:root {
  --bg-primary: #0a0e27;
  --bg-secondary: #131836;
  --bg-card: #1a2040;
  --bg-card-hover: #222855;
  --accent: #6c5ce7;
  --accent-light: #a29bfe;
  --accent-glow: rgba(108, 92, 231, 0.3);
  --gold: #ffd700;
  --gold-dim: rgba(255, 215, 0, 0.15);
  --green: #00e676;
  --green-dim: rgba(0, 230, 118, 0.15);
  --red: #ff5252;
  --red-dim: rgba(255, 82, 82, 0.15);
  --text-primary: #e8e8f0;
  --text-secondary: #8888aa;
  --text-muted: #555577;
  --border: rgba(255,255,255,0.06);
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 4px 24px rgba(0,0,0,0.4);
}

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

html, body {
  font-family: -apple-system, 'PingFang SC', 'Helvetica Neue', 'Microsoft YaHei', sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-tap-highlight-color: transparent;
  user-select: none;
}

/* ===== 顶部导航 ===== */
.top-bar {
  position: sticky; top:0; z-index:100;
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 20px;
  background: rgba(10,14,39,0.92);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}
.top-bar .logo {
  font-size: 18px; font-weight: 700;
  background: linear-gradient(135deg, var(--accent-light), var(--gold));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
}
.top-bar .date-badge {
  font-size: 12px; color: var(--text-secondary);
  background: var(--bg-card); border-radius: 20px;
  padding: 4px 12px;
}

/* ===== Tab 切换 ===== */
.tab-bar {
  display: flex; gap: 4px;
  padding: 8px 16px;
  background: var(--bg-secondary);
  position: sticky; top: 56px; z-index: 99;
}
.tab-btn {
  flex:1; padding: 10px 0; border: none; border-radius: var(--radius-sm);
  background: transparent; color: var(--text-secondary);
  font-size: 14px; font-weight: 600; cursor: pointer;
  transition: all .25s;
}
.tab-btn.active {
  background: var(--accent); color: #fff;
  box-shadow: 0 2px 12px var(--accent-glow);
}

/* ===== 页面容器 ===== */
.page { display:none; padding: 16px 16px 80px; }
.page.active { display:block; animation: fadeUp .3s ease; }
@keyframes fadeUp {
  from { opacity:0; transform:translateY(12px); }
  to { opacity:1; transform:translateY(0); }
}

/* ===== 昨日回顾卡片 ===== */
.review-hero {
  background: linear-gradient(135deg, #1e1555, #0d2847);
  border-radius: var(--radius); padding: 24px 20px;
  margin-bottom: 16px; position: relative; overflow: hidden;
}
.review-hero::before {
  content:''; position:absolute; top:-40px; right:-40px;
  width:120px; height:120px; border-radius:50%;
  background: var(--accent-glow); filter: blur(40px);
}
.review-hero .label { font-size:12px; color:var(--text-secondary); margin-bottom:8px; }
.review-hero .rate {
  font-size: 48px; font-weight: 800; line-height:1.1;
  background: linear-gradient(135deg, var(--gold), #ff9800);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
}
.review-hero .sub { font-size:13px; color:var(--text-secondary); margin-top:8px; }

.star-row { display:flex; gap:4px; margin-top:10px; }
.star-row .star { font-size:20px; color:var(--text-muted); }
.star-row .star.lit { color:var(--gold); filter: drop-shadow(0 0 4px rgba(255,215,0,0.5)); }

/* 命中详情 */
.hit-detail {
  background: var(--bg-card); border-radius: var(--radius);
  padding: 16px; margin-bottom: 12px;
}
.hit-detail .hd { font-size:14px; font-weight:600; margin-bottom:12px; color:var(--text-secondary); }
.hit-group {
  display:flex; flex-wrap:wrap; gap:8px; margin-bottom:8px;
}
.hit-tag {
  font-size:12px; padding:5px 10px; border-radius:8px;
  font-weight:600;
}
.hit-tag.hit { background:var(--green-dim); color:var(--green); }
.hit-tag.miss { background:var(--red-dim); color:var(--red); }
.hit-tag.skip { background:rgba(255,255,255,0.05); color:var(--text-muted); }

/* 没选但大涨 */
.missed-gold {
  background: var(--gold-dim); border-radius: var(--radius);
  padding: 14px 16px; margin-bottom: 12px;
  border: 1px solid rgba(255,215,0,0.15);
}
.missed-gold .hd { font-size:13px; color:var(--gold); font-weight:600; margin-bottom:8px; }
.missed-item {
  font-size:12px; color:var(--text-secondary); margin-bottom:4px;
}
.missed-item strong { color:var(--gold); }

/* ===== 今日选股 ===== */
.countdown-bar {
  text-align:center; padding:16px; margin-bottom:16px;
  background: var(--bg-card); border-radius:var(--radius);
}
.countdown-bar .time {
  font-size:32px; font-weight:800; letter-spacing:2px;
  color: var(--accent-light); font-variant-numeric: tabular-nums;
}
.countdown-bar .hint { font-size:12px; color:var(--text-muted); margin-top:4px; }

