:root {
    --bg: #07111f;
    --panel: rgba(10, 24, 43, 0.72);
    --panel-strong: rgba(13, 30, 52, 0.92);
    --text: #ecf3ff;
    --muted: #8fa4bf;
    --line: rgba(255, 255, 255, 0.08);
    --cyan: #6ee7f9;
    --blue: #4f8cff;
    --gold: #ffd16d;
    --shadow: 0 24px 80px rgba(0, 0, 0, 0.32);
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: "Plus Jakarta Sans", "Noto Sans SC", sans-serif;
    color: var(--text);
    background:
        radial-gradient(circle at top left, rgba(57, 126, 255, 0.18), transparent 32%),
        radial-gradient(circle at 80% 20%, rgba(110, 231, 249, 0.16), transparent 26%),
        linear-gradient(135deg, #040811 0%, #081526 45%, #08111b 100%);
    min-height: 100vh;
}

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

.page-shell {
    position: relative;
    overflow: hidden;
    isolation: isolate;
}

.bg-grid,
.bg-orb {
    position: fixed;
    inset: 0;
    pointer-events: none;
}

.bg-grid {
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
    background-size: 40px 40px;
    mask-image: radial-gradient(circle at center, black 35%, transparent 85%);
    z-index: -3;
}

.bg-orb {
    filter: blur(80px);
    opacity: 0.5;
    z-index: -4;
}

.orb-a {
    background: radial-gradient(circle, rgba(79, 140, 255, 0.9) 0%, transparent 60%);
    transform: translate(-20%, -25%);
}

.orb-b {
    background: radial-gradient(circle, rgba(255, 209, 109, 0.55) 0%, transparent 58%);
    transform: translate(55%, 15%);
}

.site-header,
main {
    width: min(1180px, calc(100% - 32px));
    margin: 0 auto;
}

.site-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 22px 0;
    position: sticky;
    top: 0;
    z-index: 5;
    backdrop-filter: blur(16px);
}

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

.brand-mark {
    width: 42px;
    height: 42px;
    border-radius: 14px;
    display: grid;
    place-items: center;
    color: #06111d;
    font-weight: 800;
    background: linear-gradient(135deg, var(--cyan), #ffffff 45%, var(--gold));
    box-shadow: 0 12px 30px rgba(110, 231, 249, 0.28);
}

.brand-text {
    display: grid;
    gap: 2px;
}

.brand-text strong {
    font-size: 16px;
    letter-spacing: 0.04em;
}

.brand-text small {
    color: var(--muted);
    font-size: 12px;
}

.nav-links {
    display: inline-flex;
    gap: 20px;
    color: #c8d5e7;
    font-size: 14px;
}

.nav-links a {
    position: relative;
}

.nav-links a::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -6px;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, var(--cyan), transparent);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 220ms ease;
}

.nav-links a:hover::after {
    transform: scaleX(1);
}

.hero {
    display: grid;
    grid-template-columns: 1.12fr 0.88fr;
    gap: 36px;
    padding: 70px 0 42px;
    align-items: center;
}

.eyebrow {
    margin: 0 0 14px;
    text-transform: uppercase;
    letter-spacing: 0.24em;
    color: var(--gold);
    font-size: 12px;
    font-weight: 700;
}

.hero h1,
.section-heading h2,
.spotlight h2,
.contact-card h2 {
    margin: 0;
    line-height: 1.08;
}

.hero h1 {
    font-size: clamp(40px, 6vw, 74px);
    max-width: 680px;
}

.hero-text,
.spotlight p,
.contact-card p,
.feature-card p,
.timeline-grid p,
.mini-panel span,
.muted {
    color: var(--muted);
}

.hero-text {
    font-size: 17px;
    line-height: 1.9;
    max-width: 640px;
    margin: 22px 0 28px;
}

.hero-actions,
.contact-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
}

.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 160px;
    padding: 14px 20px;
    border-radius: 999px;
    font-weight: 700;
    transition: transform 220ms ease, box-shadow 220ms ease, background 220ms ease;
}

.button:hover {
    transform: translateY(-2px);
}

.button.primary {
    color: #05101c;
    background: linear-gradient(135deg, var(--gold), #fff1ba 54%, var(--cyan));
    box-shadow: 0 18px 40px rgba(255, 209, 109, 0.22);
}

.button.ghost {
    border: 1px solid var(--line);
    background: rgba(255, 255, 255, 0.02);
}

.hero-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 28px;
}

.hero-tags span,
.feature-index {
    border: 1px solid rgba(255, 255, 255, 0.08);
    background: rgba(255, 255, 255, 0.04);
}

.hero-tags span {
    padding: 10px 14px;
    border-radius: 999px;
    color: #dce7f8;
    font-size: 13px;
}

.glass-card,
.feature-card,
.mini-panel,
.contact-card,
.timeline-grid article {
    border: 1px solid var(--line);
    background: var(--panel);
    backdrop-filter: blur(18px);
    box-shadow: var(--shadow);
}

