.feature-bar{display:flex;align-items:center;gap:8px;padding:0 34px 10px;max-width:1048px;width:100%;margin:0 auto}.feature-select,.feature-btn{height:34px;border:1px solid #263143;background:#0e151f;color:#cbd5e1;border-radius:9px;padding:0 10px;font-size:11px;cursor:pointer}.feature-btn:hover,.feature-select:hover{border-color:#4a5870;background:#141c28;color:#fff}.feature-spacer{flex:1}.feature-chip{font-size:10px;color:#7f8da2}.feature-overlay{position:fixed;inset:0;background:rgba(3,6,10,.72);backdrop-filter:blur(12px);z-index:9998;display:none;align-items:center;justify-content:center;padding:20px}.feature-overlay.open{display:flex}.feature-panel{width:min(720px,94vw);max-height:82vh;overflow:auto;background:#101722;border:1px solid #293548;border-radius:22px;padding:22px;box-shadow:0 30px 90px rgba(0,0,0,.55)}.feature-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}.feature-head h3{margin:0;font-size:20px;color:#fff}.feature-close{width:32px;height:32px;border:1px solid #293548;background:#141b26;color:#aeb9c9;border-radius:9px;cursor:pointer;font-size:18px}.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.feature-card{border:1px solid #263143;background:#0e151f;border-radius:14px;padding:15px;text-align:left;color:#dce4ef;cursor:pointer}.feature-card:hover{border-color:#4a4c79;background:#131c29}.feature-card b{display:block;font-size:12px}.feature-card span{display:block;color:#77869a;font-size:10px;line-height:1.5;margin-top:5px}.prompt-list{display:grid;gap:8px}.prompt-item{display:flex;align-items:center;justify-content:space-between;gap:12px;border:1px solid #232e3e;background:#0d141d;border-radius:12px;padding:12px}.prompt-item b{display:block;font-size:12px}.prompt-item span{display:block;color:#748196;font-size:10px;margin-top:3px}.prompt-use{border:1px solid #343f52;background:#151e2b;color:#c4b5fd;border-radius:8px;padding:7px 9px;font-size:10px;cursor:pointer}.history-search{width:100%;height:38px;border:1px solid #293548;background:#0b1119;color:#e5e7eb;border-radius:10px;padding:0 12px;outline:none;margin-bottom:10px}.usage-meter{height:8px;border-radius:99px;background:#202a38;overflow:hidden;margin:10px 0}.usage-fill{height:100%;width:18%;background:#8b7cff;border-radius:99px}.usage-note{font-size:11px;color:#7e8ba0}.file-name{display:inline-flex;max-width:230px;padding:5px 8px;border:1px solid #2b3748;background:#101824;border-radius:8px;color:#aeb9c9;font-size:10px;margin-top:7px}@media(max-width:820px){.feature-bar{padding:0 14px 8px;overflow:auto}.feature-grid{grid-template-columns:1fr 1fr}.feature-panel{padding:17px}.feature-chip{display:none}}