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

body {
  font-family: "Microsoft YaHei", "SimHei", "Helvetica Neue", Arial, sans-serif;
  background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
  color: #eee;
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
}

#app {
  width: 100%;
  max-width: 900px;
  padding: 20px;
}

.screen {
  display: none;
  animation: fadeIn 0.3s ease;
}

.screen.active {
  display: block;
}

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

/* 主菜单 */
#main-menu {
  text-align: center;
  padding: 40px 20px;
}

#main-menu h1 {
  font-size: 3.5rem;
  margin-bottom: 10px;
  color: #d4a574;
  text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
  letter-spacing: 8px;
}

.menu-buttons {
  display: flex;
  flex-direction: column;
  gap: 16px;
  max-width: 320px;
  margin: 40px auto 0;
}

button {
  cursor: pointer;
  border: none;
  border-radius: 8px;
  font-size: 1rem;
  font-family: inherit;
  transition: all 0.2s;
}

.btn-primary {
  padding: 14px 28px;
  background: linear-gradient(135deg, #c84b31 0%, #a63a22 100%);
  color: white;
  font-size: 1.1rem;
  box-shadow: 0 4px 15px rgba(200, 75, 49, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(200, 75, 49, 0.4);
}

.btn-secondary {
  padding: 12px 24px;
  background: rgba(255,255,255,0.1);
  color: #ccc;
  border: 1px solid rgba(255,255,255,0.2);
}

.btn-secondary:hover {
  background: rgba(255,255,255,0.15);
}

.btn-small {
  padding: 8px 16px;
  background: rgba(255,255,255,0.1);
  color: #ccc;
  border: 1px solid rgba(255,255,255,0.2);
  font-size: 0.9rem;
}

.btn-small:hover {
  background: rgba(255,255,255,0.2);
}

.difficulty-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 8px;
  background: rgba(255,255,255,0.05);
  border-radius: 8px;
}

.difficulty-bar span {
  font-size: 0.9rem;
  color: #bbb;
}

.diff-btn {
  padding: 6px 12px;
  background: rgba(255,255,255,0.1);
  color: #ccc;
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 6px;
  font-size: 0.85rem;
}

.diff-btn.active {
  background: rgba(200, 75, 49, 0.3);
  border-color: #c84b31;
  color: #fff;
}

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

.toggle-label {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  font-size: 0.9rem;
  color: #bbb;
}

.toggle-label input {
  accent-color: #c84b31;
}

.setting-number-label {
  display: flex;
  align-items: center;
  gap: 6px;
  color: #bbb;
  font-size: 0.9rem;
}

.setting-number-label input {
  width: 64px;
  padding: 4px 6px;
  border-radius: 6px;
  border: 1px solid rgba(255,255,255,0.2);
  background: rgba(0,0,0,0.25);
  color: #eee;
  font-family: inherit;
}

.setting-number-label input:focus {
  outline: none;
  border-color: rgba(200, 75, 49, 0.6);
}

.header-actions {
  display: flex;
  gap: 8px;
}

/* 弹窗 */
.modal {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.7);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 100;
  opacity: 1;
  transition: opacity 0.3s;
}

.modal.hidden {
  display: none;
  opacity: 0;
}

.modal-content {
  background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 16px;
  padding: 32px 40px;
  text-align: center;
  max-width: 320px;
  width: 90%;
  box-shadow: 0 20px 60px rgba(0,0,0,0.5);
}

.modal-content h2 {
  font-size: 1.6rem;
  color: #d4a574;
  margin-bottom: 12px;
}

.modal-content p {
  color: #bbb;
  margin-bottom: 24px;
  font-size: 1rem;
}

.modal-actions {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

/* 禁止选中，优化触摸 */
#board-canvas {
  touch-action: none;
  user-select: none;
  -webkit-user-select: none;
}

body {
  overscroll-behavior: none;
  -webkit-tap-highlight-color: transparent;
}

