/* ==========================================================================
   泡芙直播 sunprg.com — 全站样式表
   分组：base / layout / components / pages / responsive
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. base — 变量、重置、排版基础
   -------------------------------------------------------------------------- */

:root {
  --paper: #f7f3ea;
  --ink: #1c1a17;
  --red: #8f2c22;
  --indigo: #22405c;
  --olive: #4d5b33;
  --ochre: #b8891f;
  --rule: #d9d1c1;
  --muted: #6b6459;

  --serif: "Noto Serif SC", "Songti SC", SimSun, serif;
  --sans: "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;

  --wrap: 1180px;
  --gutter: 32px;
  --radius: 4px;
}

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

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

body {
  margin: 0;
  padding: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

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

p {
  margin: 0 0 0.9em;
}

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

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

a {
  color: var(--red);
  text-decoration: none;
  transition: color 160ms ease;
}

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

a:focus-visible,
button:focus-visible,
summary:focus-visible,
.table-scroll:focus-visible {
  outline: 2px solid var(--red);
  outline-offset: 2px;
}

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

figure {
  margin: 0;
}

figcaption {
  margin-top: 8px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--muted);
}

button {
  font: inherit;
  color: inherit;
  background: none;
  border: 0;
  cursor: pointer;
}

strong {
  font-weight: 700;
}

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

/* 期次标签：等宽字体小字，全站统一 */
.issue-tag {
  display: inline-block;
  font-family: var(--mono);
  font-size: 12px;
  line-height: 1.5;
  letter-spacing: 0.08em;
  color: var(--ochre);
  border: 1px solid var(--ochre);
  border-radius: 2px;
  padding: 1px 6px;
  white-space: nowrap;
}

/* 文字链接：下划线由左向右展开 */
.text-link,
.link-arrow,
.related-links-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 15px;
  font-weight: 600;
  color: var(--red);
  background-image: linear-gradient(var(--red), var(--red));
  background-repeat: no-repeat;
  background-position: 0 100%;
  background-size: 0 1px;
  transition: background-size 160ms ease, color 160ms ease;
}

.text-link::after,
.link-arrow::after {
  content: "\2192";
  font-family: var(--sans);
}

.text-link:hover,
.link-arrow:hover,
.related-links-item:hover {
  color: var(--red);
  background-size: 100% 1px;
}

/* --------------------------------------------------------------------------
   2. layout — 页头、主导航、主容器、面包屑、页标题、页脚
   -------------------------------------------------------------------------- */

.site-body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* --- 页头 --- */

.site-header {
  background: var(--paper);
  border-bottom: 1px solid var(--rule);
}

.channel-strip {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  height: 5px;
}

.strip-seg {
  display: block;
  height: 100%;
}

.strip-seg-1 {
  background: var(--red);
}

.strip-seg-2 {
  background: var(--indigo);
}

.strip-seg-3 {
  background: var(--olive);
}

.strip-seg-4 {
  background: var(--ochre);
}

.strip-seg-5 {
  background: var(--ink);
}

.header-inner {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 var(--gutter);
  display: flex;
  align-items: center;
  gap: 24px;
  min-height: 76px;
}

.brand-mark {
  flex: 0 0 auto;
  font-family: var(--serif);
  font-size: 30px;
  font-weight: 700;
  letter-spacing: 0.16em;
  color: var(--ink);
  line-height: 1.2;
}

.brand-mark:hover {
  color: var(--red);
}

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

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

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

.nav-list a {
  display: inline-block;
  padding: 6px 0;
  font-size: 15px;
  color: var(--ink);
  border-bottom: 2px solid transparent;
}

.nav-list a:hover {
  color: var(--red);
  border-bottom-color: var(--rule);
}

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

.header-inner > .issue-tag {
  flex: 0 0 auto;
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 10px;
  flex-direction: column;
  justify-content: space-between;
  align-items: center;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
}

.nav-toggle-bar {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--ink);
}

.mobile-nav {
  border-top: 1px solid var(--rule);
  background: var(--paper);
}

.mobile-nav[hidden] {
  display: none;
}

.mobile-nav-list {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 8px var(--gutter) 16px;
}

.mobile-nav-list li + li {
  border-top: 1px solid var(--rule);
}

.mobile-nav-list a {
  display: flex;
  align-items: center;
  min-height: 48px;
  font-size: 16px;
  color: var(--ink);
}

.mobile-nav-list a:hover {
  color: var(--red);
}

/* --- 主容器 --- */

.site-main {
  flex: 1 1 auto;
  width: 100%;
}

.home-main > section,
.inner-main > section,
.inner-main > div.page-header,
.inner-main > nav.breadcrumb,
.inner-main > div.page-shell {
  max-width: var(--wrap);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--gutter);
  padding-right: var(--gutter);
}

/* --- 面包屑 --- */

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding-top: 22px;
  font-size: 13px;
  color: var(--muted);
}

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

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

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

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

/* --- 页面标题区 --- */

.page-header {
  padding-top: 14px;
  padding-bottom: 0;
}

.page-title {
  font-size: 34px;
  line-height: 1.3;
  color: var(--ink);
  margin: 0;
}

/* --- 页脚 --- */

.site-footer {
  margin-top: 64px;
  border-top: 1px solid var(--rule);
  background: var(--paper);
  padding: 40px var(--gutter) 28px;
}

