body {
    background: linear-gradient(180deg, #f7fbff 0%, #eef3f8 100%);
}

.page {
    max-width: 1080px;
    padding: 28px 18px 40px;
}

.hero { background: linear-gradient(135deg, #0f2f52 0%, #1c5faa 65%, #73a6f8 100%); color: #fff; border-radius: 24px; padding: 28px; box-shadow: 0 18px 36px rgba(17, 58, 117, 0.08); }
.hero h1 { margin: 0; font-size: clamp(1.8rem, 3vw, 2.8rem); }
.hero p { margin: 12px 0 0; color: rgba(255, 255, 255, 0.84); line-height: 1.7; }
.nav { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 18px; }
.nav a { text-decoration: none; color: #fff; padding: 10px 14px; border-radius: 999px; background: rgba(255, 255, 255, 0.12); border: 1px solid rgba(255, 255, 255, 0.18); font-weight: 700; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 16px; margin-top: 22px; }
.card { background: #fff; border-radius: 20px; padding: 22px; box-shadow: 0 12px 28px rgba(17, 58, 117, 0.08); }
.card h2 { margin: 0 0 10px; font-size: 1.1rem; }
.card p { margin: 0 0 14px; color: #617289; line-height: 1.7; }
.card a { color: #1459c7; font-weight: 700; text-decoration: none; }
code { display: block; margin-top: 12px; padding: 12px 14px; border-radius: 14px; background: #f3f7fd; color: #214160; overflow-x: auto; }

@media (max-width: 760px) {
    .hero { padding: 22px 18px; }
}