section .product-card--main {
    position: relative;
    z-index: 4;
    width: 70%;
    -webkit-backdrop-filter: blur(20px);
    backdrop-filter: blur(20px);
    padding: 6vh 4.5vh;
    margin: 0vh auto 4vh;
    background: rgba(238, 238, 238, 0.72);
    border: 1px solid rgba(40, 40, 40, .08);
    border-radius: 32px;
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    box-shadow: 0 18px 40px rgba(0, 0, 0, .08), inset 0 1px 0 rgba(255, 255, 255, .55);
}

section .product-card__title {
    font-size: 2.9vw;
    font-weight: 700;
    line-height: 1.2;
    margin: 1vh 0 3vh;
}

section .product-card__subtitle {
    color: #848484;
    font-weight: 500;
    font-size: 1vw;
    line-height: 1.6;
    letter-spacing: 1.5px;
}

section .product-card__description {
    font-weight: 400;
    font-size: 1.1vw;
    letter-spacing: 0.2vw;
    line-height: 2;
}

section .product-card__description h3 {
    font-size: 1.1vw;
    letter-spacing: 0.2vw;
    line-height: 2;
}

section .product-card__description ul {
    margin: 4% auto;
    display: flex;
    flex-direction: column;
    font-size: 1.05vw;
}

section .product-card__description ul li {
    border: 1.5px solid #6c6c6c;
    border-radius: 0.4vw;
    padding: 1vw;
    margin: 1% 0;
    transition: color .1s ease, background-color .1s ease;
}

/* product-card.css：只管 hover 行為，不管顏色 */
section .product-card__description ul li:hover {
    color: var(--product-accent-text);
    background-color: var(--product-accent-bg);
}




section .product-card .product-specifications {
    font-weight: 200;
    display: flex;
    align-items: center;
    padding: 2% 0;
    margin: 3% 0;
}

section .product-card .product-specifications__title {
    font-size: 16px;
    margin-right: 3%;
}

section .product-card .product-specifications__group {
    display: flex;
    align-items: center;
    margin: 0 3%;
}

section .product-card .product-specifications__size {
    font-size: 14px;
    margin: 0 4px;
}

section .product-card .product-specifications__options {
    display: flex;
    gap: 5px;
}

section .product-card .product-specifications__option {
    padding: 5px 10px;
    border: 1px solid #8b8b8b;
    border-radius: 5px;
    font-size: 14px;
}

section .product-card__more {
    font-size: 12px;
    color: #313131;
    letter-spacing: 2px;
}