.footer-index {
  max-width: var(--wrap);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px 48px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--rule);
}

.footer-col h2 {
  font-size: 14px;
  font-family: var(--sans);
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--muted);
  margin-bottom: 10px;
}

.footer-col li + li {
  margin-top: 6px;
}

.footer-col a {
  font-size: 14px;
  color: var(--ink);
}

.footer-col a:hover {
  color: var(--red);
}

.footer-boundary {
  max-width: var(--wrap);
  margin: 20px auto 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
}

.footer-brand {
  max-width: var(--wrap);
  margin: 18px auto 0;
  padding-top: 18px;
  border-top: 1px solid var(--rule);
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 20px;
  font-size: 13px;
  color: var(--muted);
}

.footer-brand-name {
  font-family: var(--serif);
  font-size: 17px;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--ink);
  margin: 0;
}

.footer-brand-line,
.footer-copyright {
  margin: 0;
}

/* --------------------------------------------------------------------------
   3. components — 通用模块：区块头、结论条、列表、表格、折叠、链接组
   -------------------------------------------------------------------------- */

/* 区块头：编号标题 + 一行说明 */
.section-head {
  margin-bottom: 22px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--rule);
}

.section-head h2,
.inner-main section > h2 {
  font-size: 24px;
  line-height: 1.4;
}

.section-note,
.section-lead,
.section-desc,
.sec-desc {
  margin: 8px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
}

.section-lead {
  margin-bottom: 18px;
}

/* 编号前缀 */
.section-num,
.sec-num {
  font-family: var(--mono);
  font-size: 14px;
  font-weight: 400;
  letter-spacing: 0.06em;
  color: var(--red);
  margin-right: 10px;
}

/* 结论条 */
.conclusion-bar {
  border-left: 3px solid var(--red);
  padding: 14px 0 14px 20px;
  margin-bottom: 24px;
}

.conclusion-lead,
.conclusion-line,
.desk-conclusion-lead {
  font-size: 17px;
  line-height: 1.7;
  font-weight: 600;
  color: var(--ink);
  margin: 0 0 10px;
}

.conclusion-support,
.conclusion-list,
.conclusion-points {
  display: grid;
  gap: 8px;
}

.conclusion-support li,
.conclusion-list li,
.conclusion-points li {
  position: relative;
  padding-left: 16px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--muted);
}

.conclusion-support li::before,
.conclusion-list li::before,
.conclusion-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 6px;
  height: 6px;
  background: var(--red);
}

.conclusion-points li {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px;
}

.conclusion-points li .issue-tag {
  flex: 0 0 auto;
}

/* 紧凑新闻列表 */
.news-list {
  border-top: 1px solid var(--rule);
}

.news-item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  grid-template-areas:
    "tag title arrow"
    "tag desk arrow"
    "tag desc arrow";
  gap: 2px 16px;
  align-items: start;
  padding: 14px 0;
  border-bottom: 1px solid var(--rule);
}

.news-item .issue-tag {
  grid-area: tag;
  margin-top: 3px;
}

.news-title {
  grid-area: title;
  font-family: var(--serif);
  font-size: 17px;
  font-weight: 700;
  color: var(--ink);
}

.news-title:hover {
  color: var(--red);
}

.news-desk {
  grid-area: desk;
  font-size: 12px;
  font-family: var(--mono);
  letter-spacing: 0.06em;
  color: var(--olive);
}

.news-desc {
  grid-area: desc;
  font-size: 14px;
  line-height: 1.6;
  color: var(--muted);
}

.news-arrow {
  grid-area: arrow;
  align-self: center;
  font-size: 18px;
  color: var(--rule);
}

.news-item:hover .news-arrow {
  color: var(--red);
}

/* 表格 */
.table-scroll {
  overflow-x: auto;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  background: #fdfbf5;
}

.desk-table,
.term-table {
  width: 100%;
  min-width: 640px;
  border-collapse: collapse;
  font-size: 14px;
  line-height: 1.65;
}

.desk-table th,
.desk-table td,
.term-table th,
.term-table td {
  padding: 12px 14px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--rule);
}

.desk-table thead th,
.term-table thead th {
  font-family: var(--sans);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--ink);
  background: #efe9dc;
  white-space: nowrap;
}

.desk-table tbody th,
.term-table tbody th {
  font-family: var(--serif);
  font-size: 15px;
  font-weight: 700;
  color: var(--ink);
  white-space: nowrap;
}

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

.desk-table tbody tr:nth-child(even),
.term-table tbody tr:nth-child(even) {
  background: #fbf7ee;
}

.table-notes,
.table-limits .limits-list {
  margin-top: 14px;
  display: grid;
  gap: 6px;
}

.table-notes li,
.table-limits li,
.table-limit {
  position: relative;
  padding-left: 16px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
}

.table-notes li::before,
.table-limits li::before,
.table-limit::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.75em;
  width: 6px;
  height: 1px;
  background: var(--red);
}

.table-limits h3 {
  font-size: 15px;
  margin-bottom: 8px;
}

/* 折叠 */
.faq-item,
.prep-group {
  border-bottom: 1px solid var(--rule);
}

.faq-item summary,
.prep-group summary {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 48px;
  padding: 12px 30px 12px 0;
  position: relative;
  font-family: var(--serif);
  font-size: 16px;
  font-weight: 700;
  color: var(--ink);
  cursor: pointer;
  list-style: none;
}

