/* 彭道富模型库
   配色来自 DESIGN.md：暖纸、墨字、朱批；颜色只做标记，不做分区。
   无阴影、无渐变、无圆角；边框 1px。 */

:root {
  /* 纸与墨（唯一颜色来源，改色只改这一段） */
  --paper: #f6f2e7;
  --paper-warm: #fffdf8;
  --paper-tint: #fcfaf3;
  --paper-deep: #efe9db;
  --surface: #fcfaf3;
  --hairline: #d2c9b7;
  --line: #b8ae9a;
  --rule: #b8ae9a;
  --rule-strong: #8a7f6b;
  --ink: #1c1917;
  --ink-2: #4a453e;
  --ink-3: #746d61;
  --ink-hover: #33312b;
  --canvas-dot: #dcd6c8;

  /* 朱批：全站唯一强调色 */
  --zhu: #8f2a19;
  --zhu-soft: #f2e7e2;

  /* 墨碑：全站唯一深色 */
  --stele: #1c1917;
  --on-stele: #f6f2e7;

  --green: #3f5d4b;
  --green-deep: #354e3f;
  --green-soft: #e8efe9;
  --amber: #8a5f28;
  --amber-soft: #f4ead8;
  --red: #8f2a19;
  --red-deep: #76220f;
  --red-soft: #f2e7e2;
  --blue: #485977;
  --blue-soft: #e8eaf0;
  --park: #6f685c;
  --brand: #506373;
  --ink-on-dark: #cfcabd;

  /* 九个问题域：只做分类标记 */
  --d-strategy: #3f5d4b;
  --d-value: #485977;
  --d-cycle: #8a5f28;
  --d-longtou: #a8321f;
  --d-tactics: #7a5c3e;
  --d-mind: #6d5f75;
  --d-risk: #3b3631;
  --d-theme: #5e6b3a;
  --d-outer: #6f685c;

  /* 站点既有别名：只做映射，不另设色值 */
  --ink-dim: var(--ink-2);
  --ink-muted: var(--park);
  --ink-ghost: var(--canvas-dot);
  --bg: var(--paper);
  --card: var(--surface);
  --accent: var(--zhu);
  --accent-soft: var(--zhu-soft);

  --font-serif: "Noto Serif SC", "Songti SC", "Source Han Serif SC", serif;
  --font-sans: "Source Sans 3", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, "SFMono-Regular", "SF Mono", Menlo, Consolas, monospace;

  --s1: 4px;
  --s2: 8px;
  --s3: 12px;
  --s4: 16px;
  --s5: 20px;
  --s6: 24px;
  --s7: 32px;
  --s8: 40px;
  --s9: 56px;
  --s10: 80px;
  --s11: 88px;

  --max: 1200px;
  --gutter: 32px;

  --fs-display: clamp(32px, 4vw, 46px);
  --fs-h1: 40px;
  --fs-h2: 26px;
  --fs-h3: 18px;
  --fs-body: 16px;
  --fs-small: 13px;
  --fs-mono: 12px;
  --fs-micro: 11px;

  --fw-display: 400;
  --fw-h1: 600;
  --fw-h2: 600;
  --fw-h3: 600;
  --fw-body: 400;
  --fw-medium: 500;
  --fw-mono: 500;
}

/* 夜读：手动切换，不跟随系统 */
:root[data-theme="night"] {
  --paper: #1a1917;
  --paper-warm: #211f1d;
  --paper-tint: #232120;
  --paper-deep: #232120;
  --surface: #211f1d;
  --hairline: #332f2b;
  --line: #4a453e;
  --rule: #4a453e;
  --rule-strong: #6b6355;
  --ink: #e8e2d5;
  --ink-2: #a9a294;
  --ink-3: #948c7e;
  --ink-hover: #f2ece0;
  --park: #948c7e;
  --canvas-dot: #3a352f;
  --zhu: #d65c45;
  --zhu-soft: #2e211e;
  --stele: #0f0e0d;
  --on-stele: #e8e2d5;
  --green-soft: #1f2a24;
  --amber-soft: #2a2419;
  --red-soft: #2e211e;
  --blue-soft: #1f232c;
  --card: #211f1d;
  color-scheme: dark;
}

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

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

body {
  margin: 0;
  min-height: 100dvh;
  overflow-x: clip;
  display: flex;
  flex-direction: column;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: var(--fs-body);
  line-height: 1.75;
  font-feature-settings: "kern" 1, "liga" 1;
  -webkit-font-smoothing: antialiased;
}

::selection {
  background: var(--accent);
  color: var(--card);
}

a {
  color: inherit;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

a:hover {
  color: var(--accent);
}

button,
input {
  font: inherit;
  color: inherit;
}

button {
  cursor: pointer;
}

img,
svg {
  max-width: 100%;
}

h1,
h2,
h3,
h4,
p,
figure,
blockquote,
ul,
ol {
  margin: 0;
}

h1,
h2,
h3,
h4 {
  font-family: var(--font-serif);
  font-weight: var(--fw-h2);
  line-height: 1.3;
  letter-spacing: 0.01em;
}

h1 {
  font-size: var(--fs-display);
  font-weight: var(--fw-display);
  letter-spacing: 0.01em;
  line-height: 1.25;
}

h2 {
  font-size: var(--fs-h2);
  font-weight: var(--fw-h2);
}

h3 {
  font-size: var(--fs-h3);
  font-weight: var(--fw-h3);
}

.mono {
  font-family: var(--font-mono);
  font-size: var(--fs-mono);
  font-weight: var(--fw-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.01em;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: fixed;
  top: -100px;
  left: 16px;
  z-index: 200;
  padding: 8px 12px;
  background: var(--ink);
  color: var(--card);
  text-decoration: none;
}

.skip-link:focus {
  top: 12px;
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* ---------- 头部 ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: var(--bg);
  border-bottom: 1px solid var(--rule);
}

.header-inner {
  max-width: var(--max);
  min-height: 72px;
  margin: 0 auto;
  padding: 0 var(--gutter);
  display: flex;
  align-items: center;
  gap: 32px;
}

.brand {
  flex: none;
  display: flex;
  align-items: baseline;
  gap: 6px;
  text-decoration: none;
  letter-spacing: -0.02em;
}

.brand-main {
  font-size: var(--fs-h3);
  font-weight: var(--fw-h3);
}

.brand-sub {
  font-size: var(--fs-small);
  color: var(--ink-muted);
}

.header-search {
  flex: 1;
  max-width: 560px;
  min-width: 0;
}

.search-trigger {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  height: 44px;
  padding: 0 16px;
  background: var(--card);
  border: 1px solid var(--rule);
  color: var(--ink-muted);
  text-align: left;
  transition: border-color 0.12s ease, color 0.12s ease;
}

.search-trigger:hover {
  border-color: var(--ink);
  color: var(--ink);
}

.search-trigger:focus-visible {
  border-color: var(--accent);
  color: var(--ink);
}

.search-placeholder {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  font-size: var(--fs-small);
  text-overflow: ellipsis;
  white-space: nowrap;
}

.search-kbd {
  flex: none;
  padding: 2px 8px;
  background: var(--bg);
  border: 1px solid var(--rule);
  color: var(--ink-muted);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 24px;
  margin-left: auto;
  min-width: 0;
  overflow-x: auto;
  scrollbar-width: none;
}

.site-nav::-webkit-scrollbar {
  display: none;
}

.nav-link {
  flex: none;
  font-size: var(--fs-small);
  color: var(--ink-dim);
  text-decoration: none;
  padding: 4px 0;
  border-bottom: 1px solid transparent;
}

.nav-link:hover,
.nav-link.is-active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

.menu-toggle {
  display: none;
  flex: none;
  width: 44px;
  height: 44px;
  margin-left: auto;
  padding: 0;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  background: transparent;
  border: 0;
}

.menu-toggle > span {
  display: block;
  width: 18px;
  height: 1.5px;
  background: var(--ink);
  transition: transform 0.12s ease, opacity 0.12s ease;
}

.menu-toggle[aria-expanded="true"] > span:nth-child(1) {
  transform: translateY(5.5px) rotate(45deg);
}

.menu-toggle[aria-expanded="true"] > span:nth-child(2) {
  opacity: 0;
}

.menu-toggle[aria-expanded="true"] > span:nth-child(3) {
  transform: translateY(-5.5px) rotate(-45deg);
}

.mobile-menu {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  z-index: 39;
  padding: 12px var(--gutter);
  background: var(--bg);
  border-bottom: 1px solid var(--rule);
}

.mobile-menu:not([hidden]) {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.mobile-menu .nav-link {
  padding: 8px 0;
  border-bottom: 1px solid var(--rule);
  font-size: var(--fs-body);
}

.mobile-menu .nav-link:last-child {
  border-bottom: 0;
}

/* ---------- 页面 ---------- */

.page {
  width: 100%;
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 var(--gutter);
  flex: 1 0 auto;
}

.hero {
  padding: 88px 0 56px;
}

.hero h1 {
  max-width: 14em;
}

/* 只在窄屏生效的断行，避免“可以”被拆成两行 */
.hero-br {
  display: none;
}

.lede {
  margin-top: 18px;
  max-width: 48em;
  font-size: var(--fs-h3);
  line-height: 1.65;
  color: var(--ink-dim);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.btn {
  display: inline-block;
  border: 1px solid var(--ink);
  padding: 9px 16px;
  font-size: var(--fs-small);
  line-height: 1.4;
  text-decoration: none;
  color: var(--ink);
  background: transparent;
}

