:root {
  --oracle-red: #c74634;
  --oracle-orange: #f90;
  --oracle-black: #000;
  --oracle-dark: #1a1a1a;
  --oracle-gray: #6b7280;
  --oracle-light: #f5f5f5;
  --oracle-border: #e5e5e5;
  --oracle-white: #fff;
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  --container-max-width: 1280px;
  --section-padding: 5rem;
  --navbar-height: 64px;
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
  --shadow-sm: 0 1px 2px 0 rgba(0,0,0,0.05);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -2px rgba(0,0,0,0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -4px rgba(0,0,0,0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.1), 0 8px 10px -6px rgba(0,0,0,0.1);
}
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
  font-size: 16px;
}
body {
  font-family: var(--font-family);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--oracle-black);
  background-color: var(--oracle-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}
img {
  max-width: 100%;
  height: auto;
  display: block;
}
.text-center {
  text-align: center;
}
.text-white {
  color: var(--oracle-white) !important;
}
.text-red {
  color: var(--oracle-red) !important;
}
.container {
  width: 100%;
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}
.preloader {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--oracle-white);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  transition: opacity 0.5s ease, visibility 0.5s ease;
}
.preloader.hidden {
  opacity: 0;
  visibility: hidden;
}
.preloader .preloader-content {
  text-align: center;
}
.preloader .preloader-spinner {
  width: 50px;
  height: 50px;
  border: 3px solid var(--oracle-border);
  border-top-color: var(--oracle-red);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin: 0 auto 1rem;
}
.preloader .preloader-text {
  font-size: 1rem;
  font-weight: 600;
  color: var(--oracle-dark);
}
.scroll-progress-bar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: transparent;
  z-index: 1001;
}
.scroll-progress-bar .scroll-progress-fill {
  height: 100%;
  background: var(--oracle-red);
  width: 0%;
  transition: width 0.1s ease;
}
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--navbar-height);
  background: var(--oracle-white);
  border-bottom: 1px solid var(--oracle-border);
  z-index: 1000;
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}
.navbar.hidden {
  transform: translateY(-100%);
}
.navbar.scrolled {
  box-shadow: var(--shadow-sm);
}
.navbar .navbar-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  padding: 0 1.5rem;
  max-width: var(--container-max-width);
  margin: 0 auto;
}
.navbar .navbar-logo {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--oracle-black);
}
.navbar .navbar-logo .logo-highlight {
  color: var(--oracle-red);
}
.navbar .navbar-menu {
  display: flex;
  align-items: center;
  gap: 2rem;
}
.navbar .navbar-link {
  position: relative;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--oracle-gray);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.5rem 0;
  transition: color var(--transition-fast);
}
.navbar .navbar-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--oracle-red);
  transition: width var(--transition-fast);
}
.navbar .navbar-link:hover,
.navbar .navbar-link.active {
  color: var(--oracle-red);
}
.navbar .navbar-link:hover::after,
.navbar .navbar-link.active::after {
  width: 100%;
}
.navbar .navbar-link i {
  margin-right: 0.5rem;
}
.navbar .navbar-search-btn {
  background: none;
  border: none;
  color: var(--oracle-gray);
  font-size: 1rem;
  cursor: pointer;
  padding: 0.5rem;
  transition: color var(--transition-fast);
}
.navbar .navbar-search-btn:hover {
  color: var(--oracle-red);
}
.navbar .navbar-toggle {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 24px;
  height: 18px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}
.navbar .navbar-toggle .toggle-bar {
  width: 100%;
  height: 2px;
  background: var(--oracle-black);
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}
.navbar .navbar-mobile {
  display: none;
  position: absolute;
  top: var(--navbar-height);
  left: 0;
  width: 100%;
  background: var(--oracle-white);
  border-bottom: 1px solid var(--oracle-border);
  padding: 1rem 1.5rem;
  box-shadow: var(--shadow-lg);
}
.navbar .navbar-mobile.active {
  display: block;
}
.navbar .navbar-mobile-link {
  display: flex;
  align-items: center;
  padding: 0.75rem 0;
  font-size: 1rem;
  font-weight: 500;
  color: var(--oracle-dark);
  border-bottom: 1px solid var(--oracle-border);
}
.navbar .navbar-mobile-link:last-child {
  border-bottom: none;
}
.navbar .navbar-mobile-link.active {
  color: var(--oracle-red);
}
.navbar .navbar-mobile-link i {
  width: 24px;
  margin-right: 0.75rem;
  color: var(--oracle-red);
}
.hero-section {
  position: relative;
  min-height: 100vh;
  padding-top: var(--navbar-height);
  background: var(--oracle-white);
  display: flex;
  align-items: center;
}
.hero-section .container {
  width: 100%;
}
.hero-section .hero-wrapper {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
  padding: 4rem 0;
}
.hero-section .hero-wrapper.split {
  grid-template-columns: 1.2fr 0.8fr;
}
.hero-section .hero-content {
  max-width: 600px;
}
.hero-section .hero-badge {
  display: inline-block;
  padding: 0.375rem 1rem;
  font-size: 0.875rem;
  font-weight: 600;
  border-radius: 9999px;
  margin-bottom: 1.5rem;
}
.hero-section .hero-title {
  font-size: 3.5rem;
  font-weight: 800;
  line-height: 1.1;
  color: var(--oracle-black);
  margin-bottom: 0.5rem;
  letter-spacing: -0.02em;
}
.hero-section .hero-subtitle {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--oracle-red);
  margin-bottom: 1rem;
}
.hero-section .hero-description {
  font-size: 1.125rem;
  line-height: 1.7;
  color: var(--oracle-gray);
  margin-bottom: 2rem;
}
.hero-section .hero-buttons {
  display: flex;
  gap: 1rem;
  margin-bottom: 2rem;
}
.hero-section .hero-social {
  display: flex;
  gap: 1rem;
}
.hero-section .hero-social .social-link {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--oracle-light);
  color: var(--oracle-gray);
  font-size: 1.125rem;
  transition: all var(--transition-fast);
}
.hero-section .hero-social .social-link:hover {
  background: var(--oracle-red);
  color: var(--oracle-white);
  transform: translateY(-2px);
}
.hero-section .hero-image {
  position: relative;
  display: flex;
  justify-content: center;
}
.hero-section .hero-image .image-wrapper {
  position: relative;
  width: 320px;
  height: 320px;
  border-radius: 50%;
  overflow: hidden;
  border: 4px solid rgba(199,70,52,0.2);
  box-shadow: var(--shadow-xl);
}
.hero-section .hero-image .image-wrapper img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.hero-section .hero-image .image-badge {
  position: absolute;
  bottom: 1rem;
  right: 1rem;
  background: var(--oracle-red);
  color: var(--oracle-white);
  padding: 0.5rem 1rem;
  border-radius: 9999px;
  font-size: 0.875rem;
  font-weight: 700;
  box-shadow: var(--shadow-md);
}
.hero-section .scroll-indicator {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
}
.hero-section .scroll-indicator .scroll-mouse {
  width: 26px;
  height: 40px;
  border: 2px solid var(--oracle-border);
  border-radius: 13px;
  display: flex;
  justify-content: center;
  padding-top: 8px;
}
.hero-section .scroll-indicator .scroll-wheel {
  width: 4px;
  height: 8px;
  background: var(--oracle-red);
  border-radius: 2px;
  animation: scrollWheel 1.5s ease-in-out infinite;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.875rem 1.5rem;
  font-size: 1rem;
  font-weight: 600;
  border-radius: 0.375rem;
  transition: all var(--transition-fast);
  cursor: pointer;
  border: none;
}
.btn:hover {
  transform: translateY(-2px);
}
.btn.btn-primary {
  background: var(--oracle-red);
  color: var(--oracle-white);
  box-shadow: var(--shadow-md);
}
.btn.btn-primary:hover {
  background: #b33f2f;
  box-shadow: var(--shadow-lg);
}
.btn.btn-secondary {
  background: transparent;
  color: var(--oracle-black);
