:root {
  /* 品牌·朱砂红笔 */
  --accent: #C6452C;
  --accent-hover: #B23A23;
  --accent-soft: #FBEDE9;
  /* 纸墨基底 */
  --bg: #F4F1EA;
  --panel: #FFFFFF;
  --paper: #FFFFFF;
  --ink: #23211C;
  --ink-2: #57534A;
  --ink-3: #8A857A;
  --line: #E5E0D5;
  --line-2: #EFECE3;
  /* 类别色 */
  --c-typo: #D93025;      --c-typo-bg: rgba(217,48,37,.10);
  --c-grammar: #E8710A;   --c-grammar-bg: rgba(232,113,10,.12);
  --c-format: #2563EB;    --c-format-bg: rgba(37,99,235,.10);
  --c-math: #7C3AED;      --c-math-bg: rgba(124,58,237,.10);
  --c-consist: #DB2777;   --c-consist-bg: rgba(219,39,119,.10);
  --c-custom: #0D9488;    --c-custom-bg: rgba(13,148,136,.12);
  --ok: #1A7F37; --ok-bg: rgba(26,127,55,.09);
  --sans: "Noto Sans CJK SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --serif: "Noto Serif CJK SC", "Songti SC", "SimSun", serif;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html, body { height: 100%; }
body { font-family: var(--sans); background: var(--bg); color: var(--ink); overflow: hidden; font-size: 14px; }

.app { display: grid; grid-template-rows: 56px 1fr; height: 100vh; }

/* ───────── 通用按钮 ───────── */
.btn { border: none; cursor: pointer; font-family: inherit; font-size: 13px; font-weight: 600;
  border-radius: 9px; padding: 8px 16px; transition: background .15s, opacity .15s; }
.btn:disabled { opacity: .45; cursor: not-allowed; }
.btn-ghost { background: transparent; color: var(--ink-2); border: 1px solid var(--line); }
.btn-ghost:hover:not(:disabled) { background: var(--line-2); }
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover:not(:disabled) { background: var(--accent-hover); }

/* ───────── 顶栏 ───────── */
.topbar { display: flex; align-items: center; gap: 16px; padding: 0 20px;
  background: var(--panel); border-bottom: 1px solid var(--line); z-index: 10; }
.logo { display: flex; align-items: baseline; gap: 8px; user-select: none; }
.logo b { font-size: 19px; font-weight: 900; letter-spacing: .02em; }
.logo b i { font-style: normal; color: var(--accent); }
.logo span { font-size: 11px; color: var(--ink-3); letter-spacing: .14em; font-weight: 500; }
.filechip { display: flex; align-items: center; gap: 8px; background: var(--line-2);
  border-radius: 8px; padding: 6px 12px; font-size: 13px; color: var(--ink-2);
  max-width: 340px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.filechip .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--ok); flex-shrink: 0; }
.topbar .spacer { flex: 1; }

/* ───────── 居中视图（上传/配置）───────── */
.center-view { display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 22px; height: 100%; overflow-y: auto; padding: 40px 20px; }

.upload-card { width: min(560px, 92vw); background: var(--panel); border: 1.5px dashed #CFC9BB;
  border-radius: 16px; padding: 56px 40px; text-align: center; cursor: pointer;
  transition: border-color .15s, background .15s, transform .1s; }
.upload-card:hover, .upload-card.over { border-color: var(--accent); background: var(--accent-soft); }
.up-icon { color: var(--accent); margin-bottom: 14px; }
.up-title { font-size: 19px; font-weight: 800; margin-bottom: 6px; }
.up-sub { font-size: 13px; color: var(--ink-3); }
.up-feats { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px; }
.up-feats span { font-size: 12px; color: var(--ink-2); background: var(--panel);
  border: 1px solid var(--line); padding: 5px 13px; border-radius: 99px; }

