.number-place-page .site-header__inner{min-height:68px}.number-place-page main{min-height:70vh}.number-place{--np-board-size:min(100%, 540px);--np-line:#dce6e2;--np-line-strong:#8ba8a3;--np-selected:#dcefeb;--np-related:#f1f6f4;--np-same:#e8f4f1;--np-warning-bg:#fff0ea;--np-warning-ink:#a55d4c;padding:clamp(34px,6vw,72px) 0 0}.number-place [hidden]{display:none!important}.np-game{width:min(100% - 28px,580px);margin-inline:auto;position:relative}.np-game__header{text-align:center;min-height:86px;position:relative}.np-game__heading{gap:3px;display:grid}.np-eyebrow,.np-title,.np-status,.np-start p,.np-info p,.np-info h2,.np-dialog p,.np-dialog h2{margin:0}.np-eyebrow{color:var(--site-teal);letter-spacing:.18em;font-family:Quicksand,sans-serif;font-size:.7rem;font-weight:700}.np-title{color:var(--site-ink);letter-spacing:.01em;font-family:Quicksand,Noto Sans JP,sans-serif;font-size:clamp(1.7rem,5vw,2.2rem);font-weight:700;line-height:1.2}.np-menu-button{width:44px;height:44px;color:var(--site-muted);font:inherit;letter-spacing:.08em;cursor:pointer;background:0 0;border:0;border-radius:50%;place-items:center;font-size:1.15rem;transition:background-color .14s ease-out,color .14s ease-out;display:inline-grid;position:absolute;top:8px;right:0}.np-menu-button:hover,.np-menu-button[aria-expanded=true]{color:var(--site-teal-dark);background:#397f7a17}.np-menu{z-index:4;text-align:left;background:#fffffffa;border:1px solid #397f7a21;border-radius:16px;width:min(220px,100vw - 40px);padding:7px;position:absolute;top:52px;right:0;overflow:hidden;box-shadow:0 16px 42px #2e414021}.np-menu button{width:100%;min-height:44px;color:var(--site-ink);font:inherit;text-align:left;cursor:pointer;background:0 0;border:0;border-radius:10px;padding:9px 12px;font-size:.92rem;font-weight:600}.np-menu button:hover{background:var(--np-related)}.np-status{width:var(--np-board-size);color:var(--site-muted);letter-spacing:.08em;justify-content:space-between;align-items:center;margin:2px auto 12px;font-family:Quicksand,Noto Sans JP,sans-serif;font-size:.78rem;font-weight:700;line-height:1.4;display:flex}.np-status__time{font-variant-numeric:tabular-nums;letter-spacing:.04em}.np-start{width:var(--np-board-size);text-align:center;align-content:center;justify-items:center;gap:24px;min-height:min(62vh,500px);margin-inline:auto;display:grid}.np-start__label{color:var(--site-ink);font-size:clamp(1rem,3vw,1.16rem);font-weight:700}.np-start__hint{max-width:360px;color:var(--site-muted);font-size:.8rem;line-height:1.7}.np-difficulty-list{flex-wrap:wrap;justify-content:center;gap:8px;display:flex}.np-difficulty-list button{border:1px solid var(--site-line);min-width:104px;min-height:46px;color:var(--site-ink);letter-spacing:.09em;cursor:pointer;background:#ffffffb8;border-radius:999px;padding:0 18px;font-family:Quicksand,sans-serif;font-size:.8rem;font-weight:700;transition:transform .12s ease-out,border-color .14s ease-out,background-color .14s ease-out,color .14s ease-out}.np-difficulty-list button:hover{color:var(--site-teal-dark);background:#fff;border-color:#397f7a7a}.np-difficulty-list button:active{transform:scale(.98)}.np-play{width:var(--np-board-size);margin-inline:auto}.np-board{aspect-ratio:1;border:2px solid var(--np-line-strong);background:var(--site-paper);border-radius:4px;grid-template-columns:repeat(9,1fr);width:100%;display:grid;overflow:hidden;box-shadow:0 14px 36px #2e41400f}.np-cell{border:0;border-right:1px solid var(--np-line);border-bottom:1px solid var(--np-line);min-width:0;min-height:0;color:var(--site-teal-dark);font-variant-numeric:tabular-nums;cursor:pointer;-webkit-tap-highlight-color:transparent;background:#fff;place-items:center;padding:0;font-family:Quicksand,Noto Sans JP,sans-serif;font-size:clamp(1.08rem,5.4vw,1.92rem);font-weight:600;line-height:1;transition:background-color .15s ease-out,color .15s ease-out;display:grid;position:relative}.np-cell:nth-child(9n){border-right:0}.np-cell:nth-child(9n+3),.np-cell:nth-child(9n+6){border-right:2px solid var(--np-line-strong)}.np-cell:nth-child(n+19):nth-child(-n+27),.np-cell:nth-child(n+46):nth-child(-n+54){border-bottom:2px solid var(--np-line-strong)}.np-cell:nth-child(n+73){border-bottom:0}.np-cell.is-given{color:var(--site-ink);font-weight:700}.np-cell.is-related{background:var(--np-related)}.np-cell.is-same{background:var(--np-same)}.np-cell.is-selected{background:var(--np-selected)}.np-cell.is-conflict{background:var(--np-warning-bg);color:var(--np-warning-ink)}.np-cell.is-selected.is-conflict{box-shadow:inset 0 0 0 2px #a55d4c57}.np-cell__value{display:inline-block}.np-cell.is-entering .np-cell__value{animation:.12s ease-out