/* ── CSS Variables ───────────────────────────────────────────── */
:root {
    --case-detail-brand: var(--rm-color-brand, #00856f);
    --case-detail-brand-dark: var(--rm-color-brand-dark, #00614f);
    --case-detail-brand-muted: var(--rm-color-brand-muted, #f0faf7);
    --case-detail-text: #1f2937;
    --case-detail-text-muted: #6b7280;
    --case-detail-gutter: clamp(20px, 4vw, 60px);
}

/* ── Hero Section ───────────────────────────────────────────── */
.case-detail-hero {
    position: relative;
    min-height: 380px;
    display: flex;
    align-items: flex-end;
    padding: 0 0 56px;
    overflow: hidden;
}

.case-detail-hero__bg {
    position: absolute;
    inset: 0;
}

.case-detail-hero__overlay {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(60% 70% at 20% 40%, rgba(0, 168, 138, 0.22), transparent 55%),
        linear-gradient(155deg, rgba(0, 35, 30, 0.94) 0%, rgba(0, 77, 65, 0.9) 55%, rgba(0, 133, 111, 0.85) 100%);
    pointer-events: none;
}

.case-detail-hero__img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.case-detail-hero__inner {
    position: relative;
    z-index: 1;
    max-width: min(960px, 100%);
    margin: 0 auto;
    padding: 0 var(--case-detail-gutter);
    text-align: left;
    width: 100%;
}

/* Breadcrumb */
.case-detail-hero .techd-breadcrumb {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
    margin-bottom: 24px;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.55);
}

.case-detail-hero .techd-breadcrumb a {
    color: rgba(255, 255, 255, 0.7);
    font-size: 13px;
    text-decoration: none;
    transition: color 0.2s ease;
}

.case-detail-hero .techd-breadcrumb a:hover {
    color: #fff;
}

.case-detail-hero .techd-breadcrumb span[aria-hidden] {
    color: rgba(255, 255, 255, 0.55);
}

.case-detail-hero .techd-breadcrumb span[aria-current] {
    color: rgba(255, 255, 255, 0.55);
    font-weight: 400;
}

/* Eyebrow (上级页面名) */
.case-detail-hero__eyebrow {
    margin: 0 0 14px;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--cases-brand-bright, #6ee7c7);
}

/* Category */
.case-detail-hero__category {
    display: inline-block;
    padding: 6px 16px;
    border-radius: 999px;
    background: rgba(0, 133, 111, 0.25);
    border: 1px solid rgba(0, 133, 111, 0.4);
    font-size: 12px;
    font-weight: 600;
    color: #7dd3c0;
    letter-spacing: 0.05em;
    margin-bottom: 16px;
}

/* Title */
.case-detail-hero__title {
    margin: 0 0 20px;
    font-size: clamp(1.75rem, 4vw, 2.75rem);
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.02em;
    color: #fff;
}

/* Meta */
.case-detail-hero__meta {
    display: flex;
    align-items: center;
    gap: 16px 28px;
    margin-top: 24px;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.82);
}

.case-detail-hero__meta span {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.case-detail-hero__meta svg {
    width: 14px;
    height: 14px;
    opacity: 0.7;
}

/* ── Main Body ───────────────────────────────────────────── */
.case-detail-body {
    background: #fff;
    padding: clamp(40px, 5vw, 60px) 0;
}

.case-detail-body__container {
    max-width: min(1280px, 100%);
    margin: 0 auto;
    padding: 0 var(--case-detail-gutter);
    display: grid;
    grid-template-columns: 1fr 320px;
    gap: clamp(32px, 4vw, 60px);
    align-items: start;
}

/* ── Article ───────────────────────────────────────────── */
.case-detail-article {
    min-width: 0;
}

.case-detail-article__lead {
    font-size: clamp(1rem, 1.1vw, 1.125rem);
    line-height: 1.85;
    color: var(--case-detail-text);
    margin-bottom: 32px;
    padding-bottom: 24px;
    border-bottom: 1px solid rgba(0, 133, 111, 0.1);
}

.case-detail-article__content {
    font-size: clamp(0.9375rem, 1vw, 1rem);
    line-height: 1.9;
    color: var(--case-detail-text);
}

.case-detail-article__content p {
    margin: 0 0 1.5em;
}

.case-detail-article__content img {
    max-width: 100%;
    height: auto;
    border-radius: 12px;
    margin: 1.5em 0;
}

.case-detail-article__content h2 {
    font-size: 1.375rem;
    font-weight: 700;
    color: var(--case-detail-text);
    margin: 2em 0 0.75em;
    padding-bottom: 0.5em;
    border-bottom: 2px solid var(--case-detail-brand);
    display: inline-block;
}

.case-detail-article__content h3 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--case-detail-text);
    margin: 1.5em 0 0.5em;
}

.case-detail-article__content blockquote {
    margin: 1.5em 0;
    padding: 1.25em 1.5em;
    background: var(--case-detail-brand-muted);
    border-left: 4px solid var(--case-detail-brand);
    border-radius: 0 8px 8px 0;
    font-style: italic;
    color: var(--case-detail-text-muted);
}

