:root {
  color-scheme: light;
  --background: #f7f7f7;
  --surface: #ffffff;
  --citi-blue: #003b70;
  --citi-red: #d9261c;
  --ink: #142b43;
  --muted: #687786;
  --line: #dde3e8;
  --shadow: 0 14px 40px rgb(0 59 112 / 8%);
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-synthesis: none;
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
  background: var(--background);
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  margin: 0;
  color: var(--ink);
  background: var(--background);
}

button,
input {
  font: inherit;
}

.skip-link {
  position: fixed;
  top: 0.75rem;
  left: 0.75rem;
  z-index: 20;
  padding: 0.7rem 1rem;
  color: var(--surface);
  background: var(--citi-blue);
  border-radius: 0.65rem;
  transform: translateY(-200%);
}

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

.masthead,
.page-shell {
  width: min(960px, 100%);
  margin-inline: auto;
}

.masthead {
  display: grid;
  justify-items: center;
  padding: max(clamp(5rem, 18vh, 9rem), env(safe-area-inset-top))
    max(1.25rem, env(safe-area-inset-right)) 2rem max(1.25rem, env(safe-area-inset-left));
}

.brand {
  display: flex;
  gap: 1rem;
  align-items: center;
  justify-content: center;
  color: var(--citi-blue);
  text-decoration: none;
}

.brand-logo {
  display: block;
  width: clamp(4.75rem, 7vw, 6.25rem);
  height: auto;
  flex: 0 0 auto;
}

h1 {
  margin: 0;
  font-size: clamp(1.15rem, 1.8vw, 1.45rem);
  font-weight: 700;
  letter-spacing: 0.04em;
  white-space: nowrap;
}

.date-search {
  display: grid;
  grid-template-columns: minmax(15rem, 1fr) auto;
  gap: 0.7rem;
  width: min(31rem, 100%);
  margin-top: 2rem;
}

.visually-hidden-date {
  position: fixed;
  left: -100vw;
  width: 1px;
  height: 1px;
  opacity: 0;
}

.button {
  display: inline-flex;
  gap: 0.7rem;
  align-items: center;
  justify-content: center;
  min-height: 3.35rem;
  padding: 0.75rem 1.2rem;
  font-size: 0.95rem;
  font-weight: 750;
  border: 1px solid transparent;
  border-radius: 0.9rem;
  cursor: pointer;
  transition: transform 160ms ease, box-shadow 160ms ease;
}

.button-date {
  justify-content: space-between;
  color: var(--citi-blue);
  background: var(--surface);
  border-color: var(--line);
  box-shadow: 0 5px 18px rgb(0 59 112 / 5%);
}

.button-date span {
  color: var(--muted);
  font-size: 0.86rem;
  font-variant-numeric: tabular-nums;
}

.button-primary {
  min-width: 6rem;
  color: var(--surface);
  background: var(--citi-blue);
}

.button:hover {
  transform: translateY(-1px);
  box-shadow: 0 7px 20px rgb(0 59 112 / 10%);
}

.button:focus-visible,
.source-link:focus-visible,
.brand:focus-visible {
  outline: 3px solid var(--citi-red);
  outline-offset: 3px;
}

.status {
  min-height: 1.3rem;
  margin: 0.65rem 0 0;
  color: var(--citi-red);
  font-size: 0.78rem;
  text-align: center;
}

.page-shell {
  min-height: 24rem;
  padding: 1rem max(1.25rem, env(safe-area-inset-right)) max(3rem, env(safe-area-inset-bottom))
    max(1.25rem, env(safe-area-inset-left));
}

.empty-state {
  padding: 4rem 1rem;
  text-align: center;
}

.empty-state h2 {
  margin: 0;
  color: var(--muted);
  font-size: 1rem;
  font-weight: 600;
}

.news-list {
  display: grid;
  gap: 1rem;
}

.news-card {
  padding: clamp(1.35rem, 4vw, 2.25rem);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 1.2rem;
  box-shadow: var(--shadow);
}

.news-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  align-items: center;
  color: var(--muted);
  font-size: 0.76rem;
}

.news-meta span:not(:first-child)::before {
  margin-right: 0.55rem;
  content: "•";
  color: var(--line);
}

.news-index {
  display: inline-grid;
  width: 2rem;
  height: 2rem;
  place-items: center;
  color: var(--surface);
  font-weight: 800;
  background: var(--citi-blue);
  border-radius: 0.6rem;
}

.bilingual-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(1.5rem, 4vw, 3.5rem);
  margin-top: 1.5rem;
}

.bilingual-grid section + section {
  padding-left: clamp(1.5rem, 4vw, 3.5rem);
  border-left: 1px solid var(--line);
}

.language-label {
  margin: 0 0 0.7rem;
  color: var(--citi-red);
  font-size: 0.67rem;
  font-weight: 800;
  letter-spacing: 0.12em;
}

.news-card h3 {
  margin: 0;
  font-size: clamp(1.25rem, 2.4vw, 1.65rem);
  line-height: 1.38;
  letter-spacing: -0.02em;
}

.summary-zh,
.summary-en {
  margin: 0.9rem 0 0;
  color: #48596a;
  line-height: 1.75;
}

.summary-en {
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.02rem;
}

.source-link {
  display: inline-flex;
  gap: 0.4rem;
  align-items: center;
  min-height: 2.75rem;
  margin-top: 1rem;
  color: var(--citi-blue);
  font-size: 0.8rem;
  font-weight: 750;
  text-decoration: none;
}

.source-link span:first-child {
  color: var(--muted);
  font-weight: 500;
}

[hidden] {
  display: none !important;
}

@media (max-width: 700px) {
  .bilingual-grid {
    grid-template-columns: 1fr;
  }

  .bilingual-grid section + section {
    padding-top: 1.4rem;
    padding-left: 0;
    border-top: 1px solid var(--line);
    border-left: 0;
  }
}

@media (max-width: 520px) {
  .masthead {
    padding-top: max(3rem, env(safe-area-inset-top));
    padding-right: max(1rem, env(safe-area-inset-right));
    padding-left: max(1rem, env(safe-area-inset-left));
  }

  .brand-logo {
    width: 4.5rem;
  }

  h1 {
    font-size: 1.05rem;
  }

  .date-search {
    grid-template-columns: 1fr;
    margin-top: 1.5rem;
  }

  .date-search .button {
    width: 100%;
    min-height: 3.4rem;
  }

  .page-shell {
    padding-top: 0.25rem;
    padding-right: max(1rem, env(safe-area-inset-right));
    padding-left: max(1rem, env(safe-area-inset-left));
  }

  .news-card {
    padding: 1.15rem;
    border-radius: 1rem;
  }

  .news-card h3 {
    font-size: 1.22rem;
  }
}

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

  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
  }
}