:root {
  --primary-color: #2c3e50;
  --secondary-color: #3498db;
  --accent-color: #e74c3c;
  --text-color: #212529;
  --text-light: #6c757d;
  --text-muted: #adb5bd;
  --bg-color: #fff;
  --bg-light: #f8f9fa;
  --border-color: #e9ecef;
  --shadow: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -1px rgba(0,0,0,0.06);
  --shadow-hover: 0 20px 25px -5px rgba(0,0,0,0.1), 0 10px 10px -5px rgba(0,0,0,0.04);
  --sidebar-width: 260px;
  --transition: all 300ms cubic-bezier(0, 0, 0.2, 1);
  --color-white: #fff;
  --color-black: #000;
  --opacity-10: 0.1;
  --opacity-20: 0.2;
  --opacity-30: 0.3;
  --opacity-40: 0.4;
  --opacity-50: 0.5;
  --opacity-60: 0.6;
  --opacity-70: 0.7;
  --opacity-80: 0.8;
  --opacity-90: 0.9;
  --btn-height-sm: 32px;
  --btn-height-md: 40px;
  --btn-height-lg: 48px;
  --btn-padding-x-sm: 0.75rem;
  --btn-padding-x-md: 1rem;
  --btn-padding-x-lg: 1.5rem;
  --icon-xs: 0.75rem;
  --icon-sm: 1rem;
  --icon-md: 1.25rem;
  --icon-lg: 1.5rem;
  --icon-xl: 2rem;
  --radius-xs: 2px;
  --radius-sm: 4px;
  --radius-base: 0.375rem;
  --radius-md: 6px;
  --radius-lg: 8px;
  --radius-xl: 12px;
  --radius-full: 50%;
  --radius-pill: 14px;
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-xxl: 3rem;
  --spacing-tight: 0.5rem;
  --spacing-element: 1rem;
  --spacing-component: 2rem;
  --spacing-section: 4rem;
}
:root[data-theme='dark'] {
  --primary-color: #34495e;
  --secondary-color: #3498db;
  --accent-color: #e74c3c;
  --text-color: #f5f5f5;
  --text-light: #a3a3a3;
  --text-muted: #737373;
  --bg-color: #1a1a1a;
  --bg-light: #2d2d2d;
  --border-color: #404040;
  --shadow: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -2px rgba(0,0,0,0.05);
  --shadow-hover: 0 25px 50px -12px rgba(0,0,0,0.25);
  --dark-heading-color: var(--primary-color);
  --dark-heading-shadow: 0 1px 2px rgba(0,0,0,0.3);
  --dark-text-shadow: 0 1px 1px rgba(0,0,0,0.2);
  --dark-content-bg: rgba(26,26,26,0.95);
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --primary-color: #34495e;
    --secondary-color: #3498db;
    --accent-color: #e74c3c;
    --text-color: #e8e8e8;
    --text-light: #b8b8b8;
    --text-muted: #888;
    --bg-color: #1a1a1a;
    --bg-light: #2d2d2d;
    --border-color: #404040;
    --shadow: 0 2px 10px rgba(0,0,0,0.3);
    --shadow-hover: 0 4px 20px rgba(0,0,0,0.4);
  }
}
@media (prefers-contrast: high) {
  :root {
    --text-color: #000;
    --text-light: #333;
    --text-muted: #666;
    --bg-color: #fff;
    --bg-light: #f0f0f0;
    --border-color: #ccc;
    --shadow: 0 2px 10px rgba(0,0,0,0.3);
  }
}
.theme-transitioning * {
  transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease, opacity 0.3s ease, text-shadow 0.3s ease !important;
}
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
  line-height: 1.6;
  color: var(--text-color);
  background-color: var(--bg-color);
  transition: background-color 0.3s ease, color 0.3s ease;
  min-height: 100vh;
}
a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition);
}
h1,
h2,
h3,
h4,
h5,
h6 {
  color: var(--primary-color);
  line-height: 1.3;
}
img {
  max-width: 100%;
  height: auto;
}
button {
  font-family: inherit;
  cursor: pointer;
}
input,
textarea {
  font-family: inherit;
  outline: none;
}
ul,
ol {
  list-style: none;
}
table {
  border-collapse: collapse;
  width: 100%;
}
code {
  font-family: 'Courier New', monospace;
}
::selection {
  background: rgba(52,152,219,0.2);
  color: var(--text-color);
}
:focus-visible {
  outline: 2px solid var(--secondary-color);
  outline-offset: 2px;
}
[disabled] {
  opacity: 0.6;
  cursor: not-allowed;
}
.sr-only,
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}
.clearfix::after {
  content: '';
  display: table;
  clear: both;
}
.container {
  min-height: 100vh;
}
.main-content {
  flex: 1;
  min-height: 100vh;
  background: var(--bg-color);
  transition: background-color 0.3s ease, opacity 0.3s ease;
  margin-left: 260px;
  padding: 1rem 0.5rem;
}
.mobile-menu-toggle {
  position: fixed;
  top: 1rem;
  left: 1rem;
  z-index: 9999;
  display: none;
}
.menu-btn {
  background: var(--primary-color);
  border: none;
  width: var(--btn-width-lg);
  height: var(--btn-height-lg);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 4px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.15);
  backdrop-filter: blur(10px);
}
.menu-btn:hover {
  background: #2980b9;
  transform: scale(1.05);
  box-shadow: 0 4px 12px rgba(0,0,0,0.25);
}
.menu-btn:active {
  transform: scale(0.95);
}
.menu-btn span {
  width: var(--icon-lg);
  height: 2px;
  background: var(--color-white);
  border-radius: 1px;
  transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  transform-origin: center;
}
.menu-btn.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}
.menu-btn.active span:nth-child(2) {
  opacity: 0;
  transform: scale(0);
}
.menu-btn.active span:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -6px);
}
.mobile-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0,0,0,0.5);
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transition: opacity 350ms cubic-bezier(0.25, 0.46, 0.45, 0.94), visibility 350ms cubic-bezier(0.25, 0.46, 0.45, 0.94);
  pointer-events: none;
  display: none;
  will-change: opacity;
}
.mobile-overlay.active {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}
:root[data-theme='dark'] .mobile-overlay {
  background: rgba(0,0,0,0.7);
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) .mobile-overlay {
    background: rgba(0,0,0,0.7);
  }
}
.page-header {
  margin-bottom: 1rem;
  text-align: center;
}
.page-title {
  font-size: 2.2rem;
  color: var(--primary-color);
  margin-bottom: 0.25rem;
}
.page-description {
  color: var(--text-light);
  font-size: 1rem;
}
.resources-grid {
  display: grid;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
  grid-auto-rows: 1fr;
  align-items: stretch;
  grid-template-columns: repeat(4, 1fr);
}
@media (max-width: 1199px) {
  .resources-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}
.content-wrapper {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 0.5rem;
}
.section {
  margin-bottom: 1.5rem;
}
.section:last-child {
  margin-bottom: 0;
}
.d-flex {
  display: flex;
}
.flex-column {
  flex-direction: column;
}
.flex-wrap {
  flex-wrap: wrap;
}
.justify-content-center {
  justify-content: center;
}
.justify-content-between {
  justify-content: space-between;
}
.align-items-center {
  align-items: center;
}
.align-items-start {
  align-items: flex-start;
}
.align-items-end {
  align-items: flex-end;
}
.m-0 {
  margin: 0;
}
.mt-xs {
  margin-top: 0.25rem;
}
.mb-xs {
  margin-bottom: 0.25rem;
}
.p-xs {
  padding: 0.25rem;
}
.mt-1 {
  margin-top: 0.5rem;
}
.mt-2 {
  margin-top: 1rem;
}
.mt-3 {
  margin-top: 1.5rem;
}
.mb-1 {
  margin-bottom: 0.5rem;
}
.mb-2 {
  margin-bottom: 1rem;
}
.mb-3 {
  margin-bottom: 1.5rem;
}
.p-0 {
  padding: 0;
}
.pt-1 {
  padding-top: 0.5rem;
}
.pt-2 {
  padding-top: 1rem;
}
.pt-3 {
  padding-top: 1.5rem;
}
.pb-1 {
  padding-bottom: 0.5rem;
}
.pb-2 {
  padding-bottom: 1rem;
}
.pb-3 {
  padding-bottom: 1.5rem;
}
.compact-spacing {
  margin: 0.25rem;
  padding: 0.25rem;
}
.text-center {
  text-align: center;
}
.text-left {
  text-align: left;
}
.text-right {
  text-align: right;
}
.text-muted {
  color: var(--text-muted);
}
.text-light {
  color: var(--text-light);
}
.text-primary {
  color: var(--primary-color);
}
.text-secondary {
  color: var(--secondary-color);
}
.base-card,
.resource-card,
.info-card,
.stats-card {
  background: var(--bg-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  border: 1px solid var(--border-color);
  transition: var(--transition);
  overflow: hidden;
}
.base-card--elevated,
.resource-card--elevated,
.info-card--elevated,
.stats-card--elevated {
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}
.base-card--flat,
.resource-card--flat,
.info-card--flat,
.stats-card--flat {
  box-shadow: none;
  border: 1px solid var(--border-color);
}
.base-card--outlined,
.resource-card--outlined,
.info-card--outlined,
.stats-card--outlined {
  background: transparent;
  border: 2px solid var(--border-color);
  box-shadow: none;
}
.base-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: var(--btn-padding-x-md) var(--btn-padding-x-lg);
  border: none;
  border-radius: var(--radius-base);
  font-family: inherit;
  font-size: 1rem;
  font-weight: 500;
  line-height: 1;
  text-decoration: none;
  cursor: pointer;
  transition: var(--transition);
  user-select: none;
  white-space: nowrap;
}
.base-button--sm {
  height: var(--btn-height-sm);
  padding: var(--btn-padding-x-sm) var(--btn-padding-x-md);
  font-size: 0.875rem;
}
.base-button--md {
  height: var(--btn-height-md);
  padding: var(--btn-padding-x-md) var(--btn-padding-x-lg);
  font-size: 1rem;
}
.base-button--lg {
  height: var(--btn-height-lg);
  padding: var(--btn-padding-x-lg) var(--spacing-xl);
  font-size: 1.125rem;
}
.base-button--primary {
  background: var(--primary-color);
  color: var(--color-white);
}
.base-button--primary:hover {
  background: #283848;
  transform: translateY(-1px);
}
.base-button--primary:active {
  transform: translateY(0);
}
.base-button--secondary {
  background: var(--secondary-color);
  color: var(--color-white);
}
.base-button--secondary:hover {
  background: #258bcf;
  transform: translateY(-1px);
}
.base-button--outline {
  background: transparent;
  color: var(--primary-color);
  border: 1px solid var(--primary-color);
}
.base-button--outline:hover {
  background: var(--primary-color);
  color: var(--color-white);
}
.base-button--ghost {
  background: transparent;
  color: var(--text-color);
}
.base-button--ghost:hover {
  background: var(--bg-light);
}
.base-button:disabled {
  opacity: var(--opacity-50);
  cursor: not-allowed;
  transform: none !important;
}
.base-input {
  width: 100%;
  height: var(--input-height);
  padding: 0 var(--spacing-md);
  background: var(--bg-color);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-base);
  font-family: inherit;
  font-size: var(--input-font-size);
  color: var(--text-color);
  transition: var(--transition);
}
.base-input::placeholder {
  color: var(--text-muted);
}
.base-input:focus {
  outline: none;
  border-color: var(--border-focus);
  box-shadow: 0 0 0 var(--focus-ring-width) var(--focus-ring-color);
}
.base-input:disabled {
  background: var(--bg-light);
  color: var(--text-disabled);
  cursor: not-allowed;
}
.base-input--error {
  border-color: var(--color-error);
}
.base-input--error:focus {
  border-color: var(--color-error);
  box-shadow: 0 0 0 var(--focus-ring-width) rgba(220,53,69,0.3);
}
.base-input--success {
  border-color: var(--color-success);
}
.base-input--success:focus {
  border-color: var(--color-success);
  box-shadow: 0 0 0 var(--focus-ring-width) rgba(40,167,69,0.3);
}
.base-tag {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-xs) var(--spacing-sm);
  background: rgba(52,152,219,0.1);
  color: var(--secondary-color);
  border-radius: var(--radius-pill);
  font-size: 0.75rem;
  font-weight: 500;
  text-decoration: none;
  transition: var(--transition);
}
.base-tag:hover {
  background: rgba(52,152,219,0.2);
  transform: translateY(-1px);
}
.base-tag--primary {
  background: rgba(44,62,80,0.1);
  color: var(--primary-color);
}
.base-tag--primary:hover {
  background: rgba(44,62,80,0.2);
}
.base-tag--success {
  background: rgba(40,167,69,0.1);
  color: var(--color-success);
}
.base-tag--success:hover {
  background: rgba(40,167,69,0.2);
}
.base-tag--warning {
  background: rgba(255,193,7,0.1);
  color: var(--color-warning);
}
.base-tag--warning:hover {
  background: rgba(255,193,7,0.2);
}
.base-tag--error {
  background: rgba(220,53,69,0.1);
  color: var(--color-error);
}
.base-tag--error:hover {
  background: rgba(220,53,69,0.2);
}
.base-container {
  width: 100%;
  max-width: var(--content-max-width);
  margin: 0 auto;
  padding: 0 var(--content-padding);
}
.base-container--fluid {
  max-width: none;
}
.base-container--narrow {
  max-width: 800px;
}
.base-container--wide {
  max-width: 1400px;
}
.base-grid {
  display: grid;
  gap: var(--spacing-md);
}
.base-grid--2-cols {
  grid-template-columns: repeat(2, 1fr);
}
.base-grid--3-cols {
  grid-template-columns: repeat(3, 1fr);
}
.base-grid--4-cols {
  grid-template-columns: repeat(4, 1fr);
}
.base-grid--auto-fit {
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}
.base-grid--auto-fill {
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
}
.base-flex {
  display: flex;
}
.base-flex--center {
  align-items: center;
  justify-content: center;
}
.base-flex--between {
  align-items: center;
  justify-content: space-between;
}
