/* ==========================================================================
   haimosiji.com 全站样式表
   分组：base / layout / components / pages / responsive
   ========================================================================== */

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

:root {
  --c-primary: #126b76;
  --c-primary-dark: #0d545d;
  --c-accent: #d97a3a;
  --c-bg: #f7f8f8;
  --c-card: #ffffff;
  --c-border: #e3e7e8;
  --c-text: #232829;
  --c-muted: #6b7476;
  --radius: 8px;
  --radius-sm: 6px;
  --shadow-card: 0 1px 2px rgba(18, 107, 118, 0.05);
  --shadow-hover: 0 4px 14px rgba(18, 107, 118, 0.12);
  --font-stack: -apple-system, BlinkMacSystemFont, "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  --header-h: 64px;
  --container: 1120px;
}

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

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

body {
  margin: 0;
  font-family: var(--font-stack);
  font-size: 16px;
  line-height: 1.75;
  color: var(--c-text);
  background: var(--c-bg);
  min-width: 320px;
}

h1,
h2,
h3,
h4,
p,
figure,
blockquote,
dl,
dd,
ol,
ul {
  margin: 0;
}

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

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

a {
  color: var(--c-primary);
  text-decoration: none;
  transition: color 0.18s ease;
}

a:hover,
a:focus-visible {
  color: var(--c-primary-dark);
}

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

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

time {
  font-variant-numeric: tabular-nums;
}

/* --------------------------------------------------------------------------
   2. layout — 站点骨架：header / nav / main / footer / 容器
   -------------------------------------------------------------------------- */

.site-body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  background: var(--c-bg);
}

/* --- 页头 --- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: saturate(180%) blur(8px);
  border-bottom: 1px solid var(--c-border);
}

.site-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  max-width: var(--container);
  min-height: var(--header-h);
  margin: 0 auto;
  padding: 0 24px;
}

.nav-side {
  display: flex;
  align-items: center;
  gap: 4px;
  flex: 1 1 0;
  min-width: 0;
}

.nav-side-right {
  justify-content: flex-end;
}

.nav-side li {
  display: flex;
}

.nav-side a {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 6px 12px;
  font-size: 15px;
  font-weight: 500;
  color: var(--c-muted);
  border-radius: var(--radius-sm);
  white-space: nowrap;
}

.nav-side a:hover {
  color: var(--c-primary);
  background: rgba(18, 107, 118, 0.06);
}

.nav-side a.is-current {
  color: var(--c-primary);
  font-weight: 600;
  background: rgba(18, 107, 118, 0.09);
}

.nav-brand {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0;
  flex: 0 0 auto;
  padding: 0 16px;
  text-align: center;
}

.brand-link {
  font-size: 20px;
  font-weight: 700;
  line-height: 1.25;
  color: var(--c-text);
  letter-spacing: 0;
}

.brand-link:hover {
  color: var(--c-primary);
}

.brand-slogan {
  font-size: 12px;
  font-weight: 500;
  line-height: 1.4;
  color: var(--c-muted);
  white-space: nowrap;
}

/* --- 移动端抽屉 --- */

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 10px;
  border-radius: var(--radius-sm);
  flex: 0 0 auto;
}

.nav-toggle:hover {
  background: rgba(18, 107, 118, 0.08);
}

.nav-toggle-bar {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--c-text);
  border-radius: 2px;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.mobile-drawer {
  border-top: 1px solid var(--c-border);
  background: #ffffff;
  max-height: calc(100vh - var(--header-h));
  overflow-y: auto;
}

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

.drawer-list {
  max-width: var(--container);
  margin: 0 auto;
  padding: 8px 16px 16px;
}

.drawer-list a {
  display: flex;
  align-items: center;
  min-height: 48px;
  padding: 8px 12px;
  font-size: 16px;
  font-weight: 500;
  color: var(--c-text);
  border-radius: var(--radius-sm);
  border-bottom: 1px solid var(--c-border);
}

.drawer-list li:last-child a {
  border-bottom: 0;
}

.drawer-list a.is-current {
  color: var(--c-primary);
  font-weight: 600;
  background: rgba(18, 107, 118, 0.07);
}

/* --- 主内容 --- */

.site-main {
  display: block;
  width: 100%;
  flex: 1 0 auto;
}

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

.inner-main {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px 64px;
  width: 100%;
  min-width: 0;
}

/* --- 面包屑 --- */

.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
  max-width: var(--container);
  margin: 0 auto;
  padding: 20px 24px 0;
  font-size: 13px;
  font-weight: 500;
  color: var(--c-muted);
}

.inner-main .breadcrumb {
  max-width: none;
  margin: 0;
  padding: 20px 0 0;
}

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

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

.breadcrumb-sep {
  color: #b6bfc0;
}

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

/* --- 页面标题区（全站统一） --- */

.page-header {
  max-width: var(--container);
  margin: 0 auto;
  padding: 18px 24px 0;
}

.inner-main .page-header {
  max-width: none;
  margin: 0;
  padding: 18px 0 0;
}

.page-title {
  font-size: 32px;
  font-weight: 700;
  line-height: 1.35;
  color: var(--c-text);
  letter-spacing: 0;
}

