*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--bg-main: #0a0a0a;--bg-card: #111;--bg-surface: #1a1a1a;--bg-input: #111;--border-color: #222;--border-input: #333;--text-primary: #fff;--text-secondary: #999;--text-muted: #666;--accent: #6366f1;--accent-hover: #818cf8;--danger: #ef4444;--radius: 12px;--radius-sm: 8px;--base-font-size: 16px;--safe-top: env(safe-area-inset-top);--safe-bottom: env(safe-area-inset-bottom)}html,body{width:100%;height:100%;overflow:hidden;touch-action:manipulation;-webkit-tap-highlight-color:transparent;-webkit-user-select:none;user-select:none;background:var(--bg-main);color:var(--text-primary);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;font-size:var(--base-font-size);line-height:1.5}#app{width:100%;height:100%;position:relative;display:flex;flex-direction:column}#screen-container{flex:1;overflow:hidden;display:flex;flex-direction:column}::-webkit-scrollbar{width:4px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:#333;border-radius:2px}#popup-container{position:fixed;top:0;right:0;bottom:0;left:0;z-index:1000;pointer-events:none}#popup-container:not(:empty){pointer-events:auto}.popup-overlay{position:absolute;top:0;right:0;bottom:0;left:0;background:#000000b3;display:flex;align-items:center;justify-content:center}.popup-box{background:var(--bg-surface);border:1px solid var(--border-color);border-radius:var(--radius);padding:24px;min-width:280px;max-width:90vw}.popup-title{font-size:18px;font-weight:700;margin-bottom:12px}.popup-message{font-size:14px;color:var(--text-secondary);margin-bottom:20px;line-height:1.5}.popup-buttons{display:flex;gap:8px;justify-content:flex-end}.popup-btn{padding:8px 20px;border-radius:var(--radius-sm);border:none;font-size:14px;cursor:pointer}.popup-btn.primary{background:var(--accent);color:#fff}.popup-btn.secondary{background:#444;color:#fff}#demo-banner{position:fixed;top:calc(var(--safe-top) + 8px);left:50%;transform:translate(-50%);background:#ffc800e6;color:#000;padding:4px 16px;border-radius:20px;font-size:12px;font-weight:700;z-index:500;pointer-events:none}#ota-loading{position:fixed;top:0;right:0;bottom:0;left:0;background:var(--bg-main);display:flex;align-items:center;justify-content:center;z-index:9999}.ota-spinner{width:40px;height:40px;border:3px solid rgba(255,255,255,.2);border-top-color:#fff;border-radius:50%;animation:ota-spin .8s linear infinite}@keyframes ota-spin{to{transform:rotate(360deg)}}.screen{display:flex;flex-direction:column;height:100%;overflow:hidden;padding-top:var(--safe-top);padding-bottom:var(--safe-bottom)}.app-header{display:flex;align-items:center;justify-content:space-between;padding:12px 16px;border-bottom:1px solid var(--border-color);min-height:52px;flex-shrink:0}.app-title{font-size:20px;font-weight:700;letter-spacing:-.5px}.header-actions{display:flex;align-items:center;gap:8px}.header-btn{background:var(--accent);color:#fff;border:none;padding:6px 14px;border-radius:20px;font-size:13px;font-weight:600;cursor:pointer}.header-icon-btn{background:none;border:none;color:var(--text-primary);padding:6px;cursor:pointer;border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center}.header-avatar{width:32px;height:32px;border-radius:50%;background:var(--accent);color:#fff;border:none;font-size:14px;font-weight:600;cursor:pointer;display:flex;align-items:center;justify-content:center}.tag-filter-bar{display:flex;gap:8px;padding:12px 16px 4px;overflow-x:auto;flex-shrink:0;-webkit-overflow-scrolling:touch}.tag-filter-bar::-webkit-scrollbar{display:none}.tag-chip{background:var(--bg-surface);color:var(--text-secondary);border:1px solid var(--border-color);padding:4px 12px;border-radius:16px;font-size:13px;white-space:nowrap;cursor:pointer;flex-shrink:0;transition:background .2s,color .2s,border-color .2s}.tag-chip.active{background:var(--accent);color:#fff;border-color:var(--accent)}.character-grid{flex:1;overflow-y:auto;padding:12px 16px;display:grid;grid-template-columns:1fr 1fr;gap:12px;align-content:start}.character-card{background:var(--bg-card);border:1px solid var(--border-color);border-left:3px solid var(--card-accent, var(--accent));border-radius:var(--radius);padding:14px;cursor:pointer;transition:background .2s,border-color .2s;display:flex;flex-direction:column;gap:10px}.character-card:active{background:var(--bg-surface)}.card-avatar{width:40px;height:40px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:18px;font-weight:700;color:#fff;flex-shrink:0}.card-info{display:flex;flex-direction:column;gap:4px;min-width:0}.card-name{font-size:15px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.card-desc{font-size:12px;color:var(--text-secondary);line-height:1.4;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.card-stats{font-size:11px;color:var(--text-muted);margin-top:2px}.screen-chat{padding-bottom:0}.chat-header{display:flex;align-items:center;padding:10px 16px;border-bottom:1px solid var(--border-color);gap:12px;flex-shrink:0;padding-top:calc(var(--safe-top) + 10px)}.screen-chat .screen{padding-top:0}.chat-back-btn{background:none;border:none;color:var(--text-primary);padding:6px;cursor:pointer;display:flex;align-items:center;justify-content:center}.chat-header-info{display:flex;align-items:center;gap:10px;flex:1;min-width:0}.chat-header-avatar{width:32px;height:32px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:700;color:#fff;flex-shrink:0}.chat-header-name{font-size:16px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.chat-messages{flex:1;overflow-y:auto;padding:16px;display:flex;flex-direction:column;gap:12px}.chat-bubble-row{display:flex;gap:8px;max-width:85%}.chat-bubble-row.assistant-row{align-self:flex-start;align-items:flex-start}.bubble-avatar{width:28px;height:28px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:700;color:#fff;flex-shrink:0;margin-top:2px}.chat-bubble{padding:10px 14px;border-radius:16px;font-size:14px;line-height:1.5;word-break:break-word;white-space:pre-wrap}.bubble-assistant{background:var(--bg-surface);color:var(--text-primary);border-bottom-left-radius:4px}.bubble-user{background:var(--accent);color:#fff;align-self:flex-end;max-width:85%;border-bottom-right-radius:4px}.bubble-streaming{color:var(--text-muted)}.bubble-error{color:var(--danger)}.chat-input-area{display:flex;align-items:flex-end;gap:8px;padding:10px 16px;padding-bottom:calc(var(--safe-bottom) + 10px);border-top:1px solid var(--border-color);background:var(--bg-main);flex-shrink:0}.chat-input{flex:1;background:var(--bg-input);border:1px solid var(--border-input);border-radius:20px;padding:10px 16px;color:var(--text-primary);font-size:14px;font-family:inherit;resize:none;outline:none;max-height:120px;line-height:1.4}.chat-input::placeholder{color:var(--text-muted)}.chat-input:focus{border-color:var(--accent)}.chat-send-btn{width:40px;height:40px;border-radius:50%;background:var(--accent);color:#fff;border:none;cursor:pointer;display:flex;align-items:center;justify-content:center;flex-shrink:0;transition:opacity .2s}.chat-send-btn:disabled{opacity:.5;cursor:default}.login-form{flex:1;overflow-y:auto;padding:24px 16px;display:flex;flex-direction:column;gap:16px;max-width:400px;margin:0 auto;width:100%}.login-switch{display:flex;align-items:center;justify-content:center;gap:6px;font-size:14px}.btn-skip{text-align:center;margin-top:8px}.form-field{display:flex;flex-direction:column;gap:6px}.form-label{font-size:14px;font-weight:600;color:var(--text-secondary)}.form-help{font-size:12px;color:var(--text-muted);margin-top:-2px}.form-input{background:var(--bg-input);border:1px