/* ==========================================================================
   广阳 · 平原手账（非官方概念页）
   唯一视觉方向：平原纸本 · 城市手账
   无外链请求 · 本地 SIL OFL 1.1 字体子集 + 系统兜底栈
   ========================================================================== */

@font-face {
  font-family: "Noto Serif CJK SC";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("../fonts/noto-serif-cjk-sc-regular.woff2") format("woff2");
}

@font-face {
  font-family: "Noto Serif CJK SC";
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url("../fonts/noto-serif-cjk-sc-bold.woff2") format("woff2");
}

@font-face {
  font-family: "Noto Sans CJK SC";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("../fonts/noto-sans-cjk-sc-regular.woff2") format("woff2");
}

@font-face {
  font-family: "Noto Sans CJK SC";
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url("../fonts/noto-sans-cjk-sc-bold.woff2") format("woff2");
}

:root {
  /* 限定色板：麦秆米白底、松烟墨字、砖红唯一强调、淡灰绿/灰褐辅助 */
  --paper: #f3eee3;
  --paper-bright: #f7f3ea;
  --paper-inset: #eae3d5;
  --paper-deep: #dfd6c5;

  --ink: #1e1c1a;
  --ink-secondary: #433e38;
  --ink-muted: #5f5850;

  --cinnabar: #b23a2b;
  --cinnabar-deep: #8f2a1d;
  --cinnabar-wash: #f6e5df;

  --sage-wash: #e5e8df;
  --sage-line: #6e7666;
  --sage-ink: #333d2e;

  --taupe-line: #8c8375;
  --taupe-hairline: #cfc5b3;
  --taupe-wash: #e9e2d4;

  --font-serif: "Noto Serif CJK SC", "Source Han Serif SC", "Songti SC", "STSong", "SimSun", Georgia, serif;
  --font-sans: "Noto Sans CJK SC", "Source Han Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-mono: ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;

  --radius-sm: 2px;
  --radius-md: 4px;
  --touch-min: 44px;
}

/* Reset & Base */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  background-color: var(--paper);
}

body {
  margin: 0;
  min-height: 100vh;
  background-color: var(--paper);
  /* 极细微纸面纤维网格，不增加视觉噪点 */
  background-image:
    radial-gradient(rgba(30, 28, 26, 0.045) 0.75px, transparent 0.75px),
    linear-gradient(to bottom, rgba(140, 131, 117, 0.06) 1px, transparent 1px);
  background-size: 18px 18px, 100% 32px;
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.78;
  line-break: strict;
  overflow-wrap: break-word;
  overflow-x: hidden;
}

body.drawer-open {
  overflow: hidden;
}

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

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

a {
  color: var(--ink);
  text-underline-offset: 3px;
}

a:hover {
  color: var(--cinnabar-deep);
}

:focus-visible {
  outline: 2.5px solid var(--cinnabar);
  outline-offset: 2px;
}

[hidden] {
  display: none !important;
}

.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 */
.skip-link {
  position: absolute;
  left: -9999px;
  top: 8px;
  z-index: 200;
  background: var(--ink);
  color: var(--paper-bright);
  padding: 10px 16px;
  min-height: var(--touch-min);
  display: inline-flex;
  align-items: center;
  text-decoration: none;
  font-weight: 700;
}

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

/* ==========================================================================
   顶部显著非官方声明条（全设备常驻可见，移动端不可永久关闭）
   ========================================================================== */
.disclaimer-bar {
  position: sticky;
  top: 0;
  z-index: 60;
  background-color: var(--paper-inset);
  border-top: 3px solid var(--cinnabar);
  border-bottom: 1.5px solid var(--ink);
  box-shadow: 0 2px 6px rgba(30, 28, 26, 0.08);
}

.disclaimer-inner {
  max-width: 1260px;
  margin: 0 auto;
  padding: 6px 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.disclaimer-text-wrap {
  min-width: 0;
  flex: 1 1 auto;
}

.disclaimer-lead {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.5;
  color: var(--ink);
  /* 移动端默认折叠为单行可见且可一键展开 */
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.disclaimer-tag {
  display: inline-block;
  margin-right: 6px;
  padding: 1px 6px;
  background-color: var(--cinnabar);
  color: var(--paper-bright);
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: 0.04em;
  border-radius: var(--radius-sm);
  vertical-align: 1px;
}

.disclaimer-extra {
  display: none;
  margin: 6px 0 0;
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--ink-secondary);
}

.disclaimer-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.disclaimer-toggle,
.disclaimer-jump {
  min-height: var(--touch-min);
  min-width: var(--touch-min);
  padding: 8px 10px;
  border: 1px solid var(--ink);
  background-color: var(--paper-bright);
  color: var(--ink);
  font-size: 13px;
  font-weight: 700;
  line-height: 1.2;
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  white-space: nowrap;
}

