/* ==========================================================================
   香蕉漫画 · 全站样式表
   结构分组：base / layout / components / pages / responsive
   ========================================================================== */

/* --------------------------------------------------------------------------
   base
   -------------------------------------------------------------------------- */

:root {
  --color-bg: #ffffff;
  --color-ink: #1c1f24;
  --color-muted: #5a6270;
  --color-accent: #e8543f;
  --color-surface: #eef1f5;
  --color-line: #d8dde5;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --font-mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  --container: 1160px;
  --radius: 6px;
  --radius-sm: 4px;
}

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

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

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-ink);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

h1,
h2,
h3,
h4 {
  margin: 0;
  font-weight: 700;
  line-height: 1.35;
  color: var(--color-ink);
}

p {
  margin: 0;
}

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

a {
  color: var(--color-ink);
  text-decoration: none;
  transition: color 160ms ease, border-color 160ms ease, transform 160ms ease;
}

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

img {
  display: block;
  max-width: 100%;
  height: auto;
  border: 0;
}

figure {
  margin: 0;
}

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

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

/* --------------------------------------------------------------------------
   layout · 全站骨架
   -------------------------------------------------------------------------- */

.site-body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.site-main {
  flex: 1 1 auto;
  width: 100%;
}

.home-main,
.inner-main,
.error-main {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 20px 56px;
}

/* 页头 */

.site-header {
  border-bottom: 1px solid var(--color-line);
  background: var(--color-bg);
}

.header-inner {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px 24px;
  max-width: var(--container);
  margin: 0 auto;
  padding: 16px 20px;
}

.brand {
  font-size: 20px;
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-ink);
  white-space: nowrap;
}

.brand:hover {
  color: var(--color-accent);
}

.nav-toggle {
  display: none;
  min-width: 44px;
  min-height: 44px;
  padding: 0 12px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-sm);
  background: var(--color-bg);
  color: var(--color-ink);
  font-size: 14px;
}

.nav-toggle:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.site-nav {
  margin-left: auto;
}

.nav-list {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 4px 22px;
}

.nav-list li {
  display: block;
}

.nav-list a {
  display: inline-block;
  padding: 6px 0;
  border-bottom: 2px solid transparent;
  font-size: 15px;
  color: var(--color-ink);
}

.nav-list a:hover {
  color: var(--color-accent);
}

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

/* 次级标签栏 */

.subnav-bar {
  border-bottom: 1px solid var(--color-line);
  background: var(--color-surface);
}

.subnav-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  max-width: var(--container);
  margin: 0 auto;
  padding: 10px 20px;
}

.subnav-list a {
  font-size: 14px;
  color: var(--color-muted);
}

.subnav-list a:hover {
  color: var(--color-accent);
}

/* 面包屑 */

.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
  padding: 18px 0 0;
  font-size: 14px;
  line-height: 1.6;
  color: var(--color-muted);
}

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

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

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

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

/* 页面标题区 */

.page-header {
  padding: 22px 0 26px;
  border-bottom: 1px solid var(--color-line);
}

.page-title {
  font-size: 30px;
  font-weight: 700;
  line-height: 1.35;
}

.page-description {
  max-width: 760px;
  margin-top: 12px;
  font-size: 16px;
  line-height: 1.75;
  color: var(--color-muted);
}

/* 双栏页面布局：主内容在前，aside 在后 */

.page-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  gap: 40px;
  padding-top: 34px;
  align-items: start;
}

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

.layout-aside {
  min-width: 0;
  padding: 20px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  background: var(--color-surface);
}

/* 页脚 */

.site-footer {
  margin-top: 40px;
  border-top: 1px solid var(--color-line);
  background: var(--color-surface);
}

.footer-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) repeat(3, minmax(0, 1fr));
  gap: 32px;
  max-width: var(--container);
  margin: 0 auto;
  padding: 40px 20px 28px;
}

.footer-brand {
  min-width: 0;
}

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

.footer-desc {
  margin-top: 10px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--color-muted);
}

.footer-group {
  min-width: 0;
}

.footer-group-title {
  margin-bottom: 12px;
  font-size: 15px;
  font-weight: 600;
  color: var(--color-ink);
}