.btn:hover {
  background: var(--ink);
  color: var(--card);
}

.btn-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--surface);
}

.btn-primary:hover {
  background: var(--green-deep);
  border-color: var(--green-deep);
  color: var(--surface);
}

/* ---------- 统计 ---------- */

.stat-strip {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--rule);
}

.stat-item {
  padding: 20px 16px;
  border-left: 1px solid var(--rule);
}

.stat-item:first-child {
  border-left: 0;
  padding-left: 0;
}

.stat-item strong {
  display: block;
  font-family: var(--font-mono);
  font-size: 22px;
  font-weight: var(--fw-medium);
  line-height: 1.1;
  letter-spacing: -0.01em;
  color: var(--ink);
  white-space: nowrap;
}

.stat-item span {
  display: block;
  margin-top: 8px;
  font-family: var(--font-sans);
  font-size: 12px;
  color: var(--ink-3);
}

.stat-strip--inline {
  margin: 0;
}

/* ---------- 区块 ---------- */

.section {
  padding: 56px 0;
  border-top: 1px solid var(--rule);
}

.section:first-of-type {
  border-top: 0;
}

/* 分区之间只用结构线与留白，不再使用满出血色带。 */

.section-note {
  font-size: var(--fs-small);
  color: var(--ink-muted);
}

.section-head {
  display: grid;
  grid-template-columns: 56px minmax(0, 1fr) auto;
  align-items: baseline;
  gap: 16px;
  margin-bottom: 28px;
}

.section-head h2 {
  min-width: 0;
}

.section-index {
  font-size: var(--fs-micro);
  color: var(--accent);
}

.section-aside {
  font-size: var(--fs-micro);
  color: var(--ink-muted);
  text-align: right;
}

/* ---------- 首页成员 ---------- */

.feature-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 16px;
}

.feature-card {
  grid-column: span 3;
  display: flex;
  flex-direction: column;
  min-height: 260px;
  padding: 20px;
  background: var(--card);
  border: 1px solid var(--rule);
  text-decoration: none;
}

.feature-main {
  grid-column: span 6;
  min-height: 300px;
}

.feature-card:hover {
  border-color: var(--accent);
}

.section-more {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 24px;
  padding: 18px 20px;
  border: 1px solid var(--rule);
  font-family: var(--font-mono);
  font-size: var(--fs-mono);
  letter-spacing: 0.04em;
  text-decoration: none;
  color: var(--ink);
}

.section-more:hover {
  border-color: var(--ink);
}

.feature-card:hover h3 {
  color: var(--accent);
}

.feature-meta {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  font-size: var(--fs-micro);
  color: var(--ink-muted);
}

.feature-card h3 {
  margin-top: 28px;
  font-size: var(--fs-h2);
  line-height: 1.15;
}

.feature-main h3 {
  font-size: var(--fs-h1);
}

.feature-card p {
  margin-top: 12px;
  font-size: var(--fs-small);
  color: var(--ink-dim);
}

.feature-card .phase-strip {
  margin-top: auto;
  padding-top: 24px;
}

.feature-foot {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-top: 16px;
  padding-top: 12px;
  border-top: 1px solid var(--rule);
  font-size: var(--fs-micro);
  color: var(--ink-muted);
}

.disc-catalog {
  border-top: 1px solid var(--rule);
}

.disc-row {
  display: grid;
  grid-template-columns: 240px minmax(0, 1fr) 80px;
  align-items: start;
  gap: 32px;
  padding: 32px 0;
  border-bottom: 1px solid var(--rule);
}

.disc-row__meta {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.disc-row__ord {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 6px;
}

.disc-row__ord .mono {
  color: var(--ink-muted);
}

.disc-row__dot {
  display: inline-block;
  width: 10px;
  height: 10px;
  background: var(--disc);
}

.disc-row__name {
  font-size: var(--fs-h2);
  font-weight: var(--fw-h2);
  line-height: 1.3;
}

.disc-row__name a {
  text-decoration: none;
}

.disc-row__name a:hover {
  color: var(--accent);
}

.disc-row__en {
  margin-top: 4px;
  color: var(--ink-muted);
  letter-spacing: 0.06em;
}

.disc-row__desc {
  margin-top: 12px;
  font-size: var(--fs-small);
  line-height: 1.55;
  color: var(--ink-dim);
}

.disc-row__list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0 24px;
  min-width: 0;
  margin: 0;
  padding: 0;
  list-style: none;
}

.disc-row__item {
  min-width: 0;
  border-bottom: 1px dotted var(--rule-strong);
}

.disc-row__link {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 5px 0;
  text-decoration: none;
}

.disc-row__link:hover {
  color: var(--accent);
}

.disc-row__model-name {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  font-size: var(--fs-small);
  text-overflow: ellipsis;
  white-space: nowrap;
}

.disc-row__type {
  flex: none;
  font-size: var(--fs-micro);
  color: var(--ink-muted);
}

.disc-row__more .disc-row__link {
  color: var(--ink-muted);
}

.disc-row__count {
  font-size: var(--fs-h1);
  font-weight: var(--fw-display);
  line-height: 1;
  letter-spacing: -0.04em;
  text-align: right;
  text-decoration: none;
}

.disc-row__count span {
  display: block;
  margin-top: 8px;
  font-size: var(--fs-micro);
  font-weight: var(--fw-mono);
  letter-spacing: 0;
  color: var(--ink-muted);
}

.scene-sec {
  padding-top: 56px;
  padding-bottom: 56px;
  color: var(--ink);
}

.scene-kicker {
  margin-bottom: 20px;
  color: var(--green-deep);
  letter-spacing: 0.06em;
}

.scene-title {
  margin-bottom: 24px;
  font-size: var(--fs-h1);
  font-weight: var(--fw-h1);
  line-height: 1.15;
  letter-spacing: -0.01em;
}

.scene-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--line);
}

.scene-card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-width: 0;
  padding: 18px 20px 20px;
  border-top: 2px solid var(--scen, var(--amber));
  background: var(--paper-warm);
  color: var(--ink);
  text-decoration: none;
  transition: background 0.12s ease;
}

.scene-card:hover {
  background: var(--paper-tint);
}

.scene-card__row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
}

.scene-card__icon {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: var(--ink-2);
}

.scene-card__icon::before {
  content: "";
  width: 6px;
  height: 6px;
  flex: none;
  background: var(--scen, var(--amber));
}

.scene-card__count {
  color: var(--ink-muted);
}

.scene-card__name {
  font-size: var(--fs-body);
  font-weight: var(--fw-medium);
  line-height: 1.4;
}

.scene-card__tag {
  overflow: hidden;
  font-size: var(--fs-small);
  line-height: 1.5;
  color: var(--ink-muted);
  text-overflow: ellipsis;
  white-space: nowrap;
}

.book-list {
  border-bottom: 1px solid var(--rule);
}

.book-row {
  display: grid;
  grid-template-columns: 240px minmax(0, 1fr) 110px 60px;
  align-items: baseline;
  gap: 20px;
  padding: 16px 0;
  border-top: 1px solid var(--rule);
  text-decoration: none;
}

.book-row:hover .book-title {
  color: var(--accent);
}

.book-title {
  font-size: var(--fs-h3);
}

.book-sub {
  font-size: var(--fs-small);
  color: var(--ink-muted);
}

.book-status {
  font-size: var(--fs-micro);
  color: var(--ink-dim);
}

.book-count {
  font-size: var(--fs-micro);
  color: var(--ink-muted);
  text-align: right;
}

/* ---------- 索引页 ---------- */

.index-hint {
  margin-top: 12px;
  font-family: var(--font-sans);
  font-size: var(--fs-small);
  color: var(--ink-3);
}

.rail-layout {
  display: grid;
  grid-template-columns: 200px minmax(0, 1fr);
  gap: 48px;
  margin-top: 40px;
  padding-bottom: 56px;
}

.rail {
  position: sticky;
  top: 88px;
  align-self: start;
}

.rail-head {
  padding-bottom: 12px;
  border-bottom: 1px solid var(--ink);
  font-size: var(--fs-micro);
  letter-spacing: 0.08em;
  color: var(--ink-3);
}

.rail-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 0;
  border-bottom: 1px solid var(--rule);
  font-size: var(--fs-small);
  color: var(--ink-2);
  text-decoration: none;
}

.rail-item:hover {
  color: var(--ink);
}

.rail-item[aria-current="true"] {
  color: var(--ink);
}

.rail-item[aria-current="true"] .rail-name {
  text-decoration: underline;
  text-decoration-color: var(--zhu);
  text-decoration-thickness: 1px;
  text-underline-offset: 4px;
}

.rail-name {
  flex: 1;
  min-width: 0;
}

.rail-count {
  font-size: var(--fs-micro);
  color: var(--ink-3);
}

.rail-controls {
  display: flex;
  gap: 8px;
  padding-bottom: 16px;
}

.rail-control {
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  letter-spacing: 0.04em;
  color: var(--ink-2);
  background: transparent;
  border: 1px solid var(--rule);
  padding: 6px 10px;
  cursor: pointer;
}

.rail-control:hover {
  color: var(--ink);
  border-color: var(--ink);
}

.collapse-stack {
  margin-top: 40px;
  padding-bottom: 56px;
}

.collapse-section {
  border-bottom: 1px solid var(--rule);
  scroll-margin-top: 88px;
}

