/* ==========================================================================
   吃瓜718 - 全站样式表
   版本: 1.0
   说明: 本样式表覆盖全站所有页面的视觉样式，包含基础、布局、组件、页面与响应式分组。
   ========================================================================== */

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

:root {
  --color-primary: #2d5016;
  --color-accent: #f5a623;
  --color-bg: #f7f3e8;
  --color-text: #333333;
  --color-white: #ffffff;
  --color-border: #e0d8c6;
  --color-muted: #6b6b6b;
  --color-light-green: #eef3e8;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --container-width: 1200px;
  --container-padding: 0 24px;
  --radius-sm: 4px;
  --radius-md: 8px;
  --transition-base: 0.25s ease;
  --shadow-card: 0 2px 8px rgba(45, 80, 22, 0.08);
  --shadow-card-hover: 0 6px 16px rgba(45, 80, 22, 0.14);
}

*,
*::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);
  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 var(--transition-base);
}

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

ul,
ol {
  list-style: none;
}

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

/* ==========================================================================
   2. Layout - 布局骨架
   ========================================================================== */

/* 全站统一容器 */
.header-inner,
.footer-inner,
.site-main,
.hero-section,
.channel-nav-section,
.featured-section,
.latest-section,
.topics-section,
.editor-picks-section,
.feedback-section,
.breadcrumb,
.page-header,
.channel-list,
.channel-preview,
.topic-section,
.topic-intro-section,
.layout-shell,
.article-list-section,
.article-detail-section,
.related-links,
.about-content,
.error-section {
  max-width: var(--container-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: 24px;
  padding-right: 24px;
}

/* 页头 */
.site-header {
  background-color: var(--color-white);
  border-bottom: 2px solid var(--color-primary);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
  gap: 24px;
}

.brand-link {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.brand-name {
  font-size: 24px;
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: 1px;
}

.brand-slogan {
  font-size: 12px;
  color: var(--color-muted);
  letter-spacing: 0.5px;
}

/* 主导航 */
.site-nav {
  display: flex;
  align-items: center;
}

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

.nav-item {
  position: relative;
}

.nav-link {
  display: block;
  padding: 8px 16px;
  font-size: 15px;
  color: var(--color-text);
  border-radius: var(--radius-sm);
  transition: background-color var(--transition-base), color var(--transition-base);
}

.nav-link:hover {
  background-color: var(--color-light-green);
  color: var(--color-primary);
}

.nav-item.is-current .nav-link,
.nav-link.is-current {
  background-color: var(--color-primary);
  color: var(--color-white);
}

/* 汉堡按钮 */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 44px;
  height: 44px;
  background: none;
  border: none;
  cursor: pointer;
  gap: 5px;
  padding: 8px;
}

.nav-toggle-bar {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--color-primary);
  border-radius: 2px;
  transition: transform var(--transition-base), opacity var(--transition-base);
}

/* 页脚 */
.site-footer {
  background-color: var(--color-primary);
  color: rgba(255, 255, 255, 0.9);
  margin-top: auto;
}

.footer-inner {
  padding-top: 48px;
  padding-bottom: 32px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
}

.footer-brand-name {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 8px;
}

.footer-brand-desc {
  font-size: 14px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.75);
  max-width: 320px;
}

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

.footer-col-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-white);
  margin-bottom: 12px;
}

.footer-nav-list li {
  margin-bottom: 6px;
}

.footer-link {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.75);
}

.footer-link:hover {
  color: var(--color-accent);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.2);
  padding: 16px 24px;
  text-align: center;
}

.copyright {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.6);
}

/* 面包屑 */
.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  padding-top: 24px;
  padding-bottom: 16px;
  font-size: 14px;
}

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

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

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

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

/* 内页统一标题区 */
.page-header {
  padding-top: 16px;
  padding-bottom: 32px;
}

.page-title {
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 8px;
}

.page-description {
  font-size: 16px;
  color: var(--color-muted);
  max-width: 720px;
}

/* 内页主容器 */
.inner-main {
  padding-bottom: 64px;
}

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

/* 区块标题 */
.section-title {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 8px;
  position: relative;
  padding-left: 14px;
}

