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

body {
  font-family: 'Noto Sans SC', sans-serif;
  line-height: 1.6;
  color: #333;
  background: #f8f9fa;
}

.container {
  width: 90%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 15px;
}

/* Header */
header {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  padding: 20px 0;
  z-index: 1000;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: white;
  text-shadow: 0 2px 4px rgba(0,0,0,0.3);
}

nav a {
  color: white;
  text-decoration: none;
  margin-left: 20px;
  font-weight: 500;
  transition: opacity 0.3s;
}

nav a:hover {
  opacity: 0.8;
}

/* Banner */
.banner {
  height: 80vh;
  max-height: 800px;
  position: relative;
  overflow: hidden;
}
.banner-slide {
  position: absolute;
  width: 100%;
  height: 100%;
  opacity: 0;
  transition: opacity 1s ease-in-out;
}

.banner-slide.active {
  opacity: 1;
  /* transform: scale(1); */
}

.banner-slide h2 {
  font-size: 3rem;
  margin-bottom: 1rem;
  text-shadow: 0 2px 8px rgba(0,0,0,0.5);
}

.banner-slide p {
  font-size: 1.5rem;
  max-width: 800px;
}

.banner-indicators {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 10px;
}

.indicator {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: rgba(255,255,255,0.5);
  cursor: pointer;
  transition: background 0.3s;
}

.indicator.active {
  background: white;
}
.banner-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-size: cover;
  background-position: center;
  z-index: -1;
}

/* 遮罩层，让文字更清晰 */
.banner-slide::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.4);
  z-index: 1;
}

.banner-content {
  position: relative;
  z-index: 2;
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 0 5%;
  text-align: center;
  color: white;
}

.banner-content h2 {
  font-size: 3.5rem;
  margin-bottom: 1rem;
  text-shadow: 0 2px 8px rgba(0,0,0,0.8);
  font-weight: 700;
}

.banner-content p {
  font-size: 1.5rem;
  max-width: 800px;
  text-shadow: 0 1px 4px rgba(0,0,0,0.8);
}

.banner-indicators {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 10px;
  z-index: 3;
}

.indicator {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: rgba(255,255,255,0.5);
  cursor: pointer;
  transition: background 0.3s;
}

.indicator.active {
  background: white;
}

/* 响应式优化 */
@media (max-width: 768px) {
  .banner {
    height: 60vh;
  }
  .banner-content h2 {
    font-size: 2.2rem;
  }
  .banner-content p {
    font-size: 1.2rem;
  }
}


/* Download CTA */
.download-cta {
  text-align: center;
  padding: 60px 0;
  background: #2c3e50;
  color: white;
}

.download-cta h3 {
  font-size: 2.2rem;
  margin-bottom: 15px;
}

.download-cta p {
  font-size: 1.1rem;
  margin-bottom: 25px;
}

.download-btn {
  background: #e74c3c;
  color: white;
  border: none;
  padding: 15px 40px;
  font-size: 1.2rem;
  font-weight: 700;
  border-radius: 50px;
  cursor: pointer;
  transition: all 0.3s;
  box-shadow: 0 4px 15px rgba(231, 76, 60, 0.4);
}

.download-btn:hover {
  background: #c0392b;
  transform: translateY(-3px);
  box-shadow: 0 6px 20px rgba(231, 76, 60, 0.6);
}

.download-btn.large {
  padding: 20px 60px;
  font-size: 1.4rem;
}

.stats {
  margin-top: 20px;
  font-size: 0.9rem;
  opacity: 0.9;
}

/* Games Section */
.games-section {
  padding: 80px 0;
  background: white;
}

.games-section h2 {
  text-align: center;
  font-size: 2.5rem;
  margin-bottom: 50px;
  color: #2c3e50;
}

.games-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
}

.game-card {
  background: white;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 5px 15px rgba(0,0,0,0.1);
  transition: transform 0.3s, box-shadow 0.3s;
}

.game-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 15px 30px rgba(0,0,0,0.15);
}

.game-header {
  padding: 0;
  position: relative;
  border-radius: 12px 12px 0 0;
  overflow: hidden;
}

.game-cover {
  width: 100%;
  height: 160px;
  object-fit: cover;
  display: block;
}

.game-header h3 {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  padding: 15px 20px;
  background: rgba(0,0,0,0.7);
  color: white;
  margin: 0;
  font-size: 1.25rem;
  text-align: center;
  backdrop-filter: blur(2px);
}

.game-body {
  padding: 25px 20px;
  text-align: center;
}

.game-body p {
  margin-bottom: 20px;
  color: #555;
  font-size: 0.95rem;
}

.play-btn {
  background: #3498db;
  color: white;
  border: none;
  padding: 10px 25px;
  border-radius: 30px;
  cursor: pointer;
  font-weight: 600;
  transition: background 0.3s;
}

.play-btn:hover {
  background: #2980b9;
}

/* ========== 统计数字动画 ========== */
.stats-section {
  padding: 60px 0;
  background: #2c3e50;
  color: white;
  text-align: center;
}

.stats-grid {
  display: flex;
  justify-content: space-around;
  flex-wrap: wrap;
  gap: 30px;
}

.stat-item {
  text-align: center;
}

.stat-item .number {
  font-size: 3rem;
  font-weight: 700;
  color: #f39c12;
  line-height: 1;
  margin-bottom: 10px;
  font-family: 'Courier New', monospace;
}

.stat-item .label {
  font-size: 1.1rem;
  opacity: 0.9;
}

/* Features */
.features {
  padding: 80px 0;
  background: #f1f8ff;
}

.features h2 {
  text-align: center;
  font-size: 2.5rem;
  margin-bottom: 50px;
  color: #2c3e50;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px;
}

.feature-item {
  text-align: center;
  padding: 30px 20px;
  background: white;
  border-radius: 12px;
  box-shadow: 0 5px 15px rgba(0,0,0,0.05);
  transition: transform 0.3s;
}

.feature-item:hover {
  transform: translateY(-5px);
}

.icon {
  font-size: 3rem;
  margin-bottom: 15px;
}

.feature-item h4 {
  font-size: 1.3rem;
  margin-bottom: 10px;
  color: #2c3e50;
}

/* Final CTA */
.final-cta {
  padding: 80px 0;
  background: linear-gradient(135deg, #e74c3c, #c0392b);
  color: white;
  text-align: center;
}

.final-cta h2 {
  font-size: 2rem;
  margin-bottom: 40px;
}

/* Footer */
footer {
  background: #1a1a1a;
  color: #ccc;
  padding: 40px 0 20px;
  text-align: center;
}

footer a {
  color: #ddd;
  text-decoration: none;
}

footer a:hover {
  text-decoration: underline;
}

footer p {
  margin: 10px 0;
}

/* 响应式设计 */
@media (max-width: 768px) {
  .banner-slide h2 {
    font-size: 2rem;
  }
  .banner-slide p {
    font-size: 1.1rem;
  }
  .games-section h2,
  .features h2 {
    font-size: 2rem;
  }
  .download-btn {
    padding: 12px 30px;
    font-size: 1rem;
  }
  nav {
    display: none;
  }
  .stats-grid {
    flex-direction: column;
    align-items: center;
  }
  .stat-item .number {
    font-size: 2.5rem;
  }
}