* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", sans-serif;
  background: #f0f2f5;
  color: #333;
  line-height: 1.6;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 24px;
}

header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 2px solid #e8e8e8;
}

header h1 {
  font-size: 24px;
  color: #1a1a2e;
}

nav a {
  margin-left: 16px;
  text-decoration: none;
  color: #666;
  font-size: 14px;
}

nav a.active, nav a:hover {
  color: #4472C4;
  font-weight: 600;
}

.alert {
  padding: 12px 16px;
  border-radius: 6px;
  margin-bottom: 16px;
  font-size: 14px;
}

.alert-success { background: #f6ffed; border: 1px solid #b7eb8f; color: #389e0d; }
.alert-error { background: #fff2f0; border: 1px solid #ffccc7; color: #cf1322; }
.alert-info { background: #e6f7ff; border: 1px solid #91d5ff; color: #096dd9; }
.alert-warning { background: #fffbe6; border: 1px solid #ffe58f; color: #d48806; }

.toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
}

.period-form {
  display: flex;
  align-items: center;
  gap: 8px;
}

.period-form input[type="month"] {
  padding: 6px 10px;
  border: 1px solid #d9d9d9;
  border-radius: 4px;
  font-size: 14px;
}

.btn {
  display: inline-block;
  padding: 8px 20px;
  border: none;
  border-radius: 4px;
  font-size: 14px;
  cursor: pointer;
  text-decoration: none;
  color: #fff;
}

.btn-primary { background: #4472C4; }
.btn-primary:hover { background: #3461b3; }
.btn-warning { background: #faad14; color: #333; }
.btn-warning:hover { background: #d48806; color: #fff; }

.team-card {
  background: #fff;
  border-radius: 8px;
  padding: 20px;
  margin-bottom: 16px;
  box-shadow: 0 1px 3px rgba(0,0,0,0.08);
}

.team-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}

.team-header h2 {
  font-size: 18px;
}

.badge {
  background: #e6f7ff;
  color: #096dd9;
  padding: 2px 8px;
  border-radius: 10px;
  font-size: 13px;
  font-weight: normal;
}

.status {
  font-size: 13px;
  padding: 2px 10px;
  border-radius: 10px;
}

.status.done { background: #f6ffed; color: #389e0d; }
.status.pending { background: #fff7e6; color: #d48806; }

table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 12px;
  font-size: 14px;
}

th, td {
  padding: 10px 12px;
  text-align: left;
  border-bottom: 1px solid #f0f0f0;
}

th {
  background: #fafafa;
  font-weight: 600;
  color: #666;
}

.tag {
  font-size: 12px;
  padding: 2px 8px;
  border-radius: 4px;
}

.tag.done { background: #f6ffed; color: #389e0d; }
.tag.pending { background: #fff7e6; color: #d48806; }

.member-tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.tab {
  padding: 8px 16px;
  border: 1px solid #d9d9d9;
  border-radius: 4px;
  text-decoration: none;
  color: #333;
  font-size: 14px;
}

.tab.active {
  background: #4472C4;
  color: #fff;
  border-color: #4472C4;
}

.score-section {
  background: #fff;
  border-radius: 8px;
  padding: 24px;
  box-shadow: 0 1px 3px rgba(0,0,0,0.08);
}

.score-section h2 {
  margin-bottom: 16px;
}

.member-info {
  display: flex;
  gap: 24px;
  margin-bottom: 20px;
  color: #666;
  font-size: 14px;
}

.form-group {
  margin-bottom: 16px;
}

.form-group label {
  display: block;
  font-weight: 600;
  margin-bottom: 4px;
}

.form-group .hint {
  font-size: 13px;
  color: #999;
  margin-bottom: 6px;
}

.form-group input[type="number"],
.form-group textarea {
  width: 100%;
  max-width: 400px;
  padding: 8px 12px;
  border: 1px solid #d9d9d9;
  border-radius: 4px;
  font-size: 14px;
}

.form-group textarea {
  max-width: 600px;
  resize: vertical;
}

.existing-result {
  background: #f6ffed;
  padding: 10px 14px;
  border-radius: 4px;
  font-size: 13px;
  color: #389e0d;
  margin-bottom: 16px;
}

.report-table th, .report-table td {
  font-size: 13px;
}

.grade {
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 13px;
}

.grade-A { background: #f6ffed; color: #389e0d; }
.grade-B { background: #e6f7ff; color: #096dd9; }
.grade-C { background: #fffbe6; color: #d48806; }
.grade-D { background: #fff7e6; color: #d46b08; }
.grade-E { background: #fff2f0; color: #cf1322; }

.empty {
  text-align: center;
  color: #999;
  padding: 40px;
  font-size: 16px;
}

