:root{--ink:#173c3c;--muted:#5e7271;--paper:#f6f5ef;--line:#d9e0d8;--lime:#dbef9b}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:30px}body{margin:0;color:var(--ink);background:var(--paper);font:16px/1.85 "Yu Gothic",Meiryo,system-ui,sans-serif}a{color:inherit;text-decoration:none}a:hover{text-decoration:underline}header{max-width:1240px;margin:auto;padding:27px 32px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line)}.brand{font:700 25px/1.2 Georgia,serif;letter-spacing:-1px;display:flex;align-items:center;gap:7px}.brand>span:last-child{font-weight:400}.logo{background:var(--ink);color:var(--lime);border-radius:50%;width:39px;height:39px;display:grid;place-items:center;margin-right:5px}nav{display:flex;gap:28px;font-size:13px;font-weight:700}main{max-width:1240px;margin:auto}section{padding:64px 32px}.hero{padding-top:75px;padding-bottom:75px;display:grid;grid-template-columns:1.1fr 1fr;gap:60px;align-items:center}.eyebrow{font-size:11px;letter-spacing:2px;font-weight:700}.hero h1{font-size:clamp(42px,5vw,66px);line-height:1.4;letter-spacing:-3px;margin:24px 0}.intro{font-size:17px;color:var(--muted);margin-bottom:30px}.button{display:inline-flex;gap:50px;justify-content:space-between;background:var(--ink);color:white;border-radius:4px;padding:14px 23px;font-weight:700;font-size:14px}.fine{font-size:12px;color:var(--muted);line-height:1.8}.hero-art{min-height:370px;border-radius:5px;background:var(--lime);padding:30px 28px;display:flex;flex-direction:column;align-items:center;transform:rotate(-2deg)}.pill{font-size:12px;border:1px solid #587446;border-radius:20px;padding:4px 18px;margin-bottom:23px}.receipt{background:#fffef9;padding:25px 35px 35px;box-shadow:10px 12px 0 #bdd079;transform:rotate(5deg);width:95%;position:relative}.receipt p{font-size:13px}.receipt strong{font:500 59px/1.2 Georgia,serif;letter-spacing:-2px;display:block;margin:18px 0}.receipt strong span{font:12px system-ui;letter-spacing:0;margin-left:8px}.line{border-top:1px dashed #99aba1}.stamp{color:#477044;border:1px solid #769960;padding:5px 10px;font-size:12px;display:inline-block;transform:rotate(-4deg)}.art-note{font-size:10px;margin-top:26px}.section-heading{display:flex;justify-content:space-between;align-items:end;margin-bottom:30px}.section-heading h2,.principles h2{font-size:30px;line-height:1.6;margin:10px 0}.section-heading>p{font-size:13px;color:var(--muted)}.tool-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}.tool{background:white;border:1px solid var(--line);padding:28px;border-radius:6px;display:flex;flex-direction:column;gap:12px}.tool-no{font-size:11px;letter-spacing:1px;color:var(--muted)}h3{font-size:22px;line-height:1.6;margin:3px 0 10px}.inputs{display:grid;grid-template-columns:1fr 1fr;gap:16px}label{font-size:12px;font-weight:700}.input-wrap{display:flex;align-items:center;border:1px solid var(--line);padding:7px 10px;margin-top:5px;border-radius:3px;gap:8px}.input-wrap span{white-space:nowrap;font-size:11px;color:var(--muted)}input{width:100%;min-width:0;border:0;background:transparent;font-size:20px;color:var(--ink);padding:5px;outline-offset:2px}button{background:var(--ink);color:white;border:0;padding:12px;cursor:pointer;border-radius:3px;font:700 14px inherit}output{display:block;min-height:76px;padding:14px;background:#eff4e9;font-size:18px;font-weight:700;line-height:1.7}.tool>a{font-size:12px;text-decoration:underline;margin-top:auto}.tool .fine{min-height:44px;margin:0}.principles{background:var(--ink);color:white;margin:30px 