.tire-research-tabs { display:flex; gap:8px; padding:5px; border:1px solid #dbe5df; border-radius:12px; background:#f5f8f6; }
.tire-research-tabs button { flex:1; min-height:42px; border:0; border-radius:9px; background:transparent; color:#526158; font-weight:900; cursor:pointer; }
.tire-research-tabs button.active { background:#244d2c; color:#fff; box-shadow:0 5px 16px rgba(36,77,44,.2); }
.tire-research-tab-panel { display:none; gap:18px; }
.tire-research-tab-panel.active { display:grid; }
.chamber-search-form { display:grid; grid-template-columns:minmax(190px,.8fr) minmax(240px,1.4fr) auto; gap:12px; align-items:end; }
.chamber-search-form label { display:grid; gap:6px; color:#536159; font-size:12px; font-weight:800; }
.chamber-search-form select { width:100%; min-height:42px; border:1px solid #cfdad3; border-radius:9px; background:#fff; padding:8px 10px; color:#1f2f27; }
.chamber-search-form button { min-height:42px; white-space:nowrap; }
.chamber-search-results { display:grid; grid-template-columns:repeat(auto-fit,minmax(280px,1fr)); gap:14px; }
.chamber-result-card { border:1px solid #d9e5d7; border-left:5px solid #70a92f; border-radius:13px; padding:17px; background:#fff; box-shadow:0 8px 24px rgba(38,58,47,.06); }
.chamber-result-card.is-review { border-left-color:#e0613d; background:#fffaf7; }
.chamber-result-card header { display:flex; justify-content:space-between; gap:12px; align-items:flex-start; }
.chamber-result-card h4 { margin:0; color:#1f4620; font-size:22px; line-height:1.15; }
.chamber-result-card .chamber-valve { border-radius:99px; padding:5px 9px; background:#eaf4e4; color:#315d25; font-size:12px; font-weight:900; white-space:nowrap; }
.chamber-result-card dl { display:grid; grid-template-columns:auto 1fr; gap:7px 11px; margin:15px 0 0; font-size:12px; }
.chamber-result-card dt { color:#758077; }
.chamber-result-card dd { margin:0; color:#35433b; font-weight:800; }
.chamber-review-alert { margin-top:13px; padding:10px; border-radius:8px; background:#fff0ea; color:#9c3c25; font-size:12px; font-weight:800; line-height:1.4; }
.chamber-applications { margin-top:12px; padding:12px 14px; border-radius:10px; background:#eff6ff; border:1px solid #bfdbfe; color:#1e3a5f; line-height:1.45; }
.chamber-result-main { display:grid; grid-template-columns:minmax(260px,1fr) auto; gap:18px; align-items:center; }
.valve-photo { margin:14px 0 0; display:grid; justify-items:center; gap:5px; }
.valve-photo-frame { position:relative; overflow:hidden; border:1px solid #d7e3da; border-radius:10px; background:#fff; box-shadow:0 5px 16px rgba(38,58,47,.08); }
.valve-photo-frame img { position:absolute; max-width:none; object-fit:none; }
.valve-photo figcaption { color:#68756d; font-size:11px; font-weight:800; }
.chamber-safety-note { border-color:#cddfbd; background:#f5faef; color:#405c32; }
@media (max-width:720px) { .tire-research-tabs { flex-direction:column; } .chamber-search-form { grid-template-columns:1fr; } .chamber-result-main { grid-template-columns:1fr; } .valve-photo { justify-items:start; } }