.group-head,
.collapse-summary {
  list-style: none;
  cursor: pointer;
}

.group-head::-webkit-details-marker,
.collapse-summary::-webkit-details-marker {
  display: none;
}

.group-head {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 0;
  border-bottom: 1px solid var(--rule);
}

.collapse-section[open] > .group-head,
.collapse-section[open] > .collapse-summary {
  border-bottom-color: var(--ink);
}

.group-head h2 {
  font-size: var(--fs-h3);
}

.group-count {
  font-size: var(--fs-micro);
  color: var(--ink-muted);
}

.group-head a {
  margin-left: auto;
  font-size: var(--fs-micro);
  color: var(--ink-muted);
}

.group-head a:hover {
  color: var(--ink);
}

.index-dot {
  width: 8px;
  height: 8px;
  flex: none;
  background: var(--disc, var(--accent));
}

.collapse-toggle {
  flex: none;
  width: 14px;
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  color: var(--ink-3);
}

.collapse-toggle::before {
  content: "＋";
}

.collapse-section[open] .collapse-toggle::before {
  content: "－";
}

.collapse-section--section > .collapse-summary {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 16px 0;
  border-bottom: 1px solid var(--rule);
}

.collapse-section--section .section-head {
  flex: 1;
  margin-bottom: 0;
}

.collapse-section--section > .collapse-body {
  padding-top: 28px;
}

.toc-tools .rail-controls {
  padding-bottom: 12px;
}

@media (max-width: 900px) {
  .rail-layout {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .rail {
    top: 64px;
    z-index: 20;
    display: flex;
    gap: 6px;
    overflow-x: auto;
    padding: 8px 0;
    background: var(--paper);
    border-bottom: 1px solid var(--rule);
  }

  .rail-head {
    display: none;
  }

  .rail-item {
    flex: none;
    gap: 6px;
    padding: 6px 10px;
    border: 1px solid var(--rule);
    white-space: nowrap;
  }

  .rail-count {
    margin-left: 2px;
  }

  .collapse-section {
    scroll-margin-top: 128px;
  }

  .collapse-stack {
    margin-top: 24px;
  }
}

.card-list {
  border-bottom: 1px solid var(--rule);
}

.card-row {
  display: grid;
  grid-template-columns: 220px 150px minmax(0, 1fr) 74px;
  align-items: baseline;
  gap: 16px;
  padding: 12px 0;
  border-top: 1px solid var(--rule);
  text-decoration: none;
}

.card-list .card-row:first-child {
  border-top: 0;
}

.card-row:hover .card-row-main strong {
  color: var(--accent);
}

.card-row-main {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  min-width: 0;
  font-size: var(--fs-body);
}

.card-row-main strong {
  font-weight: var(--fw-medium);
}

.card-row-type {
  font-size: var(--fs-micro);
  color: var(--ink-muted);
}

.card-row-summary {
  font-size: var(--fs-small);
  color: var(--ink-dim);
  overflow-wrap: anywhere;
}

.card-row-meta {
  font-size: var(--fs-micro);
  color: var(--ink-muted);
  text-align: right;
}

/* ---------- 战例 ---------- */

.case-list {
  border-bottom: 1px solid var(--rule);
}

.case-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 110px 190px 150px 56px;
  align-items: baseline;
  gap: 16px;
  padding: 12px 0;
  border-top: 1px solid var(--rule);
  text-decoration: none;
}

.case-list .case-row:first-child {
  border-top: 0;
}

.case-row:hover .case-row-main strong {
  color: var(--accent);
}

.case-row-main {
  min-width: 0;
  font-size: var(--fs-body);
}

.case-row-main strong {
  font-weight: var(--fw-medium);
}

.case-row-stock {
  font-size: var(--fs-small);
  color: var(--ink-dim);
}

.case-row-date {
  font-size: var(--fs-micro);
  color: var(--ink-muted);
  font-variant-numeric: tabular-nums;
}

.case-row-source {
  font-size: var(--fs-micro);
  color: var(--ink-muted);
}

.case-row-meta {
  font-size: var(--fs-micro);
  color: var(--ink-muted);
  text-align: right;
}

.case-source {
  margin-top: 12px;
  font-size: var(--fs-micro);
  color: var(--ink-muted);
}

.case-narrative p {
  max-width: 62ch;
}

/* ---------- 全书目录 ---------- */

.toc-note {
  max-width: 68ch;
  margin: 0 0 18px;
  font-size: var(--fs-small);
  color: var(--ink-muted);
}

.toc-jump {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  padding: 14px 0 18px;
  border-top: 1px solid var(--rule);
}

.toc-jump-link {
  font-size: var(--fs-micro);
  color: var(--ink-dim);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

.toc-jump-link:hover {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

.toc {
  border-bottom: 1px solid var(--rule);
}

.toc-chapter {
  border-top: 1px solid var(--ink);
  scroll-margin-top: 88px;
}

.toc-chapter summary {
  display: grid;
  grid-template-columns: 18px minmax(0, 1fr) auto;
  align-items: baseline;
  gap: 14px;
  padding: 14px 0;
  cursor: pointer;
  list-style: none;
}

.toc-chapter summary::-webkit-details-marker {
  display: none;
}

.toc-chapter summary::before {
  content: "+";
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  color: var(--ink-muted);
}

.toc-chapter[open] summary::before {
  content: "−";
}

.toc-chapter:hover summary::before,
.toc-chapter:hover .toc-chapter-title {
  color: var(--accent);
}

.toc-chapter-title {
  font-size: var(--fs-body);
  font-weight: var(--fw-medium);
  overflow-wrap: anywhere;
}

.toc-chapter-meta {
  font-size: var(--fs-micro);
  color: var(--ink-muted);
  text-align: right;
}

.toc-rows {
  border-top: 1px solid var(--rule);
}

.toc-row {
  display: grid;
  grid-template-columns: 74px minmax(0, 1fr) 92px;
  grid-template-areas:
    "page title chars"
    ". refs refs";
  align-items: baseline;
  gap: 4px 14px;
  padding: 10px 0 12px;
  border-bottom: 1px solid var(--rule);
  scroll-margin-top: 88px;
}

.toc-page {
  grid-area: page;
}

.toc-title {
  grid-area: title;
}

.toc-chars {
  grid-area: chars;
}

.toc-refs {
  grid-area: refs;
}

.toc-row:last-child {
  border-bottom: 0;
}

.toc-row:target {
  border-left: 2px solid var(--accent);
  margin-left: -12px;
  padding-left: 10px;
}

.toc-level-3 .toc-title {
  padding-left: 18px;
}

.toc-own .toc-title {
  font-weight: var(--fw-medium);
}

.toc-page {
  font-size: var(--fs-micro);
  color: var(--ink-muted);
  font-variant-numeric: tabular-nums;
}

.toc-title {
  font-size: var(--fs-small);
  color: var(--ink);
  overflow-wrap: anywhere;
}

.toc-chars {
  font-size: var(--fs-micro);
  color: var(--ink-muted);
  text-align: right;
  font-variant-numeric: tabular-nums;
}

.toc-refs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 4px 6px;
  padding-top: 2px;
}

.toc-chip {
  padding: 1px 7px;
  font-size: var(--fs-micro);
}

.toc-chip-case {
  border-style: dashed;
}

.toc-none {
  font-size: var(--fs-micro);
  color: var(--ink-muted);
}

.toc-mark {
  margin-left: 8px;
  padding: 0 4px;
  border: 1px solid var(--rule-strong);
  font-size: var(--fs-micro);
  color: var(--ink-muted);
}

.evidence-list {
  border-bottom: 1px solid var(--rule);
}

.evidence-row {
  display: grid;
  grid-template-columns: 150px minmax(0, 1fr) minmax(0, 1.1fr);
  gap: 16px;
  align-items: baseline;
  padding: 12px 0;
  border-top: 1px solid var(--rule);
}

.evidence-list .evidence-row:first-child {
  border-top: 0;
}

.evidence-card {
  font-size: var(--fs-body);
  color: var(--ink);
  text-decoration: none;
}

.evidence-card:hover {
  color: var(--accent);
}

.evidence-cases {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.evidence-note {
  font-size: var(--fs-micro);
  color: var(--ink-muted);
  overflow-wrap: anywhere;
}

/* ---------- 通用页头 ---------- */

.page-head {
  padding: 48px 0 32px;
  border-bottom: 1px solid var(--ink);
}

.page-head h1 {
  font-size: var(--fs-h1);
}

.page-head .lede {
  font-size: var(--fs-h3);
}

.page-head--disc {
  border-top: 3px solid var(--disc, var(--accent));
  margin-top: 32px;
}

.page-head--scen {
  border-top: 3px solid var(--scen, var(--accent));
  margin-top: 32px;
}

.page-head--scen .disc-kicker {
  display: flex;
  align-items: center;
  gap: 8px;
}

.page-head--scen .disc-kicker::before {
  content: "";
  width: 8px;
  height: 8px;
  flex: none;
  background: var(--scen, var(--accent));
}

.disc-kicker {
  margin-bottom: 12px;
  font-size: var(--fs-micro);
  color: var(--ink-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.page-stats {
  margin-top: 16px;
  font-size: var(--fs-micro);
  color: var(--ink-muted);
}