/* 游戏界面 */
#game-screen {
  width: 100%;
}

.game-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
  padding: 0 8px;
}

#game-info {
  display: flex;
  gap: 20px;
  align-items: center;
}

#turn-indicator {
  font-size: 1.2rem;
  font-weight: bold;
  color: #d4a574;
}

#game-status {
  font-size: 1rem;
  color: #e74c3c;
}

.game-container {
  display: flex;
  gap: 20px;
  justify-content: center;
  flex-wrap: wrap;
}

#board-canvas {
  background: #e8c895;
  border-radius: 8px;
  box-shadow: 0 8px 32px rgba(0,0,0,0.4);
  max-width: 100%;
  height: auto;
}

.side-panel {
  display: flex;
  flex-direction: column;
  gap: 16px;
  min-width: 160px;
  max-height: 600px;
}

.panel-section {
  background: rgba(255,255,255,0.05);
  border-radius: 8px;
  padding: 10px 12px;
}

.panel-section h3 {
  font-size: 0.9rem;
  color: #aaa;
  margin-bottom: 8px;
}

.panel-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 6px;
}

.panel-header h3 {
  margin: 0;
}

.notation-scroll {
  max-height: 200px;
  overflow-y: auto;
  font-size: 0.85rem;
  line-height: 1.6;
  color: #ccc;
}

.notation-scroll::-webkit-scrollbar {
  width: 4px;
}

.notation-scroll::-webkit-scrollbar-thumb {
  background: rgba(255,255,255,0.2);
  border-radius: 2px;
}

.notation-move {
  display: flex;
  gap: 6px;
}

.notation-move .num {
  color: #888;
  min-width: 24px;
}

.notation-move .red-move {
  color: #e74c3c;
  min-width: 60px;
}

.notation-move .black-move {
  color: #3498db;
}

.captured-group h3 {
  font-size: 0.95rem;
  color: #aaa;
  margin-bottom: 8px;
}

.captured-list {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  min-height: 40px;
}

.captured-piece {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  font-weight: bold;
  border: 2px solid;
}

.captured-piece.red {
  background: #fff;
  color: #c84b31;
  border-color: #c84b31;
}

.captured-piece.black {
  background: #fff;
  color: #333;
  border-color: #333;
}

/* 联机界面 */
.lan-panel {
  max-width: 600px;
  margin: 0 auto;
  background: rgba(255,255,255,0.05);
  border-radius: 12px;
  padding: 24px;
}

.lan-panel h2 {
  text-align: center;
  margin: 16px 0 24px;
  color: #d4a574;
}

.lan-subpanel {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.lan-subpanel.hidden {
  display: none;
}

.lan-subpanel p {
  color: #bbb;
  font-size: 0.95rem;
}

.code-box {
  display: flex;
  gap: 8px;
}

.code-box textarea,
.lan-subpanel textarea {
  flex: 1;
  min-height: 80px;
  padding: 10px;
  border-radius: 6px;
  border: 1px solid rgba(255,255,255,0.2);
  background: rgba(0,0,0,0.3);
  color: #eee;
  font-family: monospace;
  font-size: 0.85rem;
  resize: vertical;
}

#lan-status {
  text-align: center;
  margin-top: 16px;
  min-height: 24px;
  color: #4ecc71;
}

/* 规则说明 */
.rules-panel {
  max-width: 600px;
  margin: 0 auto;
  background: rgba(255,255,255,0.05);
  border-radius: 12px;
  padding: 24px;
}

.rules-panel h2 {
  text-align: center;
  margin: 16px 0 24px;
  color: #d4a574;
}

.rules-content {
  line-height: 1.8;
}

.rules-content h3 {
  color: #d4a574;
  margin: 16px 0 8px;
}

.rules-content ul {
  margin-left: 20px;
}

.rules-content li {
  margin-bottom: 6px;
}

/* 响应式 */
@media (max-width: 640px) {
  #main-menu h1 {
    font-size: 2.2rem;
    letter-spacing: 4px;
  }

