/* =========================================================
   jnjlgj.com 黑料反差 · 全站样式表
   视觉方向：公共交通站厅风
   ========================================================= */

/* =========================================================
   Base
   ========================================================= */
*,
*::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: 1.75;
  color: #222E3C;
  background-color: #F4F6F8;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

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

a {
  color: #1B3A6B;
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: #FF6A13;
}

ul,
ol {
  list-style: none;
}

h1,
h2,
h3,
h4 {
  font-weight: 700;
  line-height: 1.3;
  color: #1B3A6B;
}

/* 等宽数字用于站点编号与步骤号 */
.station-no,
.line-code,
.node-no,
.step-no,
.step-num,
.item-no,
.dimension-num,
.scenario-num,
.detail-index,
.section-no,
.section-code,
.faq-group-no,
.topic-no,
.recommend-no,
.related-card-no,
.principle-index,
.object-code,
.coop-tag,
.error-code {
  font-variant-numeric: tabular-nums;
  font-feature-settings: "tnum";
}

/* =========================================================
   Layout · 全站统一骨架
   ========================================================= */

/* 页头 */
.site-header {
  background-color: #1B3A6B;
  color: #FFFFFF;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 8px rgba(27, 58, 107, 0.18);
}

.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 64px;
  gap: 24px;
}

.brand-block {
  flex-shrink: 0;
}

.brand-link {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #FFFFFF;
  font-weight: 700;
  font-size: 18px;
  letter-spacing: 0.02em;
}

.brand-link:hover {
  color: #FFFFFF;
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  background-color: #FF6A13;
  border-radius: 6px;
  font-size: 16px;
  font-weight: 700;
  color: #FFFFFF;
  flex-shrink: 0;
}

.brand-slogan {
  font-size: 14px;
  font-weight: 400;
  color: rgba(255, 255, 255, 0.85);
  margin-left: 4px;
}

/* 主导航 */
.main-nav {
  display: flex;
  align-items: center;
}

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

.nav-item {
  position: relative;
}

.nav-link {
  display: block;
  padding: 10px 14px;
  color: rgba(255, 255, 255, 0.9);
  font-size: 15px;
  font-weight: 500;
  border-radius: 4px;
  transition: background-color 0.2s ease, color 0.2s ease;
  min-height: 44px;
  line-height: 24px;
}

.nav-link:hover {
  color: #FFFFFF;
  background-color: rgba(255, 255, 255, 0.14);
}

.nav-link.is-current {
  color: #FFFFFF;
  background-color: rgba(255, 255, 255, 0.18);
  font-weight: 700;
}

.nav-link.is-current::after {
  content: "";
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 2px;
  height: 3px;
  background-color: #FF6A13;
  border-radius: 2px;
}

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

.toggle-bar {
  display: block;
  width: 24px;
  height: 2px;
  background-color: #FFFFFF;
  border-radius: 2px;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

/* 面包屑 */
.breadcrumb {
  max-width: 1200px;
  margin: 0 auto;
  padding: 14px 24px 0;
  font-size: 14px;
  color: #5A6B7C;
  width: 100%;
}

.breadcrumb-inner {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
}

.breadcrumb a,
.breadcrumb .breadcrumb-link {
  color: #1B3A6B;
}

.breadcrumb a:hover,
.breadcrumb .breadcrumb-link:hover {
  color: #FF6A13;
}

.breadcrumb-sep {
  color: #9AA8B5;
  margin: 0 2px;
}

.breadcrumb-current {
  color: #5A6B7C;
}

/* 主内容 */
.site-main {
  flex: 1 0 auto;
}

.site-main.inner-main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 24px 24px 60px;
  width: 100%;
}

.home-main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px 60px;
  width: 100%;
}

/* 页面标题区（内页统一） */
.page-header {
  padding: 20px 0 8px;
  border-bottom: 2px solid #1B3A6B;
  margin-bottom: 28px;
}

.page-title {
  font-size: 30px;
  line-height: 1.3;
  color: #1B3A6B;
  margin: 0;
}

/* 页脚 */
.site-footer {
  background-color: #1B3A6B;
  color: rgba(255, 255, 255, 0.85);
  margin-top: auto;
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 48px 24px 28px;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
}

.footer-brand-name {
  font-size: 20px;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 10px;
}

.footer-brand-desc {
  font-size: 14px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.7);
  max-width: 300px;
}

.footer-col-title {
  font-size: 15px;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 14px;
}

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

.footer-link {
  color: rgba(255, 255, 255, 0.75);
  font-size: 14px;
  line-height: 1.6;
  display: inline-block;
  min-height: 28px;
}

.footer-link:hover {
  color: #FF6A13;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  padding: 18px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  max-width: 1200px;
  margin: 0 auto;
}

.copyright {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.6);
}

.back-top {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 16px;
  background-color: rgba(255, 255, 255, 0.12);
  border-radius: 4px;
  color: #FFFFFF;
  font-size: 14px;
  transition: background-color 0.2s ease;
}

.back-top:hover {
  background-color: #FF6A13;
  color: #FFFFFF;
}

/* 通用 section 头部 */
.section-head {
  margin-bottom: 28px;
}

.section-kicker {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  color: #FF6A13;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 6px;
}

.section-head h2,
.section-title {
  font-size: 26px;
  color: #1B3A6B;
  margin-bottom: 8px;
}

