:root {
    --content-ink: #172033;
    --content-muted: #657083;
    --content-paper: #f7f8fa;
    --content-surface: #ffffff;
    --content-border: #dfe3e8;
    --content-blue: #2f5fd0;
    --content-green: #16856b;
    --content-gold: #b7791f;
    --content-navy: #111a2d;
}

.case-teaser-band {
    background: var(--content-navy);
    color: #ffffff;
    padding-top: 7rem !important;
    padding-bottom: 7rem !important;
    scroll-margin-top: 4rem;
}

.case-teaser-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.05fr) minmax(20rem, 0.95fr);
    gap: 4rem;
    align-items: center;
}

.case-teaser-copy h2 {
    max-width: 12em;
    font-size: 2.35rem;
    line-height: 1.25;
    margin-bottom: 1.25rem;
}

.case-teaser-copy .paragraph {
    max-width: 42rem;
    color: rgba(255, 255, 255, 0.75);
}

.case-kicker {
    color: #8fb0ff;
    font-size: 0.8rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
}

.case-note {
    color: rgba(255, 255, 255, 0.52);
    font-size: 0.78rem;
    margin: 1rem 0 1.5rem;
}

.case-flow-mini {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    border-top: 1px solid rgba(255, 255, 255, 0.18);
    border-left: 1px solid rgba(255, 255, 255, 0.18);
}

.case-flow-mini li {
    min-height: 5.25rem;
    padding: 1rem;
    border-right: 1px solid rgba(255, 255, 255, 0.18);
    border-bottom: 1px solid rgba(255, 255, 255, 0.18);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    color: rgba(255, 255, 255, 0.9);
    font-weight: 600;
}

.case-flow-mini span {
    color: #8fb0ff;
    font-size: 0.7rem;
    font-weight: 700;
}

.content-page {
    margin: 0;
    background: var(--content-paper);
    color: var(--content-ink);
    font-family: "Lato", "PingFang SC", "Microsoft YaHei", sans-serif;
    line-height: 1.75;
}

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

.content-page a {
    color: inherit;
}

/* 内容页共用首页的 main.css 页头页脚。
   main.css 会把 h1~h3 改成 PT Serif 900 并撑高行高——页头页脚需要这套样式，
   正文不需要。用 :where() 把作用域权重归零，任何 .case-* 规则都能照常盖回来。 */
:where(.content-page main) h1,
:where(.content-page main) h2,
:where(.content-page main) h3 {
    font-family: inherit;
    font-weight: 700;
    line-height: inherit;
}

/* 首页页头是浮在深色 Hero 之上的透明条，内容页顶部是浅色的，
   直接沿用会让白色导航看不见，所以固定成首页滚动后的实心样式。
   main.css 里页头是 absolute/fixed 不占位，正文要自己让出这段高度。 */
.content-page .header-main nav {
    background: #12784a;
}

.content-page main {
    padding-top: 6.5rem;
}

/* main.css 在 767px 以下把页头压扁成 4rem，让出的高度要跟着变 */
@media only screen and (max-width: 767px) {
    .content-page main {
        padding-top: 4rem;
    }
}

.content-shell {
    width: min(72rem, calc(100% - 3rem));
    margin: 0 auto;
}

.content-breadcrumb {
    padding: 1.25rem 0 0;
    color: var(--content-muted);
    font-size: 0.78rem;
}

.content-breadcrumb a {
    color: var(--content-blue);
    text-decoration: none;
}

.case-hero {
    padding: 4.25rem 0 3.5rem;
    display: grid;
    grid-template-columns: minmax(0, 1.25fr) minmax(18rem, 0.75fr);
    gap: 4rem;
    align-items: end;
}

.case-label {
    margin: 0 0 0.75rem;
    color: var(--content-blue);
    font-size: 0.82rem;
    font-weight: 700;
}

.case-hero h1 {
    margin: 0;
    max-width: 15em;
    font-size: 3.2rem;
    line-height: 1.18;
    font-weight: 750;
}

/* .content-page 前缀是为了压过 main.css 的 p:last-child { margin: 0 }，不是随手加的 */
.content-page .case-lede {
    margin: 1.5rem 0 0;
    max-width: 46rem;
    color: var(--content-muted);
    font-size: 1.1rem;
}

