/* ==========================================================================
   91传媒 - 整站样式表
   媒体频道风：深色页头 + 频道标识色 + 交错内容模块
   ========================================================================== */

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

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

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

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  font-size: 15px;
  line-height: 1.7;
  color: #1e242c;
  background-color: #ffffff;
}

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

a {
  color: #0052d9;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

h1,
h2,
h3,
h4 {
  margin: 0 0 0.5em;
  font-weight: 700;
  line-height: 1.3;
  color: #0b111a;
}

p {
  margin: 0 0 1em;
}

ul,
ol,
dl {
  margin: 0;
  padding: 0;
}

li {
  list-style: none;
}

figure {
  margin: 0;
}

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

.site-header {
  background-color: #0b111a;
  color: #ffffff;
  position: relative;
  z-index: 100;
}

.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 68px;
}

.brand-wrap {
  display: flex;
  align-items: baseline;
  gap: 12px;
  min-width: 0;
}

.brand-link {
  color: #ffffff;
  text-decoration: none;
  display: flex;
  align-items: baseline;
  gap: 10px;
}

.brand-link:hover {
  text-decoration: none;
}

.brand-name {
  font-size: 22px;
  font-weight: 700;
  color: #ffffff;
  letter-spacing: 0.02em;
}

.brand-slogan {
  font-size: 12px;
  color: #8a8f98;
  margin: 0;
  white-space: nowrap;
}

.nav-toggle {
  display: none;
  background: none;
  border: 0;
  padding: 10px;
  cursor: pointer;
  flex-direction: column;
  gap: 5px;
}

.nav-toggle-bar {
  display: block;
  width: 22px;
  height: 2px;
  background-color: #ffffff;
}

.site-nav {
  display: block;
}

.nav-list {
  display: flex;
  gap: 4px;
  margin: 0;
  padding: 0;
}

.nav-list li {
  margin: 0;
}

.nav-list a {
  display: inline-block;
  padding: 10px 14px;
  color: #c8cdd6;
  font-size: 14px;
  border-radius: 4px;
  transition: background-color 0.2s, color 0.2s;
}

.nav-list a:hover {
  color: #ffffff;
  background-color: rgba(255, 255, 255, 0.08);
  text-decoration: none;
}

.nav-list a.is-current {
  color: #ffffff;
  background-color: #0052d9;
}

.site-main {
  min-height: 60vh;
}

.inner-main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 30px 20px 60px;
}

/* 面包屑 */
.breadcrumb {
  font-size: 13px;
  color: #8a8f98;
  margin-bottom: 18px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.breadcrumb a {
  color: #8a8f98;
}

.breadcrumb a:hover {
  color: #0052d9;
}

.breadcrumb-sep {
  color: #c8cdd6;
}

.breadcrumb-current {
  color: #1e242c;
}

/* 页面标题区 */
.page-header {
  margin-bottom: 28px;
  border-left: 4px solid #0052d9;
  padding-left: 16px;
}

.page-title {
  font-size: 28px;
  color: #0b111a;
  margin-bottom: 6px;
}

.page-description {
  font-size: 15px;
  color: #6b7280;
  margin: 0;
  max-width: 760px;
}

/* 页脚 */
.site-footer {
  background-color: #0b111a;
  color: #c8cdd6;
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 40px 20px 24px;
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 32px;
}

.footer-brand-name {
  font-size: 18px;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 8px;
}

.footer-desc {
  font-size: 13px;
  color: #8a8f98;
  margin: 0;
}

.footer-col h3 {
  font-size: 14px;
  color: #ffffff;
  margin-bottom: 12px;
}

.footer-col ul {
  margin: 0;
  padding: 0;
}

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

.footer-col a {
  color: #c8cdd6;
  font-size: 13px;
}

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

.footer-bottom {
  max-width: 1200px;
  margin: 0 auto;
  padding: 16px 20px 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-bottom p {
  margin: 0;
  font-size: 13px;
  color: #8a8f98;
  text-align: center;
}

