/* ==========================================================================
   樱花动漫在线看 · 全站样式
   分组：base / layout / components / pages / responsive
   ========================================================================== */

/* --------------------------------------------------------------------------
   base · 变量与基础排版
   -------------------------------------------------------------------------- */
:root {
  --ink-green: #1f3a34;
  --ink-green-deep: #162b26;
  --ink-green-soft: #2c4f47;
  --ink-gray: #2b2f33;
  --ink-gray-soft: #5a6169;
  --amber: #c9862b;
  --amber-soft: #f3e3ca;
  --vermilion: #b23a2f;
  --vermilion-soft: #f6ddd9;
  --bg-page: #f4f6f4;
  --bg-card: #ffffff;
  --bg-sunken: #edf1ed;
  --line: #d8ded9;
  --line-strong: #b9c4bb;
  --radius: 6px;
  --radius-sm: 4px;
  --shadow-card: 0 1px 2px rgba(31, 58, 52, 0.06);
  --font-sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
  --content-width: 1120px;
  --header-height: 62px;
}

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

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

body.site-body {
  margin: 0;
  padding: 0;
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.7;
  color: var(--ink-gray);
  background-color: var(--bg-page);
}

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

p {
  margin: 0;
}

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

a {
  color: var(--ink-green-soft);
  text-decoration: none;
  transition: color 0.18s ease, background-color 0.18s ease;
}

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

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

figure {
  margin: 0;
}

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

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

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

/* --------------------------------------------------------------------------
   layout · 全站骨架
   -------------------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background-color: var(--ink-green);
  border-bottom: 1px solid var(--ink-green-deep);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  width: var(--content-width);
  max-width: 92%;
  min-height: var(--header-height);
  margin: 0 auto;
  padding: 8px 0;
}

.brand-logo {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 2px;
  color: #ffffff;
  font-size: 18px;
  font-weight: 700;
}

.brand-logo:hover,
.brand-logo:focus-visible {
  color: var(--amber-soft);
}

.site-nav {
  flex: 1 1 auto;
  display: flex;
  justify-content: flex-end;
}

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

.nav-item {
  display: block;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 14px;
  color: #dfe8e3;
  font-size: 15px;
  border-bottom: 3px solid transparent;
}

.nav-link:hover,
.nav-link:focus-visible {
  color: #ffffff;
  background-color: rgba(255, 255, 255, 0.08);
}

.nav-link.is-current {
  color: #ffffff;
  border-bottom-color: var(--amber);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 0 10px;
  background-color: transparent;
  border: 1px solid rgba(255, 255, 255, 0.35);
  border-radius: var(--radius-sm);
}

.nav-toggle-bar {
  display: block;
  width: 100%;
  height: 2px;
  background-color: #ffffff;
}

.site-main {
  display: block;
  width: 100%;
}

.site-inner {
  width: var(--content-width);
  max-width: 92%;
  margin: 0 auto;
}

.inner-main {
  width: var(--content-width);
  max-width: 92%;
  margin: 0 auto;
  padding: 22px 0 56px;
}

.site-footer {
  margin-top: 40px;
  padding: 34px 0 18px;
  background-color: var(--ink-green-deep);
  color: #cfdad4;
  font-size: 14px;
}

.footer-inner {
  display: grid;
  grid-template-columns: minmax(220px, 1.4fr) repeat(3, minmax(140px, 1fr));
  gap: 26px 24px;
  width: var(--content-width);
  max-width: 92%;
  margin: 0 auto;
}

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

.footer-logo {
  color: #ffffff;
  font-size: 17px;
  font-weight: 700;
}

.footer-slogan {
  margin-top: 6px;
  color: var(--amber-soft);
  font-size: 13px;
}

.footer-about {
  margin-top: 10px;
  color: #a9b8b1;
  font-size: 13px;
  line-height: 1.75;
}

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

.footer-title {
  margin-bottom: 10px;
  color: #ffffff;
  font-size: 14px;
  font-weight: 700;
}

.footer-list li {
  margin-bottom: 6px;
}

.footer-list a {
  display: inline-block;
  min-height: 26px;
  color: #b8c6c0;
  font-size: 13px;
}