.page-head {
  max-width: var(--container);
  margin: 0 auto;
  padding: 12px 24px 0;
}

.inner-main .page-head {
  max-width: none;
  margin: 0;
  padding: 12px 0 0;
}

.page-lead {
  max-width: 38em;
  font-size: 16px;
  line-height: 1.75;
  color: var(--c-muted);
}

.page-meta {
  margin-top: 10px;
  font-size: 13px;
  font-weight: 500;
  color: var(--c-muted);
}

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

/* --- 页脚 --- */

.site-footer {
  flex: 0 0 auto;
  background: #ffffff;
  border-top: 1px solid var(--c-border);
  margin-top: 24px;
}

.footer-inner {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 40px;
  max-width: var(--container);
  margin: 0 auto;
  padding: 48px 24px 32px;
}

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

.footer-brand-name {
  font-size: 19px;
  font-weight: 700;
  color: var(--c-text);
}

.footer-slogan {
  margin-top: 4px;
  font-size: 14px;
  font-weight: 600;
  color: var(--c-primary);
}

.footer-desc {
  margin-top: 12px;
  max-width: 34em;
  font-size: 14px;
  line-height: 1.7;
  color: var(--c-muted);
}

.footer-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--c-text);
  margin-bottom: 12px;
}

.footer-nav ul,
.footer-genres ul {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 4px 16px;
}

.footer-nav a,
.footer-genres a {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  font-size: 14px;
  color: var(--c-muted);
}

.footer-nav a:hover,
.footer-genres a:hover {
  color: var(--c-primary);
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 8px 24px;
  max-width: var(--container);
  margin: 0 auto;
  padding: 16px 24px 28px;
  border-top: 1px solid var(--c-border);
  font-size: 13px;
  color: var(--c-muted);
}

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

.footer-copy {
  font-size: 13px;
  color: var(--c-muted);
}

/* --- 移动端底部任务栏 --- */

.task-nav,
.task-bar {
  display: none;
}

.task-nav ul,
.task-bar ul {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}

.task-nav a,
.task-bar a {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  font-size: 13px;
  font-weight: 500;
  color: var(--c-muted);
}

.task-nav a.is-current,
.task-bar a.is-current {
  color: var(--c-primary);
  font-weight: 600;
}

/* --------------------------------------------------------------------------
   3. components — 通用组件
   -------------------------------------------------------------------------- */

/* --- 按钮 --- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 10px 22px;
  font-size: 15px;
  font-weight: 600;
  border-radius: var(--radius);
  border: 1px solid transparent;
  transition: background-color 0.18s ease, border-color 0.18s ease,
    color 0.18s ease, transform 0.18s ease;
}

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

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

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

.btn-outline:hover {
  background: rgba(18, 107, 118, 0.08);
  color: var(--c-primary-dark);
}

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

.btn-ghost:hover {
  border-color: var(--c-primary);
  color: var(--c-primary);
}

/* --- 区块标题 --- */

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

.section-head h2 {
  font-size: 22px;
  font-weight: 700;
  color: var(--c-text);
}

.section-desc {
  margin-top: 6px;
  max-width: 40em;
  font-size: 15px;
  color: var(--c-muted);
}

.section-intro {
  margin: 8px 0 20px;
  max-width: 40em;
  font-size: 15px;
  line-height: 1.75;
  color: var(--c-muted);
}

.section-lead {
  margin: 8px 0 20px;
  max-width: 42em;
  font-size: 15px;
  line-height: 1.75;
  color: var(--c-muted);
}

.section-more {
  margin-top: 20px;
  font-size: 15px;
  font-weight: 600;
}

.section-more a {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  color: var(--c-primary);
}

.section-more a::after {
  content: "›";
  margin-left: 6px;
  font-size: 18px;
  line-height: 1;
}

/* --- 标签 --- */

.tag,
.rank-tag {
  display: inline-flex;
  align-items: center;
  padding: 2px 9px;
  font-size: 13px;
  font-weight: 500;
  line-height: 1.6;
  color: var(--c-primary);
  background: rgba(18, 107, 118, 0.08);
  border-radius: 4px;
  white-space: nowrap;
}

.progress {
  display: inline-flex;
  align-items: center;
  font-size: 13px;
  font-weight: 600;
  color: var(--c-accent);
  white-space: nowrap;
}

/* --- 折叠问答 --- */

.faq-item {
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  background: #ffffff;
  overflow: hidden;
}

.faq-item + .faq-item {
  margin-top: 10px;
}

.faq-q {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-height: 52px;
  padding: 14px 18px;
  font-size: 16px;
  font-weight: 600;
  color: var(--c-text);
  cursor: pointer;
  list-style: none;
}

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

.faq-q::after {
  content: "+";
  flex: 0 0 auto;
  font-size: 20px;
  font-weight: 400;
  line-height: 1;
  color: var(--c-primary);
  transition: transform 0.2s ease;
}

.faq-item[open] .faq-q::after {
  transform: rotate(45deg);
}

.faq-item[open] .faq-q {
  border-bottom: 1px solid var(--c-border);
}

.faq-a,
.faq-answer {
  padding: 14px 18px 18px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--c-muted);
}

