/* ==========================================================================
   香蕉漫画 · 全站样式表
   视觉方向：漫画书店风 —— 纸张白底、书脊深棕、香蕉黄强调、书架绿辅助
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Base —— 基础变量、重置、字体、色彩
   -------------------------------------------------------------------------- */
:root {
  --color-paper: #faf8f5;
  --color-spine: #3e2f2a;
  --color-banana: #f5c842;
  --color-shelf: #4a7c59;
  --color-ink: #2b2b2b;
  --color-update: #d94f43;
  --color-muted: #6b625c;
  --color-border: #e8e0d6;
  --color-card: #ffffff;
  --color-tag-bg: #f1ece4;

  --font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei",
    "Noto Sans CJK SC", "Source Han Sans SC", sans-serif;

  --container-width: 1200px;
  --container-pad: 24px;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 8px;

  --header-h: 64px;
  --transition: 0.2s ease;
}

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

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-ink);
  background-color: var(--color-paper);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

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

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

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

ul,
ol {
  list-style: none;
}

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

table {
  border-collapse: collapse;
  width: 100%;
}

/* --------------------------------------------------------------------------
   2. Layout —— 全站骨架：页头、主容器、页脚
   -------------------------------------------------------------------------- */

/* 全站统一主容器 */
.header-inner,
.site-main,
.footer-inner {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding-left: var(--container-pad);
  padding-right: var(--container-pad);
}

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

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: var(--header-h);
  gap: 16px;
}

.brand-link {
  display: flex;
  align-items: baseline;
  gap: 8px;
  flex-shrink: 0;
}

.brand-name {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-spine);
}

.brand-slogan {
  font-size: 12px;
  color: var(--color-muted);
}

/* ---------- 主导航 ---------- */
.site-nav {
  display: flex;
  align-items: center;
}

.nav-toggle {
  display: none;
  align-items: center;
  gap: 6px;
  padding: 8px 12px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-card);
  font-size: 14px;
  color: var(--color-spine);
  min-height: 44px;
}

.nav-toggle-icon {
  display: block;
  width: 16px;
  height: 2px;
  background: var(--color-spine);
  position: relative;
}

.nav-toggle-icon::before,
.nav-toggle-icon::after {
  content: "";
  position: absolute;
  left: 0;
  width: 16px;
  height: 2px;
  background: var(--color-spine);
}

.nav-toggle-icon::before {
  top: -5px;
}

.nav-toggle-icon::after {
  top: 5px;
}

.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-spine);
  border-radius: var(--radius-sm);
  min-height: 36px;
  line-height: 1.4;
}

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

.nav-list li a.is-current {
  background: var(--color-spine);
  color: var(--color-paper);
  font-weight: 600;
}

/* ---------- 主内容区 ---------- */
.site-main {
  flex: 1 0 auto;
  padding-top: 40px;
  padding-bottom: 56px;
}

/* 内页主容器（面包屑 + 页面标题 + 内容） */
.inner-main {
  padding-top: 24px;
  padding-bottom: 56px;
}

/* ---------- 面包屑 ---------- */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--color-muted);
  margin-bottom: 20px;
  flex-wrap: wrap;
}

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

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

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

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

/* ---------- 页面标题区（内页统一） ---------- */
.page-header {
  margin-bottom: 32px;
}

.page-title {
  font-size: 28px;
  font-weight: 700;
  line-height: 1.3;
  color: var(--color-spine);
  margin-bottom: 8px;
}

.page-description {
  font-size: 15px;
  color: var(--color-muted);
  max-width: 760px;
}

/* ---------- 页脚 ---------- */
.site-footer {
  background: var(--color-spine);
  color: #d9d0c8;
  margin-top: auto;
}

.footer-inner {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 40px;
  padding-top: 48px;
  padding-bottom: 40px;
}

.footer-col h2 {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-paper);
  margin-bottom: 14px;
}

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

.footer-col ul li a {
  color: #b8ada4;
  font-size: 14px;
}

.footer-col ul li a:hover {
  color: var(--color-banana);
}

.footer-logo {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-paper);
  display: inline-block;
  margin-bottom: 8px;
}

.footer-tagline {
  font-size: 14px;
  color: var(--color-banana);
  margin-bottom: 10px;
}

.footer-desc {
  font-size: 13px;
  color: #b8ada4;
  line-height: 1.6;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 16px var(--container-pad);
  text-align: center;
  font-size: 13px;
  color: #8f857c;
}

