/* ==========================================================================
   base — 全站基础样式
   ========================================================================== */

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

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

body {
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.75;
  color: #1a1a1a;
  background-color: #ffffff;
}

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

a {
  color: #c0392b;
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: #8e2a1e;
}

ul, ol {
  list-style-position: inside;
}

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

.site-body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

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

/* ==========================================================================
   layout — 全站布局骨架
   ========================================================================== */

.site-header {
  background-color: #ffffff;
  border-bottom: 1px solid #e8e8e8;
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  height: 72px;
  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: 700;
  color: #1a1a1a;
  letter-spacing: 0.02em;
}

.brand-slogan {
  font-size: 13px;
  color: #666666;
}

.site-nav {
  display: block;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 4px;
  list-style: none;
}

.nav-list li a {
  display: block;
  padding: 8px 16px;
  font-size: 15px;
  color: #333333;
  border-radius: 4px;
  transition: background-color 0.2s ease, color 0.2s ease;
}

.nav-list li a:hover {
  color: #c0392b;
  background-color: #f5f5f5;
}

.nav-list li a.is-current {
  color: #c0392b;
  font-weight: 600;
  background-color: #fdf2f0;
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
}

.nav-toggle-line {
  display: block;
  width: 22px;
  height: 2px;
  background-color: #1a1a1a;
  border-radius: 1px;
  transition: transform 0.3s ease, opacity 0.3s ease;
}

/* ==========================================================================
   layout — 页脚
   ========================================================================== */

.site-footer {
  background-color: #1a1a1a;
  color: #cccccc;
  margin-top: 64px;
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 48px 24px 24px;
}

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

.footer-site-name {
  font-size: 20px;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 8px;
}

.footer-site-desc {
  font-size: 14px;
  color: #999999;
  max-width: 480px;
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  padding-bottom: 40px;
  border-bottom: 1px solid #333333;
}

.footer-heading {
  font-size: 15px;
  font-weight: 600;
  color: #ffffff;
  margin-bottom: 12px;
}

.footer-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer-list a {
  font-size: 14px;
  color: #999999;
}

.footer-list a:hover {
  color: #ffffff;
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-top: 24px;
}

.footer-copyright {
  font-size: 13px;
  color: #777777;
}

.footer-lang {
  font-size: 13px;
  color: #777777;
}

/* ==========================================================================
   layout — 内页统一骨架
   ========================================================================== */

.inner-main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  width: 100%;
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 24px 0 16px;
  font-size: 14px;
  color: #666666;
}

.breadcrumb a {
  color: #666666;
}

.breadcrumb a:hover {
  color: #c0392b;
}

.breadcrumb-sep {
  color: #999999;
}

.breadcrumb-current {
  color: #333333;
}

.page-header {
  padding: 8px 0 32px;
}

.page-title {
  font-size: 32px;
  font-weight: 700;
  color: #1a1a1a;
  line-height: 1.3;
  margin-bottom: 12px;
}

.page-description {
  font-size: 16px;
  color: #555555;
  max-width: 720px;
  line-height: 1.7;
}

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

.section-title {
  font-size: 24px;
  font-weight: 700;
  color: #1a1a1a;
  line-height: 1.4;
  margin-bottom: 8px;
}

.section-desc {
  font-size: 15px;
  color: #666666;
  margin-bottom: 24px;
  max-width: 640px;
}

.section-intro {
  font-size: 15px;
  color: #666666;
  margin-bottom: 24px;
  max-width: 720px;
}

.card-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 14px;
  font-weight: 600;
  color: #c0392b;
}

.card-link:hover {
  color: #8e2a1e;
}

.card-link::after {
  content: "→";
  transition: transform 0.2s ease;
}

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

.btn-text {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 15px;
  font-weight: 600;
  color: #c0392b;
  padding: 8px 0;
}

.btn-text::after {
  content: "→";
  transition: transform 0.2s ease;
}

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

/* ==========================================================================
   components — 首页快速入口
   ========================================================================== */

.quick-entry {
  background-color: #f5f5f5;
  border-bottom: 1px solid #e8e8e8;
  padding: 48px 24px;
}