.faq-a p + p,
.faq-answer p + p {
  margin-top: 10px;
}

.faq-a a,
.faq-answer a {
  font-weight: 600;
}

/* --- 步骤块（通用序号） --- */

.step-list {
  display: grid;
  gap: 18px;
}

.step-index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  font-size: 14px;
  font-weight: 700;
  color: #ffffff;
  background: var(--c-primary);
  border-radius: 50%;
  flex: 0 0 auto;
}

/* --- 延伸阅读 / 相关链接 --- */

.further-reading,
.read-more,
.extend-reading,
.section-read-more {
  margin-top: 48px;
  padding: 24px;
  background: #ffffff;
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
}

.further-reading h2,
.read-more h2,
.extend-reading h2,
.section-read-more h2 {
  font-size: 18px;
  font-weight: 700;
  color: var(--c-text);
  margin-bottom: 12px;
}

.further-reading ul,
.read-more-list,
.extend-list,
.read-more-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px 24px;
}

.further-reading a,
.read-more-list a,
.extend-list a {
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  font-size: 15px;
  font-weight: 500;
}

.related-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 16px;
  margin-top: 36px;
  padding-top: 20px;
  border-top: 1px solid var(--c-border);
}

.related-links-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--c-muted);
}

.related-links-item {
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  padding: 4px 14px;
  font-size: 14px;
  font-weight: 500;
  border: 1px solid var(--c-border);
  border-radius: 999px;
  background: #ffffff;
}

.related-links-item:hover {
  border-color: var(--c-primary);
  color: var(--c-primary);
}

/* --- 侧栏 --- */

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

.layout-aside,
.page-aside,
.content-aside {
  align-self: start;
  position: sticky;
  top: calc(var(--header-h) + 20px);
  min-width: 0;
}

.aside-links,
.aside-list,
.toc-list {
  display: grid;
  gap: 4px;
}

.aside-links a,
.aside-list a,
.toc-list a {
  display: flex;
  align-items: center;
  min-height: 40px;
  padding: 6px 12px;
  font-size: 14px;
  font-weight: 500;
  color: var(--c-muted);
  border-left: 2px solid var(--c-border);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.aside-links a:hover,
.aside-list a:hover,
.toc-list a:hover,
.aside-links a.is-active,
.toc-list a.is-active {
  color: var(--c-primary);
  background: rgba(18, 107, 118, 0.06);
  border-left-color: var(--c-primary);
}

.aside-desc {
  display: block;
  margin-top: 2px;
  font-size: 13px;
  font-weight: 400;
  color: var(--c-muted);
}

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

/* --- 首屏文字区 --- */

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
  gap: 48px;
  align-items: center;
  padding: 56px 0 52px;
  border-bottom: 1px solid var(--c-border);
}

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

.hero-text h1 {
  font-size: 44px;
  font-weight: 700;
  line-height: 1.25;
  color: var(--c-text);
  letter-spacing: 0;
}

.hero-lead {
  margin-top: 16px;
  max-width: 30em;
  font-size: 17px;
  line-height: 1.8;
  color: var(--c-muted);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.hero-hint {
  margin-top: 22px;
  font-size: 14px;
  color: var(--c-muted);
}

.hero-hint::before {
  content: "↓";
  margin-right: 8px;
  color: var(--c-accent);
  font-weight: 700;
}

.hero-media {
  min-width: 0;
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  background: #ffffff;
  overflow: hidden;
}

.hero-media img {
  width: 100%;
  height: 320px;
  object-fit: cover;
}

.hero-media figcaption {
  padding: 12px 16px;
  font-size: 13px;
  color: var(--c-muted);
  border-top: 1px solid var(--c-border);
}

/* --- 通用首页区块间距 --- */

.genre-wall,
.update-list,
.ranking,
.start-steps,
.changelog-brief,
.faq-brief {
  padding: 56px 0 0;
}

/* --- 题材封面墙 --- */

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

.genre-card {
  min-width: 0;
}

.genre-card > a {
  display: flex;
  flex-direction: column;
  height: 100%;
  background: #ffffff;
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  overflow: hidden;
  color: inherit;
  transition: border-color 0.18s ease, transform 0.18s ease,
    box-shadow 0.18s ease;
}

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

.card-media {
  margin: 0;
  background: var(--c-bg);
}

.card-media img {
  width: 100%;
  height: 168px;
  object-fit: cover;
}

.card-title {
  padding: 14px 16px 0;
  font-size: 17px;
  font-weight: 600;
  color: var(--c-text);
}

.card-desc {
  padding: 4px 16px 16px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--c-muted);
}

/* --- 最近更新列表 --- */

.update-rows {
  display: grid;
  gap: 12px;
}

.update-row {
  display: grid;
  grid-template-columns: 108px minmax(0, 1fr);
  gap: 16px;
  align-items: center;
  padding: 12px;
  background: #ffffff;
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  transition: border-color 0.18s ease, transform 0.18s ease;
}

.update-row:hover {
  border-color: var(--c-primary);
  transform: translateY(-2px);
}

.row-media {
  margin: 0;
  background: var(--c-bg);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.row-media img {
  width: 100%;
  height: 76px;
  object-fit: cover;
}

