:root {
  --bg: #f5f6f8;
  --card: #ffffff;
  --ink: #1b1f27;
  --ink-2: #5b6473;
  --ink-3: #8b93a1;
  --line: #e3e6ec;
  --accent: #2f6df6;
  --accent-soft: #eaf1ff;
  --ok: #16a34a;
  --ok-soft: #e8f7ee;
  --warn: #d97706;
  --warn-soft: #fdf3e3;
  --err: #dc2626;
  --err-soft: #fdecec;
  --radius: 12px;
  --shadow: 0 1px 2px rgba(16, 24, 40, .05), 0 8px 24px -12px rgba(16, 24, 40, .18);
}

* { box-sizing: border-box; }

/* 浏览器默认的 [hidden]{display:none} 属于 UA 样式，会被下面任何
   .xxx{display:flex/grid} 的作者样式盖掉。不写这条，带 hidden 的面板会一直显示。 */
[hidden] { display: none !important; }

html, body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 14px/1.55 "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", system-ui, -apple-system, "Segoe UI", sans-serif;
  -webkit-font-smoothing: antialiased;
}

/* ---------- 顶栏 ---------- */
.topbar {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 16px 24px; background: var(--card); border-bottom: 1px solid var(--line);
  position: sticky; top: 0; z-index: 30; flex-wrap: wrap;
}
.brand { display: flex; align-items: center; gap: 14px; }
.logo { font-size: 28px; line-height: 1; }
.topbar h1 { margin: 0; font-size: 17px; font-weight: 650; letter-spacing: .2px; }
.sub { margin: 3px 0 0; font-size: 12.5px; color: var(--ink-3); }
.topbar-right { display: flex; align-items: center; gap: 10px; }
.pill {
  font-size: 12px; color: var(--ink-2); background: var(--bg);
  border: 1px solid var(--line); border-radius: 999px; padding: 4px 11px; white-space: nowrap;
}

button { font: inherit; cursor: pointer; border-radius: 9px; transition: .15s ease; }
button:disabled { cursor: not-allowed; opacity: .5; }
.ghost { background: var(--card); border: 1px solid var(--line); color: var(--ink-2); padding: 7px 13px; }
.ghost:hover:not(:disabled) { border-color: #c9cfda; color: var(--ink); }
.primary { background: var(--accent); border: 1px solid var(--accent); color: #fff; padding: 9px 18px; font-weight: 550; }
.primary:hover:not(:disabled) { background: #2559d8; }
.primary.big { width: 100%; padding: 12px; font-size: 15px; }
.danger { background: none; border: none; color: var(--ink-3); font-size: 18px; line-height: 1; padding: 4px 8px; }
.danger:hover { color: var(--err); }

/* ---------- 用量条 ---------- */
.usage {
  display: flex; align-items: center; gap: 26px; flex-wrap: wrap;
  padding: 9px 24px; background: #fbfcfe; border-bottom: 1px solid var(--line);
  font-size: 12.5px; color: var(--ink-2); position: sticky; top: 0; z-index: 28;
}
.usage-group { display: flex; align-items: center; gap: 7px; }
.usage-label { color: var(--ink-3); }
.usage-dim { color: var(--ink-3); }
.usage b { font-weight: 650; color: var(--ink); font-variant-numeric: tabular-nums; }
.usage-bar { width: 92px; height: 6px; background: var(--line); border-radius: 99px; overflow: hidden; }
.usage-bar > i { display: block; height: 100%; width: 0; background: var(--ok); border-radius: 99px; transition: width .3s ease; }
.usage-bar > i.warn { background: var(--warn); }
.usage-bar > i.hot { background: var(--err); }
.usage-note { font-style: normal; color: var(--ink-3); cursor: help; }
.usage-refresh { margin-left: auto; background: none; border: 1px solid var(--line); color: var(--ink-3); border-radius: 7px; padding: 2px 9px; font-size: 13px; }
.usage-refresh:hover { color: var(--ink); border-color: #c9cfda; }
.usage.exhausted { background: var(--err-soft); border-bottom-color: #f5c2c2; }
.usage.exhausted b { color: #7f1d1d; }