32px;padding:40px;display:grid;grid-template-columns:1fr 1fr;gap:0 60px;border-radius:5px}.principles .eyebrow{grid-column:1/-1;color:var(--lime)}.principles p{font-size:14px;color:#e4ebe6}.principles b{color:var(--lime)}.guides{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.guide-card{background:#eaf0e5;border:1px solid var(--line);border-radius:4px;padding:25px;display:flex;flex-direction:column;min-height:285px}.guide-card:hover{background:#e0eacb;text-decoration:none}.tag{display:inline-block;font-size:11px;letter-spacing:1px;color:#567047;margin-bottom:15px}.guide-card h3{font-size:19px}.guide-card p{font-size:13px;color:var(--muted)}.arrow{font-size:12px;margin-top:auto;padding-top:15px}.notice{border-top:1px solid var(--line);padding-top:35px;padding-bottom:35px}.notice h2{font-size:19px}.notice p,.notice a{font-size:13px}footer{border-top:1px solid var(--line);padding:40px 32px;max-width:1240px;margin:auto}footer p{font-size:13px}footer div{display:flex;gap:24px;font-size:12px;margin:20px 0}small{font-size:10px;color:var(--muted)}.article{max-width:800px;margin:auto;padding:60px 32px 80px}.article h1{font-size:36px;line-height:1.6;margin:20px 0}.article .lead{color:var(--muted);font-size:18px}.article h2{font-size:23px;margin-top:40px}.article section{padding:0}.article p{line-height:2}.back{display:block;font-size:13px;margin-bottom:25px}.buy{background:#eaf0e5;padding:5px 25px 25px;margin:35px 0;border-radius:5px}.buy h2{font-size:20px}.shops{display:flex;gap:15px;flex-wrap:wrap}.shops a{background:white;border:1px solid var(--line);padding:12px 18px;border-radius:3px;font-size:13px}.skip{position:absolute;top:-100px}.skip:focus{top:0;background:white;padding:10px;z-index:10}:focus-visible{outline:3px solid #66842b;outline-offset:4px}@media(max-width:760px){header{padding:18px 20px;align-items:start;gap:20px;flex-direction:column}nav{gap:18px;font-size:11px}.brand{font-size:23px}.hero{grid-template-columns:1fr;gap:35px;padding-top:35px}.hero h1{letter-spacing:-2px}.hero-art{max-width:450px;width:100%;min-height:330px;justify-self:center}.receipt strong{font-size:49px}section{padding:38px 20px}.section-heading{display:block}.section-heading h2{font-size:25px}.tool-grid,.guides{grid-template-columns:1fr}.tool{padding:22px}.principles{grid-template-columns:1fr;margin:20px;padding:28px}.principles .eyebrow{grid-column:auto}.principles h2{font-size:27px}.guide-card{min-height:230px}.article{padding:35px 20px}.article h1{font-size:28px}footer{padding:30px 20px}footer div{gap:14px;flex-wrap:wrap}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
.products{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.product-card{background:white;border:1px solid var(--line);padding:24px;border-radius:5px;display:flex;flex-direction:column;gap:8px}.product-card h3{font-size:18px}.product-card p{font-size:13px;margin:0}.product-card .fine{font-size:11px}.product-cta{display:block;background:var(--ink);color:white;padding:12px 14px;border-radius:3px;font-size:12px;font-weight:bold;margin-top:auto}.product-source{font-size:11px;text-decoration:underline}.candidate{margin:35px 0}.rakuten-section{margin:30px 0;padding:20px;background:#edf1e7;border-radius:5px}.rakuten-section h2{font-size:20px;margin-top:0}.rakuten-widget-wrap{max-width:100%;overflow-x:auto;min-height:170px}.rakuten-widget-wrap>iframe{border:0}@media(max-width:760px){.products{grid-template-columns:1fr}.product-card{padding:20px}.rakuten-section{padding:14px}}
