/* ============================================
   TRAE 大赛项目分析看板 · 数据情报中心风格
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@400;500;700;900&family=Rajdhani:wght@300;400;500;600;700&family=Noto+Sans+SC:wght@300;400;500;700;900&family=JetBrains+Mono:wght@400;500;700&display=swap');

:root {
  /* 背景层 */
  --bg-deep: #060818;
  --bg-base: #0a0e27;
  --bg-card: #131836;
  --bg-elevated: #1a2050;
  --bg-glass: rgba(19, 24, 54, 0.6);

  /* 边框 */
  --border: rgba(0, 217, 255, 0.12);
  --border-bright: rgba(0, 217, 255, 0.4);
  --border-gold: rgba(255, 215, 0, 0.5);

  /* 文本 */
  --text-primary: #e8ecff;
  --text-secondary: #8a92c7;
  --text-muted: #4a5285;
  --text-bright: #ffffff;

  /* 强调色 */
  --accent-cyan: #00d9ff;
  --accent-orange: #ff6b35;
  --accent-green: #00f5a0;
  --accent-gold: #ffd700;
  --accent-purple: #b366ff;
  --accent-red: #ff3366;
  --accent-pink: #ff4d8d;

  /* 阴影 */
  --shadow-glow: 0 0 30px rgba(0, 217, 255, 0.15);
  --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.4);
  --shadow-gold: 0 0 40px rgba(255, 215, 0, 0.3);

  /* 字体 */
  --font-display: 'Orbitron', 'Rajdhani', sans-serif;
  --font-body: 'Noto Sans SC', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background: var(--bg-deep);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
  background-image:
    radial-gradient(ellipse at top left, rgba(0, 217, 255, 0.08) 0%, transparent 50%),
    radial-gradient(ellipse at bottom right, rgba(179, 102, 255, 0.06) 0%, transparent 50%),
    linear-gradient(180deg, var(--bg-deep) 0%, var(--bg-base) 100%);
}

/* 网格背景 */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(0, 217, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 217, 255, 0.04) 1px, transparent 1px);
  background-size: 50px 50px;
  pointer-events: none;
  z-index: 0;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 80%);
}

/* ============================================
   导航栏
   ============================================ */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(6, 8, 24, 0.85);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  padding: 0 32px;
  height: 64px;
  display: flex;
  align-items: center;
  gap: 4px;
  overflow-x: auto;
  scrollbar-width: thin;
}

.nav-brand {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 18px;
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-right: 24px;
  white-space: nowrap;
  letter-spacing: 1px;
}

.nav a {
  color: var(--text-secondary);
  text-decoration: none;
  padding: 8px 16px;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 500;
  transition: all 0.2s;
  white-space: nowrap;
  position: relative;
}

.nav a:hover {
  color: var(--accent-cyan);
  background: rgba(0, 217, 255, 0.08);
}

.nav a.active {
  color: var(--accent-cyan);
  background: rgba(0, 217, 255, 0.12);
  box-shadow: inset 0 0 0 1px var(--border-bright);
}

/* ============================================
   容器
   ============================================ */
.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 48px 32px;
  position: relative;
  z-index: 1;
}

.page-title {
  font-family: var(--font-display);
  font-size: 48px;
  font-weight: 900;
  letter-spacing: -1px;
  margin-bottom: 8px;
  background: linear-gradient(135deg, var(--text-bright) 0%, var(--accent-cyan) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.page-subtitle {
  color: var(--text-secondary);
  font-size: 16px;
  margin-bottom: 48px;
  letter-spacing: 0.5px;
}

/* ============================================
   Hero 区域
   ============================================ */
.hero {
  position: relative;
  padding: 80px 32px 64px;
  text-align: center;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 20% 50%, rgba(0, 217, 255, 0.15) 0%, transparent 40%),
    radial-gradient(circle at 80% 50%, rgba(179, 102, 255, 0.12) 0%, transparent 40%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 1100px;
  margin: 0 auto;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  border-radius: 999px;
  background: rgba(0, 217, 255, 0.08);
  border: 1px solid var(--border-bright);
  color: var(--accent-cyan);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 24px;
  font-family: var(--font-mono);
}

.hero-badge::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent-cyan);
  box-shadow: 0 0 10px var(--accent-cyan);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.3); }
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(40px, 6vw, 80px);
  font-weight: 900;
  letter-spacing: -2px;
  line-height: 1;
  margin-bottom: 24px;
  background: linear-gradient(135deg, #ffffff 0%, var(--accent-cyan) 50%, var(--accent-purple) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  text-shadow: 0 0 80px rgba(0, 217, 255, 0.3);
}

