/* ==========================================================================
   香蕉漫画 leqbs.cn — 全站样式
   分组：base / layout / components / pages / responsive
   ========================================================================== */

/* --------------------------------------------------------------------------
   base：变量、重置、排版基础
   -------------------------------------------------------------------------- */
:root {
  --paper: #f7f5f0;
  --paper-deep: #efeae1;
  --ink: #1f1d1a;
  --ink-soft: #4a453d;
  --ink-mute: #736c60;
  --accent: #8a6a3b;
  --accent-soft: #b99a68;
  --chart: #3f5d52;
  --rule: #d9d2c5;
  --rule-strong: #c2b8a5;
  --card: #fffdf9;
  --serif: "Songti SC", "SimSun", "Noto Serif CJK SC", "Source Han Serif SC", Georgia, serif;
  --sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --narrow: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;
  --wrap: 1140px;
  --wrap-narrow: 880px;
  --gap: 28px;
  --radius: 6px;
}

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

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

body {
  margin: 0;
  background-color: var(--paper);
  color: var(--ink);
  font-family: var(--serif);
  font-size: 16px;
  line-height: 1.75;
  text-rendering: optimizeLegibility;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  margin: 0;
  font-family: var(--sans);
  font-weight: 700;
  line-height: 1.3;
  color: var(--ink);
}

p {
  margin: 0;
}

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

dl,
dd,
dt {
  margin: 0;
}

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

a:hover,
a:focus-visible {
  color: var(--chart);
  text-decoration: underline;
  text-underline-offset: 3px;
}

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

img {
  display: block;
  max-width: 100%;
  height: auto;
  background-color: var(--paper-deep);
}

figure {
  margin: 0;
}

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

button {
  font: inherit;
  color: inherit;
}

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

/* --------------------------------------------------------------------------
   layout：全站骨架（顶部事实条 / 页头 / 导航 / 主容器 / 页脚）
   -------------------------------------------------------------------------- */
.site-body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  background-color: var(--paper);
  color: var(--ink);
  font-family: var(--serif);
  font-size: 16px;
  line-height: 1.75;
}

/* 顶部事实条（仅首页） */
.site-factbar {
  margin: 0;
  padding: 9px 20px;
  background-color: var(--ink);
  color: #efe8db;
  font-family: var(--narrow);
  font-size: 13px;
  line-height: 1.6;
  text-align: center;
}

/* 页头 */
.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  background-color: rgba(247, 245, 240, 0.96);
  border-bottom: 1px solid var(--rule);
  backdrop-filter: saturate(140%) blur(6px);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  width: 100%;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 14px 20px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  flex: 0 0 auto;
}

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

.brand-mark {
  display: inline-block;
  width: 30px;
  height: 30px;
  border: 1px solid var(--accent);
  border-radius: 4px;
  background-color: var(--accent);
  box-shadow: inset 0 0 0 4px var(--paper);
}

.brand-name {
  font-family: var(--sans);
  font-size: 20px;
  font-weight: 700;
  line-height: 1.2;
}

/* 主导航 */
.site-nav {
  flex: 1 1 auto;
  display: flex;
  justify-content: flex-end;
}

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

.nav-list > li {
  display: block;
}

.nav-link {
  display: inline-block;
  padding: 9px 13px;
  border-radius: 4px;
  color: var(--ink-soft);
  font-family: var(--narrow);
  font-size: 15px;
  line-height: 1.4;
  white-space: nowrap;
  border-bottom: 2px solid transparent;
}

.nav-link:hover,
.nav-link:focus-visible {
  color: var(--accent);
  background-color: var(--paper-deep);
  text-decoration: none;
}

.nav-link.is-current {
  color: var(--accent);
  font-weight: 700;
  border-bottom-color: var(--accent);
}

/* 汉堡按钮：桌面隐藏 */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 0 10px;
  background-color: transparent;
  border: 1px solid var(--rule-strong);
  border-radius: 4px;
  cursor: pointer;
}

.nav-toggle-bar {
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--ink);
  border-radius: 1px;
}

