/* ==========================================================================
   51吃瓜网页 · 整站样式
   会议资料风：浅灰底、深蓝主色、金黄点缀
   目录：
   01. Base 基础
   02. Layout 布局
   03. Components 组件
   04. Pages 页面
   05. Responsive 响应式
   ========================================================================== */

/* ==========================================================================
   01. Base 基础
   ========================================================================== */

:root {
  --color-bg: #f6f7f9;
  --color-surface: #ffffff;
  --color-text: #222a35;
  --color-primary: #1649a6;
  --color-accent: #f2b632;
  --color-warning: #d9534f;
  --color-muted: #6b7280;
  --color-border: #e3e6eb;
  --font-family: system-ui, -apple-system, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif;
  --container-width: 1200px;
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 8px;
  --header-height: 72px;
}

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

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

body {
  font-family: var(--font-family);
  font-size: 15px;
  line-height: 1.7;
  color: var(--color-text);
  background-color: var(--color-bg);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

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

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: #0e3a7c;
}

ul,
ol {
  list-style: none;
}

button {
  font-family: inherit;
  font-size: inherit;
  border: none;
  background: none;
  cursor: pointer;
}

.container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding-left: 24px;
  padding-right: 24px;
}

/* ==========================================================================
   02. Layout 布局
   ========================================================================== */

.site-body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.site-main {
  flex: 1 0 auto;
  width: 100%;
}

/* ---------- 页头 ---------- */

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

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

.brand-logo {
  display: flex;
  align-items: baseline;
  gap: 10px;
  flex-shrink: 0;
}

.brand-name {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1.2;
}

.brand-tagline {
  font-size: 13px;
  color: var(--color-muted);
  line-height: 1.2;
  white-space: nowrap;
}

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

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

.nav-link {
  display: block;
  padding: 8px 14px;
  font-size: 15px;
  color: var(--color-text);
  border-radius: var(--radius-sm);
  line-height: 1.5;
  white-space: nowrap;
}

.nav-link:hover {
  color: var(--color-primary);
  background-color: rgba(22, 73, 166, 0.06);
}

.nav-link.is-current {
  color: var(--color-primary);
  font-weight: 600;
  background-color: rgba(22, 73, 166, 0.08);
}

.nav-cta {
  flex-shrink: 0;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  flex-shrink: 0;
}

.nav-toggle:hover {
  background-color: rgba(22, 73, 166, 0.06);
}

.toggle-bar {
  display: block;
  width: 22px;
  height: 2px;
  background-color: var(--color-text);
  border-radius: 1px;
  transition: transform 0.2s ease, opacity 0.2s 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);
}

/* ---------- 面包屑 ---------- */

.breadcrumb {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 16px 24px 0;
  font-size: 14px;
  color: var(--color-muted);
  display: flex;
  align-items: center;
  gap: 8px;
}

.breadcrumb a {
  color: var(--color-muted);
}

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

.breadcrumb-sep {
  color: #c0c4cc;
  user-select: none;
}

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

/* ---------- 页面标题区 ---------- */

.page-header {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 28px 24px 0;
}

.page-title {
  font-size: 28px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--color-text);
  position: relative;
  padding-left: 16px;
}

.page-title::before {
  content: "";
  position: absolute;
  left: 0;
  top: 4px;
  bottom: 4px;
  width: 4px;
  background-color: var(--color-accent);
  border-radius: 2px;
}

/* ---------- 页脚 ---------- */

.site-footer {
  background-color: var(--color-surface);
  border-top: 1px solid var(--color-border);
  margin-top: 0;
  flex-shrink: 0;
}

.footer-top {
  padding: 40px 0 32px;
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 48px;
}

.footer-brand-name {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.footer-slogan {
  font-size: 14px;
  color: var(--color-text);
  margin-bottom: 8px;
  font-weight: 500;
}

.footer-desc {
  font-size: 14px;
  color: var(--color-muted);
  line-height: 1.7;
  max-width: 360px;
}

.footer-col-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 14px;
}

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

.footer-link-list a {
  font-size: 14px;
  color: var(--color-muted);
}

.footer-link-list a:hover {
  color: var(--color-primary);
}

.footer-bottom {
  border-top: 1px solid var(--color-border);
  padding: 20px 0 28px;
  text-align: center;
}