.faq-item summary::-webkit-details-marker,
.prep-group summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after,
.prep-group summary::after {
  content: "+";
  position: absolute;
  right: 4px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--mono);
  font-size: 18px;
  color: var(--red);
}

.faq-item[open] summary::after,
.prep-group[open] summary::after {
  content: "\2212";
}

.faq-item summary:hover,
.prep-group summary:hover {
  color: var(--red);
}

.faq-item p {
  padding: 0 30px 16px 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--muted);
}

/* 链接对 / 链接组 */
.link-pair {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}

.link-pair-item {
  border-top: 2px solid var(--ink);
  padding-top: 14px;
}

.link-pair-item h3 {
  font-size: 18px;
  margin-bottom: 8px;
}

.link-pair-item p {
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
  margin-bottom: 12px;
}

/* 图片容器统一约束 */
.checker-media,
.prep-figure,
.distinguish-figure,
.adjust-figure,
.about-position-figure,
.desk-figure,
.log-media {
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  overflow: hidden;
  background: #efe9dc;
}

.checker-media img,
.prep-figure img,
.distinguish-figure img,
.adjust-figure img,
.about-position-figure img,
.desk-figure img,
.log-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.checker-media figcaption,
.prep-figure figcaption,
.distinguish-figure figcaption,
.adjust-figure figcaption,
.about-position-figure figcaption,
.desk-figure figcaption,
.log-media figcaption {
  padding: 8px 12px;
  margin: 0;
  border-top: 1px solid var(--rule);
  background: #fdfbf5;
}

/* --------------------------------------------------------------------------
   4. pages — 首页
   -------------------------------------------------------------------------- */

/* 首屏标题区 */
.hero-intro {
  display: grid;
  grid-template-columns: minmax(0, 7fr) minmax(0, 3fr);
  gap: 32px;
  align-items: start;
  padding-top: 34px;
  padding-bottom: 26px;
}

.hero-intro-text {
  min-width: 0;
}

.kicker {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--red);
  margin: 0 0 10px;
}

.hero-intro-text h1 {
  font-size: 40px;
  line-height: 1.3;
  margin-bottom: 14px;
}

.hero-lead {
  font-size: 16px;
  line-height: 1.75;
  color: var(--muted);
  max-width: 640px;
}

.hero-intro-text .text-link {
  margin-top: 6px;
}

.hero-brief {
  border-left: 1px solid var(--rule);
  padding-left: 22px;
}

.brief-title {
  font-size: 15px;
  font-family: var(--sans);
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--muted);
  margin-bottom: 12px;
}

.brief-list {
  display: grid;
  gap: 12px;
}

.brief-list li {
  display: grid;
  gap: 4px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--rule);
}

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

.brief-list .issue-tag {
  justify-self: start;
}

.brief-text {
  font-size: 14px;
  line-height: 1.65;
  color: var(--ink);
}

/* 首屏主视觉 */
.hero-figure {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.hero-figure img {
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 7;
  object-fit: cover;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  background: #efe9dc;
}

.hero-figure figcaption {
  font-size: 13px;
  color: var(--muted);
}

/* 频道色标条 */
.channel-strip-nav {
  max-width: var(--wrap);
  margin: 16px auto 0;
  padding: 0 var(--gutter);
}

.channel-strip-list {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 1px;
  background: var(--rule);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  overflow: hidden;
}

.strip-link {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 8px 6px;
  font-size: 13px;
  font-weight: 600;
  line-height: 1.4;
  text-align: center;
  color: #fdfbf5;
}

.strip-link-1 {
  background: var(--red);
}

.strip-link-2 {
  background: var(--indigo);
}

.strip-link-3 {
  background: var(--olive);
}

.strip-link-4 {
  background: var(--ochre);
}

.strip-link-5 {
  background: var(--ink);
}

.strip-link:hover {
  color: #ffffff;
  filter: brightness(1.12);
}

/* 频道版面导读 — 棋盘图文行 */
.desk-guide {
  padding-top: 48px;
}

.checker-row {
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  gap: 32px;
  align-items: start;
  padding: 26px 0;
  border-top: 1px solid var(--rule);
}

.checker-row:first-of-type {
  border-top: 0;
  padding-top: 4px;
}

.checker-row.checker-row-reverse {
  grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
}

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

.checker-media img {
  aspect-ratio: 4 / 3;
}

.checker-text {
  min-width: 0;
}

.checker-text h2 {
  font-size: 22px;
  margin-bottom: 10px;
}

.checker-text > p {
  font-size: 15px;
  line-height: 1.75;
  color: var(--muted);
}

.point-list {
  display: grid;
  gap: 6px;
  margin: 14px 0 16px;
}

.point-list li {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink);
}

.point-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 6px;
  height: 6px;
  background: var(--red);
}

/* 本期编排摘录 */
.desk-excerpt {
  padding-top: 48px;
}

.section-foot {
  margin-top: 14px;
  font-size: 14px;
  color: var(--muted);
}

/* 频道对照表 */
.desk-table-section {
  padding-top: 48px;
}

/* 延伸阅读双栏：标题视觉隐藏，两个 .read-more-col 是独立内容容器 */
.read-more {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 32px;
  align-items: start;
  padding-top: 48px;
}

