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

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

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

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.7;
  color: #24313f;
  background-color: #eef1f4;
}

body.site-body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

h1, h2, h3, h4, h5, h6 {
  margin: 0 0 0.5em;
  font-weight: 600;
  line-height: 1.4;
  color: #24313f;
}

p {
  margin: 0 0 1em;
}

a {
  color: #2b6a7a;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

ul, ol {
  margin: 0 0 1em;
  padding-left: 1.25em;
}

li {
  margin-bottom: 0.4em;
}

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

figure {
  margin: 0 0 1.5em;
}

figcaption {
  font-size: 0.85rem;
  line-height: 1.6;
  color: #5b7a8c;
  margin-top: 0.5em;
  text-align: center;
}

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

/* ==========================================================================
   layout
   ========================================================================== */

.site-header {
  background-color: #24313f;
  color: #fff;
  position: relative;
  z-index: 100;
}

.header-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 20px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.brand-link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  color: #fff;
  text-decoration: none;
  flex-shrink: 0;
}

.brand-link:hover {
  text-decoration: none;
}

.brand-name {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: 0.5px;
  color: #fff;
}

.brand-tagline {
  font-size: 0.8rem;
  color: #9fb3c0;
  white-space: nowrap;
}

.site-nav {
  margin-left: auto;
}

.nav-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-item {
  margin: 0;
}

.nav-link {
  display: block;
  padding: 8px 14px;
  font-size: 0.92rem;
  color: #c9d4dc;
  border-radius: 4px;
  line-height: 1.4;
  transition: background-color 0.2s ease, color 0.2s ease;
}

.nav-link:hover {
  color: #fff;
  background-color: rgba(255, 255, 255, 0.08);
  text-decoration: none;
}

.nav-link.is-current {
  color: #fff;
  background-color: rgba(255, 255, 255, 0.14);
  font-weight: 500;
}

.header-action {
  display: inline-block;
  padding: 8px 18px;
  font-size: 0.92rem;
  font-weight: 500;
  color: #24313f;
  background-color: #c8a24a;
  border-radius: 4px;
  white-space: nowrap;
  flex-shrink: 0;
  line-height: 1.5;
  transition: background-color 0.2s ease;
}

.header-action:hover {
  background-color: #b8923d;
  text-decoration: none;
  color: #24313f;
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 10px;
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 4px;
  cursor: pointer;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
}

.nav-toggle-bar {
  display: block;
  width: 22px;
  height: 2px;
  background-color: #fff;
  border-radius: 1px;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.site-main {
  flex: 1 0 auto;
}

.site-main.inner-main {
  max-width: 1280px;
  width: 100%;
  margin: 0 auto;
  padding: 24px 20px 48px;
}

.site-footer {
  background-color: #24313f;
  color: #a9b7c2;
  font-size: 0.9rem;
  flex-shrink: 0;
}

.footer-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 40px 20px 24px;
}

.footer-brand {
  margin-bottom: 28px;
}

.footer-brand-name {
  font-size: 1.2rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 6px;
}

.footer-brand-desc {
  font-size: 0.88rem;
  line-height: 1.7;
  color: #8fa1ae;
  max-width: 640px;
  margin-bottom: 0;
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  margin-bottom: 28px;
}

.footer-group-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: #fff;
  margin-bottom: 12px;
}

.footer-group ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.footer-group li {
  margin-bottom: 6px;
}

.footer-group a {
  color: #a9b7c2;
  font-size: 0.88rem;
  line-height: 1.6;
}

.footer-group a:hover {
  color: #fff;
}

.footer-bottom {
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  font-size: 0.82rem;
  color: #7d909e;
}

.footer-bottom p {
  margin-bottom: 4px;
}

.footer-boundary {
  line-height: 1.6;
}

/* 面包屑 */

.breadcrumb {
  font-size: 0.88rem;
  color: #5b7a8c;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
}

.breadcrumb a {
  color: #2b6a7a;
}

.breadcrumb a:hover {
  text-decoration: underline;
}

.breadcrumb-sep {
  color: #9fb3c0;
}

.breadcrumb-current {
  color: #24313f;
  font-weight: 500;
}

/* 页面标题区 */

.page-header {
  margin-bottom: 32px;
}

.page-title {
  font-size: 32px;
  font-weight: 700;
  line-height: 1.3;
  color: #24313f;
  margin-bottom: 10px;
}

.page-description {
  font-size: 1rem;
  line-height: 1.7;
  color: #5b7a8c;
  max-width: 720px;
  margin-bottom: 0;
}

/* 侧栏布局 */

.layout-shell {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 40px;
  align-items: start;
}

.layout-shell.sidebar-left {
  grid-template-columns: 220px 1fr;
}

.layout-shell.sidebar-left > .page-toc,
.layout-shell.sidebar-left > .sidebar,
.layout-shell.sidebar-left > .aside-toc,
.layout-shell.sidebar-left > .page-sidebar {
  grid-column: 1;
  grid-row: 1;
}

