/* ============================================================
   BASE — 全站基础变量、重置与骨架
   ============================================================ */
:root {
  --color-primary: #0F2A3D;
  --color-primary-light: #1B3A52;
  --color-bg: #F4F6F8;
  --color-accent: #C8974A;
  --color-green: #1F7A5C;
  --color-red: #C0392B;
  --color-text: #1F2933;
  --color-text-light: #6B7280;
  --color-white: #FFFFFF;
  --color-border: #E0E4E8;
  --color-border-dark: #C8CDD3;
  --font-sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
  --container-width: 1200px;
  --radius: 6px;
  --radius-sm: 4px;
  --header-height: 68px;
  --transition: 0.2s ease;
}

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

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

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-text);
  background: 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 var(--transition);
}

a:hover {
  color: var(--color-accent);
}

ul,
ol {
  list-style: none;
}

h1,
h2,
h3,
h4 {
  color: var(--color-primary);
  line-height: 1.3;
  font-weight: 700;
}

h1 {
  font-size: 36px;
}

h2 {
  font-size: 26px;
}

h3 {
  font-size: 18px;
}

/* ============================================================
   LAYOUT — 全站骨架：页头、页脚、容器、主内容
   ============================================================ */

.site-header {
  background: var(--color-white);
  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-block {
  flex-shrink: 0;
}

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

.brand-name {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: 0;
}

.brand-tagline {
  font-size: 12px;
  color: var(--color-text-light);
  white-space: nowrap;
}

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

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

.nav-item {
  position: relative;
}

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

.nav-link:hover {
  color: var(--color-primary);
  background: var(--color-bg);
}

.nav-link.is-current {
  color: var(--color-primary);
  font-weight: 600;
  background: var(--color-bg);
}

.nav-link.is-current::after {
  content: "";
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 2px;
  height: 2px;
  background: var(--color-accent);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 10px;
  background: none;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
}

.toggle-bar {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--color-primary);
  transition: transform var(--transition), opacity var(--transition);
}

.site-main {
  flex: 1;
}

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

/* 页脚 */
.site-footer {
  background: var(--color-primary);
  color: #C8D0D8;
  margin-top: auto;
}

.footer-inner {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 48px 24px 32px;
}

.footer-brand {
  margin-bottom: 32px;
}

.footer-slogan {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-white);
  margin-bottom: 8px;
}

.footer-desc {
  font-size: 14px;
  color: #9AA8B5;
  max-width: 560px;
}

.footer-nav {
  margin-bottom: 32px;
}

.footer-nav-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
}

.footer-link {
  font-size: 14px;
  color: #C8D0D8;
}

.footer-link:hover {
  color: var(--color-white);
}

.footer-legal {
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding-top: 24px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.legal-tip {
  font-size: 13px;
  color: #9AA8B5;
  line-height: 1.6;
}

.copyright {
  font-size: 13px;
  color: #7E8B98;
}

/* ============================================================
   COMPONENTS — 通用组件：面包屑、页面标题、按钮、表格、FAQ
   ============================================================ */

/* 面包屑 */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--color-text-light);
  margin-bottom: 16px;
}

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

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

.breadcrumb-sep {
  color: var(--color-border-dark);
}

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

/* 页面标题区 */
.page-header {
  margin-bottom: 24px;
}

.page-title {
  font-size: 36px;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1.25;
}

.page-intro,
.page-lead {
  font-size: 16px;
  color: var(--color-text-light);
  margin-top: 12px;
  max-width: 720px;
}

.page-title-block {
  margin-bottom: 24px;
}

/* 区块标题 */
.section-title {
  font-size: 26px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 12px;
}

.section-intro,
.section-lead,
.section-desc {
  font-size: 15px;
  color: var(--color-text-light);
  margin-bottom: 20px;
  max-width: 720px;
}

.section-heading {
  margin-bottom: 24px;
}

/* 表格 */
.table-wrap {
  overflow-x: auto;
  margin-bottom: 16px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-white);
}

.service-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 15px;
  min-width: 640px;
}

.service-table th,
.service-table td {
  padding: 14px 16px;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
  vertical-align: top;
}

.service-table th {
  background: var(--color-primary);
  color: var(--color-white);
  font-weight: 600;
  white-space: nowrap;
}

