:root {
    --bg: #070916;
    --bg-2: #0e1230;
    --card: rgba(18, 24, 55, 0.82);
    --card-2: rgba(27, 34, 77, 0.78);
    --line: rgba(106, 229, 255, 0.22);
    --text: #eef6ff;
    --muted: #a8b4d8;
    --cyan: #38e8ff;
    --blue: #3778ff;
    --purple: #a54cff;
    --pink: #ff5bd5;
    --green: #7cffc4;
    --radius-xl: 30px;
    --radius-lg: 22px;
    --shadow: 0 28px 80px rgba(20, 87, 255, 0.24);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    min-width: 320px;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;
    color: var(--text);
    background:
        radial-gradient(circle at 15% 10%, rgba(65, 226, 255, 0.18), transparent 30%),
        radial-gradient(circle at 85% 15%, rgba(167, 81, 255, 0.20), transparent 34%),
        radial-gradient(circle at 50% 100%, rgba(43, 103, 255, 0.16), transparent 28%),
        var(--bg);
    line-height: 1.75;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
.container { width: min(1180px, calc(100% - 36px)); margin: 0 auto; }
.site-header {
    position: sticky;
    top: 0;
    z-index: 20;
    backdrop-filter: blur(18px);
    background: rgba(7, 9, 22, 0.78);
    border-bottom: 1px solid rgba(106, 229, 255, 0.18);
}
.nav-wrap { display: flex; align-items: center; justify-content: space-between; min-height: 76px; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 12px; font-weight: 800; letter-spacing: .02em; }
.brand-mark {
    display: inline-grid;
    place-items: center;
    width: 50px;
    height: 50px;
    border-radius: 16px;
    background: linear-gradient(135deg, var(--cyan), var(--blue) 46%, var(--purple));
    color: white;
    box-shadow: 0 0 35px rgba(56, 232, 255, .35);
}
.brand-text { color: #f7fbff; }
.main-nav { display: flex; align-items: center; gap: 8px; }
.main-nav a {
    padding: 10px 13px;
    border-radius: 999px;
    color: #cbd8ff;
    font-size: 15px;
    transition: .2s ease;
}
.main-nav a:hover, .main-nav a.active { background: rgba(56, 232, 255, .12); color: white; box-shadow: inset 0 0 0 1px rgba(56, 232, 255, .16); }
.nav-toggle { display: none; border: 0; background: rgba(56,232,255,.12); color: #fff; border-radius: 14px; width: 44px; height: 44px; font-size: 23px; }
.hero { position: relative; overflow: hidden; padding: 92px 0 64px; }
.hero::before, .hero::after {
    content: "";
    position: absolute;
    inset: auto;
    border-radius: 999px;
    filter: blur(2px);
    pointer-events: none;
}
.hero::before { width: 360px; height: 360px; left: -160px; top: 60px; background: rgba(56, 232, 255, .12); }
.hero::after { width: 420px; height: 420px; right: -180px; bottom: -110px; background: rgba(165, 76, 255, .14); }
.hero-grid { display: grid; grid-template-columns: 1.02fr .98fr; gap: 48px; align-items: center; position: relative; z-index: 1; }
.eyebrow { display: inline-flex; align-items: center; gap: 9px; color: var(--green); font-weight: 700; background: rgba(124,255,196,.09); border: 1px solid rgba(124,255,196,.18); border-radius: 999px; padding: 8px 14px; }
.eyebrow::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--green); box-shadow: 0 0 14px var(--green); }
h1, h2, h3 { line-height: 1.18; margin: 0; }
h1 { margin-top: 22px; font-size: clamp(40px, 6.2vw, 82px); letter-spacing: -.06em; }
.gradient-text { background: linear-gradient(135deg, #fff 0%, #91f5ff 42%, #c99bff 78%, #ff8be8 100%); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero p { max-width: 760px; color: var(--muted); font-size: 18px; margin: 22px 0 0; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 30px; }
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    border-radius: 999px;
    padding: 13px 20px;
    font-weight: 800;
    border: 1px solid rgba(255,255,255,.12);
    transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary { background: linear-gradient(135deg, var(--cyan), var(--blue), var(--purple)); box-shadow: var(--shadow); color: #fff; }
