:root {
    /* 深色主题 */
    --primary-color: #60a5fa;
    --primary-hover: #3b82f6;
    --secondary-color: #818cf8;
    --success-color: #34d399;
    --error-color: #f87171;
    --warning-color: #fbbf24;
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-tertiary: #334155;
    --bg-card: #1e293b;
    --text-primary: #f1f5f9;
    --text-secondary: #cbd5e1;
    --text-muted: #94a3b8;
    --border-color: #334155;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.4);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.5);
    --code-bg: #1e293b;
    --code-text: #f8fafc;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
}

/* 页面管理 */
.page {
    display: none;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.page.active {
    display: block;
    opacity: 1;
}

/* 容器 */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 2rem;
}

/* 头部 */
.header {
    text-align: center;
    margin-bottom: 3rem;
    padding: 2rem 0;
}

.header h1 {
    font-size: 3rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.5rem;
}

.subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
}

/* 搜索框 */
.search-box {
    position: relative;
    max-width: 600px;
    margin: 0 auto 2rem;
}

.search-box input {
    width: 100%;
    padding: 1rem 1rem 1rem 3rem;
    font-size: 1rem;
    background: var(--bg-secondary);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    color: var(--text-primary);
    transition: all 0.3s ease;
}

.search-box input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.search-icon {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    width: 20px;
    height: 20px;
    color: var(--text-muted);
}

/* 比赛网格 */
.competition-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.competition-card {
    background: var(--bg-card);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.competition-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--primary-color);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.competition-card:hover {
    border-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.competition-card:hover::before {
    transform: scaleX(1);
}

.competition-card h3 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.competition-card .card-meta {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
    font-size: 0.875rem;
    color: var(--text-muted);
}

.card-meta span {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

/* 查看器头部 */
.viewer-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem 2rem;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
}

.back-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 0.875rem;
    cursor: pointer;
    transition: all 0.2s ease;
}

.back-btn:hover {
    background: var(--bg-tertiary);
    border-color: var(--primary-color);
}

.back-btn svg {
    width: 18px;
    height: 18px;
}

#competition-title {
    flex: 1;
    font-size: 1.25rem;
    font-weight: 600;
}

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

.control-btn {
    padding: 0.5rem;
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
}

.control-btn.play-btn {
    background: rgba(94, 234, 212, 0.1);
    border-color: rgba(94, 234, 212, 0.3);
}

.control-btn.play-btn:hover {
    background: rgba(94, 234, 212, 0.2);
    border-color: rgba(94, 234, 212, 0.5);
}

.control-btn.play-btn.playing {
    background: rgba(94, 234, 212, 0.25);
    border-color: rgba(94, 234, 212, 0.6);
    box-shadow: 0 0 12px rgba(94, 234, 212, 0.4);
}

.control-btn.highlight-view-btn {
    background: rgba(167, 139, 250, 0.1);
    border-color: rgba(167, 139, 250, 0.3);
}

.control-btn.highlight-view-btn:hover {
    background: rgba(167, 139, 250, 0.2);
    border-color: rgba(167, 139, 250, 0.5);
}

.control-btn.highlight-view-btn.active {
    background: rgba(167, 139, 250, 0.25);
    border-color: rgba(167, 139, 250, 0.6);
    box-shadow: 0 0 12px rgba(167, 139, 250, 0.4);
}

.control-btn svg {
    width: 20px;
    height: 20px;
}

/* 查看器内容 */
.viewer-content {
    display: flex;
    height: calc(100vh - 70px);
}

.tree-container {
    flex: 1;
    position: relative;
    overflow: hidden;
    background: var(--bg-primary);
}

/* 播放面板 */
.playback-panel {
    width: 750px;
    min-width: 600px;
    max-width: 850px;
    background: linear-gradient(185deg, rgba(15, 23, 42, 0.98), rgba(30, 41, 59, 0.95));
    border-left: 2px solid rgba(94, 234, 212, 0.4);
    backdrop-filter: blur(18px);
    display: flex;
    flex-direction: column;
    box-shadow: -24px 0 48px rgba(2, 6, 23, 0.55), inset 2px 0 0 rgba(94, 234, 212, 0.2);
    padding: 1.5rem;
    position: relative;
    flex-shrink: 0;
    overflow: hidden;
    order: 1;
}

.playback-panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid rgba(94, 234, 212, 0.2);
    flex-wrap: wrap;
    gap: 1rem;
}

.playback-panel-header h3 {
    font-size: 1.125rem;
    font-weight: 700;
    color: rgba(94, 234, 212, 0.95);
    margin: 0;
}

.playback-controls-group {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.playback-progress {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.speed-control {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.speed-control label {
    font-size: 0.875rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.speed-select {
    background: rgba(30, 41, 59, 0.8);
    border: 1px solid rgba(94, 234, 212, 0.3);
    border-radius: 6px;
    padding: 0.5rem 0.75rem;
    color: var(--text-primary);
    font-size: 0.875rem;
    font-family: 'JetBrains Mono', monospace;
    cursor: pointer;
    transition: all 0.2s ease;
    outline: none;
}

.speed-select:hover {
    border-color: rgba(94, 234, 212, 0.5);
    background: rgba(30, 41, 59, 0.95);
}

