@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Sans:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500;600;700&display=swap');

/* ── 变量 ── */
:root {
  --pink:       #eb879c;
  --pink-light: #ffb6c1;
  --dark:       #26171a;
  --dark-80:    rgba(38,23,26,.8);
  --dark-40:    rgba(38,23,26,.4);
  --dark-10:    rgba(38,23,26,.08);
  --bg:         #1c1014;
  --bg2:        #231419;
  --bg3:        #2e1920;
  --surface:    #321c22;
  --surface2:   #3d2028;
  --text:       #f5e8ec;
  --text-muted: #c89faa;
  --text-dim:   #9a7080;
  --border:     rgba(235,135,156,.18);
  --border-strong: rgba(235,135,156,.38);
  --shadow-sm:  0 2px 6px rgba(0,0,0,.35), 0 1px 2px rgba(235,135,156,.08);
  --shadow-md:  0 4px 16px rgba(0,0,0,.45), 0 2px 4px rgba(235,135,156,.12);
  --shadow-lg:  0 8px 32px rgba(0,0,0,.55), 0 2px 8px rgba(235,135,156,.14);
  --radius:     10px;
  --radius-sm:  6px;
  --radius-lg:  14px;
  --mono:       'JetBrains Mono', 'Cascadia Code', monospace;
  --sans:       'IBM Plex Sans', system-ui, sans-serif;
  --transition: 220ms cubic-bezier(.4,0,.2,1);
}

/* ── 重置 ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.7;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; height: auto; }
a { color: var(--pink); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--pink-light); }
a:focus-visible { outline: 2px solid var(--pink); outline-offset: 3px; border-radius: var(--radius-sm); }
ul, ol, menu { list-style: none; }
button, input, select, textarea { font: inherit; }

/* ── 工具 ── */
.site-wrapper { display: flex; flex-direction: column; min-height: 100vh; }
.wrap { width: 100%; max-width: 1160px; margin: 0 auto; padding: 0 20px; }
.eyebrow {
  display: inline-block;
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--pink);
  background: rgba(235,135,156,.12);
  border: 1px solid var(--border-strong);
  border-radius: 4px;
  padding: 2px 8px;
  margin-bottom: 8px;
}

/* ── 导航 details/summary ── */
.nav-details {
  position: relative;
  z-index: 200;
}
.nav-details[open] .nav-overlay { display: flex; }
.nav-details[open] .nav-hamburger span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-details[open] .nav-hamburger span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.nav-details[open] .nav-hamburger span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.nav-summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 24px;
  background: var(--bg2);
  border-bottom: 1px solid var(--border);
  cursor: pointer;
  list-style: none;
  user-select: none;
  gap: 16px;
}
.nav-summary::-webkit-details-marker { display: none; }
.nav-summary:focus-visible { outline: 2px solid var(--pink); outline-offset: -2px; }

.nav-brand-row { flex: 1; }
.nav-brand-text {
  font-family: var(--mono);
  font-size: 15px;
  font-weight: 700;
  color: var(--pink);
  letter-spacing: .04em;
}
.nav-logo { height: 32px; width: auto; }

.nav-hamburger {
  display: flex;
  flex-direction: column;
  gap: 5px;
  width: 26px;
  flex-shrink: 0;
  min-height: 40px;
  justify-content: center;
}
.nav-hamburger span {
  display: block;
  height: 2px;
  background: var(--pink-light);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}

.nav-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(28,16,20,.97);
  backdrop-filter: blur(8px);
  z-index: 199;
  align-items: center;
  justify-content: center;
  animation: fadeIn 200ms ease;
}
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

.nav-overlay-inner {
  width: min(480px, 90vw);
  display: flex;
  flex-direction: column;
  gap: 32px;
  align-items: center;
  text-align: center;
}
.nav-overlay-brand {
  font-family: var(--mono);
  font-size: 18px;
  font-weight: 700;
  color: var(--pink);
  letter-spacing: .06em;
}