  .game-header {
    flex-wrap: wrap;
    gap: 8px;
  }

  .game-container {
    flex-direction: column;
    align-items: center;
  }

  #board-canvas {
    width: 100% !important;
    max-width: 360px;
    height: auto !important;
  }

  .side-panel {
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: center;
    max-height: none;
    width: 100%;
  }

  .panel-section {
    flex: 1;
    min-width: 140px;
  }

  .header-actions {
    gap: 4px;
    flex-wrap: wrap;
  }

  .btn-small {
    padding: 6px 10px;
    font-size: 0.8rem;
  }

  .timers {
    gap: 6px;
  }

  .timer {
    padding: 4px 8px;
    font-size: 0.85rem;
    min-width: 48px;
  }

  .puzzle-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .difficulty-bar,
  .theme-bar {
    flex-wrap: wrap;
  }
}

/* 追加样式 */
.header-actions {
  display: flex;
  gap: 8px;
}

/* 弹窗 */
.modal {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.7);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 100;
  opacity: 1;
  transition: opacity 0.3s;
}

.modal.hidden {
  display: none;
  opacity: 0;
}

.modal-content {
  background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 16px;
  padding: 32px 40px;
  text-align: center;
  max-width: 320px;
  width: 90%;
  box-shadow: 0 20px 60px rgba(0,0,0,0.5);
}

.modal-content h2 {
  font-size: 1.6rem;
  color: #d4a574;
  margin-bottom: 12px;
}

.modal-content p {
  color: #bbb;
  margin-bottom: 24px;
  font-size: 1rem;
}

.modal-actions {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

/* 禁止选中，优化触摸 */
#board-canvas {
  touch-action: none;
  user-select: none;
  -webkit-user-select: none;
}

body {
  overscroll-behavior: none;
  -webkit-tap-highlight-color: transparent;
}

/* 追加样式2 */
.board-wrapper {
  position: relative;
  display: inline-block;
}

.waiting-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.4);
  display: flex;
  justify-content: center;
  align-items: center;
  border-radius: 8px;
  z-index: 10;
  backdrop-filter: blur(2px);
}

.waiting-overlay.hidden {
  display: none;
}

.waiting-overlay span {
  color: #fff;
  font-size: 1.2rem;
  padding: 12px 24px;
  background: rgba(0,0,0,0.6);
  border-radius: 8px;
}

/* 追加样式3 - 棋谱回放 */
.notation-move span[data-index] {
  cursor: pointer;
  padding: 2px 4px;
  border-radius: 4px;
  transition: background 0.15s;
}

.notation-move span[data-index]:hover {
  background: rgba(255,255,255,0.15);
}

.notation-move .active {
  background: rgba(212, 165, 116, 0.3);
  font-weight: bold;
}

#review-overlay {
  flex-direction: column;
}

#review-overlay span {
  font-size: 1rem;
  margin-bottom: 4px;
}

/* 追加样式4 - 聊天 */
.chat-panel {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.chat-panel.hidden {
  display: none;
}

.chat-scroll {
  max-height: 140px;
  overflow-y: auto;
  font-size: 0.85rem;
  line-height: 1.5;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.chat-msg {
  padding: 4px 8px;
  border-radius: 6px;
  word-break: break-all;
}

.chat-msg.self {
  background: rgba(200, 75, 49, 0.2);
  align-self: flex-end;
}

.chat-msg.peer {
  background: rgba(255,255,255,0.08);
  align-self: flex-start;
}

.chat-msg.system {
  background: rgba(241, 196, 15, 0.1);
  align-self: center;
  font-size: 0.85rem;
  border: 1px solid rgba(241, 196, 15, 0.2);
}

.chat-msg .sender {
  font-size: 0.75rem;
  opacity: 0.7;
  margin-bottom: 2px;
}

.chat-input-row {
  display: flex;
  gap: 6px;
}

.chat-input-row input {
  flex: 1;
  padding: 6px 10px;
  border-radius: 6px;
  border: 1px solid rgba(255,255,255,0.2);
  background: rgba(0,0,0,0.3);
  color: #eee;
  font-size: 0.85rem;
  outline: none;
}

