:root {
  --bg-body: #f9fafc;
  --bg-card: #ffffff;
  --bg-header: #ffffff;
  --bg-footer: #1e2a3a;
  --bg-mobile-menu: #ffffff;
  --bg-search: #f1f4f9;
  --bg-badge: #eef2f6;
  --bg-carousel: #e9ecf0;
  --bg-faq: #ffffff;
  --bg-article: #ffffff;
  --bg-howto: #ffffff;
  --text-primary: #1e2a3a;
  --text-secondary: #4a5c6e;
  --text-muted: #7a8b9c;
  --text-nav: #2c3e50;
  --text-footer: #cbd5e1;
  --text-footer-link: #b0c0d0;
  --text-faq-answer: #4a5c6e;
  --border-color: #eef2f6;
  --border-header: #e9ecf0;
  --border-search: #dce2ea;
  --border-footer: #2d3f4f;
  --accent: #3b7fbd;
  --accent-hover: #1a5c9e;
  --accent-light: #7ab7ff;
  --shadow-card: 0 4px 12px rgba(0, 0, 0, 0.02);
  --shadow-header: 0 2px 10px rgba(0, 0, 0, 0.05);
  --shadow-backtop: 0 4px 12px rgba(0, 0, 0, 0.15);
  --gradient-1: linear-gradient(135deg, #1e2a3a 0%, #2c3e50 100%);
  --gradient-2: linear-gradient(135deg, #2a5f7a 0%, #1e3a4a 100%);
  --gradient-3: linear-gradient(135deg, #3a2e5a 0%, #1e2a3a 100%);
  --radius-card: 16px;
  --radius-faq: 12px;
  --radius-article: 12px;
  --radius-howto: 12px;
  --radius-banner: 20px;
  --radius-footer: 24px;
  --radius-search: 40px;
  --radius-badge: 40px;
  --transition-fast: 0.2s ease;
  --transition-smooth: 0.4s ease;
  --transition-fade: 0.6s ease;
}

body.dark-mode {
  --bg-body: #12181f;
  --bg-card: #1e2a3a;
  --bg-header: #0f1419;
  --bg-footer: #0f1419;
  --bg-mobile-menu: #0f1419;
  --bg-search: #1e2a3a;
  --bg-badge: #1e2a3a;
  --bg-carousel: #1e2a3a;
  --bg-faq: #1e2a3a;
  --bg-article: #1e2a3a;
  --bg-howto: #1e2a3a;
  --text-primary: #e4e8ed;
  --text-secondary: #b0c0d0;
  --text-muted: #7a8b9c;
  --text-nav: #cbd5e1;
  --text-footer: #cbd5e1;
  --text-footer-link: #b0c0d0;
  --text-faq-answer: #b0c0d0;
  --border-color: #2d3f4f;
  --border-header: #2d3f4f;
  --border-search: #2d3f4f;
  --border-footer: #2d3f4f;
  --accent: #7ab7ff;
  --accent-hover: #a0ccff;
  --shadow-card: 0 4px 12px rgba(0, 0, 0, 0.15);
  --shadow-header: 0 2px 10px rgba(0, 0, 0, 0.2);
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', 'Noto Sans', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  background-color: var(--bg-body);
  color: var(--text-primary);
  line-height: 1.6;
  transition: background-color var(--transition-fast), color var(--transition-fast);
  padding-top: 70px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

a {
  color: var(--accent-hover);
  text-decoration: none;
  transition: color var(--transition-fast), opacity var(--transition-fast);
}

a:hover {
  text-decoration: underline;
  opacity: 0.9;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

img[loading="lazy"] {
  background: var(--bg-badge);
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  width: 100%;
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background-color: var(--bg-header);
  box-shadow: var(--shadow-header);
  z-index: 1000;
  border-bottom: 1px solid var(--border-header);
  transition: background-color var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.logo {
  font-weight: 700;
  font-size: 1.5rem;
  letter-spacing: 1px;
  color: var(--text-primary);
  transition: color var(--transition-fast);
  user-select: none;
  white-space: nowrap;
}