/* ---------- 口令锁屏 ---------- */
.lock {
  position: fixed; inset: 0; z-index: 200;
  background: rgba(20, 26, 36, .55); backdrop-filter: blur(3px);
  display: flex; align-items: center; justify-content: center; padding: 20px;
}
.lock-card {
  background: #fff; border-radius: 16px; padding: 34px 30px 26px; width: 340px; max-width: 100%;
  text-align: center; box-shadow: 0 24px 60px -20px rgba(0,0,0,.4);
}
.lock-icon { font-size: 34px; }
.lock-card h2 { margin: 12px 0 6px; font-size: 17px; font-weight: 650; }
.lock-card p { margin: 0 0 20px; font-size: 13px; color: var(--ink-3); line-height: 1.6; }
.lock-card input {
  width: 100%; padding: 11px 13px; border: 1px solid var(--line); border-radius: 9px;
  font: inherit; text-align: center; letter-spacing: 2px; outline: none; margin-bottom: 12px;
}
.lock-card input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.lock-err { margin-top: 12px; font-size: 12.5px; color: var(--err); min-height: 18px; }

/* ---------- 设置面板 ---------- */
.settings {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 16px;
  padding: 18px 24px; background: var(--card); border-bottom: 1px solid var(--line);
}
.field { display: flex; flex-direction: column; gap: 6px; }
.field label { font-size: 13px; font-weight: 550; color: var(--ink-2); }
.hint { font-weight: 400; color: var(--ink-3); font-size: 12px; }
.field input[type=text], .field input[type=password], .field select {
  padding: 8px 11px; border: 1px solid var(--line); border-radius: 8px;
  font: inherit; background: #fff; color: var(--ink); outline: none;
}
.field input:focus, .field select:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.check { display: flex; align-items: center; gap: 8px; font-weight: 400; color: var(--ink-2); cursor: pointer; }
.check input { width: 16px; height: 16px; accent-color: var(--accent); }
.tip { grid-column: 1 / -1; margin: 0; font-size: 12.5px; color: var(--ink-3); }

/* ---------- 任务区 ---------- */
main { padding: 22px 24px 8px; display: flex; flex-direction: column; gap: 20px; max-width: 1180px; margin: 0 auto; }

.task {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: var(--shadow); overflow: hidden;
}
.task-head {
  display: flex; align-items: center; gap: 12px;
  padding: 13px 16px; border-bottom: 1px solid var(--line); background: #fcfcfd;
}
.task-title { font-weight: 600; font-size: 14.5px; }
.task-meta { font-size: 12.5px; color: var(--ink-3); margin-left: auto; }
.task-body { padding: 16px; display: flex; flex-direction: column; gap: 14px; }

/* 拖拽区 */
.drop {
  border: 2px dashed #cfd6e2; border-radius: 11px; background: #fafbfd;
  padding: 26px 18px; text-align: center; cursor: pointer; transition: .16s ease;
}
.drop:hover { border-color: var(--accent); background: var(--accent-soft); }
.drop.over { border-color: var(--accent); background: var(--accent-soft); transform: scale(1.006); }
.drop.locked { cursor: default; opacity: .55; padding: 14px; }
.drop.locked:hover { border-color: #cfd6e2; background: #fafbfd; }
.drop-icon { font-size: 26px; }
.drop-text { margin-top: 6px; font-size: 13.5px; color: var(--ink-2); }
.drop-text b { color: var(--accent); }
.drop-sub { margin-top: 3px; font-size: 12px; color: var(--ink-3); }

