:root{--bg: #0f1727;--bg-soft: #16203a;--bg-card: #1b2740;--fg: #e8edf7;--fg-dim: #9aa7bf;--fg-faint: #6c7a94;--line: #26324f;--accent: #5b8def;--accent-strong: #4a6df5;--accent-ink: #ffffff;--danger: #e2645c;--ok: #4bbf8b;--warn: #e0b45c;--page-bg: #ffffff;--page-shadow: 0 2px 14px rgba(0, 0, 0, .45);--radius: 14px;--radius-sm: 10px;--toolbar-h: 56px;--tap: 48px;--safe-top: env(safe-area-inset-top, 0px);--safe-bottom: env(safe-area-inset-bottom, 0px);--safe-left: env(safe-area-inset-left, 0px);--safe-right: env(safe-area-inset-right, 0px)}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;background:var(--bg);color:var(--fg);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;overscroll-behavior-y:none}button,input,select{font:inherit;color:inherit}button{touch-action:manipulation;cursor:pointer}button:disabled{opacity:.45;cursor:default}:focus-visible{outline:3px solid var(--accent);outline-offset:2px;border-radius:4px}:focus:not(:focus-visible){outline:none}.optional{color:var(--fg-faint);font-style:normal;font-weight:400}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:10px 16px;border:1px solid var(--line);border-radius:var(--radius-sm);background:var(--bg-card);color:var(--fg);font-weight:600;font-size:15px;transition:background .12s ease,transform .05s ease}.btn:active{transform:scale(.97)}.btn-primary{background:var(--accent-strong);border-color:var(--accent-strong);color:var(--accent-ink)}.btn-ghost{background:transparent}.btn-danger{color:var(--danger);border-color:#e2645c66}.btn-ok{color:var(--ok);border-color:#4bbf8b66}.btn-block{width:100%}.btn-small{min-height:38px;padding:6px 12px;font-size:13.5px}.btn-nav{width:64px;height:52px}.icon-btn{display:inline-flex;align-items:center;justify-content:center;min-width:var(--tap);min-height:var(--tap);padding:0 10px;border:none;border-radius:var(--radius-sm);background:transparent;color:var(--fg)}.icon-btn:hover{background:#ffffff12}.icon-btn:active{transform:scale(.94)}.icon-btn.active{color:var(--accent);background:#5b8def2e}.app-shell{display:flex;flex-direction:column;min-height:100%}.screen-center{flex:1;display:flex;align-items:center;justify-content:center;padding:24px}.topbar{display:flex;align-items:center;gap:12px;min-height:calc(var(--toolbar-h) + var(--safe-top));padding:var(--safe-top) 20px 0;border-bottom:1px solid var(--line);background:var(--bg)}.topbar-brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:18px}.topbar-title{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.topbar-actions{margin-left:auto;display:flex;align-items:center;gap:6px}.topbar-user{color:var(--fg-dim);margin-right:4px;max-width:180px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.library-main{flex:1;padding:24px 20px calc(40px + var(--safe-bottom));max-width:1480px;width:100%;margin:0 auto}.page-title{margin:0 0 20px;font-size:24px}.book-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:18px}@media (min-width: 768px){.book-grid{grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:22px}}@media (min-width: 1180px){.book-grid{grid-template-columns:repeat(auto-fill,minmax(340px,1fr));gap:26px}}.book-card{display:flex;gap:16px;padding:16px;background:var(--bg-card);border:1px solid var(--line);border-radius:var(--radius)}.book-cover{flex:0 0 auto;width:92px;height:128px;border-radius:8px;overflow:hidden;background:linear-gradient(135deg,#2a3a63,#1b2740);position:relative}.book-cover img{width:100%;height:100%;object-fit:cover}.book-cover-fallback{width:100%;height:100%;display:flex;align-items:center;justify-content:center;color:#5b6c9e}.book-meta{display:flex;flex-direction:column;min-width:0}.book-title{margin:0 0 4px;font-size:17px;line-height:1.3}.book-author{margin:0 0 4px;color:var(--fg-dim);font-size:14px}.book-info{margin:0 0 