/* ==========================================================================
   樱花视频电视剧 · 全站样式
   结构：base / layout / components / pages / responsive
   ========================================================================== */

/* --------------------------------------------------------------------------
   base · 变量与基础排版
   -------------------------------------------------------------------------- */

:root {
  --c-primary: #b23a48;
  --c-primary-dark: #8f2c38;
  --c-secondary: #2f4858;
  --c-secondary-light: #3d5c70;
  --c-bg: #faf7f5;
  --c-surface: #ffffff;
  --c-border: #e3dcd8;
  --c-border-strong: #cfc5bf;
  --c-text: #2b2b2b;
  --c-text-soft: #5c5c5c;
  --c-text-mute: #7a7370;
  --shadow-s: 0 1px 2px rgba(43, 43, 43, 0.05);
  --shadow-m: 0 2px 8px rgba(43, 43, 43, 0.07);
  --radius: 6px;
  --radius-s: 4px;
  --wrap: 1180px;
  --wrap-narrow: 1080px;
}

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

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

body {
  margin: 0;
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.7;
  color: var(--c-text);
  background-color: var(--c-bg);
}

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

a {
  color: var(--c-primary);
  text-decoration: none;
  transition: color 0.18s ease, border-color 0.18s ease, background-color 0.18s ease;
}

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

h1,
h2,
h3,
h4 {
  margin: 0 0 0.5em;
  font-weight: 700;
  line-height: 1.35;
  color: var(--c-text);
}

p {
  margin: 0 0 1em;
}

ul,
ol {
  margin: 0 0 1em;
  padding: 0;
  list-style: none;
}

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

button {
  font: inherit;
  color: inherit;
}

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

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

.site-body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background-color: var(--c-bg);
}

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

.header-inner {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 20px;
  min-height: 66px;
  display: flex;
  align-items: center;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex: 0 0 auto;
  color: var(--c-text);
  text-decoration: none;
}

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

.brand-mark {
  width: 34px;
  height: 34px;
  flex: 0 0 auto;
  border-radius: var(--radius-s);
  background-color: var(--c-primary);
  position: relative;
}

.brand-mark::after {
  content: "";
  position: absolute;
  inset: 9px 11px;
  border-radius: 2px;
  background-color: #fff;
  opacity: 0.9;
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.brand-name {
  font-size: 17px;
  font-weight: 700;
  color: var(--c-secondary);
}

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

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

.nav-list {
  display: flex;
  align-items: center;
  gap: 4px;
  margin: 0;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 14px;
  font-size: 15px;
  color: var(--c-secondary);
  border-radius: var(--radius-s);
  border-bottom: 2px solid transparent;
  text-decoration: none;
}

.nav-link:hover {
  color: var(--c-primary);
  background-color: #f6eff0;
  text-decoration: none;
}

.nav-link.is-current {
  color: var(--c-primary);
  font-weight: 700;
  border-bottom-color: var(--c-primary);
}

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

.nav-toggle-bar {
  display: block;
  width: 20px;
  height: 2px;
  background-color: var(--c-secondary);
}

.site-main {
  flex: 1 0 auto;
  width: 100%;
}

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

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

.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 14px;
  color: var(--c-text-mute);
  margin-bottom: 16px;
}

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

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

.breadcrumb-current {
  color: var(--c-text);
  font-weight: 500;
}

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

.page-title {
  font-size: 26px;
  font-weight: 700;
  color: var(--c-secondary);
  margin-bottom: 10px;
}

.page-description {
  margin: 0;
  font-size: 15px;
  color: var(--c-text-soft);
  max-width: 78ch;
}

.page-layout {
  display: grid;
  gap: 32px;
}

.page-layout.sidebar-left {
  grid-template-columns: 250px minmax(0, 1fr);
}

.page-layout.sidebar-left > .page-content {
  min-width: 0;
}

.page-layout.sidebar-left > .page-aside,
.page-layout.sidebar-left > .page-sidebar {
  min-width: 0;
}

.site-footer {
  background-color: var(--c-secondary);
  color: #d7dee3;
  margin-top: auto;
}

.footer-inner {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 40px 20px 24px;
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) repeat(3, minmax(0, 1fr));
  gap: 28px;
}

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

.footer-name {
  font-size: 17px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 8px;
}

.footer-desc {
  font-size: 13px;
  line-height: 1.7;
  color: #b9c6ce;
  margin: 0;
  max-width: 34ch;
}

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

.footer-title {
  font-size: 14px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.14);
}

