/* ==========================================================
   base — 全局基础样式
   ========================================================== */
:root {
  --color-bg: #F5F0E8;
  --color-bg-light: #FAF7F1;
  --color-surface: #FFFFFF;
  --color-primary: #3E4E3E;
  --color-primary-dark: #2E3B2E;
  --color-accent: #8B6F47;
  --color-accent-light: #A5896A;
  --color-text: #2C2C2C;
  --color-text-light: #5C5C5C;
  --color-text-muted: #8A8A8A;
  --color-border: #E0D8CC;
  --color-border-light: #EAE4DA;
  --color-focus: #6B7F6B;
  --font-sans: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Helvetica Neue", Arial, sans-serif;
  --container-width: 1200px;
  --container-padding: 24px;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 8px;
  --shadow-sm: 0 1px 3px rgba(44, 44, 44, 0.08);
  --shadow-md: 0 4px 12px rgba(44, 44, 44, 0.08);
  --shadow-lg: 0 8px 24px rgba(44, 44, 44, 0.1);
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --header-height: 72px;
}

*,
*::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: 1.7;
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

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

a:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 2px;
}

button {
  font-family: inherit;
  font-size: inherit;
  line-height: inherit;
  border: none;
  background: none;
  cursor: pointer;
  color: inherit;
}

button:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 2px;
}

ul,
ol {
  list-style: none;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-weight: 700;
  line-height: 1.3;
  color: var(--color-text);
}

h1 {
  font-size: 32px;
}

h2 {
  font-size: 24px;
}

h3 {
  font-size: 20px;
}

p {
  margin-bottom: 16px;
}

figure {
  margin: 0;
}

/* ==========================================================
   layout — 全站骨架布局
   ========================================================== */

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

.site-main {
  flex: 1 0 auto;
  width: 100%;
}

/* ---- 页头 ---- */
.site-header {
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-border-light);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow-sm);
}

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

.brand-logo {
  display: inline-flex;
  align-items: center;
  font-size: 20px;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1.2;
  white-space: nowrap;
}

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

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

.nav-list {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-list li {
  position: relative;
}

.nav-list a {
  display: block;
  padding: 8px 16px;
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text);
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast), background-color var(--transition-fast);
}

.nav-list a:hover {
  color: var(--color-primary);
  background-color: rgba(62, 78, 62, 0.08);
}

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

.nav-list a.is-current::after {
  content: "";
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: 2px;
  height: 2px;
  background-color: var(--color-primary);
  border-radius: 1px;
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  border-radius: var(--radius-sm);
  transition: background-color var(--transition-fast);
}

.nav-toggle:hover {
  background-color: rgba(62, 78, 62, 0.08);
}

.nav-toggle-bar {
  display: block;
  width: 22px;
  height: 2px;
  background-color: var(--color-primary);
  border-radius: 1px;
  transition: transform var(--transition-normal), opacity var(--transition-normal);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ---- 页脚 ---- */
.site-footer {
  background-color: var(--color-primary);
  color: rgba(255, 255, 255, 0.85);
  margin-top: auto;
}

.footer-inner {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 48px var(--container-padding) 24px;
  display: grid;
  grid-template-columns: 1.2fr 2.8fr;
  gap: 48px;
}

.footer-brand .footer-logo {
  font-size: 18px;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 12px;
}

.footer-brand p {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.7);
  line-height: 1.7;
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.footer-col h4 {
  font-size: 14px;
  font-weight: 600;
  color: #FFFFFF;
  margin-bottom: 16px;
}

.footer-col ul li {
  margin-bottom: 10px;
}

.footer-col ul a {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.7);
  transition: color var(--transition-fast);
}

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

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  padding: 16px var(--container-padding);
  text-align: center;
}

.footer-bottom p {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.6);
  margin-bottom: 0;
}

/* ---- 内页通用骨架 ---- */
.inner-main {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--container-padding) 64px;
  width: 100%;
}

.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  padding: 20px 0 8px;
  font-size: 14px;
  color: var(--color-text-muted);
}

