:root {
  --color-primary: #2f4a63;
  --color-primary-dark: #24394d;
  --color-secondary: #5b7c99;
  --color-text: #22282e;
  --color-text-soft: #55606b;
  --color-text-mute: #6b7681;
  --color-bg: #f5f7f9;
  --color-card: #ffffff;
  --color-alert: #c4552f;
  --color-alert-soft: #fbf0eb;
  --color-border: #dde3e8;
  --color-border-strong: #c3ccd4;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --font-mono: "SFMono-Regular", "Menlo", "Consolas", "Liberation Mono", monospace;
  --container: 1180px;
  --radius: 6px;
  --radius-sm: 4px;
  --shadow-card: 0 1px 2px rgba(34, 40, 46, 0.06);
  --line: 1px solid var(--color-border);
}

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

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

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

body {
  margin: 0;
  padding: 0;
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  font-variant-numeric: tabular-nums;
}

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

p {
  margin: 0;
}

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

dl,
dd,
dt,
figure,
figcaption {
  margin: 0;
}

img {
  display: block;
  max-width: 100%;
  height: auto;
  border: 0;
}

a {
  color: var(--color-secondary);
  text-decoration: none;
  transition: color 0.18s ease, border-color 0.18s ease, background-color 0.18s ease;
}

a:hover,
a:focus-visible {
  color: var(--color-primary);
}

a:focus-visible,
button:focus-visible,
summary:focus-visible {
  outline: 2px solid var(--color-secondary);
  outline-offset: 2px;
}

button {
  font-family: inherit;
  font-size: inherit;
  cursor: pointer;
}

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

summary {
  cursor: pointer;
}

/* ==========================================================================
   layout · 全站骨架
   ========================================================================== */

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

.header-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
  min-height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}

.brand {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 12px 0;
  color: var(--color-primary);
}

.brand-name {
  font-size: 20px;
  font-weight: 600;
  letter-spacing: 0;
  line-height: 1.3;
}

.brand-slogan {
  font-size: 12px;
  color: var(--color-text-mute);
  line-height: 1.4;
}

.site-nav {
  display: block;
}

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

.nav-link {
  display: block;
  padding: 10px 14px;
  min-height: 44px;
  line-height: 24px;
  font-size: 15px;
  color: var(--color-text-soft);
  border-radius: var(--radius-sm);
  border-bottom: 2px solid transparent;
}

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

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

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 0;
  background-color: var(--color-card);
  border: var(--line);
  border-radius: var(--radius-sm);
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
}

.nav-toggle-bar {
  display: block;
  width: 20px;
  height: 2px;
  background-color: var(--color-primary);
}

.site-main {
  display: block;
  padding-bottom: 56px;
}

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

.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 13px;
  color: var(--color-text-mute);
  padding: 4px 0 16px;
}

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

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

.breadcrumb-current {
  color: var(--color-text-soft);
}

.page-header {
  padding: 4px 0 28px;
  border-bottom: var(--line);
  margin-bottom: 32px;
}

.page-title {
  font-size: 32px;
  font-weight: 600;
  line-height: 1.35;
  color: var(--color-primary);
}

.page-description {
  margin-top: 12px;
  max-width: 760px;
  font-size: 15px;
  color: var(--color-text-soft);
}

.page-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: 40px;
  align-items: start;
}

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

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

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

.site-footer {
  background-color: var(--color-primary);
  color: #dfe6ec;
  margin-top: 24px;
}

.footer-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 40px 24px 28px;
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) repeat(3, minmax(0, 1fr));
  gap: 32px;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-brand-name {
  font-size: 18px;
  font-weight: 600;
  color: #ffffff;
}

.footer-brand-desc {
  font-size: 14px;
  line-height: 1.7;
  color: #c3d0da;
  max-width: 320px;
}

.footer-top-link {
  align-self: flex-start;
  font-size: 13px;
  color: #c3d0da;
  border-bottom: 1px solid rgba(255, 255, 255, 0.35);
  padding-bottom: 2px;
}

.footer-top-link:hover {
  color: #ffffff;
  border-bottom-color: #ffffff;
}

.footer-group-title {
  font-size: 14px;
  font-weight: 600;
  color: #ffffff;
  margin-bottom: 12px;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer-links a {
  font-size: 14px;
  color: #c3d0da;
  display: inline-block;
  min-height: 24px;
}

