/* ==========================================================================
   香蕉影视 · 整站样式表
   档案馆风视觉：米白纸张底、深灰文字、红棕与灰绿点缀
   ========================================================================== */

/* --------------------------------------------------------------------------
   Base — 基础变量、重置、全局字体与颜色
   -------------------------------------------------------------------------- */
:root {
  --color-bg: #f7f4ef;
  --color-text: #2b2b2b;
  --color-accent: #a15c38;
  --color-accent-soft: #c47a52;
  --color-muted: #7a8b6f;
  --color-border: #e5dfd6;
  --color-footer: #3b2e26;
  --color-footer-text: #d9d2c8;
  --color-white: #ffffff;
  --font-sans: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
  --font-mono: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
  --container-width: 1200px;
  --radius: 4px;
  --radius-card: 6px;
  --shadow-card: 0 1px 3px rgba(43, 43, 43, 0.08);
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color 0.2s ease;
}

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

ul,
ol {
  list-style: none;
}

h1,
h2,
h3,
h4 {
  font-weight: 700;
  line-height: 1.4;
}

h1 {
  font-size: 34px;
}

h2 {
  font-size: 24px;
}

h3 {
  font-size: 18px;
}

p {
  font-size: 16px;
}

/* --------------------------------------------------------------------------
   Layout — 全站骨架：页头、导航、主容器、页脚
   -------------------------------------------------------------------------- */
.site-header {
  background-color: var(--color-white);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
}

.brand-link {
  display: flex;
  flex-direction: column;
  line-height: 1.3;
}

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

.brand-tagline {
  font-size: 12px;
  color: var(--color-muted);
}

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

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

.nav-toggle-line {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--color-text);
  border-radius: 1px;
}

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

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

.nav-list li a:hover {
  background-color: rgba(161, 92, 56, 0.08);
  color: var(--color-accent);
}

.nav-list li a.is-current {
  background-color: var(--color-accent);
  color: var(--color-white);
}

.site-main {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
}

.site-footer {
  background-color: var(--color-footer);
  color: var(--color-footer-text);
  margin-top: 64px;
}

.footer-inner {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 48px 24px 32px;
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr;
  gap: 48px;
}

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

.footer-brand-desc {
  font-size: 14px;
  line-height: 1.7;
  color: rgba(217, 210, 200, 0.85);
}

.footer-nav-title,
.footer-info-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-white);
  margin-bottom: 14px;
}

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

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

.footer-nav-list li a:hover {
  color: var(--color-white);
}

.footer-info-text {
  font-size: 14px;
  line-height: 1.7;
  color: rgba(217, 210, 200, 0.85);
}

.footer-bottom {
  border-top: 1px solid rgba(217, 210, 200, 0.15);
  padding: 20px 24px;
  text-align: center;
}

.footer-bottom p {
  font-size: 13px;
  color: rgba(217, 210, 200, 0.7);
}

/* --------------------------------------------------------------------------
   Components — 通用组件：面包屑、页标题、分区标题、卡片、折叠、步骤
   -------------------------------------------------------------------------- */
.breadcrumb {
  font-size: 14px;
  color: #8a8a8a;
  padding: 24px 0 8px;
  display: flex;
  align-items: center;
  gap: 8px;
}

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

.breadcrumb a:hover {
  text-decoration: underline;
}

.breadcrumb-sep {
  color: #b0a89e;
}

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

.page-header {
  padding: 16px 0 28px;
  border-bottom: 1px solid var(--color-border);
  margin-bottom: 36px;
}

.page-title {
  font-size: 34px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 10px;
}

.page-description {
  font-size: 16px;
  color: #6b6b6b;
  max-width: 720px;
}

.section-title {
  font-size: 24px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 12px;
}

.section-desc,
.section-intro {
  font-size: 15px;
  color: #6b6b6b;
  margin-bottom: 24px;
  max-width: 720px;
}

