/* ==========================================================================
   九九影院 · 全站样式
   分组：base / layout / components / pages / responsive
   ========================================================================== */

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

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

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

body {
  margin: 0;
  background-color: #f5f2ec;
  color: #111111;
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", system-ui, sans-serif;
  font-size: 16px;
  font-weight: 400;
  line-height: 1.8;
}

h1,
h2,
h3,
h4 {
  margin: 0 0 12px;
  font-weight: 700;
  color: #111111;
}

h1 {
  font-size: 34px;
  line-height: 1.3;
}

h2 {
  font-size: 24px;
  line-height: 1.4;
}

h3 {
  font-size: 18px;
  line-height: 1.5;
}

h4 {
  font-size: 16px;
  line-height: 1.5;
}

p {
  margin: 0 0 14px;
}

ul,
ol {
  margin: 0 0 14px;
  padding-left: 0;
  list-style: none;
}

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

a {
  color: #1f3a6e;
  text-decoration: none;
}

a:hover,
a:focus {
  color: #b23a2e;
  text-decoration: underline;
}

strong {
  font-weight: 700;
}

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

:focus-visible {
  outline: 2px solid #1f3a6e;
  outline-offset: 2px;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 60;
  padding: 10px 16px;
  background-color: #111111;
  color: #f5f2ec;
  font-size: 14px;
}

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

/* --------------------------------------------------------------------------
   layout · 页头与主导航
   -------------------------------------------------------------------------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background-color: #ffffff;
  border-bottom: 3px solid #111111;
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 24px;
  max-width: 1120px;
  min-height: 72px;
  margin: 0 auto;
  padding: 0 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex: 0 0 auto;
  color: #111111;
  font-weight: 700;
}

.brand:hover,
.brand:focus {
  color: #111111;
  text-decoration: none;
}

.brand-mark {
  display: inline-block;
  width: 16px;
  height: 16px;
  background-color: #b23a2e;
  border: 2px solid #111111;
}

.brand-name {
  font-size: 20px;
  line-height: 1.2;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 4px;
  width: 44px;
  height: 44px;
  padding: 0 10px;
  background-color: #ffffff;
  border: 2px solid #111111;
  border-radius: 0;
  cursor: pointer;
}

.nav-toggle-bar {
  display: block;
  width: 100%;
  height: 2px;
  background-color: #111111;
}

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

.nav-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 4px 20px;
  margin: 0;
}

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

.nav-link {
  display: inline-block;
  padding: 8px 2px;
  color: #111111;
  font-size: 15px;
  line-height: 1.4;
  border-bottom: 2px solid transparent;
}

.nav-link:hover,
.nav-link:focus {
  color: #b23a2e;
  border-bottom-color: #b23a2e;
  text-decoration: none;
}

.nav-link.is-current {
  color: #1f3a6e;
  font-weight: 700;
  border-bottom-color: #1f3a6e;
}

/* --------------------------------------------------------------------------
   layout · 主内容容器
   -------------------------------------------------------------------------- */

.site-main {
  display: block;
}

.home-main,
.inner-main {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px 64px;
}

.inner-main {
  padding-top: 20px;
}

.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 18px;
  font-size: 14px;
  color: #6b6b6b;
}

.breadcrumb a {
  color: #6b6b6b;
}

.breadcrumb a:hover,
.breadcrumb a:focus {
  color: #b23a2e;
}

.breadcrumb-sep {
  color: #6b6b6b;
}

.breadcrumb-current {
  color: #111111;
  font-weight: 700;
}

.page-header {
  padding: 0 0 24px;
  margin-bottom: 32px;
  border-bottom: 3px solid #111111;
}

.page-title {
  margin: 0 0 12px;
  font-size: 34px;
  line-height: 1.3;
  color: #111111;
}

.page-description {
  max-width: 820px;
  margin: 0;
  color: #3d3d3d;
  font-size: 16px;
}

.page-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 40px;
}

.page-layout.sidebar-left,
.sidebar-left .page-layout {
  grid-template-columns: 260px minmax(0, 1fr);
}

/* --------------------------------------------------------------------------
   layout · 页脚
   -------------------------------------------------------------------------- */

.site-footer {
  background-color: #111111;
  color: #d8d4cc;
  border-top: 3px solid #111111;
}

.footer-inner {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 32px;
  max-width: 1120px;
  margin: 0 auto;
  padding: 48px 24px 32px;
}

