/* ==========================================================================
   天美轻量版 · 全站样式
   分组：base / layout / components / pages / responsive
   ========================================================================== */

/* --------------------------------------------------------------------------
   base
   -------------------------------------------------------------------------- */
:root {
  --pine: #1C3A32;
  --moss: #2E6B5A;
  --clay: #D2763F;
  --linen: #F4EFE4;
  --straw: #E2D9C7;
  --ink: #4A5A52;
  --paper: #FBF8F1;
  --shell: 1120px;
  --reading: 720px;
  --line: 1px solid var(--straw);
  --font-serif: "Songti SC", "SimSun", "Source Han Serif SC", "Noto Serif CJK SC", serif;
  --font-sans: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Source Han Sans SC", "Noto Sans CJK SC", sans-serif;
}

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

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

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

h1,
h2,
h3,
h4 {
  margin: 0;
  font-family: var(--font-serif);
  font-weight: 600;
  color: var(--pine);
  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(--moss);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover,
a:focus-visible {
  color: var(--clay);
}

a:focus-visible,
button:focus-visible,
summary:focus-visible {
  outline: 2px solid var(--clay);
  outline-offset: 3px;
}

strong {
  color: var(--pine);
  font-weight: 600;
}

figure {
  margin: 0;
}

figcaption {
  margin-top: 10px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink);
}

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

.skip-link {
  position: absolute;
  left: 16px;
  top: -60px;
  z-index: 60;
  padding: 10px 18px;
  background: var(--pine);
  color: var(--linen);
  border-radius: 4px;
  transition: top 0.2s ease;
}

.skip-link:focus {
  top: 12px;
  color: var(--linen);
}

/* --------------------------------------------------------------------------
   layout · 页头与更新批次条
   -------------------------------------------------------------------------- */
.site-header {
  background: var(--pine);
  color: var(--linen);
  border-bottom: 1px solid rgba(244, 239, 228, 0.16);
}

.header-inner {
  max-width: var(--shell);
  margin: 0 auto;
  padding: 18px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 600;
  color: var(--linen);
  white-space: nowrap;
}

.brand:hover,
.brand:focus-visible {
  color: #F0C9A8;
}

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

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

.nav-list a {
  display: inline-block;
  padding: 6px 0;
  font-size: 15px;
  color: rgba(244, 239, 228, 0.82);
  border-bottom: 2px solid transparent;
}

.nav-list a:hover,
.nav-list a:focus-visible {
  color: var(--linen);
  border-bottom-color: var(--clay);
}

.nav-list a.is-current {
  color: var(--linen);
  border-bottom-color: var(--clay);
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 0;
  background: transparent;
  border: 1px solid rgba(244, 239, 228, 0.4);
  border-radius: 4px;
  cursor: pointer;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
}

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

/* 更新批次条 */
.batch-bar {
  max-width: var(--shell);
  margin: 0 auto;
  padding: 10px 24px 12px;
  display: flex;
  align-items: center;
  gap: 16px;
  border-top: 1px solid rgba(244, 239, 228, 0.14);
}

.batch-label {
  flex: 0 0 auto;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: rgba(244, 239, 228, 0.6);
}

.batch-list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 26px;
  font-size: 13px;
  line-height: 1.6;
}

.batch-list a {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  color: rgba(244, 239, 228, 0.78);
}

.batch-list a:hover,
.batch-list a:focus-visible {
  color: #F0C9A8;
}

.batch-mark {
  font-family: var(--font-serif);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--clay);
}

/* 主内容与页脚容器 */
.site-main {
  display: block;
}

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

.home-main {
  max-width: var(--shell);
  margin: 0 auto;
  padding: 0 24px 72px;
}

/* 面包屑 */
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: 20px 0 0;
  font-size: 13px;
  color: var(--ink);
}

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

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

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

/* 页面标题区 */
.page-header {
  padding: 22px 0 24px;
  border-bottom: var(--line);
}

.page-title {
  font-size: clamp(26px, 3.2vw, 36px);
  font-weight: 600;
  color: var(--pine);
}

/* 页脚 */
.site-footer {
  background: var(--pine);
  color: rgba(244, 239, 228, 0.78);
  padding: 48px 0 0;
}

.footer-inner {
  max-width: var(--shell);
  margin: 0 auto;
  padding: 0 24px 36px;
  display: grid;
  grid-template-columns: 1.4fr repeat(4, 1fr);
  gap: 32px 28px;
}

.footer-name {
  font-family: var(--font-serif);
  font-size: 20px;
  font-weight: 600;
  color: var(--linen);
}

