/* ==========================================================================
   草莓短剧网 - 整站样式表
   设计方向：百科索引风，浅灰目录块、蓝色链接、稳定正文宽度
   ========================================================================== */

/* ==========================================================================
   Base - 基础样式、变量、重置
   ========================================================================== */

:root {
  --color-link: #1a5bb5;
  --color-link-hover: #13478c;
  --color-bg-light: #f4f6f9;
  --color-heading: #2b2f36;
  --color-text: #3a4149;
  --color-muted: #5b6470;
  --color-white: #ffffff;
  --color-border: #e2e6ec;
  --color-border-dark: #c9d0d9;
  --color-accent-light: #eaf1fb;
  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --container-width: 1200px;
  --content-width: 68ch;
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 8px;
  --header-height: 64px;
  --space-section: 56px;
  --space-block: 28px;
}

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

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

body {
  font-family: var(--font-family);
  font-size: 1rem;
  line-height: 1.75;
  color: var(--color-text);
  background-color: var(--color-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

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

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

h1,
h2,
h3,
h4,
h5,
h6 {
  color: var(--color-heading);
  line-height: 1.4;
  font-weight: 700;
  text-rendering: optimizeLegibility;
}

p {
  line-height: 1.75;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ==========================================================================
   Layout - 全局布局骨架
   ========================================================================== */

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

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

/* 内页主容器 */
.inner-main {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* 首页主容器 */
.home-main {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
  flex: 1 0 auto;
}

/* ==========================================================================
   Components - Header 页头
   ========================================================================== */

.site-header {
  width: 100%;
  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: var(--header-height);
  gap: 24px;
}

.brand-link {
  display: inline-flex;
  align-items: center;
  flex-shrink: 0;
  text-decoration: none;
  background-color: transparent;
}

.brand-link:hover {
  background-color: transparent;
}

.brand-name {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--color-heading);
  letter-spacing: 0.01em;
  white-space: nowrap;
}

.brand-name::first-letter {
  color: var(--color-link);
}

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

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

.nav-toggle-icon {
  display: block;
  width: 20px;
  height: 2px;
  background-color: var(--color-heading);
  position: relative;
  transition: background-color 0.2s ease;
}

.nav-toggle-icon::before,
.nav-toggle-icon::after {
  content: "";
  position: absolute;
  left: 0;
  width: 20px;
  height: 2px;
  background-color: var(--color-heading);
  transition: transform 0.2s ease;
}

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

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

.nav-toggle[aria-expanded="true"] .nav-toggle-icon {
  background-color: transparent;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-icon::before {
  transform: rotate(45deg);
  top: 0;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-icon::after {
  transform: rotate(-45deg);
  top: 0;
}

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

.nav-list li {
  margin: 0;
}

.nav-list a {
  display: inline-block;
  padding: 8px 14px;
  font-size: 0.95rem;
  color: var(--color-text);
  border-radius: var(--radius-sm);
  line-height: 1.4;
  background-color: transparent;
  white-space: nowrap;
}

.nav-list a:hover {
  color: var(--color-link);
  background-color: var(--color-bg-light);
}

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

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

.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
  padding: 20px 0 4px;
  font-size: 0.875rem;
  color: var(--color-muted);
}

.breadcrumb a {
  color: var(--color-link);
  background-color: transparent;
  padding: 2px 0;
}

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

.breadcrumb-sep {
  color: var(--color-border-dark);
  margin: 0 2px;
}

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

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

.page-header {
  padding: 20px 0 24px;
  border-bottom: 1px solid var(--color-border);
  margin-bottom: 32px;
}

.page-title {
  font-size: 1.9rem;
  font-weight: 700;
  color: var(--color-heading);
  line-height: 1.3;
  margin-bottom: 10px;
}

.page-description {
  font-size: 1rem;
  color: var(--color-muted);
  max-width: var(--content-width);
  line-height: 1.75;
}

.page-description strong {
  color: var(--color-text);
  font-weight: 600;
}

/* ==========================================================================
   Layout - 内页双栏（sidebar-left 变体）
   ========================================================================== */

