:root {
  --color-bg: #f4f5f7;
  --color-header: #1b1f3b;
  --color-accent: #ff6b35;
  --color-text: #23262f;
  --color-muted: #6b7078;
  --color-border: #e2e4e9;
}
* { box-sizing: border-box; }
html, body {
  margin: 0;
  padding: 0;
  font-family: "Hiragino Sans", "Yu Gothic", "Noto Sans JP", "Helvetica Neue", Arial, sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
}
.sp-header { background: var(--color-header); padding: 14px 16px; }
.sp-header a { color: #fff; text-decoration: none; font-size: 14px; font-weight: 700; }
.sp-main { max-width: 760px; margin: 0 auto; padding: 20px 16px 48px; background: #fff; min-height: 70vh; line-height: 1.8; }
.sp-crumb { font-size: 12px; color: var(--color-muted); margin-bottom: 8px; }
.sp-crumb a { color: var(--color-muted); }
h1 { font-size: 20px; margin: 4px 0 8px; line-height: 1.5; }
h2 {
  font-size: 15px;
  border-left: 4px solid var(--color-accent);
  padding-left: 10px;
  margin: 28px 0 10px;
}
.sp-sub { font-size: 13px; color: var(--color-muted); margin: 0 0 12px; }
.sp-actions { display: flex; flex-wrap: wrap; gap: 8px; margin: 12px 0 4px; }
.sp-btn {
  display: inline-block;
  padding: 7px 14px;
  border-radius: 999px;
  border: 1px solid var(--color-border);
  background: #fff;
  color: var(--color-header);
  font-size: 13px;
  font-weight: 700;
  text-decoration: none;
}
.sp-btn:first-child { background: var(--color-accent); border-color: var(--color-accent); color: #fff; }
.sp-btn.sp-x { background: #111; border-color: #111; color: #fff; }
.sp-list, .sp-links { list-style: none; margin: 0; padding: 0; }
.sp-list li { padding: 8px 0; border-bottom: 1px solid var(--color-border); font-size: 14px; }
.sp-list li.past { opacity: 0.55; }
.sp-list time {
  display: inline-block;
  min-width: 128px;
  margin-right: 6px;
  font-size: 12px;
  font-weight: 700;
  color: var(--color-header);
}
.sp-links li { display: inline-block; margin: 0 14px 6px 0; font-size: 14px; }
.sp-count { font-size: 11px; color: var(--color-muted); }
.sp-map { font-size: 12px; margin-left: 6px; }
.sp-empty { font-size: 13px; color: var(--color-muted); }
a { color: #c2410c; }
.sp-footer { max-width: 760px; margin: 0 auto; padding: 16px; font-size: 11.5px; color: var(--color-muted); line-height: 1.7; }
.sp-footer a { color: var(--color-muted); }