/* 千泷的个人主页 — 内容优先的经典个人博客 */

:root {
  --bg: #fdfdfd;
  --bg-soft: #f6f6f3;
  --bg-soft-2: #efeeea;
  --ink: #222222;
  --ink-soft: #444444;
  --ink-mute: #777777;
  --ink-faint: #999999;
  --rule: #e6e4dd;
  --accent: #d26911;
  --accent-hover: #b35309;
  --max: 1080px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #1a1917;
    --bg-soft: #232220;
    --bg-soft-2: #2c2b28;
    --ink: #e8e6df;
    --ink-soft: #c0bdb3;
    --ink-mute: #8a8780;
    --ink-faint: #6a6760;
    --rule: #34322c;
    --accent: #e8884a;
    --accent-hover: #f29960;
  }
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "PingFang SC",
               "Hiragino Sans GB", "Helvetica Neue", "Microsoft YaHei",
               "WenQuanYi Micro Hei", Helvetica, Arial, sans-serif;
  font-size: 15px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-hover); text-decoration: underline; }

.wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 28px;
}

/* ---------- Top header ---------- */
.topnav {
  background: var(--bg);
  border-bottom: 1px solid var(--rule);
  padding: 22px 0;
}
.topnav .row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}
.topnav .brand {
  font-size: 20px;
  font-weight: 700;
  color: var(--ink);
  letter-spacing: -0.01em;
}
.topnav .brand a { color: var(--ink); text-decoration: none; }
.topnav .brand a:hover { color: var(--accent); }
.topnav .brand .tagline {
  font-size: 13px;
  font-weight: 400;
  color: var(--ink-mute);
  margin-left: 10px;
}
.topnav nav {
  display: flex;
  gap: 22px;
  font-size: 14px;
}
.topnav nav a {
  color: var(--ink-soft);
  text-decoration: none;
  white-space: nowrap;
}
.topnav nav a:hover, .topnav nav a.active {
  color: var(--accent);
}
.topnav nav a.nav-ext {
  margin-left: 6px;
  padding: 2px 10px;
  border: 1px solid var(--rule);
  border-radius: 4px;
  font-size: 13px;
  color: var(--ink-soft);
  transition: all .15s;
}
.topnav nav a.nav-ext:hover {
  color: var(--accent);
  border-color: var(--accent);
  background: rgba(210, 105, 17, 0.06);
}

/* ---------- Page intro ---------- */
.page-intro {
  padding: 32px 0 18px;
  border-bottom: 1px dashed var(--rule);
  margin-bottom: 32px;
}
.page-intro h1 {
  font-size: 28px;
  font-weight: 700;
  margin: 0 0 8px;
  letter-spacing: -0.01em;
}
.page-intro p {
  font-size: 15px;
  color: var(--ink-soft);
  margin: 0 0 6px;
}

/* ---------- Home directory cards ---------- */
.home-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin: 36px 0 12px;
}
.home-card {
  position: relative;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 18px;
  padding: 22px 24px;
  background: var(--bg-soft);
  border: 1px solid var(--rule);
  border-radius: 6px;
  color: var(--ink);
  text-decoration: none;
  transition: border-color .15s, transform .15s, box-shadow .15s;
}
.home-card:hover {
  border-color: var(--accent);
  transform: translateY(-1px);
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.04);
}
.home-card .hc-num {
  font-size: 32px;
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.02em;
}
.home-card .hc-meta { min-width: 0; }
.home-card h3 {
  font-size: 16px;
  font-weight: 700;
  margin: 0 0 4px;
  color: var(--ink);
  letter-spacing: -0.005em;
}
.home-card .hc-meta p {
  font-size: 12px;
  color: var(--ink-mute);
  margin: 0;
  line-height: 1.5;
}
.home-card .hc-arrow {
  font-size: 18px;
  color: var(--ink-mute);
  transition: color .15s, transform .15s;
}
.home-card:hover .hc-arrow {
  color: var(--accent);
  transform: translateX(3px);
}

/* ---------- Feed section header ---------- */
.feed-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 22px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--ink);
}
.feed-head h2 {
  font-size: 18px;
  font-weight: 700;
  margin: 0;
  color: var(--ink);
  letter-spacing: -0.005em;
}
.feed-head .feed-more {
  font-size: 13px;
  color: var(--ink-soft);
  text-decoration: none;
}
.feed-head .feed-more:hover { color: var(--accent); }

/* ---------- Two-column layout ---------- */
.cols {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 240px;
  gap: 56px;
  padding: 48px 0 64px;
}

