/* =========================================================
   漫蛙漫画 ffjwa.cn 全站样式
   分组：base / layout / components / pages / responsive
   ========================================================= */

/* ---------------------------------------------------------
   base：变量、重置、字体与基础排版
   --------------------------------------------------------- */
:root {
  --c-primary: #1f2a5a;
  --c-primary-soft: #33417d;
  --c-accent: #e2572b;
  --c-accent-soft: #fbe7e0;
  --c-teal: #2f8f83;
  --c-teal-soft: #e2f2ef;
  --c-bg: #f4f5f8;
  --c-surface: #ffffff;
  --c-line: #dfe2ea;
  --c-line-strong: #c6cbd8;
  --c-text: #23262f;
  --c-text-sub: #6b7280;
  --c-text-mute: #8b90a0;
  --radius: 6px;
  --radius-sm: 4px;
  --shadow-card: 0 1px 2px rgba(31, 42, 90, 0.06);
  --shadow-hover: 0 6px 18px rgba(31, 42, 90, 0.14);
  --wrap: 1160px;
  --gap: 24px;
  --font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei",
    "Source Han Sans SC", "Noto Sans CJK SC", "WenQuanYi Micro Hei",
    system-ui, -apple-system, "Segoe UI", Arial, sans-serif;
  --font-num: "SFMono-Regular", "DIN Alternate", "Roboto Mono", Consolas,
    "Liberation Mono", monospace;
}

*,
*::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: var(--font-sans);
  font-size: 15px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

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

p {
  margin: 0;
}

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

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

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

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

figure {
  margin: 0;
}

button {
  font: inherit;
  color: inherit;
}

time,
.rank-no,
.ranking-rank,
.update-date {
  font-variant-numeric: tabular-nums;
}

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

/* ---------------------------------------------------------
   layout：全站骨架（事实条、页头、导航、主容器、面包屑、页脚）
   --------------------------------------------------------- */

/* 顶部事实条（仅首页） */
.fact-bar {
  background: var(--c-primary);
  color: #e8ebf5;
}

.fact-bar p {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 8px 24px;
  font-size: 13px;
  line-height: 1.6;
}

/* 页头 */
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: var(--c-surface);
  border-bottom: 1px solid var(--c-line);
}

.header-inner {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 24px;
  min-height: 68px;
  display: flex;
  align-items: center;
  gap: 24px;
}

.brand {
  display: flex;
  flex-direction: column;
  justify-content: center;
  flex: 0 0 auto;
  padding: 10px 0;
  color: var(--c-primary);
}

.brand-name {
  font-size: 20px;
  font-weight: 700;
  line-height: 1.25;
}

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

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

/* 主导航 */
.site-nav {
  margin-left: auto;
}

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

.nav-list li {
  display: flex;
}

.nav-list a {
  display: block;
  padding: 10px 14px;
  font-size: 15px;
  color: var(--c-text);
  border-radius: var(--radius-sm);
  border-bottom: 2px solid transparent;
}

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

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

/* 汉堡按钮：桌面隐藏 */
.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  margin-left: auto;
  padding: 0;
  background: var(--c-surface);
  border: 1px solid var(--c-line-strong);
  border-radius: var(--radius-sm);
  cursor: pointer;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
}

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

/* 主容器 */
.site-main {
  display: block;
}

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

/* 面包屑 */
.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  padding: 18px 0 0;
  font-size: 13px;
  color: var(--c-text-sub);
}

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

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

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

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

/* 页标题区 */
.page-header {
  padding: 18px 0 22px;
  border-bottom: 1px solid var(--c-line);
  margin-bottom: 32px;
}

.page-title {
  font-size: 32px;
  font-weight: 700;
  color: var(--c-primary);
}

.page-description {
  margin-top: 10px;
  max-width: 820px;
  font-size: 15px;
  color: var(--c-text-sub);
}

/* 页脚 */
.site-footer {
  background: var(--c-primary);
  color: #c9cee0;
  margin-top: 40px;
}

.footer-inner {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 40px 24px 28px;
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr;
  gap: 32px;
}

.footer-brand-name {
  font-size: 18px;
  font-weight: 700;
  color: #ffffff;
}

.footer-brand-text {
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.8;
  color: #a8b0c8;
}

