:root {
  --bg-page: #f5f6f7;
  --bg-card: #ffffff;
  --bg-subtle: #eceef0;
  --text-main: #23262b;
  --text-sub: #5b626d;
  --line: #dfe2e7;
  --accent: #2f6f6b;
  --accent-soft: #e6f0ee;
  --accent-strong: #245a57;
  --warn: #b4552f;
  --radius: 8px;
  --radius-sm: 6px;
  --shadow-card: 0 1px 2px rgba(35, 38, 43, 0.05), 0 6px 18px rgba(35, 38, 43, 0.04);
  --container: 1120px;
  --reading: 720px;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}

/* ============================================================
   base
   ============================================================ */

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body.site-body {
  margin: 0;
  background-color: var(--bg-page);
  color: var(--text-main);
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.75;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
}

h1,
h2,
h3,
h4 {
  margin: 0;
  font-weight: 600;
  line-height: 1.4;
  color: var(--text-main);
}

p {
  margin: 0;
}

ul,
ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

dl,
dd,
dt {
  margin: 0;
}

a {
  color: var(--accent);
  text-decoration: none;
}

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

a:focus-visible,
button:focus-visible,
summary:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 3px;
}

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

figure {
  margin: 0;
}

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

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

/* ============================================================
   layout — 容器与主骨架
   ============================================================ */

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

.site-main {
  display: block;
}

.inner-main {
  padding-bottom: 8px;
}

/* ============================================================
   components — 顶部信息条
   ============================================================ */

.top-bar {
  background-color: var(--accent-soft);
  border-bottom: 1px solid var(--line);
}

.top-bar-text {
  max-width: var(--container);
  margin: 0 auto;
  padding: 9px 24px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--accent-strong);
}

/* ============================================================
   components — 页头与导航
   ============================================================ */

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background-color: var(--bg-card);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
  min-height: 64px;
}

.brand {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  font-size: 19px;
  font-weight: 600;
  color: var(--text-main);
  flex: 0 0 auto;
}

.brand::before {
  content: "";
  width: 10px;
  height: 10px;
  margin-right: 9px;
  border-radius: 3px;
  background-color: var(--accent);
  flex: 0 0 auto;
}

.brand:hover {
  color: var(--accent-strong);
}

.site-nav {
  display: block;
}

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

.nav-list li {
  display: block;
}

.nav-list a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 13px;
  font-size: 15px;
  color: var(--text-sub);
  border-radius: var(--radius-sm);
}

.nav-list a:hover {
  color: var(--text-main);
  background-color: var(--bg-subtle);
}

.nav-list a.is-current {
  color: var(--accent-strong);
  background-color: var(--accent-soft);
  font-weight: 600;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 0 10px;
  background-color: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  cursor: pointer;
}

.nav-toggle-bar {
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--text-main);
  border-radius: 2px;
}

/* ============================================================
   components — 按钮
   ============================================================ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 22px;
  font-size: 15px;
  font-weight: 600;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  text-align: center;
}

.btn-primary {
  background-color: var(--accent);
  color: #ffffff;
}

.btn-primary:hover {
  background-color: var(--accent-strong);
  color: #ffffff;
}

.btn-secondary {
  background-color: var(--bg-card);
  color: var(--accent-strong);
  border-color: var(--accent);
}

.btn-secondary:hover {
  background-color: var(--accent-soft);
  color: var(--accent-strong);
}

.btn-plain {
  background-color: transparent;
  color: var(--text-sub);
  border-color: var(--line);
}

.btn-plain:hover {
  color: var(--text-main);
  border-color: var(--text-sub);
}

/* ============================================================
   components — 通用标题与说明
   ============================================================ */

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

.section-desc {
  margin-top: 10px;
  max-width: var(--reading);
  color: var(--text-sub);
  font-size: 15px;
}

.section-lead {
  margin-top: 10px;
  max-width: var(--reading);
  color: var(--text-sub);
  font-size: 15px;
}

