/* ============================================================
   51吃瓜网在线吃瓜 - 整站样式表
   视觉方向：社区市集风多色分类
   主色 #11324D / 强调橙 #E87A3E / 辅蓝 #2E86AB
   分类绿 #8BC34A / 分类黄 #F1C40F / 分类紫 #9B59B6
   ============================================================ */

/* ============================================================
   1. BASE 基础样式
   ============================================================ */
*, *::before, *::after {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.75;
  color: #2b3a47;
  background-color: #f7f8fa;
}

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

a {
  color: #11324D;
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: #E87A3E;
}

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

h1, h2, h3, h4, h5, h6 {
  margin: 0;
  font-family: "PingFang SC", "Microsoft YaHei", sans-serif;
  font-weight: 700;
  color: #11324D;
  line-height: 1.4;
}

p {
  margin: 0 0 1em;
}

figure {
  margin: 0;
}

details summary {
  cursor: pointer;
}

/* ============================================================
   2. LAYOUT 布局骨架（全站统一）
   ============================================================ */

/* 全站统一容器宽度 */
.header-inner,
.footer-inner,
.hero-inner,
.layout-shell,
.page-layout,
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding-left: 24px;
  padding-right: 24px;
  width: 100%;
}

/* 页面主体骨架 */
.site-body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.site-main {
  flex: 1 0 auto;
}

.site-home {
  background-color: #f7f8fa;
}

.site-inner {
  background-color: #f7f8fa;
}

/* ============================================================
   3. HEADER 页头导航（全站统一）
   ============================================================ */
.site-header {
  background-color: #11324D;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 8px rgba(17, 50, 77, 0.18);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 68px;
  gap: 24px;
}

.brand {
  flex-shrink: 0;
}

.brand-link {
  display: flex;
  flex-direction: column;
  line-height: 1.3;
}

.brand-name {
  font-size: 22px;
  font-weight: 700;
  color: #ffffff;
  letter-spacing: 0.01em;
}

.brand-tagline {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.72);
  margin-top: 2px;
}

.brand-link:hover .brand-name {
  color: #F1C40F;
}

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

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

.nav-item {
  position: relative;
}

.nav-link {
  display: block;
  padding: 10px 16px;
  font-size: 15px;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.86);
  border-radius: 4px;
  transition: background-color 0.2s ease, color 0.2s ease;
}

.nav-link:hover {
  color: #ffffff;
  background-color: rgba(255, 255, 255, 0.1);
}

.nav-link.is-current {
  color: #ffffff;
  background-color: rgba(232, 122, 62, 0.85);
}

/* 移动端汉堡按钮 */
.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 10px;
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.4);
  border-radius: 6px;
  cursor: pointer;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
}

.toggle-bar {
  display: block;
  width: 22px;
  height: 2px;
  background-color: #ffffff;
  border-radius: 1px;
  transition: transform 0.3s ease, opacity 0.3s ease;
}

.nav-toggle[aria-expanded="true"] .toggle-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .toggle-bar:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] .toggle-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ============================================================
   4. FOOTER 页脚（全站统一）
   ============================================================ */
.site-footer {
  background-color: #11324D;
  color: rgba(255, 255, 255, 0.78);
  margin-top: auto;
}

.footer-inner {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 40px;
  padding-top: 48px;
  padding-bottom: 40px;
}

.footer-col h3.footer-title {
  font-size: 16px;
  color: #ffffff;
  margin-bottom: 16px;
  position: relative;
  padding-bottom: 8px;
}

.footer-col h3.footer-title::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 28px;
  height: 2px;
  background-color: #E87A3E;
}

.footer-links li {
  margin-bottom: 10px;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.72);
  font-size: 14px;
  transition: color 0.2s ease, padding-left 0.2s ease;
}

.footer-links a:hover {
  color: #F1C40F;
  padding-left: 4px;
}

.footer-desc {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.55);
  line-height: 1.7;
  margin-top: 12px;
}

.footer-link-btn {
  display: inline-block;
  margin-top: 8px;
  font-size: 14px;
  color: #F1C40F;
  border-bottom: 1px solid rgba(241, 196, 15, 0.5);
  padding-bottom: 2px;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding: 18px 24px;
  text-align: center;
}

.copyright {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.5);
  margin: 0;
}

/* ============================================================
   5. 面包屑（全站统一）
   ============================================================ */
.breadcrumb {
  font-size: 14px;
  margin-bottom: 20px;
  color: #7a8894;
}

