/* ==========================================================================
   九九影院最新电视剧TV · 全站样式
   分组：base / layout / components / pages / responsive
   ========================================================================== */

/* --------------------------------------------------------------------------
   base · 变量与基础
   -------------------------------------------------------------------------- */
:root {
  --bg: #12141c;
  --bg-soft: #171a24;
  --card: #1c1f2b;
  --card-hi: #232737;
  --line: #2b3040;
  --line-soft: #232838;
  --text: #f4f1ea;
  --text-dim: #a9b0be;
  --text-mute: #6c7a92;
  --accent: #e8a33d;
  --accent-soft: #3a2d18;
  --radius: 6px;
  --radius-sm: 4px;
  --wrap: 1140px;
  --prose: 760px;
  --mono: "SFMono-Regular", "Menlo", "Consolas", "Liberation Mono", monospace;
}

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

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

.site-body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", sans-serif;
  font-size: 16px;
  line-height: 1.75;
  text-rendering: optimizeLegibility;
}

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

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

a:hover,
a:focus-visible {
  text-decoration: underline;
}

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

h1, h2, h3, h4 {
  margin: 0 0 12px;
  font-weight: 700;
  line-height: 1.3;
  color: var(--text);
}

p {
  margin: 0 0 14px;
}

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

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

time {
  font-variant-numeric: tabular-nums;
}

.skip-link {
  position: absolute;
  left: 12px;
  top: -60px;
  z-index: 60;
  padding: 10px 16px;
  background: var(--accent);
  color: #1a1206;
  border-radius: var(--radius-sm);
  font-weight: 600;
}

.skip-link:focus {
  top: 12px;
}

/* --------------------------------------------------------------------------
   layout · 顶部信息条 / 页头 / 导航
   -------------------------------------------------------------------------- */
.topbar {
  background: #0d0f16;
  border-bottom: 1px solid var(--line-soft);
}

.topbar-text {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 9px 20px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--text-mute);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(18, 20, 28, 0.96);
  border-bottom: 1px solid var(--line);
}

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

.brand {
  display: flex;
  flex-direction: column;
  gap: 2px;
  color: var(--text);
  text-decoration: none;
}

.brand:hover {
  text-decoration: none;
}

.brand-name {
  font-size: 19px;
  font-weight: 700;
  line-height: 1.2;
}

.brand-slogan {
  font-size: 12px;
  color: var(--text-mute);
  line-height: 1.4;
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--card);
  color: var(--text);
  cursor: pointer;
  position: relative;
}

.nav-toggle::before {
  content: "";
  position: absolute;
  left: 12px;
  right: 12px;
  top: 15px;
  height: 2px;
  background: currentColor;
  box-shadow: 0 6px 0 currentColor, 0 12px 0 currentColor;
}

.site-nav {
  flex: 1 1 auto;
}

.nav-list {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: 6px;
}

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

.nav-link {
  display: block;
  padding: 10px 14px;
  min-height: 44px;
  display: flex;
  align-items: center;
  font-size: 15px;
  color: var(--text-dim);
  border-radius: var(--radius-sm);
  text-decoration: none;
}

.nav-link:hover {
  color: var(--text);
  background: var(--card);
  text-decoration: none;
}

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

/* --------------------------------------------------------------------------
   layout · 主内容容器与内页骨架
   -------------------------------------------------------------------------- */
.site-main {
  display: block;
}

.inner-main {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 22px 20px 56px;
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-mute);
  margin-bottom: 18px;
}

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

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

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

.page-header {
  max-width: var(--prose);
  margin-bottom: 34px;
  padding-bottom: 22px;
  border-bottom: 1px solid var(--line);
}

.page-title {
  font-size: 32px;
  font-weight: 700;
  line-height: 1.25;
  margin-bottom: 12px;
}

.page-description {
  margin: 0;
  font-size: 15px;
  color: var(--text-dim);
}

/* --------------------------------------------------------------------------
   components · 通用区块、标题、链接
   -------------------------------------------------------------------------- */
.section {
  margin-bottom: 46px;
}

