/* ==========================================================================
   西瓜短剧 · 全站样式表
   会议资料风：暖白纸张底、深墨正文、橘红主题色、米褐辅助分隔
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Base —— 重置、变量、全局基础
   -------------------------------------------------------------------------- */
:root {
  --color-primary: #C7452E;
  --color-primary-dark: #A83A26;
  --color-bg: #FBF8F2;
  --color-ink: #362A26;
  --color-ink-soft: #5C4F4A;
  --color-muted: #7A6B64;
  --color-beige: #DBC6AF;
  --color-beige-light: #F1E7DA;
  --color-accent: #2B6B62;
  --color-white: #FFFFFF;
  --font-sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --container-width: 1200px;
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 8px;
  --shadow-panel: 0 1px 2px rgba(54, 42, 38, 0.06), 0 4px 16px rgba(54, 42, 38, 0.05);
  --border-color: #E0D5C6;
}

*,
*::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: var(--font-sans);
  font-size: 16px;
  line-height: 1.8;
  color: var(--color-ink);
  background-color: var(--color-bg);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

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

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

a:hover {
  color: var(--color-primary-dark);
}

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

h1,
h2,
h3,
h4 {
  line-height: 1.35;
  color: var(--color-ink);
  font-weight: 700;
}

h1 {
  font-size: 2.2rem;
  letter-spacing: 0.01em;
}

h2 {
  font-size: 1.5rem;
}

h3 {
  font-size: 1.125rem;
}

p {
  margin-bottom: 0.75rem;
}

figure {
  margin: 0;
}

table {
  border-collapse: collapse;
  width: 100%;
}

/* 焦点可见性 */
a:focus-visible,
button:focus-visible,
summary:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* --------------------------------------------------------------------------
   2. Layout —— 全站统一页头、页脚、主容器、面包屑、页面标题区
   -------------------------------------------------------------------------- */

/* 站点页头 */
.site-header {
  background-color: var(--color-white);
  border-bottom: 1px solid var(--border-color);
  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: 64px;
  gap: 16px;
}

.brand-link {
  display: inline-flex;
  align-items: center;
  flex-shrink: 0;
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--color-ink);
  letter-spacing: 0.02em;
}

.brand-link:hover {
  color: var(--color-primary);
}

.brand-link .brand-name {
  position: relative;
}

.brand-link .brand-name::before {
  content: "";
  display: inline-block;
  width: 8px;
  height: 8px;
  background-color: var(--color-primary);
  border-radius: 2px;
  margin-right: 8px;
  vertical-align: 2px;
}

/* 主导航 */
.site-nav {
  display: block;
}

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

.nav-list li {
  margin: 0;
}

.nav-list a {
  display: inline-block;
  padding: 8px 14px;
  color: var(--color-ink-soft);
  font-size: 0.9375rem;
  font-weight: 500;
  border-radius: var(--radius-sm);
  border-bottom: 2px solid transparent;
  transition: color 0.2s ease, border-color 0.2s ease, background-color 0.2s ease;
}

.nav-list a:hover {
  color: var(--color-primary);
  background-color: rgba(199, 69, 46, 0.05);
}

.nav-list a.is-current {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
  font-weight: 600;
}

/* 汉堡按钮（桌面隐藏） */
.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  cursor: pointer;
  min-height: 44px;
  min-width: 44px;
  align-items: center;
  justify-content: center;
}

.nav-toggle-icon {
  display: block;
  width: 18px;
  height: 2px;
  background-color: var(--color-ink);
  position: relative;
  transition: background-color 0.2s ease;
}

.nav-toggle-icon::before,
.nav-toggle-icon::after {
  content: "";
  position: absolute;
  left: 0;
  width: 18px;
  height: 2px;
  background-color: var(--color-ink);
  transition: transform 0.2s ease;
}

.nav-toggle-icon::before {
  top: -6px;
}

.nav-toggle-icon::after {
  top: 6px;
}

/* 页头展开态 */
.nav-toggle[aria-expanded="true"] .nav-toggle-icon {
  background-color: transparent;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-icon::before {
  transform: translateY(6px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-icon::after {
  transform: translateY(-6px) rotate(-45deg);
}

/* 站点主内容 */
.site-main {
  flex: 1 0 auto;
  width: 100%;
}

/* 首页主容器 */
.home-main {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px 64px;
}

/* 内页共用骨架 */
.site-inner {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px 64px;
}

.inner-main {
  max-width: 100%;
}

/* 面包屑 */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 18px 0 8px;
  font-size: 0.875rem;
  color: var(--color-muted);
}

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

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

.breadcrumb .breadcrumb-sep {
  color: var(--color-beige);
  user-select: none;
}

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

/* 内页页面标题区 */
.page-header {
  padding: 24px 0 28px;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 32px;
}

.page-title {
  font-size: 2.2rem;
  line-height: 1.3;
  margin-bottom: 10px;
}

.page-title::before {
  content: "";
  display: inline-block;
  width: 10px;
  height: 28px;
  background-color: var(--color-primary);
  border-radius: 2px;
  margin-right: 14px;
  vertical-align: -4px;
}

