:root{--ps-teal:#337778;--ps-teal-dark:#28595a;--ps-teal-light:#e7f1f1;--ps-gold:#f2b620;--ps-bg:#f4f7f7;--ps-text:#1f2d2d;--ps-muted:#6b7f7f;--ps-border:#d8e3e3;--ps-red:#c0392b;--ps-green:#1e8e3e;--radius:12px}*{box-sizing:border-box}html,body{background:var(--ps-bg);height:100%;color:var(--ps-text);margin:0;padding:0;font-family:Segoe UI,PingFang SC,Microsoft YaHei,system-ui,sans-serif}.app{flex-direction:column;max-width:860px;height:100dvh;margin:0 auto;display:flex}.header{background:var(--ps-teal);color:#fff;justify-content:space-between;align-items:center;padding:12px 18px;display:flex;box-shadow:0 2px 8px #0000001f}.brand{align-items:baseline;gap:8px;display:flex}.brand .logo{letter-spacing:-.5px;font-size:20px;font-weight:800}.brand .logo em{color:var(--ps-gold);font-style:normal}.brand .tag{opacity:.85;font-size:12px}.cartBtn{background:var(--ps-teal-dark);color:#fff;cursor:pointer;border:none;border-radius:20px;padding:8px 16px;font-size:14px;position:relative}.cartBtn .badge{background:var(--ps-gold);color:#173434;border-radius:10px;justify-content:center;align-items:center;min-width:20px;height:20px;padding:0 5px;font-size:12px;font-weight:700;display:flex;position:absolute;top:-6px;right:-6px}.feed{flex-direction:column;flex:1;gap:10px;padding:18px 16px 8px;display:flex;overflow-y:auto}.row{display:flex}.row.user{justify-content:flex-end}.bubble{border-radius:var(--radius);white-space:pre-wrap;word-break:break-word;max-width:78%;padding:10px 14px;font-size:14.5px;line-height:1.65}.bubble.bot{border:1px solid var(--ps-border);background:#fff;border-top-left-radius:4px}.bubble.user{background:var(--ps-teal);color:#fff;border-top-right-radius:4px}.bubble a{color:var(--ps-teal)}.bubble.user a{color:#fff}.widget{max-width:92%}.btnRow{flex-wrap:wrap;gap:8px;display:flex}.chip{border:1.5px solid var(--ps-teal);color:var(--ps-teal);cursor:pointer;background:#fff;border-radius:20px;padding:8px 16px;font-size:14px;transition:all .15s}.chip:hover:not(:disabled){background:var(--ps-teal);color:#fff}.chip.gold{border-color:var(--ps-gold);color:#8a6400}.chip.gold:hover:not(:disabled){background:var(--ps-gold);color:#173434}.chip.ghost{border-color:var(--ps-muted);color:var(--ps-muted)}.chip:disabled{opacity:.45;cursor:default}.applianceGrid{flex-wrap:wrap;gap:10px;display:flex}.applianceCard{border:1.5px solid var(--ps-border);border-radius:var(--radius);cursor:pointer;text-align:center;background:#fff;width:168px;padding:14px;transition:all .15s}.applianceCard:hover{border-color:var(--ps-teal);box-shadow:0 4px 12px #3377782e}.applianceCard .icon{font-size:38px}.applianceCard .model{margin-top:6px;font-size:14px;font-weight:700}.applianceCard .name{color:var(--ps-muted);margin-top:2px;font-size:12px}.applianceCard .src{background:var(--ps-teal-light);color:var(--ps-teal-dark);border-radius:8px;margin-top:6px;padding:2px 8px;font-size:11px;display:inline-block}.partGrid{flex-direction:column;gap:10px;display:flex}.partCard{border:1.5px solid var(--ps-border);border-radius:var(--radius);background:#fff;align-items:flex-start;gap:14px;padding:14px 16px;display:flex}.partCard.oos{opacity:.75;background:#fafafa}.partCard .picon{font-size:34px;line-height:1}.partCard .pbody{flex:1;min-width:0}.partCard .pname{font-size:15px;font-weight:700}.partCard .pno{color:var(--ps-muted);margin-top:2px;font-size:12px}.partCard .pno a{color:var(--ps-teal)}.badges{flex-wrap:wrap;gap:6px;margin-top:8px;display:flex}.badge2{border-radius:8px;padding:3px 9px;font-size:12px;font-weight:600}.badge2.stock{color:var(--ps-green);background:#e6f4ea}.badge2.low{color:#9a6700;background:#fdf3dc}.badge2.out{color:#777;background:#f1f1f1}.badge2.fit{color:var(--ps-green);background:#e6f4ea}.badge2.nofit{color:var(--ps-red);background:#fdecea}.partCard .pside{text-align:right;flex-direction:column;align-items:flex-end;gap:8px;display:flex}.partCard .price{color:var(--ps-teal-dark);font-size:20px;font-weight:800}.addBtn{background:var(--ps-gold);color:#173434;cursor:pointer;border:none;border-radius:8px;padding:9px 14px;font-size:13.5px;font-weight:700}.addBtn:hover:not(:disabled){filter:brightness(1.06)}.addBtn:disabled{color:#999;cursor:default;background:#ddd}.installCard{border:1.5px solid var(--ps-border);border-radius:var(--radius);background:#fff;padding:16px}.installCard h4{margin:0 0 8px;font-size:15px}.metaRow{color:var(--ps-muted);flex-wrap:wrap;gap:14px;margin-bottom:10px;font-size:13px;display:flex}.installCard ol{margin:8px 0;padding-left:22px;font-size:14px;line-height:1.7}.linkRow{gap:14px;margin-top:8px;font-size:13.5px;display:flex}.linkRow a{color:var(--ps-teal);font-weight:600}.cartBox{border:1.5px solid var(--ps-border);border-radius:var(--radius);background:#fff;padding:14px 16px}.cartBox h4{margin:0 0 10px;font-size:14.5px}.cartLine{border-bottom:1px dashed var(--ps-border);justify-content:space-between;gap:10px;padding:5px 0;font-size:13.5px;display:flex}.cartLine .rm{color:var(--ps-red);cursor:pointer;background:0 0;border:none;font-size:12px}.cartTotal{justify-content:space-between;margin-top:10px;font-size:15px;font-weight:800;display:flex}.checkoutBtn{background:var(--ps-teal);color:#fff;cursor:pointer;border:none;border-radius:8px;width:100%;margin-top:12px;padding:11px;font-size:14.5px;font-weight:700}.checkoutBtn:hover{background:var(--ps-teal-dark)}.formBox{border:1.5px solid var(--ps-border);border-radius:var(--radius);background:#fff;flex-direction:column;gap:10px;padding:16px;display:flex}.formBox label{color:var(--ps-muted);margin-bottom:3px;font-size:12.5px;display:block}.formBox input{border:1.5px solid var(--ps-border);border-radius:8px;outline:none;width:100%;padding:9px 11px;font-size:14px}.formBox input:focus{border-color:var(--ps-teal)}.formRow2{grid-template-columns:1fr 1fr 1fr;gap:10px;display:grid}.demoNote{color:#9a6700;background:#fdf3dc;border-radius:8px;padding:8px 10px;font-size:12px}.confirmBox{border-radius:var(--radius);text-align:center;background:linear-gradient(135deg,#e6f4ea,#f0faf3);border:1.5px solid #b5dec2;padding:18px}.confirmBox .big{font-size:34px}.confirmBox h3{margin:6px 0 4px}.confirmBox p{color:#2d5b3c;margin:2px 0;font-size:13.5px}.composer{background:var(--ps-bg);gap:10px;padding:12px 16px 16px;display:flex}.composer input{border:1.5px solid var(--ps-border);background:#fff;border-radius:24px;outline:none;flex:1;padding:12px 18px;font-size:14.5px}.composer input:focus{border-color:var(--ps-teal)}.composer button{background:var(--ps-teal);color:#fff;cursor:pointer;border:none;border-radius:24px;padding:0 22px;font-size:14.5px;font-weight:700}.composer button:disabled{opacity:.5;cursor:default}.typing{gap:4px;padding:4px 2px;display:inline-flex}.typing span{background:var(--ps-teal);border-radius:50%;width:7px;height:7px;animation:1.2s infinite both blink}.typing span:nth-child(2){animation-delay:.2s}.typing span:nth-child(3){animation-delay:.4s}@keyframes blink{0%,80%,to{opacity:.25}40%{opacity:1}}.drawerMask{z-index:40;background:#00000059;position:fixed;inset:0}.drawer{z-index:50;background:#fff;width:340px;max-width:90vw;padding:18px;position:fixed;top:0;bottom:0;right:0;overflow-y:auto;box-shadow:-4px 0 20px #00000026}.drawer h3{color:var(--ps-teal-dark);margin:0 0 12px}@media (max-width:600px){.bubble{max-width:88%}.formRow2{grid-template-columns:1fr}}