/* Shared components: header, footer, CTA, NewsList */

/* ----- Header ----- */
.site-header {
  padding: 1.5rem 8vw;
  border-bottom: 1px solid var(--hairline);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

.site-logo {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-display);
  font-size: 1rem;
  letter-spacing: 0.05em;
  color: var(--text-on-light);
}

.site-logo__img {
  height: 2rem;
  width: auto;
  display: block;
  object-fit: contain;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.site-nav a {
  font-family: var(--font-display);
  font-size: 0.75rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  transition: color var(--transition-fast) var(--ease-out);
}

.site-nav a:hover { color: var(--brand-gold); }

@media (max-width: 767px) {
  .site-header {
    flex-wrap: wrap;
    padding: 0.875rem 4vw;
    gap: 0.5rem;
    min-height: 0;
  }
  .site-logo {
    order: 1;
    flex-shrink: 1;
    min-width: 0;
    font-size: 0.8125rem;
    gap: 0.35rem;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }
  .site-logo__img {
    height: 1.5rem;
    flex-shrink: 0;
  }
  .lang-switcher {
    order: 2;
    margin-left: auto;
    flex-shrink: 0;
    font-size: 0.6875rem;
    gap: 0.35rem;
  }
  .nav-toggle {
    order: 3;
    display: block;
    background: none;
    border: 0;
    font: inherit;
    color: inherit;
    cursor: pointer;
    padding: 0.4rem;
    min-width: 40px;
    min-height: 40px;
    flex-shrink: 0;
  }
  /* 菜单在 header 之下整行展开，不挤在右侧 */
  .site-nav {
    order: 4;
    display: none;
    width: 100%;
    flex-basis: 100%;
    flex-direction: column;
    gap: 0;
    padding-top: 0.5rem;
    margin-top: 0;
    border-top: 1px solid var(--hairline);
  }
  .site-header.is-nav-open .site-nav { display: flex; }
  .site-nav a { padding: 0.875rem 0; min-height: 44px; display: flex; align-items: center; font-size: 0.875rem; }
}

@media (min-width: 768px) {
  .nav-toggle { display: none; }
}

.lang-switcher {
  display: flex;
  gap: 0.5rem;
  font-size: 0.75rem;
  letter-spacing: 0.05em;
}

.lang-switcher a {
  opacity: 0.6;
  transition: opacity var(--transition-fast) var(--ease-out);
}

.lang-switcher a:hover,
.lang-switcher a[aria-current="true"] { opacity: 1; }

/* ----- Footer ----- */
.site-footer {
  padding: 3rem 8vw 2rem;
  border-top: 1px solid var(--hairline);
  font-size: 0.875rem;
}

.site-footer .connect {
  font-family: var(--font-display);
  letter-spacing: 0.05em;
  margin-bottom: 0.5rem;
}

.site-footer a[href^="mailto"] {
  border-bottom: 1px solid var(--hairline);
  transition: border-color var(--transition-fast) var(--ease-out);
}

.site-footer a[href^="mailto"]:hover { border-color: var(--brand-gold); }

.site-footer .copy {
  margin-top: 2rem;
  padding-top: 1rem;
  border-top: 1px solid var(--hairline);
  font-size: 0.75rem;
  color: var(--text-on-light);
  opacity: 0.8;
}

/* ----- NewsList (accordion, Ma aesthetic) ----- */
.news-list {
  max-width: 1200px;
  margin: 0 auto;
}

.news-list__items {
  list-style: none;
  padding: 0;
  margin: 0;
}

.news-list__empty {
  font-family: var(--font-body);
  color: var(--text-on-light);
  opacity: 0.8;
}

.news-list__item {
  border-bottom: 1px solid var(--hairline);
  transition: border-color var(--transition-fast) var(--ease-out);
}

.news-list__item:hover {
  border-bottom-color: rgba(13, 27, 42, 0.35);
}

.news-list__row {
  display: grid;
  grid-template-columns: 5.5rem 1fr auto;
  gap: 2rem;
  align-items: baseline;
  padding: 1.25rem 0;
  cursor: pointer;
  text-align: left;
  width: 100%;
  background: none;
  border: 0;
  font: inherit;
  color: inherit;
  transition: transform var(--transition-fast) var(--ease-out);
}

.news-list__row:hover .news-list__title { transform: translateX(8px); }

.news-list__date {
  font-family: var(--font-display);
  font-size: 0.75rem;
  color: var(--brand-gold);
  letter-spacing: 0.05em;
}

.news-list__title {
  font-size: clamp(0.9375rem, 2vw, 1.125rem);
  line-height: 1.35;
  transition: transform var(--transition-fast) var(--ease-out);
}

/* CN: Noto Serif SC */
.news-list__title--cn {
  font-family: var(--font-cn);
}

/* EN/JP: Cinzel, uppercase for pure visual balance */
.news-list__title--en {
  font-family: var(--font-display);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.news-list__expand {
  font-size: 1rem;
  color: var(--text-on-light);
  opacity: 0.5;
  line-height: 1;
  flex-shrink: 0;
  transition: transform var(--transition-reveal) var(--ease-out), opacity var(--transition-fast) var(--ease-out);
}

.news-list__item.is-open .news-list__expand {
  transform: rotate(45deg); /* + becomes × or rotate for ↓ */
  opacity: 0.8;
}

.news-list__summary-wrap {
  overflow: hidden;
  max-height: 0;
  transition: max-height var(--transition-reveal) var(--ease-out);
}

.news-list__item.is-open .news-list__summary-wrap {
  max-height: 600px; /* smooth expand; enough for long summaries */
}

.news-list__summary {
  font-family: var(--font-cn);
  font-size: 0.9375rem;
  line-height: 1.8;
  letter-spacing: 0.02em;
  padding: 0 0 1.5rem 7.5rem; /* align with title (5.5rem + 2rem gap) */
  color: var(--text-on-light);
  opacity: 0.9;
}

@media (max-width: 767px) {
  .news-list__row {
    grid-template-columns: 4rem 1fr auto;
    gap: 1rem;
    padding: 1rem 0;
  }

  .news-list__date { font-size: 0.6875rem; }

  .news-list__summary {
    padding-left: 0;
    padding-top: 0.5rem;
  }
}

.news-list__load-more {
  margin-top: 2rem;
  padding: 0.75rem 1.5rem;
  font-family: var(--font-display);
  font-size: 0.75rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  background: transparent;
  border: 1px solid var(--hairline);
  color: var(--text-on-light);
  cursor: pointer;
  transition: border-color var(--transition-fast) var(--ease-out), color var(--transition-fast) var(--ease-out);
}

.news-list__load-more:hover {
  border-color: var(--brand-gold);
  color: var(--brand-gold);
}

.news-list__load-more:focus-visible { outline: 2px solid var(--brand-gold); outline-offset: 2px; }

/* ----- CTA ----- */
.cta { text-decoration: none; }
.cta:hover { opacity: 0.9; }
.cta:focus-visible { outline: 2px solid var(--text-on-dark); outline-offset: 2px; }