/* ---------- 相关链接（页面底部导览） ---------- */
.related-links {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 40px;
  padding: 16px 20px;
  background: var(--color-tag-bg);
  border-radius: var(--radius-md);
}

.related-links-label {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-spine);
  margin-right: 4px;
}

.related-links-item {
  font-size: 14px;
  color: var(--color-shelf);
  padding: 4px 10px;
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
}

.related-links-item:hover {
  border-color: var(--color-shelf);
  color: var(--color-shelf);
}

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

/* ---------- 区块标题（section-heading） ---------- */
.section-heading {
  margin-bottom: 24px;
}

.section-title {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-spine);
  line-height: 1.4;
  margin-bottom: 6px;
}

.section-desc {
  font-size: 14px;
  color: var(--color-muted);
  max-width: 720px;
}

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 10px 20px;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 600;
  transition: background var(--transition), color var(--transition),
    transform var(--transition);
}

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

.btn-primary:hover {
  background: #e6b634;
  color: var(--color-spine);
  transform: translateY(-1px);
}

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

.btn-secondary:hover {
  border-color: var(--color-shelf);
  color: var(--color-shelf);
  transform: translateY(-1px);
}

/* ---------- 表格 ---------- */
.table-wrapper {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow-x: auto;
}

.table-wrapper table {
  min-width: 560px;
}

.table-wrapper th,
.table-wrapper td {
  padding: 12px 16px;
  text-align: left;
  font-size: 14px;
  border-bottom: 1px solid var(--color-border);
}

.table-wrapper th {
  background: var(--color-tag-bg);
  font-weight: 600;
  color: var(--color-spine);
  white-space: nowrap;
}

.table-wrapper td {
  color: var(--color-ink);
}

.table-wrapper tbody tr:last-child td {
  border-bottom: none;
}

.table-wrapper tbody tr:hover td {
  background: #faf7f2;
}

/* 字段解释 */
.field-explainer,
.field-note {
  font-size: 13px;
  color: var(--color-muted);
  margin-top: 10px;
  line-height: 1.6;
}

/* ---------- 更多链接 ---------- */
.more-link {
  display: inline-block;
  margin-top: 16px;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-shelf);
}

.more-link::after {
  content: " →";
}

.more-link:hover {
  color: var(--color-spine);
}

/* ---------- 筛选器 ---------- */
.filter-bar,
.filter-tags {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 20px;
}

.filter-label {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-spine);
  margin-right: 4px;
}

.filter-chip,
.filter-tag {
  padding: 8px 16px;
  border: 1px solid var(--color-border);
  border-radius: 20px;
  font-size: 14px;
  color: var(--color-spine);
  background: var(--color-card);
  min-height: 36px;
  transition: background var(--transition), color var(--transition),
    border-color var(--transition);
}

.filter-chip:hover,
.filter-tag:hover {
  border-color: var(--color-shelf);
  color: var(--color-shelf);
}

.filter-chip.is-active,
.filter-tag.is-active {
  background: var(--color-shelf);
  border-color: var(--color-shelf);
  color: var(--color-paper);
}

/* ---------- 规则卡片 ---------- */
.rule-card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 20px;
  transition: box-shadow var(--transition), transform var(--transition);
}

.rule-card:hover {
  box-shadow: 0 4px 12px rgba(62, 47, 42, 0.08);
  transform: translateY(-2px);
}

.rule-card-title,
.rule-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-spine);
  margin-bottom: 8px;
}

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

/* ---------- FAQ 折叠 ---------- */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

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

.faq-question {
  padding: 16px 20px;
  font-size: 15px;
  font-weight: 600;
  color: var(--color-spine);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  list-style: none;
}

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

.faq-question::after {
  content: "+";
  font-size: 20px;
  font-weight: 400;
  color: var(--color-shelf);
  flex-shrink: 0;
  transition: transform var(--transition);
}

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

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

/* ---------- 状态标签 ---------- */
.status {
  display: inline-block;
  padding: 2px 10px;
  border-radius: 12px;
  font-size: 12px;
  font-weight: 600;
  white-space: nowrap;
}