.read-more > h2 {
  grid-column: 1 / -1;
}

.read-more-col {
  min-width: 0;
  border-top: 2px solid var(--ink);
  padding-top: 14px;
}

.read-more-col h3 {
  font-size: 18px;
  margin-bottom: 8px;
}

.read-more-col p {
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
  margin-bottom: 8px;
}

.read-more-col .text-link {
  margin-top: 4px;
}

/* 编辑说明块 */
.desk-note {
  display: grid;
  grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  gap: 32px;
  align-items: start;
  padding-top: 48px;
}

.desk-note-text {
  min-width: 0;
}

.desk-note-text h2 {
  font-size: 24px;
  margin-bottom: 12px;
}

.desk-note-text p {
  font-size: 15px;
  line-height: 1.75;
  color: var(--muted);
}

.desk-note-actions {
  min-width: 0;
  counter-reset: note-act;
  display: grid;
  gap: 12px;
  border-left: 1px solid var(--rule);
  padding-left: 22px;
}

.desk-note-actions li {
  counter-increment: note-act;
  position: relative;
  padding-left: 30px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink);
}

.desk-note-actions li::before {
  content: counter(note-act, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 0;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--red);
}

.desk-note > .section-foot {
  grid-column: 1 / -1;
}

/* 常见问题 */
.faq-section {
  padding-top: 48px;
}

/* 更正入口条 */
.entry-bar {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
  margin-top: 48px;
  padding: 22px 24px;
  background: #efe9dc;
  border-radius: var(--radius);
}

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

.entry-col h2 {
  font-size: 18px;
  margin-bottom: 8px;
}

.entry-col p {
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
  margin-bottom: 10px;
}

/* --------------------------------------------------------------------------
   5. pages — 内页共用页标题区变体
   -------------------------------------------------------------------------- */

.page-head {
  display: grid;
  grid-template-columns: minmax(0, 7fr) minmax(0, 3fr);
  gap: 24px;
  align-items: start;
  padding-top: 14px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--rule);
}

.page-head-main {
  min-width: 0;
}

.page-head-summary,
.page-head-lead,
.page-summary,
.page-lead {
  font-size: 15px;
  line-height: 1.75;
  color: var(--muted);
  margin: 0 0 6px;
}

.page-head-summary:last-child,
.page-head-lead:last-child,
.page-summary:last-child,
.page-lead:last-child {
  margin-bottom: 0;
}

.page-head-issue,
.issue-tag-side {
  justify-self: end;
  align-self: start;
}

.page-title-block,
.page-title-area {
  display: grid;
  grid-template-columns: minmax(0, 7fr) minmax(0, 3fr);
  gap: 24px;
  align-items: start;
  padding-top: 14px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--rule);
}

.page-title-main,
.page-title-text {
  min-width: 0;
}

.page-issue,
.page-title-tag {
  justify-self: end;
  align-self: start;
}

/* 内页通用区块间距 */
.inner-main > section {
  padding-top: 40px;
}

.inner-main > section:first-of-type {
  padding-top: 0;
}

.inner-main > section.page-head,
.inner-main > section.page-title-block,
.inner-main > section.page-title-area {
  padding-top: 14px;
}

/* --------------------------------------------------------------------------
   6. pages — 频道版面 channel-desks.html
   -------------------------------------------------------------------------- */

.desk-conclusion {
  padding-top: 32px;
}

.desk-conclusion h2,
.desk-entries h2,
.desk-distinguish h2,
.desk-links h2 {
  font-size: 24px;
  margin-bottom: 10px;
}

.desk-conclusion .conclusion-list {
  margin-top: 14px;
}

.desk-entries {
  padding-top: 40px;
}

.desk-entry {
  display: grid;
  grid-template-columns: minmax(0, 3fr) minmax(0, 9fr);
  gap: 24px;
  padding: 24px 0;
  border-top: 1px solid var(--rule);
}

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

.desk-entry-label {
  min-width: 0;
  display: grid;
  grid-template-columns: 6px minmax(0, 1fr);
  gap: 2px 12px;
  align-content: start;
}

.desk-swatch {
  grid-row: 1 / span 2;
  display: block;
  width: 6px;
  height: 100%;
  min-height: 44px;
  border-radius: 1px;
}

.desk-swatch-1 {
  background: var(--red);
}

.desk-swatch-2 {
  background: var(--indigo);
}

.desk-swatch-3 {
  background: var(--olive);
}

.desk-swatch-4 {
  background: var(--ochre);
}

.desk-swatch-5 {
  background: var(--ink);
}

.desk-entry-name {
  font-size: 22px;
  line-height: 1.35;
}

.desk-entry-tag {
  grid-column: 2;
  font-size: 13px;
  line-height: 1.6;
  color: var(--muted);
  margin: 4px 0 0;
}

.desk-entry-body {
  min-width: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px 28px;
}

.desk-block {
  min-width: 0;
}

.desk-block h4 {
  font-family: var(--sans);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--red);
  margin-bottom: 4px;
}

.desk-block p {
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
  margin: 0;
}

.desk-table-section .section-lead {
  margin-top: 8px;
}

.table-limits {
  margin-top: 16px;
}

.desk-distinguish {
  padding-top: 40px;
}

.distinguish-layout {
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  gap: 32px;
  align-items: start;
}

