/* ==========================================================================
   呱呱漫画 ribdf.com — 全站样式表
   分组：base / layout / components / pages / responsive
   ========================================================================== */

/* --------------------------------------------------------------------------
   base — 变量、重置、排版
   -------------------------------------------------------------------------- */
:root {
  --c-primary: #1f8f6f;
  --c-primary-dark: #166b53;
  --c-primary-soft: #d9f0e7;
  --c-accent: #f2a13b;
  --c-accent-soft: #fdf0dc;
  --c-bg: #f7f9f6;
  --c-surface: #ffffff;
  --c-text: #1f2b2e;
  --c-muted: #5d6f6a;
  --c-line: #e2e8e4;
  --shell: 1180px;
  --main-col: 760px;
  --side-col: 320px;
  --gap: 32px;
  --radius: 8px;
  --radius-sm: 6px;
  --shadow: 0 1px 2px rgba(31, 43, 46, 0.06), 0 6px 18px rgba(31, 43, 46, 0.05);
  --shadow-hover: 0 2px 4px rgba(31, 43, 46, 0.08), 0 10px 24px rgba(31, 43, 46, 0.09);
}

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

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

body {
  margin: 0;
  background: var(--c-bg);
  color: var(--c-text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC",
    sans-serif;
  font-size: 16px;
  line-height: 1.75;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, h4 {
  margin: 0;
  color: var(--c-text);
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: normal;
}

h1 { font-size: 34px; }
h2 { font-size: 24px; }
h3 { font-size: 18px; }

p {
  margin: 0 0 14px;
}

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

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

a {
  color: var(--c-primary);
  text-decoration: none;
  text-underline-offset: 3px;
  transition: color 0.18s ease, border-color 0.18s ease, background-color 0.18s ease;
}

a:hover {
  color: var(--c-primary-dark);
  text-decoration: underline;
}

img {
  display: block;
  max-width: 100%;
  height: auto;
  border: 0;
}

figure {
  margin: 0;
}

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

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

/* 跳转链接：默认移出视口，聚焦时才出现，避免撑破布局 */
.skip-link {
  position: absolute;
  left: 12px;
  top: 12px;
  z-index: 120;
  padding: 10px 16px;
  border-radius: var(--radius-sm);
  background: var(--c-primary);
  color: #fff;
  font-size: 14px;
  transform: translateY(-200%);
  transition: transform 0.2s ease;
}

.skip-link:focus,
.skip-link:focus-visible {
  transform: translateY(0);
  color: #fff;
  text-decoration: none;
}

/* --------------------------------------------------------------------------
   layout — 容器、页头、主导航、主体、页脚
   -------------------------------------------------------------------------- */
.shell {
  width: 100%;
  max-width: var(--shell);
  margin: 0 auto;
  padding: 0 24px;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  background: var(--c-surface);
  border-bottom: 1px solid var(--c-line);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 72px;
  padding-top: 12px;
  padding-bottom: 12px;
}

.brand {
  display: flex;
  flex-direction: column;
  gap: 2px;
  flex: 0 0 auto;
  color: var(--c-text);
  text-decoration: none;
}

.brand:hover {
  text-decoration: none;
  color: var(--c-text);
}

.brand-name {
  font-size: 21px;
  font-weight: 700;
  line-height: 1.2;
  color: var(--c-primary);
}

.brand-slogan {
  font-size: 12px;
  line-height: 1.4;
  color: var(--c-muted);
}

.site-nav {
  flex: 1 1 auto;
}

.nav-list {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  flex-wrap: wrap;
  gap: 4px 8px;
}

.nav-item > a {
  display: inline-block;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  color: var(--c-text);
  font-size: 15px;
  line-height: 1.4;
  text-decoration: none;
}

.nav-item > a:hover {
  background: var(--c-primary-soft);
  color: var(--c-primary-dark);
  text-decoration: none;
}

.nav-item.is-current > a,
.nav-item > a.is-current {
  color: var(--c-primary);
  font-weight: 700;
  box-shadow: inset 0 -2px 0 var(--c-primary);
}