.footer-desc {
  margin-top: 10px;
  font-size: 14px;
  line-height: 1.8;
  color: rgba(244, 239, 228, 0.66);
}

.footer-title {
  font-family: var(--font-sans);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.16em;
  color: rgba(244, 239, 228, 0.6);
  margin-bottom: 14px;
}

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

.footer-col a {
  display: inline-block;
  padding: 3px 0;
  font-size: 14px;
  color: rgba(244, 239, 228, 0.82);
}

.footer-col a:hover,
.footer-col a:focus-visible {
  color: #F0C9A8;
}

.footer-bottom {
  border-top: 1px solid rgba(244, 239, 228, 0.16);
}

.footer-bottom p {
  max-width: var(--shell);
  margin: 0 auto;
  padding: 6px 24px;
  font-size: 13px;
  line-height: 1.8;
  color: rgba(244, 239, 228, 0.56);
}

.footer-bottom p:first-child {
  padding-top: 18px;
}

.footer-bottom p:last-child {
  padding-bottom: 20px;
}

/* --------------------------------------------------------------------------
   components · 通用
   -------------------------------------------------------------------------- */
.section-tag,
.section-label {
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--moss);
  margin-bottom: 8px;
}

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

.section-head h2 {
  font-size: 22px;
}

.section-intro {
  margin-top: 10px;
  max-width: var(--reading);
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink);
}

.btn,
.btn-primary,
.btn-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 10px 22px;
  font-size: 15px;
  font-family: var(--font-sans);
  border-radius: 4px;
  border: 1px solid transparent;
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.btn-primary {
  background: var(--clay);
  color: #FFF8F0;
  border-color: var(--clay);
}

.btn-primary:hover,
.btn-primary:focus-visible {
  background: #B85F2C;
  border-color: #B85F2C;
  color: #FFF8F0;
}

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

.btn-ghost:hover,
.btn-ghost:focus-visible {
  background: var(--pine);
  color: var(--linen);
}

.link-more {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 22px;
  font-size: 15px;
  color: var(--moss);
  border-bottom: 1px solid var(--moss);
  padding-bottom: 2px;
}

.link-more::after {
  content: "→";
  font-family: var(--font-serif);
}

.link-more:hover,
.link-more:focus-visible {
  color: var(--clay);
  border-bottom-color: var(--clay);
}

/* 相关页面入口（内页通用） */
.related-links,
.related-nav,
.related-pages {
  margin-top: 48px;
  padding-top: 26px;
  border-top: var(--line);
}

.related-links h2,
.related-nav h2,
.related-pages h2,
.related-title {
  font-size: 20px;
  margin-bottom: 16px;
}

.related-list,
.related-nav ul,
.related-pages ul {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 24px;
}

.related-list li a,
.related-nav ul a,
.related-pages ul a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  font-size: 15px;
  color: var(--moss);
  border-bottom: 1px solid var(--straw);
}

.related-list li a:hover,
.related-nav ul a:hover,
.related-pages ul a:hover,
.related-list li a:focus-visible,
.related-nav ul a:focus-visible,
.related-pages ul a:focus-visible {
  color: var(--clay);
  border-bottom-color: var(--clay);
}

/* 表格 */
.table-wrap {
  width: 100%;
  overflow-x: auto;
  margin-top: 20px;
  border: var(--line);
  border-radius: 6px;
  background: var(--paper);
}

.field-table,
.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
  line-height: 1.7;
}

.field-table th,
.field-table td,
.data-table th,
.data-table td {
  padding: 12px 16px;
  text-align: left;
  vertical-align: top;
  border-bottom: var(--line);
}

.field-table thead th,
.data-table thead th {
  background: var(--linen);
  color: var(--pine);
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.06em;
  white-space: nowrap;
}

.field-table tbody tr:last-child th,
.field-table tbody tr:last-child td,
.data-table tbody tr:last-child th,
.data-table tbody tr:last-child td {
  border-bottom: none;
}

.field-table tbody th,
.data-table tbody th {
  color: var(--pine);
  font-weight: 600;
  white-space: nowrap;
}

/* 图片容器 */
.lead-figure,
.media-figure,
.feedback-figure,
.timeline-intro-figure,
.side-figure,
.channel-media {
  border-radius: 6px;
  overflow: hidden;
}

.lead-figure img,
.media-figure img,
.feedback-figure img,
.timeline-intro-figure img,
.side-figure img,
.channel-media img {
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* --------------------------------------------------------------------------
   pages · 首页
   -------------------------------------------------------------------------- */
.hero-editorial {
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(0, 1fr);
  gap: 40px;
  padding: 44px 0 56px;
  border-bottom: var(--line);
}