.section-more {
  margin-top: 20px;
  font-size: 15px;
}

.section-more a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  font-weight: 600;
}

.section-more a::after {
  content: "→";
  margin-left: 6px;
  font-size: 14px;
}

/* ============================================================
   pages — 首页
   ============================================================ */

.home-main {
  display: block;
}

/* 首屏 */
.hero-section {
  padding: 44px 0 8px;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 40px;
  align-items: start;
}

.hero-content {
  min-width: 0;
  padding-top: 6px;
}

.hero-title {
  font-size: 30px;
  line-height: 1.35;
}

.hero-desc {
  margin-top: 16px;
  max-width: 520px;
  color: var(--text-sub);
  font-size: 15px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.hero-media {
  min-width: 0;
}

.hero-media img {
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background-color: var(--bg-subtle);
}

.content-media {
  margin-top: 36px;
}

.content-media img {
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 7;
  object-fit: cover;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background-color: var(--bg-subtle);
}

.content-media figcaption {
  margin-top: 10px;
  font-size: 13px;
  color: var(--text-sub);
}

/* 适用对象说明条 */
.audience-bar {
  padding: 22px 0;
}

.audience-text {
  padding: 16px 20px;
  background-color: var(--accent-soft);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius-sm);
  font-size: 15px;
  color: var(--accent-strong);
}

/* 服务方向总览 */
.service-overview {
  padding: 36px 0;
}

.service-table-wrap {
  margin-top: 24px;
  overflow-x: auto;
  background-color: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
}

.service-table {
  min-width: 720px;
  font-size: 14px;
}

.service-table th,
.service-table td {
  padding: 14px 18px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--line);
}

.service-table thead th {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-sub);
  background-color: var(--bg-subtle);
  white-space: nowrap;
}

.service-table tbody tr:last-child td {
  border-bottom: 0;
}

.service-table tbody th {
  font-weight: 600;
  color: var(--text-main);
  white-space: nowrap;
}

.service-table tbody td {
  color: var(--text-sub);
}

.service-table tbody tr:hover td,
.service-table tbody tr:hover th {
  background-color: #fafbfb;
}

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

.flow-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
  margin-top: 24px;
}

.flow-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-width: 0;
  padding: 20px 18px;
  background-color: var(--bg-card);
  border: 1px solid var(--line);
  border-top: 3px solid var(--accent);
  border-radius: var(--radius);
  transition: box-shadow 0.18s ease, transform 0.18s ease;
}

.flow-card:hover {
  box-shadow: var(--shadow-card);
  transform: translateY(-2px);
}

.flow-card-title {
  font-size: 17px;
}

.flow-card-action {
  font-size: 14px;
  color: var(--text-sub);
}

.flow-card-output {
  margin-top: auto;
  padding-top: 10px;
  border-top: 1px dashed var(--line);
  font-size: 14px;
  color: var(--accent-strong);
}

/* 常见问题摘要 */
.faq-summary {
  padding: 36px 0;
}

.faq-groups {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 24px;
  margin-top: 24px;
}

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

.faq-group-title {
  font-size: 17px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--accent-soft);
}

.faq-item {
  border-bottom: 1px solid var(--line);
}

.faq-item summary {
  position: relative;
  padding: 14px 34px 14px 0;
  cursor: pointer;
  font-size: 15px;
  font-weight: 600;
  color: var(--text-main);
  list-style: none;
  min-height: 44px;
}

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

.faq-item summary::after {
  content: "+";
  position: absolute;
  right: 6px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 18px;
  font-weight: 400;
  color: var(--accent);
  line-height: 1;
}

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

.faq-item summary:hover {
  color: var(--accent-strong);
}

.faq-item > p {
  padding: 0 34px 16px 0;
  font-size: 14px;
  color: var(--text-sub);
}

/* 站内栏目索引 */
.site-index {
  padding: 36px 0 48px;
}

.index-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
  margin-top: 24px;
}

