:root {
  color-scheme: light;
  --canvas: #f4f0e8;
  --surface: #fbfaf6;
  --surface-2: #f1ede3;
  --ink: #241c12;
  --mute: #766c5c;
  --faint: #a89e8a;
  --line: #e2dccd;
  --line-strong: #d6cdb9;
  --accent: #b23a2b;
  --accent-strong: #9c3022;
  --accent-soft: #f6e6df;
  --on-accent: #fbeede;
  --taboo: #212831;
  --radius: 6px;
  --sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", "Source Han Sans SC", sans-serif;
  --serif: "Times New Roman", Times, "Songti SC", "STSong", SimSun, "宋体", serif;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--canvas);
  color: var(--ink);
  font: 14px/1.6 var(--sans);
}
button, input, select, textarea { font: inherit; color: inherit; }
[hidden] { display: none !important; }
a { color: var(--accent); }

.wrap { max-width: 1320px; margin: 0 auto; padding: 0 24px; }

.top { padding: 28px 0 18px; }
.top h1 { margin: 0; font-size: 24px; font-weight: 600; letter-spacing: .02em; }
.lede { margin: 4px 0 0; color: var(--mute); }

.layout {
  display: grid;
  grid-template-columns: minmax(360px, 420px) minmax(0, 1fr);
  gap: 20px;
  align-items: start;
  padding-bottom: 32px;
}

.panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px 20px 20px;
}
.panel + .panel { margin-top: 16px; }
.sticky { position: sticky; top: 16px; }
.panel h2 { margin: 0 0 12px; font-size: 15px; font-weight: 600; display: flex; align-items: center; gap: 8px; }
.step {
  display: inline-grid; place-items: center;
  width: 20px; height: 20px; border-radius: 50%;
  border: 1px solid var(--line-strong); color: var(--mute);
  font-size: 12px; font-weight: 500;
}

textarea#paste {
  width: 100%;
  min-height: 220px;
  resize: vertical;
  padding: 10px 12px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: #fff;
  font: 12.5px/1.5 ui-monospace, SFMono-Regular, Menlo, Consolas, "PingFang SC", monospace;
  tab-size: 12;
  white-space: pre;
  overflow: auto;
}
textarea:focus, input:focus, select:focus { outline: 2px solid var(--accent-soft); outline-offset: 0; border-color: var(--accent); }

.row-between { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.panel .row-between h2 { margin-bottom: 4px; }
.demos { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; margin-top: 10px; }
.chip {
  border: 1px solid var(--line-strong); background: var(--surface);
  border-radius: 999px; padding: 1px 10px; font-size: 12.5px; cursor: pointer; color: var(--ink);
}
.chip:hover { border-color: var(--accent); color: var(--accent); }
.link { background: none; border: 0; padding: 0; color: var(--mute); cursor: pointer; font-size: 13px; text-decoration: underline; text-underline-offset: 3px; }
.link:hover { color: var(--accent); }
.muted { color: var(--mute); }
.privacy { margin: 8px 0 0; color: var(--faint); font-size: 12.5px; }

.detected {
  margin-top: 12px; padding: 8px 10px;
  background: var(--surface-2); border-radius: var(--radius);
  display: flex; align-items: center; gap: 10px;
}
.detected label { color: var(--mute); font-size: 13px; white-space: nowrap; }
.detected select { flex: 1; min-width: 0; }

select, input[type=text], #note {
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: #fff;
  padding: 5px 8px;
}

.field { display: flex; align-items: center; gap: 10px; margin: 10px 0; flex-wrap: wrap; }
.label { width: 56px; flex: none; color: var(--mute); font-size: 13px; }
.hint { margin: 4px 0 8px; color: var(--faint); font-size: 12.5px; }
.hint.inline { margin: 0; }
#preset-hint { margin-left: 66px; margin-top: -4px; }

.seg { display: inline-flex; background: var(--surface-2); border-radius: var(--radius); padding: 2px; gap: 2px; }
.seg button {
  border: 0; background: transparent; padding: 4px 12px; border-radius: 4px;
  cursor: pointer; color: var(--mute); font-size: 13px;
}
.seg button[aria-checked=true] { background: var(--surface); color: var(--ink); box-shadow: 0 0 0 1px var(--line-strong); }

.check { display: flex; align-items: flex-start; gap: 8px; margin: 8px 0; cursor: pointer; font-size: 13.5px; }
.check input { margin: 3px 0 0; accent-color: var(--accent); }
.check.disabled { color: var(--faint); cursor: default; }
.kind-opts:not(:empty) { margin-top: 4px; }