/* 页面级侧栏布局：aside 与 main 是 body 直接子元素时用 body 做网格 */
.site-body.sidebar-left {
  display: grid;
  grid-template-columns: 1fr;
  grid-template-rows: auto 1fr auto;
}

/* 布局容器级侧栏 */
.layout-shell.sidebar-left {
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr);
  gap: 40px;
  align-items: start;
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
}

.page-layout.sidebar-left {
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr);
  gap: 40px;
  align-items: start;
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* 侧栏 */
.sidebar,
.page-sidebar {
  position: sticky;
  top: calc(var(--header-height) + 20px);
  align-self: start;
  min-width: 0;
}

.sidebar-block {
  background-color: var(--color-bg-light);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 18px 16px;
  margin-bottom: 16px;
}

.sidebar-block:last-child {
  margin-bottom: 0;
}

.sidebar-title {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--color-heading);
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--color-border);
  letter-spacing: 0.02em;
}

.sidebar-nav,
.sidebar-list {
  list-style: none;
  margin: 0;
}

.sidebar-nav li,
.sidebar-list li {
  margin: 0 0 2px;
}

.sidebar-nav a,
.sidebar-list a {
  display: block;
  padding: 5px 8px;
  font-size: 0.875rem;
  color: var(--color-text);
  border-radius: var(--radius-sm);
  line-height: 1.5;
  background-color: transparent;
}

.sidebar-nav a:hover,
.sidebar-list a:hover {
  color: var(--color-link);
  background-color: var(--color-white);
}

.sidebar-nav a.is-active,
.sidebar-list a.is-active {
  color: var(--color-link);
  font-weight: 600;
  background-color: var(--color-white);
}

/* 侧栏内小标签 */
.sidebar-label {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--color-heading);
  margin-bottom: 10px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--color-border);
}

.sidebar-inner .sidebar-label:not(:first-child) {
  margin-top: 20px;
}

/* 正文区 */
.content-area {
  min-width: 0;
  min-height: 400px;
}

/* ==========================================================================
   Components - 通用区块与正文
   ========================================================================== */

.content-section {
  margin-bottom: var(--space-section);
  scroll-margin-top: calc(var(--header-height) + 20px);
}

.content-section:last-child {
  margin-bottom: 0;
}

.section-title {
  font-size: 1.45rem;
  font-weight: 700;
  color: var(--color-heading);
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--color-link);
  line-height: 1.4;
}

.section-title + p,
.section-desc {
  margin-bottom: 24px;
  max-width: var(--content-width);
}

.section-desc {
  color: var(--color-muted);
}

.content-section p {
  max-width: var(--content-width);
  margin-bottom: 16px;
}

.content-section p:last-child {
  margin-bottom: 0;
}

/* ==========================================================================
   Components - 图片与图表容器
   ========================================================================== */

.content-figure,
.page-media,
.page-figure,
.hero-figure {
  margin: 24px 0;
  background-color: var(--color-bg-light);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
}

.content-figure img,
.page-media img,
.page-figure img,
.hero-figure img {
  width: 100%;
  height: auto;
  object-fit: cover;
}

.hero-figure {
  margin: 0;
}

.content-figure img,
.page-media img {
  max-height: 420px;
}

.page-figure img {
  max-height: 320px;
}

/* 首页首屏配图 */
.hero-media .hero-figure img {
  max-height: 360px;
}

.content-figure figcaption,
.page-media figcaption,
.page-figure figcaption,
.hero-figure figcaption {
  padding: 10px 16px;
  font-size: 0.8125rem;
  color: var(--color-muted);
  background-color: var(--color-bg-light);
  border-top: 1px solid var(--color-border);
  line-height: 1.5;
}

/* ==========================================================================
   Components - 上一篇 / 下一篇导航
   ========================================================================== */

.prev-next-nav,
.page-nav-links {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin: 40px 0;
  padding-top: 20px;
  border-top: 1px solid var(--color-border);
}

