:root{--pb-navy: #0d1b2e;--pb-blue: #2b5e73;--pb-ice: #8fb6cf;--pb-pale: #dde9f3;--pb-offwhite: #f6f7f9;--pb-white: #ffffff;--font-display: "Cormorant Garamond", serif;--font-label: "DM Sans", "Noto Sans JP", sans-serif;--font-body: "Noto Sans JP", system-ui, -apple-system, sans-serif;--navy: var(--pb-navy);--blue: var(--pb-blue);--light: var(--pb-ice);--ice: var(--pb-pale);--off: var(--pb-offwhite);--border: var(--pb-pale);--muted: var(--pb-blue);--max: 1240px;color-scheme:light;font-family:var(--font-body);color:var(--navy);background:var(--off);font-synthesis:none}*{box-sizing:border-box}html{min-width:320px;background:var(--off)}body{margin:0;line-height:1.75}a{color:inherit;text-decoration:none}a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid var(--blue);outline-offset:4px}img{max-width:100%;height:auto}.site-header{min-height:92px;background:#fff;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;gap:24px;padding:18px max(24px,calc((100vw - var(--max)) / 2))}.brand{display:flex;gap:12px;align-items:center;flex-shrink:0}.brand-mark{width:46px;height:46px;display:grid;place-items:center;border-radius:50%;background:var(--navy);color:var(--ice)}.brand-mark svg{width:26px;height:26px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round}.brand>span:last-child{font-family:var(--font-display);font-size:35px;font-weight:500;line-height:.9}.brand small{display:block;font-family:var(--font-label);font-size:12px;letter-spacing:3.5px;margin-top:9px;color:var(--blue)}.site-nav{display:flex;align-items:center;gap:28px;font-size:14px}.site-nav a{color:var(--navy);padding:6px 0;border-bottom:1px solid transparent}.site-nav a:hover,.site-nav a[aria-current=page]{border-bottom-color:var(--blue)}.site-nav .back{display:flex;gap:10px;align-items:center;color:var(--blue)}.site-nav .back span{font-size:18px}main{display:block}.page-shell,.section__inner{max-width:var(--max);margin:0 auto;padding:0 24px}.breadcrumb{display:flex;flex-wrap:wrap;gap:14px;font-size:12px;color:var(--muted);padding:24px 0 0;margin:0;list-style:none}.breadcrumb li+li:before{content:"/";margin-right:14px;color:var(--light)}.breadcrumb a:hover{text-decoration:underline;text-underline-offset:3px}.eyebrow{font-family:var(--font-label);font-size:12px;letter-spacing:2px;color:var(--blue);font-weight:600;margin:0 0 12px;text-transform:uppercase}h1{word-break:auto-phrase;font-size:30px;line-height:1.55;letter-spacing:-.5px;margin:0;font-weight:600}h2{font-size:20px;line-height:1.6;margin:0;font-weight:600}h3{font-size:17px;line-height:1.6;margin:0;font-weight:600}.lead{font-size:16px;color:var(--muted);margin:12px 0 0;line-height:1.8;max-width:760px}.meta{font-family:var(--font-label);font-size:12px;color:var(--blue);letter-spacing:.4px}.summary{font-size:14px;color:var(--muted);line-height:1.8;margin:0}.count{font-size:12px;background:var(--ice);padding:3px 9px;border-radius:20px;color:var(--navy)}.home-intro{max-width:var(--max);margin:0 auto;padding:56px 24px 40px;display:grid;grid-template-columns:minmax(0,1fr) 360px;gap:48px;align-items:end}.home-intro h1{font-size:36px;line-height:1.5}.home-intro .lead{font-size:16px}.home-intro__figure{aspect-ratio:4 / 3;border-radius:10px;border:1px solid var(--border);background:#fff center / cover no-repeat}.actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}.button{display:inline-flex;align-items:center;min-height:46px;padding:10px 18px;border-radius:5px;background:#fff;border:1px solid var(--border);font-size:14px;font-weight:600;color:var(--navy)}.button:hover{border-color:var(--blue)}.button--primary{background:var(--navy);border-color:var(--navy);color:#fff}.button--primary:hover{background:var(--blue);border-color:var(--blue)}.context{max-width:var(--max);margin:0 auto;padding:0 24px}.context>div{display:flex;flex-wrap:wrap;gap:12px 36px;border-top:1px solid var(--border);border-bottom:1px solid var(--border);padding:18px 0;color:var(--muted);font-size:14px}.context b{font-size:18px;margin:0 5px;color:var(--navy);font-weight:500;font-variant-numeric:tabular-nums}.section{padding:48px 0 8px}.section--compact{padding-top:28px}.section-head,.category-block__header{display:flex;justify-content:space-between;align-items:flex-end;gap:16px;padding-bottom:20px}.section-head p,.category-block__header p:not(.eyebrow){margin:6px 0 0;font-size:14px;color:var(--muted)}.section-head>a,.category-block__header>a{font-size:14px;color:var(--blue);white-space:nowrap}.section-head>a:hover,.category-block__header>a:hover{text-decoration:underline;text-underline-offset:3px}.category-block{padding-top:40px}.category-block__header{justify-content:flex-start;align-items:center;gap:10px}.index-grid{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:16px}.index-card{display:flex;flex-direction:column;gap:10px;background:#fff;border:1px