/* =========================================================
   PV1-F SOLAR PHOTOVOLTAIC CABLE
   ROLAN CABLE EVR UNIFIED PRODUCT DETAIL TEMPLATE
   STATIC HTML / NO JAVASCRIPT / NO ANIMATION
========================================================= */

.pv1f-page {
    --pv1f-orange: #f17822;
    --pv1f-orange-dark: #d4560d;
    --pv1f-blue: #075da8;
    --pv1f-blue-dark: #063b73;
    --pv1f-navy: #152438;
    --pv1f-gray: #627187;
    --pv1f-light: #f5f8fc;
    --pv1f-border: #dbe5ee;
    width: 100%;
    overflow: hidden;
    color: var(--pv1f-navy);
    font-family: Arial, Helvetica, sans-serif;
    line-height: 1.65;
    background: #ffffff;
}

.pv1f-page *,
.pv1f-page *::before,
.pv1f-page *::after {
    box-sizing: border-box;
}

.pv1f-page img {
    display: block;
    width: 100%;
    max-width: 100%;
    height: auto;
}

.pv1f-container {
    width: min(1200px, calc(100% - 40px));
    margin: 0 auto;
}

.pv1f-section {
    padding: 76px 0;
}

.pv1f-light {
    background: var(--pv1f-light);
}

.pv1f-heading {
    max-width: 860px;
    margin: 0 auto 42px;
    text-align: center;
}

.pv1f-eyebrow {
    display: inline-block;
    margin-bottom: 9px;
    color: var(--pv1f-orange-dark);
    font-size: 13px;
    font-weight: 800;
    letter-spacing: 1.4px;
    text-transform: uppercase;
}

.pv1f-heading h2 {
    margin: 0 0 14px;
    color: var(--pv1f-navy);
    font-size: 36px;
    line-height: 1.2;
}

.pv1f-heading p {
    margin: 0;
    color: var(--pv1f-gray);
    font-size: 17px;
}

/* HERO */

.pv1f-hero {
    position: relative;
    padding: 76px 0 92px;
    background:
        radial-gradient(
            circle at 84% 18%,
            rgba(241, 120, 34, .21),
            transparent 29%
        ),
        linear-gradient(
            120deg,
            #ffffff 0%,
            #f8fafc 54%,
            #edf4fa 100%
        );
}

.pv1f-hero::before {
    position: absolute;
    inset: 0;
    content: "";
    opacity: .34;
    background-image:
        linear-gradient(
            rgba(7, 93, 168, .055) 1px,
            transparent 1px
        ),
        linear-gradient(
            90deg,
            rgba(7, 93, 168, .055) 1px,
            transparent 1px
        );
    background-size: 38px 38px;
    pointer-events: none;
}

.pv1f-hero-grid {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: 1.04fr .96fr;
    gap: 55px;
    align-items: center;
}

.pv1f-tag {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    padding: 8px 16px;
    margin-bottom: 18px;
    color: var(--pv1f-blue);
    font-size: 13px;
    font-weight: 800;
    letter-spacing: .7px;
    text-transform: uppercase;
    background: #ffffff;
    border: 1px solid rgba(7, 93, 168, .18);
    border-radius: 999px;
    box-shadow: 0 10px 28px rgba(6, 59, 115, .07);
}

.pv1f-tag::before {
    width: 8px;
    height: 8px;
    content: "";
    background: var(--pv1f-orange);
    border-radius: 50%;
}

.pv1f-model {
    margin-bottom: 10px;
    color: var(--pv1f-blue);
    font-size: 18px;
    font-weight: 800;
    letter-spacing: 1px;
}

.pv1f-main-title {
    margin: 0 0 20px;
    color: var(--pv1f-navy);
    font-size: clamp(38px, 5vw, 58px);
    line-height: 1.08;
    letter-spacing: -1.3px;
}

.pv1f-main-title span {
    display: block;
    margin-bottom: 8px;
    color: var(--pv1f-orange-dark);
    font-size: .7em;
}

.pv1f-intro {
    max-width: 680px;
    margin: 0 0 28px;
    color: #56677c;
    font-size: 18px;
}

.pv1f-points {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 11px 20px;
    padding: 0;
    margin: 0 0 31px;
    list-style: none;
}

.pv1f-points li {
    position: relative;
    padding-left: 28px;
    color: #293a4e;
    font-size: 15px;
    font-weight: 600;
}

.pv1f-points li::before {
    position: absolute;
    top: 3px;
    left: 0;
    display: grid;
    width: 19px;
    height: 19px;
    place-items: center;
    content: "✓";
    color: #ffffff;
    font-size: 11px;
    background: var(--pv1f-blue);
    border-radius: 50%;
}

