/* ============================================================
   拾光者 · CORE RUNNER —— 样式
   ============================================================ */

:root {
  --bg: #0B0E14;
  --panel: #12161F;
  --line: rgba(146, 180, 216, 0.22);
  --text: #E8EEF6;
  --dim: rgba(232, 238, 246, 0.62);
  --amber: #FFB74A;
  --cyan: #4AD8E8;
  --red: #E8554A;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  height: 100%;
  overflow: hidden;
  background: var(--bg);
  color: var(--text);
  font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}

#stage {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
}

.hidden { display: none !important; }

/* ---------------- HUD ---------------- */

.hud {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  display: flex;
  justify-content: center;
  gap: 56px;
  padding: 18px 24px;
  pointer-events: none;
}

.hud-item {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 8px 18px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(11, 14, 20, 0.55);
  backdrop-filter: blur(6px);
}

.hud-label {
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--dim);
}

.hud-value {
  font-size: 14px;
  letter-spacing: 0.05em;
}

.hud-value b {
  font-size: 20px;
  font-weight: 700;
  color: var(--amber);
}

.hud-value.danger b { color: var(--red); }

.hud-tip {
  position: fixed;
  bottom: 18px;
  left: 0;
  right: 0;
  margin: 0;
  text-align: center;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--dim);
  pointer-events: none;
}

/* ---------------- 面板 ---------------- */

.overlay {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: radial-gradient(ellipse at 50% 42%, rgba(20, 28, 44, 0.66), rgba(6, 8, 12, 0.94));
  z-index: 20;
}

.panel {
  width: min(480px, 88vw);
  padding: 44px 44px 36px;
  text-align: center;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--panel);
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.5);
}

.panel-eyebrow {
  margin: 0 0 16px;
  font-size: 11px;
  letter-spacing: 0.26em;
  text-transform: uppercase;
  color: var(--cyan);
}

.panel-title {
  margin: 0;
  font-size: 44px;
  letter-spacing: 0.16em;
  font-weight: 700;
}

.panel-sub {
  margin: 6px 0 22px;
  font-size: 12px;
  letter-spacing: 0.42em;
  color: var(--dim);
}

.panel-text {
  margin: 0 0 28px;
  font-size: 14px;
  line-height: 2.05;
  color: var(--dim);
}

.panel-text b {
  color: var(--amber);
  font-weight: 600;
}

.panel-btn {
  padding: 13px 52px;
  font-size: 15px;
  letter-spacing: 0.2em;
  color: #10202A;
  background: var(--cyan);
  border: none;
  border-radius: 999px;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.panel-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(74, 216, 232, 0.35);
}

.panel-hint {
  margin: 16px 0 0;
  font-size: 12px;
  color: var(--dim);
}

/* ---------------- 返回链接 ---------------- */

.back-link {
  position: fixed;
  left: 22px;
  bottom: 18px;
  z-index: 30;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--text);
  text-decoration: none;
  opacity: 0.4;
  transition: opacity 0.2s ease;
}

.back-link:hover { opacity: 0.9; }