.footer-title {
  margin-bottom: 12px;
  font-size: 14px;
  font-weight: 700;
  color: #ffffff;
}

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

.footer-list a {
  font-size: 14px;
  color: #c9cee0;
}

.footer-list a:hover {
  color: #ffffff;
}

.footer-bottom {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 16px 24px 28px;
  border-top: 1px solid rgba(255, 255, 255, 0.14);
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
  justify-content: space-between;
  font-size: 12.5px;
  color: #9aa2bd;
}

.footer-copy {
  color: #9aa2bd;
}

/* ---------------------------------------------------------
   components：按钮、标签、卡片、列表、折叠问答等通用件
   --------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 22px;
  font-size: 15px;
  font-weight: 700;
  border-radius: var(--radius);
  border: 1px solid transparent;
  cursor: pointer;
  transition: background 0.18s ease, color 0.18s ease, border-color 0.18s ease;
}

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

.btn-primary:hover {
  background: #c9481f;
  color: #ffffff;
}

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

.btn-ghost:hover {
  color: var(--c-primary);
  border-color: var(--c-primary);
  background: #eef0f7;
}

/* 题材标签 */
.genre-tag {
  display: inline-block;
  padding: 2px 9px;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--c-teal);
  background: var(--c-teal-soft);
  border-radius: var(--radius-sm);
  white-space: nowrap;
}

a.genre-tag:hover {
  color: #ffffff;
  background: var(--c-teal);
}

/* 小标题 */
.sub-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--c-primary);
  padding-bottom: 8px;
  border-bottom: 2px solid var(--c-line);
}

/* 栏目区块通用 */
.section {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 40px 24px 0;
}

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

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

.section-head p {
  margin-top: 6px;
  font-size: 14px;
  color: var(--c-text-sub);
}

.section-title {
  font-size: 22px;
  font-weight: 700;
  color: var(--c-primary);
}

.section-intro {
  margin-top: 8px;
  font-size: 14px;
  color: var(--c-text-sub);
}

.section-note {
  margin-top: 8px;
  font-size: 14px;
  color: var(--c-text-sub);
}

.section-desc {
  margin-top: 6px;
  font-size: 14px;
  color: var(--c-text-sub);
}

.section-more {
  margin-top: 18px;
  font-size: 14px;
}

.section-more a {
  display: inline-block;
  padding: 6px 0;
  font-weight: 700;
  color: var(--c-accent);
}

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

/* 封面图容器统一约束 */
.hero-figure img,
.topic-figure img,
.topic-cover img,
.work-cover img,
.update-thumb img,
.ranking-cover img,
.aside-figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: var(--radius-sm);
}

/* 站内栏目索引（首页六列 / 阅读说明页列表） */
.column-index {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 12px;
}

.column-item {
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  padding: 14px 14px 16px;
  box-shadow: var(--shadow-card);
  transition: border-color 0.18s ease, box-shadow 0.18s ease;
}

.column-item:hover {
  border-color: var(--c-primary-soft);
  box-shadow: var(--shadow-hover);
}

.column-item a {
  display: block;
  font-size: 15px;
  font-weight: 700;
  color: var(--c-primary);
}

.column-desc {
  display: block;
  margin-top: 6px;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--c-text-sub);
}

/* 折叠问答 */
.faq-list {
  margin-top: 16px;
  border-top: 1px solid var(--c-line);
}

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

.faq-question {
  position: relative;
  padding: 14px 40px 14px 0;
  font-size: 15px;
  font-weight: 700;
  color: var(--c-primary);
  cursor: pointer;
  list-style: none;
}

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

.faq-question::after {
  content: "+";
  position: absolute;
  right: 6px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 18px;
  font-weight: 700;
  color: var(--c-accent);
}

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

.faq-answer {
  padding: 0 8px 16px 0;
  font-size: 14.5px;
  color: var(--c-text-sub);
}

/* ---------------------------------------------------------
   pages：首页
   --------------------------------------------------------- */

/* 首屏 */
.hero-section {
  background: var(--c-surface);
  border-bottom: 1px solid var(--c-line);
}

.hero-inner {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 40px 24px 44px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
  gap: 40px;
  align-items: start;
}

