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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: linear-gradient(135deg, #0f0f23 0%, #1a1a2e 50%, #16213e 100%);
    color: #ffffff;
    min-height: 100vh;
    overflow-x: hidden;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 头部导航 */
.header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.5rem 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    margin-bottom: 2rem;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.5rem;
    font-weight: 700;
    color: #00d4ff;
}

.logo i {
    font-size: 2rem;
    background: linear-gradient(135deg, #00d4ff, #0099cc);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.nav {
    display: flex;
    gap: 1rem;
}

.nav-btn {
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: rgba(255, 255, 255, 0.7);
    padding: 0.75rem 1.5rem;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 500;
}

.nav-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    color: #ffffff;
}

.nav-btn.active {
    background: linear-gradient(135deg, #00d4ff, #0099cc);
    border-color: transparent;
    color: #ffffff;
    box-shadow: 0 4px 15px rgba(0, 212, 255, 0.3);
}

.header-actions {
    display: flex;
    gap: 1rem;
}

/* 按钮样式 */
.btn-primary {
    background: linear-gradient(135deg, #00d4ff, #0099cc);
    border: none;
    color: white;
    padding: 0.75rem 1.5rem;
    border-radius: 12px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 212, 255, 0.4);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.2);
}

/* 主要内容区域 */
.main-content {
    margin-bottom: 2rem;
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
    animation: fadeIn 0.5s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

/* 统计卡片网格 */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 16px;
    padding: 1.5rem;
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
}

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    border-color: rgba(0, 212, 255, 0.3);
}

.stat-icon {
    font-size: 2rem;
    margin-bottom: 1rem;
    color: #00d4ff;
}

.stat-info h3 {
    font-size: 0.9rem;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 0.5rem;
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: #ffffff;
    display: block;
    margin-bottom: 0.25rem;
}

.stat-change {
    font-size: 0.875rem;
    font-weight: 500;
}

.stat-change.positive {
    color: #00ff88;
}

.stat-change.negative {
    color: #ff4757;
}

/* 图表网格 */
.charts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 1.5rem;
}

.chart-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 16px;
    padding: 1.5rem;
    backdrop-filter: blur(10px);
}

.chart-card.full-width {
    grid-column: 1 / -1;
}

.chart-card h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #ffffff;
}

.chart-container {
    height: 300px;
    position: relative;
}

/* 排名表格 */
.ranking-table {
    background: rgba(255, 255, 255, 0.02);
    border-radius: 12px;
    overflow: hidden;
}

.table-header {
    display: grid;
    grid-template-columns: 80px 1fr 120px 100px;
    padding: 1rem 1.5rem;
    background: rgba(255, 255, 255, 0.1);
    font-weight: 600;
    color: rgba(255, 255, 255, 0.8);
}

.table-body {
    max-height: 400px;
    overflow-y: auto;
}

.ranking-item {
    display: grid;
    grid-template-columns: 80px 1fr 120px 100px;
    padding: 1rem 1.5rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    transition: background 0.3s ease;
}

.ranking-item:hover {
    background: rgba(255, 255, 255, 0.05);
}

.ranking-item:last-child {
    border-bottom: none;
}

.rank {
    font-weight: 700;
    color: #00d4ff;
}

.rank-1 { color: #ffd700; }
.rank-2 { color: #c0c0c0; }
.rank-3 { color: #cd7f32; }

/* 面板头部 */
.panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.panel-header h2 {
    font-size: 1.5rem;
    font-weight: 700;
    color: #ffffff;
}

.filter-controls select {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 8px;
    outline: none;
}

.search-box {
    position: relative;
    display: flex;
    align-items: center;
}

.search-box input {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: white;
    padding: 0.5rem 1rem 0.5rem 2.5rem;
    border-radius: 8px;
    outline: none;
    width: 250px;
}

.search-box i {
    position: absolute;
    left: 1rem;
    color: rgba(255, 255, 255, 0.7);
}

