/* ============================================================
   base —— 基础变量、重置、全局字体与色彩
   ============================================================ */
:root {
  --color-ink: #1a1a1a;
  --color-ink-soft: #3d3d3d;
  --color-text: #2c3e50;
  --color-text-light: #5a6b7a;
  --color-bg: #f5f5f5;
  --color-surface: #ffffff;
  --color-accent: #c0392b;
  --color-accent-dark: #a93226;
  --color-accent-soft: #fdf0ef;
  --color-border: #e3e3e3;
  --color-muted: #8a8a8a;
  --font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --container-width: 1200px;
  --radius: 8px;
  --radius-sm: 6px;
  --shadow-card: 0 1px 4px rgba(0, 0, 0, 0.06);
  --shadow-hover: 0 6px 18px rgba(0, 0, 0, 0.1);
  --transition: 0.25s ease;
}

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

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

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

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

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

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

ul,
ol {
  list-style: none;
}

button {
  font-family: inherit;
  font-size: 100%;
  border: none;
  background: none;
  cursor: pointer;
  color: inherit;
}

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

h2 {
  font-size: 1.5rem;
}

h3 {
  font-size: 1.15rem;
}

p {
  color: var(--color-text);
}

/* ============================================================
   layout —— 全站统一页头、页脚、主容器与骨架
   ============================================================ */

/* 全站统一容器宽度 */
.header-inner,
.site-main,
.footer-inner {
  max-width: var(--container-width);
  margin: 0 auto;
  padding-left: 24px;
  padding-right: 24px;
}

/* ---- 页头 ---- */
.site-header {
  background-color: var(--color-surface);
  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: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  flex-shrink: 0;
}

.brand-name {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--color-ink);
  letter-spacing: 0.02em;
}

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

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

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

.nav-list li a {
  display: inline-block;
  padding: 8px 16px;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--color-text);
  border-radius: var(--radius-sm);
  transition: background-color var(--transition), color var(--transition);
}

.nav-list li a:hover {
  color: var(--color-accent);
  background-color: var(--color-accent-soft);
}

.nav-list li a.is-current {
  color: var(--color-accent);
  font-weight: 700;
  background-color: var(--color-accent-soft);
}

/* 移动端汉堡按钮（默认隐藏） */
.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
}

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

.nav-toggle-icon {
  position: relative;
  width: 22px;
  height: 2px;
  background-color: var(--color-ink);
  border-radius: 2px;
  transition: background-color 0.2s;
}

.nav-toggle-icon::before,
.nav-toggle-icon::after {
  content: "";
  position: absolute;
  left: 0;
  width: 22px;
  height: 2px;
  background-color: var(--color-ink);
  border-radius: 2px;
  transition: transform 0.2s;
}

.nav-toggle-icon::before {
  top: -7px;
}

.nav-toggle-icon::after {
  top: 7px;
}

/* ---- 主内容区 ---- */
.site-main {
  padding-top: 40px;
  padding-bottom: 64px;
  min-height: 60vh;
}

/* 内页统一主容器 */
.inner-main {
  padding-top: 28px;
}

/* ---- 面包屑 ---- */
.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 0.875rem;
  color: var(--color-text-light);
  margin-bottom: 24px;
}

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

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

.breadcrumb-sep {
  color: var(--color-muted);
  user-select: none;
}

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

/* ---- 内页标题区 ---- */
.page-header {
  margin-bottom: 36px;
}

.page-title {
  font-size: 2rem;
  font-weight: 800;
  color: var(--color-ink);
  margin-bottom: 8px;
}

.page-description {
  font-size: 1rem;
  color: var(--color-text-light);
  max-width: 720px;
}

/* ---- 通用区块标题 ---- */
.section-title {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--color-ink);
  margin-bottom: 20px;
  position: relative;
  padding-left: 14px;
}

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

.section-intro {
  color: var(--color-text-light);
  margin-bottom: 24px;
  max-width: 760px;
}

/* ---- 页脚 ---- */
.site-footer {
  background-color: var(--color-ink);
  color: #c9c9c9;
  padding-top: 48px;
  padding-bottom: 32px;
}

.footer-inner {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 40px;
}

.footer-brand .footer-slogan {
  font-size: 1.25rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 8px;
}

.footer-brand .footer-desc {
  font-size: 0.9rem;
  color: #b5b5b5;
  max-width: 420px;
}

.footer-title {
  font-size: 1rem;
  font-weight: 600;
  color: #ffffff;
  margin-bottom: 16px;
}

.footer-nav {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer-nav a {
  color: #b5b5b5;
  font-size: 0.9rem;
  display: inline-block;
  padding: 4px 0;
}

