:root{--lx-bg-canvas: #ECE8DD;--lx-bg-topbar: #FBF8F0;--lx-bg-sidebar: #20352C;--lx-login-bg: #20352C;--lx-bg-surface: #FFFDF8;--lx-bg-surface-subtle: #F8F4EA;--lx-bg-board-card: #36463E;--lx-text-primary: #2F4037;--lx-text-secondary: #68796F;--lx-text-inverse: #F7F3E8;--lx-login-sub: #C4D0C8;--lx-accent-warm: #AD7830;--lx-accent-river: #4F7182;--lx-border: #C8CEC4;--lx-danger-soft: #A15F57;--lx-question-well: #E6E3D8;--lx-question-group: #EFEBE1;--lx-question-answer: #20352C;--lx-river-water: #CBDAD6;--lx-highlight: #CBDAD6;--lx-highlight-strong: #4F7182;--lx-inverse-border: rgba(247, 243, 232, .16);--lx-inverse-secondary: rgba(247, 243, 232, .62);--lx-font-serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "SimSun", serif;--lx-font-sans: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;--lx-font-mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;--lx-type-display: 31px;--lx-type-title: 28px;--lx-type-section: 22px;--lx-type-reading: 16px;--lx-type-body: 15px;--lx-type-meta: 13px;--lx-type-action: 14.5px;--lx-r-btn: 8px;--lx-r-card: 12px;--lx-r-panel: 16px}:root[data-theme=mulan]{--lx-bg-canvas: #101A2A;--lx-bg-topbar: #152238;--lx-bg-sidebar: #081421;--lx-login-bg: #0D1929;--lx-bg-surface: #EDF1F1;--lx-bg-surface-subtle: #DBE3E6;--lx-bg-board-card: #152238;--lx-text-primary: #263743;--lx-text-secondary: #5E7181;--lx-text-inverse: #E8EEF2;--lx-login-sub: rgba(232, 238, 242, .66);--lx-accent-warm: #D6AA58;--lx-accent-river: #5B8196;--lx-border: #C2CDD2;--lx-danger-soft: #A15F57;--lx-question-well: #DBE3E6;--lx-question-group: #CCD8DE;--lx-question-answer: #14243A;--lx-river-water: #CCD8DE;--lx-highlight: #D7E3E7;--lx-highlight-strong: #5F8296;--lx-inverse-border: rgba(232, 238, 242, .16);--lx-inverse-secondary: rgba(232, 238, 242, .62)}:root[data-theme=nuanxing]{--lx-bg-canvas: #302629;--lx-bg-topbar: #3B2E31;--lx-bg-sidebar: #1E1724;--lx-login-bg: #2E252A;--lx-bg-surface: #F4E8DA;--lx-bg-surface-subtle: #E7D5C7;--lx-bg-board-card: #49373A;--lx-text-primary: #4A383A;--lx-text-secondary: #6F5B58;--lx-text-inverse: #F4EBDF;--lx-login-sub: #C7B5AA;--lx-accent-warm: #DDA94F;--lx-accent-river: #6A6277;--lx-border: #BDA89C;--lx-danger-soft: #965754;--lx-question-well: #E6D8CB;--lx-question-group: #D9C7BA;--lx-question-answer: #241B27;--lx-river-water: #CEC3CD;--lx-highlight: #EBCFA7;--lx-highlight-strong: #A76F31;--lx-inverse-border: rgba(244, 235, 223, .17);--lx-inverse-secondary: rgba(244, 235, 223, .66)}*{box-sizing:border-box}html,body,#root{height:100%}body{margin:0;background:var(--lx-bg-canvas);color:var(--lx-text-primary);font-family:var(--lx-font-sans);font-size:var(--lx-type-body);font-weight:400;line-height:1.7;-webkit-font-smoothing:antialiased}:root:is([data-theme=mulan],[data-theme=nuanxing]) body{color:var(--lx-text-inverse)}a{color:var(--lx-accent-warm);text-decoration:none}button{font-family:var(--lx-font-sans);cursor:pointer;font-weight:400}:focus-visible{outline:2px solid var(--lx-accent-warm);outline-offset:2px;border-radius:2px}.login-room{min-height:100%;display:grid;place-items:center;padding:24px;background:var(--lx-login-bg);color:var(--lx-text-inverse)}.login-card{width:min(360px,100%);text-align:center}.lamp-glow{width:14px;height:14px;margin:0 auto 28px;border-radius:50%;background:var(--lx-accent-warm);box-shadow:0 0 24px 10px #ad783029,0 0 60px 26px #ad783012;box-shadow:0 0 24px 10px color-mix(in srgb,var(--lx-accent-warm) 16%,transparent),0 0 60px 26px color-mix(in srgb,var(--lx-accent-warm) 7%,transparent);animation:breathe 4.5s ease-in-out infinite}@keyframes breathe{0%,to{box-shadow:0 0 24px 10px #ad783029,0 0 60px 26px #ad783012;box-shadow:0 0 24px 10px color-mix(in srgb,var(--lx-accent-warm) 16%,transparent),0 0 60px 26px color-mix(in srgb,var(--lx-accent-warm) 7%,transparent)}50%{box-shadow:0 