:root {
  --ink: #18212a;
  --muted: #66727d;
  --line: #dce2e5;
  --paper: #fbfaf7;
  --white: #ffffff;
  --teal: #0f766e;
  --teal-dark: #0b514d;
  --gold: #b88932;
  --shadow: 0 18px 55px rgba(24, 33, 42, 0.12);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-width: 320px;
  color: var(--ink);
  background: var(--paper);
  font-family: "Noto Sans TC", "Microsoft JhengHei", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.75;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid rgba(220, 226, 229, 0.9);
  background: rgba(251, 250, 247, 0.94);
  backdrop-filter: blur(14px);
}

.nav,
.wrap {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
}

.nav {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
}

.brand-logo {
  width: 96px;
  height: 52px;
  object-fit: contain;
}

.brand-name {
  display: block;
  color: var(--teal-dark);
  font-size: 1.12rem;
  font-weight: 900;
  line-height: 1.2;
}

.brand-subtitle {
  display: block;
  color: var(--gold);
  font-size: 0.98rem;
  font-weight: 900;
  line-height: 1.25;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 22px;
  color: #394650;
  font-size: 0.95rem;
  font-weight: 700;
}

.button-primary,
.button-secondary,
.nav-cta {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  font-weight: 800;
}

.button-primary,
.nav-cta {
  padding: 0 18px;
  color: var(--white);
  background: var(--teal);
  box-shadow: 0 10px 24px rgba(15, 118, 110, 0.24);
}

.button-secondary {
  padding: 0 18px;
  border: 1px solid rgba(24, 33, 42, 0.18);
  background: rgba(255, 255, 255, 0.84);
}

.hero {
  padding: 82px 0 58px;
  color: var(--white);
  background:
    linear-gradient(90deg, rgba(24, 33, 42, 0.88), rgba(15, 81, 77, 0.74)),
    url("images/hero-showroom-wall.jpg") center/cover;
}

.breadcrumb {
  display: inline-flex;
  margin-bottom: 18px;
  color: rgba(255, 255, 255, 0.78);
  font-size: 0.95rem;
  font-weight: 800;
}

.eyebrow {
  margin: 0 0 12px;
  color: #f1c77a;
  font-size: 0.92rem;
  font-weight: 900;
}

h1 {
  max-width: 880px;
  margin: 0;
  font-size: clamp(2.25rem, 6vw, 4.5rem);
  line-height: 1.08;
}

.hero-copy {
  max-width: 760px;
  margin: 20px 0 0;
  color: rgba(255, 255, 255, 0.9);
  font-size: clamp(1.05rem, 2vw, 1.22rem);
}

.section {
  padding: 72px 0;
}

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

.article-card {
  display: grid;
  gap: 12px;
  min-height: 100%;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  box-shadow: 0 8px 28px rgba(24, 33, 42, 0.06);
}

.article-card strong {
  color: var(--teal-dark);
  font-size: 0.9rem;
}

.article-card h2 {
  margin: 0;
  font-size: 1.35rem;
  line-height: 1.35;
}

.article-card p {
  margin: 0;
  color: var(--muted);
}

.article-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: 36px;
  align-items: start;
}

.article-body {
  padding: 34px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  box-shadow: 0 8px 28px rgba(24, 33, 42, 0.06);
}

.article-body p {
  margin: 0 0 18px;
}

.article-body h2 {
  margin: 34px 0 14px;
  color: var(--teal-dark);
  font-size: 1.35rem;
}

.side-card {
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  position: sticky;
  top: 96px;
}

.side-card h2 {
  margin: 0 0 12px;
  font-size: 1.2rem;
}

.side-card p {
  margin: 0 0 18px;
  color: var(--muted);
}

.cta-band {
  margin-top: 28px;
  padding: 24px;
  border-radius: 8px;
  color: var(--white);
  background: linear-gradient(90deg, var(--teal-dark), #265b8f);
}

.cta-band p {
  margin: 0 0 16px;
  color: rgba(255, 255, 255, 0.9);
}

footer {
  padding: 26px 0;
  border-top: 1px solid var(--line);
  color: #66727d;
  background: var(--white);
}

@media (max-width: 900px) {
  .nav {
    align-items: flex-start;
    flex-direction: column;
    padding: 12px 0;
  }

  .nav-links {
    width: 100%;
    overflow-x: auto;
    gap: 14px;
    padding-bottom: 4px;
  }

  .article-grid,
  .article-layout {
    grid-template-columns: 1fr;
  }

  .side-card {
    position: static;
  }
}