/* ==========================================================================
   韩漫漫画 · 全站样式表
   结构：base / layout / components / pages / responsive
   ========================================================================== */

/* --------------------------------------------------------------------------
   base：变量、重置、排版基础
   -------------------------------------------------------------------------- */
:root {
  --bg-page: #f6f8f9;
  --bg-block: #ffffff;
  --text-main: #1f2a2e;
  --text-sub: #5b6b70;
  --accent: #0f8b8d;
  --accent-soft: #e6f3f3;
  --line: #dde5e6;
  --warn: #b7791f;
  --radius: 6px;
  --radius-sm: 4px;
  --shadow-card: 0 1px 2px rgba(31, 42, 46, 0.05);
  --shadow-hover: 0 6px 16px rgba(15, 139, 141, 0.12);
  --container: 1120px;
  --gap: 24px;
  --font-stack: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei",
    "Source Han Sans SC", "Noto Sans CJK SC", "WenQuanYi Micro Hei",
    system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
}

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

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

body {
  margin: 0;
  padding: 0;
  background-color: var(--bg-page);
  color: var(--text-main);
  font-family: var(--font-stack);
  font-size: 15px;
  line-height: 1.75;
  font-variant-numeric: tabular-nums;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
  margin: 0 0 10px;
  color: var(--text-main);
  font-weight: 600;
  line-height: 1.4;
}

p {
  margin: 0 0 12px;
}

ul, ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: color 0.18s ease, border-color 0.18s ease;
}

a:hover,
a:focus-visible {
  color: #0b6f71;
  text-decoration: underline;
  text-underline-offset: 3px;
}

a:focus-visible,
button:focus-visible,
summary:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

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

figure {
  margin: 0;
}

button {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
  cursor: pointer;
}

time {
  font-variant-numeric: tabular-nums;
}

/* --------------------------------------------------------------------------
   layout：全站骨架（页头 / 导航 / 主容器 / 面包屑 / 页脚）
   -------------------------------------------------------------------------- */

.site-body {
  min-height: 100vh;
  background-color: var(--bg-page);
  color: var(--text-main);
  font-family: var(--font-stack);
}

/* 顶部事实条 */
.fact-bar {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 6px 16px;
  max-width: var(--container);
  margin: 0 auto;
  padding: 8px 20px;
  color: var(--text-sub);
  font-size: 13px;
}

.fact-bar__position,
.fact-bar__page {
  margin: 0;
}

.fact-bar__page {
  color: var(--accent);
}

/* 页头 */
.site-header {
  display: grid;
  grid-template-columns: minmax(200px, 1fr) auto minmax(180px, 1fr);
  grid-template-areas: "brand nav quick";
  align-items: center;
  gap: 12px 24px;
  max-width: var(--container);
  margin: 0 auto;
  padding: 14px 20px;
  background-color: var(--bg-block);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.header-brand {
  grid-area: brand;
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}

.brand-link {
  color: var(--text-main);
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 0;
}

.brand-link:hover,
.brand-link:focus-visible {
  color: var(--accent);
  text-decoration: none;
}

.brand-slogan {
  margin: 0;
  color: var(--text-sub);
  font-size: 12.5px;
}

/* 导航 */
.site-nav {
  grid-area: nav;
  min-width: 0;
}

.nav-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 4px 18px;
}

.nav-list li {
  display: block;
}

.nav-list a {
  display: inline-block;
  padding: 6px 2px;
  color: var(--text-main);
  font-size: 14.5px;
  border-bottom: 2px solid transparent;
}

.nav-list a:hover,
.nav-list a:focus-visible {
  color: var(--accent);
  text-decoration: none;
}

.nav-list a.is-current {
  color: var(--accent);
  font-weight: 600;
  border-bottom-color: var(--accent);
}

/* 移动端菜单按钮 */
.nav-toggle {
  grid-area: toggle;
  display: none;
  align-items: center;
  gap: 6px;
  min-height: 44px;
  padding: 8px 12px;
  background-color: var(--bg-block);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  color: var(--text-main);
  font-size: 14px;
}