.distinguish-figure {
  min-width: 0;
}

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

.distinguish-list {
  min-width: 0;
  counter-reset: dist;
  display: grid;
  gap: 14px;
}

.distinguish-list li {
  counter-increment: dist;
  position: relative;
  padding-left: 34px;
}

.distinguish-list li::before {
  content: counter(dist, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 1px;
  font-family: var(--mono);
  font-size: 13px;
  color: var(--red);
}

.distinguish-list h3 {
  font-size: 16px;
  margin-bottom: 4px;
}

.distinguish-list p {
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
  margin: 0;
}

.desk-links {
  padding-top: 40px;
}

/* --------------------------------------------------------------------------
   7. pages — 本期编排 weekly-desk.html
   -------------------------------------------------------------------------- */

.issue-panel {
  padding-top: 40px;
}

.tablist-wrap {
  margin-bottom: 18px;
  overflow-x: auto;
}

.issue-tablist {
  display: flex;
  gap: 4px;
  border-bottom: 1px solid var(--rule);
  min-width: max-content;
}

.issue-tab {
  padding: 10px 18px;
  font-size: 15px;
  color: var(--muted);
  border-bottom: 2px solid transparent;
  white-space: nowrap;
}

.issue-tab:hover {
  color: var(--ink);
}

.issue-tab.is-active {
  color: var(--red);
  font-weight: 700;
  border-bottom-color: var(--red);
}

.issue-tabpanel[hidden] {
  display: none;
}

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

.desk-row {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  grid-template-areas:
    "tag title channel"
    "tag note note";
  gap: 3px 16px;
  align-items: baseline;
  padding: 14px 0;
  border-bottom: 1px solid var(--rule);
}

.desk-row .issue-tag {
  grid-area: tag;
}

.desk-row-title {
  grid-area: title;
  font-family: var(--serif);
  font-size: 17px;
  font-weight: 700;
  color: var(--ink);
}

.desk-row-title:hover {
  color: var(--red);
}

.desk-row-channel {
  grid-area: channel;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--olive);
  white-space: nowrap;
}

.desk-row-note {
  grid-area: note;
  font-size: 14px;
  line-height: 1.65;
  color: var(--muted);
}

.desk-basis {
  padding-top: 40px;
}

.basis-list {
  counter-reset: basis;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px 32px;
}

.basis-item {
  counter-increment: basis;
  position: relative;
  padding-left: 40px;
  min-width: 0;
}

.basis-item::before {
  content: counter(basis, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 2px;
  font-family: var(--mono);
  font-size: 16px;
  color: var(--red);
}

.basis-item h3 {
  font-size: 17px;
  margin-bottom: 6px;
}

.basis-item p {
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
  margin: 0;
}

.desk-notes {
  padding-top: 40px;
}

.desk-figure {
  margin-bottom: 18px;
}

.desk-figure img {
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 7;
  object-fit: cover;
}

.desk-notes > p {
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
  max-width: 760px;
}

/* --------------------------------------------------------------------------
   8. pages — 观看准备 viewing-prep.html
   -------------------------------------------------------------------------- */

.page-shell {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.inner-main > section.prep-conclusion,
.inner-main > section.prep-media,
.inner-main > section.prep-groups,
.inner-main > section.prep-check,
.inner-main > section.prep-routing {
  max-width: none;
  padding-left: 0;
  padding-right: 0;
}

.prep-conclusion .page-shell,
.prep-media .page-shell,
.prep-groups .page-shell,
.prep-check .page-shell,
.prep-routing .page-shell {
  padding-top: 40px;
}

.prep-conclusion h2,
.prep-media-text h2,
.prep-groups h2,
.prep-check h2,
.prep-routing h2 {
  font-size: 24px;
  margin-bottom: 12px;
}

.prep-conclusion .conclusion-list {
  margin-top: 14px;
}

.conclusion-item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 10px;
  align-items: baseline;
  padding-left: 0;
}

.conclusion-item::before {
  display: none;
}

.conclusion-item p {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--muted);
}

.prep-media-row {
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  gap: 32px;
  align-items: start;
}

.prep-media-row.prep-media-row-reverse {
  grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
}

.prep-figure {
  min-width: 0;
}

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

.prep-media-text {
  min-width: 0;
}

.prep-media-text p {
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
}

.prep-groups .section-desc,
.prep-check .section-desc,
.prep-routing .section-desc {
  margin-bottom: 18px;
}

.prep-group-summary .group-num {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--red);
  flex: 0 0 auto;
}

.prep-item-list {
  padding: 0 0 16px;
  display: grid;
  gap: 12px;
}

.prep-item {
  border-left: 2px solid var(--rule);
  padding: 2px 0 2px 14px;
}

.prep-item-name {
  font-size: 15px;
  font-weight: 700;
  color: var(--ink);
  margin: 0 0 2px;
}

.prep-item-fit,
.prep-item-unfit {
  font-size: 14px;
  line-height: 1.65;
  color: var(--muted);
  margin: 0;
}

.prep-item-fit::before {
  content: "适用：";
  color: var(--olive);
  font-weight: 600;
}

.prep-item-unfit::before {
  content: "不适用：";
  color: var(--red);
  font-weight: 600;
}

.prep-check-list {
  counter-reset: chk;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.prep-check-step {
  counter-increment: chk;
  position: relative;
  padding: 16px 16px 16px 18px;
  border-top: 2px solid var(--ink);
  background: #efe9dc;
  border-radius: var(--radius);
  min-width: 0;
}