.lead-story {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.lead-media {
  border-radius: 8px;
  overflow: hidden;
  background: var(--straw);
}

.lead-media img {
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.lead-body {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.lead-body h1 {
  font-size: clamp(30px, 4vw, 44px);
  font-weight: 600;
}

.lead-summary {
  max-width: var(--reading);
  font-size: 16px;
  line-height: 1.8;
  color: var(--ink);
}

.lead-direction {
  max-width: var(--reading);
  font-size: 14px;
  line-height: 1.8;
  color: var(--moss);
  padding-left: 12px;
  border-left: 2px solid var(--clay);
}

.lead-body .btn-primary {
  align-self: flex-start;
  margin-top: 6px;
}

.side-stories {
  display: flex;
  flex-direction: column;
  gap: 0;
  border-top: var(--line);
}

.side-story {
  padding: 18px 0 18px 16px;
  border-bottom: var(--line);
  border-left: 2px solid transparent;
  transition: border-color 0.2s ease;
}

.side-story:hover {
  border-left-color: var(--clay);
}

.story-index {
  font-family: var(--font-serif);
  font-size: 13px;
  letter-spacing: 0.12em;
  color: var(--clay);
  margin-bottom: 6px;
}

.story-title {
  font-size: 18px;
  line-height: 1.5;
}

.story-title a {
  color: var(--pine);
}

.story-title a:hover,
.story-title a:focus-visible {
  color: var(--clay);
}

.story-desc {
  margin-top: 8px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink);
}

.story-tag {
  display: inline-block;
  margin-top: 10px;
  padding: 2px 10px;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--moss);
  border: 1px solid var(--straw);
  border-radius: 3px;
}

/* 频道入口 */
.channel-entry {
  padding: 52px 0;
  border-bottom: var(--line);
}

.channel-media {
  max-width: 560px;
  margin-bottom: 28px;
}

.channel-media img {
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.channel-list {
  border-top: var(--line);
}

.channel-row {
  border-bottom: var(--line);
}

.channel-link {
  display: grid;
  grid-template-columns: 160px minmax(0, 1fr) 130px;
  align-items: baseline;
  gap: 20px;
  padding: 16px 12px 16px 14px;
  border-left: 2px solid transparent;
  transition: border-color 0.2s ease, background 0.2s ease;
}

.channel-link:hover,
.channel-link:focus-visible {
  border-left-color: var(--clay);
  background: var(--paper);
}

.channel-name {
  font-family: var(--font-serif);
  font-size: 17px;
  font-weight: 600;
  color: var(--pine);
}

.channel-duty {
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink);
}

.channel-status {
  font-size: 12px;
  letter-spacing: 0.08em;
  text-align: right;
  color: var(--ink);
  white-space: nowrap;
}

.channel-status.is-new {
  color: var(--clay);
}

/* 编排时间轴 */
.timeline-preview {
  padding: 52px 0;
  border-bottom: var(--line);
}

.stage-list {
  display: flex;
  flex-direction: column;
  gap: 0;
  border-top: var(--line);
}

.stage-node {
  display: grid;
  grid-template-columns: 180px minmax(0, 1fr);
  gap: 32px;
  padding: 22px 0;
  border-bottom: var(--line);
}

.stage-mark {
  font-family: var(--font-serif);
  font-size: 44px;
  line-height: 1.1;
  color: var(--clay);
}

.stage-body h3 {
  font-size: 18px;
  margin-bottom: 8px;
}

.stage-body p {
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink);
}

.stage-impact {
  margin-top: 8px;
  padding-left: 12px;
  border-left: 2px solid var(--straw);
  font-size: 14px;
  color: var(--moss);
}

/* 最新片单 */
.collection-preview {
  padding: 52px 0;
  border-bottom: var(--line);
}

.collection-list {
  border-top: var(--line);
}

.collection-row {
  border-bottom: var(--line);
}

.collection-link {
  display: grid;
  grid-template-columns: 90px minmax(0, 1fr) minmax(0, 1.2fr) 110px;
  align-items: baseline;
  gap: 18px;
  padding: 15px 12px 15px 14px;
  border-left: 2px solid transparent;
  transition: border-color 0.2s ease, background 0.2s ease;
}

.collection-link:hover,
.collection-link:focus-visible {
  border-left-color: var(--clay);
  background: var(--paper);
}

.collection-no {
  font-family: var(--font-serif);
  font-size: 15px;
  letter-spacing: 0.1em;
  color: var(--moss);
}