  border: 2px solid var(--oracle-black);
}
.btn.btn-secondary:hover {
  background: var(--oracle-black);
  color: var(--oracle-white);
}
.stats-section {
  padding: 4rem 0;
}
.stats-section .stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
}
.stats-section .stat-item {
  text-align: center;
}
.stats-section .stat-icon {
  font-size: 2rem;
  color: var(--oracle-red);
  margin-bottom: 1rem;
}
.stats-section .stat-value {
  font-size: 3rem;
  font-weight: 800;
  color: var(--oracle-black);
  line-height: 1;
  margin-bottom: 0.5rem;
}
.stats-section .stat-label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--oracle-gray);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.posts-section {
  padding: var(--section-padding) 0;
  background: var(--oracle-white);
}
.posts-section .section-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 3rem;
}
.posts-section .section-title-wrapper .section-title {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--oracle-black);
  margin-bottom: 0.5rem;
}
.posts-section .section-title-wrapper .section-subtitle {
  font-size: 1.125rem;
  color: var(--oracle-gray);
}
.posts-section .view-all-link {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 600;
  color: var(--oracle-red);
}
.posts-section .view-all-link:hover {
  text-decoration: underline;
}
.posts-section .view-all-link i {
  font-size: 0.875rem;
}
.posts-section .posts-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}
.post-card {
  background: var(--oracle-white);
  border-radius: 0.5rem;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
}
.post-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}
.post-card .post-card-image {
  display: block;
  aspect-ratio: 16/9;
  overflow: hidden;
}
.post-card .post-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}
.post-card .post-card-image.placeholder {
  background: var(--oracle-light);
  display: flex;
  align-items: center;
  justify-content: center;
}
.post-card .post-card-image .image-placeholder {
  font-size: 3rem;
  color: var(--oracle-border);
}
.post-card:hover .post-card-image img {
  transform: scale(1.05);
}
.post-card .post-card-content {
  padding: 1.5rem;
}
.post-card .post-card-categories {
  margin-bottom: 0.75rem;
}
.post-card .post-card-categories .category-badge {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--oracle-red);
  background: rgba(199,70,52,0.1);
  border-radius: 0.25rem;
}
.post-card .post-card-title {
  font-size: 1.125rem;
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 0.75rem;
}
.post-card .post-card-title a {
  color: var(--oracle-black);
}
.post-card .post-card-title a:hover {
  color: var(--oracle-red);
}
.post-card .post-card-excerpt {
  font-size: 0.875rem;
  line-height: 1.6;
  color: var(--oracle-gray);
  margin-bottom: 1rem;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.post-card .post-card-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}
.post-card .post-card-meta .meta-date {
  font-size: 0.875rem;
  color: var(--oracle-gray);
}
.post-card .post-card-meta .meta-date i {
  margin-right: 0.25rem;
}
.post-card .post-card-meta .read-more {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--oracle-red);
  opacity: 0;
  transition: opacity var(--transition-fast);
}
.post-card:hover .read-more {
  opacity: 1;
}
.post-card .post-card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.post-card .post-card-tags .tag-link {
  font-size: 0.75rem;
  color: var(--oracle-gray);
  background: var(--oracle-light);
  padding: 0.25rem 0.5rem;
  border-radius: 0.25rem;
}
.post-card .post-card-tags .tag-link:hover {
  color: var(--oracle-red);
}
.expertise-section {
  padding: var(--section-padding) 0;
}
.expertise-section .section-header {
  text-align: center;
  margin-bottom: 4rem;
}
.expertise-section .section-header .section-title {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
}
.expertise-section .section-header .section-subtitle {
  font-size: 1.125rem;
  color: #fff;
  max-width: 600px;
  margin: 0 auto;
}
.expertise-section .expertise-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 3rem;
}
.expertise-section .expertise-card {
  text-align: center;
}
.expertise-section .expertise-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 80px;
  height: 80px;
  border-radius: 1rem;
  background: rgba(199,70,52,0.1);
  color: var(--oracle-red);
  font-size: 2rem;
  margin-bottom: 1.5rem;
  transition: all var(--transition-normal);
}
.expertise-section .expertise-card:hover .expertise-icon {
  background: var(--oracle-red);
  color: var(--oracle-white);
  transform: scale(1.1);
}
.expertise-section .expertise-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--oracle-black);
  margin-bottom: 0.75rem;
}
.expertise-section .expertise-description {
  font-size: 0.875rem;
  line-height: 1.6;
  color: var(--oracle-black);
}
.certs-section {
  padding: var(--section-padding) 0;
}
.certs-section .certs-wrapper {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 4rem;
  align-items: center;
}
.certs-section .certs-content .section-title {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--oracle-black);
  margin-bottom: 1rem;
}
.certs-section .certs-content .section-subtitle {
  font-size: 1.125rem;
  color: var(--oracle-gray);
  margin-bottom: 2rem;
}
.certs-section .certs-features {
  list-style: none;
}
.certs-section .certs-features li {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
  font-size: 1rem;
  color: var(--oracle-dark);
}
.certs-section .certs-features li i {
  color: var(--oracle-red);
}
.certs-section .certs-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}
.certs-section .cert-card {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1.25rem;
  background: var(--oracle-white);
  border: 2px solid var(--oracle-border);
  border-radius: 0.5rem;
  transition: all var(--transition-fast);
}
.certs-section .cert-card:hover {
  border-color: var(--oracle-red);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}
.certs-section .cert-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 0.5rem;
  background: rgba(199,70,52,0.1);
  color: var(--oracle-red);
  font-size: 1.25rem;
  flex-shrink: 0;
}
.certs-section .cert-info {
  flex: 1;
}
.certs-section .cert-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.25rem;
}
.certs-section .cert-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--oracle-black);
}
.certs-section .cert-level {
  padding: 0.125rem 0.5rem;
  font-size: 0.625rem;
  font-weight: 700;
  color: var(--oracle-white);
  background: var(--oracle-red);
  border-radius: 0.25rem;
}
.certs-section .cert-description {
  font-size: 0.75rem;
  line-height: 1.5;
  color: var(--oracle-gray);
}
.footer {
  padding: 4rem 0 2rem;
  background: var(--oracle-dark);
  color: var(--oracle-white);
}
.footer .footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 4rem;
  margin-bottom: 3rem;
}
.footer .footer-logo {
  font-size: 1.5rem;
  font-weight: 800;
  margin-bottom: 1rem;
}
.footer .footer-logo .logo-highlight {
  color: var(--oracle-red);
}
.footer .footer-description {
  font-size: 0.875rem;
  line-height: 1.7;
  color: rgba(255,255,255,0.6);
  margin-bottom: 1.5rem;
}
.footer .footer-social {
  display: flex;
  gap: 0.75rem;
}
.footer .footer-social .social-link {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(255,255,255,0.1);
  color: rgba(255,255,255,0.6);
  transition: all var(--transition-fast);
}
.footer .footer-social .social-link:hover {
  background: var(--oracle-red);
  color: var(--oracle-white);
}
.footer .footer-title {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--oracle-white);
}
.footer .footer-links {
  list-style: none;
}
.footer .footer-links li {
  margin-bottom: 0.5rem;
}
.footer .footer-links a {
  font-size: 0.875rem;
  color: rgba(255,255,255,0.6);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.footer .footer-links a:hover {
  color: var(--oracle-red);
}
.footer .footer-links a i {
  width: 16px;
}
.footer .footer-contact {
  font-size: 0.875rem;