.section-desc {
  font-size: 15px;
  color: #5A6B7C;
  max-width: 720px;
}

/* =========================================================
   Components · 首页模块
   ========================================================= */

/* ---- 站台首屏 hero-station ---- */
.hero-station {
  padding: 48px 0 40px;
}

.hero-layout {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 48px;
  align-items: center;
  margin-bottom: 48px;
}

.hero-kicker {
  display: inline-block;
  font-size: 14px;
  font-weight: 700;
  color: #FF6A13;
  background-color: rgba(255, 106, 19, 0.1);
  padding: 4px 12px;
  border-radius: 4px;
  margin-bottom: 16px;
  letter-spacing: 0.04em;
}

.hero-copy h1 {
  font-size: 36px;
  line-height: 1.25;
  color: #1B3A6B;
  margin-bottom: 16px;
}

.hero-lead {
  font-size: 16px;
  line-height: 1.8;
  color: #5A6B7C;
  margin-bottom: 24px;
  max-width: 520px;
}

.hero-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 28px;
  background-color: #FF6A13;
  color: #FFFFFF;
  font-size: 15px;
  font-weight: 700;
  border-radius: 4px;
  transition: background-color 0.2s ease, transform 0.2s ease;
}

.hero-cta:hover {
  background-color: #e05a0a;
  color: #FFFFFF;
  transform: translateY(-1px);
}

.hero-visual {
  position: relative;
}

.hero-figure {
  background-color: #E8EDF2;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 4px 16px rgba(27, 58, 107, 0.1);
}

.hero-figure img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

/* 站台入口三卡 */
.station-entries {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.station-card {
  background-color: #FFFFFF;
  border: 1px solid #DDE3E9;
  border-radius: 8px;
  padding: 24px 22px;
  position: relative;
  transition: box-shadow 0.2s ease, border-color 0.2s ease;
}

.station-card:hover {
  border-color: #2E6FAD;
  box-shadow: 0 4px 14px rgba(46, 111, 173, 0.14);
}

.station-no {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  background-color: #1B3A6B;
  color: #FFFFFF;
  font-size: 14px;
  font-weight: 700;
  border-radius: 4px;
  margin-bottom: 12px;
}

.station-title {
  font-size: 18px;
  margin-bottom: 8px;
}

.station-desc {
  font-size: 14px;
  line-height: 1.65;
  color: #5A6B7C;
  margin-bottom: 14px;
}

.station-link {
  display: inline-flex;
  align-items: center;
  font-size: 14px;
  font-weight: 600;
  min-height: 32px;
}

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

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

/* 首页主配图 */
.content-media-primary {
  margin: 40px 0 8px;
}

.content-media-primary img {
  width: 100%;
  aspect-ratio: 16 / 5;
  object-fit: cover;
  border-radius: 8px;
}

.content-media-primary figcaption {
  font-size: 13px;
  color: #8A98A6;
  padding: 8px 2px 0;
  line-height: 1.5;
}

/* ---- 服务线路 service-lines ---- */
.service-lines {
  padding: 48px 0;
  border-top: 1px solid #DDE3E9;
}

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

.line-card {
  background-color: #FFFFFF;
  border-radius: 8px;
  padding: 24px 20px;
  border-top: 4px solid #2E6FAD;
  box-shadow: 0 2px 8px rgba(27, 58, 107, 0.06);
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}

.line-card:hover {
  box-shadow: 0 6px 18px rgba(27, 58, 107, 0.12);
  transform: translateY(-2px);
}

.line-code {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  color: #FF6A13;
  margin-bottom: 10px;
  letter-spacing: 0.04em;
}

.line-title {
  font-size: 17px;
  margin-bottom: 8px;
}

.line-desc {
  font-size: 14px;
  line-height: 1.65;
  color: #5A6B7C;
  margin-bottom: 14px;
}

.line-link {
  display: inline-flex;
  align-items: center;
  font-size: 14px;
  font-weight: 600;
  min-height: 32px;
}

.line-link::after {
  content: "→";
  margin-left: 6px;
}

/* ---- 本期专题入口 topic-entry ---- */
.topic-entry {
  padding: 48px 0;
  border-top: 1px solid #DDE3E9;
}

.topic-layout {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 48px;
  align-items: start;
}

.topic-summary {
  font-size: 15px;
  line-height: 1.75;
  color: #5A6B7C;
  margin-bottom: 20px;
}

.topic-link {
  display: inline-flex;
  align-items: center;
  font-size: 15px;
  font-weight: 700;
  color: #1B3A6B;
  min-height: 44px;
  padding: 0 20px;
  border: 2px solid #1B3A6B;
  border-radius: 4px;
  transition: background-color 0.2s ease, color 0.2s ease;
}

.topic-link:hover {
  background-color: #1B3A6B;
  color: #FFFFFF;
}

.topic-related {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.related-item {
  background-color: #FFFFFF;
  border-radius: 8px;
  padding: 20px 22px;
  border-left: 3px solid #2E6FAD;
  transition: box-shadow 0.2s ease;
}

.related-item:hover {
  box-shadow: 0 4px 12px rgba(27, 58, 107, 0.1);
}

.related-title {
  font-size: 16px;
  margin-bottom: 6px;
}

.related-desc {
  font-size: 14px;
  line-height: 1.6;
  color: #5A6B7C;
}

/* ---- 反差分析预览 method-preview ---- */
.method-preview {
  padding: 48px 0;
  border-top: 1px solid #DDE3E9;
}