.nav-menu { display: flex; flex-direction: column; gap: 4px; width: 100%; }
.nav-menu li a {
  display: block;
  padding: 12px 24px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: background var(--transition), border-color var(--transition), color var(--transition);
  min-height: 44px;
}
.nav-menu li a:hover {
  background: rgba(235,135,156,.1);
  border-color: var(--border-strong);
  color: var(--pink-light);
}

.nav-search-wrap { width: 100%; }
.nav-search {
  display: flex;
  gap: 8px;
  width: 100%;
}
.nav-search input {
  flex: 1;
  padding: 10px 14px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-size: 14px;
  min-height: 44px;
}
.nav-search input::placeholder { color: var(--text-dim); }
.nav-search input:focus { outline: 2px solid var(--pink); outline-offset: 0; }
.nav-search button {
  padding: 10px 18px;
  background: var(--pink);
  color: var(--dark);
  border: none;
  border-radius: var(--radius);
  font-weight: 600;
  cursor: pointer;
  min-height: 44px;
  transition: background var(--transition);
}
.nav-search button:hover { background: var(--pink-light); }

/* ── 粘性锚点条 ── */
.sticky-anchors {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bg2);
  border-bottom: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}
.sticky-inner {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  gap: 4px;
  overflow-x: auto;
  scrollbar-width: none;
}
.sticky-inner::-webkit-scrollbar { display: none; }
.anchor-link {
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 500;
  color: var(--text-muted);
  padding: 10px 12px;
  white-space: nowrap;
  min-height: 40px;
  display: flex;
  align-items: center;
  border-bottom: 2px solid transparent;
  transition: color var(--transition), border-color var(--transition);
}
.anchor-link:hover, .anchor-link.is-active {
  color: var(--pink);
  border-bottom-color: var(--pink);
}

/* ── 面包屑 ── */
.breadcrumb {
  font-size: 13px;
  color: var(--text-dim);
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  align-items: center;
  margin-bottom: 16px;
}
.breadcrumb a { color: var(--text-muted); }
.breadcrumb a:hover { color: var(--pink); }

/* ── 按钮 ── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 22px;
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 600;
  font-family: var(--mono);
  cursor: pointer;
  min-height: 44px;
  transition: background var(--transition), box-shadow var(--transition), transform var(--transition);
  text-decoration: none;
  border: none;
}
.btn:active { transform: scale(.97); }
.btn-primary {
  background: var(--pink);
  color: var(--dark);
  box-shadow: 0 2px 8px rgba(235,135,156,.35);
}
.btn-primary:hover { background: #f09aad; box-shadow: 0 4px 16px rgba(235,135,156,.45); color: var(--dark); }
.btn-secondary {
  background: var(--surface2);
  color: var(--pink-light);
  border: 1px solid var(--border-strong);
}
.btn-secondary:hover { background: var(--surface); color: var(--pink-light); }
.btn-outline {
  background: transparent;
  color: var(--text-muted);
  border: 1px solid var(--border);
}
.btn-outline:hover { border-color: var(--pink); color: var(--pink); }

/* ── Hero 首页 ── */
.hero-section { padding: 0; }
.hero-article {
  position: relative;
  min-height: 45vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: var(--bg2);
  border-bottom: 1px solid var(--border);
}
.hero-bg-dots {
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle, rgba(235,135,156,.2) 1px, transparent 1px);
  background-size: 22px 22px;
  pointer-events: none;
}
.hero-content {
  position: relative;
  text-align: center;
  padding: 48px 24px;
  max-width: 680px;
  z-index: 1;
}
.hero-icon-wrap { margin-bottom: 20px; display: flex; justify-content: center; }
.hero-icon { height: 56px; width: auto; }
.hero-icon-svg {
  font-size: 48px;
  color: var(--pink);
  display: block;
  line-height: 1;
  filter: drop-shadow(0 0 12px rgba(235,135,156,.5));
}
.hero-h1 {
  font-family: var(--mono);
  font-size: clamp(22px, 5vw, 36px);
  font-weight: 700;
  color: var(--text);
  line-height: 1.3;
  margin-bottom: 14px;
  letter-spacing: -.01em;
}
.hero-desc {
  font-size: 15px;
  color: var(--text-muted);
  margin-bottom: 28px;
  line-height: 1.7;
}
.hero-cta-group { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