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

.footer-list a {
  font-size: 14px;
  line-height: 1.6;
  color: var(--color-muted);
}

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

.footer-bottom {
  max-width: var(--container);
  margin: 0 auto;
  padding: 16px 20px 26px;
  border-top: 1px solid var(--color-line);
  font-size: 13px;
  line-height: 1.7;
  color: var(--color-muted);
}

/* --------------------------------------------------------------------------
   components · 通用模块
   -------------------------------------------------------------------------- */

.section-title {
  font-size: 22px;
  font-weight: 700;
  line-height: 1.4;
}

.section-lead,
.section-intro,
.section-desc {
  max-width: 760px;
  margin-top: 10px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--color-muted);
}

.subsection-title {
  font-size: 17px;
  font-weight: 600;
  line-height: 1.5;
}

.section-more {
  margin-top: 18px;
  font-size: 15px;
}

.section-more a {
  color: var(--color-accent);
  font-weight: 600;
}

.section-more a:hover {
  text-decoration: underline;
}

/* 步骤通用（首页与内页共用编号步骤） */

.guide-steps,
.path-steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
  margin-top: 22px;
}

.guide-step,
.path-step {
  position: relative;
  padding: 18px 18px 18px 20px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  background: var(--color-bg);
}

.guide-step .step-no,
.path-step .step-no,
.path-step .step-index,
.guide-step .step-index {
  display: inline-block;
  margin-bottom: 8px;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--color-accent);
}

.guide-step .step-title,
.path-step .step-title {
  font-size: 17px;
  font-weight: 600;
}

.guide-step .step-text,
.path-step .step-text,
.path-step .step-desc {
  margin-top: 8px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--color-muted);
}

.guide-step .step-text a,
.path-step .step-text a,
.path-step .step-desc a {
  color: var(--color-accent);
}

/* 位次列表（首页与内页共用） */

.rank-list {
  margin-top: 16px;
  border-top: 1px solid var(--color-line);
}

.rank-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 12px 4px;
  border-bottom: 1px solid var(--color-line);
}

.rank-no,
.rank-number {
  flex: 0 0 auto;
  min-width: 30px;
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
  color: var(--color-accent);
}

.rank-name {
  flex: 1 1 auto;
  min-width: 0;
  font-size: 15px;
  font-weight: 500;
}

.rank-tag {
  flex: 0 0 auto;
  padding: 2px 8px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-sm);
  font-size: 13px;
  color: var(--color-muted);
  background: var(--color-surface);
}

/* 返回顶部 */

.back-to-top {
  position: fixed;
  right: 20px;
  bottom: 24px;
  z-index: 20;
  display: none;
  min-width: 44px;
  min-height: 44px;
  padding: 0 14px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-sm);
  background: var(--color-bg);
  font-size: 14px;
  color: var(--color-ink);
  box-shadow: 0 2px 10px rgba(28, 31, 36, 0.1);
}

.back-to-top.is-visible {
  display: block;
}

.back-to-top:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

/* --------------------------------------------------------------------------
   pages · index.html
   -------------------------------------------------------------------------- */

.site-factbar {
  padding: 10px 20px;
  border-bottom: 1px solid var(--color-line);
  background: var(--color-surface);
  font-size: 14px;
  line-height: 1.6;
  color: var(--color-muted);
  text-align: center;
}

/* 全宽列表首屏 */

.hero-section {
  padding: 34px 0 40px;
  border-bottom: 1px solid var(--color-line);
}

.hero-title {
  font-size: 34px;
  font-weight: 700;
  line-height: 1.3;
}

.hero-lead {
  max-width: 760px;
  margin-top: 12px;
  font-size: 16px;
  line-height: 1.75;
  color: var(--color-muted);
}

.hero-feature {
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr);
  gap: 24px;
  margin-top: 26px;
  padding: 20px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  background: var(--color-bg);
}

.hero-figure {
  width: 100%;
  aspect-ratio: 3 / 4;
  overflow: hidden;
  border-radius: var(--radius-sm);
  background: var(--color-surface);
}

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

.hero-feature-body {
  min-width: 0;
}

.hero-feature-tag {
  display: inline-block;
  padding: 2px 10px;
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  font-size: 13px;
  color: var(--color-muted);
}

