/* ==========================================================================
   飘花飘雪电影 · 全站样式
   分组：base / layout / components / pages / responsive
   ========================================================================== */

/* ==========================================================================
   base
   ========================================================================== */

:root {
  --bg: #ffffff;
  --bg-sub: #f5f6f7;
  --ink: #1a1a1a;
  --ink-soft: #5a5f66;
  --line: #e2e4e8;
  --accent: #1f5f8b;
  --accent-soft: #e8f0f6;
  --radius: 6px;
  --container: 1200px;
  --font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", Arial, sans-serif;
  --font-mono: "SFMono-Regular", Menlo, Consolas, "Liberation Mono", monospace;
}

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

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.7;
  font-weight: 400;
}

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

p {
  margin: 0;
}

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

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

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

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

figure {
  margin: 0;
}

figcaption {
  color: var(--ink-soft);
  font-size: 14px;
  line-height: 1.6;
}

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

button {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
}

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

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  padding: 10px 16px;
  background: var(--accent);
  color: #fff;
  z-index: 100;
}

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

/* ==========================================================================
   layout
   ========================================================================== */

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

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

.home-main {
  padding-bottom: 24px;
}

.inner-main {
  padding-bottom: 40px;
}

/* 顶部信息条 */
.top-bar {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 6px 24px;
  max-width: var(--container);
  margin: 0 auto;
  padding: 8px 24px;
  font-size: 14px;
  color: var(--ink-soft);
  border-bottom: 1px solid var(--line);
}

.top-bar__note {
  min-width: 0;
}

.top-bar__time {
  font-family: var(--font-mono);
  font-size: 13px;
  white-space: nowrap;
}

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

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px 24px;
  max-width: var(--container);
  margin: 0 auto;
  padding: 14px 24px;
}

.brand {
  display: inline-flex;
  align-items: baseline;
  gap: 10px;
  color: var(--ink);
  text-decoration: none;
}

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

.brand__mark {
  font-size: 20px;
  font-weight: 700;
  line-height: 1.2;
}

.brand__slogan {
  font-size: 13px;
  color: var(--ink-soft);
  line-height: 1.4;
}

/* 导航 */
.site-nav {
  display: block;
}

.nav-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 4px 22px;
}

.nav-list__link {
  display: inline-block;
  padding: 8px 2px;
  font-size: 15px;
  color: var(--ink-soft);
  border-bottom: 2px solid transparent;
  text-decoration: none;
}

.nav-list__link:hover {
  color: var(--accent);
  text-decoration: none;
}

.nav-list__link.is-current {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

/* 汉堡按钮 */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 4px;
  width: 44px;
  height: 44px;
  padding: 10px;
  background: transparent;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  cursor: pointer;
}

.nav-toggle__bar {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--ink);
}

/* 通用区块 */
.section {
  margin-top: 48px;
}

.section-head {
  margin-bottom: 20px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
}

.section-title,
.section__title {
  font-size: 24px;
}

.section-desc,
.section-lead,
.section__lead,
.section__intro {
  margin-top: 8px;
  font-size: 15px;
  color: var(--ink-soft);
  max-width: 76ch;
}

.section__text {
  margin-top: 12px;
  max-width: 76ch;
}

.subsection-title {
  font-size: 18px;
  margin-bottom: 10px;
}

/* 页脚 */
.site-footer {
  margin-top: auto;
  background: var(--bg-sub);
  border-top: 1px solid var(--line);
}

.site-footer__inner {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 32px 28px;
  max-width: var(--container);
  margin: 0 auto;
  padding: 40px 24px 28px;
}

.site-footer__brand {
  min-width: 0;
}

.site-footer__name {
  font-size: 17px;
  font-weight: 700;
  color: var(--ink);
}

.site-footer__desc {
  margin-top: 8px;
  font-size: 14px;
  color: var(--ink-soft);
  max-width: 34ch;
}

