/* ==========================================================================
   基础与变量
   ========================================================================== */

:root {
  --paper: #F4F1EA;
  --paper-deep: #E7E1D3;
  --ink: #1C1F1D;
  --ink-soft: #575C55;
  --ochre: #7A4A2B;
  --pine: #3E5B50;
  --rule: #D8D2C4;
  --serif: "Songti SC", "Noto Serif SC", "Source Han Serif", "STSong", Georgia, serif;
  --sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Segoe UI", Arial, sans-serif;
  --shell: 1180px;
  --gap: 40px;
}

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

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

.site-body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.85;
}

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

a {
  color: var(--ochre);
  text-decoration: none;
  text-underline-offset: 3px;
}

a:hover,
a:focus-visible {
  text-decoration: underline;
}

p {
  margin: 0 0 14px;
}

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

h1,
h2,
h3 {
  margin: 0;
  font-weight: 400;
  color: var(--ink);
}

figure {
  margin: 0;
}

button {
  font-family: inherit;
}

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

/* ==========================================================================
   全站骨架：页头 / 导航 / 主容器 / 页脚
   ========================================================================== */

.site-header {
  background: var(--paper);
  border-bottom: 1px solid var(--rule);
  position: relative;
  z-index: 30;
}

.header-inner {
  max-width: var(--shell);
  margin: 0 auto;
  padding: 18px 24px;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px 28px;
}

.brand {
  display: flex;
  flex-direction: column;
  line-height: 1.3;
  color: var(--ink);
  margin-right: auto;
}

.brand:hover,
.brand:focus-visible {
  text-decoration: none;
}

.brand-name {
  font-family: var(--serif);
  font-size: 21px;
  letter-spacing: 0.02em;
}

.brand-sub {
  font-size: 12px;
  color: var(--ink-soft);
  letter-spacing: 0.04em;
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 1px solid var(--rule);
  border-radius: 4px;
  background: transparent;
  cursor: pointer;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
}

.nav-toggle-bar {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--ink);
}

.site-nav {
  font-size: 15px;
}

.nav-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 4px 22px;
}

.nav-item {
  display: block;
}

.nav-link {
  display: inline-block;
  padding: 8px 2px;
  color: var(--ink);
  border-bottom: 1px solid transparent;
  line-height: 1.5;
}

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

.nav-link.is-current {
  color: var(--ochre);
  border-bottom-color: var(--ochre);
}

.nav-item-tool .nav-link {
  color: var(--ink-soft);
}

.nav-item-tool .nav-link.is-current {
  color: var(--ochre);
}

.site-main {
  display: block;
}

.inner-main {
  max-width: var(--shell);
  margin: 0 auto;
  padding: 26px 24px 64px;
}

.home-main {
  padding-bottom: 0;
}

/* 面包屑 */

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--ink-soft);
  margin-bottom: 18px;
}

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

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

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

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

/* 页面标题区 */

.page-header {
  margin-bottom: 10px;
}

.page-title {
  font-family: var(--serif);
  font-size: 30px;
  line-height: 1.35;
  font-weight: 400;
  color: var(--ink);
}

.page-head {
  margin-bottom: 34px;
  padding-bottom: 22px;
  border-bottom: 1px solid var(--rule);
}

.page-head-inner {
  display: block;
}

.page-title-block {
  max-width: 760px;
}

.page-summary,
.page-lead {
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-soft);
  margin: 12px 0 0;
}

.page-tags,
.page-tagline {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 16px 0 0;
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--ink-soft);
}

.page-tagline li {
  padding-left: 12px;
  border-left: 1px solid var(--rule);
  line-height: 1.6;
}

.page-tagline li:first-child {
  padding-left: 0;
  border-left: 0;
}

.tag {
  display: inline-block;
  padding: 2px 10px;
  font-size: 12px;
  line-height: 1.7;
  letter-spacing: 0.04em;
  color: var(--pine);
  background: var(--paper-deep);
  border: 1px solid var(--rule);
  border-radius: 2px;
}

.page-tag {
  display: inline-block;
  padding: 2px 10px;
  font-size: 12px;
  line-height: 1.7;
  letter-spacing: 0.04em;
  color: var(--pine);
  background: var(--paper-deep);
  border: 1px solid var(--rule);
  border-radius: 2px;
}

/* 页脚 */

.site-footer {
  margin-top: 72px;
  border-top: 1px solid var(--rule);
  background: var(--paper-deep);
  color: var(--ink-soft);
  font-size: 14px;
}

.footer-inner {
  max-width: var(--shell);
  margin: 0 auto;
  padding: 40px 24px 28px;
}