.disclaimer-toggle:hover,
.disclaimer-jump:hover {
  background-color: var(--ink);
  color: var(--paper-bright);
}

/* 移动端折叠时暂收"核实说明"链接以免挤占 320px 宽度，展开后即显示 */
.disclaimer-bar:not(.is-expanded) .disclaimer-jump {
  display: none;
}

.disclaimer-bar.is-expanded .disclaimer-inner {
  flex-direction: column;
  align-items: stretch;
  padding-top: 10px;
  padding-bottom: 10px;
}

.disclaimer-bar.is-expanded .disclaimer-lead {
  white-space: normal;
  overflow: visible;
}

.disclaimer-bar.is-expanded .disclaimer-extra {
  display: block;
}

.disclaimer-bar.is-expanded .disclaimer-actions {
  justify-content: flex-start;
  margin-top: 4px;
}

/* ==========================================================================
   版心框架与章节锚点间距
   ========================================================================== */
.page-frame {
  max-width: 1240px;
  margin: 0 auto;
  padding: 16px 14px 32px;
}

section[id],
#main-content {
  scroll-margin-top: 96px;
}

/* ==========================================================================
   封面 / 首屏：非对称纸本折页版式
   ========================================================================== */
.cover-spread {
  position: relative;
  background-color: var(--paper-bright);
  border: 1.5px solid var(--ink);
  padding: 18px 16px 22px;
  box-shadow: 4px 4px 0 rgba(30, 28, 26, 0.12);
}

/* 印刷角标 */
.cover-spread::before,
.cover-spread::after {
  content: "";
  position: absolute;
  width: 12px;
  height: 12px;
  pointer-events: none;
}

.cover-spread::before {
  top: -6px;
  left: -6px;
  border-top: 1.5px solid var(--cinnabar);
  border-left: 1.5px solid var(--cinnabar);
}

.cover-spread::after {
  bottom: -6px;
  right: -6px;
  border-bottom: 1.5px solid var(--cinnabar);
  border-right: 1.5px solid var(--cinnabar);
}

.folio-rail {
  border-bottom: 1px solid var(--taupe-hairline);
  padding-bottom: 16px;
  margin-bottom: 18px;
}

.rail-stamp-row {
  display: flex;
  align-items: center;
  gap: 12px;
}

.editorial-stamp {
  width: 60px;
  height: 60px;
  flex-shrink: 0;
}

.rail-meta {
  display: flex;
  flex-direction: column;
  gap: 2px;
  font-size: 12.5px;
  line-height: 1.45;
  color: var(--ink-muted);
}

.meta-label {
  font-family: var(--font-serif);
  font-weight: 700;
  color: var(--cinnabar-deep);
  letter-spacing: 0.08em;
}

/* 移动端隐藏纯装饰性竖排字，防止窄屏挤压或溢出 */
.vertical-motto {
  display: none;
}

.folio-toc {
  margin-top: 14px;
}

.toc-heading {
  margin: 0 0 8px;
  font-size: 12px;
  font-family: var(--font-mono);
  letter-spacing: 0.1em;
  color: var(--ink-muted);
  text-transform: uppercase;
}

.toc-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
}

@media (min-width: 356px) and (max-width: 1023px) {
  .toc-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .toc-list a {
    font-size: 13.5px;
    padding: 8px;
  }
}

.toc-list a {
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: var(--touch-min);
  padding: 8px 10px;
  text-decoration: none;
  font-size: 14.5px;
  border: 1px solid var(--taupe-hairline);
  background-color: var(--paper);
}

.toc-list a:hover {
  border-color: var(--cinnabar);
  color: var(--cinnabar-deep);
}

.toc-num {
  font-family: var(--font-serif);
  font-weight: 700;
  color: var(--cinnabar);
  flex-shrink: 0;
}

.cover-kicker-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--ink);
  font-size: 12.5px;
  letter-spacing: 0.06em;
  color: var(--ink-secondary);
}

.kicker-status {
  color: var(--cinnabar-deep);
  font-weight: 700;
}

.cover-title {
  margin: 16px 0 12px;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(1.85rem, 6vw, 3.15rem);
  line-height: 1.24;
  letter-spacing: 0.03em;
  color: var(--ink);
}

.cover-title-sub {
  display: block;
  margin-top: 6px;
  font-size: clamp(1rem, 2.8vw, 1.35rem);
  font-weight: 400;
  color: var(--cinnabar-deep);
}

.cover-lead {
  margin: 0 0 20px;
  max-width: 66ch;
  font-size: 16px;
  line-height: 1.82;
  color: var(--ink-secondary);
}

.cover-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  align-items: start;
}

