/* ==========================================================================
   base — 全局基础样式
   ========================================================================== */

:root {
  --color-bg: #1a1a2e;
  --color-bg-alt: #16213e;
  --color-bg-card: #0f3460;
  --color-accent: #e94560;
  --color-accent-hover: #ff6b81;
  --color-text: #f5f5f5;
  --color-text-muted: #a0a4b8;
  --color-text-soft: #c8cbe0;
  --color-border: rgba(255, 255, 255, 0.08);
  --color-border-strong: rgba(255, 255, 255, 0.16);

  --font-heading: "Source Han Sans SC", "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;

  --container-width: 1200px;
  --container-padding: 24px;
  --header-height: 68px;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 8px;
  --transition-base: 0.25s ease;
}

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

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

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

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

a {
  color: var(--color-text);
  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-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.3;
  color: var(--color-text);
}

h1 {
  font-size: 32px;
}

h2 {
  font-size: 26px;
}

h3 {
  font-size: 20px;
}

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

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

/* ==========================================================================
   layout — 全站布局骨架
   ========================================================================== */

.site-body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-height);
  background-color: rgba(26, 26, 46, 0.95);
  border-bottom: 1px solid var(--color-border);
  backdrop-filter: blur(8px);
}

.header-inner {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

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

.brand-name {
  font-family: var(--font-heading);
  font-size: 20px;
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: 0.02em;
}

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

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

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 8px;
  background: transparent;
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-sm);
  cursor: pointer;
  align-items: center;
  justify-content: center;
}

.nav-toggle-icon,
.nav-toggle-icon::before,
.nav-toggle-icon::after {
  display: block;
  width: 20px;
  height: 2px;
  background-color: var(--color-text);
  transition: transform var(--transition-base), opacity var(--transition-base);
  content: "";
}

.nav-toggle-icon {
  position: relative;
}

.nav-toggle-icon::before {
  position: absolute;
  top: -6px;
  left: 0;
}

.nav-toggle-icon::after {
  position: absolute;
  top: 6px;
  left: 0;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-icon {
  transform: rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-icon::before {
  top: 0;
  transform: rotate(90deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-icon::after {
  top: 0;
  opacity: 0;
}

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

.nav-list li {
  position: relative;
}

.nav-list a {
  display: block;
  padding: 8px 16px;
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text-soft);
  border-radius: var(--radius-sm);
  transition: color var(--transition-base), background-color var(--transition-base);
}

.nav-list a:hover {
  color: var(--color-text);
  background-color: rgba(255, 255, 255, 0.06);
}

.nav-list a.is-current {
  color: var(--color-text);
  background-color: rgba(233, 69, 96, 0.18);
}

.nav-list a.is-current::after {
  content: "";
  position: absolute;
  bottom: 2px;
  left: 16px;
  right: 16px;
  height: 2px;
  background-color: var(--color-accent);
  border-radius: 1px;
}

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

.site-footer {
  flex-shrink: 0;
  background-color: var(--color-bg-alt);
  border-top: 1px solid var(--color-border);
  margin-top: 64px;
}

.footer-content {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 48px var(--container-padding) 24px;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 40px;
}

.footer-intro {
  max-width: 420px;
}

.footer-brand {
  font-size: 18px;
  margin-bottom: 12px;
}

.footer-desc {
  font-size: 14px;
  line-height: 1.7;
  color: var(--color-text-muted);
}

.footer-heading {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 14px;
  color: var(--color-text);
}

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

.footer-links a {
  font-size: 14px;
  color: var(--color-text-muted);
}

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

.footer-info p {
  font-size: 14px;
  line-height: 1.7;
  color: var(--color-text-muted);
}

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

.footer-bottom p {
  font-size: 13px;
  color: var(--color-text-muted);
}

/* ==========================================================================
   components — 通用组件
   ========================================================================== */

/* 面包屑 */
.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 14px;
  color: var(--color-text-muted);
  margin-bottom: 24px;
}

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

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

.breadcrumb-sep {
  color: var(--color-text-muted);
  opacity: 0.6;
}

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

/* 页面标题区 */
.page-header {
  margin-bottom: 40px;
}

.page-title {
  font-size: 32px;
  font-weight: 700;
  margin-bottom: 12px;
}

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

/* 区块标题 */
.section-title {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 20px;
  position: relative;
  padding-left: 14px;
}