.footer-top {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
  gap: 32px var(--gap);
  padding-bottom: 26px;
  border-bottom: 1px solid var(--rule);
}

.footer-brand-name {
  font-family: var(--serif);
  font-size: 18px;
  color: var(--ink);
  margin: 0 0 8px;
  line-height: 1.5;
}

.footer-brand-desc {
  margin: 0;
  font-size: 13px;
  line-height: 1.8;
  color: var(--ink-soft);
}

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

.footer-group-title {
  margin: 0 0 10px;
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--ink);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.footer-links a {
  color: var(--ink-soft);
  font-size: 13px;
}

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

.footer-notice {
  margin: 22px 0 0;
  font-size: 13px;
  line-height: 1.8;
  color: var(--ink-soft);
}

.footer-update {
  margin: 10px 0 0;
  font-size: 13px;
  color: var(--ink-soft);
}

.footer-update a {
  color: var(--ochre);
}

.footer-copy {
  margin: 18px 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--rule);
  font-size: 12px;
  letter-spacing: 0.02em;
  color: var(--ink-soft);
}

/* ==========================================================================
   通用组件：提示条 / 折叠问答 / 图片
   ========================================================================== */

.notice-bar {
  margin: 20px 0;
  padding: 14px 18px;
  background: var(--paper-deep);
  border-left: 3px solid var(--pine);
  border-radius: 0 3px 3px 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink-soft);
}

.notice-bar p {
  margin: 0;
}

.notice-bar a {
  color: var(--ochre);
}

.notice-bar-strong {
  border-left-color: var(--ochre);
}

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

.notice-list li {
  position: relative;
  padding-left: 16px;
  line-height: 1.8;
}

.notice-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 12px;
  width: 6px;
  height: 6px;
  background: var(--ochre);
  border-radius: 50%;
}

.faq-list,
.faq-group {
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--rule);
}

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

.faq-question {
  position: relative;
  padding: 16px 44px 16px 0;
  font-size: 16px;
  line-height: 1.7;
  color: var(--ink);
  cursor: pointer;
  list-style: none;
}

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

.faq-question::after {
  content: "+";
  position: absolute;
  right: 6px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 20px;
  line-height: 1;
  color: var(--ochre);
}

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

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

.faq-answer {
  padding: 0 0 18px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink-soft);
}

.faq-answer p {
  margin: 0 0 10px;
}

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

.faq-label {
  color: var(--ochre);
  font-weight: 600;
}

.doc-figure,
.content-figure,
.block-figure,
.article-media {
  margin: 22px 0;
}

.doc-figure img,
.content-figure img,
.block-figure img,
.article-media img {
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-radius: 4px;
  background: var(--paper-deep);
}

.doc-figure figcaption,
.content-figure figcaption,
.block-figure figcaption,
.article-media figcaption {
  margin-top: 8px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink-soft);
}

/* ==========================================================================
   首页
   ========================================================================== */

.hero {
  position: relative;
  max-width: var(--shell);
  margin: 0 auto;
  padding: 0 24px;
}

.hero-media {
  position: relative;
  overflow: hidden;
  border-radius: 6px;
}

.hero-media img {
  width: 100%;
  height: auto;
  aspect-ratio: 21 / 9;
  object-fit: cover;
  display: block;
  background: var(--paper-deep);
}

.hero-overlay {
  position: relative;
  max-width: 820px;
  margin: -110px auto 0;
  padding: 30px 34px 32px;
  background: var(--paper);
  border: 1px solid var(--rule);
  border-radius: 4px;
}

.hero-kicker {
  margin: 0 0 10px;
  font-size: 13px;
  letter-spacing: 0.14em;
  color: var(--ochre);
}

.hero-title {
  font-family: var(--serif);
  font-size: 34px;
  line-height: 1.35;
  font-weight: 400;
  color: var(--ink);
  margin: 0 0 16px;
}

.hero-lead {
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink-soft);
  margin: 0 0 20px;
}

.hero-anchors {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 10px;
  padding-top: 16px;
  border-top: 1px solid var(--rule);
}

.anchor-link {
  display: inline-block;
  padding: 5px 12px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--ink);
  border: 1px solid var(--rule);
  border-radius: 2px;
  background: transparent;
}

.anchor-link:hover,
.anchor-link:focus-visible {
  color: var(--ochre);
  border-color: var(--ochre);
  text-decoration: none;
}

.section {
  max-width: var(--shell);
  margin: 0 auto;
  padding: 56px 24px 0;
}

.section-head {
  max-width: 760px;
  margin-bottom: 26px;
}

.section-index {
  margin: 0 0 8px;
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--ochre);
}