/* ---------- Main feed ---------- */
.feed article.entry {
  padding: 4px 0 32px;
  margin-bottom: 32px;
  border-bottom: 1px solid var(--rule);
}
.feed article.entry:last-child {
  border-bottom: none;
}
.entry-title {
  font-size: 24px;
  font-weight: 600;
  line-height: 1.35;
  margin: 0 0 8px;
  letter-spacing: -0.01em;
}
.entry-title a {
  color: var(--ink);
  text-decoration: none;
}
.entry-title a:hover { color: var(--accent); }
.entry-meta {
  font-size: 13px;
  color: var(--ink-mute);
  margin: 0 0 14px;
}
.entry-meta .cat {
  margin-left: 10px;
  padding: 1px 8px;
  background: var(--bg-soft);
  border-radius: 3px;
  font-size: 12px;
  color: var(--ink-soft);
}
.entry-excerpt {
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink-soft);
  margin: 0 0 14px;
}
.entry-excerpt p { margin: 0 0 10px; }
.entry-more a {
  font-size: 14px;
  color: var(--accent);
  text-decoration: none;
}
.entry-more a:hover { text-decoration: underline; }

/* ---------- Compact list (blog) ---------- */
.post-list {
  list-style: none;
  margin: 0;
  padding: 0;
}
.post-list li {
  display: grid;
  grid-template-columns: 100px 1fr auto;
  gap: 18px;
  align-items: baseline;
  padding: 12px 0;
  border-bottom: 1px solid var(--rule);
}
.post-list li:last-child { border-bottom: none; }
.post-list time {
  font-size: 13px;
  color: var(--ink-mute);
  font-variant-numeric: tabular-nums;
}
.post-list a {
  color: var(--ink);
  text-decoration: none;
  font-size: 15px;
}
.post-list a:hover { color: var(--accent); }
.post-list .cat {
  font-size: 12px;
  color: var(--ink-faint);
}

/* ---------- Project list ---------- */
.project-list {
  list-style: none;
  margin: 0;
  padding: 0;
}
.project-list li {
  display: block;
  padding: 20px 0;
  border-bottom: 1px solid var(--rule);
}
.project-list li:last-child { border-bottom: none; }
.project-item {
  color: var(--ink);
  text-decoration: none;
  display: block;
}
.project-item:hover { color: var(--ink); text-decoration: none; }
.project-item .proj-letter {
  display: inline-block;
  width: 28px;
  height: 28px;
  line-height: 28px;
  text-align: center;
  background: var(--accent);
  color: #fff;
  border-radius: 4px;
  font-weight: 700;
  font-size: 14px;
  margin-right: 14px;
}
.project-item h3 {
  display: inline;
  font-size: 18px;
  font-weight: 600;
  margin: 0;
  color: var(--ink);
}
.project-item:hover h3 { color: var(--accent); }
.project-meta {
  margin-top: 6px;
  font-size: 13px;
  color: var(--ink-mute);
}
.project-meta time { font-variant-numeric: tabular-nums; }
.project-tags {
  margin-top: 8px;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.project-tag {
  font-size: 12px;
  color: var(--ink-mute);
  background: var(--bg-soft);
  padding: 2px 8px;
  border-radius: 3px;
}

/* ---------- Sidebar ---------- */
.sidebar {
  font-size: 14px;
}
.sidebar .widget {
  margin-bottom: 36px;
}
.sidebar .widget h3 {
  font-size: 13px;
  font-weight: 700;
  color: var(--ink);
  margin: 0 0 12px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--accent);
  letter-spacing: 0.02em;
}
.sidebar ul {
  list-style: none;
  margin: 0;
  padding: 0;
}
.sidebar li {
  padding: 6px 0;
  border-bottom: 1px dashed var(--rule);
  line-height: 1.55;
}
.sidebar li:last-child { border-bottom: none; }
.sidebar a {
  color: var(--ink-soft);
  text-decoration: none;
}
.sidebar a:hover { color: var(--accent); }
.sidebar .rss-badge {
  margin-left: 4px;
  font-size: 12px;
}
.sidebar .count {
  color: var(--ink-faint);
  font-size: 12px;
  margin-left: 6px;
}
.sidebar .about-box {
  background: var(--bg-soft);
  border: 1px solid var(--rule);
  padding: 16px;
  border-radius: 4px;
  font-size: 13px;
  color: var(--ink-soft);
  line-height: 1.75;
  text-align: center;
}
.sidebar .about-box .about-avatar {
  width: 96px;
  height: 96px;
  border-radius: 50%;
  object-fit: cover;
  display: block;
  margin: 4px auto 14px;
  border: 3px solid var(--bg);
  box-shadow: 0 0 0 1px var(--rule);
}
.sidebar .about-box p {
  margin: 0 0 10px;
  text-align: left;
}
.sidebar .about-box p:last-child { margin-bottom: 0; }
.sidebar .about-box strong { color: var(--ink); }

