/* =========================================================
   黑料揭秘 bz8ye7t.cn — 全站样式表
   数据新闻风 · 编辑化阅读体验
   ========================================================= */

/* =========================================================
   1. BASE — 基础变量、重置、排版
   ========================================================= */
:root {
  --color-dark: #1a1a2e;
  --color-navy: #16213e;
  --color-blue: #0f3460;
  --color-accent: #e94560;
  --color-light: #f5f5f5;
  --color-white: #ffffff;
  --color-text: #2b2b33;
  --color-text-light: #6b6b76;
  --color-border: #e0e0e6;
  --color-bg-soft: #fafafa;

  --font-serif: Georgia, "Times New Roman", "Songti SC", "SimSun", serif;
  --font-sans: Helvetica, "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", Arial, sans-serif;

  --container-width: 1200px;
  --container-padding: 24px;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 8px;

  --header-height: 72px;
  --transition-speed: 0.25s;
}

*,
*::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: 1.7;
  color: var(--color-text);
  background-color: var(--color-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: var(--color-blue);
  text-decoration: none;
  transition: color var(--transition-speed) ease;
}

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

ul,
ol {
  list-style: none;
}

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

p {
  margin-bottom: 1em;
}

/* 视觉隐藏（仅供屏幕阅读器） */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

/* =========================================================
   2. LAYOUT — 全局布局骨架
   ========================================================= */
.site-body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

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

/* 首页主体 */
.home-main {
  padding-bottom: 0;
}

/* 内页主体 */
.inner-main {
  padding: 32px 0 64px;
  background-color: var(--color-bg-soft);
}

/* =========================================================
   3. HEADER — 页头与导航
   ========================================================= */
.site-header {
  background-color: var(--color-dark);
  border-bottom: 3px solid var(--color-accent);
  position: sticky;
  top: 0;
  z-index: 100;
}

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

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

.brand-name {
  font-family: var(--font-sans);
  font-size: 22px;
  font-weight: 800;
  color: var(--color-white);
  letter-spacing: 0.02em;
}

.brand-slogan {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.65);
  letter-spacing: 0.08em;
}

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

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

.nav-list li {
  margin: 0;
}

.nav-list a {
  display: block;
  padding: 8px 16px;
  font-size: 15px;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.85);
  border-radius: var(--radius-sm);
  transition: background-color var(--transition-speed) ease, color var(--transition-speed) ease;
}

.nav-list a:hover {
  color: var(--color-white);
  background-color: rgba(255, 255, 255, 0.1);
}

.nav-list a.is-current {
  color: var(--color-white);
  background-color: rgba(233, 69, 96, 0.25);
  font-weight: 600;
}

/* 移动端汉堡按钮（默认隐藏） */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 44px;
  height: 44px;
  padding: 10px;
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: var(--radius-sm);
  cursor: pointer;
  gap: 5px;
}

.nav-toggle-bar {
  display: block;
  width: 22px;
  height: 2px;
  background-color: var(--color-white);
  border-radius: 1px;
  transition: transform var(--transition-speed) ease, opacity var(--transition-speed) ease;
}

/* =========================================================
   4. FOOTER — 页脚
   ========================================================= */
.site-footer {
  background-color: var(--color-navy);
  color: rgba(255, 255, 255, 0.8);
  padding: 48px 0 24px;
  margin-top: auto;
}

.footer-inner {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
  display: grid;
  grid-template-columns: 1.2fr 2fr;
  gap: 40px;
}

.footer-brand {
  margin-bottom: 24px;
}

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

.footer-tagline {
  font-size: 14px;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.6);
  max-width: 260px;
}

.footer-links {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}

.footer-col-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-white);
  margin-bottom: 14px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

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

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

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

.footer-legal {
  grid-column: 1 / -1;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding-top: 20px;
  margin-top: 16px;
}

.footer-legal p {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.5);
  margin-bottom: 4px;
  line-height: 1.5;
}

/* =========================================================
   5. COMPONENTS — 通用组件
   ========================================================= */

/* 面包屑 */
.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
  font-size: 14px;
  margin-bottom: 20px;
  color: var(--color-text-light);
}

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

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

.breadcrumb-sep {
  color: #b0b0ba;
  font-size: 12px;
}

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

/* 页面标题区 */
.page-header {
  margin-bottom: 32px;
  padding-bottom: 24px;
  border-bottom: 2px solid var(--color-border);
}

.page-title {
  font-size: 30px;
  font-weight: 800;
  color: var(--color-dark);
  line-height: 1.25;
  margin-bottom: 10px;
}