.hero-subtitle {
  font-size: 18px;
  color: var(--text-secondary);
  max-width: 720px;
  margin: 0 auto 48px;
  line-height: 1.7;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 24px;
  max-width: 1000px;
  margin: 0 auto;
}

.hero-stat {
  background: var(--bg-glass);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 32px 24px;
  transition: all 0.3s;
  position: relative;
  overflow: hidden;
}

.hero-stat::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent-cyan), transparent);
  opacity: 0.5;
}

.hero-stat:hover {
  transform: translateY(-4px);
  border-color: var(--border-bright);
  box-shadow: var(--shadow-glow);
}

.hero-stat-value {
  font-family: var(--font-display);
  font-size: 48px;
  font-weight: 900;
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-green));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1;
  margin-bottom: 8px;
}

.hero-stat-label {
  color: var(--text-secondary);
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 2px;
  font-weight: 500;
}

/* ============================================
   卡片通用
   ============================================ */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 32px;
  transition: all 0.3s;
  position: relative;
}

.card:hover {
  border-color: var(--border-bright);
  box-shadow: var(--shadow-glow);
}

.card-title {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 24px;
  color: var(--text-bright);
  display: flex;
  align-items: center;
  gap: 12px;
}

.card-title::before {
  content: '';
  width: 4px;
  height: 20px;
  background: linear-gradient(180deg, var(--accent-cyan), var(--accent-purple));
  border-radius: 2px;
}

/* ============================================
   网格布局
   ============================================ */
.grid {
  display: grid;
  gap: 24px;
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-auto { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }

@media (max-width: 1024px) {
  .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .container { padding: 32px 16px; }
  .page-title { font-size: 32px; }
  .hero { padding: 48px 16px; }
}

/* ============================================
   项目卡片
   ============================================ */
.project-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 24px;
  transition: all 0.3s;
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  gap: 12px;
  animation: fadeUp 0.6s ease-out backwards;
}

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

.project-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-bright);
  box-shadow: var(--shadow-glow);
}

.project-card.top-1 {
  border-color: var(--border-gold);
  background: linear-gradient(135deg, var(--bg-card) 0%, rgba(255, 215, 0, 0.05) 100%);
  box-shadow: var(--shadow-gold);
}

.project-card.top-2 {
  border-color: rgba(192, 192, 192, 0.4);
  background: linear-gradient(135deg, var(--bg-card) 0%, rgba(192, 192, 192, 0.04) 100%);
}

.project-card.top-3 {
  border-color: rgba(205, 127, 50, 0.4);
  background: linear-gradient(135deg, var(--bg-card) 0%, rgba(205, 127, 50, 0.04) 100%);
}

.project-rank {
  position: absolute;
  top: 16px;
  right: 16px;
  font-family: var(--font-display);
  font-size: 32px;
  font-weight: 900;
  color: var(--text-muted);
  opacity: 0.4;
  line-height: 1;
}

.project-card.top-1 .project-rank,
.project-card.top-2 .project-rank,
.project-card.top-3 .project-rank {
  opacity: 1;
}

.project-card.top-1 .project-rank { color: var(--accent-gold); }
.project-card.top-2 .project-rank { color: #c0c0c0; }
.project-card.top-3 .project-rank { color: #cd7f32; }

.project-title {
  font-size: 17px;
  font-weight: 600;
  color: var(--text-bright);
  line-height: 1.4;
  padding-right: 48px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.project-title a {
  color: inherit;
  text-decoration: none;
  transition: color 0.2s;
}

.project-title a:hover { color: var(--accent-cyan); }

.project-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

.tag {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 4px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.5px;
  font-family: var(--font-mono);
}

.tag-track-学习工作 { background: rgba(0, 217, 255, 0.12); color: var(--accent-cyan); border: 1px solid rgba(0, 217, 255, 0.3); }
.tag-track-生活娱乐 { background: rgba(255, 107, 53, 0.12); color: var(--accent-orange); border: 1px solid rgba(255, 107, 53, 0.3); }
.tag-track-社会服务 { background: rgba(0, 245, 160, 0.12); color: var(--accent-green); border: 1px solid rgba(0, 245, 160, 0.3); }
.tag-track-硬件交互 { background: rgba(179, 102, 255, 0.12); color: var(--accent-purple); border: 1px solid rgba(179, 102, 255, 0.3); }
.tag-track-其他 { background: rgba(138, 146, 199, 0.12); color: var(--text-secondary); border: 1px solid rgba(138, 146, 199, 0.3); }

