/* =========================================================
   国产吃瓜在线 · 全站样式表
   会议资料风：议程网格 + 主题色标 + 稳重专业
   ========================================================= */

/* =========================================================
   1. Base —— 变量、重置、全局基础
   ========================================================= */
:root {
  --color-primary: #1B3A5C;
  --color-primary-light: #2A5480;
  --color-primary-dark: #142C47;
  --color-accent: #E8652D;
  --color-accent-light: #F07A45;
  --color-bg: #FFFFFF;
  --color-bg-light: #F4F6F9;
  --color-bg-deep: #E9EDF2;
  --color-text: #2C3E50;
  --color-text-light: #5A6B7B;
  --color-text-lighter: #8595A3;
  --color-border: #DCE2E8;
  --color-border-light: #E8EDF2;
  --color-white: #FFFFFF;

  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;

  --header-height: 68px;
  --container-width: 1200px;
  --content-width: 1240px;
  --sidebar-width: 240px;
  --gap-base: 24px;
  --gap-lg: 40px;
  --gap-sm: 16px;

  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 8px;

  --shadow-sm: 0 1px 3px rgba(27, 58, 92, 0.08);
  --shadow-md: 0 4px 12px rgba(27, 58, 92, 0.08);
  --shadow-lg: 0 8px 24px rgba(27, 58, 92, 0.1);

  --transition-base: 0.2s ease;
}

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-text);
  background-color: var(--color-bg);
}

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

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

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

ul,
ol {
  list-style: none;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-weight: 600;
  line-height: 1.4;
  color: var(--color-primary-dark);
}

h1 {
  font-size: 30px;
}

h2 {
  font-size: 23px;
}

h3 {
  font-size: 18px;
}

p {
  margin-bottom: 12px;
}

strong {
  font-weight: 600;
  color: var(--color-primary-dark);
}

/* =========================================================
   2. Layout —— 全站骨架容器
   ========================================================= */

/* 全站统一容器 */
.container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding-left: 24px;
  padding-right: 24px;
}

/* 页头 */
.site-header {
  background-color: var(--color-white);
  border-bottom: 1px solid var(--color-border-light);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
  height: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

/* Logo */
.logo {
  display: inline-flex;
  align-items: center;
  flex-shrink: 0;
}

.logo-text {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: 0.5px;
  white-space: nowrap;
}

.logo-text::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  background-color: var(--color-accent);
  margin-right: 8px;
  border-radius: 2px;
  vertical-align: middle;
}

/* 主导航 */
.main-nav {
  flex: 1;
  display: flex;
  justify-content: flex-end;
}

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

.nav-list li a {
  display: block;
  padding: 8px 14px;
  font-size: 15px;
  color: var(--color-text);
  border-radius: var(--radius-sm);
  transition: background-color var(--transition-base), color var(--transition-base);
}

.nav-list li a:hover {
  color: var(--color-primary);
  background-color: var(--color-bg-light);
}

.nav-list li a.is-current {
  color: var(--color-primary);
  font-weight: 600;
  background-color: var(--color-bg-light);
}

/* 汉堡按钮 */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 10px;
  background: none;
  border: none;
  cursor: pointer;
  border-radius: var(--radius-sm);
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background-color: var(--color-primary);
  border-radius: 1px;
  transition: transform var(--transition-base), opacity var(--transition-base);
}

/* =========================================================
   3. Components —— 通用组件
   ========================================================= */

/* --- 按钮 --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 11px 28px;
  font-size: 15px;
  font-weight: 600;
  border-radius: var(--radius-md);
  cursor: pointer;
  border: 1px solid transparent;
  transition: background-color var(--transition-base), color var(--transition-base),
    border-color var(--transition-base), box-shadow var(--transition-base);
  min-height: 44px;
}

.btn-primary {
  background-color: var(--color-primary);
  color: var(--color-white);
}

.btn-primary:hover {
  background-color: var(--color-primary-light);
  color: var(--color-white);
  box-shadow: var(--shadow-sm);
}

.btn-outline {
  background-color: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.btn-outline:hover {
  background-color: var(--color-primary);
  color: var(--color-white);
}

.btn-home {
  background-color: var(--color-primary);
  color: var(--color-white);
  padding: 12px 36px;
}

.btn-home:hover {
  background-color: var(--color-primary-light);
  color: var(--color-white);
}

/* --- 面包屑 --- */
.breadcrumb {
  background-color: var(--color-bg-light);
  border-bottom: 1px solid var(--color-border-light);
}

.breadcrumb-inner {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 12px 24px;
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--color-text-light);
}

.breadcrumb-inner a {
  color: var(--color-text-light);
}

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

.breadcrumb-sep {
  color: var(--color-text-lighter);
  font-size: 13px;
}

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

.breadcrumb ol,
.breadcrumb-list {
  display: flex;
  align-items: center;
  gap: 8px;
}

.breadcrumb li {
  display: flex;
  align-items: center;
  gap: 8px;
}

.breadcrumb-nav {
  background-color: var(--color-bg-light);
  border-bottom: 1px solid var(--color-border-light);
}

.breadcrumb-nav .breadcrumb-list {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 12px 24px;
  font-size: 14px;
  color: var(--color-text-light);
}