.page-description {
  font-size: 16px;
  color: var(--color-text-light);
  line-height: 1.7;
  max-width: 720px;
  margin-bottom: 0;
}

/* 区块标题 */
.section-title {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-dark);
  margin-bottom: 12px;
  padding-left: 14px;
  border-left: 4px solid var(--color-accent);
}

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

.section-lead {
  font-size: 16px;
  color: var(--color-text-light);
  margin-bottom: 20px;
  line-height: 1.7;
}

/* 区块标题（页面内部通用组合） */
.section-heading {
  margin-bottom: 28px;
}

/* 按钮 */
.btn {
  display: inline-block;
  padding: 10px 24px;
  font-size: 15px;
  font-weight: 600;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background-color var(--transition-speed) ease, transform var(--transition-speed) ease;
}

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

.btn-primary:hover {
  background-color: #c9344f;
  color: var(--color-white);
  transform: translateY(-1px);
}

/* =========================================================
   6. HOME — 首页专属样式
   ========================================================= */

/* 焦点文章 hero */
.hero-feature {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 40px var(--container-padding) 48px;
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 40px;
  align-items: center;
  background-color: var(--color-white);
}

.hero-media {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.hero-media img {
  width: 100%;
  height: 380px;
  object-fit: cover;
}

.hero-content {
  padding: 0 8px;
}

.hero-tag {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-accent);
  background-color: rgba(233, 69, 96, 0.1);
  padding: 4px 12px;
  border-radius: var(--radius-sm);
  margin-bottom: 16px;
  letter-spacing: 0.04em;
}

.hero-title {
  font-size: 28px;
  font-weight: 800;
  line-height: 1.3;
  margin-bottom: 14px;
  color: var(--color-dark);
}

.hero-summary {
  font-family: var(--font-serif);
  font-size: 16px;
  line-height: 1.8;
  color: var(--color-text);
  margin-bottom: 24px;
}

/* 频道分类导航 */
.channel-nav-section {
  background-color: var(--color-bg-soft);
  padding: 48px 0;
}

.channel-nav-section .section-heading,
.latest-news-section .section-heading,
.topics-section .section-heading,
.editorial-section .section-heading,
.source-feedback-section .section-heading {
  max-width: var(--container-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--container-padding);
  padding-right: var(--container-padding);
}

.channel-tags {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.channel-tag {
  display: inline-block;
  padding: 8px 20px;
  font-size: 15px;
  font-weight: 500;
  color: var(--color-blue);
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: all var(--transition-speed) ease;
}

.channel-tag:hover {
  color: var(--color-white);
  background-color: var(--color-blue);
  border-color: var(--color-blue);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(15, 52, 96, 0.2);
}

/* 最新资讯 */
.latest-news-section {
  padding: 48px 0;
}

.news-list {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
  display: grid;
  gap: 0;
}

.news-item {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 16px;
  padding: 20px 0;
  border-bottom: 1px solid var(--color-border);
  transition: background-color var(--transition-speed) ease;
}

.news-item:first-child {
  padding-top: 0;
}

.news-item:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.news-item:hover {
  background-color: rgba(245, 245, 245, 0.5);
}

.news-content {
  padding-right: 16px;
}

.news-title {
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 6px;
  line-height: 1.4;
}

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

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

.news-excerpt {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.6;
  margin-bottom: 0;
}

.news-date {
  font-size: 13px;
  color: #9a9aa5;
  white-space: nowrap;
  align-self: start;
  padding-top: 4px;
}

/* 专题推荐 */
.topics-section {
  background-color: var(--color-bg-soft);
  padding: 48px 0;
}

.topics-grid {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.topic-card {
  background-color: var(--color-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
  transition: box-shadow var(--transition-speed) ease, transform var(--transition-speed) ease;
}

.topic-card:hover {
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
  transform: translateY(-2px);
}

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

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

.topic-title {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 8px;
}

.topic-title a {
  color: var(--color-dark);
}

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

.topic-excerpt {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.6;
  margin-bottom: 0;
}

/* 编辑推荐 */
.editorial-section {
  padding: 48px 0;
}

.editorial-list {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.editorial-item {
  background-color: var(--color-bg-soft);
  border-radius: var(--radius-md);
  padding: 24px;
  border-left: 4px solid var(--color-accent);
  transition: background-color var(--transition-speed) ease;
}

.editorial-item:hover {
  background-color: #f0f0f2;
}

.editorial-title {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 8px;
  line-height: 1.4;
}