.status-new {
  background: #fde8e6;
  color: var(--color-update);
}

.status-daily {
  background: #e8f0e9;
  color: var(--color-shelf);
}

.status-weekly {
  background: #fdf3d8;
  color: #b8860b;
}

.status-pause {
  background: #f0ece8;
  color: var(--color-muted);
}

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

/* ---------- 首屏双通道 ---------- */
.hero-dual {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.hero-copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.hero-title {
  font-size: 32px;
  font-weight: 700;
  line-height: 1.3;
  color: var(--color-spine);
  margin-bottom: 12px;
}

.hero-lead {
  font-size: 16px;
  color: var(--color-muted);
  line-height: 1.7;
}

.hero-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.hero-card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 24px;
  display: flex;
  flex-direction: column;
  transition: box-shadow var(--transition), transform var(--transition);
}

.hero-card:hover {
  box-shadow: 0 6px 16px rgba(62, 47, 42, 0.08);
  transform: translateY(-2px);
}

.hero-card-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-spine);
  margin-bottom: 8px;
}

.hero-card-text {
  font-size: 14px;
  color: var(--color-muted);
  line-height: 1.6;
  margin-bottom: 16px;
  flex: 1;
}

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

/* ---------- 封面墙大图 ---------- */
.hero-cover {
  margin: 0 0 48px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
  background: var(--color-card);
}

.hero-cover img {
  width: 100%;
  height: 320px;
  object-fit: cover;
}

/* ---------- 题材分类标签墙 ---------- */
.topic-tags {
  margin-bottom: 48px;
}

.tag-wall {
  display: flex;
  gap: 12px;
  overflow-x: auto;
  padding: 8px 4px 16px;
  scrollbar-width: thin;
  scrollbar-color: var(--color-border) transparent;
}

.tag-wall::-webkit-scrollbar {
  height: 6px;
}

.tag-wall::-webkit-scrollbar-thumb {
  background: var(--color-border);
  border-radius: 3px;
}

.tag-item {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  padding: 10px 22px;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 600;
  color: var(--color-spine);
  background: var(--color-card);
  border: 1px solid var(--color-border);
  min-height: 44px;
  transition: background var(--transition), color var(--transition),
    transform var(--transition);
}

.tag-item:hover {
  transform: translateY(-2px);
}

/* 题材书脊色 —— 每个题材一个色块 */
.tag-shonen {
  border-left: 4px solid #d94f43;
}

.tag-romance {
  border-left: 4px solid #e88aa8;
}

.tag-mystery {
  border-left: 4px solid #5b6b8c;
}

.tag-daily {
  border-left: 4px solid var(--color-shelf);
}

.tag-fantasy {
  border-left: 4px solid #8a6bb5;
}

.tag-sci-fi {
  border-left: 4px solid #4a8ba5;
}

.tag-sports {
  border-left: 4px solid #d98a3d;
}

.tag-horror {
  border-left: 4px solid #4d4d4d;
}

/* ---------- 最近更新数据表 ---------- */
.update-table {
  margin-bottom: 48px;
}

/* ---------- 热度榜单摘要 ---------- */
.ranking-preview {
  margin-bottom: 48px;
}

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

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

.rank-item:hover {
  box-shadow: 0 4px 12px rgba(62, 47, 42, 0.08);
  transform: translateY(-1px);
}

.rank-number {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-banana);
  width: 36px;
  text-align: center;
  flex-shrink: 0;
  -webkit-text-stroke: 1px var(--color-spine);
}

.rank-cover {
  width: 48px;
  height: 64px;
  object-fit: cover;
  border-radius: var(--radius-sm);
  flex-shrink: 0;
  background: var(--color-tag-bg);
}

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

.rank-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-spine);
  margin-bottom: 2px;
}

.rank-topic {
  font-size: 13px;
  color: var(--color-shelf);
  margin-bottom: 2px;
}

.rank-desc {
  font-size: 13px;
  color: var(--color-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ---------- 更新规则说明 ---------- */
.update-rule {
  margin-bottom: 16px;
}

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

/* --------------------------------------------------------------------------
   5. Pages —— 新手指南 guide.html
   -------------------------------------------------------------------------- */

/* 指南插图 */
.guide-figure {
  margin: 0 0 32px;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--color-border);
  background: var(--color-card);
}

.guide-figure img {
  width: 100%;
  height: 280px;
  object-fit: cover;
}

.guide-figure figcaption {
  padding: 10px 16px;
  font-size: 13px;
  color: var(--color-muted);
  text-align: center;
}