solid var(--border);border-radius:10px;padding:20px;transition:border-color .15s,box-shadow .15s}.index-card:hover,.content-card:hover,.tool-card:hover{border-color:var(--blue);box-shadow:0 0 0 1px var(--blue)}.index-card__number{font-family:var(--font-label);font-size:12px;color:var(--blue);letter-spacing:1px}.index-card strong{font-size:17px;font-weight:600}.index-card strong small{display:block;font-family:var(--font-label);font-weight:500;font-size:12px;color:var(--blue);letter-spacing:1px}.index-card__body{display:flex;flex-direction:column;gap:8px;font-size:13px;color:var(--muted);line-height:1.7}.index-card__arrow{margin-top:auto;color:var(--blue)}.popular-panel{display:flex;flex-wrap:wrap;align-items:center;gap:12px 20px}.popular-panel__label{font-size:12px;font-weight:600;letter-spacing:1px;color:var(--blue)}.popular-panel__chips{display:flex;flex-wrap:wrap;gap:8px}.content-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;align-items:stretch}.content-card{display:flex;flex-direction:column;gap:8px;background:#fff;border:1px solid var(--border);border-radius:10px;padding:20px;transition:border-color .15s,box-shadow .15s}.content-card .summary{display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}.term-chip{display:inline-flex;align-items:center;min-height:32px;padding:4px 12px;border-radius:20px;background:#fff;border:1px solid var(--border);font-size:13px;color:var(--navy)}.term-chip:hover{border-color:var(--blue)}.term-chip--large{min-height:38px;font-size:14px;padding:6px 14px}.term-list,.alias-list{display:flex;flex-wrap:wrap;gap:8px;margin:0;padding:0;list-style:none}.alias-list{margin-top:18px}.alias-list li{font-size:12px;color:var(--blue);background:#fff;border:1px solid var(--border);border-radius:4px;padding:4px 9px}.tool-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;margin-top:32px}.tool-card{display:flex;gap:18px;align-items:center;background:#fff;border:1px solid var(--border);border-radius:10px;padding:22px;transition:border-color .15s,box-shadow .15s}.tool-card__icon{width:52px;height:52px;flex-shrink:0;border-radius:50%;background:var(--ice);display:grid;place-items:center}.tool-card__icon span{width:18px;height:18px;border-radius:50%;border:2px solid var(--blue)}.tool-card__body{display:flex;flex-direction:column;gap:4px;font-size:14px;color:var(--muted);line-height:1.7}.tool-card__body strong{font-size:17px;color:var(--navy)}.tool-card__arrow{margin-left:auto;color:var(--blue)}.article-header{padding:0 0 32px}.article-header .eyebrow{margin-top:24px}.article-shell{max-width:var(--max);margin:0 auto;padding:0 24px 64px;display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:40px;align-items:start}.article-body{background:#fff;border:1px solid var(--border);border-radius:10px;padding:40px 48px;font-size:16px;line-height:1.95;min-width:0}.article-body>:first-child{margin-top:0}.article-body p{margin:0 0 1.3em}.article-body h2{font-size:21px;margin:2.4em 0 .9em;padding-top:1.2em;border-top:1px solid var(--border)}.article-body>h2:first-child,.article-body>.detail-box+h2{border-top:0;padding-top:0}.article-body h3{font-size:17px;margin:2em 0 .7em;padding-left:12px;border-left:3px solid var(--blue);line-height:1.6}.article-body a{color:var(--blue);text-decoration:underline;text-underline-offset:3px;text-decoration-color:var(--light)}.article-body a:hover{text-decoration-color:var(--blue)}.article-body ul,.article-body ol{padding-left:1.4em;margin:0 0 1.4em}.article-body li{margin:.3em 0}.article-body li::marker{color:var(--blue)}.article-body strong{font-weight:600;background:linear-gradient(transparent 62%,var(--ice) 62%)}.article-body blockquote{margin:1.6em 0;padding:16px 20px;border-left:4px solid var(--blue);border-radius:0 8px 8px 0;background:var(--off);color:var(--navy);font-size:15px}.article-body blockquote p{white-space:pre-line}.article-body blockquote p:last-child{margin-bottom:0}.article-body code{font-family:var(--font-label);font-size:.9em;background:var(--off);padding:1px 6px;border-radius:4px}.article-body hr{border:0;border-top:1px solid var(--border);margin:2.4em 0}.article-body figure{margin:1.8em 0}.article-body figure img,.article-body p>img{border-radius:8px;border:1px solid var(--border)}.article-body figcaption{font-size:12px;color:var(--muted);margin-top:8px;line-height:1.7}.article-body table,.spec-table{width:100%;border-collapse:collapse;margin:1.4em 0 