/* ==========================================================================
   飘花电影院 · 全站样式表
   分组：base / layout / components / pages / responsive
   ========================================================================== */

/* --------------------------------------------------------------------------
   base
   -------------------------------------------------------------------------- */

:root {
  --color-primary: #2F5D3A;
  --color-primary-dark: #24492E;
  --color-soft: #E8F0E4;
  --color-accent: #D9A521;
  --color-text: #1F241F;
  --color-muted: #5C6B58;
  --color-line: #D8E0D4;
  --color-bg: #FBFCF9;
  --color-surface: #FFFFFF;
  --radius: 4px;
  --container: 1120px;
  --shadow-soft: 0 1px 2px rgba(31, 36, 31, 0.06);
}

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

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

body {
  margin: 0;
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  font-size: 15px;
  font-weight: 400;
  line-height: 1.75;
}

h1,
h2,
h3,
h4 {
  margin: 0;
  font-weight: 600;
  line-height: 1.4;
  color: var(--color-text);
}

p {
  margin: 0;
}

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

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

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

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

figure {
  margin: 0;
}

time,
.step-index,
.advice-num,
.scope-date {
  font-variant-numeric: tabular-nums;
}

button {
  font: inherit;
  color: inherit;
}

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

/* --------------------------------------------------------------------------
   layout · 骨架容器
   -------------------------------------------------------------------------- */

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

.site-main {
  display: block;
}

.inner-main {
  padding-bottom: 8px;
}

.home-main {
  padding-bottom: 8px;
}

/* 内页统一页头区 */
.page-header {
  max-width: var(--container);
  margin: 0 auto;
  padding: 28px 24px 8px;
}

.page-title {
  font-size: 32px;
  font-weight: 600;
  color: var(--color-primary-dark);
}

.page-description {
  max-width: 780px;
  margin-top: 10px;
  color: var(--color-muted);
  font-size: 14px;
}

/* 面包屑 */
.breadcrumb {
  max-width: var(--container);
  margin: 0 auto;
  padding: 18px 24px 0;
  font-size: 13px;
  color: var(--color-muted);
}

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

.breadcrumb-sep {
  margin: 0 8px;
  color: var(--color-line);
}

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

/* 内页区块通用间距 */
.site-inner .section,
.site-inner .content-section,
.site-inner .channel-table-section,
.site-inner .channel-order-section,
.site-inner .channel-boundary-section,
.site-inner .channel-related-section,
.site-inner .scope-timeline,
.site-inner .scope-affected,
.site-inner .scope-advice {
  padding: 30px 0 6px;
}

.section {
  padding: 44px 0;
}

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

.section-title {
  font-size: 22px;
  color: var(--color-primary-dark);
}

.section-title-sm {
  font-size: 18px;
  color: var(--color-primary-dark);
}

.subsection-title {
  font-size: 17px;
  color: var(--color-primary-dark);
}

.section-lead,
.section-intro,
.section-desc {
  margin-top: 8px;
  max-width: 760px;
  color: var(--color-muted);
  font-size: 14px;
}

.section-desc {
  max-width: 780px;
}

/* 两栏页面布局：主内容在前，aside 在后 */
.page-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: 40px;
  align-items: start;
}

.layout-main,
.guide-main {
  min-width: 0;
}

.layout-aside,
.guide-aside {
  min-width: 0;
}

/* --------------------------------------------------------------------------
   components · 顶部信息条 / 页头 / 导航
   -------------------------------------------------------------------------- */

.top-bar {
  background-color: var(--color-soft);
  border-bottom: 1px solid var(--color-line);
}

.top-bar-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 8px 16px;
  min-height: 40px;
  padding-top: 6px;
  padding-bottom: 6px;
}

.top-bar-text {
  font-size: 13px;
  color: var(--color-muted);
}

.top-bar-link {
  font-size: 13px;
  color: var(--color-primary);
  white-space: nowrap;
}

.site-header {
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-line);
  box-shadow: var(--shadow-soft);
}

.header-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 24px;
  min-height: 64px;
  padding-top: 10px;
  padding-bottom: 10px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--color-primary-dark);
  font-weight: 600;
}

.brand:hover,
.brand:focus-visible {
  text-decoration: none;
}

.brand-mark {
  display: inline-block;
  width: 30px;
  height: 30px;
  border-radius: var(--radius);
  background-color: var(--color-primary);
  border-bottom: 4px solid var(--color-accent);
}

