:root{--bg: #0a0a0a;--surface: #141414;--surface-2: #1f1f1f;--border: #2a2a2a;--text: #ececec;--text-dim: #9a9a9a;--user-bg: #1a2638;--user-border: #2a3a55;--ai-bg: #1c1c1c;--ai-border: #2a2a2a;--primary: #3b82f6;--primary-hover: #2563eb;--danger: #b91c1c;--warn: #b45309;--bar-bg: rgba(10, 10, 10, .92);--safe-top: env(safe-area-inset-top, 0px);--safe-bottom: env(safe-area-inset-bottom, 0px);--app-height: 100dvh}*{box-sizing:border-box}html,body,#root{height:100%;margin:0;padding:0}body{background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif;font-size:16px;line-height:1.6;-webkit-tap-highlight-color:transparent;overscroll-behavior:none}input,textarea,button{font:inherit;color:inherit;background:transparent;border:none;outline:none;-webkit-appearance:none}.app{display:flex;flex-direction:column;height:var(--app-height);padding-top:var(--safe-top)}.loading{display:flex;align-items:center;justify-content:center;height:100dvh;color:var(--text-dim)}.error-banner{background:var(--danger);color:#fff;padding:10px 14px;font-size:14px;display:flex;justify-content:space-between;align-items:center;cursor:pointer}.error-dismiss{font-size:20px;line-height:1;padding-left:12px}.toast{position:fixed;top:calc(var(--safe-top) + 16px);left:50%;transform:translate(-50%);background:#323232f2;color:#fff;padding:10px 18px;border-radius:999px;font-size:14px;z-index:100;pointer-events:none;animation:toast-in .18s ease}@keyframes toast-in{0%{opacity:0;transform:translate(-50%,-8px)}to{opacity:1;transform:translate(-50%)}}.tab-content{flex:1;min-height:0;display:flex;flex-direction:column;overflow:hidden}.text-tab-wrap{flex:1;display:flex;flex-direction:column;min-height:0}.text-header{padding:4px 6px 4px 14px;font-size:12px;color:var(--text-dim);background:var(--bg);border-bottom:1px solid var(--border);flex:0 0 auto;display:flex;align-items:center;justify-content:space-between}.text-more-btn{width:36px;height:30px;border-radius:6px;font-size:18px;line-height:1;color:var(--text-dim);background:transparent;cursor:pointer;border:none;padding:0}.text-more-btn:active{background:var(--surface);color:var(--text)}.text-body{flex:1;min-height:0;display:flex}.text-tab{flex:1;overflow-y:auto;padding:12px;display:flex;flex-direction:column;gap:10px;-webkit-overflow-scrolling:touch;min-width:0}.text-index{width:34px;flex:0 0 34px;overflow-y:auto;display:flex;flex-direction:column;gap:2px;padding:8px 4px 8px 0;border-left:1px solid var(--border);background:var(--bg);-webkit-overflow-scrolling:touch}.idx-item{min-height:26px;border-radius:6px;font-size:11px;font-weight:500;color:var(--text-dim);background:transparent;cursor:pointer;padding:0;text-align:center;border:none;flex:0 0 auto}.idx-item:active{background:var(--surface)}.idx-active{background:var(--primary);color:#fff}.idx-preview{position:fixed;transform:translateY(-50%);max-width:240px;padding:10px 12px;background:#1e1e1efa;color:var(--text);font-size:13px;line-height:1.5;border:1px solid var(--border);border-radius:10px;pointer-events:none;z-index:150;box-shadow:0 6px 18px #00000080;white-space:pre-wrap;word-break:break-word;animation:toast-in .12s ease}.bubble{position:relative;border-radius:12px;border:1px solid var(--border);padding:4px}.bubble-user{background:var(--user-bg);border-color:var(--user-border)}.bubble-assistant{background:var(--ai-bg);border-color:var(--ai-border)}.bubble textarea{width:100%;min-height:1.6em;padding:10px 36px 10px 12px;resize:none;line-height:1.65;font-size:16px;border-radius:10px;color:var(--text);background:transparent;overflow:hidden;field-sizing:content}.bubble