/* ============================================================
   wfsshlz.com 全站样式表
   结构：base / layout / components / pages / responsive
   ============================================================ */

/* ============================================================
   base —— 全局基础
   ============================================================ */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  font-size: 16px;
  line-height: 1.7;
  color: #1F2933;
  background-color: #F5F1EB;
}

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

a {
  color: #0F4C5C;
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: #E9B44C;
}

ul, ol {
  list-style: none;
}

/* 图片稳定约束 */
figure {
  margin: 0;
}

figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ============================================================
   layout —— 全站骨架布局
   ============================================================ */

/* 页头 */
.site-header {
  background-color: #0F4C5C;
  border-bottom: 3px solid #E9B44C;
  position: relative;
  z-index: 100;
}

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

.brand {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.brand a {
  display: flex;
  flex-direction: column;
  color: #fff;
}

.brand-name {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 1px;
}

.brand-tag {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.75);
  margin-top: 2px;
}

/* 主导航 */
.main-nav ul {
  display: flex;
  gap: 4px;
}

.main-nav a {
  display: block;
  padding: 10px 16px;
  font-size: 15px;
  color: rgba(255, 255, 255, 0.85);
  border-radius: 4px;
  transition: background-color 0.2s ease, color 0.2s ease;
}

.main-nav a:hover {
  color: #fff;
  background-color: rgba(255, 255, 255, 0.1);
}

.main-nav a.is-current {
  color: #0F4C5C;
  background-color: #E9B44C;
  font-weight: 600;
}

/* 汉堡按钮 */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  background: none;
  border: none;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: #fff;
  border-radius: 1px;
}

/* 页脚 */
.site-footer {
  background-color: #0F4C5C;
  color: rgba(255, 255, 255, 0.85);
  margin-top: 64px;
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 48px 24px 24px;
  display: flex;
  gap: 40px;
  justify-content: space-between;
  flex-wrap: wrap;
}

.footer-brand {
  max-width: 280px;
}

.footer-brand-name {
  font-size: 20px;
  font-weight: 700;
  color: #fff;
  display: block;
  margin-bottom: 8px;
}

.footer-brand p {
  font-size: 14px;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.7);
}

.footer-links {
  display: flex;
  gap: 48px;
  flex-wrap: wrap;
}

.footer-col h3 {
  font-size: 14px;
  color: #E9B44C;
  margin-bottom: 12px;
  font-weight: 600;
}

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

.footer-col a {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.75);
}

.footer-col a:hover {
  color: #E9B44C;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  padding: 16px 24px;
  text-align: center;
}

.footer-bottom p {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.6);
  max-width: 1200px;
  margin: 0 auto;
}

/* 内页主容器 */
.site-main {
  min-height: calc(100vh - 300px);
}

.inner-main {
  padding: 32px 0 0;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* 面包屑 */
.breadcrumb {
  font-size: 14px;
  color: #6B7280;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

.breadcrumb a {
  color: #0F4C5C;
}

.breadcrumb a:hover {
  color: #E9B44C;
}

.breadcrumb-sep {
  color: #6B7280;
}

.breadcrumb-current {
  color: #6B7280;
}

/* 页标题区 */
.page-header {
  margin-bottom: 32px;
}

.page-title {
  font-size: 28px;
  line-height: 1.3;
  font-weight: 700;
  color: #0F4C5C;
  margin-bottom: 8px;
}

.page-description {
  font-size: 16px;
  line-height: 1.7;
  color: #6B7280;
  max-width: 760px;
}

/* 内容与侧栏布局（主内容在前，aside 在后） */
.page-layout {
  display: flex;
  gap: 32px;
  align-items: flex-start;
}

.content-main {
  flex: 1 1 70%;
  min-width: 0;
}

.sidebar {
  flex: 0 0 28%;
  min-width: 260px;
}

/* 覆盖页独立布局 */
.layout-shell {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  gap: 32px;
  align-items: flex-start;
}

.main-content {
  flex: 1 1 70%;
  min-width: 0;
}

/* ============================================================
   components —— 全站通用组件
   ============================================================ */

/* 区块标题 */
.section-heading {
  margin-bottom: 24px;
}

.section-heading h2 {
  font-size: 24px;
  line-height: 1.4;
  color: #0F4C5C;
  margin-bottom: 8px;
}

.section-heading p,
.section-desc {
  font-size: 15px;
  line-height: 1.7;
  color: #6B7280;
  max-width: 720px;
}

