/* ============================================================
   product-detail.css — Single product detail
   ============================================================ */
#c-hero-video{
        position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.c-page-banner__media{
    height: 100% !important;
}
/* ---------- Hero + gallery ---------- */
.c-product-hero__inner {
    position: relative;
    z-index: 1;
    display: flex;
    gap: clamp(2rem, 4vw, 4rem);
    align-items: center;
}

.c-product-hero__info {
    flex: 1 1 0;
    min-width: 0;
}

.c-product-hero__title {
    font-size: clamp(2rem, 3.5vw, 3rem);
    margin: 1rem 0 1rem;
    color: var(--color-white);
}

.c-product-hero__spec {
    color: rgba(255, 255, 255, 0.85);
    font-size: var(--text-md);
    line-height: var(--leading-relaxed);
    margin-bottom: 1.5rem;
}

.c-product-hero__certs {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-bottom: 1.75rem;
}

.c-product-hero__certs li {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    font-size: var(--text-sm);
    font-weight: var(--font-weight-semibold);
    color: var(--color-primary);
    background: var(--color-primary-50);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-full);
}

.c-product-hero__cert {
    display: inline-flex;
    align-items: center;
    color: var(--color-primary);
}

.c-product-hero__cert svg {
    width: 1em;
    height: 1em;
}

.c-product-hero__actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.c-product-hero__gallery {
    flex: 0 0 500px;
    max-width: 100%;
}

/* Gallery */
.c-gallery__main {
    aspect-ratio: 1 / 1;
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: var(--color-cloud);
    border: 1px solid var(--color-line);
    margin-bottom: 0.75rem;
}

.c-gallery__main img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.c-gallery__thumbs {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.75rem;
}

.c-gallery__thumb {
    display: block;
    aspect-ratio: 1 / 1;
    border-radius: var(--radius);
    overflow: hidden;
    border: 2px solid var(--color-line);
    background: var(--color-cloud);
    padding: 0;
    cursor: pointer;
    transition: border-color var(--transition-fast), transform var(--transition-fast);
}

.c-gallery__thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.c-gallery__thumb:hover {
    transform: translateY(-2px);
}

.c-gallery__thumb.is-active {
    border-color: var(--color-primary);
}

/* ---------- Detail body ---------- */
.c-detail-layout {
    display: grid;
    /* grid-template-columns: 1fr 17.5rem; */
    gap: clamp(1.5rem, 3vw, 3rem);
    align-items: start;
}

.c-detail {
    min-width: 0;
}

.c-detail__tabs {
    position: sticky;
    top: calc(var(--header-height) + var(--topbar-height));
    z-index: 10;
    display: flex;
    gap: 0.25rem;
    padding: 0.5rem;
    background: var(--color-white);
    border: 1px solid var(--color-line);
    border-radius: var(--radius);
    margin-bottom: 2rem;
    overflow-x: auto;
    scrollbar-width: none;
}

.c-detail__tabs::-webkit-scrollbar {
    display: none;
}

.c-detail__tab {
    flex: 0 0 auto;
    padding: 0.6rem 1.1rem;
    font-size: var(--text-base);
    font-weight: var(--font-weight-medium);
    color: var(--color-text-secondary);
    border-radius: var(--radius-sm);
    white-space: nowrap;
    transition: background-color var(--transition-fast), color var(--transition-fast);
}

.c-detail__tab:hover {
    color: var(--color-primary);
}

.c-detail__tab.is-active {
    background: var(--color-primary);
    color: var(--color-white);
}

.c-detail__section {
    padding-bottom: var(--space-12);
}

.c-detail__section:last-child {
    padding-bottom: 0;
}

.c-detail__head {
    margin-bottom: 1.75rem;
}

.c-detail__eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: var(--text-xs);
    font-weight: var(--font-weight-semibold);
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--color-primary);
    margin-bottom: 0.5rem;
}

.c-detail__eyebrow::before {
    content: "";
    width: 1.75rem;
    height: 2px;
    background: var(--color-accent);
}

.c-detail__section h2 {
    font-size: var(--text-xl);
    margin-bottom: 1.25rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--color-line);
}

.c-detail__section p {
    color: var(--color-text-secondary);
    line-height: var(--leading-relaxed);
}

.c-detail__lead {
    font-size: var(--text-lg);
    color: var(--color-text) !important;
    line-height: 1.7 !important;
    margin-bottom: 1.25rem;
}

/* Overview highlight cards */
.c-detail__highlights {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    margin-top: 2rem;
}

.c-detail__highlight {
    padding: 1.5rem;
    background: var(--color-white);
    border: 1px solid var(--color-line);
    border-radius: var(--radius-lg);
    box-shadow: 0 10px 30px rgba(0, 75, 135, 0.06);
}

