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

body {
  overflow: hidden;
  font-family: 'Microsoft YaHei', sans-serif;
  color: #fff;
  background: radial-gradient(circle, #1a1a1a, #000);
}

.container {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 2;
  text-align: center;
}

.message {
  background: rgba(0, 0, 0, 0.7);
  padding: 2rem;
  border-radius: 15px;
  backdrop-filter: blur(5px);
  position: relative;
}

.text-content {
  opacity: 1;
  transition: opacity 1s ease;
}

.text-content.fade-out {
  opacity: 0;
}

.timer {
  position: absolute;
  top: 30%;
  left: 50%;
  transform: translate(-50%, -50%);
  opacity: 0;
  transition: opacity 1s ease;
  text-align: center;
}

.timer.show {
  opacity: 1;
}

.timer p {
  margin: 0.5rem 0;
  font-size: 1.5rem;
}

.timer span {
  color: #ff4081;
  font-weight: bold;
}

.video-container {
  margin-top: 2rem;
  width: 600px;
  max-width: 90%;
  border-radius: 15px;
  overflow: hidden;
  box-shadow: 0 0 20px rgba(255, 64, 129, 0.3);
}

video {
  width: 100%;
  height: auto;
  display: block;
}

h1 {
  font-size: 3rem;
  margin-bottom: 1rem;
  color: #ff4081;
}

p {
  font-size: 1.2rem;
  line-height: 2rem;
  color: #fff;
}

#fireworks {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}

.hearts {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
}

.heart {
  position: absolute;
  font-size: 20px;
  animation: fall linear forwards;
  color: #ff4081;
  text-shadow: 0 0 10px #ff4081, 0 0 20px #ff4081;
}

@keyframes fall {
  0% {
    transform: translateY(-10vh) scale(0.5);
    opacity: 0;
  }
  50% {
    transform: translateY(50vh) scale(1);
    opacity: 1;
  }
  100% {
    transform: translateY(110vh) scale(0.5);
    opacity: 0;
  }
}

audio {
  position: fixed;
  bottom: 20px;
  right: 20px;
  opacity: 0.5;
}

audio:hover {
  opacity: 1;
}

.big-heart {
  position: fixed;
  bottom: -100px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 200px;
  color: #ff4081;
  text-shadow: 0 0 20px #ff4081, 0 0 40px #ff4081;
  animation: float 6s ease-in-out infinite;
  cursor: pointer;
  transition: transform 0.3s ease;
}

.big-heart:hover {
  transform: translateX(-50%) scale(1.2);
}

@keyframes float {
  0%, 100% {
    transform: translateX(-50%) translateY(0);
  }
  50% {
    transform: translateX(-50%) translateY(-20px);
  }
}

.mini-heart {
  position: absolute;
  font-size: 30px;
  animation: mini-float linear forwards;
  color: #ff4081;
  text-shadow: 0 0 10px #ff4081, 0 0 20px #ff4081;
  pointer-events: none;
}

@keyframes mini-float {
  0% {
    transform: translateY(0) scale(1);
    opacity: 1;
  }
  100% {
    transform: translateY(-100px) scale(0.5);
    opacity: 0;
  }
}

.play-btn {
  position: fixed;
  bottom: 100px;
  left: 50%;
  transform: translateX(-50%);
  padding: 10px 20px;
  background-color: #ff4081;
  color: white;
  border-radius: 20px;
  cursor: pointer;
  font-size: 16px;
  box-shadow: 0 2px 5px rgba(0,0,0,0.2);
  transition: all 0.3s ease;
  z-index: 10000;
}

.play-btn:hover {
  background-color: #ff7675;
  transform: translateX(-50%) scale(1.1);
}

/* 新增覆盖层样式 */
.overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.9);
  z-index: 9999;
  cursor: pointer;
}

.overlay-content {
  font-size: 2.5rem;
  color: #fff;
  text-shadow: 0 0 10px #ff4081;
  animation: pulse 1.5s infinite;
  text-align: center;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  white-space: nowrap;
  margin: 0;
  padding: 0;
  line-height: 1;
  width: max-content;
}

@keyframes pulse {
  0% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.1);
  }
  100% {
    transform: scale(1);
  }
}