.section-title {
  font-family: var(--serif);
  font-size: 22px;
  line-height: 1.45;
  font-weight: 400;
  color: var(--ink);
  margin: 0 0 10px;
}

.section-lead {
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink-soft);
  margin: 0;
}

.section-lead a {
  color: var(--ochre);
}

/* 本期片单 */

.playlist-list {
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--rule);
}

.playlist-item {
  display: grid;
  grid-template-columns: 56px 190px minmax(0, 1fr);
  gap: 22px;
  align-items: start;
  padding: 22px 0;
  border-bottom: 1px solid var(--rule);
}

.item-num {
  font-family: var(--serif);
  font-size: 26px;
  line-height: 1.2;
  color: var(--ochre);
  letter-spacing: 0.04em;
}

.item-media img {
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  border-radius: 4px;
  background: var(--paper-deep);
}

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

.item-title {
  font-family: var(--serif);
  font-size: 19px;
  line-height: 1.5;
  margin: 0 0 8px;
  color: var(--ink);
}

.item-summary {
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink-soft);
  margin: 0 0 10px;
}

.item-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 0;
}

.section-foot {
  margin: 20px 0 0;
  font-size: 14px;
  color: var(--ink-soft);
}

.section-foot a {
  color: var(--ochre);
}

/* 频道索引 */

.channel-index {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0 var(--gap);
  border-top: 1px solid var(--rule);
}

.channel-row {
  padding: 20px 0;
  border-bottom: 1px solid var(--rule);
  min-width: 0;
}

.channel-name {
  font-family: var(--serif);
  font-size: 18px;
  line-height: 1.5;
  margin: 0 0 6px;
  color: var(--ink);
}

.channel-scene {
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink);
  margin: 0 0 4px;
}

.channel-rule {
  font-size: 13px;
  line-height: 1.75;
  color: var(--ink-soft);
  margin: 0;
}

/* 观看路径 */

.path-steps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}

.path-step {
  padding: 22px 22px 24px;
  background: var(--paper-deep);
  border: 1px solid var(--rule);
  border-radius: 4px;
  min-width: 0;
}

.path-step .step-num {
  display: block;
  font-family: var(--serif);
  font-size: 15px;
  letter-spacing: 0.12em;
  color: var(--ochre);
  margin-bottom: 8px;
}

.path-step .step-name {
  font-size: 17px;
  font-weight: 600;
  line-height: 1.5;
  margin: 0 0 8px;
  color: var(--ink);
}

.path-step .step-desc {
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink-soft);
  margin: 0 0 12px;
}

.path-step .step-link {
  font-size: 14px;
  color: var(--ochre);
}

/* 更新节奏与归档 */

.rhythm-body {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
  gap: var(--gap);
  align-items: start;
}

.rhythm-nodes {
  border-top: 1px solid var(--rule);
}

.rhythm-node {
  padding: 16px 0 16px 18px;
  border-bottom: 1px solid var(--rule);
  border-left: 2px solid var(--rule);
  min-width: 0;
}

.node-name {
  font-size: 16px;
  font-weight: 600;
  line-height: 1.6;
  margin: 0 0 4px;
  color: var(--ink);
}

.node-desc {
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink-soft);
  margin: 0;
}

.rhythm-note {
  padding: 20px 22px;
  background: var(--paper-deep);
  border-radius: 4px;
  font-size: 14px;
  line-height: 1.85;
  color: var(--ink-soft);
}

.rhythm-note p {
  margin: 0 0 12px;
}

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

/* 编辑规范与内容边界 */

.scope-body {
  max-width: 820px;
}

.scope-text {
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink);
  margin: 0 0 14px;
}

.scope-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
  margin: 0 0 16px;
  font-size: 15px;
}

.scope-links a {
  color: var(--ochre);
}

.scope-notice {
  margin: 0;
  padding: 14px 18px;
  background: var(--paper-deep);
  border-left: 3px solid var(--pine);
  border-radius: 0 3px 3px 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink-soft);
}

/* 相关入口 */

.related-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0 var(--gap);
  border-top: 1px solid var(--rule);
}

.related-item {
  padding: 18px 0;
  border-bottom: 1px solid var(--rule);
  min-width: 0;
}

.related-link {
  display: inline-block;
  font-family: var(--serif);
  font-size: 18px;
  line-height: 1.5;
  color: var(--ochre);
  margin-bottom: 4px;
}

.related-desc {
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink-soft);
  margin: 0;
}

/* ==========================================================================
   内页三栏外壳
   ========================================================================== */