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

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.16);
  max-width: var(--container);
  margin: 0 auto;
  padding: 18px 24px 28px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
  justify-content: space-between;
}

.footer-compliance {
  font-size: 13px;
  color: #b6c4d0;
  max-width: 720px;
}

.footer-copy {
  font-size: 13px;
  color: #9fb0be;
}

/* ==========================================================================
   layout · 通用 section
   ========================================================================== */

.section-head {
  margin-bottom: 20px;
}

.section-title {
  font-size: 24px;
  font-weight: 600;
  color: var(--color-primary);
}

.section-intro,
.section-desc {
  margin-top: 10px;
  font-size: 15px;
  color: var(--color-text-soft);
  max-width: 820px;
}

.section-intro a,
.section-desc a {
  color: var(--color-secondary);
  border-bottom: 1px solid var(--color-border-strong);
}

.section-intro a:hover,
.section-desc a:hover {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

.section {
  margin-bottom: 40px;
}

.content-section {
  margin-bottom: 44px;
}

.content-section:last-child {
  margin-bottom: 0;
}

.side-title,
.aside-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 12px;
}

.side-note {
  margin-top: 14px;
  font-size: 13px;
  color: var(--color-text-mute);
  line-height: 1.7;
}

.side-note a {
  color: var(--color-secondary);
}

/* 通用图片容器约束 */
figure {
  margin: 0;
}

figure img {
  width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: var(--radius);
  background-color: var(--color-bg);
  border: var(--line);
}

figcaption {
  margin-top: 8px;
  font-size: 13px;
  color: var(--color-text-mute);
  line-height: 1.6;
}

/* ==========================================================================
   components · 按钮与标签
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 10px 20px;
  font-size: 15px;
  font-weight: 600;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  line-height: 1.4;
}

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

.btn-primary:hover,
.btn-primary:focus-visible {
  background-color: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
  color: #ffffff;
}

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

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

.btn-ghost {
  background-color: transparent;
  color: var(--color-secondary);
  border-color: transparent;
  padding-left: 4px;
  padding-right: 4px;
  text-decoration: underline;
  text-underline-offset: 4px;
}

.btn-ghost:hover,
.btn-ghost:focus-visible {
  color: var(--color-primary);
}

/* ==========================================================================
   components · 侧栏 block（内页共用）
   ========================================================================== */

.aside-block,
.side-block {
  background-color: var(--color-card);
  border: var(--line);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow-card);
}

.aside-block-note {
  border-left: 3px solid var(--color-alert);
}

.aside-text,
.side-text {
  font-size: 14px;
  color: var(--color-text-soft);
  line-height: 1.7;
}

.aside-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 10px;
}

.aside-list li {
  font-size: 14px;
  color: var(--color-text-soft);
  padding-left: 14px;
  position: relative;
  line-height: 1.65;
}

.aside-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background-color: var(--color-secondary);
}

.aside-nav,
.aside-links,
.side-link-list,
.side-index-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.aside-nav a,
.aside-links a,
.side-link-list a,
.side-index-list a {
  display: block;
  min-height: 32px;
  padding: 6px 0;
  font-size: 14px;
  color: var(--color-text-soft);
  border-bottom: 1px dashed var(--color-border);
}

.aside-nav a:hover,
.aside-links a:hover,
.side-link-list a:hover,
.side-index-list a:hover {
  color: var(--color-primary);
}

.side-index-list a {
  font-family: var(--font-sans);
}

.side-link {
  display: inline-block;
  margin-top: 10px;
  font-size: 14px;
  color: var(--color-secondary);
  border-bottom: 1px solid var(--color-border-strong);
}

.side-link:hover {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

/* ==========================================================================
   components · 清单列表通用
   ========================================================================== */

.boundary-list,
.prepare-list,
.compliance-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.boundary-list li,
.prepare-list li,
.compliance-list li {
  font-size: 14px;
  color: var(--color-text-soft);
  padding-left: 16px;
  position: relative;
  line-height: 1.7;
}

.boundary-list li::before,
.prepare-list li::before,
.compliance-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 6px;
  height: 6px;
  border-radius: 1px;
  background-color: var(--color-secondary);
}

/* ==========================================================================
   pages · 首页
   ========================================================================== */