.section-title::before {
  content: "";
  position: absolute;
  left: 0;
  top: 4px;
  bottom: 4px;
  width: 4px;
  background-color: var(--color-accent);
  border-radius: 2px;
}

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

/* 通用卡片 */
.featured-card,
.topic-card,
.channel-card,
.article-item {
  background-color: var(--color-white);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: box-shadow var(--transition-base), transform var(--transition-base);
}

.featured-card:hover,
.topic-card:hover,
.channel-card:hover,
.article-item:hover {
  box-shadow: var(--shadow-card-hover);
  transform: translateY(-3px);
}

/* ==========================================================================
   4. Pages - 页面模块样式
   ========================================================================== */

/* ---------- 首页 ---------- */

/* Hero 首屏 */
.hero-section {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 48px;
  align-items: center;
  padding-top: 56px;
  padding-bottom: 56px;
}

.hero-title {
  font-size: 36px;
  font-weight: 700;
  line-height: 1.35;
  margin-bottom: 16px;
}

.hero-desc {
  font-size: 17px;
  line-height: 1.8;
  color: var(--color-muted);
  margin-bottom: 24px;
  max-width: 460px;
}

.hero-cta {
  display: inline-block;
  background-color: var(--color-primary);
  color: var(--color-white);
  padding: 12px 28px;
  border-radius: var(--radius-md);
  font-size: 15px;
  font-weight: 600;
  transition: background-color var(--transition-base);
}

.hero-cta:hover {
  background-color: var(--color-accent);
  color: var(--color-white);
}

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

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

/* 频道导航带 */
.channel-nav-section {
  padding-top: 16px;
  padding-bottom: 40px;
}

.channel-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 16px;
}

.channel-tag {
  display: inline-flex;
  align-items: center;
  padding: 8px 20px;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: 24px;
  font-size: 14px;
  color: var(--color-text);
  transition: background-color var(--transition-base), border-color var(--transition-base), color var(--transition-base);
}

.channel-tag:hover {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-white);
}

/* 焦点报道 */
.featured-section {
  padding-top: 16px;
  padding-bottom: 48px;
}

.featured-card {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  max-width: 100%;
}

.featured-media {
  min-height: 280px;
}

.featured-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.featured-body {
  padding: 32px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.featured-heading {
  font-size: 22px;
  line-height: 1.5;
  margin-bottom: 12px;
}

.featured-excerpt {
  font-size: 15px;
  line-height: 1.8;
  color: var(--color-muted);
  margin-bottom: 20px;
}

.featured-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 15px;
  font-weight: 600;
  color: var(--color-primary);
}

.featured-link:hover {
  color: var(--color-accent);
}

/* 最新资讯列表 */
.latest-section {
  padding-top: 16px;
  padding-bottom: 48px;
}

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

.latest-item {
  background-color: var(--color-white);
  border-radius: var(--radius-md);
  padding: 20px 24px;
  box-shadow: var(--shadow-card);
  display: grid;
  grid-template-columns: 100px 1fr;
  gap: 16px 24px;
  align-items: start;
  transition: box-shadow var(--transition-base);
}

.latest-item:hover {
  box-shadow: var(--shadow-card-hover);
}

.latest-date {
  font-size: 14px;
  color: var(--color-muted);
  grid-row: 1;
}

.latest-link {
  font-size: 17px;
  font-weight: 600;
  color: var(--color-text);
  line-height: 1.5;
}

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

.latest-summary {
  font-size: 14px;
  color: var(--color-muted);
  line-height: 1.7;
  grid-column: 2;
}

/* 专题推荐 */
.topics-section {
  padding-top: 16px;
  padding-bottom: 48px;
}

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

.topic-card {
  display: flex;
  flex-direction: column;
}

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

.topic-title {
  font-size: 18px;
  padding: 16px 20px 8px;
}

.topic-excerpt,
.topic-summary {
  font-size: 14px;
  color: var(--color-muted);
  line-height: 1.7;
  padding: 0 20px;
  flex-grow: 1;
}

.topic-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-primary);
  padding: 12px 20px 16px;
}

.topic-link:hover {
  color: var(--color-accent);
}

/* 编辑推荐 */
.editor-picks-section {
  padding-top: 16px;
  padding-bottom: 48px;
}

