/* =========================================================
   虫虫漫画 · 全站样式表
   版本：1.0
   说明：本样式表服务于已锁定的整站 DOM，覆盖首页、内页、
         列表、侧栏、卡片、步骤、榜单与页脚等全部真实模块。
   ========================================================= */

/* =========================================================
   01. Base —— 变量、重置、全局基础
   ========================================================= */
:root {
  --color-bg: #ffffff;
  --color-bg-gray: #f5f5f5;
  --color-text: #333333;
  --color-text-light: #666666;
  --color-text-muted: #888888;
  --color-primary: #1a73e8;
  --color-primary-light: #e8f0fe;
  --color-primary-dark: #1558b0;
  --color-border: #e0e0e0;
  --color-card-bg: #ffffff;
  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-size-base: 16px;
  --font-size-small: 14px;
  --font-size-xs: 13px;
  --font-size-h1: 32px;
  --font-size-h2: 24px;
  --font-size-h3: 18px;
  --line-height-base: 1.6;
  --line-height-heading: 1.3;
  --container-width: 1200px;
  --container-padding: 24px;
  --radius-small: 4px;
  --radius-medium: 8px;
  --shadow-card: 0 2px 8px rgba(0, 0, 0, 0.08);
  --shadow-card-hover: 0 8px 24px rgba(0, 0, 0, 0.12);
  --transition-base: 0.2s ease;
}

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

html {
  font-size: var(--font-size-base);
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: var(--line-height-base);
  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);
  text-decoration: none;
  transition: color var(--transition-base);
}

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

ul,
ol {
  list-style: none;
}

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

/* 统一容器宽度 */
.container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding-left: var(--container-padding);
  padding-right: var(--container-padding);
}

/* 通用区块标题 */
.section-title {
  font-size: var(--font-size-h2);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 8px;
}

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

/* =========================================================
   02. Layout —— 全站骨架、页头、页脚、面包屑
   ========================================================= */

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

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 64px;
  gap: 16px;
}

.brand {
  display: flex;
  flex-direction: column;
  gap: 2px;
  flex-shrink: 0;
}

.brand-name {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1.2;
}

.brand-slogan {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  line-height: 1.2;
}

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

.nav-list {
  display: flex;
  align-items: center;
  gap: 8px;
  list-style: none;
}

.nav-item {
  position: relative;
}

.nav-link {
  display: block;
  padding: 10px 16px;
  font-size: var(--font-size-small);
  font-weight: 400;
  color: var(--color-text);
  border-radius: var(--radius-small);
  transition: background-color var(--transition-base), color var(--transition-base);
}

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

.nav-link.is-current {
  color: var(--color-primary);
  font-weight: 700;
  background-color: var(--color-primary-light);
}

/* 移动端汉堡按钮 */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 10px;
  background: none;
  border: none;
  cursor: pointer;
  border-radius: var(--radius-small);
}

.nav-toggle:hover {
  background-color: var(--color-bg-gray);
}

.nav-toggle-bar {
  display: block;
  width: 22px;
  height: 2px;
  background-color: var(--color-text);
  border-radius: 1px;
  margin: 0 auto;
}

/* ---------- 页脚 ---------- */
.site-footer {
  background-color: var(--color-bg-gray);
  border-top: 1px solid var(--color-border);
  margin-top: auto;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  padding-top: 48px;
  padding-bottom: 32px;
}

.footer-title {
  font-size: var(--font-size-h3);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 16px;
}

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

.footer-links a {
  font-size: var(--font-size-small);
  color: var(--color-text-light);
  transition: color var(--transition-base);
}

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

.footer-brand-text {
  font-size: var(--font-size-small);
  color: var(--color-text-light);
  line-height: 1.6;
}

.footer-bottom {
  border-top: 1px solid var(--color-border);
  padding-top: 16px;
  padding-bottom: 16px;
}

.footer-bottom-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
}

.copyright {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

/* ---------- 面包屑 ---------- */
.breadcrumb {
  max-width: var(--container-width);
  margin: 16px auto 0;
  padding-left: var(--container-padding);
  padding-right: var(--container-padding);
  font-size: var(--font-size-small);
  color: var(--color-text-muted);
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
}

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

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

.breadcrumb-sep {
  color: var(--color-text-muted);
  font-size: var(--font-size-xs);
}

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

/* ---------- 内页统一骨架 ---------- */
.site-main {
  flex: 1 0 auto;
}

.inner-main {
  padding-bottom: 64px;
}

/* 内页页面标题区 */
.page-header {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 32px var(--container-padding) 8px;
}

