/* ============================================================
   漫画岛 · 全站样式表
   设计方向：年度报告风（深色封面区 + 纸白内容区）
   ============================================================ */

/* ============================================================
   base —— 基础变量、重置、全局字体与骨架
   ============================================================ */

:root {
  --color-ink: #101828;
  --color-paper: #F5F3EE;
  --color-coral: #FF7A66;
  --color-yellow: #F6C453;
  --color-moss: #2F6F5E;
  --color-white: #ffffff;
  --color-gray-50: #f9fafb;
  --color-gray-100: #f3f4f6;
  --color-gray-200: #e5e7eb;
  --color-gray-300: #d1d5db;
  --color-gray-400: #9ca3af;
  --color-gray-500: #6b7280;
  --color-gray-600: #4b5563;
  --color-gray-700: #374151;
  --color-gray-800: #1f2937;

  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --font-num: Georgia, "Times New Roman", "Songti SC", serif;

  --container-width: 1200px;
  --sidebar-width: 240px;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 8px;

  --shadow-sm: 0 1px 2px rgba(16, 24, 40, 0.06);
  --shadow-md: 0 4px 12px rgba(16, 24, 40, 0.08);
  --shadow-lg: 0 8px 24px rgba(16, 24, 40, 0.1);

  --header-h: 64px;
  --transition-fast: 0.2s ease;
  --transition-base: 0.3s 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: 15px;
  line-height: 1.7;
  color: var(--color-gray-700);
  background-color: var(--color-paper);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

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

ul,
ol {
  list-style: none;
}

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

h1,
h2,
h3,
h4,
h5,
h6 {
  color: var(--color-ink);
  line-height: 1.3;
  font-weight: 700;
}

/* 章节大数字 */
.section-number {
  font-family: var(--font-num);
  font-size: 3rem;
  font-weight: 700;
  line-height: 1;
  color: var(--color-coral);
  display: inline-block;
}

/* 通用文本链接 */
.text-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-weight: 600;
  font-size: 14px;
  color: var(--color-moss);
}

.text-link::after {
  content: "→";
  transition: transform var(--transition-fast);
}

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

.text-link:hover::after {
  transform: translateX(3px);
}

/* 通用容器 */
.site-body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

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

/* 内页主容器 */
.inner-main {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 32px 24px 64px;
  background-color: var(--color-white);
  min-height: 60vh;
}

/* ============================================================
   layout —— 页头、导航、页脚、面包屑、页面标题
   ============================================================ */

/* ---------- 页头 ---------- */

.site-header {
  background-color: var(--color-ink);
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 3px solid var(--color-coral);
}

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

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

.brand-name {
  font-size: 22px;
  font-weight: 800;
  color: var(--color-white);
  letter-spacing: 1px;
}

.brand-tagline {
  font-size: 12px;
  color: var(--color-gray-400);
  display: none;
}

/* 导航 */
.site-nav {
  margin-left: auto;
}

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

.nav-item {
  position: relative;
}

.nav-link {
  display: block;
  padding: 8px 14px;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-gray-300);
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast), background-color var(--transition-fast);
}

.nav-link:hover {
  color: var(--color-white);
  background-color: rgba(255, 255, 255, 0.08);
}

.nav-link.is-current {
  color: var(--color-white);
  background-color: var(--color-coral);
  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-sm);
}

.nav-toggle-bar {
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--color-white);
  border-radius: 2px;
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

/* ---------- 面包屑 ---------- */

.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
  font-size: 13px;
  color: var(--color-gray-500);
  padding: 16px 0 8px;
}

.breadcrumb a {
  color: var(--color-gray-500);
}

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

.breadcrumb-sep {
  color: var(--color-gray-300);
  font-size: 12px;
}

.breadcrumb-current {
  color: var(--color-gray-700);
  font-weight: 500;
}

/* ---------- 页面标题区 ---------- */

.page-header {
  padding: 24px 0 32px;
  border-bottom: 1px solid var(--color-gray-200);
  margin-bottom: 36px;
}