.editorial-title a {
  color: var(--color-dark);
}

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

.editorial-reason {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.6;
  margin-bottom: 0;
}

/* 来源与反馈 */
.source-feedback-section {
  background-color: var(--color-navy);
  padding: 48px 0;
}

.source-feedback-section .section-title {
  color: var(--color-white);
  border-left-color: var(--color-accent);
}

.source-feedback-section .section-intro {
  color: rgba(255, 255, 255, 0.7);
}

.source-feedback-grid {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}

.source-note,
.feedback-note {
  background-color: rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-md);
  padding: 24px;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.source-note-title,
.feedback-note-title {
  font-size: 17px;
  font-weight: 600;
  color: var(--color-white);
  margin-bottom: 10px;
}

.source-note p,
.feedback-note p {
  font-size: 14px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.75);
  margin-bottom: 14px;
}

.source-note a,
.feedback-note a {
  display: inline-block;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-accent);
}

.source-note a:hover,
.feedback-note a:hover {
  color: #ff8aa0;
  text-decoration: underline;
}

/* =========================================================
   7. INNER PAGES — 内页布局骨架
   ========================================================= */

/* 双栏布局：主内容 + 侧栏 */
.page-layout {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: 40px;
  align-items: start;
}

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

/* 侧栏 */
.sidebar {
  min-width: 0;
}

.sidebar-block,
.sidebar-card {
  background-color: var(--color-white);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  padding: 20px;
  margin-bottom: 24px;
}

.sidebar-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--color-dark);
  margin-bottom: 14px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--color-border);
}

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

.sidebar-links a,
.sidebar-list a {
  font-size: 14px;
  color: var(--color-blue);
  line-height: 1.5;
  display: inline-block;
}

.sidebar-links a:hover,
.sidebar-list a:hover {
  color: var(--color-accent);
  text-decoration: underline;
}

.sidebar-card p {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.7;
  margin-bottom: 0;
}

/* =========================================================
   8. CHANNELS PAGE — 频道分类页
   ========================================================= */

.channels-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 32px;
}

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

.channel-card:hover {
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
  transform: translateY(-2px);
}

.channel-card-image {
  width: 100%;
  height: 140px;
  object-fit: cover;
}

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

.channel-card-title {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 6px;
  color: var(--color-dark);
}

.channel-card-desc {
  font-size: 13px;
  color: var(--color-text-light);
  line-height: 1.6;
  margin-bottom: 0;
}

.channel-link {
  display: inline-block;
  margin-top: 10px;
  font-size: 13px;
  font-weight: 500;
  color: var(--color-accent);
}

.channel-link:hover {
  text-decoration: underline;
}

/* 频道说明 */
.channel-notes-section {
  margin-bottom: 32px;
}

.channel-notes-text {
  font-size: 15px;
  color: var(--color-text);
  line-height: 1.8;
  background-color: var(--color-bg-soft);
  border-left: 4px solid var(--color-blue);
  padding: 16px 20px;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

/* 最新条目 */
.latest-items-section {
  margin-bottom: 16px;
}

.latest-items-list {
  display: grid;
  gap: 0;
}

.latest-item {
  padding: 16px 0;
  border-bottom: 1px solid var(--color-border);
}

.latest-item:first-child {
  padding-top: 0;
}

.latest-item:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.latest-item-title {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 4px;
  line-height: 1.4;
}

.latest-item-title a {
  color: var(--color-dark);
}

.latest-item-title a:hover {
  color: var(--color-accent);
}

.latest-item-excerpt {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.6;
  margin-bottom: 0;
}

/* =========================================================
   9. TOPICS PAGE — 内容专题页
   ========================================================= */

.topics-section .topics-grid {
  margin-bottom: 40px;
}

.topic-content {
  padding: 20px;
}

.topic-content h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 8px;
  line-height: 1.4;
}

.topic-content h3 a {
  color: var(--color-dark);
}

.topic-content h3 a:hover {
  color: var(--color-accent);
}

.topic-link {
  display: inline-block;
  margin-top: 12px;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-accent);
}

.topic-link:hover {
  text-decoration: underline;
}

/* 专题简介 */
.topics-intro {
  margin-bottom: 40px;
}

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

.intro-item {
  background-color: var(--color-white);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  padding: 24px;
}

.intro-item h3 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--color-dark);
}

.intro-item p {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.7;
  margin-bottom: 12px;
}

.related-links li {
  margin-bottom: 8px;
}

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

.related-links a:hover {
  color: var(--color-accent);
  text-decoration: underline;
}

