:root{color-scheme:light;--ink:#193e35;--muted:#65716a;--brand:#173f35;--cream:#f8f6ef;--line:#dedfd3;--amber:#e7b76a;--white:#fff;--serif:"Yu Mincho","Hiragino Mincho ProN",serif}*{box-sizing:border-box}html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:100px}body{background:var(--cream);color:var(--ink);margin:0;font-family:Noto Sans JP,system-ui,sans-serif;line-height:1.8}a{color:inherit;text-decoration:none}a:hover{color:#7e5923}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible{outline-offset:4px;outline:3px solid #ac761f}img{max-width:100%;height:auto;display:block}button,input,select{font:inherit}button,a,input,select{-webkit-tap-highlight-color:transparent}h1,h2,h3,p{margin-top:0}h1,h2,h3{letter-spacing:.025em;line-height:1.5}h1{font-size:clamp(1.8rem,4vw,2.8rem)}h2{font-size:clamp(1.45rem,3vw,2rem)}h3{font-size:1.1rem}p{margin-bottom:1.2rem}.container{width:min(1180px,100% - 64px);margin-inline:auto}.main-content{min-height:65vh;padding-block:48px 88px}.section{padding-block:76px}.section-white{background:#fff}.section-tint{background:#ecefe6}.section-heading{justify-content:space-between;align-items:end;gap:24px;margin-bottom:32px;display:flex}.section-heading h2{margin:0}.section-heading p{color:var(--muted);max-width:650px;margin:8px 0 0}.eyebrow{letter-spacing:.17em;color:#6d7656;margin-bottom:14px;font-size:.75rem;font-weight:700}.section-link,.text-link{white-space:nowrap;font-size:.85rem;font-weight:700}.section-link{border-bottom:1px solid var(--ink);padding:0 0 3px}.button{background:var(--brand);border:1px solid var(--brand);text-align:center;border-radius:6px;justify-content:center;align-items:center;gap:12px;min-height:48px;padding:12px 23px;font-size:.9rem;font-weight:700;line-height:1.5;display:inline-flex;color:#fff!important}.button:hover{background:#295b48}.button-outline{background:0 0;color:var(--ink)!important}.button-outline:hover{background:#e9ede3}.button-amber{background:var(--amber);border-color:var(--amber);color:var(--ink)!important}.button-amber:hover{background:#eac489}.actions,.product-links{flex-wrap:wrap;gap:12px;display:flex}.muted,.small,.ad-note{color:var(--muted)}.small,.ad-note{font-size:.78rem}.ad-note{margin-top:10px}.skip-link{z-index:20;background:#fff;padding:12px;position:fixed;top:-100px}.skip-link:focus{top:0}.site-header{background:var(--cream);border-bottom:1px solid var(--line)}.header-inner{justify-content:space-between;align-items:center;gap:24px;width:min(1280px,100% - 64px);min-height:96px;margin:auto;display:flex}.brand{letter-spacing:.07em;align-items:center;gap:12px;font-size:1.15rem;font-weight:700;line-height:1.3;display:flex}.brand-mark{background:var(--brand);color:var(--amber);border-radius:50%;place-items:center;width:44px;height:44px;font-size:2rem;display:grid}.brand-small{letter-spacing:.14em;margin-top:4px;font-size:.78rem;display:block}.site-header nav{gap:30px;font-size:.84rem;font-weight:600;display:flex}.site-header nav a{padding:10px 0}.site-header nav a[aria-current]{border-bottom:2px solid var(--brand)}.hero{grid-template-columns:.94fr 1.06fr;max-width:1600px;min-height:580px;margin:auto;display:grid}.hero-copy{padding:80px max(32px,50vw - 590px) 68px;align-self:center;padding-right:46px}.hero