/* ==========================================================================
   mdblog — 主样式
   设计取向：阅读优先、代码友好、明暗双主题
   ========================================================================== */

:root {
  --bg: #f7f8fa;
  --bg-elevated: #ffffff;
  --bg-soft: #f1f3f7;
  --text: #1c2230;
  --text-soft: #5a6478;
  --text-faint: #8d97a8;
  --border: #e4e8ef;
  --border-strong: #d3d9e4;
  --accent: #2f6fed;
  --accent-soft: #eaf1ff;
  --accent-text: #1b4fc4;
  --code-bg: #f6f8fa;
  --code-border: #e1e6ee;
  --shadow-sm: 0 1px 2px rgba(16, 24, 40, .05);
  --shadow-md: 0 4px 16px rgba(16, 24, 40, .07);
  --radius: 12px;
  --radius-sm: 8px;
  --font-sans: system-ui, -apple-system, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-mono: "JetBrains Mono", "Fira Code", "SF Mono", ui-monospace, Menlo, Consolas, "Liberation Mono", monospace;
  --wrap: 1180px;
  --grid-gap: 32px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1319;
    --bg-elevated: #161b23;
    --bg-soft: #1c2230;
    --text: #e6ebf2;
    --text-soft: #a4b0c2;
    --text-faint: #74808f;
    --border: #242c38;
    --border-strong: #303a48;
    --accent: #6b9bff;
    --accent-soft: #1b2740;
    --accent-text: #8fb4ff;
    --code-bg: #12171e;
    --code-border: #232c38;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, .4);
    --shadow-md: 0 6px 20px rgba(0, 0, 0, .45);
  }
}

html[data-theme="light"] {
  --bg: #f7f8fa; --bg-elevated: #ffffff; --bg-soft: #f1f3f7;
  --text: #1c2230; --text-soft: #5a6478; --text-faint: #8d97a8;
  --border: #e4e8ef; --border-strong: #d3d9e4;
  --accent: #2f6fed; --accent-soft: #eaf1ff; --accent-text: #1b4fc4;
  --code-bg: #f6f8fa; --code-border: #e1e6ee;
  --shadow-sm: 0 1px 2px rgba(16,24,40,.05); --shadow-md: 0 4px 16px rgba(16,24,40,.07);
}
html[data-theme="dark"] {
  --bg: #0f1319; --bg-elevated: #161b23; --bg-soft: #1c2230;
  --text: #e6ebf2; --text-soft: #a4b0c2; --text-faint: #74808f;
  --border: #242c38; --border-strong: #303a48;
  --accent: #6b9bff; --accent-soft: #1b2740; --accent-text: #8fb4ff;
  --code-bg: #12171e; --code-border: #232c38;
  --shadow-sm: 0 1px 2px rgba(0,0,0,.4); --shadow-md: 0 6px 20px rgba(0,0,0,.45);
}

*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img { max-width: 100%; height: auto; }
a { color: var(--accent-text); text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 3px; }

.skip-link {
  position: absolute; left: -9999px; top: 0;
  background: var(--accent); color: #fff; padding: 10px 16px; z-index: 999;
}
.skip-link:focus { left: 12px; top: 12px; }

.wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 24px; }

/* ---------------- Header ---------------- */

.site-header {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--bg-elevated) 88%, transparent);
  backdrop-filter: saturate(180%) blur(12px);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  gap: 24px; height: 68px;
}

.brand { display: flex; align-items: center; gap: 12px; color: var(--text); }
.brand:hover { text-decoration: none; }
.brand-mark {
  display: grid; place-items: center;
  width: 38px; height: 38px; flex: 0 0 38px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--accent), color-mix(in srgb, var(--accent) 55%, #a855f7));
  color: #fff; font-family: var(--font-mono); font-size: 13px; font-weight: 700;
  letter-spacing: -.5px;
}
.brand-text { display: flex; flex-direction: column; line-height: 1.25; }
.brand-text strong { font-size: 16px; letter-spacing: -.2px; }
.brand-text small { color: var(--text-faint); font-size: 12px; }

