* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: "Hiragino Sans", "Meiryo", sans-serif;
  background: #ddddd4; color: #333; font-size: 14px;
}
.site-header { background: #00732e; color: #fff; padding: 16px; text-align: center; }
.site-header h1 { font-size: 1.3rem; }
.site-header h1 a { color: inherit; text-decoration: none; }
.site-header p { font-size: 0.85rem; opacity: 0.8; margin-top: 4px; }
.container { max-width: 800px; margin: 0 auto; padding: 12px; }
.updated { font-size: 0.76rem; color: #aaa; text-align: right; padding: 4px 0 6px; }
.thread-list { list-style: none; }
.thread-item { background: #fff; border: 1px solid #b0b0a0; margin-bottom: 8px; }
.thread-item > a {
  display: flex; flex-direction: column; align-items: flex-start;
  padding: 20px 22px; text-decoration: none; color: #333;
}
.thread-item a:hover { background: #f0fff5; }
.thread-title { width: 100%; font-size: 1.1rem; line-height: 1.9; }
.thread-date { color: #888; font-size: 0.72rem; align-self: flex-end; margin-top: 4px; white-space: nowrap; }
.no-articles { padding: 24px; text-align: center; color: #888; }
.site-footer { text-align: center; padding: 20px; color: #888; font-size: 0.78rem; }