/* ============================================================
   BASE — 全局基础样式
   ============================================================ */
*, *::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: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
  font-size: 16px;
  line-height: 1.7;
  color: #2C3E50;
  background-color: #F5F7FA;
  background-image: radial-gradient(circle, rgba(27, 58, 92, 0.05) 1px, transparent 1px);
  background-size: 24px 24px;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

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

a {
  color: #1B3A5C;
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: #3A9B8E;
}

ul, ol {
  list-style: none;
}

h1, h2, h3, h4 {
  font-weight: 700;
  line-height: 1.3;
  color: #1B3A5C;
}

h1 {
  font-size: 30px;
}

h2 {
  font-size: 23px;
}

h3 {
  font-size: 18px;
}

p {
  margin-bottom: 12px;
}

figure {
  margin: 0;
}

table {
  border-collapse: collapse;
  width: 100%;
}

input, button, select, textarea {
  font-family: inherit;
  font-size: inherit;
}

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

/* ============================================================
   LAYOUT — 全站布局骨架
   ============================================================ */
.site-header {
  background-color: #1B3A5C;
  border-bottom: 3px solid #3A9B8E;
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 64px;
}

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

.brand-name {
  font-size: 22px;
  font-weight: 700;
  color: #ffffff;
  letter-spacing: 0.02em;
}

.brand-tagline {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.7);
  margin-top: 2px;
}

.main-nav ul {
  display: flex;
  gap: 4px;
}

.main-nav a {
  display: block;
  padding: 8px 14px;
  color: rgba(255, 255, 255, 0.85);
  font-size: 15px;
  border-radius: 4px;
  transition: background-color 0.2s ease, color 0.2s ease;
}

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

.main-nav a.is-current {
  color: #ffffff;
  background-color: rgba(58, 155, 142, 0.5);
  font-weight: 600;
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 10px;
  min-width: 44px;
  min-height: 44px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
}

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

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

.site-footer {
  background-color: #1B3A5C;
  margin-top: auto;
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 16px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 56px;
}

.copyright {
  color: rgba(255, 255, 255, 0.7);
  font-size: 13px;
  margin: 0;
}

.footer-nav {
  display: flex;
  gap: 20px;
}

.footer-nav a {
  color: rgba(255, 255, 255, 0.75);
  font-size: 13px;
}

.footer-nav a:hover {
  color: #ffffff;
}

/* 内页骨架 */
.site-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  width: 100%;
  flex: 1;
}

.inner-main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  width: 100%;
  flex: 1;
}

/* 面包屑 */
.breadcrumb {
  padding: 18px 0 0;
  font-size: 14px;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
}

.breadcrumb a {
  color: #3A9B8E;
}

.breadcrumb a:hover {
  color: #1B3A5C;
}

.breadcrumb-sep {
  color: #95A5A6;
  margin: 0 2px;
}

.breadcrumb-current {
  color: #7F8C8D;
}

.page-breadcrumb {
  max-width: 1200px;
  margin: 0 auto;
  padding: 18px 20px 0;
  width: 100%;
}

.page-breadcrumb ol {
  display: flex;
  gap: 6px;
  font-size: 14px;
}

.page-breadcrumb li {
  display: flex;
  align-items: center;
  gap: 6px;
}

.page-breadcrumb li + li::before {
  content: '/';
  color: #95A5A6;
}

.page-breadcrumb a {
  color: #3A9B8E;
}

.page-breadcrumb a:hover {
  color: #1B3A5C;
}

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

.page-title {
  font-size: 30px;
  color: #1B3A5C;
  margin-bottom: 8px;
}

.page-title-area {
  margin-top: 12px;
  margin-bottom: 28px;
  padding: 16px 20px;
  background-color: rgba(255, 255, 255, 0.8);
  border-left: 4px solid #3A9B8E;
  border-radius: 4px;
}

.page-title-area p {
  margin: 0;
  font-size: 15px;
  color: #5D6D7E;
}

.page-subtitle {
  margin-top: 6px;
  font-size: 15px;
  color: #5D6D7E;
}

.page-title-desc {
  font-size: 15px;
  color: #5D6D7E;
}

.page-lead {
  font-size: 16px;
  color: #2C3E50;
  margin-bottom: 10px;
}

/* ============================================================
   COMPONENTS — 通用组件
   ============================================================ */
/* 按钮 */
.btn-primary,
.btn-secondary {
  display: inline-block;
  padding: 10px 24px;
  font-size: 15px;
  font-weight: 600;
  border-radius: 6px;
  cursor: pointer;
  transition: background-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
  text-align: center;
}

.btn-primary {
  background-color: #E8853D;
  color: #ffffff;
  border: 2px solid #E8853D;
}

.btn-primary:hover {
  background-color: #d9772e;
  color: #ffffff;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(232, 133, 61, 0.3);
}