.speed-select:focus {
    border-color: rgba(94, 234, 212, 0.7);
    box-shadow: 0 0 0 3px rgba(94, 234, 212, 0.1);
}

.speed-select option {
    background: var(--bg-secondary);
    color: var(--text-primary);
}

#current-node-indicator {
    color: rgba(94, 234, 212, 0.95);
    font-weight: 600;
}

.progress-separator {
    color: var(--text-muted);
}

.playback-panel-content {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
}

.playback-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    color: var(--text-muted);
    text-align: center;
}

.playback-comparison {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.comparison-header {
    margin-bottom: 0.5rem;
}

.node-info {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.node-badge {
    display: inline-flex;
    align-items: center;
    padding: 0.5rem 1rem;
    background: rgba(94, 234, 212, 0.15);
    border: 1px solid rgba(94, 234, 212, 0.3);
    border-radius: 8px;
    font-weight: 700;
    font-size: 0.9375rem;
    color: rgba(94, 234, 212, 0.95);
    font-family: 'JetBrains Mono', monospace;
}

.from-node {
    font-size: 0.875rem;
    color: var(--text-muted);
}

.metric-comparison {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.25rem;
    background: linear-gradient(160deg, rgba(30, 41, 59, 0.95), rgba(15, 23, 42, 0.98));
    border: 1px solid rgba(94, 234, 212, 0.3);
    border-radius: 12px;
    flex-wrap: wrap;
}

.metric-item {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    flex: 1;
    min-width: 120px;
}

.metric-label {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-muted);
    font-weight: 600;
}

.metric-value {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--text-primary);
    font-family: 'JetBrains Mono', monospace;
}

.metric-value.improved {
    color: var(--success-color);
}

.metric-value.degraded {
    color: var(--error-color);
}

.metric-arrow {
    font-size: 1.5rem;
    color: rgba(94, 234, 212, 0.6);
    flex-shrink: 0;
}

.metric-change {
    padding: 0.5rem 1rem;
    border-radius: 8px;
    font-weight: 700;
    font-size: 1rem;
    font-family: 'JetBrains Mono', monospace;
    flex-shrink: 0;
}

.metric-change.improved {
    background: rgba(52, 211, 153, 0.15);
    color: var(--success-color);
    border: 1px solid rgba(52, 211, 153, 0.3);
}

.metric-change.degraded {
    background: rgba(248, 113, 113, 0.15);
    color: var(--error-color);
    border: 1px solid rgba(248, 113, 113, 0.3);
}

.changes-list {
    margin-top: 1rem;
}

.changes-list h4 {
    font-size: 1rem;
    font-weight: 700;
    color: rgba(94, 234, 212, 0.95);
    margin-bottom: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.changes-list ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.change-item {
    display: flex;
    gap: 0.75rem;
    align-items: flex-start;
    padding: 1rem;
    background: linear-gradient(160deg, rgba(30, 41, 59, 0.95), rgba(15, 23, 42, 0.98));
    border: 1px solid rgba(94, 234, 212, 0.3);
    border-radius: 10px;
    opacity: 0;
    transform: translateY(10px);
    transition: all 0.4s ease;
}

.change-item.animate-in-delay {
    animation: changeItemIn 0.5s ease forwards;
}

@keyframes changeItemIn {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.change-badge {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    background: rgba(94, 234, 212, 0.2);
    border: 1px solid rgba(94, 234, 212, 0.4);
    border-radius: 6px;
    font-weight: 700;
    font-size: 0.875rem;
    color: rgba(94, 234, 212, 0.95);
    flex-shrink: 0;
}

.change-text {
    flex: 1;
    font-size: 0.9375rem;
    line-height: 1.6;
    color: var(--text-primary);
}

.no-changes {
    padding: 2rem;
    text-align: center;
    color: var(--text-muted);
    font-style: italic;
}

.initial-info {
    padding: 1.5rem;
    text-align: center;
    color: var(--text-secondary);
}

.initial-info p {
    margin-bottom: 1rem;
    font-size: 1rem;
}

.metric-display {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    margin-top: 1rem;
    padding: 0.75rem 1.25rem;
    background: rgba(94, 234, 212, 0.1);
    border: 1px solid rgba(94, 234, 212, 0.2);
    border-radius: 8px;
}

.metric-display .metric-label {
    font-size: 0.875rem;
    margin: 0;
}

.metric-display .metric-value {
    font-size: 1.125rem;
    margin: 0;
}

#tree-svg {
    width: 100%;
    height: 100%;
    cursor: grab;
    background:
        radial-gradient(circle at 18% 22%, rgba(96, 165, 250, 0.18), transparent 55%),
        radial-gradient(circle at 80% -10%, rgba(129, 140, 248, 0.12), transparent 45%),
        var(--bg-primary);
}

#tree-svg:active {
    cursor: grabbing;
}

.tree-root {
    transition: transform 0.25s ease;
}

.node {
    transition: transform 0.25s ease, opacity 0.25s ease;
}

.node circle {
    cursor: pointer;
    stroke-width: 2px;
    stroke: rgba(15, 23, 42, 0.65);
    transition: all 0.25s ease;
}

.node.success circle {
    fill: var(--success-color);
}

.node.bug circle {
    fill: var(--error-color);
}

.node.normal circle {
    fill: var(--warning-color);
}

.node-halo {
    fill: none;
    stroke-width: 2px;
    opacity: 0.35;
    transform-box: fill-box;
    transform-origin: center;
    transition: opacity 0.3s ease;
}