.base-flex--around {
  align-items: center;
  justify-content: space-around;
}
.base-flex--column {
  flex-direction: column;
}
.base-flex--wrap {
  flex-wrap: wrap;
}
.base-flex--gap-sm {
  gap: var(--spacing-sm);
}
.base-flex--gap-md {
  gap: var(--spacing-md);
}
.base-flex--gap-lg {
  gap: var(--spacing-lg);
}
.base-link {
  color: var(--secondary-color);
  text-decoration: none;
  transition: var(--transition);
}
.base-link:hover {
  color: var(--primary-color);
  text-decoration: underline;
}
.base-link--muted {
  color: var(--text-muted);
}
.base-link--muted:hover {
  color: var(--text-color);
}
.base-link--primary {
  color: var(--primary-color);
}
.base-link--primary:hover {
  color: #253544;
}
.base-link--no-underline:hover {
  text-decoration: none;
}
.base-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.base-icon--xs {
  width: var(--icon-xs);
  height: var(--icon-xs);
  font-size: var(--icon-xs);
}
.base-icon--sm {
  width: var(--icon-sm);
  height: var(--icon-sm);
  font-size: var(--icon-sm);
}
.base-icon--md {
  width: var(--icon-md);
  height: var(--icon-md);
  font-size: var(--icon-md);
}
.base-icon--lg {
  width: var(--icon-lg);
  height: var(--icon-lg);
  font-size: var(--icon-lg);
}
.base-icon--xl {
  width: var(--icon-xl);
  height: var(--icon-xl);
  font-size: var(--icon-xl);
}
.base-avatar {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-full);
  overflow: hidden;
  background: var(--bg-light);
  color: var(--text-muted);
}
.base-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.base-avatar--sm {
  width: 2rem;
  height: 2rem;
  font-size: 0.875rem;
}
.base-avatar--md {
  width: 2.5rem;
  height: 2.5rem;
  font-size: 1rem;
}
.base-avatar--lg {
  width: 3rem;
  height: 3rem;
  font-size: 1.125rem;
}
.base-avatar--xl {
  width: 4rem;
  height: 4rem;
  font-size: 1.25rem;
}
.base-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 1.25rem;
  height: 1.25rem;
  padding: 0 var(--spacing-xs);
  background: var(--color-error);
  color: var(--color-white);
  border-radius: var(--radius-pill);
  font-size: 0.75rem;
  font-weight: 700;
  line-height: 1;
}
.base-badge--primary {
  background: var(--primary-color);
}
.base-badge--secondary {
  background: var(--secondary-color);
}
.base-badge--success {
  background: var(--color-success);
}
.base-badge--warning {
  background: var(--color-warning);
}
.base-badge--dot {
  width: 0.5rem;
  height: 0.5rem;
  min-width: 0.5rem;
  padding: 0;
  border-radius: var(--radius-full);
}
.base-loading {
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.base-loading--spinner {
  width: 1.5rem;
  height: 1.5rem;
  border: 2px solid var(--bg-light);
  border-top: 2px solid var(--primary-color);
  border-radius: var(--radius-full);
  animation: spin 300ms linear infinite;
}
.base-loading--dots {
  gap: var(--spacing-xs);
}
.base-loading--dots::before,
.base-loading--dots::after {
  content: '';
  width: 0.25rem;
  height: 0.25rem;
  background: var(--primary-color);
  border-radius: var(--radius-full);
  animation: pulse 500ms ease-in-out infinite;
}
.base-loading--dots::before {
  animation-delay: 0s;
}
.base-loading--dots::after {
  animation-delay: 0.2s;
}
.base-skeleton {
  background: var(--bg-light);
  border-radius: var(--radius-sm);
  overflow: hidden;
  position: relative;
}
.base-skeleton::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.4), transparent);
  animation: shimmer 1.5s infinite ease-in-out;
}
.base-skeleton--text {
  height: 1em;
  margin: 0.25em 0;
}
.base-skeleton--title {
  height: 1.5em;
  margin: 0.5em 0;
}
.base-skeleton--avatar {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: var(--radius-full);
}
.base-skeleton--image {
  width: 100%;
  height: 200px;
}
.base-skeleton--button {
  width: 100px;
  height: var(--btn-height-md);
  border-radius: var(--radius-base);
}
:root[data-theme='dark'] .base-skeleton::before {
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.1), transparent);
}
@-moz-keyframes spin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}
@-webkit-keyframes spin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}
@-o-keyframes spin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}
@keyframes spin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}
@-moz-keyframes pulse {
  0%, 100% {
    opacity: 1;
    transform: scale(1);
  }
  50% {
    opacity: 0.5;
    transform: scale(0.8);
  }
}
@-webkit-keyframes pulse {
  0%, 100% {
    opacity: 1;
    transform: scale(1);
  }
  50% {
    opacity: 0.5;
    transform: scale(0.8);
  }
}
@-o-keyframes pulse {
  0%, 100% {
    opacity: 1;
    transform: scale(1);
  }
  50% {
    opacity: 0.5;
    transform: scale(0.8);
  }
}
@keyframes pulse {
  0%, 100% {
    opacity: 1;
    transform: scale(1);
  }
  50% {
    opacity: 0.5;
    transform: scale(0.8);
  }
}
@-moz-keyframes shimmer {
  0% {
    left: -100%;
  }
  100% {
    left: 100%;
  }
}
@-webkit-keyframes shimmer {
  0% {
    left: -100%;
  }
  100% {
    left: 100%;
  }
}
@-o-keyframes shimmer {
  0% {
    left: -100%;
  }
  100% {
    left: 100%;
  }
}
@keyframes shimmer {
  0% {
    left: -100%;
  }
  100% {
    left: 100%;
  }
}
.sidebar {
  width: 260px;
  background: var(--bg-light);
  color: var(--text-color);
  padding: 1.5rem 1rem 2rem 1rem;
  position: fixed;
  top: 0;
  left: 0;
  height: 100vh;
  overflow: hidden;
  z-index: 1000;
  box-sizing: border-box;
  transform: translateX(0);
  transition: none;
  contain: layout style paint;
}
.sidebar * {
  max-width: 100%;
  box-sizing: border-box;
}
.sidebar > * {
  max-width: calc(100% - 4px);
}
.sidebar .nav-link,
.sidebar .search-box,
.sidebar .search-results {
  max-width: 100%;
}
.sidebar .nav-link:hover,
.sidebar .nav-link:active,
.sidebar .nav-link.active {
  max-width: calc(100% - 6px);
}
.site-header {
  margin-bottom: 1rem;
  text-align: center;
}
.site-title a {
  color: var(--text-color);
  text-decoration: none;
  font-size: 1.5rem;
  font-weight: bold;
}
.site-subtitle {
  color: var(--text-light);
  font-size: 0.9rem;
  margin-top: 0.25rem;
}
.navigation {
  margin-bottom: 1rem;
}
.nav-section {
  margin-bottom: 1rem;
}
.nav-section:last-child {
  margin-bottom: 0;
}
.nav-title {
  color: var(--text-color);
  font-size: 0.9rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 0.5rem;
  padding-left: 0.5rem;
}
.nav-list {
  list-style: none;
}
.nav-item {
  margin-bottom: 0.2rem;
}
.nav-link {
  display: flex;
  align-items: center;
  color: var(--text-light);
  text-decoration: none;
  padding: 0.6rem 1rem;
  border-radius: 6px;
  font-size: 0.95rem;
  font-weight: 600;
  transition: all 300ms cubic-bezier(0.25, 1, 0.5, 1);
  gap: 0.5rem;
  position: relative;
  overflow: hidden;
}
.nav-link::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(52,152,219,0.1), transparent);
  transition: left 300ms ease;
  z-index: -1;
}
.nav-link:hover {
  background: rgba(52,152,219,0.1);
  color: var(--primary-color);
  transform: translateX(3px) scale(1.01);
  box-shadow: 0 2px 8px rgba(52,152,219,0.2);
}
.nav-link:hover::before {
  left: 100%;
}
.nav-link:hover .nav-icon {
  transform: scale(1.05) rotate(3deg);
}
.nav-link:active {
  transform: translateX(2px) scale(0.98);
  transition-duration: 200ms;
}
.nav-link.active {
  background: rgba(52,152,219,0.15);
  color: var(--primary-color);
  font-weight: 700;
  transform: translateX(2px);
  box-shadow: 0 2px 8px rgba(52,152,219,0.3);
}
.nav-link.active .nav-icon {
  transform: scale(1.03);
}
.nav-icon {
  flex-shrink: 0;
  opacity: 0.8;
  transition: opacity 0.2s ease;
}
.nav-link:hover .nav-icon {
  opacity: 1;
}
.nav-text {
  flex: 1;
}
.nav-item.has-children .nav-item-wrapper {
  display: flex;
  align-items: center;
}
.nav-item.has-children .nav-item-wrapper .nav-link {
  flex: 1;
  margin-right: 0.25rem;
}
.nav-toggle {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 0.25rem;
  border-radius: 4px;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 24px;
  height: 24px;
}
.nav-toggle:hover {
  background: rgba(52,152,219,0.1);
  color: var(--primary-color);
}
.nav-toggle:active {
  transform: scale(0.95);
}
.nav-arrow {
  transition: transform 0.2s ease;
}
.nav-submenu {
  list-style: none;
  margin-left: 1.5rem;
  margin-top: 0;
  border-left: 2px solid rgba(52,152,219,0.2);
  padding-left: 0.75rem;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.2s ease, margin-top 0.3s ease;
  opacity: 0;
}
.nav-submenu.expanded {
  max-height: 500px;
  opacity: 1;
  margin-top: 0.25rem;
}
.nav-arrow {
  transform: rotate(-90deg);
}
.nav-item.expanded .nav-arrow {
  transform: rotate(0deg);
}
.nav-subitem {
  margin-bottom: 0.125rem;
}
.nav-sublink {
  display: flex;
  align-items: center;
  color: var(--text-muted);
  text-decoration: none;
  padding: 0.4rem 0.5rem;
  border-radius: 4px;
  font-size: 0.85rem;
  font-weight: 500;
  transition: all 0.2s ease;
  gap: 0.375rem;
}
.nav-sublink:hover {
  background: rgba(52,152,219,0.08);
  color: var(--text-light);
  transform: translateX(2px);
}
.nav-sublink:active {
  transform: translateX(2px) scale(0.95);
}
.nav-sublink.active {
  background: rgba(52,152,219,0.12);
  color: var(--primary-color);
  font-weight: 600;
}
.nav-subicon {
  flex-shrink: 0;
  opacity: 0.7;
  transition: opacity 0.2s ease;
}
.nav-sublink:hover .nav-subicon {
  opacity: 1;
}
.nav-subtext {
  flex: 1;
}
.category-count {
  background: rgba(52,152,219,0.2);
  color: var(--primary-color);
  padding: 0.2rem 0.5rem;
  border-radius: 14px;
  font-size: 0.75rem;
  margin-left: auto;
  min-width: 20px;
  text-align: center;
}
.search-container {
  margin-bottom: 1rem;
  position: relative;
  overflow: visible;
  padding: 2px;
}
.search-box {
  display: flex;
  background: var(--bg-color);
  border-radius: 8px;
  box-shadow: var(--shadow);
  overflow: hidden;
  transition: all 300ms cubic-bezier(0.25, 1, 0.5, 1);
  position: relative;
  max-width: 100%;
  margin: 0 2px;
}
.search-box::before {
  content: '';
  position: absolute;
  top: -1px;
  left: -1px;
  right: -1px;
  bottom: -1px;
  background: linear-gradient(45deg, rgba(52,152,219,0.2), rgba(155,89,182,0.2));
  border-radius: inherit;
  opacity: 0;
  z-index: -1;
  transition: opacity 300ms ease;
  clip-path: inset(0);
}
.search-box:focus-within {
  transform: scale(1.01) translateY(-1px);
  box-shadow: 0 4px 15px rgba(52,152,219,0.15);
}
.search-box:focus-within::before {
  opacity: 1;
}
.search-input {
  flex: 1;
  padding: 1rem;
  border: none;
  outline: none;
  font-size: 1rem;
  background: transparent;
  color: var(--text-color);
  transition: all 300ms cubic-bezier(0.25, 1, 0.5, 1);
}
.search-input::placeholder {
  color: var(--text-muted);
  transition: color 300ms ease;
}
.search-input:focus::placeholder {
  color: transparent;
}
.search-input:not(:placeholder-shown) {
  color: var(--primary-color);
  font-weight: 500;
}
.search-btn {
  border: none;
  border-radius: 6px;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--secondary-color);
  color: #fff;
  padding: 1rem;
  border-radius: 0;
  min-width: 50px;
  position: relative;
  overflow: hidden;
  transition: all 300ms cubic-bezier(0.25, 1, 0.5, 1);
}
.search-btn:hover {
  background: #2980b9;
  transform: translateY(-2px);
}
.search-btn::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  background: rgba(255,255,255,0.3);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  transition: width 600ms ease, height 600ms ease;
}
.search-btn:hover {
  background: #2980b9;
  transform: scale(1.02);
}
.search-btn:active {
  transform: scale(0.98);
}
.search-btn:active::before {
  width: 80px;
  height: 80px;
}
.search-results {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--bg-color);
  border-radius: 8px;
  box-shadow: var(--shadow-hover);
  max-height: 300px;
  overflow-y: auto;
  z-index: 1002;
  margin-top: 0.25rem;
  border: 1px solid var(--border-color);
  opacity: 0;
  transform: translateY(-10px) scale(0.95);
  transition: all 300ms cubic-bezier(0.34, 1.56, 0.64, 1);
  pointer-events: none;
}
.search-results[style*='block'] {
  opacity: 1;
  transform: translateY(0) scale(1);
  pointer-events: auto;
}
.search-results:empty {
  display: none;
}
.search-result-item {
  padding: 1rem;
  border-bottom: 1px solid var(--border-color);
  cursor: pointer;
  transition: all 300ms cubic-bezier(0.25, 1, 0.5, 1);
  position: relative;
  overflow: hidden;
}
.search-result-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(52,152,219,0.05), transparent);
  transition: left 300ms ease;
  z-index: -1;
}
.search-result-item:hover {
  background: var(--bg-light);
  transform: translateX(2px);
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}
