:root{--color-white:#ffffff;--color-black:#000000;--color-gray-50:#f9fafb;--color-gray-100:#f3f4f6;--color-gray-200:#e5e7eb;--color-gray-300:#d1d5db;--color-gray-400:#9ca3af;--color-gray-500:#6b7280;--color-gray-600:#4b5563;--color-gray-700:#374151;--color-gray-800:#1f2937;--color-blue-200:#bfdbfe;--color-blue-600:#2563eb;--color-blue-800:#1e40af;--color-blue-700:#1d4ed8;--color-red-200:#fde7e7;--color-red-800:#f16363;--spacing-1:0.25rem;--spacing-2:0.5rem;--spacing-3:0.75rem;--spacing-4:1rem;--spacing-6:1.5rem;--spacing-8:2rem;--spacing-10:2.5rem}body{font-family:-apple-system,blinkmacsystemfont,'Helvetica Neue',helvetica,segoe ui,arial,roboto,'PingFang SC','miui','Hiragino Sans GB','Microsoft Yahei',sans-serif;background-color:var(--color-white);display:flex;height:100vh;overflow:hidden;color:var(--color-gray-800);margin:0;padding:0}ul{list-style:none;padding:0;margin:0}button{border:none;background:none;cursor:pointer}a{text-decoration:none;color:inherit}button svg{pointer-events:none}.w-full{width:100%}.e-none{pointer-events:none}.transition-all{transition:all 0.2s ease}.transition-colors{transition:background-color 0.2s,border-color 0.2s,color 0.2s}.rounded-lg{border-radius:0.5rem}.rounded-xl{border-radius:0.75rem}.rounded-2xl{border-radius:1rem}.rounded-full{border-radius:9999px}.shadow-sm{box-shadow:0 1px 2px 0 rgba(0,0,0,0.05)}.shadow-md{box-shadow:0 4px 6px -1px rgba(0,0,0,0.1),0 2px 4px -2px rgba(0,0,0,0.1)}.flex{display:flex}.flex-wrap{flex-wrap:wrap}.flex-col{flex-direction:column}.flex-1{flex:1 1 0%}.flex-shrink-0{flex-shrink:0}.items-center{align-items:center}.items-start{align-items:flex-start}.justify-between{justify-content:space-between}.justify-center{justify-content:center}.justify-start{justify-content:flex-start}.text-left{text-align:left}.text-center{text-align:center}.text-xs{font-size:0.75rem;line-height:1rem}.text-sm{font-size:0.875rem;line-height:1.25rem}.text-lg{font-size:1.125rem;line-height:1.75rem}.text-2xl{font-size:1.5rem;line-height:2rem}.font-medium{font-weight:500}.font-semibold{font-weight:600}.font-bold{font-weight:700}.truncate{overflow:hidden;white-space:nowrap;text-overflow:ellipsis}.overflow-y-auto{overflow-y:auto}.custom-scrollbar::-webkit-scrollbar{width:6px}.custom-scrollbar::-webkit-scrollbar-track{background:transparent}.custom-scrollbar::-webkit-scrollbar-thumb{background-color:var(--color-gray-200);border-radius:20px}.custom-scrollbar:hover::-webkit-scrollbar-thumb{background-color:var(--color-gray-300)}.fade-in{animation:fadeIn 0.5s ease-out}@keyframes fadeIn{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}#sidebar{width:260px;flex-shrink:0;height:100%;display:flex;flex-direction:column;border-right:1px solid #e8e8e8;transition:width 0.3s ease,transform 0.3s ease,opacity 0.3s ease;position:fixed;z-index:30;background-color:#fff;transform:translateX(-100%)}.sidebar-header{padding:var(--spacing-4);height:1.5rem;display:flex;align-items:center;justify-content:space-between}.sidebar-header > div{display:flex;align-items:center;gap:var(--spacing-2)}.sidebar-header svg{width:1.5rem;height:1.5rem;color:var(--color-blue-600)}.sidebar-header .text-lg{font-size:1.125rem;line-height:1.75rem;color:var(--color-gray-800)}#sidebar-toggle-btn{width:40px;height:40px;color:var(--color-gray-500);border-radius:var(--spacing-2);transition:background-color 0.2s,color 0.2s}#sidebar-toggle-btn:hover{background-color:var(--color-gray-200)}.history-delete:hover{color:red}#new-search-wrapper{padding:var(--spacing-4);padding-top:1.5rem}.sidebar-new-search-btn{width:100%;display:flex;align-items:center;justify-content:flex-start;padding:var(--spacing-3);background-color:var(--color-white);border:1px solid var(--color-gray-200);border-radius:var(--spacing-2);transition:all 