/* ============================================
   殴易官网 - 主样式表
   专业加密资产交易平台风格
   ============================================ */

/* CSS 重置 */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --primary-color: #1a73e8;
  --primary-dark: #0d47a1;
  --secondary-color: #00d4aa;
  --accent-color: #ff6b35;
  --bg-dark: #0a0e27;
  --bg-darker: #060818;
  --bg-card: #131a3a;
  --bg-card-hover: #1a2352;
  --text-primary: #ffffff;
  --text-secondary: #b0b8d0;
  --text-muted: #6b7299;
  --border-color: #2a3366;
  --gradient-primary: linear-gradient(135deg, #1a73e8 0%, #00d4aa 100%);
  --gradient-dark: linear-gradient(180deg, #0a0e27 0%, #060818 100%);
  --gradient-card: linear-gradient(145deg, #1a2352 0%, #131a3a 100%);
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 30px rgba(26, 115, 232, 0.3);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  background-color: var(--bg-darker);
  color: var(--text-primary);
  line-height: 1.7;
  overflow-x: hidden;
  min-height: 100vh;
}

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

a {
  color: var(--primary-color);
  text-decoration: none;
  transition: var(--transition);
}

a:hover {
  color: var(--secondary-color);
}

ul, ol {
  list-style: none;
}

button {
  cursor: pointer;
  border: none;
  background: none;
  font-family: inherit;
  transition: var(--transition);
}

/* ============================================
   布局容器
   ============================================ */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 100px 0;
  position: relative;
}

.section-header {
  text-align: center;
  margin-bottom: 60px;
}

.section-header h2 {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 16px;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-header p {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

/* ============================================
   导航栏
   ============================================ */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(10, 14, 39, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-color);
  transition: var(--transition);
}

.header.scrolled {
  background: rgba(6, 8, 24, 0.98);
  box-shadow: var(--shadow-md);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
}

.nav-brand .brand-icon {
  width: 40px;
  height: 40px;
  background: var(--gradient-primary);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  color: white;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 36px;
}

.nav-menu a {
  color: var(--text-secondary);
  font-size: 0.95rem;
  font-weight: 500;
  position: relative;
  padding: 8px 0;
}

.nav-menu a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-primary);
  transition: width 0.3s ease;
}

.nav-menu a:hover,
.nav-menu a.active {
  color: var(--text-primary);
}

.nav-menu a:hover::after,
.nav-menu a.active::after {
  width: 100%;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 28px;
  border-radius: var(--radius-md);
  font-size: 0.95rem;
  font-weight: 600;
  transition: var(--transition);
  text-align: center;
  white-space: nowrap;
}

.btn-primary {
  background: var(--gradient-primary);
  color: white;
  box-shadow: 0 4px 15px rgba(26, 115, 232, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 25px rgba(26, 115, 232, 0.4);
  color: white;
}

.btn-outline {
  border: 1px solid var(--border-color);
  color: var(--text-primary);
}

.btn-outline:hover {
  border-color: var(--primary-color);
  background: rgba(26, 115, 232, 0.1);
}

.btn-lg {
  padding: 16px 40px;
  font-size: 1.05rem;
}

.mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
}

.mobile-toggle span {
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: var(--transition);
}

.mobile-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.mobile-toggle.active span:nth-child(2) {
  opacity: 0;
}

.mobile-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* ============================================
   Hero 区域
   ============================================ */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  background: var(--gradient-dark);
  overflow: hidden;
  padding-top: 100px;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, rgba(26, 115, 232, 0.15) 0%, transparent 70%);
  border-radius: 50%;
  animation: float 20s ease-in-out infinite;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(0, 212, 170, 0.1) 0%, transparent 70%);
  border-radius: 50%;
  animation: float 25s ease-in-out infinite reverse;
}

@keyframes float {
  0%, 100% { transform: translate(0, 0); }
  50% { transform: translate(30px, -30px); }
}

.hero-content {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.hero-text {
  animation: fadeInUp 1s ease;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: rgba(26, 115, 232, 0.15);
  border: 1px solid rgba(26, 115, 232, 0.3);
  border-radius: 50px;
  font-size: 0.85rem;
  color: var(--secondary-color);
  margin-bottom: 24px;
}

.hero-badge .dot {
  width: 8px;
  height: 8px;
  background: var(--secondary-color);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.hero h1 {
  font-size: 3.5rem;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 24px;
}

.hero h1 .highlight {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-desc {
  font-size: 1.15rem;
  color: var(--text-secondary);
  margin-bottom: 40px;
  max-width: 500px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  margin-bottom: 50px;
  flex-wrap: wrap;
}