.page-title {
  font-size: var(--font-size-h1);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 12px;
}

.page-description {
  font-size: var(--font-size-base);
  color: var(--color-text-light);
  line-height: var(--line-height-base);
  max-width: 720px;
}

/* ---------- 首页主区 ---------- */
.home-main {
  padding-bottom: 0;
}

/* =========================================================
   03. Components —— 通用组件
   ========================================================= */

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 28px;
  font-size: var(--font-size-base);
  font-weight: 500;
  border-radius: var(--radius-medium);
  cursor: pointer;
  transition: background-color var(--transition-base), box-shadow var(--transition-base), transform var(--transition-base);
  min-height: 44px;
  border: 2px solid transparent;
}

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

.btn-primary:hover {
  background-color: var(--color-primary-dark);
  color: var(--color-bg);
  box-shadow: 0 4px 12px rgba(26, 115, 232, 0.3);
  transform: translateY(-1px);
}

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

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

/* ---------- 卡片通用悬停 ---------- */
.update-card,
.topic-card,
.guide-card,
.genre-card,
.recommend-card,
.recommend-item {
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.update-card:hover,
.topic-card:hover,
.guide-card:hover,
.genre-card:hover,
.recommend-card:hover,
.recommend-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
}

/* ---------- 图片通用约束 ---------- */
figure {
  margin: 0;
}

/* =========================================================
   04. Pages —— 首页
   ========================================================= */

/* ---------- 首屏 Hero ---------- */
.hero-section {
  background-color: var(--color-bg-gray);
  border-bottom: 1px solid var(--color-border);
}

.hero-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 48px;
  padding-top: 56px;
  padding-bottom: 56px;
}

.hero-copy {
  min-width: 0;
}

.hero-title {
  font-size: 36px;
  font-weight: 700;
  line-height: 1.25;
  color: var(--color-text);
  margin-bottom: 16px;
}

.hero-description {
  font-size: var(--font-size-base);
  line-height: 1.7;
  color: var(--color-text-light);
  margin-bottom: 28px;
  max-width: 520px;
}

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

.hero-media {
  min-width: 0;
}

.hero-image {
  width: 100%;
  height: auto;
  max-height: 420px;
  object-fit: cover;
  border-radius: var(--radius-medium);
  aspect-ratio: 4 / 3;
}

/* ---------- 题材分类导航 ---------- */
.genre-nav-section {
  padding-top: 48px;
  padding-bottom: 48px;
  background-color: var(--color-bg);
}

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

.genre-tag {
  display: inline-flex;
  align-items: center;
  padding: 10px 20px;
  background-color: var(--color-primary-light);
  color: var(--color-primary);
  font-size: var(--font-size-small);
  font-weight: 500;
  border-radius: var(--radius-medium);
  transition: background-color var(--transition-base), color var(--transition-base), transform var(--transition-base);
  min-height: 44px;
}

.genre-tag:hover {
  background-color: var(--color-primary);
  color: var(--color-bg);
  transform: translateY(-2px);
}

/* ---------- 最近更新速览 ---------- */
.recent-updates-section {
  padding-top: 48px;
  padding-bottom: 48px;
  background-color: var(--color-bg-gray);
}

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

.update-card {
  background-color: var(--color-card-bg);
  border-radius: var(--radius-medium);
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

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

.card-title {
  font-size: var(--font-size-h3);
  font-weight: 700;
  color: var(--color-text);
  padding: 16px 16px 4px;
}

.card-meta {
  font-size: var(--font-size-small);
  color: var(--color-text-muted);
  padding: 0 16px 16px;
}

/* ---------- 人气榜单 ---------- */
.popular-rank-section {
  padding-top: 48px;
  padding-bottom: 48px;
  background-color: var(--color-bg);
}

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

.rank-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 12px 16px;
  background-color: var(--color-bg-gray);
  border-radius: var(--radius-medium);
  transition: background-color var(--transition-base), box-shadow var(--transition-base);
}

.rank-item:hover {
  background-color: var(--color-primary-light);
  box-shadow: var(--shadow-card);
}

.rank-number {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-h3);
  font-weight: 700;
  color: var(--color-primary);
  background-color: var(--color-primary-light);
  border-radius: 50%;
}

.rank-thumb {
  flex-shrink: 0;
  width: 56px;
  height: 72px;
  object-fit: cover;
  border-radius: var(--radius-small);
}