.nav-toggle__icon {
  display: inline-block;
  width: 16px;
  height: 2px;
  background-color: var(--text-main);
  box-shadow: 0 -5px 0 var(--text-main), 0 5px 0 var(--text-main);
}

/* 题材快捷入口 */
.header-quick {
  grid-area: quick;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
  min-width: 0;
}

.header-quick__label {
  color: var(--text-sub);
  font-size: 12.5px;
  white-space: nowrap;
}

.quick-list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.quick-list a {
  display: inline-block;
  padding: 4px 10px;
  background-color: var(--accent-soft);
  border-radius: var(--radius-sm);
  color: var(--accent);
  font-size: 12.5px;
}

.quick-list a:hover,
.quick-list a:focus-visible {
  background-color: var(--accent);
  color: #ffffff;
  text-decoration: none;
}

/* 主内容容器 */
.site-main {
  display: block;
  max-width: var(--container);
  margin: 0 auto;
  padding: 24px 20px 40px;
}

.home-main,
.inner-main {
  display: block;
}

/* 面包屑 */
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  margin-bottom: 16px;
  color: var(--text-sub);
  font-size: 13px;
}

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

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

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

.breadcrumb-current {
  color: var(--text-main);
}

/* 内页页面标题区 */
.page-header {
  margin-bottom: 28px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
}

.page-title {
  margin: 0 0 10px;
  font-size: 34px;
  font-weight: 700;
  line-height: 1.35;
  color: var(--text-main);
}

.page-description {
  margin: 0;
  max-width: 820px;
  color: var(--text-sub);
  font-size: 15px;
}

/* 页脚 */
.site-footer {
  margin-top: 40px;
  background-color: var(--bg-block);
  border-top: 1px solid var(--line);
}

.footer-groups {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px 32px;
  max-width: var(--container);
  margin: 0 auto;
  padding: 32px 20px 24px;
}

.footer-group__title {
  margin: 0 0 12px;
  color: var(--text-main);
  font-size: 15px;
  font-weight: 600;
}

.footer-group ul {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer-group a {
  color: var(--text-sub);
  font-size: 14px;
}

.footer-group a:hover,
.footer-group a:focus-visible {
  color: var(--accent);
}

.footer-bottom {
  max-width: var(--container);
  margin: 0 auto;
  padding: 18px 20px 28px;
  border-top: 1px solid var(--line);
  color: var(--text-sub);
  font-size: 13px;
}

.footer-about {
  margin: 0 0 6px;
}

.footer-copyright {
  margin: 0;
}

/* --------------------------------------------------------------------------
   components：跨页面复用的模块
   -------------------------------------------------------------------------- */

/* 通用区块标题与导语 */
.section-title {
  margin: 0 0 8px;
  font-size: 22px;
}

.section-intro,
.section-lead {
  margin: 0 0 18px;
  max-width: 880px;
  color: var(--text-sub);
  font-size: 14.5px;
}

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

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

/* 作品条目封面卡（首页 / 题材分类页共用） */
.cover-card {
  min-width: 0;
}

.cover-card__link {
  display: flex;
  flex-direction: column;
  height: 100%;
  padding: 10px;
  background-color: var(--bg-block);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  color: var(--text-main);
  transition: border-color 0.18s ease, transform 0.18s ease, box-shadow 0.18s ease;
}

.cover-card__link:hover,
.cover-card__link:focus-visible {
  border-color: var(--accent);
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
  text-decoration: none;
}

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

.cover-card__title {
  margin: 10px 0 6px;
  font-size: 14px;
  font-weight: 600;
  line-height: 1.5;
}

.cover-card__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  margin: 0;
  font-size: 12.5px;
}

/* 题材标签与状态标记 */
.tag {
  display: inline-block;
  padding: 1px 8px;
  background-color: var(--accent-soft);
  border-radius: 999px;
  color: var(--accent);
  font-size: 12px;
  line-height: 1.7;
}