.layout-shell.sidebar-left > .site-main,
.layout-shell.sidebar-left > .main-content,
.layout-shell.sidebar-left > .page-content,
.layout-shell.sidebar-left > .content-area {
  grid-column: 2;
  grid-row: 1;
}

/* page-layout 变体 */

.page-layout.sidebar-left {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 40px;
  align-items: start;
}

.page-layout.sidebar-left > .page-toc,
.page-layout.sidebar-left > .sidebar,
.page-layout.sidebar-left > .page-sidebar {
  grid-column: 1;
  grid-row: 1;
}

.page-layout.sidebar-left > .page-content,
.page-layout.sidebar-left > .content-area,
.page-layout.sidebar-left > .main-content {
  grid-column: 2;
  grid-row: 1;
}

/* body 直接子元素为侧栏时 */

body.sidebar-left {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 40px;
  max-width: 1280px;
  margin: 0 auto;
  padding: 24px 20px 48px;
  align-items: start;
}

body.sidebar-left > .page-toc,
body.sidebar-left > .sidebar,
body.sidebar-left > .aside-toc,
body.sidebar-left > .page-sidebar {
  grid-column: 1;
  grid-row: 1;
}

body.sidebar-left > .site-main,
body.sidebar-left > .main-content,
body.sidebar-left > .page-content,
body.sidebar-left > .content-area {
  grid-column: 2;
  grid-row: 1;
}

/* 侧栏内容 */

.page-toc,
.sidebar,
.aside-toc,
.page-sidebar {
  position: sticky;
  top: 84px;
}

.toc-sticky,
.sidebar-inner {
  background-color: #fff;
  border: 1px solid #d8dfe5;
  border-radius: 6px;
  padding: 20px 16px;
}

.toc-title,
.sidebar-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: #24313f;
  margin-bottom: 14px;
  padding-bottom: 10px;
  border-bottom: 1px solid #e3e8ec;
}

.toc-list,
.sidebar-links,
.sidebar-nav ul,
.sidebar-list,
.sidebar-nav {
  list-style: none;
  margin: 0;
  padding: 0;
}

.toc-item,
.sidebar-links li,
.sidebar-list li,
.sidebar-nav li {
  margin-bottom: 2px;
}

.toc-item a,
.sidebar-links a,
.sidebar-list a,
.sidebar-nav a {
  display: block;
  padding: 8px 10px;
  font-size: 0.9rem;
  line-height: 1.5;
  color: #4a5b6a;
  border-radius: 4px;
  border-left: 2px solid transparent;
}

.toc-item a:hover,
.sidebar-links a:hover,
.sidebar-list a:hover,
.sidebar-nav a:hover {
  background-color: #eef1f4;
  color: #24313f;
  text-decoration: none;
}

/* 内容区块 */

.content-section {
  margin-bottom: 48px;
}

.section-title {
  font-size: 24px;
  font-weight: 600;
  color: #24313f;
  margin-bottom: 14px;
  padding-bottom: 10px;
  border-bottom: 2px solid #c8a24a;
  display: inline-block;
}

.section-lead,
.section-desc,
.section-intro {
  font-size: 1rem;
  line-height: 1.7;
  color: #4a5b6a;
  max-width: 760px;
  margin-bottom: 24px;
}

/* 相关链接 */

.related-links {
  margin-top: 40px;
  padding-top: 20px;
  border-top: 1px solid #d8dfe5;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px 24px;
}

.related-links-label {
  font-size: 0.9rem;
  font-weight: 600;
  color: #24313f;
}

.related-links-item {
  font-size: 0.9rem;
  color: #2b6a7a;
  padding: 6px 0;
}

.related-links-item:hover {
  text-decoration: underline;
}

/* ==========================================================================
   components
   ========================================================================== */

/* ---- 图片容器 ---- */

.hero-figure,
.content-media,
.content-figure,
.section-figure,
.process-figure,
.trouble-figure {
  background-color: #e3e8ec;
  border-radius: 6px;
  overflow: hidden;
}

.hero-figure img,
.content-media img,
.content-figure img,
.section-figure img,
.process-figure img,
.trouble-figure img {
  width: 100%;
  height: auto;
  object-fit: cover;
}

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

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

/* ---- 编号模块 ---- */

.prep-item {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  padding: 14px 0;
  border-bottom: 1px solid #e3e8ec;
}

.prep-item:last-child {
  border-bottom: none;
}

.prep-num {
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  font-size: 0.9rem;
  font-weight: 600;
  color: #24313f;
  background-color: #e3e8ec;
  border-radius: 4px;
}

.prep-text {
  font-size: 0.95rem;
  line-height: 1.6;
  color: #4a5b6a;
}

.step-number {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  font-size: 1rem;
  font-weight: 700;
  color: #24313f;
  background-color: #e3e8ec;
  border-radius: 4px;
}

