/* ==========================================================================
   77漫画 · 全站样式表
   设计方向：公共交通风（地铁蓝 + 橙色强调）
   分组：base / layout / components / pages / responsive
   ========================================================================== */

/* ==========================================================================
   Base —— 变量、重置、全局基础
   ========================================================================== */

:root {
  --color-primary: #1E88E5;
  --color-primary-dark: #1565C0;
  --color-accent: #FFB300;
  --color-accent-dark: #F57F17;
  --color-bg: #F5F7FA;
  --color-text: #212121;
  --color-text-secondary: #5F6368;
  --color-text-light: #9E9E9E;
  --color-border: #E0E0E0;
  --color-white: #FFFFFF;
  --color-card-bg: #FFFFFF;
  --color-updating: #43A047;
  --color-finished: #9E9E9E;

  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial, sans-serif;

  --container-width: 1200px;
  --container-padding: 24px;
  --header-height: 64px;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 8px;
  --transition-base: 0.2s 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-sans);
  font-size: 16px;
  line-height: 1.7;
  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-primary);
  text-decoration: none;
  transition: color var(--transition-base);
}

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

ul,
ol {
  list-style: none;
}

h1,
h2,
h3,
h4 {
  line-height: 1.3;
  font-weight: 600;
  color: var(--color-text);
}

h1 {
  font-size: 30px;
}

h2 {
  font-size: 24px;
}

h3 {
  font-size: 18px;
}

p {
  margin-bottom: 12px;
}

figure {
  margin: 0;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  top: -48px;
  left: 16px;
  z-index: 1000;
  padding: 10px 16px;
  background: var(--color-primary);
  color: var(--color-white);
  border-radius: var(--radius-sm);
  font-size: 14px;
  transition: top 0.2s ease;
}

.skip-link:focus {
  top: 8px;
}

/* ==========================================================================
   Layout —— 全站骨架：页头、页脚、主容器、面包屑
   ========================================================================== */

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

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

.header-inner {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
  height: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.brand-logo {
  display: flex;
  align-items: baseline;
  gap: 10px;
  flex-shrink: 0;
}

.brand-name {
  font-size: 24px;
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: 0;
}

.brand-slogan {
  font-size: 13px;
  color: var(--color-text-light);
  display: none;
}

.site-nav .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-text);
  border-radius: var(--radius-sm);
}

.nav-list li a:hover {
  color: var(--color-primary);
  background: rgba(30, 136, 229, 0.08);
}

.nav-list li a.is-current {
  color: var(--color-primary);
  background: rgba(30, 136, 229, 0.1);
  font-weight: 600;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
}

.nav-toggle-line {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: transform 0.25s ease, opacity 0.25s ease;
}

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

.inner-main {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 24px var(--container-padding) 56px;
  width: 100%;
}

/* 面包屑 */
.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 14px;
  color: var(--color-text-secondary);
  margin-bottom: 24px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--color-border);
}

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

.breadcrumb a:hover {
  text-decoration: underline;
}

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

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

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

.page-title {
  font-size: 32px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 8px;
}

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

/* 页脚 */
.site-footer {
  background: var(--color-white);
  border-top: 1px solid var(--color-border);
  margin-top: 48px;
}

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

.footer-col {
  min-width: 0;
}

.footer-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 14px;
}

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

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

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

.footer-copy {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 16px var(--container-padding) 24px;
  border-top: 1px solid var(--color-border);
  font-size: 13px;
  color: var(--color-text-light);
  text-align: center;
}

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

/* 区块标题 */
.section-title {
  font-size: 24px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 8px;
}

.section-desc,
.section-intro,
.section-lead {
  font-size: 15px;
  color: var(--color-text-secondary);
  margin-bottom: 20px;
  max-width: 680px;
}

/* 文字链接 */
.text-link {
  display: inline-block;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-primary);
  padding: 6px 0;
  border-bottom: 2px solid transparent;
}

.text-link:hover {
  color: var(--color-primary-dark);
  border-bottom-color: var(--color-primary);
}

/* 封面卡片（首页） */
.cover-card {
  background: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: box-shadow var(--transition-base), transform var(--transition-base);
}

.cover-card:hover {
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
  transform: translateY(-2px);
}

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

.cover-title {
  font-size: 14px;
  font-weight: 600;
  padding: 10px 12px 4px;
  line-height: 1.4;
}

