.product-card-section {
    width: 100%;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 30px 0;
    padding-bottom: 0;
    background: #e7e7e7;
    text-align: center;
    overflow: hidden;
}

.product-header {
    width: 90%;
    padding-left: 1rem;
    display: flex;
    align-items: flex-start;
    justify-content: left;
    margin-left: 0;
}

.product-card-section .product-header h2 {
    text-align: left;
    position: relative;
    color: #0a3d62;
    z-index: 10;
    font-size: clamp(1.8rem, 4vw, 2.5rem);
    font-weight: bold;
    margin: 0;
}

.product-card-section .product-title {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    margin-left: 0;
    margin-top: 0px;
    margin-bottom: 15px;
    padding-left: 1rem;
    padding-right: 1rem;
    width: 90%;
    vertical-align: middle;
}

.product-card-section .product-title p {
    margin: 0;
    flex: 1;
    min-width: 0;
    text-align: left;
    margin-left: 0;
    font-size: clamp(1.2rem, 3vw, 1.5rem);
    color: #718096;
    border-bottom: none;
    text-decoration: none;
}

.product-card-section .swiper-container {
    width: 100%;
    height: 460px;
    overflow: visible;
    position: relative;
}

.product-card-section .swiper-slide {
    display: flex;
    justify-content: center;
    align-items: center;
    transition: transform 0.4s ease, opacity 0.4s ease;
    transform: translateY(30px);
    opacity: 0;
}

/* .product-card-section .swiper-slide {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.6s ease, transform 0.6s ease;
} */

.product-card-section .swiper-slide.loaded {
    opacity: 1;
    transform: translateY(0);
}

.product-card-section .swiper-slide.active .card {
    transform: scale(1.1);
    transition: transform 0.3s ease;
    z-index: 10;
}

.product-card-section .card {
    position: relative;
    width: 250px;
    height: 350px;
    perspective: 1000px;
    margin: 0 auto;
    border-radius: 10px;
    /* box-shadow: 0 4px 15px rgba(0, 32, 77, 0.05); */
    background-color: transparent;
    transition: transform 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94), box-shadow 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.card-badge {
    position: absolute;
    top: 5px;
    left: 5px;
    background: #1e90ff;
    color: white;
    padding: 5px 10px;
    font-size: 1rem;
    font-weight: bold;
    text-transform: uppercase;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.2);
    z-index: 10;
}

.product-card-section .card-logo {
    position: absolute;
    top: 10px;
    right: 10px;
    width: 30px;
    height: auto;
    z-index: 10;
    object-fit: contain;
}

.product-card-section .card-inner {
    position: relative;
    width: 100%;
    height: 100%;
    transform-style: preserve-3d;
    transition: transform 0.8s cubic-bezier(0.76, 0, 0.24, 1);
}

.product-card-section .card:hover .card-inner {
    transform: rotateY(180deg);
}

.product-card-section .card-front,
.product-card-section .card-back {
    position: absolute;
    width: 100%;
    height: 100%;
    backface-visibility: hidden;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    background: white;
    padding: 10px;
    border-radius: 10px;
    box-shadow: 0 4px 15px rgba(0, 32, 77, 0.05);
    transition: transform 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94), box-shadow 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

/* 
.product-card-section .card-back {
    transform: rotateY(180deg); 
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 20px;
    box-sizing: border-box;
} */

.product-card-section .card-back {
    position: relative;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    color: white;
    padding: 0;
}

.product-card-section .card-back::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.4);
    z-index: 0;
    border-radius: 10px;
}

/* 確保 card-back 的內容在遮罩層之上 */
.product-card-section .card-back-content {
    position: relative;
    z-index: 1;
    width: 100%;
    height: 100%;
    padding: 20px;
    box-sizing: border-box;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.product-card-section .swiper-slide.swiper-slide-active .card-front,
.product-card-section .swiper-slide.swiper-slide-active .card-back {
    box-shadow: 0 15px 40px rgba(0, 32, 77, 0.15);
}

.product-card-section .card-image {
    width: 100%;
    height: auto;
    overflow: hidden;
}

.product-card-section .card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
}

.product-card-section .card-text {
    width: 100%;
    height: 25%;
    padding: 10px;
    box-sizing: border-box;
    background: white;
    display: flex;
    flex-direction: column;
    justify-content: center;
    flex-shrink: 0;
}

.product-card-section .card-text h3 {
    font-size: 1rem;
    margin: 0;
    padding-top: 10px;
    color: #0a3d62;
}

.product-card-section .card-text p {
    font-size: 0.9rem;
    color: #333;
    margin: 5px 0 0;
}

.product-card-section .card-back {
    transform: rotateY(180deg);
}

.product-card-section .card-back p {
    padding-bottom: 15px;
}

.product-card-section .swiper-pagination {
    position: relative;
    display: flex;
    justify-content: center;
    margin-top: 20px;
    text-align: center;
    gap: 4px;
    margin-bottom: 15px;
}

.product-card-section .more-button-container {
    flex: 0 0 auto;
    margin: 0;
    width: auto;
}