.btn-secondary {
  background-color: transparent;
  color: #1B3A5C;
  border: 2px solid #1B3A5C;
}

.btn-secondary:hover {
  background-color: #1B3A5C;
  color: #ffffff;
}

.btn {
  display: inline-block;
  padding: 10px 24px;
  font-size: 15px;
  font-weight: 600;
  border-radius: 6px;
  cursor: pointer;
  transition: background-color 0.2s ease, transform 0.2s ease;
  background-color: #3A9B8E;
  color: #ffffff;
  border: none;
}

.btn:hover {
  background-color: #32897d;
  color: #ffffff;
}

/* 图例 */
.map-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 16px;
}

.map-legend span,
.legend-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: #5D6D7E;
}

.legend-dot {
  display: inline-block;
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.legend-dot-blue,
.legend-blue {
  background-color: #1B3A5C;
}

.legend-dot-teal,
.legend-teal {
  background-color: #3A9B8E;
}

.legend-dot-orange,
.legend-orange {
  background-color: #E8853D;
}

.legend-dot-red,
.legend-red {
  background-color: #C0392B;
}

.legend-dot-green,
.legend-green {
  background-color: #27AE60;
}

.legend-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 8px;
}

/* 卡片通用 */
.map-card,
.service-card,
.risk-type-card,
.faq-card,
.step-card,
.direction-card,
.sidebar-card,
.boundary-zone {
  background-color: #ffffff;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(27, 58, 92, 0.08);
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.map-card:hover,
.service-card:hover,
.risk-type-card:hover,
.faq-card:hover,
.step-card:hover,
.direction-card:hover,
.sidebar-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 16px rgba(27, 58, 92, 0.12);
}

/* 表格 */
.table-wrapper {
  overflow-x: auto;
  margin: 16px 0;
}

.service-table,
.parameter-table {
  width: 100%;
  font-size: 14px;
  border: 1px solid #E5E8EC;
}

.service-table th,
.service-table td,
.parameter-table th,
.parameter-table td {
  padding: 12px 14px;
  text-align: left;
  border-bottom: 1px solid #E5E8EC;
  vertical-align: top;
}

.service-table thead th,
.parameter-table thead th {
  background-color: #1B3A5C;
  color: #ffffff;
  font-weight: 600;
  white-space: nowrap;
}

.service-table tbody tr:nth-child(even),
.parameter-table tbody tr:nth-child(even) {
  background-color: #F8FAFC;
}

.service-table tbody tr:hover,
.parameter-table tbody tr:hover {
  background-color: #EEF4F3;
}

.table-note {
  font-size: 13px;
  color: #7F8C8D;
  margin-top: 8px;
}

/* 相关链接 */
.related-links {
  max-width: 1200px;
  margin: 0 auto;
  padding: 24px 20px 32px;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}

.related-links-label {
  font-size: 14px;
  font-weight: 600;
  color: #1B3A5C;
}

.related-links-item {
  font-size: 14px;
  color: #3A9B8E;
  padding: 4px 8px;
  border-radius: 4px;
  background-color: rgba(58, 155, 142, 0.1);
}

.related-links-item:hover {
  background-color: rgba(58, 155, 142, 0.2);
  color: #1B3A5C;
}

/* ============================================================
   PAGES — 首页
   ============================================================ */
.site-home {
  background-color: #F5F7FA;
}

.home-main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Hero */
.hero-section {
  padding: 48px 0 40px;
}

.hero-layout {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 40px;
  align-items: center;
}

.hero-copy h1 {
  font-size: 32px;
  margin-bottom: 16px;
  line-height: 1.3;
}

.hero-lead {
  font-size: 17px;
  color: #5D6D7E;
  margin-bottom: 24px;
}

.hero-cta {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.hero-visual {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.hero-figure {
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 4px 16px rgba(27, 58, 92, 0.15);
}

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

.service-snapshot {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px;
  background-color: #ffffff;
  border-radius: 8px;
  padding: 14px;
  box-shadow: 0 2px 8px rgba(27, 58, 92, 0.08);
}

.service-snapshot li {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: #2C3E50;
}

.dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
}

.dot-blue {
  background-color: #1B3A5C;
}

.dot-teal {
  background-color: #3A9B8E;
}

.dot-orange {
  background-color: #E8853D;
}

.dot-red {
  background-color: #C0392B;
}

/* Section 通用 */
.section-heading {
  margin-bottom: 20px;
}

.section-heading h2 {
  margin-bottom: 6px;
}

.section-heading p {
  color: #5D6D7E;
  font-size: 15px;
  margin: 0;
}

/* 服务地图 */
.service-map-section {
  padding: 40px 0;
}

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

.map-card {
  padding: 20px;
  border-top: 4px solid transparent;
  display: flex;
  flex-direction: column;
}