.item-index {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  font-size: 0.85rem;
  font-weight: 600;
  color: #24313f;
  background-color: #e3e8ec;
  border-radius: 4px;
}

.object-index {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  font-size: 0.85rem;
  font-weight: 600;
  color: #24313f;
  background-color: #e3e8ec;
  border-radius: 4px;
}

/* ---- 动态清单 ---- */

.daily-overview {
  background-color: #fff;
  border: 1px solid #d8dfe5;
  border-radius: 6px;
  padding: 32px 28px;
}

.daily-list {
  display: flex;
  flex-direction: column;
}

.daily-item {
  padding: 18px 0;
  border-bottom: 1px solid #e3e8ec;
}

.daily-item:last-child {
  border-bottom: none;
}

.daily-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 8px;
}

.daily-time {
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  font-size: 0.82rem;
  color: #5b7a8c;
}

.daily-source {
  font-size: 0.82rem;
  color: #2b6a7a;
  background-color: #e8f1f3;
  padding: 2px 8px;
  border-radius: 3px;
}

.daily-summary {
  font-size: 0.95rem;
  line-height: 1.7;
  color: #24313f;
  margin-bottom: 8px;
}

.daily-tag {
  display: inline-block;
  font-size: 0.78rem;
  padding: 3px 10px;
  border-radius: 3px;
  font-weight: 500;
}

.tag-normal {
  color: #24313f;
  background-color: #e3e8ec;
}

.tag-updated {
  color: #2b6a7a;
  background-color: #e8f1f3;
}

.tag-verify {
  color: #2bb3a3;
  background-color: #e0f5f2;
}

.daily-note {
  font-size: 0.85rem;
  color: #5b7a8c;
  margin-top: 16px;
  margin-bottom: 0;
}

/* ---- 双栏卡片 ---- */

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

.dual-card {
  background-color: #fff;
  border: 1px solid #d8dfe5;
  border-radius: 6px;
  padding: 28px 24px;
}

.dual-card h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 10px;
}

.dual-card p {
  font-size: 0.92rem;
  color: #4a5b6a;
  line-height: 1.7;
}

.card-list {
  list-style: none;
  margin: 0 0 16px;
  padding: 0;
}

.card-list li {
  font-size: 0.9rem;
  line-height: 1.6;
  color: #4a5b6a;
  padding: 6px 0 6px 18px;
  position: relative;
}

.card-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 14px;
  width: 6px;
  height: 6px;
  background-color: #c8a24a;
  border-radius: 1px;
}

.card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.92rem;
  font-weight: 500;
  color: #2b6a7a;
  padding: 8px 0;
}

.card-link:hover {
  text-decoration: underline;
}

/* ---- 流程步骤 ---- */

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

.process-step {
  background-color: #fff;
  border: 1px solid #d8dfe5;
  border-radius: 6px;
  padding: 24px 20px;
  position: relative;
}

.process-step .step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  font-size: 0.9rem;
  font-weight: 700;
  color: #24313f;
  background-color: #e3e8ec;
  border-radius: 4px;
  margin-bottom: 12px;
}

.process-step h3 {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.process-step .step-action {
  font-size: 0.88rem;
  color: #4a5b6a;
  line-height: 1.6;
  margin-bottom: 6px;
}

.process-step .step-result {
  font-size: 0.85rem;
  color: #5b7a8c;
  line-height: 1.6;
  margin-bottom: 0;
}

.path-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.95rem;
  font-weight: 500;
  color: #2b6a7a;
  padding: 10px 0;
}

.path-link:hover {
  text-decoration: underline;
}

/* ---- 任务卡 ---- */

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

.task-card {
  background-color: #fff;
  border: 1px solid #d8dfe5;
  border-radius: 6px;
  padding: 28px 24px;
}

.task-card h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 10px;
}

.task-card p {
  font-size: 0.92rem;
  color: #4a5b6a;
  line-height: 1.7;
  margin-bottom: 16px;
}

.task-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.92rem;
  font-weight: 500;
  color: #2b6a7a;
  padding: 8px 0;
}

.task-link:hover {
  text-decoration: underline;
}

/* ---- 边界卡 ---- */

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

.boundary-card {
  background-color: #fff;
  border: 1px solid #d8dfe5;
  border-radius: 6px;
  padding: 22px 20px;
}

.boundary-card h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 8px;
  color: #24313f;
}

.boundary-card p {
  font-size: 0.88rem;
  color: #4a5b6a;
  line-height: 1.6;
  margin-bottom: 0;
}

/* ---- 引导条 ---- */

.pre-footer-guide {
  background-color: #24313f;
  border-radius: 6px;
  padding: 32px 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 20px;
}

.pre-footer-guide p {
  font-size: 1.05rem;
  color: #fff;
  margin-bottom: 0;
  flex: 1 1 280px;
}