.prep-check-step::before {
  content: counter(chk, decimal-leading-zero);
  display: block;
  font-family: var(--mono);
  font-size: 13px;
  color: var(--red);
  margin-bottom: 6px;
}

.prep-check-action {
  font-size: 15px;
  font-weight: 600;
  line-height: 1.65;
  color: var(--ink);
  margin: 0 0 6px;
}

.prep-check-result {
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
  margin: 0;
}

.prep-routing-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.prep-routing-card {
  min-width: 0;
  border-top: 1px solid var(--rule);
  padding-top: 14px;
}

.prep-routing-card h3 {
  font-size: 17px;
  margin-bottom: 6px;
}

.prep-routing-card p {
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
  margin-bottom: 10px;
}

/* 滚动出现增强：仅在支持动效时加入，初始始终可见 */
.reveal {
  opacity: 1;
}

@media (prefers-reduced-motion: no-preference) {
  .reveal {
    animation: reveal-in 200ms ease-out both;
  }
}

@keyframes reveal-in {
  from {
    opacity: 0.6;
  }
  to {
    opacity: 1;
  }
}

/* --------------------------------------------------------------------------
   9. pages — 用语与口径 terms.html
   -------------------------------------------------------------------------- */

.term-table-section,
.term-adjust-section,
.related-links {
  padding-top: 40px;
}

.term-table-section h2,
.term-adjust-section h2,
.related-links h2 {
  font-size: 24px;
  margin-bottom: 10px;
}

.term-table-section .section-note {
  margin-bottom: 16px;
}

.term-table tbody th {
  white-space: nowrap;
}

.table-limit {
  margin-top: 12px;
}

.adjust-body {
  display: grid;
  grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  gap: 32px;
  align-items: start;
  margin-top: 16px;
}

.adjust-text {
  min-width: 0;
}

.adjust-text h3 {
  font-size: 17px;
  margin: 0 0 6px;
}

.adjust-text h3 + p {
  margin-bottom: 16px;
}

.adjust-text p {
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
}

.adjust-figure {
  min-width: 0;
}

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

.related-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px 32px;
  margin-top: 16px;
}

.related-item {
  min-width: 0;
  border-top: 1px solid var(--rule);
  padding-top: 12px;
}

.related-item a {
  font-family: var(--serif);
  font-size: 17px;
  font-weight: 700;
  color: var(--red);
}

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

.related-item p {
  margin: 6px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
}

/* 页内底部相关导航条 */
nav.related-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 20px;
  margin-top: 32px;
  padding: 16px 20px;
  background: #efe9dc;
  border-radius: var(--radius);
}

.related-links-label {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.related-links-item {
  font-size: 14px;
}

/* --------------------------------------------------------------------------
   10. pages — 更正与反馈 corrections.html
   -------------------------------------------------------------------------- */

.feedback-types,
.feedback-info,
.feedback-flow,
.correction-log,
.feedback-scope {
  padding-top: 40px;
}

.feedback-types h2,
.feedback-info h2,
.feedback-flow h2,
.correction-log h2,
.feedback-scope h2 {
  font-size: 24px;
  margin-bottom: 10px;
}

.feedback-types .sec-desc,
.feedback-info .sec-desc,
.feedback-flow .sec-desc,
.correction-log .sec-desc,
.feedback-scope .sec-desc {
  margin-bottom: 18px;
}

.type-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px 28px;
  counter-reset: ftype;
}

.type-list li {
  counter-increment: ftype;
  position: relative;
  padding: 14px 14px 14px 16px;
  border-left: 3px solid var(--red);
  background: #fdfbf5;
  border-radius: var(--radius);
  min-width: 0;
}

.type-list li::before {
  content: counter(ftype, decimal-leading-zero);
  display: block;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--red);
  margin-bottom: 4px;
}

.type-list h3 {
  font-size: 16px;
  margin-bottom: 4px;
}

.type-list p {
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
  margin: 0;
}

.info-list {
  counter-reset: finfo;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px 32px;
}

.info-list li {
  counter-increment: finfo;
  position: relative;
  padding-left: 38px;
  min-width: 0;
}

.info-list li::before {
  content: counter(finfo, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 2px;
  font-family: var(--mono);
  font-size: 15px;
  color: var(--red);
}

.info-list h3 {
  font-size: 16px;
  margin-bottom: 4px;
}

.info-list p {
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
  margin: 0;
}

.flow-steps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.flow-step {
  min-width: 0;
  border-top: 2px solid var(--ink);
  padding-top: 14px;
}

.flow-step .step-num {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--red);
  margin: 0 0 6px;
}

.flow-step h3 {
  font-size: 17px;
  margin-bottom: 6px;
}

.flow-step p {
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
  margin: 0;
}

.log-media {
  margin-bottom: 18px;
}

.log-media img {
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 7;
  object-fit: cover;
}

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

.log-list li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  grid-template-areas:
    "tag title"
    "tag text"
    "tag link";
  gap: 3px 16px;
  align-items: baseline;
  padding: 14px 0;
  border-bottom: 1px solid var(--rule);
}

.log-list .issue-tag {
  grid-area: tag;
}

.log-list h3 {
  grid-area: title;
  font-size: 16px;
}

.log-list p {
  grid-area: text;
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
  margin: 0;
}

