:root {
    --bg: #050711;
    --panel: rgba(14, 20, 43, 0.82);
    --panel-strong: rgba(18, 27, 60, 0.94);
    --line: rgba(108, 151, 255, 0.22);
    --text: #f5f8ff;
    --muted: #a9b5d8;
    --soft: #7783ac;
    --cyan: #35e5ff;
    --blue: #4387ff;
    --purple: #9c5cff;
    --pink: #ff66c4;
    --green: #5affbf;
    --radius: 24px;
    --shadow: 0 20px 80px rgba(0, 0, 0, 0.45);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    min-height: 100vh;
    color: var(--text);
    background:
        radial-gradient(circle at 20% 0%, rgba(67, 135, 255, 0.18), transparent 28rem),
        radial-gradient(circle at 90% 10%, rgba(156, 92, 255, 0.2), transparent 30rem),
        radial-gradient(circle at 70% 75%, rgba(53, 229, 255, 0.1), transparent 28rem),
        linear-gradient(180deg, #050711 0%, #07101f 52%, #050711 100%);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;
    line-height: 1.75;
    overflow-x: hidden;
}
body::before {
    content: "";
    position: fixed;
    inset: 0;
    pointer-events: none;
    background-image:
        linear-gradient(rgba(255,255,255,0.035) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.035) 1px, transparent 1px);
    background-size: 48px 48px;
    mask-image: linear-gradient(180deg, rgba(0,0,0,0.8), transparent 84%);
    z-index: -2;
}
body::after {
    content: "";
    position: fixed;
    inset: -30%;
    z-index: -3;
    pointer-events: none;
    opacity: 0.48;
    background: conic-gradient(from 140deg, transparent, rgba(53,229,255,0.18), transparent, rgba(156,92,255,0.16), transparent);
    animation: slow-spin 28s linear infinite;
}
@keyframes slow-spin { to { transform: rotate(360deg); } }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; height: auto; display: block; }
.site-header {
    position: sticky;
    top: 0;
    z-index: 50;
    backdrop-filter: blur(18px);
    background: rgba(5, 7, 17, 0.78);
    border-bottom: 1px solid var(--line);
}
.nav-wrap {
    width: min(1200px, calc(100% - 32px));
    margin: 0 auto;
    min-height: 74px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}
.brand { display: inline-flex; align-items: center; gap: 12px; font-weight: 800; letter-spacing: .04em; }
.brand-orb {
    width: 34px; height: 34px; border-radius: 50%;
    background: radial-gradient(circle at 32% 32%, #fff, var(--cyan) 25%, var(--blue) 52%, var(--purple));
    box-shadow: 0 0 28px rgba(53,229,255,0.55), inset 0 0 16px rgba(255,255,255,0.3);
}
.brand-text { font-size: 1.18rem; }
.site-nav { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; justify-content: flex-end; }
.site-nav a {
    color: var(--muted);
    padding: 8px 12px;
    border-radius: 999px;
    font-size: .95rem;
    transition: color .2s, background .2s, box-shadow .2s;
}
.site-nav a:hover, .site-nav a.active {
    color: #fff;
    background: rgba(67,135,255,0.16);
    box-shadow: inset 0 0 0 1px rgba(53,229,255,0.22);
}
.nav-toggle { display: none; width: 44px; height: 40px; border: 0; border-radius: 12px; background: rgba(255,255,255,0.08); }
.nav-toggle span { display: block; height: 2px; width: 20px; margin: 5px auto; background: #fff; border-radius: 8px; }
main { width: min(1200px, calc(100% - 32px)); margin: 0 auto; }
.hero {
    min-height: 650px;
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(340px, 0.9fr);
    gap: 44px;
    align-items: center;
    padding: 76px 0 58px;
}
.hero-copy { position: relative; }
.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    margin: 0 0 18px;
    color: var(--cyan);
    font-weight: 700;
    letter-spacing: .08em;
    text-transform: uppercase;
}
.eyebrow::before { content: ""; width: 26px; height: 2px; background: linear-gradient(90deg, var(--cyan), var(--purple)); border-radius: 99px; }
h1, h2, h3 { line-height: 1.18; margin: 0; }
h1 { font-size: clamp(2.35rem, 5.4vw, 5.2rem); letter-spacing: -0.06em; }
h2 { font-size: clamp(1.9rem, 3.6vw, 3.1rem); letter-spacing: -0.04em; }
h3 { font-size: 1.2rem; }
.lead { color: var(--muted); font-size: clamp(1rem, 1.6vw, 1.2rem); max-width: 750px; margin: 22px 0 0; }