  color: rgba(255,255,255,0.6);
}
.footer .footer-contact p {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}
.footer .footer-contact p i {
  color: var(--oracle-red);
}
.footer .footer-contact .footer-wechat-qr {
  margin-top: 1rem;
  background: var(--oracle-white);
  border-radius: 0.5rem;
  display: inline-block;
  max-width: 40%;
}
.footer .footer-contact .footer-wechat-qr img {
  width: 100%;
  height: auto;
  border-radius: 0.25rem;
}
.footer .footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 2rem;
  border-top: 1px solid rgba(255,255,255,0.1);
  font-size: 0.875rem;
  color: rgba(255,255,255,0.4);
}
.footer .footer-stats {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.footer .footer-stats .stats-separator {
  margin: 0 0.25rem;
}
.post-container {
  padding: calc(var(--navbar-height) + 3rem) 0 4rem;
}
.post-container .post-wrapper {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 4rem;
}
.post-container .post-content {
  min-width: 0;
}
.post-container .post-header {
  margin-bottom: 2rem;
}
.post-container .post-categories {
  margin-bottom: 1rem;
}
.post-container .post-categories .category-badge {
  display: inline-block;
  padding: 0.375rem 1rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--oracle-red);
  background: rgba(199,70,52,0.1);
  border-radius: 0.25rem;
  margin-right: 0.5rem;
}
.post-container .post-title {
  font-size: 2.5rem;
  font-weight: 800;
  line-height: 1.2;
  color: var(--oracle-black);
  margin-bottom: 1rem;
}
.post-container .post-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.875rem;
  color: var(--oracle-gray);
}
.post-container .post-meta .meta-item {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}
.post-container .post-meta .meta-item i {
  color: var(--oracle-red);
}
.post-container .post-body {
  font-size: 1rem;
  line-height: 1.8;
  color: var(--oracle-dark);
}
.post-container .post-body h1,
.post-container .post-body h2,
.post-container .post-body h3,
.post-container .post-body h4,
.post-container .post-body h5,
.post-container .post-body h6 {
  margin-top: 2.5rem;
  margin-bottom: 1rem;
  font-weight: 700;
  line-height: 1.3;
}
.post-container .post-body h1 {
  font-size: 2rem;
}
.post-container .post-body h2 {
  font-size: 1.75rem;
}
.post-container .post-body h3 {
  font-size: 1.5rem;
}
.post-container .post-body h4 {
  font-size: 1.25rem;
}
.post-container .post-body p {
  margin-bottom: 1.5rem;
}
.post-container .post-body a {
  color: var(--oracle-red);
  text-decoration: underline;
  text-underline-offset: 0.2em;
}
.post-container .post-body a:hover {
  color: #b33f2f;
}
.post-container .post-body img {
  border-radius: 0.5rem;
  margin: 2rem 0;
}
.post-container .post-body code {
  font-family: var(--font-mono);
  font-size: 0.875em;
  padding: 0.2em 0.4em;
  background: var(--oracle-light);
  border-radius: 0.25rem;
}
.post-container .post-body pre {
  background: var(--oracle-dark);
  padding: 1.5rem;
  border-radius: 0.5rem;
  overflow-x: auto;
  margin: 2rem 0;
}
.post-container .post-body pre code {
  background: none;
  padding: 0;
  color: var(--oracle-white);
}
.post-container .post-body figure.highlight {
  background: var(--oracle-dark);
  border-radius: 0.5rem;
  overflow: hidden;
  margin: 2rem 0;
  position: relative;
}
.post-container .post-body figure.highlight .copy-btn {
  position: absolute;
  top: 0.75rem;
  right: 0.75rem;
  width: 36px;
  height: 36px;
  background: rgba(255,255,255,0.15);
  border: 1px solid rgba(255,255,255,0.25);
  border-radius: 0.5rem;
  color: rgba(255,255,255,0.7);
  font-size: 0.875rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
  opacity: 0.6;
  z-index: 10;
}
.post-container .post-body figure.highlight .copy-btn:hover {
  background: rgba(255,255,255,0.3);
  color: var(--oracle-white);
  opacity: 1;
}
.post-container .post-body figure.highlight .copy-btn.copied {
  background: var(--oracle-red);
  border-color: var(--oracle-red);
  color: var(--oracle-white);
  opacity: 1;
}
.post-container .post-body figure.highlight .copy-btn.copied i::before {
  content: "\f00c";
}
.post-container .post-body figure.highlight:hover .copy-btn {
  opacity: 1;
}
.post-container .post-body figure.highlight table {
  width: 100%;
  border-collapse: collapse;
}
.post-container .post-body figure.highlight tr {
  border-bottom: 1px solid rgba(255,255,255,0.1);
}
.post-container .post-body figure.highlight tr:last-child {
  border-bottom: none;
}
.post-container .post-body figure.highlight td {
  padding: 0;
  vertical-align: top;
}
.post-container .post-body figure.highlight td.gutter {
  width: 50px;
  background: rgba(0,0,0,0.3);
  padding: 1rem 0.5rem;
  text-align: right;
  user-select: none;
}
.post-container .post-body figure.highlight td.gutter pre {
  background: none;
  padding: 0;
  margin: 0;
}
.post-container .post-body figure.highlight td.gutter .line {
  color: rgba(255,255,255,0.4);
  font-size: 0.875em;
  line-height: 1.6;
}
.post-container .post-body figure.highlight td.code {
  padding: 1rem;
  overflow-x: auto;
}
.post-container .post-body figure.highlight td.code pre {
  background: none;
  padding: 0;
  margin: 0;
}
.post-container .post-body figure.highlight td.code .line {
  color: var(--oracle-white);
  font-size: 0.875em;
  line-height: 1.6;
}
.post-container .post-body blockquote {
  border-left: 4px solid var(--oracle-red);
  padding-left: 1.5rem;
  margin: 2rem 0;
  font-style: italic;
  color: var(--oracle-gray);
}
.post-container .post-body ul,
.post-container .post-body ol {
  margin-bottom: 1.5rem;
  padding-left: 1.5rem;
}
.post-container .post-body li {
  margin-bottom: 0.5rem;
}
.post-container .post-tags {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--oracle-border);
}
.post-container .post-tags i {
  color: var(--oracle-red);
  margin-right: 0.5rem;
}
.post-container .post-tags .tag-link {
  padding: 0.375rem 0.75rem;
  font-size: 0.875rem;
  color: var(--oracle-gray);
  background: var(--oracle-light);
  border-radius: 0.25rem;
  transition: all var(--transition-fast);
}
.post-container .post-tags .tag-link:hover {
  color: var(--oracle-white);
  background: var(--oracle-red);
}
.post-copyright {
  margin-top: 3rem;
  padding: 1.5rem;
  background: var(--oracle-light);
  border-radius: 0.5rem;
  border-left: 4px solid var(--oracle-red);
}
.post-copyright .copyright-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1rem;
  font-weight: 700;
  color: var(--oracle-black);
  margin-bottom: 1rem;
}
.post-copyright .copyright-header i {
  color: var(--oracle-red);
}
.post-copyright .copyright-content {
  font-size: 0.875rem;
  color: var(--oracle-gray);
}
.post-copyright .copyright-content p {
  margin-bottom: 0.5rem;
}
.post-copyright .copyright-content a {
  color: var(--oracle-red);
}
.post-copyright .copyright-content a:hover {
  text-decoration: underline;
}
.post-nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--oracle-border);
}
.post-nav .post-nav-prev,
.post-nav .post-nav-next {
  display: flex;
  flex-direction: column;
  padding: 1.5rem;
  background: var(--oracle-light);
  border-radius: 0.5rem;
  transition: all var(--transition-fast);
}
.post-nav .post-nav-prev:hover:not(.disabled),
.post-nav .post-nav-next:hover:not(.disabled) {
  background: var(--oracle-red);
  color: var(--oracle-white);
}
.post-nav .post-nav-prev:hover:not(.disabled) .nav-label,
.post-nav .post-nav-next:hover:not(.disabled) .nav-label,
.post-nav .post-nav-prev:hover:not(.disabled) .nav-title,
.post-nav .post-nav-next:hover:not(.disabled) .nav-title {
  color: var(--oracle-white);
}
.post-nav .post-nav-prev.disabled,
.post-nav .post-nav-next.disabled {
  opacity: 0.5;
  cursor: not-allowed;
}
.post-nav .post-nav-next {
  text-align: right;
  align-items: flex-end;
}
.post-nav .nav-label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--oracle-red);
  margin-bottom: 0.5rem;
}
.post-nav .nav-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--oracle-black);
  line-height: 1.4;
}
.toc-sidebar {