.config-card { width: min(560px, 92vw); background: var(--panel); border: 1px solid var(--line);
  border-radius: 16px; padding: 28px 30px; box-shadow: 0 8px 28px rgba(35,33,28,.07); }
.cfg-title { font-size: 18px; font-weight: 800; }
.cfg-sub { font-size: 12.5px; color: var(--ink-3); margin: 4px 0 18px; }
.cfg-cats { display: flex; flex-wrap: wrap; gap: 9px; margin-bottom: 18px; }
.cat-check { display: inline-flex; align-items: center; gap: 7px; font-size: 13px; font-weight: 500;
  padding: 8px 14px; border-radius: 10px; border: 1px solid var(--line); color: var(--ink-2);
  cursor: pointer; user-select: none; transition: all .12s; }
.cat-check input { display: none; }
.cat-check .d { width: 8px; height: 8px; border-radius: 50%; }
.cat-check.on { border-color: var(--ink); background: var(--line-2); color: var(--ink); font-weight: 600; }
.cfg-label { font-size: 12.5px; color: var(--ink-2); font-weight: 600; margin-bottom: 7px; }
.rule-row { display: flex; align-items: center; gap: 8px; margin-bottom: 8px; }
.rule-no { width: 20px; height: 20px; flex-shrink: 0; border-radius: 50%; background: var(--line-2);
  color: var(--ink-3); font-size: 11.5px; font-weight: 700; display: flex; align-items: center; justify-content: center; }
.rule-row input { flex: 1; border: 1px solid var(--line); border-radius: 9px; padding: 8.5px 11px;
  font-family: inherit; font-size: 13px; color: var(--ink); outline: none; background: #FDFCFA; }
.rule-row input:focus { border-color: var(--accent); background: #fff; }
.rule-del { width: 26px; height: 26px; flex-shrink: 0; border: 1px solid var(--line); background: #fff;
  border-radius: 8px; color: var(--ink-3); font-size: 15px; line-height: 1; cursor: pointer; }
.rule-del:hover { border-color: var(--accent); color: var(--accent); background: var(--accent-soft); }
.rule-add { display: inline-flex; align-items: center; gap: 2px; border: 1px dashed #CFC9BB; background: transparent;
  border-radius: 9px; padding: 7px 13px; font-family: inherit; font-size: 12.5px; font-weight: 600;
  color: var(--ink-2); cursor: pointer; transition: all .12s; }
.rule-add:hover { border-color: var(--accent); color: var(--accent); background: var(--accent-soft); }
.cfg-actions { display: flex; justify-content: flex-end; gap: 10px; margin-top: 20px; }

/* ───────── 主体 ───────── */
.main { display: grid; grid-template-columns: 1fr 408px; min-height: 0; position: relative; }

/* 卡片 ↔ 原文 连线层 */
.connector { position: absolute; inset: 0; width: 100%; height: 100%; pointer-events: none; overflow: visible; }
.connector path { fill: none; stroke-width: 1.5; opacity: .5; stroke-dasharray: 5 4; stroke-linecap: round; }
.connector circle { opacity: .85; }

/* 文档画布 */
.canvas { overflow-y: auto; padding: 36px 48px 80px; scroll-behavior: smooth; }
.paper { max-width: 740px; margin: 0 auto; background: var(--paper);
  border: 1px solid var(--line); border-radius: 4px;
  box-shadow: 0 1px 2px rgba(35,33,28,.05), 0 8px 28px rgba(35,33,28,.08);
  padding: 64px 72px 80px; position: relative; }
.doc-body { font-family: var(--serif); font-size: 15.5px; line-height: 2.05; color: #2B2822; text-align: justify; }
.doc-body .doc-p { margin-bottom: 10px; text-indent: 2em; word-break: break-all; }
/* 表格渲染（原文档表格预览） */
.doc-tbl-wrap { margin: 12px 0; overflow-x: auto; }
.doc-table { width: 100%; border-collapse: collapse; font-size: 13.5px; line-height: 1.8; }
.doc-table td { border: 1px solid var(--line); padding: 6px 10px; vertical-align: top; }
.doc-table .doc-cell-p { margin: 0; text-indent: 0; }
/* 图片 / 文本框 / 页眉页脚脚注 */
.doc-img { display: block; max-width: 100%; margin: 8px auto; border-radius: 2px; }
.doc-textbox { display: inline-block; border: 1px dashed var(--line); border-radius: 4px;
  padding: 2px 8px; margin: 2px 4px; font-size: 13px; color: #6B655A; background: rgba(0,0,0,.02); }
.doc-extras { margin-top: 28px; padding-top: 14px; border-top: 1px dashed var(--line);
  font-size: 12.5px; color: #8A8478; }
.doc-extras .ex-sec { margin-bottom: 6px; }
.doc-extras .ex-t { font-weight: 600; margin-right: 8px; color: #6B655A; }
.doc-extras .ex-item { margin-right: 12px; }
/* 段落样式映射（Word Heading/标题） */
.doc-body .doc-h1 { font-size: 22px; font-weight: 700; text-indent: 0; margin: 18px 0 10px; }
.doc-body .doc-h2 { font-size: 19px; font-weight: 700; text-indent: 0; margin: 16px 0 8px; }
.doc-body .doc-h3 { font-size: 17px; font-weight: 600; text-indent: 0; margin: 14px 0 6px; }
.doc-body .doc-h4 { font-weight: 600; text-indent: 0; }
.doc-body .doc-h5 { font-weight: 600; text-indent: 0; }
.doc-body .doc-h6 { font-weight: 600; text-indent: 0; }