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

.method-node {
  background-color: #FFFFFF;
  border-radius: 8px;
  padding: 24px 22px;
  position: relative;
  border: 1px solid #DDE3E9;
}

.node-no {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  background-color: #2E6FAD;
  color: #FFFFFF;
  font-size: 15px;
  font-weight: 700;
  border-radius: 50%;
  margin-bottom: 12px;
}

.node-title {
  font-size: 17px;
  margin-bottom: 8px;
}

.node-desc {
  font-size: 14px;
  line-height: 1.65;
  color: #5A6B7C;
  margin-bottom: 12px;
}

.node-link {
  font-size: 14px;
  font-weight: 600;
}

/* ---- 流程预览 process-preview ---- */
.process-preview {
  padding: 48px 0;
  border-top: 1px solid #DDE3E9;
}

.process-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-bottom: 32px;
}

.step-item {
  background-color: #FFFFFF;
  border-radius: 8px;
  padding: 22px 20px;
  position: relative;
  border: 1px solid #DDE3E9;
  text-align: center;
}

.step-no {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  background-color: #FF6A13;
  color: #FFFFFF;
  font-size: 14px;
  font-weight: 700;
  border-radius: 4px;
  margin-bottom: 10px;
}

.step-title {
  font-size: 16px;
  margin-bottom: 6px;
}

.step-desc {
  font-size: 13px;
  line-height: 1.6;
  color: #5A6B7C;
}

.process-entry {
  text-align: center;
}

.process-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 28px;
  background-color: #1B3A6B;
  color: #FFFFFF;
  font-size: 15px;
  font-weight: 600;
  border-radius: 4px;
  transition: background-color 0.2s ease;
}

.process-link:hover {
  background-color: #2E6FAD;
  color: #FFFFFF;
}

/* ---- FAQ 预览 faq-teaser ---- */
.faq-teaser {
  padding: 48px 0;
  border-top: 1px solid #DDE3E9;
}

.faq-preview-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-bottom: 28px;
}

.faq-item {
  background-color: #FFFFFF;
  border-radius: 8px;
  border: 1px solid #DDE3E9;
  overflow: hidden;
}

.faq-question {
  padding: 18px 22px;
  font-size: 15px;
  font-weight: 600;
  color: #1B3A6B;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-height: 44px;
  list-style: none;
}

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

.faq-question::after {
  content: "+";
  font-size: 20px;
  color: #FF6A13;
  flex-shrink: 0;
  transition: transform 0.2s ease;
}

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

.faq-answer {
  padding: 0 22px 18px;
  font-size: 14px;
  line-height: 1.7;
  color: #5A6B7C;
}

.faq-all-link {
  display: inline-flex;
  align-items: center;
  font-size: 15px;
  font-weight: 600;
  min-height: 44px;
  padding: 0 20px;
  border: 1px solid #1B3A6B;
  border-radius: 4px;
  color: #1B3A6B;
  transition: background-color 0.2s ease, color 0.2s ease;
}

.faq-all-link:hover {
  background-color: #1B3A6B;
  color: #FFFFFF;
}

/* =========================================================
   Components · 服务专题页 service.html
   ========================================================= */

.page-layout {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px 60px;
  width: 100%;
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 40px;
  align-items: start;
}

.page-layout .site-main.inner-main {
  max-width: none;
  padding: 24px 0 0;
}

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

.page-lead {
  font-size: 16px;
  line-height: 1.8;
  color: #5A6B7C;
  max-width: 720px;
}

/* 服务矩阵 */
.service-matrix {
  margin-bottom: 48px;
}

.service-card-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.service-card {
  background-color: #FFFFFF;
  border-radius: 8px;
  padding: 24px;
  border: 1px solid #DDE3E9;
  transition: box-shadow 0.2s ease;
}

.service-card:hover {
  box-shadow: 0 4px 14px rgba(27, 58, 107, 0.1);
}

.service-card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.service-line {
  font-size: 13px;
  font-weight: 700;
  color: #FF6A13;
  letter-spacing: 0.04em;
}

.service-badge {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  color: #1B3A6B;
  background-color: rgba(46, 111, 173, 0.12);
  padding: 2px 10px;
  border-radius: 3px;
}

.service-card-title {
  font-size: 18px;
  margin-bottom: 8px;
}

.service-card-desc {
  font-size: 14px;
  line-height: 1.65;
  color: #5A6B7C;
  margin-bottom: 14px;
}

.service-meta {
  border-top: 1px solid #E8EDF2;
  padding-top: 12px;
  margin-bottom: 14px;
}

.meta-row {
  display: flex;
  gap: 8px;
  font-size: 13px;
  line-height: 1.6;
  margin-bottom: 4px;
}

.meta-label {
  color: #8A98A6;
  flex-shrink: 0;
  min-width: 58px;
}

.meta-value {
  color: #222E3C;
}

.service-link {
  display: inline-flex;
  align-items: center;
  font-size: 14px;
  font-weight: 600;
  min-height: 32px;
}

.service-link::after {
  content: "→";
  margin-left: 6px;
}

/* 交付物清单 */
.deliverable-wrapper {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 32px;
  align-items: start;
}