.page-description {
  font-size: 1.0625rem;
  color: var(--color-ink-soft);
  max-width: 720px;
  line-height: 1.8;
  margin-bottom: 0;
}

/* 分区标题通用 */
.section-title {
  font-size: 1.5rem;
  margin-bottom: 12px;
  position: relative;
  padding-bottom: 8px;
}

.section-title::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 36px;
  height: 3px;
  background-color: var(--color-primary);
  border-radius: 2px;
}

.section-intro,
.section-lead {
  color: var(--color-ink-soft);
  margin-bottom: 24px;
  max-width: 760px;
}

/* 页脚 */
.site-footer {
  background-color: var(--color-ink);
  color: rgba(255, 255, 255, 0.82);
  margin-top: auto;
}

.footer-inner {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 48px 24px 24px;
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr;
  gap: 40px;
}

.footer-col p {
  color: rgba(255, 255, 255, 0.72);
  font-size: 0.9375rem;
}

.footer-brand {
  font-size: 1.375rem !important;
  font-weight: 700;
  color: #FFF !important;
  margin-bottom: 8px;
}

.footer-tagline {
  font-size: 0.9375rem;
  line-height: 1.7;
}

.footer-heading {
  color: #FFF;
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 12px;
  padding-bottom: 6px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.15);
}

.footer-links {
  list-style: none;
}

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

.footer-links a {
  color: rgba(255, 255, 255, 0.72);
  font-size: 0.9375rem;
}

.footer-links a:hover {
  color: #FFF;
}

.footer-copyright {
  grid-column: 1 / -1;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding-top: 18px;
  margin-top: 20px;
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.5);
  text-align: center;
}

/* --------------------------------------------------------------------------
   3. Components —— 通用组件与模块
   -------------------------------------------------------------------------- */

/* 折叠问答（原生 details） */
.faq-item {
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  background-color: var(--color-white);
  margin-bottom: 10px;
  overflow: hidden;
  transition: box-shadow 0.2s ease;
}

.faq-item:hover {
  box-shadow: var(--shadow-panel);
}

.faq-item summary {
  cursor: pointer;
  padding: 16px 20px;
  font-weight: 600;
  font-size: 1rem;
  color: var(--color-ink);
  list-style: none;
  position: relative;
  padding-right: 44px;
  line-height: 1.5;
  min-height: 44px;
  display: flex;
  align-items: center;
  transition: background-color 0.2s ease;
}

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

.faq-item summary::after {
  content: "+";
  position: absolute;
  right: 18px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.5rem;
  font-weight: 400;
  color: var(--color-primary);
  line-height: 1;
  transition: transform 0.2s ease;
}

.faq-item[open] summary::after {
  transform: translateY(-50%) rotate(45deg);
}

.faq-item[open] summary {
  border-bottom: 1px solid var(--border-color);
  background-color: rgba(199, 69, 46, 0.03);
}

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

.faq-answer p {
  color: var(--color-ink-soft);
  font-size: 0.9375rem;
  margin-bottom: 8px;
  line-height: 1.8;
}

.faq-answer p:last-child {
  margin-bottom: 0;
}

.faq-extend a {
  font-size: 0.875rem;
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.faq-extend a::after {
  content: "→";
  transition: transform 0.2s ease;
}

.faq-extend a:hover::after {
  transform: translateX(3px);
}

/* 内容媒体容器 */
figure img {
  width: 100%;
  height: auto;
  object-fit: cover;
}

figcaption {
  font-size: 0.8125rem;
  color: var(--color-muted);
  padding: 8px 2px 0;
  line-height: 1.6;
}

/* 相关内容导航（首页与场景页底部） */
.related-links {
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.related-links-label {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--color-ink);
  margin-right: 4px;
}

.related-links a.related-links-item {
  font-size: 0.9375rem;
  color: var(--color-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  background-color: var(--color-white);
  padding: 8px 16px;
  transition: border-color 0.2s ease, background-color 0.2s ease;
}

.related-links a.related-links-item:hover {
  border-color: var(--color-primary);
  background-color: rgba(199, 69, 46, 0.05);
}

/* 卡片通用 */
.related-card {
  background-color: var(--color-white);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 24px;
  transition: box-shadow 0.2s ease, border-color 0.2s ease;
}

.related-card:hover {
  box-shadow: var(--shadow-panel);
  border-color: var(--color-beige);
}

.related-card h3 {
  font-size: 1.125rem;
  margin-bottom: 8px;
}

.related-card p {
  color: var(--color-ink-soft);
  font-size: 0.9375rem;
  margin-bottom: 12px;
  line-height: 1.7;
}

.related-card a {
  font-weight: 600;
  font-size: 0.9375rem;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

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

.related-card a:hover::after {
  transform: translateX(3px);
}

/* --------------------------------------------------------------------------
   4. Pages —— 首页专属
   -------------------------------------------------------------------------- */

/* 首屏档案封面 */
.hero-cover {
  padding: 48px 0 8px;
}

.cover-copy {
  max-width: 780px;
  margin-bottom: 32px;
}

.hero-title {
  font-size: 2.5rem;
  line-height: 1.3;
  margin-bottom: 16px;
  font-weight: 800;
}