.section-heading {
  margin-bottom: 28px;
}

/* 面包屑与页标题区之间的分隔 */
.inner-main .page-header {
  margin-bottom: 40px;
}

/* 折叠面板 */
details {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  margin-bottom: 12px;
}

details summary {
  padding: 16px 20px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  list-style: none;
}

details summary::-webkit-details-marker {
  display: none;
}

details summary::after {
  content: '+';
  font-size: 20px;
  font-weight: 400;
  color: var(--color-accent);
  flex-shrink: 0;
  transition: transform 0.2s ease;
}

details[open] summary::after {
  transform: rotate(45deg);
}

details p {
  padding: 0 20px 18px;
  font-size: 15px;
  color: #4a4a4a;
}

/* 卡片通用 */
.channel-card,
.topic-card,
.extend-card,
.entry-option,
.faq-fold-item,
.faq-item {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  transition: box-shadow 0.25s ease, transform 0.25s ease, border-color 0.25s ease;
}

.channel-card:hover,
.topic-card:hover,
.extend-card:hover,
.entry-option:hover {
  box-shadow: 0 4px 14px rgba(43, 43, 43, 0.08);
  transform: translateY(-2px);
  border-color: #d6cec2;
}

/* --------------------------------------------------------------------------
   Pages — 首页
   -------------------------------------------------------------------------- */
.home-main {
  padding-top: 0;
}

/* 首页锚点导航 */
.home-anchor-nav {
  border-bottom: 1px solid var(--color-border);
  background-color: var(--color-white);
  margin-bottom: 0;
}

.anchor-list {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  gap: 8px;
  overflow-x: auto;
}

.anchor-list li {
  flex-shrink: 0;
}

.anchor-list li a {
  display: block;
  padding: 12px 16px;
  font-size: 14px;
  color: #6b6b6b;
  border-bottom: 2px solid transparent;
}

.anchor-list li a:hover {
  color: var(--color-accent);
  border-bottom-color: var(--color-accent);
}

/* 首屏服务清单 */
.hero-service {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 48px;
  padding: 56px 0 48px;
  align-items: center;
}

.hero-media {
  border-radius: var(--radius-card);
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

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

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

.hero-title {
  font-size: 34px;
  font-weight: 700;
  line-height: 1.4;
}

.hero-desc {
  font-size: 16px;
  color: #4a4a4a;
  line-height: 1.75;
}

.hero-entry-group {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 8px;
}

.hero-entry-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 18px;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text);
  transition: border-color 0.2s ease, background-color 0.2s ease;
}

.hero-entry-link::after {
  content: '→';
  color: var(--color-accent);
  font-weight: 400;
}

.hero-entry-link:hover {
  border-color: var(--color-accent);
  background-color: rgba(161, 92, 56, 0.04);
}

/* 首页通用分区 */
.home-section {
  padding: 48px 0;
  border-top: 1px solid var(--color-border);
}

/* 频道索引带 */
.channel-card-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.channel-card {
  padding: 20px;
  position: relative;
}

.channel-no {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--color-accent);
  background-color: rgba(161, 92, 56, 0.08);
  padding: 2px 8px;
  border-radius: 2px;
  margin-bottom: 12px;
}

.channel-card img {
  width: 100%;
  height: 140px;
  object-fit: cover;
  border-radius: var(--radius);
  margin-bottom: 12px;
}

.channel-name {
  font-size: 18px;
  margin-bottom: 6px;
}

.channel-brief {
  font-size: 14px;
  color: #6b6b6b;
  margin-bottom: 12px;
}

.channel-more {
  font-size: 14px;
  font-weight: 600;
}

/* 专题片单摘要 */
.topic-card-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.topic-card {
  overflow: hidden;
}

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

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

.topic-name {
  font-size: 20px;
  margin-bottom: 8px;
}

.topic-brief {
  font-size: 14px;
  color: #6b6b6b;
  margin-bottom: 14px;
}

.topic-more {
  font-size: 14px;
  font-weight: 600;
}

/* 观看指南入口 */
.guide-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 28px;
}

