/* ==========================================================================
   午夜TV · aduma.cn 全站样式
   结构：base → layout → components → pages → responsive
   ========================================================================== */

/* ==========================================================================
   base
   ========================================================================== */

:root {
  --color-bg: #f5f2ea;
  --color-ink: #1a1a1a;
  --color-muted: #5c5c5c;
  --color-accent: #b5341f;
  --color-line: #d8d4c8;
  --color-surface: #fbf9f4;
  --font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", system-ui, sans-serif;
  --font-mono: "SFMono-Regular", "JetBrains Mono", "DejaVu Sans Mono", Consolas, "Courier New", monospace;
  --wrap: 1160px;
  --gap: 24px;
  --radius: 6px;
  --rule: 2px solid var(--color-ink);
  --rule-thin: 1px solid var(--color-line);
}

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

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

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-ink);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.8;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

h1,
h2,
h3,
h4 {
  margin: 0;
  line-height: 1.3;
  font-weight: 700;
  letter-spacing: normal;
}

p {
  margin: 0;
}

ul,
ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

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

a:hover,
a:focus-visible {
  color: var(--color-accent);
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 3px;
}

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

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

figure {
  margin: 0;
}

table {
  border-collapse: collapse;
  width: 100%;
}

button {
  font: inherit;
  color: inherit;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  border: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
}

/* ==========================================================================
   layout · 全站骨架
   ========================================================================== */

.site-body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  background: var(--color-bg);
  color: var(--color-ink);
  font-family: var(--font-sans);
}

/* --- 页头 --- */

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

.header-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 20px;
  width: 100%;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 14px 24px;
}

.brand {
  flex: 0 0 auto;
  font-size: 22px;
  font-weight: 800;
  line-height: 1.2;
  color: var(--color-ink);
  border-bottom: 3px solid var(--color-accent);
  padding-bottom: 2px;
}

.brand:hover,
.brand:focus-visible {
  color: var(--color-accent);
  text-decoration: none;
}

/* --- 导航 --- */

.site-nav {
  flex: 1 1 auto;
  min-width: 0;
}

.nav-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
  gap: 4px 18px;
}

.nav-list li {
  flex: 0 0 auto;
}

.nav-list a {
  display: inline-block;
  padding: 6px 2px;
  font-size: 15px;
  line-height: 1.4;
  border-bottom: 2px solid transparent;
}

.nav-list a:hover,
.nav-list a:focus-visible {
  border-bottom-color: var(--color-ink);
  text-decoration: none;
}

.nav-list a.is-current {
  color: var(--color-accent);
  border-bottom-color: var(--color-accent);
  font-weight: 700;
}

.nav-toggle {
  display: none;
  align-items: center;
  gap: 8px;
  min-height: 44px;
  padding: 8px 12px;
  background: var(--color-surface);
  border: var(--rule);
  border-radius: var(--radius);
  cursor: pointer;
}

.nav-toggle-bar {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--color-ink);
  box-shadow: 0 6px 0 var(--color-ink), 0 -6px 0 var(--color-ink);
}

.nav-toggle-text {
  font-size: 14px;
  font-weight: 700;
}

/* --- 主区域 --- */

.site-main {
  flex: 1 1 auto;
  width: 100%;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 24px 56px;
}

.home-main {
  padding-top: 32px;
}

.inner-main {
  padding-top: 20px;
}

/* --- 面包屑 --- */

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: 12px 0;
  font-size: 14px;
  color: var(--color-muted);
}

.breadcrumb a {
  color: var(--color-muted);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

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

.breadcrumb-sep {
  color: var(--color-line);
}

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

/* --- 页面标题区 --- */

.page-header {
  padding: 8px 0 28px;
  border-bottom: var(--rule);
  margin-bottom: 36px;
}

.page-title {
  font-size: 34px;
  font-weight: 800;
  line-height: 1.25;
  color: var(--color-ink);
}

.page-description {
  max-width: 780px;
  margin-top: 12px;
  font-size: 16px;
  line-height: 1.8;
  color: var(--color-muted);
}

