/* ==========================================================================
   漫蛙 Manwa 漫画 - 全站样式表
   视觉方向：儿童教育风 · 暖米色背景 · 珊瑚橙主色 · 圆润卡片
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Base —— 变量、重置、全局基础
   -------------------------------------------------------------------------- */
:root {
  --color-bg: #FBF7EE;
  --color-primary: #FF7A59;
  --color-primary-dark: #E85D3D;
  --color-ink: #2B3A4A;
  --color-green: #7FB800;
  --color-yellow: #FFD166;
  --color-text: #333B45;
  --color-border: #E6DED3;
  --color-white: #FFFFFF;
  --color-muted: #6B7280;

  --font-sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;

  --shadow-sm: 0 1px 3px rgba(43, 58, 74, 0.08);
  --shadow-md: 0 4px 12px rgba(43, 58, 74, 0.10);
  --shadow-lg: 0 8px 24px rgba(43, 58, 74, 0.12);

  --container-width: 1140px;
  --header-height: 64px;
  --space-section: 56px;
}

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

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

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-ink);
  text-decoration: none;
  transition: color 0.2s ease;
}

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

ul,
ol {
  list-style: none;
}

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

/* 焦点可见性 */
a:focus-visible,
button:focus-visible,
summary:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

/* --------------------------------------------------------------------------
   2. Layout —— 全站骨架：页头、页脚、主容器、面包屑、页面标题
   -------------------------------------------------------------------------- */

/* 页头 */
.site-header {
  background-color: 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 20px;
  height: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.logo-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background-color: var(--color-primary);
  color: var(--color-white);
  border-radius: 50%;
  font-size: 20px;
  font-weight: 700;
  line-height: 1;
}

/* 导航 */
.site-nav {
  display: block;
}

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

.nav-list li a {
  display: block;
  padding: 8px 14px;
  font-weight: 500;
  font-size: 15px;
  color: var(--color-ink);
  border-radius: var(--radius-md);
  position: relative;
  transition: background-color 0.2s ease, color 0.2s ease;
}

.nav-list li a:hover {
  color: var(--color-primary);
  background-color: rgba(255, 122, 89, 0.08);
}

.nav-list li a.is-current {
  color: var(--color-primary);
  background-color: rgba(255, 122, 89, 0.10);
  font-weight: 600;
}

/* 汉堡按钮（默认隐藏） */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 10px;
  border-radius: var(--radius-md);
}

.nav-toggle-bar {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--color-ink);
  border-radius: 2px;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

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

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

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

/* 主容器 */
.site-main {
  min-height: 60vh;
}

.home-main {
  padding-bottom: var(--space-section);
}

.inner-main {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 24px 20px 64px;
}

/* 面包屑 */
.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 14px;
  color: var(--color-muted);
  margin-bottom: 20px;
}

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

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

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

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

/* 页面标题区 */
.page-header {
  margin-bottom: 32px;
  padding-bottom: 20px;
  border-bottom: 2px solid var(--color-border);
}

.page-title {
  font-size: 32px;
  font-weight: 700;
  color: var(--color-ink);
  line-height: 1.3;
  margin-bottom: 8px;
}

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

/* 页脚 */
.site-footer {
  background-color: var(--color-ink);
  color: rgba(255, 255, 255, 0.85);
  padding: 48px 0 0;
  margin-top: 40px;
}

.footer-inner {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 20px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.footer-group h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-white);
  margin-bottom: 16px;
}

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

.footer-links li a {
  color: rgba(255, 255, 255, 0.75);
  font-size: 14px;
  line-height: 1.6;
}

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

.footer-desc {
  font-size: 14px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.65);
}

.footer-bottom {
  margin-top: 40px;
  padding: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  text-align: center;
}

.footer-bottom p {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.55);
}

/* --------------------------------------------------------------------------
   3. Components —— 通用组件
   -------------------------------------------------------------------------- */