.collection-theme {
  font-size: 16px;
  font-weight: 600;
  color: var(--pine);
}

.collection-direction {
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink);
}

.collection-state {
  font-size: 12px;
  letter-spacing: 0.08em;
  text-align: right;
  color: var(--ink);
  white-space: nowrap;
}

.collection-state.is-live {
  color: var(--moss);
}

/* 观看说明要点 */
.viewing-points {
  padding: 52px 0;
  border-bottom: var(--line);
}

.point-list {
  display: flex;
  flex-direction: column;
  gap: 0;
  border-top: var(--line);
}

.point-row {
  padding: 18px 0;
  border-bottom: var(--line);
}

.point-question {
  font-size: 17px;
  margin-bottom: 6px;
}

.point-answer {
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink);
  max-width: var(--reading);
}

/* 反馈入口 */
.feedback-entry {
  padding: 52px 0 0;
}

.feedback-list {
  border-top: var(--line);
}

.feedback-row {
  border-bottom: var(--line);
}

.feedback-link {
  display: grid;
  grid-template-columns: 200px minmax(0, 1fr);
  align-items: baseline;
  gap: 20px;
  padding: 15px 12px 15px 14px;
  border-left: 2px solid transparent;
  transition: border-color 0.2s ease, background 0.2s ease;
}

.feedback-link:hover,
.feedback-link:focus-visible {
  border-left-color: var(--clay);
  background: var(--paper);
}

.feedback-type {
  font-size: 16px;
  font-weight: 600;
  color: var(--pine);
}

.feedback-scope {
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink);
}

/* --------------------------------------------------------------------------
   pages · 内容定位
   -------------------------------------------------------------------------- */
.page-content-profile .page-title-block {
  padding: 24px 0 8px;
}

.page-title-block .page-lead {
  max-width: var(--reading);
  margin-top: 10px;
  font-size: 16px;
  line-height: 1.85;
  color: var(--ink);
}

.page-content-profile .lead-figure {
  margin: 26px 0 8px;
}

.page-content-profile .lead-figure img {
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.reading-shell {
  max-width: var(--reading);
  padding-top: 12px;
}

.reading-shell section {
  padding: 32px 0;
  border-bottom: var(--line);
}

.reading-shell h2 {
  font-size: 22px;
  margin-bottom: 12px;
}

.reading-shell > section > p {
  font-size: 16px;
  line-height: 1.85;
  color: var(--ink);
  margin-bottom: 10px;
}

/* 收录与排除对照 */
.compare-columns {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
  margin-top: 20px;
}

.compare-col {
  padding: 20px 22px;
  border: var(--line);
  border-radius: 6px;
  background: var(--paper);
}

.compare-col h3 {
  font-size: 17px;
  margin-bottom: 12px;
}

.compare-col ul {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.compare-col li {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink);
}

.compare-col li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--moss);
}

.compare-exclude li::before {
  background: var(--clay);
}

/* 选题维度 */
.dimension-list {
  display: flex;
  flex-direction: column;
  gap: 0;
  margin-top: 18px;
  border-top: var(--line);
  counter-reset: dimension;
}

.dimension-item {
  padding: 16px 0 16px 44px;
  border-bottom: var(--line);
  position: relative;
  counter-increment: dimension;
}

.dimension-item::before {
  content: counter(dimension, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 16px;
  font-family: var(--font-serif);
  font-size: 20px;
  line-height: 1.4;
  color: var(--clay);
}

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

.dimension-item p {
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink);
}

/* 撰写方式示例 */
.example-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-top: 20px;
}

.example-item {
  padding: 18px 20px;
  border-left: 3px solid var(--clay);
  background: var(--paper);
  border-radius: 0 6px 6px 0;
}

.example-item h3 {
  font-size: 16px;
  margin-bottom: 8px;
}

.example-text {
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink);
}

/* --------------------------------------------------------------------------
   pages · 频道设置
   -------------------------------------------------------------------------- */
.page-head {
  padding: 24px 0 8px;
}

.page-head-inner {
  max-width: var(--reading);
}

.page-channels .page-head .page-lead,
.page-viewing .page-head .page-lead {
  max-width: var(--reading);
  margin-top: 8px;
  font-size: 16px;
  line-height: 1.85;
  color: var(--ink);
}

.page-layout {
  display: grid;
  grid-template-columns: minmax(0, 740px) minmax(0, 300px);
  gap: 48px;
  align-items: start;
  padding-top: 8px;
}

