/* ==========================================================================
   喵趣漫画 hgnol.cn — 全站样式
   分组：base / layout / components / pages / responsive
   ========================================================================== */

/* --------------------------------------------------------------------------
   base：变量、重置、排版基调
   -------------------------------------------------------------------------- */
:root {
  --c-bg: #0f1a2b;
  --c-panel: #16233a;
  --c-panel-soft: #131f33;
  --c-text: #e8e3d6;
  --c-text-dim: #9aa7bd;
  --c-accent: #4fd1a5;
  --c-gold: #f2b544;
  --c-line: #2a3a55;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans SC",
    "Microsoft YaHei", sans-serif;
  --wrap: 1180px;
  --gap: 20px;
}

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

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

body {
  margin: 0;
  background-color: var(--c-bg);
  color: var(--c-text);
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.75;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-weight: 600;
  line-height: 1.35;
  color: var(--c-text);
}

p {
  margin: 0 0 12px;
}

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

a {
  color: var(--c-accent);
  text-decoration: none;
}

a:hover,
a:focus-visible {
  color: var(--c-text);
  text-decoration: underline;
}

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

figure {
  margin: 0;
}

button {
  font: inherit;
  color: inherit;
  background: none;
  border: 0;
  cursor: pointer;
}

:focus-visible {
  outline: 2px solid var(--c-accent);
  outline-offset: 2px;
}

/* 通用文本链接 */
.text-link {
  color: var(--c-accent);
  border-bottom: 1px solid rgba(79, 209, 165, 0.35);
  text-decoration: none;
}

.text-link:hover,
.text-link:focus-visible {
  color: var(--c-text);
  border-bottom-color: var(--c-text);
}

/* 等宽字段名 */
.field-name,
.field-label,
.entry-field {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--c-text-dim);
}

/* --------------------------------------------------------------------------
   layout：全站骨架（页头 / 导航 / 主容器 / 面包屑 / 页脚）
   -------------------------------------------------------------------------- */
.site-body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  background-color: var(--c-bg);
  color: var(--c-text);
  font-family: var(--font-sans);
}

.site-header {
  position: relative;
  z-index: 20;
  background-color: var(--c-panel);
  border-bottom: 1px solid var(--c-line);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  width: 100%;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 14px 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--c-text);
  text-decoration: none;
}

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

.brand-mark {
  flex: 0 0 auto;
  width: 34px;
  height: 34px;
  border: 1px solid var(--c-accent);
  border-radius: 4px;
  background-color: var(--c-panel-soft);
  box-shadow: inset 0 0 0 4px var(--c-panel);
  position: relative;
}

.brand-mark::before {
  content: "";
  position: absolute;
  inset: 9px;
  background-color: var(--c-accent);
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.25;
}

.brand-name {
  font-family: var(--font-mono);
  font-size: 18px;
  font-weight: 600;
  letter-spacing: 0.02em;
}

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

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 10px;
  border: 1px solid var(--c-line);
  border-radius: 4px;
  flex-direction: column;
  justify-content: space-between;
}

.nav-toggle-bar {
  display: block;
  height: 2px;
  background-color: var(--c-text);
}

.site-nav {
  font-family: var(--font-mono);
}

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

.nav-item {
  list-style: none;
}

.nav-link {
  display: inline-block;
  padding: 10px 12px;
  font-size: 14px;
  color: var(--c-text-dim);
  border-bottom: 2px solid transparent;
  text-decoration: none;
}

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

.nav-link.is-current {
  color: var(--c-text);
  border-bottom-color: var(--c-accent);
}

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

.inner-main {
  width: 100%;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 22px 24px 56px;
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: 14px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--c-text-dim);
}

.breadcrumb a {
  color: var(--c-text-dim);
  text-decoration: none;
}

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

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

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

.page-header {
  padding: 4px 0 22px;
  border-bottom: 1px solid var(--c-line);
  margin-bottom: 28px;
}

.page-title {
  margin-bottom: 10px;
  font-size: 30px;
  font-weight: 600;
  color: var(--c-text);
}

.page-description {
  max-width: 860px;
  margin: 0;
  color: var(--c-text-dim);
}

/* 页脚 */
.site-footer {
  background-color: var(--c-panel);
  border-top: 1px solid var(--c-line);
}

.footer-inner {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 28px;
  width: 100%;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 36px 24px 22px;
}

