:root {
  --bg: #0f1618;
  --panel: #172022;
  --text: #eef3f2;
  --muted: #a7b4b1;
  --accent: #5ec4b2;
  --line: rgba(94, 196, 178, 0.28);
  --wrap: 68rem;
}
* { box-sizing: border-box; }
body { margin: 0; font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif; background: linear-gradient(180deg, #121a1c, #0b1012); color: var(--text); line-height: 1.75; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; object-fit: cover; }
.wrap { width: min(100% - 2rem, var(--wrap)); margin: 0 auto; }
.site-header { position: sticky; top: 0; background: rgba(11,16,18,.92); border-bottom: 1px solid var(--line); backdrop-filter: blur(10px); z-index: 10; }
.header-inner { display: flex; align-items: center; gap: 1rem; min-height: 4rem; }
.brand { display: flex; align-items: center; gap: .6rem; color: #fff; }
.brand img { border-radius: 8px; }
.nav { margin-left: auto; display: flex; gap: 1rem; }
.nav a { color: var(--muted); }
.nav a:hover, .nav a[aria-current="page"] { color: var(--accent); }
.main { padding: 1.5rem 0 3rem; }
.hero { display: grid; gap: 1rem; margin-bottom: 2rem; }
.hero-banner { width: 100%; border-radius: 1rem; border: 1px solid var(--line); max-height: 360px; }
.hero-text h1, .page-head h1 { margin: 0 0 .7rem; font-size: clamp(1.7rem, 3vw, 2.4rem); line-height: 1.3; }
.lede { color: var(--muted); margin: 0; font-size: 1.05rem; }
.section { margin: 2.2rem 0; }
.section h2 { margin: 0 0 1rem; }
.grid { display: grid; gap: 1rem; }
.grid.cats, .grid.articles { grid-template-columns: repeat(3, 1fr); }
.card { background: var(--panel); border: 1px solid var(--line); border-radius: .9rem; overflow: hidden; }
.card:hover { border-color: var(--accent); }
.card img { width: 100%; aspect-ratio: 16/9; }
.card-body { padding: .95rem 1rem 1.1rem; }
.card-body h3, .card-body .h3 { margin: 0 0 .4rem; font-size: 1.08rem; }
.card-body p { margin: 0; color: var(--muted); font-size: .95rem; }
.meta { color: #80908d !important; font-size: .82rem !important; margin-top: .55rem !important; }
.page-head { margin-bottom: 1.4rem; padding-bottom: 1rem; border-bottom: 1px solid var(--line); }
.crumb { color: #80908d; font-size: .88rem; margin-bottom: .55rem; }
.crumb a:hover { color: var(--accent); }
.prose { max-width: 46rem; color: var(--muted); }
.prose h2 { color: var(--text); margin: 1.5rem 0 .7rem; font-size: 1.3rem; }
.prose h3 { color: var(--text); margin: 1.2rem 0 .55rem; font-size: 1.1rem; }
.prose p { margin: 0 0 1rem; }
.prose ul, .prose ol { margin: 0 0 1rem 1.2rem; }
.cover { margin: 0 0 1.3rem; border-radius: 1rem; overflow: hidden; border: 1px solid var(--line); }
.cover img { width: 100%; aspect-ratio: 16/9; }
.site-footer { border-top: 1px solid var(--line); padding: 2rem 0; color: var(--muted); }
.footer-inner p { margin: .35rem 0; }
.muted a { color: var(--accent); }
@media (max-width: 900px) {
  .grid.cats, .grid.articles { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 600px) {
  .grid.cats, .grid.articles { grid-template-columns: 1fr; }
  .nav { width: 100%; }
  .header-inner { flex-wrap: wrap; }
}