/* ============================================================
   熊猫云挂机 — 错误页样式（404 / 500）
   ============================================================ */

.error-page {
  background: var(--bg);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.nav--simple {
  position: relative;
  background: transparent;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  border-bottom: 1px solid var(--line);
}

.error-main {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 60px 24px 100px;
  position: relative;
  overflow: hidden;
}

.error-main::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 600px 300px at 50% 30%, rgba(245, 158, 11, 0.1), transparent 70%);
  pointer-events: none;
}

.error-content {
  position: relative;
  max-width: 880px;
  width: 100%;
  text-align: center;
}

.error-code {
  font-family: var(--font-mono);
  font-size: clamp(8rem, 20vw, 16rem);
  font-weight: 900;
  line-height: 1;
  background: linear-gradient(135deg, var(--gold) 0%, var(--gold-2) 50%, var(--cyan-2) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  letter-spacing: -0.05em;
  margin-bottom: 24px;
  text-shadow: 0 0 60px rgba(245, 158, 11, 0.2);
  user-select: none;
}
.error-code--red {
  background: linear-gradient(135deg, #ef4444 0%, #f59e0b 50%, #ef4444 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  text-shadow: 0 0 60px rgba(239, 68, 68, 0.2);
}

.error-content h1 {
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  font-weight: 800;
  margin: 0 0 14px;
  letter-spacing: -0.01em;
}

.error-content > p {
  color: var(--fg-1);
  font-size: 1.05rem;
  margin: 0 0 40px;
  line-height: 1.7;
}

.error-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  justify-content: center;
  margin-bottom: 60px;
}

/* ===== 404 链接网格 ===== */
.error-links h3 {
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--fg-3);
  margin: 0 0 20px;
  font-weight: 600;
}

.error-link-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  text-align: left;
}

.error-link {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 20px;
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  text-decoration: none;
  color: inherit;
  transition: transform 0.2s, border-color 0.2s, background 0.2s;
}
.error-link:hover {
  transform: translateY(-2px);
  border-color: var(--gold);
  background: var(--bg-3);
}

.error-link-icon {
  font-size: 1.6rem;
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(245, 158, 11, 0.1);
  border-radius: var(--radius-sm);
}

.error-link-title {
  font-weight: 600;
  color: var(--fg);
  font-size: 0.95rem;
  margin-bottom: 2px;
}
.error-link-desc {
  font-size: 0.8rem;
  color: var(--fg-3);
}

/* ===== 500 联系网格 ===== */
.error-contact h3 {
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--fg-3);
  margin: 0 0 20px;
  font-weight: 600;
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  text-align: center;
  margin-bottom: 40px;
}

.contact-card {
  padding: 24px 16px;
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  text-decoration: none;
  color: inherit;
  transition: transform 0.2s, border-color 0.2s, background 0.2s;
}
.contact-card:hover {
  transform: translateY(-2px);
  border-color: var(--gold);
  background: var(--bg-3);
}

.contact-icon {
  font-size: 2rem;
  margin-bottom: 8px;
}
.contact-title {
  font-weight: 600;
  color: var(--fg);
  font-size: 1rem;
  margin-bottom: 4px;
}
.contact-desc {
  font-size: 0.85rem;
  color: var(--fg-3);
}

/* ===== 状态指示 ===== */
.error-status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 0.85rem;
  color: var(--fg-2);
}
.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--gold-2);
  box-shadow: 0 0 8px var(--gold-2);
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.85); }
}

/* ===== 响应式 ===== */
@media (max-width: 760px) {
  .error-main { padding: 40px 16px 60px; }
  .error-link-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .error-code { font-size: 8rem; }
}