.row-body {
  min-width: 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 12px;
}

.row-title {
  flex: 1 1 100%;
  font-size: 17px;
  font-weight: 600;
  color: var(--c-text);
}

.row-desc {
  flex: 1 1 100%;
  font-size: 14px;
  color: var(--c-muted);
}

/* --- 热度榜单（首页） --- */

.rank-list {
  display: grid;
  gap: 8px;
}

.rank-row {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr) auto;
  gap: 12px;
  align-items: center;
  padding: 12px 16px;
  background: #ffffff;
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  transition: border-color 0.18s ease, transform 0.18s ease;
}

.rank-row:hover {
  border-color: var(--c-primary);
  transform: translateY(-2px);
}

.rank-no,
.rank-pos {
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 700;
  line-height: 1;
  color: var(--c-accent);
  font-variant-numeric: tabular-nums;
}

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

.rank-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--c-text);
}

.rank-desc {
  margin-top: 2px;
  font-size: 14px;
  color: var(--c-muted);
}

/* --- 阅读入门三步（首页） --- */

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

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

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

.step-title {
  margin-top: 12px;
  font-size: 17px;
  font-weight: 600;
  color: var(--c-text);
}

.step-desc {
  margin-top: 6px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--c-muted);
}

/* --- 更新记录摘要 --- */

.brief-rows {
  display: grid;
  gap: 2px;
  background: #ffffff;
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  overflow: hidden;
}

.brief-row {
  display: grid;
  grid-template-columns: 120px minmax(0, 1fr);
  gap: 16px;
  align-items: center;
  padding: 14px 18px;
  border-bottom: 1px solid var(--c-border);
}

.brief-row:last-child {
  border-bottom: 0;
}

.brief-date {
  font-size: 14px;
  font-weight: 600;
  color: var(--c-primary);
}

.brief-desc {
  font-size: 15px;
  color: var(--c-muted);
}

/* --- 常见问题摘要 --- */

.faq-list {
  display: grid;
}

/* --------------------------------------------------------------------------
   5. pages — 内页通用
   -------------------------------------------------------------------------- */

.section {
  margin-top: 48px;
}

.section-block {
  margin-top: 48px;
}

.section h2,
.section-block h2,
.genre-groups h2,
.tag-index h2,
.genre-usage h2,
.guide-steps h2,
.guide-compare h2,
.guide-follow h2,
.guide-next h2,
.read-next h2,
.faq-group h2,
.rank-group-section h2,
.rank-scope h2,
.rank-tips h2 {
  font-size: 22px;
  font-weight: 700;
  color: var(--c-text);
}

/* --- 双栏布局（主内容 + 侧栏） --- */

.page-layout {
  display: grid;
  grid-template-columns: minmax(0, 8fr) minmax(0, 4fr);
  gap: 40px;
  max-width: var(--container);
  margin: 0 auto;
  padding: 24px 24px 0;
  align-items: start;
}

.page-layout .inner-main {
  max-width: none;
  margin: 0;
  padding: 0;
}

.page-layout .page-header,
.page-layout .page-head {
  max-width: none;
  margin: 0;
  padding-left: 0;
  padding-right: 0;
}

.layout-shell .inner-main {
  max-width: none;
  margin: 0;
  padding: 0;
}

.layout-shell .page-header,
.layout-shell .page-title,
.layout-shell .breadcrumb {
  max-width: none;
  margin: 0;
  padding-left: 0;
  padding-right: 0;
}

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

/* --- 标题区信息条 --- */

.page-title-inner {
  min-width: 0;
}

.meta-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  margin-top: 14px;
  padding: 12px 0;
  border-top: 1px solid var(--c-border);
  border-bottom: 1px solid var(--c-border);
}

.meta-item {
  font-size: 13px;
  font-weight: 500;
  color: var(--c-muted);
}

/* --- 版本信息条 --- */

.version-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 20px;
  margin-top: 18px;
  padding: 12px 16px;
  background: #ffffff;
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  font-size: 13px;
  color: var(--c-muted);
}

.version-current {
  font-weight: 600;
  color: var(--c-text);
}

.version-item {
  font-weight: 500;
}

.version-link {
  font-weight: 600;
}

/* --- 题材锚点条 --- */

.genre-anchor-bar {
  max-width: 900px;
  margin: 24px auto 0;
  padding: 0 24px;
}

.genre-anchor-bar ul {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.genre-anchor-bar a {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 6px 16px;
  font-size: 14px;
  font-weight: 500;
  color: var(--c-muted);
  background: #ffffff;
  border: 1px solid var(--c-border);
  border-radius: 999px;
}

.genre-anchor-bar a:hover {
  color: var(--c-primary);
  border-color: var(--c-primary);
}

/* --------------------------------------------------------------------------
   6. pages — 题材分类
   -------------------------------------------------------------------------- */

.genre-groups {
  min-width: 0;
}

.genre-group {
  margin-top: 28px;
  padding: 20px;
  background: #ffffff;
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  scroll-margin-top: calc(var(--header-h) + 20px);
}

.genre-group-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}

.genre-group-head h3 {
  font-size: 19px;
  font-weight: 600;
  color: var(--c-text);
}

