:root {
  --bg: #09111a;
  --panel: rgba(13, 24, 37, 0.9);
  --panel-soft: rgba(18, 31, 46, 0.78);
  --text: #eef3f8;
  --muted: #a4b7c8;
  --line: rgba(255, 255, 255, 0.09);
  --brand: #f7b733;
  --brand-deep: #fc8f2b;
  --accent: #6fd3ff;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.35);
  --radius-xl: 28px;
  --radius-lg: 22px;
  --site-width: 1140px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--text);
  font-family: "Noto Sans TC", "Noto Sans JP", "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at top left, rgba(247, 183, 51, 0.16), transparent 26%),
    radial-gradient(circle at top right, rgba(111, 211, 255, 0.14), transparent 24%),
    linear-gradient(180deg, #08111a 0%, #0c1824 50%, #08111a 100%);
  min-height: 100vh;
}

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

.page-shell,
.site-header-inner,
.site-footer-inner {
  width: min(calc(100% - 32px), var(--site-width));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(18px);
  background: rgba(7, 13, 20, 0.7);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.site-header-inner {
  padding: 16px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
}

.brand-lockup { display: flex; flex-direction: column; gap: 4px; }

.brand-kicker {
  color: var(--brand);
  font-family: "Space Grotesk", sans-serif;
  font-size: 0.78rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

.brand-title {
  font-family: "Space Grotesk", "Noto Sans TC", sans-serif;
  font-weight: 700;
  font-size: 1.05rem;
}

.header-tools { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }

.site-nav,
.lang-switcher,
.social-links,
.button-stack,
.quick-links,
.meta-row,
.quick-link-list,
.feature-list {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.site-nav a,
.lang-button,
.button,
.social-link,
.store-link,
.link-card,
.product-tab {
  transition: transform 180ms ease, background-color 180ms ease, border-color 180ms ease, color 180ms ease;
}

.site-nav a {
  color: var(--muted);
  text-decoration: none;
  padding: 10px 14px;
  border-radius: 999px;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  color: var(--text);
  background: rgba(255, 255, 255, 0.08);
}

.lang-switcher {
  padding: 5px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.lang-button {
  border: 0;
  background: transparent;
  color: var(--muted);
  min-width: 56px;
  padding: 8px 12px;
  border-radius: 999px;
  cursor: pointer;
  font: inherit;
}

.lang-button.is-active {
  background: linear-gradient(135deg, var(--brand), var(--brand-deep));
  color: #1d1304;
  font-weight: 700;
}

.hero,
.page-hero {
  padding: 42px 0 24px;
}

.hero-card,
.content-card,
.product-rail {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.03));
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.hero-multi { padding-top: 56px; }

.product-layout {
  display: grid;
  grid-template-columns: minmax(280px, 360px) minmax(0, 1fr);
  gap: 24px;
  align-items: start;
}

.product-rail {
  padding: 24px;
  position: sticky;
  top: 104px;
}

.rail-heading h2 {
  margin: 12px 0 10px;
  font-family: "Space Grotesk", "Noto Sans TC", sans-serif;
  font-size: clamp(1.65rem, 3vw, 2.5rem);
}

.rail-heading p {
  margin: 0;
  color: var(--muted);
  line-height: 1.7;
}

.product-switcher { display: grid; gap: 12px; margin-top: 22px; }

.product-tab {
  width: 100%;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.03);
  border-radius: 22px;
  padding: 18px;
  text-align: left;
  color: var(--text);
  cursor: pointer;
}

.product-tab.is-active {
  border-color: rgba(247, 183, 51, 0.65);
  background: linear-gradient(135deg, rgba(247, 183, 51, 0.16), rgba(111, 211, 255, 0.08));
  transform: translateY(-2px);
}

.product-tab-name,
.product-tab-meta { display: block; }
.product-tab-name { font-size: 1.05rem; font-weight: 700; }
.product-tab-meta { margin-top: 6px; color: var(--muted); font-size: 0.92rem; }

.hero-media { position: relative; }

.hero-media::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 42%;
  background: linear-gradient(180deg, transparent, rgba(9, 17, 26, 0.88));
}