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

.footer-title {
  margin: 0 0 14px;
  font-size: 16px;
  line-height: 1.4;
  color: #ffffff;
  border-bottom: 1px solid #4a4a4a;
  padding-bottom: 8px;
}

.footer-text {
  margin: 0 0 12px;
  font-size: 14px;
  line-height: 1.8;
  color: #b9b4ab;
}

.footer-list {
  margin: 0;
  padding: 0;
}

.footer-list li {
  margin-bottom: 8px;
  font-size: 14px;
  line-height: 1.6;
}

.footer-list a {
  color: #d8d4cc;
}

.footer-list a:hover,
.footer-list a:focus {
  color: #ffffff;
  text-decoration: underline;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 0;
}

.footer-links a {
  color: #d8d4cc;
}

.footer-links a:hover,
.footer-links a:focus {
  color: #ffffff;
}

.back-top {
  padding: 2px 10px;
  border: 1px solid #4a4a4a;
}

.footer-bottom {
  border-top: 1px solid #333333;
}

.footer-copy {
  max-width: 1120px;
  margin: 0 auto;
  padding: 18px 24px 24px;
  font-size: 13px;
  line-height: 1.7;
  color: #8f8b84;
}

/* --------------------------------------------------------------------------
   components · 通用区块与标题
   -------------------------------------------------------------------------- */

.section {
  padding: 40px 0;
  border-top: 1px solid #d5d0c6;
}

.section-head {
  margin-bottom: 24px;
  padding-bottom: 14px;
  border-bottom: 2px solid #111111;
}

.section-title {
  margin: 0 0 10px;
  font-size: 24px;
  line-height: 1.4;
}

.section-desc,
.section-note,
.section-lead,
.section-text {
  max-width: 860px;
  margin: 0;
  color: #3d3d3d;
}

.section-more,
.section-entry,
.section-foot,
.section-link,
.special-more,
.division-more {
  margin: 20px 0 0;
  font-size: 15px;
}

.more-link,
.section-entry a,
.section-foot a,
.section-link a,
.special-more a,
.division-more a {
  display: inline-block;
  padding-bottom: 2px;
  color: #b23a2e;
  font-weight: 700;
  border-bottom: 2px solid #b23a2e;
}

.more-link:hover,
.section-entry a:hover,
.section-foot a:hover,
.section-link a:hover,
.special-more a:hover,
.division-more a:hover {
  color: #111111;
  border-bottom-color: #111111;
  text-decoration: none;
}

/* 通用图片容器 */
figure {
  margin: 0;
}

.page-media,
.hero-media,
.section-media,
.catalog-figure,
.guide-figure,
.boundary-figure {
  margin: 0 0 24px;
}

.page-media img,
.hero-media img,
.section-media img,
.catalog-figure img,
.guide-figure img,
.boundary-figure img {
  width: 100%;
  height: auto;
  object-fit: cover;
  background-color: #e6e1d8;
  border: 1px solid #d5d0c6;
}

.hero-media img {
  aspect-ratio: 16 / 9;
}

.section-media img,
.page-media img,
.catalog-figure img,
.guide-figure img,
.boundary-figure img {
  aspect-ratio: 21 / 9;
}

.hero-caption,
.section-caption,
.page-media figcaption,
.section-media figcaption,
.catalog-figure figcaption,
.guide-figure figcaption,
.boundary-figure figcaption,
.figure-caption {
  margin-top: 8px;
  font-size: 13px;
  line-height: 1.7;
  color: #6b6b6b;
}

/* 通用编号/步骤列表 */
.step-list {
  margin: 0;
  padding: 0;
}

.step-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 14px 0;
  border-bottom: 1px solid #d5d0c6;
}

.step-index,
.step-num {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 28px;
  height: 28px;
  background-color: #c9971f;
  color: #111111;
  font-size: 14px;
  font-weight: 700;
  line-height: 1;
}

.step-text {
  margin: 0;
  color: #3d3d3d;
}

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

.step-body p {
  margin: 0 0 8px;
}

.step-title {
  margin: 0 0 6px;
  font-size: 17px;
  line-height: 1.5;
}

/* 通用字段表格 */
.field-table-wrap {
  overflow-x: auto;
  border: 1px solid #d5d0c6;
}

.field-table {
  width: 100%;
  min-width: 560px;
  background-color: #ffffff;
  font-size: 15px;
}