.guide-links {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.guide-link {
  display: inline-block;
  padding: 10px 22px;
  font-size: 0.92rem;
  font-weight: 500;
  color: #24313f;
  background-color: #fff;
  border-radius: 4px;
  line-height: 1.5;
}

.guide-link:hover {
  background-color: #e3e8ec;
  text-decoration: none;
}

.guide-link-primary {
  background-color: #c8a24a;
  color: #24313f;
}

.guide-link-primary:hover {
  background-color: #b8923d;
}

/* ---- 参数网格 ---- */

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

.param-item {
  background-color: #fff;
  border: 1px solid #d8dfe5;
  border-radius: 6px;
  padding: 18px 16px;
  display: flex;
  flex-direction: column;
}

.param-label {
  font-size: 0.82rem;
  color: #5b7a8c;
  margin-bottom: 6px;
}

.param-value {
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  font-size: 1.3rem;
  font-weight: 700;
  color: #24313f;
  line-height: 1.3;
  margin-bottom: 4px;
}

.param-note {
  font-size: 0.82rem;
  color: #5b7a8c;
  line-height: 1.5;
}

/* ---- 来源卡 ---- */

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

.source-card {
  background-color: #fff;
  border: 1px solid #d8dfe5;
  border-radius: 6px;
  padding: 24px 20px;
  display: flex;
  flex-direction: column;
}

.card-title {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 10px;
}

.card-desc {
  font-size: 0.9rem;
  color: #4a5b6a;
  line-height: 1.7;
  flex: 1 1 auto;
  margin-bottom: 12px;
}

.card-tip {
  font-size: 0.82rem;
  color: #5b7a8c;
  line-height: 1.6;
  margin-bottom: 0;
  padding-top: 10px;
  border-top: 1px solid #e3e8ec;
}

/* ---- 监测对象 ---- */

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

.object-group {
  background-color: #fff;
  border: 1px solid #d8dfe5;
  border-radius: 6px;
  padding: 20px 16px;
}

.object-group .object-index {
  margin-bottom: 10px;
}

.object-title {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.object-desc {
  font-size: 0.88rem;
  color: #4a5b6a;
  line-height: 1.6;
  margin-bottom: 0;
}

/* ---- 边界列表 ---- */

.boundary-list {
  list-style: none;
  margin: 0 0 24px;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.boundary-item {
  background-color: #fff;
  border: 1px solid #d8dfe5;
  border-radius: 6px;
  padding: 18px 20px;
}

.boundary-title,
.boundary-item-title {
  font-size: 1rem;
  font-weight: 600;
  color: #24313f;
  margin-bottom: 6px;
}

.boundary-desc {
  font-size: 0.9rem;
  color: #4a5b6a;
  line-height: 1.7;
  margin-bottom: 0;
}

.section-outro {
  font-size: 0.95rem;
  color: #4a5b6a;
  line-height: 1.7;
}

.section-outro a {
  color: #2b6a7a;
  font-weight: 500;
}

.section-outro a:hover {
  text-decoration: underline;
}

/* ---- 响应机制：总览 ---- */

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

.overview-item {
  background-color: #fff;
  border: 1px solid #d8dfe5;
  border-radius: 6px;
  padding: 20px 18px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.overview-item .item-index {
  margin-bottom: 4px;
}

.item-title {
  font-size: 1rem;
  font-weight: 600;
  color: #24313f;
}

.item-text {
  font-size: 0.9rem;
  color: #4a5b6a;
  line-height: 1.6;
  margin-bottom: 0;
}

/* ---- 任务分级卡 ---- */

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

.level-card {
  background-color: #fff;
  border: 1px solid #d8dfe5;
  border-radius: 6px;
  padding: 24px 20px;
}

.level-tag {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 500;
  color: #24313f;
  background-color: #e3e8ec;
  padding: 3px 10px;
  border-radius: 3px;
  margin-bottom: 12px;
}

.level-title {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 10px;
}

.level-text {
  font-size: 0.9rem;
  color: #4a5b6a;
  line-height: 1.7;
  margin-bottom: 14px;
}

.level-points {
  list-style: none;
  margin: 0;
  padding: 0;
}

.level-points li {
  font-size: 0.85rem;
  color: #5b7a8c;
  line-height: 1.6;
  padding: 4px 0 4px 16px;
  position: relative;
}

.level-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 12px;
  width: 5px;
  height: 5px;
  background-color: #c8a24a;
  border-radius: 1px;
}

/* ---- 响应节点表 ---- */

.node-table-wrap {
  overflow-x: auto;
  background-color: #fff;
  border: 1px solid #d8dfe5;
  border-radius: 6px;
}

.node-table {
  min-width: 640px;
  font-size: 0.9rem;
}

.node-table thead th {
  background-color: #24313f;
  color: #fff;
  font-weight: 500;
  text-align: left;
  padding: 12px 16px;
  white-space: nowrap;
}