.log-list a {
  grid-area: link;
  justify-self: start;
  font-size: 13px;
  color: var(--red);
}

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

.feedback-scope > .sec-desc {
  max-width: 760px;
}

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

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

.scope-item h3 {
  font-size: 16px;
  margin-bottom: 6px;
}

.scope-item p {
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
  margin-bottom: 8px;
}

.scope-item a {
  font-size: 13px;
  color: var(--red);
}

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

.related-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
  margin-top: 16px;
}

.related-grid .related-item h3 {
  font-size: 16px;
  margin-bottom: 6px;
}

.related-grid .related-item h3 a {
  font-family: var(--serif);
  color: var(--red);
}

.related-grid .related-item h3 a:hover {
  color: var(--ink);
}

.related-grid .related-item p {
  margin: 0 0 8px;
}

.related-grid .related-item a:last-child {
  font-size: 13px;
}

/* --------------------------------------------------------------------------
   11. pages — 编辑部说明 about-desk.html
   -------------------------------------------------------------------------- */

.about-position,
.about-scope,
.about-principles,
.about-boundary,
.about-continue {
  padding-top: 40px;
}

.about-position {
  display: grid;
  grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  gap: 32px;
  align-items: start;
}

.about-position-text {
  min-width: 0;
}

.about-position-text h2,
.about-scope h2,
.about-principles h2,
.about-boundary h2,
.about-continue h2 {
  font-size: 24px;
  margin-bottom: 12px;
}

.about-position-text p {
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
}

.about-position-figure {
  min-width: 0;
}

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

.about-scope .scope-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.scope-example {
  font-family: var(--mono);
  font-size: 12px !important;
  letter-spacing: 0.04em;
  color: var(--ochre) !important;
  margin: 0 !important;
}

.principle-list {
  counter-reset: prin;
  display: grid;
  gap: 16px;
}

.principle-list li {
  counter-increment: prin;
  position: relative;
  padding-left: 44px;
  min-width: 0;
}

.principle-list li::before {
  content: counter(prin, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 1px;
  font-family: var(--mono);
  font-size: 16px;
  color: var(--red);
}

.principle-list h3 {
  font-size: 17px;
  margin-bottom: 4px;
}

.principle-list p {
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
  margin: 0;
}

.boundary-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px 28px;
}

.boundary-list li {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink);
}

.boundary-list li::before {
  content: "\00d7";
  position: absolute;
  left: 0;
  top: 0;
  font-family: var(--mono);
  color: var(--red);
}

.continue-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
  margin-top: 16px;
}

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

.continue-item h3 {
  font-size: 17px;
  margin-bottom: 6px;
}

.continue-item p {
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
  margin-bottom: 10px;
}

/* --------------------------------------------------------------------------
   12. pages — 404
   -------------------------------------------------------------------------- */

.error-main {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 64px var(--gutter);
}

.error-inner {
  max-width: 620px;
  width: 100%;
}

.error-code {
  font-family: var(--mono);
  font-size: 64px;
  line-height: 1;
  letter-spacing: 0.04em;
  color: var(--red);
  margin: 0 0 12px;
}

.error-inner h1 {
  font-size: 30px;
  margin-bottom: 12px;
}

.error-lead {
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
  margin-bottom: 24px;
}

.error-next h2 {
  font-size: 18px;
  margin-bottom: 10px;
}

.error-links {
  display: grid;
  gap: 8px;
}

.error-links li {
  border-bottom: 1px solid var(--rule);
  padding-bottom: 8px;
}

.error-links a {
  font-size: 15px;
  color: var(--ink);
}

.error-links a:hover {
  color: var(--red);
}

.error-back {
  margin-top: 24px;
}

.error-home-link {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 18px;
  font-size: 15px;
  font-weight: 600;
  color: #fdfbf5;
  background: var(--red);
  border-radius: var(--radius);
}

.error-home-link:hover {
  color: #ffffff;
  filter: brightness(1.1);
}

/* --------------------------------------------------------------------------
   13. responsive — 1024 / 768 / 560
   -------------------------------------------------------------------------- */

@media (max-width: 1024px) {
  :root {
    --gutter: 24px;
  }

  .header-inner {
    gap: 16px;
  }

  .nav-list {
    gap: 4px 14px;
  }

  .nav-list a {
    font-size: 14px;
  }

  .hero-intro {
    grid-template-columns: minmax(0, 6fr) minmax(0, 4fr);
    gap: 24px;
  }

  .hero-intro-text h1 {
    font-size: 34px;
  }

  .checker-row,
  .checker-row.checker-row-reverse,
  .desk-note,
  .about-position,
  .prep-media-row,
  .prep-media-row.prep-media-row-reverse,
  .distinguish-layout,
  .adjust-body {
    grid-template-columns: minmax(0, 1fr);
    gap: 20px;
  }

  .desk-entry {
    grid-template-columns: minmax(0, 1fr);
    gap: 12px;
  }

  .desk-entry-label {
    grid-template-columns: 6px minmax(0, 1fr);
  }

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

  .type-list,
  .prep-routing-grid,
  .flow-steps,
  .scope-grid,
  .continue-grid,
  .related-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .desk-note-actions {
    border-left: 0;
    border-top: 1px solid var(--rule);
    padding-left: 0;
    padding-top: 16px;
  }
}