.hero-title .accent-text {
  color: var(--color-primary);
}

.hero-lead {
  font-size: 1.125rem;
  color: var(--color-ink-soft);
  line-height: 1.9;
  max-width: 680px;
  margin-bottom: 0;
}

.hero-figure {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-color);
  background-color: var(--color-white);
  box-shadow: var(--shadow-panel);
  margin-bottom: 24px;
}

.hero-figure img {
  aspect-ratio: 16 / 7;
  object-fit: cover;
  width: 100%;
}

.hero-figure .hero-caption {
  padding: 12px 20px;
  background-color: var(--color-white);
  font-size: 0.875rem;
  color: var(--color-muted);
  border-top: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  gap: 8px;
}

.hero-caption::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  background-color: var(--color-primary);
  border-radius: 50%;
  flex-shrink: 0;
}

/* 首页中段媒体图 */
.content-media-primary {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-color);
  background-color: var(--color-white);
  margin-bottom: 32px;
}

.content-media-primary img {
  aspect-ratio: 16 / 6;
  object-fit: cover;
}

.content-media-primary figcaption {
  padding: 10px 16px;
  border-top: 1px solid var(--border-color);
  background-color: var(--color-white);
}

/* 双通道引导 */
.dual-entry {
  padding: 40px 0 8px;
}

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

.entry-path {
  background-color: var(--color-white);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: box-shadow 0.2s ease, border-color 0.2s ease;
}

.entry-path:hover {
  box-shadow: var(--shadow-panel);
  border-color: var(--color-beige);
}

.entry-path h3 {
  font-size: 1.25rem;
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.entry-path h3::before {
  content: attr(data-index);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  background-color: var(--color-primary);
  color: #FFF;
  font-size: 0.875rem;
  border-radius: var(--radius-sm);
  flex-shrink: 0;
}

.entry-path > p {
  color: var(--color-ink-soft);
  font-size: 0.9375rem;
  margin-bottom: 16px;
  line-height: 1.7;
}

.path-steps {
  list-style: none;
  counter-reset: step;
}

.path-steps li {
  counter-increment: step;
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 6px 0;
  font-size: 0.9375rem;
  color: var(--color-ink-soft);
  line-height: 1.7;
}

.path-steps li::before {
  content: counter(step, decimal-leading-zero);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--color-beige);
  font-variant-numeric: tabular-nums;
  min-width: 22px;
}

.path-steps li span {
  flex: 0 0 auto;
  font-weight: 600;
  color: var(--color-ink);
}

.path-steps li a {
  color: var(--color-primary);
  font-weight: 500;
}

.path-note {
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px dashed var(--border-color);
  font-size: 0.8125rem;
  color: var(--color-muted);
}

/* 快速入口（熟悉用户列） */
.quick-links {
  margin-top: 12px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.quick-links a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  background-color: var(--color-beige-light);
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  color: var(--color-ink);
  font-weight: 500;
  font-size: 0.9375rem;
  transition: background-color 0.2s ease, border-color 0.2s ease;
}

.quick-links a::after {
  content: "→";
  color: var(--color-primary);
  font-size: 1rem;
}

.quick-links a:hover {
  background-color: #FFF;
  border-color: var(--color-primary);
}

/* 观看维度导读 */
.dimension-guide {
  padding: 40px 0 8px;
}

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

.dimension-item {
  background-color: var(--color-white);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  padding: 24px 20px;
  border-top: 4px solid var(--color-beige);
  transition: border-top-color 0.2s ease, box-shadow 0.2s ease;
}

.dimension-item:nth-child(1) {
  border-top-color: var(--color-primary);
}

.dimension-item h3 {
  font-size: 1.0625rem;
  margin-bottom: 8px;
  position: relative;
  padding-left: 14px;
}

.dimension-item h3::before {
  content: "";
  position: absolute;
  left: 0;
  top: 6px;
  width: 6px;
  height: 6px;
  background-color: var(--color-primary);
  border-radius: 50%;
}

.dimension-item p {
  font-size: 0.875rem;
  color: var(--color-ink-soft);
  line-height: 1.7;
  margin-bottom: 12px;
}

.dimension-item a {
  font-size: 0.875rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.dimension-item a::after {
  content: "→";
}

/* 预览区块（频道脉络与场景片单） */
.preview-block {
  padding: 40px 0 8px;
}

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

.preview-column {
  background-color: var(--color-white);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 28px;
}

.preview-column h2 {
  font-size: 1.375rem;
  margin-bottom: 8px;
}

.preview-column > p {
  color: var(--color-ink-soft);
  font-size: 0.9375rem;
  margin-bottom: 16px;
  line-height: 1.7;
}

.preview-list {
  list-style: none;
}

.preview-list li {
  border-bottom: 1px dashed var(--border-color);
}

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

.preview-list a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 4px;
  color: var(--color-ink);
  font-size: 0.9375rem;
  font-weight: 500;
  transition: color 0.2s ease;
}

.preview-list a::after {
  content: "→";
  color: var(--color-primary);
}

.preview-list a:hover {
  color: var(--color-primary);
}

/* 短剧入门提示窄条 */
.primer-strip {
  margin: 40px 0 0;
  padding: 24px 28px;
  background-color: var(--color-accent);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}