0.2s;box-shadow:0 1px 2px 0 rgba(0,0,0,0.05)}.sidebar-new-search-btn:hover{background-color:var(--color-gray-100)}.sidebar-new-search-btn div:first-child{display:flex;align-items:center;gap:var(--spacing-3)}.sidebar-new-search-btn div:first-child div{padding:var(--spacing-1);background-color:var(--color-black);border-radius:50%;color:var(--color-white);flex-shrink:0}.sidebar-new-search-btn div:last-child{margin-left:auto}.sidebar-new-search-btn span{font-weight:500;color:var(--color-gray-700)}.sidebar-new-search-btn svg.ml-auto{color:var(--color-gray-400)}.sidebar-new-search-btn:hover svg.ml-auto{color:var(--color-gray-600)}.sidebar-nav-text{transition:opacity 0.3s,width 0.3s}.px-3{padding-left:0.75rem;padding-right:0.75rem}.py-2{padding-top:0.325rem;padding-bottom:0.625rem}.py-4{padding-top:1rem;padding-bottom:1rem}.pt-4{padding-top:1rem}.pb-2{padding-bottom:0.5rem}.border-b{border-bottom:1px solid var(--color-gray-100)}.space-y-1 > * + *{margin-top:0.25rem}.mb-6{margin-bottom:1.5rem}.mb-2{margin-bottom:0.5rem}.text-gray-400{color:var(--color-gray-400)}.text-gray-700{color:var(--color-gray-700)}.text-gray-500{color:var(--color-gray-500)}.font-semibold{font-weight:600}.text-xs{font-size:0.75rem}.sidebar-nav-link{display:flex;align-items:center;gap:var(--spacing-3);padding:0.625rem 0.75rem;font-size:0.9rem;border-radius:var(--spacing-2);transition:background-color 0.2s,color 0.2s;line-height:1.25rem;color:#333;font-weight:550}.sidebar-nav-link.bg-blue-600{background-color:var(--color-blue-600);color:var(--color-white);font-weight:500;box-shadow:0 4px 6px -1px rgba(0,0,0,0.1),0 2px 4px -2px rgba(0,0,0,0.1)}.sidebar-nav-link:not(.bg-blue-600):hover{background-color:rgba(229,231,235,0.6)}.sidebar-nav-link svg:not(.bg-blue-600){color:var(--color-gray-500)}.sidebar-nav-link svg{width:1.25rem;height:1.25rem;flex-shrink:0}.border-t{border-top:1px solid var(--color-gray-100)}.sidebar-user-btn{padding:0.5rem;width:100%;height:3rem;display:flex;align-items:center;gap:var(--spacing-3);border-radius:var(--spacing-2);color:#000}.sidebar-user-btn:hover{background-color:rgba(229,231,235,0.6)}.sidebar-user-btn p{line-height:1.25rem}.sidebar-user-btn svg{width:1rem;height:1rem;color:var(--color-gray-400);flex-shrink:0}#history-section{padding:0 0.75rem;overflow-y:auto;flex:1 1 0%}@media (min-width:1024px){#history-section li:hover{border-radius:var(--spacing-2);background-color:rgba(229,231,235,0.6)}#sidebar{transform:translateX(0);position:relative}.lg\:hidden{display:none !important}.lg\:translate-x-0{transform:translateX(0)}body.sidebar-collapsed #sidebar{width:64px}body.sidebar-collapsed #sidebar-toggle-btn{}body.sidebar-collapsed .sidebar-nav-text,body.sidebar-collapsed .sidebar-header .sidebar-nav-text{opacity:0;width:0;pointer-events:none;overflow:hidden;transition:opacity 0.1s,width 0.3s}body.sidebar-collapsed .sidebar-nav-link{justify-content:center;padding-left:1.5rem}body.sidebar-collapsed #new-search-wrapper .sidebar-new-search-btn{justify-content:center;padding:0.75rem 0.5rem}body.sidebar-collapsed #history-section{height:0;opacity:0;padding-top:0 !important;padding-bottom:0 !important;margin-top:0 !important;margin-bottom:0 !important;overflow:hidden;pointer-events:none}body.sidebar-collapsed .sidebar-header{border-bottom:none}}#mobile-overlay{position:fixed;inset:0;background-color:rgba(0,0,0,0.5);z-index:20;transition:opacity 0.3s ease;opacity:0;display:none}@media (max-width:1023px){#sidebar{width:100%;max-width:500px}.