.case-facts {
    margin: 0;
    padding: 0;
    border-top: 1px solid var(--content-border);
}

.case-facts div {
    padding: 0.85rem 0;
    border-bottom: 1px solid var(--content-border);
    display: grid;
    grid-template-columns: 5.5rem 1fr;
    gap: 1rem;
}

.case-facts dt {
    color: var(--content-muted);
    font-size: 0.78rem;
}

.case-facts dd {
    margin: 0;
    font-size: 0.86rem;
    font-weight: 650;
}

.case-summary-band {
    background: var(--content-navy);
    color: #ffffff;
    padding: 2.25rem 0;
}

.case-summary-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.case-summary-item {
    padding: 0 1.75rem;
    border-right: 1px solid rgba(255, 255, 255, 0.17);
}

.case-summary-item:first-child {
    padding-left: 0;
}

.case-summary-item:last-child {
    border-right: 0;
}

.case-summary-item strong {
    display: block;
    margin-bottom: 0.45rem;
    color: #ffffff;
    font-size: 0.92rem;
}

.case-summary-item span {
    color: rgba(255, 255, 255, 0.62);
    font-size: 0.82rem;
}

.case-article {
    padding: 4.5rem 0 5.5rem;
}

.case-section {
    display: grid;
    grid-template-columns: minmax(10rem, 0.28fr) minmax(0, 0.72fr);
    gap: 4rem;
    padding: 3.5rem 0;
    border-top: 1px solid var(--content-border);
}

.case-section > * {
    min-width: 0;
}

.case-section:first-child {
    padding-top: 0;
    border-top: 0;
}

.case-section h2 {
    margin: 0;
    font-size: 1.4rem;
    line-height: 1.4;
}

.case-section h3 {
    margin: 0 0 0.5rem;
    font-size: 1.05rem;
}

.case-section p {
    margin: 0 0 1rem;
    color: #3e4859;
}

.case-section ul {
    margin: 0;
    padding-left: 1.25rem;
}

.case-section li + li {
    margin-top: 0.65rem;
}

.case-flow {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    border-top: 1px solid var(--content-border);
    border-left: 1px solid var(--content-border);
}

.case-flow-figure {
    margin: 0;
}

.case-flow-figure img {
    display: block;
    width: 100%;
    height: auto;
    border: 1px solid var(--content-border);
}

.case-flow-figure figcaption {
    margin-top: 0.75rem;
    color: var(--content-muted);
    font-size: 0.78rem;
}

.case-flow-step {
    min-height: 9rem;
    padding: 1.25rem;
    border-right: 1px solid var(--content-border);
    border-bottom: 1px solid var(--content-border);
    background: var(--content-surface);
}

.case-flow-step:nth-child(1),
.case-flow-step:nth-child(2) {
    border-top: 3px solid var(--content-gold);
}

.case-flow-step:nth-child(3),
.case-flow-step:nth-child(4) {
    border-top: 3px solid var(--content-blue);
}

.case-flow-step:nth-child(5),
.case-flow-step:nth-child(6) {
    border-top: 3px solid var(--content-green);
}

.case-flow-step span {
    display: block;
    margin-bottom: 1.35rem;
    color: var(--content-muted);
    font-size: 0.72rem;
    font-weight: 700;
}

.case-flow-step p {
    margin: 0;
    color: var(--content-ink);
    font-size: 0.9rem;
    font-weight: 650;
}

.case-detail-list {
    display: grid;
    gap: 1.5rem;
}

.case-detail-item {
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--content-border);
}

.case-detail-item:last-child {
    padding-bottom: 0;
    border-bottom: 0;
}

.case-gallery-band {
    padding: 4.5rem 0;
    border-bottom: 1px solid var(--content-border);
    background: var(--content-surface);
}

.case-gallery-layout {
    display: grid;
    grid-template-columns: minmax(16rem, 0.8fr) minmax(0, 1.2fr);
    gap: clamp(2rem, 5vw, 5rem);
    align-items: center;
}