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

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

.nav-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 4px 6px;
}

.nav-list li {
  display: block;
}

.nav-list a {
  display: block;
  padding: 8px 12px;
  border-radius: var(--radius);
  color: var(--color-text);
  font-size: 14px;
  line-height: 1.4;
  border: 1px solid transparent;
  transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.nav-list a:hover,
.nav-list a:focus-visible {
  background-color: var(--color-soft);
  border-color: var(--color-line);
  color: var(--color-primary-dark);
  text-decoration: none;
}

.nav-list a.is-current {
  background-color: var(--color-soft);
  border-color: var(--color-primary);
  color: var(--color-primary-dark);
  font-weight: 600;
}

/* 汉堡按钮：桌面隐藏 */
.nav-toggle {
  display: none;
  margin-left: auto;
  width: 44px;
  height: 44px;
  padding: 0;
  background-color: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  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(--color-primary-dark);
  border-radius: 2px;
}

/* --------------------------------------------------------------------------
   components · 按钮 / 链接 / 列表通用
   -------------------------------------------------------------------------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 10px 20px;
  border-radius: var(--radius);
  border: 1px solid transparent;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.4;
  transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.btn:hover,
.btn:focus-visible {
  text-decoration: none;
}

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

.btn-primary:hover,
.btn-primary:focus-visible {
  background-color: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
  color: #FFFFFF;
}

.btn-ghost {
  background-color: var(--color-surface);
  border-color: var(--color-line);
  color: var(--color-primary-dark);
}

.btn-ghost:hover,
.btn-ghost:focus-visible {
  border-color: var(--color-primary);
  background-color: var(--color-soft);
  color: var(--color-primary-dark);
}

.inline-link {
  display: inline-block;
  margin-top: 12px;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-primary);
  border-bottom: 1px solid var(--color-accent);
  padding-bottom: 2px;
}

.inline-link:hover,
.inline-link:focus-visible {
  color: var(--color-primary-dark);
  text-decoration: none;
}

/* 分步清单（首页 / 频道 / 片单 / 指引共用，作用域按父级限定） */
.step-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 18px;
}

.step-list .step-item {
  padding: 16px 18px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
}

.step-list .step-index {
  display: inline-block;
  margin-bottom: 8px;
  color: var(--color-accent);
  font-size: 14px;
  font-weight: 600;
}

.step-list .step-name {
  font-size: 16px;
  color: var(--color-primary-dark);
}

.step-list .step-desc {
  margin-top: 6px;
  color: var(--color-muted);
  font-size: 14px;
}

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

.step-list .step-body p {
  margin-top: 6px;
  color: var(--color-muted);
  font-size: 14px;
}

/* --------------------------------------------------------------------------
   components · 页脚
   -------------------------------------------------------------------------- */

.site-footer {
  margin-top: 56px;
  background-color: var(--color-soft);
  border-top: 1px solid var(--color-line);
  color: var(--color-text);
}

.footer-inner {
  display: grid;
  grid-template-columns: minmax(220px, 1fr) minmax(0, 2.4fr);
  gap: 32px;
  padding-top: 36px;
  padding-bottom: 28px;
}

.footer-brand-name {
  font-size: 17px;
  font-weight: 600;
  color: var(--color-primary-dark);
}

.footer-brand-desc {
  margin-top: 8px;
  max-width: 320px;
  font-size: 13px;
  color: var(--color-muted);
}

.footer-groups {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 22px 24px;
}

.footer-group-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-primary-dark);
}

.footer-links {
  margin-top: 10px;
}

.footer-links li + li {
  margin-top: 6px;
}

.footer-links a {
  font-size: 13px;
  color: var(--color-muted);
}

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

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

.footer-bottom-inner {
  padding-top: 14px;
  padding-bottom: 14px;
}

.footer-copy {
  font-size: 13px;
  color: var(--color-muted);
}

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

/* 首屏：左定位右时间线 */
.hero-section {
  padding: 40px 0 8px;
  border-bottom: 1px solid var(--color-line);
}

.hero-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
  gap: 40px;
  align-items: start;
}

.hero-eyebrow {
  display: inline-block;
  padding: 3px 10px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  background-color: var(--color-soft);
  color: var(--color-primary-dark);
  font-size: 13px;
}