.cover-figure {
  margin: 0;
  border: 1px solid var(--taupe-line);
  background-color: var(--paper);
  padding: 10px;
}

.cover-art-frame {
  border: 1px solid var(--taupe-hairline);
  background-color: var(--paper-bright);
  overflow: hidden;
}

.cover-caption {
  margin-top: 8px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  font-size: 13px;
  color: var(--ink-muted);
}

.cover-ledger {
  border: 1px solid var(--ink);
  background-color: var(--paper);
  padding: 14px 16px 16px;
}

.ledger-title {
  margin: 0 0 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--taupe-line);
  font-family: var(--font-serif);
  font-size: 17px;
  font-weight: 700;
}

.ledger-stats {
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.ledger-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 8px;
  font-size: 14px;
  padding-bottom: 6px;
  border-bottom: 1px dotted var(--taupe-hairline);
}

.ledger-row dt {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--ink-secondary);
  font-weight: 700;
}

.ledger-row dd {
  margin: 0;
  color: var(--ink-muted);
  text-align: right;
}

.dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  display: inline-block;
  flex-shrink: 0;
}

.dot--verified {
  background-color: var(--sage-ink);
}

.dot--unverified {
  background-color: var(--cinnabar);
}

.dot--sample {
  background-color: var(--taupe-line);
  border: 1px dashed var(--ink);
}

.dot--muted {
  background-color: var(--paper-deep);
  border: 1px solid var(--taupe-line);
}

.ledger-note {
  margin: 12px 0 14px;
  font-size: 13.5px;
  line-height: 1.65;
  color: var(--ink-muted);
}

.ledger-quick-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* ==========================================================================
   通用手账按钮与三种法定核实标签
   ========================================================================== */
.btn-editorial {
  min-height: var(--touch-min);
  min-width: var(--touch-min);
  padding: 9px 14px;
  border: 1px solid var(--ink);
  background-color: var(--paper-bright);
  color: var(--ink);
  font-size: 14px;
  font-weight: 700;
  line-height: 1.3;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: background-color 0.16s ease, color 0.16s ease, border-color 0.16s ease;
}

.btn-editorial:hover:not(:disabled) {
  background-color: var(--ink);
  color: var(--paper-bright);
}

.btn-editorial:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.btn-editorial--primary {
  background-color: var(--ink);
  color: var(--paper-bright);
}

.btn-editorial--primary:hover:not(:disabled) {
  background-color: var(--cinnabar-deep);
  border-color: var(--cinnabar-deep);
  color: var(--paper-bright);
}

.btn-editorial--danger {
  border-color: var(--cinnabar);
  color: var(--cinnabar-deep);
}

.btn-editorial--danger:hover:not(:disabled) {
  background-color: var(--cinnabar-wash);
  color: var(--cinnabar-deep);
}

.btn-editorial--danger-solid {
  background-color: var(--cinnabar);
  border-color: var(--cinnabar);
  color: var(--paper-bright);
}

.btn-editorial--danger-solid:hover:not(:disabled) {
  background-color: var(--cinnabar-deep);
  border-color: var(--cinnabar-deep);
}

.verify-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 5px;
  font-size: 13px;
  font-weight: 700;
  line-height: 1.2;
  padding: 5px 10px;
  border-radius: var(--radius-sm);
  white-space: nowrap;
}

/* 可点击来源按钮确保不小于 44×44px 触控热区 */
button.verify-badge {
  min-height: var(--touch-min);
  min-width: 72px;
  padding: 8px 12px;
  cursor: pointer;
  transition: transform 0.14s ease, box-shadow 0.14s ease;
}

button.verify-badge:hover {
  box-shadow: 2px 2px 0 rgba(30, 28, 26, 0.25);
  transform: translate(-1px, -1px);
}

.verify-badge--verified {
  background-color: var(--sage-wash);
  color: var(--sage-ink);
  border: 1px solid var(--sage-line);
  border-left: 3px solid var(--sage-ink);
}

.verify-badge--unverified {
  background-color: var(--cinnabar-wash);
  color: var(--cinnabar-deep);
  border: 1px solid var(--cinnabar);
  border-left: 3px solid var(--cinnabar);
}

.verify-badge--sample {
  background-color: var(--taupe-wash);
  color: var(--ink-secondary);
  border: 1px dashed var(--taupe-line);
}

/* ==========================================================================
   章节框架（壹 / 贰 / 叁 / 肆）
   ========================================================================== */
.zine-section {
  margin-top: 38px;
  padding-top: 26px;
  border-top: 1.5px solid var(--ink);
}

.section-header {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  margin-bottom: 22px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--taupe-hairline);
}