textarea::placeholder{color:var(--text-dim)}.bubble-menu-btn{position:absolute;top:6px;right:6px;width:28px;height:28px;border-radius:8px;font-size:18px;line-height:1;color:var(--text-dim);background:transparent;cursor:pointer}.bubble-menu-btn:active{background:#ffffff0f}.bubble-menu-btn:disabled{opacity:.3;cursor:not-allowed}.sheet-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;background:#00000080;display:flex;align-items:flex-end;z-index:200;animation:fade-in .15s ease}@keyframes fade-in{0%{opacity:0}to{opacity:1}}.sheet{width:100%;background:var(--surface);border-radius:16px 16px 0 0;padding:8px 8px calc(8px + var(--safe-bottom));display:flex;flex-direction:column;gap:4px;animation:sheet-up .2s ease}@keyframes sheet-up{0%{transform:translateY(100%)}to{transform:translateY(0)}}.sheet-item{padding:16px;border-radius:10px;font-size:16px;text-align:center;color:var(--text);background:var(--surface-2);cursor:pointer}.sheet-item:active{background:var(--border)}.sheet-item-danger{color:#ef4444}.sheet-cancel{margin-top:4px;background:transparent;color:var(--text-dim)}.export-modal{width:100%;max-height:80vh;background:var(--surface);border-radius:16px 16px 0 0;padding:14px 14px calc(14px + var(--safe-bottom));display:flex;flex-direction:column;gap:10px;animation:sheet-up .2s ease}.export-modal-hint{font-size:13px;color:var(--text-dim);line-height:1.5}.export-modal-text{flex:1;min-height:240px;width:100%;background:var(--bg);border:1px solid var(--border);border-radius:10px;padding:12px;color:var(--text);font-size:14px;line-height:1.6;resize:none;-webkit-user-select:text;user-select:text}.prompt-tab{flex:1;display:flex;padding:12px}.prompt-editor{flex:1;width:100%;background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:14px;font-size:15px;line-height:1.65;resize:none}.settings-tab{flex:1;overflow-y:auto;padding:16px;display:flex;flex-direction:column;gap:16px}.field{display:flex;flex-direction:column;gap:6px}.field span{font-size:13px;color:var(--text-dim)}.field input{background:var(--surface);border:1px solid var(--border);border-radius:10px;padding:12px 14px;font-size:16px;color:var(--text)}.field input:focus{border-color:var(--primary)}.section-title{font-size:12px;color:var(--text-dim);text-transform:uppercase;letter-spacing:.06em;margin-top:8px}.section-title.danger{color:#ef4444}.row-buttons{display:grid;grid-template-columns:1fr 1fr;gap:8px}.action-bar{display:grid;grid-template-columns:1.5fr 1fr 1fr .9fr;gap:6px;padding:8px 10px 6px;background:var(--bar-bg);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-top:1px solid var(--border)}.btn{min-height:44px;border-radius:10px;background:var(--surface-2);color:var(--text);padding:0 8px;font-size:14px;font-weight:500;cursor:pointer;transition:background .12s ease;border:1px solid var(--border)}.btn:active{background:var(--surface)}.btn:disabled{opacity:.4;cursor:not-allowed}.btn-primary{background:var(--primary);border-color:var(--primary);color:#fff}.btn-primary:active{background:var(--primary-hover)}.btn-generating{background:var(--warn);border-color:var(--warn);color:#fff}.btn-danger{background:var(--danger);border-color:var(--danger);color:#fff}.btn-undo{font-size:13px;letter-spacing:.02em}.tab-bar{display:grid;grid-template-columns:repeat(3,1fr);background:var(--bar-bg);border-top:1px solid var(--border);padding-bottom:var(--safe-bottom)}.tab{padding:12px 0;font-size:14px;color:var(--text-dim);background:transparent;border:none;cursor:pointer}.tab.active{color:var(--text);font-weight:600;position:relative}.tab.active:before{content:"";position:absolute;top:0;left:30%;right:30%;height:2px;background:var(--primary);border-radius:1px}