.site-footer__title {
  font-size: 15px;
  margin-bottom: 12px;
}

.site-footer__list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

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

.site-footer__list a:hover {
  color: var(--accent);
}

.site-footer__bottom {
  max-width: var(--container);
  margin: 0 auto;
  padding: 16px 24px 24px;
  border-top: 1px solid var(--line);
}

.site-footer__copyright {
  font-size: 13px;
  color: var(--ink-soft);
}

/* 面包屑 */
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  padding: 18px 0 0;
  font-size: 14px;
  color: var(--ink-soft);
}

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

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

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

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

/* 页面标题区 */
.page-header {
  padding: 16px 0 24px;
  margin-bottom: 8px;
  border-bottom: 1px solid var(--line);
}

.page-title {
  font-size: 32px;
  font-weight: 700;
  color: var(--ink);
}

.page-description {
  margin-top: 10px;
  font-size: 15px;
  color: var(--ink-soft);
  max-width: 78ch;
}

.page-header__lead {
  margin-top: 10px;
  font-size: 15px;
  color: var(--ink-soft);
  max-width: 78ch;
}

/* ==========================================================================
   components
   ========================================================================== */

/* 文本链接 */
.text-link {
  display: inline-block;
  font-size: 15px;
  font-weight: 500;
  color: var(--accent);
  border-bottom: 1px solid var(--accent);
  padding-bottom: 1px;
}

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

/* 图片容器 */
.hero__media,
.content-media,
.figure,
.media,
.media-figure,
.step-detail__figure {
  display: block;
  width: 100%;
  margin: 0;
}

.hero__media img,
.content-media img,
.figure img,
.media img,
.media-figure img,
.step-detail__figure img {
  width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: var(--radius);
  background: var(--bg-sub);
}

.hero__media img {
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.content-media img,
.figure img,
.media img,
.media-figure img,
.step-detail__figure img {
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.hero__caption,
.content-media figcaption,
.figure__caption,
.media__caption,
.media-figure__caption,
.step-detail__caption {
  margin-top: 10px;
  font-size: 14px;
  color: var(--ink-soft);
}

/* 编号清单（首页 / 频道页） */
.step-list {
  display: grid;
  gap: 14px;
  margin-top: 18px;
}

.step-list__item {
  position: relative;
  padding: 16px 18px 16px 64px;
  background: var(--bg-sub);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.step-list__num,
.step-list__index {
  position: absolute;
  left: 18px;
  top: 16px;
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 700;
  color: var(--accent);
}

.step-list__name,
.step-list__title {
  font-size: 18px;
  margin-bottom: 6px;
}

.step-list__text {
  font-size: 15px;
  color: var(--ink-soft);
}

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

/* 边界说明列表 */
.boundary-list {
  display: grid;
  gap: 8px;
}

.boundary-list__item {
  position: relative;
  padding-left: 18px;
  font-size: 15px;
  color: var(--ink-soft);
}

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

/* 两栏对照 */
.boundary-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
  margin-top: 18px;
}

.boundary-col,
.boundary-grid__col {
  min-width: 0;
  padding: 20px;
  background: var(--bg-sub);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.boundary-col__title,
.boundary-grid__title {
  font-size: 18px;
  margin-bottom: 12px;
}

.boundary-grid__col--in {
  border-left: 3px solid var(--accent);
}

.boundary-grid__col--out {
  border-left: 3px solid var(--line);
}

/* 相关页面列表 */
.related-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 12px;
  margin-top: 16px;
}

.related-list__item {
  min-width: 0;
}

.related-list__link {
  display: block;
  padding: 14px 16px;
  font-size: 15px;
  color: var(--ink);
  background: var(--bg-sub);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  text-decoration: none;
}

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

/* 相关页面（侧栏 / 底部） */
.related-pages {
  margin-top: 28px;
  padding: 22px;
  background: var(--bg-sub);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.related-pages__list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 10px;
  margin-top: 14px;
}