.prev-link,
.next-link {
  min-width: 0;
}

.prev-link a,
.next-link a {
  display: block;
  padding: 12px 16px;
  background-color: var(--color-bg-light);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: 0.9375rem;
  color: var(--color-text);
  line-height: 1.5;
  background-color: var(--color-bg-light);
}

.prev-link a:hover,
.next-link a:hover {
  background-color: var(--color-accent-light);
  border-color: var(--color-link);
  color: var(--color-link);
}

.prev-link a::before {
  content: "← ";
  color: var(--color-muted);
}

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

.next-link a::after {
  content: " →";
  color: var(--color-muted);
}

/* ==========================================================================
   Components - 步骤列表（通用）
   ========================================================================== */

.step-list {
  list-style: none;
  counter-reset: step-counter;
  margin: 0;
}

.step-item {
  counter-increment: step-counter;
  position: relative;
  padding: 0 0 0 52px;
  margin-bottom: 24px;
}

.step-item::before {
  content: counter(step-counter);
  position: absolute;
  left: 0;
  top: 2px;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background-color: var(--color-link);
  color: var(--color-white);
  font-size: 1rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
}

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

.step-item h3,
.step-title {
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--color-heading);
  margin-bottom: 6px;
  line-height: 1.5;
}

.step-item p {
  font-size: 0.9375rem;
  color: var(--color-text);
  margin-bottom: 8px;
  line-height: 1.7;
}

/* ==========================================================================
   Components - 双栏对照表（包含/不包含）
   ========================================================================== */

.scope-table {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin: 24px 0;
}

.scope-col {
  background-color: var(--color-bg-light);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 20px;
}

.scope-heading {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-heading);
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--color-border);
}

.scope-include .scope-heading {
  color: var(--color-link);
}

.scope-list {
  list-style: none;
  margin: 0;
}

.scope-list li {
  position: relative;
  padding-left: 20px;
  margin-bottom: 8px;
  font-size: 0.9375rem;
  line-height: 1.6;
}

.scope-list li:last-child {
  margin-bottom: 0;
}

.scope-list li::before {
  position: absolute;
  left: 0;
  top: 0;
}

.scope-include .scope-list li::before {
  content: "✓";
  color: #2d8f4e;
  font-weight: 700;
}

.scope-exclude .scope-list li::before {
  content: "✕";
  color: #b03a3a;
  font-weight: 700;
}

.section-note {
  font-size: 0.9375rem;
  color: var(--color-muted);
  background-color: var(--color-bg-light);
  border-left: 3px solid var(--color-link);
  padding: 12px 16px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

/* ==========================================================================
   Components - FAQ 折叠区
   ========================================================================== */

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

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

.faq-item[open] {
  border-color: var(--color-link);
  box-shadow: 0 1px 4px rgba(26, 91, 181, 0.08);
}

.faq-item summary {
  padding: 14px 44px 14px 16px;
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-heading);
  cursor: pointer;
  list-style: none;
  position: relative;
  line-height: 1.5;
  background-color: transparent;
}

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

.faq-item summary::after {
  content: "+";
  position: absolute;
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.375rem;
  font-weight: 400;
  color: var(--color-link);
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
}

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

.faq-item summary:hover {
  background-color: var(--color-bg-light);
}

.faq-answer {
  padding: 0 16px 16px;
  border-top: 1px solid var(--color-border);
}

.faq-answer p {
  font-size: 0.9375rem;
  color: var(--color-text);
  margin-bottom: 10px;
  margin-top: 12px;
  line-height: 1.7;
  max-width: var(--content-width);
}

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

.faq-link-row {
  background-color: var(--color-bg-light);
  border-radius: var(--radius-sm);
  padding: 8px 12px;
  font-size: 0.875rem;
}

.faq-link-row a {
  font-weight: 500;
  background-color: transparent;
  padding: 2px 0;
}

/* ==========================================================================
   Components - 边界声明
   ========================================================================== */

.boundary-note {
  background-color: var(--color-bg-light);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 24px;
  margin-top: 8px;
}

.boundary-note .section-title {
  font-size: 1.125rem;
  border-bottom: none;
  padding-bottom: 0;
  margin-bottom: 12px;
}

