.problem-page{background:#f5f7f4;color:#172019;overflow-x:hidden}.problem-page *{box-sizing:border-box}.problem-hero{padding:clamp(3rem,7vw,5.5rem) 0 2.7rem;background:#10291f;color:#fff}.problem-hero-inner{max-width:950px}.problem-hero h1{max-width:900px;margin:.55rem 0 1rem;font-size:clamp(2.05rem,5vw,4.15rem);line-height:1.08;letter-spacing:-.05em}.problem-hero p:not(.eyebrow){max-width:760px;margin:0;color:#e6efe8;font-size:clamp(1rem,2vw,1.18rem);line-height:1.72}.problem-tags{display:flex;flex-wrap:wrap;gap:.55rem;margin-top:1.3rem}.problem-tags span{padding:.44rem .75rem;border:1px solid #ffffff35;border-radius:999px;background:#ffffff12;font-size:.88rem}.problem-intro{display:grid;grid-template-columns:auto minmax(0,1fr);gap:1rem;align-items:center;margin-top:2rem;padding:1.15rem 1.3rem;border:1px solid #dce5d9;border-radius:16px;background:#fff}.problem-intro>strong{display:grid;place-items:center;width:62px;height:62px;border-radius:14px;background:#edf5dc;color:#36591c;font-variant-numeric:tabular-nums}.problem-intro h2{margin:0 0 .3rem;font-size:1.15rem}.problem-intro p{margin:0;color:#56635a;line-height:1.6}.problem-layout{display:grid;grid-template-columns:minmax(0,1.08fr) minmax(340px,.92fr);gap:1.25rem;align-items:start;padding-top:2rem;padding-bottom:2.5rem}.problem-panel{min-width:0;padding:clamp(1.1rem,3vw,2rem);border:1px solid #dce5d9;border-radius:12px;background:#fff;box-shadow:0 16px 44px #1a31200c}.problem-panel h2{margin:.15rem 0 .55rem}.problem-lead{margin:0 0 1.2rem;color:#59665d;line-height:1.65}.problem-form{display:grid;gap:1rem}.problem-card{min-width:0;padding:1rem;border:1px solid #dce5d9;border-radius:12px;background:#fbfcfa}.problem-card h3{margin:0 0 .7rem;font-size:1rem}.problem-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:.75rem}.problem-label{display:grid;gap:.4rem;min-width:0}.problem-label>span,.problem-fieldset legend{font-weight:760}.problem-label input,.problem-label select{width:100%;min-width:0;min-height:44px;padding:.65rem .72rem;border:1px solid #cbd8c8;border-radius:8px;background:#fff;color:inherit;font:inherit}.problem-fieldset{display:grid;gap:.65rem;margin:0;padding:1rem;border:1px solid #dce5d9;border-radius:12px}.problem-check-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:.55rem}.problem-option,.problem-confirm{display:flex;align-items:flex-start;gap:.55rem;min-height:44px;padding:.7rem .8rem;border:1px solid #e0e7de;border-radius:8px;background:#fff;line-height:1.45}.problem-option input,.problem-confirm input{width:20px;height:20px;margin-top:.05rem;flex:0 0 auto;accent-color:#35622e}.problem-confirm{border:0;background:#fff7e7;color:#674f22;font-weight:700}.problem-notice,.problem-privacy{margin:0;padding:.9rem 1rem;border-radius:10px;background:#f1f6ed;color:#4f5d53;font-size:.92rem;line-height:1.6}.problem-notice{background:#fff7e7;color:#674f22}.problem-actions{display:flex;flex-wrap:wrap;gap:.55rem;margin-top:.3rem}.problem-actions button{min-height:44px;padding:.7rem .95rem;border-radius:8px;font:inherit;font-weight:760;cursor:pointer}.problem-primary{border:1px solid #173d2b;background:#173d2b;color:#fff}.problem-secondary{border:1px solid #cad6c7;background:#fff;color:#243229}.problem-error{margin:0;padding:.8rem;border-radius:8px;background:#fff0ed;color:#943b2b;font-weight:700;line-height:1.5}.problem-result-shell{position:sticky;top:1rem}.problem-placeholder{padding:1rem;border-radius:10px;background:#f5f7f3;color:#657168;line-height:1.6}.problem-result-title{margin:0 0 .45rem}.problem-result-kicker{margin:0 0 1rem;color:#3b6849;font-weight:760}.problem-deadline{display:block;padding:1rem;border:1px solid #cfe0c9;border-radius:10px;background:#f1f7ee;font-size:1.08rem;line-height:1.55;font-variant-numeric:tabular-nums}.problem-result-section{margin-top:1rem;padding-top:.9rem;border-top:1px solid #e1e7df}.problem-result-section h3{margin:0 0 .6rem;font-size:1.02rem}.problem-result-section ul{display:grid;gap:.5rem;margin:0;padding:0;list-style:none}.problem-result-section li{padding:.75rem .85rem;border:1px solid #e0e7de;border-radius:8px;background:#fbfcfa;line-height:1.55;overflow-wrap:anywhere;font-variant-numeric:tabular-nums}.problem-boundary{margin-top:1rem;padding:.85rem;border-radius:8px;background:#fff5df;color:#6f521c;line-height:1.58}.problem-sources{padding-bottom:3rem}.problem-source-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:.7rem}.problem-source-grid a{display:flex;min-width:0;flex-direction:column;gap:.25rem;padding:1rem;border:1px solid #dce5d9;border-radius:12px;background:#fff;color:inherit;text-decoration:none;overflow-wrap:anywhere}.problem-source-grid span{color:#69756c;font-size:.85rem}.problem-related{display:flex;flex-wrap:wrap;gap:.6rem;margin-top:1.2rem}.problem-related a{padding:.65rem .8rem;border:1px solid #ced9cc;border-radius:8px;background:#fff;color:#245839;text-decoration:none;font-weight:700}@media(max-width:900px){.problem-layout{grid-template-columns:1fr}.problem-result-shell{position:static}.problem-source-grid{grid-template-columns:1fr}}@media(max-width:620px){.problem-intro,.problem-grid,.problem-check-grid{grid-template-columns:1fr}.problem-actions{flex-direction:column}.problem-actions button{width:100%}.problem-panel{padding:1rem}}@media print{.global-header,.site-breadcrumb,.problem-hero,.problem-intro,.problem-form,.problem-screen-only,.problem-sources,.global-footer{display:none!important}.problem-layout{display:block;padding:0}.problem-result-shell{position:static;border:0;box-shadow:none}.problem-result-section li{break-inside:avoid}}
body.problem-page .problem-hero h1{color:#fff!important}.problem-hero .eyebrow{color:#b9d77c}