/* ==========================================================
   51吃瓜网下载 - 整站样式表
   视觉方向：儿童教育风（高对比友好色、圆润图形、清晰层级）
   配色：珊瑚红 #FF6B6B / 青蓝 #4ECDC4 / 明黄 #FFE66D / 浅绿白 #F7FFF7 / 深灰 #2F2F2F
   ========================================================== */

/* ==========================================================
   01. Base —— 基础重置、变量、全局字体与背景
   ========================================================== */
:root {
  --color-primary: #FF6B6B;
  --color-secondary: #4ECDC4;
  --color-accent: #FFE66D;
  --color-bg: #F7FFF7;
  --color-text: #2F2F2F;
  --color-text-light: #5A6A5A;
  --color-white: #FFFFFF;
  --color-border: #E0EEE0;
  --color-dark: #2F2F2F;

  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --font-heading: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei",
    "Heiti SC", sans-serif;

  --container-width: 1200px;
  --container-padding: 0 24px;
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 8px;
  --shadow-sm: 0 1px 4px rgba(47, 47, 47, 0.08);
  --shadow-md: 0 4px 16px rgba(47, 47, 47, 0.1);
  --transition: 0.25s ease;
}

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

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

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}

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

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

a:hover {
  color: #E85555;
}

ul,
ol {
  list-style: none;
}

h1,
h2,
h3,
h4 {
  font-family: var(--font-heading);
  line-height: 1.3;
  color: var(--color-text);
}

h1 {
  font-size: 28px;
  font-weight: 700;
}

h2 {
  font-size: 22px;
  font-weight: 700;
}

h3 {
  font-size: 18px;
  font-weight: 600;
}

p {
  line-height: 1.6;
}

time {
  color: var(--color-text-light);
  font-size: 14px;
}

/* ==========================================================
   02. Layout —— 全站统一容器、页面骨架
   ========================================================== */
.site-body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.site-main {
  flex: 1 0 auto;
}

/* 统一内容容器宽度 */
.header-inner,
.footer-inner,
.hero-layout,
.section-head,
.news-list,
.featured-cards,
.picks-list,
.feedback-inner,
.page-layout,
.error-content {
  width: 100%;
  max-width: var(--container-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: 24px;
  padding-right: 24px;
}

/* 内页布局：主内容 + 侧栏 */
.page-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  gap: 32px;
  padding-top: 32px;
  padding-bottom: 48px;
  align-items: start;
}

/* 单栏布局（关于页） */
.layout-single {
  display: block;
  max-width: 860px;
}

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

/* ==========================================================
   03. Header —— 页头、品牌、导航、汉堡菜单
   ========================================================== */
.site-header {
  background-color: var(--color-white);
  border-bottom: 3px solid var(--color-primary);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow-sm);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 64px;
  padding-top: 8px;
  padding-bottom: 8px;
  gap: 16px;
}

.brand-logo {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
  flex-shrink: 0;
}

.brand-name {
  font-family: var(--font-heading);
  font-size: 22px;
  font-weight: 700;
  color: var(--color-primary);
}

.brand-slogan {
  font-size: 12px;
  color: var(--color-text-light);
  letter-spacing: 0.02em;
}

.site-nav {
  display: flex;
  align-items: center;
}

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

.nav-list li a {
  display: block;
  padding: 8px 14px;
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text);
  border-radius: var(--radius-md);
  transition: background-color var(--transition), color var(--transition);
}

.nav-list li a:hover {
  color: var(--color-primary);
  background-color: rgba(255, 107, 107, 0.08);
}

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

/* 汉堡按钮（默认隐藏） */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 8px;
  background: none;
  border: none;
  cursor: pointer;
  border-radius: var(--radius-md);
}

.nav-toggle:hover {
  background-color: rgba(255, 107, 107, 0.1);
}

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

/* ==========================================================
   04. Footer —— 全站统一页脚
   ========================================================== */
.site-footer {
  background-color: var(--color-dark);
  color: rgba(255, 255, 255, 0.85);
  margin-top: auto;
}