.title-field input#title { flex: 1; min-width: 0; }
.num-input { width: 52px; text-align: center; }
.note-field { align-items: flex-start; }
.note-field textarea { flex: 1; min-width: 0; resize: vertical; line-height: 1.5; }

/* 预览纸面 */
.paper-wrap { background: var(--surface-2); border-radius: var(--radius); padding: 16px; overflow-x: auto; }
.paper {
  background: #fff;
  min-height: 240px;
  padding: 36px 40px 40px 24px;
  box-shadow: 0 0 0 1px var(--line);
  font-family: var(--serif);
  color: #000;
  line-height: 1.35;
}
.paper .empty { font-family: var(--sans); color: var(--faint); text-align: center; margin: 80px 0; }
.paper .tt { margin: 0 0 4px 28px; }
.paper .tt p { margin: 0; }
.paper .tt.center { text-align: center; }
.paper .notes { margin: 6px 0 0 28px; }
.paper .notes p { margin: 0; }

.tbl-scroll { overflow-x: auto; }
table.tlt { border-collapse: collapse; width: 100%; }
table.tlt td { padding: 3px 7px; vertical-align: middle; white-space: nowrap; }
table.tlt td.c { outline: none; }
table.tlt td.c:hover { background: #faf6ee; }
table.tlt td.c:focus { background: var(--accent-soft); }
table.tlt td.r-top { border-top: 1.5pt solid #000; }
table.tlt td.r-mid { border-bottom: .75pt solid #000; }
table.tlt td.r-bot { border-bottom: 1.5pt solid #000; }
table.tlt td.lbl { font-style: normal; }

/* 删除控件：鼠标移到表上才出现 */
table.tlt .ctl { width: 28px; padding: 0; text-align: center; border: 0 !important; background: none !important; }
table.tlt thead.ctl-row td { height: 22px; padding: 0; text-align: center; }
.x {
  width: 20px; height: 20px; padding: 0; border: 0; border-radius: 50%;
  background: transparent; color: var(--faint); cursor: pointer;
  display: inline-grid; place-items: center; opacity: 0; transition: opacity .12s;
}
table.tlt:hover .x, .x:focus-visible { opacity: 1; }
.x:hover { background: var(--surface-2); color: var(--taboo); }
.ico { width: 10px; height: 10px; stroke: currentColor; stroke-width: 1.6; fill: none; vertical-align: -1px; }
@media (hover: none) { .x { opacity: .7; } }

.export { display: flex; align-items: center; gap: 10px; margin-top: 16px; flex-wrap: wrap; }
.btn {
  border: 1px solid var(--line-strong); background: var(--surface);
  border-radius: var(--radius); padding: 8px 16px; cursor: pointer; font-size: 14px;
}
.btn:hover:not(:disabled) { border-color: var(--ink); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: var(--on-accent); }
.btn.primary:hover:not(:disabled) { background: var(--accent-strong); border-color: var(--accent-strong); }
.btn:disabled { opacity: .45; cursor: default; }
.lock-status { color: var(--mute); font-size: 13px; }
.mobile-only { display: none; }

.foot { border-top: 1px solid var(--line); padding: 16px 0 28px; color: var(--mute); font-size: 13px; }

/* 激活码弹窗 */
.modal { position: fixed; inset: 0; background: rgba(36, 28, 18, .42); display: grid; place-items: center; padding: 16px; z-index: 10; }
.modal-box { background: var(--surface); border-radius: 8px; padding: 22px 24px; width: 100%; max-width: 400px; border: 1px solid var(--line); }
.modal-box h3 { margin: 0 0 6px; font-size: 16px; }
.modal-box p { margin: 0 0 14px; font-size: 13.5px; }
#code { width: 100%; font: 16px/1.4 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; letter-spacing: .06em; padding: 8px 10px; }
.code-msg { min-height: 20px; margin: 6px 0 0 !important; color: var(--taboo); font-size: 13px; }
.code-msg.bad::before { content: ""; display: inline-block; width: 6px; height: 6px; border-radius: 50%; background: var(--taboo); margin-right: 6px; vertical-align: 2px; }
.modal-actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 10px; }

.toast {
  position: fixed; left: 50%; bottom: 28px; transform: translateX(-50%);
  background: var(--ink); color: var(--surface); padding: 8px 16px; border-radius: var(--radius); font-size: 13.5px; z-index: 20;
}

@media (max-width: 900px) {
  .wrap { padding: 0 16px; }
  .layout { grid-template-columns: minmax(0, 1fr); }
  .sticky { position: static; }
  .paper { padding: 24px 16px 28px 4px; }
  .mobile-only { display: block; }
  textarea#paste { min-height: 160px; }
}