*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--g: #1d8c3a;--gm: #27a648;--gl: #e6f4eb;--gxl: #f3faf5;--gb: #b5d9c1;--w: #fff;--g50: #f6f7f6;--g100: #edeeed;--g200: #dcdedd;--g400: #9aa89a;--g600: #5c695c;--g900: #1b201b;--text: #2b382b;--soft: #5f6e5f;--r: 8px;--accent: #0f6cbf;--accent-l:#e8f2fc}html{font-size:14px}body{background:var(--g50);color:var(--text);font-family:DM Sans,sans-serif;-webkit-font-smoothing:antialiased}.page{max-width:1400px;margin:0 auto;padding:28px 28px 64px}nav{position:sticky;top:0;z-index:100;background:var(--w);border-bottom:1px solid var(--g200);display:flex;align-items:stretch;padding:0 28px;height:54px;overflow:visible}.logo{display:flex;align-items:center;gap:9px;font-weight:600;font-size:15px;color:var(--g);margin-right:32px;flex-shrink:0;text-decoration:none}.logo-box{width:28px;height:28px;background:var(--g);border-radius:7px;display:flex;align-items:center;justify-content:center}.logo-box svg{width:15px;height:15px}.tabs{display:flex;overflow-x:visible;overflow-y:visible}.tab{display:flex;align-items:center;padding:0 14px;font-size:13px;font-weight:500;color:var(--soft);cursor:pointer;border:none;border-bottom:2px solid transparent;border-top:2px solid transparent;background:none;font-family:inherit;transition:color .15s,border-color .15s;white-space:nowrap}.tab:hover{color:var(--text)}.tab.active{color:var(--g);border-bottom-color:var(--g)}.nav-group{position:relative;display:flex;align-items:stretch}.nav-group-btn{display:flex;align-items:center;gap:5px;padding:0 14px;font-size:13px;font-weight:500;color:var(--soft);cursor:pointer;border:none;border-bottom:2px solid transparent;border-top:2px solid transparent;background:none;font-family:inherit;transition:color .15s,border-color .15s;white-space:nowrap}.nav-group-btn:hover{color:var(--text)}.nav-group-btn.group-active{color:var(--g);border-bottom-color:var(--g)}.nav-dropdown{display:none;position:absolute;top:calc(100% + 1px);left:0;background:var(--w);border:1px solid var(--g200);border-radius:8px;box-shadow:0 4px 20px #00000026;min-width:180px;z-index:9999;padding:4px 0}.nav-group.open .nav-dropdown{display:block}.nav-dropdown-item{display:block;width:100%;text-align:left;padding:9px 16px;font-size:13px;font-weight:500;color:var(--text);background:none;border:none;font-family:inherit;cursor:pointer;white-space:nowrap}.nav-dropdown-item:hover{background:var(--gl);color:var(--g)}.nav-dropdown-item.active{color:var(--g);font-weight:600}.card{background:var(--w);border:1px solid var(--g200);border-radius:var(--r);box-shadow:0 1px 3px #0000000f;overflow:hidden;margin-bottom:20px}.card-head{padding:14px 20px;border-bottom:1px solid var(--g100);display:flex;align-items:center;gap:10px}.card-head h2{font-size:14px;font-weight:600;color:var(--g900)}.card-head .subtitle{font-size:12px;color:var(--soft);margin-left:auto}.card-body{padding:18px 20px}.btn{padding:7px 16px;border-radius:6px;font-size:13px;font-weight:500;cursor:pointer;border:none;font-family:inherit;transition:background .15s}.btn-green{background:var(--g);color:#fff}.btn-green:hover{background:var(--gm)}.btn-outline{background:var(--w);color:var(--g);border:1px solid var(--gb)}.btn-outline:hover{background:var(--gl)}.btn-sm{padding:4px 12px;font-size:12px;border-radius:4px;cursor:pointer;border:1px solid var(--g200);background:var(--w);color:var(--g600);font-family:inherit;transition:background .15s}.btn-sm:hover{background:var(--gl);color:var(--g);border-color:var(--gb)}button:disabled{opacity:.5;cursor:not-allowed}select,input[type=text],input[type=number],textarea{padding:7px 10px;border:1px solid var(--g200);border-radius:6px;font-family:DM Sans,sans-serif;font-size:13px;color:var(--text);background:var(--g50);outline:none;transition:border-color .2s,box-shadow .2s}select:focus,input:focus,textarea:focus{border-color:var(--g);box-shadow:0 0 0 3px #1d8c3a1a;background:var(--w)}.pill{display:inline-flex;align-items:center;gap:4px;padding:3px 9px;border-radius:20px;font-size:12px;font-family:DM Mono,monospace;background:var(--g50);border:1px solid var(--g200);color:var(--text)}.pill .pcode{font-weight:500;color:var(--g)}.pill .pdesc{color:var(--soft)}.pill-grid{display:flex;flex-wrap:wrap;gap:5px;padding:4px 0}.pf-btn{padding:7px 14px;border-radius:20px;font-size:13px;font-weight:500;cursor:pointer;border:1px solid var(--g200);background:var(--g50);color:var(--text);font-family:inherit;transition:all .15s}.pf-btn:hover{background:var(--gl);border-color:var(--gb);color:var(--g)}.pf-btn.active{background:var(--g);border-color:var(--g);color:#fff}.product-family-grid{display:flex;flex-wrap:wrap;gap:8px}.attr-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:10px}.attr-block{background:var(--g50);border:1px solid var(--g200);border-radius:6px;padding:10px 12px}.attr-name{font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.07em;color:var(--g600);margin-bottom:6px}.result-box{background:var(--gxl);border:1px solid var(--gb);border-radius:6px;padding:12px 16px;font-family:DM Mono,monospace;font-size:13px;color:var(--g900);line-height:1.9;min-height:48px}.result-label{font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.07em;color:var(--g);margin-bottom:6px}.step-wrap{padding:16px 20px;border-bottom:1px solid var(--g100)}.step-label{font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.07em;color:var(--g600);margin-bottom:8px}.token-row{display:flex;align-items:center;gap:8px;flex-wrap:wrap}.token{display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:6px;font-size:13px;font-weight:500;transition:opacity .2s}.token-brand{background:var(--gl);border:1px solid var(--gb);color:var(--g)}.token-fixed{background:var(--g50);border:1px solid var(--g200);color:var(--g600)}.token-dim{background:#fff8e1;border:1px solid #f0d080;color:#7a6010}.token-opt{background:#f0f4ff;border:1px solid #c5d0f0;color:#3a4aaa}.token-end{background:#fdf0f8;border:1px solid #e8c0dc;color:#8a2060}.token-sep{color:var(--g400);font-weight:300;font-size:16px}.match-score{display:inline-flex;align-items:center;gap:4px;padding:2px 8px;border-radius:12px;font-size:11px;font-weight:600}.score-exact{background:#e6f4eb;color:#1d8c3a;border:1px solid #b5d9c1}.score-close{background:#fff8e1;color:#7a6010;border:1px solid #f0d080}.score-loose{background:#fdf0f8;color:#8a2060;border:1px solid #e8c0dc}.match-table{width:100%;border-collapse:collapse;font-size:12px;margin-top:8px}.match-table th{padding:7px 12px;text-align:left;font-size:11px;text-transform:uppercase;letter-spacing:.06em;color:var(--g600);font-weight:600;background:var(--g50);border-bottom:2px solid var(--g200)}.match-table td{padding:8px 12px;border-bottom:1px solid var(--g100);vertical-align:middle}.match-table tr:last-child td{border-bottom:none}.match-table tr:hover td{background:var(--gxl)}.pid-code{font-family:DM Mono,monospace;font-size:12px;color:var(--g);font-weight:500}.dim-exact{color:var(--g);font-weight:600}.dim-off{color:#b45309}.dim-delta{font-size:10px;color:var(--soft);margin-left:3px}.chat-messages{flex:1;overflow-y:auto;padding:16px 20px;display:flex;flex-direction:column;gap:12px;min-height:400px}.chat-msg{display:flex;flex-direction:column;max-width:85%}.chat-msg-ai{align-self:flex-start}.chat-msg-user{align-self:flex-end}.chat-bubble{padding:11px 15px;border-radius:12px;font-size:13px;line-height:1.65;word-break:break-word}.chat-bubble-ai{background:var(--g50);border:1px solid var(--g200);border-bottom-left-radius:3px;color:var(--text)}.chat-bubble-user{background:var(--g);color:#fff;border-bottom-right-radius:3px}.chat-bubble