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

.footer-title {
  margin-bottom: 10px;
  font-size: 14px;
  letter-spacing: 0.06em;
  color: var(--c-accent);
}

.footer-about {
  margin: 0 0 12px;
  font-size: 13px;
  color: var(--c-text-dim);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.footer-links li {
  list-style: none;
}

.footer-links a {
  font-size: 13px;
  color: var(--c-text-dim);
  text-decoration: none;
}

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

.footer-copyright {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 14px 24px 26px;
  border-top: 1px solid var(--c-line);
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--c-text-dim);
}

/* --------------------------------------------------------------------------
   components：跨页共用模块
   -------------------------------------------------------------------------- */
.section-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px 20px;
  margin-bottom: 18px;
}

.section-title {
  margin: 0;
  font-size: 22px;
  font-weight: 600;
}

.section-desc,
.section-lead,
.section-intro {
  margin: 0;
  max-width: 780px;
  color: var(--c-text-dim);
  font-size: 14px;
}

.section-lead {
  margin-bottom: 20px;
}

.section-intro {
  margin-bottom: 20px;
}

.module-more {
  margin: 20px 0 0;
  font-family: var(--font-mono);
  font-size: 13px;
}

/* 分组标题条 */
.group-title {
  margin: 26px 0 10px;
  padding: 8px 12px;
  font-size: 14px;
  letter-spacing: 0.06em;
  color: var(--c-accent);
  background-color: var(--c-panel-soft);
  border: 1px solid var(--c-line);
  border-left: 3px solid var(--c-accent);
  border-radius: 2px;
}

.group-anchor {
  margin: 30px 0 12px;
  padding: 8px 12px;
  font-size: 15px;
  letter-spacing: 0.06em;
  color: var(--c-accent);
  background-color: var(--c-panel-soft);
  border: 1px solid var(--c-line);
  border-left: 3px solid var(--c-accent);
  border-radius: 2px;
}

/* 图片容器统一约束 */
.hero-figure,
.genre-figure,
.page-media,
.page-figure {
  overflow: hidden;
  border: 1px solid var(--c-line);
  border-radius: 4px;
  background-color: var(--c-panel-soft);
}

.hero-image,
.genre-figure img,
.page-media img,
.page-figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-caption,
.genre-figure figcaption,
.media-caption,
.page-media-caption,
.page-figure figcaption {
  padding: 8px 12px;
  border-top: 1px solid var(--c-line);
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--c-text-dim);
}

/* --------------------------------------------------------------------------
   pages：首页
   -------------------------------------------------------------------------- */
.site-factbar {
  margin: 0;
  padding: 9px 24px;
  background-color: var(--c-panel-soft);
  border-bottom: 1px solid var(--c-line);
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--c-text-dim);
  text-align: center;
}

.home-main {
  width: 100%;
}

.home-main > section {
  width: 100%;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 44px 24px 0;
}

.home-main > section:last-of-type {
  padding-bottom: 52px;
}

/* 首屏 */
.hero-section {
  padding-top: 40px;
}

.hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: 34px;
  align-items: start;
  padding: 28px;
  background-color: var(--c-panel);
  border: 1px solid var(--c-line);
  border-radius: 6px;
  background-image:
    linear-gradient(rgba(42, 58, 85, 0.55) 1px, transparent 1px),
    linear-gradient(90deg, rgba(42, 58, 85, 0.55) 1px, transparent 1px);
  background-size: 28px 28px;
}

.hero-copy {
  min-width: 0;
  padding: 6px 4px 6px 0;
}

.hero-eyebrow {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.08em;
  color: var(--c-accent);
}

.hero-title {
  margin: 0 0 14px;
  font-size: 30px;
  font-weight: 600;
  line-height: 1.3;
}

.hero-summary {
  margin: 0 0 20px;
  color: var(--c-text-dim);
}

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

.hero-path {
  min-width: 0;
  list-style: none;
}

.hero-path-link {
  display: block;
  height: 100%;
  padding: 12px 14px;
  background-color: var(--c-panel-soft);
  border: 1px solid var(--c-line);
  border-radius: 4px;
  color: var(--c-text);
  text-decoration: none;
}

.hero-path-link:hover,
.hero-path-link:focus-visible {
  border-color: var(--c-accent);
  transform: translateY(-2px);
  text-decoration: none;
}

.hero-path-title {
  display: block;
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--c-accent);
}

