/* =============================================================
   HOME PAGE — home.css
   ============================================================= */

/* ---- Hero Slider ---- */
.hero {
    position: relative;
    width: 100%;
    height: 100vh;
    min-height: 600px;
    overflow: hidden;
}

.hero__slides {
    position: relative;
    width: 100%;
    height: 100%;
}

.hero__slide {
    position: absolute;
    inset: 0;
    opacity: 0;
    transition: opacity 1s ease;
    overflow: hidden;
}

.hero__slide.is-active {
    opacity: 1;
}

/* Separate background element — zoom animation runs on this,
   so the overlay and content layers are never affected by transform */
.hero__slide-bg {
    position: absolute;
    inset: -6%;
    /* extra bleed prevents edge flicker during scale */
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    transform: scale(1);
    transition: opacity 1s ease;
}

/* Ken Burns: scale up while the slide is active */
.hero__slide.is-active .hero__slide-bg {
    animation: hero-zoom 8s ease-out forwards;
}

@keyframes hero-zoom {
    from {
        transform: scale(1);
    }

    to {
        transform: scale(1.12);
    }
}

/* Gradient overlay — sits above bg, below content */
.hero__slide::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg,
            rgba(10, 20, 60, .72) 0%,
            rgba(10, 20, 60, .35) 55%,
            rgba(10, 20, 60, .15) 100%);
    z-index: 1;
}

.hero__content {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding-inline: var(--container-padding);
    max-width: var(--container-max);
    margin-inline: auto;
    padding-top: 72px;
    /* offset header */
    padding-bottom: 140px;
    /* space for stats bar */
    z-index: 2;
    /* above ::before overlay */
}

.hero__label {
    font-size: var(--font-size-xs);
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--color-accent-green);
    margin-bottom: var(--space-4);
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.hero__label::before {
    content: '';
    display: block;
    width: 2rem;
    height: 1px;
    background: var(--color-accent-green);
}

.hero__title {
    font-size: clamp(2rem, 5vw, 4rem);
    font-weight: var(--font-weight-bold);
    line-height: var(--line-height-tight);
    color: var(--color-white);
    max-width: 700px;
    margin-bottom: var(--space-6);
}

.hero__desc {
    font-size: var(--font-size-md);
    color: rgba(255, 255, 255, .8);
    max-width: 540px;
    line-height: var(--line-height-loose);
    margin-bottom: var(--space-10);
}

.hero__actions {
    display: flex;
    gap: var(--space-4);
    flex-wrap: wrap;
}

/* Pagination dots */
.hero__dots {
    position: absolute;
    bottom: 100px;
    /* above stats bar */
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: var(--space-2);
    z-index: 3;
}

.hero__dot {
    width: 8px;
    height: 8px;
    border-radius: var(--radius-full);
    background: rgba(255, 255, 255, .4);
    border: none;
    cursor: pointer;
    transition: all var(--transition-base);
    padding: 0;
}

.hero__dot.is-active {
    width: 28px;
    background: var(--color-white);
}

/* ---- Hero embedded stats bar ---- */
.hero__stats-bar {
    position: absolute;
    bottom: 0;
    inset-inline: 0;
    z-index: 3;
}

.hero__stats-inner {
    display: grid;
    /* --stat-cols is set dynamically by JS to match the actual item count per slide */
    grid-template-columns: repeat(var(--stat-cols, 4), 1fr);
}

.hero__stat-item {
    padding: var(--space-4) var(--space-3);
    text-align: center;
    border-right: 1px solid rgba(255, 255, 255, 0.08);
    transition: background var(--transition-fast);
}

.hero__stat-item:last-child {
    border-right: none;
}

.hero__stat-item:hover {
    background: rgba(255, 255, 255, 0.06);
}

.hero__stat-value {
    font-size: clamp(1.1rem, 2vw, 1.6rem);
    font-weight: var(--font-weight-bold);
    color: var(--color-white);
    line-height: 1;
    margin-bottom: var(--space-1);
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 2px;
}

.hero__stat-unit {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-normal);
    color: rgba(255, 255, 255, 0.7);
}

.hero__stat-label {
    font-size: var(--font-size-xs);
    color: rgba(255, 255, 255, 0.55);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* ---- Stats counter section ---- */
.stats {
    background: var(--color-white);
    padding-block: var(--space-12);
    border-bottom: 1px solid var(--color-gray-200);
}

.stats__grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-4);
}

.stat-item {
    padding: var(--space-6);
    border-left: 1px solid var(--color-gray-200);
}