.map-card.card-blue {
  border-top-color: #1B3A5C;
}

.map-card.card-teal {
  border-top-color: #3A9B8E;
}

.map-card.card-orange {
  border-top-color: #E8853D;
}

.map-card.card-red {
  border-top-color: #C0392B;
}

.card-tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 3px;
  margin-bottom: 10px;
  align-self: flex-start;
}

.card-blue .card-tag {
  background-color: rgba(27, 58, 92, 0.1);
  color: #1B3A5C;
}

.card-teal .card-tag {
  background-color: rgba(58, 155, 142, 0.1);
  color: #3A9B8E;
}

.card-orange .card-tag {
  background-color: rgba(232, 133, 61, 0.1);
  color: #E8853D;
}

.card-red .card-tag {
  background-color: rgba(192, 57, 43, 0.1);
  color: #C0392B;
}

.map-card h3 {
  margin-bottom: 8px;
}

.map-card p {
  font-size: 14px;
  color: #5D6D7E;
  flex: 1;
  margin-bottom: 12px;
}

.map-card a {
  font-size: 14px;
  font-weight: 600;
  color: #3A9B8E;
}

.map-card a:hover {
  color: #1B3A5C;
}

/* 流程预览 */
.process-preview-section {
  padding: 40px 0;
}

.process-route {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  position: relative;
}

.process-route::before {
  content: '';
  position: absolute;
  top: 24px;
  left: 10%;
  right: 10%;
  border-top: 2px dashed #B8C6D0;
  z-index: 0;
}

.route-node {
  background-color: #ffffff;
  border-radius: 8px;
  padding: 24px 16px;
  text-align: center;
  position: relative;
  z-index: 1;
  box-shadow: 0 2px 8px rgba(27, 58, 92, 0.08);
}

.node-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background-color: #1B3A5C;
  color: #ffffff;
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 10px;
}

.route-node h3 {
  font-size: 16px;
  margin-bottom: 6px;
}

.route-node p {
  font-size: 13px;
  color: #7F8C8D;
  margin: 0;
}

.route-link {
  display: inline-block;
  margin-top: 20px;
  font-size: 14px;
  font-weight: 600;
  color: #3A9B8E;
}

.route-link:hover {
  color: #1B3A5C;
}

/* 热点问题 */
.hot-faq-section {
  padding: 40px 0;
}

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

.faq-card {
  padding: 20px;
  display: flex;
  flex-direction: column;
}

.faq-card h3 {
  font-size: 16px;
  margin-bottom: 10px;
}

.faq-card p {
  font-size: 14px;
  color: #5D6D7E;
  flex: 1;
  margin-bottom: 12px;
}

.faq-card a {
  font-size: 14px;
  font-weight: 600;
  color: #3A9B8E;
}

.faq-card a:hover {
  color: #1B3A5C;
}

/* 机构信息摘要 */
.about-summary-section {
  padding: 40px 0;
}

.about-summary-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  align-items: center;
  background-color: #ffffff;
  border-radius: 8px;
  padding: 28px;
  box-shadow: 0 2px 8px rgba(27, 58, 92, 0.08);
}

.about-copy h2 {
  margin-bottom: 12px;
}

.about-copy p {
  font-size: 15px;
  color: #5D6D7E;
}

.about-copy a {
  display: inline-block;
  margin-top: 8px;
  font-size: 14px;
  font-weight: 600;
  color: #3A9B8E;
}

.about-copy a:hover {
  color: #1B3A5C;
}

.about-visual {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.about-visual figure {
  border-radius: 8px;
  overflow: hidden;
}

.about-visual img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.about-visual .boundary-link {
  font-size: 14px;
  color: #7F8C8D;
  text-align: right;
}

.about-visual .boundary-link:hover {
  color: #1B3A5C;
}

/* ============================================================
   PAGES — 服务领域
   ============================================================ */
.page-services {
  background-color: #F5F7FA;
}

.page-layout {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 28px;
  align-items: start;
}

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

.service-map {
  margin-bottom: 32px;
}

.service-map h2,
.service-detail-table-section h2,
.service-audience h2 {
  margin-bottom: 8px;
}

.service-map > p,
.service-detail-table-section > p,
.service-audience > p {
  color: #5D6D7E;
  font-size: 15px;
  margin-bottom: 16px;
}

.service-grid .service-card {
  padding: 20px;
  border-top: 4px solid transparent;
  display: flex;
  flex-direction: column;
}

.service-card.service-card-blue {
  border-top-color: #1B3A5C;
}

.service-card.service-card-teal {
  border-top-color: #3A9B8E;
}

.service-card.service-card-orange {
  border-top-color: #E8853D;
}

.service-card.service-card-red {
  border-top-color: #C0392B;
}

.service-marker {
  display: inline-block;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  margin-bottom: 10px;
}

