:root {
  --primary: #6e59ff; /* 主色（紫） */
  --primary-grad-start: #7c4dff;
  --primary-grad-end: #6e59ff;
  --success: #52c41a;
  --danger: #d9363e;
  --warning: #faad14;
  --bg: #f7f9fc;
  --card: #ffffff;
  --text: #1f2329;
  --muted: #666;
  --border: #e5e6eb;
  --shadow: 0 8px 24px rgba(21, 24, 31, 0.08);
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--text);
}

/* 通用布局 */
.container { max-width: 1080px; margin: 24px auto; padding: 0 16px; }
.header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 20px; background: var(--card); border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 10;
}
.header h1 { margin: 0; font-size: 20px; color: var(--primary); letter-spacing: .2px; }

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 18px 20px;
  box-shadow: var(--shadow);
}
.card.center { max-width: 560px; margin: 48px auto; }

/* 表单控件 */
.input, input[type="text"], input[type="number"], input[type="password"], textarea, select {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: #fff;
  font-size: 14px;
  outline: none;
}
.input:focus, input:focus, textarea:focus, select:focus {
  border-color: #c8c9ff; box-shadow: 0 0 0 3px rgba(110, 89, 255, 0.15);
}
label { display: block; margin: 14px 0 8px; color: #333; }

/* 按钮 */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: 8px;
  padding: 10px 16px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: #fff;
  color: #333;
  font-size: 14px;
  cursor: pointer;
  transition: transform .02s ease, box-shadow .2s ease, background .2s ease;
}
.btn:hover { box-shadow: 0 4px 12px rgba(0,0,0,0.06); }
.btn:active { transform: translateY(1px); }
.btn.primary {
  color: #fff; border-color: transparent;
  background: linear-gradient(0deg, var(--primary-grad-start), var(--primary-grad-end));
}
.btn.success { background: var(--success); color:#fff; border-color: var(--success); }
.btn.danger { background: var(--danger); color:#fff; border-color: var(--danger); }
.btn.ghost { background: #f4f4f5; color: #333; }
.btn.small { padding: 6px 10px; font-size: 13px; border-radius: 10px; }
.btn.block { width: 100%; }
.btn.disabled, .btn:disabled { opacity: .6; cursor: not-allowed; box-shadow: none; }

/* 工具栏 */
.toolbar { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 16px; }

/* 表格 */
table { width: 100%; border-collapse: collapse; table-layout: fixed; }
thead { background: #fafafa; }
th, td {
  padding: 12px 10px; border-bottom: 1px solid var(--border);
  text-overflow: ellipsis; overflow: hidden; white-space: nowrap;
}
th { text-align: left; color: #3c3f44; font-weight: 600; font-size: 13px; }
td { font-size: 14px; }
.table-empty { text-align: center; padding: 24px 10px; color: var(--muted); }

/* 徽章与状态 */
.badge {
  display: inline-block; padding: 4px 10px; border-radius: 999px;
  font-size: 12px; line-height: 18px; border: 1px solid var(--border); color: #444;
}
.badge.active { color: #0a7; border-color: #0a7; background: #e9f9f3; }
.badge.closed { color: #a00; border-color: #f3a; background: #fff0f3; }
.badge.incomplete { color: #d46b08; border-color: var(--warning); background: #fff7e6; }
.badge.complete { color: #0a7; border-color: #0a7; background: #e9f9f3; }

/* 进度步骤条 */
.flow-title { font-size: 20px; margin: 8px 0 12px; color: #1f2329; }
.steps {
  display: flex; align-items: center; gap: 12px; margin-bottom: 16px;
}
.step {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 14px; border-radius: 12px; border: 1px solid var(--border);
  background: #fff;
}
.step .badge { font-weight: 600; }
.step .label { font-size: 13px; }
.step.done { background: #e9f9f3; border-color: #0a7; }
.step.done .badge { border-color: #0a7; color: #0a7; }
.step.current { background: #efeaff; border-color: var(--primary); }
.step.current .badge { border-color: var(--primary); color: var(--primary); }
.divider { flex: 0 0 24px; height: 2px; background: var(--border); border-radius: 2px; }

/* 栅格与面板 */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.grid-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 16px; }

.kv { display: flex; gap: 10px; font-size: 14px; color: #333; }
.kv .key { color: var(--muted); }

.status { font-size: 13px; color: var(--muted); }

/* 大屏展示专用 */
.dark {
  --bg: #0b1020;
  --card: #111834;
  --text: #e6f0ff;
  --muted: #9fb3d9;
  --border: rgba(255,255,255,0.06);
}
.dark .card { box-shadow: none; }
.title { font-size: 24px; font-weight: 700; letter-spacing: .3px; }
.subject { font-size: 16px; color: var(--muted); }

.avg-box {
  margin-top: 10px; padding: 12px 16px; background: var(--card);
  border-radius: 12px; display: block;
}
.avg-box .label { color: var(--muted); margin-right: 10px; }
.avg-box .value { font-size: 28px; font-weight: 700; color: var(--success); }

/* 图标占位 */
.icon-lock {
  width: 56px; height: 56px; border-radius: 16px;
  background: linear-gradient(0deg, var(--primary-grad-start), var(--primary-grad-end));
  box-shadow: 0 6px 18px rgba(110,89,255,.3);
  display: inline-flex; align-items: center; justify-content: center; color: #fff; font-size: 24px;
}

/* 响应式（适配小屏） */
@media (max-width: 768px) {
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
  .header { position: static; }
}

/* 细节优化 */
.notice { position: fixed; right: 20px; bottom: 20px; background: #fff; border: 1px solid var(--border); border-radius: 12px; padding: 10px 12px; box-shadow: var(--shadow); font-size: 13px; color: #333; }
.link { color: var(--primary); text-decoration: none; font-size: 13px; }

/* 表格内操作小按钮 */
.btn.inline { padding: 4px 8px; font-size: 12px; border-radius: 8px; }