:root {
    --lab-midnight: #0f1725;
    --lab-deep: #111b2b;
    --lab-slate: #182438;
    --lab-ink: #182033;
    --lab-cream: #f4ead6;
    --lab-paper: #fffaf0;
    --lab-amber: #c9852a;
    --lab-amber-soft: #e5b565;
    --lab-line: rgba(244, 234, 214, 0.13);
    --lab-muted: rgba(244, 234, 214, 0.66);
}

html {
    scroll-behavior: smooth;
}

body.lab-page {
    margin: 0;
    overflow-x: hidden;
    background: var(--lab-midnight);
    color: var(--lab-cream);
    font-family: "Manrope", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

body.lab-page.zh {
    font-family: "PingFang TC", "Noto Sans TC", "Microsoft JhengHei", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

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

.lab-page a {
    color: inherit;
}

.lab-shell {
    width: min(100%, 1240px);
    margin-inline: auto;
    padding-inline: clamp(1.25rem, 4vw, 4rem);
}

.lab-band {
    position: relative;
    padding-block: clamp(5rem, 9vw, 8rem);
}

.lab-band + .lab-band {
    border-top: 1px solid var(--lab-line);
}

.lab-kicker {
    display: block;
    margin-bottom: 1.25rem;
    color: var(--lab-amber-soft);
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.24em;
    text-transform: uppercase;
}

.lab-hero {
    min-height: min(880px, 100svh);
    display: grid;
    align-items: end;
    padding-top: clamp(9.5rem, 16vw, 13rem);
    overflow: hidden;
    background:
        radial-gradient(circle at 76% 28%, rgba(201, 133, 42, 0.2), transparent 0 25%),
        radial-gradient(circle at 82% 34%, rgba(229, 181, 101, 0.08), transparent 0 34%),
        linear-gradient(145deg, #0c1421 0%, #131f31 54%, #0e1725 100%);
}

.lab-hero::before {
    content: "";
    position: absolute;
    width: min(58vw, 680px);
    aspect-ratio: 1;
    top: 12%;
    right: -9%;
    border: 1px solid rgba(229, 181, 101, 0.17);
    border-radius: 50%;
    box-shadow:
        0 0 0 70px rgba(229, 181, 101, 0.025),
        0 0 0 140px rgba(229, 181, 101, 0.02);
    pointer-events: none;
}

.lab-hero-grid {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: minmax(0, 1.25fr) minmax(250px, 0.55fr);
    gap: clamp(3rem, 8vw, 8rem);
    align-items: end;
}

.lab-hero h1,
.lab-section-title,
.lab-card h3,
.lab-results h2,
.lab-closing h2 {
    font-family: "Playfair Display", "Noto Serif TC", Georgia, serif;
    font-weight: 400;
}

.zh .lab-hero h1,
.zh .lab-section-title,
.zh .lab-card h3,
.zh .lab-results h2,
.zh .lab-closing h2 {
    font-family: "Noto Serif TC", "PingFang TC", serif;
    font-weight: 600;
}

.lab-hero h1 {
    max-width: 880px;
    margin: 0;
    font-size: clamp(3.15rem, 7.3vw, 7.1rem);
    line-height: 0.98;
    letter-spacing: -0.035em;
    text-wrap: balance;
}

.zh .lab-hero h1 {
    max-width: 930px;
    font-size: clamp(3rem, 6.4vw, 6.25rem);
    line-height: 1.08;
    letter-spacing: 0;
}

.lab-hero-copy {
    padding-bottom: 0.65rem;
}

.lab-hero-copy p {
    margin: 0;
    color: var(--lab-muted);
    font-size: clamp(1rem, 1.4vw, 1.2rem);
    font-weight: 300;
    line-height: 1.75;
}

.lab-principle {
    margin-top: 2rem;
    padding-top: 1.4rem;
    border-top: 1px solid var(--lab-line);
    color: var(--lab-amber-soft);
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.14em;
    text-transform: uppercase;
}

.lab-intro {
    background: var(--lab-paper);
    color: var(--lab-ink);
}

.lab-intro-grid {
    display: grid;
    grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
    gap: clamp(3rem, 9vw, 9rem);
    align-items: start;
}

.lab-section-title {
    max-width: 760px;
    margin: 0;
    font-size: clamp(2.55rem, 5vw, 5.15rem);
    line-height: 1.06;
    letter-spacing: -0.025em;
    text-wrap: balance;
}

