*,
*::before,
*::after {
  box-sizing: border-box;
}

:root {
  --bg-main-light: #f5f5f7;
  --bg-main-dark: #050509;
  --card-bg-light: rgba(255, 255, 255, 0.9);
  --card-bg-dark: rgba(15, 15, 20, 0.9);
  --border-light: rgba(0, 0, 0, 0.06);
  --border-dark: rgba(255, 255, 255, 0.06);
  --text-main-light: #1d1d1f;
  --text-main-dark: #f5f5f7;
  --text-sub-light: #6e6e73;
  --text-sub-dark: #a1a1aa;
  --accent-blue: #007aff;
  --accent-pink: #ff2d55;
  --accent-green: #34c759;
  --shadow-soft: 0 18px 40px rgba(0, 0, 0, 0.15);
  --radius-xl: 22px;
  --radius-lg: 18px;
  --radius-pill: 999px;
  --blur-bg: 20px;
}

html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "SF Pro Text",
    "Helvetica Neue", Arial, sans-serif;
}

body.app {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  position: relative;
  color: var(--text-main-light);
  background: radial-gradient(circle at top left, #ffe6f0 0, transparent 55%),
              radial-gradient(circle at bottom right, #e0eeff 0, transparent 55%),
              var(--bg-main-light);
  padding: 16px;
}

body.app-dark {
  color: var(--text-main-dark);
  background: radial-gradient(circle at top left, #251526 0, transparent 55%),
              radial-gradient(circle at bottom right, #081121 0, transparent 55%),
              var(--bg-main-dark);
}

body.app-light .app-bg {
  opacity: 0.7;
}

.app-bg {
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(circle at 10% 20%, rgba(255, 255, 255, 0.18) 0, transparent 55%),
    radial-gradient(circle at 80% 0%, rgba(0, 122, 255, 0.18) 0, transparent 55%),
    radial-gradient(circle at 0% 100%, rgba(255, 45, 85, 0.18) 0, transparent 55%);
  filter: blur(60px);
  opacity: 0.35;
  transition: opacity 0.3s ease;
  z-index: -1;
}

.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin: 8px auto 16px;
  max-width: 1120px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
}

.brand-icon {
  width: 40px;
  height: 40px;
  border-radius: 16px;
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-pink));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 24px;
  box-shadow: var(--shadow-soft);
}

.brand-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.brand-title {
  font-weight: 700;
  font-size: 20px;
  letter-spacing: 0.02em;
}

.brand-sub {
  font-size: 13px;
  color: var(--text-sub-light);
}

.app-dark .brand-sub {
  color: var(--text-sub-dark);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.btn {
  border-radius: var(--radius-pill);
  border: 1px solid transparent;
  padding: 8px 16px;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  outline: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  transition: all 0.18s ease;
  text-decoration: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-pink));
  color: #fff;
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.22);
}

.btn-primary:hover {
  transform: translateY(-1px) scale(1.01);
  box-shadow: 0 14px 30px rgba(0, 0, 0, 0.28);
}

.btn-ghost {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.26);
  color: inherit;
  backdrop-filter: blur(20px);
}

.app-light .btn-ghost {
  background: rgba(255, 255, 255, 0.8);
  border-color: rgba(0, 0, 0, 0.06);
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.18);
}

/* 主体 */

.app-main {
  flex: 1;
  max-width: 1120px;
  width: 100%;
  margin: 0 auto 16px;
}

.search-section {
  margin-bottom: 16px;
}

.search-section input {
  width: 100%;
  padding: 12px 16px;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(255, 255, 255, 0.7);
  background: rgba(255, 255, 255, 0.75);
  outline: none;
  font-size: 14px;
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.12);
  backdrop-filter: blur(20px);
}

.app-dark .search-section input {
  background: rgba(15, 15, 20, 0.96);
  border-color: rgba(255, 255, 255, 0.1);
  color: var(--text-main-dark);
  box-shadow: 0 12px 36px rgba(0, 0, 0, 0.6);
}

.section-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.nav-section {
  border-radius: var(--radius-xl);
  padding: 18px 18px 16px;
  background: var(--card-bg-light);
  border: 1px solid var(--border-light);
  backdrop-filter: blur(var(--blur-bg));
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.18);
}

.app-dark .nav-section {
  background: var(--card-bg-dark);
  border-color: var(--border-dark);
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.75);
}

.nav-section-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 12px;
}

.nav-section-title {
  margin: 0;
  font-size: 17px;
  font-weight: 650;
}

.nav-section-subtitle {
  margin: 2px 0 0;
  font-size: 13px;
  color: var(--text-sub-light);
}