ul{margin:6px 0 2px 16px}.chat-bubble li{margin-bottom:2px}.chat-bubble strong{font-weight:600}.chat-bubble p{margin-bottom:6px}.chat-bubble p:last-child{margin-bottom:0}.chat-input-row{padding:12px 20px;border-top:1px solid var(--g100);display:flex;gap:8px;align-items:flex-end}.chat-input-row textarea{flex:1;resize:none;padding:9px 12px;border-radius:8px;font-size:13px;line-height:1.5;max-height:140px;overflow-y:auto}.chat-thinking{display:flex;align-items:center;gap:6px;font-size:12px;color:var(--soft);font-style:italic;padding:6px 0}.chat-dot{width:6px;height:6px;background:var(--gb);border-radius:50%;animation:chatbounce .9s infinite}.chat-dot:nth-child(2){animation-delay:.15s}.chat-dot:nth-child(3){animation-delay:.3s}@keyframes chatbounce{0%,60%,to{transform:translateY(0)}30%{transform:translateY(-5px)}}.chat-brand-bar{font-size:11px;color:var(--soft);font-style:italic;padding:4px 8px;background:var(--g50);border-radius:4px;margin-bottom:2px;line-height:1.7}.chat-products{margin-top:10px;display:flex;flex-direction:column;gap:6px}.chat-product-card{background:var(--w);border:1px solid var(--g200);border-radius:8px;padding:10px 14px;font-size:12px}.chat-product-card .cpid{font-family:DM Mono,monospace;font-weight:600;color:var(--g);font-size:13px}.chat-product-card .cdesc{color:var(--soft);margin:2px 0 6px}.chat-product-card .cstats{display:flex;flex-wrap:wrap;gap:6px}.chat-stat{background:var(--g50);border:1px solid var(--g100);border-radius:4px;padding:2px 8px;font-size:11px;color:var(--text)}.chat-stat span{font-weight:600;color:var(--g900)}.ds-btn{display:inline-flex;align-items:center;gap:5px;margin-top:7px;padding:4px 10px;font-size:11px;font-weight:500;color:var(--g);background:var(--gl);border:1px solid var(--g200);border-radius:5px;cursor:pointer;transition:background .15s;font-family:inherit}.ds-btn:hover{background:var(--g100)}.ds-btn svg{flex-shrink:0}.app-loading{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:60vh;gap:16px;color:var(--soft)}.app-loading .spinner{width:32px;height:32px;border:3px solid var(--gb);border-top-color:var(--g);border-radius:50%;animation:spin .7s linear infinite}.app-error{margin:40px auto;max-width:480px;background:#fff5f5;border:1px solid #fca5a5;border-radius:8px;padding:20px 24px;color:#991b1b;font-size:13px}.search-spinner{display:inline-block;width:14px;height:14px;border:2px solid var(--gb);border-top-color:var(--g);border-radius:50%;animation:spin .7s linear infinite;vertical-align:middle;margin-right:6px}@keyframes spin{to{transform:rotate(360deg)}}.toast{position:fixed;bottom:24px;right:24px;background:var(--g900);color:#fff;padding:10px 18px;border-radius:8px;font-size:13px;font-weight:500;opacity:0;transform:translateY(8px);transition:opacity .25s,transform .25s;pointer-events:none;z-index:9999}.toast.show{opacity:1;transform:translateY(0)}.footer{margin-top:12px;font-size:11.5px;color:var(--g400);text-align:right}::-webkit-scrollbar{width:5px;height:5px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--g200);border-radius:3px}::-webkit-scrollbar-thumb:hover{background:var(--gb)}.rule-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(340px,1fr));gap:14px}.rule-card{background:var(--g50);border:1px solid var(--g200);border-radius:6px;padding:14px 16px}.rule-family{font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.07em;color:var(--g);margin-bottom:8px}.rule-formula{font-family:DM Mono,monospace;font-size:12px;background:var(--gxl);border:1px solid var(--gb);border-radius:4px;padding:8px 10px;color:var(--g900);line-height:1.6;margin-bottom:8px;word-break:break-word}.rule-note{font-size:11px;color:var(--gm);margin-top:6px;font-style:italic}