.page-layout {
  display: grid;
  grid-template-columns: 200px minmax(0, 1fr) 200px;
  gap: var(--gap);
  align-items: start;
}

/* 左侧目录在前 */

.page-layout.sidebar-left {
  grid-template-columns: 200px minmax(0, 1fr) 200px;
}

/* 目录通用条目 */

.side-nav,
.side-nav-title {
  min-width: 0;
}

.side-nav-title,
.side-title,
.sidebar-title,
.toc-title,
.side-toc-title,
.aside-title {
  margin: 0 0 10px;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--ochre);
  font-weight: 400;
}

.side-nav-list,
.side-list,
.sidebar-list,
.sidebar-nav,
.toc-list,
.side-toc-list,
.aside-nav-list {
  display: flex;
  flex-direction: column;
  gap: 2px;
  border-left: 1px solid var(--rule);
}

.side-nav-item a,
.side-nav-list a,
.side-list a,
.sidebar-item a,
.sidebar-list a,
.sidebar-nav a,
.toc-list a,
.side-toc-list a,
.aside-nav-item a {
  display: block;
  padding: 7px 0 7px 12px;
  margin-left: -1px;
  border-left: 2px solid transparent;
  font-size: 14px;
  line-height: 1.6;
  color: var(--ink-soft);
}

.side-nav-item a:hover,
.side-nav-list a:hover,
.side-list a:hover,
.sidebar-item a:hover,
.sidebar-list a:hover,
.sidebar-nav a:hover,
.toc-list a:hover,
.side-toc-list a:hover,
.aside-nav-item a:hover,
.side-nav-list a:focus-visible,
.side-list a:focus-visible,
.sidebar-nav a:focus-visible,
.toc-list a:focus-visible,
.aside-nav-item a:focus-visible {
  color: var(--ochre);
  border-left-color: var(--ochre);
  text-decoration: none;
}

.sidebar-item.is-active a {
  color: var(--ochre);
  border-left-color: var(--ochre);
}

/* 中间主干 */

.layout-center,
.doc-body,
.col-main,
.page-body,
.page-content,
.layout-main {
  min-width: 0;
}

.content-block,
.doc-section,
.content-section {
  margin-bottom: 44px;
}

.content-block:last-child,
.doc-section:last-child,
.content-section:last-child {
  margin-bottom: 0;
}

.block-title,
.doc-section > h2,
.content-section > .section-title {
  font-family: var(--serif);
  font-size: 22px;
  line-height: 1.45;
  font-weight: 400;
  color: var(--ink);
  margin: 0 0 12px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--rule);
}

.block-lead,
.section-intro,
.section-lead {
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink-soft);
  margin: 0 0 16px;
}

.doc-section > p,
.content-section > p {
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink);
}

.doc-section > p a,
.content-section > p a {
  color: var(--ochre);
}

/* ==========================================================================
   频道目录页
   ========================================================================== */

.filter-points {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
  margin: 18px 0 4px;
}

.filter-point {
  padding: 16px 18px;
  background: var(--paper-deep);
  border-left: 3px solid var(--pine);
  border-radius: 0 3px 3px 0;
  min-width: 0;
}

.filter-point-title {
  font-size: 15px;
  font-weight: 600;
  line-height: 1.6;
  margin: 0 0 6px;
  color: var(--ink);
}

.filter-point p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink-soft);
}

.channel-entries {
  display: flex;
  flex-direction: column;
  gap: 26px;
  margin-top: 8px;
}

.channel-entry {
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr);
  gap: 22px;
  align-items: start;
  padding-top: 24px;
  border-top: 1px solid var(--rule);
}

.channel-entry:nth-child(even) {
  grid-template-columns: minmax(0, 1fr) 220px;
}

.channel-entry:nth-child(even) .channel-entry-media {
  order: 2;
}

.channel-entry-media img {
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: 4px;
  background: var(--paper-deep);
}

.channel-entry-body {
  min-width: 0;
}

.channel-entry-no {
  display: block;
  font-family: var(--serif);
  font-size: 14px;
  letter-spacing: 0.12em;
  color: var(--ochre);
  margin-bottom: 4px;
}

.channel-entry-name {
  font-family: var(--serif);
  font-size: 19px;
  line-height: 1.5;
  font-weight: 400;
  margin: 0 0 8px;
  color: var(--ink);
}

.channel-entry-desc {
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink);
  margin: 0 0 8px;
}

.channel-entry-meta {
  font-size: 13px;
  line-height: 1.8;
  color: var(--ink-soft);
  margin: 0;
}

.archive-box {
  padding: 18px 20px;
  background: var(--paper-deep);
  border-radius: 4px;
}