.breadcrumb a {
  color: #2E86AB;
}

.breadcrumb a:hover {
  color: #E87A3E;
}

.breadcrumb-sep {
  margin: 0 8px;
  color: #aab4bd;
}

.breadcrumb-current {
  color: #5a6b78;
}

/* 顶部面包屑导航（部分页面） */
.breadcrumb-nav {
  background-color: #eef1f4;
  border-bottom: 1px solid #e2e6ea;
}

.breadcrumb-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 10px 24px;
}

.breadcrumb-list {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: #6b7a87;
}

.breadcrumb-item a {
  color: #2E86AB;
}

.breadcrumb-item a:hover {
  color: #E87A3E;
}

.breadcrumb-item[aria-current="page"] {
  color: #4a5a67;
}

/* ============================================================
   6. 内页统一骨架
   ============================================================ */
.inner-main {
  padding: 32px 24px 56px;
}

/* 内页标题区 */
.page-header {
  margin-bottom: 12px;
}

.page-title {
  font-size: 32px;
  color: #11324D;
  margin-bottom: 8px;
}

.page-desc {
  font-size: 15px;
  color: #5a6b78;
  max-width: 720px;
  margin-bottom: 0;
}

.page-title-area {
  border-bottom: 2px solid #eef1f4;
  padding-bottom: 20px;
  margin-bottom: 28px;
}

.page-title-inner {
  max-width: 1200px;
}

/* 通用 section 标题 */
.section-title {
  font-size: 24px;
  color: #11324D;
  margin-bottom: 12px;
}

.section-desc {
  font-size: 15px;
  color: #6b7a87;
  margin-bottom: 24px;
  max-width: 720px;
}

/* ============================================================
   7. 首页组件
   ============================================================ */

/* 7.1 Hero 首屏 */
.hero-section {
  background-color: #11324D;
  padding: 56px 0 64px;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 48px;
  align-items: center;
}

.hero-title {
  font-size: 36px;
  color: #ffffff;
  line-height: 1.35;
  margin-bottom: 16px;
}

.hero-subtitle {
  font-size: 17px;
  color: rgba(255, 255, 255, 0.82);
  margin-bottom: 28px;
  max-width: 520px;
}

.hero-questions {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.question-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: #ffffff;
  font-size: 15px;
  padding: 10px 16px;
  background-color: rgba(255, 255, 255, 0.1);
  border-radius: 6px;
  border-left: 3px solid #E87A3E;
  transition: background-color 0.2s ease, transform 0.2s ease;
}

.question-link::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: #F1C40F;
  flex-shrink: 0;
}

.question-link:hover {
  background-color: rgba(255, 255, 255, 0.18);
  color: #F1C40F;
  transform: translateX(4px);
}

.hero-media {
  display: flex;
  justify-content: center;
}

.hero-image {
  width: 100%;
  max-width: 460px;
  height: auto;
  border-radius: 8px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
}

/* 7.2 首页通用 section 容器 */
.home-main .section-header {
  margin-bottom: 28px;
}

.home-main .section-header .section-title {
  font-size: 26px;
}

.home-main .section-header .section-desc {
  color: #6b7a87;
  font-size: 15px;
  max-width: 640px;
}

.classify-section,
.solution-section,
.boundary-section,
.faq-entry-section {
  padding: 56px 0;
}

.process-section {
  background-color: #eef1f4;
  padding: 56px 0;
}

.classify-section {
  background-color: #ffffff;
}

.solution-section {
  background-color: #f7f8fa;
}

.boundary-section {
  background-color: #ffffff;
}

.faq-entry-section {
  background-color: #f7f8fa;
}

/* 7.3 需求分类矩阵 */
.classify-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.classify-card {
  background-color: #ffffff;
  border: 1px solid #e6eaee;
  border-radius: 8px;
  padding: 24px 20px;
  transition: box-shadow 0.25s ease, transform 0.25s ease;
  display: flex;
  flex-direction: column;
}

.classify-card:hover {
  box-shadow: 0 6px 18px rgba(17, 50, 77, 0.1);
  transform: translateY(-3px);
}

.card-icon {
  width: 44px;
  height: 44px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 14px;
  font-size: 20px;
  color: #ffffff;
}

.classify-card:nth-child(1) .card-icon { background-color: #2E86AB; }
.classify-card:nth-child(2) .card-icon { background-color: #8BC34A; }
.classify-card:nth-child(3) .card-icon { background-color: #F1C40F; }
.classify-card:nth-child(4) .card-icon { background-color: #9B59B6; }
.classify-card:nth-child(5) .card-icon { background-color: #E87A3E; }
.classify-card:nth-child(6) .card-icon { background-color: #11324D; }