/* --- 页头标题区 --- */
.page-header {
  background-color: var(--color-bg-light);
  border-bottom: 1px solid var(--color-border-light);
  padding: 32px 0;
}

.page-title {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
  font-size: 30px;
  font-weight: 700;
  color: var(--color-primary);
}

.page-description {
  max-width: var(--container-width);
  margin: 8px auto 0;
  padding: 0 24px;
  font-size: 16px;
  color: var(--color-text-light);
}

/* --- 内页布局 --- */
.page-layout {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 32px 24px 56px;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 32px;
}

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

/* 侧栏 */
.sidebar,
.page-sidebar {
  min-width: 0;
}

.sidebar-inner,
.sidebar-nav {
  position: sticky;
  top: calc(var(--header-height) + 24px);
}

.sidebar-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-primary);
  padding: 0 0 12px;
  margin-bottom: 12px;
  border-bottom: 2px solid var(--color-primary);
}

.sidebar-nav ul,
.sidebar-list,
.sidebar-nav ul li {
  display: block;
}

.sidebar-nav ul li a,
.sidebar-list li a {
  display: block;
  padding: 9px 12px;
  font-size: 14px;
  color: var(--color-text);
  border-left: 3px solid transparent;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  transition: background-color var(--transition-base), color var(--transition-base),
    border-color var(--transition-base);
}

.sidebar-nav ul li a:hover,
.sidebar-list li a:hover {
  color: var(--color-primary);
  background-color: var(--color-bg-light);
  border-left-color: var(--color-accent);
}

/* 主内容 */
.inner-main {
  min-width: 0;
}

.site-main.inner-main {
  max-width: 100%;
}

/* 正文区块 */
.content-section,
.content-block {
  margin-bottom: 40px;
}

.content-section h2,
.content-block h2,
.block-heading h2,
.block-header h2 {
  font-size: 22px;
  color: var(--color-primary);
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--color-border-light);
  position: relative;
}

.content-section h2::after,
.content-block h2::after,
.block-heading h2::after,
.block-header h2::after {
  content: "";
  display: block;
  width: 40px;
  height: 3px;
  background-color: var(--color-accent);
  margin-top: 10px;
}

.content-section p,
.content-block p {
  font-size: 15px;
  color: var(--color-text);
  line-height: 1.8;
}

/* --- 页脚 --- */
.site-footer {
  background-color: var(--color-primary-dark);
  color: #A8B6C4;
  padding: 48px 0 0;
}

.footer-inner {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: 1.2fr 2fr;
  gap: 40px;
}

.footer-brand {
  padding-right: 24px;
}

.footer-logo {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 12px;
}

.footer-slogan {
  font-size: 14px;
  line-height: 1.8;
  color: #8A9BA9;
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.link-group .group-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-white);
  margin-bottom: 14px;
}

.link-group ul li {
  margin-bottom: 8px;
}

.link-group ul li a {
  font-size: 14px;
  color: #A8B6C4;
  line-height: 1.6;
}

.link-group ul li a:hover {
  color: var(--color-white);
}

.footer-bottom {
  grid-column: 1 / -1;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 20px 0;
  margin-top: 24px;
  text-align: center;
}

.footer-bottom p {
  font-size: 13px;
  color: #7A8B99;
  margin: 0;
}

/* --- 相关链接 --- */
.related-links {
  margin-top: 40px;
  padding-top: 24px;
  border-top: 1px solid var(--color-border-light);
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.related-links-label {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text-light);
  margin-right: 4px;
}

.related-links-item {
  display: inline-block;
  padding: 6px 16px;
  font-size: 14px;
  color: var(--color-primary);
  background-color: var(--color-bg-light);
  border-radius: 20px;
  border: 1px solid var(--color-border-light);
  transition: background-color var(--transition-base), color var(--transition-base);
}

.related-links-item:hover {
  background-color: var(--color-primary);
  color: var(--color-white);
  border-color: var(--color-primary);
}

/* --- 图片容器 --- */
figure {
  margin: 24px 0;
}

figure img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  object-fit: cover;
}

figcaption {
  font-size: 13px;
  color: var(--color-text-lighter);
  text-align: center;
  margin-top: 8px;
  line-height: 1.5;
}

/* --- 步骤条 --- */
.step-list {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  counter-reset: step;
}

.step-item {
  position: relative;
  padding: 24px 20px 20px;
  background-color: var(--color-bg-light);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  transition: box-shadow var(--transition-base), transform var(--transition-base);
}

.step-item:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  font-size: 16px;
  font-weight: 700;
  color: var(--color-white);
  background-color: var(--color-primary);
  border-radius: var(--radius-md);
  margin-bottom: 14px;
}

.step-content h3 {
  font-size: 16px;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.step-content p {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.7;
  margin: 0;
}

/* --- 议程网格 --- */
.agenda-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.grid-item {
  background-color: var(--color-white);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  transition: box-shadow var(--transition-base), transform var(--transition-base);
}

.grid-item:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.item-icon {
  width: 44px;
  height: 44px;
  background-color: var(--color-bg-light);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  font-size: 20px;
  color: var(--color-primary);
}