.deliverable-figure {
  background-color: #E8EDF2;
  border-radius: 8px;
  overflow: hidden;
}

.deliverable-img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.deliverable-caption {
  font-size: 13px;
  color: #8A98A6;
  padding: 8px 12px;
  line-height: 1.5;
}

.deliverable-list-items {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.deliverable-item {
  display: flex;
  gap: 14px;
  background-color: #FFFFFF;
  border-radius: 8px;
  padding: 16px 18px;
  border: 1px solid #DDE3E9;
  align-items: flex-start;
}

.item-no {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  background-color: #1B3A6B;
  color: #FFFFFF;
  font-size: 13px;
  font-weight: 700;
  border-radius: 4px;
  flex-shrink: 0;
  margin-top: 2px;
}

.item-title {
  font-size: 15px;
  font-weight: 600;
  color: #1B3A6B;
  margin-bottom: 4px;
}

.item-desc {
  font-size: 13px;
  line-height: 1.6;
  color: #5A6B7C;
}

/* 侧栏 */
.service-toc {
  position: sticky;
  top: 84px;
}

.toc-card {
  background-color: #FFFFFF;
  border-radius: 8px;
  padding: 20px;
  border: 1px solid #DDE3E9;
  margin-bottom: 16px;
}

.toc-title {
  font-size: 15px;
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 2px solid #E8EDF2;
}

.toc-list li {
  margin-bottom: 6px;
}

.toc-link {
  display: block;
  padding: 6px 0;
  font-size: 14px;
  color: #5A6B7C;
  min-height: 32px;
  transition: color 0.2s ease, padding-left 0.2s ease;
}

.toc-link:hover {
  color: #FF6A13;
  padding-left: 6px;
}

/* =========================================================
   Components · 反差分析页 method.html
   ========================================================= */

.method-head {
  margin-bottom: 40px;
}

.method-head-inner {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 40px;
  align-items: center;
}

.method-station-code {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  color: #FF6A13;
  background-color: rgba(255, 106, 19, 0.1);
  padding: 4px 12px;
  border-radius: 4px;
  margin-bottom: 14px;
  letter-spacing: 0.06em;
}

.method-lead {
  font-size: 16px;
  line-height: 1.8;
  color: #5A6B7C;
}

.method-head-figure {
  background-color: #E8EDF2;
  border-radius: 8px;
  overflow: hidden;
}

.method-figure img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

/* 维度卡片 */
.dimension-grid,
.report-steps,
.scenario-list,
.method-related {
  margin-bottom: 48px;
  padding-top: 8px;
}

.section-code {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  color: #FF6A13;
  letter-spacing: 0.06em;
  margin-bottom: 6px;
}

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

.dimension-card {
  background-color: #FFFFFF;
  border-radius: 8px;
  padding: 24px 22px;
  border-top: 4px solid #2E6FAD;
  box-shadow: 0 2px 8px rgba(27, 58, 107, 0.06);
}

.dimension-num {
  font-size: 13px;
  font-weight: 700;
  color: #FF6A13;
  margin-bottom: 8px;
}

.dimension-card h3 {
  font-size: 18px;
  margin-bottom: 10px;
}

.dimension-desc {
  font-size: 14px;
  line-height: 1.7;
  color: #5A6B7C;
  margin-bottom: 12px;
}

.dimension-example {
  font-size: 13px;
  line-height: 1.6;
  color: #8A98A6;
  background-color: #F4F6F8;
  border-radius: 4px;
  padding: 10px 12px;
}

/* 报告步骤 */
.report-step-list {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
}

.report-step {
  background-color: #FFFFFF;
  border-radius: 8px;
  padding: 20px 16px;
  border: 1px solid #DDE3E9;
  position: relative;
}

.step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  background-color: #1B3A6B;
  color: #FFFFFF;
  font-size: 13px;
  font-weight: 700;
  border-radius: 50%;
  margin-bottom: 10px;
}

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

.report-step .step-desc {
  font-size: 13px;
  line-height: 1.6;
}

/* 场景列表 */
.scenario-items {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.scenario-item {
  background-color: #FFFFFF;
  border-radius: 8px;
  padding: 24px 22px;
  border-left: 3px solid #FF6A13;
}

.scenario-num {
  font-size: 13px;
  font-weight: 700;
  color: #FF6A13;
  margin-bottom: 8px;
}

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

.scenario-desc {
  font-size: 14px;
  line-height: 1.7;
  color: #5A6B7C;
}

/* 相关链接 */
.related-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.related-link {
  display: flex;
  flex-direction: column;
  gap: 2px;
  background-color: #FFFFFF;
  border-radius: 8px;
  padding: 14px 18px;
  border: 1px solid #DDE3E9;
  min-width: 200px;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.related-link:hover {
  border-color: #2E6FAD;
  box-shadow: 0 4px 12px rgba(27, 58, 107, 0.1);
}

.related-link-title {
  font-size: 15px;
  font-weight: 600;
  color: #1B3A6B;
}

.related-link-desc {
  font-size: 13px;
  color: #8A98A6;
}

/* =========================================================
   Components · 专题页 topic.html
   ========================================================= */

.topic-head {
  margin-bottom: 40px;
}

.topic-head-inner {
  background-color: #FFFFFF;
  border-radius: 8px;
  padding: 32px;
  border: 1px solid #DDE3E9;
  position: relative;
  overflow: hidden;
}

