/* Solution Page — Energy Management 等 */
.solution-page {
    --sol-navy: #1a2b4c;
    --sol-navy-dark: #7f1d1d;
    --sol-teal: #7f1d1d;
    --sol-teal-light: #b91c1c;
    --sol-green: #cc0000;
    --sol-btn: #cc0000;
    --sol-btn-hover: #a30000;
    --ss-btn: #cc0000;
    --ss-btn-hover: #a30000;
    --sol-grey: #f5f6f8;
    --sol-green-bg: #ffe4e4;
    --sol-red-pale: #ffe4e4;
    --sol-hero-overlay: 0;
}

.solution-page.service-support-page {
    --ss-navy: #1a2b4c;
}

.solution-page .sol-container {
    width: 100%;
    max-width: 1440px;
    margin-left: auto;
    margin-right: auto;
    padding-left: 1rem;
    padding-right: 1rem;
}

@media (min-width: 768px) {
    .solution-page .sol-container {
        padding-left: 2rem;
        padding-right: 2rem;
    }
}

.solution-page .sol-btn {
    display: inline-block;
    padding: 0.65rem 2rem;
    border-radius: 999px;
    background: var(--sol-btn);
    color: #fff;
    font-size: 0.9375rem;
    font-weight: 600;
    text-decoration: none;
    transition: background-color 0.25s ease;
}

.solution-page .sol-btn:hover,
.solution-page .sol-btn:focus {
    background: var(--sol-btn-hover);
    color: #fff;
}

/* Hero */
.solution-page .sol-hero {
    position: relative;
    min-height: 280px;
    display: flex;
    align-items: center;
    background-color: #cc0000;
    background-image: linear-gradient(90deg, #cc0000 0%, #d93636 30%, #f5b4b4 65%, #fff5f5 100%);
    background-size: cover;
    background-position: center;
    color: #fff;
    overflow: hidden;
}

@media (min-width: 768px) {
    .solution-page .sol-hero {
        min-height: 320px;
    }
}

.solution-page .sol-hero__bg {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: 0;
}

.solution-page .sol-hero__overlay {
    position: absolute;
    inset: 0;
    background: transparent;
    z-index: 1;
}

.solution-page .sol-hero__pattern {
    display: none;
}

.solution-page .sol-hero__inner {
    position: relative;
    z-index: 3;
    padding: 3.5rem 0;
    width: 100%;
}

.solution-page .sol-hero__grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    align-items: center;
}

@media (min-width: 992px) {
    .solution-page .sol-hero__grid {
        grid-template-columns: 1fr auto;
        gap: 3rem;
    }
}

.solution-page .sol-hero__title {
    margin: 0;
    font-size: clamp(2.25rem, 5vw, 3.25rem);
    line-height: 1.15;
    font-weight: 700;
}

.solution-page .sol-hero__icon img {
    display: block;
    max-width: 160px;
    max-height: 160px;
    width: auto;
    height: auto;
    margin: 0 auto;
}

@media (min-width: 992px) {
    .solution-page .sol-hero__icon img {
        max-width: 200px;
        max-height: 200px;
        margin: 0;
    }
}

/* Body: intro + cards（同一白色区块，对齐参考图） */
.solution-page .sol-body {
    padding: 2rem 0 3.5rem;
    background: #fff;
}

.solution-page .sol-intro__head {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 1rem 1.5rem;
    margin-bottom: 1.5rem;
}

.solution-page .sol-intro__title {
    margin: 0;
    font-size: clamp(1.75rem, 3vw, 2.25rem);
    color: var(--sol-navy);
    font-weight: 700;
}

.solution-page .sol-intro__content {
    color: #4a5568;
    font-size: 1rem;
    line-height: 1.75;
    margin-bottom: 2.5rem;
    max-width: 960px;
}

.solution-page .sol-intro__content p {
    margin: 0 0 1rem;
}

.solution-page .sol-intro__content p:last-child {
    margin-bottom: 0;
}

/* Solutions landing — category image grid */
.solution-page .sol-cat-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.25rem;
}

@media (min-width: 768px) {
    .solution-page .sol-cat-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 1.5rem;
    }
}

@media (min-width: 992px) {
    .solution-page .sol-cat-grid {
        grid-template-columns: repeat(3, minmax(0, 1fr));
        gap: 1.75rem;
    }
}

.solution-page .sol-cat-card {
    position: relative;
    display: block;
    aspect-ratio: 16 / 10;
    overflow: hidden;
    border-radius: 2px;
    text-decoration: none;
    background: #cc0000;
}

.solution-page .sol-cat-card__img,
.solution-page .sol-cat-card__placeholder {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.solution-page .sol-cat-card__placeholder {
    background: linear-gradient(135deg, #7f1d1d 0%, #b91c1c 100%);
}