.related-pages__item {
  min-width: 0;
}

.related-pages__item a {
  display: block;
  padding: 10px 14px;
  font-size: 15px;
  color: var(--ink);
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  text-decoration: none;
}

.related-pages__item a:hover {
  color: var(--accent);
  border-color: var(--accent);
  text-decoration: none;
}

/* 来源注释 */
.source-note {
  margin-top: 12px;
  font-size: 13px;
  color: var(--ink-soft);
}

/* 表格通用 */
.field-table,
.data-table {
  width: 100%;
  margin-top: 16px;
  font-size: 15px;
  border: 1px solid var(--line);
}

.field-table__caption,
.data-table__caption {
  caption-side: top;
  text-align: left;
  padding: 0 0 10px;
  font-size: 14px;
  color: var(--ink-soft);
}

.field-table th,
.field-table td,
.data-table th,
.data-table td {
  padding: 12px 14px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--line);
}

.field-table thead th,
.data-table thead th {
  background: var(--bg-sub);
  font-weight: 700;
  color: var(--ink);
  white-space: nowrap;
}

.field-table tbody th {
  width: 30%;
  font-weight: 700;
  color: var(--ink);
  background: #fafbfc;
}

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

.table-wrap {
  width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

/* ==========================================================================
   pages —— 首页
   ========================================================================== */

/* 首屏定位区 */
.hero {
  padding: 40px 0 8px;
}

.hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
  gap: 40px;
  align-items: start;
}

.hero__lead {
  min-width: 0;
}

.hero__eyebrow {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.02em;
  color: var(--accent);
  text-transform: uppercase;
}

.hero__title {
  margin-top: 12px;
  font-size: 32px;
  font-weight: 700;
}

.hero__desc {
  margin-top: 14px;
  font-size: 16px;
  color: var(--ink-soft);
  max-width: 46ch;
}

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

.hero__entry {
  min-width: 0;
}

.hero-entry {
  display: flex;
  flex-direction: column;
  gap: 4px;
  height: 100%;
  padding: 14px 16px;
  background: var(--bg-sub);
  border: 1px solid var(--line);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius);
  text-decoration: none;
}

.hero-entry:hover {
  background: var(--accent-soft);
  text-decoration: none;
}

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

.hero-entry__name {
  font-size: 16px;
  font-weight: 700;
  color: var(--ink);
}

.hero-entry__note {
  font-size: 13px;
  color: var(--ink-soft);
}

.hero__media {
  min-width: 0;
}

.content-media-primary {
  margin-top: 32px;
}

/* 题材频道方向总览 */
.channels-overview {
  margin-top: 48px;
}

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

.channel-row {
  display: grid;
  grid-template-columns: 48px minmax(0, 0.9fr) minmax(0, 1.1fr) minmax(0, 1.4fr) auto;
  gap: 16px;
  align-items: baseline;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}

.channels-overview .channel-row__index {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--accent);
}

.channels-overview .channel-row__name {
  font-size: 18px;
}

.channels-overview .channel-row__tone {
  font-size: 15px;
  color: var(--ink);
}

.channels-overview .channel-row__scope {
  font-size: 14px;
  color: var(--ink-soft);
}

.channels-overview .channel-row__link {
  font-size: 14px;
  font-weight: 500;
  white-space: nowrap;
}

/* 本期专题片单速览 */
.collections-preview {
  margin-top: 48px;
}

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

.collection-card {
  display: flex;
  flex-direction: column;
  min-width: 0;
  padding: 20px;
  background: var(--bg-sub);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.collection-card__tag {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--accent);
}

.collection-card__name {
  margin-top: 8px;
  font-size: 18px;
}

.collection-card__scope,
.collection-card__makeup {
  margin-top: 10px;
  font-size: 14px;
  color: var(--ink-soft);
}

.collection-card__link {
  margin-top: 16px;
  font-size: 14px;
  font-weight: 500;
}

