/* ==========================================================================
   18+漫画 - 整站样式表
   作者：牛马 AI 建站
   版本：1.0
   说明：本样式表覆盖全站所有页面的布局、组件、页面专属样式及响应式规则。
   分组：Base / Layout / Components / Pages / Responsive
   ========================================================================== */

/* ==========================================================================
   Base - 基础样式、变量、重置
   ========================================================================== */
:root {
  --color-bg: #f5f7fa;
  --color-surface: #ffffff;
  --color-primary: #2ecc71;
  --color-primary-dark: #27ae60;
  --color-primary-light: #e8f8f0;
  --color-text: #333333;
  --color-text-secondary: #666666;
  --color-text-muted: #999999;
  --color-border: #e0e0e0;
  --color-border-light: #f0f0f0;
  --font-family-base: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB",
    "Microsoft YaHei", sans-serif;
  --font-family-serif: Georgia, "Times New Roman", "Songti SC", "SimSun", serif;
  --container-width: 1200px;
  --container-padding: 24px;
  --header-height: 64px;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 8px;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.1);
  --transition-base: 0.2s ease;
  --transition-smooth: 0.3s ease;
}

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

html {
  font-size: 16px;
  line-height: 1.6;
  -webkit-text-size-adjust: 100%;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-family-base);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-bg);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

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

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

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

ul,
ol {
  list-style: none;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-family-base);
  font-weight: 600;
  line-height: 1.3;
  color: var(--color-text);
}

h1 {
  font-size: 2rem;
}

h2 {
  font-size: 1.5rem;
}

h3 {
  font-size: 1.125rem;
}

p {
  margin-bottom: 1rem;
}

/* ==========================================================================
   Layout - 全站布局骨架
   ========================================================================== */

/* 站点主体 - 全站统一 */
.site-body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* 页头 - 全站统一 */
.site-header {
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 100;
  width: 100%;
}

.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: flex;
  align-items: baseline;
  gap: 8px;
  flex-shrink: 0;
}

.brand-name {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.2;
}

.brand-tag {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  white-space: nowrap;
}

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

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

.nav-list li a {
  display: block;
  padding: 8px 16px;
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  border-radius: var(--radius-md);
  transition: background-color var(--transition-base),
    color var(--transition-base);
}

.nav-list li a:hover {
  color: var(--color-primary-dark);
  background-color: var(--color-primary-light);
}

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

/* 移动端导航按钮 - 默认隐藏 */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 8px;
  background: none;
  border: none;
  cursor: pointer;
  border-radius: var(--radius-md);
  transition: background-color var(--transition-base);
}

.nav-toggle:hover {
  background-color: var(--color-border-light);
}

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

/* 主内容区 - 全站统一 */
.site-main {
  flex: 1 0 auto;
  width: 100%;
}

/* 首页主内容 */
.home-main {
  background-color: var(--color-bg);
}

/* 内页主内容 - 统一容器宽度 */
.inner-main {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 32px var(--container-padding) 64px;
  background-color: var(--color-bg);
}

/* 面包屑 - 全站内页统一 */
.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin-bottom: 24px;
  padding: 8px 0;
}

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

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

.breadcrumb-sep {
  color: var(--color-border);
}

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

/* 页面标题区 - 全站内页统一 */
.page-header {
  margin-bottom: 32px;
}

.page-title {
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 8px;
}

.page-description {
  font-size: 1rem;
  color: var(--color-text-secondary);
  max-width: 780px;
}

/* 页脚 - 全站统一 */
.site-footer {
  background-color: var(--color-surface);
  border-top: 1px solid var(--color-border);
  margin-top: auto;
}

.footer-inner {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 40px var(--container-padding) 24px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
}

.footer-col h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 16px;
  color: var(--color-text);
}

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

.footer-col ul li a {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
}

.footer-col ul li a:hover {
  color: var(--color-primary-dark);
}

.footer-bottom {
  border-top: 1px solid var(--color-border-light);
  padding: 16px var(--container-padding);
  text-align: center;
}

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

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

/* 按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 28px;
  font-size: 1rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  transition: background-color var(--transition-base),
    transform var(--transition-base), box-shadow var(--transition-base);
  min-height: 44px;
}