0 30px 14px #ad78303d,0 0 80px 34px #ad78301a;box-shadow:0 0 30px 14px color-mix(in srgb,var(--lx-accent-warm) 24%,transparent),0 0 80px 34px color-mix(in srgb,var(--lx-accent-warm) 10%,transparent)}}.login-title{font-family:var(--lx-font-serif);font-size:44px;font-weight:400;letter-spacing:.35em;text-indent:.35em;margin:0 0 6px;color:var(--lx-text-inverse)}.login-sub{color:var(--lx-login-sub);font-size:var(--lx-type-body);letter-spacing:.08em;margin:0 0 40px}.login-form{display:grid;gap:14px}.key-input{background:#00000040;border:1px solid var(--lx-inverse-border);border-radius:var(--lx-r-btn);color:var(--lx-text-inverse);font-family:var(--lx-font-mono);font-size:15px;letter-spacing:.06em;padding:12px 14px;text-align:center}.key-input::placeholder{color:var(--lx-login-sub);font-family:var(--lx-font-sans);letter-spacing:.1em}.key-input:focus{border-color:var(--lx-accent-warm);outline:none}.enter-btn{background:transparent;border:1px solid var(--lx-accent-warm);border-radius:var(--lx-r-btn);color:var(--lx-accent-warm);font-size:15px;font-weight:500;letter-spacing:.3em;text-indent:.3em;padding:11px;transition:background .25s,color .25s}.enter-btn:hover,.enter-btn:focus-visible{background:var(--lx-accent-warm);color:var(--lx-bg-surface)}.enter-btn:disabled{opacity:.5;cursor:wait}.login-error{color:var(--lx-danger-soft);font-size:var(--lx-type-body);min-height:20px;margin:0}.shell{display:flex;min-height:100%}.sidebar{width:196px;flex:0 0 196px;background:var(--lx-bg-sidebar);color:var(--lx-text-inverse);display:flex;flex-direction:column;padding:26px 0 18px;position:sticky;top:0;height:100vh}.brand{display:flex;align-items:center;gap:10px;padding:0 22px 26px}.brand-name{font-family:var(--lx-font-serif);font-size:21px;letter-spacing:.3em;color:var(--lx-text-inverse)}.nav{display:flex;flex-direction:column;gap:2px;padding:0 10px}.nav-item{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:var(--lx-r-btn);color:var(--lx-inverse-secondary);font-size:15.5px;letter-spacing:.05em;background:transparent;border:none;text-align:left}.nav-icon{display:inline-block;width:20px;text-align:center;flex:0 0 20px}.nav-item.active{color:var(--lx-accent-warm);background:#00000038}.nav-item:hover:not(.active):not(:disabled){color:var(--lx-text-inverse)}.nav-item:disabled{cursor:default;opacity:.5}.nav-tag{margin-left:auto;font-size:var(--lx-type-meta);color:var(--lx-inverse-secondary);border:1px solid var(--lx-inverse-border);border-radius:3px;padding:0 4px}.nav-badge{margin-left:auto;min-width:20px;text-align:center;font-size:var(--lx-type-meta);line-height:1.6;color:var(--lx-bg-sidebar);background:var(--lx-accent-warm);border-radius:999px;padding:0 6px;font-weight:500}.tab-icon{position:relative}.tab-dot{position:absolute;top:-2px;right:-7px;width:7px;height:7px;border-radius:50%;background:var(--lx-accent-warm)}.sidebar-foot{margin-top:auto;padding:16px 22px 0;border-top:1px solid var(--lx-inverse-border);font-size:var(--lx-type-body);color:var(--lx-inverse-secondary);display:grid;grid-template-columns:1fr auto;align-items:center;gap:10px 8px}.sidebar-foot>.leave-btn{grid-column:1 / -1;justify-self:start;padding-left:0}.leave-btn{background:none;border:none;color:var(--lx-text-secondary);font-size:var(--lx-type-body);padding:4px}.sidebar .leave-btn,.mobile-top .leave-btn{color:var(--lx-inverse-secondary)}.leave-btn:hover{color:var(--lx-accent-warm)}.theme-btn{background:none;border:1px solid var(--lx-inverse-border);color:var(--lx-inverse-secondary);border-radius:999px;padding:2px 10px;font-size:var(--lx-type-meta);letter-spacing:.08em}.theme-btn:hover{color:var(--lx-accent-warm);border-color:var(--lx-accent-warm)}.main{flex:1;padding:44px clamp(20px,5vw,64px) 