.c-detail__highlight-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.75rem;
    height: 2.75rem;
    margin-bottom: 1rem;
    border-radius: 12px;
    background: var(--color-primary-50);
    color: var(--color-primary);
}

.c-detail__highlight h3 {
    font-size: var(--text-base);
    margin-bottom: 0.5rem;
}

.c-detail__highlight p {
    font-size: var(--text-sm);
    margin-bottom: 0;
}

/* Specifications definition list */
.c-specs {
    display: flex;
    flex-direction: column;
    border: 1px solid var(--color-line);
    border-radius: var(--radius);
    overflow: hidden;
    background: var(--color-white);
    box-shadow: 0 10px 30px rgba(0, 75, 135, 0.05);
}

.c-specs__row {
    display: grid;
    grid-template-columns: 12rem 1fr;
    gap: 1rem;
    padding: 0.9rem 1.25rem;
    transition: background-color var(--transition-fast);
}

.c-specs__row:nth-child(odd) {
    background: var(--color-off-white);
}

.c-specs__row:hover {
    background: var(--color-primary-50);
}

.c-specs__row dt {
    font-size: var(--text-sm);
    font-weight: var(--font-weight-semibold);
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--color-text);
}

.c-specs__row dd {
    color: var(--color-text-secondary);
}

/* Feature / application list */
.c-detail__features {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.c-detail__features li {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    color: var(--color-text-secondary);
    line-height: var(--leading-relaxed);
}

.c-detail__features svg {
    flex: 0 0 auto;
    width: 1.2rem;
    height: 1.2rem;
    margin-top: 0.25rem;
    color: var(--color-primary);
}

.c-detail__features--grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.75rem;
}

.c-detail__features--grid li {
    align-items: center;
    padding: 0.9rem 1rem;
    background: var(--color-white);
    border: 1px solid var(--color-line);
    border-radius: var(--radius);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.c-detail__features--grid li:hover {
    border-color: var(--color-primary-100);
    box-shadow: var(--shadow);
}

.c-detail__feature-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex: 0 0 auto;
    width: 1.5rem;
    height: 1.5rem;
    border-radius: 50%;
    background: var(--color-primary-50);
    color: var(--color-primary);
}

.c-detail__feature-icon svg {
    width: 0.9rem;
    height: 0.9rem;
    margin-top: 0;
    color: inherit;
}

/* Application cards */
.c-detail__apps {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
}

.c-detail__app {
    padding: 1.5rem;
    background: linear-gradient(135deg, var(--color-white) 0%, var(--color-off-white) 100%);
    border: 1px solid var(--color-line);
    border-radius: var(--radius-lg);
}

.c-detail__app-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.75rem;
    height: 2.75rem;
    margin-bottom: 1rem;
    border-radius: 12px;
    background: var(--color-accent-50);
    color: var(--color-accent-dark);
}

.c-detail__app h3 {
    font-size: var(--text-base);
    margin-bottom: 0.5rem;
}

.c-detail__app p {
    font-size: var(--text-sm);
    margin-bottom: 0;
}

/* Product video CTA */
.c-detail__video-cta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
    margin-top: 2rem;
    padding: 1.5rem 1.75rem;
    background: linear-gradient(120deg, var(--color-primary-50) 0%, var(--color-accent-50) 100%);
    border: 1px solid var(--color-primary-100);
    border-radius: var(--radius-lg);
}

.c-detail__video-cta h3 {
    font-size: var(--text-md);
    margin-bottom: 0.35rem;
}

.c-detail__video-cta p {
    margin-bottom: 0;
    font-size: var(--text-sm);
}

.c-detail__video-cta .btn {
    flex: 0 0 auto;
}

/* Why choose cards */
.c-detail__reasons {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.c-detail__reason {
    position: relative;
    padding: 1.5rem 1.5rem 1.5rem 5rem;
    background: var(--color-white);
    border: 1px solid var(--color-line);
    border-radius: var(--radius-lg);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.c-detail__reason:hover {
    border-color: var(--color-primary-100);
    box-shadow: var(--shadow);
}

.c-detail__reason-num {
    position: absolute;
    left: 1.5rem;
    top: 1.5rem;
    font-size: var(--text-xl);
    font-weight: var(--font-weight-semibold);
    line-height: 1;
    color: var(--color-primary);
    opacity: 0.35;
}

.c-detail__reason h3 {
    font-size: var(--text-base);
    margin-bottom: 0.5rem;
}

.c-detail__reason p {
    margin-bottom: 0;
    font-size: var(--text-sm);
}

/* Product FAQ */
.c-detail__faq .c-accordion__trigger {
    font-size: var(--text-base);
}

/* ---------- Related products ---------- */
.c-related-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}