.service-card-blue .service-marker {
  background-color: #1B3A5C;
}

.service-card-teal .service-marker {
  background-color: #3A9B8E;
}

.service-card-orange .service-marker {
  background-color: #E8853D;
}

.service-card-red .service-marker {
  background-color: #C0392B;
}

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

.service-card p {
  font-size: 14px;
  color: #5D6D7E;
  flex: 1;
  margin-bottom: 12px;
}

.service-card a {
  font-size: 14px;
  font-weight: 600;
  color: #3A9B8E;
}

.service-card a:hover {
  color: #1B3A5C;
}

.service-detail-table-section {
  margin-bottom: 32px;
}

.service-audience ul {
  display: grid;
  gap: 8px;
}

.audience-list li {
  padding: 10px 14px;
  background-color: #ffffff;
  border-radius: 6px;
  border-left: 3px solid #3A9B8E;
  font-size: 14px;
  color: #2C3E50;
}

/* 侧栏 */
.sidebar-area {
  display: flex;
  flex-direction: column;
  gap: 20px;
  min-width: 0;
}

.boundary-note-card,
.map-legend-card {
  background-color: #ffffff;
  border-radius: 8px;
  padding: 20px;
  box-shadow: 0 2px 8px rgba(27, 58, 92, 0.08);
}

.boundary-note-card h2 {
  font-size: 18px;
  margin-bottom: 10px;
}

.boundary-note-card p {
  font-size: 14px;
  color: #5D6D7E;
}

.boundary-note-card ul {
  margin: 12px 0;
}

.boundary-note-card li {
  font-size: 13px;
  color: #7F8C8D;
  padding: 4px 0;
  border-bottom: 1px dashed #E5E8EC;
}

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

.boundary-link {
  font-size: 14px;
  font-weight: 600;
  color: #C0392B;
}

.boundary-link:hover {
  color: #1B3A5C;
}

.map-legend-card h3 {
  font-size: 15px;
  margin-bottom: 12px;
}

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

.legend-list li {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: #5D6D7E;
}

.legend-dot {
  flex-shrink: 0;
}

.sidebar-image {
  border-radius: 8px;
  overflow: hidden;
}

.sidebar-image img {
  width: 100%;
  height: 180px;
  object-fit: cover;
}

.sidebar-image figcaption {
  font-size: 13px;
  color: #7F8C8D;
  padding: 8px 4px;
  background-color: #ffffff;
  border-radius: 0 0 8px 8px;
}

/* ============================================================
   PAGES — 信息风险指南
   ============================================================ */
.page-guide {
  background-color: #F5F7FA;
}

.guide-article {
  max-width: 900px;
  margin: 0 auto;
}

.risk-types {
  margin-bottom: 40px;
}

.risk-types h2,
.parameter-table-section h2,
.method-list-section h2,
.compliance-note h2 {
  margin-bottom: 8px;
}

.risk-types > p,
.parameter-table-section > p,
.method-list-section > p {
  color: #5D6D7E;
  font-size: 15px;
  margin-bottom: 16px;
}

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

.risk-type-card {
  padding: 20px;
}

.risk-type-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
}

.risk-type-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 6px;
  background-color: rgba(27, 58, 92, 0.1);
  color: #1B3A5C;
  font-size: 14px;
  font-weight: 700;
}

.risk-type-card:nth-child(2) .risk-type-icon {
  background-color: rgba(58, 155, 142, 0.1);
  color: #3A9B8E;
}

.risk-type-card:nth-child(3) .risk-type-icon {
  background-color: rgba(232, 133, 61, 0.1);
  color: #E8853D;
}

.risk-type-card:nth-child(4) .risk-type-icon {
  background-color: rgba(192, 57, 43, 0.1);
  color: #C0392B;
}

.risk-type-card h3 {
  font-size: 16px;
}

.risk-type-card p {
  font-size: 14px;
  color: #5D6D7E;
}

.risk-scene {
  margin-top: 8px;
  padding-top: 8px;
  border-top: 1px dashed #E5E8EC;
}

.risk-scene strong {
  color: #1B3A5C;
}

.parameter-table-section {
  margin-bottom: 40px;
}

.method-list {
  counter-reset: method;
  display: grid;
  gap: 12px;
}

.method-list li {
  background-color: #ffffff;
  border-radius: 8px;
  padding: 16px 20px;
  box-shadow: 0 2px 8px rgba(27, 58, 92, 0.08);
  counter-increment: method;
  position: relative;
  padding-left: 56px;
}

.method-list li::before {
  content: counter(method);
  position: absolute;
  left: 16px;
  top: 16px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background-color: #1B3A5C;
  color: #ffffff;
  font-size: 13px;
  font-weight: 700;
}

