/* ==========================================================
   禁漫画 - 全站样式表
   音乐杂志风 · 漫画阅读站
   ========================================================== */

/* ==========================================================
   Base
   ========================================================== */
:root {
  --color-primary: #1a1a2e;
  --color-accent: #e94560;
  --color-secondary: #0f3460;
  --color-bg: #f5f5f5;
  --color-surface: #ffffff;
  --color-text: #2d2d3a;
  --color-text-light: #6b6b7d;
  --color-border: #e3e3ec;
  --color-shadow: rgba(26, 26, 46, 0.08);
  --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-heading: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --container-width: 1200px;
  --radius: 8px;
  --transition: 0.25s 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: 1.6;
  color: var(--color-text);
  background-color: var(--color-bg);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

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

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

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

h1 {
  font-size: 2rem;
}

h2 {
  font-size: 1.5rem;
}

h3 {
  font-size: 1.2rem;
}

h4 {
  font-size: 1rem;
}

p {
  margin-bottom: 1rem;
}

/* ==========================================================
   Layout
   ========================================================== */

/* 全站统一页头 */
.site-header {
  background-color: var(--color-primary);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

.header-inner {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 20px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.brand-logo {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: 700;
  color: #ffffff;
  white-space: nowrap;
  letter-spacing: 0.02em;
}

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

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

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

.nav-list a {
  display: block;
  padding: 8px 14px;
  color: rgba(255, 255, 255, 0.85);
  font-size: 0.95rem;
  border-radius: 6px;
  transition: background-color var(--transition), color var(--transition);
}

.nav-list a:hover {
  color: #ffffff;
  background-color: rgba(255, 255, 255, 0.1);
}

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

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  flex-direction: column;
  gap: 5px;
}

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

/* 页脚 */
.site-footer {
  background-color: var(--color-primary);
  color: rgba(255, 255, 255, 0.7);
  margin-top: auto;
}

.footer-columns {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 48px 20px 32px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}

.footer-heading {
  color: #ffffff;
  font-size: 0.95rem;
  margin-bottom: 14px;
}

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

.footer-col a {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.9rem;
}

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

.footer-bottom {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.footer-brand {
  color: rgba(255, 255, 255, 0.85);
  font-size: 0.9rem;
  font-weight: 600;
}

.footer-copy {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.5);
}

/* 内页统一容器 */
.site-main {
  flex: 1;
}

.inner-main {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 32px 20px 56px;
  width: 100%;
}

/* 面包屑 */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
  margin-bottom: 24px;
  color: var(--color-text-light);
}

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

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

.breadcrumb-sep {
  color: #b0b0c0;
}

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

/* 页面标题区 */
.page-header {
  margin-bottom: 32px;
}

.page-title {
  font-size: 2rem;
  margin-bottom: 8px;
}

.page-description {
  font-size: 1.05rem;
  color: var(--color-text-light);
  max-width: 720px;
}

/* 通用 section 标题 */
.section-title {
  font-size: 1.35rem;
  margin-bottom: 16px;
  position: relative;
  padding-left: 14px;
}

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

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

/* 按钮 */
.btn-primary {
  display: inline-block;
  padding: 10px 24px;
  background-color: var(--color-accent);
  color: #ffffff;
  border-radius: var(--radius);
  font-size: 0.95rem;
  font-weight: 600;
  transition: background-color var(--transition), transform var(--transition);
}

.btn-primary:hover {
  background-color: #d63851;
  color: #ffffff;
  transform: translateY(-2px);
}

.btn-secondary {
  display: inline-block;
  padding: 10px 24px;
  background-color: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
  border-radius: var(--radius);
  font-size: 0.95rem;
  font-weight: 600;
  transition: background-color var(--transition), color var(--transition);
}

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

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

.related-links h2 {
  font-size: 1.2rem;
  margin-bottom: 16px;
}

.related-list li {
  margin-bottom: 10px;
  padding-left: 16px;
  position: relative;
}

.related-list li::before {
  content: "›";
  position: absolute;
  left: 0;
  color: var(--color-accent);
  font-weight: 700;
}

