/* ==========================================================================
   51漫画 · 全局样式
   物流运营风：清晰状态标签、时间节点、路线图式布局
   配色：深蓝灰主色 + 橙色强调 + 浅灰背景
   ========================================================================== */

/* --------------------------------------------------------------------------
   Base · 基础重置与全局变量
   -------------------------------------------------------------------------- */
:root {
  --color-primary: #1f2a3a;
  --color-primary-light: #2a3a4f;
  --color-bg: #f5f7fa;
  --color-accent: #ff7f50;
  --color-accent-dark: #e96a3d;
  --color-gray: #3a4a5a;
  --color-gray-light: #6b7a8a;
  --color-border: #e3e8ee;
  --color-white: #ffffff;
  --font-body: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Helvetica Neue", Arial, sans-serif;
  --container-width: 1200px;
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 8px;
  --shadow-card: 0 1px 3px rgba(31, 42, 58, 0.08);
  --shadow-hover: 0 4px 12px rgba(31, 42, 58, 0.12);
  --transition-base: 0.2s ease;
}

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

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

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-primary);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

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: 1.3;
  color: var(--color-primary);
}

/* --------------------------------------------------------------------------
   Layout · 全站统一布局容器
   -------------------------------------------------------------------------- */
.site-body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

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

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

.header-container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 64px;
  gap: 24px;
}

.brand-logo {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
  flex-shrink: 0;
}

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

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

.brand-tagline {
  font-size: 12px;
  color: var(--color-gray-light);
  letter-spacing: 0.5px;
}

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

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

.nav-list li a {
  display: block;
  padding: 8px 14px;
  font-size: 15px;
  font-weight: 500;
  color: var(--color-gray);
  border-radius: var(--radius-sm);
  transition: background-color var(--transition-base), color var(--transition-base);
}

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

.nav-list li a.is-current {
  color: var(--color-white);
  background-color: var(--color-primary);
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px 12px;
  align-items: center;
  gap: 8px;
  color: var(--color-primary);
}

.nav-toggle-icon {
  display: block;
  width: 20px;
  height: 2px;
  background-color: var(--color-primary);
  position: relative;
  transition: background-color var(--transition-base);
}

.nav-toggle-icon::before,
.nav-toggle-icon::after {
  content: "";
  position: absolute;
  left: 0;
  width: 20px;
  height: 2px;
  background-color: var(--color-primary);
  transition: transform var(--transition-base);
}

.nav-toggle-icon::before {
  top: -6px;
}

.nav-toggle-icon::after {
  top: 6px;
}

.nav-toggle-text {
  font-size: 14px;
  font-weight: 500;
}

/* --------------------------------------------------------------------------
   Components · 通用组件
   -------------------------------------------------------------------------- */

/* 面包屑 */
.breadcrumb {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 16px 24px 0;
  font-size: 14px;
  color: var(--color-gray-light);
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
}

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

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

.breadcrumb-sep {
  color: var(--color-gray-light);
  margin: 0 2px;
}

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

/* 内页标题区 */
.inner-main {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
  width: 100%;
}

.page-header {
  padding: 32px 0 24px;
  border-bottom: 1px solid var(--color-border);
  margin-bottom: 32px;
}

.page-title {
  font-size: 30px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.page-description {
  font-size: 16px;
  color: var(--color-gray);
  max-width: 720px;
  line-height: 1.7;
}

/* 区块标题 */
.section-title,
.section-heading {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 12px;
  position: relative;
  padding-left: 14px;
}

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

.section-lead {
  font-size: 15px;
  color: var(--color-gray);
  margin-bottom: 24px;
  max-width: 680px;
  line-height: 1.7;
}

/* 更多链接 */
.more-link {
  text-align: right;
  margin-top: 16px;
}

.more-link a {
  display: inline-block;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-accent);
  padding: 6px 12px;
  border: 1px solid var(--color-accent);
  border-radius: var(--radius-sm);
  transition: background-color var(--transition-base), color var(--transition-base);
}

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

/* 相关链接 */
.related-links {
  margin-top: 32px;
  padding: 16px 20px;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

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

.related-links-item {
  font-size: 14px;
  color: var(--color-gray);
  padding: 4px 10px;
  background-color: var(--color-bg);
  border-radius: var(--radius-sm);
  transition: color var(--transition-base), background-color var(--transition-base);
}

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

/* 页脚 */
.site-footer {
  background-color: var(--color-primary);
  color: var(--color-white);
  margin-top: 48px;
  flex-shrink: 0;
}