/* 主内容容器 */
.site-main {
  flex: 1 0 auto;
  width: 100%;
}

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

.inner-main {
  padding-top: 22px;
}

/* 内页统一：面包屑 + 页面标题区 */
.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  padding: 4px 0 14px;
  font-family: var(--narrow);
  font-size: 13px;
  color: var(--ink-mute);
  border-bottom: 1px solid var(--rule);
}

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

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

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

.breadcrumb-current {
  color: var(--ink);
  font-weight: 600;
}

.page-header {
  padding: 30px 0 34px;
  border-bottom: 3px double var(--rule-strong);
  margin-bottom: 40px;
}

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

.page-description,
.page-summary {
  max-width: 800px;
  margin-top: 14px;
  color: var(--ink-soft);
  font-size: 16px;
  line-height: 1.8;
}

.page-summary {
  padding-left: 14px;
  border-left: 3px solid var(--accent-soft);
  color: var(--ink-mute);
  font-size: 15px;
}

/* 页脚 */
.site-footer {
  margin-top: auto;
  background-color: var(--paper-deep);
  border-top: 1px solid var(--rule);
  color: var(--ink-soft);
  font-family: var(--narrow);
}

.footer-inner {
  display: grid;
  grid-template-columns: minmax(240px, 1.4fr) repeat(3, minmax(150px, 1fr));
  gap: 32px;
  width: 100%;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 44px 20px 32px;
}

.footer-name {
  font-family: var(--sans);
  font-size: 18px;
  font-weight: 700;
  color: var(--ink);
}

.footer-desc {
  margin-top: 10px;
  max-width: 320px;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--ink-mute);
}

.footer-group-title {
  font-size: 14px;
  font-weight: 700;
  color: var(--ink);
  letter-spacing: 0;
}

.footer-list {
  margin-top: 12px;
}

.footer-list > li + li {
  margin-top: 8px;
}

.footer-list a {
  display: inline-block;
  padding: 4px 0;
  min-height: 26px;
  color: var(--ink-soft);
  font-size: 14px;
}

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

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  width: 100%;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 18px 20px 28px;
  border-top: 1px solid var(--rule);
  font-size: 13px;
  color: var(--ink-mute);
}

.footer-copy {
  margin: 0;
}

.footer-quick {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 18px;
}

.footer-quick a {
  color: var(--ink-mute);
}

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

/* --------------------------------------------------------------------------
   components：通用区块、卡片、表格、FAQ、按钮
   -------------------------------------------------------------------------- */
.section {
  margin-bottom: 56px;
}

.section-head {
  margin-bottom: 22px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--rule);
}

.section-title {
  font-size: 22px;
  font-weight: 700;
  line-height: 1.35;
  color: var(--ink);
}

.section-desc,
.section-intro {
  max-width: 820px;
  margin-top: 10px;
  color: var(--ink-mute);
  font-size: 15px;
  line-height: 1.8;
}

.section-desc a,
.section-intro a {
  border-bottom: 1px solid var(--accent-soft);
}

/* 通用封面卡（首页封面墙 / 题材分类封面墙共用外壳） */
.cover-card {
  margin: 0;
}

.cover-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: var(--radius);
  border: 1px solid var(--rule);
  background-color: var(--paper-deep);
}

/* 通用按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 10px 20px;
  border: 1px solid var(--accent);
  border-radius: 4px;
  font-family: var(--narrow);
  font-size: 15px;
  line-height: 1.4;
  color: var(--accent);
  background-color: transparent;
}

.btn-primary {
  background-color: var(--accent);
  color: #fffdf9;
}

.btn-primary:hover,
.btn-primary:focus-visible {
  background-color: var(--chart);
  border-color: var(--chart);
  color: #fffdf9;
  text-decoration: none;
}

/* --------------------------------------------------------------------------
   pages：首页
   -------------------------------------------------------------------------- */

/* 首屏定位区 */
.hero-section {
  display: grid;
  grid-template-columns: minmax(520px, 1.15fr) minmax(300px, 0.85fr);
  gap: 40px;
  align-items: start;
  padding: 48px 0 44px;
  border-bottom: 3px double var(--rule-strong);
  margin-bottom: 52px;
}