.strip-title {
  color: #FFF;
  font-size: 1.125rem;
  margin-bottom: 4px;
}

.primer-strip p {
  color: rgba(255, 255, 255, 0.85);
  font-size: 0.9375rem;
  margin-bottom: 0;
  flex: 1 1 320px;
  min-width: 220px;
}

.primer-strip .strip-link {
  background-color: #FFF;
  color: var(--color-accent);
  padding: 10px 20px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.9375rem;
  white-space: nowrap;
  transition: background-color 0.2s ease;
}

.primer-strip .strip-link:hover {
  background-color: var(--color-beige-light);
  color: var(--color-accent);
}

/* FAQ 预览（首页） */
.faq-preview {
  padding: 40px 0 0;
}

.faq-preview .faq-more {
  margin-top: 12px;
  text-align: right;
}

.faq-preview .faq-more a {
  font-weight: 600;
  font-size: 0.9375rem;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.faq-preview .faq-more a::after {
  content: "→";
}

/* --------------------------------------------------------------------------
   5. Pages —— 节目导览（频道脉络）
   -------------------------------------------------------------------------- */

/* 导读视觉区 */
.guide-visual-section {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 32px;
  align-items: start;
  padding: 8px 0 40px;
}

.guide-visual-copy h2 {
  margin-bottom: 12px;
}

.guide-visual-copy p {
  color: var(--color-ink-soft);
  line-height: 1.8;
}

.guide-figure {
  background-color: var(--color-white);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-panel);
}

.guide-figure img {
  aspect-ratio: 16 / 9;
  width: 100%;
  object-fit: cover;
}

.guide-figure figcaption {
  padding: 10px 16px;
  border-top: 1px solid var(--border-color);
  background-color: var(--color-white);
}

/* 四维表格 */
.dimension-table-section {
  padding: 24px 0;
}

.dimension-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  background-color: var(--color-white);
}

.dimension-table {
  width: 100%;
  font-size: 0.9375rem;
}

.dimension-table thead th {
  background-color: var(--color-beige-light);
  padding: 14px 18px;
  text-align: left;
  font-weight: 600;
  color: var(--color-ink);
  border-bottom: 1px solid var(--border-color);
  white-space: nowrap;
}

.dimension-table tbody th {
  background-color: var(--color-white);
  padding: 16px 18px;
  text-align: left;
  font-weight: 600;
  color: var(--color-ink);
  border-bottom: 1px solid var(--border-color);
  white-space: nowrap;
  width: 120px;
}

.dimension-table tbody td {
  padding: 16px 18px;
  border-bottom: 1px solid var(--border-color);
  color: var(--color-ink-soft);
  vertical-align: top;
  line-height: 1.7;
}

.dimension-table tbody tr:last-child th,
.dimension-table tbody tr:last-child td {
  border-bottom: none;
}

.dimension-table tbody tr:hover th {
  background-color: rgba(199, 69, 46, 0.04);
}

.dimension-table tbody tr:hover td {
  background-color: rgba(199, 69, 46, 0.02);
}

/* 限制说明 */
.limit-note-section {
  padding: 24px 0 8px;
}

.limit-note-section p {
  background-color: var(--color-beige-light);
  border-left: 4px solid var(--color-beige);
  padding: 16px 20px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--color-ink-soft);
  font-size: 0.9375rem;
  line-height: 1.8;
  margin-bottom: 0;
}

/* 自查清单 */
.checklist-section {
  padding: 24px 0 8px;
}

.check-list {
  list-style: none;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.check-list li {
  background-color: var(--color-white);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 16px 18px;
  font-size: 0.9375rem;
  color: var(--color-ink-soft);
  line-height: 1.7;
  display: flex;
  gap: 10px;
  align-items: flex-start;
}

.check-list li::before {
  content: "□";
  color: var(--color-primary);
  font-weight: 700;
  flex-shrink: 0;
}

/* 相关栏目延伸 */
.related-links-section {
  padding: 32px 0 0;
}

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

/* --------------------------------------------------------------------------
   6. Pages —— 场景片单
   -------------------------------------------------------------------------- */

/* 阅读结论区（含场景状态图） */
.scene-conclusion {
  padding: 8px 0 36px;
}

.scene-conclusion .section-title {
  font-size: 1.375rem;
}

.content-media-inline {
  background-color: var(--color-white);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin: 0 0 20px;
  box-shadow: var(--shadow-panel);
}

.content-media-inline img {
  aspect-ratio: 21 / 9;
  width: 100%;
  object-fit: cover;
}

.content-media-inline figcaption {
  padding: 10px 16px;
  border-top: 1px solid var(--border-color);
  background-color: var(--color-white);
  font-size: 0.8125rem;
}

/* 场景片单结论区正文 */
.scene-conclusion > p {
  color: var(--color-ink-soft);
  font-size: 1rem;
  line-height: 1.9;
  max-width: 860px;
  margin-top: 16px;
}

/* 场景卡片列表 */
.scene-list-section {
  padding: 24px 0 8px;
}

.scene-card-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
}

.scene-card {
  background-color: var(--color-white);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}