.boundary-note p {
  font-size: 0.9375rem;
  color: var(--color-muted);
  margin-bottom: 10px;
  max-width: var(--content-width);
  line-height: 1.7;
}

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

/* ==========================================================================
   Components - Footer 页脚
   ========================================================================== */

.site-footer {
  width: 100%;
  background-color: var(--color-bg-light);
  border-top: 1px solid var(--color-border);
  margin-top: 64px;
  flex-shrink: 0;
}

.footer-columns {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 40px 24px 28px;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 32px;
}

.footer-col {
  min-width: 0;
}

.footer-brand-name {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-heading);
  margin-bottom: 10px;
}

.footer-brand-name::first-letter {
  color: var(--color-link);
}

.footer-tagline {
  font-size: 0.875rem;
  color: var(--color-muted);
  line-height: 1.6;
  max-width: 30ch;
}

.footer-heading {
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--color-heading);
  margin-bottom: 12px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--color-border);
}

.footer-col ul {
  list-style: none;
  margin: 0;
}

.footer-col ul li {
  margin-bottom: 6px;
}

.footer-col ul a {
  display: inline-block;
  font-size: 0.875rem;
  color: var(--color-text);
  padding: 2px 4px;
  border-radius: var(--radius-sm);
  background-color: transparent;
  line-height: 1.5;
}

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

.footer-note p {
  font-size: 0.8125rem;
  color: var(--color-muted);
  line-height: 1.6;
}

.footer-bottom {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 16px 24px;
  border-top: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

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

.back-to-top {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background-color: var(--color-white);
  color: var(--color-link);
  font-size: 1.25rem;
  line-height: 1;
  flex-shrink: 0;
  text-decoration: none;
}

.back-to-top:hover {
  background-color: var(--color-accent-light);
  border-color: var(--color-link);
  color: var(--color-link);
}

.back-to-top::before {
  content: "↑";
}

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

/* 首屏全宽引导列表 */
.hero-guide {
  padding: 40px 0 8px;
}

.hero-media {
  margin-bottom: 28px;
}

.hero-content {
  margin-bottom: 28px;
}

#hero-title {
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-heading);
  line-height: 1.35;
  margin-bottom: 12px;
}

.hero-lead {
  font-size: 1.0625rem;
  color: var(--color-text);
  line-height: 1.75;
  margin-bottom: 12px;
  max-width: var(--content-width);
}

.hero-alert {
  display: inline-block;
  background-color: var(--color-bg-light);
  border-left: 4px solid var(--color-link);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: 10px 16px;
  font-size: 0.9375rem;
  color: var(--color-text);
  line-height: 1.6;
  max-width: var(--content-width);
}

.hero-alert strong {
  color: var(--color-link);
  font-weight: 700;
}

/* 首屏入口列表 */
.entry-list {
  list-style: none;
  margin: 0 0 32px;
  border-top: 1px solid var(--color-border);
}

.entry-item {
  border-bottom: 1px solid var(--color-border);
  margin: 0;
}

.entry-item a {
  display: flex;
  align-items: baseline;
  gap: 16px;
  padding: 14px 8px;
  background-color: transparent;
  border-radius: var(--radius-sm);
  transition: background-color 0.2s ease;
}

.entry-item a:hover {
  background-color: var(--color-bg-light);
}

.entry-name {
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--color-link);
  flex-shrink: 0;
  min-width: 120px;
  line-height: 1.4;
}

.entry-desc {
  font-size: 0.9375rem;
  color: var(--color-muted);
  line-height: 1.6;
}

/* 首页主内容配图 */
.content-media-primary {
  margin: 0 0 40px;
  background-color: var(--color-bg-light);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
}

.content-media-primary img {
  width: 100%;
  height: auto;
  max-height: 380px;
  object-fit: cover;
}

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

/* 全站栏目快览六行 */
.quick-glance {
  padding: 40px 0 8px;
  border-top: 1px solid var(--color-border);
}

.quick-glance .section-title {
  margin-bottom: 20px;
}

.glance-list {
  list-style: none;
  margin: 0;
  display: grid;
  grid-template-columns: 1fr;
}

