:root{--ink:#293d3b;--muted:#526663;--paper:#fffdf8;--green:#305c50;--sage:#e9f0df;--pink:#fae9e4;--blue:#e8f1f6;--line:#c9d3ca;--red:#942d29;--red-bg:#fff1ed;--white:#fff;--radius:24px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font-family:"BIZ UDPGothic","Hiragino Maru Gothic ProN","Yu Gothic",Meiryo,sans-serif;font-size:16px;line-height:1.85;overflow-wrap:anywhere}a{color:var(--green);text-underline-offset:5px}button,input{font:inherit}button,a{-webkit-tap-highlight-color:transparent}a:focus-visible,button:focus-visible{outline:3px solid #345f99;outline-offset:5px}button{cursor:pointer}button:disabled{cursor:default}svg{max-width:100%}h1,h2,h3,p{margin:0}h1,h2,h3{line-height:1.5;letter-spacing:.025em}h1{font-size:clamp(28px,3.4vw,44px);font-weight:750}h2{font-size:24px}h3{font-size:19px}p+p{margin-top:12px}ul{padding-left:1.4em}li+li{margin-top:8px}[hidden]{display:none!important}.wrap{width:min(1100px,calc(100% - 48px));margin:auto}.skip{position:absolute;left:12px;top:-100px;background:white;padding:12px;z-index:9}.skip:focus{top:8px}.prototype{background:var(--sage);text-align:center;font-size:14px;padding:8px 20px;color:#354e3a}.site-header{border-bottom:1px solid var(--line);background:var(--paper)}.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:20px 0}.brand{display:flex;align-items:center;gap:12px;color:var(--ink);text-decoration:none;font-weight:750;font-size:21px;flex-shrink:0}.brand svg{width:34px;height:40px}.brand small{display:block;font-size:12px;font-weight:500;letter-spacing:.1em;color:var(--muted)}nav{display:flex;flex-wrap:wrap;gap:6px 24px}nav a{padding:8px 0;text-decoration:none;font-size:15px;color:var(--ink);border-bottom:2px solid transparent}nav a[aria-current=page]{border-color:var(--green);font-weight:700}.ad-note{font-size:14px;color:var(--muted);padding:14px 0}.ad-note 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var(--line);border-radius:var(--radius);padding:27px;background:var(--white)}.card p{margin-top:12px;color:var(--muted)}.card a{margin-top:12px}.card.blue{background:var(--blue)}.card.sage{background:var(--sage)}.card.pink{background:var(--pink)}.card-number{display:block;font-size:14px;font-weight:700;letter-spacing:.1em;margin-bottom:18px}.chip{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:8px 18px;border:1px solid #aabbb0;border-radius:50px;background:#fff;text-decoration:none}.chips{display:flex;gap:12px;flex-wrap:wrap;margin-top:20px}.chips .inactive{color:var(--muted);background:#f1f2ed;border-style:dashed}.notice{padding:22px 26px;border:1px solid var(--line);border-radius:18px;background:#f3f5ec}.notice p{margin-top:8px}.danger{border:2px solid var(--red);border-left-width:7px;background:var(--red-bg);padding:22px 26px;border-radius:8px;color:#6e2421}.danger h2,.danger h3{color:#7e231e}.danger p{margin-top:8px}.warning-icon{display:inline-flex;align-items:center;justify-content:center;width:26px;height:26px;border:2px solid currentColor;border-radius:50%;font-weight:800;margin-right:8px;line-height:1}.split{display:grid;grid-template-columns:1fr 1fr;gap:24px}.footer{border-top:1px solid var(--line);padding:32px 0 26px;background:#f0f2e8}.footer-inner{display:flex;justify-content:space-between;gap:24px}.footer p{font-size:14px;color:var(--muted)}.footer-links{display:flex;gap:12px 24px;flex-wrap:wrap;margin-bottom:20px}.footer a{font-size:14px}.breadcrumbs{font-size:14px;color:var(--muted);margin:8px 0 26px}.breadcrumbs a{margin-right:8px}.page-heading{max-width:790px;margin-bottom:28px}.page-heading h1{margin-bottom:14px}.page-heading p{color:var(--muted)}.meta{font-size:14px;color:var(--muted);margin-top:20px}.article-layout{display:grid;grid-template-columns:minmax(0,740px) 1fr;gap:34px;align-items:start}.article{min-width:0}.article section+section{margin-top:32px}.article h2{margin-bottom:14px}.article h3{margin-bottom:10px}.aside{border:1px solid var(--line);border-radius:20px;padding:24px;background:var(--sage)}.aside a{display:block;padding:8px 0}.aside p{font-size:14px;margin-top:16px}.source{border-top:1px solid var(--line);padding-top:18px;font-size:14px;color:var(--muted)}.source a{font-size:14px}.product{display:flex;gap:16px;align-items:center;padding:20px 0;border-bottom:1px solid var(--line)}.product:last-child{border-bottom:0}.product-icon{width:52px;height:58px;background:var(--blue);border:1px solid #9eafba;border-radius:12px;display:grid;place-items:center;flex-shrink:0;font-weight:700}.product-body{flex:1}.product p{font-size:14px;color:var(--muted)}.product a{font-size:14px}.pr-label{font-size:14px;font-weight:700;margin-top:12px}.table-wrap{border:1px solid 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@media(max-width:850px){.header-inner{align-items:start;flex-direction:column;gap:12px}nav{gap:4px 20px}.hero{padding:32px;grid-template-columns:1fr}.hero-art{display:none}.grid{grid-template-columns:1fr}.split,.article-layout{grid-template-columns:1fr}.aside{order:2}.footer-inner{flex-direction:column}.section-head{display:block}.section-head p{margin-top:8px}.hero h1 br{display:none}}
@media(max-width:480px){.wrap{width:calc(100% - 32px)}.prototype{font-size:13px;padding:8px 16px}.header-inner{padding:16px 0}.brand{font-size:20px}nav{gap:2px 18px}nav a{font-size:14px}.ad-note{font-size:13px;line-height:1.7}.hero{padding:28px 23px;border-radius:24px 30px 24px 30px}.hero h1{font-size:30px}.hero .button{width:100%}.section{margin-top:32px}.card{padding:24px}.danger,.notice{padding:19px}.section-head h2,h2{font-size:22px}.page-heading h1{font-size:28px}.step{padding:23px 20px}.progress{gap:10px}.progress li{font-size:13px}.result .grid{grid-template-columns:1fr}.result h2{font-size:24px}th,td{padding:12px 9px;font-size:16px}thead th:first-child{width:25%}.table-wrap{border-radius:12px}.product{flex-wrap:wrap}.product>.button{width:100%}.footer-links{gap:10px 18px}.breadcrumbs{margin-bottom:20px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important;animation:none!important}}