:root {
  /* Updated color palette to better match the deep blue logo. */
  --bg: #0B1F38;      /* page background */
  --card: #0F2A4B;    /* cards and panels */
  --text: #EAF4FF;    /* primary text */
  --muted: #A0B2D1;   /* secondary text */
  --accent: #3178C6;  /* links and buttons */
  --border: #1D3F72;  /* borders and outlines */
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; background: var(--bg); color: var(--text); font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, 'Helvetica Neue', Arial, 'Noto Sans', 'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol', sans-serif; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
.container { max-width: 1100px; margin: 0 auto; padding: 1.25rem; }
.header { display: flex; align-items: center; justify-content: space-between; padding: 1rem 0; }
.logo {
  height: 40px;
  width: auto;
  margin-right: 0.5rem;
  vertical-align: middle;
}
.brand { font-weight: 700; font-size: 1.1rem; letter-spacing: 0.3px; }
.nav a { margin-left: 1rem; color: var(--muted); }
.nav a.active, .nav a:hover { color: var(--text); }
.hero { padding: 2rem 0 1rem; }
h1,h2,h3 { line-height: 1.2; }
h1 { font-size: 2rem; margin: 0.2rem 0 0.6rem; }
.sub { color: var(--muted); font-size: 1rem; }
.card { background: var(--card); border: 1px solid var(--border); border-radius: 16px; padding: 1rem; }
.grid { display: grid; grid-template-columns: repeat(12, 1fr); gap: 1rem; }
.latest { grid-column: 1 / -1; display: grid; grid-template-columns: 1fr; gap: 1rem; }
.latest img { width: 100%; height: auto; border-radius: 12px; border: 1px solid var(--border); }
.meta { color: var(--muted); font-size: 0.9rem; margin-top: 0.3rem; }
.footer { color: var(--muted); font-size: 0.9rem; padding: 2rem 0; }
.btn { display: inline-block; padding: 0.6rem 0.9rem; border: 1px solid var(--border); border-radius: 10px; }
.list { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 1rem; }
.post-card { background: var(--card); border: 1px solid var(--border); border-radius: 14px; overflow: hidden; display: flex; flex-direction: column; }
.post-card img { width: 100%; height: 180px; object-fit: cover; border-bottom: 1px solid var(--border); }
.post-card .pc-body { padding: 0.9rem; }
.post-card h3 { margin: 0.2rem 0 0.4rem; font-size: 1.1rem; }
article { max-width: 760px; margin: 0 auto; }
article h1 { font-size: 2.1rem; }
article p { line-height: 1.65; font-size: 1.02rem; color: #e9efff; }
.callout { background: #0f1a30; border: 1px solid var(--border); padding: 0.9rem; border-radius: 10px; color: var(--muted); }
hr { border: 0; border-top: 1px solid var(--border); margin: 1.5rem 0; }
@media (min-width: 800px) {
  .latest { grid-template-columns: 5fr 7fr; }
}