/* ==========================================================================
   Components - 通用组件
   ========================================================================== */

/* 区块通用 */
.section-block {
  max-width: 1200px;
  margin: 0 auto;
  padding: 48px 20px;
}

.section-block h2 {
  font-size: 24px;
  margin-bottom: 8px;
}

.section-lead {
  color: #6b7280;
  margin-bottom: 24px;
  max-width: 720px;
}

/* 文本链接 */
.text-link {
  display: inline-block;
  font-size: 14px;
  font-weight: 600;
  color: #0052d9;
  padding: 6px 0;
}

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

/* 按钮 */
.btn-primary {
  display: inline-block;
  background-color: #0052d9;
  color: #ffffff;
  padding: 12px 28px;
  border-radius: 6px;
  font-size: 15px;
  font-weight: 600;
  transition: background-color 0.2s;
}

.btn-primary:hover {
  background-color: #0040a8;
  text-decoration: none;
}

/* 标签列表 */
.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 0;
  margin: 0;
}

.tag-list li {
  margin: 0;
}

.tag-list a {
  display: inline-block;
  padding: 4px 12px;
  background-color: #f0f2f5;
  color: #4b5563;
  font-size: 13px;
  border-radius: 4px;
  transition: background-color 0.2s, color 0.2s;
}

.tag-list a:hover {
  background-color: #0052d9;
  color: #ffffff;
  text-decoration: none;
}

/* 相关链接条 */
.related-links {
  max-width: 1200px;
  margin: 0 auto;
  padding: 16px 20px 48px;
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.related-links-label {
  font-size: 14px;
  color: #8a8f98;
  margin-right: 4px;
}

.related-links-item {
  display: inline-block;
  padding: 6px 14px;
  background-color: #f0f2f5;
  color: #1e242c;
  font-size: 13px;
  border-radius: 4px;
  transition: background-color 0.2s, color 0.2s;
}

.related-links-item:hover {
  background-color: #0052d9;
  color: #ffffff;
  text-decoration: none;
}

/* FAQ 折叠 */
.faq-list {
  max-width: 800px;
}

.faq-item {
  border: 1px solid #e5e7eb;
  border-radius: 6px;
  margin-bottom: 12px;
  background-color: #ffffff;
}

.faq-item summary {
  padding: 14px 18px;
  font-size: 15px;
  font-weight: 600;
  color: #1e242c;
  cursor: pointer;
  list-style: none;
  position: relative;
  padding-right: 40px;
}

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

.faq-item summary::after {
  content: "+";
  position: absolute;
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 20px;
  color: #0052d9;
}

.faq-item[open] summary::after {
  content: "-";
}

.faq-item p {
  padding: 0 18px 14px;
  margin: 0;
  color: #4b5563;
  font-size: 14px;
}

/* 步骤数字 */
.step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background-color: #0052d9;
  color: #ffffff;
  font-size: 16px;
  font-weight: 700;
  border-radius: 50%;
  flex-shrink: 0;
}

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

/* 焦点区 */
.hero-panel {
  background-color: #0b111a;
  color: #ffffff;
  padding: 48px 20px 56px;
}

.hero-content {
  max-width: 1200px;
  margin: 0 auto;
}

.hero-content h1 {
  font-size: 36px;
  color: #ffffff;
  margin-bottom: 8px;
}

.hero-desc {
  font-size: 15px;
  color: #c8cdd6;
  margin-bottom: 32px;
  max-width: 680px;
}

/* 频道导航面板 */
.channel-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.channel-card {
  display: flex;
  align-items: center;
  gap: 12px;
  background-color: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  padding: 18px 16px;
  transition: background-color 0.2s, border-color 0.2s;
}

.channel-card:hover {
  background-color: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.2);
  text-decoration: none;
}