.main-nav { display: flex; align-items: center; gap: 4px; }
.main-nav > a, .nav-drop-toggle, .search-toggle, .theme-toggle {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 8px 12px; border-radius: var(--radius-sm);
  font-size: 14px; color: var(--text-soft); background: none;
  border: 0; cursor: pointer; font-family: inherit; line-height: 1.4;
}
.main-nav > a:hover, .nav-drop-toggle:hover, .search-toggle:hover, .theme-toggle:hover {
  background: var(--bg-soft); color: var(--text); text-decoration: none;
}
.nav-drop { position: relative; }
.nav-drop-toggle::after {
  content: ""; width: 0; height: 0;
  border-left: 4px solid transparent; border-right: 4px solid transparent;
  border-top: 4px solid currentColor; opacity: .6;
}
.nav-drop-menu {
  position: absolute; top: calc(100% + 8px); left: 0; min-width: 190px;
  background: var(--bg-elevated); border: 1px solid var(--border);
  border-radius: var(--radius-sm); box-shadow: var(--shadow-md);
  padding: 6px; display: none; max-height: 60vh; overflow: auto;
}
.nav-drop.open .nav-drop-menu { display: block; }
.nav-drop-menu a {
  display: flex; justify-content: space-between; gap: 12px;
  padding: 8px 10px; border-radius: 6px; font-size: 14px; color: var(--text);
}
.nav-drop-menu a:hover { background: var(--bg-soft); text-decoration: none; }
.nav-drop-menu .cnt { color: var(--text-faint); font-size: 12px; }

.search-bar { border-top: 1px solid var(--border); background: var(--bg-elevated); }
.search-form { display: flex; gap: 8px; padding: 12px 24px; }
.search-form input {
  flex: 1; padding: 10px 14px; font-size: 15px; font-family: inherit;
  border: 1px solid var(--border-strong); border-radius: var(--radius-sm);
  background: var(--bg); color: var(--text);
}
.search-form input:focus { outline: 2px solid var(--accent); outline-offset: 1px; }
.search-form button, .btn {
  padding: 10px 18px; border-radius: var(--radius-sm);
  border: 1px solid var(--border-strong); background: var(--bg-elevated);
  color: var(--text); font-size: 14px; font-family: inherit; cursor: pointer;
}
.search-form button { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn-primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn:hover { text-decoration: none; filter: brightness(1.05); }

.icon-moon { display: none; }
html[data-theme="dark"] .icon-sun { display: none; }
html[data-theme="dark"] .icon-moon { display: block; }

/* ---------------- Layout ---------------- */

.site-main { padding: 32px 0 64px; }
.main-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 288px;
  gap: var(--grid-gap);
  align-items: start;
}
.content-col { min-width: 0; }

.card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
}

/* ---------------- 首页列表标题 ----------------
   站点名与简介只在 header 的 brand 里出现一次。这里刻意做成无卡片、
   无渐变的分区标题条，避免首屏出现两块「标题 + 副标题」的雷同区域。 */

.hero {
  display: flex; align-items: flex-end; justify-content: space-between;
  gap: 20px; margin-bottom: 22px;
  padding: 0 2px 14px;
  border-bottom: 1px solid var(--border);
}
.hero-kicker {
  display: block; margin-bottom: 2px;
  font-size: 11px; font-weight: 700; letter-spacing: .18em;
  text-transform: uppercase; color: var(--accent-text);
}
.hero h1 { margin: 0; font-size: 23px; letter-spacing: -.4px; }
.hero p { margin: 4px 0 0; color: var(--text-faint); font-size: 13.5px; }
.hero-meta {
  display: flex; align-items: center; gap: 16px;
  padding-bottom: 3px; color: var(--text-faint);
  font-size: 13px; white-space: nowrap;
}
.hero-meta a { color: var(--text-soft); }
.hero-meta a:hover { color: var(--accent-text); text-decoration: none; }

