:root{--ink:#172018;--muted:#687268;--paper:#f7f5ef;--card:#fff;--line:#dedfd7;--green:#174f3b;--lime:#d9f26a;--orange:#ff9f46}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans JP",sans-serif}
button,input,select{font:inherit}
.topbar{height:74px;display:flex;align-items:center;justify-content:space-between;max-width:1180px;margin:auto;padding:0 28px;border-bottom:1px solid var(--line)}
.brand{display:flex;gap:10px;align-items:center;text-decoration:none;color:var(--ink);font:700 15px Georgia,"Yu Mincho",serif}
.brand-mark{display:block;width:32px;height:32px;border-radius:8px}
.status{font-size:12px;color:var(--muted);display:flex;align-items:center;gap:7px}.status i{width:7px;height:7px;background:#66ae72;border-radius:50%;box-shadow:0 0 0 4px #dcebdd}
main{max-width:1180px;margin:auto;padding:0 28px}
.hero{padding:24px 0 24px;position:relative;overflow:hidden}.hero:after{content:"↗";position:absolute;right:30px;top:18px;font:300 220px Georgia;color:#ece9df;z-index:-1}
.eyebrow,.panel-head p,.preview-head p{font-size:10px;font-weight:800;letter-spacing:.2em;color:var(--green);margin:0 0 12px}
h1{font:500 clamp(45px,7vw,78px)/.99 Georgia,"Yu Mincho",serif;letter-spacing:-.045em;margin:0;max-width:820px}h1 em{color:var(--green);font-weight:500}
.hero-copy{max-width:560px;color:var(--muted);line-height:1.8;margin:24px 0 20px}.trust-row{display:flex;gap:22px;font-size:12px;color:#59645a}
.builder{margin-top: 24px;display:grid;grid-template-columns:390px 1fr;background:var(--card);border:1px solid var(--line);box-shadow:0 20px 60px rgba(24,38,26,.08);margin-bottom:80px}
.panel{padding:30px;border-right:1px solid var(--line)}.panel-head,.preview-head>div:first-child{display:flex;gap:14px;align-items:flex-start}.panel-head{padding-bottom:24px;border-bottom:1px solid var(--line);margin-bottom:24px}
.step{display:grid;place-items:center;min-width:32px;height:32px;border:1px solid #b6bdb4;border-radius:50%;font:italic 12px Georgia;color:var(--green)}
h2{font:500 24px Georgia,"Yu Mincho",serif;margin:0}.panel-head p,.preview-head p{margin:0 0 5px}
.field{display:block;border:0;padding:0;margin:0 0 20px}.field>span:first-child,.field legend{display:block;font-size:12px;font-weight:700;margin-bottom:8px}.field b{font-size:9px;color:#fff;background:var(--green);padding:3px 5px;margin-left:5px;border-radius:2px}
input[type=text],select{width:100%;height:48px;border:1px solid #ccd0c8;border-radius:3px;background:#fbfbf8;padding:0 13px;outline:none;color:var(--ink)}input:focus,select:focus{border-color:var(--green);box-shadow:0 0 0 3px #e3eee9}
.input-with-suffix{position:relative}.input-with-suffix input{padding-right:94px}.input-with-suffix small{position:absolute;right:12px;top:16px;font-size:10px;color:#9a9f98}.error{font-size:10px;color:#b83b2f;margin-top:6px;min-height:13px}
.thumbnail-field>span small{font-weight:500;color:#8a9188;margin-left:5px}.thumbnail-inputs{display:grid;gap:7px;max-height:184px;overflow:auto;padding-right:3px}.thumbnail-row{display:grid;grid-template-columns:24px 1fr;align-items:center;gap:7px}.thumbnail-row>span{display:grid;place-items:center;width:22px;height:22px;border:1px solid #d4d8d1;border-radius:50%;font:10px Georgia;color:#687268}.thumbnail-row input{height:38px;border:1px solid #ccd0c8;border-radius:3px;background:#fbfbf8;padding:0 10px;min-width:0;font-size:11px;outline:none}.thumbnail-row input:focus{border-color:var(--green);box-shadow:0 0 0 3px #e3eee9}.thumbnail-row input.invalid{border-color:#b83b2f}.field-note{font-size:9px;color:#8a9188;margin:7px 0 0}
.item-label-field>span small{font-weight:500;color:#8a9188;margin-left:5px}.item-label-inputs{display:grid;gap:7px;max-height:184px;overflow:auto;padding-right:3px}.item-label-row{display:grid;grid-template-columns:24px 1fr;align-items:center;gap:7px}.item-label-row>span{display:grid;place-items:center;width:22px;height:22px;border:1px solid #d4d8d1;border-radius:50%;font:10px Georgia;color:#687268}.item-label-row input{height:38px;border:1px solid #ccd0c8;border-radius:3px;background:#fbfbf8;padding:0 10px;min-width:0;font-size:11px;outline:none}.item-label-row input:focus{border-color:var(--green);box-shadow:0 0 0 3px #e3eee9}