.page-header .section-number {
  font-size: 2rem;
  margin-bottom: 8px;
}

.page-title {
  font-size: 28px;
  font-weight: 800;
  color: var(--color-ink);
  margin: 8px 0 12px;
}

.page-description {
  font-size: 15px;
  color: var(--color-gray-500);
  max-width: 680px;
}

.page-lead {
  font-size: 15px;
  color: var(--color-gray-500);
  max-width: 680px;
  margin-top: 8px;
}

.page-intro {
  font-size: 15px;
  color: var(--color-gray-500);
  max-width: 680px;
  margin-top: 8px;
}

/* ---------- 页脚 ---------- */

.site-footer {
  background-color: var(--color-ink);
  color: var(--color-gray-400);
  margin-top: auto;
}

.footer-inner {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 48px 24px 32px;
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 40px;
}

.footer-brand-name {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 10px;
}

.footer-brand-desc {
  font-size: 13px;
  line-height: 1.7;
  color: var(--color-gray-400);
}

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

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

.footer-links a {
  font-size: 13px;
  color: var(--color-gray-400);
}

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

.footer-note-text {
  font-size: 13px;
  line-height: 1.7;
  color: var(--color-gray-500);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 16px 24px;
  text-align: center;
}

.footer-bottom p {
  font-size: 12px;
  color: var(--color-gray-500);
  max-width: var(--container-width);
  margin: 0 auto;
}

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

/* ---------- 按钮 ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 24px;
  font-size: 14px;
  font-weight: 600;
  border-radius: var(--radius-md);
  transition: background-color var(--transition-fast), color var(--transition-fast),
    transform var(--transition-fast), box-shadow var(--transition-fast);
  min-height: 44px;
}

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

.btn-primary:hover {
  background-color: #e86a55;
  color: var(--color-white);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-secondary {
  background-color: transparent;
  color: var(--color-white);
  border: 1px solid rgba(255, 255, 255, 0.4);
}

.btn-secondary:hover {
  border-color: var(--color-white);
  color: var(--color-white);
  background-color: rgba(255, 255, 255, 0.08);
}

/* ---------- 章节标题 ---------- */

.section-heading {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 28px;
}

.section-heading .section-number {
  font-size: 2.25rem;
  min-width: 56px;
}

.section-title {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-ink);
  position: relative;
  padding-bottom: 8px;
}

.section-title::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 48px;
  height: 3px;
  background-color: var(--color-coral);
  border-radius: 2px;
}

/* ---------- 封面卡 ---------- */

.cover-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

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

.cover-figure {
  aspect-ratio: 3 / 4;
  overflow: hidden;
  background-color: var(--color-gray-100);
}

.cover-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-base);
}

.cover-card:hover .cover-image {
  transform: scale(1.03);
}

.cover-card h3 {
  font-size: 15px;
  font-weight: 600;
  padding: 12px 12px 0;
}

.cover-tag {
  display: inline-block;
  font-size: 12px;
  color: var(--color-moss);
  background-color: rgba(47, 111, 94, 0.08);
  padding: 2px 10px;
  border-radius: 20px;
  margin: 8px 12px 0;
}

.cover-desc {
  font-size: 13px;
  color: var(--color-gray-500);
  padding: 8px 12px 14px;
  line-height: 1.6;
}

/* ---------- 更新条 ---------- */

.update-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 16px 0;
  border-bottom: 1px solid var(--color-gray-100);
}

.update-thumb {
  width: 64px;
  height: 88px;
  object-fit: cover;
  border-radius: var(--radius-sm);
  flex-shrink: 0;
  background-color: var(--color-gray-100);
}

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

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

.update-desc {
  font-size: 13px;
  color: var(--color-gray-500);
  line-height: 1.6;
  margin-bottom: 6px;
}

.update-tag {
  display: inline-block;
  font-size: 12px;
  color: var(--color-moss);
  background-color: rgba(47, 111, 94, 0.08);
  padding: 2px 10px;
  border-radius: 20px;
}

/* ---------- 排行榜列表 ---------- */

.ranking-list {
  counter-reset: rank;
}

.ranking-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 14px 0;
  border-bottom: 1px solid var(--color-gray-100);
}

