/* ============================================================
   吃瓜黑料517 · 全站样式表
   品牌橙 #F56C00 / 深蓝灰 #2F3849 / 背景 #F7F8FA / 正文 #333
   ============================================================ */

/* ------------------------------------------------------------
   1. Base —— 基础重置、字体、颜色、通用元素
   ------------------------------------------------------------ */
*,
*::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: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.7;
  color: #333333;
  background-color: #f7f8fa;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: #f56c00;
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: #d95c00;
}

ul,
ol {
  list-style: none;
}

h1,
h2,
h3,
h4 {
  color: #2f3849;
  line-height: 1.4;
  font-weight: 700;
}

h1 {
  font-size: 32px;
}

h2 {
  font-size: 24px;
}

h3 {
  font-size: 18px;
}

h4 {
  font-size: 16px;
}

p {
  margin: 0 0 12px;
}

/* 按钮基础 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 22px;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.5;
  border-radius: 6px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background-color 0.2s ease, border-color 0.2s ease,
    color 0.2s ease, transform 0.2s ease;
  text-align: center;
  min-height: 44px;
}

.btn-primary {
  background-color: #f56c00;
  color: #ffffff;
  border-color: #f56c00;
}

.btn-primary:hover {
  background-color: #d95c00;
  border-color: #d95c00;
  color: #ffffff;
}

.btn-outline {
  background-color: transparent;
  color: #f56c00;
  border-color: #f56c00;
}

.btn-outline:hover {
  background-color: #fff0e5;
  color: #d95c00;
  border-color: #d95c00;
}

.btn-secondary {
  background-color: #2f3849;
  color: #ffffff;
  border-color: #2f3849;
}

.btn-secondary:hover {
  background-color: #232b38;
  border-color: #232b38;
  color: #ffffff;
}

.btn-sm {
  padding: 6px 14px;
  font-size: 14px;
  min-height: 36px;
}

.btn-lg {
  padding: 14px 32px;
  font-size: 16px;
}

.btn-block {
  display: flex;
  width: 100%;
}

/* 文本链接 */
.text-link {
  display: inline-flex;
  align-items: center;
  font-weight: 600;
  font-size: 15px;
  color: #f56c00;
}

.text-link::after {
  content: "→";
  margin-left: 6px;
  transition: transform 0.2s ease;
}

.text-link:hover {
  color: #d95c00;
}

.text-link:hover::after {
  transform: translateX(3px);
}

/* ------------------------------------------------------------
   2. Layout —— 容器、页头、页脚、主结构
   ------------------------------------------------------------ */
.site-body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.site-header {
  background-color: #ffffff;
  border-bottom: 1px solid #eceded;
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: 24px;
}

.brand {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  flex-shrink: 0;
}

.brand-name {
  font-size: 20px;
  font-weight: 800;
  color: #2f3849;
  line-height: 1.3;
  letter-spacing: 0.5px;
}

.brand-tagline {
  font-size: 12px;
  color: #8a919f;
  line-height: 1.4;
  margin-top: 2px;
}

.main-nav.site-nav {
  flex: 1;
}

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

.nav-link {
  display: inline-block;
  padding: 8px 12px;
  font-size: 15px;
  font-weight: 500;
  color: #2f3849;
  border-radius: 4px;
  position: relative;
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 12px;
  right: 12px;
  bottom: 2px;
  height: 2px;
  background-color: #f56c00;
  border-radius: 1px;
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.2s ease;
}

.nav-link:hover {
  color: #f56c00;
}

.nav-link:hover::after {
  transform: scaleX(1);
}

.nav-link.is-current {
  color: #f56c00;
  font-weight: 600;
}

.nav-link.is-current::after {
  transform: scaleX(1);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  background: transparent;
  border: 1px solid #eceded;
  border-radius: 6px;
  cursor: pointer;
  padding: 10px;
}

.nav-toggle .bar {
  display: block;
  width: 20px;
  height: 2px;
  background-color: #2f3849;
  border-radius: 1px;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

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

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

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

/* 主内容区 */
.site-main {
  flex: 1;
  width: 100%;
}

.inner-main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 32px 24px 56px;
  width: 100%;
}

/* 面包屑 */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: #8a919f;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.breadcrumb a {
  color: #8a919f;
}

