:root {
  color-scheme: light;
  --text: #172033;
  --muted: #667085;
  --line: rgba(120, 134, 160, .24);
  --glass: rgba(255, 255, 255, .72);
  --primary: #007aff;
  --primary-dark: #0057c2;
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI", "Microsoft YaHei", sans-serif;
}

* { box-sizing: border-box; }
body {
  min-height: 100vh;
  margin: 0;
  color: var(--text);
  background: linear-gradient(145deg, #f6f9ff 0%, #eef4ff 48%, #f9fbff 100%);
  overflow-x: hidden;
}
.bg-glow { position: fixed; width: 42vw; height: 42vw; border-radius: 50%; filter: blur(30px); opacity: .45; pointer-events: none; }
.bg-glow.one { left: -10vw; top: -12vw; background: #9fd0ff; }
.bg-glow.two { right: -14vw; bottom: -18vw; background: #ffd6e7; }
.nav {
  position: sticky; top: 0; z-index: 5;
  display: flex; justify-content: space-between; align-items: center;
  padding: 18px clamp(20px, 5vw, 72px);
  backdrop-filter: blur(22px);
  background: rgba(255, 255, 255, .58);
  border-bottom: 1px solid var(--line);
}
.brand { color: var(--text); font-weight: 800; text-decoration: none; letter-spacing: -.02em; }
.nav-links { display: flex; gap: 18px; }
.nav a { color: var(--text); text-decoration: none; }
.shell { width: min(1120px, calc(100vw - 32px)); margin: 38px auto 70px; }
.glass {
  position: relative;
  border: 1px solid rgba(255, 255, 255, .78);
  border-radius: 30px;
  background: var(--glass);
  box-shadow: 0 28px 80px rgba(37, 55, 99, .14), inset 0 1px 0 rgba(255, 255, 255, .8);
  backdrop-filter: blur(28px) saturate(1.25);
}
.hero { padding: clamp(34px, 6vw, 78px); }
.panel { padding: clamp(26px, 5vw, 48px); margin-bottom: 22px; }
.narrow { max-width: 540px; margin-left: auto; margin-right: auto; }
.eyebrow { margin: 0 0 10px; color: var(--primary); font-size: 13px; font-weight: 800; text-transform: uppercase; letter-spacing: .14em; }
h1 { max-width: 820px; margin: 0; font-size: clamp(34px, 7vw, 72px); line-height: .98; letter-spacing: -.055em; }
h2 { margin: 0 0 8px; letter-spacing: -.03em; }
.lead { max-width: 760px; color: var(--muted); font-size: clamp(18px, 2vw, 23px); line-height: 1.55; }
.actions, .meta { display: flex; flex-wrap: wrap; align-items: center; gap: 14px; margin-top: 28px; }
.button {
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 48px; padding: 0 22px; border: 0; border-radius: 999px;
  font-weight: 800; text-decoration: none; cursor: pointer;
}
.button.primary { color: #fff; background: linear-gradient(180deg, var(--primary), var(--primary-dark)); box-shadow: 0 14px 26px rgba(0, 122, 255, .28); }
.version, .hint, .meta { color: var(--muted); }
.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 18px; }
.card { padding: 26px; }
.card p, .notes { color: var(--muted); line-height: 1.65; }
.notice { margin-bottom: 18px; padding: 14px 18px; border-radius: 18px; background: rgba(0, 122, 255, .12); color: #034ea2; }
.form { display: grid; gap: 18px; max-width: 720px; }
label { display: grid; gap: 8px; color: var(--muted); font-weight: 700; }
input, textarea {
  width: 100%; border: 1px solid var(--line); border-radius: 18px;
  padding: 14px 16px; font: inherit; color: var(--text);
  background: rgba(255, 255, 255, .78);
  outline: none;
}
input:focus, textarea:focus { border-color: rgba(0, 122, 255, .65); box-shadow: 0 0 0 4px rgba(0, 122, 255, .11); }
.admin-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 18px; }
.release-list { display: grid; gap: 10px; }
.release-row { display: flex; gap: 12px; align-items: center; padding: 12px 0; border-bottom: 1px solid var(--line); }
.release-row span { color: var(--muted); }
.release-row em { color: var(--primary); font-style: normal; font-weight: 800; }
code { padding: 2px 6px; border-radius: 7px; background: rgba(0, 0, 0, .06); }

@media (max-width: 760px) {
  .nav, .admin-head { flex-direction: column; align-items: flex-start; }
  .grid { grid-template-columns: 1fr; }
  .shell { margin-top: 20px; }
  h1 { font-size: clamp(32px, 12vw, 48px); }
}