.field-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.segmented{display:grid;grid-template-columns:1fr 1fr;border:1px solid #ccd0c8;border-radius:3px;padding:3px}.segmented input{position:absolute;opacity:0}.segmented span{height:38px;display:grid;place-items:center;font-size:12px;cursor:pointer;border-radius:2px}.segmented input:checked+span{background:var(--green);color:#fff}
.check{display:flex;align-items:center;gap:9px;margin:12px 0;font-size:12px;color:#4f584f}.check input{accent-color:var(--green);width:16px;height:16px}
.generate{width:100%;border:0;background:var(--green);color:#fff;height:56px;margin-top:17px;padding:0 20px;display:flex;align-items:center;justify-content:space-between;cursor:pointer;font-weight:700;transition:.2s}.generate:hover{background:#0d3c2b;transform:translateY(-1px)}.generate b{font-size:22px;color:var(--lime)}
.workspace{padding:30px;background:#faf9f5}.preview-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:24px}.viewport-switch{display:flex;border:1px solid var(--line);padding:3px;background:#fff}.viewport-switch button{border:0;background:transparent;width:34px;height:30px;color:#8b918a;cursor:pointer}.viewport-switch button.active{background:#e9eee9;color:var(--green)}
.preview-shell{background:#ecece6;min-height:435px;padding:32px;display:flex;justify-content:center;align-items:flex-start;overflow:auto}.preview{background:#fff;width:100%;min-height:370px;padding:24px;transition:.25s}.preview.mobile{width:340px}
.amz-disclosure{font-size:10px;color:#81877f;margin:0 0 12px}.amz-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.amz-grid.list{grid-template-columns:1fr}.amz-card{display:flex;align-items:center;gap:13px;border:1px solid #e0e0db;border-radius:4px;padding:13px;color:#242a24;text-decoration:none;background:#fff;transition:.18s}.amz-card:hover{border-color:#d48a40;box-shadow:0 5px 16px rgba(40,40,20,.08);transform:translateY(-1px)}
.product-art{flex:0 0 64px;height:64px;display:grid;place-items:center;background:#f1f0e9;border-radius:3px;font-size:28px;overflow:hidden}.product-art img{display:block;width:100%;height:100%;object-fit:contain;background:#fff}.product-meta{min-width:0}.product-meta small{font-size:9px;letter-spacing:.08em;color:#7b837b}.product-meta strong{font-size:12px;display:block;margin:5px 0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.product-meta em{font-style:normal;font-size:10px;color:#a75b1b}.amz-grid.compact .amz-card{padding:9px}.amz-grid.compact .product-art{width:48px;height:48px;flex-basis:48px;font-size:22px}.amz-grid.large{grid-template-columns:1fr}.amz-grid.large .product-art{width:90px;height:90px;flex-basis:90px;font-size:38px}.preview.mobile .amz-grid{grid-template-columns:1fr}
.notice{display:flex;gap:12px;margin-top:16px;color:#6d756d}.notice>span{display:grid;place-items:center;flex:0 0 20px;height:20px;border:1px solid #879087;border-radius:50%;font:italic 12px Georgia}.notice p{font-size:10px;line-height:1.65;margin:0}.notice strong{display:block;color:#485048}
.output-section{margin:0 0 80px;background:#172018;color:#eaf0e8;padding:30px}.output-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px}.output-head h2{color:#fff}.copy{border:1px solid #6d7b6e;background:transparent;color:#fff;padding:11px 16px;cursor:pointer}.copy:hover{background:#263329}pre{margin:0;background:#0f1611;padding:20px;overflow:auto;max-height:340px;border:1px solid #303b32}code{font:12px/1.65 ui-monospace,SFMono-Regular,Menlo,monospace;color:#d8e7d5}.copy-status{font-size:11px;color:var(--lime);height:14px;margin:10px 0 0}
footer{max-width:1180px;margin:auto;border-top:1px solid var(--line);padding:28px;display:flex;justify-content:space-between;color:#778077;font-size:11px}footer span{font:700 14px Georgia,"Yu Mincho",serif;color:var(--ink)}footer p{margin:0}
@media(max-width:850px){.builder{grid-template-columns:1fr}.panel{border-right:0;border-bottom:1px solid var(--line)}.hero{padding-top:52px}.hero:after{display:none}.preview-shell{padding:16px}.preview{padding:15px}}
@media(max-width:520px){.topbar,main{padding-left:18px;padding-right:18px}.status{display:none}.hero{padding:42px 0}.hero-copy{font-size:14px}.trust-row{flex-wrap:wrap;gap:9px 16px}.panel,.workspace{padding:20px}.field-grid{grid-template-columns:1fr}.preview-head{align-items:flex-start}.preview-shell{margin:0 -5px}.amz-grid{grid-template-columns:1fr}.output-head{align-items:flex-end}.output-section{padding:22px}footer{display:block}footer p{margin-top:8px}}