:root {
  --bg: #f3eee6;
  --surface: #fffdf8;
  --surface-alt: #f8f3eb;
  --surface-strong: #ffffff;
  --ink: #163629;
  --ink-soft: #4f5f57;
  --ink-faint: #778179;
  --gold: #c9a876;
  --gold-deep: #a88656;
  --green: #114a36;
  --green-deep: #0b3125;
  --green-soft: #1d6b50;
  --line: rgba(17, 74, 54, 0.12);
  --line-strong: rgba(17, 74, 54, 0.2);
  --shadow-lg: 0 24px 64px rgba(14, 36, 28, 0.12);
  --shadow-md: 0 18px 40px rgba(14, 36, 28, 0.08);
  --shadow-sm: 0 12px 24px rgba(14, 36, 28, 0.05);
  --radius-lg: 28px;
  --radius-md: 18px;
  --radius-sm: 12px;
  --container: min(1200px, calc(100vw - 48px));
  --header-h: 88px;
  --transition: 240ms ease;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Noto Sans TC", "Inter", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at top left, rgba(201, 168, 118, 0.14), transparent 30%),
    linear-gradient(180deg, #f6f1e9 0%, #f3eee6 100%);
  line-height: 1.6;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input,
select,
textarea {
  font: inherit;
}

button {
  cursor: pointer;
}

.skip-link {
  position: absolute;
  left: 16px;
  top: -48px;
  z-index: 1000;
  padding: 10px 14px;
  border-radius: 999px;
  background: var(--green-deep);
  color: #fff;
  transition: top var(--transition);
}

.skip-link:focus {
  top: 16px;
}

.site-shell {
  min-height: 100vh;
}

.container {
  width: var(--container);
  margin: 0 auto;
}

.section {
  padding: 112px 0;
}

.section--tight {
  padding: 84px 0;
}

.section--light {
  background: var(--surface);
}

.section--deep {
  color: #f8efe2;
  background:
    linear-gradient(135deg, rgba(201, 168, 118, 0.12), transparent 40%),
    linear-gradient(180deg, rgba(17, 74, 54, 0.96), rgba(11, 49, 37, 1));
}

.section--framed {
  border-top: 1px solid rgba(201, 168, 118, 0.2);
  border-bottom: 1px solid rgba(17, 74, 54, 0.06);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 16px;
  color: var(--gold);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.28em;
  text-transform: uppercase;
}

.eyebrow::before {
  content: "";
  width: 34px;
  height: 1px;
  background: currentColor;
}

.section-title,
.display-title,
.page-hero__title,
.hero-home__title {
  margin: 0;
  font-family: "Noto Serif TC", "Playfair Display", serif;
  font-weight: 700;
  line-height: 1.08;
}

.display-title {
  font-size: clamp(2.8rem, 5vw, 5.8rem);
}

.section-title {
  font-size: clamp(2rem, 4vw, 3.4rem);
}

.body-lg {
  font-size: 1.08rem;
  color: var(--ink-soft);
}

.body-sm {
  font-size: 0.95rem;
  color: var(--ink-faint);
}

.lede {
  max-width: 700px;
}

.stack {
  display: grid;
  gap: 24px;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 52px;
  padding: 0 24px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  transition:
    transform var(--transition),
    background-color var(--transition),
    color var(--transition),
    border-color var(--transition),
    box-shadow var(--transition);
}

.btn:hover,
.btn:focus-visible {
  transform: translateY(-1px);
}

.btn:focus-visible,
.nav-link:focus-visible,
.chip:focus-visible,
.filter-button:focus-visible,
.footer-link:focus-visible,
.social-link:focus-visible,
.field:focus-visible,
.mobile-toggle:focus-visible,
.download-link:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 3px;
}

.btn--primary {
  color: var(--green-deep);
  background: var(--gold);
  box-shadow: var(--shadow-sm);
}

.btn--primary:hover,
.btn--primary:focus-visible {
  background: #d5b585;
}

.btn--secondary {
  color: var(--green);
  border-color: rgba(17, 74, 54, 0.18);
  background: rgba(255, 255, 255, 0.72);
}

.section--deep .btn--secondary,
.hero-home__panel .btn--secondary,
.page-hero__content .btn--secondary {
  color: #f8efe2;
  border-color: rgba(255, 255, 255, 0.28);
  background: rgba(255, 255, 255, 0.06);
}