-translate-x-full{transform:translateX(0) !important}#mobile-overlay.hidden{display:none}#mobile-overlay:not(.hidden){display:block}}.main-content{flex:1 1 0%;display:flex;flex-direction:column;height:100vh;position:relative;background-color:var(--color-white)}header{height:3.5rem;display:flex;align-items:center;justify-content:space-between;padding-left:var(--spacing-4);padding-right:var(--spacing-4);position:sticky;top:0;z-index:10;background-color:rgba(255,255,255,0.8);backdrop-filter:blur(5px);box-sizing:border-box}header .flex{display:flex;align-items:center}header .gap-3{gap:var(--spacing-3)}header .gap-2{gap:var(--spacing-2)}header button{transition:background-color 0.2s,color 0.2s}header button.lg-hidden{padding:var(--spacing-2);margin-left:-0.5rem;color:var(--color-gray-500);border-radius:var(--spacing-2)}header button.lg-hidden:hover{background-color:var(--color-gray-100)}header button.lg-hidden svg{width:1.25rem;height:1.25rem}header button.model-selector{padding:0.5rem 0.75rem;border-radius:50vh;font-size:0.8rem;font-weight:550;color:#515a7a}header button.model-selector:hover{background-color:var(--color-gray-100)}header button.model-selector svg{width:1rem;height:1rem;color:var(--color-gray-400)}header button.model-selector:hover svg{color:var(--color-gray-600)}header button.action-btn{padding:var(--spacing-2);color:var(--color-gray-400);border-radius:50%}header button.action-btn:hover{background-color:var(--color-gray-100);color:var(--color-gray-600)}header button.action-btn svg{width:1.25rem;height:1.25rem}@media (min-width:1024px){header{padding-left:1.5rem;padding-right:1.5rem}#sidebar-toggle-mob{display:none}}.core-content{flex:1 1 0%;overflow-y:auto;display:flex;flex-direction:column;align-items:center;padding:var(--spacing-8) var(--spacing-4);box-sizing:border-box}.content-wrapper{width:100%;max-width:48rem;display:flex;flex-direction:column;align-items:center;gap:1.2rem;box-sizing:border-box}.welcome-area{text-align:center}.welcome-area h1{font-size:1.5rem;line-height:2rem;font-size:30px;color:var(--color-gray-800)}.input-area{width:100%;padding-left:0.5rem;padding-right:0.5rem;box-sizing:border-box}@media (min-width:768px){.input-area{padding-left:0;padding-right:0;box-sizing:border-box}}.input-wrapper{position:relative;display:flex;flex-direction:column;width:100%;min-height:52px;padding:0.75rem;background-color:var(--color-white);border:1px solid var(--color-gray-200);border-radius:1rem;transition:all 0.2s;box-sizing:border-box}.input-wrapper:focus-within{box-shadow:0 0 0 2px rgba(229,231,235,0.5);border-color:var(--color-gray-300)}#editable-content{min-height:34px;padding-top:4px;padding-bottom:4px;white-space:pre-wrap;word-break:break-word;cursor:text;width:100%;background-color:transparent;border:none;outline:none;color:var(--color-gray-800);max-height:200px;overflow-y:auto;padding-right:2.5rem;font-size:0.9375rem;line-height:1.5rem;box-sizing:border-box}#editable-content:empty:before{content:attr(placeholder);color:var(--color-gray-400);pointer-events:none}.edtext{display:inline-block;color:#4e6ef2;background-color:#e3ecff;border-radius:5px;padding:0 5px;margin:0 2px;margin-bottom:5px;user-select:none}.edtext:empty:before{content:attr(placeholder);color:var(--color-blue-300);pointer-events:none}#editable-content .edbili,#editable-content .edstyle{width:auto;line-height:16px;height:16px;display:inline-block;color:#4e6ef2;background-color:#e3ecff;padding:5px;border-radius:6px;margin:0 5px}#editable-content .edbili,#editable-content .edstyle{cursor:pointer}.toolbar{display:flex;justify-content:space-between;align-items:center;margin-top:var(--spacing-2)}.toolbar .flex{display:flex;align-items:center;gap:var(--spacing-2)}.toolbar button{padding:0;min-width:2rem;height:2rem;display:flex;align-items:center;justify-content:center;color:var(--color-gray-400);border-radius:0.5rem;transition:background-color 0.2s,color 0.2s}.toolbar button:hover{color:var(--color-gray-600);background-color:var(--color-gray-200);border-color:#cdcdcd}.toolbar