:root{color-scheme:dark;font-family:Inter,PingFang SC,Microsoft YaHei,system-ui,sans-serif;line-height:1.5;font-weight:400;background:#0a0f1d;color:#f6f8fd;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}*{box-sizing:border-box}html,body,#root{margin:0;min-height:100%;height:100%}body{background:radial-gradient(circle at top,rgba(65,123,255,.14),transparent 30%),linear-gradient(180deg,#09101d,#0a0f1d)}button,textarea,select{font:inherit}button{border:0;cursor:pointer}select{appearance:none}.app-shell{display:grid;min-height:100dvh;background:#030710b8;-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);transition:grid-template-columns .16s ease}.app-shell.sidebar-visible{grid-template-columns:290px minmax(0,1fr)}.app-shell.sidebar-hidden{grid-template-columns:0 minmax(0,1fr)}.app-shell.sidebar-hidden .sidebar{padding-left:0;padding-right:0;border-right:0;pointer-events:none}.sidebar{display:flex;flex-direction:column;gap:14px;min-width:0;overflow:hidden;padding:18px 14px;border-right:1px solid rgba(255,255,255,.06);background:#080b15f5}.sidebar-header{display:flex;gap:10px;align-items:center}.sidebar-toggle,.tool-button,.primary-button,.ghost-button,.tool-pill{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:40px;padding:0 14px;border-radius:10px;transition:.12s ease}.sidebar-toggle,.primary-button{background:#f2f5fb;color:#111827;font-weight:700}.ghost-button,.tool-button,.tool-pill,.icon-button{background:#ffffff0f;color:#edf2ff}.icon-button{display:inline-grid;place-items:center;width:38px;height:38px;border-radius:10px}.icon-button.active-toggle{background:#5a80ff2e;color:#f6f8fd}.thread-list{display:flex;flex-direction:column;gap:8px;overflow:auto;padding-right:2px}.thread-card{display:grid;gap:5px;width:100%;padding:12px;text-align:left;background:#ffffff08;color:#f3f5fc;border-radius:10px;border:1px solid transparent}.thread-card.active{background:#607fff2e;border-color:#7d97ff66}.thread-title{font-size:14px;font-weight:700}.thread-preview,.thread-meta{font-size:12px;color:#a9b3cb}.thread-preview{display:-webkit-box;overflow:hidden;-webkit-line-clamp:2;-webkit-box-orient:vertical}.thread-meta{display:flex;justify-content:space-between;gap:12px}.main-panel{display:grid;grid-template-rows:auto minmax(0,1fr) auto;min-width:0}.topbar{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:18px 24px;border-bottom:1px solid rgba(255,255,255,.06);background:#0a0e18c7;-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);position:sticky;top:0;z-index:5}.topbar-left,.toolbar{display:flex;align-items:center;gap:16px;min-width:0}.brand-block{display:grid;min-width:0}.brand-title{font-size:14px;font-weight:700}.brand-subtitle{font-size:12px;color:#a9b3cb;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.toolbar-field{display:grid;gap:8px}.toolbar-field>span{font-size:12px;color:#99a4bf}.toolbar select{min-width:240px;max-width:min(44vw,360px);height:42px;padding:0 14px;border-radius:10px;border:1px solid rgba(255,255,255,.12);background:#111726f5;color:#f7f9ff;outline:none}.toolbar select:focus{border-color:#7194ffe6;box-shadow:0 0 0 3px #527fff38}.toolbar select option,.toolbar select optgroup{background:#f7f9ff;color:#111827}.segmented-control{display:inline-grid;grid-auto-flow:column;grid-auto-columns:minmax(58px,1fr);padding:4px;border-radius:10px;background:#ffffff0f}.segmented-control button{min-width:58px;height:34px;padding:0 12px;border-radius:8px;background:transparent;color:#b0bad0;font-weight:600}.segmented-control button.selected{background:#f3f6ff;color:#0f172a}.segmented-control button:disabled{opacity:.45;cursor:not-allowed}.chat-panel{min-height:0;overflow:auto;padding:28px 24px 12px}.message-list{display:flex;flex-direction:column;gap:20px;width:min(100%,1040px);margin:0 auto}.message{display:flex}.message.user{justify-content:flex-end}.message.assistant,.message.system{justify-content:flex-start}.message-body{display:grid;gap:12px;width:min(100%,720px);padding:16px 18px;border-radius:14px;background:#ffffff0a;border:1px solid rgba(255,255,255,.06);overflow:hidden}.message.user .message-body{background:#4468df38;border-color:#7194ff57}.message-meta{display:flex;align-items:center;justify-content:space-between;gap:12px}.message-role,.message-time{font-size:12px;color:#aab3cb}.message-role{font-weight:700}.message-time{white-space:nowrap}.message-body p{margin:0;white-space:pre-wrap}.message-body pre{overflow:auto;margin:0;padding:14px;border-radius:10px;background:#040812eb}.message-body code{font-family:SFMono-Regular,Consolas,monospace}.message-body