:root {
  --color-bg: #ffffff;
  --color-ink: #1f2421;
  --color-ink-soft: #4a534d;
  --color-ink-mute: #6d7770;
  --color-line: #e6e8e4;
  --color-line-strong: #d3d8d2;
  --color-surface: #f7f9f6;
  --color-surface-2: #eef2ec;
  --color-moss: #4f7a4a;
  --color-moss-soft: #e6efe3;
  --color-ochre: #b26a3c;
  --color-ochre-soft: #f6e9e0;
  --color-violet: #6e5a8c;
  --color-violet-soft: #ece7f3;
  --color-indigo: #3a5a80;
  --color-indigo-soft: #e4ecf4;
  --font-sans: "Source Han Sans SC", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-mono: "SFMono-Regular", "JetBrains Mono", Consolas, "Liberation Mono", Menlo, monospace;
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 8px;
  --shadow-card: 0 1px 2px rgba(31, 36, 33, 0.05);
  --shadow-hover: 0 6px 18px rgba(31, 36, 33, 0.10);
  --container: 1180px;
  --reading: 760px;
  --header-h: 66px;
}

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

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

body.site-body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-ink);
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.75;
  font-weight: 400;
}

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

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

a:hover,
a:focus-visible {
  color: var(--color-ochre);
}

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

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

p {
  margin: 0 0 0.9em;
}

p:last-child {
  margin-bottom: 0;
}

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

figure {
  margin: 0;
}

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

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

/* =========================================================
   layout：全站骨架（顶部事实条 / 页头 / 导航 / 主容器 / 页脚）
   ========================================================= */

.site-notice {
  background: var(--color-surface-2);
  border-bottom: 1px solid var(--color-line);
  font-size: 13px;
  color: var(--color-ink-soft);
}

.site-notice p {
  max-width: var(--container);
  margin: 0 auto;
  padding: 8px 24px;
  line-height: 1.6;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-line);
}

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

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--color-ink);
  font-weight: 700;
  font-size: 17px;
  letter-spacing: 0;
  flex: 0 0 auto;
}

.brand:hover,
.brand:focus-visible {
  color: var(--color-moss);
}

.brand-mark {
  width: 26px;
  height: 26px;
  border-radius: var(--radius-sm);
  background: var(--color-moss);
  box-shadow: inset 0 0 0 4px #ffffff, inset 0 0 0 5px var(--color-moss);
}

.brand-text {
  white-space: nowrap;
}

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

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

.nav-list li {
  display: block;
}

.nav-list a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 14px;
  border-radius: var(--radius-md);
  color: var(--color-ink-soft);
  font-size: 15px;
  white-space: nowrap;
}

.nav-list a:hover,
.nav-list a:focus-visible {
  background: var(--color-surface);
  color: var(--color-ink);
}

.nav-list a.is-current {
  color: var(--color-moss);
  font-weight: 700;
  background: var(--color-moss-soft);
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 0;
  margin-left: auto;
  border: 1px solid var(--color-line-strong);
  border-radius: var(--radius-md);
  background: var(--color-bg);
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
}

.nav-toggle-bar {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--color-ink);
  border-radius: 1px;
}

.site-main {
  display: block;
  padding: 0 0 48px;
}

.home-main {
  padding-bottom: 56px;
}

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

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: 20px 0 0;
  font-size: 13px;
  color: var(--color-ink-mute);
}

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

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

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

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

.page-header {
  padding: 18px 0 26px;
  border-bottom: 1px solid var(--color-line);
  margin-bottom: 32px;
}

.page-title {
  font-size: 34px;
  line-height: 1.28;
  color: var(--color-ink);
  margin: 0 0 12px;
}

.page-description {
  max-width: var(--reading);
  margin: 0;
  font-size: 15px;
  color: var(--color-ink-soft);
}

.page-description a {
  color: var(--color-moss);
  border-bottom: 1px solid var(--color-moss-soft);
}

/* =========================================================
   components：通用组件（区块头 / 标签 / 索引 / 页脚 / 表格 / FAQ）
   ========================================================= */

.section-head {
  margin-bottom: 22px;
}

.section-title {
  font-size: 22px;
  line-height: 1.4;
  margin: 0 0 8px;
}

.section-desc,
.section-lead,
.section-note,
.section-intro {
  max-width: var(--reading);
  margin: 0;
  font-size: 14px;
  color: var(--color-ink-mute);
}

