/* ==========================================================================
   muqianshi.cn 里番动漫在线 · 全站样式表
   分组：base / layout / components / pages / responsive
   ========================================================================== */

/* --------------------------------------------------------------------------
   base · 变量与基础重置
   -------------------------------------------------------------------------- */
:root {
  --c-brand: #0F6E78;
  --c-brand-dark: #0A5158;
  --c-brand-soft: #E4F0F1;
  --c-accent: #F0714A;
  --c-accent-soft: #FDEAE3;
  --c-ink: #1B2430;
  --c-text: #3C4854;
  --c-muted: #6B7784;
  --c-bg: #F4F7F8;
  --c-card: #FFFFFF;
  --c-line: #DCE4E7;
  --c-line-strong: #C3D0D4;
  --font-sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Noto Sans SC",
    "Microsoft YaHei", "Hiragino Sans GB", sans-serif;
  --font-num: ui-monospace, "SFMono-Regular", "Menlo", "Consolas", monospace;
  --w-content: 1120px;
  --w-main: 760px;
  --w-side: 320px;
  --r-card: 6px;
  --r-pill: 999px;
  --header-h: 72px;
  --header-h-compact: 56px;
  --shadow-1: 0 1px 2px rgba(27, 36, 48, 0.05);
  --shadow-2: 0 4px 14px rgba(15, 110, 120, 0.08);
}

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

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

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

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

p {
  margin: 0;
}

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

a {
  color: var(--c-brand);
  text-decoration: none;
  transition: color 0.18s ease, border-color 0.18s ease, background-color 0.18s ease;
}

a:hover {
  color: var(--c-accent);
}

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

figure {
  margin: 0;
}

button {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
  cursor: pointer;
}

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

/* 编号、名次、日期使用等宽数字 */
.pick-index,
.rank-no,
.update-date,
.flow-no,
.flow-num,
.recommend-rank,
.node-day,
.error-code {
  font-family: var(--font-num);
  font-variant-numeric: tabular-nums;
}

/* --------------------------------------------------------------------------
   layout · 全站骨架：页头 / 导航 / 主容器 / 页脚 / 两栏布局
   -------------------------------------------------------------------------- */

/* 页头：全站粘性固定 */
.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  background-color: var(--c-card);
  border-bottom: 1px solid var(--c-line);
  box-shadow: var(--shadow-1);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 24px;
  max-width: var(--w-content);
  margin: 0 auto;
  padding: 0 24px;
  height: var(--header-h);
  transition: height 0.2s ease;
}

.site-header.is-compact .header-inner {
  height: var(--header-h-compact);
}

/* 品牌区 */
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: 0 0 auto;
  color: var(--c-ink);
}

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

.brand-mark {
  display: block;
  width: 34px;
  height: 34px;
  flex: 0 0 34px;
  border-radius: 6px;
  background-color: var(--c-brand);
  position: relative;
}

.brand-mark::after {
  content: "";
  position: absolute;
  left: 9px;
  top: 9px;
  width: 16px;
  height: 16px;
  border: 2px solid #FFFFFF;
  border-radius: 3px;
  border-right-color: transparent;
  border-bottom-color: transparent;
  transform: rotate(-45deg);
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.25;
}

.brand-name {
  font-size: 17px;
  font-weight: 700;
  color: var(--c-ink);
  white-space: nowrap;
}

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

/* 主导航 */
.site-nav {
  flex: 1 1 auto;
  display: flex;
  justify-content: flex-end;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 2px;
}

.nav-item {
  display: block;
}

.nav-item > a {
  display: block;
  padding: 8px 12px;
  font-size: 15px;
  color: var(--c-text);
  border-radius: 4px;
  white-space: nowrap;
  position: relative;
}

.nav-item > a:hover {
  color: var(--c-brand);
  background-color: var(--c-brand-soft);
}

.nav-item.is-current > a,
.nav-item > a.is-current {
  color: var(--c-brand);
  font-weight: 600;
}

.nav-item.is-current > a::after,
.nav-item > a.is-current::after {
  content: "";
  position: absolute;
  left: 12px;
  right: 12px;
  bottom: 0;
  height: 2px;
  border-radius: 2px;
  background-color: var(--c-brand);
}

/* 移动端汉堡按钮：桌面隐藏 */
.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  flex: 0 0 44px;
  padding: 0;
  border: 1px solid var(--c-line-strong);
  border-radius: 6px;
  background-color: var(--c-card);
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
}