.footer-list a:hover,
.footer-list a:focus-visible {
  color: var(--amber-soft);
  text-decoration: underline;
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  width: var(--content-width);
  max-width: 92%;
  margin: 24px auto 0;
  padding-top: 14px;
  border-top: 1px solid rgba(255, 255, 255, 0.14);
}

.footer-copy {
  color: #93a49d;
  font-size: 12.5px;
}

.copy-link {
  min-height: 36px;
  padding: 0 14px;
  color: #dfe8e3;
  background-color: transparent;
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: var(--radius-sm);
}

.copy-link:hover,
.copy-link:focus-visible {
  color: #ffffff;
  border-color: var(--amber);
}

.copy-status {
  color: var(--amber-soft);
  font-size: 12.5px;
}

/* 内页通用骨架：面包屑 / 页标题区 */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  padding: 4px 0 14px;
  color: var(--ink-gray-soft);
  font-size: 13px;
}

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

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

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

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

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

.page-title {
  font-size: 30px;
  font-weight: 700;
  color: var(--ink-green);
}

.page-description {
  margin-top: 12px;
  max-width: 76ch;
  color: var(--ink-gray);
  font-size: 15px;
  line-height: 1.8;
}

.page-description a {
  color: var(--ink-green-soft);
  text-decoration: underline;
}

.page-description a:hover,
.page-description a:focus-visible {
  color: var(--amber);
}

/* --------------------------------------------------------------------------
   components · 通用元件
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 20px;
  font-size: 15px;
  font-weight: 600;
  border: 1px solid transparent;
  border-radius: var(--radius);
  text-align: center;
}

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

.btn-primary:hover,
.btn-primary:focus-visible {
  color: #ffffff;
  background-color: var(--ink-green-soft);
  border-color: var(--ink-green-soft);
}

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

.btn-ghost:hover,
.btn-ghost:focus-visible {
  color: var(--ink-green-deep);
  background-color: var(--bg-sunken);
  border-color: var(--ink-green);
}

.status-tag {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  padding: 0 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1;
  border-radius: var(--radius-sm);
  white-space: nowrap;
}

.status-tag-amber {
  color: #6d4a10;
  background-color: var(--amber-soft);
  border: 1px solid #e0c393;
}

.link-more {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  color: var(--ink-green-soft);
  font-size: 14px;
  font-weight: 600;
  border-bottom: 1px solid var(--line-strong);
}

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

.section-head {
  margin-bottom: 16px;
}

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

.section-desc {
  margin-top: 8px;
  max-width: 78ch;
  color: var(--ink-gray-soft);
  font-size: 14px;
  line-height: 1.75;
}

.section-intro {
  margin-top: 8px;
  margin-bottom: 16px;
  max-width: 78ch;
  color: var(--ink-gray-soft);
  font-size: 14px;
  line-height: 1.75;
}

.column-title {
  font-size: 17px;
  font-weight: 700;
  color: var(--ink-green);
}

.column-desc {
  margin-top: 6px;
  margin-bottom: 14px;
  color: var(--ink-gray-soft);
  font-size: 13.5px;
  line-height: 1.7;
}

.column-more {
  margin-top: 14px;
}

/* 字段口径表（dl 结构） */
.field-list,
.field-table,
.term-list {
  border-top: 1px solid var(--line);
}

.field-list dt,
.field-table dt,
.term-list dt {
  padding: 10px 0 2px;
  color: var(--ink-green);
  font-size: 14px;
  font-weight: 700;
}

.field-list dd,
.field-table dd,
.term-list dd {
  margin: 0 0 10px;
  padding-bottom: 10px;
  color: var(--ink-gray);
  font-size: 13.5px;
  line-height: 1.75;
  border-bottom: 1px solid var(--line);
}

.field-table dd:last-child,
.term-list dd:last-child {
  border-bottom: 0;
}

/* 收录边界列表 */
.scope-list,
.boundary-list {
  display: grid;
  gap: 10px;
}

.scope-item,
.boundary-item {
  position: relative;
  padding: 10px 12px 10px 30px;
  background-color: var(--bg-card);
  border: 1px solid var(--line);
  border-left: 3px solid var(--vermilion);
  border-radius: var(--radius-sm);
  color: var(--ink-gray);
  font-size: 13.5px;
  line-height: 1.7;
}