.footer-inner {
  padding-top: 40px;
  padding-bottom: 24px;
  display: grid;
  grid-template-columns: 1.2fr 2fr;
  gap: 40px;
}

.footer-brand-name {
  font-family: var(--font-heading);
  font-size: 20px;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 8px;
}

.footer-brand-desc {
  font-size: 14px;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.7);
}

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

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

.footer-col ul li {
  margin-bottom: 6px;
}

.footer-col ul li a {
  color: rgba(255, 255, 255, 0.7);
  font-size: 14px;
  transition: color var(--transition);
}

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

.footer-bottom {
  grid-column: 1 / -1;
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  padding-top: 16px;
  margin-top: 16px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.footer-bottom p {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.55);
}

/* ==========================================================
   05. Components —— 通用组件
   ========================================================== */

/* 面包屑 */
.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 14px;
  margin-bottom: 24px;
  padding-top: 24px;
}

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

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

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

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

/* 页面标题区 */
.page-header {
  margin-bottom: 32px;
}

.page-title {
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--color-text);
}

.page-description {
  font-size: 16px;
  color: var(--color-text-light);
  max-width: 760px;
  line-height: 1.6;
}

/* 区块标题（内页） */
.section-title {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--color-primary);
  display: inline-block;
}

/* 首页区块头部 */
.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 20px;
}

.section-head h2 {
  font-size: 22px;
  font-weight: 700;
  position: relative;
  padding-left: 12px;
}

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

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

/* 区块底部更多链接 */
.section-footer {
  text-align: center;
  margin-top: 24px;
}

.section-more {
  display: inline-block;
  padding: 8px 24px;
  background-color: var(--color-white);
  border: 2px solid var(--color-primary);
  border-radius: var(--radius-lg);
  color: var(--color-primary);
  font-weight: 600;
  font-size: 14px;
  transition: background-color var(--transition), color var(--transition);
}

.section-more:hover {
  background-color: var(--color-primary);
  color: var(--color-white);
}

/* 侧栏 */
.sidebar {
  min-width: 0;
}

.sidebar-card,
.sidebar-widget,
.sidebar-inner {
  background-color: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 20px;
  box-shadow: var(--shadow-sm);
  margin-bottom: 20px;
}

.sidebar-title,
.widget-title {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--color-secondary);
  color: var(--color-text);
}

.sidebar-links li,
.widget-links li {
  margin-bottom: 10px;
}

.sidebar-links li a,
.widget-links li a {
  font-size: 14px;
  color: var(--color-text);
  display: inline-block;
  transition: color var(--transition), transform var(--transition);
}

.sidebar-links li a:hover,
.widget-links li a:hover {
  color: var(--color-primary);
  transform: translateX(3px);
}

/* 侧栏图片 */
.sidebar-img {
  margin-top: 16px;
}

.sidebar-img figure {
  border-radius: var(--radius-md);
  overflow: hidden;
}

.sidebar-img img {
  width: 100%;
  height: 160px;
  object-fit: cover;
}

.sidebar-img figcaption {
  font-size: 13px;
  color: var(--color-text-light);
  padding: 8px 4px 0;
  line-height: 1.5;
}

/* 反馈说明块 */
.feedback-note {
  background-color: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 20px 24px;
  border-left: 4px solid var(--color-secondary);
  box-shadow: var(--shadow-sm);
}

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

.feedback-note p {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.6;
}

/* ==========================================================
   06. Home —— 首页专属模块
   ========================================================== */
.home-main {
  padding-bottom: 48px;
}

/* 首屏焦点报道 */
.hero-section {
  padding: 32px 0;
  background-color: var(--color-white);
  border-bottom: 1px solid var(--color-border);
}

.hero-layout {
  display: grid;
  grid-template-columns: 1.6fr 1fr;
  gap: 32px;
  align-items: stretch;
}

.hero-card {
  background-color: var(--color-bg);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  display: flex;
  flex-direction: column;
}

