body {
  font-family: 'Montserrat', Arial, sans-serif;
  margin: 0;
  background: #f7f8fa;
  color: #222;
}

header {
  background: #fff;
  box-shadow: 0 2px 8px rgba(0,0,0,0.04);
  position: sticky;
  top: 0;
  z-index: 10;
}
.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1100px;
  margin: 0 auto;
  padding: 1rem 2rem;
}
.logo {
  font-weight: 700;
  font-size: 1.5rem;
  letter-spacing: 2px;
  color: #2b6cb0;
}
.nav-links {
  list-style: none;
  display: flex;
  gap: 2rem;
  margin: 0;
  padding: 0;
}
.nav-links a {
  text-decoration: none;
  color: #222;
  font-weight: 500;
  transition: color 0.2s;
}
.nav-links a:hover {
  color: #2b6cb0;
}
.hero {
  text-align: center;
  padding: 4rem 1rem 3rem 1rem;
  background: linear-gradient(90deg, #e0e7ff 0%, #fff 100%);
}
.hero h1 {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
}
.hero p {
  font-size: 1.2rem;
  margin-bottom: 2rem;
}
.cta-btn {
  display: inline-block;
  background: #2b6cb0;
  color: #fff;
  padding: 0.8rem 2rem;
  border-radius: 2rem;
  font-weight: 600;
  text-decoration: none;
  transition: background 0.2s;
}
.cta-btn:hover {
  background: #234e8c;
}
.about, .info {
  max-width: 900px;
  margin: 3rem auto;
  background: #fff;
  border-radius: 1.2rem;
  box-shadow: 0 2px 16px rgba(44,62,80,0.06);
  padding: 2rem 1.5rem;
}
.about h2, .info h2, .types-preview h2 {
  color: #2b6cb0;
  font-size: 2rem;
  margin-bottom: 1rem;
}
.types-preview {
  max-width: 1100px;
  margin: 3rem auto;
  padding: 2rem 1.5rem;
}
.types-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}
.type-card {
  background: #fff;
  border-radius: 1rem;
  box-shadow: 0 2px 12px rgba(44,62,80,0.07);
  padding: 1.5rem 1rem;
  text-align: center;
  transition: transform 0.15s, box-shadow 0.15s;
  cursor: pointer;
}
.type-card:hover {
  transform: translateY(-6px) scale(1.03);
  box-shadow: 0 6px 24px rgba(44,62,80,0.13);
}
.type-card .type-name {
  font-size: 1.3rem;
  font-weight: 700;
  color: #234e8c;
  margin-bottom: 0.5rem;
}
.type-card .type-desc {
  font-size: 1rem;
  color: #555;
}
.info-list {
  padding-left: 1.2rem;
}
.info-list li {
  margin-bottom: 0.7rem;
  font-size: 1.05rem;
}
footer {
  text-align: center;
  color: #888;
  font-size: 1rem;
  padding: 2rem 0 1rem 0;
  background: none;
}
@media (max-width: 600px) {
  .navbar {
    flex-direction: column;
    gap: 1rem;
    padding: 1rem 0.5rem;
  }
  .about, .info, .types-preview {
    padding: 1rem 0.5rem;
  }
  .hero h1 {
    font-size: 1.5rem;
  }
  .types-grid {
    grid-template-columns: 1fr;
  }
}
/* 模态框样式 */
#typeModal {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  display: none;
  z-index: 1000;
}
.modal-backdrop {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(44, 62, 80, 0.25);
  backdrop-filter: blur(2px);
}
.modal-content {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  background: #fff;
  border-radius: 1.2rem;
  box-shadow: 0 8px 32px rgba(44,62,80,0.18);
  padding: 2rem 2.5rem 1.5rem 2.5rem;
  min-width: 260px;
  max-width: 90vw;
  text-align: center;
  animation: modalIn 0.18s cubic-bezier(.4,2,.6,1) both;
}
.modal-content h3 {
  margin-top: 0;
  color: #2b6cb0;
  font-size: 1.6rem;
  font-weight: 700;
}
.modal-content p {
  color: #444;
  font-size: 1.1rem;
  margin: 1rem 0 0 0;
}
.modal-close {
  position: absolute;
  top: 1rem;
  right: 1.5rem;
  font-size: 1.5rem;
  color: #aaa;
  cursor: pointer;
  transition: color 0.2s;
}
.modal-close:hover {
  color: #2b6cb0;
}
@keyframes modalIn {
  0% { opacity: 0; transform: translate(-50%, -60%) scale(0.95); }
  100% { opacity: 1; transform: translate(-50%, -50%) scale(1); }
}

/* 网站地图页面样式 */
.sitemap-content {
  max-width: 1100px;
  margin: 0 auto;
  padding: 2rem 1.5rem;
}

.sitemap-section {
  margin-bottom: 3rem;
}

.sitemap-section h2 {
  color: #2b6cb0;
  font-size: 1.8rem;
  margin-bottom: 1.5rem;
  border-bottom: 2px solid #e9ecef;
  padding-bottom: 0.5rem;
}

.sitemap-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  margin-bottom: 2rem;
}

.sitemap-item {
  background: #fff;
  border-radius: 1rem;
  padding: 1.5rem;
  box-shadow: 0 2px 12px rgba(44,62,80,0.07);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.sitemap-item:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 20px rgba(44,62,80,0.12);
}

.sitemap-item h3 {
  color: #2b6cb0;
  margin-bottom: 1rem;
  font-size: 1.3rem;
}

.sitemap-item h3 a {
  color: inherit;
  text-decoration: none;
  transition: color 0.2s;
}