.footer-list {
  margin: 0;
}

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

.footer-list a {
  font-size: 13px;
  color: #c9d4db;
  text-decoration: none;
}

.footer-list a:hover {
  color: #fff;
  text-decoration: underline;
}

.footer-boundary p {
  font-size: 13px;
  line-height: 1.7;
  color: #b9c6ce;
  margin: 0;
}

.footer-copy {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 14px 20px 28px;
  font-size: 12px;
  color: #8fa1ac;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

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

.section {
  margin-bottom: 44px;
}

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

.section-title {
  font-size: 21px;
  font-weight: 700;
  color: var(--c-secondary);
  margin-bottom: 8px;
  padding-left: 12px;
  border-left: 4px solid var(--c-primary);
}

.section-desc,
.section-intro {
  margin: 0;
  font-size: 15px;
  color: var(--c-text-soft);
  max-width: 80ch;
}

.section-media {
  margin: 22px 0 0;
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  overflow: hidden;
  background-color: var(--c-surface);
}

.section-media img {
  display: block;
  width: 100%;
  height: 220px;
  object-fit: cover;
}

.section-media figcaption {
  padding: 10px 14px;
  font-size: 13px;
  color: var(--c-text-mute);
  border-top: 1px solid var(--c-border);
}

.section-figure {
  margin: 0 0 22px;
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  overflow: hidden;
  background-color: var(--c-surface);
}

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

.section-figure figcaption {
  padding: 10px 14px;
  font-size: 13px;
  color: var(--c-text-mute);
  border-top: 1px solid var(--c-border);
}

.section-foot {
  margin: 20px 0 0;
  font-size: 14px;
  color: var(--c-text-soft);
}

.section-foot a {
  margin-right: 16px;
}

/* 通用数据表 */

.data-table,
.field-table,
.field-summary {
  width: 100%;
  font-size: 14px;
  background-color: var(--c-surface);
  border: 1px solid var(--c-border);
}

.data-table caption,
.field-table caption,
.field-summary caption {
  caption-side: top;
  text-align: left;
  padding: 10px 12px;
  font-size: 13px;
  color: var(--c-text-mute);
  background-color: #f4efec;
  border-bottom: 1px solid var(--c-border);
}

.table-caption {
  font-size: 13px;
  color: var(--c-text-mute);
}

.data-table th,
.data-table td,
.field-table th,
.field-table td,
.field-summary th,
.field-summary td {
  padding: 10px 12px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--c-border);
}

.data-table thead th,
.field-table thead th,
.field-summary thead th {
  background-color: #f4efec;
  color: var(--c-secondary);
  font-weight: 700;
  white-space: nowrap;
}

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

.data-table tbody tr:hover,
.field-table tbody tr:hover,
.field-summary tbody tr:hover {
  background-color: #fbf6f4;
}

.table-wrap {
  overflow-x: auto;
  border-radius: var(--radius);
}

/* 侧栏 */

.page-aside,
.page-sidebar {
  align-self: start;
  position: sticky;
  top: 86px;
  background-color: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: 18px 16px;
  font-size: 14px;
}

.aside-title,
.sidebar-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--c-secondary);
  margin-bottom: 10px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--c-border);
}

.aside-list,
.sidebar-list {
  margin: 0 0 18px;
}

.aside-item,
.sidebar-list li {
  margin-bottom: 4px;
}

.aside-item a,
.sidebar-list a {
  display: block;
  min-height: 36px;
  padding: 6px 8px;
  font-size: 14px;
  color: var(--c-text-soft);
  border-radius: var(--radius-s);
  border-left: 3px solid transparent;
}

.aside-item a:hover,
.sidebar-list a:hover {
  color: var(--c-primary);
  background-color: #f8f1f1;
  border-left-color: var(--c-primary);
  text-decoration: none;
}

.aside-note,
.sidebar-note {
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--c-text-mute);
  padding-top: 12px;
  border-top: 1px dashed var(--c-border);
}

.aside-note a,
.sidebar-note a {
  color: var(--c-primary);
}

/* --------------------------------------------------------------------------
   pages · 首页
   -------------------------------------------------------------------------- */

/* 首屏 */

.hero-scene {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
  gap: 30px;
  padding: 34px 0 40px;
  border-bottom: 1px solid var(--c-border);
  margin-bottom: 44px;
}