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

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

.breadcrumb-sep {
  color: var(--color-border);
  font-size: 12px;
}

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

.page-header {
  padding: 16px 0 32px;
}

.page-title {
  font-size: 32px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 12px;
  line-height: 1.3;
}

.page-description {
  font-size: 16px;
  color: var(--color-text-light);
  max-width: 720px;
  margin-bottom: 0;
}

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

/* ---- 按钮 ---- */
.btn-primary,
.btn-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 10px 28px;
  font-size: 15px;
  font-weight: 500;
  border-radius: var(--radius-sm);
  transition: background-color var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast);
}

.btn-primary {
  background-color: var(--color-primary);
  color: #FFFFFF;
}

.btn-primary:hover {
  background-color: var(--color-primary-dark);
  color: #FFFFFF;
  transform: translateY(-1px);
}

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

.btn-ghost:hover {
  background-color: var(--color-primary);
  color: #FFFFFF;
}

/* ---- 区块标题 ---- */
.section-title {
  font-size: 24px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 24px;
  position: relative;
  padding-bottom: 12px;
}

.section-title::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 40px;
  height: 3px;
  background-color: var(--color-accent);
  border-radius: 2px;
}

.section-desc {
  font-size: 15px;
  color: var(--color-text-light);
  margin-bottom: 24px;
  max-width: 720px;
}

/* ---- 文字链接 ---- */
.text-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-accent);
  transition: color var(--transition-fast), gap var(--transition-fast);
}

.text-link:hover {
  color: var(--color-primary);
  gap: 10px;
}

.text-link::after {
  content: "→";
  font-size: 16px;
  line-height: 1;
}

/* ---- 图文容器 ---- */
.content-media {
  overflow: hidden;
  border-radius: var(--radius-md);
  background-color: var(--color-border-light);
}

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

.content-media figcaption {
  padding: 12px 16px;
  font-size: 13px;
  color: var(--color-text-muted);
  background-color: var(--color-bg-light);
  border-top: 1px solid var(--color-border-light);
}

.content-media-inline {
  max-width: 480px;
  margin: 24px auto;
}

.content-media-inline img {
  aspect-ratio: 16 / 9;
}

/* ==========================================================
   components — 焦点报道卡片（首页）
   ========================================================== */

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

.focus-report-card {
  background-color: var(--color-surface);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition-normal), transform var(--transition-normal);
}

.focus-report-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.focus-report-card img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.focus-report-body {
  padding: 20px 24px 24px;
}

.report-tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  color: var(--color-accent);
  background-color: rgba(139, 111, 71, 0.1);
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  margin-bottom: 12px;
}

.focus-report-body h3 {
  font-size: 18px;
  margin-bottom: 10px;
  line-height: 1.4;
}

.focus-report-body h3 a {
  color: var(--color-text);
}

.focus-report-body h3 a:hover {
  color: var(--color-primary);
}

.focus-report-body p {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.7;
  margin-bottom: 16px;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ==========================================================
   components — 频道标签（首页）
   ========================================================== */

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

.tag-item {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 8px 20px;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-primary);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 22px;
  transition: background-color var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast);
}

.tag-item:hover {
  background-color: var(--color-primary);
  color: #FFFFFF;
  border-color: var(--color-primary);
}

/* ==========================================================
   components — 资讯列表（首页）
   ========================================================== */

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

.news-item {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 20px;
  padding: 20px 0;
  border-bottom: 1px solid var(--color-border-light);
  transition: background-color var(--transition-fast);
}

.news-item:first-child {
  padding-top: 0;
}

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

.news-item:hover h3 a {
  color: var(--color-primary);
}

.news-meta {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.news-meta time {
  font-size: 13px;
  color: var(--color-text-muted);
}

.news-category {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  color: var(--color-accent);
  background-color: rgba(139, 111, 71, 0.1);
  padding: 3px 8px;
  border-radius: var(--radius-sm);
  width: fit-content;
}

