

/* 表格样式 */
table {
    width: 100%;
    border-collapse: collapse;
    margin: 1.5rem 0;
    font-size: 1rem;
}

th {
    background: linear-gradient(135deg, #d4e6f1 0%, #aed6f1 100%);
    color: #1a5276;
    font-weight: bold;
    text-align: center;
    padding: 0.8rem;
    border: 1px solid #b3d1e9;
}

td {
    padding: 0.8rem;
    border: 1px solid #d4e6f1;
    text-align: center;
}

tr:nth-child(even) {
    background-color: #f8fbfd;
}

/* 下载链接样式 */
.download-link {
    display: inline-block;
    padding: 12px 30px;
    background: linear-gradient(135deg, #3498db, #2980b9);
    color: white;
    text-decoration: none;
    border-radius: 6px;
    font-size: 16px;
    font-weight: bold;
    transition: all 0.3s ease;
    box-shadow: 0 4px 6px rgba(52, 152, 219, 0.3);
}
.download-link:hover {
    background: linear-gradient(135deg, #2980b9, #1f6da6);
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(52, 152, 219, 0.4);
}
.download-link:active {
    transform: translateY(0);
}

/* 列表样式 */
ul, ol {
    margin: 1rem 0 1rem 2rem;
}

li {
    margin-bottom: 0.5rem;
    text-align: justify;
    font-size: 1rem;
}

/* 标题页样式 */
.title-page {
    text-align: center;
    margin-bottom: 3rem;
}

.date {
    margin: 1rem 0;
    color: #555;
    font-style: italic;
}

/* 摘要样式 */
.abstract {
    background-color: #f8fbfd;
    border: 1px solid #d4e6f1;
    border-radius: 4px;
    padding: 1.5rem;
    margin: 2rem 0;
}

.abstract-title {
    text-align: center;
    font-weight: bold;
    margin-bottom: 1rem;
    color: #1a5276;
}

/* 学校分析部分的特殊样式 */
.school-highlights {
    background: #fff9e6;
    border-left: 4px solid #f4d03f;
    padding: 1.5rem;
    margin: 1.5rem 0;
    border-radius: 0 4px 4px 0;
}

.school-top {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 1rem;
    margin: 1.5rem 0;
}

.school-card {
    flex: 1;
    min-width: 200px;
    background: white;
    border: 1px solid #e0e0e0;
    border-radius: 6px;
    padding: 1.5rem;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}

/* 建议框样式 */
.suggestion-box {
    background: #eaf4f8;
    border-left: 4px solid #2874a6; /* 调整为更深的蓝色 */
    padding: 1.5rem;
    margin: 1.5rem 0;
    border-radius: 0 4px 4px 0;
}

/* 挑战框样式 */
.challenge-box {
    background: #fef5e7;
    border-left: 4px solid #e67e22; /* 调整为更深的橙色 */
    padding: 1.5rem;
    margin: 1.5rem 0;
    border-radius: 0 4px 4px 0;
}

/* 亮点框样式 */
.highlight-box {
    background: #eafaf1;
    border-left: 4px solid #27ae60; /* 调整为更深的绿色 */
    padding: 1.5rem;
    margin: 1.5rem 0;
    border-radius: 0 4px 4px 0;
}

/* 致领导/学校/家长的样式 */
.message-section {
    background: #f4f9fd;
    border: 1px solid #d4e6f1;
    border-radius: 4px;
    padding: 1.5rem;
    margin: 1rem 0;
}

/* 附录样式 */
.appendix {
    background: #f8f9fa;
    border: 1px solid #e9ecef;
    border-radius: 4px;
    padding: 1.5rem;
    margin: 2rem 0;
}

/* 致谢样式 */
.acknowledgments {
    background: #fdf2e9;
    border: 1px solid #f5deb3;
    border-radius: 4px;
    padding: 1.5rem;
    margin: 2rem 0;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .paper {
        padding: 1.5cm;
        margin: 1rem;
    }
    
    h1 {
        font-size: 1.9rem;
    }
    
    h2 {
        font-size: 1.4rem;
    }
    
    .stats-container {
        grid-template-columns: 1fr;
    }
    
    table {
        font-size: 0.9rem;
    }
    
    th, td {
        padding: 0.6rem 0.4rem;
    }
}

@media (max-width: 480px) {
    .paper {
        padding: 1cm;
        margin: 0.5rem;
    }
    
    h1 {
        font-size: 1.7rem;
    }
}