/* 仓库网格 - 增强版 */
.repo-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 1.5rem;
}

.repo-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 16px;
    padding: 1.5rem;
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.repo-card:hover {
    transform: translateY(-6px) scale(1.02);
    box-shadow: 
        0 20px 40px rgba(0, 0, 0, 0.4),
        0 0 0 1px rgba(0, 212, 255, 0.4);
    border-color: rgba(0, 212, 255, 0.3);
}

.repo-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #00d4ff, #0099cc);
    opacity: 0.8;
}

.repo-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.repo-icon {
    width: 50px;
    height: 50px;
    border-radius: 12px;
    background: linear-gradient(135deg, #00d4ff, #0099cc);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: white;
}

.repo-info {
    flex: 1;
}

.repo-info h3 {
    font-size: 1.2rem;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 0.25rem;
}

.repo-rank {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.7);
}

.repo-score {
    font-size: 1.5rem;
    font-weight: 800;
    color: #00d4ff;
    background: rgba(0, 212, 255, 0.1);
    padding: 0.5rem 1rem;
    border-radius: 12px;
    border: 1px solid rgba(0, 212, 255, 0.2);
}

.repo-metrics {
    margin-bottom: 1.5rem;
}

.metric-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
}

.metric {
    text-align: center;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.metric i {
    font-size: 1.2rem;
    color: #00d4ff;
    margin-bottom: 0.5rem;
    display: block;
}

.metric-value {
    display: block;
    font-size: 1.4rem;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 0.25rem;
}

.metric-label {
    display: block;
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.7);
}

.repo-progress {
    margin-bottom: 1.5rem;
}

.progress-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.8);
}

.repo-tags {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    margin-bottom: 1.5rem;
}

.repo-actions {
    display: flex;
    gap: 0.75rem;
}

.repo-actions .btn-secondary {
    flex: 1;
    padding: 0.75rem;
    font-size: 0.9rem;
}

/* 仓库卡片动画 */
.repo-card:nth-child(odd) {
    border-left: 4px solid rgba(0, 212, 255, 0.5);
}

.repo-card:nth-child(even) {
    border-left: 4px solid rgba(0, 255, 136, 0.5);
}

.repo-card:nth-child(3n) {
    border-left: 4px solid rgba(255, 193, 7, 0.5);
}

/* 响应式调整 */
@media (max-width: 768px) {
    .repo-grid {
        grid-template-columns: 1fr;
    }
    
    .metric-row {
        grid-template-columns: 1fr;
        gap: 0.75rem;
    }
    
    .repo-header {
        flex-direction: column;
        text-align: center;
        gap: 0.75rem;
    }
    
    .repo-actions {
        flex-direction: column;
    }
}

/* 特殊效果 */
.repo-card:hover .repo-icon {
    transform: rotate(10deg) scale(1.1);
    transition: transform 0.3s ease;
}

.repo-card:hover .repo-score {
    background: rgba(0, 212, 255, 0.2);
    transform: scale(1.05);
    transition: all 0.3s ease;
}

/* 设置网格 */
.settings-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 1.5rem;
}

.setting-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 16px;
    padding: 1.5rem;
    backdrop-filter: blur(10px);
}

.setting-card h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #ffffff;
}

.setting-item {
    margin-bottom: 1rem;
}

.setting-item label {
    display: block;
    margin-bottom: 0.5rem;
    color: rgba(255, 255, 255, 0.8);
    font-weight: 500;
}

.setting-item input {
    width: 100%;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: white;
    padding: 0.75rem;
    border-radius: 8px;
    outline: none;
}

.setting-item input:focus {
    border-color: #00d4ff;
    box-shadow: 0 0 0 2px rgba(0, 212, 255, 0.2);
}

/* 网络图谱 */
.graph-container {
    height: 600px;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 16px;
    position: relative;
    overflow: hidden;
}

.graph-controls {
    display: flex;
    gap: 0.5rem;
}

/* 页脚 */
.footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    margin-top: 2rem;
}