.hero-kicker {
  display: inline-block;
  padding: 3px 10px;
  font-size: 12.5px;
  color: var(--c-accent);
  background: var(--c-accent-soft);
  border-radius: var(--radius-sm);
}

.hero-title {
  margin-top: 14px;
  font-size: 32px;
  font-weight: 700;
  color: var(--c-primary);
}

.hero-text {
  margin-top: 14px;
  max-width: 520px;
  font-size: 15px;
  color: var(--c-text-sub);
}

.hero-actions {
  margin-top: 24px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

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

.hero-figure {
  position: relative;
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--c-bg);
}

.hero-figure img {
  width: 100%;
  aspect-ratio: 16 / 9;
  height: auto;
  border-radius: 0;
}

.hero-figure figcaption {
  padding: 10px 14px;
  font-size: 12.5px;
  color: var(--c-text-sub);
  background: var(--c-surface);
  border-top: 1px solid var(--c-line);
}

.tag-row {
  margin-top: 16px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tag-row .genre-tag {
  padding: 5px 12px;
  font-size: 13px;
}

/* 今日推荐与题材入口 */
.today-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr);
  gap: 32px;
  align-items: start;
}

.pick-list {
  margin-top: 14px;
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  background: var(--c-surface);
  overflow: hidden;
}

.pick-item + .pick-item {
  border-top: 1px solid var(--c-line);
}

.pick-link {
  display: block;
  padding: 14px 16px;
  transition: background 0.18s ease;
}

.pick-link:hover {
  background: #f7f8fb;
}

.pick-name {
  font-size: 16px;
  font-weight: 700;
  color: var(--c-primary);
}

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

.pick-meta {
  margin-top: 6px;
  font-size: 13.5px;
  color: var(--c-text-sub);
}

.pick-status {
  display: inline-block;
  margin-left: 10px;
  padding: 1px 8px;
  font-size: 12px;
  color: var(--c-accent);
  background: var(--c-accent-soft);
  border-radius: var(--radius-sm);
}

.genre-entry-list {
  margin-top: 14px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.genre-entry {
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  transition: border-color 0.18s ease, box-shadow 0.18s ease;
}

.genre-entry:hover {
  border-color: var(--c-teal);
  box-shadow: var(--shadow-hover);
}

.genre-entry a {
  display: block;
  padding: 12px 14px;
}

.genre-entry-name {
  font-size: 15px;
  font-weight: 700;
  color: var(--c-primary);
}

.genre-entry:hover .genre-entry-name {
  color: var(--c-teal);
}

.genre-entry-desc {
  margin-top: 4px;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--c-text-sub);
}

.genre-note {
  margin-top: 14px;
  font-size: 13.5px;
  color: var(--c-text-sub);
}

.genre-note a {
  font-weight: 700;
  color: var(--c-accent);
}

/* 最近更新记录表 */
.update-list {
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  background: var(--c-surface);
  overflow: hidden;
}

.update-row {
  display: grid;
  grid-template-columns: 104px minmax(0, 1.1fr) 96px minmax(0, 1.4fr);
  gap: 16px;
  align-items: center;
  padding: 13px 18px;
  font-size: 14px;
}

.update-row + .update-row {
  border-top: 1px solid var(--c-line);
}

.update-row:hover {
  background: #f7f8fb;
}

.update-date {
  font-family: var(--font-num);
  font-size: 13.5px;
  color: var(--c-text-mute);
}

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

.update-note {
  font-size: 13.5px;
  color: var(--c-text-sub);
}

/* 人气榜单 */
.ranking-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
  gap: 32px;
  align-items: start;
}

.ranking-list {
  margin-top: 14px;
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  background: var(--c-surface);
  overflow: hidden;
}

.ranking-item {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr) 86px minmax(0, 1.3fr);
  gap: 14px;
  align-items: center;
  padding: 12px 18px;
  font-size: 14px;
}

.ranking-item + .ranking-item {
  border-top: 1px solid var(--c-line);
}

.ranking-item:hover {
  background: #f7f8fb;
}

.rank-no {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  font-family: var(--font-num);
  font-size: 13px;
  font-weight: 700;
  color: var(--c-primary);
  background: var(--c-bg);
  border-radius: var(--radius-sm);
}

