/* ==========================================================================
   Base / 基础样式
   ========================================================================== */

:root {
  --color-primary: #1a1a2e;
  --color-accent: #e94560;
  --color-secondary: #0f3460;
  --color-bg: #f5f5f5;
  --color-white: #ffffff;
  --color-text: #222831;
  --color-text-light: #5c6b7a;
  --color-border: #e0e0e0;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --container-width: 1200px;
  --radius: 8px;
  --transition: 0.2s ease;
}

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

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;
}

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

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

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

ul, ol {
  list-style: none;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

/* ==========================================================================
   Layout / 全站布局骨架
   ========================================================================== */

.site-body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  background-color: var(--color-bg);
}

.site-main {
  flex: 1 0 auto;
  width: 100%;
}

.inner-main {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 32px 20px 56px;
}

/* ==========================================================================
   Components / 页头
   ========================================================================== */

.site-header {
  background-color: var(--color-primary);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

.header-inner {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 20px;
  height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

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

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

.brand-slogan {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.72);
  white-space: nowrap;
}

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

.site-nav .nav-list a {
  display: block;
  padding: 10px 16px;
  font-size: 15px;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.85);
  border-radius: 4px;
  transition: background-color var(--transition), color var(--transition);
}

.site-nav .nav-list a:hover {
  color: var(--color-white);
  background-color: rgba(255, 255, 255, 0.08);
}

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

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 10px;
  border-radius: 4px;
  background-color: transparent;
}

.nav-toggle-bar {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--color-white);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}

/* ==========================================================================
   Components / 页脚
   ========================================================================== */

.site-footer {
  background-color: var(--color-primary);
  color: rgba(255, 255, 255, 0.8);
  margin-top: auto;
}

.footer-inner {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 48px 20px 32px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
}

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

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

.footer-col ul a {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.7);
  line-height: 1.5;
}

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

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding: 20px;
  text-align: center;
}

.footer-bottom p {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.55);
  max-width: var(--container-width);
  margin: 0 auto;
}

/* ==========================================================================
   Components / 面包屑
   ========================================================================== */

.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 14px;
  margin-bottom: 24px;
  color: var(--color-text-light);
}

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

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

.breadcrumb-sep {
  color: #9aa5b1;
}

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

/* ==========================================================================
   Components / 页面标题区（内页统一）
   ========================================================================== */

.page-header {
  margin-bottom: 36px;
}

.page-title {
  font-size: 36px;
  font-weight: 800;
  line-height: 1.25;
  color: var(--color-primary);
  margin-bottom: 12px;
}

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

/* ==========================================================================
   Components / 通用区块标题
   ========================================================================== */

.section-title {
  font-size: 28px;
  font-weight: 700;
  line-height: 1.3;
  color: var(--color-primary);
  margin-bottom: 24px;
  position: relative;
  padding-bottom: 12px;
}

.section-title::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 44px;
  height: 4px;
  background-color: var(--color-accent);
  border-radius: 2px;
}

/* ==========================================================================
   Components / 首页公告栏
   ========================================================================== */

.notice-bar {
  background-color: var(--color-secondary);
  color: var(--color-white);
  padding: 12px 0;
}

.notice-bar p {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 20px;
  font-size: 15px;
  line-height: 1.6;
}

.notice-bar strong {
  color: #ffd166;
  font-weight: 600;
  margin-right: 4px;
}

/* ==========================================================================
   Components / 首页焦点区
   ========================================================================== */

.hero-focus {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 48px 20px;
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 48px;
  align-items: center;
}

.hero-copy h1 {
  font-size: 36px;
  font-weight: 800;
  line-height: 1.25;
  color: var(--color-primary);
  margin-bottom: 16px;
}

.hero-copy p {
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-text-light);
  margin-bottom: 24px;
  max-width: 520px;
}

.btn-hero {
  display: inline-block;
  padding: 14px 32px;
  background-color: var(--color-accent);
  color: var(--color-white);
  font-size: 16px;
  font-weight: 600;
  border-radius: var(--radius);
  transition: background-color var(--transition), transform var(--transition);
}

.btn-hero:hover {
  background-color: #d63a55;
  color: var(--color-white);
  transform: translateY(-2px);
}

.hero-media img {
  width: 100%;
  height: 360px;
  object-fit: cover;
  border-radius: var(--radius);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
}

/* ==========================================================================
   Components / 首页频道标签带
   ========================================================================== */

