/* Product Catalogs / Downloads */
.qing-pc {
    width: 100%;
}

.qing-pc__header {
    text-align: center;
    margin-bottom: 3.5rem;
}

.qing-pc__subtitle {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.3em;
    font-weight: 700;
    color: #196eca;
    margin: 0 0 0.75rem;
}

.qing-pc__title {
    font-family: 'Playfair Display', serif;
    font-weight: 700;
    font-size: 1.875rem;
    color: #0f1d2f;
    margin: 0 0 1rem;
}

@media (min-width: 768px) {
    .qing-pc__title {
        font-size: 2.25rem;
    }
}

.qing-pc__desc {
    max-width: 600px;
    margin: 0 auto;
    font-size: 0.875rem;
    color: #6b7280;
    line-height: 1.6;
}

.qing-pc__grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
}

@media (min-width: 640px) {
    .qing-pc__grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .qing-pc__grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 2rem;
    }
}

/* Card */
.qing-pc__card {
    display: block;
    position: relative;
    overflow: hidden;
    text-decoration: none;
    background: #ffffff;
    border: 1px solid #e5e7eb;
    transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.5s ease, border-color 0.5s ease;
}

.qing-pc__card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: #196eca;
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
    z-index: 2;
}

.qing-pc__card:hover {
    transform: translateY(-6px);
    border-color: transparent;
    box-shadow: 0 25px 50px -15px rgba(0, 0, 0, 0.18);
}

.qing-pc__card:hover::before {
    transform: scaleX(1);
}

/* Thumbnail */
.qing-pc__thumb {
    position: relative;
    overflow: hidden;
    background: #0f1d2f;
    width: 100%;
    height: 200px;
}

.qing-pc__thumb img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100% !important;
    height: 100% !important;
    max-width: 100% !important;
    object-fit: cover;
    opacity: 0.55;
    display: block;
    transition: transform 0.8s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.5s ease;
}

.qing-pc__card:hover .qing-pc__thumb img {
    transform: scale(1.08);
    opacity: 0.75;
}

.qing-pc__thumb-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
}

.qing-pc__thumb-content {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    padding: 1.25rem;
    z-index: 1;
}

.qing-pc__thumb-top {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
}

/* Badge */
.qing-pc__badge {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.25rem 0.6rem;
    font-size: 9px;
    font-weight: 700;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    background: rgba(255, 255, 255, 0.95);
    color: #0f1d2f;
}

.qing-pc__badge.is-new {
    background: #ffffff;
    color: #196eca;
    border: 1px solid #196eca;
}

/* Volume */
.qing-pc__vol {
    font-family: 'Playfair Display', serif;
    color: #196eca;
    font-size: 2.5rem;
    font-weight: 700;
    line-height: 1;
    letter-spacing: -0.02em;
}

/* File Info */
.qing-pc__file-info {
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    color: rgba(255, 255, 255, 0.8);
}

/* Body */
.qing-pc__body {
    padding: 1.5rem;
}

.qing-pc__cat {
    display: block;
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 0.25em;
    font-weight: 700;
    color: #196eca;
    margin-bottom: 0.375rem;
}

.qing-pc__card-title {
    font-family: 'Playfair Display', serif;
    font-weight: 700;
    font-size: 1.125rem;
    color: #0f1d2f;
    line-height: 1.3;
    margin: 0 0 1.25rem;
}

/* Button */
.qing-pc__btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.6rem;
    width: 100%;
    padding: 0.85rem 1.25rem;
    background: #ffffff;
    color: #196eca;
    border: 1px solid #196eca;
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    text-decoration: none;
    position: relative;
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.qing-pc__btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: #196eca;
    transition: left 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    z-index: 0;
}

.qing-pc__btn > * {
    position: relative;
    z-index: 1;
}

.qing-pc__btn svg {
    width: 14px;
    height: 14px;
    flex-shrink: 0;
    position: relative;
    z-index: 1;
    transition: transform 0.4s ease;
}

.qing-pc__card:hover .qing-pc__btn {
    color: #ffffff;
}

.qing-pc__card:hover .qing-pc__btn::before {
    left: 0;
}

.qing-pc__card:hover .qing-pc__btn svg {
    transform: translateY(2px);
}