/* --- 页脚 --- */

.site-footer {
  margin-top: auto;
  background: var(--color-bg);
  border-top: var(--rule);
}

.footer-inner {
  display: grid;
  grid-template-columns: minmax(220px, 1.6fr) repeat(3, minmax(140px, 1fr));
  gap: 28px 32px;
  width: 100%;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 40px 24px 28px;
}

.footer-brand-name {
  font-size: 20px;
  font-weight: 800;
  line-height: 1.3;
}

.footer-brand-desc {
  margin-top: 10px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--color-muted);
}

.footer-group-title {
  font-size: 15px;
  font-weight: 700;
  padding-bottom: 8px;
  margin-bottom: 12px;
  border-bottom: var(--rule-thin);
}

.footer-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer-list a {
  font-size: 14px;
  line-height: 1.6;
  color: var(--color-muted);
}

.footer-list a:hover,
.footer-list a:focus-visible {
  color: var(--color-accent);
}

.footer-boundary {
  grid-column: 1 / -1;
  max-width: 900px;
}

.footer-boundary p {
  font-size: 13px;
  line-height: 1.8;
  color: var(--color-muted);
}

.footer-copy {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 16px 24px 28px;
  border-top: var(--rule-thin);
  font-size: 13px;
  color: var(--color-muted);
}

/* ==========================================================================
   components · 通用模块
   ========================================================================== */

.section-title {
  font-size: 24px;
  font-weight: 800;
  line-height: 1.3;
}

.section-intro,
.section-lead,
.section-desc {
  max-width: 820px;
  margin-top: 10px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--color-muted);
}

.section-foot {
  margin-top: 20px;
  font-size: 15px;
}

.section-foot a + a {
  margin-left: 18px;
}

.more-link {
  display: inline-block;
  margin-top: 20px;
  font-size: 15px;
  font-weight: 700;
  color: var(--color-accent);
  border-bottom: 2px solid var(--color-accent);
  padding-bottom: 2px;
}

.more-link:hover,
.more-link:focus-visible {
  color: var(--color-ink);
  border-bottom-color: var(--color-ink);
  text-decoration: none;
}

.action-link {
  display: inline-block;
  margin-top: 18px;
  padding: 12px 22px;
  min-height: 44px;
  background: var(--color-accent);
  color: #fdfaf4;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.4;
  border: 2px solid var(--color-accent);
  border-radius: var(--radius);
}

.action-link:hover,
.action-link:focus-visible {
  background: var(--color-ink);
  border-color: var(--color-ink);
  color: #fdfaf4;
  text-decoration: none;
}

.field-label {
  display: inline-block;
  margin-right: 8px;
  padding: 1px 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  line-height: 1.6;
  color: var(--color-ink);
  background: var(--color-surface);
  border: 1px solid var(--color-ink);
  border-radius: 4px;
}

/* --- 表格 --- */

.table-scroll {
  width: 100%;
  margin-top: 20px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.field-table,
.data-table,
.map-table {
  min-width: 560px;
  font-size: 15px;
  border: var(--rule);
  background: var(--color-surface);
}

.field-table caption,
.data-table caption,
.map-caption {
  padding: 10px 14px;
  font-size: 14px;
  font-weight: 700;
  text-align: left;
  color: var(--color-ink);
  border-bottom: var(--rule-thin);
}

.field-table th,
.field-table td,
.data-table th,
.data-table td,
.map-table th,
.map-table td {
  padding: 12px 14px;
  text-align: left;
  vertical-align: top;
  line-height: 1.7;
  border-bottom: var(--rule-thin);
  border-right: var(--rule-thin);
}

.field-table th:last-child,
.field-table td:last-child,
.data-table th:last-child,
.data-table td:last-child,
.map-table th:last-child,
.map-table td:last-child {
  border-right: 0;
}

.field-table thead th,
.data-table thead th,
.map-table thead th {
  font-size: 14px;
  font-weight: 700;
  background: var(--color-bg);
  border-bottom: var(--rule);
}

