:root,[data-theme=light]{color-scheme:light;--bg-app: #fcfcfc;--bg-surface: #ffffff;--bg-surface-2: #fafafa;--bg-sidebar: rgba(248, 248, 250, .85);--bg-hover: rgba(0, 0, 0, .045);--bg-active: rgba(0, 0, 0, .08);--bg-input: #ffffff;--bg-code: rgba(0, 0, 0, .035);--bg-user-msg: rgba(0, 0, 0, .05);--text: #1d1d1f;--text-secondary: #6e6e73;--text-tertiary: #86868b;--hairline: rgba(0, 0, 0, .06);--hairline-strong: rgba(0, 0, 0, .12);--shadow-xs: 0 1px 2px rgba(0, 0, 0, .04);--shadow-sm: 0 2px 8px rgba(0, 0, 0, .06);--shadow-md: 0 6px 24px rgba(0, 0, 0, .08);--shadow-lg: 0 12px 48px rgba(0, 0, 0, .12);--shadow-pop: 0 8px 40px rgba(0, 0, 0, .14);--primary: #1d1d1f;--primary-hover: #000000;--primary-text: #ffffff;--accent: #0071e3;--danger: #ff3b30;--danger-bg: rgba(255, 59, 48, .08);--radius-sm: 10px;--radius-md: 14px;--radius-lg: 20px;--radius-xl: 28px;--fs: 14px;--fs-title: 16px;--fs-display: 20px}[data-theme=dark]{color-scheme:dark;--bg-app: #000000;--bg-surface: #1d1d1f;--bg-surface-2: #161618;--bg-sidebar: rgba(28, 28, 30, .85);--bg-hover: rgba(255, 255, 255, .06);--bg-active: rgba(255, 255, 255, .1);--bg-input: #1c1c1e;--bg-code: rgba(255, 255, 255, .06);--bg-user-msg: rgba(255, 255, 255, .08);--text: #f5f5f7;--text-secondary: #98989d;--text-tertiary: #6e6e73;--hairline: rgba(255, 255, 255, .08);--hairline-strong: rgba(255, 255, 255, .14);--shadow-xs: 0 1px 2px rgba(0, 0, 0, .3);--shadow-sm: 0 2px 8px rgba(0, 0, 0, .4);--shadow-md: 0 6px 24px rgba(0, 0, 0, .5);--shadow-lg: 0 12px 48px rgba(0, 0, 0, .6);--shadow-pop: 0 8px 40px rgba(0, 0, 0, .7);--primary: #f5f5f7;--primary-hover: #ffffff;--primary-text: #1d1d1f;--accent: #2997ff;--danger: #ff453a;--danger-bg: rgba(255, 69, 58, .12)}*{box-sizing:border-box;margin:0;padding:0}html,body{height:100%}html{font-size:var(--fs, 14px)}body{font-family:var(--oc-font-family, "TinyChat Text", -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif);background:var(--bg-app);color:var(--text);font-size:var(--fs, 14px);line-height:1.6;display:flex;height:100vh;height:100dvh;overflow:hidden;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;letter-spacing:-.01em}.hidden{display:none!important}.muted{color:var(--text-secondary)}.small{font-size:var(--fs, 14px)}::selection{background:var(--accent);color:#fff}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:#8080804d;border-radius:3px}::-webkit-scrollbar-thumb:hover{background:#80808080}.icon-btn{background:none;border:none;color:var(--text-secondary);cursor:pointer;padding:8px;border-radius:999px;display:inline-flex;align-items:center;justify-content:center;transition:background .15s,color .15s,transform .1s}.icon-btn:hover{background:var(--bg-hover);color:var(--text)}.icon-btn:active{transform:scale(.94)}.sidebar{width:264px;min-width:264px;background:var(--bg-sidebar);backdrop-filter:saturate(180%) blur(20px);-webkit-backdrop-filter:saturate(180%) blur(20px);display:flex;flex-direction:column;transition:margin-left .25s cubic-bezier(.4,0,.2,1);position:relative}.sidebar:after{content:"";position:absolute;right:0;top:0;bottom:0;width:1px;background:linear-gradient(to bottom,transparent,var(--hairline) 12%,var(--hairline) 88%,transparent)}.sidebar.collapsed{margin-left:calc(0px - var(--sidebar-w, 18.857rem))}.sidebar-header{display:flex;align-items:center;gap:8px;padding:14px 14px 10px}.new-chat-btn{flex:1;display:flex;align-items:center;justify-content:center;gap:8px;padding:10px 14px;border:none;border-radius:var(--radius-md);background:var(--bg-surface);color:var(--text);font-size:1rem;font-weight:500;cursor:pointer;box-shadow:var(--shadow-xs);transition:background .15s,box-shadow .15s,transform .1s}.new-chat-btn:hover{box-shadow:var(--shadow-sm);background:var(--bg-surface)}.new-chat-btn:active{transform:scale(.98)}.chat-list{flex:1;overflow-y:auto;padding:6px 10px 10px;display:flex;flex-direction:column;gap:2px}.chat-item{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:var(--radius-sm);cursor:pointer;font-size:1rem;color:var(--text);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;transition:background .12s}.chat-item:hover{background:var(--bg-hover)}.chat-item.active{background:var(--bg-active);font-weight:500}.chat-item:focus-visible{outline:2px solid var(--primary);outline-offset:-2px}.chat-item .chat-icon{flex-shrink:0;color:var(--text-tertiary);display:flex}.chat-item.active .chat-icon{color:var(--text-secondary)}.chat-item .chat-title{flex:1;overflow:hidden;text-overflow:ellipsis}.chat-item .del-chat{opacity:0;border:none;background:none;cursor:pointer;color:var(--text-tertiary);font-size:.929rem;padding:2px 6px;border-radius:6px;flex-shrink:0;transition:opacity .12s}.chat-item:hover .del-chat{opacity:1}.chat-item .del-chat:hover{color:var(--danger);background:var(--danger-bg)}.sidebar-footer{padding:10px 12px 14px;display:flex;flex-direction:column;gap:6px}.user-chip{display:flex;align-items:center;gap:10px;padding:8px 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.model-name{font-size:1rem;font-weight:600;color:var(--text);max-width:240px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.chevron{color:var(--text-tertiary);flex-shrink:0;display:flex;transition:transform .2s}.model-picker.open .chevron{transform:rotate(180deg)}.sidebar-float-btn{position:fixed;left:12px;top:64px;z-index:600;width:36px;height:36px;border:none;border-radius:50%;background:var(--bg-surface);color:var(--text);cursor:pointer;display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow-md);transition:transform .15s,box-shadow .15s;animation:floatIn .2s cubic-bezier(.2,.8,.2,1)}.sidebar-float-btn:hover{box-shadow:var(--shadow-lg);transform:scale(1.06)}.sidebar-float-btn:active{transform:scale(.94)}@keyframes floatIn{0%{opacity:0;transform:translate(-8px) scale(.9)}to{opacity:1;transform:translate(0) scale(1)}}.sun-icon,.moon-icon{display:none}[data-theme=light] .sun-icon,[data-theme=dark] .moon-icon{display:block}.provider-chip{display:flex;align-items:center;gap:6px;font-size:.893rem;color:var(--text-secondary);padding:4px 10px;border-radius:999px;margin-right:6px;background:var(--bg-hover)}.provider-dot{width:6px;height:6px;border-radius:50%;background:var(--accent);flex-shrink:0}.oc-menu{position:fixed;z-index:1700;min-width:220px;max-width:min(520px,calc(100vw - 16px));box-sizing:border-box;background:var(--bg-surface);border-radius:var(--radius-md);box-shadow:var(--shadow-pop);padding:6px;animation:menuIn .15s cubic-bezier(.2,.8,.2,1);max-height:320px;display:flex;flex-direction:column}@keyframes menuIn{0%{opacity:0;transform:translateY(-6px) scale(.98)}to{opacity:1;transform:translateY(0) scale(1)}}.oc-menu .oc-menu-title{font-size:.857rem;color:var(--text-tertiary);padding:6px 10px 4px;font-weight:600;letter-spacing:.03em;text-transform:uppercase}.oc-menu .oc-menu-search{margin:4px 6px;padding:8px 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textarea::placeholder{color:var(--text-tertiary)}.send-btn,.stop-btn{width:34px;height:34px;border:none;border-radius:50%;background:var(--primary);color:var(--primary-text);cursor:pointer;display:flex;align-items:center;justify-content:center;flex-shrink:0;transition:background .15s,transform .12s}.send-btn:hover{background:var(--primary-hover)}.send-btn:active{transform:scale(.9)}.send-btn:disabled{background:var(--bg-active);color:var(--text-tertiary);cursor:not-allowed}.stop-btn{background:var(--text-secondary)}.stop-btn:hover{background:var(--text)}.composer-hint{text-align:center;font-size:.857rem;color:var(--text-tertiary);margin-top:9px}.modal-mask{position:fixed;inset:0;background:#0006;display:flex;align-items:center;justify-content:center;z-index:1000;animation:fadeIn .18s ease;backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px)}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.modal{background:var(--bg-surface);border-radius:var(--radius-lg);width:min(540px,92vw);max-height:85vh;display:flex;flex-direction:column;box-shadow:var(--shadow-lg);animation:modalIn .22s cubic-bezier(.2,.8,.2,1)}@keyframes modalIn{0%{opacity:0;transform:translateY(16px) scale(.97)}to{opacity:1;transform:translateY(0) scale(1)}}.modal-header{display:flex;align-items:center;justify-content:space-between;padding:18px 