.card-title {
  font-size: 18px;
  margin-bottom: 8px;
  color: #11324D;
}

.card-desc {
  font-size: 14px;
  color: #5a6b78;
  line-height: 1.65;
  margin-bottom: 14px;
  flex-grow: 1;
}

.card-link {
  font-size: 14px;
  font-weight: 600;
  color: #2E86AB;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.card-link::after {
  content: "→";
  transition: transform 0.2s ease;
}

.card-link:hover {
  color: #E87A3E;
}

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

/* 7.4 服务流程纵线 */
.process-timeline {
  display: flex;
  flex-direction: column;
  gap: 0;
  max-width: 800px;
  margin: 0 auto;
  position: relative;
}

.process-timeline::before {
  content: "";
  position: absolute;
  left: 24px;
  top: 10px;
  bottom: 10px;
  width: 2px;
  background-color: #d5dde3;
}

.process-step {
  display: flex;
  gap: 24px;
  padding: 12px 0 28px;
  position: relative;
}

.process-step .step-number {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background-color: #11324D;
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 700;
  flex-shrink: 0;
  z-index: 1;
  border: 3px solid #eef1f4;
}

.process-step:nth-child(2) .step-number { background-color: #2E86AB; }
.process-step:nth-child(3) .step-number { background-color: #E87A3E; }
.process-step:nth-child(4) .step-number { background-color: #8BC34A; }

.step-content {
  padding-top: 4px;
}

.step-content .step-title {
  font-size: 18px;
  color: #11324D;
  margin-bottom: 6px;
}

.step-content .step-desc {
  font-size: 14px;
  color: #5a6b78;
  line-height: 1.7;
  max-width: 560px;
}

/* 7.5 解法参考摘要 */
.solution-preview {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.solution-preview .solution-card {
  background-color: #ffffff;
  border: 1px solid #e6eaee;
  border-radius: 8px;
  padding: 24px;
  transition: box-shadow 0.25s ease;
}

.solution-preview .solution-card:hover {
  box-shadow: 0 6px 18px rgba(17, 50, 77, 0.1);
}

.solution-preview .solution-img {
  width: 100%;
  height: 180px;
  object-fit: cover;
  border-radius: 6px;
  margin-bottom: 16px;
}

.solution-preview .solution-title {
  font-size: 18px;
  color: #11324D;
  margin-bottom: 8px;
}

.solution-preview .solution-bg {
  font-size: 14px;
  color: #5a6b78;
  line-height: 1.7;
  margin-bottom: 8px;
}

.solution-preview .solution-point {
  font-size: 14px;
  color: #2E86AB;
  line-height: 1.7;
  margin-bottom: 12px;
}

.solution-preview .solution-link {
  font-size: 14px;
  font-weight: 600;
  color: #E87A3E;
}

.solution-preview .solution-link:hover {
  color: #11324D;
}

/* 7.6 服务边界摘要 */
.boundary-note {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-bottom: 20px;
}

.boundary-col {
  background-color: #f7f8fa;
  border-radius: 8px;
  padding: 24px;
  border-top: 3px solid #8BC34A;
}

.boundary-col:last-child {
  border-top-color: #E87A3E;
}

.boundary-title {
  font-size: 17px;
  color: #11324D;
  margin-bottom: 12px;
}

.boundary-list li {
  font-size: 14px;
  color: #5a6b78;
  padding: 6px 0;
  padding-left: 18px;
  position: relative;
  line-height: 1.65;
}

.boundary-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 14px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: #8BC34A;
}

.boundary-col:last-child .boundary-list li::before {
  background-color: #E87A3E;
}

.boundary-link {
  display: inline-block;
  font-size: 15px;
  font-weight: 600;
  color: #2E86AB;
  padding: 8px 0;
}

.boundary-link:hover {
  color: #E87A3E;
}

/* 7.7 高频问题入口 */
.faq-entry-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  max-width: 720px;
}

.faq-entry-link {
  display: flex;
  align-items: center;
  gap: 12px;
  background-color: #ffffff;
  border: 1px solid #e6eaee;
  border-radius: 6px;
  padding: 14px 20px;
  font-size: 15px;
  color: #11324D;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.faq-entry-link::before {
  content: "Q";
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background-color: #11324D;
  color: #F1C40F;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 700;
  flex-shrink: 0;
}

.faq-entry-link:hover {
  border-color: #E87A3E;
  box-shadow: 0 3px 10px rgba(17, 50, 77, 0.08);
}

/* ============================================================
   8. 内页组件
   ============================================================ */

/* 8.1 内页布局壳 */
.layout-shell {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 40px;
  padding-top: 32px;
  padding-bottom: 56px;
  align-items: start;
}

