.rr-sea-showcase {
    display: grid;
    grid-template-columns: minmax(0, 1.03fr) minmax(0, 0.97fr);
    gap: clamp(1.25rem, 2.5vw, 2rem);
    align-items: start;
}

.rr-sea-diagram-panel {
    min-width: 0;
    padding: clamp(1rem, 2vw, 1.5rem);
    border: 1px solid var(--rr-color-border);
    border-radius: var(--rr-radius-xl);
    background: rgba(255, 255, 255, 0.98);
    box-shadow: var(--rr-shadow-sm);
}

.rr-sea-map {
    position: relative;
    min-width: 0;
    height: 590px;
}

.rr-sea-map__lines {
    position: absolute;
    inset: 0;
    z-index: 1;
    width: 100%;
    height: 100%;
    overflow: visible;
    pointer-events: none;
}

.rr-sea-map__lines path {
    fill: none;
    stroke: rgba(24, 135, 242, 0.78);
    stroke-width: 2;
    vector-effect: non-scaling-stroke;
    stroke-linecap: square;
    stroke-linejoin: miter;
}

.rr-sea-map__card {
    position: absolute;
    z-index: 2;
    min-width: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    border: 1px solid rgba(24, 135, 242, 0.34);
    border-radius: 1rem;
    background:
        linear-gradient(
            145deg,
            rgba(255, 255, 255, 0.99),
            rgba(238, 246, 255, 0.94)
        );
    text-align: center;
}

.rr-sea-map__card span,
.rr-sea-map__card strong,
.rr-sea-map__card small {
    display: block;
}

.rr-sea-map__card span {
    color: var(--rr-color-blue-700);
    font-size: 0.72rem;
    font-weight: 900;
    line-height: 1.35;
    letter-spacing: 0.055em;
    text-transform: uppercase;
}

.rr-sea-map__card strong {
    color: var(--rr-color-heading);
    line-height: 1.35;
}

.rr-sea-map__card small {
    color: var(--rr-color-muted);
    line-height: 1.4;
}

.rr-sea-map__primary {
    top: 0;
    left: 8%;
    width: 84%;
    height: 132px;
    padding: 1.2rem;
    border-color: var(--rr-color-cyan-500);
}

.rr-sea-map__primary strong {
    margin-top: 0.5rem;
    font-size: 1.15rem;
}

.rr-sea-map__primary small {
    margin-top: 0.5rem;
}

.rr-sea-map__support {
    top: 250px;
    width: 31%;
    height: 110px;
    padding: 0.9rem 0.6rem;
}

.rr-sea-map__support--a {
    left: 0;
}

.rr-sea-map__support--b {
    left: 34.5%;
}

.rr-sea-map__support--c {
    left: 69%;
}

.rr-sea-map__support strong {
    margin-top: 0.5rem;
    font-size: 0.98rem;
}

.rr-sea-map__child {
    top: 455px;
    width: 14.5%;
    height: 116px;
    padding: 0.7rem 0.25rem;
}

.rr-sea-map__child--a1 {
    left: 0;
}

.rr-sea-map__child--a2 {
    left: 16.5%;
}

.rr-sea-map__child span {
    font-size: clamp(0.58rem, 0.72vw, 0.68rem);
}

.rr-sea-map__child strong {
    margin-top: 0.55rem;
    font-size: 0.86rem;
}

.rr-sea-feature-panel {
    min-width: 0;
}

.rr-sea-feature-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.8rem;
}

.rr-sea-feature-card {
    min-height: 132px;
    display: grid;
    grid-template-columns: 3.6rem minmax(0, 1fr);
    gap: 0.9rem;
    align-items: start;
    padding: 1.1rem;
    border: 1px solid var(--rr-color-border);
    border-radius: 1rem;
    background: rgba(255, 255, 255, 0.98);
    box-shadow: 0 8px 25px rgba(7, 18, 46, 0.035);
}

.rr-sea-feature-card__icon {
    width: 3.4rem;
    height: 3.4rem;
    display: grid;
    place-items: center;
    border-radius: 50%;
    color: var(--rr-color-blue-600);
    background:
        linear-gradient(
            145deg,
            rgba(220, 237, 255, 0.96),
            rgba(244, 249, 255, 0.99)
        );
}

.rr-sea-feature-card__icon svg {
    width: 2rem;
    height: 2rem;
    fill: none;
    stroke: currentColor;
    stroke-width: 1.9;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.rr-sea-feature-card h3 {
    margin: 0;
    color: var(--rr-color-heading);
    font-size: 1rem;
    line-height: 1.3;
}

.rr-sea-feature-card p {
    margin: 0.35rem 0 0;
    color: var(--rr-color-muted);
    font-size: 0.88rem;
    line-height: 1.55;
}

@media (max-width: 1050px) {
    .rr-sea-showcase {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 760px) {
    .rr-sea-map {
        height: auto;
        display: grid;
        gap: var(--rr-space-4);
    }

    .rr-sea-map__lines {
        display: none;
    }

    .rr-sea-map__card {
        position: static;
        width: 100%;
        height: auto;
        min-height: 108px;
    }

    .rr-sea-map__child {
        min-height: 100px;
    }

    .rr-sea-feature-grid {
        grid-template-columns: 1fr;
    }
}