.search-result-item:hover::before {
  left: 100%;
}
.search-result-item:active {
  transform: translateX(1px) scale(0.98);
}
.search-result-item:last-child {
  border-bottom: none;
}
.search-result-title {
  font-weight: 600;
  color: var(--text-color);
  margin-bottom: 0.25rem;
}
.search-result-excerpt {
  color: var(--text-light);
  font-size: 0.9rem;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.sidebar-footer {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 1rem;
  border-top: 1px solid var(--border-color);
  background: var(--bg-light);
}
.theme-switcher {
  margin-bottom: 0.5rem;
  display: flex;
  justify-content: center;
}
.theme-toggle-btn {
  width: 44px;
  height: 44px;
  background: var(--bg-color);
  border: 1px solid var(--border-color);
  color: var(--text-color);
  border-radius: 50%;
  cursor: pointer;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  flex-shrink: 0;
  overflow: hidden;
}
.theme-toggle-btn:hover {
  background: var(--bg-light);
  border-color: var(--secondary-color);
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
}
.theme-toggle-btn:hover .theme-icon {
  transform: translate(-50%, -50%) scale(1.1);
}
.theme-toggle-btn:active {
  transform: translateY(0) scale(0.95);
  box-shadow: none;
}
.theme-toggle-btn:focus {
  outline: none;
  box-shadow: 0 0 0 3px rgba(52,152,219,0.3);
}
.theme-toggle-btn.clicking {
  animation: themeToggleClick 0.2s ease-out;
}
.theme-icon {
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  color: var(--text-color);
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  opacity: 0;
}
.theme-icon.light-icon,
.theme-icon.dark-icon,
.theme-icon.auto-icon {
  opacity: 0;
  transform: translate(-50%, -50%) rotate(180deg) scale(0.8);
}
.theme-mode-light .theme-icon.light-icon {
  opacity: 1;
  transform: translate(-50%, -50%) rotate(0deg) scale(1);
}
.theme-mode-light .theme-icon.dark-icon,
.theme-mode-light .theme-icon.auto-icon {
  opacity: 0;
  transform: translate(-50%, -50%) rotate(-180deg) scale(0.8);
}
.theme-mode-dark .theme-icon.dark-icon {
  opacity: 1;
  transform: translate(-50%, -50%) rotate(0deg) scale(1);
}
.theme-mode-dark .theme-icon.light-icon,
.theme-mode-dark .theme-icon.auto-icon {
  opacity: 0;
  transform: translate(-50%, -50%) rotate(-180deg) scale(0.8);
}
.theme-mode-auto .theme-icon.auto-icon {
  opacity: 1;
  transform: translate(-50%, -50%) rotate(0deg) scale(1);
}
.theme-mode-auto .theme-icon.light-icon,
.theme-mode-auto .theme-icon.dark-icon {
  opacity: 0;
  transform: translate(-50%, -50%) rotate(-180deg) scale(0.8);
}
@-moz-keyframes themeToggleClick {
  0% {
    transform: translateY(-2px) scale(1);
  }
  50% {
    transform: translateY(0) scale(0.9);
  }
  100% {
    transform: translateY(-2px) scale(1);
  }
}
@-webkit-keyframes themeToggleClick {
  0% {
    transform: translateY(-2px) scale(1);
  }
  50% {
    transform: translateY(0) scale(0.9);
  }
  100% {
    transform: translateY(-2px) scale(1);
  }
}
@-o-keyframes themeToggleClick {
  0% {
    transform: translateY(-2px) scale(1);
  }
  50% {
    transform: translateY(0) scale(0.9);
  }
  100% {
    transform: translateY(-2px) scale(1);
  }
}
@keyframes themeToggleClick {
  0% {
    transform: translateY(-2px) scale(1);
  }
  50% {
    transform: translateY(0) scale(0.9);
  }
  100% {
    transform: translateY(-2px) scale(1);
  }
}
.resource-card {
  cursor: pointer;
  height: 100%;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  position: relative;
  transform-origin: center;
  transition: all 300ms cubic-bezier(0, 0, 0.2, 1);
}
.resource-card:hover {
  transform: translateY(-8px) scale(1.02) rotate(1deg);
  box-shadow: var(--shadow-hover);
  z-index: 1000;
}
.resource-card:active {
  transform: translateY(-2px) scale(0.98);
  transition-duration: 150ms;
}
.resource-card .card-image::before {
  opacity: 0;
}
.resource-card:hover .card-image::before {
  opacity: 1;
}
.resource-card:hover .card-title {
  color: var(--primary-color);
}
.resource-card:focus {
  outline: none;
  box-shadow: 0 0 0 3px rgba(52,152,219,0.3), var(--shadow-hover);
  transform: translateY(-2px);
}
.resource-card::before {
  content: '';
  position: absolute;
  top: -2px;
  left: -2px;
  right: -2px;
  bottom: -2px;
  background: linear-gradient(45deg, rgba(52,152,219,0.3), rgba(155,89,182,0.3), rgba(52,152,219,0.3));
  border-radius: inherit;
  opacity: 0;
  z-index: -1;
  transition: opacity 300ms ease;
}
.resource-card:hover::before {
  opacity: 1;
  animation: glow 2s infinite;
}
.card-image {
  aspect-ratio: 16/9;
  overflow: hidden;
  background: var(--bg-light);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}
.card-image::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(52,152,219,0.1) 0%, rgba(155,89,182,0.1) 100%);
  opacity: 0;
  z-index: 1;
  transition: opacity 300ms ease;
}
.card-image::after {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: linear-gradient(45deg, transparent 30%, rgba(255,255,255,0.2) 50%, transparent 70%);
  transform: translateX(-100%) translateY(-100%) rotate(45deg);
  transition: transform 500ms ease;
  z-index: 2;
  pointer-events: none;
}
.card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 500ms cubic-bezier(0.25, 1, 0.5, 1);
}
.resource-card:hover .card-image img {
  transform: scale(1.1);
}
.resource-card:hover .card-image::after {
  transform: translateX(100%) translateY(100%) rotate(45deg);
}
.placeholder-image {
  color: var(--text-muted);
  font-size: 2rem;
}
.lazy-image-container {
  position: relative;
  width: 100%;
  height: 100%;
  overflow: hidden;
}
.lazy-image {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transition: opacity 0.4s ease-in-out;
  z-index: 2;
}
.lazy-image.loaded {
  opacity: 1;
}
.lazy-image.error {
  opacity: 0;
}
.image-skeleton {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--bg-light);
  z-index: 1;
  transition: opacity 0.3s ease-out;
}
.lazy-image.loaded ~ .image-skeleton,
.lazy-image.error ~ .image-skeleton {
  opacity: 0;
}
.skeleton-shimmer {
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.4), transparent);
  animation: shimmer 1.5s infinite ease-in-out;
}
:root[data-theme='dark'] .skeleton-shimmer {
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.1), transparent);
}
@media (prefers-reduced-motion: reduce) {
  .lazy-image {
    transition: opacity 0.1s ease !important;
  }
  .image-skeleton {
    transition: opacity 0.1s ease !important;
  }
  .image-error {
    transition: opacity 0.1s ease !important;
  }
  .skeleton-shimmer {
    animation: none !important;
  }
}
.image-error {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--bg-light);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  color: var(--text-muted);
  z-index: 3;
  opacity: 0;
  transition: opacity 0.3s ease-in-out;
}
.image-error.show {
  opacity: 1;
}
.image-error svg {
  margin-bottom: 0.5rem;
  opacity: 0.6;
}
.image-error p {
  font-size: 0.8rem;
  margin: 0;
  text-align: center;
}
.card-content {
  padding: 0.75rem;
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}
.card-title {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 0.4rem;
  color: var(--text-color);
  line-height: 1.3;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  flex-shrink: 0;
}
.card-excerpt {
  color: var(--text-light);
  font-size: 0.85rem;
  margin-bottom: 0.5rem;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  flex: 1;
  line-height: 1.4;
}
.card-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: auto;
  flex-shrink: 0;
}
.card-category {
  background: var(--secondary-color);
  color: #fff;
  padding: 0.2rem 0.4rem;
  border-radius: 4px;
  font-size: 0.75rem;
}
.card-date {
  font-size: 0.75rem;
}
.related-posts {
  margin-top: 3rem;
  padding: 2rem;
  background: var(--bg-color);
  border-radius: 12px;
  box-shadow: var(--shadow);
  transition: var(--transition);
}
.related-posts h3 {
  color: var(--primary-color);
  font-size: 1.3rem;
  margin-bottom: 1.5rem;
  text-align: center;
}
.related-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1rem;
}
.related-card {
  background: var(--bg-light);
  border-radius: 8px;
  overflow: hidden;
  cursor: pointer;
  transition: var(--transition);
}
.related-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}
.related-image {
  aspect-ratio: 16/9;
  overflow: hidden;
  position: relative;
}
.related-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.related-image .lazy-image-container {
  position: relative;
  width: 100%;
  height: 100%;
  overflow: hidden;
}
.related-image .lazy-image {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transition: opacity 0.4s ease-in-out;
  z-index: 2;
}
.related-image .lazy-image.loaded {
  opacity: 1;
}
.related-image .lazy-image.error {
  opacity: 0;
}
.related-image .image-skeleton {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--bg-light);
  z-index: 1;
  transition: opacity 0.3s ease-out;
}
.lazy-image.loaded ~ .related-image .image-skeleton,
.lazy-image.error ~ .related-image .image-skeleton {
  opacity: 0;
}
.related-image .image-error {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--bg-light);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  color: var(--text-muted);
  z-index: 3;
  opacity: 0;
  transition: opacity 0.3s ease-in-out;
}
.related-image .image-error.show {
  opacity: 1;
}
.related-image .image-error svg {
  margin-bottom: 0.3rem;
  opacity: 0.6;
}
.related-image .image-error p {
  font-size: 0.7rem;
  margin: 0;
  text-align: center;
}
.related-content {
  padding: 1rem;
}
.related-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-color);
  margin-bottom: 0.5rem;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.related-excerpt {
  color: var(--text-light);
  font-size: 0.9rem;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.info-card {
  padding: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}
.info-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
}
.info-card-title {
  color: var(--primary-color);
  font-size: 1.25rem;
  margin-bottom: var(--spacing-md);
  font-weight: 600;
}
.info-card-content {
  color: var(--text-color);
  line-height: 1.625;
}
.stats-card {
  padding: var(--spacing-lg);
  text-align: center;
}
.stats-card:hover {
  transform: translateY(-2px);
}
.stats-card .stats-number {
  font-size: 2.25rem;
  font-weight: 700;
  color: var(--primary-color);
  margin-bottom: var(--spacing-sm);
}
.stats-card .stats-label {
  color: var(--text-light);
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.action-card {
  background: var(--bg-color);
  border-radius: 12px;
  box-shadow: var(--shadow);
  transition: var(--transition);
  padding: 1.5rem;
  text-align: center;
  cursor: pointer;
}
.action-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 4px 20px rgba(0,0,0,0.15);
}
.action-icon {
  font-size: 2.5rem;
  color: var(--secondary-color);
  margin-bottom: 1rem;
}
.action-title {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-color);
  margin-bottom: 0.5rem;
}
.action-description {
  color: var(--text-light);
  font-size: 0.9rem;
}
.loading-card {
  background: var(--bg-color);
  border-radius: 12px;
  box-shadow: var(--shadow);
  transition: var(--transition);
  padding: 2rem;
  text-align: center;
}
.loading-card .loading-spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--border-color);
  border-top: 3px solid var(--secondary-color);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin: 0 auto 1rem;
}
.loading-text {
  color: var(--text-muted);
  font-size: 0.9rem;
}
@-moz-keyframes shimmer {
  0% {
    left: -100%;
  }
  100% {
    left: 100%;
  }
}
@-webkit-keyframes shimmer {
  0% {
    left: -100%;
  }
  100% {
    left: 100%;
  }
}
@-o-keyframes shimmer {
  0% {
    left: -100%;
  }
  100% {
    left: 100%;
  }
}
@keyframes shimmer {
  0% {
    left: -100%;
  }
  100% {
    left: 100%;
  }
}
.breadcrumb {
  display: flex;
  align-items: center;
  margin-bottom: 1.5rem;
  padding: 1rem;
  background: var(--bg-color);
  border-radius: 8px;
  box-shadow: var(--shadow);
}
.breadcrumb-item {
  color: var(--text-light);
  font-size: 0.9rem;
}
.breadcrumb-item:not(:last-child)::after {
  content: '/';
  margin: 0 0.5rem;
  color: var(--text-muted);
}
.breadcrumb-item:last-child {
  color: var(--text-color);
  font-weight: 600;
}
.breadcrumb-link {
  color: var(--text-light);
  text-decoration: none;
  transition: var(--transition);
}
.breadcrumb-link:hover {
  color: var(--primary-color);
}
.tag-navigation {
  margin-bottom: 2rem;
}
.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.tag-item {
  background: rgba(52,152,219,0.1);
  color: var(--secondary-color);
