/* ==========================================================================
   秋霞影音 · 全站样式
   分组：base / layout / components / pages / responsive
   ========================================================================== */

/* --------------------------------------------------------------------------
   base · 基础重置与全局排版
   -------------------------------------------------------------------------- */

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

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

body {
  margin: 0;
  background-color: #f7f9f9;
  color: #1f2a2e;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

h1,
h2,
h3,
h4 {
  margin: 0;
  font-weight: 600;
  line-height: 1.35;
  color: #1f2a2e;
}

p {
  margin: 0;
}

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

a {
  color: #17a08a;
  text-decoration: underline;
  text-underline-offset: 3px;
}

a:hover {
  color: #0f7d6b;
}

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

button {
  font: inherit;
  color: inherit;
}

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

strong {
  font-weight: 600;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 60;
  padding: 10px 16px;
  background: #ffffff;
  border: 1px solid #d8e2e1;
  border-radius: 6px;
}

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

/* --------------------------------------------------------------------------
   layout · 全站骨架：页头 / 主导航 / 主内容 / 页脚
   -------------------------------------------------------------------------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background-color: #ffffff;
  border-bottom: 1px solid #d8e2e1;
}

.header-inner {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
  min-height: 64px;
  display: flex;
  align-items: center;
  gap: 24px;
}

.brand {
  flex: 0 0 auto;
  font-size: 19px;
  font-weight: 600;
  color: #1f2a2e;
  text-decoration: none;
  padding: 8px 0;
}

.brand:hover {
  color: #17a08a;
}

.site-nav {
  flex: 1 1 auto;
  display: flex;
  justify-content: flex-end;
}

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

.nav-link {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 12px;
  font-size: 15px;
  color: #5c6b70;
  text-decoration: none;
  border-bottom: 2px solid transparent;
}

.nav-link:hover {
  color: #17a08a;
}

.nav-link.is-current {
  color: #1f2a2e;
  font-weight: 600;
  border-bottom-color: #17a08a;
}

.nav-toggle {
  display: none;
  flex: 0 0 auto;
  width: 44px;
  height: 44px;
  padding: 10px;
  background: #ffffff;
  border: 1px solid #d8e2e1;
  border-radius: 6px;
  cursor: pointer;
  flex-direction: column;
  justify-content: space-between;
}

.nav-toggle-bar {
  display: block;
  width: 100%;
  height: 2px;
  background-color: #1f2a2e;
  border-radius: 2px;
}

.site-main {
  display: block;
}

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

.site-footer {
  background-color: #ffffff;
  border-top: 1px solid #d8e2e1;
  margin-top: 24px;
}

.footer-top {
  max-width: 1120px;
  margin: 0 auto;
  padding: 40px 24px 28px;
  display: grid;
  grid-template-columns: minmax(240px, 1fr) minmax(320px, 1.4fr);
  gap: 32px;
}

.footer-brand-name {
  font-size: 17px;
  font-weight: 600;
  color: #1f2a2e;
}

.footer-brand-desc {
  margin-top: 10px;
  font-size: 14px;
  line-height: 1.7;
  color: #5c6b70;
  max-width: 34em;
}

.footer-nav {
  display: grid;
  grid-template-columns: repeat(2, minmax(140px, 1fr));
  gap: 24px;
}

.footer-group-title {
  font-size: 14px;
  font-weight: 600;
  color: #1f2a2e;
  margin-bottom: 10px;
}

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

.footer-list a {
  display: inline-block;
  padding: 4px 0;
  font-size: 14px;
  color: #5c6b70;
  text-decoration: none;
}

.footer-list a:hover {
  color: #17a08a;
  text-decoration: underline;
}

.footer-bottom {
  max-width: 1120px;
  margin: 0 auto;
  padding: 18px 24px 28px;
  border-top: 1px solid #d8e2e1;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 24px;
}

