/* ============================================================
   免费吃瓜爆料 · 整站样式表
   站点: 371tourclub.cn
   视觉方向: 高对比无障碍风 · 白底深灰 · 深藏蓝 + 信号橙
   ============================================================ */

/* ============================================================
   Base · 基础变量与全局重置
   ============================================================ */
:root {
  --color-text: #1a1a1a;
  --color-bg: #ffffff;
  --color-primary: #0b3c5d;
  --color-primary-dark: #082d47;
  --color-accent: #d95d39;
  --color-accent-dark: #c04a28;
  --color-border: #d9d9d9;
  --color-surface: #f4f6f8;
  --color-white: #ffffff;
  --font-sans: -apple-system, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  --container-width: 1200px;
  --gutter: 32px;
  --radius-sm: 4px;
  --radius-md: 8px;
  --transition-fast: 0.2s ease;
}

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

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

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.8;
  color: var(--color-text);
  background: var(--color-bg);
}

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

a {
  color: var(--color-primary);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color var(--transition-fast);
}

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

a:focus-visible,
button:focus-visible,
summary:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 2px;
}

ul,
ol {
  list-style-position: inside;
}

h1,
h2,
h3,
h4 {
  font-weight: 700;
  line-height: 1.4;
  color: var(--color-text);
}

h1 {
  font-size: 36px;
}

h2 {
  font-size: 28px;
}

h3 {
  font-size: 20px;
}

h4 {
  font-size: 18px;
}

p {
  margin-bottom: 16px;
}

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

/* ============================================================
   Layout · 全站布局骨架
   ============================================================ */
.site-body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.site-header {
  background: var(--color-white);
  border-bottom: 1px solid var(--color-border);
}

.header-inner {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--gutter);
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
  gap: 24px;
}

.logo-area {
  flex-shrink: 0;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.logo-mark {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: var(--color-primary);
  color: var(--color-white);
  font-weight: 700;
  font-size: 18px;
  border-radius: var(--radius-sm);
}

.logo-text {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-primary);
}

.main-nav {
  display: flex;
  align-items: center;
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: 4px;
}

.nav-menu li {
  margin: 0;
}

.nav-menu a {
  display: block;
  padding: 8px 14px;
  font-size: 15px;
  text-decoration: none;
  color: var(--color-text);
  border-radius: var(--radius-sm);
  transition: background var(--transition-fast), color var(--transition-fast);
}

.nav-menu a:hover {
  color: var(--color-primary);
  background: var(--color-surface);
}

.nav-menu a.is-current {
  color: var(--color-primary);
  background: var(--color-surface);
  font-weight: 700;
}

.nav-toggle {
  display: none;
  background: none;
  border: 0;
  cursor: pointer;
  padding: 10px;
  flex-direction: column;
  gap: 5px;
}

.nav-toggle-bar {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-primary);
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.site-main {
  flex: 1;
  width: 100%;
}

.inner-main {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.site-footer {
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  margin-top: 64px;
}

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

.footer-col h3 {
  font-size: 16px;
  margin-bottom: 12px;
  color: var(--color-primary);
}

.footer-col ul {
  list-style: none;
}

.footer-col li {
  margin-bottom: 8px;
}

.footer-col a {
  font-size: 14px;
  text-decoration: none;
}

.footer-col a:hover {
  text-decoration: underline;
}

.footer-bottom {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 16px var(--gutter) 24px;
  border-top: 1px solid var(--color-border);
}

.footer-bottom p {
  font-size: 14px;
  color: var(--color-text);
  margin-bottom: 4px;
}

/* ============================================================
   Components · 通用组件
   ============================================================ */
.breadcrumb {
  font-size: 14px;
  margin: 24px 0 16px;
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.breadcrumb ol {
  display: flex;
  align-items: center;
  gap: 8px;
  list-style: none;
  flex-wrap: wrap;
}

