/* kusu.io — 乌丝栏 · 南北朝帝系志 */
:root {
  --bg: #F3EDE1;
  --bg-sheet: #FAF6EE;
  --bg-sunken: #EAE2D2;
  --bg-hover: #EFE8D8;
  --ink: #1B1815;
  --ink-2: #4A433B;
  --ink-3: #7D7468;
  --ink-faint: #A69D8F;
  --rule: rgba(27, 24, 21, 0.14);
  --rule-mid: rgba(27, 24, 21, 0.24);
  --rule-strong: rgba(27, 24, 21, 0.46);
  --south: #AD3424;
  --south-soft: rgba(173, 52, 36, 0.085);
  --north: #2B4D59;
  --north-soft: rgba(43, 77, 89, 0.09);
  --gold: #8A6A32;
  --shadow: 0 10px 30px rgba(27, 24, 21, 0.05);
  --serif-cn: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "STSong", "SimSun", serif;
  --serif-en: "Cormorant Garamond", "Palatino Linotype", "Book Antiqua", Georgia, serif;
}

[data-theme="rubbing"] {
  --bg: #131210;
  --bg-sheet: #1A1815;
  --bg-sunken: #221F1B;
  --bg-hover: #25221D;
  --ink: #EAE2D3;
  --ink-2: #B7AE9E;
  --ink-3: #837A6B;
  --ink-faint: #575046;
  --rule: rgba(234, 226, 211, 0.11);
  --rule-mid: rgba(234, 226, 211, 0.22);
  --rule-strong: rgba(234, 226, 211, 0.42);
  --south: #D45442;
  --south-soft: rgba(212, 84, 66, 0.13);
  --north: #6797A8;
  --north-soft: rgba(103, 151, 168, 0.13);
  --gold: #C29B56;
  --shadow: 0 14px 36px rgba(0, 0, 0, 0.35);
}

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

html {
  scroll-behavior: smooth;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--serif-cn);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body {
  margin: 0;
  min-height: 100vh;
  background-color: var(--bg);
  background-image:
    radial-gradient(ellipse at 50% 0%, rgba(173, 52, 36, 0.035), transparent 65%),
    repeating-linear-gradient(90deg, transparent 0, transparent 79px, rgba(125, 116, 104, 0.025) 79px, rgba(125, 116, 104, 0.025) 80px);
  color: var(--ink);
  line-height: 1.75;
  transition: background-color 0.25s ease, color 0.25s ease;
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  display: block;
  max-width: 100%;
  height: auto;
}

.hidden {
  display: none !important;
}

/* Outer Folio Container */
.folio-shell {
  max-width: 1260px;
  margin: 0 auto;
  padding: 0 28px 72px;
}

/* Top Masthead (卷首眉栏) */
.masthead {
  position: sticky;
  top: 0;
  z-index: 40;
  background: color-mix(in srgb, var(--bg) 92%, transparent);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--rule-mid);
}

.masthead-inner {
  max-width: 1260px;
  margin: 0 auto;
  padding: 13px 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
}

.brand-seal {
  width: 26px;
  height: 26px;
  background: var(--south);
  color: #FAF6EE;
  display: inline-grid;
  place-items: center;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0;
  border: 1px solid rgba(250, 246, 238, 0.35);
  outline: 1px solid var(--south);
  flex-shrink: 0;
}

.brand-title {
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.brand-domain {
  font-family: var(--serif-en);
  font-size: 15px;
  font-style: italic;
  color: var(--ink-3);
  padding-left: 9px;
  border-left: 1px solid var(--rule-mid);
}

.mast-nav {
  display: flex;
  align-items: center;
  gap: 20px;
  font-size: 14px;
  color: var(--ink-2);
}

.mast-nav a {
  position: relative;
  padding: 4px 0;
  letter-spacing: 0.06em;
  transition: color 0.18s ease;
}

.mast-nav a:hover {
  color: var(--south);
}

.theme-btn {
  appearance: none;
  background: var(--bg-sheet);
  color: var(--ink-2);
  border: 1px solid var(--rule-mid);
  padding: 5px 11px;
  font-family: var(--serif-cn);
  font-size: 12.5px;
  letter-spacing: 0.06em;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: border-color 0.18s ease, color 0.18s ease, background 0.18s ease;
}

