/* 后台管理样式 */
:root {
  --primary: #9b1c1c;
  --primary-dark: #6b1212;
  --sidebar: #2b2020;
  --sidebar-hover: #3d2d2d;
  --bg: #f4f5f7;
  --card: #ffffff;
  --text: #2b2b2b;
  --muted: #8a8a8a;
  --border: #e5e7eb;
  --green: #1d7a35;
  --red: #c0392b;
  --blue: #2563eb;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif; background: var(--bg); color: var(--text); }
a { color: var(--blue); text-decoration: none; }
a:hover { text-decoration: underline; }

/* 登录页 */
.login-wrap { min-height: 100vh; display: flex; align-items: center; justify-content: center; background: linear-gradient(135deg, var(--primary), var(--primary-dark)); }
.login-box { background: #fff; border-radius: 14px; padding: 40px; width: 380px; box-shadow: 0 20px 60px rgba(0,0,0,.3); }
.login-box h1 { text-align: center; color: var(--primary-dark); margin-bottom: 6px; }
.login-box .sub { text-align: center; color: var(--muted); font-size: 13px; margin-bottom: 26px; }
.login-box .field { margin-bottom: 16px; }
.login-box label { display: block; margin-bottom: 6px; font-size: 14px; color: #555; }
.login-box input { width: 100%; padding: 11px 14px; border: 1px solid var(--border); border-radius: 8px; font-size: 15px; }
.login-box .captcha-row { display: flex; gap: 10px; align-items: center; }
.login-box .captcha-row input { flex: 1; }
.login-box .captcha-img { height: 42px; border-radius: 6px; cursor: pointer; background: #f0f0f0; }
.login-box button { width: 100%; padding: 12px; background: var(--primary); color: #fff; border: none; border-radius: 8px; font-size: 16px; font-weight: 600; cursor: pointer; margin-top: 6px; }
.login-box button:hover { background: var(--primary-dark); }
.login-box .error { background: #fdeaea; color: var(--red); padding: 10px; border-radius: 8px; margin-bottom: 16px; text-align: center; font-size: 14px; }
.login-box .back { text-align: center; margin-top: 16px; font-size: 13px; }

/* 后台布局 */
.admin-layout { display: flex; min-height: 100vh; }
.sidebar { width: 220px; background: var(--sidebar); color: #cbb; flex-shrink: 0; position: fixed; top: 0; bottom: 0; overflow-y: auto; }
.sidebar .brand { padding: 22px 18px; font-size: 17px; color: #fff; font-weight: 700; border-bottom: 1px solid #3d2d2d; }
.sidebar .brand small { display: block; font-size: 11px; color: #b89; font-weight: 400; margin-top: 3px; }
.sidebar nav { padding: 12px 0; }
.sidebar nav a { display: flex; align-items: center; gap: 10px; padding: 11px 20px; color: #cbb; font-size: 14px; }
.sidebar nav a:hover { background: var(--sidebar-hover); color: #fff; text-decoration: none; }
.sidebar nav a.active { background: var(--primary); color: #fff; }
.sidebar .ic { width: 18px; text-align: center; }
.sidebar .footer { padding: 14px 20px; font-size: 12px; color: #887; border-top: 1px solid #3d2d2d; }

.main { flex: 1; margin-left: 220px; }
.topbar { background: #fff; height: 56px; display: flex; align-items: center; justify-content: space-between; padding: 0 24px; box-shadow: 0 1px 4px rgba(0,0,0,.06); position: sticky; top: 0; z-index: 10; }
.topbar .crumb { font-size: 16px; font-weight: 600; color: #333; }
.topbar .user { font-size: 14px; color: #555; }
.topbar .user a { margin-left: 14px; }

.content { padding: 24px; }
.card { background: #fff; border-radius: 10px; padding: 22px; box-shadow: 0 1px 3px rgba(0,0,0,.06); margin-bottom: 20px; }
.card h3 { font-size: 16px; margin-bottom: 16px; color: #333; border-bottom: 1px solid var(--border); padding-bottom: 10px; }

