/* ═══════════════════════════════════════════════════════════
   theme-dusklight · 单一样式入口
   设计令牌原样移植自 Dusklight（单一色相 oklch + 玻璃拟态）
   ═══════════════════════════════════════════════════════════ */

/* ── Maple Mono（等宽） ── */
@font-face { font-family: "Maple Mono"; src: url("../fonts/maple-mono/maple-mono-regular.woff2") format("woff2"); font-style: normal; font-weight: 400; font-display: swap; }
@font-face { font-family: "Maple Mono"; src: url("../fonts/maple-mono/maple-mono-italic.woff2") format("woff2"); font-style: italic; font-weight: 400; font-display: swap; }
@font-face { font-family: "Maple Mono"; src: url("../fonts/maple-mono/maple-mono-bold.woff2") format("woff2"); font-style: normal; font-weight: 700; font-display: swap; }
@font-face { font-family: "Maple Mono"; src: url("../fonts/maple-mono/maple-mono-bold-italic.woff2") format("woff2"); font-style: italic; font-weight: 700; font-display: swap; }

/* ── 设计令牌 ── */
:root {
  --hue: 170;
  --surface-0: oklch(0.96 0.012 var(--hue));
  --surface-1: oklch(0.98 0.008 var(--hue));
  --surface-2: oklch(0.945 0.015 var(--hue));
  --surface-3: oklch(0.92 0.018 var(--hue));
  --foreground: oklch(0.18 0.015 var(--hue));
  --foreground-secondary: oklch(0.42 0.020 var(--hue));
  --foreground-muted: oklch(0.52 0.015 var(--hue));
  --accent: oklch(0.55 0.16 var(--hue));
  --accent-dim: oklch(0.45 0.12 var(--hue));
  --accent-bright: oklch(0.65 0.18 var(--hue));
  --accent-subtle: oklch(0.55 0.16 var(--hue) / 0.10);
  --border: oklch(0.90 0.008 var(--hue));
  --border-subtle: oklch(0.93 0.005 var(--hue));
  --shadow-sm: 0 1px 2px oklch(0.18 0.015 var(--hue) / 0.05);
  --shadow-md: 0 4px 12px oklch(0.18 0.015 var(--hue) / 0.08);
  --shadow-lg: 0 8px 24px oklch(0.18 0.015 var(--hue) / 0.12);
  --glass-bg: oklch(0.98 0.006 var(--hue) / 0.55);
  --glass-border: oklch(0.90 0.010 var(--hue) / 0.35);
  --glass-highlight: inset 0 0.5px 0 oklch(1 0 0 / 0.5);
  --glass-blur: 24px;
  --glass-saturation: 140%;
  --code-bg: oklch(0.97 0.005 var(--hue) / 0.85);
  --radius: 14px;
  --radius-lg: 20px;
  --radius-full: 999px;
  --font-body: "MiSans Subset", "MiSans", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  --font-mono: "Maple Mono", "Cascadia Code", "SF Mono", Consolas, monospace;
  --header-height: 68px;
}

:root.dark {
  --surface-0: oklch(0.14 0.012 var(--hue));
  --surface-1: oklch(0.18 0.014 var(--hue));
  --surface-2: oklch(0.21 0.016 var(--hue));
  --surface-3: oklch(0.24 0.018 var(--hue));
  --foreground: oklch(0.93 0.008 var(--hue));
  --foreground-secondary: oklch(0.70 0.015 var(--hue));
  --foreground-muted: oklch(0.50 0.012 var(--hue));
  --accent: oklch(0.72 0.14 var(--hue));
  --accent-dim: oklch(0.60 0.10 var(--hue));
  --accent-bright: oklch(0.82 0.16 var(--hue));
  --accent-subtle: oklch(0.72 0.14 var(--hue) / 0.12);
  --border: oklch(0.25 0.015 var(--hue));
  --border-subtle: oklch(0.20 0.012 var(--hue));
  --shadow-sm: 0 1px 2px oklch(0 0 0 / 0.2);
  --shadow-md: 0 4px 12px oklch(0 0 0 / 0.3);
  --shadow-lg: 0 8px 24px oklch(0 0 0 / 0.4);
  --glass-bg: oklch(0.18 0.012 var(--hue) / 0.45);
  --glass-border: oklch(1 0 0 / 0.15);
  --code-bg: oklch(0.16 0.012 var(--hue) / 0.85);
}

/* ── 基础 ── */
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.75;
  color: var(--foreground);
  background:
    radial-gradient(1200px 600px at 85% -10%, var(--accent-subtle), transparent 60%),
    radial-gradient(900px 500px at -10% 30%, var(--accent-subtle), transparent 55%),
    var(--surface-0);
  background-attachment: fixed;
  transition: color 0.25s ease;
}
a { color: var(--accent); text-decoration: none; transition: color 0.2s ease; }
a:hover { color: var(--accent-bright); }
img { max-width: 100%; }
::selection { background: var(--accent); color: var(--surface-0); }

