/* === Global Reset & Base === */
body {
  margin: 0;
  padding: 0;
  background-color: #f4f9ff;
  font-family: "Microsoft JhengHei", "Noto Sans TC", sans-serif;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
}

/* === Main Wrapper === */
.wrapper {
  text-align: center;
  padding: 20px;
}

/* === Title === */
.title {
  font-size: 42px;
  font-weight: 700;
  color: #0167b5; /* 多采深藍 */
  letter-spacing: 4px;
  margin-bottom: 30px;
}

/* === Image === */
.image-box img {
  width: 600px;
  height: 600px;
  max-width: 90vw;
  max-height: 90vw;
  object-fit: contain;
  margin-bottom: 40px;
}

/* === Return Button === */
.btn-return {
  display: inline-block;
  padding: 14px 32px;
  font-size: 18px;
  font-weight: 600;
  color: #ffffff;
  background-color: #16bceb; /* 多采亮藍 */
  border-radius: 8px;
  text-decoration: none;
  transition: 0.25s;
}

.btn-return:hover {
  background-color: #0167b5; /* 深藍 hover */
}

@media (max-width: 768px) {
  body {
    display: flex;
    justify-content: center;
    align-items: center;
  }

  .title {
    font-size: 32px;
    letter-spacing: 3px;
  }

  .btn-return {
    font-size: 16px;
    padding: 12px 28px;
  }
}