.genre-tag {
  padding: 2px 10px;
  font-size: 13px;
  font-weight: 500;
  color: var(--c-primary);
  background: rgba(18, 107, 118, 0.08);
  border-radius: 4px;
}

.genre-desc {
  margin-top: 10px;
  max-width: 44em;
  font-size: 15px;
  line-height: 1.8;
  color: var(--c-muted);
}

.genre-figure {
  margin-top: 16px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--c-bg);
}

.genre-figure img {
  width: 100%;
  height: 220px;
  object-fit: cover;
}

.genre-figure figcaption {
  padding: 10px 14px;
  font-size: 13px;
  color: var(--c-muted);
  background: #ffffff;
  border-top: 1px solid var(--c-border);
}

/* --- 细分标签索引 --- */

.tag-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.tag-item {
  min-width: 0;
  padding: 14px;
  background: #ffffff;
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  transition: border-color 0.18s ease, transform 0.18s ease;
}

.tag-item:hover {
  border-color: var(--c-primary);
  transform: translateY(-2px);
}

.tag-item a {
  display: block;
  font-size: 15px;
  font-weight: 600;
  color: var(--c-text);
}

.tag-item a:hover {
  color: var(--c-primary);
}

.tag-item p {
  margin-top: 4px;
  font-size: 13px;
  line-height: 1.65;
  color: var(--c-muted);
}

/* --- 分类使用说明 --- */

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

.genre-usage .step-item {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.genre-usage .step-item h3 {
  font-size: 17px;
  font-weight: 600;
  color: var(--c-text);
}

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

/* --------------------------------------------------------------------------
   7. pages — 最近更新
   -------------------------------------------------------------------------- */

.section-timeline {
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
  padding: 0 24px;
}

.section-progress-note,
.section-order {
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
  padding: 0 24px;
}

.section-read-more {
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

.timeline-group {
  margin-top: 28px;
  scroll-margin-top: calc(var(--header-h) + 20px);
}

.timeline-group h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--c-text);
  padding-bottom: 10px;
  border-bottom: 1px solid var(--c-border);
}

.timeline-item {
  display: grid;
  grid-template-columns: 140px minmax(0, 1fr);
  gap: 20px;
  padding: 18px 0;
  border-bottom: 1px solid var(--c-border);
}

.timeline-date {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 0;
}

.timeline-date time {
  font-size: 14px;
  font-weight: 600;
  color: var(--c-text);
}

.version-tag {
  align-self: flex-start;
  padding: 2px 9px;
  font-size: 12px;
  font-weight: 500;
  color: var(--c-accent);
  background: rgba(217, 122, 58, 0.12);
  border-radius: 4px;
}

.timeline-body {
  display: grid;
  grid-template-columns: 96px minmax(0, 1fr);
  gap: 16px;
  align-items: start;
  min-width: 0;
}

.timeline-thumb {
  margin: 0;
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--c-bg);
}

.timeline-thumb img {
  width: 100%;
  height: 68px;
  object-fit: cover;
}

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

.timeline-entry {
  font-size: 16px;
  font-weight: 600;
  color: var(--c-text);
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 8px;
}

.tag-list .tag {
  font-size: 12px;
}

.timeline-progress {
  margin-top: 8px;
  font-size: 13px;
  font-weight: 600;
  color: var(--c-accent);
}

/* --- 进度标注说明 --- */

.note-list {
  display: grid;
  gap: 4px;
  background: #ffffff;
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  overflow: hidden;
}

.note-list dt {
  padding: 14px 18px 0;
  font-size: 16px;
  font-weight: 600;
  color: var(--c-text);
}

.note-list dd {
  padding: 4px 18px 14px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--c-muted);
  border-bottom: 1px solid var(--c-border);
}

.note-list dd:last-of-type {
  border-bottom: 0;
}

/* --- 追更阅读顺序 --- */

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

.section-order .step-item {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 20px;
  background: #ffffff;
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
}

.section-order .step-item h3 {
  font-size: 17px;
  font-weight: 600;
  color: var(--c-text);
}

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

/* --------------------------------------------------------------------------
   8. pages — 热度榜单
   -------------------------------------------------------------------------- */

.page-hero {
  max-width: var(--container);
  margin: 0 auto;
  padding: 12px 24px 0;
}

.inner-main .page-hero {
  max-width: none;
  margin: 0;
  padding: 12px 0 0;
}

.rank-notice {
  max-width: var(--container);
  margin: 22px auto 0;
  padding: 0 24px;
}

.inner-main .rank-notice {
  max-width: none;
  margin: 22px 0 0;
  padding: 0;
}

.rank-notice-line {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
  padding: 14px 18px;
  background: #ffffff;
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  font-size: 14px;
  color: var(--c-muted);
}

.rank-notice-item {
  position: relative;
  padding-left: 14px;
}

.rank-notice-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 5px;
  height: 5px;
  margin-top: -2.5px;
  background: var(--c-accent);
  border-radius: 50%;
}

.rank-group-section {
  max-width: 1040px;
  margin: 40px auto 0;
  padding: 0 24px;
}

