:root{--mist: #E8ECF0;--kinari: #D9C9A8;--navy: #0F2A44;--brass: #B89968;--ink: #14202E;--paper: #FAFAF7;--line: rgba(15, 42, 68, .08);--navy-deep: #0A1B2E;--navy-soft: rgba(15, 42, 68, .04);--grid-line: rgba(15, 42, 68, .06);--serif-jp: "Zen Old Mincho", "Yu Mincho", serif;--serif-en: "Lora", "Times New Roman", serif;--sans: "Inter", "Helvetica Neue", system-ui, sans-serif;--sans-jp: "Zen Kaku Gothic New", "Hiragino Sans", "Yu Gothic", sans-serif;--mono: "JetBrains Mono", "Geist Mono", "SF Mono", "Consolas", monospace;--fs-11: .6875rem;--fs-12: .75rem;--fs-13: .8125rem;--fs-14: .875rem;--fs-16: 1rem;--fs-18: 1.125rem;--fs-22: 1.375rem;--fs-28: 1.75rem;--fs-36: 2.25rem;--fs-48: 3rem;--fs-64: 4rem;--fs-88: 5.5rem;--gutter-x: 8%;--gutter-y: 11.111%;--s-4: .25rem;--s-8: .5rem;--s-16: 1rem;--s-24: 1.5rem;--s-32: 2rem;--s-48: 3rem;--s-64: 4rem;--s-96: 6rem;--s-128: 8rem;--ease-kasane: cubic-bezier(.2, .7, .2, 1);--d-fast: .24s;--d-base: .48s;--d-slow: .72s;--stagger: .4s;--r-sm: 2px;--r-md: 4px;--r-lg: 8px;--shadow-soft: 0 12px 40px -12px rgba(15, 42, 68, .18);--shadow-card: 0 1px 0 rgba(15, 42, 68, .04), 0 24px 60px -28px rgba(15, 42, 68, .22);--shadow-tech: 0 0 0 1px rgba(15, 42, 68, .08), 0 8px 32px -8px rgba(15, 42, 68, .12)}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{font-family:var(--sans-jp);font-size:var(--fs-16);line-height:1.8;color:var(--ink);background:var(--paper);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;font-feature-settings:"palt";line-break:strict;word-break:normal;overflow-wrap:normal}p,.section-lead{text-wrap:pretty;word-break:auto-phrase}a{color:inherit;text-decoration:none}img,svg{display:block;max-width:100%;height:auto}.section{padding:var(--s-128) var(--gutter-x);position:relative}.section-grid{background-image:linear-gradient(var(--grid-line) 1px,transparent 1px),linear-gradient(90deg,var(--grid-line) 1px,transparent 1px);background-size:64px 64px;background-position:-1px -1px}.section-num{display:inline-flex;align-items:center;gap:.6rem;font-family:var(--mono);color:var(--brass);font-size:var(--fs-12);letter-spacing:.15em;text-transform:uppercase;margin-bottom:var(--s-16);font-weight:500}.section-num:before{content:"";display:inline-block;width:18px;height:1px;background:var(--brass)}.section-title{font-family:var(--sans-jp);font-weight:600;font-size:var(--fs-48);line-height:1.25;letter-spacing:-.01em;color:var(--navy);margin-bottom:var(--s-24);position:relative}.section-lead{max-width:60ch;font-size:var(--fs-16);line-height:1.85;color:var(--ink);opacity:.72;margin-bottom:var(--s-64)}.bg-mist{background:var(--mist)}.bg-paper{background:var(--paper)}.bg-navy{background:var(--navy);color:#fff}.bg-navy .section-title{color:#fff}.bg-navy .section-lead{color:#ffffffb8}.bg-soft{background:var(--navy-soft)}.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--s-24)}.btn{display:inline-flex;align-items:center;gap:.5rem;padding:.85rem 1.75rem;font-family:var(--sans);font-size:var(--fs-14);font-weight:500;letter-spacing:.03em;text-decoration:none;border-radius:var(--r-sm);transition:all var(--d-fast) var(--ease-kasane);cursor:pointer;border:1px solid transparent;white-space:nowrap}.btn-primary{background:var(--navy);color:#fff;box-shadow:0 1px 2px #0f2a441a}.btn-primary:hover{background:var(--navy-deep);transform:translateY(-1px);box-shadow:0 4px 16px -4px #0f2a4466}.btn-secondary{background:transparent;color:#fff;border-color:#ffffff40}.btn-secondary:hover{border-color:var(--kinari);color:var(--kinari)}.btn-ghost{background:transparent;color:var(--navy);border-color:#0f2a4433}.btn-ghost:hover{background:var(--navy);color:#fff;border-color:var(--navy)}.btn .arrow{transition:transform var(--d-fast);font-family:var(--mono)}.btn:hover .arrow{transform:translate(3px)}.chip{display:inline-flex;align-items:center;gap:.4rem;padding:.25rem .6rem;font-family:var(--mono);font-size:var(--fs-11);letter-spacing:.04em;color:var(--navy);background:#0f2a440f;border:1px solid var(--line);border-radius:var(--r-sm)}.chip-dot:before{content:"";display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--brass)}.reveal{opacity:0;transform:translateY(8px);transition:opacity