.channel-strip {
  background-color: var(--color-white);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  padding: 32px 0;
}

.channel-strip .section-title {
  max-width: var(--container-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: 20px;
  padding-right: 20px;
}

.channel-tags {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.channel-tags a {
  display: inline-block;
  padding: 10px 22px;
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 24px;
  font-size: 15px;
  font-weight: 500;
  color: var(--color-secondary);
  transition: background-color var(--transition), color var(--transition), border-color var(--transition);
}

.channel-tags a:hover {
  background-color: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-white);
}

/* ==========================================================================
   Components / 首页最新资讯列表
   ========================================================================== */

.latest-news {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 48px 20px 24px;
}

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

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

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

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

.news-item h3 {
  font-size: 20px;
  font-weight: 600;
  line-height: 1.4;
  margin-bottom: 6px;
}

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

.news-item h3 a:hover {
  color: var(--color-accent);
}

.news-meta {
  font-size: 13px;
  color: var(--color-text-light);
  margin-bottom: 8px;
}

.news-item > p:last-child {
  font-size: 15px;
  line-height: 1.65;
  color: var(--color-text-light);
}

/* ==========================================================================
   Components / 专题卡片（首页 + 专题页共用）
   ========================================================================== */

.topic-feature {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 32px 20px;
}

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

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

.topic-card:hover {
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
  transform: translateY(-2px);
}

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

.topic-card h3 {
  font-size: 20px;
  font-weight: 600;
  padding: 16px 20px 4px;
}

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

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

.topic-card p {
  font-size: 15px;
  line-height: 1.65;
  color: var(--color-text-light);
  padding: 0 20px 20px;
}

/* ==========================================================================
   Components / 首页编辑推荐
   ========================================================================== */

.editor-picks {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 32px 20px;
}

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

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

.pick-item h3 {
  font-size: 18px;
  font-weight: 600;
  line-height: 1.4;
  margin-bottom: 8px;
}

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

.pick-item h3 a:hover {
  color: var(--color-accent);
}

.pick-item p {
  font-size: 14px;
  line-height: 1.65;
  color: var(--color-text-light);
}

/* ==========================================================================
   Components / 首页来源与反馈
   ========================================================================== */

.source-feedback {
  background-color: var(--color-white);
  border-top: 1px solid var(--color-border);
  padding: 40px 20px;
}

.source-feedback .section-title {
  max-width: var(--container-width);
  margin-left: auto;
  margin-right: auto;
}

.source-feedback p {
  max-width: var(--container-width);
  margin: 0 auto 12px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--color-text-light);
}

.source-feedback a {
  display: inline-block;
  max-width: var(--container-width);
  margin: 8px auto 0;
  font-size: 15px;
  font-weight: 500;
  color: var(--color-accent);
  text-align: center;
}

.source-feedback a:hover {
  text-decoration: underline;
}

/* ==========================================================================
   Components / 图片容器通用
   ========================================================================== */

.content-media {
  margin: 24px 0;
}

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

.content-media img {
  width: 100%;
  height: 320px;
  object-fit: cover;
  border-radius: var(--radius);
}

.content-media figcaption {
  font-size: 13px;
  color: var(--color-text-light);
  margin-top: 8px;
  line-height: 1.5;
}

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

.site-home .site-main {
  background-color: var(--color-bg);
}

/* ==========================================================================
   Pages / 频道分类页
   ========================================================================== */

.layout-shell {
  display: flex;
  align-items: flex-start;
  gap: 32px;
}

.sidebar-left {
  display: flex;
  flex-direction: row;
  gap: 32px;
}

.channel-index {
  width: 240px;
  flex-shrink: 0;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 24px 20px;
  position: sticky;
  top: 92px;
}

.h2-side {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--color-accent);
}

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

.channel-index-list a {
  display: block;
  padding: 10px 12px;
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text);
  border-radius: 4px;
  transition: background-color var(--transition), color var(--transition);
}

.channel-index-list a:hover {
  background-color: var(--color-bg);
  color: var(--color-accent);
}

.channel-preview {
  flex: 1;
  min-width: 0;
}

.channel-block {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 24px;
  margin-bottom: 24px;
}

.channel-name {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.channel-desc {
  font-size: 15px;
  line-height: 1.65;
  color: var(--color-text-light);
  margin-bottom: 16px;
}

.channel-article-list li {
  padding: 10px 0;
  border-bottom: 1px solid var(--color-border);
}