.nav-toggle-bar {
  display: block;
  width: 18px;
  height: 2px;
  border-radius: 2px;
  background-color: var(--c-ink);
}

/* 首页两栏布局：主内容在前，摘要栏在后 */
.page-layout {
  display: grid;
  grid-template-columns: minmax(0, var(--w-main)) var(--w-side);
  gap: 40px;
  max-width: var(--w-content);
  margin: 0 auto;
  padding: 32px 24px 56px;
  align-items: start;
}

/* 内页主容器：统一 1120px */
.site-main {
  display: block;
}

.inner-main {
  max-width: var(--w-content);
  margin: 0 auto;
  padding: 24px 24px 56px;
}

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

/* 面包屑：全站内页统一 */
.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
  font-size: 13px;
  color: var(--c-muted);
  padding: 4px 0 14px;
}

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

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

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

.breadcrumb-current {
  color: var(--c-ink);
  font-weight: 600;
}

/* 内页标题区：全站统一 */
.page-header {
  margin: 0 0 12px;
}

.page-title {
  font-size: 30px;
  font-weight: 700;
  color: var(--c-ink);
  line-height: 1.3;
}

/* 页脚：全站唯一结构 */
.site-footer {
  margin-top: 24px;
  background-color: #10262B;
  color: #C6D4D7;
}

.footer-inner {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 32px;
  max-width: var(--w-content);
  margin: 0 auto;
  padding: 44px 24px 32px;
}

.footer-title {
  font-size: 15px;
  font-weight: 700;
  color: #FFFFFF;
  margin: 0 0 14px;
}

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

.footer-links a {
  display: inline-block;
  font-size: 14px;
  color: #A9BCC0;
  padding: 2px 0;
}

.footer-links a:hover {
  color: #FFFFFF;
}

.footer-bottom {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px 20px;
  max-width: var(--w-content);
  margin: 0 auto;
  padding: 18px 24px 28px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
}

.footer-brand {
  font-size: 14px;
  font-weight: 700;
  color: #FFFFFF;
}

.footer-desc {
  flex: 1 1 260px;
  font-size: 13px;
  color: #8FA5A9;
}

.back-top {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 14px;
  font-size: 13px;
  color: #C6D4D7;
  border: 1px solid rgba(255, 255, 255, 0.24);
  border-radius: var(--r-pill);
}

.back-top:hover {
  color: #FFFFFF;
  border-color: rgba(255, 255, 255, 0.6);
}

/* --------------------------------------------------------------------------
   components · 通用组件
   -------------------------------------------------------------------------- */

/* 按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 22px;
  font-size: 15px;
  font-weight: 600;
  border-radius: 6px;
  border: 1px solid transparent;
}

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

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

.btn-ghost {
  background-color: transparent;
  color: var(--c-brand);
  border-color: var(--c-line-strong);
}

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

/* 行内文字链接 */
.link-inline {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 14px;
  font-weight: 600;
  color: var(--c-brand);
}

.link-inline::after {
  content: "→";
  font-size: 13px;
}

.link-inline:hover {
  color: var(--c-accent);
}

/* 题材标签胶囊 */
.tag-pill {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  padding: 0 14px;
  font-size: 13px;
  color: var(--c-brand);
  background-color: var(--c-brand-soft);
  border: 1px solid transparent;
  border-radius: var(--r-pill);
}

.tag-pill:hover,
.tag-pill.is-active {
  color: #FFFFFF;
  background-color: var(--c-brand);
}

/* 通用标签 */
.tag {
  display: inline-flex;
  align-items: center;
  min-height: 26px;
  padding: 0 10px;
  font-size: 12px;
  color: var(--c-brand);
  background-color: var(--c-brand-soft);
  border-radius: var(--r-pill);
}

.tag:hover {
  color: #FFFFFF;
  background-color: var(--c-brand);
}

/* 区块与区块标题 */
.section {
  margin: 0 0 40px;
}

.section-head {
  margin: 0 0 18px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--c-line);
}

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

.section-desc,
.section-note,
.section-lead,
.section-intro {
  margin-top: 6px;
  font-size: 15px;
  color: var(--c-muted);
  max-width: 860px;
}

.section-more {
  display: inline-block;
  margin-top: 8px;
  font-size: 14px;
  font-weight: 600;
  color: var(--c-brand);
}