.hero-stats {
  display: flex;
  gap: 40px;
  flex-wrap: wrap;
}

.hero-stat {
  text-align: left;
}

.hero-stat .stat-value {
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-primary);
}

.hero-stat .stat-label {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.hero-visual {
  position: relative;
  animation: fadeInRight 1s ease;
}

.hero-image-wrapper {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.hero-image-wrapper img {
  width: 100%;
  height: 450px;
  object-fit: cover;
}

.hero-image-wrapper::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(26, 115, 232, 0.2) 0%, rgba(0, 212, 170, 0.1) 100%);
}

.hero-card {
  position: absolute;
  background: rgba(19, 26, 58, 0.95);
  backdrop-filter: blur(20px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  box-shadow: var(--shadow-lg);
}

.hero-card-1 {
  top: 30px;
  left: -30px;
  animation: floatY 4s ease-in-out infinite;
}

.hero-card-2 {
  bottom: 30px;
  right: -30px;
  animation: floatY 5s ease-in-out infinite reverse;
}

@keyframes floatY {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

.hero-card .card-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-bottom: 4px;
}

.hero-card .card-value {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-primary);
}

.hero-card .card-change {
  font-size: 0.8rem;
  color: var(--secondary-color);
  margin-top: 2px;
}

/* ============================================
   特性区域
   ============================================ */
.features {
  background: var(--bg-darker);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.feature-card {
  background: var(--gradient-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 40px 30px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: var(--gradient-primary);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s ease;
}

.feature-card:hover {
  transform: translateY(-8px);
  border-color: var(--primary-color);
  box-shadow: var(--shadow-glow);
}

.feature-card:hover::before {
  transform: scaleX(1);
}

.feature-icon {
  width: 64px;
  height: 64px;
  background: rgba(26, 115, 232, 0.15);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  margin-bottom: 24px;
  transition: var(--transition);
}

.feature-card:hover .feature-icon {
  background: var(--gradient-primary);
  transform: scale(1.1) rotate(5deg);
}

.feature-card h3 {
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--text-primary);
}

.feature-card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
}

/* ============================================
   服务/产品区域
   ============================================ */
.services {
  background: var(--bg-dark);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 30px;
}

.service-card {
  background: var(--gradient-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition);
}

.service-card:hover {
  transform: translateY(-5px);
  border-color: var(--primary-color);
  box-shadow: var(--shadow-md);
}

.service-image {
  height: 220px;
  overflow: hidden;
}

.service-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.service-card:hover .service-image img {
  transform: scale(1.1);
}

.service-content {
  padding: 30px;
}

.service-tag {
  display: inline-block;
  padding: 4px 12px;
  background: rgba(0, 212, 170, 0.15);
  color: var(--secondary-color);
  border-radius: 4px;
  font-size: 0.8rem;
  font-weight: 500;
  margin-bottom: 16px;
}

.service-content h3 {
  font-size: 1.4rem;
  font-weight: 600;
  margin-bottom: 12px;
}

.service-content p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 20px;
  line-height: 1.7;
}

.service-features {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 24px;
}

.service-features li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.service-features li::before {
  content: '✓';
  color: var(--secondary-color);
  font-weight: 700;
}

/* ============================================
   详细内容区域
   ============================================ */
.about-section {
  background: var(--bg-darker);
}

.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.about-image {
  position: relative;
}

.about-image img {
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}

.about-image::after {
  content: '';
  position: absolute;
  top: 20px;
  left: 20px;
  right: -20px;
  bottom: -20px;
  border: 2px solid var(--primary-color);
  border-radius: var(--radius-lg);
  z-index: -1;
}

.about-text h2 {
  font-size: 2.2rem;
  font-weight: 700;
  margin-bottom: 20px;
  line-height: 1.3;
}

.about-text p {
  color: var(--text-secondary);
  margin-bottom: 16px;
  line-height: 1.8;
}

.about-highlights {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin-top: 30px;
}

.highlight-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.highlight-num {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  background: var(--gradient-primary);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.9rem;
}

.highlight-text h4 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.highlight-text p {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 0;
}

/* ============================================
   CTA 区域
   ============================================ */
.cta {
  background: var(--gradient-primary);
  position: relative;
  overflow: hidden;
  text-align: center;
}

.cta::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  opacity: 0.5;
}

.cta-content {
  position: relative;
  z-index: 2;
}

.cta h2 {
  font-size: 2.8rem;
  font-weight: 700;
  margin-bottom: 16px;
  color: white;
}