.footer-nav a:hover {
  color: #ffffff;
}

.footer-meta {
  grid-column: 1 / -1;
  border-top: 1px solid #3a3a3a;
  padding-top: 20px;
  margin-top: 8px;
}

.copyright {
  font-size: 0.85rem;
  color: #8a8a8a;
}

/* ============================================================
   components —— 通用与复用组件
   ============================================================ */

/* ---- 按钮 ---- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 24px;
  border-radius: var(--radius);
  font-size: 0.95rem;
  font-weight: 600;
  line-height: 1.4;
  transition: background-color var(--transition), color var(--transition), box-shadow var(--transition);
  min-height: 44px;
}

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

.btn-primary:hover {
  background-color: var(--color-accent-dark);
  color: #ffffff;
  box-shadow: var(--shadow-hover);
}

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

.btn-secondary:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  box-shadow: var(--shadow-hover);
}

/* ---- 卡片通用 hover ---- */
.guide-card,
.preview-card,
.category-card,
.rec-card {
  transition: transform var(--transition), box-shadow var(--transition);
}

.guide-card:hover,
.preview-card:hover,
.category-card:hover,
.rec-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}

/* ============================================================
   pages —— 首页专属模块
   ============================================================ */

/* ---- Hero 首屏 ---- */
.hero-section {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 48px;
  align-items: center;
  padding: 48px 0 56px;
}

.hero-content {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 20px;
}

.hero-title {
  font-size: 2.6rem;
  font-weight: 800;
  line-height: 1.2;
  color: var(--color-ink);
}

.hero-slogan {
  font-size: 1.1rem;
  color: var(--color-text-light);
  max-width: 520px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 8px;
}

.hero-media {
  display: flex;
  justify-content: center;
}

.hero-figure {
  width: 100%;
  max-width: 460px;
  border-radius: var(--radius);
  overflow: hidden;
  background-color: var(--color-surface);
  box-shadow: var(--shadow-card);
}

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

/* ---- 题材分类标签带 ---- */
.category-strip {
  padding: 32px 0;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  background-color: var(--color-surface);
  margin: 0 -24px;
  padding-left: 24px;
  padding-right: 24px;
}

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

.tag {
  display: inline-flex;
  align-items: center;
  padding: 8px 18px;
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 999px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text);
  transition: background-color var(--transition), color var(--transition), border-color var(--transition);
  min-height: 40px;
}

.tag:hover {
  background-color: var(--color-accent);
  border-color: var(--color-accent);
  color: #ffffff;
}

/* ---- 最近更新 ---- */
.recent-updates {
  padding: 40px 0;
}

.update-groups {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.update-group {
  background-color: var(--color-surface);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow-card);
}

.update-date {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-ink);
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--color-border);
}

.update-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.update-item {
  min-width: 0;
}

.update-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px;
  border-radius: var(--radius-sm);
  transition: background-color var(--transition);
  min-height: 60px;
}

.update-link:hover {
  background-color: var(--color-bg);
}

.update-thumb {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-sm);
  object-fit: cover;
  flex-shrink: 0;
  background-color: var(--color-bg);
}

.update-title {
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--color-ink);
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.update-status {
  font-size: 0.78rem;
  color: var(--color-accent);
  background-color: var(--color-accent-soft);
  padding: 2px 10px;
  border-radius: 999px;
  white-space: nowrap;
  flex-shrink: 0;
}

/* ---- 人气榜单预览 ---- */
.ranking-preview {
  padding: 40px 0;
}

.ranking-list {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 20px;
}

.ranking-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.rank-number {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--color-accent);
  line-height: 1;
}

.rank-link {
  display: flex;
  flex-direction: column;
  gap: 10px;
  background-color: var(--color-surface);
  border-radius: var(--radius);
  padding: 14px;
  box-shadow: var(--shadow-card);
  transition: transform var(--transition), box-shadow var(--transition);
}

.rank-link:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}

.rank-link img {
  width: 100%;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  border-radius: var(--radius-sm);
  background-color: var(--color-bg);
}

.rank-title {
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--color-ink);
}

.rank-reason {
  font-size: 0.82rem;
  color: var(--color-text-light);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ---- 阅读指南入口 ---- */
.guide-entry {
  padding: 40px 0;
}

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

.guide-card {
  background-color: var(--color-surface);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.guide-card-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-ink);
}

.guide-card-text {
  font-size: 0.92rem;
  color: var(--color-text-light);
  line-height: 1.7;
  flex: 1;
}

.guide-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--color-accent);
  min-height: 40px;
}

.guide-link::after {
  content: "→";
  transition: transform var(--transition);
}

.guide-link:hover::after {
  transform: translateX(4px);
}

/* ---- 长尾推荐预告 ---- */
.longtail-preview {
  padding: 40px 0;
}

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

.preview-card {
  background-color: var(--color-surface);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
}

