:root {
  /* 使用更纯粹的黑白灰，增强严肃感 */
  --bg: #000000;
  --bg-soft: #0a0a0a;
  --panel: #050505;
  --line: rgba(255, 255, 255, 0.15);
  --line-strong: rgba(255, 255, 255, 0.4);
  --text: #ffffff;
  --text-muted: rgba(255, 255, 255, 0.7);
  --text-faint: rgba(255, 255, 255, 0.45);
  --success: #a3e6a1;
  --warning: #f5d76e;
  --danger: #f29c9c;
  /* 移除圆角，改为硬朗的直角或极小圆角 */
  --radius: 0px;
  --content-width: min(1200px, calc(100vw - 48px));
  /* 定义字体：正文无衬线，标题衬线 */
  --font-sans: "Helvetica Neue", "Arial", "PingFang SC", "Noto Sans SC", sans-serif;
  --font-serif: "Georgia", "Times New Roman", "Songti SC", serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  /* 移除所有扫描线、脉冲灯和渐变，改为纯黑底色 */
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  min-height: 100vh;
  line-height: 1.6;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input,
textarea,
select {
  font: inherit;
}

.page-shell {
  width: var(--content-width);
  margin: 0 auto;
  padding: 0 0 60px;
  position: relative;
  z-index: 1;
}

/* 顶部导航栏 - 政府级文档样式 */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 24px 0;
  border-bottom: 1px solid var(--line);
  margin-bottom: 40px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 16px;
  min-width: 0;
}

.brand-mark {
  width: 56px;
  height: 56px;
  object-fit: cover;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: #fff;
}

.brand-kicker,
.section-label,
.panel-label {
  margin: 0;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  font-size: 0.75rem;
  color: var(--text-faint);
  font-weight: 600;
}

.brand h1,
.section-header h3,
.admin-intro h2,
.hero-title {
  margin: 0;
  font-family: var(--font-serif);
  font-weight: 400;
  letter-spacing: 0.02em;
}

.brand h1 {
  font-size: 1.5rem;
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.topnav {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

/* 按钮与交互件 - 硬朗风格 */
.topnav a,
.ghost-link,
.lang-pill,
.button {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 10px 18px;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  transition: all 150ms ease;
  background: transparent;
  color: var(--text);
  cursor: pointer;
}

/* 移除原有活泼的弹跳效果，改为严肃的底色反转 */
.topnav a:hover,
.ghost-link:hover,
.button-secondary:hover,
.social-link:hover {
  background: var(--text);
  color: var(--bg);
  border-color: var(--text);
}

.lang-switch {
  display: inline-flex;
  gap: 0px;
}

.lang-pill {
  border-radius: 0;
}

.lang-pill:first-child {
  border-right: none;
}

.lang-pill.is-active {
  background: var(--text);
  color: var(--bg);
  font-weight: bold;
}

/* 核心网格与卡片 - 移除毛玻璃和阴影，保留绝对边框 */
.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(320px, 0.8fr);
  gap: 24px;
  align-items: stretch;
  padding: 0 0 60px;
}

.hero-copy,
.panel-frame,
.timeline-item,
.finance-panel,
.proposal-card,
.publication-card,
.empty-state,
.status-strip,
.admin-card,
.org-map,
.org-root,
.org-node {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  /* 移除了 backdrop-filter 和 box-shadow */
}

.hero-copy {
  padding: 60px 48px;
}

.hero-title {
  margin: 20px 0 24px;
  font-size: clamp(2.8rem, 7vw, 5rem);
  line-height: 1.05;
  max-width: 14ch;
}

.hero-subtitle,
.hero-promise,
.section-header p,
.timeline-copy,
.finance-copy,
.proposal-summary,
.publication-summary,
.site-footer,
.status-strip,
.admin-intro p,
.org-copy,
.org-lead {
  color: var(--text-muted);
  line-height: 1.6;
  font-size: 0.95rem;
}

.hero-promise {
  max-width: 54ch;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 40px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 28px;
  font-weight: 600;
}

.button-primary {
  background: var(--text);
  color: var(--bg);
  border-color: var(--text);
}

.button-primary:hover {
  background: var(--line-strong);
  color: var(--text);
}

.button-secondary {
  background: transparent;
  color: var(--text);
}

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

.panel-frame {
  padding: 48px 36px;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.metric-grid {
  display: grid;
  gap: 24px;
  margin: 32px 0 0;
}

.metric-item {
  padding-top: 16px;
  border-top: 1px solid var(--line-strong);
}

.metric-item dt {
  color: var(--text-faint);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: 0.75rem;
  margin-bottom: 8px;
}

.metric-item dd {
  margin: 0;
  font-size: 2.2rem;
  font-family: var(--font-serif);
  font-weight: 400;
}

.notice-strip {
  margin-bottom: 40px;
  padding: 16px 24px;
  border: 1px solid var(--warning);
  background: rgba(245, 215, 110, 0.05);
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  align-items: center;
}

.notice-label {
  color: var(--warning);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  font-size: 0.75rem;
  font-weight: bold;
}

/* 内容区域划分 */
.content-section {
  padding: 40px 0;
  border-top: 1px solid var(--line);
}

.section-header {
  display: grid;
  gap: 12px;
  margin-bottom: 32px;
}

.section-header h3 {
  font-size: clamp(2rem, 4vw, 2.5rem);
}

.proposal-grid,
.publication-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.proposal-card,
.publication-card {
  padding: 32px 24px;
  transition: border-color 200ms ease;
}