/* 条目字段与收录边界摘要 */
.fields-summary {
  margin-top: 48px;
}

.fields-summary__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
  gap: 32px;
  align-items: start;
}

.fields-summary__col {
  min-width: 0;
}

.fields-summary .field-table {
  margin-top: 0;
}

.boundary-block {
  padding: 20px;
  background: var(--bg-sub);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.boundary-block__lead {
  font-size: 15px;
  color: var(--ink);
  margin-bottom: 14px;
}

.boundary-block__note {
  margin-top: 14px;
  font-size: 13px;
  color: var(--ink-soft);
}

/* 查阅路径三步概览 */
.path-preview {
  margin-top: 48px;
}

.path-preview__more,
.updates-preview__more {
  margin-top: 18px;
}

/* 收录范围调整记录 */
.updates-preview {
  margin-top: 48px;
}

.update-list {
  display: grid;
  gap: 14px;
}

.update-item {
  padding: 18px 20px;
  background: var(--bg-sub);
  border: 1px solid var(--line);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius);
}

.update-item__time {
  display: block;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--accent);
}

.update-item__title {
  margin-top: 6px;
  font-size: 18px;
}

.update-item__reason {
  margin-top: 8px;
  font-size: 15px;
  color: var(--ink-soft);
}

/* 站内页面索引 */
.page-index {
  margin-top: 48px;
}

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

.index-card {
  display: flex;
  flex-direction: column;
  min-width: 0;
  padding: 18px;
  background: var(--bg-sub);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.index-card__name {
  font-size: 17px;
}

.index-card__desc {
  margin-top: 8px;
  font-size: 14px;
  color: var(--ink-soft);
}

.index-card__link {
  margin-top: auto;
  padding-top: 14px;
  font-size: 14px;
  font-weight: 500;
}

/* ==========================================================================
   pages —— 题材频道
   ========================================================================== */

.page-channels .section--intro {
  margin-top: 32px;
}

.page-channels .figure--wide {
  margin-top: 20px;
}

.page-channels .figure--wide img {
  aspect-ratio: 21 / 9;
}

.page-channels .channel-list {
  display: grid;
  gap: 14px;
  margin-top: 18px;
}

.page-channels .channel-list__item {
  min-width: 0;
}

.page-channels .channel-row {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1fr) minmax(0, 1.4fr);
  gap: 8px 24px;
  align-items: start;
  padding: 18px 20px;
  background: var(--bg-sub);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.page-channels .channel-row__name {
  font-size: 18px;
}

.page-channels .channel-row__orientation {
  font-size: 15px;
  color: var(--ink);
}

.page-channels .channel-row__scope {
  font-size: 14px;
  color: var(--ink-soft);
}

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

/* ==========================================================================
   pages —— 专题片单
   ========================================================================== */

.page-collections .page-layout {
  display: block;
}

.page-collections .collections-map,
.page-collections .collections-detail,
.page-collections .collections-criteria,
.page-collections .collections-order {
  margin-top: 40px;
}

.page-collections .collections-map__table {
  margin-top: 16px;
}

.page-collections .collection-item {
  padding: 18px 20px;
  margin-top: 14px;
  background: var(--bg-sub);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.page-collections .collection-item__title {
  font-size: 18px;
}

.page-collections .collection-item__scope,
.page-collections .collection-item__struct {
  margin-top: 8px;
  font-size: 15px;
  color: var(--ink-soft);
}

.page-collections .criteria-list {
  display: grid;
  gap: 12px;
  margin-top: 18px;
}

.page-collections .criteria-list__item {
  display: flex;
  gap: 12px;
  align-items: baseline;
  padding: 14px 16px;
  background: var(--bg-sub);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.page-collections .criteria-list__index {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
  color: var(--accent);
}

.page-collections .criteria-list__text {
  min-width: 0;
  font-size: 15px;
  color: var(--ink-soft);
}