.hero-path-desc {
  display: block;
  margin-top: 4px;
  font-size: 12.5px;
  color: var(--c-text-dim);
}

.hero-figure {
  min-width: 0;
  aspect-ratio: 4 / 3;
}

/* 题材方向总览（首页四栏） */
.genre-columns {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--gap);
}

.genre-col {
  min-width: 0;
  padding: 16px;
  background-color: var(--c-panel);
  border: 1px solid var(--c-line);
  border-radius: 4px;
}

.genre-name {
  margin: 0 0 8px;
  font-size: 17px;
  color: var(--c-accent);
}

.genre-trait {
  margin: 0 0 10px;
  font-size: 13.5px;
  color: var(--c-text-dim);
}

.genre-rep {
  margin: 0;
  font-size: 13.5px;
}

/* 封面条目墙 */
.cover-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--gap);
}

.cover-card {
  display: flex;
  flex-direction: column;
  min-width: 0;
  padding: 10px;
  background-color: var(--c-panel);
  border: 1px solid var(--c-line);
  border-radius: 6px;
  transition: border-color 0.18s ease, transform 0.18s ease;
}

.cover-card:hover,
.cover-card:focus-within {
  border-color: var(--c-accent);
  transform: translateY(-3px);
}

.cover-link {
  display: block;
  color: var(--c-text);
  text-decoration: none;
}

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

.cover-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border: 1px solid var(--c-line);
  border-radius: 3px;
  background-color: var(--c-panel-soft);
}

.cover-card-tall .cover-image {
  height: 264px;
}

.cover-name {
  margin: 12px 0 8px;
  font-size: 15.5px;
  font-weight: 600;
}

.cover-meta {
  margin: 0 0 4px;
  font-size: 13px;
  color: var(--c-text-dim);
}

.cover-meta .field-name {
  margin-right: 6px;
}

/* 最近更新记录（首页） */
.update-list {
  border: 1px solid var(--c-line);
  border-radius: 4px;
  background-color: var(--c-panel);
}

.update-row {
  display: grid;
  grid-template-columns: 96px minmax(0, 1fr) 110px 120px;
  gap: 12px;
  align-items: center;
  padding: 11px 16px;
  border-bottom: 1px solid var(--c-line);
  font-size: 14px;
}

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

.update-date {
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--c-text-dim);
}

.update-entry,
.update-name {
  min-width: 0;
}

.update-genre,
.update-status {
  font-size: 13px;
  color: var(--c-text-dim);
}

.update-progress {
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--c-gold);
  text-align: right;
}

/* 人气榜单速览（首页） */
.rank-list {
  border: 1px solid var(--c-line);
  border-radius: 4px;
  background-color: var(--c-panel);
}

.rank-item {
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  padding: 13px 16px;
  border-bottom: 1px solid var(--c-line);
  transition: border-color 0.18s ease, transform 0.18s ease;
}

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

.rank-item:hover,
.rank-item:focus-within {
  border-color: var(--c-accent);
  transform: translateY(-2px);
}

.rank-index {
  font-family: var(--font-mono);
  font-size: 18px;
  color: var(--c-gold);
}

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

.rank-name {
  margin: 0 0 4px;
  font-size: 15.5px;
}

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

/* 站内栏目索引（首页五列） */
.index-columns {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 16px;
}

.index-col {
  min-width: 0;
  padding: 14px;
  background-color: var(--c-panel);
  border: 1px solid var(--c-line);
  border-radius: 4px;
}

.index-name {
  margin: 0 0 8px;
  font-size: 15px;
}

.index-desc {
  margin: 0;
  font-size: 13px;
  color: var(--c-text-dim);
}

/* --------------------------------------------------------------------------
   pages：题材分类
   -------------------------------------------------------------------------- */
.genre-overview {
  margin-bottom: 40px;
}

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

.genre-column {
  min-width: 0;
  padding: 16px;
  background-color: var(--c-panel);
  border: 1px solid var(--c-line);
  border-radius: 4px;
}

.genre-column .genre-figure {
  margin: 0 0 12px;
  aspect-ratio: 16 / 10;
}

.genre-note {
  margin: 0 0 10px;
  font-size: 13.5px;
  color: var(--c-text-dim);
}