.theme-btn:hover {
  border-color: var(--ink-2);
  color: var(--ink);
}

.theme-dot {
  width: 7px;
  height: 7px;
  background: var(--south);
  display: inline-block;
}

/* Hero Folio (卷端引首) */
.hero-folio {
  margin-top: 28px;
  background: var(--bg-sheet);
  border-top: 3px double var(--rule-strong);
  border-bottom: 1px solid var(--rule-mid);
  border-left: 1px solid var(--rule);
  border-right: 1px solid var(--rule);
  padding: 40px 44px 36px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 40px;
  position: relative;
  box-shadow: var(--shadow);
}

.hero-folio::before,
.hero-folio::after {
  content: "";
  position: absolute;
  width: 12px;
  height: 12px;
  border-color: var(--rule-strong);
  pointer-events: none;
}

.hero-folio::before {
  bottom: 8px;
  left: 8px;
  border-bottom: 1px solid var(--rule-strong);
  border-left: 1px solid var(--rule-strong);
}

.hero-folio::after {
  bottom: 8px;
  right: 8px;
  border-bottom: 1px solid var(--rule-strong);
  border-right: 1px solid var(--rule-strong);
}

.hero-rubric {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--serif-en);
  font-size: 13px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--south);
  margin-bottom: 12px;
}

.hero-rubric::before {
  content: "";
  width: 22px;
  height: 1px;
  background: var(--south);
}

.hero-title {
  margin: 0;
  font-size: clamp(32px, 4.4vw, 50px);
  font-weight: 700;
  letter-spacing: 0.09em;
  line-height: 1.18;
}

.hero-lead {
  margin: 18px 0 0;
  max-width: 64ch;
  font-size: 15.5px;
  color: var(--ink-2);
  line-height: 1.9;
}

.hero-note {
  margin: 12px 0 0;
  font-size: 13px;
  color: var(--ink-3);
}

.hero-stats {
  margin-top: 26px;
  padding-top: 20px;
  border-top: 1px solid var(--rule);
  display: flex;
  flex-wrap: wrap;
  gap: 28px 36px;
}

.stat-item {
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.stat-num {
  font-family: var(--serif-en);
  font-size: 28px;
  font-weight: 600;
  line-height: 1;
  color: var(--ink);
}

.stat-label {
  font-size: 13px;
  color: var(--ink-3);
  letter-spacing: 0.05em;
}

/* Right Vertical Epigraph in Hero */
.hero-colophon {
  border-left: 1px solid var(--rule);
  padding-left: 32px;
  display: flex;
  flex-direction: row-reverse;
  align-items: flex-start;
  gap: 14px;
  user-select: none;
}

.colophon-verse {
  writing-mode: vertical-rl;
  font-size: 13.5px;
  letter-spacing: 0.26em;
  line-height: 2;
  color: var(--ink-3);
  max-height: 210px;
}

.colophon-stamp {
  writing-mode: vertical-rl;
  border: 1.5px solid var(--south);
  color: var(--south);
  padding: 6px 4px;
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: 0.2em;
  line-height: 1.25;
  margin-top: auto;
}

/* Parallel Chronology Map (南北朝并立纪年尺) */
.chrono-panel {
  margin-top: 22px;
  background: var(--bg-sheet);
  border: 1px solid var(--rule);
  padding: 22px 28px 24px;
}

.chrono-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 16px;
}

.chrono-title {
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--ink);
}

.chrono-sub {
  font-size: 12.5px;
  color: var(--ink-3);
}

.chrono-axis {
  position: relative;
  height: 20px;
  border-bottom: 1px solid var(--rule-mid);
  margin-bottom: 10px;
  font-family: var(--serif-en);
  font-size: 12px;
  color: var(--ink-3);
}

.chrono-tick {
  position: absolute;
  top: 0;
  transform: translateX(-50%);
  white-space: nowrap;
}