.cover-tag {
  display: inline-block;
  font-size: 12px;
  color: var(--color-primary);
  background: rgba(30, 136, 229, 0.08);
  border-radius: var(--radius-sm);
  padding: 2px 8px;
  margin: 0 12px 12px;
}

/* 状态标记 */
.timeline-status,
.update-status,
.status-ongoing,
.status-finished {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  line-height: 1.6;
}

.is-updating,
.status-ongoing {
  color: var(--color-updating);
  background: rgba(67, 160, 71, 0.1);
}

.is-finished,
.status-finished {
  color: var(--color-finished);
  background: rgba(158, 158, 158, 0.12);
}

/* ==========================================================================
   Pages —— 首页
   ========================================================================== */

.home-main {
  width: 100%;
}

/* 首屏：最近更新 + 封面墙 */
.hero-update {
  background: var(--color-white);
  border-bottom: 1px solid var(--color-border);
  padding: 40px 0;
}

.hero-layout {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 40px;
  align-items: start;
}

.hero-title {
  font-size: 32px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 8px;
}

.hero-desc {
  font-size: 15px;
  color: var(--color-text-secondary);
  margin-bottom: 20px;
  max-width: 560px;
}

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

.hero-figure img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-radius: var(--radius-md);
}

/* 时间线 */
.timeline-list {
  position: relative;
  padding-left: 20px;
}

.timeline-list::before {
  content: "";
  position: absolute;
  left: 6px;
  top: 4px;
  bottom: 4px;
  width: 2px;
  background: var(--color-primary);
  opacity: 0.2;
  border-radius: 2px;
}

.timeline-item {
  position: relative;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px 12px;
  padding: 12px 0;
  border-bottom: 1px dashed var(--color-border);
}

.timeline-item:last-child {
  border-bottom: none;
}

.timeline-item::before {
  content: "";
  position: absolute;
  left: -20px;
  top: 50%;
  transform: translateY(-50%);
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--color-primary);
  border: 2px solid var(--color-white);
  box-shadow: 0 0 0 2px var(--color-primary);
}

.timeline-date {
  font-size: 13px;
  color: var(--color-text-secondary);
  min-width: 52px;
}

.timeline-title {
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text);
  flex: 1;
  min-width: 0;
}

/* 封面墙 */
.hero-coverwall {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.hero-link {
  grid-column: 1 / -1;
  display: inline-block;
  margin-top: 24px;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-primary);
  text-align: center;
  padding: 10px 20px;
  border: 1px solid var(--color-primary);
  border-radius: var(--radius-md);
}

.hero-link:hover {
  background: rgba(30, 136, 229, 0.08);
}

/* 题材分类导航 */
.category-nav {
  padding: 48px 0 24px;
}

.category-nav .section-title {
  max-width: var(--container-width);
  margin-left: auto;
  margin-right: auto;
  padding: 0 var(--container-padding);
}

.category-nav .section-desc {
  max-width: var(--container-width);
  margin-left: auto;
  margin-right: auto;
  padding: 0 var(--container-padding);
}

.category-tags {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 8px var(--container-padding);
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.tag-item {
  display: inline-block;
  padding: 8px 18px;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-primary);
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: 20px;
  transition: all var(--transition-base);
}

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

.category-nav .text-link {
  max-width: var(--container-width);
  margin: 16px auto 0;
  padding: 0 var(--container-padding);
  display: block;
}

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

.recent-updates .section-title,
.recent-updates .section-desc {
  max-width: var(--container-width);
  margin-left: auto;
  margin-right: auto;
  padding: 0 var(--container-padding);
}

.update-group {
  max-width: var(--container-width);
  margin: 0 auto 24px;
  padding: 0 var(--container-padding);
}

.update-date {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--color-primary);
  display: inline-block;
}

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

.update-item {
  display: flex;
  gap: 14px;
  background: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 12px;
  align-items: flex-start;
  min-width: 0;
}

.update-item img {
  width: 72px;
  height: 96px;
  object-fit: cover;
  border-radius: var(--radius-sm);
  flex-shrink: 0;
}

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

.update-name {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 4px;
  line-height: 1.4;
}

.update-chapter {
  display: block;
  font-size: 13px;
  color: var(--color-text-secondary);
  margin-bottom: 6px;
}

.recent-updates .text-link {
  max-width: var(--container-width);
  margin: 8px auto 0;
  padding: 0 var(--container-padding);
  display: block;
}

