/* =========================================================
   漫蛙漫画 · 全站样式表
   目录：
   01. base —— 变量、重置、基础排版
   02. layout —— 容器、页头、页脚、主布局
   03. components —— 通用组件（面包屑、侧栏、按钮等）
   04. pages —— 各页面专属模块
   05. responsive —— 响应式断点
   ========================================================= */

/* =========================================================
   01. base
   ========================================================= */

:root {
  --color-white: #FFFFFF;
  --color-ink: #1A1A2E;
  --color-accent: #E94560;
  --color-navy: #16213E;
  --color-bg-light: #F5F5F5;
  --color-text-body: #33334A;
  --color-text-muted: #6B6B80;
  --color-border: #E0E0EA;
  --color-card-bg: #FFFFFF;
  --radius-sm: 4px;
  --radius-md: 8px;
  --shadow-card: 0 2px 8px rgba(26, 26, 46, 0.06);
  --shadow-hover: 0 6px 20px rgba(26, 26, 46, 0.1);
  --font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
  --container-width: 1200px;
  --header-height: 68px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-family);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text-body);
  background-color: var(--color-white);
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: var(--color-navy);
  text-decoration: none;
  transition: color 0.2s ease;
}

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

ul,
ol {
  list-style: none;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  color: var(--color-ink);
  font-weight: 700;
  line-height: 1.3;
}

h1 {
  font-size: 2rem;
}

h2 {
  font-size: 1.5rem;
}

h3 {
  font-size: 1.125rem;
}

p {
  margin-bottom: 1rem;
}

/* =========================================================
   02. layout
   ========================================================= */

/* --- 全站统一页头 --- */

.site-header {
  background-color: var(--color-white);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 100;
}

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

.brand-logo {
  display: flex;
  align-items: baseline;
  gap: 10px;
  flex-shrink: 0;
}

.brand-name {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--color-ink);
  letter-spacing: 0.02em;
}

.brand-slogan {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  letter-spacing: 0.04em;
}

.site-nav {
  flex-shrink: 0;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 6px;
}

.nav-list li a {
  display: block;
  padding: 8px 16px;
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-navy);
  border-radius: var(--radius-sm);
  border-bottom: 2px solid transparent;
  transition: color 0.2s ease, border-color 0.2s ease, background-color 0.2s ease;
}

.nav-list li a:hover {
  color: var(--color-accent);
  background-color: var(--color-bg-light);
}

.nav-list li a.is-current {
  color: var(--color-accent);
  border-bottom-color: var(--color-accent);
  font-weight: 600;
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
}

.nav-toggle-icon {
  display: block;
  position: relative;
  width: 22px;
  height: 2px;
  background-color: var(--color-ink);
  border-radius: 1px;
  transition: background-color 0.2s ease;
}

.nav-toggle-icon::before,
.nav-toggle-icon::after {
  content: "";
  position: absolute;
  left: 0;
  width: 22px;
  height: 2px;
  background-color: var(--color-ink);
  border-radius: 1px;
  transition: transform 0.2s ease;
}

.nav-toggle-icon::before {
  top: -7px;
}

.nav-toggle-icon::after {
  top: 7px;
}

/* --- 全站统一页脚 --- */

.site-footer {
  background-color: var(--color-navy);
  color: #B8B8CC;
  margin-top: 64px;
}

.footer-inner {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 48px 24px 24px;
}

.footer-brand {
  margin-bottom: 32px;
}

.footer-slogan {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 8px;
}

.footer-desc {
  font-size: 0.875rem;
  color: #9A9AB0;
  max-width: 560px;
  line-height: 1.6;
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  padding: 32px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-col h3 {
  color: var(--color-white);
  font-size: 0.9375rem;
  font-weight: 600;
  margin-bottom: 16px;
}

.footer-col ul li {
  margin-bottom: 10px;
}

.footer-col ul li a {
  color: #9A9AB0;
  font-size: 0.875rem;
  transition: color 0.2s ease;
}

.footer-col ul li a:hover {
  color: var(--color-white);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 20px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
}

.footer-bottom p {
  font-size: 0.8125rem;
  color: #808098;
  margin-bottom: 0;
}

/* --- 主内容容器 --- */

.site-main {
  min-height: 60vh;
}

.inner-main {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 32px 24px 0;
}

/* --- 内页布局：主内容 + 侧栏 --- */

.page-layout,
.layout-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  gap: 40px;
  align-items: start;
}

.main-content {
  min-width: 0;
  min-width: 520px;
}

/* --- 面包屑 --- */

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin-bottom: 20px;
  flex-wrap: wrap;
}

