/* ==========================================================================
   光棍影院 · 51aimx.cn 全站样式
   分组：base / layout / components / pages / responsive
   ========================================================================== */

/* --------------------------------------------------------------------------
   base
   -------------------------------------------------------------------------- */

:root {
  --color-primary: #1b2a4a;
  --color-primary-soft: #2c3f66;
  --color-accent: #c2410c;
  --color-accent-soft: #ea580c;
  --color-text: #1f2937;
  --color-muted: #4b5563;
  --color-bg: #f7f8fa;
  --color-surface: #ffffff;
  --color-border: #d1d5db;
  --color-border-strong: #9ca3af;
  --color-focus: #c2410c;
  --font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --font-mono: "SFMono-Regular", Menlo, Consolas, "Liberation Mono", monospace;
  --radius-card: 6px;
  --radius-pill: 4px;
  --shadow-card: 0 1px 2px rgba(27, 42, 74, 0.06);
  --width-content: 1080px;
  --header-height: 64px;
}

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

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

body.site-body {
  margin: 0;
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: 16px;
  font-weight: 400;
  line-height: 1.7;
  text-rendering: optimizeLegibility;
}

h1,
h2,
h3,
h4 {
  margin: 0;
  color: var(--color-primary);
  font-weight: 700;
  line-height: 1.35;
}

p {
  margin: 0;
}

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

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

a {
  color: var(--color-primary);
  text-decoration: underline;
  text-decoration-color: var(--color-accent);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

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

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

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

figure {
  margin: 0;
}

figcaption {
  color: var(--color-muted);
  font-size: 13px;
  line-height: 1.6;
}

details summary {
  cursor: pointer;
  list-style: none;
}

details summary::-webkit-details-marker {
  display: none;
}

/* --------------------------------------------------------------------------
   layout · 全站骨架
   -------------------------------------------------------------------------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background-color: var(--color-primary);
  border-bottom: 1px solid #0f1b33;
}

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

.brand-logo {
  flex: 0 0 auto;
  color: #ffffff;
  font-size: 19px;
  font-weight: 700;
  text-decoration: none;
  letter-spacing: 0;
}

.brand-logo:hover,
.brand-logo:focus-visible {
  color: #ffffff;
  text-decoration: underline;
  text-decoration-color: var(--color-accent-soft);
  text-decoration-thickness: 2px;
}

.site-nav {
  flex: 1 1 auto;
  display: flex;
  justify-content: flex-end;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-link {
  display: block;
  padding: 8px 12px;
  color: #e5e7eb;
  font-size: 15px;
  text-decoration: none;
  border-radius: var(--radius-pill);
  border-left: 3px solid transparent;
  transition: background-color 0.15s ease, color 0.15s ease;
}

.nav-link:hover,
.nav-link:focus-visible {
  color: #ffffff;
  background-color: var(--color-primary-soft);
  text-decoration: underline;
  text-decoration-color: var(--color-accent-soft);
  text-decoration-thickness: 2px;
}

.nav-link.is-current {
  color: #ffffff;
  font-weight: 700;
  background-color: var(--color-primary-soft);
  border-left-color: var(--color-accent-soft);
}

.nav-toggle {
  display: none;
  flex: 0 0 auto;
  width: 44px;
  height: 44px;
  padding: 0;
  background-color: transparent;
  border: 1px solid #3d527d;
  border-radius: var(--radius-pill);
  cursor: pointer;
}

.nav-toggle-bar {
  display: block;
  width: 20px;
  height: 2px;
  margin: 4px auto;
  background-color: #e5e7eb;
}

.site-main {
  display: block;
}

.home-main,
.inner-main {
  width: 100%;
  max-width: var(--width-content);
  margin: 0 auto;
  padding: 0 20px 56px;
}

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

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

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

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

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

.breadcrumb-current {
  color: var(--color-primary);
  font-weight: 700;
}

.page-header {
  padding: 4px 0 22px;
  border-bottom: 2px solid var(--color-primary);
  margin-bottom: 28px;
}