/* ---------------- Post list ---------------- */

.post-list { display: flex; flex-direction: column; gap: 16px; }

.post-card {
  padding: 22px 24px;
  transition: box-shadow .18s ease, border-color .18s ease, transform .18s ease;
}
.post-card:hover { box-shadow: var(--shadow-md); border-color: var(--border-strong); }
.post-card.pinned { border-left: 3px solid var(--accent); }

.post-card-head { margin-bottom: 10px; }
.post-card-meta {
  display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
  font-size: 12.5px; color: var(--text-faint); margin-bottom: 8px;
}
.post-card-title { margin: 0; font-size: 19px; line-height: 1.45; letter-spacing: -.2px; }
.post-card-title a { color: var(--text); }
.post-card-title a:hover { color: var(--accent-text); text-decoration: none; }

.post-card-excerpt {
  margin: 0 0 14px; color: var(--text-soft); font-size: 14.5px; line-height: 1.72;
  display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical;
  overflow: hidden;
}

.post-card-foot {
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px; flex-wrap: wrap;
  padding-top: 12px; border-top: 1px dashed var(--border);
  font-size: 12.5px; color: var(--text-faint);
}

.badge {
  display: inline-block; padding: 2px 8px; border-radius: 20px;
  font-size: 11.5px; line-height: 1.6; white-space: nowrap;
}
.badge-cat { background: var(--accent-soft); color: var(--accent-text); }
.badge-pin { background: #fff3e0; color: #b25e00; }
html[data-theme="dark"] .badge-pin { background: #3a2a12; color: #ffb95e; }

.tag-inline { display: flex; gap: 10px; flex-wrap: wrap; }
.tag-inline a { color: var(--text-faint); font-size: 12.5px; }
.tag-inline a:hover { color: var(--accent-text); text-decoration: none; }

.read-time { white-space: nowrap; }

/* ---------------- Page head ---------------- */

.page-head {
  display: flex; align-items: flex-end; justify-content: space-between;
  gap: 20px; margin-bottom: 22px; padding-bottom: 14px;
  border-bottom: 1px solid var(--border);
}
.page-kicker { font-size: 12px; color: var(--text-faint); letter-spacing: .08em; text-transform: uppercase; }
.page-head h1 { margin: 4px 0 0; font-size: 24px; letter-spacing: -.4px; }
.page-count { font-size: 13px; color: var(--text-faint); white-space: nowrap; }

/* ---------------- Article ---------------- */

.post-full { padding: 32px 38px 24px; }

.post-head { margin-bottom: 22px; padding-bottom: 20px; border-bottom: 1px solid var(--border); }
.post-head-meta {
  display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
  font-size: 13px; color: var(--text-faint); margin-bottom: 10px;
}
.post-head h1 {
  margin: 0; font-size: 31px; line-height: 1.32; letter-spacing: -.8px; font-weight: 700;
}
.post-tags { margin-top: 14px; }

.post-abstract {
  position: relative;
  margin: 0 0 26px; padding: 16px 18px 16px 18px;
  background: var(--bg-soft); border-radius: var(--radius-sm);
  border-left: 3px solid var(--accent);
  font-size: 14.5px; color: var(--text-soft); line-height: 1.7;
}
.abstract-label {
  display: inline-block; margin-right: 10px; padding: 1px 8px;
  background: var(--accent-soft); color: var(--accent-text);
  border-radius: 4px; font-size: 12px; font-weight: 600;
}

/* 正文排版 */
.post-body { font-size: 16.5px; line-height: 1.85; color: var(--text); }
.post-body > *:first-child { margin-top: 0; }
.post-body > *:last-child { margin-bottom: 0; }

.post-body h1, .post-body h2, .post-body h3,
.post-body h4, .post-body h5, .post-body h6 {
  margin: 2em 0 .7em; line-height: 1.35; letter-spacing: -.3px;
  scroll-margin-top: 90px;
}
.post-body h1 { font-size: 27px; }
.post-body h2 {
  font-size: 23px; padding-bottom: 8px; border-bottom: 1px solid var(--border);
}
.post-body h3 { font-size: 19px; }
.post-body h4 { font-size: 17px; }
.post-body h5, .post-body h6 { font-size: 15.5px; color: var(--text-soft); }

