:root {
    --bg: #07090d;
    --bg-soft: #0f131b;
    --panel: #151a24;
    --panel-2: #1e2430;
    --text: #f5f7fb;
    --muted: #a9b1c3;
    --line: rgba(255,255,255,.12);
    --blue: #002fa7;
    --blue-light: #2f62ff;
    --green: #7cff6b;
    --white: #ffffff;
    --shadow: 0 24px 80px rgba(0,0,0,.35);
    --radius-xl: 32px;
    --radius-lg: 22px;
    --radius-md: 16px;
    --container: 1180px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    color: var(--text);
    background:
        radial-gradient(circle at 12% 8%, rgba(47,98,255,.28), transparent 30%),
        radial-gradient(circle at 88% 4%, rgba(124,255,107,.13), transparent 26%),
        linear-gradient(180deg, #05070b 0%, #0b0e14 48%, #07090d 100%);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    line-height: 1.75;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
.container { width: min(var(--container), calc(100% - 40px)); margin: 0 auto; }
.site-header {
    position: sticky;
    top: 0;
    z-index: 50;
    background: rgba(7,9,13,.82);
    backdrop-filter: blur(18px);
    border-bottom: 1px solid var(--line);
}
.header-inner { min-height: 76px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand, .footer-brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 800; letter-spacing: .03em; }
.brand-mark {
    width: 42px;
    height: 42px;
    display: grid;
    place-items: center;
    border-radius: 14px;
    color: var(--white);
    background: linear-gradient(135deg, var(--blue), var(--blue-light));
    box-shadow: 0 0 0 1px rgba(255,255,255,.12), 0 14px 34px rgba(47,98,255,.28);
}
.brand-text { font-size: 20px; }
.main-nav { display: flex; align-items: center; gap: 6px; }
.main-nav a { padding: 10px 14px; border-radius: 999px; color: var(--muted); font-size: 15px; transition: .2s ease; }
.main-nav a:hover, .main-nav a.is-active { color: var(--text); background: rgba(255,255,255,.08); }
.menu-toggle { display: none; width: 44px; height: 44px; border: 1px solid var(--line); border-radius: 14px; background: transparent; color: var(--text); }
.menu-toggle span { display: block; width: 18px; height: 2px; margin: 4px auto; background: var(--text); border-radius: 99px; }
.hero { padding: 88px 0 56px; }
.hero-grid { display: grid; grid-template-columns: minmax(0, .95fr) minmax(360px, 1.05fr); align-items: center; gap: 48px; }
.eyebrow { display: inline-flex; align-items: center; gap: 8px; padding: 8px 12px; border: 1px solid rgba(124,255,107,.28); border-radius: 999px; color: var(--green); background: rgba(124,255,107,.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(42px, 7vw, 82px); line-height: 1.04; letter-spacing: -.06em; margin: 18px 0 22px; }
h2 { font-size: clamp(30px, 4vw, 52px); line-height: 1.1; letter-spacing: -.04em; margin-bottom: 18px; }
h3 { font-size: 21px; line-height: 1.25; margin-bottom: 10px; }
.lead { color: #dbe2f3; font-size: 18px; max-width: 680px; }
.hero-actions, .section-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 28px; }
.btn { display: inline-flex; align-items: center; justify-content: center; min-height: 48px; padding: 0 20px; border-radius: 999px; border: 1px solid var(--line); font-weight: 700; transition: .2s ease; }
.btn.primary { background: linear-gradient(135deg, var(--blue-light), var(--blue)); color: var(--white); border-color: transparent; box-shadow: 0 16px 40px rgba(47,98,255,.25); }
.btn.ghost { background: rgba(255,255,255,.06); color: var(--text); }
.btn:hover { transform: translateY(-2px); }
.hero-visual { position: relative; }
.hero-visual::before { content: ""; position: absolute; inset: -24px; border-radius: 42px; background: linear-gradient(135deg, rgba(47,98,255,.32), rgba(124,255,107,.11)); filter: blur(22px); opacity: .65; }
.hero-visual img { position: relative; border-radius: var(--radius-xl); border: 1px solid var(--line); box-shadow: var(--shadow); background: var(--panel); }
.metric-strip { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-top: 30px; }
.metric { padding: 18px; border: 1px solid var(--line); border-radius: var(--radius-md); background: rgba(255,255,255,.05); }
.metric strong { display: block; font-size: 24px; color: var(--green); }
.metric span { color: var(--muted); font-size: 14px; }
.section { padding: 72px 0; }
.section-head { display: flex; justify-content: space-between; gap: 24px; align-items: end; margin-bottom: 34px; }
.section-head p { max-width: 620px; color: var(--muted); margin-bottom: 0; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.card { border: 1px solid var(--line); border-radius: var(--radius-lg); background: linear-gradient(180deg, rgba(255,255,255,.075), rgba(255,255,255,.035)); padding: 24px; box-shadow: 0 16px 50px rgba(0,0,0,.18); }
.card img { border-radius: 18px; margin-bottom: 18px; border: 1px solid var(--line); background: #111722; }
.card p, .text-muted { color: var(--muted); }
.tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
.tag { border: 1px solid rgba(124,255,107,.24); color: var(--green); background: rgba(124,255,107,.07); padding: 5px 10px; border-radius: 999px; font-size: 13px; }