.quick-entry .section-title {
  font-size: 28px;
  text-align: center;
}

.quick-entry .section-desc {
  text-align: center;
  margin-left: auto;
  margin-right: auto;
}

.quick-entry-links {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.quick-link {
  display: flex;
  align-items: center;
  gap: 12px;
  background-color: #ffffff;
  border: 1px solid #e8e8e8;
  border-radius: 6px;
  padding: 16px 20px;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.quick-link:hover {
  border-color: #c0392b;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}

.quick-link-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  flex-shrink: 0;
  font-size: 20px;
}

.quick-link-text {
  font-size: 15px;
  font-weight: 500;
  color: #1a1a1a;
}

/* ==========================================================================
   components — 首页焦点报道
   ========================================================================== */

.featured-story {
  max-width: 1200px;
  margin: 0 auto;
  padding: 56px 24px 48px;
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 48px;
  align-items: center;
}

.featured-content {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.featured-content .section-title {
  font-size: 30px;
  line-height: 1.35;
}

.featured-lead {
  font-size: 17px;
  font-weight: 600;
  color: #c0392b;
}

.featured-excerpt {
  font-size: 16px;
  color: #555555;
  line-height: 1.8;
}

.featured-media {
  position: relative;
  overflow: hidden;
  border-radius: 6px;
  background-color: #f5f5f5;
}

.featured-image {
  width: 100%;
  height: 360px;
  object-fit: cover;
  display: block;
}

/* ==========================================================================
   components — 首页频道导航带
   ========================================================================== */

.channel-strip {
  background-color: #fafafa;
  border-top: 1px solid #e8e8e8;
  border-bottom: 1px solid #e8e8e8;
  padding: 40px 24px;
}

.channel-strip .section-title {
  text-align: center;
}

.channel-tags {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
}

.channel-tag {
  display: inline-block;
  padding: 10px 24px;
  background-color: #ffffff;
  border: 1px solid #dddddd;
  border-radius: 999px;
  font-size: 15px;
  color: #333333;
  transition: all 0.2s ease;
}

.channel-tag:hover {
  color: #c0392b;
  border-color: #c0392b;
  background-color: #fdf2f0;
}

/* ==========================================================================
   components — 首页最新资讯
   ========================================================================== */

.latest-news {
  max-width: 1200px;
  margin: 0 auto;
  padding: 56px 24px 32px;
}

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

.news-item {
  padding: 24px 0;
  border-bottom: 1px solid #eeeeee;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.news-item:first-child {
  border-top: 1px solid #eeeeee;
}

.news-title {
  font-size: 18px;
  font-weight: 600;
  line-height: 1.5;
}

.news-title a {
  color: #1a1a1a;
}

.news-title a:hover {
  color: #c0392b;
}

.news-summary {
  font-size: 15px;
  color: #666666;
  line-height: 1.7;
}

.news-date {
  font-size: 13px;
  color: #999999;
}

/* ==========================================================================
   components — 首页专题推荐
   ========================================================================== */

.special-recommend {
  background-color: #fafafa;
  padding: 56px 24px;
}

.special-recommend .section-title {
  text-align: center;
}

.special-cards {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.special-cards .special-card {
  background-color: #ffffff;
  border: 1px solid #e8e8e8;
  border-radius: 6px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: box-shadow 0.2s ease;
}

.special-cards .special-card:hover {
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
}

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

.special-cards .special-card-title {
  font-size: 18px;
  font-weight: 600;
  padding: 20px 20px 0;
}

.special-cards .special-card-title a {
  color: #1a1a1a;
}

.special-cards .special-card-title a:hover {
  color: #c0392b;
}

.special-cards .special-card-desc {
  font-size: 14px;
  color: #666666;
  padding: 8px 20px 16px;
  flex: 1;
}

.special-cards .card-link {
  margin: 0 20px 20px;
}

/* ==========================================================================
   components — 首页指南入口
   ========================================================================== */

