/* =========================================================
   advertise / advertises style.css
========================================================= */

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

html,
body {
  margin: 0 !important;
  padding: 0;
  min-height: 100vh;
}

body {
  display: flex;
  flex-direction: column;
}

main {
  flex: 1;
  background-color: #ede9db;
}

.slogan {
  background-color: #485652;
  color: white;
  height: 120px;
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 20px;
}

.slogan blockquote {
  margin: 0;
  font-size: 40px;
  font-weight: 700;
  letter-spacing: 1px;
}

.product {
  display: flex;
  justify-content: center;
  align-items: flex-start;
  gap: 60px;
  padding: 100px 20px 80px;
  width: 100%;
}

.product-card {
  width: 400px;
  max-width: 100%;
  text-align: center;
  margin: 0 auto;
}

.product-card h2 {
  margin-top: 15px;
  text-align: center;
  font-size: 20px;
  line-height: 1.4;
}

/* YouTube 播放框 */
.youtube-box {
  width: 100%;
  aspect-ratio: 16 / 9;
  border-radius: 10px;
  overflow: hidden;
  margin: 0 auto;
}

.youtube-box iframe {
  width: 100%;
  height: 100%;
  display: block;
  border: 0;
}

/* footer */
footer {
  background-color: #000;
  color: #B7B7B7;
  min-height: 60px;
  display: flex;
  justify-content: center;
  align-items: center;
  margin-top: auto;
  text-align: center;
  padding: 8px 12px;
  font-size: 14px;   /* 桌機版權字大小 */
  line-height: 1.4;
}

footer p {
  margin: 0;
}

/* 返回按鈕 */
.back-fab {
  position: fixed;
  right: 16px;
  bottom: 16px;
  width: 60px;
  height: 60px;
  border-radius: 999px;
  background: #0f172a;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  box-shadow: 0 8px 18px rgba(0, 0, 0, 0.25);
  z-index: 9999;
}

/* 平板 */
@media screen and (max-width: 1024px) {
  .product {
    gap: 36px;
    padding: 70px 20px 60px;
  }

  .product-card {
    width: 420px;
    max-width: 100%;
  }
}

/* 手機 */
@media screen and (max-width: 768px) {
  .slogan {
    height: 110px;
  }

  .slogan blockquote {
    font-size: 28px;
  }

  .product {
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    gap: 48px;
    padding: 48px 0 56px;
  }

  .product-card {
    width: min(92vw, 420px);
    max-width: 92vw;
    margin-left: auto;
    margin-right: auto;
    text-align: center;
  }

  .youtube-box {
    width: 100%;
    margin-left: auto;
    margin-right: auto;
  }

  .product-card h2 {
    margin-top: 16px;
    text-align: center;
    font-size: 18px;
  }

  footer {
    font-size: 12px;   /* 手機版權字大小，改這個 */
    padding: 10px 12px;
    line-height: 1.5;
  }

  .back-fab {
    width: 56px;
    height: 56px;
    right: 14px;
    bottom: 14px;
    font-size: 14px;
  }
}