/* 编辑精选 */
.editorial-picks {
  background-color: var(--color-bg-soft);
  border-radius: var(--radius-md);
  padding: 24px;
  margin-bottom: 40px;
}

.picks-list {
  display: grid;
  gap: 12px;
}

.pick-item {
  background-color: var(--color-white);
  border-radius: var(--radius-sm);
  padding: 14px 18px;
  border-left: 3px solid var(--color-accent);
}

.pick-item a {
  display: block;
  font-size: 15px;
  font-weight: 600;
  color: var(--color-dark);
  margin-bottom: 4px;
}

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

.pick-reason {
  font-size: 13px;
  color: var(--color-text-light);
  line-height: 1.5;
}

/* 来源反馈 */
.source-feedback {
  background-color: var(--color-navy);
  border-radius: var(--radius-md);
  padding: 24px;
}

.source-feedback h2 {
  color: var(--color-white);
  border-left-color: var(--color-accent);
}

.source-feedback p {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.75);
  line-height: 1.7;
  margin-bottom: 8px;
}

/* =========================================================
   10. GUIDE PAGE — 实用指南页
   ========================================================= */

.guide-section {
  margin-bottom: 36px;
  background-color: var(--color-white);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  padding: 28px;
}

.steps-list {
  counter-reset: step-counter;
  display: grid;
  gap: 0;
}

.step-item {
  position: relative;
  padding: 16px 0 16px 56px;
  border-bottom: 1px solid var(--color-border);
  counter-increment: step-counter;
}

.step-item:last-child {
  border-bottom: none;
}

.step-item::before {
  content: counter(step-counter);
  position: absolute;
  left: 0;
  top: 16px;
  width: 36px;
  height: 36px;
  background-color: var(--color-blue);
  color: var(--color-white);
  font-size: 15px;
  font-weight: 700;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.step-title {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 6px;
  color: var(--color-dark);
}

.step-item p {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.7;
  margin-bottom: 0;
}

/* 常见误区 */
.misconception-list {
  display: grid;
  gap: 12px;
}

.misconception-item {
  background-color: var(--color-bg-soft);
  border-radius: var(--radius-sm);
  padding: 14px 18px;
  border-left: 3px solid var(--color-accent);
}

.misconception-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-dark);
  margin-bottom: 4px;
}

.misconception-item p {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.6;
  margin-bottom: 0;
}

/* 来源核查 */
.verification-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.verification-card {
  background-color: var(--color-bg-soft);
  border-radius: var(--radius-md);
  padding: 18px;
}

.verification-card-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--color-dark);
  margin-bottom: 8px;
}

.verification-card p {
  font-size: 13px;
  color: var(--color-text-light);
  line-height: 1.6;
  margin-bottom: 0;
}

/* 相关推荐 */
.related-section {
  background-color: var(--color-white);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  padding: 24px;
}

.related-section p {
  font-size: 15px;
  line-height: 1.8;
}

.related-section p a {
  color: var(--color-blue);
  font-weight: 500;
}

.related-section p a:hover {
  color: var(--color-accent);
  text-decoration: underline;
}

/* 指南配图 */
.guide-figure {
  margin: 20px 0;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--color-border);
}

.guide-figure img {
  width: 100%;
  height: 260px;
  object-fit: cover;
}

/* =========================================================
   11. DEEP-DIVE PAGE — 深度解读页
   ========================================================= */

.content-section {
  background-color: var(--color-white);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  padding: 28px;
  margin-bottom: 28px;
}

.content-figure {
  margin: 20px 0;
  border-radius: var(--radius-md);
  overflow: hidden;
}

.content-figure img {
  width: 100%;
  height: 300px;
  object-fit: cover;
}

.content-figure figcaption {
  font-size: 13px;
  color: var(--color-text-light);
  padding: 10px 14px;
  background-color: var(--color-bg-soft);
  line-height: 1.5;
}

.content-paragraph {
  font-family: var(--font-serif);
  font-size: 16px;
  line-height: 1.9;
  color: var(--color-text);
  margin-bottom: 16px;
}

/* 原因分析网格 */
.analysis-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin: 20px 0;
}

.analysis-item {
  background-color: var(--color-bg-soft);
  border-radius: var(--radius-md);
  padding: 18px;
  border-top: 3px solid var(--color-blue);
}

.analysis-subtitle {
  font-size: 15px;
  font-weight: 700;
  color: var(--color-dark);
  margin-bottom: 8px;
}

