:root{--ink: #1B1B1F;--paper: #FCFCFC;--brand: #890000;--tint-warm: #F5F0EC;--tint-blue: #EDEFF2;--tint-green: #EDF0EC;--surface: #FFFFFF;--surface-soft: #FFFFFF;--panel: #F0F0F1;--hairline: #E2E2E4;--hairline-2: #D6D6D9;--muted: #4E4E52;--muted-2: #5C5C61;--muted-3: #6A6A6F;--muted-4: #6A6A6F;--due-mid: #6B5119;--due-far: #5C5C61;--radius-sm: 8px;--radius: 12px;--radius-lg: 18px;--radius-pill: 999px;--shadow-tile: 0 1px 2px rgba(27, 27, 31, .04);--shadow-card: 0 1px 3px rgba(27, 27, 31, .06);--container: 1600px;--prose: 820px;--font-heading: "Zen Kaku Gothic New", "YuGothic", "Yu Gothic", "Hiragino Kaku Gothic ProN", system-ui, -apple-system, sans-serif;--font-body: "YuGothic", "Yu Gothic", "Hiragino Kaku Gothic ProN", "Zen Kaku Gothic New", system-ui, -apple-system, sans-serif;--ext-mark-svg: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23000' stroke-width='2.4' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M18 13.5V19a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2V8a2 2 0 0 1 2-2h5.5'/%3E%3Cpath d='M14.5 3H21v6.5'/%3E%3Cpath d='M10.5 13.5 21 3'/%3E%3C/svg%3E")}*,*:before,*:after{box-sizing:border-box}html{-webkit-text-size-adjust:100%}body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--font-body);font-weight:400;font-size:16px;line-height:1.85;letter-spacing:.02em;font-feature-settings:"palt" 1;font-variant-numeric:tabular-nums;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}@media(min-width:768px){body{font-size:17px}}h1,h2,h3,h4{font-family:var(--font-heading);font-weight:500;line-height:1.45;letter-spacing:.05em;margin:0 0 .6em}h1{font-size:1.7rem;letter-spacing:.06em}h2{font-size:1.32rem}h3{font-size:1.1rem}h4{font-size:.95rem}@media(min-width:720px){h1{font-size:2.05rem}h2{font-size:1.46rem}h3{font-size:1.14rem}}p{margin:0 0 1rem}a{color:var(--brand);text-decoration:none}a:hover{text-decoration:underline;text-underline-offset:.2em}a[target=_blank]:not(.ad-slot-body):not(.no-ext-mark):after,.ext-mark:after{content:"";content:"" / "(外部サイト)";display:inline-block;width:.7em;height:.7em;margin-left:.3em;vertical-align:-.02em;background-color:currentColor;-webkit-mask-image:var(--ext-mark-svg);mask-image:var(--ext-mark-svg);-webkit-mask-repeat:no-repeat;mask-repeat:no-repeat;-webkit-mask-position:center;mask-position:center;-webkit-mask-size:contain;mask-size:contain}ul,ol{margin:0 0 1rem;padding-left:1.4em}li{margin-bottom:.4em}img,svg{max-width:100%}:focus-visible{outline:2px solid var(--ink);outline-offset:2px;border-radius:3px}.btn-cta:focus-visible,.chip.on:focus-visible{outline:2px solid var(--ink);outline-offset:3px;box-shadow:0 0 0 3px var(--paper)}a:focus-visible,button:focus-visible,summary:focus-visible,select:focus-visible,input:focus-visible,textarea:focus-visible,.chip:focus-visible,[tabindex]:focus-visible{outline:2px solid var(--ink);outline-offset:2px}summary:focus-visible{border-radius:var(--radius-sm)}.container{width:100%;max-width:var(--container);margin-inline:auto;padding-inline:1.25rem}@media(min-width:1024px){.container{padding-inline:2.5rem}}@media(min-width:1440px){.container{padding-inline:4rem}}.prose{max-width:var(--prose)}.num{font-variant-numeric:tabular-nums}.strong{font-weight:700}.muted{color:var(--muted)}.muted-sm{color:var(--muted-3);font-size:.82rem}.card{background:var(--surface);border:none;border-radius:var(--radius);box-shadow:var(--shadow-card);padding:1.1rem 1.25rem}.tint-warm{background:var(--tint-warm)}.tint-blue{background:var(--tint-blue)}.tint-green{background:var(--tint-green)}.page-hero{position:relative;padding:clamp(2.8rem,9vh,5rem) 4.5rem