.archive-button {
  display: inline-block;
  margin: 3rem auto;
  padding: 0.4rem 1.0rem;
  border: 2px solid var(--bs-primary);
  color: var(--bs-primary);
  background-color: transparent;
  font-family: "Open Sans", Lora, serif;
  font-size: 1.1rem;
  border-radius: 50px;
  text-decoration: none;
  transition: all 0.25s ease-in-out;
}

.archive-button:hover {
  background-color: var(--bs-primary);
  color: white;
  box-shadow: 0 0 8px rgba(0,133,161,0.3);
  transform: translateY(-2px);
}

.article-button {
  display: inline-block;
  margin: 3rem auto;
  padding: 0.4rem 1.0rem;
  border: 2px solid var(--bs-secondary-color);
  color: var(--bs-secondary-color);
  background-color: transparent;
  font-family: "Open Sans", Lora, serif;
  font-size: 1.1rem;
  border-radius: 999px;
  text-decoration: none;
  transition: all 0.25s ease-in-out;
}

.article-button:hover {
  background-color: var(--bs-secondary-color);
  color: white;
  box-shadow: 0 0 6px rgba(0,133,161,0.2);
  transform: translateY(-1px);
}

.spoiler {
  background-color: #000;
  color: transparent;
  border-radius: 4px;
  padding: 0 4px;
  transition: all 0.3s ease;
  cursor: pointer;
}

.spoiler a {
  color: transparent !important;
  text-decoration: none;
}

.spoiler:hover {
  color: #fff;
  background-color: #00000080;
}

.spoiler:hover a {
  color: inherit !important;
  text-decoration: underline; 
}

.theme-toggle {
  border: 1px solid var(--bs-border-color, #dee2e6);
  background: transparent;
  padding: 0.45rem 0.8rem;
  line-height: 1;
  font-size: 0.95rem;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.theme-toggle:hover {
  background: rgba(255, 255, 255, 0.08);
}


.theme-toggle-item {
  display: flex;
  align-items: center;
}

:root[data-bs-theme="dark"] {
  color-scheme: dark;
  --bs-body-bg: #1a1a1a;
  --bs-body-color: #e5e7eb;
  --bs-link-color: #ffffff;
  --bs-link-hover-color: #6edff6;
  --bs-border-color: #2d3372;
  --bs-border-color-translucent: rgba(255, 255, 255, 0.893);
  --bs-primary: #facc15;
  --bs-highlight-bg: rgba(250, 204, 21, 0.16);
  --bs-code-color: #fbbf24;
}

:root[data-bs-theme="dark"] body {
  background-color: var(--bs-body-bg);
  color: var(--bs-body-color);
}

:root[data-bs-theme="dark"] a {
  color: var(--bs-link-color);
}
:root[data-bs-theme="dark"] a:hover {
  color: var(--bs-link-hover-color);
}

/* Navbar adjustments in dark mode */
:root[data-bs-theme="dark"] #mainNav {
  background-color: rgba(0, 0, 0, 0.281);
  border-bottom-color: #5d6a7d;
}
:root[data-bs-theme="dark"] #mainNav .navbar-brand,
:root[data-bs-theme="dark"] #mainNav .nav-link {
  color: #3b3b3b;
}
:root[data-bs-theme="dark"] #mainNav .navbar-brand:hover,
:root[data-bs-theme="dark"] #mainNav .nav-link:hover {
  color: #ffffff;
}

/* Force nav links to Capitalize instead of uppercase */
#mainNav .navbar-nav > li.nav-item > a.nav-link {
  text-transform: none;
}
:root[data-bs-theme="dark"] #mainNav.is-fixed {
  background-color: rgba(0, 0, 0, 0.167);
  border-bottom-color: #262626;
}

  /* Code blocks / highlight background tweaks */
:root[data-bs-theme="dark"] mark,
:root[data-bs-theme="dark"] .mark {
  background-color: var(--bs-highlight-bg);
  color: inherit;
}