.chrono-tick::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: -5px;
  width: 1px;
  height: 4px;
  background: var(--rule-strong);
}

.chrono-tracks {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.chrono-row {
  display: grid;
  grid-template-columns: 58px minmax(0, 1fr);
  align-items: stretch;
  gap: 12px;
}

.chrono-tag {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
  display: flex;
  align-items: center;
  color: var(--ink-2);
}

.chrono-tag.is-south { color: var(--south); }
.chrono-tag.is-north { color: var(--north); }

.chrono-lane {
  position: relative;
  min-height: 34px;
  background: var(--bg-sunken);
  border: 1px solid var(--rule);
}

.chrono-lane.is-split {
  min-height: 66px;
}

.chrono-seg {
  position: absolute;
  top: 0;
  bottom: 0;
  padding: 0 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 5px;
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: 0.04em;
  border-right: 1px solid var(--rule-mid);
  overflow: hidden;
  white-space: nowrap;
  transition: background 0.18s ease, color 0.18s ease;
}

.chrono-seg.south-seg {
  background: var(--south-soft);
  color: var(--ink);
  border-top: 2px solid var(--south);
}

.chrono-seg.south-seg:hover {
  background: var(--south);
  color: #FAF6EE;
}

.chrono-seg.north-seg {
  background: var(--north-soft);
  color: var(--ink);
  border-top: 2px solid var(--north);
}

.chrono-seg.north-seg:hover {
  background: var(--north);
  color: #FAF6EE;
}

.chrono-seg.pre-seg {
  background: repeating-linear-gradient(-45deg, transparent, transparent 4px, var(--rule) 4px, var(--rule) 5px);
  color: var(--ink-3);
  font-size: 11.5px;
  font-weight: 400;
  pointer-events: none;
}

.chrono-seg.top-half {
  bottom: 50%;
  border-bottom: 1px solid var(--rule);
}

.chrono-seg.bot-half {
  top: 50%;
}

.chrono-seg small {
  font-family: var(--serif-en);
  font-size: 11.5px;
  font-weight: 400;
  opacity: 0.78;
}

/* Filter & Search Toolbar (检阅栏) */
.toolbar {
  margin-top: 24px;
  padding: 14px 20px;
  background: var(--bg-sheet);
  border: 1px solid var(--rule);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 14px;
}

.filter-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.filter-btn {
  appearance: none;
  background: transparent;
  border: 1px solid var(--rule);
  color: var(--ink-2);
  padding: 6px 13px;
  font-family: var(--serif-cn);
  font-size: 13px;
  letter-spacing: 0.05em;
  cursor: pointer;
  transition: all 0.16s ease;
}

.filter-btn:hover {
  border-color: var(--rule-strong);
  color: var(--ink);
}

.filter-btn.active {
  background: var(--ink);
  color: var(--bg-sheet);
  border-color: var(--ink);
}

.search-wrap {
  display: flex;
  align-items: center;
  gap: 12px;
  flex: 1 1 260px;
  justify-content: flex-end;
}

.result-count {
  font-size: 12.5px;
  color: var(--ink-3);
  white-space: nowrap;
}

.search-box {
  position: relative;
  width: min(290px, 100%);
}

.search-input {
  width: 100%;
  background: var(--bg);
  color: var(--ink);
  border: 1px solid var(--rule-mid);
  padding: 7px 34px 7px 12px;
  font-family: var(--serif-cn);
  font-size: 13.5px;
  outline: none;
  transition: border-color 0.18s ease;
}

.search-input::placeholder {
  color: var(--ink-3);
}

.search-input:focus {
  border-color: var(--south);
}

.search-kbd {
  position: absolute;
  right: 9px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--serif-en);
  font-size: 12px;
  color: var(--ink-3);
  border: 1px solid var(--rule);
  padding: 0 5px;
  line-height: 1.3;
  pointer-events: none;
}

/* Main Catalog Two-Column Spread */
.catalog-spread {
  margin-top: 26px;
  display: grid;
  grid-template-columns: 216px minmax(0, 1fr);
  gap: 32px;
  align-items: start;
}