/* ── 玻璃材质 ── */
.glass {
  position: relative;
  background: var(--glass-bg);
  -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(140%);
  backdrop-filter: blur(var(--glass-blur)) saturate(140%);
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-highlight), var(--shadow-md);
  border-radius: var(--radius-lg);
}

/* ── 头部：双胶囊导航 ── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  height: var(--header-height);
  display: flex;
  align-items: center;
  padding: 0 20px;
}
.header-inner {
  width: min(1400px, 100%);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.pill {
  display: flex;
  align-items: center;
  gap: 4px;
  min-height: 46px;
  padding: 6px 14px;
  border-radius: var(--radius-full);
  background: var(--glass-bg);
  -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(140%);
  backdrop-filter: blur(var(--glass-blur)) saturate(140%);
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-highlight), var(--shadow-sm);
}
.logo-pill { font-weight: 600; font-size: 1.05rem; color: var(--foreground); }
.logo-pill:hover { color: var(--accent); }
.nav-pill ul { display: flex; align-items: center; gap: 2px; list-style: none; margin: 0; padding: 0; overflow-x: auto; max-width: 72vw; }
.nav-pill li { position: relative; }
.nav-pill li > a {
  display: block;
  padding: 8px 14px;
  border-radius: var(--radius-full);
  color: var(--foreground-secondary);
  font-size: 0.95rem;
  white-space: nowrap;
}
.nav-pill li > a:hover, .nav-pill li > a.active { color: var(--accent); background: var(--accent-subtle); }
.nav-pill .dropdown {
  display: none;
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  min-width: 160px;
  list-style: none;
  margin: 0;
  padding: 6px;
  background: var(--glass-bg);
  -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(140%);
  backdrop-filter: blur(var(--glass-blur)) saturate(140%);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
}
.nav-pill li:hover .dropdown { display: block; }
.nav-pill .dropdown a { padding: 8px 12px; border-radius: 10px; }
.icon-btn {
  border: 0;
  background: transparent;
  color: var(--foreground-secondary);
  font-size: 1.1rem;
  padding: 6px 10px;
  border-radius: var(--radius-full);
  cursor: pointer;
}
.icon-btn:hover { background: var(--accent-subtle); color: var(--accent); }

/* ── 主布局 ── */
.hero {
  width: min(1400px, 100%);
  margin: 8px auto 0;
  padding: 34px 34px 28px;
}
.hero h1 { margin: 0; font-size: clamp(1.6rem, 3.5vw, 2.4rem); }
.hero p { margin: 6px 0 0; color: var(--foreground-muted); }
.shell {
  width: min(1400px, 100%);
  margin: 20px auto 0;
  padding: 0 20px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  gap: 22px;
  align-items: start;
}
.shell.single { display: block; }
@media (max-width: 960px) {
  .shell { grid-template-columns: minmax(0, 1fr); }
  .sidebar { display: none; }
}

/* ── 文章卡片 ── */
.post-list { display: grid; gap: 18px; }
.post-card { overflow: hidden; transition: transform 0.25s ease, box-shadow 0.25s ease; }
.post-card:hover { transform: translateY(-3px); box-shadow: var(--glass-highlight), var(--shadow-lg); }
.post-card .cover { display: block; aspect-ratio: 16 / 8; overflow: hidden; }
.post-card .cover img { width: 100%; height: 100%; object-fit: cover; display: block; }
.card-body { padding: 18px 22px 20px; }
.card-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; font-size: 0.82rem; color: var(--foreground-muted); }
.card-meta time { margin-left: auto; }
.chip {
  padding: 2px 10px;
  border-radius: var(--radius-full);
  border: 1px solid var(--border);
  color: var(--foreground-secondary);
  font-size: 0.78rem;
}
.chip-accent { background: var(--accent-subtle); border-color: transparent; color: var(--accent); }
.chip-pin { background: var(--accent-subtle); border-color: transparent; color: var(--accent); font-weight: 600; }
.post-card h3 { margin: 10px 0 6px; font-size: 1.2rem; line-height: 1.4; }
.post-card h3 a { color: var(--foreground); }
.post-card h3 a:hover { color: var(--accent); }
.excerpt {
  margin: 0 0 12px;
  color: var(--foreground-secondary);
  font-size: 0.92rem;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.card-tags { display: flex; flex-wrap: wrap; gap: 6px; }
.tag { font-size: 0.78rem; color: var(--foreground-muted); }