  /* Buttons inherit in dark mode */
:root[data-bs-theme="dark"] .btn-outline-light {
  color: #e2e8f0;
  border-color: #e2e8f0;
}
:root[data-bs-theme="dark"] .btn-outline-light:hover {
  background: #e2e8f0;
  color: #221e63;
}

:root[data-bs-theme="dark"] .fa-stack .fa-circle {
  color: #d1d1d1 !important;
  transition: color 0.2s ease;
}

:root[data-bs-theme="dark"] .fa-stack .fa-inverse {
  color: #495057 !important;
  transition: color 0.2s ease;
}

:root[data-bs-theme="dark"] .fa-stack:hover .fa-circle {
  color: #ffffff !important;
}

[data-bs-theme="light"] {
    --ecg-line-color: rgba(71, 85, 105, 0.12);
    --ecg-blur: 1px;
    
    --panel-bg: rgba(255, 255, 255, 0.7);
    --panel-border: rgba(0, 0, 0, 0.05);
    --panel-shadow: rgba(0, 0, 0, 0.08);
    --text-primary: rgba(15, 23, 42, 0.9);
    --text-secondary: rgba(100, 116, 139, 0.8);
    --accent-glow: rgba(79, 70, 229, 0.3); 
}

:root[data-bs-theme="dark"] {
    --ecg-line-color: rgba(0, 255, 213, 0.25);
    --ecg-blur: 0.5px;

    --panel-bg: rgba(255, 255, 255, 0.07);
    --panel-border: rgba(255, 255, 255, 0.1);
    --panel-shadow: rgba(0, 0, 0, 0.2);
    --text-primary: rgba(255, 255, 255, 0.9);
    --text-secondary: rgba(255, 255, 255, 0.4);
    --accent-glow: rgba(0, 255, 213, 0.4);
}


#bgCanvas {
    position: fixed; 
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1; 
    opacity: 0.55; 
    filter: blur(var(--ecg-blur)); 
}

.vital-badge {
    position: fixed;
    left: 30px;
    top: 80%;
    transform: translateY(-50%);
    padding: 24px 12px;
    width: 120px;
    height: 120px;
    text-align: center;
    z-index: 0;
    cursor: pointer;
    user-select: none;
    opacity: 0.45;
    
    background: linear-gradient(
        135deg, 
        rgba(255, 255, 255, 0.1) 0%, 
        rgba(255, 255, 255, 0.05) 100%
    );
    backdrop-filter: blur(16px) saturate(180%);
    -webkit-backdrop-filter: blur(16px) saturate(180%);
    
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: 16px;

    box-shadow: 
        inset 0 1px 0 0 rgba(255, 255, 255, 0.2),
        inset 0 -1px 0 0 rgba(255, 255, 255, 0.05),
        0 4px 30px rgba(0, 0, 0, 0.1),
        0 1px 3px rgba(0, 0, 0, 0.05);
    
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.vital-badge:hover {
    background: linear-gradient(
        135deg, 
        rgba(255, 255, 255, 0.15) 0%, 
        rgba(255, 255, 255, 0.08) 100%
    );
    border-color: var(--panel-border);
    box-shadow: 
        inset 0 1px 0 0 rgba(255, 255, 255, 0.3),
        inset 0 -1px 0 0 rgba(255, 255, 255, 0.1),
        0 8px 40px rgba(0, 0, 0, 0.15),
        0 0 20px rgba(var(--accent-rgb), 0.15); /* 使用主题色的光晕 */
    transform: translateY(-50%) scale(1.02);
    opacity: 0.8;
}

.vital-value {
    font-size: clamp(12px, 2vw, 16px); 
    font-weight: 500;
    color: var(--text-primary);
    font-family: 'Orbitron', monospace;
    line-height: 1;
    letter-spacing: 0.05em;
    text-align: center;
    padding-top: 16px;
    opacity: 0.45;
    
    text-shadow: 
        0 0 20px rgba(var(--accent-rgb), 0.4),
        0 2px 4px rgba(0, 0, 0, 0.1);
}