.fact-bar {
  background-color: var(--color-primary-dark);
  color: #d5e0e8;
}

.fact-bar p {
  max-width: var(--container);
  margin: 0 auto;
  padding: 8px 24px;
  font-size: 13px;
  line-height: 1.6;
}

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

/* 首屏运营看板 */
.hero-board {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: 32px;
  align-items: start;
  padding-bottom: 40px;
  border-bottom: var(--line);
  margin-bottom: 40px;
}

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

.hero-eyebrow {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  color: var(--color-secondary);
  background-color: #e8eef3;
  border-radius: var(--radius-sm);
  padding: 4px 10px;
  margin-bottom: 14px;
}

.hero-title {
  font-size: 32px;
  font-weight: 600;
  line-height: 1.35;
  color: var(--color-primary);
}

.hero-summary {
  margin-top: 14px;
  font-size: 16px;
  color: var(--color-text-soft);
  max-width: 640px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}

.hero-figure {
  margin-top: 26px;
}

.hero-figure img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-radius: var(--radius);
}

.hero-side {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 14px;
  background-color: var(--color-card);
  border: var(--line);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow-card);
}

.hero-side .side-title {
  font-size: 14px;
  color: var(--color-text-mute);
  text-transform: none;
  margin-bottom: 4px;
}

.status-card {
  border-top: var(--line);
  padding-top: 12px;
}

.status-card:first-of-type {
  border-top: 0;
  padding-top: 0;
}

.status-num {
  display: block;
  font-family: var(--font-mono);
  font-size: 26px;
  font-weight: 600;
  color: var(--color-primary);
  line-height: 1.2;
}

.status-label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text);
  margin-top: 2px;
}

.status-note {
  margin-top: 6px;
  font-size: 13px;
  color: var(--color-text-mute);
  line-height: 1.65;
}

.status-card-alert .status-num {
  color: var(--color-alert);
}

.status-card-alert .status-note {
  color: var(--color-alert);
}

.content-media {
  margin-top: 32px;
}

.content-media img {
  width: 100%;
  aspect-ratio: 21 / 9;
  object-fit: cover;
  border-radius: var(--radius);
}

/* 服务项目矩阵 */
.service-matrix {
  margin-bottom: 44px;
}

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

.matrix-main {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.service-item {
  background-color: var(--color-card);
  border: var(--line);
  border-radius: var(--radius);
  padding: 20px 22px;
  box-shadow: var(--shadow-card);
  transition: border-color 0.18s ease;
}

.service-item:hover {
  border-color: var(--color-secondary);
}

.service-name {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-primary);
}

.service-desc {
  margin-top: 8px;
  font-size: 15px;
  color: var(--color-text-soft);
}

.service-meta {
  margin-top: 14px;
  display: grid;
  grid-template-columns: 88px minmax(0, 1fr);
  gap: 4px 12px;
  border-top: var(--line);
  padding-top: 12px;
}

.service-meta dt {
  font-size: 13px;
  color: var(--color-text-mute);
  line-height: 1.7;
}

.service-meta dd {
  font-size: 14px;
  color: var(--color-text);
  line-height: 1.7;
}

.matrix-side {
  min-width: 0;
  background-color: var(--color-card);
  border: var(--line);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow-card);
}

.matrix-side .side-title {
  font-size: 14px;
  color: var(--color-text-mute);
  margin-bottom: 10px;
}

.matrix-side .side-title + .boundary-list,
.matrix-side .side-title + .prepare-list {
  margin-bottom: 20px;
}

.matrix-side .prepare-list {
  margin-bottom: 4px;
}

/* 合作流程节点条 */
.process-strip {
  margin-bottom: 44px;
}

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

.process-node {
  min-width: 0;
  background-color: var(--color-card);
  border: var(--line);
  border-top: 3px solid var(--color-secondary);
  border-radius: var(--radius);
  padding: 18px;
  box-shadow: var(--shadow-card);
}

.node-index {
  display: block;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  color: var(--color-secondary);
}

.node-name {
  font-size: 17px;
  font-weight: 600;
  color: var(--color-primary);
  margin-top: 6px;
}

.node-action,
.node-result {
  margin-top: 10px;
  font-size: 14px;
  color: var(--color-text-soft);
  line-height: 1.7;
}

.node-result {
  border-top: 1px dashed var(--color-border);
  padding-top: 10px;
}