.grid-item h3 {
  font-size: 17px;
  color: var(--color-primary);
  margin-bottom: 10px;
}

.grid-item p {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.7;
  margin-bottom: 14px;
}

.grid-item a {
  font-size: 14px;
  font-weight: 500;
  color: var(--color-accent);
}

.grid-item a:hover {
  color: var(--color-primary);
}

/* --- 资源卡片 --- */
.resource-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.resource-card {
  background-color: var(--color-bg-light);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  padding: 24px;
  transition: box-shadow var(--transition-base);
}

.resource-card:hover {
  box-shadow: var(--shadow-md);
}

.resource-card h3 {
  font-size: 17px;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.resource-card p {
  font-size: 14px;
  color: var(--color-text-light);
  margin-bottom: 12px;
}

.resource-card a {
  font-size: 14px;
  font-weight: 500;
  color: var(--color-accent);
}

/* --- 标签链接 --- */
.faq-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.tag-link {
  display: inline-block;
  padding: 8px 20px;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-primary);
  background-color: var(--color-bg-light);
  border: 1px solid var(--color-border-light);
  border-radius: 20px;
  transition: background-color var(--transition-base), color var(--transition-base),
    border-color var(--transition-base);
}

.tag-link:hover {
  background-color: var(--color-primary);
  color: var(--color-white);
  border-color: var(--color-primary);
}

/* --- FAQ 折叠 --- */
.faq-list {
  margin-bottom: 24px;
}

.faq-item {
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
  margin-bottom: 12px;
  background-color: var(--color-white);
  overflow: hidden;
}

.faq-item summary {
  padding: 16px 20px;
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text);
  cursor: pointer;
  list-style: none;
  position: relative;
  padding-right: 44px;
  transition: background-color var(--transition-base);
}

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

.faq-item summary::after {
  content: "+";
  position: absolute;
  right: 18px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 20px;
  font-weight: 400;
  color: var(--color-text-lighter);
  transition: transform var(--transition-base);
}

.faq-item[open] summary {
  background-color: var(--color-bg-light);
  color: var(--color-primary);
}

.faq-item[open] summary::after {
  content: "−";
  color: var(--color-primary);
}

.faq-answer {
  padding: 4px 20px 16px;
}

.faq-answer p {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.8;
  margin: 0;
}

/* --- 术语解释 --- */
.terms-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.term-item {
  background-color: var(--color-bg-light);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
  padding: 20px;
}

.term-item h3 {
  font-size: 15px;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.term-item p {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.7;
  margin: 0;
}

/* --- 状态标记 --- */
.status-badge {
  display: inline-block;
  padding: 4px 14px;
  font-size: 13px;
  font-weight: 500;
  border-radius: 20px;
  white-space: nowrap;
}

.status-pending {
  background-color: #F0F2F5;
  color: #6B7A8A;
  border: 1px solid #DCE2E8;
}

.status-processing {
  background-color: #E8F0FA;
  color: #1B3A5C;
  border: 1px solid #C4D6EA;
}

.status-review {
  background-color: #FDF0E8;
  color: #B44A1E;
  border: 1px solid #F2D5C4;
}

.status-completed {
  background-color: #EAF4EC;
  color: #2E6B35;
  border: 1px solid #C8E2CC;
}

/* --- 表格 --- */
.status-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
}

.status-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

.status-table thead {
  background-color: var(--color-primary);
  color: var(--color-white);
}

.status-table thead th {
  padding: 14px 18px;
  text-align: left;
  font-weight: 600;
  white-space: nowrap;
}

.status-table tbody td {
  padding: 14px 18px;
  border-bottom: 1px solid var(--color-border-light);
  color: var(--color-text);
  vertical-align: top;
}

.status-table tbody tr:nth-child(even) {
  background-color: var(--color-bg-light);
}

.status-table tbody tr:last-child td {
  border-bottom: none;
}

/* --- 节点列表 --- */
.node-list {
  counter-reset: node;
  display: grid;
  gap: 16px;
}

.node-item {
  background-color: var(--color-bg-light);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
  padding: 20px 24px;
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.node-item::before {
  counter-increment: node;
  content: counter(node);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  font-size: 14px;
  font-weight: 700;
  color: var(--color-white);
  background-color: var(--color-accent);
  border-radius: var(--radius-sm);
  flex-shrink: 0;
}

.node-item h3 {
  font-size: 15px;
  color: var(--color-primary);
  margin-bottom: 6px;
}

.node-item p {
  font-size: 14px;
  color: var(--color-text-light);
  margin: 0;
}

/* --- 普通列表 --- */
.plain-list {
  display: grid;
  gap: 10px;
}

.plain-list li {
  font-size: 14px;
  color: var(--color-text);
  padding: 10px 16px;
  background-color: var(--color-bg-light);
  border-radius: var(--radius-sm);
  border-left: 3px solid var(--color-primary);
}

.plain-list li strong {
  margin-right: 8px;
}

/* --- 相关链接块 --- */
.related-block {
  background-color: var(--color-bg-light);
  border-radius: var(--radius-lg);
  padding: 24px;
}

.related-block .block-header h2,
.related-block h2 {
  font-size: 18px;
  border-bottom: none;
  padding-bottom: 0;
  margin-bottom: 16px;
}