.section-num-wrap {
  display: flex;
  align-items: baseline;
  gap: 10px;
}

.chapter-num {
  font-family: var(--font-serif);
  font-size: 2rem;
  font-weight: 700;
  line-height: 1;
  color: var(--cinnabar);
}

.chapter-code {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.1em;
  color: var(--ink-muted);
}

.section-title {
  margin: 0 0 8px;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(1.35rem, 3.6vw, 1.95rem);
  line-height: 1.32;
}

.section-intro {
  margin: 0;
  max-width: 72ch;
  font-size: 16px;
  line-height: 1.78;
  color: var(--ink-secondary);
}

/* ==========================================================================
   壹 · 方位：四则事实笺 + 原创示意区位图
   ========================================================================== */
.orientation-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  align-items: start;
}

.orientation-facts {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.fact-slip {
  background-color: var(--paper-bright);
  border: 1px solid var(--taupe-line);
  border-left: 3px solid var(--ink);
  padding: 14px 16px;
}

.slip-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 6px;
}

.slip-code {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--ink-muted);
  letter-spacing: 0.06em;
}

.slip-title {
  margin: 0 0 8px;
  font-family: var(--font-serif);
  font-size: 17.5px;
  line-height: 1.4;
}

.slip-body {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--ink-secondary);
}

.schematic-map-card {
  margin: 0;
  background-color: var(--paper-bright);
  border: 1.5px solid var(--ink);
  padding: 12px;
}

.map-card-header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 10px;
}

.map-label {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 15.5px;
}

.schematic-svg-wrap {
  border: 1px solid var(--taupe-hairline);
  background-color: var(--paper);
}

#schematic-map text {
  paint-order: stroke;
  stroke: var(--paper-bright);
  stroke-width: 3.5px;
  stroke-linejoin: round;
}

#schematic-map .map-node {
  cursor: pointer;
}

#schematic-map .map-node.is-active circle:first-of-type {
  stroke: var(--cinnabar);
  stroke-width: 2;
}

.map-node-controls {
  margin-top: 12px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.map-chip {
  min-height: var(--touch-min);
  min-width: var(--touch-min);
  padding: 8px 12px;
  border: 1px solid var(--taupe-line);
  background-color: var(--paper);
  color: var(--ink);
  font-size: 13.5px;
  font-weight: 700;
  cursor: pointer;
  border-radius: var(--radius-sm);
}

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

.map-chip.is-active {
  background-color: var(--ink);
  border-color: var(--ink);
  color: var(--paper-bright);
}

.map-node-detail {
  margin-top: 12px;
  padding: 10px 12px;
  background-color: var(--paper);
  border-left: 3px solid var(--cinnabar);
  font-size: 15px;
  line-height: 1.72;
  color: var(--ink-secondary);
}

.map-node-detail p {
  margin: 0;
}

.map-caption {
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--ink-muted);
}

/* ==========================================================================
   贰 · 城市切面：筛选工具条 + 切面卡片 + 高亮状态区分
   ========================================================================== */
.facets-toolbar {
  background-color: var(--paper-bright);
  border: 1px solid var(--ink);
  padding: 14px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.toolbar-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.toolbar-label {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--ink-muted);
}

.filter-pills,
.view-switches {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.filter-pill,
.view-switch {
  min-height: var(--touch-min);
  min-width: var(--touch-min);
  padding: 8px 14px;
  border: 1px solid var(--taupe-line);
  background-color: var(--paper);
  color: var(--ink);
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  border-radius: var(--radius-sm);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.filter-pill:hover,
.view-switch:hover {
  border-color: var(--ink);
}

.filter-pill.is-active,
.view-switch.is-active {
  background-color: var(--ink);
  border-color: var(--ink);
  color: var(--paper-bright);
}

.view-switch[data-view="highlight"].is-active {
  background-color: var(--cinnabar);
  border-color: var(--cinnabar);
  color: var(--paper-bright);
}

.pill-count {
  font-weight: 400;
  opacity: 0.85;
}

.facets-feedback {
  margin: 14px 0 18px;
  padding: 10px 14px;
  background-color: var(--paper-inset);
  border-left: 3px solid var(--ink);
  font-size: 15px;
  color: var(--ink-secondary);
}

.facets-empty {
  margin: 20px 0;
  padding: 24px 18px;
  background-color: var(--paper-bright);
  border: 1.5px dashed var(--taupe-line);
  text-align: left;
}

.empty-kicker {
  margin: 0 0 8px;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 18px;
  color: var(--cinnabar-deep);
}

.empty-message {
  margin: 0 0 16px;
  max-width: 64ch;
  font-size: 15.5px;
  color: var(--ink-secondary);
}

.empty-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.facets-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  align-items: stretch;
}

