/* iPhone 15 外观模拟 */
.iphone-frame {
  width: 430px;
  height: 932px;
  background: linear-gradient(145deg, #1a1a1a, #2a2a2a);
  border-radius: 50px;
  box-shadow: 
    0 8px 32px rgba(0,0,0,0.3),
    inset 0 1px 0 rgba(255,255,255,0.1);
  padding: 16px;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.notch {
  position: absolute;
  top: 12px;
  left: 50%;
  transform: translateX(-50%);
  width: 120px;
  height: 30px;
  background: #000;
  border-radius: 20px;
  z-index: 10;
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.1);
}

.screen {
  width: 398px;
  height: 900px;
  position: relative;
  z-index: 1;
  background: #fff;
}

/* 自定义动画 */
@keyframes bounce-in {
  0% { transform: scale(0.3); opacity: 0; }
  50% { transform: scale(1.05); }
  70% { transform: scale(0.9); }
  100% { transform: scale(1); opacity: 1; }
}

.bounce-in {
  animation: bounce-in 0.6s ease-out;
}

/* 卡片悬停效果 */
.card-hover {
  transition: all 0.3s ease;
}

.card-hover:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 25px rgba(0,0,0,0.15);
}

/* 渐变背景 */
.gradient-bg {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.gradient-bg-pink {
  background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
}

.gradient-bg-blue {
  background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
}

.gradient-bg-yellow {
  background: linear-gradient(135deg, #fa709a 0%, #fee140 100%);
}

.gradient-bg-green {
  background: linear-gradient(135deg, #a8edea 0%, #fed6e3 100%);
}