/* 按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 22px;
  border-radius: var(--radius-md);
  font-size: 15px;
  font-weight: 500;
  line-height: 1.5;
  transition: background-color 0.2s ease, color 0.2s ease, box-shadow 0.2s ease;
  min-height: 44px;
}

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

.btn-primary:hover {
  background-color: var(--color-primary-dark);
  color: var(--color-white);
  box-shadow: var(--shadow-md);
}

.btn-outline {
  background-color: transparent;
  color: var(--color-ink);
  border: 2px solid var(--color-border);
}

.btn-outline:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background-color: rgba(255, 122, 89, 0.05);
}

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

.btn-secondary:hover {
  background-color: #6DA300;
  color: var(--color-white);
  box-shadow: var(--shadow-md);
}

/* 区块通用 */
.section-head {
  margin-bottom: 24px;
}

.section-title {
  font-size: 24px;
  font-weight: 700;
  color: var(--color-ink);
  line-height: 1.4;
  margin-bottom: 8px;
}

.section-desc {
  font-size: 15px;
  color: var(--color-muted);
  line-height: 1.6;
}

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

.section-more a {
  display: inline-block;
  padding: 8px 20px;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-primary);
  border: 1px solid var(--color-primary);
  border-radius: var(--radius-md);
  transition: background-color 0.2s ease, color 0.2s ease;
}

.section-more a:hover {
  background-color: var(--color-primary);
  color: var(--color-white);
}

/* 标签 */
.badge {
  display: inline-block;
  padding: 3px 10px;
  font-size: 12px;
  font-weight: 500;
  border-radius: 999px;
  background-color: rgba(255, 122, 89, 0.12);
  color: var(--color-primary);
}

.tag {
  display: inline-block;
  padding: 3px 10px;
  font-size: 12px;
  font-weight: 500;
  border-radius: 999px;
  background-color: rgba(127, 184, 0, 0.12);
  color: #5C8A00;
}

.tag-hot {
  background-color: rgba(255, 122, 89, 0.15);
  color: var(--color-primary-dark);
}

.tag-love {
  background-color: rgba(255, 209, 102, 0.25);
  color: #B07D00;
}

.tag-mystery {
  background-color: rgba(43, 58, 74, 0.08);
  color: var(--color-ink);
}

.tag-fantasy {
  background-color: rgba(127, 184, 0, 0.12);
  color: #5C8A00;
}

.tag-scifi {
  background-color: rgba(255, 122, 89, 0.10);
  color: var(--color-primary-dark);
}

.tag-daily {
  background-color: rgba(255, 209, 102, 0.20);
  color: #B07D00;
}

/* 文本链接 */
.text-link {
  display: inline-block;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-primary);
}

.text-link:hover {
  color: var(--color-primary-dark);
  text-decoration: underline;
}

/* 标签列表 */
.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tag-list li a {
  display: inline-block;
  padding: 6px 14px;
  font-size: 13px;
  font-weight: 500;
  color: var(--color-ink);
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: 999px;
  transition: border-color 0.2s ease, color 0.2s ease, background-color 0.2s ease;
}

.tag-list li a:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background-color: rgba(255, 122, 89, 0.05);
}

/* 封面图容器 */
.hero-figure,
.card-media,
.update-media,
.ranking-cover,
.ranking-thumb,
.step-media,
.gallery-item,
.example-figure {
  overflow: hidden;
  background-color: var(--color-border);
}

.hero-figure img,
.card-media img,
.update-media img,
.ranking-cover img,
.ranking-thumb img,
.step-media img,
.gallery-item img,
.example-figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* --------------------------------------------------------------------------
   4. Pages —— 首页
   -------------------------------------------------------------------------- */

/* Hero 区 */
.home-hero {
  background-color: var(--color-white);
  border-bottom: 1px solid var(--color-border);
  padding: 56px 0;
}

.hero-content {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 20px;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
}

.hero-title {
  font-size: 38px;
  font-weight: 700;
  color: var(--color-ink);
  line-height: 1.3;
  margin-bottom: 16px;
}