.process-alert {
  margin-top: 16px;
  background-color: var(--color-alert-soft);
  border-left: 3px solid var(--color-alert);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  font-size: 14px;
  color: var(--color-alert);
  line-height: 1.7;
}

/* 常见问题与术语入口 */
.faq-entry {
  margin-bottom: 44px;
}

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

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

.question-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 4px;
}

.question-item {
  background-color: var(--color-card);
  border: var(--line);
  border-radius: var(--radius);
  padding: 16px 20px;
  box-shadow: var(--shadow-card);
}

.question-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-primary);
}

.question-brief {
  margin-top: 6px;
  font-size: 14px;
  color: var(--color-text-soft);
  line-height: 1.7;
}

.faq-side {
  min-width: 0;
  background-color: var(--color-card);
  border: var(--line);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow-card);
}

.term-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.term-list li {
  border-bottom: 1px dashed var(--color-border);
}

.term-list li:last-child {
  border-bottom: 0;
}

.term-name {
  display: block;
  padding: 8px 0;
  font-size: 14px;
  color: var(--color-text-soft);
}

/* 站内栏目索引 */
.site-index {
  margin-bottom: 44px;
}

.index-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 14px;
  margin-top: 4px;
}

.index-cell {
  min-width: 0;
}

.index-link {
  display: flex;
  flex-direction: column;
  gap: 6px;
  height: 100%;
  min-height: 96px;
  padding: 16px;
  background-color: var(--color-card);
  border: var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  transition: border-color 0.18s ease;
}

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

.index-name {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-primary);
}

.index-desc {
  font-size: 13px;
  color: var(--color-text-mute);
  line-height: 1.6;
}

/* 合规说明条 */
.compliance-bar {
  background-color: var(--color-card);
  border: var(--line);
  border-left: 3px solid var(--color-primary);
  border-radius: var(--radius);
  padding: 20px 22px;
  margin-bottom: 8px;
}

.compliance-bar .section-title {
  font-size: 16px;
  margin-bottom: 10px;
}

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

.section-tabs .tab-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
}

.tab-button {
  min-height: 44px;
  padding: 10px 18px;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text-soft);
  background-color: var(--color-card);
  border: var(--line);
  border-radius: var(--radius-sm);
}

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

.tab-button.is-active {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  color: #ffffff;
}

.tab-panels {
  margin-top: 16px;
}

.tab-panel {
  background-color: var(--color-card);
  border: var(--line);
  border-radius: var(--radius);
  padding: 16px 20px;
  box-shadow: var(--shadow-card);
}

.tab-panel[hidden] {
  display: none;
}

.tab-panel-note {
  font-size: 14px;
  color: var(--color-text-soft);
  line-height: 1.7;
}

.tab-empty {
  margin-top: 16px;
  background-color: var(--color-alert-soft);
  border-left: 3px solid var(--color-alert);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  font-size: 14px;
  color: var(--color-alert);
  line-height: 1.7;
}

.tab-empty[hidden] {
  display: none;
}

.content-figure img {
  width: 100%;
  aspect-ratio: 21 / 9;
  object-fit: cover;
}

.section-advice .advice-lead {
  margin-top: 14px;
  background-color: var(--color-card);
  border: var(--line);
  border-left: 3px solid var(--color-secondary);
  border-radius: var(--radius);
  padding: 16px 20px;
  font-size: 15px;
  color: var(--color-text);
  line-height: 1.75;
}

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

.advice-item {
  min-width: 0;
  background-color: var(--color-card);
  border: var(--line);
  border-radius: var(--radius);
  padding: 18px 20px;
  box-shadow: var(--shadow-card);
}

.advice-item-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-primary);
}

.advice-item p {
  margin-top: 8px;
  font-size: 14px;
  color: var(--color-text-soft);
  line-height: 1.7;
}

.table-wrap {
  margin-top: 16px;
  overflow-x: auto;
  background-color: var(--color-card);
  border: var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
}

.compare-table {
  min-width: 720px;
}

.table-caption {
  caption-side: top;
  text-align: left;
  padding: 14px 18px 4px;
  font-size: 13px;
  color: var(--color-text-mute);
}

.compare-table th,
.compare-table td {
  padding: 14px 18px;
  font-size: 14px;
  line-height: 1.7;
  text-align: left;
  vertical-align: top;
  border-bottom: var(--line);
}