.rank-no.rank-top {
  color: #ffffff;
  background: var(--c-accent);
}

.rank-name {
  font-size: 15.5px;
  font-weight: 700;
  color: var(--c-primary);
}

.rank-reason {
  font-size: 13.5px;
  color: var(--c-text-sub);
}

.ranking-aside {
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  padding: 20px 20px 22px;
  box-shadow: var(--shadow-card);
}

.ranking-aside p {
  margin-top: 12px;
  font-size: 14px;
  color: var(--c-text-sub);
}

.ranking-aside .sub-title {
  font-size: 16px;
}

/* 专题入口 */
.topic-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.topic-card {
  display: flex;
  flex-direction: column;
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: border-color 0.18s ease, box-shadow 0.18s ease;
}

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

.topic-figure {
  background: var(--c-bg);
  border-bottom: 1px solid var(--c-line);
}

.topic-figure img {
  width: 100%;
  aspect-ratio: 16 / 9;
  height: auto;
  border-radius: 0;
}

.topic-name {
  padding: 14px 16px 0;
  font-size: 17px;
  font-weight: 700;
  color: var(--c-primary);
}

.topic-desc {
  padding: 8px 16px 0;
  font-size: 13.5px;
  color: var(--c-text-sub);
}

.topic-count {
  padding: 10px 16px 0;
  font-size: 12.5px;
  color: var(--c-text-mute);
}

.topic-link {
  margin: 14px 16px 16px;
  padding-top: 12px;
  border-top: 1px solid var(--c-line);
  font-size: 14px;
  font-weight: 700;
  color: var(--c-accent);
}

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

/* 阅读方式与内容反馈 */
.guide-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 32px;
  align-items: start;
}

.guide-col {
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  padding: 20px 22px 22px;
  box-shadow: var(--shadow-card);
}

.guide-col p {
  margin-top: 12px;
  font-size: 14px;
  color: var(--c-text-sub);
}

.guide-list {
  margin-top: 14px;
}

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

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

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

/* 首页栏目索引区 */
.index-section .column-index {
  margin-top: 4px;
}

/* ---------------------------------------------------------
   pages：内页 —— 题材分类
   --------------------------------------------------------- */
.genres-overview {
  margin-bottom: 36px;
}

.genre-tag-bar {
  margin-top: 16px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.genre-tag-item {
  display: flex;
}

.genre-tag-item .genre-tag {
  padding: 7px 16px;
  font-size: 14px;
  border: 1px solid var(--c-teal-soft);
}

.genre-groups {
  display: flex;
  flex-direction: column;
  gap: 40px;
}

.genre-group {
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  padding: 22px 22px 24px;
  box-shadow: var(--shadow-card);
}

.genre-group-head {
  padding-bottom: 14px;
  margin-bottom: 18px;
  border-bottom: 1px solid var(--c-line);
}

.genre-name {
  font-size: 19px;
  font-weight: 700;
  color: var(--c-primary);
}

.genre-desc {
  margin-top: 6px;
  font-size: 14px;
  color: var(--c-text-sub);
}

.work-card-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.work-card {
  display: flex;
  flex-direction: column;
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color 0.18s ease, box-shadow 0.18s ease;
}

.work-card:hover {
  border-color: var(--c-primary-soft);
  box-shadow: var(--shadow-hover);
}

.work-cover {
  background: var(--c-bg);
  border-bottom: 1px solid var(--c-line);
}

.work-cover img {
  width: 100%;
  aspect-ratio: 3 / 4;
  height: auto;
  border-radius: 0;
}

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

.work-name {
  font-size: 15px;
  font-weight: 700;
  color: var(--c-primary);
}

.work-card:hover .work-name {
  color: var(--c-accent);
}

.work-tag {
  font-size: 12.5px;
  color: var(--c-teal);
}

.work-state {
  font-size: 12.5px;
  color: var(--c-text-mute);
}

.work-state-new {
  color: var(--c-accent);
  font-weight: 700;
}

/* 题材选择建议 */
.genre-tips {
  margin-top: 40px;
}

.genre-tips-layout {
  margin-top: 18px;
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
  gap: 32px;
  align-items: start;
}