button svg{width:1rem;height:1rem}.toolbar .setdraw{padding:0 0.5rem;border:1px solid #f1f1f1}#send-btn{background-color:var(--color-gray-200);color:var(--color-gray-400);border-radius:0.5rem;transition:all 0.2s;cursor:not-allowed}#send-btn:disabled{cursor:not-allowed}#send-btn:not(:disabled){background-color:var(--color-black);color:var(--color-white);cursor:pointer}#send-btn:not(:disabled):hover{background-color:var(--color-gray-700)}.disclaimer{margin-top:0.75rem;text-align:center}.disclaimer p{font-size:0.6875rem;color:var(--color-gray-400)}.prompt-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0.75rem;width:100%}.prompt-grid .conv:hover{background-color:#eee}.prompt-grid .conv span{pointer-events:none}@media (min-width:768px){.prompt-grid{grid-template-columns:repeat(4,minmax(0,1fr));padding-left:0;padding-right:0}}.prompt-card,.conv,.dialog-body>div>div{font-size:14px;padding:var(--spacing-2) var(--spacing-2);border-radius:0.75rem;border:1px solid var(--color-gray-200);transition:all 0.2s;line-height:1.5rem;cursor:pointer}.prompt-card:hover,.conv:hover,.dialog-body>div>div:hover{background-color:var(--color-gray-50);border-color:var(--color-gray-300)}.query-tag{display:inline-flex;align-items:center;background-color:var(--color-blue-200);color:var(--color-blue-800);padding:0 8px;border-radius:50vh;font-weight:500;margin-right:8px;margin-bottom:5px;cursor:pointer;transition:background-color 0.2s;user-select:none}.query-tag:hover{background-color:var(--color-gray-300)}#conversations{margin-top:0.75rem}.d-none{display:none !important}.conv-tags{display:flex;flex-wrap:wrap;gap:10px}.conv-tags>div{display:flex;align-items:center;gap:0 5px;padding:5px 10px;border:1px solid #ddd;border-radius:50vh;font-size:14px;cursor:pointer}.conv-tag svg{display:none}.product-info{width:100%;border-top:1px solid #ddd}.product-info svg{margin-right:10px;width:16px;height:16px}.product-info .product-item{padding:15px 0;border-bottom:1px solid #ddd}@media (min-width:1024px){header{padding-left:1.5rem;padding-right:1.5rem}.conv-tag:hover,.conv-ai:hover{background-color:var(--color-gray-100)}}.overlay{position:fixed;inset:0;background:rgba(10,12,15,0.35);display:flex;align-items:center;justify-content:center;opacity:0;pointer-events:none;transition:opacity .15s ease;z-index:99}.overlay.open{opacity:1;pointer-events:auto}.dialog{width:100%;max-width:520px;background:#fff;border-radius:12px;box-shadow:0 18px 40px rgba(17,24,39,0.25);overflow:hidden;z-index:100}.dialog-header{display:flex;align-items:center;justify-content:space-between;padding:14px 18px;border-bottom:1px solid rgba(0,0,0,0.06)}.dialog-title{font-weight:700}.close-btn{background:transparent;border:0;cursor:pointer;font-size:16px;padding:6px;border-radius:6px}.dialog-body{padding:14px;max-height:300px;overflow-y:auto;font-size:14px}.dialog-foot{text-align:right;padding:14px}.dialog-foot button{padding:8px 20px;border-radius:0.5rem}.dialog-text{padding:0 14px}.dialog-confirm{color:#fff;background-color:#ff3849}.dialog-confirm:hover{color:#fff !important;opacity:0.9}.dialog-cancel{color:#616161;background-color:#f2f2f2}.dialog-cancel:hover{background-color:#eee}.engine-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:12px}.engine{padding:10px;border-radius:10px;border:1px solid rgba(0,0,0,0.04);font-size:0.9rem;cursor:pointer;user-select:none;transition:transform .08s ease,box-shadow .08s ease,border-color .08s ease}.engine p{padding:0;font-size:0.8rem;color:#999}.engine:hover{box-shadow:0 8px 20px rgba(17,24,39,0.08);border-color:rgba(0,0,0,0.08)}.selected{outline:2px solid var(--accent);position:relative}.selected::after{content:"✔";position:absolute;right:8px;top:8px;font-size:11px;color:var(--accent);font-weight:700}