/* ================= 星慕小栈 StarMuse — 暗色星空风 ================= */
:root {
  --bg: #0b0e16;
  --bg-soft: #11151f;
  --surface: #141a26;
  --surface-2: #19212f;
  --border: #26303f;
  --border-soft: rgba(95, 214, 200, 0.16);
  --text: #e9eef6;
  --text-2: #9aa9bd;
  --text-3: #5f7088;
  --accent: #5fd6c8;
  --accent-dim: rgba(95, 214, 200, 0.12);
  --accent-2: #f3b066;
  --accent-2-dim: rgba(243, 176, 102, 0.12);
  --danger: #f47067;
  --radius: 14px;
  --radius-lg: 20px;
  --font: "Sarasa UI SC", "MiSans", "HarmonyOS Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  --mono: "Cascadia Code", "JetBrains Mono", Consolas, "Courier New", monospace;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  line-height: 1.7;
  min-height: 100dvh;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; }
button { font-family: inherit; }

/* 背景网格 */
.bg-grid {
  position: fixed; inset: 0; z-index: -1;
  background-image:
    linear-gradient(rgba(95, 214, 200, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(95, 214, 200, 0.04) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: radial-gradient(ellipse 90% 60% at 50% 0%, #000 30%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 90% 60% at 50% 0%, #000 30%, transparent 75%);
}

/* ============ 公告弹窗 ============ */
.announce-overlay{position:fixed;inset:0;z-index:200;display:flex;align-items:center;justify-content:center;
  background:rgba(6,9,15,0.72);backdrop-filter:blur(4px);padding:20px;animation:annFade .2s ease}
@keyframes annFade{from{opacity:0}to{opacity:1}}
.announce-card{width:min(560px,94vw);max-height:84vh;overflow:auto;background:var(--surface);
  border:1px solid var(--border-soft);border-radius:var(--radius-lg);
  box-shadow:0 24px 70px rgba(0,0,0,.5);padding:26px 28px;animation:annPop .25s cubic-bezier(.2,.9,.3,1.2)}
@keyframes annPop{from{transform:translateY(14px) scale(.97);opacity:0}to{transform:none;opacity:1}}
.announce-head{margin-bottom:14px}
.announce-badge{display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:600;
  color:var(--accent);background:var(--accent-dim);border:1px solid var(--border-soft);
  padding:5px 12px;border-radius:999px}
.announce-body{font-size:14.5px;line-height:1.85;color:var(--text)}
.announce-body h2,.announce-body h3{color:var(--text);border-color:var(--border)}
.announce-foot{margin-top:20px;text-align:right}
.announce-close-btn{background:var(--accent);color:#06231d;border:none;border-radius:9px;
  padding:10px 22px;font-weight:600;font-size:14px;cursor:pointer;transition:.15s}
.announce-close-btn:hover{filter:brightness(1.08)}

/* ============ Header ============ */
.site-header {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: blur(14px);
  background: rgba(11, 14, 22, 0.82);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  max-width: 1180px; margin: 0 auto;
  padding: 0 24px; height: 64px;
  display: flex; align-items: center; justify-content: space-between;
}
.logo { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 18px; letter-spacing: 0.5px; }
.logo em { font-style: normal; color: var(--accent); font-size: 13px; font-weight: 600; opacity: 0.85; }
.site-nav { display: flex; gap: 6px; }
.site-nav a {
  padding: 7px 16px; border-radius: 10px;
  font-size: 14.5px; color: var(--text-2);
  transition: color .18s, background .18s;
}
.site-nav a:hover { color: var(--text); background: var(--surface-2); }
.site-nav a.active { color: var(--accent); background: var(--accent-dim); font-weight: 600; }

/* ============ 布局 ============ */
.app-main { max-width: 1180px; margin: 0 auto; padding: 36px 24px 80px; min-height: 60dvh; }