.breadcrumb a {
  text-decoration: none;
}

.breadcrumb a:hover {
  text-decoration: underline;
}

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

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

.page-header {
  margin-bottom: 32px;
}

.page-title {
  font-size: 36px;
  line-height: 1.3;
}

.page-title-area {
  margin-bottom: 24px;
}

.page-title-area p {
  font-size: 16px;
  max-width: 640px;
}

.page-title-block {
  margin-bottom: 32px;
}

.page-title-block p {
  max-width: 640px;
}

.page-heading {
  margin-bottom: 32px;
}

.page-lead {
  font-size: 17px;
  max-width: 640px;
}

.page-layout {
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(0, 1fr);
  gap: 32px;
  align-items: start;
}

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

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

.aside-block {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 24px;
  margin-bottom: 24px;
}

.aside-block h2,
.aside-block h3 {
  font-size: 18px;
  margin-bottom: 12px;
  color: var(--color-primary);
}

.aside-block p {
  font-size: 15px;
  margin-bottom: 12px;
}

.aside-block a {
  font-size: 15px;
  display: inline-block;
}

.aside-links,
.sidebar-links {
  list-style: none;
}

.aside-links li,
.sidebar-links li {
  margin-bottom: 10px;
}

.aside-links a,
.sidebar-links a {
  text-decoration: none;
  font-size: 15px;
}

.aside-links a:hover,
.sidebar-links a:hover {
  text-decoration: underline;
}

.btn {
  display: inline-block;
  padding: 12px 24px;
  font-size: 16px;
  font-weight: 700;
  text-decoration: none;
  border-radius: var(--radius-md);
  transition: background var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast);
  cursor: pointer;
}

.btn-primary {
  background: var(--color-primary);
  color: var(--color-white);
  border: 2px solid var(--color-primary);
}

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

.btn-secondary {
  background: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}

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

.text-link {
  color: var(--color-primary);
  text-decoration: underline;
  font-weight: 700;
  display: inline-block;
}

.text-link:hover {
  color: var(--color-accent);
}

.related-links {
  max-width: var(--container-width);
  margin: 40px auto 0;
  padding: 24px var(--gutter);
  border-top: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.related-links-label {
  font-weight: 700;
  font-size: 15px;
}

.related-links-item {
  font-size: 15px;
  text-decoration: none;
}

.related-links-item:hover {
  text-decoration: underline;
}

/* ============================================================
   Topbar · 顶部工具栏（仅首页）
   ============================================================ */
.topbar {
  background: var(--color-primary);
  color: var(--color-white);
  font-size: 14px;
}

.topbar-inner {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 8px var(--gutter);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.lang-indicator {
  font-weight: 700;
}

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

.topbar-links a {
  color: var(--color-white);
  font-size: 14px;
  text-decoration: none;
}

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

/* ============================================================
   Pages · 首页模块
   ============================================================ */
.home-main {
  width: 100%;
}

.hero-section {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
}

.hero-inner {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 64px var(--gutter);
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  gap: 48px;
  align-items: center;
}

.hero-content h1 {
  font-size: 36px;
  margin-bottom: 16px;
}

.hero-lead {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 12px;
}

.hero-sub {
  font-size: 16px;
  margin-bottom: 24px;
}

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

.hero-media {
  margin: 0;
}

.hero-media img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
}

.hero-media figcaption {
  font-size: 14px;
  color: var(--color-text);
  margin-top: 8px;
  line-height: 1.6;
}

.brand-story {
  background: var(--color-white);
}

.story-inner {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 64px var(--gutter);
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
  gap: 48px;
}

.story-text h2 {
  margin-bottom: 16px;
}

.story-text p {
  margin-bottom: 16px;
}

.story-points h3 {
  font-size: 20px;
  margin-bottom: 12px;
  color: var(--color-primary);
}