90px;max-width:1080px}.page-title{font-family:var(--lx-font-serif);font-size:var(--lx-type-display);font-weight:400;letter-spacing:.2em;line-height:1.45;margin:0 0 6px}.page-sub{color:var(--lx-text-secondary);font-size:var(--lx-type-body);margin:0 0 36px}:root:is([data-theme=mulan],[data-theme=nuanxing]) .main .page-sub{color:var(--lx-inverse-secondary)}.tabbar{display:none}@media (max-width: 767px){.sidebar{display:none}.main{padding:24px 18px 96px}.mobile-top{display:flex;align-items:center;gap:10px;position:sticky;top:0;z-index:20;background:var(--lx-bg-sidebar);color:var(--lx-text-inverse);margin:-24px -18px 18px;padding:12px 18px}.mobile-top .brand-name{color:var(--lx-text-inverse)}.mobile-name{font-size:var(--lx-type-body);color:var(--lx-inverse-secondary);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.tabbar{display:flex;position:fixed;left:0;right:0;bottom:0;background:var(--lx-bg-sidebar);border-top:1px solid var(--lx-inverse-border);padding:6px 4px calc(6px + env(safe-area-inset-bottom));z-index:10}.tab-item{flex:1;background:none;border:none;color:var(--lx-inverse-secondary);font-size:var(--lx-type-meta);display:grid;justify-items:center;gap:3px;padding:6px 0 4px}.tab-item.active{color:var(--lx-accent-warm)}.tab-item:disabled{opacity:.5}.tab-icon{font-size:16px;line-height:1}}@media (min-width: 768px){.mobile-top{display:none}}.loading-line{color:var(--lx-text-secondary);font-size:var(--lx-type-body)}:root:is([data-theme=mulan],[data-theme=nuanxing]) .main .loading-line{color:var(--lx-inverse-secondary)}.wip{color:var(--lx-text-secondary);border-left:2px solid var(--lx-border);padding-left:18px;font-size:var(--lx-type-body);line-height:2.2}.page-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;flex-wrap:wrap}.page-btn{background:var(--lx-bg-surface);border:1px solid var(--lx-border);color:var(--lx-text-primary);padding:8px 20px;border-radius:var(--lx-r-btn);font-size:var(--lx-type-action);font-weight:500;transition:border-color .25s,color .25s}.page-btn:hover{border-color:var(--lx-accent-warm);color:var(--lx-accent-warm)}.toast{position:fixed;left:50%;bottom:84px;transform:translate(-50%);background:var(--lx-bg-surface);border:1px solid var(--lx-accent-warm);color:var(--lx-text-primary);border-radius:999px;padding:8px 18px;font-size:var(--lx-type-body);z-index:70}.drawer-mask{position:fixed;inset:0;background:#0000006b;z-index:50}@media (prefers-reduced-motion: reduce){*{animation:none!important;transition:none!important}}.shelf-add{width:auto;padding:9px 18px;font-size:var(--lx-type-action)}.shelf-notice{color:var(--lx-accent-warm);font-size:var(--lx-type-body);white-space:pre-line}.shelf-head-btns{display:flex;align-items:center;gap:10px;flex-wrap:wrap}.shelf-mig{white-space:nowrap}.shelf-row{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:28px 24px;margin-top:20px;align-items:start}@media (max-width: 767px){.shelf-row{grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:22px 16px}}.book-wrap{position:relative}.book-card{display:flex;flex-direction:column;gap:8px;text-align:left;background:none;border:none;padding:0;cursor:pointer;color:inherit;width:100%}.book-cover-box{position:relative;width:100%;padding-top:150%;border-radius:6px;overflow:hidden;background:var(--lx-bg-surface);border:1px solid var(--lx-border);box-shadow:0 10px 22px -16px #0000008c}.book-cover{position:absolute;top:0;left:0;width:100%;height:100%;object-fit:cover}.book-cover--blank{display:flex;align-items:center;justify-content:center;font-family:var(--lx-font-serif);font-size:30px;color:var(--lx-text-secondary);letter-spacing:.1em}.book-card:hover .book-cover-box{border-color:var(--lx-accent-warm)}.book-card:focus-visible{outline:2px solid