.node-table tbody td {
  padding: 12px 16px;
  border-bottom: 1px solid #e3e8ec;
  color: #4a5b6a;
  line-height: 1.6;
  vertical-align: top;
}

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

.node-table tbody tr:nth-child(even) {
  background-color: #f7f9fa;
}

/* ---- 交付标准 ---- */

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

.standard-item {
  background-color: #fff;
  border: 1px solid #d8dfe5;
  border-radius: 6px;
  padding: 24px 20px;
}

.standard-title {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 10px;
  color: #24313f;
}

.standard-text {
  font-size: 0.9rem;
  color: #4a5b6a;
  line-height: 1.7;
  margin-bottom: 0;
}

/* ---- 相关链接列表（响应机制页） ---- */

.related-link-list {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 24px;
}

.related-link-list a {
  font-size: 0.92rem;
  color: #2b6a7a;
  padding: 6px 0;
}

.related-link-list a:hover {
  text-decoration: underline;
}

/* ---- 流程页：步骤组 ---- */

.process-step .step-head {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 20px;
  padding-bottom: 14px;
  border-bottom: 2px solid #c8a24a;
}

.process-step .step-title {
  font-size: 24px;
  font-weight: 600;
  color: #24313f;
  margin-bottom: 0;
}

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

.process-step .step-col {
  background-color: #fff;
  border: 1px solid #d8dfe5;
  border-radius: 6px;
  padding: 20px 18px;
}

.process-step .step-col h3 {
  font-size: 0.95rem;
  font-weight: 600;
  color: #24313f;
  margin-bottom: 10px;
  padding-bottom: 8px;
  border-bottom: 1px solid #e3e8ec;
}

.process-step .step-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.process-step .step-list li {
  font-size: 0.88rem;
  line-height: 1.6;
  color: #4a5b6a;
  padding: 4px 0;
}

/* ---- 下一步引导 ---- */

.next-guide {
  margin-top: 40px;
}

.next-guide-title {
  font-size: 24px;
  font-weight: 600;
  color: #24313f;
  margin-bottom: 20px;
}

.guide-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.guide-card {
  background-color: #fff;
  border: 1px solid #d8dfe5;
  border-radius: 6px;
  padding: 24px 20px;
}

.guide-card h3 {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.guide-card p {
  font-size: 0.9rem;
  color: #4a5b6a;
  line-height: 1.7;
  margin-bottom: 14px;
}

.guide-card a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.92rem;
  font-weight: 500;
  color: #2b6a7a;
}

.guide-card a:hover {
  text-decoration: underline;
}

/* ---- FAQ ---- */

.faq-section {
  margin-bottom: 48px;
}

.faq-section h2 {
  font-size: 24px;
  font-weight: 600;
  color: #24313f;
  margin-bottom: 14px;
  padding-bottom: 10px;
  border-bottom: 2px solid #c8a24a;
  display: inline-block;
}

.faq-section .section-intro {
  font-size: 0.95rem;
  color: #4a5b6a;
  line-height: 1.7;
  margin-bottom: 20px;
}

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

.faq-item {
  background-color: #fff;
  border: 1px solid #d8dfe5;
  border-radius: 6px;
  overflow: hidden;
}

.faq-item summary {
  padding: 16px 20px;
  font-size: 0.95rem;
  font-weight: 500;
  color: #24313f;
  cursor: pointer;
  list-style: none;
  position: relative;
  padding-right: 44px;
  line-height: 1.5;
}

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

.faq-item summary::after {
  content: "+";
  position: absolute;
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.3rem;
  color: #5b7a8c;
  font-weight: 400;
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
}

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

.faq-item summary:hover {
  background-color: #f7f9fa;
}

.faq-body {
  padding: 0 20px 18px;
  border-top: 1px solid #e3e8ec;
}

.faq-body p {
  font-size: 0.9rem;
  color: #4a5b6a;
  line-height: 1.7;
  margin-bottom: 0;
  padding-top: 14px;
}

.faq-more {
  background-color: #fff;
  border: 1px solid #d8dfe5;
  border-radius: 6px;
  padding: 24px 20px;
  margin-top: 40px;
}

.faq-more h2 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.faq-more p {
  font-size: 0.9rem;
  color: #4a5b6a;
  margin-bottom: 14px;
}

.more-links {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}

.more-links a {
  font-size: 0.92rem;
  font-weight: 500;
  color: #2b6a7a;
}

.more-links a:hover {
  text-decoration: underline;
}

/* ---- 问题处理 ---- */

.trouble-section {
  margin-bottom: 48px;
}

.trouble-section h2 {
  font-size: 24px;
  font-weight: 600;
  color: #24313f;
  margin-bottom: 14px;
  padding-bottom: 10px;
  border-bottom: 2px solid #c8a24a;
  display: inline-block;
}

