.hub-hero { background: linear-gradient(180deg, #fff 0%, #f5f6f8 100%); padding: 60px 20px 40px; text-align: center; }
.hub-hero h1 { font-size: 32px; font-weight: 800; letter-spacing: -0.8px; margin: 0 0 12px; }
.hub-hero p { font-size: 15px; color: #8b95a1; margin: 0 auto; max-width: 520px; line-height: 1.6; }
.hub-wrap { max-width: 860px; margin: 0 auto; padding: 0 20px 40px; }
.hub-featured { display: block; background: #fff; border-radius: 18px; overflow: hidden; box-shadow: 0 4px 20px rgba(0,0,0,.05); margin-bottom: 32px; text-decoration: none; color: inherit; transition: transform .15s; }
.hub-featured:hover { transform: translateY(-2px); color: inherit; text-decoration: none; }
.hub-featured .thumb { aspect-ratio: 1200 / 630; background: #eef2f7; }
.hub-featured .thumb img { width: 100%; height: 100%; object-fit: cover; display: block; }
.hub-featured .body { padding: 22px 26px 26px; }
.hub-featured .cat { display: inline-block; background: #191f28; color: #fff; font-size: 11px; font-weight: 800; padding: 3px 10px; border-radius: 20px; margin-bottom: 10px; letter-spacing: 0.3px; }
.hub-featured h2 { font-size: 22px; font-weight: 800; letter-spacing: -0.4px; margin: 0 0 8px; line-height: 1.4; }
.hub-featured .desc { font-size: 14px; color: #8b95a1; line-height: 1.55; margin: 0 0 10px; }
.hub-featured .meta { font-size: 12px; color: #adb5bd; }

.hub-jarvis-promo {
    display: block;
    width: min(520px, 100%);
    margin: 0 auto 28px;
    border-radius: 16px;
    overflow: hidden;
    background: #fff;
    box-shadow: 0 3px 16px rgba(0,0,0,.06);
    text-decoration: none;
    transition: transform .15s, box-shadow .15s;
}
.hub-jarvis-promo:hover { transform: translateY(-2px); box-shadow: 0 8px 22px rgba(0,0,0,.1); text-decoration: none; }
.hub-jarvis-promo img { width: 100%; aspect-ratio: 3 / 2; object-fit: cover; display: block; }

.hub-section-title { font-size: 13px; font-weight: 700; color: #8b95a1; letter-spacing: 0.5px; margin: 0 0 16px; }
.hub-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.hub-card { display: block; background: #fff; border-radius: 16px; overflow: hidden; box-shadow: 0 2px 10px rgba(0,0,0,.04); text-decoration: none; color: inherit; transition: transform .15s, box-shadow .15s; }
.hub-card:hover { transform: translateY(-2px); box-shadow: 0 6px 18px rgba(0,0,0,.08); color: inherit; text-decoration: none; }
.hub-card .thumb { aspect-ratio: 1200 / 630; background: #eef2f7; }
.hub-card .thumb img { width: 100%; height: 100%; object-fit: cover; display: block; }
.hub-card .body { padding: 18px 20px 20px; }
.hub-card .cat { display: inline-block; background: #ebf4ff; color: #3182f6; font-size: 11px; font-weight: 700; padding: 3px 9px; border-radius: 20px; margin-bottom: 8px; }
.hub-card h3 { font-size: 16px; font-weight: 800; letter-spacing: -0.3px; line-height: 1.4; margin: 0 0 6px; }
.hub-card .desc { font-size: 13px; color: #8b95a1; line-height: 1.55; margin: 0 0 8px; }
.hub-card .meta { font-size: 11.5px; color: #adb5bd; }

.hub-tools { background: #fff; border-radius: 16px; padding: 24px; margin: 36px 0; }
.hub-tools h3 { margin: 0 0 14px; font-size: 14px; font-weight: 700; color: #8b95a1; letter-spacing: 0.3px; }
.hub-tools-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.hub-tools-grid a { display: block; padding: 14px; background: #f5f6f8; border-radius: 10px; text-decoration: none; color: #191f28; font-weight: 700; font-size: 14px; text-align: center; transition: background .12s; }
.hub-tools-grid a:hover { background: #ebf4ff; color: #3182f6; }

@media (max-width: 640px) {
    .hub-hero h1 { font-size: 26px; }
    .hub-grid { grid-template-columns: 1fr; }
    .hub-tools-grid { grid-template-columns: 1fr; }
    .hub-featured h2 { font-size: 19px; }
}