/* Nền và đường biên kết thúc cho toàn bộ trang Liên hệ. */
.contact-page {
    position: relative;
    border-bottom: 1px solid rgba(234, 239, 157, .42);
    background:
        radial-gradient(circle at 8% 14%, rgba(193, 217, 92, .12), transparent 24%),
        radial-gradient(circle at 91% 72%, rgba(128, 177, 85, .14), transparent 28%),
        linear-gradient(160deg, #073829, #0d4831 58%, #336a29);
}

.contact-main-section {
    border-top: 1px solid rgba(234, 239, 157, .20);
    border-bottom: 1px solid rgba(234, 239, 157, .22);
}

.contact-map-section {
    border-bottom: 4px solid #c1d95c;
}

/* Khối nội dung Liên hệ có nền và viền riêng như mô hình tham chiếu. */
.contact-main-section .contact-main-grid {
    position: relative;
    padding: clamp(18px, 3vw, 30px);
    border: 1px solid rgba(234, 239, 157, .28);
    border-radius: 20px;
    background:
        radial-gradient(circle at 88% 13%, rgba(193, 217, 92, .12), transparent 20%),
        linear-gradient(145deg, rgba(15, 75, 45, .96), rgba(8, 56, 36, .96));
    box-shadow: inset 0 1px rgba(255, 255, 255, .06), 0 22px 42px rgba(3, 37, 21, .22);
}

.contact-main-section .contact-main-grid::after {
    position: absolute;
    right: 28px;
    bottom: 0;
    left: 28px;
    height: 3px;
    border-radius: 999px 999px 0 0;
    background: linear-gradient(90deg, transparent, #c1d95c, #eaef9d, #c1d95c, transparent);
    content: "";
}

@media (max-width: 575.98px) {
    .contact-main-section .contact-main-grid {
        padding: 15px;
        border-radius: 15px;
    }

    .contact-main-section .contact-main-grid::after {
        right: 15px;
        left: 15px;
    }
}