.guide-step-item {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 24px 20px;
  position: relative;
}

.step-no {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 28px;
  font-weight: 700;
  color: var(--color-accent);
  line-height: 1;
  margin-bottom: 12px;
}

.step-title {
  font-size: 18px;
  margin-bottom: 8px;
}

.step-desc {
  font-size: 14px;
  color: #6b6b6b;
  line-height: 1.7;
}

.guide-entry-action {
  text-align: center;
}

.guide-entry-link {
  display: inline-block;
  padding: 14px 36px;
  background-color: var(--color-accent);
  color: var(--color-white);
  border-radius: var(--radius-card);
  font-size: 16px;
  font-weight: 600;
  transition: background-color 0.2s ease;
}

.guide-entry-link:hover {
  background-color: var(--color-accent-soft);
  color: var(--color-white);
}

/* 影视词条预览 */
.glossary-preview-list {
  display: grid;
  gap: 16px;
}

.glossary-item {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 20px 24px;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 12px 24px;
  align-items: start;
}

.glossary-term {
  font-size: 18px;
  margin-bottom: 4px;
}

.glossary-def {
  font-size: 14px;
  color: #6b6b6b;
  grid-column: 1 / -1;
}

.glossary-link {
  font-size: 14px;
  font-weight: 600;
  grid-column: 1 / -1;
}

/* 观看问答折叠 */
.faq-fold-list {
  margin-bottom: 24px;
}

.faq-fold-item {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  margin-bottom: 12px;
}

.faq-fold-item summary {
  padding: 16px 20px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  list-style: none;
}

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

.faq-fold-item summary::after {
  content: '+';
  font-size: 20px;
  color: var(--color-accent);
}

.faq-fold-item[open] summary::after {
  content: '−';
}

.faq-fold-item p {
  padding: 0 20px 18px;
  font-size: 15px;
  color: #4a4a4a;
}

.faq-fold-action {
  text-align: center;
}

.faq-fold-link {
  display: inline-block;
  padding: 12px 32px;
  border: 1px solid var(--color-accent);
  color: var(--color-accent);
  border-radius: var(--radius-card);
  font-size: 15px;
  font-weight: 600;
  transition: background-color 0.2s ease, color 0.2s ease;
}

.faq-fold-link:hover {
  background-color: var(--color-accent);
  color: var(--color-white);
}

/* --------------------------------------------------------------------------
   Pages — 内页通用
   -------------------------------------------------------------------------- */
.inner-main {
  padding-bottom: 48px;
}

/* 侧栏布局：侧栏在前，主内容在后 */
.layout-shell {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 40px;
  align-items: start;
}

/* --------------------------------------------------------------------------
   Pages — 频道分类页
   -------------------------------------------------------------------------- */
.channel-guide {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 24px;
}

.channel-guide h2 {
  font-size: 20px;
  margin-bottom: 12px;
}

.channel-guide p {
  font-size: 14px;
  color: #4a4a4a;
  margin-bottom: 12px;
  line-height: 1.7;
}

.guide-list {
  margin-bottom: 16px;
}

.guide-list li {
  font-size: 14px;
  color: #4a4a4a;
  padding: 6px 0;
  padding-left: 18px;
  position: relative;
  line-height: 1.6;
}

.guide-list li::before {
  content: '·';
  position: absolute;
  left: 4px;
  color: var(--color-accent);
  font-weight: 700;
}

.channel-guide p a {
  font-size: 14px;
  font-weight: 600;
  margin-right: 12px;
}

.channel-list {
  min-width: 0;
}

.channel-item {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 20px;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 16px;
  margin-bottom: 16px;
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}

.channel-item:hover {
  box-shadow: 0 4px 14px rgba(43, 43, 43, 0.08);
  transform: translateY(-2px);
}

.channel-thumb {
  border-radius: var(--radius);
  overflow: hidden;
  height: 120px;
}

