/* ═══════════════════════════════════════════════════
   Case Study Detail Page — 100% 还原参考站
   断点: 1200 / 1024 / 576
   ═══════════════════════════════════════════════════ */

/* ── Hero Section ── */
.cs-detail-hero > .fl-row-content-wrap {
    background-color: #f4f4f4;
    padding-top: 200px;
    padding-bottom: 80px;
}
.cs-detail-hero-inner {
    display: flex;
    align-items: flex-start;
    gap: 60px;
    max-width: 1140px;
    margin: 0 auto;
}
.cs-detail-hero-text {
    flex: 1;
    min-width: 0;
}
.cs-detail-hero-image {
    flex: 0 0 40%;
    max-width: 40%;
}
.cs-detail-hero-image .cs-hero-img {
    width: 100%;
    height: auto;
    display: block;
    border-top-right-radius: 40px;
    border-bottom-left-radius: 40px;
    object-fit: cover;
}

.cs-detail-eyebrow {
    text-transform: uppercase;
    font-family: "PolySans-SlimMono", monospace, sans-serif;
    font-size: 12px;
    line-height: 24px;
    letter-spacing: 1.2px;
    color: #ff6d45;
    font-weight: 400;
    margin: 0 0 16px;
    padding-left: 16px;
    border-left: 2px solid #ff6d45;
}
.cs-detail-title {
    font-family: "PolySans-Median", sans-serif;
    font-size: 44px;
    line-height: 52px;
    font-weight: 400;
    color: #272f31;
    margin: 0 0 24px;
}
.cs-detail-excerpt {
    font-family: "PolySans-Slim", sans-serif;
    font-size: 18px;
    line-height: 30px;
    letter-spacing: .72px;
    color: #323d3f;
    margin: 0;
}

/* ── Client Info Section ── */
.cs-detail-client-row > .fl-row-content-wrap {
    padding: 60px 0;
    border-bottom: 1px solid #e5e5e5;
}
.cs-detail-client-row .fl-row-content {
    max-width: 1140px;
}
.cs-client-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}
.cs-client-col .client-info { padding: 0; }
.client-info-logo {
    min-height: 63px;
    margin-bottom: 16px;
}
.client-info-logo img {
    width: 100%;
    height: 40px;
    object-fit: contain;
    object-position: left;
}
.client-info p strong,
.client-info-wrapper p strong {
    font-family: "PolySans-Median", sans-serif;
    font-size: 14px;
    line-height: 1.71;
    letter-spacing: .56px;
    display: block;
    margin-bottom: 4px;
}
.client-info p,
.client-info-wrapper p {
    font-family: "PolySans-Slim", sans-serif;
    font-size: 14px;
    line-height: 1.71;
    letter-spacing: .56px;
    color: #272f31;
    margin: 0 0 4px;
}
.client-info-container {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
}
.client-info-container .client-info-wrapper { width: 100%; }
.client-info-container .client-info-wrapper .content svg,
.client-info-container .client-info-wrapper .content img {
    margin-bottom: 24px;
    display: block;
}

/* ── Article Body ── */
.cs-detail-body-row > .fl-row-content-wrap {
    padding-top: 80px;
    padding-bottom: 40px;
}
.case-study-content {
    max-width: 760px !important;
    margin: 0 auto;
}
.case-study-content .inner-body-text p {
    font-family: "PolySans-Slim", sans-serif;
    font-size: 18px;
    letter-spacing: .72px;
    line-height: 1.67;
    margin-bottom: 32px;
    color: #272f31;
}
.case-study-content .inner-body-text h2 {
    font-family: "PolySans-Median", sans-serif;
    font-size: 32px;
    color: #272f31;
    line-height: 1.25;
    letter-spacing: 0;
    font-weight: 400;
    margin: 48px 0 24px;
}
.case-study-content .inner-body-text h3 {
    font-family: "PolySans-Median", sans-serif;
    font-size: 24px;
    color: #272f31;
    line-height: 1.35;
    letter-spacing: 0;
    font-weight: 400;
    margin: 36px 0 16px;
}
.case-study-content .inner-body-text ul {
    padding-left: 20px;
    margin-bottom: 32px;
    list-style: none;
}
.case-study-content .inner-body-text ul li {
    font-family: "PolySans-Slim", sans-serif;
    font-size: 18px;
    line-height: 1.67;
    letter-spacing: .72px;
    color: #272f31;
    margin-bottom: 24px;
    padding-left: 30px;
    position: relative;
}
.case-study-content .inner-body-text ul li:before {
    content: "\2022";
    color: #FF6D45;
    position: absolute;
    margin-left: -30px;
}
.case-study-content .inner-body-text a {
    color: #f36139;
    text-decoration: none;
}
.case-study-content .inner-body-text a:hover {
    text-decoration: underline;
}
.case-study-content .inner-body-text img {
    max-width: 100%;
    height: auto;
    margin: 24px 0;
    border-radius: 4px;
}
.case-study-content .inner-body-text blockquote {
    border-top: 4px solid #272f31;
    border-bottom: 4px solid #272f31;
    padding: 2em 0;
    margin: 2em 0;
    text-align: center;
    font-size: 20px;
    line-height: 1.6;
    color: #272f31;
    font-family: "PolySans-Median", sans-serif;
    font-style: normal;
}
.case-study-content .inner-body-text blockquote p {
    font-family: "PolySans-Median", sans-serif;
    font-size: 20px;
    font-style: normal;
}
.case-study-content .inner-body-text blockquote cite {
    display: block;
    margin-top: 16px;
    font-size: 14px;
    font-style: normal;
    color: #676d6e;
}