.facet-card {
  position: relative;
  min-width: 0;
  display: flex;
  flex-direction: column;
  background-color: var(--paper-bright);
  border: 1px solid var(--ink);
  padding: 16px;
  box-shadow: 2px 2px 0 rgba(30, 28, 26, 0.08);
  transition: opacity 0.2s ease, border-color 0.2s ease, background-color 0.2s ease;
}

.facet-card.is-collected {
  border-top: 3px solid var(--cinnabar);
}

.card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 10px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--taupe-hairline);
}

.card-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  font-size: 12.5px;
}

.card-num {
  font-family: var(--font-mono);
  color: var(--ink-muted);
}

.card-theme {
  padding: 2px 7px;
  background-color: var(--paper-inset);
  color: var(--ink-secondary);
  font-weight: 700;
  border-radius: var(--radius-sm);
}

.card-title {
  margin: 0 0 10px;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 19px;
  line-height: 1.38;
  color: var(--ink);
}

.card-sketch {
  margin: 0 0 12px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.card-sketch svg {
  width: 100%;
  max-width: 280px;
}

.sketch-cap {
  font-size: 12px;
  color: var(--ink-muted);
}

.card-body {
  margin: 0 0 12px;
  font-size: 16px;
  line-height: 1.78;
  color: var(--ink-secondary);
}

.placeholder-box {
  margin: 0 0 12px;
  padding: 12px 12px;
  background-color: var(--cinnabar-wash);
  border: 1px dashed var(--cinnabar);
}

.placeholder-tag {
  display: inline-block;
  margin-bottom: 6px;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 14px;
  color: var(--cinnabar-deep);
}

.placeholder-box p {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.75;
  color: var(--ink-secondary);
}

.card-aside {
  margin: 0 0 14px;
  padding-top: 8px;
  border-top: 1px dotted var(--taupe-hairline);
  font-size: 13.5px;
  line-height: 1.62;
  color: var(--ink-muted);
}

.card-actions {
  margin-top: auto;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding-top: 6px;
}

.btn-collect,
.btn-source {
  min-height: var(--touch-min);
  min-width: var(--touch-min);
  padding: 8px 12px;
  font-size: 13.5px;
  font-weight: 700;
  border-radius: var(--radius-sm);
  cursor: pointer;
}

.btn-collect {
  border: 1px solid var(--ink);
  background-color: var(--paper);
  color: var(--ink);
  flex: 1 1 auto;
}

.btn-collect:hover {
  background-color: var(--ink);
  color: var(--paper-bright);
}

.btn-collect[aria-pressed="true"] {
  background-color: var(--cinnabar);
  border-color: var(--cinnabar);
  color: var(--paper-bright);
}

.btn-source {
  border: 1px solid var(--taupe-line);
  background-color: var(--paper-bright);
  color: var(--ink-secondary);
}

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

/* 「高亮未核实与示意内容」模式下必须形成强视觉区分 */
.facets-grid.is-highlight-mode .facet-card[data-status="verified"] {
  opacity: 0.45;
  background-color: var(--paper);
  border-color: var(--taupe-hairline);
  box-shadow: none;
}

.facets-grid.is-highlight-mode .facet-card[data-status="unverified"] {
  border: 2px solid var(--cinnabar);
  background-color: #fbf0eb;
  box-shadow: 4px 4px 0 var(--cinnabar);
}

.facets-grid.is-highlight-mode .facet-card[data-status="unverified"]::before {
  content: "提示 · 此项为「未核实」留白，请勿当作确凿信息";
  display: block;
  margin: -16px -16px 12px;
  padding: 6px 14px;
  background-color: var(--cinnabar);
  color: var(--paper-bright);
  font-size: 12.5px;
  font-weight: 700;
}

.facets-grid.is-highlight-mode .facet-card[data-status="sample"] {
  border: 2px dashed var(--ink);
  background-color: #ede6d6;
  box-shadow: 4px 4px 0 var(--taupe-line);
}

.facets-grid.is-highlight-mode .facet-card[data-status="sample"]::before {
  content: "提示 · 此项为「示意内容」，属原创虚构样本";
  display: block;
  margin: -16px -16px 12px;
  padding: 6px 14px;
  background-color: var(--ink);
  color: var(--paper-bright);
  font-size: 12.5px;
  font-weight: 700;
}

/* ==========================================================================
   叁 · 个人手账草稿板（本地 localStorage，拖拽 + 键盘/按钮双支持）
   ========================================================================== */
.local-storage-banner {
  margin-bottom: 16px;
  padding: 12px 14px;
  background-color: var(--sage-wash);
  border: 1px solid var(--sage-line);
  border-left: 4px solid var(--sage-ink);
  font-size: 15px;
  line-height: 1.68;
  color: var(--ink);
}