.hero-title {
  margin-top: 14px;
  font-size: 32px;
  color: var(--color-primary-dark);
}

.hero-lead {
  margin-top: 12px;
  max-width: 620px;
  font-size: 15px;
  color: var(--color-muted);
}

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

.hero-figure {
  margin-top: 24px;
}

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

/* 右侧时间线 */
.hero-timeline {
  padding: 20px 22px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-line);
  border-left: 3px solid var(--color-accent);
  border-radius: var(--radius);
}

.timeline-list {
  margin-top: 14px;
}

.timeline-item {
  position: relative;
  padding: 0 0 18px 18px;
  border-left: 1px solid var(--color-line);
}

.timeline-item:last-child {
  padding-bottom: 0;
  border-left-color: transparent;
}

.timeline-item::before {
  content: "";
  position: absolute;
  left: -5px;
  top: 6px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background-color: var(--color-primary);
}

.timeline-item:last-child::before {
  left: -1px;
  background-color: var(--color-accent);
}

.timeline-date {
  display: block;
  font-size: 13px;
  color: var(--color-muted);
}

.timeline-title {
  margin-top: 4px;
  font-size: 16px;
  color: var(--color-primary-dark);
}

.timeline-desc {
  margin-top: 4px;
  font-size: 14px;
  color: var(--color-muted);
}

.timeline-link {
  display: inline-block;
  margin-top: 6px;
  font-size: 13px;
  font-weight: 600;
}

/* 题材频道方向总览：逐行四段 */
.channel-rows {
  border-top: 1px solid var(--color-line);
}

.channel-rows .channel-row {
  display: grid;
  grid-template-columns: 150px minmax(0, 1.2fr) minmax(0, 1.4fr) 110px;
  gap: 16px;
  align-items: baseline;
  padding: 16px 4px;
  border-bottom: 1px solid var(--color-line);
  transition: transform 0.2s ease, border-color 0.2s ease, background-color 0.2s ease;
}

.channel-rows .channel-row:hover {
  transform: translateY(-2px);
  border-color: var(--color-primary);
  background-color: var(--color-surface);
}

.channel-rows .channel-name {
  font-size: 16px;
  color: var(--color-primary-dark);
}

.channel-rows .channel-focus,
.channel-rows .channel-range {
  font-size: 14px;
  color: var(--color-muted);
}

.channel-rows .channel-link {
  justify-self: start;
  font-size: 14px;
  font-weight: 600;
  white-space: nowrap;
}

/* 专题片单速览：三列卡片 */
.collection-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}

.collection-card {
  display: flex;
  flex-direction: column;
  background-color: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.collection-card:hover {
  transform: translateY(-3px);
  border-color: var(--color-primary);
}

.collection-card .collection-figure {
  border-bottom: 1px solid var(--color-line);
}

.collection-card .collection-figure img {
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  background-color: var(--color-soft);
}

.collection-card .collection-name {
  margin: 16px 18px 0;
  font-size: 17px;
  color: var(--color-primary-dark);
}

.collection-card .collection-range {
  margin: 8px 18px 0;
  font-size: 14px;
  color: var(--color-muted);
}

.collection-card .collection-link {
  margin: 14px 18px 18px;
  font-size: 14px;
  font-weight: 600;
}

/* 条目字段与收录边界摘要：左表右说明 */
.fields-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
  gap: 40px;
  align-items: start;
}

.fields-table-wrap {
  min-width: 0;
}

.fields-table {
  width: 100%;
  margin-top: 16px;
  border-collapse: collapse;
  font-size: 14px;
}

.fields-table th,
.fields-table td {
  padding: 10px 12px;
  text-align: left;
  border-bottom: 1px solid var(--color-line);
  vertical-align: top;
}

.fields-table thead th {
  background-color: var(--color-soft);
  color: var(--color-primary-dark);
  font-weight: 600;
}

.fields-table tbody th {
  width: 34%;
  color: var(--color-text);
  font-weight: 600;
}

.fields-table td {
  color: var(--color-muted);
}

.fields-boundary {
  min-width: 0;
  padding: 20px 22px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-line);
  border-top: 3px solid var(--color-primary);
  border-radius: var(--radius);
}

.fields-boundary p {
  margin-top: 10px;
  font-size: 14px;
  color: var(--color-muted);
}