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

.hero-kicker {
  display: inline-block;
  margin-bottom: 16px;
  padding: 4px 10px;
  border: 1px solid var(--rule-strong);
  border-radius: 3px;
  background-color: var(--paper-deep);
  font-family: var(--narrow);
  font-size: 13px;
  color: var(--accent);
}

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

.hero-summary {
  margin-top: 18px;
  max-width: 620px;
  color: var(--ink-soft);
  font-size: 16px;
  line-height: 1.85;
}

.hero-paths {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-top: 28px;
}

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

.hero-path-link {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-height: 44px;
  padding: 14px 14px 16px;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  background-color: var(--card);
  color: var(--ink);
}

.hero-path-link:hover,
.hero-path-link:focus-visible {
  border-color: var(--accent);
  background-color: #fff;
  text-decoration: none;
  color: var(--ink);
}

.hero-path-label {
  font-family: var(--sans);
  font-size: 16px;
  font-weight: 700;
  color: var(--accent);
}

.hero-path-desc {
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--ink-mute);
}

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

.hero-figure img {
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border: 1px solid var(--rule-strong);
  border-radius: var(--radius);
}

.hero-caption {
  margin-top: 10px;
  padding-left: 10px;
  border-left: 2px solid var(--accent-soft);
  font-family: var(--narrow);
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink-mute);
}

.hero-thumbs {
  grid-column: 2 / 3;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-top: 20px;
}

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

.hero-thumb img {
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
}

.hero-thumb figcaption {
  margin-top: 8px;
  font-family: var(--narrow);
  font-size: 13px;
  line-height: 1.6;
  color: var(--ink-mute);
}

/* 题材分类总目录（首页四栏） */
.category-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 20px;
}

.category-item {
  min-width: 0;
  padding: 20px 18px 22px;
  border: 1px solid var(--rule);
  border-top: 3px solid var(--accent-soft);
  border-radius: var(--radius);
  background-color: var(--card);
}

.category-name {
  font-size: 17px;
  font-weight: 700;
  color: var(--ink);
}

.category-trait {
  margin-top: 10px;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--ink-soft);
}

.category-sample {
  margin-top: 12px;
  padding-top: 10px;
  border-top: 1px dashed var(--rule-strong);
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--accent);
}

.category-audience {
  margin-top: 10px;
  font-family: var(--narrow);
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink-mute);
}

/* 封面墙与最近更新并列区 */
.pair-layout {
  display: grid;
  grid-template-columns: minmax(520px, 1.35fr) minmax(280px, 0.65fr);
  gap: 40px;
  align-items: start;
}

.pair-covers {
  min-width: 0;
}

.pair-subtitle {
  font-size: 17px;
  font-weight: 700;
  color: var(--ink);
}

.pair-desc {
  margin-top: 8px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink-mute);
}

.cover-wall {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  grid-auto-rows: 130px;
  gap: 14px;
  margin-top: 18px;
}

.cover-wall .cover-card {
  display: flex;
  flex-direction: column;
  min-width: 0;
  overflow: hidden;
}

.cover-wall .cover-card-tall {
  grid-row: span 2;
}

.cover-wall .cover-card-wide {
  grid-column: span 2;
}

.cover-wall .cover-card figcaption {
  margin-top: 8px;
  font-family: var(--narrow);
  font-size: 13px;
  line-height: 1.5;
  color: var(--ink-mute);
}

.cover-wall .cover-card-tall figcaption,
.cover-wall .cover-card-wide figcaption {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

.pair-updates {
  min-width: 0;
  padding: 20px 20px 8px;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  background-color: var(--card);
}

.update-group {
  margin-top: 18px;
  padding-top: 14px;
  border-top: 1px solid var(--rule);
}

.update-group:first-of-type {
  margin-top: 14px;
}

.update-date {
  font-family: var(--narrow);
  font-size: 14px;
  font-weight: 700;
  color: var(--accent);
}

