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<!DOCTYPE html>
<html lang="zh-CN">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Parallel Reader - 极简项目批注版</title>
<script src="https://cdnjs.cloudflare.com/ajax/libs/pdf.js/3.11.174/pdf.min.js"></script>
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/pdf.js/3.11.174/pdf_viewer.min.css">
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/KaTeX/0.16.9/katex.min.css">
<script src="https://cdnjs.cloudflare.com/ajax/libs/KaTeX/0.16.9/katex.min.js"></script>
<style>
:root { color-scheme: light; }
body.theme-normal {
--bg-main:#f5f7fb; --bg-toolbar:rgba(255,255,255,.92); --bg-header:#ffffff; --surface:#ffffff; --surface-2:#f8fafc;
--text-main:#111827; --text-muted:#64748b; --border:#e5e7eb; --border-soft:#eef2f7;
--btn-hover:#f1f5f9; --input-bg:#ffffff; --page-bg:#ffffff; --shadow:0 18px 45px rgba(15,23,42,.08);
--sidebar-bg:#fbfdff; --sidebar-hover:#eef6ff; --accent:#2563eb; --accent-soft:#e8f0ff; --danger:#dc2626; --danger-soft:#fff1f2;
--selection:rgba(37,99,235,.38); --page-filter:none; --page-blend:normal; --focus:0 0 0 3px rgba(37,99,235,.16);
}
body.theme-dark {
color-scheme: dark;
--bg-main:#101318; --bg-toolbar:rgba(18,22,28,.92); --bg-header:#161b22; --surface:#161b22; --surface-2:#111720;
--text-main:#e5e7eb; --text-muted:#94a3b8; --border:#263241; --border-soft:#1f2937;
--btn-hover:#202a36; --input-bg:#0d1117; --page-bg:#1c212b; --shadow:0 20px 50px rgba(0,0,0,.38);
--sidebar-bg:#131922; --sidebar-hover:#1f2937; --accent:#60a5fa; --accent-soft:#14243b; --danger:#f87171; --danger-soft:#351a1f;
--selection:rgba(96,165,250,.48); --page-filter:invert(.86) hue-rotate(180deg) contrast(1.06); --page-blend:normal; --focus:0 0 0 3px rgba(96,165,250,.20);
}
body.theme-green {
--bg-main:#eef7ef; --bg-toolbar:rgba(248,253,249,.92); --bg-header:#f9fffa; --surface:#fbfffc; --surface-2:#f0f8f1;
--text-main:#1f3d27; --text-muted:#5f7f67; --border:#d6e8d9; --border-soft:#e6f2e8;
--btn-hover:#e6f3e8; --input-bg:#ffffff; --page-bg:#edf8ee; --shadow:0 18px 45px rgba(31,61,39,.10);
--sidebar-bg:#f4fbf5; --sidebar-hover:#e4f2e6; --accent:#2f7d4f; --accent-soft:#e7f4ec; --danger:#c2410c; --danger-soft:#fff4ed;
--selection:rgba(37,99,235,.36); --page-filter:none; --page-blend:multiply; --focus:0 0 0 3px rgba(47,125,79,.18);
}
body.theme-sepia {
--bg-main:#f7f0e2; --bg-toolbar:rgba(255,250,240,.92); --bg-header:#fff8ec; --surface:#fffaf0; --surface-2:#fbf1df;
--text-main:#473829; --text-muted:#8a735a; --border:#eadcc4; --border-soft:#f2e8d7;
--btn-hover:#f4e8d2; --input-bg:#fffaf0; --page-bg:#fff6e6; --shadow:0 18px 45px rgba(71,56,41,.10);
--sidebar-bg:#fff8ec; --sidebar-hover:#f3e4ca; --accent:#9a6a2f; --accent-soft:#f3e7d5; --danger:#b45309; --danger-soft:#fff7ed;
--selection:rgba(37,99,235,.34); --page-filter:none; --page-blend:multiply; --focus:0 0 0 3px rgba(154,106,47,.18);
}
body.theme-gray {
--bg-main:#f1f3f5; --bg-toolbar:rgba(255,255,255,.90); --bg-header:#ffffff; --surface:#ffffff; --surface-2:#f6f7f8;
--text-main:#22272e; --text-muted:#6b7280; --border:#d7dce2; --border-soft:#e7eaee;
--btn-hover:#eef0f2; --input-bg:#ffffff; --page-bg:#f7f7f7; --shadow:0 18px 45px rgba(0,0,0,.08);
--sidebar-bg:#fafafa; --sidebar-hover:#eceff2; --accent:#475569; --accent-soft:#edf0f4; --danger:#dc2626; --danger-soft:#fff1f2;
--selection:rgba(37,99,235,.34); --page-filter:none; --page-blend:multiply; --focus:0 0 0 3px rgba(71,85,105,.16);
}
* { box-sizing:border-box; }
body {
margin:0; height:100vh; overflow:hidden; display:flex; flex-direction:column;
font-family:Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, "Microsoft YaHei", sans-serif;
background:linear-gradient(180deg, var(--surface-2) 0%, var(--bg-main) 44%, var(--bg-main) 100%);
color:var(--text-main); transition:background .18s,color .18s;
-webkit-font-smoothing:antialiased; text-rendering:geometricPrecision;
}
button, select, input { font:inherit; }
button:focus-visible, select:focus-visible, input:focus-visible { outline:none; box-shadow:var(--focus); }
.toolbar {
min-height:56px; padding:10px 14px; display:flex; align-items:center; flex-wrap:wrap; gap:10px;
background:var(--bg-toolbar); border-bottom:1px solid var(--border); z-index:100; backdrop-filter:saturate(180%) blur(16px);
}
.brand { display:flex; flex-direction:column; gap:1px; padding:0 6px 0 2px; min-width:128px; }
.brand-title { font-size:14px; font-weight:760; letter-spacing:-.02em; line-height:1.1; }
.brand-subtitle { font-size:11px; color:var(--text-muted); line-height:1.2; }
.toolbar-group { display:flex; align-items:center; gap:6px; padding:4px; border:1px solid var(--border-soft); border-radius:999px; background:rgba(255,255,255,.42); }
.project-status { font-size:12px; color:var(--text-muted); padding:0 6px; max-width:180px; white-space:nowrap; overflow:hidden; text-overflow:ellipsis; }
.toggle-label { display:flex; align-items:center; gap:4px; font-size:12px; color:var(--text-muted); padding:0 4px; user-select:none; white-space:nowrap; }
.toggle-label input { accent-color:var(--accent); }
body.theme-dark .toolbar-group { background:rgba(255,255,255,.03); }
.toolbar button, .toolbar select, .mini-btn {
