/* ===========================================
   KPOP猜偶像 - 精致UI
   配色：青蓝/紫粉渐变主基调 + 高对比度交互
   =========================================== */

:root {
  --green: #22c55e;
  --green-dark: #16a34a;
  --yellow: #eab308;
  --yellow-dark: #ca8a04;
  --gray: #94a3b8;
  --gray-dark: #64748b;

  --primary: #6366f1;          /* 主色：靛紫 */
  --primary-dark: #4f46e5;
  --primary-light: #a5b4fc;
  --accent: #ec4899;           /* 强调色：粉 */
  --accent-dark: #db2777;
  --cyan: #06b6d4;             /* 辅色：青 */
  --bg-white: #ffffff;
  --bg-soft: #f8fafc;
  --bg-card: rgba(255,255,255,0.85);

  --text-main: #1e293b;
  --text-sub: #64748b;
  --text-soft: #94a3b8;
  --border: #e2e8f0;
  --border-strong: #cbd5e1;

  --arrow-up: #38bdf8;
  --arrow-down: #fb923c;

  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.06);
  --shadow-md: 0 4px 12px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 10px 30px rgba(15, 23, 42, 0.12);
  --shadow-glow: 0 0 24px rgba(99, 102, 241, 0.35);
}

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

html, body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial, sans-serif;
  color: var(--text-main);
  min-height: 100vh;
  background:
    linear-gradient(135deg, #e0e7ff 0%, #fce7f3 50%, #cffafe 100%);
  background-attachment: fixed;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  background:
    radial-gradient(circle at 20% 10%, rgba(99, 102, 241, 0.18), transparent 40%),
    radial-gradient(circle at 80% 80%, rgba(236, 72, 153, 0.15), transparent 40%);
  pointer-events: none;
  z-index: -1;
}

/* ========== 通用隐藏类 ========== */
.hidden {
  display: none !important;
}

/* ========== 顶部导航 ========== */
.top-nav {
  position: sticky;
  top: 0;
  z-index: 50;
  padding: 12px 20px;
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: saturate(180%) blur(16px);
  -webkit-backdrop-filter: saturate(180%) blur(16px);
  border-bottom: 1px solid rgba(99, 102, 241, 0.15);
}
.nav-inner {
  max-width: 960px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}
.logo {
  font-size: 18px;
  font-weight: 800;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  white-space: nowrap;
}

.user-info {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
}
#nickname-display {
  font-weight: 800;
  color: var(--primary-dark);
  font-size: 15px;
}
#elo-display {
  padding: 4px 10px;
  background: linear-gradient(135deg, #6366f1, #ec4899);
  color: #fff;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
  box-shadow: 0 2px 8px rgba(99, 102, 241, 0.3);
}

.mode-tabs {
  display: flex;
  gap: 6px;
  background: rgba(255,255,255,0.5);
  padding: 4px;
  border-radius: 14px;
  border: 1px solid var(--border);
}
.mode-btn {
  background: transparent;
  border: none;
  padding: 8px 18px;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-sub);
  cursor: pointer;
  transition: all 0.2s;
}
.mode-btn:hover { color: var(--primary); }
.mode-btn.active {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  box-shadow: 0 4px 12px rgba(99, 102, 241, 0.35);
  transform: translateY(-1px);
}

/* ========== 主内容 ========== */
.main-container {
  max-width: 960px;
  margin: 24px auto;
  padding: 0 16px;
}

.status-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
  padding: 0 4px;
  font-size: 14px;
  color: var(--text-sub);
}
#mode-label {
  font-weight: 700;
  color: var(--primary-dark);
  font-size: 15px;
}
.guess-status {
  display: flex;
  gap: 8px;
  align-items: center;
}
#guess-counter {
  background: var(--bg-white);
  padding: 4px 12px;
  border-radius: 999px;
  border: 1px solid var(--border);
  font-weight: 600;
}
#giveup-btn {
  background: transparent;
  border: 1px solid var(--border-strong);
  color: var(--text-sub);
  padding: 4px 12px;
  border-radius: 999px;
  font-size: 13px;
  cursor: pointer;
  transition: all 0.2s;
}
#giveup-btn:hover { background: #fee2e2; color: #dc2626; border-color: #fca5a5; }

