:root {
  --bg: #f5f6f8;
  --card: #ffffff;
  --line: #e6e8ee;
  --text: #1c2230;
  --muted: #7a8396;
  --primary: #2f6bff;
  --primary-dark: #1f52d0;
  --ok: #17a673;
  --warn: #e08a00;
  --danger: #d64545;
  --radius: 12px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font: 14px/1.6 -apple-system, "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
}

.hidden { display: none !important; }
.row { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; }
.between { justify-content: space-between; }
.muted { color: var(--muted); }
.small { font-size: 12px; }

button {
  font: inherit;
  cursor: pointer;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--text);
  border-radius: 8px;
  padding: 7px 14px;
  transition: .15s;
}
button:hover { border-color: #c9cfdb; }
button.primary {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
}
button.primary:hover { background: var(--primary-dark); }
button.ghost { color: var(--muted); }
button.link { border: none; background: none; color: var(--muted); padding: 4px 6px; }
button.danger { color: var(--danger); border-color: #f0c4c4; }
button:disabled { opacity: .5; cursor: not-allowed; }

input, select {
  font: inherit;
  width: 100%;
  padding: 9px 11px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  color: var(--text);
}
input:focus, select:focus { outline: none; border-color: var(--primary); }

/* ---------- 登录 ---------- */
.auth-wrap {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: linear-gradient(160deg, #eef3ff 0%, #f7f8fb 60%);
}
.auth-card {
  width: 360px;
  max-width: 100%;
  background: var(--card);
  border-radius: 16px;
  padding: 28px;
  box-shadow: 0 18px 50px rgba(28, 34, 48, .08);
}
.brand { font-size: 22px; font-weight: 700; letter-spacing: .5px; }
.brand span { display: block; font-size: 12px; font-weight: 400; color: var(--muted); margin-top: 4px; letter-spacing: 0; }
.brand.small { font-size: 17px; }
.tabs { display: flex; gap: 6px; margin: 22px 0 16px; }
.tab.active { border-color: var(--primary); color: var(--primary); background: #f2f6ff; }
#authForm label { display: block; margin-bottom: 12px; font-size: 13px; color: var(--muted); }
#authForm input { margin-top: 6px; }
#authForm button { width: 100%; margin-top: 6px; padding: 10px; }
.hint { font-size: 12px; color: var(--muted); margin: 14px 0 0; text-align: center; }
.hint.error { color: var(--danger); }

.auth-tabs { display: flex; gap: 6px; margin: 16px 0 6px; }
.auth-tab {
  flex: 1;
  padding: 8px 6px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  color: var(--muted);
  font-size: 13px;
  cursor: pointer;
}
.auth-tab.active { border-color: var(--primary); color: var(--primary); background: #f2f6ff; }

textarea {
  width: 100%;
  box-sizing: border-box;
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  font-family: inherit;
  font-size: 14px;
  resize: vertical;
}

/* ---------- 顶栏 ---------- */
.topbar {
  height: 58px;
  background: #fff;
  border-bottom: 1px solid var(--line);
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 0 24px;
  position: sticky;
  top: 0;
  z-index: 20;
}
.nav { display: flex; gap: 4px; flex: 1; }
.nav-item { border: none; background: none; color: var(--muted); padding: 8px 14px; border-radius: 8px; }
.nav-item.active { background: #f2f6ff; color: var(--primary); font-weight: 600; }
.userbox { font-size: 13px; color: var(--muted); display: flex; gap: 10px; align-items: center; }

main { max-width: 1120px; margin: 0 auto; padding: 24px; }
h1 { font-size: 20px; margin: 6px 0 18px; }
h2 { font-size: 15px; margin: 0 0 12px; }

.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 16px; }
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px;
}
.card-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 8px; }
.card-title { font-weight: 600; }
.card-sub { font-size: 12px; color: var(--muted); margin-top: 2px; word-break: break-all; }

/* 件数 */
.quota { margin-top: 16px; display: grid; gap: 12px; }
.q-label { display: flex; justify-content: space-between; font-size: 12px; color: var(--muted); margin-bottom: 5px; }
.bar { height: 7px; background: #eef0f5; border-radius: 99px; overflow: hidden; }
.bar i { display: block; height: 100%; background: var(--primary); border-radius: 99px; }
.bar.image i { background: #7a5af8; }
.bar.done i { background: var(--ok); }
.card-actions { display: flex; gap: 8px; margin-top: 16px; flex-wrap: wrap; }