  padding: 0.25rem 0.5rem;
  border-radius: 14px;
  font-size: 0.8rem;
  transition: var(--transition);
  text-decoration: none;
}
.tag-item:hover {
  background: rgba(52,152,219,0.2);
  color: var(--secondary-color);
}
.tag-item.active {
  background: var(--primary-color);
  color: #fff;
}
.category-navigation {
  margin-bottom: 2rem;
}
.category-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
}
.category-item {
  background: var(--bg-color);
  border-radius: 12px;
  box-shadow: var(--shadow);
  transition: var(--transition);
  padding: 1.5rem;
  text-align: center;
  text-decoration: none;
  transition: var(--transition);
}
.category-item:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
}
.category-icon {
  font-size: 2rem;
  color: var(--secondary-color);
  margin-bottom: 0.5rem;
}
.category-name {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-color);
  margin-bottom: 0.25rem;
}
.category-count {
  color: var(--text-muted);
  font-size: 0.9rem;
}
.back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 50px;
  height: 50px;
  background: var(--primary-color);
  color: #fff;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  transition: var(--transition);
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}
.back-to-top.visible {
  opacity: 1;
  visibility: visible;
}
.back-to-top:hover {
  background: var(--secondary-color);
  transform: translateY(-2px);
}
.language-switcher {
  position: relative;
  display: inline-block;
}
.language-toggle {
  background: rgba(255,255,255,0.1);
  border: none;
  color: #fff;
  padding: 0.5rem 1rem;
  border-radius: 6px;
  cursor: pointer;
  transition: var(--transition);
}
.language-toggle:hover {
  background: rgba(255,255,255,0.2);
}
.language-dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  background: var(--bg-color);
  border-radius: 6px;
  box-shadow: var(--shadow-hover);
  min-width: 120px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: var(--transition);
  z-index: 1001;
  border: 1px solid var(--border-color);
}
.language-dropdown.active {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.language-option {
  display: block;
  padding: 0.5rem 1rem;
  color: var(--text-color);
  text-decoration: none;
  transition: var(--transition);
}
.language-option:hover {
  background: var(--bg-light);
}
.language-option:first-child {
  border-radius: 6px 6px 0 0;
}
.language-option:last-child {
  border-radius: 0 0 6px 6px;
}
.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0.5rem;
  margin: 2rem 0;
  padding: 1rem 0;
  opacity: 1;
  visibility: visible;
  position: relative;
  z-index: 1000;
  background: transparent;
  border: none;
  transition: none;
  transform: none;
}
.pagination a,
.pagination span {
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 44px;
  height: 44px;
  font-size: 0.9rem;
  font-weight: 500;
  text-decoration: none;
  line-height: 1;
  border-radius: 8px;
  border: 1px solid var(--border-color);
  background: var(--bg-color);
  color: var(--text-color);
  opacity: 1;
  visibility: visible;
  transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
  cursor: pointer;
  user-select: none;
  transform: none;
}
.pagination a {
  color: var(--text-light);
}
.pagination a:hover {
  background: var(--bg-light);
  color: var(--text-color);
  border-color: var(--secondary-color);
}
.pagination a:active {
  background: var(--secondary-color);
  color: #fff;
}
.pagination .current {
  background: var(--secondary-color);
  color: #fff;
  border-color: var(--secondary-color);
  font-weight: 600;
  cursor: default;
}
.pagination .current:hover {
  background: var(--secondary-color);
  color: #fff;
}
.pagination .space {
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: default;
}
.pagination .space:hover {
  background: transparent;
  color: var(--text-muted);
}
.pagination .prev,
.pagination .next {
  min-width: 60px;
  padding: 0 12px;
  font-weight: 600;
}
.pagination .prev svg,
.pagination .next svg {
  width: 16px;
  height: 16px;
  opacity: 0.8;
}
.pagination .prev:hover svg,
.pagination .next:hover svg {
  opacity: 1;
}
.pagination .prev.disabled,
.pagination .next.disabled {
  opacity: 0.4;
  cursor: not-allowed;
  background: var(--bg-light);
  color: var(--text-muted);
}
.pagination .prev.disabled:hover,
.pagination .next.disabled:hover {
  background: var(--bg-light);
  color: var(--text-muted);
  border-color: var(--border-color);
}
:root[data-theme='dark'] .pagination a {
  border-color: var(--border-color);
}
:root[data-theme='dark'] .pagination a:hover {
  border-color: var(--secondary-color);
}
:root[data-theme='dark'] .pagination .current {
  box-shadow: 0 2px 8px rgba(52,152,219,0.3);
}
@media (prefers-contrast: high) {
  .pagination a,
  .pagination span {
    border-width: 2px;
  }
  .pagination .current {
    border-width: 3px;
  }
}
@media (prefers-reduced-motion: reduce) {
  .pagination a,
  .pagination span {
    transition: none !important;
  }
}
.page-leaving .pagination,
.page-entering .pagination,
.page-entered .pagination {
  opacity: 1;
  visibility: visible;
  display: flex;
  transform: none;
}
.page-leaving .pagination a,
.page-entering .pagination a,
.page-entered .pagination a,
.page-leaving .pagination span,
.page-entering .pagination span,
.page-entered .pagination span {
  opacity: 1;
  visibility: visible;
  transform: none;
}
.page-container {
  opacity: 1;
  transform: scale(1) translateZ(0);
  transition: opacity 350ms cubic-bezier(0.4, 0, 0.2, 1), transform 350ms cubic-bezier(0.4, 0, 0.2, 1);
  background-color: var(--bg-color);
  will-change: opacity, transform;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transform-style: preserve-3d;
  -webkit-transform-style: preserve-3d;
  contain: layout style paint;
}
.page-container.page-leaving {
  opacity: 0;
  transform: scale(0.95);
  pointer-events: none;
  background-color: var(--bg-color);
}
.page-container.page-entering {
  opacity: 0;
  transform: scale(0.95);
  background-color: var(--bg-color);
}
.page-container.page-entered {
  opacity: 1;
  transform: scale(1);
  background-color: var(--bg-color);
}
.main-content {
  transition: inherit;
  background-color: var(--bg-color);
}
.page-leaving .main-content,
.page-entering .main-content {
  background-color: var(--bg-color);
}
.page-leaving .main-content *,
.page-entering .main-content * {
  transition: none;
}
.sidebar {
  transition: none;
}
.page-leaving .sidebar,
.page-entering .sidebar,
.page-entered .sidebar {
  transition: none;
  opacity: 1;
  visibility: visible;
  transform: none;
  position: fixed;
}
.page-transition-loader {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--secondary-color), transparent);
  transform: translateX(-100%);
  transition: transform 350ms cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 9999;
  opacity: 0;
  box-shadow: 0 1px 3px rgba(0,0,0,0.2);
}
.page-transition-loader.loading {
  opacity: 1;
  animation: pageLoadProgress 350ms ease-out forwards;
}
.page-leaving .search-results,
.page-entering .search-results {
  opacity: 0;
  pointer-events: none;
}
.page-leaving .mobile-overlay,
.page-entering .mobile-overlay {
  opacity: 0;
  pointer-events: none;
}
.page-leaving,
.page-entering {
  overflow: hidden;
  min-height: 100vh;
}
.page-leaving .main-content,
.page-entering .main-content {
  min-height: 100vh;
}
.page-leaving .resource-card,
.page-leaving .related-card,
.page-entering .resource-card,
.page-entering .related-card {
  transform: none;
  transition: none;
}
.performance-low .page-container {
  transition-duration: 200ms;
}
.performance-low .page-container.page-leaving,
.performance-low .page-container.page-entering {
  transform: none;
}
.performance-low .page-transition-loader {
  animation-duration: 200ms;
}
.simple-transitions .page-container.page-leaving,
.simple-transitions .page-container.page-entering {
  transform: none;
}
.performance-high .page-container {
  transition-duration: 400ms;
  transition-timing-function: cubic-bezier(0.25, 0.46, 0.45, 0.94);
}
.enhanced-transitions .page-container.page-leaving {
  transform: scale(0.92) translateZ(0);
}
.enhanced-transitions .page-container.page-entering {
  transform: scale(0.92) translateZ(0);
}
@media (prefers-reduced-motion: reduce) {
  .page-container {
    transition-duration: 0.01ms !important;
  }
  .page-container.page-leaving,
  .page-container.page-entering {
    transform: none !important;
  }
  .page-transition-loader {
    display: none !important;
  }
@-moz-keyframes pageLoadProgress {
    0%, 100% {
      transform: translateX(-100%);
    }
}
@-webkit-keyframes pageLoadProgress {
    0%, 100% {
      transform: translateX(-100%);
    }
}
@-o-keyframes pageLoadProgress {
    0%, 100% {
      transform: translateX(-100%);
    }
}
@keyframes pageLoadProgress {
    0%, 100% {
      transform: translateX(-100%);
    }
}
}
@media (prefers-contrast: high) {
  .page-transition-loader {
    background: linear-gradient(90deg, transparent, #000, transparent);
  }
}
@media (forced-colors: active) {
  .page-transition-loader {
    background: Highlight;
  }
  .page-container {
    forced-color-adjust: none;
  }
}
@media (min-resolution: 2dppx) {
  .page-container {
    transition-timing-function: cubic-bezier(0.25, 0.46, 0.45, 0.94);
  }
}
@media print {
  .page-container {
    transition: none !important;
    opacity: 1 !important;
    transform: none !important;
  }
  .page-transition-loader {
    display: none !important;
  }
}
.debug-transitions .page-container {
  transition-duration: 2s !important;
}
.debug-transitions .page-container.page-leaving {
  background: rgba(255,0,0,0.1);
}
.debug-transitions .page-container.page-entering {
  background: rgba(0,255,0,0.1);
}
@-moz-keyframes pageLoadProgress {
  0% {
    transform: translateX(-100%);
  }
  50% {
    transform: translateX(-20%);
  }
  100% {
    transform: translateX(100%);
  }
}
@-webkit-keyframes pageLoadProgress {
  0% {
    transform: translateX(-100%);
  }
  50% {
    transform: translateX(-20%);
  }
  100% {
    transform: translateX(100%);
  }
}
@-o-keyframes pageLoadProgress {
  0% {
    transform: translateX(-100%);
  }
  50% {
    transform: translateX(-20%);
  }
  100% {
    transform: translateX(100%);
  }
}
@keyframes pageLoadProgress {
  0% {
    transform: translateX(-100%);
  }
  50% {
    transform: translateX(-20%);
  }
  100% {
    transform: translateX(100%);
  }
}
.page-enter {
  animation: fadeInUp 500ms cubic-bezier(0.25, 1, 0.5, 1);
}
.row-fade-item {
  opacity: 0;
  transform: translateY(30px);
  animation: fadeInUp 600ms cubic-bezier(0.25, 1, 0.5, 1) forwards;
  animation-delay: 0ms;
}
.stagger-item {
  opacity: 0;
  transform: translateY(30px);
  animation: fadeInUp 600ms cubic-bezier(0.25, 1, 0.5, 1) forwards;
}
.stagger-item:nth-child(1) {
  animation-delay: 0ms;
}
.stagger-item:nth-child(2) {
  animation-delay: 100ms;
}
.stagger-item:nth-child(3) {
  animation-delay: 200ms;
}
.stagger-item:nth-child(4) {
  animation-delay: 300ms;
}
.stagger-item:nth-child(5) {
  animation-delay: 400ms;
}
.stagger-item:nth-child(6) {
  animation-delay: 500ms;
}
.stagger-item:nth-child(7) {
  animation-delay: 600ms;
}
.stagger-item:nth-child(8) {
  animation-delay: 700ms;
}
.stagger-item:nth-child(9) {
  animation-delay: 800ms;
}
.stagger-item:nth-child(10) {
  animation-delay: 900ms;
}
.stagger-item:nth-child(n+11) {
  animation-delay: 1000ms;
}
.scroll-reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: all 600ms cubic-bezier(0.25, 1, 0.5, 1);
}
.scroll-reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}
.scroll-reveal-left {
  opacity: 0;
  transform: translateX(-30px);
  transition: all 600ms cubic-bezier(0.25, 1, 0.5, 1);
}
.scroll-reveal-left.revealed {
  opacity: 1;
  transform: translateX(0);
}
.scroll-reveal-right {
  opacity: 0;
  transform: translateX(30px);
  transition: all 600ms cubic-bezier(0.25, 1, 0.5, 1);
}
.scroll-reveal-right.revealed {
  opacity: 1;
  transform: translateX(0);
}
.scroll-reveal-scale {
  opacity: 0;
  transform: scale(0.8);
  transition: all 600ms cubic-bezier(0.34, 1.56, 0.64, 1);
}
.scroll-reveal-scale.revealed {
  opacity: 1;
  transform: scale(1);
}
.hover-lift {
  transition: transform 300ms cubic-bezier(0.25, 1, 0.5, 1), box-shadow 300ms cubic-bezier(0.25, 1, 0.5, 1);
}
.hover-lift:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}
.hover-scale {
  transition: transform 300ms cubic-bezier(0.25, 1, 0.5, 1);
}
.hover-scale:hover {
  transform: scale(1.02);
}
.hover-rotate {
  transition: transform 300ms cubic-bezier(0.25, 1, 0.5, 1);
}
.hover-rotate:hover {
  transform: rotate(1deg);
}
.hover-glow {