.section-more {
  margin: 18px 0 0;
  font-size: 14px;
}

.section-more a {
  color: var(--color-moss);
  font-weight: 700;
}

.tag {
  display: inline-flex;
  align-items: center;
  padding: 1px 8px;
  border-radius: var(--radius-sm);
  font-size: 12px;
  line-height: 1.7;
  font-family: var(--font-mono);
  white-space: nowrap;
  background: var(--color-surface-2);
  color: var(--color-ink-soft);
}

.tag-daily {
  background: var(--color-moss-soft);
  color: #3d6139;
}

.tag-action {
  background: var(--color-ochre-soft);
  color: #8b4f27;
}

.tag-mystery {
  background: var(--color-violet-soft);
  color: #584676;
}

.tag-healing {
  background: var(--color-indigo-soft);
  color: #2f4c6e;
}

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

.index-list li {
  display: block;
}

.index-list a {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 10px 12px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  color: var(--color-ink-soft);
  font-size: 14px;
  text-align: center;
}

.index-list a:hover,
.index-list a:focus-visible {
  border-color: var(--color-moss);
  color: var(--color-moss);
  background: var(--color-moss-soft);
}

.inner-index {
  margin-top: 44px;
  padding-top: 28px;
  border-top: 1px solid var(--color-line);
}

.inner-index .section-title {
  margin-bottom: 18px;
}

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

.field-table caption,
.field-caption {
  caption-side: top;
  text-align: left;
  padding: 0 0 10px;
  font-size: 13px;
  color: var(--color-ink-mute);
}

.field-table th,
.field-table td {
  padding: 11px 14px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--color-line);
}

.field-table thead th {
  background: var(--color-surface-2);
  color: var(--color-ink);
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
}

.field-table tbody th {
  width: 30%;
  min-width: 120px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--color-ink);
  background: var(--color-surface);
}

.field-table tbody td {
  color: var(--color-ink-soft);
}

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

.faq-item {
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  background: var(--color-bg);
  margin-bottom: 10px;
}

.faq-item summary {
  list-style: none;
  padding: 14px 44px 14px 16px;
  position: relative;
  font-weight: 700;
  font-size: 15px;
  cursor: pointer;
  color: var(--color-ink);
}

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

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

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

.faq-item[open] summary {
  border-bottom: 1px solid var(--color-line);
}

.faq-item p {
  padding: 13px 16px;
  margin: 0;
  font-size: 14px;
  color: var(--color-ink-soft);
}

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

.footer-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 40px 24px 24px;
  display: grid;
  grid-template-columns: minmax(240px, 1.4fr) repeat(3, minmax(140px, 1fr));
  gap: 28px 32px;
}

.footer-name {
  font-size: 16px;
  font-weight: 700;
  margin: 0 0 8px;
}

.footer-desc {
  font-size: 13px;
  color: var(--color-ink-mute);
  margin: 0;
  max-width: 340px;
}

.footer-title {
  font-size: 14px;
  margin: 0 0 12px;
  color: var(--color-ink);
}

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

.footer-list a {
  color: var(--color-ink-soft);
  font-size: 14px;
}

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

.footer-copy {
  max-width: var(--container);
  margin: 0 auto;
  padding: 16px 24px 28px;
  border-top: 1px solid var(--color-line);
  font-size: 13px;
  color: var(--color-ink-mute);
}

/* =========================================================
   pages：首页
   ========================================================= */

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

.hero-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 40px 24px 44px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr) minmax(240px, 0.72fr);
  gap: 32px;
  align-items: start;
}

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

.hero-eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-moss);
  margin: 0 0 12px;
  letter-spacing: 0;
}

.hero-title {
  font-size: 34px;
  line-height: 1.3;
  margin: 0 0 14px;
}

.hero-lead {
  font-size: 15px;
  color: var(--color-ink-soft);
  margin: 0 0 20px;
  max-width: 520px;
}

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

.hero-path a {
  display: block;
  padding: 11px 14px;
  border: 1px solid var(--color-line-strong);
  border-radius: var(--radius-md);
  background: var(--color-bg);
  color: var(--color-ink);
  font-size: 14px;
  font-weight: 700;
}