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

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

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

.breadcrumb-current {
  color: var(--color-ink);
  font-weight: 500;
}

/* --- 页面标题区 --- */

.page-header {
  margin-bottom: 32px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--color-border);
}

.page-title {
  font-size: 1.875rem;
  font-weight: 800;
  color: var(--color-ink);
  margin-bottom: 12px;
}

.page-description {
  font-size: 1rem;
  color: var(--color-text-muted);
  line-height: 1.6;
  max-width: 680px;
  margin-bottom: 0;
}

/* =========================================================
   03. components —— 通用组件
   ========================================================= */

/* --- 侧栏 --- */

.sidebar {
  min-width: 0;
}

.sidebar-inner {
  background-color: var(--color-bg-light);
  border-radius: var(--radius-md);
  padding: 24px;
}

.sidebar-title {
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--color-ink);
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--color-accent);
}

.sidebar-links li {
  margin-bottom: 4px;
}

.sidebar-links li a {
  display: block;
  padding: 8px 0;
  font-size: 0.9375rem;
  color: var(--color-navy);
  border-bottom: 1px solid rgba(0, 0, 0, 0.04);
  transition: color 0.2s ease, padding-left 0.2s ease;
}

.sidebar-links li a:hover {
  color: var(--color-accent);
  padding-left: 6px;
}

.sidebar-note {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  margin-top: 16px;
  line-height: 1.6;
}

/* --- 侧栏卡片（guide / recommendations / updates 使用） --- */

.sidebar-card {
  background-color: var(--color-bg-light);
  border-radius: var(--radius-md);
  padding: 24px;
  margin-bottom: 24px;
}

.sidebar-card h2 {
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--color-ink);
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--color-accent);
}

/* --- 通用区块标题 --- */

.section-block {
  padding: 48px 0;
  max-width: var(--container-width);
  margin: 0 auto;
  padding-left: 24px;
  padding-right: 24px;
}

.section-block h2 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-ink);
  margin-bottom: 24px;
  position: relative;
  padding-left: 14px;
}

.section-block h2::before {
  content: "";
  position: absolute;
  left: 0;
  top: 4px;
  bottom: 4px;
  width: 4px;
  background-color: var(--color-accent);
  border-radius: 2px;
}

.section-title {
  font-size: 1.375rem;
  font-weight: 700;
  color: var(--color-ink);
  margin-bottom: 20px;
}

.section-more {
  text-align: right;
  margin-top: 20px;
  font-size: 0.9375rem;
}

.section-more a {
  color: var(--color-accent);
  font-weight: 500;
}

.section-intro,
.section-lead,
.section-note {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: 24px;
}

/* --- 标签 --- */

.tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--color-accent);
  background-color: rgba(233, 69, 96, 0.08);
  border: 1px solid rgba(233, 69, 96, 0.2);
  border-radius: 20px;
  padding: 2px 12px;
  margin-right: 6px;
  margin-bottom: 4px;
}

/* =========================================================
   04. pages —— 首页
   ========================================================= */

/* --- 全宽 hero 首屏 --- */

.hero-feature {
  background-color: var(--color-navy);
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 0;
  align-items: stretch;
  min-height: 420px;
}

.hero-media {
  overflow: hidden;
  position: relative;
  min-height: 320px;
}

.hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  position: absolute;
  inset: 0;
}

.hero-content {
  padding: 48px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-start;
  background-color: var(--color-navy);
  color: var(--color-white);
}

.hero-tag {
  display: inline-block;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-accent);
  background-color: rgba(233, 69, 96, 0.15);
  border-radius: 20px;
  padding: 4px 16px;
  margin-bottom: 16px;
}

.hero-content h1 {
  color: var(--color-white);
  font-size: 2.25rem;
  font-weight: 800;
  margin-bottom: 16px;
  line-height: 1.2;
}

.hero-description {
  color: #C8C8D8;
  font-size: 1rem;
  line-height: 1.7;
  margin-bottom: 24px;
  max-width: 480px;
}

.btn-hero {
  display: inline-block;
  background-color: var(--color-accent);
  color: var(--color-white);
  font-size: 0.9375rem;
  font-weight: 600;
  padding: 12px 32px;
  border-radius: var(--radius-md);
  transition: background-color 0.2s ease, transform 0.2s ease;
}

.btn-hero:hover {
  background-color: #d63851;
  color: var(--color-white);
  transform: translateY(-2px);
}

/* --- 题材分类横带 --- */

.genres-strip {
  background-color: var(--color-bg-light);
  border-bottom: 1px solid var(--color-border);
}

.genre-tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.genre-tag {
  display: inline-block;
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-navy);
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: 24px;
  padding: 8px 24px;
  transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.genre-tag:hover {
  background-color: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-white);
}