.copyright {
  font-size: 13px;
  color: var(--color-muted);
}

/* ---------- 相关内容导航 ---------- */

.related-links {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 32px 24px 48px;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  border-top: 1px solid var(--color-border);
}

.related-links-label {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text);
  margin-right: 8px;
}

.related-links-item {
  font-size: 14px;
  color: var(--color-muted);
  padding: 6px 14px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background-color: var(--color-surface);
}

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

/* ==========================================================================
   03. Components 组件
   ========================================================================== */

/* ---------- 按钮 ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 24px;
  font-size: 15px;
  font-weight: 500;
  line-height: 1.5;
  border-radius: var(--radius-md);
  transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease, box-shadow 0.2s ease;
  min-height: 44px;
  white-space: nowrap;
}

.btn-primary {
  background-color: var(--color-primary);
  color: #ffffff;
  border: 1px solid var(--color-primary);
}

.btn-primary:hover {
  background-color: #0e3a7c;
  border-color: #0e3a7c;
  color: #ffffff;
}

.btn-outline {
  background-color: transparent;
  color: var(--color-primary);
  border: 1px solid var(--color-primary);
}

.btn-outline:hover {
  background-color: rgba(22, 73, 166, 0.06);
  color: var(--color-primary);
}

.btn-secondary {
  background-color: var(--color-accent);
  color: var(--color-text);
  border: 1px solid var(--color-accent);
}

.btn-secondary:hover {
  background-color: #d9a428;
  border-color: #d9a428;
  color: var(--color-text);
}

.btn-ghost {
  background-color: transparent;
  color: var(--color-primary);
  border: 1px solid var(--color-border);
}

.btn-ghost:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background-color: rgba(22, 73, 166, 0.04);
}

.btn-text {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 0;
  font-size: 15px;
  font-weight: 500;
  color: var(--color-primary);
  background: none;
  min-height: 44px;
}

.btn-text::after {
  content: "→";
  font-size: 16px;
  transition: transform 0.2s ease;
}

.btn-text:hover {
  color: #0e3a7c;
}

.btn-text:hover::after {
  transform: translateX(4px);
}

/* ---------- 通知横幅 ---------- */

.notice-bar {
  background-color: #fdf8ec;
  border-bottom: 1px solid #f0e6c8;
  position: relative;
}

.notice-bar .container,
.notice-inner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  padding-top: 10px;
  padding-bottom: 10px;
  position: relative;
}

.notice-content,
.notice-text {
  font-size: 14px;
  color: #6b5a1e;
  line-height: 1.6;
}

.notice-close {
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #8a7a3a;
  font-size: 18px;
  border-radius: 50%;
  flex-shrink: 0;
}

.notice-close:hover {
  background-color: rgba(0, 0, 0, 0.05);
  color: var(--color-text);
}

/* ---------- 区块标题 ---------- */

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

.section-title {
  font-size: 22px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--color-text);
  margin-bottom: 8px;
}

.section-desc {
  font-size: 15px;
  color: var(--color-muted);
  line-height: 1.7;
  max-width: 720px;
}

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

.section-heading .section-title {
  margin-bottom: 8px;
}

/* ---------- FAQ 折叠 ---------- */

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

.faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 20px;
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text);
  cursor: pointer;
  list-style: none;
  line-height: 1.6;
}

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

.faq-item summary::after {
  content: "+";
  font-size: 20px;
  color: var(--color-primary);
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.2s ease;
}

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

.faq-item[open] summary {
  border-bottom: 1px solid var(--color-border);
}

.faq-item .faq-answer,
.faq-item > p {
  padding: 16px 20px;
  font-size: 15px;
  color: #4a5568;
  line-height: 1.8;
}

.faq-question {
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text);
}

/* ---------- 时间线 ---------- */

.timeline-list {
  position: relative;
  padding-left: 0;
}

.timeline-item {
  position: relative;
  padding: 0 0 32px 32px;
  border-left: 2px solid var(--color-border);
  margin-left: 8px;
}

.timeline-item::before {
  content: "";
  position: absolute;
  left: -7px;
  top: 4px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background-color: var(--color-primary);
  border: 2px solid var(--color-surface);
}