.page-title {
  font-size: 34px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 12px;
}

.page-description {
  max-width: 72ch;
  color: var(--color-muted);
  font-size: 16px;
}

.site-footer {
  margin-top: 40px;
  background-color: var(--color-primary);
  color: #cbd5e1;
  font-size: 14px;
}

.footer-inner {
  display: grid;
  grid-template-columns: minmax(220px, 1.4fr) repeat(3, minmax(150px, 1fr));
  gap: 28px;
  width: 100%;
  max-width: var(--width-content);
  margin: 0 auto;
  padding: 36px 20px 26px;
}

.footer-brand {
  min-width: 0;
}

.footer-logo {
  color: #ffffff;
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 10px;
}

.footer-desc {
  color: #b6c2d6;
  line-height: 1.7;
}

.footer-col {
  min-width: 0;
}

.footer-col-title {
  color: #ffffff;
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid #3d527d;
}

.footer-list li {
  margin-bottom: 8px;
}

.footer-list a {
  color: #cbd5e1;
  text-decoration-color: #64748b;
}

.footer-list a:hover,
.footer-list a:focus-visible {
  color: #ffffff;
  text-decoration-color: var(--color-accent-soft);
}

.footer-bottom {
  border-top: 1px solid #3d527d;
}

.footer-boundary,
.footer-copy {
  width: 100%;
  max-width: var(--width-content);
  margin: 0 auto;
  padding: 0 20px;
  color: #9fb0cb;
  font-size: 13px;
  line-height: 1.7;
}

.footer-boundary {
  padding-top: 16px;
}

.footer-copy {
  padding-bottom: 22px;
}

/* --------------------------------------------------------------------------
   layout · 内页通用区块
   -------------------------------------------------------------------------- */

.section {
  margin-bottom: 40px;
}

.section-head {
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--color-border);
}

.section-title {
  font-size: 24px;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.section-desc {
  max-width: 72ch;
  color: var(--color-muted);
  font-size: 15px;
}

.section-intro {
  max-width: 72ch;
  margin-bottom: 20px;
  color: var(--color-muted);
  font-size: 15px;
}

.section-note,
.section-footnote {
  margin-top: 16px;
  color: var(--color-muted);
  font-size: 14px;
}

.section-footnote a {
  margin-right: 12px;
}

.two-column {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 24px;
}

.two-col-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 24px;
}

.column {
  min-width: 0;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 20px;
}

.column-title {
  font-size: 17px;
  color: var(--color-primary);
  margin-bottom: 14px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--color-border);
}

.col-block {
  min-width: 0;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 20px;
}

.col-title {
  font-size: 17px;
  color: var(--color-primary);
  margin-bottom: 14px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--color-border);
}

/* --------------------------------------------------------------------------
   components · 按钮与通用卡片
   -------------------------------------------------------------------------- */

.btn {
  display: inline-block;
  padding: 10px 18px;
  min-height: 44px;
  font-size: 15px;
  font-weight: 700;
  line-height: 24px;
  text-align: center;
  text-decoration: none;
  border-radius: var(--radius-pill);
  border: 1px solid transparent;
  transition: background-color 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}

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

.btn-primary:hover,
.btn-primary:focus-visible {
  background-color: var(--color-accent-soft);
  border-color: var(--color-accent-soft);
  color: #ffffff;
  text-decoration: underline;
  text-decoration-color: #ffffff;
  text-decoration-thickness: 2px;
}

.btn-ghost {
  background-color: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.btn-ghost:hover,
.btn-ghost:focus-visible {
  background-color: var(--color-primary);
  color: #ffffff;
  text-decoration: underline;
  text-decoration-color: #ffffff;
  text-decoration-thickness: 2px;
}

/* 表格：字段与数据表 */
.data-table,
.field-table {
  width: 100%;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  font-size: 15px;
}