.node.success .node-halo {
    stroke: rgba(52, 211, 153, 0.45);
    animation: nodePulse 2.4s ease-in-out infinite;
}

.node.bug .node-halo {
    stroke: rgba(248, 113, 113, 0.5);
    animation: nodePulse 2.2s ease-in-out infinite;
}

.node.normal .node-halo {
    stroke: rgba(251, 191, 36, 0.45);
    animation: nodePulse 2.8s ease-in-out infinite;
}

.node.selected circle {
    stroke: var(--primary-color);
    stroke-width: 3px;
    filter: drop-shadow(0 0 14px rgba(96, 165, 250, 0.45));
}

.node.playing circle {
    stroke: rgba(94, 234, 212, 0.9);
    stroke-width: 3px;
    filter: drop-shadow(0 0 16px rgba(94, 234, 212, 0.6));
    animation: playingPulse 1s ease-in-out infinite;
}

.node.playing .node-halo {
    stroke: rgba(94, 234, 212, 0.7);
    opacity: 0.6;
    animation: playingHaloPulse 1s ease-in-out infinite;
}

@keyframes playingPulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.15);
    }
}

@keyframes playingHaloPulse {
    0%, 100% {
        transform: scale(1);
        opacity: 0.6;
    }
    50% {
        transform: scale(1.4);
        opacity: 0.3;
    }
}

/* Tab导航时的惊艳动画效果 */
.node.tab-navigating circle {
    stroke: rgba(139, 92, 246, 0.95);
    stroke-width: 3.5px;
    filter: drop-shadow(0 0 20px rgba(139, 92, 246, 0.8));
    animation: tabNavigatePulse 0.8s ease-in-out;
}

.node.tab-navigating .node-halo {
    stroke: rgba(139, 92, 246, 0.8);
    opacity: 0.7;
    animation: tabNavigateHaloPulse 0.8s ease-in-out;
}

@keyframes tabNavigatePulse {
    0% {
        transform: scale(0.8);
        opacity: 0.5;
    }
    50% {
        transform: scale(1.25);
        opacity: 1;
    }
    100% {
        transform: scale(1);
        opacity: 1;
    }
}

@keyframes tabNavigateHaloPulse {
    0% {
        transform: scale(0.5);
        opacity: 0.2;
    }
    50% {
        transform: scale(1.6);
        opacity: 0.6;
    }
    100% {
        transform: scale(1);
        opacity: 0.4;
    }
}

.node.virtual.root-node circle {
    fill: rgba(96, 165, 250, 0.9) !important;
    stroke: rgba(96, 165, 250, 1) !important;
    stroke-width: 2px;
}

.node.virtual.root-node .node-halo {
    stroke: rgba(96, 165, 250, 0.5);
    opacity: 0.6;
}

.node.virtual.root-node text {
    fill: rgba(96, 165, 250, 0.95);
    font-weight: 700;
}

/* 紫色高亮：metric大于所有祖先的节点 */
.node.metric-highlight circle {
    stroke: rgba(167, 139, 250, 0.95);
    stroke-width: 3px;
    filter: drop-shadow(0 0 16px rgba(167, 139, 250, 0.8));
    animation: metricHighlightPulse 2s ease-in-out infinite;
}

.node.metric-highlight .node-halo {
    stroke: rgba(167, 139, 250, 0.7);
    opacity: 0.7;
    animation: metricHighlightHaloPulse 2s ease-in-out infinite;
}

/* 路径高亮：路径上的节点（性能提升路径） */
.node.path-highlight circle {
    stroke: rgba(139, 92, 246, 0.85);
    stroke-width: 2.5px;
    filter: drop-shadow(0 0 8px rgba(139, 92, 246, 0.6));
}

.node.path-highlight .node-halo {
    stroke: rgba(139, 92, 246, 0.5);
    opacity: 0.5;
}

/* 既是高亮节点又在路径上的节点 */
.node.metric-highlight.path-highlight circle {
    stroke: rgba(167, 139, 250, 0.95);
    stroke-width: 3px;
    filter: drop-shadow(0 0 16px rgba(167, 139, 250, 0.8));
    animation: metricHighlightPulse 2s ease-in-out infinite;
}

.node.metric-highlight.path-highlight .node-halo {
    stroke: rgba(167, 139, 250, 0.7);
    opacity: 0.7;
    animation: metricHighlightHaloPulse 2s ease-in-out infinite;
}

@keyframes metricHighlightPulse {
    0%, 100% {
        transform: scale(1);
        filter: drop-shadow(0 0 16px rgba(167, 139, 250, 0.8));
    }
    50% {
        transform: scale(1.1);
        filter: drop-shadow(0 0 24px rgba(167, 139, 250, 1));
    }
}

@keyframes metricHighlightHaloPulse {
    0%, 100% {
        transform: scale(1);
        opacity: 0.7;
    }
    50% {
        transform: scale(1.3);
        opacity: 0.4;
    }
}

.node text {
    fill: var(--text-primary);
    font-size: 12px;
    font-weight: 500;
    letter-spacing: 0.02em;
    pointer-events: none;
    user-select: none;
    text-shadow: 0 3px 8px rgba(15, 23, 42, 0.6);
}