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

.page-layout .breadcrumb {
  padding-top: 0;
}

.content-block {
  padding: 30px 0;
  border-bottom: var(--line);
}

.content-block h2 {
  font-size: 22px;
  margin-bottom: 12px;
}

.content-block p {
  font-size: 16px;
  line-height: 1.85;
  color: var(--ink);
  margin-bottom: 10px;
}

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

.criteria-list li {
  padding-left: 14px;
  border-left: 2px solid var(--straw);
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink);
}

.criteria-list strong {
  display: block;
  color: var(--pine);
}

.channel-list .channel-name {
  display: block;
}

.channel-topic {
  display: block;
  margin-top: 4px;
  font-size: 13px;
  color: var(--moss);
}

/* 侧栏 */
.side-panel {
  padding: 24px 22px;
  background: var(--paper);
  border: var(--line);
  border-radius: 6px;
}

.side-title {
  font-size: 18px;
  margin-bottom: 16px;
}

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

.side-figure img {
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.rhythm-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  counter-reset: rhythm;
}

.rhythm-list li {
  position: relative;
  padding-left: 26px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink);
  counter-increment: rhythm;
}

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

.rhythm-list strong {
  display: block;
  color: var(--pine);
}

/* --------------------------------------------------------------------------
   pages · 公开片单
   -------------------------------------------------------------------------- */
.page-shell {
  padding-top: 8px;
}

.page-collections .page-title-block {
  padding: 24px 0 8px;
}

.section-block {
  padding: 30px 0;
  border-bottom: var(--line);
}

.section-block h2 {
  font-size: 22px;
  margin-bottom: 14px;
}

.section-block h3 {
  font-size: 17px;
  margin: 22px 0 10px;
}

.section-block p {
  max-width: var(--reading);
  font-size: 16px;
  line-height: 1.85;
  color: var(--ink);
  margin-bottom: 10px;
}

.section-block .media-figure {
  max-width: 640px;
  margin: 6px 0 20px;
}

.section-block .media-figure img {
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.rule-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-width: var(--reading);
}

.rule-list li {
  padding-left: 14px;
  border-left: 2px solid var(--straw);
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink);
}

.rule-list strong {
  color: var(--pine);
}

/* 片单索引 */
.collection-index {
  margin-top: 6px;
  border-top: var(--line);
}

.collection-row {
  border-bottom: var(--line);
}

.collection-index .collection-row {
  display: grid;
  grid-template-columns: 90px minmax(0, 1fr) minmax(0, 1.3fr) 110px;
  align-items: baseline;
  gap: 18px;
  padding: 15px 12px 15px 14px;
  border-left: 2px solid transparent;
  transition: border-color 0.2s ease, background 0.2s ease;
}

.collection-index .collection-row:hover {
  border-left-color: var(--clay);
  background: var(--paper);
}

.collection-code {
  font-family: var(--font-serif);
  font-size: 15px;
  letter-spacing: 0.1em;
  color: var(--moss);
}

.collection-topic {
  font-size: 16px;
  font-weight: 600;
  color: var(--pine);
}

.collection-index .collection-direction {
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink);
}

.collection-status {
  font-size: 12px;
  letter-spacing: 0.08em;
  text-align: right;
  white-space: nowrap;
  color: var(--ink);
}

.collection-status.is-open {
  color: var(--moss);
}

.collection-status.is-pending {
  color: var(--clay);
}

.collection-status.is-building {
  color: var(--ink);
}

/* --------------------------------------------------------------------------
   pages · 更新记录
   -------------------------------------------------------------------------- */
.page-timeline .page-title {
  margin-bottom: 0;
}

.timeline-intro {
  padding: 30px 0;
  border-bottom: var(--line);
}

.timeline-intro h2 {
  font-size: 22px;
  margin-bottom: 16px;
}

.timeline-intro-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 380px);
  gap: 36px;
  align-items: start;
}

.timeline-intro-text p {
  font-size: 16px;
  line-height: 1.85;
  color: var(--ink);
}

.timeline-read-hints {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 16px;
}

.timeline-read-hints li {
  padding-left: 14px;
  border-left: 2px solid var(--straw);
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink);
}

.timeline-read-hints strong {
  color: var(--pine);
}

.timeline-intro-figure img {
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

/* 阶段节点 */
.timeline-nodes {
  padding: 34px 0 10px;
}

.timeline-nodes > h2 {
  font-size: 22px;
  margin-bottom: 18px;
}

.timeline-node {
  display: grid;
  grid-template-columns: 180px minmax(0, 640px);
  gap: 32px;
  padding: 24px 0;
  border-top: var(--line);
}