.scope-item::before,
.boundary-item::before {
  content: "";
  position: absolute;
  left: 13px;
  top: 18px;
  width: 6px;
  height: 6px;
  background-color: var(--vermilion);
  border-radius: 50%;
}

/* 下一步入口卡 */
.next-cards,
.entry-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px;
}

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

.next-card-title,
.entry-card h3 {
  font-size: 16px;
  font-weight: 700;
}

.next-card-title a,
.entry-card h3 a {
  color: var(--ink-green);
}

.next-card-title a:hover,
.next-card-title a:focus-visible,
.entry-card h3 a:hover,
.entry-card h3 a:focus-visible {
  color: var(--amber);
  text-decoration: underline;
}

.next-card-desc,
.next-card-text,
.entry-card p {
  margin-top: 8px;
  color: var(--ink-gray-soft);
  font-size: 13.5px;
  line-height: 1.75;
}

.next-card-link {
  display: inline-flex;
  align-items: center;
  align-self: flex-start;
  min-height: 32px;
  margin-top: 12px;
  color: var(--ink-green-soft);
  font-size: 13.5px;
  font-weight: 600;
  border-bottom: 1px solid var(--line-strong);
}

.next-card-link:hover,
.next-card-link:focus-visible {
  color: var(--amber);
  border-bottom-color: var(--amber);
}

/* 两栏说明区（字段 / 边界） */
.notes-columns,
.terms-columns {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 24px;
  margin-top: 18px;
}

.notes-col,
.terms-column {
  min-width: 0;
  padding: 18px;
  background-color: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.notes-subtitle,
.guide-terms .column-title {
  margin-bottom: 12px;
  font-size: 16px;
}

.notes-boundary p + p,
.terms-boundary p + p {
  margin-top: 10px;
}

/* 相关链接条 */
.related-links {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 26px;
  padding: 14px 16px;
  background-color: var(--bg-sunken);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.related-links-label {
  color: var(--ink-green);
  font-size: 13.5px;
  font-weight: 700;
}

.related-links-item {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  padding: 0 10px;
  color: var(--ink-green-soft);
  font-size: 13.5px;
  background-color: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
}

.related-links-item:hover,
.related-links-item:focus-visible {
  color: var(--amber);
  border-color: var(--amber);
}

/* --------------------------------------------------------------------------
   pages · 首页
   -------------------------------------------------------------------------- */
.site-ticker {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  flex-wrap: wrap;
  padding: 9px 0;
  background-color: var(--bg-sunken);
  border-bottom: 1px solid var(--line);
  font-size: 13px;
}

.site-ticker .ticker-text,
.site-ticker .ticker-status {
  width: var(--content-width);
  max-width: 92%;
  margin: 0 auto;
}

.site-ticker .ticker-text {
  flex: 1 1 auto;
  color: var(--ink-gray);
}

.site-ticker .ticker-status {
  flex: 0 0 auto;
  width: auto;
  max-width: none;
  color: var(--amber);
  font-family: var(--font-mono);
  font-size: 12px;
}

.home-main {
  width: var(--content-width);
  max-width: 92%;
  margin: 0 auto;
  padding-bottom: 20px;
}

.home-main > section {
  margin-top: 34px;
}

/* 首屏 */
.hero-section {
  margin-top: 26px;
}

.hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: 30px;
  align-items: center;
  padding: 26px;
  background-color: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
}

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

.hero-title {
  font-size: 30px;
  font-weight: 700;
  color: var(--ink-green);
}

.hero-lead {
  margin-top: 14px;
  color: var(--ink-gray);
  font-size: 15px;
  line-height: 1.85;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 20px;
}

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

.hero-visual img {
  width: 100%;
  height: 300px;
  object-fit: cover;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background-color: var(--bg-sunken);
}

.hero-caption {
  margin-top: 8px;
  color: var(--ink-gray-soft);
  font-size: 12.5px;
  line-height: 1.6;
}

.hero-visual .status-tag {
  position: absolute;
  top: 10px;
  right: 10px;
}

/* 题材频道速览 */
.channels-glance {
  padding: 22px;
  background-color: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.channel-rows {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--line);
}

