:root{--bg: #fffffd;--bg-alt: #fffbed;--surface: #ffffff;--primary: #197f88;--primary-hover: #12636d;--primary-light: #b8dfda;--secondary: #b75c1e;--accent: #ffe18a;--accent-soft: #fff4cb;--blue-pale: #f0faf8;--text: #243b53;--text-muted: #536577;--border: #dce9e6;--card-bg: #ffffff;--shadow: 0 4px 18px rgba(28, 89, 83, .04);--shadow-hover: 0 8px 24px rgba(28, 89, 83, .09);--hero-bg: linear-gradient(125deg, #ffffff 25%, #fffdf4 100%);--section-bg: linear-gradient(135deg, #f3fbf9, #fffef6);--glow-yellow: radial-gradient(circle, rgba(255, 225, 138, .22), transparent 70%);--glow-mint: radial-gradient(circle, rgba(184, 223, 218, .15), transparent 70%);--header-bg: rgba(255, 255, 253, .97);--photo-shadow: drop-shadow(0 8px 18px rgba(28, 89, 83, .07));--sans: "Noto Sans JP", -apple-system, BlinkMacSystemFont, sans-serif;--hand: "Klee One", "Noto Sans JP", cursive}*{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{font-family:var(--sans);color:var(--text);background:var(--bg);line-height:1.75;font-size:17px;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none;transition:color .2s,opacity .2s}a:hover{color:var(--primary)}img{max-width:100%;display:block}.container{max-width:1240px;margin:0 auto;padding:0 1.5rem}.site-header{position:sticky;top:0;background:var(--header-bg);backdrop-filter:blur(12px);border-bottom:1px solid var(--border);box-shadow:var(--shadow);z-index:100}.site-header .container{display:flex;align-items:center;justify-content:space-between;height:64px}.logo{display:inline-flex;align-items:center;flex-shrink:0;border-radius:6px}.logo-image{display:block;width:192px;height:64px;object-fit:contain}.logo:hover{opacity:.85}.nav{display:flex;gap:2rem;font-size:1rem;letter-spacing:.05em}.nav a{color:var(--text-muted);position:relative;padding:.3rem 0;transition:color .2s}.nav a:after{content:"";position:absolute;bottom:0;left:0;width:0;height:2px;background:var(--primary);border-radius:2px;transition:width .25s}.nav a:hover,.nav a.active{color:var(--primary)}.nav a:hover:after,.nav a.active:after{width:100%}.menu-toggle{display:none;background:none;border:none;font-size:1.4rem;cursor:pointer;color:var(--text)}.btn-primary{display:inline-block;padding:.85rem 2.2rem;background:var(--primary);color:var(--surface);font-weight:700;font-size:1rem;border-radius:50px;letter-spacing:.05em;transition:opacity .2s,transform .2s,box-shadow .2s;border:none;cursor:pointer;font-family:inherit;box-shadow:var(--shadow)}.btn-primary:hover{opacity:.92;transform:translateY(-2px);color:var(--surface);box-shadow:var(--shadow-hover)}.btn-outline{display:inline-block;padding:.85rem 2.2rem;background:transparent;color:var(--primary);font-weight:600;font-size:1rem;border-radius:50px;letter-spacing:.05em;transition:all .2s;border:2px solid var(--primary);cursor:pointer;font-family:inherit}.btn-outline:hover{background:#2b4a730f;color:var(--primary);transform:translateY(-2px)}.card{border:1px solid var(--border);background:var(--card-bg);border-radius:16px;padding:1.5rem;transition:all .3s;box-shadow:var(--shadow)}.card:hover{border-color:var(--primary-light);transform:translateY(-3px);box-shadow:var(--shadow-hover)}section{padding:5rem 0}.section-title{font-size:clamp(1.6rem,3vw,2.2rem);font-weight:700;margin-bottom:2.5rem;color:var(--text)}.section-title span{color:var(--primary)}.section-label{font-size:.85rem;letter-spacing:.3em;color:var(--primary);margin-bottom:.6rem;display:block;text-transform:uppercase;font-weight:600}.tag{display:inline-block;padding:.25rem .75rem;background:#2b4a730f;border:1px solid rgba(43,74,115,.2);border-radius:20px;font-size:.85rem;color:var(--primary);letter-spacing:.05em}.site-footer{border-top:1px solid var(--border);padding:2rem 0;text-align:center;font-size:.85rem;color:var(--text-muted);background:var(--surface)}.page-header{padding:5rem 0 3rem;border-bottom:1px solid var(--border);margin-bottom:4rem;background:var(--hero-bg)}.page-header h1{font-size:clamp(2rem,4vw,3rem);font-weight:700;color:var(--text)}@media(max-width:768px){.logo-image{width:168px;height:56px}.nav{display:none}.nav.open{display:flex;flex-direction:column;position:absolute;top:64px;left:0;right:0;background:var(--header-bg);padding:1.5rem;border-bottom:1px solid var(--border);gap:1.2rem;z-index:99;box-shadow:0 8px 20px #2b4a731a}.menu-toggle{display:block}section{padding:3rem 0}}:focus-visible{outline:3px solid var(--primary);outline-offset:5px}section[id],article[id]{scroll-margin-top:6rem}.sr-only{position:absolute;width:1px;height:1px;padding:0;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.text-link{display:inline-block;margin-top:1rem;color:var(--primary);text-decoration:underline;text-underline-offset:.3em;font-size:1rem;font-weight:600}.page-intro{max-width:48rem;margin-top:1.25rem;color:var(--text-muted);font-size:1.125rem}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important}}