h1{font-family:var(--serif);letter-spacing:.055em;white-space:nowrap;margin-bottom:23px;font-size:clamp(2.2rem,3.2vw,3.35rem);line-height:1.6}.hero-lead{color:#55685c;max-width:450px;font-size:.93rem}.hero-photo{min-width:0;position:relative}.hero-photo img{object-fit:cover;width:100%;height:100%}.hero-photo-caption{color:#fff;letter-spacing:.1em;text-shadow:0 1px 8px #000;font-size:.73rem;position:absolute;bottom:24px;left:26px}.hero .actions{margin-top:28px}.hero-facts{color:var(--muted);gap:22px;margin-top:30px;font-size:.75rem;display:flex}.hero-facts b{color:var(--ink);margin-right:4px;font-size:1rem}.intro-strip{background:var(--brand);color:#fff}.intro-strip .container{justify-content:space-between;gap:18px;padding-block:20px;font-size:.81rem;display:flex}.intro-strip span{color:#e4bc77;margin-right:12px;font-weight:700}.path-grid{grid-template-columns:repeat(3,1fr);gap:28px;display:grid}.path-card img{aspect-ratio:16/10;object-fit:cover;border-radius:8px}.path-card h3{margin:20px 0 10px;font-size:1.25rem}.path-card p{color:var(--muted);font-size:.86rem}.path-card .text-link{border-top:1px solid var(--line);justify-content:space-between;padding-top:14px;display:flex}.product-grid{grid-template-columns:repeat(3,1fr);gap:22px;display:grid}.product-card{border:1px solid var(--line);background:#fff;border-radius:10px;flex-direction:column;padding:26px;transition:border-color .2s;display:flex}.product-card:hover{color:var(--ink);border-color:#507260}.product-card-top{color:var(--muted);justify-content:space-between;align-items:center;gap:10px;font-size:.7rem;font-weight:700;display:flex}.model{overflow-wrap:anywhere;font-size:.63rem}.product-card h3{min-height:3.3em;margin:12px 0 22px;font-size:1.04rem}.capacity{align-items:baseline;gap:10px;margin:0 0 14px;display:flex}.capacity strong{font-family:Georgia,serif;font-size:3.1rem;font-weight:400;line-height:1.1}.capacity span{font-size:.82rem}.card-specs{border-top:1px solid var(--line);border-bottom:1px solid var(--line);gap:18px;padding:12px 0;font-size:.71rem;display:flex}.card-specs b{font-size:.96rem;font-weight:600;display:block}.card-description{color:var(--muted);flex:1;margin:18px 0;font-size:.78rem}.product-card .text-link{justify-content:space-between;display:flex}.split-feature{grid-template-columns:1fr 1fr;align-items:center;gap:64px;display:grid}.split-feature img{aspect-ratio:1.2;object-fit:cover;border-radius:8px}.split-feature h2{font-family:var(--serif);font-size:2.3rem;line-height:1.6}.formula{border-left:3px solid var(--amber);background:#fff;margin:25px 0;padding:18px 22px;font-weight:700;line-height:1.9}.article-grid{grid-template-columns:repeat(3,1fr);gap:26px;display:grid}.article-card{border:1px solid var(--line);background:#fff;border-radius:8px;flex-direction:column;display:flex;overflow:hidden}.article-card>img{aspect-ratio:16/9;object-fit:cover;width:100%}.article-card-type{aspect-ratio:16/9;color:#43634a;letter-spacing:.16em;background:#e3e9db;justify-content:space-between;align-items:end;padding:30px;font-size:.7rem;display:flex}.bolt{font-size:3rem;line-height:1}.article-card-body{padding:22px}.article-meta{color:var(--muted);align-items:center;gap:10px;margin-bottom:14px;font-size:.67rem;display:flex}.article-meta time{margin-left:auto}.article-meta b{color:var(--ink);font-family:Georgia,serif;font-size:1.5rem;line-height:1}.article-card