.data-table th,
.data-table td,
.field-table th,
.field-table td {
  padding: 10px 12px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--color-border);
}

.data-table thead th,
.field-table thead th {
  background-color: #eef1f6;
  color: var(--color-primary);
  font-size: 14px;
  font-weight: 700;
  white-space: nowrap;
}

.field-table tbody th {
  color: var(--color-primary);
  font-weight: 700;
  white-space: nowrap;
}

.data-table tbody th {
  color: var(--color-primary);
  font-weight: 700;
}

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

.table-caption {
  padding: 0 0 10px;
  color: var(--color-muted);
  font-size: 14px;
  text-align: left;
}

/* figure 与图片容器统一约束 */
.hero-figure,
.playlist-cover,
.section-media,
.page-figure,
.guide-figure,
.record-figure {
  overflow: hidden;
  border-radius: var(--radius-card);
  background-color: #e5e8ee;
}

.hero-figure img,
.playlist-cover img,
.section-media img,
.page-figure img,
.guide-figure img,
.record-figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* 关联卡片（字段页、指引页共用） */
.related-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 18px;
}

.related-card {
  min-width: 0;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 18px;
}

.related-card h3 {
  margin-bottom: 8px;
  font-size: 16px;
}

.related-card p {
  color: var(--color-muted);
  font-size: 14px;
}

/* --------------------------------------------------------------------------
   pages · 首页
   -------------------------------------------------------------------------- */

/* 首屏结论区 */
.hero {
  padding: 36px 0 32px;
  border-bottom: 1px solid var(--color-border);
  margin-bottom: 40px;
}

.hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
  gap: 32px;
  align-items: start;
}

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

.hero-kicker {
  display: inline-block;
  margin-bottom: 14px;
  padding: 4px 10px;
  background-color: #eef1f6;
  border-left: 3px solid var(--color-accent);
  color: var(--color-primary);
  font-size: 13px;
  font-weight: 700;
}

.hero-title {
  font-size: 34px;
  color: var(--color-primary);
  margin-bottom: 16px;
}

.hero-summary {
  max-width: 62ch;
  margin-bottom: 14px;
  color: var(--color-text);
  font-size: 16px;
}

.hero-slogan {
  margin-bottom: 22px;
  color: var(--color-accent);
  font-size: 15px;
  font-weight: 700;
}

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

.hero-aside {
  min-width: 0;
  display: grid;
  gap: 20px;
}

.hero-figure img {
  aspect-ratio: 16 / 10;
}

.hero-figure figcaption {
  padding: 8px 2px 0;
}

.hero-index {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 18px;
}

.hero-index-title {
  font-size: 16px;
  color: var(--color-primary);
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--color-border);
}

.hero-index-list li {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 6px 0;
  border-bottom: 1px dashed var(--color-border);
  font-size: 14px;
  color: var(--color-muted);
}

.hero-index-list li:last-child {
  border-bottom: 0;
}

.hero-index-link {
  display: inline-block;
  margin-top: 12px;
  font-size: 14px;
  font-weight: 700;
}

/* 题材频道方向总览（首页） */
.channels-overview .channel-rows {
  display: grid;
  gap: 0;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
}

.channels-overview .channel-rows .channel-row {
  display: grid;
  grid-template-columns: 64px minmax(0, 1fr);
  gap: 16px;
  padding: 16px 18px;
  border-bottom: 1px solid var(--color-border);
}

.channels-overview .channel-rows .channel-row:last-child {
  border-bottom: 0;
}

.channels-overview .channel-rows .channel-no {
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 700;
  color: var(--color-accent);
}

.channels-overview .channel-body {
  min-width: 0;
}

.channels-overview .channel-rows .channel-name {
  font-size: 17px;
  color: var(--color-primary);
  margin-bottom: 6px;
}