.hero-feature-name {
  margin-top: 12px;
  font-size: 22px;
  font-weight: 700;
}

.hero-feature-summary {
  margin-top: 12px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--color-muted);
}

.hero-feature-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  margin-top: 16px;
  font-size: 14px;
  color: var(--color-muted);
}

.hero-feature-meta li {
  position: relative;
  padding-left: 12px;
}

.hero-feature-meta li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--color-accent);
}

.hero-compact-list {
  margin-top: 20px;
  border-top: 1px solid var(--color-line);
}

.hero-compact-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 10px 4px;
  border-bottom: 1px solid var(--color-line);
}

.hero-compact-cover {
  flex: 0 0 auto;
  width: 40px;
  height: 54px;
  object-fit: cover;
  border-radius: var(--radius-sm);
  background: var(--color-surface);
}

.hero-compact-name {
  flex: 1 1 auto;
  min-width: 0;
  font-size: 15px;
}

.hero-compact-status {
  flex: 0 0 auto;
  font-size: 13px;
  color: var(--color-muted);
}

/* 题材方向总览 */

.category-overview {
  padding: 40px 0;
  border-bottom: 1px solid var(--color-line);
}

.category-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
  margin-top: 22px;
}

.category-cell {
  display: flex;
  flex-direction: column;
  padding: 18px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  background: var(--color-bg);
}

.category-cell:hover {
  transform: translateY(-2px);
  border-color: var(--color-accent);
}

.category-name {
  font-size: 17px;
  font-weight: 600;
}

.category-scope {
  margin-top: 10px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--color-muted);
}

.category-count {
  margin-top: auto;
  padding-top: 14px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--color-muted);
}

/* 封面条目速览 */

.cover-preview {
  padding: 40px 0;
  border-bottom: 1px solid var(--color-line);
}

.cover-flow {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
  margin-top: 22px;
  align-items: start;
}

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

.cover-card:hover {
  transform: translateY(-2px);
}

.cover-figure {
  width: 100%;
  aspect-ratio: 3 / 4;
  overflow: hidden;
  border-radius: var(--radius);
  background: var(--color-surface);
}

.cover-card:nth-child(3n + 2) .cover-figure {
  aspect-ratio: 4 / 5;
}

.cover-card:nth-child(3n) .cover-figure {
  aspect-ratio: 1 / 1;
}

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

.cover-name {
  margin-top: 12px;
  font-size: 16px;
  font-weight: 600;
}

.cover-tag {
  margin-top: 6px;
  font-size: 13px;
  color: var(--color-muted);
}

/* 最近更新记录 */

.update-records {
  padding: 40px 0;
  border-bottom: 1px solid var(--color-line);
}

.batch-bar {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin-top: 22px;
}

.batch-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 14px 16px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  background: var(--color-surface);
}

.batch-no {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--color-accent);
}

.batch-scope {
  font-size: 14px;
  color: var(--color-ink);
}

.batch-count,
.batch-date {
  font-size: 13px;
  color: var(--color-muted);
}

.update-groups {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px 32px;
  margin-top: 24px;
}

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

.update-date {
  padding-bottom: 8px;
  border-bottom: 1px solid var(--color-line);
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
  color: var(--color-ink);
}

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

.update-item {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 4px 12px;
  padding: 8px 0;
  border-bottom: 1px dashed var(--color-line);
}

.update-name {
  font-size: 15px;
  font-weight: 500;
}

.update-field {
  font-size: 13px;
  color: var(--color-accent);
}

.update-note {
  grid-column: 1 / -1;
  font-size: 14px;
  line-height: 1.7;
  color: var(--color-muted);
}

/* 人气位次参考与字段口径摘要 */

.ranking-reference {
  padding: 40px 0;
  border-bottom: 1px solid var(--color-line);
}

.ranking-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: 40px;
  margin-top: 22px;
  align-items: start;
}

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

.ranking-aside {
  min-width: 0;
  padding: 20px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  background: var(--color-surface);
}

.aside-text {
  margin-top: 10px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--color-muted);
}

.aside-text a {
  color: var(--color-accent);
}

.field-digest {
  margin-top: 14px;
}

.field-digest-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 10px 0;
  border-bottom: 1px solid var(--color-line);
}