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

.page-collections .collections-order__text {
  margin-top: 16px;
  font-size: 15px;
  color: var(--ink-soft);
  max-width: 76ch;
}

/* ==========================================================================
   pages —— 条目字段说明
   ========================================================================== */

.page-fields .section--field-table {
  margin-top: 32px;
}

.page-fields .media--wide {
  margin-top: 18px;
}

.page-fields .field-table {
  margin-top: 18px;
}

.page-fields .numbered-list {
  display: grid;
  gap: 14px;
  margin-top: 18px;
}

.page-fields .numbered-list__item {
  position: relative;
  padding: 16px 18px 16px 60px;
  background: var(--bg-sub);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.page-fields .numbered-list__index {
  position: absolute;
  left: 18px;
  top: 16px;
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 700;
  color: var(--accent);
}

.page-fields .numbered-list__title {
  font-size: 17px;
  margin-bottom: 6px;
}

.page-fields .numbered-list__text {
  font-size: 15px;
  color: var(--ink-soft);
}

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

.page-fields .section--correspondence .section__text {
  max-width: 76ch;
}

/* ==========================================================================
   pages —— 查阅路径指引
   ========================================================================== */

.page-path-guide .path-steps,
.page-path-guide .step-detail,
.page-path-guide .scene-paths,
.page-path-guide .path-notes {
  margin-top: 40px;
}

.page-path-guide .path-steps__list {
  display: grid;
  gap: 14px;
  margin-top: 18px;
}

.page-path-guide .path-steps__item {
  position: relative;
  padding: 18px 20px 18px 66px;
  background: var(--bg-sub);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.page-path-guide .path-steps__index {
  position: absolute;
  left: 20px;
  top: 18px;
  font-family: var(--font-mono);
  font-size: 16px;
  font-weight: 700;
  color: var(--accent);
}

.page-path-guide .path-steps__body {
  min-width: 0;
}

.page-path-guide .path-steps__name {
  font-size: 18px;
  margin-bottom: 6px;
}

.page-path-guide .path-steps__text {
  font-size: 15px;
  color: var(--ink-soft);
}

.page-path-guide .step-detail__figure {
  margin-top: 18px;
}

.page-path-guide .step-detail__rows {
  display: grid;
  gap: 14px;
  margin-top: 20px;
}

.page-path-guide .step-detail__row {
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius);
}

.page-path-guide .step-detail__name {
  font-size: 18px;
}

.page-path-guide .step-detail__info {
  margin-top: 8px;
  font-size: 15px;
  color: var(--ink-soft);
}

.page-path-guide .step-detail__entry {
  margin-top: 10px;
  font-size: 14px;
}

.page-path-guide .scene-paths__grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin-top: 18px;
}

.page-path-guide .scene-paths__card {
  display: flex;
  flex-direction: column;
  min-width: 0;
  padding: 20px;
  background: var(--bg-sub);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.page-path-guide .scene-paths__name {
  font-size: 18px;
}

.page-path-guide .scene-paths__desc {
  margin-top: 10px;
  font-size: 15px;
  color: var(--ink-soft);
}

.page-path-guide .scene-paths__route {
  margin-top: auto;
  padding-top: 14px;
  font-size: 14px;
}

.page-path-guide .path-notes__list {
  display: grid;
  gap: 14px;
  margin-top: 18px;
}

.page-path-guide .path-notes__item {
  position: relative;
  padding: 16px 18px 16px 60px;
  background: var(--bg-sub);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.page-path-guide .path-notes__index {
  position: absolute;
  left: 18px;
  top: 16px;
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 700;
  color: var(--accent);
}

.page-path-guide .path-notes__body {
  min-width: 0;
}

.page-path-guide .path-notes__name {
  font-size: 17px;
  margin-bottom: 6px;
}

.page-path-guide .path-notes__text {
  font-size: 15px;
  color: var(--ink-soft);
}

/* ==========================================================================
   pages —— 收录范围调整记录
   ========================================================================== */

