:root{--green:#176b54;--ink:#213b34;--muted:#64766f;--line:#dae4de;--bg:#f5f7f2}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font-family:system-ui,-apple-system,"Noto Sans JP",sans-serif;line-height:1.7}header,footer{max-width:1050px;margin:auto;padding:22px 26px;display:flex;justify-content:space-between;align-items:center;gap:16px}a{color:var(--green);text-underline-offset:4px}header a{font-weight:750;text-decoration:none}header span,.source,footer{font-size:12px;color:var(--muted)}main{max-width:920px;margin:auto;padding:12px 24px 50px}.intro{padding:22px 0 26px}.eyebrow{letter-spacing:.18em;color:var(--green);font-size:11px;font-weight:800;margin:0 0 8px}h1{font-size:clamp(27px,4.8vw,42px);line-height:1.4;letter-spacing:-.04em;margin:0 0 10px}.intro>p:not(.eyebrow){color:var(--muted);margin:0 0 12px}.tag{font-size:11px;border:1px solid var(--line);border-radius:20px;padding:4px 12px;background:white}.panel{background:white;border:1px solid var(--line);border-radius:20px;padding:24px;box-shadow:0 9px 30px #213b3406}.controls{display:grid;grid-template-columns:1.1fr 1fr 1.1fr;gap:20px}label{display:block;font-size:12px;font-weight:650}select,input[type=number]{font:inherit;font-size:16px;background:#fff;border:1px solid #bccdc3;border-radius:8px;width:100%;min-height:43px;padding:8px 10px;margin-top:6px;color:var(--ink)}small{display:block;font-size:10px;font-weight:400;color:var(--muted);margin-top:5px}input[type=range]{accent-color:var(--green);width:100%;margin:19px 0 0}#cad-label{float:right;font-size:16px}.range-label{display:flex;justify-content:space-between;font-size:10px;color:var(--muted)}.presets{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin:20px 0;font-size:11px;color:var(--muted)}button{border:1px solid var(--line);border-radius:8px;background:white;color:var(--green);font:inherit;font-size:12px;padding:8px 13px;cursor:pointer}button:hover{background:#eaf3ed}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid #d49a43;outline-offset:3px}.gears{display:grid;grid-template-columns:1fr 1fr;gap:16px}.gear{border-radius:12px;padding:18px;background:#f1f6f1;border:1px solid #dbe8df}.gear.b{background:#edf4f8;border-color:#d7e4ec}.gear h2{font-size:13px;margin:0 0 14px;display:flex;align-items:center;gap:8px}.dot{width:8px;height:8px;border-radius:50%;background:var(--green)}.b .dot{background:#376e93}.teeth{display:grid;grid-template-columns:1fr 1fr;gap:12px}.speed{margin:18px 0 10px;line-height:1.1}.speed strong{font-size:44px;font-weight:750;letter-spacing:-.05em;font-variant-numeric:tabular-nums}.speed span{font-size:13px;color:var(--muted);margin-left:8px}.metrics{display:flex;justify-content:space-between;gap:8px;font-size:12px}.metrics b{font-variant-numeric:tabular-nums}.comparison{background:#f8faf5;border-radius:10px;padding:14px 18px;margin-top:18px}.comparison>b{font-size:16px}.comparison p{font-size:12px;color:var(--muted);margin:4px 0 0}.actions{display:flex;align-items:center;gap:12px;margin-top:18px;flex-wrap:wrap}.actions button:first-child{background:var(--green);color:white;border-color:var(--green)}.quiet{border:0;color:var(--muted)}#status{font-size:11px}#error{color:#a32d27;background:#fff0ed;padding:12px;margin-top:14px;border-radius:8px;font-size:12px}.table-section,.guide,.notes{margin-top:36px}h2{font-size:20px;margin:0 0 8px}.table-section>p{font-size:13px;color:var(--muted);margin-top:0}table{width:100%;border-collapse:collapse;background:white;border-radius:10px;overflow:hidden;font-size:13px}th,td{text-align:right;padding:12px 18px;border-bottom:1px solid var(--line);font-variant-numeric:tabular-nums}th:first-child,td:first-child{text-align:left}thead{background:#e8eee7}tr.current{background:#edf6ef;font-weight:700}.guide-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px 26px}h3{font-size:15px;margin:12px 0 6px}.guide p,.notes p{font-size:13px;color:#52655d}.notes{padding:22px;background:#eaf0e8;border-radius:12px}.notes h2{font-size:17px}#product-links{display:flex;gap:12px;flex-wrap:wrap}#product-links a{background:white;padding:8px 12px;border-radius:8px;font-size:13px}.ad{margin:30px 0;text-align:center}footer{border-top:1px solid var(--line);flex-wrap:wrap}.mobile{display:none}@media(max-width:600px){header{padding:16px 18px}header span{font-size:9px}main{padding:0 14px 30px}.intro{padding-top:14px}.panel{padding:14px;border-radius:14px}.controls{grid-template-columns:1fr 1fr;gap:12px}.controls>.cad-control{grid-column:1/-1}.gears{gap:8px}.gear{padding:12px 9px}.teeth{gap:6px}.teeth label{font-size:10px}.speed strong{font-size:34px}.speed span{font-size:11px;margin-left:3px}.metrics{font-size:10px;flex-wrap:wrap}.comparison>b{font-size:14px}.guide-grid{grid-template-columns:1fr;gap:0}.table-section{margin-top:26px}th,td{padding:10px 9px;font-size:12px}h1{font-size:28px}.mobile{display:block}}
input[type=text]{font:inherit;font-size:14px;background:white;border:1px solid #bccdc3;border-radius:8px;width:100%;padding:10px;margin:6px 0 12px;color:var(--ink);min-height:43px}.gear select{font-size:12px;margin-bottom:12px}.input-help{font-size:11px;color:var(--muted);margin:0 0 14px}.summary{border-top:1px solid var(--line);padding-top:10px;font-size:12px}.summary p{margin:4px 0}.summary strong{font-size:18px}.metric-buttons{display:flex;gap:8px;flex-wrap:wrap;margin:14px 0}.metric-buttons [aria-pressed=true]{background:var(--green);color:white;border-color:var(--green)}.matrix-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}.matrix-wrap{overflow:auto;border:1px solid var(--line);border-radius:10px}.matrix-wrap table{border-radius:0}.matrix-wrap td,.matrix-wrap th{padding:10px 8px;text-align:center;white-space:nowrap}.matrix-wrap tbody th{background:#f0f4ed}.matrix-wrap caption{font-size:11px;padding:8px;text-align:left;color:var(--muted)}@media(max-width:600px){.gears{grid-template-columns:1fr}.matrix-grid{gap:8px}.matrix-wrap td,.matrix-wrap th{padding:9px 6px;font-size:11px}.matrix-grid h3{font-size:13px}.summary{display:flex;flex-wrap:wrap;gap:4px 18px}.summary strong{font-size:16px}}

