*{box-sizing:border-box;margin:0;padding:0}:root{--bg-dark:#050510;--card:#ffffff0a;--input-bg:#ffffff0d;--border:#ffffff14;--border-hi:#ffffff2e;--text-main:#fff;--text-dim:#88a;--text-muted:#666;--accent:#00d1c1;--accent2:#00f3ff;--font-mono:"JetBrains Mono", "Courier New", monospace}body{color:var(--text-main);background-color:var(--bg-dark);background-image:radial-gradient(circle at 8% 15%,#00d1c117 0%,#0000 25%),radial-gradient(circle at 92% 80%,#00f3ff12 0%,#0000 22%);min-height:100vh;font-family:Inter,sans-serif}a{color:inherit;text-decoration:none}input::-webkit-outer-spin-button,input::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}input[type=number]{-moz-appearance:textfield;appearance:textfield}.page-title{text-align:center;background:linear-gradient(135deg,#00d1c1 0%,#00f3ff 100%);-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text;margin:30px 0 10px;font-size:2.2rem;font-weight:800}.section-desc{text-align:center;color:var(--text-dim);margin-bottom:20px;font-size:.92rem}.glass-input,.glass-select{background:var(--input-bg);border:1px solid var(--border-hi);width:100%;height:42px;color:var(--text-main);border-radius:6px;outline:none;padding:8px 12px;font-size:14px;transition:all .2s;box-shadow:inset 0 2px 4px #0000001a}.glass-select{color-scheme:dark;background-color:#0d0d1f}.glass-select option{color:#fff;background-color:#0d0d1f}.glass-input:focus,.glass-select:focus{border-color:var(--accent);box-shadow:inset 0 2px 4px #0003,0 0 10px #00d1c140}.tab-control{flex-wrap:wrap;gap:8px;max-width:1040px;margin:0 auto 24px;padding:0 24px;display:flex}.tab-btn{border:1px solid var(--border-hi);background:var(--card);color:var(--text-dim);cursor:pointer;border-radius:8px;align-items:center;gap:7px;padding:10px 22px;font-family:Inter,sans-serif;font-size:.88rem;font-weight:600;transition:all 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var(--border);margin-bottom:16px;padding-bottom:8px;font-size:.72rem;font-weight:700}.field-grid{grid-template-columns:1fr 1fr;gap:14px;display:grid}.field-group{flex-direction:column;gap:5px;display:flex}.field-label{color:var(--text-dim);letter-spacing:.3px;font-size:.78rem;font-weight:600}.field-hint{color:var(--text-muted);margin-top:4px;font-size:.75rem}.psi-chips{flex-wrap:wrap;gap:7px;margin-bottom:14px;display:flex}.psi-chip{color:var(--text-dim);cursor:pointer;background:#ffffff0a;border:1px solid #ffffff1f;border-radius:20px;padding:6px 12px;font-family:Inter,sans-serif;font-size:.78rem;font-weight:600;transition:all .2s}.psi-chip:hover{color:#00d1c1;background:#00d1c112;border-color:#00d1c166}.psi-chip.active{color:#00d1c1;background:#00d1c126;border-color:#00d1c199;box-shadow:0 0 10px #00d1c126}.custom-psi-chip{border-style:dashed}.custom-psi-row{margin-top:4px}.unit-toggle{background:#ffffff0d;border-radius:20px;gap:2px;padding:3px;display:flex}.toggle-btn{color:var(--text-muted);cursor:pointer;background:0 0;border:1px solid #0000;border-radius:14px;padding:5px 12px;font-family:Inter,sans-serif;font-size:.75rem;font-weight:600;transition:all .3s}.toggle-btn:hover{color:#aaa}.toggle-btn.active{background:var(--accent);color:#000;border-color:var(--accent);box-shadow:0 0 10px #00d1c14d}.quality-badge{letter-spacing:.5px;border-radius:20px;margin-bottom:14px;padding:5px 14px;font-size:.78rem;font-weight:700;display:inline-block}.quality-high{color:#00f3ff;background:#00f3ff1f;border:1px solid #00f3ff4d}.quality-standard{color:#10b981;background:#10b9811f;border:1px solid #10b9814d}.quality-economy{color:#fbbf24;background:#fbbf241f;border:1px solid #fbbf244d}.quality-weak{color:#ef4444;background:#ef44441f;border:1px solid #ef44444d}.mix-ratio-display{background:#00d1c10f;border:1px solid #00d1c133;border-radius:8px;flex-direction:column;align-items:center;margin-bottom:16px;padding:10px 14px;display:flex}.mix-ratio-label{color:var(--text-muted);text-transform:uppercase;letter-spacing:1px;margin-bottom:4px;font-size:.7rem}.mix-ratio-value{font-size:1.1rem;font-weight:700;font-family:var(--font-mono);color:#00d1c1}.result-stats{grid-template-columns:1fr 1fr;gap:10px;margin-bottom:16px;display:grid}.stat-cell{border:1px solid var(--border);background:#ffffff08;border-radius:8px;flex-direction:column;gap:2px;padding:10px 12px;display:flex}.stat-cell--accent{background:#00d1c10f;border-color:#00d1c133}.stat-val{font-size:1.15rem;font-weight:700;font-family:var(--font-mono);color:var(--text-main)}.stat-lbl{color:var(--text-muted);text-transform:uppercase;letter-spacing:.5px;font-size:.68rem}.chart-wrap{margin-bottom:14px;padding:8px 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12px;font-family:Inter,sans-serif;font-size:.8rem;font-weight:600;transition:all .2s}.preset-apply-btn:hover{background:#00d1c126}.toast{z-index:9999;border-radius:8px;max-width:320px;padding:12px 18px;font-size:.85rem;font-weight:600;animation:.25s toast-in;position:fixed;bottom:24px;right:24px}.toast-success{color:#00d1c1;background:#00d1c126;border:1px solid #00d1c166}.toast-warn{color:#fbbf24;background:#fbbf2426;border:1px solid #fbbf2466}.toast-error{color:#ef4444;background:#ef444426;border:1px solid #ef444466}@keyframes toast-in{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.page-sections-outer{max-width:1040px;margin:0 auto;padding:0 24px 3rem}.how-section{margin:40px 0 32px}.how-title{color:var(--text-main);margin-bottom:20px;font-size:1.25rem;font-weight:700}.how-steps{flex-direction:column;gap:14px;display:flex}.how-step{align-items:flex-start;gap:14px;display:flex}.step-num{color:#00d1c1;background:#00d1c126;border:1px solid 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32px}.g2-title{color:var(--text-main);margin-bottom:16px;font-size:1.25rem;font-weight:700}.g2-grid{grid-template-columns:repeat(2,1fr);gap:12px;display:grid}.g2-item{background:var(--card);border:1px solid var(--border);border-radius:10px;padding:14px 16px}.g2-term{color:#00d1c1;margin-bottom:5px;font-size:.82rem;font-weight:700}.g2-def{color:var(--text-dim);font-size:.78rem;line-height:1.65}.faq-section-extra{margin:0 0 32px}.faq-title2{color:var(--text-main);margin-bottom:16px;font-size:1.25rem;font-weight:700}.faq-list{flex-direction:column;display:flex}.faq-item{border-bottom:1px solid var(--border)}.faq-item__question{cursor:pointer;color:var(--text-main);user-select:none;justify-content:space-between;align-items:center;padding:14px 4px;font-size:.9rem;font-weight:600;list-style:none;transition:color .2s;display:flex}.faq-item__question::-webkit-details-marker{display:none}.faq-item__question:after{content:"+";font-family:var(--font-mono);color:var(--text-dim);flex-shrink:0;margin-left:16px;font-size:1.1rem;transition:color .2s}.faq-item[open] .faq-item__question:after{content:"−";color:var(--accent)}.faq-item__question:hover{color:#00d1c1}.faq-item__answer{color:var(--text-dim);padding:0 4px 