.zh .lab-section-title {
    letter-spacing: 0;
    line-height: 1.16;
}

.lab-intro-copy {
    padding-top: 0.5rem;
}

.lab-intro-copy p {
    max-width: 680px;
    margin: 0 0 1.25rem;
    color: #455169;
    font-size: clamp(1rem, 1.35vw, 1.18rem);
    font-weight: 300;
    line-height: 1.8;
}

.lab-intro-copy p:last-child {
    margin-bottom: 0;
}

.lab-ecosystem {
    background: var(--lab-deep);
}

.lab-ecosystem-header {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(260px, 0.55fr);
    gap: 2rem;
    align-items: end;
    margin-bottom: clamp(3rem, 6vw, 5rem);
}

.lab-ecosystem-header p {
    margin: 0;
    color: var(--lab-muted);
    font-size: 1rem;
    line-height: 1.75;
}

.lab-path {
    list-style: none;
    margin: 0;
    padding: 0;
    border-top: 1px solid var(--lab-line);
}

.lab-card {
    display: grid;
    grid-template-columns: 4rem minmax(190px, 0.65fr) minmax(0, 1fr) auto;
    gap: clamp(1.25rem, 3vw, 3rem);
    align-items: start;
    padding-block: clamp(2rem, 4vw, 3.25rem);
    border-bottom: 1px solid var(--lab-line);
}

.lab-card-number {
    padding-top: 0.35rem;
    color: var(--lab-amber-soft);
    font-family: "Playfair Display", Georgia, serif;
    font-size: 1.25rem;
}

.lab-card h3 {
    margin: 0;
    font-size: clamp(1.8rem, 3vw, 2.85rem);
    line-height: 1.12;
}

.lab-card-copy p {
    max-width: 650px;
    margin: 0;
    color: var(--lab-muted);
    font-size: 0.98rem;
    line-height: 1.8;
}

.lab-card-note {
    display: inline-block;
    margin-top: 1rem;
    color: rgba(244, 234, 214, 0.48);
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.11em;
    text-transform: uppercase;
}

.lab-card-link {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    min-width: max-content;
    margin-top: 0.3rem;
    padding-bottom: 0.35rem;
    border-bottom: 1px solid rgba(229, 181, 101, 0.5);
    color: var(--lab-amber-soft);
    font-size: 0.74rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-decoration: none;
    text-transform: uppercase;
    transition: color 180ms ease, border-color 180ms ease;
}

.lab-card-link:hover,
.lab-card-link:focus-visible {
    color: #f2c77f;
    border-color: #f2c77f;
}

.lab-research {
    background: #141f30;
}

.lab-research-grid {
    display: grid;
    grid-template-columns: minmax(0, 0.75fr) minmax(0, 1.25fr);
    gap: clamp(3rem, 9vw, 9rem);
    align-items: start;
}

.lab-quote {
    margin: 0;
    color: var(--lab-cream);
    font-family: "Playfair Display", "Noto Serif TC", Georgia, serif;
    font-size: clamp(2.15rem, 4.4vw, 4.7rem);
    line-height: 1.08;
    letter-spacing: -0.02em;
    text-wrap: balance;
}

.zh .lab-quote {
    letter-spacing: 0;
    line-height: 1.2;
}

.lab-validity {
    display: grid;
    gap: 1rem;
}

.lab-validity-item {
    display: grid;
    grid-template-columns: 1.75rem 1fr;
    gap: 1rem;
    padding: 1.15rem 0;
    border-bottom: 1px solid var(--lab-line);
}

.lab-validity-item span {
    color: var(--lab-amber-soft);
    font-size: 0.8rem;
}

.lab-validity-item p {
    margin: 0;
    color: var(--lab-muted);
    line-height: 1.7;
}

.lab-results {
    background: var(--lab-paper);
    color: var(--lab-ink);
}

.lab-results-inner {
    display: grid;
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
    gap: clamp(3rem, 9vw, 9rem);
    align-items: center;
}

.lab-empty-marker {
    position: relative;
    min-height: 320px;
    display: grid;
    place-items: center;
    border: 1px solid rgba(24, 32, 51, 0.14);
    background: rgba(24, 32, 51, 0.025);
}