height:30px; padding:0 11px; border-radius:999px; border:1px solid transparent; background:transparent; color:var(--text-main);
font-size:12px; cursor:pointer; transition:background .14s,border-color .14s,box-shadow .14s,transform .12s,opacity .14s; white-space:nowrap;
}
.toolbar button:hover:not(:disabled), .toolbar select:hover, .mini-btn:hover:not(:disabled) { background:var(--btn-hover); border-color:var(--border); }
.toolbar button.icon-btn { width:30px; min-width:30px; padding:0; display:inline-grid; place-items:center; font-size:14px; font-weight:760; line-height:1; }
.quick-nav { gap:3px; }
.quick-nav .icon-btn[disabled] { opacity:.32; }
.toolbar-menu { position:relative; }
.toolbar-menu summary { list-style:none; height:30px; padding:0 12px; border-radius:999px; border:1px solid transparent; display:flex; align-items:center; gap:6px; cursor:pointer; font-size:12px; user-select:none; white-space:nowrap; }
.toolbar-menu summary::-webkit-details-marker { display:none; }
.toolbar-menu summary::after { content:"⌄"; font-size:11px; color:var(--text-muted); transform:translateY(-1px); }
.toolbar-menu[open] summary, .toolbar-menu summary:hover { background:var(--btn-hover); border-color:var(--border); }
.toolbar-popover { position:absolute; top:calc(100% + 8px); left:0; min-width:230px; padding:10px; border:1px solid var(--border); border-radius:16px; background:var(--surface); box-shadow:0 22px 60px rgba(15,23,42,.18); display:flex; flex-direction:column; gap:8px; z-index:500; }
body.theme-dark .toolbar-popover { box-shadow:0 24px 70px rgba(0,0,0,.46); }
.toolbar-popover.right { left:auto; right:0; }
.toolbar-popover .menu-row { display:flex; align-items:center; gap:6px; flex-wrap:wrap; }
.toolbar-popover button, .toolbar-popover select { border-color:var(--border); background:transparent; }
.toolbar-popover .menu-label { font-size:11px; color:var(--text-muted); padding:0 4px; }
.color-palette { display:flex; align-items:center; gap:5px; padding:2px 3px; border-radius:999px; border:1px solid var(--border-soft); background:var(--surface); }
.color-swatch { width:22px!important; height:22px!important; min-width:22px!important; padding:0!important; border-radius:999px!important; border:1px solid rgba(15,23,42,.14)!important; box-shadow:inset 0 0 0 2px rgba(255,255,255,.58); }
.color-swatch.active { outline:2px solid var(--accent); outline-offset:2px; }
.color-swatch[data-color="yellow"] { background:#fde047!important; }
.color-swatch[data-color="green"] { background:#86efac!important; }
.color-swatch[data-color="blue"] { background:#93c5fd!important; }
.color-swatch[data-color="pink"] { background:#f9a8d4!important; }
.color-swatch[data-color="purple"] { background:#c4b5fd!important; }
.compact-label { display:inline-flex; align-items:center; gap:6px; font-size:12px; color:var(--text-muted); white-space:nowrap; }
.toolbar button:active:not(:disabled), .mini-btn:active:not(:disabled) { transform:translateY(1px); }
.toolbar button:disabled, .mini-btn:disabled { opacity:.36; cursor:not-allowed; }
.btn-primary { background:var(--accent)!important; border-color:var(--accent)!important; color:#fff!important; font-weight:700; box-shadow:0 8px 22px rgba(37,99,235,.20); }
body.theme-dark .btn-primary { color:#07111f!important; box-shadow:0 10px 28px rgba(96,165,250,.18); }
.btn-active { background:var(--accent-soft)!important; border-color:var(--accent)!important; color:var(--accent)!important; font-weight:700; }
.btn-danger:hover { background:var(--danger-soft)!important; border-color:var(--danger)!important; color:var(--danger)!important; }
.divider { width:1px; height:22px; background:var(--border); margin:0 2px; flex:0 0 auto; opacity:.8; }
#fileListHint, #memoryHint, #memoryStats { color:var(--text-muted); font-size:12px; max-width:300px; white-space:nowrap; overflow:hidden; text-overflow:ellipsis; }
#memoryHint { color:var(--accent); display:none; }
#memoryStats { margin-left:auto; padding:0 4px; }
.zoom-group { display:flex; align-items:center; gap:2px; border:1px solid var(--border); border-radius:999px; padding:2px 3px; background:var(--surface); }
.zoom-group .mini-btn { height:24px; min-width:24px; padding:0 7px; }
.data-input {
width:42px; height:24px; padding:0 3px; border:0; border-radius:999px; background:transparent; color:var(--text-main);
text-align:center; font-size:12px; font-weight:720;
}
input[type="number"]::-webkit-outer-spin-button, input[type="number"]::-webkit-inner-spin-button { -webkit-appearance:none; margin:0; }
input[type="number"] { -moz-appearance:textfield; }
#viewer-container { flex:1; display:flex; min-height:0; width:100%; overflow:hidden; gap:12px; padding:12px; background:transparent; }
.empty-state {
margin:auto; width:min(520px, calc(100% - 32px)); padding:38px 36px; color:var(--text-muted); text-align:center; line-height:1.8; font-size:14px;
border:1px solid var(--border); border-radius:24px; background:var(--surface); box-shadow:var(--shadow);
}
.empty-state .empty-mark { width:54px; height:54px; margin:0 auto 14px; border-radius:18px; display:grid; place-items:center; background:var(--accent-soft); color:var(--accent); font-weight:800; font-size:22px; }