.section-title::before {
  content: "";
  position: absolute;
  left: 0;
  top: 6px;
  bottom: 6px;
  width: 4px;
  border-radius: 2px;
  background-color: var(--color-accent);
}

/* 相关推荐卡片 */
.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.related-card {
  display: block;
  padding: 20px;
  background-color: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-base), transform var(--transition-base);
}

.related-card:hover {
  border-color: var(--color-accent);
  transform: translateY(-2px);
}

.related-card h3 {
  font-size: 16px;
  margin-bottom: 8px;
}

.related-card p {
  font-size: 14px;
  color: var(--color-text-muted);
}

.related-card a {
  display: inline-block;
  margin-top: 10px;
  font-size: 14px;
  color: var(--color-accent);
}

/* ==========================================================================
   pages — 首页样式
   ========================================================================== */

/* Hero 区 */
.hero-section {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 64px var(--container-padding) 48px;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
}

.hero-content {
  max-width: 560px;
}

.hero-title {
  font-size: 40px;
  line-height: 1.25;
  margin-bottom: 20px;
}

.hero-lead {
  font-size: 17px;
  line-height: 1.8;
  color: var(--color-text-muted);
  margin-bottom: 28px;
}

.cta-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 28px;
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text);
  background-color: var(--color-accent);
  border-radius: var(--radius-md);
  transition: background-color var(--transition-base), transform var(--transition-base);
}

.cta-button:hover {
  background-color: var(--color-accent-hover);
  transform: translateY(-2px);
}

.hero-figure {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.35);
}

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

/* 题材标签带 */
.genre-strip {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--container-padding) 40px;
}

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

.genre-chip {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 6px 20px;
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text-soft);
  background-color: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: 999px;
  transition: border-color var(--transition-base), color var(--transition-base), background-color var(--transition-base);
}

.genre-chip:hover {
  color: var(--color-text);
  border-color: var(--color-accent);
  background-color: rgba(233, 69, 96, 0.12);
}

/* 最近更新 */
.recent-updates {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--container-padding) 48px;
}

.update-group {
  margin-bottom: 28px;
}

.update-date {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--color-text-soft);
  display: flex;
  align-items: center;
  gap: 10px;
}

.update-date::after {
  content: "";
  flex: 1;
  height: 1px;
  background-color: var(--color-border);
}

.update-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.update-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  transition: background-color var(--transition-base);
}

.update-item:hover {
  background-color: rgba(255, 255, 255, 0.04);
}

.update-link {
  flex: 1;
  font-size: 15px;
  color: var(--color-text-soft);
}

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

.update-tag {
  flex-shrink: 0;
  font-size: 12px;
  color: var(--color-accent);
  background-color: rgba(233, 69, 96, 0.12);
  border: 1px solid rgba(233, 69, 96, 0.3);
  border-radius: var(--radius-sm);
  padding: 2px 10px;
}

/* 人气榜单 */
.ranking-preview {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--container-padding) 48px;
}

.ranking-list {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
}

.ranking-item {
  background-color: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color var(--transition-base), transform var(--transition-base);
}

.ranking-item:hover {
  border-color: var(--color-accent);
  transform: translateY(-3px);
}

.ranking-figure {
  position: relative;
  overflow: hidden;
}

.ranking-figure img {
  width: 100%;
  height: 180px;
  object-fit: cover;
}

.ranking-info {
  padding: 14px;
}

.ranking-name {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 6px;
}

.ranking-reason {
  font-size: 13px;
  line-height: 1.6;
  color: var(--color-text-muted);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* 指南入口 */
.guide-entry {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--container-padding) 48px;
}

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

.guide-card {
  display: block;
  padding: 28px;
  background-color: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-base), transform var(--transition-base);
}

.guide-card:hover {
  border-color: var(--color-accent);
  transform: translateY(-2px);
}

.guide-card-title {
  font-size: 18px;
  margin-bottom: 10px;
}

.guide-card-title::before {
  content: "›";
  color: var(--color-accent);
  margin-right: 8px;
}