.glance-item {
  border-bottom: 1px solid var(--color-border);
  display: grid;
  grid-template-columns: 1fr;
  gap: 2px;
}

.glance-item a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 8px;
  background-color: transparent;
  border-radius: var(--radius-sm);
}

.glance-item a:hover {
  background-color: var(--color-bg-light);
}

.glance-label {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--color-link);
  line-height: 1.5;
}

.glance-arrow {
  font-size: 1.125rem;
  color: var(--color-link);
  flex-shrink: 0;
  line-height: 1;
}

.glance-arrow::after {
  content: "→";
}

.glance-note {
  font-size: 0.8125rem;
  color: var(--color-muted);
  padding: 0 8px 8px;
  margin: 0;
  line-height: 1.5;
  max-width: var(--content-width);
}

/* 观看前需确认的三件事 */
.pre-check {
  padding: 40px 0 8px;
  border-top: 1px solid var(--color-border);
}

.pre-check .section-title {
  margin-bottom: 20px;
}

.check-list {
  list-style: none;
  margin: 0;
  counter-reset: check-counter;
}

.check-item {
  counter-increment: check-counter;
  position: relative;
  padding: 18px 0 18px 56px;
  border-bottom: 1px solid var(--color-border);
}

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

.check-item::before {
  content: counter(check-counter);
  position: absolute;
  left: 0;
  top: 18px;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background-color: var(--color-link);
  color: var(--color-white);
  font-size: 1.125rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
}

.check-item h3 {
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--color-heading);
  margin-bottom: 4px;
  line-height: 1.5;
}

.check-item p {
  font-size: 0.9375rem;
  color: var(--color-muted);
  line-height: 1.7;
  margin: 0;
  max-width: var(--content-width);
}

.check-item p a {
  font-weight: 500;
  background-color: transparent;
  padding: 0;
}

.check-item p a:hover {
  background-color: transparent;
  text-decoration: underline;
}

/* 更新摘要窄带 */
.update-strip {
  margin: 40px 0 8px;
  background-color: var(--color-bg-light);
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-link);
  border-radius: var(--radius-sm);
  padding: 14px 20px;
}

.update-strip p {
  font-size: 0.9375rem;
  color: var(--color-text);
  margin: 0;
  line-height: 1.6;
  max-width: none;
}

.update-strip strong {
  color: var(--color-heading);
  font-weight: 700;
  margin-right: 4px;
}

.update-strip a {
  font-weight: 600;
  background-color: transparent;
  padding: 0 2px;
}

.update-strip a:hover {
  background-color: transparent;
  text-decoration: underline;
}

/* ==========================================================================
   Pages - 题材索引页 cmdj/ti-cai.html
   ========================================================================== */

/* 题材档案列表 */
.archive-list {
  margin: 24px 0;
}

.archive-item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 20px;
  margin-bottom: 16px;
  background-color: var(--color-white);
}

.archive-item:last-child {
  margin-bottom: 0;
}

.archive-item:nth-child(even) {
  background-color: var(--color-bg-light);
}

.archive-name {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--color-heading);
  margin-bottom: 10px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--color-border);
  line-height: 1.5;
}

.archive-fields {
  display: grid;
  grid-template-columns: 1fr;
  gap: 6px;
  margin: 0;
}

.archive-fields dl,
.archive-fields .field-row {
  display: grid;
  grid-template-columns: 88px 1fr;
  gap: 12px;
  align-items: baseline;
  font-size: 0.9375rem;
  line-height: 1.6;
}

.archive-fields dt {
  font-weight: 600;
  color: var(--color-link);
  white-space: nowrap;
}

.archive-fields dd {
  margin: 0;
  color: var(--color-text);
}

/* ==========================================================================
   Pages - 观看场景页 cmdj/chang-jing.html
   ========================================================================== */

.page-media {
  margin: 24px 0 32px;
}

/* 场景卡片 */
.scene-section .section-title {
  margin-bottom: 8px;
}

.scene-section > p {
  margin-bottom: 24px;
}

.scene-card {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  margin-bottom: 20px;
  overflow: hidden;
}

