:root{--background:#eef3f1;--foreground:#182321;--muted:#65716e;--panel:#fbfcfa;--panel-soft:#f4f7f4;--reader:#fffdf7;--border:#d7dfda;--accent:#0f766e;--accent-strong:#0b4f4a;--focus:#c38a2e;--shadow:0 18px 54px #1e2d271a}@media (prefers-color-scheme:dark){:root{--background:#101715;--foreground:#edf4ef;--muted:#9cad9f;--panel:#17211e;--panel-soft:#1d2925;--reader:#141d1a;--border:#2d3c37;--accent:#4fd1c5;--accent-strong:#8ee4da;--focus:#e3ad4f;--shadow:0 18px 54px #00000047}}*{box-sizing:border-box}body{background:var(--background);min-height:100vh;color:var(--foreground);margin:0;font-family:LXGW WenKai,Noto Serif SC,Songti SC,Georgia,serif}button,input,select{font:inherit}button{border:1px solid var(--border);background:var(--panel);min-height:38px;color:var(--foreground);cursor:pointer;border-radius:8px;transition:border-color .18s,background .18s,transform .18s}button:hover:not(:disabled){border-color:var(--accent);transform:translateY(-1px)}button:disabled{cursor:not-allowed;opacity:.52}button:focus-visible,input:focus-visible,select:focus-visible{outline:2px solid var(--focus);outline-offset:2px}svg{flex:none;width:18px;height:18px}.login-page{background:linear-gradient(120deg, #0f766e24, transparent 42%), radial-gradient(circle at 78% 18%, #c38a2e2e, transparent 28%), var(--background);place-items:center;min-height:100vh;padding:22px;display:grid}.login-panel{border:1px solid var(--border);background:color-mix(in srgb, var(--panel) 94%, transparent);border-radius:8px;width:min(440px,100%);padding:24px;box-shadow:0 28px 90px #1e2d2729}.login-brand{align-items:center;gap:14px;margin-bottom:26px;display:flex}.login-brand img{border-radius:12px;width:48px;height:48px}.login-brand p{color:var(--accent);letter-spacing:.08em;margin:0 0 4px;font-family:Cascadia Mono,SFMono-Regular,Consolas,monospace;font-size:12px}.login-brand h1{margin:0;font-size:32px;line-height:1}.login-form{flex-direction:column;gap:14px;display:flex}.login-form label{flex-direction:column;gap:7px;display:flex}.login-form span{color:var(--muted);font-size:14px}.login-form input{border:1px solid var(--border);background:var(--panel-soft);width:100%;min-height:42px;color:var(--foreground);border-radius:8px;padding:0 12px}.password-field{position:relative}.password-field input{padding-right:46px}.password-field button{width:38px;min-height:38px;color:var(--muted);background:0 0;border:0;padding:0;position:absolute;top:2px;right:2px}.login-form button{background:var(--accent);color:#fff;margin-top:4px}.login-error{color:#b42318;margin:-2px 0 0;font-size:14px}.app-shell{grid-template-rows:auto minmax(0,1fr);grid-template-columns:minmax(220px,300px) minmax(0,1fr);gap:12px;min-height:100vh;padding:clamp(10px,1.8vw,18px);display:grid}.app-shell.is-library-collapsed{grid-template-columns:minmax(0,1fr)}.top-nav{border:1px solid var(--border);background:var(--panel);min-height:52px;box-shadow:var(--shadow);border-radius:8px;grid-column:1/-1;justify-content:space-between;align-items:center;gap:14px;padding:0 14px;display:flex}.top-nav div{align-items:center;gap:10px;min-width:0;display:flex}.top-nav img{border-radius:8px;width:30px;height:30px}.top-nav strong{font-size:20px;line-height:1}.top-nav span,.empty-tip,.book-heading span{color:var(--muted);font-size:14px}.top-nav button,.library-actions button,.reader-toolbar button,.source-dialog button{justify-content:center;align-items:center;gap:7px;padding:0 12px;display:inline-flex}.library-panel,.reader-panel{border:1px solid var(--border);min-height:calc(100vh - 86px);box-shadow:var(--shadow);border-radius:8px}.library-panel{background:var(--panel);flex-direction:column;gap:12px;min-width:0;padding:12px;display:flex}.search-box{border:1px solid var(--border);background:var(--panel-soft);border-radius:8px;align-items:center;gap:8px;min-height:42px;padding:0 11px;display:flex}.search-box svg{color:var(--muted)}.search-box input{width:100%;min-width:0;color:var(--foreground);background:0 0;border:0;outline:0}.search-box input::placeholder{color:var(--muted)}.library-actions{color:var(--muted);justify-content:space-between;align-items:center;font-size:14px;display:flex}.library-actions