.related-block .block-header h2::after,
.related-block h2::after {
  display: none;
}

.related-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.related-link {
  display: inline-block;
  padding: 8px 18px;
  font-size: 14px;
  color: var(--color-primary);
  background-color: var(--color-white);
  border: 1px solid var(--color-border-light);
  border-radius: 20px;
  transition: background-color var(--transition-base), color var(--transition-base);
}

.related-link:hover {
  background-color: var(--color-primary);
  color: var(--color-white);
}

/* --- CTA 区块 --- */
.cta-guide {
  margin-top: 48px;
  background-color: var(--color-primary);
  border-radius: var(--radius-lg);
  padding: 36px 40px;
}

.cta-inner h2 {
  color: var(--color-white);
  font-size: 22px;
  margin-bottom: 12px;
  border-bottom: none;
  padding-bottom: 0;
}

.cta-inner h2::after {
  display: none;
}

.cta-inner p {
  color: #A8B6C4;
  font-size: 15px;
  margin-bottom: 20px;
}

.cta-links {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.cta-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 11px 28px;
  font-size: 15px;
  font-weight: 600;
  background-color: var(--color-white);
  color: var(--color-primary);
  border-radius: var(--radius-md);
  min-height: 44px;
  transition: background-color var(--transition-base), transform var(--transition-base);
}

.cta-button:hover {
  background-color: var(--color-accent);
  color: var(--color-white);
}

.cta-button.secondary {
  background-color: transparent;
  color: var(--color-white);
  border: 1px solid rgba(255, 255, 255, 0.5);
}

.cta-button.secondary:hover {
  background-color: rgba(255, 255, 255, 0.1);
  color: var(--color-white);
}

/* =========================================================
   4. Pages —— 各页面特有样式
   ========================================================= */

/* ========== 首页 ========== */
.home-main {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px 56px;
}

/* 首屏 */
.hero-section {
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr);
  gap: 40px;
  padding: 48px 0 56px;
}

.hero-index-nav {
  border-right: 1px solid var(--color-border-light);
  padding-right: 24px;
}

.index-list {
  display: grid;
  gap: 4px;
}

.index-list li a {
  display: block;
  padding: 10px 14px;
  font-size: 14px;
  color: var(--color-text);
  border-radius: var(--radius-sm);
  border-left: 3px solid transparent;
  transition: background-color var(--transition-base), color var(--transition-base),
    border-color var(--transition-base);
}

.index-list li a:hover {
  color: var(--color-primary);
  background-color: var(--color-bg-light);
  border-left-color: var(--color-accent);
}

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

.hero-main-content h1 {
  font-size: 32px;
  color: var(--color-primary);
  margin-bottom: 20px;
  line-height: 1.4;
}

.hero-lead {
  font-size: 17px;
  color: var(--color-text-light);
  line-height: 1.9;
  margin-bottom: 24px;
  max-width: 640px;
}

.hero-cta-group {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 32px;
}

.hero-figure {
  margin: 0;
}

.hero-figure img {
  width: 100%;
  max-height: 340px;
  object-fit: cover;
  border-radius: var(--radius-lg);
}

/* Section 通用 */
.section {
  padding: 56px 0;
  border-top: 1px solid var(--color-border-light);
}

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

.section-head h2 {
  font-size: 24px;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.section-desc {
  font-size: 15px;
  color: var(--color-text-light);
  max-width: 680px;
}

/* 服务矩阵 */
.service-matrix {
  background-color: var(--color-bg-light);
  padding-left: 24px;
  padding-right: 24px;
  margin-left: -24px;
  margin-right: -24px;
}

.service-matrix .agenda-grid {
  margin-bottom: 32px;
}

.service-figure {
  margin: 0;
}

.service-figure img {
  width: 100%;
  max-height: 320px;
  object-fit: cover;
  border-radius: var(--radius-lg);
}

/* 处理流程预览 */
.process-preview .step-list {
  margin-bottom: 24px;
}

.link-more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 15px;
  font-weight: 500;
  color: var(--color-accent);
  padding: 10px 0;
}

.link-more:hover {
  color: var(--color-primary);
}

.link-more::after {
  content: "→";
  transition: transform var(--transition-base);
}

.link-more:hover::after {
  transform: translateX(4px);
}

/* 资料预览 */
.resources-preview .resource-cards {
  grid-template-columns: repeat(3, 1fr);
}

/* 常见问题预览 */
.faq-preview .faq-tags {
  margin-bottom: 24px;
}

.faq-more {
  font-size: 14px;
  color: var(--color-text-light);
}

.faq-more a {
  color: var(--color-accent);
  font-weight: 500;
}

/* ========== 服务项目页 ========== */
.page-heading .heading-desc {
  font-size: 16px;
  color: var(--color-text-light);
  line-height: 1.8;
  margin-bottom: 24px;
  max-width: 720px;
}

.page-figure {
  margin: 24px 0 36px;
}

.page-figure img {
  width: 100%;
  max-height: 320px;
  object-fit: cover;
}

.block-heading {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}

.block-tag {
  display: inline-block;
  padding: 4px 12px;
  font-size: 12px;
  font-weight: 600;
  color: var(--color-white);
  background-color: var(--color-accent);
  border-radius: var(--radius-sm);
  flex-shrink: 0;
}