/* ── 栏目 hero ── */
.cat-hero-section, .tag-hero-section, .about-top-section, .privacy-top-section, .entry-top-section {
  padding: 0;
}
.cat-hero-article, .tag-hero-article, .about-top-article, .privacy-top-article, .entry-top-article {
  position: relative;
  background: var(--bg2);
  border-bottom: 1px solid var(--border);
  overflow: hidden;
}
.cat-hero-bg, .tag-hero-bg, .about-top-bg, .privacy-top-bg {
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle, rgba(235,135,156,.14) 1px, transparent 1px);
  background-size: 18px 18px;
  pointer-events: none;
}
.cat-hero-content, .tag-hero-content, .about-top-content, .privacy-top-content, .entry-top-article > * {
  position: relative;
  z-index: 1;
  padding: 36px 24px;
  max-width: 900px;
  margin: 0 auto;
}
.entry-top-article { padding: 36px 24px; max-width: 900px; margin: 0 auto; }
.cat-h1, .tag-h1, .about-h1, .privacy-h1, .entry-h1 {
  font-family: var(--mono);
  font-size: clamp(20px, 4vw, 30px);
  font-weight: 700;
  color: var(--text);
  line-height: 1.35;
  margin-bottom: 10px;
}
.cat-desc, .tag-desc {
  font-size: 15px;
  color: var(--text-muted);
  margin-top: 8px;
}
.tag-hero-badge {
  display: inline-block;
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .1em;
  color: var(--pink);
  border: 1px solid var(--border-strong);
  border-radius: 4px;
  padding: 2px 8px;
  margin-bottom: 10px;
}

/* ── 内容布局：sidebar + main-col ── */
.content-section { padding: 32px 0 48px; }
.content-article {
  display: flex;
  gap: 28px;
  align-items: flex-start;
}
.sidebar {
  flex-shrink: 0;
  width: 220px;
  display: flex;
  flex-direction: column;
  gap: 20px;
  position: sticky;
  top: 48px;
}
.sidebar-left { order: -1; }
.main-col { flex: 1; min-width: 0; display: flex; flex-direction: column; gap: 32px; }

.sidebar-block {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  box-shadow: var(--shadow-sm);
}
.sidebar-title {
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 12px;
}
.sidebar-nav-list { display: flex; flex-direction: column; gap: 2px; }
.sidebar-nav-list li a {
  display: block;
  padding: 7px 10px;
  font-size: 13px;
  color: var(--text-muted);
  border-radius: var(--radius-sm);
  min-height: 36px;
  line-height: 1.4;
  display: flex; align-items: center;
  transition: background var(--transition), color var(--transition);
}
.sidebar-nav-list li a:hover { background: rgba(235,135,156,.1); color: var(--pink-light); }

.tag-cloud { display: flex; flex-wrap: wrap; gap: 6px; }
.tag-chip {
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 500;
  padding: 4px 10px;
  background: rgba(235,135,156,.1);
  border: 1px solid var(--border);
  border-radius: 20px;
  color: var(--text-muted);
  transition: background var(--transition), color var(--transition), border-color var(--transition);
  min-height: 28px;
  display: flex; align-items: center;
}
.tag-chip:hover, .tag-chip-active {
  background: rgba(235,135,156,.22);
  border-color: var(--pink);
  color: var(--pink-light);
}
.sibling-chips { display: flex; flex-wrap: wrap; gap: 6px; }
.sibling-chip {
  font-size: 12px;
  padding: 5px 10px;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  min-height: 32px;
  display: flex; align-items: center;
  transition: color var(--transition), border-color var(--transition);
}
.sibling-chip:hover { color: var(--pink); border-color: var(--pink); }