.link {
    fill: none;
    stroke-width: 3px;
    stroke-linecap: round;
    stroke-opacity: 0.7;
    filter: drop-shadow(0 0 2px rgba(96, 165, 250, 0.5));
    transition: stroke-width 0.15s ease;
}

/* 高亮路径上的连线 */
.link.path-highlight {
    stroke-width: 4px;
    stroke-opacity: 0.9;
    filter: drop-shadow(0 0 6px rgba(167, 139, 250, 0.8));
    animation: pathLinkPulse 2.5s ease-in-out infinite;
}

@keyframes pathLinkPulse {
    0%, 100% {
        stroke-opacity: 0.85;
        filter: drop-shadow(0 0 6px rgba(167, 139, 250, 0.8));
    }
    50% {
        stroke-opacity: 1;
        filter: drop-shadow(0 0 10px rgba(167, 139, 250, 1));
    }
}

.link.link-flash {
    stroke-width: 5px;
    filter: drop-shadow(0 0 8px rgba(94, 234, 212, 0.8));
    animation: linkFlash 0.9s ease;
}

@keyframes linkFlash {
    0%, 100% {
        stroke-width: 3px;
        filter: drop-shadow(0 0 2px rgba(96, 165, 250, 0.5));
    }
    25%, 75% {
        stroke-width: 5px;
        filter: drop-shadow(0 0 12px rgba(94, 234, 212, 0.9));
    }
    50% {
        stroke-width: 6px;
        filter: drop-shadow(0 0 16px rgba(94, 234, 212, 1));
    }
}

@keyframes nodePulse {
    0% {
        transform: scale(1);
        opacity: 0.36;
    }
    50% {
        transform: scale(1.18);
        opacity: 0.08;
    }
    100% {
        transform: scale(1);
        opacity: 0.36;
    }
}

.node-details {
    width: 35vw;
    min-width: 520px;
    max-width: 50vw;
    background: linear-gradient(185deg, rgba(30, 41, 59, 0.92), rgba(15, 23, 42, 0.94));
    border-left: 2px solid rgba(139, 92, 246, 0.3);
    backdrop-filter: blur(18px);
    display: flex;
    flex-direction: column;
    box-shadow: -24px 0 48px rgba(2, 6, 23, 0.55), inset 2px 0 0 rgba(139, 92, 246, 0.2);
    padding: 2.5rem 3rem;
    position: relative;
    flex-shrink: 0;
    overflow: hidden;
    order: 2;
}

/* 播放时调整布局 */
.viewer-content.playback-active .node-details {
    width: 25vw;
    min-width: 350px;
}

.node-details-resize-handle {
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 6px;
    cursor: ew-resize;
    background: transparent;
    z-index: 10;
    transition: background 0.2s ease;
}

.node-details-resize-handle:hover {
    background: rgba(139, 92, 246, 0.4);
}

.node-details-resize-handle::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    width: 3px;
    height: 60px;
    background: linear-gradient(180deg, rgba(167, 139, 250, 0.8), rgba(139, 92, 246, 0.6));
    border-radius: 2px;
    opacity: 0;
    transition: opacity 0.2s ease;
    box-shadow: 0 0 8px rgba(139, 92, 246, 0.5);
}

.node-details-resize-handle:hover::before {
    opacity: 1;
}

.node-details-resize-handle:active {
    background: rgba(139, 92, 246, 0.6);
}

.node-details-content {
    height: 100%;
    overflow-y: auto;
    overflow-x: hidden;
}

.node-details-content {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    padding-right: 0.5rem;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.details-placeholder {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    color: var(--text-muted);
    text-align: center;
}

.details-placeholder svg {
    width: 64px;
    height: 64px;
    margin-bottom: 1rem;
    opacity: 0.5;
}

.details-placeholder.fancy {
    position: relative;
    gap: 1.25rem;
    border: 1px dashed rgba(148, 163, 184, 0.25);
    border-radius: 16px;
    padding: 2.75rem 2.25rem;
    margin: 1.5rem;
    background: radial-gradient(circle at 20% 20%, rgba(96, 165, 250, 0.12), transparent 70%),
        radial-gradient(circle at 80% 10%, rgba(129, 140, 248, 0.18), transparent 65%),
        rgba(15, 23, 42, 0.72);
    box-shadow: inset 0 0 30px rgba(15, 23, 42, 0.45);
}

.details-placeholder.fancy svg {
    opacity: 0.8;
    stroke: rgba(96, 165, 250, 0.75);
}

.details-placeholder.fancy h3 {
    font-size: 1.15rem;
    color: var(--text-primary);
    margin-bottom: 0.35rem;
}

.details-placeholder.fancy p {
    max-width: 18rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

.placeholder-orb {
    position: absolute;
    inset: 0;
    border-radius: 16px;
    pointer-events: none;
    background: radial-gradient(circle, rgba(96, 165, 250, 0.18) 0%, transparent 60%);
    filter: blur(28px);
    opacity: 0.65;
}

.details-content {
    padding: 1.5rem;
}

.details-header {
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.details-header h3 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
}

.node-badges {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    margin-top: 0.75rem;
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0.25rem 0.75rem;
    font-size: 0.75rem;
    font-weight: 500;
    border-radius: 9999px;
    text-transform: uppercase;
}

