*{box-sizing:border-box} :root{--ink:#172033;--muted:#657084;--line:#e4e9f1;--blue:#244fc4;--bg:#f6f8fc}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.65 system-ui,-apple-system,"Segoe UI",sans-serif}
.hero{background:linear-gradient(135deg,#eaf0ff,#fff);padding:1.1rem 1.25rem 3.2rem;border-bottom:1px solid var(--line)}
nav{max-width:1100px;margin:auto;display:flex;justify-content:space-between;gap:1rem;align-items:center;font-size:.78rem;color:var(--muted);letter-spacing:.07em}
.brand{font-weight:800;font-size:1rem;letter-spacing:0;color:var(--ink);text-decoration:none}
.intro{max-width:760px;margin:4rem auto 0;text-align:center}.eyebrow{font-size:.76rem;letter-spacing:.16em;font-weight:800;color:var(--blue)}
h1{font-size:clamp(2.3rem,7vw,4.4rem);line-height:1.06;letter-spacing:-.04em;margin:.4rem 0 1rem}
.intro>p:not(.eyebrow){color:var(--muted);max-width:570px;margin:0 auto 1.5rem}
label{display:block;text-align:left;max-width:620px;margin:1.5rem auto .35rem;font-weight:700;font-size:.9rem}
input{width:min(100%,620px);padding:1rem;border:1px solid #cbd4e3;border-radius:12px;font:inherit;background:#fff}
.wrap{max-width:1100px;margin:0 auto;padding:2.5rem 1.25rem 4rem}.section-head{display:flex;justify-content:space-between;align-items:baseline;gap:1rem}
h2{font-size:1.5rem;line-height:1.25}.section-head p{color:var(--muted);font-size:.9rem}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,285px),1fr));gap:1rem}
.card{display:block;background:white;border:1px solid var(--line);border-radius:16px;padding:1.3rem;text-decoration:none;color:inherit;box-shadow:0 4px 18px #17203308}
.card:hover,.card:focus-visible{border-color:#9eb3ef;transform:translateY(-2px)}.tag{color:var(--blue);font-size:.75rem;font-weight:800;letter-spacing:.08em}
.card h3{font-size:1.1rem;line-height:1.35;margin:.55rem 0}.card p{color:var(--muted);font-size:.93rem;margin:0}
.article{max-width:780px;margin:3rem auto;background:white;border:1px solid var(--line);border-radius:18px;padding:clamp(1.2rem,5vw,3rem)}
.article h1{font-size:clamp(2rem,6vw,3.3rem)}.article p{color:#39465a}.back{color:var(--blue);font-weight:700;text-decoration:none}
.notice{margin:2.5rem 0 0;background:#fff9e9;border:1px solid #f0dfaa;border-radius:12px;padding:1rem;color:#5b4b22}
footer{text-align:center;border-top:1px solid var(--line);padding:1.5rem;color:var(--muted);font-size:.88rem}
[hidden]{display:none!important}