.btn-secondary { background: rgba(255,255,255,.06); color: #e8f4ff; }
.hero-visual { position: relative; }
.hero-visual img { border-radius: var(--radius-xl); filter: drop-shadow(0 32px 80px rgba(42, 124, 255, .42)); }
.hero-badges { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-top: 18px; }
.hero-badges span { padding: 13px 14px; border-radius: 18px; background: rgba(255,255,255,.06); border: 1px solid rgba(106,229,255,.16); color: #d9e7ff; font-size: 14px; text-align: center; }
.section { padding: 76px 0; position: relative; }
.section.alt { background: linear-gradient(180deg, rgba(255,255,255,.02), rgba(56,232,255,.04)); border-top: 1px solid rgba(106,229,255,.08); border-bottom: 1px solid rgba(106,229,255,.08); }
.section-heading { display: flex; align-items: end; justify-content: space-between; gap: 28px; margin-bottom: 30px; }
.section-heading .intro { max-width: 740px; }
.kicker { margin: 0 0 10px; color: var(--cyan); font-weight: 800; letter-spacing: .08em; text-transform: uppercase; font-size: 13px; }
h2 { font-size: clamp(28px, 4.4vw, 52px); letter-spacing: -.04em; }
.section-heading p, .lead { color: var(--muted); margin: 14px 0 0; font-size: 17px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.feature-card, .scenario-card, .lab-card, .video-card, .metric-card, .panel-card {
    background: linear-gradient(180deg, rgba(255,255,255,.07), rgba(255,255,255,.03));
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    padding: 22px;
    box-shadow: 0 18px 50px rgba(0,0,0,.18);
    transform: translateY(14px);
    opacity: 0;
    transition: transform .55s ease, opacity .55s ease, border-color .2s ease;
}
.feature-card.is-visible, .scenario-card.is-visible, .lab-card.is-visible, .video-card.is-visible, .metric-card.is-visible { opacity: 1; transform: translateY(0); }
.feature-card:hover, .scenario-card:hover, .lab-card:hover, .video-card:hover { border-color: rgba(56,232,255,.46); }
.feature-card img, .scenario-card img, .lab-card img, .video-card img { width: 100%; aspect-ratio: 16 / 10; object-fit: cover; border-radius: 17px; background: #0a1026; margin-bottom: 18px; }
.feature-card h3, .scenario-card h3, .lab-card h3, .video-card h3, .panel-card h3 { font-size: 22px; margin-bottom: 10px; }
.feature-card p, .scenario-card p, .lab-card p, .video-card p, .panel-card p, .metric-card p { color: var(--muted); margin: 0; }
.text-link { display: inline-flex; margin-top: 16px; color: var(--cyan); font-weight: 800; }
.matrix { display: grid; grid-template-columns: 1.1fr .9fr; gap: 24px; align-items: stretch; }
.panel-card { opacity: 1; transform: none; }
.panel-card.big { padding: 28px; min-height: 100%; }
.metrics { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; margin-top: 22px; }
.metric-card { opacity: 1; transform: none; padding: 18px; }
.metric-card strong { display: block; font-size: 30px; line-height: 1; margin-bottom: 8px; background: linear-gradient(135deg, var(--cyan), #fff, var(--purple)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.timeline { display: grid; gap: 16px; counter-reset: step; }
.timeline-item { position: relative; display: grid; grid-template-columns: auto 1fr; gap: 16px; align-items: start; padding: 20px; border-radius: 20px; background: rgba(255,255,255,.05); border: 1px solid rgba(106,229,255,.14); }
.timeline-item::before { counter-increment: step; content: counter(step); display: grid; place-items: center; width: 38px; height: 38px; border-radius: 13px; background: linear-gradient(135deg, var(--cyan), var(--purple)); font-weight: 900; }
.timeline-item h3 { font-size: 19px; margin-bottom: 4px; }
.timeline-item p { color: var(--muted); margin: 0; }
.bars { display: grid; gap: 14px; margin-top: 20px; }
.bar-row { display: grid; gap: 7px; color: #dce8ff; }