.channel-rows .channel-row {
  display: grid;
  grid-template-columns: 62px minmax(120px, 0.9fr) minmax(160px, 1.1fr) minmax(180px, 1.4fr);
  gap: 12px;
  align-items: baseline;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
}

.channel-rows .channel-code {
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--amber);
}

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

.channel-rows .channel-fit {
  color: var(--ink-gray);
  font-size: 13.5px;
}

.channel-rows .channel-scope {
  color: var(--ink-gray-soft);
  font-size: 13px;
  line-height: 1.7;
}

.section-more {
  margin-top: 14px;
}

/* 封面墙 + 最近更新 */
.wall-updates {
  padding: 22px;
  background-color: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.wall-updates-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.55fr) minmax(280px, 1fr);
  gap: 26px;
  margin-top: 4px;
}

.wall-column,
.updates-column {
  min-width: 0;
}

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

.cover-card {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 10px;
  background-color: var(--bg-page);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.cover-card img {
  width: 100%;
  height: 150px;
  object-fit: cover;
  border-radius: var(--radius-sm);
  background-color: var(--bg-sunken);
}

.cover-name {
  color: var(--ink-green);
  font-size: 14px;
  font-weight: 700;
  line-height: 1.5;
}

.cover-channel {
  color: var(--ink-gray-soft);
  font-size: 12.5px;
}

.cover-card .status-tag {
  align-self: flex-start;
}

.update-rows {
  border-top: 1px solid var(--line);
}

.update-row {
  display: grid;
  grid-template-columns: 78px minmax(0, 1.4fr) minmax(78px, 0.8fr) minmax(64px, 0.6fr);
  gap: 10px;
  align-items: baseline;
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
}

.update-stage {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--amber);
}

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

.update-channel,
.update-type {
  color: var(--ink-gray-soft);
  font-size: 12.5px;
}

/* 排行榜 + 专题片单 */
.rank-features {
  padding: 22px;
  background-color: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.rank-features-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(260px, 1fr);
  gap: 26px;
}

.rank-column,
.feature-column {
  min-width: 0;
}

.rank-rows {
  border-top: 1px solid var(--line);
}

.rank-row {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr) minmax(0, 1.25fr);
  gap: 12px;
  align-items: baseline;
  padding: 11px 0;
  border-bottom: 1px solid var(--line);
}

.rank-num {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
  color: var(--vermilion);
}

.rank-name {
  color: var(--ink-green);
  font-size: 14.5px;
  font-weight: 700;
}

.rank-reason {
  color: var(--ink-gray-soft);
  font-size: 13px;
  line-height: 1.7;
}

.feature-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 14px;
}

.feature-card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 12px;
  background-color: var(--bg-page);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.feature-card img {
  width: 100%;
  height: 130px;
  object-fit: cover;
  border-radius: var(--radius-sm);
  background-color: var(--bg-sunken);
}

.feature-name {
  font-size: 15px;
  color: var(--ink-green);
}

.feature-desc {
  color: var(--ink-gray-soft);
  font-size: 13px;
  line-height: 1.7;
}

/* 浏览顺序四步 */
.browse-steps {
  padding: 22px;
  background-color: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.step-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
}

.step-item {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 16px;
  background-color: var(--bg-page);
  border: 1px solid var(--line);
  border-top: 3px solid var(--ink-green);
  border-radius: var(--radius);
}

.step-index {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--amber);
}

.step-name {
  font-size: 15.5px;
  color: var(--ink-green);
}

.step-desc {
  color: var(--ink-gray);
  font-size: 13.5px;
  line-height: 1.75;
}

.step-field {
  margin-top: auto;
  padding-top: 8px;
  color: var(--ink-gray-soft);
  font-size: 12.5px;
  border-top: 1px dashed var(--line-strong);
}

/* 字段口径与收录边界摘要 */
.field-scope {
  padding: 22px;
  background-color: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.field-scope-inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 26px;
  margin-top: 16px;
}

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

/* 站内栏目索引 */
.site-index {
  padding: 22px;
  background-color: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.index-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 14px;
}

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

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

.index-link {
  color: var(--ink-green);
}

.index-link:hover,
.index-link:focus-visible {
  color: var(--amber);
  text-decoration: underline;
}

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

/* --------------------------------------------------------------------------
   pages · 题材频道
   -------------------------------------------------------------------------- */
.page-channels .page-figure {
  margin-top: 18px;
}

