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var(--card-border);border-radius:999px;padding:4px;box-shadow:var(--shadow-sm)}.store-switch__btn{border:0;background:transparent;padding:.45rem .9rem;border-radius:999px;cursor:pointer;font-weight:700;color:var(--color-muted)}.store-switch__btn.is-active{background:var(--color-primary-weak);color:var(--color-primary)}.thumb-caption{display:none;position:absolute;left:8px;bottom:6px;background:#ffffffd9;border:1px solid var(--card-border);border-radius:8px;padding:.2rem .45rem;font-weight:700;font-size:.85rem}.thumb-effect,.thumb-decor{position:relative;width:100%;height:100%;border:1px dashed var(--card-border);border-radius:10px;background:#fafafa;overflow:hidden}.preview-confetti span{position:absolute;top:-10px;left:calc(6% + (var(--i) * 5%));width:8px;height:12px;border-radius:2px;background:hsl(calc(var(--i)*20),90%,55%);animation:p-confetti var(--dur, 2.2s) ease-in infinite;animation-delay:var(--delay, 0s)}@keyframes p-confetti{to{transform:translateY(160px) rotate(300deg);opacity:.9}}.preview-fireworks{background:radial-gradient(circle at 50% 60%,#fff6 0,#fff0 40%)}.preview-fireworks span{position:absolute;left:50%;top:60%;width:5px;height:5px;border-radius:50%;background:hsl(calc(var(--i)*12),90%,55%);transform-origin:0 0;transform:rotate(calc(360deg/var(--n) * var(--i))) translate(0);animation:p-fw var(--dur, 2.4s) ease-out infinite;animation-delay:var(--delay, 0s)}@keyframes p-fw{to{transform:rotate(calc(360deg/var(--n) * var(--i))) translate(90px,-12px);opacity:0}}.preview-sparks span{position:absolute;left:50%;top:60%;width:4px;height:4px;border-radius:50%;background:#ff941a;filter:drop-shadow(0 0 4px #fff);transform-origin:0 0;transform:rotate(calc(360deg/var(--n) * var(--i))) translate(0);animation:p-spark var(--dur, 2.1s) ease-out infinite;animation-delay:var(--delay, 0s)}@keyframes p-spark{to{transform:rotate(calc(360deg/var(--n) * var(--i))) translate(80px,-10px);opacity:0}}.preview-formula_rain span{position:absolute;top:-8px;left:calc(6% + (var(--i) * 6%));font:800 16px/1 system-ui,sans-serif;color:#475569;animation:p-form var(--dur, 2s) linear infinite;animation-delay:var(--delay, 0s)}.preview-formula_rain span:before{content:attr(data-symbol)}@keyframes p-form{to{transform:translateY(160px)}}.preview-progress_salute{background:transparent;position:relative;display:grid;place-items:center}.preview-progress_salute:after{content:"";position:absolute;left:8%;right:8%;top:50%;transform:translateY(-50%);height:10px;border-radius:999px;background:linear-gradient(90deg,#7c3aed,#22c55e,#f59e0b,#06b6d4,#ef4444);background-size:200% 100%;animation:progress-salute-flow 2.2s linear infinite;box-shadow:0 0 10px #00000014,0 0 18px #00000010}@keyframes progress-salute-flow{0%{background-position:0% 50%}to{background-position:200% 50%}}.decor-snow{position:fixed;top:0;right:0;bottom:0;left:0;z-index:1500;pointer-events:none;overflow:hidden}.decor-grass{position:fixed;left:0;right:0;bottom:0;top:auto;height:90px;z-index:5000;pointer-events:none;background:linear-gradient(#3ecf8e 35%,#2aa66f 70%);clip-path:polygon(0 40%,5% 60%,10% 38%,15% 62%,20% 40%,25% 65%,30% 42%,35% 60%,40% 38%,45% 65%,50% 40%,55% 60%,60% 38%,65% 65%,70% 42%,75% 62%,80% 38%,85% 60%,90% 40%,95% 64%,100% 38%,100% 100%,0 100%)}.decor-snow span{position:absolute;top:-8vh;left:calc(2vw + var(--i) * 2.2vw);width:var(--sz, 6px);height:var(--sz, 