.source-note {
  max-width: 60em;
  margin-top: 16px;
  font-size: var(--fs-small);
  color: var(--ink-muted);
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 20px 0;
  font-size: var(--fs-micro);
  color: var(--ink-muted);
}

.breadcrumb a {
  color: var(--ink-dim);
  text-decoration: none;
}

.breadcrumb a:hover {
  color: var(--accent);
}

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

/* ---------- 卡片详情 ---------- */

.card-head {
  padding: 24px 0 32px;
  border-bottom: 1px solid var(--ink);
}

.meta-line {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: 16px;
}

.meta-item {
  font-size: var(--fs-micro);
  color: var(--ink-muted);
}

.badge {
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--rule-strong);
  padding: 1px 6px;
  font-size: var(--fs-micro);
  line-height: 1.6;
  color: var(--ink-dim);
  white-space: nowrap;
}

.badge-full {
  background: var(--paper);
  border-color: var(--green-deep);
  color: var(--green-deep);
}

:root[data-theme="night"] .badge-full {
  background: transparent;
  border-color: #a8c7b6;
  color: #a8c7b6;
}

.badge-stub {
  border-style: dashed;
  color: var(--ink-muted);
}

.badge-type {
  border-color: var(--ink);
  color: var(--ink);
}

.card-head h1 {
  margin-top: 4px;
}

.card-head .lede {
  margin-top: 16px;
  font-size: var(--fs-h3);
}

.card-submeta {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 20px;
  font-size: var(--fs-micro);
  color: var(--ink-muted);
}

.card-submeta a {
  color: var(--ink-dim);
}

/* ---------- 相位 ---------- */

.phase-strip {
  max-width: 720px;
}

.phase-strip.large {
  max-width: 100%;
  margin-top: 24px;
}

.phase-track {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 0;
  height: 5px;
  border: 1px solid var(--ink);
  background: var(--card);
}

.phase-seg {
  border-left: 1px solid var(--ink);
}

.phase-seg:first-child {
  border-left: 0;
}

.phase-seg.is-on {
  background: var(--ink);
}

.phase-track.is-all .phase-seg {
  background: var(--accent);
  border-color: var(--accent);
}

.phase-axis {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  margin-top: 6px;
  font-size: var(--fs-micro);
  color: var(--ink-muted);
  text-align: center;
}

.phase-caption {
  margin-top: 8px;
  font-size: var(--fs-micro);
  color: var(--ink-muted);
}

.phase-strip.compact .phase-track {
  height: 4px;
}

.phase-strip.compact .phase-axis {
  font-size: var(--fs-micro);
}

.phase-strip.compact .phase-caption {
  display: none;
}

.phase-notes {
  max-width: 860px;
  margin-top: 24px;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--rule);
}

.phase-notes li {
  display: grid;
  grid-template-columns: 96px minmax(0, 1fr);
  gap: 16px;
  padding: 12px 0;
  border-bottom: 1px solid var(--rule);
  font-size: var(--fs-small);
  color: var(--ink-dim);
}

.phase-name {
  color: var(--accent);
  text-decoration: none;
}

/* ---------- 卡片正文 ---------- */

.field-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  column-gap: 40px;
  border-top: 1px solid var(--ink);
}

.field {
  padding: 20px 0;
  border-bottom: 1px solid var(--rule);
}

.field-grid--wide .field {
  min-height: 80px;
}

.field-label {
  margin-bottom: 6px;
  font-size: var(--fs-micro);
  color: var(--ink-muted);
  letter-spacing: 0.08em;
}

.field p {
  color: var(--ink);
}

.notice {
  margin-bottom: 20px;
  padding: 16px;
  background: var(--card);
  border-left: 3px solid var(--accent);
  font-size: var(--fs-small);
}

.notice strong {
  display: block;
  margin-bottom: 4px;
  font-weight: var(--fw-h3);
}

.notice p {
  color: var(--ink-dim);
}

.notice-stub {
  border-left: 1px dashed var(--ink-muted);
}

.chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.chip {
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  border: 1px solid var(--rule-strong);
  padding: 3px 10px;
  font-size: var(--fs-small);
  color: var(--ink-dim);
  text-decoration: none;
}

.chip:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.chip--scen {
  border-left: 3px solid var(--scen, var(--amber));
}

.criteria-list {
  border-top: 1px solid var(--ink);
}

.criteria-row {
  display: grid;
  grid-template-columns: 180px minmax(0, 1fr) 40px;
  gap: 16px;
  padding: 12px 0;
  border-bottom: 1px solid var(--rule);
  font-size: var(--fs-small);
}

.criteria-name {
  font-weight: var(--fw-medium);
}

/* ---------- 关联 ---------- */

.rel-groups {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0 40px;
}

.rel-group {
  padding: 16px 0;
  border-top: 1px solid var(--ink);
  align-self: start;
}

.rel-group h3 {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: var(--fs-small);
  font-weight: var(--fw-medium);
}

.rel-count {
  margin-left: auto;
  font-size: var(--fs-micro);
  color: var(--ink-muted);
}

.rel-group ul {
  margin: 8px 0 0;
  padding: 0;
  list-style: none;
}

.rel-group li {
  padding: 10px 0;
  border-bottom: 1px solid var(--rule);
}

.rel-group li a {
  font-weight: var(--fw-medium);
  text-decoration: none;
}

.rel-group li a:hover {
  color: var(--accent);
}

.rel-note {
  display: block;
  margin-top: 2px;
  font-size: var(--fs-small);
  color: var(--ink-muted);
}

.rel-swatch {
  flex: none;
  overflow: visible;
}

.rel-swatch line,
.rel-swatch path {
  fill: none;
  stroke: var(--ink-dim);
  stroke-width: 1.2;
}

.rel-swatch.rel-依据 line,
.rel-swatch.rel-依据 path {
  stroke: var(--ink);
}

.rel-swatch.rel-演生 line {
  stroke-dasharray: 6 4;
}

.rel-swatch.rel-前提 line {
  stroke-dasharray: 1 5;
  stroke-linecap: round;
}

.rel-swatch.rel-反例 line,
.rel-swatch.rel-反例 path {
  stroke: var(--red-deep);
}

.rel-swatch.rel-跨域 path {
  stroke: var(--brand);
}

/* ---------- 引文 ---------- */

.quotes {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px 40px;
}

.quote {
  min-width: 0;
  padding-top: 12px;
  border-top: 1px solid var(--ink);
}

.quote blockquote {
  font-size: var(--fs-h3);
  line-height: 1.7;
  letter-spacing: -0.005em;
}

.quote figcaption {
  margin-top: 12px;
  font-size: var(--fs-micro);
  color: var(--ink-muted);
}

/* ---------- 空态 ---------- */

.empty-inline {
  padding: 12px 0;
  font-size: var(--fs-small);
  color: var(--ink-muted);
}

.empty-block {
  max-width: 720px;
  padding: 32px;
  background: var(--card);
  border: 1px dashed var(--rule-strong);
}

.empty-block strong {
  display: block;
  margin-bottom: 8px;
  font-size: var(--fs-h3);
  font-weight: var(--fw-medium);
}

.empty-block p {
  font-size: var(--fs-small);
  color: var(--ink-dim);
}

.empty-large {
  text-align: left;
}

.empty-large strong {
  font-size: var(--fs-display);
  font-weight: var(--fw-body);
  line-height: 1;
  color: var(--ink-ghost);
}

.text-link {
  display: inline-block;
  margin-top: 12px;
  font-size: var(--fs-small);
  color: var(--accent);
}

.link-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
  font-size: var(--fs-small);
}

.link-grid a {
  color: var(--ink-dim);
}

/* ---------- 图谱 ---------- */

.page--graph {
  max-width: none;
  padding: 0;
  flex: 1 1 auto;
  min-height: 0;
}

.g-page {
  display: flex;
  flex-direction: column;
  height: calc(100dvh - 64px);
  min-height: 520px;
}

.g-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: var(--s6);
  flex: none;
  padding: var(--s5) var(--gutter) var(--s4);
  border-bottom: 1px solid var(--rule);
  background: var(--bg);
}

.g-eyebrow {
  margin: 0 0 2px;
  font-size: var(--fs-micro);
  letter-spacing: 0.08em;
  color: var(--accent);
}

.g-title {
  margin: 0;
  font-size: var(--fs-h1);
  font-weight: var(--fw-h3);
  line-height: 1.05;
  letter-spacing: -0.03em;
  font-variant-numeric: tabular-nums;
}

.g-unit {
  margin-left: 8px;
  font-family: var(--font-mono);
  font-size: var(--fs-small);
  font-weight: var(--fw-medium);
  letter-spacing: 0;
  color: var(--ink-muted);
}

.g-dot {
  margin: 0 10px;
  font-weight: var(--fw-body);
  color: var(--ink-ghost);
}

.g-filters {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 6px;
  max-width: 72%;
}

.g-filter {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border: 1px solid var(--rule);
  background: var(--card);
  padding: 4px 11px;
  font-family: var(--font-sans);
  font-size: var(--fs-micro);
  line-height: 1.5;
  letter-spacing: 0.02em;
  color: var(--ink-muted);
  cursor: pointer;
  transition: color 0.12s ease, border-color 0.12s ease, opacity 0.12s ease;
}

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

.g-filter.is-on {
  border-color: var(--rule-strong);
  color: var(--ink);
}

.g-filter:not(.is-on) {
  opacity: 0.4;
}

.g-filter:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}

.g-filter__dot {
  flex: none;
  width: 8px;
  height: 8px;
  background: var(--c, var(--ink));
}