var(--lx-accent-warm);outline-offset:4px;border-radius:4px}.book-title{font-size:var(--lx-type-body);line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.book-author{font-size:var(--lx-type-meta);color:var(--lx-text-secondary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:100%}:root:is([data-theme=mulan],[data-theme=nuanxing]) .book-author{color:var(--lx-inverse-secondary)}.share-btn{position:absolute;top:6px;right:6px;z-index:2;background:var(--lx-bg-surface);border:1px solid var(--lx-border);color:var(--lx-text-secondary);border-radius:999px;width:28px;height:28px;font-size:14px;line-height:1;opacity:0;transition:opacity .2s,color .2s,border-color .2s}.book-wrap:hover .share-btn,.share-btn:focus-visible{opacity:1}.share-btn:hover{color:var(--lx-accent-warm);border-color:var(--lx-accent-warm)}@media (hover: none){.share-btn{opacity:1}}.shelf-empty{border:1px dashed var(--lx-border);border-radius:var(--lx-r-card);padding:52px 24px;text-align:center;color:var(--lx-text-secondary);font-size:var(--lx-type-body);line-height:2.1;background:var(--lx-bg-surface-subtle)}.shelf-empty .em{color:var(--lx-text-primary);font-family:var(--lx-font-serif);letter-spacing:.12em;font-size:16.5px}.shelf-empty--invite{display:block;width:100%;cursor:pointer;transition:border-color .25s}.shelf-empty--invite:hover{border-color:var(--lx-accent-warm)}.reader-room{position:fixed;inset:0;z-index:30;display:flex;flex-direction:column;background:var(--lx-bg-canvas)}.reader-bar{display:flex;align-items:center;gap:12px;padding:10px 16px;background:var(--lx-bg-sidebar);background:repeating-linear-gradient(0deg,rgba(255,255,255,.028) 0 1px,transparent 1px 3px),repeating-linear-gradient(90deg,rgba(0,0,0,.05) 0 1px,transparent 1px 3px),var(--lx-bg-sidebar);color:var(--lx-text-inverse)}.reader-title{font-family:var(--lx-font-serif);font-size:16.5px;letter-spacing:.02em;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;flex:1}.reader-progress{font-family:var(--lx-font-mono);font-size:var(--lx-type-meta);color:var(--lx-inverse-secondary);white-space:nowrap}.reader-chapter{color:var(--lx-accent-warm);font-family:var(--lx-font-sans);font-size:.88em;opacity:.92}.reader-track{height:3px;background:#ffffff21}.reader-fill{height:100%;background:var(--lx-accent-river);transition:width .35s ease}:root:is([data-theme=mulan],[data-theme=nuanxing]) .reader-fill{background:var(--lx-river-water)}.reader-stage{flex:1;min-height:0;background:var(--lx-bg-surface);position:relative}.reader-stage .loading-line,.reader-stage .login-error{padding:40px}.reader-host{position:absolute;inset:0}.reader-overlay{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;text-align:center}.reader-nav{display:flex;gap:10px;padding:10px 16px;background:var(--lx-bg-sidebar);background:repeating-linear-gradient(0deg,rgba(255,255,255,.028) 0 1px,transparent 1px 3px),repeating-linear-gradient(90deg,rgba(0,0,0,.05) 0 1px,transparent 1px 3px),var(--lx-bg-sidebar);justify-content:center;color:var(--lx-text-inverse)}foliate-view{display:block;width:100%;height:100%}.reader-bar .leave-btn{color:var(--lx-inverse-secondary)}.reader-bar .leave-btn:hover{color:var(--lx-accent-warm)}.reader-bar .font-btn,.reader-nav .page-btn{background:transparent;border-color:var(--lx-inverse-border);color:var(--lx-text-inverse)}.reader-bar .font-btn:hover:not(:disabled),.reader-nav .page-btn:hover{border-color:var(--lx-accent-warm);color:var(--lx-accent-warm)}.reader-bar .star-btn{border-color:var(--lx-inverse-border)}.reader-bar .font-now{color:var(--lx-inverse-secondary)}.reader-bar .pdf-tag{color:var(--lx-inverse-secondary);border-color:var(--lx-inverse-border)}.star-btn{background:none;border:1px solid var(--lx-border);color:var(--lx-accent-warm);border-radius:999px;padding:4px 12px;font-size:var(--lx-type-body)}.note-btn{color:var(--lx-accent-river)}.pdf-tag{font-size:var(--lx-type-meta);color:var(--lx-text-secondary);border:1px solid var(--lx-border);border-radius:999px;padding:2px 