.topic-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
}

.topic-no {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background-color: #1B3A6B;
  color: #FFFFFF;
  font-size: 13px;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 4px;
}

.topic-tag {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  color: #FF6A13;
  background-color: rgba(255, 106, 19, 0.1);
  padding: 4px 12px;
  border-radius: 4px;
}

.topic-summary {
  font-size: 16px;
  line-height: 1.8;
  color: #222E3C;
  margin-bottom: 12px;
  max-width: 720px;
}

.topic-reader {
  font-size: 14px;
  color: #5A6B7C;
  margin-bottom: 20px;
}

.topic-figure {
  background-color: #E8EDF2;
  border-radius: 8px;
  overflow: hidden;
  margin-top: 16px;
}

.topic-hero-img {
  width: 100%;
  aspect-ratio: 16 / 6;
  object-fit: cover;
}

.topic-figure figcaption {
  font-size: 13px;
  color: #8A98A6;
  padding: 8px 12px;
}

/* 关联内容 */
.topic-related {
  margin-bottom: 48px;
}

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

.related-card {
  background-color: #FFFFFF;
  border-radius: 8px;
  padding: 24px 22px;
  border: 1px solid #DDE3E9;
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}

.related-card:hover {
  box-shadow: 0 4px 14px rgba(27, 58, 107, 0.1);
  transform: translateY(-2px);
}

.card-label {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  color: #2E6FAD;
  background-color: rgba(46, 111, 173, 0.1);
  padding: 2px 10px;
  border-radius: 3px;
  margin-bottom: 10px;
}

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

.related-card p {
  font-size: 14px;
  line-height: 1.65;
  color: #5A6B7C;
  margin-bottom: 12px;
}

.card-link {
  font-size: 14px;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  min-height: 32px;
}

.card-link::after {
  content: "→";
  margin-left: 6px;
}

/* 相关推荐 */
.topic-recommend {
  margin-bottom: 48px;
}

.recommend-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.recommend-item {
  display: flex;
  gap: 16px;
  background-color: #FFFFFF;
  border-radius: 8px;
  padding: 24px;
  border: 1px solid #DDE3E9;
  align-items: flex-start;
}

.recommend-no {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  background-color: #FF6A13;
  color: #FFFFFF;
  font-size: 14px;
  font-weight: 700;
  border-radius: 4px;
  flex-shrink: 0;
  margin-top: 2px;
}

.recommend-body h3 {
  font-size: 16px;
  margin-bottom: 6px;
}

.recommend-body p {
  font-size: 14px;
  line-height: 1.65;
  color: #5A6B7C;
  margin-bottom: 10px;
}

.recommend-link {
  font-size: 14px;
  font-weight: 600;
}

/* 延伸阅读 */
.extended-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.extended-card {
  display: flex;
  flex-direction: column;
  gap: 6px;
  background-color: #FFFFFF;
  border-radius: 8px;
  padding: 20px 18px;
  border: 1px solid #DDE3E9;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.extended-card:hover {
  border-color: #2E6FAD;
  box-shadow: 0 4px 12px rgba(27, 58, 107, 0.1);
}

.extended-name {
  font-size: 15px;
  font-weight: 600;
  color: #1B3A6B;
}

.extended-desc {
  font-size: 13px;
  line-height: 1.6;
  color: #8A98A6;
}

/* =========================================================
   Components · 流程页 process.html
   ========================================================= */

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

.process-lead {
  font-size: 16px;
  line-height: 1.8;
  color: #5A6B7C;
  max-width: 720px;
}

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

.process-overview h2 {
  font-size: 24px;
  margin-bottom: 24px;
}

.steps-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-bottom: 28px;
}

.steps-row .step-item {
  text-align: left;
  border-top: 4px solid #2E6FAD;
}

.step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  background-color: #1B3A6B;
  color: #FFFFFF;
  font-size: 14px;
  font-weight: 700;
  border-radius: 4px;
  margin-bottom: 10px;
}

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

.steps-row .step-item p {
  font-size: 13px;
  line-height: 1.6;
  color: #5A6B7C;
}

.process-overview-img {
  width: 100%;
  aspect-ratio: 16 / 5;
  object-fit: cover;
  border-radius: 8px;
}

/* 步骤详情 */
.process-detail {
  margin-bottom: 48px;
}

.process-detail h2 {
  font-size: 24px;
  margin-bottom: 24px;
}

.detail-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.detail-card {
  background-color: #FFFFFF;
  border-radius: 8px;
  padding: 24px;
  border: 1px solid #DDE3E9;
  position: relative;
}

.detail-index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  background-color: #FF6A13;
  color: #FFFFFF;
  font-size: 14px;
  font-weight: 700;
  border-radius: 4px;
  margin-bottom: 12px;
}

.detail-card h3 {
  font-size: 17px;
  margin-bottom: 10px;
}

.detail-card p {
  font-size: 14px;
  line-height: 1.7;
  color: #5A6B7C;
  margin-bottom: 6px;
}

