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.toast--error{color:#2a0d12}.toast__msg{flex:1}.toast__action,.toast__close{border:0;background:none;color:inherit;min-height:36px;padding:0 8px;border-radius:var(--radius-sm)}.toast__action{font-weight:600;text-decoration:underline}.auth{min-height:100dvh;display:grid;align-items:center;justify-items:center;padding:24px 16px;background:var(--bg)}.auth__art{display:none}.auth__card{width:min(400px,100%);display:grid;gap:var(--space-5);padding:var(--space-6) var(--space-5);border:1px solid var(--line);border-radius:var(--radius-lg);background:var(--surface);box-shadow:var(--shadow)}.auth__card--wide{width:min(480px,100%)}.auth__brand{display:flex;align-items:center;gap:14px}.auth__title{font-family:var(--font-serif);font-size:var(--step-3);letter-spacing:.12em}@media (min-width: 900px){.auth{grid-template-columns:1fr minmax(380px,460px);padding:0}.auth__art{display:grid;align-items:end;justify-items:center;align-self:stretch;width:100%;background:linear-gradient(180deg,var(--rail),var(--rail-2));padding:0 8% 14vh}.auth__spines{display:flex;align-items:flex-end;gap:6px;padding-bottom:18px;border-bottom:14px solid var(--shelf-edge)}.auth__spine{--tone: var(--cover-0);display:grid;place-items:center;width:52px;height:260px;border-radius:2px;background:var(--tone);color:#ffffffeb;font-family:var(--font-kai);font-size:26px;box-shadow:inset -6px 0 #0000002e,inset 0 14px #ffffff0f}.auth__spine:nth-child(2n){height:300px}.auth__spine:nth-child(3n){height:230px;width:44px}.auth__spine[data-tone="1"]{--tone: var(--cover-1)}.auth__spine[data-tone="2"]{--tone: var(--cover-2)}.auth__spine[data-tone="3"]{--tone: var(--cover-3)}.auth__spine[data-tone="4"]{--tone: var(--cover-4)}.auth__spine[data-tone="5"]{--tone: var(--cover-5)}.auth__card{margin:0 32px}}.boot-error{padding:48px 16px;max-width:520px;margin:0 auto}.reader{--r-bg: #fbfaf6;--r-ink: #24231f;--r-muted: #5d5a52;--r-link: #2f3f8f;--r-rule: #dcd8cc;--r-soft: #f0ede4;--r-bar: rgba(251, 250, 246, .94);--r-stage: #e9e6de;position:fixed;inset:0;display:grid;grid-template-rows:auto minmax(0,1fr) auto;background:var(--r-bg);color:var(--r-ink);color-scheme:light}.reader--eye{--r-bg: #e4edda;--r-ink: #1e2a1b;--r-muted: #4a5945;--r-link: #1f5e46;--r-rule: #c5d3bb;--r-soft: #d6e3ca;--r-bar: rgba(228, 237, 218, .94);--r-stage: #d2dec6}.reader--dark{--r-bg: #15171c;--r-ink: #d3d7df;--r-muted: #9aa1ae;--r-link: #9db1ff;--r-rule: #2e333d;--r-soft: #20242c;--r-bar: rgba(21, 23, 28, .94);--r-stage: #0f1115;color-scheme:dark}.reader--bare{display:block;overflow:auto;padding:16px}.reader .muted{color:var(--r-muted)}.reader .btn--ghost{background:transparent;border-color:var(--r-rule);color:var(--r-ink)}.reader .btn--ghost:hover:not(:disabled){border-color:var(--r-link);color:var(--r-link)}.reader-missing{max-width:640px;margin:0 auto;display:grid;gap:16px;padding-top:24px}.reader-bar{position:relative;z-index:5;display:flex;align-items:center;gap:8px;padding:4px 8px;background:var(--r-bar);backdrop-filter:blur(8px);transition:transform var(--dur) var(--ease),opacity var(--dur) var(--ease)}.reader-bar--top{padding-top:calc(4px + env(safe-area-inset-top));border-bottom:1px solid var(--r-rule)}.reader-bar--bottom{justify-content:space-between;padding-bottom:calc(6px + env(safe-area-inset-bottom));border-top:1px solid var(--r-rule)}.reader-bar__title{flex:1;min-width:0;display:grid;line-height:1.3}.reader-bar__title strong{font-family:var(--font-serif);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.reader-bar__title span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.reader-bar__actions{display:flex;gap:2px}.reader-bar__progress{flex:1;display:flex;align-items:center;gap:10px;max-width:420px;font-variant-numeric:tabular-nums}.reader-bar__progress .progress{background:var(--r-rule)}.reader-bar__progress .progress__fill{background:var(--r-link)}.reader--immersive .reader-bar--top{transform:translateY(-100%);opacity:0;pointer-events:none}.reader--immersive .reader-bar--bottom{transform:translateY(100%);opacity:0;pointer-events:none}.reader--immersive{grid-template-rows:0 minmax(0,1fr) 0}@media (max-width: 559px){.reader-bar--bottom .btn{padding:0 8px}}.sync{display:inline-flex;align-items:center;gap:4px;font-size:12px;color:var(--r-muted)}.sync--offline,.sync--auth,.sync--error,.sync--conflict{color:#b45309}.reader--dark .sync--offline,.reader--dark .sync--auth,.reader--dark .sync--error,.reader--dark .sync--conflict{color:#f2c06b}.reader-stage{position:relative;min-height:0;overflow:hidden}.flow{height:100%;overflow-y:auto;overscroll-behavior:contain;-webkit-overflow-scrolling:touch;outline:none}.flow__page{max-width:var(--r-width);margin:0 