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

.btn-primary:hover {
  background-color: var(--color-primary-dark);
  color: var(--color-surface);
  box-shadow: var(--shadow-md);
}

.btn-secondary {
  background-color: var(--color-surface);
  color: var(--color-primary-dark);
  border: 1px solid var(--color-primary);
}

.btn-secondary:hover {
  background-color: var(--color-primary-light);
  color: var(--color-primary-dark);
}

/* 区块标题 */
.section-header {
  margin-bottom: 24px;
}

.section-header h2,
.section-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 8px;
}

.section-header p,
.section-desc {
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
}

.section-lead {
  font-size: 1rem;
  color: var(--color-text-secondary);
  margin-bottom: 24px;
}

/* 分类标签 */
.category-tags,
.category-tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.category-tag {
  display: inline-flex;
  align-items: center;
  padding: 8px 20px;
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 999px;
  transition: background-color var(--transition-base),
    color var(--transition-base), border-color var(--transition-base);
  min-height: 44px;
}

.category-tag:hover {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-surface);
}

/* 封面图容器 */
.hero-media,
.category-card-media,
.ranking-cover,
.update-cover,
.rank-media,
.update-figure,
.guide-figure,
.tool-figure {
  overflow: hidden;
  background-color: var(--color-border-light);
}

.hero-media img,
.category-card-media img,
.ranking-cover img,
.update-cover img,
.rank-media img,
.update-figure img,
.guide-figure img,
.tool-figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-smooth);
}

.hero-media:hover img,
.category-card-media:hover img,
.ranking-cover:hover img,
.update-cover:hover img,
.rank-media:hover img,
.update-figure:hover img,
.guide-figure:hover img,
.tool-figure:hover img {
  transform: scale(1.03);
}

/* 相关链接列表 */
.related-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.related-list li a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  transition: color var(--transition-base);
}

.related-list li a::before {
  content: "";
  width: 6px;
  height: 6px;
  background-color: var(--color-primary);
  border-radius: 50%;
  flex-shrink: 0;
}

.related-list li a:hover {
  color: var(--color-primary-dark);
}

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

/* Hero 区域 */
.hero-section {
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  padding: 0;
}

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

.hero-media {
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  aspect-ratio: 4 / 3;
}

.hero-content h1 {
  font-size: 2.25rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 16px;
  line-height: 1.3;
}

.hero-content p {
  font-size: 1.0625rem;
  color: var(--color-text-secondary);
  margin-bottom: 24px;
  max-width: 480px;
}

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

/* 分类导航区块 */
.category-nav-section {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 48px var(--container-padding);
}

/* 最近更新区块 */
.updates-section {
  background-color: var(--color-surface);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  padding: 48px 0;
}

.updates-section .section-header,
.updates-section .update-group {
  max-width: var(--container-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--container-padding);
  padding-right: var(--container-padding);
}

.update-group {
  margin-bottom: 32px;
}

.update-group h3 {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 16px;
  color: var(--color-text);
  padding-bottom: 8px;
  border-bottom: 2px solid var(--color-primary);
  display: inline-block;
}

.update-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.update-item {
  display: flex;
  gap: 16px;
  padding: 16px;
  background-color: var(--color-bg);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-light);
  transition: box-shadow var(--transition-base),
    transform var(--transition-base);
}

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

.update-cover {
  width: 96px;
  height: 128px;
  border-radius: var(--radius-sm);
  flex-shrink: 0;
}

.update-info {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.update-status {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.75rem;
  color: var(--color-primary-dark);
  background-color: var(--color-primary-light);
  padding: 2px 8px;
  border-radius: 999px;
  margin-bottom: 8px;
  align-self: flex-start;
}

.update-info h4 {
  font-size: 0.9375rem;
  font-weight: 600;
  margin-bottom: 4px;
  line-height: 1.4;
}

.update-info p {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  margin-bottom: 8px;
  flex: 1;
}

.update-info a {
  font-size: 0.8125rem;
  color: var(--color-primary-dark);
  font-weight: 500;
}

/* 人气榜单区块 */
.rankings-section {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 48px var(--container-padding);
}

.ranking-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-bottom: 24px;
}

.ranking-item {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 20px;
  background-color: var(--color-surface);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-light);
  transition: box-shadow var(--transition-base);
}