.hero-title span {
  color: var(--color-primary);
}

.hero-desc {
  font-size: 16px;
  color: var(--color-muted);
  line-height: 1.7;
  margin-bottom: 28px;
  max-width: 520px;
}

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

.hero-figure {
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}

.hero-figure img {
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
}

/* 首页通用区块 */
.home-section {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 48px 20px 0;
}

/* 题材分类导航 */
.category-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.category-card {
  display: block;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 20px;
  text-align: center;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

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

.category-card img {
  width: 100%;
  height: 120px;
  object-fit: cover;
  border-radius: var(--radius-md);
  margin-bottom: 12px;
}

.category-name {
  font-size: 17px;
  font-weight: 600;
  color: var(--color-ink);
  margin-bottom: 6px;
}

.category-brief {
  font-size: 13px;
  color: var(--color-muted);
  line-height: 1.5;
}

/* 最近更新预览 */
.update-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.update-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  display: flex;
  flex-direction: column;
}

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

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

.update-card .badge-tag {
  display: inline-block;
  margin: 12px 12px 0;
  align-self: flex-start;
}

.update-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-ink);
  margin: 8px 12px 4px;
  line-height: 1.4;
}

.update-note {
  font-size: 13px;
  color: var(--color-muted);
  margin: 0 12px 8px;
  line-height: 1.5;
  flex: 1;
}

.update-time {
  display: block;
  font-size: 12px;
  color: var(--color-muted);
  padding: 8px 12px;
  border-top: 1px solid var(--color-border);
}

/* 人气榜单预览 */
.ranking-preview {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.ranking-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 20px;
  border-bottom: 1px solid var(--color-border);
}

.ranking-row:last-child {
  border-bottom: none;
}

.ranking-name {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-ink);
  flex-shrink: 0;
}

.ranking-tags {
  flex: 1;
  text-align: center;
  font-size: 14px;
  color: var(--color-muted);
}

.ranking-row a {
  font-size: 14px;
  font-weight: 500;
  color: var(--color-primary);
  flex-shrink: 0;
}

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

/* 阅读指南四步 */
.guide-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.guide-step {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px 20px;
  text-align: center;
  position: relative;
}

.step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background-color: var(--color-primary);
  color: var(--color-white);
  border-radius: 50%;
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 12px;
}

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

.step-desc {
  font-size: 14px;
  color: var(--color-muted);
  line-height: 1.6;
}

/* 帮助入口 */
.help-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.help-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 28px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 12px;
}

.help-card-title {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-ink);
}

.help-card-desc {
  font-size: 14px;
  color: var(--color-muted);
  line-height: 1.6;
  flex: 1;
}

/* --------------------------------------------------------------------------
   5. Pages —— 题材分类页 mw/fenlei.html
   -------------------------------------------------------------------------- */

.page-layout {
  display: grid;
  gap: 32px;
}

.sidebar-left {
  grid-template-columns: 260px 1fr;
  align-items: start;
}

/* 侧栏 */
.category-index {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  position: sticky;
  top: calc(var(--header-height) + 20px);
}

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

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

.index-list li a {
  display: block;
  padding: 8px 12px;
  font-size: 14px;
  color: var(--color-ink);
  border-radius: var(--radius-md);
  transition: background-color 0.2s ease, color 0.2s ease;
}

.index-list li a:hover {
  background-color: rgba(255, 122, 89, 0.08);
  color: var(--color-primary);
}

.aside-links {
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--color-border);
}

.aside-subtitle {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-ink);
  margin-bottom: 10px;
}

.aside-links p {
  font-size: 13px;
  color: var(--color-muted);
  margin-bottom: 8px;
  line-height: 1.6;
}

.aside-links p a {
  color: var(--color-primary);
  font-weight: 500;
}

.aside-links p a:hover {
  color: var(--color-primary-dark);
}

/* 分类网格 */
.category-content {
  min-width: 0;
}

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

.category-grid .section-title {
  grid-column: 1 / -1;
  margin-bottom: 12px;
}

.category-card {
  display: flex;
  flex-direction: column;
  text-align: left;
  padding: 0;
  overflow: hidden;
}