.footer-columns {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 40px 24px 24px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.footer-col h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-white);
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.15);
}

.footer-col p {
  font-size: 14px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.8);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 16px 24px;
  text-align: center;
}

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

/* --------------------------------------------------------------------------
   Pages · 首页
   -------------------------------------------------------------------------- */

/* Hero 区：左文右图 */
.hero-section {
  background-color: var(--color-white);
  border-bottom: 1px solid var(--color-border);
}

.hero-section {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 48px 24px 40px;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
}

.hero-copy h1 {
  font-size: 36px;
  font-weight: 700;
  line-height: 1.25;
  margin-bottom: 16px;
  color: var(--color-primary);
}

.hero-copy h1 span {
  color: var(--color-accent);
}

.hero-copy > p {
  font-size: 16px;
  line-height: 1.8;
  color: var(--color-gray);
  margin-bottom: 24px;
  max-width: 480px;
}

.hero-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.btn-primary,
.btn-secondary {
  display: inline-block;
  padding: 10px 24px;
  font-size: 15px;
  font-weight: 600;
  border-radius: var(--radius-md);
  transition: background-color var(--transition-base), color var(--transition-base), border-color var(--transition-base);
}

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

.btn-primary:hover {
  background-color: var(--color-accent-dark);
  border-color: var(--color-accent-dark);
  color: var(--color-white);
}

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

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

.hero-media {
  position: relative;
}

.hero-media img {
  width: 100%;
  height: 320px;
  object-fit: cover;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-hover);
}

.hero-media figcaption {
  font-size: 13px;
  color: var(--color-gray-light);
  margin-top: 8px;
  text-align: center;
}

/* 题材分类导航带 */
.category-nav-section {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 40px 24px 8px;
}

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

.tag-item {
  display: inline-block;
  padding: 8px 20px;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-primary);
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: 20px;
  transition: background-color var(--transition-base), color var(--transition-base), border-color var(--transition-base);
}

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

/* 最近更新 */
.recent-updates-section {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 32px 24px 8px;
}

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

.update-date {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 16px;
  padding: 8px 16px;
  background-color: var(--color-white);
  border-left: 4px solid var(--color-accent);
  border-radius: var(--radius-sm);
  display: inline-block;
}

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

.comic-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

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

.comic-card img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.comic-card h4 {
  font-size: 15px;
  font-weight: 600;
  padding: 12px 14px 6px;
  color: var(--color-primary);
}

.status-badge {
  display: inline-block;
  margin: 0 14px 14px;
  padding: 3px 10px;
  font-size: 12px;
  font-weight: 500;
  color: var(--color-accent);
  background-color: rgba(255, 127, 80, 0.1);
  border: 1px solid var(--color-accent);
  border-radius: var(--radius-sm);
}

/* 人气榜单预览 */
.ranking-preview-section {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 32px 24px 8px;
}

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

.ranking-item {
  display: flex;
  align-items: center;
  gap: 16px;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 12px 16px;
  transition: box-shadow var(--transition-base);
}

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

.rank-number {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-accent);
  min-width: 36px;
  text-align: center;
  font-style: italic;
}

.ranking-item img {
  width: 64px;
  height: 80px;
  object-fit: cover;
  border-radius: var(--radius-sm);
}

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

.rank-info h3 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 4px;
}

.rank-info p {
  font-size: 14px;
  color: var(--color-gray);
  line-height: 1.6;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* 精选合集入口 与 阅读指南入口 */
.collection-entry-section,
.guide-entry-section {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 32px 24px 8px;
}

.entry-grid-2col {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin-top: 16px;
}

.entry-card {
  display: block;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 24px;
  transition: box-shadow var(--transition-base), border-color var(--transition-base);
}

.entry-card:hover {
  box-shadow: var(--shadow-hover);
  border-color: var(--color-accent);
}

.entry-card h3 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--color-primary);
}

.entry-card h3::after {
  content: " →";
  color: var(--color-accent);
  font-weight: 400;
}

.entry-card p {
  font-size: 14px;
  color: var(--color-gray);
  line-height: 1.7;
}

/* 版权与反馈说明 */
.copyright-feedback-section {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 32px 24px 8px;
}

.copyright-feedback-section p {
  font-size: 14px;
  color: var(--color-gray);
  line-height: 1.8;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  margin-bottom: 12px;
}

/* --------------------------------------------------------------------------
   Pages · 题材分类页
   -------------------------------------------------------------------------- */