6px);border-radius:50%;background:#a5e6f1;opacity:var(--op, .95);animation:snow-fall var(--dur, 10s) linear infinite,snow-sway var(--sway, 3.5s) ease-in-out infinite alternate;animation-delay:var(--delay, 0s)}@keyframes snow-fall{to{transform:translateY(115vh)}}@keyframes snow-sway{0%{margin-left:-10px}to{margin-left:10px}}.decor-snow span:nth-child(3n){--sz: 8px;--dur: 11.5s;--sway: 3.2s}.decor-snow span:nth-child(4n){--sz: 5px;--dur: 9.4s;--sway: 2.7s}.decor-snow span:nth-child(5n){--sz: 7px;--dur: 13s;--sway: 3.8s}.decor-snow span:nth-child(7n){--delay: -2.2s}.decor-snow span:nth-child(9n){--delay: -1.4s}.decor-math{position:fixed;top:0;right:0;bottom:0;left:0;z-index:-1;pointer-events:none;opacity:.5;background-attachment:fixed;background-repeat:repeat;background-size:240px 240px;background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='240' height='240'><rect width='100%' height='100%' fill='white'/><g fill='%23cbd5e1' font-family='system-ui,Segoe UI,Arial' font-weight='700'>  <text x='20'  y='50'  font-size='28'>∑</text>  <text x='90'  y='80'  font-size='26'>∫</text>  <text x='160' y='60'  font-size='24'>π</text>  <text x='40'  y='150' font-size='24'>√</text>  <text x='130' y='160' font-size='22'>x²</text>  <text x='190' y='140' font-size='22'>≈</text>  <text x='70'  y='210' font-size='24'>→</text></g></svg>")}.thumb-decor.decor-math_bg{background-attachment:local;background-repeat:repeat;background-size:120px 120px;background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='240' height='240'><rect width='100%' height='100%' fill='white'/><g fill='%23cbd5e1' font-family='system-ui,Segoe UI,Arial' font-weight='700'>  <text x='20'  y='50'  font-size='28'>∑</text>  <text x='90'  y='80'  font-size='26'>∫</text>  <text x='160' y='60'  font-size='24'>π</text>  <text x='40'  y='150' font-size='24'>√</text>  <text x='130' y='160' font-size='22'>x²</text>  <text x='190' y='140' font-size='22'>≈</text>  <text x='70'  y='210' font-size='24'>→</text></g></svg>")}.thumb-decor.decor-grass_footer{background:linear-gradient(#34d399 35%,#10b981 70%) bottom / 100% 40% no-repeat,linear-gradient(#e5f8ff,#ffffff)}.thumb-decor.decor-snow_fall{background:linear-gradient(#dbeafe,#ffffff)}.thumb-decor.decor-snow_fall b{position:absolute;top:-8px;left:calc(4% + (var(--i) * 5%));width:6px;height:6px;border-radius:50%;background:#a5e6f1;animation:p-snow var(--dur, 2.6s) linear infinite;animation-delay:var(--delay, 0s);opacity:.9}@keyframes p-snow{to{transform:translateY(160px)}}.thumb-decor.decor-math_bg{background-attachment:local;background-repeat:repeat;background-size:120px 120px;background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='240' height='240'><rect width='100%' height='100%' fill='white'/><g fill='%23cbd5e1' font-family='system-ui,Segoe UI,Arial' font-weight='700'>  <text x='20'  y='50'  font-size='28'>∑</text>  <text x='90'  y='80'  font-size='26'>∫</text>  <text x='160' y='60'  font-size='24'>π</text>  <text x='40'  y='150' font-size='24'>√</text>  <text x='130' y='160' font-size='22'>x²</text>  <text x='190' y='140' font-size='22'>≈</text>  <text x='70'  y='210' font-size='24'>→</text></g></svg>")}@keyframes math-pan{0%{background-position:0 0}to{background-position:240px 240px}}.decor-grass .flower{position:absolute;bottom:10px;left:calc(var(--x, 0) * 1%);width:16px;height:22px;transform-origin:50% 100%;animation:flower-bloom var(--t, 6s) ease-in-out