/* 步骤区 */
.steps-section {
  margin-bottom: 48px;
}

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

.step-card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 20px;
  display: flex;
  flex-direction: column;
  transition: box-shadow var(--transition), transform var(--transition);
}

.step-card:hover {
  box-shadow: 0 4px 12px rgba(62, 47, 42, 0.08);
  transform: translateY(-2px);
}

.step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--color-banana);
  color: var(--color-spine);
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 12px;
}

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

.step-text {
  font-size: 14px;
  color: var(--color-muted);
  line-height: 1.6;
  margin-bottom: 12px;
  flex: 1;
}

.step-link {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-shelf);
}

.step-link::after {
  content: " →";
}

/* 术语表 */
.terms-section {
  margin-bottom: 48px;
}

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

.term-item {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 16px 20px;
}

.term-name {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-spine);
  margin-bottom: 4px;
}

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

/* FAQ 区（guide） */
.faq-section {
  margin-bottom: 16px;
}

/* --------------------------------------------------------------------------
   6. Pages —— 追更日历 calendar.html
   -------------------------------------------------------------------------- */

/* 日历视觉 */
.calendar-visual {
  margin-bottom: 32px;
}

.calendar-figure {
  margin: 0;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--color-border);
  background: var(--color-card);
}

.calendar-figure img {
  width: 100%;
  height: 240px;
  object-fit: cover;
}

.calendar-figure figcaption {
  padding: 10px 16px;
  font-size: 13px;
  color: var(--color-muted);
  text-align: center;
}

/* 筛选区块 */
.filter-block {
  margin-bottom: 32px;
}

/* 更新表区块 */
.update-table-block {
  margin-bottom: 48px;
}

.date-tag {
  display: inline-block;
  padding: 2px 10px;
  border-radius: 12px;
  font-size: 12px;
  font-weight: 600;
  background: var(--color-tag-bg);
  color: var(--color-spine);
  white-space: nowrap;
}

.status-tag {
  display: inline-block;
  padding: 2px 10px;
  border-radius: 12px;
  font-size: 12px;
  font-weight: 600;
  white-space: nowrap;
}

/* 规律说明 */
.rules-block {
  margin-bottom: 16px;
}

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

.rules-more {
  margin-top: 20px;
  font-size: 14px;
  color: var(--color-muted);
}

.rules-more a {
  color: var(--color-shelf);
  font-weight: 600;
  margin-right: 16px;
}

.rules-more a:hover {
  color: var(--color-spine);
}

/* --------------------------------------------------------------------------
   7. Pages —— 题材书库 categories.html
   -------------------------------------------------------------------------- */

/* 筛选区 */
.filter-section {
  margin-bottom: 32px;
}

.filter-section .section-title {
  margin-bottom: 12px;
}

/* 结果列表 */
.results-section {
  margin-bottom: 40px;
}

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

.results-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.result-item {
  display: flex;
  gap: 16px;
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 16px;
  transition: box-shadow var(--transition), transform var(--transition);
}

.result-item:hover {
  box-shadow: 0 4px 12px rgba(62, 47, 42, 0.08);
  transform: translateY(-2px);
}

.result-cover {
  width: 72px;
  height: 96px;
  object-fit: cover;
  border-radius: var(--radius-sm);
  flex-shrink: 0;
  background: var(--color-tag-bg);
}

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

.result-name {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-spine);
  margin-bottom: 4px;
}

.result-genre {
  font-size: 13px;
  color: var(--color-shelf);
  margin-bottom: 6px;
}

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

.style-tag {
  display: inline-block;
  padding: 2px 10px;
  border-radius: 12px;
  font-size: 12px;
  background: var(--color-tag-bg);
  color: var(--color-spine);
  margin-right: 6px;
  margin-bottom: 4px;
}

/* 字段解释 */
.field-explainer {
  margin-bottom: 16px;
}

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

.explainer-item {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
}

.explainer-item dt {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-spine);
  margin-bottom: 4px;
}

.explainer-item dd {
  font-size: 13px;
  color: var(--color-muted);
  line-height: 1.6;
}

/* --------------------------------------------------------------------------
   8. Pages —— 热度榜单 ranking.html
   -------------------------------------------------------------------------- */

/* 总榜 */
.total-ranking {
  margin-bottom: 48px;
}

.ranking-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.ranking-item {
  display: flex;
  align-items: center;
  gap: 16px;
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 14px 18px;
  transition: box-shadow var(--transition), transform var(--transition);
}

