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ease}.ob-pill.on{background:var(--accent);border-color:var(--accent);color:#fff;box-shadow:var(--shadow-accent)}.ob-opt{display:flex;align-items:center;gap:12px;width:100%;border:1.5px solid var(--border2);border-radius:16px;background:#fff;padding:14px 16px;font-weight:600;font-size:14.5px;margin-bottom:10px;text-align:left;transition:all .15s ease}.ob-opt .ico{width:34px;height:34px;display:grid;place-items:center;border-radius:10px;background:var(--bg-sunken);font-family:var(--font-jp);transition:all .18s ease;flex:none}.ob-opt.on{border-color:var(--accent);background:var(--accent-wash)}.ob-opt.on .ico{background:var(--accent);color:#fff;transform:rotate(-4deg)}.empty{text-align:center;padding:44px 20px}.empty-flower{width:74px;height:74px;margin:0 auto 14px;opacity:.5}.empty b{font-family:var(--font-display);font-size:18px;display:block;margin-bottom:6px}.empty p{color:var(--ink-soft);font-size:13.5px;margin-bottom:18px;max-width:360px;margin-left:auto;margin-right:auto}.petals,.scatter{position:absolute;top:0;right:0;bottom:0;left:0;pointer-events:none;overflow:hidden}.petals{z-index:1}.petal{position:absolute;top:-30px;left:calc((var(--i) * 15% + 4%));width:calc(14px + (var(--i) - 3) * 2px);aspect-ratio:1;opacity:0;animation:petal-fall calc(11s + var(--i) * 2.3s) linear infinite;animation-delay:calc(var(--i) * -3.7s)}@keyframes petal-fall{0%{transform:translateY(-4vh) translate(0) rotate(0);opacity:0}8%{opacity:.85}50%{transform:translateY(50vh) translate(6vw) rotate(200deg)}92%{opacity:.6}to{transform:translateY(108vh) translate(-3vw) rotate(390deg);opacity:0}}@media (prefers-reduced-motion: reduce){.petals{display:none}.page,.big-hanko{animation:none}}@media (max-width: 1100px){.work-rail{flex-basis:300px;width:300px}}@media (max-width: 980px){.shell{grid-template-columns:1fr}.sidebar{display:none}.topbar,.tabbar{display:flex}.work{flex-direction:column;padding:22px 18px calc(env(safe-area-inset-bottom,0px) + 110px)}.work-center{max-width:none;margin:0}.work-rail{flex-basis:auto;width:100%;padding-left:0;margin-top:22px}.rail-breath{display:none}.twocol{flex-direction:column}.page-title{font-size:28px}.review-body{flex-wrap:wrap}.review-stat{flex:1;width:auto;min-width:130px}.review-cta{width:100%;justify-content:center;margin-left:0}.gram-card{flex-direction:column;align-items:stretch;gap:18px}.gram-next{padding-left:0;border-left:0;border-top:1px solid var(--border);padding-top:18px}.hub-grid,.queue-grid{grid-template-columns:1fr}.grades{flex-wrap:wrap}.grade{flex:1;min-width:44%;max-width:none}.auth-brand{display:none}.play{padding:20px 18px calc(env(safe-area-inset-bottom,0px) + 20px)}.fc-kanji{font-size:64px}.fc-kana{font-size:52px}}@media (max-width: 460px){.greet-ja{font-size:34px}.wrow-jp{width:116px}.finish-stat{width:44%;min-width:0}.date-txt{display:none}}