.ranking-number {
  font-family: var(--font-num);
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--color-gray-300);
  width: 48px;
  text-align: center;
  flex-shrink: 0;
}

.ranking-item:nth-child(-n + 3) .ranking-number {
  color: var(--color-coral);
}

.ranking-thumb {
  width: 48px;
  height: 64px;
  object-fit: cover;
  border-radius: var(--radius-sm);
  flex-shrink: 0;
  background-color: var(--color-gray-100);
}

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

.ranking-title {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 2px;
}

.ranking-tag {
  font-size: 12px;
  color: var(--color-gray-500);
}

/* ---------- 专题卡 ---------- */

.topic-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

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

.topic-image {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  background-color: var(--color-gray-100);
}

.topic-content {
  padding: 16px;
}

.topic-title {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 8px;
}

.topic-desc {
  font-size: 13px;
  color: var(--color-gray-500);
  line-height: 1.6;
  margin-bottom: 12px;
}

/* ---------- 题材标签 ---------- */

.tag-link {
  display: inline-block;
  padding: 6px 16px;
  font-size: 13px;
  font-weight: 500;
  color: var(--color-gray-600);
  background-color: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: 20px;
  transition: all var(--transition-fast);
}

.tag-link:hover {
  color: var(--color-white);
  background-color: var(--color-moss);
  border-color: var(--color-moss);
}

/* ---------- FAQ ---------- */

.faq-card,
.faq-item {
  background-color: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-md);
  margin-bottom: 12px;
  overflow: hidden;
}

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

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

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

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

.faq-question:hover {
  background-color: var(--color-gray-50);
}

.faq-answer {
  padding: 0 20px 16px;
  font-size: 14px;
  color: var(--color-gray-600);
  line-height: 1.7;
}

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

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

/* ---------- 相关推荐 ---------- */

.related-links {
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1px solid var(--color-gray-200);
}

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

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

.related-list a {
  display: inline-block;
  padding: 6px 16px;
  font-size: 13px;
  background-color: var(--color-gray-50);
  border: 1px solid var(--color-gray-200);
  border-radius: 20px;
  color: var(--color-gray-600);
  transition: all var(--transition-fast);
}

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

/* ============================================================
   components —— 首页专属组件
   ============================================================ */

/* ---------- Hero 首屏 ---------- */

.hero-section {
  background-color: var(--color-ink);
  color: var(--color-white);
  padding: 64px 24px 48px;
  position: relative;
  overflow: hidden;
}

.hero-section::before {
  content: "";
  position: absolute;
  top: -80px;
  right: -80px;
  width: 320px;
  height: 320px;
  border-radius: 50%;
  background-color: rgba(255, 122, 102, 0.12);
}

.hero-section::after {
  content: "";
  position: absolute;
  bottom: -100px;
  left: 30%;
  width: 260px;
  height: 260px;
  border-radius: 50%;
  background-color: rgba(47, 111, 94, 0.15);
}

.hero-section > * {
  position: relative;
  z-index: 1;
}

.hero-section .hero-content,
.hero-section .hero-figure {
  max-width: var(--container-width);
  margin: 0 auto;
}

.hero-content {
  text-align: center;
  max-width: 720px;
  margin: 0 auto;
}

.hero-title {
  font-size: 32px;
  font-weight: 800;
  color: var(--color-white);
  line-height: 1.25;
  margin-bottom: 16px;
}

.hero-lead {
  font-size: 16px;
  color: var(--color-gray-300);
  line-height: 1.8;
  max-width: 560px;
  margin: 0 auto 24px;
}

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

.hero-tags {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 10px;
}

.hero-tags .tag-link {
  background-color: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.2);
  color: var(--color-gray-300);
}

.hero-tags .tag-link:hover {
  background-color: var(--color-coral);
  border-color: var(--color-coral);
  color: var(--color-white);
}

.hero-figure {
  margin-top: 40px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.hero-image {
  width: 100%;
  aspect-ratio: 16 / 7;
  object-fit: cover;
}

/* ---------- 首页章节 ---------- */

.home-section {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 56px 24px;
}