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

.rank-group {
  min-width: 0;
  padding: 18px;
  background: #ffffff;
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  scroll-margin-top: calc(var(--header-h) + 20px);
}

.rank-group-head {
  padding-bottom: 12px;
  border-bottom: 1px solid var(--c-border);
}

.rank-group-head h3 {
  font-size: 17px;
  font-weight: 600;
  color: var(--c-text);
}

.rank-group-note {
  margin-top: 4px;
  font-size: 13px;
  color: var(--c-muted);
}

.rank-group .rank-list {
  margin-top: 8px;
}

.rank-group .rank-row {
  grid-template-columns: 34px 56px minmax(0, 1fr);
  gap: 10px;
  padding: 10px 0;
  background: none;
  border: 0;
  border-bottom: 1px solid var(--c-border);
  border-radius: 0;
}

.rank-group .rank-row:last-child {
  border-bottom: 0;
}

.rank-group .rank-row:hover {
  transform: none;
  border-color: var(--c-border);
}

.rank-group .rank-desc {
  grid-column: 3;
  font-size: 14px;
  font-weight: 500;
  color: var(--c-text);
}

.rank-group .rank-tag {
  grid-column: 3;
  justify-self: start;
  margin-top: 2px;
}

.rank-cover {
  margin: 0;
  border-radius: 4px;
  overflow: hidden;
  background: var(--c-bg);
}

.rank-cover img {
  width: 100%;
  height: 44px;
  object-fit: cover;
}

.rank-scope,
.rank-tips {
  max-width: 1040px;
  margin: 48px auto 0;
  padding: 0 24px;
}

.scope-list {
  display: grid;
  gap: 4px;
  background: #ffffff;
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  overflow: hidden;
}

.scope-list dt {
  padding: 14px 18px 0;
  font-size: 16px;
  font-weight: 600;
  color: var(--c-text);
}

.scope-list dd {
  padding: 4px 18px 14px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--c-muted);
  border-bottom: 1px solid var(--c-border);
}

.scope-list dd:last-of-type {
  border-bottom: 0;
}

.tips-list {
  display: grid;
  gap: 8px;
}

.tips-list li {
  position: relative;
  padding: 12px 18px 12px 40px;
  background: #ffffff;
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  font-size: 15px;
  line-height: 1.75;
  color: var(--c-muted);
}

.tips-list li::before {
  content: "";
  position: absolute;
  left: 18px;
  top: 22px;
  width: 6px;
  height: 6px;
  background: var(--c-primary);
  border-radius: 50%;
}

/* --------------------------------------------------------------------------
   9. pages — 阅读入门
   -------------------------------------------------------------------------- */

.guide-steps,
.guide-compare,
.guide-follow,
.guide-next,
.read-next {
  margin-top: 48px;
}

.step-block {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr);
  gap: 16px;
  padding: 20px;
  background: #ffffff;
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
}

.step-block + .step-block {
  margin-top: 16px;
}

.step-block .step-index {
  grid-row: span 2;
}

.step-block h3 {
  font-size: 17px;
  font-weight: 600;
  color: var(--c-text);
}

.step-block p {
  font-size: 15px;
  line-height: 1.8;
  color: var(--c-muted);
}

.step-figure {
  grid-column: 2;
  margin: 0;
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--c-bg);
}

.step-figure img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.step-figure figcaption {
  padding: 10px 14px;
  font-size: 13px;
  color: var(--c-muted);
  background: #ffffff;
  border-top: 1px solid var(--c-border);
}

/* --- 连载与单元对照 --- */

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

.compare-col {
  min-width: 0;
  padding: 20px;
  background: #ffffff;
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
}

.compare-col h3 {
  font-size: 17px;
  font-weight: 600;
  color: var(--c-text);
}

.compare-desc {
  margin-top: 8px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--c-muted);
}

.compare-list {
  display: grid;
  gap: 8px;
  margin-top: 14px;
}

.compare-list li {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--c-muted);
}

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

/* --- 追更顺序 --- */

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

.follow-list li {
  padding: 16px 20px;
  background: #ffffff;
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
}

.follow-list h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--c-text);
}

.follow-list p {
  margin-top: 4px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--c-muted);
}

/* --- 下一步 / 延伸 --- */

.guide-figure {
  margin: 0 0 18px;
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--c-bg);
  border: 1px solid var(--c-border);
}

.guide-figure img {
  width: 100%;
  height: 240px;
  object-fit: cover;
}

.guide-figure figcaption {
  padding: 10px 14px;
  font-size: 13px;
  color: var(--c-muted);
  background: #ffffff;
  border-top: 1px solid var(--c-border);
}

.guide-links {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.guide-links a {
  display: flex;
  align-items: center;
  min-height: 48px;
  padding: 10px 18px;
  font-size: 15px;
  font-weight: 600;
  background: #ffffff;
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
}

.guide-links a:hover {
  border-color: var(--c-primary);
}

.read-next-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px 24px;
}

.read-next-list a {
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  font-size: 15px;
  font-weight: 500;
}

/* --------------------------------------------------------------------------
   10. pages — 常见问题
   -------------------------------------------------------------------------- */

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

.page-hero-media {
  margin: 18px 0 0;
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--c-bg);
  border: 1px solid var(--c-border);
}