@media (max-width: 768px) {
  :root {
    --gutter: 20px;
  }

  body {
    font-size: 15px;
  }

  /* 页头切换为汉堡导航 */
  .header-inner {
    min-height: 64px;
    flex-wrap: nowrap;
    gap: 12px;
  }

  .brand-mark {
    font-size: 24px;
    letter-spacing: 0.12em;
    flex: 1 1 auto;
  }

  .header-inner > .issue-tag {
    display: none;
  }

  .primary-nav.site-nav {
    flex: 0 0 auto;
    order: 3;
  }

  .nav-toggle {
    display: flex;
  }

  .nav-list {
    display: none;
  }

  .nav-list.is-open {
    display: block;
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    z-index: 20;
    background: var(--paper);
    border-top: 1px solid var(--rule);
    border-bottom: 1px solid var(--rule);
    padding: 8px var(--gutter) 16px;
    max-height: 70vh;
    overflow-y: auto;
  }

  .site-header {
    position: relative;
  }

  .nav-list.is-open li + li {
    border-top: 1px solid var(--rule);
  }

  .nav-list.is-open a {
    display: flex;
    align-items: center;
    min-height: 48px;
    font-size: 16px;
    border-bottom: 0;
  }

  .nav-list.is-open a.is-current {
    color: var(--red);
  }

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

  .hero-intro {
    grid-template-columns: minmax(0, 1fr);
    padding-top: 24px;
    padding-bottom: 20px;
  }

  .hero-intro-text h1 {
    font-size: 28px;
  }

  .hero-brief {
    border-left: 0;
    border-top: 1px solid var(--rule);
    padding-left: 0;
    padding-top: 16px;
  }

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

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

  .strip-link {
    min-height: 44px;
    font-size: 13px;
  }

  .checker-row {
    padding: 20px 0;
  }

  .checker-text h2 {
    font-size: 20px;
  }

  .news-item {
    grid-template-columns: minmax(0, 1fr) auto;
    grid-template-areas:
      "tag arrow"
      "title arrow"
      "desk arrow"
      "desc arrow";
    gap: 2px 12px;
  }

  .news-item .issue-tag {
    justify-self: start;
  }

  .desk-row {
    grid-template-columns: minmax(0, 1fr);
    grid-template-areas:
      "tag"
      "title"
      "channel"
      "note";
    gap: 4px;
  }

  .desk-row .issue-tag {
    justify-self: start;
  }

  .desk-row-channel {
    white-space: normal;
  }

  .page-head,
  .page-title-block,
  .page-title-area {
    grid-template-columns: minmax(0, 1fr);
    gap: 10px;
    padding-top: 12px;
    padding-bottom: 18px;
  }

  .page-head-issue,
  .issue-tag-side,
  .page-issue,
  .page-title-tag {
    justify-self: start;
  }

  .read-more,
  .link-pair,
  .entry-bar,
  .basis-list,
  .info-list,
  .boundary-list,
  .related-list {
    grid-template-columns: minmax(0, 1fr);
  }

  .desk-entry-body {
    grid-template-columns: minmax(0, 1fr);
    gap: 12px;
  }

  .desk-entry-name {
    font-size: 20px;
  }

  .about-scope .scope-grid,
  .type-list,
  .prep-check-list,
  .prep-routing-grid,
  .flow-steps,
  .scope-grid,
  .continue-grid,
  .related-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .prep-check-list {
    gap: 14px;
  }

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

  .footer-brand {
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
  }

  .error-main {
    padding: 40px var(--gutter);
  }

  .error-code {
    font-size: 48px;
  }
}

@media (max-width: 560px) {
  :root {
    --gutter: 18px;
  }

  .hero-intro-text h1 {
    font-size: 25px;
  }

  .page-title {
    font-size: 23px;
  }

  .section-head h2,
  .inner-main section > h2,
  .desk-note-text h2,
  .prep-conclusion h2,
  .prep-media-text h2,
  .prep-groups h2,
  .prep-check h2,
  .prep-routing h2,
  .term-table-section h2,
  .term-adjust-section h2,
  .related-links h2,
  .feedback-types h2,
  .feedback-info h2,
  .feedback-flow h2,
  .correction-log h2,
  .feedback-scope h2,
  .about-position-text h2,
  .about-scope h2,
  .about-principles h2,
  .about-boundary h2,
  .about-continue h2 {
    font-size: 20px;
  }

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

  .strip-link {
    justify-content: flex-start;
    padding-left: 14px;
    text-align: left;
  }

  .conclusion-bar {
    padding-left: 14px;
  }

  .conclusion-lead,
  .conclusion-line,
  .desk-conclusion-lead {
    font-size: 16px;
  }

  .news-title,
  .desk-row-title {
    font-size: 16px;
  }

  .entry-bar {
    padding: 18px 16px;
  }

  .issue-tab {
    padding: 10px 14px;
    font-size: 14px;
  }

  .log-list li {
    grid-template-columns: minmax(0, 1fr);
    grid-template-areas:
      "tag"
      "title"
      "text"
      "link";
    gap: 4px;
  }

  .log-list .issue-tag {
    justify-self: start;
  }

  .principle-list li {
    padding-left: 34px;
  }

  .error-inner h1 {
    font-size: 24px;
  }
}