.post-body p { margin: 1em 0; }
.post-body ul, .post-body ol { margin: 1em 0; padding-left: 1.6em; }
.post-body li { margin: .4em 0; }
.post-body li > ul, .post-body li > ol { margin: .3em 0; }

.post-body blockquote {
  margin: 1.4em 0; padding: 12px 20px;
  border-left: 3px solid var(--accent);
  background: var(--bg-soft); border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--text-soft);
}
.post-body blockquote p { margin: .4em 0; }

.post-body hr {
  margin: 2.4em 0; border: 0; height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-strong), transparent);
}

.post-body strong { font-weight: 650; }
.post-body em { font-style: italic; }
.post-body del { color: var(--text-faint); }

.post-body a {
  color: var(--accent-text);
  border-bottom: 1px solid color-mix(in srgb, var(--accent) 35%, transparent);
}
.post-body a:hover { border-bottom-color: var(--accent); text-decoration: none; }

.post-body img {
  border-radius: var(--radius-sm); border: 1px solid var(--border);
  margin: 1.2em 0; display: block;
}

/* 行内代码 */
.post-body .inline-code {
  padding: .16em .42em; margin: 0 .1em;
  font-family: var(--font-mono); font-size: .875em;
  background: var(--code-bg); border: 1px solid var(--code-border);
  border-radius: 5px; color: #c7254e; word-break: break-word;
}
html[data-theme="dark"] .post-body .inline-code { color: #ff8fa3; }

/* ---------------- 代码块（重点） ---------------- */

.code-block {
  position: relative;
  margin: 1.5em 0;
  border: 1px solid var(--code-border);
  border-radius: 10px;
  background: var(--code-bg);
  overflow: hidden;
}
.code-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 7px 12px 7px 14px;
  background: color-mix(in srgb, var(--code-bg) 60%, var(--bg-soft));
  border-bottom: 1px solid var(--code-border);
  min-height: 36px;
}
.code-lang {
  font-family: var(--font-mono); font-size: 11.5px;
  text-transform: uppercase; letter-spacing: .06em;
  color: var(--text-faint); font-weight: 600;
}
.code-copy {
  display: inline-flex; align-items: center; gap: 5px;
  padding: 4px 10px; border-radius: 6px;
  border: 1px solid var(--code-border); background: var(--bg-elevated);
  color: var(--text-soft); font-size: 12px; font-family: inherit;
  cursor: pointer; opacity: .75; transition: opacity .15s, color .15s, border-color .15s;
}
.code-block:hover .code-copy { opacity: 1; }
.code-copy:hover { color: var(--accent-text); border-color: var(--accent); }
.code-copy.copied {
  color: #12805c; border-color: #12805c; background: color-mix(in srgb, #12805c 10%, transparent);
}
html[data-theme="dark"] .code-copy.copied { color: #4ade80; border-color: #4ade80; }

.code-block pre {
  margin: 0; padding: 16px 18px;
  overflow-x: auto; overflow-y: hidden;
  font-family: var(--font-mono);
  font-size: 13.5px; line-height: 1.72;
  tab-size: 4;
  -webkit-overflow-scrolling: touch;
}
.code-block pre code {
  font-family: inherit; font-size: inherit;
  background: none; padding: 0; border: 0;
  color: var(--text); white-space: pre;
  display: block;
}
/* 自定义滚动条 */
.code-block pre::-webkit-scrollbar { height: 8px; }
.code-block pre::-webkit-scrollbar-track { background: transparent; }
.code-block pre::-webkit-scrollbar-thumb {
  background: var(--border-strong); border-radius: 4px;
}
.code-block pre::-webkit-scrollbar-thumb:hover { background: var(--text-faint); }