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

.ranking-num {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary);
  width: 48px;
  flex-shrink: 0;
  text-align: center;
}

.ranking-cover {
  width: 72px;
  height: 96px;
  border-radius: var(--radius-sm);
  flex-shrink: 0;
}

.ranking-info {
  flex: 1;
}

.ranking-info h3 {
  font-size: 1.0625rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.ranking-info p {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  margin-bottom: 0;
}

.section-footer-link {
  text-align: center;
}

.section-footer-link a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-primary-dark);
  padding: 8px 16px;
  border-radius: var(--radius-md);
  transition: background-color var(--transition-base);
}

.section-footer-link a:hover {
  background-color: var(--color-primary-light);
}

/* 指南入口区块 */
.guide-section {
  background-color: var(--color-surface);
  border-top: 1px solid var(--color-border);
  padding: 48px 0;
}

.guide-section .section-header {
  max-width: var(--container-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--container-padding);
  padding-right: var(--container-padding);
}

.guide-cards {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.guide-card {
  padding: 32px;
  background-color: var(--color-bg);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border-light);
  transition: box-shadow var(--transition-base),
    transform var(--transition-base);
}

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

.guide-card h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 12px;
}

.guide-card p {
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  margin-bottom: 16px;
}

.guide-card a {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-primary-dark);
}

/* 反馈区块 */
.feedback-section {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 48px var(--container-padding);
  text-align: left;
}

.feedback-section h2 {
  font-size: 1.25rem;
  margin-bottom: 12px;
}

.feedback-section p {
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  max-width: 720px;
}

/* ==========================================================================
   Pages - 内页通用
   ========================================================================== */

/* 分类页 */
.category-detail-section {
  margin-bottom: 48px;
}

.category-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 24px;
}

.category-card {
  background-color: var(--color-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border-light);
  overflow: hidden;
  transition: box-shadow var(--transition-base),
    transform var(--transition-base);
}

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

.category-card-media {
  aspect-ratio: 16 / 10;
}

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

.category-card-title {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.category-card-text {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  margin-bottom: 12px;
}

.category-card-link {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-primary-dark);
}

/* 相关链接区块 */
.related-links-section {
  margin-top: 48px;
  padding-top: 32px;
  border-top: 1px solid var(--color-border);
}

.related-links-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 24px;
}

.related-card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 20px;
  background-color: var(--color-surface);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-light);
  transition: box-shadow var(--transition-base);
}

.related-card:hover {
  box-shadow: var(--shadow-md);
}

.related-card-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text);
}

.related-card-text {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
}

/* 指南页 - 侧栏布局 */
.page-layout.sidebar-left {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 40px;
  align-items: start;
}

/* 侧栏在前，主内容在后 */
.page-layout.sidebar-left .sidebar-area {
  order: 1;
}

.page-layout.sidebar-left .content-area {
  order: 2;
}

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

.content-area .guide-section {
  background-color: transparent;
  border: none;
  padding: 0;
  margin-bottom: 48px;
}

.content-area .guide-section .section-title {
  font-size: 1.375rem;
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--color-primary);
  display: inline-block;
}

.guide-step {
  margin-bottom: 32px;
  padding: 24px;
  background-color: var(--color-surface);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-light);
}

.step-title {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 12px;
}

.guide-step p {
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  margin-bottom: 16px;
}

.guide-figure {
  border-radius: var(--radius-md);
  margin-top: 16px;
  aspect-ratio: 16 / 9;
}

.guide-figure figcaption {
  padding: 12px;
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  background-color: var(--color-bg);
}

/* 侧栏 */
.sidebar-area {
  min-width: 0;
}

.aside-card {
  background-color: var(--color-surface);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-light);
  padding: 24px;
  margin-bottom: 24px;
}

.aside-title {
  font-size: 1.0625rem;
  font-weight: 600;
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--color-border-light);
}

.aside-links {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.aside-links li a {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  transition: color var(--transition-base);
}

.aside-links li a:hover {
  color: var(--color-primary-dark);
}

/* 更新页 */
.update-list-section {
  margin-bottom: 48px;
}

.update-group {
  margin-bottom: 40px;
}

.update-date {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--color-primary);
  display: inline-block;
}

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

.update-item {
  background-color: var(--color-surface);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-light);
  padding: 12px;
  transition: box-shadow var(--transition-base);
}

