/* admin.css —— 克制、安静；小字号、淡色辅助说明。 */
* { box-sizing: border-box; }
body { margin: 0; font-family: -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif; color: #222; background: #fafafa; }
main { max-width: 640px; margin: 0 auto; padding: 20px 16px 48px; }
h1 { font-size: 20px; margin: 4px 0 6px; }
h2 { font-size: 15px; margin: 0 0 12px; }
.muted { color: #888; font-size: 13px; }
.card { background: #fff; border: 1px solid #e5e5e5; border-radius: 8px; padding: 16px; margin-top: 12px; }
label { display: block; font-size: 14px; margin-top: 12px; }
label:first-child { margin-top: 0; }
.label { display: block; font-size: 14px; margin-top: 12px; }
input[type="date"], input[type="text"], input[type="password"], input[type="number"], input[type="email"] { display: block; width: 100%; margin-top: 6px; padding: 9px 10px; font-size: 15px; border: 1px solid #ccc; border-radius: 6px; }
.check { display: flex; align-items: center; gap: 8px; }
.check input { width: auto; }
#scores { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 6px; }
.score { min-width: 40px; padding: 8px 0; font-size: 15px; border: 1px solid #ccc; background: #fff; border-radius: 6px; cursor: pointer; }
.score.on { background: #222; color: #fff; border-color: #222; }
button { padding: 9px 16px; font-size: 14px; border: 1px solid #ccc; background: #fff; border-radius: 6px; cursor: pointer; margin-top: 14px; }
button[type="submit"] { background: #222; color: #fff; border-color: #222; }
.msg { color: #888; font-size: 13px; min-height: 18px; margin: 10px 0 0; }
details { margin-top: 14px; font-size: 13px; color: #888; }
details ul { margin: 8px 0 0; padding-left: 18px; }
.row { border-top: 1px solid #eee; padding: 12px 0 4px; }
.row:first-child { border-top: none; padding-top: 0; }
.temp { font-weight: bold; margin-left: 6px; }
.note { font-size: 14px; color: #555; margin-top: 4px; }
.row-btns button { padding: 5px 10px; font-size: 13px; margin: 8px 6px 0 0; }
.file-btn { display: inline-block; padding: 9px 16px; font-size: 14px; border: 1px solid #ccc; background: #fff; border-radius: 6px; cursor: pointer; margin: 14px 0 0 8px; }
.mini-btn { padding: 2px 8px; font-size: 12px; margin: 0 0 0 4px; }
.nav { margin: 0 0 8px; font-size: 14px; }
.nav a { color: #555; }
.admin-nav { display: flex; gap: 14px; flex-wrap: wrap; font-size: 14px; margin-bottom: 12px; }
.admin-nav a { color: #888; text-decoration: none; }
.admin-nav a.on { color: #222; font-weight: bold; }
.grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; }
.mean-box { border: 1px solid #eee; border-radius: 6px; padding: 10px 6px; text-align: center; }
.mean-label { font-size: 12px; color: #888; }
.mean-value { font-size: 18px; font-weight: bold; margin: 4px 0; }
.bar-row { display: flex; align-items: center; gap: 8px; margin-top: 5px; font-size: 13px; }
.bar-label { width: 28px; text-align: right; flex-shrink: 0; }
.bar-track { flex: 1; height: 10px; background: #f0f0f0; border-radius: 5px; overflow: hidden; }
.bar-fill { display: block; height: 100%; background: #555; }
.bar-count { width: 24px; color: #888; }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { text-align: left; padding: 6px 4px; border-bottom: 1px solid #eee; }
th { color: #888; font-weight: normal; font-size: 13px; }
.footnote { margin-top: 16px; line-height: 1.6; }