.compare-table thead th {
  background-color: #eef2f6;
  color: var(--color-primary);
  font-weight: 600;
  white-space: nowrap;
}

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

.compare-table tbody td {
  color: var(--color-text-soft);
}

.compare-table tbody tr:last-child th,
.compare-table tbody tr:last-child td {
  border-bottom: 0;
}

.boundary-columns {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  margin-top: 16px;
}

.boundary-col {
  min-width: 0;
  background-color: var(--color-card);
  border: var(--line);
  border-radius: var(--radius);
  padding: 18px 20px;
  box-shadow: var(--shadow-card);
}

.boundary-col-include {
  border-top: 3px solid var(--color-secondary);
}

.boundary-col-exclude {
  border-top: 3px solid var(--color-alert);
}

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

.boundary-col-exclude .boundary-col-title {
  color: var(--color-alert);
}

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

/* ==========================================================================
   pages · 合作流程页
   ========================================================================== */

.process-stages .section-desc {
  margin-bottom: 20px;
}

.stage-card {
  background-color: var(--color-card);
  border: var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  margin-bottom: 18px;
  overflow: hidden;
}

.stage-head {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 20px;
  background-color: #eef2f6;
  border-bottom: var(--line);
}

.stage-index {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  color: #ffffff;
  background-color: var(--color-primary);
  border-radius: var(--radius-sm);
  padding: 3px 9px;
}

.stage-name {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-primary);
}

.stage-body {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0;
}

.stage-col {
  min-width: 0;
  padding: 18px 20px;
  border-right: var(--line);
}

.stage-col:last-child {
  border-right: 0;
}

.stage-col-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-text-mute);
  margin-bottom: 8px;
}

.stage-col p {
  font-size: 14px;
  color: var(--color-text-soft);
  line-height: 1.7;
}

.stage-col-exception {
  background-color: var(--color-alert-soft);
}

.stage-col-exception .stage-col-title {
  color: var(--color-alert);
}

.stage-col-exception p {
  color: var(--color-alert);
}

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

.coordination-card {
  min-width: 0;
  background-color: var(--color-card);
  border: var(--line);
  border-radius: var(--radius);
  padding: 18px 20px;
  box-shadow: var(--shadow-card);
}

.coordination-stage {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-primary);
  padding-bottom: 10px;
  border-bottom: var(--line);
  margin-bottom: 12px;
}

.coordination-cols {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.coordination-col {
  min-width: 0;
}

.coordination-col-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-text-mute);
  margin-bottom: 8px;
}

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

.coordination-list li {
  font-size: 13px;
  color: var(--color-text-soft);
  line-height: 1.65;
  padding-left: 14px;
  position: relative;
}

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

.section-figure {
  margin-top: 16px;
}

.section-figure img {
  width: 100%;
  aspect-ratio: 21 / 9;
  object-fit: cover;
}

.blocker-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-top: 18px;
}

.blocker-item {
  min-width: 0;
  background-color: var(--color-card);
  border: var(--line);
  border-left: 3px solid var(--color-alert);
  border-radius: var(--radius);
  padding: 16px 20px;
  box-shadow: var(--shadow-card);
}

.blocker-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-primary);
}

.blocker-item p {
  margin-top: 6px;
  font-size: 14px;
  color: var(--color-text-soft);
  line-height: 1.7;
}

.entry-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-top: 16px;
}

.entry-item {
  min-width: 0;
}

.entry-link {
  display: flex;
  flex-direction: column;
  gap: 6px;
  height: 100%;
  min-height: 88px;
  padding: 16px;
  background-color: var(--color-card);
  border: var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
}

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

.entry-name {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-primary);
}

.entry-desc {
  font-size: 13px;
  color: var(--color-text-mute);
  line-height: 1.6;
}

.process-note {
  margin-top: 18px;
  font-size: 14px;
  color: var(--color-text-soft);
  line-height: 1.75;
  background-color: var(--color-card);
  border: var(--line);
  border-left: 3px solid var(--color-secondary);
  border-radius: var(--radius);
  padding: 14px 18px;
}

.process-note a {
  color: var(--color-secondary);
  border-bottom: 1px solid var(--color-border-strong);
}

.process-note a:hover {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

.aside-facts {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

/* ==========================================================================
   pages · 常见问题页
   ========================================================================== */