.ranking-item:hover {
  box-shadow: 0 4px 12px rgba(62, 47, 42, 0.08);
  transform: translateY(-1px);
}

.ranking-no {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-banana);
  width: 40px;
  text-align: center;
  flex-shrink: 0;
  -webkit-text-stroke: 1px var(--color-spine);
}

.ranking-cover {
  flex-shrink: 0;
  margin: 0;
}

.ranking-cover img {
  width: 56px;
  height: 76px;
  object-fit: cover;
  border-radius: var(--radius-sm);
  background: var(--color-tag-bg);
}

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

.ranking-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-spine);
  margin-bottom: 2px;
}

.ranking-topic {
  font-size: 13px;
  color: var(--color-shelf);
  margin-bottom: 2px;
}

.ranking-brief {
  font-size: 13px;
  color: var(--color-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.ranking-heat {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
  min-width: 160px;
}

.heat-label {
  font-size: 12px;
  color: var(--color-muted);
}

.heat-bar {
  flex: 1;
  height: 6px;
  background: var(--color-tag-bg);
  border-radius: 3px;
  overflow: hidden;
  min-width: 60px;
}

.heat-fill {
  display: block;
  height: 100%;
  border-radius: 3px;
  background: var(--color-banana);
}

.heat-90 {
  width: 90%;
}

.heat-85 {
  width: 85%;
}

.heat-82 {
  width: 82%;
}

.heat-78 {
  width: 78%;
}

.heat-75 {
  width: 75%;
}

.heat-value {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-spine);
  min-width: 40px;
  text-align: right;
}

.section-footnote {
  margin-top: 16px;
  font-size: 13px;
  color: var(--color-muted);
}

.section-footnote a {
  color: var(--color-shelf);
  font-weight: 600;
}

/* 分类排行 */
.category-ranking {
  margin-bottom: 48px;
}

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

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

.category-name {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-spine);
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--color-banana);
}

.category-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 0;
  border-bottom: 1px solid var(--color-border);
  font-size: 14px;
}

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

.cat-rank {
  font-weight: 700;
  color: var(--color-banana);
  width: 24px;
  text-align: center;
  flex-shrink: 0;
  -webkit-text-stroke: 0.5px var(--color-spine);
}

.cat-title {
  flex: 1;
  color: var(--color-spine);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.cat-heat {
  font-size: 13px;
  color: var(--color-muted);
  flex-shrink: 0;
}

/* 榜单规则 */
.ranking-rules {
  margin-bottom: 16px;
}

/* --------------------------------------------------------------------------
   9. Pages —— 阅读说明 reading.html
   -------------------------------------------------------------------------- */

/* 内容边界 */
.boundary-section {
  margin-bottom: 48px;
}

.section-intro {
  font-size: 14px;
  color: var(--color-muted);
  margin-bottom: 20px;
  max-width: 720px;
}

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

.boundary-card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 20px;
  border-top: 4px solid var(--color-banana);
  transition: box-shadow var(--transition), transform var(--transition);
}

.boundary-card:hover {
  box-shadow: 0 4px 12px rgba(62, 47, 42, 0.08);
  transform: translateY(-2px);
}

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

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

/* 反馈流程 */
.feedback-section {
  margin-bottom: 40px;
}

.feedback-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 20px;
}

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

.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--color-shelf);
  color: var(--color-paper);
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 10px;
}

.step-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-spine);
  margin-bottom: 6px;
}

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

.feedback-note {
  font-size: 14px;
  color: var(--color-muted);
}

.feedback-note a {
  color: var(--color-shelf);
  font-weight: 600;
  margin-right: 16px;
}

/* 规则插图 */
.rule-illustration {
  margin: 0 0 16px;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--color-border);
  background: var(--color-card);
}

.rule-image {
  width: 100%;
  height: 240px;
  object-fit: cover;
}

.rule-caption {
  padding: 10px 16px;
  font-size: 13px;
  color: var(--color-muted);
  text-align: center;
}

/* --------------------------------------------------------------------------
   10. Pages —— 404 错误页
   -------------------------------------------------------------------------- */

.error-main {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 60vh;
  padding-top: 0;
}

.error-panel {
  text-align: center;
  max-width: 480px;
  padding: 40px 32px;
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.error-code {
  font-size: 72px;
  font-weight: 700;
  color: var(--color-banana);
  line-height: 1;
  -webkit-text-stroke: 2px var(--color-spine);
  margin-bottom: 12px;
}