.btn--ghost {
  color: var(--green);
  border-color: rgba(17, 74, 54, 0.14);
  background: transparent;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(16px);
  background: rgba(11, 49, 37, 0.92);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.site-header.is-scrolled {
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.16);
}

.site-header__bar {
  min-height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}

.site-brand {
  display: inline-flex;
  flex-direction: column;
  line-height: 1;
}

.site-brand__title {
  font-family: "Noto Serif TC", "Playfair Display", serif;
  font-size: 1.72rem;
  color: #f7f2e8;
}

.site-brand__subtitle {
  margin-top: 4px;
  font-family: "Noto Serif TC", "Playfair Display", serif;
  font-size: 0.7rem;
  color: var(--gold);
  letter-spacing: 0.34em;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 28px;
}

.site-nav__list {
  display: flex;
  align-items: center;
  gap: 24px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.nav-link {
  position: relative;
  color: rgba(248, 239, 226, 0.78);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  transition: color var(--transition);
}

.nav-link:hover,
.nav-link[aria-current="page"] {
  color: var(--gold);
}

.nav-link[aria-current="page"]::after,
.nav-link:hover::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -10px;
  height: 1px;
  background: currentColor;
}

.site-header__actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.lang-switch {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding-right: 18px;
  border-right: 1px solid rgba(255, 255, 255, 0.16);
  color: rgba(248, 239, 226, 0.74);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

.mobile-toggle {
  display: none;
  width: 48px;
  height: 48px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.05);
  color: #fff;
}

.mobile-nav {
  display: none;
}

.hero-home,
.page-hero {
  position: relative;
  overflow: hidden;
}

.hero-home {
  min-height: min(920px, calc(100vh - 24px));
  display: grid;
  align-items: center;
  padding: 72px 0 48px;
  color: #fff;
}

.hero-home::before,
.page-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(120deg, rgba(11, 49, 37, 0.88), rgba(11, 49, 37, 0.36)),
    linear-gradient(180deg, rgba(11, 49, 37, 0.12), rgba(11, 49, 37, 0.74));
}

.hero-home__media,
.page-hero__media {
  position: absolute;
  inset: 0;
}

.hero-home__media img,
.page-hero__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-home__content,
.page-hero__content {
  position: relative;
  z-index: 1;
}

.hero-home__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(320px, 0.72fr);
  gap: 48px;
  align-items: end;
}

.hero-home__title {
  font-size: clamp(3.4rem, 7vw, 7rem);
}

.hero-home__title span {
  display: block;
  color: var(--gold);
}

.hero-home__subtitle {
  margin: 20px 0 16px;
  font-size: 1.2rem;
  font-weight: 700;
  color: #efe1cb;
}

.hero-home__panel,
.panel {
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255, 255, 255, 0.16);
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(12px);
  box-shadow: var(--shadow-lg);
}

.hero-home__panel {
  padding: 28px;
}

.hero-home__panel-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.panel-metric {
  border-radius: 20px;
  padding: 18px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.panel-metric__value {
  margin: 0;
  font-family: "Noto Serif TC", "Playfair Display", serif;
  font-size: 2rem;
}

.panel-metric__label {
  margin: 10px 0 0;
  color: rgba(248, 239, 226, 0.72);
  font-size: 0.82rem;
  letter-spacing: 0.08em;
}

.hero-mark {
  margin-top: 24px;
  padding-left: 18px;
  border-left: 2px solid rgba(201, 168, 118, 0.5);
  color: rgba(248, 239, 226, 0.75);
}

.page-hero {
  min-height: 520px;
  display: grid;
  align-items: end;
  padding: 88px 0 64px;
  color: #fff;
}

.page-hero__title {
  font-size: clamp(2.8rem, 5vw, 4.8rem);
}

.page-hero__meta {
  max-width: 720px;
  color: rgba(248, 239, 226, 0.8);
}

.page-hero__meta-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 24px;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: 40px;
  padding: 0 16px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.08);
  color: rgba(248, 239, 226, 0.84);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
}

.grid-2,
.grid-3,
.grid-4,
.split-layout {
  display: grid;
  gap: 28px;
}

.grid-2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.grid-4 {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.split-layout {
  grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
  align-items: start;
}

