/* ============================================
   Contextum — 现代财经资讯门户 共享样式系统
   配色: #303030 #8d99ae #edf2f4 #ef233c #d80032
   字体: Inter / Noto Sans SC
   ============================================ */

/* --- 字体引入 --- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800;900&family=Noto+Sans+SC:wght@400;500;600;700&display=swap');

/* --- CSS 变量 --- */
:root {
  --color-primary: #303030;
  --color-secondary: #8d99ae;
  --color-bg: #edf2f4;
  --color-accent: #ef233c;
  --color-warning: #d80032;
  --color-card: #ffffff;
  --color-text: #303030;
  --color-text-secondary: #8d99ae;
  --color-border: rgba(141,153,174,0.25);
  --color-nav-text: rgba(237,242,244,0.65);
  --color-nav-text-hover: rgba(237,242,244,0.9);

  --font-family: 'Inter', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', 'Fira Code', monospace;

  --nav-height: 60px;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 12px;
  --shadow-sm: 0 1px 3px rgba(43,45,66,0.06);
  --shadow-md: 0 2px 8px rgba(43,45,66,0.08);
  --shadow-lg: 0 4px 16px rgba(43,45,66,0.12);
  --transition: 0.2s ease;
}

/* --- Reset --- */
*, *::before, *::after {
  margin: 0; padding: 0; box-sizing: border-box;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-family);
  background: var(--color-bg);
  color: var(--color-text);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  line-height: 1.6;
}

/* 微观点阵背景 */
body::before {
  content: '';
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  pointer-events: none;
  z-index: -1;
  background-image: radial-gradient(circle, rgba(141,153,174,0.08) 1px, transparent 1px);
  background-size: 24px 24px;
}

a { color: var(--color-accent); text-decoration: none; }
a:hover { opacity: 0.8; }

/* ===== 导航栏 ===== */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-height);
  background: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 40px;
  box-shadow: 0 2px 12px rgba(48,48,48,0.15);
  z-index: 1000;
  transition: box-shadow var(--transition);
}

.navbar.scrolled {
  box-shadow: 0 4px 20px rgba(48,48,48,0.25);
}

.navbar-logo {
  position: absolute;
  left: 40px;
  display: flex;
  align-items: center;
  gap: 10px;
  color: #ffffff;
  font-family: 'Inter', sans-serif;
  font-style: italic;
  font-weight: 900;
  font-size: 22px;
  letter-spacing: -0.8px;
  text-transform: uppercase;
  user-select: none;
  text-decoration: none;
}

.navbar-logo svg {
  flex-shrink: 0;
}

.navbar-center {
  display: flex;
  align-items: center;
  gap: 32px;
}

.navbar-link {
  font-size: 15px;
  font-weight: 500;
  font-style: italic;
  color: var(--color-nav-text);
  padding: 26px 0 12px 0;
  position: relative;
  transition: color var(--transition);
  cursor: pointer;
  text-decoration: none;
}

.navbar-link:hover { color: var(--color-nav-text-hover); }
.navbar-link.active { color: #ffffff; }

  .navbar-link.active::after {
  content: '';
  position: absolute;
  bottom: 8px;
  left: 50%;
  transform: translateX(-50%);
  width: 20px;
  height: 3px;
  background: var(--color-accent);
  border-radius: 2px;
}

/* ===== 内容区域 ===== */
.content-wrapper {
  margin-top: var(--nav-height);
  padding: 32px 40px;
  max-width: 1400px;
  margin-left: auto;
  margin-right: auto;
}

/* ===== 页面标题 ===== */
.page-title {
  font-size: 14px;
  font-weight: 600;
  font-style: italic;
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  margin-bottom: 20px;
}

/* ===== 卡片通用 ===== */
.card {
  background: var(--color-card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

/* ===== 分类筛选标签 ===== */
.filter-bar {
  display: flex;
  gap: 8px;
  margin-bottom: 28px;
  flex-wrap: wrap;
}

.filter-tag {
  font-family: inherit;
  font-size: 13px;
  font-weight: 500;
  padding: 6px 16px;
  border-radius: 20px;
  border: 1px solid var(--color-border);
  background: transparent;
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: all var(--transition);
  user-select: none;
}

.filter-tag:hover {
  border-color: var(--color-text);
  color: var(--color-text);
}

.filter-tag.active {
  background: var(--color-text);
  border-color: var(--color-text);
  color: #ffffff;
}

/* ===== 事件卡片网格 ===== */
.event-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

@media (min-width: 768px) {
  .event-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1200px) {
  .event-grid { grid-template-columns: repeat(3, 1fr); }
}

/* ===== 事件卡片 ===== */
.event-card {
  background: var(--color-card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  padding: 24px;
  transition: transform var(--transition), box-shadow var(--transition);
  cursor: pointer;
  text-decoration: none;
  display: block;
  color: inherit;
  border: none;
}

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

.event-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 12px;
}

.event-card-title {
  font-size: 17px;
  font-weight: 600;
  color: var(--color-text);
  flex: 1;
  line-height: 1.4;
}

.category-badge {
  display: inline-block;
  padding: 2px 10px;
  font-size: 11px;
  font-weight: 500;
  border-radius: 4px;
  white-space: nowrap;
  flex-shrink: 0;
}