.nav-toggle {
  display: none;
  flex: 0 0 auto;
  width: 46px;
  height: 46px;
  padding: 0;
  border: 1px solid var(--c-line);
  border-radius: var(--radius-sm);
  background: var(--c-surface);
  cursor: pointer;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
}

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

.mobile-nav {
  border-top: 1px solid var(--c-line);
  background: var(--c-surface);
}

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

.mobile-nav-list {
  max-width: var(--shell);
  margin: 0 auto;
  padding: 8px 24px 16px;
}

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

.mobile-nav-list a {
  display: flex;
  align-items: center;
  min-height: 48px;
  color: var(--c-text);
  font-size: 16px;
  text-decoration: none;
}

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

.site-main {
  flex: 1 0 auto;
  display: block;
}

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

/* 内页骨架：面包屑、页面标题区 */
.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  width: 100%;
  max-width: var(--shell);
  margin: 0 auto;
  padding: 20px 24px 0;
  font-size: 14px;
  line-height: 1.6;
  color: var(--c-muted);
}

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

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

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

.page-header {
  width: 100%;
  max-width: var(--shell);
  margin: 0 auto;
  padding: 16px 24px 0;
}

.page-title {
  font-size: 34px;
  font-weight: 700;
  color: var(--c-text);
  line-height: 1.3;
  max-width: var(--main-col);
}

/* 页面标题区：导语 + 状态标签 + 视觉图 */
.page-hero {
  margin-top: 20px;
}

.page-hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 420px);
  align-items: center;
  gap: var(--gap);
}

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

.page-hero-lead {
  margin: 0 0 14px;
  max-width: 46em;
  color: var(--c-muted);
  font-size: 16px;
  line-height: 1.75;
}

.page-hero-text .status-tag,
.page-hero-tag .status-tag {
  display: inline-block;
}

.page-hero-tag {
  margin: 0;
}

.page-hero-media,
.page-hero-figure {
  min-width: 0;
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--c-primary-soft);
}

.page-hero-media img,
.page-hero-figure img {
  width: 100%;
  height: 240px;
  object-fit: cover;
  border-radius: var(--radius);
}

.page-hero-media figcaption,
.page-hero-figure figcaption {
  padding: 10px 4px 0;
  color: var(--c-muted);
  font-size: 14px;
  line-height: 1.6;
}

/* 内页两栏 / 单栏 */
.page-layout {
  display: grid;
  grid-template-columns: minmax(0, var(--main-col)) minmax(0, var(--side-col));
  align-items: start;
  gap: var(--gap);
  margin-top: 40px;
}

.page-layout--single {
  grid-template-columns: minmax(0, var(--main-col));
  justify-content: center;
}

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

.page-aside,
.layout-sidebar {
  min-width: 0;
}

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

.content-wrap {
  max-width: var(--main-col);
  margin: 40px auto 0;
}

/* 页脚 */
.site-footer {
  margin-top: 64px;
  background: var(--c-surface);
  border-top: 1px solid var(--c-line);
}

.footer-inner {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: var(--gap);
  padding-top: 44px;
  padding-bottom: 32px;
}

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

.footer-brand {
  margin: 0 0 8px;
  color: var(--c-primary);
  font-size: 18px;
  font-weight: 700;
}

.footer-desc {
  margin: 0;
  color: var(--c-muted);
  font-size: 14px;
  line-height: 1.75;
}

.footer-title {
  margin: 0 0 12px;
  color: var(--c-text);
  font-size: 15px;
  font-weight: 700;
}

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

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

.footer-list a:hover {
  color: var(--c-primary);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px 20px;
  padding-top: 18px;
  padding-bottom: 24px;
  border-top: 1px solid var(--c-line);
}

.footer-bottom p {
  margin: 0;
  color: var(--c-muted);
  font-size: 13px;
  line-height: 1.7;
}

