:root{--indigo: #6366f1;--emerald: #10b981;--slate-900: #0f172a;--slate-600: #475569;--slate-200: #e2e8f0;--bg-soft: #f8fafc;--white: #ffffff}.app-shell{max-width:440px;margin:0 auto;min-height:100vh;background:var(--bg-soft);font-family:-apple-system,Inter,sans-serif;color:var(--slate-900)}.nav-bar{padding:20px;display:flex;justify-content:space-between;align-items:center;background:var(--white);border-bottom:1px solid var(--slate-200)}.brand{display:flex;align-items:center;gap:8px;font-weight:700;font-size:1.1rem}.brand-icon{color:var(--indigo)}.cloud-tag{font-size:.7rem;background:#eef2ff;color:var(--indigo);padding:4px 10px;border-radius:20px;display:flex;align-items:center;gap:4px;font-weight:600}.main-content{padding:20px}.view-card{background:var(--white);border-radius:24px;padding:24px;box-shadow:0 4px 20px #00000008}.section-title{font-weight:700;margin-bottom:20px;color:var(--slate-600)}.input-grid{display:grid;gap:20px;margin-bottom:24px}.input-item label{display:block;font-size:.85rem;font-weight:600;margin-bottom:10px;color:var(--slate-600)}.tab-group{display:flex;background:var(--bg-soft);padding:4px;border-radius:12px}.tab-group button{flex:1;border:none;padding:8px;border-radius:8px;font-weight:600;cursor:pointer;transition:.2s}.tab-group button.active{background:var(--white);color:var(--indigo);box-shadow:0 2px 8px #0000000d}.input-stack{display:flex;flex-direction:column;gap:12px;margin-bottom:24px}.field{display:flex;align-items:center;gap:12px;background:var(--bg-soft);padding:12px 16px;border-radius:14px;border:1px solid transparent}.field:focus-within{border-color:var(--indigo);background:var(--white)}.field input{border:none;background:transparent;width:100%;font-size:1rem;font-weight:600;outline:none}.primary-btn{width:100%;background:var(--indigo);color:#fff;border:none;padding:16px;border-radius:16px;font-weight:700;display:flex;align-items:center;justify-content:center;gap:8px;cursor:pointer;transition:.2s}.ghost-btn{width:100%;background:transparent;color:var(--slate-600);border:none;margin-top:12px;padding:12px;font-weight:600;display:flex;align-items:center;justify-content:center;gap:8px;cursor:pointer}.score-board{display:grid;grid-template-columns:1fr 1.2fr 1fr;gap:10px;margin:20px 0}.score-item{background:var(--bg-soft);padding:12px;border-radius:16px;text-align:center}.score-item.highlight{background:#eef2ff;border:1px solid #c7d2fe}.score-val{font-size:1.2rem;font-weight:800;color:var(--indigo)}.score-label{font-size:.65rem;color:var(--slate-600);margin-top:4px}.body-preview{height:140px;display:flex;justify-content:center;margin:20px 0}.human-svg{height:100%;transition:.5s ease}.human-svg.瘦弱{transform:scaleX(.7);color:#94a3b8}.human-svg.中等{transform:scaleX(1);color:var(--emerald)}.human-svg.偏胖{transform:scaleX(1.2);color:#f59e0b}.human-svg.肥胖{transform:scaleX(1.4);color:#ef4444}.advice-section{display:flex;flex-direction:column;gap:12px}.advice-box{padding:16px;border-radius:16px;font-size:.85rem}.advice-box.diet{background:#f0fdf4;color:#166534}.advice-box.exercise{background:#eff6ff;color:#1e40af}.advice-title{display:flex;align-items:center;gap:6px;font-weight:700;margin-bottom:6px}.chart-box{height:120px;margin:20px 0;background:#fafafa;border-radius:12px;padding:10px}.trend-svg{width:100%;height:100%;overflow:visible}.history-scroll{display:flex;flex-direction:column;gap:8px;max-height:200px;overflow-y:auto}.history-row{display:flex;justify-content:space-between;padding:12px;background:var(--bg-soft);border-radius:10px;font-size:.9rem;font-weight:600}.h-date{color:var(--slate-600)}.h-cat{font-size:.7rem;padding:2px 6px;border-radius:4px;background:#e2e8f0}.report-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px}.icon-btn{background:var(--bg-soft);border:none;width:36px;height:36px;border-radius:10px;display:flex;align-items:center;justify-content:center;cursor:pointer}.loader{width:30px;height:30px;border:3px solid var(--slate-200);border-top-color:var(--indigo);border-radius:50%;margin:0 auto 16px}.loading-box{text-align:center;padding:40px 0;color:var(--slate-600)}