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

.channel-info {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.channel-info h3 {
  font-size: 20px;
  margin-bottom: 6px;
}

.channel-info p {
  font-size: 14px;
  color: #6b6b6b;
  line-height: 1.7;
}

/* 频道扩展方向 */
.channel-extend {
  margin-top: 48px;
  padding-top: 40px;
  border-top: 1px solid var(--color-border);
}

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

.extend-card {
  padding: 24px;
}

.extend-card h3 {
  font-size: 18px;
  margin-bottom: 8px;
}

.extend-card p {
  font-size: 14px;
  color: #6b6b6b;
  line-height: 1.7;
}

/* 频道相关入口 */
.channel-related {
  margin-top: 40px;
  padding: 20px 24px;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
}

.channel-related p {
  font-size: 15px;
}

.channel-related p a {
  font-weight: 600;
  margin-right: 20px;
}

/* --------------------------------------------------------------------------
   Pages — 专题片单页
   -------------------------------------------------------------------------- */
.topic-tabs {
  margin-bottom: 48px;
}

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

.topic-tab {
  display: inline-block;
  padding: 10px 24px;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  font-size: 15px;
  color: var(--color-text);
  transition: border-color 0.2s ease, background-color 0.2s ease;
}

.topic-tab:hover {
  border-color: var(--color-accent);
  background-color: rgba(161, 92, 56, 0.04);
}

.topic-feature {
  display: grid;
  grid-template-columns: 1.6fr 1fr;
  gap: 32px;
  align-items: start;
  margin-bottom: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid var(--color-border);
}

.topic-feature-media {
  border-radius: var(--radius-card);
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

.topic-figure {
  position: relative;
}

.topic-image {
  width: 100%;
  height: 420px;
  object-fit: cover;
}

.topic-figure figcaption {
  font-size: 13px;
  color: #8a8a8a;
  padding: 10px 14px;
  background-color: var(--color-white);
  border-top: 1px solid var(--color-border);
}

.topic-feature-meta {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding-top: 8px;
}

.topic-number {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--color-accent);
  background-color: rgba(161, 92, 56, 0.08);
  display: inline-block;
  padding: 2px 10px;
  border-radius: 2px;
  align-self: flex-start;
}

.topic-name {
  font-size: 26px;
  font-weight: 700;
}

.topic-background {
  font-size: 15px;
  color: #4a4a4a;
  line-height: 1.75;
}

.topic-recommend {
  font-size: 14px;
  color: var(--color-muted);
  line-height: 1.7;
  padding: 14px 16px;
  background-color: rgba(122, 139, 111, 0.08);
  border-left: 3px solid var(--color-muted);
  border-radius: 0 var(--radius) var(--radius) 0;
}

/* 系列索引 */
.series-index {
  margin-bottom: 48px;
}

.series-list {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.series-item {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 12px;
  transition: box-shadow 0.2s ease;
}

.series-item:hover {
  box-shadow: 0 4px 14px rgba(43, 43, 43, 0.08);
}

.series-thumb {
  width: 100%;
  height: 120px;
  object-fit: cover;
  border-radius: var(--radius);
  margin-bottom: 10px;
}

.series-name {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 4px;
}

.series-desc {
  font-size: 13px;
  color: #8a8a8a;
  line-height: 1.6;
}

/* 前后专题导航 */
.topic-pagination {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin: 48px 0;
}

.topic-prev,
.topic-next {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 20px 24px;
  transition: border-color 0.2s ease;
}

.topic-prev:hover,
.topic-next:hover {
  border-color: var(--color-accent);
}

.topic-prev a,
.topic-next a {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text);
}

.topic-prev a::before {
  content: '← ';
  color: var(--color-accent);
}

.topic-next a::after {
  content: ' →';
  color: var(--color-accent);
}

.topic-next {
  text-align: right;
}

/* 相关栏目入口 */
.topic-related {
  margin-top: 32px;
}

.related-links {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.related-links a {
  display: inline-block;
  padding: 10px 24px;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text);
  transition: border-color 0.2s ease;
}