.field-digest-item:last-child {
  border-bottom: 0;
}

.field-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-ink);
}

.field-desc {
  font-size: 13px;
  line-height: 1.7;
  color: var(--color-muted);
}

/* 查阅路径与反馈入口 */

.guide-section {
  padding: 40px 0;
  border-bottom: 1px solid var(--color-line);
}

.feedback-note {
  margin-top: 26px;
  padding: 20px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  background: var(--color-surface);
}

.feedback-text {
  margin-top: 10px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--color-muted);
}

.feedback-link {
  margin-top: 12px;
  font-size: 15px;
}

.feedback-link a {
  color: var(--color-accent);
  font-weight: 600;
}

.feedback-link a:hover {
  text-decoration: underline;
}

/* 站内栏目索引 */

.site-index {
  padding: 40px 0 8px;
}

.index-list {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 18px;
  margin-top: 22px;
}

.index-item {
  padding: 16px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  background: var(--color-bg);
}

.index-item:hover {
  transform: translateY(-2px);
  border-color: var(--color-accent);
}

.index-name {
  font-size: 16px;
  font-weight: 600;
}

.index-desc {
  margin-top: 8px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--color-muted);
}

/* --------------------------------------------------------------------------
   pages · 内页通用区块
   -------------------------------------------------------------------------- */

.section {
  padding: 32px 0;
  border-bottom: 1px solid var(--color-line);
}

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

.section-head {
  max-width: 760px;
}

.section-head h2 {
  font-size: 22px;
  font-weight: 700;
  line-height: 1.4;
}

.section-head p {
  margin-top: 10px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--color-muted);
}

/* 侧栏（题材分类 / 人气位次） */

.aside-title {
  font-size: 17px;
  font-weight: 600;
  line-height: 1.5;
}

.aside-intro {
  margin-top: 10px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--color-muted);
}

.aside-index {
  margin-top: 14px;
}

.aside-index li + li {
  margin-top: 8px;
}

.aside-index a {
  display: block;
  padding: 8px 10px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-sm);
  background: var(--color-bg);
  font-size: 14px;
  color: var(--color-ink);
}

.aside-index a:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.aside-note {
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px solid var(--color-line);
}

.aside-note-title {
  font-size: 15px;
  font-weight: 600;
}

.aside-note p {
  margin-top: 8px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--color-muted);
}

.aside-note p a {
  color: var(--color-accent);
}

.aside-block + .aside-block {
  margin-top: 20px;
  padding-top: 18px;
  border-top: 1px solid var(--color-line);
}

/* --------------------------------------------------------------------------
   pages · xjmh/category.html
   -------------------------------------------------------------------------- */

.direction-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  margin-top: 22px;
}

.direction-card {
  display: flex;
  flex-direction: column;
  padding: 18px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  background: var(--color-bg);
}

.direction-name {
  font-size: 17px;
  font-weight: 600;
}

.direction-scope,
.direction-trait {
  margin-top: 10px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--color-muted);
}

.direction-count {
  margin-top: auto;
  padding-top: 14px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--color-muted);
}

.direction-block {
  margin-top: 26px;
}

.direction-block-title {
  padding-bottom: 10px;
  border-bottom: 1px solid var(--color-line);
  font-size: 17px;
  font-weight: 600;
}

.entry-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin-top: 18px;
}

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

.entry-card:hover {
  transform: translateY(-2px);
}

.entry-figure {
  width: 100%;
  aspect-ratio: 3 / 4;
  overflow: hidden;
  border-radius: var(--radius);
  background: var(--color-surface);
}

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

.entry-name {
  margin-top: 10px;
  font-size: 15px;
  font-weight: 600;
}

.entry-meta {
  margin-top: 6px;
  font-size: 13px;
  color: var(--color-muted);
}

.diff-list {
  margin-top: 20px;
  border-top: 1px solid var(--color-line);
}

.diff-term {
  padding-top: 14px;
  font-size: 16px;
  font-weight: 600;
  color: var(--color-ink);
}

.diff-desc {
  padding-bottom: 14px;
  margin-top: 6px;
  border-bottom: 1px solid var(--color-line);
  font-size: 15px;
  line-height: 1.75;
  color: var(--color-muted);
}