.gradient-text { background: linear-gradient(90deg, #fff 0%, var(--cyan) 42%, #d3b4ff 72%, #fff 100%); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 34px; }
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    min-height: 48px;
    padding: 0 22px;
    border-radius: 999px;
    border: 1px solid rgba(255,255,255,0.16);
    color: #fff;
    background: rgba(255,255,255,0.08);
    box-shadow: 0 12px 34px rgba(0,0,0,0.2);
    transition: transform .2s, border-color .2s, background .2s;
}
.btn.primary { background: linear-gradient(110deg, var(--blue), var(--purple)); border-color: transparent; }
.btn:hover { transform: translateY(-2px); border-color: rgba(53,229,255,0.5); }
.hero-visual { position: relative; }
.hero-visual::before {
    content: ""; position: absolute; inset: 8%; border-radius: 38px;
    background: linear-gradient(135deg, rgba(53,229,255,0.22), rgba(156,92,255,0.16)); filter: blur(42px); z-index: -1;
}
.glass {
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    overflow: hidden;
}
.hero-card { padding: 16px; transform: perspective(900px) rotateY(-4deg) rotateX(2deg); }
.hero-card img { border-radius: 18px; }
.metrics {
    display: grid;
    grid-template-columns: repeat(4, minmax(0,1fr));
    gap: 14px;
    margin-top: 34px;
}
.metric {
    padding: 18px;
    border-radius: 20px;
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.11);
}
.metric strong { display: block; font-size: clamp(1.45rem, 2.4vw, 2.2rem); line-height: 1; color: #fff; }
.metric span { display: block; margin-top: 8px; color: var(--soft); font-size: .92rem; }
.section { padding: 72px 0; }
.section-head { display: flex; align-items: end; justify-content: space-between; gap: 24px; margin-bottom: 30px; }
.section-head p { max-width: 660px; color: var(--muted); margin: 12px 0 0; }
.grid { display: grid; gap: 20px; }
.grid.two { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid.three { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid.four { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.card {
    position: relative;
    padding: 24px;
    border-radius: var(--radius);
    background: linear-gradient(180deg, rgba(255,255,255,0.08), rgba(255,255,255,0.035));
    border: 1px solid var(--line);
    overflow: hidden;
}
.card::after {
    content: ""; position: absolute; inset: auto 20px 0; height: 1px;
    background: linear-gradient(90deg, transparent, rgba(53,229,255,0.8), transparent);
    opacity: .6;
}
.card p { color: var(--muted); margin: 12px 0 0; }
.card ul { padding-left: 18px; margin: 14px 0 0; color: var(--muted); }
.card li + li { margin-top: 7px; }
.card-img { margin: -6px -6px 18px; border-radius: 18px; overflow: hidden; border: 1px solid rgba(255,255,255,0.08); }
.tag-row { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 18px; }
.tag {
    color: #dff9ff;
    border: 1px solid rgba(53,229,255,0.28);
    background: rgba(53,229,255,0.08);
    border-radius: 999px;
    padding: 6px 10px;
    font-size: .88rem;
}
.feature-band {
    display: grid;
    grid-template-columns: .9fr 1.1fr;
    gap: 28px;
    align-items: center;
    padding: 30px;
    border-radius: 30px;
    background: linear-gradient(135deg, rgba(67,135,255,0.13), rgba(156,92,255,0.08));
    border: 1px solid var(--line);
}
.feature-band img { border-radius: 22px; border: 1px solid rgba(255,255,255,0.12); }
.timeline { counter-reset: step; display: grid; gap: 14px; }
.timeline-item {
    counter-increment: step;
    display: grid;
    grid-template-columns: 54px 1fr;
    gap: 16px;
    align-items: start;
    padding: 18px;
    border-radius: 20px;
    background: rgba(255,255,255,0.055);
    border: 1px solid rgba(255,255,255,0.1);
}
.timeline-item::before {
    content: counter(step, decimal-leading-zero);
    display: grid; place-items: center;
    width: 44px; height: 44px; border-radius: 16px;
    background: linear-gradient(135deg, var(--cyan), var(--purple));
    color: #030511; font-weight: 900;
}
.timeline-item p { margin: 8px 0 0; color: var(--muted); }
.video-card { padding: 14px; }
.video-thumb { position: relative; border-radius: 18px; overflow: hidden; }
.play {
    position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%);