.scene-card:hover {
  box-shadow: var(--shadow-panel);
  transform: translateY(-2px);
}

.scene-card-inner {
  padding: 20px 18px;
  display: flex;
  flex-direction: column;
  height: 100%;
}

.scene-card-title {
  font-size: 1.0625rem;
  margin-bottom: 8px;
  position: relative;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--color-beige-light);
}

.scene-card-title::before {
  content: "";
  display: inline-block;
  width: 8px;
  height: 8px;
  background-color: var(--color-primary);
  border-radius: 2px;
  margin-right: 8px;
  vertical-align: 1px;
}

.scene-time {
  font-size: 0.8125rem;
  color: var(--color-accent);
  font-weight: 600;
  margin-bottom: 10px;
  background-color: rgba(43, 107, 98, 0.08);
  display: inline-block;
  padding: 2px 10px;
  border-radius: var(--radius-sm);
  align-self: flex-start;
}

.scene-desc {
  font-size: 0.875rem;
  color: var(--color-ink-soft);
  line-height: 1.7;
  margin-bottom: 12px;
  flex: 1 0 auto;
}

.scene-check {
  font-size: 0.8125rem;
  color: var(--color-muted);
  line-height: 1.6;
  padding-top: 10px;
  border-top: 1px dashed var(--border-color);
  margin-bottom: 0;
}

/* 场景匹配表 */
.scene-match-section {
  padding: 24px 0 8px;
}

.table-scroll {
  overflow-x: auto;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  background-color: var(--color-white);
}

.match-table {
  width: 100%;
  font-size: 0.9375rem;
  min-width: 640px;
}

.match-table thead th {
  background-color: var(--color-beige-light);
  padding: 14px 18px;
  text-align: left;
  font-weight: 600;
  color: var(--color-ink);
  border-bottom: 1px solid var(--border-color);
  white-space: nowrap;
}

.match-table tbody td {
  padding: 14px 18px;
  border-bottom: 1px solid var(--border-color);
  color: var(--color-ink-soft);
  vertical-align: top;
  line-height: 1.7;
}

.match-table tbody tr:last-child td {
  border-bottom: none;
}

.match-table tbody tr:nth-child(even) td {
  background-color: rgba(219, 198, 175, 0.1);
}

.match-table tbody tr:hover td {
  background-color: rgba(199, 69, 46, 0.03);
}

/* 场景限制 */
.scene-limit {
  padding: 24px 0 0;
}

.scene-limit p {
  background-color: var(--color-beige-light);
  border-left: 4px solid var(--color-primary);
  padding: 16px 20px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--color-ink-soft);
  font-size: 0.9375rem;
  line-height: 1.8;
  margin-bottom: 0;
}

/* 延伸入口 */
.scene-extend {
  padding: 32px 0 0;
}

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

.extend-card {
  background-color: var(--color-white);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 24px;
  transition: box-shadow 0.2s ease, border-color 0.2s ease;
}

.extend-card:hover {
  box-shadow: var(--shadow-panel);
  border-color: var(--color-beige);
}

.extend-card-title {
  font-size: 1.125rem;
  margin-bottom: 8px;
}

.extend-card p {
  color: var(--color-ink-soft);
  font-size: 0.9375rem;
  margin-bottom: 12px;
  line-height: 1.7;
}

.extend-card .extend-link {
  font-weight: 600;
  font-size: 0.9375rem;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.extend-card .extend-link::after {
  content: "→";
}

/* --------------------------------------------------------------------------
   7. Pages —— 短剧入门
   -------------------------------------------------------------------------- */

/* 阅读结论卡 */
.primer-conclusion {
  padding: 8px 0 32px;
}

.conclusion-card {
  background-color: var(--color-white);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 28px 32px;
  box-shadow: var(--shadow-panel);
  position: relative;
  overflow: hidden;
}

.conclusion-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 5px;
  background-color: var(--color-primary);
}

.conclusion-label {
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 8px;
}

.conclusion-text {
  font-size: 1.125rem;
  line-height: 1.9;
  color: var(--color-ink);
  font-weight: 500;
  margin-bottom: 0;
}

/* 形式对比 */
.primer-compare {
  padding: 16px 0 8px;
}

.compare-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  background-color: var(--color-white);
}

.compare-table {
  width: 100%;
  font-size: 0.9375rem;
  min-width: 600px;
}

.compare-table thead th {
  background-color: var(--color-beige-light);
  padding: 14px 18px;
  text-align: left;
  font-weight: 600;
  color: var(--color-ink);
  border-bottom: 1px solid var(--border-color);
  white-space: nowrap;
}

.compare-table tbody th {
  background-color: var(--color-white);
  padding: 14px 18px;
  text-align: left;
  font-weight: 600;
  color: var(--color-ink);
  border-bottom: 1px solid var(--border-color);
  white-space: nowrap;
  width: 140px;
}

.compare-table tbody td {
  padding: 14px 18px;
  border-bottom: 1px solid var(--border-color);
  color: var(--color-ink-soft);
  vertical-align: top;
  line-height: 1.7;
}

.compare-table tbody tr:last-child th,
.compare-table tbody tr:last-child td {
  border-bottom: none;
}

