:root {
    --bg: #050713;
    --bg-soft: #0b1024;
    --panel: rgba(16, 24, 52, .82);
    --panel-strong: rgba(22, 31, 68, .94);
    --line: rgba(119, 211, 255, .18);
    --text: #eef6ff;
    --muted: #a9b7d0;
    --blue: #41d8ff;
    --purple: #a760ff;
    --pink: #ff78d2;
    --green: #67ffd2;
    --shadow: 0 30px 90px rgba(0, 0, 0, .35);
    --radius-xl: 28px;
    --radius: 18px;
    --max: 1200px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", Arial, sans-serif;
    color: var(--text);
    background:
        radial-gradient(circle at 10% 5%, rgba(65, 216, 255, .20), transparent 28%),
        radial-gradient(circle at 90% 0%, rgba(167, 96, 255, .25), transparent 30%),
        linear-gradient(180deg, #040511 0%, #070b19 45%, #050713 100%);
    line-height: 1.7;
    overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
.container { width: min(calc(100% - 32px), var(--max)); margin: 0 auto; }
.site-header {
    position: sticky;
    top: 0;
    z-index: 50;
    backdrop-filter: blur(18px);
    background: rgba(5, 7, 19, .72);
    border-bottom: 1px solid var(--line);
}
.nav-wrap { min-height: 78px; display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.brand { display: inline-flex; align-items: center; gap: 12px; }
.brand-mark {
    width: 46px;
    height: 46px;
    border-radius: 16px;
    display: grid;
    place-items: center;
    color: #fff;
    font-weight: 900;
    background: linear-gradient(135deg, var(--pink), var(--purple) 45%, var(--blue));
    box-shadow: 0 0 28px rgba(65, 216, 255, .35);
}
.brand strong { display: block; font-size: 20px; letter-spacing: .04em; }
.brand em { display: block; color: var(--muted); font-style: normal; font-size: 12px; margin-top: -4px; }
.site-nav { display: flex; align-items: center; gap: 4px; }
.site-nav a {
    padding: 10px 13px;
    color: #c9d6ed;
    border-radius: 999px;
    font-size: 14px;
    transition: .2s ease;
}
.site-nav a:hover, .site-nav a.active { color: #fff; background: rgba(65, 216, 255, .12); box-shadow: inset 0 0 0 1px rgba(65, 216, 255, .18); }
.nav-toggle { display: none; width: 44px; height: 44px; border: 1px solid var(--line); border-radius: 14px; background: rgba(255,255,255,.04); }
.nav-toggle span { display: block; width: 20px; height: 2px; margin: 5px auto; background: var(--text); }
.hero { position: relative; padding: 86px 0 70px; overflow: hidden; }
.hero:before {
    content: "";
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(65,216,255,.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(65,216,255,.05) 1px, transparent 1px);
    background-size: 44px 44px;
    mask-image: linear-gradient(to bottom, black, transparent 80%);
    pointer-events: none;
}
.hero-grid { position: relative; display: grid; grid-template-columns: 1.02fr .98fr; gap: 48px; align-items: center; }
.kicker { color: var(--green); letter-spacing: .12em; font-size: 13px; font-weight: 700; text-transform: uppercase; margin-bottom: 14px; }
h1, .page-title { font-size: clamp(36px, 5vw, 72px); line-height: 1.04; margin: 0 0 24px; letter-spacing: -.04em; }
.gradient-text { background: linear-gradient(110deg, #fff, var(--blue), var(--purple), var(--pink)); -webkit-background-clip: text; color: transparent; }
.lead { font-size: 18px; color: #c8d6ef; max-width: 760px; margin: 0 0 28px; }
.hero-actions, .actions { display: flex; gap: 14px; flex-wrap: wrap; align-items: center; }
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 46px;
    padding: 0 20px;
    border-radius: 999px;
    border: 1px solid rgba(65,216,255,.32);
    background: rgba(65,216,255,.08);
    color: #eafaff;
    font-weight: 700;
    transition: transform .2s ease, border-color .2s ease, background .2s ease;
}