/* ── Share + Back to top ── */
.cs-detail-share-row > .fl-row-content-wrap {
    padding-top: 30px;
    padding-bottom: 30px;
}
.cs-detail-share-row .fl-row-content {
    max-width: 760px;
}
.cs-detail-share-row .fl-separator {
    border-top: 1px solid #ccc;
    margin: 0 0 24px;
}
.cs-share-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.SocialShare {
    display: flex;
    align-items: center;
}
.SocialShare-label {
    font-family: "PolySans-Median", sans-serif;
    font-size: 18px;
    font-weight: 700;
    letter-spacing: .72px;
    line-height: 30px;
    margin: 0 10px 0 0;
    color: #272f31;
}
.SocialShare-icons { display: flex; }
.SocialShare-icons--icon { margin: 0 7px; }
.SocialShare-icons--icon a {
    line-height: 31px;
    width: 31px; height: 31px;
    border-radius: 100%;
    text-align: center;
    background-color: #ff6d45;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    color: #fff;
    transition: background-color .2s;
}
.SocialShare-icons--icon a:hover { background-color: #272f31; }
.SocialShare-icons--icon a svg {
    width: 14px; height: 14px;
    fill: #fff; color: #fff;
}
.cs-back-to-top {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-family: "PolySans-SlimMono", monospace, sans-serif;
    font-size: 12px;
    letter-spacing: 1.2px;
    text-transform: uppercase;
    color: #272f31;
    text-decoration: none;
    transition: color .2s;
}
.cs-back-to-top:hover { color: #ff6d45; }

/* ── CTA Section ── */
.cs-detail-cta-row > .fl-row-content-wrap {
    background-color: #333D3F;
    padding: 40px;
    margin-top: 80px;
}
.cs-cta-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 60px;
    max-width: 1140px;
    margin: 0 auto;
}
.cs-cta-text { flex: 1; }
.cs-cta-text h2 {
    font-family: "PolySans-Median", sans-serif;
    font-size: 25px;
    font-weight: 400;
    color: #fff;
    margin: 0;
    line-height: 1.3;
}
.cs-cta-text p {
    font-size: 16px;
    color: rgba(255,255,255,.8);
    margin: 8px 0 0;
    line-height: 1.6;
}
.cs-cta-btn { flex-shrink: 0; }
.cs-cta-btn a {
    display: inline-block;
    background: transparent;
    color: #fff;
    font-family: "PolySans-NeutralMono", sans-serif;
    font-size: 12px;
    font-weight: 400;
    padding: 12px 34px;
    text-decoration: none;
    text-transform: uppercase;
    letter-spacing: 2.5px;
    line-height: 2;
    border: 1px solid #fff;
    transition: all .3s;
}
.cs-cta-btn a:hover {
    background-color: #ff6d45;
    border-color: #ff6d45;
    color: #272F31;
}