.method-list h3 {
  font-size: 15px;
  margin-bottom: 4px;
}

.method-list p {
  font-size: 14px;
  color: #5D6D7E;
  margin: 0;
}

.compliance-note {
  background-color: #ffffff;
  border-radius: 8px;
  padding: 24px;
  box-shadow: 0 2px 8px rgba(27, 58, 92, 0.08);
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 24px;
  align-items: start;
}

.compliance-text h2 {
  margin-bottom: 10px;
}

.compliance-text p {
  font-size: 14px;
  color: #5D6D7E;
}

.compliance-text ul {
  margin: 12px 0;
}

.compliance-text li {
  font-size: 14px;
  color: #2C3E50;
  padding: 4px 0;
  padding-left: 18px;
  position: relative;
}

.compliance-text li::before {
  content: '•';
  position: absolute;
  left: 4px;
  color: #3A9B8E;
}

.guide-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 12px;
}

.guide-links a {
  font-size: 13px;
  font-weight: 600;
  color: #3A9B8E;
  padding: 4px 10px;
  background-color: rgba(58, 155, 142, 0.1);
  border-radius: 4px;
}

.guide-links a:hover {
  background-color: rgba(58, 155, 142, 0.2);
  color: #1B3A5C;
}

.compliance-figure {
  border-radius: 8px;
  overflow: hidden;
}

.compliance-figure img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.compliance-figure figcaption {
  font-size: 13px;
  color: #7F8C8D;
  padding: 8px 4px;
  background-color: #F5F7FA;
}

/* ============================================================
   PAGES — 合作流程
   ============================================================ */
.page-process {
  background-color: #F5F7FA;
}

.tool-panel {
  margin-bottom: 40px;
}

.tool-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  align-items: stretch;
}

.tool-options,
.tool-result {
  background-color: #ffffff;
  border-radius: 8px;
  padding: 24px;
  box-shadow: 0 2px 8px rgba(27, 58, 92, 0.08);
}

.option-group {
  margin-bottom: 20px;
}

.option-group:last-child {
  margin-bottom: 0;
}

.option-group h3 {
  font-size: 16px;
  margin-bottom: 12px;
  color: #1B3A5C;
}

.option-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.option-item {
  display: inline-flex;
  align-items: center;
  padding: 8px 14px;
  background-color: #F5F7FA;
  border-radius: 4px;
  cursor: pointer;
  font-size: 14px;
  color: #2C3E50;
  border: 1px solid #E5E8EC;
  transition: background-color 0.2s ease, border-color 0.2s ease;
}

.option-item:hover {
  background-color: rgba(58, 155, 142, 0.1);
  border-color: #3A9B8E;
}

.option-item input[type="radio"],
.option-item input[type="checkbox"] {
  margin-right: 6px;
}

.tool-result h3 {
  font-size: 16px;
  margin-bottom: 16px;
}

.route-list {
  display: grid;
  gap: 10px;
  margin-bottom: 16px;
}

.route-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  background-color: #F5F7FA;
  border-radius: 6px;
  border-left: 3px solid #3A9B8E;
}

.route-step {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background-color: #1B3A5C;
  color: #ffffff;
  font-size: 12px;
  font-weight: 700;
  flex-shrink: 0;
}

.route-text {
  font-size: 14px;
  color: #2C3E50;
}

.route-link {
  display: inline-block;
  font-size: 14px;
  font-weight: 600;
  color: #3A9B8E;
}

.route-link:hover {
  color: #1B3A5C;
}

.step-detail {
  margin-bottom: 40px;
}

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

.step-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.step-card {
  padding: 20px;
  position: relative;
}

.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background-color: #1B3A5C;
  color: #ffffff;
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 12px;
}

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

.step-card p {
  font-size: 14px;
  color: #5D6D7E;
}

.deliverable-list {
  margin-top: 10px;
  padding-top: 10px;
  border-top: 1px dashed #E5E8EC;
  font-size: 13px;
}

.deliverable-list dt {
  font-weight: 600;
  color: #1B3A5C;
}

.deliverable-list dd {
  color: #7F8C8D;
  margin-bottom: 6px;
}

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

.checklist-section .section-title {
  margin-bottom: 6px;
}

.section-description {
  color: #5D6D7E;
  font-size: 15px;
  margin-bottom: 16px;
}

.checklist {
  display: grid;
  gap: 10px;
  margin-bottom: 20px;
}

.checklist-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 12px 16px;
  background-color: #ffffff;
  border-radius: 6px;
  box-shadow: 0 2px 8px rgba(27, 58, 92, 0.08);
  font-size: 14px;
  color: #2C3E50;
}

.check-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  border-radius: 4px;
  background-color: rgba(58, 155, 142, 0.15);
  color: #3A9B8E;
  font-size: 12px;
  flex-shrink: 0;
  margin-top: 2px;
}

.process-image {
  border-radius: 8px;
  overflow: hidden;
  margin-top: 16px;
}

.process-image img {
  width: 100%;
  height: 220px;
  object-fit: cover;
}

.faq-link-card {
  background-color: #ffffff;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(27, 58, 92, 0.08);
  margin-bottom: 32px;
}

