/* ========================================
   QUNHUI Products Page Stylesheet
   产品列表页专用样式
   ======================================== */

/* Page Hero Banner */
.pd-hero {
    position: relative;
    height: 600px;
    background: linear-gradient(135deg, var(--zs-bg-dark) 0%, var(--zs-bg-dark-secondary) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    overflow: hidden;
}

.pd-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('../img/1 排屑机.webp') center/cover no-repeat;
    opacity: 0.5;
}

.pd-hero::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(15, 22, 41, 0.08) 0%, rgba(26, 39, 68, 0.05) 100%);
    z-index: 1;
}

.pd-hero-content {
    position: relative;
    z-index: 2;
    max-width: 900px;
    padding: 0 20px;
}

.pd-hero h1 {
    color: var(--zs-white);
    font-size: clamp(2rem, 5vw, 3rem);
    margin-bottom: 20px;
    line-height: 1.3;
}

.pd-hero h1 strong {
    color: var(--zs-primary-light);
}

.pd-hero p {
    color: rgba(255, 255, 255, 0.85);
    font-size: 1.125rem;
    margin-bottom: 30px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.pd-hero-btns {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

/* Product Categories Section */
.pd-categories {
    padding: 100px 0;
    background: var(--zs-white);
}

.pd-section-title {
    text-align: center;
    margin-bottom: 60px;
}

.pd-section-title h2 {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    margin-bottom: 16px;
    position: relative;
    display: inline-block;
}

.pd-section-title h2::after {
    content: '';
    position: absolute;
    bottom: -12px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: var(--zs-primary-gradient);
    border-radius: 2px;
}

.pd-section-title p {
    color: var(--zs-text-gray);
    font-size: 1.0625rem;
    max-width: 700px;
    margin: 20px auto 0;
}

.pd-categories-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.pd-category-card {
    background: var(--zs-white);
    border-radius: var(--zs-radius-lg);
    overflow: hidden;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
    transition: all 0.4s var(--zs-transition);
    border: 1px solid var(--zs-border);
    display: block;
    text-decoration: none;
    color: inherit;
}

.pd-category-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 25px 50px rgba(0, 102, 204, 0.15);
    border-color: var(--zs-primary);
}

.pd-category-img {
    position: relative;
    width: 100%;
    padding-bottom: 100%;
    overflow: hidden;
}

.pd-category-img img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s var(--zs-transition);
}

.pd-category-card:hover .pd-category-img img {
    transform: scale(1.08);
}

/* Subcategory Overlay */
.pd-category-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(15, 22, 41, 0.92);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
}

.pd-category-card:hover .pd-category-overlay {
    opacity: 1;
    pointer-events: auto;
}

.pd-subcategory-list {
    list-style: none;
    padding: 15px 20px;
    width: 100%;
}

.pd-subcategory-list li {
    margin-bottom: 2px;
}

.pd-subcategory-list li:last-child {
    margin-bottom: 0;
}

.pd-subcategory-list a {
    display: block;
    padding: 6px 12px;
    color: rgba(255, 255, 255, 0.85);
    font-size: 0.875rem;
    transition: color 0.3s ease;
    text-decoration: none;
}

.pd-subcategory-list a:hover {
    color: var(--zs-primary-light);
}

.pd-category-info {
    padding: 28px 24px;
    background: var(--zs-white);
    transition: background 0.3s ease;
    position: relative;
    z-index: 1;
}

.pd-category-card:hover .pd-category-info {
    background: var(--zs-primary);
}

.pd-category-info h3 {
    font-size: 1.25rem;
    margin-bottom: 12px;
    color: var(--zs-text-dark);
    transition: color 0.3s;
}

.pd-category-card:hover .pd-category-info h3 {
    color: var(--zs-white);
}

.pd-category-info p {
    font-size: 0.9rem;
    color: var(--zs-text-gray);
    margin-bottom: 16px;
    line-height: 1.7;
    transition: color 0.3s;
}

.pd-category-card:hover .pd-category-info p {
    color: rgba(255, 255, 255, 0.85);
}

.pd-category-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--zs-primary);
    font-weight: 600;
    font-size: 0.9375rem;
    transition: color 0.3s;
    text-decoration: none;
}

.pd-category-card:hover .pd-category-link {
    color: var(--zs-white);
}

.pd-category-link svg {
    width: 18px;
    height: 18px;
    fill: currentColor;
    transition: transform 0.3s;
}