.panel { border: 1px solid var(--line); border-radius: var(--radius-xl); background: rgba(255,255,255,.055); padding: 34px; box-shadow: var(--shadow); }
.panel.blue { background: linear-gradient(135deg, rgba(0,47,167,.75), rgba(47,98,255,.28)); }
.work-masonry { columns: 3 280px; column-gap: 22px; }
.work-card { break-inside: avoid; margin-bottom: 22px; overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius-lg); background: rgba(255,255,255,.06); }
.work-card-content { padding: 22px; }
.work-card-content p { color: var(--muted); }
.timeline { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; counter-reset: step; }
.timeline-item { position: relative; min-height: 230px; padding: 24px; border: 1px solid var(--line); border-radius: var(--radius-lg); background: var(--panel); overflow: hidden; }
.timeline-item::before { counter-increment: step; content: "0" counter(step); display: inline-grid; place-items: center; width: 48px; height: 48px; margin-bottom: 30px; border-radius: 16px; color: #061008; background: var(--green); font-weight: 900; }
.timeline-item::after { content: ""; position: absolute; top: 47px; right: -40px; width: 80px; height: 2px; background: linear-gradient(90deg, var(--green), transparent); }
.timeline-item:last-child::after { display: none; }
.split { display: grid; grid-template-columns: .9fr 1.1fr; gap: 34px; align-items: center; }
.feature-list { display: grid; gap: 14px; margin: 0; padding: 0; list-style: none; }
.feature-list li { padding: 16px 18px; border: 1px solid var(--line); border-radius: var(--radius-md); background: rgba(255,255,255,.045); color: #dbe2f3; }
.feature-list strong { color: var(--text); display: block; margin-bottom: 4px; }
.quote { font-size: clamp(24px, 3vw, 38px); line-height: 1.22; letter-spacing: -.03em; }
.faq { display: grid; gap: 14px; }
.faq details { border: 1px solid var(--line); border-radius: var(--radius-md); background: rgba(255,255,255,.055); padding: 18px 20px; }
.faq summary { cursor: pointer; font-weight: 800; }
.faq p { color: var(--muted); margin: 12px 0 0; }
.page-hero { padding: 72px 0 42px; }
.page-hero h1 { max-width: 980px; }
.breadcrumb { color: var(--muted); font-size: 14px; margin-bottom: 14px; }
.breadcrumb a { color: #dbe2f3; }
.table-like { display: grid; gap: 12px; }
.table-row { display: grid; grid-template-columns: 160px 1fr; gap: 18px; padding: 18px; border: 1px solid var(--line); border-radius: var(--radius-md); background: rgba(255,255,255,.045); }
.table-row strong { color: var(--green); }
.video-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.video-card { overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius-lg); background: rgba(255,255,255,.06); }
.video-body { padding: 22px; }
.play-badge { display: inline-flex; gap: 8px; align-items: center; color: var(--green); font-weight: 800; }
.play-badge::before { content: "▶"; width: 26px; height: 26px; display: grid; place-items: center; border-radius: 50%; background: rgba(124,255,107,.12); }
.contact-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 28px; }
.form { display: grid; gap: 14px; }
.form label { display: grid; gap: 8px; color: #dbe2f3; font-weight: 700; }
.form input, .form select, .form textarea { width: 100%; border: 1px solid var(--line); border-radius: 14px; padding: 14px 15px; background: rgba(0,0,0,.22); color: var(--text); font: inherit; }
.form textarea { min-height: 128px; resize: vertical; }
.form-message { min-height: 24px; color: var(--green); }
.site-footer { margin-top: 60px; padding: 56px 0 24px; background: #05070b; border-top: 1px solid var(--line); }
.footer-grid { display: grid; grid-template-columns: 1.2fr .8fr .9fr; gap: 36px; }
.footer-grid p { color: var(--muted); max-width: 520px; }
.footer-grid a { display: block; color: var(--muted); margin: 8px 0; }
.footer-grid a:hover { color: var(--text); }
.domain-chip { display: inline-block; margin-top: 10px; color: var(--muted); font-size: 14px; }
.footer-bottom { display: flex; justify-content: space-between; gap: 18px; margin-top: 34px; padding-top: 22px; border-top: 1px solid var(--line); color: var(--muted); font-size: 14px; }
.reveal { opacity: 0; transform: translateY(16px); transition: .6s ease; }
.reveal.is-visible { opacity: 1; transform: translateY(0); }
@media (max-width: 980px) {
    .main-nav { position: absolute; top: 76px; left: 20px; right: 20px; display: none; flex-direction: column; align-items: stretch; padding: 14px; border: 1px solid var(--line); border-radius: 22px; background: rgba(7,9,13,.96); }
    .main-nav.is-open { display: flex; }
    .menu-toggle { display: block; }
    .hero-grid, .split, .contact-grid { grid-template-columns: 1fr; }
    .grid-3, .grid-2, .timeline, .video-grid, .footer-grid { grid-template-columns: 1fr 1fr; }
    .section-head { display: block; }
}
@media (max-width: 640px) {
    .container { width: min(100% - 28px, var(--container)); }
    .hero { padding-top: 54px; }
    .grid-3, .grid-2, .timeline, .video-grid, .footer-grid, .metric-strip { grid-template-columns: 1fr; }
    .table-row { grid-template-columns: 1fr; }
    .panel { padding: 24px; }
    .footer-bottom { flex-direction: column; }
}