.page-channels .page-figure img {
  width: 100%;
  height: 240px;
  object-fit: cover;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background-color: var(--bg-sunken);
}

.page-channels .page-figure figcaption {
  margin-top: 8px;
  color: var(--ink-gray-soft);
  font-size: 12.5px;
}

.channel-directory {
  margin-top: 30px;
}

.channel-directory > h2 {
  font-size: 22px;
}

.channel-list {
  display: grid;
  gap: 0;
  margin-top: 18px;
  border-top: 1px solid var(--line);
}

.channel-list .channel-row {
  display: grid;
  grid-template-columns: 56px minmax(0, 1fr);
  gap: 16px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}

.channel-list .channel-index {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--amber);
  padding-top: 2px;
}

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

.channel-body .channel-name {
  font-size: 16.5px;
}

.channel-body .channel-name a {
  color: var(--ink-green);
}

.channel-body .channel-name a:hover,
.channel-body .channel-name a:focus-visible {
  color: var(--amber);
  text-decoration: underline;
}

.channel-fields {
  display: grid;
  grid-template-columns: 96px minmax(0, 1fr);
  gap: 4px 14px;
  margin-top: 12px;
}

.channel-fields dt {
  color: var(--ink-green);
  font-size: 13.5px;
  font-weight: 700;
}

.channel-fields dd {
  margin: 0;
  color: var(--ink-gray);
  font-size: 13.5px;
  line-height: 1.75;
}

.channel-notes {
  margin-top: 34px;
}

.channel-notes > h2 {
  font-size: 22px;
}

.next-entry {
  margin-top: 34px;
}

.next-entry > h2 {
  font-size: 22px;
  margin-bottom: 16px;
}

/* --------------------------------------------------------------------------
   pages · 最近更新
   -------------------------------------------------------------------------- */
.page-updates .page-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.75fr) minmax(260px, 1fr);
  gap: 28px;
  margin-top: 26px;
  align-items: start;
}

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

.updates-main .section-title {
  font-size: 22px;
}

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

.section-figure img {
  width: 100%;
  height: 190px;
  object-fit: cover;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background-color: var(--bg-sunken);
}

.figure-caption {
  margin-top: 8px;
  color: var(--ink-gray-soft);
  font-size: 12.5px;
  line-height: 1.6;
}

.updates-stage {
  margin-bottom: 22px;
  padding: 18px;
  background-color: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.stage-title {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  font-size: 16.5px;
}

.stage-tag {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  padding: 0 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: #6d4a10;
  background-color: var(--amber-soft);
  border: 1px solid #e0c393;
  border-radius: var(--radius-sm);
}

.updates-list {
  margin-top: 12px;
  border-top: 1px solid var(--line);
}

.updates-row {
  display: grid;
  grid-template-columns: minmax(96px, 0.8fr) minmax(0, 1.7fr) minmax(72px, 0.7fr);
  gap: 12px;
  align-items: baseline;
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
}

.updates-field {
  font-size: 13px;
  line-height: 1.7;
}

.updates-channel {
  color: var(--ink-green);
  font-weight: 600;
}

.updates-direction {
  color: var(--ink-gray);
}

.updates-type {
  color: var(--ink-gray-soft);
  font-family: var(--font-mono);
  font-size: 12px;
}

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

.aside-title {
  font-size: 17px;
}

.aside-note {
  margin-top: 8px;
  color: var(--ink-gray-soft);
  font-size: 13.5px;
  line-height: 1.7;
}

.aside-list {
  margin-top: 14px;
  border-top: 1px solid var(--line);
}

.aside-item {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
}

.aside-label {
  color: var(--ink-green);
  font-size: 13.5px;
  font-weight: 600;
}

.aside-value {
  color: var(--ink-gray-soft);
  font-family: var(--font-mono);
  font-size: 12.5px;
  text-align: right;
}