/* ==========================================================
   Components
   ========================================================== */

/* 漫画封面卡通用样式 */
.genre-card .genre-card-media,
.ranking-item .rank-cover,
.update-item img,
.hero-figure,
.guide-figure,
.article-media {
  overflow: hidden;
  background-color: #e8e8f0;
}

.genre-card .genre-card-media img,
.ranking-item .rank-cover img,
.update-item img,
.hero-figure img,
.guide-figure img,
.article-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.genre-card:hover .genre-card-media img,
.ranking-item:hover .rank-cover img,
.update-item:hover img {
  transform: scale(1.04);
}

/* 图片容器宽高约束 */
.hero-figure {
  border-radius: var(--radius);
  box-shadow: 0 8px 24px var(--color-shadow);
}

.hero-figure img {
  aspect-ratio: 4 / 5;
}

.genre-card-media {
  border-radius: var(--radius);
}

.genre-card-media img {
  aspect-ratio: 3 / 4;
}

.update-item img {
  width: 72px;
  height: 96px;
  border-radius: 6px;
  flex-shrink: 0;
}

.rank-cover img {
  aspect-ratio: 3 / 4;
  border-radius: 6px;
}

.guide-figure img {
  aspect-ratio: 16 / 9;
  border-radius: var(--radius);
}

.article-media img {
  aspect-ratio: 16 / 9;
  border-radius: var(--radius);
}

/* 首页 Hero */
.hero-section {
  background-color: var(--color-surface);
  padding: 56px 0;
  border-bottom: 1px solid var(--color-border);
}

.hero-section {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 56px 20px;
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 48px;
  align-items: center;
}

.hero-copy h1 {
  font-size: 2.4rem;
  margin-bottom: 16px;
  line-height: 1.25;
}

.hero-lead {
  font-size: 1.1rem;
  color: var(--color-text-light);
  margin-bottom: 24px;
  max-width: 480px;
}

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

/* 题材标签导航（首页） */
.genre-nav-section {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 48px 20px;
}

.genre-tags {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 12px;
}

.genre-tags a {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 14px 12px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  color: var(--color-primary);
  font-weight: 600;
  font-size: 0.95rem;
  text-align: center;
  transition: background-color var(--transition), color var(--transition), border-color var(--transition);
}

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

.genre-more {
  margin-top: 20px;
  text-align: right;
}

.genre-more a {
  font-size: 0.9rem;
  font-weight: 500;
}

/* 更新列表（首页 & 更新页） */
.update-list-section {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 48px 20px;
}

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

.update-date {
  font-size: 1rem;
  color: var(--color-secondary);
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--color-border);
}

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

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

.update-item:hover {
  box-shadow: 0 4px 16px var(--color-shadow);
  transform: translateY(-2px);
}

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

.update-info h4 {
  font-size: 0.95rem;
  margin-bottom: 6px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.update-status {
  display: inline-block;
  font-size: 0.8rem;
  color: var(--color-accent);
  background-color: rgba(233, 69, 96, 0.08);
  padding: 2px 10px;
  border-radius: 20px;
  font-weight: 500;
}

.section-footer-link {
  margin-top: 24px;
  text-align: center;
}

.section-footer-link a {
  font-weight: 600;
  font-size: 0.95rem;
}

/* 人气榜单预览（首页） */
.ranking-preview-section {
  background-color: var(--color-surface);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.ranking-preview-section {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 48px 20px;
}

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

.ranking-item {
  background-color: var(--color-bg);
  border-radius: var(--radius);
  padding: 16px;
  display: flex;
  gap: 14px;
  align-items: flex-start;
  border: 1px solid var(--color-border);
  transition: box-shadow var(--transition);
}

.ranking-item:hover {
  box-shadow: 0 4px 16px var(--color-shadow);
}

.rank-number {
  font-family: var(--font-heading);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--color-accent);
  line-height: 1;
  min-width: 28px;
}

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

.rank-info h3 {
  font-size: 1rem;
  margin-bottom: 6px;
}

.rank-info p {
  font-size: 0.85rem;
  color: var(--color-text-light);
  margin-bottom: 0;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* 指南入口卡片（首页） */
.guide-entry-section {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 48px 20px;
}