/* 高亮标注 */
mark.hl { padding: 1.5px 1px; border-radius: 2px; border-bottom: 2px solid; background: transparent; cursor: pointer; }
mark.hl.typo    { background: var(--c-typo-bg);    border-color: var(--c-typo); }
mark.hl.grammar { background: var(--c-grammar-bg); border-color: var(--c-grammar); }
mark.hl.format  { background: var(--c-format-bg);  border-color: var(--c-format); }
mark.hl.math    { background: var(--c-math-bg);    border-color: var(--c-math); }
mark.hl.consist { background: var(--c-consist-bg); border-color: var(--c-consist); }
mark.hl.custom  { background: var(--c-custom-bg);  border-color: var(--c-custom); }
mark.hl.accepted { background: var(--ok-bg); border-color: var(--ok); }
mark.hl.accepted .hl-old { color: #9A948A; text-decoration: line-through; }
mark.hl.accepted .hl-new { text-decoration: none; color: var(--ok); font-weight: 600; margin-left: 2px; }
mark.hl.rejected { background: rgba(35,33,28,.06); border-color: #B8B2A6; color: #9A948A; }
mark.hl.flash { box-shadow: 0 0 0 3px rgba(198,69,44,.30); animation: flash 1.2s ease; }
@keyframes flash { 0%, 100% { box-shadow: 0 0 0 3px rgba(198,69,44,.30); } 50% { box-shadow: 0 0 0 6px rgba(198,69,44,.15); } }

/* 来源徽标：规则 / AI / 选区 */
.src-tag { font-size: 10.5px; padding: 1px 6px; border-radius: 8px; border: 1px solid var(--line); color: #8A8478; }
.src-tag.rule { color: var(--ok); border-color: var(--ok); }
.src-tag.region { color: var(--c-format); border-color: var(--c-format); }

/* 上传解析遮罩：阻塞式，进度条反馈 */
.upload-loading { position: fixed; inset: 0; z-index: 100; background: rgba(35, 33, 28, .42);
  display: flex; align-items: center; justify-content: center; backdrop-filter: blur(1.5px); }
.ul-card { background: var(--paper); border: 1px solid var(--line); border-radius: 14px;
  box-shadow: 0 18px 50px rgba(35, 33, 28, .25); padding: 30px 46px; width: 320px; text-align: center; }
.ul-text { font-size: 16px; font-weight: 600; color: var(--ink); margin-bottom: 16px; }
.ul-track { height: 8px; border-radius: 6px; background: var(--line-2); overflow: hidden; }
.ul-bar { height: 100%; border-radius: 6px; background: var(--accent);
  transition: width .25s ease; }
.ul-sub { margin-top: 10px; font-size: 12.5px; color: #8A8478; }
.fade-enter-active, .fade-leave-active { transition: opacity .18s ease; }
.fade-enter-from, .fade-leave-to { opacity: 0; }