  position: sticky;
  top: calc(var(--navbar-height) + 2rem);
  height: fit-content;
}
.toc-sidebar .toc-wrapper {
  background: var(--oracle-white);
  border: 1px solid var(--oracle-border);
  border-radius: 0.5rem;
  overflow: hidden;
}
.toc-sidebar .toc-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 1rem 1.25rem;
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--oracle-black);
  border-bottom: 1px solid var(--oracle-border);
}
.toc-sidebar .toc-header i {
  color: var(--oracle-red);
}
.toc-sidebar .toc-body {
  padding: 1rem 0;
  max-height: calc(100vh - 300px);
  overflow-y: auto;
}
.toc-sidebar .toc-body ol {
  list-style: none;
  padding: 0;
}
.toc-sidebar .toc-body li {
  margin: 0;
}
.toc-sidebar .toc-body a {
  display: block;
  padding: 0.5rem 1.25rem;
  font-size: 0.875rem;
  color: var(--oracle-gray);
  border-left: 2px solid transparent;
  transition: all var(--transition-fast);
}
.toc-sidebar .toc-body a:hover,
.toc-sidebar .toc-body a.active {
  color: var(--oracle-red);
  border-left-color: var(--oracle-red);
  background: rgba(199,70,52,0.05);
}
.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0.5rem;
  margin-top: 4rem;
}
.pagination .pagination-prev,
.pagination .pagination-next {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.625rem 1rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--oracle-dark);
  background: var(--oracle-light);
  border-radius: 0.375rem;
  transition: all var(--transition-fast);
}
.pagination .pagination-prev:hover:not(.disabled),
.pagination .pagination-next:hover:not(.disabled) {
  background: var(--oracle-red);
  color: var(--oracle-white);
}
.pagination .pagination-prev.disabled,
.pagination .pagination-next.disabled {
  opacity: 0.5;
  cursor: not-allowed;
}
.pagination .pagination-numbers {
  display: flex;
  gap: 0.25rem;
}
.pagination .pagination-number {
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 2.5rem;
  height: 2.5rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--oracle-dark);
  background: var(--oracle-light);
  border-radius: 0.375rem;
  transition: all var(--transition-fast);
}
.pagination .pagination-number:hover:not(.current) {
  background: var(--oracle-red);
  color: var(--oracle-white);
}
.pagination .pagination-number.current {
  background: var(--oracle-red);
  color: var(--oracle-white);
}
.pagination .pagination-ellipsis {
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 2.5rem;
  height: 2.5rem;
  color: var(--oracle-gray);
}
.archive-container {
  padding: calc(var(--navbar-height) + 3rem) 0 4rem;
}
.archive-container .page-header {
  text-align: center;
  margin-bottom: 3rem;
}
.archive-container .page-title {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--oracle-black);
  margin-bottom: 0.5rem;
}
.archive-container .page-title i {
  color: var(--oracle-red);
  margin-right: 0.75rem;
}
.archive-container .page-stats {
  font-size: 1.125rem;
  color: var(--oracle-gray);
}
.archive-container .archive-timeline {
  max-width: 800px;
  margin: 0 auto;
}
.archive-container .timeline-year {
  margin: 2rem 0 1rem;
}
.archive-container .timeline-year .year-badge {
  display: inline-block;
  padding: 0.5rem 1.5rem;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--oracle-white);
  background: var(--oracle-red);
  border-radius: 9999px;
}
.archive-container .timeline-item {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  padding: 1rem 0;
  border-bottom: 1px solid var(--oracle-border);
}
.archive-container .timeline-item .item-date {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--oracle-gray);
  min-width: 60px;
}
.archive-container .timeline-item .item-title {
  flex: 1;
  font-size: 1rem;
  font-weight: 600;
  color: var(--oracle-dark);
}
.archive-container .timeline-item .item-title:hover {
  color: var(--oracle-red);
}
.archive-container .timeline-item .item-category {
  font-size: 0.75rem;
  color: var(--oracle-red);
  background: rgba(199,70,52,0.1);
  padding: 0.25rem 0.75rem;
  border-radius: 0.25rem;
}
.tags-container {
  padding: calc(var(--navbar-height) + 3rem) 0 4rem;
}
.tags-container .page-header {
  text-align: center;
  margin-bottom: 3rem;
}
.tags-container .page-title {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--oracle-black);
  margin-bottom: 0.5rem;
}
.tags-container .page-title i {
  color: var(--oracle-red);
  margin-right: 0.75rem;
}
.tags-container .page-stats {
  font-size: 1.125rem;
  color: var(--oracle-gray);
}
.tags-container .tags-cloud {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem;
}
.tags-container .tag-item {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.25rem;
  font-weight: 600;
  color: var(--oracle-dark);
  background: var(--oracle-light);
  border-radius: 0.5rem;
  transition: all var(--transition-fast);
}
.tags-container .tag-item:hover {
  background: var(--oracle-red);
  color: var(--oracle-white);
  transform: translateY(-2px);
}
.tags-container .tag-item .tag-count {
  font-size: 0.75rem;
  padding: 0.125rem 0.5rem;
  background: rgba(0,0,0,0.1);
  border-radius: 9999px;
}
.category-container,
.tag-container {
  padding: calc(var(--navbar-height) + 3rem) 0 4rem;
}
.category-container .page-header,
.tag-container .page-header {
  text-align: center;
  margin-bottom: 3rem;
}
.category-container .page-title,
.tag-container .page-title {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--oracle-black);
  margin-bottom: 0.5rem;
}
.category-container .page-title i,
.tag-container .page-title i {
  color: var(--oracle-red);
  margin-right: 0.75rem;
}
.category-container .page-stats,
.tag-container .page-stats {
  font-size: 1.125rem;
  color: var(--oracle-gray);
}
.category-container .posts-grid,
.tag-container .posts-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  max-width: 1200px;
  margin: 0 auto;
}
@media (max-width: 1024px) {
  .category-container .posts-grid,
  .tag-container .posts-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 640px) {
  .category-container .posts-grid,
  .tag-container .posts-grid {
    grid-template-columns: 1fr;
  }
}
.categories-container {
  padding: calc(var(--navbar-height) + 3rem) 0 4rem;
}
.categories-container .page-header {
  text-align: center;
  margin-bottom: 3rem;
}
.categories-container .page-title {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--oracle-black);
  margin-bottom: 0.5rem;
}
.categories-container .page-title i {
  color: var(--oracle-red);
  margin-right: 0.75rem;
}
.categories-container .category-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  max-width: 1200px;
  margin: 0 auto;
}
.categories-container .category-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 1.5rem 1rem;
  background: #fff;
  border-radius: 1rem;
  border: 1px solid var(--oracle-border);
  text-decoration: none;
  transition: all var(--transition-fast);
}
.categories-container .category-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 25px rgba(0,0,0,0.1);
  border-color: var(--oracle-red);
}
.categories-container .category-card:hover .category-icon {
  background: var(--oracle-red);
  color: #fff;
}
.categories-container .category-icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--oracle-light);
  border-radius: 50%;
  font-size: 1.5rem;
  color: var(--oracle-red);
  margin-bottom: 1rem;
  transition: all var(--transition-fast);
}
.categories-container .category-info {
  text-align: center;
}
.categories-container .category-name {
  font-size: 1rem;
  font-weight: 700;
  color: var(--oracle-dark);
  margin-bottom: 0.25rem;
}
.categories-container .category-count {
  font-size: 0.875rem;
  color: var(--oracle-gray);
}
@media (max-width: 1024px) {
  .categories-container .category-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}
@media (max-width: 768px) {
  .categories-container .category-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
  }
}
@media (max-width: 480px) {
  .categories-container .category-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .categories-container .category-card {
