:root {
    --bg: #05070a;
    --bg-soft: #0c1117;
    --panel: rgba(12, 18, 24, 0.84);
    --panel-strong: rgba(8, 12, 16, 0.94);
    --line: rgba(116, 182, 255, 0.16);
    --line-strong: rgba(139, 240, 195, 0.28);
    --text: #edf3f7;
    --muted: #93a2af;
    --accent: #8bf0c3;
    --accent-alt: #74b6ff;
    --accent-warm: #ffcf6a;
    --shadow: 0 24px 70px rgba(0, 0, 0, 0.3);
    --radius-xl: 20px;
    --radius-lg: 16px;
    --radius-md: 12px;
    --max-width: 1180px;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 92px;
}

body {
    margin: 0;
    min-height: 100vh;
    color: var(--text);
    font-family: "Space Grotesk", "Segoe UI", sans-serif;
    background:
        radial-gradient(circle at 18% 14%, rgba(255, 207, 106, 0.12), transparent 24%),
        radial-gradient(circle at 84% 16%, rgba(116, 182, 255, 0.18), transparent 22%),
        radial-gradient(circle at 52% 120%, rgba(139, 240, 195, 0.1), transparent 34%),
        linear-gradient(180deg, #0f1419 0%, #0a0e13 52%, #07090d 100%);
    overflow-x: hidden;
}

body::before {
    content: "";
    position: fixed;
    inset: 0;
    background:
        radial-gradient(circle at top, rgba(255, 255, 255, 0.06), transparent 46%),
        repeating-linear-gradient(
            180deg,
            rgba(255, 255, 255, 0.03) 0,
            rgba(255, 255, 255, 0.03) 1px,
            transparent 1px,
            transparent 18px
        );
    mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.9), rgba(0, 0, 0, 0.48) 72%, transparent 100%);
    opacity: 0.55;
    pointer-events: none;
    z-index: -2;
}

body::after {
    content: "";
    position: fixed;
    inset: 0;
    background:
        radial-gradient(circle at 50% 0%, transparent 0 42%, rgba(0, 0, 0, 0.28) 78%, rgba(0, 0, 0, 0.48) 100%),
        linear-gradient(90deg, rgba(255, 255, 255, 0.02), transparent 18%, transparent 82%, rgba(255, 255, 255, 0.02));
    pointer-events: none;
    z-index: -1;
}

img {
    display: block;
    max-width: 100%;
}

a {
    color: inherit;
    text-decoration: none;
}

button {
    font: inherit;
}

.brand-button {
    padding: 0;
    border: 0;
    background: none;
    color: inherit;
    text-align: left;
    cursor: pointer;
}

.container {
    width: min(var(--max-width), calc(100% - 40px));
    margin: 0 auto;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 20;
    padding: 16px 0;
    backdrop-filter: blur(18px);
    background: linear-gradient(180deg, rgba(5, 7, 10, 0.9), rgba(5, 7, 10, 0.54));
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

.nav {
    display: flex;
    align-items: center;
    gap: 20px;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 14px;
    min-width: 0;
}

.brand img,
.footer-brand img {
    width: 42px;
    height: 42px;
    padding: 6px;
    border-radius: var(--radius-md);
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.brand-copy,
.footer-brand > div {
    display: grid;
    gap: 3px;
}

.brand-copy strong,
.footer-brand strong,
.section-heading h2,
.hero-copy h1,
.feature-card h3,
.release-card h2 {
    letter-spacing: -0.04em;
}

.brand-copy strong,
.footer-brand strong {
    font-size: 0.98rem;
}

.brand-copy span,
.footer-copy,
.tagline {
    color: var(--muted);
    font-size: 0.84rem;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-left: auto;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 20px;
}

.nav-links a,
.nav-cta,
.lang-link,
.button,
.eyebrow,
.feature-index,
.panel-head,
.terminal-card p,
.status-list,
.spec-label,
.workflow-item strong {
    font-family: "IBM Plex Mono", "Segoe UI", monospace;
}

.nav-links a,
.nav-cta,
.lang-link {
    font-size: 0.83rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.nav-links a {
    color: var(--muted);
    transition: color 0.2s ease;
}

.nav-links a:hover,
.nav-links a:focus-visible,
.lang-link:hover,
.lang-link:focus-visible,
.nav-cta:hover,
.nav-cta:focus-visible {
    color: var(--text);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.lang-switch {
    display: inline-flex;
    align-items: center;
    gap: 2px;
    padding: 2px;
    border-radius: 999px;
    border: 1px solid rgba(255, 255, 255, 0.08);
    background: rgba(255, 255, 255, 0.03);
}