.field-table tbody th,
.data-table tbody th,
.map-table tbody th {
  width: 22%;
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
  background: var(--color-bg);
}

.field-table tbody tr:last-child th,
.field-table tbody tr:last-child td,
.data-table tbody tr:last-child th,
.data-table tbody tr:last-child td,
.map-table tbody tr:last-child th,
.map-table tbody tr:last-child td {
  border-bottom: 0;
}

.table-note {
  margin-top: 14px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--color-muted);
}

/* --- 图片容器 --- */

.hero-media,
.content-media,
.channel-figure,
.special-figure,
.field-figure,
.guide-figure,
.scope-figure {
  display: block;
  width: 100%;
  background: var(--color-surface);
  border: var(--rule);
  border-radius: var(--radius);
  overflow: hidden;
}

.hero-media img,
.content-media img,
.channel-figure img,
.special-figure img,
.field-figure img,
.guide-figure img,
.scope-figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  background: var(--color-surface);
}

.hero-media figcaption,
.content-media figcaption,
.channel-figure figcaption,
.special-figure figcaption,
.field-figure figcaption,
.guide-figure figcaption,
.scope-figure figcaption {
  padding: 10px 14px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--color-muted);
  border-top: var(--rule-thin);
}

/* ==========================================================================
   pages · 首页
   ========================================================================== */

/* --- 头条区 --- */

.hero-section {
  display: grid;
  grid-template-columns: minmax(0, 1.65fr) minmax(0, 1fr);
  gap: 28px;
  padding-bottom: 40px;
  border-bottom: var(--rule);
}

.hero-lead {
  min-width: 0;
}

.hero-kicker {
  display: inline-block;
  padding: 3px 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  line-height: 1.6;
  color: var(--color-accent);
  border: 1px solid var(--color-accent);
  border-radius: 4px;
}

.hero-title {
  margin-top: 14px;
  font-size: 40px;
  font-weight: 800;
  line-height: 1.2;
}

.hero-meta {
  margin-top: 10px;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-muted);
}

.hero-desc {
  margin-top: 12px;
  max-width: 640px;
  font-size: 16px;
  line-height: 1.8;
}

.hero-media {
  margin-top: 20px;
}

.hero-media img {
  aspect-ratio: 16 / 9;
}

.hero-side {
  display: flex;
  flex-direction: column;
  gap: 20px;
  min-width: 0;
}

.hero-side-item {
  padding: 18px 20px;
  background: var(--color-surface);
  border: var(--rule);
  border-radius: var(--radius);
}

.hero-side-title {
  font-size: 19px;
  font-weight: 700;
  line-height: 1.35;
}

.hero-side-meta {
  margin-top: 8px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--color-accent);
}

.hero-side-desc {
  margin-top: 8px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--color-muted);
}

.content-media {
  grid-column: 1 / -1;
}

.content-media-primary img {
  aspect-ratio: 21 / 9;
}

/* --- 频道总览 --- */

.channel-overview {
  padding: 40px 0;
  border-bottom: var(--rule);
}

.channel-list {
  margin-top: 22px;
  border-top: var(--rule);
}

.channel-row {
  display: grid;
  grid-template-columns: minmax(150px, 0.9fr) minmax(0, 1.6fr) minmax(0, 1.2fr) auto;
  align-items: baseline;
  gap: 8px 20px;
  padding: 16px 4px;
  border-bottom: var(--rule-thin);
}

.channel-row:hover {
  background: var(--color-surface);
}

.channel-name {
  font-size: 18px;
  font-weight: 700;
}

.channel-trend {
  font-size: 15px;
  line-height: 1.7;
}

.channel-audience {
  font-size: 14px;
  line-height: 1.7;
  color: var(--color-muted);
}

.row-link {
  font-size: 14px;
  font-weight: 700;
  color: var(--color-accent);
  white-space: nowrap;
}

.row-link:hover,
.row-link:focus-visible {
  color: var(--color-ink);
}

/* --- 专题速览 --- */

.special-list {
  padding: 40px 0;
  border-bottom: var(--rule);
}

.special-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
  margin-top: 22px;
}