.update-list {
  margin-top: 8px;
}

.update-list > li + li {
  margin-top: 10px;
}

/* 首页更新行：日期 + 作品名 + 题材 + 说明 */
.update-row {
  display: grid;
  grid-template-columns: 58px minmax(0, 1fr);
  gap: 4px 10px;
  padding-bottom: 10px;
  border-bottom: 1px dashed var(--rule);
  font-size: 14px;
  line-height: 1.65;
}

.update-row:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.update-row .update-name {
  font-family: var(--sans);
  font-weight: 700;
  color: var(--ink);
}

.update-row .update-tag {
  grid-column: 2 / 3;
  font-family: var(--narrow);
  font-size: 12.5px;
  color: var(--chart);
}

.update-row .update-note {
  grid-column: 2 / 3;
  font-size: 13.5px;
  color: var(--ink-mute);
}

/* 人气榜单位次参考（首页） */
.rank-list {
  border-top: 1px solid var(--rule);
}

.rank-row {
  display: grid;
  grid-template-columns: 52px minmax(150px, 0.9fr) 96px minmax(0, 2fr);
  align-items: baseline;
  gap: 8px 16px;
  padding: 14px 10px;
  border-bottom: 1px solid var(--rule);
  transition: background-color 0.18s ease, box-shadow 0.18s ease;
}

.rank-row:hover {
  background-color: var(--card);
  box-shadow: inset 2px 0 0 var(--accent);
}

.rank-no {
  font-family: var(--sans);
  font-size: 18px;
  font-weight: 700;
  color: var(--accent);
}

.rank-name {
  font-family: var(--sans);
  font-size: 16px;
  font-weight: 700;
  color: var(--ink);
}

.rank-tag {
  font-family: var(--narrow);
  font-size: 13px;
  color: var(--chart);
}

.rank-note {
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-mute);
}

/* 条目字段口径与收录边界摘要 */
.fields-layout {
  display: grid;
  grid-template-columns: minmax(520px, 1.2fr) minmax(280px, 0.8fr);
  gap: 40px;
  align-items: start;
}

.fields-table-wrap,
.fields-boundary {
  min-width: 0;
}

.fields-subtitle {
  font-size: 17px;
  font-weight: 700;
  color: var(--ink);
  padding-bottom: 8px;
  border-bottom: 1px solid var(--rule);
}

.fields-table,
.field-table {
  width: 100%;
  margin-top: 14px;
  font-size: 14.5px;
  line-height: 1.7;
}

.fields-table th,
.fields-table td,
.field-table th,
.field-table td {
  padding: 11px 12px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--rule);
}

.fields-table thead th,
.field-table thead th {
  font-family: var(--narrow);
  font-size: 13.5px;
  font-weight: 700;
  color: var(--ink);
  background-color: var(--paper-deep);
  border-bottom: 2px solid var(--rule-strong);
}

.fields-table tbody th,
.field-table tbody th {
  font-family: var(--sans);
  font-size: 14.5px;
  font-weight: 700;
  color: var(--accent);
  white-space: nowrap;
}

.fields-table tbody tr:hover,
.field-table tbody tr:hover {
  background-color: var(--card);
}

.fields-boundary p {
  margin-top: 14px;
  color: var(--ink-soft);
  font-size: 15px;
  line-height: 1.8;
}

.boundary-list {
  margin-top: 14px;
}

.boundary-list > li {
  position: relative;
  padding-left: 20px;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--ink-mute);
}

.boundary-list > li + li {
  margin-top: 10px;
}

.boundary-list > li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 11px;
  width: 7px;
  height: 7px;
  border: 1px solid var(--accent);
  border-radius: 1px;
}

/* 站内栏目索引 */
.index-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 16px;
}

.index-item {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-height: 44px;
  padding: 16px 14px 18px;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  background-color: var(--card);
  color: var(--ink);
}

.index-item:hover,
.index-item:focus-visible {
  border-color: var(--accent);
  background-color: #fff;
  text-decoration: none;
  color: var(--ink);
}

.index-no {
  font-family: var(--narrow);
  font-size: 12.5px;
  color: var(--accent);
}

.index-name {
  font-family: var(--sans);
  font-size: 16px;
  font-weight: 700;
}