.tag-platform {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-secondary);
  border: 1px solid var(--border);
}

.tag-demo {
  background: rgba(255, 215, 0, 0.1);
  color: var(--accent-gold);
  border: 1px solid rgba(255, 215, 0, 0.3);
}

/* 5维评分 */
.score-bars {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 8px;
  margin-top: 8px;
}

.score-bar {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.score-bar-label {
  font-size: 10px;
  color: var(--text-muted);
  font-family: var(--font-mono);
  letter-spacing: 0.5px;
}

.score-bar-track {
  height: 4px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 2px;
  overflow: hidden;
}

.score-bar-fill {
  height: 100%;
  border-radius: 2px;
  transition: width 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.score-bar-fill.completion { background: linear-gradient(90deg, var(--accent-cyan), #66e6ff); }
.score-bar-fill.innovation { background: linear-gradient(90deg, var(--accent-purple), #d4a3ff); }
.score-bar-fill.scenario   { background: linear-gradient(90deg, var(--accent-green), #66ffcc); }
.score-bar-fill.business   { background: linear-gradient(90deg, var(--accent-orange), #ff9d6f); }
.score-bar-fill.tech       { background: linear-gradient(90deg, var(--accent-gold), #ffe066); }

.project-total {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 4px;
}

.total-value {
  font-family: var(--font-display);
  font-size: 28px;
  font-weight: 900;
  color: var(--accent-cyan);
  line-height: 1;
}

.total-label {
  font-size: 11px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.project-preview {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.6;
  padding: 12px;
  background: rgba(0, 0, 0, 0.2);
  border-radius: 8px;
  border-left: 2px solid var(--accent-cyan);
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.project-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--accent-cyan);
  text-decoration: none;
  font-size: 13px;
  font-weight: 500;
  transition: gap 0.2s;
}

.project-link:hover { gap: 10px; }

/* ============================================
   表格（排行榜）
   ============================================ */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 24px;
  padding: 20px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  align-items: center;
}

.filter-bar select,
.filter-bar input {
  background: var(--bg-elevated);
  color: var(--text-primary);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px 14px;
  font-size: 14px;
  font-family: var(--font-body);
  outline: none;
  transition: border-color 0.2s;
}

.filter-bar select:focus,
.filter-bar input:focus {
  border-color: var(--border-bright);
}

.filter-bar label {
  font-size: 13px;
  color: var(--text-secondary);
  font-weight: 500;
}

.ranking-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0 8px;
}

.ranking-table th {
  text-align: left;
  padding: 12px 16px;
  color: var(--text-muted);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  font-weight: 600;
  font-family: var(--font-mono);
  border-bottom: 1px solid var(--border);
}

.ranking-table td {
  padding: 16px;
  background: var(--bg-card);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}

.ranking-table tr td:first-child {
  border-left: 1px solid var(--border);
  border-radius: 8px 0 0 8px;
}

.ranking-table tr td:last-child {
  border-right: 1px solid var(--border);
  border-radius: 0 8px 8px 0;
}

.ranking-table tr:hover td {
  background: var(--bg-elevated);
  border-color: var(--border-bright);
}

.ranking-table tr.top-row td {
  background: linear-gradient(90deg, rgba(255, 215, 0, 0.05), var(--bg-card));
}

.ranking-rank {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 900;
  color: var(--accent-cyan);
  text-align: center;
  width: 60px;
}

.ranking-table tr.top-row .ranking-rank { color: var(--accent-gold); }

.ranking-score {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 18px;
  color: var(--accent-green);
  text-align: center;
}

/* ============================================
   洞察卡片
   ============================================ */
.insight-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 24px;
  position: relative;
  overflow: hidden;
  transition: all 0.3s;
}

.insight-card::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 4px;
}

.insight-card.warn::before { background: var(--accent-orange); }
.insight-card.good::before { background: var(--accent-green); }
.insight-card.danger::before { background: var(--accent-red); }
.insight-card.info::before { background: var(--accent-cyan); }

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

.insight-title {
  font-weight: 700;
  color: var(--text-bright);
  margin-bottom: 8px;
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: 1px;
  font-family: var(--font-mono);
}

.insight-card.warn .insight-title { color: var(--accent-orange); }
.insight-card.good .insight-title { color: var(--accent-green); }
.insight-card.danger .insight-title { color: var(--accent-red); }
.insight-card.info .insight-title { color: var(--accent-cyan); }