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

.section-media img {
  width: 100%;
  aspect-ratio: 21 / 9;
  object-fit: cover;
}

.faq-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 18px;
}

.faq-item {
  background-color: var(--color-card);
  border: var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  overflow: hidden;
}

.faq-question {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 52px;
  padding: 14px 20px;
  font-size: 16px;
  font-weight: 600;
  color: var(--color-primary);
  list-style: none;
}

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

.faq-question::before {
  content: "";
  flex: 0 0 auto;
  width: 8px;
  height: 8px;
  border-right: 2px solid var(--color-secondary);
  border-bottom: 2px solid var(--color-secondary);
  transform: rotate(-45deg);
  transition: transform 0.18s ease;
}

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

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

.faq-answer {
  padding: 0 20px 18px 38px;
  font-size: 15px;
  color: var(--color-text-soft);
  line-height: 1.75;
  border-top: 1px dashed var(--color-border);
  padding-top: 14px;
}

.glossary-list {
  margin-top: 18px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.glossary-item {
  min-width: 0;
  background-color: var(--color-card);
  border: var(--line);
  border-radius: var(--radius);
  padding: 16px 20px;
  box-shadow: var(--shadow-card);
}

.glossary-term {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 6px;
}

.glossary-desc {
  font-size: 14px;
  color: var(--color-text-soft);
  line-height: 1.7;
}

.boundary-section .boundary-list {
  margin-top: 18px;
  background-color: var(--color-card);
  border: var(--line);
  border-radius: var(--radius);
  padding: 18px 20px;
  box-shadow: var(--shadow-card);
}

.boundary-item {
  font-size: 14px;
  color: var(--color-text-soft);
  line-height: 1.75;
  padding-left: 16px;
  position: relative;
}

.boundary-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 6px;
  height: 6px;
  border-radius: 1px;
  background-color: var(--color-alert);
}

.related-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-top: 18px;
}

.related-item {
  min-width: 0;
  background-color: var(--color-card);
  border: var(--line);
  border-radius: var(--radius);
  padding: 16px 18px;
  box-shadow: var(--shadow-card);
}

.related-link {
  display: inline-block;
  font-size: 15px;
  font-weight: 600;
  color: var(--color-primary);
  border-bottom: 1px solid var(--color-border-strong);
  margin-bottom: 8px;
}

.related-link:hover {
  border-bottom-color: var(--color-primary);
}

.related-desc {
  font-size: 13px;
  color: var(--color-text-mute);
  line-height: 1.65;
}

.side-boundary .side-text {
  margin-bottom: 12px;
}

/* ==========================================================================
   pages · 反馈说明页
   ========================================================================== */

.routing-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-top: 18px;
}

.routing-card {
  min-width: 0;
  background-color: var(--color-card);
  border: var(--line);
  border-top: 3px solid var(--color-secondary);
  border-radius: var(--radius);
  padding: 18px 20px;
  box-shadow: var(--shadow-card);
}

.routing-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-primary);
}

.routing-path {
  margin-top: 8px;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-secondary);
  background-color: #eef2f6;
  border-radius: var(--radius-sm);
  padding: 5px 10px;
  display: inline-block;
}

.routing-desc {
  margin-top: 10px;
  font-size: 14px;
  color: var(--color-text-soft);
  line-height: 1.7;
}

.prepare-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-top: 18px;
}

.prepare-item {
  min-width: 0;
  background-color: var(--color-card);
  border: var(--line);
  border-radius: var(--radius);
  padding: 18px 20px;
  box-shadow: var(--shadow-card);
}

.prepare-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-primary);
  padding-bottom: 10px;
  border-bottom: var(--line);
  margin-bottom: 12px;
}

.prepare-fields {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.prepare-fields li {
  font-size: 14px;
  color: var(--color-text-soft);
  line-height: 1.7;
  padding-left: 14px;
  position: relative;
}

.prepare-fields li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background-color: var(--color-secondary);
}

.notes-columns {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-top: 18px;
}

.notes-column {
  min-width: 0;
  background-color: var(--color-card);
  border: var(--line);
  border-radius: var(--radius);
  padding: 18px 20px;
  box-shadow: var(--shadow-card);
}

.notes-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 12px;
}

.notes-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.notes-list li {
  font-size: 14px;
  color: var(--color-text-soft);
  line-height: 1.7;
  padding-left: 14px;
  position: relative;
}

