/* ============================================================
   51吃瓜群众 — 整站样式表
   视觉方向：暖色餐饮目录风 · 亲切可信 · 清晰层级
   ============================================================ */

/* ============================================================
   Base — 基础变量、重置、全局字体与颜色
   ============================================================ */
:root {
  --color-bg: #FFF8F0;
  --color-bg-soft: #F5E6D3;
  --color-surface: #FFFFFF;
  --color-primary: #8B4513;
  --color-primary-soft: #D2691E;
  --color-text: #333333;
  --color-text-light: #6B5D4F;
  --color-border: #E8D9C5;
  --color-white: #FFFFFF;
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 8px;
  --shadow-sm: 0 1px 3px rgba(139, 69, 19, 0.08);
  --shadow-md: 0 4px 12px rgba(139, 69, 19, 0.1);
  --container-width: 1200px;
  --header-height: 68px;
  --transition-base: 0.2s ease;
  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}

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

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

body {
  font-family: var(--font-family);
  font-size: 16px;
  line-height: 1.75;
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-base);
}

a:hover {
  color: var(--color-primary-soft);
}

ul, ol {
  list-style: none;
}

h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.4;
  color: var(--color-text);
}

h1 { font-size: 28px; }
h2 { font-size: 22px; }
h3 { font-size: 18px; }
h4 { font-size: 16px; }

/* ============================================================
   Layout — 页头、页脚、主容器、面包屑、页面标题区
   ============================================================ */

/* 页头 */
.site-header {
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow-sm);
}

.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-link {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.brand-name {
  font-size: 24px;
  font-weight: 800;
  color: var(--color-primary);
  letter-spacing: 0.5px;
  white-space: nowrap;
}

.brand-name::before {
  content: "◆ ";
  color: var(--color-primary-soft);
  font-size: 18px;
}

/* 主导航 */
.site-nav {
  display: flex;
  align-items: center;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-list li a {
  display: block;
  padding: 8px 16px;
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text);
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
}

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

.nav-list li a.is-current {
  color: var(--color-primary);
  background-color: var(--color-bg-soft);
  font-weight: 600;
}

/* 汉堡按钮 */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 10px;
  flex-direction: column;
  gap: 5px;
  border-radius: var(--radius-sm);
}

.nav-toggle-line {
  display: block;
  width: 22px;
  height: 2px;
  background-color: var(--color-primary);
  border-radius: 2px;
  transition: transform var(--transition-base), opacity var(--transition-base);
}

/* 页脚 */
.site-footer {
  background-color: var(--color-text);
  color: #E8D9C5;
  margin-top: 64px;
}

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

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

.footer-brand-name {
  display: block;
  font-size: 24px;
  font-weight: 800;
  color: var(--color-bg);
  margin-bottom: 8px;
}

.footer-slogan {
  font-size: 14px;
  color: #C9B8A5;
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  padding: 32px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-col h4 {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-bg);
  margin-bottom: 12px;
}

.footer-col ul li {
  margin-bottom: 8px;
}

.footer-col ul li a {
  font-size: 14px;
  color: #C9B8A5;
  transition: color var(--transition-base);
}

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

.footer-bottom {
  padding-top: 24px;
  text-align: center;
}

.footer-bottom p {
  font-size: 13px;
  color: #A89784;
}

/* 主容器 */
.site-main {
  min-height: 60vh;
}

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

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

/* 面包屑 */
.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  padding: 20px 0 4px;
  font-size: 14px;
  color: var(--color-text-light);
}

.breadcrumb a {
  color: var(--color-text-light);
  transition: color var(--transition-base);
}

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

.breadcrumb-sep {
  color: var(--color-border);
  font-size: 12px;
}

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

/* 页面标题区 */
.page-header {
  padding: 24px 0 32px;
  border-bottom: 1px solid var(--color-border);
  margin-bottom: 32px;
}

.page-title {
  font-size: 28px;
  font-weight: 800;
  color: var(--color-text);
  margin-bottom: 8px;
}

.page-description {
  font-size: 15px;
  color: var(--color-text-light);
  max-width: 720px;
}

