body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Hiragino Sans","Yu Gothic",sans-serif;margin:0;background:#f7f7fa;color:#222;line-height:1.9}
header{background:#111;color:#fff;padding:34px 20px}
.header-inner,.nav-inner,.container,.footer-inner{max-width:1020px;margin:0 auto}
.logo{font-size:30px;font-weight:700;margin:0}
.sub{margin:8px 0 0;opacity:.9}
nav{background:#fff;border-bottom:1px solid #e6e6e6}
.nav-inner{display:flex;gap:18px;flex-wrap:wrap;padding:14px 20px}
nav a{text-decoration:none;color:#333;font-weight:700}
.container{background:#fff;padding:30px 20px 44px}
.hero{width:100%;border-radius:14px;display:block;margin:0 0 26px}
h1,h2,h3{line-height:1.45}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:18px}
.card{border:1px solid #ececec;border-radius:14px;padding:18px;background:#fff}
.cta{background:#fff4f7;border:1px solid #ffd3de;border-radius:14px;padding:18px;margin:24px 0}
.button{display:inline-block;background:#ff3b6b;color:#fff;padding:13px 22px;border-radius:8px;text-decoration:none;font-weight:700}
.button.sub{background:#333}
.article-list li{margin:10px 0}
footer{background:#111;color:#fff;padding:22px 20px;margin-top:40px}
.note{background:#f7f9ff;border-left:4px solid #5c7cfa;padding:14px 16px;border-radius:8px}