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

.channel-article-list a {
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text);
  line-height: 1.5;
  display: block;
}

.channel-article-list a:hover {
  color: var(--color-accent);
}

.channel-figure {
  margin: 24px 0;
}

.channel-figure img {
  width: 100%;
  height: 280px;
  object-fit: cover;
  border-radius: var(--radius);
}

.channel-figure figcaption {
  font-size: 13px;
  color: var(--color-text-light);
  margin-top: 8px;
}

.inner-page-links {
  background-color: var(--color-bg);
  border-radius: var(--radius);
  padding: 20px 24px;
  margin-top: 24px;
}

.inner-page-links p {
  font-size: 15px;
  line-height: 1.7;
  color: var(--color-text-light);
}

.inner-page-links a {
  display: inline-block;
  margin: 8px 16px 0 0;
  font-weight: 500;
  color: var(--color-secondary);
}

.inner-page-links a:hover {
  color: var(--color-accent);
}

/* ==========================================================================
   Pages / 内容专题页
   ========================================================================== */

.topic-grid {
  margin-bottom: 40px;
}

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

.topic-card-link {
  display: block;
  height: 100%;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: box-shadow var(--transition), transform var(--transition);
}

.topic-card-link:hover {
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
  transform: translateY(-2px);
}

.topic-media img {
  width: 100%;
  height: 180px;
  object-fit: cover;
}

.topic-content {
  padding: 20px;
}

.topic-content h3 {
  font-size: 20px;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.topic-content p {
  font-size: 15px;
  line-height: 1.65;
  color: var(--color-text-light);
  margin-bottom: 12px;
}

.topic-more {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-accent);
}

.topic-detail-links {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 24px;
  margin-bottom: 40px;
}

.topic-detail-links > p {
  font-size: 15px;
  line-height: 1.7;
  color: var(--color-text-light);
  margin-bottom: 16px;
}

.detail-link-list li {
  margin-bottom: 8px;
}

.detail-link-list a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 15px;
  font-weight: 500;
  color: var(--color-secondary);
  padding: 6px 0;
}

.detail-link-list a::before {
  content: "→";
  color: var(--color-accent);
  font-weight: 700;
}

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

.topic-detail-links > p:last-child {
  margin-top: 16px;
  margin-bottom: 0;
}

.topic-detail-links > p:last-child a {
  display: inline-block;
  margin-right: 16px;
  font-weight: 500;
  color: var(--color-secondary);
}

.topic-detail-links > p:last-child a:hover {
  color: var(--color-accent);
}

.related-links {
  margin-bottom: 40px;
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.related-item {
  display: flex;
  flex-direction: column;
  gap: 6px;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 20px;
  transition: box-shadow var(--transition), border-color var(--transition);
}

.related-item:hover {
  border-color: var(--color-accent);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
}

.related-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-primary);
}

.related-desc {
  font-size: 14px;
  line-height: 1.6;
  color: var(--color-text-light);
}

/* ==========================================================================
   Pages / 使用指南页
   ========================================================================== */

.guide-section {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 32px;
  margin-bottom: 32px;
}

.section-intro {
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-text-light);
  margin-bottom: 24px;
}

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

.step-item {
  display: flex;
  gap: 20px;
  align-items: flex-start;
}

.step-number {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-accent);
  color: var(--color-white);
  font-size: 18px;
  font-weight: 700;
  border-radius: 50%;
}

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

.step-content h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 6px;
}

.step-content p {
  font-size: 15px;
  line-height: 1.65;
  color: var(--color-text-light);
}

.step-content a {
  font-weight: 500;
  color: var(--color-secondary);
}

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

.feedback-note {
  background-color: var(--color-bg);
}

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

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

.feedback-note a:hover {
  text-decoration: underline;
}

/* ==========================================================================
   Pages / 事件时间线页
   ========================================================================== */

.timeline-module {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 32px;
  margin-bottom: 32px;
}

.timeline-module > h2 {
  font-size: 28px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 20px;
}

.timeline-module > p {
  font-size: 15px;
  line-height: 1.7;
  color: var(--color-text-light);
  margin-bottom: 24px;
}

.timeline-list {
  position: relative;
  padding-left: 28px;
}

.timeline-list::before {
  content: "";
  position: absolute;
  left: 8px;
  top: 0;
  bottom: 0;
  width: 2px;
  background-color: var(--color-border);
}

