/* Site 01 — rzmxn.com
   Visual direction: sparse constellation line network (report option 01).
   Composition: centered / balanced, midnight-blue, rounded pill grid.
   All original CSS; no third-party stylesheet bundled. */

:root {
  --bg-0: #05070f;
  --bg-1: #0a1024;
  --bg-2: #0e1738;
  --ink: #eaf0ff;
  --ink-soft: #aab6d4;
  --ink-mute: #7f8bab;
  --accent: #5b8cff;
  --accent-2: #9ecbff;
  --line: rgba(120, 152, 230, 0.22);
  --panel: rgba(9, 14, 32, 0.62);
}

* { box-sizing: border-box; }

html, body { min-height: 100%; }

body {
  margin: 0;
  color: var(--ink);
  font-family: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Segoe UI", Arial, sans-serif;
  background:
    radial-gradient(1200px 720px at 50% -12%, #142255 0%, rgba(20, 34, 85, 0) 60%),
    radial-gradient(900px 620px at 50% 118%, #0b1740 0%, rgba(11, 23, 64, 0) 62%),
    linear-gradient(180deg, var(--bg-1) 0%, var(--bg-0) 100%);
  background-attachment: fixed;
  -webkit-font-smoothing: antialiased;
}

#bg {
  position: fixed;
  inset: 0;
  z-index: 0;
  width: 100%;
  height: 100%;
  display: block;
  pointer-events: none;
}

.stage {
  position: relative;
  z-index: 1;
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 48px 20px;
}

.panel {
  width: min(760px, 100%);
  text-align: center;
  padding: 40px 30px 30px;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: var(--panel);
  backdrop-filter: blur(6px);
  box-shadow: 0 24px 70px rgba(2, 6, 20, 0.55);
}

/* Site 01 logo: circular frame, cool blue glow (distinct from site 02). */
.brand-img {
  display: block;
  width: clamp(84px, 12vw, 108px);
  height: auto;
  aspect-ratio: 1 / 1;
  margin: 0 auto 16px;
  object-fit: cover;
  background: #f4f6ff;
  border-radius: 50%;
  border: 2px solid rgba(91, 140, 255, 0.85);
  box-shadow: 0 0 26px rgba(43, 108, 255, 0.45), 0 10px 28px rgba(2, 6, 20, 0.5);
}

h1 {
  margin: 0 0 14px;
  font-size: clamp(26px, 5.4vw, 44px);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: 0.3px;
  /* If it ever must wrap, split lines evenly instead of stranding one glyph. */
  text-wrap: balance;
  background: linear-gradient(180deg, #ffffff 0%, #b9ccff 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.intro {
  margin: 0 auto 30px;
  max-width: 560px;
  color: var(--ink-soft);
  font-size: 15.5px;
  line-height: 1.85;
}

.links ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 12px;
}

.link {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  padding: 10px 16px;
  border: 1px solid rgba(120, 152, 230, 0.34);
  border-radius: 999px;
  color: var(--ink);
  font-size: 15px;
  text-decoration: none;
  background: linear-gradient(180deg, rgba(30, 47, 102, 0.55), rgba(16, 26, 60, 0.55));
  transition: transform 0.18s ease, border-color 0.18s ease, box-shadow 0.18s ease, background 0.18s ease;
}

.link:hover {
  transform: translateY(-2px);
  border-color: var(--accent-2);
  background: linear-gradient(180deg, rgba(46, 74, 158, 0.7), rgba(24, 40, 92, 0.7));
  box-shadow: 0 12px 28px rgba(41, 82, 190, 0.35);
}

.link:focus-visible {
  outline: 3px solid var(--accent-2);
  outline-offset: 3px;
  border-color: var(--accent-2);
}

.guide {
  margin-top: 34px;
  padding-top: 26px;
  border-top: 1px solid var(--line);
  text-align: left;
}

.guide h2 {
  margin: 0 0 18px;
  color: var(--ink);
  font-size: 20px;
  line-height: 1.4;
  text-align: center;
}

.guide-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.guide article {
  padding: 16px;
  border: 1px solid rgba(120, 152, 230, 0.2);
  border-radius: 14px;
  background: rgba(12, 20, 46, 0.46);
}

.guide h3 {
  margin: 0 0 8px;
  color: var(--accent-2);
  font-size: 15px;
}

.guide p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 13px;
  line-height: 1.75;
}

.foot {
  margin-top: 32px;
  color: var(--ink-mute);
  font-size: 12.5px;
  line-height: 1.7;
}
.foot p { margin: 6px 0; }
.foot-id { color: var(--ink-soft); letter-spacing: 0.4px; }

.bg-toggle {
  position: fixed;
  z-index: 3;
  top: 16px;
  right: 16px;
  padding: 8px 14px;
  border: 1px solid rgba(120, 152, 230, 0.4);
  border-radius: 999px;
  background: rgba(9, 14, 32, 0.78);
  color: var(--ink-soft);
  font: inherit;
  font-size: 13px;
  cursor: pointer;
}
.bg-toggle:hover { color: var(--ink); border-color: var(--accent-2); }
.bg-toggle:focus-visible { outline: 3px solid var(--accent-2); outline-offset: 3px; }

/* Desktop: give the card enough room to keep the H1 on a single balanced line.
   Mid widths keep normal wrapping, evened out by text-wrap: balance above. */
@media (min-width: 900px) {
  .panel { width: min(820px, 100%); }
  h1 { white-space: nowrap; }
}

@media (max-width: 560px) {
  .panel { padding: 30px 18px 22px; border-radius: 18px; }
  .links ul { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .guide-grid { grid-template-columns: 1fr; }
}

@media (max-width: 380px) {
  .links ul { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  .link { transition: none; }
}