/* --------------------------------------------------------------------------
   pages · xjmh/updates.html
   -------------------------------------------------------------------------- */

.batch-status {
  padding-top: 34px;
}

.batch-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
  margin-top: 22px;
}

.batch-card {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 16px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  background: var(--color-surface);
}

.batch-name {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
  color: var(--color-accent);
}

.batch-card .batch-scope {
  font-size: 14px;
  color: var(--color-ink);
}

.batch-card .batch-count,
.batch-card .batch-date {
  font-size: 13px;
  color: var(--color-muted);
}

.record-group {
  margin-top: 26px;
}

.record-date {
  padding-bottom: 10px;
  border-bottom: 1px solid var(--color-line);
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 700;
}

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

.record-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 10px 0;
  border-bottom: 1px dashed var(--color-line);
}

.record-cover {
  flex: 0 0 auto;
  width: 44px;
  height: 58px;
  object-fit: cover;
  border-radius: var(--radius-sm);
  background: var(--color-surface);
}

.record-text {
  min-width: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--color-muted);
}

.type-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin-top: 22px;
}

.type-card {
  padding: 18px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  background: var(--color-bg);
}

.type-name {
  font-size: 17px;
  font-weight: 600;
}

.type-criteria,
.type-example {
  margin-top: 10px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--color-muted);
}

.back-to-entries {
  padding-top: 32px;
  padding-bottom: 8px;
}

/* --------------------------------------------------------------------------
   pages · xjmh/ranking.html
   -------------------------------------------------------------------------- */

.content-section {
  padding: 32px 0;
  border-bottom: 1px solid var(--color-line);
}

.content-section:first-child {
  padding-top: 0;
}

.content-section:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.content-section h2 {
  font-size: 22px;
  font-weight: 700;
  line-height: 1.4;
}

.content-section > p {
  max-width: 760px;
  margin-top: 10px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--color-muted);
}

.content-section > p a {
  color: var(--color-accent);
}

.content-section h3 {
  margin-top: 24px;
  font-size: 17px;
  font-weight: 600;
}

.criteria-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin-top: 16px;
}

.criteria-item {
  padding: 16px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  background: var(--color-bg);
}

.criteria-name {
  font-size: 16px;
  font-weight: 600;
}

.criteria-item p {
  margin-top: 8px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--color-muted);
}

.rank-cover {
  flex: 0 0 auto;
  width: 44px;
  height: 58px;
  overflow: hidden;
  border-radius: var(--radius-sm);
  background: var(--color-surface);
}

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

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

.rank-body .rank-name {
  display: block;
}

.rank-note {
  margin-top: 4px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--color-muted);
}

.advice-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin-top: 16px;
}

.advice-item {
  padding: 16px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  background: var(--color-surface);
}

.advice-title {
  font-size: 16px;
  font-weight: 600;
}

.advice-item p {
  margin-top: 8px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--color-muted);
}

.feedback-block {
  margin-top: 18px;
  padding: 18px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  background: var(--color-surface);
}

.feedback-block h3 {
  margin-top: 0;
  font-size: 16px;
  font-weight: 600;
}

.feedback-block p {
  margin-top: 8px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--color-muted);
}

.feedback-block p a {
  color: var(--color-accent);
}

.criteria-summary {
  margin-top: 12px;
}

.criteria-summary dt {
  margin-top: 10px;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-ink);
}

.criteria-summary dd {
  margin: 4px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--color-muted);
}

/* --------------------------------------------------------------------------
   pages · xjmh/fields.html
   -------------------------------------------------------------------------- */

.field-table-section {
  padding-top: 34px;
}

.field-table {
  margin-top: 22px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  overflow: hidden;
}

.field-table caption {
  padding: 12px 16px;
  border-bottom: 1px solid var(--color-line);
  background: var(--color-surface);
  font-size: 14px;
  text-align: left;
  color: var(--color-muted);
}

.field-table th,
.field-table td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--color-line);
  font-size: 14px;
  line-height: 1.7;
  text-align: left;
  vertical-align: top;
}

.field-table thead th {
  background: var(--color-surface);
  font-weight: 600;
  color: var(--color-ink);
}

.field-table tbody th {
  width: 130px;
  font-weight: 600;
  color: var(--color-ink);
}

