:root {
  --color-bg: #fbfbfb;
  --color-text: #212121;
  --color-accent: #006f8e;
  --color-border: #e2e8f0;
  --color-border-dashed: #cbd5e1;
  --color-card: #ffffff;
  --color-card-hover: #f8fafc;
  --color-muted: #64748b;
  --color-success: #10b981;
  --color-danger: #ef4444;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: "IBM Plex Mono", Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  --site-width: 820px;
}

[data-theme="dark"] {
  --color-bg: #14161b;
  --color-text: #eaeaea;
  --color-accent: #00b4d8;
  --color-border: #2c313a;
  --color-border-dashed: #3d4451;
  --color-card: #1c2027;
  --color-card-hover: #222730;
  --color-muted: #94a3b8;
  --color-success: #10b981;
  --color-danger: #f87171;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  transition: background-color 0.25s ease, color 0.25s ease;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.15s ease;
}

/* App Shell Container */
.site-container {
  width: 100%;
  max-width: var(--site-width);
  margin: 0 auto;
  padding: 0 1.5rem;
  display: flex;
  flex-direction: column;
}

.site-viewport-wrapper {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  min-height: 100dvh;
}

/* Header */
header.site-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 2rem 0 1.5rem 0;
  border-bottom: 1px dashed var(--color-border-dashed);
}

.brand-link {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  font-weight: 700;
  font-size: 1.35rem;
  letter-spacing: -0.02em;
}

.brand-icon {
  width: 28px;
  height: 28px;
  border-radius: 6px;
  object-fit: contain;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.icon-btn {
  background: none;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  padding: 0.45rem;
  cursor: pointer;
  color: var(--color-text);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: all 0.15s ease;
}

.icon-btn:hover {
  color: var(--color-accent);
  border-color: var(--color-accent);
}

.icon-btn svg {
  width: 18px;
  height: 18px;
}

.theme-icon-sun { display: none; }
.theme-icon-moon { display: block; }
[data-theme="dark"] .theme-icon-sun { display: block; }
[data-theme="dark"] .theme-icon-moon { display: none; }

/* Main Content */
main#main-content {
  flex: 1;
  padding: 2.25rem 0 3rem 0;
}

/* Hero Section */
.hero-section {
  margin-bottom: 2rem;
}

.hero-title {
  font-size: 2.2rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--color-text);
  margin-bottom: 0.5rem;
}

.hero-subtitle {
  color: var(--color-muted);
  font-size: 1.05rem;
  line-height: 1.5;
}

/* Live Filter / Search Bar */
.search-bar-row {
  margin: 0 0 1.75rem 0;
  position: relative;
}

.search-input {
  width: 100%;
  padding: 0.75rem 1rem 0.75rem 2.6rem;
  font-size: 0.95rem;
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  color: var(--color-text);
  outline: none;
  font-family: inherit;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.search-input:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(0, 180, 216, 0.15);
}

.search-icon-hint {
  position: absolute;
  left: 0.9rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-muted);
  pointer-events: none;
  display: flex;
  align-items: center;
}

.search-icon-hint svg {
  width: 17px;
  height: 17px;
}

/* Navigation Cards Grid (双列卡片) */
.nav-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.15rem;
}

@media (max-width: 640px) {
  .nav-grid {
    grid-template-columns: 1fr;
    gap: 0.95rem;
  }
}

/* Navigation Card Item (Astro-Paper Minimalist Card) */
.nav-card {
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: 0.95rem;
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: 10px;
  padding: 1.1rem;
  text-decoration: none;
  transition: transform 0.18s ease, border-color 0.18s ease, box-shadow 0.18s ease, background-color 0.18s ease;
}

.nav-card:hover {
  border-color: var(--color-accent);
  background-color: var(--color-card-hover);
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.04);
}

[data-theme="dark"] .nav-card:hover {
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.25);
}

/* Card Icon (优雅搭配的底衬色，在浅色与暗色模式下均保持和谐质感与清晰对比) */
.nav-card-icon-box {
  width: 42px;
  height: 42px;
  min-width: 42px;
  border-radius: 9px;
  background-color: #f1f5f9;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  border: 1px solid var(--color-border);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
  flex-shrink: 0;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.nav-card:hover .nav-card-icon-box {
  transform: scale(1.04);
}