.section-inner {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 20px;
}

.section-head {
  max-width: var(--prose);
  margin-bottom: 22px;
}

.section-title {
  font-size: 23px;
  font-weight: 700;
  line-height: 1.35;
  margin-bottom: 8px;
}

.section-desc,
.section-lead {
  margin: 0 0 18px;
  font-size: 14px;
  color: var(--text-dim);
}

.section-lead a {
  color: var(--accent);
}

.section-more {
  margin: 20px 0 0;
  font-size: 14px;
}

.link-more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 44px;
  font-size: 14px;
  color: var(--accent);
  text-decoration: none;
}

.link-more::after {
  content: "→";
  font-size: 13px;
}

.link-more:hover {
  text-decoration: underline;
}

/* 通用卡片底 */
.topic-card,
.entry-card,
.chart,
.update-group,
.update-note {
  background: var(--card);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
}

/* 标签通用 */
.entry-tag,
.directory-tags,
.update-tags,
.tag-link {
  font-family: var(--mono);
  font-size: 12px;
  line-height: 1.6;
}

/* --------------------------------------------------------------------------
   pages · 首页
   -------------------------------------------------------------------------- */
.home-main {
  padding-bottom: 40px;
}

/* 首屏 */
.hero {
  border-bottom: 1px solid var(--line);
  background: var(--bg-soft);
}

.hero-inner {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 44px 20px 40px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 40px;
  align-items: start;
}

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

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

.hero-title {
  font-size: 38px;
  font-weight: 700;
  line-height: 1.22;
  margin-bottom: 16px;
}

.hero-lead {
  max-width: 520px;
  font-size: 16px;
  color: var(--text-dim);
  margin-bottom: 22px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 26px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 22px;
  font-size: 15px;
  font-weight: 600;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  text-decoration: none;
}

.btn:hover {
  text-decoration: none;
}

.btn-primary {
  background: var(--accent);
  color: #1a1206;
}

.btn-primary:hover {
  background: #f2b355;
}

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

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

.hero-figure {
  margin: 0;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--card);
}

.hero-figure img {
  display: block;
  width: 100%;
  height: 240px;
  object-fit: cover;
}

.hero-caption {
  padding: 10px 14px;
  font-size: 12px;
  color: var(--text-mute);
  border-top: 1px solid var(--line-soft);
}

/* 首屏右侧频道目录 */
.hero-directory {
  min-width: 0;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px 22px 18px;
}

.hero-directory-title {
  font-size: 19px;
  margin-bottom: 6px;
}

.hero-directory-note {
  font-size: 13px;
  color: var(--text-mute);
  margin-bottom: 16px;
}

.channel-directory {
  border-top: 1px solid var(--line-soft);
}

.directory-row {
  display: grid;
  grid-template-columns: minmax(96px, 1fr) minmax(0, 1.4fr) auto;
  gap: 12px;
  align-items: center;
  padding: 11px 0;
  border-bottom: 1px solid var(--line-soft);
}

.directory-name {
  font-size: 15px;
  font-weight: 600;
}

.directory-tags {
  color: var(--text-mute);
}

.directory-state {
  font-size: 12px;
  color: var(--accent);
  white-space: nowrap;
}

.hero-directory-more {
  margin: 14px 0 0;
}

/* 更新动态 */
.update-groups {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.update-group {
  padding: 20px;
}

.update-date {
  font-size: 15px;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 12px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line-soft);
}

.update-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.update-item {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px;
  font-size: 14px;
}

.update-name {
  font-weight: 600;
  color: var(--text);
}

.update-channel {
  font-size: 12px;
  color: var(--text-mute);
}

.update-tags {
  color: var(--text-mute);
}

.update-state {
  margin-left: auto;
  font-size: 12px;
  color: var(--accent);
  white-space: nowrap;
}

/* 专题合集入口 */
.topic-cards {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 20px;
}

.topic-card {
  padding: 0 0 18px;
  overflow: hidden;
  transition: border-color 0.18s ease, transform 0.18s ease;
}

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

.topic-media {
  margin: 0;
  background: var(--card-hi);
}

.topic-media img {
  display: block;
  width: 100%;
  height: 150px;
  object-fit: cover;
}