.c-related-grid .c-card {
    display: flex;
    flex-direction: column;
}

.c-related-grid .c-card__body {
    display: flex;
    flex-direction: column;
    flex: 1;
}

.c-related-grid .c-card__text {
    flex: 1;
}

.c-related-grid .c-card__body .btn {
    font-size: 0.9rem;
    align-self: flex-start;
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1023px) {
    .c-product-hero__inner {
        flex-direction: column;
        align-items: stretch;
    }

    .c-product-hero__gallery {
        flex: 0 0 auto;
    }

    .c-detail-layout {
        grid-template-columns: 1fr;
    }

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

    .c-detail__highlights {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 767px) {
    .c-detail__tabs {
        top: var(--header-height);
    }

    .c-specs__row {
        grid-template-columns: 1fr;
        gap: 0.25rem;
    }

    .c-related-grid {
        grid-template-columns: 1fr;
    }

    .c-detail__features--grid,
    .c-detail__apps {
        grid-template-columns: 1fr;
    }

    .c-detail__video-cta {
        flex-direction: column;
        align-items: flex-start;
    }

    .c-detail__reason {
        padding: 1.25rem;
    }

    .c-detail__reason-num {
        position: static;
        display: block;
        margin-bottom: 0.5rem;
    }
}

/* ============================================================
   GUTENBERG 正文（post_content）
   仅作用于 .c-detail__section--body
   ============================================================ */
.c-detail__section--body {
    padding-bottom: 0;
    color: var(--color-text-secondary);
    line-height: var(--leading-relaxed);
}

.c-detail__section--body > :first-child {
    margin-top: 0;
}

.c-detail__section--body > :last-child {
    margin-bottom: 0;
}

.c-detail__section--body h2,
.c-detail__section--body h2.wp-block-heading {
    position: relative;
    margin: 2.5rem 0 1rem;
    padding: 0 0 0.75rem 1rem;
    border-bottom: 1px solid var(--color-line);
    font-size: var(--text-xl);
    color: var(--color-text);
}

.c-detail__section--body h2::before,
.c-detail__section--body h2.wp-block-heading::before {
    content: "";
    position: absolute;
    top: 0.15em;
    bottom: 0.95rem;
    left: 0;
    width: 3px;
    border-radius: var(--radius-full);
    background: var(--color-primary);
}

.c-detail__section--body > h2:first-child,
.c-detail__section--body > h2.wp-block-heading:first-child {
    margin-top: 0;
}

.c-detail__section--body h3,
.c-detail__section--body h3.wp-block-heading {
    margin: 1.75rem 0 0.6rem;
    font-size: var(--text-lg);
    color: var(--color-text);
}

.c-detail__section--body p,
.c-detail__section--body .wp-block-paragraph {
    margin: 0 0 1rem;
    color: var(--color-text-secondary);
    line-height: var(--leading-relaxed);
}

.c-detail__section--body p:empty {
    display: none;
}

.c-detail__section--body strong {
    color: var(--color-text);
    font-weight: var(--font-weight-semibold);
}

.c-detail__section--body a {
    color: var(--color-primary);
    text-decoration: underline;
    text-underline-offset: 2px;
}

.c-detail__section--body a:hover {
    color: var(--color-primary-dark);
}

.c-detail__section--body ul.wp-block-list,
.c-detail__section--body ol.wp-block-list {
    margin: 0 0 var(--space-8);
    padding-left: 1.35rem;
    color: var(--color-text-secondary);
    line-height: var(--leading-relaxed);
}

.c-detail__section--body ul.wp-block-list {
    list-style: disc;
}

.c-detail__section--body ol.wp-block-list {
    list-style: decimal;
}

.c-detail__section--body .wp-block-list li {
    margin-bottom: 0.6rem;
    padding-left: 0.25rem;
}

.c-detail__section--body .wp-block-list li::marker {
    color: var(--color-primary);
    font-weight: var(--font-weight-semibold);
}

.c-detail__section--body figure,
.c-detail__section--body .wp-block-table {
    margin: 0 0 var(--space-8);
}

.c-detail__section--body .wp-block-table {
    overflow-x: auto;
    border: 1px solid var(--color-line);
    border-radius: var(--radius);
    background: var(--color-white);
    box-shadow: 0 10px 30px rgba(0, 75, 135, 0.05);
}

.c-detail__section--body .wp-block-table table {
    width: 100%;
    margin: 0;
    border-collapse: collapse;
}

.c-detail__section--body .wp-block-table .has-fixed-layout {
    table-layout: fixed;
}

.c-detail__section--body .wp-block-table th,
.c-detail__section--body .wp-block-table td {
    padding: 0.9rem 1.25rem;
    border-bottom: 1px solid var(--color-line);
    vertical-align: top;
    color: var(--color-text-secondary);
    text-align: left;
}