/* ============ Hero ============ */
.hero {
  display: grid; grid-template-columns: 1.25fr 0.75fr; gap: 36px;
  align-items: center;
  padding: 44px 0 52px;
  border-bottom: 1px dashed var(--border);
  margin-bottom: 40px;
}
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 12.5px; color: var(--accent);
  background: var(--accent-dim); border: 1px solid var(--border-soft);
  padding: 5px 14px; border-radius: 999px; margin-bottom: 18px;
  letter-spacing: 1px;
}
.hero-badge .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--accent); animation: pulse 2s infinite; }
@keyframes pulse { 0%,100% { opacity: 1; transform: scale(1);} 50% { opacity: .45; transform: scale(.8);} }
.hero h1 {
  font-size: clamp(30px, 4.6vw, 46px);
  line-height: 1.22; letter-spacing: -1px; font-weight: 800;
  margin-bottom: 16px;
}
.hero h1 .hl { color: var(--accent); }
.hero h1 .hl2 { color: var(--accent-2); }
.hero p.sub { color: var(--text-2); font-size: 16px; max-width: 56ch; margin-bottom: 26px; }
.hero-stats { display: flex; gap: 34px; }
.hero-stats .stat b { display: block; font-size: 26px; color: var(--accent); font-family: var(--mono); }
.hero-stats .stat span { font-size: 13px; color: var(--text-3); }
.hero-art { display: flex; justify-content: center; }
.hero-art svg { width: 100%; max-width: 330px; height: auto; animation: float 6s ease-in-out infinite; }
@keyframes float { 0%,100% { transform: translateY(0);} 50% { transform: translateY(-12px);} }
@media (prefers-reduced-motion: reduce) {
  .hero-art svg, .hero-badge .dot { animation: none; }
}

/* ============ 工具条：搜索 + 筛选 ============ */
.toolbar { display: flex; flex-wrap: wrap; gap: 14px; align-items: center; margin-bottom: 28px; }
.search-box {
  flex: 1; min-width: 240px;
  display: flex; align-items: center; gap: 10px;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 12px; padding: 10px 16px;
  transition: border-color .2s;
}
.search-box:focus-within { border-color: var(--accent); }
.search-box svg { flex: none; color: var(--text-3); }
.search-box input {
  flex: 1; background: none; border: none; outline: none;
  color: var(--text); font-size: 14.5px; font-family: inherit;
}
.search-box input::placeholder { color: var(--text-3); }
.filter-chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip {
  border: 1px solid var(--border); background: var(--surface);
  color: var(--text-2); font-size: 13px;
  padding: 7px 15px; border-radius: 999px; cursor: pointer;
  transition: all .18s;
}
.chip:hover { border-color: var(--accent); color: var(--accent); }
.chip.active { background: var(--accent-dim); border-color: var(--accent); color: var(--accent); font-weight: 600; }

/* ============ 文章卡片 ============ */
.section-title { display: flex; align-items: center; gap: 12px; margin: 6px 0 22px; }
.section-title h2 { font-size: 21px; letter-spacing: -0.3px; }
.section-title .line { flex: 1; height: 1px; background: var(--border); }
.section-title .count { font-size: 13px; color: var(--text-3); font-family: var(--mono); }

.post-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 22px; }
.post-card {
  display: flex; flex-direction: column;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-lg); overflow: hidden;
  transition: transform .22s cubic-bezier(0.16,1,0.3,1), border-color .22s, box-shadow .22s;
  cursor: pointer;
}
.post-card:hover {
  transform: translateY(-5px);
  border-color: var(--border-soft);
  box-shadow: 0 14px 40px rgba(0,0,0,0.35), 0 0 0 1px var(--border-soft);
}
.post-card:active { transform: scale(0.985); }
.card-cover { height: 130px; position: relative; display: flex; align-items: center; justify-content: center; overflow: hidden; }
.card-cover svg.icon { width: 52px; height: 52px; position: relative; z-index: 1; }
.card-cover .cover-deco { position: absolute; inset: 0; opacity: 0.9; }
.card-body { padding: 20px 22px 22px; display: flex; flex-direction: column; flex: 1; }
.card-meta { display: flex; align-items: center; gap: 10px; font-size: 12.5px; color: var(--text-3); margin-bottom: 10px; font-family: var(--mono); }
.card-meta .cat { color: var(--accent-2); font-family: var(--font); font-weight: 600; }
.post-card h3 { font-size: 17.5px; line-height: 1.45; margin-bottom: 9px; letter-spacing: -0.2px; }
.post-card:hover h3 { color: var(--accent); }
.post-card p.excerpt { font-size: 13.8px; color: var(--text-2); flex: 1; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.card-tags { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 15px; }
.tag-pill {
  font-size: 11.8px; color: var(--text-2);
  background: var(--surface-2); border: 1px solid var(--border);
  padding: 3px 10px; border-radius: 999px;
  transition: all .15s;
}
.tag-pill:hover { color: var(--accent); border-color: var(--accent); }