.pd-category-card:hover .pd-category-link svg {
    transform: translateX(5px);
}

/* Manufacturing Capability Section - Interactive Background */
.pd-capability {
    position: relative;
    height: 600px;
    overflow: hidden;
}

.pd-capability-wrapper {
    position: relative;
    width: 100%;
    height: 100%;
    display: flex;
}

/* Background Images */
.pd-capability-bgs {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.pd-capability-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    opacity: 0;
    transition: opacity 0.8s ease;
}

.pd-capability-bg::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(15, 22, 41, 0.6) 0%, rgba(15, 22, 41, 0.4) 100%);
}

.pd-capability-bg.active {
    opacity: 1;
}

/* Left: Vertical Panels with Shadow Overlay */
.pd-capability-panels {
    position: absolute;
    top: 0;
    left: 10%;
    width: 440px;
    height: 100%;
    display: flex;
    flex-direction: column;
    z-index: 4;
    background: rgba(0, 0, 0, 0.75);
}

.pd-capability-panel {
    flex: 1;
    display: flex;
    align-items: center;
    padding: 0 40px;
    cursor: pointer;
    transition: all 0.4s ease;
    position: relative;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.pd-capability-panel:last-child {
    border-bottom: none;
}

.pd-capability-panel::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--zs-primary);
    opacity: 0;
    transition: opacity 0.4s ease;
}

.pd-capability-panel:hover::before,
.pd-capability-panel.active::before {
    opacity: 1;
}

.pd-capability-panel.active {
    background: rgba(0, 102, 204, 0.2);
}

.pd-capability-panel:hover {
    background: rgba(255, 255, 255, 0.05);
}

.pd-panel-num {
    position: relative;
    z-index: 1;
    font-size: 1.75rem;
    font-weight: 800;
    color: rgba(255, 255, 255, 0.3);
    margin-right: 20px;
    min-width: 50px;
    transition: color 0.3s ease;
}

.pd-capability-panel:hover .pd-panel-num,
.pd-capability-panel.active .pd-panel-num {
    color: var(--zs-primary-light);
}

.pd-panel-title {
    position: relative;
    z-index: 1;
    font-size: 1rem;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.7);
    transition: color 0.3s ease;
    writing-mode: horizontal-tb;
    text-orientation: mixed;
    letter-spacing: 0.5px;
}

.pd-capability-panel:hover .pd-panel-title,
.pd-capability-panel.active .pd-panel-title {
    color: var(--zs-white);
}

/* Right: Content Display */
.pd-capability-content {
    position: absolute;
    top: 50%;
    left: calc(10% + 440px);
    right: 10%;
    transform: translateY(-50%);
    z-index: 3;
    text-align: left;
    padding-left: 120px;
}

.pd-capability-info {
    display: none;
}

.pd-capability-info.active {
    display: block;
    animation: fadeInUp 0.5s ease;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Title row: icon + title inline */
.pd-capability-info-header {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 20px;
}

.pd-capability-content .pd-capability-icon {
    width: 60px;
    height: 60px;
    background: var(--zs-primary-gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.pd-capability-content .pd-capability-icon svg {
    width: 30px;
    height: 30px;
    fill: var(--zs-white);
}

.pd-capability-content h3 {
    font-size: 1.75rem;
    color: var(--zs-white);
    margin: 0;
    font-weight: 700;
    line-height: 1.3;
    flex: 1;
}

.pd-capability-content p {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.85);
    line-height: 1.8;
    margin: 0;
    padding-left: 5px;
}

/* Technical Performance Section */
.pd-technical {
    padding: 100px 0;
    background: var(--zs-white);
}

.pd-technical-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.pd-technical-card {
    background: var(--zs-bg-light);
    border-radius: var(--zs-radius-lg);
    padding: 35px;
    border: 1px solid var(--zs-border);
    transition: all 0.4s var(--zs-transition);
}

.pd-technical-card:hover {
    background: var(--zs-white);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.08);
    border-color: rgba(0, 102, 204, 0.2);
}

.pd-technical-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 20px;
}

.pd-technical-icon {
    width: 50px;
    height: 50px;
    background: var(--zs-primary-gradient);
    border-radius: var(--zs-radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.pd-technical-icon svg {
    width: 24px;
    height: 24px;
    fill: var(--zs-white);
}

