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var(--rb-line);border-radius:999px;font-size:12.5px;font-weight:600;color:var(--rb-muted);white-space:nowrap}.rb-chip.strong{border-color:transparent;background:var(--rb-accent-soft);color:var(--rb-accent)}.rb-timer{display:inline-flex;align-items:center;gap:6px;font-size:13.5px;font-weight:600;color:var(--rb-ink-2);font-variant-numeric:tabular-nums}.rb-timer svg{color:var(--rb-muted)}.rb-aa,.rb-icon{width:38px;height:38px;display:inline-grid;place-items:center;border-radius:999px;border:1px solid var(--rb-line);background:var(--rb-page);cursor:pointer;transition:border-color .15s,background .15s}.rb-aa{display:inline-flex;align-items:baseline;justify-content:center;gap:1px;font-family:var(--rb-serif);line-height:1;padding-top:2px}.rb-aa span:first-child{font-size:18px;font-weight:600}.rb-aa span:last-child{font-size:13px}.rb-aa:hover,.rb-icon:hover{border-color:var(--rb-accent)}.rb-progress{position:absolute;left:0;right:0;bottom:-1px;height:3px;background:transparent}.rb-progress span{display:block;height:100%;background:var(--rb-accent);border-radius:0 3px 3px 0;transition:width .45s cubic-bezier(.2,.7,.2,1)}.rb-stage{position:relative;flex:1;min-height:0;padding:26px 32px 30px;display:flex;justify-content:center}.rb-book{position:relative;width:100%;max-width:1340px;height:100%;display:grid;grid-template-columns:minmax(0,1.08fr) minmax(0,1fr);filter:drop-shadow(0 26px 34px rgba(70,52,24,.14))}.theme-dark .rb-book{filter:drop-shadow(0 26px 34px rgba(0,0,0,.45))}.rb-page{position:relative;min-height:0;overflow-y:auto;overscroll-behavior:contain;scrollbar-width:thin;scrollbar-color:var(--rb-edge) transparent;background:var(--rb-page)}.rb-left{border-radius:16px 4px 4px 16px;background:linear-gradient(to left,#3c2c1416,#3c2c1400 46px),var(--rb-page);box-shadow:-1px 1px 0 var(--rb-edge),-3px 3px 0 -1px var(--rb-page-2),-4px 4px 0 -1px var(--rb-edge),-6px 6px 0 -2px var(--rb-page-2),-7px 7px 0 -2px var(--rb-edge)}.rb-right{display:flex;flex-direction:column;border-radius:4px 16px 16px 4px;background:linear-gradient(to right,#3c2c141a,#3c2c1400 40px),var(--rb-page);box-shadow:1px 1px 0 var(--rb-edge),3px 3px 0 -1px var(--rb-page-2),4px 4px 0 -1px var(--rb-edge),6px 6px 0 -2px var(--rb-page-2),7px 7px 0 -2px var(--rb-edge)}.theme-dark .rb-left{background:linear-gradient(to left,#00000047,#0000 46px),var(--rb-page)}.theme-dark .rb-right{background:linear-gradient(to right,#0000004d,#0000 40px),var(--rb-page)}.rb.is-focus .rb-book{grid-template-columns:minmax(0,1fr);max-width:calc(var(--rb-measure) * 1 + 170px);font-size:var(--rb-font)}.rb.is-focus .rb-left{border-radius:16px}.rb-text{position:relative;max-width:calc(var(--rb-measure) + 0px);margin:0 auto;padding:30px 56px 40px 76px;font-size:var(--rb-font);box-sizing:content-box}.rb-runhead{display:flex;justify-content:space-between;gap:16px;margin-bottom:34px;font-family:var(--rb-sans);font-size:11px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--rb-muted)}.rb-runhead span:first-child{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.rb-kicker{display:inline-block;font-family:var(--rb-sans);font-size:11.5px;font-weight:700;letter-spacing:.18em;text-transform:uppercase;color:var(--rb-accent)}.rb-title{margin:10px 0 