.category-card .card-media {
  width: 100%;
  height: 140px;
}

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

.card-body {
  flex: 1;
  padding: 16px 20px 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.card-title {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-ink);
}

.card-desc {
  font-size: 14px;
  color: var(--color-muted);
  line-height: 1.6;
}

.card-audience {
  font-size: 13px;
  color: var(--color-muted);
  line-height: 1.5;
}

.card-link {
  display: inline-block;
  margin-top: auto;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-primary);
  padding-top: 8px;
}

.card-link:hover {
  color: var(--color-primary-dark);
}

/* 阅读建议 */
.reading-tips {
  margin-top: 40px;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 28px;
}

.tips-intro {
  font-size: 15px;
  color: var(--color-muted);
  margin-bottom: 20px;
  line-height: 1.7;
}

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

.tips-list li {
  display: flex;
  gap: 8px;
  font-size: 14px;
  color: var(--color-text);
  line-height: 1.6;
  padding: 8px 12px;
  background-color: var(--color-bg);
  border-radius: var(--radius-md);
}

.tips-list li strong {
  color: var(--color-primary);
  flex-shrink: 0;
}

/* 榜单联动 */
.rank-links {
  margin-top: 40px;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 28px;
}

.rank-desc {
  font-size: 14px;
  color: var(--color-muted);
  margin-bottom: 16px;
  line-height: 1.6;
}

.rank-link-item {
  margin-bottom: 12px;
}

.rank-link-item a {
  display: inline-block;
  padding: 8px 16px;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-white);
  background-color: var(--color-primary);
  border-radius: var(--radius-md);
}

.rank-link-item a:hover {
  background-color: var(--color-primary-dark);
  color: var(--color-white);
}

.rank-more {
  font-size: 14px;
  color: var(--color-muted);
}

.rank-more a {
  color: var(--color-primary);
  font-weight: 500;
}

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

/* --------------------------------------------------------------------------
   6. Pages —— 更新动态页 mw/gengxin.html
   -------------------------------------------------------------------------- */

.layout-with-aside {
  grid-template-columns: 1fr 320px;
  align-items: start;
}

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

/* 时间线 */
.updates-timeline {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 28px;
}

.updates-timeline h2 {
  font-size: 24px;
  font-weight: 700;
  color: var(--color-ink);
  margin-bottom: 8px;
}

.section-intro {
  font-size: 14px;
  color: var(--color-muted);
  margin-bottom: 24px;
  line-height: 1.6;
}

.update-item {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 16px;
  padding: 20px 0;
  border-bottom: 1px solid var(--color-border);
  align-items: start;
}

.update-item:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.update-media {
  border-radius: var(--radius-md);
}

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

.update-info h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-ink);
  margin-bottom: 6px;
}

.update-info .tag {
  display: inline-block;
  margin-bottom: 6px;
}

.update-desc {
  font-size: 14px;
  color: var(--color-muted);
  line-height: 1.6;
  margin-bottom: 6px;
}

.update-time {
  font-size: 12px;
  color: var(--color-muted);
}

/* 侧栏 */
.content-aside {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.aside-block {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
}

.aside-block h2 {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-ink);
  margin-bottom: 12px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--color-border);
}

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

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

.distribution-block .tag-list {
  margin-bottom: 12px;
}

.aside-note {
  font-size: 13px;
  color: var(--color-muted);
  line-height: 1.6;
}

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

.aside-links li a {
  display: block;
  font-size: 14px;
  color: var(--color-ink);
  padding: 6px 0;
  transition: color 0.2s ease;
}

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

/* --------------------------------------------------------------------------
   7. Pages —— 人气榜单页 mw/bangdan.html
   -------------------------------------------------------------------------- */