.tag--urban { background-color: var(--accent-soft); color: var(--accent); }
.tag--mystery { background-color: #eef0f6; color: #4a5578; }
.tag--school { background-color: #f1f6ec; color: #4c7a3a; }
.tag--fantasy { background-color: #f6f0f7; color: #7a4a86; }

.status {
  display: inline-block;
  color: var(--text-sub);
  font-size: 12px;
}

.status--ongoing { color: var(--accent); }
.status--completed { color: var(--text-sub); }
.status--hiatus { color: var(--warn); }

/* 位次列表（首页简报版） */
.ranking-list {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.ranking-list li {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 7px 4px;
  border-bottom: 1px dashed var(--line);
  font-size: 14px;
}

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

.rank-num {
  flex: 0 0 26px;
  color: var(--accent);
  font-weight: 700;
  font-size: 13px;
}

.rank-tag {
  margin-left: auto;
  color: var(--text-sub);
  font-size: 12.5px;
  white-space: nowrap;
}

/* 字段对照（首页摘要版） */
.field-columns {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.5fr);
  gap: 20px 32px;
}

.field-columns__title {
  margin: 0 0 10px;
  font-size: 15px;
  color: var(--text-sub);
  font-weight: 600;
}

.field-name-list,
.field-meaning-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.field-name-list li {
  padding: 6px 10px;
  background-color: var(--accent-soft);
  border-radius: var(--radius-sm);
  color: var(--accent);
  font-size: 13.5px;
}

.field-meaning-list li {
  padding: 6px 0;
  border-bottom: 1px dashed var(--line);
  color: var(--text-sub);
  font-size: 13.5px;
}

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

/* 站内栏目索引 */
.section-index {
  margin-top: 32px;
  padding: 24px;
  background-color: var(--bg-block);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.index-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 16px;
}

.index-item {
  padding: 14px;
  background-color: var(--bg-page);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  min-width: 0;
}

.index-item h3 {
  margin: 0 0 6px;
  font-size: 15px;
}

.index-item p {
  margin: 0;
  color: var(--text-sub);
  font-size: 13px;
}

/* 内页左右布局（正文在前，aside 在后） */
.page-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 280px;
  gap: 32px;
  align-items: start;
}

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

.ranking-aside {
  position: sticky;
  top: 20px;
  padding: 18px;
  background-color: var(--bg-block);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.aside-title {
  margin: 0 0 10px;
  font-size: 16px;
}

.ranking-aside p {
  margin: 0 0 12px;
  color: var(--text-sub);
  font-size: 13.5px;
}

.aside-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 0;
  margin: 0 0 14px;
}

.aside-list li {
  padding-left: 16px;
  position: relative;
  color: var(--text-sub);
  font-size: 13.5px;
}

.aside-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 6px;
  height: 6px;
  background-color: var(--accent);
  border-radius: 50%;
}

.aside-link {
  margin: 0;
  font-size: 13.5px;
}

/* 内页通用小节标题 */
.subsection-title,
.column-title {
  margin: 0 0 10px;
  font-size: 16px;
  color: var(--text-main);
}

/* --------------------------------------------------------------------------
   pages：各页面专属模块
   -------------------------------------------------------------------------- */

/* 首页 · 首屏定位区 */
.hero-section {
  display: grid;
  grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  gap: 32px;
  align-items: center;
  padding: 28px 24px;
  background-color: var(--bg-block);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  margin-bottom: 32px;
}

.hero-copy {
  min-width: 0;
}

.hero-title {
  margin: 0 0 14px;
  font-size: 34px;
  font-weight: 700;
  line-height: 1.35;
}

.hero-lead {
  margin: 0 0 18px;
  color: var(--text-sub);
  font-size: 15px;
}

.hero-paths {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.hero-paths a {
  display: inline-block;
  min-height: 44px;
  padding: 10px 16px;
  background-color: var(--accent-soft);
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  color: var(--accent);
  font-size: 14px;
  font-weight: 500;
  line-height: 1.6;
}

.hero-paths a:hover,
.hero-paths a:focus-visible {
  background-color: var(--accent);
  color: #ffffff;
  text-decoration: none;
}

