.battery-detail {
    background: #f6f8fb;
}

.battery-detail-hero {
    position: relative;
    display: grid;
    grid-template-columns: minmax(0, 0.95fr) minmax(420px, 1.05fr);
    align-items: center;
    min-height: 610px;
    padding: 82px max(24px, calc((100% - 1200px) / 2));
    overflow: hidden;
    color: #fff;
    background:
        radial-gradient(circle at 82% 20%, rgba(31, 211, 222, 0.18), transparent 28%),
        linear-gradient(125deg, #061426 0%, #0a2b52 58%, #005f75 100%);
}

.battery-detail-hero::before {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
    background-size: 46px 46px;
    content: "";
    mask-image: linear-gradient(90deg, transparent 10%, #000 70%);
}

.battery-detail-hero-copy,
.battery-detail-visual {
    position: relative;
    z-index: 1;
}

.battery-detail-eyebrow {
    margin-bottom: 14px;
    color: #5ee4df;
    font-size: 13px;
    font-weight: 800;
    letter-spacing: 0.18em;
}

.battery-detail-hero h1 {
    margin-bottom: 10px;
    font-size: clamp(42px, 5vw, 66px);
    line-height: 1.15;
    letter-spacing: -0.055em;
}

.battery-detail-subtitle {
    margin-bottom: 26px;
    color: rgba(255, 255, 255, 0.92);
    font-size: clamp(20px, 2.2vw, 28px);
    font-weight: 700;
}

.battery-detail-lead {
    max-width: 630px;
    margin-bottom: 34px;
    color: rgba(255, 255, 255, 0.68);
    font-size: 17px;
    line-height: 1.8;
}

.battery-detail-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.battery-detail-actions a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 144px;
    min-height: 50px;
    padding: 12px 22px;
    border: 1px solid rgba(255, 255, 255, 0.26);
    border-radius: 9px;
    font-weight: 800;
}

.battery-detail-primary {
    border-color: #5ee4df !important;
    color: #04203b;
    background: #5ee4df;
}

.battery-detail-secondary {
    color: #fff;
    background: rgba(255, 255, 255, 0.05);
}

.battery-detail-visual {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 420px;
    margin-left: 46px;
    padding: 48px;
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 28px;
    background: linear-gradient(145deg, rgba(255, 255, 255, 0.13), rgba(255, 255, 255, 0.04));
    box-shadow: 0 36px 80px rgba(0, 0, 0, 0.25);
    backdrop-filter: blur(12px);
}

.battery-detail-visual span {
    position: absolute;
    top: 22px;
    left: 26px;
    color: rgba(255, 255, 255, 0.48);
    font-size: 11px;
    font-weight: 800;
    letter-spacing: 0.15em;
}

.battery-detail-visual img {
    width: 100%;
    max-height: 340px;
    object-fit: contain;
    filter: drop-shadow(0 24px 22px rgba(0, 0, 0, 0.28));
}

.battery-detail-nav {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: repeat(7, minmax(0, 1fr));
    width: min(calc(100% - 48px), 1200px);
    margin: -34px auto 0;
    overflow: hidden;
    border: 1px solid #e1e7ef;
    border-radius: 16px;
    background: #fff;
    box-shadow: 0 16px 44px rgba(16, 38, 68, 0.12);
}

.battery-detail-nav a {
    padding: 21px 10px;
    color: #667085;
    font-weight: 800;
    text-align: center;
}

.battery-detail-nav a + a {
    border-left: 1px solid #e9edf3;
}

.battery-detail-nav a:hover,
.battery-detail-nav a[aria-current="page"] {
    color: #004098;
    background: #eef5ff;
}

.battery-detail-content {
    width: min(calc(100% - 48px), 1200px);
    margin: 0 auto;
    padding: 86px 0 110px;
}

.battery-detail-highlights {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
    margin-bottom: 96px;
}

.battery-detail-highlights article {
    display: flex;
    align-items: center;
    min-height: 110px;
    padding: 28px;
    border: 1px solid #e1e7ef;
    border-radius: 16px;
    background: #fff;
}

.battery-detail-highlights article > span {
    width: 12px;
    height: 12px;
    margin-right: 16px;
    border: 3px solid #fff;
    border-radius: 50%;
    background: #0eb7bd;
    box-shadow: 0 0 0 5px rgba(14, 183, 189, 0.14);
}

.battery-detail-highlights strong {
    color: #102a4c;
    font-size: 19px;
}

.battery-detail-heading {
    margin-bottom: 34px;
}

.battery-detail-heading > p,
.battery-detail-contact > div > p {
    margin-bottom: 8px;
    color: #087e8b;
    font-size: 12px;
    font-weight: 900;
    letter-spacing: 0.16em;
}

.battery-detail-heading h2,
.battery-detail-contact h2 {
    margin-bottom: 10px;
    color: #101828;
    font-size: clamp(30px, 3.5vw, 44px);
    line-height: 1.25;
    letter-spacing: -0.04em;
}

.battery-detail-heading > span {
    color: #667085;
    font-size: 17px;
}

.battery-detail-table-wrap {
    overflow: hidden;
    border: 1px solid #dfe5ed;
    border-radius: 18px;
    background: #fff;
    box-shadow: 0 16px 46px rgba(16, 24, 40, 0.06);
}

.battery-detail-table-wrap table {
    width: 100%;
    border-collapse: collapse;
}