.genre-tips-main p {
  font-size: 14.5px;
  color: var(--c-text-sub);
}

.genre-tips-main p + p {
  margin-top: 12px;
}

.genre-tips-side {
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  padding: 18px 20px 20px;
  box-shadow: var(--shadow-card);
}

.side-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--c-primary);
  padding-bottom: 8px;
  border-bottom: 2px solid var(--c-line);
}

.side-link-list {
  margin-top: 12px;
}

.side-link-list li + li {
  margin-top: 10px;
}

.side-link-list a {
  display: block;
  font-size: 14px;
  color: var(--c-primary);
}

.side-link-list a:hover {
  color: var(--c-accent);
}

/* ---------------------------------------------------------
   pages：内页 —— 最近更新
   --------------------------------------------------------- */
.updates-list-section .update-list {
  margin-top: 4px;
}

.updates-list-section .update-row {
  grid-template-columns: 92px minmax(0, 1fr);
  gap: 16px;
  align-items: start;
  padding: 16px 18px;
}

.updates-list-section .update-thumb {
  background: var(--c-bg);
  border: 1px solid var(--c-line);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.updates-list-section .update-thumb img {
  width: 100%;
  aspect-ratio: 3 / 4;
  height: auto;
  border-radius: 0;
}

.update-info {
  min-width: 0;
}

.update-info .update-date {
  font-size: 13px;
  color: var(--c-text-mute);
}

.update-info .update-name {
  margin-top: 4px;
  font-size: 16px;
  font-weight: 700;
  color: var(--c-primary);
}

.update-info .update-name a {
  color: inherit;
}

.update-info .update-name a:hover {
  color: var(--c-accent);
}

.update-meta {
  margin-top: 8px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  font-size: 13px;
}

.tag {
  display: inline-block;
  padding: 2px 9px;
  font-size: 12.5px;
  border-radius: var(--radius-sm);
}

.tag-genre {
  color: var(--c-teal);
  background: var(--c-teal-soft);
}

.update-status {
  color: var(--c-accent);
  font-weight: 700;
}

.update-info .update-note {
  margin-top: 8px;
  font-size: 13.5px;
  color: var(--c-text-sub);
}

/* 更新节奏说明 */
.updates-note-section {
  margin-top: 40px;
}

.note-body {
  margin-top: 16px;
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  border-left: 3px solid var(--c-teal);
  border-radius: var(--radius);
  padding: 20px 22px;
}

.note-body p {
  font-size: 14.5px;
  color: var(--c-text-sub);
}

.note-body p + p {
  margin-top: 12px;
}

/* 关联入口 */
.updates-links-section {
  margin-top: 40px;
}

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

.link-card {
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  padding: 20px 22px;
  box-shadow: var(--shadow-card);
  transition: border-color 0.18s ease, box-shadow 0.18s ease;
}

.link-card:hover {
  border-color: var(--c-primary-soft);
  box-shadow: var(--shadow-hover);
}

.link-card-title {
  font-size: 17px;
  font-weight: 700;
}

.link-card-title a {
  color: var(--c-primary);
}

.link-card-title a:hover {
  color: var(--c-accent);
}

.link-card-text {
  margin-top: 8px;
  font-size: 14px;
  color: var(--c-text-sub);
}

/* ---------------------------------------------------------
   pages：内页 —— 人气榜单
   --------------------------------------------------------- */
.ranking-list-section .ranking-list {
  margin-top: 4px;
}

.ranking-list-section .ranking-item {
  grid-template-columns: 84px 48px minmax(0, 1fr);
  grid-template-areas:
    "cover rank body";
  gap: 16px;
  align-items: start;
  padding: 16px 18px;
}

.ranking-cover {
  grid-area: cover;
  background: var(--c-bg);
  border: 1px solid var(--c-line);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.ranking-cover img {
  width: 100%;
  aspect-ratio: 3 / 4;
  height: auto;
  border-radius: 0;
}

.ranking-body {
  grid-area: body;
  min-width: 0;
}

.ranking-rank {
  grid-area: rank;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  font-family: var(--font-num);
  font-size: 14px;
  font-weight: 700;
  color: #ffffff;
  background: var(--c-primary);
  border-radius: var(--radius-sm);
}