.breadcrumb a:hover {
  color: #f56c00;
}

.breadcrumb-sep {
  color: #c4c9d2;
  font-size: 12px;
}

.breadcrumb-current {
  color: #2f3849;
  font-weight: 500;
}

/* 页面标题区 */
.page-header {
  margin-bottom: 16px;
}

.page-title {
  font-size: 32px;
  font-weight: 800;
  color: #2f3849;
  line-height: 1.3;
}

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

.page-intro {
  font-size: 16px;
  color: #5a6270;
  line-height: 1.8;
  max-width: 760px;
  margin-bottom: 0;
}

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

.page-header-block .page-intro {
  margin-bottom: 0;
}

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

.page-head p {
  font-size: 16px;
  color: #5a6270;
  line-height: 1.8;
  max-width: 760px;
}

/* 页脚 */
.site-footer {
  background-color: #2f3849;
  color: #b8bfca;
  margin-top: auto;
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 48px 24px 32px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}

.footer-col h4 {
  color: #ffffff;
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 16px;
}

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

.footer-col ul li a {
  color: #b8bfca;
  font-size: 14px;
  transition: color 0.2s ease;
}

.footer-col ul li a:hover {
  color: #ffffff;
}

.footer-bottom {
  border-top: 1px solid #3e4857;
  padding: 20px 24px;
  text-align: center;
}

.footer-bottom p {
  max-width: 1200px;
  margin: 0 auto;
  font-size: 13px;
  color: #8a919f;
  line-height: 1.6;
}

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

/* 区块标题 */
.section-header {
  margin-bottom: 32px;
}

.section-header h2 {
  font-size: 26px;
  margin-bottom: 8px;
}

.section-desc {
  font-size: 15px;
  color: #5a6270;
  max-width: 700px;
}

.section-footer {
  margin-top: 32px;
  display: flex;
  gap: 16px;
  align-items: center;
  flex-wrap: wrap;
}

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

.sidebar-card {
  background-color: #ffffff;
  border: 1px solid #eceded;
  border-radius: 8px;
  padding: 24px;
  margin-bottom: 24px;
}

.sidebar-card h2 {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid #f0f1f3;
}

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

.sidebar-links li a {
  display: block;
  padding: 6px 0;
  font-size: 14px;
  color: #4a5260;
  border-bottom: 1px solid #f5f6f8;
  transition: color 0.2s ease, padding-left 0.2s ease;
}

.sidebar-links li a:hover {
  color: #f56c00;
  padding-left: 4px;
}

.sidebar-cta p {
  font-size: 14px;
  color: #5a6270;
  margin-bottom: 16px;
}

.sidebar-cta .btn {
  margin-bottom: 10px;
  width: 100%;
}

.sidebar-list li {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  color: #4a5260;
  line-height: 1.6;
  margin-bottom: 10px;
}

.sidebar-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: #f56c00;
}

/* 侧栏块（scenarios / topic） */
.sidebar-block {
  background-color: #ffffff;
  border: 1px solid #eceded;
  border-radius: 8px;
  padding: 24px;
  margin-bottom: 24px;
}

.sidebar-block h2,
.sidebar-block h3 {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid #f0f1f3;
}

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

.faq-item {
  background-color: #ffffff;
  border: 1px solid #eceded;
  border-radius: 8px;
  overflow: hidden;
}

.faq-item summary {
  padding: 18px 24px;
  font-size: 16px;
  font-weight: 600;
  color: #2f3849;
  cursor: pointer;
  list-style: none;
  position: relative;
  padding-right: 48px;
  transition: color 0.2s ease;
}

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

.faq-item summary::after {
  content: "+";
  position: absolute;
  right: 20px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 20px;
  font-weight: 400;
  color: #f56c00;
  transition: transform 0.2s ease;
}

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

.faq-item summary:hover {
  color: #f56c00;
}

.faq-item p {
  padding: 0 24px 18px;
  font-size: 15px;
  color: #5a6270;
  line-height: 1.7;
}

.faq-answer {
  padding: 0 24px 18px;
  font-size: 15px;
  color: #5a6270;
  line-height: 1.7;
}

/* 图片容器 */
.content-image-block {
  background-color: #ffffff;
  border: 1px solid #eceded;
  border-radius: 8px;
  padding: 16px;
  margin: 32px 0;
}

.content-image {
  width: 100%;
  height: 320px;
  object-fit: cover;
  border-radius: 6px;
}