.guide-card-text {
  font-size: 14px;
  line-height: 1.7;
  color: var(--color-text-muted);
}

/* 长尾推荐预告 */
.longtail-preview {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--container-padding) 48px;
}

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

.feature-card {
  display: block;
  background-color: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color var(--transition-base), transform var(--transition-base);
}

.feature-card:hover {
  border-color: var(--color-accent);
  transform: translateY(-2px);
}

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

.feature-card-title {
  font-size: 18px;
  padding: 16px 20px 6px;
}

.feature-card-text {
  font-size: 14px;
  color: var(--color-text-muted);
  padding: 0 20px 20px;
}

/* ==========================================================================
   pages — 内页通用
   ========================================================================== */

.inner-main {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 32px var(--container-padding) 0;
  width: 100%;
}

/* 侧栏布局 */
.layout-shell {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 32px var(--container-padding) 0;
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 32px;
  align-items: start;
}

.sidebar-left .sidebar {
  grid-column: 1;
  grid-row: 1;
}

.sidebar-left .inner-main {
  grid-column: 2;
  grid-row: 1;
  padding: 0;
}

.sidebar {
  position: sticky;
  top: calc(var(--header-height) + 24px);
  display: flex;
  flex-direction: column;
  gap: 20px;
}

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

.sidebar-title {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 14px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--color-border);
}

.sidebar-list {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.sidebar-list li {
  margin: 0;
}

.sidebar-link {
  display: block;
  padding: 8px 12px;
  font-size: 14px;
  color: var(--color-text-soft);
  border-radius: var(--radius-sm);
  transition: background-color var(--transition-base), color var(--transition-base);
}

.sidebar-link:hover {
  color: var(--color-text);
  background-color: rgba(255, 255, 255, 0.06);
}

/* ==========================================================================
   pages — 题材分类页
   ========================================================================== */

.genre-block {
  margin-bottom: 40px;
  scroll-margin-top: calc(var(--header-height) + 20px);
}

.genre-header {
  margin-bottom: 16px;
}

.genre-title {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 6px;
}

.genre-desc {
  font-size: 14px;
  color: var(--color-text-muted);
  line-height: 1.7;
}

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

.genre-card {
  display: flex;
  gap: 14px;
  background-color: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 14px;
  transition: border-color var(--transition-base);
}

.genre-card:hover {
  border-color: var(--color-accent);
}

.card-img {
  width: 88px;
  height: 120px;
  object-fit: cover;
  border-radius: var(--radius-sm);
  flex-shrink: 0;
}

.card-info {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.card-name {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text);
}

.card-reason {
  font-size: 13px;
  line-height: 1.6;
  color: var(--color-text-muted);
}

.inner-links {
  margin-top: 32px;
  padding: 24px;
  background-color: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

.inner-links-title {
  font-size: 18px;
  margin-bottom: 10px;
}

.inner-links-text {
  font-size: 14px;
  line-height: 1.8;
  color: var(--color-text-muted);
}

.inner-links-text a {
  color: var(--color-accent);
  margin-right: 16px;
}

.inner-links-text a:hover {
  color: var(--color-accent-hover);
  text-decoration: underline;
}

/* ==========================================================================
   pages — 阅读指南页
   ========================================================================== */

.guide-section {
  margin-bottom: 48px;
  scroll-margin-top: calc(var(--header-height) + 20px);
}

.guide-section h2 {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 10px;
}

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

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

.guide-step {
  background-color: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color var(--transition-base);
}

.guide-step:hover {
  border-color: var(--color-accent);
}

.step-media {
  overflow: hidden;
}

.step-media img {
  width: 100%;
  height: 140px;
  object-fit: cover;
}

.step-content {
  padding: 18px;
}

.step-content h3 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 8px;
}

.step-content p {
  font-size: 14px;
  line-height: 1.7;
  color: var(--color-text-muted);
}

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

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

.platform-card:hover {
  border-color: var(--color-accent);
}

.platform-card h3 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 8px;
}

.platform-card p {
  font-size: 14px;
  line-height: 1.7;
  color: var(--color-text-muted);
}

.platform-card a {
  display: inline-block;
  margin-top: 6px;
  font-size: 14px;
  color: var(--color-accent);
}