.solution-page .sol-cat-card__img {
    transition: transform 0.35s ease;
}

.solution-page .sol-cat-card__bar {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    padding: 0.85rem 1rem;
    background: rgba(15, 23, 42, 0.78);
    color: #fff;
    font-size: 1rem;
    font-weight: 700;
    line-height: 1.3;
}

.solution-page .sol-cat-card:hover .sol-cat-card__img {
    transform: scale(1.03);
}

/* Carbon Reduction Plan */
.solution-page .sol-carbon {
    padding: 3rem 0 3.5rem;
    background: #fff;
}

.solution-page .sol-carbon__box {
    background: #fff1f2;
    border-radius: 8px;
    padding: 2rem 1.5rem;
}

@media (min-width: 768px) {
    .solution-page .sol-carbon__box {
        padding: 2.5rem 2.5rem;
    }
}

.solution-page .sol-carbon__grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    align-items: center;
}

@media (min-width: 992px) {
    .solution-page .sol-carbon__grid {
        grid-template-columns: 1.2fr 0.8fr;
    }
}

.solution-page .sol-carbon__heading {
    margin: 0 0 1.25rem;
    font-family: 'MontserratMedium', sans-serif;
    font-size: 30px;
    font-weight: 700;
    color: #1e293b;
    line-height: 38px;
}

@media (min-width: 768px) {
    .solution-page .sol-carbon__heading {
        font-size: 44px;
        line-height: 52px;
    }
}

.solution-page .sol-carbon__heading strong {
    color: var(--sol-green);
    font-weight: 700;
}

.solution-page .sol-carbon__text {
    color: #4a5568;
    font-size: 0.9375rem;
    line-height: 1.7;
}

.solution-page .sol-carbon__logo img {
    display: block;
    width: auto;
    max-width: 150px;
    height: auto;
    margin: 0 auto;
}

.solution-page .sol-carbon__btn {
    margin-top: 0.5rem;
}

/* Cards（紧跟介绍正文下方） */
.solution-page .sol-cards__grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
}

@media (min-width: 768px) {
    .solution-page .sol-cards__grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 992px) {
    .solution-page .sol-cards__grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 1.75rem;
    }
}

.solution-page .sol-card {
    background: var(--sol-grey);
    border-radius: 4px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.solution-page .sol-card__media img {
    display: block;
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.solution-page .sol-card__body {
    padding: 1.5rem;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.solution-page .sol-card__title {
    margin: 0 0 0.75rem;
    font-size: 1.125rem;
    color: var(--sol-green);
    font-weight: 700;
}

.solution-page .sol-card__desc {
    margin: 0 0 1.25rem;
    color: #4a5568;
    font-size: 0.9375rem;
    line-height: 1.65;
    flex: 1;
}

.solution-page .sol-card__link {
    color: var(--sol-btn);
    font-size: 0.9375rem;
    font-weight: 600;
    text-decoration: none;
    margin-top: auto;
}

.solution-page .sol-card__link:hover {
    color: var(--sol-btn-hover);
}

/* Testimonials */
.solution-page .sol-testimonials {
    padding: 3.5rem 0;
    background: var(--sol-green-bg);
}

.solution-page .sol-testimonials__heading {
    display: flex;
    align-items: center;
    gap: 1.25rem;
    margin-bottom: 2.5rem;
}

.solution-page .sol-testimonials__line {
    flex: 1;
    height: 1px;
    background: #cbd5e1;
}

.solution-page .sol-testimonials__title {
    margin: 0;
    font-size: clamp(1.25rem, 2.5vw, 1.5rem);
    color: var(--sol-navy);
    font-weight: 700;
    white-space: nowrap;
}

.solution-page .sol-testimonials__slider {
    overflow: hidden;
}

.solution-page .sol-testimonials__slider .swiper-wrapper {
    align-items: stretch;
}

.solution-page .sol-testimonials__slider .swiper-slide {
    height: auto;
    display: flex;
}

.solution-page .sol-testimonial {
    margin: 0;
    padding: 0;
    text-align: left;
    width: 100%;
    height: 100%;
}

.solution-page .sol-testimonial__quote {
    margin: 0 0 1.25rem;
    color: #4a5568;
    font-size: 0.9375rem;
    line-height: 1.65;
    font-style: italic;
}

.solution-page .sol-testimonial__footer {
    display: flex;
    align-items: center;
    gap: 0.875rem;
}

.solution-page .sol-testimonial__icon {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
}

.solution-page .sol-testimonial__icon img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.solution-page .sol-testimonial__meta {
    display: flex;
    flex-direction: column;
    gap: 0.15rem;
    font-style: normal;
    color: var(--sol-navy);
    text-align: left;
}