/* 行号（可选，靠 CSS 计数器） */
.code-block.with-lines pre code { counter-reset: ln; }
.code-block.with-lines pre code .line { display: block; }
.code-block.with-lines pre code .line::before {
  counter-increment: ln;
  content: counter(ln);
  display: inline-block; width: 2.2em; margin-right: 1em;
  text-align: right; color: var(--text-faint); opacity: .55;
  user-select: none;
}

/* ---------------- 表格 ---------------- */

.post-body .table-wrap {
  margin: 1.5em 0; overflow-x: auto;
  border: 1px solid var(--border); border-radius: var(--radius-sm);
}
.post-body table { width: 100%; border-collapse: collapse; font-size: 14.5px; }
.post-body th, .post-body td {
  padding: 10px 14px; border-bottom: 1px solid var(--border); text-align: left;
}
.post-body th { background: var(--bg-soft); font-weight: 650; white-space: nowrap; }
.post-body tbody tr:last-child td { border-bottom: 0; }
.post-body tbody tr:hover { background: color-mix(in srgb, var(--bg-soft) 60%, transparent); }

/* ---------------- 目录 ---------------- */

.toc {
  margin: 0 0 26px; padding: 14px 18px;
  background: var(--bg-soft); border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  font-size: 14px;
}
.toc-head {
  display: flex; align-items: center; justify-content: space-between;
  font-weight: 650; font-size: 13px; color: var(--text-soft);
  letter-spacing: .04em; margin-bottom: 8px;
}
.toc-toggle {
  border: 0; background: none; cursor: pointer; color: var(--text-faint);
  font-size: 16px; line-height: 1; padding: 0 4px; font-family: inherit;
}
.toc-list { margin: 0; padding: 0; list-style: none; }
.toc-list li { margin: 0; }
.toc-list a {
  display: block; padding: 4px 0; color: var(--text-soft);
  font-size: 13.5px; border-left: 2px solid transparent; padding-left: 10px;
  margin-left: -10px;
}
.toc-list a:hover, .toc-list a.active {
  color: var(--accent-text); border-left-color: var(--accent); text-decoration: none;
}
.toc-list .lv3 a { padding-left: 26px; font-size: 13px; }
.toc.collapsed .toc-list { display: none; }

/* ---------------- 文章底部 ---------------- */

.post-foot {
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px; flex-wrap: wrap;
  margin-top: 32px; padding-top: 18px;
  border-top: 1px solid var(--border);
  font-size: 13px; color: var(--text-faint);
}
.btn-copy-link {
  padding: 7px 14px; border-radius: var(--radius-sm);
  border: 1px solid var(--border-strong); background: var(--bg-elevated);
  color: var(--text-soft); font-size: 13px; font-family: inherit; cursor: pointer;
}
.btn-copy-link:hover { color: var(--accent-text); border-color: var(--accent); }

.post-nav {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 14px; margin-top: 18px;
}
.post-nav-item {
  display: flex; flex-direction: column; gap: 5px;
  padding: 16px 18px; color: var(--text);
}
.post-nav-item:hover { text-decoration: none; border-color: var(--border-strong); }
.post-nav-item.disabled { border-style: dashed; opacity: .45; }
.pn-label { font-size: 12px; color: var(--text-faint); }
.pn-title { font-size: 14.5px; line-height: 1.5; }
.post-nav-item.next { text-align: right; }

.related { margin-top: 18px; padding: 20px 24px; }
.related-list { margin: 0; padding: 0; list-style: none; }
.related-list li {
  display: flex; justify-content: space-between; gap: 16px;
  padding: 9px 0; border-bottom: 1px dashed var(--border);
  font-size: 14px;
}
.related-list li:last-child { border-bottom: 0; }
.related-list time { color: var(--text-faint); font-size: 12.5px; white-space: nowrap; }

