[data-theme="light"] .assistant-v2-shell{--assistant-v2-bg:#f8fafc;--assistant-v2-panel:rgba(255,255,255,0.88);--assistant-v2-card:rgba(255,255,255,0.92);--assistant-v2-border:rgba(148,163,184,0.22);--assistant-v2-border-strong:rgba(37,99,235,0.28);--assistant-v2-text:#0f172a;--assistant-v2-text-soft:#475569;--assistant-v2-accent:#2563eb;--assistant-v2-shadow:0 10px 30px rgba(15,23,42,0.08)}[data-theme="light"] body.assistant-v2-body{color:var(--assistant-v2-text);background:radial-gradient(circle at 14% 12%,rgba(37,99,235,0.08),transparent 22%),radial-gradient(circle at 88% 10%,rgba(59,130,246,0.05),transparent 18%),linear-gradient(140deg,#f8fafc 0%,#ffffff 38%,#f0f4f8 100%)}[data-theme="light"] body.assistant-v2-body::before{background:linear-gradient(rgba(37,99,235,0.05) 1px,transparent 1px),linear-gradient(90deg,rgba(37,99,235,0.05) 1px,transparent 1px);mask-image:radial-gradient(circle at center,black 42%,transparent 100%);opacity:0.15}[data-theme="light"] body.assistant-v2-body::-webkit-scrollbar-thumb,[data-theme="light"] body.assistant-v2-body *::-webkit-scrollbar-thumb{background:rgba(37,99,235,0.4)}[data-theme="light"] .assistant-v2-brand-mark,[data-theme="light"] .assistant-v2-preview-icon{background:linear-gradient(145deg,rgba(37,99,235,0.1),rgba(59,130,246,0.05));border:1px solid rgba(37,99,235,0.12)}[data-theme="light"] .new-chat-btn{border:1px solid rgba(37,99,235,0.18);color:var(--assistant-v2-text);background:linear-gradient(135deg,rgba(37,99,235,0.08),rgba(59,130,246,0.04))}[data-theme="light"] .assistant-v2-sidebar-toggle{border:1px solid rgba(0,0,0,0.08);background:rgba(0,0,0,0.03);color:var(--assistant-v2-text)}[data-theme="light"] .assistant-v2-sidebar-toggle:hover{background:rgba(0,0,0,0.06)}[data-theme="light"] .assistant-v2-unfold-btn{border:1px solid rgba(0,0,0,0.08);background:var(--assistant-v2-card);color:var(--assistant-v2-text)}[data-theme="light"] .assistant-v2-stat,[data-theme="light"] .assistant-v2-context-metric,[data-theme="light"] .assistant-v2-bento-card{background:#f8fafc;border:1px solid rgba(0,0,0,0.04)}[data-theme="light"] .assistant-v2-nav-link{color:var(--assistant-v2-text);background:rgba(0,0,0,0.02)}[data-theme="light"] .assistant-v2-user-card{background:rgba(0,0,0,0.02);border:1px solid rgba(0,0,0,0.04)}[data-theme="light"] .assistant-v2-user-avatar{background:linear-gradient(145deg,rgba(37,99,235,0.1),rgba(59,130,246,0.05));border:1px solid rgba(37,99,235,0.12)}[data-theme="light"] .assistant-v2-collapse-btn{background:rgba(0,0,0,0.02);border:1px solid rgba(0,0,0,0.06);color:var(--assistant-v2-text-soft)}[data-theme="light"] .assistant-v2-pill,[data-theme="light"] .ghost,[data-theme="light"] .pill,[data-theme="light"] .icon-btn,[data-theme="light"] .send-btn,[data-theme="light"] .modal-btn,[data-theme="light"] .confirm-btn,[data-theme="light"] .quick-suggestion,[data-theme="light"] .action-btn,[data-theme="light"] .followup-chip,[data-theme="light"] .citation-item,[data-theme="light"] .history-delete,[data-theme="light"] .preview-remove,[data-theme="light"] .assistant-v2-inline-action{border:1px solid