.guide-entry {
  max-width: 1200px;
  margin: 0 auto;
  padding: 56px 24px;
}

.guide-entry .section-title {
  text-align: center;
}

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

.guide-cards .guide-card {
  background-color: #f5f5f5;
  border-radius: 6px;
  padding: 32px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: background-color 0.2s ease;
}

.guide-cards .guide-card:hover {
  background-color: #fdf2f0;
}

.guide-card-title {
  font-size: 20px;
  font-weight: 600;
}

.guide-card-title a {
  color: #1a1a1a;
}

.guide-card-title a:hover {
  color: #c0392b;
}

.guide-cards .guide-card-desc {
  font-size: 15px;
  color: #666666;
  flex: 1;
}

/* ==========================================================================
   components — 频道分类页
   ========================================================================== */

.channel-section {
  padding: 24px 0 48px;
}

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

.channel-card {
  background-color: #ffffff;
  border: 1px solid #e8e8e8;
  border-radius: 6px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: box-shadow 0.2s ease;
}

.channel-card:hover {
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
}

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

.channel-card-content {
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  flex: 1;
}

.channel-card-content h3 {
  font-size: 18px;
  font-weight: 600;
  color: #1a1a1a;
}

.channel-card-content p {
  font-size: 14px;
  color: #666666;
  flex: 1;
}

.channel-card-content a {
  font-size: 14px;
  font-weight: 600;
  color: #c0392b;
}

.channel-card-content a:hover {
  color: #8e2a1e;
}

.preview-section {
  padding: 32px 0 48px;
  border-top: 1px solid #eeeeee;
}

.preview-block {
  margin-bottom: 32px;
}

.preview-block h3 {
  font-size: 18px;
  font-weight: 600;
  color: #1a1a1a;
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 2px solid #c0392b;
  display: inline-block;
}

.preview-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.preview-list li {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 16px;
  background-color: #fafafa;
  border-radius: 4px;
}

.preview-list a {
  font-size: 15px;
  color: #333333;
  flex: 1;
}

.preview-list a:hover {
  color: #c0392b;
}

.preview-list time {
  font-size: 13px;
  color: #999999;
  flex-shrink: 0;
}

.channel-note {
  background-color: #fdf2f0;
  border-left: 3px solid #c0392b;
  padding: 20px 24px;
  border-radius: 0 6px 6px 0;
  margin-bottom: 48px;
}

.channel-note p {
  font-size: 14px;
  color: #555555;
  line-height: 1.8;
}

/* ==========================================================================
   components — 专题页
   ========================================================================== */

.special-list-section {
  padding: 24px 0 48px;
}

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

.special-grid .special-card {
  background-color: #ffffff;
  border: 1px solid #e8e8e8;
  border-radius: 6px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: box-shadow 0.2s ease;
}

.special-grid .special-card:hover {
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
}

.special-media {
  overflow: hidden;
  background-color: #f5f5f5;
}

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

.special-card-body {
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  flex: 1;
}

.special-card-body h3 {
  font-size: 18px;
  font-weight: 600;
}

.special-card-body h3 a {
  color: #1a1a1a;
}

.special-card-body h3 a:hover {
  color: #c0392b;
}

.special-card-body p {
  font-size: 14px;
  color: #666666;
  flex: 1;
}

.special-card-body a {
  font-size: 14px;
  font-weight: 600;
  color: #c0392b;
}

.special-summary-section {
  padding: 32px 0 48px;
  border-top: 1px solid #eeeeee;
}

.summary-list {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.summary-item {
  background-color: #fafafa;
  border-radius: 6px;
  padding: 24px;
}

.summary-item h3 {
  font-size: 17px;
  font-weight: 600;
  color: #1a1a1a;
  margin-bottom: 8px;
}

.summary-item p {
  font-size: 15px;
  color: #555555;
  line-height: 1.7;
  margin-top: 8px;
}

.related-links {
  padding: 32px 0 48px;
  border-top: 1px solid #eeeeee;
}

.related-links ul {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.related-links li a {
  display: block;
  padding: 12px 16px;
  background-color: #fafafa;
  border-radius: 4px;
  font-size: 15px;
  color: #333333;
  transition: background-color 0.2s ease, color 0.2s ease;
}