22px 14px}.modal-header h3{font-size:1.214rem;font-weight:650;letter-spacing:-.01em}.modal-body{padding:6px 22px 24px;overflow-y:auto}.section-title{font-size:.857rem;font-weight:600;color:var(--text-tertiary);margin:18px 0 10px;letter-spacing:.05em;text-transform:uppercase}.section-title:first-child{margin-top:6px}.field{display:block;margin-bottom:14px}.field span{display:block;font-size:.929rem;color:var(--text-secondary);margin-bottom:6px;font-weight:500}.field input{width:100%;padding:11px 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var(--border)}.select-box-sm:hover{background:var(--bg-active);border-color:var(--border-strong)}.btn{padding:10px 20px;border:none;border-radius:999px;font-size:1rem;font-family:inherit;cursor:pointer;background:var(--bg-hover);color:var(--text);transition:all .15s;font-weight:500}.btn:hover{background:var(--bg-active)}.btn.primary{background:var(--primary);color:var(--primary-text)}.btn.primary:hover{background:var(--primary-hover)}.btn.primary:disabled{background:var(--bg-active);color:var(--text-tertiary);cursor:not-allowed}.btn.danger{background:var(--danger-bg);color:var(--danger)}.btn.danger:hover{background:var(--danger);color:#fff}.btn.small{padding:6px 14px;font-size:.929rem;border-radius:999px}.w-full{width:100%}.provider-list{display:flex;flex-direction:column;gap:8px}.provider-card{border-radius:var(--radius-md);padding:13px 16px;display:flex;align-items:center;justify-content:space-between;gap:12px;background:var(--bg-surface-2);transition:background .15s}.provider-card:hover{background:var(--bg-hover)}.provider-card .pc-info{min-width:0;width:100%}.provider-card-actions{flex-wrap:wrap;justify-content:flex-end}@media (max-width: 560px){.provider-card{align-items:flex-start;flex-direction:column}.provider-card-actions{width:100%;justify-content:flex-start}.provider-card .pc-name{font-size:.964rem}.provider-card .pc-key{overflow-wrap:anywhere}}.provider-card .pc-name{font-weight:600;font-size:1rem;display:flex;align-items:center;gap:6px;flex-wrap:wrap}.provider-card .pc-url{font-size:.857rem;color:var(--text-secondary);margin-top:2px;white-space:normal;overflow-wrap:anywhere;word-break:break-word}.badge{font-size:.786rem;padding:2px 9px;border-radius:999px;font-weight:500}.badge.global{background:color-mix(in srgb,var(--accent) 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input{accent-color:var(--accent);margin:0}.access-model.disabled{opacity:.45;pointer-events:none}.access-all{font-size:.857rem;color:var(--text-secondary);cursor:pointer}.add-provider{margin-top:16px}.add-provider summary{cursor:pointer;font-size:1rem;color:var(--accent);font-weight:500;padding:6px 0;list-style:none;transition:opacity .15s}.add-provider summary:hover{opacity:.8}.add-provider summary::-webkit-details-marker{display:none}.add-provider-form{margin-top:14px;padding-top:14px}.row-between{display:flex;align-items:center;justify-content:space-between;padding:10px 0;font-size:1rem}.switch{position:relative;display:inline-block!important;width:44px;height:26px;min-height:26px;margin:0!important;flex-shrink:0;vertical-align:middle}.switch input{opacity:0;width:0;height:0}.slider{position:absolute;cursor:pointer;inset:0;width:100%;height:100%;display:block;margin:0;background:var(--bg-active);border-radius:26px;transition:.2s}.slider:before{content:"";position:absolute;width:20px;height:20px;border-radius:50%;background:#fff;left:3px;top:3px;transition:.2s;box-shadow:0 2px 4px #00000040}.switch input:checked+.slider{background:var(--accent)}.switch input:checked+.slider:before{transform:translate(18px)}.auth-body{display:flex;align-items:center;justify-content:center;background:var(--bg-app)}.auth-card{width:400px;max-width:92vw;background:var(--bg-surface);border-radius:var(--radius-xl);padding:44px 40px 36px;box-shadow:var(--shadow-md)}.auth-logo{text-align:center;margin-bottom:30px}.auth-logo .logo-wrap{width:60px;height:60px;margin:0 auto 