/* ========== 输入区 ========== */
.input-area {
  position: relative;
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
}
.autocomplete-wrap { position: relative; flex: 1; }
#guess-input, #pvp-guess-input {
  width: 100%;
  padding: 14px 18px;
  font-size: 16px;
  font-weight: 500;
  background: var(--bg-white);
  border: 2px solid var(--border);
  border-radius: 14px;
  outline: none;
  transition: all 0.2s;
  box-shadow: var(--shadow-sm);
}
#guess-input:focus, #pvp-guess-input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.15);
}
#guess-input:disabled, #pvp-guess-input:disabled {
  background: #f1f5f9;
  color: var(--text-soft);
  cursor: not-allowed;
}

.suggestions-list {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  margin-top: 4px;
  background: var(--bg-white);
  border-radius: 12px;
  box-shadow: var(--shadow-lg);
  list-style: none;
  z-index: 30;
  max-height: 280px;
  overflow-y: auto;
  border: 1px solid var(--border);
}
.suggestions-list li {
  padding: 10px 16px;
  cursor: pointer;
  font-size: 14px;
  transition: all 0.15s;
  border-bottom: 1px solid var(--border);
}
.suggestions-list li:last-child { border-bottom: none; }
.suggestions-list li:hover {
  background: linear-gradient(90deg, rgba(99,102,241,0.1), rgba(236,72,153,0.1));
  padding-left: 20px;
}

#guess-btn, #pvp-guess-btn {
  padding: 0 24px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  border: none;
  border-radius: 14px;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s;
  box-shadow: 0 4px 14px rgba(99, 102, 241, 0.4);
  white-space: nowrap;
}
#guess-btn:hover:not(:disabled), #pvp-guess-btn:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(99, 102, 241, 0.5);
}
#guess-btn:active, #pvp-guess-btn:active { transform: translateY(0); }
#guess-btn:disabled, #pvp-guess-btn:disabled {
  background: var(--gray);
  cursor: not-allowed;
  box-shadow: none;
}

/* ========== 猜测网格 ========== */
.guesses-container {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.grid-header, .guess-row {
  display: grid;
  grid-template-columns: 140px repeat(9, 1fr);
  gap: 6px;
}
.grid-header { margin-bottom: 6px; }

.header-cell {
  padding: 10px 4px;
  font-size: 12px;
  font-weight: 700;
  text-align: center;
  color: var(--text-sub);
  text-transform: uppercase;
  letter-spacing: 0.4px;
}
.header-cell.name-cell {
  text-align: left;
  padding-left: 12px;
}

.cell {
  position: relative;
  padding: 14px 6px;
  text-align: center;
  font-size: 13px;
  font-weight: 600;
  border-radius: 10px;
  color: #fff;
  transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
  animation: cellPop 0.4s ease-out;
  overflow: hidden;
  word-break: break-word;
  min-height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
}
@keyframes cellPop {
  0% { transform: scale(0.85) rotateX(15deg); opacity: 0; }
  60% { transform: scale(1.05) rotateX(0); opacity: 1; }
  100% { transform: scale(1) rotateX(0); }
}

.cell.correct {
  background: linear-gradient(135deg, var(--green), var(--green-dark));
  box-shadow: 0 2px 8px rgba(34, 197, 94, 0.3);
}
.cell.partial {
  background: linear-gradient(135deg, var(--yellow), var(--yellow-dark));
  color: #fff;
  box-shadow: 0 2px 8px rgba(234, 179, 8, 0.3);
}
.cell.wrong {
  background: linear-gradient(135deg, var(--gray), var(--gray-dark));
  box-shadow: 0 2px 8px rgba(100, 116, 139, 0.25);
}

.cell .arrow {
  font-weight: 900;
  font-size: 14px;
  margin-left: 2px;
}
.cell .arrow.up { color: var(--arrow-up); }
.cell .arrow.down { color: var(--arrow-down); }

.guess-row .name-cell {
  color: var(--text-main);
  font-weight: 700;
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: 10px;
  text-align: left;
  padding: 14px 12px;
  display: flex;
  align-items: center;
  font-size: 13px;
  box-shadow: var(--shadow-sm);
}

/* 对手面板：仅色块，文字隐藏 */
.board-col.opponent .cell .cell-text { display: none; }
.board-col.opponent .cell { color: transparent; }

/* ========== 结果覆盖层 ========== */
.overlay {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.6);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  animation: fadeIn 0.25s ease-out;
}
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