.vital-label {
    font-size: 9px;
    font-family: 'Orbitron', monospace;
    color: var(--text-secondary);
    margin-top: 8px;
    letter-spacing: 2px;
    text-transform: uppercase;
    text-align: center;
    font-weight: 500;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
    opacity: 0.45;
}


@media (max-width: 768px) {
    .vital-badge {
        position: fixed;
        left: 50%;
        bottom: 20px;
        transform: translateX(-50%);
        width: auto;
        height: 80px;
        min-width: 140px;
        padding: 16px 24px;
        align-items: center;
        gap: 12px;
        border-radius: 24px;
        opacity: 0.45;
    }
    
    .vital-badge:hover {
        transform: translateX(-50%) scale(1.02);
    }
    
    .vital-value { 
        font-size: 24px;
        padding-top: 0;
        text-shadow: 0 0 15px rgba(var(--accent-rgb), 0.3);
        opacity: 0.45;
    }
    
    .vital-label { 
        margin-top: 0;
        font-size: 10px;
        opacity: 0.45;
    }
}

/* ============================================================
   Tech Navbar Overrides
   ============================================================ */
#mainNav.tech-nav {
  position: absolute;
  top: 0; left: 0; right: 0;
  z-index: 100;
  font-family: 'Inter', 'Open Sans', system-ui, -apple-system, sans-serif;
  transition: transform 0.35s ease, background-color 0.25s ease, border-color 0.25s ease;
  border-bottom: 1px solid transparent;
}

#mainNav.tech-nav.is-fixed {
  position: fixed;
  top: 0;
  transform: translateY(-100%);
  background: rgba(var(--bs-body-bg-rgb), 0.88);
  backdrop-filter: blur(20px) saturate(160%);
  -webkit-backdrop-filter: blur(20px) saturate(160%);
  border-bottom-color: var(--bs-border-color);
  box-shadow: 0 8px 32px rgba(0,0,0,0.06);
}

#mainNav.tech-nav.is-visible {
  transform: translateY(0);
}

#mainNav.tech-nav .nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  height: 72px;
  padding: 0 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

#mainNav.tech-nav .nav-brand {
  display: flex; align-items: center; gap: 10px;
  color: var(--bs-body-color);
  font-weight: 800;
  font-size: 1.15rem;
  letter-spacing: -0.02em;
  text-decoration: none;
  transition: opacity 0.2s ease;
  flex-shrink: 0;
}

#mainNav.tech-nav .nav-brand:hover { opacity: 0.75; }

#mainNav.tech-nav .nav-prompt {
  color: var(--bs-info);
  font-weight: 400;
  font-family: 'JetBrains Mono', monospace;
  font-size: 1.05rem;
}

#mainNav.tech-nav .nav-toggler {
  display: none;
  background: transparent;
  border: 1px solid var(--bs-border-color);
  color: var(--bs-body-color);
  width: 42px; height: 42px;
  border-radius: 10px;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  transition: all 0.2s ease;
}

#mainNav.tech-nav .nav-toggler:hover {
  border-color: var(--bs-info);
  color: var(--bs-info);
  box-shadow: 0 0 12px rgba(var(--bs-info-rgb), 0.2);
}

#mainNav.tech-nav #navbarResponsive {
  display: flex;
  align-items: center;
}

#mainNav.tech-nav #navbarResponsive.collapse:not(.show) {
  display: flex;
}

#mainNav.tech-nav .nav-menu {
  display: flex;
  align-items: center;
  gap: 6px;
  list-style: none;
  margin: 0; padding: 0;
}

#mainNav.tech-nav .nav-menu a {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 8px 18px;
  border-radius: 8px;
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--bs-secondary-color);
  text-decoration: none;
  position: relative;
  transition: all 0.2s ease;
  white-space: nowrap;
}

#mainNav.tech-nav .nav-menu a:hover {
  color: var(--bs-body-color);
  background: rgba(var(--bs-info-rgb), 0.06);
}

