/* 商务洞察风格 - Radar Insight */

:root {
  /* 配色方案 - 深蓝商务色系 */
  --md-primary-fg-color: #1a237e;
  --md-primary-fg-color--light: #283593;
  --md-primary-fg-color--dark: #0d1642;
  --md-accent-fg-color: #448aff;
  --md-typeset-color: #263238;
}

/* 字体和排版 */
.md-typeset {
  font-size: 0.82rem;
  line-height: 1.8;
  color: #263238;
}

.md-typeset h1 {
  font-weight: 700;
  color: #1a237e;
  border-bottom: 3px solid #1a237e;
  padding-bottom: 0.4em;
  margin-bottom: 1em;
}

.md-typeset h2 {
  font-weight: 600;
  color: #283593;
  border-bottom: 1px solid #e0e0e0;
  padding-bottom: 0.3em;
}

.md-typeset h3 {
  font-weight: 600;
  color: #37474f;
}

/* 引用块 - 洞察高亮 */
.md-typeset blockquote {
  border-left: 4px solid #1a237e;
  background: #e8eaf6;
  padding: 1em 1.5em;
  border-radius: 0 4px 4px 0;
  color: #1a237e;
  font-style: normal;
}

/* 表格 - 商务风格 */
.md-typeset table:not([class]) {
  border: 1px solid #cfd8dc;
  border-radius: 4px;
  overflow: hidden;
}

.md-typeset table:not([class]) th {
  background: #1a237e;
  color: white;
  font-weight: 600;
  padding: 0.8em 1em;
}

.md-typeset table:not([class]) td {
  padding: 0.8em 1em;
  border-bottom: 1px solid #eceff1;
}

.md-typeset table:not([class]) tr:hover td {
  background: #f5f5f5;
}

/* 侧边栏样式 */
.md-sidebar--primary .md-nav__title {
  font-weight: 700;
  color: #1a237e;
}

/* 侧边栏分类分隔 - 增强分界感 */
.md-nav--primary > .md-nav__list > .md-nav__item > .md-nav > .md-nav__list > .md-nav__item--nested {
  border-top: 2px solid #c5cae9;
  margin-top: 0.6em;
  padding-top: 0.6em;
}

.md-nav--primary > .md-nav__list > .md-nav__item > .md-nav > .md-nav__list > .md-nav__item--nested:first-child {
  border-top: none;
  margin-top: 0;
  padding-top: 0;
}

/* 分类标题（历史时期/能力模型/关键发现）加粗加色 */
.md-nav__item--nested > .md-nav__link,
.md-nav__item--section > .md-nav__link {
  font-weight: 700 !important;
  color: #1a237e !important;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.02em;
}

/* 搜索框 */
.md-search__input {
  border-radius: 4px;
}

/* 首页卡片样式 */
.home-hero {
  text-align: center;
  padding: 4rem 2rem;
  background: linear-gradient(135deg, #1a237e 0%, #283593 50%, #3949ab 100%);
  color: white;
  border-radius: 8px;
  margin-bottom: 3rem;
}

.home-hero h1 {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: white;
  border: none;
}

.home-hero p {
  font-size: 1.2rem;
  opacity: 0.9;
}

.project-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 2rem;
  padding: 1rem 0;
}

.project-card {
  background: white;
  border: 1px solid #e0e0e0;
  border-radius: 8px;
  padding: 2rem;
  transition: all 0.3s ease;
  text-decoration: none;
  color: inherit;
  display: block;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}

.project-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(26, 35, 126, 0.15);
  border-color: #1a237e;
}

.project-card h2 {
  color: #1a237e;
  margin-top: 0;
  border: none;
  font-size: 1.4rem;
}

.project-card p {
  color: #546e7a;
  line-height: 1.6;
}

.project-card .card-tag {
  display: inline-block;
  background: #e8eaf6;
  color: #1a237e;
  padding: 0.2em 0.8em;
  border-radius: 12px;
  font-size: 0.8rem;
  font-weight: 500;
  margin-top: 1em;
}