[data-theme="dark"] .nav-card-icon-box {
  background-color: #3d4556;
  border-color: #4e5869;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
}

.nav-card-icon {
  width: 26px;
  height: 26px;
  object-fit: contain;
}

[data-theme="dark"] .nav-card-icon {
  filter: drop-shadow(0 0 1px rgba(255, 255, 255, 0.45));
}

/* Card Body */
.nav-card-body {
  flex: 1;
  min-width: 0;
}

.nav-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  margin-bottom: 0.35rem;
}

.nav-card-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  transition: color 0.15s ease;
}

.nav-card:hover .nav-card-title {
  color: var(--color-accent);
}

.badge-private {
  font-size: 0.7rem;
  padding: 0.1rem 0.4rem;
  border-radius: 4px;
  background-color: rgba(245, 158, 11, 0.12);
  color: #b45309;
  border: 1px solid rgba(245, 158, 11, 0.28);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  white-space: nowrap;
  flex-shrink: 0;
}

[data-theme="dark"] .badge-private {
  background-color: rgba(245, 158, 11, 0.2);
  color: #fbbf24;
  border-color: rgba(245, 158, 11, 0.4);
}

.nav-card-desc {
  font-size: 0.88rem;
  color: var(--color-muted);
  line-height: 1.45;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* Red / Green / Yellow Status Indicator Dot (红绿黄状态微标) */
.status-indicator-wrap {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.15rem 0.5rem;
  border-radius: 9999px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  background-color: rgba(0, 0, 0, 0.04);
  white-space: nowrap;
}

[data-theme="dark"] .status-indicator-wrap {
  background-color: rgba(255, 255, 255, 0.06);
}

.status-dot {
  width: 8px;
  height: 8px;
  min-width: 8px;
  border-radius: 50%;
  display: inline-block;
  position: relative;
  flex-shrink: 0;
}

/* Green - Online */
.status-dot.online,
.status-dot.status-online {
  background-color: #10b981;
  box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.6);
  animation: pulseGreen 2.2s infinite cubic-bezier(0.66, 0, 0, 1);
}

/* Yellow - Warning / Checking / Degraded */
.status-dot.warning,
.status-dot.degraded,
.status-dot.checking,
.status-dot.status-warning {
  background-color: #f59e0b;
  box-shadow: 0 0 0 0 rgba(245, 158, 11, 0.6);
  animation: pulseYellow 2.2s infinite cubic-bezier(0.66, 0, 0, 1);
}

/* Red - Offline */
.status-dot.offline,
.status-dot.status-offline {
  background-color: #ef4444;
  box-shadow: none;
}

@keyframes pulseGreen {
  0% {
    box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.65);
  }
  70% {
    box-shadow: 0 0 0 6px rgba(16, 185, 129, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(16, 185, 129, 0);
  }
}

@keyframes pulseYellow {
  0% {
    box-shadow: 0 0 0 0 rgba(245, 158, 11, 0.65);
  }
  70% {
    box-shadow: 0 0 0 6px rgba(245, 158, 11, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(245, 158, 11, 0);
  }
}

/* Copyright Section (首屏底部版权声明栏) */
.site-copyright-bar {
  border-top: 1px dashed var(--color-border-dashed);
  padding: 1.5rem 0 0.45rem 0;
  font-size: 0.88rem;
  line-height: 1.4;
  color: var(--color-muted);
  display: flex;
  align-items: center;
  justify-content: flex-start;
}

/* ICP Footer Section (紧贴版权声明下方，向下滚动展示，间距紧凑自然) */
footer.site-icp-footer,
footer.site-footer {
  padding: 0 0 1.75rem 0;
  display: flex;
  align-items: center;
  justify-content: flex-start;
}

.footer-icp-row {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  flex-wrap: wrap;
  font-size: 0.76rem;
  color: #94a3b8;
  opacity: 0.85;
}

[data-theme="dark"] .footer-icp-row {
  color: #64748b;
  opacity: 0.88;
}

.footer-icp-link {
  color: inherit;
  text-decoration: none;
  transition: color 0.15s ease, opacity 0.15s ease;
}