.footer-note,
.footer-copy {
  font-size: 13px;
  color: #5c6b70;
}

.footer-copy {
  margin-left: auto;
}

.back-to-top {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 14px;
  font-size: 14px;
  color: #17a08a;
  text-decoration: none;
  border: 1px solid #d8e2e1;
  border-radius: 6px;
}

.back-to-top:hover {
  border-color: #17a08a;
}

/* 内页通用内容宽度与标题区 */

.page-layout {
  display: grid;
}

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

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: #5c6b70;
  margin-bottom: 16px;
}

.breadcrumb a {
  color: #5c6b70;
  text-decoration: none;
}

.breadcrumb a:hover {
  color: #17a08a;
  text-decoration: underline;
}

.breadcrumb-sep {
  color: #d8e2e1;
}

.breadcrumb-current {
  color: #1f2a2e;
}

.page-header {
  padding-bottom: 20px;
  margin-bottom: 28px;
  border-bottom: 1px solid #d8e2e1;
}

.page-title {
  font-size: 30px;
  font-weight: 600;
  color: #1f2a2e;
}

.page-description {
  margin-top: 12px;
  font-size: 16px;
  line-height: 1.75;
  color: #5c6b70;
  max-width: 46em;
}

/* --------------------------------------------------------------------------
   components · 通用区块与元素
   -------------------------------------------------------------------------- */

.section {
  margin-bottom: 44px;
}

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

.section-title {
  font-size: 22px;
  font-weight: 600;
  color: #1f2a2e;
}

.section-note,
.section-desc {
  margin-top: 10px;
  font-size: 15px;
  line-height: 1.75;
  color: #5c6b70;
  max-width: 46em;
}

.section-lead {
  margin-bottom: 20px;
  font-size: 16px;
  line-height: 1.75;
  color: #5c6b70;
  max-width: 46em;
}

.section-text {
  font-size: 16px;
  line-height: 1.75;
  color: #1f2a2e;
  max-width: 46em;
}

.section-text + .section-text {
  margin-top: 12px;
}

.section-foot {
  margin-top: 16px;
  font-size: 15px;
}

.section-note a,
.section-foot a,
.section-links a {
  color: #17a08a;
}

.section-links {
  margin-top: 18px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 20px;
  font-size: 15px;
}

.text-link {
  color: #17a08a;
  font-weight: 500;
}

.inline-link {
  color: #17a08a;
}

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

.action-link {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 18px;
  font-size: 15px;
  color: #17a08a;
  text-decoration: none;
  border: 1px solid #d8e2e1;
  border-radius: 6px;
  background-color: #ffffff;
}

.action-link:hover {
  border-color: #17a08a;
  background-color: #f1f7f6;
}

/* 图片容器与图注 */

.hero-media,
.fields-media,
.channel-figure,
.section-media,
.section-figure,
.figure {
  margin: 0;
  background-color: #ffffff;
  border: 1px solid #d8e2e1;
  border-radius: 8px;
  overflow: hidden;
}

.hero-media img,
.fields-media img,
.channel-figure img,
.section-media img,
.section-figure img,
.figure img {
  width: 100%;
  height: auto;
  object-fit: cover;
  background-color: #eef3f2;
}

.hero-media figcaption,
.fields-media figcaption,
.channel-figure figcaption,
.section-media figcaption,
.section-figure figcaption,
.figure-caption {
  padding: 12px 16px;
  font-size: 13px;
  line-height: 1.6;
  color: #5c6b70;
  border-top: 1px solid #d8e2e1;
}

/* 细线表格通用 */

.fields-table-wrap,
.table-wrap,
.map-table-wrap {
  width: 100%;
  overflow-x: auto;
  background-color: #ffffff;
  border: 1px solid #d8e2e1;
  border-radius: 8px;
}

.fields-table,
.field-table,
.map-table {
  min-width: 480px;
  font-size: 14px;
  line-height: 1.6;
}

.fields-caption,
.field-table-caption,
.map-caption {
  caption-side: top;
  text-align: left;
  padding: 14px 16px;
  font-size: 13px;
  color: #5c6b70;
  border-bottom: 1px solid #d8e2e1;
}

