/**
 * battery-manufacturing.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
 */

.bm-inner {
    max-width: 1480px;
    margin: 0 auto;
    padding: 0 48px;
    box-sizing: border-box;
}

/* ========== 1：双栏引言 ========== */
.bm-intro-2col {
    padding: 56px 0 64px;
    background: #ffffff;
}

.bm-section-title {
    font-size: 32px;
    font-family: "HarmonyOS Sans SC Light", sans-serif;
    font-weight: normal;
    color: #132A3E;
    margin: 0 0 28px 0;
    line-height: 1.3;
}

.bm-two-col {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px 56px;
    align-items: start;
}

.bm-col p {
    font-size: 17px;
    line-height: 1.8;
    color: #444;
    margin: 0 0 16px 0;
}

.bm-col p:last-child {
    margin-bottom: 0;
}

/* ========== 2：三卡理由区（.bm-trio-*，本页专用） ========== */
.bm-trio {
    padding: 56px 0 56px;
    background-color: #00233D;
}

.bm-trio-title,
.bm-trio-heading {
    font-size: 44px;
    font-family: "HarmonyOS Sans SC Light", sans-serif;
    font-weight: normal;
    color: #ffffff;
    text-align: center;
    margin: 0 0 32px 0;
    line-height: 1.25;
}

/* 兼容旧静态 HTML：bm-section + bm-inner 包裹时，标题与栅格仍全宽居中 */
.bm-trio.bm-section .bm-inner {
    max-width: none;
    padding: 0;
    width: 100%;
}

.bm-trio-grid {
    max-width: 1480px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 24px;
    box-sizing: border-box;
}

.bm-trio-card {
    width: 460px;
    height: auto;
    min-height: 0;
    box-sizing: border-box;
    padding: 24px 28px;
    color: rgba(255, 255, 255, 0.95);
    display: flex;
    flex-direction: column;
    align-items: stretch;
}

.bm-trio-card h3,
.bm-trio-card-title {
    margin: 0 0 12px 0;
    font-size: 20px;
    font-weight: 600;
    color: #ffffff;
    text-align: center;
}

.bm-trio-card p,
.bm-trio-card-desc {
    margin: 0;
    font-size: 15px;
    line-height: 1.65;
    text-align: left;
}

.bm-param-label {
    font-size: 17px;
    font-weight: 600;
    color: #132A3E;
    margin: 0 0 8px 0;
}

.bm-eguide-tight {
    margin-top: 8px;
    margin-bottom: 16px;
}

.bm-btn-navy {
    display: inline-block;
    margin-top: 16px;
    padding: 12px 28px;
    font-size: 16px;
    font-weight: 500;
    color: #ffffff;
    background-color: #132A3E;
    border: none;
    border-radius: 999px;
    text-decoration: none;
    cursor: pointer;
}

.bm-btn-navy:hover {
    background-color: #1a3d56;
    color: #ffffff;
}

.bm-btn-home-pill {
    color: #3d3d3d;
    background-color: transparent;
    border: 1px solid #00A1E9;
    font-weight: 600;
    transition: all 0.3s ease;
}

.bm-btn-home-pill:hover {
    background-color: rgba(0, 161, 233, 0.12);
    color: #3d3d3d;
    border-color: #00A1E9;
}

/* ========== 六卡 — 选择精优达的理由 ========== */
.bm-reasons {
    padding: 56px 0 64px;
    background: #e9f8ff;
}

.bm-reasons-heading {
    font-size: 30px;
    font-weight: 600;
    color: #132A3E;
    text-align: center;
    margin: 0 0 36px 0;
}

.bm-reasons-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 22px;
}

.bm-reasons-card {
    background: #ffffff;
    padding: 24px 20px 28px;
    text-align: center;
    box-sizing: border-box;
}

.bm-reasons-card h3 {
    font-size: 18px;
    font-weight: 600;
    color: #132A3E;
    margin: 0 0 12px 0;
}

