:root {
  --cdp-primary: #1d4e89;    /* 深政务蓝 */
  --cdp-secondary: #f0f4f8;  /* 浅蓝灰背景 */
  --cdp-accent: #c8102e;     /* 庄严红 */
  --cdp-text: #333333;
  --cdp-header-height: 80px;
}

body {
  font-family: "PingFang SC", "Microsoft YaHei", "Arial", sans-serif;
  color: var(--cdp-text);
  background-color: var(--cdp-secondary);
  margin-bottom: 60px;
}

/* Header & Nav */
.navbar {
  background-color: var(--cdp-primary) !important;
  height: var(--cdp-header-height);
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
  padding: 0 1rem;
}
.navbar-brand {
  font-weight: 700;
  font-size: 1.5rem;
  color: #fff !important;
  letter-spacing: 1px;
}
.nav-link {
  color: rgba(255,255,255,0.9) !important;
  font-weight: 500;
}
.nav-link:hover {
  color: #fff !important;
  text-decoration: underline;
}

/* Banner */
.cdp-banner {
  width: 100%;
  height: 350px;
  background-size: cover;
  background-position: center;
  position: relative;
  margin-bottom: 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
}
.cdp-banner::after {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: linear-gradient(rgba(0,0,0,0.4), rgba(0,0,0,0.4));
}
.cdp-banner-text {
  position: relative;
  z-index: 10;
  color: #fff;
  text-align: center;
  text-shadow: 0 2px 10px rgba(0,0,0,0.5);
}

/* Cards & Lists */
.card {
  border: none;
  border-radius: 8px;
  transition: transform 0.2s, box-shadow 0.2s;
  overflow: hidden;
}
.card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 20px rgba(0,0,0,0.1);
}
.card-title {
  color: var(--cdp-primary);
  font-weight: 600;
}
.article-meta {
  font-size: 0.85rem;
  color: #666;
}

/* Footer */
footer {
  background-color: #fff;
  border-top: 3px solid var(--cdp-primary);
  padding: 2rem 0;
  margin-top: 3rem;
}

/* Utils */
.text-accent { color: var(--cdp-accent); }
.bg-primary-cdp { background-color: var(--cdp-primary) !important; }

@media (max-width: 768px) {
  .cdp-banner { height: 200px; }
  .navbar { height: auto; }
}
/* Custom Utils */
.opacity-75 { opacity: 0.75; }
.hover-opacity-100 { transition: opacity 0.2s; }
.hover-opacity-100:hover { opacity: 1 !important; }