.page-hero-media img {
  width: 100%;
  height: 220px;
  object-fit: cover;
}

.faq-group {
  margin-top: 40px;
}

.faq-group .section-desc {
  margin-bottom: 16px;
}

/* --------------------------------------------------------------------------
   11. pages — 更新记录
   -------------------------------------------------------------------------- */

.section-log,
.section-version,
.section-history,
.section-read {
  max-width: 960px;
  margin-left: auto;
  margin-right: auto;
  padding: 0 24px;
}

.page-changelog .version-bar,
.page-faq .version-bar {
  max-width: 960px;
  margin-left: auto;
  margin-right: auto;
  margin-top: 22px;
}

.log-list {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--c-border);
}

.log-item {
  display: grid;
  grid-template-columns: 150px minmax(0, 1fr);
  gap: 24px;
  padding: 20px 0;
  border-bottom: 1px solid var(--c-border);
  scroll-margin-top: calc(var(--header-h) + 24px);
}

.log-when {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 0;
}

.log-when time {
  font-size: 14px;
  font-weight: 600;
  color: var(--c-text);
}

.log-version {
  align-self: flex-start;
  padding: 2px 9px;
  font-size: 12px;
  font-weight: 500;
  color: var(--c-primary);
  background: rgba(18, 107, 118, 0.08);
  border-radius: 4px;
}

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

.log-body h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--c-text);
}

.log-body p {
  margin-top: 6px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--c-muted);
}

.log-scope {
  font-size: 13px;
  font-weight: 500;
}

.log-scope a {
  font-weight: 600;
}

.version-list {
  display: grid;
  gap: 4px;
  background: #ffffff;
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  overflow: hidden;
}

.version-row {
  display: grid;
  grid-template-columns: 120px minmax(0, 1fr);
  gap: 16px;
  padding: 14px 18px;
  border-bottom: 1px solid var(--c-border);
}

.version-row:last-child {
  border-bottom: 0;
}

.version-row dt {
  font-size: 15px;
  font-weight: 600;
  color: var(--c-primary);
}

.version-row dd {
  font-size: 15px;
  line-height: 1.8;
  color: var(--c-muted);
}

.history-list {
  display: grid;
  gap: 8px;
}

.history-list li {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px 14px;
  padding: 14px 18px;
  background: #ffffff;
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
}

.history-list a {
  font-size: 15px;
  font-weight: 600;
}

.history-list span {
  font-size: 14px;
  color: var(--c-muted);
}

.read-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px 24px;
}

.read-list a {
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  font-size: 15px;
  font-weight: 500;
}

.page-figure {
  max-width: 960px;
  margin: 40px auto 0;
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--c-bg);
  border: 1px solid var(--c-border);
}

.page-figure img {
  width: 100%;
  height: 220px;
  object-fit: cover;
}

.page-figure figcaption {
  padding: 10px 16px;
  font-size: 13px;
  color: var(--c-muted);
  background: #ffffff;
  border-top: 1px solid var(--c-border);
}

/* --------------------------------------------------------------------------
   12. pages — 编辑标准
   -------------------------------------------------------------------------- */

.section-figure {
  margin: 0 0 20px;
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--c-bg);
  border: 1px solid var(--c-border);
}

.section-figure img {
  width: 100%;
  height: 220px;
  object-fit: cover;
}

.section-figure figcaption {
  padding: 10px 16px;
  font-size: 13px;
  color: var(--c-muted);
  background: #ffffff;
  border-top: 1px solid var(--c-border);
}

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

.rule-item {
  padding: 18px 20px;
  background: #ffffff;
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
}

.rule-item h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--c-text);
}

.rule-item p {
  margin-top: 6px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--c-muted);
}

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

.record-item {
  padding: 18px 20px;
  background: #ffffff;
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
}

.record-item h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--c-text);
}

.record-item p {
  margin-top: 6px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--c-muted);
}

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

.section-block .step-item {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 20px;
  background: #ffffff;
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
}

.section-block .step-item h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--c-text);
}

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

.content-aside .aside-list a {
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  padding: 10px 14px;
  border-left: 2px solid var(--c-border);
}

/* --------------------------------------------------------------------------
   13. pages — 404
   -------------------------------------------------------------------------- */

.error-main {
  max-width: 760px;
  margin: 0 auto;
  padding: 72px 24px 96px;
  text-align: left;
}

.error-hero h1 {
  font-size: 36px;
  font-weight: 700;
  line-height: 1.3;
  color: var(--c-text);
}

.error-lead {
  margin-top: 14px;
  font-size: 16px;
  line-height: 1.8;
  color: var(--c-muted);
}

.error-code {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 600;
  color: var(--c-accent);
}

.error-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.error-paths {
  margin-top: 52px;
}

.error-paths h2 {
  font-size: 20px;
  font-weight: 700;
  color: var(--c-text);
  margin-bottom: 14px;
}

.error-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.error-list a {
  display: flex;
  align-items: center;
  min-height: 52px;
  padding: 12px 18px;
  font-size: 15px;
  font-weight: 600;
  background: #ffffff;
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
}