var(--d-slow) var(--ease-kasane),transform var(--d-slow) var(--ease-kasane)}.reveal.in{opacity:1;transform:translate(0)}.reveal[data-delay="1"]{transition-delay:0ms}.reveal[data-delay="2"]{transition-delay:var(--stagger)}.reveal[data-delay="3"]{transition-delay:calc(var(--stagger) * 2)}@media(max-width:980px){:root{--gutter-x: 5%;--gutter-y: 8%}.grid-3{grid-template-columns:1fr}.section{padding:var(--s-96) var(--gutter-x)}.section-title{font-size:var(--fs-36)}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}.reveal{opacity:1!important;transform:none!important}}.site-header[data-astro-cid-3ef6ksr2]{position:sticky;top:0;z-index:50;background:#fafaf7d9;backdrop-filter:blur(16px) saturate(140%);-webkit-backdrop-filter:blur(16px) saturate(140%);border-bottom:1px solid var(--line);padding:.55rem var(--gutter-x);display:flex;align-items:center;justify-content:space-between;font-family:var(--mono);font-size:var(--fs-12);letter-spacing:.15em;text-transform:uppercase;min-height:60px}.logo[data-astro-cid-3ef6ksr2]{display:inline-flex;align-items:center;text-decoration:none}.logo[data-astro-cid-3ef6ksr2] svg[data-astro-cid-3ef6ksr2]{height:44px;width:auto;display:block}nav[data-astro-cid-3ef6ksr2]{display:flex;gap:.5rem}nav[data-astro-cid-3ef6ksr2] a[data-astro-cid-3ef6ksr2]{color:var(--ink);opacity:.55;text-decoration:none;padding:.4rem .8rem;border-radius:var(--r-sm);transition:opacity var(--d-fast),color var(--d-fast),background var(--d-fast);font-weight:500}nav[data-astro-cid-3ef6ksr2] a[data-astro-cid-3ef6ksr2]:hover{opacity:1;color:var(--navy);background:#0f2a440d}nav[data-astro-cid-3ef6ksr2] a[data-astro-cid-3ef6ksr2].active{opacity:1;color:var(--navy);background:#0f2a440f}@media(max-width:980px){.logo[data-astro-cid-3ef6ksr2] svg[data-astro-cid-3ef6ksr2]{height:36px}nav[data-astro-cid-3ef6ksr2] a[data-astro-cid-3ef6ksr2]{padding:.3rem .5rem;font-size:var(--fs-11)}}.site-footer[data-astro-cid-sz7xmlte]{background:var(--ink);color:#ffffffb3;padding:var(--s-96) var(--gutter-x) var(--s-48);font-family:var(--sans);font-size:var(--fs-14);line-height:1.85}.footer-logo[data-astro-cid-sz7xmlte]{margin-bottom:var(--s-64);padding-bottom:var(--s-48);border-bottom:1px solid rgba(255,255,255,.1)}.footer-logo[data-astro-cid-sz7xmlte] svg[data-astro-cid-sz7xmlte]{max-width:360px;height:auto;width:100%;display:block}h4[data-astro-cid-sz7xmlte]{font-family:var(--serif-jp);color:var(--kinari);font-size:var(--fs-18);font-weight:500;margin-bottom:var(--s-24);letter-spacing:.1em}.foot-grid[data-astro-cid-sz7xmlte]{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--s-48);margin-bottom:var(--s-64)}.foot-grid[data-astro-cid-sz7xmlte] a[data-astro-cid-sz7xmlte]{color:#ffffffb3;transition:color var(--d-fast)}.foot-grid[data-astro-cid-sz7xmlte] a[data-astro-cid-sz7xmlte]:hover{color:var(--kinari)}.foot-bottom[data-astro-cid-sz7xmlte]{border-top:1px solid rgba(255,255,255,.1);padding-top:var(--s-32);display:flex;justify-content:space-between;font-size:var(--fs-12);letter-spacing:.2em;text-transform:uppercase;color:#fff6}@media(max-width:980px){.foot-grid[data-astro-cid-sz7xmlte]{grid-template-columns:1fr;gap:var(--s-32)}.foot-bottom[data-astro-cid-sz7xmlte]{flex-direction:column;gap:var(--s-8)}}.kasane-divider[data-astro-cid-u2l73oy2]{position:relative;height:140px;overflow:hidden}.kasane-divider[data-astro-cid-u2l73oy2].bg-paper{background:var(--paper)}.kasane-divider[data-astro-cid-u2l73oy2].bg-mist{background:var(--mist)}.kasane-divider[data-astro-cid-u2l73oy2] span[data-astro-cid-u2l73oy2]{position:absolute;left:-10%;width:120%;height:14px;transform:rotate(-2deg);transform-origin:left center;border-radius:999px}.kasane-divider[data-astro-cid-u2l73oy2] .b1[data-astro-cid-u2l73oy2]{background:var(--mist);top:32%}.kasane-divider[data-astro-cid-u2l73oy2] .b2[data-astro-cid-u2l73oy2]{background:var(--kinari);top:50%;left:-6%}.kasane-divider[data-astro-cid-u2l73oy2] .b3[data-astro-cid-u2l73oy2]{background:var(--navy);top:68%;left:-2%}.bg-mist[data-astro-cid-u2l73oy2] .b1[data-astro-cid-u2l73oy2]{background:#fff}