:root {
  --bg: #f8f1e7;
  --paper: #fffaf2;
  --white: #ffffff;
  --brown: #3f2b1e;
  --brown2: #7a4a25;
  --gold: #c99149;
  --line: #e8d9c8;
  --green: #657246;
  --muted: #6b4423;
}
* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, 'Noto Sans TC', 'Microsoft JhengHei', Arial, sans-serif;
  background: var(--bg);
  color: var(--brown);
  line-height: 1.75;
}
a {
  color: inherit;
  text-decoration: none;
}
button,
a {
  transition:
    transform 0.18s ease,
    box-shadow 0.18s ease,
    background-color 0.18s ease,
    border-color 0.18s ease,
    color 0.18s ease,
    opacity 0.18s ease;
}
button:hover,
.btn:hover,
.small-btn:hover,
.buy-top:hover,
.zoomable-link:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 24px rgba(63, 43, 30, 0.16);
}
button:active,
.btn:active,
.small-btn:active,
.buy-top:active,
.zoomable-link:active {
  transform: translateY(0) scale(0.97);
  box-shadow: 0 6px 14px rgba(63, 43, 30, 0.12);
}
button:focus-visible,
a:focus-visible {
  outline: 3px solid rgba(201, 145, 73, 0.45);
  outline-offset: 4px;
}
img {
  max-width: 100%;
  display: block;
}
.container {
  max-width: 1160px;
  margin: auto;
  padding: 0 20px;
}
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 250, 242, 0.96);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(10px);
}
.nav-inner {
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 900;
  font-size: 22px;
}
.logo-mark {
  width: 42px;
  height: 42px;
  border-radius: 16px;
  background: #fffaf2;
  border: 1px solid var(--line);
  overflow: hidden;
  box-shadow: 0 8px 20px rgba(63, 43, 30, 0.08);
  display: grid;
  place-items: center;
}
.logo-mark img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.links {
  display: flex;
  gap: 18px;
  font-size: 14px;
  font-weight: 800;
  align-items: center;
  white-space: nowrap;
}
.links a {
  padding: 8px 0;
}
.buy-top {
  background: var(--brown);
  color: #fff;
  padding: 10px 16px;
  border-radius: 999px;
}
.admin-page {
  min-height: 100vh;
  background: radial-gradient(circle at 50% 0, #fff2c7 0, #f9e4ad 48%, #f4d993 100%);
  color: #1f160f;
}
.admin-nav {
  padding: 18px 0 0;
}
.admin-nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.admin-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 900;
}
.admin-brand-name {
  font-size: 23px;
  letter-spacing: 1px;
}
.admin-brand-sub {
  color: var(--brown2);
  font-size: 13px;
  letter-spacing: 5px;
  font-weight: 700;
}
.admin-links {
  display: flex;
  align-items: center;
  gap: 22px;
  font-weight: 800;
  white-space: nowrap;
}
.admin-links a {
  padding: 10px 0;
}
.admin-links .is-active {
  background: #6f3d0d;
  color: #fff;
  padding: 10px 18px;
  border-radius: 999px;
}
.admin-logout {
  background: rgba(255, 255, 255, 0.55);
  border: 1px solid rgba(63, 43, 30, 0.16);
  border-radius: 999px;
  padding: 10px 18px !important;
}
.admin-shell {
  padding-bottom: 56px;
}
.admin-hero {
  padding-top: 52px;
  padding-bottom: 28px;
}
.admin-hero h1 {
  margin: 6px 0 12px;
  color: #23170f;
  font-size: clamp(44px, 6vw, 72px);
  letter-spacing: 0;
}
.admin-hero p:last-child {
  max-width: 760px;
  color: #6d4e37;
  font-size: 18px;
}
.admin-card {
  background: rgba(255, 250, 242, 0.9);
  border: 1px solid rgba(63, 43, 30, 0.08);
  border-radius: 24px;
  box-shadow: 0 24px 70px rgba(111, 61, 13, 0.18);
  padding: 24px;
}
.admin-card-head h2 {
  margin: 0 0 10px;
  font-size: 28px;
  letter-spacing: 0;
}
.admin-card-head p {
  margin: 0;
  color: #6d4e37;
  font-size: 17px;
}
.admin-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  margin: 22px 0;
}
.admin-stats article {
  background: rgba(255, 255, 255, 0.44);
  border: 1px solid rgba(63, 43, 30, 0.09);
  border-radius: 16px;
  padding: 18px;
}
.admin-stats span {
  display: block;
  color: #7a5a43;
  font-size: 14px;
  margin-bottom: 8px;
}
.admin-stats strong {
  display: block;
  font-size: 30px;
  line-height: 1;
}
.admin-columns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}
.admin-columns h3 {
  margin: 0 0 10px;
  font-size: 22px;
}
.admin-list {
  display: grid;
  gap: 10px;
}
.admin-list div {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 50px;
  padding: 11px 14px;
  border: 1px solid rgba(63, 43, 30, 0.09);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.34);
}
.admin-list span {
  color: #6d4e37;
  text-align: right;
}
.hero {
  background: linear-gradient(135deg, rgba(63, 43, 30, 0.92), rgba(122, 74, 37, 0.82)), url('assets/hero.png');
  background-size: cover;
  background-position: center;
  color: #fff;
}
.hero .container {
  min-height: 560px;
  display: grid;
  align-items: center;
  padding-top: 72px;
  padding-bottom: 72px;
}
.hero-box {
  max-width: 760px;