.overlay-content {
  background: linear-gradient(135deg, #fff 0%, #f8fafc 100%);
  border-radius: 24px;
  padding: 40px 32px;
  text-align: center;
  max-width: 380px;
  width: 90%;
  box-shadow: 0 20px 60px rgba(99, 102, 241, 0.2);
  animation: overlayPop 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
  border: 1px solid rgba(99, 102, 241, 0.1);
}
@keyframes overlayPop { from { transform: scale(0.85) translateY(20px); opacity: 0; } to { transform: scale(1) translateY(0); opacity: 1; } }
.overlay-content h2 {
  font-size: 26px;
  margin-bottom: 16px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  font-weight: 800;
}
.overlay-content p {
  color: var(--text-sub);
  margin-bottom: 8px;
  font-size: 15px;
  line-height: 1.6;
}
.overlay-content .answer-name {
  font-size: 18px;
  font-weight: 700;
  color: var(--primary-dark);
  margin-bottom: 24px;
  padding: 12px 20px;
  background: rgba(99, 102, 241, 0.08);
  border-radius: 12px;
  display: inline-block;
}
.overlay-buttons {
  display: flex;
  gap: 12px;
  justify-content: center;
  margin-top: 24px;
}
.overlay-buttons button {
  flex: 1;
  min-width: 120px;
}

/* ========== 底部栏 ========== */
.bottom-bar {
  margin: 32px auto 24px;
  padding: 12px 16px;
  display: flex;
  gap: 8px;
  justify-content: center;
  flex-wrap: wrap;
  max-width: 960px;
}
.text-btn {
  background: var(--bg-white);
  border: 1px solid var(--border);
  color: var(--text-sub);
  font-size: 13px;
  cursor: pointer;
  padding: 8px 16px;
  border-radius: 999px;
  transition: all 0.2s;
  font-weight: 500;
  box-shadow: var(--shadow-sm);
}
.text-btn:hover {
  color: var(--primary);
  border-color: var(--primary-light);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

/* ========== 弹窗 ========== */
.modal {
  position: fixed;
  inset: 0;
  z-index: 90;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  animation: fadeIn 0.2s;
}
.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(15, 23, 42, 0.4);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}
.modal-content {
  position: relative;
  background: var(--bg-white);
  border-radius: 20px;
  padding: 28px;
  max-width: 480px;
  width: 100%;
  max-height: 80vh;
  overflow-y: auto;
  z-index: 2;
  box-shadow: var(--shadow-lg);
  animation: overlayPop 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.modal-content.small { max-width: 360px; }
.modal-close {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 32px;
  height: 32px;
  background: #f1f5f9;
  border: none;
  border-radius: 50%;
  font-size: 18px;
  color: var(--text-sub);
  cursor: pointer;
  transition: all 0.2s;
}
.modal-close:hover {
  background: var(--accent);
  color: #fff;
  transform: rotate(90deg);
}
.modal-content h2 {
  margin-bottom: 16px;
  font-size: 20px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  font-weight: 800;
}

/* 玩法说明 */
.help-body p { margin-bottom: 10px; font-size: 14px; line-height: 1.6; color: var(--text-sub); }
.color-legend { margin: 12px 0; }
.color-legend div { display: flex; align-items: center; gap: 8px; margin: 6px 0; font-size: 14px; }
.legend-box { width: 18px; height: 18px; border-radius: 6px; display: inline-block; }
.legend-box.correct { background: linear-gradient(135deg, var(--green), var(--green-dark)); }
.legend-box.partial { background: linear-gradient(135deg, var(--yellow), var(--yellow-dark)); }
.legend-box.wrong   { background: linear-gradient(135deg, var(--gray), var(--gray-dark)); }

/* 排行榜 */
.leaderboard-body { font-size: 14px; }
.leaderboard-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 14px;
  margin-bottom: 6px;
  background: var(--bg-soft);
  border-radius: 10px;
  font-weight: 500;
}
.leaderboard-row strong { color: var(--primary-dark); font-size: 16px; }