.pv1f-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 13px;
}

.pv1f-btn {
    display: inline-flex;
    min-height: 50px;
    align-items: center;
    justify-content: center;
    padding: 13px 25px;
    color: #ffffff !important;
    font-size: 15px;
    font-weight: 800;
    text-decoration: none !important;
    background: linear-gradient(135deg, #ff8935, #d7560c);
    border: 1px solid var(--pv1f-orange-dark);
    border-radius: 7px;
    box-shadow: 0 13px 30px rgba(213, 86, 12, .23);
}

.pv1f-btn-secondary {
    color: var(--pv1f-blue-dark) !important;
    background: #ffffff;
    border-color: rgba(6, 59, 115, .24);
    box-shadow: none;
}

.pv1f-hero-photo {
    position: relative;
    padding: 22px;
    background: #ffffff;
    border: 1px solid var(--pv1f-border);
    border-radius: 24px;
    box-shadow: 0 28px 65px rgba(6, 59, 115, .15);
}

.pv1f-hero-photo img {
    aspect-ratio: 1 / 1;
    object-fit: contain;
    background: #ffffff;
    border-radius: 17px;
}

.pv1f-photo-badge {
    position: absolute;
    top: 35px;
    left: 35px;
    z-index: 3;
    padding: 12px 16px;
    color: #ffffff;
    background: linear-gradient(135deg, #e73e48, #b91f2d);
    border: 3px solid rgba(255, 255, 255, .94);
    border-radius: 12px;
    box-shadow: 0 12px 28px rgba(185, 31, 45, .2);
}

.pv1f-photo-badge strong {
    display: block;
    font-size: 22px;
    line-height: 1.1;
}

.pv1f-photo-badge span {
    font-size: 10px;
    letter-spacing: 1px;
    text-transform: uppercase;
}

/* QUICK DATA */

.pv1f-quick {
    position: relative;
    z-index: 4;
    margin-top: -36px;
}

.pv1f-quick-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    overflow: hidden;
    background: #ffffff;
    border: 1px solid var(--pv1f-border);
    border-radius: 15px;
    box-shadow: 0 20px 48px rgba(6, 59, 115, .11);
}

.pv1f-quick-item {
    position: relative;
    padding: 27px 18px;
    text-align: center;
}

.pv1f-quick-item:not(:last-child)::after {
    position: absolute;
    top: 25%;
    right: 0;
    width: 1px;
    height: 50%;
    content: "";
    background: var(--pv1f-border);
}

.pv1f-quick-icon {
    display: grid;
    width: 68px;
    height: 53px;
    margin: 0 auto 12px;
    place-items: center;
    color: var(--pv1f-orange-dark);
    font-size: 13px;
    font-weight: 800;
    background: #fff1e7;
    border-radius: 14px;
}

.pv1f-quick-item strong {
    display: block;
    margin-bottom: 3px;
    color: var(--pv1f-navy);
    font-size: 17px;
}

.pv1f-quick-item span {
    color: var(--pv1f-gray);
    font-size: 13px;
}

/* FEATURE CARDS */

.pv1f-feature-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 18px;
}

.pv1f-feature-card {
    padding: 29px 23px;
    background: #ffffff;
    border: 1px solid var(--pv1f-border);
    border-radius: 13px;
    box-shadow: 0 12px 32px rgba(6, 59, 115, .06);
}

.pv1f-feature-icon {
    display: grid;
    width: 50px;
    height: 50px;
    margin-bottom: 18px;
    place-items: center;
    color: #ffffff;
    font-size: 14px;
    font-weight: 800;
    background: linear-gradient(135deg, #f38b3d, #d6550c);
    border-radius: 12px;
}

.pv1f-feature-card h3 {
    margin: 0 0 9px;
    color: var(--pv1f-navy);
    font-size: 19px;
}

.pv1f-feature-card p {
    margin: 0;
    color: var(--pv1f-gray);
    font-size: 14px;
}

/* GALLERY */

.pv1f-gallery {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 22px;
}

.pv1f-gallery-card {
    overflow: hidden;
    background: #ffffff;
    border: 1px solid var(--pv1f-border);
    border-radius: 16px;
    box-shadow: 0 15px 38px rgba(6, 59, 115, .08);
}

.pv1f-gallery-card img {
    aspect-ratio: 1 / 1;
    object-fit: contain;
    background: #ffffff;
}

.pv1f-gallery-content {
    padding: 21px 22px;
    border-top: 1px solid var(--pv1f-border);
}

.pv1f-gallery-content h3 {
    margin: 0 0 7px;
    color: var(--pv1f-blue-dark);
    font-size: 19px;
}

.pv1f-gallery-content p {
    margin: 0;
    color: var(--pv1f-gray);
    font-size: 14px;
}

/* CONSTRUCTION */

.pv1f-construction {
    display: grid;
    grid-template-columns: .95fr 1.05fr;
    gap: 58px;
    align-items: center;
}