h3{margin-bottom:10px;font-size:1rem}.article-card p{color:var(--muted);margin:0;font-size:.76rem}.notice{border:1px solid var(--line);background:#fff;border-radius:8px;padding:24px 28px}.notice p:last-child{margin-bottom:0}.popular-pending{justify-content:space-between;align-items:center;gap:25px;display:flex}.page-intro{max-width:800px;margin-bottom:38px}.page-intro h1{margin-bottom:20px}.page-intro>p:not(.eyebrow){color:var(--muted)}.breadcrumb{color:var(--muted);flex-wrap:wrap;gap:8px;margin:0 0 32px;font-size:.72rem;display:flex}.article-shell{max-width:820px;margin:auto}.article-header{margin-bottom:32px}.article-header .lead{color:var(--muted);font-size:1.02rem}.article-hero{aspect-ratio:16/9;object-fit:cover;border-radius:9px;width:100%;margin:28px 0 35px}.prose{font-size:.95rem;line-height:2}.prose h2{border-bottom:1px solid var(--line);margin:38px 0 20px;padding-top:16px;padding-bottom:16px}.prose h3{margin-top:28px}.prose a{color:#396b4b;text-underline-offset:3px;text-decoration:underline}.prose ul,.prose ol{padding-left:1.5em}.prose li{margin-bottom:10px}.prose table{white-space:normal;font-size:.83rem;display:block;overflow:auto}.prose blockquote{border-left:3px solid var(--amber);background:#fff;margin:24px 0;padding:15px 22px}.toc{background:#edf0e7;border-radius:8px;margin:28px 0;padding:22px 26px}.toc p{margin-bottom:10px;font-size:.9rem;font-weight:700}.toc ul{margin:0;padding-left:1.3em;font-size:.86rem}.sources{overflow-wrap:anywhere;border-top:1px solid var(--line);margin-top:46px;padding-top:25px;font-size:.78rem}.sources ol{padding-left:1.5em}.sources a{text-decoration:underline}.section-break{margin-top:58px}.stat-grid{grid-template-columns:repeat(3,1fr);gap:20px;margin:28px 0;display:grid}.stat{border:1px solid var(--line);background:#fff;border-radius:8px;padding:25px}.stat span{color:var(--muted);margin-bottom:9px;font-size:.76rem;display:block}.stat strong{white-space:nowrap;font-family:Georgia,serif;font-size:2.4rem;font-weight:400}.stat small{margin-left:8px;font-size:.85rem}.product-detail-columns{grid-template-columns:1fr 1fr;gap:26px;margin:32px 0;display:grid}.product-detail-columns section{border:1px solid var(--line);background:#fff;border-radius:8px;padding:25px}.product-detail-columns h2{font-size:1.2rem}.product-detail-columns ul{padding-left:1.2rem;font-size:.88rem}.table-scroll{border:1px solid var(--line);background:#fff;border-radius:8px;overflow:auto}table{border-collapse:collapse;width:100%}th,td{text-align:left;border-bottom:1px solid var(--line);padding:17px 20px;font-size:.84rem}th{background:#edf0e7;font-weight:600}td a{text-underline-offset:3px;text-decoration:underline}.spec-table th{width:35%}.spec-table td{background:#fff}.filters{background:#e9eee3;border-radius:9px;flex-wrap:wrap;align-items:end;gap:18px;margin-bottom:20px;padding:22px;display:flex}.filters label{gap:7px;font-size:.78rem;display:grid}.filters select,.filters input{background:#fff;border:1px solid #c4ccbc;border-radius:5px;max-width:100%;min-height:44px;padding:8px 10px}.filter-count{margin:0 0 10px auto;font-size:.8rem}.compare-table{min-width:850px}.compare-table th:first-child,.compare-table td:first-child{z-index:1;background:#fff;width:220px;min-width:220px;position:sticky;left:0}.compare-table th:first-child{background:#edf0e7}.compare-table