/* Sticky Chapter Rail */
.chapter-rail {
  position: sticky;
  top: 72px;
  background: var(--bg-sheet);
  border: 1px solid var(--rule);
  border-top: 2px solid var(--rule-strong);
  padding: 16px 0;
}

.rail-header {
  padding: 0 18px 10px;
  font-size: 11.5px;
  letter-spacing: 0.18em;
  color: var(--ink-3);
  border-bottom: 1px solid var(--rule);
}

.rail-group {
  padding: 12px 0 4px;
}

.rail-group + .rail-group {
  border-top: 1px solid var(--rule);
}

.rail-macro {
  padding: 0 18px 6px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.14em;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.rail-macro.is-south { color: var(--south); }
.rail-macro.is-north { color: var(--north); }

.rail-link {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  padding: 6px 18px;
  font-size: 14px;
  color: var(--ink-2);
  border-left: 2px solid transparent;
  transition: all 0.15s ease;
}

.rail-link:hover {
  background: var(--bg-hover);
  color: var(--ink);
}

.rail-link.is-active {
  border-left-color: var(--south);
  background: var(--south-soft);
  color: var(--ink);
  font-weight: 600;
}

.rail-group.north-group .rail-link.is-active {
  border-left-color: var(--north);
  background: var(--north-soft);
}

.rail-years {
  font-family: var(--serif-en);
  font-size: 12.5px;
  color: var(--ink-3);
}

/* Macro Era Banner (南朝 / 北朝 卷标) */
.era-section + .era-section {
  margin-top: 48px;
}

.era-banner {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  padding-bottom: 12px;
  margin-bottom: 24px;
  border-bottom: 2px solid var(--rule-strong);
}

.era-banner.is-south { border-bottom-color: var(--south); }
.era-banner.is-north { border-bottom-color: var(--north); }

.era-heading {
  display: flex;
  align-items: baseline;
  gap: 14px;
}

.era-heading h2 {
  margin: 0;
  font-size: 26px;
  font-weight: 700;
  letter-spacing: 0.14em;
}

.era-en {
  font-family: var(--serif-en);
  font-size: 13px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink-3);
}

.era-summary {
  font-size: 13.5px;
  color: var(--ink-3);
}

/* Dynasty Folio Block */
.dynasty-folio {
  background: var(--bg-sheet);
  border: 1px solid var(--rule);
  margin-bottom: 28px;
  scroll-margin-top: 78px;
}

.dynasty-head {
  padding: 22px 26px 18px;
  border-bottom: 1px solid var(--rule);
  background: linear-gradient(180deg, var(--bg-sunken) 0%, var(--bg-sheet) 100%);
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 14px;
}

.dynasty-title-row {
  display: flex;
  align-items: baseline;
  gap: 12px;
  flex-wrap: wrap;
}

.dynasty-title {
  margin: 0;
  font-size: 24px;
  font-weight: 700;
  letter-spacing: 0.1em;
}

.dynasty-span {
  font-family: var(--serif-en);
  font-size: 16px;
  font-weight: 600;
  color: var(--south);
}

.era-north .dynasty-span {
  color: var(--north);
}

.dynasty-meta-pills {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12.5px;
  color: var(--ink-3);
}

.dynasty-meta-pills span {
  padding: 1px 8px;
  border: 1px solid var(--rule);
  background: var(--bg-sheet);
}

.dynasty-desc {
  margin: 8px 0 0;
  font-size: 14px;
  color: var(--ink-2);
}

/* Portrait Folio Grid (人物画传牌) */
.portrait-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(176px, 1fr));
  gap: 0;
}

.person-plate {
  display: flex;
  flex-direction: column;
  padding: 16px;
  border-right: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  background: var(--bg-sheet);
  position: relative;
  transition: background-color 0.2s ease;
}

.person-plate:hover {
  background: var(--bg-hover);
}

.plate-frame {
  position: relative;
  aspect-ratio: 2 / 3;
  overflow: hidden;
  border: 1px solid var(--rule-mid);
  background: var(--bg-sunken);
}

