/* ============ 令牌:阅览室 ============
   纸 #f2f4f0 · 墨 #233129 · 松 #2f5d4a · 丝带 #a63b2a */
:root {
  --bg: #f2f4f0;
  --panel: #fbfcfa;
  --text: #233129;
  --muted: #6f7f74;
  --border: #d7ded2;
  --accent: #a63b2a;
  --accent-deep: #8c2f20;
  --accent-weak: #f3e2da;
  --pine: #2f5d4a;
  --danger: #b3261e;
  --hover: #e8eee4;
  --serif: Georgia, "Noto Serif SC", "Source Han Serif SC", "Songti SC", SimSun, serif;
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font: 14px/1.5 -apple-system, "Segoe UI", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--text);
}
:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }

/* 内联 SVG 图标 */
.ico {
  width: 15px; height: 15px; display: inline-block; vertical-align: -3px;
  fill: none; stroke: currentColor; stroke-width: 1.4;
  stroke-linecap: round; stroke-linejoin: round;
}

/* ---------- 顶栏:书页上缘,垂一条丝带 ---------- */
#topbar {
  position: sticky; top: 0; z-index: 50;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
  padding: 10px 16px 8px;
}
#topbar .row1 { display: flex; align-items: center; gap: 10px; min-height: 30px; }
#logo {
  font-family: var(--serif); font-weight: 600; font-size: 17px;
  letter-spacing: .18em; margin-right: 4px; white-space: nowrap;
}
#recents-label { color: var(--muted); font-size: 12px; white-space: nowrap; }
#recents { flex: 1; display: flex; gap: 6px; overflow: hidden; min-width: 40px; }
.recent {
  display: inline-flex; align-items: center; gap: 5px;
  padding: 2px 9px; border-radius: 12px;
  background: var(--panel); color: var(--text);
  text-decoration: none; white-space: nowrap; font-size: 12px;
  border: 1px solid var(--border);
}
.recent:hover { border-color: var(--accent); color: var(--accent); background: var(--accent-weak); }
.recent img { width: 13px; height: 13px; }
.recent .ico { width: 13px; height: 13px; }
#dirty-badge {
  color: var(--accent); background: var(--accent-weak); border: 1px solid #e0c0b3;
  border-radius: 10px; padding: 1px 8px; font-size: 12px; white-space: nowrap;
}
#topbar .row2 { display: flex; align-items: center; gap: 8px; margin-top: 8px; flex-wrap: wrap; }
#search {
  flex: 1; min-width: 220px;
  padding: 6px 12px; border: 1px solid var(--border); border-radius: 8px;
  font-size: 14px; outline: none; background: var(--panel); color: var(--text);
  transition: border-color .15s, box-shadow .15s;
}
#search:focus { border-color: var(--pine); box-shadow: 0 0 0 3px rgba(47, 93, 74, .12); }
.btn-fn, #bookmarklet {
  padding: 5px 12px; border-radius: 8px; border: 1px solid var(--border);
  background: var(--panel); color: var(--text); cursor: pointer;
  font-size: 13px; text-decoration: none; white-space: nowrap;
  transition: border-color .15s, color .15s, background .15s, transform .05s;
}
.btn-fn:hover, #bookmarklet:hover { border-color: var(--accent); color: var(--accent); background: var(--accent-weak); }
.btn-fn:active, #bookmarklet:active { transform: scale(.96); }
.btn-sep { width: 1px; height: 20px; background: var(--border); margin: 0 2px; flex: none; }
/* 上传是第一动线,丝带红实心 */
#upload-btn { background: var(--accent); border-color: var(--accent); color: #fff; }
#upload-btn:hover { background: var(--accent-deep); border-color: var(--accent-deep); color: #fff; }
#status { color: var(--muted); font-size: 12px; }