.lang-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    padding: 6px 9px;
    border-radius: 999px;
    color: var(--muted);
    font-size: 0.74rem;
}

.lang-link.is-active {
    background: rgba(255, 255, 255, 0.08);
    color: var(--text);
}

.nav-cta,
.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 13px 18px;
    border-radius: var(--radius-md);
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(255, 255, 255, 0.03);
    transition: transform 0.2s ease, border-color 0.2s ease, background 0.2s ease, box-shadow 0.2s ease;
}

.nav-cta:hover,
.nav-cta:focus-visible,
.button:hover,
.button:focus-visible {
    transform: translateY(-1px);
    border-color: rgba(255, 255, 255, 0.18);
}

.button {
    padding-inline: 20px;
    font-size: 0.84rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.button.primary {
    background: linear-gradient(135deg, var(--accent), #c9ffe9);
    border-color: transparent;
    color: #04110b;
    box-shadow: 0 16px 36px rgba(139, 240, 195, 0.18);
}

.button.secondary,
.button.tertiary {
    color: var(--text);
}

.button.tertiary {
    background: rgba(116, 182, 255, 0.08);
    border-color: rgba(116, 182, 255, 0.18);
}

.nav-toggle {
    display: none;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    padding: 0;
    border-radius: var(--radius-md);
    border: 0;
    background: transparent;
    color: var(--text);
    cursor: pointer;
}

.nav-toggle-box {
    display: grid;
    gap: 5px;
}

.nav-toggle-line {
    width: 18px;
    height: 2px;
    border-radius: 999px;
    background: currentColor;
    transform-origin: center;
    transition: transform 0.2s ease, opacity 0.2s ease;
}

.nav.is-menu-open .nav-toggle-line:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.nav.is-menu-open .nav-toggle-line:nth-child(2) {
    opacity: 0;
}

.nav.is-menu-open .nav-toggle-line:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

.hero {
    display: grid;
    justify-items: center;
    gap: 22px;
    padding: 30px 0 28px;
    min-height: calc(100svh - 78px);
    align-content: center;
}

.hero-copy {
    display: grid;
    justify-items: center;
    gap: 14px;
    width: 100%;
    max-width: 860px;
    margin: 0 auto;
    text-align: center;
}

.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    width: fit-content;
    margin: 0;
    padding: 8px 12px;
    border-radius: var(--radius-md);
    border: 1px solid var(--line);
    background: rgba(255, 255, 255, 0.03);
    color: #cde2f6;
    font-size: 0.74rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
}

.hero-copy h1 {
    margin: 12px 0 10px;
    max-width: none;
    font-size: clamp(1.2rem, 2.1vw, 2rem);
    line-height: 1.06;
    white-space: nowrap;
}

.locale-en .hero-copy h1 {
    width: fit-content;
    margin-inline: auto;
}

.locale-zh .hero-copy h1 {
    max-width: none;
    font-size: clamp(1.05rem, 1.9vw, 1.7rem);
    line-height: 1.02;
}

.hero-carousel {
    display: grid;
    justify-items: center;
    gap: 12px;
    width: min(100%, 680px);
    margin: 0 auto;
}

.carousel-track {
    display: grid;
    width: 100%;
}

.carousel-slide {
    grid-area: 1 / 1;
    margin: 0;
    opacity: 0;
    transform: translateY(8px);
    transition: opacity 0.35s ease, transform 0.35s ease;
    pointer-events: none;
}

.carousel-slide.is-active {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}

.carousel-dots {
    display: inline-flex;
    gap: 8px;
    justify-content: center;
}

.carousel-dot {
    width: 9px;
    height: 9px;
    padding: 0;
    border: 0;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.28);
    cursor: pointer;
    transition: transform 0.2s ease, background 0.2s ease;
}

.carousel-dot.is-active {
    background: rgba(255, 255, 255, 0.9);
    transform: scale(1.1);
}

.hero-lead {
    max-width: 62ch;
    margin: 22px 0 0;
    color: #cad6de;
    font-size: 1.02rem;
    line-height: 1.8;
}

.spec-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.workflow-item,
.feature-card,
.spec-card,
.shot,
.workflow-shell,
.release-card {
    box-shadow: var(--shadow);
}

