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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: #0a0a0a;
    color: #fff;
    min-height: 100vh;
}

.header {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    padding: 15px 30px;
    border-bottom: 2px solid #0f3460;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header h1 {
    font-size: 20px;
    color: #e94560;
}

.status-bar {
    display: flex;
    gap: 20px;
    font-size: 13px;
}

.status-item {
    display: flex;
    align-items: center;
    gap: 8px;
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #28a745;
    animation: pulse 2s infinite;
}

.status-dot.warning { background: #ffc107; }
.status-dot.error { background: #dc3545; }

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

.container {
    padding: 20px;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(480px, 1fr));
    gap: 20px;
}

.video-card {
    background: #1a1a2e;
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid #0f3460;
}

.video-header {
    padding: 12px 15px;
    background: #16213e;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.video-title {
    font-size: 14px;
    font-weight: 600;
}

.video-status {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 12px;
}

.detection-badge {
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 11px;
    font-weight: 600;
}

.detection-badge.idle { background: #28a745; }
.detection-badge.detected { background: #e94560; animation: blink 1s infinite; }

@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

.video-container {
    position: relative;
    background: #000;
    aspect-ratio: 16/9;
}

.video-container video, .video-container canvas, .video-container img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.roi-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.video-info {
    padding: 12px 15px;
    background: #16213e;
    font-size: 12px;
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 8px;
}

.info-item {
    display: flex;
    justify-content: space-between;
    padding: 4px 0;
    border-bottom: 1px solid #0f3460;
}

.info-label { color: #888; }
.info-value { color: #fff; font-family: monospace; }
.info-value.detected { color: #e94560; font-weight: bold; }

.log-panel {
    position: fixed;
    right: 20px;
    bottom: 20px;
    width: 400px;
    max-height: 300px;
    background: rgba(26, 26, 46, 0.95);
    border: 1px solid #0f3460;
    border-radius: 8px;
    overflow: hidden;
}

.log-header {
    padding: 10px 15px;
    background: #16213e;
    font-size: 13px;
    font-weight: 600;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.log-content {
    padding: 10px;
    font-size: 11px;
    font-family: 'Consolas', monospace;
    max-height: 250px;
    overflow-y: auto;
}

.log-entry {
    padding: 3px 0;
    border-bottom: 1px solid #0f3460;
}

.log-time { color: #888; }
.log-event { color: #e94560; }
.log-info { color: #28a745; }

.empty-state {
    text-align: center;
    padding: 60px;
    color: #666;
}

.nav-links {
    display: flex;
    gap: 15px;
}

.nav-links a {
    color: #fff;
    text-decoration: none;
    padding: 8px 16px;
    border-radius: 6px;
    background: #0f3460;
    font-size: 13px;
    transition: all 0.3s;
}

.nav-links a:hover, .nav-links a.active {
    background: #e94560;
}

/* 处理切换按钮 */
.process-toggle {
    display: flex;
    gap: 5px;
    margin-left: 10px;
}

.toggle-btn {
    padding: 4px 12px;
    border: 1px solid #0f3460;
    background: #1a1a2e;
    color: #888;
    border-radius: 4px;
    cursor: pointer;
    font-size: 11px;
    transition: all 0.3s;
}

.toggle-btn:hover {
    background: #0f3460;
    color: #fff;
}

.toggle-btn.active {
    background: #e94560;
    border-color: #e94560;
    color: #fff;
}

/* 视频画面切换 */
.video-frame {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.video-frame.hidden {
    display: none;
}