/* ── 共用 CSS 變數 ── */
:root {
  --bg: #faf4ee;
  --card: #fff;
  --primary: #d08583;
  --primary-deep: #ad5f62;
  --primary-light: #e8b4b1;
  --accent: #8e3b46;
  --amber: #e09840;
  --gray: #8a8a8a;
  --gray-light: #efefef;
  --text: #2d2d2d;
  --text-light: #666;
  --red: #c0392b;
  --radius: 14px;
  --shadow: 0 2px 12px rgba(0,0,0,.08);
  /* 字體：標題用思源宋體、內文用思源黑體、價格等大數字用 Cormorant Garamond */
  --font-body: "Noto Sans TC","微軟正黑體",sans-serif;
  --font-head: "Noto Serif TC","Songti TC","PMingLiU",serif;
  --font-num: "Cormorant Garamond","Noto Serif TC",serif;
}

/* ── Reset + Base ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
body { background: var(--bg); font-family: var(--font-body); color: var(--text); line-height: 1.6; }
a { color: inherit; text-decoration: none; }

/* ── Navbar ── */
.navbar {
  background: var(--primary); color: #fff;
  padding: 14px 20px;
  display: flex; align-items: center; justify-content: space-between;
}
.navbar-brand { display: flex; align-items: center; gap: 6px; font-family: var(--font-head); font-size: 18px; font-weight: 900; letter-spacing: 2px; text-decoration: none; color: #fff; }
.navbar-back { font-size: 13px; color: rgba(255,255,255,.92); text-decoration: none; }
.navbar-back:hover { color: #fff; }
.navbar-cta {
  background: var(--accent); color: #fff;
  font-size: 13px; font-weight: 700;
  padding: 7px 18px; border-radius: 20px;
  transition: opacity .2s;
}
.navbar-cta:hover { opacity: .85; }

/* 手機版：縮小品牌字級、右側連結不換行，避免擠壓 */
.navbar-brand { min-width: 0; }
.navbar-brand span { white-space: nowrap; }
.navbar > div { flex-shrink: 0; white-space: nowrap; }
.navbar-cta { white-space: nowrap; }
@media (max-width: 480px) {
  .navbar { padding: 12px 14px; gap: 8px; }
  .navbar-brand { font-size: 15px; letter-spacing: 0; gap: 5px; }
  .navbar-brand img { width: 26px; height: 26px; }
  .navbar > div { gap: 10px !important; }
  .navbar > div a { font-size: 12px !important; }
  .navbar-cta { padding: 6px 12px; }
}

/* ── Form fields ── */
.field { margin-bottom: 16px; }
.field:last-child { margin-bottom: 0; }
.field label { display: block; font-size: 13px; font-weight: 700; margin-bottom: 6px; }
.field input, .field select {
  width: 100%; padding: 10px 14px;
  border: 1.5px solid var(--gray-light); border-radius: 8px;
  font-size: 14px; font-family: inherit; color: var(--text);
  background: #fff; transition: border-color .2s;
  -webkit-appearance: none; appearance: none;
}
.field input:focus, .field select:focus { outline: none; border-color: var(--primary-deep); }
.field input.error, .field select.error { border-color: var(--red); }
.field-error { font-size: 12px; color: var(--red); margin-top: 4px; }
.field-hint  { font-size: 12px; color: var(--text-light); margin-top: 4px; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }

/* ── Info rows（訂單摘要、匯款資訊）── */
.info-row { display: flex; justify-content: space-between; font-size: 13px; padding: 7px 0; border-bottom: 1px solid var(--gray-light); }
.info-row:last-child { border-bottom: none; }
.info-label { color: var(--text-light); }
.info-val   { font-weight: 700; }