.notes-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background-color: var(--color-secondary);
}

.related-links {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin-top: 18px;
}

.related-links li {
  min-width: 0;
}

.related-links a {
  display: flex;
  align-items: center;
  min-height: 52px;
  padding: 12px 16px;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-primary);
  background-color: var(--color-card);
  border: var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
}

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

.compliance-note {
  margin-top: 18px;
  background-color: var(--color-alert-soft);
  border-left: 3px solid var(--color-alert);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  font-size: 14px;
  color: var(--color-alert);
  line-height: 1.7;
}

/* ==========================================================================
   pages · 404
   ========================================================================== */

.error-main {
  max-width: var(--container);
  margin: 0 auto;
  padding: 48px 24px 0;
}

.error-panel {
  background-color: var(--color-card);
  border: var(--line);
  border-radius: var(--radius);
  padding: 40px 32px;
  box-shadow: var(--shadow-card);
  max-width: 720px;
}

.error-code {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 600;
  color: var(--color-alert);
}

.error-title {
  font-size: 32px;
  font-weight: 600;
  color: var(--color-primary);
  margin-top: 10px;
}

.error-desc {
  margin-top: 12px;
  font-size: 15px;
  color: var(--color-text-soft);
}

.error-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.error-note {
  margin-top: 20px;
  font-size: 13px;
  color: var(--color-text-mute);
  line-height: 1.7;
}

/* ==========================================================================
   responsive
   ========================================================================== */

@media (max-width: 1024px) {
  .page-layout {
    grid-template-columns: minmax(0, 1fr) 280px;
    gap: 28px;
  }

  .hero-board,
  .matrix-layout,
  .faq-layout {
    grid-template-columns: minmax(0, 1fr) 280px;
    gap: 24px;
  }

  .index-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

@media (max-width: 900px) {
  .header-inner {
    min-height: 60px;
    padding: 0 20px;
  }

  .nav-toggle {
    display: flex;
  }

  .site-nav {
    flex: 1 1 100%;
  }

  .nav-list {
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
    width: 100%;
    padding-bottom: 12px;
  }

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

  .nav-link {
    min-height: 44px;
    padding: 10px 12px;
    border-bottom: var(--line);
    border-left: 2px solid transparent;
  }

  .nav-link.is-current {
    border-bottom-color: var(--color-border);
    border-left-color: var(--color-primary);
    background-color: var(--color-bg);
  }

  .inner-main {
    padding: 20px 20px 0;
  }

  .home-main {
    padding: 24px 20px 0;
  }

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

  .hero-side,
  .matrix-side,
  .faq-side,
  .layout-aside,
  .layout-side {
    order: 2;
  }

  .hero-main,
  .matrix-main,
  .faq-main,
  .layout-main {
    order: 1;
  }

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

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

  .stage-col {
    border-right: 0;
    border-bottom: var(--line);
  }

  .stage-col:last-child {
    border-bottom: 0;
  }

  .coordination-grid,
  .blocker-list,
  .advice-list,
  .boundary-columns,
  .glossary-list,
  .routing-grid,
  .prepare-list,
  .notes-columns {
    grid-template-columns: minmax(0, 1fr);
  }

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

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

  .footer-inner {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 28px;
    padding: 32px 20px 24px;
  }

  .footer-bottom {
    padding: 16px 20px 24px;
  }

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

@media (max-width: 600px) {
  body {
    font-size: 15px;
  }

  .fact-bar p {
    padding: 8px 16px;
    font-size: 12px;
  }

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

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

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

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

  .home-main {
    padding: 20px 16px 0;
  }

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

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

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

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

  .btn {
    width: 100%;
  }

  .btn-ghost {
    width: auto;
    align-self: flex-start;
  }

  .process-nodes,
  .entry-list,
  .index-grid,
  .related-links {
    grid-template-columns: minmax(0, 1fr);
  }

  .service-meta {
    grid-template-columns: minmax(0, 1fr);
    gap: 2px;
  }

  .service-meta dd {
    margin-bottom: 8px;
  }

  .table-wrap {
    border-radius: var(--radius-sm);
  }

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

  .compare-table th,
  .compare-table td {
    padding: 12px 14px;
    font-size: 13px;
  }

  .faq-answer {
    padding-left: 22px;
  }

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

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

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

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

  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
  }
}