.logo span {
  color: var(--accent);
  transition: color var(--transition-fast);
}

.nav-links {
  display: flex;
  gap: 28px;
  align-items: center;
}

.nav-links a {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-nav);
  transition: color var(--transition-fast);
  position: relative;
  white-space: nowrap;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent);
  transition: width var(--transition-fast);
  border-radius: 2px;
}

.nav-links a:hover {
  color: var(--accent-hover);
  text-decoration: none;
}

.nav-links a:hover::after {
  width: 100%;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.search-box {
  display: flex;
  align-items: center;
  background: var(--bg-search);
  border-radius: var(--radius-search);
  padding: 4px 12px;
  border: 1px solid var(--border-search);
  transition: background-color var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.search-box:focus-within {
  box-shadow: 0 0 0 3px rgba(59, 127, 189, 0.15);
  border-color: var(--accent);
}

.search-box input {
  border: none;
  background: transparent;
  padding: 6px 8px;
  font-size: 0.9rem;
  outline: none;
  width: 140px;
  color: inherit;
  transition: width var(--transition-fast);
}

.search-box input::placeholder {
  color: var(--text-muted);
}

.search-box button {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 1rem;
  color: var(--text-muted);
  padding: 4px;
  border-radius: 50%;
  transition: color var(--transition-fast), transform var(--transition-fast);
  line-height: 1;
}

.search-box button:hover {
  color: var(--accent);
  transform: scale(1.1);
}

.theme-toggle,
.menu-toggle {
  background: none;
  border: none;
  font-size: 1.3rem;
  cursor: pointer;
  padding: 6px;
  border-radius: 50%;
  color: var(--text-nav);
  transition: color var(--transition-fast), background-color var(--transition-fast), transform var(--transition-fast);
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
}

.theme-toggle:hover,
.menu-toggle:hover {
  background: var(--bg-search);
  transform: scale(1.05);
}

.menu-toggle {
  display: none;
}

.mobile-menu {
  display: none;
  background: var(--bg-mobile-menu);
  padding: 16px 20px;
  border-bottom: 1px solid var(--border-header);
  transition: background-color var(--transition-fast), border-color var(--transition-fast);
  animation: slideDown 0.3s ease;
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.mobile-menu a {
  display: block;
  padding: 10px 0;
  border-bottom: 1px solid var(--border-color);
  font-weight: 500;
  color: var(--text-nav);
  transition: color var(--transition-fast), padding-left var(--transition-fast);
}

.mobile-menu a:hover {
  color: var(--accent);
  padding-left: 8px;
  text-decoration: none;
}

.mobile-menu a:last-child {
  border-bottom: none;
}

.mobile-menu.active {
  display: block;
}

.back-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  background: var(--bg-footer);
  color: #fff;
  border: none;
  border-radius: 50%;
  width: 48px;
  height: 48px;
  font-size: 1.5rem;
  cursor: pointer;
  box-shadow: var(--shadow-backtop);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 999;
  transition: opacity var(--transition-fast), transform var(--transition-fast), background-color var(--transition-fast);
  line-height: 1;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.back-to-top.show {
  display: flex;
}

.back-to-top:hover {
  transform: translateY(-4px) scale(1.05);
  background: var(--accent);
}

.banner-carousel {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-banner);
  margin: 24px 0 32px;
  background: var(--bg-carousel);
  transition: background-color var(--transition-fast);
  box-shadow: var(--shadow-card);
}

.carousel-inner {
  display: flex;
  transition: transform var(--transition-smooth);
  will-change: transform;
}

.carousel-slide {
  min-width: 100%;
  padding: 48px 32px;
  background: var(--gradient-1);
  color: #ffffff;
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-height: 260px;
  position: relative;
  overflow: hidden;
}