.fields-table th,
.fields-table td,
.field-table th,
.field-table td,
.map-table th,
.map-table td {
  padding: 12px 16px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid #d8e2e1;
}

.fields-table thead th,
.field-table thead th,
.map-table thead th {
  font-weight: 600;
  color: #1f2a2e;
  background-color: #f1f7f6;
}

.fields-table tbody th,
.field-table tbody th,
.map-table tbody th {
  font-weight: 600;
  color: #1f2a2e;
  white-space: nowrap;
}

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

/* 编号徽标：首页路径 / 专题顺序 / 查阅步骤，按父级限定作用域 */

.path-item .path-index,
.order-item .order-index,
.step-name .step-index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  flex: 0 0 30px;
  font-size: 14px;
  font-weight: 600;
  color: #17a08a;
  background-color: #f1f7f6;
  border: 1px solid #d8e2e1;
  border-radius: 6px;
}

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

.home-main {
  display: block;
}

.hero {
  background-color: #ffffff;
  border-bottom: 1px solid #d8e2e1;
}

.hero-inner {
  max-width: 1120px;
  margin: 0 auto;
  padding: 48px 24px;
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
  gap: 40px;
  align-items: center;
}

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

.hero-eyebrow {
  font-size: 14px;
  font-weight: 600;
  color: #17a08a;
  margin-bottom: 12px;
}

.hero-title {
  font-size: 34px;
  font-weight: 600;
  color: #1f2a2e;
}

.hero-lead {
  margin-top: 16px;
  font-size: 17px;
  line-height: 1.8;
  color: #5c6b70;
  max-width: 34em;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 22px;
  font-size: 15px;
  font-weight: 500;
  text-decoration: none;
  border-radius: 6px;
  border: 1px solid transparent;
}

.btn-primary {
  color: #ffffff;
  background-color: #17a08a;
  border-color: #17a08a;
}

.btn-primary:hover {
  color: #ffffff;
  background-color: #0f7d6b;
  border-color: #0f7d6b;
}

.btn-ghost {
  color: #17a08a;
  background-color: #ffffff;
  border-color: #d8e2e1;
}

.btn-ghost:hover {
  border-color: #17a08a;
  background-color: #f1f7f6;
}

.hero-media img {
  aspect-ratio: 4 / 3;
}

.home-main > .section {
  max-width: 1120px;
  margin-left: auto;
  margin-right: auto;
  padding: 0 24px;
}

.home-main > .section:first-of-type {
  margin-top: 44px;
}

/* 首页 · 站点定位三栏说明 */

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

.intro-col {
  padding: 20px;
  background-color: #ffffff;
  border: 1px solid #d8e2e1;
  border-radius: 8px;
}

.intro-subtitle {
  font-size: 17px;
  font-weight: 600;
  color: #1f2a2e;
  margin-bottom: 10px;
}

.intro-col p {
  font-size: 15px;
  line-height: 1.75;
  color: #5c6b70;
}

/* 首页 · 题材频道入口行 */

.channel-list {
  border-top: 1px solid #d8e2e1;
}

.channel-row {
  display: grid;
  grid-template-columns: minmax(140px, 0.9fr) minmax(0, 2.4fr) minmax(96px, 0.6fr);
  gap: 16px 24px;
  align-items: center;
  padding: 16px 12px;
  border-bottom: 1px solid #d8e2e1;
  transition: background-color 0.18s ease;
}

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

.channel-name h3 {
  font-size: 17px;
  font-weight: 600;
  color: #1f2a2e;
}

.channel-desc p {
  font-size: 15px;
  line-height: 1.7;
  color: #5c6b70;
  max-width: 52em;
}

.channel-link {
  text-align: right;
}

.channel-link a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  font-size: 15px;
  color: #17a08a;
  text-decoration: none;
}