/* ---------------- 分页 ---------------- */

.pager {
  display: flex; align-items: center; justify-content: center;
  gap: 6px; flex-wrap: wrap; margin-top: 30px;
}
.pager-btn, .pager-num {
  display: inline-flex; align-items: center; justify-content: center;
  min-width: 38px; height: 38px; padding: 0 14px;
  border: 1px solid var(--border); border-radius: var(--radius-sm);
  background: var(--bg-elevated); color: var(--text-soft);
  font-size: 14px; transition: all .15s;
}
.pager-num { padding: 0 10px; }
a.pager-btn:hover, a.pager-num:hover {
  border-color: var(--accent); color: var(--accent-text); text-decoration: none;
}
.pager-num.active {
  background: var(--accent); border-color: var(--accent);
  color: #fff; font-weight: 600;
}
.pager-btn.disabled { opacity: .4; cursor: not-allowed; }
.pager-gap { color: var(--text-faint); padding: 0 2px; user-select: none; }

/* ---------------- 侧栏 ---------------- */

.sidebar {
  display: flex; flex-direction: column; gap: 16px;
  position: sticky; top: 88px;
}
.sidebar .card { padding: 18px 20px; }

.profile-card { text-align: center; }
.avatar {
  width: 56px; height: 56px; margin: 0 auto 12px;
  display: grid; place-items: center; border-radius: 50%;
  background: linear-gradient(135deg, color-mix(in srgb, var(--accent) 70%, #22223b), #a855f7);
  color: #fff; font-family: inherit; font-size: 22px; font-weight: 700;
}
.profile-card h3 { margin: 0 0 4px; font-size: 15.5px; }
.profile-card .muted { margin: 0; font-size: 13px; color: var(--text-faint); }
.stat-row {
  display: flex; margin-top: 16px; padding-top: 14px;
  border-top: 1px solid var(--border);
}
.stat-row > div { flex: 1; display: flex; flex-direction: column; gap: 2px; }
.stat-row strong { font-size: 17px; color: var(--text); }
.stat-row span { font-size: 11.5px; color: var(--text-faint); }

.card-title {
  margin: 0 0 12px; font-size: 13px; font-weight: 650;
  color: var(--text-soft); letter-spacing: .05em;
}

.cat-list, .archive-list, .recent-list { margin: 0; padding: 0; list-style: none; }
.cat-list li a, .archive-list li a {
  display: flex; align-items: center; justify-content: space-between;
  gap: 10px; padding: 6px 0; font-size: 13.5px; color: var(--text-soft);
}
.cat-list li a:hover, .archive-list li a:hover { color: var(--accent-text); text-decoration: none; }
.cat-name { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.cat-count {
  flex: 0 0 auto; min-width: 22px; text-align: center;
  padding: 0 6px; border-radius: 10px;
  background: var(--bg-soft); color: var(--text-faint); font-size: 11.5px;
}

.tag-cloud { display: flex; flex-wrap: wrap; gap: 7px; }
.tag-pill {
  padding: 3px 10px; border-radius: 20px;
  background: var(--bg-soft); color: var(--text-soft);
  font-size: 12.5px; line-height: 1.7;
}
.tag-pill:hover {
  background: var(--accent-soft); color: var(--accent-text); text-decoration: none;
}
.tag-pill sup { font-size: 9.5px; opacity: .6; margin-left: 2px; }

.recent-list li { padding: 6px 0; font-size: 13.5px; }
.recent-list li a { color: var(--text-soft); display: block; }
.recent-list li a:hover { color: var(--accent-text); text-decoration: none; }