.case-gallery-layout > *,
.case-gallery {
    min-width: 0;
}

.case-gallery-copy {
    max-width: 32rem;
}

.case-gallery-copy h2 {
    max-width: 12em;
    margin: 0;
    font-size: 2rem;
    line-height: 1.35;
}

.case-gallery-intro {
    margin: 1.25rem 0 0;
    color: var(--content-muted);
    font-size: 0.95rem;
}

.case-gallery-current {
    margin-top: 2.5rem;
    padding-top: 1.25rem;
    border-top: 1px solid var(--content-border);
}

.case-gallery-current strong,
.case-gallery-current p {
    display: block;
}

.case-gallery-current strong {
    font-size: 1.05rem;
}

.case-gallery-current p {
    margin: 0.5rem 0 0;
    color: var(--content-muted);
    font-size: 0.85rem;
    line-height: 1.7;
}

.case-gallery-hint {
    margin: 2rem 0 0;
    color: var(--content-muted);
    font-size: 0.78rem;
}

.case-gallery-viewport {
    width: 100%;
    overflow-x: auto;
    overscroll-behavior-x: contain;
    scrollbar-width: none;
    scroll-snap-type: x mandatory;
    scroll-behavior: smooth;
    touch-action: pan-x pan-y;
}

.case-gallery-viewport::-webkit-scrollbar {
    display: none;
}

.case-gallery-viewport:focus-visible {
    outline: 2px solid var(--content-blue);
    outline-offset: 4px;
}

.case-gallery-track {
    --gallery-slide-width: min(15rem, calc(50vh * 714 / 1479));
    display: grid;
    grid-auto-flow: column;
    grid-auto-columns: var(--gallery-slide-width);
    width: max-content;
    gap: clamp(1.25rem, 3vw, 3rem);
    padding: 0 calc((100% - var(--gallery-slide-width)) / 2) 1rem;
}

.case-gallery-slide {
    scroll-snap-align: center;
    min-width: 0;
    margin: 0;
    opacity: 0.46;
    transform: scale(0.92);
    transition: opacity 260ms ease, transform 260ms ease;
}

.case-gallery-slide.is-active {
    opacity: 1;
    transform: scale(1);
}

.case-gallery-image {
    position: relative;
    display: block;
    width: 100%;
    padding: 0;
    overflow: hidden;
    border: 0;
    border-radius: 0;
    background: transparent;
    color: var(--content-ink);
    cursor: zoom-in;
    font: inherit;
    text-decoration: none;
}

.case-gallery-image picture,
.case-gallery-image img {
    display: block;
    width: 100%;
}

.case-gallery-image img {
    height: auto;
}

.case-gallery-image:focus-visible {
    outline: 3px solid rgba(47, 95, 208, 0.35);
    outline-offset: 3px;
}

.case-gallery-zoom {
    position: absolute;
    right: 1.25rem;
    bottom: 1.25rem;
    padding: 0.45rem 0.7rem;
    background: rgba(17, 26, 45, 0.9);
    color: #ffffff;
    font-size: 0.72rem;
    line-height: 1;
    opacity: 0;
    transform: translateY(0.35rem);
    transition: opacity 180ms ease, transform 180ms ease;
}

.case-gallery-image:hover .case-gallery-zoom,
.case-gallery-image:focus-visible .case-gallery-zoom {
    opacity: 1;
    transform: translateY(0);
}

.case-gallery-slide figcaption {
    display: none;
}

.case-gallery-slide figcaption strong {
    font-size: 0.95rem;
}

.case-gallery-slide figcaption span {
    color: var(--content-muted);
    font-size: 0.8rem;
    line-height: 1.65;
}

.case-gallery-copy .case-gallery-controls {
    display: grid;
    grid-template-columns: 2.75rem auto 1fr 2.75rem;
    gap: 1rem;
    align-items: center;
    max-width: 20rem;
    margin: 1.25rem 0 0;
}

.case-gallery-arrow,
.case-gallery-dialog-arrow,
.case-gallery-dialog-close {
    display: inline-grid;
    width: 2.75rem;
    height: 2.75rem;
    padding: 0;
    border: 1px solid var(--content-border);
    border-radius: 50%;
    place-items: center;
    background: var(--content-surface);
    color: var(--content-ink);
    cursor: pointer;
    font: inherit;
    font-size: 1.15rem;
}