.footer-copy {
  color: var(--c-muted);
}

/* --------------------------------------------------------------------------
   components — 标签、按钮、卡片、列表、表格、FAQ
   -------------------------------------------------------------------------- */
/* 状态标签 */
.status-tag {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 13px;
  line-height: 1.6;
  white-space: nowrap;
}

.status-tag--green,
.status-tag--done,
.status-tag--ready {
  background: var(--c-primary-soft);
  color: var(--c-primary-dark);
}

.status-tag--orange,
.status-tag--update {
  background: var(--c-accent-soft);
  color: #a45f11;
}

/* 按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 11px 22px;
  border-radius: var(--radius);
  border: 1px solid transparent;
  font-size: 16px;
  font-weight: 600;
  text-decoration: none;
  transition: background-color 0.18s ease, color 0.18s ease,
    border-color 0.18s ease, transform 0.18s ease;
}

.btn--primary {
  background: var(--c-primary);
  color: #fff;
}

.btn--primary:hover {
  background: var(--c-primary-dark);
  color: #fff;
  text-decoration: none;
}

.btn--ghost {
  background: var(--c-surface);
  border-color: var(--c-line);
  color: var(--c-text);
}

.btn--ghost:hover {
  border-color: var(--c-primary);
  color: var(--c-primary-dark);
  text-decoration: none;
}

/* 站内入口链接 */
.entry-link {
  display: inline-block;
  color: var(--c-primary);
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
}

.entry-link::after {
  content: " →";
  font-weight: 400;
}

.entry-link:hover {
  color: var(--c-primary-dark);
  text-decoration: underline;
}

/* 模块标题组 */
.section-title {
  margin: 0 0 10px;
  font-size: 24px;
}

.section-lead {
  margin: 0 0 24px;
  max-width: 52em;
  color: var(--c-muted);
  font-size: 15px;
  line-height: 1.75;
}

.section-head {
  margin-bottom: 24px;
}

.section-head h2 {
  margin: 0 0 10px;
  font-size: 24px;
}

/* 题材标签墙 */
.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.tag {
  display: inline-block;
  padding: 8px 16px;
  border-radius: 999px;
  background: var(--c-primary-soft);
  color: var(--c-primary-dark);
  font-size: 14px;
  line-height: 1.6;
  text-decoration: none;
}

.tag:hover {
  background: var(--c-primary);
  color: #fff;
  text-decoration: none;
}

/* 标签预览 */
.tag-preview {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 12px 0 16px;
}

.tag-preview li {
  padding: 4px 12px;
  border-radius: 999px;
  background: var(--c-primary-soft);
  color: var(--c-primary-dark);
  font-size: 13px;
  line-height: 1.6;
}

/* 封面卡 */
.cover-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}

.cover-card {
  display: flex;
  flex-direction: column;
  min-width: 0;
  padding: 16px;
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  background: var(--c-surface);
  box-shadow: var(--shadow);
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.cover-card:hover {
  transform: translateY(-2px);
  border-color: var(--c-primary);
  box-shadow: var(--shadow-hover);
}

.cover-media {
  margin: 0 0 14px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--c-primary-soft);
}

.cover-media img {
  width: 100%;
  height: 190px;
  object-fit: cover;
  border-radius: var(--radius-sm);
}

.cover-name {
  margin: 0 0 8px;
  font-size: 18px;
}

.cover-card .status-tag {
  align-self: flex-start;
  margin-bottom: 10px;
}

.cover-desc {
  margin: 0 0 14px;
  color: var(--c-muted);
  font-size: 14px;
  line-height: 1.75;
}

.cover-card .entry-link {
  margin-top: auto;
}

/* 更新条目 */
.update-list {
  display: block;
}

.update-row {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 8px 16px;
  padding: 16px 18px;
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  background: var(--c-surface);
}

.update-row + .update-row {
  margin-top: 12px;
}

.update-name,
.update-row-name {
  font-size: 16px;
  font-weight: 700;
  color: var(--c-text);
}

.update-note,
.update-row-note {
  grid-column: 2 / 3;
  margin: 0;
  color: var(--c-muted);
  font-size: 14px;
  line-height: 1.7;
}