/* --- 最近更新 --- */

.recent-updates {
  background-color: var(--color-white);
}

.update-group {
  margin-bottom: 32px;
}

.update-date {
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-ink);
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--color-border);
}

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

.update-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 12px;
  background-color: var(--color-bg-light);
  border-radius: var(--radius-md);
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}

.update-item:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}

.update-item img {
  width: 56px;
  height: 72px;
  object-fit: cover;
  border-radius: var(--radius-sm);
  flex-shrink: 0;
}

.update-info {
  min-width: 0;
  flex: 1;
}

.update-info a {
  display: block;
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--color-ink);
  margin-bottom: 4px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

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

.update-status {
  display: inline-block;
  font-size: 0.75rem;
  color: var(--color-text-muted);
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: 2px 10px;
}

/* --- 人气榜单预览 --- */

.ranking-preview {
  background-color: var(--color-bg-light);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.ranking-list {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
}

.ranking-item {
  counter-increment: rank;
}

.ranking-card {
  background-color: var(--color-white);
  border-radius: var(--radius-md);
  padding: 20px;
  height: 100%;
  position: relative;
  box-shadow: var(--shadow-card);
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}

.ranking-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
}

.ranking-card h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 8px;
  padding-right: 28px;
}

.ranking-card h3 a {
  color: var(--color-ink);
}

.ranking-card h3 a:hover {
  color: var(--color-accent);
}

.ranking-reason {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  line-height: 1.6;
  margin-bottom: 0;
}

.rank-badge {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-accent);
  color: var(--color-white);
  font-size: 0.8125rem;
  font-weight: 700;
  border-radius: 50%;
}

.ranking-list li:nth-child(1) .rank-badge {
  background-color: #F5A623;
}

.ranking-list li:nth-child(2) .rank-badge {
  background-color: #8A8A9E;
}

.ranking-list li:nth-child(3) .rank-badge {
  background-color: #C47A4A;
}

.ranking-list li:nth-child(n+4) .rank-badge {
  background-color: var(--color-navy);
}

/* --- 阅读指南入口 --- */

.guide-entry {
  background-color: var(--color-white);
}

.guide-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.guide-card {
  background-color: var(--color-bg-light);
  border-radius: var(--radius-md);
  padding: 32px;
  border-left: 4px solid var(--color-accent);
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}

.guide-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}

.guide-card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.guide-card h3 a {
  color: var(--color-ink);
}

.guide-card h3 a:hover {
  color: var(--color-accent);
}

.guide-card p {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: 0;
}

/* =========================================================
   04. pages —— 题材分类页
   ========================================================= */

.genre-grid-section {
  margin-bottom: 48px;
}

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

.genre-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}

.genre-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
}

.genre-card-media {
  background-color: var(--color-bg-light);
  aspect-ratio: 16 / 9;
  display: flex;
  align-items: center;
  justify-content: center;
}

.genre-card-media::before {
  content: "漫";
  font-size: 2rem;
  font-weight: 800;
  color: var(--color-accent);
}

.genre-card-body {
  padding: 20px;
}

.genre-name {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--color-ink);
  margin-bottom: 8px;
}

.genre-desc {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 1.6;
  margin-bottom: 0;
}

.genre-detail-section {
  margin-bottom: 48px;
}

.genre-detail-block {
  margin-bottom: 24px;
  padding: 20px;
  background-color: var(--color-bg-light);
  border-radius: var(--radius-md);
}

.detail-subtitle {
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--color-ink);
  margin-bottom: 8px;
}

.genre-detail-block p {
  font-size: 0.9375rem;
  color: var(--color-text-body);
  line-height: 1.7;
  margin-bottom: 0;
}

.genre-detail-note {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-top: 24px;
  padding: 16px 20px;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

.genre-detail-note a {
  color: var(--color-accent);
  font-weight: 500;
}

/* =========================================================
   04. pages —— 阅读指南页
   ========================================================= */

.guide-section {
  margin-bottom: 48px;
}

.guide-section h2 {
  font-size: 1.375rem;
  font-weight: 700;
  color: var(--color-ink);
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--color-accent);
}

.content-media {
  margin: 20px 0;
  border-radius: var(--radius-md);
  overflow: hidden;
  background-color: var(--color-bg-light);
}

.content-media-inline {
  max-width: 640px;
}

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

.content-media figcaption {
  padding: 12px 16px;
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  background-color: var(--color-bg-light);
  border-top: 1px solid var(--color-border);
}

.step-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin-top: 24px;
}

.step-card {
  display: flex;
  gap: 16px;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 24px;
  transition: box-shadow 0.2s ease;
}