.app-dark .nav-section-subtitle {
  color: var(--text-sub-dark);
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(210px, 1fr));
  gap: 12px;
}

.nav-card {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 10px 12px;
  border-radius: var(--radius-lg);
  text-decoration: none;
  color: inherit;
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid rgba(0, 0, 0, 0.04);
  box-shadow: 0 8px 22px rgba(0, 0, 0, 0.06);
  backdrop-filter: blur(10px);
  transition: all 0.16s ease;
}

.app-dark .nav-card {
  background: rgba(10, 10, 15, 0.98);
  border-color: rgba(255, 255, 255, 0.03);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.9);
}

.nav-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.25);
  border-color: rgba(0, 122, 255, 0.35);
}

.nav-card-icon {
  min-width: 30px;
  height: 30px;
  border-radius: 12px;
  background: radial-gradient(circle at 20% 0%, #fff 0, transparent 45%),
              linear-gradient(135deg, var(--accent-blue), var(--accent-pink));
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 17px;
  box-shadow: 0 10px 22px rgba(0, 122, 255, 0.45);
}

.nav-card-content {
  flex: 1;
  min-width: 0;
}

.nav-card-title-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 6px;
}

.nav-card-title {
  font-size: 14px;
  font-weight: 600;
  white-space: nowrap;
  text-overflow: ellipsis;
  overflow: hidden;
}

.nav-card-badge {
  font-size: 11px;
  padding: 2px 8px;
  border-radius: 999px;
  background: rgba(0, 122, 255, 0.12);
  color: var(--accent-blue);
}

.nav-card-desc {
  margin-top: 4px;
  font-size: 12px;
  color: var(--text-sub-light);
}

.app-dark .nav-card-desc {
  color: var(--text-sub-dark);
}

.nav-card-meta {
  margin-top: 2px;
  font-size: 11px;
  color: var(--text-sub-light);
}

/* 后台 */

.admin-main {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.card.admin-card {
  border-radius: var(--radius-xl);
  padding: 16px 18px;
  background: var(--card-bg-light);
  border: 1px solid var(--border-light);
  backdrop-filter: blur(var(--blur-bg));
  box-shadow: var(--shadow-soft);
}

.app-dark .card.admin-card {
  background: var(--card-bg-dark);
  border-color: var(--border-dark);
}

.card.admin-card h2 {
  margin: 0 0 6px;
  font-size: 16px;
}

.hint {
  margin: 0 0 10px;
  font-size: 12px;
  color: var(--text-sub-light);
}

.app-dark .hint {
  color: var(--text-sub-dark);
}

.form-row {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-row label {
  font-size: 13px;
  font-weight: 500;
}

.form-row input {
  border-radius: 10px;
  padding: 8px 10px;
  border: 1px solid rgba(0, 0, 0, 0.08);
  outline: none;
  font-size: 13px;
  background: rgba(255, 255, 255, 0.9);
}

.app-dark .form-row input {
  background: rgba(15, 15, 20, 0.96);
  border-color: rgba(255, 255, 255, 0.1);
  color: var(--text-main-dark);
}

.admin-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 10px;
}

.admin-toolbar h2 {
  margin: 0;
}

.admin-buttons {
  display: flex;
  align-items: center;
  gap: 8px;
}

#configText {
  width: 100%;
  min-height: 280px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas,
    "Liberation Mono", "Courier New", monospace;
  font-size: 12px;
  padding: 10px 12px;
  border-radius: 14px;
  border: 1px solid rgba(0, 0, 0, 0.08);
  resize: vertical;
  background: rgba(255, 255, 255, 0.95);
}

.app-dark #configText {
  background: rgba(8, 8, 12, 0.96);
  border-color: rgba(255, 255, 255, 0.08);
  color: var(--text-main-dark);
}

.status-text {
  margin-top: 6px;
  font-size: 12px;
  color: var(--text-sub-light);
}

.app-dark .status-text {
  color: var(--text-sub-dark);
}

.status-error {
  color: #ff3b30;
}

/* 页脚 */

.app-footer {
  max-width: 1120px;
  width: 100%;
  margin: 0 auto;
  padding: 6px 4px;
  font-size: 11px;
  color: var(--text-sub-light);
}

.app-dark .app-footer {
  color: var(--text-sub-dark);
}

/* 响应式 */

@media (max-width: 768px) {
  body.app {
    padding: 10px;
  }

  .app-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .card-grid {
    grid-template-columns: repeat(auto-fill, minmax(170px, 1fr));
  }
}