.ranking-section {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 28px;
  margin-bottom: 24px;
}

/* 前三名大卡 */
.ranking-main {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 24px;
}

.ranking-card {
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.ranking-top .ranking-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background-color: var(--color-primary);
  color: var(--color-white);
  border-radius: 50%;
  font-size: 18px;
  font-weight: 700;
}

.ranking-cover {
  width: 100%;
  height: 140px;
  border-radius: var(--radius-md);
}

.ranking-info h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-ink);
  margin-bottom: 4px;
}

.ranking-trend {
  font-size: 13px;
  color: var(--color-green);
  margin-bottom: 6px;
}

.ranking-note {
  font-size: 13px;
  color: var(--color-muted);
  line-height: 1.5;
  margin-bottom: 8px;
}

.ranking-link {
  display: inline-block;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-primary);
}

.ranking-link:hover {
  color: var(--color-primary-dark);
}

/* 4-8 名列表 */
.ranking-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.ranking-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

.ranking-row .ranking-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-ink);
  background-color: var(--color-yellow);
  border-radius: 50%;
  flex-shrink: 0;
}

.ranking-thumb {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  flex-shrink: 0;
}

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

.ranking-row-info h3 {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-ink);
  line-height: 1.4;
}

.ranking-row-info .ranking-trend {
  font-size: 12px;
  margin-bottom: 0;
}

.ranking-row .ranking-link {
  flex-shrink: 0;
  font-size: 13px;
}

/* 子榜单 */
.ranking-sub-section {
  margin-bottom: 24px;
}

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

.ranking-sub-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
}

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

.sub-card-desc {
  font-size: 14px;
  color: var(--color-muted);
  margin-bottom: 16px;
  line-height: 1.6;
}

.ranking-sub-card .tag-list {
  margin-bottom: 16px;
}

.sub-card-link {
  display: inline-block;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-primary);
}

.sub-card-link:hover {
  color: var(--color-primary-dark);
}

/* 规则说明 */
.ranking-notes {
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
}

.ranking-notes .section-title {
  font-size: 18px;
  margin-bottom: 12px;
}

.ranking-notes p {
  font-size: 14px;
  color: var(--color-muted);
  line-height: 1.7;
  margin-bottom: 8px;
}

.ranking-notes p:last-child {
  margin-bottom: 0;
}

/* --------------------------------------------------------------------------
   8. Pages —— 阅读指南页 mw/yuedu.html
   -------------------------------------------------------------------------- */

.guide-steps {
  display: flex;
  flex-direction: column;
  gap: 24px;
  margin-bottom: 40px;
}

.guide-steps .section-title {
  margin-bottom: 16px;
}

.steps-grid {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.step-item {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  align-items: center;
}

.step-media {
  border-radius: var(--radius-md);
}

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

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

.step-number {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-primary);
  background-color: rgba(255, 122, 89, 0.10);
  padding: 4px 12px;
  border-radius: 999px;
  margin-bottom: 10px;
}

.step-content h3 {
  font-size: 20px;
  font-weight: 600;
  color: var(--color-ink);
  margin-bottom: 10px;
  line-height: 1.4;
}

.step-content p {
  font-size: 14px;
  color: var(--color-muted);
  line-height: 1.7;
  margin-bottom: 12px;
}

.step-content .text-link {
  margin-top: 4px;
}

/* 栏目说明 */
.column-guide {
  margin-bottom: 40px;
}

.column-guide .section-title {
  margin-bottom: 16px;
}

.column-list {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.column-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 20px;
}

.column-card h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-ink);
  margin-bottom: 8px;
}

.column-card p {
  font-size: 13px;
  color: var(--color-muted);
  line-height: 1.6;
  margin-bottom: 10px;
}

/* 建议列表 */
.guide-tips .section-title {
  margin-bottom: 16px;
}

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

.tips-block {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
}

.tips-block h3 {
  font-size: 17px;
  font-weight: 600;
  color: var(--color-ink);
  margin-bottom: 14px;
}