.news-item h3 {
  font-size: 16px;
  line-height: 1.5;
  margin-bottom: 6px;
}

.news-item h3 a {
  color: var(--color-text);
  transition: color var(--transition-fast);
}

.news-item p {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.6;
  margin-bottom: 0;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ==========================================================
   components — 专题卡片（首页）
   ========================================================== */

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

.topic-card {
  background-color: var(--color-surface);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition-normal), transform var(--transition-normal);
}

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

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

.topic-card-body {
  padding: 24px;
}

.topic-card-body h3 {
  font-size: 18px;
  margin-bottom: 10px;
}

.topic-card-body h3 a {
  color: var(--color-text);
}

.topic-card-body h3 a:hover {
  color: var(--color-primary);
}

.topic-card-body p {
  font-size: 14px;
  color: var(--color-text-light);
  margin-bottom: 16px;
}

/* ==========================================================
   components — 编辑推荐（首页）
   ========================================================== */

.editor-picks-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.pick-item {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  padding: 20px 24px;
  background-color: var(--color-surface);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition-normal);
}

.pick-item:hover {
  box-shadow: var(--shadow-md);
}

.pick-index {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  font-weight: 700;
  color: var(--color-accent);
  background-color: rgba(139, 111, 71, 0.1);
  border-radius: var(--radius-sm);
}

.pick-content {
  flex: 1;
}

.pick-content h3 {
  font-size: 16px;
  margin-bottom: 6px;
}

.pick-content h3 a {
  color: var(--color-text);
}

.pick-content h3 a:hover {
  color: var(--color-primary);
}

.pick-content p {
  font-size: 14px;
  color: var(--color-text-light);
  margin-bottom: 0;
  line-height: 1.6;
}

/* ==========================================================
   components — 频道卡片（频道分类页）
   ========================================================== */

.channel-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.channel-card {
  background-color: var(--color-surface);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition-normal), transform var(--transition-normal);
}

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

.channel-card img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

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

.channel-card-body h3 {
  font-size: 16px;
  margin-bottom: 8px;
}

.channel-card-body p {
  font-size: 13px;
  color: var(--color-text-light);
  line-height: 1.6;
  margin-bottom: 12px;
}

.channel-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 13px;
  font-weight: 500;
  color: var(--color-accent);
}

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

.channel-link::after {
  content: "→";
  font-size: 14px;
}

/* ---- 频道概览 ---- */
.overview-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.overview-item {
  background-color: var(--color-surface);
  padding: 20px 24px;
  border-radius: var(--radius-md);
  border-left: 3px solid var(--color-accent);
  box-shadow: var(--shadow-sm);
}

.overview-item h3 {
  font-size: 15px;
  margin-bottom: 8px;
}

.overview-item p {
  font-size: 14px;
  color: var(--color-text-light);
  margin-bottom: 0;
  line-height: 1.6;
}

.channel-note {
  margin-top: 32px;
  padding: 20px 24px;
  background-color: var(--color-bg-light);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-light);
  font-size: 14px;
  color: var(--color-text-light);
}

.channel-note a {
  font-weight: 500;
  color: var(--color-accent);
}

/* ==========================================================
   components — 专题列表（内容专题页）
   ========================================================== */

.topic-items {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.topic-item {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 24px;
  background-color: var(--color-surface);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition-normal);
}

.topic-item:hover {
  box-shadow: var(--shadow-md);
}

.topic-media {
  overflow: hidden;
  background-color: var(--color-border-light);
}

.topic-media img {
  width: 100%;
  height: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.topic-content {
  padding: 24px 24px 24px 0;
}

.topic-content h3 {
  font-size: 18px;
  margin-bottom: 10px;
}

.topic-content h3 a {
  color: var(--color-text);
}

.topic-content h3 a:hover {
  color: var(--color-primary);
}

.topic-content p {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.7;
  margin-bottom: 8px;
}

