/* 全局样式 */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: "KaiTi", "楷体", serif;
  background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
  color: #f0e6d2;
  min-height: 100vh;
  overflow-x: hidden;
}

#game-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 20px;
}

/* 游戏标题 */
.game-header {
  text-align: center;
  padding: 30px 0;
  background: linear-gradient(to bottom, rgba(139, 69, 19, 0.3), transparent);
  border-bottom: 2px solid #8b4513;
  margin-bottom: 30px;
}

.game-header h1 {
  font-size: 3em;
  color: #ffd700;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
  margin-bottom: 10px;
  letter-spacing: 8px;
}

.subtitle {
  font-size: 1.2em;
  color: #d4af37;
  font-style: italic;
}

/* 屏幕切换 */
.screen {
  display: none;
  animation: fadeIn 0.5s ease-in;
}

.screen.active {
  display: block;
}

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

/* 主菜单 */
.menu-content {
  text-align: center;
  padding: 50px 20px;
}

.menu-content h2 {
  font-size: 2em;
  color: #ffd700;
  margin-bottom: 50px;
}

.menu-buttons {
  display: flex;
  flex-direction: column;
  gap: 20px;
  max-width: 500px;
  margin: 0 auto;
}

.menu-btn {
  background: linear-gradient(135deg, #8b4513 0%, #654321 100%);
  border: 2px solid #d4af37;
  padding: 25px;
  border-radius: 10px;
  cursor: pointer;
  transition: all 0.3s ease;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  color: #f0e6d2;
}

.menu-btn:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 20px rgba(212, 175, 55, 0.3);
  border-color: #ffd700;
}

.menu-btn.primary {
  background: linear-gradient(135deg, #b8860b 0%, #8b6914 100%);
}

.btn-icon {
  font-size: 3em;
}

.btn-text {
  font-size: 1.5em;
  font-weight: bold;
}

.btn-desc {
  font-size: 0.9em;
  color: #d4af37;
}

/* 屏幕头部 */
.screen-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px;
  background: rgba(139, 69, 19, 0.3);
  border-radius: 10px;
  margin-bottom: 20px;
}

.screen-header h2 {
  color: #ffd700;
  font-size: 2em;
}

.back-btn {
  background: #654321;
  border: 2px solid #8b4513;
  color: #f0e6d2;
  padding: 10px 20px;
  border-radius: 5px;
  cursor: pointer;
  transition: all 0.3s ease;
}

.back-btn:hover {
  background: #8b4513;
  border-color: #d4af37;
}

/* 技能过滤器 */
.skill-filter {
  display: flex;
  gap: 10px;
  margin-bottom: 20px;
  justify-content: center;
}

.filter-btn {
  background: #654321;
  border: 2px solid #8b4513;
  color: #f0e6d2;
  padding: 10px 20px;
  border-radius: 5px;
  cursor: pointer;
  transition: all 0.3s ease;
}

.filter-btn:hover,
.filter-btn.active {
  background: #8b4513;
  border-color: #d4af37;
}

/* 技能卡牌网格 */
.skill-cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
  padding: 20px;
}

/* 技能卡牌 */
.skill-card {
  background: linear-gradient(135deg, #2c1810 0%, #1a0f08 100%);
  border: 3px solid #8b4513;
  border-radius: 15px;
  padding: 20px;
  cursor: pointer;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.skill-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 5px;
  background: linear-gradient(90deg, #ffd700, #d4af37, #ffd700);
}

.skill-card:hover {
  transform: translateY(-10px) scale(1.05);
  box-shadow: 0 15px 30px rgba(212, 175, 55, 0.4);
  border-color: #ffd700;
}

.skill-card.military::before {
  background: linear-gradient(90deg, #dc143c, #8b0000, #dc143c);
}
.skill-card.politics::before {
  background: linear-gradient(90deg, #4169e1, #000080, #4169e1);
}
.skill-card.culture::before {
  background: linear-gradient(90deg, #32cd32, #006400, #32cd32);
}

.skill-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 15px;
}

.skill-name {
  font-size: 1.3em;
  font-weight: bold;
  color: #ffd700;
}

.skill-rarity {
  color: #ffd700;
  font-size: 1.2em;
}

.skill-category {
  display: inline-block;
  padding: 5px 10px;
  background: rgba(212, 175, 55, 0.2);
  border-radius: 5px;
  font-size: 0.9em;
  color: #d4af37;
  margin-bottom: 10px;
}

.skill-description {
  font-size: 0.95em;
  line-height: 1.6;
  color: #f0e6d2;
  margin-bottom: 15px;
  min-height: 60px;
}

.skill-cost {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 10px;
}

.cost-item {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 0.9em;
  color: #ff6b6b;
}

.skill-effect {
  font-size: 0.9em;
  color: #90ee90;
  padding: 10px;
  background: rgba(144, 238, 144, 0.1);
  border-radius: 5px;
  margin-top: 10px;
}

/* 状态栏 */
.status-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: rgba(139, 69, 19, 0.3);
  padding: 20px;
  border-radius: 10px;
  margin-bottom: 20px;
}

.resource-display {
  display: flex;
  gap: 30px;
}

.resource-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 5px;
}

.resource-icon {
  font-size: 2em;
}

.resource-label {
  font-size: 0.9em;
  color: #d4af37;
}

.resource-value {
  font-size: 1.5em;
  font-weight: bold;
  color: #ffd700;
}

.turn-info {
  font-size: 1.3em;
  color: #ffd700;
}

/* 剧情面板 */
.story-panel {
  background: linear-gradient(135deg, #2c1810 0%, #1a0f08 100%);
  border: 3px solid #8b4513;
  border-radius: 15px;
  padding: 30px;
  margin-bottom: 20px;
  min-height: 300px;
}