.empty-state .empty-title { margin-bottom:6px; color:var(--text-main); font-size:18px; font-weight:780; letter-spacing:-.02em; }
.empty-state .empty-desc { font-size:13px; }
.panel-wrapper {
flex:1 1 0; min-width:280px; display:flex; flex-direction:column; overflow:hidden; background:var(--surface);
border:1px solid var(--border); border-radius:18px; box-shadow:var(--shadow);
}
.panel-wrapper.loading .pdf-panel { opacity:0; }
.panel-wrapper.loading .panel-body { position:relative; }
.panel-wrapper.loading .panel-body::after {
content:"正在加载 PDF…"; position:absolute; inset:0; display:grid; place-items:center;
color:var(--text-muted); font-size:13px; background:var(--surface-2); z-index:2;
}
.panel-wrapper:last-child { border-right:1px solid var(--border); }
.panel-header {
min-height:44px; padding:7px 9px; display:flex; align-items:center; justify-content:space-between; gap:8px;
background:var(--bg-header); border-bottom:1px solid var(--border-soft); z-index:50;
}
.header-left { display:flex; align-items:center; gap:7px; flex:1 1 auto; min-width:0; }
.drag-handle { cursor:grab; color:var(--text-muted); padding:0 6px; user-select:none; font-size:15px; border-radius:999px; }
.drag-handle:hover { background:var(--btn-hover); color:var(--text-main); }
.drag-handle:active { cursor:grabbing; color:var(--accent); }
.panel-title { font-size:12.5px; font-weight:760; white-space:nowrap; overflow:hidden; text-overflow:ellipsis; min-width:0; letter-spacing:-.01em; }
.panel-controls { display:flex; align-items:center; gap:4px; color:var(--text-muted); flex:0 0 auto; }
.panel-controls .divider { height:18px; margin:0 3px; }
.mini-btn { height:26px; padding:0 9px; font-size:11.5px; border:1px solid var(--border); background:var(--surface); }
.mini-btn.active { background:var(--accent-soft); border-color:var(--accent); color:var(--accent); font-weight:700; }
.btn-close { width:26px; height:26px; border:none; border-radius:999px; background:transparent; color:var(--text-muted); font-size:16px; cursor:pointer; padding:0; display:grid; place-items:center; }
.btn-close:hover { color:var(--danger); background:var(--danger-soft); }
.panel-body { flex:1; min-height:0; display:flex; overflow:hidden; background:var(--surface-2); }
.panel-sidebar {
width:250px; flex:0 0 250px; display:none; flex-direction:column; overflow:hidden; background:var(--sidebar-bg); border-right:1px solid var(--border-soft); font-size:12px;
}
.sidebar-tabs { display:flex; gap:4px; padding:8px; border-bottom:1px solid var(--border-soft); flex:0 0 auto; overflow-x:auto; }
.sidebar-tabs::-webkit-scrollbar { height: 0; }
.sidebar-tab { flex:1; min-width:40px; height:30px; padding:0 8px; color:var(--text-muted); background:transparent; border:1px solid transparent; border-radius:999px; cursor:pointer; font-size:12px; }
.sidebar-tab:hover { background:var(--btn-hover); }
.sidebar-tab.active { color:var(--accent); font-weight:760; border-color:var(--accent); background:var(--accent-soft); }
.sidebar-content { flex:1; min-height:0; overflow:auto; padding:10px; scrollbar-gutter:stable; }
ul.toc-list { list-style:none; margin:0; padding-left:10px; }
ul.toc-list > li { margin:3px 0; }
.toc-link { display:block; padding:6px 8px; color:var(--text-main); text-decoration:none; border-radius:10px; line-height:1.36; cursor:pointer; }
.toc-link:hover { background:var(--sidebar-hover); color:var(--accent); }
.search-box { display:flex; gap:6px; margin-bottom:10px; }
.search-input { min-width:0; flex:1; height:34px; padding:0 11px; border:1px solid var(--border); border-radius:12px; outline:none; background:var(--input-bg); color:var(--text-main); font-size:12px; }
.search-input:focus { border-color:var(--accent); box-shadow:var(--focus); }
.search-result-item { padding:9px 8px; border:1px solid transparent; border-bottom-color:var(--border-soft); border-radius:12px; cursor:pointer; line-height:1.45; word-break:break-word; }
.search-result-item:hover { background:var(--sidebar-hover); border-color:var(--border-soft); }
.search-result-item b { color:var(--accent); }
.pdf-panel { flex:1; min-width:0; overflow:auto; padding:24px 0; position:relative; scroll-behavior:auto; background:linear-gradient(180deg,var(--surface-2),var(--bg-main)); scrollbar-gutter:stable; }
.page-wrapper {
position:relative; margin:0 auto 18px auto; display:flex; align-items:center; justify-content:center; overflow:hidden;
background:var(--page-bg); border:1px solid rgba(148,163,184,.18); border-radius:6px; box-shadow:0 10px 28px rgba(15,23,42,.12); color:var(--text-muted); font-size:12px;
}
body.theme-dark .page-wrapper { box-shadow:0 16px 32px rgba(0,0,0,.32); border-color:rgba(148,163,184,.12); }
.page-placeholder { user-select:none; color:var(--text-muted); opacity:.72; }
.page-content { position:absolute; left:0; top:0; transform-origin:0 0; will-change:transform; mix-blend-mode:var(--page-blend); }
.page-wrapper canvas { display:block; filter:var(--page-filter); mix-blend-mode:normal; image-rendering:auto; backface-visibility:hidden; }
.textLayer { position:absolute; inset:0; overflow:hidden; transform-origin:0 0; z-index:6; }
.textLayer ::selection { background:var(--selection)!important; color:transparent!important; }