.section-more:hover {
  color: var(--c-accent);
}

/* 内页标题区说明段 */
.page-kicker,
.page-eyebrow,
.page-title-kicker {
  font-size: 13px;
  font-weight: 600;
  color: var(--c-accent);
  margin-bottom: 6px;
}

.page-lead,
.page-desc,
.page-intro,
.page-title-desc {
  font-size: 16px;
  color: var(--c-text);
  max-width: 860px;
}

.page-title-block,
.page-hero {
  margin-bottom: 20px;
}

.page-hero {
  padding-bottom: 16px;
  border-bottom: 1px solid var(--c-line);
}

/* 图片容器统一约束 */
.hero-visual,
.pick-cover,
.topic-cover,
.topic-media,
.genre-figure,
.media-figure,
.recommend-cover,
.explainer-figure,
.section-map-figure,
.editorial-media {
  position: relative;
  overflow: hidden;
  border-radius: var(--r-card);
  background-color: var(--c-brand-soft);
}

.hero-visual img,
.pick-cover img,
.topic-cover img,
.topic-media img,
.genre-figure img,
.media-figure img,
.recommend-cover img,
.explainer-figure img,
.section-map-figure img,
.editorial-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

figcaption {
  font-size: 13px;
  color: var(--c-muted);
  padding: 8px 10px 0;
}

/* 相关帮助区块 */
.related-help {
  margin: 40px 0 0;
  padding: 22px 24px;
  background-color: var(--c-card);
  border: 1px solid var(--c-line);
  border-radius: var(--r-card);
}

.related-help h2 {
  font-size: 18px;
  margin-bottom: 14px;
}

.related-links,
.related-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.related-links li,
.related-list li {
  min-width: 0;
}

.related-links a,
.related-list a {
  display: block;
  padding: 12px 14px;
  font-size: 14px;
  color: var(--c-ink);
  background-color: var(--c-bg);
  border: 1px solid var(--c-line);
  border-radius: var(--r-card);
}

.related-links a:hover,
.related-list a:hover {
  color: var(--c-brand);
  border-color: var(--c-brand);
  background-color: var(--c-brand-soft);
}

.related-link {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

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

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

/* FAQ 手风琴 */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.faq-item {
  background-color: var(--c-card);
  border: 1px solid var(--c-line);
  border-radius: var(--r-card);
  overflow: hidden;
}

.faq-item[open] {
  border-color: var(--c-brand);
}

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

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

.faq-question::after {
  content: "+";
  flex: 0 0 auto;
  font-size: 20px;
  font-weight: 400;
  line-height: 1;
  color: var(--c-brand);
}

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

.faq-answer {
  padding: 0 18px 16px;
  font-size: 15px;
  color: var(--c-text);
}

/* 编号流程节点（横向，带连接线） */
.flow-list,
.flow-steps {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 20px;
  counter-reset: flow;
}

.flow-node,
.flow-step {
  position: relative;
  padding: 18px 16px;
  background-color: var(--c-card);
  border: 1px solid var(--c-line);
  border-radius: var(--r-card);
}

.flow-node::before,
.flow-step::before {
  content: "";
  position: absolute;
  top: 34px;
  left: -20px;
  width: 20px;
  height: 1px;
  background-color: var(--c-line-strong);
}

.flow-node:first-child::before,
.flow-step:first-child::before {
  display: none;
}

.flow-no,
.flow-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  margin-bottom: 10px;
  font-size: 13px;
  font-weight: 700;
  color: #FFFFFF;
  background-color: var(--c-brand);
  border-radius: 6px;
}

.flow-title {
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 6px;
}

.flow-note,
.flow-text {
  font-size: 14px;
  color: var(--c-text);
}

/* 通用编号步骤列表（内页） */
.order-steps,
.rule-list,
.criteria-list,
.suggestion-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.order-step,
.rule-item,
.criteria-item,
.suggestion-item {
  padding: 16px 18px;
  background-color: var(--c-card);
  border: 1px solid var(--c-line);
  border-left: 3px solid var(--c-brand);
  border-radius: var(--r-card);
}

.order-step h3,
.rule-item h3,
.criteria-title,
.suggestion-title {
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 6px;
}

.order-step p,
.rule-item p,
.criteria-desc,
.suggestion-text {
  font-size: 15px;
  color: var(--c-text);
}

/* 更新行式列表（首页） */
.update-rows {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--c-line);
  border-radius: var(--r-card);
  background-color: var(--c-card);
  overflow: hidden;
}