.badge.success {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success-color);
}

.badge.error {
    background: rgba(239, 68, 68, 0.1);
    color: var(--error-color);
}

.badge.info {
    background: rgba(99, 102, 241, 0.1);
    color: var(--primary-color);
}

.property-section {
    margin-bottom: 1.5rem;
}

.property-label {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.view-btn {
    padding: 0.25rem 0.75rem;
    background: var(--primary-color);
    border: none;
    border-radius: 6px;
    color: white;
    font-size: 0.75rem;
    cursor: pointer;
    transition: all 0.2s ease;
}

.view-btn:hover {
    background: var(--primary-hover);
    transform: scale(1.05);
}

.property-value {
    padding: 1rem;
    background: var(--bg-tertiary);
    border-radius: 8px;
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.6;
    max-height: 150px;
    overflow-y: auto;
    white-space: pre-wrap;
    word-break: break-word;
}

.property-value::-webkit-scrollbar {
    width: 6px;
}

.property-value::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

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

.property-value::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}

.property-list {
    padding: 0.75rem;
    background: var(--bg-tertiary);
    border-radius: 8px;
}

.property-list li {
    padding: 0.5rem;
    margin-bottom: 0.5rem;
    background: var(--bg-secondary);
    border-radius: 6px;
    font-size: 0.875rem;
    color: var(--text-secondary);
    list-style: none;
}

.property-list li:last-child {
    margin-bottom: 0;
}

/* 模态框 */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.75);
    z-index: 1000;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(4px);
}

.modal.active {
    display: flex;
}

.modal-content {
    background: var(--bg-secondary);
    border-radius: 16px;
    max-width: 90%;
    max-height: 90%;
    width: 800px;
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-xl);
    border: 1px solid var(--border-color);
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.5rem;
    border-bottom: 1px solid var(--border-color);
}

.modal-header h3 {
    font-size: 1.25rem;
    font-weight: 600;
}

.close-btn {
    padding: 0.5rem;
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    border-radius: 6px;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.close-btn:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.close-btn svg {
    width: 20px;
    height: 20px;
}

.modal-body {
    flex: 1;
    overflow-y: auto;
    padding: 1.5rem;
}

.modal-body pre {
    background: var(--code-bg);
    color: var(--code-text);
    padding: 1.5rem;
    border-radius: 8px;
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
    font-size: 0.875rem;
    line-height: 1.6;
    overflow-x: auto;
    white-space: pre-wrap;
    word-break: break-word;
}

/* 滚动条样式 */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}

/* 翻页式节点详情 */
.details-pages {
    display: flex;
    flex-direction: column;
    height: 100%;
    border-radius: 20px;
    background: linear-gradient(200deg, rgba(30, 41, 59, 0.82), rgba(15, 23, 42, 0.95));
    border: 1px solid rgba(148, 163, 184, 0.08);
    overflow: hidden;
    box-shadow: inset 0 0 0 1px rgba(15, 23, 42, 0.35);
}

.details-active .details-pages {
    animation: detailsSurface 0.35s ease;
}

.pages-header {
    padding: 0 0 1.75rem;
    border-bottom: 1px solid rgba(148, 163, 184, 0.12);
    display: flex;
    flex-direction: column;
    gap: 0.875rem;
    margin-bottom: 0;
}

.header-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    flex-wrap: wrap;
}

.node-pill {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.4rem 0.85rem;
    font-size: 0.75rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    border-radius: 999px;
    color: var(--text-primary);
    background: rgba(96, 165, 250, 0.16);
    border: 1px solid rgba(96, 165, 250, 0.35);
    box-shadow: 0 10px 24px rgba(96, 165, 250, 0.2);
}

.pages-header h3 {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    font-size: 2.25rem;
    font-weight: 700;
    letter-spacing: -0.025em;
    margin: 0;
    color: rgba(241, 245, 249, 1);
    line-height: 1.25;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.header-subtitle {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    margin: 0;
    font-size: 1rem;
    letter-spacing: -0.01em;
    color: rgba(148, 163, 184, 0.85);
    opacity: 1;
    line-height: 1.7;
    font-weight: 400;
}

.page-tabs {
    display: flex;
    gap: 0.5rem;
    overflow-x: auto;
    padding: 1.25rem 0 0.75rem;
    border-bottom: 1px solid rgba(148, 163, 184, 0.12);
    margin-bottom: 0;
}

.page-tab {
    padding: 0.5rem 1rem;
    background: rgba(148, 163, 184, 0.08);
    border: 1px solid transparent;
    border-radius: 6px;
    color: var(--text-muted);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    font-size: 0.875rem;
    font-weight: 500;
    letter-spacing: -0.01em;
    cursor: pointer;
    transition: all 0.2s ease;
    white-space: nowrap;
    backdrop-filter: blur(6px);
}

.page-tab:hover {
    color: var(--text-primary);
    background: rgba(148, 163, 184, 0.18);
}

.page-tab.active {
    color: var(--text-primary);
    background: rgba(96, 165, 250, 0.15);
    border-color: rgba(96, 165, 250, 0.25);
}

.page-content {
    flex: 1;
    overflow-y: auto;
    padding: 3rem 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 3rem;
}

.page-section {
    display: none;
    opacity: 0;
    transform: translateY(6px);
    transition: opacity 0.25s ease, transform 0.25s ease;
}