.insight-content {
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.6;
}

/* ============================================
   数字徽章
   ============================================ */
.metric {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 16px;
  background: rgba(0, 0, 0, 0.2);
  border-radius: 10px;
  border: 1px solid var(--border);
}

.metric-value {
  font-family: var(--font-display);
  font-size: 28px;
  font-weight: 900;
  color: var(--accent-cyan);
  line-height: 1;
}

.metric-label {
  font-size: 11px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* ============================================
   章节标题
   ============================================ */
.section {
  margin-bottom: 64px;
}

.section-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 32px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
}

.section-title {
  font-family: var(--font-display);
  font-size: 28px;
  font-weight: 700;
  color: var(--text-bright);
  letter-spacing: -0.5px;
}

.section-subtitle {
  color: var(--text-secondary);
  font-size: 14px;
}

/* ============================================
   SVG 图表通用
   ============================================ */
.chart-container {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 32px;
  position: relative;
}

.chart-container svg {
  display: block;
  width: 100%;
  height: auto;
}

/* 横向条形图 */
.bar-row {
  display: grid;
  grid-template-columns: 120px 1fr 60px;
  gap: 12px;
  align-items: center;
  padding: 8px 0;
}

.bar-label {
  font-size: 13px;
  color: var(--text-secondary);
  text-align: right;
}

.bar-track {
  height: 24px;
  background: rgba(255, 255, 255, 0.04);
  border-radius: 4px;
  overflow: hidden;
  position: relative;
}

.bar-fill {
  height: 100%;
  border-radius: 4px;
  transition: width 1.2s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
}

.bar-fill::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  animation: shimmer 2s infinite;
}

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

.bar-value {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
}

/* ============================================
   四象限
   ============================================ */
.quadrant {
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: 1fr 1fr;
  gap: 2px;
  background: var(--border);
  border-radius: 16px;
  overflow: hidden;
  aspect-ratio: 1.4;
  position: relative;
}

.quadrant-cell {
  background: var(--bg-card);
  padding: 24px;
  position: relative;
  overflow: hidden;
}

.quadrant-cell.high { background: linear-gradient(135deg, rgba(0, 245, 160, 0.05), var(--bg-card)); }
.quadrant-cell.mid  { background: linear-gradient(135deg, rgba(0, 217, 255, 0.05), var(--bg-card)); }
.quadrant-cell.low  { background: linear-gradient(135deg, rgba(255, 107, 53, 0.05), var(--bg-card)); }
.quadrant-cell.bad  { background: linear-gradient(135deg, rgba(255, 51, 102, 0.05), var(--bg-card)); }

.quadrant-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 16px;
  margin-bottom: 8px;
  color: var(--text-bright);
}

.quadrant-desc {
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 12px;
  line-height: 1.5;
}

.quadrant-examples {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.quadrant-examples .tag {
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-primary);
  border: 1px solid var(--border);
}

/* ============================================
   分页
   ============================================ */
.pagination {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 32px;
}

.pagination button {
  background: var(--bg-card);
  color: var(--text-secondary);
  border: 1px solid var(--border);
  padding: 8px 14px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 14px;
  font-family: var(--font-mono);
  transition: all 0.2s;
}

.pagination button:hover:not(:disabled) {
  border-color: var(--border-bright);
  color: var(--accent-cyan);
}

.pagination button.active {
  background: var(--accent-cyan);
  color: var(--bg-deep);
  border-color: var(--accent-cyan);
  font-weight: 700;
}

.pagination button:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

/* ============================================
   加载与空状态
   ============================================ */
.loading {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 80px 0;
  color: var(--text-secondary);
  gap: 12px;
}

.loading-spinner {
  width: 32px;
  height: 32px;
  border: 2px solid var(--border);
  border-top-color: var(--accent-cyan);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

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

.empty {
  text-align: center;
  padding: 80px 0;
  color: var(--text-muted);
}

/* ============================================
   页脚
   ============================================ */
.footer {
  border-top: 1px solid var(--border);
  padding: 32px;
  text-align: center;
  color: var(--text-muted);
  font-size: 13px;
  margin-top: 80px;
}

.footer a {
  color: var(--accent-cyan);
  text-decoration: none;
}

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

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

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

::-webkit-scrollbar-thumb:hover {
  background: var(--border-bright);
}

/* ============================================
   动画延迟工具
   ============================================ */
.delay-1 { animation-delay: 0.1s; }
.delay-2 { animation-delay: 0.2s; }
.delay-3 { animation-delay: 0.3s; }
.delay-4 { animation-delay: 0.4s; }
.delay-5 { animation-delay: 0.5s; }
.delay-6 { animation-delay: 0.6s; }