:root{--font-ui: "Ubuntu", system-ui, -apple-system, sans-serif;--font-jp: "Noto Sans JP", "BIZ UDPGothic", "Hiragino Sans", "Hiragino Kaku Gothic ProN", sans-serif;--bg: #101010;--text: #e5e5e5;--text-muted: #888888;--border: #262626;--accent: #38bdf8;--accent-glow: rgba(56, 189, 248, .4);--word-highlight-bg: rgba(56, 189, 248, .16);--dialogue-border: #38bdf8;--dialogue-bg: #161616;--floating-bg: #181818;--floating-border: #2e2e2e;--floating-hover: #222222}[data-theme=light]{--bg: #f7f4eb;--text: #21201c;--text-muted: #646059;--border: #dfd8c8;--accent: #0284c7;--accent-glow: rgba(2, 132, 199, .28);--word-highlight-bg: rgba(2, 132, 199, .14);--dialogue-border: #0284c7;--dialogue-bg: #efe9dc;--floating-bg: #f2ece0;--floating-border: #dfd8c8;--floating-hover: #e8e2d4}@media(prefers-color-scheme:light){:root:not([data-theme=dark]){--bg: #f7f4eb;--text: #21201c;--text-muted: #646059;--border: #dfd8c8;--accent: #0284c7;--accent-glow: rgba(2, 132, 199, .28);--word-highlight-bg: rgba(2, 132, 199, .14);--dialogue-border: #0284c7;--dialogue-bg: #efe9dc;--floating-bg: #f2ece0;--floating-border: #dfd8c8;--floating-hover: #e8e2d4}}*,*:before,*:after{box-sizing:border-box}html,body{margin:0;padding:0;background-color:var(--bg);color:var(--text);font-family:var(--font-jp);min-height:100vh;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}.reader-container{width:100%;max-width:48rem;margin:0 auto;padding:4.5rem 1.5rem 7rem;display:flex;flex-direction:column}.reader-content{display:flex;flex-direction:column}.jp-prose{font-family:var(--font-jp);font-weight:500;font-size:1.23rem;line-height:2.2;letter-spacing:.04em;margin:0 0 2.25rem;text-align:justify;text-justify:inter-ideograph;color:var(--text)}.jp-prose:last-child{margin-bottom:0}.word-token{display:inline;transition:color 98ms ease-in-out,background-color 98ms ease-in-out,text-shadow 98ms ease-in-out;border-radius:3px;padding:0 1px}.word-token.clickable{cursor:pointer}.word-token.clickable:hover:not(.active){background-color:#38bdf814}.word-token.active{color:var(--accent);background-color:var(--word-highlight-bg);text-shadow:0 0 10px var(--accent-glow)}ruby.jp-ruby{ruby-position:over;ruby-align:center}rt.jp-rt{font-size:.52em;line-height:1;font-weight:500;color:var(--text-muted);-webkit-user-select:none;user-select:none;transition:color 98ms ease-in-out}.word-token.active rt.jp-rt{color:var(--accent);text-shadow:0 0 6px var(--accent-glow)}.dialogue-box{margin:1.75rem 0 2.25rem;padding:.85rem 1.15rem;background-color:var(--dialogue-bg);border-left:3px solid var(--dialogue-border);border-radius:0 4px 4px 0;font-family:var(--font-jp);font-weight:500;font-size:1.17rem;line-height:1.9;color:var(--text)}.floating-audio-container{position:fixed;right:2rem;bottom:2rem;z-index:100;display:flex;align-items:center;gap:.65rem}.btn-floating-stop{background-color:var(--floating-bg);border:1px solid var(--floating-border);color:var(--text-muted);border-radius:9999px;padding:.65rem;width:2.6rem;height:2.6rem;cursor:pointer;display:flex;align-items:center;justify-content:center;box-shadow:0 4px 16px #00000040;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);transition:background-color .15s ease,border-color .15s ease,transform .1s ease,color .15s ease;animation:btnFadeIn .15s ease-out}.btn-floating-stop:hover{background-color:var(--floating-hover);color:#f87171;border-color:#f8717166;transform:translateY(-2px)}.btn-floating-stop svg{width:.95rem;height:.95rem;fill:currentColor}.btn-floating-audio{background-color:var(--floating-bg);border:1px solid var(--floating-border);color:var(--text);border-radius:9999px;padding:.65rem 1.15rem;cursor:pointer;display:flex;align-items:center;gap:.55rem;font-family:var(--font-ui),var(--font-jp);font-size:.9rem;font-weight:500;box-shadow:0 4px 16px #00000040;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);transition:background-color .15s ease,border-color .15s ease,transform .1s ease,color .15s ease}.btn-floating-audio:hover{background-color:var(--floating-hover);border-color:var(--text-muted);transform:translateY(-2px)}.btn-floating-audio.active{border-color:var(--accent);color:var(--accent)}.btn-floating-audio svg{width:1.1rem;height:1.1rem;fill:currentColor}@keyframes btnFadeIn{0%{opacity:0;transform:scale(.9)}to{opacity:1;transform:scale(1)}}