/* 空状态 */
.empty-state { text-align: center; padding: 70px 20px; color: var(--text-3); }
.empty-state svg { margin-bottom: 16px; opacity: 0.5; }
.empty-state p { font-size: 15px; }
.empty-state button {
  margin-top: 18px; padding: 9px 22px; border-radius: 10px;
  background: var(--accent-dim); border: 1px solid var(--accent);
  color: var(--accent); cursor: pointer; font-size: 14px;
}

/* ============ 文章详情 ============ */
.article-page { max-width: 800px; margin: 0 auto; }
.breadcrumb { display: flex; align-items: center; gap: 8px; font-size: 13.5px; color: var(--text-3); margin-bottom: 26px; }
.breadcrumb a { color: var(--text-2); }
.breadcrumb a:hover { color: var(--accent); }
.article-head { margin-bottom: 34px; }
.article-head .cat-badge {
  display: inline-block; font-size: 12.5px; font-weight: 600;
  color: var(--accent-2); background: var(--accent-2-dim);
  border: 1px solid rgba(232,160,76,0.3);
  padding: 4px 13px; border-radius: 999px; margin-bottom: 16px;
}
.article-head h1 { font-size: clamp(26px, 3.6vw, 36px); line-height: 1.32; letter-spacing: -0.6px; margin-bottom: 16px; }
.article-info { display: flex; flex-wrap: wrap; align-items: center; gap: 16px; font-size: 13.5px; color: var(--text-3); font-family: var(--mono); }
.article-info .sep { opacity: 0.4; }
.article-head .card-tags { margin-top: 16px; }

/* Markdown 正文 */
.md-body { font-size: 15.5px; color: #d5dde6; }
.md-body h2 {
  font-size: 23px; margin: 42px 0 16px; padding-bottom: 10px;
  border-bottom: 1px solid var(--border); letter-spacing: -0.3px;
  color: var(--text);
}
.md-body h3 { font-size: 18.5px; margin: 32px 0 12px; color: var(--text); }
.md-body h4 { font-size: 16px; margin: 24px 0 10px; color: var(--text); }
.md-body p { margin: 14px 0; }
.md-body a { color: var(--accent); border-bottom: 1px dashed rgba(88,230,192,0.4); }
.md-body a:hover { border-bottom-style: solid; }
.md-body strong { color: var(--text); }
.md-body ul, .md-body ol { margin: 14px 0; padding-left: 26px; }
.md-body li { margin: 7px 0; }
.md-body li::marker { color: var(--accent); }
.md-body blockquote {
  margin: 20px 0; padding: 14px 20px;
  background: var(--accent-dim); border-left: 3px solid var(--accent);
  border-radius: 0 10px 10px 0; color: var(--text-2);
}
.md-body blockquote p { margin: 4px 0; }
.md-body code {
  font-family: var(--mono); font-size: 13.5px;
  background: var(--surface-2); border: 1px solid var(--border);
  padding: 2px 7px; border-radius: 6px; color: var(--accent-2);
}
.md-body pre {
  margin: 20px 0; padding: 18px 20px;
  background: #0a0e14; border: 1px solid var(--border);
  border-radius: 12px; overflow-x: auto; position: relative;
}
.md-body pre code { background: none; border: none; padding: 0; color: #c9d6e3; font-size: 13.5px; line-height: 1.65; }
.md-body pre .code-lang {
  position: absolute; top: 10px; right: 14px;
  font-size: 11px; color: var(--text-3); font-family: var(--mono);
  text-transform: uppercase; letter-spacing: 1px;
}
.md-body table { width: 100%; border-collapse: collapse; margin: 20px 0; font-size: 14px; }
.md-body th, .md-body td { border: 1px solid var(--border); padding: 10px 14px; text-align: left; }
.md-body th { background: var(--surface-2); color: var(--text); font-weight: 600; }
.md-body tr:nth-child(even) td { background: rgba(255,255,255,0.015); }
.md-body hr { border: none; border-top: 1px dashed var(--border); margin: 32px 0; }
.md-body img { border-radius: 12px; border: 1px solid var(--border); margin: 8px 0; }