infinite;animation-delay:var(--d, 0s);pointer-events:none}.decor-grass .flower:before{content:"";position:absolute;left:7px;bottom:4px;width:2px;height:14px;background:#1f7a55;border-radius:2px;transform-origin:50% 100%;animation:stem-sway 2.8s ease-in-out infinite alternate;opacity:.9}.decor-grass .flower:after{content:"";position:absolute;left:2px;bottom:14px;width:12px;height:12px;border-radius:50%;background:radial-gradient(circle at 50% 0%,var(--c, #ff9bd2) 0 55%,transparent 57%),radial-gradient(circle at 100% 50%,var(--c, #ff9bd2) 0 55%,transparent 57%),radial-gradient(circle at 50% 100%,var(--c, #ff9bd2) 0 55%,transparent 57%),radial-gradient(circle at 0% 50%,var(--c, #ff9bd2) 0 55%,transparent 57%),radial-gradient(circle at 50% 50%,#ffe08a 0 35%,transparent 37%);filter:drop-shadow(0 1px 0 #00000014);transform:scale(.6)}@keyframes flower-bloom{0%{transform:translateY(6px) scale(.4);opacity:0}25%{transform:translateY(0) scale(1);opacity:1}70%{transform:translateY(0) scale(1);opacity:1}to{transform:translateY(0) scale(.4);opacity:0}}@keyframes stem-sway{0%{transform:rotate(-4deg)}to{transform:rotate(4deg)}}@media (max-width: 520px){.store-grid{grid-template-columns:repeat(auto-fill,minmax(180px,1fr))}}.store-header,.store-grid,.store-card,.store-title,.store-meta,.store-actions{min-width:0}.store-header{flex-wrap:wrap;align-items:flex-start;gap:6px 8px}.store-header .store-switch{flex:1 1 260px;min-width:0}.store-balance{flex:0 0 auto;white-space:nowrap}.store-switch{flex-wrap:wrap}.store-switch__btn{white-space:nowrap}@media (max-width: 420px){.store-grid{grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:8px}}@media (max-width: 360px){.store-grid{grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:8px}}@media 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li{padding-left:.1em}@media (max-width: 640px){.legal__content ul,.legal__content ol{list-style-position:inside;padding-left:0}.legal__content li{padding-left:0}}.legal__content li>ul,.legal__content li>ol{margin:.4rem 0 .2rem .75rem}.legal-toc{background:var(--bg-soft);border-radius:12px;padding:12px 14px;margin:1rem 0 1.25rem}.legal-toc>h2{font-size:clamp(16px,1vw + 12px,18px);margin:0 0 .4rem;color:var(--muted);text-transform:uppercase;letter-spacing:.02em}.legal-toc ol{margin:0;padding-left:1.25em;list-style:decimal}.legal-toc li{margin:.25rem 0}.legal-toc a{text-decoration:none;color:var(--text)}.legal-toc a:hover{color:var(--link)}@media (max-width: 640px){.legal-toc{padding:10px 12px;border-radius:10px}.legal-toc ol{padding-left:1em}}.legal__content .note,.legal__content .info,.legal__content .warn{border:1px solid var(--border);border-left-width:4px;padding:10px 12px;border-radius:8px;background:#fff}.legal__content .note{border-left-color:#3b82f6}.legal__content .info{border-left-color:#10b981}.legal__content .warn{border-left-color:#f59e0b}.legal__content .legal-table-wrap{display:block;max-width:100%;overflow-x:auto;-webkit-overflow-scrolling:touch;margin:.6rem 0;border:1px solid var(--border);border-radius:10px;padding:0;background:#fff}.legal__content .legal-table{width:var(--legal-table-width);border-collapse:collapse;table-layout:fixed;font-size:var(--legal-table-font);background:transparent;border:0}.legal__content .legal-table th,.legal__content .legal-table td{border-top:1px solid var(--border);padding:.55rem .7rem;vertical-align:top;overflow-wrap:anywhere;word-break:break-word}.legal__content .legal-table thead th{background:var(--bg-soft);text-align:left;border-top:0}@media (max-width: 480px){.legal{--legal-table-font: clamp(11px, 1vw + 10px, 13px);--legal-table-width: max(480px, 100vw)}}.legal__content blockquote{border-left:4px solid var(--border);margin-left:0;padding-left:1rem;color:var(--muted)}.legal__content hr{border:0;border-top:1px solid var(--border);margin:1rem 0}.legal__content img,.legal__content svg,.legal__content video,.legal__content iframe{max-width:100%;height:auto}.legal__content p,.legal__content li{overflow-wrap:anywhere}.notfound{padding:48px 0 64px}.notfound__inner{display:grid;gap:12px;justify-items:center;text-align:center}.notfound__img{max-width:720px;width:100%;height:auto;border-radius:12px;border:1px solid var(--card-border);box-shadow:var(--shadow-sm)}.notfound__title{font-size:clamp(1.6rem,3vw,2.2rem);margin:0}.notfound__text{color:var(--color-muted);max-width:60ch}.notfound__actions{display:flex;gap:10px;margin-top:6px}.fx-layer{pointer-events:none;position:fixed;top:0;right:0;bottom:0;left:0;z-index:9999}.fx-item{position:absolute}.fx-confetti .fx-item{top:-14px;left:calc(2% + (var(--i) * 1.6%));width:10px;height:14px;border-radius:2px;background:hsl(calc(var(--i)*13),90%,55%);animation:fx-conf var(--dur, 1.6s) ease-in forwards;animation-delay:var(--delay, 0s)}@keyframes fx-conf{to{transform:translateY(110vh) rotate(540deg);opacity:.95}}.fx-fireworks .fx-item{left:50vw;top:50vh;width:6px;height:6px;border-radius:50%;background:hsl(calc(var(--i)*6),90%,60%);box-shadow:0 0 10px #fff8;transform-origin:0 0;transform:rotate(calc(360deg/var(--n) * var(--i))) translate(0);animation:fx-fw var(--dur, 1.6s) ease-out forwards;animation-delay:var(--delay, 0s)}@keyframes fx-fw{70%{transform:rotate(calc(360deg/var(--n) * var(--i))) translate(32vw,-6vh);opacity:1}to{opacity:0}}.fx-sparks .fx-item{left:50vw;top:52vh;width:4px;height:4px;border-radius:50%;background:#ff941a;filter:drop-shadow(0 0 6px #fff);transform-origin:0 0;transform:rotate(calc(360deg/var(--n) * var(--i))) translate(0);animation:fx-spark var(--dur, 1.5s) ease-out forwards;animation-delay:var(--delay, 0s)}@keyframes fx-spark{to{transform:rotate(calc(360deg/var(--n) * var(--i))) translate(22vw,-4vh);opacity:0}}.fx-formula_rain .fx-item{top:-8vh;left:calc(2% + (var(--i) * 4%));font:800 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span{font-weight:800;font-size:.85rem}.user-name-link{display:block;font-weight:700;margin-bottom:.75rem;text-decoration:none;color:var(--color-text)}.user-name-link:hover{color:var(--color-accent)}.no-underline{text-decoration:none!important}.desktop-only{display:block}@media (max-width: 820px){.desktop-only{display:none}}.mobile-only{display:none}@media (max-width: 820px){.mobile-only{display:inline-block}}.header-stars{position:relative;font-weight:600;font-size:1rem;color:var(--color-text);overflow:visible}.stars-bump{animation:stars-bump .25s ease}@keyframes stars-bump{0%{transform:scale(1)}30%{transform:scale(1.12)}to{transform:scale(1)}}.star-fly{position:absolute;left:50%;bottom:0;transform:translate(-50%,8px) scale(.9);background:transparent;font-weight:700;white-space:nowrap;opacity:0;animation:star-fly-up .9s ease-out forwards;pointer-events:none}@keyframes star-fly-up{0%{opacity:0;transform:translate(-50%,8px) scale(.9)}15%{opacity:1;transform:translate(-50%) scale(1)}75%{opacity:1}to{opacity:0;transform:translate(-50%,-28px) scale(1)}}