.timeline-item:last-child {
  padding-bottom: 0;
}

.timeline-date {
  display: inline-block;
  font-size: 13px;
  color: var(--color-muted);
  background-color: #f0f2f5;
  padding: 2px 10px;
  border-radius: var(--radius-sm);
  margin-bottom: 8px;
}

.timeline-content h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 6px;
}

.timeline-content p {
  font-size: 14px;
  color: var(--color-muted);
  line-height: 1.7;
}

/* ---------- 步骤条 ---------- */

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

.step-item {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 20px 16px;
  text-align: left;
}

.step-item .step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background-color: var(--color-primary);
  color: #ffffff;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 12px;
}

.step-item h3 {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 6px;
}

.step-item p {
  font-size: 13px;
  color: var(--color-muted);
  line-height: 1.6;
}

/* ==========================================================================
   04. Pages 页面
   ========================================================================== */

/* ---------- 首页 ---------- */

.home-main {
  width: 100%;
}

/* 首屏 */

.hero-section {
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  padding: 48px 0 0;
}

.hero-layout {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 48px;
  align-items: center;
  padding-bottom: 48px;
}

.hero-title {
  font-size: 32px;
  font-weight: 700;
  line-height: 1.35;
  color: var(--color-text);
  margin-bottom: 16px;
}

.hero-subtitle {
  font-size: 16px;
  color: var(--color-muted);
  line-height: 1.8;
  margin-bottom: 28px;
  max-width: 480px;
}

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

.hero-media {
  position: relative;
}

.hero-figure {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
  background-color: var(--color-bg);
}

.hero-figure img {
  width: 100%;
  height: 340px;
  object-fit: cover;
}

/* 服务分类速览 */

.category-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  padding: 24px 0 48px;
}

.category-item {
  display: block;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 20px;
  transition: box-shadow 0.2s ease, border-color 0.2s ease;
}

.category-item:hover {
  border-color: var(--color-primary);
  box-shadow: 0 4px 16px rgba(22, 73, 166, 0.08);
}

.category-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 8px;
  line-height: 1.4;
}

.category-desc {
  font-size: 14px;
  color: var(--color-muted);
  line-height: 1.6;
}

/* 主推荐服务 */

.primary-services {
  padding: 48px 0;
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.service-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 28px 24px;
  transition: box-shadow 0.2s ease, border-color 0.2s ease;
  display: flex;
  flex-direction: column;
}

.service-card:hover {
  border-color: var(--color-primary);
  box-shadow: 0 4px 16px rgba(22, 73, 166, 0.08);
}

.service-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background-color: rgba(22, 73, 166, 0.08);
  margin-bottom: 16px;
  position: relative;
}

.service-icon::before {
  content: "";
  position: absolute;
  inset: 12px;
  border: 2px solid var(--color-primary);
  border-radius: var(--radius-sm);
}

.service-name {
  font-size: 17px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 10px;
}

.service-desc {
  font-size: 14px;
  color: var(--color-muted);
  line-height: 1.7;
  margin-bottom: 16px;
  flex: 1;
}

.card-link {
  font-size: 14px;
  font-weight: 500;
  color: var(--color-primary);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

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

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

/* 次推荐方案 */

.secondary-solutions {
  background-color: var(--color-surface);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  padding: 48px 0;
}

.solution-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.solution-item {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 20px 0;
  border-bottom: 1px solid var(--color-border);
  transition: background-color 0.2s ease;
}

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

.solution-item:hover {
  background-color: rgba(22, 73, 166, 0.02);
}

.solution-marker {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--color-accent);
  flex-shrink: 0;
}

.solution-text {
  flex: 1;
}

.solution-name {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 4px;
}

.solution-desc {
  font-size: 14px;
  color: var(--color-muted);
  line-height: 1.6;
}

.solution-arrow {
  font-size: 18px;
  color: var(--color-primary);
  flex-shrink: 0;
  transition: transform 0.2s ease;
}

.solution-item:hover .solution-arrow {
  transform: translateX(4px);
}

/* FAQ 中心 */

.faq-section {
  padding: 48px 0;
}

.faq-layout {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 40px;
  align-items: start;
}