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

.update-link {
  display: block;
}

.update-figure {
  width: 100%;
  aspect-ratio: 3 / 4;
  border-radius: var(--radius-sm);
  margin-bottom: 12px;
}

.update-info {
  padding: 0 4px;
}

.update-status {
  font-size: 0.75rem;
  color: var(--color-primary-dark);
  background-color: var(--color-primary-light);
  padding: 2px 8px;
  border-radius: 999px;
  display: inline-block;
  margin-bottom: 8px;
}

.update-title {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 4px;
  line-height: 1.4;
}

.update-time {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}

/* 更新状态说明 */
.update-status-section {
  background-color: var(--color-surface);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-light);
  padding: 32px;
  margin-bottom: 48px;
}

.status-guide p {
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  margin-bottom: 12px;
}

/* 榜单页 */
.ranking-intro {
  background-color: var(--color-surface);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-light);
  padding: 24px;
  margin-bottom: 32px;
}

.ranking-intro p {
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  margin-bottom: 0;
}

.rank-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-top: 24px;
}

.rank-item {
  display: flex;
  gap: 16px;
  padding: 20px;
  background-color: var(--color-surface);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-light);
  transition: box-shadow var(--transition-base);
}

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

.rank-num {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-primary);
  min-width: 32px;
  text-align: center;
}

.rank-media {
  width: 72px;
  height: 96px;
  border-radius: var(--radius-sm);
  flex-shrink: 0;
}

.rank-info {
  flex: 1;
  min-width: 0;
}

.rank-info h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.rank-tag {
  margin-bottom: 8px;
}

.rank-tag a {
  display: inline-block;
  font-size: 0.75rem;
  color: var(--color-primary-dark);
  background-color: var(--color-primary-light);
  padding: 2px 10px;
  border-radius: 999px;
}

.rank-desc {
  font-size: 0.8125rem;
  color: var(--color-text-secondary);
  margin-bottom: 8px;
  line-height: 1.5;
}

.rank-reason {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  margin-bottom: 0;
}

.rank-reason strong {
  color: var(--color-text-secondary);
  font-weight: 500;
}

/* 榜单理由区块 */
.ranking-reasons {
  margin-top: 48px;
  padding-top: 32px;
  border-top: 1px solid var(--color-border);
}

.reason-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 24px;
}

.reason-card {
  padding: 24px;
  background-color: var(--color-surface);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-light);
}

.reason-card h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.reason-card p {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  margin-bottom: 0;
}

/* 相关链接区块（榜单页） */
.rankings-section .related-links {
  margin-top: 48px;
  padding-top: 32px;
  border-top: 1px solid var(--color-border);
}

.rankings-section .related-links h2 {
  margin-bottom: 16px;
}

/* 追更技巧页 */
.layout-shell.sidebar-left {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 40px;
  align-items: start;
}

.layout-shell.sidebar-left .sidebar {
  order: 1;
}

.layout-shell.sidebar-left .article-content {
  order: 2;
}

.sidebar {
  min-width: 0;
}

.sidebar-card {
  background-color: var(--color-surface);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-light);
  padding: 24px;
  margin-bottom: 24px;
}

.sidebar-card h2 {
  font-size: 1.0625rem;
  font-weight: 600;
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--color-border-light);
}

.sidebar-links {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.sidebar-links li a {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  transition: color var(--transition-base);
}

.sidebar-links li a:hover {
  color: var(--color-primary-dark);
}

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

.content-section {
  background-color: var(--color-surface);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-light);
  padding: 32px;
  margin-bottom: 32px;
}

.content-section h2 {
  font-size: 1.375rem;
  font-weight: 600;
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--color-primary);
  display: inline-block;
}

.content-section p {
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  margin-bottom: 16px;
}

.tool-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin: 24px 0;
}

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

.tool-figure {
  width: 100%;
  aspect-ratio: 16 / 9;
  border-radius: var(--radius-sm);
  margin-bottom: 12px;
}

.tool-card h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.tool-card p {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  margin-bottom: 0;
}

/* 来源说明 */
.source-note {
  background-color: var(--color-bg);
  border-style: dashed;
}

.source-note p {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin-bottom: 0;
}

/* 404 页 */
.error-main {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 80px var(--container-padding);
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
}