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

.hero-eyebrow {
  display: inline-block;
  margin: 0 0 12px;
  padding: 4px 10px;
  font-size: 13px;
  color: var(--c-primary);
  background-color: #f7ecee;
  border-radius: var(--radius-s);
}

.hero-title {
  font-size: 30px;
  line-height: 1.35;
  color: var(--c-secondary);
  margin-bottom: 14px;
}

.hero-lead {
  font-size: 16px;
  color: var(--c-text-soft);
  max-width: 62ch;
  margin-bottom: 24px;
}

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

.scene-card {
  display: flex;
  flex-direction: column;
  min-width: 0;
  padding: 18px 16px;
  background-color: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-s);
  transition: border-color 0.18s ease, box-shadow 0.18s ease;
}

.scene-card:hover {
  border-color: var(--c-primary);
  box-shadow: var(--shadow-m);
}

.scene-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  margin-bottom: 12px;
  font-size: 15px;
  font-weight: 700;
  color: #fff;
  background-color: var(--c-primary);
  border-radius: var(--radius-s);
}

.scene-name {
  font-size: 16px;
  margin-bottom: 8px;
  color: var(--c-secondary);
}

.scene-desc {
  flex: 1 1 auto;
  font-size: 14px;
  line-height: 1.65;
  color: var(--c-text-soft);
  margin-bottom: 14px;
}

.scene-link {
  align-self: flex-start;
  font-size: 14px;
  font-weight: 700;
  color: var(--c-primary);
  border-bottom: 1px solid transparent;
}

.scene-link:hover {
  border-bottom-color: var(--c-primary);
  text-decoration: none;
}

.hero-figure {
  margin: 0;
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  overflow: hidden;
  background-color: var(--c-surface);
  align-self: start;
}

.hero-figure img {
  display: block;
  width: 100%;
  height: 300px;
  object-fit: cover;
}

.hero-figure figcaption {
  padding: 10px 14px;
  font-size: 13px;
  color: var(--c-text-mute);
  border-top: 1px solid var(--c-border);
}

/* 频道方向总览 */

.channel-overview {
  margin-bottom: 44px;
}

.channel-rows {
  margin: 0;
  border-top: 1px solid var(--c-border);
}

.channel-row {
  display: grid;
  grid-template-columns: 150px minmax(0, 1.3fr) minmax(0, 1.3fr) 96px;
  gap: 16px;
  align-items: center;
  padding: 14px 12px;
  border-bottom: 1px solid var(--c-border);
  background-color: var(--c-surface);
  transition: background-color 0.18s ease;
}

.channel-row:hover {
  background-color: #fbf4f3;
}

.channel-name {
  font-size: 15px;
  font-weight: 700;
  color: var(--c-secondary);
  margin: 0;
}

.channel-orient,
.channel-scene {
  font-size: 14px;
  color: var(--c-text-soft);
}

.channel-entry {
  justify-self: end;
  font-size: 14px;
  font-weight: 700;
  color: var(--c-primary);
  white-space: nowrap;
}

/* 本期专题片单 */

.topic-list {
  margin-bottom: 44px;
}

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

.topic-card {
  display: flex;
  flex-direction: column;
  min-width: 0;
  background-color: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color 0.18s ease, box-shadow 0.18s ease;
}

.topic-card:hover {
  border-color: var(--c-primary);
  box-shadow: var(--shadow-m);
}

.topic-cover {
  margin: 0;
  overflow: hidden;
}

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

.topic-name {
  font-size: 16px;
  margin: 16px 16px 8px;
  color: var(--c-secondary);
}

.topic-scope,
.topic-channels {
  margin: 0 16px 8px;
  font-size: 14px;
  line-height: 1.65;
  color: var(--c-text-soft);
}

.topic-channels {
  color: var(--c-text-mute);
}

.topic-entry {
  margin: 6px 16px 18px;
  align-self: flex-start;
  font-size: 14px;
  font-weight: 700;
  color: var(--c-primary);
}

/* 条目字段与收录边界摘要 */

.fields-table {
  margin-bottom: 44px;
}

.field-summary {
  border-radius: var(--radius);
  overflow: hidden;
}

.field-summary tbody th {
  width: 190px;
  font-weight: 700;
  color: var(--c-secondary);
  background-color: #faf5f3;
}

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

/* 查阅路径三步概览 */

.path-steps {
  margin-bottom: 44px;
}

.path-list {
  margin: 0;
}

.path-item {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 6px 16px;
  padding: 16px 12px;
  background-color: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  margin-bottom: 12px;
}

