:root{--ink:#21473d;--paper:#f5f2eb;--warm:#a56439;--line:#d8ded6;--muted:#52635b}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:90px}body{margin:0;background:#fff;color:var(--ink);font-family:"Yu Gothic","Meiryo",sans-serif;line-height:1.85}a{color:inherit;text-underline-offset:5px}a:hover{color:#94502a}button,a,input{touch-action:manipulation}button{font:inherit;cursor:pointer}button:focus-visible,a:focus-visible,input:focus-visible{outline:3px solid #af743d;outline-offset:4px}.top{position:sticky;top:0;z-index:20;background:#ffffffef;border-bottom:1px solid var(--line);padding:16px max(24px,calc((100vw - 1160px)/2));display:flex;align-items:center;justify-content:space-between;gap:20px}.brand{text-decoration:none;letter-spacing:.08em;font-weight:bold}.brand span{font-size:10px;display:block;letter-spacing:.2em;color:var(--muted)}.button{display:inline-flex;align-items:center;justify-content:center;gap:24px;background:var(--ink);color:white;text-decoration:none;border:1px solid var(--ink);padding:15px 24px;min-height:52px;font-size:15px;font-weight:bold;line-height:1.5}.button:hover{background:#17362e;color:white}.button.compact{font-size:13px;min-height:48px;padding:12px 18px}.button.outline{background:transparent;color:var(--ink)}main{max-width:1200px;margin:auto}.recipient{display:flex;justify-content:space-between;gap:12px;padding:18px 20px;font-size:13px}.recipient span:last-child{color:#765133}.hero{background:#f6f2e9}.hero>img{display:block;width:100%;height:auto;max-height:570px;object-fit:contain}.hero-actions{display:flex;justify-content:center;align-items:center;gap:28px;padding:20px;border-top:1px solid #e5dfd3}.text-link{font-size:14px;font-weight:bold}.intro{padding:24px 40px 8px;font-size:17px;line-height:2}.notice{background:#f4f6f1;border-left:3px solid #7a9174;padding:18px 24px;margin:24px 40px}.notice strong{font-size:15px}.notice p{font-size:14px;margin:6px 0 0}.section-nav{display:flex;justify-content:space-around;gap:12px;flex-wrap:wrap;margin:35px 40px 0;padding:17px 0;border-block:1px solid var(--line);font-size:13px}.section-nav a{text-decoration:none}.section{padding:64px 40px;border-bottom:1px solid var(--line)}.section-heading{display:flex;align-items:center;gap:24px;margin-bottom:32px}.number{font:52px Georgia,serif;font-weight:normal;color:var(--warm)}.eyebrow{font-size:12px;letter-spacing:.14em;margin:0 0 7px;color:var(--muted)}h2{font-size:27px;line-height:1.6;margin:0;font-weight:600;letter-spacing:.03em}h3{font-size:18px;margin:0 0 18px}p{margin:0 0 18px}.split{display:grid;grid-template-columns:1fr 1fr;gap:48px}.checks label{display:flex;align-items:flex-start;gap:12px;border-bottom:1px solid var(--line);padding:15px 0;font-size:14px}.checks input{width:20px;height:20px;flex-shrink:0;margin-top:3px;accent-color:var(--ink)}.subtle{font-size:12px;color:var(--muted);margin:16px 0 0}.links{display:flex;flex-wrap:wrap;gap:12px 24px;font-size:14px;margin-top:24px}.instruction{background:var(--paper);padding:27px 28px}.instruction p:not(.subtle):not(.eyebrow){font-size:17px;line-height:2}.copy{background:white;border:1px solid var(--ink);color:var(--ink);padding:10px 19px;min-height:48px;font-size:14px}.copy:hover{background:#e7ede5}.wide{margin:24px 0}.setting-line{display:flex;gap:25px;align-items:baseline;margin-top:30px;padding-top:22px;border-top:1px solid var(--line);font-size:14px}.setting-line span{font-weight:bold;white-space:nowrap}.setting-line p{margin:0}details{margin-top:28px;border-block:1px solid var(--line);padding:16px 0;font-size:14px}summary{cursor:pointer;font-weight:bold;padding:4px 0;min-height:40px}details p,details a{margin-left:22px}li{padding:4px 