:root{--paper:#f8f6ef;--paper-deep:#efede4;--ink:#243e48;--muted:#5b6d6b;--green:#2f6258;--sage:#dfe7de;--line:#d7ddd4;--warm:#ac693f;--serif:'Noto Serif CJK JP','Yu Mincho','Hiragino Mincho ProN',serif;--sans:'Noto Sans CJK JP','Hiragino Kaku Gothic ProN','Yu Gothic',Meiryo,sans-serif}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:35px}body{margin:0;color:var(--ink);background:var(--paper);font-family:var(--sans);font-size:17px;line-height:1.8;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}a:focus-visible{outline:3px solid #b77735;outline-offset:5px;border-radius:3px}button,a{-webkit-tap-highlight-color:transparent}img,svg{max-width:100%;display:block}p,h1,h2,h3{margin:0}h1,h2,h3{font-feature-settings:'palt';text-wrap:pretty}p{overflow-wrap:anywhere}a:hover{color:var(--green)}.skip-link{position:fixed;left:18px;top:-80px;z-index:100;background:white;padding:10px 20px}.skip-link:focus{top:10px}.site-notice{padding:7px 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@media(min-width:1450px){.hero{padding-top:82px;padding-bottom:75px}.hero h1{font-size:56px}}
@media(max-width:1180px){.section,.principles{margin-left:40px;margin-right:40px}.guide-grid{gap:20px}.card-copy{padding:22px 20px 17px}.section-title{align-items:flex-start;flex-direction:column;gap:8px}.before-buy,.about{padding-left:35px;padding-right:35px;gap:35px}.article-layout{gap:35px;grid-template-columns:220px minmax(0,1fr)}}
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@media(max-width:350px){.hero h1{font-size:35px}.site-header{padding:15px}.site-header nav{gap:8px;font-size:10px}.brand{font-size:12px}.brand-bottom{font-size:15px}.brand-mark{width:31px}.hero,.article-wrap{padding-left:18px;padding-right:18px}.section,.principles{margin-left:18px;margin-right:18px}.hero-lead{font-size:13px}.article-header h1{font-size:27px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.guide-card,.button{transition:none}.guide-card:hover{transform:none}}
@media print{.site-notice,.site-header,.site-footer,.toc,.related,.back-guides,.breadcrumb,.hero-art{display:none}.article-layout{display:block}.article-wrap{max-width:none;padding:0}.article-header h1{font-size:25px}.article-body{max-width:none;font-size:12px}.article-cover{display:none}body{background:white}.article-section{break-inside:avoid}a{color:inherit}.sources a:after{content:' (' attr(href) ')';font-size:10px;word-break:break-all}}

/* Product examples: retain the guide's paper-and-green editorial design. */
.product-examples>p{color:var(--muted);font-size:16px;line-height:2}.product-card{border:1px solid #cbd7cb;border-radius:5px;background:#fcfbf7;padding:28px;margin-top:26px}.product-label{display:inline-block;background:var(--sage);color:var(--green);font-size:12px;font-weight:700;letter-spacing:.04em;padding:4px 10px;border-radius:3px}.product-heading h3{font-family:var(--serif);font-size:23px;font-weight:600;line-height:1.65;margin:15px 0 8px;overflow-wrap:anywhere}.product-heading h3 span{font-family:var(--sans);font-size:18px}.article-section .product-model{font-size:12px;color:var(--muted);margin-top:6px}.product-specs{margin:23px 0;border-top:1px solid var(--line);font-size:14px;line-height:1.9}.product-specs>div{display:grid;grid-template-columns:110px minmax(0,1fr);gap:15px;padding:12px 0;border-bottom:1px solid var(--line)}.product-specs dt{font-weight:600;color:var(--green)}.product-specs dd{margin:0;overflow-wrap:anywhere}.product-fit{font-size:15px;line-height:1.95}.product-fit strong{display:block;font-size:13px;margin-bottom:4px;color:var(--green)}.product-fit p+p{margin-top:17px}.article-section .product-caution{font-size:14px;line-height:1.95;background:#eeeee6;padding:15px 17px;margin-top:21px;border-left:3px solid #9aab96}.product-cta{display:flex;justify-content:space-between;align-items:center;gap:12px;width:100%;margin-top:24px;background:var(--green);color:white;padding:15px 19px;border-radius:3px;font-size:15px;font-weight:600;line-height:1.7}.product-cta:hover{background:var(--ink);color:white}.product-cta>span:last-child{font-size:20px}.product-cta small{font-size:12px;font-weight:400}.article-section .product-shop-note{font-size:12px;line-height:1.9;color:var(--muted);margin-top:11px}.product-source{display:inline-block;font-size:12px;color:var(--green);text-decoration:underline;text-underline-offset:4px;margin-top:15px}.affiliate-disclosure{background:#edf0e6;border:1px solid #c6d2c1;border-left:4px solid var(--green);border-radius:3px;padding:17px 20px;font-size:14px;line-height:1.9;margin-top:20px;color:var(--ink)}.affiliate-disclosure strong{display:block;color:var(--green);font-size:14px;margin-bottom:5px}.affiliate-disclosure p{margin:0}.home-ad-note{color:var(--ink)!important}.home-ad-note strong{color:var(--green)}
@media(max-width:560px){.product-card{padding:21px 18px;margin-top:23px}.product-heading h3{font-size:21px}.product-heading h3 span{font-size:17px}.product-specs>div{grid-template-columns:85px minmax(0,1fr);gap:11px;padding:13px 0}.product-specs{font-size:14px}.product-label{font-size:12px}.product-fit{font-size:15px}.article-section .product-caution{padding:13px 14px;font-size:14px}.product-cta{font-size:14px;padding:14px 16px;gap:8px}.affiliate-disclosure{padding:16px;font-size:14px}.affiliate-disclosure strong{font-size:14px}}
@media print{.product-card{break-inside:avoid;background:white}.product-cta{background:white;color:#243e48;border:1px solid #243e48}.affiliate-disclosure{background:white}.product-cta:after{content:'広告リンク';font-size:10px}}