:root {
  --背景: #f5efe6;
  --主色: #7a4d2b;
  --次色: #d9a441;
  --深色: #2f241d;
  --卡片: rgba(255, 255, 255, 0.78);
  --陰影: 0 18px 40px rgba(66, 45, 22, 0.12);
  --邊框: rgba(122, 77, 43, 0.14);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Microsoft JhengHei", "PingFang TC", sans-serif;
  color: var(--深色);
  background:
    radial-gradient(circle at top left, rgba(217, 164, 65, 0.26), transparent 28%),
    radial-gradient(circle at right top, rgba(122, 77, 43, 0.16), transparent 24%),
    linear-gradient(180deg, #fffaf2 0%, var(--背景) 100%);
  min-height: 100vh;
}

body,
button {
  letter-spacing: 0.03em;
}

main,
.導覽列,
.頁尾 {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
}

.背景裝飾 {
  position: fixed;
  border-radius: 999px;
  filter: blur(10px);
  opacity: 0.45;
  pointer-events: none;
  z-index: -1;
}

.背景裝飾一 {
  width: 220px;
  height: 220px;
  right: -40px;
  top: 110px;
  background: rgba(217, 164, 65, 0.32);
}

.背景裝飾二 {
  width: 180px;
  height: 180px;
  left: -40px;
  bottom: 80px;
  background: rgba(122, 77, 43, 0.18);
}

.導覽列 {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) minmax(260px, 0.8fr);
  gap: 24px;
  padding: 56px 0 28px;
  align-items: stretch;
}

.品牌小字 {
  margin: 0 0 12px;
  color: var(--主色);
  font-size: 0.92rem;
  font-weight: 700;
}

h1,
h2,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 16px;
  font-size: clamp(2rem, 4vw, 4rem);
  line-height: 1.15;
  max-width: 12ch;
}

.主文案 {
  margin-bottom: 0;
  max-width: 42rem;
  font-size: 1.05rem;
  line-height: 1.9;
  color: rgba(47, 36, 29, 0.84);
}

.導覽卡,
.數據卡,
.提案卡,
.篩選按鈕,
.書卡 {
  border: 1px solid var(--邊框);
  box-shadow: var(--陰影);
  backdrop-filter: blur(10px);
}

.導覽卡 {
  align-self: end;
  padding: 24px;
  border-radius: 24px;
  background: linear-gradient(160deg, rgba(255, 255, 255, 0.92), rgba(255, 243, 221, 0.9));
}

.導覽卡 p,
.數據卡 span {
  color: var(--主色);
  font-size: 0.9rem;
  font-weight: 700;
}

.導覽卡 strong {
  display: block;
  margin: 12px 0;
  font-size: 1.35rem;
}

.導覽卡 span,
.提案卡 p,
.書卡 p,
.書籤,
.頁尾 p {
  line-height: 1.8;
}

.數據列 {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  padding: 12px 0 24px;
}

.數據卡 {
  padding: 18px 20px;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.72);
}

.數據卡 strong {
  display: block;
  margin-top: 8px;
  font-size: 1.06rem;
}

.內容區 {
  padding: 20px 0 28px;
}

.介紹區 {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  gap: 18px;
  padding: 8px 0 16px;
}

.介紹文字,
.介紹重點 {
  border: 1px solid var(--邊框);
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.76);
  box-shadow: var(--陰影);
  padding: 24px;
}

.介紹文字 p:last-child {
  margin-bottom: 0;
  line-height: 1.9;
  color: rgba(47, 36, 29, 0.84);
}

.介紹重點 {
  display: grid;
  gap: 14px;
}

.介紹重點 strong {
  display: block;
  margin-bottom: 6px;
  color: var(--主色);
  font-size: 1.05rem;
}

.介紹重點 span {
  line-height: 1.8;
  color: rgba(47, 36, 29, 0.82);
}

.區塊標題 {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: end;
  margin-bottom: 18px;
}

.區塊標題 h2,
.提案卡 h2 {
  margin-bottom: 0;
  font-size: clamp(1.5rem, 2.4vw, 2.3rem);
}