.error-panel h1 {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-spine);
  margin-bottom: 10px;
}

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

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

.error-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 10px 20px;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 600;
  background: var(--color-banana);
  color: var(--color-spine);
}

.error-link:hover {
  background: #e6b634;
  color: var(--color-spine);
}

.error-link + .error-link {
  background: var(--color-card);
  border: 1px solid var(--color-border);
}

.error-link + .error-link:hover {
  border-color: var(--color-shelf);
  color: var(--color-shelf);
}

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

/* ---------- 平板及以下：≤ 1024px ---------- */
@media (max-width: 1024px) {
  :root {
    --container-pad: 20px;
  }

  .footer-inner {
    grid-template-columns: 1.2fr 1fr 1fr;
    gap: 32px;
  }

  .footer-brand {
    grid-column: 1 / -1;
  }

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

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

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

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

/* ---------- 手机端：≤ 768px ---------- */
@media (max-width: 768px) {
  :root {
    --container-pad: 16px;
    --header-h: 56px;
  }

  .header-inner {
    flex-wrap: wrap;
    gap: 8px;
    padding-top: 8px;
    padding-bottom: 8px;
  }

  .brand-slogan {
    display: none;
  }

  /* 导航按钮显示，列表收起 */
  .nav-toggle {
    display: inline-flex;
  }

  .nav-list {
    display: none;
    width: 100%;
    flex-direction: column;
    align-items: stretch;
    padding: 8px 0 12px;
    gap: 2px;
  }

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

  .nav-list li a {
    padding: 12px 16px;
    min-height: 44px;
    border-radius: var(--radius-sm);
  }

  /* 首页首屏 */
  .hero-dual {
    grid-template-columns: 1fr;
    gap: 24px;
  }

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

  .hero-actions {
    grid-template-columns: 1fr;
  }

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

  /* 标签墙横向滚动保留 */
  .tag-wall {
    -webkit-overflow-scrolling: touch;
    scroll-snap-type: x proximity;
  }

  .tag-item {
    scroll-snap-align: start;
  }

  /* 规则卡片单列 */
  .rule-cards {
    grid-template-columns: 1fr;
  }

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

  /* 榜单 */
  .ranking-heat {
    min-width: 100px;
  }

  .heat-label {
    display: none;
  }

  .category-groups {
    grid-template-columns: 1fr;
  }

  /* 题材书库结果 */
  .results-list {
    grid-template-columns: 1fr;
  }

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

  /* 术语表 */
  .terms-list {
    grid-template-columns: 1fr;
  }

  /* 边界卡片 */
  .boundary-grid {
    grid-template-columns: 1fr;
  }

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

  /* 页脚 */
  .footer-inner {
    grid-template-columns: 1fr;
    gap: 28px;
    padding-top: 36px;
  }

  .footer-brand {
    grid-column: auto;
  }

  /* 相关链接 */
  .related-links {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }

  /* 表格横向滚动 */
  .table-wrapper {
    -webkit-overflow-scrolling: touch;
  }

  /* 排名条目 */
  .ranking-item {
    flex-wrap: wrap;
    gap: 10px;
  }

  .ranking-info {
    min-width: calc(100% - 130px);
  }

  .ranking-heat {
    width: 100%;
    margin-left: 56px;
  }

  /* 步骤卡片 */
  .steps-grid {
    grid-template-columns: 1fr;
  }

  .step-card {
    padding: 16px;
  }

  /* 页头导航 */
  .site-header {
    position: relative;
  }
}

/* ---------- 小屏手机：≤ 390px ---------- */
@media (max-width: 390px) {
  .rank-item {
    gap: 10px;
    padding: 10px 12px;
  }

  .rank-cover {
    width: 40px;
    height: 56px;
  }

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

  .result-item {
    flex-direction: column;
  }

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

  .ranking-cover img {
    width: 44px;
    height: 60px;
  }

  .ranking-no {
    font-size: 18px;
    width: 30px;
  }

  .ranking-heat {
    margin-left: 40px;
  }

  .filter-bar,
  .filter-tags {
    gap: 6px;
  }

  .filter-chip,
  .filter-tag {
    padding: 6px 12px;
    font-size: 13px;
  }

  .hero-card {
    padding: 18px;
  }

  .btn {
    padding: 8px 14px;
    font-size: 14px;
  }
}