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

/* --------------------------------------------------------------------------
   Pages — 观看指南页
   -------------------------------------------------------------------------- */
.guide-overview {
  margin-bottom: 48px;
}

.guide-overview-content {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 32px;
  align-items: center;
}

.guide-figure {
  border-radius: var(--radius-card);
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

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

.guide-figure figcaption {
  font-size: 13px;
  color: #8a8a8a;
  padding: 10px 14px;
  background-color: var(--color-white);
  border-top: 1px solid var(--color-border);
}

.overview-text {
  font-size: 16px;
  color: #4a4a4a;
  line-height: 1.75;
}

/* 观看前准备 */
.guide-prepare {
  margin-bottom: 48px;
}

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

.prepare-step {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 24px 20px;
}

.step-number {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 26px;
  font-weight: 700;
  color: var(--color-accent);
  line-height: 1;
  margin-bottom: 12px;
}

.step-title {
  font-size: 17px;
  margin-bottom: 8px;
}

.step-desc {
  font-size: 14px;
  color: #6b6b6b;
  line-height: 1.7;
}

/* 选择观看入口 */
.guide-entry {
  margin-bottom: 48px;
}

.entry-intro {
  font-size: 15px;
  color: #6b6b6b;
  margin-bottom: 20px;
}

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

.entry-option {
  padding: 24px;
}

.entry-option-title {
  font-size: 18px;
  margin-bottom: 10px;
}

.entry-option-desc {
  font-size: 14px;
  color: #6b6b6b;
  line-height: 1.7;
}

.entry-option-desc a {
  font-weight: 600;
  font-size: 14px;
}

/* 入口核验方式 */
.guide-verify {
  margin-bottom: 48px;
}

.verify-intro {
  font-size: 15px;
  color: #6b6b6b;
  margin-bottom: 20px;
}

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

.verify-item {
  display: flex;
  gap: 16px;
  align-items: baseline;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 16px 20px;
}

.verify-item-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--color-text);
  flex-shrink: 0;
  min-width: 120px;
}

.verify-item-desc {
  font-size: 14px;
  color: #6b6b6b;
  line-height: 1.7;
}

/* 操作步骤说明 */
.guide-steps {
  margin-bottom: 48px;
}

.steps-intro {
  font-size: 15px;
  color: #6b6b6b;
  margin-bottom: 20px;
}

.steps-list {
  counter-reset: step-counter;
}

.steps-item {
  display: flex;
  gap: 20px;
  padding: 20px 0;
  border-bottom: 1px solid var(--color-border);
}

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

.steps-item-number {
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 700;
  color: var(--color-white);
  background-color: var(--color-accent);
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 2px;
}

.steps-item-content {
  flex: 1;
}

.steps-item-title {
  font-size: 17px;
  margin-bottom: 6px;
}

.steps-item-desc {
  font-size: 14px;
  color: #6b6b6b;
  line-height: 1.7;
}

/* 相关栏目 */
.guide-related {
  margin-top: 32px;
}

/* --------------------------------------------------------------------------
   Pages — 观看问答页
   -------------------------------------------------------------------------- */
.faq-lead-image {
  margin-bottom: 40px;
  border-radius: var(--radius-card);
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

.faq-lead-image img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.faq-lead-image figcaption {
  font-size: 13px;
  color: #8a8a8a;
  padding: 10px 14px;
  background-color: var(--color-white);
  border-top: 1px solid var(--color-border);
}

.faq-group {
  margin-bottom: 48px;
}

.faq-group h2 {
  font-size: 22px;
  margin-bottom: 10px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--color-border);
}

.faq-group-intro {
  font-size: 14px;
  color: #6b6b6b;
  margin-bottom: 20px;
}

/* 反馈与建议 */
.faq-feedback {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 32px;
  margin-top: 48px;
}