.status-info {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: rgba(255, 255, 255, 0.7);
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #00ff88;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.footer-info {
    display: flex;
    gap: 1rem;
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.875rem;
}

/* 加载覆盖层 */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(15, 15, 35, 0.95);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    backdrop-filter: blur(10px);
}

.loading-overlay.active {
    display: flex;
}

.loading-spinner {
    text-align: center;
    color: #00d4ff;
}

.loading-spinner i {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.loading-spinner p {
    font-size: 1.1rem;
    font-weight: 500;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .header {
        flex-direction: column;
        gap: 1rem;
    }
    
    .nav {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .charts-grid {
        grid-template-columns: 1fr;
    }
    
    .panel-header {
        flex-direction: column;
        gap: 1rem;
        align-items: stretch;
    }
    
    .footer {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
}

/* 滚动条样式 */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.3);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.5);
}

/* 动画效果 */
@keyframes glow {
    0%, 100% { box-shadow: 0 0 5px rgba(0, 212, 255, 0.3); }
    50% { box-shadow: 0 0 20px rgba(0, 212, 255, 0.6); }
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
}

@keyframes pulse-glow {
    0%, 100% { 
        box-shadow: 0 0 5px rgba(0, 212, 255, 0.3),
                   0 0 10px rgba(0, 212, 255, 0.2);
    }
    50% { 
        box-shadow: 0 0 20px rgba(0, 212, 255, 0.6),
                   0 0 30px rgba(0, 212, 255, 0.4);
    }
}

@keyframes slide-in {
    from { 
        opacity: 0;
        transform: translateX(-30px);
    }
    to { 
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes fade-in-up {
    from { 
        opacity: 0;
        transform: translateY(30px);
    }
    to { 
        opacity: 1;
        transform: translateY(0);
    }
}

.glow-effect {
    animation: glow 2s ease-in-out infinite;
}

.float-effect {
    animation: float 3s ease-in-out infinite;
}

.pulse-glow {
    animation: pulse-glow 2s ease-in-out infinite;
}

.slide-in {
    animation: slide-in 0.6s ease-out;
}

.fade-in-up {
    animation: fade-in-up 0.8s ease-out;
}

/* 增强的卡片悬停效果 */
.stat-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 
        0 20px 40px rgba(0, 0, 0, 0.4),
        0 0 0 1px rgba(0, 212, 255, 0.4);
}

.chart-card:hover {
    transform: translateY(-4px);
    box-shadow: 
        0 15px 35px rgba(0, 0, 0, 0.3),
        0 0 0 1px rgba(0, 212, 255, 0.3);
}

.repo-card:hover {
    transform: translateY(-6px) rotate(1deg);
    box-shadow: 
        0 18px 38px rgba(0, 0, 0, 0.35),
        0 0 0 1px rgba(0, 255, 136, 0.3);
}

/* 增强的按钮效果 */
.btn-primary:hover {
    transform: translateY(-3px) scale(1.05);
    box-shadow: 
        0 12px 25px rgba(0, 212, 255, 0.5),
        0 0 15px rgba(0, 212, 255, 0.3);
}

.nav-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 15px rgba(255, 255, 255, 0.2);
}

/* 进度条样式 */
.progress-bar {
    width: 100%;
    height: 8px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
    overflow: hidden;
    margin: 0.5rem 0;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, #00d4ff, #0099cc);
    border-radius: 4px;
    transition: width 0.3s ease;
    position: relative;
}

.progress-fill::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, 
        transparent 0%, 
        rgba(255, 255, 255, 0.3) 50%, 
        transparent 100%);
    animation: shimmer 2s infinite;
}

@keyframes shimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

/* 标签样式 */
.tag {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    margin: 0.25rem;
}

.tag-primary {
    background: rgba(0, 212, 255, 0.2);
    color: #00d4ff;
    border: 1px solid rgba(0, 212, 255, 0.3);
}