.timeline-node-marker {
  padding-top: 4px;
}

.stage-number {
  font-family: var(--font-serif);
  font-size: 44px;
  line-height: 1.1;
  color: var(--clay);
}

.stage-batch {
  margin-top: 6px;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--moss);
}

.timeline-node-title {
  font-size: 18px;
  margin-bottom: 8px;
}

.timeline-node-summary {
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink);
}

.timeline-node-impact {
  margin-top: 8px;
  padding-left: 12px;
  border-left: 2px solid var(--straw);
  font-size: 14px;
  line-height: 1.75;
  color: var(--moss);
}

.timeline-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}

.timeline-tags li {
  padding: 2px 10px;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--moss);
  border: 1px solid var(--straw);
  border-radius: 3px;
}

/* 影响范围 */
.timeline-scope {
  padding: 34px 0;
  border-top: var(--line);
}

.timeline-scope h2 {
  font-size: 22px;
  margin-bottom: 10px;
}

.section-lead {
  max-width: var(--reading);
  font-size: 16px;
  line-height: 1.85;
  color: var(--ink);
  margin-bottom: 20px;
}

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

.scope-item {
  padding: 18px 20px;
  background: var(--paper);
  border: var(--line);
  border-radius: 6px;
}

.scope-item h3 {
  font-size: 16px;
  margin-bottom: 8px;
}

.scope-item p {
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink);
}

/* --------------------------------------------------------------------------
   pages · 观看说明
   -------------------------------------------------------------------------- */
.content-shell {
  max-width: var(--shell);
  padding-top: 8px;
}

.content-shell section {
  padding: 32px 0;
  border-bottom: var(--line);
}

.content-shell .section-head {
  margin-bottom: 20px;
}

.content-shell .media-figure {
  max-width: 640px;
  margin-bottom: 22px;
}

.content-shell .media-figure img {
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

/* 环境检查步骤 */
.check-steps {
  display: flex;
  flex-direction: column;
  gap: 0;
  border-top: var(--line);
  counter-reset: check;
}

.check-step {
  position: relative;
  padding: 18px 0 18px 48px;
  border-bottom: var(--line);
  counter-increment: check;
}

.check-step::before {
  content: counter(check, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 18px;
  font-family: var(--font-serif);
  font-size: 22px;
  line-height: 1.3;
  color: var(--clay);
}

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

.check-step p {
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink);
}

.check-step .check-result {
  margin-top: 6px;
  font-size: 14px;
  color: var(--moss);
}

/* 排查顺序 */
.troubleshoot-steps {
  display: flex;
  flex-direction: column;
  gap: 0;
  border-top: var(--line);
  counter-reset: troubleshoot;
}

.troubleshoot-step {
  position: relative;
  padding: 16px 0 16px 48px;
  border-bottom: var(--line);
  counter-increment: troubleshoot;
}

.troubleshoot-step::before {
  content: counter(troubleshoot, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 16px;
  font-family: var(--font-serif);
  font-size: 20px;
  line-height: 1.4;
  color: var(--moss);
}

.troubleshoot-step h3 {
  font-size: 16px;
  margin-bottom: 6px;
}

.troubleshoot-step p {
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink);
}

/* 不提供的内容 */
.scope-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
}

.viewing-scope .scope-item {
  padding: 18px 20px;
}

/* FAQ */
.faq-list {
  border-top: var(--line);
}

.faq-item {
  border-bottom: var(--line);
}

.faq-question {
  position: relative;
  padding: 16px 44px 16px 0;
  font-family: var(--font-serif);
  font-size: 17px;
  font-weight: 600;
  color: var(--pine);
  cursor: pointer;
  list-style: none;
  min-height: 44px;
}

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

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

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

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

.faq-answer {
  padding: 0 44px 18px 0;
}

.faq-answer p {
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink);
}

.faq-answer p + p {
  margin-top: 8px;
}

/* --------------------------------------------------------------------------
   pages · 问题反馈
   -------------------------------------------------------------------------- */
.page-feedback .page-title-block {
  padding: 24px 0 8px;
}

.feedback-types,
.feedback-prepare,
.feedback-process,
.feedback-scope {
  padding: 32px 0;
  border-bottom: var(--line);
}

.feedback-types > h2,
.feedback-prepare > h2,
.feedback-process > h2,
.feedback-scope > h2 {
  font-size: 22px;
  margin-bottom: 10px;
}

.feedback-types > .section-intro,
.feedback-prepare > .section-intro,
.feedback-process > .section-intro,
.feedback-scope > .section-intro {
  max-width: var(--reading);
  margin-bottom: 20px;
}