.section-about {
  background-color: var(--color-white);
}

.section-recommend {
  background-color: var(--color-paper);
}

.section-updates {
  background-color: var(--color-white);
}

.section-ranking {
  background-color: var(--color-paper);
}

.section-topics {
  background-color: var(--color-white);
}

.section-guide {
  background-color: var(--color-ink);
}

/* 章节一：定位说明 */
.section-intro {
  font-size: 15px;
  color: var(--color-gray-600);
  line-height: 1.8;
  max-width: 720px;
  margin-bottom: 28px;
}

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

.method-card {
  background-color: var(--color-gray-50);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-md);
  padding: 24px;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.method-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.method-title {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--color-ink);
}

.method-text {
  font-size: 13px;
  color: var(--color-gray-500);
  line-height: 1.7;
  margin-bottom: 14px;
}

/* 章节二：编辑推荐封面墙 */
.cover-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

/* 章节三：最近更新 */
.update-list {
  max-width: 760px;
}

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

/* 章节四：人气榜单 */
.ranking-list {
  max-width: 760px;
}

/* 章节五：编辑专题 */
.topic-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

/* 章节六：指南 */
.section-guide .section-heading .section-title {
  color: var(--color-white);
}

.section-guide .section-heading .section-title::after {
  background-color: var(--color-yellow);
}

.guide-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.guide-card {
  background-color: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-md);
  padding: 28px;
  transition: background-color var(--transition-base), transform var(--transition-base);
}

.guide-card:hover {
  background-color: rgba(255, 255, 255, 0.1);
  transform: translateY(-3px);
}

.guide-card-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 10px;
}

.guide-card-text {
  font-size: 14px;
  color: var(--color-gray-300);
  line-height: 1.7;
  margin-bottom: 20px;
}

/* ============================================================
   components —— 内页组件
   ============================================================ */

/* ---------- 侧栏布局通用 ---------- */

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

.sidebar-left {
  grid-template-columns: var(--sidebar-width) 1fr;
}

.sidebar-left .filter-sidebar,
.sidebar-left .guide-sidebar {
  grid-column: 1;
}

.sidebar-left .ranking-content,
.sidebar-left .guide-content {
  grid-column: 2;
}

/* ---------- 排行榜筛选栏 ---------- */

.filter-sidebar {
  background-color: var(--color-gray-50);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-md);
  padding: 20px;
  align-self: start;
}

.filter-title {
  font-size: 14px;
  font-weight: 700;
  color: var(--color-ink);
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--color-coral);
}

.filter-tags,
.filter-sort,
.filter-status {
  margin-bottom: 24px;
}

.filter-tags li,
.filter-sort li,
.filter-status li {
  margin-bottom: 6px;
}

.filter-link,
.sort-label,
.status-link {
  display: block;
  padding: 8px 12px;
  font-size: 14px;
  color: var(--color-gray-600);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  cursor: pointer;
}

.filter-link:hover,
.status-link:hover {
  background-color: var(--color-gray-100);
  color: var(--color-ink);
}

.filter-link.is-active,
.status-link.is-active {
  background-color: var(--color-moss);
  color: var(--color-white);
  font-weight: 600;
}

.sort-label {
  display: flex;
  align-items: center;
  gap: 8px;
}

.sort-label.is-active {
  color: var(--color-coral);
  font-weight: 700;
}

.sort-label.is-active::before {
  content: "●";
  font-size: 8px;
  color: var(--color-coral);
}

/* ---------- 排行榜内容 ---------- */

.rank-section {
  margin-bottom: 40px;
}

.section-subtitle {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-ink);
  margin-bottom: 8px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--color-coral);
  display: inline-block;
}

.rank-section .section-intro {
  font-size: 14px;
  color: var(--color-gray-500);
  margin-bottom: 20px;
}

.rank-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 14px 0;
  border-bottom: 1px solid var(--color-gray-100);
  transition: background-color var(--transition-fast);
}

.rank-item:hover {
  background-color: var(--color-gray-50);
}

.rank-number {
  font-family: var(--font-num);
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-gray-300);
  width: 56px;
  text-align: center;
  flex-shrink: 0;
}