.channel-row:hover .channel-link a {
  text-decoration: underline;
}

/* 首页 · 专题片单速览 */

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

.topic-card {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 20px;
  background-color: #ffffff;
  border: 1px solid #d8e2e1;
  border-radius: 8px;
  transition: background-color 0.18s ease, border-color 0.18s ease;
}

.topic-card:hover {
  background-color: #f1f7f6;
  border-color: #17a08a;
}

.topic-name {
  font-size: 17px;
  font-weight: 600;
  color: #1f2a2e;
}

.topic-desc {
  margin-top: 8px;
  font-size: 15px;
  line-height: 1.7;
  color: #5c6b70;
}

.topic-meta {
  padding-top: 12px;
  border-top: 1px solid #d8e2e1;
  display: grid;
  gap: 6px;
}

.topic-meta p {
  font-size: 14px;
  line-height: 1.6;
  color: #5c6b70;
}

.meta-label {
  display: inline-block;
  min-width: 5em;
  font-weight: 600;
  color: #1f2a2e;
}

/* 首页 · 条目字段摘要 */

.fields-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr);
  gap: 24px;
  align-items: start;
}

.fields-media img {
  aspect-ratio: 3 / 2;
}

.fields-foot {
  margin-top: 20px;
}

.fields-foot p {
  font-size: 15px;
  line-height: 1.75;
  color: #5c6b70;
  max-width: 46em;
}

/* 首页 · 查阅路径要点 */

.path-list {
  border-top: 1px solid #d8e2e1;
}

.path-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 16px 4px;
  border-bottom: 1px solid #d8e2e1;
}

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

.path-name {
  font-size: 16px;
  font-weight: 600;
  color: #1f2a2e;
}

.path-body p {
  margin-top: 6px;
  font-size: 15px;
  line-height: 1.7;
  color: #5c6b70;
  max-width: 52em;
}

/* 首页 · 反馈入口说明 */

.feedback-body {
  padding: 20px;
  background-color: #ffffff;
  border: 1px solid #d8e2e1;
  border-radius: 8px;
}

.feedback-body p {
  font-size: 15px;
  line-height: 1.75;
  color: #5c6b70;
  max-width: 46em;
}

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

.page-layout.layout-shell.sidebar-left {
  grid-template-columns: minmax(220px, 260px) minmax(0, 1fr);
  gap: 32px;
  align-items: start;
}

.channel-sidebar {
  position: sticky;
  top: 88px;
  padding: 20px;
  background-color: #ffffff;
  border: 1px solid #d8e2e1;
  border-radius: 8px;
}

.sidebar-title {
  font-size: 16px;
  font-weight: 600;
  color: #1f2a2e;
}

.sidebar-desc {
  margin-top: 8px;
  font-size: 14px;
  line-height: 1.65;
  color: #5c6b70;
}

.channel-nav {
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid #d8e2e1;
}

.channel-nav-list li + li {
  margin-top: 4px;
}

.channel-nav-list a {
  display: flex;
  align-items: center;
  min-height: 44px;
  padding: 0 10px;
  font-size: 15px;
  color: #5c6b70;
  text-decoration: none;
  border-radius: 6px;
}

.channel-nav-list a:hover {
  color: #17a08a;
  background-color: #f1f7f6;
}

.channel-overview .channel-figure {
  margin-bottom: 24px;
}

.channel-figure img {
  aspect-ratio: 16 / 7;
}

.channel-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.channel-card {
  padding: 18px;
  background-color: #ffffff;
  border: 1px solid #d8e2e1;
  border-radius: 8px;
}

.channel-card-title {
  font-size: 16px;
  font-weight: 600;
  color: #1f2a2e;
}

.channel-card-desc {
  margin-top: 8px;
  font-size: 14px;
  line-height: 1.7;
  color: #5c6b70;
}

.channel-block {
  padding: 20px;
  background-color: #ffffff;
  border: 1px solid #d8e2e1;
  border-radius: 8px;
}

.channel-block + .channel-block {
  margin-top: 18px;
}

.channel-block-title {
  font-size: 18px;
  font-weight: 600;
  color: #1f2a2e;
}