.lab-empty-marker span {
    color: #667086;
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.16em;
    text-transform: uppercase;
}

.lab-results h2 {
    margin: 0 0 1.5rem;
    font-size: clamp(2.6rem, 5vw, 5.1rem);
    line-height: 1.05;
    letter-spacing: -0.025em;
}

.zh .lab-results h2 {
    letter-spacing: 0;
    line-height: 1.16;
}

.lab-results p {
    max-width: 650px;
    margin: 0;
    color: #455169;
    font-size: clamp(1rem, 1.3vw, 1.17rem);
    line-height: 1.8;
}

.lab-closing {
    text-align: center;
    background:
        radial-gradient(circle at 50% 0%, rgba(201, 133, 42, 0.17), transparent 0 38%),
        var(--lab-midnight);
}

.lab-closing h2 {
    max-width: 850px;
    margin: 0 auto;
    font-size: clamp(2.7rem, 5.6vw, 5.7rem);
    line-height: 1.05;
    letter-spacing: -0.025em;
    text-wrap: balance;
}

.zh .lab-closing h2 {
    letter-spacing: 0;
    line-height: 1.16;
}

.lab-closing p {
    max-width: 690px;
    margin: 1.5rem auto 0;
    color: var(--lab-muted);
    line-height: 1.75;
}

.lab-actions {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1rem;
    margin-top: 2.5rem;
}

.lab-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 52px;
    padding: 0.9rem 1.5rem;
    border: 1px solid rgba(244, 234, 214, 0.24);
    color: var(--lab-cream);
    font-size: 0.73rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-decoration: none;
    text-transform: uppercase;
    transition: background 180ms ease, color 180ms ease, border-color 180ms ease;
}

.lab-button--primary {
    border-color: var(--lab-amber);
    background: var(--lab-amber);
    color: var(--lab-ink);
}

.lab-button:hover,
.lab-button:focus-visible {
    border-color: var(--lab-amber-soft);
    background: rgba(229, 181, 101, 0.08);
}

.lab-button--primary:hover,
.lab-button--primary:focus-visible {
    background: var(--lab-amber-soft);
    color: var(--lab-ink);
}

#mobile-menu {
    transform: translateY(-100%);
    transition: transform 0.35s ease;
    visibility: hidden;
    pointer-events: none;
    overflow-y: auto;
}

#mobile-menu.open {
    transform: translateY(0);
    visibility: visible;
    pointer-events: auto;
}

.language-menu {
    opacity: 0;
    transform: translateY(8px);
    visibility: hidden;
    pointer-events: none;
}

.language-menu.open,
.language-wrap:hover .language-menu,
.language-wrap:focus-within .language-menu {
    opacity: 1;
    transform: translateY(0);
    visibility: visible;
    pointer-events: auto;
}

@media (max-width: 900px) {
    .lab-hero-grid,
    .lab-intro-grid,
    .lab-ecosystem-header,
    .lab-research-grid,
    .lab-results-inner {
        grid-template-columns: 1fr;
    }

    .lab-hero-grid {
        gap: 2.5rem;
    }

    .lab-card {
        grid-template-columns: 2.5rem minmax(0, 1fr);
    }

    .lab-card-copy,
    .lab-card-link {
        grid-column: 2;
    }

    .lab-card-link {
        justify-self: start;
    }

    .lab-empty-marker {
        min-height: 240px;
    }
}

@media (max-width: 640px) {
    .lab-band {
        padding-block: 4.25rem;
    }

    .lab-hero {
        min-height: auto;
        padding-top: 9.25rem;
        padding-bottom: 4.75rem;
    }

    .lab-hero::before {
        width: 94vw;
        right: -48%;
        top: 10%;
    }

    .lab-hero h1 {
        font-size: clamp(2.8rem, 13.5vw, 4.1rem);
        line-height: 1.02;
    }

    .zh .lab-hero h1 {
        font-size: clamp(2.65rem, 12.2vw, 3.75rem);
        line-height: 1.14;
    }

    .lab-card {
        grid-template-columns: 2rem minmax(0, 1fr);
        gap: 1rem;
    }

    .lab-card-number {
        font-size: 1rem;
    }

    .lab-card h3 {
        font-size: 1.8rem;
    }

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

    .lab-button {
        width: 100%;
    }
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    *,
    *::before,
    *::after {
        transition-duration: 0.01ms !important;
    }
}