.tips-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.tips-list li {
  display: flex;
  gap: 8px;
  font-size: 14px;
  color: var(--color-text);
  line-height: 1.6;
}

.tips-list li span {
  color: var(--color-primary);
  font-weight: 700;
  flex-shrink: 0;
}

/* --------------------------------------------------------------------------
   9. Pages —— 常见问题页 mw/changjian.html
   -------------------------------------------------------------------------- */

/* 分类锚点 */
.faq-nav {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  margin-bottom: 24px;
}

.faq-nav .section-title {
  font-size: 18px;
  margin-bottom: 16px;
}

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

.faq-category-btn {
  display: inline-block;
  padding: 10px 20px;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-ink);
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: border-color 0.2s ease, color 0.2s ease, background-color 0.2s ease;
  min-height: 44px;
}

.faq-category-btn:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background-color: rgba(255, 122, 89, 0.05);
}

/* FAQ 列表 */
.faq-list {
  margin-bottom: 40px;
}

.faq-list .section-title {
  font-size: 20px;
  margin: 32px 0 16px;
  padding-top: 16px;
  border-top: 1px solid var(--color-border);
}

.faq-list .section-title:first-child {
  margin-top: 0;
  padding-top: 0;
  border-top: none;
}

.faq-group {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.faq-item {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 16px 20px;
  font-size: 15px;
  font-weight: 500;
  color: var(--color-ink);
  cursor: pointer;
  list-style: none;
}

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

.faq-item summary::after {
  content: '+';
  font-size: 20px;
  font-weight: 400;
  color: var(--color-primary);
  flex-shrink: 0;
  transition: transform 0.2s ease;
}

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

.faq-item summary:hover {
  color: var(--color-primary);
}

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

.faq-answer p {
  margin-bottom: 8px;
}

.faq-answer p:last-child {
  margin-bottom: 0;
}

.faq-answer a {
  color: var(--color-primary);
  font-weight: 500;
}

.faq-answer a:hover {
  color: var(--color-primary-dark);
  text-decoration: underline;
}

/* 热门题材图廊 */
.gallery {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 28px;
  margin-bottom: 40px;
}

.gallery .section-title {
  margin-bottom: 8px;
}

.gallery-intro {
  font-size: 14px;
  color: var(--color-muted);
  margin-bottom: 20px;
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.gallery-item {
  border-radius: var(--radius-md);
  position: relative;
  cursor: pointer;
}

.gallery-item img {
  width: 100%;
  height: 140px;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.gallery-item:hover img {
  transform: scale(1.03);
}

.gallery-item figcaption {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 24px 12px 10px;
  background: linear-gradient(to top, rgba(43, 58, 74, 0.85), transparent);
  color: var(--color-white);
  font-size: 13px;
  font-weight: 500;
}

/* 更多帮助 */
.faq-more-help {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 28px;
}

.faq-more-help .help-card {
  border: none;
  padding: 0;
  background: transparent;
}

.faq-more-help .section-title {
  font-size: 20px;
  margin-bottom: 8px;
}

.faq-more-help p {
  font-size: 14px;
  color: var(--color-muted);
  line-height: 1.7;
}

.faq-more-help p a {
  color: var(--color-primary);
  font-weight: 500;
}

.faq-more-help p a:hover {
  color: var(--color-primary-dark);
  text-decoration: underline;
}

/* --------------------------------------------------------------------------
   10. Pages —— 反馈说明页 mw/fankui.html
   -------------------------------------------------------------------------- */

.feedback-intro {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 28px;
  margin-bottom: 24px;
}

.feedback-intro .section-title {
  font-size: 20px;
  margin-bottom: 12px;
}

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

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

/* 问题类型卡片 */
.problem-types {
  margin-bottom: 40px;
}

.problem-types .section-title {
  margin-bottom: 16px;
}

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

.problem-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
}

.problem-card h3 {
  font-size: 17px;
  font-weight: 600;
  color: var(--color-ink);
  margin-bottom: 8px;
}