.hero-path a:hover,
.hero-path a:focus-visible {
  border-color: var(--color-moss);
  color: var(--color-moss);
  box-shadow: var(--shadow-card);
}

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

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

.hero-caption {
  margin-top: 10px;
  font-size: 13px;
  color: var(--color-ink-mute);
}

.hero-aside {
  min-width: 0;
  background: var(--color-bg);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  padding: 18px 18px 16px;
}

.hero-aside-title {
  font-size: 17px;
  margin: 0 0 12px;
}

.hero-recent-list {
  display: grid;
  gap: 8px;
}

.hero-recent-item {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
  padding-bottom: 8px;
  border-bottom: 1px dashed var(--color-line);
}

.hero-recent-item:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.recent-name {
  font-size: 14px;
  color: var(--color-ink);
  min-width: 0;
}

.recent-meta {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-ink-mute);
  white-space: nowrap;
}

.hero-aside-more {
  margin: 14px 0 0;
  font-size: 13px;
}

.home-topics,
.home-wall,
.home-updates,
.home-ranking,
.home-guide,
.home-index {
  max-width: var(--container);
  margin: 0 auto;
  padding: 44px 24px 0;
}

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

.topic-col {
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  background: var(--color-bg);
  padding: 18px 16px;
  border-top: 3px solid var(--color-line-strong);
}

.topic-col.topic-daily {
  border-top-color: var(--color-moss);
}

.topic-col.topic-action {
  border-top-color: var(--color-ochre);
}

.topic-col.topic-mystery {
  border-top-color: var(--color-violet);
}

.topic-col.topic-healing {
  border-top-color: var(--color-indigo);
}

.topic-name {
  font-size: 17px;
  margin: 0 0 8px;
}

.topic-feature {
  font-size: 13px;
  color: var(--color-ink-mute);
  margin: 0 0 14px;
  min-height: 44px;
}

.topic-samples {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.topic-sample {
  min-width: 0;
}

.topic-sample img {
  width: 100%;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-line);
}

.sample-name {
  display: block;
  margin-top: 6px;
  font-size: 12px;
  color: var(--color-ink-soft);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

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

.wall-card {
  min-width: 0;
  background: var(--color-bg);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  padding: 10px;
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}

.wall-card:hover,
.wall-card:focus-within {
  transform: translateY(-3px);
  box-shadow: var(--shadow-hover);
  border-color: var(--color-moss);
}

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

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

.wall-card-tall img {
  aspect-ratio: 3 / 4;
  height: 100%;
}

.wall-card-wide {
  grid-column: span 2;
  display: grid;
  grid-template-columns: 96px minmax(0, 1fr);
  grid-template-areas:
    "cover name"
    "cover meta";
  align-content: start;
  column-gap: 12px;
}

.wall-card-wide img {
  grid-area: cover;
  width: 96px;
  height: 128px;
  aspect-ratio: 3 / 4;
}

.wall-card-wide .wall-name {
  grid-area: name;
  align-self: end;
}

.wall-card-wide .wall-meta {
  grid-area: meta;
  align-self: start;
}

.wall-name {
  font-size: 14px;
  margin: 9px 0 6px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.wall-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0;
  min-width: 0;
}

.wall-state {
  font-size: 12px;
  color: var(--color-ink-mute);
  font-family: var(--font-mono);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.update-list {
  display: grid;
  gap: 22px;
}

.update-group {
  border-left: 3px solid var(--color-moss-soft);
  padding-left: 16px;
}

.update-date {
  font-size: 15px;
  font-family: var(--font-mono);
  color: var(--color-moss);
  margin: 0 0 10px;
}

.update-rows {
  display: grid;
  gap: 8px;
}

.update-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto auto;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  background: var(--color-bg);
}

.update-name {
  font-size: 14px;
  color: var(--color-ink);
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.update-progress {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-ink-mute);
  white-space: nowrap;
}

.rank-list {
  display: grid;
  gap: 10px;
  counter-reset: rank;
}

.rank-item {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr) auto;
  align-items: center;
  gap: 14px;
  padding: 12px 16px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  background: var(--color-bg);
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}

