/* ============================================================
   CSXYLIC Wiki Hub — 星图导航页
   深色主题,与旗下各 Wiki 站点保持一致
   ============================================================ */

:root {
  --bg: #0a0d14;
  --surface: #111625;
  --surface-2: #161d30;
  --ink: #e8ebf2;
  --ink-dim: #98a1b6;
  --ink-faint: #5d6679;
  --line: rgba(232, 235, 242, 0.1);
  --gold: #e8c36a;
  --online: #4ade80;
  --offline: #f87171;

  --font-serif: "Noto Serif SC", "Source Han Serif SC", "Source Han Serif CN",
    "Songti SC", "SimSun", serif;
  --font-sans: "Noto Sans SC", "Source Han Sans SC", "PingFang SC",
    "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, "JetBrains Mono", "SFMono-Regular", Consolas,
    "Liberation Mono", monospace;
}

* { box-sizing: border-box; }

html { color-scheme: dark; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}

/* ---------- 星空背景 ---------- */

#starfield {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(1100px 620px at 78% -12%, rgba(24, 39, 74, 0.85) 0%, transparent 62%),
    radial-gradient(900px 520px at 8% 112%, rgba(17, 26, 48, 0.9) 0%, transparent 58%),
    var(--bg);
}

::selection { background: rgba(99, 179, 255, 0.3); }

a { color: inherit; }

.wrap {
  max-width: 1060px;
  margin: 0 auto;
  padding-inline: 22px;
}

/* ---------- 顶栏 ---------- */

.site-header { padding: 20px 0 8px; }

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.brand-star {
  width: 20px;
  height: 20px;
  fill: var(--gold);
  filter: drop-shadow(0 0 6px rgba(232, 195, 106, 0.45));
}

.brand-name {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.18em;
}

.brand-sub {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.3em;
  color: var(--ink-dim);
  padding-left: 10px;
  border-left: 1px solid var(--line);
}

.lang-switch {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.pill {
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--ink-dim);
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 5px 12px;
  cursor: pointer;
  transition: color 0.16s ease, border-color 0.16s ease, background 0.16s ease;
}

.pill:hover { color: var(--ink); border-color: rgba(232, 235, 242, 0.35); }

.pill[aria-pressed="true"] {
  color: var(--bg);
  background: var(--ink);
  border-color: var(--ink);
  font-weight: 600;
}

.pill:focus-visible {
  outline: 2px solid #63b3ff;
  outline-offset: 2px;
}

/* ---------- 英雄区 ---------- */

.hero {
  display: grid;
  grid-template-columns: 1.25fr 0.75fr;
  align-items: center;
  gap: 48px;
  padding: 64px 0 56px;
}

.eyebrow {
  margin: 0 0 18px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.42em;
  text-transform: uppercase;
  color: var(--ink-dim);
}

.hero h1 {
  margin: 0;
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: clamp(2.1rem, 5.2vw, 3.4rem);
  line-height: 1.28;
  letter-spacing: 0.02em;
  text-wrap: balance;
}

.hero-sub {
  margin: 18px 0 0;
  font-size: 1.02rem;
  color: var(--ink-dim);
  max-width: 34em;
}

.hero-count {
  display: flex;
  align-items: center;
  gap: 9px;
  margin: 26px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--ink-faint);
}

.dot-gold {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--gold);
  box-shadow: 0 0 10px rgba(232, 195, 106, 0.7);
}

/* 星座图 */

.hero-chart { justify-self: center; }

.hero-chart svg { width: 100%; max-width: 300px; display: block; }

.chart-lines {
  stroke: rgba(232, 235, 242, 0.16);
  stroke-width: 1;
  stroke-dasharray: 3 7;
  stroke-linecap: round;
}

.chart-node { filter: drop-shadow(0 0 5px currentColor); }

.chart-future { opacity: 0.5; }

.chart-label {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  fill: var(--ink-dim);
}

.chart-future + .chart-label text:last-child { fill: var(--gold); }

/* 星星呼吸 */

@keyframes twinkle {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.65; }
}

.chart-node:nth-of-type(1) { animation: twinkle 3.2s ease-in-out infinite; }
.chart-node:nth-of-type(2) { animation: twinkle 3.2s ease-in-out infinite 0.8s; }
.chart-future { animation: twinkle 4.2s ease-in-out infinite 1.6s; }

/* ---------- 站点卡片 ---------- */

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 18px;
  padding-bottom: 64px;
}

.card {
  --accent: #63b3ff;
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 22px 22px 18px;
  background: linear-gradient(180deg, var(--surface-2), var(--surface) 70%);
  border: 1px solid var(--line);
  border-radius: 16px;
  text-decoration: none;
  overflow: hidden;
  transition: transform 0.18s ease, border-color 0.18s ease,
    box-shadow 0.18s ease;
}

.card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  opacity: 0.35;
  transition: opacity 0.18s ease;
}

.card:hover, .card:focus-visible {
  transform: translateY(-3px);
  border-color: color-mix(in srgb, var(--accent) 45%, transparent);
  box-shadow: 0 16px 44px -20px color-mix(in srgb, var(--accent) 55%, transparent);
  outline: none;
}

.card:hover::before, .card:focus-visible::before { opacity: 1; }

.card-head {
  display: flex;
  align-items: center;
  gap: 14px;
}

.card-logo {
  width: 54px;
  height: 54px;
  flex: none;
  object-fit: cover;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: #0d1220;
}

.card-title {
  min-width: 0;
  flex: 1;
}

.card-title h2 {
  margin: 0;
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: 1.18rem;
  line-height: 1.35;
  letter-spacing: 0.01em;
}

.card-tagline {
  margin: 2px 0 0;
  font-size: 0.85rem;
  color: var(--ink-dim);
}

.card-id {
  flex: none;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.12em;
  color: var(--accent);
  border: 1px solid color-mix(in srgb, var(--accent) 40%, transparent);
  border-radius: 6px;
  padding: 2px 8px;
}

.card-langs {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  color: var(--ink-faint);
}

.card-desc {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.65;
  color: var(--ink-dim);
}

.card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tag {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.04em;
  color: var(--ink-dim);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 2px 10px;
}

.card-foot {
  margin-top: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--line);
}

.card-url {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--ink-dim);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.status-dot {
  flex: none;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--ink-faint);
}

.status-dot.is-online {
  background: var(--online);
  box-shadow: 0 0 8px rgba(74, 222, 128, 0.55);
}

.status-dot.is-offline { background: var(--offline); }

.card-cta {
  flex: none;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

.card-cta .arr { transition: transform 0.18s ease; }

.card:hover .card-cta .arr, .card:focus-visible .card-cta .arr {
  transform: translateX(3px);
}

/* ---------- 页脚 ---------- */

.site-footer { border-top: 1px solid var(--line); }

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  padding-block: 24px 34px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: var(--ink-faint);
}

.footer-note { color: var(--gold); }

/* ---------- 无 JS 回退 ---------- */

.noscript-list { padding: 0 0 60px; }
.noscript-list li { margin: 6px 0; }
.noscript-list a { color: #63b3ff; }

/* ---------- 响应式 ---------- */

@media (max-width: 760px) {
  .hero {
    grid-template-columns: 1fr;
    gap: 34px;
    padding: 44px 0 40px;
  }
  .hero-chart { order: -1; }
  .hero-chart svg { max-width: 220px; }
  .grid { grid-template-columns: 1fr; }
  .header-inner { flex-direction: column; align-items: flex-start; }
}

/* ---------- 无障碍:减少动效 ---------- */

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    transition: none !important;
    animation: none !important;
  }
}