/* 文件列表 */
.files { display: flex; flex-direction: column; gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: 9px; overflow: hidden; max-height: 340px; overflow-y: auto; }
.file { display: flex; align-items: center; gap: 10px; padding: 8px 12px; background: #fff; font-size: 13px; }
.file-icon { flex: none; width: 18px; text-align: center; }
.file-name { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.file-name .renamed { color: var(--ok); font-weight: 500; }
.file-status { flex: none; font-size: 12px; color: var(--ink-3); white-space: nowrap; }
.file-rm {
  flex: none; background: none; border: none; color: #c3c9d4; font-size: 13px;
  line-height: 1; padding: 2px 4px; border-radius: 5px;
}
.file-rm:hover { color: var(--err); background: var(--err-soft); }
.file-status.ok { color: var(--ok); }
.file-status.err { color: var(--err); }
.file-status.run { color: var(--accent); }
.spin { display: inline-block; width: 11px; height: 11px; border: 2px solid var(--accent-soft); border-top-color: var(--accent); border-radius: 50%; animation: spin .7s linear infinite; vertical-align: -1px; }
@keyframes spin { to { transform: rotate(360deg); } }

/* 进度条 */
.progress-wrap { display: flex; flex-direction: column; gap: 6px; }
.progress-top { display: flex; justify-content: space-between; font-size: 12.5px; color: var(--ink-2); }
.bar { height: 8px; background: var(--line); border-radius: 99px; overflow: hidden; }
.bar > i { display: block; height: 100%; width: 0; background: linear-gradient(90deg, #4b83ff, var(--accent)); border-radius: 99px; transition: width .28s ease; }
.bar.done > i { background: linear-gradient(90deg, #22c55e, var(--ok)); }
.bar.err > i { background: var(--err); }

/* 结果 */
.result { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; background: var(--ok-soft); border: 1px solid #c7ead5; border-radius: 10px; padding: 12px 14px; }
.result-text { font-size: 13px; color: #14532d; flex: 1; min-width: 200px; }
.result-text b { font-weight: 650; }
.summary-list { display: flex; flex-direction: column; gap: 4px; font-size: 12.5px; color: var(--ink-2); }
.summary-list code { background: var(--bg); border: 1px solid var(--line); border-radius: 5px; padding: 1px 5px; font-size: 12px; }
.warnbox { background: var(--warn-soft); border: 1px solid #f3d9a8; border-radius: 10px; padding: 11px 14px; font-size: 12.5px; color: #7c4a03; }
.warnbox ul { margin: 6px 0 0; padding-left: 18px; }
.errbox { background: var(--err-soft); border: 1px solid #f5c2c2; border-radius: 10px; padding: 11px 14px; font-size: 13px; color: #7f1d1d; }

.stage { font-size: 12.5px; color: var(--ink-3); }

/* ---------- 空状态 ---------- */
.empty-state { display: flex; justify-content: center; padding: 46px 24px 70px; }
.empty-inner { text-align: center; color: var(--ink-3); }
.empty-icon { font-size: 44px; }
.empty-inner h2 { margin: 10px 0 6px; font-size: 16px; color: var(--ink-2); font-weight: 600; }
.empty-inner p { margin: 0 0 18px; font-size: 13px; }

/* ---------- 全页拖拽提示 ---------- */
body.dragging::after {
  content: "松开鼠标即可新建任务";
  position: fixed; inset: 12px; border: 3px dashed var(--accent); border-radius: 16px;
  background: rgba(47, 109, 246, .06); color: var(--accent); font-size: 17px; font-weight: 600;
  display: flex; align-items: center; justify-content: center; pointer-events: none; z-index: 90;
}

/* ---------- 页脚 / 提示 ---------- */
.footer {
  display: flex; justify-content: space-between; gap: 14px; flex-wrap: wrap;
  padding: 18px 24px 34px; font-size: 12.5px; color: var(--ink-3); max-width: 1180px; margin: 0 auto;
}
.dim { color: #a8afbb; }

.toast-wrap { position: fixed; right: 18px; bottom: 18px; display: flex; flex-direction: column; gap: 8px; z-index: 100; }
.toast {
  background: #1f2530; color: #fff; padding: 10px 15px; border-radius: 9px;
  font-size: 13px; box-shadow: 0 10px 30px -10px rgba(0,0,0,.45); max-width: 380px;
  animation: pop .22s ease;
}
.toast.err { background: #b91c1c; }
.toast.ok { background: #15803d; }
@keyframes pop { from { opacity: 0; transform: translateY(8px); } }