.detail-card p strong {
  color: #1B3A6B;
  font-weight: 600;
}

/* 合作方式 */
.cooperation-way {
  margin-bottom: 48px;
}

.cooperation-way h2 {
  font-size: 24px;
  margin-bottom: 24px;
}

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

.coop-item {
  background-color: #FFFFFF;
  border-radius: 8px;
  padding: 24px 22px;
  border: 1px solid #DDE3E9;
  text-align: center;
}

.coop-tag {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  color: #FFFFFF;
  background-color: #1B3A6B;
  padding: 4px 14px;
  border-radius: 4px;
  margin-bottom: 12px;
}

.coop-item p {
  font-size: 14px;
  line-height: 1.7;
  color: #5A6B7C;
  margin-bottom: 14px;
}

.coop-item a {
  display: inline-flex;
  align-items: center;
  font-size: 14px;
  font-weight: 600;
  min-height: 32px;
}

.coop-item a::after {
  content: "→";
  margin-left: 6px;
}

.coop-img {
  width: 100%;
  aspect-ratio: 16 / 4;
  object-fit: cover;
  border-radius: 8px;
}

/* 相关链接条 */
.related-links {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  background-color: #FFFFFF;
  border-radius: 8px;
  padding: 16px 20px;
  border: 1px solid #DDE3E9;
}

.related-links-label {
  font-size: 14px;
  font-weight: 600;
  color: #1B3A6B;
  margin-right: 8px;
}

.related-links-item {
  font-size: 14px;
  color: #5A6B7C;
  padding: 6px 12px;
  border-radius: 4px;
  background-color: #F4F6F8;
  min-height: 32px;
  display: inline-flex;
  align-items: center;
  transition: background-color 0.2s ease, color 0.2s ease;
}

.related-links-item:hover {
  background-color: #1B3A6B;
  color: #FFFFFF;
}

/* =========================================================
   Components · FAQ 页 faq.html
   ========================================================= */

.faq-head {
  margin-bottom: 36px;
}

.faq-head-desc {
  font-size: 16px;
  line-height: 1.8;
  color: #5A6B7C;
  max-width: 720px;
  margin-bottom: 24px;
}

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

.content-media-inline img {
  width: 100%;
  aspect-ratio: 16 / 5;
  object-fit: cover;
  border-radius: 8px;
}

.content-media-inline figcaption {
  font-size: 13px;
  color: #8A98A6;
  padding: 8px 2px 0;
}

/* FAQ 分组 */
.faq-group {
  margin-bottom: 44px;
}

.faq-group-head {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 18px;
  padding-bottom: 10px;
  border-bottom: 2px solid #1B3A6B;
}

.faq-group-no {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  background-color: #1B3A6B;
  color: #FFFFFF;
  font-size: 14px;
  font-weight: 700;
  border-radius: 4px;
  flex-shrink: 0;
}

.faq-group-head h2 {
  font-size: 22px;
  margin: 0;
}

.faq-group-head p {
  font-size: 14px;
  color: #8A98A6;
  margin-left: auto;
}

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

.faq-list .faq-item {
  background-color: #FFFFFF;
  border-radius: 8px;
  border: 1px solid #DDE3E9;
  overflow: hidden;
}

.faq-list .faq-question {
  padding: 18px 22px;
  font-size: 15px;
  font-weight: 600;
  color: #1B3A6B;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-height: 44px;
  list-style: none;
}

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

.faq-list .faq-question::after {
  content: "+";
  font-size: 20px;
  color: #FF6A13;
  flex-shrink: 0;
  transition: transform 0.2s ease;
}

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

.faq-list .faq-answer {
  padding: 0 22px 18px;
  font-size: 14px;
  line-height: 1.7;
  color: #5A6B7C;
}

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

.faq-list .faq-answer a {
  font-weight: 600;
}

/* 相关卡片 */
.faq-related {
  margin-top: 16px;
}

.faq-related-inner {
  background-color: #FFFFFF;
  border-radius: 8px;
  padding: 28px;
  border: 1px solid #DDE3E9;
}

.faq-related-inner h2 {
  font-size: 20px;
  margin-bottom: 20px;
}

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

.related-card {
  display: flex;
  flex-direction: column;
  gap: 6px;
  background-color: #F4F6F8;
  border-radius: 8px;
  padding: 18px 16px;
  transition: background-color 0.2s ease, transform 0.2s ease;
}

.related-card:hover {
  background-color: #E8EDF2;
  transform: translateY(-2px);
}

.related-card-no {
  font-size: 12px;
  font-weight: 700;
  color: #FF6A13;
}

.related-card-title {
  font-size: 15px;
  font-weight: 600;
  color: #1B3A6B;
}

.related-card-desc {
  font-size: 13px;
  line-height: 1.5;
  color: #5A6B7C;
}

/* =========================================================
   Components · 关于页 about.html
   ========================================================= */

.about-head {
  margin-bottom: 40px;
}

.about-head-inner {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 40px;
  align-items: center;
}

.about-lead {
  font-size: 16px;
  line-height: 1.8;
  color: #5A6B7C;
}

.about-head-figure {
  background-color: #E8EDF2;
  border-radius: 8px;
  overflow: hidden;
}

.about-head-figure img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

/* 机构定位 */
.about-position,
.about-object,
.about-principles {
  margin-bottom: 48px;
}

.about-section-inner {
  max-width: 100%;
}

.about-section-head {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 20px;
}

.section-no {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  background-color: #1B3A6B;
  color: #FFFFFF;
  font-size: 14px;
  font-weight: 700;
  border-radius: 4px;
  flex-shrink: 0;
}