solid var(--border-input);border-radius:var(--radius-sm);padding:10px 14px;color:var(--text-primary);font-size:14px;font-family:inherit;outline:none;transition:border-color .2s}.form-input:focus{border-color:var(--accent)}.form-input::placeholder{color:var(--text-muted)}.form-textarea{resize:vertical;min-height:60px;line-height:1.5}.form-error{color:var(--danger);font-size:13px;padding:8px 12px;background:#ef44441a;border-radius:var(--radius-sm)}.btn-primary{background:var(--accent);color:#fff;border:none;padding:12px 20px;border-radius:var(--radius-sm);font-size:15px;font-weight:600;cursor:pointer;transition:background .2s;text-align:center}.btn-primary:disabled{opacity:.5;cursor:default}.btn-secondary{background:var(--bg-surface);color:var(--text-primary);border:1px solid var(--border-color);padding:10px 16px;border-radius:var(--radius-sm);font-size:14px;cursor:pointer}.btn-danger{background:transparent;color:var(--danger);border:1px solid var(--danger);padding:10px 16px;border-radius:var(--radius-sm);font-size:14px;cursor:pointer}.btn-link{background:none;border:none;color:var(--accent);font-size:14px;cursor:pointer;text-decoration:none;padding:0}.tab-bar{display:flex;border-bottom:1px solid var(--border-color);flex-shrink:0}.tab-btn{flex:1;padding:12px;background:none;border:none;border-bottom:2px solid transparent;color:var(--text-secondary);font-size:14px;font-weight:600;cursor:pointer;transition:color .2s,border-color .2s}.tab-btn.active{color:var(--accent);border-bottom-color:var(--accent)}.tab-content{flex:1;overflow-y:auto;padding:12px 16px}.list-item{display:flex;align-items:center;gap:12px;padding:12px;border-radius:var(--radius);cursor:pointer;transition:background .2s}.list-item:active{background:var(--bg-surface)}.list-avatar{width:40px;height:40px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:16px;font-weight:700;color:#fff;flex-shrink:0}.list-info{flex:1;min-width:0}.list-title{font-size:15px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.list-subtitle{font-size:13px;color:var(--text-muted)}.create-form{flex:1;overflow-y:auto;padding:16px;display:flex;flex-direction:column;gap:16px}.color-picker{display:flex;gap:10px;flex-wrap:wrap}.color-option{width:32px;height:32px;border-radius:50%;border:2px solid transparent;cursor:pointer;transition:border-color .2s,transform .2s}.color-option.selected{border-color:#fff;transform:scale(1.15)}.preview-section{padding:16px;background:var(--bg-surface);border-radius:var(--radius);border:1px solid var(--border-color)}.preview-bubble{margin-top:8px}.settings-content{flex:1;overflow-y:auto;padding:16px;display:flex;flex-direction:column;gap:24px}.settings-group{display:flex;flex-direction:column;gap:10px}.settings-label{font-size:14px;font-weight:600;color:var(--text-secondary)}.option-group{display:flex;gap:8px}.option-btn{flex:1;padding:10px;background:var(--bg-surface);border:1px solid var(--border-color);border-radius:var(--radius-sm);color:var(--text-secondary);font-size:14px;cursor:pointer;text-align:center;transition:background .2s,color .2s,border-color .2s}.option-btn.active{background:var(--accent);color:#fff;border-color:var(--accent)}.settings-version{margin-top:auto}.loading-indicator{display:flex;align-items:center;justify-content:center;padding:40px;color:var(--text-muted);font-size:14px;grid-column:1 / -1}.empty-state{display:flex;align-items:center;justify-content:center;padding:40px;color:var(--text-muted);font-size:14px;text-align:center;grid-column:1 / -1}.text-muted{color:var(--text-muted)}.chat-bubble{-webkit-user-select:text;user-select:text}@media (max-width: 320px){.character-grid{grid-template-columns:1fr}}