.cat-军事冲突 { background: rgba(239,35,60,0.08); color: #d80032; }
.cat-大国博弈 { background: rgba(43,45,66,0.08); color: var(--color-text); }
.cat-经济金融 { background: rgba(141,153,174,0.15); color: var(--color-text); }
.cat-产业科技 { background: rgba(43,45,66,0.06); color: var(--color-text); }
.cat-政治内政 { background: rgba(141,153,174,0.1); color: var(--color-text); }
.cat-自然灾害 { background: rgba(239,35,60,0.06); color: #d80032; }
.cat-地缘冲突 { background: rgba(239,35,60,0.08); color: #d80032; }
.cat-经济政策 { background: rgba(141,153,174,0.15); color: var(--color-text); }
.cat-金融危机 { background: rgba(239,35,60,0.06); color: #d80032; }
.cat-科技变革 { background: rgba(43,45,66,0.06); color: var(--color-text); }
.cat-社会事件 { background: rgba(141,153,174,0.1); color: var(--color-text); }
.cat-未分类 { background: rgba(141,153,174,0.08); color: var(--color-text-secondary); }
.cat-default { background: rgba(141,153,174,0.08); color: var(--color-text-secondary); }

.event-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
  font-size: 12px;
  color: var(--color-text-secondary);
}

.stars {
  color: var(--color-accent);
  font-size: 14px;
}

.recent-news {
  list-style: none;
  border-top: 1px solid var(--color-border);
  padding-top: 10px;
}

.recent-news li {
  padding: 5px 0;
  font-size: 13px;
  color: rgba(48,48,48,0.65);
  border-bottom: 1px solid rgba(141,153,174,0.08);
  display: flex;
  align-items: flex-start;
  gap: 6px;
  line-height: 1.5;
}

.recent-news li:last-child { border-bottom: none; }

.recent-news li::before {
  content: '';
  width: 4px;
  height: 4px;
  background: var(--color-text-secondary);
  border-radius: 50%;
  margin-top: 8px;
  flex-shrink: 0;
}

.event-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 12px;
  padding-top: 10px;
  border-top: 1px solid var(--color-border);
  font-size: 12px;
  color: var(--color-text-secondary);
}

.expand-btn {
  display: block;
  width: 100%;
  margin-top: 14px;
  padding: 9px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  background: transparent;
  color: var(--color-accent);
  font-family: inherit;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
  text-align: center;
  text-decoration: none;
}

.expand-btn:hover {
  background: rgba(239,35,60,0.06);
  border-color: var(--color-accent);
}

/* ===== 空状态 ===== */
.empty-state {
  text-align: center;
  padding: 80px 20px;
  color: var(--color-text-secondary);
}

.empty-state .empty-text {
  font-size: 15px;
  letter-spacing: 2px;
}

/* ===== 休眠事件折叠 ===== */
.dormant-section {
  margin-top: 36px;
  border-top: 1px solid var(--color-border);
  padding-top: 24px;
}

.dormant-header {
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  padding: 12px 18px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  user-select: none;
  transition: border-color var(--transition);
}

.dormant-header:hover { border-color: var(--color-text-secondary); }

.dormant-header .arrow {
  font-size: 12px;
  color: var(--color-text-secondary);
  transition: transform 0.3s;
}

.dormant-header.open .arrow { transform: rotate(90deg); }

.dormant-header .dormant-title {
  font-size: 14px;
  color: var(--color-text);
  font-weight: 500;
}

.dormant-header .dormant-count {
  font-size: 13px;
  color: var(--color-text-secondary);
}

.dormant-body { display: none; margin-top: 16px; }
.dormant-body.open { display: grid; grid-template-columns: 1fr; gap: 16px; }

@media (min-width: 768px) {
  .dormant-body.open { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1200px) {
  .dormant-body.open { grid-template-columns: repeat(3, 1fr); }
}

.dormant-card {
  padding: 16px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  opacity: 0.7;
  transition: opacity var(--transition);
}

.dormant-card:hover { opacity: 1; }

.dormant-card .event-card-title { font-size: 15px; }

/* ===== 加载状态 ===== */
.loading {
  text-align: center;
  padding: 60px 20px;
  color: var(--color-text-secondary);
  font-size: 14px;
}

.loading-dots::after {
  content: '';
  animation: dots 1.5s infinite;
}

@keyframes dots {
  0% { content: ''; }
  33% { content: '.'; }
  66% { content: '..'; }
  100% { content: '...'; }
}

/* ===== 页脚 ===== */
.site-footer {
  text-align: center;
  padding: 24px 0 16px;
  font-size: 12px;
  color: var(--color-text-secondary);
  letter-spacing: 1px;
}

.site-footer a { color: var(--color-text-secondary); }
.site-footer a:hover { color: var(--color-text); }

/* ===== 滚动条 ===== */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--color-bg); }
::-webkit-scrollbar-thumb { background: var(--color-secondary); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--color-text); }

/* ===== 响应式 ===== */
@media (max-width: 768px) {
  .navbar { padding: 0 16px; }
  .navbar-center { gap: 16px; }
  .navbar-link { font-size: 13px; }
  .content-wrapper { padding: 20px 16px; }
  .event-grid { grid-template-columns: 1fr; }
  .dormant-body.open { grid-template-columns: 1fr; }
  .filter-bar { gap: 6px; }
  .filter-tag { font-size: 12px; padding: 5px 12px; }
}