/* 人气榜单预览 */
.popular-rank {
  padding: 40px 0;
  background: var(--color-white);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.popular-rank .section-title,
.popular-rank .section-desc {
  max-width: var(--container-width);
  margin-left: auto;
  margin-right: auto;
  padding: 0 var(--container-padding);
}

.rank-list {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
}

.rank-item {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 16px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 8px;
  min-width: 0;
}

.rank-item img {
  width: 80px;
  height: 106px;
  object-fit: cover;
  border-radius: var(--radius-sm);
}

.rank-number {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-accent);
  line-height: 1;
}

.rank-name {
  font-size: 14px;
  font-weight: 600;
  line-height: 1.4;
}

.rank-reason {
  font-size: 13px;
  color: var(--color-text-secondary);
  line-height: 1.5;
  margin: 0;
}

.popular-rank .text-link {
  max-width: var(--container-width);
  margin: 20px auto 0;
  padding: 0 var(--container-padding);
  display: block;
}

/* 阅读指南入口 */
.guide-entry {
  padding: 48px 0;
}

.guide-entry .section-title,
.guide-entry .section-desc {
  max-width: var(--container-width);
  margin-left: auto;
  margin-right: auto;
  padding: 0 var(--container-padding);
}

.guide-cards {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

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

.guide-card:hover {
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
}

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

.guide-card p {
  font-size: 14px;
  color: var(--color-text-secondary);
  margin-bottom: 12px;
}

/* 版权与反馈 */
.feedback-note {
  padding: 40px 0;
  background: var(--color-white);
  border-top: 1px solid var(--color-border);
}

.feedback-note .section-title,
.feedback-note p {
  max-width: var(--container-width);
  margin-left: auto;
  margin-right: auto;
  padding: 0 var(--container-padding);
}

.feedback-note p {
  font-size: 14px;
  color: var(--color-text-secondary);
  margin-bottom: 8px;
}

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

.layout-shell {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 32px;
  align-items: start;
}

/* 左侧题材索引 */
.category-index {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 20px;
  position: sticky;
  top: calc(var(--header-height) + 24px);
}

.index-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--color-primary);
}

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

.index-list li a {
  display: block;
  padding: 8px 12px;
  font-size: 14px;
  color: var(--color-text-secondary);
  border-radius: var(--radius-sm);
  transition: all var(--transition-base);
}

.index-list li a:hover {
  color: var(--color-primary);
  background: rgba(30, 136, 229, 0.06);
}

/* 右侧题材详情 */
.category-detail {
  min-width: 0;
}

.genre-block {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 24px;
  margin-bottom: 24px;
  scroll-margin-top: calc(var(--header-height) + 24px);
}

.genre-title {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 8px;
  padding-left: 14px;
  border-left: 4px solid var(--color-primary);
}

.genre-desc {
  font-size: 14px;
  color: var(--color-text-secondary);
  margin-bottom: 16px;
  line-height: 1.7;
}

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

.work-card {
  display: flex;
  gap: 14px;
  padding: 12px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  min-width: 0;
}

.work-cover {
  width: 72px;
  height: 96px;
  object-fit: cover;
  border-radius: var(--radius-sm);
  flex-shrink: 0;
}

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

.work-intro {
  font-size: 13px;
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin: 0;
}

/* 分类页底部引导 */
.category-guide-links {
  margin-top: 8px;
  background: var(--color-white);
  border-radius: var(--radius-md);
  padding: 24px;
  border: 1px solid var(--color-border);
}

.guide-intro {
  font-size: 14px;
  color: var(--color-text-secondary);
  margin-bottom: 16px;
}

.guide-link-list {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}

.guide-link-list a {
  display: block;
  padding: 12px 16px;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-primary);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  text-align: center;
  transition: all var(--transition-base);
}

.guide-link-list a:hover {
  background: var(--color-primary);
  color: var(--color-white);
  border-color: var(--color-primary);
}

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

.guide-layout {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 32px;
  align-items: start;
}

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

.guide-section {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 28px;
  margin-bottom: 24px;
  scroll-margin-top: calc(var(--header-height) + 24px);
}

.guide-heading {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--color-primary);
}

.guide-section p {
  font-size: 15px;
  color: var(--color-text-secondary);
  line-height: 1.8;
  margin-bottom: 12px;
}

.guide-section a {
  font-weight: 500;
}

.guide-figure {
  margin: 20px 0;
}

.guide-figure img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-radius: var(--radius-md);
}

.guide-figure figcaption {
  font-size: 13px;
  color: var(--color-text-light);
  text-align: center;
  padding: 8px 0 0;
}