.trouble-section .section-desc {
  font-size: 0.95rem;
  color: #4a5b6a;
  line-height: 1.7;
  margin-bottom: 24px;
}

.cause-list,
.step-list {
  background-color: #fff;
  border: 1px solid #d8dfe5;
  border-radius: 6px;
  padding: 20px 20px;
  margin-bottom: 20px;
}

.cause-list h3,
.step-list h3 {
  font-size: 0.95rem;
  font-weight: 600;
  color: #24313f;
  margin-bottom: 10px;
  padding-bottom: 8px;
  border-bottom: 1px solid #e3e8ec;
}

.cause-list ul,
.step-list ol {
  margin: 0;
  padding-left: 1.2em;
}

.cause-list li,
.step-list li {
  font-size: 0.9rem;
  line-height: 1.6;
  color: #4a5b6a;
  margin-bottom: 6px;
}

.related-link {
  font-size: 0.9rem;
  color: #4a5b6a;
  margin-top: 8px;
}

.related-link a {
  color: #2b6a7a;
  font-weight: 500;
  margin-right: 16px;
}

.related-link a:hover {
  text-decoration: underline;
}

/* ---- 复核路径 ---- */

.review-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.review-card {
  background-color: #fff;
  border: 1px solid #d8dfe5;
  border-radius: 6px;
  padding: 24px 20px;
}

.review-card h3 {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.review-card p {
  font-size: 0.9rem;
  color: #4a5b6a;
  line-height: 1.7;
  margin-bottom: 14px;
}

.review-card a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.92rem;
  font-weight: 500;
  color: #2b6a7a;
}

.review-card a:hover {
  text-decoration: underline;
}

/* ---- 关于页 ---- */

.section-body p {
  font-size: 0.95rem;
  color: #4a5b6a;
  line-height: 1.8;
  max-width: 760px;
}

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

.principle-item {
  background-color: #fff;
  border: 1px solid #d8dfe5;
  border-radius: 6px;
  padding: 22px 20px;
}

.principle-title {
  font-size: 1.05rem;
  font-weight: 600;
  color: #24313f;
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.principle-title::before {
  content: "";
  width: 8px;
  height: 8px;
  background-color: #c8a24a;
  border-radius: 2px;
  flex-shrink: 0;
}

.principle-item p {
  font-size: 0.9rem;
  color: #4a5b6a;
  line-height: 1.7;
  margin-bottom: 0;
}

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

.scope-card {
  background-color: #fff;
  border: 1px solid #d8dfe5;
  border-radius: 6px;
  padding: 22px 20px;
}

.scope-card-title {
  font-size: 1rem;
  font-weight: 600;
  color: #24313f;
  margin-bottom: 12px;
}

.scope-card ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.scope-card li {
  font-size: 0.88rem;
  color: #4a5b6a;
  line-height: 1.6;
  padding: 4px 0 4px 16px;
  position: relative;
}

.scope-card li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 12px;
  width: 5px;
  height: 5px;
  background-color: #c8a24a;
  border-radius: 1px;
}

.section-guide {
  background-color: #fff;
  border: 1px solid #d8dfe5;
  border-radius: 6px;
  padding: 20px;
  margin-top: 24px;
}

.section-guide p {
  font-size: 0.9rem;
  color: #4a5b6a;
  margin-bottom: 0;
}

.section-guide a {
  color: #2b6a7a;
  font-weight: 500;
  margin-right: 16px;
}

.section-guide a:hover {
  text-decoration: underline;
}

/* ---- 404 ---- */

.error-main {
  max-width: 1280px;
  margin: 0 auto;
  padding: 80px 20px;
  flex: 1 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
}

.error-content {
  text-align: center;
  max-width: 560px;
  padding: 48px 40px;
  background-color: #fff;
  border: 1px solid #d8dfe5;
  border-radius: 8px;
}

.error-code {
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  font-size: 3.5rem;
  font-weight: 700;
  color: #24313f;
  line-height: 1.2;
  margin-bottom: 12px;
}

.error-content h1 {
  font-size: 1.4rem;
  font-weight: 600;
  margin-bottom: 12px;
}

.error-desc {
  font-size: 0.95rem;
  color: #4a5b6a;
  line-height: 1.7;
  margin-bottom: 24px;
}

.error-actions {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 14px;
}

.error-link {
  display: inline-block;
  padding: 10px 22px;
  font-size: 0.92rem;
  font-weight: 500;
  color: #24313f;
  background-color: #e3e8ec;
  border-radius: 4px;
  line-height: 1.5;
}

.error-link:hover {
  background-color: #d8dfe5;
  text-decoration: none;
}

.error-link:first-child {
  background-color: #c8a24a;
}

.error-link:first-child:hover {
  background-color: #b8923d;
}

/* ==========================================================================
   pages
   ========================================================================== */