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

/* --------------------------------------------------------------------------
   14. responsive — 960px 断点
   -------------------------------------------------------------------------- */

@media (max-width: 960px) {
  .nav-side {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }

  .site-nav {
    justify-content: space-between;
    padding: 0 16px;
  }

  .nav-brand {
    align-items: flex-start;
    padding: 0;
    text-align: left;
  }

  .hero {
    grid-template-columns: minmax(0, 1fr);
    gap: 32px;
    padding: 40px 0 36px;
  }

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

  .hero-media img {
    height: 260px;
  }

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

  .step-grid,
  .genre-usage .step-list,
  .section-order .step-list,
  .section-block .step-list {
    grid-template-columns: minmax(0, 1fr);
  }

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

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

  .page-layout {
    grid-template-columns: minmax(0, 1fr);
    gap: 32px;
    padding: 24px 16px 0;
  }

  .layout-aside,
  .page-aside,
  .content-aside {
    position: static;
    top: auto;
  }

  .layout-aside .aside-links,
  .page-aside .toc-list {
    display: flex;
    flex-wrap: nowrap;
    gap: 8px;
    overflow-x: auto;
    padding-bottom: 4px;
    -webkit-overflow-scrolling: touch;
  }

  .layout-aside .aside-links li,
  .page-aside .toc-list li {
    flex: 0 0 auto;
  }

  .layout-aside .aside-links a,
  .page-aside .toc-list a {
    min-height: 40px;
    padding: 6px 16px;
    border-left: 0;
    border: 1px solid var(--c-border);
    border-radius: 999px;
    background: #ffffff;
    white-space: nowrap;
  }

  .footer-inner {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 32px;
    padding: 40px 16px 24px;
  }

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

  .footer-bottom {
    padding: 16px 16px 24px;
  }
}

/* --------------------------------------------------------------------------
   15. responsive — 640px 断点
   -------------------------------------------------------------------------- */

@media (max-width: 640px) {
  body {
    font-size: 16px;
  }

  .site-main {
    padding-bottom: 64px;
  }

  .home-main,
  .inner-main {
    padding-left: 16px;
    padding-right: 16px;
  }

  .breadcrumb,
  .page-header,
  .page-head,
  .page-hero {
    padding-left: 16px;
    padding-right: 16px;
  }

  .inner-main .breadcrumb,
  .inner-main .page-header,
  .inner-main .page-head,
  .inner-main .page-hero {
    padding-left: 0;
    padding-right: 0;
  }

  .page-layout {
    padding-left: 16px;
    padding-right: 16px;
  }

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

  .hero-text h1 {
    font-size: 30px;
  }

  .hero-lead {
    font-size: 16px;
  }

  .hero-actions .btn {
    flex: 1 1 auto;
  }

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

  .genre-wall,
  .update-list,
  .ranking,
  .start-steps,
  .changelog-brief,
  .faq-brief {
    padding-top: 40px;
  }

  .genre-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
  }

  .card-media img {
    height: 120px;
  }

  .card-title {
    padding: 12px 12px 0;
    font-size: 16px;
  }

  .card-desc {
    padding: 4px 12px 12px;
    font-size: 13px;
  }

  .update-row {
    grid-template-columns: minmax(0, 1fr);
    gap: 10px;
  }

  .row-media img {
    height: 140px;
  }

  .rank-row {
    grid-template-columns: 32px minmax(0, 1fr);
    gap: 8px 12px;
    padding: 12px 14px;
  }

  .rank-row .tag {
    grid-column: 2;
    justify-self: start;
  }

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

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

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

  .timeline-date {
    flex-direction: row;
    align-items: center;
    gap: 10px;
  }

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

  .timeline-thumb img {
    height: 150px;
  }

  .compare-grid,
  .guide-links,
  .read-next-list,
  .read-list,
  .error-list,
  .further-reading ul,
  .read-more-list,
  .extend-list {
    grid-template-columns: minmax(0, 1fr);
  }

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

  .step-block .step-index {
    grid-row: auto;
  }

  .step-figure {
    grid-column: 1;
  }

  .log-item {
    grid-template-columns: minmax(0, 1fr);
    gap: 10px;
  }

  .log-when {
    flex-direction: row;
    align-items: center;
    gap: 10px;
  }

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

  .section-timeline,
  .section-progress-note,
  .section-order,
  .section-log,
  .section-version,
  .section-history,
  .section-read,
  .rank-group-section,
  .rank-scope,
  .rank-tips,
  .page-changelog .version-bar,
  .page-faq .version-bar {
    padding-left: 16px;
    padding-right: 16px;
  }

  .genre-anchor-bar {
    padding-left: 16px;
    padding-right: 16px;
  }

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

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

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

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

  .task-nav,
  .task-bar {
    display: block;
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 70;
    background: rgba(255, 255, 255, 0.97);
    border-top: 1px solid var(--c-border);
    backdrop-filter: saturate(180%) blur(8px);
    padding-bottom: env(safe-area-inset-bottom, 0);
  }

  .site-body {
    padding-bottom: 56px;
  }
}

/* --------------------------------------------------------------------------
   16. 动效增强（不依赖 JS 显示内容）
   -------------------------------------------------------------------------- */

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

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