.hero-media {
  width: 100%;
  height: 320px;
  overflow: hidden;
}

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

.hero-content {
  padding: 20px 24px 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.hero-tag {
  display: inline-block;
  background-color: var(--color-primary);
  color: var(--color-white);
  font-size: 12px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: var(--radius-sm);
  align-self: flex-start;
  margin-bottom: 12px;
}

.hero-content h1 {
  font-size: 24px;
  margin-bottom: 12px;
}

.hero-summary {
  font-size: 15px;
  color: var(--color-text-light);
  margin-bottom: 16px;
  flex: 1;
}

.hero-link {
  display: inline-block;
  padding: 8px 20px;
  background-color: var(--color-primary);
  color: var(--color-white);
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 14px;
  align-self: flex-start;
  transition: background-color var(--transition);
}

.hero-link:hover {
  background-color: #E85555;
  color: var(--color-white);
}

/* 频道分类导航（首页） */
.category-nav {
  padding: 40px 0 8px;
}

.category-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.category-tab {
  display: inline-block;
  padding: 10px 20px;
  background-color: var(--color-white);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-lg);
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text);
  transition: all var(--transition);
}

.category-tab:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

/* 最新资讯列表 */
.latest-news {
  padding: 32px 0;
}

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

.news-item {
  display: flex;
  gap: 20px;
  background-color: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 20px 24px;
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition), transform var(--transition);
}

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

.news-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
  min-width: 160px;
}

.news-category {
  display: inline-block;
  background-color: rgba(78, 205, 196, 0.15);
  color: #2BA89F;
  font-size: 12px;
  font-weight: 600;
  padding: 2px 10px;
  border-radius: var(--radius-sm);
}

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

.news-title {
  font-size: 16px;
  margin-bottom: 4px;
  flex: 1;
}

.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: 1.5;
  flex: 1;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* 专题推荐（首页与专题页共用卡片） */
.featured-grid {
  padding: 32px 0;
}

.featured-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.featured-card {
  background-color: var(--color-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition), transform var(--transition);
}

.featured-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}

.card-media {
  width: 100%;
  height: 180px;
  overflow: hidden;
}

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

.card-content {
  padding: 16px 20px 20px;
}

.card-title {
  font-size: 16px;
  margin-bottom: 8px;
}

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

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

.card-desc {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* 编辑推荐 */
.editor-picks {
  padding: 32px 0;
  background-color: var(--color-white);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

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

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

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

.pick-index {
  font-size: 28px;
  font-weight: 800;
  color: var(--color-primary);
  line-height: 1;
  flex-shrink: 0;
  min-width: 36px;
  text-align: center;
  font-family: var(--font-heading);
}

.pick-content {
  flex: 1;
}

.pick-title {
  font-size: 16px;
  margin-bottom: 4px;
}

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

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

.pick-reason {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.5;
}

/* 首页反馈说明 */
.feedback-note {
  margin-top: 32px;
}

.feedback-inner {
  background-color: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 28px 32px;
  border-left: 4px solid var(--color-secondary);
  box-shadow: var(--shadow-sm);
}

.feedback-inner h2 {
  font-size: 18px;
  margin-bottom: 12px;
  color: var(--color-text);
}

.feedback-inner p {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.7;
  margin-bottom: 8px;
}

.feedback-inner p:last-child {
  margin-bottom: 0;
}

/* ==========================================================
   07. Pages —— 内页专属模块
   ========================================================== */

/* ---------- 热点资讯页（hot-topics） ---------- */
.page-hot-topics .category-tabs {
  margin-bottom: 32px;
}

.tabs-scroll {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 32px;
}

.tab-btn {
  padding: 8px 18px;
  background-color: var(--color-white);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-lg);
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text);
  cursor: pointer;
  font-family: var(--font-sans);
  transition: all var(--transition);
}

.tab-btn:hover {
  border-color: var(--color-secondary);
  color: #2BA89F;
}

.tab-btn.is-active {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-white);
  font-weight: 600;
}

/* 分类分组 */
.category-group {
  margin-bottom: 32px;
}

.group-title {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 12px;
  padding-left: 12px;
  border-left: 4px solid var(--color-primary);
  color: var(--color-text);
}