.chain-help{font-size:11px;line-height:1.7;margin:0 0 12px;color:var(--muted)}.cell-metric{display:flex;justify-content:flex-end;align-items:baseline;gap:5px;line-height:1.55}.cell-label{font-size:9px;color:#435c50;margin-right:auto}.cell-metric strong{font-size:13px;font-weight:650}.cell-unit{font-size:9px;min-width:25px;text-align:left}.matrix-wrap td{min-width:125px}.matrix-wrap tbody th{font-size:11px}.matrix-grid article{min-width:0}@media(max-width:700px){.matrix-grid{grid-template-columns:1fr}.matrix-wrap td{min-width:115px}.matrix-wrap th{min-width:55px}}

.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.cad-control .range-label strong{float:none;font-size:11px}.cad-control input[type=range]{margin-top:12px}.amazon-search{margin-top:12px;display:flex;gap:8px;flex-wrap:wrap}.amazon-search a{font-size:11px;line-height:1.5;padding:8px 10px;border:1px solid #b6cbbc;border-radius:8px;background:white;text-decoration:none}.amazon-search small{flex-basis:100%}.affiliate-disclosure{font-size:11px!important}

.amazon-search .shop-rakuten{border-color:#d8b5b5;color:#9a3030}.amazon-search a:hover{background:#f5f7f2}

/* わんぱく暮らしの黄色を控えめなアクセントに使用 */
:root{--green:#735800;--ink:#303531;--muted:#6b706b;--line:#e5e3d9;--bg:#fafaf7;--yellow:#ffc409}
header a{color:var(--ink);border-bottom:3px solid var(--yellow)}.eyebrow{color:#806100}.tag{background:#fff9df;border-color:#efe2a9}.panel{border-top:3px solid var(--yellow)}button:hover{background:#fff7da}.actions button:first-child{background:var(--yellow);border-color:#edb608;color:#302a15}.gear{background:#faf8ee;border-color:#e7e1ca}.gear.b{background:#f4f6f8;border-color:#dce2e7}.dot{background:#b48a00}.comparison{background:#fff9e6}thead{background:#fff2c3}.matrix-wrap tbody th{background:#f7f5ee}.notes{background:#f6f4eb}.guide p,.notes p{color:#5c635d}.cell-label{color:#62604f}.amazon-search a{border-color:#dfd2a2}.amazon-search a:hover{background:#fff8e1}
/* 3項目を保ちつつ、表の各行の高さを圧縮 */
.matrix-wrap td,.matrix-wrap th{padding:3px 8px}.cell-metric{line-height:1.15;min-height:15px;gap:4px}.cell-metric strong{font-size:12px}.matrix-wrap caption{padding:4px 8px}.matrix-grid h3{margin:6px 0}.table-section{margin-top:24px}.table-section>p{font-size:12px;margin-bottom:10px}@media(max-width:600px){.matrix-wrap td,.matrix-wrap th{padding:2px 6px}.cell-metric{line-height:1.1;min-height:14px}.cell-metric strong{font-size:12px}}

/* 表は従来の緑系。黄色はヘッダーと操作ボタンのアクセントに限定 */
:root{--green:#176b54;--line:#dae4de}.gear{background:#f1f6f1;border-color:#dbe8df}.gear.b{background:#edf4f8;border-color:#d7e4ec}.dot{background:var(--green)}.comparison{background:#f8faf5}thead{background:#e8eee7}.matrix-wrap tbody th{background:#f0f4ed}.cell-label{color:#435c50}.notes{background:#eaf0e8}.amazon-search a{border-color:#b6cbbc}.amazon-search a:hover{background:#f5f7f2}.amazon-search .shop-rakuten{border-color:#d8b5b5}

#legal-links{display:flex;flex-wrap:wrap;gap:8px 16px}