.index-desc {
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink-mute);
}

/* --------------------------------------------------------------------------
   pages：题材分类
   -------------------------------------------------------------------------- */
.category-index-list {
  display: grid;
  gap: 22px;
}

.category-block {
  padding: 22px 22px 24px;
  border: 1px solid var(--rule);
  border-left: 4px solid var(--accent-soft);
  border-radius: var(--radius);
  background-color: var(--card);
}

.category-block-title {
  display: flex;
  align-items: baseline;
  gap: 10px;
  font-size: 17px;
  font-weight: 700;
  color: var(--ink);
}

.category-num {
  font-family: var(--narrow);
  font-size: 13px;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 0;
}

.category-block-desc {
  margin-top: 12px;
  max-width: 780px;
  color: var(--ink-soft);
  font-size: 15px;
  line-height: 1.8;
}

.category-meta {
  display: grid;
  grid-template-columns: 96px minmax(0, 1fr);
  gap: 6px 16px;
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px dashed var(--rule-strong);
}

.category-meta dt {
  font-family: var(--narrow);
  font-size: 13.5px;
  font-weight: 700;
  color: var(--chart);
}

.category-meta dd {
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--ink-mute);
}

/* 各方向代表条目封面墙 */
.coverwall-group {
  margin-top: 30px;
}

.coverwall-group:first-of-type {
  margin-top: 20px;
}

.coverwall-group-title {
  font-size: 17px;
  font-weight: 700;
  color: var(--ink);
  padding-bottom: 8px;
  border-bottom: 1px solid var(--rule);
}

.coverwall-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
  gap: 20px;
  margin-top: 18px;
}

.coverwall-grid .cover-card {
  min-width: 0;
  padding: 12px 12px 14px;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  background-color: var(--card);
  transition: border-color 0.18s ease, box-shadow 0.18s ease;
}

.coverwall-grid .cover-card:hover {
  border-color: var(--accent);
  box-shadow: 0 2px 0 0 var(--rule);
}

.cover-figure {
  overflow: hidden;
  border-radius: 4px;
}

.cover-figure img {
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  border: 1px solid var(--rule);
  border-radius: 4px;
}

.coverwall-grid .cover-name {
  margin-top: 10px;
  font-family: var(--sans);
  font-size: 15px;
  font-weight: 700;
  color: var(--ink);
}

.coverwall-grid .cover-tag {
  margin-top: 4px;
  font-family: var(--narrow);
  font-size: 12.5px;
  color: var(--chart);
}

/* 题材方向选择建议 */
.advice-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 18px;
  counter-reset: advice;
}

.advice-item {
  min-width: 0;
  padding: 18px 18px 20px;
  border: 1px solid var(--rule);
  border-top: 3px solid var(--chart);
  border-radius: var(--radius);
  background-color: var(--card);
}

.advice-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--ink);
}

.advice-desc {
  margin-top: 10px;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--ink-soft);
}

/* --------------------------------------------------------------------------
   pages：最近更新
   -------------------------------------------------------------------------- */
.stat-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin-top: 18px;
}

.stat-item {
  min-width: 0;
  padding: 16px 18px;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  background-color: var(--card);
}

.stat-label {
  font-family: var(--narrow);
  font-size: 13px;
  color: var(--ink-mute);
}

.stat-value {
  margin-top: 6px;
  font-family: var(--sans);
  font-size: 17px;
  font-weight: 700;
  color: var(--accent);
}

.section-update-feed .update-group {
  margin-top: 26px;
  padding-top: 18px;
  border-top: 1px solid var(--rule);
}

.section-update-feed .update-group:first-of-type {
  margin-top: 18px;
}

.section-update-feed .update-date {
  display: flex;
  align-items: baseline;
  gap: 12px;
  font-family: var(--sans);
  font-size: 16px;
  font-weight: 700;
  color: var(--ink);
}

.update-count {
  font-family: var(--narrow);
  font-size: 12.5px;
  font-weight: 400;
  color: var(--accent);
}