/* 通用 section 标题 */
.section-title {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 24px;
  padding-left: 14px;
  border-left: 4px solid var(--color-primary-soft);
  line-height: 1.4;
}

/* ============================================================
   Components — 按钮、卡片、列表、时间线等通用组件
   ============================================================ */

/* 按钮 */
.btn-primary,
.btn-outline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 28px;
  font-size: 15px;
  font-weight: 600;
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
  min-height: 44px;
}

.btn-primary {
  background-color: var(--color-primary);
  color: var(--color-white);
  border: 1px solid var(--color-primary);
}

.btn-primary:hover {
  background-color: var(--color-primary-soft);
  border-color: var(--color-primary-soft);
  color: var(--color-white);
}

.btn-outline {
  background-color: transparent;
  color: var(--color-primary);
  border: 1px solid var(--color-primary);
}

.btn-outline:hover {
  background-color: var(--color-primary);
  color: var(--color-white);
}

/* 文本链接 */
.text-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-primary-soft);
}

.text-link::after {
  content: "→";
  font-size: 14px;
  transition: transform var(--transition-base);
}

.text-link:hover::after {
  transform: translateX(4px);
}

/* ============================================================
   Pages — 首页
   ============================================================ */

/* Hero 区域 */
.hero-section {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
  padding: 48px 0 56px;
}

.hero-content {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 16px;
}

.hero-title {
  font-size: 32px;
  font-weight: 800;
  line-height: 1.3;
  color: var(--color-text);
}

.hero-slogan {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-primary-soft);
}

.hero-desc {
  font-size: 15px;
  line-height: 1.8;
  color: var(--color-text-light);
  max-width: 520px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  margin-top: 8px;
  flex-wrap: wrap;
}

.hero-figure {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

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

/* 焦点报道 */
.focus-section {
  padding: 40px 0;
}

.focus-card {
  background-color: var(--color-bg-soft);
  border-radius: var(--radius-lg);
  padding: 32px;
  border-left: 4px solid var(--color-primary-soft);
}

.focus-article-title {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 12px;
}

.focus-article-title a {
  color: var(--color-text);
}

.focus-article-title a:hover {
  color: var(--color-primary);
}

.focus-excerpt {
  font-size: 15px;
  color: var(--color-text-light);
  line-height: 1.8;
  margin-bottom: 16px;
  max-width: 720px;
}

/* 最新动态 */
.latest-section {
  padding: 40px 0;
}

.timeline-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.timeline-item {
  display: flex;
  gap: 20px;
  align-items: flex-start;
  background-color: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: 16px;
  border: 1px solid var(--color-border);
  transition: box-shadow var(--transition-base);
}

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

.timeline-item img {
  width: 160px;
  height: 100px;
  object-fit: cover;
  border-radius: var(--radius-md);
  flex-shrink: 0;
}

.timeline-content {
  flex: 1;
  min-width: 0;
}

.timeline-content h3 {
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 6px;
}

.timeline-content h3 a {
  color: var(--color-text);
}

.timeline-content h3 a:hover {
  color: var(--color-primary);
}

.item-summary {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.7;
  margin-bottom: 8px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.timeline-content time {
  font-size: 13px;
  color: var(--color-text-light);
}

/* 专题推荐 */
.special-section {
  padding: 40px 0;
}

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

.special-card {
  background-color: var(--color-surface);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
  transition: box-shadow var(--transition-base);
}

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

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

.special-card h3 {
  padding: 16px 20px 8px;
  font-size: 18px;
  font-weight: 600;
}

.special-card h3 a {
  color: var(--color-text);
}

.special-card h3 a:hover {
  color: var(--color-primary);
}

.special-summary {
  padding: 0 20px 20px;
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.7;
}

/* 编辑推荐 */
.recommend-section {
  padding: 40px 0;
}

.recommend-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.recommend-item {
  display: flex;
  flex-direction: column;
  gap: 6px;
  background-color: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: 20px 24px;
  border: 1px solid var(--color-border);
  transition: box-shadow var(--transition-base);
}