/* ── 分页 ── */
.pagination { display: flex; justify-content: center; align-items: center; gap: 14px; margin: 26px 0 8px; }
.pagination a, .pagination span {
  padding: 8px 18px;
  border-radius: var(--radius-full);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  font-size: 0.9rem;
  color: var(--foreground-secondary);
}
.pagination a:hover { color: var(--accent); }

/* ── 侧栏 ── */
.sidebar { display: grid; gap: 16px; position: sticky; top: calc(var(--header-height) + 14px); }
.widget { padding: 20px; }
.widget h4 { margin: 0 0 12px; font-size: 0.95rem; color: var(--foreground-secondary); }
.profile { text-align: center; }
.profile .avatar { width: 88px; height: 88px; border-radius: 50%; border: 3px solid var(--surface-0); box-shadow: var(--shadow-md); }
.profile h3 { margin: 12px 0 4px; }
.profile .muted { margin: 0; color: var(--foreground-muted); font-size: 0.9rem; }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 6px; text-align: center; }
.stats-grid div b { display: block; font-size: 1.1rem; color: var(--accent); }
.stats-grid div span { font-size: 0.75rem; color: var(--foreground-muted); }
.side-list { list-style: none; margin: 0; padding: 0; }
.side-list li { padding: 7px 0; border-bottom: 1px dashed var(--border-subtle); font-size: 0.9rem; }
.side-list li:last-child { border-bottom: 0; }
.side-list a { color: var(--foreground-secondary); }
.side-list a:hover { color: var(--accent); }
.side-list time { float: right; font-size: 0.78rem; color: var(--foreground-muted); }

/* ── 文章页 ── */
.post-page { max-width: 860px; margin: 0 auto; padding: 26px 30px 30px; }
.post-header h1 { margin: 8px 0 12px; font-size: clamp(1.5rem, 3vw, 2.1rem); line-height: 1.35; }
.post-cover { width: 100%; border-radius: var(--radius); margin: 14px 0 0; }
.markdown-body { margin-top: 18px; font-size: 1rem; overflow-wrap: break-word; }
.markdown-body h1, .markdown-body h2, .markdown-body h3, .markdown-body h4 { line-height: 1.4; margin: 1.6em 0 0.7em; }
.markdown-body h2 { padding-bottom: 8px; border-bottom: 1px solid var(--border-subtle); }
.markdown-body a { text-decoration: underline; text-underline-offset: 3px; }
.markdown-body blockquote {
  margin: 1.2em 0;
  padding: 10px 18px;
  border-left: 3px solid var(--accent);
  background: var(--accent-subtle);
  border-radius: 0 10px 10px 0;
  color: var(--foreground-secondary);
}
.markdown-body code {
  font-family: var(--font-mono);
  font-size: 0.88em;
  background: var(--accent-subtle);
  color: var(--accent);
  padding: 2px 7px;
  border-radius: 6px;
}
.markdown-body pre {
  background: var(--code-bg);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  padding: 16px 18px;
  overflow-x: auto;
}
.markdown-body pre code { background: transparent; color: var(--foreground); padding: 0; font-size: 0.88rem; }
.markdown-body img { border-radius: var(--radius); box-shadow: var(--shadow-md); }
.markdown-body table { width: 100%; border-collapse: collapse; margin: 1.2em 0; font-size: 0.92rem; }
.markdown-body th, .markdown-body td { border: 1px solid var(--border); padding: 8px 12px; text-align: left; }
.markdown-body th { background: var(--accent-subtle); }
.markdown-body hr { border: 0; border-top: 1px dashed var(--border); margin: 2em 0; }

/* ── 评论 ── */
.comments-section { margin-top: 26px; }
#twikoo { min-height: 60px; }

/* ── 归档 / 列表页 ── */
.archive-year { font-size: 1.4rem; margin: 30px 0 10px; color: var(--accent); }
.archive-list { list-style: none; margin: 0; padding: 0; }
.archive-list li { padding: 9px 0; border-bottom: 1px dashed var(--border-subtle); display: flex; gap: 14px; align-items: baseline; }
.archive-list time { color: var(--foreground-muted); font-family: var(--font-mono); font-size: 0.85rem; flex-shrink: 0; }
.chip-row { display: flex; flex-wrap: wrap; gap: 10px; }
.chip-row .chip { font-size: 0.95rem; padding: 6px 16px; }

/* ── 页脚 ── */
.site-footer {
  margin-top: 44px;
  padding: 22px 20px 30px;
  text-align: center;
  color: var(--foreground-muted);
  font-size: 0.88rem;
  border-top: 1px solid var(--border-subtle);
}
.site-footer a { color: var(--foreground-secondary); }
.site-footer .footer-extra { margin-top: 4px; }

/* ── 空状态 ── */
.empty-tip { text-align: center; padding: 40px 0; color: var(--foreground-muted); }