.archive-line {
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink-soft);
  margin: 0 0 8px;
}

.archive-line:last-child {
  margin-bottom: 0;
}

.archive-label {
  display: inline-block;
  min-width: 84px;
  color: var(--ink);
  font-weight: 600;
}

/* ==========================================================================
   片单排期页
   ========================================================================== */

.term-list {
  margin: 0;
  border-top: 1px solid var(--rule);
}

.term-row {
  display: grid;
  grid-template-columns: 140px minmax(0, 1fr);
  gap: 20px;
  padding: 14px 0;
  border-bottom: 1px solid var(--rule);
}

.term-row dt {
  font-family: var(--serif);
  font-size: 16px;
  line-height: 1.7;
  color: var(--ink);
}

.term-row dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink-soft);
  min-width: 0;
}

.check-block {
  margin: 20px 0;
  padding: 18px 20px;
  background: var(--paper-deep);
  border-radius: 4px;
}

.check-block h3 {
  font-size: 16px;
  font-weight: 600;
  line-height: 1.6;
  margin: 0 0 10px;
  color: var(--ink);
}

.check-list {
  counter-reset: check;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.check-list li {
  position: relative;
  counter-increment: check;
  padding-left: 30px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink-soft);
}

.check-list li::before {
  content: counter(check);
  position: absolute;
  left: 0;
  top: 3px;
  width: 20px;
  height: 20px;
  font-size: 12px;
  line-height: 20px;
  text-align: center;
  color: var(--paper);
  background: var(--pine);
  border-radius: 50%;
}

.check-list li .check-name {
  display: block;
  color: var(--ink);
  font-weight: 600;
  margin-bottom: 2px;
}

.archive-block {
  margin: 18px 0;
  padding: 18px 20px;
  background: var(--paper-deep);
  border-radius: 4px;
}

.archive-block h3 {
  font-size: 16px;
  font-weight: 600;
  line-height: 1.6;
  margin: 0 0 10px;
  color: var(--ink);
}

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

.archive-list li {
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink-soft);
  padding-left: 14px;
  border-left: 2px solid var(--rule);
}

.archive-name {
  color: var(--ink);
  font-weight: 600;
}

.side-toc {
  min-width: 0;
}

/* ==========================================================================
   观看异常页
   ========================================================================== */

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

.side-toggle {
  display: none;
  width: 100%;
  padding: 10px 14px;
  font-size: 14px;
  text-align: left;
  color: var(--ink);
  background: var(--paper-deep);
  border: 1px solid var(--rule);
  border-radius: 4px;
  cursor: pointer;
}

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

.side-title {
  margin-top: 18px;
}

.side-title:first-child {
  margin-top: 0;
}

.side-list-anchor a {
  color: var(--ink-soft);
}

.step-list {
  display: flex;
  flex-direction: column;
  gap: 0;
  margin: 18px 0;
  border-top: 1px solid var(--rule);
}

.step-item {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 16px;
  align-items: start;
  padding: 16px 0;
  border-bottom: 1px solid var(--rule);
}

.step-item .step-num {
  font-family: var(--serif);
  font-size: 20px;
  line-height: 1.4;
  color: var(--ochre);
  letter-spacing: 0.04em;
}

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

.step-body .step-name {
  font-size: 16px;
  font-weight: 600;
  line-height: 1.6;
  margin: 0 0 4px;
  color: var(--ink);
}

.step-body .step-desc {
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink-soft);
  margin: 0;
}

.step-owner {
  display: inline-block;
  margin-top: 6px;
  padding: 1px 8px;
  font-size: 12px;
  line-height: 1.7;
  color: var(--pine);
  border: 1px solid var(--rule);
  border-radius: 2px;
  background: var(--paper-deep);
}

.faq-group .faq-question {
  font-size: 15px;
}

/* ==========================================================================
   观看流程页
   ========================================================================== */

.sidebar {
  min-width: 0;
}

.page-body .step-list {
  border-top: 1px solid var(--rule);
}

.page-body .step-item {
  display: block;
  padding: 20px 0;
}

.page-body .step-item .step-name {
  font-family: var(--serif);
  font-size: 18px;
  font-weight: 400;
  line-height: 1.5;
  margin: 0 0 6px;
  color: var(--ink);
}

.step-index {
  display: inline-block;
  margin-right: 8px;
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--ochre);
}

.step-goal {
  font-size: 14px;
  line-height: 1.8;
  color: var(--pine);
  margin: 0 0 8px;
}

.page-body .step-body {
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink);
  margin: 0 0 8px;
}