.content-image-block figcaption {
  padding: 12px 4px 4px;
  font-size: 14px;
  color: #8a919f;
  text-align: center;
}

.media-figure {
  margin: 0;
}

.media-figure img {
  width: 100%;
  height: 260px;
  object-fit: cover;
  border-radius: 8px;
}

.media-figure figcaption {
  padding: 12px 4px 4px;
  font-size: 13px;
  color: #8a919f;
  text-align: center;
}

/* 相关链接 */
.related-links {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 40px;
  padding-top: 24px;
  border-top: 1px solid #eceded;
}

.related-links-label {
  font-size: 14px;
  font-weight: 600;
  color: #2f3849;
  margin-right: 4px;
}

.related-links-item {
  display: inline-flex;
  align-items: center;
  font-size: 14px;
  color: #f56c00;
  padding: 6px 14px;
  background-color: #fff0e5;
  border-radius: 20px;
  transition: background-color 0.2s ease;
}

.related-links-item:hover {
  background-color: #ffe0cc;
  color: #d95c00;
}

/* 按钮组 */
.btn-group {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 24px;
}

/* 图文示例 */
.filter-example-wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  align-items: start;
  margin-top: 16px;
}

.example-notes h3 {
  font-size: 17px;
  margin-bottom: 12px;
}

.example-notes ul li {
  position: relative;
  padding-left: 20px;
  font-size: 14px;
  color: #4a5260;
  line-height: 1.7;
  margin-bottom: 8px;
}

.example-notes ul li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 8px;
  height: 8px;
  border-radius: 2px;
  background-color: #f56c00;
}

/* ------------------------------------------------------------
   4. Pages —— 首页
   ------------------------------------------------------------ */
.home-main {
  width: 100%;
}

/* Hero */
.hero-section {
  background-color: #ffffff;
  border-bottom: 1px solid #eceded;
  padding: 48px 0 0;
}

.hero-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
}

.hero-copy h1 {
  font-size: 36px;
  line-height: 1.3;
  margin-bottom: 16px;
}

.hero-lead {
  font-size: 17px;
  color: #5a6270;
  line-height: 1.8;
  margin-bottom: 24px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.hero-media img {
  width: 100%;
  height: 320px;
  object-fit: cover;
  border-radius: 8px;
}

/* 常用需求 */
.quick-needs {
  max-width: 1200px;
  margin: 0 auto;
  padding: 32px 24px;
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}

.quick-label {
  font-size: 14px;
  font-weight: 600;
  color: #2f3849;
  flex-shrink: 0;
}

.quick-tags {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.quick-tags li a {
  display: inline-block;
  padding: 6px 16px;
  font-size: 14px;
  color: #2f3849;
  background-color: #f7f8fa;
  border: 1px solid #eceded;
  border-radius: 20px;
  transition: background-color 0.2s ease, border-color 0.2s ease,
    color 0.2s ease;
}

.quick-tags li a:hover {
  background-color: #fff0e5;
  border-color: #f56c00;
  color: #f56c00;
}

/* 信息边界 */
.info-boundary {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px 40px;
  display: flex;
  align-items: flex-start;
  gap: 24px;
  flex-wrap: wrap;
}

.boundary-icon {
  width: 40px;
  height: 40px;
  border-radius: 8px;
  background-color: #fff0e5;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  flex-shrink: 0;
}

.info-boundary p {
  flex: 1;
  min-width: 240px;
  font-size: 14px;
  color: #5a6270;
  line-height: 1.6;
  margin-bottom: 0;
}

/* 通用 section */
.section {
  max-width: 1200px;
  margin: 0 auto;
  padding: 56px 24px;
}

/* 服务项目总览 */
.service-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.service-card {
  background-color: #ffffff;
  border: 1px solid #eceded;
  border-radius: 8px;
  padding: 28px;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(47, 56, 73, 0.08);
}

.service-tag {
  display: inline-block;
  padding: 4px 12px;
  font-size: 13px;
  font-weight: 600;
  color: #f56c00;
  background-color: #fff0e5;
  border-radius: 4px;
  margin-bottom: 16px;
}

.service-card h3 {
  font-size: 18px;
  margin-bottom: 12px;
}

.service-card p {
  font-size: 14px;
  color: #5a6270;
  line-height: 1.7;
  margin-bottom: 16px;
}