button{width:38px;padding:0}.book-list{flex-direction:column;flex:1;gap:6px;display:flex;overflow:auto}.book-card{text-align:left;background:0 0;min-height:42px;padding:0 11px;display:block;overflow:hidden}.book-card[aria-current=true]{border-color:var(--accent);background:color-mix(in srgb, var(--accent) 11%, var(--panel));color:var(--accent-strong)}.book-card strong{text-overflow:ellipsis;white-space:nowrap;font-size:15px;font-weight:600;line-height:40px;display:block;overflow:hidden}.reader-panel{background:var(--reader);min-width:0}.empty-state,.reader-view{padding:clamp(18px,3vw,34px)}.empty-state{text-align:center;align-content:center;justify-items:center;gap:14px;height:100%;display:grid}.empty-state svg{width:46px;height:46px;color:var(--accent)}.empty-state h1{margin:0;font-size:clamp(30px,4vw,52px);line-height:1.08}.reader-view{flex-direction:column;align-items:center;gap:10px;height:calc(100vh - 86px);padding-right:8px;display:flex}.reader-toolbar{z-index:10;grid-template-columns:auto minmax(260px,1fr) auto auto;align-items:center;gap:8px;width:min(960px,100%);display:grid;position:relative}.reader-toolbar button{white-space:nowrap;min-width:82px;padding:0 10px}.chapter-select{z-index:20;min-width:0;position:relative}.chapter-select-trigger{width:100%;min-width:0}.chapter-select-trigger span{text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.chapter-menu{z-index:50;border:1px solid var(--border);background:var(--panel);box-shadow:var(--shadow);border-radius:8px;flex-direction:column;gap:8px;max-height:min(420px,100vh - 150px);padding:8px;display:flex;position:absolute;top:calc(100% + 6px);left:0;right:0;overflow:hidden}.chapter-menu input{border:1px solid var(--border);background:var(--panel-soft);min-height:36px;color:var(--foreground);border-radius:8px;padding:0 10px}.chapter-options{overscroll-behavior:contain;flex-direction:column;gap:4px;min-height:0;display:flex;overflow-y:auto}.chapter-options button{text-align:left;text-overflow:ellipsis;white-space:nowrap;justify-content:flex-start;min-width:0;min-height:34px;overflow:hidden}.chapter-options button[aria-current=true]{border-color:var(--accent);color:var(--accent-strong)}.chapter-options p{color:var(--muted);margin:0;font-size:14px;line-height:1.8}.reader-content{z-index:1;width:100%;min-height:320px;color:var(--foreground);flex:1;font-size:16px;line-height:1.8;position:relative;overflow:auto}.paragraph-row{text-indent:2em;margin:0;padding-left:clamp(10px,4vw,52px);padding-right:clamp(18px,9vw,140px)}.dialog-backdrop{z-index:9999;background:#0c12108a;place-items:center;padding:18px;display:grid;position:fixed;inset:0}.source-dialog{z-index:10000;border:1px solid var(--border);background:var(--panel);border-radius:8px;flex-direction:column;gap:14px;width:min(860px,100%);max-height:min(720px,88vh);padding:16px;display:flex;position:relative;box-shadow:0 28px 90px #00000057}.source-dialog header,.source-dialog footer{justify-content:space-between;align-items:center;gap:12px;display:flex}.source-dialog header p{color:var(--accent);letter-spacing:.08em;margin:0 0 3px;font-family:Cascadia Mono,SFMono-Regular,Consolas,monospace;font-size:12px}.source-dialog h2{margin:0;font-size:22px}.source-dialog header button{width:38px;padding:0}.source-link-box{border:1px solid var(--border);background:var(--panel-soft);border-radius:8px;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:10px;padding:10px;display:grid}.source-link-box span{color:var(--muted);font-size:14px}.source-link-box code{color:var(--foreground);text-overflow:ellipsis;white-space:nowrap;font-family:Cascadia Mono,SFMono-Regular,Consolas,monospace;font-size:13px;overflow:hidden}.source-dialog pre{border:1px solid var(--border);background:var(--panel-soft);min-height:260px;color:var(--foreground);white-space:pre-wrap;border-radius:8px;flex:1;margin:0;padding:14px;font-family:Cascadia Mono,SFMono-Regular,Consolas,monospace;font-size:13px;line-height:1.55;overflow:auto}.source-dialog footer span{color:var(--muted);font-size:14px}@media (width<=860px){.app-shell,.app-shell.is-library-collapsed{grid-template-columns:1fr}.library-panel,.reader-panel{min-height:auto}.reader-view{height:calc(100dvh - 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