.analysis-item p {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.6;
  margin-bottom: 0;
}

/* 影响列表 */
.impact-list {
  margin: 20px 0;
  display: grid;
  gap: 10px;
}

.impact-list li {
  font-size: 15px;
  line-height: 1.7;
  padding-left: 20px;
  position: relative;
  color: var(--color-text);
}

.impact-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 8px;
  height: 8px;
  background-color: var(--color-accent);
  border-radius: 50%;
}

.impact-list strong {
  color: var(--color-dark);
  font-weight: 600;
}

/* 来源列表 */
.source-list {
  margin: 16px 0;
  display: grid;
  gap: 8px;
}

.source-list li {
  font-size: 14px;
  color: var(--color-text-light);
  padding-left: 18px;
  position: relative;
  line-height: 1.6;
}

.source-list li::before {
  content: "※";
  position: absolute;
  left: 0;
  top: 0;
  color: var(--color-accent);
  font-size: 13px;
}

/* 相关链接 */
.related-list {
  display: grid;
  gap: 8px;
}

.related-list li {
  padding: 8px 0;
  border-bottom: 1px dashed var(--color-border);
}

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

.related-list a {
  font-size: 15px;
  color: var(--color-blue);
  font-weight: 500;
}

.related-list a:hover {
  color: var(--color-accent);
  text-decoration: underline;
}

/* =========================================================
   12. FAQ PAGE — 常见问题页
   ========================================================= */

.content-media {
  margin: 16px 0 24px;
  border-radius: var(--radius-md);
  overflow: hidden;
}

.content-media img {
  width: 100%;
  height: 220px;
  object-fit: cover;
}

.content-media figcaption {
  font-size: 13px;
  color: var(--color-text-light);
  padding: 8px 12px;
  background-color: var(--color-bg-soft);
}

.content-media-inline {
  max-width: 360px;
  margin: 0 0 20px;
}

/* FAQ 手风琴 */
.faq-list {
  display: grid;
  gap: 10px;
  margin-bottom: 20px;
}

.faq-item {
  background-color: var(--color-bg-soft);
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  overflow: hidden;
}

.faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 16px 20px;
  font-size: 15px;
  font-weight: 600;
  color: var(--color-dark);
  cursor: pointer;
  list-style: none;
  transition: background-color var(--transition-speed) ease;
}

.faq-item summary:hover {
  background-color: #f0f0f2;
}

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

.faq-item summary::after {
  content: "+";
  font-size: 20px;
  font-weight: 400;
  color: var(--color-accent);
  flex-shrink: 0;
  transition: transform var(--transition-speed) ease;
}

.faq-item[open] summary::after {
  transform: rotate(45deg);
}

.faq-answer {
  padding: 0 20px 16px;
}

.faq-answer p {
  font-size: 14px;
  color: var(--color-text);
  line-height: 1.8;
  margin-bottom: 0;
}

/* 相关推荐侧栏 */
.related-links {
  margin-top: 8px;
}

.related-links h3 {
  font-size: 16px;
  font-weight: 700;
  color: var(--color-dark);
  margin-bottom: 14px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--color-border);
}

.related-links ul {
  display: grid;
  gap: 8px;
}

.related-links ul li {
  padding: 6px 0;
  border-bottom: 1px dashed var(--color-border);
}

.related-links ul li:last-child {
  border-bottom: none;
}

.related-links ul a {
  font-size: 14px;
  color: var(--color-blue);
  line-height: 1.5;
}

.related-links ul a:hover {
  color: var(--color-accent);
  text-decoration: underline;
}

/* =========================================================
   13. 404 PAGE — 错误页
   ========================================================= */

.error-main {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: calc(100vh - var(--header-height) - 280px);
  padding: 60px 24px;
  background-color: var(--color-bg-soft);
}

.error-section {
  text-align: center;
  max-width: 560px;
  width: 100%;
}

.error-code {
  font-size: 72px;
  font-weight: 800;
  color: var(--color-accent);
  line-height: 1;
  margin-bottom: 12px;
  font-family: var(--font-sans);
}

.error-section h1 {
  font-size: 24px;
  color: var(--color-dark);
  margin-bottom: 12px;
}

.error-desc {
  font-size: 15px;
  color: var(--color-text-light);
  margin-bottom: 28px;
}

.error-back {
  display: inline-block;
  padding: 10px 28px;
  background-color: var(--color-blue);
  color: var(--color-white);
  font-size: 15px;
  font-weight: 600;
  border-radius: var(--radius-sm);
  transition: background-color var(--transition-speed) ease;
}