.channel-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
}

.channel-card-film .channel-dot {
  background-color: #0052d9;
}

.channel-card-series .channel-dot {
  background-color: #f5a623;
}

.channel-card-doc .channel-dot {
  background-color: #2ecc71;
}

.channel-card-ani .channel-dot {
  background-color: #e23b3b;
}

.channel-card-var .channel-dot {
  background-color: #9b59b6;
}

.channel-card-short .channel-dot {
  background-color: #00bcd4;
}

.channel-name {
  font-size: 16px;
  font-weight: 600;
  color: #ffffff;
  display: block;
}

.channel-note {
  font-size: 12px;
  color: #8a8f98;
  display: block;
}

/* 频道导航说明 */
.nav-intro {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}

.intro-text h2 {
  font-size: 24px;
  margin-bottom: 12px;
}

.intro-text p {
  color: #4b5563;
}

.intro-media {
  border-radius: 8px;
  overflow: hidden;
}

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

.intro-media figcaption {
  padding: 8px 12px;
  font-size: 13px;
  color: #6b7280;
  background-color: #f9fafb;
}

/* 专题片单案例 */
.featured-special {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
  background-color: #f9fafb;
  margin: 0;
  max-width: none;
}

.featured-special .section-block {
  max-width: 1200px;
  margin: 0 auto;
  display: contents;
}

.featured-special {
  padding: 48px 20px;
}

.featured-special > .special-media {
  grid-column: 1;
}

.featured-special > .special-text {
  grid-column: 2;
}

.special-media {
  border-radius: 8px;
  overflow: hidden;
}

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

.special-text h2 {
  font-size: 24px;
  margin-bottom: 12px;
}

.special-text p {
  color: #4b5563;
}

/* 标签分类墙 */
.tag-wall {
  max-width: 1200px;
  margin: 0 auto;
  padding: 48px 20px;
}

.tag-wall h2 {
  font-size: 24px;
  margin-bottom: 8px;
}

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

.tag-group h3 {
  font-size: 16px;
  margin-bottom: 12px;
  color: #0b111a;
}

/* 精选片单列表 */
.special-list {
  max-width: 1200px;
  margin: 0 auto;
  padding: 48px 20px;
}

.special-list h2 {
  font-size: 24px;
  margin-bottom: 8px;
}

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

.special-item {
  border: 1px solid #e5e7eb;
  border-radius: 8px;
  overflow: hidden;
  transition: box-shadow 0.2s;
}

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

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

.special-item h3 {
  font-size: 16px;
  padding: 12px 14px 4px;
  margin: 0;
}

.special-item p {
  font-size: 13px;
  color: #6b7280;
  padding: 0 14px;
  margin-bottom: 8px;
}

.special-item .item-tag {
  display: inline-block;
  margin: 0 14px 12px;
  padding: 2px 10px;
  background-color: #f0f2f5;
  color: #4b5563;
  font-size: 12px;
  border-radius: 4px;
}

/* 观看指南入口 */
.guide-entry {
  background-color: #f9fafb;
  margin: 0;
  max-width: none;
  padding: 48px 20px;
}

.guide-entry > h2 {
  max-width: 1200px;
  margin: 0 auto 8px;
}

.guide-entry > .section-lead {
  max-width: 1200px;
  margin: 0 auto 24px;
}

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

.guide-entry > .btn-primary {
  max-width: 1200px;
  margin: 0 auto;
  display: block;
  width: fit-content;
}

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

.guide-step {
  background-color: #ffffff;
  border: 1px solid #e5e7eb;
  border-radius: 8px;
  padding: 20px;
}

.guide-step h3 {
  font-size: 16px;
  margin-bottom: 8px;
  margin-top: 12px;
}

.guide-step p {
  font-size: 14px;
  color: #4b5563;
  margin: 0;
}

/* 风险提示条 */
.risk-banner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 16px 20px;
}

.risk-banner p {
  background-color: #fdecea;
  border-left: 4px solid #e23b3b;
  padding: 14px 18px;
  margin: 0;
  font-size: 14px;
  color: #1e242c;
}