#mainNav.tech-nav .nav-menu a.active {
  color: var(--bs-info);
  background: rgba(var(--bs-info-rgb), 0.08);
}

#mainNav.tech-nav .nav-menu a.active::after {
  content: '';
  position: absolute;
  bottom: -2px; left: 18px; right: 18px;
  height: 2px;
  background: var(--bs-info);
  border-radius: 2px;
  box-shadow: 0 0 10px rgba(var(--bs-info-rgb), 0.5);
}

#mainNav.tech-nav .theme-item {
  display: flex;
  align-items: center;
}

#mainNav.tech-nav .theme-toggle {
  width: 36px; height: 36px;
  border-radius: 50%;
  border: 1px solid var(--bs-border-color);
  background: transparent;
  color: var(--bs-secondary-color);
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.9rem;
  margin-left: 10px;
  transition: all 0.25s ease;
}

#mainNav.tech-nav .theme-toggle:hover {
  border-color: var(--bs-info);
  color: var(--bs-info);
  box-shadow: 0 0 14px rgba(var(--bs-info-rgb), 0.3);
}

/* System status indicator */
#mainNav.tech-nav .sys-status-item {
  display: flex;
  align-items: center;
}

#mainNav.tech-nav .sys-status {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  border-radius: 20px;
  border: 1px solid var(--bs-border-color);
  background: transparent;
  cursor: pointer;
  font-family: 'Orbitron', monospace;
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--bs-secondary-color);
  transition: all 0.25s ease;
  white-space: nowrap;
}

#mainNav.tech-nav .sys-status:hover {
  border-color: var(--bs-info);
  color: var(--bs-body-color);
  background: rgba(var(--bs-info-rgb), 0.06);
  box-shadow: 0 0 12px rgba(var(--bs-info-rgb), 0.15);
}

#mainNav.tech-nav .sys-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #10b981;
  box-shadow: 0 0 6px rgba(16, 185, 129, 0.6);
  animation: sys-pulse 2.4s ease-in-out infinite;
  flex-shrink: 0;
}

[data-bs-theme="dark"] #mainNav.tech-nav .sys-dot {
  background: #00ffd5;
  box-shadow: 0 0 8px rgba(0, 255, 213, 0.6);
}

#mainNav.tech-nav .sys-dot.offline {
  background: #9ca3af !important;
  box-shadow: none !important;
  animation: none;
}

@keyframes sys-pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.8); }
}

#mainNav.tech-nav .sys-text {
  letter-spacing: 0.04em;
}

@media (max-width: 991px) {
  #mainNav.tech-nav .nav-toggler { display: flex; }
  #mainNav.tech-nav #navbarResponsive {
    position: absolute;
    top: 72px; left: 0; right: 0;
    background: rgba(var(--bs-body-bg-rgb), 0.96);
    backdrop-filter: blur(24px);
    border-bottom: 1px solid var(--bs-border-color);
    padding: 16px 32px;
    display: none;
  }
  #mainNav.tech-nav #navbarResponsive.collapse:not(.show) { display: none; }
  #mainNav.tech-nav #navbarResponsive.collapse.show { display: block; }
  #mainNav.tech-nav .nav-menu { flex-direction: column; align-items: stretch; gap: 6px; }
  #mainNav.tech-nav .nav-menu a { justify-content: flex-start; padding: 12px 18px; font-size: 0.95rem; }
  #mainNav.tech-nav .theme-item { margin-top: 6px; }
  #mainNav.tech-nav .theme-toggle { margin-left: 6px; }
  #mainNav.tech-nav .sys-status-item { margin-top: 6px; }
  #mainNav.tech-nav .sys-status {
    justify-content: flex-start;
    padding: 10px 16px;
    font-size: 0.85rem;
    width: 100%;
  }
}

.copyright {
  margin: auto;
  text-align: center;
  font-family: var(--bs-font-mono);
  font-size: 1rem;
  color: var(--text-2);
  opacity: 0.7;
}