:root {
    --bg: #050713;
    --bg-soft: #0b1026;
    --panel: rgba(17, 25, 55, 0.72);
    --panel-strong: rgba(20, 30, 72, 0.92);
    --line: rgba(118, 222, 255, 0.18);
    --text: #eef6ff;
    --muted: #aab9d8;
    --blue: #2fd7ff;
    --purple: #8e5dff;
    --pink: #ff5fd2;
    --green: #42ffd2;
    --gold: #ffd166;
    --shadow: 0 20px 70px rgba(12, 25, 80, 0.45);
    --radius-xl: 30px;
    --radius-lg: 22px;
    --radius-md: 16px;
    --container: 1180px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    min-height: 100vh;
    font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    color: var(--text);
    background:
        radial-gradient(circle at 12% 12%, rgba(47, 215, 255, 0.16), transparent 28%),
        radial-gradient(circle at 86% 7%, rgba(142, 93, 255, 0.2), transparent 25%),
        radial-gradient(circle at 50% 82%, rgba(255, 95, 210, 0.11), transparent 30%),
        linear-gradient(135deg, #040610 0%, #07102b 47%, #090615 100%);
    line-height: 1.7;
    overflow-x: hidden;
}
body::before {
    content: "";
    position: fixed;
    inset: 0;
    pointer-events: none;
    background-image:
        linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
    background-size: 48px 48px;
    mask-image: linear-gradient(to bottom, rgba(0,0,0,0.9), rgba(0,0,0,0.2));
    z-index: -2;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
.container { width: min(var(--container), calc(100% - 40px)); margin: 0 auto; }
.skip-link { position: absolute; left: -999px; top: 10px; background: var(--blue); color: #00111c; padding: 8px 12px; border-radius: 999px; z-index: 20; }
.skip-link:focus { left: 16px; }
.site-header {
    position: sticky;
    top: 0;
    z-index: 10;
    backdrop-filter: blur(18px);
    background: rgba(5, 7, 19, 0.75);
    border-bottom: 1px solid var(--line);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; min-height: 74px; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 12px; font-weight: 800; letter-spacing: 0.04em; }
.brand-mark {
    width: 40px;
    height: 40px;
    display: inline-grid;
    place-items: center;
    border-radius: 14px;
    background: linear-gradient(135deg, var(--blue), var(--purple) 54%, var(--pink));
    color: white;
    box-shadow: 0 0 28px rgba(47, 215, 255, 0.45);
}
.brand-text { font-size: 20px; }
.main-nav { display: flex; align-items: center; gap: 4px; flex-wrap: wrap; justify-content: flex-end; }
.main-nav a {
    padding: 9px 12px;
    border-radius: 999px;
    color: var(--muted);
    font-size: 14px;
    transition: 0.25s ease;
}
.main-nav a:hover, .main-nav a.active { color: var(--text); background: rgba(47, 215, 255, 0.12); box-shadow: inset 0 0 0 1px rgba(47, 215, 255, 0.2); }
.nav-toggle { display: none; width: 44px; height: 44px; border: 1px solid var(--line); border-radius: 14px; background: rgba(255,255,255,0.04); }
.nav-toggle span { display: block; width: 20px; height: 2px; background: var(--text); margin: 5px auto; }
main { position: relative; }
.hero { padding: 92px 0 54px; }
.hero-grid { display: grid; grid-template-columns: 1.04fr 0.96fr; gap: 42px; align-items: center; }
.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 13px;
    border: 1px solid rgba(47, 215, 255, 0.28);
    border-radius: 999px;
    color: var(--green);
    background: rgba(47, 215, 255, 0.08);
    font-size: 14px;
}
.eyebrow::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--green); box-shadow: 0 0 18px var(--green); }
h1, h2, h3, p { margin-top: 0; }
h1 { font-size: clamp(38px, 5.2vw, 74px); line-height: 1.06; margin: 22px 0 18px; letter-spacing: -0.04em; }
h1 .gradient, .gradient-text { background: linear-gradient(90deg, var(--blue), #fff, var(--pink)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero-lead { color: var(--muted); font-size: 18px; max-width: 680px; }
.hero-actions, .button-row { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 28px; }
.btn { display: inline-flex; align-items: center; justify-content: center; min-height: 46px; padding: 0 20px; border-radius: 999px; font-weight: 700; border: 1px solid transparent; transition: transform 0.25s ease, box-shadow 0.25s ease, background 0.25s ease; }
.btn:hover { transform: translateY(-2px); }