.path-index {
  grid-row: 1 / span 2;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  font-size: 16px;
  font-weight: 700;
  color: #fff;
  background-color: var(--c-secondary);
  border-radius: var(--radius-s);
}

.path-name {
  font-size: 16px;
  margin: 0;
  color: var(--c-secondary);
}

.path-desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.65;
  color: var(--c-text-soft);
}

/* 站内范围调整记录 */

.update-log {
  margin-bottom: 44px;
}

.log-list {
  margin: 0;
  border-top: 1px solid var(--c-border);
}

.log-item {
  display: grid;
  grid-template-columns: 120px minmax(0, 1fr);
  gap: 16px;
  padding: 12px;
  border-bottom: 1px solid var(--c-border);
  background-color: var(--c-surface);
}

.log-time {
  font-size: 13px;
  color: var(--c-text-mute);
  white-space: nowrap;
}

.log-text {
  margin: 0;
  font-size: 14px;
  line-height: 1.65;
  color: var(--c-text-soft);
}

.log-feedback {
  margin: 16px 0 0;
  font-size: 14px;
}

/* --------------------------------------------------------------------------
   pages · 频道目录
   -------------------------------------------------------------------------- */

.channel-compare {
  margin-bottom: 40px;
}

.channel-compare > .channel-row {
  display: grid;
  grid-template-columns: 240px minmax(0, 1fr);
  gap: 20px;
  align-items: start;
  padding: 18px;
  margin-bottom: 16px;
  background-color: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  transition: border-color 0.18s ease, box-shadow 0.18s ease;
}

.channel-compare > .channel-row:hover {
  border-color: var(--c-primary);
  box-shadow: var(--shadow-m);
}

.channel-compare .channel-media {
  margin: 0;
  overflow: hidden;
  border-radius: var(--radius-s);
}

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

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

.channel-compare .channel-name {
  font-size: 18px;
  margin-bottom: 10px;
}

.channel-meta {
  margin: 0 0 14px;
  display: grid;
  grid-template-columns: 80px minmax(0, 1fr);
  gap: 6px 12px;
  font-size: 14px;
}

.channel-meta dt {
  color: var(--c-text-mute);
}

.channel-meta dd {
  margin: 0;
  color: var(--c-text-soft);
}

.channel-link {
  font-size: 14px;
  font-weight: 700;
  color: var(--c-primary);
}

.channel-entries {
  margin-bottom: 40px;
}

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

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

.entry-name {
  font-size: 15px;
  margin-bottom: 8px;
  color: var(--c-secondary);
}

.entry-desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.65;
  color: var(--c-text-soft);
}

/* --------------------------------------------------------------------------
   pages · 专题片单
   -------------------------------------------------------------------------- */

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

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

.topic-grid .topic-media {
  margin: 0;
  overflow: hidden;
}

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

.topic-desc {
  margin: 0 16px 8px;
  font-size: 14px;
  line-height: 1.65;
  color: var(--c-text-soft);
}

.topic-meta {
  margin: 0 16px 18px;
  font-size: 13px;
  color: var(--c-text-mute);
}

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

.scope-list {
  border-top: 1px solid var(--c-border);
}

.scope-row {
  padding: 16px 12px;
  border-bottom: 1px solid var(--c-border);
  background-color: var(--c-surface);
}

.scope-head {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 8px;
}

.scope-name {
  font-size: 16px;
  font-weight: 700;
  color: var(--c-secondary);
}

.scope-tag {
  display: inline-block;
  padding: 2px 8px;
  font-size: 12px;
  color: var(--c-primary);
  background-color: #f7ecee;
  border-radius: var(--radius-s);
}

.scope-label {
  font-size: 13px;
  color: var(--c-text-mute);
}

.scope-range,
.scope-order {
  margin: 0 0 6px;
  font-size: 14px;
  line-height: 1.65;
  color: var(--c-text-soft);
}

.scope-order {
  margin-bottom: 0;
}

.scope-foot {
  margin: 16px 0 0;
  font-size: 14px;
}

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

/* --------------------------------------------------------------------------
   pages · 条目字段说明
   -------------------------------------------------------------------------- */

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

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

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

.rule-name {
  font-size: 15px;
  margin-bottom: 8px;
  color: var(--c-secondary);
}

.rule-item p {
  margin: 0;
  font-size: 14px;
  line-height: 1.65;
  color: var(--c-text-soft);
}