.fields-boundary p:first-of-type {
  margin-top: 14px;
}

/* 查阅路径三步概览 */
.guide-preview .step-list {
  margin-top: 20px;
}

.guide-more {
  margin-top: 18px;
}

/* 站内页面索引：四列 */
.index-columns {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
  margin-top: 20px;
}

.index-column {
  padding: 18px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.index-column:hover {
  transform: translateY(-2px);
  border-color: var(--color-primary);
}

.index-heading {
  font-size: 16px;
  color: var(--color-primary-dark);
}

.index-desc {
  margin-top: 8px;
  font-size: 14px;
  color: var(--color-muted);
}

.index-link {
  display: inline-block;
  margin-top: 12px;
  font-size: 14px;
  font-weight: 600;
}

/* --------------------------------------------------------------------------
   pages · 题材频道（channels）
   -------------------------------------------------------------------------- */

.channel-table-section .channel-rows {
  margin-top: 18px;
}

.channel-rows .channel-row-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 16px;
}

.channel-rows .channel-entry {
  font-size: 14px;
  font-weight: 600;
  white-space: nowrap;
}

.channel-rows .channel-row-meta {
  margin: 0;
}

.channel-rows .channel-meta-item {
  margin-top: 4px;
}

.channel-rows .channel-meta-item dt {
  display: inline-block;
  min-width: 72px;
  font-size: 13px;
  color: var(--color-primary-dark);
  font-weight: 600;
}

.channel-rows .channel-meta-item dd {
  display: inline;
  margin: 0;
  font-size: 14px;
  color: var(--color-muted);
}

/* 频道页逐行对照：两段式行布局覆盖首页四列 */
.page-channels .channel-rows .channel-row {
  grid-template-columns: minmax(0, 1fr);
  gap: 8px;
  padding: 18px 4px;
}

.channel-order-section .step-list {
  margin-top: 18px;
}

.boundary-columns {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 28px;
  margin-top: 18px;
}

.boundary-column {
  min-width: 0;
  padding: 18px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
}

.boundary-column h3 {
  font-size: 17px;
  color: var(--color-primary-dark);
}

.boundary-figure {
  margin-top: 14px;
}

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

.boundary-figure figcaption {
  margin-top: 8px;
  font-size: 13px;
  color: var(--color-muted);
}

.boundary-column > p {
  margin-top: 12px;
  font-size: 14px;
  color: var(--color-muted);
}

.related-links {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 18px;
  margin-top: 18px;
}

.related-item {
  padding: 16px 18px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.related-item:hover {
  transform: translateY(-2px);
  border-color: var(--color-primary);
}

.related-item a {
  font-size: 15px;
  font-weight: 600;
}

.related-item p {
  margin-top: 6px;
  font-size: 14px;
  color: var(--color-muted);
}

/* --------------------------------------------------------------------------
   pages · 专题片单（collections）
   -------------------------------------------------------------------------- */

.collection-list {
  display: grid;
  gap: 24px;
  margin-top: 20px;
}

.collection-block {
  display: grid;
  grid-template-columns: 300px minmax(0, 1fr);
  gap: 24px;
  align-items: start;
  padding: 18px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.collection-block:hover {
  transform: translateY(-2px);
  border-color: var(--color-primary);
}

.collection-block .collection-figure {
  min-width: 0;
}

.collection-block .collection-figure img {
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  border-radius: var(--radius);
  background-color: var(--color-soft);
}

.collection-caption {
  margin-top: 8px;
  font-size: 13px;
  color: var(--color-muted);
}

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

.collection-body .collection-name {
  font-size: 18px;
  color: var(--color-primary-dark);
}

.collection-body .collection-scope {
  margin-top: 8px;
  font-size: 14px;
  color: var(--color-text);
}

.collection-body .collection-desc {
  margin-top: 8px;
  font-size: 14px;
  color: var(--color-muted);
}

.collection-entry {
  display: inline-block;
  margin-top: 14px;
  font-size: 14px;
  font-weight: 600;
}

.section-collection-method .step-list {
  margin-top: 18px;
}

.cross-columns {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
  margin-top: 18px;
}

.cross-column {
  min-width: 0;
  padding: 18px 20px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-line);
  border-left: 3px solid var(--color-primary);
  border-radius: var(--radius);
}