.bm-reasons-card p {
    font-size: 15px;
    line-height: 1.65;
    color: #333;
    margin: 0;
    text-align: center;
}

.bm-inline-link {
    color: #00A1E9;
    text-decoration: underline;
}

.bm-inline-link:hover {
    color: #0088c7;
}

/* ========== 产品四列（白底，栅格用公共 .pc-grid） ========== */
.bm-products {
    padding-top: 56px !important;
    padding-bottom: 72px !important;
}

/* 文案：≤1679 用 --kyd-text-scale；≥1680 定稿 */
@media screen and (max-width: 1679px) {
    .bm-section-title {
        font-size: max(var(--kyd-text-sm-min, 14px), calc(32px * var(--kyd-text-scale, 1)));
    }

    .bm-col p {
        font-size: max(var(--kyd-text-sm-min, 14px), calc(17px * var(--kyd-text-scale, 1)));
    }

    .bm-trio-title,
    .bm-trio-heading {
        font-size: max(var(--kyd-text-sm-min, 14px), calc(44px * var(--kyd-text-scale, 1)));
    }

    .bm-trio-card {
        width: 100%;
        max-width: 460px;
    }

    .bm-trio-card h3,
    .bm-trio-card-title {
        font-size: max(var(--kyd-text-sm-min, 14px), calc(20px * var(--kyd-text-scale, 1)));
    }

    .bm-trio-card p,
    .bm-trio-card-desc {
        font-size: max(var(--kyd-text-sm-min, 14px), calc(15px * var(--kyd-text-scale, 1)));
    }

    .bm-param-label {
        font-size: max(var(--kyd-text-sm-min, 14px), calc(17px * var(--kyd-text-scale, 1)));
    }

    .bm-btn-navy {
        font-size: max(var(--kyd-text-sm-min, 14px), calc(16px * var(--kyd-text-scale, 1)));
    }

    .bm-reasons-heading {
        font-size: max(var(--kyd-text-sm-min, 14px), calc(30px * var(--kyd-text-scale, 1)));
    }

    .bm-reasons-card h3 {
        font-size: max(var(--kyd-text-sm-min, 14px), calc(18px * var(--kyd-text-scale, 1)));
    }

    .bm-reasons-card p {
        font-size: max(var(--kyd-text-sm-min, 14px), calc(15px * var(--kyd-text-scale, 1)));
    }
}

/* Large 1440～1679 */
@media screen and (min-width: 1440px) and (max-width: 1679px) {
    .bm-inner {
        padding-left: 36px;
        padding-right: 36px;
    }
}

/* Mid 1025～1439（原 ≤1200 双栏收为一列、理由三→二） */
@media screen and (min-width: 1025px) and (max-width: 1439px) {
    .bm-inner {
        padding-left: 28px;
        padding-right: 28px;
    }

    .bm-two-col {
        grid-template-columns: 1fr;
        gap: 24px;
    }

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

/* Small 768～1024（原 ≤900 内边距 / 理由单列） */
@media screen and (min-width: 768px) and (max-width: 1024px) {
    .bm-inner {
        padding-left: 24px;
        padding-right: 24px;
    }

    .bm-two-col {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    .bm-trio-title,
    .bm-trio-heading {
        margin-bottom: 28px;
    }

    .bm-reasons-grid {
        grid-template-columns: 1fr;
    }
}

/* Phone ≤767 */
@media screen and (max-width: 767px) {
    .bm-inner {
        padding-left: 16px;
        padding-right: 16px;
    }

    .bm-intro-2col {
        padding: 40px 0 48px;
    }

    .bm-two-col {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .bm-trio {
        padding: 40px 0;
    }

    .bm-trio-title,
    .bm-trio-heading {
        margin-bottom: 28px;
    }

    .bm-reasons {
        padding: 40px 0 48px;
    }

    .bm-reasons-heading {
        margin-bottom: 28px;
    }

    .bm-reasons-grid {
        grid-template-columns: 1fr;
    }

    .bm-products {
        padding-top: 48px !important;
        padding-bottom: 56px !important;
    }
}