.g-canvas {
  position: relative;
  flex: 1 1 auto;
  min-height: 0;
  overflow: hidden;
  background: radial-gradient(circle at 50% 44%, var(--card) 0%, var(--bg) 72%);
}

#g-svg {
  display: block;
  width: 100%;
  height: 100%;
  cursor: grab;
  touch-action: none;
  -webkit-user-select: none;
  user-select: none;
}

#g-svg.is-panning {
  cursor: grabbing;
}

.g-link {
  fill: none;
  stroke: var(--ink-3);
  stroke-width: 0.7;
  opacity: 0.42;
  vector-effect: non-scaling-stroke;
  transition: opacity 0.15s ease;
}

.g-link[data-rel="依据"] {
  stroke: var(--ink-3);
  stroke-width: 0.7;
  opacity: 0.42;
}

.g-link[data-rel="演生"] {
  stroke: var(--park);
  stroke-width: 0.7;
  stroke-dasharray: 5 3;
  opacity: 0.45;
}

.g-link[data-rel="前提"] {
  stroke: var(--park);
  stroke-width: 0.8;
  stroke-dasharray: 1 4;
  stroke-linecap: round;
  opacity: 0.5;
}

.g-link[data-rel="反例"] {
  stroke: var(--red-deep);
  stroke-width: 0.6;
  stroke-dasharray: 3 2 1 2;
  opacity: 0.4;
}

.g-link[data-rel="跨域"] {
  stroke: var(--brand);
  stroke-width: 0.6;
  stroke-dasharray: 9 2 2 2;
  opacity: 0.45;
}

.g-link-on {
  fill: none;
  stroke: var(--accent);
  stroke-width: 1.1;
  opacity: 0.9;
  vector-effect: non-scaling-stroke;
}

.g-node {
  cursor: pointer;
  transition: opacity 0.15s ease;
}

.g-hit {
  pointer-events: all;
}

.g-node circle:not(.g-hit) {
  stroke: var(--ink);
  stroke-width: 0.5;
  transition: stroke-width 0.12s ease;
}

.g-node text {
  fill: var(--ink-dim);
  font-family: var(--font-sans);
  font-size: var(--fs-micro);
  letter-spacing: 0.01em;
  pointer-events: none;
}

.g-canvas.has-focus .g-node {
  opacity: 0.16;
}

.g-canvas.has-focus .g-node.is-neigh,
.g-canvas.has-focus .g-node.is-focus {
  opacity: 1;
}

.g-canvas.has-focus .g-link {
  opacity: 0.07;
}

.g-node.is-neigh circle:not(.g-hit) {
  stroke: var(--accent);
  stroke-width: 1;
}

.g-node.is-focus circle:not(.g-hit) {
  stroke: var(--accent);
  stroke-width: 1.8;
}

.g-node.is-focus text {
  fill: var(--ink);
}

.g-tip {
  position: fixed;
  z-index: 48;
  width: 236px;
  padding: 12px;
  background: var(--card);
  border: 1px solid var(--rule);
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.12s ease;
}

.g-tip[aria-hidden="false"] {
  opacity: 1;
}

.g-tip__name {
  font-size: var(--fs-small);
  font-weight: var(--fw-h3);
  line-height: 1.4;
  letter-spacing: -0.01em;
}

.g-tip__meta {
  margin-top: 3px;
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  line-height: 1.5;
  color: var(--ink-muted);
}

.g-tip__deg {
  margin-top: 8px;
  padding-top: 8px;
  border-top: 1px solid var(--rule);
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  line-height: 1.5;
  color: var(--accent);
}

.g-legend {
  position: absolute;
  right: 24px;
  bottom: 54px;
  padding: 6px 11px;
  background: var(--card);
  border: 1px solid var(--rule);
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  letter-spacing: 0.04em;
  color: var(--ink-muted);
  pointer-events: none;
}

.g-rel-key {
  position: absolute;
  left: 24px;
  bottom: 16px;
  padding: 6px 11px;
  background: var(--card);
  border: 1px solid var(--rule);
  font-size: var(--fs-micro);
  letter-spacing: 0.04em;
  color: var(--ink-muted);
  pointer-events: none;
}

.g-noscript {
  position: absolute;
  inset: 50% auto auto 50%;
  transform: translate(-50%, -50%);
  margin: 0;
  padding: 16px 20px;
  background: var(--card);
  border: 1px solid var(--rule);
  font-size: var(--fs-small);
  color: var(--ink-dim);
}

/* 移动端卡片预览抽屉 */
.mgs {
  position: fixed;
  inset: 0;
  z-index: 60;
}

.mgs[hidden] {
  display: none;
}

.mgs__scrim {
  position: absolute;
  inset: 0;
  width: 100%;
  border: 0;
  background: rgba(17, 17, 17, 0.32);
  opacity: 0;
  transition: opacity 0.18s ease;
}

.mgs__panel {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  max-height: 82dvh;
  overflow-y: auto;
  padding: 20px var(--gutter) calc(20px + env(safe-area-inset-bottom));
  background: var(--card);
  border-top: 1px solid var(--ink);
  transform: translateY(100%);
  transition: transform 0.22s ease;
}

.mgs[data-open="true"] .mgs__scrim {
  opacity: 1;
}

.mgs[data-open="true"] .mgs__panel {
  transform: translateY(0);
}

.mgs__close {
  float: right;
  border: 1px solid var(--rule-strong);
  background: transparent;
  padding: 3px 10px;
  font-size: var(--fs-micro);
  color: var(--ink-dim);
}

.mgs__close:hover {
  border-color: var(--ink);
  color: var(--ink);
}

.mgs__disc {
  margin: 0 0 4px;
  font-size: var(--fs-micro);
  letter-spacing: 0.04em;
  color: var(--ink-muted);
}

.mgs__name {
  margin: 0;
  font-size: var(--fs-h2);
  font-weight: var(--fw-h3);
  line-height: 1.3;
  letter-spacing: -0.02em;
}

.mgs__summary {
  margin: 10px 0 0;
  font-size: var(--fs-small);
  line-height: 1.7;
  color: var(--ink-dim);
}

.mgs__neighbors-head {
  margin: 18px 0 8px;
  font-size: var(--fs-micro);
  letter-spacing: 0.06em;
  color: var(--ink-muted);
}

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

.mgs__neighbor {
  border: 1px solid var(--rule);
  padding: 3px 9px;
  font-size: var(--fs-micro);
  line-height: 1.5;
  color: var(--ink-dim);
  text-decoration: none;
}

.mgs__neighbor:hover {
  border-color: var(--ink);
  color: var(--ink);
}

.mgs__neighbors-more {
  border: 1px solid var(--rule-strong);
  background: transparent;
  padding: 3px 9px;
  font-size: var(--fs-micro);
  color: var(--ink-dim);
}

.mgs__cta {
  display: block;
  margin-top: 20px;
  padding: 11px 16px;
  background: var(--ink);
  color: var(--card);
  border: 1px solid var(--ink);
  font-size: var(--fs-small);
  text-align: center;
  text-decoration: none;
}

.mgs__cta:hover {
  background: var(--accent);
  border-color: var(--accent);
}

@media (max-width: 1000px) {
  .g-head {
    align-items: flex-start;
    flex-direction: column;
    gap: var(--s3);
  }

  .g-filters {
    justify-content: flex-start;
    max-width: none;
  }
}

@media (max-width: 620px) {
  .g-head {
    padding: 12px var(--gutter) 10px;
    gap: var(--s2);
  }

  .g-title {
    font-size: var(--fs-h2);
  }

  .g-filters {
    flex-wrap: nowrap;
    width: 100%;
    overflow-x: auto;
    padding-bottom: 2px;
    scrollbar-width: none;
  }

  .g-filters::-webkit-scrollbar {
    display: none;
  }

  .g-filter {
    flex: none;
  }

  .g-legend {
    right: 12px;
    bottom: 10px;
  }
}

/* ---------- 书目 ---------- */

.canonical-list {
  border-bottom: 1px solid var(--rule);
}

.canonical-row {
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr) 100px 70px;
  align-items: baseline;
  gap: 20px;
  padding: 16px 0;
  border-top: 1px solid var(--rule);
  text-decoration: none;
}

.canonical-row:hover .canonical-title {
  color: var(--accent);
}

.canonical-title {
  font-size: var(--fs-h3);
}

.canonical-sub {
  font-size: var(--fs-small);
  color: var(--ink-muted);
}

.canonical-status {
  font-size: var(--fs-micro);
  color: var(--ink-dim);
}

.prose {
  max-width: 64em;
}

.prose p {
  margin-bottom: 14px;
  color: var(--ink-dim);
}

.prose p:last-child {
  margin-bottom: 0;
}

/* ---------- 关于 ---------- */

.model-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--rule);
  border: 1px solid var(--rule);
}

.model-grid > div {
  padding: 20px;
  background: var(--bg);
}

.model-grid .mono {
  display: block;
  margin-bottom: 8px;
  font-size: var(--fs-micro);
  color: var(--ink-muted);
}

.model-grid p {
  font-size: var(--fs-small);
  color: var(--ink-dim);
}

/* ---------- 页脚 ---------- */

.site-footer {
  margin-top: 40px;
  border-top: 1px solid var(--rule);
}

.footer-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 24px var(--gutter) 40px;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
  font-size: var(--fs-micro);
  color: var(--ink-muted);
}