.chat-input-row input:focus {
  border-color: rgba(200, 75, 49, 0.5);
}

/* 追加样式5 - 计时器 */
.timers {
  display: flex;
  gap: 12px;
  align-items: center;
}

.timer {
  font-family: 'Courier New', monospace;
  font-size: 1rem;
  font-weight: bold;
  padding: 6px 12px;
  border-radius: 6px;
  background: rgba(0,0,0,0.3);
  border: 1px solid rgba(255,255,255,0.1);
  min-width: 60px;
  text-align: center;
}

.timer.active {
  border-color: #d4a574;
  background: rgba(212, 165, 116, 0.15);
}

.timer.danger {
  color: #e74c3c;
  animation: pulse 1s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.6; }
}

/* 追加样式6 - 历史记录 */
.history-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-height: 400px;
  overflow-y: auto;
}

.history-item {
  background: rgba(255,255,255,0.05);
  border-radius: 8px;
  padding: 12px;
  cursor: pointer;
  transition: background 0.15s;
}

.history-item:hover {
  background: rgba(255,255,255,0.1);
}

.history-meta {
  font-size: 0.85rem;
  color: #d4a574;
  margin-bottom: 4px;
}

.history-moves {
  font-size: 0.8rem;
  color: #aaa;
  font-family: monospace;
  white-space: pre-wrap;
  word-break: break-all;
}

/* 追加样式7 - 开场动画 */
.intro-screen {
  position: fixed;
  inset: 0;
  background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 1000;
  animation: introFadeOut 0.8s ease forwards;
  animation-delay: 1.8s;
}

.intro-content {
  text-align: center;
  animation: introScale 1.5s ease;
}

.intro-piece {
  width: 80px;
  height: 80px;
  margin: 0 auto 20px;
  border-radius: 50%;
  background: #fff;
  border: 3px solid #c84b31;
  color: #c84b31;
  font-size: 40px;
  font-weight: bold;
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
  box-shadow: 0 8px 32px rgba(200, 75, 49, 0.3);
  animation: introPiece 1.2s ease;
}

.intro-title {
  font-size: 2.5rem;
  color: #d4a574;
  letter-spacing: 12px;
  margin-bottom: 8px;
  text-shadow: 0 4px 20px rgba(0,0,0,0.5);
}

.intro-subtitle {
  font-size: 1rem;
  color: rgba(255,255,255,0.4);
  letter-spacing: 4px;
  text-transform: uppercase;
}

@keyframes introFadeOut {
  from { opacity: 1; }
  to { opacity: 0; visibility: hidden; }
}

@keyframes introScale {
  0% { opacity: 0; transform: scale(0.9) translateY(20px); }
  40% { opacity: 1; transform: scale(1) translateY(0); }
  100% { opacity: 1; transform: scale(1) translateY(0); }
}

@keyframes introPiece {
  0% { transform: scale(0) rotate(-180deg); opacity: 0; }
  60% { transform: scale(1.1) rotate(10deg); opacity: 1; }
  100% { transform: scale(1) rotate(0deg); opacity: 1; }
}

/* 追加样式8 - 主题切换 */
.theme-bar {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-top: 8px;
}

.theme-bar span {
  font-size: 0.85rem;
  color: #bbb;
}

.theme-btn {
  padding: 4px 10px;
  background: rgba(255,255,255,0.1);
  color: #ccc;
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 6px;
  font-size: 0.8rem;
  cursor: pointer;
}

.theme-btn.active {
  background: rgba(212, 165, 116, 0.3);
  border-color: #d4a574;
  color: #fff;
}

/* 追加样式9 - 残局选择 */
.puzzle-category {
  color: #d4a574;
  font-size: 1.1rem;
  margin: 16px 0 8px;
  padding-bottom: 6px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.puzzle-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 10px;
}

