:root {
    color-scheme: dark;
    --page-bg: #101114;
    --panel-bg: rgba(29, 30, 35, 0.72);
    --panel-border: rgba(255, 255, 255, 0.11);
    --text-main: #f5f5f7;
    --text-muted: #aaaab2;
    --text-faint: #7d7d86;
    --sunny-orange: #ff9f0a;
    --sunny-orange-hover: #ffb340;
    --sunny-blue: #0a84ff;
    --sunny-green: #3cae4e;
    --sunny-purple: #bf5af2;
    --card-radius: 16px;
    --page-gutter: clamp(20px, 5vw, 72px);
}

* {
    box-sizing: border-box;
}

html {
    min-width: 320px;
    background: var(--page-bg);
}

body {
    min-height: 100svh;
    margin: 0;
    overflow-x: hidden;
    color: var(--text-main);
    background:
        radial-gradient(circle at 76% 43%, rgba(191, 90, 242, 0.08), transparent 24rem),
        linear-gradient(155deg, #15161a 0%, var(--page-bg) 46%, #0d0f13 100%);
    font-family: -apple-system, BlinkMacSystemFont, "PingFang TC", "Noto Sans TC", "Microsoft JhengHei", sans-serif;
    -webkit-font-smoothing: antialiased;
}

body::before {
    position: fixed;
    inset: 0;
    z-index: -1;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.018) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.018) 1px, transparent 1px);
    background-size: 56px 56px;
    content: "";
    mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.6), transparent 82%);
}

.page-glow {
    position: fixed;
    z-index: -1;
    width: 34rem;
    height: 34rem;
    border-radius: 50%;
    pointer-events: none;
    filter: blur(96px);
    opacity: 0.13;
}

.page-glow-orange {
    top: -18rem;
    left: -15rem;
    background: var(--sunny-orange);
}

.page-glow-blue {
    right: -18rem;
    bottom: -22rem;
    background: var(--sunny-blue);
}

.page-shell {
    display: grid;
    width: min(100%, 1440px);
    min-height: 100svh;
    margin: 0 auto;
    padding: 0 var(--page-gutter);
    grid-template-rows: auto 1fr auto;
}

.site-header {
    display: flex;
    min-height: 88px;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    color: var(--text-main);
    font-size: 17px;
    font-weight: 700;
    letter-spacing: 0.03em;
    text-decoration: none;
}

.brand img {
    width: 38px;
    height: 38px;
    object-fit: contain;
}

.brand:focus-visible {
    outline: 2px solid var(--sunny-orange);
    outline-offset: 6px;
    border-radius: 8px;
}

.site-status {
    display: inline-flex;
    min-height: 32px;
    margin: 0;
    padding: 6px 12px;
    align-items: center;
    gap: 8px;
    border: 1px solid rgba(255, 159, 10, 0.26);
    border-radius: 999px;
    color: #dedee4;
    background: rgba(255, 159, 10, 0.07);
    font-size: 13px;
    font-weight: 650;
    letter-spacing: 0.05em;
}

.site-status span {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--sunny-orange);
    box-shadow: 0 0 12px rgba(255, 159, 10, 0.56);
}

main {
    display: grid;
    align-items: center;
}

.hero {
    display: grid;
    padding: clamp(48px, 8vh, 92px) 0;
    align-items: center;
    gap: clamp(48px, 7vw, 104px);
    grid-template-columns: minmax(0, 1.08fr) minmax(340px, 0.92fr);
}

.hero-copy {
    max-width: 680px;
}

.eyebrow {
    margin: 0 0 16px;
    color: var(--sunny-orange);
    font-size: 14px;
    font-weight: 750;
    letter-spacing: 0.18em;
}

h1 {
    margin: 0;
    font-size: clamp(44px, 5.4vw, 78px);
    font-weight: 760;
    letter-spacing: -0.055em;
    line-height: 1.08;
}

h1 span {
    background: linear-gradient(90deg, #ffffff 0%, #dedee7 58%, #aeb0bc 100%);
    background-clip: text;
    color: transparent;
    -webkit-background-clip: text;
}

.hero-description {
    max-width: 590px;
    margin: 24px 0 0;
    color: var(--text-muted);
    font-size: clamp(17px, 1.45vw, 20px);
    letter-spacing: 0.01em;
    line-height: 1.85;
}

.launch-block {
    display: flex;
    width: fit-content;
    margin-top: 32px;
    align-items: end;
    gap: 16px;
}

.launch-label {
    margin: 0 0 9px;
    color: var(--text-faint);
    font-size: 13px;
    font-weight: 650;
    letter-spacing: 0.06em;
}

.launch-year {
    display: flex;
    margin: 0;
    align-items: baseline;
    gap: 6px;
    color: var(--sunny-orange);
    line-height: 1;
}

.launch-year time {
    font-family: ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
    font-size: 42px;
    font-weight: 760;
    letter-spacing: -0.055em;
}

.launch-year span {
    font-size: 16px;
    font-weight: 700;
}

.platform-list {
    display: grid;
    max-width: 510px;
    margin-top: 28px;
    gap: 12px;
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.platform-card {
    display: flex;
    min-height: 58px;
    padding: 12px 16px;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    border: 1px solid var(--panel-border);
    border-radius: 12px;
    background: var(--panel-bg);
    box-shadow: inset 0 1px rgba(255, 255, 255, 0.035);
}

.platform-name {
    color: #f0f0f3;
    font-size: 16px;
    font-weight: 700;
}

