/* base */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{font-size:15px;line-height:1.6}
h1,h2,h3,h4,h5,h6{margin:0 0 10px}
img{max-width:100%}
button{font:inherit}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;cursor:pointer;text-decoration:none;font-size:15px;line-height:1.2;white-space:nowrap}
.card{background:#fff}

:root{
--space-1:5px;--space-2:10px;--space-3:15px;--space-4:20px;--space-6:30px;--space-8:40px;
--font-heading:"Arson Pro","Noto Sans","Noto Sans JP",sans-serif;--font-body:"Noto Sans","Noto Sans JP",sans-serif;
--color-bg:#ffffff;--color-surface:#f2f8f5;--color-text:#182420;--color-divider:#e3ebe7;
--color-accent:#00a86b;--color-accent-100:#eafaf2;--color-accent-200:#cdf1e2;--color-accent-300:#9fe4c9;--color-accent-400:#5fd0a8;--color-accent-500:#16b87b;--color-accent-600:#009660;--color-accent-700:#007a4f;--color-accent-800:#075c3d;--color-accent-900:#0a3d2a;
--color-accent-2:#f2a516;--color-accent-2-700:#a86800;
--color-neutral-100:#f7faf9;--color-neutral-200:#eef3f1;--color-neutral-300:#e0e8e4;--color-neutral-400:#c2cec9;--color-neutral-500:#9aa8a2;--color-neutral-600:#75857e;--color-neutral-700:#5c6b64;--color-neutral-800:#3c4a44;--color-neutral-900:#1f2d27;
--radius-sm:8px;--radius-md:12px;--radius-lg:20px;
--shadow-sm:0 1px 3px rgba(20,45,35,.07);--shadow-md:0 4px 16px rgba(20,45,35,.09);--shadow-lg:0 16px 40px rgba(20,45,35,.14);
}
body{margin:0;background:var(--color-bg);color:var(--color-text);font-family:"Noto Sans","Noto Sans JP",sans-serif;font-feature-settings:"palt" 1;-webkit-font-smoothing:antialiased}
h1,h2,h3,h4,summary{font-family:"Arson Pro","Noto Sans","Noto Sans JP",sans-serif;font-weight:700;letter-spacing:-0.01em}
p,dd,span,label,li{letter-spacing:.01em}
a{color:var(--color-accent-700);text-decoration:none;font-weight:500}
a:hover{color:var(--color-accent-600);text-decoration:underline}
:focus-visible{outline:2px solid var(--color-accent);outline-offset:2px}
.btn{border-radius:999px;font-weight:600;font-family:inherit;padding:11px 22px;border:1.5px solid transparent;transition:background .15s,box-shadow .15s,border-color .15s}
.btn-primary{background:var(--color-accent);color:#fff;box-shadow:0 6px 16px rgba(0,168,107,.24)}
.btn-primary:hover{background:var(--color-accent-600);box-shadow:0 8px 22px rgba(0,168,107,.3)}
.btn-secondary{background:#fff;border-color:var(--color-divider);color:var(--color-neutral-900)}
.btn-secondary:hover{background:var(--color-accent-100);border-color:var(--color-accent-300);color:var(--color-accent-700)}
.btn-ghost{color:var(--color-accent-700)}
.card{border:1px solid var(--color-divider);box-shadow:var(--shadow-sm);transition:box-shadow .18s,transform .18s,border-color .18s}
.card:hover{box-shadow:var(--shadow-md);transform:translateY(-2px);border-color:var(--color-accent-300)}
.input,select.input,textarea.input{background:#fff;border:1.5px solid var(--color-divider);border-radius:10px;padding:11px 14px}
.input:hover{border-color:var(--color-accent-300)}
.input:focus{outline:none;border-color:var(--color-accent);box-shadow:0 0 0 3px var(--color-accent-100);padding-bottom:11px}
.wrap{max-width:1200px;margin:0 auto;padding:0 var(--space-8);position:relative;z-index:1}
.wb{display:grid;grid-template-columns:minmax(0,1.02fr) minmax(0,.98fr);gap:var(--space-8);align-items:start}
.stick{position:sticky;top:var(--space-4)}
.hero{display:grid;grid-template-columns:minmax(0,1.08fr) minmax(0,.92fr);gap:var(--space-8);align-items:center}
@media(max-width:900px){.hero{grid-template-columns:1fr;gap:var(--space-6)}}
.g3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--space-6) var(--space-8)}
.g2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:var(--space-6) var(--space-8)}
.f2{display:grid;grid-template-columns:1fr 1fr;gap:var(--space-3)}
.input,select.input,textarea.input{width:100%;font-family:inherit;font-size:15px;color:var(--color-text);background:#fff;border:1.5px solid var(--color-divider);border-radius:10px;padding:11px 14px;transition:border-color .15s,box-shadow .15s}
textarea.input{resize:vertical;min-height:76px;line-height:1.6}
summary{cursor:pointer;list-style:none}
details:not([open]) > p{display:none}
summary::-webkit-details-marker{display:none}
details[open] .mk{transform:rotate(45deg)}
@media(max-width:900px){.wrap{padding:0 var(--space-4)}.wb{grid-template-columns:1fr;gap:var(--space-6)}.stick{position:static}.g3{grid-template-columns:1fr 1fr}}
@media(max-width:560px){.g3,.g2,.f2{grid-template-columns:1fr}}