.about-section-head h2 {
  font-size: 22px;
  margin: 0;
}

.about-position-body p {
  font-size: 15px;
  line-height: 1.8;
  color: #5A6B7C;
  margin-bottom: 16px;
  max-width: 760px;
}

.about-image-block {
  margin-top: 20px;
}

.about-figure {
  background-color: #E8EDF2;
  border-radius: 8px;
  overflow: hidden;
}

.about-figure img {
  width: 100%;
  aspect-ratio: 16 / 5;
  object-fit: cover;
}

/* 服务对象 */
.object-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.object-card {
  background-color: #FFFFFF;
  border-radius: 8px;
  padding: 24px 22px;
  border-top: 4px solid #2E6FAD;
  box-shadow: 0 2px 8px rgba(27, 58, 107, 0.06);
}

.object-code {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  color: #FF6A13;
  margin-bottom: 8px;
}

.object-card h3 {
  font-size: 17px;
  margin-bottom: 8px;
}

.object-card p {
  font-size: 14px;
  line-height: 1.7;
  color: #5A6B7C;
}

/* 内容原则 */
.principles-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-bottom: 24px;
}

.principle-item {
  display: flex;
  gap: 14px;
  background-color: #FFFFFF;
  border-radius: 8px;
  padding: 20px;
  border: 1px solid #DDE3E9;
  align-items: flex-start;
}

.principle-index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  background-color: #1B3A6B;
  color: #FFFFFF;
  font-size: 13px;
  font-weight: 700;
  border-radius: 4px;
  flex-shrink: 0;
  margin-top: 2px;
}

.principle-item h3 {
  font-size: 15px;
  margin-bottom: 4px;
}

.principle-item p {
  font-size: 14px;
  line-height: 1.6;
  color: #5A6B7C;
}

.principles-note {
  background-color: #FFFFFF;
  border-radius: 8px;
  padding: 18px 20px;
  border: 1px solid #DDE3E9;
  font-size: 14px;
  line-height: 1.7;
  color: #5A6B7C;
}

.principles-note a {
  font-weight: 600;
  margin-right: 12px;
  display: inline-block;
}

/* =========================================================
   Components · 404 页
   ========================================================= */

.error-main {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 60vh;
  padding: 60px 24px;
}

.error-panel {
  text-align: center;
  max-width: 480px;
  background-color: #FFFFFF;
  border-radius: 8px;
  padding: 48px 40px;
  border: 1px solid #DDE3E9;
  box-shadow: 0 4px 16px rgba(27, 58, 107, 0.08);
}

.error-code {
  font-size: 64px;
  font-weight: 700;
  color: #1B3A6B;
  line-height: 1;
  margin-bottom: 16px;
}

.error-title {
  font-size: 22px;
  margin-bottom: 12px;
}

.error-desc {
  font-size: 15px;
  line-height: 1.7;
  color: #5A6B7C;
  margin-bottom: 24px;
}

.error-back {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 28px;
  background-color: #1B3A6B;
  color: #FFFFFF;
  font-size: 15px;
  font-weight: 600;
  border-radius: 4px;
  transition: background-color 0.2s ease;
}

.error-back:hover {
  background-color: #FF6A13;
  color: #FFFFFF;
}

/* =========================================================
   Responsive · 响应式规则
   ========================================================= */

/* 平板 1024px */
@media (max-width: 1024px) {
  .header-inner {
    padding: 0 20px;
  }

  .nav-link {
    padding: 10px 10px;
    font-size: 14px;
  }

  .footer-inner {
    grid-template-columns: 1.5fr 1fr 1fr;
    gap: 32px;
  }

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

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

  .report-step-list {
    grid-template-columns: repeat(3, 1fr);
    gap: 14px;
  }

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

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

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

  .page-layout {
    grid-template-columns: 1fr 260px;
    gap: 28px;
  }
}

/* 手机 768px */
@media (max-width: 768px) {
  .site-body {
    padding-top: 0;
  }

  .header-inner {
    min-height: 56px;
    padding: 0 16px;
    gap: 12px;
  }

  .brand-slogan {
    display: none;
  }

  .brand-link {
    font-size: 16px;
  }

  .brand-mark {
    width: 30px;
    height: 30px;
    font-size: 14px;
  }

  /* 移动导航 */
  .nav-toggle {
    display: flex;
    margin-left: auto;
  }

  .main-nav {
    position: static;
  }

  .nav-list {
    display: none;
    position: absolute;
    top: 56px;
    left: 0;
    right: 0;
    background-color: #1B3A6B;
    flex-direction: column;
    align-items: stretch;
    padding: 8px 16px 16px;
    gap: 2px;
    box-shadow: 0 6px 16px rgba(27, 58, 107, 0.3);
    z-index: 99;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
  }

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

  .nav-item {
    width: 100%;
  }

  .nav-link {
    padding: 12px 16px;
    font-size: 15px;
    border-radius: 4px;
    min-height: 44px;
    display: flex;
    align-items: center;
  }

  .nav-link.is-current {
    background-color: rgba(255, 255, 255, 0.18);
  }

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

  /* 面包屑 */
  .breadcrumb {
    padding: 12px 16px 0;
  }

  /* 主内容 */
  .home-main {
    padding: 0 16px 48px;
  }

  .site-main.inner-main {
    padding: 16px 16px 48px;
  }

  .page-layout {
    padding: 0 16px 48px;
    grid-template-columns: 1fr;
    gap: 0;
  }