}
.tag {
  display: inline-block;
  background: rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.25);
  padding: 8px 14px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 900;
}
h1 {
  font-size: clamp(42px, 7vw, 82px);
  line-height: 1.05;
  margin: 20px 0 18px;
  letter-spacing: -2px;
}
.hero p {
  font-size: 20px;
  color: #f2e2cc;
  max-width: 680px;
}
.cta {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 28px;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  padding: 14px 22px;
  font-weight: 900;
}
.btn.primary {
  background: var(--gold);
  color: #fff;
}
.btn.secondary {
  background: #fff;
  color: var(--brown);
}
.section {
  padding: 72px 0;
  border-bottom: 1px solid var(--line);
}
.section.white {
  background: #fff;
}
.head {
  text-align: center;
  max-width: 820px;
  margin: 0 auto 36px;
}
.eyebrow {
  font-size: 12px;
  color: var(--brown2);
  font-weight: 900;
  letter-spacing: 2px;
  text-transform: uppercase;
  margin: 0 0 6px;
}
h2 {
  font-size: clamp(32px, 4.5vw, 54px);
  line-height: 1.15;
  margin: 0 0 14px;
}
h3 {
  font-size: 24px;
  line-height: 1.25;
  margin: 0 0 8px;
}
.head p,
.muted {
  color: var(--muted);
}
.grid3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
.grid2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 28px;
  overflow: hidden;
  box-shadow: 0 14px 30px rgba(63, 43, 30, 0.06);
}
.card img {
  width: 100%;
  height: 260px;
  object-fit: contain;
  background: #fff6ea;
}
.card img.product-card-img {
  height: auto;
  object-fit: contain;
}
.zoomable-img {
  cursor: zoom-in;
}
.zoomable-link {
  display: block;
}
.image-lightbox {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: rgba(18, 12, 8, 0.86);
}
.image-lightbox.is-open {
  display: flex;
}
.image-lightbox img {
  max-width: min(1100px, 94vw);
  max-height: 88vh;
  border-radius: 18px;
  background: #fffaf2;
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.35);
}
.image-lightbox button {
  position: absolute;
  top: 18px;
  right: 18px;
  width: 44px;
  height: 44px;
  border: 1px solid rgba(255, 255, 255, 0.35);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.14);
  color: #fff;
  cursor: pointer;
  font-size: 28px;
  line-height: 1;
}
.card-body {
  padding: 22px;
}
.specs {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin: 16px 0;
}
.specs span {
  background: #f2e2cc;
  color: var(--brown2);
  font-size: 13px;
  font-weight: 900;
  padding: 6px 10px;
  border-radius: 999px;
}
.small-btn {
  display: inline-block;
  background: var(--brown);
  color: #fff;
  border-radius: 999px;
  padding: 10px 16px;
  font-size: 14px;
  font-weight: 900;
  box-shadow: 0 8px 18px rgba(63, 43, 30, 0.1);
}
.answer-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 16px;
  font-size: 15px;
}
.answer-table th,
.answer-table td {
  border: 1px solid var(--line);
  padding: 12px;
  text-align: left;
  vertical-align: top;
}
.answer-table th {
  background: #f2e2cc;
  color: var(--brown);
}
.page-title {
  padding: 70px 0 34px;
  background: linear-gradient(135deg, #fffaf2, #f3e2ca);
  border-bottom: 1px solid var(--line);
}
.page-title p {
  font-size: 18px;
  color: var(--muted);
  max-width: 760px;
}
.article-img {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 30px;
  overflow: hidden;
  box-shadow: 0 14px 30px rgba(63, 43, 30, 0.06);
}
.article-img img {
  width: 100%;
  height: auto;
}
.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.step {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 22px;
  padding: 18px;
}
.step b {
  display: block;
  font-size: 19px;
  margin-bottom: 6px;
}
.note {
  background: var(--brown);
  color: #fff;
  border-radius: 30px;
  padding: 34px;
  text-align: center;
}
.note p {
  color: #f2e2cc;
}
.footer {
  background: var(--brown);
  color: #fff;
  padding: 34px 0;
  text-align: center;
}
.footer small {
  color: #e8d9c8;
}
@media (max-width: 900px) {
  .links {
    display: none;
  }
  .admin-nav-inner {
    align-items: flex-start;
    flex-direction: column;
  }
  .admin-links {
    width: 100%;
    gap: 10px;
    overflow-x: auto;
    padding-bottom: 8px;
  }
  .admin-stats,
  .admin-columns {
    grid-template-columns: 1fr;
  }
  .admin-list div {
    align-items: flex-start;
    flex-direction: column;
    gap: 2px;
  }
  .admin-list span {
    text-align: left;
  }
  .hero .container {
    min-height: auto;
    padding-top: 56px;
    padding-bottom: 56px;
  }
  .grid3,
  .grid2,
  .steps {
    grid-template-columns: 1fr;
  }
  .card img {
    height: auto;
  }
  .section {
    padding: 52px 0;
  }
  .nav-inner {
    height: 64px;
  }
  .answer-table {
    display: block;
    overflow-x: auto;
    white-space: nowrap;
  }
}