.channel-block-desc {
  margin-top: 10px;
  font-size: 15px;
  line-height: 1.75;
  color: #5c6b70;
  max-width: 46em;
}

.channel-feature-list {
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid #d8e2e1;
}

.channel-feature-list li {
  position: relative;
  padding-left: 18px;
  font-size: 15px;
  line-height: 1.7;
  color: #1f2a2e;
}

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

.channel-feature-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 12px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: #17a08a;
}

.choose-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.choose-item {
  padding: 18px;
  font-size: 15px;
  line-height: 1.75;
  color: #5c6b70;
  background-color: #ffffff;
  border: 1px solid #d8e2e1;
  border-radius: 8px;
}

.choose-item strong {
  display: block;
  margin-bottom: 6px;
  color: #1f2a2e;
}

.channel-link .section-text {
  margin-bottom: 0;
}

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

.section-zhuanti-structure .section-media {
  margin-bottom: 24px;
}

.section-media img {
  aspect-ratio: 16 / 7;
}

.structure-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px 24px;
}

.structure-item {
  display: flex;
  gap: 12px;
  padding: 14px 16px;
  background-color: #ffffff;
  border: 1px solid #d8e2e1;
  border-radius: 8px;
  font-size: 15px;
  line-height: 1.7;
}

.structure-name {
  flex: 0 0 5.5em;
  font-weight: 600;
  color: #1f2a2e;
}

.structure-text {
  min-width: 0;
  color: #5c6b70;
}

.section-zhuanti-list .topic-card {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) minmax(220px, 1fr);
  gap: 24px;
  align-items: start;
}

.section-zhuanti-list .topic-card + .topic-card {
  margin-top: 18px;
}

.topic-card-main {
  min-width: 0;
}

.topic-card-side {
  min-width: 0;
  padding-left: 24px;
  border-left: 1px solid #d8e2e1;
  display: grid;
  gap: 10px;
}

.topic-scope,
.topic-structure {
  font-size: 14px;
  line-height: 1.7;
  color: #5c6b70;
}

.map-table tbody th {
  white-space: normal;
}

/* --------------------------------------------------------------------------
   pages · 条目目录页
   -------------------------------------------------------------------------- */

.section-field-table .figure-table {
  margin-bottom: 24px;
}

.figure-table img {
  aspect-ratio: 16 / 6;
}

.section-field-rule .rule-item {
  padding: 18px 20px;
  background-color: #ffffff;
  border: 1px solid #d8e2e1;
  border-radius: 8px;
}

.section-field-rule .rule-item + .rule-item {
  margin-top: 16px;
}

.rule-title {
  font-size: 16px;
  font-weight: 600;
  color: #1f2a2e;
}

.rule-text {
  margin-top: 8px;
  font-size: 15px;
  line-height: 1.75;
  color: #5c6b70;
  max-width: 46em;
}

.rule-sample {
  margin-top: 10px;
  padding: 10px 14px;
  font-size: 14px;
  line-height: 1.65;
  color: #1f2a2e;
  background-color: #f1f7f6;
  border-left: 3px solid #17a08a;
  border-radius: 0 6px 6px 0;
}

.combo-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.combo-item {
  padding: 18px;
  background-color: #ffffff;
  border: 1px solid #d8e2e1;
  border-radius: 8px;
}

.combo-title {
  font-size: 16px;
  font-weight: 600;
  color: #1f2a2e;
}

.combo-text {
  margin-top: 8px;
  font-size: 15px;
  line-height: 1.75;
  color: #5c6b70;
}

.section-field-missing .section-links {
  margin-top: 16px;
}

.related-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 18px;
  padding: 16px 20px;
  background-color: #ffffff;
  border: 1px solid #d8e2e1;
  border-radius: 8px;
}

.related-links-label {
  font-size: 14px;
  font-weight: 600;
  color: #1f2a2e;
}