.page-updates .section {
  margin-top: 40px;
}

.page-updates .section--year-jump {
  margin-top: 32px;
}

.page-updates .year-jump {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 14px;
}

.page-updates .year-jump__link {
  display: inline-block;
  padding: 8px 18px;
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--ink);
  background: var(--bg-sub);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  text-decoration: none;
}

.page-updates .year-jump__link:hover {
  color: var(--accent);
  border-color: var(--accent);
  text-decoration: none;
}

.page-updates .timeline {
  margin-top: 18px;
}

.page-updates .timeline__group {
  padding-bottom: 24px;
  margin-bottom: 24px;
  border-bottom: 1px solid var(--line);
}

.page-updates .timeline__group:last-child {
  padding-bottom: 0;
  margin-bottom: 0;
  border-bottom: 0;
}

.page-updates .timeline__year {
  font-size: 24px;
  color: var(--accent);
}

.page-updates .timeline__month {
  margin-top: 14px;
  padding: 12px 16px;
  background: var(--bg-sub);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.page-updates .timeline__month-title {
  font-size: 17px;
}

.page-updates .timeline__month-summary {
  margin-top: 6px;
  font-size: 14px;
  color: var(--ink-soft);
}

.page-updates .timeline__list {
  display: grid;
  gap: 12px;
  margin-top: 14px;
}

.page-updates .timeline__item {
  display: grid;
  grid-template-columns: 110px minmax(0, 1fr);
  gap: 16px;
  align-items: start;
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius);
}

.page-updates .timeline__date {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--accent);
}

.page-updates .timeline__body {
  min-width: 0;
}

.page-updates .timeline__item-title {
  font-size: 17px;
}

.page-updates .timeline__text,
.page-updates .timeline__reason {
  margin-top: 6px;
  font-size: 15px;
  color: var(--ink-soft);
}

.page-updates .reason-detail {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 18px;
  margin-top: 20px;
}

.page-updates .reason-detail__item {
  min-width: 0;
  padding: 18px 20px;
  background: var(--bg-sub);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.page-updates .reason-detail__title {
  font-size: 17px;
}

.page-updates .reason-detail__text {
  margin-top: 8px;
  font-size: 15px;
  color: var(--ink-soft);
}

.page-updates .impact-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
  margin-top: 18px;
}

.page-updates .impact-grid__col {
  min-width: 0;
  padding: 20px;
  background: var(--bg-sub);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.page-updates .impact-grid__col--affected {
  border-left: 3px solid var(--accent);
}

.page-updates .impact-grid__col--way {
  border-left: 3px solid var(--line);
}

.page-updates .impact-grid__title {
  font-size: 18px;
  margin-bottom: 12px;
}

.page-updates .impact-list {
  display: grid;
  gap: 10px;
}

.page-updates .impact-list__item {
  min-width: 0;
  font-size: 15px;
  color: var(--ink-soft);
}

.page-updates .impact-list__link {
  font-size: 15px;
}

.page-updates .section--reading-hint .section__text {
  max-width: 76ch;
}

/* ==========================================================================
   pages —— 404
   ========================================================================== */

.site-error .error-main {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 60vh;
  padding-top: 40px;
  padding-bottom: 64px;
}

.error-block {
  max-width: 620px;
  width: 100%;
  padding: 40px 32px;
  text-align: left;
  background: var(--bg-sub);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.error-block__code {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--accent);
}

.error-block__title {
  margin-top: 10px;
  font-size: 32px;
}

.error-block__text {
  margin-top: 14px;
  font-size: 16px;
  color: var(--ink-soft);
}

.error-block__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
  margin-top: 24px;
}

.error-block__btn {
  display: inline-block;
  padding: 12px 24px;
  min-height: 44px;
  line-height: 20px;
  font-size: 15px;
  font-weight: 500;
  color: #fff;
  background: var(--accent);
  border-radius: var(--radius);
  text-decoration: none;
}