.faq-sidebar {
  position: sticky;
  top: calc(var(--header-height) + 20px);
}

.sidebar-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--color-accent);
}

.faq-theme-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-bottom: 24px;
}

.theme-link {
  display: block;
  padding: 10px 12px;
  font-size: 14px;
  color: var(--color-text);
  border-radius: var(--radius-sm);
  transition: background-color 0.2s ease, color 0.2s ease;
}

.theme-link:hover {
  background-color: rgba(22, 73, 166, 0.06);
  color: var(--color-primary);
}

.faq-sidebar-figure {
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--color-border);
}

.faq-sidebar-figure img {
  width: 100%;
  height: 160px;
  object-fit: cover;
}

.faq-main .section-title {
  margin-bottom: 20px;
}

.faq-main .btn-text {
  margin-top: 8px;
}

/* 最新动态 */

.latest-updates {
  background-color: var(--color-surface);
  border-top: 1px solid var(--color-border);
  padding: 48px 0;
}

.update-preview {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 16px;
}

.update-item {
  padding: 20px;
  border-left: 3px solid var(--color-accent);
  background-color: var(--color-bg);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

.update-tag {
  display: inline-block;
  font-size: 12px;
  color: var(--color-muted);
  background-color: #eef0f3;
  padding: 2px 10px;
  border-radius: var(--radius-sm);
  margin-bottom: 10px;
}

.update-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 6px;
  line-height: 1.5;
}

.update-desc {
  font-size: 14px;
  color: var(--color-muted);
  line-height: 1.6;
}

/* 合作准备入口 */

.cooperation-entry {
  padding: 48px 0;
}

.cooperation-inner {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 40px;
}

.cooperation-inner .section-title {
  margin-bottom: 8px;
}

.cooperation-desc {
  font-size: 15px;
  color: var(--color-muted);
  margin-bottom: 28px;
  max-width: 640px;
}

.prep-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 32px;
}

.prep-step .step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background-color: var(--color-accent);
  color: var(--color-text);
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 12px;
}

.step-name {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 6px;
}

.step-desc {
  font-size: 14px;
  color: var(--color-muted);
  line-height: 1.6;
}

/* ---------- 服务分类页 ---------- */

.inner-main {
  width: 100%;
}

.page-title-block {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 8px 24px 24px;
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.page-title-mark,
.title-mark,
.heading-mark {
  width: 4px;
  height: 36px;
  background-color: var(--color-accent);
  border-radius: 2px;
  flex-shrink: 0;
  margin-top: 4px;
}

.page-title-desc {
  font-size: 15px;
  color: var(--color-muted);
  line-height: 1.7;
  flex: 1;
  max-width: 760px;
}

/* 分类标签 */

.category-tabs {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px 32px;
}

.category-tab-list {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 16px;
}

.category-tab-item {
  flex-shrink: 0;
}

.category-tab-link {
  display: inline-block;
  padding: 10px 20px;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: all 0.2s ease;
}

.category-tab-link:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

/* 服务分类区块 */

.service-category-block {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 40px 24px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
  border-bottom: 1px solid var(--color-border);
}

.service-category-block:last-of-type {
  border-bottom: none;
}

.service-category-media {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
  background-color: var(--color-bg);
}

.service-category-media img {
  width: 100%;
  height: 260px;
  object-fit: cover;
}

.service-category-tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  color: var(--color-primary);
  background-color: rgba(22, 73, 166, 0.08);
  padding: 4px 12px;
  border-radius: var(--radius-sm);
  margin-bottom: 12px;
}

.service-category-title {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 12px;
  line-height: 1.4;
}

.service-category-desc {
  font-size: 15px;
  color: var(--color-muted);
  line-height: 1.8;
  margin-bottom: 16px;
}

.service-category-subtitle {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 12px;
}

.service-scene-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.service-scene-list li {
  position: relative;
  padding-left: 20px;
  font-size: 14px;
  color: #4a5568;
  line-height: 1.6;
}

.service-scene-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--color-accent);
}

/* 合作流程入口 */

.process-entry-block {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 40px 24px 56px;
  text-align: center;
}