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

.rank-title {
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 4px;
}

.rank-reason {
  font-size: var(--font-size-small);
  color: var(--color-text-muted);
  line-height: 1.5;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}

/* ---------- 阅读指南入口 ---------- */
.guide-entry-section {
  padding-top: 48px;
  padding-bottom: 48px;
  background-color: var(--color-bg-gray);
}

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

.guide-card {
  background-color: var(--color-card-bg);
  border-radius: var(--radius-medium);
  padding: 32px;
  box-shadow: var(--shadow-card);
}

.guide-card-title {
  font-size: var(--font-size-h3);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 12px;
}

.guide-card-text {
  font-size: var(--font-size-small);
  color: var(--color-text-light);
  line-height: 1.6;
  margin-bottom: 16px;
}

.guide-link {
  display: inline-flex;
  align-items: center;
  font-size: var(--font-size-small);
  font-weight: 500;
  color: var(--color-primary);
  min-height: 44px;
}

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

/* ---------- 长尾推荐预告 ---------- */
.featured-topic-section {
  padding-top: 48px;
  padding-bottom: 56px;
  background-color: var(--color-bg);
}

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

.topic-card {
  background-color: var(--color-card-bg);
  border-radius: var(--radius-medium);
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

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

.topic-title {
  font-size: var(--font-size-h3);
  font-weight: 700;
  color: var(--color-text);
  padding: 16px 20px 4px;
}

.topic-text {
  font-size: var(--font-size-small);
  color: var(--color-text-light);
  line-height: 1.6;
  padding: 0 20px;
}

.topic-link {
  display: inline-block;
  margin: 12px 20px 20px;
  font-size: var(--font-size-small);
  font-weight: 500;
  color: var(--color-primary);
  min-height: 44px;
  line-height: 44px;
}

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

/* =========================================================
   05. Pages —— 题材分类页（genre.html）
   ========================================================= */

.genre-section {
  padding-top: 32px;
}

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

.genre-card {
  background-color: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-medium);
  overflow: hidden;
}

.genre-card-media img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
}

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

.genre-name {
  font-size: var(--font-size-h3);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 8px;
}

.genre-desc {
  font-size: var(--font-size-small);
  color: var(--color-text-light);
  line-height: 1.6;
  margin-bottom: 12px;
}

.genre-example {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  margin-bottom: 12px;
}

.genre-link {
  display: inline-block;
  font-size: var(--font-size-small);
  font-weight: 500;
  color: var(--color-primary);
  min-height: 44px;
  line-height: 44px;
}

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

/* 分类说明侧栏 */
.genre-guide-section {
  padding-top: 48px;
  padding-bottom: 16px;
}

.genre-guide-layout {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 40px;
  align-items: start;
}

.genre-guide-main {
  min-width: 0;
}

.genre-guide-main p {
  font-size: var(--font-size-base);
  color: var(--color-text-light);
  line-height: 1.7;
  margin-bottom: 16px;
}

.genre-guide-sidebar {
  background-color: var(--color-bg-gray);
  border-radius: var(--radius-medium);
  padding: 24px;
}

.sidebar-title {
  font-size: var(--font-size-h3);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 16px;
}

.sidebar-list {
  margin-bottom: 16px;
}

.sidebar-list li {
  font-size: var(--font-size-small);
  color: var(--color-text-light);
  padding: 8px 0;
  border-bottom: 1px solid var(--color-border);
}

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

.sidebar-link {
  display: inline-block;
  font-size: var(--font-size-small);
  font-weight: 500;
  color: var(--color-primary);
  min-height: 44px;
  line-height: 44px;
}

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

/* =========================================================
   06. Pages —— 阅读指南页（guide.html）
   ========================================================= */

.page-layout {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 40px;
  align-items: start;
  padding-top: 0;
}

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

.content-main .breadcrumb {
  margin-left: 0;
  margin-right: 0;
  padding-left: 0;
  padding-right: 0;
}

.content-main .page-header {
  padding-left: 0;
  padding-right: 0;
}

.guide-section {
  padding-top: 32px;
}

.guide-section .section-intro {
  margin-bottom: 20px;
}

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

.step-card {
  background-color: var(--color-bg-gray);
  border-radius: var(--radius-medium);
  padding: 24px;
  position: relative;
}

.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  background-color: var(--color-primary);
  color: var(--color-bg);
  font-size: var(--font-size-small);
  font-weight: 700;
  border-radius: 50%;
  margin-bottom: 12px;
}

