:root{color-scheme:light;--bg:#f8faf9;--surface:#fff;--ink:#203031;--muted:#657877;--line:#dce5e3;--accent:#236e70;--soft:#e8f2ef;--font-size:20px;--line-height:1.85;--ui:-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei",sans-serif;--serif:Georgia,"Times New Roman",serif}
:root[data-theme=dark]{color-scheme:dark;--bg:#151e20;--surface:#1c282a;--ink:#dfe9e7;--muted:#9eafac;--line:#354648;--accent:#a1d8cf;--soft:#263c3b}
@media(prefers-color-scheme:dark){:root:not([data-theme=light]){color-scheme:dark;--bg:#151e20;--surface:#1c282a;--ink:#dfe9e7;--muted:#9eafac;--line:#354648;--accent:#a1d8cf;--soft:#263c3b}}
*{box-sizing:border-box}html{scroll-padding-top:90px;overflow-anchor:none}body{margin:0;background:var(--bg);color:var(--ink);font:15px/1.5 var(--ui);-webkit-text-size-adjust:100%}button,input,select{font:inherit;color:inherit}button{cursor:pointer;touch-action:manipulation}button:disabled{cursor:default;opacity:.4}button:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{outline:2px solid var(--accent);outline-offset:4px}button{border:0;background:none}button:hover:not(:disabled){filter:brightness(.92)}[hidden]{display:none!important}.skip{position:fixed;left:16px;top:-80px;z-index:50;background:var(--surface);padding:12px;color:var(--accent)}.skip:focus{top:12px}
.topbar{height:calc(78px + env(safe-area-inset-top));padding:env(safe-area-inset-top) max(28px,env(safe-area-inset-right)) 0 max(28px,env(safe-area-inset-left));display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line);position:sticky;top:0;background:var(--bg);z-index:5}.book-button{display:flex;gap:13px;align-items:center;text-align:left;padding:6px 0;font-size:16px;font-weight:600;letter-spacing:.05em}.book-button small{display:block;font-size:9px;letter-spacing:.14em;font-weight:500;color:var(--muted);margin-top:3px}.book-mark{width:35px;height:40px;display:grid;place-items:center;background:var(--accent);color:var(--bg);border-radius:3px;font:36px/1 var(--serif)}nav{display:flex;align-items:center;gap:16px}.tool{min-height:44px;min-width:44px;padding:8px;color:var(--muted);font-size:13px}.tool span#wordCount{display:inline-block;min-width:19px;font-size:11px;color:var(--accent)}.type-icon{font:24px var(--serif);color:var(--ink)}
main{max-width:760px;margin:0 auto;padding:64px 36px 120px}main:focus{outline:none}.chapter-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;color:var(--muted);font-size:11px;letter-spacing:.12em;margin-bottom:22px}article h1{font:normal 39px/1.2 var(--serif);letter-spacing:-.025em;max-width:620px;margin:0}.chapter-rule{height:3px;width:44px;background:var(--accent);margin:28px 0 35px}#prose{font-family:var(--serif);font-size:var(--font-size);line-height:var(--line-height);overflow-wrap:break-word}#prose p{margin:0 0 1.1em}#prose strong{font-weight:700}.word{display:inline;margin:0;padding:0;border:0;border-radius:0;background:none;color:inherit;font:inherit;letter-spacing:inherit;line-height:inherit;text-align:inherit;white-space:normal;vertical-align:baseline;-webkit-appearance:none;appearance:none;overflow-wrap:anywhere}.word:hover{color:var(--accent);filter:none!important}.word.selected{background:var(--soft);color:var(--accent);box-shadow:0 2px var(--accent)}[data-marked=true] .word{text-decoration:underline;text-decoration-color:var(--line);text-decoration-thickness:1px;text-underline-offset:.2em}.chapter-end{border-top:1px solid var(--line);margin-top:50px;padding-top:32px;text-align:center;color:var(--muted);font-size:12px}.chapter-end>div{display:flex;justify-content:space-between;gap:20px;margin-top:22px}.primary,.secondary{min-height:44px;padding:10px 18px;border-radius:7px;font-size:14px}.primary{background:var(--accent);color:var(--bg)}.secondary{background:var(--soft);color:var(--accent)}.full{width:100%}
.reading-footer{height:calc(45px + env(safe-area-inset-bottom));padding:0 max(28px,env(safe-area-inset-right)) env(safe-area-inset-bottom) max(28px,env(safe-area-inset-left));position:fixed;bottom:0;left:0;width:100%;z-index:4;background:var(--bg);border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:12px;color:var(--muted);font-size:11px}.reading-footer button{min-height:44px;padding:0 10px;color:var(--accent)}.progress-track{position:absolute;left:0;top:-1px;width:100%;height:2px}#progressFill{height:100%;width:0;background:var(--accent)}.loading{padding:100px 24px;text-align:center;color:var(--muted)}.loading button{display:block;margin:20px auto}