  .page-layout .site-main.inner-main {
    padding: 16px 0 0;
  }

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

  .page-header {
    padding: 16px 0 8px;
    margin-bottom: 20px;
  }

  /* 首页 hero */
  .hero-station {
    padding: 32px 0 28px;
  }

  .hero-layout {
    grid-template-columns: 1fr;
    gap: 24px;
    margin-bottom: 32px;
  }

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

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

  .hero-figure img {
    aspect-ratio: 16 / 10;
  }

  .station-entries {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .content-media-primary img {
    aspect-ratio: 16 / 9;
  }

  /* 服务线路 */
  .service-lines {
    padding: 36px 0;
  }

  .service-line-grid {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  /* 专题入口 */
  .topic-entry {
    padding: 36px 0;
  }

  .topic-layout {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  /* 方法预览 */
  .method-preview {
    padding: 36px 0;
  }

  .method-node-list {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  /* 流程预览 */
  .process-preview {
    padding: 36px 0;
  }

  .process-steps {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  /* FAQ 预览 */
  .faq-teaser {
    padding: 36px 0;
  }

  .section-head h2,
  .section-title {
    font-size: 22px;
  }

  /* 页脚 */
  .footer-inner {
    grid-template-columns: 1fr;
    gap: 24px;
    padding: 36px 16px 24px;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 12px;
    text-align: center;
    padding: 16px;
  }

  /* 服务页 */
  .service-card-list {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .deliverable-wrapper {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .deliverable-img {
    aspect-ratio: 16 / 9;
  }

  .service-toc {
    position: static;
    margin-top: 32px;
  }

  .toc-card {
    margin-bottom: 12px;
  }

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

  .toc-item {
    margin-bottom: 0;
  }

  .toc-link {
    padding: 6px 12px;
    background-color: #F4F6F8;
    border-radius: 4px;
    font-size: 13px;
  }

  /* 方法页 */
  .method-head-inner {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .method-figure img {
    aspect-ratio: 16 / 9;
  }

  .dimension-cards {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .report-step-list {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .scenario-items {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .related-links {
    flex-direction: column;
    align-items: stretch;
  }

  .related-link {
    min-width: 0;
  }

  /* 专题页 */
  .topic-head-inner {
    padding: 24px 20px;
  }

  .topic-hero-img {
    aspect-ratio: 16 / 9;
  }

  .related-grid {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .recommend-list {
    grid-template-columns: 1fr;
    gap: 14px;
  }

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

  /* 流程页 */
  .steps-row {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .process-overview-img {
    aspect-ratio: 16 / 8;
  }

  .detail-grid {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .coop-list {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .coop-img {
    aspect-ratio: 16 / 7;
  }

  /* FAQ 页 */
  .faq-group-head {
    flex-wrap: wrap;
    gap: 10px;
  }

  .faq-group-head p {
    margin-left: 0;
    width: 100%;
  }

  .content-media-inline img {
    aspect-ratio: 16 / 9;
  }

  .related-card-list {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  /* 关于页 */
  .about-head-inner {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .about-head-figure img {
    aspect-ratio: 16 / 9;
  }

  .object-list {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .principles-list {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .about-figure img {
    aspect-ratio: 16 / 7;
  }

  /* 404 */
  .error-panel {
    padding: 32px 24px;
  }

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

/* 窄屏 390px 及以下 */
@media (max-width: 390px) {
  .header-inner {
    padding: 0 12px;
  }

  .home-main {
    padding: 0 12px 40px;
  }

  .site-main.inner-main {
    padding: 12px 12px 40px;
  }

  .page-layout {
    padding: 0 12px 40px;
  }

  .breadcrumb {
    padding: 10px 12px 0;
  }

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

  .hero-cta {
    width: 100%;
  }

  .station-card {
    padding: 20px 16px;
  }

  .line-card {
    padding: 20px 16px;
  }

  .method-node {
    padding: 20px 16px;
  }

  .step-item {
    padding: 18px 14px;
  }

  .faq-question {
    padding: 14px 16px;
    font-size: 14px;
  }

  .faq-answer {
    padding: 0 16px 14px;
  }

  .section-head h2,
  .section-title {
    font-size: 20px;
  }

  .page-title {
    font-size: 22px;
  }

  .service-card {
    padding: 20px 16px;
  }

  .deliverable-item {
    padding: 14px 14px;
  }

  .detail-card {
    padding: 20px 16px;
  }

  .coop-item {
    padding: 20px 16px;
  }

  .topic-head-inner {
    padding: 20px 16px;
  }

  .related-item {
    padding: 16px 16px;
  }

  .recommend-item {
    padding: 20px 16px;
    flex-direction: column;
  }

  .dimension-card {
    padding: 20px 16px;
  }

  .scenario-item {
    padding: 20px 16px;
  }

  .object-card {
    padding: 20px 16px;
  }

  .principle-item {
    padding: 16px 14px;
  }

  .related-card {
    padding: 14px 12px;
  }

  .extended-card {
    padding: 16px 14px;
  }

  .error-panel {
    padding: 28px 20px;
  }
}