    padding: 1rem 0.75rem;
  }
  .categories-container .category-icon {
    width: 48px;
    height: 48px;
    font-size: 1.25rem;
  }
  .categories-container .category-name {
    font-size: 0.875rem;
    font-size: 1rem;
    color: var(--oracle-gray);
    margin-bottom: 1rem;
  }
  .categories-container .category-posts {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
  }
  .categories-container .category-posts .post-item {
    padding: 1rem;
    background: var(--oracle-light);
    border-radius: 0.5rem;
    transition: all var(--transition-fast);
  }
  .categories-container .category-posts .post-item:hover {
    background: var(--oracle-white);
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    transform: translateY(-2px);
  }
  .categories-container .category-posts .post-item .post-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--oracle-dark);
    margin-bottom: 0.5rem;
  }
  .categories-container .category-posts .post-item .post-title:hover {
    color: var(--oracle-red);
  }
  .categories-container .category-posts .post-item .post-date {
    font-size: 0.875rem;
    color: var(--oracle-gray);
  }
}
.error-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--navbar-height) 1.5rem 2rem;
}
.error-page .error-content {
  text-align: center;
}
.error-page .error-code {
  font-size: 8rem;
  font-weight: 800;
  color: var(--oracle-red);
  line-height: 1;
  margin-bottom: 1rem;
}
.error-page .error-title {
  font-size: 2rem;
  font-weight: 700;
  color: var(--oracle-black);
  margin-bottom: 1rem;
}
.error-page .error-message {
  font-size: 1.125rem;
  color: var(--oracle-gray);
  margin-bottom: 2rem;
}
.error-page .error-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 1rem 2rem;
  font-size: 1rem;
  font-weight: 600;
  color: var(--oracle-white);
  background: var(--oracle-red);
  border-radius: 0.375rem;
  transition: all var(--transition-fast);
}
.error-page .error-btn:hover {
  background: #b33f2f;
  transform: translateY(-2px);
}
.search-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0,0,0,0.8);
  z-index: 2000;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding-top: 10vh;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}
.search-overlay.active {
  opacity: 1;
  visibility: visible;
}
.search-overlay .search-container {
  width: 90%;
  max-width: 700px;
  background: var(--oracle-white);
  border-radius: 0.5rem;
  overflow: hidden;
}
.search-overlay .search-header {
  display: flex;
  align-items: center;
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--oracle-border);
}
.search-overlay .search-input {
  flex: 1;
  border: none;
  font-size: 1.125rem;
  padding: 0.5rem 0;
  outline: none;
  background: transparent;
}
.search-overlay .search-close {
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--oracle-gray);
  cursor: pointer;
  padding: 0.5rem;
  transition: color var(--transition-fast);
}
.search-overlay .search-close:hover {
  color: var(--oracle-red);
}
.search-overlay .search-results {
  max-height: 60vh;
  overflow-y: auto;
}
.search-overlay .search-result-item {
  display: block;
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--oracle-border);
  transition: background var(--transition-fast);
}
.search-overlay .search-result-item:hover {
  background: var(--oracle-light);
}
.search-overlay .search-result-item h4 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--oracle-black);
  margin-bottom: 0.25rem;
}
.search-overlay .search-result-item p {
  font-size: 0.875rem;
  color: var(--oracle-gray);
  line-height: 1.5;
}
.search-overlay .search-no-results {
  padding: 2rem;
  text-align: center;
  color: var(--oracle-gray);
}
.side-tools {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  z-index: 100;
}
.side-tools .tool-btn {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--oracle-white);
  border: 1px solid var(--oracle-border);
  border-radius: 50%;
  color: var(--oracle-gray);
  font-size: 1.125rem;
  cursor: pointer;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-fast);
}
.side-tools .tool-btn:hover {
  background: var(--oracle-red);
  border-color: var(--oracle-red);
  color: var(--oracle-white);
  transform: translateY(-2px);
}
.side-tools .tool-btn.scroll-top {
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
}
.side-tools .tool-btn.scroll-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
@media (max-width: 1024px) {
  .hero-section .hero-wrapper {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 3rem;
  }
  .hero-section .hero-wrapper.split {
    grid-template-columns: 1fr;
  }
  .hero-section .hero-content {
    max-width: 100%;
    order: 2;
  }
  .hero-section .hero-image {
    order: 1;
  }
  .hero-section .hero-buttons {
    justify-content: center;
  }
  .hero-section .hero-social {
    justify-content: center;
  }
  .stats-section .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .posts-section .posts-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .expertise-section .expertise-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .certs-section .certs-wrapper {
    grid-template-columns: 1fr;
  }
  .post-container .post-wrapper {
    grid-template-columns: 1fr;
  }
  .toc-sidebar {
    display: none;
  }
}
@media (max-width: 768px) {
  :root {
    --section-padding: 3rem;
  }
  .navbar .navbar-menu {
    display: none;
  }
  .navbar .navbar-toggle {
    display: flex;
  }
  .hero-section .hero-title {
    font-size: 2.5rem;
  }
  .hero-section .hero-subtitle {
    font-size: 1.25rem;
  }
  .hero-section .hero-image .image-wrapper {
    width: 240px;
    height: 240px;
  }
  .stats-section .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
  }
  .stats-section .stat-value {
    font-size: 2rem;
  }
  .posts-section .section-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
  }
  .posts-section .posts-grid {
    grid-template-columns: 1fr;
  }
  .expertise-section .expertise-grid {
    grid-template-columns: 1fr;
  }
  .certs-section .certs-grid {
    grid-template-columns: 1fr;
  }
  .footer .footer-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  .footer .footer-bottom {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }
  .post-container .post-title {
    font-size: 1.75rem;
  }
  .post-nav {
    grid-template-columns: 1fr;
  }
  .archive-container .timeline-item {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
  }
}
[data-aos] {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
[data-aos].aos-animate {
  opacity: 1;
  transform: translateY(0);
}
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}
.about-page {
  min-height: 100vh;
}
.about-hero-section {
  position: relative;
  min-height: 100vh;
  padding-top: var(--navbar-height);
  display: flex;
  align-items: center;
  overflow: hidden;
}
.about-hero-section .hero-background {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
}
.about-hero-section .hero-background .bg-gradient {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, #fff 0%, #fff5f3 50%, #ffeee8 100%);
}
.about-hero-section .hero-background .bg-pattern {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: radial-gradient(circle at 25% 25%, rgba(199,70,52,0.03) 0%, transparent 50%), radial-gradient(circle at 75% 75%, rgba(199,70,52,0.05) 0%, transparent 50%);
  background-size: 60px 60px;
}
.about-hero-section .hero-background .bg-glow {
  position: absolute;
  top: -50%;
  right: -20%;
  width: 80%;
  height: 150%;
  background: radial-gradient(ellipse, rgba(199,70,52,0.08) 0%, transparent 70%);
  pointer-events: none;
}
.about-hero-section .container {
  position: relative;
  z-index: 1;
  width: 100%;
}
.about-hero-wrapper {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
  padding: 3rem 0;
}
.about-hero-content {
  max-width: 600px;
}
.about-hero-section .about-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1.25rem;
  background: linear-gradient(135deg, #c74634 0%, #a33d2d 100%);
  color: #fff;
  border-radius: 9999px;
  font-weight: 600;
  font-size: 0.875rem;