8px;font-family:var(--rb-serif);font-weight:600;font-size:clamp(27px,1.55em,38px);line-height:1.18;letter-spacing:-.01em;color:var(--rb-ink);text-wrap:balance}.rb-sub{margin:0;font-family:var(--rb-serif);font-style:italic;font-size:.92em;line-height:1.5;color:var(--rb-muted);text-wrap:pretty}.rb-orn{display:flex;align-items:center;gap:14px;margin:24px 0 26px;color:var(--rb-accent);opacity:.8}.rb-orn span{flex:1;height:1px;background:linear-gradient(to right,transparent,var(--rb-edge) 30%,var(--rb-edge) 70%,transparent)}.rb-orn i{font-style:normal;font-size:17px;line-height:1}.rb-body{font-family:var(--rb-serif);line-height:var(--rb-leading);color:var(--rb-ink-2);hyphens:auto;-webkit-hyphens:auto}.rb-para{position:relative}.rb-para+.rb-para{margin-top:.85em}.rb-para p{margin:0;text-wrap:pretty}.rb-pnum{position:absolute;left:-2.9em;top:.5em;width:1.9em;text-align:right;font-family:var(--rb-sans);font-size:.56em;font-weight:600;letter-spacing:.04em;color:var(--rb-muted);opacity:.75;font-variant-numeric:tabular-nums;transition:color .2s,opacity .2s}.rb-para.has-mark .rb-pnum{color:var(--rb-accent);opacity:1}.rb-para.is-first p:first-letter{float:left;margin:.06em .1em 0 0;font-size:3.35em;line-height:.86;font-weight:600;color:var(--rb-accent)}.rb-mark{color:var(--rb-ink);background:linear-gradient(transparent 8%,var(--rb-mark) 8%,var(--rb-mark) 92%,transparent 92%);border-radius:3px;padding:0 .08em;-webkit-box-decoration-break:clone;box-decoration-break:clone;animation:rb-mark-in .6s ease both}@keyframes rb-mark-in{0%{background-size:0 100%}to{background-size:100% 100%}}.rb-mark{background-repeat:no-repeat}.rb-end{margin:30px 0 10px;text-align:center;color:var(--rb-muted);letter-spacing:.4em;opacity:.7}.rb-folio{text-align:center;font-family:var(--rb-serif);font-size:13px;color:var(--rb-muted)}.rb-ribbon{position:absolute;top:0;right:44px;width:38px;height:66px;display:flex;justify-content:center;padding-top:18px;background:linear-gradient(180deg,var(--rb-accent-2),var(--rb-accent));clip-path:polygon(0 0,100% 0,100% 100%,50% 80%,0 100%);color:var(--rb-page);font-weight:700;font-size:14px;z-index:2;box-shadow:0 6px 14px #00000026}.theme-dark .rb-ribbon{color:#16171b}.rb-q{flex:1;padding:30px 56px 12px 58px}.rb-q .rb-runhead{padding-right:60px}.rb-dots{display:flex;flex-wrap:wrap;gap:6px;margin:12px 0 20px}.rb-dot{width:30px;height:30px;border-radius:999px;border:1px solid var(--rb-line);background:transparent;font-size:12px!important;font-weight:600;color:var(--rb-muted)!important;cursor:pointer;transition:all .15s}.rb-dot:hover{border-color:var(--rb-accent)}.rb-dot.ok{background:var(--rb-ok-soft);border-color:transparent;color:var(--rb-ok)!important}.rb-dot.bad{background:var(--rb-bad-soft);border-color:transparent;color:var(--rb-bad)!important}.rb-dot.on{border-color:var(--rb-accent);box-shadow:0 0 0 3px var(--rb-accent-soft);color:var(--rb-accent)!important}.rb-qtext{margin:0 0 22px;font-family:var(--rb-serif);font-weight:600;font-size:clamp(19px,1.45vw,23px);line-height:1.45;color:var(--rb-ink);text-wrap:pretty}.rb-qimg{display:block;max-width:100%;max-height:260px;margin:-6px 0 20px;border-radius:12px}.rb-opts{display:grid;gap:10px}.rb-opt{display:grid;grid-template-columns:22px 18px minmax(0,1fr);align-items:start;gap:12px;width:100%;padding:14px 18px;text-align:left;border:1px solid