.diet-app{--bg:#f4f5f7;--card:#fff;--ink:#16181d;--muted:#6b7280;--brand:#2563eb;--brand-strong:#1d4ed8;--brand-soft:#e8effd;--line:#e5e7eb;--shadow:0 1px 2px #1018280f;background:var(--bg);color:var(--ink);min-height:100vh;font-family:-apple-system,Segoe UI,PingFang SC,Microsoft YaHei,sans-serif}.diet-app .hero{color:#fff;border-bottom:4px solid var(--brand);background:#16181d;padding:64px 20px}.diet-app .hero-inner{max-width:760px;margin:0 auto}.diet-app .hero-eyebrow{letter-spacing:3px;text-transform:uppercase;color:#93b4f5;margin:0 0 12px;font-size:12px;font-weight:600}.diet-app .hero-title{letter-spacing:-.5px;margin:0 0 12px;font-size:32px;font-weight:800}.diet-app .hero-sub{color:#c7ccd6;max-width:520px;margin:0;font-size:15px;line-height:1.7}.diet-app .main{max-width:760px;margin:0 auto;padding:32px 20px 48px}.diet-app .card{background:var(--card);border:1px solid var(--line);box-shadow:var(--shadow);border-radius:4px;margin-bottom:24px;padding:28px}.diet-app .card-head{border-bottom:1px solid var(--line);justify-content:space-between;align-items:flex-start;gap:12px;margin-bottom:20px;padding-bottom:14px;display:flex}.diet-app .card-title{letter-spacing:.2px;margin:0 0 4px;font-size:17px;font-weight:700}.diet-app .card-desc{color:var(--muted);margin:0;font-size:13px;line-height:1.6}.diet-app .field-grid{grid-template-columns:repeat(2,1fr);gap:16px;margin-bottom:18px;display:grid}.diet-app .field{flex-direction:column;gap:6px;display:flex}.diet-app .field-label{color:var(--muted);letter-spacing:.5px;text-transform:uppercase;font-size:12px;font-weight:600}.diet-app .input-wrap{border:1px solid var(--line);background:#fff;border-radius:2px;align-items:center;transition:border-color .15s,box-shadow .15s;display:flex;overflow:hidden}.diet-app .input-wrap:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px #2563eb1f}.diet-app .input-wrap input{min-width:0;color:var(--ink);font-variant-numeric:tabular-nums;background:0 0;border:none;outline:none;flex:1;padding:10px 12px;font-size:15px}.diet-app .input-unit{color:var(--muted);white-space:nowrap;padding:0 12px;font-size:12px}.diet-app .segmented{border:1px solid var(--line);border-radius:2px;display:flex;overflow:hidden}.diet-app .segmented button{color:var(--muted);cursor:pointer;background:#fff;border:none;flex:1;padding:10px 0;font-size:14px;font-weight:600;transition:background .12s,color .12s}.diet-app .segmented button.seg-on{background:var(--ink);color:#fff}.diet-app .activity-list{grid-template-columns:1fr 1fr;gap:6px;display:grid}.diet-app .activity-option{border:1px solid var(--line);color:var(--ink);cursor:pointer;background:#fff;border-radius:2px;align-items:center;gap:8px;padding:9px 10px;font-size:13px;transition:border-color .12s;display:flex}.diet-app .activity-option:has(input:checked){border-color:var(--brand);background:var(--brand-soft);font-weight:600}.diet-app .activity-option input{accent-color:var(--brand)}.diet-app .results{border:1px solid var(--brand);background:var(--brand-soft);border-radius:4px;grid-template-columns:1fr 1fr;align-items:center;gap:16px;margin-top:20px;padding:20px;display:grid}.diet-app .result-primary{border-right:1px solid #2563eb40;flex-direction:column;align-items:flex-start;padding-right:16px;display:flex}.diet-app .result-num{color:var(--brand-strong);font-variant-numeric:tabular-nums;font-size:40px;font-weight:800;line-height:1.1}.diet-app .result-unit{color:var(--brand-strong);font-size:12px}.diet-app .result-label{color:var(--ink);margin-top:4px;font-size:13px;font-weight:700}.diet-app .result-grid{flex-direction:column;gap:10px;display:flex}.diet-app .result-item{justify-content:space-between;align-items:baseline;gap:8px;display:flex}.diet-app .result-item-num{color:var(--brand-strong);font-variant-numeric:tabular-nums;font-size:18px;font-weight:800}.diet-app .result-item-label{color:var(--muted);text-align:right;font-size:12px}.diet-app .result-note{color:var(--muted);border-top:1px solid #2563eb33;grid-column:1/-1;margin:0;padding-top:12px;font-size:12px;line-height:1.6}.diet-app .hint{color:var(--muted);background:var(--bg);border:1px dashed var(--line);text-align:center;border-radius:2px;padding:14px;font-size:13px}.diet-app .clear-btn{border:1px solid