.pv1f-photo-card {
    padding: 20px;
    background: #ffffff;
    border: 1px solid var(--pv1f-border);
    border-radius: 18px;
    box-shadow: 0 20px 48px rgba(6, 59, 115, .1);
}

.pv1f-photo-card img {
    aspect-ratio: 1 / 1;
    object-fit: contain;
    background: #ffffff;
    border-radius: 12px;
}

.pv1f-photo-caption {
    padding: 17px 5px 2px;
    text-align: center;
}

.pv1f-photo-caption strong {
    display: block;
    margin-bottom: 3px;
    color: var(--pv1f-blue-dark);
    font-size: 18px;
}

.pv1f-photo-caption span {
    color: var(--pv1f-gray);
    font-size: 13px;
}

.pv1f-structure-list {
    display: grid;
    gap: 14px;
}

.pv1f-structure-item {
    display: grid;
    grid-template-columns: 47px 1fr;
    gap: 15px;
    padding: 19px;
    align-items: start;
    background: #ffffff;
    border: 1px solid var(--pv1f-border);
    border-radius: 11px;
}

.pv1f-structure-number {
    display: grid;
    width: 42px;
    height: 42px;
    place-items: center;
    color: #ffffff;
    font-weight: 800;
    background: linear-gradient(135deg, #1681d0, #07539b);
    border-radius: 10px;
}

.pv1f-structure-item h3 {
    margin: 0 0 4px;
    color: var(--pv1f-blue-dark);
    font-size: 17px;
}

.pv1f-structure-item p {
    margin: 0;
    color: var(--pv1f-gray);
    font-size: 14px;
}

/* OVERVIEW */

.pv1f-overview-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 17px;
}

.pv1f-overview-card {
    padding: 24px;
    background: #ffffff;
    border: 1px solid var(--pv1f-border);
    border-radius: 12px;
    box-shadow: 0 11px 30px rgba(6, 59, 115, .055);
}

.pv1f-overview-card strong {
    display: block;
    margin-bottom: 6px;
    color: var(--pv1f-blue-dark);
    font-size: 16px;
}

.pv1f-overview-card span {
    color: var(--pv1f-gray);
    font-size: 14px;
}

/* TABLE */

.pv1f-table-wrap {
    overflow-x: auto;
    background: #ffffff;
    border: 1px solid var(--pv1f-border);
    border-radius: 12px;
    box-shadow: 0 15px 38px rgba(6, 59, 115, .07);
}

.pv1f-table {
    width: 100%;
    min-width: 960px;
    border-collapse: collapse;
}

.pv1f-table th,
.pv1f-table td {
    padding: 13px 10px;
    text-align: center;
    vertical-align: middle;
    border-right: 1px solid #d8e2eb;
    border-bottom: 1px solid #d8e2eb;
}

.pv1f-table th {
    color: #ffffff;
    font-size: 13px;
    font-weight: 800;
    background: var(--pv1f-blue-dark);
}

.pv1f-table td {
    color: #38495d;
    font-size: 13px;
}

.pv1f-table tr:nth-child(even) td {
    background: #f6f9fc;
}

.pv1f-table tr:last-child td {
    border-bottom: 0;
}

.pv1f-table th:last-child,
.pv1f-table td:last-child {
    border-right: 0;
}

.pv1f-note {
    padding: 15px 18px;
    margin-top: 17px;
    color: #596a80;
    font-size: 13px;
    background: #edf5fb;
    border-left: 4px solid var(--pv1f-blue);
    border-radius: 4px;
}

/* APPLICATIONS */

.pv1f-app-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 17px;
}

.pv1f-app-card {
    min-height: 218px;
    padding: 26px;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    color: #ffffff;
    background: linear-gradient(145deg, #e56a1b, #a93213);
    border-radius: 13px;
}

.pv1f-app-card:nth-child(even) {
    background: linear-gradient(145deg, #1378bd, #063b73);
}

.pv1f-app-card h3 {
    margin: 0 0 8px;
    color: #ffffff;
    font-size: 19px;
}

.pv1f-app-card p {
    margin: 0;
    color: rgba(255, 255, 255, .83);
    font-size: 14px;
}

/* OEM */

.pv1f-oem {
    display: grid;
    grid-template-columns: 1.08fr .92fr;
    overflow: hidden;
    background: linear-gradient(135deg, #063b73, #0877bd);
    border-radius: 20px;
    box-shadow: 0 24px 60px rgba(6, 59, 115, .2);
}

.pv1f-oem-info {
    padding: 50px;
    color: #ffffff;
}

.pv1f-oem-info h2 {
    margin: 0 0 14px;
    color: #ffffff;
    font-size: 34px;
    line-height: 1.2;
}

.pv1f-oem-info p {
    margin: 0 0 23px;
    color: rgba(255, 255, 255, .82);
}

.pv1f-oem-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px 18px;
    padding: 0;
    margin: 0;
    list-style: none;
}