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

.rank-no {
  font-family: var(--font-mono);
  font-size: 18px;
  font-weight: 700;
  color: var(--color-ochre);
  text-align: center;
}

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

.rank-name {
  font-size: 15px;
  margin: 0 0 3px;
}

.rank-reason {
  margin: 0;
  font-size: 13px;
  color: var(--color-ink-mute);
}

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

.guide-col {
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  padding: 20px 20px 18px;
}

.guide-col-title {
  font-size: 17px;
  margin: 0 0 10px;
}

.guide-points {
  display: grid;
  gap: 8px;
  margin-top: 12px;
}

.guide-points li {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  color: var(--color-ink-soft);
}

.guide-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-moss);
}

.home-index {
  padding-top: 48px;
}

.index-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 14px;
}

.index-cell {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 16px 14px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  min-width: 0;
}

.index-cell:hover,
.index-cell:focus-visible {
  border-color: var(--color-moss);
  background: var(--color-moss-soft);
}

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

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

/* =========================================================
   pages：题材目录
   ========================================================= */

.topic-intro {
  margin-bottom: 40px;
}

.topic-intro .section-title {
  margin-bottom: 10px;
}

.topic-intro .section-lead {
  margin-bottom: 22px;
}

.topic-column {
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  background: var(--color-bg);
  padding: 18px 16px;
  border-top: 3px solid var(--color-line-strong);
}

.topic-column--daily {
  border-top-color: var(--color-moss);
}

.topic-column--action {
  border-top-color: var(--color-ochre);
}

.topic-column--mystery {
  border-top-color: var(--color-violet);
}

.topic-column--healing {
  border-top-color: var(--color-indigo);
}

.topic-points {
  display: grid;
  gap: 8px;
  margin-top: 12px;
}

.topic-points li {
  position: relative;
  padding-left: 16px;
  font-size: 13px;
  color: var(--color-ink-soft);
}

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

.topic-column--daily .topic-points li::before {
  background: var(--color-moss);
}

.topic-column--action .topic-points li::before {
  background: var(--color-ochre);
}

.topic-column--mystery .topic-points li::before {
  background: var(--color-violet);
}

.topic-column--healing .topic-points li::before {
  background: var(--color-indigo);
}

.topic-works {
  margin-bottom: 40px;
}

.topic-works .section-title {
  margin-bottom: 10px;
}

.topic-works .section-lead {
  margin-bottom: 26px;
}

.topic-work-group {
  margin-bottom: 30px;
}

.topic-work-group:last-child {
  margin-bottom: 0;
}

.work-group-title {
  font-size: 17px;
  margin: 0 0 14px;
  padding-left: 12px;
  border-left: 4px solid var(--color-line-strong);
}

.topic-work-group--daily .work-group-title {
  border-left-color: var(--color-moss);
}

.topic-work-group--action .work-group-title {
  border-left-color: var(--color-ochre);
}

.topic-work-group--mystery .work-group-title {
  border-left-color: var(--color-violet);
}

.topic-work-group--healing .work-group-title {
  border-left-color: var(--color-indigo);
}

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

.work-card {
  min-width: 0;
  background: var(--color-bg);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  padding: 10px;
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}

.work-card:hover,
.work-card:focus-within {
  transform: translateY(-3px);
  box-shadow: var(--shadow-hover);
  border-color: var(--color-moss);
}

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

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

.work-name {
  font-size: 14px;
  margin: 9px 0 6px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.work-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin: 0;
  min-width: 0;
}

.work-topic {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-ink-mute);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.work-status {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-moss);
  white-space: nowrap;
}

.topic-link-note {
  padding-top: 4px;
}

.topic-link-note .section-title {
  margin-bottom: 18px;
}

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

.note-column {
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  padding: 16px;
  min-width: 0;
}

.note-subtitle {
  font-size: 15px;
  margin: 0 0 8px;
}

.note-column p {
  font-size: 13px;
  color: var(--color-ink-soft);
  margin: 0;
}

/* =========================================================
   pages：更新日历
   ========================================================= */

.updates-overview {
  margin-bottom: 40px;
}

.updates-overview h2 {
  font-size: 22px;
  margin: 0 0 16px;
}

.updates-figure {
  margin: 0 0 16px;
  max-width: var(--reading);
}

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

.updates-figure figcaption {
  margin-top: 8px;
  font-size: 13px;
  color: var(--color-ink-mute);
}