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

.scene-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 20px;
  background-color: var(--color-bg-light);
  border-bottom: 1px solid var(--color-border);
}

.scene-card-header h3 {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--color-heading);
  margin: 0;
  line-height: 1.5;
}

.scene-tag {
  display: inline-block;
  background-color: var(--color-white);
  border: 1px solid var(--color-link);
  color: var(--color-link);
  font-size: 0.8125rem;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 999px;
  white-space: nowrap;
  line-height: 1.4;
}

.scene-card-body {
  padding: 16px 20px;
}

.scene-card-body > p {
  font-size: 0.9375rem;
  color: var(--color-text);
  margin-bottom: 12px;
  line-height: 1.7;
  max-width: var(--content-width);
}

.scene-detail {
  display: grid;
  grid-template-columns: 1fr;
  gap: 4px;
  margin: 0;
}

.scene-detail dt {
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--color-link);
  margin-top: 6px;
  line-height: 1.5;
}

.scene-detail dd {
  font-size: 0.9375rem;
  color: var(--color-text);
  margin: 0;
  line-height: 1.6;
}

/* 选择步骤 */
.choose-section {
  margin-bottom: 40px;
}

.step-note {
  background-color: var(--color-bg-light);
  border-left: 3px solid var(--color-link);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: 12px 16px;
  font-size: 0.9375rem;
  color: var(--color-muted);
  margin-top: 24px;
  line-height: 1.6;
  max-width: var(--content-width);
}

.step-note a {
  font-weight: 500;
  background-color: transparent;
  padding: 0;
}

/* 边界双栏 */
.boundary-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin: 20px 0;
}

.boundary-col {
  background-color: var(--color-bg-light);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 20px;
}

.boundary-col h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-heading);
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--color-border);
}

.boundary-col ul {
  list-style: none;
  margin: 0;
}

.boundary-col li {
  position: relative;
  padding-left: 18px;
  margin-bottom: 8px;
  font-size: 0.9375rem;
  line-height: 1.6;
}

.boundary-col li:last-child {
  margin-bottom: 0;
}

.boundary-col li::before {
  position: absolute;
  left: 0;
  top: 0;
  color: var(--color-link);
  font-weight: 700;
}

.boundary-col:first-child li::before {
  content: "✓";
  color: #2d8f4e;
}

.boundary-col:last-child li::before {
  content: "✕";
  color: #b03a3a;
}

.boundary-note {
  background-color: var(--color-bg-light);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  margin-top: 20px;
}

.boundary-note p {
  font-size: 0.9375rem;
  color: var(--color-muted);
  margin: 0;
  line-height: 1.6;
  max-width: var(--content-width);
}

.boundary-note a {
  font-weight: 600;
  background-color: transparent;
  padding: 0;
}

/* ==========================================================================
   Pages - 更新说明页 cmdj/gengxin.html
   ========================================================================== */

.intro-block {
  margin-bottom: 40px;
}

.intro-block p {
  max-width: var(--content-width);
}

/* 时间线 */
.timeline-list {
  list-style: none;
  margin: 24px 0 0;
  position: relative;
  padding-left: 0;
}

.timeline-item {
  position: relative;
  padding: 0 0 32px 36px;
  border-left: 2px solid var(--color-border);
  margin-left: 12px;
}

.timeline-item:last-child {
  border-left-color: transparent;
  padding-bottom: 0;
}

.timeline-marker {
  position: absolute;
  left: -10px;
  top: 4px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background-color: var(--color-white);
  border: 4px solid var(--color-link);
  box-sizing: border-box;
}

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

.timeline-content h3,
.timeline-batch {
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--color-heading);
  margin-bottom: 8px;
  line-height: 1.5;
}

.timeline-content p {
  font-size: 0.9375rem;
  color: var(--color-text);
  margin-bottom: 8px;
  line-height: 1.7;
  max-width: var(--content-width);
}