.step-card:hover {
  box-shadow: var(--shadow-hover);
}

.step-number {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-accent);
  color: var(--color-white);
  font-size: 1.125rem;
  font-weight: 700;
  border-radius: 50%;
}

.step-body h4 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-ink);
  margin-bottom: 6px;
}

.step-body p {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 1.6;
  margin-bottom: 0;
}

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

.tip-item {
  background-color: var(--color-bg-light);
  border-radius: var(--radius-md);
  padding: 20px;
}

.tip-item h4 {
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--color-ink);
  margin-bottom: 6px;
}

.tip-item p {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 1.6;
  margin-bottom: 0;
}

.plain-list {
  margin: 16px 0;
}

.plain-list li {
  padding: 8px 0;
  font-size: 0.9375rem;
  color: var(--color-text-body);
  border-bottom: 1px solid var(--color-border);
  line-height: 1.6;
}

.plain-list li:last-child {
  border-bottom: none;
}

/* =========================================================
   04. pages —— 作品推荐页
   ========================================================= */

.recommendation-list {
  margin-bottom: 48px;
}

.recommendation-list h2 {
  font-size: 1.375rem;
  font-weight: 700;
  color: var(--color-ink);
  margin-bottom: 12px;
}

.recommend-item {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 24px;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 24px;
  margin-bottom: 20px;
  transition: box-shadow 0.2s ease;
}

.recommend-item:hover {
  box-shadow: var(--shadow-hover);
}

.item-cover img {
  width: 160px;
  height: 200px;
  object-fit: cover;
  border-radius: var(--radius-sm);
}

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

.item-info h3 {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--color-ink);
  margin-bottom: 8px;
}

.item-tags {
  margin-bottom: 12px;
}

.item-reason {
  font-size: 0.9375rem;
  color: var(--color-text-body);
  line-height: 1.7;
  margin-bottom: 8px;
}

.item-viewpoint {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 1.6;
  margin-bottom: 0;
}

.recommendation-reasons {
  margin-bottom: 48px;
}

.recommendation-reasons h2 {
  font-size: 1.375rem;
  font-weight: 700;
  color: var(--color-ink);
  margin-bottom: 12px;
}

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

.reason-card {
  background-color: var(--color-bg-light);
  border-radius: var(--radius-md);
  padding: 24px;
}

.reason-card h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-ink);
  margin-bottom: 8px;
}

.reason-card p {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 1.6;
  margin-bottom: 0;
}

.related-links {
  background-color: var(--color-bg-light);
  border-radius: var(--radius-md);
  padding: 24px;
  margin-bottom: 48px;
}

.related-links p {
  font-size: 0.9375rem;
  color: var(--color-text-body);
  margin-bottom: 0;
}

.related-links a {
  color: var(--color-accent);
  font-weight: 500;
  margin: 0 8px;
}

/* =========================================================
   04. pages —— 最近更新页
   ========================================================= */

.updates-section {
  margin-bottom: 48px;
}

.updates-section h2 {
  font-size: 1.375rem;
  font-weight: 700;
  color: var(--color-ink);
  margin-bottom: 12px;
}

.updates-group {
  margin-bottom: 32px;
}

.updates-group h3 {
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--color-ink);
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--color-border);
}

.update-items {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.update-items .update-item {
  background-color: var(--color-bg-light);
  border-radius: var(--radius-md);
  padding: 12px;
  display: flex;
  align-items: center;
  gap: 16px;
  transition: box-shadow 0.2s ease;
}

.update-items .update-item:hover {
  box-shadow: var(--shadow-hover);
}

.update-cover {
  flex-shrink: 0;
  width: 56px;
  height: 72px;
  overflow: hidden;
  border-radius: var(--radius-sm);
  background-color: var(--color-white);
}

.update-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.update-info {
  min-width: 0;
  flex: 1;
}

.update-info a {
  display: block;
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--color-ink);
  margin-bottom: 6px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

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

.update-status {
  display: inline-block;
  font-size: 0.75rem;
  color: var(--color-text-muted);
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: 2px 10px;
}

.update-tags {
  margin-top: 6px;
}

.update-brief {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  line-height: 1.5;
  margin-top: 6px;
}

.date-groups-section {
  margin-bottom: 48px;
}

.date-groups-section h2 {
  font-size: 1.375rem;
  font-weight: 700;
  color: var(--color-ink);
  margin-bottom: 12px;
}

.date-groups-section > p {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: 16px;
}

.date-rules {
  background-color: var(--color-bg-light);
  border-radius: var(--radius-md);
  padding: 20px 24px;
  margin-bottom: 16px;
}