.feedback-figure {
  max-width: 640px;
  margin-bottom: 24px;
}

.feedback-figure img {
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

/* 四类问题块 */
.feedback-type {
  display: grid;
  grid-template-columns: minmax(0, 300px) minmax(0, 1fr);
  gap: 32px;
  padding: 22px 0;
  border-top: var(--line);
}

.feedback-type:last-of-type {
  border-bottom: var(--line);
}

.feedback-type-head h3 {
  font-size: 18px;
  margin-bottom: 6px;
}

.feedback-type-head p {
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink);
}

.feedback-type-path {
  min-width: 0;
}

.path-label {
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--moss);
  margin-bottom: 8px;
}

.feedback-type-path ol {
  display: flex;
  flex-direction: column;
  gap: 8px;
  counter-reset: path;
}

.feedback-type-path li {
  position: relative;
  padding-left: 26px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink);
  counter-increment: path;
}

.feedback-type-path li::before {
  content: counter(path) ".";
  position: absolute;
  left: 0;
  top: 0;
  font-family: var(--font-serif);
  font-size: 14px;
  color: var(--clay);
}

/* 准备信息 */
.prepare-list {
  display: flex;
  flex-direction: column;
  border-top: var(--line);
}

.prepare-list li {
  display: grid;
  grid-template-columns: 180px minmax(0, 1fr);
  gap: 20px;
  padding: 14px 0;
  border-bottom: var(--line);
}

.prepare-name {
  font-size: 15px;
  font-weight: 600;
  color: var(--pine);
}

.prepare-use {
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink);
}

/* 处理顺序 */
.process-steps {
  display: flex;
  flex-direction: column;
  border-top: var(--line);
}

.process-steps li {
  display: grid;
  grid-template-columns: 56px minmax(0, 1fr);
  gap: 20px;
  padding: 16px 0;
  border-bottom: var(--line);
}

.step-index {
  font-family: var(--font-serif);
  font-size: 22px;
  line-height: 1.3;
  color: var(--clay);
}

.step-body h3 {
  font-size: 16px;
  margin-bottom: 4px;
}

.step-body p {
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink);
}

/* 不受理范围 */
.feedback-scope .scope-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px 24px;
}

.feedback-scope .scope-list li {
  padding-left: 16px;
  border-left: 2px solid var(--straw);
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink);
}

.scope-note {
  margin-top: 20px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink);
}

/* --------------------------------------------------------------------------
   pages · 404
   -------------------------------------------------------------------------- */
.error-main {
  max-width: var(--shell);
  margin: 0 auto;
  padding: 0 24px 72px;
}

.error-panel {
  padding: 56px 0 40px;
  border-bottom: var(--line);
}

.error-panel h1 {
  font-size: clamp(30px, 4vw, 44px);
  margin-bottom: 14px;
}

.error-lead {
  max-width: var(--reading);
  font-size: 16px;
  line-height: 1.85;
  color: var(--ink);
}

.error-reasons {
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-width: var(--reading);
  margin-top: 20px;
}

.error-reasons li {
  padding-left: 14px;
  border-left: 2px solid var(--straw);
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink);
}

.error-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 26px;
}

.error-links {
  padding: 34px 0 0;
}

.error-links h2 {
  font-size: 20px;
  margin-bottom: 16px;
}

.error-links ul {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 24px;
}

.error-links a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  font-size: 15px;
  color: var(--moss);
  border-bottom: 1px solid var(--straw);
}

.error-links a:hover,
.error-links a:focus-visible {
  color: var(--clay);
  border-bottom-color: var(--clay);
}

/* --------------------------------------------------------------------------
   responsive
   -------------------------------------------------------------------------- */
@media (max-width: 1024px) {
  .hero-editorial {
    grid-template-columns: minmax(0, 1fr);
    gap: 32px;
    padding: 36px 0 44px;
  }

  .side-stories {
    border-top: var(--line);
  }

  .page-layout {
    grid-template-columns: minmax(0, 1fr);
    gap: 32px;
  }

  .side-panel {
    max-width: 640px;
  }

  .timeline-intro-body {
    grid-template-columns: minmax(0, 1fr);
    gap: 24px;
  }

  .timeline-intro-figure {
    max-width: 520px;
  }

  .timeline-node {
    grid-template-columns: 140px minmax(0, 1fr);
    gap: 24px;
  }

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

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

  .footer-brand {
    grid-column: 1 / -1;
  }
}

@media (max-width: 720px) {
  .header-inner {
    padding: 14px 18px;
    flex-wrap: wrap;
    gap: 12px;
  }