.footer-links {
  display: flex;
  gap: 20px;
}

.footer-links a {
  color: var(--ink-dim);
  text-decoration: none;
}

/* ---------- 搜索 ---------- */

[hidden] {
  display: none !important;
}

.search-overlay {
  position: fixed;
  inset: 0;
  z-index: 100;
  padding: 10vh 20px 20px;
  background: rgba(17, 17, 17, 0.38);
  overflow-y: auto;
}

.search-dialog {
  width: min(680px, 100%);
  margin: 0 auto;
  padding: 20px;
  background: var(--card);
  border: 1px solid var(--ink);
}

.search-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 8px;
  font-size: var(--fs-micro);
  color: var(--ink-muted);
}

.search-close {
  border: 0;
  background: transparent;
  padding: 4px;
  font-size: var(--fs-micro);
  color: var(--ink-dim);
}

.search-close:hover {
  color: var(--accent);
}

.search-input {
  width: 100%;
  padding: 10px 0;
  border: 0;
  border-bottom: 1px solid var(--ink);
  background: transparent;
  font-size: var(--fs-h2);
  line-height: 1.3;
  outline: none;
}

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

.search-meta {
  padding: 12px 0 8px;
  font-size: var(--fs-micro);
  color: var(--ink-muted);
}

.search-results {
  max-height: 50vh;
  overflow-y: auto;
  border-top: 1px solid var(--rule);
}

.search-result {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 8px 16px;
  padding: 12px 0;
  border-bottom: 1px solid var(--rule);
  text-decoration: none;
}

.search-result:hover strong {
  color: var(--accent);
}

.search-result strong {
  font-size: var(--fs-body);
  font-weight: var(--fw-medium);
}

.search-result span {
  font-size: var(--fs-small);
  color: var(--ink-muted);
}

.search-result .search-result-type {
  grid-column: 2;
  grid-row: 1;
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  color: var(--ink-muted);
}

.search-result .search-result-summary {
  grid-column: 1 / -1;
  font-size: var(--fs-small);
  color: var(--ink-dim);
}

.search-empty {
  padding: 24px 0;
  font-size: var(--fs-small);
  color: var(--ink-muted);
}

body.search-open {
  overflow: hidden;
}

/* ---------- 响应式 ---------- */

@media (max-width: 1100px) {
  .feature-card {
    grid-column: span 6;
  }

  .feature-main {
    grid-column: span 12;
  }

  .disc-row {
    grid-template-columns: 200px minmax(0, 1fr) 64px;
    gap: 24px;
  }

  .card-row {
    grid-template-columns: 180px 120px minmax(0, 1fr) 64px;
  }

  .case-row {
    grid-template-columns: minmax(0, 1fr) 100px 170px 130px 48px;
  }
}

@media (max-width: 860px) {
  :root {
    --gutter: 24px;
    --fs-display: 44px;
    --fs-h1: 34px;
  }

  .hero {
    padding: 56px 0 40px;
  }

  .section {
    padding: 40px 0;
  }

  .section-head {
    grid-template-columns: 40px minmax(0, 1fr);
  }

  .section-aside {
    grid-column: 2;
    text-align: left;
  }

  .stat-strip {
    grid-template-columns: repeat(3, 1fr);
  }

  .stat-item:nth-child(4) {
    border-left: 0;
    padding-left: 0;
  }

  .stat-item:nth-child(n + 4) {
    border-top: 1px solid var(--rule);
  }

  .disc-row {
    grid-template-columns: 1fr;
    gap: 16px;
    padding: 24px 0;
  }

  .disc-row__list {
    grid-template-columns: repeat(2, 1fr);
  }

  .disc-row__count {
    font-size: var(--fs-h2);
    text-align: left;
  }

  .disc-row__count span {
    text-align: left;
  }

  .scene-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .book-row {
    grid-template-columns: 180px minmax(0, 1fr) 60px;
  }

  .book-status {
    display: none;
  }

  .case-row {
    grid-template-columns: minmax(0, 1fr) auto;
    grid-template-areas:
      "main meta"
      "stock date"
      "source source";
    gap: 2px 12px;
    padding: 14px 0;
  }

  .case-row-main {
    grid-area: main;
  }

  .case-row-stock {
    grid-area: stock;
  }

  .case-row-date {
    grid-area: date;
    text-align: right;
  }

  .case-row-source {
    grid-area: source;
  }

  .case-row-meta {
    grid-area: meta;
  }

  .evidence-row {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .toc-chapter summary {
    grid-template-columns: 16px minmax(0, 1fr);
    gap: 4px 10px;
  }

  .toc-chapter-meta {
    grid-column: 2;
    text-align: left;
  }

  .toc-row {
    grid-template-columns: 52px minmax(0, 1fr) auto;
    grid-template-areas:
      "page title chars"
      ". refs refs";
    gap: 3px 10px;
    padding: 10px 0;
  }

  .toc-page {
    grid-area: page;
  }

  .toc-title {
    grid-area: title;
  }

  .toc-chars {
    grid-area: chars;
    text-align: right;
  }

  .toc-refs {
    grid-area: refs;
  }

  .card-row {
    grid-template-columns: 1fr auto;
    grid-template-areas:
      "main meta"
      "type type"
      "summary summary";
    gap: 2px 12px;
    padding: 14px 0;
  }

  .card-row-main {
    grid-area: main;
  }

  .card-row-type {
    grid-area: type;
  }

  .card-row-summary {
    grid-area: summary;
  }

  .card-row-meta {
    grid-area: meta;
  }

  .rel-groups,
  .quotes {
    grid-template-columns: 1fr;
  }

  .field-grid {
    grid-template-columns: 1fr;
  }

  .model-grid {
    grid-template-columns: 1fr 1fr;
  }

  .canonical-row {
    grid-template-columns: 1fr auto;
    gap: 4px 16px;
  }

  .canonical-sub {
    grid-column: 1 / -1;
  }

  .canonical-status {
    display: none;
  }

}

@media (max-width: 640px) {
  .header-inner {
    min-height: 64px;
    gap: 12px;
  }

  .header-search {
    flex: 0 0 auto;
    max-width: none;
  }

  .search-trigger {
    width: 44px;
    height: 44px;
    padding: 0;
    justify-content: center;
    gap: 0;
    background: transparent;
    border-color: transparent;
    color: var(--ink);
  }

  .search-placeholder,
  .search-kbd {
    display: none;
  }

  .site-nav {
    display: none;
  }

  .menu-toggle {
    display: flex;
  }
}

@media (max-width: 620px) {
  :root {
    --gutter: 18px;
    --fs-display: 38px;
    --fs-h1: 30px;
    --fs-h2: 21px;
  }

  .brand-sub {
    display: none;
  }

  .disc-row__list {
    grid-template-columns: 1fr;
  }

  .scene-sec {
    padding-top: 32px;
    padding-bottom: 40px;
  }

  .scene-grid {
    grid-template-columns: 1fr;
  }

  .hero h1 {
    max-width: none;
  }

  .hero-br {
    display: inline;
  }

  .feature-card,
  .feature-main {
    grid-column: span 12;
  }

  .stat-strip {
    grid-template-columns: 1fr 1fr;
  }

  .stat-item:nth-child(3),
  .stat-item:nth-child(5) {
    border-left: 0;
    padding-left: 0;
  }

  .stat-item:nth-child(4) {
    border-left: 1px solid var(--rule);
    padding-left: 16px;
  }

  .book-row {
    grid-template-columns: 1fr auto;
  }

  .book-sub {
    grid-column: 1 / -1;
  }

  .model-grid {
    grid-template-columns: 1fr;
  }

  .phase-notes li {
    grid-template-columns: 1fr;
    gap: 2px;
  }

  .criteria-row {
    grid-template-columns: 1fr 32px;
    gap: 2px 12px;
  }

  .criteria-row span:nth-child(2) {
    grid-column: 1 / -1;
  }

  .empty-block {
    padding: 20px;
  }

  .quote blockquote {
    font-size: var(--fs-body);
  }

  .footer-inner {
    display: block;
  }

  .footer-links {
    margin-top: 8px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}

/* 浏览器原生搜索清除按钮会破坏纸面/直角视觉 */
.search-input::-webkit-search-cancel-button,
.search-input::-webkit-search-decoration {
  -webkit-appearance: none;
  appearance: none;
}

/* ============================================================
   首页 · 批注本
   纸 / 墨 / 朱批。分区靠结构线与留白，不靠底色。
   ============================================================ */

.page > .wrap {
  max-width: none;
  padding-left: 0;
  padding-right: 0;
}

.home-sec {
  padding: var(--s11) 0 0;
  border-top: 0;
}

.sec-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 32px;
  margin-bottom: 40px;
}

.sec-head h2 {
  font-size: var(--fs-h2);
  font-weight: 600;
  line-height: 1.4;
  margin: 0;
  letter-spacing: 0.01em;
}

.sec-head span {
  font-family: var(--font-sans);
  font-size: var(--fs-small);
  color: var(--ink-3);
}

@media (max-width: 600px) {
  .home-sec { padding-top: 72px; }
  .sec-head { flex-direction: column; gap: 8px; }
}

/* ---------- 卷首 ---------- */

.hero {
  padding: 96px 0 0;
}

.hero-quote {
  margin: 0;
}

.nb {
  white-space: nowrap;
}

.hero-quote p {
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: clamp(28px, 4vw, 46px);
  line-height: 1.52;
  letter-spacing: 0.01em;
  margin: 0;
  max-width: 18em;
}

