*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}html,body,#root{margin:0;padding:0;font-family:-apple-system,BlinkMacSystemFont,PingFang SC,Microsoft YaHei,sans-serif;background:#f5f7fa;color:#1f2937;-webkit-font-smoothing:antialiased;overscroll-behavior-y:contain}body{min-height:100vh;min-height:100dvh;padding-bottom:env(safe-area-inset-bottom);padding-top:env(safe-area-inset-top)}button{font-family:inherit}.hidden{display:none!important}.loading-screen{min-height:100vh;min-height:100dvh;display:flex;align-items:center;justify-content:center}.loading-text{color:#6b7280;font-size:14px}.join-screen{min-height:100vh;min-height:100dvh;display:flex;align-items:center;justify-content:center;padding:24px}.join-container{width:100%;max-width:360px;background:#fff;border-radius:16px;padding:32px 24px;box-shadow:0 4px 20px #0000000d}.join-container h1{margin:0 0 24px;font-size:24px;text-align:center}.hint{text-align:center;color:#6b7280;font-size:14px;margin:0 0 12px}.join-container input{width:100%;padding:12px 14px;border:1px solid #e5e7eb;border-radius:10px;font-size:16px;margin-bottom:12px;background:#f9fafb;font-family:inherit}.join-container input:focus{outline:none;border-color:#3b82f6;background:#fff}.btn-primary,.btn-secondary,.text-danger{width:100%;padding:12px 16px;border:none;border-radius:10px;font-size:15px;cursor:pointer;margin-top:4px;font-family:inherit}.btn-primary{background:#3b82f6;color:#fff}.btn-primary:active{background:#2563eb}.btn-primary:disabled{background:#93c5fd}.btn-secondary{background:#f3f4f6;color:#374151}.btn-secondary:active{background:#e5e7eb}.btn-secondary:disabled{color:#9ca3af}.text-danger{background:none;color:#ef4444;padding:8px;margin-top:12px}.divider{text-align:center;color:#9ca3af;font-size:12px;margin:16px 0;position:relative}.divider:before,.divider:after{content:"";position:absolute;top:50%;width:40%;height:1px;background:#e5e7eb}.divider:before{left:0}.divider:after{right:0}.error{color:#ef4444;font-size:13px;text-align:center;margin:12px 0 0}.main-screen{display:flex;flex-direction:column;min-height:100vh;min-height:100dvh}header{background:#fff;padding:16px 20px;border-bottom:1px solid #f0f0f0;position:sticky;top:0;z-index:10}.family-name{font-size:18px;font-weight:600;color:#111827}.device-name{font-size:12px;color:#9ca3af;margin-top:2px}main{flex:1;padding:20px 20px 80px;max-width:600px;margin:0 auto;width:100%}.checkin{margin-bottom:24px}.checkin-row{display:grid;grid-template-columns:1fr 1fr 1fr;gap:10px}.checkin-btn{background:#fff;border:none;border-radius:16px;padding:24px 8px;display:flex;flex-direction:column;align-items:center;gap:6px;cursor:pointer;box-shadow:0 2px 8px #0000000a;transition:transform .1s,box-shadow .1s;font-family:inherit}.checkin-btn:active{transform:scale(.96);box-shadow:0 1px 4px #0000000f}.checkin-btn:disabled{opacity:.6}.checkin-btn .emoji{font-size:32px}.checkin-btn .label{font-size:14px;color:#374151;font-weight:500}.btn-pee{background:linear-gradient(135deg,#dbeafe,#bfdbfe)}.btn-poop{background:linear-gradient(135deg,#fed7aa,#fdba74)}.btn-mixed{background:linear-gradient(135deg,#e9d5ff,#d8b4fe)}.checkin-hint{text-align:center;color:#9ca3af;font-size:12px;margin:12px 0 0}.queue-badge{color:#f59e0b}.offline-hint{color:#ef4444}.stats{display:grid;grid-template-columns:1fr 1fr 1fr;gap:10px;margin-bottom:24px}.stat-card{background:#fff;border-radius:12px;padding:14px 10px;text-align:center;box-shadow:0 2px 8px #0000000a}.stat-label{font-size:11px;color:#9ca3af;margin-bottom:4px}.stat-value{font-size:20px;font-weight:600;color:#111827}.records h2{font-size:15px;font-weight:600;margin:0 0 