.pd-technical-header h3 {
    font-size: 1.25rem;
    color: var(--zs-text-dark);
}

.pd-technical-list {
    list-style: none;
}

.pd-technical-list li {
    position: relative;
    padding-left: 24px;
    margin-bottom: 12px;
    font-size: 0.9375rem;
    color: var(--zs-text-gray);
    line-height: 1.6;
}

.pd-technical-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 8px;
    width: 8px;
    height: 8px;
    background: var(--zs-primary);
    border-radius: 50%;
}

/* Applications Section */
.pd-applications {
    padding: 100px 0;
    background: linear-gradient(135deg, var(--zs-bg-dark) 0%, var(--zs-bg-dark-secondary) 100%);
}

.pd-applications .pd-section-title h2,
.pd-applications .pd-section-title p {
    color: var(--zs-white);
}

.pd-applications .pd-section-title p {
    color: rgba(255, 255, 255, 0.7);
}

.pd-applications-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.pd-application-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--zs-radius-md);
    padding: 30px 20px;
    text-align: center;
    transition: all 0.4s var(--zs-transition);
    display: block;
    text-decoration: none;
}

.pd-application-card:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--zs-primary);
    transform: translateY(-5px);
}

.pd-application-icon {
    width: 70px;
    height: 70px;
    background: var(--zs-primary-gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 18px;
}

.pd-application-icon svg {
    width: 32px;
    height: 32px;
    fill: var(--zs-white);
}

.pd-application-card h4 {
    color: var(--zs-white);
    font-size: 0.95rem;
    margin-bottom: 12px;
    line-height: 1.4;
}

.pd-application-link {
    color: var(--zs-primary-light);
    font-size: 0.875rem;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.pd-application-link svg {
    width: 16px;
    height: 16px;
    fill: currentColor;
    transition: transform 0.3s;
}

.pd-application-card:hover .pd-application-link svg {
    transform: translateX(4px);
}


/* Cases Section */
.pd-cases {
    padding: 100px 0;
    background: var(--zs-white);
}

.pd-cases-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.pd-case-card {
    background: var(--zs-bg-light);
    border-radius: var(--zs-radius-lg);
    overflow: hidden;
    display: flex;
    transition: all 0.4s var(--zs-transition);
    border: 1px solid var(--zs-border);
}

.pd-case-card:hover {
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.1);
    border-color: rgba(0, 102, 204, 0.2);
}

.pd-case-img {
    width: 200px;
    flex-shrink: 0;
    overflow: hidden;
}

.pd-case-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s;
}

.pd-case-card:hover .pd-case-img img {
    transform: scale(1.05);
}

.pd-case-content {
    padding: 30px;
    flex: 1;
}

.pd-case-tag {
    display: inline-block;
    background: var(--zs-primary);
    color: var(--zs-white);
    font-size: 0.75rem;
    padding: 4px 12px;
    border-radius: 20px;
    margin-bottom: 12px;
}

.pd-case-content h4 {
    font-size: 1.125rem;
    margin-bottom: 10px;
    color: var(--zs-text-dark);
}

.pd-case-content p {
    font-size: 0.9rem;
    color: var(--zs-text-gray);
    margin-bottom: 12px;
    line-height: 1.6;
}

.pd-case-result {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--zs-accent);
    font-weight: 600;
    font-size: 0.9rem;
}

.pd-case-result svg {
    width: 18px;
    height: 18px;
    fill: currentColor;
}

/* Testimonials Section */
.pd-testimonials {
    padding: 100px 0;
    background: var(--zs-bg-light);
}

.pd-testimonials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.pd-testimonial-card {
    background: var(--zs-white);
    border-radius: var(--zs-radius-lg);
    padding: 35px;
    border: 1px solid var(--zs-border);
    transition: all 0.4s var(--zs-transition);
    position: relative;
}

.pd-testimonial-card::before {
    content: '"';
    position: absolute;
    top: 20px;
    right: 25px;
    font-size: 4rem;
    color: var(--zs-primary);
    opacity: 0.1;
    font-family: Georgia, serif;
    line-height: 1;
}

.pd-testimonial-card:hover {
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.08);
    border-color: rgba(0, 102, 204, 0.2);
}

.pd-testimonial-text {
    font-size: 1rem;
    color: var(--zs-text-gray);
    line-height: 1.8;
    margin-bottom: 24px;
    font-style: italic;
}