.pdf-link { position:absolute; z-index:20; border-radius:4px; transition:background .12s, box-shadow .12s; }
.pdf-link:hover { background:rgba(37,99,235,.14); box-shadow:0 0 0 1px rgba(37,99,235,.26) inset; }
.search-hit-layer { position:absolute; inset:0; z-index:9; pointer-events:none; }
.search-hit {
position:absolute; border-radius:4px;
background:rgba(255, 221, 51, .62);
outline:3px solid rgba(245, 158, 11, .96);
box-shadow:0 0 0 4px rgba(245, 158, 11, .18), 0 8px 20px rgba(245, 158, 11, .22);
mix-blend-mode:multiply;
animation:searchHitPulse 1.15s ease-in-out 0s 3;
}
body.theme-dark .search-hit { mix-blend-mode:screen; background:rgba(250, 204, 21, .38); outline-color:rgba(251, 191, 36, .95); }
@keyframes searchHitPulse {
0%, 100% { transform:scale(1); opacity:.92; }
50% { transform:scale(1.025); opacity:1; }
}
.toast {
position:fixed; left:50%; bottom:24px; transform:translateX(-50%) translateY(8px); padding:10px 14px; border-radius:999px;
background:rgba(15,23,42,.88); color:#fff; font-size:13px; z-index:999; opacity:0; pointer-events:none; transition:opacity .18s, transform .18s; box-shadow:0 16px 40px rgba(0,0,0,.22); backdrop-filter:blur(10px);
}
.toast.show { opacity:1; transform:translateX(-50%) translateY(0); }
.notes-actions { display:flex; gap:6px; margin-bottom:8px; flex-wrap:wrap; }
.notes-actions .mini-btn { height:28px; }
.note-search-input { width:100%; height:34px; padding:0 11px; margin-bottom:10px; border:1px solid var(--border); border-radius:12px; outline:none; background:var(--input-bg); color:var(--text-main); font-size:12px; }
.note-search-input:focus { border-color:var(--accent); box-shadow:var(--focus); }
.notes-list { display:flex; flex-direction:column; gap:8px; }
.note-item { padding:9px 9px; border:1px solid var(--border-soft); border-radius:12px; background:var(--surface); cursor:pointer; line-height:1.42; }
.note-item:hover { background:var(--sidebar-hover); border-color:var(--border); }
.note-item.active-note {
border-color:var(--accent);
background:var(--accent-soft);
box-shadow:0 0 0 2px color-mix(in srgb, var(--accent) 16%, transparent);
}
.note-meta { display:flex; align-items:center; justify-content:space-between; gap:8px; margin-bottom:5px; font-size:11px; color:var(--text-muted); }
.note-type { color:var(--accent); font-weight:760; display:inline-flex; align-items:center; gap:5px; }
.note-color-dot { width:9px; height:9px; border-radius:999px; display:inline-block; border:1px solid rgba(15,23,42,.16); }
.note-title { font-size:12px; color:var(--text-main); font-weight:720; margin-bottom:3px; word-break:break-word; }
.note-locator { display:flex; align-items:center; gap:6px; flex-wrap:wrap; margin-bottom:6px; font-size:11px; color:var(--text-muted); }
.note-chip { display:inline-flex; align-items:center; height:20px; padding:0 7px; border-radius:999px; background:var(--accent-soft); color:var(--accent); font-weight:760; }
.note-excerpt-label { margin-top:6px; margin-bottom:3px; font-size:11px; color:var(--text-muted); font-weight:760; }
.note-quote { padding:6px 8px; border-radius:10px; background:rgba(148,163,184,.10); color:var(--text-muted); font-size:11.5px; line-height:1.45; word-break:break-word; }
.note-body { font-size:12px; color:var(--text-main); word-break:break-word; max-height:180px; overflow:auto; padding:7px 8px; border-radius:10px; background:var(--surface-2); }
.note-body:empty::before { content:"（空批注）"; color:var(--text-muted); }
.markdown-body { line-height:1.55; color:inherit; }
.markdown-body p { margin:0 0 6px; }
.markdown-body p:last-child { margin-bottom:0; }
.markdown-body ul, .markdown-body ol { margin:4px 0 8px 18px; padding:0; }
.markdown-body li { margin:2px 0; }
.markdown-body blockquote { margin:6px 0; padding:4px 8px; border-left:3px solid var(--border); background:var(--surface-2); border-radius:8px; }
.markdown-body code { padding:1px 5px; border-radius:6px; background:var(--surface-2); color:var(--text-main); font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace; font-size:.92em; }
.markdown-body pre { margin:6px 0; padding:8px; border-radius:10px; background:var(--surface-2); overflow:auto; }
.markdown-body pre code { padding:0; background:transparent; }
.markdown-body a { color:var(--accent); text-decoration:none; }
.markdown-body a:hover { text-decoration:underline; }
.markdown-body .katex-display { margin:.55em 0; overflow-x:auto; overflow-y:hidden; padding:2px 0; }
.markdown-body .katex { color:var(--text-main); }
.markdown-body .math-error { color:var(--danger); font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace; }
.panel-wrapper { position:relative; }
.panel-resizer {
position:absolute; top:0; width:14px; height:100%;
cursor:col-resize; z-index:80; touch-action:none;
}
.panel-resizer-right { right:-7px; }
.panel-resizer-left { left:-7px; }
.panel-resizer::after {
content:""; position:absolute; top:48px; bottom:18px; left:6px; width:2px;
border-radius:999px; background:transparent; transition:background .14s, box-shadow .14s;
}
.panel-resizer:hover::after,
.panel-resizer.dragging::after {
background:var(--accent);
box-shadow:0 0 0 3px var(--accent-soft);
}
body.resizing-layout { cursor:col-resize!important; user-select:none; }
body.resizing-layout * { cursor:col-resize!important; }