.faq-link-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 24px;
  flex-wrap: wrap;
}

.faq-link-text h3 {
  font-size: 18px;
  margin-bottom: 6px;
}

.faq-link-text p {
  font-size: 14px;
  color: #5D6D7E;
  margin: 0;
}

/* ============================================================
   PAGES — 常见问题
   ============================================================ */
.page-faq {
  background-color: #F5F7FA;
}

.faq-layout {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 28px;
  align-items: start;
  margin-bottom: 32px;
}

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

.faq-group {
  margin-bottom: 28px;
}

.faq-group h2 {
  font-size: 20px;
  margin-bottom: 14px;
  padding-bottom: 8px;
  border-bottom: 2px solid #3A9B8E;
}

.faq-list {
  display: grid;
  gap: 10px;
}

.faq-item {
  background-color: #ffffff;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(27, 58, 92, 0.08);
  overflow: hidden;
}

.faq-item summary {
  padding: 14px 18px;
  font-size: 15px;
  font-weight: 600;
  color: #1B3A5C;
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: background-color 0.2s ease;
}

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

.faq-item summary::after {
  content: '+';
  font-size: 20px;
  font-weight: 400;
  color: #3A9B8E;
  transition: transform 0.2s ease;
}

.faq-item[open] summary {
  background-color: rgba(58, 155, 142, 0.08);
}

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

.faq-item summary:hover {
  background-color: rgba(58, 155, 142, 0.05);
}

.faq-answer {
  padding: 0 18px 14px;
  font-size: 14px;
  color: #5D6D7E;
  border-top: 1px solid #F0F2F4;
  padding-top: 10px;
}

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

.faq-short {
  font-size: 13px;
  color: #7F8C8D;
  margin-bottom: 8px;
  font-weight: 600;
}

.faq-sidebar {
  display: flex;
  flex-direction: column;
  gap: 20px;
  min-width: 0;
}

.sidebar-card {
  padding: 20px;
}

.sidebar-card img {
  width: 100%;
  height: 140px;
  object-fit: cover;
  border-radius: 6px;
  margin-bottom: 12px;
}

.sidebar-card h2 {
  font-size: 16px;
  margin-bottom: 8px;
}

.sidebar-card p {
  font-size: 14px;
  color: #5D6D7E;
}

.sidebar-card a {
  font-size: 14px;
  font-weight: 600;
  color: #3A9B8E;
}

.sidebar-card a:hover {
  color: #1B3A5C;
}

.sidebar-links {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-top: 10px;
}

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

.guide-entry-card {
  background-color: #ffffff;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(27, 58, 92, 0.08);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 24px;
  flex-wrap: wrap;
}

.guide-text h2 {
  font-size: 18px;
  margin-bottom: 6px;
}

.guide-text p {
  font-size: 14px;
  color: #5D6D7E;
  margin: 0;
}

.guide-link {
  font-size: 14px;
  font-weight: 600;
  color: #3A9B8E;
  padding: 8px 16px;
  border: 1px solid #3A9B8E;
  border-radius: 6px;
  transition: background-color 0.2s ease, color 0.2s ease;
}

.guide-link:hover {
  background-color: #3A9B8E;
  color: #ffffff;
}

/* ============================================================
   PAGES — 服务边界
   ============================================================ */
.page-boundaries {
  background-color: #F5F7FA;
}

.boundary-map-section {
  margin-bottom: 40px;
}

.boundary-map-section h2,
.privacy-principles-section h2,
.feedback-note-section h2 {
  margin-bottom: 8px;
}

.boundary-map-section > p,
.privacy-principles-section > p {
  color: #5D6D7E;
  font-size: 15px;
  margin-bottom: 16px;
}

.boundary-map-layout {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 20px;
  align-items: stretch;
}

.boundary-zone {
  padding: 24px;
}

.boundary-zone-allow {
  border-top: 4px solid #27AE60;
}

.boundary-zone-deny {
  border-top: 4px solid #C0392B;
}

.boundary-zone h3 {
  font-size: 17px;
  margin-bottom: 16px;
}

.boundary-zone-allow h3 {
  color: #27AE60;
}

.boundary-zone-deny h3 {
  color: #C0392B;
}

.boundary-list {
  display: grid;
  gap: 12px;
}

.boundary-item {
  display: flex;
  gap: 10px;
  align-items: flex-start;
}

.boundary-marker {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  font-size: 12px;
  font-weight: 700;
  flex-shrink: 0;
  margin-top: 2px;
}

.boundary-marker-allow {
  background-color: rgba(39, 174, 96, 0.15);
  color: #27AE60;
}

.boundary-marker-deny {
  background-color: rgba(192, 57, 43, 0.15);
  color: #C0392B;
}