.timeline-content p:last-child {
  margin-bottom: 0;
}

.impact-line {
  background-color: var(--color-bg-light);
  border-radius: var(--radius-sm);
  padding: 8px 12px;
  font-size: 0.875rem;
  color: var(--color-muted);
  border-left: 3px solid var(--color-link);
}

/* 维护原则 */
.principle-list {
  list-style: none;
  margin: 0;
  counter-reset: principle-counter;
}

.principle-item {
  counter-increment: principle-counter;
  position: relative;
  padding: 16px 0 16px 52px;
  border-bottom: 1px solid var(--color-border);
}

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

.principle-item::before {
  content: counter(principle-counter);
  position: absolute;
  left: 0;
  top: 16px;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background-color: var(--color-link);
  color: var(--color-white);
  font-size: 1rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
}

.principle-item h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-heading);
  margin-bottom: 4px;
  line-height: 1.5;
}

.principle-item p {
  font-size: 0.9375rem;
  color: var(--color-muted);
  margin: 0;
  line-height: 1.7;
  max-width: var(--content-width);
}

/* ==========================================================================
   Pages - 常见问题页 cmdj/wenda.html
   ========================================================================== */

.page-figure {
  margin-bottom: 32px;
}

.page-image {
  width: 100%;
  height: auto;
  max-height: 300px;
  object-fit: cover;
}

/* 折叠问答 */
.faq-section .section-title {
  margin-bottom: 20px;
}

/* ==========================================================================
   Pages - 404 错误页
   ========================================================================== */

.error-main {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 80px 24px;
  flex: 1 0 auto;
}

.error-panel {
  text-align: center;
  max-width: 560px;
  margin: 0 auto;
}

.error-code {
  font-size: 4rem;
  font-weight: 700;
  color: var(--color-link);
  line-height: 1;
  margin-bottom: 16px;
}

.error-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-heading);
  margin-bottom: 12px;
}

.error-desc {
  font-size: 1rem;
  color: var(--color-muted);
  margin-bottom: 24px;
  line-height: 1.7;
}

.error-back {
  display: inline-block;
  padding: 12px 28px;
  background-color: var(--color-link);
  color: var(--color-white);
  border-radius: var(--radius-md);
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.5;
  margin-bottom: 32px;
}

.error-back:hover {
  background-color: var(--color-link-hover);
  color: var(--color-white);
}

.error-links {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 12px;
}

.error-links a {
  display: inline-block;
  padding: 8px 16px;
  background-color: var(--color-bg-light);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 0.9375rem;
  color: var(--color-text);
  line-height: 1.5;
}

.error-links a:hover {
  background-color: var(--color-accent-light);
  border-color: var(--color-link);
  color: var(--color-link);
}

/* ==========================================================================
   Responsive - 响应式断点
   ========================================================================== */

/* 桌面大屏 */
@media (min-width: 1400px) {
  .inner-main,
  .home-main,
  .layout-shell.sidebar-left,
  .page-layout.sidebar-left {
    max-width: var(--container-width);
  }
}

/* 平板竖屏及以下 */
@media (max-width: 1024px) {
  .layout-shell.sidebar-left,
  .page-layout.sidebar-left {
    grid-template-columns: 200px minmax(0, 1fr);
    gap: 24px;
  }

  .footer-columns {
    grid-template-columns: 1.5fr 1fr 1fr 1.5fr;
    gap: 24px;
  }
}

/* 手机端 */
@media (max-width: 768px) {
  :root {
    --space-section: 40px;
  }

  .site-header {
    position: sticky;
  }

  .header-inner {
    padding: 0 16px;
    min-height: 56px;
    gap: 12px;
  }

  .brand-name {
    font-size: 1.125rem;
  }

  /* 移动导航 */
  .nav-toggle {
    display: inline-flex;
  }

  .site-nav {
    position: relative;
  }

  .nav-list {
    display: none;
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    flex-direction: column;
    align-items: stretch;
    background-color: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
    min-width: 200px;
    padding: 8px;
    gap: 0;
    z-index: 200;
  }

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

  .nav-list li {
    width: 100%;
  }

  .nav-list a {
    display: block;
    padding: 12px 14px;
    font-size: 0.9375rem;
    border-radius: var(--radius-sm);
  }