.block-heading h2 {
  margin-bottom: 0;
  padding-bottom: 0;
  border-bottom: none;
}

.block-heading h2::after {
  display: none;
}

.service-item {
  margin-bottom: 40px;
}

.service-detail {
  background-color: var(--color-bg-light);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
  padding: 8px 24px;
}

.detail-row {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 16px;
  padding: 14px 0;
  border-bottom: 1px solid var(--color-border-light);
}

.detail-row:last-child {
  border-bottom: none;
}

.detail-label {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-primary);
  margin: 0;
}

.detail-text {
  font-size: 14px;
  color: var(--color-text);
  line-height: 1.7;
  margin: 0;
}

.boundary-block {
  margin-top: 48px;
}

.boundary-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.boundary-item {
  background-color: var(--color-bg-light);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
  padding: 24px;
}

.boundary-item h3 {
  font-size: 16px;
  color: var(--color-primary);
  margin-bottom: 14px;
}

.boundary-list {
  display: grid;
  gap: 8px;
}

.boundary-list li {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.7;
  padding-left: 16px;
  position: relative;
}

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

/* ========== 处理流程页 ========== */
.page-lead {
  font-size: 16px;
  color: var(--color-text-light);
  line-height: 1.8;
  max-width: 720px;
}

.process-timeline {
  margin-bottom: 48px;
}

.process-timeline > h2 {
  font-size: 22px;
  color: var(--color-primary);
  margin-bottom: 12px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--color-border-light);
  position: relative;
}

.process-timeline > h2::after {
  content: "";
  display: block;
  width: 40px;
  height: 3px;
  background-color: var(--color-accent);
  margin-top: 10px;
}

.section-intro {
  font-size: 15px;
  color: var(--color-text-light);
  margin-bottom: 28px;
  max-width: 680px;
}

.process-step {
  display: grid;
  grid-template-columns: 80px minmax(0, 1fr);
  gap: 24px;
  padding: 24px 0;
  border-bottom: 1px solid var(--color-border-light);
  position: relative;
}

.process-step:last-child {
  border-bottom: none;
}

.step-marker {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  font-size: 18px;
  font-weight: 700;
  color: var(--color-white);
  background-color: var(--color-primary);
  border-radius: 50%;
  flex-shrink: 0;
}

.step-status {
  font-size: 12px;
  color: var(--color-text-lighter);
  white-space: nowrap;
}

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

.step-body h3 {
  font-size: 17px;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.step-body > p {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.7;
  margin-bottom: 12px;
}

.step-detail {
  font-size: 14px;
  color: var(--color-text);
  line-height: 1.7;
  margin-bottom: 6px;
}

.step-detail strong {
  color: var(--color-primary);
  margin-right: 8px;
}

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

.delivery-section > h2 {
  font-size: 22px;
  color: var(--color-primary);
  margin-bottom: 20px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--color-border-light);
  position: relative;
}

.delivery-section > h2::after {
  content: "";
  display: block;
  width: 40px;
  height: 3px;
  background-color: var(--color-accent);
  margin-top: 10px;
}

.delivery-item {
  background-color: var(--color-bg-light);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
  padding: 24px;
  margin-bottom: 16px;
}

.delivery-item h3 {
  font-size: 16px;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.delivery-item p {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.7;
  margin: 0;
}

.content-figure {
  margin: 32px 0;
}

.content-figure img {
  width: 100%;
  max-height: 300px;
  object-fit: cover;
}

/* 相关列表 */
.related-links-section {
  margin-top: 40px;
  padding-top: 24px;
  border-top: 1px solid var(--color-border-light);
}

.related-links-section h2 {
  font-size: 18px;
  color: var(--color-primary);
  margin-bottom: 16px;
}

.related-list {
  display: grid;
  gap: 10px;
}

.related-list li a {
  display: block;
  padding: 10px 16px;
  font-size: 14px;
  color: var(--color-text);
  background-color: var(--color-bg-light);
  border-radius: var(--radius-sm);
  border-left: 3px solid var(--color-primary);
  transition: background-color var(--transition-base), color var(--transition-base);
}

.related-list li a:hover {
  background-color: var(--color-primary);
  color: var(--color-white);
}

/* ========== 服务政策页 ========== */
.layout-shell.sidebar-left {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 32px 24px 56px;
  display: grid;
  grid-template-columns: var(--sidebar-width) minmax(0, 1fr);
  gap: 32px;
}

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

.page-intro {
  font-size: 16px;
  color: var(--color-text-light);
  line-height: 1.8;
  margin-bottom: 32px;
  max-width: 720px;
}

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

.content-section h2 {
  font-size: 22px;
  color: var(--color-primary);
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--color-border-light);
  position: relative;
}

.content-section h2::after {
  content: "";
  display: block;
  width: 40px;
  height: 3px;
  background-color: var(--color-accent);
  margin-top: 10px;
}

.content-section h3 {
  font-size: 16px;
  color: var(--color-primary);
  margin: 20px 0 8px;
}

.principles-list,
.boundary-list {
  display: grid;
  gap: 12px;
  margin: 16px 0;
}