.index-card {
  display: block;
  min-width: 0;
  padding: 20px 18px;
  background-color: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--text-main);
  transition: border-color 0.18s ease, box-shadow 0.18s ease;
}

.index-card:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow-card);
  color: var(--text-main);
}

.index-card-title {
  font-size: 17px;
  color: var(--accent-strong);
}

.index-card-desc {
  margin-top: 8px;
  font-size: 14px;
  color: var(--text-sub);
}

/* ============================================================
   components — 面包屑与内页标题区
   ============================================================ */

.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
  max-width: var(--container);
  margin: 0 auto;
  padding: 20px 24px 0;
  font-size: 13px;
  color: var(--text-sub);
}

.breadcrumb a {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  color: var(--text-sub);
}

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

.breadcrumb-sep {
  color: #a7adb6;
}

.breadcrumb-current {
  color: var(--text-main);
  font-weight: 600;
}

.page-header {
  max-width: var(--container);
  margin: 0 auto;
  padding: 14px 24px 0;
}

.page-title {
  font-size: 30px;
  line-height: 1.35;
}

.page-description {
  margin-top: 14px;
  max-width: var(--reading);
  color: var(--text-sub);
  font-size: 15px;
}

.inner-main .container {
  padding-top: 30px;
  padding-bottom: 40px;
}

/* ============================================================
   pages — 服务方向
   ============================================================ */

.service-directions {
  display: block;
}

.direction-item {
  display: grid;
  grid-template-columns: minmax(0, 1.7fr) minmax(260px, 1fr);
  gap: 28px;
  margin-top: 28px;
  padding: 24px;
  background-color: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
}

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

.direction-index {
  display: inline-block;
  padding: 2px 10px;
  margin-bottom: 10px;
  font-size: 13px;
  font-weight: 600;
  color: var(--accent-strong);
  background-color: var(--accent-soft);
  border-radius: 999px;
}

.direction-name {
  font-size: 17px;
}

.direction-media {
  margin-top: 16px;
}

.direction-media img {
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line);
  background-color: var(--bg-subtle);
}

.direction-main > p:not(.direction-index) {
  margin-top: 14px;
  font-size: 15px;
  color: var(--text-sub);
}

.direction-side {
  min-width: 0;
  padding: 18px;
  background-color: #fafbfb;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  align-self: start;
}

.direction-side-title {
  font-size: 14px;
  color: var(--accent-strong);
  padding-bottom: 8px;
  border-bottom: 1px solid var(--line);
}

.direction-side-title + .direction-list {
  margin-top: 10px;
}

.direction-list + .direction-side-title {
  margin-top: 18px;
}

.direction-list li {
  position: relative;
  padding-left: 16px;
  margin-top: 8px;
  font-size: 14px;
  color: var(--text-sub);
  line-height: 1.7;
}

.direction-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background-color: var(--accent);
}

.scope-limits {
  margin-top: 40px;
}

.limits-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-top: 22px;
}

.limits-item {
  min-width: 0;
  padding: 18px;
  background-color: var(--bg-card);
  border: 1px solid var(--line);
  border-left: 3px solid var(--warn);
  border-radius: var(--radius-sm);
}

.limits-name {
  font-size: 15px;
}

.limits-item p {
  margin-top: 8px;
  font-size: 14px;
  color: var(--text-sub);
}

.prep-hint {
  margin-top: 40px;
  padding: 22px 24px;
  background-color: var(--accent-soft);
  border-radius: var(--radius);
}

.prep-hint .section-title {
  font-size: 17px;
  color: var(--accent-strong);
}

.prep-hint p {
  margin-top: 10px;
  max-width: var(--reading);
  font-size: 14px;
  color: var(--accent-strong);
}

.related-links {
  margin-top: 40px;
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 22px;
}

.related-card {
  display: block;
  min-width: 0;
  padding: 20px 18px;
  background-color: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--text-main);
  transition: border-color 0.18s ease, box-shadow 0.18s ease;
}