.page-layout {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 40px;
  padding-top: 32px;
  padding-bottom: 56px;
  align-items: start;
}

/* 8.2 右侧栏（通用） */
.aside-nav,
.sidebar,
.sidebar-right,
.page-aside {
  position: sticky;
  top: 88px;
}

.aside-inner,
.sidebar-card,
.sidebar-block,
.aside-inner {
  background-color: #ffffff;
  border: 1px solid #e6eaee;
  border-radius: 8px;
  padding: 24px;
}

.aside-title,
.sidebar-title {
  font-size: 17px;
  color: #11324D;
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 2px solid #eef1f4;
  position: relative;
}

.aside-title::after,
.sidebar-title::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 32px;
  height: 2px;
  background-color: #E87A3E;
}

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

.aside-list a,
.aside-links a,
.sidebar-links a {
  display: block;
  font-size: 14px;
  color: #2E86AB;
  padding: 6px 10px;
  border-radius: 4px;
  transition: background-color 0.2s ease, color 0.2s ease;
}

.aside-list a:hover,
.aside-links a:hover,
.sidebar-links a:hover {
  background-color: #eef4f7;
  color: #E87A3E;
}

.aside-note {
  font-size: 13px;
  color: #7a8894;
  line-height: 1.7;
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px solid #eef1f4;
}

.aside-tip,
.sidebar-note-text {
  font-size: 13px;
  color: #7a8894;
  line-height: 1.7;
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px solid #eef1f4;
}

/* ============================================================
   9. 需求分类页
   ============================================================ */
.category-section {
  margin-bottom: 40px;
}

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

.section-intro {
  font-size: 15px;
  color: #6b7a87;
  margin-bottom: 24px;
  max-width: 720px;
}

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

.category-card {
  background-color: #ffffff;
  border: 1px solid #e6eaee;
  border-radius: 8px;
  overflow: hidden;
  transition: box-shadow 0.25s ease;
  display: flex;
  flex-direction: column;
}

.category-card:hover {
  box-shadow: 0 6px 18px rgba(17, 50, 77, 0.1);
}

.category-image {
  width: 100%;
  height: 160px;
  object-fit: cover;
}

.category-card-body {
  padding: 20px;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}

.category-name {
  font-size: 18px;
  color: #11324D;
  margin-bottom: 8px;
}

.category-scene {
  font-size: 14px;
  color: #5a6b78;
  line-height: 1.7;
  margin-bottom: 10px;
}

.category-solution {
  font-size: 14px;
  color: #5a6b78;
  line-height: 1.7;
  margin-bottom: 14px;
}

.category-solution strong {
  color: #2E86AB;
  font-weight: 600;
}

.category-link {
  display: inline-block;
  font-size: 14px;
  font-weight: 600;
  color: #E87A3E;
  margin-top: auto;
}

.category-link:hover {
  color: #11324D;
}

.howto-section {
  background-color: #eef1f4;
  border-radius: 8px;
  padding: 28px;
  margin-bottom: 40px;
}

.howto-section .section-title {
  font-size: 20px;
  margin-bottom: 12px;
}

.howto-content p {
  font-size: 14px;
  color: #5a6b78;
  line-height: 1.75;
  margin-bottom: 10px;
  max-width: 720px;
}

/* ============================================================
   10. 解法参考页
   ============================================================ */
.page-heading {
  margin-bottom: 24px;
}

.page-heading-inner {
  max-width: 1200px;
}

.page-intro {
  font-size: 15px;
  color: #6b7a87;
  max-width: 720px;
}

.solution-index {
  background-color: #ffffff;
  border: 1px solid #e6eaee;
  border-radius: 8px;
  padding: 24px;
  margin-bottom: 32px;
}

.solution-index .section-title {
  font-size: 20px;
  margin-bottom: 6px;
}

.solution-index .section-desc {
  font-size: 14px;
  color: #6b7a87;
  margin-bottom: 16px;
}

.solution-index-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
}

.index-item a {
  display: block;
  font-size: 14px;
  color: #2E86AB;
  padding: 10px 14px;
  background-color: #f7f8fa;
  border-radius: 6px;
  transition: background-color 0.2s ease, color 0.2s ease;
}

.index-item a:hover {
  background-color: #11324D;
  color: #ffffff;
}

/* 解法卡片 */
.jiefacankao .solution-card {
  background-color: #ffffff;
  border: 1px solid #e6eaee;
  border-radius: 8px;
  margin-bottom: 32px;
  overflow: hidden;
}

.solution-card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 28px;
  background-color: #f7f8fa;
  border-bottom: 1px solid #e6eaee;
}