.field-caption {
  caption-side: top;
  padding: 12px 14px;
  text-align: left;
  font-size: 14px;
  color: #6b6b6b;
  border-bottom: 1px solid #d5d0c6;
}

.field-table th,
.field-table td {
  padding: 12px 14px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid #e2ddd3;
}

.field-table thead th {
  background-color: #111111;
  color: #ffffff;
  font-weight: 700;
  white-space: nowrap;
}

.field-table tbody th {
  width: 22%;
  color: #111111;
  font-weight: 700;
  background-color: #faf8f4;
}

/* 通用状态标签 */
.entry-status {
  display: inline-block;
  padding: 2px 8px;
  font-size: 13px;
  line-height: 1.5;
  font-weight: 700;
  white-space: nowrap;
  border: 1px solid currentColor;
}

.status-on {
  color: #1f3a6e;
}

.status-review {
  color: #c9971f;
}

.status-off {
  color: #6b6b6b;
}

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

.hero-section {
  padding: 40px 0 36px;
  border-bottom: 3px solid #111111;
}

.hero-columns {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr);
  gap: 40px;
  align-items: start;
}

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

.hero-kicker {
  margin: 0 0 12px;
  font-size: 14px;
  font-weight: 700;
  color: #b23a2e;
}

.hero-title {
  margin: 0 0 16px;
  font-size: 34px;
  line-height: 1.3;
}

.hero-lead {
  margin: 0 0 12px;
  color: #3d3d3d;
}

.hero-note {
  margin: 0;
  padding-left: 14px;
  border-left: 3px solid #c9971f;
  font-size: 15px;
  color: #6b6b6b;
}

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

.path-block {
  display: flex;
  flex-direction: column;
  padding: 18px 16px;
  background-color: #ffffff;
  border: 2px solid #111111;
  border-radius: 4px;
}

.path-block:hover {
  border-color: #b23a2e;
  background-color: #fdfbf7;
}

.path-title {
  margin: 0 0 10px;
  font-size: 17px;
  line-height: 1.4;
}

.path-desc {
  flex: 1 1 auto;
  margin: 0 0 14px;
  font-size: 14px;
  line-height: 1.7;
  color: #3d3d3d;
}

.path-link {
  align-self: flex-start;
  font-size: 14px;
  font-weight: 700;
  color: #1f3a6e;
  border-bottom: 2px solid #1f3a6e;
}

.path-link:hover,
.path-link:focus {
  color: #b23a2e;
  border-bottom-color: #b23a2e;
  text-decoration: none;
}

.hero-media {
  margin: 32px 0 0;
}

/* 题材频道方向总览 */
.channel-groups {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 0 32px;
}

.channel-group {
  padding: 20px 0;
  border-bottom: 1px solid #d5d0c6;
}

.channel-name {
  margin: 0 0 10px;
  font-size: 18px;
  line-height: 1.5;
}

.channel-scope {
  margin: 0 0 12px;
  font-size: 15px;
  line-height: 1.8;
  color: #3d3d3d;
}

.channel-points {
  margin: 0;
  padding: 0;
}

.channel-points li {
  position: relative;
  padding-left: 16px;
  margin-bottom: 8px;
  font-size: 14px;
  line-height: 1.7;
  color: #6b6b6b;
}

.channel-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 8px;
  height: 2px;
  background-color: #1f3a6e;
}

/* 本期专题片单速览 */
.special-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
}

.special-card {
  display: flex;
  flex-direction: column;
  padding: 20px 18px;
  background-color: #ffffff;
  border: 1px solid #d5d0c6;
  border-left: 4px solid #1f3a6e;
  border-radius: 4px;
}

.special-card:hover {
  border-color: #111111;
  border-left-color: #b23a2e;
  background-color: #fdfbf7;
}

.special-title {
  margin: 0 0 10px;
  font-size: 17px;
  line-height: 1.4;
}

.special-scope {
  margin: 0 0 12px;
  font-size: 14px;
  line-height: 1.7;
  color: #3d3d3d;
}

.special-items {
  margin: 0;
  padding: 0;
}

.special-items li {
  position: relative;
  padding-left: 16px;
  margin-bottom: 6px;
  font-size: 14px;
  line-height: 1.7;
  color: #6b6b6b;
}

.special-items li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 8px;
  height: 2px;
  background-color: #c9971f;
}