var(--line);color:var(--muted);cursor:pointer;background:#fff;border-radius:2px;padding:6px 12px;font-size:12px}.diet-app .clear-btn:hover{color:#ef4444;border-color:#ef4444}.diet-app .search-wrap{margin-bottom:12px}.diet-app .search-input{border:1px solid var(--line);width:100%;color:var(--ink);border-radius:2px;outline:none;padding:11px 12px;font-size:14px;transition:border-color .12s,box-shadow .12s}.diet-app .search-input:focus{border-color:var(--brand);box-shadow:0 0 0 3px #2563eb1f}.diet-app .category-row{flex-wrap:wrap;gap:6px;margin-bottom:14px;display:flex}.diet-app .category-row button{border:1px solid var(--line);color:var(--muted);cursor:pointer;background:#fff;border-radius:2px;padding:6px 12px;font-size:12px;transition:all .12s}.diet-app .category-row button.cat-on{background:var(--ink);border-color:var(--ink);color:#fff;font-weight:600}.diet-app .food-list{grid-template-columns:1fr 1fr;gap:8px;max-height:420px;padding-right:2px;display:grid;overflow-y:auto}.diet-app .food-item{border:1px solid var(--line);cursor:pointer;text-align:left;background:#fff;border-radius:2px;flex-direction:column;align-items:flex-start;gap:4px;padding:12px 14px;transition:border-color .12s,box-shadow .12s;display:flex;position:relative}.diet-app .food-item:hover{border-color:var(--brand);box-shadow:0 0 0 2px #2563eb1a}.diet-app .food-name{color:var(--ink);padding-right:24px;font-size:14px;font-weight:700}.diet-app .food-meta{color:var(--muted);font-size:12px;line-height:1.5}.diet-app .food-add{background:var(--brand-soft);width:22px;height:22px;color:var(--brand-strong);text-align:center;border-radius:2px;font-size:14px;font-weight:700;line-height:22px;position:absolute;top:10px;right:10px}.diet-app .progress-wrap{margin-bottom:16px}.diet-app .progress-bar{background:var(--line);border-radius:2px;height:8px;overflow:hidden}.diet-app .progress-fill{background:var(--brand);height:100%;transition:width .3s}.diet-app .progress-text{color:var(--muted);margin:8px 0 0;font-size:13px;line-height:1.6}.diet-app .progress-text strong{color:var(--brand-strong)}.diet-app .summary-list{flex-direction:column;gap:8px;margin:0 0 16px;padding:0;list-style:none;display:flex}.diet-app .summary-item{border:1px solid var(--line);background:#fff;border-radius:2px;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:10px;padding:10px 12px;display:flex}.diet-app .summary-info{flex-direction:column;min-width:90px;display:flex}.diet-app .summary-name{color:var(--ink);font-size:14px;font-weight:700}.diet-app .summary-grams{color:var(--muted);font-size:12px}.diet-app .summary-controls{flex-wrap:wrap;align-items:center;gap:6px;display:flex}.diet-app .stepper{border:1px solid var(--line);width:28px;height:28px;color:var(--brand-strong);cursor:pointer;background:#fff;border-radius:2px;font-size:15px}.diet-app .grams-input{border:1px solid var(--line);text-align:center;width:64px;color:var(--ink);font-variant-numeric:tabular-nums;border-radius:2px;outline:none;padding:6px 8px;font-size:13px}.diet-app .grams-input:focus{border-color:var(--brand)}.diet-app .summary-kcal{color:var(--brand-strong);text-align:right;font-variant-numeric:tabular-nums;min-width:60px;font-size:13px;font-weight:700}.diet-app .remove-btn{color:var(--muted);cursor:pointer;background:0 0;border:none;font-size:12px;text-decoration:underline}.diet-app .summary-total{border-top:1px solid var(--line);color:var(--ink);justify-content:space-between;align-items:center;padding-top:14px;font-size:14px;display:flex}.diet-app .summary-total strong{color:var(--brand-strong);font-variant-numeric:tabular-nums;font-size:22px;font-weight:800}.diet-app .summary-note{margin:10px 0 0;font-size:13px;line-height:1.6}.diet-app .summary-note.ok{color:var(--brand-strong)}.diet-app .summary-note.over{color:#dc2626}.diet-app .site-footer{text-align:center;color:var(--muted);padding:8px 0 0;font-size:12px;line-height:1.8}@media (max-width:560px){.diet-app .field-grid{grid-template-columns:1fr 1fr}.diet-app .food-list,.diet-app .activity-list{grid-template-columns:1fr}.diet-app .hero-title{font-size:26px}.diet-app .results{grid-template-columns:1fr}.diet-app .result-primary{border-bottom:1px solid #2563eb40;border-right:none;padding-bottom:12px;padding-right:0}}