.risk-banner strong {
  color: #e23b3b;
}

.risk-banner a {
  color: #0052d9;
  font-weight: 600;
}

/* 术语索引预览 */
.glossary-preview {
  max-width: 1200px;
  margin: 0 auto;
  padding: 48px 20px;
}

.glossary-preview h2 {
  font-size: 24px;
  margin-bottom: 8px;
}

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

.glossary-item {
  display: grid;
  grid-template-columns: 120px 1fr auto;
  gap: 12px;
  align-items: baseline;
  padding: 12px 16px;
  background-color: #f9fafb;
  border-radius: 6px;
}

.glossary-item dt {
  font-weight: 600;
  color: #0b111a;
  font-size: 14px;
}

.glossary-item dd {
  margin: 0;
  font-size: 13px;
  color: #6b7280;
}

.glossary-item a {
  font-size: 13px;
  white-space: nowrap;
}

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

.layout-with-aside {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 32px;
  align-items: start;
}

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

.sidebar-related {
  background-color: #f9fafb;
  border-radius: 8px;
  padding: 20px;
}

.sidebar-related h2 {
  font-size: 16px;
  margin-bottom: 14px;
  padding-bottom: 10px;
  border-bottom: 2px solid #e5e7eb;
}

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

.sidebar-links a {
  font-size: 14px;
  color: #4b5563;
  display: inline-block;
  padding: 2px 0;
}

.sidebar-links a:hover {
  color: #0052d9;
}

/* 频道类别列表 */
.channel-category-list h2 {
  font-size: 22px;
  margin-bottom: 20px;
}

.channel-item {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 24px;
  padding: 20px 0;
  border-bottom: 1px solid #e5e7eb;
}

.channel-item:last-child {
  border-bottom: 0;
}

.channel-media figure {
  border-radius: 8px;
  overflow: hidden;
}

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

.channel-info h3 {
  font-size: 18px;
  margin-bottom: 8px;
}

.channel-info > p {
  font-size: 14px;
  color: #4b5563;
  margin-bottom: 12px;
}

/* 标签应用示例 */
.tag-usage-example {
  margin-top: 32px;
  padding: 24px;
  background-color: #f9fafb;
  border-radius: 8px;
}

.tag-usage-example h2 {
  font-size: 20px;
  margin-bottom: 10px;
}

.tag-usage-example > p {
  font-size: 14px;
  color: #4b5563;
}

.tag-demo-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 16px 0;
  padding: 0;
}

.tag-demo-list li {
  margin: 0;
}

.tag-demo-list a {
  display: inline-block;
  padding: 6px 14px;
  background-color: #ffffff;
  border: 1px solid #e5e7eb;
  border-radius: 4px;
  font-size: 13px;
  color: #1e242c;
}

.tag-demo-list a:hover {
  border-color: #0052d9;
  color: #0052d9;
  text-decoration: none;
}

/* ==========================================================================
   Pages - 专题片单页
   ========================================================================== */

.section-title {
  font-size: 22px;
  margin-bottom: 16px;
}

/* 焦点专题 */
.focus-special {
  margin-bottom: 40px;
}

.focus-special-card {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  background-color: #f9fafb;
  border-radius: 8px;
  overflow: hidden;
}

.focus-special-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  min-height: 280px;
}

.focus-special-info {
  padding: 28px;
}

.focus-special-desc {
  font-size: 15px;
  color: #4b5563;
  margin-bottom: 20px;
}

.focus-special-meta {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 20px;
}

.meta-item dt {
  font-size: 12px;
  color: #8a8f98;
  margin-bottom: 2px;
}

.meta-item dd {
  margin: 0;
  font-size: 14px;
  font-weight: 600;
  color: #1e242c;
}

/* 专题卡片网格 */
.special-grid-section {
  margin-bottom: 40px;
}

.special-card {
  border: 1px solid #e5e7eb;
  border-radius: 8px;
  overflow: hidden;
  transition: box-shadow 0.2s;
}