/* 世代筛选列表 */
.generation-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin: 16px 0;
}
.generation-list label {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 14px 16px;
  background: linear-gradient(135deg, #f8fafc, #f1f5f9);
  border: 2px solid transparent;
  border-radius: 12px;
  cursor: pointer;
  font-size: 15px;
  font-weight: 600;
  transition: all 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
  user-select: none;
  position: relative;
  overflow: hidden;
}
.generation-list label::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), rgba(236, 72, 153, 0.1));
  opacity: 0;
  transition: opacity 0.2s;
}
.generation-list label:hover {
  border-color: var(--primary-light);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(99, 102, 241, 0.15);
}
.generation-list label:hover::before { opacity: 1; }
.generation-list input[type="checkbox"] {
  accent-color: var(--primary);
  width: 18px;
  height: 18px;
  cursor: pointer;
}
.generation-list label:active {
  transform: scale(0.97);
}

/* 筛选提示 */
.filter-hint {
  font-size: 13px;
  color: var(--text-sub);
  margin-bottom: 12px;
  padding: 10px 14px;
  background: rgba(99, 102, 241, 0.05);
  border-radius: 8px;
  line-height: 1.5;
}

/* PVP 菜单 */
.pvp-menu, .pvp-room { text-align: center; }
.pvp-menu button { margin: 8px 0; width: 100%; }
.or-divider { margin: 12px 0; color: var(--text-sub); font-size: 13px; }
#room-code-input {
  width: 100%;
  padding: 12px;
  border: 2px solid var(--border);
  border-radius: 12px;
  font-size: 15px;
  text-align: center;
  letter-spacing: 4px;
  font-weight: 600;
  outline: none;
  transition: all 0.2s;
}
#room-code-input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.15);
}
#room-code-display {
  font-size: 24px;
  font-weight: 800;
  letter-spacing: 4px;
  color: var(--primary-dark);
  background: var(--bg-soft);
  padding: 12px;
  border-radius: 12px;
  margin: 8px 0;
}

/* 通用按钮 */
.primary-btn {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  border: none;
  padding: 12px 24px;
  border-radius: 12px;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s;
  box-shadow: 0 4px 14px rgba(99, 102, 241, 0.4);
}
.primary-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(99, 102, 241, 0.5);
}
.primary-btn:active { transform: translateY(0); }

.secondary-btn {
  background: var(--bg-white);
  color: var(--text-sub);
  border: 2px solid var(--border);
  padding: 12px 24px;
  border-radius: 12px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
}
.secondary-btn:hover {
  border-color: var(--primary-light);
  color: var(--primary);
  background: rgba(99, 102, 241, 0.05);
}

#nickname-input {
  width: 100%;
  padding: 12px 16px;
  font-size: 15px;
  border: 2px solid var(--border);
  border-radius: 12px;
  outline: none;
  margin-bottom: 12px;
  transition: all 0.2s;
}
#nickname-input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.15);
}

/* ========== PVP 对战面板 ========== */
#pvp-board {
  max-width: 1200px;
  margin: 24px auto;
  padding: 0 16px;
}
.board-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
  padding: 16px 20px;
  background: var(--bg-white);
  border-radius: 16px;
  box-shadow: var(--shadow-md);
}
.player-panel {
  flex: 1;
  text-align: center;
  padding: 8px 16px;
  background: var(--bg-soft);
  border-radius: 12px;
}
.player-name { font-size: 13px; color: var(--text-sub); }
.player-score {
  font-size: 28px;
  font-weight: 800;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.match-info { text-align: center; padding: 0 20px; }
.match-round { font-size: 13px; color: var(--text-sub); }
.match-timer {
  font-size: 22px;
  font-weight: 800;
  color: var(--primary-dark);
  font-variant-numeric: tabular-nums;
}

.pvp-input-area {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
}
.pvp-input-area .autocomplete-wrap { flex: 1; }

.board-body {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.board-col {
  background: var(--bg-card);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-radius: 16px;
  padding: 16px;
  box-shadow: var(--shadow-md);
}
.board-col .col-title {
  font-size: 14px;
  font-weight: 700;
  color: var(--primary-dark);
  margin-bottom: 12px;
  text-align: center;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--border);
}
.board-col.opponent .col-title { color: var(--accent-dark); }

.board-col .grid-header,
.board-col .guess-row {
  grid-template-columns: 90px repeat(9, 1fr);
  gap: 4px;
}
.board-col .cell { font-size: 11px; padding: 10px 4px; min-height: 40px; }
.board-col .name-cell { font-size: 12px; padding: 10px 6px; }