.scratchpad-panel {
  background-color: var(--paper-bright);
  border: 1.5px solid var(--ink);
  padding: 16px;
}

.scratchpad-topbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--taupe-hairline);
}

.scratchpad-count {
  font-size: 16px;
  color: var(--ink);
}

.confirm-box {
  margin: 14px 0;
  padding: 14px;
  background-color: var(--cinnabar-wash);
  border: 1.5px solid var(--cinnabar);
}

.confirm-text {
  margin: 0 0 10px;
  font-size: 15px;
  color: var(--ink);
}

.confirm-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.scratchpad-items {
  margin: 14px 0 18px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.scratchpad-empty {
  padding: 20px 14px;
  background-color: var(--paper);
  border: 1px dashed var(--taupe-line);
  font-size: 15px;
  color: var(--ink-muted);
}

.scratchpad-empty p {
  margin: 0;
}

.scratchpad-item {
  border: 1px solid var(--ink);
  background-color: var(--paper);
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.scratchpad-item.is-dragging {
  opacity: 0.55;
  border-style: dashed;
}

.scratchpad-item.is-drag-over {
  border-top: 3px solid var(--cinnabar);
}

.item-header {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: flex-start;
  gap: 10px;
}

.item-title-group {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  min-width: 0;
  flex: 1 1 200px;
}

.drag-handle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 4px 8px;
  border: 1px dashed var(--taupe-line);
  background-color: var(--paper-bright);
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--ink-muted);
  cursor: grab;
  user-select: none;
}

.item-order {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--cinnabar-deep);
}

.item-title {
  margin: 0;
  font-family: var(--font-serif);
  font-size: 16.5px;
  font-weight: 700;
}

.item-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.item-ctrl-btn {
  min-height: var(--touch-min);
  min-width: var(--touch-min);
  padding: 8px 11px;
  border: 1px solid var(--taupe-line);
  background-color: var(--paper-bright);
  color: var(--ink);
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  border-radius: var(--radius-sm);
}

.item-ctrl-btn:hover:not(:disabled) {
  border-color: var(--ink);
  background-color: var(--ink);
  color: var(--paper-bright);
}

.item-ctrl-btn:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}

.item-ctrl-btn--remove {
  color: var(--cinnabar-deep);
  border-color: var(--cinnabar);
}

.item-ctrl-btn--remove:hover:not(:disabled) {
  background-color: var(--cinnabar);
  border-color: var(--cinnabar);
  color: var(--paper-bright);
}

.item-note-wrap {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.item-note-label,
.memo-label {
  font-size: 13.5px;
  font-weight: 700;
  color: var(--ink-secondary);
}

.item-note-input,
.memo-textarea {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--taupe-line);
  background-color: var(--paper-bright);
  color: var(--ink);
  font-size: 15.5px;
  line-height: 1.65;
  border-radius: var(--radius-sm);
  resize: vertical;
}

.scratchpad-memo-block {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

/* ==========================================================================
   肆 · 来源与核实：摘要 + 来源对照表 + 降级/删除清单
   ========================================================================== */
.source-summary-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin-bottom: 24px;
}

.summary-card {
  background-color: var(--paper-bright);
  border: 1px solid var(--taupe-line);
  padding: 14px;
}

.summary-card p {
  margin: 10px 0 0;
  font-size: 14.5px;
  line-height: 1.68;
  color: var(--ink-secondary);
}

.sub-heading {
  margin: 26px 0 12px;
  font-family: var(--font-serif);
  font-size: 19px;
  font-weight: 700;
}

.table-scroll {
  width: 100%;
}

.sources-table {
  width: 100%;
  border-collapse: collapse;
  background-color: var(--paper-bright);
  font-size: 14.5px;
  line-height: 1.65;
}

/* 移动端采用卡片式堆叠表格，避免整表横向滚动导致小屏阅读障碍 */
.sources-table thead {
  display: none;
}

.sources-table tbody,
.sources-table tr,
.sources-table td {
  display: block;
  width: 100%;
}

.sources-table tr {
  border: 1px solid var(--ink);
  margin-bottom: 12px;
  padding: 10px 12px;
  background-color: var(--paper-bright);
}

.sources-table td {
  padding: 6px 0;
  border-bottom: 1px dotted var(--taupe-hairline);
  word-break: break-word;
}

.sources-table td:last-child {
  border-bottom: none;
}

.sources-table td::before {
  content: attr(data-label) "：";
  display: block;
  font-size: 12px;
  font-weight: 700;
  color: var(--ink-muted);
  margin-bottom: 2px;
}

.source-url-code {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12.5px;
  line-height: 1.5;
  color: var(--ink-secondary);
  background-color: var(--paper);
  padding: 2px 6px;
  border: 1px solid var(--taupe-hairline);
  word-break: break-all;
}

