*{box-sizing:border-box;margin:0;padding:0}:root{--bg: #f5f6f8;--card: #ffffff;--text: #1a1a1a;--muted: #888;--primary: #ff6b4a;--primary-dark: #e8532f;--green: #2ecc71;--border: #eee;--radius: 14px}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Microsoft YaHei,sans-serif;background:var(--bg);color:var(--text);min-height:100vh;-webkit-font-smoothing:antialiased}#app{max-width:520px;margin:0 auto;padding:16px}h1.app-title{font-size:20px;font-weight:700;padding:8px 4px 16px}h2{font-size:15px;font-weight:600;margin-bottom:12px}h3{font-size:14px;font-weight:600}.card{background:var(--card);border-radius:var(--radius);padding:16px;margin-bottom:16px;box-shadow:0 2px 10px #0000000a}.summary-bar{display:flex;align-items:center;justify-content:space-between}.summary-kcal{font-size:34px;font-weight:800;color:var(--primary)}.summary-sub{font-size:13px;color:var(--muted)}.progress{height:8px;background:var(--border);border-radius:6px;overflow:hidden;margin-top:10px}.progress>div{height:100%;background:var(--primary);border-radius:6px;transition:width .4s}.tabs{display:flex;gap:8px;margin-bottom:16px}.tab{flex:1;text-align:center;padding:11px 0;border-radius:var(--radius);background:var(--card);font-size:14px;font-weight:600;color:var(--muted);cursor:pointer}.tab.active{background:var(--primary);color:#fff}.btn{display:inline-block;border:none;border-radius:10px;padding:12px 18px;font-size:14px;font-weight:600;cursor:pointer;width:100%;background:var(--primary);color:#fff}.btn:disabled{background:#ccc;cursor:not-allowed}.btn.ghost{background:var(--border);color:var(--text)}.upload-box{border:2px dashed #ccc;border-radius:var(--radius);padding:26px;text-align:center;color:var(--muted);cursor:pointer;transition:.2s}.upload-box:hover,.upload-box.drag{border-color:var(--primary);color:var(--primary)}.preview{max-width:100%;border-radius:12px;margin-top:12px;display:block}table{width:100%;border-collapse:collapse;font-size:13px;margin-top:8px}th,td{text-align:left;padding:8px 4px;border-bottom:1px solid var(--border)}th{color:var(--muted);font-weight:500}td.num{text-align:right;color:var(--muted)}.total-row td{font-weight:700;border-bottom:none}.cal-grid{display:grid;grid-template-columns:repeat(7,1fr);gap:4px}.cal-cell{aspect-ratio:1 / 1;display:flex;flex-direction:column;align-items:center;justify-content:center;border-radius:10px;font-size:13px;cursor:pointer;background:var(--bg);color:var(--text)}.cal-cell.empty{background:transparent;cursor:default}.cal-cell.marked{background:#fff1ec;color:var(--primary-dark);font-weight:700}.cal-cell.selected{background:var(--primary);color:#fff}.cal-cell.today{border:1.5px solid var(--primary)}.cal-dot{width:5px;height:5px;background:var(--primary);border-radius:50%;margin-top:2px}.cal-nav{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}.cal-nav button{border:none;background:var(--card);width:34px;height:34px;border-radius:10px;font-size:16px;cursor:pointer;box-shadow:0 1px 4px #0000000d}.spinner{width:22px;height:22px;border:3px solid #eee;border-top-color:var(--primary);border-radius:50%;animation:spin .8s linear infinite;margin:16px auto}@keyframes spin{to{transform:rotate(360deg)}}.toast{position:fixed;left:50%;bottom:30px;transform:translate(-50%);background:#333;color:#fff;padding:12px 20px;border-radius:12px;font-size:14px;z-index:99;opacity:.95;box-shadow:0 4px 16px #0003}.muted{color:var(--muted);font-size:13px}.row-between{display:flex;justify-content:space-between;align-items:center}.meal-item{padding:10px 0;border-bottom:1px solid var(--border)}.meal-item:last-child{border-bottom:none}.hint{font-size:12px;color:var(--muted);margin-top:10px;line-height:1.6}.user-bar{display:flex;align-items:center;justify-content:flex-end;gap:10px;margin-bottom:12px;font-size:14px}.banner{background:#fff7e6}input:focus{outline:2px solid var(--primary);outline-offset:-1px}