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:root{--ink:#17263c;--muted:#647080;--blue:#2448da;--line:#dfe4ec;--paper:#f4f6f9;--yellow:#f8dc77}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:100px}body{margin:0;background:#fff;color:var(--ink);font-family:"Noto Sans JP","Hiragino Kaku Gothic ProN","Yu Gothic",sans-serif;font-size:16px;line-height:1.9}a{color:inherit;text-underline-offset:5px}button,a,summary{-webkit-tap-highlight-color:transparent}a:focus-visible,summary:focus-visible{outline:3px solid var(--blue);outline-offset:5px}.skip{position:absolute;left:10px;top:-100px;background:white;padding:8px;z-index:9}.skip:focus{top:10px}.preview{background:var(--ink);color:#e2e8f5;text-align:center;font-size:12px;padding:7px 16px;letter-spacing:.08em}.wrap{max-width:1160px;margin:auto;padding:0 36px}header{border-bottom:1px solid var(--line);background:white}header 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li:before{position:absolute;left:0;top:9px;content:"—";color:#8792a6}.note{border-left:3px solid var(--blue);padding:15px 20px;background:var(--paper);font-size:14px;line-height:1.9;margin-top:22px}.note strong{display:block;margin-bottom:4px}.table-wrap{overflow-x:auto;border-top:2px solid var(--ink);margin-top:23px}table{border-collapse:collapse;width:100%;font-size:15px}th,td{text-align:left;border-bottom:1px solid var(--line);padding:17px 15px}th{font-weight:600;background:var(--paper);font-size:13px}td:last-child{font-weight:700}.recommended-row td{background:#f2f5ff}td small{display:block;font-weight:400;font-size:12px;color:var(--blue)}.source-link{font-size:13px;color:var(--muted);margin:12px 0 24px}.source-link a{color:var(--blue)}.feature{display:grid;grid-template-columns:50px 1fr;gap:16px;border-bottom:1px solid var(--line);padding:22px 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0}.closing{background:#edf1ff;padding:32px}.closing h2{font-size:24px;margin:0 0 10px}.closing p{font-size:15px}.closing .button{max-width:380px}.sidebar{align-self:start;position:sticky;top:30px}.sidebar-title{font-size:12px;font-weight:700;letter-spacing:.15em;border-bottom:2px solid var(--ink);padding-bottom:15px}.sidebar a{display:flex;gap:14px;font-size:14px;text-decoration:none;padding:13px 0;border-bottom:1px solid var(--line);color:#516078}.sidebar a span{font-size:12px;color:var(--blue)}.sidebar a:hover{color:var(--blue)}.aside-note{font-size:13px;color:var(--muted);margin-top:30px;line-height:1.9}.aside-note strong{display:block;color:var(--ink);margin-bottom:8px;font-size:14px}.sources{border-top:1px solid var(--line);padding-top:25px}.sources h2{font-size:17px;margin:0 0 15px}.sources p,.sources li{font-size:13px;color:var(--muted)}.sources ul{padding-left:20px}.sources a{color:var(--blue)}footer{margin-top:30px;border-top:1px solid var(--line);padding:32px 0 40px;background:var(--paper)}.footer-inner{display:flex;justify-content:space-between;align-items:start;gap:30px}.footer-inner .brand{font-size:19px}.footer-inner p{font-size:12px;color:var(--muted);margin:8px 0 0}.footer-links{display:flex;gap:20px;font-size:13px}.mobile-cta{display:none}.hub{padding:60px 0 100px;max-width:800px}.hub h1{font-size:38px}.hub-card{display:block;border-top:2px solid var(--ink);border-bottom:1px solid var(--line);padding:28px 0;text-decoration:none;margin-top:35px}.hub-card h2{font-size:24px;margin:10px 0}.hub-card p{color:var(--muted)}.hub-card:hover h2{color:var(--blue)}@media(max-width:1000px){.hero{gap:30px}.article-layout{grid-template-columns:minmax(0,1fr);gap:0}.sidebar{display:none}.hero h1{font-size:34px}}@media(max-width:680px){.wrap{padding:0 22px}.preview{font-size:12px;letter-spacing:0}header .wrap{min-height:72px}.brand{font-size:20px}.mark{width:28px;height:31px;font-size:18px}nav{gap:16px;font-size:13px}nav .active{padding:22px 0}nav .policy-nav{display:none}.crumb{padding:20px 0;font-size:12px}.crumb span{margin:0 7px}.hero{display:block;padding:14px 0 32px}.hero h1{font-size:31px;line-height:1.65;margin:15px 0}.lead{font-size:15px}.summary-card{margin-top:28px;padding:25px}.summary-card h2{font-size:25px;margin-bottom:20px}.price-main{font-size:42px}.section-nav{display:grid;grid-template-columns:1fr 1fr;margin-bottom:38px}.section-nav a{font-size:13px;padding:11px}.section-nav a:nth-child(2){border-right:0}.section-nav a:nth-child(-n+2){border-bottom:1px solid var(--line)}.section-title{gap:12px;align-items:baseline}.section-title h2{font-size:22px}.number{font-size:28px}.article-layout section{margin-bottom:42px}.decision,.compare{grid-template-columns:1fr}.decision>div:first-child{border-right:0;border-bottom:1px solid var(--line)}.decision>div{padding:22px}.compare{gap:12px}.feature{grid-template-columns:38px 1fr;gap:14px}.feature-icon{width:35px;height:35px}.feature h3{font-size:17px}th,td{padding:14px 9px;font-size:13px;white-space:nowrap}.closing{padding:25px}.closing h2{font-size:22px}.footer-inner{display:block}.footer-links{margin-top:22px}.mobile-cta{display:flex;position:sticky;bottom:0;background:#fff;border-top:1px solid var(--line);padding:10px 20px;gap:15px;align-items:center;justify-content:space-between;z-index:5}.mobile-cta span{font-size:12px;line-height:1.5}.mobile-cta .button{font-size:13px;min-height:44px;padding:10px 16px}.hub{padding:30px 0 60px}.hub h1{font-size:30px}footer{padding-bottom:25px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}