  margin-bottom: 1.5rem;
  box-shadow: 0 4px 15px rgba(199,70,52,0.3);
}
.about-hero-section .about-badge i {
  font-size: 1rem;
}
.about-hero-section .about-hero-title {
  font-size: 3.5rem;
  font-weight: 800;
  line-height: 1.1;
  color: var(--oracle-black);
  margin-bottom: 0.75rem;
  letter-spacing: -0.02em;
}
.about-hero-section .about-hero-subtitle {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--oracle-red);
  margin-bottom: 1.25rem;
}
.about-hero-section .about-hero-description {
  font-size: 1.125rem;
  line-height: 1.8;
  color: var(--oracle-gray);
  margin-bottom: 2rem;
}
.about-hero-section .about-hero-social {
  display: flex;
  gap: 1rem;
}
.about-hero-section .about-hero-social .social-link {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--oracle-white);
  color: var(--oracle-dark);
  font-size: 1.25rem;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-fast);
  border: 2px solid var(--oracle-border);
}
.about-hero-section .about-hero-social .social-link:hover {
  background: var(--oracle-red);
  color: var(--oracle-white);
  border-color: var(--oracle-red);
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}
.about-hero-image {
  position: relative;
  display: flex;
  justify-content: center;
}
.about-hero-image .image-wrapper {
  position: relative;
  width: 350px;
  height: 350px;
  border-radius: 30% 70% 70% 30%/30% 30% 70% 70%;
  overflow: hidden;
  border: 4px solid rgba(199,70,52,0.3);
  box-shadow: var(--shadow-xl);
  animation: morphBorder 8s ease-in-out infinite;
}
.about-hero-image .image-wrapper img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.about-hero-image .image-accent {
  position: absolute;
  top: -20px;
  right: -20px;
  width: 100px;
  height: 100px;
  background: linear-gradient(135deg, var(--oracle-red), #f90);
  border-radius: 50%;
  opacity: 0.2;
  animation: pulse 4s ease-in-out infinite;
  z-index: -1;
}
.about-hero-section .scroll-indicator {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
}
.about-hero-section .scroll-indicator .scroll-mouse {
  width: 26px;
  height: 40px;
  border: 2px solid var(--oracle-border);
  border-radius: 13px;
  display: flex;
  justify-content: center;
  padding-top: 8px;
}
.about-hero-section .scroll-indicator .scroll-wheel {
  width: 4px;
  height: 8px;
  background: var(--oracle-red);
  border-radius: 2px;
  animation: scrollWheel 1.5s ease-in-out infinite;
}
.about-page .stats-section {
  background: linear-gradient(135deg, #1a1a1a 0%, #2d2d2d 100%);
  padding: 4rem 0;
}
.about-page .stats-section .stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
}
.about-page .stats-section .stat-item {
  text-align: center;
  padding: 1.5rem;
  border-radius: 1rem;
  background: rgba(255,255,255,0.05);
  transition: all var(--transition-fast);
  border: 1px solid rgba(255,255,255,0.1);
}
.about-page .stats-section .stat-item:hover {
  background: rgba(255,255,255,0.1);
  transform: translateY(-5px);
}
.about-page .stats-section .stat-icon {
  font-size: 2rem;
  color: var(--oracle-red);
  margin-bottom: 1rem;
}
.about-page .stats-section .stat-value {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--oracle-white);
  line-height: 1;
  margin-bottom: 0.5rem;
}
.about-page .stats-section .stat-label {
  font-size: 0.875rem;
  font-weight: 600;
  color: rgba(255,255,255,0.6);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.about-page .about-content-section {
  padding: 6rem 0;
  background: var(--oracle-white);
}
.about-page .about-content-section .about-content {
  max-width: 800px;
  margin: 0 auto;
  padding: 3rem;
  background: var(--oracle-white);
  border-radius: 1.5rem;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--oracle-border);
}
.about-page .about-content-section .about-content h2 {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--oracle-black);
  margin: 2.5rem 0 1.25rem;
  padding-bottom: 0.75rem;
  border-bottom: 3px solid var(--oracle-red);
}
.about-page .about-content-section .about-content h2:first-child {
  margin-top: 0;
}
.about-page .about-content-section .about-content p {
  font-size: 1rem;
  line-height: 1.8;
  color: var(--oracle-dark);
  margin-bottom: 1.25rem;
}
.about-page .about-content-section .about-content img {
  border-radius: 0.75rem;
  margin: 1.5rem 0;
  box-shadow: var(--shadow-md);
}
.about-page .about-content-section .about-content ul,
.about-page .about-content-section .about-content ol {
  margin-bottom: 1.25rem;
  padding-left: 1.5rem;
}
.about-page .about-content-section .about-content li {
  font-size: 1rem;
  line-height: 1.7;
  color: var(--oracle-dark);
  margin-bottom: 0.5rem;
}
.about-page .about-content-section .about-content strong {
  color: var(--oracle-red);
  font-weight: 700;
}
.about-page .about-content-section .about-content a {
  color: var(--oracle-red);
  text-decoration: underline;
  text-underline-offset: 0.2em;
}
.about-page .about-content-section .about-content a:hover {
  color: #b33f2f;
}
.about-page .section-header {
  text-align: center;
  margin-bottom: 3rem;
}
.about-page .section-title {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 2rem;
  font-weight: 700;
  color: var(--oracle-black);
  margin-bottom: 0.75rem;
}
.about-page .section-title i {
  color: var(--oracle-red);
}
.about-page .section-subtitle {
  font-size: 1.125rem;
  color: var(--oracle-gray);
}
.about-page .expertise-section {
  padding: 6rem 0;
  background: var(--oracle-white);
}
.about-page .expertise-section .section-header {
  margin-bottom: 4rem;
}
.about-page .expertise-section .expertise-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
}
.about-page .expertise-section .expertise-card {
  text-align: center;
  padding: 2rem 1.5rem;
  background: var(--oracle-white);
  border-radius: 1rem;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-normal);
  border: 1px solid var(--oracle-border);
}
.about-page .expertise-section .expertise-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
  border-color: var(--oracle-red);
}
.about-page .expertise-section .expertise-card:hover .expertise-icon {
  background: var(--oracle-red);
  color: var(--oracle-white);
  transform: scale(1.1);
}
.about-page .expertise-section .expertise-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 72px;
  height: 72px;
  border-radius: 1rem;
  background: rgba(199,70,52,0.1);
  color: var(--oracle-red);
  font-size: 1.75rem;
  margin-bottom: 1.5rem;
  transition: all var(--transition-normal);
}
.about-page .expertise-section .expertise-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--oracle-black);
  margin-bottom: 0.75rem;
}
.about-page .expertise-section .expertise-description {
  font-size: 0.875rem;
  line-height: 1.6;
  color: var(--oracle-gray);
}
.about-page .certs-section {
  padding: 6rem 0;
  background: linear-gradient(180deg, var(--oracle-light) 0%, var(--oracle-white) 100%);
}
.about-page .certs-section .certs-wrapper {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 4rem;
  align-items: center;
}
.about-page .certs-section .certs-content .section-title {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 2rem;
  font-weight: 700;
  color: var(--oracle-black);
  margin-bottom: 0.5rem;
}
.about-page .certs-section .certs-content .section-title i {
  color: var(--oracle-red);
}
.about-page .certs-section .certs-content .section-subtitle {
  font-size: 1.125rem;
  color: var(--oracle-gray);
  margin-bottom: 2rem;
}
.about-page .certs-section .certs-features {
  list-style: none;
}
.about-page .certs-section .certs-features li {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1rem;
  font-size: 1rem;
  color: var(--oracle-dark);
}
.about-page .certs-section .certs-features li i {
  color: var(--oracle-red);
  font-size: 1rem;
}
.about-page .certs-section .certs-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}
.about-page .certs-section .cert-card {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1.25rem;
  background: var(--oracle-white);
  border: 2px solid var(--oracle-border);