.puzzle-card {
  background: rgba(255,255,255,0.05);
  border-radius: 10px;
  padding: 14px;
  cursor: pointer;
  transition: all 0.2s;
  border: 1px solid rgba(255,255,255,0.08);
}

.puzzle-card:hover {
  background: rgba(255,255,255,0.1);
  transform: translateY(-2px);
  border-color: rgba(212, 165, 116, 0.3);
}

.puzzle-name {
  font-size: 1rem;
  font-weight: bold;
  color: #eee;
  margin-bottom: 4px;
}

.puzzle-stars {
  font-size: 0.85rem;
  color: #f1c40f;
  margin-bottom: 6px;
}

.puzzle-desc {
  font-size: 0.8rem;
  color: #999;
  line-height: 1.4;
}

/* 追加样式10 - 通用隐藏 */
.hidden {
  display: none !important;
}

/* 追加样式11 - 残局最佳成绩 */
.puzzle-best {
  color: #4ecc71;
  font-size: 0.8rem;
  margin-left: 6px;
}

.puzzle-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 4px;
}

.puzzle-delete-btn {
  background: transparent;
  border: none;
  color: #e74c3c;
  font-size: 1rem;
  cursor: pointer;
  padding: 2px 6px;
  border-radius: 4px;
  line-height: 1;
}

.puzzle-delete-btn:hover {
  background: rgba(231, 76, 60, 0.15);
}

/* 追加样式12 - AI观战控制 */
.ai-control {
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,255,255,0.05);
  padding: 4px 10px;
  border-radius: 8px;
}

.ai-control.hidden {
  display: none;
}

.ai-control input[type="range"] {
  width: 80px;
  accent-color: #d4a574;
}

.ai-control span {
  font-size: 0.8rem;
  color: #bbb;
  min-width: 32px;
}

/* 追加样式13 - 局面评估条 */
.eval-bar {
  position: relative;
  width: 120px;
  height: 22px;
  background: rgba(0,0,0,0.3);
  border-radius: 11px;
  overflow: hidden;
  border: 1px solid rgba(255,255,255,0.1);
}

.eval-fill {
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  background: linear-gradient(90deg, #3498db, #4ecc71);
  transition: width 0.3s, left 0.3s;
}

.eval-fill.negative {
  background: linear-gradient(90deg, #e74c3c, #3498db);
}

.eval-text {
  position: relative;
  z-index: 1;
  display: block;
  text-align: center;
  line-height: 22px;
  font-size: 0.8rem;
  font-weight: bold;
  color: #fff;
  text-shadow: 0 1px 2px rgba(0,0,0,0.5);
}

/* 追加样式14 - 让子选择 */
.handicap-btn {
  padding: 5px 10px;
  background: rgba(255,255,255,0.1);
  color: #ccc;
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 6px;
  font-size: 0.8rem;
  cursor: pointer;
}

.handicap-btn.active {
  background: rgba(78, 204, 113, 0.3);
  border-color: #4ecc71;
  color: #fff;
}

/* 追加样式15 - 摆盘模式 */
.editor-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.editor-title {
  font-size: 1.3rem;
  font-weight: bold;
  color: #d4a574;
}

.editor-header-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.editor-container {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.editor-container .board-wrapper {
  flex: 0 0 auto;
}

.editor-panel {
  flex: 1;
  min-width: 220px;
  max-width: 320px;
  background: rgba(255,255,255,0.05);
  border-radius: 12px;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.editor-section h4 {
  font-size: 0.9rem;
  color: #aaa;
  margin-bottom: 8px;
}

.editor-side-toggle {
  display: flex;
  gap: 8px;
}

.side-btn {
  flex: 1;
  padding: 8px;
  background: rgba(255,255,255,0.08);
  color: #ccc;
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 6px;
  font-size: 0.85rem;
  cursor: pointer;
}

.side-btn.active[data-side="red"] {
  background: rgba(200, 75, 49, 0.3);
  border-color: #c84b31;
  color: #fff;
}