.principles-list li,
.boundary-list li {
  padding: 14px 18px;
  background-color: var(--color-bg-light);
  border-left: 3px solid var(--color-primary);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-size: 14px;
  color: var(--color-text);
  line-height: 1.7;
}

.principles-list li strong,
.boundary-list li strong {
  display: block;
  color: var(--color-primary);
  margin-bottom: 4px;
}

.policy-figure {
  margin: 28px 0;
}

.policy-figure img {
  width: 100%;
  max-height: 300px;
  object-fit: cover;
}

.related-block ul {
  display: grid;
  gap: 10px;
}

.related-block ul li a {
  display: block;
  padding: 10px 16px;
  font-size: 14px;
  color: var(--color-primary);
  background-color: var(--color-white);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-sm);
  transition: background-color var(--transition-base), color var(--transition-base);
}

.related-block ul li a:hover {
  background-color: var(--color-primary);
  color: var(--color-white);
}

/* ========== 问题分类页 ========== */
.page-title-block p {
  font-size: 16px;
  color: var(--color-text-light);
  line-height: 1.8;
  max-width: 720px;
  margin-bottom: 32px;
}

.faq-intro {
  margin-bottom: 40px;
}

.faq-guide {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  align-items: center;
  background-color: var(--color-bg-light);
  border-radius: var(--radius-lg);
  padding: 28px;
}

.faq-guide h2 {
  font-size: 20px;
  color: var(--color-primary);
  margin-bottom: 12px;
}

.faq-guide p {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.8;
  margin: 0;
}

.faq-figure {
  margin: 0;
}

.faq-figure img {
  width: 100%;
  max-height: 220px;
  object-fit: cover;
  border-radius: var(--radius-md);
}

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

.faq-section > h2 {
  font-size: 22px;
  color: var(--color-primary);
  margin-bottom: 20px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--color-border-light);
  position: relative;
}

.faq-section > h2::after {
  content: "";
  display: block;
  width: 40px;
  height: 3px;
  background-color: var(--color-accent);
  margin-top: 10px;
}

/* ========== 资料下载页 ========== */
.page-title-area {
  margin-bottom: 24px;
}

.page-subtitle {
  font-size: 16px;
  color: var(--color-text-light);
  line-height: 1.8;
  max-width: 720px;
}

.resource-overview {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  align-items: center;
  background-color: var(--color-bg-light);
  border-radius: var(--radius-lg);
  padding: 28px;
  margin-bottom: 40px;
}

.resource-media {
  min-width: 0;
}

.media-figure {
  margin: 0;
}

.media-figure img {
  width: 100%;
  max-height: 240px;
  object-fit: cover;
  border-radius: var(--radius-md);
}

.overview-text {
  font-size: 15px;
  color: var(--color-text-light);
  line-height: 1.8;
  margin: 0;
}

.resource-list-section {
  margin-bottom: 48px;
}

.resource-list-section > h2 {
  font-size: 22px;
  color: var(--color-primary);
  margin-bottom: 12px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--color-border-light);
  position: relative;
}

.resource-list-section > h2::after {
  content: "";
  display: block;
  width: 40px;
  height: 3px;
  background-color: var(--color-accent);
  margin-top: 10px;
}

.resource-group {
  margin-bottom: 32px;
}

.group-heading {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}

.group-tag {
  display: inline-block;
  padding: 4px 12px;
  font-size: 12px;
  font-weight: 600;
  color: var(--color-white);
  border-radius: var(--radius-sm);
}

.tag-entry {
  background-color: var(--color-primary);
}

.tag-template {
  background-color: var(--color-accent);
}

.tag-term {
  background-color: #4A7A5A;
}

.group-heading h3 {
  font-size: 17px;
  color: var(--color-primary);
  margin: 0;
}

.resource-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
  padding: 20px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
  margin-bottom: 12px;
  transition: box-shadow var(--transition-base);
}

.resource-card:hover {
  box-shadow: var(--shadow-sm);
}

.resource-info {
  flex: 1;
  min-width: 220px;
}

.resource-name {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 6px;
}

.resource-desc {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.7;
  margin: 0;
}

.resource-meta {
  display: flex;
  gap: 20px;
  flex-shrink: 0;
}

.meta-item {
  font-size: 13px;
  color: var(--color-text-lighter);
  margin: 0;
}

/* 使用说明 */
.usage-guide-section {
  margin-bottom: 48px;
}

.usage-guide-section > h2 {
  font-size: 22px;
  color: var(--color-primary);
  margin-bottom: 12px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--color-border-light);
  position: relative;
}

.usage-guide-section > h2::after {
  content: "";
  display: block;
  width: 40px;
  height: 3px;
  background-color: var(--color-accent);
  margin-top: 10px;
}

.usage-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 24px;
}

.usage-step {
  background-color: var(--color-bg-light);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
  padding: 24px;
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.usage-step .step-number {
  width: 36px;
  height: 36px;
  font-size: 15px;
  border-radius: var(--radius-sm);
  flex-shrink: 0;
}

.usage-step .step-content h3 {
  font-size: 15px;
  color: var(--color-primary);
  margin-bottom: 6px;
}

.usage-step .step-content p {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.7;
  margin: 0;
}