.update-row .entry-link {
  grid-column: 3 / 4;
  grid-row: 1 / 2;
  justify-self: end;
  white-space: nowrap;
}

/* 更新速览（首页三列入口里的紧凑列表） */
.update-mini {
  margin: 12px 0 16px;
}

.update-mini li {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 0;
  border-bottom: 1px solid var(--c-line);
  font-size: 14px;
  color: var(--c-text);
}

.update-mini li:last-child {
  border-bottom: 0;
}

/* 榜单条目 */
.rank-list {
  display: block;
}

.rank-row,
.rank-item {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr) auto;
  align-items: center;
  gap: 8px 16px;
  padding: 16px 18px;
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  background: var(--c-surface);
}

.rank-row + .rank-row,
.rank-item + .rank-item {
  margin-top: 12px;
}

.rank-no {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--c-primary-soft);
  color: var(--c-primary-dark);
  font-size: 14px;
  font-weight: 700;
  line-height: 1;
}

.rank-name,
.rank-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--c-text);
}

.rank-note {
  grid-column: 2 / 3;
  margin: 0;
  color: var(--c-muted);
  font-size: 14px;
  line-height: 1.7;
}

.rank-row .entry-link,
.rank-item .entry-link {
  grid-column: 3 / 4;
  grid-row: 1 / 2;
  justify-self: end;
  white-space: nowrap;
}

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

/* 步骤条（首页阅读路径） */
.step-list {
  display: grid;
  gap: 20px;
}

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

.step-item {
  min-width: 0;
  padding: 20px;
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  background: var(--c-surface);
}

.step-no {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  margin-bottom: 10px;
  border-radius: 50%;
  background: var(--c-primary);
  color: #fff;
  font-size: 14px;
  font-weight: 700;
  line-height: 1;
}

.step-item h3 {
  margin: 0 0 8px;
}

.step-item p {
  margin: 0 0 12px;
  color: var(--c-muted);
  font-size: 14px;
  line-height: 1.75;
}

/* 入口卡 / 相关卡 */
.feedback-grid,
.related-grid,
.related-cards,
.entry-cards {
  display: grid;
  gap: 20px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

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

.feedback-card,
.related-card,
.entry-card {
  display: flex;
  flex-direction: column;
  min-width: 0;
  padding: 20px;
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  background: var(--c-surface);
  box-shadow: var(--shadow);
  color: var(--c-text);
  text-decoration: none;
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.feedback-card:hover,
.related-card:hover,
.entry-card:hover {
  transform: translateY(-2px);
  border-color: var(--c-primary);
  box-shadow: var(--shadow-hover);
  text-decoration: none;
  color: var(--c-text);
}

.feedback-card h3,
.related-card h3,
.related-card-title,
.entry-card h3 {
  margin: 0 0 8px;
  font-size: 18px;
}

.feedback-card p,
.related-card p,
.entry-card p {
  margin: 0;
  color: var(--c-muted);
  font-size: 14px;
  line-height: 1.75;
}

.feedback-card .entry-link,
.entry-card .entry-link {
  margin-top: 14px;
}

/* 内页正文块 */
.content-block,
.content-section {
  margin-bottom: 40px;
}

.content-block h2,
.content-section h2 {
  margin: 0 0 12px;
  font-size: 24px;
}

.content-block p,
.content-section p {
  color: var(--c-text);
  font-size: 16px;
  line-height: 1.75;
}

.block-intro {
  margin: 0 0 18px;
  color: var(--c-muted);
  font-size: 15px;
  line-height: 1.75;
}

.note-text,
.block-note,
.table-note,
.legend-note {
  margin: 16px 0 0;
  padding: 14px 16px;
  border-left: 3px solid var(--c-primary);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  background: var(--c-primary-soft);
  color: var(--c-muted);
  font-size: 14px;
  line-height: 1.75;
}

/* 数据表 */
.table-scroll {
  overflow-x: auto;
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  background: var(--c-surface);
}