.section-update-feed .update-list {
  margin-top: 10px;
  border-top: 1px dashed var(--rule-strong);
}

.section-update-feed .update-row {
  display: grid;
  grid-template-columns: 92px minmax(140px, 0.9fr) 110px minmax(0, 2fr);
  align-items: baseline;
  gap: 6px 16px;
  padding: 12px 8px;
  border-bottom: 1px solid var(--rule);
  font-size: 14px;
  line-height: 1.7;
  transition: background-color 0.18s ease;
}

.section-update-feed .update-row:hover {
  background-color: var(--card);
}

.update-row-date {
  font-family: var(--narrow);
  font-size: 13px;
  color: var(--ink-mute);
}

.update-row-name {
  font-family: var(--sans);
  font-size: 15px;
  font-weight: 700;
  color: var(--ink);
}

.update-row-tag {
  font-family: var(--narrow);
  font-size: 13px;
  color: var(--chart);
}

.update-row-note {
  font-size: 14px;
  color: var(--ink-mute);
}

/* 更新重点条目图卡 */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 22px;
}

.feature-card {
  min-width: 0;
}

.feature-card img {
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
}

.feature-caption {
  margin-top: 10px;
}

.feature-name {
  font-family: var(--sans);
  font-size: 15px;
  font-weight: 700;
  color: var(--ink);
}

.feature-meta {
  margin-top: 5px;
  font-family: var(--narrow);
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink-mute);
}

/* 更新节奏与记录口径说明 */
.notes-columns {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}

.notes-col {
  min-width: 0;
  padding-top: 14px;
  border-top: 2px solid var(--rule-strong);
}

.notes-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--ink);
}

.notes-text {
  margin-top: 10px;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--ink-soft);
}

/* 相关入口卡 */
.link-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
}

.link-card {
  min-width: 0;
  padding: 18px 18px 20px;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  background-color: var(--card);
}

.link-card-title {
  font-size: 16px;
  font-weight: 700;
}

.link-card-title a {
  color: var(--accent);
}

.link-card-text {
  margin-top: 10px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink-mute);
}

/* --------------------------------------------------------------------------
   pages：人气榜单
   -------------------------------------------------------------------------- */
.ranking-list {
  border-top: 2px solid var(--rule-strong);
}

.ranking-item {
  display: grid;
  grid-template-columns: 64px minmax(0, 1fr);
  gap: 10px 18px;
  padding: 18px 10px;
  border-bottom: 1px solid var(--rule);
  transition: background-color 0.18s ease, box-shadow 0.18s ease;
}

.ranking-item:hover {
  background-color: var(--card);
  box-shadow: inset 3px 0 0 var(--accent);
}

.ranking-item .rank-no {
  font-family: var(--sans);
  font-size: 22px;
  font-weight: 700;
  line-height: 1.2;
  color: var(--accent-soft);
}

.ranking-item:nth-child(-n + 3) .rank-no {
  color: var(--accent);
}

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

.ranking-item .rank-name {
  font-size: 17px;
}

.ranking-item .rank-tag {
  margin-top: 4px;
  font-family: var(--narrow);
  font-size: 13px;
  color: var(--chart);
}

.ranking-item .rank-note {
  margin-top: 8px;
  max-width: 720px;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--ink-mute);
}

.ranking-figure {
  margin-top: 26px;
}

.ranking-figure img {
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 7;
  object-fit: cover;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
}

.figure-caption {
  margin-top: 10px;
  padding-left: 10px;
  border-left: 2px solid var(--accent-soft);
  font-family: var(--narrow);
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink-mute);
}

/* 排序依据说明 */
.method-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
}

.method-card {
  min-width: 0;
  padding: 18px 18px 20px;
  border: 1px solid var(--rule);
  border-top: 3px solid var(--accent-soft);
  border-radius: var(--radius);
  background-color: var(--card);
}

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

.method-text {
  margin-top: 10px;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--ink-soft);
}

/* 查阅路径 */
.path-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
}

.path-item {
  min-width: 0;
  padding-top: 14px;
  border-top: 2px solid var(--rule-strong);
}