.related-card:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow-card);
  color: var(--text-main);
}

.related-card-title {
  font-size: 17px;
  color: var(--accent-strong);
}

.related-card-desc {
  margin-top: 8px;
  font-size: 14px;
  color: var(--text-sub);
}

/* ============================================================
   pages — 合作流程
   ============================================================ */

.page-media {
  margin-bottom: 34px;
}

.page-media img {
  width: 100%;
  height: auto;
  aspect-ratio: 21 / 8;
  object-fit: cover;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background-color: var(--bg-subtle);
}

.page-media-caption {
  margin-top: 10px;
  font-size: 13px;
  color: var(--text-sub);
}

.flow-stage {
  display: grid;
  grid-template-columns: minmax(0, 1.7fr) minmax(260px, 1fr);
  gap: 28px;
  margin-top: 24px;
  padding: 24px;
  background-color: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
}

.flow-stage-main {
  min-width: 0;
}

.flow-stage-index {
  display: inline-block;
  padding: 2px 10px;
  margin-bottom: 10px;
  font-size: 13px;
  font-weight: 600;
  color: var(--accent-strong);
  background-color: var(--accent-soft);
  border-radius: 999px;
}

.flow-stage-title {
  font-size: 17px;
}

.flow-stage-desc {
  margin-top: 12px;
  font-size: 15px;
  color: var(--text-sub);
}

.flow-stage-detail {
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px dashed var(--line);
}

.flow-stage-detail dt {
  font-size: 13px;
  font-weight: 600;
  color: var(--accent-strong);
}

.flow-stage-detail dd {
  margin-top: 4px;
  font-size: 14px;
  color: var(--text-sub);
}

.flow-stage-detail dd + dt {
  margin-top: 14px;
}

.flow-stage-side {
  min-width: 0;
  padding: 18px;
  background-color: #fafbfb;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  align-self: start;
}

.flow-side-title {
  font-size: 14px;
  color: var(--accent-strong);
  padding-bottom: 8px;
  border-bottom: 1px solid var(--line);
}

.flow-side-list {
  margin-top: 10px;
}

.flow-side-list li {
  position: relative;
  padding-left: 16px;
  margin-top: 8px;
  font-size: 14px;
  color: var(--text-sub);
  line-height: 1.7;
}

.flow-side-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background-color: var(--accent);
}

.acceptance-section {
  margin-top: 40px;
}

.acceptance-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 22px;
}

.acceptance-item {
  min-width: 0;
  padding: 20px 18px;
  background-color: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
}

.acceptance-item-title {
  font-size: 15px;
}

.acceptance-item-desc {
  margin-top: 8px;
  font-size: 14px;
  color: var(--text-sub);
}

.related-section {
  margin-top: 40px;
}

/* ============================================================
   pages — 常见问题
   ============================================================ */

.faq-group + .faq-group {
  margin-top: 44px;
}

.faq-group .section-desc {
  margin-top: 10px;
}

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

.section-media img {
  width: 100%;
  height: auto;
  aspect-ratio: 21 / 8;
  object-fit: cover;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background-color: var(--bg-subtle);
}

.section-media figcaption {
  margin-top: 10px;
  font-size: 13px;
  color: var(--text-sub);
}

.faq-list {
  margin-top: 20px;
  padding: 4px 20px;
  background-color: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
}

.faq-question {
  position: relative;
  padding: 16px 36px 16px 0;
  cursor: pointer;
  font-size: 15px;
  font-weight: 600;
  color: var(--text-main);
  list-style: none;
  min-height: 44px;
}

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

.faq-question::after {
  content: "+";
  position: absolute;
  right: 6px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 18px;
  font-weight: 400;
  color: var(--accent);
  line-height: 1;
}