.faq-feedback h2 {
  font-size: 22px;
  margin-bottom: 16px;
}

.faq-feedback-content p {
  font-size: 15px;
  color: #4a4a4a;
  margin-bottom: 12px;
  line-height: 1.75;
}

.faq-feedback-content p a {
  font-weight: 600;
  margin-right: 16px;
}

/* --------------------------------------------------------------------------
   Pages — 影视词条页
   -------------------------------------------------------------------------- */
.glossary-lead-image {
  margin-bottom: 40px;
  border-radius: var(--radius-card);
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

.glossary-lead-image img {
  width: 100%;
  height: 180px;
  object-fit: cover;
}

.glossary-lead-image figcaption {
  font-size: 13px;
  color: #8a8a8a;
  padding: 10px 14px;
  background-color: var(--color-white);
  border-top: 1px solid var(--color-border);
}

/* 词条分类标签 */
.glossary-categories {
  margin-bottom: 40px;
}

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

.category-tag {
  display: inline-block;
  padding: 10px 24px;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  font-size: 14px;
  color: var(--color-text);
  transition: border-color 0.2s ease, background-color 0.2s ease;
}

.category-tag:hover {
  border-color: var(--color-accent);
  background-color: rgba(161, 92, 56, 0.04);
}

/* 词条索引主区 */
.glossary-layout {
  margin-bottom: 48px;
}

.glossary-index {
  min-width: 0;
}

.term-entry {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 20px 24px;
  margin-bottom: 16px;
  transition: box-shadow 0.2s ease;
}

.term-entry:hover {
  box-shadow: 0 4px 14px rgba(43, 43, 43, 0.08);
}

.term-number {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--color-accent);
  background-color: rgba(161, 92, 56, 0.08);
  padding: 2px 8px;
  border-radius: 2px;
  display: inline-block;
  margin-bottom: 10px;
}

.term-name {
  font-size: 19px;
  margin-bottom: 8px;
}

.term-definition {
  font-size: 14px;
  color: #4a4a4a;
  line-height: 1.7;
  margin-bottom: 10px;
}

.term-related {
  font-size: 14px;
  font-weight: 600;
}

/* 右侧常用概念 */
.glossary-aside {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 24px;
}

.aside-title {
  font-size: 20px;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--color-border);
}

.concept-item {
  padding: 14px 0;
  border-bottom: 1px solid var(--color-border);
}

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

.concept-name {
  font-size: 16px;
  margin-bottom: 4px;
}

.concept-text {
  font-size: 13px;
  color: #6b6b6b;
  line-height: 1.7;
}

/* 关联词条导航 */
.related-terms {
  margin-top: 32px;
}

/* --------------------------------------------------------------------------
   Pages — 404 页面
   -------------------------------------------------------------------------- */
.error-main {
  padding: 80px 24px;
  min-height: 60vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

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

.error-code {
  font-family: var(--font-mono);
  font-size: 72px;
  font-weight: 700;
  color: var(--color-accent);
  line-height: 1;
  margin-bottom: 16px;
}

.error-content h1 {
  font-size: 26px;
  margin-bottom: 12px;
}

.error-desc {
  font-size: 15px;
  color: #6b6b6b;
  margin-bottom: 28px;
}

.error-home-link {
  display: inline-block;
  padding: 12px 32px;
  background-color: var(--color-accent);
  color: var(--color-white);
  border-radius: var(--radius-card);
  font-size: 15px;
  font-weight: 600;
  transition: background-color 0.2s ease;
}

.error-home-link:hover {
  background-color: var(--color-accent-soft);
  color: var(--color-white);
}

/* --------------------------------------------------------------------------
   Responsive — 响应式适配
   -------------------------------------------------------------------------- */
@media (max-width: 1024px) {
  .hero-service {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .hero-media img {
    height: 280px;
  }

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

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

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

  .topic-feature {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .topic-image {
    height: 360px;
  }

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

  .guide-overview-content {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .layout-shell {
    grid-template-columns: 280px 1fr;
    gap: 28px;
  }