.pd-testimonial-author {
    display: flex;
    align-items: center;
    gap: 14px;
}

.pd-testimonial-avatar {
    width: 50px;
    height: 50px;
    background: var(--zs-primary-gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--zs-white);
    font-weight: 700;
    font-size: 1.25rem;
}

.pd-testimonial-info h5 {
    font-size: 0.9375rem;
    color: var(--zs-text-dark);
    margin-bottom: 4px;
}

.pd-testimonial-info span {
    font-size: 0.8125rem;
    color: var(--zs-text-light);
}

/* FAQ & Inquiry Section */
.pd-faq {
    padding: 100px 0;
    background: var(--zs-white);
}

.pd-faq-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: start;
}

.pd-faq-left {
    max-width: 100%;
}

.pd-faq-header {
    margin-bottom: 30px;
}

.pd-faq-header h2 {
    font-size: 1.75rem;
    margin-bottom: 8px;
    color: var(--zs-text-dark);
}

.pd-faq-header p {
    color: var(--zs-text-gray);
    font-size: 0.9375rem;
}

.pd-faq-list {
    max-width: 100%;
}

.pd-faq-item {
    background: var(--zs-bg-light);
    border-radius: var(--zs-radius-md);
    margin-bottom: 16px;
    overflow: hidden;
    border: 1px solid transparent;
    transition: all 0.3s var(--zs-transition);
}

.pd-faq-item:hover {
    border-color: rgba(0, 102, 204, 0.15);
}

.pd-faq-item.active {
    background: var(--zs-white);
    box-shadow: 0 10px 35px rgba(0, 102, 204, 0.1);
    border-color: rgba(0, 102, 204, 0.2);
}

.pd-faq-question {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 22px 28px;
    cursor: pointer;
    font-weight: 600;
    color: var(--zs-text-dark);
    font-size: 1rem;
}

.pd-faq-icon {
    width: 24px;
    height: 24px;
    position: relative;
    flex-shrink: 0;
}

.pd-faq-icon::before,
.pd-faq-icon::after {
    content: '';
    position: absolute;
    background: var(--zs-primary);
    transition: all 0.3s var(--zs-transition);
}

.pd-faq-icon::before {
    width: 14px;
    height: 2px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.pd-faq-icon::after {
    width: 2px;
    height: 14px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.pd-faq-item.active .pd-faq-icon::after {
    transform: translate(-50%, -50%) rotate(90deg);
    opacity: 0;
}

.pd-faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s var(--zs-transition);
}

.pd-faq-item.active .pd-faq-answer {
    max-height: 300px;
}

.pd-faq-answer p {
    padding: 0 28px 22px;
    color: var(--zs-text-gray);
    line-height: 1.8;
    font-size: 0.875rem;
}

/* Inquiry Form */
.pd-faq-right {
    position: sticky;
    top: 100px;
}

.pd-inquiry-form {
    background: var(--zs-bg-light);
    border-radius: var(--zs-radius-lg);
    padding: 35px;
    border: 1px solid var(--zs-border);
}

.pd-inquiry-form h3 {
    font-size: 1.5rem;
    color: var(--zs-text-dark);
    margin-bottom: 8px;
}

.pd-inquiry-form > p {
    color: var(--zs-text-gray);
    font-size: 0.9rem;
    margin-bottom: 25px;
}

.pd-form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
}

.pd-form-group {
    margin-bottom: 15px;
}

.pd-form-group input,
.pd-form-group select,
.pd-form-group textarea {
    width: 100%;
    padding: 14px 16px;
    border: 1px solid var(--zs-border);
    border-radius: var(--zs-radius-sm);
    font-size: 0.9375rem;
    font-family: inherit;
    background: var(--zs-white);
    transition: all 0.3s ease;
}

.pd-form-group input:focus,
.pd-form-group select:focus,
.pd-form-group textarea:focus {
    outline: none;
    border-color: var(--zs-primary);
    box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.1);
}

.pd-form-group input::placeholder,
.pd-form-group textarea::placeholder {
    color: var(--zs-text-light);
}

.pd-form-group select {
    cursor: pointer;
    color: var(--zs-text-gray);
}

.pd-form-group textarea {
    resize: vertical;
    min-height: 150px;
}

.pd-form-actions {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    align-items: center;
}