12px;color:var(--fg-faint);font-size:13px}.book-actions{margin-top:auto;display:flex;gap:10px;flex-wrap:wrap}.empty-state{display:flex;flex-direction:column;align-items:center;gap:14px;text-align:center;padding:48px 20px;color:var(--fg-dim)}.hint-code{background:var(--bg-card);padding:12px 16px;border-radius:8px;color:var(--fg);max-width:100%;overflow-x:auto}.auth-page{min-height:100%;display:flex;align-items:center;justify-content:center;padding:24px;background:radial-gradient(1200px 600px at 20% -10%,rgba(91,141,239,.18),transparent 60%),var(--bg)}.auth-card{width:100%;max-width:420px;padding:32px 28px;background:var(--bg-card);border:1px solid var(--line);border-radius:20px;text-align:center}.auth-logo{margin:0 auto 12px;color:var(--accent)}.auth-title{margin:0 0 6px;font-size:22px}.auth-sub{margin:0 0 24px;color:var(--fg-dim)}.auth-alt{margin:20px 0 0;color:var(--fg-dim);font-size:14px}.auth-alt a{color:var(--accent);text-decoration:none}.auth-error{margin-top:16px;padding:12px 14px;border-radius:10px;background:#e2645c24;color:#ffb3ad;font-size:14px;text-align:left}.auth-info{margin-top:16px;color:var(--ok);font-size:14px;text-align:left}.field{display:flex;flex-direction:column;gap:6px;text-align:left;margin-bottom:14px}.field>span{color:var(--fg-dim);font-size:13.5px;font-weight:600}.field input,.field select,.search-input-wrap input{min-height:48px;padding:10px 14px;border-radius:var(--radius-sm);border:1.5px solid var(--line);background:var(--bg);color:var(--fg);font-size:16px}.field input:focus,.field select:focus,.search-input-wrap input:focus{border-color:var(--accent);outline:none}.field-error{color:var(--danger);font-size:13.5px;text-align:left;margin-top:4px}.spinner{width:40px;height:40px;border:4px solid var(--line);border-top-color:var(--accent);border-radius:50%;animation:spin .8s linear infinite}.spinner.small{width:18px;height:18px;border-width:3px}@keyframes spin{to{transform:rotate(360deg)}}.toast-host{position:fixed;top:calc(var(--safe-top) + 12px);left:50%;transform:translate(-50%);z-index:300;display:flex;flex-direction:column;align-items:center;gap:8px;pointer-events:none;padding:0 16px}.toast{background:var(--bg-card);border:1px solid var(--line);border-left:4px solid var(--accent);color:var(--fg);padding:12px 18px;border-radius:12px;font-size:14.5px;box-shadow:0 8px 30px #00000080;max-width:90vw;text-align:center}.toast.error{border-left-color:var(--danger)}.toast.ok{border-left-color:var(--ok)}.modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;background:#04081299;display:flex;align-items:center;justify-content:center;z-index:200;padding:calc(var(--safe-top) + 20px) 20px calc(var(--safe-bottom) + 20px);animation:fadeIn .15s ease}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.modal{width:100%;max-width:480px;max-height:90dvh;overflow:auto;background:var(--bg-card);border:1px solid var(--line);border-radius:18px;padding:18px;outline:none;animation:popIn .16s ease}@keyframes popIn{0%{transform:scale(.96);opacity:.5}to{transform:scale(1);opacity:1}}.modal-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}.modal-title{margin:0;font-size:19px}.modal-hint{color:var(--fg-dim);font-size:14.5px;margin:0 0 14px}.modal-actions{display:flex;gap:10px;justify-content:flex-end;margin-top:18px}.popover{position:absolute;z-index:150;background:var(--bg-card);border:1px solid var(--line);border-radius:14px;box-shadow:0 12px 40px #00000080;padding:8px;min-width:220px}.popover-bottom{top:calc(100% + 8px);right:0}.menu-item{display:flex;align-items:center;gap:10px;width:100%;min-height:48px;padding:8px 12px;border:none;border-radius:10px;background:transparent;color:var(--fg);font-size:15px;text-align:left}.menu-item:hover{background:#ffffff12}.menu-sep{height:1px;background:var(--line);margin:6px 8px}.picker-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:12px}.picker-btn{display:flex;flex-direction:column;align-items:center;gap:8px;min-height:96px;padding:14px;border:1.5px