.step-title {
  font-size: var(--font-size-h3);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 8px;
}

.step-text {
  font-size: var(--font-size-small);
  color: var(--color-text-light);
  line-height: 1.6;
}

/* 相关链接 */
.related-links {
  padding-top: 40px;
}

.related-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.related-card {
  display: block;
  background-color: var(--color-bg-gray);
  border-radius: var(--radius-medium);
  padding: 20px 24px;
  transition: background-color var(--transition-base), box-shadow var(--transition-base);
}

.related-card:hover {
  background-color: var(--color-primary-light);
  box-shadow: var(--shadow-card);
}

.related-card-title {
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 8px;
}

.related-card-text {
  font-size: var(--font-size-small);
  color: var(--color-text-light);
  line-height: 1.5;
}

/* 侧栏 */
.content-side {
  min-width: 0;
}

.side-figure {
  margin-bottom: 24px;
}

.side-image {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: var(--radius-medium);
}

.side-caption {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  padding-top: 8px;
  text-align: center;
}

.side-note {
  background-color: var(--color-bg-gray);
  border-radius: var(--radius-medium);
  padding: 24px;
}

.side-title {
  font-size: var(--font-size-h3);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 12px;
}

.side-text {
  font-size: var(--font-size-small);
  color: var(--color-text-light);
  line-height: 1.6;
  margin-bottom: 12px;
}

/* =========================================================
   07. Pages —— 热血漫画推荐页（hot-blood.html）
   ========================================================= */

.recommend-list-section {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 32px var(--container-padding) 0;
}

.recommend-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.recommend-item {
  display: flex;
  gap: 24px;
  background-color: var(--color-bg-gray);
  border-radius: var(--radius-medium);
  padding: 20px;
  align-items: flex-start;
}

.recommend-cover {
  flex-shrink: 0;
  width: 160px;
}

.recommend-cover img {
  width: 100%;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  border-radius: var(--radius-small);
}

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

.recommend-title {
  font-size: var(--font-size-h3);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 8px;
}

.recommend-reason {
  font-size: var(--font-size-small);
  color: var(--color-text-light);
  line-height: 1.7;
}

/* 推荐理由模块 */
.reason-section {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 48px var(--container-padding) 0;
}

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

.reason-card {
  background-color: var(--color-bg-gray);
  border-radius: var(--radius-medium);
  padding: 20px;
}

.reason-card-title {
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 8px;
}

.reason-card-text {
  font-size: var(--font-size-small);
  color: var(--color-text-light);
  line-height: 1.6;
}

/* 相关推荐 */
.related-section {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 48px var(--container-padding) 0;
}

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

.related-links .related-card {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.related-card-title {
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--color-primary);
}

.related-card-desc {
  font-size: var(--font-size-small);
  color: var(--color-text-light);
  line-height: 1.5;
}

/* =========================================================
   08. Pages —— 恋爱漫画推荐页（romance.html）
   ========================================================= */

.recommend-section {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 32px var(--container-padding) 0;
}

.recommend-section .recommend-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.recommend-card {
  background-color: var(--color-bg-gray);
  border-radius: var(--radius-medium);
  overflow: hidden;
}

.recommend-media img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
}

.recommend-body {
  padding: 20px;
}

.recommend-title {
  font-size: var(--font-size-h3);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 8px;
}

.recommend-tag {
  display: inline-block;
  font-size: var(--font-size-xs);
  color: var(--color-primary);
  background-color: var(--color-primary-light);
  padding: 4px 10px;
  border-radius: var(--radius-small);
  margin-bottom: 12px;
}

.recommend-desc {
  font-size: var(--font-size-small);
  color: var(--color-text-light);
  line-height: 1.6;
}

/* 选漫技巧 */
.tips-section {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 48px var(--container-padding) 0;
}

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

.tips-item {
  background-color: var(--color-bg-gray);
  border-radius: var(--radius-medium);
  padding: 20px;
}

.tips-title {
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 8px;
}

.tips-desc {
  font-size: var(--font-size-small);
  color: var(--color-text-light);
  line-height: 1.6;
}

/* 相关链接 */
.related-links {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 48px var(--container-padding) 0;
}

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

.related-card-group .related-card {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

/* =========================================================
   09. Pages —— 404 页面
   ========================================================= */

.error-main {
  flex: 1 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 64px 0;
}