.special-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 20px;
  background: var(--color-surface);
  border: var(--rule);
  border-radius: var(--radius);
}

.special-name {
  font-size: 19px;
  font-weight: 700;
  line-height: 1.35;
}

.special-scope {
  font-size: 14px;
  line-height: 1.8;
  color: var(--color-muted);
}

.special-org {
  font-size: 14px;
  line-height: 1.8;
  color: var(--color-muted);
  padding-top: 10px;
  border-top: var(--rule-thin);
}

/* --- 字段与边界摘要 --- */

.field-summary {
  padding: 40px 0;
  border-bottom: var(--rule);
}

.field-summary-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.7fr) minmax(260px, 1fr);
  gap: 28px;
  align-items: start;
  margin-top: 22px;
}

.field-summary-layout .field-table {
  min-width: 480px;
  margin-top: 0;
}

.boundary-brief {
  padding: 20px;
  background: var(--color-surface);
  border: var(--rule);
  border-radius: var(--radius);
}

.boundary-brief-title {
  font-size: 18px;
  font-weight: 700;
  line-height: 1.35;
}

.boundary-brief p {
  margin-top: 10px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--color-muted);
}

.boundary-brief-list {
  margin-top: 14px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.boundary-brief-list li {
  padding-left: 16px;
  position: relative;
  font-size: 14px;
  line-height: 1.75;
}

.boundary-brief-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 11px;
  width: 6px;
  height: 6px;
  background: var(--color-accent);
}

.boundary-brief .more-link {
  font-size: 14px;
}

/* --- 观看路径 --- */

.path-steps {
  padding: 40px 0;
  border-bottom: var(--rule);
}

.step-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
  margin-top: 22px;
  counter-reset: step;
}

.step-item {
  padding: 20px;
  background: var(--color-surface);
  border: var(--rule);
  border-radius: var(--radius);
}

.path-steps .step-name {
  font-size: 18px;
  font-weight: 700;
  line-height: 1.35;
}

.path-steps .step-basis {
  margin-top: 10px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--color-muted);
}

/* --- 更新记录 --- */

.update-log {
  padding: 40px 0 8px;
}

.update-list {
  margin-top: 22px;
  border-top: var(--rule);
}

.update-row {
  display: grid;
  grid-template-columns: 130px 130px minmax(0, 1fr);
  gap: 6px 20px;
  padding: 14px 4px;
  border-bottom: var(--rule-thin);
  font-size: 14px;
  line-height: 1.7;
}

.update-time {
  font-family: var(--font-mono);
  color: var(--color-muted);
}

.update-type {
  font-weight: 700;
  color: var(--color-accent);
}

.update-target {
  color: var(--color-ink);
}

.update-note {
  margin-top: 16px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--color-muted);
}

/* --- 相关内容条 --- */

.related-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 18px;
  margin-top: 32px;
  padding: 18px 20px;
  background: var(--color-surface);
  border: var(--rule);
  border-radius: var(--radius);
}

.related-links-label {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--color-muted);
}

.related-links-item {
  font-size: 14px;
  font-weight: 700;
  color: var(--color-accent);
}

.related-links-item:hover,
.related-links-item:focus-visible {
  color: var(--color-ink);
}

/* ==========================================================================
   pages · 题材频道
   ========================================================================== */

.page-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 260px;
  gap: 36px;
  align-items: start;
}

.sidebar-left .page-layout {
  grid-template-columns: 260px minmax(0, 1fr);
}

.channel-index {
  padding: 20px;
  background: var(--color-surface);
  border: var(--rule);
  border-radius: var(--radius);
}

.sidebar-left .channel-index {
  order: -1;
}

.aside-title {
  font-size: 16px;
  font-weight: 700;
  padding-bottom: 8px;
  border-bottom: var(--rule-thin);
}

.aside-note {
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.75;
  color: var(--color-muted);
}