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

.recommend-item h3 {
  font-size: 17px;
  font-weight: 600;
}

.recommend-item h3 a {
  color: var(--color-text);
}

.recommend-item h3 a:hover {
  color: var(--color-primary);
}

.recommend-reason {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.7;
}

/* 信息来源与反馈 */
.source-section {
  padding: 40px 0;
  max-width: 800px;
}

.source-desc {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.8;
  margin-bottom: 12px;
  padding-left: 16px;
  border-left: 3px solid var(--color-bg-soft);
}

/* ============================================================
   Pages — 资讯列表页 (zixun.html)
   ============================================================ */

.page-layout {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 40px;
  align-items: start;
}

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

/* 资讯列表 */
.news-section {
  margin-bottom: 40px;
}

.news-item {
  display: flex;
  gap: 20px;
  padding: 20px 0;
  border-bottom: 1px solid var(--color-border);
}

.news-media {
  flex-shrink: 0;
  width: 200px;
}

.news-media img {
  width: 100%;
  height: 120px;
  object-fit: cover;
  border-radius: var(--radius-md);
}

.news-body {
  flex: 1;
  min-width: 0;
}

.news-title {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 8px;
}

.news-title a {
  color: var(--color-text);
}

.news-title a:hover {
  color: var(--color-primary);
}

.news-summary {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.7;
  margin-bottom: 8px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-date {
  font-size: 13px;
  color: var(--color-text-light);
}

/* 时间线导航 */
.timeline-section {
  margin-bottom: 40px;
  background-color: var(--color-bg-soft);
  border-radius: var(--radius-lg);
  padding: 24px;
}

.timeline-intro {
  font-size: 14px;
  color: var(--color-text-light);
  margin-bottom: 20px;
}

.timeline-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.timeline-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  background-color: transparent;
  border: none;
  padding: 0;
}

.timeline-date {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-primary);
  flex-shrink: 0;
  min-width: 96px;
}

.timeline-desc {
  font-size: 14px;
  color: var(--color-text);
  line-height: 1.7;
}

.timeline-more {
  margin-top: 20px;
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.timeline-more a {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-primary-soft);
}

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

/* 侧栏 */
.content-side {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.sidebar-box {
  background-color: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: 24px;
  border: 1px solid var(--color-border);
}

.sidebar-title {
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--color-border);
}

.category-list li {
  margin-bottom: 4px;
}

.category-list li a {
  display: block;
  padding: 8px 12px;
  font-size: 14px;
  color: var(--color-text);
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
}

.category-list li a:hover {
  background-color: var(--color-bg-soft);
  color: var(--color-primary);
}

.sidebar-more {
  background-color: var(--color-bg-soft);
  border-color: transparent;
}

/* ============================================================
   Pages — 专题列表页 (zhuanti.html)
   ============================================================ */

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

.topic-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.topic-card {
  background-color: var(--color-surface);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
  transition: box-shadow var(--transition-base);
  display: flex;
  flex-direction: column;
}

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

.topic-media {
  overflow: hidden;
}

.topic-media img {
  width: 100%;
  height: 180px;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.topic-card:hover .topic-media img {
  transform: scale(1.03);
}

.topic-body {
  padding: 20px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.topic-body h3 {
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 8px;
}

.topic-body h3 a {
  color: var(--color-text);
}

.topic-body h3 a:hover {
  color: var(--color-primary);
}

.topic-summary {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.7;
  margin-bottom: 16px;
  flex: 1;
}

.topic-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.topic-tag {
  font-size: 12px;
  color: var(--color-primary-soft);
  background-color: var(--color-bg-soft);
  padding: 4px 10px;
  border-radius: 999px;
}

.topic-meta a {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-primary-soft);
}

.topic-meta a:hover {
  color: var(--color-primary);
}

/* 专题入口 */
.topic-entry-section {
  background-color: var(--color-bg-soft);
  border-radius: var(--radius-lg);
  padding: 32px;
}

.section-desc {
  font-size: 14px;
  color: var(--color-text-light);
  margin-bottom: 20px;
}

.section-desc a {
  color: var(--color-primary);
  font-weight: 600;
}

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

.entry-item {
  background-color: var(--color-surface);
  border-radius: var(--radius-md);
  padding: 20px;
  border: 1px solid var(--color-border);
  transition: box-shadow var(--transition-base);
}