.date-rules li {
  padding: 6px 0;
  font-size: 0.875rem;
  color: var(--color-text-body);
  line-height: 1.6;
}

.date-rules strong {
  color: var(--color-ink);
  font-weight: 600;
  margin-right: 8px;
}

.date-groups-section a {
  color: var(--color-accent);
  font-weight: 500;
  margin: 0 6px;
}

/* =========================================================
   04. pages —— 404 页
   ========================================================= */

.error-main {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 60vh;
  padding: 48px 24px;
}

.error-panel {
  max-width: 560px;
  text-align: center;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 48px 40px;
  box-shadow: var(--shadow-card);
}

.error-code {
  font-size: 4rem;
  font-weight: 800;
  color: var(--color-accent);
  line-height: 1;
  margin-bottom: 16px;
}

.error-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-ink);
  margin-bottom: 12px;
}

.error-desc {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: 24px;
}

.error-home-link {
  display: inline-block;
  background-color: var(--color-accent);
  color: var(--color-white);
  font-size: 0.9375rem;
  font-weight: 600;
  padding: 12px 32px;
  border-radius: var(--radius-md);
  margin-bottom: 32px;
  transition: background-color 0.2s ease;
}

.error-home-link:hover {
  background-color: #d63851;
  color: var(--color-white);
}

.error-suggest {
  text-align: left;
  border-top: 1px solid var(--color-border);
  padding-top: 24px;
}

.error-suggest p {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--color-ink);
  margin-bottom: 12px;
}

.error-suggest ul li {
  margin-bottom: 8px;
}

.error-suggest ul li a {
  font-size: 0.9375rem;
  color: var(--color-accent);
}

.error-suggest ul li a:hover {
  color: #d63851;
}

/* =========================================================
   05. responsive —— 响应式断点
   ========================================================= */

/* --- 平板及以下：1024px --- */

@media (max-width: 1024px) {
  .page-layout,
  .layout-shell {
    grid-template-columns: minmax(0, 1fr) 260px;
    gap: 24px;
  }

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

  .hero-feature {
    grid-template-columns: 1fr;
  }

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

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

  .ranking-list {
    grid-template-columns: repeat(3, 1fr);
  }

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

/* --- 手机：768px --- */

@media (max-width: 768px) {
  :root {
    --header-height: 60px;
  }

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

  .brand-slogan {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }

  .site-nav {
    position: absolute;
    top: var(--header-height);
    left: 0;
    right: 0;
    background-color: var(--color-white);
    border-bottom: 1px solid var(--color-border);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
  }

  .nav-list {
    display: none;
    flex-direction: column;
    align-items: stretch;
    padding: 8px 16px;
    gap: 0;
  }

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

  .nav-list li a {
    padding: 14px 12px;
    border-bottom: 1px solid var(--color-border);
    border-radius: 0;
  }

  .nav-list li:last-child a {
    border-bottom: none;
  }

  .nav-list li a.is-current {
    border-bottom: 1px solid var(--color-border);
    background-color: rgba(233, 69, 96, 0.06);
  }

  .inner-main {
    padding: 24px 16px 0;
  }

  .page-layout,
  .layout-shell {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .main-content {
    min-width: 0;
    order: 1;
  }

  .sidebar {
    order: 2;
  }

  .section-block {
    padding-left: 16px;
    padding-right: 16px;
  }

  .hero-content {
    padding: 32px 24px;
  }

  .hero-content h1 {
    font-size: 1.75rem;
  }

  .update-list {
    grid-template-columns: 1fr;
  }

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

  .guide-cards {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .genre-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .step-list {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .tips-list {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .recommend-item {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .item-cover img {
    width: 100%;
    height: 200px;
  }

  .reason-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .update-items {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .footer-links {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 4px;
  }

  .error-panel {
    padding: 32px 24px;
  }

  .error-code {
    font-size: 3rem;
  }
}

/* --- 小屏手机：390px --- */

@media (max-width: 390px) {
  .brand-name {
    font-size: 1.25rem;
  }

  .hero-content {
    padding: 24px 16px;
  }

  .hero-content h1 {
    font-size: 1.5rem;
  }

  .ranking-list {
    grid-template-columns: 1fr;
  }

  .genre-tag {
    padding: 6px 16px;
    font-size: 0.875rem;
  }

  .step-card {
    padding: 16px;
  }

  .guide-card {
    padding: 24px;
  }

  .recommend-item {
    padding: 16px;
  }

  .reason-card {
    padding: 16px;
  }

  .sidebar-card,
  .sidebar-inner {
    padding: 16px;
  }
}