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

.editor-pick-item {
  background-color: var(--color-white);
  border-radius: var(--radius-md);
  padding: 20px 24px;
  box-shadow: var(--shadow-card);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  transition: box-shadow var(--transition-base);
}

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

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

.pick-reason {
  font-size: 14px;
  color: var(--color-muted);
  line-height: 1.7;
}

.pick-link {
  flex-shrink: 0;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-primary);
  white-space: nowrap;
}

.pick-link:hover {
  color: var(--color-accent);
}

/* 反馈区 */
.feedback-section {
  padding-top: 16px;
  padding-bottom: 64px;
}

.feedback-content {
  background-color: var(--color-white);
  border-radius: var(--radius-md);
  padding: 32px;
  box-shadow: var(--shadow-card);
  max-width: 800px;
}

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

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

/* ---------- 频道分类页 ---------- */

.channel-list {
  padding-top: 16px;
  padding-bottom: 48px;
}

.channel-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 24px;
  margin-top: 24px;
}

.channel-card {
  display: flex;
  flex-direction: column;
}

.channel-card-media {
  min-height: 160px;
}

.channel-card-media img {
  width: 100%;
  height: 160px;
  object-fit: cover;
}

.channel-card-body {
  padding: 20px;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}

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

.channel-desc {
  font-size: 14px;
  color: var(--color-muted);
  line-height: 1.7;
  margin-bottom: 16px;
  flex-grow: 1;
}

.channel-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-primary);
}

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

/* 频道内容预览 */
.channel-preview {
  padding-top: 16px;
  padding-bottom: 48px;
}

.preview-intro {
  font-size: 15px;
  color: var(--color-muted);
  margin-bottom: 24px;
}

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

.preview-item {
  background-color: var(--color-white);
  border-radius: var(--radius-md);
  padding: 20px 24px;
  box-shadow: var(--shadow-card);
}

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

.preview-title a {
  color: var(--color-text);
}

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

.preview-summary {
  font-size: 14px;
  color: var(--color-muted);
  line-height: 1.7;
  margin-bottom: 8px;
}

.preview-channel {
  font-size: 13px;
  color: var(--color-accent);
  font-weight: 500;
}

.preview-more {
  margin-top: 24px;
}

.preview-more a {
  display: inline-block;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-primary);
  padding: 8px 0;
}

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

/* ---------- 内容专题页 ---------- */

.topic-section {
  padding-top: 16px;
  padding-bottom: 48px;
}

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

.topic-card {
  display: flex;
  flex-direction: column;
}

.topic-media {
  min-height: 200px;
}

.topic-body {
  padding: 20px;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}

.link-arrow {
  display: inline-block;
  margin-left: 4px;
  transition: transform var(--transition-base);
}

.topic-link:hover .link-arrow {
  transform: translateX(4px);
}

/* 专题介绍 */
.topic-intro-section {
  padding-top: 16px;
  padding-bottom: 48px;
}

.intro-content {
  background-color: var(--color-white);
  border-radius: var(--radius-md);
  padding: 32px;
  box-shadow: var(--shadow-card);
  max-width: 800px;
}

.intro-paragraph {
  font-size: 15px;
  line-height: 1.8;
  color: var(--color-text);
  margin-bottom: 16px;
}

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

/* ---------- 实用指南页 ---------- */

.layout-shell {
  padding-top: 16px;
  padding-bottom: 48px;
}

.guide-article {
  background-color: var(--color-white);
  border-radius: var(--radius-md);
  padding: 40px;
  box-shadow: var(--shadow-card);
  max-width: 820px;
}

.guide-hero-figure {
  margin-bottom: 24px;
  border-radius: var(--radius-md);
  overflow: hidden;
}

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

.guide-figcaption {
  font-size: 13px;
  color: var(--color-muted);
  padding: 8px 12px;
  background-color: var(--color-light-green);
}

.guide-lead {
  font-size: 17px;
  line-height: 1.9;
  color: var(--color-text);
  margin-bottom: 32px;
}