/* ---------- 主体 ---------- */
#content { padding: 14px 16px 60px; max-width: 1100px; margin: 0 auto; }
.node { }
.row {
  display: flex; align-items: center; gap: 6px;
  padding: 4px 8px; border-radius: 6px; cursor: pointer;
  color: var(--text); text-decoration: none;
  transition: background .12s;
}
.row:hover { background: var(--hover); }
.row.drop-hover { outline: 2px dashed var(--accent); background: var(--accent-weak); }
/* 拖到两行之间 = 排序,显示横线 */
.row.drop-before { box-shadow: inset 0 3px 0 var(--accent); background: var(--accent-weak); }
.row.drop-after { box-shadow: inset 0 -3px 0 var(--accent); background: var(--accent-weak); }
/* 拖到树的空白处 = 放入根目录 */
#tree { min-height: 50vh; border-radius: 8px; }
#tree.drop-hover { outline: 2px dashed var(--accent); outline-offset: -2px; background: var(--accent-weak); }
.row.folder { font-weight: 600; }
.folder-node > .children { margin-left: 22px; border-left: 1px solid var(--border); padding-left: 6px; }
.toggle { width: 14px; text-align: center; color: var(--muted); flex: none; transition: transform .12s; }
.ficon { flex: none; color: var(--muted); }
.row.folder .ficon { color: var(--pine); }
.bicon { width: 18px; height: 18px; flex: none; display: inline-flex; align-items: center; justify-content: center; }
.bicon img { width: 16px; height: 16px; border-radius: 3px; }
.bicon .ico { color: var(--muted); }
/* 脚本书签:红码标,提示是可执行脚本而非网页 */
.row.bmlet .bicon .ico { color: var(--accent); }
.row .name {
  flex: 0 1 auto; overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.row .cnt { color: var(--muted); font-size: 12px; font-weight: 400; }
/* 点击次数徽标:印章般的墨绿热力 */
.cnt-clicks {
  flex: none; margin-left: auto; min-width: 16px;
  color: var(--muted); font-size: 11px; text-align: right;
  background: var(--hover); border-radius: 8px; padding: 0 6px; line-height: 16px;
  font-variant-numeric: tabular-nums;
}
.row .acts { margin-left: 0; }
.cnt-clicks:empty { display: none; }
/* 点击次数热力色:越大越深(松绿) */
.cnt-clicks.ct1 { background: #edf2ec; color: #8aa38f; }
.cnt-clicks.ct2 { background: #dfeadd; color: #57755f; }
.cnt-clicks.ct3 { background: #cfe0cd; color: #3a5c48; }
.cnt-clicks.ct4 { background: #6f9578; color: #fff; }
.cnt-clicks.ct5 { background: var(--pine); color: #fff; font-weight: 600; }
.acts { margin-left: auto; display: none; gap: 2px; flex: none; }
.row:hover .acts { display: inline-flex; }
.act-btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 3px 5px; border-radius: 4px; opacity: .7; color: var(--muted);
}
.act-btn .ico { width: 13px; height: 13px; }
.act-btn:hover { opacity: 1; color: var(--accent); background: var(--accent-weak); }
a.row.bm:visited .name { color: #8b968c; }

/* ---------- 搜索结果 ---------- */
#results .path { color: var(--muted); font-size: 12px; margin-left: 8px; flex: 1 1 auto; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
/* AI 回答:批注样式,左侧一道墨线 */
#results .ai-answer {
  background: var(--panel); border: 1px solid var(--border); border-left: 3px solid var(--accent);
  border-radius: 8px; padding: 10px 14px; margin-bottom: 12px;
}
#results .empty { color: var(--muted); padding: 24px; text-align: center; }
.result-head { font-weight: 600; margin: 12px 0 6px; color: var(--muted); font-size: 13px; }
.ai-refine {
  margin-left: 10px; padding: 2px 10px; font-size: 12px; font-weight: 500;
  border: 1px solid var(--accent); color: var(--accent); background: none;
  border-radius: 8px; cursor: pointer; vertical-align: 1px;
}
.ai-refine:hover { background: var(--accent-weak); }
.ai-refine:disabled { opacity: .55; cursor: default; }