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

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

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

.special-card-body h3 {
  font-size: 16px;
  margin-bottom: 6px;
}

.special-card-tags {
  font-size: 12px;
  color: #0052d9;
  margin-bottom: 8px;
}

.special-card-summary {
  font-size: 13px;
  color: #6b7280;
  margin-bottom: 10px;
}

.special-card-body a {
  font-size: 13px;
  font-weight: 600;
}

/* 相关分类入口 */
.related-entry {
  margin-bottom: 40px;
}

.related-entry-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.entry-link {
  display: block;
  padding: 20px;
  background-color: #f9fafb;
  border-radius: 8px;
  border: 1px solid transparent;
  transition: border-color 0.2s;
}

.entry-link:hover {
  border-color: #0052d9;
  text-decoration: none;
}

/* ==========================================================================
   Pages - 观看指南页
   ========================================================================== */

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

.guide-section > h2 {
  font-size: 20px;
  margin-bottom: 10px;
}

.guide-section > p {
  font-size: 14px;
  color: #4b5563;
}

.guide-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 16px;
}

.guide-step {
  background-color: #f9fafb;
  border-radius: 8px;
  padding: 20px;
}

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

.guide-step p {
  font-size: 14px;
  color: #4b5563;
  margin: 0;
}

.guide-figure {
  margin-top: 20px;
  border-radius: 8px;
  overflow: hidden;
}

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

.guide-figure figcaption {
  padding: 10px 14px;
  font-size: 13px;
  color: #6b7280;
  background-color: #f9fafb;
}

/* 核验清单 */
.check-list {
  margin: 16px 0;
  padding: 0;
}

.check-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 10px 0;
  border-bottom: 1px solid #f0f2f5;
}

.check-item:last-child {
  border-bottom: 0;
}

.check-mark {
  color: #0052d9;
  font-size: 16px;
  flex-shrink: 0;
}

.check-content {
  font-size: 14px;
  color: #4b5563;
}

/* 本地进度说明 */
.progress-actions {
  margin-top: 12px;
}

.btn-clear-progress {
  display: inline-block;
  padding: 8px 20px;
  background-color: #f0f2f5;
  border: 1px solid #e5e7eb;
  border-radius: 4px;
  font-size: 14px;
  color: #4b5563;
  cursor: pointer;
  transition: background-color 0.2s;
}

.btn-clear-progress:hover {
  background-color: #e5e7eb;
}

/* ==========================================================================
   Pages - 风险提示页
   ========================================================================== */

.risk-section {
  margin-bottom: 40px;
}

.risk-section h2 {
  font-size: 20px;
  margin-bottom: 8px;
}

.risk-section .section-lead {
  font-size: 14px;
  color: #4b5563;
  margin-bottom: 16px;
}

/* 风险清单 */
.risk-checklist {
  margin: 0;
  padding: 0;
}

.risk-item {
  display: flex;
  gap: 12px;
  padding: 14px 0;
  border-bottom: 1px solid #f0f2f5;
}

.risk-item:last-child {
  border-bottom: 0;
}

.risk-item-label {
  flex-shrink: 0;
  font-weight: 600;
  color: #e23b3b;
  font-size: 14px;
  min-width: 80px;
}

.risk-item-desc {
  margin: 0;
  font-size: 14px;
  color: #4b5563;
}

/* 场景案例 */
.risk-cases-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.risk-case-card {
  border: 1px solid #e5e7eb;
  border-radius: 8px;
  overflow: hidden;
}

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

.risk-case-body {
  padding: 18px;
}

.risk-case-body h3 {
  font-size: 16px;
  margin-bottom: 8px;
}

.risk-case-context {
  font-size: 14px;
  color: #4b5563;
  margin-bottom: 8px;
}

.risk-case-point {
  font-size: 14px;
  color: #e23b3b;
  margin: 0;
  font-weight: 600;
}

/* 核验补充 */
.risk-verify-section p {
  font-size: 14px;
  color: #4b5563;
}

.risk-verify-section a {
  font-weight: 600;
}

/* ==========================================================================
   Pages - 术语索引页
   ========================================================================== */