.card {
  height: 100%;
  padding: 30px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.82);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-sm);
  transition:
    transform var(--transition),
    border-color var(--transition),
    box-shadow var(--transition);
}

.card:hover {
  transform: translateY(-4px);
  border-color: rgba(201, 168, 118, 0.4);
  box-shadow: var(--shadow-md);
}

.card--deep {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(255, 255, 255, 0.1);
  color: #f8efe2;
}

.card__index {
  color: rgba(201, 168, 118, 0.76);
  font-family: "Noto Serif TC", "Playfair Display", serif;
  font-size: 2rem;
}

.card__title {
  margin: 18px 0 14px;
  font-family: "Noto Serif TC", "Playfair Display", serif;
  font-size: 1.6rem;
  line-height: 1.2;
}

.card__meta {
  color: var(--ink-faint);
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 20px;
}

.metric-card {
  position: relative;
  height: 100%;
  padding: 28px;
  border-radius: 22px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.85), rgba(255, 255, 255, 0.68));
  border: 1px solid rgba(17, 74, 54, 0.08);
}

.metric-card__value {
  margin: 0;
  font-family: "Noto Serif TC", "Playfair Display", serif;
  font-size: 2.6rem;
  color: var(--green);
}

.metric-card__label {
  margin: 18px 0 0;
  color: var(--ink-soft);
}

.media-frame {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-lg);
  min-height: 420px;
  box-shadow: var(--shadow-lg);
}

.media-frame::after {
  content: "";
  position: absolute;
  inset: 16px;
  border: 1px solid rgba(201, 168, 118, 0.3);
  border-radius: calc(var(--radius-lg) - 10px);
  pointer-events: none;
}

.media-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.list-clean {
  margin: 0;
  padding: 0;
  list-style: none;
}

.list-clean li {
  display: flex;
  gap: 14px;
  align-items: flex-start;
}

.list-clean li + li {
  margin-top: 16px;
}

.dot {
  width: 10px;
  height: 10px;
  margin-top: 10px;
  border-radius: 999px;
  flex-shrink: 0;
  background: var(--gold);
  box-shadow: 0 0 0 6px rgba(201, 168, 118, 0.16);
}

.timeline {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 20px;
}

.timeline__item {
  position: relative;
  padding-top: 28px;
  border-top: 1px solid rgba(201, 168, 118, 0.5);
}

.timeline__item::before {
  content: "";
  position: absolute;
  left: 0;
  top: -7px;
  width: 14px;
  height: 14px;
  border-radius: 999px;
  background: var(--gold);
  box-shadow: 0 0 0 6px rgba(201, 168, 118, 0.16);
}

.timeline__title {
  margin: 0 0 10px;
  font-family: "Noto Serif TC", "Playfair Display", serif;
  font-size: 1.4rem;
  color: var(--green);
}

.resource-grid,
.product-grid,
.contact-grid {
  display: grid;
  gap: 24px;
}

.resource-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.product-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.contact-grid {
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  align-items: start;
}

.resource-card,
.product-card {
  display: flex;
  flex-direction: column;
  height: 100%;
  overflow: hidden;
  border-radius: var(--radius-md);
  background: var(--surface-strong);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-sm);
}

.resource-card__body,
.product-card__body {
  padding: 28px;
}

.resource-card__icon {
  width: 56px;
  height: 56px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  background: rgba(17, 74, 54, 0.06);
  color: var(--green);
  font-size: 1.35rem;
}

.download-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--green);
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.download-link:hover {
  color: var(--gold-deep);
}

.filter-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 28px;
}

.filter-button {
  min-height: 42px;
  padding: 0 18px;
  border-radius: 999px;
  border: 1px solid rgba(17, 74, 54, 0.14);
  background: rgba(255, 255, 255, 0.72);
  color: var(--ink-soft);
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  transition: all var(--transition);
}

.filter-button.is-active {
  background: var(--green);
  border-color: var(--green);
  color: #f8efe2;
}

.field {
  width: 100%;
  min-height: 56px;
  padding: 14px 16px;
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
}

.field::placeholder {
  color: rgba(248, 239, 226, 0.52);
}

.field--light {
  border-color: var(--line);
  background: rgba(255, 255, 255, 0.82);
  color: var(--ink);
}