.篩選列 {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.篩選按鈕 {
  border-radius: 999px;
  padding: 10px 16px;
  background: rgba(255, 255, 255, 0.75);
  color: var(--深色);
  font: inherit;
  cursor: pointer;
  transition: transform 0.2s ease, background 0.2s ease, color 0.2s ease;
}

.篩選按鈕:hover {
  transform: translateY(-2px);
}

.篩選按鈕.已選取 {
  background: linear-gradient(135deg, var(--主色), #a86a3b);
  color: #fff;
}

.卡片網格 {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.書卡 {
  overflow: hidden;
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.82);
}

.書卡頭部 {
  padding: 20px;
  min-height: 160px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  color: #fff;
}

.書標籤列 {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.書籤 {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  padding: 4px 10px;
  background: rgba(255, 255, 255, 0.18);
  font-size: 0.84rem;
}

.書卡主體 {
  padding: 20px;
}

.書卡主體 h3 {
  margin: 0 0 10px;
  font-size: 1.2rem;
}

.書卡主體 p {
  margin-bottom: 16px;
  color: rgba(47, 36, 29, 0.82);
}

.書卡資訊 {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  font-size: 0.92rem;
  color: var(--主色);
}

.閱讀提案 {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  padding: 18px 0 56px;
}

.表單區 {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 18px;
  padding: 0 0 56px;
}

.提案卡 {
  border-radius: 28px;
  padding: 28px;
  background: rgba(255, 255, 255, 0.74);
}

.提案卡 ul {
  margin: 18px 0 0;
  padding-left: 20px;
  line-height: 1.9;
}

.提案卡亮色 {
  background: linear-gradient(150deg, rgba(122, 77, 43, 0.12), rgba(217, 164, 65, 0.18));
}

.表單說明,
.閱讀表單 {
  border: 1px solid var(--邊框);
  border-radius: 28px;
  background: rgba(255, 255, 255, 0.76);
  box-shadow: var(--陰影);
  padding: 28px;
}

.表單說明 p:last-child {
  margin-bottom: 0;
  line-height: 1.9;
  color: rgba(47, 36, 29, 0.84);
}

.閱讀表單 {
  display: grid;
  gap: 16px;
}

.表單欄位 {
  display: grid;
  gap: 8px;
}

.表單欄位 label {
  font-weight: 700;
  color: var(--主色);
}

.表單欄位 input,
.表單欄位 select {
  width: 100%;
  border: 1px solid rgba(122, 77, 43, 0.22);
  border-radius: 16px;
  padding: 14px 16px;
  font: inherit;
  color: var(--深色);
  background: rgba(255, 255, 255, 0.92);
  outline: none;
}

.表單欄位 input:focus,
.表單欄位 select:focus {
  border-color: var(--主色);
  box-shadow: 0 0 0 4px rgba(122, 77, 43, 0.12);
}

.送出按鈕 {
  border: 0;
  border-radius: 16px;
  padding: 14px 18px;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
  color: #fff;
  background: linear-gradient(135deg, var(--主色), #a86a3b);
  box-shadow: var(--陰影);
  transition: transform 0.2s ease;
}

.送出按鈕:hover {
  transform: translateY(-2px);
}

.表單訊息 {
  min-height: 1.6em;
  margin: 0;
  color: var(--主色);
  font-weight: 700;
}

.頁尾 {
  padding: 0 0 40px;
  text-align: center;
  color: rgba(47, 36, 29, 0.74);
}

@media (max-width: 900px) {
  .導覽列,
  .介紹區,
  .區塊標題,
  .閱讀提案,
  .表單區,
  .卡片網格,
  .數據列 {
    grid-template-columns: 1fr;
  }

  .區塊標題 {
    align-items: start;
  }

  .導覽列 {
    padding-top: 36px;
  }
}

@media (max-width: 640px) {
  main,
  .導覽列,
  .頁尾 {
    width: min(100% - 20px, 1120px);
  }

  .導覽列 {
    gap: 16px;
  }

  .數據列,
  .內容區,
  .閱讀提案 {
    padding-left: 0;
    padding-right: 0;
  }

  .表單區 {
    padding-left: 0;
    padding-right: 0;
  }

  .篩選列 {
    width: 100%;
  }

  .篩選按鈕 {
    flex: 1 1 calc(50% - 10px);
  }
}