  .brand {
    font-size: 20px;
  }

  .nav-toggle {
    display: flex;
  }

  .primary-nav {
    flex: 1 1 100%;
    order: 3;
    justify-content: stretch;
  }

  .nav-list {
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    width: 100%;
    padding-top: 8px;
    border-top: 1px solid rgba(244, 239, 228, 0.16);
  }

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

  .nav-list li {
    width: 100%;
  }

  .nav-list a {
    display: flex;
    align-items: center;
    min-height: 48px;
    padding: 8px 2px;
    font-size: 16px;
    border-bottom: 1px solid rgba(244, 239, 228, 0.12);
  }

  .nav-list a.is-current,
  .nav-list a:hover,
  .nav-list a:focus-visible {
    border-bottom-color: var(--clay);
  }

  .batch-bar {
    padding: 10px 18px 12px;
    gap: 10px;
    align-items: flex-start;
  }

  .batch-label {
    padding-top: 2px;
    white-space: nowrap;
  }

  .batch-list {
    flex-wrap: nowrap;
    overflow-x: auto;
    gap: 0 20px;
    padding-bottom: 4px;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: thin;
  }

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

  .batch-list a {
    white-space: nowrap;
  }

  .home-main,
  .inner-main,
  .error-main {
    padding-left: 18px;
    padding-right: 18px;
    padding-bottom: 52px;
  }

  .breadcrumb {
    padding-top: 16px;
    font-size: 12px;
  }

  .page-header {
    padding: 18px 0 20px;
  }

  .page-title {
    font-size: clamp(22px, 6vw, 28px);
  }

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

  .lead-direction {
    font-size: 13px;
  }

  .channel-media {
    max-width: 100%;
  }

  .channel-link {
    grid-template-columns: minmax(0, 1fr);
    gap: 4px;
    padding: 14px 10px 14px 12px;
  }

  .channel-status {
    text-align: left;
  }

  .stage-node {
    grid-template-columns: minmax(0, 1fr);
    gap: 8px;
    padding: 18px 0;
  }

  .stage-mark {
    font-size: 34px;
  }

  .collection-link {
    grid-template-columns: 70px minmax(0, 1fr);
    gap: 4px 12px;
    padding: 14px 10px 14px 12px;
  }

  .collection-direction {
    grid-column: 2 / 3;
  }

  .collection-state {
    grid-column: 2 / 3;
    text-align: left;
  }

  .feedback-link {
    grid-template-columns: minmax(0, 1fr);
    gap: 4px;
    padding: 14px 10px 14px 12px;
  }

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

  .collection-index .collection-row {
    grid-template-columns: 76px minmax(0, 1fr);
    gap: 4px 12px;
    padding: 14px 10px 14px 12px;
  }

  .collection-index .collection-direction {
    grid-column: 2 / 3;
  }

  .collection-status {
    grid-column: 2 / 3;
    text-align: left;
  }

  .timeline-node {
    grid-template-columns: minmax(0, 1fr);
    gap: 10px;
    padding: 20px 0;
  }

  .stage-number {
    font-size: 34px;
  }

  .stage-batch {
    margin-top: 2px;
  }

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

  .feedback-type {
    grid-template-columns: minmax(0, 1fr);
    gap: 12px;
    padding: 18px 0;
  }

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

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

  .check-step,
  .troubleshoot-step {
    padding-left: 40px;
  }

  .check-step::before {
    font-size: 19px;
    top: 19px;
  }

  .troubleshoot-step::before {
    font-size: 17px;
    top: 18px;
  }

  .faq-question {
    padding-right: 36px;
    font-size: 16px;
  }

  .faq-answer {
    padding-right: 12px;
  }

  .footer-inner {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 28px 20px;
    padding: 0 18px 28px;
  }

  .site-footer {
    padding-top: 36px;
  }

  .footer-bottom p {
    padding-left: 18px;
    padding-right: 18px;
  }

  .related-list,
  .related-nav ul,
  .related-pages ul {
    flex-direction: column;
    gap: 0;
  }

  .related-list li a,
  .related-nav ul a,
  .related-pages ul a {
    display: flex;
    min-height: 44px;
    border-bottom: 1px solid var(--straw);
  }

  .field-table th,
  .field-table td,
  .data-table th,
  .data-table td {
    padding: 10px 12px;
  }
}

@media (max-width: 420px) {
  .footer-inner {
    grid-template-columns: minmax(0, 1fr);
  }

  .footer-brand {
    grid-column: auto;
  }

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

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

/* 程序验收反馈：修复网格孤项 */
@media (min-width: 769px) {
  .scope-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}