/* 下载按钮块 */
.download-block {
  margin: 26px 0; padding: 22px 24px;
  background: linear-gradient(135deg, rgba(88,230,192,0.08), rgba(232,160,76,0.06));
  border: 1px solid var(--border-soft); border-radius: var(--radius-lg);
  display: flex; align-items: center; justify-content: space-between; gap: 18px; flex-wrap: wrap;
}
.download-block .dl-info b { font-size: 16px; display: block; margin-bottom: 4px; }
.download-block .dl-info span { font-size: 13px; color: var(--text-3); font-family: var(--mono); }
.btn-download {
  display: inline-flex; align-items: center; gap: 9px;
  background: var(--accent); color: #08251c;
  font-weight: 700; font-size: 14.5px;
  padding: 11px 26px; border-radius: 12px; border: none; cursor: pointer;
  transition: transform .15s, box-shadow .2s;
}
.btn-download:hover { box-shadow: 0 6px 24px rgba(88,230,192,0.35); transform: translateY(-2px); }
.btn-download:active { transform: scale(0.97); }

/* 上下篇导航 */
.post-nav { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 48px; }
.post-nav a {
  padding: 16px 20px; background: var(--surface);
  border: 1px solid var(--border); border-radius: var(--radius);
  transition: border-color .2s;
}
.post-nav a:hover { border-color: var(--accent); }
.post-nav a span { display: block; font-size: 12px; color: var(--text-3); margin-bottom: 5px; }
.post-nav a b { font-size: 14px; font-weight: 600; line-height: 1.4; }
.post-nav a.next { text-align: right; }
.post-nav a.disabled { opacity: 0.35; pointer-events: none; }

/* ============ 标签页 ============ */
.tags-cloud { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 44px; }
.tag-big {
  display: inline-flex; align-items: center; gap: 9px;
  background: var(--surface); border: 1px solid var(--border);
  padding: 10px 20px; border-radius: 12px; cursor: pointer;
  font-size: 14.5px; color: var(--text-2);
  transition: all .18s;
}
.tag-big:hover { transform: translateY(-3px); border-color: var(--accent); color: var(--accent); }
.tag-big.active { background: var(--accent-dim); border-color: var(--accent); color: var(--accent); font-weight: 600; }
.tag-big .cnt { font-family: var(--mono); font-size: 12px; background: var(--surface-2); padding: 1px 9px; border-radius: 999px; color: var(--text-3); }
.tag-big.active .cnt { background: rgba(88,230,192,0.18); color: var(--accent); }

.tag-post-list { display: flex; flex-direction: column; gap: 14px; }
.tag-post-item {
  display: flex; align-items: center; justify-content: space-between; gap: 20px;
  background: var(--surface); border: 1px solid var(--border);
  padding: 18px 24px; border-radius: var(--radius); cursor: pointer;
  transition: all .18s;
}
.tag-post-item:hover { border-color: var(--accent); transform: translateX(6px); }
.tag-post-item .t-left b { font-size: 15.5px; display: block; margin-bottom: 4px; }
.tag-post-item .t-left span { font-size: 13px; color: var(--text-3); }
.tag-post-item .t-date { font-family: var(--mono); font-size: 12.5px; color: var(--text-3); flex: none; }