solid var(--line);border-radius:14px;background:var(--bg);color:var(--fg)}.picker-btn:focus-visible,.picker-btn:hover{border-color:var(--accent)}.goto-form{display:flex;flex-direction:column}.hint{color:var(--fg-faint);font-size:13px;margin:6px 0 4px}.goto-preview{margin-top:10px;font-size:14.5px;color:var(--fg-dim);display:flex;gap:8px;align-items:baseline}.goto-preview strong{color:var(--fg)}.code-box{display:flex;align-items:center;gap:12px;margin:12px 0 6px}.enroll-code{font-size:22px;font-weight:700;letter-spacing:2px;background:var(--bg);border:1px solid var(--line);border-radius:12px;padding:14px 18px;-webkit-user-select:all;user-select:all;word-break:break-all}.copy-ok{color:var(--ok);font-size:14px;margin-top:6px}.reader{display:flex;flex-direction:column;height:100dvh;background:var(--bg-soft)}.reader-topbar{display:flex;align-items:center;gap:4px;padding:calc(var(--safe-top) + 6px) calc(var(--safe-right) + 10px) 6px calc(var(--safe-left) + 10px);background:var(--bg);border-bottom:1px solid var(--line);min-height:calc(var(--toolbar-h) + var(--safe-top));overflow-x:auto;scrollbar-width:none}.reader-topbar::-webkit-scrollbar{display:none}.reader-title-btn{display:flex;flex-direction:column;align-items:flex-start;min-height:var(--tap);padding:6px 10px;margin-left:4px;background:transparent;border:none;color:var(--fg);border-radius:10px;max-width:300px;text-align:left}.reader-title{font-weight:700;font-size:15.5px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:90vw}.reader-current-label{color:var(--accent);font-size:13px;font-weight:600}.reader-spacer{flex:1;min-width:8px}.seg{display:inline-flex;background:var(--bg-card);border:1px solid var(--line);border-radius:12px;padding:3px;gap:2px}.seg-btn{border:none;background:transparent;color:var(--fg-dim);min-height:38px;min-width:42px;display:inline-flex;align-items:center;justify-content:center;border-radius:9px}.seg-btn.active{background:var(--accent-strong);color:#fff}.seg-btn:disabled{opacity:.4}.zoom-ctl{display:inline-flex;align-items:center;background:var(--bg-card);border:1px solid var(--line);border-radius:12px;padding:2px}.zoom-value{min-width:56px;min-height:38px;border:none;background:transparent;color:var(--fg);font-size:13px;font-weight:600}.fit-ctl{display:inline-flex;background:var(--bg-card);border:1px solid var(--line);border-radius:12px;padding:2px}.reader-viewport{flex:1;overflow-y:auto;overflow-x:auto;scroll-behavior:smooth;height:0;position:relative;-webkit-overflow-scrolling:touch;touch-action:pan-x pan-y}.reader-stage{display:flex;flex-direction:column;align-items:center;padding:calc(var(--safe-top) + 14px) calc(var(--safe-right) + 24px) calc(var(--safe-bottom) + 60px) calc(var(--safe-left) + 24px);min-height:100%;gap:22px}.reader-stage.spread{flex-direction:row;align-items:flex-start;justify-content:center;gap:16px}.reader-page{margin:0;position:relative;background:#fff;box-shadow:var(--page-shadow);line-height:0;border-radius:2px}.reader-page canvas{display:block}.reader-page .page-label{position:absolute;top:-26px;left:0;line-height:1;color:var(--fg-dim);font-size:13px;font-weight:600}.reader-bottombar{display:flex;align-items:center;justify-content:center;gap:14px;padding:6px calc(var(--safe-right) + 14px) calc(var(--safe-bottom) + 6px) calc(var(--safe-left) + 14px);background:var(--bg);border-top:1px solid var(--line)}.goto-btn{min-width:180px;min-height:48px;border:1px solid var(--line);background:var(--bg-card);border-radius:12px;color:var(--fg);font-weight:600;font-size:16px}.goto-total{color:var(--fg-faint);font-weight:400;margin-left:4px}.reader-note{position:fixed;bottom:calc(var(--safe-bottom) + 74px);left:50%;transform:translate(-50%);background:#101628f2;border:1px solid