.rank-item:nth-child(-n + 3) .rank-number {
  color: var(--color-coral);
}

.rank-cover {
  width: 52px;
  height: 70px;
  object-fit: cover;
  border-radius: var(--radius-sm);
  flex-shrink: 0;
  background-color: var(--color-gray-100);
}

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

.rank-name {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 2px;
}

.rank-genre {
  font-size: 12px;
  color: var(--color-gray-500);
}

.rank-status {
  font-size: 12px;
  color: var(--color-moss);
  background-color: rgba(47, 111, 94, 0.08);
  padding: 2px 10px;
  border-radius: 20px;
  flex-shrink: 0;
  white-space: nowrap;
}

/* ---------- 题材分类页 ---------- */

.genre-overview {
  margin-bottom: 48px;
}

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

.section-desc {
  font-size: 14px;
  color: var(--color-gray-500);
  margin-bottom: 20px;
}

.tag-wall {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.tag-item {
  display: inline-block;
  padding: 8px 20px;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-gray-600);
  background-color: var(--color-gray-50);
  border: 1px solid var(--color-gray-200);
  border-radius: 20px;
  transition: all var(--transition-fast);
}

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

.genre-chapter {
  margin-bottom: 48px;
  padding-top: 8px;
}

.chapter-head {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--color-gray-200);
}

.chapter-no {
  font-family: var(--font-num);
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-coral);
  line-height: 1;
  min-width: 48px;
}

.chapter-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-ink);
  margin-bottom: 4px;
}

.chapter-desc {
  font-size: 14px;
  color: var(--color-gray-500);
}

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

.genre-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

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

.genre-card-figure {
  aspect-ratio: 3 / 4;
  overflow: hidden;
  background-color: var(--color-gray-100);
}

.genre-card-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-base);
}

.genre-card:hover .genre-card-img {
  transform: scale(1.03);
}

.genre-card-body {
  padding: 14px;
}

.genre-card-title {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 4px;
}

.genre-card-tag {
  font-size: 12px;
  color: var(--color-moss);
  margin-bottom: 6px;
}

.genre-card-desc {
  font-size: 13px;
  color: var(--color-gray-500);
  line-height: 1.6;
}

/* ---------- 最近更新页 ---------- */

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

.sidebar-right {
  grid-template-columns: 1fr 320px;
}

.sidebar-right .updates-main {
  grid-column: 1;
}

.sidebar-right .updates-aside {
  grid-column: 2;
}

.updates-section .section-title {
  margin-bottom: 20px;
}

.updates-list .update-item {
  padding: 18px 0;
}

.updates-list .update-thumb {
  width: 72px;
  height: 96px;
}

.updates-list .update-title {
  font-size: 16px;
}

.updates-list .update-desc {
  margin-bottom: 8px;
}

.update-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

.update-name {
  font-size: 12px;
  color: var(--color-gray-400);
}

.updates-aside {
  align-self: start;
}

.tips-section,
.hot-updates-section {
  background-color: var(--color-gray-50);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-md);
  padding: 20px;
  margin-bottom: 20px;
}

.aside-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--color-ink);
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--color-coral);
}

.tip-card {
  padding: 12px 0;
  border-bottom: 1px solid var(--color-gray-200);
}

.tip-card:last-child {
  border-bottom: none;
}

.tip-title {
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 4px;
}

.tip-text {
  font-size: 13px;
  color: var(--color-gray-500);
  line-height: 1.6;
}

.hot-list li {
  margin-bottom: 10px;
}

.hot-item a {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: var(--color-gray-600);
  padding: 6px 8px;
  border-radius: var(--radius-sm);
  transition: background-color var(--transition-fast);
}

.hot-item a:hover {
  background-color: var(--color-gray-100);
  color: var(--color-ink);
}

.hot-rank {
  font-family: var(--font-num);
  font-weight: 700;
  color: var(--color-coral);
  min-width: 24px;
  font-size: 15px;
}

.hot-name {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ---------- 编辑专题页 ---------- */

.editor-pick {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 32px;
  background-color: var(--color-ink);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-bottom: 48px;
}