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

.error-box h1 {
  font-size: 4rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 16px;
}

.error-box p {
  font-size: 1rem;
  color: var(--color-text-secondary);
  margin-bottom: 12px;
}

.error-actions {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 16px;
  margin: 32px 0;
}

.error-help {
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

/* ==========================================================================
   Responsive - 响应式
   ========================================================================== */

@media (max-width: 1024px) {
  .category-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

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

@media (max-width: 768px) {
  :root {
    --container-padding: 16px;
    --header-height: 56px;
  }

  h1 {
    font-size: 1.75rem;
  }

  h2 {
    font-size: 1.25rem;
  }

  /* 页头 */
  .header-inner {
    gap: 16px;
  }

  .brand-tag {
    display: none;
  }

  /* 导航按钮显示 */
  .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);
    box-shadow: var(--shadow-md);
    padding: 16px;
    display: block;
    z-index: 99;
  }

  .nav-list {
    display: none;
    flex-direction: column;
    gap: 8px;
  }

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

  .nav-list li a {
    padding: 12px 16px;
    font-size: 1rem;
  }

  /* 首页 Hero */
  .hero-section {
    grid-template-columns: 1fr;
    gap: 24px;
    padding: 32px var(--container-padding);
  }

  .hero-content h1 {
    font-size: 1.75rem;
  }

  .hero-actions {
    flex-direction: column;
  }

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

  /* 分类标签 */
  .category-tags,
  .category-tag-list {
    gap: 8px;
  }

  .category-tag {
    padding: 6px 16px;
    font-size: 0.875rem;
    min-height: 40px;
  }

  /* 更新列表 */
  .update-list {
    grid-template-columns: 1fr;
  }

  .update-items {
    grid-template-columns: 1fr;
  }

  /* 榜单 */
  .ranking-item {
    flex-wrap: wrap;
    gap: 12px;
  }

  .ranking-num {
    width: 32px;
    font-size: 1.25rem;
  }

  /* 指南卡片 */
  .guide-cards {
    grid-template-columns: 1fr;
  }

  /* 页脚 */
  .footer-inner {
    grid-template-columns: 1fr;
    gap: 24px;
    padding-top: 32px;
  }

  /* 内页 */
  .inner-main {
    padding: 24px var(--container-padding) 48px;
  }

  .page-header {
    margin-bottom: 24px;
  }

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

  /* 分类页 */
  .category-grid {
    grid-template-columns: 1fr;
  }

  .related-links-grid {
    grid-template-columns: 1fr;
  }

  /* 指南页侧栏布局 */
  .page-layout.sidebar-left {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .page-layout.sidebar-left .sidebar-area {
    order: 2;
  }

  .page-layout.sidebar-left .content-area {
    order: 1;
  }

  /* 榜单页 */
  .reason-grid {
    grid-template-columns: 1fr;
  }

  /* 追更技巧页 */
  .layout-shell.sidebar-left {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .layout-shell.sidebar-left .sidebar {
    order: 2;
  }

  .layout-shell.sidebar-left .article-content {
    order: 1;
  }

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

  .content-section {
    padding: 24px;
  }

  /* 404 */
  .error-main {
    padding: 48px var(--container-padding);
  }

  .error-box h1 {
    font-size: 3rem;
  }

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

  .error-actions .btn {
    width: 100%;
  }
}

@media (max-width: 480px) {
  .brand-name {
    font-size: 1.25rem;
  }

  .hero-content h1 {
    font-size: 1.5rem;
  }

  .update-item {
    flex-direction: row;
  }

  .update-cover {
    width: 80px;
    height: 108px;
  }

  .rank-item {
    flex-direction: row;
    flex-wrap: nowrap;
  }

  .rank-media {
    width: 64px;
    height: 88px;
  }

  .guide-card {
    padding: 24px;
  }

  .footer-bottom {
    padding: 16px;
  }
}

/* 打印样式 */
@media print {
  .site-header,
  .site-footer,
  .breadcrumb,
  .sidebar-area,
  .sidebar,
  .nav-toggle {
    display: none !important;
  }

  .site-main {
    padding: 0 !important;
  }

  .page-layout.sidebar-left,
  .layout-shell.sidebar-left {
    display: block !important;
  }
}