.bar-track { height: 10px; border-radius: 999px; background: rgba(255,255,255,.08); overflow: hidden; }
.bar-track::before { content: ""; display: block; width: var(--bar-value, 0%); height: 100%; border-radius: inherit; background: linear-gradient(90deg, var(--cyan), var(--blue), var(--purple)); }
.tags { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 18px; }
.tags span { padding: 8px 12px; border-radius: 999px; background: rgba(56,232,255,.09); border: 1px solid rgba(56,232,255,.16); color: #dff8ff; }
.page-hero { padding: 76px 0 42px; border-bottom: 1px solid rgba(106,229,255,.1); }
.page-hero .wrap { display: grid; grid-template-columns: 1fr .65fr; gap: 36px; align-items: center; }
.page-hero h1 { font-size: clamp(36px, 5vw, 64px); }
.page-hero p { color: var(--muted); font-size: 18px; max-width: 820px; }
.page-hero img { border-radius: var(--radius-xl); filter: drop-shadow(0 26px 60px rgba(56,232,255,.22)); }
.solution-list, .faq-list { display: grid; gap: 16px; }
.solution-row, .faq-item { display: grid; grid-template-columns: 220px 1fr; gap: 22px; padding: 22px; border-radius: 22px; background: rgba(255,255,255,.05); border: 1px solid rgba(106,229,255,.15); }
.solution-row h3, .faq-item h3 { font-size: 21px; }
.solution-row p, .faq-item p { color: var(--muted); margin: 0; }
.video-card { position: relative; overflow: hidden; }
.video-card::after { content: "▶"; position: absolute; left: 36px; top: 36px; display: grid; place-items: center; width: 46px; height: 46px; border-radius: 999px; background: rgba(255,255,255,.9); color: #1b2360; font-weight: 900; box-shadow: 0 12px 28px rgba(0,0,0,.26); }
.contact-panel { display: grid; grid-template-columns: .95fr 1.05fr; gap: 24px; }
.contact-box { padding: 26px; border-radius: var(--radius-lg); background: linear-gradient(180deg, rgba(255,255,255,.08), rgba(255,255,255,.04)); border: 1px solid rgba(106,229,255,.18); }
.contact-box label { display: grid; gap: 8px; margin-bottom: 14px; color: #d9e7ff; }
.contact-box input, .contact-box textarea, .contact-box select { width: 100%; border: 1px solid rgba(106,229,255,.18); border-radius: 14px; background: rgba(7,9,22,.68); color: #fff; padding: 12px 13px; font: inherit; }
.contact-box textarea { min-height: 126px; resize: vertical; }
.notice { padding: 16px 18px; border-radius: 18px; background: rgba(124,255,196,.09); border: 1px solid rgba(124,255,196,.18); color: #d8fff0; }
.site-footer { padding: 58px 0 28px; background: rgba(2, 4, 12, .62); border-top: 1px solid rgba(106,229,255,.13); }
.footer-grid { display: grid; grid-template-columns: 1.4fr .8fr 1fr; gap: 34px; }
.site-footer p, .site-footer a { color: var(--muted); }
.site-footer h3 { font-size: 18px; margin-bottom: 12px; }
.site-footer a { display: block; margin: 8px 0; }
.footer-bottom { margin-top: 32px; padding-top: 22px; border-top: 1px solid rgba(106,229,255,.12); display: flex; justify-content: space-between; gap: 20px; }
@media (max-width: 960px) {
    .hero-grid, .matrix, .page-hero .wrap, .contact-panel { grid-template-columns: 1fr; }
    .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); }
    .solution-row, .faq-item { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 720px) {
    .container { width: min(100% - 28px, 1180px); }
    .nav-toggle { display: inline-grid; place-items: center; }
    .main-nav { display: none; position: absolute; left: 14px; right: 14px; top: 70px; padding: 14px; border-radius: 20px; background: rgba(7,9,22,.96); border: 1px solid rgba(106,229,255,.18); box-shadow: 0 28px 70px rgba(0,0,0,.35); }
    .main-nav.is-open { display: grid; }
    .main-nav a { border-radius: 14px; }
    .hero { padding: 62px 0 44px; }
    .hero-badges, .grid-2, .grid-3, .grid-4, .metrics, .footer-grid { grid-template-columns: 1fr; }
    .section { padding: 56px 0; }
    .section-heading { display: block; }
    .footer-bottom { display: block; }
}