.plate-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: contrast(1.02) saturate(0.94);
  transition: transform 0.55s cubic-bezier(0.22, 1, 0.36, 1), filter 0.35s ease;
}

.person-plate:hover .plate-frame img {
  transform: scale(1.045);
  filter: contrast(1.05) saturate(1.02);
}

.plate-seq {
  position: absolute;
  top: 7px;
  left: 7px;
  background: color-mix(in srgb, var(--bg-sheet) 88%, transparent);
  backdrop-filter: blur(4px);
  border: 1px solid var(--rule-mid);
  padding: 1px 6px;
  font-family: var(--serif-en);
  font-size: 11.5px;
  font-weight: 600;
  color: var(--ink-2);
  line-height: 1.35;
}

.plate-badge {
  position: absolute;
  top: 7px;
  right: 7px;
  padding: 1px 6px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  line-height: 1.45;
  background: var(--south);
  color: #FAF6EE;
}

.plate-badge.is-appendix {
  background: var(--bg-sheet);
  color: var(--ink-2);
  border: 1px solid var(--rule-strong);
}

.era-north .plate-badge:not(.is-appendix) {
  background: var(--north);
}

.plate-caption {
  padding-top: 12px;
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.plate-name-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 6px;
}

.plate-name {
  font-size: 17px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--ink);
  transition: color 0.18s ease;
}

.person-plate:hover .plate-name {
  color: var(--south);
}

.era-north .person-plate:hover .plate-name {
  color: var(--north);
}

.plate-arrow {
  font-family: var(--serif-en);
  font-size: 14px;
  color: var(--ink-faint);
  transition: transform 0.2s ease, color 0.2s ease;
}

.person-plate:hover .plate-arrow {
  transform: translateX(3px);
  color: var(--ink);
}

.plate-meta {
  font-size: 12.5px;
  color: var(--ink-3);
  line-height: 1.45;
}

/* Appendix Sub-Ledger (追尊与续统存疑附传) */
.appendix-divider {
  padding: 10px 26px;
  background: var(--bg-sunken);
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--ink-2);
  display: flex;
  align-items: center;
  gap: 10px;
}

.appendix-divider::before {
  content: "附";
  display: inline-grid;
  place-items: center;
  width: 18px;
  height: 18px;
  font-size: 11px;
  border: 1px solid var(--rule-strong);
  color: var(--ink-2);
}

.empty-state {
  padding: 48px 24px;
  text-align: center;
  background: var(--bg-sheet);
  border: 1px solid var(--rule);
  color: var(--ink-3);
  font-size: 15px;
}

/* Colophon Notes & Footer (凡例与卷尾) */
.notes-box {
  margin-top: 40px;
  padding: 24px 28px;
  background: var(--bg-sheet);
  border: 1px solid var(--rule);
  border-left: 3px solid var(--south);
}

.notes-title {
  margin: 0 0 8px;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.12em;
}

.notes-box p {
  margin: 6px 0 0;
  font-size: 13.5px;
  color: var(--ink-2);
  line-height: 1.85;
}

.notes-box a {
  color: var(--south);
  border-bottom: 1px solid var(--rule-mid);
}

.site-footer {
  margin-top: 44px;
  padding-top: 20px;
  border-top: 1px solid var(--rule-mid);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 13px;
  color: var(--ink-3);
}

.site-footer a:hover {
  color: var(--south);
}

/* =========================================================
   Detail Page — 人物本纪 / 列传内页
   ========================================================= */
.crumb-bar {
  margin-top: 22px;
  padding: 10px 0 14px;
  border-bottom: 1px solid var(--rule);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  font-size: 13.5px;
  color: var(--ink-3);
}

.crumbs {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}

.crumbs a:hover {
  color: var(--south);
}

.crumb-sep {
  color: var(--ink-faint);
}

.crumb-current {
  color: var(--ink);
  font-weight: 600;
}

.bio-spread {
  margin-top: 26px;
  display: grid;
  grid-template-columns: 330px minmax(0, 1fr);
  gap: 40px;
  align-items: start;
}