/* 上传解析遮罩 end */

/* 选区浮动工具条 */
.sel-pop { position: absolute; z-index: 30; }
.sel-toolbar { display: inline-flex; gap: 4px; background: var(--ink); border-radius: 10px; padding: 5px;
  box-shadow: 0 6px 20px rgba(35,33,28,.28); }
.sel-toolbar button { border: none; cursor: pointer; font-family: inherit; font-size: 12.5px; font-weight: 600;
  color: #F5F2EC; background: transparent; border-radius: 7px; padding: 6px 12px; }
.sel-toolbar button.on { background: var(--accent); color: #fff; }
.sel-card { margin-top: 8px; width: 330px; background: #fff; border: 1px solid var(--line); border-radius: 12px;
  box-shadow: 0 10px 34px rgba(35,33,28,.20); padding: 12px; }
.sel-card .hint { font-size: 11.5px; color: var(--ink-3); margin-bottom: 7px; }
.sel-card textarea { width: 100%; border: 1px solid var(--line); border-radius: 8px; padding: 8px 10px;
  font-family: inherit; font-size: 13px; resize: none; height: 52px; color: var(--ink); outline: none; }
.sel-card textarea:focus { border-color: var(--accent); }
.sel-card .row { display: flex; align-items: center; gap: 6px; margin-top: 8px; flex-wrap: wrap; }
.preset { font-size: 11.5px; padding: 3.5px 9px; border-radius: 99px; border: 1px solid var(--line);
  background: var(--line-2); color: var(--ink-2); cursor: pointer; }
.preset:hover { border-color: var(--accent); color: var(--accent); }
.sel-card .send { margin-left: auto; }
.sel-card .send .btn { padding: 6px 14px; font-size: 12.5px; }

/* ───────── 问题工作台 ───────── */
.workbench { background: var(--panel); border-left: 1px solid var(--line); display: flex; flex-direction: column; min-height: 0; }
.wb-head { padding: 16px 18px 12px; border-bottom: 1px solid var(--line-2); }
.wb-stats { display: flex; align-items: baseline; gap: 8px; margin-bottom: 12px; }
.wb-stats .num { font-size: 30px; font-weight: 800; font-variant-numeric: tabular-nums; letter-spacing: -.01em; }
.wb-stats .lbl { color: var(--ink-3); font-size: 13px; }
.wb-stats .done { margin-left: auto; font-size: 12px; color: var(--ink-3); }
.wb-stats .done b { color: var(--ok); font-weight: 700; }
.filters { display: flex; flex-wrap: wrap; gap: 6px; }
.chip { display: inline-flex; align-items: center; gap: 5px; font-size: 12px; font-weight: 500;
  padding: 4.5px 10px; border-radius: 99px; border: 1px solid var(--line); color: var(--ink-2);
  background: #fff; cursor: pointer; }
.chip .d { width: 7px; height: 7px; border-radius: 50%; }
.chip b { font-weight: 700; color: var(--ink-3); font-variant-numeric: tabular-nums; }
.chip.on { border-color: var(--ink); color: var(--ink); background: var(--line-2); font-weight: 600; }

.cards { flex: 1; overflow-y: auto; padding: 14px; display: flex; flex-direction: column; gap: 10px; }
.cards-empty { text-align: center; color: var(--ink-3); font-size: 13px; padding: 48px 20px; }

.card { border: 1px solid var(--line); border-radius: 12px; background: #fff; padding: 13px 14px;
  transition: box-shadow .15s, border-color .15s; cursor: pointer; }
.card:hover { box-shadow: 0 3px 12px rgba(35,33,28,.08); }
.card.active { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(198,69,44,.13); }
.card.is-accepted { background: #FBFDFB; border-color: #D7E8D9; }
.card.is-rejected { opacity: .62; }
.card-top { display: flex; align-items: center; gap: 8px; margin-bottom: 9px; }
.badge { display: inline-flex; align-items: center; gap: 5px; font-size: 11.5px; font-weight: 700;
  padding: 3px 9px; border-radius: 6px; white-space: nowrap; }
.badge .d { width: 6px; height: 6px; border-radius: 50%; background: currentColor; }
.badge.typo    { color: var(--c-typo);    background: var(--c-typo-bg); }
.badge.grammar { color: var(--c-grammar); background: var(--c-grammar-bg); }
.badge.format  { color: var(--c-format);  background: var(--c-format-bg); }
.badge.math    { color: var(--c-math);    background: var(--c-math-bg); }
.badge.consist { color: var(--c-consist); background: var(--c-consist-bg); }
.badge.custom  { color: var(--c-custom);  background: var(--c-custom-bg); }
.loc { font-size: 11.5px; color: var(--ink-3); font-variant-numeric: tabular-nums; }
.status-tag { margin-left: auto; font-size: 11.5px; font-weight: 700; }
.status-tag.ok { color: var(--ok); }
.status-tag.no { color: var(--ink-3); }