.path-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--ink);
}

.path-text {
  margin-top: 10px;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--ink-soft);
}

.path-text a {
  border-bottom: 1px solid var(--accent-soft);
}

/* --------------------------------------------------------------------------
   pages：阅读说明
   -------------------------------------------------------------------------- */
.field-figure {
  margin-bottom: 24px;
}

.field-figure img {
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 7;
  object-fit: cover;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
}

.field-figure figcaption {
  margin-top: 10px;
  padding-left: 10px;
  border-left: 2px solid var(--accent-soft);
  font-family: var(--narrow);
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink-mute);
}

.field-table caption {
  padding-bottom: 10px;
  font-family: var(--narrow);
  font-size: 13px;
  color: var(--ink-mute);
  text-align: left;
}

/* 收录边界与查阅路径 */
.scope-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 32px;
}

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

.scope-subtitle {
  font-size: 17px;
  font-weight: 700;
  color: var(--ink);
  padding-bottom: 8px;
  border-bottom: 1px solid var(--rule);
}

.scope-list {
  margin-top: 14px;
}

.scope-list > li {
  position: relative;
  padding-left: 22px;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--ink-soft);
}

.scope-list > li + li {
  margin-top: 10px;
}

.scope-list > li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 12px;
  width: 8px;
  height: 8px;
  border: 1px solid var(--accent);
  border-radius: 1px;
}

.scope-col-path .scope-list > li::before {
  border-color: var(--chart);
}

.scope-list a {
  border-bottom: 1px solid var(--accent-soft);
}

.scope-note {
  margin-top: 26px;
  padding: 14px 18px;
  border-left: 3px solid var(--accent-soft);
  background-color: var(--card);
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink-mute);
}

/* 常见疑问解答 */
.faq-list {
  border-top: 1px solid var(--rule);
}

.faq-item {
  border-bottom: 1px solid var(--rule);
}

.faq-question {
  position: relative;
  padding: 16px 44px 16px 14px;
  min-height: 44px;
  font-family: var(--sans);
  font-size: 16px;
  font-weight: 700;
  line-height: 1.6;
  color: var(--ink);
  cursor: pointer;
  list-style: none;
}

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

.faq-question::after {
  content: "+";
  position: absolute;
  right: 14px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--narrow);
  font-size: 20px;
  font-weight: 400;
  line-height: 1;
  color: var(--accent);
}

.faq-item[open] .faq-question {
  color: var(--accent);
}

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

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

.faq-answer {
  padding: 0 14px 18px;
}

.faq-answer p {
  max-width: 820px;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--ink-soft);
}

/* 相关栏目 */
.related-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
}

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

.related-item a {
  display: flex;
  align-items: center;
  min-height: 44px;
  padding: 14px 16px;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  background-color: var(--card);
  font-family: var(--sans);
  font-size: 15px;
  font-weight: 700;
  color: var(--accent);
}

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

/* --------------------------------------------------------------------------
   pages：404
   -------------------------------------------------------------------------- */
.error-main {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 70px 20px 90px;
}

.error-panel {
  width: 100%;
  max-width: 720px;
  padding: 36px 34px 40px;
  border: 1px solid var(--rule);
  border-top: 4px solid var(--accent);
  border-radius: var(--radius);
  background-color: var(--card);
}

.error-code {
  font-family: var(--narrow);
  font-size: 40px;
  font-weight: 700;
  line-height: 1.1;
  color: var(--accent-soft);
}

.error-panel h1 {
  margin-top: 10px;
  font-size: 26px;
  line-height: 1.35;
}

.error-text {
  margin-top: 14px;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--ink-soft);
}

.error-actions {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 14px;
  margin-top: 26px;
}

.error-note {
  margin-top: 22px;
  padding-top: 16px;
  border-top: 1px dashed var(--rule-strong);
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink-mute);
}

/* --------------------------------------------------------------------------
   responsive：平板与手机（768px 断点，单列顺序阅读）
   -------------------------------------------------------------------------- */
@media (max-width: 1024px) {
  .hero-section {
    grid-template-columns: minmax(0, 1fr);
    gap: 30px;
  }