.channel-index-list {
  margin-top: 14px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.channel-index-list a {
  display: block;
  min-height: 44px;
  padding: 10px 12px;
  font-size: 14px;
  line-height: 1.6;
  border: 1px solid var(--color-line);
  border-radius: 4px;
  background: var(--color-bg);
}

.channel-index-list a:hover,
.channel-index-list a:focus-visible {
  border-color: var(--color-accent);
  color: var(--color-accent);
  text-decoration: none;
}

.content-column {
  min-width: 0;
}

.section + .section {
  margin-top: 44px;
}

.channel-detail {
  margin-top: 22px;
  padding: 22px;
  background: var(--color-surface);
  border: var(--rule);
  border-radius: var(--radius);
}

.channel-detail-head {
  display: flex;
  align-items: baseline;
  gap: 12px;
}

.channel-no {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
  color: var(--color-accent);
}

.channel-detail .channel-name {
  font-size: 20px;
  font-weight: 700;
}

.channel-figure {
  margin-top: 16px;
}

.channel-figure img {
  aspect-ratio: 16 / 9;
}

.channel-facts {
  display: grid;
  grid-template-columns: 110px minmax(0, 1fr);
  gap: 8px 18px;
  margin: 18px 0 0;
  font-size: 14px;
  line-height: 1.8;
}

.channel-facts dt {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--color-ink);
}

.channel-facts dd {
  margin: 0;
  color: var(--color-muted);
}

.channel-map-table tbody th {
  width: 30%;
}

.advice-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
  margin-top: 22px;
}

.advice-item {
  padding: 20px;
  background: var(--color-surface);
  border: var(--rule);
  border-radius: var(--radius);
}

.advice-title {
  font-size: 17px;
  font-weight: 700;
  line-height: 1.35;
}

.advice-item p {
  margin-top: 10px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--color-muted);
}

/* ==========================================================================
   pages · 专题片单
   ========================================================================== */

.special-list-section,
.special-structure-section,
.special-channel-map-section {
  padding: 0 0 40px;
}

.special-list-section .special-list {
  display: flex;
  flex-direction: column;
  gap: 22px;
  margin-top: 24px;
  padding: 0;
  border-bottom: 0;
}

.special-item {
  display: grid;
  grid-template-columns: minmax(0, 320px) minmax(0, 1fr);
  gap: 24px;
  padding: 22px;
  background: var(--color-surface);
  border: var(--rule);
  border-radius: var(--radius);
}

.special-media {
  min-width: 0;
}

.special-figure {
  height: 100%;
}

.special-figure img {
  aspect-ratio: 4 / 3;
}

.special-body {
  min-width: 0;
}

.special-body .special-name {
  font-size: 20px;
  font-weight: 700;
}

.special-channel {
  margin-top: 8px;
  font-size: 14px;
  color: var(--color-muted);
}

.special-channel a {
  color: var(--color-accent);
  font-weight: 700;
}

.special-body .special-scope,
.special-body .special-organize {
  margin-top: 12px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--color-muted);
}

.special-body .special-organize {
  padding-top: 12px;
  border-top: var(--rule-thin);
}

.structure-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
  margin-top: 22px;
}

.structure-item {
  padding: 20px;
  background: var(--color-surface);
  border: var(--rule);
  border-radius: var(--radius);
}

.structure-name {
  font-size: 17px;
  font-weight: 700;
  line-height: 1.35;
}

.structure-item p {
  margin-top: 10px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--color-muted);
}

.map-table {
  margin-top: 22px;
}

.map-table tbody th {
  width: 34%;
}

.map-table tbody th a {
  color: var(--color-accent);
}

.map-note {
  margin-top: 14px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--color-muted);
}

.map-note a {
  color: var(--color-accent);
  font-weight: 700;
}

/* ==========================================================================
   pages · 条目字段说明
   ========================================================================== */

.field-table-section,
.field-reading,
.field-relation,
.field-links {
  padding: 0 0 40px;
}

.field-figure {
  margin-top: 20px;
}

.field-figure img {
  aspect-ratio: 21 / 9;
}

.field-table-section .field-table {
  margin-top: 20px;
}

.reading-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-top: 22px;
  counter-reset: reading;
}