.hero-quote cite {
  display: block;
  margin-top: 36px;
  font-family: var(--font-sans);
  font-style: normal;
  font-size: var(--fs-small);
  color: var(--ink-2);
  letter-spacing: 0.02em;
  padding-left: 18px;
  position: relative;
}

.hero-quote cite::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.52em;
  width: 7px;
  height: 7px;
  background: var(--zhu);
}

.hero-note {
  margin-top: 72px;
  padding-top: 24px;
  border-top: 1px solid var(--rule);
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 32px;
  flex-wrap: wrap;
}

.hero-note p {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 14px;
  line-height: 1.9;
  color: var(--ink-2);
  max-width: 44em;
}

.hero-links {
  display: flex;
  gap: 32px;
}

.link-ink {
  font-family: var(--font-sans);
  font-size: 14px;
  color: var(--ink);
  border-bottom: 1px solid var(--rule);
  padding-bottom: 2px;
  transition: border-color 0.15s;
}

.link-ink:hover {
  border-bottom-color: var(--ink);
  color: var(--ink);
}

@media (max-width: 600px) {
  .hero { padding-top: 72px; }
  .hero-note { margin-top: 48px; }
  .hero-quote p { font-size: 26px; line-height: 1.62; text-wrap: pretty; }
  .hero-quote p br { display: none; }
  .hero-quote cite { margin-top: 24px; }
}

/* ---------- 规模条 ---------- */

.home-stats {
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  margin-top: 96px;
}

.home-stats .wrap {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 0;
  padding-top: 28px;
  padding-bottom: 28px;
}

.stat {
  padding-left: 20px;
  border-left: 1px solid var(--hairline);
}

.stat:first-child {
  padding-left: 0;
  border-left: 0;
}

.stat b {
  display: block;
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 22px;
  line-height: 1.1;
  letter-spacing: -0.01em;
}

.stat span {
  display: block;
  margin-top: 8px;
  font-family: var(--font-sans);
  font-size: 12px;
  color: var(--ink-3);
}

@media (max-width: 900px) {
  .home-stats .wrap { grid-template-columns: repeat(3, 1fr); row-gap: 28px; }
  .stat:nth-child(4) { padding-left: 0; border-left: 0; }
}

@media (max-width: 520px) {
  .home-stats .wrap { grid-template-columns: repeat(2, 1fr); }
  .stat:nth-child(odd) { padding-left: 0; border-left: 0; }
}

/* ---------- 问题域目录 ---------- */

.disc-toc {
  border-top: 1px solid var(--rule);
}

.disc-toc-row {
  display: grid;
  grid-template-columns: 56px 1fr 96px;
  align-items: baseline;
  gap: 24px;
  padding: 17px 0;
  border-bottom: 1px solid var(--hairline);
  text-decoration: none;
}

.disc-toc-row:hover .name {
  text-decoration: underline;
  text-decoration-color: var(--zhu);
  text-decoration-thickness: 1px;
  text-underline-offset: 5px;
}

.disc-toc-row:hover {
  color: inherit;
}

.disc-toc-row .no {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-3);
  letter-spacing: 0.06em;
}

.disc-toc-row .name {
  display: flex;
  align-items: center;
  gap: 14px;
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 600;
  letter-spacing: 0.01em;
}

.disc-toc-row .swatch {
  width: 10px;
  height: 10px;
  flex: none;
  background: var(--c);
}

.disc-toc-row .covers {
  display: block;
  font-family: var(--font-sans);
  font-size: var(--fs-small);
  color: var(--ink-3);
  margin-top: 2px;
  padding-left: 24px;
}

.disc-toc-row .n {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--ink-3);
  text-align: right;
  white-space: nowrap;
}

.disc-toc-row .n em {
  font-family: var(--font-sans);
  font-style: normal;
  font-size: 11px;
  margin-left: 3px;
}

.disc-toc-row:hover .no {
  color: var(--zhu);
}

@media (max-width: 700px) {
  .disc-toc-row { grid-template-columns: 40px 1fr; gap: 12px; }
  .disc-toc-row .n { display: none; }
}

/* ---------- 成卡索引 ---------- */

.idx {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0 48px;
}

.idx-col {
  border-top: 1px solid var(--rule);
}

.idx-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 16px;
  padding: 12px 0;
  border-bottom: 1px solid var(--hairline);
  text-decoration: none;
}

.idx-row:hover {
  color: inherit;
}

.idx-row:hover .t {
  text-decoration: underline;
  text-decoration-color: var(--zhu);
  text-decoration-thickness: 1px;
  text-underline-offset: 4px;
}

.idx-row .t {
  font-family: var(--font-serif);
  font-size: 17px;
  letter-spacing: 0.01em;
}

.idx-row .p {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-3);
  white-space: nowrap;
  text-decoration: none;
}

@media (max-width: 900px) {
  .idx { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 560px) {
  .idx { grid-template-columns: 1fr; }
  .idx-col + .idx-col { border-top: 0; }
}

/* ---------- 墨碑 ---------- */

.stele {
  margin-top: var(--s11);
  background: var(--stele);
  color: var(--on-stele);
  padding: 64px 40px 56px;
}

:root[data-theme="night"] .stele {
  border-top: 1px solid #312c27;
  border-bottom: 1px solid #312c27;
}

.stele .sec-head h2 {
  color: var(--on-stele);
}

.stele .sec-head span {
  color: rgba(246, 242, 231, 0.55);
}

.stele-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid rgba(246, 242, 231, 0.22);
}

.stele-item {
  display: block;
  color: var(--on-stele);
  padding: 28px 24px 28px 0;
  border-bottom: 1px solid rgba(246, 242, 231, 0.14);
  border-right: 1px solid rgba(246, 242, 231, 0.14);
  text-decoration: none;
}

.stele-item:nth-child(4n) {
  border-right: 0;
}

.stele-item .no {
  font-family: var(--font-mono);
  font-size: 11px;
  color: rgba(246, 242, 231, 0.5);
  letter-spacing: 0.08em;
}

.stele-item .q {
  margin-top: 12px;
  font-family: var(--font-serif);
  font-size: 19px;
  line-height: 1.5;
  color: var(--on-stele);
}

.stele-item:hover .q {
  color: var(--on-stele);
  text-decoration: underline;
  text-decoration-color: #c9502f;
  text-decoration-thickness: 1px;
  text-underline-offset: 5px;
}

.stele-item.hot .no {
  color: #e06a4d;
}

.stele-item.hot .q::after {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  background: #c9502f;
  margin-left: 10px;
  vertical-align: 0.28em;
}

@media (max-width: 900px) {
  .stele-grid { grid-template-columns: repeat(2, 1fr); }
  .stele-item:nth-child(4n) { border-right: 1px solid rgba(246, 242, 231, 0.14); }
  .stele-item:nth-child(2n) { border-right: 0; }
}

@media (max-width: 520px) {
  .stele { padding: 52px 24px 44px; }
  .stele-grid { grid-template-columns: 1fr; }
  .stele-item { border-right: 0 !important; padding-right: 0; }
}

/* ---------- 五本原书 ---------- */

.books {
  display: grid;
  grid-template-columns: 234px 1fr;
  gap: 72px;
  align-items: end;
}

.spines {
  display: flex;
  gap: 6px;
  align-items: flex-end;
  height: 232px;
  margin-top: 8px;
}

.spine {
  width: 42px;
  flex: none;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  padding: 16px 0 14px;
  color: #f4efe2;
}

.spine .st {
  writing-mode: vertical-rl;
  font-family: var(--font-serif);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.14em;
  line-height: 1.3;
}

.spine .sn {
  font-family: var(--font-mono);
  font-size: 9px;
  color: rgba(244, 239, 226, 0.6);
  letter-spacing: 0.06em;
}

.booklist {
  margin: 0;
  padding: 0;
  list-style: none;
}

.booklist .book-row {
  display: grid;
  grid-template-columns: 168px 1fr auto;
  gap: 20px;
  align-items: baseline;
  padding: 11px 0;
  border-bottom: 1px solid var(--hairline);
}

.booklist li:first-child {
  border-top: 1px solid var(--rule);
}

.booklist .bt {
  font-family: var(--font-serif);
  font-size: 15px;
  font-weight: 600;
}

.booklist .bs {
  font-family: var(--font-sans);
  font-size: var(--fs-small);
  color: var(--ink-3);
}

.booklist .by {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-3);
}

@media (max-width: 820px) {
  .books { grid-template-columns: 1fr; gap: 40px; }
  .booklist .book-row { grid-template-columns: 1fr; gap: 2px; }
}

@media (max-width: 760px) {
  .spines { height: 176px; gap: 5px; }
  .spine { width: 38px; }
}

/* ---------- 页脚版权页 ---------- */

.colophon {
  margin-top: 120px;
  border-top: 1px solid var(--rule);
  padding: 56px 0 96px;
}

.colo-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 48px;
}

.colo-grid h3 {
  font-family: var(--font-serif);
  font-size: 15px;
  font-weight: 600;
  margin: 0 0 14px;
  letter-spacing: 0.04em;
}

.colo-grid p,
.colo-grid li {
  font-family: var(--font-sans);
  font-size: 12.5px;
  line-height: 2;
  color: var(--ink-3);
  margin: 0;
}