/* ── 正文内容块 ── */
.page-content-block {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px 32px;
  box-shadow: var(--shadow-md);
  font-size: 16px;
  line-height: 1.8;
  color: var(--text);
}
.page-content-block h2 {
  font-family: var(--mono);
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
  margin: 24px 0 10px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--border);
}
.page-content-block h3 {
  font-family: var(--mono);
  font-size: 15px;
  font-weight: 600;
  color: var(--pink-light);
  margin: 18px 0 8px;
}
.page-content-block p { margin-bottom: 14px; }
.page-content-block ul, .page-content-block ol { padding-left: 20px; margin-bottom: 14px; }
.page-content-block li { margin-bottom: 6px; }
.page-content-block a { color: var(--pink); border-bottom: 1px solid rgba(235,135,156,.3); }
.page-content-block a:hover { color: var(--pink-light); border-bottom-color: var(--pink-light); }
.page-content-block strong { color: var(--pink-light); font-weight: 600; }
.page-content-block time { font-family: var(--mono); font-size: 13px; color: var(--text-dim); }

/* ── 区块标题 ── */
.section-header { display: flex; flex-direction: column; align-items: flex-start; }
.section-title {
  font-family: var(--mono);
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
  margin-top: 4px;
}

/* ── 精选分类网格 ── */
.feat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 16px;
}
.feat-card {
  border-radius: var(--radius);
  background: var(--surface);
  border: 1px solid var(--border);
  border-bottom: 3px solid var(--pink);
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition), transform var(--transition);
  overflow: hidden;
}
.feat-card:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }
.feat-card-inner { padding: 18px 20px 16px; display: flex; flex-direction: column; gap: 10px; height: 100%; }
.feat-card-top { display: flex; flex-direction: column; gap: 6px; }
.feat-eyebrow {
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: .14em;
  color: var(--pink);
  text-transform: uppercase;
}
.feat-title {
  font-family: var(--mono);
  font-size: 14px;
  font-weight: 700;
  color: var(--text);
  line-height: 1.4;
}
.feat-title:hover { color: var(--pink-light); }
.feat-desc { font-size: 13px; color: var(--text-muted); line-height: 1.6; flex: 1; }
.feat-footer { display: flex; justify-content: space-between; align-items: center; margin-top: auto; }
.feat-count { font-family: var(--mono); font-size: 11px; color: var(--text-dim); }
.feat-link { font-family: var(--mono); font-size: 12px; color: var(--pink); }
.feat-link:hover { color: var(--pink-light); }

/* ── 最新条目网格 ── */
.latest-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 14px;
}
.latest-item {
  border-radius: var(--radius);
  background: var(--surface);
  border: 1px solid var(--border);
  border-bottom: 3px solid rgba(255,182,193,.4);
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition), transform var(--transition);
}
.latest-item:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }
.latest-item-inner { padding: 16px 18px; display: flex; flex-direction: column; gap: 8px; }
.latest-meta { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.entry-cat-tag {
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: .1em;
  color: var(--dark);
  background: var(--pink);
  border-radius: 3px;
  padding: 2px 7px;
  text-transform: uppercase;
}
.entry-cat-tag:hover { background: var(--pink-light); color: var(--dark); }
.latest-meta time {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--text-dim);
}
.latest-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.latest-title:hover { color: var(--pink-light); }
.latest-desc { font-size: 13px; color: var(--text-muted); line-height: 1.5; }

/* ── Entry 详情 ── */
.entry-meta-row {
  display: flex;
  gap: 12px;
  align-items: center;
  flex-wrap: wrap;
  margin-bottom: 12px;
}
.entry-date {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--text-dim);
}
.entry-date-mod::before { content: ''; }
.entry-cat-badge {
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 600;
  color: var(--dark);
  background: var(--pink);
  border-radius: 4px;
  padding: 3px 10px;
  min-height: 24px;
  display: inline-flex;
  align-items: center;
}
.entry-cat-badge:hover { background: var(--pink-light); color: var(--dark); }
.entry-hero-img-wrap {
  margin-top: 20px;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-md);
}
.entry-hero-img { width: 100%; height: auto; }
.entry-content { }
.entry-footer-nav {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}
.related-block { }