.channels-overview .channel-cover {
  margin-bottom: 4px;
  color: var(--color-text);
  font-size: 14px;
}

.channels-overview .channel-scene {
  color: var(--color-muted);
  font-size: 14px;
}

/* 专题片单入口（首页） */
.playlist-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}

.playlists-entry .playlist-grid .playlist-card {
  min-width: 0;
  display: flex;
  flex-direction: column;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  overflow: hidden;
}

.playlists-entry .playlist-grid .playlist-cover img {
  aspect-ratio: 16 / 9;
}

.playlists-entry .playlist-body {
  min-width: 0;
  padding: 16px;
}

.playlists-entry .playlist-grid .playlist-name {
  font-size: 17px;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.playlists-entry .playlist-grid .playlist-theme {
  margin-bottom: 8px;
  color: var(--color-text);
  font-size: 14px;
}

.playlists-entry .playlist-grid .playlist-basis {
  color: var(--color-muted);
  font-size: 13px;
}

/* 浏览顺序四步（首页） */
.browse-steps .step-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 18px;
}

.browse-steps .step-list .step-item {
  min-width: 0;
  padding: 18px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-top: 3px solid var(--color-accent);
  border-radius: var(--radius-card);
}

.browse-steps .step-list .step-no {
  display: block;
  margin-bottom: 8px;
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
  color: var(--color-accent);
}

.browse-steps .step-list .step-name {
  font-size: 16px;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.browse-steps .step-list .step-note {
  color: var(--color-muted);
  font-size: 14px;
}

/* 字段口径与收录边界摘要（首页） */
.fields-boundary .column-fields .field-table {
  border: 0;
  font-size: 14px;
}

.fields-boundary .column-fields .field-table th,
.fields-boundary .column-fields .field-table td {
  padding: 8px 8px 8px 0;
}

.fields-boundary .column-boundary .boundary-list li {
  position: relative;
  padding: 8px 0 8px 18px;
  border-bottom: 1px dashed var(--color-border);
  color: var(--color-text);
  font-size: 14px;
}

.fields-boundary .column-boundary .boundary-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 16px;
  width: 8px;
  height: 2px;
  background-color: var(--color-accent);
}

.fields-boundary .column-boundary .boundary-list li:last-child {
  border-bottom: 0;
}

/* 整理记录速览（首页） */
.record-groups {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 20px;
}

.records-brief .record-group {
  min-width: 0;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 18px;
}

.records-brief .record-month {
  font-size: 16px;
  color: var(--color-primary);
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--color-border);
}

.records-brief .record-list li {
  display: grid;
  grid-template-columns: 96px minmax(0, 1fr);
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px dashed var(--color-border);
}

.records-brief .record-list li:last-child {
  border-bottom: 0;
}

.records-brief .record-list .record-date {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--color-muted);
}

.records-brief .record-list .record-channel {
  font-size: 13px;
  font-weight: 700;
  color: var(--color-accent);
}

.records-brief .record-list .record-note {
  grid-column: 2;
  color: var(--color-text);
  font-size: 14px;
}

/* 站内栏目索引（首页） */
.index-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 14px;
}

.index-item {
  display: block;
  padding: 16px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-left: 3px solid var(--color-primary);
  border-radius: var(--radius-card);
  text-decoration: none;
}

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

.index-name {
  display: block;
  margin-bottom: 6px;
  color: var(--color-primary);
  font-size: 16px;
  font-weight: 700;
}

.index-desc {
  display: block;
  color: var(--color-muted);
  font-size: 13px;
  line-height: 1.6;
}

/* 首页补充说明与 FAQ */
.home-notes .note-list li {
  position: relative;
  padding: 8px 0 8px 18px;
  border-bottom: 1px dashed var(--color-border);
  color: var(--color-text);
  font-size: 14px;
}

.home-notes .note-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 16px;
  width: 8px;
  height: 2px;
  background-color: var(--color-primary);
}

