.qing-quality-control {
    width: 100%;
    padding: 96px 0;
    background: #0a1628;
    overflow: hidden;
}

.qing-quality-control__container {
    width: 100%;
    max-width: 1440px;
    margin: 0 auto;
    padding: 0 32px;
}

.qing-quality-control__header {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 32px;
    margin-bottom: 48px;
}

.qing-quality-control__eyebrow {
    margin-bottom: 12px;
    color: #2563eb;
    font-size: 14px;
    font-weight: 700;
    letter-spacing: 0.16em;
    line-height: 1.4;
    text-transform: uppercase;
}

.qing-quality-control__title {
    margin: 0;
    color: #fff;
    font-family: Georgia, 'Times New Roman', serif;
    font-size: clamp(36px, 4vw, 56px);
    font-weight: 700;
    line-height: 1.12;
}

.qing-quality-control__nav {
    display: flex;
    gap: 16px;
    margin-bottom: 8px;
}

.qing-quality-control__nav-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    padding: 0;
    border: 1px solid #374151;
    border-radius: 999px;
    background: transparent;
    color: #fff;
    cursor: pointer;
    transition: background 0.3s ease, color 0.3s ease, border-color 0.3s ease;
    user-select: none;
}

.qing-quality-control__nav-button svg {
    width: 18px;
    height: 18px;
}

.qing-quality-control__nav-button:hover {
    background: #fff;
    color: #000;
}

.qing-quality-control__slider {
    position: relative;
    width: 100%;
    overflow: hidden;
    padding-bottom: 32px;
}

.qing-quality-control__track {
    display: flex;
    width: max-content;
    gap: 32px;
    transition: transform 0.7s cubic-bezier(0.25, 1, 0.5, 1);
}

.qing-quality-control__slide {
    flex: 0 0 auto;
    width: 40vw;
    max-width: 700px;
    cursor: pointer;
}

.qing-quality-control__card {
    position: relative;
    overflow: hidden;
    aspect-ratio: 1.333;
    background: #1f2937;
}

.qing-quality-control__image {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 1s ease;
}

.qing-quality-control__slide:hover .qing-quality-control__image {
    transform: scale(1.05);
}

.qing-quality-control__overlay {
    --qing-qc-overlay-start: rgba(0, 0, 0, 0.9);
    --qing-qc-overlay-middle: rgba(0, 0, 0, 0.2);
    position: absolute;
    inset: 0;
    z-index: 2;
    background: linear-gradient(to top, var(--qing-qc-overlay-start), var(--qing-qc-overlay-middle), transparent);
    opacity: 0.8;
}

.qing-quality-control__content {
    position: absolute;
    left: 0;
    bottom: 0;
    z-index: 3;
    width: 100%;
    padding: 40px;
}

.qing-quality-control__step {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
    color: #2563eb;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.16em;
    line-height: 1.4;
    text-transform: uppercase;
}

.qing-quality-control__step::before {
    content: '';
    display: inline-block;
    width: 24px;
    height: 1px;
    background: #2563eb;
}

.qing-quality-control__slide-title {
    margin: 0 0 12px;
    color: #fff;
    font-family: Georgia, 'Times New Roman', serif;
    font-size: clamp(24px, 2.4vw, 30px);
    font-weight: 700;
    line-height: 1.25;
}

.qing-quality-control__description {
    color: #d1d5db;
    font-size: 16px;
    line-height: 1.7;
}

.qing-quality-control__progress {
    position: relative;
    display: block;
    width: 100%;
    height: 2px;
    margin-top: 0;
    background: #1f2937;
}

.qing-quality-control__progress-bar {
    position: absolute;
    left: 0;
    top: 0;
    display: block;
    width: 0;
    height: 100%;
    background: #2563eb;
    transition: width 0.7s ease;
}

.qing-quality-control__mobile-controls {
    display: none;
    align-items: center;
    justify-content: space-between;
    margin-top: 24px;
}

.qing-quality-control__counter {
    color: #6b7280;
    font-size: 14px;
    letter-spacing: 0.16em;
}

.qing-quality-control__current {
    color: #fff;
}

@media (max-width: 767px) {
    .qing-quality-control {
        padding: 64px 0;
    }

    .qing-quality-control__container {
        padding: 0 20px;
    }

    .qing-quality-control__header {
        display: block;
    }

    .qing-quality-control__nav--desktop,
    .qing-quality-control__progress {
        display: none;
    }

    .qing-quality-control__mobile-controls {
        display: flex;
    }

    .qing-quality-control__slider {
        padding-left: 0 !important;
    }

    .qing-quality-control__slide {
        width: 100vw;
        max-width: 100%;
        padding: 0 20px;
    }

    .qing-quality-control__content {
        padding: 28px;
    }
}