.ranking-name {
  display: inline-block;
  margin-right: 10px;
  font-size: 17px;
  font-weight: 700;
  color: var(--c-primary);
  vertical-align: middle;
}

.ranking-body .genre-tag {
  vertical-align: middle;
}

.ranking-reason {
  margin-top: 8px;
  font-size: 14px;
  color: var(--c-text-sub);
}

/* 排序依据 */
.ranking-basis-section {
  margin-top: 40px;
}

.basis-grid {
  margin-top: 16px;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.basis-item {
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  border-top: 3px solid var(--c-accent);
  border-radius: var(--radius);
  padding: 18px 18px 20px;
  box-shadow: var(--shadow-card);
}

.basis-title {
  font-size: 15.5px;
  font-weight: 700;
  color: var(--c-primary);
}

.basis-item p {
  margin-top: 8px;
  font-size: 13.5px;
  color: var(--c-text-sub);
}

/* 对照入口 */
.ranking-cross-section {
  margin-top: 40px;
}

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

.cross-item {
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  padding: 20px 22px;
  box-shadow: var(--shadow-card);
}

.cross-title {
  font-size: 17px;
  font-weight: 700;
  color: var(--c-primary);
}

.cross-item p {
  margin-top: 8px;
  font-size: 14px;
  color: var(--c-text-sub);
}

.cross-link {
  display: inline-block;
  margin-top: 12px;
  font-size: 14px;
  font-weight: 700;
  color: var(--c-accent);
}

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

/* ---------------------------------------------------------
   pages：内页 —— 专题
   --------------------------------------------------------- */
.topic-list .section-head {
  margin-bottom: 24px;
}

.topic-block {
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  padding: 22px;
  box-shadow: var(--shadow-card);
}

.topic-block + .topic-block {
  margin-top: 28px;
}

.topic-block-head {
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr);
  gap: 22px;
  align-items: start;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--c-line);
}

.topic-cover {
  background: var(--c-bg);
  border: 1px solid var(--c-line);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.topic-cover img {
  width: 100%;
  aspect-ratio: 16 / 10;
  height: auto;
  border-radius: 0;
}

.topic-intro {
  min-width: 0;
}

.topic-intro .topic-name {
  padding: 0;
  font-size: 20px;
  font-weight: 700;
  color: var(--c-primary);
}

.topic-intro .topic-desc {
  padding: 8px 0 0;
  font-size: 14.5px;
  color: var(--c-text-sub);
}

.topic-meta {
  margin-top: 14px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.topic-meta li {
  padding: 3px 10px;
  font-size: 12.5px;
  color: var(--c-primary);
  background: var(--c-bg);
  border: 1px solid var(--c-line);
  border-radius: var(--radius-sm);
}

.topic-works {
  padding-top: 18px;
}

.topic-works-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--c-primary);
}

.work-grid {
  margin-top: 14px;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.work-grid .work-card {
  background: var(--c-surface);
}

.work-link {
  display: flex;
  flex-direction: column;
  color: inherit;
}

.work-grid .work-cover img {
  aspect-ratio: 3 / 4;
}

.work-grid .work-name {
  padding: 10px 12px 0;
  font-size: 14.5px;
  font-weight: 700;
  color: var(--c-primary);
}

.work-grid .work-card:hover .work-name {
  color: var(--c-accent);
}

.work-grid .genre-tag {
  margin: 6px 12px 12px;
  align-self: flex-start;
}

/* 专题延伸入口 */
.topic-more {
  margin-top: 40px;
}

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

.entry-col {
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  padding: 20px 22px;
  box-shadow: var(--shadow-card);
}

.entry-title {
  font-size: 17px;
  font-weight: 700;
  color: var(--c-primary);
}

.entry-text {
  margin-top: 8px;
  font-size: 14px;
  color: var(--c-text-sub);
}

.entry-link {
  display: inline-block;
  margin-top: 12px;
  font-size: 14px;
  font-weight: 700;
  color: var(--c-accent);
}

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

/* 专题说明三栏 */
.topic-notes {
  margin-top: 40px;
}

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

.notes-col {
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  border-left: 3px solid var(--c-teal);
  border-radius: var(--radius);
  padding: 18px 20px;
}

