.extractor-category-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 22px;
}

.extractor-category-card {
    min-width: 0;
    height: 100%;
    background: #fff;
    border: 1px solid rgba(0, 0, 0, .06);
    border-radius: 14px;
    transition: transform .25s ease, border-color .25s ease, box-shadow .25s ease;
}

.extractor-category-card:hover {
    transform: translateY(-6px);
    border-color: rgba(0, 102, 255, .3);
    box-shadow: 0 12px 35px rgba(0, 0, 0, .06);
}

.extractor-category-card > a {
    min-height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 28px 20px;
    color: #333;
    text-align: center;
    text-decoration: none;
}

.extractor-category-image {
    width: 100%;
    height: 240px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
}

.extractor-category-image img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.extractor-category-card h2,
.extractor-category-card h3 {
    min-height: 3em;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 0 14px;
    font-size: 1.16rem;
    line-height: 1.3;
}

.extractor-category-action {
    display: inline-block;
    margin-top: auto;
    padding: 7px 18px;
    color: #fff;
    background: linear-gradient(135deg, #FF6B35, #0066FF);
    border-radius: 20px;
    font-size: .84rem;
    font-weight: 600;
}

.extractor-arm-detail-page .product-detail { padding: 88px 0 72px; }
.extractor-arm-detail-page #detail-content { max-width: none; }
.extractor-page-heading { margin: 20px 0 28px; }

.extractor-page-heading h1,
.extractor-specification h2 {
    margin: 0;
    line-height: 1.2;
    background: linear-gradient(135deg, #F24A11, #0032FF);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.extractor-page-heading h1 { font-size: clamp(2rem, 4vw, 2.5rem); }
.extractor-specification { margin: 0 0 28px; }
.extractor-specification h2 { margin-bottom: 12px; font-size: 1.8rem; }

.extractor-specification-placeholder {
    padding: 22px 26px;
    color: #526783;
    background: #f7f9fc;
    border: 1px dashed #b8c6d8;
    border-radius: 12px;
}

.extractor-specification-placeholder span {
    display: block;
    margin-bottom: 7px;
    color: #276887;
    font-size: .82rem;
    font-weight: 700;
    letter-spacing: .09em;
    text-transform: uppercase;
}

.extractor-specification-placeholder p { margin: 0; line-height: 1.5; }
.extractor-specification-list {
    margin: 0;
    border-top: 1px solid #d9e2ee;
}

.extractor-specification-list > div {
    display: grid;
    grid-template-columns: minmax(180px, .36fr) minmax(0, 1fr);
    gap: 34px;
    padding: 10px 0;
    border-bottom: 1px solid #d9e2ee;
}

.extractor-specification-list dt,
.extractor-specification-list dd { margin: 0; }

.extractor-specification-list dt {
    color: #12233c;
    font-size: 1rem;
    font-weight: 700;
}

.extractor-specification-list dd {
    color: #526783;
    font-size: 1rem;
    line-height: 1.55;
}

.extractor-models > h2 { margin: 0 0 28px; color: #12233c; font-size: 1.65rem; }
.extractor-model-groups { display: grid; gap: 30px; }

.extractor-model-row { display: grid; gap: 24px; align-items: start; }
.extractor-model-row--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.extractor-model-row--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.extractor-model-row--1 { grid-template-columns: minmax(0, calc((100% - 48px) / 3)); }
body[data-extractor-category="pp-extraction-arm"] .extractor-model-row--1 { grid-template-columns: minmax(0, calc((100% - 24px) / 2)); }
body[data-extractor-category="atomic-absorption-exhaust-hood"] .extractor-model-row--1 { grid-template-columns: minmax(0, calc((100% - 24px) / 2)); }
.extractor-model-group { min-width: 0; }
.extractor-model-group h3 { margin: 0 0 10px; color: #12233c; font-size: 1rem; line-height: 1.3; }
.extractor-model-images { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }

.extractor-image-card {
    min-width: 0;
    margin: 0;
    padding: 4px;
    background: #fff;
    border: 1px solid #e1e7ef;
    border-radius: 8px;
    box-shadow: 0 3px 10px rgba(18, 35, 60, .04);
    transition: transform .22s ease, box-shadow .22s ease;
}

.extractor-image-card:hover { transform: translateY(-4px); box-shadow: 0 14px 28px rgba(0, 50, 255, .12); }
.extractor-image-card img { width: 100%; height: auto; aspect-ratio: 1 / 1; display: block; object-fit: contain; background: #fff; border-radius: 5px; }
.extractor-contact-wrap { margin-top: 40px; text-align: center; }

@media (max-width: 1024px) {
    .extractor-category-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .extractor-model-row--3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .extractor-model-row--1 { grid-template-columns: minmax(0, calc((100% - 24px) / 2)); }
}

@media (max-width: 768px) {
    .extractor-category-grid { gap: 14px; }
    .extractor-category-card > a { padding: 18px 12px; }
    .extractor-category-image { height: 170px; }
    .extractor-category-card h2, .extractor-category-card h3 { min-height: 3.6em; margin-bottom: 12px; font-size: 1rem; }
    .extractor-arm-detail-page .product-detail { padding: 64px 0 54px; }
    .extractor-page-heading { margin: 16px 0 24px; }
    .extractor-specification-list > div { grid-template-columns: 1fr; gap: 6px; padding: 12px 0; }
    .extractor-model-row--3,
    .extractor-model-row--2,
    body.extractor-arm-detail-page .extractor-model-row--1 { grid-template-columns: 1fr; }
    .extractor-model-groups { gap: 24px; }
}

@media (max-width: 520px) {
    .extractor-category-grid { grid-template-columns: 1fr; }
}