.story-points ul {
  list-style: none;
}

.story-points li {
  padding: 8px 0 8px 20px;
  position: relative;
  border-bottom: 1px solid var(--color-border);
}

.story-points li:last-child {
  border-bottom: 0;
}

.story-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 18px;
  width: 8px;
  height: 8px;
  background: var(--color-accent);
  border-radius: 2px;
}

.services-section {
  margin-bottom: 48px;
}

.services-section h2 {
  margin-bottom: 8px;
}

.section-intro {
  margin-bottom: 24px;
}

.service-list {
  border-top: 1px solid var(--color-border);
}

.service-item {
  display: flex;
  gap: 20px;
  padding: 24px 0;
  border-bottom: 1px solid var(--color-border);
  align-items: flex-start;
}

.service-index {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-accent);
  line-height: 1.4;
  min-width: 40px;
}

.service-body h3 {
  margin-bottom: 8px;
}

.service-body p {
  margin-bottom: 8px;
}

.service-body a {
  font-size: 15px;
}

.example-section {
  margin-bottom: 48px;
}

.example-section h2 {
  margin-bottom: 16px;
}

.example-wrap {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
  gap: 32px;
  align-items: start;
}

.example-image {
  margin: 0;
}

.example-image img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
}

.example-image figcaption {
  font-size: 14px;
  margin-top: 8px;
  line-height: 1.6;
}

.example-content p {
  margin-bottom: 12px;
}

.example-content ol {
  margin-bottom: 16px;
  padding-left: 20px;
}

.example-content li {
  margin-bottom: 8px;
}

.guide-section {
  background: var(--color-primary);
  color: var(--color-white);
  padding: 64px 0;
}

.guide-section h2 {
  max-width: var(--container-width);
  margin: 0 auto 32px;
  padding: 0 var(--gutter);
  color: var(--color-white);
}

.guide-steps {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--gutter);
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
}

.guide-step {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-md);
  padding: 24px 20px;
}

.guide-step .step-num {
  display: inline-block;
  font-size: 14px;
  font-weight: 700;
  color: var(--color-accent);
  margin-bottom: 8px;
}

.guide-step h3 {
  font-size: 18px;
  color: var(--color-white);
  margin-bottom: 8px;
}

.guide-step p {
  font-size: 14px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 8px;
}

.guide-step a {
  color: var(--color-white);
  font-size: 14px;
  text-decoration: underline;
}

.faq-section {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 64px var(--gutter);
}

.faq-section h2 {
  margin-bottom: 24px;
}

.faq-list {
  max-width: 800px;
}

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

.faq-item summary {
  padding: 16px 20px;
  font-size: 16px;
  font-weight: 700;
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}

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

.faq-item summary::after {
  content: "+";
  font-size: 20px;
  font-weight: 400;
  color: var(--color-primary);
  flex-shrink: 0;
  transition: transform var(--transition-fast);
}

.faq-item[open] summary::after {
  transform: rotate(45deg);
}

.faq-item p {
  padding: 0 20px 16px;
  margin: 0;
  font-size: 15px;
}

/* ============================================================
   Pages · 业务页 (yewu)
   ============================================================ */
.page-yewu .content-main {
  min-width: 0;
}

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

.section-block {
  margin-bottom: 48px;
}

.section-block h2 {
  margin-bottom: 16px;
}

.two-col-text {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}

.text-col p {
  font-size: 16px;
  margin-bottom: 12px;
}

.scenario-list {
  list-style: none;
}

.scenario-item {
  padding: 24px 0;
  border-bottom: 1px solid var(--color-border);
}

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

.scenario-item h3 {
  margin-bottom: 8px;
}

.scenario-item p {
  margin-bottom: 8px;
}

.scenario-goal {
  font-size: 15px;
  color: var(--color-primary);
  font-weight: 700;
}

.work-list {
  list-style: none;
}

.work-item {
  padding: 20px 0;
  border-bottom: 1px solid var(--color-border);
}