.product-card-section .more-button-container .btn-product {
    font-size: 1rem;
    white-space: nowrap;
    --fg: #eaf1ff;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
    padding: .8rem 1.1rem;
    border-radius: 8px;
    border: 1px solid rgba(255, 255, 255, .08);
    color: var(--fg);
    background: linear-gradient(135deg, rgb(0, 53, 86), #007acc);
    box-shadow: 0 1px 0 rgba(255, 255, 255, .05) inset, 0 12px 24px rgba(0, 0, 0, .28);
    transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
    cursor: pointer;
    text-decoration: none;
}

.product-card-section .more-button-container .btn-product:hover {
    transform: scale(1.05) translateY(-2px);
    box-shadow: 0 16px 30px rgba(0, 0, 0, .4);
    background: linear-gradient(135deg, #007acc, #00c3ff);
}

.product-footer {
    --wave-h: 140px;     
    --overlap-amt: 48px;
    display: flex;
    /* flex-direction: column;
    align-items: flex-start; */
    padding-top: 10px;
    padding-bottom: 30px;
    border-top: 1.5px solid #f0f0f0;
    width: 100%;
    padding-left: 0rem;
    padding-right: 0rem;

    position: relative;
    overflow: hidden;
    --footer-bg: #f7fbff;
    background: var(--footer-bg);
    background: linear-gradient(180deg, #f7fbff 0%, #7cbaf4 100%);

    --particle-color: 20, 120, 220;
    --particle-dot-alpha: 1;
    --particle-line-alpha: 0.6;
    --particle-max: 220;
    --icon-hover: #0e6abf;
}

.product-footer-inner {
    width: min(90%, 1200px);
    margin: 0 auto;
    padding: 0 1rem;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
    position: relative;
    z-index: 2;
}

.product-footer #about-custom {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    display: block;
    pointer-events: none;
    z-index: 0;
}

.product-footer>*:not(#about-custom) {
    position: relative;
    z-index: 1;
}

@media (prefers-reduced-motion: reduce) {
    .product-footer #about-custom {
        display: none;
    }
}

.product-footer h3 {
    font-size: clamp(1.5rem, 3.8vw, 2.25rem);
    font-weight: 700;
    color: #0a3d62;
    letter-spacing: 0.5px;
    margin: 0;
}

.product-footer-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    margin: 0;
    padding: 0;
}

.product-footer p {
    color: #718096;
    margin: 0;
    padding: 0;
    font-size: clamp(0.8rem, 3vw, 1.4rem);
    text-align: left;
    justify-content: center;
}

.btn-custom-service {
    font-size: 1rem;
    white-space: nowrap;
    --fg: #eaf1ff;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
    padding: .8rem 1.1rem;
    border-radius: 8px;
    border: 1px solid rgba(255, 255, 255, .08);
    color: var(--fg);
    background: linear-gradient(135deg, rgb(0, 53, 86), #007acc);
    box-shadow: 0 1px 0 rgba(255, 255, 255, .05) inset, 0 12px 24px rgba(0, 0, 0, .28);
    transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
    cursor: pointer;
    text-decoration: none;
    white-space: nowrap;
}

.btn-custom-service:hover,
.btn-custom-service:focus {
    transform: translateY(-4px);
    box-shadow: 0 8px 25px rgba(0, 107, 253, 0.4);
}

@media (max-width: 600px) {
    .btn-custom-service {
        padding: 0.6rem 1rem;
        font-size: 0.9rem;
    }

    .product-card-section .more-button-container .btn-product {
        padding: 0.6rem 1rem;
        font-size: 0.9rem;
    }
}

/* .features-grid {
    margin-top: 1.2rem;
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: clamp(12px, 2.2vw, 24px);
    margin-bottom: 60px;
}

.cc-cards .feature-item {
    --corner: 16px;
    position: relative;
    overflow: hidden;
    background: rgba(255, 255, 255, .9);
    border: 1px solid rgba(0, 0, 0, .06);
    border-radius: 18px;
    padding: clamp(18px, 2.4vw, 26px);
    transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
    clip-path: polygon(0 0, calc(100% - var(--corner)) 0, 100% var(--corner), 100% 100%, var(--corner) 100%, 0 calc(100% - var(--corner)));
    backdrop-filter: blur(3px);
}

.cc-cards .feature-item:hover {
    transform: translateY(-4px);
    border-color: rgba(0, 0, 0, .12);
    box-shadow: 0 10px 24px rgba(0, 0, 0, .18);
}

.cc-cards .feature-item::before {
    content: "";
    position: absolute;
    inset: 0;
    z-index: -1;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    background-size: auto 65%; 
    opacity: 0.36; 
    mix-blend-mode: normal;
    pointer-events: none;
}

.cc-cards .feature-item:nth-child(1)::before {
    background-image: url("../images/home/custom/mining.webp");
}

.cc-cards .feature-item:nth-of-type(2)::before {
    background-image: url("../images/home/custom/grain1.webp");
}

.cc-cards .feature-item:nth-of-type(3)::before {
    background-image: url("../images/home/custom/pump2.webp");
}