.updates-overview p {
  max-width: var(--reading);
  font-size: 14px;
  color: var(--color-ink-soft);
}

.updates-groups {
  margin-bottom: 40px;
}

.updates-groups h2 {
  font-size: 22px;
  margin: 0 0 8px;
}

.updates-groups .section-note {
  margin-bottom: 24px;
}

.updates-day {
  border-left: 3px solid var(--color-moss-soft);
  padding-left: 16px;
  margin-bottom: 24px;
}

.updates-day:last-child {
  margin-bottom: 0;
}

.updates-date {
  font-size: 15px;
  font-family: var(--font-mono);
  color: var(--color-moss);
  margin: 0 0 10px;
}

.updates-list {
  display: grid;
  gap: 8px;
}

.updates-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto auto;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  background: var(--color-bg);
}

.updates-name {
  font-size: 14px;
  color: var(--color-ink);
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.updates-topic {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-ink-mute);
  white-space: nowrap;
}

.updates-progress {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-moss);
  white-space: nowrap;
}

.updates-fields {
  margin-bottom: 40px;
}

.updates-fields h2 {
  font-size: 22px;
  margin: 0 0 8px;
}

.updates-fields .section-note {
  margin-bottom: 18px;
}

/* =========================================================
   pages：人气榜单
   ========================================================= */

.ranking-list-section {
  min-width: 0;
}

.ranking-list-section h2,
.ranking-method-section h2 {
  font-size: 22px;
  margin: 0 0 8px;
}

.ranking-list-section .section-intro,
.ranking-method-section .section-intro {
  margin-bottom: 22px;
}

.ranking-list {
  display: grid;
  gap: 12px;
}

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

.ranking-entry {
  display: grid;
  grid-template-columns: 46px 84px minmax(0, 1fr);
  align-items: start;
  gap: 14px;
  padding: 12px 16px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  background: var(--color-bg);
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}

.ranking-entry:hover,
.ranking-entry:focus-within {
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
  border-color: var(--color-ochre);
}

.ranking-rank {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 18px;
  font-weight: 700;
  color: var(--color-ochre);
  text-align: center;
  padding-top: 4px;
}

.ranking-cover {
  margin: 0;
  min-width: 0;
}

.ranking-cover img {
  width: 84px;
  height: 112px;
  object-fit: cover;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-line);
}

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

.ranking-name {
  font-size: 15px;
  margin: 0 0 4px;
}

.ranking-tag {
  display: inline-flex;
  align-items: center;
  padding: 1px 8px;
  margin-bottom: 6px;
  border-radius: var(--radius-sm);
  background: var(--color-surface-2);
  color: var(--color-ink-soft);
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.7;
}

.ranking-reason {
  margin: 0;
  font-size: 13px;
  color: var(--color-ink-mute);
}

.ranking-method-section {
  min-width: 0;
}

.method-list {
  display: grid;
  gap: 12px;
  margin-bottom: 22px;
}

.method-item {
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  padding: 14px 16px;
}

.method-title {
  font-size: 15px;
  margin: 0 0 6px;
}

.method-text {
  margin: 0;
  font-size: 13px;
  color: var(--color-ink-soft);
}

.ranking-figure {
  margin: 0;
}

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

.ranking-caption {
  margin-top: 8px;
  font-size: 13px;
  color: var(--color-ink-mute);
}

.section-index {
  margin-top: 44px;
  padding-top: 26px;
  border-top: 1px solid var(--color-line);
}

.section-index-title {
  font-size: 18px;
  margin: 0 0 16px;
}

.section-index-list {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.section-index-item {
  min-width: 0;
}

.section-index-item a {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 10px 12px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  color: var(--color-ink-soft);
  font-size: 14px;
  text-align: center;
}

.section-index-item a:hover,
.section-index-item a:focus-visible {
  border-color: var(--color-moss);
  color: var(--color-moss);
  background: var(--color-moss-soft);
}

/* =========================================================
   pages：阅读说明
   ========================================================= */

.page-content {
  min-width: 0;
}

.page-sidebar {
  min-width: 0;
  display: grid;
  gap: 16px;
  align-content: start;
}

.sidebar-block {
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  padding: 16px 16px 14px;
}

