body {
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #f7f7f7;
  color: #111;
}

.container {
  max-width: 760px;
  margin: 0 auto;
  padding: 48px 24px;
}

.site-header {
  margin-bottom: 40px;
}

.site-header h1 {
  margin: 0 0 8px;
  font-size: 40px;
}

.site-header p {
  margin: 0;
  color: #555;
}

.post-list {
  display: grid;
  gap: 16px;
}

.post-card {
  display: block;
  padding: 20px;
  background: white;
  border: 1px solid #ddd;
  border-radius: 12px;
  text-decoration: none;
  color: inherit;
}

.post-card:hover {
  border-color: #111;
}

.post-card h3 {
  margin: 0 0 8px;
}

.post-card p {
  margin: 0;
  color: #555;
}

.nav {
  margin-bottom: 32px;
}

.nav a {
  color: #333;
  text-decoration: none;
}

.article {
  background: white;
  padding: 32px;
  border: 1px solid #ddd;
  border-radius: 12px;
}

.article h1 {
  margin-top: 0;
}

.description {
  color: #555;
  border-bottom: 1px solid #eee;
  padding-bottom: 20px;
  margin-bottom: 24px;
}

.content p {
  line-height: 1.8;
}

.player {
  position: fixed;
  left: 40px;
  bottom: 20px;
  width: 18px;
  height: 36px;
  z-index: 20;
  transform: translate(0px, 0px);
  transition: transform 0.04s linear;
  pointer-events: none;
}

.player-head {
  width: 11px;
  height: 11px;
  margin: 0 auto;
  border-radius: 50%;
  background: #111;
  border: 2px solid #111;
}

.player-body {
  width: 15px;
  height: 15px;
  margin: 2px auto 0;
  background: #111;
  border-radius: 4px;
}

.player-shadow {
  position: fixed;
  left: 40px;
  bottom: 19px;
  width: 16px;
  height: 4px;
  background: rgba(0, 0, 0, 0.18);
  border-radius: 50%;
  z-index: 19;
  pointer-events: none;
}