.cc-cards .feature-item:nth-of-type(4)::before {
    background-image: url("../images/home/custom/ar1.webp");
}

.feature__title {
    color: #0f2940;
    font-size: clamp(1rem, 2.4vw, 1.25rem);
    margin: 8px 0 6px;
    font-weight: 700;
}

.feature__desc {
    color: #3d5873;
    font-size: clamp(.86rem, 2.2vw, .98rem);
    line-height: 1.6;
    margin: 0 0 12px;
}

.btn__link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 999px;
    border: 1px solid rgba(0, 0, 0, .12);
    color: rgb(var(--particle-color));
    transition: transform .2s ease, background .2s ease, color .2s ease, border-color .2s ease;
}

.btn__link:hover {
    background: rgba(0, 0, 0, .05);
    color: var(--icon-hover);
    border-color: rgba(0, 0, 0, .2);
}

.feature__icon {
    font-size: clamp(28px, 3.6vw, 40px);
    line-height: 1;
    color: rgb(var(--particle-color));
    margin-bottom: 14px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: color .2s ease, transform .2s ease;
}

.cc-cards .feature-item:hover .feature__icon {
    color: var(--icon-hover);
    transform: translateY(-2px) scale(1.04);
}

.feature__icon svg {
    width: 1em;
    height: 1em;
    display: block;
} */

/* .feature__icon .v-stroke,
.feature__icon .v-solid,
.feature__icon .v-duo {
    display: none;
}

.feature__icon.icon--stroke .v-stroke {
    display: inline;
}

.feature__icon.icon--solid .v-solid {
    display: inline;
}

.feature__icon.icon--duotone .v-duo {
    display: inline;
}

.feature__icon .v-stroke * {
    fill: none;
    stroke: currentColor;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.feature__icon .v-solid * {
    fill: currentColor;
}

.feature__icon .v-duo .duo-primary {
    fill: currentColor;
    opacity: 1;
}

.feature__icon .v-duo .duo-secondary {
    fill: currentColor;
    opacity: .35;
}

.wave-sep.dual {
    position: absolute;
    left: 0;
    right: 0;
    bottom: -1px;
    height: 140px;
    pointer-events: none;
    z-index: 1;
}

.wave-sep.dual svg {
    position: absolute;
    left: 0;
    bottom: 0;
    width: 100%;
    height: 100%;
    display: block;
}

.wave-sep.dual .wave-back path {
    fill: #7cbaf4;
}

.wave-sep.dual .wave-front path {
    fill: #a3d0f9;
}

.wave-sep.dual .wave-front {
    transform: translateY(-6px);
}

@keyframes bobUpDown {
    0% {
        transform: translateY(-6px)
    }

    50% {
        transform: translateY(-2px)
    }

    100% {
        transform: translateY(-6px)
    }
}

@keyframes bobUpDownBk {
    0% {
        transform: translateY(0)
    }

    50% {
        transform: translateY(4px)
    }

    100% {
        transform: translateY(0)
    }
}

.wave-sep.dual .wave-front {
    animation: bobUpDown 6s ease-in-out infinite;
}

.wave-sep.dual .wave-back {
    animation: bobUpDownBk 8s ease-in-out infinite;
}

@media (prefers-reduced-motion: reduce) {

    .wave-sep.dual .wave-front,
    .wave-sep.dual .wave-back {
        animation: none;
    }
}

.features-bottom {
    background: #ffffff;
    border-radius: 20px;
    display: grid;
    grid-template-columns: 1fr min(52%, 560px);
    gap: clamp(18px, 3vw, 32px);
    align-items: center;
    padding: clamp(18px, 3vw, 28px);
    box-shadow: 0 18px 36px rgba(0, 0, 0, .08);
}

.overlap-wave {
    width: min(90%, 1200px);
    margin: -70px auto 0;
    margin-top: calc(-1 * var(--overlap-amt));
    position: relative;
}

@media (max-width: 1100px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 640px) {
    .features-grid {
        grid-template-columns: 1fr;
    }

    .features-bottom {
        grid-template-columns: 1fr;
    }

    .overlap-wave {
        margin-top: -40px;
    }
}

.features-bottom .lead {
    color: #64748b;
    margin: 0 0 12px;
}

.ticks {
    list-style: none;
    padding: 0;
    margin: 0 0 18px;
}

.ticks li {
    display: flex;
    gap: 10px;
    color: #0f172a;
    margin: 8px 0;
}

.ticks li::before {
    content: "✔";
    color: #16a34a;
    font-weight: 700;
}

.btn-demo {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: #22c55e;
    color: #0b2b15;
    border-radius: 10px;
    padding: .9rem 1.2rem;
    text-decoration: none;
    font-weight: 700;
    box-shadow: 0 10px 24px rgba(34, 197, 94, .3);
    transition: transform .2s ease, box-shadow .2s ease;
}

.btn-demo:hover {
    transform: translateY(-3px);
    box-shadow: 0 14px 30px rgba(34, 197, 94, .38);
} */

/* @media (max-width: 600px) {
    .btn-custom-service {
        padding: .6rem 1rem;
        font-size: .9rem;
    }
} */