12px;color:#374151}.records-list{list-style:none;padding:0;margin:0;background:#fff;border-radius:12px;overflow:hidden;box-shadow:0 2px 8px #0000000a}.record-item{display:flex;align-items:center;padding:14px 16px;border-bottom:1px solid #f3f4f6}.record-item:last-child{border-bottom:none}.record-icon{width:36px;height:36px;border-radius:50%;display:flex;align-items:center;justify-content:center;margin-right:12px;font-size:18px;flex-shrink:0}.record-icon.pee{background:#dbeafe}.record-icon.poop{background:#fed7aa}.record-icon.mixed{background:#e9d5ff}.record-body{flex:1;min-width:0}.record-type{font-size:14px;font-weight:500;color:#111827}.record-time{font-size:12px;color:#9ca3af;margin-top:2px}.record-delete{background:none;border:none;color:#9ca3af;font-size:22px;line-height:1;padding:4px 8px;cursor:pointer}.record-delete:active{color:#ef4444}.empty{background:#fff;border-radius:12px;padding:40px 20px;text-align:center;color:#9ca3af;font-size:14px;box-shadow:0 2px 8px #0000000a}.bottom-nav{position:fixed;bottom:0;left:0;right:0;background:#fff;border-top:1px solid #f0f0f0;display:flex;padding-bottom:env(safe-area-inset-bottom);z-index:20}.nav-btn{flex:1;background:none;border:none;padding:14px;font-size:14px;color:#6b7280;cursor:pointer}.nav-btn.active{color:#3b82f6;font-weight:500}.overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#0006;z-index:100;display:flex;align-items:flex-end;justify-content:center;animation:fadeIn .2s}.overlay-content{background:#fff;width:100%;max-width:600px;max-height:90vh;border-radius:16px 16px 0 0;overflow-y:auto;padding:20px;padding-bottom:calc(20px + env(safe-area-inset-bottom));animation:slideUp .25s}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideUp{0%{transform:translateY(100%)}to{transform:translateY(0)}}.overlay-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px}.overlay-header h2{margin:0;font-size:18px}.close-btn{background:none;border:none;font-size:28px;line-height:1;color:#9ca3af;cursor:pointer;padding:0 8px}.settings-section{margin-bottom:24px}.settings-section h3{font-size:14px;margin:0 0 8px;color:#374151}.settings-hint{font-size:12px;color:#9ca3af;margin:8px 0;line-height:1.5}.info-row{display:flex;justify-content:space-between;padding:8px 0;font-size:14px;color:#6b7280}.info-value{color:#111827;font-weight:500}.progress-bar{height:6px;background:#e5e7eb;border-radius:3px;overflow:hidden;margin-top:6px}.progress-fill{height:100%;background:#3b82f6;transition:width .3s}.progress-fill.warn{background:#f59e0b}.invite-result{margin-top:12px}.invite-token,.invite-url{background:#f3f4f6;padding:10px 12px;border-radius:8px;font-family:ui-monospace,SF Mono,Menlo,monospace;font-size:12px;word-break:break-all;margin-bottom:8px}.devices-list{list-style:none;padding:0;margin:8px 0 0;background:#f9fafb;border-radius:8px;overflow:hidden}.device-item{display:flex;align-items:center;justify-content:space-between;padding:12px;border-bottom:1px solid #f3f4f6;font-size:14px;gap:8px}.device-item:last-child{border-bottom:none}.device-role{font-size:11px;color:#6b7280;margin-top:2px}.device-self{color:#3b82f6;font-size:11px}.device-revoke{background:none;border:1px solid #fecaca;color:#ef4444;padding:4px 10px;border-radius:6px;font-size:12px;cursor:pointer;flex-shrink:0}.ai-status{padding:10px 12px;border-radius:8px;background:#f3f4f6;font-size:13px;color:#6b7280}.ai-status.enabled{background:#d1fae5;color:#065f46}.ai-status.disabled{background:#fee2e2;color:#991b1b}.toast{position:fixed;bottom:80px;left:50%;transform:translate(-50%);background:#000000d9;color:#fff;padding:10px 18px;border-radius:8px;font-size:14px;z-index:200;animation:toastIn .2s;max-width:80%;text-align:center}@keyframes