.field--light::placeholder {
  color: rgba(79, 95, 87, 0.7);
}

textarea.field {
  min-height: 144px;
  resize: vertical;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.form-grid .field-span-2 {
  grid-column: span 2;
}

.form-status {
  display: none;
  margin-top: 16px;
  padding: 12px 14px;
  border-radius: 14px;
  font-size: 0.95rem;
}

.form-status.is-success {
  display: block;
  background: rgba(201, 168, 118, 0.18);
  color: #fff4de;
}

.faq-list {
  display: grid;
  gap: 14px;
}

.faq-item {
  border-radius: 18px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.72);
  overflow: hidden;
}

.faq-item summary {
  padding: 20px 22px;
  cursor: pointer;
  list-style: none;
  font-weight: 700;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item__body {
  padding: 0 22px 20px;
  color: var(--ink-soft);
}

.footer {
  color: #f8efe2;
  background: linear-gradient(180deg, var(--green-deep), #081d16);
  padding: 80px 0 42px;
}

.footer__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) repeat(2, minmax(0, 0.8fr)) minmax(0, 1fr);
  gap: 32px;
}

.footer__title {
  margin: 0 0 14px;
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: rgba(201, 168, 118, 0.92);
}

.footer-link,
.social-link {
  color: rgba(248, 239, 226, 0.74);
}

.footer-link:hover,
.social-link:hover {
  color: var(--gold);
}

.footer__legal {
  margin-top: 40px;
  padding-top: 18px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  color: rgba(248, 239, 226, 0.52);
  font-size: 0.82rem;
}

[data-reveal] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

.is-hidden {
  display: none !important;
}

.empty-state {
  padding: 36px;
  text-align: center;
  border-radius: 22px;
  border: 1px dashed rgba(17, 74, 54, 0.18);
  background: rgba(255, 255, 255, 0.56);
  color: var(--ink-soft);
}

@media (max-width: 1200px) {
  .hero-home__grid,
  .split-layout,
  .contact-grid,
  .footer__grid,
  .resource-grid,
  .product-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .metric-grid,
  .grid-4,
  .timeline {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 920px) {
  :root {
    --container: min(1200px, calc(100vw - 32px));
    --header-h: 76px;
  }

  .section {
    padding: 88px 0;
  }

  .site-nav__list,
  .site-header__actions .lang-switch,
  .site-header__actions .btn--primary {
    display: none;
  }

  .mobile-toggle {
    display: inline-flex;
  }

  .mobile-nav {
    display: block;
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition);
    background: rgba(11, 49, 37, 0.98);
  }

  .mobile-nav.is-open {
    max-height: 420px;
  }

  .mobile-nav__list {
    list-style: none;
    margin: 0;
    padding: 0 24px 24px;
    display: grid;
    gap: 10px;
  }

  .mobile-nav__list a {
    display: block;
    padding: 14px 0;
    color: rgba(248, 239, 226, 0.84);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    font-weight: 700;
  }

  .hero-home {
    min-height: auto;
    padding: 56px 0 36px;
  }

  .hero-home__grid,
  .grid-2,
  .grid-3,
  .grid-4,
  .split-layout,
  .metric-grid,
  .resource-grid,
  .product-grid,
  .contact-grid,
  .footer__grid,
  .timeline {
    grid-template-columns: 1fr;
  }

  .form-grid {
    grid-template-columns: 1fr;
  }

  .form-grid .field-span-2 {
    grid-column: auto;
  }

  .media-frame {
    min-height: 320px;
  }
}

@media (max-width: 640px) {
  .section,
  .section--tight {
    padding: 72px 0;
  }

  .hero-home__title {
    font-size: clamp(2.8rem, 16vw, 4.4rem);
  }

  .page-hero {
    min-height: 440px;
    padding: 64px 0 52px;
  }

  .page-hero__title {
    font-size: clamp(2.3rem, 11vw, 3.2rem);
  }

  .hero-home__panel,
  .card,
  .resource-card__body,
  .product-card__body {
    padding: 22px;
  }

  .site-brand__title {
    font-size: 1.48rem;
  }

  .actions {
    flex-direction: column;
    align-items: stretch;
  }

  .btn {
    width: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    transition-duration: 0s !important;
    animation-duration: 0s !important;
  }

  [data-reveal] {
    opacity: 1;
    transform: none;
  }
}