.note-actions-row { display:flex; gap:6px; margin-top:8px; }
.note-actions-row button { height:24px; padding:0 8px; border-radius:999px; border:1px solid var(--border); background:transparent; color:var(--text-main); font-size:11px; cursor:pointer; }
.note-actions-row button:hover { background:var(--btn-hover); }
.page-note-marker { position:absolute; right:10px; top:10px; z-index:18; min-width:26px; height:26px; padding:0 8px; border-radius:999px; border:1px solid rgba(202,138,4,.35); background:rgba(254,243,199,.92); color:#92400e; font-size:12px; font-weight:760; display:flex; align-items:center; justify-content:center; cursor:pointer; box-shadow:0 8px 20px rgba(146,64,14,.16); backdrop-filter:blur(6px); }
body.theme-dark .page-note-marker { background:rgba(120,77,20,.86); color:#fde68a; border-color:rgba(253,230,138,.30); }
.note-highlight-layer { position:absolute; inset:0; z-index:7; pointer-events:none; }
.note-highlight { position:absolute; border-radius:3px; box-shadow:0 0 0 1px rgba(15,23,42,.10) inset; mix-blend-mode:multiply; pointer-events:auto; cursor:pointer; }
body.theme-dark .note-highlight { mix-blend-mode:screen; }
.note-highlight:hover { outline:2px solid rgba(37,99,235,.38); }
.note-modal-backdrop {
position:fixed; inset:0; z-index:1200; display:none; pointer-events:none;
background:transparent; backdrop-filter:none;
}
.note-modal-backdrop.show { display:block; }
.note-modal {
position:fixed; left:24px; top:78px; width:min(560px, calc(100vw - 48px)); height:520px;
min-width:340px; min-height:260px; max-width:calc(100vw - 24px); max-height:calc(100vh - 24px);
border:1px solid var(--border); border-radius:20px; background:var(--surface);
box-shadow:0 28px 80px rgba(15,23,42,.28); overflow:hidden; pointer-events:auto;
resize:both; display:flex; flex-direction:column;
}
.note-modal-header { display:flex; align-items:center; justify-content:space-between; gap:10px; padding:14px 16px; border-bottom:1px solid var(--border-soft); cursor:move; user-select:none; }
.note-modal-title { font-size:15px; font-weight:780; color:var(--text-main); }
.note-modal-close { width:28px; height:28px; border:0; border-radius:999px; background:transparent; color:var(--text-muted); cursor:pointer; font-size:18px; }
.note-modal-close:hover { background:var(--btn-hover); color:var(--danger); }
.note-modal-body {
padding:14px 16px; flex:1; min-height:0;
display:flex; flex-direction:column; overflow:hidden;
}
.note-modal-hint { flex:0 0 auto; margin-bottom:8px; font-size:12px; color:var(--text-muted); line-height:1.45; }
.note-modal-text {
display:block; width:100%; max-width:100%; min-width:0; box-sizing:border-box;
flex:1 1 54%; min-height:80px; resize:none; overflow:auto; padding:11px 12px;
border:1px solid var(--border); border-radius:14px; outline:none;
background:var(--input-bg); color:var(--text-main); font-size:13px; line-height:1.55;
}
.note-modal-text:focus { border-color:var(--accent); box-shadow:var(--focus); }
.note-modal-splitter {
flex:0 0 12px; margin:7px 0; cursor:row-resize; position:relative; touch-action:none;
}
.note-modal-splitter::before {
content:""; position:absolute; left:38%; right:38%; top:5px; height:2px;
border-radius:999px; background:var(--border); transition:background .14s, left .14s, right .14s;
}
.note-modal-splitter:hover::before,
.note-modal-splitter.dragging::before {
left:28%; right:28%; background:var(--accent);
}
.note-modal-preview {
display:block; margin-top:0; padding:10px 12px; width:100%; max-width:100%; min-width:0; box-sizing:border-box;
flex:1 1 46%; min-height:70px; resize:none; overflow:auto;
border:1px dashed var(--border); border-radius:14px; background:var(--surface-2); font-size:13px;
}
.note-modal-preview:empty::before { content:"Markdown / LaTeX 预览"; color:var(--text-muted); opacity:.75; }
.note-modal-footer { flex:0 0 auto; display:flex; justify-content:space-between; gap:8px; padding:12px 16px 16px; border-top:1px solid var(--border-soft); }
.note-modal-footer .left, .note-modal-footer .right { display:flex; gap:8px; }
.note-modal-footer button { height:32px; padding:0 13px; border-radius:999px; border:1px solid var(--border); background:transparent; color:var(--text-main); cursor:pointer; font-size:12px; }
.note-modal-footer button:hover { background:var(--btn-hover); }
.note-modal-footer .primary { background:var(--accent); border-color:var(--accent); color:#fff; font-weight:760; }
.note-modal-footer .danger { color:var(--danger); border-color:rgba(220,38,38,.35); }
.note-modal-footer .danger:hover { background:var(--danger-soft); border-color:var(--danger); }
/* === 新增：分组相关样式 === */
.note-modal-groups { flex: 0 0 auto; margin-top: 10px; padding-top: 10px; border-top: 1px solid var(--border-soft); }
.group-input-wrapper { display: flex; gap: 6px; margin-bottom: 8px; }
.group-input-wrapper input { flex: 1; height: 28px; padding: 0 10px; border: 1px solid var(--border); border-radius: 6px; background: var(--input-bg); color: var(--text-main); font-size: 12px; }
.group-input-wrapper input:focus { border-color: var(--accent); outline: none; }
.note-group-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 8px; }