.update-rows .update-row {
  display: grid;
  grid-template-columns: 92px minmax(0, 1fr) 92px 120px 72px;
  align-items: center;
  gap: 12px;
  padding: 12px 18px;
  border-bottom: 1px solid var(--c-line);
  font-size: 15px;
}

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

.update-rows .update-row:hover {
  background-color: var(--c-brand-soft);
}

.update-date {
  font-size: 14px;
  color: var(--c-muted);
}

.update-title {
  font-weight: 600;
  color: var(--c-ink);
}

.update-genre {
  font-size: 13px;
  color: var(--c-brand);
}

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

/* 榜单行 */
.rank-list {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--c-line);
  border-radius: var(--r-card);
  background-color: var(--c-card);
  overflow: hidden;
}

.rank-row {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr) 100px 72px;
  align-items: center;
  gap: 12px;
  padding: 13px 18px;
  border-bottom: 1px solid var(--c-line);
  font-size: 15px;
}

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

.rank-row:hover {
  background-color: var(--c-brand-soft);
}

.rank-no {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  font-size: 13px;
  font-weight: 700;
  color: var(--c-muted);
  background-color: var(--c-bg);
  border-radius: 6px;
}

.rank-row:nth-child(-n+3) .rank-no {
  color: #FFFFFF;
  background-color: var(--c-accent);
}

.rank-title {
  font-weight: 600;
  color: var(--c-ink);
}

.rank-genre {
  font-size: 13px;
  color: var(--c-brand);
}

/* --------------------------------------------------------------------------
   pages · 首页
   -------------------------------------------------------------------------- */

/* 首屏主视觉区 */
.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  gap: 32px;
  align-items: center;
  padding: 28px 0 32px;
  margin-bottom: 36px;
  border-bottom: 1px solid var(--c-line);
}

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

.hero-eyebrow {
  font-size: 13px;
  font-weight: 600;
  color: var(--c-accent);
  margin-bottom: 10px;
}

.hero h1 {
  font-size: 30px;
  font-weight: 700;
  line-height: 1.3;
  color: var(--c-ink);
  margin-bottom: 12px;
}

.hero-lead {
  font-size: 16px;
  color: var(--c-text);
  max-width: 620px;
  margin-bottom: 20px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 20px;
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.hero-visual {
  width: 300px;
  height: 210px;
  border: 1px solid var(--c-line);
}

.hero-visual figcaption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 8px 12px;
  font-size: 12px;
  color: #FFFFFF;
  background-color: rgba(16, 38, 43, 0.66);
}

/* 今日推荐 */
.pick-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.pick-card {
  display: flex;
  flex-direction: column;
  background-color: var(--c-card);
  border: 1px solid var(--c-line);
  border-radius: var(--r-card);
  overflow: hidden;
}

.pick-card:hover {
  border-color: var(--c-brand);
  box-shadow: var(--shadow-2);
}

.pick-index {
  display: inline-block;
  padding: 10px 14px 0;
  font-size: 13px;
  font-weight: 700;
  color: var(--c-accent);
}

.pick-cover {
  margin: 8px 14px 0;
  height: 150px;
  border-radius: 4px;
}

.pick-body {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 12px 14px 16px;
}

.pick-title {
  font-size: 17px;
  font-weight: 600;
}

.pick-tags {
  font-size: 13px;
  color: var(--c-brand);
}

.pick-note {
  font-size: 14px;
  color: var(--c-text);
}

/* 题材浏览 */
.genre-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.genre-block {
  padding: 16px 18px;
  background-color: var(--c-card);
  border: 1px solid var(--c-line);
  border-radius: var(--r-card);
  border-left: 3px solid var(--c-brand);
}

.genre-block:hover {
  border-left-color: var(--c-accent);
}

.genre-name {
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 6px;
}

.genre-note {
  font-size: 14px;
  color: var(--c-text);
  margin-bottom: 8px;
}

/* 专题策划 */
.topic-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.topic-card {
  display: flex;
  flex-direction: column;
  background-color: var(--c-card);
  border: 1px solid var(--c-line);
  border-radius: var(--r-card);
  overflow: hidden;
}

.topic-card:hover {
  border-color: var(--c-brand);
  box-shadow: var(--shadow-2);
}

.topic-cover {
  height: 148px;
  border-radius: 0;
}

.topic-body {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 14px 16px 16px;
}