.platform-state {
    color: var(--text-faint);
    font-size: 13px;
    font-weight: 600;
}

.purchase-note {
    display: grid;
    max-width: 510px;
    margin: 16px 0 0;
    padding: 16px;
    gap: 6px;
    border-left: 2px solid rgba(255, 159, 10, 0.74);
    color: var(--text-muted);
    background: linear-gradient(90deg, rgba(255, 159, 10, 0.07), transparent 92%);
    font-size: 14px;
    line-height: 1.65;
}

.purchase-note strong {
    color: #e7e7eb;
    font-size: 15px;
}

.hero-visual {
    position: relative;
    display: grid;
    min-height: 510px;
    place-items: center;
    isolation: isolate;
}

.hero-visual::before {
    position: absolute;
    z-index: -3;
    width: min(90%, 440px);
    aspect-ratio: 1;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(255, 159, 10, 0.16), rgba(191, 90, 242, 0.06) 44%, transparent 70%);
    content: "";
    filter: blur(22px);
}

.orbit {
    position: absolute;
    z-index: -1;
    border: 1px solid rgba(255, 255, 255, 0.11);
    border-radius: 50%;
}

.orbit::after {
    position: absolute;
    top: -4px;
    left: 50%;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--sunny-blue);
    box-shadow: 0 0 18px rgba(10, 132, 255, 0.7);
    content: "";
}

.orbit-outer {
    width: min(95%, 470px);
    aspect-ratio: 1;
    transform: rotate(-18deg);
}

.orbit-inner {
    width: min(70%, 350px);
    aspect-ratio: 1;
    border-color: rgba(255, 159, 10, 0.18);
    transform: rotate(38deg);
}

.orbit-inner::after {
    background: var(--sunny-green);
    box-shadow: 0 0 18px rgba(60, 174, 78, 0.64);
}

.icon-halo {
    position: absolute;
    z-index: -1;
    width: 270px;
    height: 270px;
    border-radius: 50%;
    background: conic-gradient(from 210deg, rgba(255, 159, 10, 0.4), rgba(60, 174, 78, 0.34), rgba(10, 132, 255, 0.42), rgba(191, 90, 242, 0.42), rgba(255, 159, 10, 0.4));
    filter: blur(42px);
    opacity: 0.34;
}

.app-icon-card {
    display: grid;
    width: min(64%, 300px);
    aspect-ratio: 1;
    place-items: center;
    border: 1px solid rgba(255, 255, 255, 0.14);
    border-radius: 28%;
    background: linear-gradient(145deg, rgba(40, 41, 47, 0.78), rgba(19, 20, 24, 0.9));
    box-shadow:
        0 32px 70px rgba(0, 0, 0, 0.38),
        inset 0 1px rgba(255, 255, 255, 0.08);
    animation: icon-float 7s ease-in-out infinite;
}

.app-icon-card img {
    width: 88%;
    height: 88%;
    object-fit: contain;
}

.visual-caption {
    position: absolute;
    bottom: 58px;
    display: inline-flex;
    margin: 0;
    align-items: center;
    gap: 10px;
    color: var(--text-faint);
    font-family: ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.16em;
}

.visual-caption span {
    width: 28px;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--sunny-orange));
}

footer {
    display: flex;
    min-height: 72px;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    color: #707079;
    font-size: 12px;
    letter-spacing: 0.04em;
}

footer p {
    margin: 0;
}

@keyframes icon-float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

@media (max-width: 920px) {
    .hero {
        padding: 56px 0 64px;
        gap: 40px;
        grid-template-columns: 1fr;
    }

    .hero-copy {
        max-width: 720px;
    }

    .hero-visual {
        min-height: 390px;
    }

    .orbit-outer {
        width: min(82vw, 410px);
    }

    .orbit-inner {
        width: min(60vw, 300px);
    }

    .app-icon-card {
        width: min(52vw, 250px);
    }

    .visual-caption {
        bottom: 24px;
    }
}

@media (max-width: 600px) {
    .site-header {
        min-height: 78px;
    }

    .brand {
        font-size: 15px;
    }

    .brand img {
        width: 34px;
        height: 34px;
    }

    .site-status {
        padding: 6px 10px;
        font-size: 12px;
        letter-spacing: 0.02em;
    }

    .site-status span {
        display: none;
    }

    h1 {
        font-size: clamp(38px, 12vw, 54px);
        letter-spacing: -0.05em;
    }

    .hero-description {
        margin-top: 20px;
        font-size: 16px;
        line-height: 1.75;
    }

    .launch-block {
        margin-top: 28px;
    }

    .platform-list {
        grid-template-columns: 1fr;
    }

    .hero-visual {
        min-height: 330px;
    }

    .orbit-outer {
        width: min(88vw, 340px);
    }

    .orbit-inner {
        width: min(64vw, 250px);
    }

    .app-icon-card {
        width: min(56vw, 210px);
    }

    .visual-caption {
        bottom: 12px;
    }

    footer {
        padding: 20px 0;
        align-items: flex-start;
        flex-direction: column;
        gap: 8px;
    }
}

@media (max-width: 390px) {
    .site-header {
        align-items: flex-start;
        padding: 16px 0;
        flex-direction: column;
        gap: 12px;
    }

    .hero {
        padding-top: 40px;
    }

    .orbit-outer {
        width: min(70vw, 280px);
    }

    .orbit-inner {
        width: min(52vw, 210px);
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        scroll-behavior: auto !important;
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}