.genre-list-section {
  margin-bottom: 40px;
}

.entry-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.entry-card {
  min-width: 0;
  padding: 14px 16px;
  background-color: var(--c-panel);
  border: 1px solid var(--c-line);
  border-radius: 4px;
}

.entry-name {
  margin: 0 0 8px;
  font-size: 15.5px;
}

.entry-meta {
  margin: 0 0 4px;
  font-size: 13px;
  color: var(--c-text-dim);
}

.entry-meta .entry-field {
  margin-right: 6px;
}

.browse-tips {
  padding: 22px;
  background-color: var(--c-panel-soft);
  border: 1px solid var(--c-line);
  border-radius: 4px;
}

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

.browse-tips p {
  margin: 0 0 10px;
  color: var(--c-text-dim);
}

.browse-tips p:last-child {
  margin-bottom: 0;
}

/* --------------------------------------------------------------------------
   pages：最近更新
   -------------------------------------------------------------------------- */
.page-media {
  margin-bottom: 32px;
  aspect-ratio: 21 / 9;
}

.updates-section,
.rhythm-section,
.field-section,
.related-section {
  margin-bottom: 40px;
}

.month-group {
  margin-bottom: 26px;
}

.month-title {
  margin: 0 0 10px;
  padding: 8px 12px;
  font-size: 15px;
  letter-spacing: 0.06em;
  color: var(--c-accent);
  background-color: var(--c-panel-soft);
  border: 1px solid var(--c-line);
  border-left: 3px solid var(--c-accent);
  border-radius: 2px;
}

.updates-section .update-row {
  grid-template-columns: 96px minmax(0, 1fr) 110px 110px 120px;
}

.rhythm-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--gap);
}

.rhythm-item {
  min-width: 0;
  padding: 16px;
  background-color: var(--c-panel);
  border: 1px solid var(--c-line);
  border-radius: 4px;
}

.rhythm-item-title {
  margin: 0 0 8px;
  font-size: 15.5px;
  color: var(--c-accent);
}

.rhythm-item-text {
  margin: 0;
  font-size: 13.5px;
  color: var(--c-text-dim);
}

.field-list {
  margin: 0;
  border: 1px solid var(--c-line);
  border-radius: 4px;
  background-color: var(--c-panel);
}

.field-item {
  display: grid;
  grid-template-columns: 150px minmax(0, 1fr);
  gap: 16px;
  padding: 14px 16px;
  border-bottom: 1px solid var(--c-line);
}

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

.field-item .field-name {
  margin: 0;
  color: var(--c-accent);
}

.field-item .field-desc {
  margin: 0;
  font-size: 13.5px;
  color: var(--c-text-dim);
}

.field-more {
  margin: 16px 0 0;
  font-family: var(--font-mono);
  font-size: 13px;
}

.related-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--gap);
}

.related-item {
  min-width: 0;
  padding: 16px;
  background-color: var(--c-panel);
  border: 1px solid var(--c-line);
  border-radius: 4px;
}

.related-item a {
  display: block;
  margin-bottom: 6px;
  font-family: var(--font-mono);
  font-size: 15px;
}

.related-note {
  display: block;
  font-size: 13px;
  color: var(--c-text-dim);
}

/* --------------------------------------------------------------------------
   pages：人气榜单
   -------------------------------------------------------------------------- */
.ranking-section,
.ranking-basis,
.ranking-genre,
.section-index {
  margin-bottom: 40px;
}

.ranking-list {
  border: 1px solid var(--c-line);
  border-radius: 4px;
  background-color: var(--c-panel);
}

.ranking-item {
  display: grid;
  grid-template-columns: 60px minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  padding: 14px 18px;
  border-bottom: 1px solid var(--c-line);
  transition: border-color 0.18s ease, transform 0.18s ease;
}

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

.ranking-item:hover,
.ranking-item:focus-within {
  border-color: var(--c-accent);
  transform: translateY(-2px);
}

.ranking-rank {
  font-family: var(--font-mono);
  font-size: 20px;
  color: var(--c-gold);
}

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

.ranking-name {
  margin: 0 0 6px;
  font-size: 16px;
}

.ranking-field {
  margin: 0 0 6px;
  font-size: 13px;
  color: var(--c-text-dim);
}