  /* 首页容器 */
  .home-main,
  .inner-main {
    padding: 0 16px;
  }

  /* 内页布局折叠：正文优先，侧栏隐藏 */
  .layout-shell.sidebar-left,
  .page-layout.sidebar-left {
    grid-template-columns: 1fr;
    gap: 0;
    padding: 0 16px;
  }

  .sidebar,
  .page-sidebar {
    display: none;
  }

  .content-area {
    min-height: 0;
  }

  /* 页面标题区 */
  .page-header {
    padding: 16px 0 20px;
    margin-bottom: 24px;
  }

  .page-title {
    font-size: 1.5rem;
  }

  .page-description {
    font-size: 0.9375rem;
  }

  /* 面包屑 */
  .breadcrumb {
    padding-top: 14px;
    font-size: 0.8125rem;
  }

  /* 首页首屏 */
  .hero-guide {
    padding-top: 28px;
  }

  #hero-title {
    font-size: 1.5rem;
  }

  .hero-lead {
    font-size: 0.9375rem;
  }

  .hero-alert {
    font-size: 0.875rem;
    padding: 8px 12px;
  }

  .entry-item a {
    flex-direction: column;
    gap: 4px;
    padding: 12px 4px;
  }

  .entry-name {
    font-size: 1rem;
    min-width: 0;
  }

  .entry-desc {
    font-size: 0.875rem;
  }

  .quick-glance,
  .pre-check {
    padding-top: 32px;
  }

  .section-title {
    font-size: 1.25rem;
  }

  .check-item {
    padding: 16px 0 16px 48px;
  }

  .check-item::before {
    width: 36px;
    height: 36px;
    top: 16px;
    font-size: 1rem;
  }

  .update-strip {
    margin-top: 32px;
    padding: 12px 16px;
  }

  .update-strip p {
    font-size: 0.875rem;
  }

  /* 双栏表格折叠 */
  .scope-table,
  .boundary-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  /* 步骤列表 */
  .step-item {
    padding-left: 44px;
  }

  .step-item::before {
    width: 32px;
    height: 32px;
    font-size: 0.9375rem;
  }

  /* 场景卡片 */
  .scene-card-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
    padding: 14px 16px;
  }

  .scene-card-body {
    padding: 14px 16px;
  }

  .scene-tag {
    font-size: 0.75rem;
  }

  /* FAQ */
  .faq-item summary {
    padding: 12px 40px 12px 14px;
    font-size: 0.9375rem;
  }

  .faq-answer {
    padding: 0 14px 14px;
  }

  .faq-answer p {
    font-size: 0.875rem;
  }

  /* 上一篇 / 下一篇 */
  .prev-next-nav,
  .page-nav-links {
    grid-template-columns: 1fr;
    gap: 8px;
  }

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

  /* 页脚 */
  .site-footer {
    margin-top: 48px;
  }

  .footer-columns {
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    padding: 32px 16px 24px;
  }

  .footer-brand {
    grid-column: 1 / -1;
  }

  .footer-tagline {
    max-width: none;
  }

  .footer-note {
    grid-column: 1 / -1;
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
    padding: 16px;
  }

  .back-to-top {
    align-self: flex-end;
  }

  /* 404 */
  .error-main {
    padding: 60px 16px;
  }

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

  .error-title {
    font-size: 1.25rem;
  }
}

/* 小手机 */
@media (max-width: 480px) {
  .footer-columns {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .footer-brand {
    grid-column: auto;
  }

  .footer-note {
    grid-column: auto;
  }

  .archive-fields dl,
  .archive-fields .field-row {
    grid-template-columns: 1fr;
    gap: 2px;
  }

  .timeline-item {
    padding-left: 28px;
    margin-left: 8px;
  }

  .entry-item a {
    gap: 2px;
  }
}

/* ==========================================================================
   Accessibility & Motion - 可访问性与动效
   ========================================================================== */

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}

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

/* 选中文本 */
::selection {
  background-color: var(--color-accent-light);
  color: var(--color-link);
}