.data-table {
  min-width: 560px;
  font-size: 14px;
}

.data-table caption {
  padding: 14px 16px;
  color: var(--c-muted);
  font-size: 14px;
  line-height: 1.7;
  text-align: left;
}

.data-table th,
.data-table td {
  padding: 12px 16px;
  border-top: 1px solid var(--c-line);
  text-align: left;
  vertical-align: top;
  line-height: 1.7;
}

.data-table thead th {
  background: var(--c-primary-soft);
  color: var(--c-text);
  font-weight: 700;
  white-space: nowrap;
}

.data-table tbody tr:hover {
  background: #f3f8f5;
}

/* 侧栏 */
.aside-block,
.sidebar-block {
  padding: 20px;
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  background: var(--c-surface);
}

.aside-block + .aside-block,
.sidebar-block + .sidebar-block {
  margin-top: 20px;
}

.aside-title,
.sidebar-block h2 {
  margin: 0 0 10px;
  font-size: 17px;
}

.aside-block p,
.sidebar-block p {
  margin: 0;
  color: var(--c-muted);
  font-size: 14px;
  line-height: 1.75;
}

.aside-list,
.sidebar-list {
  margin-top: 12px;
}

.aside-list li + li,
.sidebar-list li + li {
  margin-top: 8px;
  padding-top: 8px;
  border-top: 1px solid var(--c-line);
}

.aside-list a,
.sidebar-list a {
  color: var(--c-primary);
  font-size: 14px;
  line-height: 1.7;
}

/* FAQ 折叠 */
.faq-list {
  display: block;
}

.faq-item {
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  background: var(--c-surface);
}

.faq-item + .faq-item {
  margin-top: 12px;
}

.faq-question {
  padding: 16px 18px;
  color: var(--c-text);
  font-size: 16px;
  font-weight: 700;
  line-height: 1.6;
  cursor: pointer;
  list-style: none;
}

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

.faq-question::after {
  content: "＋";
  float: right;
  color: var(--c-primary);
  font-weight: 400;
}

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

.faq-answer {
  margin: 0;
  padding: 0 18px 18px;
  border-top: 1px solid var(--c-line);
  padding-top: 14px;
  color: var(--c-muted);
  font-size: 15px;
  line-height: 1.75;
}

/* 编号步骤（阅读顺序、合作流程） */
.content-section .step-list {
  grid-template-columns: minmax(0, 1fr);
  counter-reset: step;
}

.content-section .step-item {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 4px 14px;
  align-items: start;
}

.content-section .step-item::before {
  counter-increment: step;
  content: counter(step);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: var(--c-primary-soft);
  color: var(--c-primary-dark);
  font-size: 14px;
  font-weight: 700;
  line-height: 1;
}

.content-section .step-item .step-title,
.content-section .step-item h3 {
  grid-column: 2 / 3;
  margin: 4px 0 6px;
  font-size: 17px;
}

.content-section .step-item p {
  grid-column: 2 / 3;
  margin: 0;
  color: var(--c-muted);
  font-size: 15px;
  line-height: 1.75;
}

/* 设备要点卡 */
.device-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

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

.device-title {
  margin: 0 0 8px;
  font-size: 17px;
}

.device-card p {
  margin: 0 0 10px;
  color: var(--c-muted);
  font-size: 14px;
  line-height: 1.75;
}

.device-card p:last-child {
  margin-bottom: 0;
}

/* 来源列表、反馈列表、合作步骤 */
.source-list {
  display: grid;
  gap: 16px;
}

.source-item {
  padding: 18px 20px;
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  background: var(--c-surface);
}

.source-item h3 {
  margin: 0 0 8px;
  font-size: 17px;
}

.source-item p {
  margin: 0;
  color: var(--c-muted);
  font-size: 15px;
  line-height: 1.75;
}

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

.feedback-item {
  padding: 18px 20px;
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  background: var(--c-surface);
}

.feedback-item h3 {
  margin: 0 0 8px;
  font-size: 17px;
}

.feedback-item p {
  margin: 0;
  color: var(--c-muted);
  font-size: 15px;
  line-height: 1.75;
}