.topic-name {
  font-size: 17px;
  font-weight: 600;
}

.topic-note {
  font-size: 14px;
  color: var(--c-text);
}

/* 摘要栏 */
.sidebar {
  display: flex;
  flex-direction: column;
  gap: 18px;
  position: sticky;
  top: calc(var(--header-h-compact) + 16px);
  align-self: start;
}

.side-block {
  padding: 18px;
  background-color: var(--c-card);
  border: 1px solid var(--c-line);
  border-radius: var(--r-card);
}

.side-title {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 12px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--c-line);
}

.side-links {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.side-links a {
  display: block;
  padding: 9px 10px;
  font-size: 14px;
  color: var(--c-text);
  border-radius: 4px;
}

.side-links a:hover {
  color: var(--c-brand);
  background-color: var(--c-brand-soft);
}

.side-points {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.side-points li {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  color: var(--c-text);
}

.side-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 11px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--c-accent);
}

.copy-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  min-height: 44px;
  margin-top: 12px;
  font-size: 14px;
  font-weight: 600;
  color: var(--c-brand);
  background-color: var(--c-brand-soft);
  border: 1px solid transparent;
  border-radius: 6px;
}

.copy-btn:hover {
  color: #FFFFFF;
  background-color: var(--c-brand);
}

.side-note {
  margin-top: 10px;
  font-size: 13px;
  color: var(--c-muted);
}

/* --------------------------------------------------------------------------
   pages · 今日推荐
   -------------------------------------------------------------------------- */

.summary-note {
  margin: 0 0 28px;
  padding: 18px 20px;
  background-color: var(--c-card);
  border: 1px solid var(--c-line);
  border-left: 3px solid var(--c-accent);
  border-radius: var(--r-card);
}

.summary-note h2 {
  font-size: 18px;
  margin-bottom: 8px;
}

.summary-note p {
  font-size: 15px;
  color: var(--c-text);
}

.recommend-list {
  margin-bottom: 36px;
}

.recommend-list > h2 {
  font-size: 22px;
  margin-bottom: 6px;
}

.recommend-items {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 16px;
}

.recommend-item {
  display: grid;
  grid-template-columns: 44px 132px minmax(0, 1fr);
  gap: 16px;
  align-items: start;
  padding: 16px;
  background-color: var(--c-card);
  border: 1px solid var(--c-line);
  border-radius: var(--r-card);
}

.recommend-item:hover {
  border-color: var(--c-brand);
}

.recommend-rank {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  font-size: 14px;
  font-weight: 700;
  color: #FFFFFF;
  background-color: var(--c-brand);
  border-radius: 6px;
}

.recommend-cover {
  width: 132px;
  height: 92px;
  border-radius: 4px;
}

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

.recommend-name {
  font-size: 17px;
  font-weight: 600;
}

.recommend-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

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

.recommend-meta {
  font-size: 14px;
  color: var(--c-muted);
}

.order-explainer {
  margin-bottom: 36px;
}

.order-explainer > h2 {
  font-size: 22px;
  margin-bottom: 6px;
}

.explainer-figure {
  height: 200px;
  margin: 16px 0;
  border: 1px solid var(--c-line);
}

.calendar-link-note {
  margin-bottom: 32px;
  padding: 18px 20px;
  background-color: var(--c-card);
  border: 1px solid var(--c-line);
  border-radius: var(--r-card);
}

.calendar-link-note h2 {
  font-size: 18px;
  margin-bottom: 8px;
}

.calendar-link-note p {
  font-size: 15px;
  color: var(--c-text);
}

.calendar-link-note p + p {
  margin-top: 8px;
}

/* --------------------------------------------------------------------------
   pages · 题材目录
   -------------------------------------------------------------------------- */

.genre-grid > h2,
.genre-grid > .section-lead {
  grid-column: 1 / -1;
}

.genre-grid > h2 {
  font-size: 22px;
}

.genre-grid > .section-lead {
  margin-top: 0;
  margin-bottom: 6px;
}

.genre-grid .genre-block {
  display: grid;
  grid-template-columns: 168px minmax(0, 1fr);
  gap: 16px;
  padding: 16px;
  border-left: 1px solid var(--c-line);
}

.genre-grid .genre-block:hover {
  border-color: var(--c-brand);
}

.genre-grid .genre-figure {
  width: 168px;
  height: 118px;
  border-radius: 4px;
}