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

@media (max-width: 768px) {
  .header-inner {
    padding: 0 16px;
    min-height: 64px;
  }

  .brand-tagline {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }

  .nav-list {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background-color: var(--color-white);
    border-bottom: 1px solid var(--color-border);
    flex-direction: column;
    align-items: stretch;
    padding: 12px 16px;
    gap: 4px;
    box-shadow: 0 8px 16px rgba(43, 43, 43, 0.08);
  }

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

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

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

  .home-main {
    padding-top: 0;
  }

  .anchor-list {
    padding: 0 16px;
  }

  .hero-service {
    padding: 32px 0;
    gap: 24px;
  }

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

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

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

  .home-section {
    padding: 36px 0;
  }

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

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

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

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

  .glossary-def,
  .glossary-link {
    grid-column: 1;
  }

  .breadcrumb {
    padding-top: 16px;
  }

  .page-header {
    padding: 12px 0 20px;
    margin-bottom: 28px;
  }

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

  .layout-shell {
    display: flex;
    flex-direction: column;
    gap: 32px;
  }

  .channel-guide {
    order: 2;
  }

  .channel-list {
    order: 1;
  }

  .channel-item {
    grid-template-columns: 120px 1fr;
    gap: 14px;
    padding: 12px;
  }

  .channel-thumb {
    height: 90px;
  }

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

  .channel-related p a {
    display: inline-block;
    margin-bottom: 8px;
  }

  .topic-tabs-list {
    overflow-x: auto;
    flex-wrap: nowrap;
    padding-bottom: 8px;
  }

  .topic-tab {
    flex-shrink: 0;
  }

  .topic-feature {
    grid-template-columns: 1fr;
    gap: 20px;
    margin-bottom: 36px;
    padding-bottom: 36px;
  }

  .topic-image {
    height: 260px;
  }

  .topic-feature-meta {
    padding-top: 0;
  }

  .topic-name {
    font-size: 22px;
  }

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

  .series-thumb {
    height: 100px;
  }

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

  .topic-next {
    text-align: left;
  }

  .related-links {
    flex-direction: column;
    gap: 10px;
  }

  .related-links a {
    text-align: center;
  }

  .guide-overview-content {
    grid-template-columns: 1fr;
    gap: 20px;
  }

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

  .prepare-steps {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .entry-options {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .verify-item {
    flex-direction: column;
    gap: 6px;
  }

  .verify-item-title {
    min-width: 0;
  }

  .steps-item {
    gap: 14px;
  }

  .steps-item-number {
    width: 28px;
    height: 28px;
    font-size: 13px;
  }

  .faq-lead-image img {
    height: 160px;
  }

  .faq-feedback {
    padding: 24px;
  }

  .faq-feedback-content p a {
    display: inline-block;
    margin-bottom: 8px;
  }

  .glossary-lead-image img {
    height: 140px;
  }

  .category-tags {
    flex-wrap: nowrap;
    overflow-x: auto;
    padding-bottom: 8px;
  }

  .category-tag {
    flex-shrink: 0;
  }

  .glossary-aside {
    order: 2;
  }

  .glossary-index {
    order: 1;
  }

  .footer-inner {
    grid-template-columns: 1fr;
    gap: 28px;
    padding: 36px 16px 24px;
  }

  .footer-bottom {
    padding: 16px;
  }

  .error-main {
    padding: 48px 16px;
  }

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

@media (max-width: 480px) {
  .hero-media img {
    height: 180px;
  }

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

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

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

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

  .channel-thumb {
    height: 160px;
  }

  .channel-thumb img {
    height: 100%;
  }

  .topic-image {
    height: 220px;
  }

  .guide-figure img {
    height: 170px;
  }

  .faq-lead-image img {
    height: 130px;
  }

  .glossary-lead-image img {
    height: 120px;
  }

  .footer-bottom p {
    font-size: 12px;
  }
}