.field-table tbody tr:last-child th,
.field-table tbody tr:last-child td {
  border-bottom: 0;
}

.field-table td {
  color: var(--color-muted);
}

.field-sample-figure {
  margin-top: 22px;
  padding: 16px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  background: var(--color-surface);
}

.field-sample-figure img {
  width: 100%;
  max-width: 520px;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  border-radius: var(--radius-sm);
  background: var(--color-bg);
}

.field-sample-figure figcaption {
  margin-top: 12px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--color-muted);
}

.field-sample-list {
  margin-top: 18px;
}

.field-sample-list li {
  padding: 10px 0;
  border-bottom: 1px dashed var(--color-line);
  font-size: 14px;
  line-height: 1.75;
  color: var(--color-muted);
}

.field-sample-list li strong {
  display: inline-block;
  margin-right: 8px;
  color: var(--color-ink);
}

.field-value-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  margin-top: 22px;
}

.field-value-item {
  padding: 18px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  background: var(--color-bg);
}

.field-value-item h3 {
  font-size: 16px;
  font-weight: 600;
}

.field-value-item p {
  margin-top: 8px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--color-muted);
}

.field-value-item .field-tip {
  padding-top: 10px;
  border-top: 1px dashed var(--color-line);
  color: var(--color-ink);
}

.guide-note {
  margin-top: 18px;
  font-size: 15px;
}

.guide-note a {
  color: var(--color-accent);
  font-weight: 600;
}

.guide-note a:hover {
  text-decoration: underline;
}

.feedback-groups {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin-top: 22px;
}

.feedback-group {
  padding: 18px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  background: var(--color-surface);
}

.feedback-group h3 {
  font-size: 16px;
  font-weight: 600;
}

.feedback-group p {
  margin-top: 8px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--color-muted);
}

.feedback-group .feedback-entry a {
  color: var(--color-accent);
  font-weight: 600;
}

.feedback-section > .feedback-note {
  margin-top: 18px;
  padding: 16px 18px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  background: var(--color-bg);
  font-size: 14px;
  line-height: 1.75;
  color: var(--color-muted);
}

.faq-section {
  padding-top: 32px;
}

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

.faq-item + .faq-item {
  margin-top: 12px;
}

.faq-item summary {
  padding: 14px 18px;
  font-size: 15px;
  font-weight: 600;
  color: var(--color-ink);
  cursor: pointer;
  list-style: none;
}

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

.faq-item summary::after {
  content: "+";
  float: right;
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--color-accent);
}

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

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

.faq-item p {
  padding: 0 18px 16px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--color-muted);
}

.related-list {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
  margin-top: 22px;
}

.related-list li a {
  display: block;
  padding: 14px 16px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  background: var(--color-bg);
  font-size: 15px;
  color: var(--color-ink);
}

.related-list li a:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

/* --------------------------------------------------------------------------
   pages · 404.html
   -------------------------------------------------------------------------- */

.error-main {
  padding-top: 44px;
}

.error-panel {
  padding: 32px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  background: var(--color-surface);
}

.error-code {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
  color: var(--color-accent);
}

.error-panel h1 {
  margin-top: 10px;
  font-size: 30px;
  font-weight: 700;
  line-height: 1.35;
}

.error-lead {
  max-width: 760px;
  margin-top: 12px;
  font-size: 16px;
  line-height: 1.75;
  color: var(--color-muted);
}

.error-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}

.btn-primary,
.btn-ghost {
  display: inline-block;
  min-height: 44px;
  padding: 10px 20px;
  border-radius: var(--radius-sm);
  font-size: 15px;
  line-height: 1.6;
  text-align: center;
}

.btn-primary {
  border: 1px solid var(--color-accent);
  background: var(--color-accent);
  color: #ffffff;
}

.btn-primary:hover {
  background: #cf4531;
  border-color: #cf4531;
  color: #ffffff;
}

.btn-ghost {
  border: 1px solid var(--color-line);
  background: var(--color-bg);
  color: var(--color-ink);
}

.btn-ghost:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.error-hints {
  padding: 34px 0 8px;
}

.error-hints h2 {
  font-size: 22px;
  font-weight: 700;
  line-height: 1.4;
}

.hint-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin-top: 22px;
}

.hint-item {
  padding: 18px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  background: var(--color-bg);
}