.topic-name {
  font-size: 16px;
  margin: 16px 18px 8px;
}

.topic-reason {
  margin: 0 18px 10px;
  font-size: 13px;
  color: var(--text-dim);
}

.topic-count {
  margin: 0 18px 10px;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--text-mute);
}

.topic-card .link-more {
  margin: 0 18px;
  min-height: 36px;
}

/* 题材分类总览 */
.genre-table {
  font-size: 14px;
}

.genre-caption,
.field-caption,
.table-caption {
  caption-side: top;
  text-align: left;
  padding: 0 0 12px;
  font-size: 13px;
  color: var(--text-mute);
}

.genre-table thead th {
  text-align: left;
  padding: 10px 14px;
  font-size: 13px;
  color: var(--text-mute);
  font-weight: 600;
  border-bottom: 1px solid var(--line);
}

.genre-table tbody th {
  text-align: left;
  padding: 13px 14px;
  font-weight: 600;
  color: var(--text);
  border-bottom: 1px solid var(--line-soft);
  white-space: nowrap;
}

.genre-table tbody td {
  padding: 13px 14px;
  color: var(--text-dim);
  border-bottom: 1px solid var(--line-soft);
}

.genre-table tbody tr:hover th,
.genre-table tbody tr:hover td {
  background: var(--card);
}

/* 榜单 */
.chart-columns {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.chart {
  padding: 20px;
}

.chart-name {
  font-size: 17px;
  margin-bottom: 6px;
}

.chart-basis {
  font-size: 13px;
  color: var(--text-mute);
  margin-bottom: 14px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line-soft);
}

.chart-list {
  counter-reset: chart-rank;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.chart-row {
  display: flex;
  align-items: baseline;
  gap: 10px;
  font-size: 14px;
  counter-increment: chart-rank;
}

.chart-row::before {
  content: counter(chart-rank);
  flex: 0 0 20px;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--accent);
}

.chart-title {
  color: var(--text);
}

/* 观看指引与边界 */
.guide-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
  gap: 32px;
  align-items: start;
}

.guide-column {
  min-width: 0;
}

.field-table {
  font-size: 14px;
}

.field-table tbody th {
  text-align: left;
  padding: 11px 14px 11px 0;
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
  white-space: nowrap;
  vertical-align: top;
  border-bottom: 1px solid var(--line-soft);
}

.field-table tbody td {
  padding: 11px 0;
  color: var(--text-dim);
  border-bottom: 1px solid var(--line-soft);
}

.guide-aside {
  min-width: 0;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px;
}

.aside-title {
  font-size: 17px;
  margin-bottom: 14px;
}

.boundary-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.boundary-item {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  color: var(--text-dim);
}

.boundary-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 6px;
  height: 6px;
  background: var(--accent);
  border-radius: 50%;
}

.aside-more {
  margin: 16px 0 0;
}

/* 站内索引 */
.index-columns {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 24px;
}

.index-column {
  min-width: 0;
}

.index-name {
  font-size: 15px;
  margin-bottom: 10px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--line-soft);
}

.index-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.index-list a {
  display: inline-block;
  min-height: 30px;
  font-size: 14px;
  color: var(--text-dim);
}

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

/* --------------------------------------------------------------------------
   pages · 剧集频道
   -------------------------------------------------------------------------- */
.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  background: var(--card);
}

.data-table {
  min-width: 620px;
  font-size: 14px;
}

.data-table caption {
  padding: 14px 16px 0;
}

.data-table thead th {
  text-align: left;
  padding: 13px 16px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-mute);
  border-bottom: 1px solid var(--line);
  white-space: nowrap;
}

.data-table tbody th {
  text-align: left;
  padding: 13px 16px;
  font-weight: 600;
  color: var(--text);
  border-bottom: 1px solid var(--line-soft);
  white-space: nowrap;
}

.data-table tbody td {
  padding: 13px 16px;
  color: var(--text-dim);
  border-bottom: 1px solid var(--line-soft);
}

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

.data-table tbody tr:hover th,
.data-table tbody tr:hover td {
  background: var(--card-hi);
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