14px;font-size:.85rem;line-height:1.75}.calc-related{margin:0 0 24px}.related-title{color:var(--text-main);margin-bottom:16px;font-size:1.25rem;font-weight:700}.related-grid{grid-template-columns:repeat(2,1fr);gap:12px;display:grid}.related-card{background:var(--card);border:1px solid var(--border);border-radius:10px;flex-direction:column;gap:4px;padding:14px 16px;text-decoration:none;transition:border-color .2s,box-shadow .2s;display:flex}.related-card:hover{border-color:#00d1c159;box-shadow:0 0 12px #00d1c114}.related-icon{font-size:1.4rem}.related-name{color:var(--text-main);font-size:.85rem;font-weight:700}.related-desc{color:var(--text-dim);font-size:.75rem;line-height:1.5}[data-theme=light]{--bg-dark:#e8edf5;--card:#fffffff2;--input-bg:#e8eef4;--border:#0000001a;--border-hi:#0000002e;--text-main:#0f172a;--text-dim:#334155;--text-muted:#64748b;--accent:#0f766e;--accent2:#0e7490}[data-theme=light] body{background-color:#e8edf5}[data-theme=light] .page-title{background:linear-gradient(135deg,#0f766e 0%,#0e7490 100%);-webkit-background-clip:text;background-clip:text}[data-theme=light] .glass-navbar{backdrop-filter:blur(12px);background:#f8fafceb}[data-theme=light] .glass-input,[data-theme=light] .glass-select{color:#0f172a;background:#f0f4f9;border-color:#0000002e}[data-theme=light] .glass-select{color-scheme:light;background-color:#f0f4f9}[data-theme=light] .glass-select option{color:#0f172a;background-color:#fff}[data-theme=light] .glass-input:focus,[data-theme=light] .glass-select:focus{border-color:#0f766e;box-shadow:0 0 0 3px #0f766e1f}[data-theme=light] .glass-input::placeholder{color:#00000059}[data-theme=light] .card{background:#fff;border-color:#0000001a;box-shadow:0 1px 4px #0000000f}[data-theme=light] .result-card{background:#fff;border-color:#0f766e40 #0f766e40 #0f766e40 #0f766e;box-shadow:0 1px 4px #0000000f}[data-theme=light] .section-header{color:#475569;border-bottom-color:#0000001a}[data-theme=light] .tab-btn{color:#475569;background:#fff;border-color:#00000024;box-shadow:0 1px 3px #0000000f}[data-theme=light] .tab-btn:hover{color:#0f172a;background:#f0f4f9}[data-theme=light] .tab-btn.active{color:#0f766e;box-shadow:none;background:#0f766e1a;border-color:#0f766e66}[data-theme=light] .psi-chip{color:#475569;background:#f0f4f9;border-color:#00000024}[data-theme=light] .psi-chip:hover{color:#0f766e;background:#0f766e14;border-color:#0f766e59}[data-theme=light] .psi-chip.active{color:#0f766e;box-shadow:none;background:#0f766e1f;border-color:#0f766e80}[data-theme=light] .unit-toggle{background:#0000000d}[data-theme=light] .toggle-btn{color:#64748b}[data-theme=light] .toggle-btn.active{color:#fff;box-shadow:none;background:#0f766e;border-color:#0f766e}[data-theme=light] .quality-high{color:#0e7490;background:#eff9fb;border-color:#0e74904d}[data-theme=light] .quality-standard{color:#065f46;background:#f0fdf4;border-color:#065f464d}[data-theme=light] .quality-economy{color:#a16207;background:#fffbeb;border-color:#a162074d}[data-theme=light] .quality-weak{color:#b91c1c;background:#fff1f2;border-color:#b91c1c4d}[data-theme=light] .mix-ratio-display{background:#0f766e0f;border-color:#0f766e33}[data-theme=light] .mix-ratio-label{color:#64748b}[data-theme=light] .mix-ratio-value{color:#0f766e}[data-theme=light] .stat-cell{background:#edf2f9;border-color:#0000001a}[data-theme=light] .stat-cell--accent{background:#0f766e12;border-color:#0f766e33}[data-theme=light] .stat-val{color:#0f172a}[data-theme=light] .stat-lbl{color:#64748b}[data-theme=light] .action-btn{color:#0f766e;background:#0f766e12;border-color:#0f766e4d}[data-theme=light] .action-btn:hover{background:#0f766e24}[data-theme=light] .batch-note{color:#475569;background:#0f766e0d;border-left-color:#0f766e4d}[data-theme=light] .cost-row{color:#334155;border-bottom-color:#0000000f}[data-theme=light] .cost-row--total{color:#0f172a;border-top-color:#0f766e40}[data-theme=light] .cost-row--total