.hero-figure {
  margin: 0;
  min-width: 0;
}

.hero-figure img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: var(--radius);
}

.hero-figure figcaption {
  margin-top: 8px;
  color: var(--text-sub);
  font-size: 12.5px;
}

/* 首页 · 题材方向总览 */
.genre-overview {
  margin-bottom: 32px;
}

.genre-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.genre-cell {
  padding: 16px;
  background-color: var(--bg-block);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  min-width: 0;
}

.genre-cell__name {
  margin: 0 0 8px;
  font-size: 16px;
}

.genre-cell__scope {
  margin: 0 0 10px;
  color: var(--text-sub);
  font-size: 13.5px;
}

.genre-cell__count {
  margin: 0;
  color: var(--accent);
  font-size: 12.5px;
}

/* 首页 · 封面索引速览 */
.cover-index {
  margin-bottom: 32px;
}

.tag-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 16px;
}

.tag-filter__item {
  min-height: 36px;
  padding: 6px 14px;
  background-color: var(--bg-block);
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--text-sub);
  font-size: 13.5px;
  transition: border-color 0.18s ease, color 0.18s ease, background-color 0.18s ease;
}

.tag-filter__item:hover,
.tag-filter__item:focus-visible {
  border-color: var(--accent);
  color: var(--accent);
}

.tag-filter__item.is-active {
  border-color: var(--accent);
  background-color: var(--accent-soft);
  color: var(--accent);
  font-weight: 600;
}

.cover-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.cover-grid .cover-card__link {
  padding: 10px;
}

.cover-grid .cover-card img {
  aspect-ratio: 3 / 4;
  border-radius: var(--radius-sm);
}

/* 首页 · 更新与位次并列区 */
.dual-column {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 24px;
  margin-bottom: 32px;
}

.update-brief,
.ranking-brief {
  padding: 20px;
  background-color: var(--bg-block);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  min-width: 0;
}

.update-group {
  margin-bottom: 16px;
}

.update-group:last-of-type {
  margin-bottom: 0;
}

.update-group__date {
  margin: 0 0 8px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--line);
  color: var(--text-main);
  font-size: 14.5px;
  font-weight: 600;
}

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

.update-list li {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 5px 0;
  font-size: 14px;
}

.update-list a {
  color: var(--text-main);
}

.update-list a:hover,
.update-list a:focus-visible {
  color: var(--accent);
}

.update-list__tag,
.update-list__status {
  margin-left: auto;
  color: var(--text-sub);
  font-size: 12.5px;
  white-space: nowrap;
}

/* 首页 · 条目字段口径摘要 */
.field-brief {
  margin-bottom: 32px;
  padding: 20px;
  background-color: var(--bg-block);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

/* 题材分类页 */
.genre-overview .genre-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.genre-column {
  padding: 16px;
  background-color: var(--bg-block);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  min-width: 0;
}

.genre-column__name {
  margin: 0 0 8px;
  font-size: 16px;
}

.genre-column__scope,
.genre-column__setting {
  margin: 0 0 8px;
  color: var(--text-sub);
  font-size: 13.5px;
}

.genre-entries {
  margin-top: 32px;
}

.genre-group {
  padding: 20px 0;
  border-top: 1px solid var(--line);
}

.genre-group:first-of-type {
  border-top: none;
  padding-top: 0;
}

.genre-group__name {
  margin: 0 0 14px;
  font-size: 17px;
}

.cover-list {
  display: grid;
  gap: 16px;
}

.cover-list--three {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.cover-list .cover-card__link {
  padding: 10px;
}

.cover-list .cover-card__media {
  margin: 0 0 10px;
  border-radius: var(--radius-sm);
  overflow: hidden;
}

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

.cover-card__name {
  display: block;
  margin-bottom: 4px;
  color: var(--text-main);
  font-size: 14px;
  font-weight: 600;
  line-height: 1.5;
}

.cover-card__tag {
  display: inline-block;
  padding: 1px 8px;
  background-color: var(--accent-soft);
  border-radius: 999px;
  color: var(--accent);
  font-size: 12px;
}