.sidebar-title {
  font-size: 15px;
  margin: 0 0 10px;
}

.sidebar-terms {
  margin: 0;
  font-size: 13px;
}

.sidebar-terms dt {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-moss);
  margin-top: 10px;
}

.sidebar-terms dt:first-child {
  margin-top: 0;
}

.sidebar-terms dd {
  margin: 2px 0 0;
  color: var(--color-ink-soft);
  line-height: 1.65;
}

.sidebar-links {
  display: grid;
  gap: 8px;
  margin: 0;
  padding: 0;
}

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

.sidebar-links a {
  font-size: 13px;
  color: var(--color-ink-soft);
}

.sidebar-links a:hover,
.sidebar-links a:focus-visible {
  color: var(--color-moss);
}

.guide-section {
  margin-bottom: 40px;
  scroll-margin-top: 84px;
}

.guide-section:last-child {
  margin-bottom: 0;
}

.guide-section h2 {
  font-size: 22px;
  margin: 0 0 12px;
}

.guide-section > p {
  max-width: var(--reading);
  font-size: 14px;
  color: var(--color-ink-soft);
}

.guide-figure {
  margin: 18px 0;
  max-width: var(--reading);
}

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

.guide-figure figcaption {
  margin-top: 8px;
  font-size: 13px;
  color: var(--color-ink-mute);
}

.guide-fields .field-table {
  margin: 16px 0;
}

.rule-list {
  display: grid;
  gap: 12px;
  margin: 16px 0;
}

.rule-item {
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  padding: 14px 16px;
}

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

.rule-item p {
  margin: 0;
  font-size: 13px;
  color: var(--color-ink-soft);
}

.boundary-columns {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  margin-top: 16px;
}

.boundary-col {
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  padding: 16px;
  min-width: 0;
}

.boundary-col h3 {
  font-size: 15px;
  margin: 0 0 8px;
}

.boundary-col p {
  font-size: 13px;
  color: var(--color-ink-soft);
}

.boundary-list,
.path-list {
  display: grid;
  gap: 8px;
  margin: 12px 0 0;
}

.boundary-list li,
.path-list li {
  position: relative;
  padding-left: 16px;
  font-size: 13px;
  color: var(--color-ink-soft);
}

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

.guide-faq details {
  margin-bottom: 10px;
}

.site-index-list {
  display: grid;
  gap: 10px;
  margin-top: 16px;
}

.site-index-item {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 14px;
  padding: 11px 14px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  background: var(--color-bg);
  min-width: 0;
}

.site-index-item a {
  font-size: 14px;
  font-weight: 700;
  color: var(--color-ink);
  min-width: 0;
}

.site-index-item a:hover,
.site-index-item a:focus-visible {
  color: var(--color-moss);
}

.site-index-item span {
  font-size: 13px;
  color: var(--color-ink-mute);
  text-align: right;
}

/* =========================================================
   pages：404
   ========================================================= */

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

.error-block {
  padding: 56px 0 36px;
  max-width: 640px;
}

.error-code {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--color-ochre);
  margin: 0 0 12px;
}

.error-block h1 {
  font-size: 34px;
  margin: 0 0 14px;
}

.error-text {
  font-size: 15px;
  color: var(--color-ink-soft);
  max-width: 560px;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 20px;
  border-radius: var(--radius-md);
  font-size: 14px;
  font-weight: 700;
  border: 1px solid transparent;
}

.btn-primary {
  background: var(--color-moss);
  border-color: var(--color-moss);
  color: #ffffff;
}

.btn-primary:hover,
.btn-primary:focus-visible {
  background: #3f6339;
  border-color: #3f6339;
  color: #ffffff;
}

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

.btn-ghost:hover,
.btn-ghost:focus-visible {
  border-color: var(--color-moss);
  color: var(--color-moss);
}

.error-links {
  padding-top: 28px;
  border-top: 1px solid var(--color-line);
}

.error-links h2 {
  font-size: 18px;
  margin: 0 0 16px;
}

.error-link-list {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.error-link-list a {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 10px 12px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  color: var(--color-ink-soft);
  font-size: 14px;
  text-align: center;
}