.cross-title {
  font-size: 17px;
  color: var(--color-primary-dark);
}

.cross-text {
  margin-top: 10px;
  font-size: 14px;
  color: var(--color-muted);
}

.onward-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 18px;
  margin-top: 18px;
}

.onward-item {
  padding: 16px 18px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.onward-item:hover {
  transform: translateY(-2px);
  border-color: var(--color-primary);
}

.onward-link {
  font-size: 15px;
  font-weight: 600;
}

.onward-desc {
  margin-top: 6px;
  font-size: 14px;
  color: var(--color-muted);
}

/* --------------------------------------------------------------------------
   pages · 条目字段说明（fields）
   -------------------------------------------------------------------------- */

.media-figure {
  margin-top: 18px;
}

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

.media-caption {
  margin-top: 8px;
  font-size: 13px;
  color: var(--color-muted);
}

.field-table {
  margin-top: 18px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  overflow: hidden;
  background-color: var(--color-surface);
}

.field-row {
  display: grid;
  grid-template-columns: minmax(130px, 0.7fr) minmax(0, 1.6fr);
  gap: 12px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--color-line);
}

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

.field-row-head {
  background-color: var(--color-soft);
  font-weight: 600;
  color: var(--color-primary-dark);
}

.field-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text);
}

.field-meaning {
  font-size: 14px;
  color: var(--color-muted);
}

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

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

.qa-question {
  padding: 14px 0;
  font-size: 15px;
  font-weight: 600;
  color: var(--color-primary-dark);
  cursor: pointer;
}

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

.qa-answer {
  padding: 0 0 16px;
  font-size: 14px;
  color: var(--color-muted);
}

/* 侧栏 */
.aside-block {
  padding: 20px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
}

.aside-block + .aside-block {
  margin-top: 20px;
}

.aside-title {
  font-size: 17px;
  color: var(--color-primary-dark);
}

.aside-text {
  margin-top: 10px;
  font-size: 14px;
  color: var(--color-muted);
}

.aside-links {
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px solid var(--color-line);
}

.aside-links li + li {
  margin-top: 8px;
}

.aside-links a {
  font-size: 14px;
  font-weight: 600;
}

/* --------------------------------------------------------------------------
   pages · 查阅路径指引（guide）
   -------------------------------------------------------------------------- */

.guide-layout {
  grid-template-columns: minmax(0, 1fr) 300px;
}

.guide-main {
  max-width: 720px;
}

.goal-block,
.prepare-block {
  margin-top: 18px;
  padding: 18px 20px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
}

.goal-block p,
.prepare-block p {
  margin-top: 10px;
  font-size: 14px;
  color: var(--color-muted);
}

.section-media {
  margin-top: 16px;
}

.section-media img {
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  background-color: var(--color-soft);
}

.content-section .step-list {
  margin-top: 18px;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

.content-section .step-list .step-item {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  padding: 16px 18px;
}

.content-section .step-list .step-index {
  margin-bottom: 0;
  font-size: 16px;
}

.content-section .step-list .step-name {
  font-size: 16px;
}

.checklist-block,
.faq-block {
  margin-top: 20px;
}

.check-list {
  margin-top: 12px;
}

.check-list li {
  position: relative;
  padding-left: 22px;
  font-size: 14px;
  color: var(--color-muted);
}

.check-list li + li {
  margin-top: 8px;
}

.check-list li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 9px;
  width: 8px;
  height: 8px;
  border-radius: 2px;
  background-color: var(--color-accent);
}

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

.faq-item:first-of-type {
  border-top: 1px solid var(--color-line);
}

.faq-question {
  padding: 14px 0;
  font-size: 15px;
  font-weight: 600;
  color: var(--color-primary-dark);
  cursor: pointer;
}

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

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

/* --------------------------------------------------------------------------
   pages · 收录范围调整记录（scope）
   -------------------------------------------------------------------------- */

.scope-list {
  margin-top: 18px;
  border-left: 1px solid var(--color-line);
  padding-left: 20px;
}

.scope-item {
  position: relative;
  padding-bottom: 22px;
}

.scope-item:last-child {
  padding-bottom: 0;
}

.scope-item::before {
  content: "";
  position: absolute;
  left: -25px;
  top: 8px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background-color: var(--color-primary);
}

.scope-date {
  font-size: 13px;
  color: var(--color-muted);
}

.scope-heading {
  margin-top: 4px;
  font-size: 17px;
  color: var(--color-primary-dark);
}