/* 结构分布图 */
.primer-structure {
  padding: 24px 0 8px;
}

.structure-figure {
  background-color: var(--color-white);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-panel);
  margin-bottom: 24px;
}

.structure-figure img {
  aspect-ratio: 16 / 7;
  width: 100%;
  object-fit: cover;
}

.structure-figure figcaption {
  padding: 10px 16px;
  border-top: 1px solid var(--border-color);
  background-color: var(--color-white);
}

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

.structure-point {
  background-color: var(--color-white);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 20px 24px;
}

.structure-point h3 {
  font-size: 1.0625rem;
  margin-bottom: 8px;
  position: relative;
  padding-left: 16px;
}

.structure-point h3::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 8px;
  height: 8px;
  background-color: var(--color-primary);
  border-radius: 2px;
}

.structure-point p {
  color: var(--color-ink-soft);
  font-size: 0.9375rem;
  line-height: 1.7;
  margin-bottom: 0;
}

/* 叙事节奏双线 */
.primer-rhythm {
  padding: 24px 0 8px;
}

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

.rhythm-card {
  background-color: var(--color-white);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 24px;
  border-top: 4px solid var(--color-beige);
}

.rhythm-card:first-child {
  border-top-color: var(--color-primary);
}

.rhythm-card:last-child {
  border-top-color: var(--color-accent);
}

.rhythm-card h3 {
  font-size: 1.125rem;
  margin-bottom: 8px;
}

.rhythm-card p {
  color: var(--color-ink-soft);
  font-size: 0.9375rem;
  line-height: 1.7;
  margin-bottom: 8px;
}

.rhythm-card p:last-child {
  margin-bottom: 0;
}

/* 内容识别五要点 */
.primer-identify {
  padding: 24px 0 8px;
}

.identify-list {
  list-style: none;
  counter-reset: identify;
}

.identify-list li {
  counter-increment: identify;
  background-color: var(--color-white);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 18px 24px 18px 72px;
  margin-bottom: 12px;
  position: relative;
  transition: border-color 0.2s ease;
}

.identify-list li:hover {
  border-color: var(--color-beige);
}

.identify-list li::before {
  content: counter(identify, decimal-leading-zero);
  position: absolute;
  left: 20px;
  top: 18px;
  font-size: 1.375rem;
  font-weight: 800;
  color: var(--color-primary);
  font-variant-numeric: tabular-nums;
}

.identify-list h3 {
  font-size: 1.0625rem;
  margin-bottom: 4px;
}

.identify-list p {
  color: var(--color-ink-soft);
  font-size: 0.9375rem;
  line-height: 1.7;
  margin-bottom: 0;
}

/* 边界说明 */
.primer-boundary {
  padding: 24px 0 8px;
}

.boundary-notes {
  background-color: var(--color-beige-light);
  border-radius: var(--radius-md);
  padding: 20px 24px;
  margin-bottom: 16px;
}

.boundary-notes p {
  color: var(--color-ink-soft);
  font-size: 0.9375rem;
  line-height: 1.8;
  margin-bottom: 10px;
  padding-left: 16px;
  position: relative;
}

.boundary-notes p::before {
  content: "·";
  position: absolute;
  left: 2px;
  color: var(--color-primary);
  font-weight: 700;
}

.boundary-notes p:last-child {
  margin-bottom: 0;
}

.boundary-notes strong {
  color: var(--color-ink);
}

.boundary-closing {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  padding: 8px 0;
}

.boundary-closing a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background-color: var(--color-white);
  border: 1px solid var(--border-color);
  padding: 8px 18px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.9375rem;
  transition: border-color 0.2s ease;
}

.boundary-closing a:hover {
  border-color: var(--color-primary);
}

.boundary-closing a::after {
  content: "→";
}

/* 侧栏延伸阅读 */
.primer-extras {
  padding: 32px 0 0;
}

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

a.extra-link {
  display: flex;
  flex-direction: column;
  background-color: var(--color-white);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 20px 24px;
  transition: box-shadow 0.2s ease, border-color 0.2s ease;
}

a.extra-link:hover {
  box-shadow: var(--shadow-panel);
  border-color: var(--color-primary);
}

.extra-name {
  font-weight: 700;
  font-size: 1.0625rem;
  color: var(--color-ink);
  margin-bottom: 4px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.extra-name::after {
  content: "→";
  color: var(--color-primary);
  font-size: 1rem;
}

.extra-desc {
  font-size: 0.875rem;
  color: var(--color-muted);
  line-height: 1.6;
}

/* --------------------------------------------------------------------------
   8. Pages —— 疑问集
   -------------------------------------------------------------------------- */

.questions-conclusion {
  padding: 8px 0 24px;
}

.questions-conclusion p {
  background-color: var(--color-white);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 16px 24px;
  color: var(--color-ink-soft);
  font-size: 0.9375rem;
  line-height: 1.8;
  border-left: 4px solid var(--color-accent);
  margin-bottom: 0;
}

/* 问答分组 */
.question-group {
  padding: 20px 0 8px;
}

.group-heading {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border-color);
}