.tag-success {
    background: rgba(0, 255, 136, 0.2);
    color: #00ff88;
    border: 1px solid rgba(0, 255, 136, 0.3);
}

.tag-warning {
    background: rgba(255, 193, 7, 0.2);
    color: #ffc107;
    border: 1px solid rgba(255, 193, 7, 0.3);
}

/* 时间线样式 */
.timeline {
    position: relative;
    padding-left: 2rem;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 0.75rem;
    top: 0;
    bottom: 0;
    width: 2px;
    background: rgba(255, 255, 255, 0.2);
}

.timeline-item {
    position: relative;
    margin-bottom: 1.5rem;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -2rem;
    top: 0.5rem;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: #00d4ff;
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.timeline-content {
    background: rgba(255, 255, 255, 0.05);
    padding: 1rem;
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

/* 网格布局增强 */
.grid-responsive {
    display: grid;
    gap: 1.5rem;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

/* 响应式设计增强 */
@media (max-width: 1024px) {
    .charts-grid {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 640px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .header {
        padding: 1rem 0;
    }
    
    .logo {
        font-size: 1.25rem;
    }
    
    .nav {
        flex-wrap: wrap;
        gap: 0.5rem;
    }
    
    .nav-btn {
        padding: 0.5rem 1rem;
        font-size: 0.875rem;
    }
}

/* 暗色模式优化 */
@media (prefers-color-scheme: dark) {
    body {
        background: linear-gradient(135deg, #0a0a1a 0%, #141428 50%, #1e1e3e 100%);
    }
}

/* 开发者分析样式 */
.developer-analysis-header {
    margin-bottom: 2rem;
    padding: 1.5rem;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 16px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.analysis-summary {
    display: flex;
    gap: 2rem;
    margin-top: 1rem;
}

.summary-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: rgba(255, 255, 255, 0.8);
    font-weight: 500;
}

.summary-item i {
    color: #00d4ff;
}

.developers-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.developer-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 16px;
    padding: 1.5rem;
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
}

.developer-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    border-color: rgba(0, 212, 255, 0.3);
}

.developer-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
}

.developer-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: linear-gradient(135deg, #00d4ff, #0099cc);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: white;
}

.developer-info h4 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
    color: #ffffff;
}

.developer-rank {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.7);
}

.rank-badge {
    margin-left: auto;
    padding: 0.25rem 0.75rem;
    background: rgba(0, 212, 255, 0.2);
    color: #00d4ff;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
}

.developer-stats {
    margin-bottom: 1rem;
}

.stat-row {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
}

.stat-label {
    min-width: 80px;
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.7);
}

.stat-value {
    min-width: 40px;
    font-weight: 600;
    color: #ffffff;
}

.developer-metrics {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-bottom: 1rem;
}

.metric {
    text-align: center;
    padding: 0.75rem;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 12px;
}

.metric-label {
    display: block;
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 0.25rem;
}

.metric-value {
    display: block;
    font-size: 1.2rem;
    font-weight: 700;
    color: #ffffff;
}

.metric-value.positive {
    color: #00ff88;
}

.metric-value.negative {
    color: #ff4757;
}

.developer-tags {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.developer-charts {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin-top: 2rem;
}

.chart-section {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 16px;
    padding: 1.5rem;
}

.chart-section h4 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #ffffff;
}

.no-results {
    text-align: center;
    padding: 3rem;
    color: rgba(255, 255, 255, 0.5);
}

.no-results i {
    font-size: 3rem;
    margin-bottom: 1rem;
    color: rgba(255, 255, 255, 0.3);
}

.no-results h3 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
    color: rgba(255, 255, 255, 0.7);
}

/* 打印样式优化 */
@media print {
    .header-actions,
    .nav,
    .footer {
        display: none;
    }
    
    body {
        background: white;
        color: black;
    }
    
    .stat-card,
    .chart-card {
        border: 1px solid #ddd;
        background: white;
    }
}