.topic-content .text-link {
  margin-top: 8px;
}

/* ---- 专题介绍 ---- */
.intro-block {
  background-color: var(--color-surface);
  padding: 24px 32px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}

.intro-block p {
  font-size: 15px;
  color: var(--color-text-light);
  line-height: 1.8;
  margin-bottom: 12px;
}

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

/* ---- 相关推荐 ---- */
.topic-related {
  margin-top: 40px;
}

.related-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.related-links a {
  display: inline-block;
  padding: 10px 20px;
  font-size: 14px;
  color: var(--color-primary);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  transition: background-color var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast);
}

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

/* ==========================================================
   components — 指南步骤（实用指南页）
   ========================================================== */

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

.guide-section-head {
  margin-bottom: 24px;
}

.guide-section-head h2 {
  font-size: 22px;
  margin-bottom: 8px;
}

.guide-section-desc {
  font-size: 15px;
  color: var(--color-text-light);
  margin-bottom: 0;
}

.guide-steps {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.guide-step {
  display: flex;
  gap: 20px;
  align-items: flex-start;
  background-color: var(--color-surface);
  padding: 24px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}

.step-number {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 700;
  color: #FFFFFF;
  background-color: var(--color-primary);
  border-radius: 50%;
}

.step-body {
  flex: 1;
}

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

.step-body p {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.7;
  margin-bottom: 0;
}

/* ---- 指南提示 ---- */
.guide-tips {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-top: 16px;
}

.guide-tip {
  background-color: var(--color-bg-light);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.6;
}

/* ---- 安全列表 ---- */
.guide-safe-list {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 16px;
}

.guide-safe-item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  font-size: 14px;
  color: var(--color-primary);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
}

.guide-safe-item::before {
  content: "✓";
  font-weight: 700;
  color: var(--color-accent);
}

/* ---- 指南反馈 ---- */
.guide-feedback {
  background-color: var(--color-surface);
  border-radius: var(--radius-md);
  padding: 32px;
  box-shadow: var(--shadow-sm);
  margin-top: 40px;
}

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

.guide-feedback p {
  font-size: 15px;
  color: var(--color-text-light);
  margin-bottom: 0;
}

.guide-feedback a {
  font-weight: 500;
  color: var(--color-accent);
}

/* ---- 指南配图 ---- */
.guide-figure {
  margin: 32px 0;
  border-radius: var(--radius-md);
  overflow: hidden;
  background-color: var(--color-border-light);
}

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

.guide-figure figcaption {
  padding: 10px 16px;
  font-size: 13px;
  color: var(--color-text-muted);
  background-color: var(--color-bg-light);
  border-top: 1px solid var(--color-border-light);
}

/* ==========================================================
   components — FAQ 手风琴（常见问题页）
   ========================================================== */

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

.faq-item {
  background-color: var(--color-surface);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-light);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: box-shadow var(--transition-normal);
}

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

.faq-item[open] {
  box-shadow: var(--shadow-md);
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px;
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text);
  cursor: pointer;
  list-style: none;
  transition: color var(--transition-fast);
}

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

.faq-question::after {
  content: "+";
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  font-weight: 400;
  color: var(--color-accent);
  border: 1px solid var(--color-border);
  border-radius: 50%;
  transition: transform var(--transition-normal), background-color var(--transition-fast), color var(--transition-fast);
}

.faq-item[open] .faq-question {
  color: var(--color-primary);
}

.faq-item[open] .faq-question::after {
  transform: rotate(45deg);
  background-color: var(--color-primary);
  color: #FFFFFF;
  border-color: var(--color-primary);
}

.faq-answer {
  padding: 0 24px 20px;
}

.faq-answer p {
  font-size: 15px;
  color: var(--color-text-light);
  line-height: 1.7;
  margin-bottom: 0;
}

/* ---- FAQ 相关推荐 ---- */
.faq-related {
  margin-top: 48px;
}

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

.related-card {
  display: block;
  background-color: var(--color-surface);
  border-radius: var(--radius-md);
  padding: 24px;
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition-normal), transform var(--transition-normal);
}