.error-back:hover {
  background-color: var(--color-accent);
  color: var(--color-white);
}

/* =========================================================
   14. RESPONSIVE — 响应式断点
   ========================================================= */

/* ≤ 1024px 平板 */
@media (max-width: 1024px) {
  .hero-feature {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .hero-media img {
    height: 320px;
  }

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

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

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

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

  .page-layout {
    grid-template-columns: minmax(0, 1fr) 280px;
    gap: 28px;
  }
}

/* ≤ 768px 手机 */
@media (max-width: 768px) {
  :root {
    --container-padding: 16px;
    --header-height: 60px;
  }

  /* 页头 */
  .header-inner {
    gap: 12px;
  }

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

  .brand-slogan {
    font-size: 11px;
  }

  /* 导航切换 */
  .nav-toggle {
    display: flex;
  }

  .site-nav {
    position: relative;
  }

  .nav-list {
    display: none;
    position: absolute;
    top: calc(100% + 12px);
    right: 0;
    min-width: 220px;
    background-color: var(--color-dark);
    border-radius: var(--radius-md);
    padding: 12px;
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.1);
  }

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

  .nav-list a {
    padding: 12px 16px;
    font-size: 15px;
    border-radius: var(--radius-sm);
  }

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

  .footer-links {
    grid-template-columns: 1fr 1fr;
    gap: 20px;
  }

  .footer-legal {
    grid-column: 1;
  }

  /* 首页 */
  .hero-feature {
    padding: 24px 16px 32px;
  }

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

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

  .channel-tags {
    gap: 8px;
  }

  .channel-tag {
    padding: 6px 14px;
    font-size: 14px;
  }

  .news-item {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .news-date {
    white-space: normal;
    font-size: 12px;
  }

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

  .topic-card img {
    height: 180px;
  }

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

  /* 内页 */
  .inner-main {
    padding: 20px 0 40px;
  }

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

  .sidebar {
    order: 2;
  }

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

  /* 频道页 */
  .channels-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .channel-card-image {
    height: 160px;
  }

  /* 专题页 */
  .intro-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  /* 指南页 */
  .guide-section {
    padding: 20px;
  }

  .step-item {
    padding-left: 48px;
  }

  .step-item::before {
    width: 32px;
    height: 32px;
    font-size: 14px;
  }

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

  /* 深度解读 */
  .content-section {
    padding: 20px;
  }

  .content-figure img {
    height: 200px;
  }

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

  /* FAQ */
  .faq-item summary {
    padding: 14px 16px;
    font-size: 14px;
  }

  .faq-answer {
    padding: 0 16px 14px;
  }

  /* 404 */
  .error-main {
    min-height: 60vh;
    padding: 40px 16px;
  }

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

/* ≤ 480px 小屏手机 */
@media (max-width: 480px) {
  .brand-slogan {
    display: none;
  }

  .nav-list {
    right: -8px;
  }

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

  .hero-tag {
    font-size: 12px;
    padding: 3px 10px;
  }

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

  .hero-summary {
    font-size: 15px;
  }

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

  .channel-tag {
    font-size: 13px;
    padding: 6px 12px;
  }

  .topic-content {
    padding: 16px;
  }

  .content-media-inline {
    max-width: 100%;
  }

  .content-figure img {
    height: 180px;
  }
}

/* =========================================================
   15. 动效增强（不影响初始可见性）
   ========================================================= */

@media (prefers-reduced-motion: no-preference) {
  .channel-tag,
  .topic-card,
  .channel-card {
    transition: box-shadow var(--transition-speed) ease,
                transform var(--transition-speed) ease,
                background-color var(--transition-speed) ease,
                border-color var(--transition-speed) ease,
                color var(--transition-speed) ease;
  }

  .faq-item summary::after {
    transition: transform var(--transition-speed) ease;
  }

  .nav-list a {
    transition: background-color var(--transition-speed) ease,
                color var(--transition-speed) ease;
  }
}

/* =========================================================
   16. 打印样式（可选增强）
   ========================================================= */

@media print {
  .site-header,
  .site-footer,
  .sidebar,
  .breadcrumb {
    display: none;
  }

  .site-main {
    padding: 0;
  }

  .page-layout {
    display: block;
  }

  .main-content {
    width: 100%;
  }

  body {
    font-size: 12pt;
    line-height: 1.6;
    color: #000;
  }

  a {
    color: #000;
    text-decoration: underline;
  }
}