.hint-item h3 {
  font-size: 16px;
  font-weight: 600;
}

.hint-item p {
  margin-top: 8px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--color-muted);
}

.error-index {
  margin-top: 28px;
}

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

.error-index-list li a {
  display: block;
  padding: 12px 14px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  background: var(--color-bg);
  font-size: 15px;
  text-align: center;
  color: var(--color-ink);
}

.error-index-list li a:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

/* --------------------------------------------------------------------------
   responsive
   -------------------------------------------------------------------------- */

@media (max-width: 960px) {
  .page-layout {
    grid-template-columns: minmax(0, 1fr);
    gap: 32px;
  }

  .layout-aside {
    padding: 18px;
  }

  .ranking-layout {
    grid-template-columns: minmax(0, 1fr);
    gap: 28px;
  }

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

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

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

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

  .criteria-list,
  .advice-list,
  .type-grid,
  .feedback-groups,
  .hint-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .footer-inner {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 26px;
  }

  .hero-feature {
    grid-template-columns: 220px minmax(0, 1fr);
  }
}

@media (max-width: 640px) {
  body {
    font-size: 15px;
  }

  .home-main,
  .inner-main,
  .error-main {
    padding: 0 16px 44px;
  }

  .header-inner {
    padding: 14px 16px;
  }

  .nav-toggle {
    display: inline-block;
    margin-left: auto;
  }

  .site-nav {
    flex: 1 1 100%;
    margin-left: 0;
  }

  .nav-list {
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    margin-top: 12px;
    border-top: 1px solid var(--color-line);
  }

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

  .nav-list li {
    border-bottom: 1px solid var(--color-line);
  }

  .nav-list a {
    display: block;
    padding: 12px 4px;
    min-height: 44px;
    font-size: 16px;
  }

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

  .subnav-bar {
    overflow-x: auto;
  }

  .subnav-list {
    flex-wrap: nowrap;
    padding: 10px 16px;
  }

  .subnav-list li {
    flex: 0 0 auto;
  }

  .page-title,
  .error-panel h1 {
    font-size: 24px;
  }

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

  .section-title,
  .section-head h2,
  .content-section h2,
  .error-hints h2 {
    font-size: 20px;
  }

  .hero-feature {
    grid-template-columns: minmax(0, 1fr);
    padding: 16px;
  }

  .hero-figure {
    max-width: 240px;
  }

  .category-grid,
  .direction-grid,
  .batch-bar,
  .batch-grid,
  .cover-flow,
  .update-groups,
  .index-list,
  .related-list,
  .criteria-list,
  .advice-list,
  .type-grid,
  .feedback-groups,
  .hint-list,
  .field-value-list,
  .entry-grid,
  .error-index-list {
    grid-template-columns: minmax(0, 1fr);
  }

  .cover-card:nth-child(3n + 2) .cover-figure,
  .cover-card:nth-child(3n) .cover-figure {
    aspect-ratio: 3 / 4;
  }

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

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

  .footer-inner {
    grid-template-columns: minmax(0, 1fr);
    gap: 22px;
    padding: 32px 16px 22px;
  }

  .footer-bottom {
    padding: 14px 16px 22px;
  }

  .error-panel {
    padding: 22px 18px;
  }

  /* 字段口径表在小屏转为逐项说明列表 */

  .field-table,
  .field-table thead,
  .field-table tbody,
  .field-table tr,
  .field-table th,
  .field-table td {
    display: block;
    width: 100%;
  }

  .field-table thead {
    display: none;
  }

  .field-table tbody tr {
    padding: 14px 16px;
    border-bottom: 1px solid var(--color-line);
  }

  .field-table tbody tr:last-child {
    border-bottom: 0;
  }

  .field-table tbody th,
  .field-table tbody td {
    padding: 4px 0;
    border-bottom: 0;
    width: auto;
  }

  .field-table tbody th {
    font-size: 15px;
  }

  .field-table tbody td::before {
    content: attr(data-label);
    display: inline-block;
    min-width: 72px;
    color: var(--color-ink);
  }

  .field-sample-figure img {
    max-width: 100%;
  }

  .back-to-top {
    right: 14px;
    bottom: 16px;
  }
}