.story-content h3 {
  color: #ffd700;
  font-size: 1.8em;
  margin-bottom: 20px;
  text-align: center;
}

.story-content p {
  font-size: 1.1em;
  line-height: 1.8;
  color: #f0e6d2;
  text-indent: 2em;
}

.story-choices {
  margin-top: 30px;
  display: flex;
  flex-direction: column;
  gap: 15px;
}

.choice-btn {
  background: linear-gradient(135deg, #654321 0%, #4a3219 100%);
  border: 2px solid #8b4513;
  padding: 15px 20px;
  border-radius: 10px;
  color: #f0e6d2;
  cursor: pointer;
  transition: all 0.3s ease;
  text-align: left;
  font-size: 1.05em;
}

.choice-btn:hover {
  background: linear-gradient(135deg, #8b4513 0%, #654321 100%);
  border-color: #d4af37;
  transform: translateX(10px);
}

/* 手牌区 */
.hand-area {
  margin-bottom: 20px;
}

.hand-area h4 {
  color: #ffd700;
  font-size: 1.3em;
  margin-bottom: 15px;
  text-align: center;
}

.hand-cards {
  display: flex;
  gap: 15px;
  overflow-x: auto;
  padding: 20px;
  background: rgba(0, 0, 0, 0.3);
  border-radius: 10px;
}

.hand-card {
  min-width: 200px;
  flex-shrink: 0;
}

/* 操作按钮 */
.action-buttons {
  display: flex;
  gap: 20px;
  justify-content: center;
}

.action-btn {
  background: linear-gradient(135deg, #b8860b 0%, #8b6914 100%);
  border: 2px solid #d4af37;
  color: #f0e6d2;
  padding: 15px 40px;
  border-radius: 10px;
  font-size: 1.1em;
  cursor: pointer;
  transition: all 0.3s ease;
}

.action-btn:hover {
  transform: scale(1.05);
  box-shadow: 0 5px 15px rgba(212, 175, 55, 0.4);
}

.action-btn.secondary {
  background: linear-gradient(135deg, #654321 0%, #4a3219 100%);
}

/* 弹窗 */
.modal {
  display: none;
  position: fixed;
  z-index: 1000;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.8);
  animation: fadeIn 0.3s ease-in;
}

.modal.active {
  display: flex;
  justify-content: center;
  align-items: center;
}

.modal-content {
  background: linear-gradient(135deg, #2c1810 0%, #1a0f08 100%);
  border: 3px solid #d4af37;
  border-radius: 15px;
  padding: 40px;
  max-width: 800px;
  max-height: 90vh;
  overflow-y: auto;
  position: relative;
  animation: slideIn 0.3s ease-out;
}

@keyframes slideIn {
  from {
    transform: translateY(-50px);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

.close {
  position: absolute;
  right: 20px;
  top: 20px;
  font-size: 2em;
  color: #d4af37;
  cursor: pointer;
  transition: color 0.3s ease;
}

.close:hover {
  color: #ffd700;
}

/* 教程内容 */
.tutorial-content h2 {
  color: #ffd700;
  font-size: 2em;
  margin-bottom: 30px;
  text-align: center;
}

.tutorial-section {
  margin-bottom: 30px;
  padding: 20px;
  background: rgba(139, 69, 19, 0.2);
  border-radius: 10px;
}

.tutorial-section h3 {
  color: #d4af37;
  font-size: 1.5em;
  margin-bottom: 15px;
}

.tutorial-section p,
.tutorial-section li {
  font-size: 1.05em;
  line-height: 1.8;
  color: #f0e6d2;
}

.tutorial-section ul {
  list-style-position: inside;
  padding-left: 20px;
}

.tutorial-section li {
  margin-bottom: 10px;
}

/* 技能详情 */
#skill-detail {
  color: #f0e6d2;
}

#skill-detail h2 {
  color: #ffd700;
  font-size: 2em;
  margin-bottom: 20px;
  text-align: center;
}

.skill-detail-section {
  margin-bottom: 20px;
  padding: 15px;
  background: rgba(139, 69, 19, 0.2);
  border-radius: 10px;
}

.skill-detail-section h3 {
  color: #d4af37;
  margin-bottom: 10px;
}

.shiji-quote {
  background: rgba(0, 0, 0, 0.3);
  padding: 20px;
  border-left: 4px solid #d4af37;
  margin: 20px 0;
  font-style: italic;
  color: #d4af37;
}

.use-skill-btn {
  width: 100%;
  background: linear-gradient(135deg, #b8860b 0%, #8b6914 100%);
  border: 2px solid #d4af37;
  color: #f0e6d2;
  padding: 15px;
  border-radius: 10px;
  font-size: 1.2em;
  cursor: pointer;
  margin-top: 20px;
  transition: all 0.3s ease;
}

.use-skill-btn:hover {
  transform: scale(1.05);
  box-shadow: 0 5px 15px rgba(212, 175, 55, 0.4);
}

.use-skill-btn:disabled {
  background: #555;
  border-color: #777;
  cursor: not-allowed;
  opacity: 0.5;
}

/* 响应式设计 */
@media (max-width: 768px) {
  .game-header h1 {
    font-size: 2em;
    letter-spacing: 4px;
  }

  .resource-display {
    flex-wrap: wrap;
    gap: 15px;
  }

  .skill-cards-grid {
    grid-template-columns: 1fr;
  }

  .hand-cards {
    flex-direction: column;
  }

  .hand-card {
    min-width: auto;
  }
}