.hero-media-product {
  min-height: 320px;
  background:
    radial-gradient(circle at 20% 18%, rgba(247, 183, 51, 0.25), transparent 30%),
    radial-gradient(circle at 82% 24%, rgba(111, 211, 255, 0.28), transparent 24%),
    linear-gradient(135deg, #0d1824 8%, #132738 52%, #0b121c 100%);
}

.hero-banner {
  width: 100%;
  min-height: 260px;
  max-height: 420px;
  object-fit: cover;
}

.hero-banner-placeholder {
  object-fit: contain;
  padding: 48px;
  opacity: 0.25;
  filter: saturate(0.6);
}

.feature-chip,
.feature-chip {
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  padding: 0 14px;
  border-radius: 999px;
  font-size: 0.92rem;
}

.feature-chip {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: var(--text);
}

.hero-body { display: block; padding: 28px 32px 32px; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  padding: 8px 14px;
  border-radius: 999px;
  background: rgba(247, 183, 51, 0.12);
  color: #ffd987;
  font-size: 0.92rem;
}

.hero h1,
.page-hero h1 {
  margin: 16px 0 14px;
  font-family: "Space Grotesk", "Noto Sans TC", sans-serif;
  font-size: clamp(2.6rem, 6vw, 4.6rem);
  line-height: 0.95;
}

.hero p,
.page-hero p,
.content-card p,
.content-card li {
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.75;
}

.hero-copy { max-width: 68ch; }
.feature-list { margin-top: 18px; }
.button-stack { margin-top: 22px; }
.button-stack-stores { gap: 16px; }

.store-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 56px;
  padding: 12px 18px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  text-decoration: none;
  font-weight: 700;
}

.store-link img {
  height: 56px;
  width: auto;
}

.quick-links { margin-top: 18px; gap: 10px; }

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0 20px;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 700;
}

.button-primary {
  background: linear-gradient(135deg, var(--brand), var(--brand-deep));
  color: #1d1304;
}

.button-secondary {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text);
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.legal-grid { display: grid; gap: 18px; }

.info-strip,
.link-card {
  background: var(--panel-soft);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-lg);
}

.content-card-inner,
.link-card { padding: 22px 24px; }

.social-links-panel { margin-top: 20px; gap: 10px; }

.social-link {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-height: 56px;
  padding: 0 16px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  text-decoration: none;
}

.social-link img { width: 24px; height: 24px; }
.content-card { margin-bottom: 22px; }

.content-card h2 {
  margin: 0 0 12px;
  font-family: "Space Grotesk", "Noto Sans TC", sans-serif;
  font-size: clamp(1.45rem, 3vw, 2rem);
}

.meta-row { margin-top: 16px; color: var(--muted); font-size: 0.95rem; }
.quick-link-list { margin-top: 16px; }

.link-card {
  text-decoration: none;
  display: block;
}

.link-card strong {
  display: block;
  font-size: 1.08rem;
  margin-bottom: 10px;
}

.link-card span { color: var(--muted); line-height: 1.7; }
.content-card ul { margin: 0; padding-left: 20px; }
.content-card li + li { margin-top: 8px; }

.site-footer { padding: 24px 0 48px; }

.site-footer-inner {
  color: var(--muted);
  display: flex;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
  font-size: 0.95rem;
}

.site-footer a { color: var(--text); text-decoration: none; }

.site-nav a:hover,
.lang-button:hover,
.button:hover,
.social-link:hover,
.store-link:hover,
.link-card:hover,
.product-tab:hover {
  transform: translateY(-2px);
}

@media (max-width: 920px) {
  .product-layout { grid-template-columns: 1fr; }
  .product-rail { position: static; }
}

@media (max-width: 720px) {
  .site-header-inner {
    align-items: flex-start;
    flex-direction: column;
  }

  .header-tools {
    width: 100%;
    align-items: flex-start;
    flex-direction: column;
  }

  .hero,
  .page-hero { padding-top: 28px; }

  .hero-body,
  .content-card-inner,
  .link-card,
  .product-rail { padding: 22px; }

  .hero-banner { min-height: 220px; }
}