td{white-space:nowrap}.compare-table td:first-child{white-space:normal;font-weight:600}.compare-table .button{min-height:40px;padding:9px 12px;font-size:.74rem}.calculator{grid-template-columns:1.2fr .8fr;align-items:start;gap:28px;display:grid}.calculator-form,.calculator-result{border:1px solid var(--line);background:#fff;border-radius:10px;padding:30px}.calculator-form h2,.calculator-result h2{font-size:1.25rem}.load-row{grid-template-columns:1.1fr 1fr 1fr;gap:12px;margin-bottom:15px;display:grid}.load-row label,.efficiency-label{gap:5px;font-size:.77rem;display:grid}.load-row input,.efficiency-label select{background:#fff;border:1px solid #c6ccbf;border-radius:5px;width:100%;min-width:0;min-height:44px;padding:9px}.efficiency-label{max-width:250px;margin:25px 0 10px}.result-number{margin:5px 0;font-family:Georgia,serif;font-size:3.5rem;line-height:1.3}.result-number span{margin-left:10px;font-family:system-ui;font-size:1rem}.calculator-result{background:var(--brand);color:#fff}.calculator-result .small{color:#d1dccf}.calculator-result hr{border:0;border-top:1px solid #456556;margin:23px 0}.calculation-list{margin:30px 0;padding:0;list-style:none}.calculation-list li{border-bottom:1px solid var(--line);grid-template-columns:1fr auto;gap:8px;padding:16px 0;font-size:.85rem;display:grid}.badge{background:#e5edde;border-radius:30px;padding:3px 10px;font-size:.7rem;display:inline-block}.badge-caution{background:#f6e5c8}.field-error{color:#9b3434;font-size:.8rem}.site-footer{background:var(--brand);color:#fff;padding:60px 0 22px}.footer-grid{grid-template-columns:2fr 1fr 1fr;gap:44px;display:grid}.footer-brand{font-size:1.25rem;font-weight:600}.footer-grid p{color:#d3dccc;margin-top:18px;font-size:.86rem}.site-footer a:hover{color:var(--amber)}.footer-grid .small{font-size:.7rem}.footer-grid nav{align-content:start;gap:12px;font-size:.8rem;display:grid}.footer-bottom{color:#c7d2c3;border-top:1px solid #416052;justify-content:space-between;gap:25px;margin-top:42px;padding-top:20px;font-size:.65rem;display:flex}.footer-bottom p{margin:0}@media (width>=1600px){.hero-copy{padding-left:80px}}@media (width<=1000px){.hero-copy{padding:48px 30px}.hero h1{font-size:2.2rem}.hero{min-height:500px}.site-header nav{gap:20px}.product-grid,.article-grid{grid-template-columns:repeat(2,1fr)}.split-feature{gap:36px}.split-feature h2{font-size:1.9rem}.path-grid{gap:20px}.calculator{grid-template-columns:1fr 1fr}.calculator-form,.calculator-result{padding:22px}}@media (width<=700px){html{scroll-padding-top:24px}.container{width:calc(100% - 36px)}.main-content{padding-top:30px;padding-bottom:56px}.header-inner{width:calc(100% - 36px);min-height:0;padding:19px 0 0;display:block}.brand{font-size:1.02rem}.brand-mark{width:39px;height:39px;font-size:1.8rem}.brand-small{font-size:.69rem}.site-header nav{justify-content:space-between;gap:8px;margin-top:15px;font-size:.73rem}.site-header nav a{white-space:nowrap;padding:10px 0 14px}.hero{flex-direction:column;min-height:0;display:flex}.hero-copy{padding:42px 24px 36px}.hero h1{margin-bottom:18px;font-size:2.1rem}.hero-lead{font-size:.84rem}.hero .actions{gap:9px;margin-top:23px}.hero .button{padding:12px 17px;font-size:.78rem}.hero-facts{gap:18px;margin-top:22px}.hero-photo