.process-entry-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 8px;
}

.process-entry-desc {
  font-size: 15px;
  color: var(--color-muted);
  margin-bottom: 20px;
}

/* ---------- 精选方案页 ---------- */

.page-heading {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 8px 24px 24px;
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.page-heading-desc {
  font-size: 15px;
  color: var(--color-muted);
  line-height: 1.7;
  flex: 1;
  max-width: 760px;
}

.solution-intro {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px 40px;
}

.solution-intro-text {
  margin-bottom: 28px;
}

.solution-intro-text h2 {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 8px;
}

.solution-intro-text p {
  font-size: 15px;
  color: var(--color-muted);
  line-height: 1.7;
  max-width: 720px;
}

.solution-overview-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.solution-overview-card {
  display: block;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 24px 20px;
  transition: box-shadow 0.2s ease, border-color 0.2s ease;
}

.solution-overview-card:hover {
  border-color: var(--color-primary);
  box-shadow: 0 4px 16px rgba(22, 73, 166, 0.08);
}

.overview-card-index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background-color: var(--color-accent);
  color: var(--color-text);
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 12px;
}

.solution-overview-card h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 8px;
}

.solution-overview-card p {
  font-size: 14px;
  color: var(--color-muted);
  line-height: 1.6;
}

/* 方案区块 */

.solution-block {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 40px 24px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
  border-bottom: 1px solid var(--color-border);
}

.solution-block-media {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
  background-color: var(--color-bg);
}

.solution-block-media img {
  width: 100%;
  height: 280px;
  object-fit: cover;
}

.solution-tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  color: var(--color-primary);
  background-color: rgba(22, 73, 166, 0.08);
  padding: 4px 12px;
  border-radius: var(--radius-sm);
  margin-bottom: 12px;
}

.solution-block-content h2 {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 12px;
}

.solution-target {
  font-size: 15px;
  color: #4a5568;
  line-height: 1.8;
  margin-bottom: 20px;
}

.solution-module-list,
.solution-point-list {
  margin-bottom: 16px;
}

.solution-module-list h3,
.solution-point-list h3 {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 10px;
}

.solution-module-list ul,
.solution-point-list ul {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.solution-module-list li,
.solution-point-list li {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  color: #4a5568;
  line-height: 1.6;
}

.solution-module-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--color-primary);
}

.solution-point-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--color-accent);
}

/* 实施步骤 */

.implementation-steps {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 48px 24px;
}

.implementation-steps h2 {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 8px;
}

.implementation-steps .section-desc {
  margin-bottom: 28px;
}

/* FAQ 入口 */

.faq-entry {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px 48px;
}

.faq-entry-text {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}

.faq-entry-text h2 {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 4px;
}

.faq-entry-text p {
  font-size: 14px;
  color: var(--color-muted);
}

/* ---------- 合作流程页 ---------- */

.page-hero {
  padding-top: 8px;
  padding-bottom: 24px;
}

.page-subtitle {
  font-size: 15px;
  color: var(--color-muted);
  line-height: 1.7;
  max-width: 760px;
}

.process-overview {
  padding: 8px 24px 48px;
}

.process-overview .section-heading h2 {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 8px;
}

.process-overview .section-heading p {
  font-size: 15px;
  color: var(--color-muted);
}

.overview-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}

.overview-media {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
  background-color: var(--color-bg);
}

.overview-media img {
  width: 100%;
  height: 260px;
  object-fit: cover;
}

.overview-media figcaption {
  padding: 10px 16px;
  font-size: 13px;
  color: var(--color-muted);
  background-color: var(--color-surface);
  border-top: 1px solid var(--color-border);
}

.process-steps-overview {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.process-steps-overview li {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 16px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text);
}

.process-steps-overview .step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background-color: var(--color-primary);
  color: #ffffff;
  font-size: 13px;
  font-weight: 600;
  flex-shrink: 0;
}

/* 流程步骤 */

.process-step {
  padding: 32px 24px;
  border-bottom: 1px solid var(--color-border);
}

.step-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 16px;
}

.step-label {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  color: var(--color-primary);
  background-color: rgba(22, 73, 166, 0.08);
  padding: 4px 12px;
  border-radius: var(--radius-sm);
  flex-shrink: 0;
}