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

.work-item h3 {
  font-size: 18px;
  margin-bottom: 8px;
}

.work-item p {
  margin-bottom: 8px;
}

.step-meta {
  font-size: 15px;
  color: var(--color-primary);
  font-weight: 700;
}

.section-link {
  display: inline-block;
  margin-top: 8px;
}

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

.content-figure img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
}

.content-figure figcaption {
  font-size: 14px;
  margin-top: 8px;
  line-height: 1.6;
}

.step-list {
  list-style: none;
}

/* ============================================================
   Pages · 行业方案页 (hangye-fangan)
   ============================================================ */
.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.anchor-directory {
  margin-bottom: 40px;
}

.anchor-links {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.anchor-link {
  display: inline-block;
  padding: 8px 20px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  text-decoration: none;
  font-size: 15px;
  font-weight: 700;
}

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

.layout-shell {
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(0, 1fr);
  gap: 32px;
  align-items: start;
}

.scenario-matrix {
  min-width: 0;
}

.scenario-row {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  margin-bottom: 24px;
  overflow: hidden;
}

.scenario-cell {
  padding: 24px;
}

.scenario-cell.goal {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
}

.scenario-cell.goal h3 {
  color: var(--color-primary);
  margin-bottom: 8px;
}

.scenario-cell.goal p {
  margin-bottom: 0;
}

.scenario-cell.dimension {
  border-bottom: 1px solid var(--color-border);
}

.scenario-cell.dimension h4 {
  font-size: 16px;
  margin-bottom: 8px;
}

.scenario-cell.dimension ul {
  list-style: none;
}

.scenario-cell.dimension li {
  padding: 4px 0 4px 16px;
  position: relative;
  font-size: 15px;
}

.scenario-cell.dimension li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 14px;
  width: 6px;
  height: 6px;
  background: var(--color-accent);
  border-radius: 2px;
}

.scenario-cell.verify h4 {
  font-size: 16px;
  margin-bottom: 8px;
}

.scenario-cell.verify p {
  margin-bottom: 0;
  font-size: 15px;
}

.aside-panel {
  min-width: 0;
}

.scenario-visual {
  margin: 48px 0;
}

.visual-figure {
  margin: 0;
}

.visual-figure img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
}

.visual-figure figcaption {
  font-size: 14px;
  margin-top: 8px;
  line-height: 1.6;
}

.method-entry {
  margin-bottom: 48px;
}

.method-entry p {
  margin-bottom: 16px;
}

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

.entry-links a {
  font-weight: 700;
}

/* ============================================================
   Pages · 交付体系页 (jiaofu)
   ============================================================ */
.delivery-steps {
  margin-bottom: 48px;
}

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

.delivery-steps .step-list {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
}

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

.step-number {
  display: inline-block;
  font-size: 14px;
  font-weight: 700;
  color: var(--color-accent);
  margin-bottom: 12px;
}

.step-body h3 {
  font-size: 18px;
  margin-bottom: 8px;
}

.step-desc {
  font-size: 14px;
  margin-bottom: 12px;
}

.step-detail {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.detail-row {
  font-size: 14px;
  line-height: 1.6;
}

.detail-row dt {
  font-weight: 700;
  display: inline;
}

.detail-row dd {
  display: inline;
  margin: 0;
}

.acceptance-criteria {
  margin-bottom: 48px;
}

.criteria-list {
  list-style: none;
}

.criteria-item {
  padding: 20px 0;
  border-bottom: 1px solid var(--color-border);
}

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

.criteria-item h3 {
  font-size: 18px;
  margin-bottom: 8px;
}

.criteria-item p {
  margin-bottom: 0;
}

.delivery-visual {
  margin-bottom: 48px;
}

.visual-note {
  font-size: 15px;
  margin-top: 12px;
}

.start-entry {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 32px;
  margin-bottom: 48px;
}