.c-detail__section--body .wp-block-table th {
    background: var(--color-primary-50);
    color: var(--color-text);
}

.c-detail__section--body .wp-block-table tr:last-child td {
    border-bottom: 0;
}

.c-detail__section--body .wp-block-table tr:nth-child(odd) {
    background: var(--color-off-white);
}

.c-detail__section--body .wp-block-table tr:first-child td {
    background: var(--color-primary-50);
    color: var(--color-text);
}

.c-detail__section--body .wp-block-table td:first-child {
    width: 30%;
    font-size: var(--text-sm);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text);
}

/* WordPress Accordion block */
.c-detail__section--body .wp-block-accordion {
    margin: 1.5rem 0 var(--space-8);
    border: 1px solid var(--color-line);
    border-radius: var(--radius-lg);
    background: var(--color-white);
    overflow: hidden;
}

.c-detail__section--body .wp-block-accordion-item + .wp-block-accordion-item {
    border-top: 1px solid var(--color-line);
}

.c-detail__section--body .wp-block-accordion-heading {
    margin: 0;
    padding: 0;
    border: 0;
    font-size: inherit;
}

.c-detail__section--body .wp-block-accordion-heading__toggle {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    width: 100%;
    padding: 1.1rem 1.25rem;
    border: 0;
    background: transparent;
    color: var(--color-text);
    font: inherit;
    font-weight: var(--font-weight-semibold);
    text-align: left;
    cursor: pointer;
}

.c-detail__section--body .wp-block-accordion-heading__toggle:hover {
    color: var(--color-primary);
}

.c-detail__section--body .wp-block-accordion-heading__toggle-icon {
    flex: 0 0 auto;
    color: var(--color-primary);
    font-size: 1.35rem;
    line-height: 1;
    transition: transform var(--transition-fast);
}

.c-detail__section--body .wp-block-accordion-item.is-open .wp-block-accordion-heading__toggle-icon {
    transform: rotate(45deg);
}

.c-detail__section--body .wp-block-accordion-panel {
    padding: 0 1.25rem 1.25rem;
}

.c-detail__section--body .wp-block-accordion-panel[hidden] {
    display: none;
}

.c-detail__section--body .wp-block-accordion-panel p {
    margin-bottom: 0;
}

/* Richer long-form content details */
.c-detail__section--body blockquote {
    margin: 1.5rem 0 var(--space-8);
    padding: 1.25rem 1.5rem;
    border-left: 4px solid var(--color-primary);
    border-radius: 0 var(--radius) var(--radius) 0;
    background: var(--color-primary-50);
    color: var(--color-text);
    font-size: var(--text-lg);
    line-height: var(--leading-relaxed);
}

.c-detail__section--body blockquote p:last-child {
    margin-bottom: 0;
}

.c-detail__section--body hr,
.c-detail__section--body .wp-block-separator {
    margin: 2.5rem 0;
    border: 0;
    border-top: 1px solid var(--color-line);
}

.c-detail__section--body figure.wp-block-image {
    margin: 1.5rem 0 var(--space-8);
}

.c-detail__section--body figure.wp-block-image img {
    width: 100%;
    height: auto;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

.c-detail__section--body figcaption {
    margin-top: 0.6rem;
    color: var(--color-text-muted);
    font-size: var(--text-sm);
    text-align: center;
}

.c-detail__section--body .wp-block-table tbody tr {
    transition: background var(--transition-fast);
}

.c-detail__section--body .wp-block-table tbody tr:hover {
    background: var(--color-primary-50);
}

.c-detail__section--body .wp-block-table tbody tr:hover td {
    background: transparent;
}

.c-detail__section--body .wp-block-table tbody tr:first-child:hover td {
    background: var(--color-primary-50);
}

.c-detail__section--body .wp-block-accordion-item.is-open {
    background: var(--color-primary-50);
}

.c-detail__section--body .wp-block-accordion-heading__toggle-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 1.75rem;
    height: 1.75rem;
    border-radius: 50%;
    background: var(--color-primary-50);
    font-size: 1.1rem;
    transition: transform var(--transition-fast), background var(--transition-fast), color var(--transition-fast);
}

.c-detail__section--body .wp-block-accordion-item.is-open .wp-block-accordion-heading__toggle-icon {
    background: var(--color-primary);
    color: var(--color-white);
}

.c-detail__section--body .wp-block-accordion-heading__toggle:hover .wp-block-accordion-heading__toggle-icon {
    background: var(--color-primary);
    color: var(--color-white);
}

@media (max-width: 767px) {
    .c-detail__section--body .wp-block-table td:first-child {
        width: auto;
    }

    .c-detail__section--body h2,
    .c-detail__section--body h2.wp-block-heading {
        margin-top: 2rem;
    }
}