/* 俄乌战争追踪 — Dark editorial news brief
   System fonts only (China-reachable). No Google Fonts / external CDNs. */
:root {
  --bg: #0b0f14;
  --bg-elev: #121820;
  --bg-soft: #18212c;
  --line: #243041;
  --line-strong: #334155;
  --text: #e8edf4;
  --text-dim: #9aa8b8;
  --text-faint: #6b7a8c;
  --accent: #d4a017; /* editorial gold */
  --accent-2: #3b82c4; /* ukraine-leaning blue, sparingly */
  --danger: #c45c5c;
  --ok: #3d9a78;
  --radius: 10px;
  --shadow: 0 1px 0 rgba(255,255,255,0.04), 0 12px 40px rgba(0,0,0,0.35);
  --font: system-ui, -apple-system, "Segoe UI", "PingFang SC", "Hiragino Sans GB",
          "Noto Sans CJK SC", "Noto Sans SC", "Microsoft YaHei", "WenQuanYi Micro Hei",
          "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
  --max: 920px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; animation: none !important; }
}

body {
  margin: 0;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.65;
  color: var(--text);
  background:
    radial-gradient(1200px 600px at 10% -10%, rgba(212,160,23,0.08), transparent 60%),
    radial-gradient(900px 500px at 100% 0%, rgba(59,130,196,0.07), transparent 55%),
    var(--bg);
  min-height: 100vh;
}

img { max-width: 100%; height: auto; display: block; }
a { color: #8ec5ff; text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: #cfe6ff; }
a:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

.skip-link {
  position: absolute; left: -999px; top: 0;
  background: var(--accent); color: #111; padding: 0.5rem 1rem; z-index: 100;
}
.skip-link:focus { left: 0.5rem; top: 0.5rem; }

.wrap { width: min(var(--max), calc(100% - 2rem)); margin-inline: auto; }

.site-header {
  position: sticky; top: 0; z-index: 40;
  backdrop-filter: blur(12px);
  background: rgba(11, 15, 20, 0.82);
  border-bottom: 1px solid var(--line);
}
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem; padding: 0.85rem 0; flex-wrap: wrap;
}
.brand { display: flex; align-items: center; gap: 0.75rem; color: inherit; text-decoration: none; }
.brand-mark {
  width: 12px; height: 28px; border-radius: 2px;
  background: linear-gradient(180deg, var(--accent), #8a6410);
  box-shadow: 0 0 0 1px rgba(212,160,23,0.35);
}
.brand-text { display: flex; flex-direction: column; gap: 0.1rem; }
.brand-text strong { font-size: 1rem; letter-spacing: 0.02em; }
.brand-text span { font-size: 0.75rem; color: var(--text-dim); }

.nav { display: flex; gap: 0.35rem; flex-wrap: wrap; }
.nav a {
  color: var(--text-dim); text-decoration: none;
  padding: 0.45rem 0.75rem; border-radius: 999px; font-size: 0.9rem;
  min-height: 44px; display: inline-flex; align-items: center;
}
.nav a:hover { background: var(--bg-soft); color: var(--text); }
.nav a[aria-current="page"] {
  background: var(--bg-soft); color: var(--text);
  box-shadow: inset 0 0 0 1px var(--line-strong);
}

.issue-hero, .page-head { padding: 2.2rem 0 1.2rem; }
.eyebrow {
  display: flex; align-items: center; gap: 0.6rem; flex-wrap: wrap;
  color: var(--text-dim); font-size: 0.85rem; margin: 0 0 0.6rem;
  font-variant-numeric: tabular-nums;
}
h1 {
  font-size: clamp(1.6rem, 3.5vw, 2.15rem);
  line-height: 1.25; margin: 0 0 0.85rem; font-weight: 700;
  letter-spacing: -0.01em;
}
.lede {
  margin: 0; color: var(--text-dim); font-size: 1.05rem; max-width: 62ch;
}

.pill {
  display: inline-flex; align-items: center;
  padding: 0.15rem 0.55rem; border-radius: 999px;
  background: rgba(212,160,23,0.15); color: var(--accent);
  border: 1px solid rgba(212,160,23,0.35);
  font-size: 0.72rem; font-weight: 600; letter-spacing: 0.04em;
}