.step-header h2 {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-text);
}

.step-content {
  max-width: 800px;
}

.step-content p {
  font-size: 15px;
  color: #4a5568;
  line-height: 1.8;
  margin-bottom: 12px;
}

.step-content p:last-child {
  margin-bottom: 0;
}

/* 合作准备清单 */

.preparation-checklist {
  padding: 48px 24px;
}

.preparation-checklist .section-heading h2 {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 8px;
}

.preparation-checklist .section-heading p {
  font-size: 15px;
  color: var(--color-muted);
}

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

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

.checklist-item h3 {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 8px;
  position: relative;
  padding-left: 24px;
}

.checklist-item h3::before {
  content: "";
  position: absolute;
  left: 0;
  top: 4px;
  width: 16px;
  height: 16px;
  border: 2px solid var(--color-primary);
  border-radius: var(--radius-sm);
}

.checklist-item p {
  font-size: 14px;
  color: var(--color-muted);
  line-height: 1.6;
}

/* FAQ 入口卡片 */

.entry-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}

.entry-card h2 {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 4px;
}

.entry-card p {
  font-size: 14px;
  color: var(--color-muted);
}

/* ---------- FAQ 页 ---------- */

.faq-layout.shell-layout {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px 48px;
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 40px;
  align-items: start;
}

.faq-theme-dir {
  position: sticky;
  top: calc(var(--header-height) + 20px);
}

.dir-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--color-accent);
}

.dir-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-bottom: 24px;
}

.dir-list a {
  display: block;
  padding: 10px 12px;
  font-size: 14px;
  color: var(--color-text);
  border-radius: var(--radius-sm);
  transition: background-color 0.2s ease, color 0.2s ease;
}

.dir-list a:hover {
  background-color: rgba(22, 73, 166, 0.06);
  color: var(--color-primary);
}

.dir-figure {
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--color-border);
}

.dir-img {
  width: 100%;
  height: 140px;
  object-fit: cover;
}

.dir-caption {
  padding: 8px 12px;
  font-size: 13px;
  color: var(--color-muted);
  background-color: var(--color-surface);
  border-top: 1px solid var(--color-border);
}

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

.faq-group-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--color-accent);
}

.faq-answer p {
  margin-bottom: 8px;
}

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

.faq-entry {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 24px;
}

.faq-entry-text {
  flex: 1;
  font-size: 14px;
  color: var(--color-muted);
  line-height: 1.7;
  min-width: 200px;
}

/* ---------- 更新记录页 ---------- */

.update-intro {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 8px 24px 40px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}

.update-intro-text h2 {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 8px;
}

.update-intro-text p {
  font-size: 15px;
  color: var(--color-muted);
  line-height: 1.7;
}

.update-intro-figure {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
}

.update-intro-figure img {
  width: 100%;
  height: 220px;
  object-fit: cover;
}

.recent-updates,
.history-updates {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px 48px;
}

.recent-updates .section-heading h2,
.history-updates .section-heading h2 {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 8px;
}

.recent-updates .section-heading p,
.history-updates .section-heading p {
  font-size: 15px;
  color: var(--color-muted);
}

.timeline-list-secondary .timeline-item::before {
  background-color: var(--color-accent);
}

.topic-links-block {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px 48px;
}

.topic-links-block .section-heading h2 {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 8px;
}

.topic-links-block .section-heading p {
  font-size: 15px;
  color: var(--color-muted);
}

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

.topic-link-item {
  display: block;
}

.topic-link {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 20px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.topic-link:hover {
  border-color: var(--color-primary);
  box-shadow: 0 4px 16px rgba(22, 73, 166, 0.08);
}

.topic-link-icon {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  background-color: rgba(22, 73, 166, 0.08);
  position: relative;
  flex-shrink: 0;
}

.topic-link-icon::before {
  content: "";
  position: absolute;
  inset: 9px;
  border: 2px solid var(--color-primary);
  border-radius: 2px;
}

.topic-link-text {
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text);
}

.faq-entry-block {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px 48px;
}

.entry-text {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}

.entry-text h2 {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 4px;
}

.entry-text p {
  font-size: 14px;
  color: var(--color-muted);
}

/* ---------- 服务说明页 ---------- */

.page-title-area {
  border-bottom: 1px solid var(--color-border);
  padding: 8px 0 24px;
}