.bio-left {
  position: sticky;
  top: 74px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.portrait-mat {
  background: var(--bg-sheet);
  border: 1px solid var(--rule-mid);
  padding: 14px;
  box-shadow: var(--shadow);
}

.portrait-inner {
  border: 1px solid var(--rule);
  overflow: hidden;
  background: var(--bg-sunken);
}

.portrait-inner img {
  width: 100%;
  aspect-ratio: 2 / 3;
  object-fit: cover;
}

.portrait-caption {
  margin-top: 10px;
  padding-top: 8px;
  border-top: 1px solid var(--rule);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 12px;
  color: var(--ink-3);
}

/* Same-Dynasty Roster Widget */
.roster-card {
  background: var(--bg-sheet);
  border: 1px solid var(--rule);
  border-top: 2px solid var(--rule-strong);
  padding: 14px 16px;
}

.roster-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  padding-bottom: 8px;
  margin-bottom: 10px;
  border-bottom: 1px solid var(--rule);
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: 0.1em;
}

.roster-head span {
  font-family: var(--serif-en);
  font-weight: 400;
  color: var(--ink-3);
}

.roster-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.roster-pill {
  padding: 4px 9px;
  font-size: 12.5px;
  border: 1px solid var(--rule);
  color: var(--ink-2);
  background: var(--bg);
  transition: all 0.15s ease;
}

.roster-pill:hover {
  border-color: var(--rule-strong);
  color: var(--ink);
}

.roster-pill.is-current {
  background: var(--south);
  border-color: var(--south);
  color: #FAF6EE;
  font-weight: 600;
}

.is-north-page .roster-pill.is-current {
  background: var(--north);
  border-color: var(--north);
}

.roster-pill.is-appx {
  border-style: dashed;
}

/* Right Chronicle Sheet */
.bio-sheet {
  background: var(--bg-sheet);
  border: 1px solid var(--rule);
  border-top: 3px double var(--rule-strong);
  padding: 36px 42px 40px;
  box-shadow: var(--shadow);
}

.bio-eyebrow-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  font-size: 12.5px;
  letter-spacing: 0.14em;
  color: var(--south);
}

.is-north-page .bio-eyebrow-row {
  color: var(--north);
}

.bio-folio-no {
  font-family: var(--serif-en);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--ink-3);
}

.bio-title-block {
  margin-top: 10px;
  padding-bottom: 22px;
  border-bottom: 1px solid var(--rule-mid);
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 16px;
}

.bio-name {
  margin: 0;
  font-size: clamp(34px, 4.5vw, 48px);
  font-weight: 700;
  letter-spacing: 0.1em;
  line-height: 1.15;
}

.bio-honorific {
  display: inline-block;
  padding: 2px 10px;
  border: 1px solid var(--south);
  color: var(--south);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.08em;
}

.is-north-page .bio-honorific {
  border-color: var(--north);
  color: var(--north);
}

/* 5-Cell Ruled Epigraphic Spec Ledger */
.spec-ledger {
  margin: 24px 0 32px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(135px, 1fr));
  border-top: 1px solid var(--rule-mid);
  border-left: 1px solid var(--rule-mid);
  background: var(--bg);
}

.spec-cell {
  padding: 12px 14px;
  border-right: 1px solid var(--rule-mid);
  border-bottom: 1px solid var(--rule-mid);
}

.spec-dt {
  font-size: 11.5px;
  letter-spacing: 0.12em;
  color: var(--ink-3);
  margin-bottom: 4px;
}

.spec-dd {
  margin: 0;
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
  line-height: 1.4;
}

.section-rubric {
  margin: 32px 0 16px;
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 17px;
  font-weight: 700;
  letter-spacing: 0.12em;
}

.section-rubric::before {
  content: "";
  width: 8px;
  height: 8px;
  transform: rotate(45deg);
  background: var(--south);
  flex-shrink: 0;
}

.is-north-page .section-rubric::before {
  background: var(--north);
}

.section-rubric::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--rule);
}

.bio-prose p {
  margin: 0 0 16px;
  font-size: 16px;
  line-height: 1.98;
  color: var(--ink-2);
  max-width: 66ch;
}