rgba(0,0,0,0.08);background:rgba(0,0,0,0.03);color:var(--assistant-v2-text)}[data-theme="light"] .assistant-v2-pill--accent{background:rgba(37,99,235,0.1);border-color:rgba(37,99,235,0.2)}[data-theme="light"] .assistant-v2-stage{border:1px solid rgba(37,99,235,0.1);backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px)}[data-theme="light"] .assistant-v2-empty{border:1px solid rgba(37,99,235,0.1);backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px)}[data-theme="light"] .assistant-v2-empty-badge{color:#5b21b6;background:#ede9fe;border:1px solid rgba(37,99,235,0.16)}[data-theme="light"] .viewport::-webkit-scrollbar-thumb{background:rgba(37,99,235,0.2)}[data-theme="light"] .assistant-v2-message--assistant .assistant-v2-author{color:#1d4ed8}[data-theme="light"] .assistant-v2-meta-sep{background:rgba(94,116,139,0.6)}[data-theme="light"] .bubble{border:1px solid rgba(0,0,0,0.08);background:linear-gradient(180deg,rgba(255,255,255,0.98),rgba(248,250,252,0.98));box-shadow:0 10px 24px rgba(15,23,42,0.08);color:var(--assistant-v2-text)}[data-theme="light"] .assistant-v2-bubble--assistant{border-color:rgba(37,99,235,0.1);box-shadow:0 8px 24px rgba(15,23,42,0.07),inset 0 1px 0 rgba(0,0,0,0.02)}[data-theme="light"] .assistant-v2-bubble--user{background:linear-gradient(180deg,rgba(37,99,235,0.08),rgba(255,255,255,0.94));border-color:rgba(37,99,235,0.12)}[data-theme="light"] .assistant-message-content{color:rgba(15,23,42,0.96)}[data-theme="light"] .assistant-message-content h1,[data-theme="light"] .assistant-message-content h2,[data-theme="light"] .assistant-message-content h3,[data-theme="light"] .assistant-message-content h4{color:#0f172a}[data-theme="light"] .assistant-message-content h2{color:#1d4ed8}[data-theme="light"] .assistant-message-content h3{color:#2563eb}[data-theme="light"] .assistant-message-content h4{color:#3b82f6}[data-theme="light"] .assistant-message-content p{color:rgba(15,23,42,0.92)}[data-theme="light"] .assistant-message-content strong{color:#0f172a}[data-theme="light"] .assistant-message-content a{color:#2563eb;text-decoration-color:rgba(37,99,235,0.45)}[data-theme="light"] .assistant-message-content a:hover{color:#1d4ed8}[data-theme="light"] .assistant-message-content code{background:rgba(37,99,235,0.06);border:1px solid rgba(37,99,235,0.1);color:#1d4ed8}[data-theme="light"] .assistant-message-content pre{background:linear-gradient(180deg,rgba(248,250,252,0.92),rgba(255,255,255,0.98));border:1px solid rgba(37,99,235,0.12);box-shadow:inset 0 1px 0 rgba(0,0,0,0.03),0 6px 16px rgba(15,23,42,0.08)}[data-theme="light"] .assistant-message-content pre::-webkit-scrollbar-thumb{background:rgba(37,99,235,0.3)}[data-theme="light"] .assistant-message-content pre code{color:#0f172a}[data-theme="light"] .assistant-message-content blockquote{border-inline-start:3px solid rgba(37,99,235,0.72);background:rgba(37,99,235,0.06);color:rgba(15,23,42,0.9)}[data-theme="light"] .assistant-message-content hr{background:linear-gradient(90deg,transparent,rgba(37,99,235,0.22),transparent)}[data-theme="light"] .assistant-evidence-block{border-color:rgba(37,99,235,0.14);background:linear-gradient(135deg,rgba(37,99,235,0.07),rgba(255,255,255,0.96)),rgba(248,250,252,0.92);box-shadow:inset 0 1px 0 rgba(255,255,255,0.65),0 8px 20px