/* 侧栏卡片 */
.sidebar-card,
.sidebar-block,
.sidebar-widget {
  background-color: #fff;
  border-radius: 8px;
  padding: 24px;
  margin-bottom: 24px;
  box-shadow: 0 1px 4px rgba(15, 76, 92, 0.06);
}

.sidebar-card h2,
.sidebar-block h2,
.sidebar-widget h2 {
  font-size: 18px;
  font-weight: 600;
  color: #0F4C5C;
  padding-bottom: 12px;
  border-bottom: 2px solid #F5F1EB;
  margin-bottom: 16px;
}

.sidebar-links li {
  margin-bottom: 4px;
}

.sidebar-links a {
  display: block;
  padding: 8px 10px;
  font-size: 15px;
  color: #1F2933;
  border-radius: 4px;
  transition: background-color 0.2s ease, color 0.2s ease;
}

.sidebar-links a:hover {
  background-color: #F5F1EB;
  color: #0F4C5C;
}

.sidebar-tip p {
  font-size: 14px;
  line-height: 1.7;
  color: #6B7280;
}

/* 按钮 */
.btn-primary,
.btn-secondary {
  display: inline-block;
  padding: 12px 28px;
  font-size: 16px;
  font-weight: 600;
  border-radius: 6px;
  text-align: center;
  min-height: 44px;
  line-height: 1.4;
  transition: background-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}

.btn-primary {
  background-color: #0F4C5C;
  color: #fff;
}

.btn-primary:hover {
  background-color: #0A3A47;
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(15, 76, 92, 0.2);
}

.btn-secondary {
  background-color: transparent;
  color: #0F4C5C;
  border: 2px solid #0F4C5C;
}

.btn-secondary:hover {
  background-color: #0F4C5C;
  color: #fff;
  transform: translateY(-2px);
}

/* FAQ 折叠项 */
details.faq-item {
  background-color: #fff;
  border-radius: 8px;
  margin-bottom: 12px;
  box-shadow: 0 1px 3px rgba(15, 76, 92, 0.06);
  overflow: hidden;
}

details.faq-item summary {
  padding: 16px 20px;
  font-size: 15px;
  font-weight: 600;
  color: #1F2933;
  cursor: pointer;
  position: relative;
  padding-right: 40px;
  list-style: none;
}

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

details.faq-item summary::after {
  content: "+";
  position: absolute;
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 20px;
  color: #0F4C5C;
  font-weight: 400;
}

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

details.faq-item p {
  padding: 0 20px 16px;
  font-size: 14px;
  line-height: 1.7;
  color: #6B7280;
}

/* 内容图片 */
.content-media {
  margin: 24px 0;
  border-radius: 8px;
  overflow: hidden;
  background-color: #fff;
  box-shadow: 0 1px 4px rgba(15, 76, 92, 0.06);
}

.content-media img,
.content-media-primary img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.content-media figcaption,
.content-media-primary figcaption,
.content-figure figcaption,
.notice-figure figcaption,
.about-figure figcaption,
.process-figure figcaption {
  padding: 12px 16px;
  font-size: 13px;
  line-height: 1.6;
  color: #6B7280;
  background-color: #fff;
}

/* 流程步骤点 */
.step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background-color: #0F4C5C;
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  flex-shrink: 0;
}

/* 边界列表 */
.boundary-list li {
  position: relative;
  padding: 10px 0 10px 24px;
  font-size: 15px;
  line-height: 1.7;
  color: #1F2933;
  border-bottom: 1px solid #F5F1EB;
}

.boundary-list li:last-child {
  border-bottom: none;
}

.boundary-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 18px;
  width: 8px;
  height: 8px;
  border-radius: 2px;
  background-color: #E9B44C;
}

/* ============================================================
   pages —— 首页模块
   ============================================================ */

/* 首页 hero */
.hero {
  max-width: 1200px;
  margin: 0 auto;
  padding: 48px 24px 40px;
  display: flex;
  gap: 48px;
  align-items: center;
}

.hero-content {
  flex: 1 1 50%;
}

.hero-content h1 {
  font-size: 32px;
  line-height: 1.3;
  color: #0F4C5C;
  margin-bottom: 16px;
}

.hero-lead {
  font-size: 16px;
  line-height: 1.8;
  color: #6B7280;
  margin-bottom: 24px;
  max-width: 520px;
}

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

.hero-media {
  flex: 1 1 50%;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 4px 16px rgba(15, 76, 92, 0.12);
}

.hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* 首页内容区公共 */
.download-overview,
.service-overview,
.coverage-process,
.faq-preview,
.compliance-note {
  max-width: 1200px;
  margin: 0 auto;
  padding: 48px 24px;
}

/* 下载渠道概览 */
.download-overview {
  background-color: #fff;
  border-top: 1px solid #F5F1EB;
  border-bottom: 1px solid #F5F1EB;
}

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

.overview-item {
  background-color: #F5F1EB;
  border-radius: 8px;
  padding: 28px;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.overview-item:hover {
  transform: translateY(-4px);
  box-shadow: 0 4px 12px rgba(15, 76, 92, 0.08);
}

.overview-item h3 {
  font-size: 20px;
  color: #0F4C5C;
  margin-bottom: 8px;
}

.overview-item p {
  font-size: 15px;
  line-height: 1.7;
  color: #6B7280;
  margin-bottom: 12px;
}

.overview-item a {
  font-size: 15px;
  font-weight: 600;
  color: #0F4C5C;
}

/* 服务项目总览 */
.service-overview {
  background-color: #F5F1EB;
}

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

.service-card {
  background-color: #fff;
  border-radius: 8px;
  padding: 28px;
  box-shadow: 0 1px 4px rgba(15, 76, 92, 0.06);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 6px 16px rgba(15, 76, 92, 0.1);
}

.service-card h3 {
  font-size: 18px;
  color: #0F4C5C;
  margin-bottom: 8px;
}

.service-card p {
  font-size: 14px;
  line-height: 1.7;
  color: #6B7280;
  margin-bottom: 12px;
}

.service-card a {
  font-size: 14px;
  font-weight: 600;
  color: #0F4C5C;
}

/* 覆盖区域与流程预览 */
.coverage-process {
  display: flex;
  gap: 48px;
  align-items: flex-start;
}

.coverage-block,
.process-preview {
  flex: 1 1 50%;
}

.coverage-block h2,
.process-preview h2 {
  font-size: 24px;
  color: #0F4C5C;
  margin-bottom: 12px;
}

.coverage-block p {
  font-size: 15px;
  line-height: 1.7;
  color: #6B7280;
  margin-bottom: 16px;
}

.coverage-block a {
  font-size: 15px;
  font-weight: 600;
  color: #0F4C5C;
}

.process-preview ol {
  counter-reset: step;
}

.process-preview .process-steps li {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  margin-bottom: 16px;
}

.process-preview .process-steps li h3 {
  font-size: 16px;
  color: #1F2933;
  margin-bottom: 4px;
}

.process-preview .process-steps li p {
  font-size: 14px;
  line-height: 1.6;
  color: #6B7280;
}

.process-preview > a {
  display: inline-block;
  margin-top: 8px;
  font-size: 15px;
  font-weight: 600;
  color: #0F4C5C;
}

/* 首页 FAQ 预览 */
.faq-preview {
  background-color: #fff;
  border-top: 1px solid #F5F1EB;
  border-bottom: 1px solid #F5F1EB;
}

.faq-preview .faq-list {
  margin-bottom: 24px;
}

.faq-more {
  text-align: center;
}

.faq-more a {
  display: inline-block;
  padding: 10px 28px;
  font-size: 15px;
  font-weight: 600;
  color: #0F4C5C;
  border: 2px solid #0F4C5C;
  border-radius: 6px;
  transition: background-color 0.2s ease, color 0.2s ease;
}

.faq-more a:hover {
  background-color: #0F4C5C;
  color: #fff;
}

/* 合规说明 */
.compliance-note {
  background-color: #F5F1EB;
}

.compliance-note h2 {
  font-size: 24px;
  color: #0F4C5C;
  margin-bottom: 12px;
}

.compliance-note p {
  font-size: 15px;
  line-height: 1.7;
  color: #6B7280;
  margin-bottom: 12px;
  max-width: 900px;
}

/* 首页相关链接 */
.related-links {
  max-width: 1200px;
  margin: 0 auto;
  padding: 24px;
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  align-items: center;
  border-top: 1px solid #F5F1EB;
}

.related-links-label {
  font-size: 14px;
  font-weight: 600;
  color: #0F4C5C;
  margin-right: 8px;
}

.related-links-item {
  font-size: 14px;
  color: #6B7280;
  padding: 6px 12px;
  border-radius: 4px;
  background-color: #fff;
  transition: color 0.2s ease, background-color 0.2s ease;
}

.related-links-item:hover {
  color: #0F4C5C;
  background-color: #F5F1EB;
}

/* ============================================================
   pages —— 服务项目页
   ============================================================ */