.carousel-slide::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(255,255,255,0.08) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.carousel-slide:nth-child(2) {
  background: var(--gradient-2);
}

.carousel-slide:nth-child(3) {
  background: var(--gradient-3);
}

.carousel-slide h2 {
  font-size: 2rem;
  margin-bottom: 12px;
  font-weight: 600;
  border-left: none;
  padding-left: 0;
  color: #ffffff;
  position: relative;
  z-index: 1;
}

.carousel-slide p {
  font-size: 1.1rem;
  opacity: 0.9;
  max-width: 600px;
  position: relative;
  z-index: 1;
  margin-bottom: 0;
}

.carousel-indicators {
  position: absolute;
  bottom: 16px;
  left: 0;
  right: 0;
  display: flex;
  justify-content: center;
  gap: 10px;
  z-index: 2;
}

.carousel-indicators button {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  border: none;
  background: rgba(255, 255, 255, 0.5);
  cursor: pointer;
  padding: 0;
  transition: background-color var(--transition-fast), transform var(--transition-fast), width var(--transition-fast);
}

.carousel-indicators button.active {
  background: #ffffff;
  transform: scale(1.2);
  width: 24px;
  border-radius: 10px;
}

.carousel-indicators button:hover {
  background: rgba(255, 255, 255, 0.8);
}

.card {
  background: var(--bg-card);
  border-radius: var(--radius-card);
  padding: 24px;
  box-shadow: var(--shadow-card);
  border: 1px solid var(--border-color);
  margin-bottom: 24px;
  transition: background-color var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast), transform var(--transition-fast);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.06);
}

body.dark-mode .card:hover {
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.3);
}

h1 {
  font-size: 2.2rem;
  font-weight: 700;
  margin: 24px 0 16px;
  line-height: 1.3;
  color: var(--text-primary);
  transition: color var(--transition-fast);
}

h2 {
  font-size: 1.7rem;
  font-weight: 600;
  margin: 40px 0 16px;
  color: var(--text-primary);
  border-left: 5px solid var(--accent);
  padding-left: 16px;
  transition: color var(--transition-fast), border-color var(--transition-fast);
  position: relative;
}

h3 {
  font-size: 1.3rem;
  font-weight: 600;
  margin: 28px 0 12px;
  color: var(--text-primary);
  transition: color var(--transition-fast);
}

h4 {
  font-size: 1.1rem;
  font-weight: 600;
  margin: 20px 0 10px;
  color: var(--text-nav);
  transition: color var(--transition-fast);
}

p {
  margin-bottom: 16px;
  color: var(--text-secondary);
  transition: color var(--transition-fast);
}

ul,
ol {
  margin-left: 24px;
  margin-bottom: 16px;
}

li {
  margin-bottom: 8px;
  color: var(--text-secondary);
  transition: color var(--transition-fast);
}

strong {
  color: var(--text-primary);
  font-weight: 600;
}

em {
  color: var(--text-muted);
  font-style: italic;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.stat-number {
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--accent);
  transition: color var(--transition-fast);
}

.faq-item {
  background: var(--bg-faq);
  border-radius: var(--radius-faq);
  padding: 16px 20px;
  margin-bottom: 12px;
  border: 1px solid var(--border-color);
  cursor: pointer;
  transition: background-color var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast), transform var(--transition-fast);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.faq-item:hover {
  border-color: var(--accent);
  box-shadow: 0 4px 12px rgba(59, 127, 189, 0.08);
}

.faq-item.active {
  border-color: var(--accent);
  box-shadow: 0 4px 16px rgba(59, 127, 189, 0.12);
}

.faq-question {
  font-weight: 600;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--text-primary);
  transition: color var(--transition-fast);
  gap: 12px;
}

.faq-question span {
  font-size: 0.8rem;
  transition: transform var(--transition-fast);
  color: var(--text-muted);
  flex-shrink: 0;
}

