:root {
  --primary: #1a237e;
  --primary-light: #3949ab;
  --bg: #f5f6fa;
  --card: #ffffff;
  --text: #1e293b;
  --muted: #64748b;
  --border: #e2e8f0;
  --green: #16a34a;
  --orange: #ea580c;
  --danger: #dc2626;
  --sidebar-w: 240px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: "Microsoft YaHei", "PingFang SC", sans-serif; background: var(--bg); color: var(--text); line-height: 1.6; }

/* 登录 */
.login-wrap { min-height: 100vh; display: flex; align-items: center; justify-content: center; background: linear-gradient(135deg, #1a237e, #3949ab); }
.login-card { background: #fff; padding: 40px; border-radius: 12px; width: 360px; box-shadow: 0 10px 40px rgba(0,0,0,0.2); }
.login-card h1 { font-size: 22px; text-align: center; color: var(--primary); }
.login-sub { text-align: center; color: var(--muted); margin-bottom: 24px; font-size: 13px; }
.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-size: 13px; margin-bottom: 6px; color: #475569; }
.form-group input { width: 100%; padding: 10px 12px; border: 1px solid var(--border); border-radius: 6px; font-size: 14px; }
.error-msg { color: var(--danger); font-size: 13px; margin-bottom: 12px; }

/* 按钮 */
.btn { cursor: pointer; border: none; border-radius: 6px; padding: 9px 16px; font-size: 14px; transition: all .15s; }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-light); }
.btn-ghost { background: transparent; color: var(--primary); border: 1px solid var(--border); }
.btn-ghost:hover { background: #eef1f8; }
.btn-danger { background: #fff; color: var(--danger); border: 1px solid #fecaca; }
.btn-danger:hover { background: #fef2f2; }
.btn-block { width: 100%; }
.btn-sm { padding: 4px 10px; font-size: 12px; }

/* 布局 */
.app-shell { display: flex; min-height: 100vh; }

/* 侧边栏 */
.sidebar { width: var(--sidebar-w); background: #1e1b4b; color: #e2e8f0; display: flex; flex-direction: column; position: sticky; top: 0; height: 100vh; }
.sidebar-logo { padding: 18px 20px; font-size: 16px; font-weight: bold; color: #fff; border-bottom: 1px solid rgba(255,255,255,0.1); }
.sidebar-nav { flex: 1; overflow-y: auto; padding: 10px 0; }
.nav-big { padding: 12px 20px; cursor: pointer; display: flex; justify-content: space-between; align-items: center; font-weight: 600; color: #cbd5e1; transition: background .15s; }
.nav-big:hover { background: rgba(255,255,255,0.06); }
.nav-big.active { color: #fff; background: rgba(255,255,255,0.08); }
.caret { transition: transform .15s; font-size: 12px; }
.caret.open { transform: rotate(180deg); }
.nav-subs { background: rgba(0,0,0,0.18); }
.nav-sub { padding: 10px 20px 10px 36px; cursor: pointer; font-size: 13px; color: #94a3b8; transition: background .15s; }
.nav-sub:hover { background: rgba(255,255,255,0.05); color: #e2e8f0; }
.nav-sub.active { color: #fff; background: rgba(99,102,241,0.3); border-left: 3px solid #818cf8; }
.nav-sub-feedback { opacity: 0.8; font-size: 12px; }
.nav-sys { border-top: 1px solid rgba(255,255,255,0.1); margin-top: 8px; }
.sidebar-footer { padding: 14px 20px; border-top: 1px solid rgba(255,255,255,0.1); display: flex; justify-content: space-between; align-items: center; }
.user-chip { font-size: 12px; color: #94a3b8; }

/* 内容区 */
.content { flex: 1; padding: 24px; max-width: 1000px; }
.page-head { display: flex; align-items: center; gap: 16px; margin-bottom: 18px; }
.page-head h2 { font-size: 20px; }
.muted { color: var(--muted); font-size: 13px; }

/* 标签页 */
.tabs { display: flex; gap: 4px; border-bottom: 2px solid var(--border); margin-bottom: 16px; }
.tab { padding: 10px 18px; cursor: pointer; font-size: 14px; color: var(--muted); border: none; background: none; border-bottom: 2px solid transparent; margin-bottom: -2px; }
.tab.active { color: var(--primary); border-bottom-color: var(--primary); font-weight: 600; }

/* 字段表单 */
.fields-form { background: var(--card); border: 1px solid var(--border); border-radius: 10px; padding: 8px 24px; }
.field-item { padding: 16px 0; border-bottom: 1px solid var(--border); }
.field-item:last-child { border-bottom: none; }
.field-item label { display: block; font-size: 14px; font-weight: 600; margin-bottom: 6px; }
.field-item input[type="text"], .field-item input[type="url"], .field-item textarea { width: 100%; padding: 9px 12px; border: 1px solid var(--border); border-radius: 6px; font-size: 14px; font-family: inherit; }
.field-item textarea { min-height: 90px; resize: vertical; }
.link-open { display: inline-block; margin-top: 8px; color: var(--primary-light); font-size: 13px; text-decoration: none; }
.link-open:hover { text-decoration: underline; }
.form-actions { margin-top: 16px; }