.group-mark {
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  background-color: var(--color-primary);
  color: #FFF;
  border-radius: var(--radius-sm);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.875rem;
  font-weight: 700;
  margin-top: 2px;
}

.group-title {
  font-size: 1.25rem;
  margin-bottom: 2px;
}

.group-desc {
  color: var(--color-muted);
  font-size: 0.875rem;
  margin-bottom: 0;
}

.faq-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}

/* FAQ 限制说明 */
.faq-limitation {
  padding: 24px 0 8px;
}

.faq-limitation p {
  background-color: var(--color-beige-light);
  border-radius: var(--radius-sm);
  padding: 16px 20px;
  color: var(--color-ink-soft);
  font-size: 0.9375rem;
  border-left: 4px solid var(--color-beige);
  margin-bottom: 0;
  line-height: 1.8;
}

/* 相关阅读（疑问集页） */
.related-reading {
  padding: 24px 0 0;
}

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

.related-card {
  display: flex;
  gap: 16px;
  padding: 16px;
  align-items: flex-start;
}

.related-card .related-image {
  width: 120px;
  height: 88px;
  object-fit: cover;
  border-radius: var(--radius-sm);
  flex-shrink: 0;
  border: 1px solid var(--border-color);
}

.related-card .related-content {
  flex: 1 1 auto;
}

.related-card .related-content h3 {
  font-size: 1.0625rem;
  margin-bottom: 4px;
}

.related-card .related-content p {
  font-size: 0.875rem;
  margin-bottom: 8px;
}

/* --------------------------------------------------------------------------
   9. Pages —— 整理范围
   -------------------------------------------------------------------------- */

.scope-section {
  padding: 16px 0 8px;
}

.scope-section > p {
  color: var(--color-ink-soft);
  line-height: 1.8;
  max-width: 860px;
}

.scope-figure {
  background-color: var(--color-white);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-panel);
  margin-bottom: 20px;
}

.scope-figure img {
  aspect-ratio: 21 / 8;
  width: 100%;
  object-fit: cover;
}

.scope-figure figcaption {
  padding: 10px 16px;
  border-top: 1px solid var(--border-color);
  background-color: var(--color-white);
}

/* 覆盖范围清单 */
.scope-list {
  list-style: none;
}

.scope-list li {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 10px 0;
  border-bottom: 1px dashed var(--border-color);
  color: var(--color-ink-soft);
  font-size: 0.9375rem;
  line-height: 1.7;
}

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

.scope-list li::before {
  content: "✓";
  color: var(--color-accent);
  font-weight: 700;
  flex-shrink: 0;
}

/* 不提供服务表 */
.scope-table {
  width: 100%;
  font-size: 0.9375rem;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
  background-color: var(--color-white);
  min-width: 520px;
}

.scope-table thead th {
  background-color: var(--color-beige-light);
  padding: 12px 18px;
  text-align: left;
  font-weight: 600;
  color: var(--color-ink);
  border-bottom: 1px solid var(--border-color);
}

.scope-table tbody td {
  padding: 14px 18px;
  border-bottom: 1px solid var(--border-color);
  color: var(--color-ink-soft);
  vertical-align: top;
  line-height: 1.7;
}

.scope-table tbody tr:last-child td {
  border-bottom: none;
}

/* 范围判定卡片 */
.scope-judge-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.judge-card {
  background-color: var(--color-white);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 24px;
  border-top: 4px solid var(--color-beige);
}

.judge-card:first-child {
  border-top-color: var(--color-primary);
}

.judge-card:last-child {
  border-top-color: var(--color-accent);
}

.judge-card h3 {
  font-size: 1.0625rem;
  margin-bottom: 8px;
}

.judge-card p {
  color: var(--color-ink-soft);
  font-size: 0.9375rem;
  line-height: 1.7;
  margin-bottom: 0;
}

/* 站内导航 */
.inner-page-nav {
  padding: 24px 0 0;
}

.nav-cross-list {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 10px;
}

.nav-cross-list a {
  display: block;
  background-color: var(--color-white);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  text-align: center;
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-ink);
  transition: border-color 0.2s ease, color 0.2s ease;
}

.nav-cross-list a:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

/* --------------------------------------------------------------------------
   10. Pages —— 404
   -------------------------------------------------------------------------- */

.error-main {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 64px 24px;
  min-height: 60vh;
}

.error-panel {
  max-width: 560px;
  text-align: center;
  background-color: var(--color-white);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 48px 40px;
  box-shadow: var(--shadow-panel);
}

.error-code {
  font-size: 4.5rem;
  font-weight: 800;
  color: var(--color-primary);
  line-height: 1;
  margin-bottom: 8px;
  font-variant-numeric: tabular-nums;
}

.error-panel h1 {
  font-size: 1.5rem;
  margin-bottom: 12px;
}

.error-lead {
  color: var(--color-ink-soft);
  font-size: 1rem;
  margin-bottom: 24px;
  line-height: 1.8;
}

.error-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 16px;
}

.btn-primary,
.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 10px 24px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.9375rem;
  transition: background-color 0.2s ease, border-color 0.2s ease;
}

.btn-primary {
  background-color: var(--color-primary);
  color: #FFF;
  border: 1px solid var(--color-primary);
}

