:root {
  --bg: #f6f7fa;
  --card: #ffffff;
  --border: #e4e8ef;
  --primary: #2557d6;
  --primary-hover: #1d47b3;
  --text: #1f2430;
  --text-dim: #68707f;
  --danger: #d63535;
  --radius: 12px;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
  line-height: 1.6;
}

#app { min-height: 100vh; }

/* ---------- 居中卡片页（登录 / 待审核 / 错误） ---------- */
.center-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}
.center-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 48px 40px;
  max-width: 420px;
  width: 100%;
  text-align: center;
  box-shadow: 0 4px 24px rgba(31, 36, 48, 0.05);
}
.center-card .logo {
  font-size: 28px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 8px;
}
.center-card .sub { color: var(--text-dim); margin-bottom: 28px; }
.center-card .hint { color: var(--text-dim); font-size: 13px; margin-top: 20px; }

/* ---------- 主布局 ---------- */
.layout { display: flex; min-height: 100vh; }
.sidebar {
  width: 208px;
  flex-shrink: 0;
  background: var(--card);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  padding: 20px 12px;
}
.sidebar .brand {
  font-size: 20px;
  font-weight: 700;
  color: var(--primary);
  padding: 0 12px 20px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 12px;
}
.nav-item {
  display: block;
  padding: 9px 12px;
  border-radius: 8px;
  color: var(--text-dim);
  text-decoration: none;
  cursor: pointer;
  margin-bottom: 2px;
  font-size: 14px;
}
.nav-item:hover { background: var(--bg); color: var(--text); }
.nav-item.active { background: #eaf0fd; color: var(--primary); font-weight: 600; }

.main { flex: 1; display: flex; flex-direction: column; min-width: 0; }
.topbar {
  height: 56px;
  background: var(--card);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 12px;
  padding: 0 24px;
}
.topbar .username { color: var(--text); font-weight: 500; }
.content { padding: 24px; flex: 1; }

.page-title { font-size: 18px; font-weight: 600; margin-bottom: 16px; }
.page-desc { color: var(--text-dim); margin-bottom: 16px; font-size: 13px; }

/* ---------- 卡片 / 按钮 / 表单 ---------- */
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 16px;
}

.btn {
  display: inline-block;
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--text);
  border-radius: 8px;
  padding: 7px 14px;
  font-size: 13px;
  cursor: pointer;
  text-decoration: none;
}
.btn:hover { background: var(--bg); }
.btn-primary { background: var(--primary); border-color: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-hover); }
.btn-danger { color: var(--danger); }
.btn-danger:hover { background: #fdf0f0; }
.btn-sm { padding: 4px 10px; font-size: 12px; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

.btn-row { display: flex; gap: 8px; flex-wrap: wrap; }

.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(210px, 1fr));
  gap: 12px 20px;
}
.form-item label {
  display: block;
  font-size: 12px;
  color: var(--text-dim);
  margin-bottom: 4px;
}
.form-item input[type="text"],
.form-item input[type="number"],
.form-item select,
.form-item textarea {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 7px 10px;
  font-size: 13px;
  font-family: inherit;
  background: #fff;
}
.form-item input:focus, .form-item select:focus, .form-item textarea:focus {
  outline: 2px solid rgba(37, 87, 214, 0.25);
  border-color: var(--primary);
}
.form-item input[type="checkbox"] { width: 16px; height: 16px; accent-color: var(--primary); }
.group-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-dim);
  margin: 18px 0 10px;
  padding-bottom: 6px;
  border-bottom: 1px dashed var(--border);
}
.group-title:first-of-type { margin-top: 4px; }

/* ---------- 表格 ---------- */
table.list {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}
table.list th, table.list td {
  text-align: left;
  padding: 9px 12px;
  border-bottom: 1px solid var(--border);
}
table.list th { color: var(--text-dim); font-weight: 500; font-size: 12px; }
table.list tr:hover td { background: var(--bg); }

.tag {
  display: inline-block;
  border-radius: 6px;
  padding: 1px 8px;
  font-size: 12px;
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text-dim);
}
.tag.blue { background: #eaf0fd; border-color: #c8d8f8; color: var(--primary); }
.tag.green { background: #eaf7ee; border-color: #c4e8cf; color: #1d8348; }
.tag.red { background: #fdf0f0; border-color: #f5c9c9; color: var(--danger); }
.tag.orange { background: #fdf4e7; border-color: #f5ddba; color: #b26a00; }

/* ---------- 消息 ---------- */
.msg { padding: 10px 14px; border-radius: 8px; margin-bottom: 14px; font-size: 13px; }
.msg.error { background: #fdf0f0; color: var(--danger); border: 1px solid #f5c9c9; }
.msg.ok { background: #eaf7ee; color: #1d8348; border: 1px solid #c4e8cf; }

.empty { color: var(--text-dim); text-align: center; padding: 40px 0; }
.loading { color: var(--text-dim); padding: 24px 0; text-align: center; }

/* ---------- Tabs ---------- */
.tabs { display: flex; gap: 4px; margin-bottom: 16px; border-bottom: 1px solid var(--border); }
.tab {
  padding: 8px 16px;
  cursor: pointer;
  color: var(--text-dim);
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  font-size: 14px;
}
.tab.active { color: var(--primary); border-bottom-color: var(--primary); font-weight: 600; }

pre.skill-md {
  background: #fbfcfe;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 16px;
  overflow: auto;
  font-family: "SF Mono", Menlo, Consolas, monospace;
  font-size: 12.5px;
  line-height: 1.65;
  white-space: pre-wrap;
  word-break: break-word;
}

