:root {
  --bg: #f7f7f7;
  --card: #ffffff;
  --text: #1a1a1a;
  --muted: #8c8c8c;
  --line: #ebebeb;
  --link: #576b95;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #111111;
    --card: #1c1c1e;
    --text: #ededed;
    --muted: #8e8e93;
    --line: #2c2c2e;
    --link: #7d90bb;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 17px/1.75 -apple-system, BlinkMacSystemFont, "PingFang SC",
        "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--link); text-decoration: none; }

.wrap { max-width: 680px; margin: 0 auto; padding: 20px 18px 64px; }

.back { font-size: 14px; margin: 0 0 20px; }

.post-title {
  font-size: 26px;
  line-height: 1.4;
  font-weight: 600;
  margin: 0 0 12px;
}

.post-meta { color: var(--muted); font-size: 14px; margin: 0 0 28px; }

.post-body { word-wrap: break-word; }
.post-body img { max-width: 100%; height: auto; display: block; margin: 12px auto; border-radius: 4px; }
.post-body p { margin: 0 0 18px; }

.post-footer {
  margin-top: 48px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
  font-size: 14px;
  color: var(--muted);
}

.profile { display: flex; align-items: center; gap: 14px; padding-top: 12px; }
.avatar { width: 56px; height: 56px; border-radius: 50%; display: block; }
.profile-name { font-size: 22px; font-weight: 600; margin: 0; }
.profile-region { color: var(--muted); font-size: 14px; margin: 2px 0 0; }
.profile-bio { margin: 18px 0 6px; font-size: 16px; }
.profile-stat { color: var(--muted); font-size: 14px; margin: 0 0 28px; }

.cards { display: flex; flex-direction: column; gap: 14px; }

.card {
  display: block;
  background: var(--card);
  border-radius: 10px;
  overflow: hidden;
  color: inherit;
  border: 1px solid var(--line);
}

.card-cover {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  display: block;
}

.card-text { padding: 14px 16px 16px; }
.card-title { font-size: 17px; font-weight: 500; line-height: 1.45; margin: 0; }
.card-date { color: var(--muted); font-size: 13px; margin: 8px 0 0; }