/**
 * biological-purification.htm — 仅页面特有样式
 * Banner / 图文分栏 / 产品栅格五档已上收：
 *   page-banner-standard.css · shared-split-m1.css · product-card-standard.css
 */

.bp-page {
    background-color: #ffffff;
}

/* ========== 双栏引言（对齐 urban-security 感知模块留白，双段并列） ========== */
.bp-intro-split {
    padding: 88px 0;
    background-color: #ffffff;
    box-sizing: border-box;
}

.bp-intro-split-inner {
    max-width: 1800px;
    margin: 0 auto;
    padding: 0 40px;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    gap: clamp(40px, 5vw, 80px);
    box-sizing: border-box;
}

.bp-intro-split-text {
    flex: 1 1 0;
    max-width: 780px;
    min-width: 0;
    margin: 0;
    font-size: 18px;
    line-height: 1.8;
    color: #333333;
    text-align: left;
}

/* ========== 图文分栏（公共 calibration-m1-* + 本页 .bp-measure-split） ========== */
.bp-measure-split {
    padding: 0 0 88px;
    background: #ffffff;
}

.bp-measure-split--first {
    padding: 0 0 88px;
}

.bp-measure-split > .calibration-m1-content.bp-m1-content {
    padding-bottom: 0;
}

.bp-measure-split--first > .calibration-m1-content.bp-m1-content {
    padding-top: 0;
}

/* ========== 相关产品区段留白（卡片见 product-card-standard.css） ========== */
.bp-products {
    padding: 56px 0 88px;
    background-color: #ffffff;
    box-sizing: border-box;
}

.bp-products .rs-loading,
.bp-products .rs-empty {
    text-align: center;
    color: #666666;
    font-size: 16px;
    padding: 12px 0;
}

@media screen and (max-width: 1679px) {
    .bp-intro-split-text {
        font-size: max(var(--kyd-text-sm-min, 14px), calc(18px * var(--kyd-text-scale, 1)));
    }

    .bp-products .rs-loading,
    .bp-products .rs-empty {
        font-size: max(var(--kyd-text-sm-min, 14px), calc(16px * var(--kyd-text-scale, 1)));
    }
}

@media screen and (max-width: 767px) {
    .bp-intro-split {
        padding: 64px 0;
    }

    .bp-intro-split-inner {
        flex-direction: column;
        align-items: flex-start;
        gap: 20px;
        padding-left: 24px;
        padding-right: 24px;
    }

    .bp-intro-split-text {
        flex: none;
        width: 100%;
        max-width: none;
    }

    .bp-measure-split {
        padding: 0 0 64px;
    }

    .bp-measure-split--first {
        padding: 0 0 64px;
    }

    .bp-products {
        padding: 40px 0 64px;
    }
}