/* 观看前需要了解的事项 */
.tip-list {
  counter-reset: tip;
  margin: 0;
  padding: 0;
}

.tip-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 16px 0;
  border-bottom: 1px solid #d5d0c6;
}

.tip-index {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 30px;
  height: 30px;
  background-color: #111111;
  color: #ffffff;
  font-size: 14px;
  font-weight: 700;
  line-height: 1;
}

.tip-text {
  margin: 0;
  color: #3d3d3d;
}

/* 收录边界与反馈入口 */
.boundary-columns {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}

.boundary-block {
  padding: 20px 18px;
  background-color: #ffffff;
  border: 1px solid #d5d0c6;
  border-top: 4px solid #b23a2e;
  border-radius: 4px;
}

.boundary-name {
  margin: 0 0 12px;
  font-size: 17px;
  line-height: 1.4;
}

.boundary-points {
  margin: 0;
  padding: 0;
}

.boundary-points li {
  position: relative;
  padding-left: 16px;
  margin-bottom: 8px;
  font-size: 14px;
  line-height: 1.7;
  color: #3d3d3d;
}

.boundary-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 8px;
  height: 2px;
  background-color: #b23a2e;
}

/* --------------------------------------------------------------------------
   pages · 题材频道
   -------------------------------------------------------------------------- */

.channel-index {
  align-self: start;
  padding: 18px 16px;
  background-color: #ffffff;
  border: 1px solid #d5d0c6;
  border-top: 4px solid #1f3a6e;
  border-radius: 4px;
}

.aside-title {
  margin: 0 0 12px;
  padding-bottom: 8px;
  font-size: 16px;
  line-height: 1.4;
  border-bottom: 1px solid #d5d0c6;
}

.channel-index-list {
  margin: 0 0 12px;
  padding: 0;
}

.channel-index-list li {
  margin-bottom: 8px;
  font-size: 14px;
  line-height: 1.6;
}

.channel-index-list a {
  color: #111111;
}

.channel-index-list a:hover,
.channel-index-list a:focus {
  color: #b23a2e;
  text-decoration: underline;
}

.aside-note {
  margin: 0;
  padding-top: 10px;
  font-size: 13px;
  line-height: 1.7;
  color: #6b6b6b;
  border-top: 1px solid #e2ddd3;
}

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

.channel-body .channel-group {
  padding: 22px 0;
  border-bottom: 1px solid #d5d0c6;
}

.channel-sub {
  margin: 0 0 10px;
  font-size: 15px;
  line-height: 1.5;
  color: #1f3a6e;
}

.channel-directions {
  margin: 0 0 12px;
  padding: 0;
}

.channel-directions li {
  position: relative;
  padding-left: 16px;
  margin-bottom: 8px;
  font-size: 15px;
  line-height: 1.8;
  color: #3d3d3d;
}

.channel-directions li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 12px;
  width: 8px;
  height: 2px;
  background-color: #c9971f;
}

.channel-entry {
  margin: 0;
  font-size: 15px;
}

.channel-entry a {
  display: inline-block;
  color: #b23a2e;
  font-weight: 700;
  border-bottom: 2px solid #b23a2e;
}

.channel-entry a:hover,
.channel-entry a:focus {
  color: #111111;
  border-bottom-color: #111111;
  text-decoration: none;
}

.channel-compare,
.channel-path {
  padding: 26px 0;
  border-bottom: 1px solid #d5d0c6;
}

.channel-compare .section-text,
.channel-path .section-text {
  margin-bottom: 16px;
}

.compare-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 18px;
  margin: 0;
  padding: 0;
}

.compare-item {
  padding: 16px;
  background-color: #ffffff;
  border: 1px solid #d5d0c6;
  border-radius: 4px;
}

.compare-title {
  margin: 0 0 8px;
  font-size: 16px;
  line-height: 1.4;
}

.compare-item p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: #3d3d3d;
}

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

.specials-section,
.diff-section,
.division-section {
  padding: 32px 0;
  border-top: 1px solid #d5d0c6;
}

.specials-section {
  border-top: 3px solid #111111;
}

.specials-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
}

.specials-grid .special-card {
  border-left: 4px solid #c9971f;
}

.special-tag {
  align-self: flex-start;
  margin: 0 0 10px;
  padding: 2px 10px;
  background-color: #111111;
  color: #ffffff;
  font-size: 13px;
  line-height: 1.6;
}