.problem-card > p {
  font-size: 14px;
  color: var(--color-muted);
  line-height: 1.6;
  margin-bottom: 12px;
}

.path-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-ink);
  margin-bottom: 8px;
}

.path-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.path-list li {
  font-size: 14px;
  color: var(--color-muted);
  line-height: 1.5;
}

.path-list li a {
  color: var(--color-primary);
  font-weight: 500;
}

.path-list li a:hover {
  color: var(--color-primary-dark);
  text-decoration: underline;
}

/* 信息准备清单 */
.prepare-info {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 28px;
  margin-bottom: 40px;
}

.prepare-info .section-title {
  margin-bottom: 16px;
}

.info-checklist {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 16px;
}

.info-checklist li {
  display: flex;
  gap: 10px;
  font-size: 14px;
  color: var(--color-text);
  line-height: 1.6;
  padding: 8px 12px;
  background-color: var(--color-bg);
  border-radius: var(--radius-md);
}

.info-checklist li::before {
  content: '✓';
  color: var(--color-green);
  font-weight: 700;
  flex-shrink: 0;
}

.info-note {
  font-size: 13px;
  color: var(--color-muted);
  line-height: 1.6;
}

/* 参考题材封面 */
.example-imgs {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 28px;
}

.example-imgs .section-title {
  margin-bottom: 8px;
}

.example-imgs .section-desc {
  margin-bottom: 20px;
}

.example-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.example-figure {
  border-radius: var(--radius-md);
  position: relative;
}

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

.example-figure figcaption {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 24px 12px 10px;
  background: linear-gradient(to top, rgba(43, 58, 74, 0.85), transparent);
  color: var(--color-white);
  font-size: 13px;
  font-weight: 500;
}

.example-tip {
  margin-top: 16px;
  font-size: 13px;
  color: var(--color-muted);
  line-height: 1.6;
}

/* --------------------------------------------------------------------------
   11. Pages —— 404 页面
   -------------------------------------------------------------------------- */

.error-main {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 80px 20px;
}

.error-panel {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 48px 32px;
  text-align: center;
  max-width: 560px;
  margin: 0 auto;
}

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

.error-title {
  font-size: 24px;
  font-weight: 600;
  color: var(--color-ink);
  margin-bottom: 12px;
}

.error-desc {
  font-size: 15px;
  color: var(--color-muted);
  line-height: 1.7;
  margin-bottom: 24px;
}

.error-actions {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 20px;
}

.error-tip {
  font-size: 13px;
  color: var(--color-muted);
}

/* --------------------------------------------------------------------------
   12. Responsive —— 响应式断点
   -------------------------------------------------------------------------- */

/* 平板 */
@media (max-width: 1024px) {
  .category-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

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

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

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

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

  .sidebar-left {
    grid-template-columns: 220px 1fr;
    gap: 20px;
  }

  .layout-with-aside {
    grid-template-columns: 1fr 280px;
    gap: 20px;
  }
}

/* 手机 */
@media (max-width: 768px) {
  :root {
    --space-section: 40px;
  }

  /* 页头 */
  .header-inner {
    height: 56px;
    padding: 0 16px;
  }

  .logo-mark {
    width: 32px;
    height: 32px;
    font-size: 16px;
  }

  .nav-toggle {
    display: flex;
  }

  .site-nav {
    position: absolute;
    top: 56px;
    left: 0;
    right: 0;
    background-color: var(--color-white);
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-md);
  }

  .nav-list {
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 8px 16px;
  }

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

  .nav-list li a {
    padding: 14px 12px;
    font-size: 15px;
    border-radius: var(--radius-md);
  }

  /* 主容器 */
  .inner-main {
    padding: 16px 16px 48px;
  }

  .page-header {
    margin-bottom: 20px;
  }

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

  .page-description {
    font-size: 14px;
  }

  /* 首页 Hero */
  .home-hero {
    padding: 32px 0;
  }

  .hero-content {
    grid-template-columns: 1fr;
    gap: 24px;
    padding: 0 16px;
  }