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

.service-block .service-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  align-items: center;
  margin-bottom: 24px;
}

.service-figure {
  border-radius: 8px;
  overflow: hidden;
  background-color: #fff;
  box-shadow: 0 1px 4px rgba(15, 76, 92, 0.06);
}

.service-figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.service-text p {
  font-size: 15px;
  line-height: 1.7;
  color: #6B7280;
  margin-bottom: 12px;
}

.service-note-card {
  background-color: #F5F1EB;
  border-radius: 8px;
  padding: 24px;
  border-left: 4px solid #E9B44C;
}

.service-note-card p {
  font-size: 14px;
  line-height: 1.7;
  color: #1F2933;
  margin-bottom: 8px;
}

.service-note-card p:last-child {
  margin-bottom: 0;
}

.boundary-block .boundary-list {
  background-color: #fff;
  border-radius: 8px;
  padding: 8px 24px;
  box-shadow: 0 1px 4px rgba(15, 76, 92, 0.06);
}

/* ============================================================
   pages —— 覆盖区域页
   ============================================================ */

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

.content-section h2 {
  font-size: 22px;
  color: #0F4C5C;
  margin-bottom: 12px;
}

.section-intro p {
  font-size: 15px;
  line-height: 1.7;
  color: #6B7280;
  margin-bottom: 12px;
}

.content-media {
  margin-top: 20px;
}

.content-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

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

.step-list li {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 12px 0;
  border-bottom: 1px solid #F5F1EB;
}

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

/* 覆盖确认网格 */
.confirmation-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin-top: 16px;
}

.confirm-item {
  background-color: #fff;
  border-radius: 8px;
  padding: 20px;
  box-shadow: 0 1px 4px rgba(15, 76, 92, 0.06);
}

.confirm-item h3 {
  font-size: 16px;
  color: #0F4C5C;
  margin-bottom: 8px;
}

.confirm-item p {
  font-size: 14px;
  line-height: 1.7;
  color: #6B7280;
}

/* ============================================================
   pages —— 办理流程页
   ============================================================ */

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

.process-overview > h2,
.process-detail > h2,
.process-issue > h2 {
  font-size: 22px;
  color: #0F4C5C;
  margin-bottom: 12px;
}

.process-overview > p,
.process-detail > p,
.process-issue > p {
  font-size: 15px;
  line-height: 1.7;
  color: #6B7280;
  margin-bottom: 20px;
}

/* 流程步骤卡片 */
.process-overview .process-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.step-item {
  background-color: #fff;
  border-radius: 8px;
  padding: 20px;
  box-shadow: 0 1px 4px rgba(15, 76, 92, 0.06);
  text-align: center;
}

.step-item .step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background-color: #0F4C5C;
  color: #fff;
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 12px;
}

.step-item h3 {
  font-size: 16px;
  color: #1F2933;
  margin-bottom: 6px;
}

.step-item p {
  font-size: 13px;
  line-height: 1.6;
  color: #6B7280;
}

/* 流程表格 */
.process-table-wrap {
  background-color: #fff;
  border-radius: 8px;
  box-shadow: 0 1px 4px rgba(15, 76, 92, 0.06);
  overflow-x: auto;
  margin-bottom: 20px;
}

.process-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 640px;
}

.process-table th,
.process-table td {
  padding: 14px 16px;
  text-align: left;
  font-size: 14px;
  line-height: 1.6;
  border-bottom: 1px solid #F5F1EB;
}

.process-table th {
  background-color: #0F4C5C;
  color: #fff;
  font-weight: 600;
}

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

.process-table td {
  color: #1F2933;
}

/* 流程问题 */
.issue-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.issue-item {
  background-color: #fff;
  border-radius: 8px;
  padding: 20px;
  box-shadow: 0 1px 4px rgba(15, 76, 92, 0.06);
}

.issue-item h3 {
  font-size: 15px;
  color: #0F4C5C;
  margin-bottom: 8px;
}

.issue-item p {
  font-size: 14px;
  line-height: 1.7;
  color: #6B7280;
}

/* 流程页尾部图片 */
.content-figure {
  border-radius: 8px;
  overflow: hidden;
  background-color: #fff;
  box-shadow: 0 1px 4px rgba(15, 76, 92, 0.06);
  margin-top: 32px;
}

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

/* ============================================================
   pages —— 注意事项页
   ============================================================ */