.reading-item {
  position: relative;
  padding: 18px 20px 18px 62px;
  background: var(--color-surface);
  border: var(--rule);
  border-radius: var(--radius);
  counter-increment: reading;
}

.reading-item::before {
  content: counter(reading, decimal-leading-zero);
  position: absolute;
  left: 20px;
  top: 18px;
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 700;
  color: var(--color-accent);
}

.reading-name {
  font-size: 17px;
  font-weight: 700;
  line-height: 1.35;
}

.reading-item p {
  margin-top: 8px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--color-muted);
}

.relation-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
  margin-top: 22px;
}

.relation-card {
  padding: 20px;
  background: var(--color-surface);
  border: var(--rule);
  border-radius: var(--radius);
}

.relation-name {
  font-size: 17px;
  font-weight: 700;
  line-height: 1.35;
}

.relation-card p {
  margin-top: 10px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--color-muted);
}

.relation-card a {
  color: var(--color-accent);
  font-weight: 700;
}

.relation-note {
  margin-top: 16px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--color-muted);
}

.relation-note a {
  color: var(--color-accent);
  font-weight: 700;
}

.link-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 12px;
  margin-top: 20px;
}

.link-item a {
  display: block;
  min-height: 44px;
  padding: 12px 16px;
  font-size: 14px;
  font-weight: 600;
  line-height: 1.6;
  background: var(--color-surface);
  border: var(--rule);
  border-radius: var(--radius);
}

.link-item a:hover,
.link-item a:focus-visible {
  color: var(--color-accent);
  border-color: var(--color-accent);
  text-decoration: none;
}

/* ==========================================================================
   pages · 观看指南
   ========================================================================== */

.guide-figure {
  margin-bottom: 36px;
}

.guide-figure img {
  aspect-ratio: 21 / 9;
}

.guide-steps,
.entry-modes,
.guide-faq,
.guide-related {
  padding: 0 0 40px;
}

.guide-steps .step-list {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.guide-steps .step-item {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.guide-steps .step-index {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--color-accent);
}

.guide-steps .step-name {
  font-size: 18px;
  font-weight: 700;
  line-height: 1.35;
}

.guide-steps .step-do,
.guide-steps .step-judge {
  font-size: 14px;
  line-height: 1.8;
  color: var(--color-muted);
}

.guide-steps .step-do strong {
  color: var(--color-ink);
}

.guide-steps .step-judge {
  padding-top: 8px;
  border-top: var(--rule-thin);
}

.mode-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
  margin-top: 22px;
}

.mode-card {
  padding: 20px;
  background: var(--color-surface);
  border: var(--rule);
  border-radius: var(--radius);
}

.mode-name {
  font-size: 17px;
  font-weight: 700;
  line-height: 1.35;
}

.mode-scene,
.mode-action {
  margin-top: 10px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--color-muted);
}

.mode-action {
  padding-top: 10px;
  border-top: var(--rule-thin);
}

.faq-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 22px;
}

.faq-item {
  background: var(--color-surface);
  border: var(--rule);
  border-radius: var(--radius);
}

.faq-question {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 44px;
  padding: 14px 18px;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.5;
  cursor: pointer;
  list-style: none;
}

.faq-question::-webkit-details-marker {
  display: none;
}

.faq-question::before {
  content: "+";
  flex: 0 0 auto;
  width: 20px;
  font-family: var(--font-mono);
  font-size: 17px;
  font-weight: 700;
  color: var(--color-accent);
  text-align: center;
}

.faq-item[open] .faq-question::before {
  content: "−";
}

.faq-question:hover {
  color: var(--color-accent);
}

.faq-answer {
  padding: 14px 18px 16px 48px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--color-muted);
  border-top: var(--rule-thin);
}

.faq-answer a {
  color: var(--color-accent);
  font-weight: 700;
}

.faq-more {
  margin-top: 16px;
  font-size: 14px;
}

.faq-more a {
  color: var(--color-accent);
  font-weight: 700;
}

.related-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 12px;
  margin-top: 20px;
}