.ranking-field .field-label {
  margin-right: 6px;
}

.ranking-note {
  margin: 0;
  font-size: 13.5px;
  color: var(--c-text-dim);
}

.ranking-basis > p,
.ranking-genre > p {
  color: var(--c-text-dim);
}

.basis-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin: 16px 0;
}

.basis-item {
  min-width: 0;
  padding: 12px 14px;
  background-color: var(--c-panel-soft);
  border: 1px solid var(--c-line);
  border-left: 3px solid var(--c-accent);
  border-radius: 3px;
  font-size: 13.5px;
  color: var(--c-text-dim);
}

.genre-pair-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--gap);
  margin: 18px 0;
}

.genre-pair {
  min-width: 0;
  padding: 16px;
  background-color: var(--c-panel);
  border: 1px solid var(--c-line);
  border-radius: 4px;
}

.genre-pair-title {
  margin: 0 0 8px;
  font-size: 15.5px;
  color: var(--c-accent);
}

.genre-pair-text {
  margin: 0;
  font-size: 13.5px;
  color: var(--c-text-dim);
}

.section-index-list {
  border: 1px solid var(--c-line);
  border-radius: 4px;
  background-color: var(--c-panel);
}

.section-index-item {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--c-line);
}

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

.section-index-item a {
  font-family: var(--font-mono);
  font-size: 14px;
}

.section-index-note {
  font-size: 13px;
  color: var(--c-text-dim);
}

/* --------------------------------------------------------------------------
   pages：阅读说明
   -------------------------------------------------------------------------- */
.page-figure {
  margin-bottom: 32px;
  aspect-ratio: 21 / 9;
}

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

.field-table {
  border: 1px solid var(--c-line);
  border-radius: 4px;
  background-color: var(--c-panel);
}

.field-row {
  display: grid;
  grid-template-columns: 160px minmax(0, 1fr);
  gap: 18px;
  padding: 14px 16px;
  border-bottom: 1px solid var(--c-line);
}

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

.field-row .field-name {
  margin: 0;
  color: var(--c-accent);
}

.field-row .field-desc {
  margin: 0;
  font-size: 13.5px;
  color: var(--c-text-dim);
}

.guide-prose p {
  max-width: 860px;
  color: var(--c-text-dim);
}

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

.stats-col {
  min-width: 0;
  padding: 16px;
  background-color: var(--c-panel);
  border: 1px solid var(--c-line);
  border-radius: 4px;
}

.stats-title {
  margin: 0 0 8px;
  font-size: 15.5px;
  color: var(--c-accent);
}

.stats-text {
  margin: 0;
  font-size: 13.5px;
  color: var(--c-text-dim);
}

.guide-note {
  margin: 16px 0 0;
  padding: 12px 14px;
  background-color: var(--c-panel-soft);
  border: 1px solid var(--c-line);
  border-left: 3px solid var(--c-gold);
  border-radius: 3px;
  font-size: 13.5px;
  color: var(--c-text-dim);
}

.boundary-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--gap);
}

.boundary-item {
  min-width: 0;
  padding: 16px;
  background-color: var(--c-panel);
  border: 1px solid var(--c-line);
  border-radius: 4px;
}

.boundary-title {
  margin: 0 0 8px;
  font-size: 15.5px;
  color: var(--c-accent);
}

.boundary-text {
  margin: 0;
  font-size: 13.5px;
  color: var(--c-text-dim);
}

.faq-list {
  border: 1px solid var(--c-line);
  border-radius: 4px;
  background-color: var(--c-panel);
  overflow: hidden;
}

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

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

.faq-question {
  padding: 14px 16px;
  font-family: var(--font-mono);
  font-size: 14.5px;
  color: var(--c-text);
  cursor: pointer;
}

.faq-question:hover {
  color: var(--c-accent);
}

.faq-answer {
  padding: 0 16px 14px;
}

.faq-answer p {
  margin: 0;
  font-size: 13.5px;
  color: var(--c-text-dim);
}

.guide-next-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--gap);
}

.guide-next-item {
  min-width: 0;
  padding: 14px 16px;
  background-color: var(--c-panel);
  border: 1px solid var(--c-line);
  border-radius: 4px;
}

.guide-next-item a {
  font-family: var(--font-mono);
  font-size: 14.5px;
}

/* --------------------------------------------------------------------------
   pages：404
   -------------------------------------------------------------------------- */
.error-main {
  width: 100%;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 48px 24px 56px;
}

.error-panel {
  padding: 32px 28px;
  background-color: var(--c-panel);
  border: 1px solid var(--c-line);
  border-radius: 6px;
  margin-bottom: 36px;
}