.boundary-list {
  margin: 0;
  counter-reset: boundary;
}

.boundary-item {
  position: relative;
  padding: 14px 16px 14px 52px;
  margin-bottom: 12px;
  background-color: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
}

.boundary-item::before {
  counter-increment: boundary;
  content: counter(boundary);
  position: absolute;
  left: 16px;
  top: 14px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  font-size: 13px;
  font-weight: 700;
  color: #fff;
  background-color: var(--c-secondary);
  border-radius: var(--radius-s);
}

.boundary-name {
  font-size: 15px;
  margin-bottom: 6px;
  color: var(--c-secondary);
}

.boundary-item p {
  margin: 0;
  font-size: 14px;
  line-height: 1.65;
  color: var(--c-text-soft);
}

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

.path-cell {
  padding: 16px;
  background-color: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
}

.path-cell-title {
  font-size: 15px;
  margin-bottom: 8px;
  color: var(--c-secondary);
}

.path-cell p {
  margin: 0;
  font-size: 14px;
  line-height: 1.65;
  color: var(--c-text-soft);
}

/* --------------------------------------------------------------------------
   pages · 观看说明
   -------------------------------------------------------------------------- */

.section-steps,
.section-path-map,
.section-faq,
.section-feedback {
  margin-bottom: 40px;
}

.step-list {
  margin: 0;
}

.step-item {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 16px;
  padding: 16px;
  margin-bottom: 12px;
  background-color: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
}

.step-no {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  font-size: 16px;
  font-weight: 700;
  color: #fff;
  background-color: var(--c-primary);
  border-radius: var(--radius-s);
}

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

.step-title {
  font-size: 16px;
  margin-bottom: 6px;
  color: var(--c-secondary);
}

.step-body p {
  margin: 0;
  font-size: 14px;
  line-height: 1.65;
  color: var(--c-text-soft);
}

.step-note {
  margin: 16px 0 0;
  font-size: 14px;
}

.path-figure {
  margin: 0 0 22px;
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  overflow: hidden;
  background-color: var(--c-surface);
}

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

.path-figure figcaption {
  padding: 10px 14px;
  font-size: 13px;
  color: var(--c-text-mute);
  border-top: 1px solid var(--c-border);
}

.path-layer-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.path-layer {
  padding: 16px;
  background-color: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
}

.path-layer-title {
  font-size: 15px;
  margin-bottom: 8px;
  color: var(--c-secondary);
}

.path-layer p {
  margin: 0 0 8px;
  font-size: 14px;
  line-height: 1.65;
  color: var(--c-text-soft);
}

.path-layer-link {
  margin: 0;
  font-size: 14px;
}

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

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

.faq-question {
  display: flex;
  align-items: center;
  min-height: 48px;
  padding: 12px 16px 12px 34px;
  font-size: 15px;
  font-weight: 700;
  color: var(--c-secondary);
  cursor: pointer;
  position: relative;
  list-style: none;
}

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

.faq-question::before {
  content: "+";
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 18px;
  font-weight: 700;
  color: var(--c-primary);
}

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

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

.faq-answer {
  margin: 0;
  padding: 0 16px 16px 34px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--c-text-soft);
}

.feedback-list {
  margin: 0 0 16px;
  counter-reset: feedback;
}

.feedback-item {
  position: relative;
  padding: 14px 16px 14px 52px;
  margin-bottom: 12px;
  background-color: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
}

.feedback-item::before {
  counter-increment: feedback;
  content: counter(feedback);
  position: absolute;
  left: 16px;
  top: 14px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  font-size: 13px;
  font-weight: 700;
  color: #fff;
  background-color: var(--c-secondary);
  border-radius: var(--radius-s);
}

.feedback-title {
  font-size: 15px;
  margin-bottom: 6px;
  color: var(--c-secondary);
}

.feedback-item p {
  margin: 0;
  font-size: 14px;
  line-height: 1.65;
  color: var(--c-text-soft);
}

.feedback-note {
  margin: 0;
  font-size: 14px;
  color: var(--c-text-mute);
}

/* --------------------------------------------------------------------------
   pages · 404
   -------------------------------------------------------------------------- */

.error-main {
  max-width: var(--wrap-narrow);
  margin: 0 auto;
  padding: 48px 20px 64px;
}

.error-hero {
  padding-bottom: 32px;
  margin-bottom: 32px;
  border-bottom: 1px solid var(--c-border);
}

.error-code {
  margin: 0 0 10px;
  font-size: 15px;
  font-weight: 700;
  color: var(--c-primary);
}