.card-more { display: inline-block; margin-top: 10px; font-size: 12.5px; }

.empty-hint, .muted { color: var(--text-faint); font-size: 13px; }

/* ---------------- 归档 ---------------- */

.archive-timeline { display: flex; flex-direction: column; gap: 16px; }
.archive-group { padding: 22px 26px; }
.archive-month {
  display: flex; align-items: baseline; gap: 10px;
  margin: 0 0 12px; font-size: 18px; letter-spacing: -.2px;
}
.archive-month a { color: var(--text); }
.archive-month .cnt { font-size: 12.5px; color: var(--text-faint); font-weight: 400; }
.archive-items { margin: 0; padding: 0; list-style: none; }
.archive-items li {
  display: flex; align-items: baseline; gap: 14px;
  padding: 8px 0; border-bottom: 1px dashed var(--border);
  font-size: 14.5px;
}
.archive-items li:last-child { border-bottom: 0; }
.archive-items time {
  flex: 0 0 48px; font-family: var(--font-mono);
  font-size: 12.5px; color: var(--text-faint);
}
.archive-items a { flex: 1; color: var(--text); }
.archive-cat {
  flex: 0 0 auto; font-size: 11.5px; color: var(--text-faint);
  padding: 1px 8px; background: var(--bg-soft); border-radius: 10px;
}

/* ---------------- 空状态 ---------------- */

.empty-state { padding: 56px 32px; text-align: center; }
.empty-state h1 { margin: 0 0 8px; font-size: 56px; color: var(--text-faint); }
.empty-state h2 { margin: 0 0 8px; font-size: 20px; }
.empty-state p { margin: 0 0 18px; color: var(--text-soft); }
.error-actions { display: flex; gap: 10px; justify-content: center; }

/* ---------------- Footer ---------------- */

.site-footer {
  border-top: 1px solid var(--border);
  background: var(--bg-elevated);
  padding: 24px 0;
}
.footer-inner {
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px; flex-wrap: wrap;
  font-size: 13px; color: var(--text-faint);
}
.footer-inner p { margin: 0; }
.footer-meta { display: flex; gap: 16px; }

/* ---------------- 响应式 ---------------- */

@media (max-width: 980px) {
  .main-grid { grid-template-columns: minmax(0, 1fr); }
  .sidebar { position: static; order: 2; }
  .content-col { order: 1; }
}

@media (max-width: 720px) {
  .wrap { padding: 0 16px; }
  .header-inner { height: 60px; gap: 12px; }
  .brand-text small { display: none; }
  .main-nav > a { padding: 8px; font-size: 13.5px; }
  .main-nav > a:nth-child(2) { display: none; }  /* 隐藏"归档"，侧栏仍有入口 */
  .nav-drop { display: none; }

  .site-main { padding: 20px 0 40px; }
  .hero { flex-direction: column; align-items: flex-start; gap: 8px; padding-bottom: 12px; }
  .hero h1 { font-size: 20px; }
  .hero-meta { padding-bottom: 0; gap: 12px; }

  .post-card { padding: 18px; }
  .post-card-title { font-size: 17px; }
  .post-card-excerpt { -webkit-line-clamp: 2; font-size: 14px; }

  .post-full { padding: 22px 18px 18px; }
  .post-head h1 { font-size: 24px; letter-spacing: -.4px; }
  .post-body { font-size: 16px; line-height: 1.8; }
  .post-body h2 { font-size: 20px; }
  .post-body h3 { font-size: 17.5px; }

  .code-block pre { font-size: 12.5px; padding: 13px 12px; }
  .code-copy { font-size: 11.5px; padding: 3px 8px; }

  .post-nav { grid-template-columns: 1fr; }
  .post-nav-item.next { text-align: left; }
  .post-nav-item.disabled { display: none; }

  .archive-group { padding: 18px; }
  .archive-items li { flex-wrap: wrap; gap: 8px; }
  .archive-items a { flex: 1 1 100%; order: 3; }
}

@media (prefers-reduced-motion: reduce) {
  * { animation-duration: .01ms !important; transition-duration: .01ms !important; }
  html { scroll-behavior: auto; }
}

/* 打印 */
@media print {
  .site-header, .sidebar, .site-footer, .pager, .post-nav, .related, .toc,
  .code-copy, .btn-copy-link { display: none !important; }
  .main-grid { grid-template-columns: 1fr; }
  .card { border: 0; box-shadow: none; }
  .post-body { font-size: 12pt; }
  .code-block pre { white-space: pre-wrap; word-break: break-all; }
  .code-block { break-inside: avoid; }
}