/* ── Related Resources — Slick Slider ── */
.cs-detail-related-row > .fl-row-content-wrap {
    margin-top: 0;
    padding-bottom: 154px;
}
.cs-detail-related-row .fl-row-content {
    max-width: 1180px;
}
.cs-detail-related-row .RelatedResources-Wrapper {
    margin-top: 64px;
}
.cs-detail-related-row .RelatedResources-Wrapper__Heading {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-bottom: 64px;
}
.cs-detail-related-row .RelatedResources-Wrapper__Heading .heading span {
    font-family: "PolySans-SlimMono", monospace, sans-serif;
    font-size: 12px;
    line-height: 24px;
    letter-spacing: 1.2px;
    color: #272f31;
    margin-bottom: 16px;
    display: block;
    text-transform: uppercase;
}
.cs-detail-related-row .RelatedResources-Wrapper__Heading h2 {
    font-family: "PolySans-Median", sans-serif;
    margin: 0;
    color: #272f31;
    font-size: 32px;
    font-weight: 400;
    line-height: 1.25;
}
.cs-detail-related-row .RelatedResources-slider_nav {
    display: flex;
    gap: 0;
}
.cs-detail-related-row .RelatedResources-slider_nav button {
    width: 48px; height: 48px;
    border-radius: 0;
    border: none;
    background-color: #272f31;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all .2s ease-in-out;
    padding: 0;
}
.cs-detail-related-row .RelatedResources-slider_nav button svg path { stroke: #fff; }
.cs-detail-related-row .RelatedResources-slider_nav .related-slider-prev { margin-right: 30px; }
.cs-detail-related-row .RelatedResources-slider_nav button:hover { background-color: #ff6d45; }
.cs-detail-related-row .RelatedResources-slider_nav button:hover svg path { stroke: #272f31; }
.cs-detail-related-row .RelatedResources-slider_nav button.slick-disabled { background-color: #dbdbdb !important; }
.cs-detail-related-row .RelatedResources-slider_nav button.slick-disabled svg path { stroke: #A3A6A7 !important; }

.cs-related-slider { margin: 0 -20px; }
.cs-related-slider .resources_card { outline: none !important; }
.cs-related-slider .resources_card .resources_card_wrapper { padding: 0 20px; }
.cs-related-slider .resources_card .resources_card_image {
    height: 250px;
    object-fit: cover;
    position: relative;
    overflow: hidden;
    background: #f5f5f5;
}
.cs-related-slider .resources_card .resources_card_image img {
    width: 100%; height: 100%;
    object-fit: cover;
    display: block;
    transition: transform .3s;
}
.cs-related-slider .resources_card:hover .resources_card_image img { transform: scale(1.05); }
.cs-related-slider .resources_card .resources_card_image .card-time {
    position: absolute;
    left: 24px; bottom: 24px;
    font-size: 12px;
    padding: 10px 15px;
    background-color: #fff;
    color: #272f31;
    text-transform: uppercase;
    z-index: 1;
    transform: translateY(80px);
    transition: all .2s;
    font-family: "PolySans-Median", sans-serif;
    font-weight: 400;
}
.cs-related-slider .resources_card:hover .resources_card_image .card-time { transform: translateY(0); }
.cs-related-slider .resources_card .resources_card_categoryANDtag {
    margin-top: 24px;
    font-family: "PolySans-SlimMono", monospace, sans-serif;
    font-size: 12px;
    line-height: 24px;
    letter-spacing: 1.2px;
    color: #272f31;
    text-transform: uppercase;
}
.cs-related-slider .resources_card .resources_card_title p {
    font-family: "PolySans-Median", sans-serif;
    font-size: 24px;
    line-height: 32px;
    margin: 12px 0 0;
    color: #272f31;
    font-weight: 400;
    transition: color .2s;
}
.cs-related-slider .resources_card:hover .resources_card_title p { color: #ff6d45; }
.cs-related-slider .resources_card a {
    text-decoration: none;
    color: inherit;
    display: block;
}
.cs-related-slider .slick-track { display: flex; }
.cs-related-slider .slick-slide { height: auto; }
.cs-related-slider .slick-slide > div { height: 100%; }

/* page-level overflow prevention */
.fl-builder-content[data-type="case_study"] { overflow-x: hidden; }

/* ── Responsive ── */
/* 断点精确匹配对标站: 1199 / 1024 / 768 / 576 / 568 / 430 / 375 */

/* ≤ 1199px */
@media (max-width: 1199px) {
    .cs-detail-hero > .fl-row-content-wrap {
        padding-top: 160px;
    }
    .cs-detail-hero-inner { gap: 40px; }
    .cs-detail-title { font-size: 38px; line-height: 46px; }
}

/* ≤ 1024px (tablet — hero stacks) */
@media (max-width: 1024px) {
    .cs-detail-hero > .fl-row-content-wrap {
        padding-top: 130px;
        padding-bottom: 40px;
        padding-left: 40px;
        padding-right: 40px;
    }
    .cs-detail-hero-inner {
        flex-direction: column;
        gap: 24px;
    }
    .cs-detail-hero-image {
        flex: 0 0 100%;
        max-width: 100%;
    }
    .cs-detail-hero-image .cs-hero-img {
        border-top-right-radius: 0;
        border-bottom-left-radius: 0;
    }
    .cs-detail-title { font-size: 32px; line-height: 40px; }
    .cs-detail-excerpt { font-size: 16px; line-height: 26px; }

    .cs-client-grid { grid-template-columns: repeat(2, 1fr); }
    .cs-detail-client-row > .fl-row-content-wrap { padding: 40px; }

    .cs-detail-body-row > .fl-row-content-wrap { padding-left: 40px; padding-right: 40px; }