.feature-card {
    box-shadow: none;
}

.shot img {
    width: 100%;
    height: auto;
    aspect-ratio: 16 / 9;
    object-fit: contain;
    border-radius: calc(var(--radius-lg) - 6px);
    background: #05070a;
}
.spec-label {
    margin: 0 0 12px;
    color: #cde2f6;
    font-size: 0.74rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
}

.section {
    padding: 38px 0;
    content-visibility: auto;
    contain-intrinsic-size: 0 720px;
}

.product-intro {
    padding-top: 8px;
}

.product-intro-shell {
    display: grid;
    grid-template-columns: 1fr;
    justify-items: center;
    gap: 20px;
    padding: 28px 30px;
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-lg);
    background:
        linear-gradient(135deg, rgba(255, 255, 255, 0.03), rgba(255, 255, 255, 0.015)),
        rgba(7, 11, 15, 0.72);
    box-shadow: var(--shadow);
}

.product-intro-heading {
    justify-items: center;
    gap: 10px;
    margin-bottom: 0;
    text-align: center;
}

.product-intro-heading p,
.product-intro-copy p {
    margin: 0;
}

.product-intro-heading h2 {
    max-width: none;
    margin: 0;
    font-size: clamp(1.8rem, 3.2vw, 2.9rem);
    line-height: 0.98;
}

.product-intro-copy {
    margin-inline: auto;
}

.product-intro-copy p {
    color: #d6e1ea;
    font-size: clamp(1rem, 1.35vw, 1.14rem);
    line-height: 1.8;
    text-align: center;
}

.locale-zh .product-intro-heading h2 {
    font-size: clamp(1.55rem, 2.4vw, 2.3rem);
    line-height: 1.08;
}

.section-heading {
    display: grid;
    gap: 12px;
    max-width: 760px;
    margin-bottom: 24px;
}

.section-heading h2 {
    margin: 0;
    font-size: clamp(2rem, 4vw, 3.4rem);
    line-height: 1;
}

.section-heading p:last-child,
.feature-card p,
.workflow-item p,
.shot figcaption,
.spec-list li,
.release-card p:last-of-type {
    margin: 0;
    color: var(--muted);
    line-height: 1.75;
}

.feature-grid,
.gallery-grid,
.workflow-list,
.section-split {
    display: grid;
    gap: 16px;
}

.features-shell {
    display: grid;
    gap: 18px;
    padding: 0;
    border: 0;
    background: transparent;
    box-shadow: none;
}

.feature-heading {
    justify-items: start;
    width: 100%;
    margin-bottom: 0;
    padding-bottom: 12px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
    text-align: left;
}

.feature-heading h2 {
    max-width: none;
    color: rgba(147, 162, 175, 0.9);
    font-size: clamp(0.98rem, 1.2vw, 1.15rem);
    font-weight: 500;
    line-height: 1.1;
    margin-inline: 0;
}

.locale-en .feature-heading h2 {
    width: auto;
    max-width: none;
    margin-inline: 0;
    white-space: nowrap;
}

.feature-grid {
    grid-template-columns: 1fr;
    gap: 0;
    margin-top: 0;
}

.feature-note {
    margin: 14px 0 0;
    color: var(--muted);
    font-family: "IBM Plex Mono", monospace;
    font-size: 0.76rem;
    letter-spacing: 0.03em;
    line-height: 1.7;
    text-align: left;
}

.feature-card {
    position: relative;
    display: grid;
    grid-template-columns: 78px minmax(180px, 0.72fr) minmax(0, 1fr);
    align-items: start;
    gap: 12px 28px;
    min-height: 0;
    padding: 26px 0;
    border-radius: 0;
    border: 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    background: transparent;
}

.feature-card:last-child {
    border-bottom: 0;
}

.feature-index {
    align-self: center;
    color: rgba(116, 182, 255, 0.22);
    font-family: "IBM Plex Mono", monospace;
    font-size: clamp(2.7rem, 6vw, 4.8rem);
    line-height: 0.85;
    letter-spacing: -0.08em;
}

.feature-card h3 {
    margin: 0;
    font-size: clamp(1.4rem, 2.6vw, 2.15rem);
    line-height: 1.05;
}

.feature-card p {
    max-width: 40ch;
    padding-top: 4px;
    max-width: none;
}

.section-split {
    grid-template-columns: minmax(0, 1fr) minmax(280px, 0.54fr);
    align-items: end;
    margin-bottom: 24px;
}

.spec-card,
.shot,
.workflow-shell,
.release-card {
    border-radius: var(--radius-lg);
    border: 1px solid var(--line);
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0.02));
}