.key-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.75rem; margin: 1.25rem 0 1.75rem;
}
.key-grid.compact { grid-template-columns: repeat(4, minmax(0, 1fr)); margin: 0.75rem 0; }
.key-card {
  background: var(--bg-elev); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 0.9rem 1rem; box-shadow: var(--shadow);
}
.key-value {
  font-size: 1.25rem; font-weight: 700; letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums; color: var(--text);
}
.key-label { margin-top: 0.25rem; font-size: 0.82rem; color: var(--text-dim); }
.key-note { margin-top: 0.35rem; font-size: 0.75rem; color: var(--text-faint); }

.panel {
  background: var(--bg-elev); border: 1px solid var(--line);
  border-radius: calc(var(--radius) + 2px); padding: 1.25rem 1.35rem;
  margin: 0 0 1.15rem; box-shadow: var(--shadow);
}
.panel h2 {
  margin: 0 0 0.9rem; font-size: 1.15rem;
  padding-bottom: 0.65rem; border-bottom: 1px solid var(--line);
}
.changes ol { margin: 0; padding-left: 1.2rem; }
.changes li { margin: 0.45rem 0; }

.toc {
  display: flex; flex-wrap: wrap; gap: 0.4rem; margin: 0 0 1.25rem;
}
.toc a {
  text-decoration: none; color: var(--text-dim);
  background: var(--bg-soft); border: 1px solid var(--line);
  border-radius: 999px; padding: 0.4rem 0.75rem; font-size: 0.82rem;
  min-height: 40px; display: inline-flex; align-items: center;
}
.toc a:hover { color: var(--text); border-color: var(--line-strong); }

.map-figure {
  margin: 0 0 1.1rem; background: #0a0d12;
  border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden;
}
.map-figure img { width: 100%; background: #dcebf5; }
.map-figure figcaption {
  padding: 0.7rem 0.9rem; font-size: 0.82rem; color: var(--text-dim);
  border-top: 1px solid var(--line);
}

.prose :is(p, ul, ol) { margin: 0 0 0.85rem; }
.prose :is(ul, ol) { padding-left: 1.25rem; }
.prose li { margin: 0.35rem 0; }
.prose strong { color: #f3f6fb; font-weight: 650; }
.prose a { word-break: break-word; }

.issue-pager {
  display: grid; grid-template-columns: 1fr auto 1fr;
  gap: 0.75rem; align-items: center;
  margin: 1.5rem 0 2.5rem; padding-top: 1rem; border-top: 1px solid var(--line);
  font-size: 0.9rem;
}
.issue-pager .right { text-align: right; }

.archive-list { list-style: none; padding: 0; margin: 0 0 3rem; }
.archive-list li {
  padding: 1.1rem 0; border-bottom: 1px solid var(--line);
}
.archive-list a {
  display: flex; flex-wrap: wrap; gap: 0.55rem; align-items: baseline;
  text-decoration: none; color: inherit;
}
.arch-date {
  font-family: var(--mono); font-size: 0.85rem; color: var(--accent);
  font-variant-numeric: tabular-nums;
}
.arch-title { font-weight: 600; }
.arch-judgment { margin: 0.45rem 0 0; color: var(--text-dim); font-size: 0.92rem; }

.timeline { display: flex; flex-direction: column; gap: 1rem; margin-bottom: 3rem; }
.timeline-item {
  background: var(--bg-elev); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 1.1rem 1.2rem;
}
.timeline-item header {
  display: flex; align-items: center; gap: 0.6rem; margin-bottom: 0.6rem;
}
.timeline-item time {
  font-family: var(--mono); color: var(--accent); font-size: 0.95rem;
}
.timeline-changes { margin: 0.5rem 0 0; padding-left: 1.15rem; color: var(--text-dim); }
.judgment-line { margin: 0.75rem 0 0; font-size: 0.92rem; color: var(--text); }

.site-footer {
  border-top: 1px solid var(--line); margin-top: 1rem;
  background: rgba(0,0,0,0.2);
}
.footer-inner { padding: 1.4rem 0 2rem; font-size: 0.85rem; color: var(--text-dim); }
.footer-inner p { margin: 0 0 0.45rem; }
.muted { color: var(--text-faint) !important; }

@media (max-width: 860px) {
  .key-grid, .key-grid.compact { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 560px) {
  .key-grid, .key-grid.compact { grid-template-columns: 1fr 1fr; }
  .issue-pager { grid-template-columns: 1fr; }
  .issue-pager .right { text-align: left; }
  .panel { padding: 1rem; }
  body { font-size: 15.5px; }
}