* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f5f5f5;
}

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

.header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 30px;
    border-radius: 10px;
    margin-bottom: 30px;
    text-align: center;
}

.header h1 {
    font-size: 2.5em;
    margin-bottom: 10px;
}

.header p {
    font-size: 1.2em;
    opacity: 0.9;
}

.controls {
    background: white;
    padding: 20px;
    border-radius: 10px;
    margin-bottom: 20px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.control-group {
    display: flex;
    gap: 20px;
    align-items: center;
    flex-wrap: wrap;
}

.control-group label {
    font-weight: bold;
    color: #555;
}

.control-group input {
    padding: 8px 12px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 14px;
}

.btn {
    background: #667eea;
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 5px;
    cursor: pointer;
    font-size: 14px;
    transition: background 0.3s;
}

.btn:hover {
    background: #5a6fd8;
}

.btn:disabled {
    background: #ccc;
    cursor: not-allowed;
}

.report-container {
    background: white;
    border-radius: 10px;
    padding: 30px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    margin-bottom: 20px;
}

.report-content {
    white-space: pre-wrap;
    font-family: 'Courier New', monospace;
    line-height: 1.8;
    font-size: 14px;
}

.loading {
    text-align: center;
    padding: 40px;
    color: #666;
}

.error {
    background: #ffe6e6;
    color: #d63031;
    padding: 15px;
    border-radius: 5px;
    margin: 10px 0;
    border-left: 4px solid #d63031;
}

.statistics {
    background: #f8f9fa;
    padding: 20px;
    border-radius: 8px;
    margin-top: 20px;
}

.stat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
    margin-top: 15px;
}

.stat-item {
    background: white;
    padding: 15px;
    border-radius: 8px;
    text-align: center;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.stat-value {
    font-size: 1.8em;
    font-weight: bold;
    color: #667eea;
}

.stat-label {
    font-size: 0.9em;
    color: #666;
    margin-top: 5px;
}

.nav {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
}

.nav-btn {
    padding: 8px 16px;
    background: #f8f9fa;
    border: 1px solid #ddd;
    border-radius: 5px;
    text-decoration: none;
    color: #333;
    transition: all 0.3s;
}

.nav-btn:hover {
    background: #667eea;
    color: white;
    border-color: #667eea;
}

.export-btn {
    background: #28a745;
    color: white;
    border: none;
    padding: 8px 16px;
    border-radius: 5px;
    cursor: pointer;
    font-size: 14px;
    margin-left: auto;
}

.export-btn:hover {
    background: #218838;
}

/* 预览控制样式 */
.preview-controls {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
    border-bottom: 1px solid #eee;
    padding-bottom: 15px;
}

.preview-btn {
    background: #f8f9fa;
    color: #666;
    border: 1px solid #ddd;
    padding: 8px 16px;
    border-radius: 5px;
    cursor: pointer;
    font-size: 14px;
    transition: all 0.3s;
}

.preview-btn:hover {
    background: #e9ecef;
    border-color: #adb5bd;
}

.preview-btn.active {
    background: #667eea;
    color: white;
    border-color: #667eea;
}

/* Markdown源代码显示样式 */
.markdown-source {
    background: #f8f9fa;
    border: 1px solid #e9ecef;
    border-radius: 5px;
    padding: 20px;
    font-family: 'Courier New', monospace;
    font-size: 13px;
    line-height: 1.5;
    white-space: pre-wrap;
    word-wrap: break-word;
    max-height: 600px;
    overflow-y: auto;
}

.markdown-source pre {
    margin: 0;
    background: none;
    border: none;
    padding: 0;
}

.markdown-source code {
    background: none;
    border: none;
    padding: 0;
    color: #333;
}

/* 增强的报告内容样式 */
.report-content {
    white-space: pre-wrap;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.8;
    font-size: 14px;
    background: white;
    padding: 20px;
    border-radius: 5px;
    border: 1px solid #e9ecef;
}

/* Markdown渲染样式 */
.report-content h1,
.report-content h2,
.report-content h3,
.report-content h4,
.report-content h5,
.report-content h6 {
    margin: 20px 0 10px 0;
    color: #333;
    font-weight: 600;
}

.report-content h1 {
    font-size: 1.8em;
    border-bottom: 2px solid #667eea;
    padding-bottom: 10px;
}

.report-content h2 {
    font-size: 1.5em;
    border-bottom: 1px solid #ddd;
    padding-bottom: 8px;
}

.report-content h3 {
    font-size: 1.3em;
}

.report-content p {
    margin: 10px 0;
}

.report-content ul,
.report-content ol {
    margin: 10px 0 10px 20px;
}

.report-content li {
    margin: 5px 0;
}

.report-content blockquote {
    border-left: 4px solid #667eea;
    background: #f8f9fa;
    padding: 10px 15px;
    margin: 15px 0;
    font-style: italic;
}

.report-content code {
    background: #f1f3f4;
    padding: 2px 6px;
    border-radius: 3px;
    font-family: 'Courier New', monospace;
    font-size: 0.9em;
}

.report-content pre {
    background: #f8f9fa;
    border: 1px solid #e9ecef;
    border-radius: 5px;
    padding: 15px;
    overflow-x: auto;
    margin: 15px 0;
}

.report-content pre code {
    background: none;
    padding: 0;
}

.report-content table {
    border-collapse: collapse;
    width: 100%;
    margin: 15px 0;
}

.report-content th,
.report-content td {
    border: 1px solid #ddd;
    padding: 8px 12px;
    text-align: left;
}

.report-content th {
    background: #f8f9fa;
    font-weight: 600;
}

.report-content tr:nth-child(even) {
    background: #f8f9fa;
}

/* 水平分隔线样式 */
.report-content hr {
    border: none;
    border-top: 2px solid #667eea;
    margin: 30px 0;
    height: 0;
}