.guide-section {
  margin-bottom: 32px;
}

.guide-h2 {
  font-size: 20px;
  margin-bottom: 12px;
  padding-top: 16px;
}

.guide-h3 {
  font-size: 17px;
  margin-top: 20px;
  margin-bottom: 8px;
}

.guide-section p {
  font-size: 15px;
  line-height: 1.8;
  margin-bottom: 12px;
}

/* 相关链接 */
.related-links {
  margin-top: 32px;
  padding-top: 20px;
  border-top: 1px solid var(--color-border);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
}

.related-links-label {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-primary);
}

.related-links-item {
  font-size: 14px;
  color: var(--color-muted);
  padding: 4px 12px;
  background-color: var(--color-light-green);
  border-radius: 16px;
  transition: background-color var(--transition-base), color var(--transition-base);
}

.related-links-item:hover {
  background-color: var(--color-primary);
  color: var(--color-white);
}

/* ---------- 深度解读页 ---------- */

.article-list-section {
  padding-top: 16px;
  padding-bottom: 48px;
}

.section-intro {
  font-size: 15px;
  color: var(--color-muted);
  margin-bottom: 24px;
}

.article-item {
  display: grid;
  grid-template-columns: 1fr 240px;
  gap: 24px;
  padding: 24px;
  margin-bottom: 20px;
}

.article-text {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.article-title {
  font-size: 19px;
  margin-bottom: 8px;
}

.article-title a {
  color: var(--color-text);
}

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

.article-summary {
  font-size: 14px;
  color: var(--color-muted);
  line-height: 1.7;
  margin-bottom: 12px;
}

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

.article-media {
  min-height: 140px;
}

.article-img {
  width: 100%;
  height: 140px;
  object-fit: cover;
  border-radius: var(--radius-sm);
}

/* 文章详情 */
.article-detail-section {
  padding-top: 16px;
  padding-bottom: 48px;
}

.detail-figure {
  margin-bottom: 24px;
  border-radius: var(--radius-md);
  overflow: hidden;
}

.detail-img {
  width: 100%;
  height: 360px;
  object-fit: cover;
}

.detail-figure figcaption {
  font-size: 13px;
  color: var(--color-muted);
  padding: 8px 12px;
  background-color: var(--color-light-green);
}

.article-body {
  max-width: 820px;
}

.body-subtitle {
  font-size: 18px;
  margin-top: 24px;
  margin-bottom: 12px;
}

.article-body p {
  font-size: 15px;
  line-height: 1.8;
  margin-bottom: 12px;
}

.article-body .in-text-link {
  color: var(--color-primary);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.article-body .in-text-link:hover {
  color: var(--color-accent);
}

/* 相关推荐侧栏 */
.related-title {
  font-size: 18px;
  margin-bottom: 16px;
}

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

.related-item {
  padding-left: 14px;
  position: relative;
}

.related-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 4px;
  height: 4px;
  background-color: var(--color-accent);
  border-radius: 50%;
}

.related-link {
  font-size: 15px;
  color: var(--color-text);
  line-height: 1.6;
}

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

/* ---------- 关于本站页 ---------- */

.about-content {
  padding-top: 16px;
  padding-bottom: 48px;
}

.about-section {
  margin-bottom: 32px;
}

.section-body {
  background-color: var(--color-white);
  border-radius: var(--radius-md);
  padding: 24px 28px;
  box-shadow: var(--shadow-card);
  max-width: 820px;
}

.section-body p {
  font-size: 15px;
  line-height: 1.8;
  margin-bottom: 12px;
}

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

.principle-list {
  list-style: disc;
  padding-left: 20px;
  margin-top: 8px;
}

.principle-list li {
  font-size: 15px;
  line-height: 1.8;
  margin-bottom: 8px;
}

.feedback-list {
  margin-top: 8px;
}

.feedback-list li {
  font-size: 15px;
  line-height: 1.8;
  margin-bottom: 8px;
  padding-left: 16px;
  position: relative;
}

.feedback-list li::before {
  content: "·";
  position: absolute;
  left: 0;
  color: var(--color-accent);
  font-weight: 700;
}

.about-figure {
  margin-top: 32px;
  border-radius: var(--radius-md);
  overflow: hidden;
  max-width: 820px;
}

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

.about-figure figcaption {
  font-size: 13px;
  color: var(--color-muted);
  padding: 8px 12px;
  background-color: var(--color-light-green);
}