.bio-prose p:first-of-type::first-letter {
  font-size: 1.65em;
  font-weight: 700;
  color: var(--ink);
  padding-right: 3px;
}

/* Chronicle Timeline (纪年大事表) */
.chronicle-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--rule);
}

.chronicle-item {
  display: grid;
  grid-template-columns: 98px minmax(0, 1fr);
  gap: 18px;
  padding: 13px 0;
  border-bottom: 1px solid var(--rule);
  align-items: baseline;
}

.chronicle-year {
  font-family: var(--serif-cn);
  font-size: 14px;
  font-weight: 700;
  color: var(--south);
  position: relative;
  padding-left: 14px;
}

.is-north-page .chronicle-year {
  color: var(--north);
}

.chronicle-year::before {
  content: "◆";
  position: absolute;
  left: 0;
  top: 1px;
  font-size: 9px;
  opacity: 0.8;
}

.chronicle-text {
  font-size: 15px;
  color: var(--ink-2);
  line-height: 1.75;
}

.source-colophon {
  margin-top: 30px;
  padding: 14px 16px;
  background: var(--bg);
  border: 1px solid var(--rule);
  font-size: 12.5px;
  color: var(--ink-3);
  line-height: 1.75;
}

.source-colophon a {
  color: var(--south);
  border-bottom: 1px solid var(--rule-mid);
}

.is-north-page .source-colophon a {
  color: var(--north);
}

/* Prev / Next Folio Pager */
.folio-pager {
  margin-top: 28px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.pager-card {
  display: flex;
  flex-direction: column;
  gap: 3px;
  padding: 14px 18px;
  border: 1px solid var(--rule-mid);
  background: var(--bg);
  transition: border-color 0.18s ease, background 0.18s ease;
}

.pager-card:hover {
  border-color: var(--ink);
  background: var(--bg-hover);
}

.pager-card.is-next {
  text-align: right;
  align-items: flex-end;
}

.pager-dir {
  font-size: 11.5px;
  letter-spacing: 0.1em;
  color: var(--ink-3);
}

.pager-target {
  font-size: 16px;
  font-weight: 700;
  color: var(--ink);
}

.pager-sub {
  font-size: 12px;
  color: var(--ink-3);
}

/* Responsive Adjustments */
@media (max-width: 960px) {
  .hero-folio {
    grid-template-columns: 1fr;
    padding: 28px 24px;
  }
  .hero-colophon {
    display: none;
  }
  .chrono-panel {
    overflow-x: auto;
  }
  .chrono-inner {
    min-width: 680px;
  }
  .catalog-spread {
    grid-template-columns: 1fr;
    gap: 18px;
  }
  .chapter-rail {
    position: sticky;
    top: 53px;
    z-index: 30;
    padding: 8px 12px;
    display: flex;
    align-items: center;
    gap: 8px;
    overflow-x: auto;
    white-space: nowrap;
  }
  .rail-header, .rail-macro {
    display: none;
  }
  .rail-group {
    display: flex;
    padding: 0;
    gap: 6px;
    border: none !important;
  }
  .rail-link {
    padding: 5px 10px;
    border: 1px solid var(--rule);
    font-size: 13px;
  }
  .rail-years {
    display: none;
  }
  .bio-spread {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .bio-left {
    position: static;
    max-width: 400px;
    margin: 0 auto;
    width: 100%;
  }
  .bio-sheet {
    padding: 26px 22px 30px;
  }
}

@media (max-width: 600px) {
  .folio-shell {
    padding: 0 14px 52px;
  }
  .masthead-inner {
    padding: 11px 14px;
  }
  .brand-domain {
    display: none;
  }
  .mast-nav {
    gap: 12px;
    font-size: 13px;
  }
  .portrait-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .person-plate {
    padding: 11px;
  }
  .plate-name {
    font-size: 15.5px;
  }
  .chronicle-item {
    grid-template-columns: 1fr;
    gap: 4px;
  }
  .folio-pager {
    grid-template-columns: 1fr;
  }
  .pager-card.is-next {
    text-align: left;
    align-items: flex-start;
  }
}