.boundary-item-content {
  font-size: 14px;
  color: #2C3E50;
  line-height: 1.6;
}

.boundary-divider {
  width: 2px;
  background: repeating-linear-gradient(
    to bottom,
    #B8C6D0 0,
    #B8C6D0 6px,
    transparent 6px,
    transparent 12px
  );
  align-self: stretch;
}

.privacy-principles-section {
  margin-bottom: 40px;
}

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

.principle-item {
  background-color: #ffffff;
  border-radius: 8px;
  padding: 20px;
  box-shadow: 0 2px 8px rgba(27, 58, 92, 0.08);
  display: flex;
  gap: 14px;
}

.principle-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 6px;
  background-color: #1B3A5C;
  color: #ffffff;
  font-size: 14px;
  font-weight: 700;
  flex-shrink: 0;
}

.principle-content h3 {
  font-size: 15px;
  margin-bottom: 6px;
}

.principle-content p {
  font-size: 14px;
  color: #5D6D7E;
  margin: 0;
}

.feedback-note-section {
  margin-bottom: 32px;
}

.feedback-layout {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 24px;
  align-items: center;
  background-color: #ffffff;
  border-radius: 8px;
  padding: 24px;
  box-shadow: 0 2px 8px rgba(27, 58, 92, 0.08);
}

.feedback-text p {
  font-size: 14px;
  color: #5D6D7E;
}

.feedback-figure {
  border-radius: 8px;
  overflow: hidden;
}

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

.feedback-figure figcaption {
  font-size: 13px;
  color: #7F8C8D;
  padding: 8px 4px;
}

/* ============================================================
   PAGES — 机构信息
   ============================================================ */
.page-about {
  background-color: #F5F7FA;
}

.intro-block {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 28px;
  align-items: center;
  margin-bottom: 40px;
  background-color: #ffffff;
  border-radius: 8px;
  padding: 28px;
  box-shadow: 0 2px 8px rgba(27, 58, 92, 0.08);
}

.intro-text h2 {
  margin-bottom: 12px;
}

.intro-text p {
  font-size: 15px;
  color: #5D6D7E;
}

.intro-figure {
  border-radius: 8px;
  overflow: hidden;
}

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

.intro-figure figcaption {
  font-size: 13px;
  color: #7F8C8D;
  padding: 8px 4px;
  background-color: #F5F7FA;
}

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

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

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

.direction-card {
  padding: 20px;
}

.direction-card h3 {
  font-size: 16px;
  margin-bottom: 8px;
}

.direction-card p {
  font-size: 14px;
  color: #5D6D7E;
}

.method-tag {
  display: inline-block;
  font-size: 13px;
  color: #3A9B8E;
  background-color: rgba(58, 155, 142, 0.1);
  padding: 4px 10px;
  border-radius: 4px;
  margin-top: 8px;
}

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

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

.mechanism-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  position: relative;
}

.mechanism-steps::before {
  content: '';
  position: absolute;
  top: 24px;
  left: 10%;
  right: 10%;
  border-top: 2px dashed #B8C6D0;
  z-index: 0;
}

.step-node {
  background-color: #ffffff;
  border-radius: 8px;
  padding: 24px 16px;
  text-align: center;
  position: relative;
  z-index: 1;
  box-shadow: 0 2px 8px rgba(27, 58, 92, 0.08);
}

.step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background-color: #1B3A5C;
  color: #ffffff;
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 10px;
}

.step-node h3 {
  font-size: 15px;
  margin-bottom: 6px;
}

.step-node p {
  font-size: 13px;
  color: #7F8C8D;
  margin: 0;
}

.disclosure-block {
  margin-bottom: 32px;
  background-color: #ffffff;
  border-radius: 8px;
  padding: 24px;
  box-shadow: 0 2px 8px rgba(27, 58, 92, 0.08);
}

.disclosure-block h2 {
  margin-bottom: 12px;
}

.disclosure-content p {
  font-size: 14px;
  color: #5D6D7E;
}

.disclosure-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 12px;
}

.disclosure-links li {
  display: inline-flex;
}

.disclosure-links a {
  font-size: 14px;
  font-weight: 600;
  color: #3A9B8E;
  padding: 6px 14px;
  background-color: rgba(58, 155, 142, 0.1);
  border-radius: 4px;
}

.disclosure-links a:hover {
  background-color: rgba(58, 155, 142, 0.2);
  color: #1B3A5C;
}

/* ============================================================
   PAGES — 404
   ============================================================ */
.site-error {
  background-color: #F5F7FA;
}

.error-main {
  display: flex;
  align-items: center;
  justify-content: center;
  max-width: 1200px;
  margin: 0 auto;
  padding: 60px 20px;
  flex: 1;
}