.faq-item {
  background-color: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  margin-bottom: 10px;
  overflow: hidden;
}

.faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text);
  cursor: pointer;
  list-style: none;
  transition: background-color var(--transition-base);
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  content: "+";
  font-size: 18px;
  color: var(--color-accent);
  transition: transform var(--transition-base);
}

.faq-item[open] summary::after {
  transform: rotate(45deg);
}

.faq-item summary:hover {
  background-color: rgba(255, 255, 255, 0.04);
}

.faq-item p {
  padding: 0 20px 16px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--color-text-muted);
}

.related-links {
  margin-top: 40px;
}

.related-links h2 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 16px;
}

/* ==========================================================================
   pages — 恋爱漫画推荐页
   ========================================================================== */

.recommendations {
  margin-bottom: 48px;
}

.recommendations > h2 {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 20px;
}

.recommend-card {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 20px;
  background-color: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 20px;
  margin-bottom: 16px;
  transition: border-color var(--transition-base);
}

.recommend-card:hover {
  border-color: var(--color-accent);
}

.recommend-media {
  overflow: hidden;
  border-radius: var(--radius-sm);
}

.recommend-media img {
  width: 160px;
  height: 220px;
  object-fit: cover;
}

.recommend-body {
  min-width: 0;
}

.recommend-body h3 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 6px;
}

.recommend-meta {
  font-size: 13px;
  color: var(--color-accent);
  margin-bottom: 8px;
}

.recommend-text {
  font-size: 14px;
  line-height: 1.7;
  color: var(--color-text-muted);
  margin-bottom: 10px;
}

.recommend-reason {
  font-size: 14px;
  line-height: 1.7;
  color: var(--color-text-soft);
  background-color: rgba(233, 69, 96, 0.08);
  border-left: 3px solid var(--color-accent);
  padding: 10px 14px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.recommend-reason strong {
  color: var(--color-accent);
  margin-right: 6px;
}

.selection-tips {
  margin-bottom: 48px;
  padding: 24px;
  background-color: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

.selection-tips h2 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 12px;
}

.selection-tips p {
  font-size: 14px;
  line-height: 1.8;
  color: var(--color-text-muted);
  margin-bottom: 8px;
}

.related-reading {
  margin-bottom: 48px;
}

.related-reading h2 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 16px;
}

/* ==========================================================================
   pages — 热血漫画推荐页
   ========================================================================== */

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

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

.rec-card {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 18px;
  background-color: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 18px;
  margin-bottom: 16px;
  transition: border-color var(--transition-base);
}

.rec-card:hover {
  border-color: var(--color-accent);
}

.rec-media {
  overflow: hidden;
  border-radius: var(--radius-sm);
}

.rec-media img {
  width: 140px;
  height: 190px;
  object-fit: cover;
}

.rec-body {
  min-width: 0;
}

.rec-name {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 6px;
}

.rec-tags {
  font-size: 13px;
  color: var(--color-accent);
  margin-bottom: 8px;
}

.rec-reason {
  font-size: 14px;
  line-height: 1.7;
  color: var(--color-text-soft);
  background-color: rgba(233, 69, 96, 0.08);
  border-left: 3px solid var(--color-accent);
  padding: 10px 14px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.rec-reason strong {
  color: var(--color-accent);
  margin-right: 6px;
}

.reason-section {
  margin-bottom: 48px;
}

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

.reason-item {
  background-color: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 20px;
  transition: border-color var(--transition-base);
}

.reason-item:hover {
  border-color: var(--color-accent);
}

.reason-item h3 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 8px;
}

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

.related-title {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 16px;
}

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

.related-list a {
  display: block;
  padding: 12px 16px;
  font-size: 14px;
  color: var(--color-text-soft);
  background-color: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  transition: border-color var(--transition-base), color var(--transition-base);
}

.related-list a:hover {
  color: var(--color-text);
  border-color: var(--color-accent);
}

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

.error-main {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 80px var(--container-padding);
  text-align: center;
}

.error-section {
  max-width: 560px;
  margin-bottom: 48px;
}

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

.error-title {
  font-size: 28px;
  margin-bottom: 16px;
}

.error-desc {
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-text-muted);
  margin-bottom: 28px;
}