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

.tag-link {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 0 14px;
  border: 1px solid var(--line);
  border-radius: 20px;
  color: var(--text-dim);
  text-decoration: none;
}

.tag-link:hover {
  border-color: var(--accent);
  color: var(--accent);
  text-decoration: none;
}

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

.entry-card {
  display: grid;
  grid-template-columns: 160px minmax(0, 1fr);
  overflow: hidden;
  transition: border-color 0.18s ease;
}

.entry-card:hover {
  border-color: var(--accent);
}

.entry-media {
  margin: 0;
  background: var(--card-hi);
}

.entry-media img {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 150px;
  object-fit: cover;
}

.entry-body {
  min-width: 0;
  padding: 16px 18px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.entry-title {
  font-size: 16px;
  margin: 0;
}

.entry-title a {
  color: var(--text);
}

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

.entry-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
}

.entry-channel,
.entry-tag {
  display: inline-block;
  padding: 2px 9px;
  border-radius: 3px;
  background: var(--accent-soft);
  color: var(--accent);
}

.entry-tag {
  background: var(--card-hi);
  color: var(--text-mute);
}

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

.entry-status {
  margin: 0;
  font-size: 12px;
  color: var(--text-mute);
}

.scope-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
  gap: 32px;
  align-items: start;
}

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

.scope-main p {
  font-size: 15px;
  color: var(--text-dim);
}

.scope-side {
  min-width: 0;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px;
}

.scope-side-title {
  font-size: 17px;
  margin-bottom: 14px;
}

.scope-steps {
  counter-reset: scope-step;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.scope-step {
  position: relative;
  padding-left: 30px;
  font-size: 14px;
  color: var(--text-dim);
  counter-increment: scope-step;
}

.scope-step::before {
  content: counter(scope-step);
  position: absolute;
  left: 0;
  top: 2px;
  width: 20px;
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--accent-soft);
  color: var(--accent);
  font-family: var(--mono);
  font-size: 11px;
}

/* --------------------------------------------------------------------------
   pages · 专题合集
   -------------------------------------------------------------------------- */
.topic-intro,
.topic-lists,
.topic-updates,
.topic-relation,
.guide-section {
  margin-bottom: 46px;
}

.topic-intro .section-title,
.topic-lists .section-title,
.topic-updates .section-title,
.topic-relation .section-title,
.guide-section .section-title {
  font-size: 23px;
  margin-bottom: 8px;
}

.topic-card-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 20px;
}

.topic-card-media {
  margin: 0;
  background: var(--card-hi);
}

.topic-card-media img {
  display: block;
  width: 100%;
  height: 140px;
  object-fit: cover;
}

.topic-card-title {
  font-size: 16px;
  margin: 16px 18px 8px;
}

.topic-card-title a {
  color: var(--text);
}

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

.topic-card-reason {
  margin: 0 18px 10px;
  font-size: 13px;
  color: var(--text-dim);
}

.topic-card-meta {
  margin: 0 18px;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--text-mute);
}

.topic-group {
  margin-bottom: 34px;
  padding: 22px;
  background: var(--card);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
}

.topic-group-title {
  font-size: 18px;
  margin-bottom: 8px;
}

.topic-group-desc {
  font-size: 14px;
  color: var(--text-dim);
  margin-bottom: 16px;
}

.topic-group .entry-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.entry-item {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) minmax(90px, 0.8fr) minmax(80px, 0.7fr) auto;
  gap: 12px;
  align-items: center;
  padding: 11px 0;
  border-bottom: 1px solid var(--line-soft);
  font-size: 14px;
}

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

.entry-name {
  font-weight: 600;
  color: var(--text);
}

.entry-item .entry-channel {
  background: none;
  padding: 0;
  color: var(--text-mute);
  font-size: 12px;
}

.entry-item .entry-tag {
  background: none;
  padding: 0;
  color: var(--text-mute);
  font-size: 12px;
}

.entry-item .entry-status {
  text-align: right;
  color: var(--accent);
  white-space: nowrap;
}