.related-links-item {
  font-size: 15px;
  color: #17a08a;
}

/* --------------------------------------------------------------------------
   pages · 查阅路径页
   -------------------------------------------------------------------------- */

.section-steps .section-figure {
  margin-bottom: 24px;
}

.section-figure img {
  aspect-ratio: 16 / 6;
}

.step-list {
  display: grid;
  gap: 18px;
}

.step-block {
  padding: 20px;
  background-color: #ffffff;
  border: 1px solid #d8e2e1;
  border-radius: 8px;
}

.step-name {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 17px;
  font-weight: 600;
  color: #1f2a2e;
}

.step-meta {
  margin: 14px 0 0;
  padding-top: 14px;
  border-top: 1px solid #d8e2e1;
  display: grid;
  grid-template-columns: minmax(80px, 110px) minmax(0, 1fr);
  gap: 8px 16px;
}

.step-meta-term {
  font-size: 14px;
  font-weight: 600;
  color: #17a08a;
}

.step-meta-desc {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: #5c6b70;
}

.stop-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.stop-item {
  padding: 18px;
  background-color: #ffffff;
  border: 1px solid #d8e2e1;
  border-radius: 8px;
}

.stop-name {
  font-size: 16px;
  font-weight: 600;
  color: #1f2a2e;
}

.stop-desc {
  margin-top: 8px;
  font-size: 15px;
  line-height: 1.75;
  color: #5c6b70;
}

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

.section-scope .check-list {
  margin-top: 16px;
}

.check-list li {
  position: relative;
  padding-left: 22px;
  font-size: 15px;
  line-height: 1.75;
  color: #1f2a2e;
}

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

.check-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 10px;
  height: 10px;
  border: 2px solid #17a08a;
  border-radius: 3px;
}

.section-scope .section-media {
  margin-top: 24px;
}

.section-boundary .section-text {
  margin-bottom: 20px;
}

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

.compare-col {
  padding: 20px;
  background-color: #ffffff;
  border: 1px solid #d8e2e1;
  border-radius: 8px;
}

.compare-col-in {
  border-top: 3px solid #17a08a;
}

.compare-col-out {
  border-top: 3px solid #d8e2e1;
}

.compare-title {
  font-size: 16px;
  font-weight: 600;
  color: #1f2a2e;
}

.compare-list {
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid #d8e2e1;
}

.compare-list li {
  position: relative;
  padding-left: 18px;
  font-size: 15px;
  line-height: 1.7;
  color: #5c6b70;
}

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

.compare-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 11px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: #d8e2e1;
}

.compare-col-in .compare-list li::before {
  background-color: #17a08a;
}

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

.section-feedback .step-item {
  padding: 16px 18px;
  background-color: #ffffff;
  border: 1px solid #d8e2e1;
  border-radius: 8px;
}

.section-feedback .step-title {
  font-size: 16px;
  font-weight: 600;
  color: #1f2a2e;
}

.section-feedback .step-text {
  margin-top: 8px;
  font-size: 15px;
  line-height: 1.75;
  color: #5c6b70;
}

.section-after .note-list {
  margin-top: 16px;
}

.note-list li {
  position: relative;
  padding-left: 18px;
  font-size: 15px;
  line-height: 1.75;
  color: #5c6b70;
}

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

.note-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 11px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: #17a08a;
}

/* FAQ 折叠 */

.faq-list {
  display: grid;
  gap: 12px;
}

.faq-item {
  background-color: #ffffff;
  border: 1px solid #d8e2e1;
  border-radius: 8px;
  padding: 0 18px;
}

.faq-question {
  position: relative;
  padding: 16px 32px 16px 0;
  font-size: 16px;
  font-weight: 600;
  color: #1f2a2e;
  cursor: pointer;
  list-style: none;
}

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

.faq-question::after {
  content: "+";
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  font-size: 20px;
  line-height: 1;
  color: #17a08a;
}

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

.faq-answer {
  padding: 14px 0 18px;
  font-size: 15px;
  line-height: 1.75;
  color: #5c6b70;
  border-top: 1px solid #d8e2e1;
  max-width: 46em;
}