.title-tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  color: var(--color-primary);
  background-color: rgba(22, 73, 166, 0.08);
  padding: 4px 12px;
  border-radius: var(--radius-sm);
  margin-bottom: 12px;
}

.page-title-desc {
  font-size: 15px;
  color: var(--color-muted);
  line-height: 1.7;
  max-width: 760px;
}

.section-block {
  padding: 48px 0;
  border-bottom: 1px solid var(--color-border);
}

.section-block:last-of-type {
  border-bottom: none;
}

.layout-shell {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}

.about-intro-text h2 {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 16px;
}

.about-intro-text p {
  font-size: 15px;
  color: #4a5568;
  line-height: 1.8;
  margin-bottom: 12px;
}

.about-intro-text p:last-child {
  margin-bottom: 0;
}

.about-intro-media {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
}

.about-intro-media img {
  width: 100%;
  height: 280px;
  object-fit: cover;
}

.boundary-section h2,
.preparation-section h2,
.service-links-section h2 {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 8px;
}

.section-lead {
  font-size: 15px;
  color: var(--color-muted);
  margin-bottom: 28px;
  max-width: 720px;
}

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

.boundary-col {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 28px;
}

.boundary-col h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--color-accent);
}

.check-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.check-list li {
  position: relative;
  padding-left: 24px;
  font-size: 14px;
  color: #4a5568;
  line-height: 1.6;
}

.check-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 0;
  color: var(--color-primary);
  font-weight: 600;
}

.cross-list li::before {
  content: "×";
  color: var(--color-warning);
}

.preparation-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 28px;
}

.preparation-steps .prep-step {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 24px 20px;
}

.preparation-steps .step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background-color: var(--color-accent);
  color: var(--color-text);
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 12px;
}

.preparation-steps h3 {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 6px;
}

.preparation-steps p {
  font-size: 14px;
  color: var(--color-muted);
  line-height: 1.6;
}

.prep-action {
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 20px 24px;
}

.prep-action p {
  flex: 1;
  font-size: 14px;
  color: var(--color-muted);
  line-height: 1.6;
  min-width: 200px;
}

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

.service-link-item {
  display: block;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 24px 20px;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.service-link-item:hover {
  border-color: var(--color-primary);
  box-shadow: 0 4px 16px rgba(22, 73, 166, 0.08);
}

.service-link-item h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.service-link-item p {
  font-size: 14px;
  color: var(--color-muted);
  line-height: 1.6;
}

/* ---------- 404 页 ---------- */

.error-main {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 80px 24px;
  flex: 1;
}

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

.error-code {
  font-size: 72px;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1.2;
  margin-bottom: 16px;
}

.error-content h1 {
  font-size: 24px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 12px;
}

.error-desc {
  font-size: 15px;
  color: var(--color-muted);
  margin-bottom: 28px;
  line-height: 1.7;
}

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

/* ==========================================================================
   05. Responsive 响应式
   ========================================================================== */

@media (max-width: 1024px) {
  .service-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
  }

  .steps-list {
    grid-template-columns: repeat(5, 1fr);
    gap: 12px;
  }

  .step-item {
    padding: 16px 12px;
  }

  .service-category-block,
  .solution-block {
    gap: 24px;
  }

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

@media (max-width: 900px) {
  .hero-layout {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .hero-figure img {
    height: 280px;
  }

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

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

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

  .update-item:last-child {
    grid-column: 1 / -1;
  }

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

  .faq-layout {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .faq-sidebar {
    position: static;
  }

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

  .faq-theme-dir {
    position: static;
  }

  .service-category-block,
  .solution-block {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .service-category-media img,
  .solution-block-media img {
    height: 240px;
  }

  .overview-layout {
    grid-template-columns: 1fr;
    gap: 24px;
  }

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

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

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

  .step-item:nth-child(4),
  .step-item:nth-child(5) {
    grid-column: span 1;
  }

  .update-intro {
    grid-template-columns: 1fr;
    gap: 24px;
  }

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

  .layout-shell {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .about-intro-media img {
    height: 240px;
  }