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

.service-table tbody tr:hover {
  background: #F0F4F7;
}

.table-note {
  font-size: 13px;
  color: var(--color-text-light);
  margin-bottom: 24px;
  padding-left: 12px;
  border-left: 3px solid var(--color-accent);
}

/* FAQ 手风琴 */
.faq-item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-white);
  margin-bottom: 12px;
  overflow: hidden;
}

.faq-question {
  padding: 16px 20px;
  font-size: 16px;
  font-weight: 600;
  color: var(--color-primary);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  list-style: none;
}

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

.faq-question::after {
  content: "+";
  font-size: 22px;
  font-weight: 400;
  color: var(--color-accent);
  flex-shrink: 0;
  transition: transform var(--transition);
}

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

.faq-answer {
  padding: 0 20px 16px;
  font-size: 15px;
  color: var(--color-text);
  line-height: 1.7;
}

.faq-note {
  font-size: 13px;
  color: var(--color-text-light);
  margin-top: 8px;
  padding-left: 12px;
  border-left: 3px solid var(--color-accent);
}

/* 按钮 */
.btn-primary,
.btn-secondary {
  display: inline-block;
  padding: 12px 28px;
  font-size: 16px;
  font-weight: 600;
  border-radius: var(--radius);
  text-align: center;
  min-height: 44px;
  line-height: 1.4;
}

.btn-primary {
  background: var(--color-primary);
  color: var(--color-white);
}

.btn-primary:hover {
  background: var(--color-primary-light);
  color: var(--color-white);
}

.btn-secondary {
  background: var(--color-white);
  color: var(--color-primary);
  border: 1px solid var(--color-border-dark);
}

.btn-secondary:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

/* 图片与图注 */
.figure-caption,
figcaption {
  font-size: 13px;
  color: var(--color-text-light);
  margin-top: 10px;
  text-align: center;
  line-height: 1.5;
}

figure {
  margin: 0;
}

/* ============================================================
   PAGES — 首页
   ============================================================ */

/* 首屏数据面板 */
.hero-panel {
  background: var(--color-primary);
  color: var(--color-white);
  padding: 64px 0 48px;
}

.hero-content {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 48px;
  align-items: center;
}

.hero-title {
  font-size: 36px;
  color: var(--color-white);
  margin-bottom: 16px;
  line-height: 1.3;
}

.hero-lead {
  font-size: 17px;
  color: #C8D0D8;
  margin-bottom: 24px;
  max-width: 520px;
}

.hero-entry {
  display: inline-block;
  padding: 12px 32px;
  background: var(--color-accent);
  color: var(--color-white);
  font-weight: 600;
  border-radius: var(--radius);
  min-height: 44px;
  line-height: 1.4;
}

.hero-entry:hover {
  background: #B07F3A;
  color: var(--color-white);
}

.hero-figure {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius);
  padding: 16px;
}

.hero-image {
  width: 100%;
  height: auto;
  border-radius: var(--radius-sm);
}

.hero-figure .figure-caption {
  color: #9AA8B5;
}

.hero-meta {
  max-width: var(--container-width);
  margin: 40px auto 0;
  padding: 0 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  padding-top: 24px;
}

.meta-note {
  font-size: 14px;
  color: #9AA8B5;
  margin-bottom: 16px;
  font-family: var(--font-mono);
}

.dimension-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.dimension-item {
  font-size: 14px;
  color: #C8D0D8;
  padding: 10px 14px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
}

/* 结论导语带 */
.conclusion-strip {
  background: var(--color-accent);
  padding: 20px 0;
}

.conclusion-text {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
  font-size: 16px;
  font-weight: 600;
  color: var(--color-primary);
  text-align: center;
}

/* 核心服务矩阵 */
.service-matrix {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 64px 24px;
}

.matrix-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 16px;
}

.service-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: box-shadow var(--transition), border-color var(--transition);
}

.service-card:hover {
  border-color: var(--color-border-dark);
  box-shadow: 0 4px 12px rgba(15, 42, 61, 0.08);
}

.service-card-wide {
  grid-column: span 1;
  background: var(--color-primary);
  border-color: var(--color-primary);
}