  transition: box-shadow 300ms ease;
}
.hover-glow:hover {
  animation: glow 2s infinite;
}
.btn-enhanced {
  position: relative;
  overflow: hidden;
  transition: all 300ms cubic-bezier(0.25, 1, 0.5, 1);
}
.btn-enhanced::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  background: rgba(255,255,255,0.3);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  transition: width 600ms cubic-bezier(0.25, 1, 0.5, 1), height 600ms cubic-bezier(0.25, 1, 0.5, 1);
}
.btn-enhanced:active::before {
  width: 300px;
  height: 300px;
}
.btn-enhanced:hover {
  transform: translateY(-2px) scale(1.05);
}
.btn-enhanced:active {
  transform: translateY(0) scale(0.95);
}
.input-enhanced {
  transition: all 300ms cubic-bezier(0.25, 1, 0.5, 1);
}
.input-enhanced:focus {
  transform: scale(1.02);
  box-shadow: 0 0 0 3px rgba(52,152,219,0.2);
}
.loading-spinner {
  animation: spin 1s linear infinite;
}
.loading-dots::after {
  content: '';
  animation: dots 1.5s infinite;
}
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  .stagger-item,
  .row-fade-item {
    animation: none !important;
    opacity: 1 !important;
    transform: none !important;
  }
  .scroll-reveal,
  .scroll-reveal-left,
  .scroll-reveal-right,
  .scroll-reveal-scale {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }
  .hover-lift:hover,
  .hover-scale:hover,
  .hover-rotate:hover {
    transform: none !important;
  }
  .btn-enhanced:hover,
  .btn-enhanced:active {
    transform: none !important;
  }
  .input-enhanced:focus {
    transform: none !important;
  }
}
@-moz-keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
@-webkit-keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
@-o-keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
@-moz-keyframes fadeInLeft {
  from {
    opacity: 0;
    transform: translateX(-30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}
@-webkit-keyframes fadeInLeft {
  from {
    opacity: 0;
    transform: translateX(-30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}
@-o-keyframes fadeInLeft {
  from {
    opacity: 0;
    transform: translateX(-30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}
@keyframes fadeInLeft {
  from {
    opacity: 0;
    transform: translateX(-30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}
@-moz-keyframes fadeInRight {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}
@-webkit-keyframes fadeInRight {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}
@-o-keyframes fadeInRight {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}
@keyframes fadeInRight {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}
@-moz-keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.8);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}
@-webkit-keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.8);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}
@-o-keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.8);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}
@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.8);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}
@-moz-keyframes rotateIn {
  from {
    opacity: 0;
    transform: rotate(-10deg) scale(0.9);
  }
  to {
    opacity: 1;
    transform: rotate(0deg) scale(1);
  }
}
@-webkit-keyframes rotateIn {
  from {
    opacity: 0;
    transform: rotate(-10deg) scale(0.9);
  }
  to {
    opacity: 1;
    transform: rotate(0deg) scale(1);
  }
}
@-o-keyframes rotateIn {
  from {
    opacity: 0;
    transform: rotate(-10deg) scale(0.9);
  }
  to {
    opacity: 1;
    transform: rotate(0deg) scale(1);
  }
}
@keyframes rotateIn {
  from {
    opacity: 0;
    transform: rotate(-10deg) scale(0.9);
  }
  to {
    opacity: 1;
    transform: rotate(0deg) scale(1);
  }
}
@-moz-keyframes bounceIn {
  0% {
    opacity: 0;
    transform: scale(0.3);
  }
  50% {
    opacity: 1;
    transform: scale(1.05);
  }
  70% {
    transform: scale(0.9);
  }
  100% {
    opacity: 1;
    transform: scale(1);
  }
}
@-webkit-keyframes bounceIn {
  0% {
    opacity: 0;
    transform: scale(0.3);
  }
  50% {
    opacity: 1;
    transform: scale(1.05);
  }
  70% {
    transform: scale(0.9);
  }
  100% {
    opacity: 1;
    transform: scale(1);
  }
}
@-o-keyframes bounceIn {
  0% {
    opacity: 0;
    transform: scale(0.3);
  }
  50% {
    opacity: 1;
    transform: scale(1.05);
  }
  70% {
    transform: scale(0.9);
  }
  100% {
    opacity: 1;
    transform: scale(1);
  }
}
@keyframes bounceIn {
  0% {
    opacity: 0;
    transform: scale(0.3);
  }
  50% {
    opacity: 1;
    transform: scale(1.05);
  }
  70% {
    transform: scale(0.9);
  }
  100% {
    opacity: 1;
    transform: scale(1);
  }
}
@-moz-keyframes ripple {
  0% {
    transform: scale(0);
    opacity: 1;
  }
  100% {
    transform: scale(4);
    opacity: 0;
  }
}
@-webkit-keyframes ripple {
  0% {
    transform: scale(0);
    opacity: 1;
  }
  100% {
    transform: scale(4);
    opacity: 0;
  }
}
@-o-keyframes ripple {
  0% {
    transform: scale(0);
    opacity: 1;
  }
  100% {
    transform: scale(4);
    opacity: 0;
  }
}
@keyframes ripple {
  0% {
    transform: scale(0);
    opacity: 1;
  }
  100% {
    transform: scale(4);
    opacity: 0;
  }
}
@-moz-keyframes pulse {
  0% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.05);
  }
  100% {
    transform: scale(1);
  }
}
@-webkit-keyframes pulse {
  0% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.05);
  }
  100% {
    transform: scale(1);
  }
}
@-o-keyframes pulse {
  0% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.05);
  }
  100% {
    transform: scale(1);
  }
}
@keyframes pulse {
  0% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.05);
  }
  100% {
    transform: scale(1);
  }
}
@-moz-keyframes shake {
  0%, 100% {
    transform: translateX(0);
  }
  10%, 30%, 50%, 70%, 90% {
    transform: translateX(-2px);
  }
  20%, 40%, 60%, 80% {
    transform: translateX(2px);
  }
}
@-webkit-keyframes shake {
  0%, 100% {
    transform: translateX(0);
  }
  10%, 30%, 50%, 70%, 90% {
    transform: translateX(-2px);
  }
  20%, 40%, 60%, 80% {
    transform: translateX(2px);
  }
}
@-o-keyframes shake {
  0%, 100% {
    transform: translateX(0);
  }
  10%, 30%, 50%, 70%, 90% {
    transform: translateX(-2px);
  }
  20%, 40%, 60%, 80% {
    transform: translateX(2px);
  }
}
@keyframes shake {
  0%, 100% {
    transform: translateX(0);
  }
  10%, 30%, 50%, 70%, 90% {
    transform: translateX(-2px);
  }
  20%, 40%, 60%, 80% {
    transform: translateX(2px);
  }
}
@-moz-keyframes glow {
  0%, 100% {
    box-shadow: 0 0 5px rgba(52,152,219,0.3);
  }
  50% {
    box-shadow: 0 0 20px rgba(52,152,219,0.6), 0 0 30px rgba(52,152,219,0.4);
  }
}
@-webkit-keyframes glow {
  0%, 100% {
    box-shadow: 0 0 5px rgba(52,152,219,0.3);
  }
  50% {
    box-shadow: 0 0 20px rgba(52,152,219,0.6), 0 0 30px rgba(52,152,219,0.4);
  }
}
@-o-keyframes glow {
  0%, 100% {
    box-shadow: 0 0 5px rgba(52,152,219,0.3);
  }
  50% {
    box-shadow: 0 0 20px rgba(52,152,219,0.6), 0 0 30px rgba(52,152,219,0.4);
  }
}
@keyframes glow {
  0%, 100% {
    box-shadow: 0 0 5px rgba(52,152,219,0.3);
  }
  50% {
    box-shadow: 0 0 20px rgba(52,152,219,0.6), 0 0 30px rgba(52,152,219,0.4);
  }
}
@-moz-keyframes spin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}
@-webkit-keyframes spin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}
@-o-keyframes spin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}
@keyframes spin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}
@-moz-keyframes dots {
  0%, 20% {
    content: '.';
  }
  40% {
    content: '..';
  }
  60%, 100% {
    content: '...';
  }
}
@-webkit-keyframes dots {
  0%, 20% {
    content: '.';
  }
  40% {
    content: '..';
  }
  60%, 100% {
    content: '...';
  }
}
@-o-keyframes dots {
  0%, 20% {
    content: '.';
  }
  40% {
    content: '..';
  }
  60%, 100% {
    content: '...';
  }
}
@keyframes dots {
  0%, 20% {
    content: '.';
  }
  40% {
    content: '..';
  }
  60%, 100% {
    content: '...';
  }
}
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: rgba(52,152,219,0.1);
  z-index: 9999;
  pointer-events: none;
}
.scroll-progress-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--secondary-color) 0%, var(--primary-color) 100%);
  width: 0%;
  transition: width 0.1s ease-out;
  box-shadow: 0 0 10px rgba(52,152,219,0.3);
}
.back-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 50px;
  height: 50px;
  background: var(--secondary-color);
  color: #fff;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px) scale(0.8);
  transition: all 300ms cubic-bezier(0.34, 1.56, 0.64, 1);
  box-shadow: 0 4px 20px rgba(52,152,219,0.3);
}
.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0) scale(1);
}
.back-to-top:hover {
  background: var(--primary-color);
  transform: translateY(-3px) scale(1.1);
  box-shadow: 0 8px 30px rgba(52,152,219,0.4);
}
.back-to-top:active {
  transform: translateY(-1px) scale(0.95);
}
.back-to-top svg {
  width: 24px;
  height: 24px;
  transition: transform 200ms ease;
}
.back-to-top:hover svg {
  transform: translateY(-2px);
}
.scroll-reveal-container {
  overflow: hidden;
}
.scroll-reveal-item {
  opacity: 0;
  transform: translateY(50px);
  transition: all 600ms cubic-bezier(0.25, 1, 0.5, 1);
}
.scroll-reveal-item.animate {
  opacity: 1;
  transform: translateY(0);
}
.scroll-reveal-item.from-left {
  transform: translateX(-50px);
}
.scroll-reveal-item.from-left.animate {
  transform: translateX(0);
}
.scroll-reveal-item.from-right {
  transform: translateX(50px);
}
.scroll-reveal-item.from-right.animate {
  transform: translateX(0);
}
.scroll-reveal-item.from-bottom {
  transform: translateY(50px);
}
.scroll-reveal-item.from-bottom.animate {
  transform: translateY(0);
}
.scroll-reveal-item.scale-in {
  transform: scale(0.8);
}
.scroll-reveal-item.scale-in.animate {
  transform: scale(1);
}
.scroll-reveal-stagger .scroll-reveal-item:nth-child(1) {
  transition-delay: 0ms;
}
.scroll-reveal-stagger .scroll-reveal-item:nth-child(2) {
  transition-delay: 100ms;
}
.scroll-reveal-stagger .scroll-reveal-item:nth-child(3) {
  transition-delay: 200ms;
}
.scroll-reveal-stagger .scroll-reveal-item:nth-child(4) {
  transition-delay: 300ms;
}
.scroll-reveal-stagger .scroll-reveal-item:nth-child(5) {
  transition-delay: 400ms;
}
.scroll-reveal-stagger .scroll-reveal-item:nth-child(6) {
  transition-delay: 500ms;
}
.scroll-reveal-stagger .scroll-reveal-item:nth-child(7) {
  transition-delay: 600ms;
}
.scroll-reveal-stagger .scroll-reveal-item:nth-child(8) {
  transition-delay: 700ms;
}
.scroll-reveal-stagger .scroll-reveal-item:nth-child(n+9) {
  transition-delay: 800ms;
}
.parallax-container {
  overflow: hidden;
  position: relative;
}
.parallax-element {
  will-change: transform;
  transition: transform 0.1s ease-out;
}
.custom-scrollbar::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}
.custom-scrollbar::-webkit-scrollbar-track {
  background: var(--bg-light);
  border-radius: 4px;
}
.custom-scrollbar::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, var(--secondary-color) 0%, var(--primary-color) 100%);
  border-radius: 4px;
  transition: background 200ms ease;
}
.custom-scrollbar::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(180deg, var(--primary-color) 0%, var(--secondary-color) 100%);
}
.custom-scrollbar::-webkit-scrollbar-corner {
  background: var(--bg-light);
}
.scroll-snap-container {
  scroll-snap-type: y mandatory;
  scroll-behavior: smooth;
}
.scroll-snap-item {
  scroll-snap-align: start;
}
.on-scroll-fade-in {
  opacity: 0;
  transition: opacity 600ms ease;
}
.on-scroll-fade-in.in-view {
  opacity: 1;
}
.on-scroll-slide-up {
  opacity: 0;
  transform: translateY(30px);
  transition: all 600ms cubic-bezier(0.25, 1, 0.5, 1);
}
.on-scroll-slide-up.in-view {
  opacity: 1;
  transform: translateY(0);
}
.on-scroll-slide-left {
  opacity: 0;
  transform: translateX(-30px);
  transition: all 600ms cubic-bezier(0.25, 1, 0.5, 1);
}
.on-scroll-slide-left.in-view {
  opacity: 1;
  transform: translateX(0);
}
.on-scroll-slide-right {
  opacity: 0;
  transform: translateX(30px);
  transition: all 600ms cubic-bezier(0.25, 1, 0.5, 1);
}
.on-scroll-slide-right.in-view {
  opacity: 1;
  transform: translateX(0);
}
.on-scroll-scale-in {
  opacity: 0;
  transform: scale(0.9);
  transition: all 600ms cubic-bezier(0.34, 1.56, 0.64, 1);
}
.on-scroll-scale-in.in-view {
  opacity: 1;
  transform: scale(1);
}
.on-scroll-rotate-in {
  opacity: 0;
  transform: rotate(-5deg) scale(0.9);
  transition: all 600ms cubic-bezier(0.34, 1.56, 0.64, 1);
}
.on-scroll-rotate-in.in-view {
  opacity: 1;
  transform: rotate(0deg) scale(1);