.coop-steps {
  display: grid;
  gap: 16px;
  counter-reset: coop;
}

.coop-step {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 4px 14px;
  align-items: start;
  padding: 18px 20px;
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  background: var(--c-surface);
}

.coop-step::before {
  counter-increment: coop;
  content: counter(coop);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: var(--c-primary);
  color: #fff;
  font-size: 14px;
  font-weight: 700;
  line-height: 1;
}

.coop-step h3 {
  grid-column: 2 / 3;
  margin: 4px 0 6px;
  font-size: 17px;
}

.coop-step p {
  grid-column: 2 / 3;
  margin: 0;
  color: var(--c-muted);
  font-size: 15px;
  line-height: 1.75;
}

/* --------------------------------------------------------------------------
   pages — 首页、题材分类、更新页
   -------------------------------------------------------------------------- */
/* 站内公告条 */
.notice-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px 20px;
  padding: 12px 24px;
  background: var(--c-primary-soft);
  border-bottom: 1px solid var(--c-line);
}

.notice-text {
  margin: 0;
  color: var(--c-primary-dark);
  font-size: 14px;
  line-height: 1.7;
}

/* 首页首屏 */
.hero {
  padding: 48px 0 8px;
}

.hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  align-items: center;
  gap: 40px;
}

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

.hero-kicker {
  margin: 0 0 12px;
  color: var(--c-primary);
  font-size: 14px;
  font-weight: 700;
  line-height: 1.6;
}

.hero-copy h1 {
  margin: 0 0 16px;
  font-size: 34px;
  line-height: 1.3;
}

.hero-lead {
  margin: 0 0 24px;
  max-width: 40em;
  color: var(--c-muted);
  font-size: 16px;
  line-height: 1.75;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 16px;
}

.hero-sub {
  margin: 0;
  color: var(--c-muted);
  font-size: 14px;
  line-height: 1.7;
}

.hero-media {
  min-width: 0;
  margin: 0;
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--c-primary-soft);
}

.hero-media img {
  width: 100%;
  height: 340px;
  object-fit: cover;
  border-radius: var(--radius);
}

.hero-media figcaption {
  padding: 10px 4px 0;
  color: var(--c-muted);
  font-size: 14px;
  line-height: 1.6;
}

/* 首页模块间距 */
.entry-weights,
.tag-wall,
.cover-wall,
.update-strip,
.rank-brief,
.reading-path,
.feedback-entry {
  padding-top: 48px;
}

/* 三类入口权重区 */
.entry-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}

.entry-col {
  display: flex;
  flex-direction: column;
  min-width: 0;
  padding: 22px;
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  background: var(--c-surface);
}

.entry-col--primary {
  border-color: var(--c-primary);
  box-shadow: var(--shadow);
}

.entry-col h3 {
  margin: 0 0 10px;
  font-size: 18px;
}

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

.entry-col .entry-link {
  margin-top: auto;
  padding-top: 16px;
}

/* 最近更新 / 榜单模块尾部入口 */
.strip-more {
  margin: 20px 0 0;
}

/* 题材分类页：分组总览 */
.overview-body {
  max-width: var(--main-col);
}

.overview-body p {
  margin: 0 0 20px;
  font-size: 16px;
  line-height: 1.75;
}

.anchor-nav {
  padding: 18px 20px;
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  background: var(--c-surface);
}

.anchor-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.anchor-list a {
  display: inline-block;
  padding: 7px 14px;
  border-radius: 999px;
  background: var(--c-primary-soft);
  color: var(--c-primary-dark);
  font-size: 14px;
  line-height: 1.6;
  text-decoration: none;
}

.anchor-list a:hover {
  background: var(--c-primary);
  color: #fff;
  text-decoration: none;
}

/* 题材分组容器 */
.genre-group {
  margin-top: 32px;
  padding: 24px;
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  background: var(--c-surface);
}