.genre-advice {
  margin-top: 32px;
}

.advice-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.advice-item {
  padding: 16px;
  background-color: var(--bg-block);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  min-width: 0;
}

.advice-item__title {
  margin: 0 0 8px;
  font-size: 15px;
}

.advice-item__text {
  margin: 0;
  color: var(--text-sub);
  font-size: 13.5px;
}

.advice-footnote {
  margin: 18px 0 0;
  color: var(--text-sub);
  font-size: 13.5px;
}

/* 最近更新页 */
.updates-list {
  margin-bottom: 32px;
}

.update-group {
  padding: 0 0 8px;
}

.update-rows {
  display: flex;
  flex-direction: column;
  gap: 0;
  background-color: var(--bg-block);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

.update-row {
  display: grid;
  grid-template-columns: 72px minmax(0, 1fr);
  gap: 16px;
  align-items: center;
  padding: 12px 16px;
  border-bottom: 1px solid var(--line);
  transition: background-color 0.18s ease;
}

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

.update-row:hover,
.update-row:focus-within {
  background-color: var(--accent-soft);
}

.update-thumb {
  margin: 0;
  width: 72px;
  height: 96px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  background-color: var(--bg-page);
}

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

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

.update-row__name {
  display: inline-block;
  margin-bottom: 4px;
  color: var(--text-main);
  font-size: 15px;
  font-weight: 600;
}

.update-row__name:hover,
.update-row__name:focus-visible {
  color: var(--accent);
}

.update-row__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0;
  color: var(--text-sub);
  font-size: 13px;
}

.update-rules {
  margin-bottom: 32px;
}

.rules-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.rule-card {
  padding: 16px;
  background-color: var(--bg-block);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  min-width: 0;
}

.rule-card__title {
  margin: 0 0 8px;
  font-size: 15px;
}

.rule-card p {
  margin: 0;
  color: var(--text-sub);
  font-size: 13.5px;
}

.update-path {
  margin-bottom: 8px;
}

.path-steps {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.path-step {
  display: flex;
  gap: 14px;
  padding: 16px;
  background-color: var(--bg-block);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  min-width: 0;
}

.path-step__num {
  flex: 0 0 32px;
  height: 32px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background-color: var(--accent-soft);
  border-radius: 50%;
  color: var(--accent);
  font-weight: 700;
  font-size: 14px;
}

.path-step__body {
  min-width: 0;
}

.path-step__title {
  margin: 0 0 4px;
  font-size: 15px;
}

.path-step__body p {
  margin: 0;
  color: var(--text-sub);
  font-size: 13.5px;
}

.update-path__note {
  margin: 16px 0 0;
  color: var(--text-sub);
  font-size: 13.5px;
}

/* 人气位次页 */
.ranking-list-section,
.ranking-basis-section,
.ranking-combo-section {
  margin-bottom: 32px;
}

.ranking-list-section .ranking-list {
  background-color: var(--bg-block);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

.ranking-item {
  display: grid;
  grid-template-columns: 40px 64px minmax(0, 1fr);
  gap: 16px;
  align-items: center;
  padding: 12px 16px;
  border-bottom: 1px solid var(--line);
  transition: background-color 0.18s ease;
}

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

.ranking-item:hover,
.ranking-item:focus-within {
  background-color: var(--accent-soft);
}

.rank-number {
  color: var(--accent);
  font-size: 18px;
  font-weight: 700;
  text-align: center;
}

.rank-cover {
  margin: 0;
  width: 64px;
  height: 84px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  background-color: var(--bg-page);
}

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

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

.rank-title {
  display: block;
  margin-bottom: 4px;
  color: var(--text-main);
  font-size: 15px;
  font-weight: 600;
}

.rank-title:hover,
.rank-title:focus-visible {
  color: var(--accent);
}

.rank-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0 0 4px;
  font-size: 13px;
}

.rank-genre {
  color: var(--accent);
}

.rank-status {
  color: var(--text-sub);
}

.rank-note {
  margin: 0;
  color: var(--text-sub);
  font-size: 13px;
}

.basis-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px 32px;
}

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

.basis-column p {
  margin: 0 0 10px;
  color: var(--text-sub);
  font-size: 13.5px;
}