.cta p {
  font-size: 1.2rem;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 40px;
}

.cta .btn-white {
  background: white;
  color: var(--primary-color);
  padding: 18px 50px;
  font-size: 1.05rem;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.2);
}

.cta .btn-white:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
  color: var(--primary-dark);
}

/* ============================================
   FAQ 区域
   ============================================ */
.faq {
  background: var(--bg-dark);
}

.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  margin-bottom: 16px;
  overflow: hidden;
  transition: var(--transition);
}

.faq-item:hover {
  border-color: var(--primary-color);
}

.faq-question {
  width: 100%;
  padding: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-primary);
  text-align: left;
  cursor: pointer;
}

.faq-question .faq-icon {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  background: rgba(26, 115, 232, 0.15);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  transition: var(--transition);
  margin-left: 16px;
}

.faq-item.active .faq-icon {
  transform: rotate(45deg);
  background: var(--gradient-primary);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.4s ease;
}

.faq-item.active .faq-answer {
  max-height: 500px;
  padding: 0 24px 24px;
}

.faq-answer p {
  color: var(--text-secondary);
  line-height: 1.8;
}

/* ============================================
   页脚
   ============================================ */
.footer {
  background: var(--bg-darker);
  border-top: 1px solid var(--border-color);
  padding-top: 80px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 50px;
  padding-bottom: 60px;
}

.footer-brand p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.8;
  margin-top: 16px;
  max-width: 320px;
}

.footer-social {
  display: flex;
  gap: 12px;
  margin-top: 24px;
}

.footer-social a {
  width: 40px;
  height: 40px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  font-size: 1.1rem;
  transition: var(--transition);
}

.footer-social a:hover {
  background: var(--gradient-primary);
  color: white;
  border-color: transparent;
  transform: translateY(-3px);
}

.footer-col h4 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 24px;
  color: var(--text-primary);
}

.footer-col ul li {
  margin-bottom: 12px;
}

.footer-col ul li a {
  color: var(--text-secondary);
  font-size: 0.9rem;
  transition: var(--transition);
}

.footer-col ul li a:hover {
  color: var(--secondary-color);
  padding-left: 4px;
}

.footer-bottom {
  border-top: 1px solid var(--border-color);
  padding: 30px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-bottom p {
  color: var(--text-muted);
  font-size: 0.85rem;
}

.footer-bottom-links {
  display: flex;
  gap: 24px;
}

.footer-bottom-links a {
  color: var(--text-muted);
  font-size: 0.85rem;
}

.footer-bottom-links a:hover {
  color: var(--text-secondary);
}

/* ============================================
   页面头部（内页）
   ============================================ */
.page-header {
  padding: 160px 0 80px;
  background: var(--gradient-dark);
  position: relative;
  overflow: hidden;
}

.page-header::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(26, 115, 232, 0.1) 0%, transparent 70%);
  border-radius: 50%;
}

.page-header-content {
  position: relative;
  z-index: 2;
  text-align: center;
}

.breadcrumb {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 20px;
}

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

.breadcrumb a:hover {
  color: var(--secondary-color);
}

.breadcrumb .separator {
  color: var(--border-color);
}

.page-header h1 {
  font-size: 2.8rem;
  font-weight: 700;
  margin-bottom: 16px;
}

.page-header p {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

/* ============================================
   新闻列表
   ============================================ */
.news-list-section {
  background: var(--bg-darker);
}

.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.news-card {
  background: var(--gradient-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition);
}

.news-card:hover {
  transform: translateY(-5px);
  border-color: var(--primary-color);
  box-shadow: var(--shadow-md);
}

.news-card-image {
  height: 200px;
  overflow: hidden;
}

.news-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.news-card:hover .news-card-image img {
  transform: scale(1.1);
}

.news-card-content {
  padding: 24px;
}

.news-card-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 12px;
}

.news-card-meta span {
  display: flex;
  align-items: center;
  gap: 4px;
}

.news-card h3 {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 12px;
  line-height: 1.5;
  transition: var(--transition);
}

.news-card:hover h3 {
  color: var(--primary-color);
}

.news-card p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.7;
  margin-bottom: 16px;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-card .read-more {
  color: var(--primary-color);
  font-size: 0.9rem;
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.news-card .read-more::after {
  content: '→';
  transition: transform 0.3s ease;
}

.news-card:hover .read-more::after {
  transform: translateX(5px);
}

/* ============================================
   新闻详情
   ============================================ */
.news-detail-section {
  background: var(--bg-darker);
}