.category-group .news-item {
  display: flex;
  gap: 16px;
  padding: 16px;
  margin-bottom: 12px;
}

.news-thumb {
  width: 120px;
  height: 80px;
  flex-shrink: 0;
  border-radius: var(--radius-md);
  overflow: hidden;
}

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

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

.news-body .news-title {
  font-size: 15px;
  margin-bottom: 4px;
}

.news-body .news-meta {
  min-width: 0;
  margin-bottom: 4px;
}

.news-excerpt {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ---------- 专题策划页（featured） ---------- */
.page-featured .featured-grid-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-bottom: 40px;
}

.page-featured .featured-card img {
  width: 100%;
  height: 180px;
  object-fit: cover;
}

.page-featured .card-body {
  padding: 16px 20px 20px;
}

.page-featured .card-body h3 {
  font-size: 16px;
  margin-bottom: 8px;
}

.page-featured .card-body h3 a {
  color: var(--color-text);
}

.page-featured .card-body h3 a:hover {
  color: var(--color-primary);
}

.page-featured .card-body p {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* 专题简介列表 */
.featured-brief {
  margin-top: 8px;
}

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

.brief-item {
  background-color: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 20px 24px;
  box-shadow: var(--shadow-sm);
  border-left: 4px solid var(--color-accent);
}

.brief-item h3 {
  font-size: 16px;
  margin-bottom: 6px;
}

.brief-item p {
  font-size: 14px;
  color: var(--color-text-light);
  margin-bottom: 8px;
  line-height: 1.5;
}

.brief-item a {
  font-size: 14px;
  font-weight: 600;
}

/* ---------- 实用指南页（guide） ---------- */
.page-guide .section-intro {
  font-size: 15px;
  color: var(--color-text-light);
  margin-bottom: 24px;
}

.guide-list {
  margin-bottom: 40px;
}

.guide-item {
  display: flex;
  gap: 24px;
  background-color: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 20px 24px;
  box-shadow: var(--shadow-sm);
  margin-bottom: 16px;
  transition: box-shadow var(--transition);
}

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

.guide-item-text {
  flex: 1;
}

.guide-item-text h3 {
  font-size: 16px;
  margin-bottom: 8px;
}

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

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

.guide-item-text p {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.5;
  margin-bottom: 8px;
}

.guide-item-text a {
  font-size: 14px;
  font-weight: 600;
}

/* 步骤区块 */
.steps-section {
  margin-bottom: 40px;
}

.steps-section > h2 {
  margin-bottom: 8px;
}

.steps-section > p {
  font-size: 15px;
  color: var(--color-text-light);
  margin-bottom: 24px;
}

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

.step-card {
  background-color: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 20px;
  box-shadow: var(--shadow-sm);
  position: relative;
}

.step-number {
  display: inline-block;
  background-color: var(--color-secondary);
  color: var(--color-white);
  font-size: 14px;
  font-weight: 700;
  width: 32px;
  height: 32px;
  line-height: 32px;
  text-align: center;
  border-radius: 50%;
  margin-bottom: 12px;
  font-family: var(--font-heading);
}

.step-card h3 {
  font-size: 15px;
  margin-bottom: 6px;
}

.step-card p {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.5;
}

.steps-conclusion {
  background-color: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 16px 20px;
  border-left: 4px solid var(--color-primary);
  font-size: 14px;
  color: var(--color-text);
  box-shadow: var(--shadow-sm);
}

.guide-page .feedback-note {
  margin-top: 8px;
}

/* ---------- 深度解读页（analysis） ---------- */
.page-analysis .section-intro {
  font-size: 15px;
  color: var(--color-text-light);
  margin-bottom: 24px;
}

.analysis-panel {
  margin-bottom: 40px;
}

.analysis-item {
  display: flex;
  gap: 20px;
  background-color: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 16px;
  box-shadow: var(--shadow-sm);
  margin-bottom: 16px;
  transition: box-shadow var(--transition);
}

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

.analysis-thumb {
  width: 160px;
  height: 110px;
  flex-shrink: 0;
  border-radius: var(--radius-md);
  overflow: hidden;
}

