.hl{--ac:#047857;--ac2:#38BDF8;--acg:linear-gradient(90deg,#047857,#0EA5E9 55%,#6366F1)}
.ghero{position:relative;text-align:center;padding:5svh 0 18px}
.game{position:relative;background:#fff;border-radius:28px;padding:16px;box-shadow:0 1px 2px rgba(14,17,22,.05),0 20px 50px rgba(4,120,87,.14);overflow:hidden}
.gtop{margin-bottom:14px}
.ghud{display:flex;justify-content:space-between;gap:6px;font-size:12px;font-weight:800;color:var(--ink2);white-space:nowrap}.ghud b{font-size:16px;font-variant-numeric:tabular-nums}
#stw.hot{color:#EA580C;animation:pop .35s}
.tbar{height:6px;border-radius:99px;background:#EEF0F4;margin-top:10px;overflow:hidden}.tbar i{display:block;height:100%;width:100%;border-radius:99px;background:linear-gradient(90deg,#047857,#0EA5E9)}.tbar i.hot{background:#EF4444}
/* AIとのチャット */
.chat{display:grid;gap:10px}
.me{display:flex;justify-content:flex-end}.me p{margin:0;max-width:86%;padding:10px 14px;border-radius:18px 18px 4px 18px;background:linear-gradient(90deg,#047857,#0EA5E9);color:#fff;font-size:14.5px;font-weight:700;line-height:1.6}
.ai{position:relative;display:flex;gap:8px;align-items:flex-start;cursor:pointer}
.aiav{flex:none;width:36px;height:36px;border-radius:50%;display:grid;place-items:center;font-size:20px;background:#ECFDF5}
.ai>div{min-width:0;flex:1}.ai small{display:block;font-size:10.5px;font-weight:800;color:var(--mut);margin:0 0 3px 4px}
.ans{margin:0;padding:12px 14px;border-radius:4px 18px 18px 18px;background:#F1F5F9;font-size:15px;line-height:1.85;font-weight:600;color:var(--ink);overflow-wrap:anywhere;min-height:3em}
.ans.ty:after{content:"";display:inline-block;width:2px;height:1.05em;margin-left:2px;vertical-align:-.15em;background:#047857;animation:blink .8s steps(2) infinite}
@keyframes blink{50%{opacity:0}}
/* 文ごとにタップ。判定前は🚩以外の見た目を変えない */
.sn{border-radius:6px;padding:1px 2px;cursor:pointer;border-bottom:2px dashed #94A3B8;transition:background .15s,box-shadow .15s;-webkit-box-decoration-break:clone;box-decoration-break:clone}
@media(hover:hover){.sn:not(.ok):not(.lie):hover{background:#E2E8F0}}
.sn.flag{background:#FEF3C7;box-shadow:0 0 0 2px #F59E0B}
.sn.flag:before{content:"🚩";margin-right:2px}
.sn.lie{background:#FEE2E2;color:#991B1B;text-decoration:line-through;text-decoration-color:rgba(220,38,38,.7);cursor:default}
.sn.ok{cursor:default;color:var(--ink2)}.sn.wrongflag{background:#F1F5F9;box-shadow:0 0 0 2px #94A3B8}
.fix{display:block;margin:6px 0;padding:8px 10px;border-radius:10px;background:#ECFDF5;color:#065F46;font-size:13.5px;font-weight:800;line-height:1.6;animation:pop .35s var(--ease)}
.stamp{position:absolute;right:4px;top:-6px;z-index:3;padding:2px 10px;border:3px solid;border-radius:10px;font-size:14px;font-weight:900;background:rgba(255,255,255,.95);transform:rotate(-6deg);animation:stp .45s var(--ease);white-space:nowrap}
.stamp.g{color:#16A34A;border-color:#16A34A}.stamp.r{color:#DC2626;border-color:#DC2626}
@keyframes stp{0%{transform:scale(2.2) rotate(-20deg);opacity:0}60%{transform:scale(.92) rotate(-4deg);opacity:1}100%{transform:rotate(-6deg)}}
.boss{display:flex;gap:8px;align-items:flex-start;animation:pop .35s var(--ease) .3s both}
.boss>span{flex:none;width:36px;height:36px;border-radius:50%;display:grid;place-items:center;font-size:20px;background:#FEF2F2}
.boss p{margin:0;padding:10px 14px;border-radius:4px 18px 18px 18px;background:#FEE2E2;color:#7F1D1D;font-size:14.5px;font-weight:800;line-height:1.6}.boss small{display:block;font-size:10.5px;color:#B91C1C}
.btns{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:14px}.btns[hidden]{display:none}
.btns button{height:60px;border:0;border-radius:999px;font:inherit;font-size:15.5px;font-weight:900;cursor:pointer;color:#fff;transition:opacity .2s,transform .15s}.btns button:active{transform:scale(.97)}