/* 术语分组 */
.glossary-groups {
  margin-bottom: 40px;
}

.glossary-groups h2 {
  font-size: 20px;
  margin-bottom: 16px;
}

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

.glossary-group-card {
  background-color: #f9fafb;
  border-radius: 8px;
  padding: 20px;
}

.glossary-group-card h3 {
  font-size: 16px;
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 2px solid #e5e7eb;
}

.glossary-group-card ul {
  margin: 0;
  padding: 0;
}

.glossary-group-card li {
  margin-bottom: 8px;
}

.glossary-group-card a {
  font-size: 14px;
  color: #4b5563;
}

.glossary-group-card a:hover {
  color: #0052d9;
}

/* 名词表 */
.glossary-terms {
  margin-bottom: 40px;
}

.glossary-terms h2 {
  font-size: 20px;
  margin-bottom: 16px;
}

.glossary-figure {
  border-radius: 8px;
  overflow: hidden;
  margin-bottom: 20px;
}

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

.glossary-figure figcaption {
  padding: 8px 14px;
  font-size: 13px;
  color: #6b7280;
  background-color: #f9fafb;
}

.term-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.term-item {
  padding: 16px;
  background-color: #f9fafb;
  border-radius: 6px;
}

.term-item h3 {
  font-size: 15px;
  margin-bottom: 6px;
}

.term-item p {
  font-size: 13px;
  color: #4b5563;
  margin: 0;
}

.term-item a {
  font-size: 13px;
}

/* 相关跳转 */
.glossary-related {
  margin-bottom: 40px;
}

.glossary-related h2 {
  font-size: 20px;
  margin-bottom: 8px;
}

.glossary-related > p {
  font-size: 14px;
  color: #4b5563;
}

.related-links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 16px;
  padding: 0;
  max-width: none;
}

.related-link {
  display: block;
  padding: 18px;
  background-color: #f9fafb;
  border-radius: 8px;
  border: 1px solid transparent;
  transition: border-color 0.2s;
}

.related-link:hover {
  border-color: #0052d9;
  text-decoration: none;
}

.related-link-title {
  display: block;
  font-size: 15px;
  font-weight: 600;
  color: #0b111a;
  margin-bottom: 4px;
}

.related-link-desc {
  display: block;
  font-size: 13px;
  color: #6b7280;
}

/* ==========================================================================
   Pages - 问题反馈页
   ========================================================================== */

.faq-section {
  margin-bottom: 40px;
}

.faq-section h2 {
  font-size: 20px;
  margin-bottom: 16px;
}

.content-media {
  border-radius: 8px;
  overflow: hidden;
  margin-bottom: 20px;
}

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

.content-media figcaption {
  padding: 8px 14px;
  font-size: 13px;
  color: #6b7280;
  background-color: #f9fafb;
}

/* 自助排查 */
.troubleshoot-section {
  margin-bottom: 40px;
}

.troubleshoot-section h2 {
  font-size: 20px;
  margin-bottom: 8px;
}

.section-intro {
  font-size: 14px;
  color: #4b5563;
  margin-bottom: 16px;
}

.troubleshoot-steps {
  margin: 0;
  padding: 0;
}

.step-item {
  display: flex;
  gap: 16px;
  padding: 14px 0;
  border-bottom: 1px solid #f0f2f5;
}

.step-item:last-child {
  border-bottom: 0;
}

.step-content h3 {
  font-size: 15px;
  margin-bottom: 4px;
}

.step-content p {
  font-size: 14px;
  color: #4b5563;
  margin: 0;
}

/* 反馈指引 */
.feedback-guide-section {
  margin-bottom: 40px;
}

.feedback-guide-section h2 {
  font-size: 20px;
  margin-bottom: 8px;
}

.feedback-guide-section > p {
  font-size: 14px;
  color: #4b5563;
}

.feedback-channels {
  margin: 16px 0;
  padding: 0;
}

.feedback-channels li {
  margin-bottom: 10px;
}

.feedback-channels a {
  display: inline-block;
  padding: 8px 16px;
  background-color: #f0f2f5;
  border-radius: 6px;
  font-size: 14px;
  color: #1e242c;
  transition: background-color 0.2s, color 0.2s;
}