.start-entry h2 {
  margin-bottom: 12px;
}

.start-entry p {
  margin-bottom: 16px;
}

/* ============================================================
   Pages · 洞察页 (dongcha)
   ============================================================ */
.insight-intro {
  margin-bottom: 32px;
}

.insight-intro p {
  max-width: 640px;
}

.topic-tags {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.topic-tags span {
  display: inline-block;
  padding: 4px 14px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 999px;
  font-size: 14px;
  font-weight: 700;
}

.article-list {
  margin-bottom: 48px;
}

.article-list h2 {
  margin-bottom: 16px;
}

.article-row {
  padding: 24px 0;
  border-bottom: 1px solid var(--color-border);
}

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

.article-row h3 {
  font-size: 20px;
  margin-bottom: 8px;
}

.article-row h3 a {
  text-decoration: none;
}

.article-row h3 a:hover {
  text-decoration: underline;
}

.article-row p {
  margin-bottom: 8px;
}

.article-row a {
  font-size: 15px;
}

.insight-figure {
  margin-bottom: 48px;
}

.insight-figure figure {
  margin: 0;
}

.insight-figure img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
}

.insight-figure figcaption {
  font-size: 14px;
  margin-top: 8px;
  line-height: 1.6;
}

.continue-links {
  margin-bottom: 48px;
}

.continue-links h2 {
  margin-bottom: 12px;
}

.continue-links p {
  margin-bottom: 16px;
}

.link-group {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.link-group a {
  font-weight: 700;
}

/* ============================================================
   Pages · 关于页 (guanyu)
   ============================================================ */
.page-guanyu .page-layout {
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(0, 1fr);
  gap: 32px;
  align-items: start;
}

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

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

.about-content .section-block h2 {
  margin-bottom: 16px;
}

.col-text p {
  margin-bottom: 12px;
}

.boundary-list,
.audience-list {
  list-style: none;
}

.boundary-list li,
.audience-list li {
  padding: 16px 0;
  border-bottom: 1px solid var(--color-border);
}

.boundary-list li:last-child,
.audience-list li:last-child {
  border-bottom: 0;
}

.boundary-list li h3,
.audience-list li h3 {
  font-size: 17px;
  margin-bottom: 4px;
}

.boundary-list li p,
.audience-list li p {
  margin-bottom: 0;
  font-size: 15px;
}

.keyword-list {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  list-style: none;
  margin-top: 12px;
}

.keyword-list li {
  padding: 4px 14px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 999px;
  font-size: 14px;
  font-weight: 700;
}

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

.about-figure img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
}

.about-figure figcaption {
  font-size: 14px;
  margin-top: 8px;
  line-height: 1.6;
}

.sidebar {
  min-width: 0;
}

.sidebar-block {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 24px;
  margin-bottom: 24px;
}

.sidebar-block h2 {
  font-size: 18px;
  margin-bottom: 12px;
  color: var(--color-primary);
}

/* ============================================================
   Pages · 联系页 (lianxi)
   ============================================================ */
.page-lianxi .layout-shell {
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(0, 1fr);
  gap: 32px;
  align-items: start;
}

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

.contact-guide-section,
.self-check-section,
.communication-flow-section,
.faq-section,
.other-entry-section {
  margin-bottom: 48px;
}

.contact-guide-section h2,
.self-check-section h2,
.communication-flow-section h2,
.other-entry-section h2 {
  margin-bottom: 16px;
}

.guide-steps ol {
  list-style: none;
}

.guide-steps li {
  padding: 20px 0;
  border-bottom: 1px solid var(--color-border);
}

.guide-steps li:last-child {
  border-bottom: 0;
}

.guide-steps h3 {
  font-size: 18px;
  margin-bottom: 8px;
}

.check-list {
  list-style: none;
}

.check-list li {
  padding: 20px 0;
  border-bottom: 1px solid var(--color-border);
}