.preview-card img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  background-color: var(--color-bg);
}

.preview-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-ink);
  padding: 20px 20px 8px;
}

.preview-text {
  font-size: 0.9rem;
  color: var(--color-text-light);
  padding: 0 20px 16px;
  flex: 1;
}

.preview-link {
  display: inline-flex;
  align-items: center;
  padding: 0 20px 20px;
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--color-accent);
  min-height: 40px;
}

/* ============================================================
   pages —— 分类页（mhh/categories.html）
   ============================================================ */

.category-grid {
  margin-bottom: 48px;
}

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

.category-card {
  background-color: var(--color-surface);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
}

.category-media {
  overflow: hidden;
  background-color: var(--color-bg);
}

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

.category-body {
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  flex: 1;
}

.category-name {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-ink);
}

.category-desc {
  font-size: 0.9rem;
  color: var(--color-text-light);
  line-height: 1.6;
  flex: 1;
}

.category-link {
  display: inline-flex;
  align-items: center;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-accent);
  min-height: 40px;
}

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

.category-guide-content p {
  font-size: 0.95rem;
  color: var(--color-text);
  line-height: 1.8;
  margin-bottom: 12px;
}

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

/* ============================================================
   pages —— 阅读指南页（mhh/guide.html）
   ============================================================ */

.layout-shell {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 48px;
  align-items: start;
}

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

.guide-section {
  margin-bottom: 40px;
  padding-bottom: 32px;
  border-bottom: 1px solid var(--color-border);
}

.guide-section:last-of-type {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 0;
}

.guide-section h2 {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--color-ink);
  margin-bottom: 16px;
}

.guide-section h3 {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--color-ink);
  margin-top: 24px;
  margin-bottom: 10px;
}

.guide-section p {
  font-size: 0.95rem;
  color: var(--color-text);
  line-height: 1.8;
  margin-bottom: 14px;
}

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

.guide-list {
  margin: 16px 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.guide-list li {
  position: relative;
  padding-left: 24px;
  font-size: 0.95rem;
  color: var(--color-text);
  line-height: 1.7;
}

.guide-list li::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 10px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--color-accent);
}

.guide-figure {
  margin-top: 24px;
  border-radius: var(--radius);
  overflow: hidden;
  background-color: var(--color-surface);
  box-shadow: var(--shadow-card);
}

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

.guide-figure figcaption {
  padding: 12px 16px;
  font-size: 0.85rem;
  color: var(--color-text-light);
  background-color: var(--color-surface);
}

/* ---- 侧栏 ---- */
.guide-aside {
  background-color: var(--color-surface);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow-card);
  position: sticky;
  top: 88px;
}

.guide-aside h2 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-ink);
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--color-border);
}

.aside-links {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.aside-links li {
  padding: 8px 0;
  border-bottom: 1px solid var(--color-bg);
}

.aside-links li:last-child {
  border-bottom: none;
}

.aside-links a {
  display: block;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--color-text);
  margin-bottom: 4px;
}

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

.aside-links li p {
  font-size: 0.82rem;
  color: var(--color-text-light);
  line-height: 1.5;
}

/* ============================================================
   pages —— 漫画推荐页（mhh/recommendations.html）
   ============================================================ */

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

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

.rec-card {
  background-color: var(--color-surface);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
}

.rec-media {
  background-color: var(--color-bg);
  overflow: hidden;
}

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

.rec-body {
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  flex: 1;
}

.rec-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-ink);
}

.rec-tags {
  font-size: 0.82rem;
  color: var(--color-accent);
  font-weight: 500;
}

.rec-reason {
  font-size: 0.88rem;
  color: var(--color-text-light);
  line-height: 1.6;
  flex: 1;
}

/* ---- 推荐理由 ---- */
.recommendation-reasons {
  margin-bottom: 48px;
}

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

.reason-item {
  background-color: var(--color-surface);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow-card);
}

.reason-name {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-ink);
  margin-bottom: 8px;
  position: relative;
  padding-left: 16px;
}

.reason-name::before {
  content: "";
  position: absolute;
  left: 0;
  top: 6px;
  width: 4px;
  height: 16px;
  border-radius: 2px;
  background-color: var(--color-accent);
}

.reason-text {
  font-size: 0.9rem;
  color: var(--color-text-light);
  line-height: 1.7;
}

/* ---- 相关推荐 ---- */
.related-links {
  background-color: var(--color-surface);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow-card);
}

.related-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-ink);
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--color-border);
}

.related-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.related-list a {
  display: block;
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--color-text);
  padding: 10px 14px;
  background-color: var(--color-bg);
  border-radius: var(--radius-sm);
  transition: background-color var(--transition), color var(--transition);
  min-height: 44px;
}