.category-list {
  margin-bottom: 40px;
}

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

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

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

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

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

.category-name {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--color-primary);
}

.category-desc {
  font-size: 14px;
  color: var(--color-gray);
  line-height: 1.7;
}

.category-details {
  margin-bottom: 40px;
}

.details-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.detail-item {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 20px;
}

.detail-title {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--color-primary);
  position: relative;
  padding-left: 20px;
}

.detail-title::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 8px;
  height: 8px;
  background-color: var(--color-accent);
  border-radius: 2px;
}

.detail-item p {
  font-size: 14px;
  color: var(--color-gray);
  line-height: 1.7;
}

.category-tip {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  margin-bottom: 24px;
  font-size: 14px;
  color: var(--color-gray);
  line-height: 1.8;
}

.category-tip a {
  color: var(--color-accent);
  font-weight: 500;
  margin: 0 4px;
}

.category-tip a:hover {
  text-decoration: underline;
}

/* --------------------------------------------------------------------------
   Pages · 阅读指南页（侧栏布局）
   -------------------------------------------------------------------------- */

.layout-shell.sidebar-left {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 32px;
  align-items: start;
}

.guide-aside {
  order: 1;
  margin-top: 32px;
  position: sticky;
  top: 80px;
}

.layout-shell.sidebar-left .inner-main {
  order: 2;
  padding: 0;
}

.aside-block {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 20px;
  margin-bottom: 20px;
}

.aside-block h2 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--color-border);
  color: var(--color-primary);
}

.aside-links li {
  margin-bottom: 4px;
}

.aside-links li a {
  display: block;
  padding: 6px 10px;
  font-size: 14px;
  color: var(--color-gray);
  border-radius: var(--radius-sm);
  transition: background-color var(--transition-base), color var(--transition-base);
}

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

/* 阅读步骤 */
.guide-steps {
  margin-bottom: 40px;
}

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

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

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

.step-num {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-primary);
  color: var(--color-white);
  font-size: 16px;
  font-weight: 700;
  border-radius: 50%;
}

.step-body h3 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--color-primary);
}

.step-body p {
  font-size: 14px;
  color: var(--color-gray);
  line-height: 1.7;
}

/* 追更技巧 */
.guide-tips {
  margin-bottom: 40px;
}

.tips-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.tip-item {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 20px;
}

.tip-item h3 {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--color-primary);
}

.tip-item h3::before {
  content: "◆ ";
  color: var(--color-accent);
  font-size: 12px;
}

.tip-item p {
  font-size: 14px;
  color: var(--color-gray);
  line-height: 1.7;
}

.tip-item p a {
  color: var(--color-accent);
  font-weight: 500;
}

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

.guide-figure img {
  width: 100%;
  height: 280px;
  object-fit: cover;
  border-radius: var(--radius-md);
}

.guide-figure figcaption {
  font-size: 13px;
  color: var(--color-gray-light);
  margin-top: 8px;
  text-align: center;
}

/* --------------------------------------------------------------------------
   Pages · 最近更新页
   -------------------------------------------------------------------------- */

.update-status-note {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 20px;
  margin-bottom: 32px;
}

.update-status-note p {
  font-size: 14px;
  color: var(--color-gray);
  line-height: 1.8;
  margin-bottom: 8px;
}

.update-status-note p:last-child {
  margin-bottom: 0;
}

.update-status-note strong {
  color: var(--color-primary);
  font-weight: 600;
}

.update-list-section {
  margin-bottom: 40px;
}

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

.update-group-date {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 16px;
  padding: 8px 16px;
  background-color: var(--color-white);
  border-left: 4px solid var(--color-accent);
  border-radius: var(--radius-sm);
  display: inline-block;
}

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

.update-item {
  display: flex;
  align-items: center;
  gap: 16px;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 12px 16px;
  transition: box-shadow var(--transition-base);
}

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

.update-cover {
  width: 64px;
  height: 80px;
  object-fit: cover;
  border-radius: var(--radius-sm);
  flex-shrink: 0;
}

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

.update-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 4px;
}

.status-tag {
  display: inline-block;
  padding: 2px 8px;
  font-size: 12px;
  font-weight: 500;
  border-radius: var(--radius-sm);
  margin-bottom: 4px;
}

.status-serial {
  color: var(--color-accent);
  background-color: rgba(255, 127, 80, 0.1);
  border: 1px solid var(--color-accent);
}

.status-end {
  color: var(--color-gray);
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
}