.basis-points {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.basis-points li {
  position: relative;
  padding-left: 16px;
  color: var(--text-sub);
  font-size: 13.5px;
}

.basis-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 6px;
  height: 6px;
  background-color: var(--accent);
  border-radius: 50%;
}

.basis-note,
.combo-note {
  margin: 16px 0 0;
  color: var(--text-sub);
  font-size: 13.5px;
}

.combo-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.combo-card {
  padding: 16px;
  background-color: var(--bg-block);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  min-width: 0;
}

.combo-title {
  margin: 0 0 8px;
  font-size: 15px;
}

.combo-card p {
  margin: 0;
  color: var(--text-sub);
  font-size: 13.5px;
}

/* 条目字段说明页 */
.field-visual,
.field-table-section,
.scope-section,
.misread-section,
.next-section {
  margin-bottom: 32px;
}

.field-figure {
  margin: 0;
  max-width: 720px;
}

.field-figure img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-radius: var(--radius);
  border: 1px solid var(--line);
}

.field-figure figcaption {
  margin-top: 8px;
  color: var(--text-sub);
  font-size: 13px;
}

.field-table {
  width: 100%;
  border-collapse: collapse;
  background-color: var(--bg-block);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  font-size: 14px;
}

.field-table__caption {
  padding: 12px 16px;
  text-align: left;
  color: var(--text-sub);
  font-size: 13px;
  caption-side: top;
}

.field-table th,
.field-table td {
  padding: 12px 16px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--line);
}

.field-table thead th {
  background-color: var(--accent-soft);
  color: var(--accent);
  font-weight: 600;
  font-size: 13.5px;
}

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

.field-table tbody tr:hover {
  background-color: var(--bg-page);
}

.field-name {
  width: 160px;
  color: var(--text-main);
  font-weight: 600;
}

.scope-columns {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px 32px;
}

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

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

.scope-list li {
  position: relative;
  padding-left: 16px;
  color: var(--text-sub);
  font-size: 13.5px;
}

.scope-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 6px;
  height: 6px;
  background-color: var(--accent);
  border-radius: 50%;
}

.misread-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.misread-card {
  padding: 16px;
  background-color: var(--bg-block);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  min-width: 0;
}

.misread-card__title {
  margin: 0 0 8px;
  font-size: 15px;
}

.misread-card p {
  margin: 0;
  color: var(--text-sub);
  font-size: 13.5px;
}

.next-list {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.next-item {
  min-width: 0;
}

.next-item a {
  display: block;
  min-height: 44px;
  padding: 14px 16px;
  background-color: var(--bg-block);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--text-main);
  font-size: 14px;
  font-weight: 500;
  transition: border-color 0.18s ease, color 0.18s ease;
}

.next-item a:hover,
.next-item a:focus-visible {
  border-color: var(--accent);
  color: var(--accent);
  text-decoration: none;
}

/* 查阅路径指引页 */
.guide-steps,
.guide-checklist,
.guide-pitfalls,
.guide-faq {
  margin-bottom: 32px;
}

.guide-flow {
  margin: 0 0 20px;
  max-width: 760px;
}

.guide-flow img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-radius: var(--radius);
  border: 1px solid var(--line);
}

.guide-flow figcaption {
  margin-top: 8px;
  color: var(--text-sub);
  font-size: 13px;
}

.step-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.step-item {
  display: flex;
  gap: 16px;
  padding: 18px;
  background-color: var(--bg-block);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  min-width: 0;
}

.step-index {
  flex: 0 0 36px;
  height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background-color: var(--accent);
  border-radius: 50%;
  color: #ffffff;
  font-size: 15px;
  font-weight: 700;
}

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

.step-title {
  margin: 0 0 6px;
  font-size: 16px;
}

.step-body p {
  margin: 0 0 8px;
  color: var(--text-sub);
  font-size: 14px;
}

.step-body p:last-child {
  margin-bottom: 0;
}

.check-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.check-col {
  padding: 16px;
  background-color: var(--bg-block);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  min-width: 0;
}

