:root {
  --bg: #f6f8fa;
  --card: #ffffff;
  --border: #d0d7de;
  --text: #1f2328;
  --muted: #57606a;
  --accent: #0969da;
  --accent-light: #ddf4ff;
  --danger: #cf222e;
}
* { box-sizing: border-box; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
               "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  line-height: 1.6;
}
.wrap { max-width: 880px; margin: 0 auto; padding: 28px 20px 60px; }
header h1 { margin: 0 0 4px; font-size: 26px; }
.sub { color: var(--muted); margin: 0 0 24px; }
section { margin: 32px 0 0; }
h2 { font-size: 17px; border-bottom: 1px solid var(--border); padding-bottom: 8px; }

/* 上传区 */
.dropzone {
  border: 2px dashed var(--border); border-radius: 12px; background: var(--card);
  padding: 44px 20px; text-align: center; cursor: pointer; transition: border-color .15s;
}
.dropzone:hover, .dropzone.over { border-color: var(--accent); background: var(--accent-light); }
.dz-big { font-size: 18px; margin: 0 0 6px; }
.dz-small { color: var(--muted); font-size: 13px; margin: 0; }

.progress { margin-top: 18px; }
.bar { height: 10px; background: var(--border); border-radius: 6px; overflow: hidden; }
.bar span { display: block; height: 100%; width: 0; background: var(--accent); transition: width .2s; }
.progress p { color: var(--muted); font-size: 13px; margin: 8px 0 0; }

.hidden { display: none; }
.results ul { list-style: none; padding: 0; }
.results li { padding: 6px 0; }

/* 处理中面板 */
.pending ul { list-style: none; padding: 0; margin: 0; }
.pj {
  padding: 9px 12px; margin-bottom: 8px; background: var(--card);
  border: 1px solid var(--border); border-radius: 8px;
}
.pj-name { font-size: 14px; font-weight: 500; }
.pj-msg { color: var(--muted); font-size: 12px; font-weight: 400; margin-left: 6px; }
.pj .bar { margin-top: 7px; height: 8px; }
.pj.error { border-color: rgba(207,34,46,.4); }
.pj.error .pj-name, .pj.error .pj-msg { color: var(--danger); }

/* 列表 */
.list { width: 100%; border-collapse: collapse; font-size: 14px; background: var(--card); }
.list th, .list td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--border); }
.list th { color: var(--muted); font-weight: 600; }
.fname { font-family: ui-monospace, SFMono-Regular, Consolas, monospace; word-break: break-all; }
.title { font-weight: 600; word-break: break-all; }
.cat {
  font-size: 12px; color: var(--muted); white-space: nowrap;
  background: var(--accent-light); border-radius: 4px; padding: 1px 7px;
}
.empty { color: var(--muted); }

.ops { white-space: nowrap; }
.btn {
  display: inline-block; margin: 0 2px; padding: 4px 12px; font-size: 13px;
  border: 1px solid var(--border); border-radius: 6px; cursor: pointer;
  color: var(--text); background: #f6f8fa; text-decoration: none;
}
.btn:hover { background: var(--accent-light); border-color: rgba(9,105,218,.4); }
.btn.danger { color: var(--danger); }
.btn.danger:hover { background: #ffebe9; }

/* 预览 */
.subhead { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.subhead h1 { font-size: 18px; font-family: ui-monospace, monospace; }
.titlerow { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.titledit {
  font-size: 17px; font-weight: 600; padding: 5px 9px; min-width: 260px;
  border: 1px solid var(--border); border-radius: 6px; background: var(--card);
}
.titledit:focus { border-color: var(--accent); outline: none; }
.catbadge {
  font-size: 12px; color: var(--muted); white-space: nowrap;
  background: var(--accent-light); border-radius: 4px; padding: 2px 8px;
}
.orig { margin: 24px 0; text-align: center; }
.orig img { max-width: 100%; max-height: 420px; border: 1px solid var(--border); border-radius: 8px; background: #fff; }
.orig figcaption { color: var(--muted); font-size: 13px; margin-top: 6px; }

.md-content {
  background: var(--card); border: 1px solid var(--border); border-radius: 10px;
  padding: 24px 28px; margin-top: 20px;
}
.md-content h1, .md-content h2, .md-content h3 { line-height: 1.3; margin-top: 1.4em; }
.md-content h1 { border-bottom: 1px solid var(--border); padding-bottom: .3em; }
.md-content a { color: var(--accent); text-decoration: none; }
.md-content a:hover { text-decoration: underline; }
.md-content code {
  background: #eff1f3; border-radius: 4px; padding: 1px 5px;
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace; font-size: .92em;
}
.md-content pre {
  background: #1f2328; color: #e6edf3; padding: 14px 16px; border-radius: 8px;
  overflow-x: auto; line-height: 1.5;
}
.md-content pre code { background: none; padding: 0; color: inherit; }
.md-content table { border-collapse: collapse; margin: 1em 0; }
.md-content th, .md-content td { border: 1px solid var(--border); padding: 6px 10px; }
.md-content th { background: #f1f3f5; }
.md-content blockquote { border-left: 4px solid var(--border); margin: 1em 0; padding: 2px 14px; color: var(--muted); }
.md-content img { max-width: 100%; }

/* 中屏：列表超出时横向滚动兜底 */
.table-wrap { overflow-x: auto; }

/* ---- 手机适配（≤640px） ---- */
@media (max-width: 640px) {
  body { font-size: 15px; }
  .wrap { padding: 18px 14px 40px; }
  header h1 { font-size: 22px; }
  .sub { margin-bottom: 18px; }
  h2 { font-size: 16px; }

  /* 上传区 */
  .dropzone { padding: 30px 14px; }
  .dz-big { font-size: 16px; }

  /* 列表：表格行转卡片 */
  .table-wrap { overflow: visible; }
  .list thead { display: none; }
  .list, .list tbody { display: block; }
  .list tr {
    display: block; margin-bottom: 12px; padding: 8px 12px;
    border: 1px solid var(--border); border-radius: 10px; background: var(--card);
  }
  .list td { display: block; border: none; padding: 4px 0; width: 100%; }
  .list td::before {
    content: attr(data-label);
    display: inline-block; width: 4.4em; margin-right: 6px;
    color: var(--muted); font-size: 12px;
  }
  .list td.ops {
    display: flex; gap: 6px; margin-top: 8px; padding-top: 8px;
    border-top: 1px dashed var(--border);
  }
  .list td.ops::before { display: none; }
  .list td.ops .btn {
    flex: 1; text-align: center; padding: 10px 0; font-size: 14px; margin: 0;
  }

  /* 预览页 */
  .subhead h1 { font-size: 16px; }
  .titledit { width: 100%; min-width: 0; }
  .md-content { padding: 14px 16px; border-radius: 8px; }
  .md-content table { display: block; overflow-x: auto; }
  .orig img { max-height: 320px; }

  /* 触控友好 */
  .btn, .catbadge { -webkit-tap-highlight-color: transparent; }
}