.faq-item.active .faq-question span {
  transform: rotate(180deg);
}

.faq-answer {
  display: none;
  margin-top: 12px;
  color: var(--text-faq-answer);
  line-height: 1.7;
  transition: color var(--transition-fast);
  animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(-6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.faq-item.active .faq-answer {
  display: block;
}

.article-item {
  background: var(--bg-article);
  border-radius: var(--radius-article);
  padding: 20px;
  border: 1px solid var(--border-color);
  margin-bottom: 16px;
  transition: background-color var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast), transform var(--transition-fast);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.article-item:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.04);
  border-color: var(--accent);
}

body.dark-mode .article-item:hover {
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.25);
}

.article-meta {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 8px;
  transition: color var(--transition-fast);
}

.article-title {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text-primary);
  transition: color var(--transition-fast);
}

.article-summary {
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin-bottom: 12px;
  transition: color var(--transition-fast);
}

.read-more {
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--accent);
  transition: color var(--transition-fast), letter-spacing var(--transition-fast);
  display: inline-block;
}

.read-more:hover {
  color: var(--accent-hover);
  letter-spacing: 0.5px;
  text-decoration: none;
}

.breadcrumb {
  font-size: 0.9rem;
  margin: 16px 0 8px;
  color: var(--text-muted);
  transition: color var(--transition-fast);
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 4px;
}

.breadcrumb a {
  color: var(--text-muted);
  transition: color var(--transition-fast);
}

.breadcrumb a:hover {
  color: var(--accent);
  text-decoration: none;
}

.breadcrumb span {
  margin: 0 6px;
}

.howto-step {
  background: var(--bg-howto);
  border-radius: var(--radius-howto);
  padding: 20px;
  margin-bottom: 16px;
  border: 1px solid var(--border-color);
  transition: background-color var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast), transform var(--transition-fast);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.howto-step:hover {
  transform: translateX(4px);
  border-color: var(--accent);
  box-shadow: 0 4px 12px rgba(59, 127, 189, 0.08);
}

.howto-step h3 {
  margin-top: 0;
  display: flex;
  align-items: center;
  gap: 8px;
}

.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--accent);
  color: #fff;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  text-align: center;
  line-height: 28px;
  font-weight: 600;
  margin-right: 10px;
  font-size: 0.85rem;
  flex-shrink: 0;
  transition: background-color var(--transition-fast), transform var(--transition-fast);
}

.howto-step:hover .step-number {
  transform: scale(1.1);
}

.badge {
  display: inline-block;
  background: var(--bg-badge);
  padding: 4px 12px;
  border-radius: var(--radius-badge);
  font-size: 0.8rem;
  margin-right: 8px;
  margin-bottom: 8px;
  color: var(--text-secondary);
  transition: background-color var(--transition-fast), color var(--transition-fast), transform var(--transition-fast);
  border: 1px solid var(--border-color);
}

.badge:hover {
  transform: translateY(-2px);
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

.footer {
  background: var(--bg-footer);
  color: var(--text-footer);
  padding: 48px 0 24px;
  margin-top: 60px;
  border-radius: var(--radius-footer) var(--radius-footer) 0 0;
  transition: background-color var(--transition-fast), color var(--transition-fast);
  position: relative;
  overflow: hidden;
}

.footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  opacity: 0.3;
}

.footer a {
  color: var(--text-footer-link);
  transition: color var(--transition-fast), padding-left var(--transition-fast);
}

.footer a:hover {
  color: #ffffff;
  text-decoration: none;
  padding-left: 4px;
}

.footer h4 {
  color: #ffffff;
  margin-bottom: 16px;
  font-size: 1.05rem;
  transition: color var(--transition-fast);
}

.footer p {
  color: var(--text-footer);
  font-size: 0.9rem;
  margin-bottom: 8px;
  transition: color var(--transition-fast);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}

.footer-bottom {
  border-top: 1px solid var(--border-footer);
  margin-top: 32px;
  padding-top: 24px;
  text-align: center;
  font-size: 0.9rem;
  transition: border-color var(--transition-fast);
}