/* 适用场景速览 */
.scenario-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.scenario-item {
  background-color: #ffffff;
  border: 1px solid #eceded;
  border-radius: 8px;
  padding: 24px;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.scenario-item:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(47, 56, 73, 0.06);
}

.scenario-item h3 {
  font-size: 17px;
  margin-bottom: 8px;
}

.scenario-item h3 a {
  color: #2f3849;
}

.scenario-item h3 a:hover {
  color: #f56c00;
}

.scenario-item p {
  font-size: 14px;
  color: #5a6270;
  margin-bottom: 0;
}

/* 合作流程简介 */
.process-preview {
  background-color: #ffffff;
  border-top: 1px solid #eceded;
  border-bottom: 1px solid #eceded;
}

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

.process-step {
  position: relative;
  padding: 24px;
  background-color: #f7f8fa;
  border-radius: 8px;
}

.process-step .step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background-color: #f56c00;
  color: #ffffff;
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 16px;
}

.process-step h3 {
  font-size: 16px;
  margin-bottom: 8px;
}

.process-step p {
  font-size: 14px;
  color: #5a6270;
  margin-bottom: 0;
}

/* FAQ 精选 */
.faq-preview .faq-item {
  margin-bottom: 12px;
}

/* 信息专题入口 */
.topic-card {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 32px;
  background-color: #ffffff;
  border: 1px solid #eceded;
  border-radius: 8px;
  padding: 32px;
  align-items: center;
}

.topic-copy h3 {
  font-size: 22px;
  margin-bottom: 12px;
}

.topic-copy p {
  font-size: 15px;
  color: #5a6270;
  margin-bottom: 16px;
}

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

/* CTA */
.cta-section {
  background-color: #2f3849;
  padding: 56px 24px;
}

.cta-inner {
  max-width: 1200px;
  margin: 0 auto;
  text-align: center;
}

.cta-inner h2 {
  color: #ffffff;
  font-size: 28px;
  margin-bottom: 12px;
}

.cta-inner p {
  color: #b8bfca;
  font-size: 16px;
  margin-bottom: 24px;
}

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

.cta-section .btn-outline {
  border-color: #ffffff;
  color: #ffffff;
}

.cta-section .btn-outline:hover {
  background-color: rgba(255, 255, 255, 0.1);
  color: #ffffff;
}

/* ------------------------------------------------------------
   5. Pages —— 内页：解决方案（solutions）
   ------------------------------------------------------------ */
.page-layout.sidebar-right {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 40px;
  align-items: start;
}

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

.service-section {
  background-color: #ffffff;
  border: 1px solid #eceded;
  border-radius: 8px;
  padding: 32px;
  margin-bottom: 24px;
}

.section-heading {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
}

.section-tag {
  display: inline-block;
  padding: 4px 12px;
  font-size: 13px;
  font-weight: 600;
  color: #f56c00;
  background-color: #fff0e5;
  border-radius: 4px;
  flex-shrink: 0;
}

.section-heading h2 {
  font-size: 22px;
  margin-bottom: 0;
}

.service-detail p {
  font-size: 15px;
  color: #4a5260;
  line-height: 1.8;
}

.service-meta {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 20px;
  padding-top: 20px;
  border-top: 1px solid #f0f1f3;
}

.meta-item {
  background-color: #f7f8fa;
  border-radius: 6px;
  padding: 14px 16px;
  font-size: 14px;
  color: #4a5260;
  line-height: 1.6;
}

/* ------------------------------------------------------------
   6. Pages —— 内页：适用场景（scenarios）
   ------------------------------------------------------------ */
.layout-shell.sidebar-left {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 40px;
  align-items: start;
}

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

.layout-shell.sidebar-left .page-content {
  order: 2;
  min-width: 0;
}

.page-sidebar .sidebar-block {
  position: sticky;
  top: 96px;
}

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

.content-block h2 {
  font-size: 24px;
  margin-bottom: 8px;
  padding-bottom: 12px;
  border-bottom: 2px solid #f56c00;
  display: inline-block;
}

.block-desc {
  font-size: 15px;
  color: #5a6270;
  margin-bottom: 20px;
}

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

.scene-item {
  background-color: #ffffff;
  border: 1px solid #eceded;
  border-radius: 8px;
  padding: 20px;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.scene-item:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(47, 56, 73, 0.06);
}