clamp(2rem,6vh,3rem) 0;margin-bottom:1.5rem}.page-hero .page-hero-kicker{position:absolute;top:1.05rem;right:1.05rem;writing-mode:vertical-rl;font-family:var(--font-heading);font-weight:700;font-size:1.85rem;letter-spacing:.28em;color:var(--ink);margin:0}.page-hero h1{margin:0 0 .8rem}.page-hero-sub{color:var(--muted);font-size:1.05rem;letter-spacing:.04em;line-height:1.8;margin:0;max-width:42em;text-wrap:balance}.h-square:before{content:"";display:inline-block;width:.5em;height:.5em;margin-right:.5em;border-radius:3px;background:var(--ink);vertical-align:middle}.bento-panel{background:var(--panel);border-radius:var(--radius-lg);padding:1.5rem}.bento-tile{background:var(--surface-soft);border-radius:var(--radius-lg);box-shadow:var(--shadow-tile);padding:1.25rem 1.35rem}@media(max-width:640px){.bento-panel{padding:.9rem}.bento-tile{padding:1.05rem 1.1rem}}.chip{display:inline-flex;align-items:center;gap:.35em;border:none;border-radius:var(--radius-pill);background:var(--panel);color:var(--ink);font-size:.82rem;line-height:1;padding:.45em .95em;cursor:pointer;transition:background .15s}.chip:hover{background:var(--hairline)}.chip.on{background:var(--ink);color:#fff}.btn-cta{display:inline-flex;align-items:center;justify-content:center;gap:.4em;background:var(--ink);color:#fff;font-family:var(--font-heading);font-weight:500;font-size:1.02rem;line-height:1.4;text-align:center;text-wrap:balance;padding:.78em 1.7em;border:none;border-radius:var(--radius-lg);box-shadow:var(--shadow-tile);cursor:pointer;transition:transform .15s,box-shadow .15s}.btn-cta:hover{text-decoration:none;transform:translateY(-2px);box-shadow:0 4px 12px #1b1b1f38}.due-soon,.due-mid,.due-far,.due-rolling{display:inline-flex;align-items:center;font-size:.82rem;font-weight:500;line-height:1;padding:.32em .6em;border-radius:var(--radius-sm);border:none;font-variant-numeric:tabular-nums;white-space:nowrap}.due-soon{color:var(--brand);background:#89000012}.due-mid{color:var(--due-mid);background:#a0804824}.due-far{color:var(--muted-2);background:#1b1b1f0e}.due-rolling{color:var(--muted-2);background:#1b1b1f0b}.glow-warm,.glow-blue,.glow-green{position:relative;overflow:hidden}.glow-warm>*,.glow-blue>*,.glow-green>*{position:relative;z-index:1}.visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}@media(prefers-reduced-motion:reduce){*{transition:none!important}}.site-header[data-astro-cid-3ef6ksr2]{position:sticky;top:0;z-index:40;background:#fffffff5}@supports ((backdrop-filter: blur(12px)) or (-webkit-backdrop-filter: blur(12px))){.site-header[data-astro-cid-3ef6ksr2]{background:#ffffffb8;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px)}}.header-inner[data-astro-cid-3ef6ksr2]{display:flex;align-items:center;justify-content:space-between;gap:1rem;padding-block:.9rem}.header-right[data-astro-cid-3ef6ksr2]{display:flex;align-items:center;gap:.9rem}.brand[data-astro-cid-3ef6ksr2]{display:flex;flex-direction:column;gap:.2rem;text-decoration:none;color:var(--ink)}.brand[data-astro-cid-3ef6ksr2]:hover{text-decoration:none}.brand-logo[data-astro-cid-3ef6ksr2]{display:block;width:160px;height:auto}.brand-sub[data-astro-cid-3ef6ksr2]{font-size:.82rem;color:var(--muted-2);letter-spacing:.06em}.header-nav[data-astro-cid-3ef6ksr2]{display:none}.header-nav[data-astro-cid-3ef6ksr2] ul[data-astro-cid-3ef6ksr2]{display:flex;align-items:center;gap:1.6rem;margin:0;padding:0;list-style:none}.header-nav[data-astro-cid-3ef6ksr2] li[data-astro-cid-3ef6ksr2]{margin:0}.header-nav[data-astro-cid-3ef6ksr2] a[data-astro-cid-3ef6ksr2]{display:flex;flex-direction:column;align-items:flex-start;color:var(--ink);text-decoration:none;line-height:1.3;white-space:nowrap}.header-nav[data-astro-cid-3ef6ksr2] a[data-astro-cid-3ef6ksr2]:hover{text-decoration:none}.header-nav[data-astro-cid-3ef6ksr2] a[data-astro-cid-3ef6ksr2]:hover .nav-verb[data-astro-cid-3ef6ksr2]{color:var(--brand)}.nav-verb[data-astro-cid-3ef6ksr2]{font-family:var(--font-heading);font-weight:500;font-size:.98rem;letter-spacing:.04em}.nav-noun[data-astro-cid-3ef6ksr2]{font-size:.82rem;color:var(--muted-3);letter-spacing:.03em}.header-nav[data-astro-cid-3ef6ksr2] a[data-astro-cid-3ef6ksr2][aria-current=page] .nav-verb[data-astro-cid-3ef6ksr2]:before{content:"";display:inline-block;width:.45em;height:.45em;margin-right:.35em;border-radius:2px;background:var(--brand);vertical-align:middle}@media(min-width:1024px){.header-inner[data-astro-cid-3ef6ksr2]{padding-block:1.15rem;gap:2.4rem}.header-right[data-astro-cid-3ef6ksr2]{gap:1.4rem}.brand-logo[data-astro-cid-3ef6ksr2]{width:240px}.brand-sub[data-astro-cid-3ef6ksr2]{font-size:.82rem;letter-spacing:.12em}.header-nav[data-astro-cid-3ef6ksr2]{display:block;margin-left:auto}}.header-clock[data-astro-cid-3ef6ksr2]{margin:0;white-space:nowrap;background:var(--panel);border-radius:var(--radius);box-shadow:var(--shadow-tile);padding:.4rem .75rem}.clock-text[data-astro-cid-3ef6ksr2]{font-size:.82rem;letter-spacing:.04em;color:var(--muted-2);display:inline-block;min-width:16ch;text-align:center}@media(max-width:1023px){.header-clock[data-astro-cid-3ef6ksr2]{display:none}}.nav-toggle[data-astro-cid-3ef6ksr2]{display:inline-flex;align-items:center;gap:.5rem;background:var(--panel);border:none;border-radius:var(--radius-pill);color:var(--ink);font-family:var(--font-heading);font-weight:500;font-size:.88rem;line-height:1;letter-spacing:.06em;padding:.6rem 1rem;cursor:pointer;transition:background .15s}.nav-toggle[data-astro-cid-3ef6ksr2]:hover{background:var(--hairline)}.nav-toggle-mark[data-astro-cid-3ef6ksr2]{display:inline-flex;align-items:center;justify-content:center;width:22px;height:18px}.nav-toggle-mark[data-astro-cid-3ef6ksr2] svg[data-astro-cid-3ef6ksr2]{display:block}.nav-toggle[data-astro-cid-3ef6ksr2] .mark-close[data-astro-cid-3ef6ksr2],.nav-toggle[data-astro-cid-3ef6ksr2][aria-expanded=true] .mark-menu[data-astro-cid-3ef6ksr2]{display:none}.nav-toggle[data-astro-cid-3ef6ksr2][aria-expanded=true] .mark-close[data-astro-cid-3ef6ksr2]{display:block}.nav-toggle-label[data-astro-cid-3ef6ksr2]{white-space:nowrap}@media(max-width:380px){.brand-logo[data-astro-cid-3ef6ksr2]{width:128px}.nav-toggle[data-astro-cid-3ef6ksr2]{padding:.55rem .8rem;gap:.4rem}}@media(max-width:640px){.brand-logo[data-astro-cid-3ef6ksr2]{width:138px}}.site-menu[data-astro-cid-3ef6ksr2]{position:fixed;inset:0;z-index:30;display:flex;flex-direction:column;padding-top:var(--header-h, 72px)}.site-menu[data-astro-cid-3ef6ksr2][hidden]{display:none}.menu-sheet[data-astro-cid-3ef6ksr2]{flex:0 1 auto;min-height:0;overflow-y:auto;-webkit-overflow-scrolling:touch;background:var(--surface);box-shadow:0 8px 20px #1b1b1f1a}.menu-scrim[data-astro-cid-3ef6ksr2]{flex:1 0 3rem;background:#1b1b1f47}.menu-inner[data-astro-cid-3ef6ksr2]{padding-block:1.6rem 1.8rem}.menu-entries[data-astro-cid-3ef6ksr2]{display:grid;grid-template-columns:1fr;gap:.3rem;margin:0 0 2.2rem;padding:0;list-style:none}.menu-entries[data-astro-cid-3ef6ksr2] li[data-astro-cid-3ef6ksr2]{margin:0}.menu-entries[data-astro-cid-3ef6ksr2] a[data-astro-cid-3ef6ksr2]{display:flex;flex-direction:column;gap:.15rem;color:var(--ink);text-decoration:none;border-radius:var(--radius);padding:.85rem .9rem;transition:background .15s}.menu-entries[data-astro-cid-3ef6ksr2] a[data-astro-cid-3ef6ksr2]:hover{background:var(--panel);text-decoration:none}.menu-entries[data-astro-cid-3ef6ksr2] a[data-astro-cid-3ef6ksr2]:hover .entry-verb[data-astro-cid-3ef6ksr2]{color:var(--brand)}.entry-verb[data-astro-cid-3ef6ksr2]{font-family:var(--font-heading);font-weight:500;font-size:1.22rem;letter-spacing:.08em;line-height:1.3}.entry-noun[data-astro-cid-3ef6ksr2]{font-size:.86rem;color:var(--muted-3);letter-spacing:.03em;line-height:1.5}.menu-groups[data-astro-cid-3ef6ksr2]{display:grid;grid-template-columns:1fr;gap:1.4rem;padding-top:.6rem}.menu-group-title[data-astro-cid-3ef6ksr2]{font-family:var(--font-heading);font-weight:500;font-size:.86rem;letter-spacing:.12em;color:var(--muted-2);margin:0 0 .5rem;padding-inline:.9rem}.menu-group[data-astro-cid-3ef6ksr2] ul[data-astro-cid-3ef6ksr2]{margin:0;padding:0;list-style:none}.menu-group[data-astro-cid-3ef6ksr2] li[data-astro-cid-3ef6ksr2]{margin:0}.menu-group[data-astro-cid-3ef6ksr2] a[data-astro-cid-3ef6ksr2]{display:flex;flex-direction:column;gap:.1rem;color:var(--ink);text-decoration:none;border-radius:var(--radius-sm);padding:.6rem .9rem;transition:background .15s}.menu-group[data-astro-cid-3ef6ksr2] a[data-astro-cid-3ef6ksr2]:hover{background:var(--panel);text-decoration:none}.menu-group[data-astro-cid-3ef6ksr2] a[data-astro-cid-3ef6ksr2]:hover .link-label[data-astro-cid-3ef6ksr2]{color:var(--brand)}.link-label[data-astro-cid-3ef6ksr2]{font-size:.98rem;letter-spacing:.03em;line-height:1.5}.link-note[data-astro-cid-3ef6ksr2]{font-size:.82rem;color:var(--muted-3);letter-spacing:.02em;line-height:1.5}.menu-entries[data-astro-cid-3ef6ksr2] a[data-astro-cid-3ef6ksr2][aria-current=page] .entry-verb[data-astro-cid-3ef6ksr2]:before,.menu-group[data-astro-cid-3ef6ksr2] a[data-astro-cid-3ef6ksr2][aria-current=page] .link-label[data-astro-cid-3ef6ksr2]:before{content:"";display:inline-block;width:.45em;height:.45em;margin-right:.45em;border-radius:2px;background:var(--brand);vertical-align:middle}.menu-foot[data-astro-cid-3ef6ksr2]{display:flex;justify-content:flex-end;margin-top:1.4rem}.menu-close[data-astro-cid-3ef6ksr2]{background:var(--panel);border:none;border-radius:var(--radius-pill);color:var(--ink);font-family:var(--font-heading);font-weight:500;font-size:.88rem;line-height:1;letter-spacing:.08em;padding:.65rem 1.4rem;cursor:pointer;transition:background .15s}.menu-close[data-astro-cid-3ef6ksr2]:hover{background:var(--hairline)}@media(min-width:768px){.menu-entries[data-astro-cid-3ef6ksr2]{grid-template-columns:repeat(3,1fr);gap:.6rem}.menu-groups[data-astro-cid-3ef6ksr2]{grid-template-columns:repeat(2,minmax(0,1fr));gap:2.4rem}.menu-inner[data-astro-cid-3ef6ksr2]{padding-block:2rem 2.2rem}.entry-verb[data-astro-cid-3ef6ksr2]{font-size:1.34rem}}.site-footer[data-astro-cid-sz7xmlte]{background:var(--panel);margin-top:4rem}.footer-inner[data-astro-cid-sz7xmlte]{padding-block:2rem 2.4rem}.footer-nav[data-astro-cid-sz7xmlte] ul[data-astro-cid-sz7xmlte]{display:flex;flex-wrap:wrap;gap:.4rem 1.4rem;margin:0 0 .9rem;padding:0;list-style:none}.footer-nav[data-astro-cid-sz7xmlte] a[data-astro-cid-sz7xmlte]{color:var(--ink);text-decoration:none;font-size:.88rem}.footer-nav[data-astro-cid-sz7xmlte] a[data-astro-cid-sz7xmlte]:hover{color:var(--brand);text-decoration:underline}.footer-trust[data-astro-cid-sz7xmlte]{font-size:.82rem;color:var(--muted);margin:0 0 .6rem;letter-spacing:.03em}.footer-meta[data-astro-cid-sz7xmlte]{display:flex;flex-wrap:wrap;gap:.3rem 1rem;margin:0;font-size:.82rem;color:var(--muted-3)}