10px;white-space:nowrap}.font-ctl{display:flex;align-items:center;gap:6px}.font-btn{background:none;border:1px solid var(--lx-border);color:var(--lx-text-primary);border-radius:var(--lx-r-btn);padding:3px 8px;font-size:var(--lx-type-body);line-height:1.4}.font-btn:hover:not(:disabled){border-color:var(--lx-accent-warm);color:var(--lx-accent-warm)}.font-btn:disabled{opacity:.4;cursor:default}.font-now{font-family:var(--lx-font-mono);font-size:var(--lx-type-meta);color:var(--lx-text-secondary);min-width:38px;text-align:center}@media (max-width: 480px){.font-now{display:none}}.mark-panel{position:fixed;transform:translate(-50%);z-index:60;background:var(--lx-bg-surface);border:1px solid var(--lx-border);border-radius:var(--lx-r-card);color:var(--lx-text-primary);padding:10px 12px;max-width:min(440px,92vw);box-shadow:0 14px 34px -20px #00000080}.mark-oath{margin:0 0 8px;font-size:var(--lx-type-meta);color:var(--lx-text-secondary);letter-spacing:.04em}.mark-actions{display:flex;gap:8px;align-items:center}.mark-primary{border-color:var(--lx-accent-warm);color:var(--lx-accent-warm)}.mark-note{border-color:var(--lx-accent-river);color:var(--lx-accent-river)}.mark-note:hover:not(:disabled){border-color:var(--lx-accent-river);color:var(--lx-accent-river);background:var(--lx-river-water)}.mark-retry{font-size:var(--lx-type-body);color:var(--lx-danger-soft)}.mark-think input{width:min(360px,84vw);background:var(--lx-bg-surface-subtle);border:1px solid var(--lx-border);color:var(--lx-text-primary);border-radius:var(--lx-r-btn);padding:8px 10px;font-size:16px;font-family:var(--lx-font-serif);margin-bottom:8px}.mark-think input:focus{border-color:var(--lx-accent-warm);outline:none}.drawer{position:absolute;right:0;top:0;bottom:0;width:min(400px,92vw);background:var(--lx-bg-surface);border-left:1px solid var(--lx-border);color:var(--lx-text-primary);padding:16px;overflow-y:auto}.drawer-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:14px;font-size:15px}.drawer .leave-btn,.drawer .page-sub{color:var(--lx-text-secondary)}.star-item{border-top:1px solid var(--lx-border);padding:14px 0}.star-quote{margin:0 0 8px;font-family:var(--lx-font-serif);font-size:var(--lx-type-reading);line-height:1.9;border-left:2px solid var(--lx-accent-warm);padding-left:10px}.star-feel{margin:6px 0;font-size:var(--lx-type-body);line-height:1.8;font-family:var(--lx-font-serif);white-space:pre-line}.star-feel--old{color:var(--lx-text-secondary)}.star-feel-meta{display:block;font-size:var(--lx-type-meta);color:var(--lx-text-secondary);margin-bottom:2px;font-family:var(--lx-font-sans)}.star-more{background:none;border:none;color:var(--lx-accent-river);font-size:var(--lx-type-body);padding:2px 0;text-decoration:underline}.star-again input{width:100%;background:var(--lx-bg-surface-subtle);border:1px solid var(--lx-border);color:var(--lx-text-primary);border-radius:var(--lx-r-btn);padding:7px 10px;font-size:var(--lx-type-body);margin-top:8px}.star-again input:focus{border-color:var(--lx-accent-warm);outline:none}.note-thread .star-feel{border-left:2px solid var(--lx-accent-river);padding-left:10px}.note-reply{margin-left:18px!important;border-left:2px solid var(--lx-border)!important}.note-goto{margin-left:10px;font-size:var(--lx-type-meta)}.paper-gutter,.paper-edge{display:none;position:absolute;pointer-events:none}@media (min-width: 860px){.paper-gutter{display:block;top:0;bottom:0;left:50%;width:56px;margin-left:-28px;background:linear-gradient(90deg,transparent 0%,rgba(0,0,0,.05) 42%,rgba(0,0,0,.08) 50%,rgba(0,0,0,.05) 58%,transparent 100%)}.paper-edge{display:block;top:12px;bottom:12px;width:7px;opacity:.55;background:repeating-linear-gradient(90deg,var(--lx-border) 0 1px,transparent 1px 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