:root {
  --bg: #050914;
  --text: #f4f8ff;
  --muted: #bdc9dc;
  --dim: #8290a8;
  --line: rgba(161, 191, 235, 0.18);
  --blue: #2d8cff;
  --blue-2: #6ed6ff;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100vh;
  background: radial-gradient(900px 500px at 12% -10%, rgba(45, 140, 255, 0.16), transparent 70%), var(--bg);
  color: var(--muted);
  font-family: "Segoe UI", system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;
  line-height: 1.7;
}
.pv-head {
  position: sticky;
  top: 0;
  z-index: 5;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px clamp(20px, 4vw, 48px);
  background: rgba(5, 9, 20, 0.86);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}
.pv-brand { display: inline-flex; align-items: center; gap: 10px; color: var(--text); text-decoration: none; font-weight: 800; letter-spacing: 0.04em; }
.pv-brand svg { width: 30px; height: 30px; }
.pv-back { color: var(--blue-2); text-decoration: none; font-size: 0.95rem; }
.pv-back:hover, .pv-back:focus-visible { text-decoration: underline; outline: 0; }

.pv-main { max-width: 820px; margin: 0 auto; padding: clamp(40px, 7vw, 80px) clamp(20px, 4vw, 32px) 72px; }
.pv-kicker { margin: 0 0 10px; color: var(--blue-2); font-size: 0.85rem; letter-spacing: 0.14em; text-transform: uppercase; font-weight: 700; }
h1 { margin: 0 0 12px; color: var(--text); font-size: clamp(2rem, 5vw, 3rem); line-height: 1.15; letter-spacing: -0.01em; }
.pv-updated { margin: 0 0 36px; color: var(--dim); font-size: 0.92rem; }
.pv-lead { font-size: 1.08rem; color: var(--text); }
h2 { margin: 44px 0 10px; color: var(--text); font-size: 1.3rem; }
h2::after { content: ""; display: block; width: 34px; height: 2px; margin-top: 10px; border-radius: 2px; background: var(--blue); }
p { margin: 0 0 14px; }
ul { margin: 0 0 14px; padding-left: 1.2em; }
li { margin-bottom: 6px; }
li::marker { color: var(--blue); }
a { color: var(--blue-2); }
strong { color: var(--text); }

.pv-foot { border-top: 1px solid var(--line); padding: 22px clamp(20px, 4vw, 48px) 32px; text-align: center; color: var(--dim); font-size: 0.85rem; }