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

.related-card h3 {
  font-size: 16px;
  margin-bottom: 8px;
  color: var(--color-text);
}

.related-card:hover h3 {
  color: var(--color-primary);
}

.related-card p {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.6;
  margin-bottom: 0;
}

/* ==========================================================
   pages — 首页
   ========================================================== */

.home-main {
  width: 100%;
}

/* ---- Hero 区 ---- */
.hero-section {
  background-color: var(--color-primary);
  color: #FFFFFF;
  padding: 64px 0;
}

.hero-section .hero-content,
.hero-section .hero-figure {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.hero-section {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  align-items: center;
  gap: 48px;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 64px var(--container-padding);
}

.hero-content h1 {
  font-size: 32px;
  color: #FFFFFF;
  margin-bottom: 16px;
  line-height: 1.3;
}

.hero-lead {
  font-size: 16px;
  color: rgba(255, 255, 255, 0.85);
  line-height: 1.7;
  margin-bottom: 28px;
  max-width: 480px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.hero-actions .btn-primary {
  background-color: #FFFFFF;
  color: var(--color-primary);
}

.hero-actions .btn-primary:hover {
  background-color: var(--color-bg);
}

.hero-actions .btn-ghost {
  border-color: rgba(255, 255, 255, 0.6);
  color: #FFFFFF;
}

.hero-actions .btn-ghost:hover {
  background-color: rgba(255, 255, 255, 0.1);
  border-color: #FFFFFF;
}

.hero-figure {
  overflow: hidden;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  background-color: rgba(255, 255, 255, 0.1);
}

.hero-figure img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

/* ---- 首页各区块 ---- */
.focus-report-section,
.channel-nav-section,
.latest-news-section,
.topic-cards-section,
.editor-picks-section,
.source-feedback-section {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 56px var(--container-padding);
  width: 100%;
}

.focus-report-section {
  padding-top: 56px;
}

.channel-nav-section {
  background-color: var(--color-bg-light);
  border-top: 1px solid var(--color-border-light);
  border-bottom: 1px solid var(--color-border-light);
}

.latest-news-section {
  background-color: var(--color-surface);
}

.topic-cards-section {
  background-color: var(--color-bg);
}

.editor-picks-section {
  background-color: var(--color-bg-light);
  border-top: 1px solid var(--color-border-light);
}

.source-feedback-section {
  background-color: var(--color-surface);
  border-top: 1px solid var(--color-border-light);
}

.source-feedback-section p {
  font-size: 15px;
  color: var(--color-text-light);
  line-height: 1.8;
  max-width: 760px;
  margin-bottom: 12px;
}

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

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

.channel-section {
  margin-bottom: 48px;
}

.channel-overview {
  margin-bottom: 32px;
}

/* ==========================================================
   pages — 内容专题页
   ========================================================== */

.topic-list {
  margin-bottom: 48px;
}

.topic-intro {
  margin-bottom: 24px;
}

/* ==========================================================
   pages — 实用指南页
   ========================================================== */

.guide-content {
  max-width: 860px;
}

/* ==========================================================
   pages — 常见问题页
   ========================================================== */

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

.faq-section h2 {
  font-size: 22px;
  margin-bottom: 20px;
}

/* ==========================================================
   pages — 404 页
   ========================================================== */

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

.error-content {
  text-align: center;
  max-width: 560px;
}

.error-content h1 {
  font-size: 48px;
  color: var(--color-primary);
  margin-bottom: 16px;
}

.error-lead {
  font-size: 20px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 12px;
}

.error-desc {
  font-size: 15px;
  color: var(--color-text-light);
  margin-bottom: 32px;
}

.error-back {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 10px 32px;
  font-size: 15px;
  font-weight: 500;
  color: #FFFFFF;
  background-color: var(--color-primary);
  border-radius: var(--radius-sm);
  transition: background-color var(--transition-fast);
}

.error-back:hover {
  background-color: var(--color-primary-dark);
  color: #FFFFFF;
}