var(--line);color:var(--fg-dim);font-size:13px;padding:8px 16px;border-radius:999px;z-index:120;pointer-events:none;white-space:nowrap}.search-panel{position:fixed;top:0;bottom:0;right:0;width:min(460px,92vw);transform:translate(105%);transition:transform .22s ease;background:var(--bg-card);border-left:1px solid var(--line);z-index:180;display:flex;flex-direction:column;padding-top:var(--safe-top);padding-bottom:var(--safe-bottom);box-shadow:-18px 0 40px #00000059}.search-panel.open{transform:translate(0)}.search-panel-head{display:flex;align-items:center;justify-content:space-between;padding:10px 16px}.search-panel-title{font-weight:700;font-size:17px}.search-input-wrap{display:flex;align-items:center;gap:8px;margin:0 16px 12px;background:var(--bg);border:1.5px solid var(--line);border-radius:12px;padding:0 10px;color:var(--fg-dim)}.search-input-wrap input{flex:1;border:none;background:transparent;font-size:16px}.search-input-wrap:focus-within{border-color:var(--accent)}.search-clear{min-width:40px;min-height:40px;padding:0}.search-results{flex:1;overflow-y:auto;padding:0 12px 12px}.search-msg{color:var(--fg-dim);padding:18px;display:flex;gap:10px;align-items:center;justify-content:center;font-size:14.5px}.search-msg.error{color:var(--danger)}.search-result{display:flex;flex-direction:column;gap:4px;width:100%;text-align:left;padding:12px 14px;margin-bottom:8px;border:1px solid var(--line);border-radius:12px;background:var(--bg);color:var(--fg);min-height:60px}.search-result:focus-visible,.search-result:hover{border-color:var(--accent)}.search-result-label{color:var(--accent);font-weight:700;font-size:13px}.search-result-preview{color:var(--fg-dim);font-size:14px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.search-panel-foot{padding:10px 16px;border-top:1px solid var(--line);color:var(--fg-faint);font-size:12.5px;display:flex;gap:8px;align-items:center}.admin-main{padding-top:16px}.admin-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:16px;flex-wrap:wrap}.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:14px;background:var(--bg-card)}.user-table{width:100%;border-collapse:collapse;min-width:860px}.user-table th,.user-table td{padding:12px 14px;text-align:left;border-bottom:1px solid var(--line);vertical-align:middle}.user-table th{color:var(--fg-faint);font-size:12.5px;text-transform:uppercase;letter-spacing:.05em}.user-table tr:last-child td{border-bottom:none}.th-actions{text-align:right}.user-display{font-weight:600}.badge{display:inline-block;padding:3px 9px;border-radius:999px;font-size:12px;font-weight:700;background:var(--bg);border:1px solid var(--line);color:var(--fg-dim);margin-left:6px}.badge.ok{color:var(--ok);border-color:#4bbf8b66}.badge.warn{color:var(--warn);border-color:#e0b45c66}.badge-admin{color:var(--accent);border-color:#5b8def66}.row-actions{display:flex;align-items:center;gap:6px;flex-wrap:wrap;justify-content:flex-end}.del-confirm{display:inline-flex;align-items:center;gap:6px;color:var(--danger);font-size:13px}.admin-form{display:flex;flex-direction:column;gap:4px}@media (max-width: 767px){.reader-title{max-width:42vw}.reader-bottombar{gap:8px}.goto-btn{min-width:148px}.book-grid{grid-template-columns:1fr 1fr;gap:12px}.book-card{flex-direction:column}.book-cover{width:100%;height:150px}.topbar-user,.fit-ctl,.zoom-value{display:none}}@media (max-width: 440px){.book-grid{grid-template-columns:1fr}}@media (min-width: 1024px) and (orientation: landscape){.library-main{padding:28px 28px calc(48px + var(--safe-bottom))}}.pad-left{padding-left:var(--safe-left)}.pad-right{padding-right:var(--safe-right)}@media (display-mode: standalone){.reader-topbar{padding-top:calc(var(--safe-top) + 8px)}}@media (prefers-reduced-motion: reduce){*{animation-duration:.001ms!important;transition-duration:.001ms!important;scroll-behavior:auto!important}}