.special-name {
  margin: 0 0 10px;
  font-size: 18px;
  line-height: 1.4;
}

.special-entries {
  margin: 12px 0 0;
  padding-top: 12px;
  border-top: 1px solid #e2ddd3;
}

.special-entries-title {
  margin: 0 0 8px;
  font-size: 14px;
  line-height: 1.5;
  color: #6b6b6b;
}

.entry-list {
  margin: 0;
  padding: 0;
}

.specials-grid .entry-item {
  position: relative;
  padding-left: 16px;
  margin-bottom: 6px;
  font-size: 14px;
  line-height: 1.7;
  color: #3d3d3d;
}

.specials-grid .entry-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 8px;
  height: 2px;
  background-color: #1f3a6e;
}

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

.diff-col {
  padding: 20px 18px;
  background-color: #ffffff;
  border: 1px solid #d5d0c6;
  border-top: 4px solid #1f3a6e;
  border-radius: 4px;
}

.diff-col-title {
  margin: 0 0 12px;
  font-size: 17px;
  line-height: 1.4;
}

.diff-list {
  margin: 0;
  padding: 0;
}

.diff-item {
  position: relative;
  padding-left: 16px;
  margin-bottom: 8px;
  font-size: 14px;
  line-height: 1.8;
  color: #3d3d3d;
}

.diff-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 11px;
  width: 8px;
  height: 2px;
  background-color: #b23a2e;
}

.division-body {
  max-width: 860px;
}

.division-text {
  color: #3d3d3d;
}

/* --------------------------------------------------------------------------
   pages · 剧集目录
   -------------------------------------------------------------------------- */

.catalog-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 40px;
}

.catalog-section {
  padding: 28px 0;
  border-top: 1px solid #d5d0c6;
}

.catalog-entries {
  border-top: 3px solid #111111;
  padding-top: 0;
}

.catalog-group {
  padding: 18px 0;
  border-bottom: 1px solid #d5d0c6;
}

.group-title {
  margin: 0 0 12px;
  font-size: 16px;
  line-height: 1.5;
  color: #1f3a6e;
}

.catalog-entries .entry-list {
  margin: 0;
  padding: 0;
}

.catalog-entries .entry-row {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr) 90px 96px;
  gap: 12px;
  align-items: center;
  padding: 12px 0;
  border-bottom: 1px solid #e2ddd3;
  font-size: 15px;
}

.catalog-entries .entry-row:last-child {
  border-bottom: none;
}

.entry-name {
  font-weight: 700;
  color: #111111;
}

.entry-field {
  font-size: 14px;
  color: #3d3d3d;
}

.catalog-status .status-list {
  margin: 0 0 16px;
  padding: 0;
}

.catalog-status .status-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid #e2ddd3;
}

.catalog-status .status-text {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: #3d3d3d;
}

.status-scope {
  margin: 0;
  font-size: 15px;
}

.status-scope a {
  color: #b23a2e;
  font-weight: 700;
  border-bottom: 2px solid #b23a2e;
}

.status-scope a:hover,
.status-scope a:focus {
  color: #111111;
  border-bottom-color: #111111;
  text-decoration: none;
}

.catalog-steps .step-index {
  background-color: #1f3a6e;
  color: #ffffff;
}

.catalog-steps .step-text a {
  color: #b23a2e;
  border-bottom: 1px solid #b23a2e;
}

.catalog-steps .step-text a:hover,
.catalog-steps .step-text a:focus {
  color: #111111;
  border-bottom-color: #111111;
  text-decoration: none;
}

/* --------------------------------------------------------------------------
   pages · 观看指引
   -------------------------------------------------------------------------- */

.guide-aside {
  align-self: start;
  padding: 18px 16px;
  background-color: #ffffff;
  border: 1px solid #d5d0c6;
  border-top: 4px solid #c9971f;
  border-radius: 4px;
}

.aside-list {
  margin: 0 0 12px;
  padding: 0;
}

.aside-list li {
  margin-bottom: 8px;
  font-size: 14px;
  line-height: 1.6;
}

.aside-list a {
  color: #111111;
}

.aside-list a:hover,
.aside-list a:focus {
  color: #b23a2e;
  text-decoration: underline;
}

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

.guide-section {
  padding: 26px 0;
  border-bottom: 1px solid #d5d0c6;
}

.guide-section:first-child {
  padding-top: 0;
}

.guide-section .section-lead {
  margin-bottom: 18px;
}

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

.guide-section .step-index {
  background-color: #c9971f;
  color: #111111;
}

.faq-list {
  margin: 0;
}

.faq-item {
  border: 1px solid #d5d0c6;
  border-radius: 4px;
  background-color: #ffffff;
  margin-bottom: 10px;
}

