:root{--reader-bg: #ffffff;--reader-fg: #2b2b2b;--reader-muted: #8a8a8a;--reader-link: #1677ff;--reader-surface: #f5f5f5;--reader-font-size: 20px;--reader-font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif}[data-theme=dark]{--reader-bg: #1a1a1a;--reader-fg: #c9c9c9;--reader-muted: #6f6f6f;--reader-link: #4c9bff;--reader-surface: #232323}*,*:before,*:after{box-sizing:border-box}img{max-width:100%}body{margin:0;background:var(--reader-bg);color:var(--reader-fg)}.reader-page{background:var(--reader-bg);min-height:100vh;overflow-x:hidden}.reader-container{max-width:1100px;margin:0 auto;padding:24px}.book-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:16px}.book-cover{display:block;width:100%;aspect-ratio:3 / 4;object-fit:cover}.book-cover--empty{display:flex;align-items:center;justify-content:center;background:var(--reader-surface);color:var(--reader-muted)}.book-card-link,.book-card-link:hover,.book-card-link:focus{color:inherit;text-decoration:none}.book-detail{max-width:880px;display:flex;gap:24px}.reader-header{height:56px;display:flex;align-items:center;justify-content:space-between;padding:0 24px;border-bottom:1px solid rgba(0,0,0,.06);background:var(--reader-bg)}.reader-column{max-width:720px;margin:0 auto;padding:24px 16px 96px;font-size:var(--reader-font-size);font-family:var(--reader-font-family);line-height:1.8;color:var(--reader-fg)}.reader-column p{margin:0 0 1.2em;text-indent:2em}.reader-chapter-title{font-size:1.6em;margin:.4em 0 1.2em;font-weight:600}.reader-nav-link{color:var(--reader-link);cursor:pointer}.reader-toolbar{position:fixed;right:16px;top:50%;transform:translateY(-50%);display:flex;flex-direction:column;gap:12px;z-index:10;transition:opacity .2s ease,transform .2s ease}@media (max-width: 640px){.reader-container{padding:16px 12px}.book-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.book-detail{flex-direction:column;gap:16px}.reader-header{padding:0 12px}.reader-column{padding:20px 16px 112px}.reader-chapter-title{font-size:1.4em}.reader-toolbar{top:auto;bottom:20px;right:12px;transform:none;flex-direction:row;gap:10px}.reader-toolbar.is-hidden{opacity:0;transform:translateY(24px);pointer-events:none}}