.solution-title {
  font-size: 20px;
  color: #11324D;
}

.solution-tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  color: #ffffff;
  background-color: #2E86AB;
  padding: 4px 12px;
  border-radius: 20px;
}

.solution-figure {
  padding: 20px 28px 0;
}

.solution-figure img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  border-radius: 6px;
}

.solution-body {
  padding: 20px 28px 28px;
}

.solution-subtitle {
  font-size: 16px;
  color: #11324D;
  margin: 20px 0 8px;
}

.solution-text {
  font-size: 14px;
  color: #5a6b78;
  line-height: 1.75;
  margin-bottom: 12px;
}

.solution-steps {
  list-style: decimal;
  padding-left: 20px;
  margin-bottom: 12px;
}

.solution-steps li {
  font-size: 14px;
  color: #5a6b78;
  line-height: 1.75;
  padding-left: 4px;
  margin-bottom: 4px;
}

.solution-points {
  list-style: none;
  margin-bottom: 12px;
}

.solution-points li {
  font-size: 14px;
  color: #5a6b78;
  line-height: 1.75;
  padding: 4px 0 4px 18px;
  position: relative;
}

.solution-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 14px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background-color: #8BC34A;
}

.solution-related {
  font-size: 14px;
  color: #7a8894;
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px solid #eef1f4;
}

.solution-related a {
  color: #2E86AB;
  font-weight: 600;
}

.solution-related a:hover {
  color: #E87A3E;
}

/* 下一步提示 */
.next-step-note {
  background-color: #11324D;
  border-radius: 8px;
  padding: 28px;
  margin-bottom: 24px;
}

.next-step-title {
  font-size: 20px;
  color: #ffffff;
  margin-bottom: 8px;
}

.next-step-text {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: 16px;
}

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

.text-link {
  font-size: 14px;
  font-weight: 600;
  color: #F1C40F;
  border-bottom: 1px solid rgba(241, 196, 15, 0.5);
  padding-bottom: 2px;
}

.text-link:hover {
  color: #ffffff;
  border-bottom-color: #ffffff;
}

/* 相关链接 */
.related-links {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 32px;
}

.related-links-label {
  font-size: 14px;
  font-weight: 600;
  color: #11324D;
}

.related-links-item {
  font-size: 13px;
  color: #2E86AB;
  background-color: #eef4f7;
  border-radius: 20px;
  padding: 5px 14px;
  transition: background-color 0.2s ease, color 0.2s ease;
}

.related-links-item:hover {
  background-color: #11324D;
  color: #ffffff;
}

/* 侧栏（解法参考页） */
.sidebar-block {
  margin-bottom: 20px;
}

.sidebar-text {
  font-size: 13px;
  color: #7a8894;
  line-height: 1.7;
  margin-top: 12px;
}

/* ============================================================
   11. 合作路径页
   ============================================================ */
.page-title-block {
  background-color: #eef1f4;
  border-bottom: 1px solid #e2e6ea;
  padding: 18px 0;
}

.page-title-desc {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  font-size: 14px;
  color: #5a6b78;
}

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

.section-lead {
  font-size: 15px;
  color: #6b7a87;
  margin-bottom: 28px;
  max-width: 720px;
}

/* 时间线 */
.hezuolujing .process-timeline {
  max-width: 100%;
  margin: 0;
}

.timeline-item {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 24px;
  padding: 20px 0;
  border-bottom: 1px solid #eef1f4;
  position: relative;
}

.timeline-item:last-child {
  border-bottom: none;
}

.timeline-marker {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.timeline-marker .step-number {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background-color: #11324D;
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  font-weight: 700;
}

.timeline-item:nth-child(2) .step-number { background-color: #2E86AB; }
.timeline-item:nth-child(3) .step-number { background-color: #E87A3E; }
.timeline-item:nth-child(4) .step-number { background-color: #8BC34A; }

.timeline-marker .step-title {
  font-size: 17px;
  color: #11324D;
}

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

.step-side-title {
  font-size: 14px;
  font-weight: 600;
  color: #11324D;
  margin-bottom: 6px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.step-side-title::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 2px;
  background-color: #2E86AB;
  flex-shrink: 0;
}

.step-side:nth-child(2) .step-side-title::before {
  background-color: #E87A3E;
}

.step-side-text {
  font-size: 14px;
  color: #5a6b78;
  line-height: 1.7;
}

/* 媒体块 */
.media-block {
  margin: 32px 0;
}

.process-figure {
  background-color: #ffffff;
  border: 1px solid #e6eaee;
  border-radius: 8px;
  overflow: hidden;
}