.feedback-channels a:hover {
  background-color: #0052d9;
  color: #ffffff;
  text-decoration: none;
}

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

.error-main {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 60vh;
  padding: 40px 20px;
}

.error-section {
  text-align: center;
  max-width: 480px;
}

.error-code {
  font-size: 72px;
  font-weight: 700;
  color: #e5e7eb;
  margin-bottom: 8px;
  line-height: 1;
}

.error-section h1 {
  font-size: 24px;
  margin-bottom: 12px;
}

.error-desc {
  font-size: 15px;
  color: #6b7280;
  margin-bottom: 24px;
}

.error-home-link {
  display: inline-block;
  padding: 12px 28px;
  background-color: #0052d9;
  color: #ffffff;
  border-radius: 6px;
  font-size: 15px;
  font-weight: 600;
}

.error-home-link:hover {
  background-color: #0040a8;
  text-decoration: none;
}

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

@media (max-width: 1024px) {
  .channel-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

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

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

  .channel-item {
    grid-template-columns: 200px 1fr;
  }

  .layout-with-aside {
    grid-template-columns: 1fr 260px;
    gap: 24px;
  }
}

@media (max-width: 768px) {
  /* 导航 */
  .nav-toggle {
    display: flex;
    z-index: 101;
  }

  .site-nav {
    position: absolute;
    top: 68px;
    left: 0;
    right: 0;
    background-color: #0b111a;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    display: block;
  }

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

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

  .nav-list a {
    display: block;
    padding: 12px 14px;
    font-size: 15px;
  }

  /* 页头 */
  .brand-slogan {
    display: none;
  }

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

  /* 首页 */
  .hero-panel {
    padding: 32px 16px 40px;
  }

  .hero-content h1 {
    font-size: 26px;
  }

  .channel-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
  }

  .channel-card {
    padding: 14px 12px;
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
  }

  .nav-intro {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .featured-special {
    grid-template-columns: 1fr;
    gap: 20px;
    padding: 32px 16px;
  }

  .featured-special > .special-media {
    grid-column: 1;
  }

  .featured-special > .special-text {
    grid-column: 1;
  }

  .tag-group-wrap {
    grid-template-columns: 1fr;
  }

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

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

  .glossary-item {
    grid-template-columns: 100px 1fr;
  }

  .glossary-item a {
    grid-column: 2;
  }

  /* 内页 */
  .inner-main {
    padding: 20px 16px 40px;
  }

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

  .layout-with-aside {
    grid-template-columns: 1fr;
  }

  .sidebar-related {
    margin-top: 24px;
  }

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

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

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

  .focus-special-media img {
    min-height: 200px;
  }

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

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

  .entry-link {
    padding: 14px;
  }

  .risk-cases-grid {
    grid-template-columns: 1fr;
  }

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

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

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

  .section-block {
    padding: 32px 16px;
  }

  .tag-wall,
  .special-list,
  .glossary-preview {
    padding: 32px 16px;
  }

  .guide-entry {
    padding: 32px 16px;
  }

  .risk-banner {
    padding: 12px 16px;
  }
}

@media (max-width: 480px) {
  .channel-grid {
    grid-template-columns: 1fr;
  }

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

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

  .focus-special-info {
    padding: 20px;
  }

  .special-card-media img {
    height: 200px;
  }

  .glossary-item {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .glossary-item a {
    grid-column: 1;
  }

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

  .hero-desc {
    font-size: 14px;
  }

  .channel-name {
    font-size: 15px;
  }

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

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

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

  .risk-case-media img {
    height: 160px;
  }

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

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

  .nav-list {
    padding: 8px 16px 16px;
  }

  .nav-list a {
    padding: 12px 10px;
  }

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

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