.scene-item h3 {
  font-size: 16px;
  margin-bottom: 8px;
}

.scene-item p {
  font-size: 14px;
  color: #5a6270;
  line-height: 1.6;
  margin-bottom: 0;
}

/* ------------------------------------------------------------
   7. Pages —— 内页：操作指南（guide）
   ------------------------------------------------------------ */
.guide-layout {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 40px;
  align-items: start;
}

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

.guide-figure {
  margin-bottom: 32px;
}

.guide-figure img {
  width: 100%;
  height: 300px;
  object-fit: cover;
  border-radius: 8px;
}

.guide-figure figcaption {
  padding: 12px 4px 4px;
  font-size: 13px;
  color: #8a919f;
  text-align: center;
}

.guide-steps {
  margin-bottom: 40px;
}

.guide-steps h2 {
  font-size: 24px;
  margin-bottom: 24px;
  padding-bottom: 12px;
  border-bottom: 2px solid #f56c00;
  display: inline-block;
}

.step-item {
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: 20px;
  margin-bottom: 28px;
  position: relative;
}

.step-item::before {
  content: "";
  position: absolute;
  left: 23px;
  top: 56px;
  bottom: -28px;
  width: 2px;
  background-color: #eceded;
}

.step-item:last-child::before {
  display: none;
}

.step-item .step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background-color: #f56c00;
  color: #ffffff;
  font-size: 18px;
  font-weight: 700;
  flex-shrink: 0;
  z-index: 1;
}

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

.step-body p {
  font-size: 15px;
  color: #4a5260;
  line-height: 1.7;
  margin-bottom: 8px;
}

.delivery-notes {
  background-color: #ffffff;
  border: 1px solid #eceded;
  border-radius: 8px;
  padding: 28px;
  margin-bottom: 40px;
}

.delivery-notes h2 {
  font-size: 22px;
  margin-bottom: 12px;
}

.delivery-notes > p {
  font-size: 15px;
  color: #4a5260;
}

.delivery-list {
  margin: 16px 0;
}

.delivery-list li {
  position: relative;
  padding-left: 24px;
  font-size: 15px;
  color: #4a5260;
  line-height: 1.7;
  margin-bottom: 10px;
}

.delivery-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 0;
  color: #f56c00;
  font-weight: 700;
}

.related-links h2 {
  font-size: 20px;
  margin-bottom: 16px;
}

.related-link-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.related-card {
  display: block;
  background-color: #ffffff;
  border: 1px solid #eceded;
  border-radius: 8px;
  padding: 20px;
  transition: transform 0.2s ease, box-shadow 0.2s ease,
    border-color 0.2s ease;
}

.related-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(47, 56, 73, 0.06);
  border-color: #f56c00;
}

.related-card-title {
  display: block;
  font-size: 16px;
  font-weight: 600;
  color: #2f3849;
  margin-bottom: 6px;
}

.related-card-desc {
  display: block;
  font-size: 14px;
  color: #8a919f;
  line-height: 1.5;
}

.guide-aside .aside-block {
  background-color: #ffffff;
  border: 1px solid #eceded;
  border-radius: 8px;
  padding: 24px;
  margin-bottom: 24px;
  position: sticky;
  top: 96px;
}

.aside-block h2 {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid #f0f1f3;
}

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

.aside-links li a {
  display: block;
  padding: 6px 0;
  font-size: 14px;
  color: #4a5260;
  border-bottom: 1px solid #f5f6f8;
  transition: color 0.2s ease, padding-left 0.2s ease;
}

.aside-links li a:hover {
  color: #f56c00;
  padding-left: 4px;
}

/* ------------------------------------------------------------
   8. Pages —— 内页：常见问题（faq）
   ------------------------------------------------------------ */
.page-layout {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 40px;
  align-items: start;
}

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

.faq-group h2 {
  font-size: 24px;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 2px solid #f56c00;
  display: inline-block;
}

.content-media-inline {
  margin-bottom: 20px;
}

.content-media-inline img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  border-radius: 8px;
}

.content-media-inline figcaption {
  padding: 8px 4px 0;
  font-size: 13px;
  color: #8a919f;
  text-align: center;
}

.media-section {
  background-color: #ffffff;
  border-top: 1px solid #eceded;
  padding: 40px 24px;
}