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

.guide-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 28px;
  transition: box-shadow var(--transition), transform var(--transition);
}

.guide-card:hover {
  box-shadow: 0 8px 24px var(--color-shadow);
  transform: translateY(-4px);
}

.guide-card h3 {
  font-size: 1.15rem;
  margin-bottom: 10px;
  color: var(--color-primary);
}

.guide-card p {
  color: var(--color-text-light);
  font-size: 0.95rem;
  margin-bottom: 16px;
}

.card-link {
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--color-accent);
}

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

/* 侧栏通用 */
.aside-inner {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 20px;
}

.aside-title {
  font-size: 1.05rem;
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--color-accent);
}

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

.aside-list a {
  display: block;
  padding: 8px 10px;
  border-radius: 6px;
  font-size: 0.92rem;
  color: var(--color-text);
  transition: background-color var(--transition), color var(--transition);
}

.aside-list a:hover {
  background-color: rgba(233, 69, 96, 0.08);
  color: var(--color-accent);
}

.aside-note {
  font-size: 0.85rem;
  color: var(--color-text-light);
  margin-top: 16px;
  padding-top: 12px;
  border-top: 1px solid var(--color-border);
}

/* 侧栏布局：genre 页 */
.layout-shell.sidebar-left {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 32px 20px 56px;
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 32px;
  align-items: start;
}

.layout-shell.sidebar-left .page-aside {
  position: sticky;
  top: 80px;
}

/* 侧栏布局：guide / ranking 页 */
.page-layout {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 40px;
  align-items: start;
}

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

.guide-aside,
.ranking-aside {
  position: sticky;
  top: 80px;
}

/* ==========================================================
   Pages
   ========================================================== */

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

/* ---------- 题材分类页 ---------- */
.genre-section {
  margin-bottom: 48px;
}

.genre-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 32px;
}

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

.genre-card:hover {
  box-shadow: 0 8px 24px var(--color-shadow);
  transform: translateY(-4px);
}

.genre-card-media {
  position: relative;
}

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

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

.genre-card-title {
  font-size: 1.05rem;
  margin-bottom: 8px;
}

.genre-card-body p {
  font-size: 0.88rem;
  color: var(--color-text-light);
  margin-bottom: 12px;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.genre-card-body a {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--color-accent);
}

.genre-description-section {
  margin-top: 48px;
}

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

.genre-desc-item {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 20px;
}

.genre-desc-item h3 {
  font-size: 1rem;
  margin-bottom: 8px;
  color: var(--color-secondary);
}

.genre-desc-item p {
  font-size: 0.9rem;
  color: var(--color-text-light);
  margin-bottom: 0;
}

/* ---------- 阅读指南页 ---------- */
.guide-section {
  margin-bottom: 40px;
  padding-bottom: 32px;
  border-bottom: 1px solid var(--color-border);
}

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

.guide-section h2 {
  font-size: 1.3rem;
  margin-bottom: 16px;
  color: var(--color-primary);
}

.guide-section p {
  color: var(--color-text);
  margin-bottom: 14px;
}

.guide-figure {
  margin: 20px 0;
  border-radius: var(--radius);
  background-color: var(--color-bg);
}

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

.guide-aside .aside-inner h3 {
  font-size: 1.05rem;
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--color-accent);
}

.guide-aside .aside-inner ul li {
  margin-bottom: 4px;
}

.guide-aside .aside-inner ul a {
  display: block;
  padding: 8px 10px;
  border-radius: 6px;
  font-size: 0.92rem;
  color: var(--color-text);
  transition: background-color var(--transition), color var(--transition);
}

.guide-aside .aside-inner ul a:hover {
  background-color: rgba(233, 69, 96, 0.08);
  color: var(--color-accent);
}

/* ---------- 人气榜单页 ---------- */
.ranking-section {
  margin-bottom: 48px;
}

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

.ranking-list .ranking-item {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 16px;
  display: flex;
  gap: 20px;
  align-items: center;
  transition: box-shadow var(--transition);
}