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

.notice-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.notice-item {
  background-color: #fff;
  border-radius: 8px;
  padding: 20px;
  box-shadow: 0 1px 4px rgba(15, 76, 92, 0.06);
  border-top: 3px solid #E9B44C;
}

.notice-item h3 {
  font-size: 16px;
  color: #0F4C5C;
  margin-bottom: 8px;
}

.notice-item p {
  font-size: 14px;
  line-height: 1.7;
  color: #6B7280;
}

.notice-figure {
  border-radius: 8px;
  overflow: hidden;
  background-color: #fff;
  box-shadow: 0 1px 4px rgba(15, 76, 92, 0.06);
  margin-top: 32px;
}

.notice-figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ============================================================
   pages —— 问题反馈页
   ============================================================ */

.feedback-process {
  margin: 48px 0;
}

.feedback-process > h2,
.faq-section > h2,
.follow-up-section > h2 {
  font-size: 22px;
  color: #0F4C5C;
  margin-bottom: 16px;
}

.process-figure {
  border-radius: 8px;
  overflow: hidden;
  background-color: #fff;
  box-shadow: 0 1px 4px rgba(15, 76, 92, 0.06);
  margin-bottom: 24px;
}

.process-figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* 反馈流程步骤 */
.feedback-process .process-steps {
  counter-reset: step;
}

.feedback-process .process-steps li {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 12px 0;
  position: relative;
}

.feedback-process .process-steps li::before {
  counter-increment: step;
  content: counter(step);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background-color: #0F4C5C;
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  flex-shrink: 0;
}

.step-label {
  font-weight: 600;
  color: #1F2933;
  font-size: 15px;
  display: block;
  margin-bottom: 2px;
}

.feedback-process .process-steps li p {
  font-size: 14px;
  line-height: 1.6;
  color: #6B7280;
}

/* 跟进卡片 */
.follow-up-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.follow-up-card {
  background-color: #fff;
  border-radius: 8px;
  padding: 20px;
  box-shadow: 0 1px 4px rgba(15, 76, 92, 0.06);
}

.follow-up-card h3 {
  font-size: 16px;
  color: #0F4C5C;
  margin-bottom: 8px;
}

.follow-up-card p {
  font-size: 14px;
  line-height: 1.7;
  color: #6B7280;
}

/* ============================================================
   pages —— 关于我们页
   ============================================================ */

.about-intro {
  display: flex;
  gap: 32px;
  align-items: flex-start;
  margin-bottom: 48px;
}

.about-text {
  flex: 1 1 55%;
}

.about-text h2 {
  font-size: 22px;
  color: #0F4C5C;
  margin-bottom: 12px;
}

.about-text p {
  font-size: 15px;
  line-height: 1.7;
  color: #6B7280;
  margin-bottom: 12px;
}

.about-figure {
  flex: 1 1 45%;
  border-radius: 8px;
  overflow: hidden;
  background-color: #fff;
  box-shadow: 0 1px 4px rgba(15, 76, 92, 0.06);
}

.about-figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.about-boundary {
  margin-bottom: 48px;
}

.about-boundary > h2,
.about-principle > h2 {
  font-size: 22px;
  color: #0F4C5C;
  margin-bottom: 12px;
}

.about-boundary > p,
.about-principle > p {
  font-size: 15px;
  line-height: 1.7;
  color: #6B7280;
  margin-bottom: 16px;
}

.about-boundary .boundary-list {
  background-color: #fff;
  border-radius: 8px;
  padding: 8px 24px;
  box-shadow: 0 1px 4px rgba(15, 76, 92, 0.06);
}

.principle-list {
  counter-reset: principle;
}

.principle-list li {
  counter-increment: principle;
  position: relative;
  padding: 12px 0 12px 48px;
  font-size: 15px;
  line-height: 1.7;
  color: #1F2933;
  border-bottom: 1px solid #F5F1EB;
}

.principle-list li:last-child {
  border-bottom: none;
}

.principle-list li::before {
  content: counter(principle);
  position: absolute;
  left: 0;
  top: 12px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background-color: #0F4C5C;
  color: #fff;
  font-size: 14px;
  font-weight: 600;
}

/* ============================================================
   pages —— 404 页
   ============================================================ */

.error-main {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: calc(100vh - 300px);
  padding: 48px 24px;
}

.error-panel {
  text-align: center;
  max-width: 520px;
}

.error-code {
  font-size: 72px;
  font-weight: 700;
  color: #0F4C5C;
  line-height: 1.2;
  margin-bottom: 8px;
}

