@charset "UTF-8";

:root{
  --page-ivory:#fbfaf7;--page-paper:#fff;--page-ink:#292824;--page-muted:#6b685f;
  --page-sage:#748b75;--page-sage-pale:#e7eee5;--page-line:#dddcd5;
  --page-serif:"Noto Serif JP","Hiragino Mincho ProN","Yu Mincho",serif;
  --page-sans:"Noto Sans JP","Hiragino Sans","Yu Gothic",system-ui,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:84px}
body{margin:0;background:var(--page-ivory);color:var(--page-ink);font-family:var(--page-sans);font-size:16px;line-height:1.9;letter-spacing:.02em}
img{display:block;max-width:100%;height:auto}a{color:inherit}p,h1,h2,h3,figure{margin-top:0}.skip-link{position:absolute;left:-9999px}.skip-link:focus{left:16px;top:16px;z-index:20;background:#fff;padding:10px 16px;border:2px solid var(--page-sage)}
.page-header{position:sticky;top:0;z-index:10;background:rgba(251,250,247,.96);border-bottom:1px solid var(--page-line);backdrop-filter:blur(12px)}
.header-inner,.page-wrap{width:min(1120px,calc(100% - 40px));margin-inline:auto}.header-inner{min-height:74px;display:flex;align-items:center;gap:30px}.page-brand{margin-right:auto;text-decoration:none;font-family:var(--page-serif);letter-spacing:.18em;font-size:19px}.page-nav{display:flex;gap:22px;align-items:center}.page-nav a{font-size:13px;text-decoration:none}.page-nav a:hover,.page-nav a:focus-visible{color:var(--page-sage);text-decoration:underline;text-underline-offset:5px}
.breadcrumbs{padding:22px 0 10px;font-size:13px;color:var(--page-muted)}.breadcrumbs ol{list-style:none;padding:0;margin:0;display:flex;gap:9px;flex-wrap:wrap}.breadcrumbs li+li::before{content:"/";margin-right:9px;color:#aaa79e}.breadcrumbs a{text-underline-offset:3px}
.product-hero{padding:40px 0 72px}.hero-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(330px,.82fr);align-items:center;gap:clamp(36px,7vw,88px)}.hero-copy{max-width:650px}.eyebrow{margin-bottom:16px;color:var(--page-sage);font-size:12px;font-weight:700;letter-spacing:.2em;text-transform:uppercase}.product-hero h1,.article-hero h1{font-family:var(--page-serif);font-size:clamp(34px,5vw,58px);font-weight:400;line-height:1.35;letter-spacing:.04em;margin-bottom:20px}.lead{font-size:clamp(17px,2vw,20px);line-height:1.9;color:#45443f}.hero-image{background:#f0eee8;padding:clamp(18px,4vw,42px);border-radius:2px}.hero-image img{width:100%;object-fit:cover}.product-meta{display:flex;gap:10px;flex-wrap:wrap;margin:24px 0}.chip{border:1px solid var(--page-line);border-radius:999px;padding:6px 12px;color:var(--page-muted);font-size:12px;background:#fff}.price{font-family:var(--page-serif);font-size:34px;line-height:1.3;margin:22px 0 4px}.price small{display:block;font-family:var(--page-sans);font-size:12px;color:var(--page-muted)}.price-note{font-size:12px;color:var(--page-muted);line-height:1.65}.buy-button{display:inline-flex;align-items:center;justify-content:center;min-height:52px;margin-top:22px;padding:12px 25px;border-radius:999px;background:var(--page-ink);color:#fff;text-decoration:none;font-weight:700}.buy-button:hover,.buy-button:focus-visible{background:var(--page-sage);outline:3px solid rgba(116,139,117,.2);outline-offset:3px}