.ranking-list .ranking-item:hover {
  box-shadow: 0 4px 16px var(--color-shadow);
}

.ranking-list .rank-number {
  font-size: 1.8rem;
  min-width: 40px;
  text-align: center;
  color: var(--color-accent);
}

.ranking-list .rank-cover {
  width: 90px;
  height: 120px;
  flex-shrink: 0;
  border-radius: 6px;
  overflow: hidden;
}

.ranking-list .rank-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

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

.rank-title {
  font-size: 1.1rem;
  margin-bottom: 6px;
}

.rank-reason {
  font-size: 0.9rem;
  color: var(--color-text-light);
  margin-bottom: 8px;
}

.rank-tags {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.rank-tags span {
  font-size: 0.78rem;
  background-color: var(--color-bg);
  color: var(--color-secondary);
  padding: 2px 10px;
  border-radius: 20px;
  border: 1px solid var(--color-border);
}

.ranking-note-section {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 24px;
  margin-top: 40px;
}

.note-content p {
  color: var(--color-text-light);
  font-size: 0.92rem;
  margin-bottom: 10px;
}

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

.ranking-aside {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.ranking-aside .aside-block {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 20px;
}

.ranking-aside .aside-title {
  font-size: 1.05rem;
  margin-bottom: 14px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--color-accent);
}

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

.ranking-aside .aside-links a {
  display: block;
  padding: 8px 10px;
  border-radius: 6px;
  font-size: 0.92rem;
  color: var(--color-text);
  transition: background-color var(--transition), color var(--transition);
}

.ranking-aside .aside-links a:hover {
  background-color: rgba(233, 69, 96, 0.08);
  color: var(--color-accent);
}

/* ---------- 最近更新页 ---------- */
.update-content {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 40px;
  align-items: start;
}

.update-list-section {
  padding: 0;
  max-width: 100%;
}

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

.update-item .update-info h4 {
  font-size: 1rem;
}

.update-meta {
  font-size: 0.82rem;
  color: var(--color-text-light);
  margin-top: 4px;
}

.update-desc {
  font-size: 0.88rem;
  color: var(--color-text-light);
  margin-top: 4px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.update-status-section {
  margin-top: 48px;
}

.status-explainer {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 20px;
}

.status-explainer p {
  color: var(--color-text-light);
  font-size: 0.92rem;
  margin-bottom: 12px;
}

.status-list {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 12px;
}

.status-list li {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
}

.status-badge {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  padding: 2px 10px;
  border-radius: 20px;
}

.status-badge::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  margin-right: 6px;
  vertical-align: middle;
}

.update-related-links {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 20px;
  position: sticky;
  top: 80px;
}

.related-title {
  font-size: 1.05rem;
  margin-bottom: 14px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--color-accent);
}

.update-related-links .related-list li {
  margin-bottom: 4px;
}

.update-related-links .related-list a {
  display: block;
  padding: 8px 10px;
  border-radius: 6px;
  font-size: 0.92rem;
  color: var(--color-text);
  transition: background-color var(--transition), color var(--transition);
}

.update-related-links .related-list a:hover {
  background-color: rgba(233, 69, 96, 0.08);
  color: var(--color-accent);
}

/* ---------- 追更技巧页 ---------- */
.tips-article {
  max-width: 860px;
}

.article-media {
  margin-bottom: 32px;
  border-radius: var(--radius);
}

.article-media figcaption {
  padding: 12px 16px;
  font-size: 0.85rem;
  color: var(--color-text-light);
  text-align: center;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-top: none;
  border-radius: 0 0 var(--radius) var(--radius);
}

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

.tips-section:last-of-type {
  border-bottom: none;
}

.tips-section h2 {
  font-size: 1.3rem;
  margin-bottom: 16px;
  color: var(--color-primary);
}

.tips-section p {
  color: var(--color-text);
  margin-bottom: 14px;
}

.faq-item {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  margin-bottom: 12px;
  overflow: hidden;
}

.faq-item summary {
  padding: 16px 20px;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  list-style: none;
  position: relative;
  padding-right: 40px;
  transition: background-color var(--transition);
}

