* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  min-width: 320px;
  margin: 0;
  color: var(--text-main);
  background: var(--page-background);
  font-family:
    "Arial Narrow", Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont,
    "Segoe UI", "Noto Sans TC", sans-serif;
  line-height: 1.7;
  text-rendering: optimizeLegibility;
}

a {
  color: inherit;
}

.skip-link {
  position: fixed;
  z-index: 999;
  top: 0.75rem;
  left: 0.75rem;
  padding: 0.6rem 0.9rem;
  border: 2px solid var(--surface);
  border-radius: 0.65rem;
  color: var(--surface);
  background: var(--club-primary-strong);
  transform: translateY(-180%);
}

.skip-link:focus {
  transform: translateY(0);
}

.site-hero {
  position: relative;
  display: grid;
  min-height: min(760px, 86vh);
  align-items: center;
  overflow: hidden;
  padding: clamp(4.75rem, 12vw, 8rem) 0;
  border-bottom: 2px solid var(--surface);
  color: var(--surface);
  background: var(--club-primary-strong);
  isolation: isolate;
}

.site-hero::before,
.site-hero::after {
  position: absolute;
  z-index: -1;
  width: 18rem;
  height: 18rem;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 0;
  content: "";
  opacity: 1;
  transform: rotate(12deg);
}

.site-hero::before {
  top: -9rem;
  left: -7rem;
}

.site-hero::after {
  right: -10rem;
  bottom: -9rem;
  transform: rotate(-10deg);
}

.hero-grid {
  display: grid;
  gap: clamp(2.5rem, 7vw, 6.5rem);
  align-items: center;
}

.hero-copy {
  width: 100%;
  max-width: none;
  text-align: center;
}

.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  margin-bottom: 1.3rem;
  color: var(--surface);
  font-size: 0.8rem;
  font-weight: 900;
  letter-spacing: 0.18em;
}

.hero-kicker::before {
  width: 2.25rem;
  height: 2px;
  background: var(--surface);
  content: "";
}

.display-title {
  max-width: none;
  margin: 0;
  font-size: clamp(3rem, 11vw, 6.5rem);
  font-weight: 900;
  letter-spacing: -0.04em;
  line-height: 0.98;
  white-space: nowrap;
}

.hero-subtitle {
  margin: 1.3rem 0 0;
  color: var(--surface);
  font-size: clamp(1rem, 4.2vw, 1.35rem);
  font-weight: 900;
  letter-spacing: 0.2em;
}

.hero-description {
  max-width: 42rem;
  margin: 1.6rem 0 0;
  color: #c8c6c1;
  font-size: clamp(1.05rem, 2.3vw, 1.25rem);
}

.content-section {
  padding: clamp(4.5rem, 10vw, 7rem) 0;
  border-top: 1px solid var(--line-color);
  color: var(--text-main);
  background: var(--surface);
}

.section-tinted {
  border-color: var(--line-color);
  color: var(--text-main);
  background: var(--surface);
}

.section-heading {
  display: flex;
  gap: 1rem;
  align-items: center;
  margin-bottom: 1.15rem;
  padding-bottom: 1rem;
  border-bottom: 2px solid currentColor;
}

.section-number {
  display: inline-grid;
  min-width: 2.25rem;
  min-height: 2.25rem;
  place-items: center;
  border: 2px solid currentColor;
  color: inherit;
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.08em;
  line-height: 1;
}

.section-title {
  margin: 0;
  font-size: clamp(1.85rem, 5vw, 2.8rem);
  font-weight: 900;
  letter-spacing: 0.035em;
}

.section-description {
  max-width: 50rem;
  margin: 0 0 1rem 2.65rem;
  color: var(--text-muted);
  font-size: 1.05rem;
}

.section-tinted .section-description {
  color: var(--text-muted);
}

.link-card {
  position: relative;
  display: flex;
  min-height: 5rem;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.75rem 1.35rem;
  border: 2px solid var(--club-primary-strong);
  border-radius: var(--button-radius);
  color: var(--club-primary-strong);
  background: var(--surface);
  box-shadow: none;
  font-weight: 900;
  letter-spacing: 0.04em;
  text-decoration: none;
  transition:
    color 160ms ease,
    background-color 160ms ease,
    box-shadow 160ms ease,
    transform 160ms ease;
}

.link-card:hover {
  border-color: var(--club-primary-strong);
  color: var(--surface);
  background: var(--club-primary-strong);
  box-shadow: 8px 8px 0 var(--surface-soft);
  transform: translate(-3px, -3px);
}

.link-card:focus-visible {
  outline: 3px solid currentColor;
  outline-offset: 3px;
}

.section-tinted .link-card {
  border-color: var(--club-primary-strong);
  color: var(--club-primary-strong);
  background: var(--surface);
}

.section-tinted .link-card:hover {
  color: var(--surface);
  background: var(--club-primary-strong);
  box-shadow: 8px 8px 0 var(--surface-soft);
}

.link-card-disabled {
  color: inherit;
  cursor: not-allowed;
  opacity: 0.52;
}

.link-arrow {
  display: grid;
  width: 2.2rem;
  height: 2.2rem;
  flex: 0 0 auto;
  place-items: center;
  border: 2px solid currentColor;
  border-radius: 999px;
  color: inherit;
  background: transparent;
  font-size: 1.1rem;
}

.site-footer {
  padding: 1rem 0;
  border-top: 2px solid var(--surface);
  color: #b9b7b2;
  background: var(--club-primary-strong);
  font-size: 0.9rem;
}

.footer-note {
  width: min(100%, 22rem);
  max-width: 100%;
  flex: 0 0 auto;
  color: #777570;
}

.footer-copyright {
  flex: 0 0 auto;
  align-self: center;
  white-space: nowrap;
}

.footer-logo-link {
  display: inline-flex;
  width: 100%;
  padding: 0.55rem 0.75rem;
  border-radius: 0.7rem;
  background: var(--surface);
  transition: transform 160ms ease;
}

.footer-logo-link:hover {
  transform: translateY(-2px);
}

.footer-logo-link:focus-visible {
  outline: 3px solid var(--surface);
  outline-offset: 3px;
}

.footer-logo {
  display: block;
  width: 100%;
  height: auto;
}

.loading-state,
.error-state {
  display: grid;
  min-height: 70vh;
  place-items: center;
}

.loading-card,
.error-card {
  width: min(100%, 42rem);
  padding: clamp(1.4rem, 5vw, 2.6rem);
  border: 2px solid var(--line-color);
  border-radius: var(--card-radius);
  background: var(--surface);
  box-shadow: var(--card-shadow);
}

.loading-card {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  color: var(--text-muted);
}

.loading-dot {
  width: 0.75rem;
  height: 0.75rem;
  border-radius: 50%;
  background: var(--club-primary-strong);
  animation: pulse 1.15s ease-in-out infinite alternate;
}

.error-label {
  margin-bottom: 0.65rem;
  color: var(--club-primary-strong);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.12em;
}

.error-title {
  margin-bottom: 1rem;
  font-size: clamp(1.65rem, 5vw, 2.35rem);
  font-weight: 900;
  letter-spacing: -0.02em;
}

.error-description {
  color: var(--text-muted);
}

@keyframes pulse {
  from {
    opacity: 0.35;
    transform: scale(0.85);
  }

  to {
    opacity: 1;
    transform: scale(1.08);
  }
}

@media (max-width: 575.98px) {
  .site-hero {
    min-height: auto;
  }

  .section-description {
    margin-left: 0;
  }
}

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

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}