.error-panel h1 {
  font-size: 24px;
  color: #1F2933;
  margin-bottom: 12px;
}

.error-desc {
  font-size: 15px;
  line-height: 1.7;
  color: #6B7280;
  margin-bottom: 8px;
}

.error-btn {
  display: inline-block;
  margin-top: 20px;
  padding: 12px 28px;
  font-size: 15px;
  font-weight: 600;
  color: #fff;
  background-color: #0F4C5C;
  border-radius: 6px;
  transition: background-color 0.2s ease;
}

.error-btn:hover {
  background-color: #0A3A47;
  color: #fff;
}

/* ============================================================
   responsive —— 响应式
   ============================================================ */

/* 平板 */
@media (max-width: 992px) {

  .page-layout,
  .layout-shell {
    flex-direction: column;
  }

  .content-main,
  .main-content {
    width: 100%;
    flex: none;
  }

  .sidebar {
    width: 100%;
    flex: none;
    min-width: 0;
  }

  .sidebar-card,
  .sidebar-block,
  .sidebar-widget {
    margin-bottom: 16px;
  }

  .hero {
    flex-direction: column;
    gap: 24px;
  }

  .hero-content,
  .hero-media {
    width: 100%;
    flex: none;
  }

  .coverage-process {
    flex-direction: column;
    gap: 32px;
  }

  .coverage-block,
  .process-preview {
    width: 100%;
    flex: none;
  }

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

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

  .about-intro {
    flex-direction: column;
  }

  .about-text,
  .about-figure {
    width: 100%;
    flex: none;
  }
}

/* 手机 */
@media (max-width: 768px) {

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

  .main-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: #0F4C5C;
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.15);
    display: none;
  }

  .main-nav.is-open {
    display: block;
  }

  .main-nav ul {
    flex-direction: column;
    padding: 8px 16px 16px;
  }

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

  .header-inner {
    min-height: 64px;
    flex-wrap: wrap;
  }

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

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

  /* 内页间距 */
  .inner-main {
    padding-top: 24px;
  }

  .container,
  .layout-shell {
    padding: 0 16px;
  }

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

  .page-description {
    font-size: 15px;
  }

  /* 首页 hero */
  .hero {
    padding: 32px 16px 28px;
  }

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

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

  .hero-actions {
    flex-direction: column;
    width: 100%;
  }

  .hero-actions .btn-primary,
  .hero-actions .btn-secondary {
    width: 100%;
  }

  /* 首页模块间距 */
  .download-overview,
  .service-overview,
  .coverage-process,
  .faq-preview,
  .compliance-note {
    padding: 32px 16px;
  }

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

  .coverage-process {
    gap: 24px;
  }

  /* 服务页 */
  .service-block .service-grid {
    grid-template-columns: 1fr;
  }

  .service-block .service-grid.reverse {
    display: flex;
    flex-direction: column;
  }

  .service-block .service-grid.reverse .service-text {
    order: 2;
  }

  .service-block .service-grid.reverse .service-note-card {
    order: 1;
  }

  /* 覆盖页 */
  .confirmation-grid {
    grid-template-columns: 1fr;
  }

  /* 流程页 */
  .process-overview .process-steps {
    grid-template-columns: 1fr;
  }

  .process-table-wrap {
    overflow-x: auto;
  }

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

  /* 注意事项页 */
  .notice-grid {
    grid-template-columns: 1fr;
  }

  /* 反馈页 */
  .follow-up-grid {
    grid-template-columns: 1fr;
  }

  /* 页脚 */
  .footer-inner {
    flex-direction: column;
    gap: 24px;
    padding: 32px 16px 16px;
  }

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

  .footer-links {
    gap: 24px;
  }

  .footer-col {
    flex: 1 1 45%;
  }

  .footer-bottom {
    padding: 16px;
  }

  /* 面包屑 */
  .breadcrumb {
    font-size: 13px;
  }

  /* FAQ */
  details.faq-item summary {
    font-size: 14px;
    padding: 14px 40px 14px 16px;
  }

  details.faq-item p {
    font-size: 13px;
    padding: 0 16px 14px;
  }
}

/* 小屏手机 */
@media (max-width: 480px) {

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

  .main-nav a {
    font-size: 15px;
    padding: 12px 12px;
  }

  .footer-col {
    flex: 1 1 100%;
  }

  .process-preview .process-steps li {
    flex-direction: column;
    gap: 6px;
  }

  .step-num {
    margin-bottom: 4px;
  }

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

  .error-panel h1 {
    font-size: 20px;
  }
}