.usage-note {
  background-color: #FDF0E8;
  border: 1px solid #F2D5C4;
  border-radius: var(--radius-md);
  padding: 16px 20px;
}

.usage-note p {
  font-size: 14px;
  color: #8A4A28;
  line-height: 1.7;
  margin: 0;
}

/* 链接卡片 */
.link-card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.link-card {
  display: block;
  background-color: var(--color-bg-light);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
  padding: 20px 24px;
  transition: box-shadow var(--transition-base), transform var(--transition-base);
}

.link-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.card-label {
  display: block;
  font-size: 13px;
  color: var(--color-accent);
  font-weight: 500;
  margin-bottom: 6px;
}

.card-text {
  display: block;
  font-size: 15px;
  font-weight: 600;
  color: var(--color-primary);
}

/* ========== 进度说明页 ========== */
.block-header {
  margin-bottom: 20px;
}

.block-header h2 {
  font-size: 22px;
  color: var(--color-primary);
  margin-bottom: 8px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--color-border-light);
  position: relative;
}

.block-header h2::after {
  content: "";
  display: block;
  width: 40px;
  height: 3px;
  background-color: var(--color-accent);
  margin-top: 10px;
}

.block-header p {
  font-size: 15px;
  color: var(--color-text-light);
  line-height: 1.8;
  max-width: 680px;
}

.status-table-wrap {
  margin-bottom: 24px;
}

.content-figure img {
  max-height: 280px;
}

.related-block .related-links {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

/* ========== 关于我们页 ========== */
.page-heading {
  margin-bottom: 32px;
}

.page-intro {
  font-size: 16px;
  color: var(--color-text-light);
  line-height: 1.8;
  max-width: 720px;
}

.content-section .content-figure {
  margin: 24px 0;
}

.content-figure img {
  width: 100%;
  max-height: 300px;
  object-fit: cover;
}

.org-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin: 24px 0;
}

.org-item {
  background-color: var(--color-bg-light);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
  padding: 20px;
}

.org-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-accent);
  margin-bottom: 8px;
}

.org-text {
  font-size: 14px;
  color: var(--color-text);
  line-height: 1.7;
  margin: 0;
}

.related-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 12px;
}

.related-links ul {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.related-links ul li a {
  display: inline-block;
  padding: 8px 18px;
  font-size: 14px;
  color: var(--color-primary);
  background-color: var(--color-bg-light);
  border: 1px solid var(--color-border-light);
  border-radius: 20px;
  transition: background-color var(--transition-base), color var(--transition-base);
}

.related-links ul li a:hover {
  background-color: var(--color-primary);
  color: var(--color-white);
}

/* ========== 404 页 ========== */
.error-main {
  min-height: 60vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 60px 24px;
}

.error-section {
  text-align: center;
  max-width: 560px;
}

.error-code {
  font-size: 72px;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1;
  margin-bottom: 16px;
}

.error-section h1 {
  font-size: 24px;
  color: var(--color-primary);
  margin-bottom: 12px;
}

.error-desc {
  font-size: 16px;
  color: var(--color-text-light);
  margin-bottom: 28px;
}

.btn-home {
  margin-bottom: 32px;
}

.error-nav {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

.error-nav a {
  font-size: 14px;
  color: var(--color-text-light);
  padding: 8px 4px;
}

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

/* =========================================================
   5. Responsive —— 响应式断点
   ========================================================= */

/* --- 平板 1024px --- */
@media (max-width: 1024px) {
  :root {
    --container-width: 100%;
  }

  .page-layout.sidebar-left {
    grid-template-columns: 200px minmax(0, 1fr);
    gap: 24px;
  }

  .layout-shell.sidebar-left {
    grid-template-columns: 200px minmax(0, 1fr);
    gap: 24px;
  }

  .agenda-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
  }

  .resource-cards {
    gap: 16px;
  }

  .step-list {
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
  }

  .terms-list {
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
  }

  .usage-steps {
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
  }

  .link-card-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
  }

  .org-list {
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
  }

  .footer-inner {
    grid-template-columns: 1fr 1.8fr;
  }

  .footer-links {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* --- 手机 768px --- */
@media (max-width: 768px) {
  :root {
    --header-height: 60px;
  }

  .header-inner {
    padding: 0 16px;
    gap: 12px;
  }

  .logo-text {
    font-size: 17px;
  }

  /* 导航切换 */
  .nav-toggle {
    display: flex;
  }

  .main-nav {
    position: static;
  }

  .nav-list {
    display: none;
    position: absolute;
    top: var(--header-height);
    left: 0;
    right: 0;
    background-color: var(--color-white);
    border-bottom: 1px solid var(--color-border-light);
    box-shadow: var(--shadow-md);
    flex-direction: column;
    align-items: stretch;
    padding: 8px 16px 16px;
    gap: 2px;
    z-index: 99;
  }

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

  .nav-list li a {
    padding: 12px 16px;
    font-size: 15px;
    border-radius: var(--radius-sm);
  }

  .nav-list li a.is-current {
    background-color: var(--color-bg-light);
  }

  /* 面包屑 */
  .breadcrumb-inner,
  .breadcrumb-nav .breadcrumb-list {
    padding: 10px 16px;
    font-size: 13px;
  }