.footer-icp-link:hover {
  color: var(--color-accent);
  opacity: 1;
  text-decoration: underline dashed;
}

.icp-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

/* Admin Styles */
.admin-navbar {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  font-size: 0.95rem;
}

.admin-nav-link {
  color: var(--color-muted);
  font-weight: 500;
  padding: 0.25rem 0;
  border-bottom: 2px solid transparent;
  transition: all 0.15s ease;
}

.admin-nav-link:hover,
.admin-nav-link.active {
  color: var(--color-accent);
  border-bottom-color: var(--color-accent);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.55rem 1.15rem;
  font-size: 0.92rem;
  font-weight: 600;
  border-radius: 6px;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all 0.15s ease;
  font-family: inherit;
  white-space: nowrap;
}

.btn-primary {
  background-color: var(--color-accent);
  color: #ffffff;
}

.btn-primary:hover {
  opacity: 0.9;
}

.btn-secondary {
  background-color: var(--color-card);
  border-color: var(--color-border);
  color: var(--color-text);
}

.btn-secondary:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.btn-danger {
  background-color: var(--color-danger);
  color: #ffffff;
}

.btn-danger:hover {
  opacity: 0.9;
}

.btn-sm {
  padding: 0.35rem 0.65rem;
  font-size: 0.82rem;
  white-space: nowrap;
}

/* Form Groups */
.form-group {
  margin-bottom: 1.25rem;
}

.form-label {
  display: block;
  font-size: 0.92rem;
  font-weight: 600;
  margin-bottom: 0.4rem;
  color: var(--color-text);
}

.form-input, .form-textarea, .form-select {
  width: 100%;
  padding: 0.65rem 0.85rem;
  font-size: 0.95rem;
  border-radius: 6px;
  border: 1px solid var(--color-border);
  background-color: var(--color-card);
  color: var(--color-text);
  font-family: inherit;
  outline: none;
  transition: border-color 0.15s ease;
}

.form-input:focus, .form-textarea:focus, .form-select:focus {
  border-color: var(--color-accent);
}

/* Tables */
.admin-table-container {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: 10px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.admin-table {
  width: 100%;
  min-width: 780px;
  border-collapse: collapse;
}

.admin-table th, .admin-table td {
  padding: 0.85rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
  vertical-align: middle;
}

.admin-table th {
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-muted);
  white-space: nowrap;
}

.admin-actions-cell {
  text-align: right;
  white-space: nowrap;
  min-width: 130px;
}

.admin-actions-wrap {
  display: inline-flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.4rem;
  white-space: nowrap;
}

.admin-icon-box {
  width: 32px;
  height: 32px;
  border-radius: 6px;
  background-color: #f1f5f9;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-border);
  overflow: hidden;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.04);
}

[data-theme="dark"] .admin-icon-box {
  background-color: #3d4556;
  border-color: #4e5869;
}

.admin-table-icon {
  width: 20px;
  height: 20px;
  object-fit: contain;
}

[data-theme="dark"] .admin-table-icon {
  filter: drop-shadow(0 0 1px rgba(255, 255, 255, 0.45));
}

/* Alerts */
.alert {
  padding: 0.75rem 1rem;
  border-radius: 6px;
  margin-bottom: 1.25rem;
  font-size: 0.92rem;
}

.alert-success {
  background-color: rgba(16, 185, 129, 0.12);
  color: #065f46;
  border: 1px solid rgba(16, 185, 129, 0.3);
}

[data-theme="dark"] .alert-success {
  color: #34d399;
}

.alert-danger {
  background-color: rgba(239, 68, 68, 0.12);
  color: #991b1b;
  border: 1px solid rgba(239, 68, 68, 0.3);
}

[data-theme="dark"] .alert-danger {
  color: #f87171;
}

/* Modal */
.modal-backdrop {
  display: none;
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background-color: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
  z-index: 1000;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}

.modal-backdrop.active {
  display: flex;
}

.modal-card {
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  width: 100%;
  max-width: 520px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
  padding: 1.75rem;
}