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

.error-code {
  font-size: 96px;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1;
  margin-bottom: 16px;
}

.error-title {
  font-size: 28px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 16px;
}

.error-desc {
  font-size: var(--font-size-base);
  color: var(--color-text-light);
  margin-bottom: 8px;
}

.error-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 32px;
  background-color: var(--color-primary);
  color: var(--color-bg);
  font-size: var(--font-size-base);
  font-weight: 500;
  border-radius: var(--radius-medium);
  margin-top: 24px;
  margin-bottom: 32px;
  min-height: 44px;
  transition: background-color var(--transition-base);
}

.error-btn:hover {
  background-color: var(--color-primary-dark);
  color: var(--color-bg);
}

.error-links {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 24px;
}

.error-link {
  font-size: var(--font-size-small);
  color: var(--color-primary);
}

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

/* =========================================================
   10. Responsive —— 响应式断点
   ========================================================= */

/* ---------- 平板（≤1024px） ---------- */
@media (max-width: 1024px) {
  :root {
    --container-padding: 20px;
  }

  .hero-title {
    font-size: 32px;
  }

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

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

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

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

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

/* ---------- 手机（≤768px） ---------- */
@media (max-width: 768px) {
  :root {
    --container-padding: 16px;
    --font-size-h1: 28px;
    --font-size-h2: 22px;
  }

  /* 页头与导航 */
  .header-inner {
    min-height: 56px;
    flex-wrap: wrap;
  }

  .nav-toggle {
    display: flex;
    order: 3;
  }

  .site-nav {
    order: 4;
    width: 100%;
  }

  .nav-list {
    display: none;
    flex-direction: column;
    width: 100%;
    padding: 8px 0 16px;
    gap: 4px;
  }

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

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

  /* 首页 Hero */
  .hero-layout {
    grid-template-columns: 1fr;
    gap: 24px;
    padding-top: 32px;
    padding-bottom: 32px;
  }

  .hero-title {
    font-size: 28px;
  }

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

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

  /* 首页分类标签 */
  .genre-tags {
    gap: 8px;
  }

  .genre-tag {
    padding: 8px 14px;
    font-size: var(--font-size-xs);
    min-height: 40px;
  }

  /* 首页更新卡 */
  .update-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  /* 首页榜单 */
  .rank-item {
    flex-wrap: wrap;
    gap: 12px;
  }

  .rank-number {
    width: 32px;
    height: 32px;
    font-size: var(--font-size-base);
  }

  .rank-thumb {
    width: 48px;
    height: 64px;
  }

  .rank-info {
    flex: 1 1 calc(100% - 100px);
  }

  /* 首页指南入口与专题 */
  .guide-cards,
  .topic-cards {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  /* 内页通用 */
  .inner-main {
    padding-bottom: 40px;
  }

  .page-header {
    padding-top: 24px;
    padding-bottom: 4px;
  }

  .breadcrumb {
    margin-top: 12px;
  }

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

  .genre-guide-layout {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  /* 指南页 */
  .page-layout {
    grid-template-columns: 1fr;
    gap: 32px;
  }

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

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

  /* 热血推荐页 */
  .recommend-list-section {
    padding-top: 24px;
  }

  .recommend-item {
    flex-direction: column;
    gap: 16px;
  }

  .recommend-cover {
    width: 100%;
  }

  .recommend-cover img {
    aspect-ratio: 16 / 9;
  }

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

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

  /* 恋爱推荐页 */
  .recommend-section {
    padding-top: 24px;
  }

  .recommend-section .recommend-list {
    grid-template-columns: 1fr;
    gap: 16px;
  }

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

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

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

  .footer-bottom-inner {
    flex-direction: column;
    text-align: center;
  }

  /* 404 页 */
  .error-code {
    font-size: 72px;
  }

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

/* ---------- 小屏手机（≤390px） ---------- */
@media (max-width: 390px) {
  .brand-name {
    font-size: 18px;
  }

  .brand-slogan {
    font-size: 12px;
  }

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

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

  .rank-item {
    padding: 10px 12px;
  }

  .rank-thumb {
    width: 44px;
    height: 60px;
  }

  .rank-info {
    flex: 1 1 calc(100% - 90px);
  }

  .guide-card,
  .topic-card {
    padding: 20px;
  }

  .genre-card-body {
    padding: 16px;
  }

  .recommend-body {
    padding: 16px;
  }

  .step-card {
    padding: 20px;
  }

  .error-code {
    font-size: 60px;
  }
}