1.8em;font-size:14px;line-height:1.7;display:block;overflow-x:auto}.article-body table{display:table}.article-body th,.article-body td,.spec-table th,.spec-table td{padding:11px 14px;border-bottom:1px solid var(--border);text-align:left;vertical-align:top}.article-body thead th{background:var(--off);font-size:12px;color:var(--muted);font-weight:600;letter-spacing:.3px;border-bottom-color:var(--light)}.article-body td{font-variant-numeric:tabular-nums}.spec-table{display:table;margin:0}.spec-table th{width:38%;font-size:12px;font-weight:500;color:var(--muted)}.spec-table tr:last-child th,.spec-table tr:last-child td{border-bottom:0}.image-pair{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;margin:28px 0 34px}.article-body .image-pair figure{margin:0}.video-embed{position:relative;overflow:hidden;width:100%;aspect-ratio:16 / 9;margin:22px 0 30px;border-radius:8px;background:var(--navy)}.video-embed iframe{position:absolute;inset:0;width:100%;height:100%;border:0}.side-panel{position:sticky;top:24px;display:grid;gap:16px}.detail-box{background:#fff;border:1px solid var(--border);border-radius:10px;padding:20px}.detail-box h2{font-family:var(--font-body);font-size:13px;font-weight:600;color:var(--blue);letter-spacing:.5px;margin:0 0 14px;padding:0;border:0}.detail-box .summary+.summary{margin-top:6px}.detail-box--wide{padding:0;overflow:hidden;margin-bottom:36px}.detail-box--wide>h2{padding:16px 20px;margin:0;background:var(--off);border-bottom:1px solid var(--border)}.article-body .detail-box--wide h2{font-size:13px}.related-list{list-style:none;margin:0;padding:0}.related-list li{border-top:1px solid var(--border)}.related-list li:first-child{border-top:0}.related-list a{display:flex;flex-direction:column;gap:2px;padding:11px 0;font-size:14px;line-height:1.6}.related-list li:first-child a{padding-top:0}.related-list a:hover strong{color:var(--blue);text-decoration:underline;text-underline-offset:3px}.related-list strong{font-weight:500}.product-spec-grid,.product-spec-list{display:grid;gap:20px}.product-spec-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.product-spec-card{background:#fff;border:1px solid var(--border);border-radius:10px;padding:20px;display:flex;flex-direction:column;gap:8px}.product-spec-card__header{display:flex;gap:12px;align-items:center}.product-spec-card__icon{width:36px;height:36px;border-radius:50%;background:var(--ice);flex-shrink:0}.product-spec-card__type{font-size:12px;color:var(--blue)}.product-spec-card__title{font-size:17px;font-weight:600}.site-footer{border-top:1px solid var(--border);margin-top:48px;background:#fff}.site-footer__inner{max-width:var(--max);margin:0 auto;padding:36px 24px 64px;display:flex;justify-content:space-between;gap:32px;flex-wrap:wrap}.site-footer__brand{max-width:380px}.site-footer__brand .wordmark{font-family:var(--font-display);font-size:26px}.site-footer__brand .wordmark small{font-family:var(--font-label);font-size:12px;margin-left:6px;color:var(--blue);letter-spacing:2px}.site-footer__brand p{font-size:12px;color:var(--muted);line-height:1.8;margin:8px 0 0}.footer-nav{display:flex;gap:48px}.footer-nav section{display:flex;flex-direction:column;gap:8px;font-size:13px}.footer-nav h2{font-family:var(--font-label);font-size:12px;letter-spacing:2px;color:var(--blue);margin:0 0 4px;text-transform:uppercase}.footer-nav a:hover{text-decoration:underline;text-underline-offset:3px}@media(max-width:1100px){.index-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}@media(max-width:960px){.site-header{flex-wrap:wrap}.site-nav{gap:18px;flex-wrap:wrap}.article-shell{grid-template-columns:1fr}.side-panel{position:static}.content-grid,.product-spec-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.home-intro{grid-template-columns:1fr}.home-intro__figure{display:none}}@media(max-width:600px){.site-header{min-height:76px;padding:14px 16px;gap:12px}.brand{gap:8px}.brand-mark{width:36px;height:36px}.brand>span:last-child{font-size:29px}.brand small{font-size:10px;margin-top:6px;letter-spacing:3px}.site-nav{width:100%;gap:6px 16px;font-size:13px}.page-shell,.section__inner,.context,.article-shell,.site-footer__inner{padding-left:16px;padding-right:16px}.home-intro{padding:36px 16px 28px}.home-intro h1{font-size:25px}.home-intro h1 br,.site-nav .back{display:none}h1{font-size:24px}.index-grid,.content-grid,.product-spec-grid,.tool-grid{grid-template-columns:1fr}.article-body{padding:24px 18px;font-size:15px}.article-body h2{font-size:19px}.image-pair{grid-template-columns:1fr}.context>div{gap:8px 20px}.section-head{flex-direction:column;align-items:flex-start}}main>.page-shell:first-child+.section{padding-top:20px}