.error-back {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 28px;
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text);
  background-color: var(--color-accent);
  border-radius: var(--radius-md);
  transition: background-color var(--transition-base), transform var(--transition-base);
}

.error-back:hover {
  background-color: var(--color-accent-hover);
  transform: translateY(-2px);
}

.error-links {
  width: 100%;
  max-width: 720px;
}

.error-links-title {
  font-size: 18px;
  margin-bottom: 16px;
}

.error-links-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.error-links-list a {
  display: block;
  padding: 12px 16px;
  font-size: 14px;
  color: var(--color-text-soft);
  background-color: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  transition: border-color var(--transition-base), color var(--transition-base);
}

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

/* ==========================================================================
   responsive — 响应式
   ========================================================================== */

@media (max-width: 1024px) {
  .ranking-list {
    grid-template-columns: repeat(3, 1fr);
  }

  .ranking-item:nth-child(4),
  .ranking-item:nth-child(5) {
    grid-column: span 1;
  }

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

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

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

@media (max-width: 768px) {
  :root {
    --container-padding: 16px;
    --header-height: 60px;
  }

  h1 {
    font-size: 26px;
  }

  h2 {
    font-size: 22px;
  }

  /* 移动导航 */
  .nav-toggle {
    display: inline-flex;
  }

  .nav-list {
    display: none;
    position: absolute;
    top: var(--header-height);
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background-color: var(--color-bg-alt);
    border-bottom: 1px solid var(--color-border);
    padding: 8px 16px 16px;
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.3);
  }

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

  .nav-list li {
    width: 100%;
  }

  .nav-list a {
    padding: 12px 16px;
    font-size: 15px;
  }

  .nav-list a.is-current::after {
    display: none;
  }

  .header-inner {
    position: relative;
  }

  /* Hero */
  .hero-section {
    grid-template-columns: 1fr;
    gap: 32px;
    padding: 40px 16px 32px;
  }

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

  .hero-figure img {
    height: 220px;
  }

  /* 首页模块 */
  .genre-strip,
  .recent-updates,
  .ranking-preview,
  .guide-entry,
  .longtail-preview {
    padding-left: 16px;
    padding-right: 16px;
  }

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

  .ranking-figure img {
    height: 140px;
  }

  .guide-cards,
  .feature-cards {
    grid-template-columns: 1fr;
  }

  .update-item {
    flex-wrap: wrap;
    gap: 6px;
  }

  .update-link {
    flex-basis: calc(100% - 80px);
  }

  /* 内页 */
  .inner-main {
    padding: 24px 16px 0;
  }

  .layout-shell {
    display: block;
    padding: 24px 16px 0;
  }

  .sidebar {
    position: static;
    margin-bottom: 32px;
    order: -1;
  }

  .sidebar-left .sidebar {
    margin-bottom: 32px;
  }

  .sidebar-left .inner-main {
    padding: 0;
  }

  .page-header {
    margin-bottom: 28px;
  }

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

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

  .genre-block {
    margin-bottom: 32px;
  }

  /* 指南页 */
  .step-list {
    grid-template-columns: 1fr;
  }

  .platform-modules {
    grid-template-columns: 1fr;
  }

  /* 推荐页 */
  .recommend-card {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .recommend-media img {
    width: 100%;
    height: 200px;
  }

  .rec-card {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .rec-media img {
    width: 100%;
    height: 180px;
  }

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

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

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

  /* 页脚 */
  .footer-content {
    grid-template-columns: 1fr;
    gap: 28px;
    padding: 40px 16px 20px;
  }

  .footer-intro {
    max-width: 100%;
  }

  .footer-bottom {
    padding: 14px 16px;
  }

  /* 404 */
  .error-main {
    padding: 48px 16px;
  }

  .error-code {
    font-size: 72px;
  }

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

@media (max-width: 480px) {
  .ranking-list {
    grid-template-columns: 1fr;
  }

  .ranking-figure img {
    height: 160px;
  }

  .genre-chip {
    padding: 6px 14px;
    font-size: 14px;
  }

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

  .cta-button {
    width: 100%;
  }
}