/* ====== 排行榜页面 ====== */
#page-leaderboard {
  background: var(--bg-primary);
}

/* Tab 切换 */
.lb-tabs {
  display: flex;
  gap: 0;
  padding: 0 12px;
  margin-bottom: 8px;
}

.lb-tab {
  flex: 1;
  padding: 8px 0;
  font-size: 13px;
  font-weight: 700;
  color: var(--text-muted);
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  cursor: pointer;
  transition: color 0.2s, border-color 0.2s;
  text-align: center;
}

.lb-tab:active {
  opacity: 0.7;
}

.lb-tab-active {
  color: var(--accent-cyan, #00f0ff);
  border-bottom-color: var(--accent-cyan, #00f0ff);
}

/* 参与人数 */
.lb-participants-row {
  text-align: center;
  font-size: 11px;
  color: var(--text-muted);
  padding: 0 12px 4px;
}

.lb-countdown {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  font-size: 12px;
  color: var(--text-muted);
  padding-bottom: 4px;
}

.countdown-time {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--accent-red);
}

/* 奖励展示 */
.lb-rewards {
  display: flex;
  justify-content: center;
  gap: 16px;
  padding: 10px 12px;
  margin: 0 12px 8px;
  background: linear-gradient(135deg, rgba(0, 240, 255, 0.08), rgba(184, 77, 255, 0.08));
  border: 1px solid rgba(0, 240, 255, 0.2);
  border-radius: var(--radius-md);
}

.lb-reward-item {
  display: flex;
  align-items: center;
  gap: 6px;
}

.lb-rank {
  font-size: 20px;
}

.lb-reward-val {
  font-size: 14px;
  font-weight: 800;
  font-family: var(--font-mono);
  color: var(--accent-gold);
}

/* 榜单列表 */
.lb-list {
  flex: 1;
  overflow-y: auto;
  padding: 0 12px 8px;
}

.lb-row {
  display: grid;
  grid-template-columns: 40px 1fr 50px 60px;
  align-items: center;
  gap: 4px;
  padding: 10px 8px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  margin-bottom: 6px;
  transition: var(--transition-fast);
}

.lb-row-me {
  border-color: var(--accent-gold);
  background: rgba(0, 240, 255, 0.08);
}

.lb-row-virtual {
  opacity: 0.75;
}

.lb-rank-cell {
  text-align: center;
}

.lb-rank-medal {
  font-size: 22px;
}

.lb-rank-num {
  font-size: 15px;
  font-weight: 800;
  font-family: var(--font-mono);
  color: var(--text-secondary);
}

.lb-user-cell {
  display: flex;
  align-items: center;
  gap: 6px;
  min-width: 0;
}

.lb-user-info {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.lb-user-name {
  font-size: 14px;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.lb-username {
  font-size: 11px;
  color: var(--text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.lb-virtual-tag {
  font-size: 9px;
  font-weight: 800;
  color: var(--accent-blue);
  background: rgba(77, 124, 255, 0.15);
  padding: 1px 4px;
  border-radius: 3px;
  flex-shrink: 0;
}

.lb-me-tag {
  font-size: 9px;
  font-weight: 800;
  color: var(--accent-gold);
  background: rgba(0, 240, 255, 0.15);
  padding: 1px 4px;
  border-radius: 3px;
  flex-shrink: 0;
}

.lb-invite-cell {
  text-align: center;
  font-size: 15px;
  font-weight: 800;
  font-family: var(--font-mono);
  color: var(--text-primary);
}

.lb-reward-cell {
  text-align: right;
}

.lb-reward-cell .lb-reward-val {
  font-size: 12px;
  font-weight: 700;
}

/* 我的排名固定底栏 */
.lb-my-rank {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  font-size: 13px;
  color: var(--text-secondary);
  flex-shrink: 0;
}

.lb-my-pos {
  font-size: 18px;
  font-weight: 900;
  font-family: var(--font-mono);
  color: var(--accent-gold);
}

.lb-my-invites {
  font-weight: 800;
  font-family: var(--font-mono);
  color: var(--text-primary);
}

/* 小屏幕适配（≤360px） */
@media (max-width: 360px) {
  .lb-tabs {
    padding: 0 8px;
  }

  .lb-tab {
    font-size: 12px;
    padding: 6px 0;
  }

  .lb-rewards {
    gap: 10px;
    padding: 8px 8px;
    margin: 0 8px 6px;
  }

  .lb-rank { font-size: 16px; }
  .lb-reward-val { font-size: 12px; }

  .lb-list {
    padding: 0 8px 6px;
  }

  .lb-row {
    grid-template-columns: 32px 1fr 40px 50px;
    padding: 8px 6px;
    gap: 3px;
    margin-bottom: 4px;
  }

  .lb-rank-medal { font-size: 18px; }
  .lb-rank-num { font-size: 13px; }
  .lb-user-name { font-size: 12px; }

  .lb-my-rank {
    padding: 10px 10px;
    font-size: 12px;
  }

  .lb-my-pos { font-size: 16px; }
}

/* 超小屏幕（≤320px） */
@media (max-width: 320px) {
  .lb-row {
    grid-template-columns: 28px 1fr 36px 44px;
    padding: 6px 4px;
  }

  .lb-rank-medal { font-size: 16px; }
  .lb-rank-num { font-size: 12px; }
  .lb-user-name { font-size: 11px; }
  .lb-virtual-tag, .lb-me-tag { font-size: 8px; }
}