/* 主题 - 南开(百年学府) */
:root{
  --rq-primary:#1a237e;
  --rq-secondary:#283593;
  --rq-accent:#5c6bc0;
  --rq-soft:#e8eaf6;
  --rq-warm:#FFD66B;
  --rq-grad:linear-gradient(135deg,#0e1442 0%,#1a237e 50%,#283593 100%);
}
.rq-banner{background:var(--rq-grad)}
.rq-banner::before{
  background:
    radial-gradient(700px 460px at 30% 30%, rgba(255,255,255,.20), transparent 60%),
    radial-gradient(900px 500px at 80% 80%, rgba(255,255,255,.12), transparent 60%);
}
.rq-banner::after{
  background-image:
    linear-gradient(transparent 95%, rgba(255,255,255,.10) 95%),
    linear-gradient(90deg, transparent 95%, rgba(255,255,255,.10) 95%);
}
.rq-section-eyebrow{background:rgba(0,0,0,.06);color:#1a237e}
.rq-stats-bar{background:linear-gradient(135deg,#1a237e,#283593)}
.rq-prod-tag{background:#e8eaf6;color:#1a237e}
.rq-cat-intro{background:#e8eaf6}
.rq-faq-item[open] .rq-faq-toggle{background:#1a237e}
.rq-contact-info{background:linear-gradient(135deg,#1a237e,#283593)}
.rq-about-visual{background:linear-gradient(135deg,#1a237e 0%,#283593 50%,#5c6bc0 100%)}
.rq-logo-mark{background:linear-gradient(135deg,#1a237e,#5c6bc0)}
.rq-nav-cta{background:linear-gradient(135deg,#1a237e,#5c6bc0)}
.rq-cat-tab.rq-active{background:linear-gradient(135deg,#1a237e,#5c6bc0)}
.rq-process-step b{background:linear-gradient(135deg,#1a237e,#5c6bc0)}
.rq-industry-dot{background:linear-gradient(135deg,#1a237e,#5c6bc0)}
.rq-banner-eyebrow::before{background:#FFD66B;box-shadow:0 0 0 4px rgba(255,214,107,.25)}
.rq-banner h1 em{color:#FFD66B}