/* AGA CHRONICLE design tokens */
:root{--ac-primary:#173A63;--ac-text:#1F2937;--ac-muted:#64748B;--ac-bluegray:#9FB2C8;--ac-bg:#F7F9FC;--ac-white:#FFFFFF;--ac-card:#EEF5FA;--ac-line:#D9E4EE;--ac-radius:10px;--ac-max:1120px;--ac-space:clamp(20px,4vw,56px)}
*{box-sizing:border-box}body{margin:0;background:var(--ac-bg);color:var(--ac-text);font-family:"Noto Sans JP","Hiragino Kaku Gothic ProN",Arial,sans-serif;line-height:1.8}a{color:var(--ac-primary);text-decoration:none}.site-header{background:#fff;border-bottom:1px solid var(--ac-line)}.nav-wrap{max-width:var(--ac-max);margin:auto;display:flex;align-items:center;justify-content:space-between;padding:16px 24px}.brand-img{width:180px;height:auto}.nav{display:flex;gap:20px;font-size:13px}.container{max-width:var(--ac-max);margin:auto;padding:0 24px}.hero{background:linear-gradient(110deg,#fff 0%,#eef6fb 100%);padding:72px 0 48px}.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;align-items:center;gap:40px}.eyebrow{color:var(--ac-muted);letter-spacing:.12em;font-size:12px}.hero h1{font-size:clamp(30px,5vw,58px);line-height:1.35;color:var(--ac-primary);margin:12px 0}.lead{font-size:16px;color:var(--ac-muted)}.character{display:block;max-height:390px;width:auto;margin:auto;filter:drop-shadow(0 18px 22px rgba(23,58,99,.12))}.btn{display:inline-block;background:var(--ac-primary);color:#fff;border-radius:7px;padding:12px 22px;font-weight:700;margin-top:18px}.section{padding:var(--ac-space) 0}.section h2{font-size:24px;color:var(--ac-primary);margin:0 0 20px}.card-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.card{background:#fff;border:1px solid var(--ac-line);border-radius:var(--ac-radius);padding:20px;box-shadow:0 6px 18px rgba(23,58,99,.04)}.card.soft{background:var(--ac-card)}.card h3{margin:0 0 7px;color:var(--ac-primary);font-size:16px}.record-photo{width:100%;aspect-ratio:1.3;object-fit:cover;border-radius:7px;background:var(--ac-card)}.meta{font-size:12px;color:var(--ac-muted)}.timeline{display:grid;grid-template-columns:repeat(5,1fr);gap:10px}.day{border-top:3px solid var(--ac-primary);padding:14px 10px;background:#fff}.facts{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.fact strong{display:block;font-size:24px;color:var(--ac-primary)}.notice{background:#eaf3f9;border-left:4px solid var(--ac-primary);padding:16px}.site-footer{margin-top:50px;background:var(--ac-primary);color:#fff;padding:36px 0;font-size:13px}@media(max-width:760px){.hero-grid{grid-template-columns:1fr}.nav{display:none}.card-grid,.facts{grid-template-columns:repeat(2,1fr)}.timeline{grid-template-columns:repeat(2,1fr)}}