.home-notes .note-list li:last-child {
  border-bottom: 0;
}

.home-notes .faq-item {
  margin-top: 14px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
}

.home-notes .faq-item summary {
  padding: 14px 18px;
  color: var(--color-primary);
  font-size: 16px;
  font-weight: 700;
}

.home-notes .faq-item summary:hover,
.home-notes .faq-item summary:focus-visible {
  color: var(--color-accent);
}

.home-notes .faq-item p {
  padding: 0 18px 16px;
  color: var(--color-text);
  font-size: 15px;
}

/* --------------------------------------------------------------------------
   pages · 题材频道
   -------------------------------------------------------------------------- */

.channels-table-section .section-media img {
  aspect-ratio: 21 / 9;
}

.channels-table-section .section-media figcaption {
  padding: 8px 2px 0;
}

.channels-table-section .channel-list {
  display: grid;
  gap: 16px;
  margin-top: 20px;
}

.channels-table-section .channel-list .channel-row {
  display: block;
  padding: 0;
  border-bottom: 0;
}

.channels-table-section .channel-item {
  min-width: 0;
  padding: 18px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-primary);
  border-radius: var(--radius-card);
}

.channels-table-section .channel-item .channel-no {
  margin-bottom: 6px;
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
  color: var(--color-accent);
}

.channels-table-section .channel-item .channel-name {
  font-size: 18px;
  color: var(--color-primary);
  margin-bottom: 12px;
}

.channels-table-section .channel-meta {
  display: grid;
  grid-template-columns: 130px minmax(0, 1fr);
  gap: 6px 16px;
  margin: 0;
  font-size: 14px;
}

.channels-table-section .channel-meta dt {
  color: var(--color-primary);
  font-weight: 700;
  padding: 6px 0;
  border-top: 1px dashed var(--color-border);
}

.channels-table-section .channel-meta dd {
  margin: 0;
  color: var(--color-text);
  padding: 6px 0;
  border-top: 1px dashed var(--color-border);
}

.compare-section .dimension-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 18px;
}

.compare-section .dimension-item {
  min-width: 0;
  padding: 18px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
}

.compare-section .dimension-name {
  font-size: 16px;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.compare-section .dimension-item p {
  color: var(--color-muted);
  font-size: 14px;
}

.selection-section .selection-columns {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 24px;
}

.selection-section .selection-col {
  min-width: 0;
  padding: 20px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
}

.selection-section .selection-col h3 {
  font-size: 17px;
  color: var(--color-primary);
  margin-bottom: 14px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--color-border);
}

.selection-section .selection-col .scene-list li,
.selection-section .selection-col .advice-list li {
  position: relative;
  padding: 8px 0 8px 18px;
  border-bottom: 1px dashed var(--color-border);
  color: var(--color-text);
  font-size: 14px;
}

.selection-section .selection-col .scene-list li::before,
.selection-section .selection-col .advice-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 16px;
  width: 8px;
  height: 2px;
  background-color: var(--color-accent);
}

.selection-section .selection-col .scene-list li:last-child,
.selection-section .selection-col .advice-list li:last-child {
  border-bottom: 0;
}

/* --------------------------------------------------------------------------
   pages · 专题片单
   -------------------------------------------------------------------------- */

.playlist-cards-section .playlist-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}

.playlist-cards-section .playlist-card {
  display: flex;
  flex-direction: column;
  min-width: 0;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  overflow: hidden;
}

.playlist-cards-section .playlist-cover img {
  aspect-ratio: 16 / 9;
}

.playlist-cards-section .playlist-name {
  padding: 16px 16px 0;
  font-size: 17px;
  color: var(--color-primary);
}

.playlist-cards-section .playlist-name a {
  color: var(--color-primary);
}

.playlist-cards-section .playlist-theme {
  padding: 8px 16px 0;
  color: var(--color-text);
  font-size: 14px;
}