.related-links li a:hover {
  background-color: #fdf2f0;
  color: #c0392b;
}

/* ==========================================================================
   components — 指南页
   ========================================================================== */

.guide-section {
  padding: 24px 0 48px;
}

.guide-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.guide-item {
  border: 1px solid #e8e8e8;
  border-radius: 6px;
  overflow: hidden;
  transition: box-shadow 0.2s ease;
}

.guide-item:hover {
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
}

.guide-item .guide-card {
  display: flex;
  flex-direction: column;
}

.guide-card-head {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px 24px;
  background-color: #fafafa;
  border-bottom: 1px solid #eeeeee;
}

.guide-number {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  flex-shrink: 0;
  background-color: #c0392b;
  color: #ffffff;
  font-size: 16px;
  font-weight: 700;
  border-radius: 50%;
}

.guide-title {
  font-size: 18px;
  font-weight: 600;
  color: #1a1a1a;
}

.guide-card-body {
  padding: 20px 24px;
}

.guide-card-body p {
  font-size: 15px;
  color: #555555;
  line-height: 1.7;
  margin-bottom: 8px;
}

.guide-detail-section {
  padding: 32px 0 48px;
  border-top: 1px solid #eeeeee;
}

.guide-detail-intro {
  margin-bottom: 32px;
}

.guide-detail-block {
  margin-bottom: 32px;
}

.detail-heading {
  font-size: 20px;
  font-weight: 600;
  color: #1a1a1a;
  margin-bottom: 12px;
  padding-left: 12px;
  border-left: 3px solid #c0392b;
}

.guide-detail-block > p {
  font-size: 15px;
  color: #555555;
  line-height: 1.8;
  margin-bottom: 16px;
}

.guide-figure {
  background-color: #f5f5f5;
  border-radius: 6px;
  overflow: hidden;
  margin: 16px 0;
}

.guide-figure img {
  width: 100%;
  height: 280px;
  object-fit: cover;
}

.guide-figure figcaption {
  padding: 12px 16px;
  font-size: 13px;
  color: #888888;
  background-color: #fafafa;
}

/* ==========================================================================
   components — 深度解读页
   ========================================================================== */

.interpretation-list {
  padding: 24px 0 48px;
}

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

.article-card {
  background-color: #ffffff;
  border: 1px solid #e8e8e8;
  border-radius: 6px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: box-shadow 0.2s ease;
}

.article-card:hover {
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
}

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

.article-card-content {
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  flex: 1;
}

.article-card-title {
  font-size: 17px;
  font-weight: 600;
  line-height: 1.5;
}

.article-card-title a {
  color: #1a1a1a;
}

.article-card-title a:hover {
  color: #c0392b;
}

.article-card-excerpt {
  font-size: 14px;
  color: #666666;
  flex: 1;
}

.article-card-link {
  font-size: 14px;
  font-weight: 600;
  color: #c0392b;
}

.article-card-link:hover {
  color: #8e2a1e;
}

.interpretation-article {
  max-width: 760px;
  padding: 40px 0 48px;
  border-top: 1px solid #eeeeee;
}

.article-main-title {
  font-size: 28px;
  font-weight: 700;
  color: #1a1a1a;
  line-height: 1.4;
  margin-bottom: 16px;
}

.article-lede {
  font-size: 17px;
  font-weight: 500;
  color: #444444;
  line-height: 1.8;
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 1px solid #eeeeee;
}

.article-subtitle {
  font-size: 20px;
  font-weight: 600;
  color: #1a1a1a;
  margin: 32px 0 12px;
}

.interpretation-article p {
  font-size: 16px;
  color: #444444;
  line-height: 1.85;
  margin-bottom: 16px;
}

.article-figure {
  background-color: #f5f5f5;
  border-radius: 6px;
  overflow: hidden;
  margin: 24px 0;
}

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

.article-figure figcaption {
  padding: 12px 16px;
  font-size: 13px;
  color: #888888;
  background-color: #fafafa;
}

.timeline-analysis {
  background-color: #fafafa;
  border-top: 1px solid #eeeeee;
  padding: 48px 0;
}

