.co2-board{--bg1:#0d1322;--bg2:#141c33;--ink:#e9edf7;--mute:#a9b4cf;--line:#ffffff1a;--acc:#3a5cb8;color:var(--ink);background:linear-gradient(180deg, var(--bg1), var(--bg2));border:1px solid var(--line);margin-bottom:var(--v7-sp-6);border-radius:18px;gap:16px;padding:clamp(14px,2.4vw,26px);display:grid}:where(.co2-board) button,:where(.co2-board) input{font:inherit;color:inherit}.co2-title h1{letter-spacing:0;color:var(--ink);margin:0;font-family:Cambria,Times New Roman,serif;font-size:clamp(1.5rem,3.2vw,2.1rem);font-weight:600;line-height:1.2}.co2-title h1 em{color:#8fa3d8;font-weight:400}.co2-title p{max-width:44rem;color:var(--mute);margin:6px 0 0;font-size:.875rem;line-height:1.55}.co2-tabs{grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;display:grid}.co2-tabs button{text-align:left;border:1px solid var(--line);cursor:pointer;background:#ffffff0a;border-radius:12px;align-items:center;gap:10px;min-height:56px;padding:8px 12px;display:flex}.co2-tabs button b{background:#ffffff1a;border-radius:50%;flex:none;place-items:center;width:28px;height:28px;font-size:.875rem;display:grid}.co2-tabs button span{gap:2px;font-size:.875rem;font-weight:600;line-height:1.3;display:grid}.co2-tabs button small{color:var(--mute);font-size:.75rem;font-weight:400}.co2-tabs button:hover{border-color:#6d8de0}.co2-tabs button.is-on{background:color-mix(in srgb, var(--acc) 30%, transparent);border-color:#6d8de0}.co2-tabs button.is-on b{background:var(--acc);color:#fff}.co2-stage{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;display:grid}.co2-pane{border:1px solid var(--line);background:#0000002e;border-radius:14px;align-content:start;gap:8px;min-width:0;margin:0;padding:12px;display:grid}.co2-pane figcaption{letter-spacing:.08em;text-transform:uppercase;color:var(--mute);font-size:.75rem}.co2-svg{width:100%;height:auto;max-height:360px;display:block}.co2-svg-t{fill:#d6def2;font-family:system-ui,sans-serif;font-size:12px}.co2-canvas{aspect-ratio:4/3;border:1px solid var(--line);border-radius:10px;width:100%;display:block}.co2-read{color:var(--ink);font-variant-numeric:tabular-nums;min-height:1.4em;margin:0;font-size:.875rem}.co2-note{color:var(--mute);margin:0;font-size:.75rem}.co2-legend{color:var(--mute);flex-wrap:wrap;gap:6px 14px;margin:0;font-size:.8125rem;display:flex}.co2-legend span{align-items:center;gap:6px;display:inline-flex}.co2-legend i{border-radius:50%;width:10px;height:10px}.co2-flame{transform-box:fill-box;transform-origin:50% 100%;animation:.35s ease-in-out infinite alternate co2-flick}@keyframes co2-flick{0%{transform:scale(1)rotate(-3deg)}to{transform:scale(.9,1.12)rotate(3deg)}}.co2-stream{animation:.6s linear infinite co2-flow}@keyframes co2-flow{to{stroke-dashoffset:-20px}}.co2-shake{transform-box:fill-box;transform-origin:50% 100%;animation:.28s ease-in-out infinite alternate co2-shk}@keyframes co2-shk{0%{transform:translate(-5px)rotate(-3deg)}to{transform:translate(5px)rotate(3deg)}}.co2-pick{cursor:pointer;outline:none}.co2-pick:focus-visible rect:first-of-type{stroke:#ffd36b;stroke-width:3px}.co2-ctl{border:1px solid var(--line);background:#ffffff0a;border-radius:14px;flex-wrap:wrap;align-items:center;gap:10px 14px;padding:12px;display:flex}.co2-btn{border:1px solid var(--line);cursor:pointer;background:0 0;border-radius:999px;min-height:44px;padding:0 18px;font-size:.875rem}.co2-btn:hover{border-color:#6d8de0}.co2-btn.is-primary{background:var(--acc);border-color:var(--acc);color:#fff;font-weight:600}.co2-range{min-height:44px;color:var(--mute);flex:14rem;align-items:center;gap:10px;font-size:.8125rem;display:flex}.co2-range input{accent-color:#6d8de0;flex:1;min-width:6rem}.co2-range b{min-width:3.2rem;color:var(--ink);font-variant-numeric:tabular-nums;text-align:right}.co2-chk{cursor:pointer;align-items:center;gap:8px;min-height:44px;font-size:.875rem;display:inline-flex}.co2-chk input{accent-color:#6d8de0;width:18px;height:18px}.co2-info{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;display:grid}.co2-card{border:1px solid var(--line);background:#ffffff0a;border-radius:14px;align-content:start;gap:10px;padding:14px 16px;display:grid}.co2-k{letter-spacing:.08em;text-transform:uppercase;color:#8fa3d8;margin:0;font-size:.75rem}.co2-card h2{color:var(--ink);margin:0;font-size:1.0625rem;font-weight:600;line-height:1.4}.co2-card .co2-btn{justify-self:start}.co2-ans{color:#dfe5f5;margin:0;font-size:.9375rem;line-height:1.65}.co2-eq{color:#ffd36b;margin:0;font-family:Cambria,Times New Roman,serif;font-size:1.25rem}.co2-card ul{color:#dfe5f5;gap:4px;margin:0;padding-left:1.1rem;font-size:.9375rem;line-height:1.55;display:grid}@media (max-width:820px){.co2-tabs,.co2-stage,.co2-info{grid-template-columns:1fr}}