.footer-bottom p {
  margin-bottom: 8px;
  color: var(--text-footer);
}

.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity var(--transition-fade), transform var(--transition-fade);
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

section {
  scroll-margin-top: 80px;
}

::selection {
  background: var(--accent);
  color: #ffffff;
}

::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-body);
}

::-webkit-scrollbar-thumb {
  background: var(--border-search);
  border-radius: 4px;
  transition: background var(--transition-fast);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--accent);
}

@media (max-width: 1024px) {
  .nav-links {
    gap: 20px;
  }
  .nav-links a {
    font-size: 0.88rem;
  }
  .search-box input {
    width: 110px;
  }
}

@media (max-width: 900px) {
  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }
  .nav-links {
    display: none;
  }
  .menu-toggle {
    display: flex;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
  h1 {
    font-size: 1.8rem;
  }
  h2 {
    font-size: 1.4rem;
    margin: 32px 0 14px;
  }
  h3 {
    font-size: 1.15rem;
  }
  .carousel-slide h2 {
    font-size: 1.5rem;
  }
  .carousel-slide {
    padding: 36px 24px;
    min-height: 220px;
  }
  .carousel-slide p {
    font-size: 1rem;
  }
  .card {
    padding: 20px;
  }
  .back-to-top {
    bottom: 20px;
    right: 20px;
    width: 42px;
    height: 42px;
    font-size: 1.3rem;
  }
}

@media (max-width: 600px) {
  body {
    padding-top: 62px;
  }
  .nav-container {
    height: 62px;
    padding: 0 16px;
  }
  .logo {
    font-size: 1.25rem;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .search-box input {
    width: 80px;
    font-size: 0.85rem;
  }
  .search-box {
    padding: 2px 8px;
  }
  .nav-actions {
    gap: 8px;
  }
  .theme-toggle,
  .menu-toggle {
    width: 36px;
    height: 36px;
    font-size: 1.15rem;
  }
  h1 {
    font-size: 1.5rem;
    margin: 16px 0 12px;
  }
  h2 {
    font-size: 1.25rem;
    padding-left: 12px;
    border-left-width: 4px;
  }
  h3 {
    font-size: 1.05rem;
  }
  .container {
    padding: 0 16px;
  }
  .banner-carousel {
    margin: 16px 0 24px;
    border-radius: 16px;
  }
  .carousel-slide {
    padding: 28px 20px;
    min-height: 190px;
  }
  .carousel-slide h2 {
    font-size: 1.25rem;
  }
  .carousel-slide p {
    font-size: 0.9rem;
  }
  .card {
    padding: 16px;
    border-radius: 14px;
    margin-bottom: 16px;
  }
  .faq-item {
    padding: 14px 16px;
  }
  .article-item {
    padding: 16px;
  }
  .howto-step {
    padding: 16px;
  }
  .footer {
    padding: 32px 0 20px;
    margin-top: 40px;
    border-radius: 20px 20px 0 0;
  }
  .footer-bottom {
    font-size: 0.8rem;
  }
  .back-to-top {
    bottom: 16px;
    right: 16px;
    width: 38px;
    height: 38px;
    font-size: 1.2rem;
  }
  ul,
  ol {
    margin-left: 18px;
  }
}

@media (max-width: 380px) {
  .search-box {
    display: none;
  }
  .logo {
    font-size: 1.1rem;
  }
}

@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;
  }
  .fade-in {
    opacity: 1;
    transform: none;
  }
}

@media print {
  .site-header,
  .back-to-top,
  .mobile-menu,
  .banner-carousel,
  .footer {
    display: none;
  }
  body {
    padding-top: 0;
    background: #fff;
    color: #000;
  }
  .card,
  .faq-item,
  .article-item,
  .howto-step {
    box-shadow: none;
    border: 1px solid #ccc;
  }
}