    width: 58px; height: 58px; border-radius: 50%;
    background: rgba(255,255,255,0.16); backdrop-filter: blur(8px);
    border: 1px solid rgba(255,255,255,0.24);
}
.play::before { content: ""; position: absolute; left: 23px; top: 18px; border-left: 18px solid #fff; border-top: 11px solid transparent; border-bottom: 11px solid transparent; }
.video-card h3 { padding: 18px 10px 0; }
.video-card p { padding: 0 10px 8px; }
.faq { display: grid; gap: 14px; }
details {
    border: 1px solid var(--line);
    border-radius: 18px;
    background: rgba(255,255,255,0.055);
    padding: 18px 20px;
}
summary { cursor: pointer; font-weight: 700; color: #fff; }
details p { color: var(--muted); margin: 12px 0 0; }
.cta {
    padding: 42px;
    border-radius: 34px;
    background:
        radial-gradient(circle at 18% 18%, rgba(53,229,255,0.28), transparent 24rem),
        linear-gradient(135deg, rgba(67,135,255,0.18), rgba(156,92,255,0.14));
    border: 1px solid rgba(53,229,255,0.28);
    display: grid;
    grid-template-columns: minmax(0,1fr) auto;
    gap: 24px;
    align-items: center;
}
.cta p { color: var(--muted); max-width: 760px; }
.sub-hero { padding: 74px 0 36px; }
.sub-hero .lead { max-width: 860px; }
.kpi-strip {
    display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 18px; margin-top: 28px;
}
.kpi-strip .metric { background: rgba(67,135,255,0.1); }
.table-like { overflow: hidden; border-radius: 22px; border: 1px solid var(--line); }
.table-row { display: grid; grid-template-columns: 1fr 1.25fr 1fr; gap: 14px; padding: 16px 18px; background: rgba(255,255,255,0.045); }
.table-row:nth-child(even) { background: rgba(255,255,255,0.075); }
.table-row strong { color: #fff; }
.table-row span, .table-row p { color: var(--muted); margin: 0; }
.form-card label { display: block; margin-bottom: 14px; color: var(--muted); }
.input, textarea {
    width: 100%;
    margin-top: 7px;
    padding: 13px 14px;
    border-radius: 14px;
    border: 1px solid rgba(255,255,255,0.14);
    background: rgba(255,255,255,0.07);
    color: #fff;
    font: inherit;
}
textarea { min-height: 132px; resize: vertical; }
.notice { color: var(--soft); font-size: .92rem; }
.site-footer {
    margin-top: 72px;
    border-top: 1px solid var(--line);
    background: rgba(3,5,13,0.75);
}
.footer-grid {
    width: min(1200px, calc(100% - 32px));
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1.3fr .8fr .8fr;
    gap: 32px;
    padding: 42px 0;
}
.footer-grid p { color: var(--muted); }
.footer-links { display: grid; gap: 10px; color: var(--muted); }
.footer-links strong { color: #fff; }
.footer-links a:hover { color: var(--cyan); }
.footer-bottom {
    width: min(1200px, calc(100% - 32px));
    margin: 0 auto;
    padding: 18px 0 24px;
    display: flex;
    justify-content: space-between;
    gap: 18px;
    color: var(--soft);
    border-top: 1px solid rgba(255,255,255,0.08);
    flex-wrap: wrap;
}
.reveal { opacity: 0; transform: translateY(18px); transition: opacity .5s ease, transform .5s ease; }
.reveal.in { opacity: 1; transform: none; }
@media (max-width: 980px) {
    .hero, .feature-band, .cta { grid-template-columns: 1fr; }
    .grid.three, .grid.four, .metrics, .kpi-strip { grid-template-columns: repeat(2, minmax(0,1fr)); }
    .section-head { display: block; }
    .site-nav { display: none; position: absolute; left: 16px; right: 16px; top: 68px; padding: 14px; border-radius: 20px; background: rgba(7, 12, 28, 0.96); border: 1px solid var(--line); }
    .site-nav.open { display: grid; grid-template-columns: repeat(2, 1fr); }
    .nav-toggle { display: block; }
}
@media (max-width: 680px) {
    main, .nav-wrap, .footer-grid, .footer-bottom { width: min(100% - 24px, 1200px); }
    .hero { padding-top: 48px; min-height: auto; }
    .grid.two, .grid.three, .grid.four, .metrics, .kpi-strip, .footer-grid { grid-template-columns: 1fr; }
    .table-row { grid-template-columns: 1fr; }
    .card, .cta { padding: 20px; }
    .site-nav.open { grid-template-columns: 1fr; }
}
@media (prefers-reduced-motion: reduce) {
    * { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
}