.btns .fk{background:linear-gradient(90deg,#B45309,#F59E0B);box-shadow:0 8px 20px rgba(245,158,11,.3)}.btns .ok{background:linear-gradient(90deg,#047857,#10B981);box-shadow:0 8px 20px rgba(16,185,129,.3)}.btns button:disabled{opacity:.35}
.hint{margin:8px 0 0;text-align:center;font-size:11px;color:var(--mut)}.hint[hidden]{display:none}
#play[hidden]{display:none}
.res{margin-top:12px;border-radius:16px;padding:14px;font-size:13px;line-height:1.75;animation:pop .35s}.res[hidden]{display:none}
.res.right{background:#F0FDF4}.res.wrong{background:#FEF2F2}
.res b{display:block;font-size:16px}.res.right b{color:#16A34A}.res.wrong b{color:#DC2626}
.res p{margin:6px 0 0;color:var(--ink2)}.res .lb{display:block;font-size:11px;font-weight:800;color:var(--ac);margin-bottom:2px}.res .src,.rvw .src{font-size:11px;color:var(--mut)}
.res .nx{display:block;width:100%;margin-top:12px;height:52px;border:0;border-radius:999px;background:var(--ink);color:#fff;font:inherit;font-size:16px;font-weight:900;cursor:pointer}
.combo{position:absolute;left:50%;top:32%;transform:translateX(-50%);z-index:6;font-size:clamp(22px,7vw,30px);font-weight:900;color:#EA580C;text-shadow:0 2px 0 #fff,0 4px 14px rgba(234,88,12,.35);pointer-events:none;white-space:nowrap;animation:combo 1.1s var(--ease) forwards}
@keyframes combo{0%{opacity:0;transform:translate(-50%,10px) scale(.7)}25%{opacity:1;transform:translate(-50%,0) scale(1.08)}75%{opacity:1}100%{opacity:0;transform:translate(-50%,-24px)}}
.game.shake{animation:shk .45s}@keyframes shk{20%{transform:translateX(-6px)}40%{transform:translateX(6px)}60%{transform:translateX(-4px)}80%{transform:translateX(3px)}}
.end{margin-top:4px;animation:pop .4s var(--ease)}.end[hidden]{display:none}
.vs{display:flex;flex-wrap:wrap;justify-content:center;gap:4px 14px;margin:12px 0 0;padding:10px 12px;border-radius:12px;background:#fff;font-size:13px;font-weight:700;text-align:center;color:var(--ink2)}.vs span{white-space:nowrap}.vs b{color:var(--ink)}
.rvw{display:grid;grid-template-columns:28px 1fr;gap:4px 10px;padding:14px 0;border-bottom:1px solid #F1F5F9}.rvw:last-child{border-bottom:0}.rvw .mk{font-size:18px}.rvw b{font-size:13.5px;line-height:1.6}
.rvw p{grid-column:2;margin:0;font-size:12.5px;color:var(--ink2);line-height:1.75}.rvw p.q{font-size:13.5px;color:#991B1B;margin:4px 0}.rvw p.q.ok{color:#166534}
.tips{margin:0;padding-left:1.3em;color:#C9CCD6;font-size:14px;line-height:1.8}.tips li{margin:0 0 12px}.tips b{display:block;color:#fff}
.mt0{margin:0 0 10px;font-size:13px;color:var(--ink2);line-height:1.75}
.ctap{color:#C9CCD6;font-size:14px;margin:0 0 16px;line-height:1.75}.cta-c h3{color:var(--ac2)}
#revc[hidden],#sharec[hidden]{display:none}
@media(max-width:360px){.game{padding:12px}.ghud{gap:4px;font-size:10.5px;letter-spacing:-.02em}.ghud b{font-size:14px}.btns button{font-size:14px}.ans{font-size:14px}}
@media(prefers-reduced-motion:reduce){.fix,.boss{animation:none}}

/* 操作の案内：答えが出たら、文をタップするよう目立たせる */
.guide{margin:2px 0 0 44px;padding:10px 14px;border-radius:14px;background:#FEF3C7;color:#92400E;font-size:15px;font-weight:900;text-align:center;box-shadow:0 0 0 2px #F59E0B;animation:gd 1.2s ease-in-out infinite}
.guide.set{background:#ECFDF5;color:#065F46;box-shadow:0 0 0 2px #10B981}
.guide[hidden]{display:none}
@keyframes gd{0%,100%{transform:none}50%{transform:translateY(-3px)}}
.sn.lie,.sn.ok{border-bottom-color:transparent}
.ans.coach .sn:first-child{position:relative;animation:coach 1.4s ease-out infinite}
@keyframes coach{0%{box-shadow:0 0 0 0 rgba(245,158,11,.7)}70%{box-shadow:0 0 0 10px rgba(245,158,11,0)}100%{box-shadow:0 0 0 0 rgba(245,158,11,0)}}
@media(prefers-reduced-motion:reduce){.guide,.ans.coach .sn:first-child{animation:none}}
@media(max-width:360px){.guide{margin-left:0;font-size:14px;padding:9px 10px}}