  /* 页头标题 */
  .page-header {
    padding: 24px 0;
  }

  .page-title {
    padding: 0 16px;
    font-size: 24px;
  }

  .page-description {
    padding: 0 16px;
    font-size: 14px;
  }

  /* 内页布局 */
  .page-layout {
    padding: 24px 16px 48px;
  }

  .page-layout.sidebar-left {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .layout-shell.sidebar-left {
    grid-template-columns: 1fr;
    gap: 24px;
    padding: 24px 16px 48px;
  }

  /* 侧栏在移动端放到正文后面 */
  .page-layout.sidebar-left .sidebar,
  .page-layout.sidebar-left .page-sidebar {
    order: 2;
  }

  .page-layout.sidebar-left .inner-main,
  .page-layout.sidebar-left .site-main {
    order: 1;
  }

  .layout-shell.sidebar-left .sidebar {
    order: 2;
  }

  .layout-shell.sidebar-left .content-area {
    order: 1;
  }

  .sidebar-inner,
  .sidebar-nav {
    position: static;
  }

  .sidebar-title {
    margin-bottom: 8px;
  }

  .sidebar-nav ul {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
  }

  .sidebar-nav ul li a,
  .sidebar-list li a {
    padding: 8px 14px;
    border-left: none;
    border-radius: var(--radius-sm);
    background-color: var(--color-bg-light);
    font-size: 13px;
  }

  .sidebar-nav ul li a:hover,
  .sidebar-list li a:hover {
    border-left: none;
  }

  /* 首页首屏 */
  .hero-section {
    grid-template-columns: 1fr;
    gap: 24px;
    padding: 32px 0 40px;
  }

  .hero-index-nav {
    border-right: none;
    padding-right: 0;
    order: 2;
  }

  .hero-main-content {
    order: 1;
  }

  .hero-main-content h1 {
    font-size: 24px;
  }

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

  .index-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
  }

  .index-list li a {
    padding: 8px 16px;
    background-color: var(--color-bg-light);
    border-left: none;
    border-radius: 20px;
    font-size: 13px;
  }

  .index-list li a:hover {
    border-left: none;
  }

  /* Section */
  .section {
    padding: 40px 0;
  }

  .service-matrix {
    padding-left: 16px;
    padding-right: 16px;
    margin-left: -16px;
    margin-right: -16px;
  }

  .section-head h2 {
    font-size: 20px;
  }

  /* 网格降列 */
  .agenda-grid {
    grid-template-columns: 1fr;
  }

  .resource-cards {
    grid-template-columns: 1fr;
  }

  .step-list {
    grid-template-columns: 1fr;
  }

  .terms-list {
    grid-template-columns: 1fr;
  }

  .usage-steps {
    grid-template-columns: 1fr;
  }

  .link-card-grid {
    grid-template-columns: 1fr;
  }

  .org-list {
    grid-template-columns: 1fr;
  }

  .boundary-content {
    grid-template-columns: 1fr;
  }

  .faq-guide {
    grid-template-columns: 1fr;
  }

  .resource-overview {
    grid-template-columns: 1fr;
  }

  .process-step {
    grid-template-columns: 56px minmax(0, 1fr);
    gap: 16px;
    padding: 20px 0;
  }

  .step-number {
    width: 40px;
    height: 40px;
    font-size: 16px;
  }

  .detail-row {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  /* CTA */
  .cta-guide {
    padding: 28px 24px;
  }

  /* 页脚 */
  .footer-inner {
    grid-template-columns: 1fr;
    gap: 32px;
    padding: 0 16px;
  }

  .footer-brand {
    padding-right: 0;
  }

  .footer-links {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }

  /* 404 */
  .error-code {
    font-size: 56px;
  }
}

/* --- 小屏手机 390px --- */
@media (max-width: 480px) {
  .footer-links {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .hero-cta-group {
    flex-direction: column;
    align-items: stretch;
  }

  .hero-cta-group .btn {
    width: 100%;
  }

  .cta-links {
    flex-direction: column;
    align-items: stretch;
  }

  .cta-button {
    width: 100%;
  }

  .resource-card {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

  .resource-meta {
    flex-wrap: wrap;
    gap: 12px;
  }

  .detail-row {
    padding: 12px 0;
  }

  .process-step {
    grid-template-columns: 44px minmax(0, 1fr);
    gap: 12px;
  }

  .step-marker {
    align-items: flex-start;
  }

  .step-number {
    width: 36px;
    height: 36px;
    font-size: 14px;
  }

  .step-status {
    font-size: 11px;
  }

  .related-links {
    flex-direction: column;
    align-items: flex-start;
  }

  .related-links-item {
    width: 100%;
    text-align: center;
  }

  .related-links ul {
    flex-direction: column;
    width: 100%;
  }

  .related-links ul li a {
    width: 100%;
    text-align: center;
  }

  .error-nav {
    flex-direction: column;
    align-items: center;
  }
}

/* --- 桌面 1440px 及以上 --- */
@media (min-width: 1440px) {
  :root {
    --container-width: 1280px;
  }

  .hero-main-content h1 {
    font-size: 34px;
  }
}