.pd-form-actions .zs-btn-primary {
    flex: 1;
    min-width: 140px;
}

.pd-btn-whatsapp {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: #25D366 !important;
    color: var(--zs-white) !important;
    padding: 12px 16px !important;
    font-size: 0.875rem !important;
}

.pd-btn-whatsapp:hover {
    background: #20bd5a !important;
}

.pd-btn-whatsapp svg {
    width: 18px;
    height: 18px;
    fill: currentColor;
}

.pd-btn-email {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: var(--zs-text-gray) !important;
    color: var(--zs-white) !important;
    padding: 12px 16px !important;
    font-size: 0.875rem !important;
}

.pd-btn-email:hover {
    background: var(--zs-text-dark) !important;
}

.pd-btn-email svg {
    width: 18px;
    height: 18px;
    fill: currentColor;
}

/* CTA Section */
.pd-cta {
    padding: 80px 0;
    background: var(--zs-primary-gradient);
    text-align: center;
}

.pd-cta h2 {
    color: var(--zs-white);
    font-size: clamp(1.5rem, 4vw, 2.25rem);
    margin-bottom: 16px;
}

.pd-cta p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.0625rem;
    margin-bottom: 30px;
}

.pd-cta-btns {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

.pd-btn-white {
    background: var(--zs-white) !important;
    color: var(--zs-primary) !important;
}

.pd-btn-white:hover {
    background: var(--zs-bg-light) !important;
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
}

.pd-btn-outline-white {
    background: transparent !important;
    color: var(--zs-white) !important;
    border: 2px solid var(--zs-white) !important;
}

.pd-btn-outline-white:hover {
    background: var(--zs-white) !important;
    color: var(--zs-primary) !important;
}

/* Responsive Styles */
@media (max-width: 1200px) {
    .pd-categories-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .pd-capability-panel {
        width: 100px;
    }
    
    .pd-applications-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 992px) {
    .pd-hero {
        height: 350px;
    }

    .pd-technical-grid {
        grid-template-columns: 1fr;
    }

    .pd-cases-grid {
        grid-template-columns: 1fr;
    }

    .pd-testimonials-grid {
        grid-template-columns: 1fr;
    }

    .pd-capability {
        height: auto;
        min-height: 500px;
    }

    .pd-capability-content {
        position: relative;
        top: auto;
        left: auto;
        right: auto;
        transform: none;
        padding: 60px 20px;
        text-align: center;
    }

    .pd-capability-info-header {
        flex-direction: column;
        gap: 15px;
    }

    .pd-capability-content .pd-capability-icon {
        margin: 0 auto;
    }

    .pd-capability-content h3 {
        text-align: center;
    }

    .pd-capability-content p {
        text-align: center;
        padding-left: 0;
    }

    .pd-capability-panels {
        position: relative;
        width: 100%;
        height: auto;
        flex-direction: row;
        flex-wrap: wrap;
        justify-content: center;
        padding: 20px;
        background: rgba(0, 0, 0, 0.7);
    }

    .pd-capability-panel {
        flex: 0 0 auto;
        width: auto;
        height: auto;
        padding: 15px 20px;
        border-bottom: none;
        border: 1px solid rgba(255, 255, 255, 0.2);
        border-radius: 8px;
        margin: 5px;
    }

    .pd-capability-panel::before {
        display: none;
    }

    .pd-panel-num {
        margin-right: 10px;
        min-width: auto;
    }

    .pd-applications-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .pd-faq-wrapper {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .pd-faq-right {
        position: relative;
        top: 0;
    }
}

@media (max-width: 768px) {
    .pd-hero {
        height: 300px;
    }
    
    .pd-categories-grid {
        grid-template-columns: 1fr;
    }
    
    .pd-capability-content h3 {
        font-size: 1.5rem;
    }
    
    .pd-capability-panel {
        padding: 10px 15px;
    }
    
    .pd-panel-num {
        font-size: 1.5rem;
        margin-bottom: 8px;
    }
    
    .pd-applications-grid {
        grid-template-columns: 1fr;
    }
    
    .pd-case-card {
        flex-direction: column;
    }
    
    .pd-case-img {
        width: 100%;
        height: 180px;
    }
    
    .pd-form-row {
        grid-template-columns: 1fr;
    }
    
    .pd-form-actions {
        flex-direction: column;
    }
    
    .pd-form-actions .zs-btn {
        width: 100%;
        justify-content: center;
    }
    
    .pd-inquiry-form {
        padding: 25px;
    }
}