.lang-switcher[data-astro-cid-a2mxz4y6]{display:inline-flex;align-items:center;gap:8px;font-size:12px;color:var(--text-muted);border:1px solid var(--bg-border);border-radius:6px;padding:7px 8px 7px 10px;background:#fffaf1c2}.lang-switcher[data-astro-cid-a2mxz4y6] select[data-astro-cid-a2mxz4y6]{border:0;background:transparent;color:var(--text-primary);font-size:12px;font-weight:500;max-width:150px;outline:none;cursor:pointer}@media (max-width: 640px){.lang-switcher[data-astro-cid-a2mxz4y6]{width:100%;justify-content:space-between}.lang-switcher[data-astro-cid-a2mxz4y6] select[data-astro-cid-a2mxz4y6]{max-width:none;width:100%}}:root{--font-ui: "Noto Sans JP", system-ui, -apple-system, sans-serif;--font-display: "Noto Sans JP", system-ui, -apple-system, sans-serif;--font-serif: "Noto Serif JP", "Hiragino Mincho ProN", serif;--sb-green: #b33a2e;--sb-green-accent: #191714;--sb-house-green: #191714;--sb-light-green: #ede3d4;--sb-cream: #f7f1e6;--sb-ceramic: #d8cbb6;--sb-white: #fffaf1;--sb-gold: #9b7a45;--sumi: #191714;--ink-soft: #3f3930;--washi: #f7f1e6;--hanko: #b33a2e;--bg-base: var(--washi);--bg-surface: var(--sb-white);--bg-elevated: #f1e8da;--bg-border: var(--sb-ceramic);--text-primary: var(--sumi);--text-secondary: #5d5549;--text-muted: #867b6b;--accent-primary: var(--hanko);--accent-secondary: var(--sumi);--accent-amber: var(--sb-gold);--accent-green: var(--sb-green-accent);--accent-red: #d62020}*,*:before,*:after{box-sizing:border-box}html{font-family:var(--font-ui);color:var(--text-primary);background:var(--bg-base);scroll-behavior:smooth}body{margin:0;min-height:100vh;background:linear-gradient(90deg,rgba(25,23,20,.025) 1px,transparent 1px),linear-gradient(180deg,rgba(25,23,20,.018) 1px,transparent 1px),var(--washi);background-size:72px 72px,72px 72px,auto;letter-spacing:0}.shell{max-width:1120px;margin:0 auto;padding:0 28px}.site-header{position:sticky;top:0;z-index:50;background:#f7f1e6e0;border-bottom:1px solid var(--bg-border);box-shadow:none;backdrop-filter:blur(18px)}.nav-shell{height:84px;display:flex;align-items:center;justify-content:space-between;gap:16px}.brand{text-decoration:none;color:inherit;display:inline-flex;align-items:center;gap:14px}.brand-logo{width:190px;height:auto;display:block}.brand-name{font-family:var(--font-display);font-size:21px;font-weight:700;letter-spacing:0;color:var(--sumi)}.brand-sub{font-size:11px;color:var(--text-secondary);font-weight:500;letter-spacing:.18em;text-transform:uppercase}.top-nav{display:flex;align-items:center;gap:4px}.top-nav a,.nav-tools-trigger{text-decoration:none;font-size:13px;font-weight:500;color:var(--ink-soft);padding:10px 14px;border-radius:6px;transition:all .2s ease;letter-spacing:0;border:0;background:transparent;font-family:inherit;cursor:pointer}.top-nav a:hover,.nav-tools-trigger:hover,.nav-dropdown-wrapper:focus-within .nav-tools-trigger{background:#b33a2e14;color:var(--hanko)}.nav-dropdown-wrapper{position:relative;display:inline-flex;padding-bottom:10px;margin-bottom:-10px}.nav-dropdown{display:none;position:absolute;top:100%;left:0;margin-top:0;background:var(--sb-white);border:1px solid var(--bg-border);border-radius:8px;padding:12px;min-width:220px;flex-direction:column;gap:4px;z-index:100;box-shadow:0 18px 40px #19171414}.nav-dropdown-wrapper:hover .nav-dropdown,.nav-dropdown-wrapper:focus-within .nav-dropdown{display:flex}.nav-dropdown a{padding:12px 16px;border-radius:6px}.nav-actions{display:flex;align-items:center;gap:16px}.btn-ghost,.btn-solid{border-radius:6px;height:44px;padding:0 20px;font-size:13px;font-weight:600;text-decoration:none;cursor:pointer;transition:all .2s ease;display:inline-flex;align-items:center;justify-content:center;text-transform:none;white-space:nowrap}.btn-ghost{color:var(--sumi);background:transparent;border:1px solid var(--sumi)}.btn-ghost:hover{background:#1917140d}.btn-solid{background:var(--sumi);border:none;color:var(--washi)}.btn-solid:hover{background:var(--hanko);transform:translateY(-1px)}.site-footer{margin-top:80px;padding:80px 0;background:#eee3d2;border-top:1px solid var(--sb-ceramic)}.footer-shell{display:flex;flex-direction:column;gap:40px}.footer-links{display:flex;align-items:center;gap:32px;flex-wrap:wrap}.footer-links a{text-decoration:none;color:var(--sumi);font-size:15px;font-weight:600;transition:color .2s}.footer-links a:hover{color:var(--hanko)}@media (max-width: 980px){.top-nav{display:none}}@media (max-width: 640px){.nav-shell{height:auto;padding-top:24px;padding-bottom:24px;flex-wrap:wrap}.brand{max-width:calc(100% - 8px)}.brand-logo{width:168px}.brand-sub{display:none}.nav-actions{width:100%;gap:12px;flex-wrap:nowrap}.nav-actions .btn-ghost,.nav-actions .btn-solid{flex:0 0 auto;min-width:78px}.btn-ghost,.btn-solid{height:44px;padding:0 20px}}