:root{color-scheme:light;--ink:#203542;--muted:#53636c;--line:#dce1e1;--paper:#f5f4f0}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:24px}
body{margin:0;color:var(--ink);background:#fff;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans JP",sans-serif;font-size:16px;line-height:1.9}
a{color:#24546c;text-underline-offset:4px}
a:hover{color:#102b3a}
a:focus-visible,input:focus-visible{outline:3px solid #b26b30;outline-offset:5px}
img{max-width:100%;height:auto}
.guide-header{max-width:1160px;margin:auto;padding:22px 28px;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;align-items:center;gap:24px}
.guide-brand{display:flex;align-items:center;gap:10px;color:var(--ink);font-size:19px;font-weight:700;text-decoration:none}
.guide-header nav,footer nav{display:flex;flex-wrap:wrap;gap:24px}
.guide-header nav a{font-size:14px;text-decoration:none}
main{max-width:1104px;margin:auto;padding:0 28px}
.breadcrumb{font-size:13px;color:var(--muted);margin:24px 0 40px}
.article-header{max-width:850px}
.category{font-size:14px;letter-spacing:.1em;color:var(--muted)}
h1,h2,h3{line-height:1.5;overflow-wrap:anywhere}
h1,h2{font-family:"Yu Mincho","Hiragino Mincho ProN",serif}
h1{font-size:clamp(29px,4vw,46px);font-weight:600;letter-spacing:.035em;margin:14px 0 24px}
.lead{font-size:18px;max-width:740px}
.byline{font-size:14px;margin-top:26px}
.disclosure{font-size:13px;color:var(--muted);margin:8px 0 30px}
.hero-image{display:block;width:100%;height:330px;object-fit:cover;object-position:center;border:1px solid var(--line);margin:0 0 50px}
.reading-layout{display:grid;grid-template-columns:210px minmax(0,1fr);gap:60px}
.contents{align-self:start;position:sticky;top:24px;border-top:2px solid var(--ink);padding:12px 0 24px;font-size:14px}
.contents p{font-weight:600;margin:0 0 12px}
.contents a{display:block;padding:9px 0;text-decoration:none;border-bottom:1px solid var(--line)}
.article-body{min-width:0;max-width:760px}
.article-body section{padding:0 0 42px;margin:0 0 36px;border-bottom:1px solid var(--line)}
h2{font-size:27px;font-weight:600;margin:0 0 22px}
h3{font-size:20px;margin:0 0 14px}
p{margin:0 0 20px}
li{margin:8px 0}
.packing-checks{display:grid;margin:24px 0;border-top:1px solid var(--line)}
.packing-checks label{display:flex;gap:12px;padding:14px 4px;border-bottom:1px solid var(--line);cursor:pointer}
.packing-checks input{width:20px;height:20px;flex:0 0 20px;margin-top:5px;accent-color:var(--ink)}
.packing-checks input:checked+span{color:var(--muted);text-decoration:line-through}
.table-scroll{overflow-x:auto;margin:24px 0}
table{border-collapse:collapse;width:100%;font-size:14px;text-align:left}
th,td{padding:15px 12px;border-bottom:1px solid var(--line);vertical-align:top;min-width:120px}
th{background:var(--paper);font-weight:600}
.choice{padding:30px 0;margin-top:28px;border-top:2px solid var(--ink)}
dl{margin:22px 0}
dl>div{display:grid;grid-template-columns:116px minmax(0,1fr);gap:16px;padding:12px 0;border-bottom:1px solid var(--line)}
dt{font-weight:600;font-size:14px}
dd{margin:0;font-size:15px}
.buy-link{display:inline-flex;gap:15px;justify-content:space-between;align-items:center;max-width:100%;padding:14px 20px;background:var(--ink);color:white;text-decoration:none;font-size:15px;line-height:1.6}
.buy-link:hover{background:#345567;color:#fff}
.important-note{border-left:3px solid #947146;background:#f8f4ed;padding:22px 24px;margin:30px 0}
.important-note h3{font-size:18px}
.important-note p{font-size:15px;margin:0}
figure{margin:28px 0}
figure img{display:block;border:1px solid var(--line)}
figcaption{font-size:14px;color:var(--muted);margin-top:12px}
.editor-note{background:var(--paper);padding:28px;margin-bottom:60px}
.editor-note h2{font-family:inherit;font-size:18px}
.editor-note p,.editor-note a{font-size:14px}
footer{border-top:1px solid var(--line);padding:34px max(28px,calc((100% - 1048px)/2));background:#fafaf8}
footer nav{margin:20px 0;font-size:14px}
footer p{font-size:13px;color:var(--muted)}

@media(max-width:760px){.guide-header{padding:16px 20px;display:block}
.guide-header nav{gap:22px;margin-top:16px}
.guide-brand{font-size:18px}
main{padding:0 20px}
.breadcrumb{margin:20px 0 26px}
.lead{font-size:16px}
.hero-image{height:auto;margin-bottom:30px}
.reading-layout{grid-template-columns:1fr;gap:30px}
.contents{position:static;font-size:14px;padding-bottom:0}
.contents a{padding:10px 0}
h2{font-size:24px}
h3{font-size:19px}
.article-body section{padding-bottom:28px;margin-bottom:30px}
dl>div{grid-template-columns:1fr;gap:5px}
.buy-link{width:100%;font-size:14px}
.important-note,.editor-note{padding:20px}
footer{padding:30px 20px}
}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}
}