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

.entry-item a {
  display: block;
}

.entry-item h3 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--color-text);
}

.entry-item h3:hover {
  color: var(--color-primary);
}

.entry-item p {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.7;
}

.entry-tip {
  margin-top: 20px;
  font-size: 13px;
  color: var(--color-text-light);
}

/* ============================================================
   Pages — 解读文章页 (jiedu.html)
   ============================================================ */

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

.article-content {
  background-color: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: 40px;
  border: 1px solid var(--color-border);
}

.article-hero {
  margin-bottom: 32px;
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.article-hero img {
  width: 100%;
  height: 360px;
  object-fit: cover;
}

.article-hero figcaption {
  padding: 12px 16px;
  font-size: 13px;
  color: var(--color-text-light);
  background-color: var(--color-bg-soft);
}

.article-content h2 {
  font-size: 20px;
  font-weight: 700;
  margin: 32px 0 16px;
  color: var(--color-text);
}

.article-content h3 {
  font-size: 18px;
  font-weight: 600;
  margin: 24px 0 12px;
  color: var(--color-text);
}

.article-content p {
  font-size: 15px;
  line-height: 1.9;
  color: var(--color-text);
  margin-bottom: 16px;
}

/* 编辑推荐（文章页） */
.recommend-section {
  margin-top: 40px;
}

.section-intro {
  font-size: 14px;
  color: var(--color-text-light);
  margin-bottom: 20px;
}

.recommend-item {
  background-color: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: 20px 24px;
  border: 1px solid var(--color-border);
  margin-bottom: 16px;
  transition: box-shadow var(--transition-base);
}

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

.recommend-text h3 {
  font-size: 16px;
  font-weight: 600;
}

.recommend-text h3 a {
  color: var(--color-text);
}

.recommend-text h3 a:hover {
  color: var(--color-primary);
}

.recommend-text p {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.7;
  margin-top: 6px;
}

/* 侧栏（解读页） */
.layout-aside {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.aside-box {
  background-color: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: 24px;
  border: 1px solid var(--color-border);
}

.aside-box h3 {
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--color-border);
}

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

.aside-links li a {
  display: block;
  padding: 8px 12px;
  font-size: 14px;
  color: var(--color-text);
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
}

.aside-links li a:hover {
  background-color: var(--color-bg-soft);
  color: var(--color-primary);
}

.aside-principles {
  background-color: var(--color-bg-soft);
  border-color: transparent;
}

.aside-principles ul li {
  font-size: 14px;
  color: var(--color-text);
  padding: 8px 0;
  border-bottom: 1px solid rgba(139, 69, 19, 0.1);
  line-height: 1.6;
}

.aside-principles ul li:last-child {
  border-bottom: none;
}

/* ============================================================
   Pages — 长尾话题页 (changwei.html)
   ============================================================ */

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

.event-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.event-item {
  display: flex;
  gap: 20px;
  background-color: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: 20px;
  border: 1px solid var(--color-border);
  transition: box-shadow var(--transition-base);
}

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

.event-item img {
  width: 140px;
  height: 100px;
  object-fit: cover;
  border-radius: var(--radius-md);
  flex-shrink: 0;
}

.event-body {
  flex: 1;
  min-width: 0;
}

.event-body h3 {
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 8px;
}

.event-body h3 a {
  color: var(--color-text);
}

.event-body h3 a:hover {
  color: var(--color-primary);
}

.event-body p {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.7;
  margin-bottom: 8px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.event-date {
  font-size: 13px;
  color: var(--color-text-light);
}

/* 相关阅读 */
.related-links {
  background-color: var(--color-bg-soft);
  border-radius: var(--radius-lg);
  padding: 32px;
}

.related-links p {
  font-size: 14px;
  line-height: 2;
}

.related-links a {
  color: var(--color-primary);
  font-weight: 500;
  margin-right: 16px;
}

.related-links a:hover {
  color: var(--color-primary-soft);
}

/* 来源说明 */
.source-note {
  max-width: 800px;
}

.source-note p {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.8;
}

/* ============================================================
   Pages — 404 错误页
   ============================================================ */