.editor-pick-media {
  overflow: hidden;
  min-height: 280px;
}

.editor-pick-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.editor-pick-content {
  padding: 32px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.editor-label {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  color: var(--color-yellow);
  letter-spacing: 2px;
  margin-bottom: 12px;
  text-transform: uppercase;
}

.editor-pick-content h2 {
  font-size: 24px;
  font-weight: 800;
  color: var(--color-white);
  margin-bottom: 16px;
}

.editor-pick-content p {
  font-size: 14px;
  color: var(--color-gray-300);
  line-height: 1.8;
  margin-bottom: 12px;
}

.editor-pick-content .text-link {
  color: var(--color-yellow);
  margin-top: 8px;
  align-self: flex-start;
}

.editor-pick-content .text-link:hover {
  color: var(--color-coral);
}

.topics-list {
  margin-bottom: 48px;
}

.topics-list .section-heading {
  margin-bottom: 24px;
}

.topics-list .section-heading .section-number {
  font-size: 2rem;
}

.topic-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.topic-card-body {
  padding: 20px;
}

.topic-card-body h3 {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 8px;
}

.topic-card-body p {
  font-size: 14px;
  color: var(--color-gray-500);
  line-height: 1.7;
  margin-bottom: 12px;
}

.topic-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 12px;
}

.topic-tags a {
  font-size: 12px;
  color: var(--color-moss);
  background-color: rgba(47, 111, 94, 0.08);
  padding: 2px 12px;
  border-radius: 20px;
}

.topic-tags a:hover {
  background-color: var(--color-moss);
  color: var(--color-white);
}

.related-guide {
  margin-top: 48px;
}

.related-guide .section-heading {
  margin-bottom: 24px;
}

.related-guide .section-heading .section-number {
  font-size: 2rem;
}

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

.guide-entry {
  display: flex;
  flex-direction: column;
  gap: 6px;
  background-color: var(--color-gray-50);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-md);
  padding: 20px;
  transition: all var(--transition-base);
}

.guide-entry:hover {
  border-color: var(--color-moss);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.guide-entry-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--color-ink);
}

.guide-entry-desc {
  font-size: 13px;
  color: var(--color-gray-500);
  line-height: 1.6;
}

/* ---------- 阅读指南页 ---------- */

.sidebar-left .guide-sidebar {
  background-color: var(--color-gray-50);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-md);
  padding: 20px;
  align-self: start;
  position: sticky;
  top: calc(var(--header-h) + 16px);
}

.sidebar-title {
  font-size: 14px;
  font-weight: 700;
  color: var(--color-ink);
  margin-bottom: 14px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--color-coral);
}

.guide-directory li {
  margin-bottom: 4px;
}

.guide-directory a {
  display: block;
  padding: 8px 12px;
  font-size: 14px;
  color: var(--color-gray-600);
  border-radius: var(--radius-sm);
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.guide-directory a:hover {
  background-color: var(--color-gray-100);
  color: var(--color-moss);
}

.guide-section {
  margin-bottom: 48px;
  padding-bottom: 32px;
  border-bottom: 1px solid var(--color-gray-200);
}

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

.guide-section-title {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-ink);
  margin-bottom: 12px;
  padding-bottom: 8px;
  position: relative;
}

.guide-section-title::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 40px;
  height: 3px;
  background-color: var(--color-coral);
  border-radius: 2px;
}

.guide-section-lead {
  font-size: 14px;
  color: var(--color-gray-500);
  line-height: 1.7;
  margin-bottom: 20px;
}

.guide-section-lead a {
  font-weight: 600;
  color: var(--color-moss);
}

.guide-section-lead a:hover {
  color: var(--color-coral);
}

.guide-visual {
  margin-top: 24px;
}

.guide-figure {
  border-radius: var(--radius-md);
  overflow: hidden;
  background-color: var(--color-gray-100);
}

.guide-figure img {
  width: 100%;
  aspect-ratio: 16 / 7;
  object-fit: cover;
}

.guide-figure figcaption {
  padding: 10px 16px;
  font-size: 13px;
  color: var(--color-gray-500);
  background-color: var(--color-gray-50);
}