toastIn{0%{opacity:0;transform:translate(-50%,10px)}to{opacity:1;transform:translate(-50%)}}.checkin-extra{margin-top:12px;display:flex;justify-content:center}.add-photo-btn{background:#f3f4f6;border:1px dashed #d1d5db;color:#6b7280;padding:8px 16px;border-radius:8px;font-size:13px;cursor:pointer;font-family:inherit}.add-photo-btn:active{background:#e5e7eb}.add-photo-btn:disabled{opacity:.6}.pending-photo{position:relative;display:flex;flex-direction:column;align-items:center;gap:6px}.pending-photo img{max-width:100%;max-height:160px;border-radius:8px;box-shadow:0 2px 8px #0000001a}.pending-photo-remove{position:absolute;top:-6px;right:-6px;width:24px;height:24px;border-radius:50%;border:none;background:#ef4444;color:#fff;font-size:16px;line-height:1;cursor:pointer;box-shadow:0 2px 6px #0003}.pending-photo-hint{font-size:12px;color:#6b7280}.record-item.clickable{cursor:pointer}.record-item.clickable:active{background:#f9fafb}.has-photo,.has-ai{font-size:12px}.detail-time{color:#6b7280;font-size:13px;margin-bottom:12px}.detail-photo{margin-bottom:12px;background:#000;border-radius:8px;overflow:hidden}.detail-photo img{width:100%;max-height:60vh;object-fit:contain;display:block}.detail-note{background:#f9fafb;padding:10px 12px;border-radius:8px;font-size:14px;margin-bottom:12px;word-break:break-word}.detail-actions{display:flex;flex-direction:column;gap:8px;margin-top:16px}.ai-tags{background:linear-gradient(135deg,#ede9fe,#ddd6fe);border-radius:12px;padding:14px;margin:12px 0}.ai-tags h3{margin:0 0 10px;font-size:14px;color:#5b21b6}.ai-tag-row{display:flex;align-items:center;gap:8px;margin-bottom:8px;font-size:13px}.ai-tag-label{color:#6b7280;min-width:40px}.ai-tag-value{color:#111827;font-weight:500}.ai-tag-chips{display:flex;flex-wrap:wrap;gap:6px}.ai-chip{background:#fff;color:#5b21b6;padding:2px 8px;border-radius:999px;font-size:12px}.ai-summary{font-size:13px;color:#4b5563;line-height:1.5;margin:8px 0 0}.ai-disclaimer{font-size:11px;color:#9ca3af;text-align:center;margin:10px 0 0}.chart-card{background:#fff;border-radius:12px;padding:16px;margin-bottom:16px;box-shadow:0 2px 8px #0000000a}.chart-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px}.chart-header h3{margin:0;font-size:14px;color:#374151}.chart-legend{display:flex;gap:10px;font-size:11px;color:#6b7280}.chart-legend span{display:flex;align-items:center;gap:4px}.dot{display:inline-block;width:8px;height:8px;border-radius:50%}.dot-pee{background:#60a5fa}.dot-poop{background:#fb923c}.dot-mixed{background:#c084fc}.chart{display:flex;align-items:flex-end;justify-content:space-between;height:120px;gap:6px;margin-bottom:8px}.chart-bar-group{flex:1;display:flex;flex-direction:column;align-items:center;min-width:0}.chart-bar-stack{width:100%;max-width:32px;display:flex;flex-direction:column-reverse;border-radius:4px 4px 0 0;overflow:hidden;background:#f3f4f6;min-height:4px;justify-content:flex-end}.chart-bar-seg{width:100%}.seg-pee{background:#60a5fa}.seg-poop{background:#fb923c}.seg-mixed{background:#c084fc}.chart-bar-label{font-size:10px;color:#9ca3af;margin-top:4px;white-space:nowrap}.ai-summary-btn{margin-top:12px}.days-selector{display:flex;gap:8px;margin:12px 0}.days-btn{flex:1;padding:8px;border:1px solid #e5e7eb;background:#fff;border-radius:8px;font-size:13px;cursor:pointer;font-family:inherit}.days-btn.active{background:#3b82f6;color:#fff;border-color:#3b82f6}.ai-result{background:linear-gradient(135deg,#ecfdf5,#d1fae5);border-radius:12px;padding:14px;margin-bottom:12px}.ai-result p{margin:0 0 8px;font-size:14px;line-height:1.6;color:#064e3b}.ai-result p:last-child{margin-bottom:0}.stats-row{display:grid;grid-template-columns:1fr 1fr 1fr;gap:10px;margin-bottom:16px}