.topic-updates .update-list {
  gap: 0;
}

.topic-updates .update-item {
  display: grid;
  grid-template-columns: 110px minmax(120px, 0.9fr) minmax(0, 2fr);
  gap: 16px;
  align-items: baseline;
  padding: 12px 0;
  border-bottom: 1px solid var(--line-soft);
}

.topic-updates .update-item:last-child {
  border-bottom: 0;
}

.update-time {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--text-mute);
}

.update-topic {
  font-weight: 600;
  color: var(--text);
}

.update-desc {
  font-size: 14px;
  color: var(--text-dim);
}

.relation-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 28px;
}

.relation-col {
  min-width: 0;
  padding: 22px;
  background: var(--card);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
}

.relation-title {
  font-size: 17px;
  margin-bottom: 10px;
}

.relation-col p {
  font-size: 14px;
  color: var(--text-dim);
  margin-bottom: 10px;
}

.relation-col p:last-child {
  margin-bottom: 0;
}

/* --------------------------------------------------------------------------
   pages · 观看指引
   -------------------------------------------------------------------------- */
.guide-figure {
  margin: 0 0 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--card);
}

.guide-figure img {
  display: block;
  width: 100%;
  height: 260px;
  object-fit: cover;
}

.guide-figure figcaption {
  padding: 10px 16px;
  font-size: 12px;
  color: var(--text-mute);
  border-top: 1px solid var(--line-soft);
}

.guide-fields .field-table {
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--card);
}

.guide-fields .field-table thead th {
  text-align: left;
  padding: 12px 16px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-mute);
  border-bottom: 1px solid var(--line);
  white-space: nowrap;
}

.guide-fields .field-table tbody td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--line-soft);
  color: var(--text-dim);
}

.guide-fields .field-table tbody td:first-child {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--accent);
  white-space: nowrap;
}

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

.step-list {
  counter-reset: guide-step;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.step-item {
  position: relative;
  min-width: 0;
  padding: 20px 20px 20px 60px;
  background: var(--card);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  counter-increment: guide-step;
}

.step-index {
  position: absolute;
  left: 20px;
  top: 20px;
  width: 26px;
  height: 26px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--accent-soft);
  color: var(--accent);
  font-family: var(--mono);
  font-size: 12px;
}

.step-index::before {
  content: counter(guide-step);
}

.step-title {
  font-size: 16px;
  margin-bottom: 6px;
}

.step-text {
  margin: 0;
  font-size: 14px;
  color: var(--text-dim);
}

.update-notes {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.update-note {
  padding: 20px;
}

.update-note-title {
  font-size: 16px;
  margin-bottom: 8px;
}

.update-note-text {
  margin: 0;
  font-size: 14px;
  color: var(--text-dim);
}

.check-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px 24px;
}

.check-item {
  position: relative;
  padding-left: 24px;
  font-size: 14px;
  color: var(--text-dim);
}

.check-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 10px;
  height: 6px;
  border-left: 2px solid var(--accent);
  border-bottom: 2px solid var(--accent);
  transform: rotate(-45deg);
}

.faq-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.faq-item {
  background: var(--card);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  padding: 0 20px;
}

.faq-question {
  display: flex;
  align-items: center;
  min-height: 52px;
  padding: 12px 0;
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  cursor: pointer;
  list-style: none;
}

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

.faq-question::after {
  content: "+";
  margin-left: auto;
  padding-left: 16px;
  font-family: var(--mono);
  color: var(--accent);
}

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

.faq-answer {
  margin: 0;
  padding: 0 0 16px;
  font-size: 14px;
  color: var(--text-dim);
}

/* --------------------------------------------------------------------------
   pages · 404
   -------------------------------------------------------------------------- */
.error-main {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 60px 20px 80px;
}

.error-block {
  max-width: 640px;
  padding: 40px 32px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.error-code {
  margin: 0 0 10px;
  font-family: var(--mono);
  font-size: 13px;
  color: var(--accent);
}

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

.error-text {
  font-size: 15px;
  color: var(--text-dim);
  margin-bottom: 22px;
}

.error-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.error-link {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  color: var(--text-dim);
  text-decoration: none;
}

.error-link:hover {
  border-color: var(--accent);
  color: var(--accent);
  text-decoration: none;
}