.group-tag { display: inline-flex; align-items: center; gap: 4px; padding: 2px 8px; background: var(--accent-soft); color: var(--accent); font-size: 11px; font-weight: 600; border-radius: 999px; }
.group-tag .remove-tag { cursor: pointer; opacity: 0.6; }
.group-tag .remove-tag:hover { opacity: 1; color: var(--danger); }
.note-group-relations { font-size: 11px; color: var(--text-muted); max-height: 80px; overflow-y: auto; }
.relation-link { color: var(--accent); cursor: pointer; text-decoration: underline; margin-right: 8px; display: inline-block; }
.group-folder { margin-bottom: 8px; border: 1px solid var(--border-soft); border-radius: 8px; background: var(--surface); overflow: hidden; }
.group-folder-header { padding: 8px 10px; background: var(--surface-2); font-weight: 700; font-size: 12px; color: var(--text-main); cursor: pointer; display: flex; justify-content: space-between; }
.group-folder-header:hover { background: var(--btn-hover); }
.group-folder-content { padding: 6px; display: none; }
.group-folder.open .group-folder-content { display: block; }
.group-item-mini { padding: 6px; border-radius: 6px; cursor: pointer; font-size: 11px; margin-bottom: 4px; border: 1px solid transparent; }
.group-item-mini:hover { background: var(--sidebar-hover); border-color: var(--border-soft); }
.note-chip-group { font-size: 10px; padding: 1px 6px; background: var(--border-soft); border-radius: 4px; margin-right: 4px; color: var(--text-muted); }
@media (max-width: 900px) {
.brand { min-width:100%; flex-direction:row; align-items:baseline; gap:8px; }
.toolbar { gap:8px; }
.toolbar-group { max-width:100%; }
#viewer-container { padding:8px; gap:8px; }
.panel-sidebar { width:220px; flex-basis:220px; }
}
</style>
</head>
<body class="theme-normal">
<div class="toolbar">
<input type="file" id="fileInput" multiple accept="application/pdf,.pdf" style="display:none">
<input type="file" id="projectFileInput" accept=".prproj,.readerproj,.json,application/json" style="display:none">
<div class="brand" aria-label="应用名称">
<div class="brand-title">Parallel Reader</div>
<div class="brand-subtitle">极简同步阅读 · 项目 + 批注</div>
</div>
<div class="toolbar-group">
<button id="btnAddFile" class="btn-primary">打开 PDF</button>
<button id="btnLoad" class="btn-primary">开始阅读</button>
<button id="btnClear" class="btn-danger" title="清空当前工作区">清空</button>
</div>
<span id="fileListHint"></span>
<span id="memoryHint"></span>
<div class="toolbar-group" id="persistGroup">
<details class="toolbar-menu">
<summary>项目</summary>
<div class="toolbar-popover">
<span id="projectStatus" class="project-status" title="当前项目保存状态">项目：临时</span>
<label class="toggle-label" title="开启后，锚点、缩放和阅读进度会自动保存到当前项目"><input id="chkAutoSave" type="checkbox" checked>自动保存</label>
<label class="toggle-label" title="开启后，保存项目文件时会把 PDF 副本也写入项目文件；关闭则只保存文件名、锚点和进度"><input id="chkSavePdfCopy" type="checkbox" checked>保存 PDF</label>
<div class="menu-row"><button id="btnSaveProject" title="把当前打开的 PDF、锚点和阅读进度保存到浏览器暂存区">保存暂存</button><button id="btnRestorePersist" title="打开浏览器本地暂存的项目">打开暂存</button></div>
<div class="menu-row"><button id="btnExportProject" title="弹出另存为窗口，手动选择 .readerproj 项目文件保存位置；不支持时自动回退为浏览器下载">导出项目</button><button id="btnImportProject" title="从 .prproj / .readerproj 项目文件恢复文档、锚点和阅读进度">导入项目</button></div>
<div class="menu-row"><button id="btnTempMode" title="切换为临时阅读，不再自动写入项目数据库">临时模式</button><button id="btnClearPersist" class="btn-danger" title="删除浏览器本地暂存的项目数据">删除项目</button></div>
</div>
</details>
</div>
<div class="toolbar-group">
<button id="btnToggleSync" class="btn-active">同步开启</button>
<button id="btnAnchor" title="记录当前各文档页码错位关系">锁定锚点</button>
</div>
<div class="toolbar-group quick-nav" aria-label="视图快捷操作">
<button id="btnResetView" class="icon-btn" title="重置缩放和同步锚点，并回到顶部">↺</button>
<button id="btnHistoryBack" class="icon-btn" disabled title="后退：Alt + ←">←</button>
<button id="btnHistoryForward" class="icon-btn" disabled title="前进：Alt + →">→</button>
</div>
<div class="toolbar-group" title="对当前活跃文档进行批注">
<span class="compact-label">高亮</span>
<div id="highlightPalette" class="color-palette" role="group" aria-label="高亮颜色">
<button class="color-swatch active" data-color="yellow" type="button" title="黄色高亮"></button>
<button class="color-swatch" data-color="green" type="button" title="绿色高亮"></button>
<button class="color-swatch" data-color="blue" type="button" title="蓝色高亮"></button>
<button class="color-swatch" data-color="pink" type="button" title="粉色高亮"></button>
<button class="color-swatch" data-color="purple" type="button" title="紫色高亮"></button>
</div>
<button id="btnHighlight" title="先选中文本，再点击这里添加当前颜色的高亮和笔记">标记</button>
<details class="toolbar-menu">
<summary>批注</summary>
<div class="toolbar-popover">
<button id="btnPageNote" title="给当前页添加或编辑页面便签">页面便签</button>
<button id="btnShowNotes" title="打开当前文档的批注列表并可搜索笔记">批注列表</button>
<div class="menu-label">提示：先选择高亮颜色，再选中文本点击“标记”。</div>
</div>
</details>
</div>
<details class="toolbar-menu">
<summary>视图</summary>
<div class="toolbar-popover right">
<div class="menu-row">
<span class="menu-label">全局缩放</span>
<div class="zoom-group" title="全局缩放">
<button id="btnGlobalZoomOut" class="mini-btn">−</button>
<input id="globalZoomInput" class="data-input" type="number" value="90" min="30" max="300" title="全局缩放，回车生效">