  .hero-thumbs {
    grid-column: 1 / -1;
  }

  .pair-layout,
  .fields-layout {
    grid-template-columns: minmax(0, 1fr);
    gap: 32px;
  }

  .category-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .footer-inner {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (max-width: 768px) {
  :root {
    --gap: 20px;
  }

  body {
    font-size: 15.5px;
  }

  .site-factbar {
    padding: 8px 14px;
    font-size: 12.5px;
  }

  .header-inner {
    flex-wrap: wrap;
    padding: 12px 14px;
    gap: 10px;
  }

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

  .nav-toggle {
    display: flex;
  }

  .site-nav {
    flex: 1 0 100%;
    justify-content: flex-start;
  }

  .nav-list {
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    width: 100%;
    padding: 6px 0 10px;
    border-top: 1px solid var(--rule);
  }

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

  .nav-list > li {
    width: 100%;
  }

  .nav-link {
    display: block;
    width: 100%;
    min-height: 44px;
    padding: 12px 10px;
    border-bottom: 1px solid var(--rule);
    border-radius: 0;
  }

  .nav-link.is-current {
    border-bottom-color: var(--rule);
    background-color: var(--paper-deep);
  }

  .home-main,
  .inner-main {
    padding: 0 14px 48px;
  }

  .inner-main {
    padding-top: 16px;
  }

  .page-header {
    padding: 22px 0 24px;
    margin-bottom: 30px;
  }

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

  .hero-section {
    padding: 30px 0 30px;
    margin-bottom: 36px;
  }

  .hero-summary,
  .page-description,
  .page-summary {
    font-size: 15px;
  }

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

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

  .section {
    margin-bottom: 40px;
  }

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

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

  .cover-wall {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    grid-auto-rows: 118px;
    gap: 12px;
  }

  .cover-wall .cover-card-wide {
    grid-column: span 2;
  }

  .rank-row {
    grid-template-columns: 40px minmax(0, 1fr);
    gap: 4px 12px;
    padding: 13px 6px;
  }

  .rank-row .rank-tag,
  .rank-row .rank-note {
    grid-column: 2 / 3;
  }

  .index-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .category-meta {
    grid-template-columns: 84px minmax(0, 1fr);
    gap: 4px 12px;
  }

  .coverwall-grid {
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 14px;
  }

  .advice-list,
  .method-grid,
  .link-cards,
  .feature-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .stat-strip {
    grid-template-columns: minmax(0, 1fr);
    gap: 12px;
  }

  .section-update-feed .update-row {
    grid-template-columns: minmax(0, 1fr);
    gap: 4px;
    padding: 12px 6px;
  }

  .notes-columns {
    grid-template-columns: minmax(0, 1fr);
    gap: 20px;
  }

  .ranking-item {
    grid-template-columns: 46px minmax(0, 1fr);
    gap: 8px 12px;
    padding: 16px 6px;
  }

  .ranking-item .rank-no {
    font-size: 19px;
  }

  .path-list {
    grid-template-columns: minmax(0, 1fr);
    gap: 18px;
  }

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

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

  .fields-table th,
  .fields-table td,
  .field-table th,
  .field-table td {
    padding: 9px 8px;
    font-size: 13.5px;
  }

  .fields-table tbody th,
  .field-table tbody th {
    white-space: normal;
  }

  .error-main {
    padding: 40px 14px 60px;
  }

  .error-panel {
    padding: 26px 18px 30px;
  }

  .error-code {
    font-size: 32px;
  }

  .error-panel h1 {
    font-size: 21px;
  }

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

  .footer-inner {
    grid-template-columns: minmax(0, 1fr);
    gap: 24px;
    padding: 34px 14px 24px;
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
    padding: 16px 14px 24px;
  }

  .footer-quick {
    gap: 4px 14px;
  }
}

@media (max-width: 390px) {
  .hero-thumbs {
    grid-template-columns: minmax(0, 1fr);
  }

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

  .cover-wall .cover-card-wide {
    grid-column: 1 / -1;
  }

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

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

/* 打印与降低动效偏好 */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  * {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}