.dr1064faqbrief {
    position: relative;
    overflow: hidden;
    padding: 120px 20px;
    background:
        radial-gradient(circle at top left,
            rgba(0, 212, 255, .18),
            transparent 40%),
        radial-gradient(circle at bottom right,
            rgba(0, 174, 239, .15),
            transparent 40%),
        linear-gradient(135deg,
            #07111f 0%,
            #0b1f3a 50%,
            #08101d 100%);
}

.dr1064faqbrief__bg {
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.dr1064faqbrief::before,
.dr1064faqbrief::after {
    content: "";
    position: absolute;
    border-radius: 50%;
    filter: blur(90px);
    opacity: .35;
}

.dr1064faqbrief::before {
    width: 320px;
    height: 320px;
    background: #00d4ff;
    top: -100px;
    left: -100px;
}

.dr1064faqbrief::after {
    width: 280px;
    height: 280px;
    background: #00aeef;
    bottom: -100px;
    right: -100px;
}

.dr1064faqbrief__container {
    max-width: 1400px;
    margin: auto;
    position: relative;
    z-index: 2;
}

.dr1064faqbrief__header {
    text-align: center;
    max-width: 900px;
    margin: auto auto 70px;
}

.dr1064faqbrief__tag {
    display: inline-flex;
    padding: 12px 24px;
    border-radius: 999px;
    background: rgba(255,255,255,.08);
    border: 1px solid rgba(255,255,255,.15);
    backdrop-filter: blur(18px);
    color: #7ee9ff;
    font-size: .85rem;
    font-weight: 700;
    letter-spacing: 2px;
    margin-bottom: 20px;
}

.dr1064faqbrief__title {
    margin: 0 0 20px;
    font-size: clamp(2.5rem,5vw,4.5rem);
    line-height: 1.1;
    font-weight: 800;
    color: #fff;
}

.dr1064faqbrief__subtitle {
    color: rgba(255,255,255,.82);
    font-size: 1.1rem;
    line-height: 1.8;
}

.dr1064faqbrief__grid {
    display: grid;
    grid-template-columns: 1.4fr .8fr;
    gap: 40px;
}

.dr1064faqbrief__left {
    display: flex;
    flex-direction: column;
    gap: 22px;
}

.dr1064faqbrief__item {
    background: rgba(255,255,255,.06);
    border: 1px solid rgba(255,255,255,.12);
    border-radius: 24px;
    backdrop-filter: blur(18px);
    overflow: hidden;
    transition: .4s ease;
    box-shadow:
        0 20px 40px rgba(0,0,0,.25),
        inset 0 1px 0 rgba(255,255,255,.15);
}

.dr1064faqbrief__item:hover {
    transform: translateY(-6px);
    border-color: rgba(0,212,255,.45);
}

.dr1064faqbrief__item summary {
    list-style: none;
    cursor: pointer;
    padding: 26px 70px 26px 30px;
    position: relative;
    color: #fff;
    font-size: 1.08rem;
    font-weight: 700;
}

.dr1064faqbrief__item summary::-webkit-details-marker {
    display: none;
}

.dr1064faqbrief__item summary::after {
    content: "+";
    position: absolute;
    right: 28px;
    top: 50%;
    transform: translateY(-50%);
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background: linear-gradient(135deg,#00d4ff,#00aeef);
    color: #08101d;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    font-weight: 800;
}

.dr1064faqbrief__item[open] summary::after {
    content: "–";
}

.dr1064faqbrief__item p {
    margin: 0;
    padding: 0 30px 28px;
    color: rgba(255,255,255,.85);
    line-height: 1.9;
}

.dr1064faqbrief__contact-card {
    position: sticky;
    top: 100px;
    padding: 40px;
    border-radius: 30px;
    background:
        linear-gradient(
            145deg,
            rgba(255,255,255,.12),
            rgba(255,255,255,.04)
        );
    border: 1px solid rgba(255,255,255,.15);
    backdrop-filter: blur(25px);
    box-shadow:
        0 30px 60px rgba(0,0,0,.3),
        inset 0 1px 0 rgba(255,255,255,.18);
}

.dr1064faqbrief__contact-card h3 {
    margin: 0 0 15px;
    color: #fff;
    font-size: 1.8rem;
}

.dr1064faqbrief__contact-card p {
    color: rgba(255,255,255,.8);
    line-height: 1.8;
    margin-bottom: 30px;
}

.dr1064faqbrief__contact-item {
    display: flex;
    flex-direction: column;
    gap: 6px;
    padding: 16px 0;
    border-bottom: 1px solid rgba(255,255,255,.08);
}

.dr1064faqbrief__contact-item strong {
    color: #7ee9ff;
}

.dr1064faqbrief__contact-item span,
.dr1064faqbrief__contact-item a {
    color: #fff;
    text-decoration: none;
    line-height: 1.8;
}

.dr1064faqbrief__btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-top: 30px;
    width: 100%;
    padding: 18px;
    border-radius: 16px;
    text-decoration: none;
    font-weight: 800;
    color: #08101d;
    background:
        linear-gradient(
            135deg,
            #00d4ff,
            #00aeef
        );
    transition: .4s ease;
}

.dr1064faqbrief__btn:hover {
    transform: translateY(-4px);
}

@keyframes dr1064faqFloat {
    0%,100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-12px);
    }
}

.dr1064faqbrief__contact-card {
    animation: dr1064faqFloat 6s ease-in-out infinite;
}

@media (max-width: 992px) {

    .dr1064faqbrief__grid {
        grid-template-columns: 1fr;
    }

    .dr1064faqbrief__contact-card {
        position: relative;
        top: auto;
    }

}

@media (max-width: 768px) {

    .dr1064faqbrief {
        padding: 90px 15px;
    }

    .dr1064faqbrief__title {
        font-size: 2.3rem;
    }

    .dr1064faqbrief__contact-card {
        padding: 28px;
    }

    .dr1064faqbrief__item summary {
        padding: 22px 60px 22px 22px;
        font-size: 1rem;
    }

    .dr1064faqbrief__item p {
        padding: 0 22px 22px;
    }

}