.side-btn.active[data-side="black"] {
  background: rgba(52, 73, 94, 0.5);
  border-color: #3498db;
  color: #fff;
}

.editor-palette {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 6px;
}

.piece-brush {
  aspect-ratio: 1;
  border-radius: 6px;
  border: 1px solid rgba(255,255,255,0.15);
  background: rgba(255,255,255,0.05);
  color: #eee;
  font-size: 1rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  min-width: 0;
}

.piece-brush:hover {
  background: rgba(255,255,255,0.12);
}

.piece-brush.active {
  border-color: #f1c40f;
  background: rgba(241, 196, 15, 0.15);
}

.piece-brush.red {
  color: #e74c3c;
}

.piece-brush.black {
  color: #bdc3c7;
}

.erase-btn {
  width: 100%;
  padding: 8px;
  margin-top: 6px;
  background: rgba(255,255,255,0.08);
  color: #ccc;
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 6px;
  font-size: 0.85rem;
  cursor: pointer;
}

.erase-btn.active {
  border-color: #e74c3c;
  background: rgba(231, 76, 60, 0.15);
  color: #e74c3c;
}

.editor-validation {
  font-size: 0.8rem;
  min-height: 1.2em;
}

.editor-validation.error {
  color: #e74c3c;
}

.editor-validation.ok {
  color: #4ecc71;
}

/* 自定义残局卡片 */
.custom-puzzle-badge {
  display: inline-block;
  padding: 2px 6px;
  background: rgba(241, 196, 15, 0.2);
  color: #f1c40f;
  border-radius: 4px;
  font-size: 0.7rem;
  margin-left: 6px;
}

.delete-puzzle-btn {
  padding: 4px 8px;
  background: rgba(231, 76, 60, 0.2);
  color: #e74c3c;
  border: 1px solid rgba(231, 76, 60, 0.3);
  border-radius: 4px;
  font-size: 0.75rem;
  cursor: pointer;
  margin-left: 8px;
}

/* 复盘分析面板 */
.analysis-info {
  background: rgba(255,255,255,0.05);
  border-radius: 8px;
  padding: 10px;
  border: 1px solid rgba(255,255,255,0.1);
}

.analysis-score {
  font-size: 1.4rem;
  font-weight: bold;
  text-align: center;
  margin-bottom: 6px;
}

.analysis-score.red-adv {
  color: #e74c3c;
}

.analysis-score.black-adv {
  color: #3498db;
}

.analysis-score.even {
  color: #aaa;
}

.analysis-verdict {
  font-size: 0.9rem;
  text-align: center;
  color: #ccc;
  margin-bottom: 6px;
}

.analysis-suggestion {
  font-size: 0.85rem;
  color: #f1c40f;
  text-align: center;
  min-height: 1.2em;
}

.analysis-loading {
  text-align: center;
  font-size: 0.85rem;
  color: #aaa;
  margin-top: 6px;
  animation: pulse 1s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

/* 历史对局分析按钮 */
.history-actions {
  display: flex;
  gap: 6px;
  margin-top: 8px;
}

.history-actions .btn-small {
  font-size: 0.75rem;
  padding: 4px 10px;
}

/* 版本公告 */
.announcement-panel {
  max-width: 680px;
}

.announcement-current,
.announcement-item {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 8px;
  padding: 14px 16px;
  margin-top: 12px;
}

.announcement-current h3,
.announcement-history h3 {
  color: #d4a574;
  margin: 8px 0;
}

.announcement-version {
  display: inline-block;
  padding: 3px 8px;
  border-radius: 999px;
  background: rgba(212, 165, 116, 0.18);
  border: 1px solid rgba(212, 165, 116, 0.35);
  color: #f0d0a6;
  font-size: 0.82rem;
  font-weight: bold;
}

.announcement-current ul {
  margin: 8px 0 0 18px;
  line-height: 1.7;
  color: #ddd;
}

.announcement-item p {
  margin-top: 8px;
  line-height: 1.6;
  color: #bbb;
}