.genre-grid .genre-figure figcaption {
  padding: 6px 8px 0;
  font-size: 12px;
}

.genre-body {
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-width: 0;
}

.genre-desc {
  font-size: 14px;
  color: var(--c-text);
}

.genre-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.genre-enter {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 14px;
  font-weight: 600;
  color: var(--c-brand);
}

.genre-enter::after {
  content: "→";
  font-size: 13px;
}

.genre-enter:hover {
  color: var(--c-accent);
}

.boundary-note {
  margin: 36px 0 0;
}

.boundary-note h2 {
  font-size: 22px;
  margin-bottom: 6px;
}

.boundary-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 16px;
}

.boundary-item {
  padding: 16px 18px;
  background-color: var(--c-card);
  border: 1px solid var(--c-line);
  border-radius: var(--r-card);
}

.boundary-name {
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 6px;
}

.boundary-item p {
  font-size: 15px;
  color: var(--c-text);
}

/* --------------------------------------------------------------------------
   pages · 更新日历
   -------------------------------------------------------------------------- */

.week-nodes {
  margin-bottom: 36px;
}

.week-nodes .genre-figure {
  height: 200px;
  margin-bottom: 20px;
  border: 1px solid var(--c-line);
}

.node-group {
  margin-bottom: 18px;
  background-color: var(--c-card);
  border: 1px solid var(--c-line);
  border-radius: var(--r-card);
  overflow: hidden;
}

.node-group-title {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 18px;
  font-size: 16px;
  font-weight: 700;
  background-color: var(--c-brand-soft);
  border-bottom: 1px solid var(--c-line);
}

.node-day {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 40px;
  height: 24px;
  padding: 0 8px;
  font-size: 12px;
  font-weight: 700;
  color: #FFFFFF;
  background-color: var(--c-brand);
  border-radius: 4px;
}

.update-list {
  display: flex;
  flex-direction: column;
}

.update-list .update-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 96px 128px 72px;
  align-items: center;
  gap: 12px;
  padding: 12px 18px;
  border-bottom: 1px solid var(--c-line);
  font-size: 15px;
}

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

.update-list .update-row:hover {
  background-color: var(--c-bg);
}

.update-work {
  font-weight: 600;
  color: var(--c-ink);
}

.update-list .update-state {
  font-size: 13px;
  color: var(--c-muted);
}

.row-link {
  font-size: 14px;
  font-weight: 600;
  color: var(--c-brand);
}

.row-link:hover {
  color: var(--c-accent);
}

.update-rules,
.topic-timing {
  margin-bottom: 36px;
}

.update-rules h2,
.topic-timing h2 {
  font-size: 22px;
}

.timing-note {
  padding: 18px 20px;
  background-color: var(--c-card);
  border: 1px solid var(--c-line);
  border-radius: var(--r-card);
}

.timing-note p {
  font-size: 15px;
  color: var(--c-text);
}

.timing-note p + p {
  margin-top: 10px;
}

/* --------------------------------------------------------------------------
   pages · 专题策划
   -------------------------------------------------------------------------- */

.topic-list {
  margin-bottom: 36px;
}

.topic-list > h2 {
  font-size: 22px;
  margin-bottom: 6px;
}

.topic-list .topic-card {
  margin-top: 18px;
  display: grid;
  grid-template-columns: 300px minmax(0, 1fr);
  gap: 0;
}

.topic-media {
  height: 100%;
  min-height: 190px;
  border-radius: 0;
}

.topic-list .topic-body {
  padding: 20px 22px;
}

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

.topic-order {
  font-size: 14px;
  color: var(--c-muted);
}

.topic-order-label {
  font-weight: 600;
  color: var(--c-brand);
  margin-right: 6px;
}

.topic-enter {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  margin-top: 4px;
  font-size: 14px;
  font-weight: 600;
  color: var(--c-brand);
}

.topic-enter::after {
  content: "→";
  font-size: 13px;
}

.topic-enter:hover {
  color: var(--c-accent);
}

.topic-criteria,
.topic-genre-link {
  margin-bottom: 36px;
}

.topic-criteria h2,
.topic-genre-link h2 {
  font-size: 22px;
  margin-bottom: 6px;
}

.genre-link-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: 16px;
}

.genre-link-item {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 18px 20px;
  background-color: var(--c-card);
  border: 1px solid var(--c-line);
  border-radius: var(--r-card);
}