16px;border-radius:18px;background:linear-gradient(135deg,var(--primary),var(--text-secondary));color:var(--primary-text);display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow-md)}.auth-logo h1{font-size:1.571rem;color:var(--text);font-weight:700;letter-spacing:-.02em}.auth-logo p{margin-top:4px}.auth-error{background:var(--danger-bg);color:var(--danger);padding:10px 14px;border-radius:var(--radius-sm);font-size:1rem;margin-bottom:16px}.auth-switch{text-align:center;margin-top:22px;font-size:1rem;color:var(--text-secondary)}.auth-switch a{color:var(--accent);text-decoration:none;font-weight:500}.auth-switch a:hover{text-decoration:underline}.admin-body{display:block;overflow:auto;background:var(--bg-app)}.admin-container{width:80%;max-width:none;margin:0 auto;padding:36px 0 60px}.admin-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:26px}.admin-header h1{font-size:1.857rem;font-weight:700;letter-spacing:-.02em}.admin-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:14px;margin-bottom:26px}.stat-card{background:var(--bg-surface);border-radius:var(--radius-md);padding:20px 22px;box-shadow:var(--shadow-xs);transition:box-shadow .15s}.stat-card:hover{box-shadow:var(--shadow-sm)}.stat-card .stat-value{font-size:2rem;font-weight:700;letter-spacing:-.02em}.stat-card .stat-label{font-size:.929rem;color:var(--text-secondary);margin-top:4px}.admin-card{background:var(--bg-surface);border-radius:var(--radius-md);padding:24px;box-shadow:var(--shadow-xs);margin-bottom:20px}.admin-card h2{font-size:1.214rem;font-weight:650;margin-bottom:18px;letter-spacing:-.01em}.model-votes{display:flex;flex-direction:column;gap:6px}.model-vote-row{display:grid;grid-template-columns:minmax(0,1fr) 72px 72px;align-items:center;gap:10px;padding:8px 10px;border-radius:10px;background:var(--bg-app)}.model-vote-row .mv-name{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:.964rem}.model-vote-row .mv-up,.model-vote-row .mv-down{font-size:.929rem;font-variant-numeric:tabular-nums;text-align:right}.model-vote-row .mv-up{color:var(--brand)}.model-vote-row .mv-down{color:var(--text-tertiary)}.admin-tabs{display:flex;gap:4px;margin-bottom:22px;padding:4px;background:var(--bg-hover);border-radius:12px;width:fit-content;max-width:100%;overflow-x:auto}.admin-tab{border:none;background:transparent;padding:8px 18px;border-radius:9px;font-size:1rem;font-weight:500;color:var(--text-secondary);cursor:pointer;white-space:nowrap;transition:background .15s,color .15s;font-family:inherit}.admin-tab:hover{color:var(--text)}.admin-tab.active{background:var(--bg-surface);color:var(--text);box-shadow:var(--shadow-xs);font-weight:600}.admin-panel{display:none}.admin-panel.active{display:block;animation:panelIn .18s ease}@keyframes panelIn{0%{opacity:0;transform:translateY(4px)}to{opacity:1;transform:translateY(0)}}.admin-table{width:100%;border-collapse:collapse;font-size:1rem}.admin-table th,.admin-table td{text-align:left;padding:12px 14px}.admin-table th{color:var(--text-tertiary);font-weight:500;font-size:.893rem;letter-spacing:.03em;text-transform:uppercase}.admin-table td{border-top:1px solid var(--hairline)}.admin-table tr:first-child td{border-top:none}.admin-table tr:hover td{background:var(--bg-hover)}.admin-row-actions{display:flex;gap:6px;align-items:center}.admin-row-actions input[type=number]{width:84px;padding:6px 10px;border:none;border-radius:8px;background:var(--bg-hover);color:var(--text);font-size:.929rem;outline:none}.toast{position:fixed;bottom:32px;left:50%;transform:translate(-50%);background:var(--text);color:var(--bg-surface);padding:11px 22px;border-radius:999px;font-size:1rem;z-index:2000;box-shadow:var(--shadow-lg);animation:toastIn .2s ease}@keyframes toastIn{0%{opacity:0;transform:translate(-50%) translateY(12px)}to{opacity:1;transform:translate(-50%) translateY(0)}}.toast.error{background:var(--danger);color:#fff}@media (max-width: 768px){.admin-container{width:auto;margin:0 16px}.sidebar{position:fixed;z-index:500;height:100%;box-shadow:var(--shadow-lg)}.topbar-left{gap:2px}.model-picker .model-name{max-width:140px}.sidebar-float-btn{top:60px;left:10px}.msg.user .msg-content{max-width:92%}}