.media-inner {
  max-width: 1200px;
  margin: 0 auto;
}

.media-inner .media-figure img {
  height: 300px;
}

/* ------------------------------------------------------------
   9. Pages —— 内页：合作咨询（contact）
   ------------------------------------------------------------ */
.contact-block {
  background-color: #ffffff;
  border: 1px solid #eceded;
  border-radius: 8px;
  padding: 28px;
  margin-bottom: 24px;
}

.contact-block h2 {
  font-size: 20px;
  margin-bottom: 12px;
}

.contact-block > p {
  font-size: 15px;
  color: #4a5260;
  margin-bottom: 16px;
}

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

.check-list li {
  display: flex;
  gap: 12px;
  align-items: flex-start;
}

.check-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background-color: #fff0e5;
  color: #f56c00;
  font-size: 14px;
  font-weight: 700;
  flex-shrink: 0;
  margin-top: 2px;
}

.check-text {
  font-size: 15px;
  color: #4a5260;
  line-height: 1.7;
}

.side-card {
  background-color: #ffffff;
  border: 1px solid #eceded;
  border-radius: 8px;
  padding: 24px;
  margin-bottom: 24px;
}

.side-card h2 {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid #f0f1f3;
}

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

.side-links li a {
  display: block;
  padding: 6px 0;
  font-size: 14px;
  color: #4a5260;
  border-bottom: 1px solid #f5f6f8;
  transition: color 0.2s ease, padding-left 0.2s ease;
}

.side-links li a:hover {
  color: #f56c00;
  padding-left: 4px;
}

.side-figure {
  background-color: #ffffff;
  border: 1px solid #eceded;
  border-radius: 8px;
  padding: 16px;
}

.side-figure img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-radius: 6px;
}

.side-figure figcaption {
  padding: 10px 4px 2px;
  font-size: 13px;
  color: #8a919f;
  text-align: center;
}

/* ------------------------------------------------------------
   10. Pages —— 内页：信息专题（topic）
   ------------------------------------------------------------ */
.layout-shell {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 40px;
  align-items: start;
}

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

.article-hero {
  margin-bottom: 32px;
}

.article-hero img {
  width: 100%;
  height: 320px;
  object-fit: cover;
  border-radius: 8px;
}

.article-hero figcaption {
  padding: 12px 4px 4px;
  font-size: 13px;
  color: #8a919f;
  text-align: center;
}

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

.content-section h2 {
  font-size: 24px;
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 2px solid #f56c00;
  display: inline-block;
}

.point-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.point-item {
  display: grid;
  grid-template-columns: 40px 1fr;
  gap: 16px;
  background-color: #ffffff;
  border: 1px solid #eceded;
  border-radius: 8px;
  padding: 20px;
}

.point-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background-color: #fff0e5;
  color: #f56c00;
  font-size: 16px;
  font-weight: 700;
  flex-shrink: 0;
}

.point-body h3 {
  font-size: 17px;
  margin-bottom: 8px;
}

.point-body p {
  font-size: 15px;
  color: #4a5260;
  line-height: 1.7;
  margin-bottom: 0;
}

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

.method-item {
  background-color: #ffffff;
  border: 1px solid #eceded;
  border-radius: 8px;
  padding: 20px;
}

.method-item h3 {
  font-size: 16px;
  margin-bottom: 8px;
}

.method-item p {
  font-size: 14px;
  color: #5a6270;
  line-height: 1.6;
  margin-bottom: 0;
}

.related-entry {
  margin-top: 40px;
}

.related-entry h2 {
  font-size: 20px;
  margin-bottom: 16px;
}

.entry-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.entry-card {
  display: block;
  background-color: #ffffff;
  border: 1px solid #eceded;
  border-radius: 8px;
  padding: 20px;
  transition: transform 0.2s ease, box-shadow 0.2s ease,
    border-color 0.2s ease;
}

.entry-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(47, 56, 73, 0.06);
  border-color: #f56c00;
}

.entry-card h3 {
  font-size: 16px;
  margin-bottom: 6px;
  color: #2f3849;
}

.entry-card p {
  font-size: 14px;
  color: #8a919f;
  margin-bottom: 10px;
}

.entry-more {
  font-size: 14px;
  font-weight: 600;
  color: #f56c00;
}

.topic-sidebar .sidebar-block {
  position: sticky;
  top: 96px;
}

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

.error-panel {
  max-width: 560px;
  text-align: center;
  padding: 48px 40px;
  background-color: #ffffff;
  border: 1px solid #eceded;
  border-radius: 8px;
}