.proposal-card:hover,
.publication-card:hover {
  border-color: var(--line-strong);
}

.proposal-card h4,
.publication-card h4,
.timeline-title,
.org-root h4,
.org-node h4 {
  margin: 0 0 12px;
  font-size: 1.15rem;
  font-family: var(--font-serif);
  font-weight: normal;
}

.timeline-meta,
.proposal-meta,
.publication-meta,
.finance-meta {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  color: var(--text-faint);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 16px;
}

.timeline-list {
  display: grid;
  gap: 20px;
}

.timeline-item,
.finance-panel {
  padding: 32px;
}

/* 组织架构图 - 移除赛博朋克渐变，改为硬朗实线 */
.organization-shell {
  display: grid;
}

.org-map {
  padding: 48px;
  position: relative;
}

.org-root {
  max-width: 320px;
  margin: 0 auto;
  padding: 24px;
  text-align: center;
  position: relative;
  z-index: 1;
  border-color: var(--text);
}

.org-rail {
  width: 1px;
  height: 48px;
  margin: 0 auto;
  background: var(--line-strong);
}

.org-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
  position: relative;
}

.org-grid::before {
  content: "";
  position: absolute;
  top: -24px;
  left: 16.66%;
  right: 16.66%;
  height: 1px;
  background: var(--line-strong);
}

.org-node {
  padding: 24px;
  position: relative;
}

.org-node::before {
  content: "";
  position: absolute;
  top: -24px;
  left: 50%;
  width: 1px;
  height: 24px;
  background: var(--line-strong);
}

.org-link-label {
  color: var(--text-faint);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.org-lead {
  margin: 0 0 8px;
  font-weight: 600;
  color: var(--text);
}

.org-copy {
  margin: 0;
}

/* 财务数据表格 - 审计报告风格 */
.finance-headline {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
  align-items: flex-end;
  border-bottom: 1px solid var(--line-strong);
  padding-bottom: 16px;
  margin-bottom: 24px;
}

.finance-number-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
  margin: 32px 0;
}

.finance-number {
  padding: 24px;
  border: 1px solid var(--line);
  background: var(--bg-soft);
}

.finance-number strong {
  display: block;
  font-family: var(--font-serif);
  font-size: 2rem;
  margin-top: 12px;
  font-weight: 400;
}

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

.finance-table th,
.finance-table td {
  padding: 16px 12px;
  text-align: left;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}

.finance-table th {
  color: var(--text-faint);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  border-bottom: 1px solid var(--text);
}

.finance-disclaimer {
  margin-top: 24px;
  color: var(--text-faint);
  font-size: 0.85rem;
}

/* 标签 */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  border: 1px solid var(--line-strong);
  color: var(--text);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.empty-state {
  padding: 40px;
  text-align: center;
  border-style: dashed;
}

.empty-title {
  margin: 0 0 12px;
  font-family: var(--font-serif);
  font-size: 1.25rem;
}

.empty-copy {
  margin: 0;
  color: var(--text-faint);
}

/* 页脚 */
.site-footer {
  margin-top: 60px;
  padding: 40px 0 0;
  border-top: 4px solid var(--line);
}

.footer-brand {
  display: grid;
  grid-template-columns: minmax(260px, 0.9fr) minmax(260px, 0.9fr);
  gap: 0;
  align-items: stretch;
  border: 1px solid var(--line);
}

.footer-brand-tile,
.footer-brand-copy {
  min-height: 260px;
  background: var(--bg-soft);
}

.footer-brand-tile {
  display: grid;
  place-items: center;
  padding: 32px;
  border-right: 1px solid var(--line);
}

.footer-brand-image {
  width: min(100%, 240px);
  aspect-ratio: 1 / 1;
  object-fit: contain;
}

.footer-brand-copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 40px;
}

.footer-brand-copy p {
  margin: 0 0 12px;
}

.footer-socials,
.footer-badges {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 24px;
}

.social-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 16px;
  border: 1px solid var(--line);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  transition: all 150ms ease;
}

.social-icon {
  display: none;
  /* 移除多余的图标框，保持极简文字 */
}

/* 响应式适配 */
@media (max-width: 960px) {

  .hero-grid,
  .proposal-grid,
  .publication-grid,
  .finance-number-grid,
  .org-grid {
    grid-template-columns: 1fr;
  }

  .footer-brand {
    grid-template-columns: 1fr;
  }

  .footer-brand-tile {
    border-right: none;
    border-bottom: 1px solid var(--line);
  }

  .topbar {
    align-items: flex-start;
    flex-direction: column;
  }

  .topbar-actions {
    width: 100%;
    justify-content: flex-start;
  }

  .hero-copy,
  .org-map {
    padding: 32px 24px;
  }

  .org-grid::before,
  .org-node::before,
  .org-rail {
    display: none;
  }

  .org-node {
    border-top: 1px solid var(--line);
  }
}

@media (max-width: 640px) {
  :root {
    --content-width: min(100vw - 32px, 100%);
  }

  .topnav {
    gap: 8px;
  }

  .topnav a,
  .ghost-link,
  .lang-switch,
  .button {
    width: 100%;
    justify-content: center;
  }

  .lang-pill {
    flex: 1;
  }

  .hero-title {
    max-width: none;
  }
}