.degraded-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.degraded-card {
  background-color: var(--paper-bright);
  border: 1px solid var(--taupe-line);
  padding: 14px;
}

.degraded-tag {
  display: inline-block;
  padding: 2px 8px;
  font-size: 12px;
  font-weight: 700;
  background-color: var(--cinnabar-wash);
  color: var(--cinnabar-deep);
  border: 1px solid var(--cinnabar);
  border-radius: var(--radius-sm);
}

.degraded-tag--soft {
  background-color: var(--taupe-wash);
  color: var(--ink-secondary);
  border-color: var(--taupe-line);
}

.degraded-card h4 {
  margin: 8px 0 6px;
  font-family: var(--font-serif);
  font-size: 16.5px;
  line-height: 1.4;
}

.degraded-card p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--ink-secondary);
}

/* ==========================================================================
   页脚（完整声明 + 核实状态说明 + 许可说明）
   ========================================================================== */
.site-footer {
  margin-top: 44px;
  padding: 24px 16px 94px; /* 移动端底部留白避让单手底栏 */
  border-top: 2px solid var(--ink);
  background-color: var(--paper-inset);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.footer-block h2,
.footer-block h3 {
  margin: 0 0 8px;
  font-family: var(--font-serif);
  font-size: 17px;
}

.footer-block p {
  margin: 0 0 10px;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--ink-secondary);
}

.footer-block code {
  font-family: var(--font-mono);
  font-size: 13px;
  background-color: var(--paper-bright);
  padding: 1px 5px;
  border: 1px solid var(--taupe-hairline);
}

.footer-colophon {
  margin-top: 18px;
  padding-top: 12px;
  border-top: 1px solid var(--taupe-line);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 8px;
  font-size: 13px;
  color: var(--ink-muted);
}

/* ==========================================================================
   移动端单手操作底栏（仅 <768px 显示）
   ========================================================================== */
.mobile-dock {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 50;
  background-color: var(--paper-bright);
  border-top: 1.5px solid var(--ink);
  padding: 8px 12px;
  display: flex;
  align-items: center;
  gap: 10px;
  box-shadow: 0 -2px 8px rgba(30, 28, 26, 0.12);
}

.dock-btn {
  min-height: var(--touch-min);
  padding: 8px 12px;
  border: 1px solid var(--ink);
  background-color: var(--paper);
  color: var(--ink);
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 1 1 0;
  cursor: pointer;
  border-radius: var(--radius-sm);
}

.dock-btn--primary {
  background-color: var(--ink);
  color: var(--paper-bright);
  flex: 1.35 1 0;
}

/* ==========================================================================
   来源抽屉 & 移动端单手草稿板底部抽屉
   ========================================================================== */
.drawer-overlay {
  position: fixed;
  inset: 0;
  z-index: 120;
  display: flex;
  justify-content: flex-end;
  align-items: flex-end;
}

.drawer-backdrop {
  position: absolute;
  inset: 0;
  background-color: rgba(30, 28, 26, 0.48);
}

.drawer-panel {
  position: relative;
  z-index: 1;
  width: 100%;
  max-height: 85vh;
  overflow-y: auto;
  background-color: var(--paper-bright);
  border-top: 2px solid var(--ink);
  padding: 12px 16px 24px;
  box-shadow: 0 -6px 20px rgba(30, 28, 26, 0.22);
}

.sheet-handle {
  width: 44px;
  height: 4px;
  background-color: var(--taupe-line);
  border-radius: 2px;
  margin: 0 auto 12px;
}

.drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--taupe-hairline);
}

.drawer-close {
  min-height: var(--touch-min);
  min-width: 84px;
  padding: 8px 12px;
  border: 1px solid var(--ink);
  background-color: var(--paper);
  color: var(--ink);
  font-size: 13.5px;
  font-weight: 700;
  cursor: pointer;
  border-radius: var(--radius-sm);
}

.drawer-close:hover {
  background-color: var(--ink);
  color: var(--paper-bright);
}

.drawer-title {
  margin: 14px 0 12px;
  font-family: var(--font-serif);
  font-size: 20px;
  line-height: 1.38;
}

.drawer-content {
  display: flex;
  flex-direction: column;
  gap: 12px;
  font-size: 15.5px;
  line-height: 1.72;
  color: var(--ink-secondary);
}

.drawer-field {
  padding: 10px 12px;
  background-color: var(--paper);
  border: 1px solid var(--taupe-hairline);
}

.drawer-field-label {
  display: block;
  margin-bottom: 4px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--ink-muted);
}

.drawer-field-value {
  margin: 0;
  word-break: break-word;
}

.drawer-footer {
  margin-top: 18px;
  padding-top: 14px;
  border-top: 1px solid var(--taupe-hairline);
}