/* ---------- 404 页面 ---------- */

.error-main {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-grow: 1;
  padding: 48px 24px;
}

.error-section {
  text-align: center;
  max-width: 560px;
  background-color: var(--color-white);
  border-radius: var(--radius-md);
  padding: 48px 40px;
  box-shadow: var(--shadow-card);
}

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

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

.error-desc {
  font-size: 15px;
  color: var(--color-muted);
  margin-bottom: 24px;
}

.error-link {
  display: inline-block;
  background-color: var(--color-primary);
  color: var(--color-white);
  padding: 10px 28px;
  border-radius: var(--radius-md);
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 16px;
}

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

.error-help {
  font-size: 14px;
  color: var(--color-muted);
}

/* ==========================================================================
   5. Responsive - 响应式
   ========================================================================== */

/* 平板 */
@media (max-width: 992px) {
  .hero-section {
    grid-template-columns: 1fr;
    gap: 32px;
    padding-top: 40px;
  }

  .hero-title {
    font-size: 30px;
  }

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

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

  .featured-media {
    min-height: 220px;
  }

  .article-item {
    grid-template-columns: 1fr 180px;
  }

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

/* 手机 */
@media (max-width: 768px) {
  .header-inner {
    min-height: 60px;
    gap: 16px;
  }

  .brand-name {
    font-size: 20px;
  }

  .brand-slogan {
    font-size: 11px;
  }

  /* 汉堡菜单 */
  .nav-toggle {
    display: flex;
  }

  .site-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--color-white);
    border-bottom: 2px solid var(--color-primary);
    box-shadow: 0 4px 12px rgba(45, 80, 22, 0.1);
  }

  .nav-list {
    display: none;
    flex-direction: column;
    align-items: stretch;
    padding: 12px 16px;
    gap: 4px;
  }

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

  .nav-item {
    width: 100%;
  }

  .nav-link {
    padding: 12px 16px;
    font-size: 16px;
    border-radius: var(--radius-sm);
  }

  /* 页头定位 */
  .site-header {
    position: relative;
  }

  /* 页面标题 */
  .page-title {
    font-size: 24px;
  }

  /* 首页模块 */
  .hero-section {
    padding-top: 32px;
    padding-bottom: 32px;
  }

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

  .hero-image {
    height: 220px;
  }

  .channel-tags {
    gap: 8px;
  }

  .channel-tag {
    padding: 6px 14px;
    font-size: 13px;
  }

  .featured-body {
    padding: 20px;
  }

  .featured-heading {
    font-size: 18px;
  }

  .latest-item {
    grid-template-columns: 1fr;
    gap: 4px;
    padding: 16px;
  }

  .latest-date {
    grid-row: auto;
  }

  .latest-summary {
    grid-column: auto;
  }

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

  .editor-pick-item {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
    padding: 16px;
  }

  .feedback-content {
    padding: 20px;
  }

  /* 频道分类页 */
  .channel-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .preview-item {
    padding: 16px;
  }

  /* 专题页 */
  .topic-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .intro-content {
    padding: 20px;
  }

  /* 指南页 */
  .guide-article {
    padding: 20px;
  }

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

  .guide-lead {
    font-size: 16px;
  }

  .guide-h2 {
    font-size: 18px;
  }

  /* 解读页 */
  .article-item {
    grid-template-columns: 1fr;
    gap: 16px;
    padding: 16px;
  }

  .article-media {
    order: -1;
  }

  .article-img {
    height: 180px;
  }

  .detail-img {
    height: 220px;
  }

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

  /* 关于页 */
  .section-body {
    padding: 20px;
  }

  .about-image {
    height: 200px;
  }

  /* 404 */
  .error-section {
    padding: 32px 24px;
  }

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

  /* 页脚 */
  .footer-inner {
    padding-top: 32px;
    padding-bottom: 24px;
  }

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

/* 小屏手机 */
@media (max-width: 480px) {
  .brand-slogan {
    display: none;
  }

  .footer-links {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .hero-cta {
    padding: 10px 20px;
    font-size: 14px;
  }

  .channel-tag {
    padding: 6px 12px;
    font-size: 12px;
  }
}