.pv1f-oem-list li {
    position: relative;
    padding-left: 21px;
    font-size: 14px;
}

.pv1f-oem-list li::before {
    position: absolute;
    left: 0;
    content: "✓";
    color: #aee1ff;
    font-weight: 800;
}

.pv1f-oem-side {
    display: grid;
    padding: 40px;
    place-items: center;
    background: #ffffff;
}

.pv1f-oem-card {
    width: 100%;
    padding: 32px;
    text-align: center;
    background: #f5f9fc;
    border: 1px solid var(--pv1f-border);
    border-radius: 14px;
}

.pv1f-oem-card strong {
    display: block;
    margin-bottom: 9.pv1f-oem-card strong {
    display: block;
    margin-bottom: 9px;
    color: var(--pv1f-blue-dark);
    font-size: 24px;
}

.pv1f-oem-card p {
    margin: 0 0 21px;
    color: var(--pv1f-gray);
    font-size: 14px;
}

/* FAQ */

.pv1f-faq {
    max-width: 900px;
    margin: 0 auto;
}

.pv1f-faq details {
    margin-bottom: 11px;
    overflow: hidden;
    background: #ffffff;
    border: 1px solid var(--pv1f-border);
    border-radius: 9px;
}

.pv1f-faq summary {
    position: relative;
    padding: 20px 56px 20px 22px;
    color: var(--pv1f-navy);
    font-size: 16px;
    font-weight: 800;
    cursor: pointer;
    list-style: none;
}

.pv1f-faq summary::-webkit-details-marker {
    display: none;
}

.pv1f-faq summary::after {
    position: absolute;
    top: 50%;
    right: 22px;
    content: "+";
    color: var(--pv1f-orange-dark);
    font-size: 24px;
    transform: translateY(-50%);
}

.pv1f-faq details[open] summary::after {
    content: "−";
}

.pv1f-faq-answer {
    padding: 0 22px 20px;
    color: var(--pv1f-gray);
    font-size: 15px;
}

/* FINAL CTA */

.pv1f-final {
    padding: 70px 0;
    text-align: center;
    background:
        radial-gradient(
            circle at 15% 25%,
            rgba(255, 141, 62, .38),
            transparent 27%
        ),
        linear-gradient(
            135deg,
            #052d59,
            #0867ac
        );
}

.pv1f-final h2 {
    margin: 0 0 14px;
    color: #ffffff;
    font-size: 38px;
    line-height: 1.2;
}

.pv1f-final p {
    max-width: 760px;
    margin: 0 auto 27px;
    color: rgba(255, 255, 255, .82);
    font-size: 17px;
}

.pv1f-final .pv1f-btn {
    color: var(--pv1f-blue-dark) !important;
    background: #ffffff;
    border-color: #ffffff;
    box-shadow: 0 14px 34px rgba(0, 25, 55, .22);
}

/* RESPONSIVE */

@media (max-width: 1050px) {
    .pv1f-hero-grid,
    .pv1f-construction {
        grid-template-columns: 1fr;
    }

    .pv1f-hero-photo,
    .pv1f-photo-card {
        width: 100%;
        max-width: 700px;
        margin: 0 auto;
    }

    .pv1f-feature-grid,
    .pv1f-app-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .pv1f-oem {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 760px) {
    .pv1f-container {
        width: min(100% - 28px, 1200px);
    }

    .pv1f-section {
        padding: 56px 0;
    }

    .pv1f-hero {
        padding: 55px 0 68px;
    }

    .pv1f-main-title {
        font-size: 38px;
    }

    .pv1f-points,
    .pv1f-gallery {
        grid-template-columns: 1fr;
    }

    .pv1f-quick-grid,
    .pv1f-overview-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .pv1f-heading h2,
    .pv1f-oem-info h2,
    .pv1f-final h2 {
        font-size: 29px;
    }

    .pv1f-oem-info,
    .pv1f-oem-side {
        padding: 32px 23px;
    }
}

@media (max-width: 520px) {
    .pv1f-main-title {
        font-size: 31px;
    }

    .pv1f-intro {
        font-size: 16px;
    }

    .pv1f-actions {
        flex-direction: column;
    }

    .pv1f-btn {
        width: 100%;
    }

    .pv1f-photo-badge {
        top: 28px;
        left: 28px;
    }

    .pv1f-quick {
        margin-top: -23px;
    }

    .pv1f-quick-grid,
    .pv1f-feature-grid,
    .pv1f-overview-grid,
    .pv1f-app-grid,
    .pv1f-oem-list {
        grid-template-columns: 1fr;
    }

    .pv1f-quick-item:not(:last-child)::after {
        top: auto;
        right: 15%;
        bottom: 0;
        width: 70%;
        height: 1px;
    }
}