:root {
  --bg: #07100d;
  --panel: #0b1713;
  --panel-2: #10221b;
  --line: #274c3d;
  --text: #ddf7e9;
  --muted: #8eb7a3;
  --green: #61f5a5;
  --green-dark: #183c2c;
  --amber: #ffd479;
  --shadow: 0 0 24px rgba(97, 245, 165, .08);
  --max: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--text);
  background:
    radial-gradient(circle at 50% -20%, #193529 0, transparent 42%),
    var(--bg);
  font: 16px/1.7 "Cascadia Code", "Microsoft YaHei UI", monospace;
}
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 20;
  pointer-events: none;
  opacity: .18;
  background: repeating-linear-gradient(0deg, transparent 0 3px, rgba(0, 0, 0, .5) 3px 4px);
}
body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 19;
  pointer-events: none;
  background: rgba(110, 255, 170, .012);
  animation: crt-flicker 8s steps(2, end) infinite;
}
@keyframes crt-flicker {
  0%, 96%, 100% { opacity: .24; }
  97% { opacity: .08; }
  98% { opacity: .19; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    scroll-behavior: auto !important;
    animation: none !important;
    transition: none !important;
  }
}

a { color: inherit; }
img { display: block; max-width: 100%; height: auto; }
.container { width: min(calc(100% - 32px), var(--max)); margin-inline: auto; }
.skip-link { position: fixed; left: 10px; top: -80px; z-index: 99; padding: 8px 14px; background: var(--green); color: #04100a; }
.skip-link:focus { top: 10px; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 15;
  border-bottom: 1px solid var(--line);
  background: rgba(7, 16, 13, .94);
  backdrop-filter: blur(12px);
}
.nav-wrap { min-height: 72px; display: flex; align-items: center; justify-content: space-between; gap: 22px; }
.brand { display: inline-flex; align-items: center; gap: 11px; text-decoration: none; font-weight: 800; letter-spacing: .03em; }
.brand img { width: 42px; height: 42px; border: 1px solid var(--line); border-radius: 10px; }
.nav-links { display: flex; align-items: center; flex-wrap: wrap; gap: 8px; }
.nav-links a { padding: 8px 11px; color: var(--muted); text-decoration: none; border-radius: 7px; }
.nav-links a:hover, .nav-links a[aria-current="page"] { color: var(--green); background: var(--green-dark); }
.menu-toggle { display: none; border: 1px solid var(--line); background: var(--panel); color: var(--text); padding: 8px 12px; border-radius: 7px; font: inherit; }

main { overflow: hidden; }
.hero { padding: 76px 0 54px; }
.hero-grid { display: grid; grid-template-columns: 1.08fr .92fr; align-items: center; gap: 46px; }
.eyebrow, .terminal-label { color: var(--green); text-transform: uppercase; letter-spacing: .14em; font-size: .8rem; }
h1, h2, h3 { margin: 0 0 .6em; line-height: 1.22; }
h1 { font-size: clamp(2.3rem, 5vw, 4.7rem); letter-spacing: -.045em; }
h2 { font-size: clamp(1.65rem, 3vw, 2.65rem); }
h3 { font-size: 1.12rem; }
.lead { max-width: 700px; color: #b7d7c7; font-size: clamp(1rem, 2vw, 1.18rem); }
.hero-art, .terminal {
  position: relative;
  border: 1px solid var(--line);
  border-radius: 13px;
  background: #050b09;
  box-shadow: var(--shadow);
  overflow: hidden;
}
.hero-art img { width: 880px; aspect-ratio: 44 / 35; object-fit: cover; }
.hero-art figcaption { position: absolute; left: 14px; bottom: 14px; padding: 5px 9px; color: var(--green); background: rgba(3, 10, 7, .88); border: 1px solid var(--line); font-size: .78rem; }
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin: 28px 0; }
.btn { display: inline-flex; align-items: center; justify-content: center; min-height: 48px; padding: 0 20px; border: 1px solid var(--green); border-radius: 8px; text-decoration: none; font-weight: 800; }
.btn-primary { color: #031009; background: var(--green); }
.btn-secondary { color: var(--green); background: transparent; }
.btn:hover { transform: translateY(-1px); box-shadow: 0 0 22px rgba(97, 245, 165, .16); }
.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin: 24px 0 0; }
.stat { padding: 13px; border-left: 2px solid var(--green); background: rgba(97, 245, 165, .055); }
.stat strong { display: block; color: var(--green); font-size: 1.08rem; }
.stat span { color: var(--muted); font-size: .8rem; }