/* ============ 关于页 ============ */
.about-page { max-width: 820px; margin: 0 auto; }
.about-hero {
  display: flex; gap: 28px; align-items: center;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 36px;
  margin-bottom: 28px;
}
.avatar-wrap { flex: none; }
.about-hero h1 { font-size: 27px; margin-bottom: 8px; }
.about-hero .bio { color: var(--text-2); font-size: 15px; }
.about-hero .bio .hl { color: var(--accent); }
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.about-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 26px 28px;
}
.about-card.wide { grid-column: 1 / -1; }
.about-card h2 { font-size: 17px; margin-bottom: 14px; display: flex; align-items: center; gap: 9px; }
.about-card h2 svg { color: var(--accent); }
.about-card p, .about-card li { font-size: 14.2px; color: var(--text-2); }
.about-card ul { padding-left: 20px; margin-top: 8px; }
.about-card li { margin: 7px 0; }
.about-card li::marker { color: var(--accent); }
.contact-row { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 14px; }
.contact-item {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 13.5px; color: var(--text-2);
  background: var(--surface-2); border: 1px solid var(--border);
  padding: 8px 16px; border-radius: 10px;
  transition: all .18s;
}
.contact-item:hover { color: var(--accent); border-color: var(--accent); }
.timeline { position: relative; padding-left: 22px; margin-top: 6px; }
.timeline::before { content: ""; position: absolute; left: 5px; top: 6px; bottom: 6px; width: 2px; background: var(--border); }
.tl-item { position: relative; padding: 6px 0 6px 14px; }
.tl-item::before {
  content: ""; position: absolute; left: -21px; top: 14px;
  width: 10px; height: 10px; border-radius: 50%;
  background: var(--bg); border: 2px solid var(--accent);
}
.tl-item b { font-size: 14px; color: var(--text); }
.tl-item p { font-size: 13.2px; }
.tl-item .tl-date { font-family: var(--mono); font-size: 12px; color: var(--accent-2); }

/* ============ 骨架屏 ============ */
.skeleton {
  background: linear-gradient(90deg, var(--surface) 25%, var(--surface-2) 50%, var(--surface) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.4s infinite;
  border-radius: var(--radius);
}
@keyframes shimmer { to { background-position: -200% 0; } }
.skeleton-hero { height: 180px; margin-bottom: 26px; }
.skeleton-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.skeleton-card { height: 260px; }

/* ============ 回到顶部 ============ */
.back-top {
  position: fixed; right: 26px; bottom: 30px; z-index: 40;
  width: 44px; height: 44px; border-radius: 12px;
  background: var(--surface-2); color: var(--text-2);
  border: 1px solid var(--border); cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  opacity: 0; pointer-events: none; transform: translateY(10px);
  transition: all .25s;
}
.back-top.show { opacity: 1; pointer-events: auto; transform: translateY(0); }
.back-top:hover { color: var(--accent); border-color: var(--accent); }

/* ============ Footer ============ */
.site-footer { border-top: 1px solid var(--border); padding: 30px 24px; }
.footer-inner { max-width: 1180px; margin: 0 auto; text-align: center; }
.footer-inner p { font-size: 13.5px; color: var(--text-2); }
.footer-inner .footer-sub { font-size: 12px; color: var(--text-3); margin-top: 6px; }

/* 页面切换动画 */
.page-enter { animation: pageIn .38s cubic-bezier(0.16,1,0.3,1); }
@keyframes pageIn { from { opacity: 0; transform: translateY(14px);} to { opacity: 1; transform: translateY(0);} }
@media (prefers-reduced-motion: reduce) { .page-enter { animation: none; } }

/* ============ 响应式 ============ */
@media (max-width: 860px) {
  .hero { grid-template-columns: 1fr; padding: 26px 0 36px; }
  .hero-art { display: none; }
  .about-grid { grid-template-columns: 1fr; }
  .about-hero { flex-direction: column; text-align: center; padding: 28px 22px; }
  .post-nav { grid-template-columns: 1fr; }
  .skeleton-row { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  .header-inner { padding: 0 16px; }
  .logo span em { display: none; }
  .site-nav a { padding: 7px 11px; font-size: 13.5px; }
  .app-main { padding: 24px 16px 60px; }
  .hero-stats { gap: 22px; }
}