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

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

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

  .footer-top {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
}

@media (max-width: 768px) {
  .header-inner {
    height: 60px;
    gap: 12px;
  }

  .brand-name {
    font-size: 19px;
  }

  .brand-tagline {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }

  .main-nav {
    position: static;
    order: 3;
  }

  .nav-list {
    display: none;
    position: absolute;
    top: 60px;
    left: 0;
    right: 0;
    background-color: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    flex-direction: column;
    align-items: stretch;
    padding: 8px 16px 16px;
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.06);
    z-index: 99;
  }

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

  .nav-link {
    padding: 12px 16px;
    font-size: 16px;
    border-radius: var(--radius-sm);
  }

  .nav-cta {
    display: none;
  }

  .page-header {
    padding-top: 20px;
  }

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

  .breadcrumb {
    padding-top: 12px;
  }

  .footer-top {
    grid-template-columns: 1fr;
    gap: 24px;
    padding: 32px 0 24px;
  }

  .footer-desc {
    max-width: none;
  }
}

@media (max-width: 640px) {
  .container {
    padding-left: 16px;
    padding-right: 16px;
  }

  .header-inner {
    padding-left: 16px;
    padding-right: 16px;
  }

  .breadcrumb {
    padding-left: 16px;
    padding-right: 16px;
  }

  .page-header {
    padding-left: 16px;
    padding-right: 16px;
  }

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

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

  .hero-actions .btn {
    padding-left: 18px;
    padding-right: 18px;
  }

  .category-strip {
    grid-template-columns: 1fr 1fr;
    gap: 12px;
  }

  .category-item {
    padding: 16px;
  }

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

  .update-preview {
    grid-template-columns: 1fr;
  }

  .update-item:last-child {
    grid-column: auto;
  }

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

  .cooperation-inner {
    padding: 24px 20px;
  }

  .page-title-block,
  .page-heading {
    padding-left: 16px;
    padding-right: 16px;
  }

  .category-tabs {
    padding-left: 16px;
    padding-right: 16px;
  }

  .service-category-block,
  .solution-block {
    padding-left: 16px;
    padding-right: 16px;
  }

  .service-category-media img,
  .solution-block-media img {
    height: 200px;
  }

  .process-entry-block {
    padding-left: 16px;
    padding-right: 16px;
  }

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

  .implementation-steps {
    padding-left: 16px;
    padding-right: 16px;
  }

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

  .step-item:nth-child(5) {
    grid-column: 1 / -1;
  }

  .faq-entry {
    padding-left: 16px;
    padding-right: 16px;
  }

  .faq-entry-text {
    padding: 20px;
    flex-direction: column;
    align-items: flex-start;
  }

  .faq-layout.shell-layout {
    padding-left: 16px;
    padding-right: 16px;
  }

  .faq-entry {
    flex-direction: column;
    align-items: flex-start;
  }

  .process-overview {
    padding-left: 16px;
    padding-right: 16px;
  }

  .process-step {
    padding-left: 16px;
    padding-right: 16px;
  }

  .preparation-checklist {
    padding-left: 16px;
    padding-right: 16px;
  }

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

  .entry-card {
    padding: 20px;
    flex-direction: column;
    align-items: flex-start;
  }

  .update-intro {
    padding-left: 16px;
    padding-right: 16px;
  }

  .recent-updates,
  .history-updates {
    padding-left: 16px;
    padding-right: 16px;
  }

  .topic-links-block {
    padding-left: 16px;
    padding-right: 16px;
  }

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

  .faq-entry-block {
    padding-left: 16px;
    padding-right: 16px;
  }

  .entry-text {
    padding: 20px;
    flex-direction: column;
    align-items: flex-start;
  }

  .section-block {
    padding: 32px 0;
  }

  .boundary-col {
    padding: 20px;
  }

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

  .prep-action {
    flex-direction: column;
    align-items: flex-start;
  }

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

  .related-links {
    padding-left: 16px;
    padding-right: 16px;
    padding-bottom: 32px;
  }

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

@media (max-width: 480px) {
  .category-strip {
    grid-template-columns: 1fr;
  }

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

  .step-item:nth-child(5) {
    grid-column: auto;
  }

  .timeline-item {
    padding-left: 24px;
  }
}