/* ---------- 弹窗 ---------- */
#modal-root { position: fixed; inset: 0; z-index: 100; }
#modal-mask { position: absolute; inset: 0; background: rgba(35, 49, 41, .38); }
#modal-box {
  position: absolute; left: 50%; top: 12vh; transform: translateX(-50%);
  width: min(520px, 92vw); max-height: 75vh; overflow: auto;
  background: var(--panel); border-radius: 14px; padding: 18px 20px;
  box-shadow: 0 12px 40px rgba(35, 49, 41, .22);
  animation: modal-in .16s ease-out;
}
@keyframes modal-in {
  from { opacity: 0; transform: translateX(-50%) translateY(-8px); }
  to   { opacity: 1; transform: translateX(-50%) translateY(0); }
}
#modal-box h3 {
  margin: 0 0 14px; font-family: var(--serif);
  font-size: 16px; font-weight: 600; letter-spacing: .08em;
}
#modal-box button {
  padding: 6px 14px; border-radius: 8px; border: 1px solid var(--border);
  background: var(--panel); color: var(--text); cursor: pointer; font-size: 13px;
  transition: border-color .15s, color .15s, background .15s;
}
#modal-box button:hover { border-color: var(--accent); color: var(--accent); background: var(--accent-weak); }
#modal-box label { display: block; margin: 10px 0 4px; color: var(--muted); font-size: 12px; }
#modal-box input[type=text], #modal-box input[type=url], #modal-box input[type=password] {
  width: 100%; padding: 7px 10px; border: 1px solid var(--border);
  border-radius: 8px; font-size: 14px; outline: none; background: var(--bg); color: var(--text);
}
#modal-box input:focus { border-color: var(--pine); }
.folder-line { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.folder-line .picker-panel { flex: 0 0 100%; }
.folder-line .cur { flex: 1; padding: 7px 10px; background: var(--bg); border-radius: 8px; border: 1px solid var(--border); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.modal-btns { display: flex; justify-content: flex-end; gap: 8px; margin-top: 16px; }
#picker-list { max-height: 320px; overflow: auto; border: 1px solid var(--border); border-radius: 8px; margin-top: 8px; }
/* 表单内嵌的文件夹选择面板(不替换弹窗) */
.picker-panel { width: 100%; margin-top: 8px; }
.picker-panel .pick-search { width: 100%; }
.picker-panel .picker-list {
  max-height: 260px; overflow: auto; margin-top: 6px;
  border: 1px solid var(--border); border-radius: 8px; background: var(--panel);
}
.pick-folder { padding: 6px 10px; cursor: pointer; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.pick-folder:hover { background: var(--accent-weak); }
.pick-folder.sel { background: var(--pine); color: #fff; }
.pick-path { color: var(--muted); font-size: 12px; margin-left: 6px; }
.pick-folder.sel .pick-path { color: rgba(255,255,255,.8); }

/* 主按钮要压过 #modal-box button 的 ID 特异性 */
#modal-box .primary { background: var(--accent); border-color: var(--accent); color: #fff; }
#modal-box .primary:hover { background: var(--accent-deep); border-color: var(--accent-deep); color: #fff; }
#modal-box button:disabled { opacity: .55; cursor: default; transform: none; }

/* AI 归类 */
.ai-row { display: flex; align-items: center; gap: 8px; margin-top: 10px; }
.ai-row button { border-color: var(--accent); color: var(--accent); }
#f-ai-tip { font-size: 12px; color: var(--muted); flex: 1; }
#f-ai-tip.err { color: var(--danger); }
.ai-suggest {
  margin-top: 8px; padding: 8px 10px; border: 1px dashed var(--accent);
  border-radius: 8px; font-size: 13px; cursor: pointer; background: var(--panel);
}
.ai-suggest:hover { background: var(--accent-weak); }
.ai-suggest.sel { border-style: solid; background: var(--accent-weak); font-weight: 600; }
.folder-line .cur.pending-new { border-style: dashed; color: var(--accent); }

/* 顶部「更多」下拉菜单 */
.more-wrap { position: relative; display: inline-flex; }
#more-menu {
  position: absolute; top: calc(100% + 6px); right: 0; z-index: 30;
  display: flex; flex-direction: column; min-width: 220px; padding: 6px;
  background: var(--panel); border: 1px solid var(--border); border-radius: 10px;
  box-shadow: 0 8px 24px rgba(35, 49, 41, .14);
}
/* display:flex 会压过 hidden 属性的 UA 样式,必须显式关掉 */
#more-menu[hidden] { display: none; }
#more-menu button, #more-menu a {
  display: block; width: 100%; text-align: left; padding: 8px 10px;
  border: 0; background: none; border-radius: 6px; font-size: 13px;
  color: var(--text); cursor: pointer; white-space: nowrap; text-decoration: none;
}
#more-menu button:hover, #more-menu a:hover { background: var(--accent-weak); color: var(--accent); }
.err-tip { color: var(--danger); font-size: 12px; }
.dup-tip { color: var(--accent); font-size: 12px; margin-top: 4px; }

/* ---------- 质量底线 ---------- */
@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
}
@media (max-width: 640px) {
  #recents-label { display: none; }
  #more-menu { left: 0; right: auto; }
}