:root {
  --red: #b71c1c;
  --red2: #8e0000;
  --bg: #f4f4f4;
  --text: #222;
}
* { box-sizing: border-box; }
body { margin: 0; font: 14px/1.6 "Microsoft YaHei", "PingFang SC", sans-serif; background: var(--bg); color: var(--text); }
a { color: var(--red); text-decoration: none; }
a:hover { text-decoration: underline; }
.topbar { background: #333; color: #ddd; font-size: 12px; }
.topbar .wrap, header .wrap, .nav .wrap, main.wrap, footer .wrap { max-width: 1100px; margin: 0 auto; padding: 6px 12px; }
.topbar .wrap { display: flex; justify-content: space-between; gap: 12px; }
.topbar a { color: #ddd; margin-left: 10px; }
header { background: #fff; border-bottom: 3px solid var(--red); }
header .wrap { display: flex; align-items: center; gap: 20px; padding: 14px 12px; }
.logo { color: var(--red); font-size: 22px; font-weight: 700; line-height: 1.2; }
.logo small { display: block; font-size: 12px; color: #888; font-weight: 400; }
.search { flex: 1; display: flex; }
.search input { flex: 1; border: 2px solid var(--red); padding: 8px 10px; font-size: 14px; }
.search button { background: var(--red); color: #fff; border: 0; padding: 0 18px; cursor: pointer; }
.nav { background: var(--red); }
.nav .wrap { display: flex; flex-wrap: wrap; gap: 4px; padding: 0 8px; }
.nav a { color: #fff; padding: 10px 14px; display: inline-block; }
.nav a:hover, .nav a.on { background: var(--red2); text-decoration: none; }
main.wrap { padding: 16px 12px 40px; min-height: 60vh; }
.card { background: #fff; padding: 16px; margin-bottom: 14px; border: 1px solid #e5e5e5; }
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 12px; }
.item { background: #fff; border: 1px solid #e5e5e5; padding: 10px; }
.item img, .thumb { width: 100%; height: 150px; object-fit: cover; background: #eee; }
.muted { color: #888; font-size: 12px; }
.btn { display: inline-block; background: var(--red); color: #fff !important; padding: 8px 14px; border: 0; cursor: pointer; }
.btn.gray { background: #666; }
.btn.line { background: #fff; color: var(--red) !important; border: 1px solid var(--red); }
.err { color: #b71c1c; margin: 8px 0; }
.ok { color: #2e7d32; }
form p { margin: 8px 0; }
form label { display: block; margin-bottom: 4px; }
form input[type=text], form input[type=password], form input[type=email], form input[type=number], form textarea, form select {
  width: 100%; max-width: 480px; padding: 8px; border: 1px solid #ccc;
}
table { width: 100%; border-collapse: collapse; background: #fff; }
th, td { border: 1px solid #e5e5e5; padding: 8px; text-align: left; vertical-align: top; }
th { background: #fafafa; }
footer { background: #2b2b2b; color: #bbb; font-size: 12px; }
.flash { background: #fff3cd; border: 1px solid #ffe08a; padding: 8px 12px; margin-bottom: 12px; }
.cols { display: grid; grid-template-columns: 240px 1fr; gap: 14px; }
@media (max-width: 800px) {
  .cols { grid-template-columns: 1fr; }
  header .wrap { flex-direction: column; align-items: stretch; }
}
.admin body, body.admin { background: #eceff1; }
.admin-nav { background: #263238; color: #fff; padding: 10px 16px; }
.admin-nav a { color: #fff; margin-right: 12px; }
.phone-mask { color: #888; }