ul,.message-body ol{margin:0;padding-left:20px}.message-body h1,.message-body h2,.message-body h3,.message-body h4{margin:0;font-size:16px}.message-attachments{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,220px));gap:12px}.message-image{width:100%;aspect-ratio:1;object-fit:cover;border-radius:10px;border:1px solid rgba(255,255,255,.08)}.message-flag{font-size:12px;color:#ffbe73}.reasoning-toggle{display:inline-flex;align-items:center;gap:8px;width:fit-content;padding:0;background:transparent;color:#9fb2f7;font-size:12px;font-weight:700}.reasoning-panel{padding:12px 14px;border-radius:10px;background:#5e78cb1a;border:1px solid rgba(113,148,255,.16)}.reasoning-panel p{color:#d4defd;font-size:13px}.stream-status,.status-panel,.empty-state{width:min(100%,1040px);margin:0 auto}.stream-status,.status-panel{display:inline-flex;align-items:center;gap:10px;padding:14px 16px;border-radius:12px;background:#ffffff0a;color:#dbe4ff}.status-panel.error{background:#ff75751f;color:#ffd1d1}.spin{animation:spin .9s linear infinite}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.empty-state{display:grid;place-items:center;min-height:100%;gap:10px;color:#dce4fb;text-align:center}.empty-state h1{margin:0;font-size:clamp(30px,4vw,44px);font-weight:700}.empty-state p{margin:0;color:#aab3cb}.composer-shell{display:grid;gap:12px;padding:12px 24px calc(18px + env(safe-area-inset-bottom));border-top:1px solid rgba(255,255,255,.06);background:#0b0f18f5}.attachment-row{display:flex;gap:10px;overflow:auto;width:min(100%,1040px);margin:0 auto}.attachment-chip{display:grid;grid-template-columns:56px minmax(0,1fr) 30px;gap:10px;align-items:center;min-width:240px;max-width:280px;padding:8px;border-radius:10px;background:#ffffff0f}.attachment-chip img{width:56px;height:56px;object-fit:cover;border-radius:10px}.attachment-copy{display:grid;min-width:0}.attachment-copy span{font-size:12px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.attachment-copy span:last-child{color:#98a4bf}.composer{width:min(100%,1040px);margin:0 auto;padding:14px;border-radius:14px;background:#ffffff0d;border:1px solid rgba(255,255,255,.08)}.composer textarea{width:100%;min-height:72px;max-height:220px;resize:none;border:0;outline:none;background:transparent;color:#f4f7ff}.composer-actions,.composer-tools{display:flex;align-items:center;gap:10px}.composer-actions{justify-content:space-between;margin-top:12px}.tool-button{min-height:38px;padding:0 12px;font-size:14px}.tool-pill{font-size:13px;color:#d8e0ff}.tool-button:disabled,.icon-button:disabled{opacity:.45;cursor:not-allowed}.send-button{display:inline-grid;place-items:center;width:44px;height:44px;border-radius:12px;background:#eef2fb;color:#111827}.send-button:disabled{opacity:.5;cursor:not-allowed}.send-button.stop{background:#ff7d7d29;color:#ffd7d7}.camera-backdrop,.sidebar-backdrop{position:fixed;inset:0;background:#01050f99;z-index:8}.camera-backdrop{display:grid;place-items:center;padding:16px}.camera-panel{width:min(100%,560px);display:grid;gap:16px;padding:18px;border-radius:14px;background:#0d1220;border:1px solid rgba(255,255,255,.08)}.camera-header,.camera-actions{display:flex;align-items:center;justify-content:space-between;gap:12px}.camera-stage{display:grid;gap:10px}.camera-video,.camera-error{width:100%;aspect-ratio:4 / 3;border-radius:12px;background:#03060e}.camera-video{object-fit:cover}.camera-error{display:grid;place-items:center;gap:8px;color:#ffccbf;padding:20px;text-align:center}.desktop-only{display:inline-grid}.mobile-only{display:none}@media(max-width:979px){.app-shell,.app-shell.sidebar-visible,.app-shell.sidebar-hidden{grid-template-columns:1fr}.sidebar{position:fixed;inset:0 auto 0 0;width:min(86vw,320px);transform:translate(-100%);transition:transform .14s ease;z-index:9}.sidebar.open{transform:translate(0)}.mobile-only{display:inline-grid}.desktop-only{display:none}.topbar{flex-wrap:wrap;padding:14px 16px}.toolbar{width:100%;flex-wrap:wrap}.toolbar-field{flex:1 1 220px}.toolbar select{min-width:0;max-width:none;width:100%}.chat-panel{padding:18px 16px 12px}.message-body{width:min(100%,100%)}.composer-shell{padding:10px 16px calc(16px + env(safe-area-inset-bottom))}.composer-actions,.composer-tools{flex-wrap:wrap}.tool-button{flex:1 1 120px}}@media(max-width:640px){.empty-state h1{font-size:26px}.attachment-chip{min-width:220px}.composer textarea{min-height:110px}.segmented-control{width:100%}.segmented-control button{min-width:0}.message-meta{align-items:flex-start;flex-direction:column;gap:4px}}