.check-col__title {
  margin: 0 0 10px;
  font-size: 15px;
}

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

.check-list li {
  position: relative;
  padding-left: 16px;
  color: var(--text-sub);
  font-size: 13.5px;
}

.check-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 6px;
  height: 6px;
  background-color: var(--accent);
  border-radius: 50%;
}

.pitfall-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin: 0;
}

.pitfall-item {
  padding: 16px;
  background-color: var(--bg-block);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  min-width: 0;
}

.pitfall-item dt {
  margin-bottom: 6px;
  color: var(--warn);
  font-size: 14.5px;
  font-weight: 600;
}

.pitfall-item dd {
  margin: 0;
  color: var(--text-sub);
  font-size: 13.5px;
}

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

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

.faq-item summary {
  padding: 14px 16px;
  cursor: pointer;
  color: var(--text-main);
  font-size: 14.5px;
  font-weight: 600;
  list-style: none;
  position: relative;
  padding-right: 40px;
}

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

.faq-item summary::after {
  content: "+";
  position: absolute;
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--accent);
  font-size: 18px;
  font-weight: 700;
  line-height: 1;
}

.faq-item[open] summary::after {
  content: "−";
}

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

.faq-item p {
  margin: 0;
  padding: 0 16px 16px;
  color: var(--text-sub);
  font-size: 13.5px;
}

.guide-related {
  margin-bottom: 8px;
}

.related-list {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 12px;
}

.related-list li {
  min-width: 0;
}

.related-list a {
  display: block;
  min-height: 44px;
  padding: 12px 14px;
  background-color: var(--bg-block);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--text-main);
  font-size: 13.5px;
  transition: border-color 0.18s ease, color 0.18s ease;
}

.related-list a:hover,
.related-list a:focus-visible {
  border-color: var(--accent);
  color: var(--accent);
  text-decoration: none;
}

/* 404 页 */
.error-main {
  display: block;
  min-height: 60vh;
}

.error-panel {
  padding: 40px 24px;
  background-color: var(--bg-block);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  margin-bottom: 24px;
  text-align: center;
}

.error-code {
  margin: 0 0 8px;
  color: var(--accent);
  font-size: 48px;
  font-weight: 700;
  line-height: 1;
}

.error-panel h1 {
  margin: 0 0 12px;
  font-size: 26px;
}

.error-text {
  margin: 0 auto 20px;
  max-width: 560px;
  color: var(--text-sub);
  font-size: 14.5px;
}

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

.error-btn {
  display: inline-block;
  min-height: 44px;
  padding: 11px 22px;
  background-color: var(--accent);
  border: 1px solid var(--accent);
  border-radius: var(--radius-sm);
  color: #ffffff;
  font-size: 14px;
  font-weight: 500;
}

.error-btn:hover,
.error-btn:focus-visible {
  background-color: #0b6f71;
  border-color: #0b6f71;
  color: #ffffff;
  text-decoration: none;
}

.error-btn--ghost {
  background-color: transparent;
  color: var(--accent);
}

.error-btn--ghost:hover,
.error-btn--ghost:focus-visible {
  background-color: var(--accent-soft);
  color: var(--accent);
}

.error-extra {
  padding: 24px;
  background-color: var(--bg-block);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.error-extra h2 {
  margin: 0 0 14px;
  font-size: 18px;
}

.error-links {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.error-links a {
  display: block;
  min-height: 44px;
  padding: 12px 14px;
  background-color: var(--bg-page);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  color: var(--text-main);
  font-size: 14px;
}

.error-links a:hover,
.error-links a:focus-visible {
  border-color: var(--accent);
  color: var(--accent);
  text-decoration: none;
}

/* --------------------------------------------------------------------------
   responsive：断点 1024px / 720px
   -------------------------------------------------------------------------- */
@media (max-width: 1024px) {
  .site-header {
    grid-template-columns: minmax(0, 1fr) auto;
    grid-template-areas:
      "brand toggle"
      "nav nav"
      "quick quick";
    align-items: center;
    gap: 10px 16px;
  }