.content-section{padding:72px 0;border-top:1px solid var(--page-line)}.content-section.soft{background:var(--page-sage-pale)}.content-grid{display:grid;grid-template-columns:260px minmax(0,1fr);gap:clamp(32px,7vw,92px)}.section-label{font-family:var(--page-serif);font-size:28px;font-weight:400;line-height:1.5}.section-body{max-width:760px}.section-body h2{font-family:var(--page-serif);font-weight:400;font-size:30px;line-height:1.55}.section-body h3{font-size:18px;margin-top:32px}.fact-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin-top:28px}.fact{padding:22px;background:#fff;border:1px solid var(--page-line)}.fact b{display:block;margin-bottom:6px;font-family:var(--page-serif);font-size:18px}.fact span{font-size:14px;color:var(--page-muted)}
.steps{counter-reset:care;list-style:none;padding:0;margin:26px 0}.steps li{counter-increment:care;position:relative;padding:16px 14px 16px 58px;border-top:1px solid var(--page-line)}.steps li::before{content:counter(care,decimal-leading-zero);position:absolute;left:10px;top:15px;color:var(--page-sage);font-family:var(--page-serif);font-size:20px}.steps li:last-child{border-bottom:1px solid var(--page-line)}.notice{padding:20px 22px;border-left:3px solid var(--page-sage);background:#fff;font-size:14px}.source-note{margin-top:24px;font-size:13px;color:var(--page-muted)}.source-note a{text-underline-offset:3px}
.related-list{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}.related-card{display:block;padding:22px;border:1px solid var(--page-line);background:#fff;text-decoration:none}.related-card span{display:block;color:var(--page-sage);font-size:12px;margin-bottom:4px}.related-card:hover,.related-card:focus-visible{border-color:var(--page-sage);transform:translateY(-2px)}
.article-hero{padding:62px 0 74px}.article-hero .lead{max-width:760px}.guide-layout{display:grid;grid-template-columns:220px minmax(0,720px);gap:clamp(34px,8vw,100px)}.guide-toc{align-self:start;position:sticky;top:106px}.guide-toc h2{font-size:13px;letter-spacing:.14em}.guide-toc ol{padding-left:20px;font-size:14px}.guide-toc a{text-underline-offset:4px}.guide-body section{padding:0 0 54px;margin-bottom:54px;border-bottom:1px solid var(--page-line)}.guide-body h2{font-family:var(--page-serif);font-size:30px;font-weight:400;line-height:1.55}.compare-table{width:100%;border-collapse:collapse;margin:22px 0;font-size:14px}.compare-table th,.compare-table td{padding:14px;text-align:left;border:1px solid var(--page-line);vertical-align:top}.compare-table th{background:var(--page-sage-pale)}
.page-footer{padding:48px 0;background:#242a25;color:#f6f5ef}.footer-grid{display:flex;justify-content:space-between;align-items:flex-start;gap:30px}.footer-brand{font-family:var(--page-serif);letter-spacing:.16em}.footer-links{display:flex;gap:18px;flex-wrap:wrap}.footer-links a,.analytics-settings{color:#f6f5ef;font:inherit;font-size:13px;background:none;border:0;text-decoration:underline;text-underline-offset:4px;padding:0;cursor:pointer}.footer-note{margin-top:26px;color:#c8cec7;font-size:12px;max-width:760px}
@media(max-width:800px){.header-inner{min-height:64px;align-items:flex-start;padding-block:14px;flex-wrap:wrap;gap:10px}.page-brand{width:100%}.page-nav{width:100%;overflow:auto;padding-bottom:4px;gap:16px}.page-nav a{white-space:nowrap}.hero-grid,.content-grid,.guide-layout{grid-template-columns:1fr}.product-hero{padding-top:24px}.hero-image{order:-1}.fact-grid,.related-list{grid-template-columns:1fr}.guide-toc{position:static}.footer-grid{display:block}.footer-links{margin-top:22px}.compare-table{display:block;overflow-x:auto}.content-section{padding:54px 0}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.related-card{transition:none}}