.update-desc {
  font-size: 13px;
  color: var(--color-gray-light);
  line-height: 1.5;
  margin-bottom: 4px;
}

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

.update-link:hover {
  text-decoration: underline;
}

/* 相关阅读 */
.related-reading {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 20px;
  margin-bottom: 32px;
}

.related-reading p {
  font-size: 14px;
  color: var(--color-gray);
  line-height: 2;
}

.related-reading p a {
  color: var(--color-accent);
  font-weight: 500;
  margin-right: 8px;
}

.related-reading p a:hover {
  text-decoration: underline;
}

/* --------------------------------------------------------------------------
   Pages · 人气榜单页
   -------------------------------------------------------------------------- */

.ranking-list .ranking-item {
  margin-bottom: 0;
}

.ranking-list .rank-number {
  font-size: 24px;
  min-width: 44px;
}

.ranking-list .rank-media img {
  width: 72px;
  height: 96px;
}

.rank-tag {
  display: inline-block;
  padding: 2px 10px;
  font-size: 12px;
  font-weight: 500;
  color: var(--color-accent);
  background-color: rgba(255, 127, 80, 0.1);
  border: 1px solid var(--color-accent);
  border-radius: var(--radius-sm);
  margin-bottom: 6px;
}

.ranking-reasons {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 24px;
  margin-bottom: 32px;
}

.ranking-reasons ul {
  margin: 16px 0;
}

.ranking-reasons ul li {
  padding: 8px 0 8px 24px;
  position: relative;
  font-size: 14px;
  color: var(--color-gray);
  line-height: 1.7;
}

.ranking-reasons ul li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 16px;
  width: 8px;
  height: 8px;
  background-color: var(--color-accent);
  border-radius: 2px;
}

.ranking-reasons ul li strong {
  color: var(--color-primary);
}

.ranking-reasons p a {
  color: var(--color-accent);
  font-weight: 500;
  margin-right: 12px;
}

.ranking-reasons p a:hover {
  text-decoration: underline;
}

/* --------------------------------------------------------------------------
   Pages · 精选合集页
   -------------------------------------------------------------------------- */

.collection-grid-wrapper {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-bottom: 40px;
}

.collection-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: box-shadow var(--transition-base), transform var(--transition-base);
}

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

.collection-card-cover img {
  width: 100%;
  height: 220px;
  object-fit: cover;
}

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

.collection-card-title {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--color-primary);
}

.collection-card-desc {
  font-size: 14px;
  color: var(--color-gray);
  line-height: 1.7;
  margin-bottom: 12px;
}

.collection-card-reason {
  font-size: 13px;
  color: var(--color-gray-light);
  line-height: 1.6;
  background-color: var(--color-bg);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
}

.collection-card-reason strong {
  color: var(--color-accent);
  font-weight: 600;
}

/* 合集推荐理由 */
.collection-reasons {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 24px;
  margin-bottom: 32px;
}

.reasons-intro {
  font-size: 14px;
  color: var(--color-gray);
  margin-bottom: 16px;
}

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

.reasons-list li {
  padding: 8px 0 8px 24px;
  position: relative;
  font-size: 14px;
  color: var(--color-gray);
  line-height: 1.7;
}

.reasons-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 16px;
  width: 8px;
  height: 8px;
  background-color: var(--color-accent);
  border-radius: 2px;
}

.reasons-list li strong {
  color: var(--color-primary);
}

.reasons-more a {
  color: var(--color-accent);
  font-weight: 500;
  margin-right: 12px;
}

.reasons-more a:hover {
  text-decoration: underline;
}

/* 指南入口 */
.collection-guide-entry {
  margin-bottom: 32px;
}

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

.guide-entry-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 24px;
  transition: box-shadow var(--transition-base), border-color var(--transition-base);
}

.guide-entry-card:hover {
  box-shadow: var(--shadow-hover);
  border-color: var(--color-accent);
}

.guide-entry-title {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--color-primary);
}

.guide-entry-card p {
  font-size: 14px;
  color: var(--color-gray);
  line-height: 1.7;
}

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

.guide-entry-card p a:hover {
  text-decoration: underline;
}

/* 版权反馈 */
.copyright-feedback {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 24px;
  margin-bottom: 32px;
}

.copyright-feedback p {
  font-size: 14px;
  color: var(--color-gray);
  line-height: 1.8;
  margin-bottom: 8px;
}

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

/* --------------------------------------------------------------------------
   Pages · 404
   -------------------------------------------------------------------------- */