.step-check {
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink-soft);
  margin: 0;
  padding: 10px 14px;
  background: var(--paper-deep);
  border-left: 3px solid var(--pine);
  border-radius: 0 3px 3px 0;
}

.checklist {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0 var(--gap);
  border-top: 1px solid var(--rule);
}

.checklist-item {
  padding: 14px 0;
  border-bottom: 1px solid var(--rule);
  min-width: 0;
}

.checklist-name {
  font-size: 15px;
  line-height: 1.7;
  color: var(--ink);
  margin: 0 0 2px;
}

.checklist-name .check-label {
  display: inline-block;
  margin-right: 6px;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--ochre);
}

.checklist-basis {
  font-size: 13px;
  line-height: 1.75;
  color: var(--ink-soft);
  margin: 0;
}

.notice-box {
  margin: 16px 0;
  padding: 16px 20px;
  background: var(--paper-deep);
  border-left: 3px solid var(--ochre);
  border-radius: 0 3px 3px 0;
}

.notice-text {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink-soft);
}

.notice-text a {
  color: var(--ochre);
}

.limit-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.limit-item {
  position: relative;
  padding-left: 18px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink);
}

.limit-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 11px;
  width: 7px;
  height: 7px;
  background: var(--ochre);
  border-radius: 50%;
}

/* ==========================================================================
   术语档案页
   ========================================================================== */

.page-layout.layout-shell .page-content {
  min-width: 0;
}

.page-description {
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-soft);
  margin: 12px 0 0;
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 14px 0 0;
  font-size: 13px;
  color: var(--ink-soft);
}

.article-media {
  margin-top: 22px;
}

.sidebar-block {
  margin-bottom: 26px;
  min-width: 0;
}

.sidebar-block:last-child {
  margin-bottom: 0;
}

.sidebar-note {
  padding: 14px 16px;
  background: var(--paper-deep);
  border-radius: 4px;
}

.sidebar-note-text {
  margin: 0;
  font-size: 13px;
  line-height: 1.8;
  color: var(--ink-soft);
}

.term-columns {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0 var(--gap);
}

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

.term-column .term-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.term-column .term-list > div {
  padding: 12px 0;
  border-bottom: 1px solid var(--rule);
}

.term-name {
  display: block;
  font-family: var(--serif);
  font-size: 16px;
  line-height: 1.6;
  color: var(--ink);
  margin-bottom: 2px;
}

.term-desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink-soft);
}

.numbering-block {
  margin: 18px 0;
  padding: 18px 20px;
  background: var(--paper-deep);
  border-radius: 4px;
}

.numbering-title {
  font-size: 16px;
  font-weight: 600;
  line-height: 1.6;
  margin: 0 0 8px;
  color: var(--ink);
}

.numbering-code {
  font-family: var(--serif);
  font-size: 18px;
  letter-spacing: 0.06em;
  color: var(--ochre);
  margin: 0 0 10px;
}

.numbering-parts {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 10px;
}

.numbering-part {
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink-soft);
  padding-left: 14px;
  border-left: 2px solid var(--rule);
}

.numbering-part .part-label {
  color: var(--ink);
  font-weight: 600;
}

.numbering-tip {
  font-size: 13px;
  line-height: 1.75;
  color: var(--pine);
  margin: 0;
}

.citation-rules {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin: 14px 0;
}

.citation-rule {
  position: relative;
  padding-left: 32px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink);
}

.citation-rule .rule-index {
  position: absolute;
  left: 0;
  top: 4px;
  width: 22px;
  height: 22px;
  font-size: 12px;
  line-height: 22px;
  text-align: center;
  color: var(--paper);
  background: var(--pine);
  border-radius: 50%;
}

.section-tail {
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink-soft);
  margin: 0 0 8px;
}

.section-tail a {
  color: var(--ochre);
}

/* ==========================================================================
   站点说明页
   ========================================================================== */

.scope-compare {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
  margin: 20px 0;
}

.scope-col {
  padding: 18px 20px;
  border: 1px solid var(--rule);
  border-radius: 4px;
  min-width: 0;
}

.scope-col-covered {
  background: var(--paper-deep);
  border-top: 3px solid var(--pine);
}

.scope-col-excluded {
  background: transparent;
  border-top: 3px solid var(--ochre);
}

.scope-title {
  font-size: 16px;
  font-weight: 600;
  line-height: 1.6;
  margin: 0 0 10px;
  color: var(--ink);
}

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

.scope-list li {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink-soft);
}

.scope-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 11px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--pine);
}