.playlist-cards-section .playlist-basis {
  padding: 6px 16px 0;
  color: var(--color-muted);
  font-size: 13px;
}

.playlist-cards-section .playlist-count {
  padding: 10px 16px 16px;
  color: var(--color-accent);
  font-size: 13px;
  font-weight: 700;
}

.selection-logic-section .logic-list {
  display: grid;
  gap: 14px;
}

.selection-logic-section .logic-item {
  min-width: 0;
  padding: 16px 18px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-accent);
  border-radius: var(--radius-card);
}

.selection-logic-section .logic-name {
  font-size: 16px;
  color: var(--color-primary);
  margin-bottom: 6px;
}

.selection-logic-section .logic-desc {
  color: var(--color-muted);
  font-size: 14px;
}

.related-entry-section .related-entry-columns {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 24px;
}

.related-entry-section .related-column {
  min-width: 0;
  padding: 20px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
}

.related-entry-section .related-list .related-item {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 12px;
  align-items: baseline;
  padding: 8px 0;
  border-bottom: 1px dashed var(--color-border);
}

.related-entry-section .related-list .related-item:last-child {
  border-bottom: 0;
}

.related-entry-section .related-note {
  color: var(--color-muted);
  font-size: 13px;
}

/* --------------------------------------------------------------------------
   pages · 浏览指引
   -------------------------------------------------------------------------- */

.guide-steps .step-track {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 18px;
}

.guide-steps .step-track .step-item {
  min-width: 0;
  padding: 18px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-top: 3px solid var(--color-primary);
  border-radius: var(--radius-card);
}

.guide-steps .step-track .step-num {
  display: block;
  margin-bottom: 8px;
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
  color: var(--color-accent);
}

.guide-steps .step-track .step-name {
  font-size: 16px;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.guide-steps .step-track .step-desc {
  color: var(--color-muted);
  font-size: 14px;
}

.guide-preconditions .guide-figure {
  margin-bottom: 20px;
}

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

.guide-preconditions .guide-figure figcaption {
  padding: 8px 2px 0;
}

.guide-preconditions .precondition-list {
  margin: 0;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
}

.guide-preconditions .precondition-list .precondition-row {
  display: grid;
  grid-template-columns: 200px minmax(0, 1fr);
  gap: 16px;
  padding: 14px 18px;
  border-bottom: 1px solid var(--color-border);
}

.guide-preconditions .precondition-list .precondition-row:last-child {
  border-bottom: 0;
}

.guide-preconditions .precondition-list .precondition-term {
  color: var(--color-primary);
  font-weight: 700;
  font-size: 15px;
}

.guide-preconditions .precondition-list .precondition-desc {
  margin: 0;
  color: var(--color-text);
  font-size: 14px;
}

.guide-obstacles .obstacle-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 16px;
}

.guide-obstacles .obstacle-item {
  min-width: 0;
  padding: 16px 18px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-accent);
  border-radius: var(--radius-card);
}

.guide-obstacles .obstacle-name {
  font-size: 16px;
  color: var(--color-primary);
  margin-bottom: 6px;
}

.guide-obstacles .obstacle-desc {
  color: var(--color-muted);
  font-size: 14px;
}

/* --------------------------------------------------------------------------
   pages · 字段口径
   -------------------------------------------------------------------------- */

.page-figure {
  margin-bottom: 28px;
}

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

.page-figure figcaption {
  padding: 8px 2px 0;
}

.section-fields-table .fields-data-table {
  font-size: 14px;
}

.section-value-rules .rule-list .rule-item,
.section-value-rules .misread-list .misread-item {
  padding: 10px 0;
  border-bottom: 1px dashed var(--color-border);
}

.section-value-rules .rule-list .rule-item:last-child,
.section-value-rules .misread-list .misread-item:last-child {
  border-bottom: 0;
}

.section-value-rules .rule-name,
.section-value-rules .misread-name {
  display: block;
  margin-bottom: 4px;
  color: var(--color-primary);
  font-size: 15px;
  font-weight: 700;
}