/* ── 条目列表 (dl) ── */
.entry-dl { display: flex; flex-direction: column; gap: 0; }
.entry-dt {
  background: var(--surface);
  border: 1px solid var(--border);
  border-bottom: 3px solid var(--pink);
  border-radius: var(--radius) var(--radius) 0 0;
  padding: 14px 18px 10px;
  margin-top: 14px;
  transition: box-shadow var(--transition);
}
.entry-dt:hover { box-shadow: var(--shadow-sm); }
.entry-dt > a {
  font-family: var(--mono);
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
  display: block;
  min-height: 24px;
}
.entry-dt > a:hover { color: var(--pink-light); }
.entry-dd {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-top: none;
  border-radius: 0 0 var(--radius) var(--radius);
  padding: 10px 18px 14px;
  display: flex;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  align-items: flex-end;
}
.entry-dd-desc { font-size: 13px; color: var(--text-muted); line-height: 1.5; flex: 1; }
.entry-dd-date time { font-family: var(--mono); font-size: 11px; color: var(--text-dim); }

/* ── About / Privacy ── */
.about-cta-row, .privacy-footer-nav { display: flex; gap: 12px; flex-wrap: wrap; }
.privacy-date {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--text-dim);
  margin-top: 8px;
}
.about-content, .privacy-content { }

/* ── 页脚 ── */
.site-footer {
  margin-top: auto;
  background: var(--bg2);
  border-top: 1px solid var(--border);
  padding: 40px 24px 28px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}
.footer-cta-block {
  background: linear-gradient(135deg, rgba(235,135,156,.12), rgba(255,182,193,.06));
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
  padding: 36px 40px;
  width: 100%;
  max-width: 680px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  margin-bottom: 8px;
}
.footer-cta-title {
  font-family: var(--mono);
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
}
.footer-cta-sub { font-size: 14px; color: var(--text-muted); }
.footer-copy {
  font-size: 13px;
  color: var(--text-dim);
}
.footer-copy a { color: var(--text-muted); }
.footer-copy a:hover { color: var(--pink); }
.footer-note {
  font-size: 12px;
  color: var(--text-dim);
  max-width: 520px;
  line-height: 1.5;
}

/* ── Reveal 动效 ── */
@media (prefers-reduced-motion: no-preference) {
  [data-reveal] {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 280ms ease, transform 280ms ease;
  }
  [data-reveal].is-visible {
    opacity: 1;
    transform: none;
  }
  [data-stagger="1"] { transition-delay: 60ms; }
  [data-stagger="2"] { transition-delay: 120ms; }
  [data-stagger="3"] { transition-delay: 180ms; }
  [data-stagger="4"] { transition-delay: 240ms; }
  [data-stagger="5"] { transition-delay: 300ms; }
}
@media (prefers-reduced-motion: reduce) {
  [data-reveal] { opacity: 1; transform: none; }
}

/* ── 空提示 ── */
.empty-tip { font-size: 14px; color: var(--text-dim); padding: 20px 0; }

/* ── 响应式 ── */
@media (max-width: 900px) {
  .content-article { flex-direction: column; }
  .sidebar { position: static; width: 100%; order: 1; }
  .main-col { order: 0; }
  .feat-grid { grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); }
  .latest-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 600px) {
  .hero-content { padding: 36px 16px; }
  .hero-h1 { font-size: 22px; }
  .page-content-block { padding: 20px 16px; }
  .footer-cta-block { padding: 24px 16px; }
  .latest-grid { grid-template-columns: 1fr; }
  .feat-grid { grid-template-columns: 1fr; }
  .entry-footer-nav, .about-cta-row, .privacy-footer-nav { flex-direction: column; }
  .btn { width: 100%; justify-content: center; }
  .nav-summary { padding: 12px 16px; }
  .entry-dt, .entry-dd { padding: 12px 14px; }
}
@media (max-width: 375px) {
  body { font-size: 16px; }
  .wrap { padding: 0 12px; }
  .anchor-link { font-size: 11px; padding: 10px 8px; }
}