.notes-title {
  font-size: 15.5px;
  font-weight: 700;
  color: var(--c-primary);
}

.notes-text {
  margin-top: 8px;
  font-size: 13.5px;
  color: var(--c-text-sub);
}

/* ---------------------------------------------------------
   pages：内页 —— 阅读说明
   --------------------------------------------------------- */
.guide-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 280px;
  gap: 36px;
  align-items: start;
}

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

.guide-section + .guide-section {
  margin-top: 36px;
}

.guide-section .section-title {
  padding-bottom: 10px;
  border-bottom: 2px solid var(--c-line);
  margin-bottom: 14px;
}

.guide-text {
  font-size: 14.5px;
  color: var(--c-text-sub);
}

.guide-text + .guide-text {
  margin-top: 12px;
}

.guide-aside {
  position: sticky;
  top: 88px;
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  padding: 18px 20px 20px;
  box-shadow: var(--shadow-card);
}

.aside-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--c-primary);
  padding-bottom: 8px;
  border-bottom: 2px solid var(--c-line);
}

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

.aside-item + .aside-item {
  margin-top: 8px;
}

.aside-item a {
  display: block;
  padding: 4px 0;
  font-size: 14px;
  color: var(--c-primary);
}

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

.aside-figure {
  margin-top: 16px;
  background: var(--c-bg);
  border: 1px solid var(--c-line);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.aside-figure img {
  width: 100%;
  aspect-ratio: 4 / 3;
  height: auto;
  border-radius: 0;
}

.aside-figure figcaption {
  padding: 8px 10px;
  font-size: 12px;
  color: var(--c-text-mute);
  background: var(--c-surface);
  border-top: 1px solid var(--c-line);
}

.guide-layout .column-index {
  margin-top: 40px;
}

.column-index-list {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 12px;
}

.column-index-item {
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  transition: border-color 0.18s ease, box-shadow 0.18s ease;
}

.column-index-item:hover {
  border-color: var(--c-primary-soft);
  box-shadow: var(--shadow-hover);
}

.column-index-item a {
  display: block;
  padding: 14px 12px;
  font-size: 14px;
  font-weight: 700;
  text-align: center;
  color: var(--c-primary);
}

.column-index-item a:hover {
  color: var(--c-accent);
}

/* ---------------------------------------------------------
   pages：404
   --------------------------------------------------------- */
.error-main {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 56px 24px 64px;
}

.error-panel {
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  padding: 40px 36px;
  box-shadow: var(--shadow-card);
}

.error-code {
  font-family: var(--font-num);
  font-size: 56px;
  font-weight: 700;
  line-height: 1;
  color: var(--c-accent);
}

.error-title {
  margin-top: 14px;
  font-size: 32px;
  font-weight: 700;
  color: var(--c-primary);
}

.error-text {
  margin-top: 12px;
  max-width: 620px;
  font-size: 15px;
  color: var(--c-text-sub);
}

.error-actions {
  margin-top: 24px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.error-links {
  margin-top: 32px;
}

.error-links-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--c-primary);
}

.error-link-list {
  margin-top: 14px;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.error-link-list li {
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  transition: border-color 0.18s ease, box-shadow 0.18s ease;
}

.error-link-list li:hover {
  border-color: var(--c-primary-soft);
  box-shadow: var(--shadow-hover);
}

.error-link-list a {
  display: block;
  padding: 14px 12px;
  font-size: 14px;
  font-weight: 700;
  text-align: center;
  color: var(--c-primary);
}

.error-link-list a:hover {
  color: var(--c-accent);
}

/* ---------------------------------------------------------
   responsive：平板与手机
   --------------------------------------------------------- */
@media (max-width: 1024px) {
  .hero-inner {
    grid-template-columns: minmax(0, 1fr);
    gap: 28px;
  }

  .today-grid,
  .ranking-grid,
  .genre-tips-layout {
    grid-template-columns: minmax(0, 1fr);
    gap: 28px;
  }

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

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

  .column-index,
  .column-index-list,
  .error-link-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .footer-inner {
    grid-template-columns: 1fr 1fr;
    gap: 28px;
  }

  .guide-layout {
    grid-template-columns: minmax(0, 1fr) 240px;
    gap: 28px;
  }
}