span:last-child{color:#0f766e}[data-theme=light] .preset-card{background:#fff;border-color:#0000001a;box-shadow:0 1px 4px #0000000d}[data-theme=light] .preset-card:hover{border-color:#0f766e59;box-shadow:0 2px 10px #0f766e14}[data-theme=light] .preset-psi{color:#0f766e}[data-theme=light] .preset-name{color:#0f172a}[data-theme=light] .preset-desc{color:#475569}[data-theme=light] .ptag{color:#0f766e;background:#0f766e14;border-color:#0f766e33}[data-theme=light] .preset-apply-btn{color:#0f766e;background:#0f766e12;border-color:#0f766e4d}[data-theme=light] .preset-apply-btn:hover{background:#0f766e24}[data-theme=light] .step-num{color:#0f766e;background:#0f766e1a;border-color:#0f766e4d}[data-theme=light] .step-body strong{color:#0f172a}[data-theme=light] .step-body p{color:#475569}[data-theme=light] .fp2-pill{background:#0f766e0d;border-color:#0f766e33}[data-theme=light] .fp2-label{color:#0f766e}[data-theme=light] .fp2-formula{color:#0f172a}[data-theme=light] .fp2-note{color:#475569}[data-theme=light] .g2-item{background:#fff;border-color:#0000001a;box-shadow:0 1px 3px #0000000d}[data-theme=light] .g2-term{color:#0f766e}[data-theme=light] .g2-def{color:#475569}[data-theme=light] .faq-list{gap:8px}[data-theme=light] .faq-item{background:#fff;border:1px solid #0000001a;border-radius:10px;transition:box-shadow .2s,border-color .2s;overflow:hidden;box-shadow:0 1px 4px #0000000f}[data-theme=light] .faq-item:hover{border-color:#0f766e59;box-shadow:0 2px 10px #0f766e14}[data-theme=light] .faq-item[open]{border-color:#0f766e66 #0f766e66 #0f766e66 #0f766e;border-left-style:solid;border-left-width:3px;box-shadow:0 2px 12px #0f766e1a}[data-theme=light] .faq-item__question{color:#0f172a;padding:14px 16px}[data-theme=light] .faq-item__question:after{color:#64748b}[data-theme=light] .faq-item[open] .faq-item__question:after,[data-theme=light] .faq-item__question:hover{color:#0f766e}[data-theme=light] .faq-item__answer{color:#475569;border-top:1px solid #0000000f;padding:12px 16px 16px}[data-theme=light] .related-card{background:#fff;border-color:#0000001a;box-shadow:0 1px 3px #0000000d}[data-theme=light] .related-card:hover{border-color:#0f766e59;box-shadow:0 2px 10px #0f766e14}[data-theme=light] .related-name{color:#0f172a}[data-theme=light] .related-desc{color:#475569}[data-theme=light] .toast-success{color:#0f766e;background:#0f766e1f;border-color:#0f766e66}[data-theme=light] .how-title,[data-theme=light] .fp2-title,[data-theme=light] .g2-title,[data-theme=light] .faq-title2,[data-theme=light] .related-title{color:#0f172a}@media (width<=900px){.calculator-grid,.field-grid{grid-template-columns:1fr}.presets-grid{grid-template-columns:1fr 1fr}.fp2-grid,.g2-grid,.related-grid{grid-template-columns:1fr}.result-stats{grid-template-columns:1fr 1fr}}@media (width<=600px){.page-title{font-size:1.6rem}.presets-grid,.result-stats{grid-template-columns:1fr}.calculator-container{padding:0 16px}.page-sections-outer{padding:0 16px 2rem}.tab-control{padding:0 16px}}