.error-code {
  font-size: 72px;
  font-weight: 800;
  color: #f56c00;
  line-height: 1;
  margin-bottom: 16px;
}

.error-panel h1 {
  font-size: 24px;
  margin-bottom: 12px;
}

.error-desc {
  font-size: 15px;
  color: #5a6270;
  margin-bottom: 24px;
}

.error-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 24px;
}

.error-help {
  font-size: 14px;
  color: #8a919f;
}

.error-help a {
  color: #f56c00;
  font-weight: 600;
}

/* ------------------------------------------------------------
   12. Responsive —— 响应式
   ------------------------------------------------------------ */
@media (max-width: 1024px) {
  .service-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .service-meta {
    grid-template-columns: 1fr;
  }

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

  .page-layout.sidebar-right,
  .page-layout,
  .guide-layout,
  .layout-shell,
  .layout-shell.sidebar-left {
    grid-template-columns: 1fr;
    gap: 32px;
  }

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

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

  .page-sidebar .sidebar-block,
  .sidebar-area .sidebar-card,
  .guide-aside .aside-block,
  .sidebar-area .sidebar-block {
    position: static;
  }
}

@media (max-width: 768px) {
  .header-inner {
    height: 64px;
    padding: 0 16px;
    gap: 12px;
  }

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

  .brand-tagline {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }

  .main-nav.site-nav {
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background-color: #ffffff;
    border-bottom: 1px solid #eceded;
    box-shadow: 0 8px 24px rgba(47, 56, 73, 0.08);
    z-index: 99;
  }

  .nav-list {
    display: none;
    flex-direction: column;
    align-items: stretch;
    padding: 12px 16px;
    gap: 0;
  }

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

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

  .nav-link {
    display: block;
    padding: 12px 8px;
    font-size: 15px;
    border-bottom: 1px solid #f0f1f3;
  }

  .nav-link::after {
    display: none;
  }

  .nav-link.is-current {
    color: #f56c00;
    background-color: #fff0e5;
    border-radius: 4px;
  }

  .header-actions .btn-sm {
    display: none;
  }

  .hero-container {
    grid-template-columns: 1fr;
    gap: 32px;
    padding: 0 16px;
  }

  .hero-copy h1 {
    font-size: 28px;
  }

  .hero-media img {
    height: 240px;
  }

  .quick-needs {
    padding: 24px 16px;
  }

  .info-boundary {
    padding: 0 16px 32px;
  }

  .section {
    padding: 40px 16px;
  }

  .service-grid {
    grid-template-columns: 1fr;
  }

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

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

  .topic-card {
    grid-template-columns: 1fr;
    gap: 24px;
    padding: 24px;
  }

  .topic-media img {
    height: 200px;
  }

  .cta-section {
    padding: 40px 16px;
  }

  .cta-inner h2 {
    font-size: 24px;
  }

  .footer-inner {
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
    padding: 40px 16px 24px;
  }

  .footer-bottom {
    padding: 16px;
  }

  .inner-main {
    padding: 24px 16px 40px;
  }

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

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

  .related-link-cards,
  .entry-cards {
    grid-template-columns: 1fr;
  }

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

  .point-item {
    grid-template-columns: 36px 1fr;
    gap: 12px;
    padding: 16px;
  }

  .point-num {
    width: 36px;
    height: 36px;
    font-size: 15px;
  }

  .step-item {
    grid-template-columns: 40px 1fr;
    gap: 16px;
  }

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

  .step-item::before {
    left: 19px;
    top: 48px;
  }

  .article-hero img {
    height: 220px;
  }

  .content-image {
    height: 240px;
  }

  .media-figure img {
    height: 220px;
  }

  .media-inner .media-figure img {
    height: 240px;
  }

  .error-panel {
    padding: 32px 24px;
  }

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

@media (max-width: 480px) {
  .footer-inner {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .service-section {
    padding: 24px;
  }

  .sidebar-card,
  .sidebar-block,
  .side-card,
  .contact-block {
    padding: 20px;
  }

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

  .quick-tags {
    gap: 8px;
  }

  .quick-tags li a {
    padding: 6px 12px;
    font-size: 13px;
  }

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

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

/* 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;
  }
}