.service-card-wide .service-title {
  color: var(--color-white);
}

.service-card-wide .service-summary {
  color: #C8D0D8;
}

.service-card-wide .service-points li {
  color: #C8D0D8;
}

.service-card-wide .service-link {
  color: var(--color-accent);
}

.service-card-wide .service-link:hover {
  color: var(--color-white);
}

.service-title {
  font-size: 20px;
  font-weight: 700;
}

.service-summary {
  font-size: 15px;
  color: var(--color-text-light);
}

.service-points li {
  font-size: 14px;
  color: var(--color-text);
  padding-left: 16px;
  position: relative;
  margin-bottom: 6px;
}

.service-points li::before {
  content: "—";
  position: absolute;
  left: 0;
  color: var(--color-accent);
}

.service-link {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-primary);
  margin-top: auto;
  display: inline-block;
}

.matrix-note {
  font-size: 13px;
  color: var(--color-text-light);
  padding-left: 12px;
  border-left: 3px solid var(--color-accent);
}

/* 服务场景说明 */
.scenario-section {
  background: var(--color-white);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  padding: 64px 0;
}

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

.scenario-grid {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 24px 24px 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.scenario-card {
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: border-color var(--transition);
}

.scenario-card:hover {
  border-color: var(--color-accent);
}

.scenario-name {
  font-size: 18px;
  font-weight: 600;
}

.scenario-desc {
  font-size: 15px;
  color: var(--color-text-light);
  flex: 1;
}

.scenario-link {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-primary);
}

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

.scenario-image {
  width: 100%;
  height: auto;
  border-radius: var(--radius);
}

/* 合作流程预览 */
.process-preview {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 64px 24px;
}

.process-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 24px;
}

.process-step {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  transition: border-color var(--transition);
}

.process-step:hover {
  border-color: var(--color-accent);
}

.process-step .step-number {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--color-accent);
  font-weight: 600;
}

.process-step .step-name {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-primary);
}

.process-step .step-brief {
  font-size: 14px;
  color: var(--color-text-light);
}

.process-link {
  display: inline-block;
  font-size: 15px;
  font-weight: 600;
  color: var(--color-primary);
  padding: 10px 24px;
  border: 1px solid var(--color-border-dark);
  border-radius: var(--radius);
  min-height: 44px;
  line-height: 1.4;
}

.process-link:hover {
  border-color: var(--color-primary);
  background: var(--color-primary);
  color: var(--color-white);
}

/* 信息指南入口 */
.guide-entry {
  background: var(--color-white);
  border-top: 1px solid var(--color-border);
  padding: 64px 0;
}

.guide-entry .section-title {
  max-width: var(--container-width);
  margin-left: auto;
  margin-right: auto;
  padding: 0 24px;
}

.guide-grid {
  max-width: var(--container-width);
  margin: 24px auto 0;
  padding: 0 24px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.guide-card {
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.guide-card:hover {
  border-color: var(--color-accent);
  box-shadow: 0 4px 12px rgba(15, 42, 61, 0.06);
}

.guide-name {
  font-size: 18px;
  font-weight: 600;
}

.guide-desc {
  font-size: 14px;
  color: var(--color-text-light);
  flex: 1;
}

.guide-link {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-primary);
}

/* FAQ 预览 */
.faq-preview {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 64px 24px;
}

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

.faq-more {
  display: inline-block;
  font-size: 15px;
  font-weight: 600;
  color: var(--color-primary);
  padding: 10px 24px;
  border: 1px solid var(--color-border-dark);
  border-radius: var(--radius);
  min-height: 44px;
  line-height: 1.4;
}

.faq-more:hover {
  border-color: var(--color-primary);
  background: var(--color-primary);
  color: var(--color-white);
}

/* 合作咨询 */
.contact-block {
  background: var(--color-primary);
  padding: 64px 0;
}

.contact-block .section-title {
  color: var(--color-white);
}

.contact-block .section-title,
.contact-desc {
  max-width: var(--container-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: 24px;
  padding-right: 24px;
}

.contact-desc {
  font-size: 16px;
  color: #C8D0D8;
  margin-top: 12px;
  margin-bottom: 24px;
}

.contact-links {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.contact-link {
  display: inline-block;
  padding: 12px 28px;
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: var(--radius);
  color: var(--color-white);
  font-size: 15px;
  font-weight: 500;
  min-height: 44px;
  line-height: 1.4;
}