.error-hero h1 {
  font-size: 28px;
  color: var(--c-secondary);
  margin-bottom: 12px;
}

.error-lead {
  font-size: 16px;
  color: var(--c-text-soft);
  max-width: 64ch;
  margin-bottom: 22px;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 20px;
  font-size: 15px;
  font-weight: 700;
  border-radius: var(--radius-s);
  border: 1px solid transparent;
  text-decoration: none;
}

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

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

.btn-primary:hover {
  color: #fff;
  background-color: var(--c-primary-dark);
  border-color: var(--c-primary-dark);
}

.btn-ghost {
  color: var(--c-secondary);
  background-color: var(--c-surface);
  border-color: var(--c-border-strong);
}

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

.error-section {
  margin-bottom: 32px;
}

.error-section h2 {
  font-size: 19px;
  color: var(--c-secondary);
  margin-bottom: 14px;
  padding-left: 12px;
  border-left: 4px solid var(--c-primary);
}

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

.error-list li {
  padding: 14px 16px;
  background-color: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
}

.error-list a {
  font-size: 15px;
  font-weight: 700;
  color: var(--c-secondary);
}

.error-list a:hover {
  color: var(--c-primary);
}

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

@media (max-width: 1024px) {
  .hero-scene {
    grid-template-columns: minmax(0, 1fr);
    gap: 24px;
  }

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

  .channel-row {
    grid-template-columns: 130px minmax(0, 1fr) minmax(0, 1fr) 84px;
    gap: 12px;
  }

  .page-layout.sidebar-left {
    grid-template-columns: 220px minmax(0, 1fr);
    gap: 24px;
  }

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

  .footer-inner {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 24px;
  }
}

@media (max-width: 768px) {
  .header-inner {
    min-height: 60px;
    gap: 12px;
    flex-wrap: wrap;
  }

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

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

  .nav-list {
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 8px 0 12px;
    border-top: 1px solid var(--c-border);
  }

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

  .nav-link {
    min-height: 48px;
    padding: 0 8px;
    border-bottom: 1px solid var(--c-border);
    border-left: 3px solid transparent;
    border-radius: 0;
  }

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

  .hero-scene {
    padding: 24px 0 30px;
    margin-bottom: 32px;
  }

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

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

  .section-title {
    font-size: 19px;
  }

  .channel-rows {
    border-top: 0;
  }

  .channel-row {
    grid-template-columns: minmax(0, 1fr);
    gap: 6px;
    padding: 14px 12px;
    margin-bottom: 12px;
    border: 1px solid var(--c-border);
    border-radius: var(--radius);
  }

  .channel-entry {
    justify-self: start;
    margin-top: 6px;
  }

  .topic-cards,
  .topic-grid,
  .entry-list,
  .rule-list,
  .path-grid,
  .path-layer-list,
  .error-list {
    grid-template-columns: minmax(0, 1fr);
  }

  .field-summary tbody th {
    width: auto;
  }

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

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

  .page-aside,
  .page-sidebar {
    position: static;
    top: auto;
  }

  .channel-compare > .channel-row {
    grid-template-columns: minmax(0, 1fr);
    padding: 14px;
  }

  .channel-compare .channel-media img {
    height: 180px;
  }

  .channel-meta {
    grid-template-columns: 72px minmax(0, 1fr);
  }

  .footer-inner {
    grid-template-columns: minmax(0, 1fr);
    gap: 22px;
    padding: 32px 20px 20px;
  }

  .footer-desc {
    max-width: none;
  }

  .section-media img,
  .section-figure img,
  .path-figure img {
    height: 200px;
  }
}

@media (max-width: 480px) {
  body {
    font-size: 15px;
  }

  .header-inner,
  .home-main,
  .inner-main,
  .error-main,
  .footer-inner,
  .footer-copy {
    padding-left: 14px;
    padding-right: 14px;
  }

  .brand-name {
    font-size: 16px;
  }

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

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

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

  .error-hero h1 {
    font-size: 22px;
  }

  .path-item,
  .step-item {
    grid-template-columns: minmax(0, 1fr);
    gap: 10px;
  }

  .path-index,
  .step-no {
    width: 34px;
    height: 34px;
    font-size: 14px;
  }

  .faq-question {
    font-size: 14px;
    padding-right: 12px;
  }

  .faq-answer {
    padding-right: 12px;
  }

  .section-media img,
  .section-figure img,
  .path-figure img,
  .hero-figure img {
    height: 180px;
  }
}