.sheet-local-hint {
  margin: 8px 0 12px;
  padding: 8px 10px;
  background-color: var(--sage-wash);
  border-left: 3px solid var(--sage-ink);
  font-size: 13.5px;
  color: var(--ink);
}

/* ==========================================================================
   平板断点 >= 768px
   ========================================================================== */
@media (min-width: 768px) {
  body {
    font-size: 16.5px;
  }

  /* 桌面与平板顶部声明条常驻完整展示两句，隐藏折叠按钮 */
  .disclaimer-inner {
    padding: 10px 24px;
    align-items: center;
  }

  .disclaimer-lead {
    white-space: normal;
    overflow: visible;
    font-size: 14px;
  }

  .disclaimer-extra {
    display: block;
    font-size: 13.5px;
  }

  .disclaimer-toggle {
    display: none;
  }

  .disclaimer-bar:not(.is-expanded) .disclaimer-jump {
    display: inline-flex;
  }

  .page-frame {
    padding: 24px 24px 48px;
  }

  section[id],
  #main-content {
    scroll-margin-top: 124px;
  }

  .cover-spread {
    padding: 28px;
  }

  .toc-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .cover-grid {
    grid-template-columns: 1.25fr 1fr;
    gap: 22px;
  }

  .section-header {
    grid-template-columns: 180px minmax(0, 1fr);
    gap: 20px;
    align-items: baseline;
  }

  .section-num-wrap {
    flex-direction: column;
    gap: 4px;
  }

  .facets-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .source-summary-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .degraded-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  /* 720px+ 恢复规整桌面表格排版 */
  .table-scroll {
    overflow-x: auto;
    border: 1px solid var(--ink);
  }

  .sources-table thead {
    display: table-header-group;
  }

  .sources-table tbody {
    display: table-row-group;
  }

  .sources-table tr {
    display: table-row;
    border: none;
    margin: 0;
    padding: 0;
  }

  .sources-table th,
  .sources-table td {
    display: table-cell;
    width: auto;
    padding: 11px 12px;
    border-bottom: 1px solid var(--taupe-hairline);
    border-right: 1px solid var(--taupe-hairline);
    vertical-align: top;
  }

  .sources-table th {
    background-color: var(--paper-inset);
    font-family: var(--font-serif);
    font-size: 14px;
    font-weight: 700;
    text-align: left;
    border-bottom: 1.5px solid var(--ink);
  }

  .sources-table td::before {
    display: none;
  }

  .footer-grid {
    grid-template-columns: 1.5fr 1fr 1fr;
    gap: 24px;
  }

  .site-footer {
    padding: 28px 24px 32px;
  }

  .mobile-dock {
    display: none;
  }

  /* 平板与桌面：来源抽屉改为右侧滑出抽屉 */
  .drawer-overlay {
    align-items: stretch;
  }

  .drawer-panel {
    width: min(520px, 92vw);
    max-height: none;
    height: 100%;
    border-top: none;
    border-left: 2px solid var(--ink);
    padding: 20px 24px 32px;
    box-shadow: -8px 0 24px rgba(30, 28, 26, 0.2);
  }

  .sheet-handle {
    display: none;
  }
}

/* ==========================================================================
   桌面断点 >= 1024px（非对称杂志双栏封面与方位对照）
   ========================================================================== */
@media (min-width: 1024px) {
  .cover-spread {
    display: grid;
    grid-template-columns: 230px minmax(0, 1fr);
    gap: 28px;
    padding: 32px;
  }

  .folio-rail {
    border-bottom: none;
    border-right: 1px solid var(--taupe-hairline);
    padding-bottom: 0;
    padding-right: 22px;
    margin-bottom: 0;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
  }

  .vertical-motto {
    display: block;
    margin: 20px auto;
    padding: 12px 6px;
    writing-mode: vertical-rl;
    text-orientation: upright;
    font-family: var(--font-serif);
    font-size: 14px;
    letter-spacing: 0.22em;
    color: var(--ink-muted);
    border-left: 1px solid var(--taupe-hairline);
    border-right: 1px solid var(--taupe-hairline);
  }

  .toc-list {
    grid-template-columns: 1fr;
  }

  .orientation-layout {
    grid-template-columns: 1fr 1.08fr;
    gap: 24px;
  }

  .schematic-map-card {
    position: sticky;
    top: 108px;
  }

  .facets-toolbar {
    flex-direction: row;
    justify-content: space-between;
    align-items: flex-end;
    padding: 16px 18px;
  }
}

@media (min-width: 1160px) {
  .facets-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

/* ==========================================================================
   动效减弱偏好支持（prefers-reduced-motion）
   ========================================================================== */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }
}