.spec-card {
    padding: 22px;
}

.spec-list {
    display: grid;
    gap: 10px;
}

.spec-list li {
    position: relative;
    padding-left: 18px;
}

.spec-list li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 11px;
    width: 8px;
    height: 8px;
    transform: rotate(45deg);
    background: var(--accent);
}

.gallery-grid {
    grid-template-columns: 1fr;
}

.gallery-grid-single {
    grid-template-columns: 1fr;
}

.shot {
    margin: 0;
    padding: 8px;
}

.shot figcaption {
    margin-top: 12px;
}

.workflow-shell {
    padding: 24px;
}

.workflow-heading {
    margin-bottom: 18px;
}

.workflow-list {
    grid-template-columns: repeat(4, minmax(0, 1fr));
}

.workflow-item {
    padding: 18px;
    border-radius: var(--radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.08);
    background: rgba(255, 255, 255, 0.03);
}

.workflow-item strong {
    display: block;
    margin-bottom: 10px;
    color: var(--accent-warm);
    font-size: 0.78rem;
    letter-spacing: 0.14em;
}

.release-badge-wrap {
    display: flex;
    width: 100%;
    justify-content: center;
}

.store-badge {
    display: inline-grid;
    grid-template-columns: auto auto;
    align-items: center;
    gap: 10px;
    min-width: 236px;
    width: fit-content;
    padding: 10px 12px;
    border-radius: var(--radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.12);
    background: linear-gradient(180deg, rgba(12, 15, 20, 0.96), rgba(8, 11, 15, 0.96));
    box-shadow: 0 18px 38px rgba(0, 0, 0, 0.28), inset 0 1px 0 rgba(255, 255, 255, 0.06);
    align-self: flex-start;
    color: inherit;
    text-decoration: none;
    transition: transform 180ms ease, border-color 180ms ease, box-shadow 180ms ease;
}

.store-badge:hover {
    border-color: rgba(255, 255, 255, 0.2);
    box-shadow: 0 22px 46px rgba(0, 0, 0, 0.34), inset 0 1px 0 rgba(255, 255, 255, 0.08);
    transform: translateY(-1px);
}

.store-badge:focus-visible {
    outline: 2px solid rgba(255, 255, 255, 0.55);
    outline-offset: 3px;
}

.store-badge-icon {
    display: grid;
    grid-template-columns: repeat(2, 12px);
    gap: 4px;
    padding: 10px;
    width: fit-content;
    border-radius: calc(var(--radius-lg) - 6px);
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.07), rgba(255, 255, 255, 0.03));
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.06);
    justify-self: start;
}

.store-badge-icon span {
    width: 12px;
    height: 12px;
    border-radius: 3px;
}

.store-badge-icon span:nth-child(1) {
    background: #f25022;
}

.store-badge-icon span:nth-child(2) {
    background: #7fba00;
}

.store-badge-icon span:nth-child(3) {
    background: #00a4ef;
}

.store-badge-icon span:nth-child(4) {
    background: #ffb900;
}

.store-badge-copy {
    display: grid;
    gap: 2px;
}

.store-badge-kicker {
    color: #cfd7df;
    font-family: "IBM Plex Mono", "Segoe UI", monospace;
    font-size: 0.66rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.store-badge-copy strong {
    display: block;
    font-size: 1rem;
    letter-spacing: -0.02em;
}

.footer {
    padding-bottom: 40px;
    content-visibility: auto;
    contain-intrinsic-size: 0 140px;
}

.footer-inner {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    gap: 18px;
    padding-top: 24px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-brand {
    display: inline-flex;
    align-items: center;
    gap: 12px;
}

.tagline {
    max-width: 460px;
    line-height: 1.75;
    text-align: right;
}

[data-reveal] {
    opacity: 0;
    transform: translateY(22px);
    transition: opacity 0.65s cubic-bezier(0.2, 1, 0.22, 1), transform 0.65s cubic-bezier(0.2, 1, 0.22, 1);
    transition-delay: var(--delay, 0ms);
}

[data-reveal].is-visible {
    opacity: 1;
    transform: translateY(0);
}

@media (max-width: 1080px) {
    .workflow-list {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .feature-card {
        grid-template-columns: 68px minmax(160px, 0.78fr) minmax(0, 1fr);
        gap: 12px 22px;
    }

    .feature-card::before {
        left: 68px;
    }
}

@media (max-width: 980px) {
    .section-split,
    .gallery-grid {
        grid-template-columns: 1fr;
    }

    .store-badge {
        min-width: 0;
    }

    .footer-inner {
        align-items: flex-start;
        flex-direction: column;
    }