.related-list a {
  display: block;
  min-height: 44px;
  padding: 12px 16px;
  font-size: 14px;
  font-weight: 600;
  line-height: 1.6;
  background: var(--color-surface);
  border: var(--rule);
  border-radius: var(--radius);
}

.related-list a:hover,
.related-list a:focus-visible {
  color: var(--color-accent);
  border-color: var(--color-accent);
  text-decoration: none;
}

/* ==========================================================================
   pages · 收录边界与反馈
   ========================================================================== */

.scope-compare,
.exclude-reason,
.correction-path {
  padding: 0 0 40px;
}

.scope-figure {
  margin-top: 20px;
}

.scope-figure img {
  aspect-ratio: 21 / 9;
}

.scope-columns {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
  margin-top: 24px;
}

.scope-column {
  padding: 22px;
  background: var(--color-surface);
  border: var(--rule);
  border-radius: var(--radius);
}

.scope-column-title {
  font-size: 18px;
  font-weight: 700;
  padding-bottom: 10px;
  border-bottom: var(--rule-thin);
}

.scope-include .scope-column-title {
  color: var(--color-ink);
}

.scope-exclude .scope-column-title {
  color: var(--color-accent);
}

.scope-list {
  margin-top: 14px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.scope-item {
  position: relative;
  padding-left: 20px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--color-muted);
}

.scope-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 11px;
  width: 8px;
  height: 2px;
  background: var(--color-ink);
}

.scope-exclude .scope-item::before {
  background: var(--color-accent);
}

.reason-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
  margin-top: 22px;
}

.reason-item {
  padding: 20px;
  background: var(--color-surface);
  border: var(--rule);
  border-radius: var(--radius);
}

.reason-title {
  font-size: 17px;
  font-weight: 700;
  line-height: 1.35;
}

.reason-text {
  margin-top: 10px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--color-muted);
}

.correction-steps {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-top: 22px;
  counter-reset: correction;
}

.correction-step {
  position: relative;
  padding: 18px 20px 18px 62px;
  background: var(--color-surface);
  border: var(--rule);
  border-radius: var(--radius);
  counter-increment: correction;
}

.correction-step::before {
  content: counter(correction, decimal-leading-zero);
  position: absolute;
  left: 20px;
  top: 18px;
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 700;
  color: var(--color-accent);
}

.correction-step-title {
  font-size: 17px;
  font-weight: 700;
  line-height: 1.35;
}

.correction-step-text {
  margin-top: 8px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--color-muted);
}

.correction-step-text a {
  color: var(--color-accent);
  font-weight: 700;
}

.correction-note {
  margin-top: 16px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--color-muted);
}

.correction-note a {
  color: var(--color-accent);
  font-weight: 700;
}

/* ==========================================================================
   pages · 404
   ========================================================================== */

.error-main {
  display: flex;
  align-items: center;
  justify-content: center;
  padding-top: 60px;
  padding-bottom: 80px;
}

.error-inner {
  width: 100%;
  max-width: 640px;
  padding: 32px;
  background: var(--color-surface);
  border: var(--rule);
  border-radius: var(--radius);
}

.error-code {
  font-family: var(--font-mono);
  font-size: 44px;
  font-weight: 800;
  line-height: 1;
  color: var(--color-accent);
}

.error-inner h1 {
  margin-top: 14px;
  font-size: 26px;
  font-weight: 800;
  line-height: 1.3;
}

.error-lead {
  margin-top: 12px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--color-muted);
}

.error-links {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 12px;
  margin-top: 22px;
}

.error-links a {
  display: block;
  min-height: 44px;
  padding: 12px 16px;
  font-size: 14px;
  font-weight: 600;
  line-height: 1.6;
  background: var(--color-bg);
  border: var(--rule);
  border-radius: var(--radius);
}

.error-links a:hover,
.error-links a:focus-visible {
  color: var(--color-accent);
  border-color: var(--color-accent);
  text-decoration: none;
}

