.case-difficulty{display:flex;flex-wrap:wrap;gap:14px 30px;margin:1rem 0 1.4rem}.case-difficulty>div{display:grid;gap:4px}.case-difficulty dt{font-size:17px;line-height:1.4;color:#675b6f}.case-difficulty dd{font-size:18px;line-height:1.4;font-weight:650;margin:0;color:#302537}.case-difficulty-compact{gap:12px 26px;margin:1rem 0}.case-difficulty-compact dt{font-size:16px}.case-difficulty-compact dd{font-size:17px}
.case-stretch{max-width:980px;margin:0 auto;padding-bottom:2rem}.case-stretch h1{font-size:34px;line-height:1.2;margin:1rem 0}.case-stretch h2{font-size:27px;line-height:1.3;margin:0 0 1rem}.case-stretch h3{font-size:22px;line-height:1.4}.case-stretch p,.case-stretch li,.case-stretch label,.case-stretch summary,.case-stretch legend{font-size:18px;line-height:1.65}.case-stretch header{max-width:780px}.case-stretch-nav{display:flex;flex-wrap:wrap;gap:14px 28px;padding:1.2rem 0;border-block:1px solid #d9d1df;margin:1.5rem 0 2rem}.case-stretch-nav a{font-size:18px}.case-stretch>section{padding:1rem 0 2rem;scroll-margin-top:110px}.case-stretch>section+section{border-top:1px solid #d9d1df;padding-top:2.2rem}.case-stretch textarea{display:block;width:100%;font:inherit;font-size:18px;line-height:1.65;padding:14px;border:1px solid #aa9cb5;border-radius:4px;margin:.6rem 0 1rem;resize:vertical}.case-stretch-data{margin:1.3rem 0 1.8rem}.case-stretch-data>summary{font-weight:600;color:#56366b;cursor:pointer}.case-stretch-data>section{padding:1.2rem 0;border-bottom:1px solid #e1d9e6}.case-stretch-data .table-wrap{max-width:100%;overflow:auto}.case-stretch-data th,.case-stretch-data td{font-size:17px;line-height:1.5;white-space:normal;min-width:110px;padding:12px}.case-stretch-working{margin:1.5rem 0}.case-stretch-working label{display:block;margin-top:1rem}.case-stretch #stretch-quant-solution,.case-stretch-qual-model{padding:1.4rem 1.6rem;background:#f5f1f7;border-left:3px solid #6b4982;margin-top:1.5rem}.case-stretch #stretch-quant-solution li{padding:.3rem 0}.case-stretch-qual-model fieldset{border:0;border-top:1px solid #d7ccdf;margin:1.5rem 0 0;padding:1rem 0 0}.case-stretch-qual-model legend{font-weight:650}.case-stretch-qual-model label{display:flex;gap:12px;font-weight:400;padding:.5rem 0}.case-stretch-qual-model input{width:20px;height:20px;flex:none;margin-top:.35rem;accent-color:#56366b}.case-stretch-original{margin-top:1.2rem}.case-stretch-saved{white-space:pre-wrap;overflow-wrap:anywhere;font-size:18px;line-height:1.65}.case-stretch footer{display:flex;gap:14px 22px;flex-wrap:wrap;align-items:center;border-top:1px solid #d9d1df;padding-top:1.4rem}.case-stretch footer>p{flex:1 1 100%;margin:0}.case-stretch .btn{white-space:normal;line-height:1.4}.case-stretch-invitation{padding:1.5rem 0;margin:1rem 0;border-block:1px solid #ded5e3}.case-stretch-invitation h3{margin-top:0}.case-stretch-invitation p{font-size:18px;line-height:1.6}.case-stretch-history{padding:1.2rem 0}.case-stretch-history h4{font-size:19px;margin:1.3rem 0 .5rem}
@media(max-width:600px){.case-stretch h1{font-size:29px}.case-stretch h2{font-size:24px}.case-stretch #stretch-quant-solution,.case-stretch-qual-model{padding:1.2rem 1rem}.case-stretch-nav{gap:12px 20px}.case-difficulty{gap:12px 22px}.case-stretch footer .btn{width:100%;text-align:center}}