.scope-text {
  margin-top: 6px;
  max-width: 780px;
  font-size: 14px;
  color: var(--color-muted);
}

.affected-columns {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
  margin-top: 18px;
}

.affected-column {
  min-width: 0;
  padding: 18px 20px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
}

.affected-heading {
  font-size: 16px;
  color: var(--color-primary-dark);
}

.affected-list {
  margin-top: 12px;
}

.affected-item {
  padding: 8px 0;
  border-bottom: 1px dashed var(--color-line);
  font-size: 14px;
  color: var(--color-muted);
}

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

.scope-figure {
  margin-top: 18px;
}

.scope-figure img {
  width: 100%;
  height: auto;
  max-height: 340px;
  aspect-ratio: 21 / 9;
  object-fit: cover;
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  background-color: var(--color-soft);
}

.scope-figure-caption {
  margin-top: 8px;
  font-size: 13px;
  color: var(--color-muted);
}

.advice-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 18px;
  margin-top: 20px;
}

.advice-item {
  padding: 16px 18px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
}

.advice-num {
  display: inline-block;
  margin-bottom: 8px;
  color: var(--color-accent);
  font-size: 14px;
  font-weight: 600;
}

.advice-heading {
  font-size: 16px;
  color: var(--color-primary-dark);
}

.advice-text {
  margin-top: 6px;
  font-size: 14px;
  color: var(--color-muted);
}

.scope-more {
  margin-top: 18px;
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.scope-more a {
  font-size: 14px;
  font-weight: 600;
}

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

.error-main {
  padding: 56px 0 24px;
}

.error-inner {
  max-width: 720px;
}

.error-code {
  font-size: 44px;
  font-weight: 600;
  color: var(--color-accent);
  line-height: 1;
}

.error-main h1 {
  margin-top: 12px;
  font-size: 32px;
  color: var(--color-primary-dark);
}

.error-desc {
  margin-top: 12px;
  font-size: 15px;
  color: var(--color-muted);
}

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

.error-note {
  margin-top: 20px;
  font-size: 14px;
  color: var(--color-muted);
}

.error-note a + a {
  margin-left: 14px;
}

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

@media (max-width: 900px) {
  .page-layout,
  .guide-layout {
    grid-template-columns: minmax(0, 1fr);
    gap: 28px;
  }

  .guide-main {
    max-width: none;
  }

  .hero-layout {
    grid-template-columns: minmax(0, 1fr);
    gap: 28px;
  }

  .fields-layout {
    grid-template-columns: minmax(0, 1fr);
    gap: 28px;
  }

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

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

@media (max-width: 720px) {
  .nav-toggle {
    display: flex;
  }

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

  .nav-list {
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
    margin-top: 6px;
    padding: 8px;
    background-color: var(--color-surface);
    border: 1px solid var(--color-line);
    border-radius: var(--radius);
  }

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

  .nav-list a {
    padding: 12px 14px;
    min-height: 44px;
    display: flex;
    align-items: center;
  }

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

  .channel-rows .channel-link,
  .channel-rows .channel-entry {
    justify-self: start;
  }

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

  .page-title,
  .hero-title,
  .error-main h1 {
    font-size: 24px;
  }

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

  .subsection-title,
  .collection-body .collection-name {
    font-size: 16px;
  }

  .section {
    padding: 32px 0;
  }

  .hero-section {
    padding-top: 28px;
  }

  .site-footer {
    margin-top: 40px;
  }
}

@media (max-width: 600px) {
  .container {
    padding: 0 16px;
  }

  .page-header,
  .breadcrumb {
    padding-left: 16px;
    padding-right: 16px;
  }

  .top-bar-inner {
    justify-content: flex-start;
  }

  .header-inner {
    gap: 8px 14px;
  }

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

  .hero-actions .btn,
  .error-actions .btn {
    width: 100%;
  }

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

  .content-section .step-list .step-item {
    grid-template-columns: minmax(0, 1fr);
    gap: 6px;
  }

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

  .scope-list {
    padding-left: 16px;
  }

  .scope-item::before {
    left: -21px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }

  .channel-rows .channel-row:hover,
  .collection-card:hover,
  .index-column:hover,
  .related-item:hover,
  .onward-item:hover,
  .collection-block:hover {
    transform: none;
  }
}