<span style="font-size:11px;color:var(--text-muted)">%</span>
<button id="btnGlobalZoomIn" class="mini-btn">+</button>
</div>
</div>
<div class="menu-row">
<span class="menu-label">单文档宽度</span>
<div class="zoom-group" title="只有打开 1 个 PDF 时生效">
<button id="btnSingleWidthDown" class="mini-btn">−</button>
<input id="singleWidthInput" class="data-input" type="number" value="92" min="45" max="100" title="单文档面板宽度，回车生效">
<span style="font-size:11px;color:var(--text-muted)">%</span>
<button id="btnSingleWidthUp" class="mini-btn">+</button>
</div>
</div>
<div class="menu-row">
<span class="menu-label">单文档位置</span>
<select id="singleAlignSelect" title="只有打开 1 个 PDF 时生效"><option value="flex-start">靠左</option><option value="center" selected>居中</option><option value="flex-end">靠右</option></select>
</div>
<div class="menu-row">
<button id="btnResetLayout" title="重置单文档宽度、位置和多文档占比">重置布局</button>
</div>
<div class="menu-row">
<span class="menu-label">主题</span>
<select id="themeSelect" title="主题"><option value="normal">清新白</option><option value="dark">深色</option><option value="green">豆沙绿</option><option value="sepia">米色纸</option><option value="gray">柔和灰</option></select>
</div>
</div>
</details>
<span id="memoryStats" title="当前已保留的渲染页数；性能版默认降低预渲染并延后文本层"></span>
</div>
<div id="viewer-container">
<div class="empty-state">
<div class="empty-mark">PDF</div>
<div class="empty-title">选择文档开始阅读</div>
<div class="empty-desc">支持 1–4 个 PDF 并排阅读、错位锚点同步、项目文件导入导出、目录检索、页面便签、文本高亮和笔记搜索。</div>
</div>
</div>
<div id="toast" class="toast"></div>
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<div id="noteModalTitle" class="note-modal-title">编辑笔记</div>
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<div id="noteModalHint" class="note-modal-hint"></div>
<textarea id="noteModalText" class="note-modal-text" placeholder="输入笔记内容..."></textarea>
<div id="noteModalSplit" class="note-modal-splitter" title="拖拽调整输入区和预览区高度"></div>
<div id="noteModalPreview" class="note-modal-preview markdown-body"></div>
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<div class="group-input-wrapper">
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<div class="left"><button id="noteModalDelete" class="danger" type="button">删除</button></div>
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(() => {
'use strict';
pdfjsLib.GlobalWorkerOptions.workerSrc = 'https://cdnjs.cloudflare.com/ajax/libs/pdf.js/3.11.174/pdf.worker.min.js';
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const DEFAULT_ZOOM = 0.90;
const MIN_ZOOM = 0.30;
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const BOUNDARY_BLEND_START = 0.34;
const BOUNDARY_BLEND_END = 0.66;
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const PERSIST_META_STORE = 'meta';
const PERSIST_META_KEY = 'workspace';
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notes: []
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const t = clamp((x - edge0) / Math.max(0.0001, edge1 - edge0), 0, 1);
return t * t * (3 - 2 * t);
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return String(s).replace(/[&<>'"]/g, c => ({ '&':'&', '<':'<', '>':'>', "'":''', '"':'"' }[c]));
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return String(s).replace(/[.*+?^${}()|[\]\\]/g, '\\$&');
}
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const itemWidth = Math.max(1, Number(item.width || 0));
const itemHeight = Math.max(6, Number(item.height || 12));
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h: clamp(h / Math.max(1, viewport.height), 0.006, 1)
};
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pagePct: clamp((rect.y + rect.h / 2), 0, 0.999),
rect,
itemIndex,
localStart,
localLen,
itemTextLength: Math.max(1, str.length)
};
} catch (_) {
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}
}
offset += str.length + 1;
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localStart: matchInfo.localStart || 0,
localLen: matchInfo.localLen || 0,
itemTextLength: matchInfo.itemTextLength || 1,
createdAt: Date.now(),
recentered: false
};
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updateIndicator(doc);
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renderSearchHitForPage(doc, idx);
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doc.pages[idx]?.el?.querySelector('.search-hit-layer')?.remove();
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const yPx = box.top - contentBox.top;
const wPx = Math.max(8, box.width * lenRatio);
const hPx = Math.max(8, box.height);
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x: clamp(xPx / contentBox.width, 0, 0.999),
y: clamp(yPx / contentBox.height, 0, 0.999),
w: clamp(wPx / contentBox.width, 0.006, 1),
h: clamp(hPx / contentBox.height, 0.006, 1)
};
}
function recenterSearchHit(doc, pageIndex, rect) {
const hit = doc.searchHit;
if (!hit || hit.pageIndex !== pageIndex || hit.recentered) return;
if (Date.now() - hit.createdAt > 3500) return;
const el = doc.pages[pageIndex]?.el;
if (!el) return;
const yInPage = (rect.y + rect.h / 2) * el.offsetHeight;
const targetY = Math.max(0, el.offsetTop + yInPage - doc.scroller.clientHeight / 2);
if (Math.abs(doc.scroller.scrollTop - targetY) > 18) {