.stat-item:first-child {
    border-left: none;
}

.stat-item__label {
    font-size: var(--font-size-xs);
    color: var(--color-gray-500);
    letter-spacing: 0.05em;
    margin-bottom: var(--space-3);
    text-transform: uppercase;
}

.stat-item__value {
    font-size: clamp(2rem, 4vw, 3.5rem);
    font-weight: var(--font-weight-bold);
    color: var(--color-primary);
    line-height: 1;
    display: flex;
    align-items: baseline;
    gap: var(--space-1);
}

.stat-item__value .suffix {
    font-size: var(--font-size-xl);
    color: var(--color-gray-700);
    font-weight: var(--font-weight-medium);
}

.stat-item__desc {
    font-size: var(--font-size-sm);
    color: var(--color-gray-600);
    margin-top: var(--space-2);
    line-height: var(--line-height-base);
}

/* ---- About section ---- */
.about-home {
    background: var(--color-white);
}

.about-home__inner {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: var(--space-16);
    align-items: center;
}

.about-home__title {
    font-size: clamp(var(--font-size-2xl), 4vw, var(--font-size-4xl));
    font-weight: var(--font-weight-bold);
    line-height: var(--line-height-tight);
    color: var(--color-primary);
}

.about-home__title span {
    color: var(--color-accent-green);
}

.about-home__text {
    color: var(--color-gray-600);
    line-height: var(--line-height-loose);
    margin-block: var(--space-6);
}

.about-home__highlights {
    display: flex;
    gap: var(--space-6);
    margin-top: var(--space-6);
    flex-wrap: wrap;
}

.about-home__highlight {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--font-size-sm);
    color: var(--color-gray-600);
}

.about-home__highlight svg {
    color: var(--color-accent-green);
    flex-shrink: 0;
}

/* ---- Solutions Tabs section ---- */
.solutions {
    padding-block: var(--space-16) 0;
    overflow: hidden;
}

.solutions__header {
    padding-inline: var(--container-padding);
    max-width: var(--container-max);
    margin-inline: auto;
    margin-bottom: var(--space-10);
    text-align: center;
}

.solutions__tabs {
    display: flex;
    justify-content: center;
    gap: var(--space-2);
    flex-wrap: wrap;
}

.solutions__tab {
    padding: var(--space-3) var(--space-8);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    color: #000;
    background: transparent;
    border: none;
    border-bottom: 2px solid transparent;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.solutions__tab.is-active,
.solutions__tab:hover {
    color: var(--color-primary);
    border-bottom-color: var(--color-primary);
}

.solutions__panels {
    position: relative;
    width: 100%;
    height: 600px;
}

.solutions__panel {
    position: absolute;
    inset: 0;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-slow);
}

.solutions__panel.is-active {
    opacity: 1;
    pointer-events: auto;
}

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

/* Dark gradient overlay for text legibility */
.solutions__panel-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to right,
            rgba(5, 12, 40, 0.65) 0%,
            rgba(5, 12, 40, 0.35) 60%,
            rgba(5, 12, 40, 0.15) 100%);
}

/* Content block — vertically and horizontally centered */
.solutions__panel-content {
    position: absolute;
    left: 10%;
    top: 50%;
    transform: translateY(-50%);
    display: flex;
    flex-direction: column;
    color: var(--color-white);
    padding-inline: var(--container-padding);
    z-index: 1;
}

.solutions__panel-tag {
    font-size: var(--font-size-xs);
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--color-accent-green);
    margin-bottom: var(--space-3);
}

.solutions__panel-title {
    font-size: clamp(var(--font-size-xl), 3vw, var(--font-size-3xl));
    font-weight: var(--font-weight-bold);
    line-height: var(--line-height-tight);
    max-width: 560px;
    margin-bottom: var(--space-8);
}

/* Outline button — transparent bg, white border, white text */
.solutions__panel-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-8);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    color: var(--color-white);
    background: transparent;
    border: 1.5px solid var(--color-white);
    border-radius: var(--radius-sm);
    text-decoration: none;
    letter-spacing: 0.03em;
    transition: background var(--transition-fast), color var(--transition-fast);
    width: fit-content;
}

.solutions__panel-btn:hover {
    background: var(--color-white);
    color: var(--color-primary);
}

/* ---- Supply Chain / Cards section ---- */
.supply-chain {
    background: var(--color-gray-100);
}

.supply-chain__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-8);
    margin-top: var(--space-12);
}