.genre-link-title {
  font-size: 17px;
  font-weight: 600;
}

.genre-link-desc {
  font-size: 15px;
  color: var(--c-text);
}

.genre-link-enter {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 14px;
  font-weight: 600;
  color: var(--c-brand);
}

.genre-link-enter::after {
  content: "→";
  font-size: 13px;
}

.genre-link-enter:hover {
  color: var(--c-accent);
}

/* --------------------------------------------------------------------------
   pages · 阅读帮助
   -------------------------------------------------------------------------- */

.section-map {
  margin-bottom: 40px;
}

.section-map-figure {
  height: 200px;
  margin: 16px 0 20px;
  border: 1px solid var(--c-line);
}

.section-suggestion,
.section-related {
  margin-bottom: 40px;
}

.suggestion-text a {
  font-weight: 600;
}

/* --------------------------------------------------------------------------
   pages · 编辑说明
   -------------------------------------------------------------------------- */

.scope-pair {
  margin-bottom: 36px;
}

.scope-pair h2 {
  font-size: 22px;
  margin-bottom: 6px;
}

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

.scope-col {
  padding: 18px 20px;
  background-color: var(--c-card);
  border: 1px solid var(--c-line);
  border-radius: var(--r-card);
}

.scope-col-include {
  border-top: 3px solid var(--c-brand);
}

.scope-col-exclude {
  border-top: 3px solid var(--c-accent);
}

.scope-col-title {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 12px;
}

.scope-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.scope-item h4 {
  font-size: 15px;
  font-weight: 600;
  color: var(--c-ink);
  margin-bottom: 4px;
}

.scope-item p {
  font-size: 14px;
  color: var(--c-text);
}

.naming-rules,
.revision-rules {
  margin-bottom: 36px;
}

.naming-rules h2,
.revision-rules h2 {
  font-size: 22px;
  margin-bottom: 6px;
}

.editorial-media {
  height: 200px;
  margin: 16px 0 20px;
  border: 1px solid var(--c-line);
}

/* --------------------------------------------------------------------------
   pages · 404
   -------------------------------------------------------------------------- */

.error-main {
  max-width: 760px;
  margin: 0 auto;
  padding: 56px 24px 64px;
}

.error-block {
  text-align: center;
  padding-bottom: 32px;
  border-bottom: 1px solid var(--c-line);
}

.error-code {
  font-size: 64px;
  font-weight: 700;
  line-height: 1;
  color: var(--c-brand-soft);
  margin-bottom: 8px;
}

.error-title {
  font-size: 26px;
  font-weight: 700;
  margin-bottom: 12px;
}

.error-text {
  font-size: 16px;
  color: var(--c-text);
  max-width: 520px;
  margin: 0 auto 22px;
}

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

.error-help {
  margin-top: 36px;
}

.section-title {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 14px;
}

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

.error-links a {
  display: block;
  padding: 14px 16px;
  font-size: 15px;
  color: var(--c-ink);
  background-color: var(--c-card);
  border: 1px solid var(--c-line);
  border-radius: var(--r-card);
}

.error-links a:hover {
  color: var(--c-brand);
  border-color: var(--c-brand);
  background-color: var(--c-brand-soft);
}

/* --------------------------------------------------------------------------
   responsive · 960px 断点
   -------------------------------------------------------------------------- */
@media (max-width: 960px) {
  .header-inner {
    gap: 16px;
  }

  /* 移动端：显示汉堡按钮，导航列表默认收起 */
  .nav-toggle {
    display: flex;
    margin-left: auto;
  }

  .site-nav {
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    display: block;
    background-color: var(--c-card);
    border-bottom: 1px solid var(--c-line);
    box-shadow: var(--shadow-2);
    padding: 8px 16px 16px;
  }

  .nav-list {
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
  }

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

  .nav-item > a {
    display: flex;
    align-items: center;
    min-height: 44px;
    padding: 10px 12px;
    font-size: 16px;
  }

  .nav-item.is-current > a::after,
  .nav-item > a.is-current::after {
    left: 12px;
    right: auto;
    bottom: 8px;
    width: 24px;
    height: 2px;
  }

  /* 首页两栏折叠为单列，摘要栏移到主内容之后 */
  .page-layout {
    grid-template-columns: minmax(0, 1fr);
    gap: 32px;
    padding: 24px 20px 44px;
  }

