body {
  margin: 0;
  font-family: "Noto Sans TC", sans-serif;
  background: #0a0f0f;
  color: #f5f5f5;
  overflow-x: hidden;
}

.hero {
  position: relative;
  height: 100vh;
  background: url('https://images.unsplash.com/photo-1526481280691-7a1b3e7a6c1f') center/cover no-repeat;
}

.overlay {
  position: absolute;
  width: 100%;
  height: 100%;
  background: rgba(0,0,0,0.6);
}

.hero-content {
  position: relative;
  text-align: center;
  top: 40%;
  transform: translateY(-50%);
}

.hero h1 {
  font-size: 3em;
  letter-spacing: 4px;
}

.hero button {
  margin-top: 20px;
  padding: 10px 25px;
  background: #b30000;
  border: none;
  color: white;
  cursor: pointer;
}

.navbar {
  display: flex;
  justify-content: center;
  background: #111;
  padding: 10px;
}

.navbar a {
  color: #ccc;
  margin: 0 15px;
  text-decoration: none;
}

.section {
  padding: 60px 20px;
  text-align: center;
}

/* Sakura petals */
.sakura {
  position: fixed;
  top: -10px;
  width: 12px;
  height: 12px;
  background: pink;
  border-radius: 50%;
  opacity: 0.8;
  animation: fall linear infinite;
}

@keyframes fall {
  0% { transform: translateY(0) translateX(0); }
  100% { transform: translateY(100vh) translateX(60px); }
}