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

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

.analysis-content h3 {
  font-size: 16px;
  margin-bottom: 6px;
}

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

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

.item-meta {
  font-size: 13px;
  color: var(--color-text-light);
  margin-bottom: 6px;
}

.analysis-content p {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.5;
  margin-bottom: 8px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.analysis-content a {
  font-size: 14px;
  font-weight: 600;
}

/* 深度解读详情段落 */
.analysis-detail {
  background-color: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 28px 32px;
  box-shadow: var(--shadow-sm);
  margin-bottom: 40px;
}

.analysis-detail h3 {
  font-size: 17px;
  margin: 20px 0 8px;
  padding-left: 10px;
  border-left: 3px solid var(--color-secondary);
}

.analysis-detail p {
  font-size: 15px;
  color: var(--color-text-light);
  line-height: 1.7;
  margin-bottom: 12px;
}

/* 相关链接 */
.related-links {
  background-color: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-sm);
}

.related-links h2 {
  font-size: 18px;
  margin-bottom: 16px;
}

.related-links ul {
  margin-bottom: 16px;
}

.related-links ul li {
  margin-bottom: 10px;
  padding-left: 16px;
  position: relative;
}

.related-links ul li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 6px;
  height: 6px;
  background-color: var(--color-primary);
  border-radius: 50%;
}

.related-links ul li a {
  font-size: 14px;
  color: var(--color-text);
}

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

.related-links .feedback-note {
  margin-top: 8px;
  background-color: var(--color-bg);
}

/* ---------- 关于本站页（about） ---------- */
.page-about .page-layout {
  max-width: 860px;
}

.content-main {
  background-color: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow-sm);
}

.content-section {
  margin-bottom: 32px;
}

.content-section:last-child {
  margin-bottom: 0;
}

.content-section .section-title {
  margin-bottom: 16px;
}

.content-section p {
  font-size: 15px;
  color: var(--color-text-light);
  line-height: 1.7;
  margin-bottom: 12px;
}

.content-section p:last-child {
  margin-bottom: 0;
}

/* 相关链接列表 */
.link-list {
  margin-top: 16px;
}

.link-list li {
  margin-bottom: 10px;
  padding-left: 16px;
  position: relative;
}

.link-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 6px;
  height: 6px;
  background-color: var(--color-secondary);
  border-radius: 50%;
}

.link-list li a {
  font-size: 14px;
  color: var(--color-text);
}

.link-list li a:hover {
  color: var(--color-primary);
}

/* 关于页图片 */
.about-figure {
  margin-top: 32px;
  border-radius: var(--radius-lg);
  overflow: hidden;
}

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

.about-figure figcaption {
  font-size: 13px;
  color: var(--color-text-light);
  text-align: center;
  padding: 10px 0;
  background-color: var(--color-bg);
}

/* ---------- 404 错误页 ---------- */
.error-main {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 64px 24px;
  flex: 1;
}

.error-content {
  text-align: center;
  background-color: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 48px 32px;
  box-shadow: var(--shadow-md);
  max-width: 560px;
}

.error-code {
  font-size: 72px;
  font-weight: 800;
  color: var(--color-primary);
  line-height: 1;
  font-family: var(--font-heading);
  margin-bottom: 16px;
}

.error-content h1 {
  font-size: 22px;
  margin-bottom: 12px;
}

.error-desc {
  font-size: 15px;
  color: var(--color-text-light);
  margin-bottom: 24px;
}

.error-btn {
  display: inline-block;
  padding: 10px 28px;
  background-color: var(--color-primary);
  color: var(--color-white);
  border-radius: var(--radius-lg);
  font-weight: 600;
  font-size: 15px;
  transition: background-color var(--transition);
}

.error-btn:hover {
  background-color: #E85555;
  color: var(--color-white);
}

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

/* 平板及以下：1024px */
@media (max-width: 1024px) {
  .page-layout {
    grid-template-columns: minmax(0, 1fr) 260px;
    gap: 24px;
  }