.page-section.active {
    display: block;
    opacity: 1;
    transform: translateY(0);
}

@keyframes detailsSurface {
    from {
        opacity: 0;
        transform: translateY(8px) scale(0.98);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 代码块样式 */
.code-block {
    background: #1e1e1e;
    margin: 1.5rem 0;
    padding: 0;
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid rgba(139, 92, 246, 0.4);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4), inset 0 1px 0 rgba(255, 255, 255, 0.05), 0 0 0 1px rgba(139, 92, 246, 0.1);
    position: relative;
}

.code-block::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, rgba(167, 139, 250, 0.9), rgba(139, 92, 246, 0.7), rgba(124, 58, 237, 0.6));
    opacity: 0.8;
    box-shadow: 0 0 12px rgba(139, 92, 246, 0.4);
}

.code-block code {
    display: block;
    font-family: 'JetBrains Mono', 'Fira Code', 'Consolas', 'Segoe UI Mono', monospace;
    font-size: 0.9375rem;
    line-height: 1.8;
    padding: 2rem 2.5rem;
    margin: 0;
    overflow-x: auto;
    white-space: pre;
    color: #e0e0e0;
    background: transparent;
}

/* Prism.js主题覆盖 */
.code-block pre[class*="language-"] {
    margin: 0;
    padding: 0;
    background: transparent;
}

.code-block code[class*="language-"] {
    background: transparent;
}

.code-block .token.comment,
.code-block .token.prolog,
.code-block .token.doctype,
.code-block .token.cdata {
    color: #6a9955;
    font-style: italic;
}

.code-block .token.punctuation {
    color: #d4d4d4;
}

.code-block .token.property,
.code-block .token.tag,
.code-block .token.boolean,
.code-block .token.number,
.code-block .token.constant,
.code-block .token.symbol,
.code-block .token.deleted {
    color: #569cd6;
}

.code-block .token.selector,
.code-block .token.attr-name,
.code-block .token.string,
.code-block .token.char,
.code-block .token.builtin,
.code-block .token.inserted {
    color: #ce9178;
}

.code-block .token.operator,
.code-block .token.entity,
.code-block .token.url,
.code-block .language-css .token.string,
.code-block .style .token.string {
    color: #d4d4d4;
}

.code-block .token.atrule,
.code-block .token.attr-value,
.code-block .token.keyword {
    color: #c586c0;
}

.code-block .token.function,
.code-block .token.class-name {
    color: #dcdcaa;
}

.code-block .token.regex,
.code-block .token.important,
.code-block .token.variable {
    color: #d16969;
}

/* Markdown风格文本块 */
.text-block {
    background: linear-gradient(160deg, rgba(30, 41, 59, 0.95), rgba(15, 23, 42, 0.98));
    margin: 1.5rem 0;
    padding: 0;
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid rgba(148, 163, 184, 0.2);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4), inset 0 1px 0 rgba(255, 255, 255, 0.03);
    position: relative;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    font-size: 1.0625rem;
    line-height: 1.85;
    letter-spacing: -0.01em;
    color: rgba(241, 245, 249, 0.98);
    max-width: 100%;
    font-weight: 400;
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    font-feature-settings: "kern" 1, "liga" 1, "calt" 1, "pnum" 1, "tnum" 0, "onum" 1, "lnum" 0, "dlig" 0;
}

.text-block::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, rgba(129, 140, 248, 0.6), rgba(96, 165, 250, 0.4));
    opacity: 0.6;
}

.text-block.muted {
    background: linear-gradient(160deg, rgba(30, 41, 59, 0.85), rgba(15, 23, 42, 0.9));
    border-color: rgba(148, 163, 184, 0.15);
    opacity: 0.9;
}

.text-block-content .muted {
    color: rgba(148, 163, 184, 0.85);
    font-style: italic;
}

.text-block-content {
    padding: 2rem 2.5rem;
    margin: 0;
    display: block;
}

.text-block-content .highlight-block {
    margin-left: 0;
    margin-right: 0;
    margin-top: 1rem;
    margin-bottom: 1rem;
}

.text-block p {
    margin: 0 0 1.5em;
    font-weight: 400;
    color: rgba(241, 245, 249, 0.98);
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    word-wrap: break-word;
    hyphens: auto;
}

.text-block p:first-child {
    margin-top: 0;
}

.text-block p:last-child {
    margin-bottom: 0;
}

/* Markdown样式元素 */
.text-block strong,
.text-block b {
    font-weight: 600;
    color: rgba(241, 245, 249, 1);
}

.text-block em,
.text-block i {
    font-style: italic;
    color: rgba(241, 245, 249, 0.95);
}

.text-block code {
    background: rgba(15, 23, 42, 0.8);
    padding: 0.2em 0.4em;
    border-radius: 4px;
    font-family: 'JetBrains Mono', 'Fira Code', 'Consolas', 'Segoe UI Mono', monospace;
    font-size: 0.9em;
    color: rgba(96, 165, 250, 0.9);
    border: 1px solid rgba(96, 165, 250, 0.2);
}

.text-block a {
    color: rgba(96, 165, 250, 0.9);
    text-decoration: none;
    border-bottom: 1px solid rgba(96, 165, 250, 0.3);
    transition: all 0.2s ease;
}