/* 指南侧栏 */
.guide-aside {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 20px;
  position: sticky;
  top: calc(var(--header-height) + 24px);
}

.aside-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 14px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--color-primary);
}

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

.aside-list li a {
  display: block;
  padding: 8px 12px;
  font-size: 14px;
  color: var(--color-text-secondary);
  border-radius: var(--radius-sm);
}

.aside-list li a:hover {
  color: var(--color-primary);
  background: rgba(30, 136, 229, 0.06);
}

.aside-note {
  font-size: 13px;
  color: var(--color-text-light);
  line-height: 1.6;
  margin-top: 16px;
  padding-top: 12px;
  border-top: 1px solid var(--color-border);
}

/* 反馈块 */
.feedback-block {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 24px;
  margin-top: 24px;
}

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

.feedback-block p {
  font-size: 14px;
  color: var(--color-text-secondary);
  margin: 0;
}

/* ==========================================================================
   Pages —— 追更技巧页
   ========================================================================== */

.content-media {
  margin: 20px 0;
}

.content-media-inline {
  max-width: 720px;
}

.content-media img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  border-radius: var(--radius-md);
}

.content-media figcaption {
  font-size: 13px;
  color: var(--color-text-light);
  text-align: center;
  padding: 8px 0 0;
}

.tracking-content {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 28px;
  margin-bottom: 24px;
}

.tracking-content h2 {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-text);
  margin: 24px 0 12px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--color-primary);
}

.tracking-content h2:first-child {
  margin-top: 0;
}

.tracking-content p {
  font-size: 15px;
  color: var(--color-text-secondary);
  line-height: 1.8;
  margin-bottom: 12px;
}

/* 追更计划 */
.tracking-plan {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 28px;
  margin-bottom: 24px;
}

.tracking-plan h2 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 20px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--color-primary);
}

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

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

.plan-step h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 10px;
}

.plan-step p {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin: 0;
}

/* 相关链接 */
.related-links {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 24px;
}

.related-links h2 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 16px;
  color: var(--color-text);
}

.link-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-bottom: 16px;
}

.link-list li a {
  display: block;
  padding: 10px 14px;
  font-size: 14px;
  color: var(--color-primary);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  text-align: center;
  transition: all var(--transition-base);
}

.link-list li a:hover {
  background: var(--color-primary);
  color: var(--color-white);
  border-color: var(--color-primary);
}

.feedback-note {
  font-size: 13px;
  color: var(--color-text-light);
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--color-border);
}

/* ==========================================================================
   Pages —— 人气榜单页
   ========================================================================== */

/* 筛选标签 */
.rank-filter {
  margin-bottom: 28px;
}

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

.filter-tag {
  display: inline-block;
  padding: 8px 18px;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text-secondary);
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: 20px;
  transition: all var(--transition-base);
}

.filter-tag:hover {
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.filter-tag.is-active {
  color: var(--color-white);
  background: var(--color-primary);
  border-color: var(--color-primary);
}

/* 榜单列表 */
.rank-list-section {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 28px;
  margin-bottom: 24px;
}

.rank-list-section .rank-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  padding: 0;
  margin: 0;
}

.rank-list-section .rank-item {
  display: grid;
  grid-template-columns: 48px 72px 1fr;
  gap: 16px;
  align-items: center;
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--color-border);
  border-radius: 0;
  padding: 16px 8px;
  flex-direction: row;
  text-align: left;
}

.rank-list-section .rank-item:last-child {
  border-bottom: none;
}

.rank-list-section .rank-item:hover {
  background: var(--color-bg);
}

.rank-list-section .rank-number {
  font-size: 24px;
  font-weight: 700;
  color: var(--color-accent);
  width: 48px;
  text-align: center;
}

.rank-list-section .rank-cover img {
  width: 72px;
  height: 96px;
  object-fit: cover;
  border-radius: var(--radius-sm);
}

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

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

.rank-tag {
  display: inline-block;
  font-size: 12px;
  color: var(--color-primary);
  background: rgba(30, 136, 229, 0.08);
  border-radius: var(--radius-sm);
  padding: 2px 8px;
  margin-bottom: 6px;
}

.rank-reason {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin: 0;
}

.rank-note {
  font-size: 13px;
  color: var(--color-text-light);
  margin-top: 16px;
  padding-top: 12px;
  border-top: 1px solid var(--color-border);
}

