:root{color:#182235;background:#f3f6fb;font-family:Inter,PingFang SC,Microsoft YaHei,sans-serif}*{box-sizing:border-box}html,body,#app{width:100%;height:100%;margin:0;overflow:hidden}button,input{font:inherit}button{cursor:pointer;-webkit-tap-highlight-color:transparent;border:0}.reader-shell{height:100%;padding-bottom:calc(174px + env(safe-area-inset-bottom));background:linear-gradient(#f8fbff 0%,#eef3fa 100%)}.reader-header{background:#ffffffeb;border-bottom:1px solid #e5eaf1;justify-content:center;align-items:center;height:48px;padding:0 64px;display:flex}.reader-header h1{text-overflow:ellipsis;white-space:nowrap;margin:0;font-size:16px;overflow:hidden}.pdf-stage{height:calc(100vh - 222px - env(safe-area-inset-bottom));touch-action:pan-y;background:#e9eff7;border-radius:18px;justify-content:center;align-items:center;min-height:280px;margin:10px;display:flex;position:relative;overflow:hidden}.pdf-stage canvas{background:#fff;max-width:100%;max-height:100%;display:block;box-shadow:0 10px 34px #1e325024;width:auto!important;height:auto!important}.page-arrow{z-index:4;color:#fff;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);background:#14203394;border-radius:16px;width:46px;min-height:72px;margin-top:-36px;font-size:42px;line-height:1;position:absolute;top:50%}.page-arrow.left{left:12px}.page-arrow.right{right:12px}.page-arrow:disabled{opacity:.22}.page-count{z-index:4;color:#fff;text-align:center;background:#142033a8;border-radius:999px;min-width:76px;padding:7px 14px;font-size:13px;position:absolute;bottom:12px;left:50%;transform:translate(-50%)}.status-layer{z-index:5;color:#56657a;text-align:center;background:#edf3faf0;flex-direction:column;justify-content:center;align-items:center;gap:14px;padding:28px;display:flex;position:absolute;top:0;bottom:0;left:0;right:0}.status-layer[hidden]{display:none}.status-layer button{color:#fff;background:#2563eb;border-radius:999px;min-width:112px;min-height:44px;font-weight:700}.player{z-index:10;right:10px;bottom:calc(10px + env(safe-area-inset-bottom));-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);background:#fffffff5;border:1px solid #d7e0ece6;border-radius:20px;height:154px;padding:14px 16px;position:fixed;left:10px;box-shadow:0 16px 46px #1822352b}.audio-title{color:#334155;text-align:center;text-overflow:ellipsis;white-space:nowrap;font-size:14px;display:block;overflow:hidden}.progress{accent-color:#2563eb;width:100%;height:28px;margin:2px 0 0}.time-row{color:#738197;justify-content:space-between;margin-top:-5px;font-size:11px;display:flex}.player-buttons{justify-content:center;align-items:center;gap:10px;margin-top:8px;display:flex}.player-buttons button{min-height:44px}.mode{color:#1d4ed8;background:#eff6ff;border:1px solid #bfdbfe;border-radius:999px;min-width:92px;padding:0 12px;font-size:12px;font-weight:700}.circle{color:#334155;background:#e8eef6;border-radius:50%;width:48px;font-size:28px}.play{color:#fff;background:#2563eb;border-radius:999px;min-width:104px;padding:0 22px;font-weight:700}.player-buttons button:disabled{opacity:.35}.audio-error{color:#b91c1c;text-align:center;margin:4px 0 0;font-size:11px}@media (orientation:landscape) and (max-height:560px){.reader-shell{padding-bottom:calc(118px + env(safe-area-inset-bottom))}.reader-header{height:40px}.pdf-stage{height:calc(100vh - 158px - env(safe-area-inset-bottom));margin:6px 10px}.player{height:104px;padding:8px 14px}.audio-title{display:none}.progress{height:22px}.player-buttons{margin-top:2px}}