.text-block a:hover {
    color: rgba(96, 165, 250, 1);
    border-bottom-color: rgba(96, 165, 250, 0.6);
}

.text-block h1,
.text-block h2,
.text-block h3,
.text-block h4,
.text-block h5,
.text-block h6 {
    font-weight: 600;
    margin-top: 1.5em;
    margin-bottom: 0.75em;
    color: rgba(241, 245, 249, 1);
    line-height: 1.3;
}

.text-block h1 {
    font-size: 1.75em;
    border-bottom: 2px solid rgba(148, 163, 184, 0.2);
    padding-bottom: 0.5em;
}

.text-block h2 {
    font-size: 1.5em;
    border-bottom: 1px solid rgba(148, 163, 184, 0.15);
    padding-bottom: 0.4em;
}

.text-block h3 {
    font-size: 1.25em;
}

.text-block h4 {
    font-size: 1.1em;
}

.text-block hr {
    border: none;
    border-top: 1px solid rgba(148, 163, 184, 0.2);
    margin: 2em 0;
}

.text-block blockquote {
    border-left: 3px solid rgba(96, 165, 250, 0.5);
    padding-left: 1.5em;
    margin: 1.5em 0;
    color: rgba(148, 163, 184, 0.9);
    font-style: italic;
    background: rgba(96, 165, 250, 0.05);
    padding: 1em 1.5em;
    border-radius: 6px;
    margin-left: 0;
}

/* 文本渲染优化 */
* {
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-top: 0;
    padding: 0.5rem 0.75rem;
}

.info-grid .info-item:last-child .highlight-block {
    margin-bottom: 0.5rem;
}

/* 高亮块样式 */
.highlight-block {
    background: linear-gradient(160deg, rgba(30, 41, 59, 0.95), rgba(15, 23, 42, 0.98));
    border: 1px solid rgba(94, 234, 212, 0.35);
    border-radius: 10px;
    padding: 1.25rem 1.5rem;
    margin-bottom: 1rem;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3), inset 0 1px 0 rgba(255, 255, 255, 0.03), 0 0 0 1px rgba(94, 234, 212, 0.08);
    transition: all 0.2s ease;
    position: relative;
}

.highlight-block::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
    background: linear-gradient(180deg, rgba(94, 234, 212, 0.85), rgba(56, 189, 248, 0.75), rgba(59, 130, 246, 0.65));
    border-radius: 10px 0 0 10px;
    box-shadow: 0 0 12px rgba(94, 234, 212, 0.35);
}

.highlight-block:hover {
    border-color: rgba(94, 234, 212, 0.55);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.4), inset 0 1px 0 rgba(255, 255, 255, 0.05), 0 0 0 1px rgba(94, 234, 212, 0.18), 0 0 20px rgba(56, 189, 248, 0.25);
    transform: translateY(-1px);
}

.highlight-block-label {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    font-size: 0.875rem;
    font-weight: 700;
    text-transform: uppercase;
    color: rgba(94, 234, 212, 0.92);
    letter-spacing: 0.1em;
    margin-bottom: 0.75rem;
    display: block;
    text-shadow: 0 0 8px rgba(94, 234, 212, 0.25);
    background: linear-gradient(135deg, rgba(94, 234, 212, 0.12), rgba(56, 189, 248, 0.08));
    padding: 0.5rem 0.75rem;
    border-radius: 6px;
    border: 1px solid rgba(94, 234, 212, 0.18);
    margin-left: -0.75rem;
    margin-right: -0.75rem;
    margin-top: -0.25rem;
}

.highlight-block-value {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    font-size: 1rem;
    font-weight: 400;
    letter-spacing: -0.01em;
    color: rgba(241, 245, 249, 1);
    line-height: 1.7;
    display: block;
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* 播放时的changes高亮动画 */
.highlight-block.playing-change {
    opacity: 0;
    transform: translateY(10px);
    transition: all 0.4s ease;
}

.highlight-block.playing-change.animate-in {
    opacity: 1;
    transform: translateY(0);
    border-color: rgba(94, 234, 212, 0.5);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.4), inset 0 1px 0 rgba(255, 255, 255, 0.05), 0 0 0 1px rgba(94, 234, 212, 0.2), 0 0 20px rgba(94, 234, 212, 0.3);
}

/* Overview部分高亮块 */
.info-item {
    padding: 0;
    background: transparent;
    border-radius: 0;
    border: none;
    box-shadow: none;
    margin-bottom: 1rem;
}

.info-item .highlight-block {
    margin-bottom: 0;
}

.info-item:last-child {
    margin-bottom: 0;
}

/* 保留原有样式以兼容 */
.info-label {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    color: var(--text-muted);
    letter-spacing: 0.05em;
    margin-bottom: 0.5em;
    display: block;
}

.info-value {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    font-size: 1.0625rem;
    font-weight: 500;
    letter-spacing: -0.01em;
    color: rgba(241, 245, 249, 0.98);
    line-height: 1.7;
    display: block;
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.list-section {
    margin-top: 0;
    padding: 1rem 1rem;
}

.list-section ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0;
    margin: 0;
    padding: 0;
    padding-left: 0;
}

.list-section li .highlight-block {
    margin-left: 0;
    margin-right: 0;
    margin-top: 0.75rem;
    margin-bottom: 0.75rem;
}

