:root {
    color-scheme: dark;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans CJK SC", "Microsoft YaHei", Arial, sans-serif;
    background: #24427e;
    color: #fff;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    min-width: 320px;
    min-height: 100vh;
    background: #24427e;
}

.product-page {
    width: min(100%, 960px);
    margin: 0 auto;
    padding: 28px 5% 56px;
}

.product-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 24px;
    margin-bottom: 42px;
}

.product-header h1 {
    margin: 0;
    font-size: clamp(20px, 4vw, 28px);
    font-weight: 500;
    line-height: 1.4;
}

.language-control {
    display: flex;
    align-items: center;
    flex: 0 0 auto;
    gap: 10px;
    font-size: 16px;
}

.language-control select,
.language-control a {
    min-width: 132px;
    padding: 8px 30px 8px 10px;
    border: 1px solid rgb(255 255 255 / 45%);
    border-radius: 4px;
    background: #24427e;
    color: #fff;
    font: inherit;
    text-align: center;
    text-decoration: none;
    cursor: pointer;
}

.language-control option {
    background: #fff;
    color: #17233c;
}

.product-table {
    border-top: 1px solid rgb(255 255 255 / 32%);
}

.info-section {
    padding: 24px 2.5%;
    border-bottom: 1px solid rgb(255 255 255 / 32%);
}

.info-section h2 {
    margin: 0;
    font-size: 20px;
    font-weight: 400;
    line-height: 1.5;
}

.info-section h2 span,
.info-label span {
    margin-right: 6px;
}

.info-row {
    display: grid;
    grid-template-columns: 40% 60%;
    align-items: center;
    border-bottom: 1px solid rgb(255 255 255 / 32%);
}

.info-label,
.info-value {
    padding: 24px 6%;
    font-size: 17px;
    line-height: 1.65;
    overflow-wrap: anywhere;
}

.info-label {
    border-right: 1px solid rgb(255 255 255 / 32%);
}

.info-value {
    white-space: pre-line;
}

.info-value img {
    display: block;
    width: auto;
    max-width: 100%;
    max-height: 520px;
    object-fit: contain;
    background: #fff;
}

.info-value a {
    color: #fff;
    text-underline-offset: 4px;
    white-space: normal;
}

.empty-message {
    padding: 48px 0;
    border-top: 1px solid rgb(255 255 255 / 32%);
    font-size: 18px;
    line-height: 1.7;
}

@media (max-width: 600px) {
    .product-page {
        padding: 22px 5% 40px;
    }

    .product-header {
        flex-direction: column-reverse;
        align-items: stretch;
        gap: 24px;
        margin-bottom: 30px;
    }

    .language-control {
        justify-content: flex-end;
    }

    .info-label,
    .info-value {
        padding: 20px 6%;
        font-size: 16px;
    }
}