img{aspect-ratio:16/10;height:auto}.hero-photo-caption{font-size:.66rem;bottom:18px;left:22px}.intro-strip .container{flex-direction:column;gap:5px;padding-block:18px;font-size:.73rem}.section{padding-block:48px}.section-heading{margin-bottom:25px;display:block}.section-heading .section-link{margin-top:18px;display:inline-block}.section-heading p{font-size:.85rem}.path-grid{grid-template-columns:1fr;gap:35px}.path-card img{aspect-ratio:16/9}.path-card h3{margin-top:15px}.path-card p{margin-bottom:16px}.product-grid{grid-template-columns:1fr;gap:16px}.product-card{padding:23px}.product-card h3{min-height:0;margin-bottom:22px}.product-card .capacity strong{font-size:3rem}.card-specs{gap:40px}.split-feature{grid-template-columns:1fr;gap:28px}.split-feature img{aspect-ratio:16/10}.split-feature h2{font-size:1.8rem}.article-grid{grid-template-columns:1fr;gap:20px}.article-card-body{padding:20px}.popular-pending{display:block}.popular-pending .button{margin-top:15px}.notice{padding:22px}.page-intro h1{font-size:1.8rem}.page-intro>p{font-size:.88rem}.article-header h1{font-size:1.65rem}.article-header .lead{font-size:.9rem}.prose{font-size:.88rem;line-height:2}.toc{padding:20px}.stat-grid{gap:8px}.stat{padding:16px 12px}.stat span{font-size:.65rem}.stat strong{font-size:1.55rem}.stat small{margin-left:3px;font-size:.63rem}.product-detail-columns{grid-template-columns:1fr;gap:18px}.product-links .button{flex:1;padding:12px 10px;font-size:.77rem}.ad-note{font-size:.7rem}.filters{gap:12px;padding:18px}.filters label{flex:1;min-width:125px}.filter-count{width:100%;margin:0}.compare-table th:first-child,.compare-table td:first-child{overflow-wrap:anywhere;width:145px;min-width:145px;max-width:145px;font-size:.76rem}.compare-table th,.compare-table td{padding:14px 12px}.calculator{grid-template-columns:1fr}.calculator-form,.calculator-result{padding:22px}.load-row{gap:8px}.load-row label{font-size:.68rem}.load-row input{padding:8px 5px}.calculation-list li{display:block}.calculation-list li>span{margin-top:8px;display:block}.footer-grid{grid-template-columns:1fr 1fr;gap:30px}.footer-grid>div{grid-column:1/-1}.site-footer{padding-top:42px}.footer-grid nav{font-size:.75rem}.footer-bottom{font-size:.61rem;display:block}.footer-bottom small{margin-top:15px;display:block}.spec-table th,.spec-table td{padding:14px 12px;font-size:.75rem}.spec-table th{width:34%}}@media (width<=360px){.hero h1{font-size:1.85rem}.hero-copy{padding-inline:19px}.hero .button{padding-inline:12px}.site-header nav{gap:6px;font-size:.67rem}.stat strong{font-size:1.35rem}.stat small{font-size:.58rem}.stat{padding-inline:9px}}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}.product-photo{object-fit:contain;background:#fff;border-radius:8px;width:100%;height:210px;margin:16px 0}.product-hero-grid{grid-template-columns:.8fr 1.2fr;align-items:center;gap:42px;display:grid}.product-hero-photo{border:1px solid var(--line);background:#fff;border-radius:9px;margin:0;padding:22px}.product-hero-photo img{aspect-ratio:1;object-fit:contain;width:100%}.product-hero-photo figcaption{color:var(--muted);margin-top:12px;font-size:.65rem}.product-hero-photo a{text-decoration:underline}@media (width<=700px){.product-hero-grid{grid-template-columns:1fr;gap:25px}.product-hero-photo img{max-height:310px}.product-photo{height:205px}.product-hero-photo{padding:16px}}