.aside-hint {
  margin-top: 14px;
  font-size: 13.5px;
}

.aside-hint a {
  color: var(--ink-green-soft);
  text-decoration: underline;
}

.aside-hint a:hover,
.aside-hint a:focus-visible {
  color: var(--amber);
}

.updates-notes {
  margin-top: 34px;
}

.updates-notes > .section-title {
  font-size: 22px;
}

.updates-next {
  margin-top: 34px;
}

.updates-next > .section-title {
  font-size: 22px;
}

/* --------------------------------------------------------------------------
   pages · 排行榜
   -------------------------------------------------------------------------- */
.page-ranking .page-media {
  margin-top: 18px;
}

.page-ranking .page-media img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background-color: var(--bg-sunken);
}

.page-ranking .page-media figcaption {
  margin-top: 8px;
  color: var(--ink-gray-soft);
  font-size: 12.5px;
}

.page-ranking .page-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.8fr) minmax(260px, 1fr);
  gap: 28px;
  margin-top: 28px;
  align-items: start;
}

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

.ranking-section .section-title {
  font-size: 22px;
}

.ranking-list {
  border-top: 1px solid var(--line);
}

.ranking-row {
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr);
  gap: 14px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}

.ranking-index {
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 700;
  color: var(--vermilion);
  padding-top: 2px;
}

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

.ranking-name {
  font-size: 16px;
  color: var(--ink-green);
}

.ranking-meta {
  margin-top: 6px;
  color: var(--ink-gray-soft);
  font-size: 12.5px;
  font-family: var(--font-mono);
}

.ranking-reason {
  margin-top: 8px;
  color: var(--ink-gray);
  font-size: 13.5px;
  line-height: 1.75;
}

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

.ranking-aside > .section-title {
  font-size: 17px;
}

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

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

.aside-subtitle {
  margin-bottom: 10px;
  font-size: 15px;
}

.next-section {
  margin-top: 34px;
}

.next-section > .section-title {
  font-size: 22px;
}

.related-section {
  margin-top: 34px;
}

.related-section > .section-title {
  font-size: 22px;
}

.related-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 12px;
}

.related-item {
  padding: 12px 14px;
  background-color: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.related-item a {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  color: var(--ink-green);
  font-size: 14px;
  font-weight: 600;
}

.related-item a:hover,
.related-item a:focus-visible {
  color: var(--amber);
  text-decoration: underline;
}

/* --------------------------------------------------------------------------
   pages · 浏览说明
   -------------------------------------------------------------------------- */
.page-guide .page-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 28px;
  margin-top: 26px;
}

.guide-figure img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background-color: var(--bg-sunken);
}

.guide-steps .section-title,
.guide-terms .section-title,
.guide-faq .section-title,
.guide-next .section-title {
  font-size: 22px;
}

.guide-steps .step-list {
  margin-top: 4px;
}

.guide-steps .step-desc a {
  color: var(--ink-green-soft);
  text-decoration: underline;
}

.guide-steps .step-desc a:hover,
.guide-steps .step-desc a:focus-visible {
  color: var(--amber);
}

.guide-steps .step-field {
  color: var(--ink-gray-soft);
  font-size: 12.5px;
}

.terms-columns {
  margin-top: 4px;
}

.guide-faq {
  margin-top: 34px;
}

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

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

.faq-question {
  display: flex;
  align-items: center;
  min-height: 48px;
  padding: 12px 14px;
  color: var(--ink-green);
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  list-style: none;
}

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

.faq-question::before {
  content: "+";
  flex: 0 0 auto;
  width: 20px;
  margin-right: 8px;
  color: var(--amber);
  font-family: var(--font-mono);
  font-size: 16px;
  text-align: center;
}

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

.faq-question:hover,
.faq-question:focus-visible {
  background-color: var(--bg-sunken);
}

.faq-answer {
  padding: 0 14px 14px 42px;
  color: var(--ink-gray);
  font-size: 13.5px;
  line-height: 1.8;
}

.faq-answer p + p {
  margin-top: 8px;
}

.guide-next {
  margin-top: 34px;
}

.next-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
}

/* --------------------------------------------------------------------------
   pages · 404
   -------------------------------------------------------------------------- */
.error-main {
  width: var(--content-width);
  max-width: 92%;
  margin: 0 auto;
  padding: 56px 0 64px;
}

.error-panel {
  padding: 30px;
  background-color: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
}

.error-code {
  font-family: var(--font-mono);
  font-size: 34px;
  font-weight: 700;
  color: var(--vermilion);
  line-height: 1.2;
}

