:root {
    --bg-color: #0b0e14;
    --panel-bg: #161b22;
    --border-color: #30363d;
    --text-primary: #e6edf3;
    --text-secondary: #8b949e;
    --accent-color: #58a6ff;
    --online-color: #3fb950;
    --danger-color: #f85149;
    --ptz-btn-bg: #21262d;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    overflow: hidden;
    height: 100vh;
}

.app-container {
    display: flex;
    flex-direction: column;
    height: 100vh;
}

/* 顶部导航 */
.main-header {
    height: 60px;
    background-color: var(--panel-bg);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 20px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo h1 {
    font-size: 1.2rem;
    font-weight: 600;
}

.status-bar {
    display: flex;
    gap: 20px;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* 主内容区 */
.main-content {
    flex: 1;
    display: flex;
    padding: 15px;
    gap: 15px;
    overflow: hidden;
}

.left-panel {
    flex: 3;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.right-panel {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 15px;
    min-width: 320px;
}

/* 视频播放区 */
.video-section {
    flex: 1;
    background-color: #000;
    border-radius: 8px;
    position: relative;
    border: 1px solid var(--border-color);
    overflow: hidden;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.5);
}

.video-wrapper {
    width: 100%;
    height: 100%;
    position: relative;
}

#main-video {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.video-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    padding: 20px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    pointer-events: none;
    font-family: monospace;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.8);
}

.overlay-top {
    display: flex;
    justify-content: space-between;
}

.cam-id {
    color: #fff;
    font-size: 1.1rem;
    background: rgba(0,0,0,0.4);
    padding: 4px 8px;
}

.cam-time {
    color: #fff;
    background: rgba(0,0,0,0.4);
    padding: 4px 8px;
}

.rec-dot {
    color: var(--danger-color);
    font-weight: bold;
    animation: blink 1s infinite;
}

@keyframes blink {
    50% { opacity: 0; }
}

.video-loader {
    position: absolute;
    inset: 0;
    background: rgba(0,0,0,0.7);
    display: none;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 15px;
    z-index: 10;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid var(--border-color);
    border-top: 4px solid var(--accent-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    100% { transform: rotate(360deg); }
}

/* 控制面板 */
.control-section {
    height: 180px;
    background-color: var(--panel-bg);
    border-radius: 8px;
    border: 1px solid var(--border-color);
    display: flex;
    padding: 20px;
    gap: 40px;
}

.ptz-panel h3 {
    font-size: 0.9rem;
    margin-bottom: 15px;
    color: var(--text-secondary);
}

.ptz-controls {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 5px;
}

.ptz-mid {
    display: flex;
    align-items: center;
    gap: 5px;
}

.ptz-btn {
    width: 36px;
    height: 36px;
    background-color: var(--ptz-btn-bg);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    border-radius: 4px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
}

.ptz-btn:hover {
    background-color: var(--border-color);
    border-color: var(--accent-color);
}

.ptz-btn:active {
    background-color: var(--accent-color);
    color: #fff;
}

.ptz-center {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
}

.zoom-panel {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 10px;
}

.action-btn {
    padding: 8px 15px;
    background-color: var(--ptz-btn-bg);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.9rem;
    white-space: nowrap;
}

.action-btn:hover {
    background-color: var(--border-color);
}

/* 平面图 */
.floor-plan-section {
    flex: 1;
    background-color: var(--panel-bg);
    border-radius: 8px;
    border: 1px solid var(--border-color);
    padding: 15px;
    display: flex;
    flex-direction: column;
}

.floor-plan-section h3 {
    font-size: 0.9rem;
    margin-bottom: 10px;
    color: var(--text-secondary);
}

.floor-plan-container {
    flex: 1;
    background: #0d1117;
    border-radius: 4px;
    position: relative;
    overflow: hidden;
}

.floor-plan-svg {
    width: 100%;
    height: 100%;
}

.cam-marker {
    cursor: pointer;
    transition: all 0.3s;
}

.cam-marker circle {
    fill: #30363d;
    stroke: #8b949e;
    stroke-width: 1;
}

.cam-marker.active circle {
    fill: var(--accent-color);
    stroke: #fff;
    filter: drop-shadow(0 0 5px var(--accent-color));
}

.cam-marker text {
    fill: #8b949e;
    font-size: 10px;
    pointer-events: none;
}

.cam-marker.active text {
    fill: #fff;
    font-weight: bold;
}

/* 信息展示 */
.info-section {
    background-color: var(--panel-bg);
    border-radius: 8px;
    border: 1px solid var(--border-color);
    padding: 20px;
}

.info-section h3 {
    font-size: 1.1rem;
    margin-bottom: 10px;
}

.info-section p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.5;
    margin-bottom: 15px;
}

.status-tags {
    display: flex;
    gap: 8px;
}

.tag {
    font-size: 0.75rem;
    padding: 2px 8px;
    background: #21262d;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    color: var(--text-secondary);
}

.tag.online {
    color: var(--online-color);
    border-color: rgba(63, 185, 80, 0.3);
}

/* 底部镜头列表 */
.bottom-panel {
    height: 140px;
    background-color: var(--panel-bg);
    border-top: 1px solid var(--border-color);
    padding: 15px 20px;
}

.camera-list {
    display: flex;
    gap: 15px;
    overflow-x: auto;
    padding-bottom: 5px;
}

.camera-list::-webkit-scrollbar {
    height: 6px;
}

.camera-list::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 3px;
}

.cam-card {
    min-width: 160px;
    height: 100px;
    background: #0d1117;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    overflow: hidden;
    cursor: pointer;
    position: relative;
    transition: all 0.2s;
}

.cam-card:hover {
    border-color: var(--accent-color);
    transform: translateY(-2px);
}

.cam-card.active {
    border-color: var(--accent-color);
    box-shadow: 0 0 10px rgba(88, 166, 255, 0.3);
}

.cam-thumb {
    width: 100%;
    height: 70px;
    background: #21262d;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.cam-name {
    height: 30px;
    display: flex;
    align-items: center;
    padding: 0 10px;
    font-size: 0.85rem;
    background: var(--panel-bg);
}

.status-dot {
    position: absolute;
    top: 8px;
    left: 8px;
    width: 8px;
    height: 8px;
    background: var(--online-color);
    border-radius: 50%;
    box-shadow: 0 0 5px rgba(0,0,0,0.5);
}