.btn-primary { background: linear-gradient(135deg, var(--blue), var(--purple)); color: #fff; box-shadow: 0 16px 34px rgba(47, 215, 255, 0.25); }
.btn-ghost { border-color: rgba(255,255,255,0.18); color: var(--text); background: rgba(255,255,255,0.05); }
.btn-soft { background: rgba(66,255,210,0.1); color: var(--green); border-color: rgba(66,255,210,0.28); }
.hero-card { position: relative; }
.hero-card::before { content: ""; position: absolute; inset: 8% -6% -4% 12%; background: linear-gradient(135deg, rgba(47,215,255,0.22), rgba(142,93,255,0.18)); filter: blur(48px); border-radius: 40px; z-index: -1; }
.hero-visual { border-radius: var(--radius-xl); border: 1px solid var(--line); box-shadow: var(--shadow); background: rgba(255,255,255,0.04); }
.signal-strip { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-top: 18px; }
.signal { padding: 16px; border: 1px solid var(--line); background: rgba(255,255,255,0.04); border-radius: var(--radius-md); }
.signal strong { display: block; font-size: 24px; color: var(--blue); }
.signal span { color: var(--muted); font-size: 13px; }
.section { padding: 76px 0; }
.section-tight { padding: 46px 0; }
.section-head { display: flex; align-items: end; justify-content: space-between; gap: 30px; margin-bottom: 28px; }
.section-head.center { display: block; text-align: center; max-width: 760px; margin: 0 auto 34px; }
.section-kicker { color: var(--green); font-weight: 700; letter-spacing: 0.08em; margin-bottom: 8px; }
h2 { font-size: clamp(28px, 3.4vw, 48px); line-height: 1.15; margin-bottom: 12px; }
.section-head p, .section-head.center p { color: var(--muted); margin-bottom: 0; }
.grid { display: grid; gap: 22px; }
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.card {
    position: relative;
    overflow: hidden;
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    background: linear-gradient(180deg, rgba(255,255,255,0.075), rgba(255,255,255,0.035));
    box-shadow: 0 14px 50px rgba(0, 0, 0, 0.18);
}
.card::after {
    content: "";
    position: absolute;
    inset: auto -40% -60% 20%;
    height: 150px;
    background: radial-gradient(circle, rgba(47,215,255,0.16), transparent 64%);
    pointer-events: none;
}
.card-body { padding: 24px; position: relative; z-index: 1; }
.card h3 { font-size: 22px; margin-bottom: 10px; }
.card p { color: var(--muted); margin-bottom: 0; }
.card img { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; border-bottom: 1px solid var(--line); }
.icon-pill { width: 46px; height: 46px; border-radius: 16px; display: grid; place-items: center; margin-bottom: 16px; background: rgba(47, 215, 255, 0.12); color: var(--blue); box-shadow: inset 0 0 0 1px rgba(47,215,255,0.18); }
.feature-list { list-style: none; padding: 0; margin: 18px 0 0; display: grid; gap: 10px; }
.feature-list li { display: flex; gap: 10px; color: var(--muted); }
.feature-list li::before { content: "✦"; color: var(--green); flex: 0 0 auto; }
.panel { border: 1px solid var(--line); border-radius: var(--radius-xl); background: var(--panel); box-shadow: var(--shadow); overflow: hidden; }
.panel-pad { padding: 30px; }
.split { display: grid; grid-template-columns: 0.95fr 1.05fr; gap: 30px; align-items: center; }
.tags { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 18px; }
.tag { padding: 8px 12px; border-radius: 999px; color: var(--muted); border: 1px solid rgba(255,255,255,0.15); background: rgba(255,255,255,0.04); }
.timeline { display: grid; gap: 16px; counter-reset: step; }
.timeline-item { counter-increment: step; display: grid; grid-template-columns: 54px 1fr; gap: 16px; align-items: start; padding: 18px; border: 1px solid var(--line); border-radius: var(--radius-lg); background: rgba(255,255,255,0.04); }
.timeline-item::before { content: counter(step, decimal-leading-zero); width: 54px; height: 54px; display: grid; place-items: center; border-radius: 18px; color: var(--blue); background: rgba(47,215,255,0.1); font-weight: 800; }
.timeline-item p { color: var(--muted); margin-bottom: 0; }
.notice { padding: 16px 18px; border: 1px solid rgba(255, 209, 102, 0.3); border-radius: var(--radius-md); background: rgba(255, 209, 102, 0.08); color: #ffe7ad; }