.battery-detail-table-wrap th,
.battery-detail-table-wrap td {
    padding: 18px 24px;
    border-bottom: 1px solid #e9edf3;
    text-align: left;
}

.battery-detail-table-wrap tr:last-child th,
.battery-detail-table-wrap tr:last-child td {
    border-bottom: 0;
}

.battery-detail-table-wrap th {
    width: 30%;
    color: #344054;
    background: #f7f9fc;
    font-weight: 800;
}

.battery-detail-table-wrap td {
    color: #475467;
}

.battery-model-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 24px;
}

.battery-model-card {
    display: flex;
    min-width: 0;
    overflow: hidden;
    flex-direction: column;
    border: 1px solid #dfe5ed;
    border-radius: 18px;
    color: inherit;
    background: #fff;
    box-shadow: 0 12px 32px rgba(16, 24, 40, 0.06);
    transition: border-color 0.25s ease, box-shadow 0.25s ease, transform 0.25s ease;
}

.battery-model-card:hover,
.battery-model-card:focus-visible {
    border-color: #82b7d7;
    box-shadow: 0 22px 46px rgba(16, 24, 40, 0.13);
    transform: translateY(-6px);
}

.battery-model-image {
    display: flex;
    height: 270px;
    align-items: center;
    justify-content: center;
    padding: 24px;
    background: linear-gradient(145deg, #f7f9fc, #eaf0f7);
}

.battery-model-image img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    transition: transform 0.3s ease;
}

.battery-model-card:hover .battery-model-image img {
    transform: scale(1.025);
}

.battery-model-body {
    display: flex;
    flex: 1;
    flex-direction: column;
    padding: 25px 26px 28px;
}

.battery-model-body > p {
    margin-bottom: 7px;
    color: #087e8b;
    font-size: 12px;
    font-weight: 900;
    letter-spacing: 0.08em;
}

.battery-model-body h3 {
    margin: 0 0 9px;
    color: #101828;
    font-size: 23px;
    line-height: 1.35;
}

.battery-model-body > span {
    min-height: 48px;
    margin-bottom: 20px;
    color: #667085;
    font-size: 14px;
    line-height: 1.6;
}

.battery-model-body dl {
    margin: 0 0 24px;
    border-top: 1px solid #e4e7ec;
}

.battery-model-body dl div {
    display: grid;
    grid-template-columns: 72px minmax(0, 1fr);
    gap: 10px;
    padding: 9px 0;
    border-bottom: 1px solid #eef1f5;
}

.battery-model-body dt {
    color: #667085;
    font-size: 13px;
    font-weight: 700;
}

.battery-model-body dd {
    margin: 0;
    color: #1d2939;
    font-size: 13px;
    font-weight: 700;
}

.battery-model-body strong {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: auto;
    color: #004098;
    font-size: 14px;
}

.battery-model-body strong span {
    font-size: 20px;
}

.battery-detail-applications {
    margin-top: 100px;
}

.battery-detail-application-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
}

.battery-detail-application-grid article {
    min-height: 180px;
    padding: 30px;
    border-radius: 18px;
    color: #fff;
    background: linear-gradient(145deg, #0d294b, #115b73);
}

.battery-detail-application-grid span {
    display: block;
    margin-bottom: 34px;
    color: #5ee4df;
    font-size: 13px;
    font-weight: 900;
}

.battery-detail-application-grid h3 {
    margin-bottom: 0;
    font-size: 22px;
}

.battery-detail-contact {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 36px;
    margin-top: 100px;
    padding: 48px 54px;
    border: 1px solid #cfe0f2;
    border-radius: 22px;
    background: linear-gradient(120deg, #fff, #edf6ff);
}

.battery-detail-contact h2 {
    max-width: 700px;
    margin-bottom: 0;
    font-size: clamp(27px, 3vw, 38px);
}

.battery-detail-contact > a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex: 0 0 auto;
    gap: 18px;
    min-height: 54px;
    padding: 13px 24px;
    border-radius: 9px;
    color: #fff;
    background: #004098;
    font-weight: 800;
}

@media (max-width: 900px) {
    .battery-detail-hero {
        grid-template-columns: 1fr;
        padding-top: 64px;
        padding-bottom: 90px;
    }

    .battery-detail-visual {
        min-height: 340px;
        margin: 42px 0 0;
    }

    .battery-detail-highlights,
    .battery-detail-application-grid,
    .battery-model-grid {
        grid-template-columns: 1fr;
    }

    .battery-detail-contact {
        align-items: flex-start;
        flex-direction: column;
    }
}

@media (max-width: 600px) {
    .battery-detail-hero {
        padding-right: 20px;
        padding-left: 20px;
    }

    .battery-detail-visual {
        min-height: 270px;
        padding: 40px 24px 24px;
    }

    .battery-detail-nav {
        grid-template-columns: repeat(7, minmax(92px, 1fr));
        width: calc(100% - 24px);
        overflow-x: auto;
    }

    .battery-detail-nav a {
        padding: 17px 8px;
        font-size: 13px;
    }

    .battery-detail-content {
        width: calc(100% - 32px);
        padding-top: 64px;
    }

    .battery-detail-highlights {
        margin-bottom: 70px;
    }

    .battery-detail-table-wrap th,
    .battery-detail-table-wrap td {
        display: block;
        width: 100%;
        padding: 14px 18px;
    }

    .battery-detail-table-wrap td {
        padding-top: 10px;
    }

    .battery-model-image {
        height: 240px;
    }

    .battery-detail-contact {
        padding: 34px 24px;
    }
}