:root{--bg: #eef2f7;--card: #ffffff;--text: #0f172a;--muted: #64748b;--accent: #0f766e;--green: #10b981;--danger: #ef4444;--amber: #f59e0b;--border: #e2e8f0;--radius: 18px;--shadow: 0 4px 18px rgba(15, 23, 42, .06)}*{box-sizing:border-box}html,body,#root{height:100%}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,PingFang SC,Helvetica Neue,Microsoft YaHei,sans-serif;background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased;-webkit-tap-highlight-color:transparent}.app{max-width:480px;margin:0 auto;height:100%;display:flex;flex-direction:column;background:var(--bg)}.app-main{flex:1;min-height:0;display:flex;flex-direction:column;overflow-y:auto;padding:16px 16px calc(80px + env(safe-area-inset-bottom))}.page{display:flex;flex-direction:column;gap:14px}.chat-page{flex:1;min-height:0}.page-head h1{font-size:22px;margin:4px 0 0}.page-head p{margin:2px 0 0}.muted{color:var(--muted)}.small{font-size:12px}.card{background:var(--card);border-radius:var(--radius);padding:16px;box-shadow:var(--shadow)}.card-title{font-size:15px;font-weight:700;margin-bottom:12px}.bmi-row{display:flex;gap:16px;align-items:center}.bmi-main{display:flex;flex-direction:column;align-items:center;gap:2px;padding-right:16px;border-right:1px solid var(--border);min-width:96px}.bmi-num{font-size:40px;font-weight:800;color:var(--accent);line-height:1}.bmi-unit{font-size:12px;color:var(--muted)}.badge{color:#fff;font-size:12px;padding:2px 10px;border-radius:999px;margin-top:6px}.profile-grid{flex:1;display:grid;grid-template-columns:1fr 1fr;gap:10px}.pv{display:flex;flex-direction:column}.pv-label{font-size:11px;color:var(--muted)}.pv-val{font-size:16px;font-weight:700}.cal-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin-bottom:12px}.cal-stat{display:flex;flex-direction:column;align-items:center;background:#f8fafc;border-radius:12px;padding:10px 4px}.cal-num{font-size:20px;font-weight:800;color:var(--accent)}.cal-stat.over .cal-num{color:var(--danger)}.cal-label{font-size:11px;color:var(--muted);margin-top:2px}.bar{height:10px;border-radius:999px;background:#eef2f7;overflow:hidden}.bar-fill{height:100%;border-radius:999px;transition:width .3s ease}.bar-hint{font-size:12px;color:var(--muted);margin-top:8px}.quick-actions{display:flex;gap:10px;margin-top:14px}.quick-actions .btn{flex:1}.btn{border:1px solid var(--border);background:#fff;color:var(--text);font-size:14px;padding:11px 14px;border-radius:12px;cursor:pointer;font-weight:600}.btn:active{transform:scale(.98)}.btn:disabled{opacity:.5}.btn-primary{background:var(--accent);border-color:var(--accent);color:#fff}.btn-danger{color:var(--danger);border-color:#fecaca;background:#fff5f5}.btn-block{width:100%;margin-top:12px}.entry-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:8px}.entry{display:flex;align-items:center;gap:10px;padding:10px 12px;background:#f8fafc;border-radius:12px}.entry-icon{font-size:18px}.entry-name{flex:1;font-size:14px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.entry-cal{font-weight:700;font-size:14px}.entry-cal.food{color:var(--green)}.entry-cal.exercise{color:var(--amber)}.entry-del{border:none;background:none;color:#cbd5e1;font-size:14px;cursor:pointer;padding:4px}.entry-del:hover{color:var(--danger)}.empty{text-align:center;padding:18px 0;font-size:13px}.seg{display:flex;background:#f1f5f9;border-radius:12px;padding:4px;gap:4px}.seg-btn{flex:1;border:none;background:transparent;padding:9px;border-radius:9px;font-size:14px;font-weight:600;color:var(--muted);cursor:pointer}.seg-btn.active{background:#fff;color:var(--accent);box-shadow:0 