.contact-link:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

/* ============================================================
   PAGES — 内页通用
   ============================================================ */

.inner-main {
  padding: 40px 0 64px;
}

.inner-main .container {
  padding-top: 0;
}

/* 内页布局壳 */
.layout-shell {
  width: 100%;
}

.page-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: 32px;
  align-items: start;
}

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

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

/* 侧栏卡片 */
.sidebar-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 20px;
}

.sidebar-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--color-border);
}

.sidebar-figure {
  margin: 0;
}

.sidebar-figure img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-sm);
}

.sidebar-figure figcaption {
  font-size: 13px;
  color: var(--color-text-light);
  margin-top: 8px;
  text-align: left;
}

.sidebar-nav {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 20px;
}

.sidebar-link-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.sidebar-link-list a {
  display: block;
  padding: 8px 10px;
  font-size: 14px;
  color: var(--color-text);
  border-radius: var(--radius-sm);
}

.sidebar-link-list a:hover {
  background: var(--color-bg);
  color: var(--color-primary);
}

/* 服务边界 */
.service-boundary-block {
  margin-top: 32px;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 24px;
}

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

.boundary-list li {
  font-size: 14px;
  color: var(--color-text);
  padding-left: 18px;
  position: relative;
}

.boundary-list li::before {
  content: "·";
  position: absolute;
  left: 4px;
  font-size: 18px;
  color: var(--color-accent);
  line-height: 1.4;
}

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

.related-links-label,
.related-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-primary);
}

.related-links-item {
  font-size: 14px;
  color: var(--color-text-light);
}

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

.related-list {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.related-list a {
  font-size: 14px;
  color: var(--color-text-light);
}

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

/* ============================================================
   PAGES — 方法说明页
   ============================================================ */

.method-overview,
.method-detail,
.method-limits {
  margin-bottom: 48px;
}

.method-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 24px;
}

.method-step-item {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 20px;
  transition: border-color var(--transition);
}

.method-step-item:hover {
  border-color: var(--color-accent);
}

.method-step-item .step-number {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--color-accent);
  font-weight: 600;
  display: block;
  margin-bottom: 8px;
}

.method-step-item h3 {
  font-size: 16px;
  margin-bottom: 6px;
}

.method-step-item p {
  font-size: 14px;
  color: var(--color-text-light);
}

.method-figure {
  margin-top: 24px;
}

.method-figure img {
  width: 100%;
  height: auto;
  border-radius: var(--radius);
}

.method-figure figcaption {
  font-size: 13px;
  color: var(--color-text-light);
  margin-top: 8px;
  text-align: center;
}

.method-block {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 24px;
  margin-bottom: 16px;
}

.method-block h3 {
  font-size: 18px;
  margin-bottom: 10px;
}

.method-block p {
  font-size: 15px;
  color: var(--color-text);
  margin-bottom: 12px;
}

.method-points {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.method-points li {
  font-size: 14px;
  color: var(--color-text-light);
  padding-left: 16px;
  position: relative;
}

.method-points li::before {
  content: "—";
  position: absolute;
  left: 0;
  color: var(--color-accent);
}

.method-limits {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 24px;
}

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

.limit-list li {
  font-size: 14px;
  color: var(--color-text);
  padding-left: 18px;
  position: relative;
}

.limit-list li::before {
  content: "·";
  position: absolute;
  left: 4px;
  font-size: 18px;
  color: var(--color-red);
  line-height: 1.4;
}

/* ============================================================
   PAGES — 合作流程页
   ============================================================ */

.process-overview-figure {
  margin-bottom: 40px;
}

.process-overview-figure img {
  width: 100%;
  height: auto;
  border-radius: var(--radius);
}

.process-overview-figure figcaption {
  font-size: 13px;
  color: var(--color-text-light);
  margin-top: 8px;
  text-align: center;
}

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

.timeline-item {
  position: relative;
  padding-left: 32px;
  margin-bottom: 24px;
}

.timeline-item::before {
  content: "";
  position: absolute;
  left: 8px;
  top: 0;
  bottom: -24px;
  width: 2px;
  background: var(--color-border);
}

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

.timeline-item::after {
  content: "";
  position: absolute;
  left: 3px;
  top: 20px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--color-accent);
  border: 2px solid var(--color-white);
  box-shadow: 0 0 0 2px var(--color-accent);
}