.progress-bar {
  display:flex; align-items:center; gap:10px;
  padding:0 4px; margin-bottom:20px;
}
.progress-bar .fill-track {
  flex:1; height:6px; background:var(--bg-card); border-radius:3px; overflow:hidden;
}
.progress-bar .fill-track .fill-inner {
  height:100%; border-radius:3px;
  background: linear-gradient(90deg, var(--accent), var(--gold));
  transition: width .4s ease;
}
.progress-bar .label { font-size:12px; color:var(--text-secondary); white-space:nowrap; }

/* 选股组卡片 */
.group-card {
  background: var(--bg-card); border-radius: var(--radius);
  padding: 18px 16px; margin-bottom: 14px;
  border: 1px solid var(--border);
  transition: border-color .3s;
}
.group-card.completed { border-color: rgba(0,230,118,0.2); }
.group-header {
  display:flex; align-items:center; justify-content:space-between;
  margin-bottom: 14px;
}
.group-header .theme {
  font-size:16px; font-weight:700;
}
.group-header .theme-icon { margin-right:6px; }
.group-header .count {
  font-size:12px; color:var(--text-muted);
  background:rgba(255,255,255,0.05); border-radius:12px;
  padding:2px 10px;
}
.group-header .count.done { background:var(--green-dim); color:var(--green); }
.group-desc {
  font-size:12px; color:var(--text-muted); margin-bottom:12px;
}

.stocks-grid {
  display:grid; grid-template-columns:1fr 1fr; gap:8px;
}
.stocks-grid .stock-item:last-child:nth-child(odd) {
  grid-column: 1 / -1; max-width:50%; justify-self:center;
}

.stock-item {
  position:relative; border-radius:var(--radius-sm);
  background:rgba(255,255,255,0.03); border:2px solid transparent;
  padding:12px 14px; cursor:pointer;
  transition: all .25s ease;
}
.stock-item:active { transform:scale(0.96); }
.stock-item.selected {
  border-color: var(--accent);
  background: rgba(108,92,231,0.1);
  box-shadow: 0 0 20px var(--accent-glow);
}
.stock-item .code { font-size:11px; color:var(--text-muted); }
.stock-item .name { font-size:15px; font-weight:600; margin-top:2px; }
.stock-item .close { font-size:11px; color:var(--text-secondary); margin-top:4px; }
.stock-item .check {
  position:absolute; top:8px; right:8px;
  width:22px; height:22px; border-radius:50%;
  border:2px solid var(--text-muted);
  display:flex; align-items:center; justify-content:center;
  transition: all .25s;
}
.stock-item.selected .check {
  border-color:var(--accent); background:var(--accent);
}
.stock-item.selected .check::after {
  content:'✓'; color:#fff; font-size:12px; font-weight:700;
}

/* 提交按钮 */
.submit-area {
  position:fixed; bottom:0; left:0; right:0;
  padding:12px 20px; padding-bottom: calc(12px + env(safe-area-inset-bottom));
  background: rgba(10,14,39,0.95); backdrop-filter:blur(12px);
  border-top:1px solid var(--border);
  z-index:100; display:none;
}
.submit-area.show { display:block; }
.submit-btn {
  width:100%; padding:14px; border:none; border-radius:var(--radius-sm);
  font-size:16px; font-weight:700; cursor:pointer;
  transition: all .25s;
}
.submit-btn.disabled {
  background:var(--bg-card); color:var(--text-muted);
}
.submit-btn.enabled {
  background:linear-gradient(135deg, var(--accent), #8b5cf6);
  color:#fff; box-shadow:0 4px 20px var(--accent-glow);
}
.submit-btn.enabled:active { transform:scale(0.97); }

/* ===== 战绩中心 ===== */
.stat-cards {
  display:grid; grid-template-columns:1fr 1fr 1fr; gap:10px;
  margin-bottom:20px;
}
.stat-card {
  background:var(--bg-card); border-radius:var(--radius-sm);
  padding:14px 10px; text-align:center;
}
.stat-card .val {
  font-size:22px; font-weight:800;
}
.stat-card .val.green { color:var(--green); }
.stat-card .val.gold { color:var(--gold); }
.stat-card .val.accent { color:var(--accent-light); }
.stat-card .lbl { font-size:11px; color:var(--text-muted); margin-top:4px; }

/* 图表区域 */
.chart-section {
  background:var(--bg-card); border-radius:var(--radius);
  padding:16px; margin-bottom:14px;
}
.chart-section .hd {
  font-size:14px; font-weight:600; margin-bottom:12px; color:var(--text-secondary);
}
.bar-chart { display:flex; align-items:flex-end; gap:6px; height:120px; padding-top:10px; }
.bar-chart .bar-col {
  flex:1; display:flex; flex-direction:column; align-items:center; gap:4px;
}
.bar-chart .bar {
  width:100%; border-radius:4px 4px 0 0;
  min-height:4px; transition:height .4s ease;
}
.bar-chart .bar.green { background:var(--green); }
.bar-chart .bar.red { background:var(--red); }
.bar-chart .bar-date { font-size:9px; color:var(--text-muted); }