}
@media (prefers-reduced-motion: reduce) {
  .scroll-progress-bar {
    transition: none;
  }
  .back-to-top {
    transition: opacity 200ms ease, visibility 200ms ease;
  }
  .back-to-top:hover,
  .back-to-top:active {
    transform: none !important;
  }
  .scroll-reveal-item,
  .on-scroll-fade-in,
  .on-scroll-slide-up,
  .on-scroll-slide-left,
  .on-scroll-slide-right,
  .on-scroll-scale-in,
  .on-scroll-rotate-in {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }
  .parallax-element {
    transform: none !important;
  }
  .scroll-snap-container {
    scroll-behavior: auto;
  }
}
.btn-ripple {
  position: relative;
  overflow: hidden;
  transition: all 300ms cubic-bezier(0.25, 1, 0.5, 1);
}
.btn-ripple::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  background: rgba(255,255,255,0.4);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  transition: width 600ms cubic-bezier(0.25, 1, 0.5, 1), height 600ms cubic-bezier(0.25, 1, 0.5, 1);
  pointer-events: none;
}
.btn-ripple:active::before {
  width: 300px;
  height: 300px;
}
.btn-float {
  transition: all 300ms cubic-bezier(0.25, 1, 0.5, 1);
}
.btn-float:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 8px 25px rgba(0,0,0,0.15);
}
.btn-float:active {
  transform: translateY(-1px) scale(0.98);
}
.btn-pulse {
  animation: pulse-button 2s infinite;
}
.btn-pulse:hover {
  animation-play-state: paused;
}
.btn-glow {
  position: relative;
  transition: all 300ms ease;
}
.btn-glow::before {
  content: '';
  position: absolute;
  top: -2px;
  left: -2px;
  right: -2px;
  bottom: -2px;
  background: linear-gradient(45deg, var(--primary-color), var(--secondary-color), var(--primary-color));
  border-radius: inherit;
  opacity: 0;
  z-index: -1;
  transition: opacity 300ms ease;
  filter: blur(4px);
}
.btn-glow:hover::before {
  opacity: 0.7;
  animation: glow-rotate 2s linear infinite;
}
.btn-shake:hover {
  animation: shake-button 0.5s ease-in-out;
}
.btn-bounce:hover {
  animation: bounce-button 0.6s ease;
}
.btn-rotate {
  transition: all 300ms cubic-bezier(0.25, 1, 0.5, 1);
}
.btn-rotate:hover {
  transform: rotate(5deg) scale(1.05);
}
.btn-rotate:active {
  transform: rotate(-2deg) scale(0.95);
}
.btn-flip {
  perspective: 1000px;
}
.btn-flip:hover {
  transform: rotateY(180deg);
}
.btn-slide-fill {
  position: relative;
  overflow: hidden;
  transition: color 300ms ease;
}
.btn-slide-fill::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: var(--primary-color);
  transition: left 300ms cubic-bezier(0.25, 1, 0.5, 1);
  z-index: -1;
}
.btn-slide-fill:hover {
  color: #fff;
}
.btn-slide-fill:hover::before {
  left: 0;
}
.btn-border-animate {
  position: relative;
  border: 2px solid var(--primary-color);
  background: transparent;
  color: var(--primary-color);
  overflow: hidden;
}
.btn-border-animate::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 0;
  height: 100%;
  background: var(--primary-color);
  transition: width 300ms cubic-bezier(0.25, 1, 0.5, 1);
  z-index: -1;
}
.btn-border-animate:hover {
  color: #fff;
}
.btn-border-animate:hover::before {
  width: 100%;
}
.menu-btn span {
  transition: all 300ms cubic-bezier(0.25, 1, 0.5, 1);
  transform-origin: center;
}
.menu-btn.active span:nth-child(1) {
  transform: rotate(45deg) translateY(8px);
}
.menu-btn.active span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}
.menu-btn.active span:nth-child(3) {
  transform: rotate(-45deg) translateY(-8px);
}
.theme-toggle {
  transition: all 300ms cubic-bezier(0.25, 1, 0.5, 1);
}
.theme-toggle:hover {
  transform: rotate(180deg) scale(1.1);
}
.theme-toggle:active {
  transform: rotate(180deg) scale(0.9);
}
@media (prefers-reduced-motion: reduce) {
  .btn-ripple::before,
  .btn-pulse,
  .btn-glow::before,
  .btn-shake:hover,
  .btn-bounce:hover {
    animation: none !important;
  }
  .btn-float:hover,
  .btn-rotate:hover,
  .btn-flip:hover,
  .pagination a:hover,
  .pagination span:hover,
  .theme-toggle:hover {
    transform: none !important;
  }
  .btn-slide-fill::before,
  .btn-border-animate::before {
    transition: none !important;
  }
}
@-moz-keyframes pulse-button {
  0% {
    box-shadow: 0 0 0 0 rgba(52,152,219,0.7);
  }
  70% {
    box-shadow: 0 0 0 10px rgba(52,152,219,0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(52,152,219,0);
  }
}
@-webkit-keyframes pulse-button {
  0% {
    box-shadow: 0 0 0 0 rgba(52,152,219,0.7);
  }
  70% {
    box-shadow: 0 0 0 10px rgba(52,152,219,0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(52,152,219,0);
  }
}
@-o-keyframes pulse-button {
  0% {
    box-shadow: 0 0 0 0 rgba(52,152,219,0.7);
  }
  70% {
    box-shadow: 0 0 0 10px rgba(52,152,219,0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(52,152,219,0);
  }
}
@keyframes pulse-button {
  0% {
    box-shadow: 0 0 0 0 rgba(52,152,219,0.7);
  }
  70% {
    box-shadow: 0 0 0 10px rgba(52,152,219,0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(52,152,219,0);
  }
}
@-moz-keyframes glow-rotate {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}
@-webkit-keyframes glow-rotate {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}
@-o-keyframes glow-rotate {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}
@keyframes glow-rotate {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}
@-moz-keyframes shake-button {
  0%, 100% {
    transform: translateX(0);
  }
  10%, 30%, 50%, 70%, 90% {
    transform: translateX(-2px);
  }
  20%, 40%, 60%, 80% {
    transform: translateX(2px);
  }
}
@-webkit-keyframes shake-button {
  0%, 100% {
    transform: translateX(0);
  }
  10%, 30%, 50%, 70%, 90% {
    transform: translateX(-2px);
  }
  20%, 40%, 60%, 80% {
    transform: translateX(2px);
  }
}
@-o-keyframes shake-button {
  0%, 100% {
    transform: translateX(0);
  }
  10%, 30%, 50%, 70%, 90% {
    transform: translateX(-2px);
  }
  20%, 40%, 60%, 80% {
    transform: translateX(2px);
  }
}
@keyframes shake-button {
  0%, 100% {
    transform: translateX(0);
  }
  10%, 30%, 50%, 70%, 90% {
    transform: translateX(-2px);
  }
  20%, 40%, 60%, 80% {
    transform: translateX(2px);
  }
}
@-moz-keyframes bounce-button {
  0%, 20%, 60%, 100% {
    transform: translateY(0);
  }
  40% {
    transform: translateY(-10px);
  }
  80% {
    transform: translateY(-5px);
  }
}
@-webkit-keyframes bounce-button {
  0%, 20%, 60%, 100% {
    transform: translateY(0);
  }
  40% {
    transform: translateY(-10px);
  }
  80% {
    transform: translateY(-5px);
  }
}
@-o-keyframes bounce-button {
  0%, 20%, 60%, 100% {
    transform: translateY(0);
  }
  40% {
    transform: translateY(-10px);
  }
  80% {
    transform: translateY(-5px);
  }
}
@keyframes bounce-button {
  0%, 20%, 60%, 100% {
    transform: translateY(0);
  }
  40% {
    transform: translateY(-10px);
  }
  80% {
    transform: translateY(-5px);
  }
}
.lightbox-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0,0,0,0.9);
  z-index: 1040;
  opacity: 0;
  visibility: hidden;
  transition: opacity 350ms cubic-bezier(0.25, 0.46, 0.45, 0.94), visibility 350ms cubic-bezier(0.25, 0.46, 0.45, 0.94);
  pointer-events: none;
  will-change: opacity;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}
.lightbox-overlay.active {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}
:root[data-theme='dark'] .lightbox-overlay {
  background: rgba(0,0,0,0.95);
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) .lightbox-overlay {
    background: rgba(0,0,0,0.95);
  }
}
.lightbox-container {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0.8);
  max-width: 90vw;
  max-height: 90vh;
  transition: transform 350ms cubic-bezier(0.25, 0.46, 0.45, 0.94);
  z-index: 1050;
}
.lightbox-overlay.active .lightbox-container {
  transform: translate(-50%, -50%) scale(1);
}
.lightbox-image {
  max-width: 100%;
  max-height: 100%;
  width: auto;
  height: auto;
  object-fit: contain;
  border-radius: 8px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.5);
  transition: opacity 300ms ease-in-out;
}
.lightbox-image.loading {
  opacity: 0.5;
}
.lightbox-image.loaded {
  opacity: 1;
}
.lightbox-close {
  position: absolute;
  top: -50px;
  right: -50px;
  width: 40px;
  height: 40px;
  background: rgba(255,255,255,0.2);
  border: none;
  border-radius: 50%;
  color: #fff;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 250ms ease;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  z-index: 1051;
}
.lightbox-close:hover {
  background: rgba(255,255,255,0.3);
  transform: scale(1.1);
}
.lightbox-close:focus {
  outline: none;
  box-shadow: 0 0 0 3px rgba(255,255,255,0.3);
}
.lightbox-close:active {
  transform: scale(0.95);
}
.lightbox-close svg {
  width: 20px;
  height: 20px;
  transition: transform 200ms ease;
}
.lightbox-close:hover svg {
  transform: rotate(90deg);
}
.lightbox-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 50px;
  height: 50px;
  background: rgba(255,255,255,0.2);
  border: none;
  border-radius: 50%;
  color: #fff;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 250ms ease;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  z-index: 1051;
  opacity: 0;
  visibility: hidden;
}
.lightbox-container.has-navigation .lightbox-nav {
  opacity: 1;
  visibility: visible;
}
.lightbox-nav:hover {
  background: rgba(255,255,255,0.3);
  transform: translateY(-50%) scale(1.1);
}
.lightbox-nav:focus {
  outline: none;
  box-shadow: 0 0 0 3px rgba(255,255,255,0.3);
}
.lightbox-nav:active {
  transform: translateY(-50%) scale(0.95);
}
.lightbox-nav.lightbox-prev {
  left: -70px;
}
.lightbox-nav.lightbox-next {
  right: -70px;
}
.lightbox-nav svg {
  width: 24px;
  height: 24px;
}
.lightbox-info {
  position: absolute;
  bottom: -60px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(0,0,0,0.7);
  color: #fff;
  padding: 0.5rem 1rem;
  border-radius: 6px;
  font-size: 0.9rem;
  text-align: center;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  max-width: 300px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.lightbox-loading {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 40px;
  height: 40px;
  border: 3px solid rgba(255,255,255,0.3);
  border-top: 3px solid #fff;
  border-radius: 50%;
  animation: lightbox-spin 1s linear infinite;
  z-index: 1052;
}
.lightbox-loading.hidden {
  opacity: 0;
  visibility: hidden;
}
.lightbox-image-wrapper {
  position: relative;
  display: inline-block;
  max-width: 100%;
  margin: 1rem 0;
}
.lightbox-image-wrapper img {
  max-width: 100%;
  height: auto;
  border-radius: 6px;
  box-shadow: var(--shadow);
  transition: transform 200ms ease, box-shadow 200ms ease;
}
.lightbox-image-wrapper:hover img {
  transform: scale(1.02);
  box-shadow: var(--shadow-hover);
}
.content-image-clickable {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  cursor: zoom-in;
  z-index: 3;
  transition: background-color 200ms ease;
  border-radius: 6px;
}
.content-image-clickable:hover {
  background-color: rgba(255,255,255,0.1);
}
.content-image-clickable:focus {
  outline: none;
  background-color: rgba(52,152,219,0.2);
  box-shadow: 0 0 0 3px rgba(52,152,219,0.3);
}
.content-image-clickable:active {
  background-color: rgba(255,255,255,0.2);
}
:root[data-theme='dark'] .content-image-clickable:hover {
  background-color: rgba(255,255,255,0.05);
}
:root[data-theme='dark'] .content-image-clickable:active {
  background-color: rgba(255,255,255,0.1);
}
@media (max-width: 480px) {
  .lightbox-container {
    max-width: 98vw;
    max-height: 80vh;
  }
  .lightbox-close {
    top: -35px;
    right: -35px;
    width: 32px;
    height: 32px;
  }
  .lightbox-close svg {
    width: 16px;
    height: 16px;
  }
  .lightbox-nav {
    width: 40px;
    height: 40px;
  }
  .lightbox-nav.lightbox-prev {
    left: -50px;
  }
  .lightbox-nav.lightbox-next {
    right: -50px;
  }
  .lightbox-nav svg {
    width: 18px;
    height: 18px;
  }
  .lightbox-info {
    bottom: -45px;
    font-size: 0.75rem;
    max-width: 200px;
  }
}
@-moz-keyframes lightbox-spin {
  0% {
    transform: translate(-50%, -50%) rotate(0deg);
  }
  100% {
    transform: translate(-50%, -50%) rotate(360deg);
  }
}
@-webkit-keyframes lightbox-spin {
  0% {
    transform: translate(-50%, -50%) rotate(0deg);
  }
  100% {
    transform: translate(-50%, -50%) rotate(360deg);
  }
}
@-o-keyframes lightbox-spin {
  0% {
    transform: translate(-50%, -50%) rotate(0deg);
  }
  100% {
    transform: translate(-50%, -50%) rotate(360deg);
  }
}
@keyframes lightbox-spin {
  0% {
    transform: translate(-50%, -50%) rotate(0deg);
  }
  100% {
    transform: translate(-50%, -50%) rotate(360deg);
  }
}
.post-detail {
  background: var(--bg-color);
  border-radius: 12px;