.error-note {
  margin-top: 20px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--color-muted);
}

.error-note a {
  color: var(--color-accent);
  font-weight: 700;
}

/* ==========================================================================
   responsive
   ========================================================================== */

@media (max-width: 1024px) {
  .hero-section {
    grid-template-columns: minmax(0, 1fr);
    gap: 24px;
  }

  .hero-title {
    font-size: 34px;
  }

  .content-media-primary img {
    aspect-ratio: 16 / 9;
  }

  .channel-row {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.4fr);
  }

  .channel-row .row-link {
    grid-column: 1 / -1;
  }

  .field-summary-layout {
    grid-template-columns: minmax(0, 1fr);
  }

  .field-summary-layout .field-table {
    min-width: 0;
  }

  .page-layout,
  .sidebar-left .page-layout {
    grid-template-columns: minmax(0, 1fr);
    gap: 28px;
  }

  .sidebar-left .channel-index {
    order: 0;
  }

  .channel-index-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 8px;
  }

  .special-item {
    grid-template-columns: minmax(0, 260px) minmax(0, 1fr);
  }

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

@media (max-width: 720px) {
  body {
    font-size: 15px;
  }

  .header-inner {
    padding: 12px 16px;
    gap: 10px 12px;
  }

  .brand {
    font-size: 20px;
  }

  .nav-toggle {
    display: inline-flex;
    margin-left: auto;
  }

  .site-nav {
    flex: 1 1 100%;
    min-width: 0;
  }

  .nav-list {
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    margin-top: 4px;
    border-top: var(--rule-thin);
  }

  .nav-list.is-open {
    display: flex;
  }

  .nav-list li {
    border-bottom: var(--rule-thin);
  }

  .nav-list a {
    display: block;
    min-height: 44px;
    padding: 12px 4px;
    font-size: 15px;
    border-bottom: 0;
  }

  .nav-list a.is-current {
    border-bottom: 0;
  }

  .site-main {
    padding: 0 16px 44px;
  }

  .home-main {
    padding-top: 24px;
  }

  .inner-main {
    padding-top: 16px;
  }

  .page-header {
    padding: 6px 0 20px;
    margin-bottom: 26px;
  }

  .page-title {
    font-size: 25px;
  }

  .page-description {
    font-size: 15px;
  }

  .hero-title {
    font-size: 27px;
  }

  .hero-desc {
    font-size: 15px;
  }

  .section-title {
    font-size: 20px;
  }

  .channel-overview,
  .special-list,
  .field-summary,
  .path-steps,
  .update-log {
    padding-top: 30px;
    padding-bottom: 30px;
  }

  .channel-row {
    grid-template-columns: minmax(0, 1fr);
    gap: 6px;
  }

  .special-grid,
  .step-list,
  .guide-steps .step-list,
  .advice-list,
  .structure-list,
  .relation-grid,
  .mode-grid,
  .reason-list {
    grid-template-columns: minmax(0, 1fr);
  }

  .update-row {
    grid-template-columns: minmax(0, 1fr);
    gap: 4px;
  }

  .special-item {
    grid-template-columns: minmax(0, 1fr);
    gap: 18px;
    padding: 18px;
  }

  .special-figure {
    height: auto;
  }

  .channel-facts {
    grid-template-columns: minmax(0, 1fr);
    gap: 4px 0;
  }

  .channel-facts dt {
    margin-top: 8px;
  }

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

  .faq-answer {
    padding-left: 18px;
  }

  .reading-item,
  .correction-step {
    padding: 16px 16px 16px 52px;
  }

  .reading-item::before,
  .correction-step::before {
    left: 16px;
    top: 16px;
  }

  .error-inner {
    padding: 24px 20px;
  }

  .error-code {
    font-size: 36px;
  }

  .error-inner h1 {
    font-size: 22px;
  }

  .footer-inner {
    grid-template-columns: minmax(0, 1fr);
    gap: 24px;
    padding: 32px 16px 24px;
  }

  .footer-copy {
    padding: 14px 16px 24px;
  }
}