.toolbar { display: flex; align-items: center; gap: 12px; margin-bottom: 14px; flex-wrap: wrap; }
.toolbar select { min-width: 180px; }

/* ---------- 工作台 ---------- */
.wb-grid {
  display: grid;
  grid-template-columns: minmax(360px, 440px) minmax(0, 1fr);
  gap: 16px;
  align-items: start;
}
@media (max-width: 1100px) {
  .wb-grid { grid-template-columns: 1fr; }
}
.cell-sub { color: var(--text-dim); font-size: 12px; }
.wb-rawtext {
  margin-top: 12px;
  padding: 10px 12px;
  background: var(--bg);
  border-radius: 8px;
  max-height: 96px;
  overflow: auto;
  word-break: break-all;
}
.wb-counts {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
  color: var(--text-dim);
  font-size: 13px;
}
.wb-counts b { color: var(--text); }
table.result th, table.result td { vertical-align: top; }
table.result td { font-size: 12.5px; }
.risk { color: var(--danger); }
.wb-run-row { cursor: pointer; }

/* 人工标注三态按钮 */
.vd-row { flex-direction: column; gap: 4px; }
.vd-yes.active { background: #eaf7ee; border-color: #1d8348; color: #1d8348; font-weight: 600; }
.vd-no.active { background: #fdf0f0; border-color: var(--danger); color: var(--danger); font-weight: 600; }
.vd-unsure.active { background: #fdf4e7; border-color: #b26a00; color: #b26a00; font-weight: 600; }

/* ---------- 实验复盘 ---------- */
.rate-bar {
  position: relative;
  height: 18px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 9px;
  overflow: hidden;
}
.rate-fill {
  height: 100%;
  background: linear-gradient(90deg, #7aa5ec, var(--primary));
  border-radius: 9px;
}
.rate-text {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  font-weight: 600;
  color: var(--text);
}
.runs-group-row { cursor: pointer; }
.runs-detail-row > td { background: #fbfcfe; }
.runs-recent { display: flex; flex-direction: column; gap: 6px; padding: 6px 2px; }
.runs-recent-item {
  display: flex;
  gap: 14px;
  align-items: center;
  padding: 7px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #fff;
  cursor: pointer;
  font-size: 12.5px;
}
.runs-recent-item:hover { border-color: var(--primary); }

/* ---------- AI 调教抽屉 ---------- */
.chat-mask {
  position: fixed;
  inset: 0;
  background: rgba(31, 36, 48, 0.35);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s;
  z-index: 90;
}
.chat-mask.show { opacity: 1; pointer-events: auto; }
.chat-drawer {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: 420px;
  max-width: 94vw;
  background: var(--card);
  border-left: 1px solid var(--border);
  box-shadow: -8px 0 24px rgba(31, 36, 48, 0.08);
  display: flex;
  flex-direction: column;
  transform: translateX(100%);
  transition: transform 0.22s;
  z-index: 91;
}
.chat-drawer.show { transform: translateX(0); }
.chat-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 16px 0;
}
.chat-title { font-size: 15px; font-weight: 600; }
.chat-drawer .tabs { padding: 0 16px; margin-bottom: 0; }
.chat-drawer .tab { padding: 8px 10px; font-size: 13px; }
.chat-branch-row {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  border-bottom: 1px solid var(--border);
  font-size: 12px;
  color: var(--text-dim);
}
.chat-branch-row select {
  flex: 1;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 5px 8px;
  font-size: 12.5px;
  background: #fff;
}
.chat-msgs {
  flex: 1;
  overflow-y: auto;
  padding: 14px 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.chat-bubble { max-width: 92%; display: flex; flex-direction: column; gap: 6px; }
.chat-bubble.user { align-self: flex-end; align-items: flex-end; }
.chat-bubble.assistant { align-self: flex-start; align-items: flex-start; }
.chat-bubble-body {
  padding: 9px 12px;
  border-radius: 12px;
  font-size: 13px;
  white-space: pre-wrap;
  word-break: break-word;
}
.chat-bubble.user .chat-bubble-body {
  background: var(--primary);
  color: #fff;
  border-bottom-right-radius: 4px;
}
.chat-bubble.assistant .chat-bubble-body {
  background: var(--bg);
  border: 1px solid var(--border);
  border-bottom-left-radius: 4px;
}
.chat-cursor::after {
  content: '▍';
  color: var(--primary);
  animation: chat-blink 0.9s steps(1) infinite;
}
@keyframes chat-blink { 50% { opacity: 0; } }
.chat-input-row {
  display: flex;
  gap: 8px;
  padding: 12px 16px;
  border-top: 1px solid var(--border);
  align-items: flex-end;
}
.chat-input-row textarea {
  flex: 1;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px 10px;
  font-size: 13px;
  font-family: inherit;
  resize: none;
}
.chat-input-row textarea:focus {
  outline: 2px solid rgba(37, 87, 214, 0.25);
  border-color: var(--primary);
}
.chat-modal {
  position: fixed;
  inset: 0;
  background: rgba(31, 36, 48, 0.45);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 95;
}
.chat-modal-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  width: 400px;
  max-width: 92vw;
  box-shadow: 0 8px 32px rgba(31, 36, 48, 0.12);
}