.rank-note a {
  font-weight: 500;
}

/* 编辑推荐 */
.editor-picks {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 28px;
  margin-bottom: 24px;
}

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

.editor-card {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: box-shadow var(--transition-base);
  min-width: 0;
}

.editor-card:hover {
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
}

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

.editor-body {
  padding: 16px;
}

.editor-title {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 4px;
}

.editor-tag {
  display: inline-block;
  font-size: 12px;
  color: var(--color-accent-dark);
  background: rgba(255, 179, 0, 0.12);
  border-radius: var(--radius-sm);
  padding: 2px 8px;
  margin-bottom: 8px;
}

.editor-comment {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin: 0;
}

.editor-note {
  font-size: 13px;
  color: var(--color-text-light);
  margin-top: 16px;
  padding-top: 12px;
  border-top: 1px solid var(--color-border);
}

.editor-note a {
  font-weight: 500;
}

/* 榜单使用指南 */
.rank-guide {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 28px;
  margin-bottom: 24px;
}

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

.guide-list li {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.7;
  padding: 12px 16px;
  background: var(--color-bg);
  border-radius: var(--radius-sm);
  border-left: 3px solid var(--color-primary);
}

.guide-more {
  font-size: 14px;
  margin: 0;
}

.guide-more a {
  font-weight: 500;
}

/* ==========================================================================
   Pages —— 最近更新页
   ========================================================================== */

.update-overview {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 32px;
  align-items: center;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 24px;
  margin-bottom: 28px;
}

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

.overview-figure img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  border-radius: var(--radius-md);
}

.overview-figure figcaption {
  font-size: 13px;
  color: var(--color-text-light);
  text-align: center;
  padding: 8px 0 0;
}

.overview-note h2 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--color-text);
}

.overview-note p {
  font-size: 15px;
  color: var(--color-text-secondary);
  line-height: 1.8;
  margin-bottom: 12px;
}

.overview-note a {
  font-weight: 500;
}

/* 更新列表 */
.update-list-wrap {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 28px;
  margin-bottom: 24px;
}

.update-list-wrap > h2 {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--color-text);
}

.update-group {
  margin-top: 24px;
}

.update-group h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 14px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--color-primary);
  display: inline-block;
}

.update-items {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
}

.update-item {
  display: grid;
  grid-template-columns: 80px 1fr auto;
  gap: 16px;
  align-items: center;
  padding: 14px 8px;
  border-bottom: 1px solid var(--color-border);
  min-width: 0;
}

.update-item:last-child {
  border-bottom: none;
}

.update-cover img {
  width: 80px;
  height: 106px;
  object-fit: cover;
  border-radius: var(--radius-sm);
}

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

.update-info h4 {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 4px;
}

.update-meta {
  font-size: 13px;
  color: var(--color-text-secondary);
  margin-bottom: 4px;
}

.update-desc {
  font-size: 13px;
  color: var(--color-text-light);
  line-height: 1.5;
  margin: 0;
}

.update-status {
  white-space: nowrap;
}

/* 更新状态说明 */
.update-status-guide {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 24px;
  margin-bottom: 24px;
}

.update-status-guide h2 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 8px;
}

.update-status-guide p {
  font-size: 14px;
  color: var(--color-text-secondary);
  margin-bottom: 12px;
}

.status-legend {
  display: flex;
  gap: 24px;
  margin-bottom: 12px;
}

.status-legend li {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
}

.status-dot {
  display: inline-block;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--color-updating);
}

.status-dot.status-finished {
  background: var(--color-finished);
}

.status-legend strong {
  font-weight: 500;
  color: var(--color-text);
}

.update-status-guide p:last-child a {
  font-weight: 500;
}

/* 相关链接 */
.related-list {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}

.related-list li a {
  display: block;
  padding: 10px 14px;
  font-size: 14px;
  color: var(--color-primary);
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  text-align: center;
  transition: all var(--transition-base);
}

.related-list li a:hover {
  background: var(--color-primary);
  color: var(--color-white);
  border-color: var(--color-primary);
}

/* ==========================================================================
   Pages —— 404
   ========================================================================== */

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

.error-section {
  text-align: center;
  max-width: 480px;
}

.error-title {
  font-size: 48px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 16px;
}

.error-desc {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 8px;
}

.error-advice {
  font-size: 14px;
  color: var(--color-text-secondary);
  margin-bottom: 24px;
}