.btn:hover { transform: translateY(-2px); border-color: rgba(65,216,255,.7); background: rgba(65,216,255,.16); }
.btn.primary { border: 0; background: linear-gradient(135deg, var(--blue), var(--purple)); color: #fff; box-shadow: 0 14px 36px rgba(65,216,255,.28); }
.btn.ghost { background: transparent; }
.hero-card { position: relative; border: 1px solid var(--line); background: linear-gradient(160deg, rgba(19,28,62,.86), rgba(7,10,27,.88)); border-radius: var(--radius-xl); padding: 18px; box-shadow: var(--shadow); }
.hero-card:after { content: ""; position: absolute; inset: -1px; border-radius: var(--radius-xl); background: linear-gradient(135deg, rgba(65,216,255,.45), transparent, rgba(255,120,210,.32)); z-index: -1; filter: blur(18px); opacity: .65; }
.stats-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-top: 18px; }
.stat { border: 1px solid var(--line); background: rgba(255,255,255,.04); border-radius: 18px; padding: 14px; }
.stat strong { display: block; color: #fff; font-size: 24px; }
.stat span { color: var(--muted); font-size: 13px; }
.section { padding: 76px 0; position: relative; }
.section.compact { padding: 52px 0; }
.section-head { display: flex; align-items: end; justify-content: space-between; gap: 26px; margin-bottom: 30px; }
.section-head.center { display: block; text-align: center; max-width: 820px; margin: 0 auto 34px; }
h2 { font-size: clamp(28px, 3.4vw, 46px); line-height: 1.14; letter-spacing: -.03em; margin: 0 0 12px; }
h3 { margin: 0 0 10px; font-size: 22px; line-height: 1.3; }
p { color: var(--muted); margin: 0 0 16px; }
.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;
    border: 1px solid var(--line);
    background: linear-gradient(180deg, rgba(18, 26, 58, .84), rgba(9, 13, 31, .86));
    border-radius: var(--radius);
    padding: 24px;
    overflow: hidden;
    min-height: 100%;
}
.card:before {
    content: "";
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at top right, rgba(65,216,255,.18), transparent 35%);
    pointer-events: none;
}
.card > * { position: relative; }
.card .icon { width: 54px; height: 54px; border-radius: 18px; display: grid; place-items: center; background: rgba(65,216,255,.10); border: 1px solid rgba(65,216,255,.20); margin-bottom: 18px; color: var(--blue); font-weight: 900; }
.card-image { padding: 0; overflow: hidden; }
.card-image img { width: 100%; aspect-ratio: 16 / 10; object-fit: cover; border-bottom: 1px solid var(--line); background: #070b19; }
.card-image .card-body { padding: 22px; }
.badge-list { display: flex; flex-wrap: wrap; gap: 10px; margin: 20px 0 0; padding: 0; list-style: none; }
.badge-list li, .pill { border: 1px solid rgba(65,216,255,.24); background: rgba(65,216,255,.08); color: #dff8ff; border-radius: 999px; padding: 7px 12px; font-size: 13px; }
.feature-band { border: 1px solid var(--line); background: rgba(255,255,255,.04); border-radius: var(--radius-xl); padding: 28px; display: grid; grid-template-columns: .9fr 1.1fr; gap: 28px; align-items: center; }
.feature-band img { border-radius: 22px; background: #070b19; }
.timeline { display: grid; gap: 16px; counter-reset: step; }
.timeline-item { counter-increment: step; display: grid; grid-template-columns: 56px 1fr; gap: 16px; align-items: start; }
.timeline-item:before { content: counter(step, decimal-leading-zero); width: 56px; height: 56px; display: grid; place-items: center; border-radius: 18px; color: #fff; font-weight: 900; background: linear-gradient(135deg, var(--blue), var(--purple)); }
.faq { display: grid; gap: 14px; }
.faq details { border: 1px solid var(--line); background: rgba(255,255,255,.04); border-radius: 18px; padding: 18px 20px; }
.faq summary { cursor: pointer; color: #fff; font-weight: 800; }