.section { padding: 70px 0; }
.section-alt { border-block: 1px solid rgba(39, 76, 61, .65); background: rgba(11, 23, 19, .65); }
.section-head { max-width: 720px; margin-bottom: 28px; }
.section-head p, .card p, .prose p, .muted { color: var(--muted); }
.grid { display: grid; gap: 16px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.card {
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 11px;
  background: linear-gradient(145deg, rgba(16, 34, 27, .92), rgba(8, 18, 14, .94));
  box-shadow: var(--shadow);
}
.card-icon { display: inline-grid; place-items: center; width: 38px; height: 38px; margin-bottom: 13px; color: var(--green); border: 1px solid var(--line); border-radius: 7px; background: var(--green-dark); font-weight: 800; }
.card a { color: var(--green); text-underline-offset: 4px; }
.platform-card { display: flex; flex-direction: column; }
.platform-card .btn { margin-top: auto; }
.badge { display: inline-block; width: max-content; margin-bottom: 12px; padding: 3px 8px; color: var(--amber); border: 1px solid #69572c; border-radius: 999px; font-size: .76rem; }

.page-hero { padding: 66px 0 36px; border-bottom: 1px solid var(--line); }
.page-hero h1 { max-width: 900px; font-size: clamp(2.1rem, 4vw, 3.8rem); }
.breadcrumbs { margin-bottom: 18px; color: var(--muted); font-size: .86rem; }
.breadcrumbs a { color: var(--green); }
.terminal { padding: 20px; }
.terminal-bar { display: flex; gap: 7px; padding-bottom: 15px; border-bottom: 1px solid #183127; }
.terminal-bar i { width: 9px; height: 9px; border-radius: 50%; background: var(--green); opacity: .6; }
.terminal pre { margin: 18px 0 0; color: #aee9c9; white-space: pre-wrap; font: .92rem/1.8 inherit; }
.steps { counter-reset: step; display: grid; gap: 14px; }
.step { counter-increment: step; position: relative; padding: 22px 22px 22px 68px; border: 1px solid var(--line); border-radius: 10px; background: var(--panel); }
.step::before { content: counter(step, decimal-leading-zero); position: absolute; left: 19px; top: 21px; color: var(--green); font-weight: 800; }
.faq details { border-top: 1px solid var(--line); padding: 18px 4px; }
.faq details:last-child { border-bottom: 1px solid var(--line); }
.faq summary { cursor: pointer; font-weight: 800; }
.faq p { color: var(--muted); }
.notice { padding: 17px 19px; color: #c9e8d8; border-left: 3px solid var(--amber); background: rgba(255, 212, 121, .07); }
.cta { display: flex; align-items: center; justify-content: space-between; gap: 24px; padding: 32px; border: 1px solid var(--green); border-radius: 12px; background: linear-gradient(135deg, #123326, #091510); }
.cta p { margin: 0; color: var(--muted); }

.site-footer { padding: 50px 0 22px; border-top: 1px solid var(--line); background: #050c09; }
.footer-grid { display: grid; grid-template-columns: 1.4fr repeat(3, 1fr); gap: 28px; }
.footer-list { margin: 0; padding: 0; list-style: none; }
.footer-list a { color: var(--muted); text-decoration: none; }
.footer-list a:hover { color: var(--green); }
.copyright { margin-top: 34px; padding-top: 20px; color: #759585; border-top: 1px solid #14271f; font-size: .8rem; }

@media (max-width: 900px) {
  .hero-grid, .grid-4, .footer-grid { grid-template-columns: repeat(2, 1fr); }
  .hero-copy { grid-column: 1 / -1; }
  .hero-art { grid-column: 1 / -1; }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 720px) {
  .menu-toggle { display: block; }
  .nav-links { display: none; position: absolute; inset: 72px 16px auto; padding: 12px; border: 1px solid var(--line); background: #07100d; box-shadow: var(--shadow); }
  .nav-links.open { display: grid; }
  .nav-links a { width: 100%; }
  .hero { padding-top: 48px; }
  .hero-grid, .grid-2, .grid-3, .grid-4, .footer-grid, .stats { grid-template-columns: 1fr; }
  .hero-copy, .hero-art { grid-column: auto; }
  .cta { align-items: flex-start; flex-direction: column; }
}