.btn-primary:hover {
  background-color: var(--color-primary-dark);
  color: #FFF;
}

.btn-secondary {
  background-color: var(--color-white);
  color: var(--color-ink);
  border: 1px solid var(--border-color);
}

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

.error-tip {
  font-size: 0.8125rem;
  color: var(--color-muted);
  margin-bottom: 0;
}

/* --------------------------------------------------------------------------
   11. Responsive —— 响应式断点
   -------------------------------------------------------------------------- */

/* 桌面小屏（≤ 1100px） */
@media (max-width: 1100px) {
  .scene-card-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .scene-card:nth-child(4),
  .scene-card:nth-child(5) {
    grid-column: span 1;
  }
}

/* 平板（≤ 900px） */
@media (max-width: 900px) {
  .dimension-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .guide-visual-section {
    grid-template-columns: 1fr;
    gap: 20px;
  }

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

  .nav-cross-list {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* 手机窄屏（≤ 640px） */
@media (max-width: 640px) {
  /* 页头 */
  .header-inner {
    padding: 0 16px;
    min-height: 56px;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .site-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--color-white);
    border-bottom: 1px solid var(--border-color);
    box-shadow: 0 8px 16px rgba(54, 42, 38, 0.08);
    display: none;
  }

  .site-nav.is-open {
    display: block;
  }

  .nav-list {
    flex-direction: column;
    align-items: stretch;
    padding: 8px 16px 16px;
    gap: 0;
  }

  .nav-list li {
    border-bottom: 1px solid var(--border-color);
  }

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

  .nav-list a {
    display: block;
    padding: 14px 8px;
    font-size: 1rem;
    border-bottom: none;
    border-radius: 0;
  }

  .nav-list a.is-current {
    border-bottom: none;
    background-color: rgba(199, 69, 46, 0.05);
    color: var(--color-primary);
  }

  /* 主容器 */
  .home-main,
  .site-inner {
    padding: 0 16px 48px;
  }

  .page-header {
    padding: 16px 0 20px;
    margin-bottom: 24px;
  }

  .page-title {
    font-size: 1.625rem;
  }

  .page-title::before {
    width: 8px;
    height: 22px;
    margin-right: 10px;
    vertical-align: -3px;
  }

  .hero-title {
    font-size: 1.75rem;
  }

  .hero-lead {
    font-size: 1rem;
  }

  .hero-figure img {
    aspect-ratio: 4 / 3;
  }

  .content-media-primary img {
    aspect-ratio: 4 / 3;
  }

  /* 双通道 */
  .dual-grid {
    grid-template-columns: 1fr;
  }

  .entry-path {
    padding: 20px;
  }

  /* 维度 */
  .dimension-grid {
    grid-template-columns: 1fr;
  }

  /* 预览 */
  .preview-row {
    grid-template-columns: 1fr;
  }

  .preview-column {
    padding: 20px;
  }

  /* 提示条 */
  .primer-strip {
    padding: 20px;
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

  .primer-strip p {
    flex: none;
    min-width: 0;
  }

  /* 表格区域横向滚动 */
  .dimension-table-wrap,
  .compare-table-wrap,
  .table-scroll {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }

  .dimension-table,
  .compare-table,
  .match-table,
  .scope-table {
    min-width: 560px;
  }

  /* 检查清单 */
  .check-list {
    grid-template-columns: 1fr;
  }

  .related-links-grid,
  .extend-links,
  .rhythm-grid,
  .structure-points,
  .related-grid,
  .scope-judge-grid {
    grid-template-columns: 1fr;
  }

  /* 场景卡 */
  .scene-card-grid {
    grid-template-columns: 1fr;
  }

  .scene-card {
    max-width: 100%;
  }

  /* 识别列表 */
  .identify-list li {
    padding: 16px 16px 16px 60px;
  }

  .identify-list li::before {
    left: 16px;
    top: 16px;
    font-size: 1.125rem;
  }

  /* 内页导航跨列表 */
  .nav-cross-list {
    grid-template-columns: repeat(2, 1fr);
  }

  /* 页脚 */
  .footer-inner {
    grid-template-columns: 1fr;
    gap: 28px;
    padding: 36px 16px 20px;
  }

  .footer-copyright {
    margin-top: 8px;
    text-align: left;
  }

  /* FAQ */
  .faq-item summary {
    padding: 14px 40px 14px 16px;
    font-size: 0.9375rem;
  }

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

  /* 404 */
  .error-panel {
    padding: 32px 20px;
  }

  .error-code {
    font-size: 3rem;
  }

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

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

  /* 疑问集分组标题 */
  .group-heading {
    gap: 10px;
  }

  .group-mark {
    width: 28px;
    height: 28px;
    font-size: 0.8125rem;
  }

  .group-title {
    font-size: 1.125rem;
  }

  /* 相关卡片图片 */
  .related-card {
    flex-direction: column;
  }

  .related-card .related-image {
    width: 100%;
    height: 160px;
  }
}

/* 超小屏（≤ 380px） */
@media (max-width: 380px) {
  .nav-cross-list {
    grid-template-columns: 1fr;
  }

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

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