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

body {
  font-family: "Hiragino Kaku Gothic ProN", "Yu Gothic", "Meiryo", sans-serif;
  background-color: #e8f5e9;
  color: #333;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  padding: 20px;
}

.container {
  background: #fff;
  border-radius: 12px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  max-width: 640px;
  width: 100%;
  padding: 48px 40px 0;
  text-align: center;
  overflow: hidden;
}

.title {
  font-size: 20px;
  font-weight: bold;
  color: #5a3e2b;
  margin-bottom: 24px;
  line-height: 1.6;
}

.divider {
  width: 60px;
  height: 3px;
  background: #8b6914;
  margin: 0 auto 28px;
  border-radius: 2px;
}

.message {
  font-size: 16px;
  line-height: 2;
  margin-bottom: 36px;
  color: #444;
}

.message strong {
  color: #d84315;
  font-size: 17px;
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 4px;
}

.cta-area {
  background: #fff8e1;
  margin: 0 -40px;
  padding: 32px 40px 40px;
  border-top: 2px dashed #e0c97f;
}

.cta-text {
  font-size: 15px;
  font-weight: bold;
  margin-bottom: 20px;
  color: #8b6914;
  letter-spacing: 0.05em;
}

.btn {
  display: inline-block;
  background-color: #d84315;
  color: #fff;
  text-decoration: none;
  font-size: 18px;
  font-weight: bold;
  padding: 18px 52px;
  border-radius: 50px;
  transition: background-color 0.2s, transform 0.2s;
  letter-spacing: 0.08em;
  box-shadow: 0 4px 16px rgba(216, 67, 21, 0.3);
  animation: pulse 2s ease-in-out infinite;
}

.btn:hover {
  background-color: #bf360c;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(216, 67, 21, 0.4);
}

.btn-arrow {
  margin-left: 8px;
  transition: transform 0.2s;
  display: inline-block;
}

.btn:hover .btn-arrow {
  transform: translateX(4px);
}

@keyframes pulse {
  0%, 100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.04);
  }
}

@media (max-width: 480px) {
  .container {
    padding: 32px 20px 0;
  }

  .title {
    font-size: 18px;
  }

  .message {
    font-size: 15px;
  }

  .cta-area {
    margin: 0 -20px;
    padding: 28px 20px 32px;
  }

  .btn {
    font-size: 16px;
    padding: 16px 36px;
    width: 100%;
  }
}