.hero-panel {
    display: grid;
    gap: 18px;
}

.status-card,
.floating-note {
    border-radius: 28px;
    padding: 28px;
}

.card-topline {
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: #d9e7f8;
    margin-bottom: 24px;
}

.status-live {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--cyan);
    font-size: 12px;
    font-weight: 700;
}

.status-live i {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: currentColor;
    box-shadow: 0 0 16px currentColor;
}

.metric-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    margin-bottom: 18px;
}

.metric-grid article {
    padding: 18px;
    border-radius: 20px;
    background: rgba(255, 255, 255, 0.04);
}

.metric-grid strong {
    display: block;
    font-size: 22px;
    margin-bottom: 6px;
}

.metric-grid span {
    color: var(--muted);
    font-size: 13px;
}

.floating-note ul {
    margin: 14px 0 0;
    padding-left: 18px;
    color: #dce7f8;
    line-height: 1.9;
}

.feature-band,
.spotlight,
.timeline,
.contact {
    padding: 44px 0;
}

.section-heading {
    margin-bottom: 24px;
}

.section-heading h2,
.spotlight h2,
.contact-card h2 {
    font-size: clamp(30px, 4vw, 48px);
}

.feature-grid,
.timeline-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
}

.feature-card,
.timeline-grid article,
.mini-panel {
    border-radius: 26px;
    padding: 26px;
}

.feature-index {
    display: inline-flex;
    padding: 7px 12px;
    border-radius: 999px;
    color: var(--gold);
    margin-bottom: 18px;
    font-size: 13px;
    font-weight: 700;
}

.feature-card h3 {
    margin: 0 0 10px;
    font-size: 22px;
}

.feature-card p,
.timeline-grid p,
.spotlight p,
.contact-card p {
    margin: 0;
    line-height: 1.85;
}

.spotlight {
    display: grid;
    grid-template-columns: 1.05fr 0.95fr;
    gap: 20px;
    align-items: stretch;
}

.spotlight-copy,
.spotlight-stack {
    display: grid;
    gap: 18px;
}

.spotlight-copy {
    padding: 8px 0;
}

.spotlight p {
    margin-top: 18px;
    max-width: 680px;
}

.mini-panel {
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.07), rgba(9, 23, 41, 0.88));
}

.mini-panel strong {
    display: block;
    margin-bottom: 8px;
    font-size: 20px;
}

.timeline-grid article strong {
    display: block;
    margin-bottom: 12px;
    font-size: 20px;
}

.contact {
    padding-bottom: 84px;
}

.contact-card {
    border-radius: 34px;
    padding: 34px;
    background:
        radial-gradient(circle at top right, rgba(110, 231, 249, 0.12), transparent 24%),
        linear-gradient(135deg, rgba(19, 39, 64, 0.98), rgba(10, 21, 38, 0.96));
}

.contact-layout {
    display: grid;
    grid-template-columns: 1.08fr 0.92fr;
    gap: 24px;
    align-items: center;
}

.contact-copy {
    min-width: 0;
}

.contact-card p {
    max-width: 720px;
    margin: 18px 0 0;
}

.wechat-card {
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 28px;
    padding: 22px;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.1), rgba(8, 19, 34, 0.9));
    box-shadow: var(--shadow);
    text-align: center;
}

.wechat-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 8px 14px;
    border-radius: 999px;
    color: #07111f;
    background: linear-gradient(135deg, var(--cyan), #ffffff);
    font-size: 12px;
    font-weight: 800;
    letter-spacing: 0.08em;
}

.wechat-qr {
    display: block;
    width: min(100%, 320px);
    margin: 18px auto 0;
    border-radius: 22px;
    background: #ffffff;
    padding: 10px;
    box-shadow: 0 18px 40px rgba(0, 0, 0, 0.26);
}

.wechat-card h3 {
    margin: 18px 0 8px;
    font-size: 24px;
}

.wechat-card p {
    max-width: none;
    margin: 0;
}

.contact-actions {
    margin-top: 26px;
}

.reveal {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 700ms ease, transform 700ms ease;
}

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

@media (max-width: 980px) {
    .hero,
    .spotlight,
    .feature-grid,
    .timeline-grid,
    .contact-layout {
        grid-template-columns: 1fr;
    }

    .hero {
        padding-top: 34px;
    }

    .site-header {
        width: min(1180px, calc(100% - 24px));
        flex-direction: column;
        gap: 16px;
        align-items: flex-start;
    }

    main {
        width: min(1180px, calc(100% - 24px));
    }
}

@media (max-width: 640px) {
    .hero h1 {
        font-size: 38px;
    }

    .status-card,
    .floating-note,
    .feature-card,
    .timeline-grid article,
    .mini-panel,
    .contact-card {
        padding: 22px;
        border-radius: 22px;
    }

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

    .nav-links {
        flex-wrap: wrap;
        gap: 14px;
    }
}