/* 任务 */
.task-card { cursor: pointer; }
.task-card:hover { border-color: #cfd6e6; }
.progress { margin-top: 14px; }
.pill {
  display: inline-block;
  font-size: 12px;
  padding: 1px 8px;
  border-radius: 99px;
  background: #eef0f5;
  color: var(--muted);
}
.pill.written { background: #e6f7f0; color: var(--ok); }
.pill.failed { background: #fdeaea; color: var(--danger); }
.pill.queued, .pill.generating, .pill.generated, .pill.writing { background: #f2f6ff; color: var(--primary); }

.panel {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px;
  margin-top: 16px;
}
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th, td { text-align: left; padding: 10px 8px; border-bottom: 1px solid #f0f2f6; vertical-align: top; }
th { font-size: 12px; color: var(--muted); font-weight: 500; white-space: nowrap; }
td.title { max-width: 320px; word-break: break-word; }
tbody tr:hover { background: #fafbfe; }
.table-wrap { overflow-x: auto; }

/* 看板统计卡 */
.stat-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 10px; margin: 14px 0 8px; }
.stat { background: #f8f9fc; border: 1px solid var(--line); border-radius: 10px; padding: 10px 12px; }
.stat .k { font-size: 12px; color: var(--muted); }
.stat .v { font-size: 20px; font-weight: 700; margin-top: 2px; }

.risk { font-size: 12px; color: var(--muted); margin: 4px 0 0; padding-left: 16px; }
.risk .lv-高 { color: var(--danger); }
.risk .lv-中 { color: var(--warn); }
.empty { color: var(--muted); text-align: center; padding: 36px 0; font-size: 13px; }

/* 配对码 */
.pair-box { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
.pair-code {
  font: 700 24px/1 ui-monospace, Menlo, monospace;
  letter-spacing: 6px;
  color: var(--primary);
}

/* 弹窗 */
.modal {
  position: fixed;
  inset: 0;
  background: rgba(20, 26, 40, .45);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  z-index: 50;
}
.modal-card { width: 420px; max-width: 100%; max-height: 88vh; overflow-y: auto; background: #fff; border-radius: 14px; padding: 22px; }
.modal-card.wide { width: 900px; }
.modal-card h2 { margin-bottom: 16px; }
.field { margin-bottom: 14px; }
.field label { display: block; font-size: 13px; color: var(--muted); margin-bottom: 6px; }
.field .row { gap: 8px; }
.perm-grid { display: flex; flex-wrap: wrap; gap: 6px 16px; }
.perm-grid label {
  display: flex; align-items: center; gap: 6px;
  margin: 0; font-size: 13px; color: var(--text); font-weight: 400;
}
.perm-grid input { margin: 0; }
button:disabled { opacity: .45; cursor: not-allowed; }
.total { font-size: 15px; margin: 6px 0 18px; }
.total b { color: var(--primary); font-size: 20px; }

/* Toast */
.toast {
  position: fixed;
  left: 50%;
  bottom: 32px;
  transform: translateX(-50%) translateY(20px);
  background: #1c2230;
  color: #fff;
  padding: 10px 18px;
  border-radius: 8px;
  font-size: 13px;
  opacity: 0;
  pointer-events: none;
  transition: .2s;
  max-width: 80vw;
  z-index: 99;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }
.toast.error { background: #b42f2f; }

/* 后台子页签 */
.subnav {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  margin-top: 16px;
  border-bottom: 1px solid var(--line);
  padding-bottom: 10px;
}
.subnav-item {
  border: 1px solid transparent;
  background: none;
  color: var(--muted);
  padding: 7px 14px;
}
.subnav-item.active {
  border-color: var(--primary);
  color: var(--primary);
  background: #f2f6ff;
}
h3 { font-size: 15px; margin: 0; }

/* JSON / 大文本编辑器 */
.code-editor {
  width: 100%;
  min-height: 240px;
  resize: vertical;
  font: 12px/1.55 ui-monospace, Menlo, Consolas, monospace;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfcfe;
  color: var(--text);
}
.code-editor:focus { outline: none; border-color: var(--primary); background: #fff; }

@media (max-width: 640px) {
  .topbar { padding: 0 14px; gap: 12px; }
  .nav-item { padding: 8px 10px; }
  main { padding: 16px; }
  .cards { grid-template-columns: 1fr; }
}