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

.faq-question:hover {
  color: var(--accent-strong);
}

.faq-answer {
  padding: 0 36px 18px 0;
}

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

.related-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 22px;
}

.related-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 52px;
  padding: 12px 18px;
  background-color: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  color: var(--text-main);
  transition: border-color 0.18s ease, background-color 0.18s ease;
}

.related-item:hover {
  border-color: var(--accent);
  background-color: var(--accent-soft);
  color: var(--text-main);
}

.related-name {
  font-size: 15px;
  font-weight: 600;
  color: var(--accent-strong);
}

.related-desc {
  font-size: 14px;
  color: var(--text-sub);
  text-align: right;
}

/* ============================================================
   pages — 阅读说明
   ============================================================ */

.section + .section {
  margin-top: 44px;
}

.layout-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
  margin-top: 22px;
}

.duty-item {
  display: grid;
  grid-template-columns: minmax(200px, 260px) minmax(0, 1fr);
  gap: 24px;
  padding: 20px 22px;
  background-color: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.duty-head {
  min-width: 0;
}

.duty-name {
  font-size: 17px;
}

.duty-tag {
  margin-top: 6px;
  font-size: 13px;
  color: var(--accent-strong);
}

.duty-body {
  min-width: 0;
}

.duty-desc {
  font-size: 15px;
  color: var(--text-sub);
}

.duty-order {
  margin-top: 10px;
  padding-top: 10px;
  border-top: 1px dashed var(--line);
  font-size: 14px;
  color: var(--text-sub);
}

.media-block {
  margin-top: 44px;
}

.media-block img {
  width: 100%;
  height: auto;
  aspect-ratio: 21 / 8;
  object-fit: cover;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background-color: var(--bg-subtle);
}

.media-caption {
  margin-top: 10px;
  font-size: 13px;
  color: var(--text-sub);
}

.boundary-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-top: 22px;
}

.boundary-col {
  min-width: 0;
  padding: 20px;
  background-color: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.boundary-col-title {
  font-size: 15px;
  color: var(--accent-strong);
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
}

.boundary-list {
  margin-top: 12px;
}

.boundary-list li {
  position: relative;
  padding-left: 16px;
  margin-top: 8px;
  font-size: 14px;
  color: var(--text-sub);
  line-height: 1.7;
}

.boundary-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background-color: var(--accent);
}

.boundary-note {
  margin-top: 16px;
  font-size: 14px;
  color: var(--text-sub);
}

.boundary-note a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  font-weight: 600;
}

.path-list {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
  margin-top: 22px;
}

.path-item {
  min-width: 0;
  padding: 20px 22px;
  background-color: var(--bg-card);
  border: 1px solid var(--line);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius-sm);
}

.path-item-title {
  font-size: 17px;
}

.path-item-desc {
  margin-top: 8px;
  font-size: 15px;
  color: var(--text-sub);
}

.path-item-desc a {
  font-weight: 600;
}

.path-item-order {
  margin-top: 10px;
  font-size: 14px;
  color: var(--accent-strong);
}

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

.error-main {
  padding: 60px 0 72px;
}

.error-inner {
  max-width: 720px;
}

.error-code {
  font-size: 13px;
  font-weight: 600;
  color: var(--warn);
}

.error-title {
  margin-top: 8px;
  font-size: 30px;
  line-height: 1.35;
}

.error-desc {
  margin-top: 14px;
  font-size: 15px;
  color: var(--text-sub);
}

.error-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.error-links {
  margin-top: 44px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
}

.error-links-title {
  font-size: 17px;
}

.error-links-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin-top: 18px;
}

.error-links-list li {
  min-width: 0;
}

.error-links-list a {
  display: flex;
  align-items: center;
  min-height: 48px;
  padding: 10px 16px;
  background-color: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  color: var(--text-main);
  font-size: 15px;
}

.error-links-list a:hover {
  border-color: var(--accent);
  background-color: var(--accent-soft);
  color: var(--accent-strong);
}

/* ============================================================
   components — 页脚
   ============================================================ */