  box-shadow: var(--shadow);
  transition: var(--transition);
  margin-bottom: 0.5rem;
  overflow: hidden;
  transition: background-color 0.3s ease, opacity 0.3s ease;
}
.post-detail > * {
  margin-top: 0;
  margin-bottom: 0;
}
.post-title-header {
  background: var(--bg-color);
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 0;
  transition: background-color 0.3s ease, border-color 0.3s ease;
}
.post-main-container {
  display: grid;
  grid-template-columns: 2.33fr 1fr;
  gap: 0;
  align-items: stretch;
  border-radius: 8px;
  overflow: hidden;
  margin: 0;
  min-width: 0;
  width: 100%;
}
.post-cover-area {
  position: relative;
  padding: 0.75rem;
  background: var(--bg-color);
  display: flex;
  align-items: center;
  justify-content: center;
  grid-column: 1;
  transition: background-color 0.3s ease, opacity 0.3s ease;
}
@media (max-width: 768px) {
  .post-cover-area {
    grid-column: 1;
    grid-row: 1;
  }
}
.post-cover {
  width: 100%;
  position: relative;
  border-radius: 10px;
  display: block;
  line-height: 0;
  overflow: hidden;
  min-height: 300px;
  aspect-ratio: 16/9;
}
.post-cover img {
  width: 100%;
  height: 100%;
  display: block;
  border-radius: 10px;
  object-fit: cover;
  object-position: center;
}
.post-cover .lazy-image-container {
  position: relative;
  width: 100%;
  height: 100%;
  overflow: hidden;
}
.post-cover .lazy-image {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  border-radius: 10px;
  opacity: 0;
  transition: opacity 0.5s ease-in-out;
  z-index: 2;
}
.post-cover .lazy-image.loaded {
  opacity: 1;
}
.post-cover .lazy-image.error {
  opacity: 0;
}
.post-cover .image-skeleton {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--bg-light);
  border-radius: 10px;
  z-index: 1;
  transition: opacity 0.3s ease-out;
}
.lazy-image.loaded ~ .post-cover .image-skeleton,
.lazy-image.error ~ .post-cover .image-skeleton {
  opacity: 0;
}
.post-cover .image-error {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--bg-light);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  color: var(--text-muted);
  z-index: 3;
  opacity: 0;
  transition: opacity 0.3s ease-in-out;
}
.post-cover .image-error.show {
  opacity: 1;
}
.post-cover .image-error svg {
  margin-bottom: 0.5rem;
  opacity: 0.6;
}
.post-cover .image-error p {
  font-size: 0.9rem;
  margin: 0;
  text-align: center;
}
.post-cover.placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-light);
  color: var(--text-muted);
  width: 100%;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 300px;
  aspect-ratio: 16/9;
}
.post-cover.placeholder svg {
  margin-bottom: 1rem;
  opacity: 0.5;
}
.post-cover.placeholder p {
  font-size: 0.9rem;
  margin: 0;
}
.placeholder-content {
  text-align: center;
  color: var(--text-muted);
}
.placeholder-content svg {
  margin-bottom: 0.25rem;
  opacity: 0.5;
}
.placeholder-content p {
  font-size: 0.85rem;
  margin: 0;
}
.post-info-area {
  padding: 0.75rem;
  background: var(--bg-color);
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  overflow: hidden;
  grid-column: 2;
  transition: background-color 0.3s ease, opacity 0.3s ease;
}
@media (max-width: 768px) {
  .post-info-area {
    grid-column: 1;
    grid-row: 2;
  }
}
.post-title-section {
  margin-bottom: 0;
}
.post-title {
  font-size: 2.2rem;
  font-weight: bold;
  color: var(--primary-color);
  margin-bottom: 0.75rem;
  line-height: 1.3;
}
.post-title-alternatives {
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.5rem;
  align-items: center;
}
.alt-title {
  font-size: 0.75rem;
  font-weight: 400;
  color: var(--text-light);
  line-height: 1.3;
  text-align: center;
  transition: var(--transition);
  background: var(--bg-light);
  padding: 0.4rem 0.8rem;
  border-radius: 14px;
  display: inline-block;
  white-space: nowrap;
}
.alt-title[lang='en'] {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', sans-serif;
  font-size: 0.7rem;
}
.alt-title[lang='ja'] {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Hiragino Sans', 'Hiragino Kaku Gothic ProN', 'Yu Gothic', 'Meiryo', sans-serif;
  font-size: 0.7rem;
}
.post-meta {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  margin-bottom: 0.5rem;
}
.meta-item {
  display: block;
  margin-bottom: 0.25rem;
  color: var(--text-light);
  font-size: 0.9rem;
}
.meta-item:last-child {
  margin-bottom: 0;
}
.meta-item svg {
  width: 16px;
  height: 16px;
  opacity: 0.7;
}
.meta-item.post-category {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.meta-item a {
  color: inherit;
  text-decoration: none;
  transition: all 0.3s ease;
}
.meta-item a:hover {
  color: var(--primary-color);
}
.tags-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.tag-link {
  background: rgba(52,152,219,0.1);
  color: var(--secondary-color);
  padding: 0.25rem 0.5rem;
  border-radius: 14px;
  font-size: 0.8rem;
  transition: var(--transition);
  text-decoration: none;
}
.tag-link:hover {
  background: rgba(52,152,219,0.2);
  color: var(--secondary-color);
}
.meta-label {
  color: var(--text-color);
  font-size: 0.85rem;
  font-weight: 700;
  margin-bottom: 0.125rem;
  display: block;
}
.post-tags .tags-list {
  margin-top: 0.125rem;
}
.resource-website-link {
  color: var(--secondary-color);
  text-decoration: none;
  font-weight: 500;
  transition: var(--transition);
  word-break: break-all;
  display: block;
  margin-top: 0.125rem;
}
.resource-website-link:hover {
  color: #2980b9;
  text-decoration: underline;
}
.resource-platform-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.125rem;
  margin-top: 0.125rem;
}
.resource-platform-tag {
  background: #26a69a;
  color: #fff;
  padding: 0.25rem 0.5rem;
  border-radius: 14px;
  font-size: 0.75rem;
  font-weight: 600;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 4px;
  line-height: 1.2;
}
.resource-platform-tag svg {
  flex-shrink: 0;
}
.resource-platform-tag:hover {
  background: #1e8e7e;
  transform: translateY(-1px);
}
.post-excerpt {
  color: var(--text-light);
  font-size: 0.95rem;
  line-height: 1.6;
  margin-top: auto;
  padding-top: 1rem;
  border-top: 1px solid var(--border-color);
}
.post-content {
  padding: 0.5rem 1rem;
  line-height: 1.8;
  color: var(--text-color);
  margin: 0;
  transition: background-color 0.3s ease, color 0.3s ease;
}
.post-content h1,
.post-content h2,
.post-content h3,
.post-content h4,
.post-content h5,
.post-content h6 {
  color: var(--primary-color);
  margin-top: 1rem;
  margin-bottom: 0.25rem;
}
.post-content h2 {
  font-size: 1.5rem;
  border-bottom: 2px solid var(--border-color);
  padding-bottom: 0.125rem;
}
.post-content h3 {
  font-size: 1.3rem;
}
.post-content p {
  margin-bottom: 0.25rem;
}
.post-content ul,
.post-content ol {
  margin-bottom: 0.25rem;
  padding-left: 1rem;
}
.post-content li {
  margin-bottom: 0.125rem;
}
.post-content blockquote {
  border-left: 4px solid var(--secondary-color);
  padding-left: 0.25rem;
  margin: 0.25rem 0;
  color: var(--text-light);
  font-style: italic;
}
.post-content code {
  background: var(--bg-light);
  padding: 0.1rem 0.2rem;
  border-radius: 4px;
  font-family: 'Courier New', monospace;
  font-size: 0.9rem;
}
.post-content pre {
  background: var(--bg-light);
  padding: 0.25rem;
  border-radius: 8px;
  overflow-x: auto;
  margin: 0.25rem 0;
}
.post-content pre code {
  background: none;
  padding: 0;
}
.post-footer {
  padding: 0.125rem 0.5rem;
  border-top: 1px solid var(--border-color);
  background: var(--bg-light);
  margin: 0;
  line-height: 1.2;
  transition: background-color 0.3s ease, border-color 0.3s ease;
}
.post-footer > *:first-child {
  margin-top: 0;
}
.post-footer > *:last-child {
  margin-bottom: 0;
}
.download-section {
  margin-bottom: 0.125rem;
}
.download-section:last-child {
  margin-bottom: 0;
}
.download-section:first-child {
  margin-top: 0;
}
.download-section h3 {
  color: var(--primary-color);
  font-size: 0.9rem;
  margin-bottom: 0.0625rem;
  margin-top: 0;
  font-weight: 600;
  line-height: 1.2;
}
.download-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.125rem;
}
.download-btn {
  border: none;
  border-radius: 6px;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--secondary-color);
  color: #fff;
  padding: 0.0625rem 0.25rem;
  font-size: 0.8rem;
  border-radius: 4px;
  line-height: 1.2;
  min-height: auto;
}
.download-btn:hover {
  background: #2980b9;
  transform: translateY(-2px);
}
.post-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.5rem;
  margin-bottom: 2rem;
}
.post-item {
  background: var(--bg-color);
  border-radius: 12px;
  box-shadow: var(--shadow);
  transition: var(--transition);
  cursor: pointer;
  overflow: hidden;
  height: fit-content;
}
.post-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}
.post-thumbnail {
  aspect-ratio: 16/9;
  overflow: hidden;
  background: #f8f9fa;
  position: relative;
}
.post-thumbnail img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: all 0.3s ease;
}
.post-thumbnail:hover img {
  transform: scale(1.05);
}
.post-thumbnail-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-light);
  color: var(--text-muted);
  height: 100%;
}
.post-thumbnail-placeholder svg {
  margin-bottom: 1rem;
  opacity: 0.5;
}
.post-thumbnail-placeholder p {
  font-size: 0.9rem;
  margin: 0;
}
.post-item-content {
  padding: 1.5rem;
}
.post-item-title {
  font-size: 1.2rem;
  font-weight: 600;
  color: #333;
  margin-bottom: 0.5rem;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.post-item-title a {
  color: inherit;
  text-decoration: none;
  transition: all 0.3s ease;
}
.post-item-title a:hover {
  color: #2c3e50;
}
.post-item-excerpt {
  color: #666;
  font-size: 0.9rem;
  line-height: 1.6;
  margin-bottom: 1rem;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.post-item-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
  color: #999;
}
.post-item-date {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}
.post-item-date svg {
  width: 14px;
  height: 14px;
}
.post-item-category {
  background: #3498db;
  color: #fff;
  padding: 0.25rem 0.5rem;
  border-radius: 4px;
  font-size: 0.75rem;
  text-decoration: none;
  transition: all 0.3s ease;
}
.post-item-category:hover {
  background: #258bcf;
}
.post-archive {
  margin-bottom: 2rem;
}
.archive-year {
  margin-bottom: 2rem;
}
.archive-year:last-child {
  margin-bottom: 0;
}
.archive-year-title {
  font-size: 1.5rem;
  font-weight: bold;
  color: #2c3e50;
  margin-bottom: 1.5rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid #e9ecef;
}
.archive-month {
  margin-bottom: 1.5rem;
}
.archive-month:last-child {
  margin-bottom: 0;
}
.archive-month-title {
  font-size: 1.1rem;
  font-weight: 600;
  color: #333;
  margin-bottom: 1rem;
}
.archive-post-list {
  list-style: none;
}
.archive-post-item {
  display: flex;
  align-items: center;
  padding: 0.5rem 0;
  border-bottom: 1px solid #e9ecef;
  transition: all 0.3s ease;
}
.archive-post-item:hover {
  background: #f8f9fa;
  padding-left: 0.5rem;
}
.archive-post-item:last-child {
  border-bottom: none;
}
.archive-post-date {
  color: #999;
  font-size: 0.85rem;
  min-width: 80px;
  margin-right: 1rem;
}
.archive-post-title {
  flex: 1;
}
.archive-post-title a {
  color: #333;
  text-decoration: none;
  transition: all 0.3s ease;
}
.archive-post-title a:hover {
  color: #2c3e50;
}
.featured-posts {
  margin-bottom: 2rem;
}
.featured-posts-title {
  font-size: 1.5rem;
  font-weight: bold;
  color: #2c3e50;
  margin-bottom: 1.5rem;
  text-align: center;
}
.featured-post {
  background: var(--bg-color);
  border-radius: 12px;
  box-shadow: var(--shadow);
  transition: var(--transition);
  margin-bottom: 1.5rem;
  overflow: hidden;
}
.featured-post:last-child {
  margin-bottom: 0;
}
.featured-post-content {
  display: flex;
}
.featured-post-image {
  flex: 0 0 300px;
  aspect-ratio: 16/9;
  overflow: hidden;
}
.featured-post-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.featured-post-info {
  flex: 1;
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
}
.featured-post-title {
  font-size: 1.3rem;
  font-weight: bold;
  color: #2c3e50;
  margin-bottom: 0.5rem;
  line-height: 1.3;
}
.featured-post-title a {
  color: inherit;
  text-decoration: none;
  transition: all 0.3s ease;
}
.featured-post-title a:hover {
  color: #3498db;
}
.featured-post-excerpt {
  color: #666;
  line-height: 1.6;
  margin-bottom: 1rem;
  flex: 1;
}
.featured-post-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.9rem;
  color: #999;
  margin-top: auto;
}
.load-more {
  text-align: center;
  margin: 2rem 0;
}
.load-more-btn {
  border: none;
  border-radius: 6px;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--secondary-color);