.timeline-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 24px;
}

.timeline-stage-title {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 8px;
}

.timeline-meta {
  font-size: 14px;
  color: var(--color-text-light);
  margin-bottom: 4px;
  font-family: var(--font-mono);
}

.timeline-desc {
  font-size: 15px;
  color: var(--color-text);
  margin-bottom: 12px;
}

.client-tasks {
  background: var(--color-bg);
  border-radius: var(--radius-sm);
  padding: 16px;
}

.client-tasks-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.client-task-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.client-task-list li {
  font-size: 14px;
  color: var(--color-text);
  padding-left: 16px;
  position: relative;
}

.client-task-list li::before {
  content: "—";
  position: absolute;
  left: 0;
  color: var(--color-accent);
}

.consultation-tip-section {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 32px;
  text-align: center;
}

.tip-desc {
  font-size: 15px;
  color: var(--color-text-light);
  margin-bottom: 20px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.tip-link {
  display: inline-block;
  padding: 12px 32px;
  background: var(--color-primary);
  color: var(--color-white);
  border-radius: var(--radius);
  font-weight: 600;
  min-height: 44px;
  line-height: 1.4;
}

.tip-link:hover {
  background: var(--color-primary-light);
  color: var(--color-white);
}

/* ============================================================
   PAGES — 信息指南页
   ============================================================ */

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

.guide-figure-image {
  width: 100%;
  height: auto;
  border-radius: var(--radius);
}

.category-index-section,
.scope-section,
.related-entry-section {
  margin-bottom: 48px;
}

.category-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.category-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.category-card:hover {
  border-color: var(--color-accent);
  box-shadow: 0 4px 12px rgba(15, 42, 61, 0.06);
}

.category-name {
  font-size: 18px;
  font-weight: 600;
}

.category-desc {
  font-size: 14px;
  color: var(--color-text-light);
  flex: 1;
}

.category-link {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-primary);
}

.scope-item {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 24px;
  margin-bottom: 16px;
}

.scope-title {
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--color-border);
}

.scope-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px 24px;
}

.scope-list li {
  font-size: 14px;
  color: var(--color-text);
  padding-left: 16px;
  position: relative;
}

.scope-list li::before {
  content: "—";
  position: absolute;
  left: 0;
  color: var(--color-accent);
}

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

.entry-link {
  display: inline-block;
  padding: 10px 24px;
  border: 1px solid var(--color-border-dark);
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 600;
  color: var(--color-primary);
  min-height: 44px;
  line-height: 1.4;
}

.entry-link:hover {
  border-color: var(--color-primary);
  background: var(--color-primary);
  color: var(--color-white);
}

/* ============================================================
   PAGES — 常见问题页
   ============================================================ */

.page-heading {
  margin-bottom: 24px;
}

.content-media-inline {
  margin: 24px 0;
}

.content-media img {
  width: 100%;
  height: auto;
  border-radius: var(--radius);
}

.faq-nav {
  display: flex;
  gap: 12px;
  margin-bottom: 32px;
  flex-wrap: wrap;
}

.faq-nav-link {
  display: inline-block;
  padding: 10px 20px;
  border: 1px solid var(--color-border-dark);
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text);
  min-height: 44px;
  line-height: 1.4;
}

.faq-nav-link:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

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

.faq-group-title {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--color-accent);
  display: inline-block;
}

.faq-boundary {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 32px;
  margin-bottom: 40px;
}

.boundary-title {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 8px;
}

.boundary-intro {
  font-size: 15px;
  color: var(--color-text-light);
  margin-bottom: 20px;
}

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

.boundary-block {
  background: var(--color-bg);
  border-radius: var(--radius);
  padding: 20px;
}

.boundary-subtitle {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--color-primary);
}

.faq-cta {
  text-align: center;
  padding: 24px 0;
}

.cta-text {
  font-size: 16px;
  color: var(--color-text-light);
}

.cta-text a {
  margin: 0 8px;
  font-weight: 600;
}

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

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

.about-location-section,
.compliance-section,
.data-policy-section,
.consult-entry-section {
  margin-bottom: 48px;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 28px;
}