  .hero-layout {
    grid-template-columns: 1.4fr 1fr;
    gap: 24px;
  }

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

/* 手机端：768px */
@media (max-width: 768px) {
  /* 页头调整 */
  .header-inner {
    min-height: 56px;
    padding-top: 6px;
    padding-bottom: 6px;
  }

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

  .brand-slogan {
    display: none;
  }

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

  .site-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--color-white);
    border-bottom: 3px solid var(--color-primary);
    box-shadow: var(--shadow-md);
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
  }

  .site-header {
    position: relative;
  }

  .header-inner {
    position: relative;
    flex-wrap: wrap;
  }

  .nav-list {
    flex-direction: column;
    align-items: stretch;
    width: 100%;
    padding: 0 24px;
  }

  .nav-list li a {
    padding: 12px 8px;
    border-bottom: 1px solid var(--color-border);
    border-radius: 0;
    font-size: 16px;
  }

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

  .nav-list.is-open {
    max-height: none;
  }

  /* 首页布局 */
  .hero-layout {
    grid-template-columns: 1fr;
  }

  .hero-media {
    height: 220px;
  }

  .hero-content h1 {
    font-size: 20px;
  }

  /* 区块头部 */
  .section-head {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }

  /* 最新资讯列表 */
  .news-item {
    flex-direction: column;
    gap: 8px;
  }

  .news-meta {
    min-width: 0;
  }

  /* 专题卡片 */
  .featured-cards {
    grid-template-columns: 1fr;
  }

  /* 编辑推荐 */
  .pick-item {
    flex-direction: column;
    gap: 8px;
  }

  .pick-index {
    font-size: 24px;
  }

  /* 反馈说明 */
  .feedback-inner {
    padding: 20px;
  }

  /* 内页布局 */
  .page-layout {
    grid-template-columns: 1fr;
    padding-top: 20px;
  }

  .sidebar {
    order: 2;
  }

  /* 面包屑 */
  .breadcrumb {
    padding-top: 16px;
    margin-bottom: 16px;
  }

  .page-header {
    margin-bottom: 24px;
  }

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

  /* 热点资讯 */
  .category-group .news-item {
    flex-direction: column;
  }

  .news-thumb {
    width: 100%;
    height: 140px;
  }

  /* 专题页 */
  .page-featured .featured-grid-list {
    grid-template-columns: 1fr;
  }

  /* 指南页 */
  .guide-item {
    flex-direction: column;
    gap: 12px;
  }

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

  /* 深度解读 */
  .analysis-item {
    flex-direction: column;
  }

  .analysis-thumb {
    width: 100%;
    height: 160px;
  }

  .analysis-detail {
    padding: 20px;
  }

  /* 关于页 */
  .content-main {
    padding: 20px;
  }

  /* 页脚 */
  .footer-inner {
    grid-template-columns: 1fr;
    gap: 24px;
    padding-top: 32px;
  }

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

  /* 404 */
  .error-code {
    font-size: 56px;
  }
}

/* 小屏手机：390px */
@media (max-width: 480px) {
  .container-padding,
  .header-inner,
  .footer-inner,
  .hero-layout,
  .section-head,
  .news-list,
  .featured-cards,
  .picks-list,
  .feedback-inner,
  .page-layout,
  .error-content {
    padding-left: 16px;
    padding-right: 16px;
  }

  .hero-media {
    height: 180px;
  }

  .hero-content {
    padding: 16px;
  }

  .category-tabs {
    gap: 8px;
  }

  .category-tab {
    padding: 8px 14px;
    font-size: 13px;
  }

  .news-item {
    padding: 16px;
  }

  .news-summary {
    -webkit-line-clamp: 3;
  }

  .card-media {
    height: 160px;
  }

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

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

  .error-content {
    padding: 32px 20px;
  }

  .error-code {
    font-size: 48px;
  }
}

/* 动画增强 —— 不影响初始可见性 */
@media (prefers-reduced-motion: no-preference) {
  .category-tab,
  .featured-card,
  .news-item,
  .guide-item,
  .analysis-item {
    transition: box-shadow var(--transition), transform var(--transition),
      border-color var(--transition), color var(--transition);
  }
}