0}.shaded{background:#f7f8f4}.tabs{display:flex;border-bottom:1px solid #afbeb1;margin-bottom:28px}.tabs button{flex:1;padding:14px;min-height:50px;border:0;background:transparent;color:var(--muted)}.tabs button[aria-selected=true]{background:var(--ink);color:white}.step-list{display:grid;grid-template-columns:1fr 1fr;column-gap:50px;row-gap:20px;padding-left:24px}.step-list b{font-size:17px}.step-list p{font-size:14px;margin:8px 0}.four{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:20px}.four span{border:1px solid #b7c5b8;padding:12px 26px;font-size:19px;letter-spacing:.1em}.routes{margin-top:32px}.route-label{font-size:12px;color:var(--warm);display:block;margin-bottom:8px}.routes ol{font-size:14px;padding-left:22px}.samples{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin:28px 0}.samples a{text-decoration:none;background:white;border:1px solid var(--line)}.samples img{display:block;width:100%;height:auto;border-bottom:1px solid var(--line)}.samples span{display:block;padding:18px}.samples b,.samples small{display:block}.samples small{font-size:12px;color:var(--muted);margin-top:4px}.table-wrap{overflow-x:auto}table{border-collapse:collapse;width:100%;font-size:14px}th,td{text-align:left;padding:18px 20px;border-bottom:1px solid var(--line);vertical-align:top}th{background:var(--ink);color:white}td:first-child{width:35%;font-weight:bold}.section>.notice{margin-inline:0}.download-section{padding:55px 40px;background:var(--paper)}.download-section .button{margin-top:12px}.footer{max-width:1200px;margin:auto;padding:36px 40px;color:var(--muted);font-size:12px}.footer p{margin:0 0 5px}#toast{position:fixed;bottom:20px;left:50%;transform:translateX(-50%);padding:10px 22px;background:var(--ink);color:white;z-index:30;display:none;max-width:90%;font-size:14px}#toast.show{display:block}.sr-only,.skip{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}.skip:focus{width:auto;height:auto;clip:auto;left:10px;top:10px;z-index:40;background:white;padding:8px}.guide{max-width:900px;padding:40px;margin:auto}.guide h1{font-size:30px}.guide h2{font-size:23px;margin:30px 0 18px}.guide li{margin-bottom:10px}@media(max-width:700px){.top{padding:12px 16px;gap:10px}.brand{font-size:13px}.button.compact{font-size:12px;padding:10px 12px}.recipient{padding:16px;font-size:11px;flex-wrap:wrap}.hero>img{max-height:none}.hero-actions{flex-direction:column;gap:16px;padding:20px 16px}.hero-actions .button{width:100%;font-size:14px;padding:16px 12px}.intro{font-size:15px;padding:24px 20px 0}.intro br{display:none}.notice{margin:22px 20px;padding:16px 18px}.section-nav{margin:28px 20px 0;justify-content:flex-start;gap:12px 18px}.section{padding:42px 20px}.section-heading{gap:16px;margin-bottom:25px}.number{font-size:40px}h2{font-size:23px}.split{grid-template-columns:1fr;gap:30px}.instruction{padding:22px}.instruction p:not(.subtle):not(.eyebrow){font-size:16px}.setting-line{display:block}.setting-line p{margin-top:8px}.step-list{grid-template-columns:1fr;gap:10px}.four{gap:10px}.four span{font-size:16px;padding:10px 18px}.samples{grid-template-columns:1fr;gap:20px}.samples a{display:grid;grid-template-columns:40% 1fr;align-items:center}.samples img{border:0;border-right:1px solid var(--line)}.samples span{padding:14px}.samples b{font-size:14px}th,td{padding:13px 12px;font-size:13px}.download-section{padding:38px 20px}.footer{padding:30px 20px}.guide{padding:24px 20px}}@media print{.top,.section-nav,.hero-actions,button,.tabs,.skip,#toast{display:none!important}.section{break-inside:avoid;padding:24px 0}.hero>img{max-height:250px}.guide{padding:0}.guide a{overflow-wrap:anywhere}.recipient{padding:0}.notice{margin:16px 0}body{color:#111}a{color:#111}[hidden]{display:block!important}}