.solution-page .sol-testimonial__name {
    font-style: normal;
    font-weight: 700;
    font-size: 0.9375rem;
}

.solution-page .sol-testimonial__role {
    font-size: 0.8125rem;
    color: #64748b;
}

/* Solutions archive */
.solution-page.solution-archive,
.solution-page .solution-archive__inner {
    padding-top: 3rem;
    padding-bottom: 4rem;
}

.solution-page .solution-archive__title {
    margin: 0 0 2rem;
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    color: var(--sol-navy, #1a2b4c);
}

.solution-page .solution-archive__eyebrow {
    margin: 0 0 0.75rem;
    font-size: 0.875rem;
    color: #64748b;
}

.solution-page .solution-archive__eyebrow a {
    color: inherit;
    text-decoration: none;
}

.solution-page .solution-archive__eyebrow a:hover {
    color: var(--sol-btn, #cc0000);
}

.solution-page .solution-archive__filters {
    margin-bottom: 2rem;
}

.solution-page .solution-archive__filter-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin: 0;
    padding: 0;
    list-style: none;
}

.solution-page .solution-archive__filter-link {
    display: inline-flex;
    align-items: center;
    width: 100%;
    padding: 0.75rem 1rem;
    border: none;
    border-radius: 6px;
    background: transparent;
    color: var(--sol-navy, #1a2b4c);
    font-size: 0.9375rem;
    font-weight: 600;
    text-decoration: none;
    transition: background-color 0.2s ease, color 0.2s ease;
}

.solution-page .solution-archive__filter-link:hover,
.solution-page .solution-archive__filter-link.is-active {
    border-color: var(--sol-teal, #7f1d1d);
    background: var(--sol-red-pale, #ffe4e4);
    color: var(--sol-navy, #1a2b4c);
}

.solution-page .solution-archive__filter-link.is-active {
    font-weight: 700;
}

.solution-page .solution-archive__grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
}

@media (min-width: 768px) {
    .solution-page .solution-archive__grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (min-width: 1024px) {
    .solution-page .solution-archive__grid {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }
}

.solution-page .solution-archive__card {
    border: 1px solid #e2e8f0;
    border-radius: 12px;
    overflow: hidden;
    background: #fff;
}

.solution-page .solution-archive__card-link {
    display: block;
    color: inherit;
    text-decoration: none;
}

.solution-page .solution-archive__card-media {
    aspect-ratio: 16 / 10;
    overflow: hidden;
    background: #f1f5f9;
}

.solution-page .solution-archive__card-media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.solution-page .solution-archive__card-body {
    padding: 1.25rem;
}

.solution-page .solution-archive__card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 0.75rem;
}

.solution-page .solution-archive__card-tag {
    display: inline-block;
    padding: 0.2rem 0.65rem;
    border-radius: 999px;
    background: var(--sol-green-bg, #ffe4e4);
    color: var(--sol-teal, #7f1d1d);
    font-size: 0.75rem;
    font-weight: 600;
}

.solution-page .solution-archive__card-title {
    margin: 0 0 0.75rem;
    font-size: 1.125rem;
    color: var(--sol-navy, #1a2b4c);
}

.solution-page .solution-archive__card-excerpt {
    margin: 0 0 1rem;
    font-size: 0.9375rem;
    line-height: 1.6;
    color: #475569;
}

.solution-page .solution-archive__card-more {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--sol-btn, #cc0000);
}

.solution-page .solution-archive__empty {
    color: #64748b;
}

/* Solutions landing — Energy Group 参考布局 */
.solution-page.solution-landing .sol-container {
    max-width: 1440px;
}

@media (min-width: 768px) {
    .solution-page.solution-landing .sol-container {
        padding-left: 2rem;
        padding-right: 2rem;
    }
}

.solution-page.solution-landing .sol-hero {
    min-height: 300px;
}

@media (min-width: 992px) {
    .solution-page.solution-landing .sol-hero {
        min-height: 360px;
    }

    .solution-page.solution-landing .sol-hero__pattern {
        width: 50%;
    }
}

.solution-page.solution-landing .sol-body {
    padding: 2.5rem 0 4rem;
}

.solution-page.solution-landing .sol-intro__head {
    align-items: flex-start;
    gap: 1.5rem 2rem;
    margin-bottom: 1.75rem;
}

.solution-page.solution-landing .sol-intro__title {
    flex: 1 1 420px;
    max-width: none;
    font-size: clamp(1.875rem, 3.2vw, 2.375rem);
    line-height: 1.25;
}