.faq-question {
  padding: 14px 16px;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.6;
  color: #111111;
  cursor: pointer;
  list-style: none;
}

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

.faq-question::after {
  content: "+";
  float: right;
  margin-left: 12px;
  color: #b23a2e;
  font-weight: 700;
}

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

.faq-item[open] .faq-question {
  border-bottom: 1px solid #e2ddd3;
}

.faq-question:hover {
  color: #b23a2e;
}

.faq-answer {
  padding: 14px 16px;
  font-size: 15px;
  line-height: 1.8;
  color: #3d3d3d;
}

.faq-answer p:last-child {
  margin-bottom: 0;
}

.field-note-grid,
.help-entry-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 18px;
}

.field-note,
.help-entry {
  padding: 18px 16px;
  background-color: #ffffff;
  border: 1px solid #d5d0c6;
  border-left: 4px solid #1f3a6e;
  border-radius: 4px;
}

.field-note-title,
.help-entry-title {
  margin: 0 0 8px;
  font-size: 16px;
  line-height: 1.4;
}

.field-note-text,
.help-entry-text {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: #3d3d3d;
}

.help-entry-link {
  margin: 12px 0 0;
  font-size: 14px;
}

.help-entry-link a {
  color: #b23a2e;
  font-weight: 700;
  border-bottom: 1px solid #b23a2e;
}

.help-entry-link a:hover,
.help-entry-link a:focus {
  color: #111111;
  border-bottom-color: #111111;
  text-decoration: none;
}

/* --------------------------------------------------------------------------
   pages · 收录边界与反馈
   -------------------------------------------------------------------------- */

.boundary-section {
  padding: 28px 0;
  border-top: 1px solid #d5d0c6;
}

.boundary-scope {
  border-top: 3px solid #111111;
  padding-top: 0;
}

.boundary-section .section-text {
  margin-bottom: 18px;
}

.scope-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 0 28px;
  margin: 0;
  padding: 0;
}

.scope-item {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid #e2ddd3;
}

.scope-key {
  flex: 0 0 96px;
  font-weight: 700;
  color: #111111;
}

.scope-value {
  flex: 1 1 auto;
  min-width: 0;
  font-size: 15px;
  line-height: 1.8;
  color: #3d3d3d;
}

.exclude-list {
  margin: 0 0 22px;
  padding: 0;
}

.exclude-item {
  position: relative;
  padding-left: 18px;
  margin-bottom: 10px;
  font-size: 15px;
  line-height: 1.8;
  color: #3d3d3d;
}

.exclude-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 12px;
  width: 10px;
  height: 2px;
  background-color: #b23a2e;
}

.boundary-figure {
  margin: 0;
}

.feedback-steps {
  margin: 0;
  padding: 0;
}

.feedback-step {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 14px 0;
  border-bottom: 1px solid #d5d0c6;
}

.feedback-step .step-index {
  background-color: #b23a2e;
  color: #ffffff;
}

.feedback-step .step-body {
  font-size: 15px;
  line-height: 1.8;
  color: #3d3d3d;
}

.feedback-step .step-body a {
  color: #1f3a6e;
  border-bottom: 1px solid #1f3a6e;
}

.feedback-step .step-body a:hover,
.feedback-step .step-body a:focus {
  color: #b23a2e;
  border-bottom-color: #b23a2e;
  text-decoration: none;
}

.record-list {
  margin: 0;
  padding: 0;
  border-left: 2px solid #d5d0c6;
}

.record-item {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px 14px;
  padding: 14px 0 14px 20px;
  border-bottom: 1px solid #e2ddd3;
}

.record-item::before {
  content: "";
  position: absolute;
  left: -7px;
  top: 22px;
  width: 10px;
  height: 10px;
  background-color: #111111;
  border: 2px solid #f5f2ec;
}

.record-time {
  flex: 0 0 auto;
  font-size: 14px;
  font-weight: 700;
  color: #111111;
}

.record-tag {
  flex: 0 0 auto;
  padding: 1px 8px;
  font-size: 13px;
  line-height: 1.6;
  border: 1px solid currentColor;
}