.case-gallery-arrow:hover,
.case-gallery-arrow:focus-visible,
.case-gallery-dialog-arrow:hover,
.case-gallery-dialog-arrow:focus-visible,
.case-gallery-dialog-close:hover,
.case-gallery-dialog-close:focus-visible {
    border-color: var(--content-blue);
    color: var(--content-blue);
    outline: 0;
}

.case-gallery-status {
    color: var(--content-muted);
    font-size: 0.78rem;
    font-variant-numeric: tabular-nums;
}

.case-gallery-dots {
    display: flex;
    justify-content: center;
    gap: 0.65rem;
}

.case-gallery-dot {
    width: 0.55rem;
    height: 0.55rem;
    padding: 0;
    border: 0;
    border-radius: 50%;
    background: #c8cdd5;
    cursor: pointer;
    transition: background-color 180ms ease, transform 180ms ease;
}

.case-gallery-dot.is-active {
    background: var(--content-blue);
    transform: scale(1.35);
}

.case-gallery-dot:focus-visible {
    outline: 2px solid var(--content-blue);
    outline-offset: 3px;
}

/* 同 .case-lede：要压过 main.css 的 p:last-child { margin: 0 } */
.content-page .case-gallery-note {
    margin: 1.5rem 0 0;
    color: var(--content-muted);
    font-size: 0.75rem;
    text-align: left;
}

.case-gallery-dialog {
    width: min(56rem, calc(100% - 2rem));
    max-height: calc(100vh - 2rem);
    padding: 0;
    overflow: auto;
    border: 0;
    background: transparent;
    color: #ffffff;
}

.case-gallery-dialog:not([open]) {
    display: none;
}

.case-gallery-dialog::backdrop {
    background: rgba(7, 11, 20, 0.92);
}

.case-gallery-dialog figure {
    width: min(44.625rem, calc(100% - 7rem));
    margin: 1rem auto;
}

.case-gallery-dialog img {
    display: block;
    width: 100%;
    height: auto;
    background: #ffffff;
}

.case-gallery-dialog figcaption {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    padding: 0.8rem 0;
    font-size: 0.85rem;
}

.case-gallery-dialog figcaption span {
    color: rgba(255, 255, 255, 0.64);
    white-space: nowrap;
}

.case-gallery-dialog-close {
    position: fixed;
    top: 1.25rem;
    right: 1.25rem;
    z-index: 2;
    border-color: rgba(255, 255, 255, 0.35);
    background: rgba(17, 26, 45, 0.88);
    color: #ffffff;
    font-size: 1.6rem;
}

.case-gallery-dialog-arrow {
    position: fixed;
    top: 50%;
    z-index: 2;
    border-color: rgba(255, 255, 255, 0.35);
    background: rgba(17, 26, 45, 0.88);
    color: #ffffff;
    transform: translateY(-50%);
}

.case-gallery-dialog-prev {
    left: 1.25rem;
}

.case-gallery-dialog-next {
    right: 1.25rem;
}

body.has-gallery-dialog {
    overflow: hidden;
}

.case-ledger {
    width: 100%;
    /* main.css 的 table 带 margin-bottom 和圆角、table tr 带 border-bottom，这里都去掉 */
    margin: 0;
    border-radius: 0;
    border-collapse: collapse;
    background: var(--content-surface);
    font-size: 0.84rem;
}

.case-ledger tr {
    border-bottom: 0;
}

.case-table-wrap {
    max-width: 100%;
    overflow-x: auto;
}

.case-ledger th,
.case-ledger td {
    padding: 0.9rem 1rem;
    /* main.css 的 table th 会给表头单元格加圆角 */
    border-radius: 0;
    border: 1px solid var(--content-border);
    text-align: left;
    vertical-align: top;
}

.case-ledger th {
    background: #eef1f5;
    color: #394355;
    font-weight: 700;
}

.case-privacy {
    padding: 1.25rem 1.5rem;
    border-left: 3px solid var(--content-blue);
    background: #eef3ff;
    color: #33405a;
    font-size: 0.85rem;
}