.process-image {
  width: 100%;
  height: 260px;
  object-fit: cover;
}

.figure-caption {
  font-size: 13px;
  color: #7a8894;
  padding: 12px 20px;
  text-align: center;
  border-top: 1px solid #eef1f4;
}

/* CTA 提示 */
.cta-note {
  background-color: #eef1f4;
  border-radius: 8px;
  padding: 28px;
  margin-top: 32px;
}

.cta-title {
  font-size: 20px;
  color: #11324D;
  margin-bottom: 8px;
}

.cta-text {
  font-size: 14px;
  color: #5a6b78;
  margin-bottom: 16px;
}

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

.cta-link {
  display: inline-block;
  font-size: 14px;
  font-weight: 600;
  color: #ffffff;
  background-color: #E87A3E;
  padding: 10px 20px;
  border-radius: 6px;
  transition: background-color 0.2s ease;
}

.cta-link:hover {
  background-color: #11324D;
  color: #ffffff;
}

/* ============================================================
   12. 服务边界页
   ============================================================ */
.fuwubianjie .page-content {
  min-width: 0;
}

.boundary-intro {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 28px;
  align-items: center;
  margin-bottom: 40px;
}

.boundary-figure img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  border-radius: 8px;
}

.boundary-lead p {
  font-size: 15px;
  color: #5a6b78;
  line-height: 1.75;
  margin-bottom: 12px;
}

.boundary-compare {
  margin-bottom: 40px;
}

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

.compare-col {
  background-color: #ffffff;
  border: 1px solid #e6eaee;
  border-radius: 8px;
  overflow: hidden;
}

.compare-do {
  border-top: 3px solid #8BC34A;
}

.compare-not {
  border-top: 3px solid #E87A3E;
}

.compare-heading {
  font-size: 17px;
  font-weight: 700;
  color: #11324D;
  padding: 16px 20px;
  background-color: #f7f8fa;
  border-bottom: 1px solid #e6eaee;
}

.compare-list {
  padding: 16px 20px;
}

.compare-item {
  padding: 10px 0;
  border-bottom: 1px solid #f0f2f4;
}

.compare-item:last-child {
  border-bottom: none;
}

.compare-item-title {
  font-size: 14px;
  font-weight: 600;
  color: #11324D;
  margin-bottom: 4px;
}

.compare-item-desc {
  font-size: 13px;
  color: #6b7a87;
  line-height: 1.65;
}

/* 合作规范 */
.norms-section {
  background-color: #ffffff;
  border: 1px solid #e6eaee;
  border-radius: 8px;
  padding: 28px;
  margin-bottom: 40px;
}

.norms-section .section-title {
  font-size: 22px;
  margin-bottom: 6px;
}

.norms-section .section-desc {
  font-size: 14px;
  color: #6b7a87;
  margin-bottom: 20px;
}

.norms-list {
  counter-reset: norm-counter;
}

.norm-item {
  counter-increment: norm-counter;
  padding: 14px 0 14px 48px;
  position: relative;
  border-bottom: 1px solid #f0f2f4;
}

.norm-item:last-child {
  border-bottom: none;
}

.norm-item::before {
  content: counter(norm-counter);
  position: absolute;
  left: 0;
  top: 14px;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background-color: #11324D;
  color: #F1C40F;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 700;
}

.norm-title {
  font-size: 15px;
  font-weight: 600;
  color: #11324D;
  margin-bottom: 4px;
}

.norm-desc {
  font-size: 14px;
  color: #5a6b78;
  line-height: 1.7;
}

/* 下一步 */
.next-steps {
  background-color: #eef1f4;
  border-radius: 8px;
  padding: 28px;
}

.next-steps .section-title {
  font-size: 20px;
  margin-bottom: 6px;
}

.next-desc {
  font-size: 14px;
  color: #5a6b78;
  margin-bottom: 16px;
}

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

.next-link {
  display: inline-block;
  font-size: 14px;
  font-weight: 600;
  color: #ffffff;
  background-color: #2E86AB;
  padding: 10px 20px;
  border-radius: 6px;
  transition: background-color 0.2s ease;
}

.next-link:hover {
  background-color: #11324D;
  color: #ffffff;
}

/* ============================================================
   13. 问答集页
   ============================================================ */
.faq-intro {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 28px;
  align-items: center;
  margin-bottom: 36px;
}

.faq-figure img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-radius: 8px;
}

.faq-lead {
  font-size: 15px;
  color: #5a6b78;
  line-height: 1.75;
}

.faq-group-block {
  margin-bottom: 32px;
}

.faq-group-title {
  font-size: 20px;
  color: #11324D;
  padding-bottom: 10px;
  border-bottom: 2px solid #11324D;
  margin-bottom: 16px;
  position: relative;
}