.record-tag-scope {
  color: #b23a2e;
}

.record-tag-channel {
  color: #1f3a6e;
}

.record-tag-field {
  color: #c9971f;
}

.record-tag-special {
  color: #6b6b6b;
}

.record-text {
  flex: 1 1 240px;
  min-width: 0;
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: #3d3d3d;
}

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

.error-main {
  max-width: 1120px;
  margin: 0 auto;
  padding: 56px 24px 72px;
}

.error-panel {
  max-width: 720px;
  padding: 32px 28px;
  background-color: #ffffff;
  border: 2px solid #111111;
  border-top: 6px solid #b23a2e;
  border-radius: 4px;
}

.error-code {
  margin: 0 0 12px;
  font-size: 14px;
  font-weight: 700;
  color: #b23a2e;
}

.error-title {
  margin: 0 0 14px;
  font-size: 34px;
  line-height: 1.3;
}

.error-text {
  margin: 0 0 20px;
  color: #3d3d3d;
}

.error-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 0 0 18px;
}

.error-home,
.error-link {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 8px 16px;
  font-size: 15px;
  font-weight: 700;
  border: 2px solid #111111;
  border-radius: 4px;
}

.error-home {
  background-color: #111111;
  color: #ffffff;
}

.error-home:hover,
.error-home:focus {
  background-color: #b23a2e;
  border-color: #b23a2e;
  color: #ffffff;
  text-decoration: none;
}

.error-link {
  background-color: #ffffff;
  color: #111111;
}

.error-link:hover,
.error-link:focus {
  border-color: #1f3a6e;
  color: #1f3a6e;
  text-decoration: none;
}

.error-note {
  margin: 0;
  font-size: 14px;
  color: #6b6b6b;
}

/* --------------------------------------------------------------------------
   responsive · 900px
   -------------------------------------------------------------------------- */

@media (max-width: 900px) {
  .header-inner {
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 12px;
    padding: 12px 20px;
  }

  .nav-toggle {
    display: inline-flex;
    order: 2;
  }

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

  .nav-list {
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    width: 100%;
    margin-top: 8px;
    border-top: 2px solid #111111;
  }

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

  .nav-item {
    border-bottom: 1px solid #e2ddd3;
  }

  .nav-link {
    display: block;
    min-height: 44px;
    padding: 12px 4px;
    border-bottom: none;
  }

  .nav-link.is-current {
    border-bottom: none;
    border-left: 4px solid #1f3a6e;
    padding-left: 10px;
  }

  .home-main,
  .inner-main {
    padding-left: 20px;
    padding-right: 20px;
  }

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

  .hero-paths {
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  }

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

  .channel-index,
  .guide-aside {
    order: 0;
  }

  .channel-body,
  .guide-body {
    order: 1;
  }

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

  .footer-inner {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 28px;
    padding: 40px 20px 28px;
  }

  .footer-copy {
    padding: 18px 20px 24px;
  }
}

/* --------------------------------------------------------------------------
   responsive · 600px
   -------------------------------------------------------------------------- */

@media (max-width: 600px) {
  body {
    font-size: 16px;
  }

  h1,
  .hero-title,
  .page-title,
  .error-title {
    font-size: 26px;
    line-height: 1.35;
  }

  h2,
  .section-title {
    font-size: 20px;
    line-height: 1.45;
  }

  .header-inner {
    padding: 10px 16px;
  }

  .brand-name {
    font-size: 18px;
  }

  .home-main,
  .inner-main {
    padding-left: 16px;
    padding-right: 16px;
  }

  .hero-section {
    padding: 28px 0 26px;
  }

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

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

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

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

  .catalog-entries .entry-row {
    grid-template-columns: minmax(0, 1fr);
    gap: 4px;
    padding: 14px 0;
  }

  .catalog-entries .entry-field,
  .catalog-entries .entry-status {
    justify-self: start;
  }

  .scope-item {
    flex-direction: column;
    gap: 4px;
  }

  .scope-key {
    flex: 0 0 auto;
  }

  .record-item {
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
    padding-left: 18px;
  }

  .footer-inner {
    grid-template-columns: minmax(0, 1fr);
    gap: 24px;
    padding: 32px 16px 24px;
  }

  .footer-copy {
    padding: 16px 16px 22px;
  }

  .error-main {
    padding: 32px 16px 48px;
  }

  .error-panel {
    padding: 24px 18px;
  }

  .error-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .error-home,
  .error-link {
    justify-content: center;
  }
}