.timeline-header {
  margin-bottom: 32px;
}

.timeline-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.timeline-item {
  background-color: #ffffff;
  border: 1px solid #e8e8e8;
  border-radius: 6px;
  padding: 24px;
  position: relative;
}

.timeline-item::before {
  content: "";
  position: absolute;
  top: 0;
  left: 24px;
  right: 24px;
  height: 3px;
  background-color: #c0392b;
  border-radius: 3px 3px 0 0;
}

.timeline-item-title {
  font-size: 16px;
  font-weight: 600;
  color: #1a1a1a;
  margin-bottom: 10px;
}

.timeline-item-text {
  font-size: 14px;
  color: #666666;
  line-height: 1.7;
}

.communication-analysis {
  padding: 48px 0;
}

.communication-inner {
  max-width: 760px;
}

.communication-intro {
  font-size: 15px;
  color: #555555;
  margin-bottom: 24px;
}

.communication-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 24px;
}

.communication-list li {
  background-color: #fafafa;
  border-radius: 6px;
  padding: 16px 20px;
  font-size: 15px;
  color: #444444;
  line-height: 1.7;
  display: flex;
  gap: 8px;
}

.communication-list li strong {
  color: #c0392b;
  flex-shrink: 0;
}

.communication-conclusion {
  font-size: 15px;
  color: #555555;
  line-height: 1.8;
  padding: 16px 20px;
  background-color: #fdf2f0;
  border-radius: 6px;
}

.related-articles {
  padding: 48px 0;
  border-top: 1px solid #eeeeee;
}

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

.related-card {
  background-color: #fafafa;
  border-radius: 6px;
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  transition: background-color 0.2s ease;
}

.related-card:hover {
  background-color: #fdf2f0;
}

.related-card-title {
  font-size: 16px;
  font-weight: 600;
  color: #1a1a1a;
  line-height: 1.5;
}

.related-card-excerpt {
  font-size: 14px;
  color: #666666;
  line-height: 1.6;
}

/* ==========================================================================
   components — FAQ 页
   ========================================================================== */

.faq-layout {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 48px;
  padding: 24px 0 48px;
  align-items: start;
}

.faq-section {
  min-width: 0;
}

.content-media-inline {
  background-color: #f5f5f5;
  border-radius: 6px;
  overflow: hidden;
  margin-bottom: 24px;
}

.content-media-inline img {
  width: 100%;
  height: 240px;
  object-fit: cover;
}

.content-media-inline figcaption {
  padding: 10px 16px;
  font-size: 13px;
  color: #888888;
  background-color: #fafafa;
}

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

.faq-item {
  border: 1px solid #e8e8e8;
  border-radius: 6px;
  background-color: #ffffff;
  overflow: hidden;
  transition: border-color 0.2s ease;
}

.faq-item:hover {
  border-color: #c0392b;
}

.faq-item[open] {
  border-color: #c0392b;
}

.faq-question {
  padding: 18px 24px;
  font-size: 16px;
  font-weight: 600;
  color: #1a1a1a;
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

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

.faq-question::after {
  content: "+";
  font-size: 22px;
  font-weight: 400;
  color: #c0392b;
  flex-shrink: 0;
  transition: transform 0.2s ease;
}

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

.faq-answer {
  padding: 0 24px 20px;
  font-size: 15px;
  color: #555555;
  line-height: 1.8;
}

.feedback-section {
  padding: 32px 0;
  border-top: 1px solid #eeeeee;
}

.feedback-content p {
  font-size: 15px;
  color: #555555;
  line-height: 1.8;
  margin-bottom: 16px;
}

.feedback-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 16px;
}

.feedback-list li {
  padding: 12px 16px;
  background-color: #fafafa;
  border-radius: 4px;
  font-size: 15px;
  color: #444444;
  line-height: 1.7;
}

.feedback-note {
  font-size: 14px;
  color: #888888;
}

.faq-aside {
  display: flex;
  flex-direction: column;
  gap: 24px;
  position: sticky;
  top: 96px;
}