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

.error-main {
  max-width: 1120px;
  margin: 0 auto;
  padding: 64px 24px 80px;
}

.error-panel {
  max-width: 640px;
  padding: 32px;
  background-color: #ffffff;
  border: 1px solid #d8e2e1;
  border-radius: 8px;
}

.error-code {
  font-size: 14px;
  font-weight: 600;
  color: #17a08a;
}

.error-title {
  margin-top: 10px;
  font-size: 28px;
  font-weight: 600;
  color: #1f2a2e;
}

.error-desc {
  margin-top: 14px;
  font-size: 16px;
  line-height: 1.75;
  color: #5c6b70;
}

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

.error-action-link {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 16px;
  font-size: 15px;
  text-align: center;
  color: #17a08a;
  text-decoration: none;
  background-color: #ffffff;
  border: 1px solid #d8e2e1;
  border-radius: 6px;
}

.error-action-link:hover {
  border-color: #17a08a;
  background-color: #f1f7f6;
}

.error-action-primary {
  color: #ffffff;
  background-color: #17a08a;
  border-color: #17a08a;
}

.error-action-primary:hover {
  color: #ffffff;
  background-color: #0f7d6b;
  border-color: #0f7d6b;
}

.error-note {
  margin-top: 20px;
  font-size: 14px;
  line-height: 1.7;
  color: #5c6b70;
}

/* --------------------------------------------------------------------------
   responsive · 平板与手机
   -------------------------------------------------------------------------- */

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

  .hero-title {
    font-size: 30px;
  }

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

  .channel-grid,
  .choose-list,
  .combo-list,
  .stop-list,
  .intro-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

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

@media (max-width: 768px) {
  .header-inner {
    flex-wrap: wrap;
    gap: 8px 16px;
    padding: 8px 16px;
    min-height: 56px;
  }

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

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

  .nav-list {
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 4px 0 12px;
  }

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

  .nav-link {
    min-height: 48px;
    padding: 0 8px;
    border-bottom: 1px solid #d8e2e1;
  }

  .nav-link.is-current {
    border-bottom-color: #17a08a;
  }

  .inner-main {
    padding: 16px 16px 40px;
  }

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

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

  .section {
    margin-bottom: 32px;
  }

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

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

  .hero-lead {
    font-size: 16px;
  }

  .home-main > .section {
    padding: 0 16px;
  }

  .home-main > .section:first-of-type {
    margin-top: 32px;
  }

  .intro-grid,
  .topic-list,
  .channel-grid,
  .choose-list,
  .combo-list,
  .stop-list,
  .structure-list,
  .compare-columns {
    grid-template-columns: minmax(0, 1fr);
  }

  .channel-row {
    grid-template-columns: minmax(0, 1fr);
    gap: 8px;
    padding: 14px 4px;
  }

  .channel-link {
    text-align: left;
  }

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

  .channel-sidebar {
    position: static;
    padding: 16px;
  }

  .section-zhuanti-list .topic-card {
    grid-template-columns: minmax(0, 1fr);
    gap: 16px;
  }

  .topic-card-side {
    padding-left: 0;
    padding-top: 14px;
    border-left: 0;
    border-top: 1px solid #d8e2e1;
  }

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

  .step-meta-term {
    margin-top: 6px;
  }

  .error-main {
    padding: 40px 16px 56px;
  }

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

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

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

  .footer-top {
    padding: 28px 16px 20px;
  }

  .footer-nav {
    grid-template-columns: minmax(0, 1fr);
    gap: 18px;
  }

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

  .footer-copy {
    margin-left: 0;
  }
}

@media (max-width: 420px) {
  .hero-title {
    font-size: 22px;
  }

  .page-title {
    font-size: 22px;
  }

  .fields-table,
  .field-table,
  .map-table {
    min-width: 420px;
  }

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

  .structure-name {
    flex: 0 0 auto;
  }
}