.check-list li:last-child {
  border-bottom: 0;
}

.check-list h3 {
  font-size: 18px;
  margin-bottom: 8px;
}

.communication-flow-section .content-figure {
  margin-bottom: 16px;
}

.other-entry-section .entry-links {
  list-style: none;
}

.other-entry-section .entry-links li {
  margin-bottom: 8px;
}

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

/* ============================================================
   Pages · 404 错误页
   ============================================================ */
.error-main {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 64px var(--gutter);
}

.error-section {
  text-align: center;
  max-width: 640px;
}

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

.error-section h1 {
  font-size: 28px;
  margin-bottom: 16px;
}

.error-section p {
  margin-bottom: 24px;
}

.error-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 24px;
}

.error-link {
  display: inline-block;
  padding: 10px 20px;
  background: var(--color-primary);
  color: var(--color-white);
  text-decoration: none;
  border-radius: var(--radius-md);
  font-weight: 700;
}

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

/* ============================================================
   Responsive · 响应式断点
   ============================================================ */
@media (max-width: 1024px) {
  .hero-inner {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
    padding: 48px var(--gutter);
  }

  .guide-steps {
    grid-template-columns: repeat(3, 1fr);
  }

  .delivery-steps .step-list {
    grid-template-columns: repeat(2, 1fr);
  }

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

@media (max-width: 768px) {
  :root {
    --gutter: 20px;
  }

  h1 {
    font-size: 28px;
  }

  h2 {
    font-size: 24px;
  }

  .header-inner {
    min-height: 60px;
  }

  .nav-toggle {
    display: flex;
  }

  .nav-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-white);
    border-bottom: 1px solid var(--color-border);
    flex-direction: column;
    padding: 8px 0;
    z-index: 100;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
  }

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

  .nav-menu li {
    width: 100%;
  }

  .nav-menu a {
    padding: 12px var(--gutter);
    border-radius: 0;
  }

  .main-nav {
    position: relative;
  }

  .hero-inner {
    grid-template-columns: 1fr;
    padding: 40px var(--gutter);
  }

  .hero-content {
    order: 1;
  }

  .hero-media {
    order: 2;
  }

  .story-inner {
    grid-template-columns: 1fr;
    padding: 48px var(--gutter);
    gap: 32px;
  }

  .page-layout {
    grid-template-columns: 1fr;
  }

  .example-wrap {
    grid-template-columns: 1fr;
  }

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

  .layout-shell {
    grid-template-columns: 1fr;
  }

  .two-col-text {
    grid-template-columns: 1fr;
    gap: 16px;
  }

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

  .page-guanyu .page-layout {
    grid-template-columns: 1fr;
  }

  .page-lianxi .layout-shell {
    grid-template-columns: 1fr;
  }

  .footer-inner {
    grid-template-columns: 1fr;
    padding: 32px var(--gutter) 16px;
  }

  .topbar-inner {
    flex-direction: column;
    gap: 4px;
    padding: 8px var(--gutter);
  }

  .breadcrumb {
    margin-top: 16px;
  }

  .related-links {
    padding: 16px var(--gutter);
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }
}

@media (max-width: 480px) {
  :root {
    --gutter: 16px;
  }

  h1 {
    font-size: 24px;
  }

  h2 {
    font-size: 22px;
  }

  h3 {
    font-size: 18px;
  }

  .hero-inner {
    padding: 32px var(--gutter);
  }

  .story-inner {
    padding: 32px var(--gutter);
  }

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

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

  .hero-actions .btn {
    text-align: center;
  }

  .scenario-cell {
    padding: 16px;
  }

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

  .anchor-link {
    text-align: center;
  }

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

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

  .error-code {
    font-size: 48px;
  }

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

  .error-link {
    text-align: center;
  }

  .footer-bottom {
    padding: 12px var(--gutter) 20px;
  }

  .topbar-links {
    gap: 12px;
  }
}