.section-value-rules .rule-desc,
.section-value-rules .misread-desc {
  color: var(--color-muted);
  font-size: 14px;
}

.section-boundary .boundary-list {
  display: grid;
  gap: 16px;
}

.section-boundary .boundary-item {
  min-width: 0;
  padding: 16px 18px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
}

.section-boundary .boundary-name {
  font-size: 16px;
  color: var(--color-primary);
  margin-bottom: 6px;
}

.section-boundary .boundary-desc {
  color: var(--color-text);
  font-size: 14px;
}

.section-boundary .boundary-check {
  margin-top: 6px;
  padding-top: 6px;
  border-top: 1px dashed var(--color-border);
  color: var(--color-muted);
  font-size: 13px;
}

/* --------------------------------------------------------------------------
   pages · 整理记录
   -------------------------------------------------------------------------- */

.record-figure {
  margin-bottom: 28px;
}

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

.record-figure figcaption {
  padding: 8px 2px 0;
}

.records-list .record-month-title {
  margin-bottom: 16px;
  padding: 0 0 10px;
  border-bottom: 2px solid var(--color-primary);
  font-size: 18px;
}

.records-list .record-items {
  display: grid;
  gap: 0;
  margin-bottom: 28px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
}

.records-list .record-items .record-item {
  display: grid;
  grid-template-columns: 110px 140px minmax(0, 1fr);
  gap: 14px;
  align-items: baseline;
  padding: 12px 18px;
  border-bottom: 1px solid var(--color-border);
}

.records-list .record-items .record-item:last-child {
  border-bottom: 0;
}

.records-list .record-date {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--color-muted);
}

.records-list .record-scope {
  font-size: 13px;
  font-weight: 700;
  color: var(--color-accent);
}

.records-list .record-text {
  color: var(--color-text);
  font-size: 14px;
}

.reasons .reasons-columns {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 24px;
}

.reasons .reasons-col {
  min-width: 0;
  padding: 20px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
}

.reasons .reasons-col .subsection-title {
  font-size: 17px;
  color: var(--color-primary);
  margin-bottom: 14px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--color-border);
}

.reasons .scope-list .scope-item {
  padding: 8px 0;
  border-bottom: 1px dashed var(--color-border);
}

.reasons .scope-list .scope-item:last-child {
  border-bottom: 0;
}

.reasons .cause-list .cause-item {
  position: relative;
  padding: 8px 0 8px 18px;
  border-bottom: 1px dashed var(--color-border);
  color: var(--color-text);
  font-size: 14px;
}

.reasons .cause-list .cause-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 16px;
  width: 8px;
  height: 2px;
  background-color: var(--color-accent);
}

.reasons .cause-list .cause-item:last-child {
  border-bottom: 0;
}

.advice .advice-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 18px;
}

.advice .advice-item {
  min-width: 0;
  padding: 18px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-top: 3px solid var(--color-accent);
  border-radius: var(--radius-card);
}

.advice .advice-title {
  font-size: 16px;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.advice .advice-text {
  color: var(--color-muted);
  font-size: 14px;
}

/* --------------------------------------------------------------------------
   pages · 404
   -------------------------------------------------------------------------- */

.error-main {
  width: 100%;
  max-width: var(--width-content);
  margin: 0 auto;
  padding: 48px 20px 64px;
}

.error-section {
  max-width: 640px;
  padding: 32px 28px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-accent);
  border-radius: var(--radius-card);
}

.error-title {
  font-size: 30px;
  color: var(--color-primary);
  margin-bottom: 10px;
}

.error-code {
  margin-bottom: 14px;
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
  color: var(--color-accent);
}

.error-desc {
  margin-bottom: 20px;
  color: var(--color-text);
  font-size: 15px;
}

.error-actions {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 12px;
  margin-bottom: 18px;
}