.timeline-item {
  position: relative;
  padding: 0 0 28px 20px;
}

.timeline-item::before {
  content: "";
  position: absolute;
  left: -28px;
  top: 8px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background-color: var(--color-accent);
  border: 2px solid var(--color-white);
  box-shadow: 0 0 0 2px var(--color-accent);
}

.timeline-date {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-accent);
  margin-bottom: 4px;
}

.timeline-content h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 6px;
}

.timeline-content p {
  font-size: 15px;
  line-height: 1.65;
  color: var(--color-text-light);
}

.timeline-detail-module {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 32px;
  margin-bottom: 32px;
}

.timeline-detail-module > h2 {
  font-size: 28px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 12px;
}

.timeline-detail-module > p {
  font-size: 15px;
  line-height: 1.7;
  color: var(--color-text-light);
  margin-bottom: 24px;
}

.detail-entry-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.detail-entry-card {
  display: block;
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 20px;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.detail-entry-card:hover {
  border-color: var(--color-accent);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
}

.detail-entry-card h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 6px;
}

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

.timeline-method {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 32px;
}

.timeline-method > h2 {
  font-size: 28px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 12px;
}

.timeline-method > p {
  font-size: 15px;
  line-height: 1.7;
  color: var(--color-text-light);
  margin-bottom: 20px;
}

.method-steps {
  padding-left: 20px;
  margin-bottom: 20px;
}

.method-steps li {
  font-size: 15px;
  line-height: 1.7;
  color: var(--color-text-light);
  margin-bottom: 10px;
  list-style: decimal;
}

.method-steps strong {
  color: var(--color-primary);
  font-weight: 600;
}

.timeline-method > p:last-child a {
  display: inline-block;
  margin-right: 16px;
  font-weight: 500;
  color: var(--color-secondary);
}

.timeline-method > p:last-child a:hover {
  color: var(--color-accent);
}

/* ==========================================================================
   Pages / 人物资料页
   ========================================================================== */

.people-intro-section {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 32px;
  margin-bottom: 32px;
}

.people-intro-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 32px;
  align-items: center;
}

.people-intro-text p {
  font-size: 15px;
  line-height: 1.7;
  color: var(--color-text-light);
  margin-bottom: 16px;
}

.people-intro-text p:last-child {
  margin-bottom: 0;
}

.people-intro-media img {
  width: 100%;
  height: 260px;
  object-fit: cover;
  border-radius: var(--radius);
}

.people-intro-media figcaption {
  font-size: 13px;
  color: var(--color-text-light);
  margin-top: 8px;
}

.people-list-section {
  margin-bottom: 32px;
}

.section-desc {
  font-size: 15px;
  line-height: 1.7;
  color: var(--color-text-light);
  margin-bottom: 20px;
}

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

.people-card {
  display: flex;
  gap: 16px;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 20px;
  transition: box-shadow var(--transition), border-color var(--transition);
}

.people-card:hover {
  border-color: var(--color-accent);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
}

.people-card-avatar {
  flex-shrink: 0;
  width: 72px;
  height: 72px;
}

.people-card-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 50%;
}

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

.people-card-name {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 4px;
}

.people-card-role {
  font-size: 14px;
  font-weight: 500;
  color: var(--color-accent);
  margin-bottom: 6px;
}

.people-card-bio {
  font-size: 14px;
  line-height: 1.6;
  color: var(--color-text-light);
  margin-bottom: 8px;
}

.people-card-link {
  font-size: 14px;
  font-weight: 500;
  color: var(--color-secondary);
}

.people-card-link:hover {
  color: var(--color-accent);
}

.people-detail-entry {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 32px;
  margin-bottom: 32px;
}

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

.detail-entry-item {
  display: block;
  padding: 14px 18px;
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text);
  transition: border-color var(--transition), color var(--transition);
}

.detail-entry-item:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.related-links-section {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 32px;
}

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

.related-links-section > p:last-child {
  margin-bottom: 0;
}

.related-links-section a {
  display: inline-block;
  margin-right: 16px;
  font-weight: 500;
  color: var(--color-secondary);
}

.related-links-section a:hover {
  color: var(--color-accent);
}

/* ==========================================================================
   Pages / 404 页
   ========================================================================== */

.error-main {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 80px 20px;
}

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

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

.error-section h1 {
  font-size: 32px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 16px;
}

.error-desc {
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-text-light);
  margin-bottom: 32px;
}