.sc-card {
    display: flex;
    flex-direction: column;
}

.sc-card__image {
    width: 100%;
    aspect-ratio: 4/3;
    object-fit: cover;
    border-radius: var(--radius-md);
    margin-bottom: var(--space-5);
}

.sc-card__icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    background: var(--color-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
    margin-bottom: var(--space-4);
}

.sc-card__title {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-bold);
    color: var(--color-gray-900);
    margin-bottom: var(--space-3);
}

.sc-card__text {
    font-size: var(--font-size-sm);
    color: var(--color-gray-600);
    line-height: var(--line-height-loose);
    flex: 1;
}

.sc-card__link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    margin-top: var(--space-4);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    color: var(--color-primary);
    text-decoration: none;
    transition: gap var(--transition-fast);
}

.sc-card__link:hover {
    gap: var(--space-3);
    color: var(--color-accent-green);
}

/* ---- Partner logo marquee ---- */
.partners {
    background: var(--color-gray-100);
    padding-block: var(--space-10);
    overflow: hidden;
}

.partners__track-wrap {
    overflow: hidden;
    mask-image: linear-gradient(to right, transparent 0%, black 10%, black 90%, transparent 100%);
    -webkit-mask-image: linear-gradient(to right, transparent 0%, black 10%, black 90%, transparent 100%);
}

.partners__track {
    display: flex;
    gap: var(--space-10);
    animation: marquee 60s linear infinite;
    width: max-content;
}

.partners__track:hover {
    animation-play-state: paused;
}

.partners__track:after {
    animation: marquee 60s linear infinite;
}

@keyframes marquee {
    from {
        transform: translateX(0);
    }

    to {
        transform: translateX(-50%);
    }
}

.partner-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 140px;
    height: 60px;
    background: var(--color-white);
    border-radius: var(--radius-md);
    padding: var(--space-3);
    flex-shrink: 0;
    box-shadow: var(--shadow-sm);
}

.partner-logo img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    filter: grayscale(1);
    opacity: .6;
    transition: all var(--transition-base);
}

.partner-logo:hover img {
    filter: grayscale(0);
    opacity: 1;
}

/* ---- Manufacturing banner ---- */
.manufacturing-banner {
    background: var(--color-primary);
    text-align: center;
    padding-block: var(--space-20);
}

.manufacturing-banner .section-label {
    justify-content: center;
    margin-bottom: var(--space-4);
}

.manufacturing-banner .section-label::before,
.manufacturing-banner .section-label::after {
    content: '';
    display: block;
    width: 2rem;
    height: 1px;
    background: var(--color-accent-green);
}

.manufacturing-banner__title {
    font-size: clamp(var(--font-size-2xl), 4vw, var(--font-size-4xl));
    font-weight: var(--font-weight-bold);
    color: var(--color-white);
    margin-bottom: var(--space-4);
}

.manufacturing-banner__subtitle {
    font-size: var(--font-size-md);
    color: rgba(255, 255, 255, .7);
    max-width: 600px;
    margin-inline: auto;
    line-height: var(--line-height-loose);
}

/* ---- Future tracks grid ---- */
.tracks-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(0, 1fr));
    height: var(--track-height, 800px);
    margin-top: var(--space-10);
    gap: var(--space-4);
    padding-inline: var(--container-padding);
    max-width: var(--container-max);
    margin-inline: auto;
    overflow: visible;
}

.track-item {
    position: relative;
    overflow: hidden;
    cursor: pointer;
    border-radius: var(--radius-lg);
}

/* Background image — separate element so transform doesn't affect overlay/text */
.track-item__bg {
    position: absolute;
    inset: -5%;
    background-size: cover;
    background-position: center;
    filter: grayscale(100%);
    transition: transform 0.6s ease;
}

.track-item:hover .track-item__bg {
    filter: grayscale(0);
    transform: scale(1.1);
}

/* Gradient overlay — hidden by default, fades in on hover */
.track-item__overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top,
            rgba(5, 12, 40, 0.82) 0%,
            rgba(5, 12, 40, 0.35) 50%,
            rgba(5, 12, 40, 0.0) 100%);
    opacity: 0;
    transition: opacity 0.4s ease;
}

.track-item:hover .track-item__overlay {
    opacity: 1;
}

/* Content block — sits at bottom, slides up on hover */
.track-item__content {
    position: absolute;
    bottom: 0;
    inset-inline: 0;
    padding: var(--space-6) var(--space-5);
    transform: translateY(8px);
    opacity: 0;
    transition: transform 0.4s ease, opacity 0.4s ease;
}

.track-item__icon {
    margin: auto;
    width: 48px;
    height: 48px;
    margin-bottom: 1rem; /* 图标和文字的间距 */
}