@media (max-width: 768px) {
  body {
    font-size: 15px;
  }

  .fact-bar p {
    padding: 8px 16px;
  }

  .header-inner {
    padding: 0 16px;
    min-height: 60px;
    gap: 12px;
    flex-wrap: wrap;
  }

  .brand-name {
    font-size: 18px;
  }

  .brand-slogan {
    font-size: 11.5px;
  }

  /* 手机端：显示汉堡按钮，导航列表默认收起 */
  .nav-toggle {
    display: flex;
  }

  .site-nav {
    flex: 0 0 100%;
    margin-left: 0;
  }

  .nav-list {
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 6px 0 12px;
    border-top: 1px solid var(--c-line);
  }

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

  .nav-list li {
    display: block;
  }

  .nav-list a {
    padding: 12px 8px;
    min-height: 44px;
    font-size: 15px;
    border-bottom: 1px solid var(--c-line);
    border-radius: 0;
  }

  .nav-list a.is-current {
    border-bottom-color: var(--c-line);
    border-left: 3px solid var(--c-accent);
    padding-left: 12px;
  }

  .inner-main {
    padding: 0 16px 44px;
  }

  .breadcrumb {
    padding-top: 14px;
  }

  .page-header {
    padding: 14px 0 18px;
    margin-bottom: 24px;
  }

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

  .page-description {
    font-size: 14px;
  }

  .section {
    padding: 32px 16px 0;
  }

  .section-head h2,
  .section-title {
    font-size: 19px;
  }

  /* 首屏：标题与标签在前，封面墙在后 */
  .hero-inner {
    padding: 28px 16px 32px;
    gap: 24px;
  }

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

  .hero-text {
    font-size: 14.5px;
  }

  .hero-actions {
    gap: 10px;
  }

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

  /* 今日推荐 */
  .genre-entry-list {
    grid-template-columns: minmax(0, 1fr);
  }

  /* 更新记录：改为纵向信息块 */
  .update-row,
  .updates-list-section .update-row {
    grid-template-columns: minmax(0, 1fr);
    gap: 6px;
    padding: 14px 16px;
  }

  .updates-list-section .update-thumb {
    max-width: 92px;
  }

  /* 榜单 */
  .ranking-item,
  .ranking-list-section .ranking-item {
    grid-template-columns: 72px minmax(0, 1fr);
    grid-template-areas:
      "cover rank"
      "cover body";
    gap: 10px 14px;
    padding: 14px 16px;
  }

  .ranking-list-section .ranking-name {
    font-size: 15.5px;
  }

  .ranking-aside {
    padding: 18px;
  }

  /* 专题 */
  .topic-grid,
  .basis-grid,
  .notes-columns,
  .link-columns,
  .cross-grid,
  .entry-columns,
  .guide-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .topic-block {
    padding: 18px;
  }

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

  .topic-cover {
    max-width: 320px;
  }

  .work-card-grid,
  .work-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
  }

  .column-index,
  .column-index-list,
  .error-link-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  /* 阅读说明：摘要栏回到正文开头 */
  .guide-layout {
    grid-template-columns: minmax(0, 1fr);
    gap: 24px;
  }

  .guide-aside {
    position: static;
    top: auto;
    order: -1;
  }

  .guide-section + .guide-section {
    margin-top: 28px;
  }

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

  .error-panel {
    padding: 28px 20px;
  }

  .error-code {
    font-size: 44px;
  }

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

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

  .footer-inner {
    grid-template-columns: minmax(0, 1fr);
    gap: 24px;
    padding: 32px 16px 22px;
  }

  .footer-bottom {
    padding: 14px 16px 24px;
    flex-direction: column;
    gap: 6px;
  }
}

@media (max-width: 390px) {
  .work-card-grid,
  .work-grid,
  .column-index,
  .column-index-list,
  .error-link-list {
    grid-template-columns: minmax(0, 1fr);
  }

  .hero-actions .btn,
  .error-actions .btn {
    flex: 1 1 100%;
  }

  .ranking-item,
  .ranking-list-section .ranking-item {
    grid-template-columns: 64px minmax(0, 1fr);
  }
}

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

  * {
    transition-duration: 0.01ms !important;
  }
}