/* list 表格 */
.list-table-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: 8px; margin-bottom: 8px; }
.list-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.list-table th { background: #f1f5f9; color: #475569; padding: 8px 10px; text-align: left; font-weight: 600; border-bottom: 1px solid var(--border); white-space: nowrap; }
.list-table td { padding: 6px 8px; border-bottom: 1px solid #f1f5f9; }
.list-table tr:last-child td { border-bottom: none; }
.list-table input, .list-table select { width: 100%; padding: 6px 8px; border: 1px solid var(--border); border-radius: 4px; font-size: 13px; font-family: inherit; box-sizing: border-box; }
.list-table input:focus, .list-table select:focus { outline: none; border-color: var(--primary-light); }

/* 开关 */
.switch { position: relative; display: inline-block; width: 44px; height: 24px; }
.switch input { opacity: 0; width: 0; height: 0; }
.slider { position: absolute; cursor: pointer; inset: 0; background: #cbd5e1; border-radius: 24px; transition: .2s; }
.slider:before { content: ""; position: absolute; height: 18px; width: 18px; left: 3px; top: 3px; background: #fff; border-radius: 50%; transition: .2s; }
.switch input:checked + .slider { background: var(--green); }
.switch input:checked + .slider:before { transform: translateX(20px); }

/* 反馈 */
.feedback-box { background: var(--card); border: 1px solid var(--border); border-radius: 10px; padding: 20px; }
.fb-input-row { display: flex; gap: 8px; margin-bottom: 12px; }
.fb-input-row input { flex: 1; padding: 9px 12px; border: 1px solid var(--border); border-radius: 6px; font-size: 14px; }
.fb-input-row select { padding: 9px 12px; border: 1px solid var(--border); border-radius: 6px; font-size: 14px; }
.fb-actions { margin-bottom: 16px; }
.fb-list { display: flex; flex-direction: column; gap: 10px; }
.fb-item { border: 1px solid var(--border); border-radius: 8px; padding: 12px 16px; }
.fb-item.resolved { opacity: 0.55; }
.fb-item-head { display: flex; align-items: center; gap: 10px; margin-bottom: 6px; }
.fb-badge { font-size: 11px; padding: 2px 8px; border-radius: 4px; background: #e2e8f0; color: #475569; }
.fb-badge.urgent { background: #fee2e2; color: var(--danger); }
.fb-author { font-size: 12px; color: var(--muted); }
.fb-time { font-size: 12px; color: #94a3b8; }
.fb-content { font-size: 14px; }
.fb-summary { margin-top: 16px; background: #f8fafc; border: 1px solid var(--border); border-radius: 8px; padding: 16px; }
.fb-summary pre { white-space: pre-wrap; font-family: inherit; font-size: 14px; }

/* 卡片 */
.card { background: var(--card); border: 1px solid var(--border); border-radius: 10px; padding: 20px; }
.member-row, .log-row { display: flex; align-items: center; gap: 12px; padding: 10px 0; border-bottom: 1px solid var(--border); }
.member-row:last-child, .log-row:last-child { border-bottom: none; }
.member-name { flex: 1; font-weight: 600; }
.member-actions { display: flex; gap: 8px; }
.log-time { font-size: 12px; color: #94a3b8; min-width: 150px; }
.log-user { font-size: 13px; font-weight: 600; min-width: 80px; }
.log-action { font-size: 13px; color: var(--primary-light); min-width: 90px; }
.log-target { font-size: 13px; color: var(--muted); flex: 1; }

/* AI 评审 */
.review-block { background: #f8fafc; border: 1px solid var(--border); border-radius: 8px; padding: 14px; margin-bottom: 12px; }
.review-block.ok { background: #f0fdf4; border-color: #bbf7d0; color: #15803d; }
.review-block ul { margin: 8px 0 0 18px; }
.review-item { border: 1px solid var(--border); border-radius: 8px; padding: 12px; margin-top: 10px; background: #fff; }
.review-item-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 8px; }
.review-item-actions { display: flex; gap: 6px; }
.review-item-label { font-weight: 600; font-size: 13px; color: var(--primary); }
.review-item-text { font-size: 13px; color: #475569; background: #f8fafc; padding: 10px; border-radius: 6px; white-space: pre-wrap; }

/* 备份 */
.backup-row { display: flex; align-items: center; gap: 12px; margin-bottom: 20px; }
.backup-row textarea { width: 100%; min-height: 120px; padding: 10px; border: 1px solid var(--border); border-radius: 6px; font-family: inherit; font-size: 13px; resize: vertical; }

/* 提示 */
.toast { position: fixed; top: 20px; right: 20px; padding: 12px 20px; border-radius: 8px; color: #fff; font-size: 14px; z-index: 9999; display: none; }
.toast.ok { background: var(--green); }
.toast.err { background: var(--danger); }

@media (max-width: 768px) {
  .sidebar { width: 60px; }
  .sidebar-logo { font-size: 0; padding: 18px 8px; }
  .nav-big span:first-child, .nav-sub { font-size: 0; }
  .content { padding: 16px; }
}