.faq-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.faq-item {
  background-color: #ffffff;
  border: 1px solid #e6eaee;
  border-radius: 6px;
  overflow: hidden;
}

.faq-question {
  font-size: 15px;
  font-weight: 600;
  color: #11324D;
  padding: 16px 20px;
  background-color: #f7f8fa;
  cursor: pointer;
  position: relative;
  padding-right: 44px;
  transition: background-color 0.2s ease;
}

.faq-question::after {
  content: "+";
  position: absolute;
  right: 18px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 20px;
  color: #E87A3E;
  font-weight: 400;
}

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

.faq-item[open] .faq-question {
  background-color: #eef4f7;
}

.faq-answer {
  padding: 16px 20px;
  border-top: 1px solid #eef1f4;
}

.faq-answer p {
  font-size: 14px;
  color: #5a6b78;
  line-height: 1.75;
  margin-bottom: 8px;
}

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

/* ============================================================
   14. 404 页面
   ============================================================ */
.error-main {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 60vh;
  padding: 48px 24px;
}

.error-section {
  text-align: center;
  max-width: 480px;
}

.error-code {
  font-size: 72px;
  font-weight: 700;
  color: #11324D;
  line-height: 1;
  margin-bottom: 12px;
}

.error-title {
  font-size: 24px;
  color: #11324D;
  margin-bottom: 12px;
}

.error-desc {
  font-size: 15px;
  color: #5a6b78;
  margin-bottom: 8px;
}

.error-advice {
  font-size: 14px;
  color: #7a8894;
  margin-bottom: 24px;
}

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

.error-link {
  display: inline-block;
  font-size: 15px;
  font-weight: 600;
  color: #ffffff;
  background-color: #11324D;
  padding: 12px 24px;
  border-radius: 6px;
  transition: background-color 0.2s ease;
}

.error-link:hover {
  background-color: #E87A3E;
  color: #ffffff;
}

/* ============================================================
   15. 动效增强（不阻塞初始可见性）
   ============================================================ */
.classify-card,
.solution-preview .solution-card,
.category-card,
.timeline-item {
  transition: box-shadow 0.25s ease, transform 0.25s ease;
}

/* 滚动渐显动画（不影响初始可见性，默认可见） */
.home-main .classify-card,
.home-main .process-step,
.home-main .solution-preview .solution-card,
.home-main .boundary-col,
.home-main .faq-entry-link {
  animation: fadeInUp 0.5s ease both;
}

.home-main .classify-card:nth-child(2) { animation-delay: 0.06s; }
.home-main .classify-card:nth-child(3) { animation-delay: 0.12s; }
.home-main .classify-card:nth-child(4) { animation-delay: 0.18s; }
.home-main .classify-card:nth-child(5) { animation-delay: 0.24s; }
.home-main .classify-card:nth-child(6) { animation-delay: 0.3s; }
.home-main .process-step:nth-child(2) { animation-delay: 0.08s; }
.home-main .process-step:nth-child(3) { animation-delay: 0.16s; }
.home-main .process-step:nth-child(4) { animation-delay: 0.24s; }

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(14px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ============================================================
   16. RESPONSIVE 响应式
   ============================================================ */

/* 平板 */
@media (max-width: 1024px) {
  .classify-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .layout-shell,
  .page-layout {
    grid-template-columns: 1fr 260px;
    gap: 28px;
  }

  .hero-inner {
    gap: 32px;
  }

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

  .footer-inner {
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
  }

  .boundary-intro,
  .faq-intro {
    grid-template-columns: 1fr;
  }

  .boundary-figure img,
  .faq-figure img {
    height: 200px;
  }
}

/* 手机端 */
@media (max-width: 768px) {
  .header-inner {
    min-height: 60px;
    padding-left: 16px;
    padding-right: 16px;
  }

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

  .brand-tagline {
    font-size: 11px;
  }

  /* 汉堡按钮显示 */
  .nav-toggle {
    display: flex;
  }

  /* 导航列表默认收起 */
  .main-nav {
    position: absolute;
    top: 60px;
    left: 0;
    right: 0;
    background-color: #11324D;
    border-top: 1px solid rgba(255, 255, 255, 0.12);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.2);
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
    z-index: 99;
  }

  .nav-list {
    flex-direction: column;
    align-items: stretch;
    padding: 8px 16px 16px;
    gap: 2px;
  }

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

  .main-nav.is-open {
    max-height: 420px;
  }

  .nav-link {
    padding: 12px 16px;
    font-size: 15px;
    border-radius: 6px;
  }