.error-actions .error-link {
  display: block;
}

.error-btn {
  display: block;
  padding: 11px 16px;
  min-height: 44px;
  background-color: #eef1f6;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  color: var(--color-primary);
  font-size: 15px;
  font-weight: 700;
  text-align: center;
  text-decoration: none;
}

.error-btn:hover,
.error-btn:focus-visible {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  color: #ffffff;
  text-decoration: underline;
  text-decoration-color: #ffffff;
  text-decoration-thickness: 2px;
}

.error-tip {
  color: var(--color-muted);
  font-size: 13px;
}

/* --------------------------------------------------------------------------
   responsive
   -------------------------------------------------------------------------- */

@media (max-width: 960px) {
  .header-inner {
    gap: 12px;
  }

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

  .site-nav {
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    display: block;
    background-color: var(--color-primary);
    border-bottom: 1px solid #0f1b33;
    box-shadow: 0 8px 16px rgba(15, 27, 51, 0.18);
  }

  .nav-list {
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 8px 12px 14px;
  }

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

  .nav-link {
    padding: 12px;
    min-height: 44px;
    border-left: 3px solid transparent;
    border-bottom: 1px solid #2c3f66;
    border-radius: 0;
  }

  .nav-link.is-current {
    border-left-color: var(--color-accent-soft);
  }

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

  .hero-title {
    font-size: 28px;
  }

  .two-column,
  .two-col-grid,
  .selection-section .selection-columns,
  .related-entry-section .related-entry-columns,
  .reasons .reasons-columns {
    grid-template-columns: minmax(0, 1fr);
  }

  .footer-inner {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 22px;
  }

  .channels-table-section .channel-meta {
    grid-template-columns: 110px minmax(0, 1fr);
  }

  .guide-preconditions .precondition-list .precondition-row {
    grid-template-columns: 160px minmax(0, 1fr);
  }

  .records-list .record-items .record-item {
    grid-template-columns: 100px minmax(0, 1fr);
  }

  .records-list .record-text {
    grid-column: 2;
  }
}

@media (max-width: 640px) {
  body.site-body {
    font-size: 15px;
  }

  .header-inner {
    padding: 0 14px;
  }

  .home-main,
  .inner-main,
  .error-main {
    padding-left: 14px;
    padding-right: 14px;
  }

  .page-title {
    font-size: 26px;
  }

  .hero {
    padding-top: 24px;
  }

  .hero-title {
    font-size: 26px;
  }

  .section-title {
    font-size: 21px;
  }

  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .hero-actions .btn {
    width: 100%;
  }

  .channels-overview .channel-rows .channel-row {
    grid-template-columns: 48px minmax(0, 1fr);
    gap: 12px;
    padding: 14px;
  }

  .channels-table-section .channel-meta {
    grid-template-columns: minmax(0, 1fr);
    gap: 0;
  }

  .channels-table-section .channel-meta dt {
    padding-bottom: 0;
    border-top: 0;
  }

  .channels-table-section .channel-meta dd {
    padding-top: 0;
    margin-bottom: 8px;
  }

  .records-brief .record-list li {
    grid-template-columns: minmax(0, 1fr);
    gap: 4px;
  }

  .records-brief .record-list .record-note {
    grid-column: 1;
  }

  .records-list .record-items .record-item {
    grid-template-columns: minmax(0, 1fr);
    gap: 4px;
  }

  .records-list .record-text {
    grid-column: 1;
  }

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

  .related-entry-section .related-list .related-item {
    grid-template-columns: minmax(0, 1fr);
    gap: 2px;
  }

  .footer-inner {
    grid-template-columns: minmax(0, 1fr);
    gap: 20px;
    padding: 28px 14px 20px;
  }

  .footer-boundary,
  .footer-copy {
    padding-left: 14px;
    padding-right: 14px;
  }

  .error-section {
    padding: 24px 18px;
  }

  .error-title {
    font-size: 24px;
  }
}