/* Base — reset, typography, layout (Ma) */

*, *::before, *::after { box-sizing: border-box; }

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

body {
  margin: 0;
  font-family: var(--font-body);
  background: var(--bg-light);
  color: var(--text-on-light);
  line-height: 1.6;
}

/* 中文页优先 Noto Serif SC，日文页 Noto Serif JP（与设计一致，避免移动端 fallback 不一致） */
/* html[data-lang] 由 head 内联脚本尽早设置，首屏即正确字体 */
html[data-lang="cn"] body,
body[data-lang="cn"] {
  font-family: var(--font-cn);
}
html[data-lang="jp"] body,
body[data-lang="jp"] {
  font-family: var(--font-jp);
}

/* 中文页：以下区块标题与链接统一使用 Noto Serif SC */
html[data-lang="cn"] .about-title,
body[data-lang="cn"] .about-title,
html[data-lang="cn"] .about-location,
body[data-lang="cn"] .about-location,
html[data-lang="cn"] .about-module__heading,
body[data-lang="cn"] .about-module__heading,
html[data-lang="cn"] .ipo-title,
body[data-lang="cn"] .ipo-title,
html[data-lang="cn"] .site-footer .connect,
html[data-lang="cn"] .connect,
body[data-lang="cn"] .site-footer .connect,
body[data-lang="cn"] .connect {
  font-family: var(--font-cn);
}
/* 新闻页标题「新闻动态」 */
html[data-lang="cn"] .news-page-title,
body[data-lang="cn"] .news-page-title {
  font-family: var(--font-cn) !important;
}

img { max-width: 100%; height: auto; display: block; }

a { color: inherit; text-decoration: none; }

/* Layout: left padding ≥ 8vw (Ma) */
.page-main { padding-left: 8vw; padding-right: 8vw; }

/* Structural lines only; no radius, no shadow */
hr, .hairline { border: 0; border-bottom: 1px solid var(--hairline); }
.hairline--dark { border-bottom-color: var(--hairline-light); }

/* Focus for accessibility */
:focus-visible { outline: 2px solid var(--brand-gold); outline-offset: 2px; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}