1px 4px #00000014}.form{display:flex;flex-direction:column;gap:12px}.form-row{display:flex;gap:10px}.form-row .field{flex:1}.field{display:flex;flex-direction:column;gap:6px}.field label{font-size:12px;color:var(--muted);font-weight:600}.field input,.field select{border:1px solid var(--border);border-radius:12px;padding:11px 12px;font-size:15px;background:#fff;color:var(--text);width:100%;outline:none}.field input:focus,.field select:focus{border-color:var(--accent)}.calc-note{margin-top:12px;font-size:12px;color:var(--muted);background:#f0fdfa;padding:10px 12px;border-radius:10px;line-height:1.6}.calc-note b{color:var(--accent)}.banner{background:#fffbeb;color:#92400e;border:1px solid #fde68a;border-radius:12px;padding:10px 12px;font-size:13px;cursor:pointer}.chat-box{flex:1;min-height:0;overflow-y:auto;display:flex;flex-direction:column;gap:12px;padding-bottom:8px}.chat-empty{text-align:center;color:var(--muted);padding:24px 8px}.chat-empty .chips{display:flex;flex-direction:column;gap:8px;margin-top:14px}.chip{border:1px solid var(--border);background:#fff;border-radius:12px;padding:10px 12px;font-size:13px;text-align:left;color:var(--text);cursor:pointer}.chip:active{background:#f1f5f9}.msg{display:flex;flex-direction:column}.msg.user{align-items:flex-end}.msg.assistant{align-items:flex-start}.msg-bubble{max-width:84%;padding:11px 14px;border-radius:16px;font-size:14px;line-height:1.55;white-space:pre-wrap;word-break:break-word}.msg.user .msg-bubble{background:var(--accent);color:#fff;border-bottom-right-radius:4px}.msg.assistant .msg-bubble{background:#fff;border:1px solid var(--border);border-bottom-left-radius:4px}.msg-card{margin-top:6px;width:100%;max-width:92%;background:#fff;border:1px solid var(--border);border-radius:14px;padding:12px}.msg-card-head{display:flex;justify-content:space-between;font-weight:700;font-size:13px;margin-bottom:8px}.msg-card-total{color:var(--accent)}.msg-card-item{display:flex;justify-content:space-between;font-size:13px;padding:5px 0;border-bottom:1px dashed var(--border)}.msg-card-item:last-of-type{border-bottom:none}.msg-card-reco{margin-top:8px;font-size:13px;background:#f0fdfa;padding:10px;border-radius:10px;color:#134e4a;line-height:1.6}.msg-card-note{margin-top:8px;font-size:11px;color:var(--muted)}.typing{display:inline-flex;gap:4px;align-items:center}.typing span{width:7px;height:7px;border-radius:50%;background:#94a3b8;animation:blink 1.2s infinite}.typing span:nth-child(2){animation-delay:.2s}.typing span:nth-child(3){animation-delay:.4s}@keyframes blink{0%,60%,to{opacity:.3}30%{opacity:1}}.chat-input{display:flex;gap:8px;padding-top:10px}.chat-input input{flex:1;border:1px solid var(--border);border-radius:14px;padding:12px 14px;font-size:15px;outline:none}.chat-input input:focus{border-color:var(--accent)}.chart{width:100%}.tabbar{position:fixed;bottom:0;left:50%;transform:translate(-50%);width:100%;max-width:480px;display:flex;background:#ffffffeb;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-top:1px solid var(--border);padding:6px 4px calc(6px + env(safe-area-inset-bottom));z-index:10}.tabbar-item{flex:1;border:none;background:none;display:flex;flex-direction:column;align-items:center;gap:2px;padding:6px 0;color:#94a3b8;cursor:pointer}.tabbar-item.active{color:var(--accent)}.tabbar-icon{font-size:20px}.tabbar-label{font-size:11px;font-weight:600}