.genre-group:first-of-type {
  margin-top: 0;
}

.genre-group-head {
  margin-bottom: 18px;
}

.genre-group-head h3 {
  margin: 0 0 8px;
  font-size: 20px;
}

.genre-group-desc {
  margin: 0;
  max-width: 46em;
  color: var(--c-muted);
  font-size: 15px;
  line-height: 1.75;
}

.genre-group-meta {
  margin: 10px 0 0;
}

.genre-group .entry-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.entry-card {
  padding: 0;
  overflow: hidden;
}

.entry-card-figure {
  margin: 0;
  background: var(--c-primary-soft);
}

.entry-card-figure img {
  width: 100%;
  height: 170px;
  object-fit: cover;
}

.entry-card-body {
  display: flex;
  flex-direction: column;
  flex: 1 1 auto;
  padding: 16px;
}

.entry-card-name {
  margin: 0 0 8px;
  font-size: 17px;
}

.entry-card-tag {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 10px;
}

.entry-card-link {
  margin-top: auto;
}

.genre-group-foot {
  margin: 18px 0 0;
}

/* 题材归类说明 */
.rule-list {
  display: grid;
  gap: 14px;
  margin-top: 18px;
}

.rule-item {
  padding: 16px 18px;
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  background: var(--c-surface);
  color: var(--c-muted);
  font-size: 15px;
  line-height: 1.75;
}

/* 更新页：阅读结论 */
.update-summary {
  margin-bottom: 40px;
}

.update-summary h2 {
  margin: 0 0 12px;
  font-size: 24px;
}

.update-summary p {
  color: var(--c-text);
  font-size: 16px;
  line-height: 1.75;
}

/* 更新页：分组 */
.update-groups {
  margin-bottom: 40px;
}

.update-groups > h2 {
  margin: 0 0 10px;
  font-size: 24px;
}

.update-group {
  margin-top: 24px;
  padding: 22px;
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  background: var(--c-surface);
}

.update-group:first-of-type {
  margin-top: 0;
}

.update-group-head {
  margin-bottom: 16px;
}

.update-group-head h3 {
  margin: 0 0 8px;
  font-size: 19px;
}

.update-group-head p {
  margin: 0;
  color: var(--c-muted);
  font-size: 15px;
  line-height: 1.75;
}

.update-group .update-row {
  padding: 14px 0;
  border: 0;
  border-top: 1px solid var(--c-line);
  border-radius: 0;
  background: transparent;
}

.update-group .update-row + .update-row {
  margin-top: 0;
}

.group-entry {
  margin: 16px 0 0;
}

/* 更新页：状态说明 */
.status-legend {
  margin-bottom: 40px;
  padding: 22px;
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  background: var(--c-surface);
}

.status-legend h2 {
  margin: 0 0 10px;
  font-size: 24px;
}

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

.legend-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin: 18px 0 0;
}

.legend-item {
  padding: 16px 18px;
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  background: var(--c-bg);
}

.legend-item dt {
  margin-bottom: 6px;
  font-weight: 700;
  font-size: 16px;
}

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

/* 更新页：数据表区 */
.status-table-section {
  margin-bottom: 40px;
}

.status-table-section h2 {
  margin: 0 0 10px;
  font-size: 24px;
}

.table-lead {
  margin: 0 0 18px;
  color: var(--c-muted);
  font-size: 15px;
  line-height: 1.75;
}

/* 更新页：相关入口 */
.related-entry {
  margin-bottom: 8px;
}

.related-entry h2,
.related-title {
  margin: 0 0 10px;
  font-size: 24px;
}

.related-entry .section-lead {
  margin-bottom: 20px;
}

/* 404 页 */
.error-main {
  display: flex;
  align-items: center;
  padding: 64px 0 72px;
}

.error-panel {
  max-width: 640px;
  padding: 36px;
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  background: var(--c-surface);
  box-shadow: var(--shadow);
}

.error-code {
  margin: 0 0 10px;
  color: var(--c-primary);
  font-size: 14px;
  font-weight: 700;
  line-height: 1.6;
}

.error-title {
  margin: 0 0 12px;
  font-size: 30px;
}

.error-desc {
  margin: 0 0 24px;
  color: var(--c-muted);
  font-size: 16px;
  line-height: 1.75;
}