/* ==========================================================
   responsive — 响应式适配
   ========================================================== */

/* ---- 平板及以下 ---- */
@media (max-width: 1024px) {
  .channel-grid {
    grid-template-columns: repeat(3, 1fr);
  }

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

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

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

  .topic-item {
    grid-template-columns: 220px 1fr;
  }
}

/* ---- 手机断点 ---- */
@media (max-width: 768px) {
  :root {
    --container-padding: 16px;
    --header-height: 60px;
  }

  h1 {
    font-size: 26px;
  }

  h2 {
    font-size: 20px;
  }

  h3 {
    font-size: 17px;
  }

  /* 页头 */
  .header-inner {
    height: var(--header-height);
    gap: 12px;
  }

  .brand-logo {
    font-size: 17px;
  }

  .nav-toggle {
    display: flex;
  }

  .site-nav {
    position: absolute;
    top: var(--header-height);
    left: 0;
    right: 0;
    background-color: var(--color-surface);
    border-bottom: 1px solid var(--color-border-light);
    box-shadow: var(--shadow-md);
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-normal);
  }

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

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

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

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

  .nav-list a {
    padding: 14px 8px;
    font-size: 16px;
  }

  .nav-list a.is-current::after {
    display: none;
  }

  .nav-list a.is-current {
    background-color: rgba(62, 78, 62, 0.06);
  }

  /* 页脚 */
  .footer-inner {
    padding: 32px var(--container-padding) 16px;
    gap: 24px;
  }

  .footer-links {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }

  .footer-col h4 {
    margin-bottom: 12px;
  }

  .footer-bottom {
    padding: 12px var(--container-padding);
  }

  /* 内页 */
  .inner-main {
    padding: 0 var(--container-padding) 40px;
  }

  .breadcrumb {
    padding: 16px 0 4px;
    font-size: 13px;
  }

  .page-header {
    padding: 12px 0 24px;
  }

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

  .page-description {
    font-size: 15px;
  }

  /* 首页 Hero */
  .hero-section {
    grid-template-columns: 1fr;
    gap: 24px;
    padding: 40px var(--container-padding);
  }

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

  .hero-lead {
    font-size: 15px;
    margin-bottom: 20px;
  }

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

  .hero-actions .btn-primary,
  .hero-actions .btn-ghost {
    width: 100%;
  }

  .hero-figure {
    order: 2;
  }

  /* 首页区块 */
  .focus-report-section,
  .channel-nav-section,
  .latest-news-section,
  .topic-cards-section,
  .editor-picks-section,
  .source-feedback-section {
    padding: 40px var(--container-padding);
  }

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

  .focus-report-grid,
  .topic-cards {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .focus-report-body {
    padding: 16px 20px 20px;
  }

  .focus-report-body h3 {
    font-size: 17px;
  }

  .channel-tags {
    gap: 8px;
  }

  .tag-item {
    padding: 6px 14px;
    font-size: 13px;
    min-height: 40px;
  }

  .news-item {
    grid-template-columns: 1fr;
    gap: 8px;
    padding: 16px 0;
  }

  .news-meta {
    flex-direction: row;
    align-items: center;
    gap: 12px;
  }

  .news-item h3 {
    font-size: 15px;
  }

  .news-item p {
    font-size: 13px;
  }

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

  .topic-card-body h3 {
    font-size: 17px;
  }

  .pick-item {
    padding: 16px;
    gap: 14px;
  }

  .pick-index {
    width: 32px;
    height: 32px;
    font-size: 14px;
  }

  .pick-content h3 {
    font-size: 15px;
  }

  .pick-content p {
    font-size: 13px;
  }

  /* 频道页 */
  .channel-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }

  .channel-card-body {
    padding: 14px;
  }

  .channel-card-body h3 {
    font-size: 15px;
  }

  .channel-card-body p {
    font-size: 12px;
    margin-bottom: 8px;
  }

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

  .overview-item {
    padding: 16px 20px;
  }

  .channel-note {
    padding: 16px;
    font-size: 13px;
  }

  /* 专题页 */
  .topic-item {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .topic-media img {
    aspect-ratio: 16 / 9;
  }