.hint {
  color: #999;
  font-size: 14px;
}

/* ── 统计栏 ── */
.stats-bar {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 12px;
  margin-bottom: 20px;
}
.stat-card {
  background: #fff;
  border-radius: 8px;
  padding: 16px;
  text-align: center;
  box-shadow: 0 1px 3px rgba(0,0,0,0.08);
}
.stat-value { font-size: 28px; font-weight: 700; color: #4472C4; }
.stat-label { font-size: 13px; color: #999; margin-top: 4px; }
.stat-danger .stat-value { color: #cf1322; }

/* ── 按钮扩展 ── */
.btn-secondary { background: #f0f0f0; color: #333; }
.btn-secondary:hover { background: #d9d9d9; }
.btn-danger { background: #ff4d4f; }
.btn-danger:hover { background: #cf1322; }
.btn-sm { padding: 4px 12px; font-size: 12px; }
.toolbar-actions { display: flex; gap: 8px; }

/* ── 逾期 ── */
.overdue-banner {
  background: #fff2f0;
  border: 1px solid #ffccc7;
  border-radius: 6px;
  padding: 12px 16px;
  margin-bottom: 16px;
  font-size: 14px;
  color: #cf1322;
}
.status.overdue, .tag.overdue { background: #fff2f0; color: #cf1322; }
.team-overdue { border-left: 4px solid #ff4d4f; }
.team-actions { display: flex; gap: 8px; margin-bottom: 12px; }
.team-meta { font-size: 13px; color: #999; margin-bottom: 8px; display: flex; gap: 16px; }

/* ── 评分表单增强 ── */
.dimension-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 16px;
  margin-bottom: 20px;
}
.dimension-card {
  border: 1px solid #e8e8e8;
  border-radius: 8px;
  padding: 16px;
  background: #fafafa;
}
.dim-header { display: flex; justify-content: space-between; margin-bottom: 4px; }
.dim-weight { font-size: 12px; color: #4472C4; background: #e6f7ff; padding: 2px 8px; border-radius: 4px; }
.dim-slider { width: 100%; margin: 8px 0; }
.dim-score-row { display: flex; align-items: center; gap: 8px; }
.dim-number { width: 80px; padding: 4px 8px; border: 1px solid #d9d9d9; border-radius: 4px; }
.dim-range { font-size: 12px; color: #999; }
.score-preview {
  display: flex; gap: 32px; background: #e6f7ff; border-radius: 8px;
  padding: 16px 24px; margin-bottom: 20px;
}
.preview-item span { display: block; font-size: 13px; color: #666; }
.preview-item strong { font-size: 24px; color: #4472C4; }

/* ── 报表 ── */
.report-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 16px;
  margin-bottom: 20px;
}
.panel {
  background: #fff; border-radius: 8px; padding: 20px;
  box-shadow: 0 1px 3px rgba(0,0,0,0.08);
}
.panel h3 { margin-bottom: 12px; font-size: 16px; }
.compact-table { width: 100%; font-size: 14px; }
.compact-table td { padding: 6px 8px; border-bottom: 1px solid #f0f0f0; }
.bar-track { background: #f0f0f0; border-radius: 4px; height: 8px; width: 80px; }
.bar-fill { background: #4472C4; border-radius: 4px; height: 100%; }

/* ── 管理后台 ── */
.admin-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
}
.admin-card {
  background: #fff; border-radius: 8px; padding: 24px;
  box-shadow: 0 1px 3px rgba(0,0,0,0.08);
  text-decoration: none; color: inherit;
  transition: box-shadow 0.2s;
}
.admin-card:hover { box-shadow: 0 4px 12px rgba(0,0,0,0.12); }
.admin-card h3 { margin-bottom: 8px; color: #1a1a2e; }
.admin-card p { font-size: 14px; color: #666; margin-bottom: 12px; }
.admin-link { font-size: 13px; color: #4472C4; }

.admin-form fieldset {
  border: 1px solid #e8e8e8; border-radius: 8px;
  padding: 20px; margin-bottom: 20px; background: #fff;
}
.admin-form legend { font-weight: 600; padding: 0 8px; }
.form-row {
  display: flex; flex-wrap: wrap; gap: 12px;
  align-items: flex-end; margin-bottom: 12px;
}
.form-row .form-group { flex: 1; min-width: 120px; }
.form-row .form-group input {
  width: 100%; padding: 6px 10px;
  border: 1px solid #d9d9d9; border-radius: 4px; font-size: 14px;
}
.form-actions { display: flex; gap: 8px; margin-top: 16px; }
.admin-form .form-group input[type="file"] { padding: 8px 0; }