/* Quiet single-column reading layout. */
.article-layout{display:block;max-width:880px;margin:0 auto}
.article-layout section{margin-bottom:76px}
.section-title{margin-bottom:28px}
.decision{margin-top:26px}
.feature-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:28px;margin-top:34px}
.feature{display:block;border-bottom:0;border-top:1px solid var(--line);padding:24px 0 8px}
.feature:first-of-type{padding-top:24px}
.feature-icon{margin-bottom:20px}
.feature h3{font-size:17px;margin-bottom:12px}
.feature p{font-size:14px;line-height:1.95}
.sources details,.sources details:first-of-type{border:0;padding:0}
.sources summary{font-size:15px;color:var(--muted)}
.sources details p{margin:18px 0 0}
.closing{padding:38px 42px}
@media(max-width:680px){.article-layout section{margin-bottom:48px}.feature-grid{grid-template-columns:1fr;gap:0;margin-top:18px}.feature{display:grid;grid-template-columns:38px 1fr;gap:14px;padding:22px 0}.feature-icon{margin-bottom:0}.feature p{font-size:15px}.feature h3{margin-bottom:6px}.closing{padding:26px}.hero .lead br{display:none}}

/* Section-specific identity. */
.brand-words{display:flex;flex-direction:column;gap:4px;line-height:1.15}.brand-top{font-size:12px;font-weight:600;letter-spacing:.08em}.brand-main{font-size:24px;font-weight:800;letter-spacing:.04em}.brand .mark{height:42px;width:37px;font-family:Georgia,serif;font-size:25px}.footer-inner .brand-main,footer .brand-main{font-size:19px}.footer-inner .brand-top,footer .brand-top{font-size:12px}@media(max-width:680px){.brand-main{font-size:21px}.brand .mark{width:30px;height:37px;font-size:22px}.brand{gap:9px}}

.page-heading{max-width:880px;padding:58px 0 44px;margin:auto}.legal h2{font-size:22px;margin:0 0 18px}.legal dl{margin:0}.legal dt{font-size:14px;color:var(--muted);margin-top:20px}.legal dd{margin:4px 0 20px;padding-bottom:15px;border-bottom:1px solid var(--line)}.footer-links{flex-wrap:wrap;justify-content:flex-end;gap:12px 20px;max-width:520px}.link-label{color:var(--blue);font-weight:700}.hub-card{margin-top:22px}.article-layout{padding-bottom:20px}@media(max-width:680px){.page-heading{padding:34px 0}.footer-links{justify-content:flex-start}.legal h2{font-size:20px}}