.faq p { margin: 12px 0 0; }
.page-hero { padding: 70px 0 48px; border-bottom: 1px solid var(--line); background: radial-gradient(circle at 80% 10%, rgba(167,96,255,.18), transparent 32%); }
.breadcrumb { display: flex; gap: 8px; align-items: center; color: var(--muted); margin-bottom: 20px; font-size: 14px; }
.breadcrumb a { color: #dbe9ff; }
.split { display: grid; grid-template-columns: .86fr 1.14fr; gap: 34px; align-items: center; }
.notice { border: 1px solid rgba(103,255,210,.22); background: rgba(103,255,210,.07); border-radius: 18px; padding: 18px; color: #dffdf6; }
.metric-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-top: 22px; }
.metric { padding: 18px; border-radius: 18px; border: 1px solid var(--line); background: rgba(255,255,255,.04); }
.metric strong { display: block; color: var(--blue); font-size: 26px; }
.video-card { position: relative; }
.video-thumb { position: relative; overflow: hidden; }
.video-thumb:after { content: "▶"; position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%); width: 58px; height: 58px; display: grid; place-items: center; border-radius: 999px; color: #fff; background: rgba(65,216,255,.26); border: 1px solid rgba(255,255,255,.28); backdrop-filter: blur(8px); }
.form-card { border: 1px solid var(--line); background: rgba(255,255,255,.05); border-radius: var(--radius-xl); padding: 28px; }
.form-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.form-grid .full { grid-column: 1 / -1; }
label { display: grid; gap: 8px; color: #dceaff; font-weight: 700; }
input, textarea, select { width: 100%; border: 1px solid rgba(65,216,255,.22); border-radius: 14px; padding: 13px 14px; color: #fff; background: rgba(6, 10, 24, .75); outline: none; font: inherit; }
textarea { min-height: 130px; resize: vertical; }
.form-note { margin-top: 12px; color: var(--green); min-height: 28px; }
.site-footer { border-top: 1px solid var(--line); background: rgba(3,5,14,.88); padding: 56px 0 22px; }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1.2fr; gap: 28px; }
.footer-grid h3 { font-size: 16px; color: #fff; }
.footer-grid a { display: block; color: var(--muted); margin: 8px 0; }
.footer-grid a:hover { color: var(--blue); }
.footer-logo { margin-bottom: 18px; }
.footer-bottom { display: flex; justify-content: space-between; gap: 20px; align-items: center; border-top: 1px solid var(--line); margin-top: 34px; padding-top: 20px; font-size: 14px; }
.footer-bottom p { margin: 0; }
.glow-orb { position: absolute; width: 260px; height: 260px; border-radius: 50%; background: rgba(65,216,255,.16); filter: blur(60px); pointer-events: none; }
.orb-one { left: -80px; top: 20%; }
.orb-two { right: -90px; bottom: 10%; background: rgba(255,120,210,.16); }
@media (max-width: 980px) {
    .site-nav { position: absolute; left: 16px; right: 16px; top: 72px; display: none; flex-direction: column; align-items: stretch; padding: 14px; border: 1px solid var(--line); background: rgba(8,12,28,.96); border-radius: 22px; }
    .site-nav.open { display: flex; }
    .site-nav a { border-radius: 14px; }
    .nav-toggle { display: block; }
    .hero-grid, .split, .feature-band { grid-template-columns: 1fr; }
    .grid-4, .grid-3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .footer-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 680px) {
    .hero { padding: 56px 0 44px; }
    .section { padding: 54px 0; }
    .grid-4, .grid-3, .grid-2, .metric-list, .stats-row, .form-grid { grid-template-columns: 1fr; }
    .section-head { display: block; }
    .footer-grid { grid-template-columns: 1fr; }
    .footer-bottom { flex-direction: column; align-items: flex-start; }
    .brand strong { font-size: 18px; }
    .page-hero { padding: 50px 0 34px; }
}