.site-footer {
  margin-top: 40px;
  background-color: var(--accent-soft);
  border-top: 1px solid var(--line);
  color: var(--text-main);
}

.footer-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr) minmax(0, 1.4fr);
  gap: 36px;
  padding-top: 40px;
  padding-bottom: 32px;
}

.footer-brand {
  min-width: 0;
}

.footer-brand-name {
  font-size: 17px;
  font-weight: 600;
  color: var(--accent-strong);
}

.footer-brand-desc {
  margin-top: 10px;
  max-width: 380px;
  font-size: 14px;
  color: var(--text-sub);
}

.footer-nav {
  min-width: 0;
}

.footer-nav-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-main);
}

.footer-nav-list {
  margin-top: 12px;
}

.footer-nav-list li {
  display: block;
}

.footer-nav-list a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  font-size: 14px;
  color: var(--text-sub);
}

.footer-nav-list a:hover {
  color: var(--accent-strong);
}

.footer-note {
  min-width: 0;
}

.footer-note-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-main);
}

.footer-note-desc {
  margin-top: 12px;
  font-size: 14px;
  color: var(--text-sub);
}

.footer-bottom {
  padding-top: 16px;
  padding-bottom: 24px;
  border-top: 1px solid #cfe0dd;
}

.footer-copyright {
  font-size: 13px;
  color: var(--text-sub);
}

/* ============================================================
   responsive — 900px
   ============================================================ */

@media (max-width: 900px) {
  .hero-section {
    padding-top: 32px;
  }

  .hero-grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 24px;
  }

  .hero-media {
    order: 2;
  }

  .flow-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .index-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .direction-item,
  .flow-stage {
    grid-template-columns: minmax(0, 1fr);
    gap: 20px;
  }

  .duty-item {
    grid-template-columns: minmax(0, 1fr);
    gap: 12px;
  }

  .limits-list {
    grid-template-columns: minmax(0, 1fr);
  }

  .acceptance-list {
    grid-template-columns: minmax(0, 1fr);
  }

  .related-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .footer-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 24px;
  }

  .footer-brand {
    grid-column: 1 / -1;
  }

  .nav-toggle {
    display: flex;
  }

  .site-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--bg-card);
    border-bottom: 1px solid var(--line);
    box-shadow: 0 10px 24px rgba(35, 38, 43, 0.08);
  }

  .nav-list {
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 8px 16px 14px;
  }

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

  .nav-list a {
    display: flex;
    min-height: 48px;
    padding: 0 12px;
    font-size: 16px;
  }
}

/* ============================================================
   responsive — 600px
   ============================================================ */

@media (max-width: 600px) {
  .container,
  .breadcrumb,
  .page-header,
  .header-inner,
  .top-bar-text {
    padding-left: 16px;
    padding-right: 16px;
  }

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

  .hero-desc,
  .page-description,
  .section-desc,
  .section-lead,
  .error-desc {
    font-size: 15px;
  }

  .hero-actions,
  .error-actions {
    flex-direction: column;
    align-items: stretch;
  }

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

  .flow-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .index-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .boundary-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .error-links-list {
    grid-template-columns: minmax(0, 1fr);
  }

  .footer-grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 20px;
  }

  .service-table {
    min-width: 640px;
  }

  .audience-text {
    padding: 14px 16px;
  }

  .direction-item,
  .flow-stage {
    padding: 18px 16px;
  }

  .direction-side,
  .flow-stage-side {
    padding: 16px;
  }

  .faq-list {
    padding: 2px 16px;
  }

  .related-item {
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
  }

  .related-desc {
    text-align: left;
  }
}

/* ============================================================
   动效增强（不影响初始可见性）
   ============================================================ */

@media (prefers-reduced-motion: no-preference) {
  .flow-card,
  .index-card,
  .related-card {
    will-change: transform;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .flow-card,
  .index-card,
  .related-card {
    transition: none;
  }
}