:root {
  --color-bg: #FBF7F2;
  --color-bg-alt: #F1E7DC;
  --color-text: #2B2420;
  --color-text-soft: #6B5F55;
  --color-accent: #C17767;
  --color-accent-dark: #A15D4F;
  --color-sage: #8A9A7E;
  --color-card-bg: #FFFFFF;
  --font-display: 'Noto Serif TC', serif;
  --font-body: 'Noto Sans TC', sans-serif;
  --radius-md: 12px;
  --radius-lg: 20px;
  --shadow-card: 0 8px 24px rgba(43, 36, 32, 0.08);
  --max-width: 1080px;
}

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

html, body {
  margin: 0;
  padding: 0;
}

body {
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 700;
  margin: 0 0 0.5em;
  line-height: 1.3;
}

p {
  margin: 0 0 1em;
}

a {
  color: inherit;
}

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

.wrap {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* ---- Header ---- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(251, 247, 242, 0.92);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid rgba(43, 36, 32, 0.08);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 14px;
  padding-bottom: 14px;
}

.brand-mark {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.1rem;
}

.lang-toggle {
  border: 1px solid var(--color-accent);
  background: transparent;
  color: var(--color-accent-dark);
  border-radius: 999px;
  padding: 6px 16px;
  font-family: var(--font-body);
  font-size: 0.85rem;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease;
}

.lang-toggle:hover {
  background: var(--color-accent);
  color: #fff;
}

/* ---- Sections & scroll-in animation ---- */
.section {
  padding: 88px 0;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.section.is-visible {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  .section {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

.section-alt {
  background: var(--color-bg-alt);
}

/* ---- Hero ---- */
.hero {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  align-items: center;
  gap: 48px;
  padding-top: 64px;
  max-width: var(--max-width);
  margin: 0 auto;
  padding-left: 24px;
  padding-right: 24px;
}

.hero-inner {
  max-width: none;
  padding: 0;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-accent-dark);
  font-size: 0.85rem;
  margin-bottom: 12px;
}

.hero-tagline {
  font-size: 2.6rem;
  margin-bottom: 16px;
}

.hero-sub {
  color: var(--color-text-soft);
  font-size: 1.1rem;
  margin-bottom: 28px;
}

.hero-media img {
  width: 100%;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  object-position: 26% center;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
}

.btn {
  display: inline-block;
  text-decoration: none;
  font-family: var(--font-body);
  font-weight: 500;
  padding: 12px 28px;
  border-radius: 999px;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.btn-primary {
  background: var(--color-accent);
  color: #fff;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-card);
}

/* ---- About ---- */
.about-inner {
  max-width: 720px;
}

.pullquote {
  font-family: var(--font-display);
  font-size: 1.5rem;
  color: var(--color-accent-dark);
  border-left: 3px solid var(--color-accent);
  padding-left: 20px;
  margin: 0 0 24px;
}

.about-body {
  color: var(--color-text-soft);
  font-size: 1.05rem;
}

.about-social {
  display: flex;
  gap: 14px;
  margin-top: 24px;
}

.social-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--color-card-bg);
  box-shadow: var(--shadow-card);
  color: var(--color-accent-dark);
  transition: transform 0.2s ease, background 0.2s ease, color 0.2s ease;
}

.social-icon svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
}

.social-icon:hover {
  background: var(--color-accent);
  color: #fff;
  transform: translateY(-2px);
}

/* ---- Stats ---- */
.stats-updated {
  color: var(--color-text-soft);
  font-size: 0.9rem;
  margin-bottom: 24px;
}

.stat-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 40px;
}

.stat-grid-audience {
  margin-bottom: 0;
}

.stat-tile {
  background: var(--color-card-bg);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
  padding: 28px 20px;
  text-align: center;
}

.stat-tile-sm {
  padding: 20px 16px;
}

.stat-value {
  display: block;
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-accent-dark);
}

.stat-label {
  display: block;
  color: var(--color-text-soft);
  font-size: 0.9rem;
  margin-top: 6px;
}

/* ---- Services ---- */
.service-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.service-card {
  background: var(--color-card-bg);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
  padding: 24px 16px;
  text-align: center;
  font-weight: 500;
}

/* ---- Case studies ---- */
.case-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin-bottom: 40px;
}

.case-card {
  display: block;
  background: var(--color-card-bg);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
  padding: 20px;
  text-decoration: none;
  color: var(--color-text);
  transition: transform 0.2s ease;
}

.case-card:hover {
  transform: translateY(-3px);
}

.case-card h4 {
  font-family: var(--font-display);
  font-size: 1.05rem;
  margin-bottom: 8px;
}

.case-card p {
  color: var(--color-text-soft);
  font-size: 0.92rem;
  margin-bottom: 0;
}

.case-card-image {
  width: 100%;
  aspect-ratio: 9 / 16;
  object-fit: cover;
  border-radius: var(--radius-md);
  margin-bottom: 14px;
}

.case-metrics {
  display: flex;
  gap: 16px;
  margin-top: 12px;
  font-size: 0.85rem;
  color: var(--color-accent-dark);
  font-weight: 500;
}

/* ---- Contact ---- */
.contact-inner {
  max-width: 560px;
  text-align: center;
}

.contact-inner .btn {
  margin: 12px 0 24px;
}

.contact-links {
  display: flex;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
  font-size: 0.92rem;
}

.contact-links a {
  text-decoration: none;
  color: var(--color-accent-dark);
}

/* ---- Footer ---- */
.site-footer {
  padding: 32px 0;
  text-align: center;
  color: var(--color-text-soft);
  font-size: 0.85rem;
}

/* ---- Responsive ---- */
@media (max-width: 860px) {
  .hero {
    grid-template-columns: 1fr;
  }

  .hero-media {
    order: -1;
  }

  .hero-media img {
    aspect-ratio: auto;
  }

  .stat-grid,
  .service-grid,
  .case-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 560px) {
  .hero-tagline {
    font-size: 2rem;
  }

  .stat-grid,
  .service-grid,
  .case-grid {
    grid-template-columns: 1fr;
  }

  .section {
    padding-top: 56px;
    padding-bottom: 56px;
  }
}