.list-section li:first-child .highlight-block {
    margin-top: 0.75rem;
}

.list-section li:last-child .highlight-block {
    margin-bottom: 0.75rem;
}

.list-section li {
    position: relative;
    padding: 0;
    margin-bottom: 1rem;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    font-size: 1rem;
    line-height: 1.7;
    letter-spacing: -0.01em;
    color: rgba(241, 245, 249, 0.98);
    font-weight: 400;
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    list-style: none;
}

.list-section li:last-child {
    margin-bottom: 0;
}

.list-section li .highlight-block {
    margin-bottom: 0;
}

.list-section li::before {
    display: none;
}

/* Plan & Changes 合并容器 */
.plan-changes-container {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    padding: 0 0.5rem;
}

.plan-section,
.changes-section {
    display: flex;
    flex-direction: column;
    padding: 0 0.25rem;
}

.section-title {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    font-size: 1.125rem;
    font-weight: 700;
    color: rgba(94, 234, 212, 0.92);
    margin-bottom: 1rem;
    padding-bottom: 0.75rem;
    border-bottom: 2px solid rgba(94, 234, 212, 0.18);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .viewer-content {
        flex-direction: column;
    }

    .playback-panel {
        width: 100%;
        max-width: 100%;
        height: 300px;
        border-left: none;
        border-top: 1px solid var(--border-color);
        order: 0;
        min-width: unset;
    }
    
    .playback-controls-group {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.75rem;
    }

    .node-details {
        width: 100%;
        height: 300px;
        border-left: none;
        border-top: 1px solid var(--border-color);
        padding: 1.5rem;
        min-width: unset;
        max-width: unset;
    }

    .tree-container {
        height: calc(100vh - 670px);
    }
    
    .page-content {
        padding: 1.5rem 1rem;
    }
    
    .pages-header {
        padding: 0 0 1.25rem;
    }
    
    .page-tabs {
        padding: 1rem 0 0.75rem;
    }
}

@media (max-width: 768px) {
    .header h1 {
        font-size: 2rem;
    }

    .competition-grid {
        grid-template-columns: 1fr;
    }

    .modal-content {
        width: 95%;
        max-height: 95%;
    }
    
    .page-tabs {
        padding: 0.5rem 1rem 0;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
    }
    
    .page-tabs::-webkit-scrollbar {
        display: none;
    }
    
    .page-tab {
        padding: 0.5rem 0.75rem;
        font-size: 0.8125rem;
        white-space: nowrap;
        flex-shrink: 0;
    }
    
    .viewer-header {
        padding: 1rem;
        flex-wrap: wrap;
        gap: 0.5rem;
    }
    
    .viewer-header h2 {
        font-size: 1.125rem;
        flex: 1 1 100%;
        order: 2;
    }
    
    .back-btn {
        order: 1;
        padding: 0.5rem 0.75rem;
        font-size: 0.875rem;
    }
    
    .viewer-controls {
        order: 1;
        gap: 0.5rem;
    }
    
    .control-btn {
        padding: 0.5rem;
        width: 36px;
        height: 36px;
    }
    
    .node-details {
        padding: 1rem;
        height: 400px;
    }
    
    .pages-header {
        padding: 0 0 1rem;
    }
    
    .header-meta {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.75rem;
    }
    
    .node-pill {
        font-size: 0.875rem;
    }
    
    .badge {
        font-size: 0.75rem;
        padding: 0.25rem 0.5rem;
    }
    
    .page-content {
        padding: 1rem 0.75rem;
    }
    
    .plan-changes-container {
        gap: 1.5rem;
        padding: 0 0.25rem;
    }
    
    .text-block-content {
        padding: 1rem 1rem;
    }
    
    .highlight-block {
        padding: 1rem;
        margin: 0.75rem 0;
    }
    
    .list-section {
        padding: 1rem 0.75rem;
    }
    
    .info-grid {
        gap: 0.75rem;
    }
    
    .code-block {
        font-size: 0.8125rem;
        padding: 1rem;
        overflow-x: auto;
    }
    
    .tree-container {
        height: calc(100vh - 450px);
        min-height: 300px;
    }
    
    .node-details-resize-handle {
        display: none; /* 手机端隐藏调整大小手柄 */
    }
}

@media (max-width: 480px) {
    .container {
        padding: 1rem;
    }
    
    .header {
        padding: 1rem 0;
        margin-bottom: 2rem;
    }
    
    .header h1 {
        font-size: 1.75rem;
    }
    
    .subtitle {
        font-size: 0.9375rem;
    }
    
    .search-box {
        margin-bottom: 1.5rem;
    }
    
    .competition-card {
        padding: 1rem;
    }
    
    .competition-card h3 {
        font-size: 1rem;
    }
    
    .viewer-header {
        padding: 0.75rem;
    }
    
    .node-details {
        padding: 0.75rem;
        height: 350px;
    }
    
    .page-content {
        padding: 1rem 0.5rem;
    }
    
    .plan-changes-container {
        padding: 0 0.25rem;
    }
    
    .text-block-content {
        padding: 0.75rem 0.75rem;
    }
    
    .list-section {
        padding: 0.75rem 0.5rem;
    }
    
    .tree-container {
        height: calc(100vh - 400px);
    }
}

/* 加载动画 */
@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

.loading {
    animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}