.news-detail-content {
  max-width: 800px;
  margin: 0 auto;
}

.news-detail-header {
  margin-bottom: 40px;
}

.news-detail-header h1 {
  font-size: 2.2rem;
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 20px;
}

.news-detail-meta {
  display: flex;
  align-items: center;
  gap: 24px;
  color: var(--text-muted);
  font-size: 0.9rem;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border-color);
}

.news-detail-image {
  margin-bottom: 40px;
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.news-detail-image img {
  width: 100%;
  height: 450px;
  object-fit: cover;
}

.news-detail-body {
  color: var(--text-secondary);
  line-height: 1.9;
  font-size: 1.05rem;
}

.news-detail-body p {
  margin-bottom: 20px;
}

.news-detail-body h2 {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: 40px 0 20px;
}

.news-detail-body h3 {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: 30px 0 16px;
}

.news-detail-body ul,
.news-detail-body ol {
  margin: 16px 0;
  padding-left: 24px;
}

.news-detail-body li {
  margin-bottom: 8px;
}

.news-detail-body ul li {
  list-style: disc;
}

.news-detail-body ol li {
  list-style: decimal;
}

.news-detail-body blockquote {
  border-left: 4px solid var(--primary-color);
  padding: 16px 24px;
  margin: 24px 0;
  background: var(--bg-card);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  color: var(--text-secondary);
  font-style: italic;
}

/* ============================================
   联系页面
   ============================================ */
.contact-section {
  background: var(--bg-darker);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 50px;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 30px;
}

.contact-card {
  background: var(--gradient-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 30px;
  transition: var(--transition);
}

.contact-card:hover {
  border-color: var(--primary-color);
  transform: translateY(-3px);
}

.contact-card-icon {
  width: 48px;
  height: 48px;
  background: var(--gradient-primary);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  margin-bottom: 16px;
}

.contact-card h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.contact-card p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.6;
}

.contact-form {
  background: var(--gradient-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 40px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 0.9rem;
  font-weight: 500;
  margin-bottom: 8px;
  color: var(--text-secondary);
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 14px 18px;
  background: var(--bg-darker);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 0.95rem;
  font-family: inherit;
  transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(26, 115, 232, 0.2);
}

.form-group textarea {
  resize: vertical;
  min-height: 140px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

/* ============================================
   动画
   ============================================ */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInRight {
  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);
  }
}

.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* ============================================
   响应式设计
   ============================================ */
@media (max-width: 1024px) {
  .hero h1 {
    font-size: 2.8rem;
  }

  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }

  .news-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .contact-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .nav-menu,
  .nav-actions {
    display: none;
  }

  .mobile-toggle {
    display: flex;
  }

  .nav-menu.active {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    background: rgba(6, 8, 24, 0.98);
    backdrop-filter: blur(20px);
    padding: 30px;
    gap: 20px;
    border-bottom: 1px solid var(--border-color);
  }

  .hero-content {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero-text {
    order: 2;
  }

  .hero-visual {
    order: 1;
  }

  .hero h1 {
    font-size: 2.2rem;
  }

  .hero-desc {
    margin-left: auto;
    margin-right: auto;
  }

  .hero-actions {
    justify-content: center;
  }

  .hero-stats {
    justify-content: center;
  }

  .features-grid {
    grid-template-columns: 1fr;
  }

  .services-grid {
    grid-template-columns: 1fr;
  }

  .about-content {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .news-grid {
    grid-template-columns: 1fr;
  }

  .section-header h2 {
    font-size: 2rem;
  }

  .cta h2 {
    font-size: 2rem;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .hero-card-1 {
    left: 10px;
  }

  .hero-card-2 {
    right: 10px;
  }

  .about-image::after {
    display: none;
  }
}

@media (max-width: 480px) {
  .hero h1 {
    font-size: 1.8rem;
  }

  .section {
    padding: 60px 0;
  }

  .section-header h2 {
    font-size: 1.6rem;
  }

  .page-header h1 {
    font-size: 2rem;
  }

  .btn {
    padding: 10px 20px;
    font-size: 0.9rem;
  }
}

/* ============================================
   加载动画
   ============================================ */
.page-loader {
  position: fixed;
  inset: 0;
  background: var(--bg-darker);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  transition: opacity 0.5s ease, visibility 0.5s ease;
}

.page-loader.hidden {
  opacity: 0;
  visibility: hidden;
}

.loader-spinner {
  width: 50px;
  height: 50px;
  border: 3px solid var(--border-color);
  border-top-color: var(--primary-color);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}