np-value-in}.np-notes{color:#738783;grid-template-rows:repeat(3,1fr);grid-template-columns:repeat(3,1fr);place-items:center;width:100%;height:100%;padding:7%;font-family:Quicksand,sans-serif;font-size:clamp(.42rem,1.55vw,.65rem);font-weight:600;line-height:1;display:grid}.np-number-pad{grid-template-columns:repeat(9,1fr);gap:0;margin-top:clamp(18px,4vw,26px);display:grid}.np-number-pad button{min-width:0;min-height:48px;color:var(--site-teal-dark);font-variant-numeric:tabular-nums;cursor:pointer;-webkit-tap-highlight-color:transparent;background:0 0;border:0;border-radius:10px;padding:0;font-family:Quicksand,sans-serif;font-size:clamp(1.15rem,4.5vw,1.48rem);font-weight:700;transition:background-color .12s ease-out,transform .12s ease-out}.np-number-pad button:hover{background:#397f7a14}.np-number-pad button:active{transform:scale(.94)}.np-tools{grid-template-columns:repeat(3,1fr);gap:12px;width:min(100%,340px);margin:12px auto 0;display:grid}.np-tool{min-height:64px;color:var(--site-muted);font:inherit;cursor:pointer;background:0 0;border:0;border-radius:14px;align-content:center;justify-items:center;gap:3px;padding:6px;font-size:.72rem;font-weight:700;transition:background-color .14s ease-out,color .14s ease-out,opacity .14s ease-out;display:grid}.np-tool:hover:not(:disabled),.np-tool.is-active{color:var(--site-teal-dark);background:#397f7a14}.np-tool.is-active{box-shadow:inset 0 -2px #397f7a6b}.np-tool:disabled{opacity:.3;cursor:default}.np-tool__icon{font-family:Quicksand,sans-serif;font-size:1.28rem;font-weight:600;line-height:1}.np-tool__icon--memo{letter-spacing:.05em;font-size:.66rem;font-weight:700}.np-info{border-top:1px solid #397f7a29;width:min(100% - 40px,720px);margin:clamp(88px,12vw,140px) auto 88px;padding-top:34px}.np-info h2{margin-bottom:18px;font-family:Quicksand,Noto Sans JP,sans-serif;font-size:1.15rem;line-height:1.4}.np-info p{color:var(--site-muted);font-size:.91rem;line-height:1.9}.np-info p+p{margin-top:10px}.np-dialog{width:min(420px,100% - 32px);max-width:none;color:var(--site-ink);background:#fffffffa;border:1px solid #397f7a24;border-radius:22px;padding:0;box-shadow:0 24px 70px #2e41402e}.np-dialog::backdrop{backdrop-filter:blur(3px);background:#2e41403d}.np-dialog__inner{text-align:center;padding:36px 28px 30px;position:relative}.np-dialog__inner h2{margin-bottom:24px;font-size:1.08rem;line-height:1.5}.np-dialog__close{width:44px;height:44px;color:var(--site-muted);font:inherit;cursor:pointer;background:0 0;border:0;border-radius:50%;place-items:center;font-size:1.35rem;display:grid;position:absolute;top:10px;right:10px}.np-difficulty-list--dialog{flex-direction:column;align-items:stretch}.np-difficulty-list--dialog button{width:100%}.np-dialog__inner--confirm{padding-top:34px}.np-dialog__message{font-weight:700;line-height:1.8}.np-dialog__actions{grid-template-columns:1fr 1fr;gap:10px;margin-top:28px;display:grid}.np-dialog__actions button,.np-complete__new{border:1px solid var(--site-line);min-height:46px;color:var(--site-ink);font:inherit;cursor:pointer;background:#fff;border-radius:999px;padding:0 18px;font-size:.84rem;font-weight:700}.np-dialog__actions .np-dialog__primary,.np-complete__new{border-color:var(--site-teal);background:var(--site-teal);color:#fff}.np-dialog__inner--complete{justify-items:center;padding:44px 28px 36px;display:grid}.np-complete__title{letter-spacing:.02em;font-family:Quicksand,sans-serif;font-size:clamp(1.7rem,6vw,2.25rem);font-weight:700}.np-complete__time-label{color:var(--site-muted);letter-spacing:.08em;font-size:.72rem;font-weight:700;margin-top:22px!important}.np-complete__time{font-variant-numeric:tabular-nums;font-family:Quicksand,sans-serif;font-size:1.45rem;font-weight:700;margin-top:3px!important}.np-complete__new{letter-spacing:.08em;min-width:150px;margin-top:28px;font-family:Quicksand,sans-serif;font-size:.76rem}.np-board.is-complete .np-cell{animation:.48s ease-out both np-complete-wave;animation-delay:calc(var(--np-wave) * 24ms)}@keyframes np-value-in{0%{opacity:.45;transform:scale(.94)}to{opacity:1;transform:scale(1)}}@keyframes np-complete-wave{0%,to{background-color:#fff}50%{background-color:#e5f3ef}}@media (width<=580px){.number-place-page .site-header__inner{min-height:60px}.number-place{padding-top:26px}.np-game{width:min(100% - 24px,580px)}.np-game__header{min-height:78px}.np-menu-button{top:2px}.np-status{margin-bottom:10px}.np-number-pad button{border-radius:8px;min-height:46px}.np-tools{margin-top:8px}.np-tool{min-height:60px}.np-info{width:min(100% - 28px,720px);margin-top:82px;margin-bottom:70px}}@media (width<=360px){.np-game{width:min(100% - 20px,580px)}.np-cell,.np-number-pad button{font-size:1.08rem}.np-tools{gap:6px}}@media (prefers-reduced-motion:reduce){.number-place *,.number-place :before,.number-place :after{scroll-behavior:auto!important;transition-duration:.001ms!important;animation-duration:.001ms!important;animation-delay:0s!important}}