  border-radius: 0.75rem;
  transition: all var(--transition-fast);
}
.about-page .certs-section .cert-card:hover {
  border-color: var(--oracle-red);
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}
.about-page .certs-section .cert-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 0.5rem;
  font-size: 1.25rem;
  flex-shrink: 0;
}
.about-page .certs-section .cert-icon.oracle {
  background: linear-gradient(135deg, #c74634 0%, #f56500 100%);
  color: #fff;
}
.about-page .certs-section .cert-icon.mysql {
  background: linear-gradient(135deg, #00758f 0%, #00a4e4 100%);
  color: #fff;
}
.about-page .certs-section .cert-icon.tidb {
  background: linear-gradient(135deg, #2a2a2a 0%, #606060 100%);
  color: #fff;
}
.about-page .certs-section .cert-info {
  flex: 1;
}
.about-page .certs-section .cert-info .cert-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.25rem;
}
.about-page .certs-section .cert-info .cert-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--oracle-black);
}
.about-page .certs-section .cert-info .cert-level {
  padding: 0.125rem 0.5rem;
  font-size: 0.625rem;
  font-weight: 700;
  color: var(--oracle-white);
  background: var(--oracle-red);
  border-radius: 0.25rem;
}
.about-page .certs-section .cert-info .cert-description {
  font-size: 0.75rem;
  line-height: 1.5;
  color: var(--oracle-gray);
  margin: 0;
}
.about-page .hobbies-section {
  padding: 6rem 0;
  background: var(--oracle-white);
}
.about-page .hobbies-section .hobby-list {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
}
.about-page .hobbies-section .hobby-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 2rem;
  background: var(--oracle-white);
  border-radius: 1rem;
  border: 2px solid var(--oracle-border);
  transition: all var(--transition-normal);
}
.about-page .hobbies-section .hobby-item:hover {
  border-color: var(--oracle-red);
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}
.about-page .hobbies-section .hobby-item:hover .hobby-icon {
  background: var(--oracle-red);
  color: #fff;
  transform: rotateY(360deg);
}
.about-page .hobbies-section .hobby-icon {
  width: 80px;
  height: 80px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--oracle-light);
  border-radius: 50%;
  font-size: 2rem;
  color: var(--oracle-red);
  margin-bottom: 1.25rem;
  transition: all var(--transition-slow);
}
.about-page .hobbies-section .hobby-info h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--oracle-black);
  margin-bottom: 0.5rem;
}
.about-page .hobbies-section .hobby-info p {
  font-size: 0.875rem;
  color: var(--oracle-gray);
  margin: 0;
}
.about-page .contact-section {
  padding: 6rem 0;
  background: linear-gradient(135deg, #1a1a1a 0%, #2d2d2d 100%);
}
.about-page .contact-section .contact-wrapper {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}
.about-page .contact-section .contact-info .section-title {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 2rem;
  font-weight: 700;
  color: var(--oracle-white);
  margin-bottom: 0.5rem;
}
.about-page .contact-section .contact-info .section-title i {
  color: var(--oracle-red);
}
.about-page .contact-section .contact-info .contact-subtitle {
  font-size: 1.125rem;
  color: rgba(255,255,255,0.6);
  margin-bottom: 2rem;
}
.about-page .contact-section .contact-info .contact-details {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.about-page .contact-section .contact-info .contact-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  color: rgba(255,255,255,0.8);
  font-size: 1rem;
}
.about-page .contact-section .contact-info .contact-item i {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(199,70,52,0.2);
  color: var(--oracle-red);
  border-radius: 0.5rem;
}
.about-page .contact-section .contact-wechat {
  display: flex;
  justify-content: center;
}
.about-page .contact-section .contact-wechat .wechat-card {
  padding: 2rem;
  background: var(--oracle-white);
  border-radius: 1rem;
  box-shadow: var(--shadow-xl);
  text-align: center;
}
.about-page .contact-section .contact-wechat .wechat-card img {
  border-radius: 0.5rem;
  margin-bottom: 1rem;
}
.about-page .contact-section .contact-wechat .wechat-card .wechat-label {
  font-size: 0.875rem;
  color: var(--oracle-gray);
  margin-bottom: 0.25rem;
}
.about-page .contact-section .contact-wechat .wechat-card .wechat-id {
  font-size: 1rem;
  font-weight: 700;
  color: var(--oracle-black);
  margin: 0;
}
.about-page .donation-section {
  padding: 6rem 0;
  background: var(--oracle-white);
}
.about-page .donation-section .donation-wrapper {
  max-width: 600px;
  margin: 0 auto;
  text-align: center;
  padding: 3rem;
  background: linear-gradient(135deg, #fff5f5 0%, #ffebe8 100%);
  border-radius: 1.5rem;
  border: 2px solid #ffe5e0;
}
.about-page .donation-section .donation-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--oracle-red);
  color: #fff;
  border-radius: 50%;
  font-size: 2rem;
}
.about-page .donation-section .donation-title {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--oracle-black);
  margin-bottom: 0.5rem;
}
.about-page .donation-section .donation-subtitle {
  font-size: 1rem;
  color: var(--oracle-gray);
  margin-bottom: 2rem;
}
.about-page .donation-section .donation-list {
  list-style: none;
  padding: 0;
  margin-bottom: 2rem;
}
.about-page .donation-section .donation-list .donation-item {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 1rem;
  padding: 0.75rem 0;
  border-bottom: 1px solid rgba(199,70,52,0.1);
}
.about-page .donation-section .donation-list .donation-item:last-child {
  border-bottom: none;
}
.about-page .donation-section .donation-list .donation-item .donation-date {
  font-size: 0.875rem;
  color: var(--oracle-gray);
  min-width: 80px;
}
.about-page .donation-section .donation-list .donation-item .donation-amount {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--oracle-red);
}
.about-page .donation-section .donation-list .donation-item .donation-name {
  font-size: 0.875rem;
  color: var(--oracle-gray);
}
.about-page .donation-section .donation-thanks {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--oracle-red);
  margin: 0;
}
@media (max-width: 1024px) {
  .about-hero-wrapper {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 3rem;
  }
  .about-hero-content {
    max-width: 100%;
  }
  .about-hero-title {
    font-size: 2.5rem;
  }
  .about-hero-image {
    order: -1;
  }
  .about-hero-image .image-wrapper {
    width: 280px;
    height: 280px;
  }
  .about-page .stats-section .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .about-page .expertise-section .expertise-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .about-page .hobbies-section .hobby-list {
    grid-template-columns: repeat(2, 1fr);
  }
  .about-page .contact-section .contact-wrapper {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .about-page .contact-section .contact-wrapper .contact-details {
    align-items: center;
  }
}
@media (max-width: 768px) {
  .about-hero-title {
    font-size: 2rem;
  }
  .about-hero-subtitle {
    font-size: 1.25rem;
  }
  .about-page .section-title {
    font-size: 1.5rem;
  }
  .about-page .certs-section .certs-wrapper {
    grid-template-columns: 1fr;
  }
  .about-page .certs-section .certs-grid {
    grid-template-columns: 1fr;
  }
  .about-page .expertise-section .expertise-grid {
    grid-template-columns: 1fr;
  }
  .about-page .hobbies-section .hobby-list {
    grid-template-columns: 1fr;
  }
  .about-page .stats-section .stats-grid {
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
  }
  .about-page .stat-value {
    font-size: 2rem;
  }
}
.about-container {
  padding: calc(var(--navbar-height) + 3rem) 0 4rem;
  min-height: 100vh;
}
.about-hero {
  text-align: center;
  margin-bottom: 3rem;
  padding: 2rem 0;
}
.about-avatar {
  width: 150px;
  height: 150px;
  margin: 0 auto 1.5rem;
  border-radius: 50%;
  overflow: hidden;
  border: 4px solid var(--oracle-red);
  box-shadow: 0 8px 30px rgba(199,70,52,0.3);
}
