:root {
  --bg: #f6f8fb;
  --text: #0f172a;
  --muted: #64748b;
  --card: #ffffff;
  --line: #dbe4f0;
  --accent: #0f766e;
  --accent-2: #0ea5e9;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial;
  background: linear-gradient(180deg, #f8fbff 0%, var(--bg) 100%);
  color: var(--text);
}
a { color: var(--accent-2); text-decoration: none; }
.container { max-width: 1200px; margin: 0 auto; padding: 24px; }
.site-header {
  background: #ffffff;
  border-bottom: 1px solid var(--line);
  box-shadow: 0 2px 10px rgba(15, 23, 42, 0.04);
}
.site-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--text);
}
.brand-logo {
  width: 56px;
  height: 56px;
  object-fit: cover;
  border-radius: 12px;
  border: 1px solid var(--line);
}
.brand-text { display: flex; flex-direction: column; line-height: 1.2; }
.brand-title { font-size: 18px; font-weight: 700; color: var(--text); }
.brand-subtitle { font-size: 12px; color: var(--muted); }
.site-nav {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}
.site-nav a {
  color: var(--accent);
  font-weight: 600;
  padding: 6px 10px;
  border-radius: 999px;
  transition: background-color 0.2s ease, color 0.2s ease;
}
.site-nav a:hover { background: #e6f7f5; }
.site-nav a.active {
  background: #dff5f3;
  color: #0d615a;
}
.page-head { margin-bottom: 20px; }
.page-head h1 { margin: 0; font-size: 30px; }
.subtitle { color: var(--muted); margin-top: 6px; }
.grid { display: grid; gap: 16px; }
.grid.cols-3 { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 16px;
}
.card h2, .card h3 { margin-top: 0; }
.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 12px;
  border: 1px solid var(--line);
  background: #eff6ff;
}
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { border-bottom: 1px solid var(--line); text-align: left; padding: 8px; }
th { color: var(--muted); font-weight: 600; }
.kpi { font-size: 26px; font-weight: 700; }
.keyword-title { font-size: 28px; margin: 0 0 8px; }
.small { color: var(--muted); font-size: 13px; }
.new-mark {
  color: #dc2626;
  font-weight: 700;
}
.trend-chip {
  display: inline;
  font-size: 15px;
  line-height: 1;
  font-weight: 600;
  padding: 0;
}
.trend-up {
  color: #15803d;
}
.trend-down {
  color: #dc2626;
}
.trend-flat {
  color: #64748b;
}
.site-footer {
  margin-top: 26px;
  background: #ffffff;
  border-top: 1px solid var(--line);
}
.site-footer .container { padding-top: 18px; padding-bottom: 22px; }
.site-footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 16px;
}
.site-footer-links a { color: var(--accent); font-weight: 600; }
.site-footer-meta {
  margin-top: 10px;
  color: var(--muted);
  font-size: 13px;
}
.site-footer-meta p { margin: 6px 0; }
@media (max-width: 840px) {
  .site-header-inner { flex-direction: column; align-items: flex-start; }
  .brand-logo { width: 48px; height: 48px; }
  .brand-title { font-size: 16px; }
  .container { padding: 16px; }
  .page-head h1 { font-size: 26px; }
}