.colo-grid ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.colo-rule {
  height: 1px;
  background: var(--hairline);
  margin: 40px 0 20px;
}

.colo-fine {
  font-family: var(--font-sans);
  font-size: 11.5px;
  color: var(--ink-3);
  line-height: 1.9;
}

@media (max-width: 760px) {
  .colo-grid { grid-template-columns: 1fr; gap: 28px; }
}

/* ---------- 夜读开关 ---------- */

#themebtn {
  position: fixed;
  right: 20px;
  bottom: 20px;
  z-index: 50;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  background: var(--paper);
  color: var(--ink-2);
  border: 1px solid var(--rule);
  padding: 9px 14px;
  cursor: pointer;
}

#themebtn:hover {
  color: var(--ink);
}

@media (max-width: 600px) {
  #themebtn {
    right: 14px;
    bottom: 14px;
    padding: 7px 11px;
    font-size: 10px;
  }
}

/* ---------- 卡片出处清单 ---------- */

.source-details {
  margin-top: 16px;
  padding-top: 12px;
  border-top: 1px solid var(--rule);
}

.source-details > summary {
  display: flex;
  align-items: baseline;
  gap: 10px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  letter-spacing: 0.04em;
  color: var(--ink-2);
}

.source-details > summary::-webkit-details-marker {
  display: none;
}

.source-details > summary::before {
  content: "＋";
  color: var(--ink-3);
}

.source-details[open] > summary::before {
  content: "－";
}

.source-details > summary span {
  color: var(--ink-3);
}

.source-list {
  margin: 10px 0 0;
  padding: 0;
  list-style: none;
}

.source-list li {
  padding: 7px 0;
  border-top: 1px solid var(--rule);
  font-family: var(--font-sans);
  font-size: var(--fs-small);
  line-height: 1.6;
  color: var(--ink-2);
}

/* ---------- 长列表折叠 ---------- */

.fold-more {
  margin-top: 8px;
}

.fold-more > summary {
  cursor: pointer;
  list-style: none;
  padding: 8px 0;
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  letter-spacing: 0.04em;
  color: var(--ink-2);
}

.fold-more > summary::-webkit-details-marker {
  display: none;
}

.fold-more > summary::before {
  content: "＋ ";
}

.fold-more[open] > summary::before {
  content: "－ ";
}

.fold-more ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.fold-more--cards .card-list {
  border-bottom: 1px solid var(--rule);
}

/* ---------- 首页今日推荐 ---------- */

.home-rec .sec-head {
  margin-bottom: 32px;
}

.rec-group {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0 40px;
  border-top: 1px solid var(--ink);
}

.rec-group[hidden] {
  display: none;
}

.rec-card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-width: 0;
  padding: 20px 0;
  border-bottom: 1px solid var(--rule);
  text-decoration: none;
}

.rec-card strong {
  font-size: var(--fs-h3);
  font-weight: var(--fw-medium);
  line-height: 1.5;
  transition: color 0.15s;
}

.rec-card:hover strong {
  color: var(--accent);
}

.rec-disc {
  font-size: var(--fs-micro);
  letter-spacing: 0.06em;
  color: var(--ink-3);
}

.rec-disc::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  margin-right: 8px;
  background: var(--c, var(--ink-3));
}

.rec-summary {
  font-family: var(--font-sans);
  font-size: var(--fs-small);
  line-height: 1.7;
  color: var(--ink-2);
}

.rec-meta {
  margin-top: auto;
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  color: var(--ink-3);
}

.rec-controls {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  margin-top: 20px;
}

.rec-next {
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  letter-spacing: 0.06em;
  color: var(--ink);
  background: transparent;
  border: 1px solid var(--ink);
  padding: 7px 14px;
  cursor: pointer;
}

.rec-next:hover {
  background: var(--ink);
  color: var(--paper);
}

.rec-dots {
  display: flex;
  align-items: center;
  gap: 2px;
}

.rec-dot {
  position: relative;
  width: 24px;
  height: 24px;
  padding: 0;
  border: 0;
  background: transparent;
  cursor: pointer;
}

.rec-dot::after {
  content: "";
  position: absolute;
  inset: 8px;
  border: 1px solid var(--ink-3);
  background: transparent;
}

.rec-dot[aria-current="true"]::after {
  background: var(--zhu);
  border-color: var(--zhu);
}

@media (max-width: 800px) {
  .rec-group {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 600px) {
  .rec-group {
    grid-template-columns: 1fr;
  }
  .rec-controls {
    margin-top: 16px;
  }
}

/* ---------- 图版元数据 ---------- */

.plate-list {
  border-bottom: 1px solid var(--rule);
}

.plate-row {
  display: grid;
  grid-template-columns: 74px minmax(0, 1fr);
  align-items: baseline;
  gap: 14px;
  padding: 10px 0;
  border-top: 1px solid var(--rule);
}

.plate-list .plate-row:first-child {
  border-top: 0;
}

.plate-page {
  font-size: var(--fs-micro);
  color: var(--ink-muted);
  font-variant-numeric: tabular-nums;
}

.plate-main {
  min-width: 0;
}

.plate-caption {
  font-size: var(--fs-small);
  color: var(--ink);
}

.plate-todo {
  margin-left: 8px;
  font-size: var(--fs-micro);
  color: var(--amber);
  border: 1px solid var(--amber);
  padding: 0 4px;
  white-space: nowrap;
}

.plate-section {
  display: block;
  margin-top: 2px;
  font-size: var(--fs-micro);
  color: var(--ink-3);
}

.plate-note {
  margin-top: 12px;
  font-size: var(--fs-micro);
  color: var(--ink-3);
}

@media (max-width: 600px) {
  .plate-row {
    grid-template-columns: 56px minmax(0, 1fr);
    gap: 10px;
  }
}

/* ---------- 图版画廊与灯箱 ---------- */

.plate-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--rule);
}

.plate-card {
  display: flex;
  flex-direction: column;
  min-width: 0;
  border: 1px solid var(--hairline);
  background: var(--paper-warm);
  color: inherit;
  text-decoration: none;
}

.plate-card:hover {
  border-color: var(--ink);
  color: inherit;
}

.plate-media {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 180px;
  overflow: hidden;
  background: var(--paper-deep);
  border-bottom: 1px solid var(--hairline);
}

.plate-media img {
  display: block;
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
}

.plate-info {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 10px 12px 12px;
  min-width: 0;
}

.plate-page {
  font-size: var(--fs-micro);
  color: var(--ink-muted);
  font-variant-numeric: tabular-nums;
}

.plate-caption {
  font-size: var(--fs-small);
  line-height: 1.55;
  color: var(--ink);
}

.plate-todo {
  margin-left: 6px;
  font-size: var(--fs-micro);
  color: var(--amber);
  border: 1px solid var(--amber);
  padding: 0 4px;
  white-space: nowrap;
}

.plate-section {
  font-size: var(--fs-micro);
  line-height: 1.5;
  color: var(--ink-3);
}

.plate-note {
  margin-top: 12px;
  font-size: var(--fs-micro);
  color: var(--ink-3);
}

.plate-lightbox {
  position: fixed;
  inset: 0;
  z-index: 120;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: rgba(28, 25, 23, 0.86);
}

.plate-lightbox[hidden] {
  display: none;
}

.plate-lightbox-figure {
  max-width: 94vw;
  max-height: 90vh;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.plate-lightbox-figure img {
  max-width: 94vw;
  max-height: 82vh;
  object-fit: contain;
  background: var(--paper);
}

.plate-lightbox-figure figcaption {
  display: flex;
  flex-direction: column;
  gap: 4px;
  color: var(--on-stele);
  font-size: var(--fs-small);
  line-height: 1.55;
}

.plate-lightbox-figure figcaption .mono {
  color: var(--ink-on-dark);
}

.plate-lightbox-close {
  position: absolute;
  top: 18px;
  right: 22px;
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  color: var(--on-stele);
  background: transparent;
  border: 1px solid var(--ink-on-dark);
  padding: 8px 12px;
  cursor: pointer;
}

body.plate-open {
  overflow: hidden;
}

@media (max-width: 900px) {
  .plate-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 600px) {
  .plate-grid {
    grid-template-columns: 1fr;
    gap: 14px;
  }
  .plate-media {
    height: 200px;
  }
}

/* ---------- 图版关联卡 ---------- */

.plate-open {
  display: flex;
  flex-direction: column;
  color: inherit;
  text-decoration: none;
}

.plate-open:hover {
  color: inherit;
}

.plate-links {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 5px;
  padding: 8px 12px 10px;
  border-top: 1px solid var(--hairline);
}

.plate-links-label {
  margin-right: 2px;
  color: var(--ink-3);
  font-size: var(--fs-micro);
}

.plate-links .chip {
  padding: 1px 6px;
  font-size: var(--fs-micro);
  line-height: 1.6;
}

.plate-more {
  font-size: var(--fs-micro);
  color: var(--ink-3);
}

.spines .spine{text-decoration:none}.spines .spine:hover{color:var(--on-stele);outline:1px solid var(--ink);outline-offset:3px}.booklist .book-row{text-decoration:none}.booklist .book-row:hover .bt{text-decoration:underline}

.publication-note{max-width:76rem;margin:1rem auto 0;padding:0 1.5rem;font-size:12px;line-height:1.7;color:var(--ink-3)}.publication-note a{text-decoration:underline}