.about-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.about-title {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--oracle-black);
  margin-bottom: 0.5rem;
}
.about-subtitle {
  font-size: 1.25rem;
  color: var(--oracle-gray);
  margin-bottom: 1rem;
}
.about-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1.25rem;
  background: linear-gradient(135deg, #c74634 0%, #a33d2d 100%);
  color: #fff;
  border-radius: 9999px;
  font-weight: 600;
  font-size: 0.875rem;
}
.about-badge i {
  font-size: 1rem;
}
.about-stats {
  display: flex;
  justify-content: center;
  gap: 3rem;
  margin-bottom: 3rem;
  padding: 2rem;
  background: var(--oracle-light);
  border-radius: 1rem;
}
.about-stats .stat-item {
  text-align: center;
}
.about-stats .stat-number {
  display: block;
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--oracle-red);
  line-height: 1;
}
.about-stats .stat-label {
  font-size: 0.875rem;
  color: var(--oracle-gray);
  margin-top: 0.5rem;
  display: block;
}
.about-section {
  margin-bottom: 3rem;
}
.section-title {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--oracle-black);
  margin-bottom: 1.5rem;
  padding-bottom: 0.75rem;
  border-bottom: 3px solid var(--oracle-red);
}
.section-title i {
  color: var(--oracle-red);
}
.cert-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
}
.cert-card {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.5rem;
  background: #fff;
  border-radius: 1rem;
  box-shadow: 0 4px 20px rgba(0,0,0,0.08);
  transition: all var(--transition-fast);
  border: 1px solid var(--oracle-border);
}
.cert-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 30px rgba(0,0,0,0.12);
}
.cert-icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 0.75rem;
  font-size: 1.5rem;
}
.cert-icon.oracle {
  background: linear-gradient(135deg, #c74634 0%, #f56500 100%);
  color: #fff;
}
.cert-icon.mysql {
  background: linear-gradient(135deg, #00758f 0%, #00a4e4 100%);
  color: #fff;
}
.cert-icon.tidb {
  background: linear-gradient(135deg, #2a2a2a 0%, #606060 100%);
  color: #fff;
}
.cert-info h3 {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--oracle-black);
  margin-bottom: 0.25rem;
}
.cert-info p {
  font-size: 0.875rem;
  color: var(--oracle-gray);
  margin: 0;
}
.expertise-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.5rem;
}
.expertise-card {
  padding: 1.5rem;
  background: #fff;
  border-radius: 1rem;
  text-align: center;
  border: 1px solid var(--oracle-border);
  transition: all var(--transition-fast);
}
.expertise-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 30px rgba(0,0,0,0.12);
  border-color: var(--oracle-red);
}
.expertise-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--oracle-light);
  border-radius: 50%;
  font-size: 1.75rem;
  color: var(--oracle-red);
}
.expertise-icon h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--oracle-black);
  margin-bottom: 0.5rem;
}
.expertise-icon p {
  font-size: 0.875rem;
  color: var(--oracle-gray);
  line-height: 1.6;
  margin: 0;
}
.hobby-list {
  display: flex;
  justify-content: center;
  gap: 2rem;
  flex-wrap: wrap;
}
.hobby-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem 1.5rem;
  background: #fff;
  border-radius: 9999px;
  border: 2px solid var(--oracle-border);
  font-weight: 600;
  color: var(--oracle-dark);
  transition: all var(--transition-fast);
}
.hobby-item i {
  color: var(--oracle-red);
  font-size: 1.25rem;
}
.hobby-item:hover {
  border-color: var(--oracle-red);
  background: var(--oracle-red);
  color: #fff;
}
.hobby-item:hover i {
  color: #fff;
}
.contact-card {
  text-align: center;
  padding: 2rem;
  background: #fff;
  border-radius: 1rem;
  box-shadow: 0 4px 20px rgba(0,0,0,0.08);
}
.contact-wechat {
  margin-bottom: 1.5rem;
}
.contact-wechat img {
  border-radius: 0.5rem;
  box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}
.contact-text {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--oracle-dark);
  margin: 0;
}
.donation-card {
  text-align: center;
  padding: 2rem;
  background: linear-gradient(135deg, #fff5f5 0%, #ffebe8 100%);
  border-radius: 1rem;
  border: 2px solid #ffe5e0;
}
.donation-thanks {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--oracle-red);
  margin-bottom: 1rem;
}
.donation-list {
  list-style: none;
  padding: 0;
  margin: 0 0 1.5rem 0;
}
.donation-list li {
  padding: 0.5rem 0;
  color: var(--oracle-gray);
  font-size: 0.9375rem;
}
@media (max-width: 768px) {
  .about-stats {
    flex-direction: column;
    gap: 1.5rem;
  }
  .about-title {
    font-size: 2rem;
  }
  .section-title {
    font-size: 1.5rem;
  }
  .hobby-list {
    flex-direction: column;
    align-items: center;
  }
}
.about-page-container {
  padding: calc(var(--navbar-height) + 3rem) 0 4rem;
  min-height: 100vh;
}
.about-page-container .page-header {
  text-align: center;
  margin-bottom: 3rem;
}
.about-page-container .page-title {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--oracle-black);
  margin-bottom: 0.5rem;
}
.about-page-container .page-body {
  max-width: 800px;
  margin: 0 auto;
  background: var(--oracle-white);
  padding: 3rem;
  border-radius: 1rem;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--oracle-border);
}
.about-page-container .page-body h1,
.about-page-container .page-body h2,
.about-page-container .page-body h3,
.about-page-container .page-body h4,
.about-page-container .page-body h5,
.about-page-container .page-body h6 {
  font-weight: 700;
  color: var(--oracle-black);
  margin: 2rem 0 1rem;
}
.about-page-container .page-body h2 {
  font-size: 1.75rem;
  padding-bottom: 0.5rem;
  border-bottom: 3px solid var(--oracle-red);
}
.about-page-container .page-body h3 {
  font-size: 1.5rem;
}
.about-page-container .page-body p {
  font-size: 1rem;
  line-height: 1.8;
  color: var(--oracle-dark);
  margin-bottom: 1rem;
}
.about-page-container .page-body img {
  max-width: 100%;
  border-radius: 0.75rem;
  margin: 1.5rem 0;
  box-shadow: var(--shadow-md);
}
.about-page-container .page-body ul,
.about-page-container .page-body ol {
  margin-bottom: 1rem;
  padding-left: 1.5rem;
}
.about-page-container .page-body li {
  font-size: 1rem;
  line-height: 1.7;
  color: var(--oracle-dark);
  margin-bottom: 0.5rem;
}
.about-page-container .page-body strong {
  color: var(--oracle-red);
  font-weight: 700;
}
@media (max-width: 768px) {
  .about-page-container .page-body {
    padding: 1.5rem;
  }
  .about-page-container .page-title {
    font-size: 2rem;
  }
}
@-moz-keyframes spin {
  to {
    transform: rotate(360deg);
  }
}
@-webkit-keyframes spin {
  to {
    transform: rotate(360deg);
  }
}
@-o-keyframes spin {
  to {
    transform: rotate(360deg);
  }
}
@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}
@-moz-keyframes scrollWheel {
  0%, 100% {
    transform: translateY(0);
    opacity: 1;
  }
  50% {
    transform: translateY(8px);
    opacity: 0.5;
  }
}
@-webkit-keyframes scrollWheel {
  0%, 100% {
    transform: translateY(0);
    opacity: 1;
  }
  50% {
    transform: translateY(8px);
    opacity: 0.5;
  }
}
@-o-keyframes scrollWheel {
  0%, 100% {
    transform: translateY(0);
    opacity: 1;
  }
  50% {
    transform: translateY(8px);
    opacity: 0.5;
  }
}
@keyframes scrollWheel {
  0%, 100% {
    transform: translateY(0);
    opacity: 1;
  }
  50% {
    transform: translateY(8px);
    opacity: 0.5;
  }
}
@-moz-keyframes morphBorder {
  0%, 100% {
    border-radius: 30% 70% 70% 30%/30% 30% 70% 70%;
  }
  50% {
    border-radius: 70% 30% 30% 70%/70% 70% 30% 30%;
  }
}
@-webkit-keyframes morphBorder {
  0%, 100% {
    border-radius: 30% 70% 70% 30%/30% 30% 70% 70%;
  }
  50% {
    border-radius: 70% 30% 30% 70%/70% 70% 30% 30%;
  }
}
@-o-keyframes morphBorder {
  0%, 100% {
    border-radius: 30% 70% 70% 30%/30% 30% 70% 70%;
  }
  50% {
    border-radius: 70% 30% 30% 70%/70% 70% 30% 30%;
  }
}
@keyframes morphBorder {
  0%, 100% {
    border-radius: 30% 70% 70% 30%/30% 30% 70% 70%;
  }
  50% {
    border-radius: 70% 30% 30% 70%/70% 70% 30% 30%;
  }
}