.scope-col-excluded .scope-list li::before {
  background: var(--ochre);
}

.editorial-block {
  padding: 16px 0;
  border-bottom: 1px solid var(--rule);
}

.editorial-title {
  font-size: 16px;
  font-weight: 600;
  line-height: 1.6;
  margin: 0 0 6px;
  color: var(--ink);
}

.editorial-text {
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink-soft);
  margin: 0;
}

.editorial-text a {
  color: var(--ochre);
}

.check-method {
  margin: 20px 0 0;
  border-top: 1px solid var(--rule);
}

.check-method-row {
  display: grid;
  grid-template-columns: 150px minmax(0, 1fr);
  gap: 18px;
  padding: 12px 0;
  border-bottom: 1px solid var(--rule);
}

.check-method-name {
  font-size: 15px;
  line-height: 1.7;
  color: var(--ink);
  font-weight: 600;
}

.check-method-desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink-soft);
  min-width: 0;
}

.feedback-paths {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
  margin: 16px 0;
}

.feedback-path {
  padding: 16px 18px;
  background: var(--paper-deep);
  border-left: 3px solid var(--pine);
  border-radius: 0 3px 3px 0;
  min-width: 0;
}

.feedback-path-title {
  font-size: 15px;
  font-weight: 600;
  line-height: 1.6;
  margin: 0 0 6px;
  color: var(--ink);
}

.feedback-path-text {
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink-soft);
  margin: 0;
}

.feedback-path-text a {
  color: var(--ochre);
}

/* ==========================================================================
   404 页
   ========================================================================== */

.error-main {
  max-width: var(--shell);
  margin: 0 auto;
  padding: 56px 24px 0;
}

.error-inner {
  max-width: 760px;
  padding: 32px 0 8px;
}

.error-code {
  margin: 0 0 10px;
  font-family: var(--serif);
  font-size: 14px;
  letter-spacing: 0.2em;
  color: var(--ochre);
}

.error-title {
  font-family: var(--serif);
  font-size: 30px;
  line-height: 1.35;
  font-weight: 400;
  color: var(--ink);
  margin: 0 0 14px;
}

.error-lead {
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink-soft);
  margin: 0 0 22px;
}

.error-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px 24px;
  padding: 20px 0;
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
}

.error-btn {
  display: inline-block;
  padding: 10px 22px;
  font-size: 15px;
  line-height: 1.6;
  color: var(--paper);
  background: var(--ochre);
  border-radius: 3px;
}

.error-btn:hover,
.error-btn:focus-visible {
  background: var(--ink);
  text-decoration: none;
}

.error-link {
  font-size: 15px;
  color: var(--ochre);
}

.error-section {
  margin-top: 34px;
}

.error-section-title {
  font-family: var(--serif);
  font-size: 20px;
  line-height: 1.45;
  font-weight: 400;
  color: var(--ink);
  margin: 0 0 12px;
}

.error-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0 var(--gap);
  border-top: 1px solid var(--rule);
}

.error-list li {
  padding: 12px 0;
  border-bottom: 1px solid var(--rule);
  font-size: 15px;
  line-height: 1.8;
  min-width: 0;
}

.error-list a {
  color: var(--ink);
}

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

.error-note {
  margin: 22px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink-soft);
}

.error-note a {
  color: var(--ochre);
}

/* ==========================================================================
   响应式
   ========================================================================== */

@media (max-width: 1080px) {
  .page-layout,
  .page-layout.sidebar-left {
    grid-template-columns: 190px minmax(0, 1fr);
  }

  .layout-right,
  .side-toc,
  .sidebar-right-panel,
  .aside-right {
    display: none;
  }

  .hero-title {
    font-size: 30px;
  }

  .playlist-item {
    grid-template-columns: 48px 170px minmax(0, 1fr);
  }

  .channel-entry,
  .channel-entry:nth-child(even) {
    grid-template-columns: 190px minmax(0, 1fr);
  }

  .channel-entry:nth-child(even) .channel-entry-media {
    order: 0;
  }
}

@media (max-width: 860px) {
  .header-inner {
    padding: 14px 20px;
  }

  .nav-toggle {
    display: flex;
  }

  .site-nav {
    flex-basis: 100%;
    width: 100%;
  }

  .nav-list {
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    margin-top: 6px;
    border-top: 1px solid var(--rule);
  }

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

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

  .nav-link {
    display: flex;
    align-items: center;
    min-height: 48px;
    padding: 0 4px;
    border-bottom: 0;
  }

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

  .inner-main {
    padding: 20px 20px 56px;
  }

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

  /* 左侧目录转为顶部折叠目录 */

  .side-nav,
  .sidebar-nav,
  .aside-nav,
  .sidebar-left-panel,
  .layout-left,
  .sidebar-nav.sidebar-nav {
    order: -1;
  }