doc.scroller.scrollTo({ top: targetY, behavior: 'smooth' });
}
hit.recentered = true;
}
function centerSearchHitElement(doc, element, hit) {
if (!doc || !element || !hit) return;
if (hit.centeredAt && Date.now() - hit.centeredAt < 800) return;
requestAnimationFrame(() => {
try {
element.scrollIntoView({ behavior: 'smooth', block: 'center', inline: 'nearest' });
hit.centeredAt = Date.now();
} catch (_) {
const pageState = doc.pages[hit.pageIndex];
const el = pageState?.el;
if (!el) return;
const r = hit.rect || { y: hit.pagePct ?? 0.5, h: 0.02 };
const yInPage = (r.y + r.h / 2) * el.offsetHeight;
doc.scroller.scrollTo({ top: Math.max(0, el.offsetTop + yInPage - doc.scroller.clientHeight / 2), behavior: 'smooth' });
hit.centeredAt = Date.now();
}
});
}
function renderSearchHitForPage(doc, pageIndex) {
const hit = doc.searchHit;
const pageState = doc.pages[pageIndex];
if (!hit || hit.pageIndex !== pageIndex || !pageState?.loaded) return;
const content = pageState.el.querySelector('.page-content');
if (!content) return;
content.querySelector('.search-hit-layer')?.remove();
const exactRect = getExactSearchRectFromTextLayer(doc, pageIndex, hit);
const r = exactRect || hit.rect || { x: 0.12, y: 0.45, w: 0.76, h: 0.055 };
if (exactRect) {
hit.rect = exactRect;
}
const layer = document.createElement('div');
layer.className = 'search-hit-layer';
const div = document.createElement('div');
div.className = 'search-hit';
div.style.left = `${r.x * 100}%`;
div.style.top = `${r.y * 100}%`;
div.style.width = `${Math.max(0.02, r.w) * 100}%`;
div.style.height = `${Math.max(0.012, r.h) * 100}%`;
layer.appendChild(div);
content.appendChild(layer);
if (hit.shouldCenter !== false) {
centerSearchHitElement(doc, div, hit);
}
}
function renderLatex(src, displayMode = false) {
const latex = String(src || '').trim();
if (!latex) return '';
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return window.katex.renderToString(latex, {
displayMode,
throwOnError: false,
strict: 'ignore',
trust: false,
output: 'html'
});
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return `<span class="math-error">${escapeHtml(latex)}</span>`;
}
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s = s.replace(/\*\*([^*]+)\*\*/g, '<strong>$1</strong>');
s = s.replace(/__([^_]+)__/g, '<strong>$1</strong>');
s = s.replace(/(?<!\*)\*([^*\n]+)\*(?!\*)/g, '<em>$1</em>');
s = s.replace(/\[([^\]]+)\]\((https?:\/\/[^)\s]+)\)/g, '<a href="$2" target="_blank" rel="noopener noreferrer">$1</a>');
return s;
}
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const input = String(raw || '');
const out = [];
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const flush = () => {
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out.push(renderInlineText(buffer));
buffer = '';
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const end = input.indexOf('\\)', i + 2);
if (end !== -1) {
flush();
out.push(renderLatex(input.slice(i + 2, end), false));
i = end + 2;
continue;
}
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if (input[i] === '$' && input[i + 1] !== '$') {
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const expr = input.slice(i + 1, end);
if (expr.trim()) {
flush();
out.push(renderLatex(expr, false));
i = end + 1;
continue;
}
}
}
buffer += input[i];
i++;
}
flush();
return out.join('');
}
function renderMarkdown(raw) {
const text = String(raw || '').replace(/\r\n/g, '\n').trim();
if (!text) return '';
const lines = text.split('\n');
const out = [];
let inCode = false;
let code = [];
let list = null;
let inMath = false;
let math = [];
const closeList = () => {
if (list) {
out.push(`<${list.type}>${list.items.map(item => `<li>${renderMarkdownInline(item)}</li>`).join('')}</${list.type}>`);
list = null;
}
};
const closeCode = () => {
if (inCode) {
out.push(`<pre><code>${escapeHtml(code.join('\n'))}</code></pre>`);
code = [];
inCode = false;
}
};
const closeMath = () => {
if (inMath) {
out.push(renderLatex(math.join('\n'), true));
math = [];
inMath = false;
}
};
for (const line of lines) {
const trimmed = line.trim();
if (/^\s*```/.test(line)) {
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else { closeList(); inCode = true; code = []; }
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}
if (inCode) { code.push(line); continue; }
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else { inMath = true; math = []; }
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continue;
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math.push(line);
continue;
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closeList();
continue;
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const heading = /^(#{1,4})\s+(.+)$/.exec(line);
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closeList();
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continue;
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closeList();
out.push(`<blockquote>${renderMarkdownInline(quote[1])}</blockquote>`);
continue;
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closeList();
list = { type, items: [] };
}
list.items.push((ul || ol)[1]);
continue;
}
closeList();
out.push(`<p>${renderMarkdownInline(line)}</p>`);
}
closeMath();
closeCode();
closeList();
return out.join('');