  .sidebar {
    position: static;
    top: auto;
  }

  .inner-main {
    padding: 20px 20px 44px;
  }

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

  .hero-visual {
    width: 100%;
    height: 220px;
  }

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

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

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

  .flow-node::before,
  .flow-step::before {
    display: none;
  }

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

  .footer-inner {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 24px;
    padding: 36px 20px 24px;
  }

  .footer-bottom {
    padding: 16px 20px 24px;
  }

  .update-rows .update-row {
    grid-template-columns: 84px minmax(0, 1fr) 72px;
  }

  .update-rows .update-genre,
  .update-rows .update-state {
    display: none;
  }

  .rank-row {
    grid-template-columns: 40px minmax(0, 1fr) 72px;
  }

  .rank-genre {
    display: none;
  }

  .recommend-item {
    grid-template-columns: 36px 120px minmax(0, 1fr);
    gap: 12px;
  }

  .recommend-cover {
    width: 120px;
    height: 84px;
  }

  .topic-list .topic-card {
    grid-template-columns: 240px minmax(0, 1fr);
  }

  .topic-media {
    min-height: 170px;
  }

  .update-list .update-row {
    grid-template-columns: minmax(0, 1fr) 88px 72px;
  }

  .update-list .update-state {
    display: none;
  }

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

/* --------------------------------------------------------------------------
   responsive · 640px 断点
   -------------------------------------------------------------------------- */
@media (max-width: 640px) {
  body {
    font-size: 15px;
  }

  .header-inner {
    padding: 0 16px;
    gap: 12px;
  }

  .brand-slogan {
    display: none;
  }

  .brand-name {
    font-size: 16px;
  }

  .page-layout {
    padding: 18px 16px 36px;
    gap: 26px;
  }

  .inner-main {
    padding: 16px 16px 36px;
  }

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

  .section h2,
  .section-head h2,
  .recommend-list > h2,
  .order-explainer > h2,
  .boundary-note h2,
  .topic-list > h2,
  .topic-criteria h2,
  .topic-genre-link h2,
  .update-rules h2,
  .topic-timing h2,
  .scope-pair h2,
  .naming-rules h2,
  .revision-rules h2 {
    font-size: 20px;
  }

  .hero {
    padding: 18px 0 24px;
    margin-bottom: 28px;
  }

  .hero-visual {
    height: 190px;
  }

  .hero-actions {
    gap: 10px;
  }

  .hero-actions .btn {
    flex: 1 1 140px;
  }

  .pick-list,
  .topic-grid,
  .flow-list,
  .flow-steps {
    grid-template-columns: minmax(0, 1fr);
  }

  .pick-cover {
    height: 168px;
  }

  .topic-cover {
    height: 160px;
  }

  .update-rows .update-row {
    grid-template-columns: minmax(0, 1fr) 64px;
    gap: 8px;
    padding: 11px 14px;
  }

  .update-rows .update-date {
    grid-column: 1 / -1;
    font-size: 13px;
  }

  .rank-row {
    padding: 12px 14px;
    gap: 8px;
  }

  .recommend-item {
    grid-template-columns: 32px minmax(0, 1fr);
    gap: 10px;
    padding: 14px;
  }

  .recommend-cover {
    grid-column: 1 / -1;
    width: 100%;
    height: 170px;
  }

  .recommend-rank {
    width: 28px;
    height: 28px;
  }

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

  .topic-media {
    min-height: 0;
    height: 180px;
  }

  .topic-list .topic-body {
    padding: 16px;
  }

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

  .genre-grid .genre-figure {
    width: 100%;
    height: 160px;
  }

  .update-list .update-row {
    grid-template-columns: minmax(0, 1fr) 64px;
    padding: 11px 14px;
  }

  .update-list .update-row .tag-pill {
    justify-self: start;
  }

  .explainer-figure,
  .section-map-figure,
  .editorial-media,
  .week-nodes .genre-figure {
    height: 170px;
  }

  .footer-inner {
    grid-template-columns: minmax(0, 1fr);
    gap: 20px;
    padding: 30px 16px 20px;
  }

  .footer-bottom {
    padding: 14px 16px 22px;
  }

  .error-main {
    padding: 36px 16px 48px;
  }

  .error-code {
    font-size: 52px;
  }

  .error-title {
    font-size: 22px;
  }

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

  .related-help {
    padding: 18px 16px;
  }
}

/* 系统偏好减少动态 */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    transition-duration: 0.001ms !important;
  }
}