/* ---------- Search box ---------- */
.search-box {
  position: relative;
}
.search-box input[type="search"] {
  width: 100%;
  padding: 8px 12px;
  font-family: inherit;
  font-size: 13px;
  color: var(--ink);
  background: var(--bg);
  border: 1px solid var(--rule);
  border-radius: 4px;
  outline: none;
  transition: border-color .15s, box-shadow .15s;
  -webkit-appearance: none;
}
.search-box input[type="search"]:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(210, 105, 17, 0.12);
}
.search-results {
  display: none;
  position: absolute;
  top: 38px;
  left: 0;
  right: 0;
  z-index: 20;
  margin: 0;
  padding: 4px 0;
  list-style: none;
  background: var(--bg);
  border: 1px solid var(--rule);
  border-radius: 4px;
  max-height: 70vh;
  overflow-y: auto;
  box-shadow: 0 8px 24px rgba(0,0,0,0.08);
}
.search-results.show { display: block; }
.search-results li {
  padding: 0;
  border: none !important;
  border-bottom: 1px solid var(--rule) !important;
}
.search-results li:last-child { border-bottom: none !important; }
.search-results li.empty {
  padding: 14px;
  color: var(--ink-mute);
  font-size: 13px;
  text-align: center;
}
.search-results a {
  display: block;
  padding: 10px 12px;
  color: var(--ink) !important;
  text-decoration: none;
  transition: background .12s;
}
.search-results a:hover {
  background: var(--bg-soft);
}
.search-results .r-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--ink);
  line-height: 1.4;
  margin-bottom: 3px;
}
.search-results .r-meta {
  font-size: 11px;
  color: var(--ink-mute);
  margin-bottom: 4px;
}
.search-results .r-snip {
  font-size: 12px;
  color: var(--ink-soft);
  line-height: 1.5;
}
.search-results mark {
  background: rgba(210, 105, 17, 0.18);
  color: var(--accent);
  padding: 0 2px;
  border-radius: 2px;
}

/* ---------- WeChat box ---------- */
.wechat-box {
  text-align: center;
  background: var(--bg-soft);
  border: 1px solid var(--rule);
  border-radius: 4px;
  padding: 14px 12px 12px;
}
.wechat-qr {
  width: 100%;
  max-width: 180px;
  height: auto;
  display: block;
  margin: 0 auto 8px;
  border: 1px solid var(--rule);
  border-radius: 3px;
  background: #fff;
}
.wechat-cap {
  font-size: 12px;
  color: var(--ink-mute);
  margin: 0 0 10px;
}
.wechat-id {
  font-size: 13px;
  color: var(--ink-soft);
  margin: 8px 0 0;
  padding-top: 8px;
  border-top: 1px dashed var(--rule);
}
.wechat-id code {
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  background: var(--bg);
  border: 1px solid var(--rule);
  padding: 1px 6px;
  border-radius: 3px;
  font-size: 12px;
  color: var(--accent);
}

/* ---------- About page ---------- */
.about-content {
  max-width: 720px;
}
.about-content h2 {
  font-size: 20px;
  font-weight: 700;
  margin: 32px 0 12px;
  padding-bottom: 6px;
  border-bottom: 2px solid var(--accent);
  display: inline-block;
  letter-spacing: -0.01em;
}
.about-content p {
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink-soft);
  margin: 0 0 14px;
}
.about-content ul {
  list-style: none;
  margin: 0 0 20px;
  padding: 0;
}
.about-content ul li {
  padding: 10px 0;
  border-bottom: 1px dashed var(--rule);
  line-height: 1.6;
  color: var(--ink-soft);
}
.about-content ul li:last-child { border-bottom: none; }
.about-content strong { color: var(--ink); }

/* ---------- Footer ---------- */
footer.site-foot {
  border-top: 1px solid var(--rule);
  padding: 32px 0 48px;
  color: var(--ink-mute);
  font-size: 13px;
  text-align: center;
}
footer.site-foot a {
  color: var(--ink-soft);
  text-decoration: none;
  margin: 0 12px;
}
footer.site-foot a:hover { color: var(--accent); }
footer.site-foot .copyright {
  margin-top: 10px;
  color: var(--ink-faint);
  font-size: 12px;
}

/* ---------- Mobile ---------- */
@media (max-width: 840px) {
  .home-cards { grid-template-columns: 1fr; gap: 12px; margin: 28px 0 8px; }
  .home-card { padding: 16px 18px; }
  .home-card .hc-num { font-size: 26px; }
  .cols {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .sidebar { order: 2; }
}

@media (max-width: 600px) {
  body { font-size: 14px; }
  .wrap { padding: 0 18px; }
  .topnav .row { gap: 10px; }
  .topnav .brand { font-size: 17px; }
  .topnav .brand .tagline { display: none; }
  .topnav nav { gap: 10px; font-size: 13px; }
  .topnav nav a.nav-ext { display: none; }
  .home-cards { display: none; }
  .page-intro h1 { font-size: 22px; }
  .entry-title { font-size: 19px; }
  .entry-excerpt { font-size: 14px; line-height: 1.8; }
  .post-list li {
    grid-template-columns: 1fr;
    gap: 2px;
  }
  .post-list time { font-size: 12px; }
  footer.site-foot { padding: 24px 0 32px; line-height: 2; }
  footer.site-foot a { margin: 0 8px; }
}