.fix { font-size: 13.5px; line-height: 1.75; margin-bottom: 7px; }
.fixs .fix:not(:first-child) { margin-top: 9px; padding-top: 7px; border-top: 1px dashed var(--line-2); }
.fix .old { color: #B4402E; text-decoration: line-through; text-decoration-color: rgba(180,64,46,.5);
  background: var(--c-typo-bg); border-radius: 3px; padding: 0 3px; }
.fix .arrow { color: var(--ink-3); margin: 0 5px; font-size: 12px; }
.fix .new { color: var(--ok); font-weight: 600; background: var(--ok-bg); border-radius: 3px; padding: 0 3px; }
.explain { font-size: 12px; color: var(--ink-3); line-height: 1.6; margin-bottom: 10px; }
.card-actions { display: flex; gap: 7px; }
.act { border: 1px solid var(--line); background: #fff; border-radius: 8px; font-family: inherit;
  font-size: 12.5px; font-weight: 600; padding: 6px 14px; cursor: pointer; color: var(--ink-2); }
.act:hover { background: var(--line-2); }
.act.primary { background: var(--ink); border-color: var(--ink); color: #fff; }
.act.primary:hover { background: #000; }
.edit-box { margin-top: 9px; }
.edit-box textarea { width: 100%; box-sizing: border-box; border: 1px solid var(--accent); border-radius: 8px;
  padding: 8px 10px; font-family: inherit; font-size: 13px; line-height: 1.7; outline: none;
  color: var(--ink); background: #FFFDFC; resize: vertical; min-height: 76px; }
.edit-box .edit-actions { display: flex; align-items: center; gap: 7px; margin-top: 7px; }
.edit-box .edit-hint { font-size: 11px; color: #9A948A; }

.wb-foot { border-top: 1px solid var(--line-2); padding: 11px 18px; display: flex; align-items: center;
  gap: 14px; font-size: 12px; color: var(--ink-3); }
.wb-foot b { font-variant-numeric: tabular-nums; font-weight: 700; }
.wb-foot .ok b { color: var(--ok); }
.wb-foot .spacer { flex: 1; }
.progress-mini { width: 110px; height: 5px; background: var(--line-2); border-radius: 99px; overflow: hidden; }
.progress-mini i { display: block; height: 100%; background: var(--accent); border-radius: 99px; transition: width .3s; }

/* 校对进度浮标 */
.proof-pill { position: fixed; left: 24px; bottom: 22px; background: var(--ink); color: #F5F2EC;
  border-radius: 11px; padding: 11px 16px; font-size: 13px; display: flex; align-items: center; gap: 10px;
  box-shadow: 0 8px 26px rgba(35,33,28,.30); z-index: 50; }
.spin { width: 14px; height: 14px; border: 2px solid rgba(245,242,236,.3); border-top-color: #F5F2EC;
  border-radius: 50%; animation: spin .8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

/* toast */
.toast { position: fixed; left: 50%; bottom: 22px; transform: translateX(-50%); background: var(--ink); color: #F5F2EC;
  border-radius: 11px; padding: 11px 16px; font-size: 13px; display: flex; align-items: center; gap: 9px;
  box-shadow: 0 8px 26px rgba(35,33,28,.30); z-index: 60; }
.toast.err { background: #7F1D1D; }
.toast .tick { width: 19px; height: 19px; border-radius: 50%; background: var(--ok); color: #fff;
  display: flex; align-items: center; justify-content: center; font-size: 11px; font-weight: 900; flex-shrink: 0; }
.toast.err .tick { background: #DC2626; }
.toast b { font-variant-numeric: tabular-nums; }
.toast-enter-active, .toast-leave-active { transition: all .25s ease; }
.toast-enter-from, .toast-leave-to { opacity: 0; transform: translateX(-50%) translateY(12px); }

/* 窄屏兜底 */
@media (max-width: 1080px) {
  .main { grid-template-columns: 1fr 340px; }
  .canvas { padding: 24px; }
  .paper { padding: 40px 36px; }
}