    .tagline {
        max-width: none;
        text-align: left;
    }
}

@media (max-width: 760px) {
    .site-header {
        padding: calc(12px + env(safe-area-inset-top)) 0 12px;
    }

    .container {
        width: min(var(--max-width), calc(100% - 28px));
    }

    .nav {
        position: relative;
        justify-content: space-between;
        gap: 12px;
    }

    .nav-toggle {
        display: inline-flex;
        flex: 0 0 auto;
    }

    .nav-menu {
        position: absolute;
        top: calc(100% + 10px);
        left: 0;
        right: 0;
        z-index: 3;
        display: grid;
        gap: 14px;
        padding: 16px;
        border-radius: var(--radius-lg);
        border: 1px solid rgba(255, 255, 255, 0.08);
        background: linear-gradient(180deg, rgba(12, 18, 24, 0.98), rgba(8, 12, 16, 0.96));
        opacity: 0;
        visibility: hidden;
        pointer-events: none;
        transform: translateY(-8px);
        transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s ease;
    }

    .nav.is-menu-open .nav-menu {
        opacity: 1;
        visibility: visible;
        pointer-events: auto;
        transform: translateY(0);
    }

    .nav-links,
    .nav-actions {
        display: grid;
        gap: 10px;
    }

    .nav-links a,
    .nav-cta {
        width: 100%;
        justify-content: flex-start;
        padding: 12px 14px;
        border-radius: var(--radius-md);
    }

    .lang-switch {
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .lang-link {
        width: 100%;
        min-width: 0;
    }

    .hero {
        gap: 18px;
        padding: 22px 0 20px;
    }

    .hero-copy h1 {
        font-size: clamp(0.95rem, 3vw, 1.35rem);
    }

    .locale-en .hero-copy h1 {
        width: auto;
        max-width: 18ch;
        white-space: normal;
        text-wrap: balance;
    }

    .locale-zh .hero-copy h1 {
        max-width: none;
        font-size: clamp(0.88rem, 2.7vw, 1.2rem);
    }

    .feature-grid,
    .workflow-list {
        grid-template-columns: 1fr;
    }

    .product-intro {
        padding-top: 4px;
    }

    .product-intro-shell {
        justify-items: stretch;
        gap: 18px;
        padding: 22px 20px;
    }

    .product-intro-copy {
        width: 100%;
        margin-inline: 0;
    }

    .product-intro-heading h2 {
        max-width: none;
        font-size: clamp(1.45rem, 6.5vw, 2rem);
    }

    .locale-zh .product-intro-heading h2 {
        max-width: none;
        font-size: clamp(1.26rem, 4.8vw, 1.72rem);
    }

    .product-intro-copy p {
        font-size: 0.98rem;
        line-height: 1.75;
        text-align: left;
    }

    .features-shell {
        gap: 14px;
    }

    .feature-heading h2 {
        max-width: none;
    }

    .locale-en .feature-heading h2 {
        width: auto;
        max-width: 15ch;
        white-space: normal;
    }

    .feature-grid {
        gap: 0;
        margin-top: 0;
    }

    .feature-card {
        grid-template-columns: 54px minmax(0, 1fr);
        gap: 8px 16px;
        padding: 22px 0;
    }

    .feature-index {
        align-self: start;
        font-size: 2.1rem;
    }

    .feature-card h3 {
        font-size: 1.32rem;
    }

    .feature-card p {
        grid-column: 2;
        max-width: none;
        padding-top: 0;
    }
}

@media (max-width: 560px) {
    .workflow-shell,
    .spec-card,
    .shot {
        border-radius: var(--radius-lg);
    }

    .button,
    .nav-cta {
        width: 100%;
    }

    .carousel-dot {
        width: 8px;
        height: 8px;
    }

    .store-badge {
        display: inline-flex;
        width: auto;
        max-width: none;
        padding: 10px 12px;
        gap: 10px;
    }

    .store-badge-icon {
        padding: 8px;
        grid-template-columns: repeat(2, 10px);
    }

    .store-badge-icon span {
        width: 10px;
        height: 10px;
    }

    .store-badge-copy strong {
        font-size: 0.92rem;
    }

    .store-badge-copy span:last-child {
        font-size: 0.74rem;
    }
}

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

    *,
    *::before,
    *::after {
        animation: none !important;
        transition-duration: 0.01ms !important;
        transition-delay: 0ms !important;
    }

    [data-reveal] {
        opacity: 1;
        transform: none;
    }
}