/* ---- 首页 ---- */

.home-main {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 20px 48px;
}

.hero-section {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  padding: 48px 0 40px;
  align-items: center;
}

.hero-content h1 {
  font-size: 2.2rem;
  font-weight: 700;
  line-height: 1.3;
  color: #24313f;
  margin-bottom: 12px;
}

.hero-lead {
  font-size: 1.15rem;
  font-weight: 500;
  color: #24313f;
  margin-bottom: 12px;
}

.hero-desc {
  font-size: 0.95rem;
  color: #4a5b6a;
  line-height: 1.7;
  margin-bottom: 24px;
}

.prep-list {
  margin-bottom: 24px;
}

.prep-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: #24313f;
  margin-bottom: 8px;
  padding-bottom: 8px;
  border-bottom: 1px solid #d8dfe5;
}

.prep-steps {
  list-style: none;
  margin: 0;
  padding: 0;
}

.hero-cta {
  display: inline-block;
  padding: 12px 28px;
  font-size: 1rem;
  font-weight: 500;
  color: #fff;
  background-color: #24313f;
  border-radius: 4px;
  line-height: 1.5;
}

.hero-cta:hover {
  background-color: #1a2530;
  text-decoration: none;
}

.hero-figure img {
  aspect-ratio: 4 / 3;
}

.hero-figure figcaption {
  padding: 0 8px 8px;
}

.content-media-primary {
  margin-top: 24px;
}

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

.content-media-primary figcaption {
  padding: 0 8px 8px;
}

.dual-column-section,
.process-path,
.help-tasks,
.boundary-summary {
  margin-bottom: 48px;
}

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

.section-heading h2 {
  font-size: 24px;
  font-weight: 600;
  color: #24313f;
  margin-bottom: 8px;
  padding-bottom: 10px;
  border-bottom: 2px solid #c8a24a;
  display: inline-block;
}

.section-heading p {
  font-size: 0.95rem;
  color: #4a5b6a;
  line-height: 1.7;
  max-width: 720px;
  margin-bottom: 0;
}

.boundary-intro {
  font-size: 0.95rem;
  color: #4a5b6a;
  line-height: 1.7;
  max-width: 720px;
  margin-bottom: 20px;
}

/* ---- 内页正文宽度保障 ---- */

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

.layout-shell > .site-main,
.layout-shell > .main-content,
.layout-shell > .page-content,
.layout-shell > .content-area,
.page-layout > .page-content,
.page-layout > .content-area,
.page-layout > .main-content,
body.sidebar-left > .site-main,
body.sidebar-left > .main-content,
body.sidebar-left > .page-content,
body.sidebar-left > .content-area {
  min-width: 0;
}

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

@media (max-width: 1024px) {

  .footer-links {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }

  .layout-shell,
  .layout-shell.sidebar-left,
  .page-layout.sidebar-left,
  body.sidebar-left {
    grid-template-columns: 180px 1fr;
    gap: 28px;
  }

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

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

}

@media (max-width: 768px) {

  /* 页头 */

  .header-inner {
    height: auto;
    min-height: 60px;
    padding: 10px 16px;
    flex-wrap: wrap;
    gap: 10px;
  }

  .brand-tagline {
    display: none;
  }

  .nav-toggle {
    display: flex;
    order: 3;
    margin-left: auto;
  }

  .site-nav {
    order: 4;
    width: 100%;
    margin-left: 0;
    display: block;
  }

  .nav-list {
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 10px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.12);
  }

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

  .nav-item {
    margin: 0;
  }

  .nav-link {
    padding: 12px 14px;
    font-size: 0.95rem;
    border-radius: 4px;
  }

  .header-action {
    order: 2;
    padding: 8px 16px;
    font-size: 0.88rem;
  }

  /* 主容器 */

  .site-main.inner-main {
    padding: 16px 16px 40px;
  }

  .home-main {
    padding: 0 16px 40px;
  }

  /* 侧栏布局：手机端侧栏移到底部 */

  .layout-shell,
  .layout-shell.sidebar-left,
  .page-layout.sidebar-left,
  body.sidebar-left {
    display: flex;
    flex-direction: column;
    gap: 0;
    padding: 0;
  }

  .layout-shell > .page-toc,
  .layout-shell > .sidebar,
  .layout-shell > .aside-toc,
  .layout-shell > .page-sidebar,
  .page-layout > .page-toc,
  .page-layout > .sidebar,
  .page-layout > .page-sidebar,
  body.sidebar-left > .page-toc,
  body.sidebar-left > .sidebar,
  body.sidebar-left > .aside-toc,
  body.sidebar-left > .page-sidebar {
    order: 10;
    position: static;
    width: 100%;
    margin-bottom: 24px;
  }

  .layout-shell > .site-main,
  .layout-shell > .main-content,
  .layout-shell > .page-content,
  .layout-shell > .content-area,
  .page-layout > .page-content,
  .page-layout > .content-area,
  .page-layout > .main-content,
  body.sidebar-left > .site-main,
  body.sidebar-left > .main-content,
  body.sidebar-left > .page-content,
  body.sidebar-left > .content-area {
    order: 1;
    width: 100%;
  }