.metric-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-top: 18px; }
.metric { padding: 16px; border: 1px solid var(--line); border-radius: 18px; background: rgba(255,255,255,0.04); }
.metric b { display: block; font-size: 28px; color: var(--green); }
.metric span { color: var(--muted); font-size: 13px; }
.faq { display: grid; gap: 14px; }
.faq details { border: 1px solid var(--line); border-radius: var(--radius-md); background: rgba(255,255,255,0.04); padding: 18px 20px; }
.faq summary { cursor: pointer; font-weight: 700; }
.faq p { color: var(--muted); margin: 12px 0 0; }
.page-hero { padding: 76px 0 36px; }
.page-hero .hero-lead { max-width: 820px; }
.breadcrumb { color: var(--muted); margin-bottom: 16px; font-size: 14px; }
.breadcrumb a { color: var(--blue); }
.table-like { display: grid; gap: 12px; }
.table-row { display: grid; grid-template-columns: 180px 1fr; gap: 18px; padding: 18px; border: 1px solid var(--line); border-radius: 16px; background: rgba(255,255,255,0.04); }
.table-row strong { color: var(--blue); }
.video-card .play { position: absolute; top: 20px; right: 20px; width: 48px; height: 48px; border-radius: 50%; background: rgba(47,215,255,0.22); border: 1px solid rgba(47,215,255,0.42); display: grid; place-items: center; }
.video-card .play::before { content: ""; border-left: 13px solid white; border-top: 8px solid transparent; border-bottom: 8px solid transparent; margin-left: 4px; }
.cta-band { border-radius: var(--radius-xl); background: linear-gradient(135deg, rgba(47,215,255,0.18), rgba(142,93,255,0.18), rgba(255,95,210,0.12)); border: 1px solid var(--line); padding: 34px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.cta-band p { color: var(--muted); margin-bottom: 0; }
.form-shell { display: grid; gap: 14px; }
.form-shell label { display: grid; gap: 8px; color: var(--muted); }
.form-shell input, .form-shell textarea, .form-shell select { width: 100%; border: 1px solid var(--line); background: rgba(255,255,255,0.06); color: var(--text); border-radius: 14px; min-height: 46px; padding: 11px 14px; font: inherit; }
.form-shell textarea { min-height: 130px; resize: vertical; }
.form-shell option { color: #07102b; }
.site-footer { margin-top: 56px; border-top: 1px solid var(--line); background: rgba(3, 5, 14, 0.72); }
.footer-grid { display: grid; grid-template-columns: 1.5fr repeat(3, 1fr); gap: 28px; padding: 46px 0 32px; }
.footer-grid h3 { font-size: 16px; color: var(--blue); margin-bottom: 12px; }
.footer-grid p, .footer-grid a { color: var(--muted); font-size: 14px; }
.footer-grid a { display: block; margin: 8px 0; }
.footer-brand { margin-bottom: 14px; }
.footer-cta { color: var(--green) !important; font-weight: 700; }
.footer-bottom { display: flex; justify-content: space-between; gap: 14px; padding: 18px 0 26px; color: var(--muted); border-top: 1px solid rgba(255,255,255,0.08); font-size: 14px; }
.reveal { opacity: 0; transform: translateY(18px); transition: opacity 0.55s ease, transform 0.55s ease; }
.reveal.show { opacity: 1; transform: translateY(0); }
@media (max-width: 1020px) {
    .hero-grid, .split { grid-template-columns: 1fr; }
    .grid-4 { grid-template-columns: repeat(2, 1fr); }
    .grid-3 { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: repeat(2, 1fr); }
    .main-nav { position: fixed; left: 20px; right: 20px; top: 82px; display: none; flex-direction: column; align-items: stretch; padding: 16px; border: 1px solid var(--line); border-radius: 22px; background: rgba(7, 10, 28, 0.96); box-shadow: var(--shadow); }
    .main-nav.open { display: flex; }
    .main-nav a { padding: 12px 14px; }
    .nav-toggle { display: block; }
}
@media (max-width: 720px) {
    .container { width: min(100% - 28px, var(--container)); }
    .hero { padding-top: 58px; }
    .page-hero { padding-top: 52px; }
    .section { padding: 50px 0; }
    .grid-2, .grid-3, .grid-4, .metric-grid, .signal-strip { grid-template-columns: 1fr; }
    .section-head { display: block; }
    .table-row { grid-template-columns: 1fr; }
    .cta-band { display: block; }
    .cta-band .button-row { margin-top: 18px; }
    .footer-grid { grid-template-columns: 1fr; }
    .footer-bottom { flex-direction: column; }
    h1 { font-size: 40px; }
}