  .topic-content {
    padding: 16px 20px 20px;
  }

  .topic-content h3 {
    font-size: 17px;
  }

  .intro-block {
    padding: 20px;
  }

  .related-links {
    gap: 8px;
  }

  .related-links a {
    padding: 8px 14px;
    font-size: 13px;
  }

  /* 指南页 */
  .guide-section-head h2 {
    font-size: 19px;
  }

  .guide-step {
    padding: 16px;
    gap: 14px;
  }

  .step-number {
    width: 32px;
    height: 32px;
    font-size: 15px;
  }

  .step-body h3 {
    font-size: 15px;
  }

  .step-body p {
    font-size: 13px;
  }

  .guide-tips {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .guide-safe-item {
    padding: 8px 14px;
    font-size: 13px;
  }

  .guide-feedback {
    padding: 24px 20px;
  }

  .guide-figure img {
    aspect-ratio: 16 / 9;
  }

  /* FAQ 页 */
  .faq-question {
    padding: 16px 20px;
    font-size: 15px;
  }

  .faq-answer {
    padding: 0 20px 16px;
  }

  .faq-answer p {
    font-size: 14px;
  }

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

  .related-card {
    padding: 20px;
  }

  .content-media-inline {
    margin: 16px auto;
  }

  /* 404 */
  .error-main {
    padding: 40px var(--container-padding);
    min-height: 50vh;
  }

  .error-content h1 {
    font-size: 36px;
  }

  .error-lead {
    font-size: 18px;
  }
}

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

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

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

  .footer-brand .footer-logo {
    font-size: 16px;
  }

  .footer-brand p {
    font-size: 13px;
  }

  .footer-col h4 {
    font-size: 13px;
  }

  .footer-col ul a {
    font-size: 13px;
  }

  .hero-actions {
    gap: 12px;
  }

  .btn-primary,
  .btn-ghost {
    padding: 10px 20px;
    font-size: 14px;
  }

  .tag-item {
    min-height: 36px;
    padding: 4px 12px;
    font-size: 12px;
  }

  .news-meta time {
    font-size: 12px;
  }

  .news-category {
    font-size: 11px;
    padding: 2px 6px;
  }

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

  .guide-steps {
    gap: 12px;
  }

  .guide-step {
    flex-direction: column;
  }

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

  .related-links {
    flex-direction: column;
    align-items: stretch;
  }

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

  .faq-question {
    padding: 14px 16px;
    font-size: 14px;
  }

  .faq-question::after {
    width: 20px;
    height: 20px;
    font-size: 16px;
  }

  .faq-answer {
    padding: 0 16px 14px;
  }
}

/* ==========================================================
   utilities — 辅助与动效
   ========================================================== */

/* 滚动出现动画（不阻塞初始可见性） */
@media (prefers-reduced-motion: no-preference) {
  .site-main section[id] {
    animation: fadeInUp 0.5s ease both;
  }

  .site-main section[id]:nth-child(2) {
    animation-delay: 0.05s;
  }

  .site-main section[id]:nth-child(3) {
    animation-delay: 0.1s;
  }

  .site-main section[id]:nth-child(4) {
    animation-delay: 0.15s;
  }

  .site-main section[id]:nth-child(5) {
    animation-delay: 0.2s;
  }

  .site-main section[id]:nth-child(6) {
    animation-delay: 0.25s;
  }

  @keyframes fadeInUp {
    from {
      opacity: 1;
      transform: translateY(8px);
    }
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }
}

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

/* 选中文本 */
::selection {
  background-color: rgba(139, 111, 71, 0.2);
  color: var(--color-text);
}

/* 滚动条（非必需，增强体验） */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background-color: var(--color-bg);
}

::-webkit-scrollbar-thumb {
  background-color: var(--color-border);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background-color: var(--color-accent-light);
}