.solution-page.solution-landing .sol-intro__btn {
    flex-shrink: 0;
    margin-top: 0.35rem;
}

.solution-page.solution-landing .sol-intro__content {
    max-width: none;
    margin-bottom: 3rem;
}

.solution-page.solution-landing .sol-cat-card {
    aspect-ratio: 16 / 11;
    border-radius: 0;
}

.solution-page.solution-landing .sol-cat-card__bar {
    padding: 1rem 1.25rem;
    font-size: 1.0625rem;
}

.solution-page.solution-landing .sol-carbon {
    padding: 4rem 0;
}

.solution-page.solution-landing .sol-carbon__box {
    padding: 2.75rem 2rem;
    border-radius: 6px;
}

@media (min-width: 992px) {
    .solution-page.solution-landing .sol-carbon__box {
        padding: 3rem 3.5rem;
    }
}

.solution-page.solution-landing .sol-carbon__content {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.solution-page.solution-landing .sol-carbon__btn {
    margin-top: 1.5rem;
}

.solution-page.solution-landing .sol-carbon__logo {
    display: flex;
    align-items: center;
    justify-content: center;
}

@media (min-width: 992px) {
    .solution-page.solution-landing .sol-carbon__grid {
        grid-template-columns: 1.35fr 0.65fr;
    }

    .solution-page.solution-landing .sol-carbon__logo {
        justify-content: center;
        padding-right: 0;
        padding-left: 1rem;
    }

    .solution-page.solution-landing .sol-carbon__logo img {
        max-width: 180px;
        margin: 0;
    }
}

.solution-page .sol-intro__content table {
    width: 100%;
    border-collapse: collapse;
    margin: 1.5rem 0;
}

.solution-page .sol-intro__content table th,
.solution-page .sol-intro__content table td {
    padding: 0.75rem 1rem;
    border: 1px solid #e2e8f0;
    text-align: left;
    vertical-align: top;
}

.solution-page .sol-intro__content table th {
    background: var(--sol-green-bg);
    color: var(--sol-navy);
    font-weight: 600;
}

/* Solution 分类页 — DC Systems 布局 */
.solution-page.solution-category-page .sol-container {
    max-width: 1440px;
}

@media (min-width: 768px) {
    .solution-page.solution-category-page .sol-container {
        padding-left: 2rem;
        padding-right: 2rem;
    }
}

.solution-page.solution-category-page .sol-body {
    padding: 2.5rem 0 4rem;
}

.solution-page.solution-category-page .sol-intro__head--category {
    display: flex;
    flex-wrap: wrap;
    align-items: flex-start;
    justify-content: space-between;
    gap: 1rem 2rem;
    margin-bottom: 1.25rem;
}

.solution-page.solution-category-page .sol-intro__head--category .sol-intro__title {
    flex: 1 1 280px;
    margin: 0;
    font-size: clamp(1.75rem, 3vw, 2.25rem);
}

.solution-page.solution-category-page .sol-filter-link {
    flex-shrink: 0;
    color: var(--sol-btn);
    font-size: 0.9375rem;
    font-weight: 600;
    text-decoration: none;
    white-space: nowrap;
}

.solution-page.solution-category-page .sol-filter-link:hover {
    color: var(--sol-btn-hover);
    text-decoration: underline;
}

.solution-page.solution-category-page .sol-intro__content {
    max-width: none;
    margin-bottom: 2.5rem;
}

.solution-page.solution-category-page .sol-product-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
}

@media (min-width: 768px) {
    .solution-page.solution-category-page .sol-product-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 1.75rem;
    }
}

@media (min-width: 992px) {
    .solution-page.solution-category-page .sol-product-grid {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }
}

.solution-page.solution-category-page .sol-product-card {
    display: block;
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 4px 18px rgba(15, 23, 42, 0.08);
    overflow: hidden;
    text-decoration: none;
    color: inherit;
    transition: box-shadow 0.25s ease, transform 0.25s ease;
}

.solution-page.solution-category-page .sol-product-card:hover {
    box-shadow: 0 8px 28px rgba(15, 23, 42, 0.12);
    transform: translateY(-2px);
}

.solution-page.solution-category-page .sol-product-card__media {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 220px;
    padding: 1.75rem 1.5rem 1rem;
    background: #fff;
}

.solution-page.solution-category-page .sol-product-card__media img {
    display: block;
    max-width: 100%;
    max-height: 180px;
    width: auto;
    height: auto;
    object-fit: contain;
}

.solution-page.solution-category-page .sol-product-card__title {
    margin: 0;
    padding: 0.75rem 1.25rem 1.5rem;
    text-align: center;
    font-size: 1.0625rem;
    font-weight: 700;
    color: var(--sol-navy);
    line-height: 1.35;
}