  color: #fff;
  padding: 1rem 2rem;
  font-size: 1rem;
}
.load-more-btn:hover {
  background: #2980b9;
  transform: translateY(-2px);
}
.load-more-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}
.load-more-btn:disabled:hover {
  transform: none;
  background: #3498db;
}
.empty-state {
  text-align: center;
  padding: 3rem;
  color: #999;
}
.empty-state svg {
  font-size: 4rem;
  margin-bottom: 1.5rem;
  opacity: 0.5;
}
.empty-state h3 {
  font-size: 1.2rem;
  margin-bottom: 0.5rem;
  color: #333;
}
.empty-state p {
  font-size: 0.9rem;
  line-height: 1.6;
}
.post-footer {
  padding: 1.5rem;
  border-top: 1px solid #e9ecef;
  background: #f8f9fa;
}
.resource-info,
.download-section {
  margin-bottom: 2rem;
}
.resource-info:last-child,
.download-section:last-child {
  margin-bottom: 0;
}
.resource-info-title {
  color: #2c3e50;
  font-size: 1.3rem;
  margin-bottom: 1.5rem;
  font-weight: bold;
}
.download-section h3 {
  color: #2c3e50;
  font-size: 1.2rem;
  margin-bottom: 1rem;
}
.resource-details {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
}
.info-section {
  background: #fff;
  border-radius: 8px;
  padding: 1.5rem;
  border: 1px solid #e9ecef;
  box-shadow: 0 1px 3px rgba(0,0,0,0.05);
}
.info-category-title {
  color: #2c3e50;
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  border-bottom: 2px solid #e9ecef;
  padding-bottom: 0.25rem;
}
.info-content {
  color: #333;
  font-size: 0.95rem;
  line-height: 1.5;
}
.website-link {
  color: #3498db;
  text-decoration: none;
  transition: all 0.3s ease;
  word-break: break-all;
}
.website-link:hover {
  color: #2383c4;
  text-decoration: underline;
}
.platform-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.platform-tag {
  background: #26a69a;
  color: #fff;
  padding: 0.25rem 0.5rem;
  border-radius: 14px;
  font-size: 0.8rem;
  font-weight: 500;
  transition: all 0.3s ease;
  display: inline-block;
}
.platform-tag:hover {
  background: #22958b;
  transform: translateY(-1px);
}
.download-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}
.download-btn {
  border: none;
  border-radius: 6px;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--secondary-color);
  color: #fff;
  padding: 0.75rem 1.5rem;
  font-weight: 600;
  gap: 0.5rem;
}
.download-btn:hover {
  background: #2980b9;
  transform: translateY(-2px);
}
.post-tags {
  margin-bottom: 1.5rem;
}
.post-tags-title {
  font-size: 1rem;
  font-weight: 600;
  color: #333;
  margin-bottom: 0.5rem;
}
.post-tags-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.post-tag {
  background: rgba(52,152,219,0.1);
  color: var(--secondary-color);
  padding: 0.25rem 0.5rem;
  border-radius: 14px;
  font-size: 0.8rem;
  transition: var(--transition);
  text-decoration: none;
  font-size: 0.85rem;
}
.post-tag:hover {
  background: rgba(52,152,219,0.2);
  color: var(--secondary-color);
}
.post-categories {
  margin-bottom: 1.5rem;
}
.post-categories-title {
  font-size: 1rem;
  font-weight: 600;
  color: #333;
  margin-bottom: 0.5rem;
}
.post-category-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.post-category {
  background: #2c3e50;
  color: #fff;
  padding: 0.5rem 1rem;
  border-radius: 6px;
  text-decoration: none;
  font-size: 0.85rem;
  transition: all 0.3s ease;
}
.post-category:hover {
  background: #3a5169;
}
.post-stats {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem;
  background: #fff;
  border-radius: 8px;
  margin-bottom: 1.5rem;
}
.post-stat-item {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  color: #999;
  font-size: 0.9rem;
}
.post-stat-item svg {
  width: 16px;
  height: 16px;
}
.post-author {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.5rem;
  background: #fff;
  border-radius: 8px;
  margin-bottom: 1.5rem;
}
.author-avatar {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  overflow: hidden;
}
.author-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.author-info {
  flex: 1;
}
.author-name {
  font-size: 1.1rem;
  font-weight: 600;
  color: #333;
  margin-bottom: 0.25rem;
}
.author-bio {
  color: #666;
  font-size: 0.9rem;
  line-height: 1.5;
}
.author-links {
  display: flex;
  gap: 0.5rem;
  margin-top: 0.5rem;
}
.author-link {
  color: #999;
  text-decoration: none;
  transition: all 0.3s ease;
}
.author-link:hover {
  color: #2c3e50;
}
.post-navigation {
  display: flex;
  justify-content: space-between;
  gap: 1.5rem;
  margin: 2rem 0;
}
.post-nav-item {
  flex: 1;
  background: var(--bg-color);
  border-radius: 12px;
  box-shadow: var(--shadow);
  transition: var(--transition);
  padding: 1.5rem;
  text-decoration: none;
  transition: all 0.3s ease;
}
.post-nav-item:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 20px rgba(0,0,0,0.15);
}
.post-nav-item.prev {
  text-align: left;
}
.post-nav-item.next {
  text-align: right;
}
.post-nav-label {
  color: #999;
  font-size: 0.85rem;
  margin-bottom: 0.25rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.post-nav-title {
  color: #333;
  font-weight: 600;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.post-share {
  text-align: center;
  margin: 2rem 0;
}
.post-share-title {
  font-size: 1rem;
  font-weight: 600;
  color: #333;
  margin-bottom: 1rem;
}
.share-buttons {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}
.share-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  color: #fff;
  text-decoration: none;
  transition: all 0.3s ease;
}
.share-btn:hover {
  transform: translateY(-2px);
}
.share-btn.twitter {
  background: #1da1f2;
}
.share-btn.facebook {
  background: #4267b2;
}
.share-btn.linkedin {
  background: #0077b5;
}
.share-btn.email {
  background: #999;
}
.post-comments {
  margin-top: 2rem;
  padding: 2rem;
  background: #fff;
  border-radius: 12px;
  box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}
.comments-title {
  font-size: 1.3rem;
  font-weight: bold;
  color: #2c3e50;
  margin-bottom: 1.5rem;
  text-align: center;
}
:root[data-theme='dark'] .main-content {
  background: var(--dark-content-bg);
}
:root[data-theme='dark'] .post-detail,
:root[data-theme='dark'] .post-cover-area,
:root[data-theme='dark'] .post-info-area,
:root[data-theme='dark'] .post-content,
:root[data-theme='dark'] .post-footer {
  background: var(--dark-content-bg);
}
:root[data-theme='dark'] .sidebar {
  background: #2d2d2d;
  opacity: 1;
}
html {
  background-color: var(--bg-color);
  transition: background-color 0.3s ease;
  scroll-behavior: smooth;
}
html::-webkit-scrollbar {
  width: 6px;
}
html::-webkit-scrollbar-track {
  background: rgba(0,0,0,0.05);
}
html::-webkit-scrollbar-thumb {
  background: rgba(0,0,0,0.2);
  border-radius: 3px;
}
:root[data-theme='dark'] html::-webkit-scrollbar-track {
  background: rgba(255,255,255,0.05);
}
:root[data-theme='dark'] html::-webkit-scrollbar-thumb {
  background: rgba(255,255,255,0.2);
}
@media print {
  .sidebar,
  .mobile-menu-toggle,
  .mobile-overlay,
  .back-to-top,
  .post-share,
  .post-navigation {
    display: none !important;
  }
  .main-content {
    margin-left: 0 !important;
    padding: 0 !important;
  }
  .post-detail {
    box-shadow: none !important;
    border: 1px solid #e9ecef !important;
  }
  .post-content {
    font-size: 12pt !important;
    line-height: 1.5 !important;
  }
  a {
    color: #333 !important;
    text-decoration: underline !important;
  }
}
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}
:root[data-theme='dark'] .main-content,
:root[data-theme='dark'] .post-detail,
:root[data-theme='dark'] .post-cover-area,
:root[data-theme='dark'] .post-info-area,
:root[data-theme='dark'] .post-content,
:root[data-theme='dark'] .post-footer {
  color: var(--text-color);
}
:root[data-theme='dark'] .main-content h1,
:root[data-theme='dark'] .post-detail h1,
:root[data-theme='dark'] .post-cover-area h1,
:root[data-theme='dark'] .post-info-area h1,
:root[data-theme='dark'] .post-content h1,
:root[data-theme='dark'] .post-footer h1,
:root[data-theme='dark'] .main-content h2,
:root[data-theme='dark'] .post-detail h2,
:root[data-theme='dark'] .post-cover-area h2,
:root[data-theme='dark'] .post-info-area h2,
:root[data-theme='dark'] .post-content h2,
:root[data-theme='dark'] .post-footer h2,
:root[data-theme='dark'] .main-content h3,
:root[data-theme='dark'] .post-detail h3,
:root[data-theme='dark'] .post-cover-area h3,
:root[data-theme='dark'] .post-info-area h3,
:root[data-theme='dark'] .post-content h3,
:root[data-theme='dark'] .post-footer h3,
:root[data-theme='dark'] .main-content h4,
:root[data-theme='dark'] .post-detail h4,
:root[data-theme='dark'] .post-cover-area h4,
:root[data-theme='dark'] .post-info-area h4,
:root[data-theme='dark'] .post-content h4,
:root[data-theme='dark'] .post-footer h4,
:root[data-theme='dark'] .main-content h5,
:root[data-theme='dark'] .post-detail h5,
:root[data-theme='dark'] .post-cover-area h5,
:root[data-theme='dark'] .post-info-area h5,
:root[data-theme='dark'] .post-content h5,
:root[data-theme='dark'] .post-footer h5,
:root[data-theme='dark'] .main-content h6,
:root[data-theme='dark'] .post-detail h6,
:root[data-theme='dark'] .post-cover-area h6,
:root[data-theme='dark'] .post-info-area h6,
:root[data-theme='dark'] .post-content h6,
:root[data-theme='dark'] .post-footer h6 {
  color: var(--dark-heading-color);
  text-shadow: var(--dark-heading-shadow);
}
:root[data-theme='dark'] .main-content p,
:root[data-theme='dark'] .post-detail p,
:root[data-theme='dark'] .post-cover-area p,
:root[data-theme='dark'] .post-info-area p,
:root[data-theme='dark'] .post-content p,
:root[data-theme='dark'] .post-footer p,
:root[data-theme='dark'] .main-content span,
:root[data-theme='dark'] .post-detail span,
:root[data-theme='dark'] .post-cover-area span,
:root[data-theme='dark'] .post-info-area span,
:root[data-theme='dark'] .post-content span,
:root[data-theme='dark'] .post-footer span,
:root[data-theme='dark'] .main-content div,
:root[data-theme='dark'] .post-detail div,
:root[data-theme='dark'] .post-cover-area div,
:root[data-theme='dark'] .post-info-area div,
:root[data-theme='dark'] .post-content div,
:root[data-theme='dark'] .post-footer div {
  color: var(--text-color);
  text-shadow: var(--dark-text-shadow);
}
@media (prefers-color-scheme: dark) {
  :root[data-theme='dark'] img,
  :root:not([data-theme]) img {
    filter: brightness(0.9);
  }
  :root[data-theme='dark'] code,
  :root:not([data-theme]) code,
  :root[data-theme='dark'] pre,
  :root:not([data-theme]) pre {
    background: rgba(255,255,255,0.1);
    color: var(--text-color);
  }
  :root[data-theme='dark'] table,
  :root:not([data-theme]) table {
    border-color: var(--border-color);
  }
  :root[data-theme='dark'] th,
  :root:not([data-theme]) th,
  :root[data-theme='dark'] td,
  :root:not([data-theme]) td {
    border-color: var(--border-color);
  }
  :root[data-theme='dark'] input,
  :root:not([data-theme]) input,
  :root[data-theme='dark'] textarea,
  :root:not([data-theme]) textarea,
  :root[data-theme='dark'] select,
  :root:not([data-theme]) select {
    background: var(--bg-light);
    color: var(--text-color);
    border-color: var(--border-color);
  }
  :root[data-theme='dark'] ::-webkit-scrollbar-track,
  :root:not([data-theme]) ::-webkit-scrollbar-track {
    background: rgba(255,255,255,0.05);
  }
  :root[data-theme='dark'] ::-webkit-scrollbar-thumb,
  :root:not([data-theme]) ::-webkit-scrollbar-thumb {
    background: rgba(255,255,255,0.2);
  }
  :root[data-theme='dark'] .main-content,
  :root:not([data-theme]) .main-content {
    background: var(--dark-content-bg);
  }
  :root[data-theme='dark'] .post-detail,
  :root:not([data-theme]) .post-detail,
  :root[data-theme='dark'] .post-cover-area,
  :root:not([data-theme]) .post-cover-area,
  :root[data-theme='dark'] .post-info-area,
  :root:not([data-theme]) .post-info-area,
  :root[data-theme='dark'] .post-content,
  :root:not([data-theme]) .post-content,
  :root[data-theme='dark'] .post-footer,
  :root:not([data-theme]) .post-footer {
    background: var(--dark-content-bg);
  }
  :root[data-theme='dark'] .sidebar,
  :root:not([data-theme]) .sidebar {
    background: #1a1a1a;
    opacity: 1;
  }
}
.no-scroll {
  overflow: hidden;
}
.text-truncate {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.text-clamp-2 {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.text-clamp-3 {
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.fade-in {
  animation: fadeIn 0.3s ease-out;
}
.slide-in-up {
  animation: slideInUp 0.3s ease-out;
}
.slide-in-left {
  animation: slideInLeft 0.3s ease-out;
}
.pulse {
  animation: pulse 2s infinite;
}
.responsive-image {
  width: 100%;
  height: auto;
  display: block;
}