.error-panel {
  text-align: center;
  background-color: #ffffff;
  border-radius: 8px;
  padding: 48px 32px;
  box-shadow: 0 2px 8px rgba(27, 58, 92, 0.08);
  max-width: 520px;
  width: 100%;
}

.error-code {
  font-size: 64px;
  font-weight: 700;
  color: #1B3A5C;
  line-height: 1;
  margin-bottom: 12px;
}

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

.error-desc {
  font-size: 15px;
  color: #5D6D7E;
  margin-bottom: 24px;
}

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

/* ============================================================
   RESPONSIVE — 响应式
   ============================================================ */
@media (max-width: 992px) {
  .service-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

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

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

  .principle-item {
    flex-direction: column;
  }

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

@media (max-width: 768px) {
  .header-inner {
    min-height: 56px;
  }

  .nav-toggle {
    display: flex;
  }

  .main-nav {
    position: fixed;
    top: 56px;
    left: 0;
    right: 0;
    background-color: #1B3A5C;
    padding: 0;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
    z-index: 99;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
  }

  .main-nav.is-open {
    max-height: 400px;
    overflow-y: auto;
  }

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

  .main-nav a {
    padding: 12px 14px;
    font-size: 16px;
    min-height: 44px;
    display: flex;
    align-items: center;
  }

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

  .hero-copy h1 {
    font-size: 26px;
  }

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

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

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

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

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

  .boundary-divider {
    width: 100%;
    height: 2px;
    background: repeating-linear-gradient(
      to right,
      #B8C6D0 0,
      #B8C6D0 6px,
      transparent 6px,
      transparent 12px
    );
  }

  .compliance-note {
    grid-template-columns: 1fr;
  }

  .intro-block {
    grid-template-columns: 1fr;
  }

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

  .risk-type-grid {
    grid-template-columns: 1fr;
  }

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

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

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

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

  .process-route {
    grid-template-columns: 1fr;
  }

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

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

  .footer-inner {
    flex-direction: column;
    gap: 8px;
    text-align: center;
  }

  .footer-nav {
    gap: 12px;
  }

  .page-title-area {
    padding: 14px 16px;
  }

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

  .faq-link-content,
  .guide-entry-card {
    flex-direction: column;
    text-align: center;
  }

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

  .btn-primary,
  .btn-secondary {
    text-align: center;
  }

  .error-panel {
    padding: 32px 20px;
  }

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

@media (max-width: 480px) {
  .inner-main,
  .home-main,
  .header-inner,
  .footer-inner {
    padding-left: 16px;
    padding-right: 16px;
  }

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

  .hero-copy h1 {
    font-size: 24px;
  }

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

  .section-heading h2 {
    font-size: 20px;
  }

  .map-card,
  .service-card,
  .risk-type-card,
  .faq-card,
  .step-card,
  .direction-card {
    padding: 16px;
  }

  .tool-options,
  .tool-result,
  .boundary-zone,
  .compliance-note,
  .intro-block,
  .feedback-layout,
  .disclosure-block {
    padding: 16px;
  }

  .option-item {
    width: 100%;
    justify-content: flex-start;
  }
}

/* ============================================================
   ANIMATIONS — 滚动出现动画（增强，不影响初始可见性）
   ============================================================ */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.map-card,
.service-card,
.risk-type-card,
.faq-card,
.step-card,
.direction-card,
.principle-item,
.route-node,
.step-node {
  animation: fadeInUp 0.4s ease both;
}

.map-card:nth-child(2),
.service-card:nth-child(2),
.risk-type-card:nth-child(2),
.faq-card:nth-child(2),
.step-card:nth-child(2),
.direction-card:nth-child(2),
.principle-item:nth-child(2),
.route-node:nth-child(2),
.step-node:nth-child(2) {
  animation-delay: 0.05s;
}

.map-card:nth-child(3),
.service-card:nth-child(3),
.risk-type-card:nth-child(3),
.faq-card:nth-child(3),
.step-card:nth-child(3),
.direction-card:nth-child(3),
.principle-item:nth-child(3),
.route-node:nth-child(3),
.step-node:nth-child(3) {
  animation-delay: 0.1s;
}

.map-card:nth-child(4),
.service-card:nth-child(4),
.risk-type-card:nth-child(4),
.step-card:nth-child(4),
.route-node:nth-child(4),
.step-node:nth-child(4) {
  animation-delay: 0.15s;
}

.map-card:nth-child(5),
.service-card:nth-child(5),
.step-card:nth-child(5) {
  animation-delay: 0.2s;
}

.map-card:nth-child(6),
.service-card:nth-child(6),
.step-card:nth-child(6) {
  animation-delay: 0.25s;
}

@media (prefers-reduced-motion: reduce) {
  .map-card,
  .service-card,
  .risk-type-card,
  .faq-card,
  .step-card,
  .direction-card,
  .principle-item,
  .route-node,
  .step-node {
    animation: none;
  }
}