/* 全站設定 */
body {
  font-family: Arial, sans-serif;
  background-color: #fefefe;
  margin: 0 auto;
  padding: 0;
  width: 80%;
}

/* header 區域 */
#header {
  background-color: #ffb703;
  color: white;
  padding: 20px;
  text-align: center;
}

#header h1 {
  margin: 0;
}

#header p {
  font-size: 18px;
  margin-top: 5px;
}

/* ================== 導覽列設定含子選單 ================== */
.menu {
  list-style: none;
  padding: 0;
  margin: 20px 0 0 0;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  background-color: transparent;
}

.menu > li {
  position: relative;
  flex: 1;
  text-align: center;
}

.menu > li > a {
  display: block;
  padding: 12px 0;
  background-color: #6a0dad;
  color: white;
  text-decoration: none;
  border-radius: 5px;
  transition: background-color 0.3s ease;
  margin: 0 5px;
}

.menu > li > a:hover {
  background-color: #e76f51;
}

/* 子選單樣式 */
.dropdown {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  background-color: #fff;
  min-width: 150px;
  box-shadow: 0px 4px 8px rgba(0, 0, 0, 0.1);
  border-radius: 5px;
  z-index: 99;
}

.dropdown li {
  width: 100%;
}

.dropdown li a {
  display: block;
  padding: 10px;
  color: #333;
  text-decoration: none;
  border-bottom: 1px solid #eee;
  transition: background-color 0.3s ease, color 0.3s ease;
}

.dropdown li a:hover {
  background-color: #ffb703;
  color: white;
}

/* 滑鼠懸停時顯示子選單 */
.menu > li:hover .dropdown {
  display: block;
}

/* ================== content 區域 ================== */
#content {
  float: left;
  width: 65%;
  padding: 20px;
  background-color: #f1f1f1;
  box-sizing: border-box;
}

/* ================== extra 區域 ================== */
#extra {
  float: right;
  width: 30%;
  padding: 20px;
  background-color: #e0e0e0;
  box-sizing: border-box;
}

#extra img {
  width: 100%;
  margin-bottom: 15px;
  border-radius: 8px;
  box-shadow: 0 0 8px rgba(0,0,0,0.1);
}

/* ================== footer 區域 ================== */
#footer {
  clear: both;
  background-color: #023047;
  color: white;
  text-align: center;
  padding: 20px;
  margin-top: 20px;
  font-size: 14px;
}

/* ================== 響應式設計 ================== */
@media screen and (max-width: 1024px) {
  body {
    width: 90%;
  }

  #content {
    width: 60%;
  }

  #extra {
    width: 35%;
  }

  #footer {
    font-size: 16px;
  }
}

@media screen and (max-width: 768px) {
  body {
    width: 95%;
  }

  #content, #extra {
    float: none;
    width: 100%;
  }

  .menu {
    flex-direction: column;
    align-items: center;
  }

  .menu > li {
    width: 100%;
  }

  .menu > li > a {
    width: 80%;
    margin: 10px auto;
  }

  .dropdown {
    position: static;
    width: 100%;
    box-shadow: none;
    border-radius: 0;
  }

  .dropdown li a {
    text-align: center;
    padding: 12px;
  }

  #footer {
    font-size: 12px;
  }
}

@media screen and (max-width: 500px) {
  #header h1 {
    font-size: 24px;
  }

  #header p {
    font-size: 14px;
  }

  #footer {
    font-size: 12px;
  }

  #content {
    padding: 15px;
  }

  #extra {
    padding: 15px;
  }
}

@media screen and (max-width: 320px) {
  body {
    width: 100%;
  }

  #header h1 {
    font-size: 20px;
  }

  #header p {
    font-size: 12px;
  }

  .menu > li > a {
    padding: 8px 0;
    font-size: 12px;
  }

  #content, #extra {
    width: 100%;
    padding: 10px;
  }

  #footer {
    font-size: 10px;
  }
}

/* 根據螢幕高度的響應式設計 */
@media screen and (max-height: 600px) {
  #header {
    padding: 15px;
  }

  #header h1 {
    font-size: 22px;
  }

  #header p {
    font-size: 14px;
  }

  #content, #extra {
    padding: 15px;
  }

  #footer {
    font-size: 12px;
    padding: 15px;
  }

  .menu > li > a {
    font-size: 14px;
  }
}

@media screen and (max-height: 400px) {
  #header {
    padding: 10px;
  }

  #header h1 {
    font-size: 18px;
  }

  #header p {
    font-size: 12px;
  }

  #content, #extra {
    padding: 10px;
  }

  #footer {
    font-size: 10px;
    padding: 10px;
  }

  .menu > li > a {
    font-size: 12px;
  }
}