:root{--accent:#e07b20;--bg-app:#050510;--bg-card:#0d0d1f;--bg-input:#111128;--text-primary:#fff;--text-secondary:#88a;--text-muted:#557;--cyan:#00f3ff;--purple:#bc13fe;--green:#10b981;--red:#f43f5e;--amber:#f59e0b;--border:#ffffff14;--radius:12px}*,:before,:after{box-sizing:border-box;margin:0;padding:0}body{background:var(--bg-app);color:var(--text-primary);min-height:100vh;font-family:Inter,sans-serif;line-height:1.5}a{color:inherit;text-decoration:none}.calc-breadcrumb{color:var(--text-muted);padding:10px 24px;font-size:.79rem}.calc-breadcrumb a{color:var(--text-secondary)}.main-container{max-width:1200px;margin:0 auto;padding:24px}.calc-title{margin-bottom:8px;font-size:2rem;font-weight:700}.calc-subtitle{color:var(--text-secondary);margin-bottom:24px;font-size:.95rem}.tab-nav{border-bottom:1px solid var(--border);margin-bottom:24px;display:flex}.tab-btn{color:var(--text-secondary);cursor:pointer;background:0 0;border:none;border-bottom:2px solid #0000;margin-bottom:-1px;padding:10px 22px;font-family:inherit;font-size:.9rem;transition:all .2s}.tab-btn:hover{color:var(--text-primary)}.tab-btn.active{color:var(--accent);border-bottom-color:var(--accent);font-weight:600}.tab-content{display:none}.tab-content.active{display:block}.calc-layout{grid-template-columns:340px 1fr;align-items:start;gap:20px;display:grid}@media (width<=900px){.calc-layout{grid-template-columns:minmax(0,1fr);overflow:hidden}}.card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:20px}.input-card{border-left:3px solid var(--cyan)}.result-card{border-left:3px solid var(--purple)}.section-title{margin-bottom:14px;font-size:1rem;font-weight:700}.form-group{margin-bottom:16px}.form-label{color:var(--text-secondary);margin-bottom:6px;font-size:.82rem;font-weight:500;display:block}.form-input,.form-select{background:var(--bg-input);border:1px solid var(--border);width:100%;color:var(--text-primary);border-radius:8px;padding:10px 14px;font-family:inherit;font-size:.92rem;transition:border-color .2s}.form-input:focus,.form-select:focus{border-color:var(--accent);outline:none}.form-select option{background:var(--bg-card)}.inline-inputs{grid-template-columns:1fr 1fr;gap:8px;display:grid}.hero-result{text-align:center;border-radius:var(--radius);background:linear-gradient(135deg,#ffd7001a,#ffd7000a);border:1px solid #ffd70040;margin-bottom:20px;padding:24px}.hero-label{color:var(--text-muted);text-transform:uppercase;letter-spacing:.08em;margin-bottom:6px;font-size:.78rem}.hero-value{color:var(--accent);font-size:2.4rem;font-weight:800;line-height:1.1}.hero-sub{color:var(--text-secondary);margin-top:8px;font-size:.87rem}.formula-strip{flex-wrap:wrap;gap:8px;margin-bottom:20px;display:flex}.formula-pill{color:var(--accent);white-space:nowrap;background:#ffd7001a;border:1px solid #ffd7004d;border-radius:20px;padding:5px 14px;font-size:.75rem}.stat-grid{grid-template-columns:repeat(3,1fr);gap:12px;margin-bottom:20px;display:grid}@media (width<=600px){.stat-grid{grid-template-columns:repeat(2,1fr)}}.stat-card{background:var(--bg-card);border:1px solid var(--border);border-left:3px solid var(--purple);border-radius:var(--radius);padding:13px}.stat-label{color:var(--text-muted);text-transform:uppercase;letter-spacing:.05em;margin-bottom:5px;font-size:.71rem}.stat-value{color:var(--text-primary);font-size:1.05rem;font-weight:700}.alert-stack{flex-direction:column;gap:8px;margin-bottom:20px;display:flex}.alert{border-left:3px solid;border-radius:8px;padding:10px 14px;font-size:.84rem;line-height:1.5}.alert-info{color:#7fffd4;background:#00d1c114;border-color:#00d1c1}.alert-success{border-color:var(--green);color:#6ee7b7;background:#10b98114}.alert-warn{border-color:var(--amber);color:#fcd34d;background:#f59e0b14}.alert-danger{border-color:var(--red);color:#fca5a5;background:#f43f5e14}.shape-chips{flex-wrap:wrap;gap:8px;margin-bottom:16px;display:flex}.shape-chip{border:1px solid var(--border);background:var(--bg-input);color:var(--text-secondary);cursor:pointer;text-align:center;border-radius:8px;padding:7px 14px;font-family:inherit;font-size:.83rem;line-height:1.3;transition:all .2s}.shape-chip small{opacity:.7;font-size:.7rem;display:block}.shape-chip:hover{border-color:var(--accent);color:var(--accent)}.shape-chip.active{border-color:var(--accent);color:var(--accent);background:#e07b201f}.inner-tabs{border-bottom:1px solid var(--border);gap:0;margin-bottom:0;display:flex}.inner-tab-btn{color:var(--text-secondary);cursor:pointer;background:0 0;border:none;border-bottom:2px solid #0000;margin-bottom:-1px;padding:8px 16px;font-family:inherit;font-size:.82rem;transition:all .2s}.inner-tab-btn:hover{color:var(--text-primary)}.inner-tab-btn.active{color:var(--accent);border-bottom-color:var(--accent);font-weight:600}.pet-interp-card{border-left:3px solid var(--accent);color:var(--text-secondary);background:#e07b200d;border-radius:6px;margin-top:10px;padding:8px 12px;font-size:.82rem}.data-table{border-collapse:collapse;width:100%;font-size:.87rem}.data-table th{color:var(--accent);text-align:left;border-bottom:1px solid var(--border);background:#e07b201a;padding:10px 14px;font-weight:600}.data-table td{color:var(--text-secondary);border-bottom:1px solid #ffffff0a;padding:9px 14px}.data-table tr:hover td{background:#ffffff05}.toxic-grid{grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:10px;margin-top:12px;display:grid}.toxic-item{border:1px solid;border-radius:8px;padding:10px 14px;font-size:.83rem;line-height:1.4}.toxic-item strong{margin-bottom:3px;font-size:.88rem;display:block}.toxic-fatal{color:#fda4b0;background:#be123c1a;border-color:#be123c59}.toxic-danger{color:#fde68a;background:#f59e0b1a;border-color:#f59e0b59}.toxic-mild{color:#fef08a;background:#eab30814;border-color:#eab30840}.toxic-fatal strong{color:#fb7185}.toxic-danger strong{color:#fbbf24}.toxic-mild strong{color:#fde047}.toxic-legend{flex-wrap:wrap;align-items:center;gap:10px;margin-top:12px;display:flex}.toxic-badge{border-radius:12px;padding:3px 10px;font-size:.72rem;font-weight:700;display:inline-block}.toxic-badge-fatal{color:#fb7185;background:#be123c33}.toxic-badge-danger{color:#fbbf24;background:#f59e0b26}.toxic-badge-mild{color:#fde047;background:#eab3081f}#neuteredRow{display:none}#neuteredRow.visible{display:block}.faq-section{max-width:1200px;margin:48px auto 0;padding:0 24px 48px}.faq-section h2{margin-bottom:20px;font-size:1.5rem}.faq-item{border:1px solid var(--border);border-radius:8px;margin-bottom:8px;overflow:hidden}.faq-q{cursor:pointer;justify-content:space-between;align-items:center;padding:13px 18px;font-size:.93rem;font-weight:500;display:flex}.faq-a{color:var(--text-secondary);padding:0 18px 13px;font-size:.87rem;line-height:1.6;display:none}.faq-item.open .faq-a{display:block}.related-section{max-width:1200px;margin:0 auto;padding:0 24px 48px}.related-section h2{margin-bottom:16px;font-size:1.3rem}.related-grid{grid-template-columns:repeat(auto-fill,minmax(185px,1fr));gap:12px;display:grid}.related-card{background:var(--bg-card);border:1px solid var(--border);color:var(--text-secondary);border-radius:8px;padding:13px;font-size:.87rem;transition:all .2s}.related-card:hover{border-color:var(--accent);color:var(--text-primary)}@media (width<=768px){.main-container{padding:16px}.calc-title{font-size:1.5rem}.tab-btn{padding:8px 12px;font-size:.81rem}.hero-value{font-size:1.9rem}.shape-chip 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p{color:#475569}[data-theme=light] .ex-badge2{color:#0e7490;background:#0e74901a}[data-theme=light] .ex-scenario2{color:#0f172a}[data-theme=light] .ex-calc2{color:#475569}[data-theme=light] .ex-result2{color:#0e7490}[data-theme=light] .article-body2{color:#475569}[data-theme=light] .article-body2 h3{color:#0f172a}[data-theme=light] .article-body2 p{color:#475569}[data-theme=light] .act-btn2{color:#334155;background:#f0f4f9;border-color:#0000001f}[data-theme=light] .act-btn2:hover{color:#0e7490;background:#0e749014;border-color:#0e74904d}[data-theme=light] .rel-card2{color:#334155;background:#fff;border-color:#0000001a}[data-theme=light] .rel-card2:hover{color:#0e7490;background:#0e74900f;border-color:#0e749040}[data-theme=light] .rc-title2{color:#0f172a}[data-theme=light] .rc-desc2{color:#64748b}[data-theme=light] .faq-section-extra .faq-item{background:#fff;border-color:#0000001a;box-shadow:0 1px 3px #0000000d}[data-theme=light] .faq-section-extra .faq-q{color:#0f172a;background:0 0}[data-theme=light] .faq-section-extra .faq-a{color:#475569}[data-theme=light] .faq-item{background:#fff;border-color:#0000001a}[data-theme=light] .faq-q{color:#0f172a}[data-theme=light] .faq-a{color:#475569}[data-theme=light] .related-card{color:#334155;background:#fff;border-color:#0000001a}[data-theme=light] .related-card:hover{color:#0f172a;border-color:#b45309}[data-theme=light] .section-title,[data-theme=light] .calc-title{color:#0f172a}[data-theme=light] .calc-subtitle{color:#475569}[data-theme=light] .calc-breadcrumb{color:#64748b}[data-theme=light] .calc-breadcrumb a{color:#334155}[data-theme=light] #treatCalRef,[data-theme=light] #treatMax,[data-theme=light] #waterTarget,[data-theme=light] #waterTargetCups,[data-theme=light] #waterDogWeight{color:#b45309}