/* 成就墙 */
.achievement-grid {
  display:grid; grid-template-columns:repeat(4,1fr); gap:10px;
  margin-bottom:14px;
}
.ach-item {
  text-align:center; padding:12px 4px;
  background:var(--bg-card); border-radius:var(--radius-sm);
  opacity:.35; transition: all .3s;
}
.ach-item.unlocked { opacity:1; }
.ach-item .icon { font-size:24px; margin-bottom:4px; }
.ach-item .label { font-size:10px; color:var(--text-secondary); line-height:1.3; }

/* 排行榜 */
.rank-section {
  background:var(--bg-card); border-radius:var(--radius);
  padding:16px; margin-bottom:14px;
}
.rank-section .hd {
  font-size:14px; font-weight:600; margin-bottom:12px; color:var(--text-secondary);
}
.rank-item {
  display:flex; align-items:center; gap:10px;
  padding:10px 0; border-bottom:1px solid var(--border);
}
.rank-item:last-child { border:none; }
.rank-item .rank-num {
  width:24px; font-size:14px; font-weight:700; text-align:center;
}
.rank-item .rank-num.gold { color:var(--gold); }
.rank-item .rank-num.silver { color:#c0c0c0; }
.rank-item .rank-num.bronze { color:#cd7f32; }
.rank-item .rank-name { flex:1; font-size:14px; }
.rank-item .rank-rate { font-size:14px; font-weight:700; color:var(--green); }
.rank-item .is-me { font-size:10px; color:var(--accent-light); }

/* ===== 空状态 ===== */
.empty-state {
  text-align:center; padding:60px 20px; color:var(--text-muted);
}
.empty-state .icon { font-size:48px; margin-bottom:12px; opacity:.4; }
.empty-state .text { font-size:14px; }

/* ===== 加载 ===== */
.loading {
  display:flex; justify-content:center; padding:40px;
}
.spinner {
  width:32px; height:32px; border:3px solid var(--border);
  border-top-color:var(--accent); border-radius:50%;
  animation:spin .8s linear infinite;
}
@keyframes spin { to { transform:rotate(360deg); } }

/* ===== Toast ===== */
.toast {
  position:fixed; top:80px; left:50%; transform:translateX(-50%) translateY(-20px);
  background:var(--bg-card); color:var(--text-primary);
  padding:10px 24px; border-radius:24px; font-size:13px;
  box-shadow:var(--shadow); z-index:999;
  opacity:0; transition:all .3s; pointer-events:none;
  border:1px solid var(--border);
}
.toast.show { opacity:1; transform:translateX(-50%) translateY(0); }

/* ===== 弹窗 ===== */
.modal-overlay {
  position:fixed; inset:0; background:rgba(0,0,0,0.7);
  z-index:200; display:none; align-items:center; justify-content:center;
  padding:20px;
}
.modal-overlay.show { display:flex; }
.modal-box {
  background:var(--bg-secondary); border-radius:var(--radius);
  padding:28px 24px; max-width:340px; width:100%; text-align:center;
  animation: fadeUp .3s ease;
}
.modal-box .icon { font-size:48px; margin-bottom:12px; }
.modal-box .title { font-size:18px; font-weight:700; margin-bottom:8px; }
.modal-box .desc { font-size:13px; color:var(--text-secondary); margin-bottom:20px; line-height:1.6; }
.modal-box .btn-row { display:flex; gap:10px; }
.modal-box .btn-row button {
  flex:1; padding:12px; border:none; border-radius:var(--radius-sm);
  font-size:14px; font-weight:600; cursor:pointer;
}
.modal-box .btn-cancel { background:var(--bg-card); color:var(--text-secondary); }
.modal-box .btn-confirm {
  background:linear-gradient(135deg,var(--accent),#8b5cf6);
  color:#fff;
}

/* ===== 历史记录 ===== */
.history-list { margin-bottom:14px; }
.history-item {
  background:var(--bg-card); border-radius:var(--radius-sm);
  padding:14px 16px; margin-bottom:8px;
  display:flex; align-items:center; justify-content:space-between;
}
.history-item .date { font-size:13px; color:var(--text-secondary); }
.history-item .result { font-size:14px; font-weight:700; }
.history-item .result.good { color:var(--green); }
.history-item .result.bad { color:var(--red); }

/* ===== 难度模式 ===== */
.mode-toggle {
  display:flex; gap:6px; margin-bottom:16px; justify-content:center;
}
.mode-btn {
  padding:6px 14px; border-radius:20px; border:1px solid var(--border);
  background:transparent; color:var(--text-muted); font-size:12px;
  cursor:pointer; transition:all .25s;
}
.mode-btn.active {
  border-color:var(--accent); color:var(--accent-light);
  background:rgba(108,92,231,0.1);
}

/* ===== 底部免责 ===== */
.disclaimer {
  text-align:center; font-size:10px; color:var(--text-muted);
  padding:16px 20px 24px; line-height:1.6;
}