    .cs-share-bar {
        flex-direction: column;
        align-items: flex-start;
        gap: 16px;
    }
    .cs-detail-share-row > .fl-row-content-wrap { padding-left: 40px; padding-right: 40px; }

    .cs-cta-inner {
        flex-direction: column;
        gap: 24px;
        text-align: center;
    }
    .cs-cta-btn a { width: 100%; display: block; }
    .cs-detail-cta-row > .fl-row-content-wrap {
        padding: 40px 20px;
        margin-top: 40px;
    }

    .cs-detail-related-row > .fl-row-content-wrap { padding-bottom: 60px; }
}

/* ≤ 768px (core mobile — Related Resources card sizing) */
@media (max-width: 768px) {
    .cs-detail-hero > .fl-row-content-wrap {
        padding-left: 20px;
        padding-right: 20px;
    }

    .cs-detail-related-row .RelatedResources-Wrapper__Heading { margin-bottom: 24px; }
    .cs-related-slider { margin: 0 -15px; }
    .cs-related-slider .resources_card { width: 295px !important; }
    .cs-related-slider .resources_card .resources_card_wrapper { padding: 0 15px; }
    .cs-related-slider .resources_card .resources_card_image { height: 265px; }
    .cs-related-slider .resources_card .resources_card_title p {
        font-size: 16px;
        line-height: 24px;
        margin: 8px 0 0;
    }
    .cs-related-slider .resources_card .resources_card_categoryANDtag { margin-top: 16px; }

    .cs-detail-cta-row > .fl-row-content-wrap {
        padding: 40px 20px;
        margin-top: 30px;
    }
    .cs-cta-text h2 { font-size: 22px; }

    .cs-detail-related-row > .fl-row-content-wrap { padding: 20px 20px 60px; }
    .cs-detail-client-row > .fl-row-content-wrap { padding: 40px 20px; }
    .cs-detail-body-row > .fl-row-content-wrap { padding: 40px 20px; }
    .cs-detail-share-row > .fl-row-content-wrap { padding: 20px; }
}

/* ≤ 576px (small mobile) */
@media (max-width: 576px) {
    .cs-detail-hero > .fl-row-content-wrap {
        padding-top: 100px;
        padding-bottom: 30px;
        padding-left: 16px;
        padding-right: 16px;
    }
    .cs-detail-title { font-size: 26px; line-height: 32px; }
    .cs-detail-excerpt { font-size: 14px; line-height: 22px; }
    .cs-detail-eyebrow { font-size: 11px; }

    .cs-client-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    .cs-detail-client-row > .fl-row-content-wrap { padding: 30px 16px; }

    .cs-detail-body-row > .fl-row-content-wrap { padding: 30px 16px; }
    .case-study-content .inner-body-text p {
        font-size: 15px;
        line-height: 1.67;
        letter-spacing: .56px;
    }
    .case-study-content .inner-body-text h2 { font-size: 22px; }
    .case-study-content .inner-body-text h3 { font-size: 17px; }
    .case-study-content .inner-body-text ul li { font-size: 15px; }

    .cs-detail-share-row > .fl-row-content-wrap { padding: 16px; }
    .cs-detail-cta-row > .fl-row-content-wrap {
        padding: 30px 16px;
        margin-top: 30px;
    }
    .cs-cta-text h2 { font-size: 20px; }

    .cs-detail-related-row > .fl-row-content-wrap { padding: 20px 16px 40px; }
    .cs-detail-related-row .RelatedResources-Wrapper { margin-top: 24px; }
}

/* ≤ 568px (slider nav hidden) */
@media (max-width: 568px) {
    .cs-detail-related-row .RelatedResources-slider_nav { display: none; }
}

/* ≤ 430px */
@media (max-width: 430px) {
    .cs-detail-hero > .fl-row-content-wrap { padding-left: 12px; padding-right: 12px; }
    .cs-detail-title { font-size: 24px; line-height: 30px; }
    .cs-detail-client-row > .fl-row-content-wrap { padding: 24px 12px; }
    .cs-detail-body-row > .fl-row-content-wrap { padding: 24px 12px; }
    .cs-detail-share-row > .fl-row-content-wrap { padding: 12px; }
    .cs-detail-cta-row > .fl-row-content-wrap { padding: 24px 12px; }
    .cs-detail-related-row > .fl-row-content-wrap { padding: 16px 12px 36px; }
}

/* ≤ 375px */
@media (max-width: 375px) {
    .cs-detail-title { font-size: 22px; line-height: 28px; }
    .cs-detail-excerpt { font-size: 13px; line-height: 20px; }
    .cs-cta-text h2 { font-size: 18px; }
    .case-study-content .inner-body-text p { font-size: 14px; }
}