:root{--navy:#00396f;--navy-dark:#002a52;--red:#fa020a;--ink:#1a2b3c;--gray:#556575;--gray-light:#8494a4;--bg:#fff;--bg-alt:#f7f8fa;--border:#e3e7ec;--radius:3px}*{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{color:var(--ink);background:var(--bg);-webkit-font-smoothing:antialiased;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Hiragino Sans,Hiragino Kaku Gothic ProN,PingFang SC,Meiryo,sans-serif;line-height:1.7}a{color:inherit;text-decoration:none}img{max-width:100%;display:block}.container{max-width:1140px;margin:0 auto;padding:0 20px}.site-header{z-index:50;border-bottom:4px solid var(--navy);background:#fff;position:sticky;top:0;box-shadow:0 2px 10px #00396f14}.header-inner{align-items:center;gap:24px;height:64px;display:flex}.brand{letter-spacing:.01em;color:var(--navy);align-items:center;gap:8px;font-size:20px;font-weight:800;display:flex}.brand-mark{font-size:22px}.brand-logo{width:auto;height:24px}.brand-row{align-items:center;gap:8px;display:flex}.footer-mail{color:var(--navy);font-weight:600}.footer-mail:hover{color:var(--red)}.main-nav{color:var(--navy);align-items:center;gap:22px;margin-left:auto;font-size:14px;font-weight:600;display:flex}.main-nav a{white-space:nowrap}.main-nav a:hover{color:var(--red)}.nav-cta{background:var(--navy);border-radius:var(--radius);padding:9px 18px;transition:background .25s;color:#fff!important}.nav-cta:hover{background:var(--red);color:#fff!important}.lang-switch{gap:4px;font-size:12px;display:flex}.lang{border-radius:var(--radius);color:var(--gray);padding:4px 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.15s}.subtab:hover{color:var(--red)}.subtab.active{border-color:var(--navy);color:var(--navy);background:#fff}.product-grid{grid-template-columns:repeat(2,1fr);gap:16px;display:grid}@media (min-width:760px){.product-grid{grid-template-columns:repeat(3,1fr)}}@media (min-width:1024px){.product-grid{grid-template-columns:repeat(4,1fr)}}.product-card{border:1px solid var(--border);border-radius:var(--radius);background:#fff;flex-direction:column;transition:border-color .2s,box-shadow .2s;display:flex;overflow:hidden}.product-card:hover{border-color:var(--red);box-shadow:0 6px 18px #00396f1f}.product-media{aspect-ratio:1;background:var(--bg-alt);justify-content:center;align-items:center;display:flex;overflow:hidden}.product-media img{object-fit:contain;width:100%;height:100%;padding:14px}.product-media-fallback{color:#00396f40;font-size:44px}.product-media-fallback.big{font-size:96px}.product-body{flex-direction:column;flex:1;gap:4px;padding:14px 16px 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