rgba(15,23,42,0.06)}[data-theme="light"] .assistant-evidence-title,[data-theme="light"] .assistant-evidence-grid strong{color:#0f172a}[data-theme="light"] .assistant-evidence-row>span,[data-theme="light"] .assistant-evidence-grid span{color:rgba(30,64,175,0.72)}[data-theme="light"] .assistant-evidence-chip{border-color:rgba(37,99,235,0.16);background:rgba(37,99,235,0.06);color:#1d4ed8}[data-theme="light"] .assistant-evidence-chip:hover{color:#1e3a8a;border-color:rgba(37,99,235,0.32)}[data-theme="light"] .assistant-evidence-chip--muted{border-color:rgba(15,23,42,0.08);background:rgba(15,23,42,0.035);color:rgba(15,23,42,0.72)}[data-theme="light"] .assistant-evidence-grid{border-block-start-color:rgba(15,23,42,0.08)}[data-theme="light"] .assistant-evidence-grid>div{background:rgba(15,23,42,0.035)}[data-theme="light"] .upload-counter{border-color:rgba(37,99,235,0.14);background:rgba(37,99,235,0.055);color:rgba(30,64,175,0.78)}[data-theme="light"] .assistant-message-content .table-scroll{border:1px solid rgba(0,0,0,0.06);background:rgba(0,0,0,0.02)}[data-theme="light"] .assistant-message-content th,[data-theme="light"] .assistant-message-content td{border-block-end:1px solid rgba(0,0,0,0.06)}[data-theme="light"] .assistant-message-content th{background:rgba(37,99,235,0.07);color:#0f172a}[data-theme="light"] .assistant-v2-status{background:rgba(239,68,68,0.12);color:#dc2626;border:1px solid rgba(239,68,68,0.2)}[data-theme="light"] .attach-chip{border:1px solid rgba(0,0,0,0.08);background:rgba(0,0,0,0.04)}[data-theme="light"] .attach-image{border:1px solid rgba(0,0,0,0.08)}[data-theme="light"] .history-item{background:rgba(0,0,0,0.03)}[data-theme="light"] .history-item.active{border-color:var(--assistant-v2-border-strong);background:rgba(37,99,235,0.08)}[data-theme="light"] .history-item:hover{background:rgba(37,99,235,0.08);border-color:rgba(37,99,235,0.22)}[data-theme="light"] .history-divider{background:rgba(0,0,0,0.08)}[data-theme="light"] .assistant-v2-history-mark{background:rgba(37,99,235,0.72);box-shadow:0 0 0 6px rgba(37,99,235,0.08)}[data-theme="light"] .assistant-v2-composer-shell{background:linear-gradient(180deg,rgba(255,255,255,0.94),rgba(248,250,252,0.98));border:1px solid rgba(15,23,42,0.08);box-shadow:0 18px 40px rgba(15,23,42,0.08)}[data-theme="light"] .composer{background:transparent}[data-theme="light"] .preview-card{background:rgba(0,0,0,0.03)}[data-theme="light"] .assistant-v2-attach-btn{background:rgba(15,23,42,0.03);border-color:rgba(15,23,42,0.08);color:var(--assistant-v2-text)}[data-theme="light"] .composer-input{color:var(--assistant-v2-text);background:rgba(255,255,255,0.74)}[data-theme="light"] .send-btn.ready{background:linear-gradient(135deg,rgba(37,99,235,0.12),rgba(59,130,246,0.06));border-color:rgba(37,99,235,0.18)}[data-theme="light"] .send-btn.stop{background:rgba(239,68,68,0.1);border-color:rgba(239,68,68,0.2)}[data-theme="light"] .mode-selector{border:1px solid rgba(0,0,0,0.08);background:rgba(0,0,0,0.03)}[data-theme="light"] .mode-option{color:var(--assistant-v2-text-soft)}[data-theme="light"] .mode-option.active{background:rgba(37,99,235,0.1);color:var(--assistant-v2-accent)}[data-theme="light"] .modal,[data-theme="light"] .confirm-modal{background:rgba(240,246,252,0.72)}[data-theme="light"] .modal-card,[data-theme="light"] .confirm-card{border:1px