.nv-reader{--nv-void:#07090c;--nv-void-2:#0b1018;--nv-paper:#e9e7e2;--nv-ash:#868b95;--nv-line:#1b2027;--nv-signal:#9e2b25;--nv-cool:#5b7fa6;--nv-h:clamp(420px,72vh,760px);--nv-fs:clamp(1rem,0.95rem + 0.45vw,1.14rem);--nv-fs-scale:1;--nv-lh:1.95;--nv-pad-y:clamp(0.5rem,2.2vh,1.25rem);position:relative;isolation:isolate;background:radial-gradient(130% 90% at 50% -15%,var(--nv-void-2),var(--nv-void) 62%),var(--nv-void);color:var(--nv-paper);font-family:var(--font-shippori),serif;font-weight:400;overflow:hidden;padding:clamp(1.75rem,5vw,3.25rem) 1rem clamp(2.25rem,6vw,3.75rem)}.nv-reader:before{content:"";position:absolute;inset:auto 0 -30% 0;height:60%;background:radial-gradient(50% 80% at 50% 100%,color-mix(in srgb,var(--nv-cool) 14%,transparent),transparent 70%);pointer-events:none;z-index:0}.nv-reader>*{position:relative;z-index:1}.nv-cover{display:flex;flex-direction:column;align-items:center;gap:1.75rem;animation:nv-fade .7s ease both}.nv-cover-btn{position:relative;display:block;padding:0;border:0;background:transparent;cursor:pointer;border-radius:5px;box-shadow:0 32px 64px -24px rgba(0,0,0,.85);transition:transform .5s cubic-bezier(.22,.61,.36,1),box-shadow .5s ease}.nv-cover-btn:focus-visible,.nv-cover-btn:hover{transform:translateY(-5px) scale(1.012);box-shadow:0 40px 80px -22px rgba(0,0,0,.9)}.nv-cover-img{display:block;width:min(80vw,312px);height:auto;border-radius:5px}.nv-cover-hint{position:absolute;left:50%;bottom:1.35rem;transform:translateX(-50%);display:inline-flex;align-items:center;gap:.55rem;padding:.5rem 1.15rem;font-family:var(--font-space-mono),monospace;font-size:.72rem;letter-spacing:.32em;text-indent:.32em;color:var(--nv-paper);border:1px solid color-mix(in srgb,var(--nv-paper) 45%,transparent);border-radius:999px;background:color-mix(in srgb,var(--nv-void) 45%,transparent);backdrop-filter:blur(5px);transition:background .4s ease,border-color .4s ease}.nv-cover-btn:focus-visible .nv-cover-hint,.nv-cover-btn:hover .nv-cover-hint{background:color-mix(in srgb,var(--nv-signal) 30%,transparent);border-color:var(--nv-signal)}.nv-cover-dot{width:.4rem;height:.4rem;border-radius:999px;background:var(--nv-signal);box-shadow:0 0 .6rem .05rem color-mix(in srgb,var(--nv-signal) 70%,transparent);animation:nv-breathe 4s ease-in-out infinite}.nv-cover-sum{max-width:30rem;text-align:center;color:var(--nv-ash);line-height:1.95;font-size:.96rem;letter-spacing:.02em}.nv-head{display:flex;align-items:baseline;justify-content:space-between;max-width:52rem;margin:0 auto 1.1rem;font-family:var(--font-space-mono),monospace;font-size:.7rem;letter-spacing:.18em;color:var(--nv-ash);text-transform:lowercase}.nv-head b{font-weight:400;color:var(--nv-paper);letter-spacing:.04em}.nv-stage{height:var(--nv-h);max-width:52rem;outline:none;animation:nv-fade .7s ease both}.nv-stage,.nv-viewport{position:relative;margin:0 auto}.nv-viewport{height:100%;overflow:hidden}.nv-viewport:after,.nv-viewport:before{content:"";position:absolute;top:0;bottom:0;width:2.75rem;pointer-events:none;z-index:2}.nv-viewport:after{left:0;background:linear-gradient(90deg,rgba(0,0,0,.5),transparent)}.nv-viewport:before{right:0;background:linear-gradient(270deg,rgba(0,0,0,.35),transparent)}.nv-flow{position:absolute;top:0;right:0;height:100%;padding-inline:var(--nv-pad-y);box-sizing:border-box;writing-mode:vertical-rl;text-orientation:mixed;font-size:calc(var(--nv-fs) * var(--nv-fs-scale));line-height:var(--nv-lh);letter-spacing:.06em;transform:translateX(0);transition:transform .55s cubic-bezier(.22,.61,.36,1);will-change:transform}.nv-flow .nv-p{margin:0;text-align:justify;text-justify:inter-character}.nv-flow .nv-chapter+.nv-chapter{margin-block-start:calc(var(--nv-lh) * 4em)}.nv-flow .nv-chap{margin:0;margin-block-end:calc(var(--nv-lh) * 1em);font-family:var(--font-zen-old-mincho),serif;font-size:calc(var(--nv-fs) * var(--nv-fs-scale));font-weight:700;letter-spacing:.22em;color:var(--nv-paper)}.nv-flow .nv-dot{display:inline-block;width:.42em;height:.42em;margin-bottom:.7em;border-radius:999px;background:var(--nv-signal);box-shadow:0 0 .5rem .03rem color-mix(in srgb,var(--nv-signal) 65%,transparent)}.nv-flow .nv-brk{margin:0;border:0;inline-size:100%;block-size:2.5em;position:relative}.nv-flow .nv-brk:after{content:"＊";position:absolute;inset:0;display:flex;align-items:center;justify-content:center;color:var(--nv-ash);font-size:.9em}.nv-flow .nv-probe{position:absolute;top:0;right:0;visibility:hidden;writing-mode:vertical-rl;font:inherit;line-height:inherit;letter-spacing:inherit;white-space:nowrap;pointer-events:none}.nv-nav{position:absolute;top:0;bottom:0;width:16%;max-width:7rem;z-index:3;display:flex;align-items:center;justify-content:center;border:0;background:transparent;color:color-mix(in srgb,var(--nv-ash) 70%,transparent);cursor:pointer;transition:color .3s ease,background .3s ease}.nv-next{left:0}.nv-prev{right:0}.nv-next:hover:not(:disabled){color:var(--nv-paper);background:linear-gradient(90deg,color-mix(in srgb,var(--nv-signal) 14%,transparent),transparent)}.nv-prev:hover:not(:disabled){color:var(--nv-paper);background:linear-gradient(270deg,color-mix(in srgb,var(--nv-signal) 14%,transparent),transparent)}.nv-nav:disabled{opacity:.22;cursor:default}.nv-chev{font-size:1.6rem;line-height:1}.nv-bar,.nv-chev{font-family:var(--font-space-mono),monospace}.nv-bar{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:.9rem 1.4rem;max-width:52rem;margin:1.4rem auto 0;font-size:.74rem;letter-spacing:.1em;color:var(--nv-ash)}.nv-count{font-variant-numeric:tabular-nums;min-width:4.5em;text-align:center}.nv-progress{position:relative;width:min(42vw,16rem);height:1px;background:var(--nv-line)}.nv-progress>i{position:absolute;top:0;right:0;height:100%;background:var(--nv-signal);transition:width .55s cubic-bezier(.22,.61,.36,1)}.nv-close{border:0;background:transparent;color:var(--nv-ash);cursor:pointer;font:inherit;letter-spacing:.1em;transition:color .3s ease}.nv-close:hover{color:var(--nv-paper)}.nv-set-btn{display:inline-flex;align-items:center;gap:.42rem;padding:.34rem .85rem;border:1px solid color-mix(in srgb,var(--nv-paper) 28%,transparent);border-radius:999px;background:color-mix(in srgb,var(--nv-void) 35%,transparent);color:color-mix(in srgb,var(--nv-paper) 82%,transparent);cursor:pointer;font:inherit;letter-spacing:.1em;transition:color .3s ease,border-color .3s ease,background .3s ease}.nv-set-gear{width:.95rem;height:.95rem;transition:transform .45s cubic-bezier(.22,.61,.36,1)}.nv-set-btn:focus-visible,.nv-set-btn:hover,.nv-set-btn[aria-expanded=true]{color:var(--nv-paper);border-color:var(--nv-signal);background:color-mix(in srgb,var(--nv-signal) 20%,transparent)}.nv-set-btn[aria-expanded=true] .nv-set-gear{transform:rotate(60deg)}.nv-settings{flex-wrap:wrap;gap:.85rem 2rem;justify-content:center;max-width:52rem;margin:1.1rem auto 0;padding:.95rem 1.25rem;border:1px solid var(--nv-line);border-radius:.7rem;background:color-mix(in srgb,var(--nv-void-2) 82%,transparent);backdrop-filter:blur(6px);animation:nv-fade .35s ease both}.nv-set-row,.nv-settings{display:flex;align-items:center}.nv-set-row{gap:.85rem}.nv-set-label{font-family:var(--font-space-mono),monospace;font-size:.68rem;letter-spacing:.14em;color:var(--nv-ash)}.nv-set-opts{display:inline-flex;border:1px solid var(--nv-line);border-radius:999px;overflow:hidden}.nv-set-opt{border:0;background:transparent;color:var(--nv-ash);cursor:pointer;font:inherit;font-size:.82rem;padding:.32rem .95rem;transition:color .25s ease,background .25s ease}.nv-set-opt+.nv-set-opt{border-left:1px solid var(--nv-line)}.nv-set-opt:hover{color:var(--nv-paper)}.nv-set-opt[data-active=true]{color:var(--nv-paper);background:color-mix(in srgb,var(--nv-signal) 26%,transparent)}@keyframes nv-fade{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}@keyframes nv-breathe{0%,to{opacity:.5}50%{opacity:1}}@media (prefers-reduced-motion:reduce){.nv-flow{transition:none}.nv-cover,.nv-settings,.nv-stage{animation:none}.nv-progress>i{transition:none}}