.case-detail-article__content blockquote p:last-child {
    margin-bottom: 0;
}

/* ── Article Navigation ───────────────────────────────────────────── */
.case-detail-nav {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-top: 48px;
    padding-top: 32px;
    border-top: 1px solid rgba(0, 133, 111, 0.1);
}

.case-detail-nav__link {
    display: flex;
    flex-direction: column;
    gap: 6px;
    padding: 16px 20px;
    background: #fafbfb;
    border: 1px solid rgba(0, 133, 111, 0.1);
    border-radius: 12px;
    text-decoration: none;
    transition: all 0.25s ease;
}

.case-detail-nav__link:hover {
    border-color: var(--case-detail-brand);
    background: var(--case-detail-brand-muted);
    transform: translateY(-2px);
}

.case-detail-nav__link--next {
    text-align: left;
}

.case-detail-nav__label {
    font-size: 12px;
    font-weight: 600;
    color: var(--case-detail-brand);
    letter-spacing: 0.05em;
}

.case-detail-nav__title {
    font-size: 14px;
    font-weight: 500;
    color: var(--case-detail-text);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.case-detail-nav__empty {
    /* Empty placeholder for grid layout */
}

/* ── Sidebar ───────────────────────────────────────────── */
.case-detail-sidebar {
    position: sticky;
    top: calc(var(--header-height, 90px) + 24px);
    display: flex;
    flex-direction: column;
    gap: 32px;
}

.case-detail-sidebar__section {
    background: #fff;
    border-radius: 16px;
    border: 1px solid rgba(0, 133, 111, 0.08);
    padding: 20px;
    box-shadow: 0 4px 16px rgba(0, 77, 65, 0.05);
}

.case-detail-sidebar__title {
    font-size: 1rem;
    font-weight: 700;
    color: var(--case-detail-text);
    margin: 0 0 16px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--case-detail-brand);
    display: inline-block;
}

/* Sidebar List */
.case-detail-sidebar__list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.case-detail-sidebar__item {
    padding-bottom: 12px;
    border-bottom: 1px solid rgba(0, 133, 111, 0.06);
}

.case-detail-sidebar__item:last-child {
    padding-bottom: 0;
    border-bottom: none;
}

.case-detail-sidebar__link {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    text-decoration: none;
    transition: opacity 0.2s ease;
}

.case-detail-sidebar__link:hover {
    opacity: 0.75;
}

.case-detail-sidebar__thumb {
    width: 60px;
    height: 60px;
    border-radius: 8px;
    object-fit: cover;
    flex-shrink: 0;
    background: #f0faf7;
}

.case-detail-sidebar__thumb--placeholder {
    background: linear-gradient(135deg, #e8f5f2 0%, #f0faf7 100%);
}

.case-detail-sidebar__item-title {
    font-size: 13px;
    font-weight: 500;
    color: var(--case-detail-text);
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.case-detail-sidebar__list--news .case-detail-sidebar__item {
    padding-bottom: 10px;
}

.case-detail-sidebar__list--news .case-detail-sidebar__link {
    flex-direction: column;
    gap: 4px;
}

.case-detail-sidebar__more {
    display: block;
    margin-top: 16px;
    padding-top: 12px;
    border-top: 1px solid rgba(0, 133, 111, 0.08);
    font-size: 13px;
    font-weight: 600;
    color: var(--case-detail-brand);
    text-decoration: none;
    transition: color 0.2s ease;
}

.case-detail-sidebar__more:hover {
    color: var(--case-detail-brand-dark);
}

/* ── Responsive ───────────────────────────────────────────── */
@media (max-width: 1024px) {
    .case-detail-body__container {
        grid-template-columns: 1fr 280px;
    }
}

@media (max-width: 900px) {
    .case-detail-body__container {
        grid-template-columns: 1fr;
    }

    .case-detail-sidebar {
        position: static;
        flex-direction: row;
        flex-wrap: wrap;
    }

    .case-detail-sidebar__section {
        flex: 1 1 300px;
    }
}

@media (max-width: 640px) {
    .case-detail-hero {
        min-height: clamp(320px, 45vh, 480px);
    }

    .case-detail-hero__meta {
        flex-direction: column;
        gap: 8px;
    }

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

    .case-detail-nav__link--next {
        text-align: left;
    }

    .case-detail-sidebar {
        flex-direction: column;
    }

    .case-detail-sidebar__section {
        flex: 1 1 auto;
    }
}
 .techd-breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: var(--rm-color-neutral-0);
    margin-bottom: 28px;
}
.techd-breadcrumb a {
    color: var(--rm-color-neutral-0);
    text-decoration: none;
    font-size: 14px;
    transition: color 0.2s ease;
}
.techd-breadcrumb span[aria-hidden] {
    color: var(--rm-color-neutral-0);
    user-select: none;
}

.techd-breadcrumb span[aria-current] {
    color: var(--rm-color-neutral-0);
    font-weight: 600;
}