.aside-card {
  background-color: #fafafa;
  border-radius: 6px;
  padding: 24px;
}

.aside-title {
  font-size: 16px;
  font-weight: 600;
  color: #1a1a1a;
  margin-bottom: 14px;
  padding-bottom: 8px;
  border-bottom: 2px solid #c0392b;
  display: inline-block;
}

.aside-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.aside-list li a {
  font-size: 14px;
  color: #555555;
  display: block;
  padding: 6px 0;
  transition: color 0.2s ease;
}

.aside-list li a:hover {
  color: #c0392b;
}

/* ==========================================================================
   components — 404 页
   ========================================================================== */

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

.error-section {
  text-align: center;
  max-width: 520px;
}

.error-code {
  font-size: 96px;
  font-weight: 700;
  color: #c0392b;
  line-height: 1;
  margin-bottom: 16px;
}

.error-title {
  font-size: 28px;
  font-weight: 700;
  color: #1a1a1a;
  margin-bottom: 16px;
}

.error-desc {
  font-size: 16px;
  color: #666666;
  line-height: 1.7;
  margin-bottom: 32px;
}

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

.error-back-btn {
  display: inline-block;
  padding: 12px 32px;
  background-color: #c0392b;
  color: #ffffff;
  font-size: 15px;
  font-weight: 600;
  border-radius: 4px;
  transition: background-color 0.2s ease;
}

.error-back-btn:hover {
  background-color: #8e2a1e;
  color: #ffffff;
}

.error-faq-link {
  display: inline-block;
  padding: 12px 32px;
  border: 1px solid #c0392b;
  color: #c0392b;
  font-size: 15px;
  font-weight: 600;
  border-radius: 4px;
  transition: all 0.2s ease;
}

.error-faq-link:hover {
  background-color: #fdf2f0;
  color: #8e2a1e;
}

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

@media (max-width: 1024px) {
  .header-inner {
    padding: 0 20px;
  }

  .inner-main {
    padding: 0 20px;
  }

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

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

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

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

  .faq-layout {
    grid-template-columns: 1fr 280px;
    gap: 32px;
  }

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

@media (max-width: 768px) {
  .header-inner {
    height: 64px;
  }

  .nav-toggle {
    display: flex;
  }

  .site-nav {
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background-color: #ffffff;
    border-bottom: 1px solid #e8e8e8;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
  }

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

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

  .nav-list li a {
    padding: 14px 24px;
    border-radius: 0;
    border-bottom: 1px solid #f5f5f5;
  }

  .brand-slogan {
    display: none;
  }

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

  .featured-story {
    grid-template-columns: 1fr;
    gap: 24px;
    padding: 40px 20px;
  }

  .featured-image {
    height: 280px;
  }

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

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

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

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

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

  .faq-aside {
    position: static;
  }

  .page-title {
    font-size: 26px;
  }

  .quick-entry {
    padding: 32px 20px;
  }

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

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

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }
}

@media (max-width: 480px) {
  .header-inner {
    padding: 0 16px;
  }

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

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

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

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

  .featured-story {
    padding: 32px 16px;
  }

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

  .featured-image {
    height: 220px;
  }

  .news-item {
    padding: 20px 0;
  }

  .news-title {
    font-size: 16px;
  }

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

  .guide-cards .guide-card {
    padding: 24px 20px;
  }

  .channel-tag {
    padding: 8px 18px;
    font-size: 14px;
  }

  .channel-card img {
    height: 140px;
  }

  .preview-list li {
    flex-direction: column;
    gap: 4px;
  }

  .article-card-grid {
    grid-template-columns: 1fr;
  }

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

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

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

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

  .footer-inner {
    padding: 32px 16px 20px;
  }

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

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

  .featured-lead {
    font-size: 15px;
  }

  .featured-excerpt {
    font-size: 15px;
  }

  .guide-card-head {
    padding: 16px;
  }

  .guide-card-body {
    padding: 16px;
  }

  .faq-question {
    padding: 16px;
    font-size: 15px;
  }

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

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

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

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

  .error-back-btn,
  .error-faq-link {
    width: 100%;
    text-align: center;
  }
}