/* 全站共用：设计变量、顶栏、页脚（首页与其他页面都加载）。原型 D · 墨绿 */
:root {
  --font: -apple-system, BlinkMacSystemFont, "SF Pro Text", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  --page: #fafaf8; --surface: #ffffff; --ink: #0f1a15; --dim: #5d6b64; --muted: #646f6a; /* 小字对比度 ≥ 4.5:1 */
  --line: rgba(15, 26, 21, .08); --line-strong: #d5ddd8;
  --brand: #0f9d6b; --brand-hover: #0a6e4c; --brand-strong: #0b8059; /* 白字底色、绿色小字用，对比度 ≥ 4.5:1 */ --brand-deep: #0a5c40; --brand-soft: #ecf8f2; --brand-border: rgba(15, 157, 107, .28);
  --warm: #a85f2a; --warm-soft: #fbf1e7;
  --shadow-card: 0 4px 20px -2px rgba(15, 26, 21, .05), 0 2px 6px -1px rgba(15, 26, 21, .03);
  --shadow-hero: 0 24px 48px -12px rgba(15, 40, 28, .14), 0 8px 16px -6px rgba(15, 40, 28, .06);
  --r-md: 12px; --r-lg: 18px; --r-xl: 24px;
}
html { scrollbar-gutter: stable; -webkit-text-size-adjust: 100%; }
.wrap { max-width: 1120px; margin: 0 auto; padding: 0 24px; }
:focus-visible { outline: 3px solid #f0a85f; outline-offset: 2px; }

/* 顶栏 */
.site-topbar a, .site-footer a { color: inherit; text-decoration: none; }
.site-topbar { position: sticky; top: 0; z-index: 20; background: rgba(255, 255, 255, .9); backdrop-filter: saturate(1.4) blur(12px); -webkit-backdrop-filter: saturate(1.4) blur(12px); border-bottom: 1px solid var(--line); }
.site-topbar .wrap { display: flex; align-items: center; height: 68px; gap: 24px; }
.brand { display: flex; align-items: center; gap: 10px; flex: none; }
.brand img { width: 38px; height: 38px; border-radius: 10px; box-shadow: var(--shadow-card); }
.brand b { display: block; font-size: 17px; line-height: 1.2; }
.brand small { display: block; font-size: 12px; color: var(--muted); }
.top-links { display: flex; align-items: center; gap: 6px; margin: 0 auto; }
.top-links > a, .top-links summary { position: relative; display: block; padding: 10px 12px; font-size: 14px; font-weight: 600; color: var(--dim); cursor: pointer; list-style: none; white-space: nowrap; }
.top-links summary::-webkit-details-marker { display: none; }
.top-links > a:hover, .top-links summary:hover, .top-links details[open] summary { color: var(--ink); }
.top-links > a[aria-current="page"] { color: var(--ink); }
.top-links > a[aria-current="page"]::after { content: ""; position: absolute; left: 12px; right: 12px; bottom: 2px; height: 2px; border-radius: 2px; background: var(--ink); }
.top-links details { position: relative; }
.top-links .menu { position: absolute; top: 46px; left: -8px; width: 220px; background: var(--surface); border: 1px solid var(--line); border-radius: var(--r-md); box-shadow: var(--shadow-hero); padding: 6px; }
.top-links .menu a { display: block; padding: 10px 12px; border-radius: 8px; font-size: 14px; color: var(--ink); }
.top-links .menu a:hover { background: var(--brand-soft); }
.status-badge { display: inline-flex; align-items: center; gap: 6px; height: 34px; padding: 0 14px; border: 1px solid var(--line); border-radius: 999px; font-size: 13px; color: var(--dim); background: var(--surface); white-space: nowrap; flex: none; }
.status-badge:hover { border-color: var(--brand-border); color: var(--brand-deep); }
.status-badge i { width: 7px; height: 7px; border-radius: 50%; background: var(--brand); box-shadow: 0 0 0 3px var(--brand-soft); }

/* 页脚 */
.site-footer { margin-top: 80px; border-top: 1px solid var(--line); background: var(--surface); padding: 32px 0 40px; font-size: 13px; color: var(--muted); }
.site-footer .row { display: flex; align-items: center; gap: 12px 24px; flex-wrap: wrap; margin-bottom: 14px; }
.footer-brand { display: flex; align-items: center; gap: 8px; color: var(--ink); }
.footer-brand img { width: 28px; height: 28px; border-radius: 8px; }
.footer-brand strong { font-size: 14px; }
.site-footer nav { display: flex; gap: 0 20px; flex-wrap: wrap; }
.site-footer nav a { color: var(--dim); padding: 10px 0; }
.site-footer nav a:hover { color: var(--ink); }
.site-footer p { margin: 0; }

@media (max-width: 900px) {
  .wrap { padding: 0 16px; }
  .site-topbar .wrap { height: auto; flex-wrap: wrap; padding-top: 10px; gap: 4px 12px; }
  .status-badge { margin-left: auto; height: 30px; padding: 0 10px; font-size: 12px; }
  .top-links { order: 3; width: calc(100% + 32px); margin: 0 -16px; padding: 0 6px; overflow-x: auto; scrollbar-width: none; }
  .top-links::-webkit-scrollbar { display: none; }
  .top-links > a, .top-links summary { padding: 10px 10px 12px; }
  .top-links details { position: static; }
  .top-links .menu { position: fixed; left: 16px; right: 16px; top: 104px; width: auto; }
  .site-footer { margin-top: 56px; }
}