/* --------------------------------------------------------------------------
   layout · 页脚
   -------------------------------------------------------------------------- */
.site-footer {
  background: #0d0f16;
  border-top: 1px solid var(--line);
  margin-top: 20px;
}

.footer-inner {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 40px 20px 26px;
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) repeat(4, minmax(0, 1fr));
  gap: 28px;
}

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

.footer-name {
  margin: 0 0 8px;
  font-size: 16px;
  font-weight: 700;
  color: var(--text);
}

.footer-desc {
  margin: 0;
  font-size: 13px;
  color: var(--text-mute);
}

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

.footer-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 12px;
}

.footer-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer-list a {
  display: inline-block;
  min-height: 30px;
  font-size: 13px;
  color: var(--text-mute);
}

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

.footer-bottom {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 16px 20px 26px;
  border-top: 1px solid var(--line-soft);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.footer-copy {
  margin: 0;
  font-size: 12px;
  color: var(--text-mute);
}

.footer-top {
  margin: 0;
  font-size: 13px;
}

.footer-top a {
  color: var(--text-dim);
}

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

/* --------------------------------------------------------------------------
   responsive · 平板与手机
   -------------------------------------------------------------------------- */
@media (max-width: 1024px) {
  .hero-inner {
    grid-template-columns: minmax(0, 1fr);
    gap: 30px;
  }

  .hero-title {
    font-size: 32px;
  }

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

  .update-groups,
  .chart-columns,
  .update-notes {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

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

@media (max-width: 768px) {
  .header-inner {
    flex-wrap: wrap;
    row-gap: 8px;
  }

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

  .site-nav {
    flex: 1 0 100%;
    order: 3;
  }

  .nav-list {
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
    padding-top: 8px;
    border-top: 1px solid var(--line);
  }

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

  .nav-link {
    justify-content: flex-start;
    padding: 12px 10px;
  }

  .inner-main {
    padding: 18px 16px 44px;
  }

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

  .hero-inner {
    padding: 30px 16px 32px;
  }

  .hero-title {
    font-size: 27px;
  }

  .hero-figure img {
    height: 200px;
  }

  .section-inner {
    padding: 0 16px;
  }

  .section-title,
  .topic-intro .section-title,
  .topic-lists .section-title,
  .topic-updates .section-title,
  .topic-relation .section-title,
  .guide-section .section-title {
    font-size: 20px;
  }

  .guide-grid,
  .scope-layout,
  .relation-grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 22px;
  }

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

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

  .entry-media img {
    height: 190px;
    min-height: 0;
  }

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

  .entry-item {
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 6px 12px;
  }

  .entry-item .entry-channel,
  .entry-item .entry-tag {
    grid-column: 1;
  }

  .entry-item .entry-status {
    grid-column: 2;
    grid-row: 1;
  }

  .footer-inner {
    padding: 32px 16px 22px;
    gap: 22px;
  }

  .footer-bottom {
    padding: 14px 16px 24px;
  }

  .error-main {
    padding: 40px 16px 60px;
  }

  .error-block {
    padding: 28px 20px;
  }

  .error-title {
    font-size: 24px;
  }
}

@media (max-width: 480px) {
  .topbar-text {
    padding: 8px 14px;
    font-size: 12px;
  }

  .brand-name {
    font-size: 17px;
  }

  .brand-slogan {
    font-size: 11px;
  }

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

  .hero-lead {
    font-size: 15px;
  }

  .hero-actions {
    gap: 10px;
  }

  .btn {
    flex: 1 1 100%;
  }

  .update-groups,
  .chart-columns,
  .update-notes,
  .topic-cards,
  .topic-card-grid,
  .index-columns {
    grid-template-columns: minmax(0, 1fr);
  }

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

  .directory-tags {
    grid-column: 1;
  }

  .directory-state {
    grid-column: 2;
    grid-row: 1;
  }

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

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

  .data-table {
    min-width: 520px;
  }

  .guide-figure img {
    height: 180px;
  }

  .step-item {
    padding: 18px 16px 18px 52px;
  }

  .step-index {
    left: 16px;
    top: 18px;
  }
}