dialog{color:var(--ink);border:1px solid var(--line);background:var(--surface);box-shadow:0 20px 80px #0003}dialog::backdrop{background:rgb(12 28 30 / .28);backdrop-filter:blur(3px)}.panel{width:min(480px,calc(100% - 32px));max-height:calc(100dvh - 64px);padding:26px;border-radius:16px;overscroll-behavior:contain}.panel-heading{display:flex;align-items:center;justify-content:space-between;gap:15px;margin-bottom:22px}.eyebrow{font-size:10px;letter-spacing:.14em;color:var(--muted)}h2{font-size:22px;font-weight:600;margin:4px 0 0}h3{font-size:14px;margin:0 0 8px;font-weight:600}.close{width:44px;min-width:44px;height:44px;font-size:28px;color:var(--muted);line-height:1}.search{width:100%;padding:13px 14px;min-height:46px;border:1px solid var(--line);border-radius:7px;background:var(--bg);font-size:14px;margin-bottom:18px}.chapter-list{display:grid;gap:3px}.chapter-item{width:100%;text-align:left;padding:13px 10px;display:flex;gap:13px;align-items:baseline;border-radius:6px}.chapter-item[aria-current=true]{background:var(--soft);color:var(--accent)}.chapter-item>span:first-child{font-size:11px;min-width:25px;color:var(--muted)}.chapter-item>span:last-child{font:17px/1.4 var(--serif)}.empty{padding:30px 4px;color:var(--muted);text-align:center;font-size:14px}
.setting-row{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:17px 0;border-bottom:1px solid var(--line);font-size:14px}.stepper{display:flex;gap:12px;align-items:center}.stepper button{height:44px;width:44px;border-radius:6px;background:var(--soft);font-size:20px}.stepper output{width:26px;text-align:center;font-variant-numeric:tabular-nums}select{padding:9px 12px;border:1px solid var(--line);border-radius:6px;background:var(--bg)}fieldset{border:0;padding:20px 0 5px;margin:0}legend{float:left;width:100%;font-size:14px;margin-bottom:13px}.segmented{display:flex;clear:both;padding:4px;gap:4px;background:var(--bg);border:1px solid var(--line);border-radius:7px}.segmented button{min-height:40px;flex:1;font-size:13px;padding:8px}.segmented button[aria-pressed=true]{background:var(--accent);color:var(--bg);border-radius:4px}input[type=checkbox]{width:22px;height:22px;accent-color:var(--accent)}.setting-section{padding-top:23px;margin-top:3px}.setting-section p,.install-help p{font-size:12px;line-height:1.8;color:var(--muted);margin:0 0 13px}.backup-actions{display:flex;gap:12px}.backup-actions button{flex:1}.install-help{border-top:1px solid var(--line);padding-top:19px;margin-top:25px;font-size:13px}.install-help summary{cursor:pointer;min-height:34px}progress{width:100%;height:6px;margin-top:16px;accent-color:var(--accent)}
.gloss-panel{position:fixed;inset:auto;margin:0;width:340px;padding:18px 24px 24px;border-radius:12px;max-height:75dvh;overflow:auto}.gloss-panel::backdrop{background:transparent;backdrop-filter:none}.gloss-top{display:flex;align-items:center;justify-content:space-between;margin-top:-7px}.gloss-panel h2{font:28px/1.2 var(--serif);overflow-wrap:anywhere;margin:0 0 10px}.gloss-panel p{font-size:16px;line-height:1.8;margin:0 0 18px;overflow-wrap:anywhere}.gloss-panel .secondary{width:100%}.saved-item{padding:17px 0;border-bottom:1px solid var(--line)}.saved-item h3{font:21px var(--serif);margin:0 0 6px;overflow-wrap:anywhere}.saved-item p{font-size:14px;margin:0 0 8px;overflow-wrap:anywhere}.saved-item small{font-size:11px;color:var(--muted)}.saved-actions{display:flex;justify-content:space-between;margin-top:8px}.saved-actions button{font-size:12px;color:var(--accent);min-height:40px;padding:7px 10px}.toast{position:fixed;z-index:30;left:50%;bottom:calc(65px + env(safe-area-inset-bottom));transform:translateX(-50%);max-width:calc(100% - 40px);width:max-content;background:var(--ink);color:var(--bg);padding:12px 20px;border-radius:8px;font-size:13px;box-shadow:0 5px 25px #0002}
@media(min-width:1100px){.topbar{padding-left:48px;padding-right:48px}main{padding-top:74px}.reading-footer{padding-left:48px;padding-right:48px}}
@media(max-width:600px){.topbar{height:calc(68px + env(safe-area-inset-top));padding-left:max(18px,env(safe-area-inset-left));padding-right:max(14px,env(safe-area-inset-right))}.book-button{font-size:14px;gap:10px}.book-button small{font-size:8px}.book-mark{width:29px;height:34px;font-size:29px}nav{gap:2px}.tool{font-size:12px}.tool span#wordCount{min-width:13px}main{padding:39px max(23px,env(safe-area-inset-right)) 100px max(23px,env(safe-area-inset-left))}.chapter-meta{font-size:10px;margin-bottom:20px;letter-spacing:.08em}article h1{font-size:32px;line-height:1.22}.chapter-rule{margin:24px 0 29px;width:32px}.reading-footer{padding-left:14px;padding-right:20px;font-size:10px}.panel{width:100%;max-height:calc(100dvh - 55px - env(safe-area-inset-top));margin:auto 0 0;border-radius:18px 18px 0 0;padding:24px 23px max(26px,env(safe-area-inset-bottom))}.gloss-panel{inset:auto 0 0!important;width:100%;max-height:70dvh;border-radius:18px 18px 0 0;padding:16px 25px max(24px,env(safe-area-inset-bottom))}.gloss-panel h2{font-size:27px}.chapter-end>div{gap:12px}}
.word{cursor:pointer;touch-action:manipulation}.word:focus-visible{outline:2px solid var(--accent);outline-offset:3px}html{scrollbar-gutter:stable}dialog{max-width:100%}
@media(prefers-reduced-motion:no-preference){.toast{animation:appear .15s ease-out}@keyframes appear{from{opacity:0}to{opacity:1}}}