.error-link-list a:hover,
.error-link-list a:focus-visible {
  border-color: var(--color-moss);
  color: var(--color-moss);
  background: var(--color-moss-soft);
}

/* =========================================================
   pages：人气榜单 / 阅读说明的正文与侧栏布局
   ========================================================= */

.page-ranking .page-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 340px);
  gap: 40px;
  align-items: start;
}

.page-guide .page-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 320px);
  gap: 44px;
  align-items: start;
}

.sidebar-left .page-layout {
  grid-template-columns: minmax(260px, 320px) minmax(0, 1fr);
}

.sidebar-left .page-content,
.sidebar-left .ranking-list-section {
  order: 2;
}

.sidebar-left .page-sidebar,
.sidebar-left .ranking-method-section {
  order: 1;
}

/* =========================================================
   responsive：平板与移动端
   ========================================================= */

@media (max-width: 1080px) {
  .hero-inner {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  }

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

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

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

@media (max-width: 960px) {
  .header-inner {
    gap: 12px;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .site-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-line);
    box-shadow: var(--shadow-hover);
    padding: 8px 16px 14px;
    margin-left: 0;
  }

  .nav-list {
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
  }

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

  .nav-list a {
    min-height: 48px;
    padding: 0 12px;
    font-size: 15px;
  }

  .hero-inner {
    grid-template-columns: minmax(0, 1fr);
    padding-top: 28px;
    padding-bottom: 32px;
  }

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

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

  .wall-card-tall {
    grid-row: auto;
  }

  .wall-card-tall img {
    aspect-ratio: 3 / 4;
    height: auto;
  }

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

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

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

  .sidebar-left .page-content,
  .sidebar-left .ranking-list-section,
  .sidebar-left .page-sidebar,
  .sidebar-left .ranking-method-section {
    order: initial;
  }

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

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

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

@media (max-width: 720px) {
  .section-head {
    margin-bottom: 18px;
  }

  .section-title,
  .updates-overview h2,
  .updates-groups h2,
  .updates-fields h2,
  .ranking-list-section h2,
  .ranking-method-section h2,
  .guide-section h2 {
    font-size: 19px;
  }

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

  .error-block h1 {
    font-size: 26px;
  }

  .home-topics,
  .home-wall,
  .home-updates,
  .home-ranking,
  .home-guide,
  .home-index {
    padding-top: 34px;
  }

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

  .topic-feature {
    min-height: 0;
  }

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

  .wall-card-wide {
    grid-column: span 2;
    grid-template-columns: 84px minmax(0, 1fr);
  }

  .wall-card-wide img {
    width: 84px;
    height: 112px;
  }

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

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

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

  .ranking-entry {
    grid-template-columns: 40px 72px minmax(0, 1fr);
    padding: 12px;
    gap: 12px;
  }

  .ranking-cover img {
    width: 72px;
    height: 96px;
  }

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

@media (max-width: 640px) {
  body.site-body {
    font-size: 14px;
  }

  .site-notice p,
  .header-inner,
  .hero-inner,
  .home-topics,
  .home-wall,
  .home-updates,
  .home-ranking,
  .home-guide,
  .home-index,
  .inner-main,
  .error-main,
  .footer-inner,
  .footer-copy {
    padding-left: 16px;
    padding-right: 16px;
  }

  .hero-title {
    font-size: 25px;
  }

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

  .update-row .update-progress,
  .updates-row .updates-progress {
    grid-column: 2;
  }

  .rank-item {
    grid-template-columns: 36px minmax(0, 1fr);
    row-gap: 6px;
  }

  .rank-item .tag {
    grid-column: 2;
    justify-self: start;
  }

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

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

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

  .footer-brand {
    grid-column: auto;
  }

  .site-index-item {
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
  }

  .site-index-item span {
    text-align: left;
  }

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

  .field-table tbody th {
    width: 34%;
    min-width: 96px;
  }
}

@media (max-width: 420px) {
  .index-grid,
  .index-list,
  .section-index-list,
  .error-link-list {
    grid-template-columns: minmax(0, 1fr);
  }

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

  .wall-card-wide {
    grid-column: auto;
  }

  .ranking-entry {
    grid-template-columns: 34px minmax(0, 1fr);
  }

  .ranking-cover {
    grid-column: 2;
  }

  .ranking-body {
    grid-column: 2;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

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