.error-code {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--c-gold);
}

.error-title {
  margin: 0 0 12px;
  font-size: 30px;
}

.error-desc {
  margin: 0 0 22px;
  max-width: 720px;
  color: var(--c-text-dim);
}

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

.btn {
  display: inline-block;
  min-height: 44px;
  padding: 11px 20px;
  font-family: var(--font-mono);
  font-size: 14px;
  border-radius: 4px;
  border: 1px solid var(--c-line);
  text-decoration: none;
}

.btn-primary {
  background-color: var(--c-accent);
  border-color: var(--c-accent);
  color: #0f1a2b;
}

.btn-primary:hover,
.btn-primary:focus-visible {
  background-color: var(--c-text);
  border-color: var(--c-text);
  color: #0f1a2b;
  text-decoration: none;
}

.btn-ghost {
  background-color: transparent;
  color: var(--c-text);
}

.btn-ghost:hover,
.btn-ghost:focus-visible {
  border-color: var(--c-accent);
  color: var(--c-accent);
  text-decoration: none;
}

.error-index .section-title {
  margin-bottom: 14px;
}

.index-list {
  border: 1px solid var(--c-line);
  border-radius: 4px;
  background-color: var(--c-panel);
}

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

.index-list li:last-child {
  border-bottom: 0;
}

.index-list a {
  display: block;
  padding: 13px 16px;
  font-family: var(--font-mono);
  font-size: 14px;
}

.index-list a:hover,
.index-list a:focus-visible {
  background-color: var(--c-panel-soft);
  text-decoration: none;
}

/* --------------------------------------------------------------------------
   responsive：900px 与 600px 两档
   -------------------------------------------------------------------------- */
@media (max-width: 900px) {
  .header-inner {
    padding: 12px 16px;
  }

  .nav-toggle {
    display: flex;
  }

  .site-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--c-panel);
    border-bottom: 1px solid var(--c-line);
    padding: 0 16px;
  }

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

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

  .nav-link {
    display: block;
    min-height: 48px;
    padding: 12px 4px;
    border-bottom: 1px solid var(--c-line);
  }

  .nav-link.is-current {
    border-bottom-color: var(--c-line);
    color: var(--c-accent);
  }

  .inner-main,
  .home-main > section,
  .error-main {
    padding-left: 16px;
    padding-right: 16px;
  }

  .footer-inner {
    grid-template-columns: minmax(0, 1fr);
    gap: 22px;
    padding: 28px 16px 18px;
  }

  .footer-copyright {
    padding: 12px 16px 22px;
  }

  .page-title,
  .hero-title,
  .error-title {
    font-size: 22px;
  }

  .section-title {
    font-size: 18px;
  }

  .hero-inner {
    grid-template-columns: minmax(0, 1fr);
    gap: 24px;
    padding: 20px;
  }

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

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

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

  .cover-image,
  .cover-card-tall .cover-image {
    height: 170px;
  }

  .update-row,
  .updates-section .update-row {
    grid-template-columns: 84px minmax(0, 1fr);
    row-gap: 4px;
  }

  .update-progress {
    text-align: left;
  }

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

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

  .rhythm-list,
  .related-list,
  .boundary-list,
  .guide-next-list,
  .genre-pair-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .field-item,
  .field-row {
    grid-template-columns: minmax(0, 1fr);
    gap: 6px;
  }
}

@media (max-width: 600px) {
  .brand-slogan {
    display: none;
  }

  .site-factbar {
    padding: 8px 16px;
    font-size: 12px;
    text-align: left;
  }

  .genre-columns,
  .genre-grid,
  .rhythm-list,
  .related-list,
  .boundary-list,
  .guide-next-list,
  .genre-pair-grid,
  .index-columns {
    grid-template-columns: minmax(0, 1fr);
  }

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

  .cover-image,
  .cover-card-tall .cover-image {
    height: 140px;
  }

  .cover-name {
    font-size: 14px;
  }

  .rank-item,
  .ranking-item {
    grid-template-columns: 44px minmax(0, 1fr);
    padding: 12px 14px;
  }

  .rank-index,
  .ranking-rank {
    font-size: 16px;
  }

  .page-media,
  .page-figure {
    aspect-ratio: 16 / 9;
  }

  .hero-figure {
    aspect-ratio: 16 / 10;
  }
}