/* ---------- 站点说明页 ---------- */

.feedback-figure {
  margin-bottom: 40px;
  border-radius: var(--radius-md);
  overflow: hidden;
  background-color: var(--color-gray-100);
}

.feedback-figure img {
  width: 100%;
  aspect-ratio: 16 / 7;
  object-fit: cover;
}

.feedback-figure figcaption {
  padding: 10px 16px;
  font-size: 13px;
  color: var(--color-gray-500);
  background-color: var(--color-gray-50);
}

.feedback-section {
  margin-bottom: 48px;
  padding-bottom: 40px;
  border-bottom: 1px solid var(--color-gray-200);
}

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

.feedback-section .section-title {
  font-size: 22px;
  margin-bottom: 16px;
}

.section-text {
  font-size: 14px;
  color: var(--color-gray-600);
  line-height: 1.8;
  margin-bottom: 16px;
  max-width: 760px;
}

.boundary-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 20px;
}

.boundary-card {
  background-color: var(--color-gray-50);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-md);
  padding: 20px;
}

.boundary-card-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--color-ink);
  margin-bottom: 8px;
}

.boundary-card-text {
  font-size: 13px;
  color: var(--color-gray-500);
  line-height: 1.7;
}

.column-list li {
  display: flex;
  gap: 16px;
  padding: 12px 0;
  border-bottom: 1px solid var(--color-gray-100);
}

.column-name {
  font-weight: 600;
  font-size: 14px;
  color: var(--color-ink);
  min-width: 96px;
  flex-shrink: 0;
}

.column-desc {
  font-size: 14px;
  color: var(--color-gray-600);
  line-height: 1.7;
}

.principle-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-top: 20px;
}

.principle-item {
  background-color: var(--color-gray-50);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-md);
  padding: 20px;
}

.principle-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--color-ink);
  margin-bottom: 8px;
}

.principle-text {
  font-size: 13px;
  color: var(--color-gray-500);
  line-height: 1.7;
}

/* ---------- 404 页 ---------- */

.error-main {
  background-color: var(--color-ink);
  min-height: 70vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.error-section {
  text-align: center;
  padding: 64px 24px;
  color: var(--color-white);
}

.error-code {
  font-family: var(--font-num);
  font-size: 6rem;
  font-weight: 800;
  color: var(--color-coral);
  line-height: 1;
  margin-bottom: 16px;
}

.error-section h1 {
  font-size: 28px;
  color: var(--color-white);
  margin-bottom: 12px;
}

.error-desc {
  font-size: 15px;
  color: var(--color-gray-300);
  margin-bottom: 32px;
}

.error-back-btn {
  display: inline-block;
  padding: 12px 32px;
  font-size: 15px;
  font-weight: 600;
  color: var(--color-white);
  background-color: var(--color-coral);
  border-radius: var(--radius-md);
  transition: background-color var(--transition-fast), transform var(--transition-fast);
  min-height: 44px;
  line-height: 1.5;
}

.error-back-btn:hover {
  background-color: #e86a55;
  color: var(--color-white);
  transform: translateY(-2px);
}

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

.error-help a {
  font-size: 14px;
  color: var(--color-gray-300);
  padding: 8px 16px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 20px;
  transition: all var(--transition-fast);
}

.error-help a:hover {
  color: var(--color-white);
  border-color: var(--color-coral);
}

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

/* ---------- 1024px ---------- */

@media (max-width: 1024px) {
  .footer-inner {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }

  .sidebar-left {
    grid-template-columns: 1fr;
  }

  .sidebar-left .filter-sidebar,
  .sidebar-left .guide-sidebar {
    grid-column: 1;
  }

  .sidebar-left .ranking-content,
  .sidebar-left .guide-content {
    grid-column: 1;
  }

  .filter-sidebar {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    align-items: flex-start;
  }