.track-item__icon svg {

}

.track-item:hover .track-item__content {
    transform: translateY(0);
    opacity: 1;
}

.track-item__title {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-bold);
    color: var(--color-white);
    text-align: center;
}

/* Responsive — stack to 2 cols on mobile */
@media (max-width: 768px) {
    .tracks-grid {
        grid-template-columns: repeat(2, 1fr);
        height: auto;
    }

    .track-item {
        height: var(--track-height, 200px);
    }

    /* Always show overlay and title on mobile (no hover) */
    .track-item__overlay {
        opacity: 1;
    }

    .track-item__content {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ---- Home contact section ---- */
.home-contact {
    background: var(--color-gray-100);
}

.home-contact__inner {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: var(--space-16);
    align-items: start;
}

.home-contact__info {
    display: flex;
    flex-direction: column;
    gap: var(--space-5);
}

.home-contact__item {
    display: flex;
    align-items: flex-start;
    gap: var(--space-4);
    padding: var(--space-5);
    background: var(--gradient-silver);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    transition: box-shadow var(--transition-base);
}

.home-contact__item:hover {
    box-shadow: var(--shadow-md);
}

.home-contact__icon {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-md);
    background: var(--color-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
    flex-shrink: 0;
}

.home-contact__item-label {
    font-size: var(--font-size-xs);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-gray-500);
    margin-bottom: var(--space-1);
}

.home-contact__item-value {
    font-size: var(--font-size-md);
    font-weight: var(--font-weight-semibold);
    color: var(--color-primary);
}

.home-contact__item-sub {
    font-size: var(--font-size-xs);
    color: var(--color-gray-500);
    margin-top: var(--space-1);
}

.home-contact__form-wrap {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    padding: var(--space-8);
    box-shadow: var(--shadow-md);
}

.home-contact__form-title {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-primary);
    margin-bottom: var(--space-6);
}

/* CF7 shortcode styles inside contact form wrap */
.home-contact__form-wrap .wpcf7 input[type="text"],
.home-contact__form-wrap .wpcf7 input[type="email"],
.home-contact__form-wrap .wpcf7 input[type="tel"],
.home-contact__form-wrap .wpcf7 textarea {
    width: 100%;
    padding: var(--space-3) var(--space-4);
    border: 1px solid var(--color-gray-300);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-sm);
    color: var(--color-gray-800);
    background: var(--color-white);
    transition: border-color var(--transition-fast);
    margin-bottom: var(--space-4);
}

.home-contact__form-wrap .wpcf7 input:focus,
.home-contact__form-wrap .wpcf7 textarea:focus {
    outline: none;
    border-color: var(--color-primary);
}

.home-contact__form-wrap .wpcf7 input[type="submit"] {
    width: 100%;
    padding: var(--space-4);
    background: var(--color-primary);
    color: var(--color-white);
    border: none;
    border-radius: var(--radius-sm);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    cursor: pointer;
    transition: background var(--transition-fast);
}

.home-contact__form-wrap .wpcf7 input[type="submit"]:hover {
    background: var(--color-primary-light);
}

/* ---- Responsive ---- */
@media (max-width: 1024px) {
    .stats__grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

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

    .home-contact__inner {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .hero {
        height: 100svh;
    }

    .hero__content {
        padding-bottom: 120px;
    }

    .hero__dots {
        bottom: 200px;
    }

    .hero__stats-inner {
        /* cap at 3 columns on tablets */
        grid-template-columns: repeat(min(var(--stat-cols, 3), 3), 1fr);
    }

    .hero__stat-item {
        padding: var(--space-3) var(--space-2);
    }

    .hero__actions {
        flex-direction: column;
        align-items: flex-start;
    }

    .about-home__inner {
        grid-template-columns: 1fr;
    }

    .solutions__panels {
        height: 380px;
    }

    .supply-chain__grid {
        grid-template-columns: 1fr;
    }

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

    .stat-item {
        border-left: none;
        border-bottom: 1px solid var(--color-gray-200);
        padding: var(--space-4);
    }
}

@media (max-width: 480px) {
    .hero__stats-inner {
        /* cap at 2 columns on mobile */
        grid-template-columns: repeat(min(var(--stat-cols, 2), 2), 1fr);
    }

    .hero__stat-label {
        font-size: 0.65rem;
    }

    .gallery-grid {
        grid-template-columns: 1fr 1fr;
    }

    .stats__grid {
        grid-template-columns: 1fr 1fr;
    }
}