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

.error-section {
  text-align: center;
  max-width: 560px;
}

.error-code {
  font-size: 96px;
  font-weight: 800;
  color: var(--color-primary-soft);
  line-height: 1;
  margin-bottom: 16px;
}

.error-section h1 {
  font-size: 28px;
  margin-bottom: 16px;
}

.error-desc {
  font-size: 15px;
  color: var(--color-text-light);
  margin-bottom: 32px;
}

.error-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 32px;
  background-color: var(--color-primary);
  color: var(--color-white);
  border-radius: var(--radius-md);
  font-size: 15px;
  font-weight: 600;
  min-height: 44px;
  transition: background-color var(--transition-base);
}

.error-link:hover {
  background-color: var(--color-primary-soft);
  color: var(--color-white);
}

/* ============================================================
   Responsive — 响应式断点
   ============================================================ */

/* 1024px 断点 */
@media (max-width: 1024px) {
  .hero-section {
    gap: 32px;
  }

  .hero-title {
    font-size: 28px;
  }

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

  .page-layout {
    grid-template-columns: 1fr 280px;
    gap: 24px;
  }

  .article-content {
    padding: 32px;
  }

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

/* 768px 断点 */
@media (max-width: 768px) {
  .header-inner {
    padding: 0 16px;
  }

  /* 汉堡菜单 */
  .nav-toggle {
    display: flex;
  }

  .site-nav {
    position: absolute;
    top: var(--header-height);
    left: 0;
    right: 0;
    background-color: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-md);
  }

  .nav-list {
    display: none;
    flex-direction: column;
    align-items: stretch;
    padding: 12px 16px;
    gap: 4px;
  }

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

  .nav-list li a {
    padding: 12px 16px;
    font-size: 16px;
  }

  /* 首页 */
  .home-main,
  .inner-main {
    padding: 0 16px;
  }

  .hero-section {
    grid-template-columns: 1fr;
    gap: 24px;
    padding: 32px 0;
  }

  .hero-figure img {
    height: 240px;
  }

  .hero-actions {
    width: 100%;
  }

  .hero-actions .btn-primary,
  .hero-actions .btn-outline {
    flex: 1;
  }

  .focus-card {
    padding: 24px;
  }

  .timeline-item {
    flex-direction: column;
    gap: 12px;
  }

  .timeline-item img {
    width: 100%;
    height: 160px;
  }

  .special-grid {
    grid-template-columns: 1fr;
  }

  /* 内页 */
  .page-header {
    padding: 16px 0 24px;
  }

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

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

  .content-side,
  .layout-aside {
    order: 2;
  }

  .news-item {
    flex-direction: column;
    gap: 12px;
  }

  .news-media {
    width: 100%;
  }

  .news-media img {
    height: 180px;
  }

  .timeline-item {
    flex-direction: column;
    gap: 8px;
  }

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

  .topic-grid {
    grid-template-columns: 1fr;
  }

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

  .article-content {
    padding: 24px;
  }

  .article-hero img {
    height: 220px;
  }

  .event-item {
    flex-direction: column;
    gap: 12px;
  }

  .event-item img {
    width: 100%;
    height: 160px;
  }

  /* 页脚 */
  .footer-inner {
    padding: 32px 16px 16px;
  }

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

  .error-code {
    font-size: 72px;
  }
}

/* 480px 断点 */
@media (max-width: 480px) {
  .brand-name {
    font-size: 20px;
  }

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

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

  .hero-actions {
    flex-direction: column;
  }

  .hero-actions .btn-primary,
  .hero-actions .btn-outline {
    width: 100%;
  }

  .focus-article-title {
    font-size: 18px;
  }

  .section-title {
    font-size: 20px;
  }

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

  .footer-col h4 {
    font-size: 14px;
  }

  .footer-col ul li a {
    font-size: 13px;
  }

  .article-content {
    padding: 20px;
  }

  .article-content h2 {
    font-size: 18px;
  }

  .article-content h3 {
    font-size: 16px;
  }

  .error-code {
    font-size: 56px;
  }

  .error-section h1 {
    font-size: 24px;
  }
}