  .hero-title {
    font-size: 28px;
  }

  .hero-desc {
    font-size: 15px;
  }

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

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

  .home-section {
    padding: 32px 16px 0;
  }

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

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

  /* 更新 */
  .update-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

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

  /* 榜单预览 */
  .ranking-row {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
    padding: 14px 16px;
  }

  .ranking-tags {
    text-align: left;
  }

  /* 阅读指南 */
  .guide-steps {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  /* 帮助 */
  .help-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .help-card {
    padding: 20px;
  }

  /* 内页布局 */
  .page-layout,
  .sidebar-left,
  .layout-with-aside {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .category-index {
    position: static;
    padding: 16px;
  }

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

  .index-list li {
    margin-bottom: 0;
  }

  .index-list li a {
    padding: 6px 12px;
    font-size: 13px;
    background-color: var(--color-bg);
    border-radius: 999px;
  }

  .aside-links {
    margin-top: 12px;
    padding-top: 12px;
  }

  /* 分类网格 */
  .category-grid .section-title {
    grid-column: 1 / -1;
  }

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

  /* 阅读建议 */
  .tips-list {
    grid-template-columns: 1fr;
  }

  /* 更新页 */
  .update-item {
    grid-template-columns: 64px 1fr;
    gap: 12px;
    padding: 14px 0;
  }

  .update-media img {
    height: 80px;
  }

  .updates-timeline,
  .aside-block {
    padding: 16px;
  }

  /* 榜单页 */
  .ranking-main {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .ranking-top {
    flex-direction: row;
    align-items: center;
    gap: 16px;
  }

  .ranking-top .ranking-cover {
    width: 100px;
    height: 100px;
    flex-shrink: 0;
  }

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

  .ranking-row {
    flex-direction: row;
    flex-wrap: wrap;
    align-items: center;
  }

  .ranking-row .ranking-thumb {
    width: 40px;
    height: 40px;
  }

  .ranking-row .ranking-link {
    margin-left: auto;
  }

  .ranking-sub-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .ranking-section,
  .ranking-notes,
  .ranking-sub-card {
    padding: 16px;
  }

  /* 阅读指南页 */
  .step-item {
    grid-template-columns: 1fr;
    gap: 16px;
    padding: 16px;
  }

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

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

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

  .tips-block {
    padding: 16px;
  }

  /* 常见问题页 */
  .faq-nav {
    padding: 16px;
  }

  .faq-category-list {
    gap: 8px;
  }

  .faq-category-btn {
    padding: 8px 14px;
    font-size: 13px;
    min-height: 40px;
  }

  .faq-item summary {
    padding: 14px 16px;
    font-size: 14px;
  }

  .faq-answer {
    padding: 0 16px 14px;
    font-size: 13px;
  }

  .gallery,
  .faq-more-help {
    padding: 16px;
  }

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

  .gallery-item img,
  .example-figure img {
    height: 120px;
  }

  /* 反馈页 */
  .feedback-intro,
  .prepare-info,
  .example-imgs {
    padding: 16px;
  }

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

  .problem-card {
    padding: 16px;
  }

  .info-checklist li {
    font-size: 13px;
  }

  /* 页脚 */
  .footer-inner {
    grid-template-columns: 1fr;
    gap: 24px;
    padding: 0 16px;
  }

  .footer-bottom {
    margin-top: 24px;
    padding: 16px;
  }

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

  .error-panel {
    padding: 32px 20px;
  }

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

/* 小屏手机 */
@media (max-width: 390px) {
  .gallery-grid,
  .example-grid {
    grid-template-columns: 1fr;
  }

  .gallery-item img,
  .example-figure img {
    height: 140px;
  }

  .ranking-top {
    flex-direction: column;
    align-items: flex-start;
  }

  .ranking-top .ranking-cover {
    width: 100%;
    height: 140px;
  }
}