/* ========== 响应式：平板 ========== */
@media (max-width: 768px) {
  .top-nav { padding: 10px 14px; }
  .nav-inner { flex-wrap: wrap; gap: 8px; justify-content: center; }
  .logo { font-size: 16px; }
  .mode-tabs { flex-wrap: wrap; justify-content: center; }
  .mode-btn { padding: 6px 12px; font-size: 13px; }
  .user-info { font-size: 12px; }

  .main-container { margin: 16px auto; padding: 0 12px; }

  .grid-header, .guess-row {
    grid-template-columns: 90px repeat(9, 1fr);
    gap: 4px;
  }
  .header-cell { font-size: 10px; padding: 8px 2px; }
  .cell { font-size: 11px; padding: 10px 3px; min-height: 40px; }
  .name-cell { font-size: 11px; padding: 10px 6px; }

  .board-body { grid-template-columns: 1fr; }

  /* 弹窗近全屏 */
  .modal { padding: 0; }
  .modal-content {
    max-width: 100%;
    width: 100%;
    max-height: 100vh;
    border-radius: 0;
    padding: 20px 16px;
  }
  .overlay-content { max-width: 100%; width: 100%; padding: 24px 20px; border-radius: 0; }
}

/* ========== 响应式：手机 ========== */
@media (max-width: 480px) {
  .top-nav { padding: 8px 10px; }
  .nav-inner {
    flex-direction: column;
    align-items: stretch;
    gap: 6px;
  }
  .logo { text-align: center; font-size: 15px; }
  .mode-tabs {
    width: 100%;
    justify-content: center;
    flex-wrap: nowrap;
  }
  .mode-btn { flex: 1; padding: 7px 6px; font-size: 12px; }
  .user-info {
    justify-content: center;
    font-size: 11px;
    gap: 8px;
  }

  .main-container { margin: 12px auto; padding: 0 8px; }

  .status-bar {
    font-size: 12px;
    flex-wrap: wrap;
    gap: 6px;
    justify-content: center;
  }
  #mode-label { font-size: 14px; }

  /* 输入区触摸友好 */
  .input-area { gap: 6px; flex-wrap: nowrap; }
  #guess-input, #pvp-guess-input {
    padding: 12px 14px;
    font-size: 16px; /* >=16px 防止 iOS 缩放 */
    border-radius: 12px;
  }
  #guess-btn, #pvp-guess-btn {
    padding: 12px 16px;
    font-size: 14px;
    border-radius: 12px;
  }

  /* 9属性格：横向滚动 + 最小宽度保证可读 */
  .grid-header,
  .guesses-container {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    padding-bottom: 4px;
  }
  .grid-header, .guess-row {
    min-width: 520px;
    grid-template-columns: 80px repeat(9, 1fr);
    gap: 3px;
  }
  .header-cell { font-size: 9px; padding: 6px 1px; letter-spacing: 0; }
  .cell { font-size: 10px; padding: 8px 2px; min-height: 36px; line-height: 1.25; }
  .cell .arrow { font-size: 11px; }
  .name-cell { font-size: 10px; padding: 8px 4px; }

  /* 底部栏 */
  .bottom-bar { margin: 20px auto 16px; gap: 6px; padding: 8px 10px; }
  .text-btn { padding: 7px 12px; font-size: 12px; }

  /* PVP 面板 */
  #pvp-board { padding: 0 8px; margin: 12px auto; }
  .board-header { padding: 12px 10px; gap: 8px; }
  .player-panel { padding: 6px 8px; }
  .player-score { font-size: 22px; }
  .match-info { padding: 0 8px; }
  .match-timer { font-size: 18px; }
  .pvp-input-area { gap: 6px; }
  .board-col { padding: 10px; }
  .board-col .grid-header,
  .board-col .guess-row {
    min-width: 320px;
    grid-template-columns: 70px repeat(9, 1fr);
  }
  .board-col .cell { font-size: 9px; padding: 8px 2px; min-height: 34px; }
  .board-col .name-cell { font-size: 10px; padding: 8px 4px; }
}

/* ========== 响应式：超小屏 ========== */
@media (max-width: 360px) {
  .mode-btn { font-size: 11px; padding: 6px 4px; }
  .grid-header, .guess-row { min-width: 460px; }
  .cell { font-size: 9px; }
}