.related-list a:hover {
  background-color: var(--color-accent-soft);
  color: var(--color-accent);
}

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

.error-main {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding-top: 80px;
  padding-bottom: 80px;
  text-align: center;
}

.error-panel {
  margin-bottom: 48px;
}

.error-code {
  font-size: 5rem;
  font-weight: 800;
  color: var(--color-accent);
  line-height: 1;
  margin-bottom: 16px;
}

.error-panel h1 {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--color-ink);
  margin-bottom: 12px;
}

.error-desc {
  font-size: 1rem;
  color: var(--color-text-light);
  margin-bottom: 24px;
}

.error-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 28px;
  background-color: var(--color-accent);
  color: #ffffff;
  border-radius: var(--radius);
  font-weight: 600;
  min-height: 44px;
  transition: background-color var(--transition);
}

.error-btn:hover {
  background-color: var(--color-accent-dark);
  color: #ffffff;
}

.error-links-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-ink);
  margin-bottom: 16px;
}

.error-links-list {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  justify-content: center;
}

.error-links-list a {
  display: inline-flex;
  align-items: center;
  padding: 8px 20px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--color-text);
  min-height: 44px;
  transition: border-color var(--transition), color var(--transition);
}

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

/* ============================================================
   responsive —— 响应式断点
   ============================================================ */

/* ---- 平板及以下 ---- */
@media (max-width: 1024px) {
  .hero-section {
    gap: 32px;
  }

  .hero-title {
    font-size: 2.2rem;
  }

  .ranking-list {
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
  }

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

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

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

/* ---- 手机断点 768px ---- */
@media (max-width: 768px) {
  .header-inner,
  .site-main,
  .footer-inner {
    padding-left: 16px;
    padding-right: 16px;
  }

  .site-main {
    padding-top: 24px;
    padding-bottom: 40px;
  }

  /* 汉堡按钮显示 */
  .nav-toggle {
    display: inline-flex;
  }

  /* 导航列表默认收起 */
  .nav-list {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background-color: var(--color-surface);
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    border-bottom: 1px solid var(--color-border);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.08);
    padding: 8px 16px 16px;
  }

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

  .nav-list li a {
    display: block;
    padding: 12px 8px;
    font-size: 1rem;
    border-radius: var(--radius-sm);
  }

  .header-inner {
    position: relative;
    min-height: 64px;
  }

  /* ---- Hero ---- */
  .hero-section {
    grid-template-columns: 1fr;
    gap: 28px;
    padding: 24px 0 32px;
  }

  .hero-content {
    align-items: flex-start;
    gap: 16px;
  }

  .hero-title {
    font-size: 1.9rem;
  }

  .hero-actions {
    flex-direction: column;
    align-items: stretch;
    width: 100%;
  }

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

  .hero-media {
    order: -1;
  }

  .hero-figure {
    max-width: 100%;
  }

  /* ---- 分类标签 ---- */
  .category-strip {
    margin: 0 -16px;
    padding-left: 16px;
    padding-right: 16px;
  }

  .category-tags {
    flex-wrap: nowrap;
    overflow-x: auto;
    padding-bottom: 8px;
    -webkit-overflow-scrolling: touch;
  }

  .tag {
    flex-shrink: 0;
  }

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

  .update-group {
    padding: 16px;
  }

  /* ---- 榜单 ---- */
  .ranking-list {
    grid-template-columns: repeat(2, 1fr);
  }

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

  /* ---- 长尾预告 ---- */
  .preview-grid {
    grid-template-columns: 1fr;
  }

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

  .category-guide {
    padding: 20px;
  }

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

  .guide-aside {
    position: static;
    order: 2;
  }

  /* ---- 推荐页 ---- */
  .rec-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

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

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

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

  .footer-meta {
    grid-column: 1;
  }

  /* ---- 404 ---- */
  .error-main {
    padding-top: 48px;
    padding-bottom: 48px;
  }

  .error-code {
    font-size: 3.5rem;
  }

  .error-links-list {
    flex-direction: column;
    align-items: stretch;
    width: 100%;
    max-width: 320px;
  }

  .error-links-list a {
    justify-content: center;
  }
}

/* ---- 小屏手机 390px ---- */
@media (max-width: 420px) {
  .brand-name {
    font-size: 1.2rem;
  }

  .hero-title {
    font-size: 1.6rem;
  }

  .hero-slogan {
    font-size: 0.95rem;
  }

  .section-title {
    font-size: 1.2rem;
  }

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

  .rank-link {
    flex-direction: row;
    align-items: center;
  }

  .rank-link img {
    width: 80px;
    aspect-ratio: 3 / 4;
    flex-shrink: 0;
  }

  .rank-number {
    font-size: 1.2rem;
  }

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

  .update-thumb {
    width: 48px;
    height: 48px;
  }
}