  .side-nav-list,
  .sidebar-list,
  .sidebar-nav,
  .aside-nav-list {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0 12px;
    border-left: 0;
    border-top: 1px solid var(--rule);
  }

  .side-nav-item a,
  .side-nav-list a,
  .side-list a,
  .sidebar-item a,
  .sidebar-list a,
  .sidebar-nav a,
  .aside-nav-item a {
    padding: 10px 4px;
    margin-left: 0;
    border-left: 0;
    border-bottom: 1px solid var(--rule);
  }

  .side-nav-item a:hover,
  .side-nav-list a:hover,
  .side-list a:hover,
  .sidebar-item a:hover,
  .sidebar-list a:hover,
  .sidebar-nav a:hover,
  .aside-nav-item a:hover {
    border-left-color: transparent;
  }

  .sidebar-item.is-active a {
    border-left-color: transparent;
    border-bottom-color: var(--ochre);
  }

  .sidebar-block {
    margin-bottom: 18px;
  }

  .sidebar-note {
    display: block;
  }

  .side-toggle {
    display: block;
  }

  .col-side-left .side-body {
    display: none;
    margin-top: 12px;
  }

  .col-side-left .side-body.is-open {
    display: block;
  }

  /* 首页 */

  .hero {
    padding: 0 20px;
  }

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

  .hero-overlay {
    margin: -60px 0 0;
    padding: 24px 22px 26px;
  }

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

  .section {
    padding: 44px 20px 0;
  }

  .channel-index,
  .related-list,
  .checklist,
  .term-columns,
  .scope-compare,
  .feedback-paths,
  .error-list {
    grid-template-columns: minmax(0, 1fr);
  }

  .path-steps {
    grid-template-columns: minmax(0, 1fr);
    gap: 16px;
  }

  .rhythm-body {
    grid-template-columns: minmax(0, 1fr);
    gap: 22px;
  }

  .playlist-item {
    grid-template-columns: 44px minmax(0, 1fr);
    gap: 14px;
  }

  .playlist-item .item-media {
    grid-column: 1 / -1;
    order: 2;
  }

  .playlist-item .item-body {
    order: 3;
    grid-column: 1 / -1;
  }

  .playlist-item .item-num {
    order: 1;
    grid-column: 1 / -1;
    font-size: 20px;
  }

  .filter-points {
    grid-template-columns: minmax(0, 1fr);
    gap: 14px;
  }

  .channel-entry,
  .channel-entry:nth-child(even) {
    grid-template-columns: minmax(0, 1fr);
    gap: 14px;
  }

  .channel-entry:nth-child(even) .channel-entry-media {
    order: 0;
  }

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

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

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

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

  .error-main {
    padding: 40px 20px 0;
  }
}

@media (max-width: 640px) {
  .site-body {
    font-size: 15.5px;
  }

  .brand-name {
    font-size: 18px;
  }

  .brand-sub {
    font-size: 11px;
  }

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

  .page-head {
    margin-bottom: 26px;
    padding-bottom: 18px;
  }

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

  .hero-lead {
    font-size: 14.5px;
  }

  .hero-overlay {
    margin: -36px 0 0;
    padding: 20px 18px 22px;
  }

  .section-title,
  .block-title,
  .doc-section > h2,
  .content-section > .section-title {
    font-size: 20px;
  }

  .item-title {
    font-size: 17px;
  }

  .channel-name {
    font-size: 17px;
  }

  .channel-scene,
  .item-summary,
  .doc-section > p,
  .content-section > p,
  .section-intro {
    font-size: 14.5px;
  }

  .checklist-item {
    padding: 12px 0;
  }

  .step-item {
    grid-template-columns: 36px minmax(0, 1fr);
    gap: 12px;
  }

  .step-item .step-num {
    font-size: 18px;
  }

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

  .error-actions {
    align-items: stretch;
  }

  .error-btn {
    text-align: center;
  }

  .footer-inner {
    padding: 32px 20px 24px;
  }

  .footer-nav {
    grid-template-columns: minmax(0, 1fr);
    gap: 18px;
  }

  .side-nav-list,
  .sidebar-list,
  .sidebar-nav,
  .aside-nav-list {
    grid-template-columns: minmax(0, 1fr);
  }
}

/* 程序验收反馈：移动端正文优先 */
@media (max-width: 768px) {
  .site-main :is(.page-content, .main-content, .content-main) {
    order: 1;
  }

  .site-main :is(aside, .sidebar) {
    order: 2;
  }
}