.case-cta {
    padding: 3rem;
    /* 圆角和投影取自 main.css 的 .card，让它和页脚那张卡片是同一种东西 */
    border-radius: 0.5rem;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    background: var(--content-navy);
    color: #ffffff;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 2rem;
}

.case-cta h2 {
    margin: 0 0 0.5rem;
    font-size: 1.55rem;
}

.case-cta p {
    margin: 0;
    color: rgba(255, 255, 255, 0.64);
}

/* 按钮外观完全交给 main.css 的 .button.button-primary，
   和页脚那颗「联系客服」是同一个组件，这里只管它在弹性布局里不被压缩 */
.case-cta .button {
    flex: 0 0 auto;
}

@media only screen and (max-width: 900px) {
    .case-teaser-grid,
    .case-hero,
    .case-section {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .case-summary-grid {
        grid-template-columns: 1fr;
    }

    .case-gallery-layout {
        grid-template-columns: minmax(14rem, 0.9fr) minmax(0, 1.1fr);
        gap: 2.5rem;
    }

    .case-summary-item,
    .case-summary-item:first-child {
        padding: 1rem 0;
        border-right: 0;
        border-bottom: 1px solid rgba(255, 255, 255, 0.17);
    }

    .case-summary-item:last-child {
        border-bottom: 0;
    }
}

@media only screen and (max-width: 640px) {
    .content-shell {
        width: min(100% - 2rem, 72rem);
    }

    .case-teaser-grid {
        gap: 2.5rem;
    }

    .case-teaser-band {
        padding-top: 6rem !important;
        padding-bottom: 4.5rem !important;
    }

    .case-teaser-copy h2 {
        font-size: 1.8rem;
    }

    .case-flow-mini,
    .case-flow {
        grid-template-columns: 1fr;
    }

    .case-gallery-band {
        padding: 3.5rem 0 3rem;
    }

    .case-gallery-layout {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .case-gallery-copy {
        max-width: none;
    }

    .case-gallery-copy h2 {
        font-size: 1.65rem;
    }

    .case-gallery-current {
        margin-top: 1.5rem;
    }

    .case-gallery-hint {
        margin-top: 1.25rem;
    }

    .case-gallery-track {
        --gallery-slide-width: min(76vw, 20rem);
        gap: 1rem;
    }

    .case-gallery-slide {
        opacity: 0.35;
        transform: scale(0.94);
    }

    .case-gallery-image {
        padding: 0;
    }

    .case-gallery-zoom {
        right: 0.85rem;
        bottom: 0.85rem;
        opacity: 1;
        transform: none;
    }

    .case-gallery-controls {
        grid-template-columns: 2.75rem auto 1fr 2.75rem;
        gap: 0.65rem;
    }

    .content-page .case-gallery-note {
        margin-top: 1rem;
    }

    .case-gallery-dialog {
        width: 100%;
        max-height: 100vh;
    }

    .case-gallery-dialog figure {
        width: calc(100% - 1.5rem);
        margin: 4.5rem auto 5rem;
    }

    .case-gallery-dialog-arrow {
        top: auto;
        bottom: 1rem;
        transform: none;
    }

    .case-gallery-dialog-prev {
        left: calc(50% - 3.25rem);
    }

    .case-gallery-dialog-next {
        right: calc(50% - 3.25rem);
    }

    .case-hero {
        padding: 3rem 0 2.5rem;
    }

    .case-hero h1 {
        font-size: 2.25rem;
    }

    .case-article {
        padding: 3.25rem 0 4rem;
    }

    .case-section {
        padding: 2.5rem 0;
    }

    .case-ledger {
        width: 42rem;
        max-width: none;
        white-space: nowrap;
    }

    .case-cta {
        padding: 2rem;
        align-items: flex-start;
        flex-direction: column;
    }

}

@media (prefers-reduced-motion: reduce) {
    .case-gallery-viewport {
        scroll-behavior: auto;
    }

    .case-gallery-slide,
    .case-gallery-zoom,
    .case-gallery-dot {
        transition: none;
    }
}

@media (prefers-reduced-motion: reduce) {
    .content-page *,
    .content-page *::before,
    .content-page *::after {
        scroll-behavior: auto !important;
        transition: none !important;
    }
}