.about-location-section h2,
.compliance-section h2,
.data-policy-section h2,
.consult-entry-section h2 {
  font-size: 22px;
  margin-bottom: 12px;
}

.about-location-section p,
.compliance-section p,
.data-policy-section p,
.consult-entry-section p {
  font-size: 15px;
  color: var(--color-text);
  margin-bottom: 16px;
}

.location-points-list,
.compliance-list,
.policy-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.location-points-list li,
.compliance-list li,
.policy-list li {
  font-size: 14px;
  color: var(--color-text);
  padding-left: 18px;
  position: relative;
}

.location-points-list li::before,
.policy-list li::before {
  content: "·";
  position: absolute;
  left: 4px;
  font-size: 18px;
  color: var(--color-accent);
  line-height: 1.4;
}

.compliance-list li::before {
  content: "·";
  position: absolute;
  left: 4px;
  font-size: 18px;
  color: var(--color-red);
  line-height: 1.4;
}

.archive-figure {
  margin-bottom: 48px;
}

.archive-figure img {
  width: 100%;
  height: auto;
  border-radius: var(--radius);
}

.archive-figure figcaption {
  font-size: 13px;
  color: var(--color-text-light);
  margin-top: 8px;
  text-align: center;
}

.consult-entry-section p a {
  margin-right: 16px;
  font-weight: 600;
}

/* ============================================================
   PAGES — 404 页
   ============================================================ */

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

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

.error-code {
  font-family: var(--font-mono);
  font-size: 64px;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1.2;
  margin-bottom: 8px;
}

.error-section h1 {
  font-size: 28px;
  margin-bottom: 12px;
}

.error-desc {
  font-size: 16px;
  color: var(--color-text-light);
  margin-bottom: 24px;
}

.error-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 16px;
}

.error-help {
  font-size: 14px;
  color: var(--color-text-light);
}

/* ============================================================
   RESPONSIVE — 响应式规则
   ============================================================ */

@media (max-width: 1024px) {
  .hero-content {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }

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

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

@media (max-width: 768px) {
  /* 导航切换 */
  .nav-toggle {
    display: flex;
  }

  .main-nav {
    position: static;
  }

  .nav-list {
    display: none;
    position: absolute;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: var(--color-white);
    border-bottom: 1px solid var(--color-border);
    flex-direction: column;
    padding: 12px 24px;
    gap: 4px;
    box-shadow: 0 8px 16px rgba(15, 42, 61, 0.1);
  }

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

  .nav-link {
    padding: 12px 14px;
    font-size: 16px;
  }

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

  /* 首页 */
  .hero-panel {
    padding: 40px 0 32px;
  }

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

  .hero-title {
    font-size: 28px;
  }

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

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

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

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

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

  .contact-links {
    flex-direction: column;
  }

  .contact-link {
    text-align: center;
  }

  /* 内页 */
  .inner-main {
    padding: 24px 0 48px;
  }

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

  .sidebar-content {
    order: 2;
  }

  .page-title {
    font-size: 28px;
  }

  /* 方法页 */
  .method-steps {
    grid-template-columns: 1fr 1fr;
  }

  /* 信息指南 */
  .scope-list {
    grid-template-columns: 1fr;
  }

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

  .faq-nav {
    flex-wrap: nowrap;
    overflow-x: auto;
    padding-bottom: 8px;
  }

  .faq-nav-link {
    white-space: nowrap;
  }

  /* 页脚 */
  .footer-inner {
    padding: 32px 24px 24px;
  }

  .footer-nav-list {
    flex-direction: column;
    gap: 8px;
  }
}

@media (max-width: 480px) {
  .header-inner {
    padding: 0 16px;
  }

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

  .brand-tagline {
    display: none;
  }

  .container,
  .hero-content,
  .hero-meta,
  .service-matrix,
  .scenario-section .section-title,
  .scenario-grid,
  .scenario-figure,
  .process-preview,
  .guide-entry .section-title,
  .guide-grid,
  .faq-preview,
  .contact-block .section-title,
  .contact-desc,
  .contact-links,
  .page-container {
    padding-left: 16px;
    padding-right: 16px;
  }

  .hero-panel {
    padding: 32px 0 24px;
  }

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

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

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

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

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

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

  .service-table {
    min-width: 520px;
  }

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

  .timeline-card {
    padding: 16px;
  }

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