var(--rb-line);border-radius:14px;background:transparent;cursor:pointer;transition:border-color .15s,background .15s,opacity .2s,transform .1s}.rb-opt:hover:not(:disabled){border-color:color-mix(in srgb,var(--rb-accent) 45%,var(--rb-line));background:color-mix(in srgb,var(--rb-accent-soft) 45%,transparent)}.rb-opt:active:not(:disabled){transform:scale(.995)}.rb-opt:disabled{cursor:default}.rb-radio{width:22px;height:22px;margin-top:1px;display:grid;place-items:center;border-radius:999px;border:1.5px solid color-mix(in srgb,var(--rb-muted) 70%,transparent);background:var(--rb-page);color:#fff;transition:all .15s}.rb-letter{padding-top:2px;font-family:var(--rb-sans);font-size:12.5px;font-weight:700;color:var(--rb-muted)}.rb-opt-text{font-family:var(--rb-serif);font-size:17px;line-height:1.5;color:var(--rb-ink-2)}.rb-opt-text img{display:block;max-width:100%;max-height:160px;margin-top:8px;border-radius:10px}.rb-opt.is-chosen{border-color:var(--rb-accent);background:var(--rb-accent-soft)}.rb-opt.is-chosen .rb-radio{border-color:var(--rb-accent);background:var(--rb-accent);box-shadow:inset 0 0 0 4px var(--rb-page)}.rb-opt.is-chosen .rb-letter{color:var(--rb-accent)}.rb-opt.is-right{border-color:color-mix(in srgb,var(--rb-ok) 55%,transparent);background:var(--rb-ok-soft)}.rb-opt.is-right .rb-radio{border-color:var(--rb-ok);background:var(--rb-ok);box-shadow:none}.rb-opt.is-right .rb-letter{color:var(--rb-ok)}.rb-opt.is-wrong{border-color:color-mix(in srgb,var(--rb-bad) 55%,transparent);background:var(--rb-bad-soft)}.rb-opt.is-wrong .rb-radio{border-color:var(--rb-bad);background:var(--rb-bad);box-shadow:none}.rb-opt.is-wrong .rb-letter{color:var(--rb-bad)}.rb-opt.is-dim{opacity:.55}.theme-dark .rb-opt.is-right .rb-radio,.theme-dark .rb-opt.is-wrong .rb-radio{color:#16171b}.rb-feedback{margin-top:22px;display:grid;gap:14px;animation:rb-rise .32s cubic-bezier(.2,.7,.2,1) both}.rb-verdict{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin:0;font-size:14px}.rb-verdict b{font-weight:700}.rb-verdict span{color:var(--rb-muted);font-weight:500}.rb-verdict.ok{color:var(--rb-ok)}.rb-verdict.bad{color:var(--rb-bad)}.rb-why,.rb-proof{padding:16px 18px;border-radius:14px;background:var(--rb-page-2);border:1px solid var(--rb-line)}.rb-why{border-left:3px solid var(--rb-accent)}.rb-why h3,.rb-proof h3{display:flex;align-items:center;gap:7px;margin:0 0 8px;font-size:12px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--rb-accent)}.rb-why p{margin:0;font-family:var(--rb-serif);font-size:16px;line-height:1.6;color:var(--rb-ink-2);white-space:pre-line}.rb-why img{display:block;max-width:100%;margin-top:10px;border-radius:10px}.rb-proof blockquote{margin:0 0 12px;font-family:var(--rb-serif);font-style:italic;font-size:16px;line-height:1.6;color:var(--rb-ink-2)}.rb-actions{position:sticky;bottom:0;display:flex;justify-content:space-between;align-items:center;gap:12px;padding:16px 56px 22px 58px;background:linear-gradient(to bottom,transparent,var(--rb-page) 30%);z-index:3}.rb-actions-row{display:flex;justify-content:center;flex-wrap:wrap;gap:12px;margin-top:28px}.rb-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 22px;border-radius:999px;border:1px solid transparent;font-family:var(--rb-sans)!important;font-size:14px!important;font-weight:700;cursor:pointer;white-space:nowrap;transition:background .15s,border-color .15s,opacity .15s,transform .1s}.rb-btn:active:not(:disabled){transform:translateY(1px)}.rb-btn:disabled{opacity:.4;cursor:not-allowed}.rb-btn.primary{background:var(--rb-accent);color:var(--rb-page)!important;box-shadow:0 8px 20px -10px color-mix(in srgb,var(--rb-accent) 80%,transparent)}.rb-btn.primary:hover:not(:disabled){background:var(--rb-accent-2)}.rb-btn.ghost{background:transparent;border-color:var(--rb-line);color:var(--rb-ink-2)!important}.rb-btn.ghost:hover:not(:disabled){border-color:var(--rb-muted)}.rb-btn.soft{height:38px;padding:0 16px;font-size:13px!important;background:var(--rb-accent-soft);color:var(--rb-accent)!important}.rb-btn.soft.on{background:var(--rb-accent);color:var(--rb-page)!important}.rb-focus-exit{position:absolute;right:30px;bottom:30px;display:inline-flex;align-items:center;gap:8px;height:46px;padding:0 8px 0 18px;border:1px solid var(--rb-line);border-radius:999px;background:var(--rb-page);box-shadow:var(--rb-shadow);font-size:13.5px;font-weight:700;color:var(--rb-accent);cursor:pointer;z-index:5}.rb-focus-exit span{display:inline-flex;align-items:center;height:32px;padding:0 12px;border-radius:999px;background:var(--rb-accent-soft);font-size:12px}.rb-scrim{position:fixed;top:0;right:0;bottom:0;left:0;z-index:40;border:0;background:#1e180e1f;cursor:default}.rb-settings{position:fixed;top:70px;right:20px;z-index:41;width:340px;max-width:calc(100vw - 24px);padding:18px 20px 20px;border-radius:20px;border:1px solid var(--rb-line);background:var(--rb-page);box-shadow:0 30px 60px -20px #281e0a59;animation:rb-pop .18s ease both}.rb-settings-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px;font-size:15px}.rb-settings-head .rb-icon{width:34px;height:34px}.rb-set{margin-bottom:16px}.rb-set>span{display:block;margin-bottom:8px;font-size:11.5px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--rb-muted)}.rb-stepper{display:grid;grid-template-columns:40px 1fr 40px;align-items:center;gap:10px}.rb-stepper button{height:36px;border-radius:10px;border:1px solid var(--rb-line);background:transparent;font-family:var(--rb-serif)!important;font-weight:600;cursor:pointer}.rb-stepper button:last-child{font-size:18px!important}.rb-stepper input{width:100%;accent-color:var(--rb-accent)}.rb-seg{display:grid;grid-auto-flow:column;grid-auto-columns:1fr;gap:6px;padding:4px;border-radius:13px;background:var(--rb-page-2);border:1px solid var(--rb-line)}.rb-seg button{display:inline-flex;align-items:center;justify-content:center;gap:7px;height:34px;border:0;border-radius:9px;background:transparent;font-size:12.5px!important;font-weight:600;color:var(--rb-muted)!important;cursor:pointer}.rb-seg button.on{background:var(--rb-page);color:var(--rb-accent)!important;box-shadow:0 1px 3px #281e0a1f}.rb-lines{display:grid;width:18px}.rb-lines b{display:block;height:2px;border-radius:2px;background:currentColor}.rb-lines.l0{gap:2px}.rb-lines.l1{gap:3.5px}.rb-lines.l2{gap:5px}.rb-swatch{width:14px;height:14px;border-radius:999px;border:1px solid var(--rb-line)}.rb-swatch.light{background:#fbf8f1}.rb-swatch.dark{background:#212228}.rb-switch{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-top:14px;border-top:1px solid var(--rb-line);cursor:pointer}.rb-switch span{display:grid;gap:2px}.rb-switch b{font-size:14px}.rb-switch small{font-size:12px;color:var(--rb-muted)}.rb-switch