  .filter-sidebar .filter-title {
    width: 100%;
  }

  .filter-tags,
  .filter-sort,
  .filter-status {
    margin-bottom: 0;
  }

  .sidebar-left .guide-sidebar {
    position: static;
  }

  .sidebar-right {
    grid-template-columns: 1fr;
  }

  .sidebar-right .updates-main {
    grid-column: 1;
  }

  .sidebar-right .updates-aside {
    grid-column: 1;
  }

  .updates-aside {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
  }

  .tips-section,
  .hot-updates-section {
    margin-bottom: 0;
  }

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

  .editor-pick-media {
    min-height: 200px;
  }

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

/* ---------- 768px ---------- */

@media (max-width: 768px) {
  .header-inner {
    padding: 0 16px;
  }

  .brand-tagline {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }

  .site-nav {
    position: absolute;
    top: var(--header-h);
    left: 0;
    right: 0;
    background-color: var(--color-ink);
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    box-shadow: var(--shadow-lg);
  }

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

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

  .nav-link {
    padding: 14px 12px;
    font-size: 15px;
  }

  .inner-main {
    padding: 24px 16px 48px;
  }

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

  .hero-section {
    padding: 48px 16px 40px;
  }

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

  .hero-image {
    aspect-ratio: 16 / 9;
  }

  .home-section {
    padding: 40px 16px;
  }

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

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

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

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

  .update-item {
    gap: 12px;
  }

  .update-thumb {
    width: 56px;
    height: 76px;
  }

  .ranking-item {
    gap: 12px;
  }

  .ranking-thumb {
    width: 44px;
    height: 58px;
  }

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

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

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

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

  .chapter-head {
    gap: 12px;
  }

  .chapter-no {
    font-size: 1.5rem;
    min-width: 36px;
  }

  .rank-item {
    gap: 12px;
  }

  .rank-number {
    font-size: 1.5rem;
    width: 40px;
  }

  .rank-cover {
    width: 44px;
    height: 58px;
  }

  .error-code {
    font-size: 4.5rem;
  }
}

/* ---------- 480px ---------- */

@media (max-width: 480px) {
  .brand-name {
    font-size: 19px;
  }

  .footer-inner {
    grid-template-columns: 1fr;
    gap: 28px;
    padding: 36px 16px 24px;
  }

  .page-header {
    padding: 16px 0 24px;
    margin-bottom: 28px;
  }

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

  .section-heading {
    gap: 12px;
  }

  .section-heading .section-number {
    font-size: 1.75rem;
    min-width: 44px;
  }

  .section-title {
    font-size: 20px;
  }

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

  .hero-lead {
    font-size: 14px;
  }

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

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

  .hero-tags {
    gap: 8px;
  }

  .hero-tags .tag-link {
    font-size: 12px;
    padding: 5px 12px;
  }

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

  .cover-card h3 {
    font-size: 14px;
    padding: 10px 10px 0;
  }

  .cover-tag {
    font-size: 11px;
    margin: 6px 10px 0;
  }

  .cover-desc {
    font-size: 12px;
    padding: 6px 10px 12px;
  }

  .update-item {
    flex-direction: row;
  }

  .update-thumb {
    width: 48px;
    height: 64px;
  }

  .update-title {
    font-size: 14px;
  }

  .update-desc {
    font-size: 12px;
  }

  .ranking-item {
    gap: 10px;
  }

  .ranking-number {
    font-size: 1.25rem;
    width: 32px;
  }

  .ranking-thumb {
    width: 40px;
    height: 54px;
  }

  .ranking-title {
    font-size: 14px;
  }

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

  .genre-card-body {
    padding: 10px;
  }

  .genre-card-title {
    font-size: 14px;
  }

  .genre-card-desc {
    font-size: 12px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }

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

  .updates-aside {
    grid-template-columns: 1fr;
  }

  .editor-pick-content {
    padding: 24px;
  }

  .editor-pick-content h2 {
    font-size: 20px;
  }

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

  .rank-status {
    display: none;
  }

  .filter-sidebar {
    flex-direction: column;
  }

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

  .filter-tags li {
    margin-bottom: 0;
  }

  .filter-link {
    padding: 6px 12px;
    font-size: 13px;
  }

  .guide-directory {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
  }

  .guide-directory li {
    margin-bottom: 0;
  }

  .guide-directory a {
    padding: 6px 12px;
    font-size: 13px;
  }

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

  .column-name {
    min-width: 0;
  }

  .error-help {
    flex-direction: column;
    align-items: center;
  }
}