/* 统计卡片 */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; margin-bottom: 24px; }
.stat { background: #fff; border-radius: 10px; padding: 22px; box-shadow: 0 1px 3px rgba(0,0,0,.06); border-left: 4px solid var(--primary); }
.stat .num { font-size: 32px; font-weight: 700; color: var(--primary-dark); }
.stat .label { color: var(--muted); font-size: 14px; margin-top: 4px; }
.stat .ic { float: right; font-size: 30px; opacity: .25; }

/* 按钮 */
.btn { display: inline-block; padding: 7px 16px; border-radius: 6px; border: none; cursor: pointer; font-size: 14px; text-decoration: none; }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); text-decoration: none; color:#fff; }
.btn-blue { background: var(--blue); color: #fff; }
.btn-green { background: var(--green); color: #fff; }
.btn-gray { background: #94a3b8; color: #fff; }
.btn-danger { background: var(--red); color: #fff; }
.btn-sm { padding: 4px 10px; font-size: 12px; }
.btn:hover { opacity: .9; text-decoration: none; color:#fff; }
.toolbar { display: flex; justify-content: space-between; align-items: center; margin-bottom: 16px; gap: 12px; flex-wrap: wrap; }
.search-box { display: flex; gap: 8px; }
.search-box input { padding: 7px 12px; border: 1px solid var(--border); border-radius: 6px; width: 240px; }
.search-box button { padding: 7px 16px; }

/* 表格 */
table.data { width: 100%; border-collapse: collapse; }
table.data th, table.data td { padding: 10px 12px; text-align: left; border-bottom: 1px solid var(--border); font-size: 14px; }
table.data th { background: #f8f9fa; color: #555; font-weight: 600; }
table.data tr:hover { background: #faf7f2; }
table.data .actions a { margin-right: 8px; }
.tag { display: inline-block; padding: 2px 8px; border-radius: 4px; font-size: 12px; }
.tag-top { background: #fff3cd; color: #9a6a00; }
.tag-on { background: #d4edda; color: var(--green); }
.tag-off { background: #f8d7da; color: var(--red); }
.thumb-sm { width: 60px; height: 42px; object-fit: cover; border-radius: 4px; }
.muted { color: var(--muted); font-size: 12px; }
.text-center { text-align: center; }

/* 表单 */
.form-group { margin-bottom: 16px; }
.form-group label { display: block; margin-bottom: 6px; font-weight: 600; color: #444; }
.form-group .req { color: var(--red); }
.form-group input[type=text], .form-group input[type=password], .form-group input[type=date], .form-group textarea, .form-group select {
  width: 100%; max-width: 640px; padding: 9px 12px; border: 1px solid var(--border); border-radius: 6px; font-size: 14px; font-family: inherit;
}
.form-group textarea { min-height: 140px; resize: vertical; }
.form-group .hint { color: var(--muted); font-size: 12px; margin-top: 4px; }
.checkbox-row { display: flex; align-items: center; gap: 6px; }
.form-actions { margin-top: 22px; border-top: 1px solid var(--border); padding-top: 18px; }
.form-actions .btn { margin-right: 8px; }
.current-img { margin-top: 8px; }
.current-img img { max-height: 120px; border-radius: 6px; }
.gallery-edit { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 8px; }
.gallery-edit .item { position: relative; }
.gallery-edit .item img { width: 100px; height: 70px; object-fit: cover; border-radius: 6px; }
.gallery-edit .del { position: absolute; top: -6px; right: -6px; background: var(--red); color:#fff; border:none; border-radius: 50%; width: 20px; height: 20px; cursor: pointer; font-size: 12px; }

/* 分页（后台） */
.pagination { display: flex; justify-content: center; gap: 6px; margin-top: 20px; flex-wrap: wrap; }
.pagination a, .pagination span { padding: 6px 12px; border-radius: 6px; border: 1px solid var(--border); background: #fff; color: #555; font-size: 13px; }
.pagination a:hover { background: var(--primary); color: #fff; border-color: var(--primary); text-decoration: none; }
.pagination .current { background: var(--primary); color: #fff; border-color: var(--primary); }
.pagination .disabled { color: #bbb; }

@media (max-width: 860px) {
  .sidebar { width: 60px; } .sidebar .brand small, .sidebar nav a span { display: none; }
  .main { margin-left: 60px; }
  .stats { grid-template-columns: repeat(2, 1fr); }
}