solid rgba(37,99,235,0.1);backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px)}[data-theme="light"] .modal-row select{border:1px solid rgba(0,0,0,0.08);background:rgba(0,0,0,0.04);color:var(--assistant-v2-text)}[data-theme="light"] .modal-btn.primary{background:rgba(37,99,235,0.12);border-color:rgba(37,99,235,0.24)}[data-theme="light"] .toast{background:var(--assistant-v2-card);border:1px solid var(--assistant-v2-border)}[data-theme="light"] .toast-icon{background:rgba(0,0,0,0.08)}[data-theme="light"] .ghost:hover,[data-theme="light"] .pill:hover,[data-theme="light"] .icon-btn:hover,[data-theme="light"] .send-btn:hover,[data-theme="light"] .quick-suggestion:hover,[data-theme="light"] .action-btn:hover,[data-theme="light"] .followup-chip:hover,[data-theme="light"] .citation-item:hover,[data-theme="light"] .history-delete:hover,[data-theme="light"] .preview-remove:hover,[data-theme="light"] .modal-btn:hover,[data-theme="light"] .confirm-btn:hover,[data-theme="light"] .assistant-v2-inline-action:hover,[data-theme="light"] .new-chat-btn:hover,[data-theme="light"] .assistant-v2-nav-link:hover,[data-theme="light"] .assistant-v2-nav-link.is-active{background:rgba(0,0,0,0.04);border-color:var(--assistant-v2-border-strong)}[data-theme="light"] .assistant-v2-empty-title{color:#0f172a}[data-theme="light"] .model-tier-btn{background:rgba(255,255,255,0.92);border-color:rgba(148,163,184,0.35);color:var(--assistant-v2-text);box-shadow:0 2px 8px rgba(15,23,42,0.06)}[data-theme="light"] .model-tier-btn:hover{background:#ffffff;border-color:rgba(37,99,235,0.28);box-shadow:0 4px 14px rgba(37,99,235,0.1)}[data-theme="light"] .model-tier-menu{background:#ffffff;border-color:rgba(148,163,184,0.28);box-shadow:0 20px 60px rgba(15,23,42,0.12),0 0 0 1px rgba(37,99,235,0.06)}[data-theme="light"] .model-tier-item{color:var(--assistant-v2-text)}[data-theme="light"] .model-tier-item:hover:not(.is-locked){background:rgba(37,99,235,0.06);border-color:rgba(37,99,235,0.15)}[data-theme="light"] .model-tier-item.is-active{background:rgba(37,99,235,0.08);border-color:rgba(37,99,235,0.22)}[data-theme="light"] .model-tier-item.is-locked{opacity:0.45}[data-theme="light"] .model-tier-info strong{color:var(--assistant-v2-text)}[data-theme="light"] .model-tier-info span{color:#475569}[data-theme="light"] .model-tier-tag{background:rgba(37,99,235,0.1);color:#1d4ed8}[data-theme="light"] .model-tier-lock{color:#94a3b8}[data-theme="light"] .model-tier-dot{background:#cbd5e1}[data-theme="light"] .model-tier-item.is-active .model-tier-dot{background:#2563eb;box-shadow:0 0 6px rgba(37,99,235,0.35)}[data-theme="light"] .model-tier-item[data-tier="pro"] .model-tier-dot{background:#60a5fa}[data-theme="light"] .model-tier-item[data-tier="enterprise"] .model-tier-dot{background:#a78bfa}[data-theme="light"] .model-tier-item.is-active[data-tier="pro"] .model-tier-dot{background:#3b82f6;box-shadow:0 0 6px rgba(59,130,246,0.35)}[data-theme="light"] .model-tier-item.is-active[data-tier="enterprise"] .model-tier-dot{background:#8b5cf6;box-shadow:0 0 6px rgba(139,92,246,0.35)}