  .nav-toggle {
    grid-area: toggle;
    display: inline-flex;
    justify-self: end;
  }

  .site-nav {
    grid-area: nav;
  }

  .nav-list {
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 6px 0;
    border-top: 1px solid var(--line);
  }

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

  .nav-list a {
    display: block;
    min-height: 44px;
    padding: 10px 4px;
    border-bottom: 1px solid var(--line);
  }

  .nav-list a.is-current {
    border-bottom-color: var(--accent);
  }

  .header-quick {
    grid-area: quick;
    justify-content: flex-start;
    flex-wrap: wrap;
  }

  .hero-section {
    grid-template-columns: minmax(0, 1fr);
    gap: 24px;
  }

  .hero-title {
    font-size: 30px;
  }

  .genre-grid,
  .advice-grid,
  .rules-grid,
  .check-grid,
  .misread-grid,
  .next-list,
  .related-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .cover-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .index-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .dual-column {
    grid-template-columns: minmax(0, 1fr);
  }

  .page-layout {
    grid-template-columns: minmax(0, 1fr);
  }

  .ranking-aside {
    position: static;
  }

  .pitfall-list,
  .error-links {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 720px) {
  body {
    font-size: 14.5px;
  }

  .fact-bar {
    padding: 8px 16px;
    font-size: 12.5px;
  }

  .site-header {
    padding: 12px 16px;
    border-radius: 0;
    border-left: none;
    border-right: none;
  }

  .brand-link {
    font-size: 18px;
  }

  .site-main {
    padding: 18px 16px 32px;
  }

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

  .hero-section {
    padding: 20px 16px;
    border-radius: 0;
    border-left: none;
    border-right: none;
  }

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

  .hero-paths a {
    flex: 1 1 100%;
    text-align: center;
  }

  .section-title {
    font-size: 19px;
  }

  .genre-grid,
  .advice-grid,
  .rules-grid,
  .check-grid,
  .misread-grid,
  .next-list,
  .related-list,
  .basis-grid,
  .combo-grid,
  .scope-columns,
  .path-steps,
  .pitfall-list,
  .error-links,
  .index-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .cover-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
  }

  .cover-list--three {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
  }

  .field-columns {
    grid-template-columns: minmax(0, 1fr);
    gap: 16px;
  }

  .update-row {
    grid-template-columns: 60px minmax(0, 1fr);
    gap: 12px;
    padding: 12px;
  }

  .update-thumb {
    width: 60px;
    height: 80px;
  }

  .ranking-item {
    grid-template-columns: 32px 56px minmax(0, 1fr);
    gap: 12px;
    padding: 12px;
  }

  .rank-cover {
    width: 56px;
    height: 74px;
  }

  .rank-number {
    font-size: 16px;
  }

  .field-table th,
  .field-table td {
    padding: 10px 12px;
  }

  .field-name {
    width: auto;
  }

  .footer-groups {
    grid-template-columns: minmax(0, 1fr);
    gap: 20px;
    padding: 24px 16px 18px;
  }

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

  .error-panel {
    padding: 28px 16px;
  }

  .error-code {
    font-size: 40px;
  }

  .error-panel h1 {
    font-size: 22px;
  }

  .step-item {
    padding: 14px;
    gap: 12px;
  }
}

@media (max-width: 420px) {
  .cover-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .cover-list--three {
    grid-template-columns: minmax(0, 1fr);
  }
}

/* 动效增强：仅在支持动画的环境下轻微淡入，不影响初始可见 */
@media (prefers-reduced-motion: no-preference) {
  .cover-card__link,
  .genre-cell,
  .advice-item,
  .rule-card,
  .misread-card,
  .combo-card,
  .check-col,
  .pitfall-item,
  .step-item,
  .path-step,
  .index-item {
    transition: transform 0.18s ease, box-shadow 0.18s ease,
      border-color 0.18s ease, background-color 0.18s ease;
  }
}