.error-back {
  display: inline-block;
  padding: 10px 28px;
  font-size: 15px;
  font-weight: 600;
  color: var(--color-white);
  background: var(--color-primary);
  border-radius: var(--radius-md);
  transition: background var(--transition-base);
}

.error-back:hover {
  background: var(--color-primary-dark);
  color: var(--color-white);
}

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

@media (min-width: 769px) {
  .brand-slogan {
    display: inline;
  }
}

@media (max-width: 992px) {
  .hero-layout {
    grid-template-columns: 1fr;
    gap: 24px;
  }

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

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

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

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

  .guide-aside {
    position: static;
    margin-top: 8px;
  }

  .layout-shell {
    grid-template-columns: 1fr;
  }

  .category-index {
    position: static;
    margin-bottom: 8px;
  }

  .index-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
  }

  .index-list li {
    margin: 0;
  }

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

  .update-overview {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .plan-steps {
    grid-template-columns: 1fr;
  }

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

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

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

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

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

@media (max-width: 768px) {
  .header-inner {
    height: auto;
    min-height: var(--header-height);
    padding: 8px var(--container-padding);
    flex-wrap: wrap;
  }

  .nav-toggle {
    display: flex;
    margin-left: auto;
  }

  .site-nav {
    width: 100%;
  }

  .site-nav .nav-list {
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 8px 0 12px;
    border-top: 1px solid var(--color-border);
    margin-top: 8px;
  }

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

  .nav-list li a {
    padding: 12px 8px;
    font-size: 15px;
    border-radius: var(--radius-sm);
  }

  .nav-toggle[aria-expanded="true"] .nav-toggle-line:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }

  .nav-toggle[aria-expanded="true"] .nav-toggle-line:nth-child(2) {
    opacity: 0;
  }

  .nav-toggle[aria-expanded="true"] .nav-toggle-line:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }

  .inner-main {
    padding: 20px var(--container-padding) 40px;
  }

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

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

  .hero-update {
    padding: 28px 0;
  }

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

  .hero-coverwall {
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
  }

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

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

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

  .rank-item {
    padding: 12px;
  }

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

  .guide-card {
    padding: 20px;
  }

  .genre-block,
  .tracking-content,
  .tracking-plan,
  .rank-list-section,
  .editor-picks,
  .rank-guide,
  .update-list-wrap,
  .update-status-guide,
  .related-links,
  .guide-section {
    padding: 20px;
  }

  .rank-list-section .rank-item {
    grid-template-columns: 40px 64px 1fr;
    gap: 12px;
    padding: 12px 4px;
  }

  .rank-list-section .rank-number {
    font-size: 20px;
    width: 40px;
  }

  .rank-list-section .rank-cover img {
    width: 64px;
    height: 88px;
  }

  .editor-picks-grid {
    grid-template-columns: 1fr;
  }

  .update-item {
    grid-template-columns: 64px 1fr;
    gap: 12px;
  }

  .update-cover img {
    width: 64px;
    height: 88px;
  }

  .update-status {
    grid-column: 2;
    justify-self: start;
    margin-top: -8px;
  }

  .status-legend {
    flex-direction: column;
    gap: 8px;
  }

  .filter-tags {
    gap: 8px;
  }

  .filter-tag {
    padding: 6px 14px;
    font-size: 13px;
  }

  .error-main {
    padding: 48px var(--container-padding);
  }

  .error-title {
    font-size: 36px;
  }
}

@media (max-width: 480px) {
  :root {
    --container-padding: 16px;
  }

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

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

  .hero-coverwall .cover-card:last-child {
    display: none;
  }

  .category-tags {
    gap: 8px;
  }

  .tag-item {
    padding: 6px 14px;
    font-size: 13px;
  }

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

  .rank-item {
    flex-direction: row;
    align-items: center;
    text-align: left;
    gap: 12px;
  }

  .rank-item img {
    flex-shrink: 0;
  }

  .rank-number {
    min-width: 24px;
  }

  .rank-name {
    flex: 1;
  }

  .rank-reason {
    flex-basis: 100%;
  }

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

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

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

  .update-cover img {
    width: 100%;
    height: 140px;
  }

  .update-status {
    grid-column: auto;
    justify-self: start;
    margin-top: 0;
  }

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

  .rank-list-section .rank-item {
    grid-template-columns: 36px 56px 1fr;
    gap: 10px;
  }

  .rank-list-section .rank-cover img {
    width: 56px;
    height: 76px;
  }

  .content-media img {
    height: 160px;
  }

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