:root{color-scheme:light dark;--bg:#f7f3eb;--paper:#fffdf8;--ink:#202124;--muted:#6b6258;--line:#ded4c4;--accent:#245b56}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Arial,"PingFang SC","Noto Sans CJK SC",sans-serif;line-height:1.78}
.topbar{position:sticky;top:0;z-index:2;display:flex;gap:14px;align-items:center;flex-wrap:wrap;padding:10px 16px;border-bottom:1px solid var(--line);background:rgba(247,243,235,.94);backdrop-filter:blur(8px)}
.topbar a,.topbar button{color:var(--accent);font-weight:700;text-decoration:none;background:transparent;border:1px solid var(--line);border-radius:6px;padding:6px 10px;font-size:14px}
#markCount,#progressText{color:var(--muted);font-size:13px}#progressText{margin-left:auto}.page{max-width:820px;margin:0 auto;padding:32px 20px 72px;background:var(--paper);min-height:100vh}
h1{font-size:30px;line-height:1.3;margin:0 0 24px}h2{font-size:22px;line-height:1.45;margin:32px 0 12px;border-left:4px solid var(--accent);padding-left:12px}h3{font-size:18px;margin:24px 0 8px}
p{margin:12px 0}ul{padding-left:1.4em}li{margin:8px 0}.toc-part{margin:20px 0 28px}.toc-part h2{margin-top:0}.toc a{display:block;color:var(--ink);text-decoration:none;padding:9px 0;border-bottom:1px solid var(--line)}.nav{display:flex;justify-content:space-between;gap:12px;margin-top:36px}.nav a{color:var(--accent);font-weight:700;text-decoration:none}
.reader-markable{border-radius:4px;cursor:pointer;transition:background .15s ease,box-shadow .15s ease,padding-left .15s ease}.reader-markable.marked{background:linear-gradient(transparent 52%,rgba(255,214,82,.68) 52%);box-shadow:inset 3px 0 0 #d6a800;padding-left:8px}
.reader-annotation{border-radius:3px;padding:0 1px}.reader-annotation.highlight-yellow{background:rgba(255,229,89,.82)}.reader-annotation.highlight-green{background:rgba(132,224,151,.72)}.reader-annotation.highlight-blue{background:rgba(126,196,245,.68)}.reader-annotation.highlight-pink{background:rgba(247,150,193,.68)}.reader-annotation.underline{text-decoration:underline;text-decoration-thickness:2px;text-underline-offset:4px;text-decoration-color:#2f6fb6}.reader-annotation.wavy{text-decoration-line:underline;text-decoration-style:wavy;text-decoration-thickness:1.5px;text-underline-offset:5px;text-decoration-color:#2f6fb6}.reader-annotation.strike{text-decoration:line-through;text-decoration-thickness:2px;text-decoration-color:#b33939}.reader-annotation.note{background:rgba(238,231,202,.9);box-shadow:inset 0 -2px 0 #c2a856}.reader-annotation.note::after{content:" 想";font-size:.72em;color:#7a6422;font-weight:800}
#selectionToolbar{position:absolute;z-index:20;display:none;align-items:center;gap:7px;max-width:calc(100vw - 24px);padding:10px 12px;background:rgba(255,253,248,.96);border:1px solid rgba(32,33,36,.12);border-radius:24px;box-shadow:0 12px 36px rgba(0,0,0,.18);transform:translateX(-50%);backdrop-filter:blur(12px)}#selectionToolbar.visible{display:flex}#selectionToolbar button{width:34px;height:34px;border:0;border-radius:50%;background:#f1eee5;color:#245b56;font-weight:800;font-size:13px}#selectionToolbar button[data-cmd^="highlight"]{color:transparent;border:1px solid rgba(0,0,0,.12)}#selectionToolbar button[data-cmd="highlight-yellow"]{background:#ffe75f}#selectionToolbar button[data-cmd="highlight-green"]{background:#8be09a}#selectionToolbar button[data-cmd="highlight-blue"]{background:#8ecbf4}#selectionToolbar button[data-cmd="highlight-pink"]{background:#f5a0c7}#selectionToolbar button[data-cmd="delete"]{color:#b33939}#selectionToolbar button[data-cmd="note"]{color:#7a6422}
@media(max-width:640px){.page{padding:24px 16px 60px}h1{font-size:24px}.topbar{gap:8px}.topbar a,.topbar button{font-size:13px;padding:5px 8px}#progressText{margin-left:0}}
@media(max-width:640px){#selectionToolbar{position:fixed;left:50%!important;right:auto;top:auto!important;bottom:86px;flex-wrap:wrap;justify-content:center;border-radius:22px}#selectionToolbar button{width:32px;height:32px}}
@media(prefers-color-scheme:dark){:root{--bg:#171717;--paper:#202020;--ink:#efeee9;--muted:#aaa49a;--line:#3b3730;--accent:#8fc7bd}.topbar{background:rgba(23,23,23,.94)}#selectionToolbar{background:rgba(32,32,32,.96);border-color:rgba(255,255,255,.12)}#selectionToolbar button{background:#34312c;color:#8fc7bd}}