.error-title {
  margin-top: 10px;
  font-size: 26px;
  color: var(--ink-green);
}

.error-text {
  margin-top: 12px;
  max-width: 70ch;
  color: var(--ink-gray);
  font-size: 14.5px;
  line-height: 1.8;
}

.error-text + .error-text {
  margin-top: 8px;
}

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

/* --------------------------------------------------------------------------
   responsive
   -------------------------------------------------------------------------- */
@media (max-width: 1200px) {
  .hero-visual img {
    height: 270px;
  }
}

@media (max-width: 960px) {
  .footer-inner {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .hero-visual img {
    height: 240px;
  }

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

  .page-updates .page-layout,
  .page-ranking .page-layout {
    grid-template-columns: minmax(0, 1fr);
    gap: 22px;
  }

  .channel-rows .channel-row {
    grid-template-columns: 56px minmax(0, 1fr);
    gap: 4px 12px;
  }

  .channel-rows .channel-fit,
  .channel-rows .channel-scope {
    grid-column: 2;
  }
}

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

  .header-inner {
    flex-wrap: wrap;
    padding: 10px 0;
  }

  .nav-toggle {
    display: flex;
  }

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

  .nav-list {
    display: none;
    width: 100%;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    margin-top: 8px;
    border-top: 1px solid rgba(255, 255, 255, 0.18);
  }

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

  .nav-item {
    width: 100%;
  }

  .nav-link {
    width: 100%;
    min-height: 46px;
    padding: 0 4px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.12);
    border-left: 3px solid transparent;
  }

  .nav-link.is-current {
    border-bottom-color: rgba(255, 255, 255, 0.12);
    border-left-color: var(--amber);
  }

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

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

  .page-description {
    font-size: 14px;
  }

  .section-title,
  .channel-directory > h2,
  .channel-notes > h2,
  .next-entry > h2,
  .updates-notes > .section-title,
  .updates-next > .section-title,
  .ranking-section .section-title,
  .next-section > .section-title,
  .related-section > .section-title,
  .guide-steps .section-title,
  .guide-terms .section-title,
  .guide-faq .section-title,
  .guide-next .section-title {
    font-size: 18px;
  }

  .home-main > section {
    margin-top: 24px;
  }

  .hero-section {
    margin-top: 18px;
  }

  .hero-inner {
    padding: 18px;
  }

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

  .hero-visual img {
    height: 190px;
  }

  .hero-actions .btn {
    flex: 1 1 auto;
  }

  .channels-glance,
  .wall-updates,
  .rank-features,
  .browse-steps,
  .field-scope,
  .site-index {
    padding: 16px;
  }

  .channel-rows .channel-row {
    grid-template-columns: minmax(0, 1fr);
    gap: 2px;
  }

  .channel-rows .channel-fit,
  .channel-rows .channel-scope {
    grid-column: auto;
  }

  .cover-grid {
    grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
  }

  .cover-card img {
    height: 132px;
  }

  .update-row {
    grid-template-columns: minmax(0, 1fr);
    gap: 2px;
  }

  .rank-row {
    grid-template-columns: 34px minmax(0, 1fr);
    gap: 4px 10px;
  }

  .rank-reason {
    grid-column: 2;
  }

  .field-scope-inner,
  .notes-columns,
  .terms-columns {
    grid-template-columns: minmax(0, 1fr);
    gap: 18px;
  }

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

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

  .channel-fields {
    grid-template-columns: minmax(0, 1fr);
    gap: 2px;
  }

  .channel-fields dd {
    margin-bottom: 8px;
  }

  .updates-row {
    grid-template-columns: minmax(0, 1fr);
    gap: 2px;
  }

  .ranking-row {
    grid-template-columns: 36px minmax(0, 1fr);
    gap: 4px 10px;
  }

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

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

  .faq-answer {
    padding-left: 14px;
  }

  .error-main {
    padding: 34px 0 48px;
  }

  .error-panel {
    padding: 20px;
  }

  .error-code {
    font-size: 28px;
  }

  .error-title {
    font-size: 21px;
  }

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

  .footer-bottom {
    align-items: flex-start;
    flex-direction: column;
  }

  .copy-link {
    min-height: 40px;
  }
}

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

  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}