  /* 侧栏内部 */

  .toc-sticky,
  .sidebar-inner {
    position: static;
  }

  .toc-list,
  .sidebar-links,
  .sidebar-list,
  .sidebar-nav ul {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
  }

  .toc-item,
  .sidebar-links li,
  .sidebar-list li,
  .sidebar-nav li {
    margin: 0;
  }

  .toc-item a,
  .sidebar-links a,
  .sidebar-list a,
  .sidebar-nav a {
    padding: 8px 12px;
    border: 1px solid #d8dfe5;
    border-radius: 4px;
    font-size: 0.85rem;
  }

  /* 面包屑 */

  .breadcrumb {
    font-size: 0.82rem;
    margin-bottom: 14px;
  }

  /* 页面标题 */

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

  .page-title {
    font-size: 1.5rem;
  }

  .page-description {
    font-size: 0.92rem;
  }

  /* 首页 */

  .hero-section {
    grid-template-columns: 1fr;
    gap: 24px;
    padding: 24px 0 32px;
  }

  .hero-content h1 {
    font-size: 1.7rem;
  }

  .hero-content {
    order: 1;
  }

  .hero-figure {
    order: 0;
  }

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

  .content-media-primary {
    order: 2;
  }

  .dual-columns,
  .task-cards {
    grid-template-columns: 1fr;
    gap: 16px;
  }

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

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

  .pre-footer-guide {
    flex-direction: column;
    align-items: flex-start;
    padding: 24px 20px;
  }

  .guide-links {
    width: 100%;
  }

  .guide-link {
    flex: 1 1 auto;
    text-align: center;
  }

  /* 内页多栏 */

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

  .source-cards,
  .level-cards,
  .standard-list,
  .overview-list,
  .scope-grid {
    grid-template-columns: 1fr;
    gap: 14px;
  }

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

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

  .review-grid,
  .guide-cards {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  /* 流程页 */

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

  .process-step .step-head {
    margin-bottom: 16px;
  }

  .process-step .step-title {
    font-size: 1.3rem;
  }

  /* 表格横向滚动 */

  .node-table-wrap {
    overflow-x: auto;
  }

  /* 页脚 */

  .footer-inner {
    padding: 32px 16px 20px;
  }

  .footer-links {
    grid-template-columns: 1fr 1fr;
    gap: 20px;
  }

  .footer-group-title {
    font-size: 0.9rem;
  }

  /* 404 */

  .error-main {
    padding: 40px 16px;
  }

  .error-content {
    padding: 32px 24px;
  }

  .error-code {
    font-size: 2.5rem;
  }

}

@media (max-width: 480px) {

  .param-grid,
  .object-groups {
    grid-template-columns: 1fr;
  }

  .footer-links {
    grid-template-columns: 1fr;
    gap: 18px;
  }

  .header-inner {
    padding: 8px 12px;
  }

  .brand-name {
    font-size: 1.1rem;
  }

  .header-action {
    padding: 8px 12px;
    font-size: 0.82rem;
  }

  .prep-list {
    margin-bottom: 18px;
  }

  .prep-item {
    padding: 12px 0;
  }

  .daily-overview {
    padding: 20px 16px;
  }

  .dual-card,
  .task-card {
    padding: 20px 16px;
  }

  .error-actions {
    flex-direction: column;
  }

  .error-link {
    width: 100%;
    text-align: center;
  }

}

/* 键盘焦点可见性 */

a:focus-visible,
button:focus-visible,
summary:focus-visible,
[tabindex]:focus-visible {
  outline: 2px solid #2bb3a3;
  outline-offset: 2px;
}

/* 滚动出现动画（不影响初始可见性） */

@media (prefers-reduced-motion: no-preference) {

  .dual-card,
  .task-card,
  .boundary-card,
  .source-card,
  .level-card,
  .standard-item,
  .object-group,
  .principle-item,
  .scope-card,
  .review-card,
  .guide-card,
  .process-step,
  .overview-item {
    transition: transform 0.25s ease, box-shadow 0.25s ease;
  }

  .dual-card:hover,
  .task-card:hover,
  .boundary-card:hover,
  .source-card:hover,
  .level-card:hover,
  .standard-item:hover,
  .object-group:hover,
  .principle-item:hover,
  .scope-card:hover,
  .review-card:hover,
  .guide-card:hover,
  .process-step:hover,
  .overview-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(36, 49, 63, 0.06);
  }

}

/* 程序验收反馈：移动端正文优先 */
@media (max-width: 768px) {
  .site-main :is(.page-content, .main-content, .content-main) {
    order: 1;
  }

  .site-main :is(aside, .sidebar) {
    order: 2;
  }
}