:root{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans JP",sans-serif;font-size:16px;color-scheme:dark;--bg:#080b12;--panel:#111722;--line:#3c485b;--text:#f7f9fc;--muted:#b1bdce;--lime:#bdff32;--blue:#7dafff}
*{box-sizing:border-box}[hidden]{display:none!important}body{margin:0;background:var(--bg);color:var(--text);line-height:1.7}a{color:inherit;text-underline-offset:4px}button,input,select,textarea{font:inherit}button{cursor:pointer}button,a,input,summary,select{touch-action:manipulation}:focus-visible{outline:3px solid var(--blue);outline-offset:4px}header{max-width:1200px;margin:auto;min-height:70px;border-bottom:1px solid var(--line);padding:15px 24px;display:flex;justify-content:space-between;align-items:center;gap:12px}.brand{font-size:23px;font-weight:850;text-decoration:none;letter-spacing:-1px}.brand span{color:var(--lime)}.badge{font-size:12px;border:1px solid var(--line);border-radius:6px;padding:3px 10px;color:var(--muted)}main{max-width:1200px;padding:32px 24px 50px;margin:auto}.eyebrow{font-size:12px;font-weight:750;color:var(--lime);letter-spacing:.12em;margin:0 0 8px}h1{font-size:clamp(28px,3.5vw,42px);margin:0 0 10px;line-height:1.4;letter-spacing:-.03em}h1 span{display:inline-block}.intro>p:not(.eyebrow){color:var(--muted);margin:0;font-size:16px}.intro .privacy{color:var(--lime)!important;font-size:14px!important;margin:16px 0 24px!important}.workspace{display:grid;grid-template-columns:minmax(300px,.8fr) minmax(0,1.2fr);gap:30px;align-items:start}h2{font-size:23px;margin:0 0 14px;line-height:1.5}.input-panel{background:#f6f8fb;color:#172131;border:1px solid #9aa6b8;border-radius:16px;padding:24px;color-scheme:light}.input-panel h2{font-size:21px}.example-note{font-size:14px;color:#46576c;border-left:3px solid #536a88;padding-left:10px;margin:0 0 22px}.field{margin-bottom:18px;min-width:0}.field label{display:block;font-weight:700;font-size:14px;margin-bottom:6px}.number{display:flex;align-items:center;border:1px solid #8c9aaf;border-radius:8px;background:#fff;min-width:0}.number input{background:transparent;color:#172131;min-width:0;width:100%;border:0;padding:10px 12px;font-size:21px;font-weight:650;border-radius:8px;font-variant-numeric:tabular-nums}.number>span{font-size:14px;padding:0 12px 0 4px;white-space:nowrap;color:#4d5d70}select{width:100%;min-width:0;border:1px solid #8c9aaf;border-radius:8px;padding:12px 6px;color:#172131;background:white;font-size:15px}small,.hint{font-size:13px;line-height:1.7;color:var(--muted)}.field small{display:block;color:#4d5d70;margin-top:6px}.input-panel .hint{color:#4d5d70;margin:0 0 18px}.error{color:#a0182e;font-size:13px;margin:5px 0 0}.error:empty{display:none}.number:has([aria-invalid="true"]),select[aria-invalid="true"]{border:2px solid #ba2642}.button{display:flex;align-items:center;justify-content:center;text-align:center;width:100%;min-height:48px;padding:12px 16px;border-radius:8px;font-size:15px;font-weight:750;line-height:1.6;text-decoration:none;border:1px solid var(--line)}.primary{background:var(--lime);color:#111908;border-color:#659b0a}.primary:hover{background:#ceff70}.clear{background:transparent;border:0;color:#42536b;margin-top:4px;font-size:14px}.secondary{background:var(--panel);color:var(--text);margin-top:18px}.secondary:hover{border-color:var(--lime)}button:disabled{opacity:.6;cursor:not-allowed}#form-status{font-size:14px;color:#a0182e;margin:0 0 10px}#form-status:empty{display:none}.results{min-width:0}#result-title{scroll-margin-top:20px}.notice{font-size:14px;background:#241c12;border:1px solid #8c6840;border-radius:8px;padding:12px 15px;color:#ffdfaf}.empty{border:1px dashed var(--line);padding:28px;border-radius:12px;color:var(--muted)}.comparison{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:20px 0}.comparison>div{border:1px solid var(--line);border-radius:12px;padding:16px;background:var(--panel);min-width:0}.comparison span{font-size:14px;color:var(--muted)}.comparison strong{display:block;font-size:26px;overflow-wrap:anywhere;font-variant-numeric:tabular-nums}.comparison small{display:block}.saving{border:1px solid #83aa37;background:#141d14;border-radius:12px;padding:24px}.saving>p{margin:0;color:#c2d3bc;font-size:14px}.saving strong{display:block;font-size:clamp(28px,3.5vw,42px);margin:8px 0;overflow-wrap:anywhere;font-variant-numeric:tabular-nums;color:var(--lime)}.saving.negative{border-color:#b57a49;background:#291f18}.saving.negative strong{color:#ffcc9c}.saving.negative p{color:#ead0b7}.facts{margin:20px 0}.facts>div{display:grid;grid-template-columns:1fr 1.1fr;gap:12px;border-bottom:1px solid var(--line);padding:14px 0}.facts dt{font-size:14px}.facts small{display:block}.facts dd{margin:0;font-weight:700;font-size:17px;overflow-wrap:anywhere}.action{border-left:3px solid var(--lime);padding:2px 0 2px 18px;margin:24px 0}.action h3{margin:0 0 8px;font-size:20px}.action>p:last-child{font-size:14px;color:var(--muted);margin:0}#copy-status{font-size:14px;color:var(--lime);min-height:1.5em;margin:7px 0}#manual-copy{width:100%;min-height:220px;padding:12px;background:var(--panel);color:var(--text);border:1px solid var(--line)}.next{border:1px solid var(--line);border-radius:12px;padding:22px;margin-top:24px}.next h3{font-size:20px;margin:0 0 8px}.next p{font-size:14px;color:var(--muted);margin:0 0 16px}.next small{display:block;margin-top:12px}.support-link{display:block;font-size:13px;color:var(--muted);margin-top:16px}details{border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:12px 0;margin-top:24px;font-size:14px}summary{cursor:pointer;min-height:40px;padding:8px 0;font-weight:650}details ul{padding-left:22px;color:var(--muted)}details li+li{margin-top:8px}footer{max-width:1152px;margin:0 auto;border-top:1px solid var(--line);padding:24px 0 36px;display:flex;justify-content:space-between;gap:16px;color:var(--muted);font-size:12px}footer nav{display:flex;flex-wrap:wrap;gap:12px}
@media(max-width:800px){.workspace{grid-template-columns:1fr;gap:26px}h1{font-size:32px}footer{display:block;margin:0 24px}footer nav{margin-top:12px}}
@media(max-width:420px){header{padding:14px 16px;flex-wrap:wrap;gap:8px}.brand{font-size:21px}main{padding:24px 16px 36px}h1{font-size:28px}.input-panel{padding:20px 16px}.comparison{grid-template-columns:1fr}.comparison>div{padding:12px 16px}.comparison strong{font-size:24px}.saving{padding:18px}.saving strong{font-size:30px}.facts>div{grid-template-columns:1fr;gap:5px}.next{padding:18px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important}}

.tool-return{max-width:1200px;margin:0 auto;padding:4px 24px;font-size:14px}.tool-return a{display:inline-flex;align-items:center;min-height:44px;color:#b1bdce;text-decoration:underline;text-underline-offset:4px}