.error-actions {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

.btn-primary {
  display: inline-block;
  padding: 14px 32px;
  background-color: var(--color-accent);
  color: var(--color-white);
  font-size: 16px;
  font-weight: 600;
  border-radius: var(--radius);
  transition: background-color var(--transition), transform var(--transition);
}

.btn-primary:hover {
  background-color: #d63a55;
  color: var(--color-white);
  transform: translateY(-2px);
}

.btn-secondary {
  display: inline-block;
  padding: 14px 32px;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  color: var(--color-secondary);
  font-size: 16px;
  font-weight: 500;
  border-radius: var(--radius);
  transition: border-color var(--transition), color var(--transition);
}

.btn-secondary:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

/* ==========================================================================
   Pages / FAQ（使用指南页内）
   ========================================================================== */

.faq-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

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

.faq-item summary {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 20px;
  cursor: pointer;
  font-size: 16px;
  font-weight: 500;
  color: var(--color-primary);
  background-color: var(--color-white);
  transition: background-color var(--transition);
  list-style: none;
}

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

.faq-item summary::after {
  content: "+";
  font-size: 22px;
  font-weight: 400;
  color: var(--color-accent);
  transition: transform var(--transition);
}

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

.faq-item[open] summary {
  background-color: var(--color-bg);
}

.faq-item p {
  padding: 0 20px 18px;
  font-size: 15px;
  line-height: 1.65;
  color: var(--color-text-light);
}

/* ==========================================================================
   Responsive / 响应式
   ========================================================================== */

@media (max-width: 1024px) {
  .hero-focus {
    grid-template-columns: 1fr;
    gap: 24px;
  }

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

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

  .pick-item:last-child {
    grid-column: 1 / -1;
  }

  .sidebar-left {
    flex-direction: column;
  }

  .channel-index {
    width: 100%;
    position: static;
  }

  .channel-index-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
  }

  .channel-index-list li {
    margin-bottom: 0;
  }

  .channel-index-list a {
    padding: 8px 14px;
    background-color: var(--color-bg);
    border-radius: 20px;
    font-size: 14px;
  }

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

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

  .brand-slogan {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }

  .site-nav {
    position: absolute;
    top: 60px;
    left: 0;
    right: 0;
    background-color: var(--color-primary);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.2);
  }

  .site-nav .nav-list {
    display: none;
    flex-direction: column;
    padding: 12px 20px;
    gap: 0;
  }

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

  .site-nav .nav-list a {
    padding: 14px 12px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 0;
  }

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

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

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

  .footer-inner {
    grid-template-columns: 1fr;
    gap: 32px;
    padding: 40px 20px 24px;
  }

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

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

  .pick-item:last-child {
    grid-column: auto;
  }

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

  .people-intro-grid {
    grid-template-columns: 1fr;
  }

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

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

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

  .layout-shell,
  .sidebar-left {
    flex-direction: column;
  }

  .guide-section,
  .timeline-module,
  .timeline-detail-module,
  .timeline-method,
  .people-intro-section,
  .people-detail-entry,
  .related-links-section {
    padding: 24px 20px;
  }

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

  .step-number {
    width: 36px;
    height: 36px;
    font-size: 16px;
  }

  .timeline-list {
    padding-left: 20px;
  }

  .timeline-item {
    padding-left: 16px;
  }

  .timeline-item::before {
    left: -20px;
    width: 10px;
    height: 10px;
  }

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

@media (max-width: 480px) {
  .inner-main {
    padding: 24px 16px 40px;
  }

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

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

  .hero-focus {
    padding: 32px 16px;
  }

  .hero-copy h1 {
    font-size: 28px;
  }

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

  .channel-strip {
    padding: 24px 0;
  }

  .channel-tags {
    gap: 8px;
  }

  .channel-tags a {
    padding: 8px 16px;
    font-size: 14px;
  }

  .latest-news,
  .topic-feature,
  .editor-picks {
    padding-left: 16px;
    padding-right: 16px;
  }

  .news-item h3 {
    font-size: 18px;
  }

  .topic-card img {
    height: 160px;
  }

  .topic-card h3 {
    font-size: 18px;
  }

  .channel-block {
    padding: 20px 16px;
  }

  .channel-name {
    font-size: 20px;
  }

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

  .people-card {
    flex-direction: column;
    align-items: flex-start;
  }

  .people-card-avatar {
    width: 64px;
    height: 64px;
  }

  .error-actions {
    flex-direction: column;
    align-items: center;
  }

  .btn-primary,
  .btn-secondary {
    width: 100%;
    text-align: center;
  }
}