.error-main {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 60vh;
  padding: 48px 24px;
}

.error-content {
  text-align: center;
  max-width: 560px;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 48px 40px;
  box-shadow: var(--shadow-card);
}

.error-title {
  font-size: 64px;
  font-weight: 700;
  color: var(--color-accent);
  line-height: 1;
  margin-bottom: 16px;
}

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

.error-suggestion {
  font-size: 14px;
  color: var(--color-gray);
  line-height: 1.7;
  margin-bottom: 24px;
}

.error-back-link {
  display: inline-block;
  padding: 10px 28px;
  background-color: var(--color-primary);
  color: var(--color-white);
  font-size: 15px;
  font-weight: 500;
  border-radius: var(--radius-md);
  transition: background-color var(--transition-base);
}

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

/* --------------------------------------------------------------------------
   Responsive · 响应式
   -------------------------------------------------------------------------- */

/* 平板（≤1024px） */
@media (max-width: 1024px) {
  .hero-section {
    gap: 32px;
    padding: 40px 24px 32px;
  }

  .hero-copy h1 {
    font-size: 30px;
  }

  .hero-media img {
    height: 260px;
  }

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

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

  .layout-shell.sidebar-left {
    grid-template-columns: 240px 1fr;
    gap: 24px;
  }
}

/* 手机（≤768px） */
@media (max-width: 768px) {
  .header-container {
    padding: 0 16px;
    min-height: 56px;
  }

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

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

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

  .nav-list {
    display: none;
    position: absolute;
    top: 56px;
    left: 0;
    right: 0;
    background-color: var(--color-white);
    border-bottom: 1px solid var(--color-border);
    flex-direction: column;
    align-items: stretch;
    padding: 8px 16px;
    gap: 0;
    box-shadow: 0 4px 12px rgba(31, 42, 58, 0.08);
  }

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

  .nav-list li a {
    padding: 12px 8px;
    border-bottom: 1px solid var(--color-border);
    border-radius: 0;
  }

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

  .nav-list li a.is-current {
    background-color: transparent;
    color: var(--color-accent);
  }

  /* 首页 Hero 移动端：图文堆叠 */
  .hero-section {
    grid-template-columns: 1fr;
    gap: 24px;
    padding: 32px 16px 24px;
  }

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

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

  .category-nav-section,
  .recent-updates-section,
  .ranking-preview-section,
  .collection-entry-section,
  .guide-entry-section,
  .copyright-feedback-section {
    padding-left: 16px;
    padding-right: 16px;
  }

  .update-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }

  .comic-card img {
    height: 160px;
  }

  .entry-grid-2col,
  .guide-entry-grid {
    grid-template-columns: 1fr;
  }

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

  .rank-number {
    font-size: 18px;
    min-width: 28px;
  }

  .ranking-item img {
    width: 52px;
    height: 68px;
  }

  /* 内页 */
  .inner-main {
    padding: 0 16px;
  }

  .breadcrumb {
    padding: 12px 16px 0;
  }

  .page-header {
    padding: 24px 0 16px;
    margin-bottom: 24px;
  }

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

  /* 侧栏布局移动端：主内容在前 */
  .layout-shell.sidebar-left {
    grid-template-columns: 1fr;
    padding: 0 16px;
    gap: 0;
  }

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

  .guide-aside {
    order: 2;
    margin-top: 24px;
    position: static;
  }

  .steps-list {
    gap: 12px;
  }

  .step-item {
    padding: 16px;
  }

  .tips-list,
  .details-list {
    grid-template-columns: 1fr;
    gap: 12px;
  }

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

  .category-card-media img {
    height: 140px;
  }

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

  .collection-card-cover img {
    height: 180px;
  }

  .update-item {
    padding: 10px 12px;
    gap: 12px;
  }

  .update-cover {
    width: 52px;
    height: 68px;
  }

  .footer-columns {
    grid-template-columns: 1fr;
    gap: 24px;
    padding: 32px 16px 16px;
  }

  .footer-bottom {
    padding: 12px 16px;
  }

  .error-content {
    padding: 32px 24px;
  }

  .error-title {
    font-size: 48px;
  }
}

/* 小手机（≤390px） */
@media (max-width: 390px) {
  .update-grid {
    grid-template-columns: 1fr;
  }

  .comic-card img {
    height: 180px;
  }

  .brand-tagline {
    display: none;
  }

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

  .btn-primary,
  .btn-secondary {
    text-align: center;
  }
}