.error-block__btn:hover {
  background: #17496b;
  text-decoration: none;
}

.error-block__link {
  font-size: 15px;
  font-weight: 500;
}

/* ==========================================================================
   responsive
   ========================================================================== */

@media (max-width: 1024px) {
  .hero__grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 28px;
  }

  .hero__desc {
    max-width: none;
  }

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

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

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

  .page-path-guide .scene-paths__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .channel-row {
    grid-template-columns: 40px minmax(0, 1fr) minmax(0, 1fr) auto;
    grid-template-areas:
      "index name name link"
      "index tone scope scope";
    row-gap: 6px;
  }

  .channels-overview .channel-row__index { grid-area: index; }
  .channels-overview .channel-row__name { grid-area: name; }
  .channels-overview .channel-row__tone { grid-area: tone; }
  .channels-overview .channel-row__scope { grid-area: scope; }
  .channels-overview .channel-row__link { grid-area: link; }

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

@media (max-width: 768px) {
  .site-header__inner {
    padding: 12px 18px;
    gap: 10px;
  }

  .site-main {
    padding: 0 18px;
  }

  .top-bar {
    padding: 8px 18px;
  }

  .nav-toggle {
    display: flex;
  }

  .site-nav {
    flex: 1 1 100%;
    width: 100%;
    display: block;
  }

  .nav-list {
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    width: 100%;
    padding: 6px 0 4px;
    border-top: 1px solid var(--line);
  }

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

  .nav-list__item {
    min-width: 0;
  }

  .nav-list__link {
    display: block;
    padding: 12px 2px;
    font-size: 16px;
    border-bottom: 1px solid var(--line);
  }

  .nav-list__link.is-current {
    border-bottom-color: var(--line);
    border-left: 3px solid var(--accent);
    padding-left: 10px;
  }

  .page-title,
  .hero__title,
  .error-block__title {
    font-size: 26px;
  }

  .section-title,
  .section__title {
    font-size: 21px;
  }

  .hero {
    padding-top: 28px;
  }

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

  .collection-cards,
  .index-grid,
  .page-path-guide .scene-paths__grid,
  .page-updates .impact-grid,
  .boundary-grid,
  .page-channels .boundary-grid,
  .page-fields .section--boundary .boundary-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .step-list__item,
  .page-fields .numbered-list__item,
  .page-path-guide .path-notes__item {
    padding: 16px 16px 16px 52px;
  }

  .step-list__num,
  .step-list__index,
  .page-fields .numbered-list__index,
  .page-path-guide .path-notes__index {
    left: 16px;
  }

  .page-path-guide .path-steps__item {
    padding: 18px 16px 18px 54px;
  }

  .page-path-guide .path-steps__index {
    left: 16px;
  }

  .page-updates .timeline__item {
    grid-template-columns: minmax(0, 1fr);
    gap: 8px;
  }

  .site-footer__inner {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 26px 20px;
    padding: 32px 18px 24px;
  }

  .site-footer__brand {
    grid-column: 1 / -1;
  }

  .site-footer__bottom {
    padding: 16px 18px 24px;
  }

  .field-table tbody th {
    width: 38%;
  }

  .error-block {
    padding: 32px 22px;
  }
}

@media (max-width: 480px) {
  .site-main {
    padding: 0 14px;
  }

  .top-bar {
    padding: 8px 14px;
    font-size: 13px;
  }

  .site-header__inner {
    padding: 12px 14px;
  }

  .brand__slogan {
    display: none;
  }

  .site-footer__inner {
    grid-template-columns: minmax(0, 1fr);
    padding: 28px 14px 20px;
  }

  .site-footer__bottom {
    padding: 14px 14px 22px;
  }

  .field-table th,
  .field-table td,
  .data-table th,
  .data-table td {
    padding: 10px 12px;
    font-size: 14px;
  }

  .page-title,
  .hero__title,
  .error-block__title {
    font-size: 23px;
  }
}