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

.faq-item summary::after {
  content: "+";
  position: absolute;
  right: 20px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.2rem;
  color: var(--color-accent);
  transition: transform var(--transition);
}

.faq-item[open] summary::after {
  transform: translateY(-50%) rotate(45deg);
}

.faq-item summary:hover {
  background-color: rgba(233, 69, 96, 0.04);
}

.faq-item p {
  padding: 0 20px 16px;
  font-size: 0.92rem;
  color: var(--color-text-light);
  margin-bottom: 0;
}

/* ---------- 404 页 ---------- */
.error-main {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: calc(100vh - 64px - 280px);
  padding: 48px 20px;
}

.error-section {
  text-align: center;
  max-width: 520px;
}

.error-code {
  font-family: var(--font-heading);
  font-size: 6rem;
  font-weight: 700;
  color: var(--color-accent);
  line-height: 1;
  margin-bottom: 16px;
}

.error-title {
  font-size: 1.6rem;
  margin-bottom: 12px;
}

.error-desc {
  color: var(--color-text-light);
  margin-bottom: 28px;
}

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

.error-suggest {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 20px;
  text-align: left;
}

.error-suggest p {
  font-weight: 600;
  margin-bottom: 12px;
  font-size: 0.95rem;
}

.error-suggest li {
  margin-bottom: 8px;
  padding-left: 16px;
  position: relative;
}

.error-suggest li::before {
  content: "›";
  position: absolute;
  left: 0;
  color: var(--color-accent);
  font-weight: 700;
}

.error-suggest a {
  font-size: 0.92rem;
}

/* ==========================================================
   Responsive
   ========================================================== */

/* 平板 */
@media (max-width: 1024px) {
  .genre-tags {
    grid-template-columns: repeat(3, 1fr);
  }

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

  .layout-shell.sidebar-left {
    grid-template-columns: 200px 1fr;
    gap: 24px;
  }

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

  .update-content {
    grid-template-columns: 1fr 240px;
    gap: 24px;
  }

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

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

  .nav-toggle {
    display: flex;
  }

  .site-nav {
    position: absolute;
    top: 56px;
    left: 0;
    right: 0;
    background-color: var(--color-primary);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
  }

  .nav-list {
    display: none;
    flex-direction: column;
    padding: 12px 16px;
    gap: 0;
    width: 100%;
  }

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

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

  .nav-list a {
    padding: 12px 16px;
    border-radius: 6px;
    width: 100%;
  }

  .hero-section {
    grid-template-columns: 1fr;
    gap: 24px;
    padding: 40px 16px;
  }

  .hero-copy h1 {
    font-size: 1.8rem;
  }

  .hero-figure {
    max-width: 320px;
    margin: 0 auto;
  }

  .genre-nav-section,
  .update-list-section,
  .ranking-preview-section,
  .guide-entry-section {
    padding: 36px 16px;
  }

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

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

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

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

  .inner-main {
    padding: 24px 16px 40px;
  }

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

  .layout-shell.sidebar-left {
    grid-template-columns: 1fr;
    padding: 24px 16px 40px;
  }

  .layout-shell.sidebar-left .page-aside {
    position: static;
    order: -1;
    margin-bottom: 24px;
  }

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

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

  .guide-aside,
  .ranking-aside {
    position: static;
  }

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

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

  .update-content {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .update-related-links {
    position: static;
  }

  .ranking-list .ranking-item {
    flex-wrap: wrap;
  }

  .ranking-list .rank-cover {
    width: 80px;
    height: 106px;
  }

  .ranking-list .rank-number {
    min-width: 32px;
  }

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

  .footer-bottom {
    flex-direction: column;
    text-align: center;
    padding: 16px;
  }

  .error-main {
    min-height: auto;
    padding: 32px 16px;
  }

  .error-code {
    font-size: 4rem;
  }
}

/* 小屏手机 */
@media (max-width: 480px) {
  .genre-tags {
    grid-template-columns: repeat(2, 1fr);
  }

  .genre-tags a {
    padding: 12px 8px;
    font-size: 0.88rem;
  }

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

  .update-item img {
    width: 64px;
    height: 84px;
  }

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

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