input{position:absolute;opacity:0;pointer-events:none}.rb-switch i{position:relative;flex:none;width:44px;height:26px;border-radius:999px;background:var(--rb-edge);transition:background .2s}.rb-switch i:after{content:"";position:absolute;top:3px;left:3px;width:20px;height:20px;border-radius:999px;background:#fff;box-shadow:0 1px 3px #0003;transition:transform .2s}.rb-switch input:checked+i{background:var(--rb-accent)}.rb-switch input:checked+i:after{transform:translate(18px)}.rb-switch input:focus-visible+i{outline:2px solid var(--rb-accent);outline-offset:2px}.rb-sheet{align-self:flex-start;width:100%;max-width:640px;max-height:100%;overflow-y:auto;padding:52px 56px;border-radius:18px;background:var(--rb-page);box-shadow:var(--rb-shadow);text-align:center}.rb-sheet .rb-sub{font-size:18px}.rb-summary{display:grid;gap:8px;margin:0;padding:0;list-style:none;text-align:left}.rb-summary li{display:grid;gap:2px;padding:12px 16px;border-radius:12px;border:1px solid var(--rb-line)}.rb-summary span{font-size:12.5px;font-weight:600;color:var(--rb-accent)}.rb-summary b{font-family:var(--rb-serif);font-weight:600}.rb-loading,.rb-empty,.rb-error{margin:0;font-family:var(--rb-serif);font-size:18px;color:var(--rb-muted)}.rb-empty{margin-bottom:24px}.rb-error{color:var(--rb-bad)}.rb-loading{display:inline-flex;align-items:center;gap:12px}.rb-spinner{width:18px;height:18px;border-radius:999px;border:2px solid var(--rb-line);border-top-color:var(--rb-accent);animation:rb-spin .8s linear infinite}.rb-turn-fwd{animation:rb-turn-fwd .26s cubic-bezier(.2,.7,.2,1) both}.rb-turn-back{animation:rb-turn-back .26s cubic-bezier(.2,.7,.2,1) both}@keyframes rb-turn-fwd{0%{opacity:0;transform:translate(16px)}to{opacity:1;transform:none}}@keyframes rb-turn-back{0%{opacity:0;transform:translate(-16px)}to{opacity:1;transform:none}}@keyframes rb-rise{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}@keyframes rb-pop{0%{opacity:0;transform:translateY(-6px) scale(.98)}to{opacity:1;transform:none}}@keyframes rb-spin{to{transform:rotate(360deg)}}@keyframes rb-flip-fwd{0%{opacity:.2;transform:perspective(1400px) translate(38%) rotateY(-24deg)}to{opacity:1;transform:none}}@keyframes rb-flip-back{0%{opacity:.2;transform:perspective(1400px) translate(-38%) rotateY(24deg)}to{opacity:1;transform:none}}@media(max-width:1180px){.rb-top-section,.rb-top-sep{display:none}.rb-stage{padding:20px 20px 24px}.rb-text{padding:26px 36px 34px 58px}.rb-q{padding:26px 34px 10px 38px}.rb-actions{padding:14px 34px 18px 38px}.rb-ribbon{right:28px}}.rb.is-mobile .rb-top{height:54px;grid-template-columns:auto 1fr auto;gap:10px;padding:0 12px 0 14px}.rb.is-mobile .rb-logo-text,.rb.is-mobile .rb-top-section,.rb.is-mobile .rb-top-sep,.rb.is-mobile .rb-chip.strong{display:none}.rb.is-mobile .rb-top-mid{justify-content:center}.rb.is-mobile .rb-chip{height:28px;padding:0 11px;font-size:12px}.rb.is-mobile .rb-top-right{gap:8px}.rb.is-mobile .rb-timer{font-size:13px}.rb.is-mobile .rb-timer svg{display:none}.rb.is-mobile .rb-aa,.rb.is-mobile .rb-icon{width:36px;height:36px}.rb.is-mobile .rb-exit{display:none}.rb.is-mobile .rb-logo-mark{width:32px;height:32px}.rb.is-mobile .rb-stage{padding:0;overflow:hidden}.rb.is-mobile .rb-book{display:block;max-width:none;filter:none}.rb.is-mobile 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