auto;padding:clamp(24px,5vh,56px) clamp(18px,5vw,48px) 40px}.flow__loading{display:flex;align-items:center;gap:10px;justify-content:center;padding:80px 0;color:var(--r-muted)}.flow__chapter-nav{display:flex;justify-content:space-between;align-items:center;gap:8px;margin-top:48px;padding-top:16px;border-top:1px solid var(--r-rule)}.txt{font-family:var(--r-font);font-size:var(--r-size);line-height:var(--r-leading);color:var(--r-ink);text-align:justify;overflow-wrap:anywhere}.txt p{margin:0 0 .75em;text-indent:2em}.txt__title{font-family:var(--r-heading);font-size:1.4em;line-height:1.35;margin:.4em 0 1.2em;text-align:center;letter-spacing:.06em}.pdf{height:100%;display:grid;grid-template-rows:auto minmax(0,1fr)}.pdf__tools{display:flex;flex-wrap:wrap;justify-content:center;align-items:center;gap:8px 16px;padding:6px 8px;border-bottom:1px solid var(--r-rule)}.reader--immersive .pdf__tools{display:none}.pdf__jump{display:flex;align-items:center;gap:6px}.pdf__page{width:64px;text-align:center}.pdf .seg{background:transparent;border-color:var(--r-rule)}.pdf .seg__btn--on{background:color-mix(in srgb,var(--r-link) 18%,transparent);color:var(--r-ink)}.pdf__stage{position:relative;overflow:auto;display:grid;justify-items:center;align-items:start;padding:8px;background:var(--r-stage)}.pdf__canvas{background:#fff;box-shadow:0 1px 3px #00000040,0 12px 30px -18px #00000080}.pdf__busy{position:absolute;top:12px;right:12px;width:18px;height:18px;border:2px solid var(--r-rule);border-top-color:var(--r-link);border-radius:50%;animation:spin .8s linear infinite}.panel-sheet{position:fixed;z-index:20;inset:auto 0 0;max-height:72dvh;display:grid;grid-template-rows:auto minmax(0,1fr);background:var(--r-bg);color:var(--r-ink);border-top:1px solid var(--r-rule);border-radius:16px 16px 0 0;box-shadow:0 -12px 32px -16px #00000073;animation:sheet-up var(--dur) var(--ease);padding-bottom:env(safe-area-inset-bottom)}@media (min-width: 900px){.panel-sheet{inset:0 0 0 auto;width:360px;max-height:none;border-radius:0;border-top:0;border-left:1px solid var(--r-rule);box-shadow:-12px 0 32px -20px #00000073}}.panel-sheet__head{display:flex;align-items:center;justify-content:space-between;padding:10px 8px 10px 20px;border-bottom:1px solid var(--r-rule)}.panel-sheet__head h2{font-family:var(--font-serif);font-size:var(--step-1)}.panel-sheet__body{overflow-y:auto;padding:12px 16px 24px}.panel-sheet .input{background:var(--r-soft);border-color:var(--r-rule);color:var(--r-ink)}.toc{list-style:none;margin:0;padding:0;display:grid}.toc__item{width:100%;min-height:42px;padding:8px 10px;border:0;border-radius:var(--radius-sm);background:none;text-align:left;line-height:1.4}.toc__item:hover{background:var(--r-soft)}.toc__item--on{background:var(--r-soft);color:var(--r-link);font-weight:600;box-shadow:inset 3px 0 0 var(--r-link)}.bookmarks{display:grid;gap:12px}.bookmarks .btn--primary{background:var(--r-link);color:var(--r-bg);justify-self:start}.bookmark-list{list-style:none;margin:0;padding:0;display:grid;gap:4px}.bookmark{display:flex;align-items:flex-start;gap:4px;border-radius:var(--radius-sm)}.bookmark:hover{background:var(--r-soft)}.bookmark__go{flex:1;min-width:0;display:grid;gap:2px;padding:8px 10px;border:0;background:none;text-align:left}.bookmark__go strong,.bookmark__go span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.bookmark__actions{display:flex;padding-top:4px}.choice{border:0;margin:0;padding:0;display:grid;gap:6px}.choice legend{font-weight:600;font-size:var(--step--1);padding:0;margin-bottom:6px}.choice .seg{background:transparent;border-color:var(--r-rule);width:100%}.choice .seg__btn{flex:1;min-height:40px}.choice .seg__btn+.seg__btn{border-color:var(--r-rule)}.choice .seg__btn--on{background:color-mix(in srgb,var(--r-link) 18%,transparent);color:var(--r-ink)}.slider{display:grid;gap:6px}.slider__head{display:flex;justify-content:space-between;font-weight:600;font-size:var(--step--1)}.slider input{width:100%;accent-color:var(--r-link);min-height:32px}.type-preview{padding:14px 16px;border-radius:var(--radius-sm);background:var(--r-soft);font-family:var(--r-font);font-size:var(--r-size);line-height:var(--r-leading)}.session-gate{position:fixed;inset:0;z-index:70;display:grid;place-items:center;padding:16px;background:#080a1299}.session-gate__card{width:min(400px,100%);display:grid;gap:12px;padding:24px;border-radius:var(--radius-lg);background:var(--surface);color:var(--ink);box-shadow:var(--shadow)}.session-gate__card h2{font-family:var(--font-serif)}.session-gate__card .muted{color:var(--ink-3)}.session-gate__card .input{background:var(--surface);color:var(--ink)}