/* ================= 新增：头部操作 / 主题切换 / 阅读进度 / 复制 / 目录 ================= */
:root {
  --accent-rgb: 88, 230, 192;
  --code-bg: #0a0e14;
  --code-text: #c9d6e3;
  --stripe: rgba(255, 255, 255, 0.015);
  --md-text: #d5dde6;
  --header-bg: rgba(13, 17, 23, 0.82);
}

/* 把少量硬编码颜色改为变量，便于主题切换 */
.site-header { background: var(--header-bg); }
.bg-grid {
  background-image:
    linear-gradient(rgba(var(--accent-rgb), 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(var(--accent-rgb), 0.05) 1px, transparent 1px);
}
.md-body { color: var(--md-text); }
.md-body pre { background: var(--code-bg); }
.md-body pre code { color: var(--code-text); }
.md-body tr:nth-child(even) td { background: var(--stripe); }
.md-body pre .code-lang { right: 52px; }

/* 头部 RSS / 主题按钮 */
.header-actions { display: flex; align-items: center; gap: 8px; margin-left: 6px; }
.icon-btn {
  width: 38px; height: 38px; border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  background: var(--surface-2); border: 1px solid var(--border);
  color: var(--text-2); cursor: pointer; transition: all .18s;
}
.icon-btn:hover { color: var(--accent); border-color: var(--accent); }
.icon-btn svg { width: 18px; height: 18px; }
.i-sun { display: block; }
.i-moon { display: none; }
[data-theme="light"] .i-sun { display: none; }
[data-theme="light"] .i-moon { display: block; }

/* 阅读进度条 */
.reading-progress {
  position: fixed; top: 0; left: 0; right: 0; height: 3px; z-index: 60;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  transform: scaleX(0); transform-origin: left; opacity: 0; transition: opacity .2s;
}
.reading-progress.active { opacity: 1; }

/* 代码复制按钮 */
.md-body pre .copy-btn {
  position: absolute; top: 10px; right: 14px; z-index: 2;
  font-family: var(--font); font-size: 11.5px; color: var(--text-3);
  background: var(--surface-2); border: 1px solid var(--border);
  padding: 3px 10px; border-radius: 7px; cursor: pointer; transition: all .15s;
}
.md-body pre .copy-btn:hover { color: var(--accent); border-color: var(--accent); }

/* 文章目录 TOC */
.md-body h2, .md-body h3 { scroll-margin-top: 84px; }
.toc {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 16px 20px; margin: 4px 0 30px;
}
.toc-title { font-size: 14px; font-weight: 600; color: var(--accent); margin-bottom: 10px; }
.toc ul { list-style: none; padding: 0; margin: 0; }
.toc li { margin: 5px 0; font-size: 13.5px; }
.toc li.lv-h3 { padding-left: 16px; }
.toc a { color: var(--text-2); cursor: pointer; }
.toc a:hover { color: var(--accent); }

/* ================= 明色主题 ================= */
[data-theme="light"] {
  --bg: #f4f7fa;
  --bg-soft: #e9eef4;
  --surface: #ffffff;
  --surface-2: #eef2f7;
  --border: #d8e0ea;
  --border-soft: rgba(15, 174, 142, 0.22);
  --text: #16202e;
  --text-2: #4d5d75;
  --text-3: #8a99b0;
  --accent: #0fae8e;
  --accent-dim: rgba(15, 174, 142, 0.12);
  --accent-2: #d9822b;
  --accent-2-dim: rgba(217, 130, 43, 0.12);
  --danger: #e0533f;
  --accent-rgb: 15, 174, 142;
  --code-bg: #f3f6fa;
  --code-text: #2a3b4d;
  --stripe: rgba(0, 0, 0, 0.03);
  --md-text: #2c3a4d;
  --header-bg: rgba(255, 255, 255, 0.85);
}
[data-theme="light"] .bg-grid {
  background-image:
    linear-gradient(rgba(var(--accent-rgb), 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(var(--accent-rgb), 0.08) 1px, transparent 1px);
}
[data-theme="light"] .post-card:hover { box-shadow: 0 14px 40px rgba(20, 40, 60, 0.12), 0 0 0 1px var(--border-soft); }
[data-theme="light"] .md-body tr:nth-child(even) td { background: var(--stripe); }