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

body {
    font-family: 'Microsoft JhengHei', 'Segoe UI', Arial, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    padding: 20px;
    color: #333;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    background: white;
    border-radius: 15px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.2);
    overflow: hidden;
}

header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
}

header h1 {
    font-size: 2em;
    margin: 0;
}

.header-actions {
    display: flex;
    gap: 10px;
}

.btn {
    padding: 10px 20px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 14px;
    transition: all 0.3s;
    font-weight: bold;
}

.btn-primary {
    background: #4CAF50;
    color: white;
}

.btn-primary:hover {
    background: #45a049;
    transform: translateY(-2px);
}

.btn-success {
    background: #2196F3;
    color: white;
}

.btn-success:hover {
    background: #0b7dda;
    transform: translateY(-2px);
}

.btn-secondary {
    background: #757575;
    color: white;
}

.btn-secondary:hover {
    background: #616161;
}

section {
    padding: 30px;
    border-bottom: 1px solid #eee;
}

section:last-child {
    border-bottom: none;
}

h2 {
    color: #667eea;
    margin-bottom: 20px;
    font-size: 1.5em;
}

/* 統計面板 */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.stat-card {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 25px;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    transition: transform 0.3s;
}

.stat-card:hover {
    transform: translateY(-5px);
}

.stat-label {
    font-size: 14px;
    opacity: 0.9;
    margin-bottom: 10px;
}

.stat-value {
    font-size: 2.5em;
    font-weight: bold;
}

.charts-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 20px;
}

.chart-box {
    background: #f8f9fa;
    padding: 20px;
    border-radius: 10px;
}

.chart-box h3 {
    margin-bottom: 15px;
    color: #667eea;
}

/* 查詢表單 */
.search-form {
    background: #f8f9fa;
    padding: 20px;
    border-radius: 10px;
}

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

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group label {
    margin-bottom: 5px;
    font-weight: bold;
    color: #555;
}

.form-group input,
.form-group select {
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 14px;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: #667eea;
}

/* 文章列表 */
.articles-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.pagination-info {
    color: #666;
    font-size: 14px;
}

.articles-list {
    display: grid;
    gap: 15px;
}

.article-card {
    background: #f8f9fa;
    padding: 20px;
    border-radius: 10px;
    border-left: 4px solid #667eea;
    transition: all 0.3s;
    cursor: pointer;
}

.article-card:hover {
    background: #e9ecef;
    transform: translateX(5px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.article-title {
    font-size: 1.2em;
    font-weight: bold;
    color: #667eea;
    margin-bottom: 10px;
    text-decoration: none;
}

.article-title:hover {
    text-decoration: underline;
}

.article-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    font-size: 14px;
    color: #666;
    margin-bottom: 10px;
}

.article-meta span {
    display: flex;
    align-items: center;
    gap: 5px;
}

.article-summary {
    color: #555;
    line-height: 1.6;
    margin-top: 10px;
}

.article-tags {
    margin-top: 10px;
}

.tag {
    display: inline-block;
    background: #667eea;
    color: white;
    padding: 3px 10px;
    border-radius: 15px;
    font-size: 12px;
    margin-right: 5px;
}

.paywall-badge {
    background: #ff9800;
    color: white;
    padding: 3px 10px;
    border-radius: 15px;
    font-size: 12px;
    font-weight: bold;
}

/* 分頁 */
.pagination {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-top: 20px;
}

.pagination button {
    padding: 8px 15px;
    border: 1px solid #ddd;
    background: white;
    border-radius: 5px;
    cursor: pointer;
    transition: all 0.3s;
}

.pagination button:hover:not(:disabled) {
    background: #667eea;
    color: white;
    border-color: #667eea;
}

.pagination button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

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

/* 載入動畫 */
.loading {
    text-align: center;
    padding: 40px;
    font-size: 18px;
    color: #667eea;
    display: none;
}

.loading.show {
    display: block;
}

/* 模態框 */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.5);
    overflow: auto;
}

.modal-content {
    background-color: white;
    margin: 5% auto;
    padding: 30px;
    border-radius: 10px;
    width: 90%;
    max-width: 800px;
    max-height: 80vh;
    overflow-y: auto;
}

.close {
    color: #aaa;
    float: right;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
}

.close:hover {
    color: #000;
}

#articleDetail {
    margin-top: 20px;
}

.article-detail-title {
    font-size: 1.8em;
    color: #667eea;
    margin-bottom: 15px;
}

.article-detail-content {
    line-height: 1.8;
    color: #555;
    margin-top: 20px;
}

/* 頁籤樣式 */
.tabs {
    display: flex;
    background: #f8f9fa;
    border-bottom: 2px solid #667eea;
    padding: 0 30px;
}

.tab-btn {
    padding: 15px 30px;
    background: transparent;
    border: none;
    border-bottom: 3px solid transparent;
    cursor: pointer;
    font-size: 16px;
    font-weight: bold;
    color: #666;
    transition: all 0.3s;
}

.tab-btn:hover {
    color: #667eea;
    background: rgba(102, 126, 234, 0.1);
}

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

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

/* 爬蟲設定頁面 */
.config-section {
    padding: 30px;
}

.config-group {
    background: #f8f9fa;
    padding: 20px;
    border-radius: 10px;
    margin-bottom: 20px;
}

.config-group h3 {
    color: #667eea;
    margin-bottom: 15px;
    font-size: 1.2em;
}

.config-group small {
    display: block;
    color: #666;
    font-size: 12px;
    margin-top: 5px;
}

.url-list-container {
    margin-top: 15px;
}

.url-list {
    margin-bottom: 10px;
}

.url-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px;
    background: white;
    border-radius: 5px;
    margin-bottom: 10px;
}

.url-item input {
    flex: 1;
    padding: 8px;
    border: 1px solid #ddd;
    border-radius: 5px;
}

.url-item button {
    padding: 8px 15px;
    background: #dc3545;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
}

.url-item button:hover {
    background: #c82333;
}

.config-actions {
    display: flex;
    gap: 10px;
    margin-top: 20px;
    flex-wrap: wrap;
}

.config-status {
    margin-top: 20px;
    padding: 15px;
    border-radius: 5px;
    display: none;
}

.config-status.success {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
    display: block;
}

.config-status.error {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
    display: block;
}

.config-status.info {
    background: #d1ecf1;
    color: #0c5460;
    border: 1px solid #bee5eb;
    display: block;
}

/* 響應式設計 */
@media (max-width: 768px) {
    header {
        flex-direction: column;
        text-align: center;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .charts-container {
        grid-template-columns: 1fr;
    }

    .tabs {
        flex-direction: column;
    }

    .tab-btn {
        width: 100%;
        text-align: left;
    }
}