.sitemap-item h3 a:hover {
  color: #1a4a8c;
}

.sitemap-item p {
  color: #555;
  margin-bottom: 1rem;
  line-height: 1.6;
}

.sitemap-item ul {
  list-style: none;
  padding: 0;
}

.sitemap-item ul li {
  color: #666;
  margin-bottom: 0.5rem;
  padding-left: 1rem;
  position: relative;
}

.sitemap-item ul li:before {
  content: "•";
  color: #2b6cb0;
  position: absolute;
  left: 0;
  font-weight: bold;
}

.quick-links {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
}

.quick-link-group h3 {
  color: #2b6cb0;
  margin-bottom: 1rem;
  font-size: 1.2rem;
}

.quick-link-group ul {
  list-style: none;
  padding: 0;
}

.quick-link-group ul li {
  margin-bottom: 0.8rem;
}

.quick-link-group ul li a {
  color: #495057;
  text-decoration: none;
  transition: color 0.2s;
  display: inline-block;
  padding: 0.3rem 0;
}

.quick-link-group ul li a:hover {
  color: #2b6cb0;
  transform: translateX(5px);
}

.contact-info {
  background: #f8f9fa;
  padding: 2rem;
  border-radius: 1rem;
  border-left: 4px solid #2b6cb0;
}

.contact-info p {
  margin-bottom: 0.8rem;
  color: #495057;
}

.contact-info strong {
  color: #2b6cb0;
}

/* 网站地图页面响应式优化 */
@media (max-width: 768px) {
  .sitemap-grid {
    grid-template-columns: 1fr;
  }
  
  .quick-links {
    grid-template-columns: 1fr;
  }
  
  .sitemap-content {
    padding: 1rem;
  }
  
  .sitemap-item {
    padding: 1rem;
  }
}

/* 游戏页面样式 */
.game {
  max-width: 1100px;
  margin: 3rem auto;
  background: #fff;
  border-radius: 1.2rem;
  box-shadow: 0 2px 16px rgba(44,62,80,0.06);
  padding: 2rem 1.5rem;
}

.game-container {
  margin-top: 2rem;
  text-align: center;
}

.game-btn {
  display: inline-block;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: #fff;
  padding: 1rem 2rem;
  border-radius: 2rem;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.3s ease;
  border: none;
  cursor: pointer;
  font-size: 1.1rem;
}

.game-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(102, 126, 234, 0.3);
}

.game-intro h3,
.game-question h3,
.game-result h3 {
  color: #2b6cb0;
  margin-bottom: 1rem;
}

.game-options {
  margin: 2rem 0;
}

.game-score {
  font-size: 1.2rem;
  font-weight: 600;
  color: #28a745;
  margin-top: 1rem;
}

/* 计时器页面样式 */
.timer {
  max-width: 1100px;
  margin: 3rem auto;
  background: #fff;
  border-radius: 1.2rem;
  box-shadow: 0 2px 16px rgba(44,62,80,0.06);
  padding: 2rem 1.5rem;
}

.timer-container {
  margin-top: 2rem;
  text-align: center;
}

.timer-display {
  font-size: 3rem;
  font-weight: 700;
  color: #2b6cb0;
  margin: 2rem 0;
  font-family: 'Courier New', monospace;
}

.timer-controls {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
  margin: 2rem 0;
}

.timer-btn {
  padding: 0.8rem 1.5rem;
  border: none;
  border-radius: 1.5rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  font-size: 1rem;
}

.timer-btn.start {
  background: #28a745;
  color: #fff;
}

.timer-btn.stop {
  background: #dc3545;
  color: #fff;
}

.timer-btn.reset {
  background: #6c757d;
  color: #fff;
}

.timer-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

.timer-inputs {
  margin-top: 2rem;
  padding: 1.5rem;
  background: #f8f9fa;
  border-radius: 1rem;
}

.timer-inputs label {
  display: block;
  margin-bottom: 1rem;
  font-weight: 600;
  color: #495057;
}

.timer-inputs input {
  width: 80px;
  padding: 0.5rem;
  margin: 0 0.5rem;
  border: 1px solid #dee2e6;
  border-radius: 0.5rem;
  text-align: center;
}

/* 页脚样式 */
footer {
  background: #2c3e50;
  color: #ecf0f1;
  padding: 3rem 0 1rem 0;
  margin-top: 4rem;
}

.footer-content {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  padding: 0 2rem;
}

.footer-section h3 {
  color: #3498db;
  margin-bottom: 1rem;
  font-size: 1.2rem;
}

.footer-section ul {
  list-style: none;
  padding: 0;
}

.footer-section ul li {
  margin-bottom: 0.5rem;
}

.footer-section a {
  color: #bdc3c7;
  text-decoration: none;
  transition: color 0.2s;
}

.footer-section a:hover {
  color: #3498db;
}

.footer-bottom {
  text-align: center;
  margin-top: 2rem;
  padding-top: 2rem;
  border-top: 1px solid #34495e;
  color: #95a5a6;
}

/* 响应式优化 */
@media (max-width: 768px) {
  .footer-content {
    grid-template-columns: 1fr;
    text-align: center;
    padding: 0 1rem;
  }
  
  .timer-display {
    font-size: 2rem;
  }
  
  .timer-controls {
    flex-direction: column;
    align-items: center;
  }
  
  .timer-btn {
    width: 200px;
  }
  
  .favorite-btn {
    padding: 0.5rem 1rem;
    font-size: 0.8rem;
  }
  
  .bookmark-icon {
    width: 16px;
    height: 16px;
  }
}

/* 性能优化 */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* 打印样式 */
@media print {
  .navbar, .favorite-btn, .game, .timer {
    display: none;
  }
  
  body {
    background: white;
    color: black;
  }
}