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

.error-link {
  display: inline-flex;
  align-items: center;
  min-height: 46px;
  padding: 11px 20px;
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  background: var(--c-surface);
  color: var(--c-text);
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
}

.error-link:hover {
  border-color: var(--c-primary);
  color: var(--c-primary-dark);
  text-decoration: none;
}

.error-link--primary {
  border-color: var(--c-primary);
  background: var(--c-primary);
  color: #fff;
}

.error-link--primary:hover {
  background: var(--c-primary-dark);
  color: #fff;
}

/* --------------------------------------------------------------------------
   responsive — 1024 / 768 / 520
   -------------------------------------------------------------------------- */
@media (max-width: 1024px) {
  .page-layout {
    grid-template-columns: minmax(0, 1fr);
  }

  .page-aside,
  .layout-sidebar {
    margin-top: 8px;
  }

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

  .hero-media img {
    height: 300px;
  }

  .entry-grid,
  .feedback-grid,
  .related-grid,
  .related-cards,
  .entry-cards,
  .device-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .cover-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
  }

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

@media (max-width: 768px) {
  .shell,
  .breadcrumb,
  .page-header {
    padding-left: 18px;
    padding-right: 18px;
  }

  .notice-bar {
    padding-left: 18px;
    padding-right: 18px;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .site-nav {
    display: none;
  }

  .nav-list {
    display: none;
  }

  .nav-list.is-open {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }

  .header-inner {
    min-height: 64px;
  }

  h1,
  .page-title,
  .hero-copy h1,
  .error-title {
    font-size: 24px;
  }

  h2,
  .section-title,
  .section-head h2,
  .content-block h2,
  .content-section h2,
  .update-summary h2,
  .update-groups > h2,
  .status-legend h2,
  .status-table-section h2,
  .related-entry h2,
  .related-title {
    font-size: 20px;
  }

  h3,
  .device-title,
  .source-item h3,
  .feedback-item h3,
  .coop-step h3 {
    font-size: 17px;
  }

  body {
    font-size: 15px;
    line-height: 1.8;
  }

  .hero {
    padding-top: 32px;
  }

  .hero-media img {
    height: 230px;
  }

  .page-hero-inner {
    grid-template-columns: minmax(0, 1fr);
    gap: 20px;
  }

  .page-hero-media img,
  .page-hero-figure img {
    height: 200px;
  }

  .entry-grid,
  .feedback-grid,
  .related-grid,
  .related-cards,
  .entry-cards,
  .device-grid,
  .genre-group .entry-grid,
  .reading-path .step-list,
  .legend-list {
    grid-template-columns: minmax(0, 1fr);
  }

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

  .update-row,
  .rank-row,
  .rank-item {
    grid-template-columns: minmax(0, 1fr);
    gap: 8px;
  }

  .update-name,
  .update-row-name,
  .rank-name,
  .rank-title {
    grid-column: 1 / 2;
  }

  .update-note,
  .update-row-note,
  .rank-note {
    grid-column: 1 / 2;
  }

  .update-row .entry-link,
  .rank-row .entry-link,
  .rank-item .entry-link {
    grid-column: 1 / 2;
    grid-row: auto;
    justify-self: start;
  }

  .rank-no {
    grid-column: 1 / 2;
  }

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

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }

  .error-panel {
    padding: 24px;
  }
}

@media (max-width: 520px) {
  .cover-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
  }

  .cover-media img {
    height: 150px;
  }

  .cover-card {
    padding: 12px;
  }

  .tag-list {
    gap: 8px;
  }

  .tag {
    padding: 7px 13px;
    font-size: 13px;
  }

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

  .btn {
    width: 100%;
  }

  .entry-card-figure img {
    height: 150px;
  }

  .data-table {
    min-width: 480px;
  }

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

/* 无障碍：尊重减少动效设置 */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }

  .cover-card:hover,
  .feedback-card:hover,
  .related-card:hover,
  .entry-card:hover {
    transform: none;
  }
}