  .nav-link.is-current {
    background-color: rgba(232, 122, 62, 0.85);
  }

  /* 首页 */
  .hero-section {
    padding: 36px 0 40px;
  }

  .hero-inner {
    grid-template-columns: 1fr;
    gap: 24px;
    padding-left: 16px;
    padding-right: 16px;
  }

  .hero-title {
    font-size: 26px;
  }

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

  .hero-media {
    order: -1;
  }

  .hero-image {
    max-width: 100%;
  }

  .classify-section,
  .process-section,
  .solution-section,
  .boundary-section,
  .faq-entry-section {
    padding: 40px 0;
  }

  .classify-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .solution-preview {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .boundary-note {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .process-timeline::before {
    left: 20px;
  }

  .process-step {
    gap: 16px;
    padding: 10px 0 20px;
  }

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

  /* 内页 */
  .inner-main {
    padding: 20px 16px 40px;
  }

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

  .layout-shell,
  .page-layout {
    grid-template-columns: 1fr;
    gap: 0;
    padding-top: 20px;
    padding-bottom: 40px;
    padding-left: 16px;
    padding-right: 16px;
  }

  /* 手机端主内容在前，侧栏在后 */
  .layout-shell > main,
  .layout-shell > .main-content,
  .layout-shell > .page-content,
  .page-layout > main,
  .page-layout > .main-content,
  .page-layout > .page-content {
    order: 1;
  }

  .layout-shell > aside,
  .layout-shell > .sidebar,
  .layout-shell > .sidebar-right,
  .layout-shell > .page-aside,
  .page-layout > aside,
  .page-layout > .sidebar,
  .page-layout > .sidebar-right,
  .page-layout > .page-aside {
    order: 2;
    position: static;
    margin-top: 32px;
  }

  /* 需求分类页 */
  .category-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .category-image {
    height: 140px;
  }

  .howto-section {
    padding: 20px;
  }

  /* 解法参考页 */
  .solution-index-list {
    grid-template-columns: 1fr;
  }

  .solution-card-head {
    padding: 16px 20px;
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }

  .solution-figure {
    padding: 16px 20px 0;
  }

  .solution-figure img {
    height: 180px;
  }

  .solution-body {
    padding: 16px 20px 20px;
  }

  .next-step-note {
    padding: 20px;
  }

  .next-step-links {
    flex-direction: column;
    gap: 10px;
  }

  /* 合作路径页 */
  .timeline-item {
    grid-template-columns: 1fr;
    gap: 12px;
    padding: 16px 0;
  }

  .timeline-marker {
    flex-direction: row;
    align-items: center;
    gap: 12px;
  }

  .step-detail-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .process-image {
    height: 200px;
  }

  .cta-note {
    padding: 20px;
  }

  .cta-links {
    flex-direction: column;
    gap: 10px;
  }

  /* 服务边界页 */
  .boundary-intro {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .boundary-figure img {
    height: 180px;
  }

  .compare-table {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .norms-section {
    padding: 20px;
  }

  .next-links {
    flex-direction: column;
    gap: 10px;
  }

  /* 问答集页 */
  .faq-intro {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .faq-figure img {
    height: 180px;
  }

  .faq-question {
    font-size: 14px;
    padding: 14px 40px 14px 16px;
  }

  .faq-answer {
    padding: 14px 16px;
  }

  /* 页脚 */
  .footer-inner {
    grid-template-columns: 1fr;
    gap: 28px;
    padding-top: 36px;
    padding-bottom: 28px;
    padding-left: 16px;
    padding-right: 16px;
  }

  .footer-bottom {
    padding: 14px 16px;
  }

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

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

  .error-link {
    width: 100%;
    text-align: center;
  }

  /* 面包屑导航 */
  .breadcrumb-inner {
    padding: 8px 16px;
  }

  .breadcrumb-list {
    flex-wrap: wrap;
    gap: 4px;
    font-size: 12px;
  }
}

/* 小屏手机 */
@media (max-width: 390px) {
  .hero-title {
    font-size: 22px;
  }

  .question-link {
    font-size: 14px;
    padding: 8px 12px;
  }

  .section-title {
    font-size: 20px;
  }

  .card-title {
    font-size: 16px;
  }

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

  .footer-inner {
    gap: 24px;
  }
}

/* 程序验收反馈：移动端正文优先 */
@media (max-width: 768px) {
  .site-main :is(.page-content, .main-content, .content-main) {
    order: 1;
  }

  .site-main :is(aside, .sidebar) {
    order: 2;
  }
}