/* aizifu.org · 站点补充样式（base.css 之后加载） */

html[lang="ja"] body,
html[lang="ja"] button { font-family: "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic", var(--font-sans); }
html[lang="ko"] body,
html[lang="ko"] button { font-family: "Apple SD Gothic Neo", "Malgun Gothic", var(--font-sans); }
html[lang="fr"] body,
html[lang="fr"] button { font-family: "SF Pro Text", "Helvetica Neue", var(--font-sans); }

section.band { background: linear-gradient(180deg, transparent, rgba(139, 127, 212, .04), transparent); }
section.band-gold { background: linear-gradient(180deg, transparent, rgba(201, 169, 97, .03), transparent); }

/* 语言切换器 */
.lang { position: relative; }
.lang-btn {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 7px 12px; border-radius: var(--radius-sm);
  background: rgba(242, 238, 230, .03);
  border: 0.5px solid var(--line);
  color: var(--text-200); font-size: 13px; cursor: pointer;
  transition: border-color .2s, color .2s, background .2s;
}
.lang-btn:hover { border-color: rgba(201, 169, 97, .4); color: var(--gold-300); background: rgba(201, 169, 97, .06); }
.lang-btn svg { width: 15px; height: 15px; opacity: .75; }
.lang-menu {
  position: absolute; right: 0; top: calc(100% + 8px); min-width: 168px;
  padding: 6px; border-radius: var(--radius);
  background: var(--ink-800); border: 0.5px solid var(--line);
  box-shadow: 0 18px 40px rgba(0, 0, 0, .55);
  opacity: 0; visibility: hidden; transform: translateY(-6px);
  transition: opacity .18s, transform .18s, visibility .18s;
  z-index: 60;
}
.lang-menu.open { opacity: 1; visibility: visible; transform: translateY(0); }
.lang-menu .lang-item {
  display: flex; align-items: center; justify-content: space-between;
  padding: 8px 10px; border-radius: 6px;
  font-size: 13px; color: var(--text-200); text-decoration: none;
  transition: background .15s, color .15s;
}
.lang-menu .lang-item:hover { background: rgba(201, 169, 97, .08); color: var(--gold-300); }
.lang-menu .lang-item[aria-current="true"] { color: var(--gold-300); background: rgba(201, 169, 97, .1); }
.lang-menu .lang-item[aria-current="true"]::after { content: ""; width: 5px; height: 5px; border-radius: 50%; background: var(--gold-500); }
.foot-lang { display: flex; flex-direction: column; gap: 8px; }
.foot-lang .lang-item { font-size: 13px; color: var(--text-400); text-decoration: none; transition: color .2s; }
.foot-lang .lang-item:hover { color: var(--gold-400); }
.foot-lang .lang-item[aria-current="true"] { color: var(--gold-500); }

/* 首屏收一点，别让 hero 太高 */
.hero { padding-top: 78px; padding-bottom: 64px; }
.hero h1 { line-height: 1.24; }
.hero h1 em { display: block; font-style: normal; color: var(--gold-400); }

/* 卡片微交互 */
.card { transition: border-color .25s, transform .25s, background .25s; }
.card:hover { border-color: rgba(201, 169, 97, .34); transform: translateY(-2px); }
.art-card { transition: border-color .25s, transform .25s; }
.art-card:hover { border-color: rgba(201, 169, 97, .4); transform: translateY(-3px); }

/* 表格：窄屏可横滑，别把版面撑破 */
.tbl { display: block; overflow-x: auto; -webkit-overflow-scrolling: touch; }
@media (min-width: 861px) { .tbl { display: table; } }

/* FAQ 展开指示 */
.faq-item summary { cursor: pointer; list-style: none; position: relative; padding-right: 26px; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+"; position: absolute; right: 4px; top: 50%; transform: translateY(-50%);
  color: var(--gold-500); font-size: 16px; line-height: 1; transition: transform .2s;
}
.faq-item[open] summary::after { content: "−"; }

.nav { backdrop-filter: blur(0); }
@media (max-width: 860px) {
  .nav-links { display: none; }
  .hero { padding-top: 52px; }
  .hero-grid { gap: 32px; }
  .chart-wrap { display: none; }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .foot-grid { grid-template-columns: 1fr 1fr; gap: 28px; }
  .foot-legal { flex-direction: column; gap: 8px; }
}
@media (max-width: 520px) {
  .brand-sub { display: none; }
  .lang-btn { padding: 6px 9px; font-size: 12px; }
  .stats { grid-template-columns: 1fr 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  .chart-spin { animation: none !important; }
  * { transition-duration: .01ms !important; }
}